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2011
Raslan, Y. A., and T. A. E. Razik, "Neurochemical and Oxidative Stress of Rats Offspring After Maternal Exposure to Chlorpyrifos During Gestation", Australian Journal of Basic and Applied Science, 2011. Abstract

The present work aimed at evaluating the oxidative damage and histopathological alteration in postnatal rats whose mothers were exposed to chlorpyrifos (CPF) during gestation (Ges) and up todelivery. Sprague-Dawely rats used for this experiment were divided into two sets, one was not exposed to CPF while the other exposed to CPF until deliver. The offspring from (set I) was divided into: one served as control and group 2 was exposed to CPF postnatal (PN) for 30 days. The offspring from (set II) were divided into : one allow to grow up to 60 days without any more treatment (Ges) (group 3), and group 4 was re-exposed to CPF for 30 days, (Ges+PN).

ezz, H. A. S., and N. A. Noor, "The Neuroprotective Effect of Curcumin and Nigella sativa OilAgainst Oxidative Stress in the Pilocarpine Model of Epilepsy:A Comparison with Valproate", Neurochemical Research, 2011. Abstract

Oxidative stress has been implicated to play a role in epileptogenesis and pilocarpine-induced seizures. The present study aims to evaluate the antioxidant effects of curcumin, Nigella sativa oil (NSO) and valproate on the levels of malondialdehyde, nitric oxide, reduced glutathione and the activities of catalase, Na+, K+-ATPase and acetylcholinesterase in the hippocampus of pilocarpine-treated rats. The animal model of epilepsy was induced by pilocarpine and left for 22 days to establish the chronic phase of epilepsy. These animals were then treated with curcumin, NSO or valproate for 21 days. The data revealed evidence of oxidative stress in the hippocampus of pilocarpinized rats as indicated by the increased nitric oxide levels and the decreased glutathione levels and catalase activity. Moreover, a decrease in Na+, K+-ATPase activity and an increase in acetylcholinesterase activity occurred in the hippocampus after pilocarpine.

Essa, K. S., "A New Algorithm for Gravity or Self-Potential Data Interpretation", Journal of Geophysics and Engineering, 2011. Abstract

An inversion algorithm is developed to estimate the depth and the associated model parameters of the anomalous body from the gravity or self-potential (SP) whole measured data. The problem of the depth (z) estimation from the observed data has been transformed into a nonlinear equation of the form F(z) = 0. This equation is then solved for z by minimizing an objective functional in the least-squares sense. Using the estimated depth, the polarization angle and the dipole moment or the depth and the amplitude coefficient are computed from the measured SP or gravity data, respectively. The method is based on determining the root mean square (RMS) of the depths estimated from using all s-values for each shape factor. The minimum RMS is used as a criterion for estimating the correct shape and depth of the buried structure. When the correct shape factor is used, the RMS of the depths is always less than the RMS computed using wrong shape factors. The proposed approach is applicable to a class of geometrically simple anomalous bodies, such as the semi-infinite vertical cylinder, the dike, the horizontal cylinder and the sphere, and it is tested and verified on synthetic examples with and without noise. This technique is also successfully applied to four real datasets for mineral exploration, and it is found that the estimated depths and the associated model parameters are in good agreement with the actual values.

Bhrawy, A. H., and A. W. M. El-Hameed, "New Algorithm for the Numerical Solutions of Nonlinear Third-Order Differential Equations Using Jacobi-Gauss Collocation Method", Mathematical Problems in Engineering, 2011. Abstract

A new algorithm for solving the general nonlinear third-order differential equation is developedby means of a shifted Jacobi-Gauss collocation spectral method. The shifted Jacobi-Gauss pointsare used as collocation nodes. Numerical examples are included to demonstrate the validity andapplicability of the proposed algorithm, and some comparisons are made with the existing results.

Hamza, A. E., and A. M. Sayed, "New Basins of Attraction of Two Recursive Sequences", J. of Difference Equations and Applications, 2011. Abstract
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Mohamed, G. G., N. F. A. El-Dien, and R. G. El-Nahas, "New copper(II) Complexes with Dopamine Hydrochloride and Vanillymandelic Acid: Spectroscopic and Thermal Characterization", Spectrochimica Acta (A), 2011. Abstract

The dopamine derivatives participate in the regulation of wide variety of physiological functions in the human body and in medication life. Increase and/or decrease in the concentration of dopamine in human body re?ect an indication for diseases such as Schizophrenia and/or Parkinson diseases.

