The inclusion of the video assistant referee (VAR) in the Laws of the Game [International Football Association Board (IFAB)] reflects a historic action in the world of soccer. The VAR was designed to reduce critical errors in soccer referees' decision-making (DM), thereby increasing the social perceptions of justice. From the referees' perspective, the implementation of the VAR represents a technical-technological career change-event. This case study adopted an intrinsic mixed-methods methodology to investigate the implementation of the VAR system within the Israeli Premier League context. The results indicated that the initial VAR performance rates of the Israeli referees were not high compared with data from other countries (e.g., Italy). The Israeli referees perceived the VAR implementation as a moderate change-event in their careers. The largest effects were in pre-match preparation, players' management, public perception, and DM. The referees felt that their perceived pressure during the matches decreased. This change-event produced off-field demands mostly related to the educational process and on-field demands mainly related to developing VAR proficiency. The referees also experienced off-field (e.g., lack of clear goals and rewards system) and on-field barriers (e.g., errors of the VARs). To effectively cope with these new demands and barriers, most of them initially consulted with others and then made a decision to apply all necessary adjustments in response to the new situation. They also received considerable support yet perceived their cooperation with the professional committee as moderate. The referees showed some professional improvements; still they experienced scrutiny from the clubs, the media, and the Referee Union. Thus, three of them perceived the outcome of this change process favorably, four naturally, and four negatively. The discussion presents reflections of these findings in light of the recently emerging literature on technological officiating aids in sport. Recommendations are provided for referee unions who aspire to integrate the VAR system into their operation.
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http://dx.doi.org/10.3389/fpsyg.2020.564855 | DOI Listing |
Stud Mycol
December 2024
Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, 3584 CT Utrecht, The Netherlands.
The species complex (FLSC) currently comprises 11 phylogenetic species, including accepted names such as , , and , which have mostly been reported in association with citrus and coffee. Many varieties were documented by Wollenweber & Reinking (1935), which is indicative of a wider diversity of species within this group. The lack of type material in some cases, especially for the older names, means that definition by molecular phylogeny is very difficult.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, POB 1179, Cairo, Egypt.
The manipulation of cultivation conditions in addition to environmental changes is a key factor affecting the growth, secondary metabolites production, and the biological activity of the plant. Our study aims to evaluate the impact of foliar spray of ethephon, water stress, organic and inorganic fertilizers on the cytotoxic and antimicrobial activities of the fruit oil of Foeniculum vulgare, Miller, var. dulce and its vegetative growth and oil composition.
View Article and Find Full Text PDFNat Prod Res
December 2024
Laboratório de Fitoquímica, Química Medicinal e Metabolômica - LFQMM - Instituto de Química - Universidade Federal de Alfenas - UNIFAL, Alfenas, MG, Brazil.
The fall armyworm is the most prevalent plague in crops associated with a reduction in corn production by up to 34%. Pesticides have been used to reduce this plague, but they cause several environmental problems including resistance, ecological imbalance, and toxicity to the final consumer. The use of plant extracts has been an effective manner of eradicating this plague from crop plantations.
View Article and Find Full Text PDFHum Genome Var
December 2024
Department of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, 565-0871, Japan.
DSG2, encoding desmoglein-2, is one of the causative genes of arrhythmogenic cardiomyopathy. We previously identified a homozygous DSG2 p.Arg119Ter stop-gain variant in a patient with juvenile-onset cardiomyopathy and advanced biventricular heart failure.
View Article and Find Full Text PDFBMC Plant Biol
December 2024
Guangzhou Academy of Agricultural Sciences, Guangzhou, 510335, China.
Background: The modification of protein substrates by small ubiquitin-related modifier (SUMO) plays a vital role in plants subjected to biotic and abiotic stresses. However, its role in the stress responses of Brassica plants remains poorly understood.
Results: A genome-wide analysis revealed the presence of 30 SUMOylation genes in the Caixin genome.
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