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All published articles 117985

Groundwater Modelling, An Effective Tool in the Assessment of Groundwater Contamination: A Case Study of Umunwanwa in Umuahia-South, Abia State, Nigeria

C. Amos-Uhegbu, M.U. Igboekwe, K.T. Eke & R.U. Adindu · Current Journal of Applied Science and Technology · 2012

To determine the environmental suitability (impacts on groundwater) of an excavated pit located within the eastern boundary of Umunwanwa for any form of waste discharge (sewage or solid waste), modelling approach was adopted. A thorough geophysical / hydrogeological investigation...

Open access Research Article 10.9734/BJAST/2012/1518

A Food Chain Model with Ratio-dependent Functional Response, Impulsive Perturbations and Feedback Controls

Jian-wen Jia & Jian-feng Liu · Journal of Advances in Mathematics and Computer Science · 2012

In this paper, a food chain system with ratio-dependent functional response, impulses,feedback controls and delays is studied. By using the theorem of coincidence degree, homotopy invariance property and Lyapunov’s approach, a set of sufficient conditions for ensuring the existen...

Open access Research Article 10.9734/BJMCS/2012/1230

Biparameter Homotopy-based Direct Current Simulation of Multistable Circuits

H. Vazquez-Leal, R. Castaneda-Sheissa, A. Yıldırım, Y. Khan, A. Sarmiento-Reyes, V. Jimenez-Fernandez, A.L. Herrera-May, U. Filobello-Nino, F. Rabago-Bernal & C. Hoyos-Reyes · Journal of Advances in Mathematics and Computer Science · 2012

The microelectronics area constantly demands better and improved circuit simulation tools. This is the reason that this article is to present a biparameter homotopy with automated stop criterion, which is applied to direct current simulation of multistable circuits. This homotopy...

Open access Research Article 10.9734/BJMCS/2012/1346

Strong Convergence Theorems for Asymptotically Pseudocontractive Mappings in the Intermediate Sense

J. O. Olaleru & G. A. Okeke · Journal of Advances in Mathematics and Computer Science · 2012

In this study, we prove a strong convergence of Noor type scheme for a uniformly L-Lipschitzian and asymptotically pseudocontractive mappings in the intermediate sense without assuming any form of compactness. Consequently, we also obtain a convergence result for the class of asy...

Open access Research Article 10.9734/BJMCS/2012/1569

Solitary Wave, Periodic Cusp Wave and Compactons of the (2+1)-Dimensional KP-Like K(m,n) Equation

Libing Zeng & Shengqiang Tang · Journal of Advances in Mathematics and Computer Science · 2012

By using the bifurcation theory of dynamical systems to the generalized KP equation, under different parametric conditions, various sufficient conditions to guarantee the existence of the solitary wave solutions, periodic cusp wave solutions and compactons solutions are given. So...

Open access Research Article 10.9734/BJMCS/2012/1420

Effect of Different Decontamination Methods on Microbiological Aspects, Bioactive Constituents and Antibacterial Activity of Turmeric (Curcuma longa Linn.) Powder

Sasitorn Chusri, Sanan Subhadhirasakul, Nurhakeem Tahyoh, Chareefah Billateh, Chayanon Chaowuttikul, Julalak Chorachoo & Supayang Piyawan Voravuthikunchai · European Journal of Medicinal Plants · 2012

Turmeric (Curcuma longa Linn.) has long been widely used for food, food additives, and traditional medicine. This study was aimed to assess effects of different decontamination procedures of turmeric rhizomes on microbiological quality and bioactive constituents of aseptically pr...

Open access Research Article 10.9734/EJMP/2012/1298

Haematological and Hepatotoxic Potential of Onion (Allium cepa) and Garlic (Allium sativum) Extracts in Rats

Enitan Seyi Samson, Ajeigbe Kazeem Olasunkanmi, Josiah Sunday Joel & Ehiaghe Friday Alfred · European Journal of Medicinal Plants · 2012

Aims: To evaluate and compare the effects of single and combined oral administration of fresh aqueous onion (Allium cepa) and garlic (Allium sativum) extracts at different concentrations (200mg/kg/d, 400mg/kg/d and 600mg/kg/d) on some haematological and hepatotoxicity indicator p...

Open access Research Article 10.9734/EJMP/2012/1517

Assessment of the Activity of Selected Indian Medicinal Plants against Mycobacterium tuberculosis: A Preliminary Screening Using the Microplate Alamar Blue Assay

Tannaz Birdi, Desiree D’souza, Monica Tolani, Poonam Daswani, Vinita Nair, Pundarikakshudu Tetali, Juan Carlos Toro & Sven Hoffner · European Journal of Medicinal Plants · 2012

Aim: Identification of anti-Mycobacterium tuberculosis agents of plant origin, against sensitive and multidrug resistant (MDR) strains. Study Design: Assessing anti-M. tuberculosis activity of five Indian medicinal plants, which have been reported in traditional literature for va...

