首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   10篇
  免费   0篇
教育   5篇
科学研究   3篇
各国文化   1篇
体育   1篇
  2014年   1篇
  2013年   1篇
  2005年   1篇
  2002年   3篇
  2001年   1篇
  2000年   1篇
  1969年   1篇
  1966年   1篇
排序方式: 共有10条查询结果,搜索用时 291 毫秒
1
1.
2.
3.
Poly A RNA status and itsin vitro translation in a rabbit reticulolysate cell free system, were assessed in the skeletal muscle of young boys with Duchenne muscular dystrophy. Compared to normals there is a significant 48% increase in poly A RNA content of dystrophic muscle and its translatability was increased by 56% based on35S methionine incorporation into total protein systhesised. Immunoprecipitation of the translated products with monospecific antibodies showed that there is a 2.6 fold and a 2 fold increase in m and μ calpains respectively. This underlines the importance of both synthetic and degenerative activities in the early pathology in DMD muscle.  相似文献   
4.
Formidable barriers hinder use of standard data collection methods among deaf youth. Culturally and linguistically sensitive data collection strategies are needed to identify the unmet health and programming needs of this population. Unfortunately, researchers often fail to describe the issues involved in developing such targeted methods. The authors describe development of a culturally appropriate data collection instrument for a study of tobacco-related knowledge, attitudes, and practices among deaf youth. The instrument uses interactive multimedia technology to administer a questionnaire translated into the primary languages used by the Deaf. The procedures taken to accommodate this technology to these languages and to Deaf culture are described. This process yielded useful insights with respect to data collection not only among the Deaf, but among other frequently overlooked and underserved populations as well.  相似文献   
5.
Abstract

It was the purpose of this investigation to conduct a program in perceptual-motor development and to determine changes in, and assess relationships between, changes in perceptual-motor development on visual perception and reading readiness of first-grade children. Four classes were equated on the variables age, height, sex, and weight. Two of the classes (experimental) were exposed to the perceptual-motor program for 12 weeks and the other two classes (control) took part in the conventional physical education program. All students participated in their regular classroom activities. All subjects were evaluated in perceptual-motor development, visual perception, and reading readiness prior to and immediately following the research program. The difference scores (pre- and post-test) were evaluated by two-way ANOVA to determine if there were any significant differences between groups. F ratios for the three variables tested were all significant beyond the .01 level in support of the perceptual-motor program.  相似文献   
6.
7.
8.
This paper argues that those seekingequity-focused educational reform have much tolearn from social movements and grassrootspolitical organizing. We explore how theknowledge, skills, strategies, and passionatenarratives emanating from suchnon-institutional change efforts can shed light onthe difficulty of equity-focused educationreform and provide equity reformers with anexpanded repertoire of change strategies. Wepursue our analysis using an ``exemplary' caseof reform at Wilson High School. The case datawere collected as part of a four-year study documenting the college preparation experienceof students of color in diverse, comprehensivehigh schools. We conclude that the logic andstrategies employed in social and politicalmovements – in contrast to those found inorganizational change models – are more likelyto expose, challenge, and if successful,disrupt the prevailing norms and politics ofschooling inequality that frustrateequity-focused reforms. Without attention tothese dynamics, such reforms are abandonedentirely or implemented in ways that actuallyreplicate (perhaps in a different guise) thestratified status quo. We also conclude thatthose of us whose research focuses on equityreforms would be well advised to use social andpolitical movements as lenses to more clearlyview the course of these much advocated, butseldom achieved efforts.  相似文献   
9.
Five-year-old children categorized as skilled versus unskilled counters were given verbal estimation and number word comprehension tasks with numerosities 20-120. Skilled counters showed a linear relation between number words and nonsymbolic numerosities. Unskilled counters showed the same linear relation for smaller numbers to which they could count, but not for larger number words. Further tasks indicated that unskilled counters failed even to correctly order large number words differing by a 2 : 1 ratio, whereas they performed well on this task with smaller numbers, and performed well on a nonsymbolic ordering task with the same numerosities. These findings provide evidence that large, approximate numerosity representations become linked to number words around the time that children learn to count to those words reliably.  相似文献   
10.
The efficacy of two intragenic polymorphic markers of factor VIII gene has been examined in Andhra Pradesh population with a view to confirm/revise the strategy for carrier detection that would be precise and economical. The haemophilia A carrier was detected using Bcl I and Xba I polymorphic sites in intron 18 and 22 respectively. The cumulative efficiency of these two sites for detection of carriers is 100% since all 15 families tested were informative for one of these polymorphisms, thus confirming their usefulness for factor VIII gene mutations found in Andhra Pradesh.  相似文献   
1
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号