Journal of Taibah University for Science 
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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.A novel spectrophotometric method for the determination of copper ion by using a salophen ligand, N,N ′-disalicylidene-2,3-diaminopyridine
In this study, a novel, selective and highly sensitive spectrophotometric method has been developed for the determination of copper(II) by using a new chromogenic reagent N,N′-bissalicylidene-2,3-diaminopyridine (H2IF). The absorbance was measured at λmax=414nm. Experimental conditions were optimized, and Beer’s law was observed in the concentration range of 6.35–318μgL−1 of copper. The molar absorptivity of the complex was calculated and found to be 1.46×105 Lmol−1 cm−1. The detection and quantification limits were calculated and found to be 6.38μgL−1 and 21.27μgL−1, respectively. The calculated relat...
Source: Journal of Taibah University for Science - May 31, 2017 Category: Science Source Type: research
Statistical analyses and risk assessment of potentially toxic metals (PTMS) in children ’s toys
Publication date: Available online 28 March 2017 Source:Journal of Taibah University for Science Author(s): Aderonke O. Oyeyiola, Mary I. Akinyemi, Ifechukwude E. Chiedu, Oluwatoyin T. Fatunsin, Kehinde O. Olayinka Chemical exposure of children, especially from toys, is an engineering concern. The concentration and availability of potentially toxic metals (PTM) in children’s toys were determined to assess the risk that these metals pose to children. Samples of 25 toys imported from China to Nigeria were purchased. Ternary acid digestion, followed by Atomic Absorption Spectrophotometry, was used to determine the co...
Source: Journal of Taibah University for Science - May 31, 2017 Category: Science Source Type: research
A new approach for solving fractional differential-algebric equations
Publication date: Available online 24 May 2017 Source:Journal of Taibah University for Science Author(s): F. Ghomanjani In this paper, the Bezier curves method is implemented to give approximate solutions for fractional differential-algebraic equations (FDAEs). This methods in applied mathematics can be used as approximated method for obtaining approximate solutions for different types of fractional differential equations. An illustrative example is included to demonstrate the validity and applicability of the suggested approach. (Source: Journal of Taibah University for Science)
Source: Journal of Taibah University for Science - May 24, 2017 Category: Science Source Type: research
On the modulation of ionic velocity in electron –positron–ion plasmas
Publication date: Available online 27 April 2017 Source:Journal of Taibah University for Science Author(s): E.K. El-Shewy, H.G. Abdelwahed, N.F. Abdo, M. Saleh Yousef Ion-acoustic structures in electron–positron–ion (e-p-i) plasma are examined by algebraic analysis of model equations. The dynamic of solitary waves are studied through direct approach. The system energy is obtained in terms of velocity of ions. It is founded that, ion-acoustic solitary waves existence are sensitive to densities and temperatures ratio of electrons and positrons. A small but finite amplitude approximation for soliton and shock waves ...
Source: Journal of Taibah University for Science - May 21, 2017 Category: Science Source Type: research
Alleviating salt stress in tomato inoculated with mycorrhizae: photosynthetic performance and enzymatic antioxidants
Publication date: Available online 13 May 2017 Source:Journal of Taibah University for Science Author(s): Mohsen K.H. Ebrahim, Abdel-Rahman Saleem Tomato cultivars (Sultana-7 & Super Strain-B) were germinated under various levels (0–200mM) of NaCl. Seed germination of Super Strain-B was promoted at 25mM NaCl. However, the germination of both cultivars was progressively inhibited at 50 and 100mM, and stopped at 200mM, but the response was more pronounced in case of Sultana-7. Therefore, Super Strain-B was selected for further investigation, after growing under NaCl stress (50 & 100mM) and inoculation w...
Source: Journal of Taibah University for Science - May 14, 2017 Category: Science Source Type: research
Ethanol Extract of Tetrapleura tetraptera Fruit Peels: Chemical Characterization, and Antioxidant Potentials against Free Radicals and Lipid Peroxidation in Hepatic Tissues
Conclusion These results suggest an antioxidant protective effect of the extract against oxidative hepatic damage and can be attributed to a synergetic action of the identified bioactive compounds (Source: Journal of Taibah University for Science)
Source: Journal of Taibah University for Science - May 9, 2017 Category: Science Source Type: research
On the modulation of ionic velocity in electron- positron- ion plasmas
Publication date: Available online 27 April 2017 Source:Journal of Taibah University for Science Author(s): E.K. El-Shewy, H.G. Abdelwahed, N.F. Abdo, M. Saleh Yousef Ion- acoustic structures in electron- positron- ion (e-p-i) plasma are examined by algebraic analysis of model equations.The dynamic of solitary waves are studied through direct approach. The system energy is obtained in terms of velocity of ions. It is founded that, ion-acoustic solitary waves existence are sensitive to densities and temperatures ratio of electrons and positrons. A small but finite amplitude approximation for soliton and shock waves ar...
Source: Journal of Taibah University for Science - April 28, 2017 Category: Science Source Type: research
Investigation of the nonlinear equation of the circular sector oscillator by Akbari-Ganji ’s method
Publication date: Available online 23 March 2017 Source:Journal of Taibah University for Science Author(s): Hadi Mirgolbabaee, Soheil Tahernejad Ledari, Navid Mohammad Zadeh, Davood Domiri Ganji In this paper, a new and innovative semi-analytical method called Akbari-Ganji’s method (AGM) has been applied to solve nonlinear equations of the semicircular oscillator. The major concern is to achieve an accurate solution that has an efficient approximation according to the Runge-Kutta numerical method. The results are presented for different values of parameters to demonstrate the applicability of this method. It was fo...
