687 research outputs found

    Coming Out of the Closet, Also on the News? A Longitudinal Content Analysis of Patterns in Visibility, Tone and Framing of LGBTs on Television News (1986-2017)

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    This study documents the results of a longitudinal content analysis of television news about LGBT people in terms of visibility, active representation, tone and framing in Flanders (1986–2017). While attention for LGBT issues has increased over time, LGBTs are not more likely to be visually represented or granted a voice. Gay men are more often actively represented than lesbians and transgender people. News remains negatively biased, although news stories in which LGBT people are depicted as the cause of negativity have become less prevalent. Patterns in framing have shifted: Deviance and abnormality frames have decreased in favor of a rise in equal rights and victim frames. Patterns in tone and framing were similar for gay men, lesbians and transgender people. Results suggest that journalists have shifted from problematizing homosexuality to problematizing homophobia. Implications of news as a source of mass-mediated contact to promote tolerance toward LGBT people are discussed

    The thermoregulatory and thermal responses of individuals with a spinal cord injury during exercise, acclimation and by using cooling strategies-A systematic review

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    In individuals with a spinal cord injury thermoregulatory mechanisms are fully or partially interrupted. This could lead to exercise-induced hyperthermia in temperate conditions which can be even more distinct in hot conditions. Hyperthermia has been suggested to impair physiological mechanisms in athletes, which could negatively influence physical performance and subjective well-being or cause mild to severe health issues. The aim was to evaluate the literature on the thermoregulatory and thermal responses of individuals with a spinal cord injury during exercise in temperate and hot conditions taking the effects of cooling techniques and heat acclimation into account. Two electronic databases, PubMed and Web of Science were searched. Studies were eligible if they observed the influence of exercise on various thermoregulatory parameters (e.g., core and skin temperature, sweat rate, thermal sensation) in individuals with a spinal cord injury. In total 32 articles were included of which 26 were of strong, 3 of moderate and 3 of weak quality. Individuals with a high lesion level, especially those with a tetraplegia, reached a higher core and skin temperature with a lower sweat rate. The use of cooling techniques before and during exercise can positively affect the burden of the impaired thermoregulatory system in all individuals with a spinal cord injury. Due to the absence of normal thermoregulatory abilities, individuals with a high-level spinal cord injury need special attention when they are exercising in temperate and hot conditions to prevent them from potential heat related issues. The use of cooling techniques can reduce this risk. [Abstract copyright: Copyright © 2021 Grossmann, Flueck, Perret, Meeusen and Roelands.

    Heart rate responses and technical-tactical aspects of official 5-a-side youth soccer matches played on soil and artificial turf.

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    Using a randomized crossover design, this study aimed to compare the heart rate (HR) responses and match analysis parameters (i.e., type of action; the number of players involved in an action; the number of passes performed in a collective action; precision of the shots; lost balls; ball interceptions; dribblings; and tackles) of official 5-a-side youth male soccer matches played over 2 pitch surface (i.e., clay vs. artificial turf) conditions. Twenty-two young male soccer players (age 8.3 6 0.4 years) engaged in 2 consecutive 15-minute periods in each experimental condition. During the match, 53% of HR responses exceeded 85% of the individual HRpeak. No difference emerged between both pitch surfaces and match periods for HR and match analysis indicators. The two 15-minute periods resulted in being appropriate for 8-year-old players, in resembling the intensity of play and the intermittent nature of adult soccer. The similar HR responses and technical-tactical patterns observed on the 2 surfaces indicate that youth match play is not affected by differences in pitch surface. To support the development of individual and team skills of young soccer players, coaches are advised to prioritize game knowledge based on divergent thinking and experience, rather than traditional teaching based on instructions

    Diagnosing overtraining in athletes using the two-bout exercise protocol

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    Objective: In this work, whether a two-bout exercise protocol can be used to make an objective, immediately available distinction between non-functional over reaching (NFO) and overtraining syndrome (OTS) was studied. Design: Underperforming athletes who were diagnosed with the suspicion of NFO or OTS were included in the study. Recovery of the athletes was monitored by a sports physician to retrospectively distinguish NFO from OTS. Setting: Sports medicine laboratory Participants: The protocol was started and completed by 10 underperforming athletes. NFO was retrospectively diagnosed in five athletes, and OTS was diagnosed in five athletes. Interventions: A two-bout maximal exercise protocol was used to measure physical performance and stressinduced hormonal reactions. Main outcome measurements: Exercise duration, heart rate and blood lactate concentration were measured at the end of both exercise tests. Venous concentrations cortisol, adrenocorticotrophic hormone (ACTH), prolactin and growth hormone were measured both before and after both exercise tests. Results: Maximal blood lactate concentration was lower in OTS compared with NFO, while resting concentrations of cortisol, ACTH and prolactin concentrations were higher. However, sensitivity of these measures was low. The ACTH and prolactin reactions to the second exercise bout were much higher in NFO athletes compared with OTS and showed the highest sensitivity for making the distinction. Conclusions: NFO might be distinguished from OTS based on ACTH and prolactin reactions to a two-bout exercise protocol. This protocol could be a useful tool for diagnosing NFO and OTS; however, more data should be collected before this test can be used as the gold standard

    N-ethylmaleimide-modified heavy meromyosin. A probe for actomyosin interactions.

