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Mohareb, R. M., and J. Schatz, "Anti-tumor and Anti-Leishmanial Evaluations of 1,3,4-Oxadiazine, Pyran Derivatives Derived from Cross-Coupling Reactions of B -Bromo-6 H-1,3,4-Oxadiazine Derivatives", Bioorganic & Medicinal Chemistry, 2011. Abstract

Cyanoacetylhydrazine reacted with thex-bromoacetophenones 2a,b to give hydrazide-hydrazone deriv-atives 3a,b . The latter products were cyclized to the 1,3,4-oxadiazine derivatives 4a,b . Bromination of the latter products gave the 6-bromo-6H -1,3,4-oxadiazine derivatives 5a,b which underwent a series of cross-coupling reactions. The antitumor evaluation of the newly synthesized products against the three cancer cells namely breast adenocarcinoma (MCF-7), non-small cell lung cancer (NCI-H460) and CNS can-cer (SF-268) showed that some of them have high inhibitory effect towards three cell lines which is higher than the standard. Moreover, the anti-leishmanial activity of the newly synthesized product was tested onLeishmania donovani amastigotes showed that some compounds have high activity.

Abdallah, M. A., T. A. Farghaly, and M. A. M. A. andZienab Muhammad, "Anti-Alzheimer Activity of Novel 1,3,4-Thiadiazole Derivatives", World journal of chemistry, vol. 6, issue 2, pp. 96-106, 2011. AbstractCU-PDF.pdf

The reaction of the new enaminone 2 with ?-ketohydrazonoyl chlorides 3 afforded 5-(pyrazol-4-yl)-carbonyl-2-benzoylimino-1,3,4-thiadiazoles 5. Treatment of 5a with hydrazine hydrate led to formation of pyrazolo[3,4-d]pyridazine derivatives 8. The reaction of enaminone 2 with 6-amino-2-thioxopyrimidin-4-one 9 in acetic acid under reflux produced 2-thioxopyridopyrimidinone derivative 10. The latter compound or its methylthio derivative 15 reacts with hydrazonoyl chlorides 3 to give pyridotriazolopyrimidine derivatives 14. The newly synthesized compounds 2, 5, 8 and 14 were tested for their anti-alzheimer activity, and the results which obtained revealed their potency as drugs for Alzheimer disease.

Schroeder, S., P. S. Muether, A. Caramoy, M. Hahn, M. Abdel-Salam, M. Diestelhorst, B. Kirchhof, and S. Fauser, "Anterior Chamber Aqueous Flare Is A Strong Predictor For Proliferative Vitreoretinopathy In Patients With Rhegmatogenous Retinal Detachment", Retina, 2011. AbstractCU-PDF.pdf

Purpose: To investigate preoperative aqueous flare as a predictive factor for proliferative vitreoretinopathy (PVR) redetachment in patients with rhegmatogenous retinal detachment.

Dakrory, A. I., and A. K. Hussei, "Anatomical Studies on The Cranial Nerves of Mugil cephalus (Family : Mugilidae) Nervus Vagus", Australian Journal of Basic and Applied Sciences, vol. 5(12), pp. 60-74, 2011. AbstractCU-PDF.pdf

Through the jugular foramen.The intracranial dorsal vagal ramus arises from the vagal root and enters its own ganglion. It anastomoses with the posterior lateral line nerve.The vagus nerve divides into three branchial trunks and a truncus visceralis.Each branchial vagal trunk has an epibranchial ganglion. Distal to the ganglion each trunk branches into rami pharyngeus, anterior and posterior pretrematic and a posttrematic. The first branchial vagal trunk anastomoses with the vagal sympathetic ganglion.The nervus vagus carries general somatic sensory fibres to the skin, general viscerosensory fibres to the pharyngeal epithelium, special viscerosensory fibres to the gill rackers and the taste buds and visceromotor fibres to the levators and the adductor arcuales branchiales and the obliquus ventrales muscles of the second, third and fourth holobranchs and transversus dorsalis and ventralis muscles.In addition it also carries vegetative fibres (parasympathetic) for the blood vessels and the muscles of the gill filaments.