Source: Journal of Taibah University for Science - April 25, 2017 Category: Science Source Type: research
Effect of magnetic field on Blasius and Sakiadis flow of nanofluids past an inclined plate
Publication date: Available online 22 April 2017 Source:Journal of Taibah University for Science Author(s): S.P. Anjali Devi, P. Suriyakumar A theoretical study on the effect of magnetic field on the classical Blasius and Sakiadis flow of nanofluids over an inclined plate is presented in this paper. The governing partial differential equations are converted into ordinary differential equations using suitable similarity transformations. The transformed boundary layer equations are solved numerically using MATLAB(bvp4c). Two types of nanoparticles are chosen namely copper and alumina in the base fluid of water with the P...
Source: Journal of Taibah University for Science - April 22, 2017 Category: Science Source Type: research
Debye –Einstein approximation approach to calculate the lattice specific heat and related parameters for a Si nanowire
Publication date: Available online 16 January 2017 Source:Journal of Taibah University for Science Author(s): A. KH. Alassafee, M.S. Omar The modified Debye–Einstein approximation model is used to calculate nanoscale size-dependent values of Gruneisen parameters and lattice specific heat capacity for Si nanowires. All parameters forming the model, including Debye temperatures, bulk moduli, the lattice thermal expansion and the lattice volume, are calculated according to their nanoscale size dependence. Values for lattice volume Gruneisen parameters increase with the decrease of the nanowires’ diameter, while all ot...
Source: Journal of Taibah University for Science - April 19, 2017 Category: Science Source Type: research
Synthesis of the semi-organic nonlinear optical crystal l-glutamic acid zinc chloride and investigation of its growth and physiochemical properties
Publication date: Available online 16 January 2017 Source:Journal of Taibah University for Science Author(s): S. Chennakrishnan, S.M. Ravi Kumar, C. Shanthi, R. Srineevasan, T. Kubendiran, D. Sivavishnu, M. Packiya raj The aim of this study is to synthesize and investigate the growth and physiochemical properties of the nonlinear optical semi-organic crystal l-glutamic acid zinc chloride (LGAZC). An optically transparent and defect-free crystal was grown with the slow evaporation solution growth technique under optimized conditions. The induction periods were measured at various supersaturations, and the interfaci...
Source: Journal of Taibah University for Science - April 19, 2017 Category: Science Source Type: research
Determination of optical parameters of zinc oxide nanofibre deposited by electrospinning technique
Publication date: Available online 16 January 2017 Source:Journal of Taibah University for Science Author(s): H.S. Bolarinwa, M.U. Onuu, A.Y. Fasasi, S.O. Alayande, L.O. Animasahun, I.O. Abdulsalami, O.G. Fadodun, I.A. Egunjobi Electrospun ZnO was deposited on a glass substrate from zinc acetate dihydrate (Zn(CH3COO)2.2H2O) with polyvinyl acetate (PVAc) polymer dissolved in N, N, dimethyl formamide (DMF) and annealed in the presence of oxygen until organic molecules were decomposed. The resultant fibre was characterized using scanning electron microscope with energy dispersive spectrophotometry (SEMEDS), Fourier ...
Source: Journal of Taibah University for Science - April 19, 2017 Category: Science Source Type: research
Ion solvation in salts of biologically important rare earth metals with aqueous sugar alcohol (sorbitol) mixed-solvent systems
Publication date: Available online 23 January 2017 Source:Journal of Taibah University for Science Author(s): Jayanta Kumar Dash, Susmita Kamila Acoustic investigations have examined the salts of rare earth metals, such as lanthanum(III) chloride, in sorbitol-water mixed solvent systems of different concentrations at 303.15K temperature and 1 atmospheric pressure. Various parameters have been calculated from the measured values of ultrasonic velocity, density and viscosity data. These parameters help to characterize the ion-solvent interaction and are also supportive of the structure-promoting tendency in the present s...
Source: Journal of Taibah University for Science - April 19, 2017 Category: Science Source Type: research
Norfloxacin mixed solvency based solid dispersions: An in-vitro and in-vivo investigation
This study demonstrated that mixed-solvency may be an alternative approach for poorly soluble drugs to improve their solubility and oral bioavailability. (Source: Journal of Taibah University for Science)
Source: Journal of Taibah University for Science - April 19, 2017 Category: Science Source Type: research
Investigation on nonlinear equation of the circular sector oscillator by Akbari-Ganji's Method
Publication date: Available online 23 March 2017 Source:Journal of Taibah University for Science Author(s): Hadi Mirgolbabaee, Soheil Tahernejad Ledari, N. Mohammad Zadeh, Davood Domiri Ganji In this paper a new and innovative semi-analytical method which is called Akbari-Ganji’s Method (AGM) has been applied for solving nonlinear equation of the semicircular oscillator. The major concern is to achieve an accurate solution which has efficient approximation in accordance to Ruge-Kutta numerical method. Results are presented for different values of parameters which has done for the purpose of presenting the applicabi...
Source: Journal of Taibah University for Science - April 19, 2017 Category: Science Source Type: research
