Results 31 to 40 of about 232,426 (313)

Dietary Supplement and Food Contaminations and Their Implications for Doping Controls

Foods, 2020
A narrative review with an overall aim of indicating the current state of knowledge and the relevance concerning food and supplement contamination and/or adulteration with doping agents and the respective implications for sports drug testing is presented.
Katja Walpurgis, Andreas Thomas, Hans Geyer, Ute Mareck, Mario Thevis   +4 more
doaj   +1 more source

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

, 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 ...
Horta, L, McVeigh, J, Parkinson, A, Christensen, A, Backhouse, SH, Petrou, M, Defoort, Y, Sauer, M, Dikic, N, McNamee, M, Brissonneau, C, Simon, P, Collins, C, Hauw, D   +13 more
core   +1 more source

Ten years of collecting hematological athlete biological passport samples—perspectives from a National Anti-doping Organization

Frontiers in Sports and Active Living, 2022
The hematological module of the Athlete Biological Passport (ABP) aims to reveal blood doping indirectly by looking at selected biomarkers of doping over time.
Lasse V. Bækken, Geir Holden, Astrid Gjelstad, Astrid Gjelstad, Fredrik Lauritzen   +4 more
doaj   +1 more source

Detection of the GH analogue somatrogon in doping control urine samples by means of LC-HRMS/MS

Scientific Reports
Somatrogon is a synthetic growth hormone (GH) analog, whose misuse in sports is prohibited at all times. As analytical approaches complementary to existing immunological GH detection methods were considered beneficial for its detection in doping control ...
Katja Walpurgis, Andreas Thomas, Alexandra Rauer, Bettina Majer, Mitsuhiko Sato, Masato Okano, Maneera Al-Jaber, Wadha Abushareeda, Cristian-Gabriel Arsene, Hans Geyer, Mario Thevis   +10 more
doaj   +1 more source

Detection of various prohibited substances in thoroughbred racehorses at three major racetracks in türkiye: a nine-year experience [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi
The use of prohibited substances raises significant ethical and global issues for horseracing. To mitigate these problems and maintain control, prohibited substance controls are conducted on samples taken from thoroughbred horses before and after races ...
Erol KABİL, Eylem Funda GÖKTAŞ, Ertuğrul GÜNEŞ, Levent YATANASLAN, Tuba Asena ZOR, Muhammet Hakan TEKTAŞ, Bahadır İNCEMAN, Murat TUFAN   +7 more
doaj   +1 more source

Detection of anti‐SARS‐CoV‐2 antibodies in dried blood spots utilizing manual or automated spot extraction and electrochemiluminescence immunoassay (ECLIA)

Analytical Science Advances, 2021
Serological test methods to detect anti‐SARS‐CoV‐2 antibodies represent a major measure to manage the pandemic caused by the coronavirus disease 2019 (COVID‐19).
Andre Knoop, Hans Geyer, Oliver Lerch, Ana Rubio, Yvonne Schrader, Mario Thevis   +5 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Probing for the presence of semenogelin in human urine by immunological and chromatographic‐mass spectrometric methods in the context of sports drug testing

Analytical Science Advances, 2022
Rationale An increasing number of adverse analytical findings (AAFs) in routine doping controls has been suspected and debated to presumably result from intimate contact with bodily fluids (including ejaculate), potentially facilitating the transfer of ...
Johanna Breuer, Andreas Thomas, Hans Geyer, Mario Thevis   +3 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source