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Design and Standardization of a Composite Test to Measure Basic Basketball Shooting Types among University Student-Players
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Tests in the sports field constitute an essential tool for achieving optimal results and evaluating player performance, particularly in competitive sports such as basketball. The importance of shooting emerges as it is the only means of direct scoring and the critical statistic that distinguishes victory from defeat. The researchers observed that previous tests of basic shooting types whether administered individually or in combination do not adequately reflect the complexities of actual game situations. Therefore, the problem lies in the need to address this gap by designing a composite test that simulates various playing conditions related to basic shooting skills. The descriptive approach was adopted, and the research community was deliberately selected from student-players at the College of Physical Education and Sports Sciences, University of Baghdad, with a research sample of (88) players. The research resulted in a composite test comprising four basic shooting types (free throw, jump shot inside the arc, jump shot outside the arc, and layup) with a total of 13 attempts and a maximum score of 27 points. The test demonstrated high validity, with 100% expert agreement and a discriminative validity t-value of 5.11 (p < 0.05). Reliability was established using the test-retest method (r = 0.91, p < 0.05), and objectivity was confirmed with an inter-rater correlation coefficient of 0.96 (p < 0.05). The mean performance score was 5.56 points/minute, with scores ranging from 2.14 to 15.56 points/minute, and standards were established.

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Publication Date
Tue Jan 18 2022
Journal Name
Materials Science Forum
The Effect of Gamma Radiation on the Manufactured HgBa&lt;sub&gt;2&lt;/sub&gt;Ca&lt;sub&gt;2&lt;/sub&gt;Cu&lt;sub&gt;2.4&lt;/sub&gt;Ag&lt;sub&gt;0.6&lt;/sub&gt;O&lt;sub&gt;8+δ&lt;/sub&gt; Compound
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In this article four samples of HgBa2Ca2Cu2.4Ag0.6O8+δ were prepared and irradiated with different doses of gamma radiation 6, 8 and 10 Mrad. The effects of gamma irradiation on structure of HgBa2Ca2Cu2.4Ag0.6O8+δ samples were characterized using X-ray diffraction. It was concluded that there effect on structure by gamma irradiation. Scherrer, crystallization, and Williamson equations were applied based on the X-ray diffraction diagram and for all gamma doses, to calculate crystal size, strain, and degree of crystallinity. I

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