تعد فعالية دفع الثقل واحده من الفعاليات المميزة بألعاب القوى، وهي أحدى فعاليات الرمي الأربعة (رمي الرمح, رمي القرص, أطاحة المطرقة, دفع الثقل) وتطلب قدرات بدنية وقابليات حركية خاصة والتي تعتمد بشكل فعَال ومؤثر على النواحي البايوميكانيكية, خصوصا عندما يتعلق الأمر بذوي الأعاقة ومنهم فئة (40f) والذين يتمتعون بدعم كبير من المجتمع الدولي بصورة عامة وفي بلدانهم بصورة خاصة وأمكانية تطوير أنجازاتهم لرفع أسم بلدانهم في المحافل الدولية. وتبرز أهمية البحث من خلال تحليل المسار الحركي لبطل العالم العراقي جراح نصار من خلال تحليل بعض المؤشرات البايوميكانيكية لمرحلة وضع القوة (تجهيز القوة) والتي تعتبر من اهم المراحل الفنية المؤثرة بالانجاز النهائي للاعبي دفع الثقل من الزحلقة أن كانوا أسوياء أم من ذوي الإعاقة.وتمحورت مشكلة البحث حول أهمية التعرف على القيم الرقمية للمؤشرات الميكانيكية لأبطالنا الذين حققوا كم من المداليات الملونة لوصف نتائجهم لمدربيهم وزملائهم للعمل على الوصول الى هذه الجزيئات وتطبيقها في تحسين الآداء الفني ورفع مستواهم أضافة الى أهمال الجانب البايوميكانيكي لهذه الفعالية من خلال عدم أستعمال التحليل الحركي والتعرف على نقاط الضعف بدقة عالية في فعالية سريعة لايتجاوز زمن المحاولة فيها الثانيتين أضافة الى عدم الاهتمام من قبل المدربين بخصائص قيم المؤشرات البايوميكانيكية المؤثرة في بعضها البعض لكي يبرمجوا برامجهم التدريبية بغية تحقيق أهدافهم بأسرع مايمكن وتوفيرا للجهد والوقت المبذول.وهدف البحث إلى التعرف على أهم المؤشرات البايوميكانيكية الخاصة بمرحلة وضع القوة وهي طول الخطوة لقدم الأرتكاز وزمن الخطوة لقدم الأرتكاز وسرعة الخطوة لقدم الأرتكاز وزاوية الأسناد وزاوية الدفع وزاوية اتجاه القدم الخلفية في وضع القوة والعلاقة بين هذه المؤشرات مع الإنجاز المتحقق للاعبي ذوي الاعاقة فئة (40f) بدفع الثقل.وأستعملت الباحثتان المنهج الوصفي والعلاقات الأرتباطية في دراستهما الحالية لملائمته طبيعة مشكلة الدراسة وتألف مجتمع البحث من لاعب المنتخب الوطني العراقي فئة (40f) (جراح نصار) أذ تم أخذه بالطريقة العمدية وأجري الأختبار له خلال معسكره التدريبي ببغداد في ملعب كلية التربية البدنية وعلوم الرياضة / الجادرية أستعدادا للبطولات الخارجية وتم أخذ ستة محاولات كما في السباقات الرسمية وتم أستعمال كامرتي تحليل نوع (CASIO FH13.5) بسرعة 120 لقطة بالثانية وتم أجراء عملية التحليل الحركي ببرنامجي التحليل Tracker)) و( Kenova ) أذ تم أستعمال برنامج Tracker)) لقياس المسافات والازاحات والأرتفاعات المتحققة وتم أستعمال برنامج(Kenova) لقياس السرعة والتعجيل والأزمان المتحققة لعينة الدراسة وبعد تحليل ومناقشة النتائج توصلت الباحثتان الى وجود علاقة أرتباط طردية بين طول الخطوة لقدم الأرتكاز وسرعة الخطوة لقدم الأرتكاز علاقة أرتباط عكسية بين زمن الخطوة لقدم الأرتكاز والإنجاز وعدم وجود علاقة أرتباط بين زاوية الأسناد وزاوية الدفع وزاوية اتجاه القدم الخلفية مع الأنجاز وفي ضوء ذلك توصي الباحثتان باجراء دراسات موسعه لهذه الفعالية لتشخيص نقاط الضعف والقوه في الأداء الفني والاهتمام بالجانب البايوميكانيكي من قبل المدربين والتأكيد على وضع القوة
Addressed this research the impact of intelligence emotional dimensions of the main(self awareness, and self-management, and social awareness, and relationship management) in the performance excellence the university(performance optimization, and strategic development) this is by middling the styles decision making which are (rational and intuitive, and dependent, and spontaneous, and avoidant), and Go search of an intellectual dilemma raise fundamental questions revolve around the search was to answer those questions through a theoretical framework for search variables first and test models of the relationship and second through the impact six hypotheses President.The objective of the research to make sure the contr
... Show MoreThis research aims to find out "the effectiveness of the self-questioning strategy in the achievement of students Phase III institutes of teacher preparation and decision-making in chemistry." The researcher follows approach quasi-experimental with a post-test, and the sample consisted of (27) from " Teachers Training Institute-AL-Byaa "in Directorate of Education Baghdad Karkh / 2 students divided into two unequal groups: experimental its number (14) students studied using reciprocal teaching strategy and control its number (13) students have studied in the usual way.The two groups were equivalent extraneous variables.
