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   266篇
  免费   5篇
教育   200篇
科学研究   17篇
各国文化   3篇
体育   16篇
文化理论   8篇
信息传播   27篇
  2023年   2篇
  2022年   3篇
  2021年   7篇
  2020年   6篇
  2019年   4篇
  2018年   15篇
  2017年   5篇
  2016年   10篇
  2015年   8篇
  2014年   4篇
  2013年   62篇
  2012年   8篇
  2011年   6篇
  2010年   3篇
  2009年   3篇
  2008年   7篇
  2007年   6篇
  2006年   8篇
  2005年   7篇
  2004年   4篇
  2003年   10篇
  2002年   2篇
  2001年   3篇
  2000年   6篇
  1999年   5篇
  1995年   2篇
  1991年   2篇
  1989年   1篇
  1988年   4篇
  1987年   4篇
  1985年   1篇
  1984年   1篇
  1983年   2篇
  1982年   1篇
  1981年   4篇
  1980年   8篇
  1979年   5篇
  1978年   3篇
  1977年   4篇
  1976年   4篇
  1975年   2篇
  1974年   4篇
  1973年   2篇
  1972年   1篇
  1971年   1篇
  1965年   1篇
  1915年   1篇
  1912年   2篇
  1902年   1篇
  1872年   1篇
排序方式: 共有271条查询结果,搜索用时 703 毫秒
181.
This study uses an uncertainty framework to uncover the patterns of relationships between uncertainty, jealousy, maintenance, and trust in two types of long‐distance relationships (LDRs; both those without face‐to‐face contact and those with some face‐to‐face contact) and geographically close relationships (GCRs). Data were collected from 311 individuals. Results supported the hypothesized relationships, with relational uncertainty positively related to cognitive and emotional jealousy, negatively related to five maintenance behaviors, and negatively related to trust. Counter to predictions, individuals in GCRs did not experience less relational uncertainty than individuals in LDRs with some face‐to‐face contact, but those in LDRs with some face‐to‐face contact were significantly more certain of their relationships than were those in LDRs without face‐to‐face contact. Finally, individuals in long‐distance relationships with no face‐to‐face interaction were significantly less likely to use the maintenance behaviors of assurances or sharing tasks, and expressed significantly less trust than individuals in long‐distance relationships with some face‐to‐face interaction.  相似文献   
182.
ABSTRACT

Two‐year public colleges are known to experience the lowest retention rates of all colleges and universities. In addition, the lowest rate of consecutive‐term retention within the two‐year college occurs from students’ first to second term. The literature on factors related to retention in two‐year colleges, however, is strikingly inconclusive. The purpose of this study was to determine demographic and academic factors associated with first‐to‐second‐term retention at a regional campus of a two‐year public technical institution. The interaction between these factors was also studied. Those demographic variables found to be significantly related to retention included educational objective, full‐time/part‐time enrollment status, employment status, and age. The only academic factor found to be related significantly to retention was first‐term GPA. No significant interaction effects between these variables were found. A list of target groups for retention strategies was developed from the results of the study.  相似文献   
183.
Abstract

Confusion still exists about the relationships between sociodemographics and adult physical activity behavior. In this paper, data from a national sample of 19,110 adults is examined to determine which of the sociodemographic variables are associated with physical activity behavior, their relative importance, and why these associations may exist. Once one controls for multicollinearity among the sociodemographic variables only age, education, and income maintain any substantive correlation. However, the amount of variance explained is small (R 2 adj = 8%). Two causal models are presented to account for the education: physical activity variance. The relationship is believed to be a spurious one in that there is some other third variable(s) which is speculated to affect both schooling and physical activity behavior. Exposure to sports and physical activity in the schools, though, may enhance the skills necessary for many activities providing an argument for a direct effect of education. Understanding this spurious/direct association is important for policy decision making and further research is warranted.  相似文献   
184.
Cardan/Euler and helical angles are the popular methods of quantifying angular kinematics. Cardan angles are sequence dependent and crosstalk can influence the kinematic calculations. The International Society of Biomechanics (ISB) recommends a sagittal, coronal, and then transverse (XYZ) sequence of rotations, although it has been proposed that when calculating rotations outside of the sagittal plane, this may not be the most appropriate method. This study investigated the influence of the helical and six available Cardan sequences on three-dimensional (3D) ankle joint kinematics. Kinematic data were obtained using an eight-camera motion analysis system as participants ran at 4.0 m/s ± 5%. Repeated measures ANOVAs were used to compare kinematic parameters, and intra-class correlations were employed to identify evidence of crosstalk across planes. The results indicate that in the transverse and coronal planes, peak angle and range of motion values using the YXZ and ZXY sequences were significantly greater than the other sequences. Furthermore, utilization of YXZ and ZXY sequences was associated with the strongest correlations from the sagittal plane, and the XYZ sequence was found to be associated with the lowest correlations. It appears that for the representation of 3D ankle joint kinematics, the XYZ sequence is associated with minimal planar crosstalk and as such its use is encouraged.  相似文献   
185.
186.
Audiovisual (AV) materials are widely used in the education of health professionals, and health science educators are usually the people who select audiovisual teaching materials. However, little is known about the selection process and there are few parameters that can be used for guidance. No previous research was uncovered that documented the selection/acquisition of materials by users. This paper reports a survey of health science educators and resource consultants at forty-five academic health centers in the United States, on their experiences in identifying, selecting, and using AV materials. The results provide a baseline of information on which future research can build.  相似文献   
187.
188.
189.
Conclusion In summary, despite apparent changes in the recent past, women remain underrepresented in nontraditional career areas. Society continues to exert forces which restrict women's motivation toward particular options. It is hoped that the Expectancy-Valence model presented here will help counselors in their efforts to broaden women's career and lifestyle opportunities.Earlier versions of this paper were presented at the annual meeting of the American Psychological Association, Los Angeles, August, 1985, and at the Career Theory Conference, University of Northern Iowa, May, 1986. Address requests for reprints to Linda Brooks, School of Education, CB# 3500, Peabody Hall, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3500.  相似文献   
190.
This article explores the ways in which the quantitative and qualitative tools used by risk managers can help students think critically about issues. In particular, it identifies some of the quantitative skills used for risk assessment that can be taught and used in mathematics and science classes. It also examines the qualitative knowledge of governance structures, primarily acquired in social studies classes, and how these can be applied in analyzing solutions to the complex issues of this century and our future. Examples are given of the application of these diverse skill sets to such controversial issues as the use of nuclear technology, disaster response, and preservation of the environment. An interdisciplinary approach to the teaching of controversial issues is encouraged.  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