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851.
Abstract

A major challenge for teacher preparation programs and future teachers is learning to work skillfully with the diversity of children in American classrooms. This paper describes a tool developed to address this challenge: the Learning and Teaching Assessment System (LTAS). The LTAS is a performance‐based, curriculum‐embedded assessment tool designed to uncover young children's strengths in different curricular areas as well as their approaches to learning. Developed for use with children 3–8 years of age, the LTAS helps teachers understand what children know in relation to key concepts in the different disciplines as well as how they learn in order to further their learning in subsequent days and weeks of teaching. The development of the LTAS is based primarily on two theoretical frameworks: Leont'ev's activity theory and Gardner's theory of multiple intelligences. To examine the efficacy of the LTAS in its proposed objectives, a pilot study was conducted; results point to the potential of the LTAS for helping student teachers uncover new information about children to guide future instruction.  相似文献   
852.
3D技术风行,李安也来赶个时髦。奥斯卡金牌导演李安执导的3D视效大片《少年派的奇幻漂流》,在纽约影展被《时代》杂志盛赞为下一个《阿凡达》。影片在创造视觉奇观的同时也给观众带来巨大的心灵震撼。其讲述的是一名16岁男孩的故事,他和一只老虎同住一艘救生艇,展开横渡太平洋的旅程。"通常我拍片时,不会考虑风格,而是思考角色需要什么。我会贴  相似文献   
853.
During election campaigns, candidates, parties, and media share their relevance on Twitter with a group of especially active users, aligned with a particular party. This paper introduces the profile of “party evangelists,” and explores the activity and effects these users had on the general political conversation during the 2015 Spanish general election. On that occasion, the electoral expectations were uncertain for the two major parties (PP and PSOE) because of the rise of two emerging parties that were disrupting the political status quo (Podemos and Ciudadanos). This was an ideal situation to assess the differences between the evangelists of established and emerging parties. The paper evaluates two aspects of the political conversation based on a corpus of 8.9 million tweets: the retweeting effectiveness, and the sentiment analysis of the overall conversation. We found that one of the emerging party’s evangelists dominated message dissemination to a much greater extent.  相似文献   
854.
The COVID-19 context has created the most severe disruption to education systems in recent history. Its impact on child development was estimated comparing two cohorts of 4- to 6-year-old Uruguayan children: control (n = 34,355, 48.87% girls) and COVID cohort (n = 30,158, 48.95% girls) assessed between 2018 and 2020 in three waves, by a routinely administered school readiness instrument in public preschools. Ethnicity information is not available. For the COVID cohort, losses were observed in Motor and Cognitive development, Attitudes towards learning, and Internalizing behavior (range 0.13 – 0.27 SD). Losses were less pronounced among children from higher socioeconomic schools. These results extend the literature on the consequences of the pandemic on learning and early child development.  相似文献   
855.
Additivity-related assumptions have been proven to modulate blocking in human causal learning. Typically, these assumptions are manipulated by means of pretraining phases (including exposure to different outcome magnitudes), or through explicit instructions. In two experiments, we used a different approach that involved neither pretraining nor instructional manipulations. Instead, we manipulated the causal structure in which the cues were embedded, thereby appealing directly to the participants’ prior knowledge about causal relations and how causes would add up to yield stronger outcomes. Specifically, in our “different-system” condition, the participants should assume that the outcomes would add up, whereas in our “same-system” condition, a ceiling effect would prevent such an assumption. Consistent with our predictions, Experiment 1 showed that, when two cues from separate causal systems were combined, the participants did expect a stronger outcome on compound trials, and blocking was found, whereas when the cues belonged to the same causal system, the participants did not expect a stronger outcome on compound trials, and blocking was not observed. The results were partially replicated in Experiment 2, in which this pattern was found when the cues were tested for the second time. This evidence supports the claim that prior knowledge about the nature of causal relations can affect human causal learning. In addition, the fact that we did not manipulate causal assumptions through pretraining renders the results hard to account for with associative theories of learning.  相似文献   
856.
Abstract

