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Educational Studies in Mathematics - Teaching mathematical modeling is a demanding task. Thus, fostering teachers’ competencies in this regard is an essential component of teacher education.... 相似文献
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Emiliya S. Egorova Alyona V. Borisova Leysan J. Mustafina Alina A. Arkhipova Rashid T. Gabbasov Anastasiya M. Druzhevskaya 《Journal of sports sciences》2014,32(13):1286-1293
AbstractResearch concerned with predictors of talent in football has highlighted a number of potentially important and partially inherited measures such as body size, anaerobic power, aerobic capacity, agility, psychological profile, game intelligence and susceptibility to injuries. Genotyping for performance-associated DNA polymorphisms at an early age could be useful in predicting later success in football. The aim of the study was to investigate individually and in combination the association of common gene polymorphisms with football player’s status. A total of 246 Russian football players and 872 controls were genotyped for 8 gene polymorphisms, which were previously reported to be associated with athlete status. Four alleles (ACE D, ACTN3 Arg577, PPARA rs4253778 C and UCP2 55Val) were first identified, showing discrete associations with football player’s status. Next, we determined the total genotype score (TGS, from the accumulated combination of the 4 polymorphisms, with a maximum value of 100 for the theoretically optimal polygenic score) in athletes and controls. The mean TGS was significantly higher in football players (52.0 (17.6) vs. 41.3 (15.5); P < 0.0001) than in controls. These data suggest that the likelihood of becoming a football player depends on the carriage of a high number of “favourable” gene variants. 相似文献
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Romania is perceived as the most corrupt EU member state according to Transparency International Corruption Perception Index. In 2008–2009, a grassroots coalition of civil society organizations and education stakeholders created the Coalition for Clean Universities which organized the first assessment of integrity of the Romanian higher education system, The Coalition evaluated 42 state universities on the basis of an original methodology, in terms of Administrative Integrity, Academic Integrity, Democratic Governance, Academic Governance and Sound Finance for a time internal of one academic year. The evaluation found systemic problems in the organization and functioning of university life, and attributed them to the failure to build accountability systems at university level following decentralization of higher education after 1989. The results, in the form of a ranking of universities, were made public and hotly debated, creating a major incentive for universities to compete for a better public image, and therefore for reform of their practices. 相似文献
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Alina Eugenia Iancu Andrei Rusu Cristina Măroiu Roxana Păcurar Laurențiu P. Maricuțoiu 《Educational Psychology Review》2018,30(2):373-396
We conducted a meta-analysis to investigate the effectiveness of interventions aimed at reducing teacher burnout. Online and reference list searches yielded 513 unique results, and the final sample contains 23 controlled trials (19 journal articles and 4 unpublished dissertations). More than two thirds of the studies had optimal quality, and the risk of bias was not related to the overall effectiveness of the interventions. The overall effects were small, but statistically significant (d = 0.18, SE = 0.05, Z = 3.26, p < 0.001, k = 23). Separate analyses on each burnout component showed similar intervention effects on emotional exhaustion and personal accomplishment, but almost null effects on depersonalization (d = 0.03, SE = 0.06, Z = 0.53, p > 0.05, k = 11). Additional moderator analyses suggested that mindfulness interventions had significant effects on exhaustion and personal accomplishment. Interventions on primary and middle school teachers reported effect sizes below the average effect. Similar to previous findings, interventions that lasted less than 1 month had the smallest levels of efficacy. 相似文献
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Daphne Blunt Bugental Jay Blue Victoria Cortez Karen Fleck Alina Rodriguez 《Child development》1992,63(4):774-786
Children between the ages of 5 and 10 years watched a videotape of a child having a routine medical exam. Embedded within the scenes were systematic variations of depicted facial affect shown by doctor and child. Measures were taken of autonomic reactions and information-processing errors in response to positive, neutral, and negative affective cues. For 5-6-year-olds, processing errors were greatest in the negative affect condition. Additionally, peak increases in heart rate (HR) and skin conductance level (SCL) were demonstrated by 5-6-year-olds in response to negative affect shown by the witnessed child; increases in HR were in turn predictive of processing errors. Older children (9-10 years) showed trends reflecting reduced processing errors in response to witnessed negative affect. It was suggested that younger children respond to salient threat cues with a "defensive" response pattern that is relatively adaptive at younger but not older ages. 相似文献
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Research Findings: This qualitative study examined how Head Start teachers thought about children’s early literacy and how they enacted their thinking in a year-long curriculum reform effort. Data collected included interviews, observations, questionnaires, concept maps, and teachers’ reflections on implementation. The results indicated that as teachers implemented the new curriculum, a number of factors influenced their instructional practice. Four cross-case themes emerged: Volunteering to Change, Teachers’ Perspectives About Early Literacy, The Relationships Within Teaching Teams, and The Head Start Context. Practice or Policy: Findings are discussed as they relate to improving early literacy instruction through the use of curriculum. Implications for practitioners and teacher educators are outlined, including the importance of addressing gaps in teacher knowledge, facilitating skill development, and influencing teachers’ motivation to engage in change. Equally important to consider are factors that may influence a teacher’s readiness to change his or her practice and emphasizing the need for supportive environments as teachers work to enhance children’s early literacy development. 相似文献
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This study investigates a sequence of item response theory (IRT) true score equatings based on various scale transformation approaches and evaluates equating accuracy and consistency over time. The results show that the biases and sample variances for the IRT true score equating (both direct and indirect) are quite small (except for the mean/sigma method). The biases and sample variances for the equating functions based on the characteristic curve methods and concurrent calibrations for adjacent forms are smaller than the biases and variances for the equating functions based on the moment methods. In addition, the IRT true score equating is also compared to the chained equipercentile equating, and we observe that the sample variances for the chained equipercentile equating are much smaller than the variances for the IRT true score equating with an exception at the low scores. 相似文献
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This article explores the British and West German public service radio’s abilities to reflect on and to address the specific needs and expectations of migrant groups in their programmes between the 1960s and 1980s. Mechanisms of social inclusion and exclusion alike can be investigated here. Empirically, it is based on comparisons of radio broadcasts on and for different immigrant communities, produced by BBC Radio Leicester on/for the post-war Asian migrants in England and by West German public service broadcasting on/for ‘Gastarbeiter’ (foreign workers) as well as for ‘Spätaussiedler’ (German repatriates from East Europe). Radio is studied as an agent of identity management and citizenship education. Not only did radio talk about migrants and migration to introduce these topics and the newcomers to the local population. It also offered airtime to selected migrant communities to cater for their needs and interests as well as to facilitate their difficulties of adjusting to an unfamiliar environment. 相似文献