Results 41 to 50 of about 232,426 (313)

From mat to sand: a comparative injury surveillance study of Olympic and Beach Wrestling at the 2025 World championships

open access: yesInjury Epidemiology
Background Wrestling is associated with a substantial risk of injury; however, comparative injury epidemiology between Olympic Wrestling (OW) and Beach Wrestling (BW) remains limited, constraining evidence-informed injury-prevention strategies across ...
Szabolcs Molnár   +5 more
doaj   +1 more source

Systematic review of undeclared prohibited substances and pharmacological adulterants in dietary supplements: prevalence, detection, and risks in sport

open access: yesFrontiers in Sports and Active Living
IntroductionThe proliferation of dietary supplement use among athletes has heightened concerns over inadvertent doping due to contamination with substances prohibited by the World Anti-Doping Agency (WADA) and other undeclared pharmacological adulterants.
Nasser Al-Saad   +3 more
doaj   +1 more source

Triglyceride profiling in adipose tissues from obese insulin sensitive, insulin resistant and type 2 diabetes mellitus individuals

open access: yesJournal of Translational Medicine, 2018
Background Lipid intermediates produced during triacylglycerols (TAGs) synthesis and lipolysis in adipocytes interfere with the intracellular insulin signaling pathway and development of insulin resistance.
Haya Al-Sulaiti   +8 more
doaj   +1 more source

Evaluation and Monitoring of the Natural Toxin Ptaquiloside in Bracken Fern, Meat, and Dairy Products

open access: yesToxins, 2023
Ptaquiloside, a naturally occurring cancer-causing substance in bracken fern, has been detected in the meat and milk of cows fed a diet containing bracken fern.
Hana Park   +7 more
doaj   +1 more source

Tailored Hierarchical Porous Copper Architectures via Three Dimensional Printing and Pressure‐less Sintering for Next‐Generation Lithium‐Metal Batteries

open access: yesAdvanced Engineering Materials, EarlyView.
A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley   +1 more source

Kritik des Anti-Doping

open access: yes, 2019
Der anhaltend brisante Kampf gegen Doping im Sport wird mit vielen Mitteln geführt. Dabei haben die verschiedenen Anti-Doping-Programme und Maßnahmen eklatante Probleme und sind vielfach sogar widersprüchlich. So stellt eine Totalüberwachung der Athleten

core   +1 more source

The Effects of Different Dopants and Doping Procedures on the Reactivity of CaO-based Sorbents for CO2 Capture [PDF]

open access: yes, 2012
Calcium-looping technology is a promising CO2-capture technology. The economics and environmental impact of the process are affected by the rapid decay in reactivity of the limestone sorbent, which necessitates a high purge rate from the system to ...
Al-Jeboori, Mohamad J   +3 more
core   +1 more source

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

EPO and doping

open access: yesEuropean Journal of Applied Physiology, 2010
It is with great interest that we read exchanges on intermittent hypoxic (Boning 2009; Ferretti 2009) exposure as a potential doping procedure. Erythropoietin (EPO) does introduce potential concerns in terms of doping, both due to its eVects and side eVects. An earlier publication on exogenous EPO (Noakes 2008) clearly showed an increase of sub-maximal
Balestra, Costantino, Germonpré, Peter
openaire   +4 more sources

Powder Optimization Strategies for Binder Jetting Printing of BaTiO3 and Ba0,6Sr0,4TiO3 Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Powder optimization is investigated to enable binder jetting of BaTiO3 and Ba0.6Sr0.4TiO3 ferroelectric ceramics. The antagonistic relationship between flowability and binder compatibility is addressed through binder impregnation of granulated powders and fumed silica addition to fine powders.
Fanny Pruvost   +4 more
wiley   +1 more source

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