Individuals with impaired glucose tolerance (IGT) are at greater risk of developing diabetes than in normoglycaemia. The aim of this study was to examine the effects of 12-weeks exercise training in obese humans with IGT. Eleven participants (6 males and 5 females; 49±9 years; mean Body Mass Index (BMI) 32.4 kg · m?2), completed a 12-week brisk walking intervention (30 min per day, five days a week (d · wk?1), at 65% of age-predicted maximal heart rate (HRmax). Anthropometric measurements, dietary intake, pulse wave velocity (PWV, to determine arterial stiffness) and blood pressure (BP) were examined at baseline and post intervention. Fasting blood glucose, glycosylated haemoglobin, insulin, blood lipids, indices of oxidative stress and inflammation (lipid hydroperoxides; superoxide dismutase; multimeric adiponectin concentration and high-sensitivity C-reactive protein) were also determined. Post intervention, PWV (9.08±1.27 m · s?1 vs. 8.39±1.21 m · s?1), systolic BP (145.4±14.5 vs. 135.8±14.9 mmHg), triglycerides (1.52±0.53 mmol . L?1 vs. 1.31±0.54 mmol . L?1), lipid hydroperoxides (1.20±0.47 μM · L?1 vs. 0.79±0.32 μM · L?1) and anthropometric measures decreased significantly (P < 0.05). Moderate intensity exercise training improves upper limb vascular function in obese humans with IGT, possibly by improving triglyceride metabolism, which may subsequently reduce oxidative stress. These changes were independent of multimeric adiponectin modification and alterations in other blood biomarkers.  相似文献   
857.
Abstract

In this longitudinal study, we examined the extent to which perceived coach- and peer-created motivational climates are associated with athlete-group cohesion and satisfaction with participation among Spanish soccer players competing in the Third National Division. Multilevel modelling analyses showed that perceived coach-created task climate was positively related to perceived cohesion and players’ satisfaction with their participation within their team. Also, perceived peer-created task climate related positively to perceived cohesion. The results indicate the importance of considering peer-related aspects of the motivational climate in addition to considering the coach-related aspects of the motivational climate when examining motivational group dynamics in sport.  相似文献   
858.
859.
Abstract

This study compared the physiological responses (oxygen consumption and energy expenditure) of Nordic Walking to regular walking under field-testing conditions. Eleven women (M age = 27.1 years, SD = 6.4) and 11 men (M age = 33.8 years, SD = 9.0) walked 1,600 m with and without walking poles on a level, 200-m track. For women, Nordic Walking resulted in increased oxygen consumption (M = 14.9 ml·kg1·min?1 , SD = 3.2 vs. M = 17.9 ml·kg1·min?1 , SD = 3.5; p < .001), caloric expenditure (M = 4.6 kcal·min?1 , SD = 1.2 vs. M = 5.4 kcal·min?1 , SD = 1.2; p < .001), and heart rate (M = 113.7 bpm, SD = 12.0 vs. M = 118.7 bpm, SD = 14.8; p < .05) compared to regular walking. For men, Nordic Walking resulted in increased oxygen consumption (M = 12.8 ml·kg1·min?1 , SD = 1.8 vs. M = 15.5, SD = 3.4 ml·kg1·min?1; p < .01), caloric expenditure (M = 5.7 kcal·min?1 , SD = 1.3 vs. M = 6.9 kcal·min?1 , SD = 1.8; p < .001), and heart rate (M = 101.6 bpm, SD = 12.0 bpm vs. M = 109.8 bpm, SD = 14.7; p < .01) compared to regular walking. Nordic Walking, examined in the field, results in a significant increase in oxygen use and caloric expenditure compared to regular walking, without significantly increasing perceived exertion.  相似文献   
860.
Spending leisure time with deviant peers may have strong influences on adolescents' delinquency. The current 3-wave multi-informant study examined how parental control and parental prohibition of friendships relate to these undesirable peer influences. To this end, annual questionnaires were administered to 497 Dutch youths (283 boys, mean age = 13 years at baseline), their best friends, and both parents. Cross-lagged panel analyses revealed strong longitudinal links from contacts with deviant peers to adolescent delinquency, but not vice versa. Parent-reported prohibition of friendships positively predicted contacts with deviant peers and indirectly predicted higher adolescent delinquency. Similar indirect effects were not found for parental control. The results suggest that forbidden friends may become "forbidden fruit," leading to unintended increases in adolescents' own delinquency.  相似文献   
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