السطح الكروي (Spherical Surface) السطح الكروي هو سطح منحني جزء من كرة . يسمى السطح الكروي محدب (convex surface) اذا كان مركز التكور له على اليمين ، ويسمى السطح الكروي مقعر(concave surface) اذا كان مركز التكور له على اليسار كما في الشكل (1) . السطح الكروي الذي يفصل وسطين شفافين له خاصية تجميع او تفريق الاشعة الضوئية المنكسره عليه نتيجة قوانين الانكسار ، وتطبيق قانون سنيل على السطح الكروي باستخدام العمود المقام على مماس النقطة التي يحدث

Origination for Teaching Physics at Secondary Stage main of the Educational Aims

تدور فكرة هذا البحث عن كيفية خلق الله تعالى للعالم؟ 

Abstract : This research has tackled about the role of Russia in the international policies which concerning with energy , So the most important states in the world that possesses huge energy resources to be more able in the control over the reality and future production programs and the distribution of global energy alike , the latter had effectively influence on the economic and developmental aspects within many countries in the world and its impacts on political decisions and perhaps effected too much in the dimensions of strategic policies . In this context of research , Russia has been developed a high energy policy of strategic planning in order to restoring Russia position and its global role by using its potential powerful streng

تم ت داول مصطلح الأزمة ا دلولية في السياسية ا دلولية خال القرن التاسع عش ر لتحدي دا ملدة الانتقالية بين السلم والحرب سواء أ دت الأزمة إلى نشوب صراع مسلح أم مت ت ت سويتها بالطرق السلمية، وتع دالأزمة ا دلولية مرحلة مت هيدية ل لحرب وهي ا رملحلة التي يسعى فيها أ طرا فالأزمة إلى إبعاد احتمالية نشوء أ و اندلاع الحرب، فالأزمة ه ي مدة حرجة ومرحلة خطيرة بين وقتي السلم والحرب، إن العلاقات ا دلولية تكاد ت عيشأ زمات متلاحقة ع

Praise be to Allah, Lord of the Worlds, teach the pen, taught the human what he didn't know, Ihmad - Almighty - and thank him, and repent to him and ask forgiveness, which is the most forgiving, and bear witness that there is no god but Allah alone has no partner, gives and prevents, And I bear witness that Muhammad is  a slave to Allah  and his Messenger, who called for guidance and good speech and spoke, peace be upon him and his family and companions, and those who followed them until the Day of Judgment.

     تزداد أهمية وجود اللغة العربية على الشبكات الحاسوبية مع توجه المجتمع نحو مجتمع المعلومات, ونحو الاقتصاد المبني على المعرفة. ويصطلح عالمياً على هذا الوجود بكلمة المحتوى, فكيف يمكن أن نزيده

In her poetry, Carol Ann Duffy looks into the concerns of the disregarded and humiliated people. Approaching facts fearlessly and disclosing realities in a way highly characteristic of her, she establishes the world newly and reframes it honestly. This research shows how Duffy reframes the world in her own peculiar terms, starting with her own creative use of the language, in particular, when the forms of things of the world are distorted, thus our perception of things will be reframed too.
As regards relations among people, the research elucidates how Duffy’s strained characters abandon real life and reframe an eccentric way of living, while respecting faith, wherein Duffy notices that religious rituals confine the intellect, she r

         Continuous functions are novel concepts in topology. Many topologists contributed to the theory of continuous functions in topology. The present authors continued the study on continuous functions by utilizing the concept of gpα-closed sets in topology and introduced the concepts of weakly, subweakly and almost continuous functions. Further, the properties of these functions are established.

The problem of the research represented by knowing the approaches which presented by knowing the design guides and the design styles which the imitation products enter upon it to be able to competitor the other original products .The research aim was to comparison the design approaches of the functional performance and the utilizations for the imitation and the original products , however the research limits contained study products samples of the kitchen electric equipments which available in local markets of Baghdad city for the period (2000 – 2013) .After the view of research back for the subject fundamental basics and investigating research sample to be complete to a group of results and conclusions and the most marked of her were