Attallah, A. M., S. O. Abdallah, A. S. E. Sayed, M. M.Omran, M. E. Bendary, K. Farid, and M. Kadry, "Non-invasive Predictive Score of Fibrosis Stages in Chronic Hepatitis C Patients Based on Epithelial Membrane Antigen in the Blood in Combination with Routine Laboratory Markers", Hepatology research, 2011. Abstract

Aim: The epithelial membrane antigen(EMA)could detect small deposits of liver malignant cells.However,no information exists regarding the use of EMA in patients with chronic hepatitis C (CHC).Therefore,we attempted to evaluate the diagnostic performance of EMA to distinguish patients with different liver fibrosis stages.

Elqudaby, H. M., E. Y. Z. Frag, G. G. Mohamed, and M. A. E. - R. Mohamed, "Novel Clomipramine and Paroxetine-Selective Membrane Sensors and their Applications in Pharmaceutical Analysis", Analytical and Bioanalytical Electrochemistry, 2011. Abstract

Selective electrodes based on the reineckate drugs ion pairs in a polyvinyl chloride (PVC) matrix membrane is proposed for the determination of clomipramine (CLO) and paroxetine (PRX) hydrochlorides. The ion-pair complexes of drug cations with reineckate anion are either dissolved in tetrahydrofuran solvent or dispersed in a PVC matrix, with dioctylphthalate or dioctyl sebacat plasticizers, and used as the ion-exchange membranes. The electrochemical response characteristics of electrodes incorporating these types of membranes are evaluated with regard to the effect of pH, foreign basic compounds, effect of soaking time and lifespan. A well defined internal electrode potential was achieved using Ag/AgCl disc in contact with the ion-pair electroactive membrane phase. The electrodes display a stable fast Nernstian response in the concentration ranges 10-2-10-7 mol L-1 for the two drug cations over the pH range 2-5, a short static response time less than 60s and response remain stable for at least 6 weeks. The lower limit of detection was 10-7 mol L-1 for both drugs. Determination of as low as 8 ?g mL-1 of drugs hydrochloride shows an average recovery of 98.75 and 100.6% and a mean standard deviation of 0.70 and 0.35 for CLO and PRX drugs, respectively. Selectivity coefficients for CLO and PRX drugs relative to a numbers of potential interfering substances were investigated. The electrodes exhibit useful analytical characteristics for determining CLO and PRX in some illicit powders. The results agree fairly well with those obtained by gas-liquid chromatography. The proposed electrodes are simple easy to construct and behave as symmetric ion selective electrodes (ISEs).

Naoum, M. M., A. A. Fahmi, A. A. Refaie, and M. A. Alaasar, "Novel hydrogen-bonded Angular Supramolecular Liquid Crystals", Liquid Crystals, 2011. Abstract

Two types of new pyridine-based azo dyes, namely, 4-(3-pyridylazo)-4-alkoxybenzoates with various alkoxychains and 4-(3-pyridylazo)-4-substituted benzoates bearing groups of different polarities, were prepared andinvestigated for their mesophase behaviour by differential scanning calorimetry and polarised light microscopy. Allhomologues of the former group were found to be mesomorphic, while all derivatives of the latter are non-mesomorphic. The structures of compounds prepared were confirmed via elemental analyses, IR, 1H-NMR and massspectra. Four types of angular 1:1 hydrogen-bonded supramolecular complexes were prepared via hydrogen-bondformation between each of the pyridine-based derivatives and two types of benzoic acids, namely, 4-alkoxy and4-substituted benzoic acids. The latter bear the polar groups (CH3O, CH3, Br and NO2) in addition to benzoicacid. Complexes were similarly investigated and it was found that three of them are mesomorphic while the fourthis not. The formation of 1:1 hydrogen-bonded supramolecular liquid crystals complexes was confirmed by FTIR spectroscopy.