The researcher was prepare achievement test consist of 40 items was the adoption of a measure of decision-makin
... Show MoreThe problems of urban historic centers are considered some of the subjects which are widely dealt with in urban studies since the middle of the 20th century. literature of urban development have raised it , beside the fact that large number of urban development projects of the historical centers in many cities of the world ,and emerged from the application of these new problems projects added their original urban problems , because these projects have dealt with the physical structures with the neglect of the social and economic sides, which are the base in sustainable development nResearch problem was elaborated as : The unclearly of knowledge of the potentials of the sustainable development in solving the urban problems of historic cen
... Show MoreThe study titled “The role of the social media sites of Iraqi satellite channels in prioritizing the public” is a field study for the public of Dhi Qar.
The emergence of the social networking sites we are currently experiencing has undergone radical and important changes in the role of the mass media in light of the growth and rapid spread of modern technologies Or the so-called new media، which led the media organizations to create satellite channels on the social networks، which led to bypass the traditional lines between the public and media institutions with the public gain the possibility of The purpose of the research is to determine the habits and patterns of public use of the social media sites of the Iraqi satellite cha
The emergence of the Internet and its transformation in the early nineties of the last century led to a means of mass communication that brought about significant structural changes in the media map.
Over the course of historical development, the public did not engage the media in its behavior in the implementation and dissemination of an idea, generalization or theory put forward by media experts or practitioners through these means to do it. Blogs represent the most important service provided by the Internet in recent years which has gained special importance in the media field. Where the word “Blogs” has several names: (alternative media), (blogging press), (popular press) and other names.
The medi
... Show MoreArabian Political Regimes: Problems of Policies and Rule; An Introduction to Interpreting (The Arabian Spring) The Arab Region witnessed, since 2011, critical changes overthrew a group of Arab regimes in some of its countries, and the reaction of these changes are still going on up to now. These changes were given lots of justifications and interpretations. The current study tries to concentrate on the most important problems which were due to what was known as (The Arab Spring). The study proposes that the crisis which the countries of the area are exposed to is not spontaneous in many of its aspects. It is totally a crisis of rule and policies. Because it is a reflection of the nature of authority in the Arabian regimes on the one hand
... Show MoreSilver sulfide and the thin films Ag2Se0.8Te0.2 and Ag2Se0.8S0.2 created by the thermal evaporation process on glass with a thickness of 350 nm were examined for their structural and optical properties. These films were made at a temperature of 300 K. According to the X-ray diffraction investigation, the films are polycrystalline and have an initial orthorhombic phase. Using X-ray diffraction research, the crystallization orientations of Ag2Se and Ag2Se0.8Te0.2 & Ag2Se0.8S0.2 (23.304, 49.91) were discovered (XRD). As (Ag2Se and Ag2Se0.8Te0.2 & Ag2Se0.8S0.2) absorption coefficient fell from (470-774) nm, the optical band gap increased (2.15 & 2 & 2.25eV). For instance, the characteristics of thin films made of Ag2Se0.8Te0.2 and Ag2Se0.8S0.2
... Show MoreThe goal of current research is to identify the difficulties in the application of modern physics in the middle schools of the province of Baghdad schools from the perspective of teachers of physics trends, sample search of (127) teachers, Karkh Third Directorate, and use Researcher questionnaire data collection tool after applying it to teachers who have experience (5) years and more after confirmation of the validity and reliability of the scale (the tool) researcher has used the averages for the purpose of interpreting the results. the results showed that the difficulties have been in the order following: (difficulties related educational environment of modern trends of teaching, curriculum-related dif
... Show MoreThe polyaniline powder was chemically manufactured by direct oxidation of aniline. The resulting polymer was characterized by the results of optical, measurements by (FT-IR) spectroscopy, we have detected some of the absorption peaks located at 3498, 2858 cm-1, which correspond N-H vibrations, and C-H expansion of the aromatic ring respectively as well as stretching vibrations of quinoid ring have been observed. Structural properties, such as the surface topography using an atomic force microscope (AFM), and Surface composition by (SEM) have been studied. The structure of some pellets of polyaniline powder have been examined by using analytical X-ray diffraction technique, the pattern of obse
... Show MoreA study has been performed to compare the beddings in which ductile iron pipes are buried. In water transmission systems, bends are usually used in the pipes. According to the prescribed layout, at these bends, unbalanced thrust forces are generated that must be confronted to prevent the separation of the bend from the pipe. The bed condition is a critical and important factor in providing the opposite force to the thrust forces in the restraint joint system. Due to the interaction between the native soil and the bedding layers in which the pipe is buried and the different characteristics between them. Also, the interaction with the pipe material makes it difficult to calculate the real forces opposite to the thrust forces and the way they
... Show More