Results 61 to 70 of about 9,390 (303)

Precipitating or prohibiting factor: Coaches’ perceptions of their role and actions in anti-doping [PDF]

open access: yes, 2017
Coaches are frequently cited as potentially precipitating or preventing athletes’ engagement in doping. However, little is known about coaches’ perspectives.
Rhiannon Morris   +7 more
core   +1 more source

Exploring self-declared prohibited substance use in combat sports: The Serbian perspective

open access: yesExercise and Quality of Life
The exploratory study is grounded in field research, utilizing semi-structured interviews with active, former, and recreational athletes in combat sports.
Vuk Raonić   +5 more
doaj   +1 more source

Uniform Amorphization of Crystalline Silicon Surfaces Enabled by Deep Ultraviolet Femtosecond Laser Pulses

open access: yesAdvanced Engineering Materials, EarlyView.
Deep‐UV (258 nm) femtosecond pulses enable uniform amorphous silicon writing on Si(100)/(111) with a six‐fold larger fluence amorphization window than NIR methods. Optimized fluence and overlap yield 20–45 nm uniform and continuous amorphous layers. Microscopy shows sharp interfaces, and real‐time reflectivity reveals nanosecond melt–resolidification ...
Wissal Benali   +5 more
wiley   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Doping in Sport and the Law, edited by Ulrich Haas and Deborah Healey. Oxford: Hart Publishing Ltd, 2016, 344 pp (£80.00 hardback). ISBN: 9781509905881

open access: yesEntertainment and Sports Law Journal, 2017
A review of the recently published book: Doping in Sport and the Law, edited by Ulrich Haas and Deborah Healey. Oxford: Hart Publishing Ltd. In the context of sports law and sports governance and of scholarly work on doping in sport in general the author
Jonathan Rees
doaj   +2 more sources

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

ANALYSIS AND EVALUATION OF THE CHOSEN ASPECTS OF THE ANTI-DOPING IN SPORT AS A ROLE OF AUTHORITIES OF THE COUNTRY IN ORDER TO ASSURE SAFETY IN SPORT [PDF]

open access: yesModern Management Review, 2018
The article analyzes and evaluates the legal and organizational regulations adopted on the basis of worldwide standards set by the institutions specialized in counteracting the phenomenon of doping in sport. The biggest attention was placed on the Polish
Patryk MASŁOWSKI
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

Polarizable Vanadium Dipoles Promote Water Dissociation on Vanadium‐Based Metal Organic Framework

open access: yesAdvanced Functional Materials, EarlyView.
The polarization of unpaired V 3d electrons weakens the H─O bond to improve water dissociation by the dual Vδ+:O─H and Pλ−:H─O coupling hydrogen bonds formation and relaxation. P@V‐MOF electrocatalyst shows low overpotentials (94 mV in acid, 178 mV in neutral, and 77 mV in alkaline solutions) with excellent stability for effective overall water ...
Xinjuan Liu   +13 more
wiley   +1 more source

Regulating competitive balance in sport [PDF]

open access: yes, 2012
Sport is an integral part of popular culture, capturing the hearts and minds of millions of people from every section of society 1. Maintaining competitive balance in sport is essential in preserving its long term survival.
Kashani, O
core  

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