The method of powder technology has been utilized in fabrication of machinable
ceramics by the approach of glass-ceramic principles. The crystalline ceramic phases
partially dissolved by host glass while the undissolved part remain responsible for the
machinability by the usual cutting tools. Thus avoiding the unnecessary use of special
dies to cast fully melted composition and initiate recrystallization process. Two types of
machinable ceramics have been successfully prepared, the first with high silica content
and the other with high alumina content. A comparison of their properties and discussed.

The research aims to:

1. Show the effect of corporate governance on the quality performance of certified public accountants through establish the concept and principles of corporate governance and the concepts, importance, standards of quality auditing.
2. Forming a proposed framework for quality performance of certified public accountants under the corporate governance, which show the concepts objectives, principles, standards, and constraints of the proposed framework.

The research in one aspect of it based on the study of theoretical background which re which relate to the subject beside the global experiments and opinions of the specialists

- المقدمهIntroduction    

الخيارات أحدى الأدوات المالية المشتقة التي تشتق قيمتها من قيمة الموجود الأساسي
Underlying Asset، وقد يكون الموجود الأساسي سهما عاديا أو مؤشر أسهم أو عقد مستقبلية سلع أو عقد مستقبلية على أوراق المديونية . وبالرغم من أن الدلائل تشير إلى أن التعامل بالخيارات يعود إلى أوائل القرن السادس العشر الميلادي آلا انه ونتيجة للعديد من الابتكارات ال

Of the most prominent elements of the educational process in physical education is a curriculum decision, which is containing a number of elements, including the book Alorteurllmadp study and which must be characterized by a high level of quality is reflected on the nature of the scientific level that will excel by the students after them with knowledge about it and to identify the vocabulary and here emerged the idea and the importance of Find Considering researchers that the quality of the textbook of the article subjects of great importance in the delivery of educational material form the right and perhaps the most prominent subjects and most important for the students of Physical Education is a substance that teaching methods and so to

سجلت الدولة الجزائرية محاولتين من أجل التنمية، بهما أرادت القضاء على كل مخلفات الاستعمار الفرنسي، من فقر وجهل وأمراض وحرمان من أبسط ضرورات الحياة، كما عملت جاهدة على أن تكون دولة لها مكانة في صفوف الدول الصاعدة على الأقل، لما حباها الله من موارد مادية ومالية وبشرية، وموقع جيو استراتيجي، قلت مثيلة في العالم، بالنسبة لمساحتها الجغرافية الكبيرة وتنوع تضاريسها الطبيعية، وترتيبها المتقدم في الطا