2024-03-29T13:02:38Z
http://www.sciencepubco.com/index.php/IJSW/oai
oai:ojs.pkp.sfu.ca:article/660
2014-11-13T03:20:24Z
IJSW:ART
nmb a2200000Iu 4500
"130303 2013 eng "
2307-9037
10.14419/ijsw.v1i1.660
doi
dc
Design of a Shorted Patch Antenna Suspended On Air for Bluetooth and UNII Bands by Using Genetic Algorithms, “THIS PAPER HAS BEEN WITHDRAWN”
Jayasinghe, Jeevani Windhya
Wayamba university of Sri Lanka
“THIS PAPER HAS BEEN WITHDRAWN”
Science Publishing Corporation
2013-03-03 12:45:24
http://www.sciencepubco.com/index.php/IJSW/article/view/660
International Journal of Scientific World; Vol. 1 No. 1 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/731
2015-06-15T05:01:22Z
IJSW:ART
nmb a2200000Iu 4500
"130406 2013 eng "
2307-9037
10.14419/ijsw.v1i1.731
doi
dc
Simulation of Wedge Water Entry using Smoothed Particle Hydrodynamics Method
Farsi, Mohammad
Amirkabir University of Technology, Iran
Ghadimi, Parviz
Amirkabir University of Technology, Iran
Zamanian, Rahim
Amirkabir University of Technology, Iran
Dashtimanesh, Abbas
Amirkabir University of Technology, Iran
This article presents a study based on the smoothed particles hydrodynamics method, aiming at a numerical simulation of solid–fluid coupling in a free surface flow. Smoothed Particle Hydrodynamics method (SPH) represents a very interesting alternative method to classical mesh-based methods such as Finite-Volume, Finite-Difference or Finite-Element Methods. The SPH scheme is first described and discussed through its formulations. Two test cases of wedge water entry are presented. To accomplish this, 2D-SPH models in conjunction with turbulence model are implemented and MLS density filter is utilized to remove pressure fluctuations. Pressure distribution, time history of pressure and free surface level are provided. In order to validate the obtained free surface, free surface of dam bre+ak problem is simulated and compared with experimental result. Also, the obtained pressure distribution is compared with the analytical result of similarity solution.
Science Publishing Corporation
2013-03-03 12:45:24
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http://www.sciencepubco.com/index.php/IJSW/article/view/731
International Journal of Scientific World; Vol. 1 No. 1 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/844
2014-11-13T03:20:27Z
IJSW:ART
nmb a2200000Iu 4500
"130814 2013 eng "
2307-9037
10.14419/ijsw.v1i2.844
doi
dc
Hydrodynamic analysis of flow around square cylinders and determination of the strouhal number as a function of angles of attack and reynolds numbers
Razughi, Sabra
Amirkabir University of Technology, Iran
Ghadimi, Parviz
Amirkabir University of Technology, Iran
Kermani, Saman
Amirkabir University of Technology, Iran
Hydrodynamic analysis of flow around square cylinders at different inclined angles of attach ranging from 0 to 45 at low Reynolds numbers, both in water and air, has been carried out using commercial software ANSYS CFX. Twenty different square cylinders were modeled at angles 0, 5, 10, 15, 20, 25, 30, 40 & 45 degrees. Results obtained by the hydrodynamic analyses were analyzed by Eureqa software to find a relation between non dimensional parameters. Strouhal number was determined to be a function of angle of attack and 1/Re in water and air. The obtained formulas were tested at two random angles of 33 and 50 against the results of Ansys-CFX. Comparison displayed good agreement which is demonstrative of the acceptability of the obtained relationships.
Science Publishing Corporation
2013-06-23 13:47:40
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http://www.sciencepubco.com/index.php/IJSW/article/view/844
International Journal of Scientific World; Vol. 1 No. 2 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1013
2014-11-13T03:20:29Z
IJSW:ART
nmb a2200000Iu 4500
"130623 2013 eng "
2307-9037
10.14419/ijsw.v1i2.1013
doi
dc
On the numerical simulation of turbulent pipe flow pattern using Comsol Multiphysics
MUSTAPHA, LATEEF OLAJUWON
DEPARTMENT OF PHYSICS, LAGOS STATE POLYTECHNIC IKORODU. LAGOS STATE.
Adekanle, Olorunyomi John
department of physics, University of Ibadan
Adetoyinbo, A A
Department of Physics, University of Ibadan, Ibadan
Kolebaje, Tosin Olusola
Department of Physics, University of Ibadan, Ibadan
In this paper, two dimensional pipe of length 0.8m and diameter 0.3m, 0.4m, and 0.45m were simulated respectively using Comsol Multiphysics 4.0 software. The governing equations and the k.? model which accounts for the turbulent kinetic energy k and turbulent dissipation rate ? were solved using the simulator. The behaviors of the fluid were investigated at radius of 0.23m, 0.33m, and 0.38m respectively near the pipe wall to study its possible impact on the pipe wall. Changing in flow pattern with increasing velocity was observed which may cause a phenomenon such as heat transfer and consequently increase the mixing rate of dissolved substance. However, the results showed there is an indication that the inner wall of the pipes coated with thin film that reduces corrosion gradually decreases down the pipes due to the impact of the turbulent kinetic energy and turbulent dissipation rate on the pipe walls.
Science Publishing Corporation
2013-06-23 13:47:40
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http://www.sciencepubco.com/index.php/IJSW/article/view/1013
International Journal of Scientific World; Vol. 1 No. 2 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1056
2014-11-13T03:20:31Z
IJSW:ART
nmb a2200000Iu 4500
"130908 2013 eng "
2307-9037
10.14419/ijsw.v1i2.1056
doi
dc
Development of a mathematical model for simultaneous heave, pitch and roll motions of planing vessel in regular waves
Ghadimi, Parviz
Amirkabir University of Technology, Iran
Dashtimanesh, Abbas
Amirkabir University of Technology, Iran
Djeddi, Seyed Reza
Amirkabir University of Technology, Iran
Faghfoor Maghrebi, Yaser
Amirkabir University of Technology, Iran
The market for planing boats has shown steady growth in the recent years and this has caused an increase in the need for designing tools. The need is even more vital for the prediction of seakeeping and maneuverability of planing boats. Although the numerical methods are proved to be useful for the displacement vessels, they seem to be relatively impractical dealing with the complexities of the hydrodynamic behavior of planing boats. In this paper, a simple method for prediction of Heave, Pitch and Roll motions of the planing vessels in regular waves is presented. In the formulation of the present mathematical model, a 2-dimensional technique using momentum theory is applied. Different aspects of the added mass and 2D+t theories are also implemented for the section-based simulations of the planing vessel. The developed method is analyzed through a set of validation tests while the experimental results of the literature are used in order to validate the obtained results. The results are then evaluated in different degrees of freedom and favorable agreement has been achieved against the experimental data.
Science Publishing Corporation
2013-06-23 13:47:40
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http://www.sciencepubco.com/index.php/IJSW/article/view/1056
International Journal of Scientific World; Vol. 1 No. 2 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1107
2014-11-13T03:20:32Z
IJSW:ART
nmb a2200000Iu 4500
"130808 2013 eng "
2307-9037
10.14419/ijsw.v1i2.1107
doi
dc
Molecular Weight and Solubility Studies of Some Novel Polyaniline Induced by Montmorillonite clay Called Maghnite-H+ (Algerian MMT)
Rahmouni, Abdelkader
Amine, Harrane
Mohammed, Belbachir
Aniline is well known to be polymerized by protonic acid such as chlorhydric acid (HCl?. The cationic polymerization of ANI was examined in the presence of Mag-H+ (eco-catalyst layered) powder in bulk at 0°C. In this paper, polyaniline (PANI)/Na+-maghnite (Mag) clay nanocomposite materials have been successfully prepared for the heterogeneous polymerization of aniline. The prepared samples were subsequently characterized by FTIR spectroscopy, 1H-NMR spectroscopy and gel permeation chromatography (GPC). It should be noted that the nanocomposite coating containing 1wt. %, 3wt. %, and 5wt. % of clay loading was found to exhibit an observable structure, physicochemical properties and controlled molecular weight. Oxidation states of PANI were found to influence the gel content molecular weight distribution,solubilite and conductivity of homopolymer produced, conformation and configuration of the polymer molecules.
Science Publishing Corporation
2013-06-23 13:47:40
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http://www.sciencepubco.com/index.php/IJSW/article/view/1107
International Journal of Scientific World; Vol. 1 No. 2 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1151
2015-04-20T03:37:54Z
IJSW:ART
nmb a2200000Iu 4500
"130804 2013 eng "
2307-9037
10.14419/ijsw.v1i2.1151
doi
dc
Artificial neural networks (ANNs) in food science a review
Goyal, Sumit
IDA, India
Array
Artificial Neural Networks (ANNs) have been applied in several areas, viz., science and technology, engineering, agriculture, life sciences and medicine as they have a remarkable ability to provide accurate results. This communication highlights the systematic information available in the literature concerning the implementation of ANN models for predicting properties of dairy products, fruits, vegetables and meat. The information presented in this review paper shows that over the last decade research related to ANN based predictive modelling in food science has picked up.
Science Publishing Corporation
2013-06-23 13:47:40
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http://www.sciencepubco.com/index.php/IJSW/article/view/1151
International Journal of Scientific World; Vol. 1 No. 2 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1252
2014-11-13T03:20:36Z
IJSW:ART
nmb a2200000Iu 4500
"130913 2013 eng "
2307-9037
10.14419/ijsw.v1i3.1252
doi
dc
Bayesian estimation of generalized half logistic type II doubly censored data
Azimi, Reza
This study considers the estimation problem for the parameter and reliability function of generalized half logistic distribution under Type II Doubly censored data. We use the Bayesian procedures (under asymmetric loss functions (Linex and general entropy) and symmetric loss function (squared-error)) to obtain the estimators of parameter and reliability function of generalized half logistic distribution .
Science Publishing Corporation
2013-09-13 06:07:33
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http://www.sciencepubco.com/index.php/IJSW/article/view/1252
International Journal of Scientific World; Vol. 1 No. 3 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1267
2014-11-13T03:20:38Z
IJSW:ART
nmb a2200000Iu 4500
"131027 2013 eng "
2307-9037
10.14419/ijsw.v1i3.1267
doi
dc
A risk based approach for the assessment of natural hazards in the UAE
Alsenaani, Haitham
Civil developments have raised the necessity for conducting natural hazards risk assessment. This study employs the method of risk matrix applied on natural hazards for seismic, flooding and tsunami. In addition to the former hazards, Dust-Sand Storms “DSS” and climate change have been assessed in a form of context discussion. DSS assessment in particular is a vital element in terms of evaluating the natural hazards. This issue is unique and site specific for the UAE. The screening of a variety of information from different advanced countries identified that they do not consider DSS within their risk assessments. This study has been conducted using mainly the risk matrix as the primary assessment tool combining the probability of occurrences and severity.
Several risk matrices are developed to accumulate all historical, scientific and other global data that is used for the comparison of risk levels between the UAE and the rest of the world. In this work, the susceptibility of regions to natural hazards has been taken into account under the aspects of historical events recorded with respect to the geographical location. Vulnerable regions are represented through hazard maps as a result of the risk assessment. The overall outputs show encouraging results in some regions of the UAE. Although the assessment presents lower risk regions, it should be emphasized that minimizing the uncertainty by acquiring more historical data is required.
Science Publishing Corporation
2013-09-13 06:07:33
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http://www.sciencepubco.com/index.php/IJSW/article/view/1267
International Journal of Scientific World; Vol. 1 No. 3 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1311
2014-11-13T03:20:40Z
IJSW:ART
nmb a2200000Iu 4500
"130930 2013 eng "
2307-9037
10.14419/ijsw.v1i3.1311
doi
dc
A new strategy for synthesis of microspheres amphiphilic block copolymer based on Epichlorohydrin and N-viny-2-pyrrolidone induced by an ecologic clay catalyst called Maghnite-H+ (Algerian MMT)
Rahmouni, Abdelkader
oran university
Djelloul, Bendaho
Issam, Ferrahi Mohammed
Mohammed, Belbachir
Biodegradable copolymer microsphere poly (ECH-co-NVP) was synthesized by a ring-opening polymerization process of Epichlorohydrin and N-vinyl-2-pyrrolidone.The copolymerization of Epichlorohydrin (ECH) and N-vinyl-2-pyrrolidone (NVP) catalyzed by Maghnite-H+ (Mag-H+) was investigated. The effect of some factors such as the amount of the catalyst (Maghnite-H+) and the temperature of reaction. It was found that the copolymerization rate increased with increase in the temperature and the proportion of catalyst, and it was larger in nonpolar solvents. The product was characterized by various technic characterizations such as FTIR and 1H-NMR.
Science Publishing Corporation
2013-09-13 06:07:33
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http://www.sciencepubco.com/index.php/IJSW/article/view/1311
International Journal of Scientific World; Vol. 1 No. 3 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1353
2014-11-13T03:20:41Z
IJSW:ART
nmb a2200000Iu 4500
"131021 2013 eng "
2307-9037
10.14419/ijsw.v1i3.1353
doi
dc
Application of Gold Ore Tailings (GOT) as a source of micronutrients for the growth of plants
G, Swaroop
Newcastle University, United Kingdom
Bulbule, Keshav
Bangalore University
P, Parthasarathy
Shivakumar, Yogesh
Muniswamy, Ranjith
Annamati, Reshma
D, Priyanka
Plants require sixteen nutrients that include both macro and micronutrients. Along with macronutrients N, P, K, micronutrients Cu, Fe, Mn, Zn, S etc., play a vital role not only for the healthy growth of the plants but also in the increased yield of the produce. Many factors like the quality and composition of the soil, the types of the fertilizers used and supply of micronutrients decide the growth of the plant and the yield of the commercial crops. It is an established fact that Mining wastes all over the world are found to contain un-extracted metals and non-metals present in the residue. Such residues are known as Ore Tailings and have been used as a best source of micronutrients. Karnataka state is rich in terms of mineral wealth. Hutti Gold Mine of Raichur district of Karnataka state is the leading Gold producer of India. On the lines of COT (Copper Ore Tailings), present research work focuses on the use of GOT (Gold Ore Tailings) as a source of micronutrients. The present innovative research work, once becomes successful will be certainly a boon to the farmers, helps in the judicious use of thousands of tons of GOT as a source of micronutrients and further for the safe disposal of the left over residue in an environment friendly way not only in our country but also elsewhere in the world.
Science Publishing Corporation
2013-09-13 06:07:33
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application/vnd.openxmlformats-officedocument.wordprocessingml.document
application/pdf
http://www.sciencepubco.com/index.php/IJSW/article/view/1353
International Journal of Scientific World; Vol. 1 No. 3 (2013)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1780
2014-11-13T03:20:43Z
IJSW:ART
nmb a2200000Iu 4500
"140216 2014 eng "
2307-9037
10.14419/ijsw.v2i1.1780
doi
dc
Statistical inference for generalized Pareto distribution based on progressive Type-II censored data with random removals
Azimi, Reza
Fasihi, Bahman
Azimi Sarikhanbaglu, Faramarz
In this article, We consider the estimation problems of the parameter and reliability function of the generalized Pareto distribution based on a progressively type-II censored sample with random (Binomial) removals. we use the method of maximum likelihood and Bayesian estimation to estimate parameter and reliability function. Bayesian estimates are derived under squared error and LINEX loss functions. we also construct the confidence interval for the parameter of generalized Pareto distribution based on a progressively type-II censored sample with random removals. The comparisons between different estimators are made based on simulation study.
Keywords: Generalized Pareto distribution, progressive Type-II censored, random removals, Bayesian estimates, reliability function.
Science Publishing Corporation
2014-02-16 12:06:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/1780
International Journal of Scientific World; Vol. 2 No. 1 (2014)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/1785
2014-11-13T03:20:46Z
IJSW:ART
nmb a2200000Iu 4500
"140419 2014 eng "
2307-9037
10.14419/ijsw.v2i1.1785
doi
dc
Molecular marker assisted selection as approach to increase the selection efficiency of drought tolerant genotypes
Shiri, Mohammadreza
scientific member of Agricultural and Natural Resources Research Center of Ardebil Province, Moghan, Iran.
Akhavan, Karamat
scientific member of Agricultural and Natural Resources Research Center of Ardebil Province, Moghan, Iran.
Identifying the complete-linked molecular markers with target gene and mapping its chromosome locus is an important goal in plant breeding for gene cloning and marker-aided selection. Due to complexity of the interactions, in most of the agronomic traits, especially the interaction between the grain yield and the environmental factors, classic methods do not function appropriately in improving agronomic traits at present. If the selection is made based on genotype by DNA markers, the efficiency of selection will increase considerably. In a genetic evaluation program, the combination between the data from the linkage between marker position and quantitative traits loci (QTL) as well as the phenotypic data can be used to increase the accuracy of the assessments and thereby the accuracy of selection. The selection in which inherited values are used along with the marker data in selection of superior genotypes in a breeding program is called Marker-assisted-selection (MAS).
