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   155篇
  免费   3篇
教育   98篇
科学研究   24篇
各国文化   3篇
体育   19篇
信息传播   14篇
  2023年   2篇
  2021年   4篇
  2020年   3篇
  2019年   5篇
  2018年   11篇
  2017年   5篇
  2016年   5篇
  2015年   5篇
  2014年   2篇
  2013年   43篇
  2012年   3篇
  2011年   4篇
  2010年   2篇
  2009年   2篇
  2008年   3篇
  2005年   3篇
  2002年   1篇
  2001年   3篇
  2000年   3篇
  1998年   1篇
  1996年   1篇
  1995年   1篇
  1994年   1篇
  1993年   2篇
  1992年   2篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1984年   3篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1980年   1篇
  1978年   1篇
  1971年   1篇
  1969年   1篇
  1968年   1篇
  1966年   1篇
  1965年   1篇
  1963年   1篇
  1925年   1篇
  1900年   1篇
  1890年   2篇
  1887年   1篇
  1885年   3篇
  1882年   2篇
  1880年   3篇
  1877年   4篇
  1872年   2篇
  1830年   1篇
排序方式: 共有158条查询结果,搜索用时 46 毫秒
51.
Sexual orientation is often invisible in counseling research despite increasing LGBQ+ identity in the United States. We used consensual qualitative research to explore considerations from LGBQ+ counseling researchers for collecting sexual orientation. Three domains emerged: risks, benefits, and methodological considerations. Our findings highlight inclusive research practice strategies for LGBQ+ research participants.  相似文献   
52.
Although innovation diffusion is a central topic in policy and strategy, its measurement remains difficult – particularly in cases where the innovation is a complex and possibly ambiguous practice. In this paper, we develop four theoretical mechanisms that may bias diffusion markers by leading to the understatement and/or overstatement of diffusion at different points in time. Employing the case of “green chemistry,” we then compare three different diffusion markers – keywords, database index terms, and domain expert assessments – and we demonstrate how they lead to differing conclusions about the magnitude and timing of diffusion, organizational demography, publication outlets, and collaboration. We also provide suggestive evidence of extensive “greenwashing” by particular organization types and in particular countries. Building on these findings, we point to potential challenges with existing diffusion studies, and we make a case for the incorporation of practitioners in construct measurement and for the integration of comparative metrics in diffusion studies.  相似文献   
53.
The purpose of this study was to examine the role of sport as a social status determinant among racially diverse children. Participants were 1,233 fourth- to seventh-grade children. Results indicated there were gender, grade, and racial differences for the selection of social status determinants. Boys placed more importance than girls on being good at sports and wealth. Girls placed more importance than boys on getting good grades and being attractive. Fourth- and fifth-grade students ranked getting good grades as most important, while sixth- and seventh-grade students ranked being attractive as most important. Non-Hispanic Caucasian students ranked being good at sports and being attractive as most important, while African American students ranked getting good grades and wealth as most important  相似文献   
54.
The purpose of this study was to determine whether theoretically relevant sources of coaching efficacy could predict the measures derived from the Coaching Efficacy Scale II-High School Teams (CES II-HST). Data were collected from head coaches of high school teams in the United States (N=799). The analytic framework was a multiple-group confirmatory factor analysis with ordered-categorical indicators and observed covariates. Applying this framework to the conceptual model of coaching efficacy (CMCE) resulted in a statistical model equivalent to a multiple-group multivariate regression with latent outcomes. Results provided evidence for the ability of measures derived from the CES II-HST to be predicted by theoretically relevant sources of coaching efficacy and suggested modifications to the CMCE.  相似文献   
55.
56.
57.
Air Toxics Under the Big Sky is an environmental science outreach/education program that incorporates the Next Generation Science Standards (NGSS) 8 Practices with the goal of promoting knowledge and understanding of authentic scientific research in high school classrooms through air quality research. This research explored: (1) how the program affects student understanding of scientific inquiry and research and (2) how the open-inquiry learning opportunities provided by the program increase student interest in science as a career path. Treatment students received instruction related to air pollution (airborne particulate matter), associated health concerns, and training on how to operate air quality testing equipment. They then participated in a yearlong scientific research project in which they developed and tested hypotheses through research of their own design regarding the sources and concentrations of air pollution in their homes and communities. Results from an external evaluation revealed that treatment students developed a deeper understanding of scientific research than did comparison students, as measured by their ability to generate good hypotheses and research designs, and equally expressed an increased interest in pursuing a career in science. These results emphasize the value of and need for authentic science learning opportunities in the modern science classroom.  相似文献   
58.
Let f(χ) together with its first two derivatives be continuous in the domain D and additionally let χM?D be an extremum (or turning point) of this function. Also, let χn+1 = T (χnn-1n-2) be Jarratt's Method for computing the extremum (or turning point) of a function. Criteria are demonstrated which insure that, for any triple of initial assumptions (χ10-1)?D, Jarratt's Method, converges to the extremum of f(χ), and that from and after some n = N0, the rate of convergence of this method increases steadily, finally becoming unbounded when the solution χM is attained.  相似文献   
59.
贾燕梅 《海外英语》2007,(10):42-43
像传说中大兽般的不真实 德里街上那只喜马拉雅大熊 在炫目的阳光下舞动着 它那弯曲的上肢 大熊旁两个男人在吟唱 宛如那跳跃着的细长虫蝗 一个拽着那穿在硕大 而湿软鼻洞上的铁环另一个 扬起那扬起那重重的枝条 吓得老熊双眼不停忽闪  相似文献   
60.
This yearlong quasi experimental study examined the effects of two approaches to guided reading on second-grade students' reading abilities. The 79 subjects were chosen as a nonprobability sample and served as the treatment and comparison groups. The groups were pre- and post tested using the Developmental Reading Assessment, Second Edition determine students' reading levels. A 2 × 2 repeated measures analysis of variance revealed significant main and interaction effects. According to a post hoc analysis of mean difference effect size, both groups experienced very large effects, but treatment effects (d = 3.66) were much larger than the comparison (d = 1.34). The results suggest that increased emphasis on guided reading can lead to a greater impact on second-grade students' reading ability.  相似文献   
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