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191.
Coral Falco Javier Molina-García Octavio Álvarez Isaac Estevan 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(4):381-382
The aim of this study was to investigate the effects of target distance on temporal and impact force parameters that are important performance factors in taekwondo kicks. Forty-nine taekwondo athletes (age = 24.5 ± 5.9 years; mass = 79.9 ± 10.8 kg) were recruited: 13 male experts, 21 male novices, 8 female experts, and 6 female novices. Impact force, reaction time, and execution time were computed. Three-way repeated measure ANOVAs revealed significant ‘distance’ effect on impact force, reaction time, and execution time (p = 0.001). Comparisons between distance conditions revealed that taekwondo athletes kicked with higher impact force from short distance (17.6 ± 7.5 N/kg) than from long distance (13.1 ± 5.7 N/kg) (p < 0.001), had lower reaction time from short distance (498 ± 90 ms) and normal distance (521 ± 111 ms) than from long distance (602 ± 121 ms) (p < 0.001), and had lower execution time from short distance (261 ± 69 ms/m) than from normal distance (306 ± 105 ms/m) or from long distance (350 ± 106 ms/m) (p = 0.003 and p < 0.001, respectively). In conclusion, target distance affected the kick performance; as distance increases, impact force decreased and reaction time increased. Therefore, when reaction to a simple visual stimulus is needed, kicking from a long distance is not recommended, as longer time is required to respond. 相似文献
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调查发现,绝大多数进城务工人员子弟的品德状况较好。他们对社会有积极的认知,已感受到社会对所在群体——流动人口的关心,回报社会和亲人的愿望强烈;对受教育的重要性有乒确认识,迫切希望通过受教育改变自己和家人的命运;关注自身的生命安全。但是,部分进城务工人员子弟也存在社会交往和情绪情感状态不良等值得关注的现象。 相似文献
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Thirteen Ph.D. students took part in interviews focussed on the nature of their own learning of mathematics. In analysing these interviews an unexpected category emerged concerning the students awareness of others as having particular types of learning goal. In this paper we explore the three levels which we discerned within this category and link them to the notion of cognitive empathy. We suggest that differences in ones own cognitive style are linked to differences in the ability to empathise with those who have alternative learning goals. We also consider how these two features – cognitive style and cognitive empathy – may come to be linked. 相似文献
198.
Relative Effects of English Proficiency on General Admissions Tests Versus Subject Tests 总被引:1,自引:0,他引:1
The increasing linguistic diversity of the United States student population has brought to the forefront problems in the interpretation of test scores for non-native speakers of English in graduate admissions. The degree to which test scores reflect English proficiency was studied using data on N = 451 students whose native language was Spanish. They had taken the GRE, English proficiency tests, and the PAEG, a test in Spanish used for admission to graduate schools in Puerto Rico. Regression analyses revealed that the proportion of variance explained by the English proficiency terms (independent of developed skills measured in Spanish) was highest for the GRE verbal test (34%), lowest for the quantitative test (8%) and intermediate for the analytical test (16%), the Psychology (18%) and Biology (17%) Subject tests. These findings are discussed in light of efforts to increase access to higher education for Hispanic students. 相似文献
199.
Raquel Gilar María de los ngeles Martínez Ruiz Juan Luis Castejn Costa 《Teaching and Teacher Education》2007,23(8):1334-1344
Our work is based on the study of learning strategies used by a group of trainee teachers in a real learning situation, and how this use of strategies influences the results of the learning process. We use a diary as a tool to assess the learning strategies and compare the results obtained with those using an inventory. Our findings indicate that the deliberate use of strategies (measured by diaries) has a positive effect on knowledge acquisition, with the qualitative analysis method of the verbal protocols noted in the diaries proving more valuable than the use of traditional inventories. 相似文献
200.
Snia Maria Pallaoro Moojen Hosana Alves Gonalves Ana Bassa Ana Luiza Navas Graciela de Jou Emlio Snchez Miguel 《Annals of dyslexia》2020,70(1):115-140
The aim of this study was to investigate (1) whether a sample of highly educated individuals with dyslexia living under optimal personal, educational, cultural, and socioeconomic conditions continues to display core deficits in reading and writing skills during adulthood (extending prior results in Dutch, English, Hebrew, and Spanish to the Portuguese writing system); (2) whether these individuals can compensate for the effects of persistent core deficits when reading complex academic texts; (3) which cognitive resources, such as reading strategies, are used as compensatory mechanisms; and (4) whether quality of life is affected in these individuals. These questions were examined in a sample of 28 adults with dyslexia (DG) and 28 control participants (CG) paired by sex, age, education, and occupation, with a mean of 15 years of formal education. Participants completed measures of phonological awareness; decoding of syllables, words, and pseudowords; writing; reading comprehension (inferential and literal questions, recall, and sensitivity to the rhetorical structure of the target text); and quality of life. Results showed that (1) core deficits associated with dyslexia persisted into adulthood: participants with dyslexia performed worse than control subjects at all levels of phonological awareness, reading (except word reading accuracy), and spelling; (2) the groups did not differ on any measures of reading comprehension, suggesting a compensation of core deficits; (3) three compensatory mechanisms were identified: slower reading, use of text structure, and verbal ability; (4) participants with dyslexia required more family support and professional help throughout their educational careers, and had more depressive symptoms than control subjects. 相似文献