Keywords: MAS, QTL, Water Stress, Maize.
Science Publishing Corporation
2014-02-16 12:06:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/1785
International Journal of Scientific World; Vol. 2 No. 1 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/1893
2014-11-13T03:20:49Z
IJSW:ART
nmb a2200000Iu 4500
"140311 2014 eng "
2307-9037
10.14419/ijsw.v2i1.1893
doi
dc
Effect of Ivermectin against Psoroptic mange in rabbits
Sivajothi, S
Assistant Professor
Reddy, B.Sudhakara
Rayulu, V.C.
The present report is on Psoroptic mange infestation in rabbits. Out of 126 rabbits in a farm 34 were infested. Observed clinical signs were alopecia, crusts formation, superficial and deep skin fissures and itching. Distribution of lesions was noticed around the base of ears, margins of the ears and face. Skin scrapings from infested rabbits were examined and eggs, larvae, nymphs and adult mites were recovered. The infected rabbits were treated with ivermectin @ 200µg/kg body weight first day subcutaneously followed by orally once in 48 hours along with antibiotic and supportive therapy. Improvement in the condition was noticed after 4th day of therapy.
Keywords: Psoriatic mange, Rabbits, Ivermectin.
Science Publishing Corporation
2014-02-16 12:06:57
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image/jpeg
http://www.sciencepubco.com/index.php/IJSW/article/view/1893
International Journal of Scientific World; Vol. 2 No. 1 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/1894
2014-11-13T03:20:51Z
IJSW:ART
nmb a2200000Iu 4500
"140311 2014 eng "
2307-9037
10.14419/ijsw.v2i1.1894
doi
dc
Traumatic reticuloperitonitis in cattle: A clinical study
S.REDDY, Bhavanam
Assistant Professor,
C.V.Sc.
Sri Venkateswara Veterinary University.
Reddy, L.S.S.Varaprasad
Sivajothi, S.
Reddy, B. Somasekhara
A cow with history of fever, anorexia, sudden milk drop and stiff gait was referred to the Teaching Veterinary Clinical Complex, College of Veterinary Science; Proddatur. Examination of the cow revealed fever, tachycardia, tachypnoea, with ruminal atony associated with mild bloat and dehydration was noticed. The cow exhibited light pain while palpation at brisket region. Hot and pain full edema was noticed at brisket region and at ventral abdomen. Animal exhibited positive response to metal detector. Haematology revealed significant erythrocytopenia, higher PCV, lower haemoglobin concentration, significant leucocytosis with neutrophilia, presence of more number of immature neutrophils and decreased lymphocyte count. Sero biochemical findings had reduced glucose, sodium, potassium, chloride, calcium, phosphorus levels and increased levels of total protein, globulin, AST, ALT, creatinine was noticed. Cow was treated with Inj. strepto penicillin, Inj.neoprofen along with supportive therapy.
Keywords: Traumatic Reticuloperitonitis, Signs, Laboratory Findings, Cattle.
Science Publishing Corporation
2014-02-16 12:06:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/1894
International Journal of Scientific World; Vol. 2 No. 1 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/2275
2014-11-13T03:20:53Z
IJSW:ART
nmb a2200000Iu 4500
"140521 2014 eng "
2307-9037
10.14419/ijsw.v2i1.2275
doi
dc
Haematological changes in Trypanosoma evansi infected cattle
Sivajothi, S.
Assistant Professor
Sudhakara Reddy, B
Kumari, K. Nalini
Rayulu, V. C.
During the three years period of study twelve cross bred cattle were identified that they were suffering with clinical Trypanosomiasis. Up on clinical examination cattle had anorexia, fever, ocular discharges, dullness and enlarged lymph nodes. Stained peripheral blood examination revealed the presence of Trypanosoma evansi. Haematological abnormalities include decreased TEC, PCV, Hb and TLC values (P<0.01). The present leucopaenia was characterized by neutrophilia, eosinophilia and lymphocytopaenia (P>0.05).
Keywords: Anaemia - Cattle - Haematology - Leucopaenia - T. evansi.
Science Publishing Corporation
2014-02-16 12:06:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/2275
International Journal of Scientific World; Vol. 2 No. 1 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/2366
2014-11-13T03:20:55Z
IJSW:ART
nmb a2200000Iu 4500
"140505 2014 eng "
2307-9037
10.14419/ijsw.v2i1.2366
doi
dc
Stress concentration mitigation in clamped steel plates
Kalita, Kanak
Dept. of Aerospace Engineering & Applied Mechanics
IIEST Shibpur
(Erstwhile Bengal engineering & Science University)
Howrah, West Bengal, India 711103
Steel is used widely in the construction of roads, railways, other infrastructure, appliances, and buildings. Most large modern structures, such as stadiums, skyscrapers, bridges, airports, are supported by a steel skeleton. Steel plates with internal cutouts are widely used in structural members. These cutouts are made into plates to meet various functional and structural requirements. However these cutouts create stress concentration and eventually reduce the mechanical strength of the structure. The present study aims at reducing this stress concentration around the central hole by introduction of a proposed scheme of auxiliary holes. Reduction in stress concentration with symmetric and asymmetric auxiliary holes is studied. Findings of the study are made available here in both numerical data and graphical form.
Keywords: Auxiliary Hole, Cutout Plate, Finite Element Method, Stress Mitigation, Stress Analysis.
Science Publishing Corporation
2014-02-16 12:06:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/2366
International Journal of Scientific World; Vol. 2 No. 1 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/2513
2014-11-13T03:20:56Z
IJSW:ART
nmb a2200000Iu 4500
"140528 2014 eng "
2307-9037
10.14419/ijsw.v2i1.2513
doi
dc
On Bayesian estimation from two parameter Bathtub-Shaped lifetime distribution based on progressive first-failure-censored sampling
Javadkhani, Nooshin
Azhdari, Parvin
Assiatant professor at Islamic Azad University
Azimi, Reza
This paper presents different methods of Bayesian estimation like empirical Baysian estimation, Expectation of Bayesian estimation to estimate parameter and reliability function of two parameter bathtub-shaped lifetime distribution based on progressively firrst-failure-censored samples under minimum expected and LINEX loss functions. Comparisons among estimators are investigated through simulation study.
Keywords: Progressive rst-failure-censoring scheme, Empirical Bayesian Estimation, E-Bayesian Estimation, Bathtub-Shaped lifetime distribution .
Science Publishing Corporation
2014-02-16 12:06:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/2513
International Journal of Scientific World; Vol. 2 No. 1 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/2564
2014-11-13T03:20:58Z
IJSW:ART
nmb a2200000Iu 4500
"140629 2014 eng "
2307-9037
10.14419/ijsw.v2i2.2564
doi
dc
Bayesian estimation for the Kumaraswamy-inverse Rayleigh distribution based on progressive first failure censored samples
Azimi, Reza
?Azimi Sarikhanbaglu, Faramarz
This paper considers Bayesian estimation of parameter and reliability function of Kumaraswamy-inverse Rayleigh distribution under the different loss functions with progressively first failure censored samples. We used squared error , minimum expected, weighted and Linex loss functions for obtaining the Bayes estimators of parameter and reliability function. Finally, Comparisons are made between Bayes estimators under different loss functions using simulation study.
Keywords: Kumaraswamy-inverse Rayleigh distribution, Progressive first failure censoring, Bayesian estimation, reliability function.
Science Publishing Corporation
2014-06-29 05:58:24
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http://www.sciencepubco.com/index.php/IJSW/article/view/2564
International Journal of Scientific World; Vol. 2 No. 2 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/2967
2014-11-13T03:21:00Z
IJSW:ART
nmb a2200000Iu 4500
"140719 2014 eng "
2307-9037
10.14419/ijsw.v2i2.2967
doi
dc
Using MCMC methods in some application problems
Azhdari, Parvin
Assiatant professor at Islamic Azad University
Jafarpanahi, Nader
Beitollahi, Arman
Assistant professor at Islamic Azad University
MCMC methods are very important tools for estimating unknown parameters in Bayesian models. Especially in the case of high dimensions. Gaussian mixture model is one of the applications of estimating hyper parameters by MCMC method.
Keywords: Gibbs Sampling, Slice Sampling, Metropolis-Hastings Algorithm, Gaussian, Mixture Model.
Science Publishing Corporation
2014-06-29 05:58:24
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http://www.sciencepubco.com/index.php/IJSW/article/view/2967
International Journal of Scientific World; Vol. 2 No. 2 (2014)
eng
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oai:ojs.pkp.sfu.ca:article/3169
2014-11-13T03:21:02Z
IJSW:ART
nmb a2200000Iu 4500
"141012 2014 eng "
2307-9037
10.14419/ijsw.v2i2.3169
doi
dc
Solid waste management plan of pharmacy faculty in Karachi university
Usmani, Mursaleen
Institute of environmental studies, university of karachi
Wahab, Abdul
Sultana, Hafsa
Solid waste is considered as a biggest pollution problem in Pakistan. Improper management of solid waste creates many problems in Pakistan like health problems by causing different disease; create unpleasant smell, land pollution and also effect the beauty of the country. The country spends lot of income for the management of solid waste. The aim of this research is to identify that solid waste is consider as an economic burden or an economic assets. For this research work, we choose the pharmacy faculty found in university of Karachi, Pakistan. We collect different type of data related with solid waste from the members of the faculty and the result of the project shows that our little effort can make lower this burden and we can convert this economic burden into economic assets.
Keywords: Segregation, Bring System, Composting, Questionnaires, Dumping Site.
Science Publishing Corporation
2014-06-29 05:58:24
application/pdf
http://www.sciencepubco.com/index.php/IJSW/article/view/3169
International Journal of Scientific World; Vol. 2 No. 2 (2014)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/3291
2014-11-13T03:21:03Z
IJSW:ART
nmb a2200000Iu 4500
"140905 2014 eng "
2307-9037
10.14419/ijsw.v2i2.3291
doi
dc
The effect of using flashcards on ESL (English as a Second Language) students’ ability to learn vocabulary
Mojarradi, Saeed
Department of Foreign Language and Literature, Science and Research, Islamic Azad University, Ardabil, Iran
An increased vocabulary and good memory of such vocabulary could help students boost their knowledge of English and better manage conversation and writing skills. This research aims to evaluate two methods of learning using the technique of flashcards. Flashcards can either be bought, already prepared in bookstores, or students can make their own flashcards. Each of these aforementioned methods of acquiring flashcards has its own structure. In the latter technique, whereby prepared flashcards are used by students, there can be various effects on students’ ability for learning vocabulary. This study was done to test pre-university students attending high school. Students were asked to answer pretest and post test examination questions. Finally the study showed us producing handmade flashcards is infact time-consuming task.
Keywords: Flash cards, Vocabulary, Word.
Science Publishing Corporation
2014-06-29 05:58:24
application/pdf
application/pdf
http://www.sciencepubco.com/index.php/IJSW/article/view/3291
International Journal of Scientific World; Vol. 2 No. 2 (2014)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/3432
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150106 2015 eng "
2307-9037
10.14419/ijsw.v3i1.3432
doi
dc
Role of quinolones and quinoxaline derivatives in the advancement of treatment of tuberculosis
Asif, Mohammad
GRD(PG)IMT, RAJPUR, DEHRADUN
The need of new chemotherapeutic drugs to improve tuberculosis control and treatment particularly against multidrug-resistant (MDR) and extensively drug resistant (XDR) strains of Mycobacterium. The atitubercular drugs are used in current chemotherapy have different chemical moieties. In this review, we provide an overview of the quinolone drugs as an antitubercular drug. Generally quinolone drugs are mainly used against many gram-positive and gram-negative bacterial infections including resistance strains also. Various quinolones are being used to control and treatment of tubercular infections including MDR, XDR and atypical Mycobacterium strains. Fluoroquinolones are an important quinolones, especially for strains that are resistant to first-line agents.
Science Publishing Corporation
2014-12-21 14:23:57
application/pdf
http://www.sciencepubco.com/index.php/IJSW/article/view/3432
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/3468
2014-11-13T03:21:05Z
IJSW:ART
nmb a2200000Iu 4500
"140926 2014 eng "
2307-9037
10.14419/ijsw.v2i2.3468
doi
dc
A nonlinear physics model based on extended synergetics for the flow of infant actions during infant-mother face-to-face communications
Frank, Till
University of Connecticut, USA
The temporal ordering or flow of infant actions in the context of infant-mother face-to-face communications is discussed from a nonlinear physics perspective. The actions are considered as spatio-temporal patterns that emerge due to self-organization. The presence of a particular action is described in terms of a finite amplitude of the respective pattern. In line with benchmark models from synergetic sand population dynamics, nonlinear amplitude equations that determine the evolution of the infant actions are defined. The model is extended to take self-inhibition and forgetting into account. More precisely, it is shown that the flow of infant actions during infant-mother communications can be explained by assuming that the infant behavior inhibits itself such that after a certain period of time the performed behavior becomes unstable and a transition towards a new behavior occurs. The proposed model is applied to literature data about
Three minute periods of infant-mother face-to-face communications. Since the model parameters determine the characteristic properties of the flow of infant actions, the conclusion is drawn that changes of the flow characteristics observed on the behavioral level during infant development correspond to changes of parameters on the neurobiological level that happen on the relative slow time scale of infant maturation
Keywords: Use about five key words or phrases in alphabetical order, separated by commas.
Science Publishing Corporation
2014-06-29 05:58:24
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http://www.sciencepubco.com/index.php/IJSW/article/view/3468
International Journal of Scientific World; Vol. 2 No. 2 (2014)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/3636
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150612 2015 eng "
2307-9037
10.14419/ijsw.v3i2.3636
doi
dc
Efficacy analysis of the length of entrance on the diffraction of waves behind two breakwaters
Ghadimi, Parviz
Amirkabir University of Technology, Iran
Heyvedi, Zahra
Amirkabir University of Technology, Iran
Feizi Chekab, Mohammad A.
Amirkabir University of Technology, Iran
Any harbor should be protected from incoming waves. However, these waves are always diffracted at the entrance of the harbor and a fraction of the waves enters the harbor area. In the present paper, by the use of Boussinesq equations solved by Mike21 numerical software, a parametric study on the length of entrance of a simple harbor has been conducted and the diffraction of waves after passing the harbor entrance has been analyzed. As a result, the effects of the length of the entrance have been investigated on the safe zone behind the breakwaters of the harbor. To this end, a parameter called angle of safety is defined as a representative of the safe zone. Finally, an equation is presented to describe the behavior of the safe zone with respect to the length of the entrance. It has been observed that the angle of safety has a minimum of 57.5 degrees which increases with respect to the length of entrance which consequently increases the safe area behind the breakwaters.
Science Publishing Corporation
2015-06-01 13:42:31
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http://www.sciencepubco.com/index.php/IJSW/article/view/3636
International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/3671
2014-11-13T03:21:07Z
IJSW:ART
nmb a2200000Iu 4500
"141103 2014 eng "
2307-9037
10.14419/ijsw.v2i2.3671
doi
dc
Giardiasis in cattle: clinical assessment of giardia lamblia in cattle at Basrah, Iraq
Al-Saad, Rasha
Veterinary medicine college\ Basrah universityMicrobiology departement\ Parasitology
Al-Emarah, Ghazi
Dean of Veterinary medicine college\ Basrah university
The aim of this study is for assessment cattle giardiasis clinically. It is first time study in type done in Iraq. It was conducted from September 2012 until May 2013 throughout it collected 1049 fecal samples from cattle of various ages and of both sexes, collected randomly from different areas of the northern Basrah. About 322 positive cases have been recorded in cattle and the infection rate was 30.6%. 241 cases out of 322 showed clinical signs while 81 infected cows did not show clinical signs which are asymptomatic. The clinical examination data showed variety of presentation among symptoms and signs. The percent of symptomatic type was higher than the percentage of asymptomatic giardiasis in cattle. The study reported symptoms such as diarrhea, foul smelling stool, and flatulence, loss of appetite, elevated temperature, constipation and emaciation in different proportions.
Keywords: Giardia, Diarrhea, Asymptomatic, Cattle.
