Journal of the Association of Arab Universities for Basic and Applied Sciences This is an RSS file. You can use it to subscribe to this data in your favourite RSS reader or to display this data on your own website or blog.

Synthesis and spectral, antibacterial, molecular studies of biologically active organosilicon(IV) complexes
Publication date: Available online 11 June 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Har Lal Singh, J.B. Singh, Sunita Bhanuka A series of new organosilicon(IV) complexes have general formulae R3SiL and RSiLOEt with Schiff bases (R=Me and Ph). The Schiff bases (LH) have been derived from the condensation of (2-hydroxyphenyl)(pyrrolidin-1-yl)methanone with semicarbazide, thiosemicarbazide, and phenylthiosemicarbazide, respectively. The compounds have been characterized by the elemental analysis, molar conductance, and spectral (UV, IR, 1H, 13C, and 29Si N...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - June 11, 2016 Category: Science Source Type: research

Stability and ultimate boundedness of solutions of some third order differential equations with delay
Publication date: Available online 8 June 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): M. Remili, D. Beldjerd This paper is devoted to study the boundedness, ultimate boundedness, and the asymptotic stability of solutions for a certain class of third-order nonlinear differential equations using Lyapunov’s second method. Our results improve and form a complement to some earlier results in the literature. (Source: Journal of the Association of Arab Universities for Basic and Applied Sciences)
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - June 7, 2016 Category: Science Source Type: research

Fully developed flow of non-Newtonian fluids in a straight uniform square duct through porous medium
Publication date: Available online 11 May 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): M. Devakar, K. Ramesh, Sagar Chouhan, Ankush Raje In this paper, we have studied the flow of incompressible fluids in a straight square duct through the porous medium. The couple stress fluid model and Jeffrey fluid model are considered separately to study the flow properties. The governing partial differential equations have been solved numerically using finite difference method in each case. In both the cases, the variation of different flow parameters on the fluid ve...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - May 11, 2016 Category: Science Source Type: research

A one pot, three component synthesis of coumarin hybrid thiosemicarbazone derivatives and their antimicrobial evolution
Publication date: Available online 11 May 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Rajesh H. Vekariya, Kinjal D. Patel, Dhanji P. Rajani, Smita D. Rajani, Hitesh D. Patel A convenient, one-pot, multi-component protocol for the preparation of 2-(1-(2-oxo-2H-chromen-3-yl)ethylidene)hydrazinecarbothioamide derivatives has been achieved. Here, firstly we have reported the synthesis of 3-acetyl-2H-chromen-2-one using starch sulfuric acid and cellulose sulfuric acid as biodegradable catalysts. Subsequently, we also carried out the reaction of isothiocynat...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - May 10, 2016 Category: Science Source Type: research

Quintic spline collocation method for fractional boundary value problems
Publication date: Available online 19 April 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Ghazala Akram, Hira Tariq The spline collocation method is a competent and highly effective mathematical tool for constructing the approximate solutions of boundary value problems arising in science, engineering and mathematical physics. In this paper, a quintic polynomial spline collocation method is employed for a class of fractional boundary value problems (FBVPs). The FBVPs are expressed in terms of Caputo’s fractional derivative in this approach. The consistency re...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - April 19, 2016 Category: Science Source Type: research

2-Amino-4-(2,4-dihydroxyphenyl) quinoline-3-carbonitrile as sustainable corrosion inhibitor for SAE 1006 steel in 1M HCl: Electrochemical and surface investigation
Publication date: Available online 16 April 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Chandrabhan Verma, M.A. Quraishi The corrosion inhibition efficiency of 2-amino-4-(2,4-dihydroxyphenyl) quinoline-3-carbonitrile (ADQC) on SAE 1006 steel has been investigated using electrochemical (EIS and Polarization), surface (SEM, EDX and AFM) and quantum chemical calculation methods. Results showed that inhibition efficiency increases with increasing ADQC concentration and maximum value of 96.12% was obtained at 25mg/L concentration. EIS results showed the ADQC inhi...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - April 16, 2016 Category: Science Source Type: research

Money laundering regulatory risk evaluation using Bitmap Index-based Decision Tree
Publication date: Available online 5 April 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Vikas Jayasree, R.V. Siva Balan This paper proposes to evaluate the adaptability risk in money laundering using Bitmap Index-based Decision Tree (BIDT) technique. Initially, the Bitmap Index-based Decision Tree learning is used to induce the knowledge tree which helps to determine a company’s money laundering risk and improve scalability. A bitmap index in BIDT is used to effectively access large banking databases. In a BIDT bitmap index, account in a table is numbered i...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - April 5, 2016 Category: Science Source Type: research

