Results 11 to 20 of about 475,078 (290)

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

open access: yesSeparations, 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   +4 more
doaj   +1 more source

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

open access: yesSeparations, 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   +10 more
doaj   +1 more source

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

open access: yes, 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   +4 more
core   +1 more source

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

open access: yesSeparations, 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   +3 more
doaj   +1 more source

Study on Doping Prevention: A map of Legal, Regulatory and Prevention Practice Provisions in EU 28 [PDF]

open access: yes, 2014
Historically, anti-doping efforts have focused on the detection and deterrence of doping in elite and competitive sport. There is, however, a growing concern that doping is occurring outside the organised sporting system; giving rise to the belief that ...
Backhouse, SH   +13 more
core   +1 more source

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

open access: yesBMC 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

Mechanisms of doping graphene [PDF]

open access: yes, 2010
We distinguish three mechanisms of doping graphene. Density functional theory is used to show that electronegative molecule like F4-TCNQ and electropositive metals like K dope graphene p- and n-type respectively.
Aarts   +26 more
core   +1 more source

Reporting doping in sport: national level athletes' perceptions of their role in doping prevention. [PDF]

open access: yes, 2014
This paper qualitatively explores national level athletes' willingness to report doping in sport. Following ethical approval, semi-structured interviews were conducted with nine national level athletes from rugby league (n = 5) and track and field ...
Australian Crime Commission   +36 more
core   +1 more source

Chiral analysis of selected enantiomeric drugs relevant in doping controls

open access: yesJournal 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   +6 more
doaj   +1 more source

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

open access: yesЖурнал 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   +5 more
doaj   +1 more source

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