Science Publishing Corporation
2014-06-29 05:58:24
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http://www.sciencepubco.com/index.php/IJSW/article/view/3671
International Journal of Scientific World; Vol. 2 No. 2 (2014)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/3703
2014-11-13T03:22:09Z
IJSW:ART
nmb a2200000Iu 4500
"141104 2014 eng "
2307-9037
10.14419/ijsw.v2i2.3703
doi
dc
Design of a genetic microstrip patch antenna with broadside radiation for GSM applications
Jayasinghe, Jeevani
Wayamba university of Sri Lanka
Uduwawala, Disala
University of Peradeniya
Anguera, Jaume
Universitat Ramon Llull
Designing multiband antennas with broadside radiation becomes of practical interest in the ever growing wireless communication. In this regard, design of a multiband microstrip patch antenna (MPA) for GSM850, GSM900, GSM1800 and GSM1900 applications using Genetic Algorithms (GA) combined with Finite Element Method (FEM) is proposed to optimize the patch geometry and the feed position. A substrate with dielectric constant 3.2 and height 0.76 mm is used to support the MPA. Patch dimensions are (100 mm × 122 mm) similar to that of the conventional rectangular patch for the lowest frequency band (GSM850). In addition, there is an air gap of 10 mm between the substrate and the ground plane. This MPA with a reflection coefficient less than -10 dB and broadside radiation at all four GSM bands can be useful for base station antennas.
Keywords: Genetic Algorithm Optimization; GSM; Microstrip Patch Antennas; Mobile Communication.
Science Publishing Corporation
2014-06-29 05:58:24
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http://www.sciencepubco.com/index.php/IJSW/article/view/3703
International Journal of Scientific World; Vol. 2 No. 2 (2014)
eng
Copyright (c)
oai:ojs.pkp.sfu.ca:article/3795
2015-06-01T12:48:54Z
IJSW:ART
nmb a2200000Iu 4500
"141221 2014 eng "
2307-9037
10.14419/ijsw.v3i1.3795
doi
dc
Use of microalgae for the removal of environmental pollutants
Usmani, Mursaleen
Institute of Environmental Studies, University of Karachi
Sultana, Hafsa
In this mini review it is to focus that how can pollutants be removed from the environment by utilizing microalgae which are deliberately increasing and causing hazardous effects to our environment. Microalgae are sunlight-driven cell factories that convert carbon dioxide to potential biofuels, foods, feeds and high-value bioactives. Various types of pollutants continuously causing damage to the environment and after a long-term observation it is found that there is a best option of using microalgae in different techniques for reducing environmental pollutants. Since, versatile species of microalgae has been a part in reduction and removal of environmental pollutants as we observed in different bioremmedial techniques such as in waste water treatment plants, heavy metal removal techniques, bio-degradation of azo-dyes, phenol and other organic aromatic compounds which are dangerous to the environment. It is reappraised that one of microalgae specie which is named as chlorella vulgaris is found to be very effective in removing of heavy metals, waste water treatment and also in biodegradation of azo-dyes. This article basically explained the usefulness of using microalgae for the remediation of pollutants.
Science Publishing Corporation
2014-12-21 14:23:57
application/pdf
application/vnd.openxmlformats-officedocument.wordprocessingml.document
http://www.sciencepubco.com/index.php/IJSW/article/view/3795
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2014 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/3973
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150103 2015 eng "
2307-9037
10.14419/ijsw.v3i1.3973
doi
dc
Vibration analysis of five layer composite plate at different boundary conditions
Patil, Devidas
P.G. Student, SSBT's College of Engineering & Technology, Jalgaon
Damle, P.G.
Associate Professorin Mechanical Engineering, SSBT's College of Engineering & Technology,Jalgaon
Shinde, Dinesh
Asistant Professor in Mechanical Engineering, SVKM's NMIMS, Shirpur
Generally plates are subjected to the load conditions which may change by fixing different edges of the plate,that cause deflections transverse to the plate.In this paper a Vibration Analysis of a five layer composite plate is presented at different boundary condition. Vibration is the most influencing parameter of life & performance of particular machine element or engineering structures, and invariably, damping is used to reduce that. Various types of damping mechanisms have been developed over time to control the undesired vibration of structures. A composite plate having five layers is modeled in ANSYS parametric Design Language (APDL) platform & Finite element procedure is followed. Then, a set of results are presented to show the applicability of the present problem to various types of boundary conditions under free vibration conditions. Subsequently the results are compared with isotropic plate.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/3973
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4022
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150120 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4022
doi
dc
Empirical study of elastic properties of BX (X = As, Sb) materials
Daoud, Salah
Laboratoire Matériaux et Systèmes Electroniques (LMSE), Université de Bordj Bou Arreridj, 34000, Algérie
The principal goal of this work is the prediction of elastic properties of Boron-Arsenide (BAs) and Boron- Antimonide (BSb) materials by means of some emperical formulas and with the help of two experimental physical quantities (the bond length and the bulk modulus which are taken from the literature for BAs material and the bond length only for BSb material). The homopolar and heteropolar energies, the bonding-antibonding energy gap, the covalency, the elastic constants, the Kleinman parameter, the Cauchy discrepancy in elastic constant, the Cauchy coefficient, the Born ratio, the cohesive energy and finally the Knoop microhardness are predicted and analyzed in comparison with the available theoretical data of the literature. Our obtained results are in general in agreement with other previous theoretical data.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4022
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4039
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150120 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4039
doi
dc
Sound velocities and thermal properties of BX (X=As, Sb) compounds
Daoud, Salah
Laboratoire Matériaux et Systèmes Electroniques (LMSE), Université de Bordj Bou Arreridj, 34000
The sound velocities and thermal properties of Boron-Arsenide (BAs) and Boron- Antimonide (BSb) materials have been predicted with the help of the empirical elastic constants which are taken from our previous work which is accepted to publication in International Journal of Scientific World. The longitudinal, transverse and average elastic wave velocities, the Debye temperature, the melting temperature, the thermal conductivity, the linear thermal expansion coefficient and finally the Grüneisen parameter are predicted and analyzed in comparison with the available theoretical data of the literature. Our obtained results are in general in very good agreement with the previous experimental and theoretical data of the literature.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4039
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4107
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150206 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4107
doi
dc
Optimization of C7/C8 splitter section of buali petrochemicals aromatic distillation unit with aspen plus software
Darabi, Mohsen
Department Of Chemical Engineering Azad University of Shahrood Branch
Mohammadiun, Hamid
assistant professor,department of mechanical engineering,shahrood branch,Islamic azad university,shahrood,iran
Mohammadiun, Mohammad
assistant professor,department of mechanical engineering,shahrood branch,Islamic azad university,shahrood,iran
In order to separating benzene and toluene (BT), in the aromatic distillation unit of BuAli petrochemical are used of a distillation column containing 55 trays. For condensing steam in the upper part of air cooler and down, a natural gas furnace,which the fuel is sharply 1 million cubic foot (MMscfd) is applied.It was equipped with two ultra-high energy consumption so that energy costs has been estimated 93384 $in the year. in this study,According to the need of reduce energy consumption in consumer industries,especially oil, gas and petrochemical,we decided to investigate the energy recovery for aromatic distillation unit of BuAli petrochemical and with using of specialized software AspenPlus we provided a method for this purpose.In this regard,According to information taken from BuAli complex,several simulations were performed, and finally,the least investments expensive model with reducing energy consumption has been selected.The results of the selected model can be cited to remove completely power consumption of the air conditioner,45% reduction in fuel consumption in furnaces and heat exchangers,and ultimately58% reduction in the production of pollutant emissions that play important role in damaging the environment.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4107
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4132
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150209 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4132
doi
dc
On the behavior of several fitness functions for genetically optimized microstrip antennas
Jayasinghe, Jeevani
Wayamba university of Sri Lanka
Anguera, Jaume
UniUniversitat Ramon LLull
Uduwawala, Disala
University of Peradeniya
Genetic algorithm (GA) is a popular optimization technique used in the design of performance improved microstrip patch antennas (MPAs). The fitness function plays a vital role in the successful application of GA in MPAs. This paper investigates the performance of several fitness functions for achieving bandwidth improved MPAs.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4132
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4133
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150218 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4133
doi
dc
Bandwidth and gain enhancement of RMPA using ‘c’ shaped metamaterial at THz
Dawar, Parul
GTBIT
De, Asok
NIT Patna
This paper elucidates antenna parameter optimization using C shaped metamaterial embedded in antenna substrate at high frequency (THz). Ansoft HFSS version 13 has been used to design and analyse the RMPA (Rectangular Microstrip Patch Antenna ) with design frequency 2.75 THz and operating range of 2.15 THz to 3.35 THz having FR4 (εr = 4.4) as substrate material . Nicolson Ross Wier (NRW) method has been used to retrieve the material parameters from transmission and reflection coefficient. . Results were compared with MATLAB programming based on CAD formulas using equivalent circuit analysis of patch antenna. Finally, antenna parameters such as gain, bandwidth, and radiation pattern are investigated and presented in tables and response-graphs. The unique shape proposed in this paper, gives remarkable enhancement in bandwidth and antenna gain.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4133
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4138
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150310 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4138
doi
dc
Optimal control strategies in square root dynamics of smoking model
Zeb, Anwar
Department of Mathematics COMSATS University Abbottabad, Pakistan
Bibi, Fiza
Zaman, Gul
In a recent paper [Anwar Zeb, Gul Zaman, Shaher Momani, Square-root Dynamics of a Giving Up Smoking Model, Appl. Math. Model., 37 (2013) 5326-5334], the authors presented a new model of giving up smoking model. In this paper, we introduce three control variables in the form of education campaign, anti-smoking gum, and anti-nicotive drugs/medicine for the eradication of smoking in a community. Using the optimal control theory, the optimal levels of the three controls are characterized, and then the existence and uniqueness for the optimal control pair are established. In order to do this, we minimize the number of potential and occasional smokers and maximize the number of quit smokers. We use Pontryagin's maximum principle to characterize the optimal levels of the three controls. The resulting optimality system is solved numerically by Matlab.
Science Publishing Corporation
2014-12-21 14:23:57
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text/x-tex
http://www.sciencepubco.com/index.php/IJSW/article/view/4138
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4218
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150222 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4218
doi
dc
Mechanical properties of BBi compound under pressure
Daoud, Salah
In several research activities, the ab-initio calculations have become a vital tool for many research scientists (especially the physicists and the chemists). Pseudopotential plane wave method based on density functional perturbation theory within the Teter and Pade exchange-correlation functional form of the local density approximation is applied to study the anisotropy and pressure dependency of the mechanical properties of Boron-bismuth compound. The independent elastic compliance constants, the mechanical behavior, the phase transition, the volume collapse, the Young’s modulus and the Poisson’s ratio for directions within the important crystallographic planes under pressure are studied. The Debye temperature and the melting point are also predicted.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4218
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4321
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150309 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4321
doi
dc
Domains of attraction of walking and running attractors are context dependent: illustration for locomotion on tilted floors
Frank, Till
University of Connecticut, USA
There is a general consensus that gaits of humans and animals can be considered as spatio-temporal patterns emerging via self-organization. In line with synergetics, a theory of pattern formation and self-organization founded by Haken, an amplitude equation model for human run-walk gait transitions is presented. The model allows for a definition of two distinct attractors representing walking and running. In particular, the size of the two attractors in the space of locomotion speed can be determined as a function of the model parameters. Furthermore, the model parameters can be estimated based on data from walking experiments on treadmills. The approach is illustrated for data reported in the literature on walking experiments involving tilted floors. It is shown that attractor size depends on the floor inclination, which suggests that in general the domains of attraction of walking and running attractors are context dependent. In particular, they depend on floor inclination. In other words, a pattern formation model is presented that describes how sensory feedback about environmental conditions may impact gait control.
Science Publishing Corporation
2014-12-21 14:23:57
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International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4326
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150308 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4326
doi
dc
The comparison of performance of bidboland gas refinery unit based on the current designing and the new designing
Darabi, Mohsen
Department Of Chemical Engineering Azad University of Shahrood Branch
Mohammadiun, Mohammad
Department of Mechanical Engineering,Shahrood Branch
Mohammadiun, Hamid
Department of Mechanical Engineering,Shahrood Branch
Mortazavi, Saeed
Department Of Chemical Engineering Azad University of Shahrood Branch
One of the problems of Bidboland Gas Refinery especially in the cold seasons is the low temperature of the sour gas entering to Gas Refinement Unit that .This problem has a direct influence on output reduction of Amin-Amin Exchanger leading to an increase in gas fuel consumption in the Reboiler of Amin Recovery Tower because Amin-Amin exchanger is not able ,in the current condition ,to warm up Rich DEA solution to optimum temperature based on design of the manufacturer company .In order to solve this problem, the Amin-Amin exchanger was redesign by use of Aspen Hysys specialized software and it was used in the process by use of the Aspen Hysys software .Based on the obtained results, in case of using the new exchanger ,the Rich DEA solution temperature will increase from 33°C to 98°C that this increase in temperature causes a 33.2% reduction in gas consumption in the Reboiler. On the other hand ,as a result of improvement in the heat exchanging between Lean and Rich solutions ,temperature of the saturated Amin solution reduces to 57°C which, consequently there is no need to use air cooler to cool running Amin. These equipments are totally omitted from the process, and its operating costs will are returned to Bidboland Gas Refinery .Finally, it was revealed that using the new heat exchanger causes a capital-return to 114864 $ annually as a result of reducing energy consumption in Reboiler and air cooler.
Science Publishing Corporation
2014-12-21 14:23:57
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International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4329
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150313 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4329
doi
dc
On the estimation of stress strength reliability parameter of inverted exponential distribution
Singh, Sanjay Kumar
Singh, Umesh
Yadav, Abhimanyu
Banaras Hindu University
Viswkarma, Pradeep Kumar
This paper aims to estimate the stress-strength reliability parameter R = P(Y < X), when X and Y are independent inverted exponential random variable. We have also discussed some fundamental properties of the considered distribution. The maximum likelihood estimator (MLE) of R and its asymptotic distribution are obtained. The Bayesian estimation of the reliability parameter has been also discussed under the assumption of independent gamma prior. Numerical integration technique is used for Bayesian computation. The proposed estimators are compared in terms of their mean squared errors through the simulation study. Two real data sets representing survival of head and neck cancer patients are fitted using the inverted exponential distribution and used to estimate the stress-strength parameters and reliability.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4329
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4356
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150313 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4356
doi
dc
Use of Büchi automata and randomness for the description of biological processes
Giannakis, Konstantinos
Department of Informatics, Ionian University, Corfu, Greece
Andronikos, Theodore
Department of Informatics, Ionian University, Corfu, Greece
The main topic of this study is the modelling and verification of biological systems using ω-automata. This work focuses on the protein folding problem and the infinite behaviour it features in many cases. Specifically, stochastic computational models with infinite input are used in this paper’s approach and indicative aspects of a biological problem are presented using both ω-automata and probabilistic Büchi automata (PBAs), making a novel attempt to establish their use in reasoning about biological processes. Necessary preliminary definitions and background towards this direction are provided. Finally, the pros and cons of each model are shown through examples. Overall, this work contributes by combining for the very first time PBAs with real biological mechanisms, with indicative examples, both with PBAs and NBAs (non-deterministic Büchi automata).
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4356
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4366
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150920 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4366
doi
dc
Theoretical design of innovative cold formed steel beam sections
Dar, M. Adil
KURUKSHETRA UNIVERSITY
Ashish, Deepankar K.
KURUKSHETRA UNIVERSITY
Dar, A. R.
NIT
In today’s world, the construction industry both structural and non-structural elements are fabricated from thin gauges of steel sheets. These thin walled sections are being used as columns, beams, joists, studs, floor decking, built-up sections and other components for lightly loaded structures. Unlike hot rolled sections, the design of Cold-Formed Steel (CFS) section for beam is predominantly controlled by various buckling modes of failure, thereby drastically reducing their load carrying capacity. Hence there is an urgent need in the CFS industry to look beyond the conventional CFS beam sections and investigate newly proposed innovative CFS beam sections, which seem to prove structurally much more efficient. Prior to any experimental investigation of innovative beam sections, there is a need to carry out theoretical design using some of the most appropriate available methods applicable to the case under consideration. This paper focuses on such theoretical designs for various innovative sections using available analytical design tools together with appropriate codal guidelines.
