[On the problem of doping].
نویسندگان
چکیده
منابع مشابه
Ethics in Sport and Doping Problem with an Emphasis on Islamic Educations
One of the most challenging topics of ethics in sport is the problem of "doping" by the usage of improper methods and materials of doping. In order to draw a valid conclusion, the paper attempts to evaluate and criticize the pros and conschr('39') evidences of doping taken from internet sites, different papers and Islamic resources. The derived conclusion indicates that despite of bringing abou...
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The main problemswith the use of fossil fuels is the restrictions on their access and the detrimental consequences of their use which causes a threat to human health and quality of life. Consequently, the use of other energy sources has become necessary. Renewable Energy as a permanent and clean energy source is an answer to this problem. One such energy source includes photovoltaic solar energ...
متن کاملElectroactive Materials Based on Thiophen: Study of the Doping and its Effect
We have theoretically investigated the effect of doping in oligothiophenes (Tn, n=2-8) with the DFT method at UB3LYP level with 6-31G(d) basis set. Our attention focused on the study of the geometrical and electronic properties in the neutral and doped states. We show that the doping process modify both bond lengths and torsion angles and also electronic properties by enhancing the planarity an...
متن کاملInvestigation and simulation of the effect of Substrate Doping on the Switching Delay of 22nm Double-Insulating UTBB SOI MOSFET
In this paper, for the first time, the effect of the substrate doping of 22nm double-insulating UTBB silicon-on-insulator device on the switching performance and turn-on delay of the transistor is investigated. In UTBB devices, the substrate voltage is varied from positive to zero then negative voltages to trade-off transistor speed against the leakage current. Various circuit design procedures...
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taking different ergogenic substances to improve sports performances is considered as a great problem in the world. The clim of this study was to determine the prevalenceamount of ergogenic substances use in Lorestan Province high school students and their knowledge about doping and using ergogenic substances. Materials and Methods: This research was carried out on 1180 male and female student...
متن کاملInfluences of Co2+ & Er3+ Co-doping on the Structural and Physical Properties of ZnO Nanocrystals Synthesized by Hydrothermal Route
Co2+ & Er3+ co-doped ZnO nanocrystals were synthesized by the hydrothermal method at 180°C and pH= 12 for 48 h. Powder XRD patterns indicate that the Zn1-2xErxCoxO crystals (0.00<x≤0.035) are isostructural with ZnO. The cell parameters increase for Er3+ and Co2+ upon increasing the dopant content (x). SEM images show that doping of Er3+ and Co2+ into the sites of Zn2+ does not change the morpho...
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عنوان ژورنال:
- Munchener medizinische Wochenschrift
دوره 114 31 شماره
صفحات -
تاریخ انتشار 1972