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Assuming little or no previous knowledge of the language, Simple Arabic aims to make learning Arabic easy and enjoyable. Words used have been selected on a basis of frequency of usage in contemporary Arabic, and a comprehensive bilingual index will also be helpful for examinations, revision, or simply to refresh one s memory on specific points."

Five transition metal complexes of Ni(II), Cu(II), Zn(II), Cd(II) and Sn(II) with {4-amino-5-(pyridyl)-4H-1,2,4-triazole-3-thiol}, as a ligand (L) has been prepared in alcoholic medium.The photostabilization activity of these compounds was determined by monitoring the carbonyl and hydroxylindexes, weight loss method with irradiation time. It was found that these indexes values increased with irradiation time and this increase depend on the type of additives. The surface morphology for these films was studied during irradiation time. The changes in viscosity average molecular weight of PS with...