Science Publishing Corporation
2015-06-01 13:42:31
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http://www.sciencepubco.com/index.php/IJSW/article/view/4366
International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4400
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150330 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4400
doi
dc
Streamrate stagnation-point flow of a nanofluid on a stationary cylinder
Amerian, Vahid
Department of mechanical engineering, Shahrood University, Shahrood, Iran
Mohammadiun, Hamid
Department of mechanical engineering, Sharood branch, Islamic Azad University, Shahrood, Iran
Mohammadiun, Mohammad
Department of mechanical engineering, Sharood branch, Islamic Azad University, Shahrood, Iran
Khazaee, Iman
Faculty of Mechanical and Energy Engineering, ShahidBeheshti University, A.C., Tehran, Iran
The steady-state, viscous flow of Nanofluid in the vicinity of an axisymmetric stagnation point of a stationary cylinder is investigated. The impinging free-stream is steady and with a constant strain rate . Exact solution of the Navier–Stokes equations is derived in this problem. A reduction of these equations is obtained by use of appropriate transformations introduced in this research. The general self-similar solution is obtained when the wall temperature of the cylinder is constant. All the solutions above are presented for Reynolds numbers ranging from 0.1 to 1000 and selected values of particle. For all Reynolds numbers, as the particle fraction increases, the depth of diffusion of the fluid velocity field in radial direction, the depth of the diffusion of the fluid velocity field in -direction, shear-stresses and pressure function decreases.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4400
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4431
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150405 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4431
doi
dc
The simulation and design air conditioner in unit 103 of south pars with use advance exergy
Darabi, Mohsen
Department Of Chemical Engineering Azad University of Shahrood Branch
Mohammadiun, Mohammad
Department of Mechanical Engineering,Shahrood Branch
Mohammadiun, Hamid
Department of Mechanical Engineering,Shahrood Branch
Mortazavi, Saeed
Department of chemical Engineering,Shahrood Branch
Maddah, Heydar
Department of chemical Engineering,Shahrood Branch
In this paper, energy recycling for distillation tower condenser was done by use of heat integration method. At first, we calculated the amount of condensation energy (QAir Cooler), in air cooler, and then we calculated energy consumption in this equipment based on annual balance (5460 GJ per year). Then, based on heat integration (energy unification), two conditions were proposed to use the current energies in the process for supplying condensation energy (QAir Cooler): first, its must be lesser than condensing temperature of condenser (55 ° C) (the major condition). Second, it must have much more flow rate than the overhead flow. According to two above conditions, the food flow as chosen as the integration factor and its amount of energy (EStream) is calculated from the Enthalpy equation as 9863964 kj/h. As EFeed >>> QAir Cooler and food flow temperature to condense an overhead vapor is satisfying. The food flow can be used to condense the saturated vapor to 55 ° C. in case of using food energy and using heat exchanger instead of air cooler; 5460 GJ energy will be saved annually. By using heat exchanger and omitting air cooler, the unit103 operating costs will be reduced considerably. Economically, conducting such a project will demand investing costs. However, obtainable incomes from doing this project (electricity consumption recycling and cost's reduction) reveal this fact that capital return rate and the project benefits for unit103 of South Pars phases2&3 are beneficial.
Science Publishing Corporation
2014-12-21 14:23:57
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International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4495
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150426 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4495
doi
dc
The proposed model of pulse code modulation encoder for voice frequencies
Ahmed, Iftekhar Uddin
Lecturer (Adjunct), International Islamic University Chittagong
Masum, Abdul Kadar Muhammad
PhD Candidate, University of Malaya
Motakabber, S.M.A
4Asistant Professor, International Islamic University Malaysia
In this paper, we have developed a hardware-based model of pulse code modulation (PCM) system for voice frequencies. Firstly, we have constructed sample and hold circuit using triggered semiconductor switch (e.g., MOSFET), which is capable of sampling voice signals at 8 kHz according to Nyquist theory. Then an Analogue to Digital Converter (ADC) Integrated Circuit (IC) is introduced to quantize and to digitize of the output of the sample and hold as pulse amplitude modulation (PAM). The converted outputs are 8-bit digital parallel value per sample at a frequency of 8 kHz. Finally, a parallel to serial converter logic is constructed which remains the voice frequency at the accurate time without any delay. The principle feature of this PCM system is that during a final interval of time, it makes a waveform into 8 bit serial code word. An 8-bit shift register with decade counter and flip-flop based logic are providing to this wave-from one after another without any interruptions of the sequences.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4495
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4572
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150424 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4572
doi
dc
Nanofluid properties for forced convection heat transfer :a review
Darabi, Mohsen
Young Researchers and Elite Club, shahrood Branch, Islamic Azad University ,shahrood, Iran
Naeimi, Reza
process expert of Abadan oil refinery
Mohammadiun, Hamid
Department of Mechanical Engineering,Shahrood Branch
Mortazavi, Saeed
Department of chemical Engineering,Shahrood Branch
The thermal conductivity of nanofluids depends on various parameters, such as concentration, temperature, particle size, pH, shape, material, and possibly on the manufacturing process of the nanoparticles. Data on the viscosity of nanofluids, available in the literature, are very limited. Theoretical models for the determination of the thermal conductivity and viscosity of nanofluids have been pursued. Experiments with nanofluids indicate that they higher heat transfer coefficients than the base fluid. No significant increase in a pressure drop is reported with nanofluids, compared with values with the base fluid. However, the stability of nanofluids with regard to settlement/agglomeration, especially at higher concentrations, is still a problem for practical applications.
Science Publishing Corporation
2014-12-21 14:23:57
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International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4582
2015-05-07T05:34:48Z
IJSW:ART
nmb a2200000Iu 4500
"150503 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4582
doi
dc
Advanced exergy analysis of distillation tower and simulation and optimization by hysys
Darabi, Mohsen
Young Researchers and Elite Club, shahrood Branch, Islamic Azad University , shahrood , Iran
Mohammadiun, Hamid
Department of Mechanical Engineering,Shahrood Branch
Mohammadiun, Mohammad
Department of Mechanical Engineering,Shahrood Branch
Exergy rate profiles, exergetic efficiency and irreversibility were used to examine the driving forces in multicomponent distillation system with the view to identifying feasible and efficient operating parameters. The mixture comprised of 5% propane, 15% iso butane, 25% n-butane, 20% iso pentane and 35% n-pentane. Operating variables were feed temperature (-30oC and -80oC), pressure (800KPa and 1200KPa), and reflux-ratio (2 and 6). Sensitivity analysis was carried out to examine the effect of varying operating parameters on the systems. Stage-by-stage system exergy analysis was estimated. Column profiles of a base case -30oC, -80oC, -30oC-reflus ratio 6,80oC -80oC reflux ratio 6 and base case reflux ratio 6 did not cross thus are thermodynamically feasible. Base case -30oC-reflux ratio 2, -80oC-reflux ratio 2, and base case-reflux ratio 2 were crossed and constricted and are infeasible. Base case results gave efficiency of 81.7% at depropanizer and 65.2% at debutanizer. Base cases sensitivity results with -30oC, -80oC and reflux ratio 6, efficiency range 57.40 – 70% and 65.20% - 54.90% for depropanizer and debutanizer respectively. Spitted cases gave 81.7% and 62.20% with more scatter profiles. Splitted feed base case -30oC design gave the lowest overall system exergy loss rate of 1.12E+6 and efficiency of 95.70%.
Science Publishing Corporation
2014-12-21 14:23:57
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International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4583
2015-05-08T09:27:30Z
IJSW:ART
nmb a2200000Iu 4500
"150507 2015 eng "
2307-9037
10.14419/ijsw.v3i1.4583
doi
dc
Simulation and optimization integrated gasification combined cycle by used aspen hysys and aspen plus
Darabi, Mohsen
Young Researchers and Elite Club, shahrood Branch, Islamic Azad University , shahrood
Mohammadiun, Mohammad
Department of Mechanical Engineering,Shahrood Branch
Mohammadiun, Hamid
Department of Mechanical Engineering,Shahrood Branch
Mortazavi, Saeed
Department of chemical Engineering,Shahrood Branch
Montazeri, Mostafa
Department of chemical Engineering,Shahrood Branch
Electricity is an indispensable amenity in present society. Among all those energy resources, coal is readily available all over the world and has risen only moderately in price compared with other fuel sources. As a result, coal-fired power plant remains to be a fundamental element of the world's energy supply. IGCC, abbreviation of Integrated Gasification Combined Cycle, is one of the primary designs for the power-generation market from coal-gasification. This work presents a in the proposed process, diluted hydrogen is combusted in a gas turbine. Heat integration is central to the design. Thus far, the SGR process and the HGD unit are not commercially available. To establish a benchmark. Some thermodynamic inefficiencies were found to shift from the gas turbine to the steam cycle and redox system, while the net efficiency remained almost the same. A process simulation was undertaken, using Aspen Plus and the engineering equation solver (EES).The The model has been developed using Aspen Hysys® and Aspen Plus®. Parts of it have been developed in Matlab, which is mainly used for artificial neural network (ANN) training and parameters estimation. Predicted results of clean gas composition and generated power present a good agreement with industrial data. This study is aimed at obtaining a support tool for optimal solutions assessment of different gasification plant configurations, under different input data sets.
Science Publishing Corporation
2014-12-21 14:23:57
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http://www.sciencepubco.com/index.php/IJSW/article/view/4583
International Journal of Scientific World; Vol. 3 No. 1 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4688
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150601 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4688
doi
dc
Perception towards genetically modified crops of the local farmers in Magalang, Pampanga, Philippines: a basis for an intervention program on GM crops
Pangilinan, Christian
Pampanga State Agricultural University
Bagunu, Jacqueline
Pampanga State Agricultural University
This descriptive research was undertaken to unveil the perception of the local farmers in Magalang, Pampanga towards GM crops with the aid of a written survey instrument administered to respondents from February to March 2014.In general, it was observed that despite inadequate information regarding GM crops, their implication and impact on human health, environment and economy, and their ambivalent view about the improved nutritional quality and other health benefits of GM crops, the farmers in Magalang, Pampanga consider GM crops safe for human consumption and a solution for food security. The respondents are very positive with regards to the improved yield and low production cost that these GM crops can offer. This suggests that the local farmers are primarily concerned with the quantity of produce as well as profit of their farming activity, their business and livelihood, rather than the quality of the produce in terms of effect on human health and the environment. Lastly, the local farmers are willing to accept, to adopt and to patronize GM crops. Findings from this research can serve as a basis for an intervention program that the local government or other organizations can initiate to address local farmers’ perception regarding GM crops.
Science Publishing Corporation
2015-06-01 13:42:31
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http://www.sciencepubco.com/index.php/IJSW/article/view/4688
International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4719
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150619 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4719
doi
dc
Stress intensity factors for multiple cracks in thick-walled cylinder
G. Girase, Krunal
Patil, Navneet K.
Shinde, Dinesh
Kalita, Kanak
Dept. of Aerospace Engineering & Applied MechanicsIIEST Shibpur(Erstwhile Bengal engineering & Science University)Howrah, West Bengal, India 711103
The stress intensity factor (SIF) is the linear elastic fracture mechanics parameter that relates remote load, crack size and structural geometry. It predicts very accurately the stress state. In this work, cylinders with multiple cracks are considered. The following parameters are varied during the analysis of the cylinders: the number of cracks, (the variation in number of cracks ultimately led to a variation in the inter-crack spacing), the crack length to cylinder thickness ratio (a/t), the diameter ratio of the cylinders. Very good agreement between the finite element stresses and the theoretical stresses is seen.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4741
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150608 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4741
doi
dc
Antioxidant potential of some Sudanese medicinal plants used in traditional medicine
EL-Kamali, Hatil
Omdurman Islamic University, Faculty of Science and Technology, Botany Department
E. M. Hamed, Sana
In the present work methanolic and water extracts of 19 medicinal plants, commonly used in Sudanese folk medicines against gastrointestinal tract, infectious diseases were investigated for their antioxidant activity. Antioxidant assays were carried out by using different in vitro models such as DPPH (2, 2-diphenyl-1picrylhydrazyl) radical scavenging and Iron chelating activity. Methanolic and water extracts of Punica granatum showed the highest total antioxidant activity of 71±0.03 and 73±0.01 respectively. The antioxidant activities of water extracts were poor when compared to the methanol extract. The iron chelating power of methanol and aqueous extracts of Commiphora myrrha 58±0.01 and Azadirachta indica 57±0.20 respectively.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4793
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150619 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4793
doi
dc
Linear correlation between Debye temperature and lattice thermal conductivity in II-VI and III-V semiconductors
Daoud, Salah
A simple linear empirical relationship between high intrinsic lattice thermal conductivity K, and Debye temperature θa is suggested from data on high intrinsic lattice thermal conductivity K, and Debye temperature θa for some selected II-VI and III-V cubic zincblende type, and I-VII and II-VI rock-salt type binary semiconductors. A good linear correlation between Debye temperature and the high intrinsic lattice thermal conductivity was obtained. The minimum average percentage deviations in the present approach reveal that our simple model prove its identity and soundness compared to those of other author relations.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4860
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150627 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4860
doi
dc
Buddhism and quantum physics: Generality
Yupapin, Preecha
Asian Quantum Life Institute, Nontthaburi, Thailand
The generalized concept of Buddhism is presented in terms quantum physics, which can be used to practice and reach the noble human life, where the related Buddhism principles can be formulated by the quantum physics concept. This can lead to meet the well-known Buddhism practical states, where they are the contemplation and perception. Finally, the zero energy state (nirvana) can be achieved and realized, which is benefit to the un-limited brain performance condition and discussed.
Science Publishing Corporation
2015-06-01 13:42:31
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http://www.sciencepubco.com/index.php/IJSW/article/view/4860
International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4861
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150628 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4861
doi
dc
Contemplation and perception energy transition states
Yupapin, Preecha
Asian Quantum Life Institute, Nontthaburi, Thailand
In this paper, the concept of meditation and perception energy transition states is configured described by the spirit energy transitions. Being life has been jeopardized situation due to the chaotic society. The technique that can be used to release and recover such problems is the challenge and being proposed. There are two techniques that can lead to obtain the mind concentration, where they are meditation ad mind-body considerations that have been successfully used for years. The descriptions of meditation and perception are performed by the spirit energy transitions of eight and sixteen levels respectively. The transition states and energy levels are explained, which can be useful for practitioners and world society.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/4881
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150705 2015 eng "
2307-9037
10.14419/ijsw.v3i2.4881
doi
dc
Analytical and simulation results of micro-ring resonator system using two eyes imaging model
Tanaram, C.
Kasem Bundit University
Phatharacorn, P.
Kasetsart University
Chiangga, S.
Kasetsart University
Yupapin, P. P.
Kasetsart University
In this review article, the artificial vision model using the 3 cascaded conjugate mirrors system can be constructed, analyzed and simulated. A single 3D pixel (point) imaging construction is formed and obtained by using the conjugate mirror concept, where the large area of pixels can be potentially constructed and realized for large area application. This is a simulation work, where the software program is the finite difference time domain (FDTD) commercial program (Opti-wave). However, the used device parameters and materials can be fabricated and formed the artificial eyes for 3D artificial vision. Simulation result obtained has shown that the whispering gallery modes (WGMs) of radiation within the cascaded microring conjugate mirrors can be easily formed, and are coupled by the two nonlinear side rings, which can be potentially used for 3D imaging pixel construction applications by the two eyes construction model.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5028
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"151001 2015 eng "
2307-9037
10.14419/ijsw.v3i2.5028
doi
dc
Formulation and evaluation of lecithin organogel for treatment of arthritis
Jatav, Mahendra Prasad
SOPS RGPV BHOPAL
Ramteke, Suman
Background: Arthritis is a disease of the joint that involves inflammation of one or more joints. Topical administration of NSAIDs could deliver lornoxicam to the site of action in rheumatic diseases, which would reduce the gastrointestinal complications and side effects of the drug.
Methods: In this method, the oily phase was prepared by dispersing the specific amount (ratio; 40:60) of purified lecithin at room temperature in isopropyl myristate as dispersing and emulsifying agent. The aqueous phase of polypropylene was prepared by dispersing a weighed amount of polypropylene and glycerol in water. It was stored at 2-4 oC overnight for the effective dissolution. The aqueous phase was slowly added in oily phase with stirring at 400 rpm using a mechanical stirrer. The prepared organogel of lornoxicam were evaluated for its appearance, organoleptic characteristic, viscosity, gelation temperature, drug content and in vitro release study. In vivo evaluation for analgesic activity of formulation was carried out in terms of skin irritation study, hot plate method; writhing test and edema paw induce method.
Results: The drug content of organogel formulations was found in the range of 92.43±2.10-97.93±0.31% indicating uniform distribution of drug through the base and no interaction of drug with component of base. Posthoc Dunnet’s t-test by employing statistical software, GraphPad InStat 3. It’s shown differences between groups were considered significant at P < 0.05.
Conclusion: The transdermal organogel formulation of lornoxicam could provide significant anti-inflammatory and antirheumatic activity when applied topically and was observed to be functional for topical delivery of lornoxicam.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5111
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150905 2015 eng "
2307-9037
10.14419/ijsw.v3i2.5111
doi
dc
NARSKCA: Novel and robust symmetric key cryptography algorithm
Maram, Balajee
Asst.Prof., Dept. of CSE, GMRIT, POST:RAJAM, ANDHRA PRADESH, INDIA
Kumar, Y Ramesh
Asso.Prof, Dept of CSE
Rao, K Lakshmana
In this research paper, a novel and strong symmetric key cryptography algorithm is proposed. NARSKCA is based on several symmetric cryptographic algorithms. NARSKCA is very simple that uses character converting algorithm, Fibonacci Number Series, Lucas Number series and bitwise XOR. In NARSKCA, 32 files are shared-secret files plays a vital role in this Proposed Algorithm. The Sub-keys are generated from those 32 shared-secret files which are useful in different rounds of Encryption and Decryption Process. The most important feature is the calculation of the final key from the Sub-Keys for each Text-Block. Key Generation, encryption/decryption schemes of NARSKCA are fast and difficult to predict by Cryptanalysts.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5168
2015-11-16T11:06:18Z
IJSW:ART
nmb a2200000Iu 4500
"150905 2015 eng "
2307-9037
10.14419/ijsw.v3i2.5168
doi
dc
Investigating prevalence of pathogenic genes (ETA and TSST-1) in Staphylococcus aureus isolated from different wards of the hospitals by PCR method
Ramazanzadeh, Rashid
Cellular & Molecular Research Center and Microbiology Department, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj- Iran
Mohammadi Talvar, Hadi
Islamic Azad University, Science and Research Campus, Kurdistan branch, Sanandaj, Iran.
