Results 241 to 250 of about 475,078 (290)
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Science, 2008
The critical role that dopants play in semiconductor devices has stimulated research on the properties and the potential applications of semiconductor nanocrystals, or colloidal quantum dots, doped with intentional impurities. We review advances in the chemical synthesis of doped nanocrystals, in the theoretical understanding of the fundamental ...
David J, Norris +2 more
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The critical role that dopants play in semiconductor devices has stimulated research on the properties and the potential applications of semiconductor nanocrystals, or colloidal quantum dots, doped with intentional impurities. We review advances in the chemical synthesis of doped nanocrystals, in the theoretical understanding of the fundamental ...
David J, Norris +2 more
openaire +2 more sources
International Journal of Sports Medicine, 2006
Together with the rapidly increasing knowledge on genetic therapies as a promising new branch of regular medicine, the issue has arisen whether these techniques might be abused in the field of sports. Previous experiences have shown that drugs that are still in the experimental phases of research may find their way into the athletic world.
H J, Haisma, O, de Hon
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Together with the rapidly increasing knowledge on genetic therapies as a promising new branch of regular medicine, the issue has arisen whether these techniques might be abused in the field of sports. Previous experiences have shown that drugs that are still in the experimental phases of research may find their way into the athletic world.
H J, Haisma, O, de Hon
openaire +2 more sources
Journal of Vacuum Science and Technology, 1979
The MBE technique has made feasible the growth of periodic semiconductor structures composed of ultrathin layers with alternating p- and n-doping. This kind of superlattice, in contrast to familiar heterostructure systems, does not contain any interfaces, and, therefore, does not show the problems related to those. Doping superlattices, on the contrary,
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The MBE technique has made feasible the growth of periodic semiconductor structures composed of ultrathin layers with alternating p- and n-doping. This kind of superlattice, in contrast to familiar heterostructure systems, does not contain any interfaces, and, therefore, does not show the problems related to those. Doping superlattices, on the contrary,
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Applied Surface Science, 2017
Abstract Doping CeO2 cubic fluorite with transitional metal ions can effectively improve its redox behavior, oxygen storage capacity and catalytic performance, but the relevant fundamental understanding of the promotion effect is still insufficient due to the difficulty on determining the distribution of dopant.
Huizhi Bao +3 more
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Abstract Doping CeO2 cubic fluorite with transitional metal ions can effectively improve its redox behavior, oxygen storage capacity and catalytic performance, but the relevant fundamental understanding of the promotion effect is still insufficient due to the difficulty on determining the distribution of dopant.
Huizhi Bao +3 more
openaire +1 more source
2017
Abstract Doping in sport, with its connotations of unethical behaviour and harm to health, has existed since antiquity. In contemporary times, an acceleration of doping practices resulted in the eventual development of a robust legal and scientific framework now entrenched in the World Anti-Doping Code.
Alan Vernec, David Gerrard
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Abstract Doping in sport, with its connotations of unethical behaviour and harm to health, has existed since antiquity. In contemporary times, an acceleration of doping practices resulted in the eventual development of a robust legal and scientific framework now entrenched in the World Anti-Doping Code.
Alan Vernec, David Gerrard
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2009
Gene doping abuses the legitimate approach of gene therapy. While gene therapy aims to correct genetic disorders by introducing a foreign gene to replace an existing faulty one or by manipulating existing gene(s) to achieve a therapeutic benefit, gene doping employs the same concepts to bestow performance advantages on athletes over their competitors ...
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Gene doping abuses the legitimate approach of gene therapy. While gene therapy aims to correct genetic disorders by introducing a foreign gene to replace an existing faulty one or by manipulating existing gene(s) to achieve a therapeutic benefit, gene doping employs the same concepts to bestow performance advantages on athletes over their competitors ...
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History of Doping and Doping Control
2009Although attempts to enhance athletic performance are probably much older, the word “doping” was first mentioned in 1889 in an English dictionary. It described originally a mixed remedy containing opium, which was used to “dope” horses. “Dope” was a spirit prepared from the residues of grapes, which Zulu warriors used as a “stimulant” at fights and ...
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Medicina e Morale, 2018
Il complesso fenomeno del doping presenta notevoli problemi di definizione. Queste difficoltà, che hanno influenzato l’evoluzione delle politiche anti-doping, sono ulteriormente acuite dall’assenza di una cornice etica chiaramente definita, in grado di giustificare inequivocabilmente le azioni di contrasto intraprese dalle agenzie sportive a partire ...
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Il complesso fenomeno del doping presenta notevoli problemi di definizione. Queste difficoltà, che hanno influenzato l’evoluzione delle politiche anti-doping, sono ulteriormente acuite dall’assenza di una cornice etica chiaramente definita, in grado di giustificare inequivocabilmente le azioni di contrasto intraprese dalle agenzie sportive a partire ...
openaire +1 more source
Rare-Earth Doping in Nanostructured Inorganic Materials
Chemical Reviews, 2022Jingyue Fan, Bing Chen, Xian Qin
exaly