Mohamed, G. G., F. A. M. Attia, N. S. Ismail, and N. S. Ibrahim, "Analytical uses of charge-transfer complexes: determination of dosage forms of desloratadine", Acta Pharmaceutica Sciencia, 2011.
Tantawy, S. T. A., "Amelioration of Salinity Effect in Zea Mays (Single Cross 124) by Cynaobacterial Extracellular Products", j. food agriculture& Environment, vol. 9, issue 2, pp. 714-717, 2011. AbstractCU-PDF.pdf


Abdou, E., M. Elsabee, and S. Elkholy, "The Amazing Materials Chitin and Chitosan", LAP LAMBERT Academic Publishing GmbH & Co. KG, 2011. AbstractCU-PDF.pdf

Plastic products have gained universal uses not only in food, clothing and shelter, but also in the transportation, construction, medical and leisure industries. There is a growing demand for biobased and biodegradable polymers as a solution to problems concerning the energy resources, the global environment and the solid waste management. Research on biobased and biodegradable plastics and polymers has been carried out worldwide with the aim of achieving a balance between human activities and the natural environments.

Mohamed, A. A., F. K. El-Baz, S. I. Ali, M. M. Saker, and A. K. Hegazy, "Alteration of Protein Patterns in Callus Cultures of Citrullus Colocynthis in Relation to Plant Growth Regulators", Insight Biotechnology, vol. 1, issue 1, 2011. AbstractCU-PDF.pdf

Callus and cell culture could not only be an alternate continue source of proteins, but could also be a useful and important model system to study their regulation and biosynthesis so, the present study aimed to investigate the effect of different combinations of 2,4 dichlorophenoxy acetic acid (2, 4-D) with kinetin (kin) and Benzyl Adenine (BA) with ?-Naphthalene Acetic Acid (NAA) on: (1) the percentage of callus frequency and (2) protein profiles of Citrulluscolocynthis stems, leaves and roots derived callus cultures. The present results reported that the highest percentage of callus frequency (98.9%) was obtained from stem callus grown on MS media supplemented with (1.0 mg L-1) 2, 4-D + (1.0 mg L-1) kin. Sodium Dodecyl Sulfate (SDS) Polyacrylamide Gel Electrophoresis (PAGE) analysis of total soluble protein revealed expression of new protein band (65 kDa) only in stem derived callus cultured on MS media supplemented with (6.0 mg L-1) 2, 4-D + (2.0 mg L-1) kin. Leaf derived callus cultured on MS media supplemented with (2.0 mg L-1) 2, 4-D + (1.0 mg L-1) kin showed new protein bands with molecular weight 112 kDa. Moreover, the root derived callus revealed expression of new protein band (82 kDa) with MS media supplemented with(6.0 mg L-1) 2, 4-D + (2.0 mg L-1) kin. However, MS media supplemented with (0.01 mg L-1) BA + (1.0 mg L-1) NAA exhibit new protein band (72 kDa) in the root derived callus.

Abdel-Rahim, E. A., and H. S. El-Beltagi, "Alleviation of Hyperlipidemia in Hypercholesterolemic Rats by Lentil Seeds and Apple as Well As Parsley in Semi-Modified Diets", Advances in Food Sciences, 2011. AbstractCU-PDF.pdf

The study was carried out to evaluate the effects of unpeeled lentil seeds, apple and parsley in semi-modified diets on lipid fractions of hyperlipidemic and hypercholesterolemic male albino rats. Blood lipid fractions of hyperlipidemic animals were improved by the antioxidant and protein lipotropic powers of diets used to protect animals from oxidation and precipitations on the walls of the blood vessel, thus alleviating atherosclerosis. The treatments with semi-modified diets improved the lipid fractions, such as total lipids, cholesterol and triglycerides, as well as HDLC, LDL-C and VLDL-C, but also alleviated the risk factor of the hyperlipidemic rats. Total protein and its fractions (albumin, and globulin), lipids` peroxidation and antioxidative enzymes` activity (SOD and CAT) were readjusted around the normal values in hyperlipidemic and hypercholesterolemic rats by the improvements of the present lipotropic factors and antioxidative agents in unpeeled lentil, apple and parsley by which hyperlipidemia and hypercholesterolemia were alleviated.

Shalaby, E. A., "Algal Biomass and Biodiesel Production", Biodiesel-Feedstock, 2011. AbstractCU-PDF.pdf

Biodiesel has become more attractive recently because of its environmental benefits and the fact that it is made from renewable resources. The cost of biodiesel, however, is the main hurdle to commercialization of the product.The used cooking oil and algae are used as raw material, adaption of continuous transesterification process and recovery of high quality glycerol from biodiesel by-product (glycerol) are primary options to be considered to lower the cost of biodiesel.