Mirzaii, Mahdi
Faculty of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
Hasheminasab, Seyed Sajjad
MSC of Parasitology, Faculty of Veterinary Medicine, University of Tehran, Tehran-Iran
Narenji, Hanar
Department of Microbiology, School of Medicine Science, Sanandaj, Iran.
Staphylococcus aureus is the most common pathogenic organisms in the hospitals and communities' infections. It is responsible for more than 80 percent of infectious diseases. The purpose of the present paper is to determine the incidence of Staphylococcus pathogenic genes isolated from different wards of hospitals by PCR method. This study included 61 Staphylococcus aureusisolates collected from different wards hospital, between 2011 and 2012 in University of Kurdistan (Toohhid and Besat hospitals). All isolates were previously identified as Staphylococcus aureusby a standard microbiological procedure. It isolates were incubated at 37ÄŠ for 24h on blood agar; single colonies were tested with tube and slide coagulase, catalase tests and growth on Manito salt agar. Following genomic DNA extraction, the presence of ETA, TSST-1 genes was analyzed by PCR.61 strains of Staphylococcus aureushave been isolated from different wards of the hospital. Frequency of tst gene was 81% and eta gene was 47%. Moreover, frequency of strains with both eta and tst genes was 40%. Results of the present paper indicate that the prevalence of Staphylococcusaureus results on prevalence of eta and tst genes, and this is a matter of concern.
Science Publishing Corporation
2015-06-01 13:42:31
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International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5275
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170416 2017 eng "
2307-9037
10.14419/ijsw.v5i1.5275
doi
dc
Predicting the mental health outcomes for Ebola first responders
Kirby, Adam
Purdue University
Hawkins, Merissa
Purdue University
David R., Black
Purdue University
J. Eric, Dietz
Purdue University
Purpose: The 2014 Ebola epidemic resulted in 26,683 cases and 11,022 deaths by May 6th, 2015. With first responders deploying from the United States to assist with the many challenges being faced in the field, they encountered a new set of traumatic events and situations that undoubtedly put them at risk for developing a mental disorder. Organizations must be prepared to provide mental health services for their employees and volunteers once they return.
Approach: The authors questioned the potential prevalence of PTSD, ASD, and depression among returning first responders and which therapy method would be the most effective in terms of an individual’s recovered or improved condition. This was done through the use of AnyLogic® 7.0. An agent-based method to model the stress levels a first responder may experience while dealing with Ebola was used, where all responders begin in the healthy state and can develop mental health disorders. The therapy options tested were Cognitive Processing Therapy, Prolonged Exposure, and Group Based Exposure Therapy.
Results: GBET for PTSD patients provided the most positive results in terms of condition recovery and improvement.
Conclusion: The results showed evidence that the type of therapy used can drastically affect the individual’s mental health outcome.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5314
2015-11-18T10:55:30Z
IJSW:ART
nmb a2200000Iu 4500
"151116 2015 eng "
2307-9037
10.14419/ijsw.v3i2.5314
doi
dc
Simplified expressions for calculating Debye temperature and melting point of II-VI and III-V semiconductors
Daoud, Salah
Simple empirical expressions between the Debye temperature and the bond length and also between the melting point and the bond length have been proposed. These formulas have been established for two groups of ANB8-N type binary semiconductors (groups: II-VI and III-V). A good correlation between the Debye temperature and the bond length and also between the melting point and the bond length is obtained. The minimum average percentage deviations in the present approach reveal that our model proves its identity and soundness compared to those of other author relations.
Science Publishing Corporation
2015-06-01 13:42:31
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http://www.sciencepubco.com/index.php/IJSW/article/view/5314
International Journal of Scientific World; Vol. 3 No. 2 (2015)
eng
Copyright (c) 2015 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5482
2016-05-06T06:13:52Z
IJSW:ART
nmb a2200000Iu 4500
"160226 2016 eng "
2307-9037
10.14419/ijsw.v4i1.5482
doi
dc
Effect of soil physico-chemical properties and plant type on bacterial diversity in semi- arid parts in central Sudan. Part ii. Sharq El-neel region, Khartoum state
Hassan, Hayat
OmdurmanIslamic University
EL-Kamali, Hatil
Omdurman Islamic University
Total viable counts of bacteria and bacterial diversity of the different soil samples from three different localities in Sharq EL-Neel region: Soba, AL-Aelafoon and Um Dawan Ban sub-regions were carried out. Soil physical and chemical characteristics (pH, EC,SP,solublecations: Na, K, Ca, Mg and anion P, organic carbon, total nitrogen and soil texture)in each studied sub-regions were measured. Qualitative analysis of microorganisms isolated from the studied soil samples reveal a total of thirteendifferent species of bacteria, of which two are unidentified. The ten species are classified under Bacillus genus. In Sharq EL-Neel regionsoil samples, total bacterial counts ranged from 9.5 × 104 cfu g-1 to 1×103 with a mean of 4×103 cfu g-1. The quantitative data on microbial population recorded in the present study was analysed using two diversity indices. High Shannon-Weiner diversity Index value for bacteria was obtained in AL-Aelfoon sub-region (1.79361), whereas high Simpson's index value was obtained in Um Dawan Ban sub-region (2.80).ActinomycesActinomyces spp. and Streptomyces spp. Where the most abundant microorganisms identified in the three sub-regions. Total bacterial count in Soba soil was positively correlated with pH (r= 0.0194) and sand (r= 0.3205); the total bacterial count in AL-Aelafoon soilwas positively correlated with EC (r= 0.1062), clay (r= 0.3816), silt (r= 0.1936), SP (r= 0.9302), K (r= 0.6252), Ca (r= 0.0015) and Mg (r= 0.1556), whereas the total bacterial count in Um Dawan Ban soil was positively correlated with clay (r= 0.2614), silt (r= 0.0216), SP (r= 0.565), K (r= 0.9645), P (r= 0.0197), Ca (r= 0.7377), Mg (r= 0.0267), N (r= 0.5215) and O.C (r= 0.3214). There were obvious differences in correlation coefficients among the selected criteria (46 % from the total number of correlation coefficients were positively correlated between bacterial counts and soil physico-chemical properties whereas 54% from the total number were positively correlated between plant type and bacterial counts).
Science Publishing Corporation
2016-02-26 04:55:29
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http://www.sciencepubco.com/index.php/IJSW/article/view/5482
International Journal of Scientific World; Vol. 4 No. 1 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5782
2016-05-06T06:13:52Z
IJSW:ART
nmb a2200000Iu 4500
"160226 2016 eng "
2307-9037
10.14419/ijsw.v4i1.5782
doi
dc
The Effect of chlorine on giardia cyst destruction isolated from different water sources in Maysan province
Al-Saad, Rasha
Lecturer, M Sc Parasitology, College of Pharmacy & College of Medicine, Maysan University, Maysan, Iraq
G. lamblia was a binucleate flagellated protozoan parasite that infected the upper intestinal tract of human and many animal species. Giardiasis was the most frequently diagnosed water borne disease and the major public health concern of water utilities in the developed and developing nations. Water is an important vehicle for the transmission of Giardia to human and mammals. For identified the effect of chlorine on Giardia cyst. To detect viability of cyst in different chlorine concentration. To determine the threshold level of chlorine concentration that caused cyst destruction. Measure the pH, chlorine concentration, filtration processes and examined by zinc sulfate centrifugal flotation technique using. 50% of samples contain Giardia cysts which are untreated water sources. Cyst viability differs in different chlorine concentration in different period of time extend from few hours to more than twenty days. The extreme chlorine concentration which caused cyst destruction in hours is 1.5 mg/L.
Science Publishing Corporation
2016-02-26 04:55:29
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http://www.sciencepubco.com/index.php/IJSW/article/view/5782
International Journal of Scientific World; Vol. 4 No. 1 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5845
2016-05-06T06:13:52Z
IJSW:ART
nmb a2200000Iu 4500
"160308 2016 eng "
2307-9037
10.14419/ijsw.v4i1.5845
doi
dc
Phytochemical analysis and proximate composition of Vernonia amygdalina
Usunobun, Usunomena
benson idahosa university, benin city, edo state, nigeria
Ngozi, Okolie
University of Benin
Background: Vernonia amygdalina is used to prepare dishes as well as a multi-purpose fodder tree with high biomass yield. This study was conducted to determine phytochemicals and proximate composition of Vernonia amygdalina leaves.
Methods: Evaluation of Vernonia amygdalina for phytochemicals and proximate composition were conducted using standard methods.
Results: Result showed that Vernonia amygdalina contain phytochemicals such as alkaloids, tannins, flavonoids, saponins, triterpenoids, steroids, cardiac glycosides, and reducing sugar. Results obtained on the proximate composition shows that Vernonia amygdalina in percentage (%) contain dry matter (90.68 ± 0.77), crude protein (22.81 ± 0.17), crude fiber (18.17±0.06), moisture (9.32 ± 0.67), ash (16.65 ± 0.09), crude fat (4.34 ± 0.04) and carbohydrate (38.03 ± 0.06).
Conclusion: The presence of phytochemicals like saponins, tannins, alkaloids and flavonoids explains the medicinal potentials of Vernonia amygdalina leaves in therapeutic uses. Also the leafy vegetables if consume in sufficient amount would contribute greatly to the nutritional requirement for human health and to the food security of Nigerian population.
Science Publishing Corporation
2016-02-26 04:55:29
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http://www.sciencepubco.com/index.php/IJSW/article/view/5845
International Journal of Scientific World; Vol. 4 No. 1 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/5903
2016-05-06T06:13:52Z
IJSW:ART
nmb a2200000Iu 4500
"160323 2016 eng "
2307-9037
10.14419/ijsw.v4i1.5903
doi
dc
Epidemiology of oxacillin-resistant staphylococcus aureus from cell phones of health-care workers in Ekiti State
Oluwole, Olusola
ekiti state university, ado-ekiti, nigeria
David, Oluwole
ekiti state university, ado-ekiti, nigeria
Owolabi, Ayomide
ekiti state university, ado-ekiti, nigeria
The use of mobile phones in the clinical environment by health-care workers has become widespread. A swab of mobile phones of health-care personnel of several hospitals in Ekiti State were examined to evaluate the prevalence of Oxacillin resistant Staphylococcus aureus (ORSA), the resistance of ORSA to other commonly used antibiotics as well as the multiple resistant patterns of the recovered isolates. A total of 106 samples were screened yielding 100 S. aureus isolates. The antibiotics sensitivity profile to nine commonly used antibiotics revealed high levels of resistance amongst the isolates ranging from 47% resistance to Chloramphenicol to 100% resistance exhibited to cloxacillin with 55% of the isolates showed resistance to oxacillin while all isolates exhibited multiple resistance. Also, all 55 ORSA exhibited 100% resistance to erythromycin and cloxacillin but interestingly were very sensitive (99.9%) to gentamycin. The high recovery rate of bacteria from mobile phones revealed that cell phones may have notable roles in the transmission of multidrug resistant nosocomial pathogens, increasing the risk of cross-contamination posed to immunosuppressed patients by the heath care workers attending to them.
Science Publishing Corporation
2016-02-26 04:55:29
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http://www.sciencepubco.com/index.php/IJSW/article/view/5903
International Journal of Scientific World; Vol. 4 No. 1 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6064
2016-05-06T06:13:52Z
IJSW:ART
nmb a2200000Iu 4500
"160503 2016 eng "
2307-9037
10.14419/ijsw.v4i1.6064
doi
dc
Phytochemical analysis, mineral composition and in vitro antioxidant activities of Celosia argentea leaves
Usunobun, Usunomena
benson idahosa university, benin city, edo state, nigeria
I. Samuel, Ekpemupolo
Background: Celosia argentea, a traditional vegetable in West and Central Africa is widely grown for ornamental purpose in the tropics and subtropics such as in Malaysia. The aim of this study is to determine phytochemicals, mineral composition and in vitro antioxidant activities of Celosia argentea leaves.
Methods: Qualitative phytochemical screening was carried out using standard procedures, Mineral analysis was carried out using Atomic Absorption Spectrophotometer (AAS) while antioxidant potential, free radical scavenging and reducing power scavenging activity were also carried out.
Results: The phytochemical composition revealed the presence of active ingredients such as glycosides, steroids, Saponins, Phenols, Flavonoids, and alkaloids while mineral analysis showed higher concentration in calcium (295mg/100g) and least concentration in chromium (0.85mg/100g). Other minerals and their concentrations includes magnesium (122.53mg/100g), potassium (128.33mg/100g), sodium (71.32mg/100g), iron (35.16mg/100g), zinc (5.42mg/100g), copper (2.18mg/100g), manganese (1.86mg/100g). Moreover, DPPH (2, 2-diphenyl-1-picrylhydrazyl) scavenging activity and reducing power activity of Celosia argentea increased as the concentration increases.
Conclusion: The present study reveals therapeutic potential of Celosia argentea leaves due to its bioactive compounds and minerals. Also, Celosia argentea possess powerful antioxidant activity and can therefore offer good protection against oxidative damage.
Science Publishing Corporation
2016-02-26 04:55:29
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http://www.sciencepubco.com/index.php/IJSW/article/view/6064
International Journal of Scientific World; Vol. 4 No. 1 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6066
2016-05-07T11:48:18Z
IJSW:ART
nmb a2200000Iu 4500
"160506 2016 eng "
2307-9037
10.14419/ijsw.v4i1.6066
doi
dc
Phytochemical screening, mineral composition and in vitro antioxidant activities of Pterocarpus mildbraedii leaves
Usunobun, Usunomena
benson idahosa university, benin city, edo state, nigeria
V. Chinwe, Igwe
Background: Pterocarpus mildbraedii is used in some Nigerian tribes in the treatment of headaches, pains, fever, convulsions, and respiratory disorders. This study was carried out to ascertain the phytochemicals, minerals and in vitro antioxidant activities of Pterocarpus mildbraedii leaves.
Methods: Qualitative phytochemical screening was carried out using standard procedures while Mineral analysis was carried out using Atomic Absorption Spectrophotometer (AAS). Also, antioxidant activities of Pterocarpus mildbraedii leaves were evaluated using reducing power ability and 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assays.
Results: Result on phytochemicals reveals the presence of flavonoids, saponins, alkaloids, tannins. Mineral analysis showed calcium (1283mg/kg) to be higher in concentration and manganese (4mg/kg) least in concentration (4mg/kg). Other analysed minerals include sodium (603mg/kg), potassium (1048mg/kg), magnesium (778mg/kg), zinc (25mg/kg), iron (146mg/kg), phosphates (1002mg/kg), etc. In vitro antioxidant activity results show that Pterocarpus mildbraedii possess potent but dose-dependent reducing power ability and free radical scavenging activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals.
Conclusion: The presence of phytochemicals such as flavonoids, saponins, alkaloids and tannins in Pterocarpus mildbraedii provides some biochemical basis for the ethno pharmacological uses of the plant. Also the information provided in this research study may help to spread the ethno botanical uses of Pterocarpus mildbraedii leaves to other parts of the World. The findings clearly demonstrate that Pterocarpus mildbraedii leaves have promising antioxidant property and needs further evaluation to exploit its therapeutic potential.
Science Publishing Corporation
2016-02-26 04:55:29
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http://www.sciencepubco.com/index.php/IJSW/article/view/6066
International Journal of Scientific World; Vol. 4 No. 1 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6154
2017-11-10T13:48:06Z
IJSW:ART
nmb a2200000Iu 4500
"170905 2017 eng "
2307-9037
10.14419/ijsw.v5i2.6154
doi
dc
Multistep organic synthesis leading to the formation of triazinothiazoloquinoxalines involving cost effective rea-gents
Yadav, Amar
lucknow university, india
Pandey, Vinod
lucknow university,india
A simple and efficient chemical method has been attempted for the synthesis of biologically and commercially important 2-aryl [-s-] triazino [1], [3], [5] thiazolo [6], [5-b] quinoxalin -4- thiones in moderate to excellent yields through cyclization reaction of o-phenylenediamino using readily available and fewer costly reagents viz. oxalic acid, PCl5thiourea, aromatic aldehydes and ammonium thiocyanate at an ambient temperature.
