عبارة مكتوبة في جامعة هارفارد: تقول : "ألم الدراسة لحظة وتنتهي لكن إهمالها ألم يستمر مدى الحياة" .

وقال قبلهم الامام الشافعي: "من لم يذق مر التعلم ساعةً، تجرع ذل الجهل طول حياته ".

اعلان

سبت, 02/25/2017 - 21:30
المزيد
An in-depth treatment of various aspects of organic synthesis. This will include such topics as oxidation and reduction, reaction and mechanism, synthetic strategies, rearrangements, a detailed…
The objective of the course is to give the studens basic knowledge within natural product chemistry, including the distribution of selected secondary metabolites, their biosynthesis and…
The antipyretic activity of the alcoholic extracts for the Tamarix aucheriana, T. nilotica, and T. aphylla were measured in the Wistar albino male rats (150-180 g) by using a yeast-induced…
  An Achillea fragrantissima extract for treating chronic myeloid leukemia cells is made by the following steps: washing a mass of Achillea fragrantissima leaves and…

المدونات

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