295 research outputs found
Student-governed electronic portfolios as a tool to involve university teachers in competency-oriented curriculum development
Trade-Offs and Synergies Between Biodiversity Conservation and Productivity in the Context of Increasing Demands on Landscapes
Shifting spatial priorities for ecosystem services in Europe following land use change
Policy objectives to maintain ecosystem services are increasingly set. Methods to identify priority areas for ecosystem services can assist in the implementation of such policy objectives. While land use change is an important driver of changes in ecosystem services over time, most prioritization studies do not account for land use change or only assess negative effects. We assessed the effect of land use change on ecosystem services in Europe for a 40-year period and the subsequent consequences for identifying priority areas. We quantified five services under current and future land use. For both time frames all sites were ranked based on their service provision using Zonation. To assess the sensitivity of the prioritization to land use change we compared the location of priority areas and the level of ecosystem services within priority areas in the two time frames. Land use change shifts the location of priority areas. Overlap in priority areas over time ranges from 34.8% overlap for the top 1% priority areas to 75.4% overlap for the top 25% priority areas. Moreover, land use change affects the availability of ecosystem services in top priority areas: Compared to current top priority areas, future top ranked priority areas have lower pollination and carbon sequestration capacity. Capacity of erosion control and flood control are stable over time and nature-based tourism increases. Shifts in priority areas are driven not only by local land use change, but also by land use change in the wider landscape, through connectivity effects and shifts in the relative importance of sites. The real management challenge lies in maintaining ecosystem services within landscapes where production and conservation objectives need to be reconciled and priority areas are affected by both local and landscape wide changes in land use. Moreover, we show that land use change has both local positive and negative effects on ecosystem service priorities, indicating that prioritization studies should not solely incorporate negative effects of land use change
Can we explain running-related injury preventive behavior? A path analysis
Background: Behavioral and social science theories/models have been gaining attention in sports injury prevention. Objective: To investigate the potential of the Theory of Planned Behavior in explaining running-related injury preventive behavior. Methods: Six-month prospective cohort study based on data gathered from a randomized controlled trial. From a total of 1512 invited trail runners, 232 were included in this study. Preventive behaviors and their determinants were assessed at baseline and two and six months after baseline. Five-point Likert scales were used to assess the determinants of preventive behavior. A Bayesian path analysis was conducted applying mixed models and mediation analysis. Results: A 1-point increase in intention, attitude, subjective norm, and perceived behavioral control predicted an increase of 54% (95% Bayesian credible interval [BCI]: 38, 71) in the rate of performing running-related injury preventive behavior, explaining 49% (R-2 0.49; 95% BCI: 0.41, 0.56) of the variance around preventive behavior. Intention and perceived behavioral control predicted running-related injury preventive behavior directly, while 40% (95% BCI: 21, 61) and 44% (95% BCI: 20, 69) of the total effect of attitude was mediated by intention and perceived behavioral control, respectively. Attitude, subjective norm, and perceived behavioral control predicted intention. Conclusions: The Theory of Planned Behavior may have the potential to explain half of the variance around running-related injury preventive behavior and intention. Therefore, such theory may be considered a relevant and useful tool in developing, investigating, and/or implementing programs aimed at preventing running-related injuries. (C) 2021 Associacao Brasileira de Pesquisa e Pos-Graduacao em Fisioterapia. Published by Elsevier Espana, S.L.U. All rights reserved
The Association Between the Acute:Chronic Workload Ratio and Running-Related Injuries in Dutch Runners: A Prospective Cohort Study