Science Publishing Corporation
2017-06-27 19:29:11
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International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6156
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"160627 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6156
doi
dc
Isolation of potential bacterial pathogens from the phylloplane of some selected medicinal plants
Yahaya ismail, Haruna
Department of Microbiology, University of Maiduguri, Nigeria
S. Bello, Hauwa
A. Allamin, Ibrahim
Danjuma, Elizabeth
Microorganisms are ubiquitous and their impact could be appreciated directly or indirectly. This study was aimed at determining the occurrence of pathogenic bacteria on the phylloplane of some medicinal plants commonly used to treat diseases by oral administration. Leaves samples were collected aseptically from Cassia fistula (Cassia) Mangifera indica (Mango) and Psidium guajavum (Guava) and their bacterial contents were assessed. Higher bacterial counts were observed in raw samples followed by those washed with sterile water. Samples washed with sterile warm water (blanched) were shown to have lower counts although without statistical significance (p ≤ 0.05). Guava leaves had higher counts (3.4×106 cfu/g) in the raw samples and cassia in blanched (6.4×105 cfu/g). However, mango leaves had the lowest (8.4×105 cfu/g and 2.0×105 cfu/g) in both the treatments respectively. Twenty bacterial species were isolated comprising Gram negative and Gram positive species. Bacterial identification revealed that Proteus mirabilis (35%), Proteus vulgaris (15%), Escherichia coli (15%), Klebsiella pneumoniae (5%), Morganella morganii (5%), Salmonella typhi (10%), Enterobacter sp. (5%), Staphylococcus aureus (5%) and Vibrio cholarae (5%) were the prevalent species. These organisms could be potential pathogens and proper washing with hot water may serve a better means of reducing the microbial contents and thus, it is recommended.
Science Publishing Corporation
2016-06-20 07:32:30
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International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6236
2016-11-28T10:56:00Z
IJSW:ART
nmb a2200000Iu 4500
"160620 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6236
doi
dc
Investigating the mediating role of organizational learning in the relationship between knowledge management aspects and organizational performance of sepah bank in Ardabil province
Sahebnazar, Daryoush
Islamic Azad University, Germi Branch,Germi, Iran
Dadfar, Ebrahim
The organization’s performance is considered as the qualitative and quantitative base of the development of any country. As long as the organizations do not conduct a survey to evaluate their knowledge assets, knowledge and organizational learning which are considered as the necessary parts of any organization, will not improve the performance and organizational development. Accordingly the aim of this study was to investigate the mediating role of organizational learning in the relationship between knowledge management aspects and organizational performance. The population of this study includes employees of Sepah Bank in Ardabil province branches, and sampling was conducted based on Morgan table which its number was equal to 169 and finally 164 questionnaires were analyzed. A questionnaire was used to collect the data and its reliability was investigated and has been approved using Cronbach’s alpha coefficient. The collected data were studied using modeling techniques, structural equation, and bootstrapping. All of the stages were calculated using Stata and Lisrel software. The results showed that knowledge management aspects (knowledge creation, knowledge storage, knowledge sharing and application of knowledge) play a mediating role in the relationship between knowledge management and organizational performance.
Science Publishing Corporation
2016-06-20 07:32:30
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International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6244
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"160620 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6244
doi
dc
An investigation of the effect of knowledge management aspects on organizational performance (case study: sepah bank in Ardebil province)
Sahebnazar, Daryoush
Islamic Azad University, Germi Branch,Germi, Iran
Dadfar, Ebrahim
Islamic Azad University, Germi Branch,Germi, Iran
The purpose of this study is to investigate knowledge management aspects on organizational performance of Sepah Bank in Ardebil Province. Research population includes all the employees, deputies and managers of Sepah Bank branches in Ardebil Province, which according to the table of Morgan, includes a total number of 169 subjects. Standard questionnaires were used for data collection. Research results showed that knowledge management aspects (knowledge storage, sharing and using) had a positive and significant effect on organizational performance variable and in general 80 percent of variance determines the organizational performance of Sepah Bank in Ardebil.
Science Publishing Corporation
2016-06-20 07:32:30
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International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6273
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"160627 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6273
doi
dc
Prevalence and antibiotic resistance of Pasteurella multocida isolated from chicken in Ado-Ekiti metropolis
Victor, Atere
Ekiti State University, Nigeria.
Mathew, Bamikole
Ekiti State University
Adekemi, Oluyege
Ekiti State University
Ayo, Ajurojo
Metrovet Veterinary Hospital
Odunayo, Alo
Metrovet Veterinary Hospital
Pasteurella multocida is a poultry bacterial pathogen causing fowl cholera in chicken. The prevalence and antibiotic susceptibility of P. multocida isolates from freshly dead chicken were determined. Ninety seven (97) freshly dead chicken from 23 different farms were analyzed for the presence of P. multocida. Swabs of the trachea and the liver of the necropsied chicken were activated on buffered peptone water and later cultured on blood agar and MacConkey agar. Pure culture of organisms were subjected to cultural and biochemical characterization. In vitro susceptibility of the pure isolates of P. multocida against 12 antimicrobial agents was determined using disk diffusion method. Twelve isolates of P. multocida were recovered from the chicken, with a prevalence of 12.4%. Nine of the isolates were recovered from the trachea and three from the liver. All the 12 isolates recovered from the birds were multi-resistant to the antibiotics used in this research. The antibiogram showed that all the isolates resisted ampicillin, amoxicillin/clavulinate, doxycycline and tylosine. Nitrofuratoin and gentamycin had the best antimicrobial activity with 25% and 50% resistance respectively. The resistance of other antibiotics are: Ofloxacin 75%, Ciprofloxacin 83.3%, Enrofloxacin 75%, Furasol 66.7%, Ceftazidime 91.7% and Cefuroxime 66.7%. This result showed that there is an emergence of multi- resistance in P. multocida, therefore it is important to carry out sensitivity test before administration of antibiotics in order to control fowl cholera.Â
Science Publishing Corporation
2016-06-20 07:32:30
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http://www.sciencepubco.com/index.php/IJSW/article/view/6273
International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6435
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"160826 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6435
doi
dc
Solid state fermentation and bioconversion of ripe and unripe pineapple peels using aspergillus Niger
Victor, Atere
Ekiti State University, Nigeria.
Titilayo, Femi-Ola
Ekiti State University
Daniel, Fapohunda
Ekiti State University
Pineapple peels are considered as waste in industrial and house hold setting. This research was aimed at converting these waste into useful product through bioconversion using Aspergillus niger. The proximate analysis, reducing sugar, pH, and titratable acidity of the both ripe and unripe peels of pine apple was carried out at the onset of the fermentation and at an interval of 24 hours for 96 hours. These analyses carried out on both ripe and the unripe peels of pineapple showed that, the crude protein increased from 3.96% to 9.84% in the ripe pineapple peel and increased from 3.21% to 6.41% in unripe peels. The crude fiber reduced from 14.09% to 3.23% in the ripe pineapple peels while the crude fiber of the unripe peels reduced from 10.15 to 4.62 at the end of the 96 hour fermentation. Increase in titratable acidity, reduction in reducing sugar and pH was recorded for both ripe and unripe peels during the fermentation period. The optimum bioconversion was recorded at 72 hours of fermentation where the pick in the crude protein was recorded. The fat content of the pineapple peel in both ripe and unripe pineapple peel remain fairly constant throughout the fermentation period. The ripe pineapple peel yielded more protein compared to the unripe pineapple peels. This is an indication that the ripe pineapple peels are more preferred for industrial application.
Science Publishing Corporation
2016-06-20 07:32:30
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International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6474
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"160829 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6474
doi
dc
Numerical behavior of a fractional order dynamical model of RNA silencing
El-Sayed, A.M.A.
Faculty of Engineering, MSA university, Giza, Egypt
Khalil, M.
Arafa, A.A.M.
Sayed, Amaal
A class of fractional-order differential models of RNA silencing with memory is presented in this paper. We also carry out a detailed analysis on the stability of equilibrium and we show that the model established in this paper possesses non-negative solutions. Numerical solutions are obtained using a predictor-corrector method to handle the fractional derivatives. The fractional derivatives are described in the Caputo sense. Numerical simulations are presented to illustrate the results. Also, the numerical simulations show that, modeling the phenomena of RNA silencing by fractional ordinary differential equations (FODE) has more advantages than classical integer-order modeling.
Science Publishing Corporation
2016-06-20 07:32:30
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http://www.sciencepubco.com/index.php/IJSW/article/view/6474
International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6520
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"160826 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6520
doi
dc
Exergy analysis of combined cycle of gas turbine and solid oxide fuel cell in different compression ratios
Fatahian, Esmaeel
PHD student,Department of Mechanical Engineering, Islamic Azad University of Nour,Mazandaran, Iran
Tonekaboni, Navid
PHD student,Department of Mechanical Engineering, Islamic Azad University of Nour,Mazandaran, Iran
Fatahian, Hossein
PHD student,Department of Mechanical Engineering, Islamic Azad University of Shahroud,Shahroud, Iran
Due to the growing trend of energy consumption in the world uses of methods and new energy production systems with high efficiency and low emissions have been prioritized. Today, with the development of different systems of energy production, different techniques such as the use of solar energy, wind energy, fuel cells, micro turbines and diesel generators in cogeneration have been considered, each of these methods has its own advantages and disadvantages. Having a reliable energy generation system, inexpensive and availability the use of fuel cells as a major candidate has been introduced. Fuel cells converting chemical energy to electrical energy that today are one as a new technology in energy production are considered. In this paper fuel cell compression ratios 4, 4.1 and 4.2 at an ambient temperature of 298 K have been simulated and ultimately optimum ratio 4.1 for modeling has been selected. All components of cycle, including the stack of fuel cell, combustion chamber, air compressors, recuperator and gas turbine was evaluated from the viewpoint of exergy and exergy destruction rate was calculated by EES software.
Science Publishing Corporation
2016-06-20 07:32:30
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International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6611
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"161218 2016 eng "
2307-9037
10.14419/ijsw.v5i1.6611
doi
dc
Factor analysis of socio-economic determinants of diseases
Khanum, Shakila
Department of Gynae & Obs, Quaid-E-Azam Medical College, Bahawalpur, Pakistan
Ansari, Bilal Anjum
Post Graduate Resident, Surgical Unit II, Bahawal Victoria Hospital, Bahawalpur, Pakistan
Hussain, Anila
Post Graduate Resident, Gynae & Obs. Unit I, Bahawal Victoria Hospital, Bahawalpur, Pakistan.
Qasim, Huma
PhD Scholar, Department of Statistics, The Islamia University of Bahawalpur, PakistanStatistical Assistant O/O Executive District Officer Health, Bahawalpur, Pakistan.
Our each and every part of life is persuaded by diversity of factors. Social and economic factors have a huge impact on person’s health. The purpose of this study is to investigate the social and economic determinants of diseases by a statistical technique called factor analysis using SPSS version 21. Sample of 1500 male and female patients from public and private hospitals of Southern Punjab, Pakistan is utilized using saturation sampling technique. Results illustrate that gender, age, area living, migration of ancestors, gender of house hold head, respondent’s and parent’s educational level, marital status, family size and monthly income are the major social and economic determinants of diseases. Age is the major factor that affects a person’s health. As age increase the chances of getting affected by disease also increase. So we can say that age and probability of getting ill are directly proportional to each other. Same is the case with income and education. Males are found to get ill more often, relatively compared to females.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6710
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170103 2017 eng "
2307-9037
10.14419/ijsw.v5i1.6710
doi
dc
Accumulation and toxicological risk assessment of Cd, As, Pb, Hg, and Cu from topsoils of school playgrounds at Obio-Akpor LGA Rivers State Nigeria
Chioma, Okereke
University of Port Harcourt
Emmanuel, Agomuo
Imo State University Owerri
Peter, Amadi
University of Port Harcourt
The adverse health effects associated with heavy metal pollution have become a subject of topical discussion. Using standard methods, this study evaluated the accumulation and toxicological risks of heavy metal deposition on top soils of school playgrounds in Obio-Akpor LGA. Results obtained from the top soils, sampled from 10 different schools showed that the concentration of heavy metals assessed, followed the trend; Hg<As<Cd<Pb<Cu. Marginal differences between the test and control samples were observed for the geoaccumulation index of the heavy metals except for copper. For the contamination factor, FCUA had the least results for cadmium (0.31) but highest in arsenic (0.016) while OPS, UDPS and RBPS recorded the highest contamination factor for lead, mercury, and copper respectively. The results for the pollution load index and degree of contamination of the test sites showed that the sites were unpolluted and had low contamination status, while the enrichment factors showed the deposition of only cadmium to be of a natural origin, and the rest of the heavy metals resulted from anthropogenic sources. The trend from the hazard quotient was Pb>Hg>Cu>Cd>As while the highest (0.0213) and least (0.0162) total hazard index value occurred at RBPS and MOM respectively. These values obtained for this study indicate that the school playground's soils are still within the recommended heavy metal content safe levels.
Science Publishing Corporation
2016-12-07 09:19:14
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http://www.sciencepubco.com/index.php/IJSW/article/view/6710
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6736
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"161103 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6736
doi
dc
A numerical study on slip flow in packed hyper-porous media inside micro-channels using differential transformation method
Saffari, Puyan
PHD student,Department of Mechanical Engineering, Islamic Azad University of Lahijan,Guilan, Iran
Fatahian, Esmaeel
PHD student,Department of Mechanical Engineering, Islamic Azad University of Nour,Mazandaran, Iran
Saffari, Peyman
PHD student,Department of Mechanical Engineering, Islamic Azad University of Nour,Mazandaran, Iran
Fatahian, Hossein
PHD student,Department of Mechanical Engineering, Islamic Azad University of Shahroud,Semnan, Iran
Velocity slip boundary condition in parallel-plate micro-channels filled with hyper-porous media is studied using differential transformation method (DTM) in order to find an analytical approximate solution. The results focus on slip flow regime (i.e., for Knudsen numbers in the range 10−3 < Kn < 10−1). The Darcy-Brinkman-Forchheimer model is applied to study the effect of nonlinear drag term further boundary-friction effects on hydrodynamic of gas flow in micro-channels. The results show that DTM results are in good agreement with numerical ones. Also, it is observed that decreasing the value of Darcy number flattens the velocity profile while this trend is opposite for decreasing the Forchheimer number. Also, increasing the value of  causes to increase the velocity slip at the wall.
Science Publishing Corporation
2016-06-20 07:32:30
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http://www.sciencepubco.com/index.php/IJSW/article/view/6736
International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6775
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170228 2017 eng "
2307-9037
10.14419/ijsw.v5i1.6775
doi
dc
Phytochemical, antimicrobial and nutritional properties of Morinda lucida benth and Nauclea latifolia leaf extracts
Enabulele, Stephen
Benson Idahosa University, Benin City
Amusa, Oluwatosin
Benson Idahosa University, Benin City
Uwadiae, Eseosa
Benson Idahosa University, Benin City
The leaves of two medicinal plants namely; Morinda lucida and Nauclea latifolia were investigated for their antibacterial, mineral and phytochemical properties. Results of the study showed that the aqueous and ethanolic extract of the two leaves had significant antibacterial activity against Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Listeria monocytogenes and Proteus mirabilis. The biologically active constituents present in the extracts were cardiac glycosides, tannins, saponin, coumarins, reducing sugar, terpenoids, alkaloids, steroids and flavonoids. The percentage yield extracts of the respective plants were Morinda lucida leaves 12.9% for ethanol and 9.0% for aqueous extracts while Nauclea latifolia had 12.1% for ethanol and 8.4% for aqueous extracts. Results of the antibacterial activity analysis revealed that the ethanolic extracts of the two medicinal plants at different concentrations were more active against the test organisms named above than the aqueous extracts. The MIC values for the ethanolic extracts ranged between 25.0 and 100.0 mg/ml while that of aqueous extract ranged between 50.0 and 100.0 mg/ml. The MBC values for ethanolic extract ranged between 50.0 and 100mg/ml while that of aqueous extracts also ranged between 50.0 and 100mg/ml. Analysis of the mineral content of the plant leaves shows that they were rich in potassium and calcium. This study confirms that the leaf extracts have some reasonable level of antimicrobial activity and appreciable amounts of mineral content which could be beneficial to human health. The findings from this work can be further exploited for isolation and characterization of novel Phytochemical compounds which could be used in the treatment of infectious diseases especially in light of the emergence of drug-resistant microorganisms and the need to produce new effective antimicrobial agents.
