هدف البحث الحالي إلى عامل البخل المعرفي الذي يعد من العوامل التي تعطل الأفراد سعي الى الادراك المتمثل بالبيئة المادية والمعرفية والعالم المحيط بهم فهو يجعل الأفراد لا يرغبون في بذل المزيد من الجهد والوقت في التفكير والتحليل مما يؤدي الي معوقات في الإدراك، فالبخل المعرفي هو اعتماد الفرد الاختصارات العقلية والاستدلالات العقلية السريعة للحفاظ على الموارد العقلية عند التعامل مع المهام التي تتطلب في المقام الا

In cognitive radio system, the spectrum sensing has a major challenge in needing a sensing method, which has a high detection capability with reduced complexity. In this paper, a low-cost hybrid spectrum sensing method with an optimized detection performance based on energy and cyclostationary detectors is proposed. The method is designed such that at high signal-to-noise ratio SNR values, energy detector is used alone to perform the detection. At low SNR values, cyclostationary detector with reduced complexity may be employed to support the accurate detection. The complexity reduction is done in two ways: through reducing the number of sensing samples used in the autocorrelation process in the time domain and through using the Slid

اهمية البحث والحاجة اليه:

تعد الازمات التي تمر بها المجتمعات لفترات زمنية طويلة عاملاً مساعداً على تشكيل انسان تكون قيمه ومعتقداته وسلوكياته تختلف عما هو سائد في المجتمع ويعود سبب ذلك الى استمرار تعرض المجتمع لمزيد من الضغوط مما يجعل التنظيم الاجتماعي والنفسي يمر بحالة من الاضطراب (حسن، 1997، ص2) ، تظهر بصورة سلوك تملقي يمارسه الفرد للحصول على ما يريد وهذا ما بينه ابن خلدون في مقدمته ان من بين

All - Mighty Allah is beautiful and loves beauty and  Man is the only living  that is given by  the gift of Almighty Allah  the ability to awareness of beauty and the taste of  everything which recognized by him  around all aspects of life.

So the  children have more  ability  than others towards  feeling the  sense of beauty and the distinction between the beautiful and the ugly understanding , as they are attracted to the beauty , so we  should promote and encourage  their sense of beauty in future  the beauty in behavior , in psychology and in the community, as well.

This is definitely be done through all of

Identify the effect of an educational design according to the repulsive (allosteric) learning model on the achievement of chemistry and lateral thinking. The sample consisted of (59) students from third-grade intermediate students. They were randomly distributed into two groups (experimental and control), and the equivalence was done in (chronological age, previous achievement in chemistry, intelligence, lateral thinking). The (30) students from experimental group were taught according to the instructional design, other 29 students from the (control) group were taught according to the usual method. Two tests done, one of them is an achievement test consisted of (30) items of the type of multiple choice, the other was a lateral think

An idiom is a group of words whose meaning put together is different from the meaning of
individual words. English is a rich language when it comes to idioms, they represent variety. For
foreign learners, idioms are problematic because even if they know the meaning of individual
words that compose an idiom the meaning of it might be something completely different.
The present study investigates Iraqi third year college students’ recognition of idioms. To
achieve this, the researchers have conducted a test which comprises three questions. Certain
conclusions are reached here along with some suggestions and recommendations.