The introduction to the research included a presentation of some physical characteristics and their importance in sports, including the speed of kinesthetic response response and the extent of its usefulness and importance, especially for soccer goalkeepers, as it is the most important element that goalkeepers must have, and it is also the main key to the excellence and development of all physical and kinesthetic response qualities and skills of a goalkeeper. Football. The speed of kinesthetic response response and reaction is one of the requirements of the game of football, as well as all other sports and even in general professional life. Its importance is highlighted for the football goalkeeper, so he must master it perfectly to perform the game with the best performance and direction. Because of its importance, coaches work to develop it. Through continuous exercises and training, hence the importance of research into knowing the effect of the proposed physical exercises to develop the goalkeeper’s reaction speed, identifying some important exercises that have an effective impact on developing reaction speed, and considering them in the issue of training and developing the performance level of goalkeepers in football. The research problem included monitoring and watching the matches played by the clubs. It was noted that the performance level of football goalkeepers suffers from a decline in several aspects that may affect the outcome of the matches. We take the most important aspect, which represents (the speed of kinesthetic response response), which did not take its share sufficiently like the rest of the abilities. The other is when preparing goalkeepers for football, and from this low level of this aspect came the research problem. The research aims to identify the effect of using suggested exercises to develop the kinesthetic response response speed of soccer goalkeepers. The experimental method was used and two equal groups with pre- and post-tests were designed for suitability and the nature of the research. The research sample consisted of a group of goalkeepers aged 16-20 years, (12) goalkeepers who were chosen intentionally from clubs (Al-Karkh, Amanat Baghdad, Airlines). They were divided into two groups by lottery: the first was a control group, numbering (6) guards and the second was an experimental group, numbering (6) guards. The research concluded that the proposed exercises had a positive impact on developing the motor response of the individuals in the research sample, to varying degrees. Also, the proposed exercises were the best in developing the goalkeepers’ kinesthetic response response.
The search involve the synthesis of some new 1,3-oxazepine and 1,3-diazepine derivatives were synthesized from Schiff base. The Schiff base (VIII) prepared from reaction of aldehyde (IV) derived from L-ascorbic acid with aromatic amine ([2-(4- nitrophenyl)-5-(4-aminophenyl)-1,3,4-oxadiazole] (VII). Oxazepine compounds (IX-XI) were synthesized from the cyclic condensation of Schiff base (VIII) with (maleic, phthalic and 3-nitrophthalic) anhydride, compounds (IX-XI) that were reacted with p-methoxyaniline to give diazepine derivatives (XII-XIV). The structures of the new synthesized compounds have been confirmed by physical properties and spectroscopy measurements such as FTIR, and some of them by 1 H-NMR, 13 CNMR, Mass, and evaluated
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In this work, prepared new ligand namely 5-(2,4-dichloro-phenyl)-1,3,4-oxadiazole-2-(3H)-thion, was obtained from the 2,4-dichlorobenzoyl chloride with hydrazine, after that reaxtion with CS2/KOH in methanol.
This study develops a systematic density functional theory alongside on-site Coulomb interaction correction (DFT + U) and ab initio atomistic thermodynamics approachs for ternary (or mixed transitional metal oxides), expressed in three reservoirs. As a case study, among notable multiple metal oxides, synthesized CoCu2O3 exhibits favourable properties towards applications in solar, thermal and catalytic processes. This progressive contribution applies DFT + U and atomistic thermodynamic approaches to examine the structure and relative stability of CoCu2O3 surfaces. Twenty-five surfaces along the [001], [010], [100], [011], [101], [110] and [111] low-Miller-indices, with varying surface-termination configurations were selected in this study.
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Aim: The reduction in the amount of marginal bone is the most important demand for the long term success of dental implants. This prospective clinical study was aimed to investigate the marginal bone loss of early loaded SLActive implants with different dimensions and surgical approaches. Materials and methods Fifteen patients aged from 18 to 60 years were divided into 2 groups (flapped and flapless approach) that underwent delayed implant placement protocol with SLActive implants. The marginal bone level was estimated by cone-beam computed tomography during three different periods: preoperatively, 8 weeks after surgery and 24 weeks after loading of the prosthesis. Results: The mean value of marginal bone level was not significantly chan
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