Science Publishing Corporation
2016-12-07 09:19:14
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http://www.sciencepubco.com/index.php/IJSW/article/view/6775
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6802
2016-11-28T10:56:01Z
IJSW:ART
nmb a2200000Iu 4500
"161115 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6802
doi
dc
Potential use of bacteriocin producing lactic acid bacterial strain isolated from milk products and its application as the fish feed
Khumbongmayum, Sumita Devi
Department of Biotechnology, Stella Maris College
Krishnaswamy, Veenagayathri
Department of Biotechnology, Stella Maris College
Bacteriocins are gene-encoded inhibitory proteins and those produced by Gram-positive Lactic acid bacteria. Some bacteriocins even display antagonistic activity towards Gram-positive food borne pathogens and spoilage organisms. This present study involves isolation of Bacteriocin-producing lactic acid bacteria from a variety of milk and milk products. The physico-chemical properties of the isolated bacteriocin producing bacterial strains were screened. The isolated bacteriocin bacterial strains were biochemically characterized and identified. Further, the isolated effective bacterial strain was used as a fish feed and its effect on their growth was evaluated. The evaluated data continue to demonstrate that the bacteriocin producing bacterial strains will have greater potential in the food products industry.
Science Publishing Corporation
2016-06-20 07:32:30
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http://www.sciencepubco.com/index.php/IJSW/article/view/6802
International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6846
2016-11-29T02:53:28Z
IJSW:ART
nmb a2200000Iu 4500
"161128 2016 eng "
2307-9037
10.14419/ijsw.v4i2.6846
doi
dc
Comparative study on microbial enhanced oil recovery using mannosylerithritol lipids and surfactin
José de Andrade, Cristiano
Polytechnic School of the University of São Paulo
Maria Pastore, Gláucia
Worldwide oil production has been declining. Microbial enhanced oil recovery is one of the most important tertiary recovery processes. The aim of this work was to evaluate the surface activity properties of surfactin and mannosylerithritol lipids-B. In our previous studies, surfactin and mannosylerithritol lipids were produced using cassava wastewater as substrate and then purified by ultrafiltration. Thus, this work extends our previous studies. Experiments of surface activity under extreme conditions (temperature, ionic strength and pH), oil displacement, removal of oil from sand and emulsification index were carried out. Central composite rotational design was performed under extreme conditions of temperature, pH and ionic strength. The results indicated that ionic strength significantly affected the surface activity of surfactin. On the other hand, ionic strength, but also temperature and pH significantly affected the tenso activity of mannosylerithritol lipids-B. Regarding oil displacement test, mannosylerithritol lipids-B showed higher clear zone than surfactin. Contrary, in the experiments of removal of crude oil from sand, minimal differences were observed between surfactin and mannosylerithritol lipids-B. Therefore, both surfactin and mannosylerithritol lipids-B showed good surface activity under extreme conditions. In addition, it seems that mannosylerithritol lipids-B is subtly better than surfactin for microbial enhanced oil recovery.
Science Publishing Corporation
2016-06-20 07:32:30
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http://www.sciencepubco.com/index.php/IJSW/article/view/6846
International Journal of Scientific World; Vol. 4 No. 2 (2016)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6900
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"161207 2016 eng "
2307-9037
10.14419/ijsw.v5i1.6900
doi
dc
Nutritional qualities assessment of locally processed spaghetti
Tukura, Bitrus
Nasarawa State University, Keffi
Daniel Gbubele, Joseph
Nasarawa State University
Mamman, Swaiba
Nasarawa State University
The quest for cheap and quality food is on the increase, especially during economy crises. Some nutritional properties of the raw and cooked local and industrial spaghetti were determined using standard methods. Concentrations of mineral elements were determined using atomic absorption spectrophotometer. Total ash (0.98±007 %), crude protein (14.28±0.15 %) and carbohydrate (77.95±0.11 %) levels in the raw industrial spaghetti were higher compared to the locally processed raw spaghetti. Carbohydrate and moisture levels for both processed spaghetti increased on cooking, while total ash and protein contents decreased. Crude fiber (0.009±0.00 %), carbohydrate (77.52±0.21 %) and moisture levels in the cooked local spaghetti were higher than in the cooked industrial spaghetti. Proximate contents of the local and industrial raw spaghetti were significantly (P ≤ 0.05) different. Concentrations of mineral elements in the raw locally processed spaghetti were lower than in the industrial spaghetti. Low levels of functional properties were recorded in the local spaghetti. Cooking decreased zinc content in the spaghetti, but significantly (P ≤ 0.05) increased the moisture content, crude fiber, carbohydrate and mineral contents. The spaghetti processed locally may serve as an alternative to the industrial spaghetti.
Science Publishing Corporation
2016-12-07 09:19:14
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http://www.sciencepubco.com/index.php/IJSW/article/view/6900
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6913
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"161207 2016 eng "
2307-9037
10.14419/ijsw.v5i1.6913
doi
dc
Mineral elements in borehole water from Northern and Western geo-political zones of Nasarawa state, Nigeria
Tukura, Bitrus Wokhe
Nasarawa State University, Keffi
G. Igube, Ibrahimn
Plateau State University, Bokkos
Mineral element contents in potable water at high concentrations may affect its quality. Concentrations of Na+, K+, Ca2+, and Mg2+ were determined in water from some boreholes in some parts of Nasarawa state, Nigeria. Levels of Na+ and K+ were determined using flame photometry, while Ca2+ and Mg2+ were quantified with the aid of atomic absorption spectrometry method. Concentrations of Ca2+ (10 – 42 mg/L) and Mg2+ (0.03 – 1.63 mg/L) were relatively low in the water samples. Nasarawa Toto (NTT) recorded the highest levels of mineral elements (0.26 – 10.61 mg/L). Mean concentrations of Na+ (7.59 – 11.08 mg/L) and Mg2+ (0.13 – 0.56 mg/L) were highest and lowest respectively. The levels of mineral elements according to studied areas varied in the order of NTT > NEG (Nasarawa Eggon) > KRV (Karu) > AKW (Akwanga) > KEF (Keffi) > GRU (Garaku). The ratios of Na/K for borehole water at Wayo (3.35) and Wamba Kurmi (3.55) at Wamba (WAM) areas were the closest to the optimal ratio of 3: 1 for the control of cardiovascular diseases, while Ca/Mg ratios were above the optimal ratio of 2:1. Total hardness levels (10 – 48 mgCaCO3/L) for water from the boreholes were < 60 mg/L, therefore, classified as being soft in nature. Mineral element concentrations in water from the boreholes were within the WHO acceptable limits for drinking water.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6929
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"161215 2016 eng "
2307-9037
10.14419/ijsw.v5i1.6929
doi
dc
Sound velocities and thermal properties of BeX (X=S, Se and Te) alkaline-earth chalcogenides
Daoud, Salah
Laboratory of Materials and Electronic Systems (LMSE), Faculty of Sciences and Technology, Mohamed Elbachir El Ibrahimi, Bordj Bou Arreridj University, Bordj Bou Arreridj (34000), Algeria
The sound velocities and some thermal properties of BeX (X=S, Se and Te) beryllium-chalcogenides large band gaps semiconductors have been estimated by employing some usual theoretical and emperical formulas. The lattice parameters and the elastic stiffness constants used here are taken from the literature. The longitudinal, transverse and average elastic wave velocities, the Debye temperature, the melting temperature, the thermal conductivity and the Grüneisen parameter are successfully predicted and analyzed in comparison with the available experimental and theoretical data. In general, our obtained results of these quantities agree well with the experimental and other theoretical data of the literature.
Science Publishing Corporation
2016-12-07 09:19:14
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http://www.sciencepubco.com/index.php/IJSW/article/view/6929
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6936
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"161218 2016 eng "
2307-9037
10.14419/ijsw.v5i1.6936
doi
dc
Isolation and characterization of free-living nitrogen fixing bacteria from alkaline soils
Smita, Madhu
Department of Microbial Biotechnology, Panjab University, Chandigarh, India
Goyal, Dinesh
Department of Biotechnology, Thapar University, Patiala
Free living nitrogen fixing bacteria were isolated from soil on Jensen agar plates and were characterized phylogenetically by 16S rDNA sequence analysis. All the isolates (VS1, VS2, VS3, VS4) were Gram –ve, rod shaped. Antibiotic test revealed VS2 to be resistant to ampicillin and VS4 was resistant to both ampicillin and kanamycin; otherwise all the isolates were sensitive to chloramphenicol. Nitrogen fixation was studied by the estimation of total nitrogen and available nitrogen fixed by cultures in the medium and compared with the control culture of Azotobacter CBD15 (Azo) procured from IARI. VS2 and VS3 fixed 12.02 ppm/ml and 10.635 ppm/ml as available nitrogen content and 14.44 ppm/ml and 18.73 ppm/ml as total nitrogen content. 16S rDNA studies revealed identification of the isolates- Pseudomonas sp. (VS2) and Paenibacillus sp. (VS3 and VS4). VS3 and VS4 showed 98% similarity with P. borealis. Soils from which these microbes isolated were also characterized to understand the environment of these microbes. The pH and chemical characterization (Organic Carbon, Phosphorus, Sulphur, heavy metal analysis of different metals e.g. Zn, Cu, Cr, Pb, Ni and water holding capacity) of the soils showed them to be slightly alkaline and clayey loamy. Cloning of VS2 was done successfully with plasmid pMMB277 isolated from E. coli 2842.The significance of this study lies in the isolation of those bacteria which are comparable in their nitrogen fixing potential to Azotobacter.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6965
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"161229 2016 eng "
2307-9037
10.14419/ijsw.v5i1.6965
doi
dc
Comparative study: bench-scale surfactin production from bacillus subtilis using analytical grade and concentrated glycerol from the biodiesel industry
José de Andrade, Cristiano
Polytechnic School of the University of São Paulo
Paula Resende Simiqueli, Ana
Department of Food Science, Faculty of Food Engineering, State University of Campinas
Maria de Andrade, Lidiane
Polytechnic School of the University of São Paulo
Maria Mendes, Anita
Polytechnic School of the University of São Paulo
Jauregi, Paula
University of Reading, Department of Food and Nutritional Science
Maria Pastore, Glaúcia
Department of Food Science, Faculty of Food Engineering, State University of Campinas
The market price of glycerol worldwide tends to decrease, since it is a by-product of biodiesel production. Thus its biotechnological use might lead to significant reduction in the cost of fermentations. The aim of this study was to compare the production of surfactin in peptone culture media supplemented with analytical grade glycerol (AGG) and concentrated glycerol from biodiesel production (CGBP). Differences were observed between the two processes including cell growth and dissolved oxygen consumption. Surfactin yield was 325.19 mg/L with AGG and 71.13 mg/L with CGBP, which proves the impact and importance of the purity of glycerol on the yield of surfactin. In addition, five surfactin homologous were identified by ESI-Q-TOFMS, which were composed by two amino acid sequences ELLMDLD and ELLLDLL. Therefore, as surfactin is a high value-added product, the use of glycerol with high purity is fundamental to achieve higher productivity.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/6969
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"161224 2016 eng "
2307-9037
10.14419/ijsw.v5i1.6969
doi
dc
Proximate composition, mineral content and amino acid profile of Irvingia gabonensis O’Rorke baill leaf
Ewere, Efosa
University of Uyo, Uyo, Akwa Ibom State, Nigeria.
Etim, Oboso
University of Uyo, Uyo, Akwa Ibom State, Nigeria.
Usunobun, Usunomena
Benson Idahosa University, Benin City, Edo State, Nigeria.
Several plants are utilized for medicinal and nutritional purposes. Irvingia gabonensis O’Rorke Baill leaf is used in herbal medicine for treatment of a number of ailments. This study was therefore carried out to investigate the proximate composition, antinutritional factors, mineral composition and amino acid profile of Irvingia gabonensis O’Rorke Baill leaf. The proximate and antinutritional factors analyses were done using standard procedures. The mineral analyses were done using flame photometry, titrimetic method, molybdo vanadate method and atomic absorption spectrophotometry and the amino acid profile was done with the aid of Applied Biosystems PTH amino acid analyzer. Results of proximate analyses were carbohydrates (75.15±1.29 %), protein (11.43±1.07 %), fat (1.99±0.74 %), fibre (4.89±0.61 %), ash (6.71±0.28 %), moisture (5.12±0.03 %) and caloric value (364.30±5.95 Kcal). Antinutrients (phytate, oxalate and cyanide) levels in the leaf were also very low. Results from mineral analyses obtained revealed that the leaf is also a very rich source of calcium, potassium, sodium, magnesium and so on. Compared with the World health organization (WHO) standards, results of the amino acid profile showed that the leaf is very rich in isoleucine, leucine, lysine, phenylalanine, threonine, valine and tyrosine which are nutritionally essential amino acids. Furthermore, extraction of the leaf using ethanol reduced the levels of these amino acids but not below the recommended WHO standard levels for most of the essential amino acids. Irvingia gabonensis O’Rorke Baill leaf is therefore a potential source of key nutrients.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2016 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7082
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170110 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7082
doi
dc
Asbestos base and asbestos free brake lining materials : comparative study
Shinde, Dinesh
SVKM's NMIMS SHirpur
Mistry, K.N.
GIDC Degree Engineering College Abrama, Navsari
Frictional brake lining materials are broadly made of asbestos as their constituent. But asbestos is dangerous for handling due to health hazardous. Asbestos has ample physical, mechanical and tribological properties. The material replacing it should have all these properties with no undermine. In this paper a study on asbestos base and asbestos free brake lining material is presented. Purpose behind this is combine the demerits of asbestos free and asbestos base materials with comparable properties. Some organic waste from farm like banana peel, palm karnel shell, were also tested for the replacement of asbestos and they found worth through comparison with each others.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7154
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170201 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7154
doi
dc
Molecular epidemiology of staphylococcus aureus isolated from the patients, personnel and hospital environments in Sanandaj (Iran)
Mohammadi Talvar, Hadi
Islamic Azad University, Science and Research Campus, Kurdistan branch, Sanandaj, Iran.
Ramazanzadeh, Rashid
Cellular & Molecular Research Center and Microbiology Department, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj- Iran
Mirzaii, Mehdi
Faculty of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
Hasheminasab, Seyed Sajjad
Veterinary parasitology, Damdaran Taavoni, Molavi st, Dehgolan, Sanandaj-Iran
The aim of this study was to determine the prevalence and characteristics of methicillin-resistant Staphylococcus aureus (MRSA) isolates from the patients, personnel and environments of a hospital in Sanandaj. During this study, 30 MRSA isolates were collected and analyzed with using spa typing method. Out of the 30 S. aureus isolates, 28 (93.33%) was methicillin resistant (MRSA),16spastypesp(t030,t711,t002,t1556,5t325,t267,t1358,t230,t2422,t969,t1814,t037,t300,t044,t180,andat5598)9wereefounduin differentewardsrof thethospital.aTheTmostofrequentewereet0300(17.27%),%t7117(13.73%).%OUrOdataademonstratedtthaththetoverall, resistancescto erythromycin, igentamycin, iandaciprofloxacin, iwereemostofrequente (87.5,.81.25,2anda62.52respectively).y).
Science Publishing Corporation
2016-12-07 09:19:14
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http://www.sciencepubco.com/index.php/IJSW/article/view/7154
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7162
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170131 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7162
doi
dc
Distribution and conservation status of fishes reported from muntjibpur pond of Allahabad (U.P.)
Verma, Ashok Kumar
Government Post Graduate College Saidabad Allahabad (U.P.)
Muntjibpur pond was studied to find out the conservation status of the fishes naturally occurring in it. The survey was conducted from July 2014 to June 2015. During exploration, a total of 13 species of fishes belonging to 12 genera, 8 families and 5 orders were identified. As per latest version of IUCN Red List, out of 13 species of fishes identified, 1 species comes under UV (vulnerable), 1 under NT (near threatened), 8 under LC (least concern) and 3 species are NE (not evaluated) so far. No fish species identified here comes under EN (endangered) category.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7183
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170208 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7183
doi
dc
Distribution of polycyclic aromatic hydrocarbons in some selected tubers grown in farmlands in Alakahia and Eleme communities, Rivers, Nigeria
Joy, Okereke Chioma
Dept of Biochemistry,University of Port HarcourtNigeria
Okonkwo, Chinedu
Dept of Biochemistry,University of Port HarcourtNigeria
The present study investigated the level of polycyclic aromatic hydrocarbon (PAH) in three commonly consumed tubers grown in farmlands in two communities- Alakahia and Eleme, Rivers state, Nigeria. The total PAH concentrations in the tubers ranged from 2.94 ± 0.26 to 70.83 ± 1.56 -µg/kg. Pyrene was the predominant PAH in most of the tuber samples from Alakahia and Eleme communities. The PAH profile in the tuber samples were dissimilar at both communities when compared. The Low molecular weight PAH to High molecular weight PAH ratio (LMW-PAH/HMW-PAH) showed that the high molecular PAH were predominant in the tubers thus suggesting that the source of PAH in the tubers are of pyrogenic origin.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7321
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170322 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7321
doi
dc
The effect of relationship marketing, emotional marketing and supportive marketing on customers loyalty with the mediating role of customers satisfaction: a case study (pars Abad banks)
Talaneh, Elhameh
Department of Management, Germi Branch, Islamic Azad University, Germi, Iran
Sarboland, Kheirollah
Department of Management, Parsabad Moghan Branch, Islamic Azad University, Parsabad Moghan, Iran
In today’s competitive world, the attraction and retention of customers in banking industry has become much more difficult and only those banks are successful in this competition that focuses their activities on attraction and retention of their customers. In other words, customers’ satisfaction and loyalty are considered as one of the most significant objectives of banking system. Consequently, the purpose of present research is to investigate the impact of relationship marketing, emotional marketing and supportive marketing on the customers’ loyalty in Pars Abad banks with the mediating role of customers’ satisfaction. The statistical population of research comprises all the customers of private banks, public banks and credit and finance institutions of Pars Abad. From this population, 377 customers were selected as the research sample using random sampling method in terms of Morgan table. The questionnaires were used as the statistical instrument for data collection. The reliability of these questionnaires was confirmed using Cranach’s Coefficient Alpha. The collected data were analyzed using Structural Equation Modeling (SEM) and Boot Strap. The SPSS, Lisrel and Stata software were also used in various stages of estimation. The results revealed that the customers’ satisfaction plays a mediating function in the relationship between the effect of relationship marketing, emotional marketing and supportive marketing on customers’ loyalty.
