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71.
72.
This study explores new directions to study and combine measurements of instructional expertise and teachers’ interpersonal relationships with students. The sample comprises 34 in-service teachers. The My Teacher questionnaire (MTQ) was used to operationalize teachers’ instructional expertise. The Questionnaire of Teacher Interaction (QTI) was used to describe teachers’ interpersonal relationships with students. Hypotheses were tested using circular mixed-effects models. Results indicate that teachers’ interpersonal relationships differ at successive levels of instructional expertise. Results further indicated that increases in instructional expertise are associated with a sharp decrease in the within-class variance in interpersonal relationships. Specifically, the higher teachers’ instructional expertise, the more teachers' interpersonal relationships are described as “directing” and “helpful” by all students in the class. 相似文献
73.
《Sport Management Review》2020,23(3):536-547
The identification and development of players in English professional football has become an increasingly significant topic of debate given the historical perceived underperformance of the English national team at international tournaments. To enhance understanding of the challenges and barriers experienced by English youth footballers, the authors explore the developmental experiences of English professional football players from different levels of the English football pyramid. Professional players (N = 11) from football clubs in the top four professional divisions in England took part in individual semi-structured interviews, which were analysed inductively using thematic analysis. The data revealed three interrelated themes that were perceived to mediate player identification and development pathways at professional clubs. Pathways for young players to progress and experience first-team competitive football differed when the level of the league that the players operated within was considered, with significant issues also raised relating to the suitability of the under 21 league structure, the importance attached to the educational welfare of young players, and variations in the identification of player attributes. This study sheds new light on the priorities and processes of talent development and education provision in English football. 相似文献
74.
目的观察12周惯性哑铃练习对轻度认知损害(MCI)老年人认知功能、身体活动能力、生活质量和睡眠质量的影响,并探讨认知改善与其他功能改变之间的关系。方法将45名MCI老年人随机分为干预组(n=22)和对照组(n=23)。干预组受试者进行惯性哑铃练习(3次/周,60 min/次,持续12周),对照组不进行运动干预。结果 12周后,干预组受试者阿尔茨海默病评定量表-认知部分(ADAS-Cog)总分/指令得分、蒙特利尔认知评估量表(MoCA)评分、起立行走计时(TUG)和SF-36健康调查问卷(SF-36)心理总得分均显著改善(均P<0.05)。与对照组相比,干预组受试者ADAS-Cog总分/单词回忆得分/注意力得分、简明精神量表(MMSE)评分、TUG和匹兹堡睡眠指数(PSQI)的改善程度均具有显著差异(P<0.05或P=0.05)。偏相关分析结果显示,SF-36心理总得分改变(r=-0.712)、PSQI改变(r=-0.380)与认知改善程度均呈显著负相关。结论 12周惯性哑铃练习可显著提高MCI老年人的认知功能,并对其移动能力、生活质量和睡眠质量具有积极影响,且心理和睡眠改变程度可能影响认知功能的改善效果。 相似文献
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76.
This case study explores how a group of Grade 9 students engaged in sociopolitical discourses and actions in a science class in a mostly indigenous student school in Nepal. The study used sociopolitical consciousness (SPC) as a framework to document and understand indigenous students’ SPC-oriented science interactions and subsequent social change actions. We used ethnographic methods of data collection over 6 months. The study focused on the actions of 4 girls and 2 boys belonging to the indigenous Tharu group. Data were analyzed using iterative qualitative methods. The study findings show that students are capable of engaging in critical thinking, critical reflecting, and taking actions for social change. Additionally, students are competent to link their experiences with social, structural, and political discrimination to the relevant science content they learn. The study presents four thematic findings related to SPC and science teaching and learning: Fostering social justice awareness in science class, fostering structural understanding of inequities in sickle cell disease, fostering sociopolitical actions for sickle cell disease, and the teacher's activist pedagogy for SPC in science learning. Implications of the study are that culturally relevant pedagogy helps indigenous students to become sociopolitically more aware of the links between science and social change. Adding aspects of critical pedagogies in science teaching could encourage students to become more sociopolitically reflective about science learning. 相似文献
77.
中国传统村落根植于中华民族农耕文明,其价值蕴藏丰富的文化内涵。中国传统村落是世界上规模最大的农耕文明聚落遗产群,是记载古代社会变迁、文化融合的恢弘史诗,是当今世界极其丰富的自然人文旅游资源。中国传统村落发展存在的诸多问题,提出保护中国传统村落需秉持创新发展的理念,以留住乡愁。 相似文献
78.
Shoudong Wang Shulin Liu Jie Wang Kengo Yokosho Bin Zhou Ya-Chi Yu Zhi Liu Wolf B Frommer Jian Feng Ma Li-Qing Chen Yuefeng Guan Huixia Shou Zhixi Tian 《国家科学评论(英文版)》2020,7(11):1776
Soybean accounts for more than half of the global production of oilseed and more than a quarter of the protein used globally for human food and animal feed. Soybean domestication involved parallel increases in seed size and oil content, and a concomitant decrease in protein content. However, science has not yet discovered whether these effects were due to selective pressure on a single gene or multiple genes. Here, re-sequencing data from >800 genotypes revealed a strong selection during soybean domestication on GmSWEET10a. The selection of GmSWEET10a conferred simultaneous increases in soybean-seed size and oil content as well as a reduction in the protein content. The result was validated using both near-isogenic lines carrying substitution of haplotype chromosomal segments and transgenic soybeans. Moreover, GmSWEET10b was found to be functionally redundant with its homologue GmSWEET10a and to be undergoing selection in current breeding, leading the the elite allele GmSWEET10b, a potential target for present-day soybean breeding. Both GmSWEET10a and GmSWEET10b were shown to transport sucrose and hexose, contributing to sugar allocation from seed coat to embryo, which consequently determines oil and protein contents and seed size in soybean. We conclude that past selection of optimal GmSWEET10a alleles drove the initial domestication of multiple soybean-seed traits and that targeted selection of the elite allele GmSWEET10b may further improve the yield and seed quality of modern soybean cultivars. 相似文献
79.
Students in the same class can differ considerably in their perceptions of teaching quality, but little is known about the drivers of this lack of agreement. In this study, we relied on within-class consensus as a measure of agreement in students' perceptions and explored both student-reported predictors (Sample 1) and teacher-reported predictors (Sample 2) of consensus in students’ ratings of six goal structures dimensions (task, autonomy, recognition, grouping, evaluation, time). Classroom-level results from multi-level models indicated that student-perceived differential teacher treatment negatively predicted consensus regarding evaluation, as well as achievement heterogeneity, whereas instructional clarity positively predicted consensus for recognition, grouping, and evaluation, as well as class-average achievement (Sample 1). Mediating effects of achievement heterogeneity and achievement were not statistically significant. In Sample 2, negative effects of teacher-reported emotional exhaustion and teaching-related anxiety on consensus were observed for several dimensions. Teaching-related enjoyment had no effect. 相似文献
80.
Head Start is the largest early childhood education program in the US. Echoing patterns emerging in ECE world-wide, Head Start has dramatically changed. Greater emphasis is now placed on kindergarten readiness, child and teacher assessment, professionalization, and increased competition for program funding. Drawing on a mixed methods research design, a case study was conducted that explores the nature and effects of these changes on teachers and the work of teaching within Head Start. Strong evidence of work intensification was found, a topic little explored within the wider ECE literature. In the light of this finding the authors question the model of professionalism that now dominates ECE reform. 相似文献