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51.
Hurricane Katrina had, and continues to have, a devastating effect on every student who was living in the southeastern quadrant of Louisiana at the beginning of the 2005–2006 school term. African American public school students who were enrolled in gifted and talented programs were particularly impacted by the storm, although they comprised a healthy proportion of gifted and talented students statewide before Katrina struck. Following the hurricane, 20% of all of the gifted and talented students in Louisiana were displaced. Because the majority of that displacement occurred among the predominantly African American public school population in New Orleans, gifted and talented program enrollment among African American students was reduced by 47%. This article examines the circumstances in 4 Southeastern Louisiana parishes before and after Hurricane Katrina that contributed to the drastic reduction in gifted and talented African American participants. Included are suggestions for recovering this population of students, and for increasing proportional distribution of identified gifted and talented students statewide.  相似文献   
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The relationship between teaching and learning is represented in contemporary higher education research which has looked at the correlations between students’ approaches to learning and teachers’ approaches to teaching. This article proposes a rethinking of this relationship, building on a critical realist perspective. Here, the teaching–learning interaction is argued to be emergent from the activities of teaching and of learning, and it is this emergent property which provides the explanatory mechanism for the relationship between them. Support for this position is located in recent work by Paul Ashwin and also in the sociology of Margaret Archer.  相似文献   
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Abstract

By 1986 (a decade after their invention) microprocessors had diffused to about 18 percent of all U.S. households and 6 percent of U.S. farmers. In addition to general consumer uses, farm households in the United States utilize microcomputers for such small business applications as record keeping, word‐processing, payroll handling, etc. A special application of microprocessor technology occurred in 1980–1981 when 200 Kentucky farmers participated in a trial of the Green Thumb Box, a video‐text system providing market, weather, and technological information. The nature of the information needs of U.S. farm people seems to fit well with the new information technologies built around the microprocessor, although little of this potential has yet been realized. Since that experiment, videotex has shown itself to have doubtful value as a channel for the distribution of agricultural information, leaving open the question of what might be the best technological vehicle for this audience. Research is needed on two issues: (1) the adoption and use of the new communication technologies, and (2) their social impacts on rural society.  相似文献   
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This research contrasts two different conceptions, fields and pathways, of individual information behavior in context. These different approaches imply different relationships between actors and their information environments and, thus, encapsulate different views of the relationship between individual actions and contexts. We discuss these different theoretical views, then empirically compare and contrast them. The operationalization of these conceptions is based on different analytic treatments of the same raw data: a battery of three questions based on respondent’s unaided recall of the sources they would consult for information on inherited cancers, a particularly rich information seeking problem. These operationalizations are then analyzed in a nomological network of related concepts drawn from an omnibus survey of 882 adults. The results indicated four clusters for fields and 16 different pathways, indicating increased fragmentation of information environments, with different underlying logics and active ingredients, although the use of the Internet appears to be an emerging common theme. The analysis of the nomological network suggests that both approaches may have applications for particular problems. In the implications, we compare and contrast these approaches, discussing their significance for future methodological, analytical, and theoretical developments.  相似文献   
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This study assessed whether a new, closed-skill dribbling or sprinting task could predict attacking performance in soccer. Twenty-five male players were recruited from the Londrina Junior Team Football Academy in Brazil and asked to either dribble the ball or sprint through five custom circuits that varied in average curvature (0–1.37 radians.m?1). These measures were then validated using a realistic one vs. one competition in which each player acted as attacker or defender in turn (N = 1330 bouts). Sprinting (ICC = 0.96) and dribbling (ICC = 0.97) performances were highly repeatable for individual players. Average dribbling speed decreased non-linearly with increasing circuit curvature (F = 239.5; P < 0.001) from 5.19 ± 0.11 ms?1 on the straightest path to 2.13 ± 0.03 ms?1 on the curviest. Overall, dribbling but not sprinting performance predicted attacking success in the one vs. one competition, explaining more than 50% of the variation in attacking success alone (rp = 0.70; P < 0.001). In conclusion, our new closed-skill dribbling assessment is a valid and reliable protocol to predict a soccer player’s success in attacking performance in one vs. one situation, and can be used to identify talented players.  相似文献   
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她是唯一     
Robbie Williams是公认的反叛才子,以“坏孩子”的绰号闻名流行乐坛,天生就是一位表演艺人。由TakeThat时期到现在的不同阶段,  相似文献   
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