Science Publishing Corporation
2016-12-07 09:19:14
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International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7442
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170412 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7442
doi
dc
Exposure to uppercott induces hepatotoxicity in male albino wistar rats
Modo, Emmanuel
Department of Biochemistry, Faculty of Science, Madonna University, Nigeria, Elele Campus, P.M.B. 48. Elele, Rivers State, Nigeria
Uboh, Friday
Department of Biochemistry, Faculty of Basic Medical Science, University of Calabar, Calabar, Rivers State, Nigeria
Agiang, Margaret
Department of Biochemistry, Faculty of Basic Medical Science, University of Calabar, Calabar, Rivers State, Nigeria
Ewere, Efosa
Department of Biochemistry, Faculty of Basic Medical Science, University of Uyo, Uyo, Akwa Ibom State, Nigeria.
Background: The use of herbicides and pesticides in agriculture and for public health purposes has led to harmful effects in many non-target species including man.
Methods: In this study, the hepatic effect of exposure to cypermethrin and dimethoate mixture (uppercott) was investigated in male albino wistar rats. Forty five (45) male wistar albino rats were distributed into five (5) groups of nine (9) animals each. Groups 1 and 2 served as the normal control and oil control respectively, groups 3, 4 and 5 received 2.5%, 5% and 7.5% LD50 of uppercott orally for 28 days.
Results: Results obtained revealed that uppercott exposure significantly (p<0.05) increased serum aspartate aminotransferase (AST) activity, alanine aminotransferase (ALT) activity and alkaline phosphatase (ALP) activity when the test groups were compared with control. Also, uppercott exposure raised serum bilirubin concentration slightly insignificantly compared to the control. Superoxide dismutase activity was significantly reduced across all test groups as compared with compared with control. Histology of liver tissues revealed patchy necrotic sessions in the liver tissues of the test experimental groups (2.5%, 5% and 7.5%).
Conclusion: The results obtained from this study are strongly indicative of the hepatotoxic effect of uppercott pesticide and hence, caution during usage is advised.
Science Publishing Corporation
2016-12-07 09:19:14
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http://www.sciencepubco.com/index.php/IJSW/article/view/7442
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7585
2017-05-22T06:09:46Z
IJSW:ART
nmb a2200000Iu 4500
"170521 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7585
doi
dc
The impact of Maize (Zea mays L.) and it uses for human development: A review
Adiaha, Monday Sunday
Cross River University of Technology, Nigeria
Corn possesses significances nutrients, minerals and vitamins, which provides nutrition in animal diet as well as man. Its health benefits have been countless since the prehistoric era. Maize has been revealed to have the potential to sustained human health-related cases, raise standard of living of farmers, served as a soil fertility indicator crop, generate income and increase food-crop production for the increasing human population. Industrial utilization of maize has been shown to include: wet milling, production of bio-fuel, ethanol and other sub-byproducts.
Science Publishing Corporation
2016-12-07 09:19:14
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application/vnd.openxmlformats-officedocument.wordprocessingml.document
http://www.sciencepubco.com/index.php/IJSW/article/view/7585
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7607
2017-05-21T05:20:52Z
IJSW:ART
nmb a2200000Iu 4500
"170516 2017 eng "
2307-9037
10.14419/ijsw.v5i1.7607
doi
dc
Comparison of fatty acids profile and antioxidant enzyme level of cladoceran Moina brachiata (jurine, 1820) from freshwater bodies of Chennai
Jeyam. M, Gomathi
University of Madras
Ravichandran, Ramanibai
University of Madras
Omega-3 family (ω-3) of polyunsaturated fatty acids (PUFA) was considered as an important biochemical for the physiological function of all trophic level animals. In this study, we demonstrated the effect of algal diet on fatty acids composition (FA), antioxidant enzymes and DNA damage of Moina brachiata from Adyar River and Kolavoi Lake. 8 different fatty acids were identified in M. brachiata through GC-MS analysis and we noticed two PUFA (Eicosapentaenoic acid, EPA 20:5 (ω-3); Linoleic acid 18:2 (ω-6)). The dietary fatty acid accumulation and bioconversion capacity of M. brachiata have differed in two lakes fed with algal diet. The high amount of ω-3 PUFA was observed in M. brachiata fed with Scenedesmus sp. in Kolavoi Lake (35.84%) followed by Adyar River (33.78%). PUFA content was significantly declined in wild M. brachiata of Adyar River (17.44%) followed by Kolavoi lake (25.78%). On the other hand, high level of Malondialdehyde (MDA) and decreasing level of key antioxidant enzymes likes Superoxide dismutase (SOD), Catalase (CAT), Glutathione peroxidase (GSH) and DNA damage were observed in wild M. brachiata of Adyar River. Hence, the algal diet could enhance the level of antioxidant enzyme activity by decreasing the level of MDA and it does not show DNA damage on M. brachiata. Overall, the results obtained in this study explored that Scenedesmus sp., has the ability to enhance the PUFA content, antioxidant enzyme activity and prevent the DNA damage in M. brachiata which was declined in the wild animal due to the environmental stress conditions.
Science Publishing Corporation
2016-12-07 09:19:14
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http://www.sciencepubco.com/index.php/IJSW/article/view/7607
International Journal of Scientific World; Vol. 5 No. 1 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7819
2017-11-10T13:48:06Z
IJSW:ART
nmb a2200000Iu 4500
"170627 2017 eng "
2307-9037
10.14419/ijsw.v5i2.7819
doi
dc
Economics of Maize (Zea mays L.) production in Nigeria and Maize traditional utilization
Adiaha, Monday Sunday
Cross River University of Technology, Nigeria
A survey on economics of Maize (Zea mays L.) production in Nigeria and its traditional utilization was conducted. Result of the survey presented maize having the potential of increasing the economy of the nation. Analyzed data presented maize been able to increase the income of the local people and foreign exchange earnings, as observed where price of the crop during 1980 (2500) stands below price at 1989 (14000). Increased in land utilization with increase in years was observed in data analyzed as 1980 (95600 hectares) of land area stands below (211740) in1989. Traditional utilization of maize has been found to include where the crop is been used as herbal medicine, as food, in traditional religion, in-addition to where the crop is been utilized in marital rituals.
Science Publishing Corporation
2017-06-27 19:29:11
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http://www.sciencepubco.com/index.php/IJSW/article/view/7819
International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/7900
2017-11-10T13:48:06Z
IJSW:ART
nmb a2200000Iu 4500
"170627 2017 eng "
2307-9037
10.14419/ijsw.v5i2.7900
doi
dc
Zika virus, the way forward: Nigeria as case study
Modo, Emmanuel
Department of Biochemistry, Madonna University, Nigeria
Okoro, Favour
Department of Biochemistry, Madonna University, Nigeria
Orji, Blessing
Department of Biochemistry, University of Benin
Njoku, Rex-Clovis
Department of Biochemistry, Madonna University, Nigeria
Zika Virus is a flavivirus that is responsible for an unprecedented current epidemic. It is an emerging mosquito borne virus that is a (+) sense single-stranded RNA virus from the Flaviviridae virus family, Flavivirus genre and the Zika virus specie. Zika virus bears a complex genome and virion structure. Its reproductive cycle in host cell involves virion endocytosis that allows entrance into host cell. Zika virus infection gives symptoms that are usually mild and last for few days and infection can be easily transferred from infected mosquitoes, from a pregnant woman to her fetus, sexual intercourse, blood transfusion, and laboratory exposure. Several methods are made available for the diagnosis of this infection and several ways to prevent this infection such as elimination and control of mosquito, prevention of mosquito bites and public awareness about Zika and mosquitoes. No vaccines are available for treatment yet but common medications are advised for symptoms. The virus has been associated with fetal microcephaly in humans. Information is provided for the epidemiology of Zika virus to evaluate the level of risk for people who may be planning to travel to or are recently returning from areas with possible local transmission. In the African region this is done considering a number of factors and cases in the past. The rapid development of a safe and effective vaccine, genetically modified mosquitoes, use of bacteria, and other innovations are currently worked on to curb the spread of Zika virus.
Science Publishing Corporation
2017-06-27 19:29:11
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http://www.sciencepubco.com/index.php/IJSW/article/view/7900
International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/8012
2017-11-10T13:48:06Z
IJSW:ART
nmb a2200000Iu 4500
"170829 2017 eng "
2307-9037
10.14419/ijsw.v5i2.8012
doi
dc
Soft structures of groups and rings
Ghosh, Jayanta
Department of Mathematics,Manickpur Adarsha Vidyapith,Deltamill, Howrah-711309, West Bengal.
Mandal, Dhananjoy
Department of Mathematics, University of Calcutta, 35 Ballygunge circular road, Kolkata-700019.
Samanta, Tapas
Department of Mathematics, Uluberia College, Howrah-711315, West Bengal.
Concept of soft equivalence relations (classes, mappings) are introduced using the notion of soft elements. Then we redefine the notion of soft group and soft ring in a new way by using the idea of soft elements and it is seen that our definitions of soft group and soft ring are equivalent to the existing notions of soft group [2] and soft ring [1]. The notion of soft coset is presented and validated by suitable examples. We investigate some important properties like soft divisor of zero, characteristic of a soft ring etc. by considering examples. Moreover, some necessary and sufficient conditions are established for a soft ring to be a soft integral domain and soft field.
Science Publishing Corporation
2017-06-27 19:29:11
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International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/8109
2017-11-10T13:48:06Z
IJSW:ART
nmb a2200000Iu 4500
"170818 2017 eng "
2307-9037
10.14419/ijsw.v5i2.8109
doi
dc
A study on the reliability and performance of solar powered street lighting systems
Fashina, Adebayo
African University of Science and Technology, Abuja
Azeko, Salifu
Tamale Technical University
Asare, Joseph
Baze University
Ani, Chukwuemeka
African University of Science and Technology, Abuja
Anye, Vitalis
Nile University of Nigeria
Rwenyagila, Egidius
University of Dar es Salaam
Dandogbessi, Bruno
African University of Science and Technology, Abuja
Oladele, Omotoba
African University of Science and Technology, Abuja
Dyeris, Murna
African University of Science and Technology, Abuja
This paper presents the results of a study on the reliability and performance of the solar-powered street lighting systems installed at the African University of Science and Technology (AUST) in Nigeria, a hot and humid environment. The technical performance of the systems was studied using the following performance indicators: system energy yield, capture loss, as well as the system performance ratio while the reliability of the systems was examined using a model developed from the findings from the maintenance and fault diagnosis of the systems. The model was used to predict the total failure and survival probability of the systems using the Weibull distribution. The performance evaluation during the monitored period (February 2012 to January 2015) indicated that the performance ratios of the systems vary from 70% to 89% and the energy yields of the systems ranging from 2.87 h/day to 5.57 h/day. The results from the reliability analysis also showed that when the stress concentration factor around the notch between the cable terminals in the charge controller increases, the charge controller will become overheated, which in turn affected other components of the systems. The implications of this study are also discussed for the design and development of future solar-powered street lighting systems.
Science Publishing Corporation
2017-06-27 19:29:11
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http://www.sciencepubco.com/index.php/IJSW/article/view/8109
International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/8112
2017-11-10T13:48:06Z
IJSW:ART
nmb a2200000Iu 4500
"170905 2017 eng "
2307-9037
10.14419/ijsw.v5i2.8112
doi
dc
Responses of Utasi (Gongronema latifolium) to NPK 15:15:15 Fertilizer Rates in a Utisol South-South Nigeria
U. L., Undie
O. A, Agba
Cross River University of Technology, Nigeria
M. S, Adiaha
Cross River University of Technology, Nigeria
P. O., Osang
Gongronema latifolium (Benth) called Utasi by Igbos and Arokeke by Yorubas belongs to Ascepiadaceae family. It is an herbaceous climbing plant found in the tropical region. The leaves are used for food, culinary, medicinal and other domestic purposes. The plant is found among the wild and is not cultivated in regular farms. It is one of the endanger species that stands the risk of been extinct. Therefore, the study was carried out to determine the responses of Gongronema latifolium to seven rates of NPK 15:15:15 fertilizer during 2014 and 2015 cropping seasons at the Teaching and Research Farm, Agronomy Department, Cross River University of Technology Obubra, Cross River State, Nigeria. The experimental design was a randomized complete block design. Treatments were seven rates; 0kg/ha, 50, 100, 150, 200, 250 and 300kg/ha of NPK (15:15:15) fertilizer replicated four times. Results showed that application of 300kg/ha of NPK 15:15:15 fertilizer gave a higher number of leaves, branches per plant and tallest plants than the other rates of NPK fertilizer. The highest leaf yields in hectares were obtained in plots treated with 200kg/ha in 2014 and 2015 seasons respectively.
Based on these findings, farmers are advice to domesticate and cultivate Gongronema latifolium with the application of 200kg/ha NPK 15:15:15 fertilizer for optimum growth and leaf yield.
Science Publishing Corporation
2017-06-27 19:29:11
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http://www.sciencepubco.com/index.php/IJSW/article/view/8112
International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/8242
2017-11-10T13:48:06Z
IJSW:ART
nmb a2200000Iu 4500
"170926 2017 eng "
2307-9037
10.14419/ijsw.v5i2.8242
doi
dc
Bound lengths for Burr-XII distribution under step-stress PALT
Prakash, Gyan
Assistant Professor
Some inferences based on Step-Stress Partially Accelerated Life Test (SS-PALT) are discussed in the present article. The Progressive Type-II censoring criterion with Random Removal scheme is used for determining the Approximate Confidence Lengths and One-Sample Bayes Prediction Bound Lengths for the unknown parameters of the Burr Type-XII distribution. Based on the simulated data, the analysis of the present discussion has been carried out.
Science Publishing Corporation
2017-06-27 19:29:11
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http://www.sciencepubco.com/index.php/IJSW/article/view/8242
International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
oai:ojs.pkp.sfu.ca:article/8351
2017-11-11T21:25:21Z
IJSW:ART
nmb a2200000Iu 4500
"171110 2017 eng "
2307-9037
10.14419/ijsw.v5i2.8351
doi
dc
A critical review of production factors that influ-ence egg quality traits
John-Jaja, Sylvia
Babcock University
Abdullah, Abdur-Rahman
Babcock University
Nwokolo, Samuel
University of Calabar
The global poultry industry has experienced significant changes in the methods used to harvest and process the fresh egg over the past century. Applications of animal genetics and breeding have significantly increased in line speed for poultry operation. In this study aims at reviewing production factors that influence egg quality traits across the globe. The production factors so far utilized were classified into three main categories and presented based on their influencing capacity. For this purpose, two types of search criteria to find publications relevant to the scope of this review were employed. The first type was an automatic search performed on the following publishers' databases: ScienceDirect, Google's scholar, researcher gates, academia. The second type was a manual search on conferences, recent theses and dissertation that have not been published in journals from numerous Babcock University. Generally, 23 publications were reported for the breed; 17 for housing, and 19 for age of the breed after excluding studies that do not focus explicitly on breed, housing and age of the bird as production factors that influenced egg quality traits out of 183 potential relevant articles identified from January 2001 to December 2016. Thus, this review would provide animal genetics and breeding researchers in terms of identifying the most potent breed, adequate housing system and precise age for optimum production of birds with high quality.
Science Publishing Corporation
2017-06-27 19:29:11
application/pdf
http://www.sciencepubco.com/index.php/IJSW/article/view/8351
International Journal of Scientific World; Vol. 5 No. 2 (2017)
eng
Copyright (c) 2017 International Journal of Scientific World
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