Results 11 to 20 of about 468,417 (296)

Determination of 27 Glucocorticoids in Urine by Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry Using UniSpray^TM Source

Separations, 2023
Glucocorticoids (GCs) are a group of the most important and commonly used anti-inflammatory, antiallergenic, and immunosuppressive drugs. Like narcotics, they can be addictive if taken at increasing doses to achieve greater analgesic effects. The purpose
Mariola Wicka, Krzysztof Grucza, Aleksandra Drapała, Patryk Konarski, Dorota Kwiatkowska   +4 more
doaj   +1 more source

Diagnostic Strategies for Brain Doping in an Animal Model via Quantitative Analysis of Neurochemicals

Separations, 2023
Brain doping is a novel form of doping that involves stimulating specific brain regions to enhance sports performance. However, to the best of our knowledge, there is currently no established provision or detection method for it.
Yoeseph Cho, Seongeun Jeon, Yejin Lee, Hana Park, Yinglan Xu, Mijin Jeon, Sunmi Jung, Minyoung Kim, Ahlim Chin, Sang Sun Yoon, Junghyun Son   +10 more
doaj   +1 more source

Relationship between sleep quality, mood state, and performance of elite air-rifle shooters

BMC Sports Science, Medicine and Rehabilitation, 2022
Background To evaluate the impact of pre-competition sleep quality on the mood and performance of elite air-rifle shooters. Methods Elite shooters who participated in an air-rifle shooting-competition from April 2019 to October 2019 were evaluated using ...
Jiaojiao Lu, Yan An, Jun Qiu
doaj   +1 more source

Determination of Ecdysterone in Dietary Supplements and Spinach by Ultra-High-Performance Liquid Chromatography-Tandem Mass Spectrometry

Separations, 2021
Ecdysterone is a naturally occurring steroid hormone of the ecdysteroid class. This group is widely marketed to athletes in dietary supplements as a “natural anabolic agent”, advertised to increase strength and muscle mass during resistance training ...
Krzysztof Grucza, Mariola Wicka, Aleksandra Drapała, Dorota Kwiatkowska   +3 more
doaj   +1 more source

The spirit of sport: the case for criminalisation of doping in the UK [PDF]

, 2017
This article examines public perceptions of doping in sport, critically evaluates the effectiveness of current anti-doping sanctions and proposes the criminalisation of doping in sport in the UK as part of a growing global movement towards such ...
B Goldman, B Goldman, Cycling Independent Reform Commission, D Husak, E Carolan, HA Solberg, J Anderson, J O’Leary, J Savulescu, J Soek, K Haugen, P Kimmage, S Backhouse, SH Kadish, V Lentillon-Kaestner, WM Brown   +15 more
core   +2 more sources

Chiral analysis of selected enantiomeric drugs relevant in doping controls

Journal of Chromatography Open, 2021
Various substances classified by the World Anti-Doping Agency (WADA) as prohibited in sports feature one or more chiral centers. Amongst those, few analytes exist that are so-called threshold substances, for which also enantiomerically pure drugs are ...
Ana Rubio, Christian Görgens, Sven Guddat, Thomas Piper, Ann-Marie Garzinsky, Oliver Krug, Mario Thevis   +6 more
doaj   +1 more source

Intraplanar couplings in the CuO_2 lattice of cuprate superconductors [PDF]

, 2004
We have investigated the doping dependencies of the basal areas in single-layer high-T_c cuprates La_{2-x}Sr_xCuO_4 and HgBa_2CuO_x, as well as in two-layer Y_{1-y}Ca_yBa_2Cu_3O_x and HgBa_2CaCu_2O_x.
Billinge, Fukuoka, J. Röhler, Kaldis, Radaelli   +4 more
core   +1 more source

Quantitative determination of major nandrolone metabolite in human urine by gas chromatography/mass spectrometry

Журнал Белорусского государственного университета: Химия, 2019
Nandrolone is an anabolic androgenic steroid. The use of this substance is prohibited by World Anti-Doping Agency (WADA). In National Anti-Doping Laboratory, we have developed method for quantitative determination of major nandrolone metabolite – 19 ...
Pavel G. Shahoika, Aliaksandr A. Ahabalayeu, Olga N. Tchekhovskaya, Yury G. Pakhadnia, Sergey A. Beliaev, Sergey M. Leschev   +5 more
doaj   +1 more source

Behaviour of superconductivity energetic characteristics in electron-doped cuprates. A simple model [PDF]

, 2007
A simple model to describe the energetic phase diagram of electron-doped cuprate superconductor is developed. Interband pairing operates between the UHB and the defect states created by doping and supplied by both extincting HB-s.
Alff, Armitage, Bianconi, Bianconi, Biswas, Dagan, Damascelli, Fournier, Harima, Khasanov, Kristoffel, Kristoffel, Kristoffel, Kristoffel, Kristoffel, Kristoffel, Kristoffel, Kristoffel, Kristoffel, Kusko, Kyung, Matsui, Meinders, Moskalenko, Müller, N. Kristoffel, Onose, P. Rubin, Park, Suhl, Sunko, Tachiki, Takahashi, Tohyama, Uchida, Yuan   +35 more
core   +1 more source

Quantifying and analysing the angular momentum in volleyball jump serve during the aerial phase: relationship to arm swing speed [PDF]

PeerJ
Background In volleyball, the jump serve is a crucial and commonly used serving technique. Nonetheless, the angular momentum developed during the jump serve remains unexplored.
Lingjun Liu, Zhenxiang Chen, Defeng Zhao, Zhizong Tan, Yaqian Qi   +4 more
doaj   +2 more sources