Ahmed, M. A., S. M. Selim, and M. M. Arman, "Novel Multiferroic La0", Materials Chemistry and Physics, 2011. Abstract

A series of La1-xSbxFeO3 was prepared using the conventional solid state method. XRD revealed the formation of the orthorhombic structure with space group Pbnm. The data showed that, the molar magnetic susceptibility and coercive field Hc were increased from 9.16x10-3 to 26.9x10-3 emu/g.mole and 1196 to 5465 Oe from for LaFeO3 to La0.95Sb0.05FeO3 respectively. The coercive field (HC) of the sample with x= 0.05 increased 6 times than that of the parent LaFeO3 and the saturation magnetization (Ms) was increased from 0.1614 emu/g for the parent LaFeO3 to 0.2654 emu/g for the doped sample. The dielectric constant (e/) was increased with increasing the Sb+3 content. The ac conductivity (?) increases from 2.36x10-3 W-1.m-1 for the LaFeO3 to 30x10-3 W-1.m-1 for the sample La0.95Sb0.05FeO3 at T = 553 K and frequency 1MHz. The sample La0.95Sb0.05FeO3 is concluded to be a novel single phase multiferroic material

Ghani, N. A. T., and A. M. Mansour, "Novel Pd (II) and Pt (II) Complexes of N,N-Donor Benzimidazole Ligand: Synthesis, Spectral, Electrochemical, DFT Studies and Evaluation of Biological Activity", Inorganica chimica acta 373: 249, 2011. Abstract

(1H-benzimidazol-2-ylmethyl)-(4-nitro-phenyl)-amine (L) and its Pd(II) and Pt(II) complexes have been synthesized as potential anticancer compounds and their structures were elucidated using a variety of physico-chemical techniques. The activation thermodynamic parameters were calculated using non-isothermal methods. Theoretical calculations invoking geometry optimization, charge distribution and molecular orbital description HOMO and LUMO were done using density functional theory.

Gaber, H. M., M. C. Bagley, S. M. Sherif, and M. A. Sayed, "Novel Phenylazo Derivatives of Condensed and Uncondensed ThiopheneSynthesis, Characterization, and Antimicrobial Studies", Z. Naturforsch. 66b: 585 , 2011. Abstract

Two novel series of monocyclic and tricyclic 5-(phenylazo)thiophene systems were synthesized based on 3-amino-2-thioxopyrimidinone and 2-cyanoacetamidothiophene derivatives 4 and 6. Functionalization of the pyrimidine ring in precursor 4 resulted in the formation of the target tricyclic condensed thiophenes 7, 12, and 13a,b, by the application of a variety of addition, substitution, and condensation reactions.

Shams, H. Z., R. M. Mohareb, M. H. Helal, and A. E. Mahmoud, "Novel Synthesis and Antitumor Evaluation of Polyfunctionally Substituted Heterocyclic Compounds Derived from 2-Cyano-N -(3-cyano-4,5,6,7-tetrahydrobenzo[ b]thiophen-2-yl)-acetamide", Molecules, 2011. Abstract

The reaction of 2-amino-3-cyano-4,5,6,7-tetrahydrobenzo[ b]thiophene with ethylcyanoacetate gave 2-cyano-N-(3-cyano-4,5,6,7-tetrahydrobenzo[ b]thiophen-2-yl)-acetamide. The latter was used to synthesize different he terocyclic derivatives comprising thiophene,thiazole, pyrazole, pyridine, pyrimidine, and c oumarin rings. The mechanistic and syntheticpathways depended on regioselective attack and/or cyclization by the cyanoacetamidomoiety in the key precursor on various chemical reagents.

Mohareb, R. M., and A. abou Elkair, "Novel Synthesis of Hydrazide-Hydrazone and their uses for the Synthesis 1,3,4-Oxadiazine, 1,2,4-Triazine, Pyrazole and Pyridazine Derivatives with Antimicrobial and Antifungal Activities", International J. of Applied Biology and Pharm.Technology, 2011. Abstract

The reaction of the cyanoacetylhydrazine (1) with ?-bromoketones (2a-c) gave the hydrazide-hydrazone derivatives 3a-c. The latter compounds underwent ready cyclization when heated in sodium ethoxide to form the 1,3,4-oxadiazine derivatives 4a-c. The reaction of 3a with hydrazines gave the 1,3,4-triazine derivatives 7a,b. Compounds 3a-c and 7a,b underwent some heterocyclizations when treated with some reagents to afford coumarin, 1,2,4-triazine, pyridazine and pyrazole derivatives. The antimicrobial and antifungal activities of the newly synthesized products were measured which showed that most of have high activities.

wi th Activity, T. D. A., "Novel Synthesis of Hydrazide-Hydrazone Derivatives and TheirUtilization in the Synthesis of Co umarin, Pyridine, Thiazole and", Rafat M. Mohareb, 2011. Abstract

Molecules, 16: 16-27(2011) IF: 1.988

Abdelrazek, F. M., A. A. Fadda, and A. N. Elsayed, "A Novel Synthesis of Some New Pyridazine and Pyridazino[4,5-d]Pyridazine Derivatives", Synthetic Communications, 2011. Abstract