Objective To investigate the association between the acute:chronic workload ratio (ACWR) and running-related injuries (RRI). Methods This is a secondary analysis using a database composed of data from three studies conducted with the same RRI surveillance system. Longitudinal data comprising running exposure (workload) and RRI were collected biweekly during the respective cohorts' follow-up (18-65 weeks). ACWR was calculated as the most recent (i.e., acute) external workload (last 2 weeks) divided by the average external (i.e., chronic) workload of the last 4, 6, 8, 10 and 12 weeks. Three methods were used to calculate the ACWR: uncoupled, coupled and exponentially weighted moving averages (EWMA). Bayesian logistic mixed models were used to analyse the data. Results The sample was composed of 435 runners. Runners whose ACWR was under 0.70 had about 10% predicted probability of sustaining RRI (9.6%; 95% credible interval [CrI] 7.5-12.4), while those whose ACWR was higher than 1.38 had about 1% predicted probability of sustaining RRI (1.3%; 95% CrI 0.7-1.7). The association between the ACWR and RRI was significant, varying from a small to a moderate association (1-10%). The higher the ACWR, the lower the RRI risk. Conclusions The ACWR showed an inversely proportional association with RRI risk that can be represented by a smooth L-shaped, second-order, polynomial decay curve. The ACWR using hours or kilometres yielded similar results. The coupled and uncoupled methods revealed similar associations with RRIs. The uncoupled method presented the best discrimination for ACWR strata. The EWMA method yielded sparse and non-significant results
Effect of unsupervised home based proprioceptive training on recurrences of ankle sprain: randomised controlled trial
Objective To evaluate the effectiveness of an unsupervised proprioceptive training programme on recurrences of ankle sprain after usual care in athletes who had sustained an acute sports related injury to the lateral ankle ligament
Evolution of Poliovirus Type I during 5.5 Years of Prolonged Enteral Replication in an Immunodeficient Patient
AbstractPoliovirus type 1 was isolated from an immunodeficient patient 4 days after onset of paresis (IS1) and after 5.5 years of prolonged enteral virus replication (IS2). Antigenic characterization revealed that IS1 was Sabin 1-like, whereas IS2 reacted like poliovirus 1 Mahoney. Complete genomic sequencing demonstrated the phylogenetic relationship (94.9% identity) of IS1 and IS2, which differed from the most closely related Sabin 1 by 5.4 and 8.3%, respectively. Both isolates had revertant-like mutations at nucleotides 480 and 6203. Deduced amino acid sequences indicated significant changes between IS1 and IS2 at the neutralizing antigenic site 1. Prolonged enteral replication, evolution, and shedding of poliovirus by immunodeficient patients should be considered in the poliovirus eradication strategy
Effectiveness of a school-based physical activity-related injury prevention program on risk behavior and neuromotor fitness a cluster randomized controlled trial
<p>Abstract</p> <p>Background</p> <p>To investigate the effects of a school-based physical activity-related injury prevention program, called 'iPlay', on risk behavior and neuromotor fitness.</p> <p>Methods</p> <p>In this cluster randomized controlled trial 40 primary schools throughout the Netherlands were randomly assigned in an intervention (n = 20) or control group (n = 20). The study includes 2,210 children aged 10-12 years.</p> <p>The iPlay-intervention takes one school year and consists of a teacher manual, informative newsletters and posters, a website, and simple exercises to be carried out during physical education classes.</p> <p>Outcomes measures were self-reported injury preventing behavior, self-reported behavioral determinants (knowledge, attitude, social-influence, self-efficacy, and intention), and neuromotor fitness.</p> <p>Results</p> <p>The iPlay-program was not able to significantly improve injury-preventing behavior. The program did significantly improve knowledge and attitude, two determinants of behavior. The effect of the intervention-program on behavior appeared to be significantly mediated by knowledge and attitude. Improved scores on attitude, social norm, self-efficacy and intention were significantly related to changes in injury preventing behavior. Furthermore, iPlay resulted in small non-significant improvements in neuromotor fitness in favor of the intervention group.</p> <p>Conclusion</p> <p>This cluster randomized controlled trial showed that the iPlay-program did significantly improved behavioral determinants. However, this effect on knowledge and attitude was not strong enough to improve injury preventing behavior. Furthermore, the results confirm the hypothetical model that injury preventing behavior is determined by intention, attitude, social norm and self-efficacy.</p> <p>Trial number</p> <p>ISRCTN78846684</p
- âŚ