Genus Salix is among family Salicaceae, distributing in the northern hemisphere. It is represented in Egypt by two species (Salix mucronata and Salix tetrasperma). The classification of Salix at the generic and infra-generic levels is still outstanding. We have agreed to list the Egyptian species of this genus. We collected them during field trips to most Egyptian habitats; fresh and herbarium specimens were subjected to taxonomic revision based on morphological characters; scanning electron microscope (SEM) for pollen grains; isozyme analysis using esterase and peroxidase enzymes and genetic diversity using random amplified polymorphic DNA (RAPD). We recorded that both sexes of S. mucronata existed but there were only male trees from S. tetrasperma. SEM of pollen grain revealed that there were many differences between them. Also, the application of isozyme analysis giving 12 sex indicating bands. In addition, ten RAPD primers retrieved a total of 227 amplified bands (77 for female S. mucronata, 74 for male S. mucronata and 76 for male S. tetrasperma).
The purpose of this research is to demonstrate the effectiveness of a program to address the problem of mixing similar letters in the Arabic language for students in the second grade of primary and to achieve the goal of the research. The researcher followed the experimental method to suit the nature of this research and found that there are statistically significant differences between the tribal and remote tests, The effectiveness of the proposed educational program. At the end of the research, the researcher recommends several recommendations, the most important of which are: 1 - Training students to correct pronunciation of the outlets, especially in the first three stages of primary education (primary) and the use of direct training
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At the conclusion of my research for this readiness, I am ready to show the most important results I have reached, of which I can mention the most important:
Sheikh Al-Safti was a memorizer and jurist, and all the scientific strokes that he left behind for subsequent generations were in the disciplines of Hanafi jurisprudence, and this does not obscure the opinions of the jurists of other schools of thought. But among them: that these lines continue on a group of fatwas for the later in the gold of Abu Hanifa, may God have mercy on him, and then the books of fatwas usually refer to what is below the evidence.
He has no shock other than the knowledge of jurisprudence; And for this reason, it is due to the fact that the s
... Show MoreThe over mentioned subject is considered most important subject hugely being concerned over , since it provides sensual experiences that hardly be fulfilled under the natural conditions of teaching experience; besides , it could surpass obstacles that impede the process of explanation if only depending on the reality. By this means , it could merge more than one sense to get the information to the students 'mind
العلاقات السياسية بين الوطن العربي وفرنسا
موسيقى الشعر العربي بين الطبع والصنعة
العلاقة بين السلطات الثلاث والدستور العراقي
يتناول البحث تعليم اللغة العربية وما لها من أثر بين التراث والمعاصرة إذ يعُد مقياس رقي أي مجتمع من المجتمعات مقدار عنايته بلغته القومية ، فهي وسيلته واداته للتفاهم في مواجهة المواقف المختلفة التي تتطلب الكلام ، والاستماع ، والقراءة ، والكتابة ، هي دلالة تحضره وتقدمه في احواله المختلفة ، وهي الشرط الاساس في بقائه ونمائه ، فبدونها يغيب موضوع الحديث عن مفهوم المجتمع القومي لاي شعب من الشعوب ..
If the text has a writer, then he also has a reader who is multiple in his readings, interpretations and understanding of the text, in addition to that he is still in contradiction to researchers in what is the ideal reader o
La literatura española nos ofrece una serie muy extensa de poetas y escritoires ,precisamente en el prencipio del pasado, que tienen una influencia muy grande en cambiar el senedor de la idíologia común de entonces.Todos aquellos laboran para formar un hecho español puro que tiene sus carácteristicas nacionales peculiars utilizando el espíritu de los antecesores clasicistas mezclando con lo local modernizado.
The research aims at identify the role of the electronic trading system used in the Iraq stock exchange to promote trading activity for the stocks of listed companies in this market.
To prove the hypothesis of research, it was selected the main trading indicators for the market to be a main field in test the research hypothesis.it was selected as the period of time for (9)years span between the years (2005-2013) because they represent the first two articles of equal time periods represent aperiod that preceded the introduction of electronic trading system while the second represents the period of time that followed
The research found a number of conclusions but the mo
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