El-Metwally, M., S. C. Alfaro, A. M. M. Wahab, O. Favez, Z. Mohamed, and B. Chatenet, "Aerosol Properties and Associated Radiative Effects Over Cairo (Egypt)", Journal of atmospheric Research, vol. 99, pp. 236-276, 2011. AbstractCU-PDF.pdf

Cairo is one of the largest megacities in the World and the particle load of its atmosphere is known to be particularly important. In this work we aim at assessing the temporal variability of the aerosol's characteristics and the magnitude of its impacts on the transfer of solar radiation. For this we use the level 2 quality assured products obtained by inversion of the instantaneous AERONET sunphotometer measurements performed in Cairo during the Cairo Aerosol Characterization Experiment (CACHE), which lasted from the end of October 2004 to the end of March 2006. The analysis of the temporal variation of the aerosol's optical depth (AOD) and spectral dependence suggests that the aerosol is generally a mixture of at least 3 main components differing in composition and size. This is confirmed by the detailed analysis of the monthly-averaged size distributions and associated optical properties (single scattering albedo and asymmetry parameter). The components of the aerosol are found to be 1) a highly absorbing background aerosol produced by daily activities (traffic, industry), 2) an additional, ‘pollution’ component produced by the burning of agricultural wastes in the Nile delta, and 3) a coarse desert dust component. In July, an enhancement of the accumulation mode is observed due to the atmospheric stability favoring its building up and possibly to secondary aerosols being produced by active photochemistry. More generally, the time variability of the aerosol's characteristics is due to the combined effects of meteorological factors and seasonal production processes. Because of the large values of the AOD achieved during the desert dust and biomass burning.

Ismail, M., M. M. Osman, and H. Elgebaly, "The Accuracy of Neglecting the S-Dependence and its Effect on the Exchange Parts of α–α Interaction Potential", Australian Journal of Basic and Applied Sciences, vol. 5(11), pp. 120-125, 2011. AbstractCU-PDF.pdf


Hegazy, A. K., and M. H. Emam, "Accumulation and Soil-to-Plant Transfer of Radionuclides in the Nile Delta Coastal Black Sand Habitats", International Journal of Phytoremediation, vol. 13, issue 2, pp. 140-55, 2011. AbstractCU-PDF.pdf

The radionuclide content was estimated in the soil of three black sand habitats in theMediterranean coast of Egypt, namely, sand mounds and coastal sand planes and dunes. Inaddition, a total of 14 heavy minerals found in the soils were characterized. The soil to planttransfer of uranium and thorium was tested on three black sand species, namely, Cakile maritimaScop. Senecioglaucus L. and RumexPictusForssk. The transfer of thoriumand uranium radionuclides from the soil to plant is complex process that is subjected tomany variables; among which are the organic matter and clay content of the soil, the type ofradionuclides and plant species. The study revealed a strong negative relationship betweenuranium and thorium uptake by S. glaucus and R. pictus and the clay and organic mattercontent of soil. Concentration of thorium in the soil has a negative correlation with soil-toplanttransfer factor. The study results suggest the possibility of using black sand speciesfor phytoremediation of soils contaminated with radioactive elements. The potentiality of S.glaucus as phytoremediator of radionuclides polluted soils is greater than R. pictus whichin turn outweigh C. maritima.

Tawfik, A., A. Saleh, M. T. Ghoneim, and A. A. Hady, "Acceleration and Particle Field Interactions of Cosmic Rays: Formalism", Physics International, 2012. Abstract

The acceleration of ultra high energy cosmic rays is conjectured to occur through various interactions with the electromagnetic fields in different astrophysical objects, like magnetic matter clumps, besides the well-known shock and stochastic Fermi mechanisms. It is apparent that the latter are not depending on the particle's charge, quantitatively. Based on this model, a considerable portion of the dynamics, that derives a charged particle parallel to a magnetic field and under the influence of a force, is assumed to be composed of an acceleration by a non- magnetic force and a gyromotion along direction, plus drifts in the direction of The model and its formalism are introduced. Various examples for drift motions and accelerating forces are suggested. The formalism is given in a non-relativistic version. Obviously, the translation into the relativistic version is standard. In a forthcoming work, a quantitative estimation of the energy gained by charged cosmic rays in various astrophysical objects will be evaluated.

Afify, A. E. - M. M. R., H. S. El-Beltagi, S. A. Fayed, and E. A. and Shalaby, "Acaricidal Activity of Different Extracts from Syzygium Cumini L. Skeels (Pomposia) Against Tetranychus Urticae Koch", Asian Pacific Journal of Tropical Biomedicine, pp. 359-364, 2011. CU-PDF
Shaker, R. M., K. U. Sadek, E. A. Hafez, and M. AbdElrady, "5-Aminouracil as A Building Block in Heterocyclic Synthesis: Part IV", Zeitschrift for Naturforschung, vol. 66, pp. 843-849, 2011. AbstractCU-PDF.pdf