Phenacyl-malononitrile derivatives 1a,b react with dimethylformamide dimethylacetal (DMFDMA) in refluxing toluene to afford the enaminones 2a,b respectively. Compounds 2a and 2b react with the hydrazine hydrate 3a and phenyl hydrazine 3b in refluxing ethanol to afford the pyridazine

Amarnath, D., S. Wakayama, J. Zhu, A. R. Moawad, T. Wakayama, and K. H. S. Campbell, "The Novel use of Modified Pig Zygotic Medium for the Efficient Culture of the Preimplantation Mouse Embryos", Theriogenology, 2011.
Ahmed, M. A., N. Okasha, and S. I. El-dek, "Novelty, Preparation, Characterization and Enhancement of Magnetic Properties of Mn Nanoferrites using Safety Binder (egg white)", Solid State Sciences 13: 1840-1843(2011) IF: 1.828, 2011. Abstract

Nanocrystalline MnFe2O4 ferrite was prepared by using autocombustion technique (flash). Themicrostructure and magnetic properties are studied. The results of XRD and TEM clarified that, this ferrite isnanosized with particle size (39 nm). Magnetic measurements showed a ferromagnetic behavior with TC = 613 K, the saturation magnetization Ms = 13.71 emu/g

Amarnath, D., I. Choi, A. R. Moawad, T. Wakayamaand, and K. H. S. Campbell, "Nuclear", Reproduction, 2011.
Hassaneen, K. S. A., H. M. Abo-Elsebaa, and S. E. A. H. M. M. Mansour, "Nuclear Binding Energy and Symmetry Energy of Nuclear Matter eith Modern Nucleon-Nucleon Potentials", Annals of Physics, 2011.
Abu-Ibrahim, B., "Nucleus-Nucleus Total Reaction Cross Sections and the Nuclear Interaction Radius", Phys Rev C, 2011. Abstract

We study the nucleus-nucleus total reaction cross sections for stable nuclei, in the energy region from 30AMeVto about 1A GeV, and find them to be in proportion to

Sweilam, N. H., and A. M. Nagy, "Numerical Solution of Fractional Wave Equation using Crank-Nicholson Method", World Applied Sciences Journal, 2011. Abstract

In this paper, Crank-Nicholson method for solving fractional wave equation is considered. The stability and consistency of the method are discussed by means of Greschgorin theorem and using the stability matrix analysis. Numerical solutions of some wave fractional partial differential equation models are presented. The results obtained are compared to exact solutions.

Sweilam, N. H., M. M. Khader, and F. M. Atlan, "Numerical Studies for Singularly Perturbed Convection Reaction DiffusionProblems in Two Dimensions", Research Journal of Mathematics and Statistics, 2011. Abstract

In this study, we study the numerical solutions of singularly perturbed convection-reaction-diffusionproblem over a square. Two different approaches are used to study the problem namely: Finite Element Method (FEM) based on a posteriori error estimate, and Variational Iteration Method (VIM). In this study, we use theadaptive h-refinement based on the a posteriori error estimate. Numerical simulation for the solution of theproposed problem using FEM and VIM is given. From this simulation we can found that the finite elementmethod gives the solution with excellent agreement compared with the exact solution. Also, it's found that VIMis invalid for some values of the perturbed parameter g, but FEM overcome on this shortcoming.

EL-SHEMY, H. A., "Nutritional Value of Soybean Meal", InTech, 2011. Abstract

Protein feeds in the European Union (EU) cover only 25% demand for protein, what oblige the particular members to import feeds with a high protein content, where the main place have soybean meal. The share of this feed in total quantity of feeds utilization in EU is about 9%. Yearly consumption of soybean meal in EU is about 32mln ton, from what 5.6% it falls on Poland (Rynek Pasz, 2010). Poland, as another countries, is importer of protein feeds, mainly soybean meal.

Abdel-Gawad, H. I., "On Multiperiodic and Multisoliton Solutions Toevolution Equations with Applications", Eur. Phys. J. Plus, 2011. Abstract

The existence of multiperiodic and multisoliton solutions for parabolic one-dimensional scalarand vector equations is studied. It is shown that these solutions exist for a scalar equation if it is completelyintegrable and linearizable, while they exist for vector equations when they are completely integrable. Thegeometric structure of the solutions is similar to that of multidimensional equations. As applications, vector