Open access Research Article 10.9734/EJMP/2012/1638

Comparison of the Microwave-Assisted Hydrodistillation with the Traditional Hydrodistillation Method in the Extraction of Essential Oils from Ferulago angulata (Schelcht.) Boiss

Jila Asghari, Cheshmnaz Khamoie Touli, Mohsen Mazaheritehrani & Mahnaz Aghdasi · European Journal of Medicinal Plants · 2012

Aims: The evaluation of the chemical constituents and the percentages of extracted volatile oils from the aerial parts of Ferulago angulata (Scheleht.) Boiss (Apiaceae) by using MAHD and HD. Study Design: Extraction of essential oils from F. angulata through traditional hydrodist...

Open access Research Article 10.9734/EJMP/2012/1488

Synthesis of Organometallic-Based Biologically Active Compounds: In vitro Antibacterial and Antifungal of Asymmetric Ferrocene-Derived Schiff-Bases Chelates

W. H. Hegazy · International Research Journal of Pure and Applied Chemistry · 2012

Asymmetric 1,1`-disubstituted ferrocene-derived Schiff-bases have been prepared and used as ligands in the preparation of their novel Pd(II) and Pt(IV) metal chelates. The synthesized ligands and their metal chelates have been characterized by their physical, analytical and spect...

Open access Research Article 10.9734/IRJPAC/2012/1627

Micrometer–Range Pattern Formation of Crystal Films from Liquid Thin Films of Maleimide Methanol Solution

Janice B. Rabor, Toshifumi Yoshidome, Keigo Tamaki, Yuki Tsurumura, Brian J. Sarno & Morihide Higo · International Research Journal of Pure and Applied Chemistry · 2012

Crystal films of maleimide were produced from methanol solution liquid thin film climbing a vertical glass substrate. Optical microscopy and infrared (IR) spectroscopy were used to evaluate the crystal films. Maleimide methanol solution produced four banded crystal films with dif...

Open access Research Article 10.9734/IRJPAC/2012/1674

Effectiveness of Cooperative Learning Strategies on Nigerian Junior Secondary Students’ Academic Achievement in Basic Science

Bilesanmi-Awoderu Jumoke Bukunola & Oludipe Daniel Idowu · Journal of Education, Society and Behavioural Science · 2012

Aims: This study investigated the effectiveness of cooperative learning strategies on Nigerian Junior Secondary students’ academic achievement in basic science. Study Design: Quasi experimental pretest – posttest – delayed posttest control group design was used by the researchers...

Open access Research Article 10.9734/BJESBS/2012/1628

Total Phenolics and Antioxidant Activity of Defatted Fresh Taif Rose, Saudi Arabia

El-Sayed S. Abdel-Hameed, Salih A. Bazaid & Mohamed M. Shohayeb · Journal of Pharmaceutical Research International · 2012

Recently, the residues or by-products of agriculture industry take attention for their valuable source of natural antioxidants. Taif rose (Rosa damascena trigintipetala Dieck) is considered one of the most important economic products of Taif, Saudi Arabia. In this study, the anti...

Open access Research Article 10.9734/BJPR/2012/1493

Formulation and Evaluation of Gel Forming Ocular Minitablets Containing Piroxicam

Abd EL–Gawad H. Abd EL–Gawad, Osama A. Soliman, Susan A. Barker & Germeen N.S. Girgis · Journal of Pharmaceutical Research International · 2012

Aims: The purpose of this in vitro and ex vivo study was to prepare and characterise ocular minitablets of piroxicam based on different polymeric matrices and to evaluate their potential to provide prolonged and controlled drug release to ocular tissues after surface administrati...

Open access Research Article 10.9734/BJPR/2012/1653

Piper sarmentosum Improves Bone Structure and Biomechanical Strength of Rats Given Excess Glucocorticoid

S. Ima Nirwana, M. R. Elvy Suhana, M. A. Siti Fadziyah, H. S. Farihah, A. Fairus & M. N. Muhamad Alfakri · Journal of Pharmaceutical Research International · 2012

Aims: To determine the effect of Piper sarmentosum (Ps) leaf extract on biomechanical strength and trabecular structure of the bones of glucocorticoid-induced osteoporotic rats. Study Design: Administration of crude extract to rats with excessive glucocorticoids. Place and Durati...

Open access Research Article 10.9734/BJPR/2012/1435