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    Cycling exposure and infrastructural correlates in a Flemish adolescent population

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    Introduction: Infrastructure adjusted to cyclists can be used as a tool to reduce cycling crashes and injuries. To increase cycling frequency and safety, a population's cycling exposure to different infrastructure needs to be known. Since cycling behavior of adolescents cannot be compared to adults, the objective of this study is to describe the cycling exposure and the characteristics of routes used by adolescents for bicycle commuting. Methods: We used an online travel diary to collect bicycle route information and an exposure matrix to collect cycling frequency data. Data were collected in Flanders (Belgium) from an adolescent population (15-18 years). Results: From the 1345 participating adolescents, 47% used their bicycle at least once a week. Infrastructural correlates were based on 467,000 km of cycled roads with a mean trip distance of 5.7 +/- 4.5 km; 91% of cycling exposure is on infrastructure with speed limits of 50 km/h or more and 32.7% on dedicated cycle lanes. Lower motorized traffic density was related to higher odds of daily bicycle commuting. Higher traffic densities or speed limits were related to lower odds of daily bicycle commuting, but this relationship disappeared after adjusting for presence of a dedicated cycle lane. Conclusions: Many adolescents who commute by bicycle cycle along streets with high speed limits and no dedicated cycle lanes probably because of the low motorized traffic densities on these roads. Adolescents should avoid roads without dedicated cycling infrastructure and high speed limits since these roads have been identified as high risk. The results are region specific and therefore this study should be replicated in other contexts

    Eten van waarde : voedselkwaliteit in Nederland

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    Het rapport geeft weer wat consumenten vinden van de maatschappelijke aspecten van voedselproductie en -consumptie en consumenten deze mening vertalen in hun aankopen en consumptie. Centraal in deze studie staat dus de mening en opvatting van Nederlandse consumenten alsook zijn gedrag inzake vijf (van de negen) voedselwaarden, die het ministerie van LNV van belang acht: gezondheid, milieu, dierenwelzijn, rechtvaardigheid en ambachtelijkhei

    The N-terminal intrinsically disordered domain of mgm101p is localized to the mitochondrial nucleoid.

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    The mitochondrial genome maintenance gene, MGM101, is essential for yeasts that depend on mitochondrial DNA replication. Previously, in Saccharomyces cerevisiae, it has been found that the carboxy-terminal two-thirds of Mgm101p has a functional core. Furthermore, there is a high level of amino acid sequence conservation in this region from widely diverse species. By contrast, the amino-terminal region, that is also essential for function, does not have recognizable conservation. Using a bioinformatic approach we find that the functional core from yeast and a corresponding region of Mgm101p from the coral Acropora millepora have an ordered structure, while the N-terminal domains of sequences from yeast and coral are predicted to be disordered. To examine whether ordered and disordered domains of Mgm101p have specific or general functions we made chimeric proteins from yeast and coral by swapping the two regions. We find, by an in vivo assay in S.cerevisiae, that the ordered domain of A.millepora can functionally replace the yeast core region but the disordered domain of the coral protein cannot substitute for its yeast counterpart. Mgm101p is found in the mitochondrial nucleoid along with enzymes and proteins involved in mtDNA replication. By attaching green fluorescent protein to the N-terminal disordered domain of yeast Mgm101p we find that GFP is still directed to the mitochondrial nucleoid where full-length Mgm101p-GFP is targeted

    Biologische landbouw bij Wageningen UR (2): aanbevelingen voor onderzoek en onderwijs 2004-2008

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    Dit rapport is een update van het eerste rapport uit 2000. Het is voortgekomen uit het werkplan van het LNV-onderzoeksprogramma `Koepelprogramma Biologische LandbouwÂż, waarin LNV vraagt onder andere het kerngroeprapport te actualiseren op met name de visie op biologische landbouw (onderzoek en onderwijs) en de prioritaire onderzoeksthemaÂżs voor de periode 2004 - 2008. Behalve een actualisatie, geeft de Kerngroep Biologische Landbouw 2003 in dit rapport ook een schets en evaluatie van de onderzoeks- en onderwijsinspanningen van 2000 tot nu. Hetzelfde doet ze ook voor de taken en doelstellingen van het in 2001 opgerichte Innovatiecentrum Biologische Landbouw van Wageningen UR. Tevens schetst ze een gewenste toekomstige ontwikkeling voor dit centru
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