Results 111 to 120 of about 281,534 (274)

Subjective experience, self-efficacy, and motivation of professional football referees during the COVID-19 pandemic. [PDF]

Humanit Soc Sci Commun, 2023
Richlan F, Thürmer JL, Braid J, Kastner P, Leitner MC.   +4 more
europepmc   +1 more source

The Impact of Anthem Protests, MAGA, and BLM on NFL Attendance

Southern Economic Journal, EarlyView.
ABSTRACT On September 1, 2016, Colin Kaepernick first took a knee during the San Francisco 49ers' final preseason game. The protest quickly became league‐wide, and inspired similar actions by players in the WNBA, NWSL, NBA, college football and other professional sports.
Oskar Harmon, Jungbin Hwang
wiley   +1 more source

Credit‐Driven Adaptive Grouping for Refined Cooperative Multi‐Agent Reinforcement Learning

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT Policy heterogeneity is crucial for achieving sophisticated coordination in complex collaborative tasks, which has emerged as one of the key challenges in multi‐agent reinforcement learning (MARL) in recent years. Notably, the grouping paradigm has made remarkable progress in addressing policy heterogeneity.
Yirui Liu, Xueqiang Gu, Caiming Zheng, Xin Xu, Zhangling Wang, Wanpeng Zhang, Yixing Lan   +6 more
wiley   +1 more source

The effect of special exercises on some functional variables and cognitive abilities and their relationship to the level of performance of second-class referees in the game of football

الرياضة المعاصرة
Knowing the effect of special exercises (physical, skill, cognitive) for football referees on the neurotransmitter (serotonin), blood sugar, and cognitive abilities is what this study concluded and aimed to prepare special exercises for physiological ...
Ali Mahdi hadi, Hisham Atta Abdul Hussein   +1 more
doaj   +1 more source

Association between Fitness Level and Physical Match Demands of Professional Female Football Referees. [PDF]

Int J Environ Res Public Health, 2022
Sánchez MLM, Oliva-Lozano JM, García-Unanue J, Krustrup P, Felipe JL, Moreno-Pérez V, Gallardo L, Sánchez-Sánchez J.   +7 more
europepmc   +1 more source

Large‐Scale Applications of Plasma Technologies: Progresses and Challenges

High Voltage, EarlyView.
ABSTRACT Plasma technologies convert electrical power into energetic electrons, ions, reactive species, radiation and heat, thereby breaking through the bottleneck of purely thermal or chemical routes and bringing impressive changes to our world. This roadmap reviews the progress and challenges of plasma technologies from a large‐scale and application ...
Pankaj Attri, Liuyang Bai, Dmitry Batomunkuev, Xueke Che, Guoxing Chen, Zhitong Chen, Wei Cui, Liguang Dou, Zhi Fang, Yangyang Fu, Fausto Gallucci, Yiming Guo, Bangdou Huang, Yinghong Li, Sirui Li, Hua Liang, Liangliang Lin, Dingxin Liu, Xiangyang Liu, Xinpei Lu, Ruonan Ma, Lanlan Nie, Guanghui Niu, Yuge Ouyang, Tao Shao, Jing Sun, Yong Tang, Xin Tu, Sergey P. Vashchenko, Hang Wang, Xianjie Wang, Anke Weidenkaff, Yun Wu, Haohan Xie, Shaojun Xu, Zongxian Yang, Fangli Yuan, Cheng Zhang, Hao Zhang, Jishen Zhang, Shuai Zhang, Yejian Zhang, Zhe Zhang, Zhibo Zhang, Peng Zhao, Shicheng Zhao, Linlin Zhong, Renwu Zhou, Zhenhua Zhou, Xi Zhu, Yifei Zhu, Haohua Zong   +51 more
wiley   +1 more source

Analysis of Burnout and Psychosocial Factors in Grassroot Football Referees. [PDF]

Int J Environ Res Public Health, 2021
Orviz-Martínez N, Botey-Fullat M, Arce-García S.   +2 more
europepmc   +1 more source

Intensity of effort on football refereeing

, 2009
O objetivo deste estudo foi analisar as respostas da freqüência cardíaca (FC) de árbitros de futebol durante a partida a partir de índices fisiológicos determinados em teste progressivo intermitente com pausas (TCar) e determinar as intensidades de esforço durante a partida. Foram avaliados seis árbitros de nível estadual (29,5 ± 5 anos; 73,9 ± 10,5 kg;
da Silva, Juliano Fernandes, Guglielmo, Luiz Guilherme Antonacci, Carminatti, Lorival, Rossato, Mateus   +3 more
openaire   +1 more source

Views from the Inside: Reflections on the Modern Hospital

The Political Quarterly, EarlyView.
Abstract There's a constant refrain in the press, on social media and from populist politicians that the NHS is dying on its feet. How accurate is this picture? This article takes a behind‐the‐scenes look at daily life in a modern, big city hospital. The Queen Elizabeth is now the biggest workplace in Birmingham.
Jon Bloomfield
wiley   +1 more source

The effects of training on hormonal concentrations and physical performance of football referees. [PDF]

Physiol Rep, 2021
Muscella A, Stefàno E, Marsigliante S.
europepmc   +1 more source