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排序方式: 共有290条查询结果,搜索用时 15 毫秒
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Amanda Cremone Desiree M. de Jong Lauri B. F. Kurdziel Phillip Desrochers Aline Sayer Monique K. LeBourgeois Rebecca M. C. Spencer Jennifer M. McDermott 《Child development》2018,89(2):e42-e59
Temperamental negative affect and insufficient sleep have been independently associated with behavior problems during early childhood. However, it is unknown whether these factors interact to contribute to behavioral difficulties in young children. The current study examined the interactions between temperamental negative affect and both sleep onset time and sleep midpoint, assessed by actigraphy, in predicting externalizing and internalizing behaviors in a sample of 117 children (34–69 months of age). Children with high temperamental negative affect and either later sleep onset time or later sleep midpoint were more likely to exhibit externalizing and internalizing behaviors. These results emphasize the association between temperamental negative affect and behavioral difficulties, particularly for children with insufficient sleep. 相似文献
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A synthesis of the literature related to identity processes among American ethnic and racial minority children and adolescents is presented. In general, ethnic and racial identification, preferences, and attitudes have been studied among younger children, while the constructs of ego identity and ethnic identity have been generally studied among adolescents. The literature is unequally distributed across ethnic groups, with more research on African Americans and American Indians, and on Hispanics and Asians. Methodological concerns, such as problems of nonequivalence across groups, are identified in the conduct of research on ethnic and racial minorities. The synthesis concludes with an identification of intervention efforts along with an articulation of conceptual issues salient for promoting and theorizing about identity development processes among ethnic and racial minority children and adolescents. 相似文献
95.
The Association between Language and Symbolic Play at Two Years: Evidence from Deaf Toddlers 总被引:2,自引:0,他引:2
Patricia Elizabeth Spencer 《Child development》1996,67(3):867-876
The association between expressive language and symbolic play was investigated in 3 groups of 2-year-olds: deaf children with hearing parents (dH), deaf children with deaf parents (dD), and hearing children with hearing parents (hH). (Each group included 6 girls and 4 boys.) 3 language-level groups were defined. The highest group was well into the vocabulary "explosion" and frequently produced multiword/sign utterances; a middle group was beginning the period of vocabulary expansion and occasionally produced utterances of more than 1 word/sign; a third group produced single word/sign utterances only, and had a limited vocabulary. Hearing status was associated with duration of symbolic play (deaf > hearing). Higher language levels were associated with more canonically sequenced and preplanned play, even when language delays were due to exogenous factors. 相似文献
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Students with developmental disabilities are being increasingly included in college life. As this occurs, academic libraries will be providing more services to this population. This discussion of services to users with developmental disabilities attempts to help fill a gap in the literature and provide information that can be useful for libraries to build on as they develop services. Furthermore, by focusing on students with developmental disabilities, there are opportunities to improve services for all students. 相似文献
98.
Abstract The purpose of this study was to assess the power output of field-based downhill mountain biking. Seventeen trained male downhill cyclists (age 27.1 ± 5.1 years) competing nationally performed two timed runs of a measured downhill course. An SRM powermeter was used to simultaneously record power, cadence, and speed. Values were sampled at 1-s intervals. Heart rates were recorded at 5-s intervals using a Polar S710 heart rate monitor. Peak and mean power output were 834 ± 129 W and 75 ± 26 W respectively. Mean power accounted for only 9% of peak values. Paradoxically, mean heart rate was 168 ± 9 beats · min?1 (89% of age-predicted maximum heart rate). Mean cadence (27 ± 5 rev · min?1) was significantly related to speed (r = 0.51; P < 0.01). Analysis revealed an average of 38 pedal actions per run, with average pedalling periods of 5 s. Power and cadence were not significantly related to run time or any other variable. Our results support the intermittent nature of downhill mountain biking. The poor relationships between power and run time and between cadence and run time suggest they are not essential pre-requisites to downhill mountain biking performance and indicate the importance of riding dynamics to overall performance. 相似文献
99.
Bryan R. Warnick Heather S. Dawson D. Spencer Smith Bethany Vosburg-Bluem 《Educational Studies A Journal of the American Educational Studies Association》2013,49(2):168-191
Hollywood films partially construct how Americans think about education. Recent work on the representation of schools in American cinema has highlighted the role of class difference in shaping school film genres. It has also advanced the idea that a nuanced understanding of American individualism helps to explain why the different class genres are shaped as they are. This article attempts to refine this theoretical approach by focusing on the paradox of individualism, which suggests that individualism must always be dependent on community. We examine 5 films (Rushmore 1988, The Breakfast Club 1985, Mona Lisa Smile 2003, School of Rock 2003, and Stand and Deliver 1988) and argue that, although the values of individualism are certainly celebrated, these films also show, perhaps unwittingly, that the achievements of individualism require robust student communities. We describe how student communities function in these films, what achievements they make possible, and what obstacles they face. 相似文献
100.
To better understand factors underlying educational and career choices, this study used both survey data from an online networking tool and data collected in college classrooms to gauge differences between Asians (primarily Korean) and white students in the United States. More Asians (41%) than whites (9%) prioritized prestige over happiness, while more white students (67%) than Asian‐American students (28%) deemed happiness as paramount in selecting a college. When assessing their parents, more Asian Americans thought their mothers (51%) and fathers (34%) emphasized prestige in choosing a college than white mothers (9%) and fathers (17%). In addition, Asian parents were assessed as much more prone to stress the importance of financial independence in career selection while white parents were perceived as prioritizing career enjoyment. Certain parenting techniques were much more common among Asians, such as reminding children of parental sacrifices made for the next generation, teaching them that academic performance is a matter of family honor and prodding academic success by comparing their accomplishments with those of children of family and friends. These findings may reflect a conscious strategy to overcome racial discrimination if education is seen as the primary path to upward social mobility. Awareness of the social and emotional cost of the staunch emphasis on the duty to succeed is important for those involved in educating and providing career counseling for college students with an Asian family background. Acknowledgement of pressure to honor parental expectations of narrowly defined acceptable academic and career achievement should be a part of counseling sessions that might otherwise focus exclusively on individual aspirations without due recognition of an interdependent, collectivistic orientation where upholding family expectations is integral to perceived success. 相似文献