Global warming awareness among the University of Bahrain science students
This study was designed to investigate the awareness regarding global warming among the College of Science students at University of Bahrain. A total of 143 science students were examined using a questionnaire that covered three aspects of global warming including causes, impacts, and solutions. The study included 51, 28, 40 and 24 students from the departments of biology, chemistry, mathematics, and physics respectively. The results have shown that 55±10.18% of all students examined answered the questions correctly of which 51±10.28% were in the first year, while 60±7.4% were in their fourth year indicating a direct po...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - March 22, 2016 Category: Science Source Type: research

Chemoprotective role of molybdo-flavoenzymes against xenobiotic compounds
This study therefore provides definitive proof that both AO and XOR are involved in detoxification. (Source: Journal of the Association of Arab Universities for Basic and Applied Sciences)
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - March 12, 2016 Category: Science Source Type: research

Stability and boundedness in delay system of differential equations of third order
Publication date: Available online 22 February 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Cemil Tunc In this paper, a class of non-linear vector differential equations of third order with delay is considered. The stability, boundedness and ultimately boundedness of solutions are studied. The technique of proofs involves defining an appropriate Lyapunov functional. The obtained results include and improve the results in the literature. (Source: Journal of the Association of Arab Universities for Basic and Applied Sciences)
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - February 23, 2016 Category: Science Source Type: research

Adsorption behavior of 8,9-bis(4 (dimethyl amino)phenyl)benzo[4,5]imidazo[1,2-a]pyridine-6,7-dicarbonitrile on mild steel surface in 1M HCl
Publication date: Available online 19 February 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Chandrabhan Verma, M.A. Quraishi The effect of 8,9-bis(4 (dimethylamino)phenyl)benzo[4,5]imidazo[1,2-a]pyridine-6,7-dicarbonitrile (INH) on mild steel corrosion in 1M HCl was studied by electrochemical, surface and quantum chemical calculation methods. Results showed that percentage of inhibition efficiency increases on increasing INH concentration. The maximum inhibition efficiency of 96.32% was obtained at 25mgL−1 concentration. Tafel polarization measurements show...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - February 20, 2016 Category: Science Source Type: research

Adsorption, leaching and phytotoxicity of some herbicides as single and mixtures to some crops
Publication date: Available online 19 February 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Yasser El-Nahhal, Nisreen Hamdona The study investigated adsorption, leaching potential, and phytotoxicity of alachlor, bromacil, and diuron on melon, Molokhia, and wheat in Gaza strip. Plant height was used to estimate growth inhibition (phytotoxicity). Growth inhibition data were regressed versus concentrations of corresponding herbicide to estimate EC50 value. The lowest EC50 value indicates the highest phytotoxicity. Adsorption results indicated that alachlor, brom...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - February 20, 2016 Category: Science Source Type: research

New interaction solutions to the combined KdV–mKdV equation from CTE method
Publication date: Available online 19 February 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Hengchun Hu, Meiying Tan, Xiao Hu The consistent tanh expansion (CTE) method is developed for the combined KdV–mKdV equation. The combined KdV–mKdV equation is proved to be CTE solvable. New exact interaction solutions such as soliton–cnoidal wave solutions, soliton–periodic wave solutions for the combined KdV–mKdV equation are given out analytically and graphically. (Source: Journal of the Association of Arab Universities for Basic and Applied Sciences)
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - February 20, 2016 Category: Science Source Type: research

Shapeable maximum-power point-tracking algorithm to improve the stability of the output behavior of a thermoelectric-solar hybrid energy-harvesting system
This study presents the development of a novel maximum-power point-tracking (MPPT) method based on an input shaping scheme controller. The proposed method that changes the initial input response into a shapeable MPPT algorithm is designed based on an exponential input function. This type of input function is selected because of its capability to stabilize the system at the end of the simulation time and remain at the same condition at the final response time. A comparison of the system with the proposed method and the system with traditional perturb and observe (PnO) method is also provided. Results show that the system wi...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - February 20, 2016 Category: Science Source Type: research

HPLC method development, validation and its application to investigate in vitro effect of pioglitazone on the availability of H1 receptor antagonists
Publication date: Available online 3 February 2016 Source:Journal of the Association of Arab Universities for Basic and Applied Sciences Author(s): Agha Zeeshan Mirza, M. Saeed Arayne, Najma Sultana The method has been developed and validated for the simultaneous determination of pioglitazone and H1-receptor antagonists (fexofenadine, cetirizine and levocetirizine) in formulations and human serum. Utilizing HPLC techniques, an assay was designed to determine the in vitro effects of pioglitazone on H1-receptor antagonists. Obtained results were verified using the UV spectrophotometric technique. First-derivative v...
Source: Journal of the Association of Arab Universities for Basic and Applied Sciences - February 4, 2016 Category: Science Source Type: research