هدفت الدراسة الى التعرف على مستوى استخدام إدارة المعرفة و تكنولوجيا المعلومات لدى القيادات الإدارية تُعدّ لعبة الإسكواش من الألعاب الفردية، وواحدة من ألعاب المضرب، والتي تمتاز بالسرعة والحركة الدائمة في داخل القاعة، ولعل أهم ما يميز هذه اللعبة المتعة التي يشعر بها اللاعبون الممارسون لها، لأنها تجبر ممارسيها على الحركة المستمرة عن طريق تبادل لعب الكرة، وتتميز بالتحدي المباشر، وتتطلب اليقظة والحرص والتوقع الصحيح من قبل اللاعب، في مجاراة المنافس في أثناء تبادل لعب الكرة, وان مهارة (Nick shot)هي من المهارات المتطورة في لعبة الإسكواش، التي تم تطويرها واستحداثها من المهارات الأساس في لعبة الإسكواش من قبل ممارسي اللعبة المحترفين والمدربين، من أجل الحصول أو الوصول إلى مهارة تصعب على المنافس رد الكرة، ومن ثم الحصول على نقطة بأقل جهد ممكن، وتم استخدام المنهج الوصفي ليلائم طبيعة البحث، وتم اختيار العينة بطريق العمد، وهم لاعبو المنتخب العراقي، والمنتخب والمصري للشباب، المشاركون في البطولة العربية (25)، وعددهم (8) لاعبين، وبعد إجراء التجربة الاستطلاعية، وتحديد بعض المتغيرات الكينماتيكية، وإجراء التجربة الرئيسة لأداء (المهارة المنتهية الأمامية العكسية)،تم استخراج النتائج التي تبين، وجود فروق ذات دلالة إحصائية لصالح لاعبي المنتخب المصري للشباب، وبذلك حقق الباحث فرض البحث، وتوصل الباحث إلى الاستنتاجات، ووصى ببعض التوصيات.
The comparison of double informative priors which are assumed for the reliability function of Pareto type I distribution. To estimate the reliability function of Pareto type I distribution by using Bayes estimation, will be used two different kind of information in the Bayes estimation; two different priors have been selected for the parameter of Pareto type I distribution . Assuming distribution of three double prior’s chi- gamma squared distribution, gamma - erlang distribution, and erlang- exponential distribution as double priors. The results of the derivaties of these estimators under the squared error loss function with two different double priors. Using the simulation technique, to compare the performance for
... Show MoreTransportation problems are considered as a type of operation research problems. In fact, they deal with scheduling transportation of goods from their source to delivery sites in the minimum cost.
Such problems can be solved by the available traditional methods, which include; North-West corner, Least cost and Vogel’s method. As well as if this transportation problem is considered as a linear program it can also be solved by using Simplex method
The goal of the present study is to compare different research methods to provide the optimal and minimum cost.
This study was applied to resolve a transportation problem related to land Transportation Company, w
... Show Moreهدفت الدراسة إلى التعرف على إدارة الحكمة والازدهار التنظيمي وفاعلية القرارات الاستراتيجية لدى اعضاء مجالس كليات التربية البدنية وعلوم الرياضة في جامعات العراق ، والتعرف على العلاقة بين ادارة الحكمة والازدهار التنظيمي وفاعلية القرارات الاستراتيجية لدى اعضاء مجالس كليات التربية البدنية وعلوم الرياضة في جامعات العراق ، التعرف على الفروق وفقا لمتغير اللقب العلمي (استاذ- استاذ مساعد) وسنوات الخدمة لأعضاء مجا
... Show MoreThe study examines Julia Alvarez's role as a Dominican American author, poet, and essayist. Despite being born in New York City in 1950, she was raised in the Dominican Republic by a family with Dominican heritage. Her residence in her ancestral homeland significantly influenced her subsequent literary works. Upon her father's implication in a conspiracy against Dominican President, he departed from the Dominican Republic. Alvarez encountered the challenge of the English language. They were compelled to acquire proficiency in English due to the prevailing perception that anyone who spoke a language other than English were deemed "un-American" during that period. Alvarez recounted her initial encounters in the United States and the subseque
... Show Moreالمستودع الرقمي العراقي. مركز المعلومات الرقمية التابع لمكتبة العتبة العباسية المقدسة
The ability of beans (Phaseolus vulgaris L.) to uptake three pharmaceuticals (diclofenac, mefenamic acid and metronidazole) from two types of soil (clay and sandy soil) was investigated in this study to explore the human exposure to these pharmaceuticals via the consumption of beans. A pot experiment was conducted with beans plants which were grown in two types of soil for six weeks under controlled conditions. During the experiment period, the soil pore water was collected weekly and the concentrations of the test compounds in soil pore water as well as in plant organs (roots, stems and leaves) were weekly determined.
The results showed that the studied pharmaceuticals were detected in all plant tissues; their concentration
A simple setup of random number generator is proposed. The random number generation is based on the shot-noise fluctuations in a p-i-n photodiode. These fluctuations that are defined as shot noise are based on a stationary random process whose statistical properties reflect Poisson statistics associated with photon streams. It has its origin in the quantum nature of light and it is related to vacuum fluctuations. Two photodiodes were used and their shot noise fluctuations were subtracted. The difference was applied to a comparator to obtain the random sequence.
The problem of the research lies in finding aiding means that improve and facilitate learning artistic skills during the main part of a teaching sessions due to their great importance in developing the accuracy of forehand and backhand skills in tennis. Players are usually faced with difficulties at the beginning of learning due to lack of coordination in ball striking thus including a teaching aid will have a positive effect on learning some forehand and backhand skills. The research aimed at designing exercises using teaching aid in tennis as well as identifying the effect of these exercises on the accuracy of performing forehand and backhand shots in tennis. The researcher used the experimental method on (38) tennis players from Al Zewra
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