全文获取类型
收费全文 | 2256篇 |
免费 | 52篇 |
国内免费 | 1篇 |
专业分类
教育 | 1798篇 |
科学研究 | 57篇 |
各国文化 | 42篇 |
体育 | 84篇 |
综合类 | 2篇 |
文化理论 | 9篇 |
信息传播 | 317篇 |
出版年
2023年 | 8篇 |
2022年 | 10篇 |
2021年 | 23篇 |
2020年 | 34篇 |
2019年 | 69篇 |
2018年 | 86篇 |
2017年 | 104篇 |
2016年 | 90篇 |
2015年 | 51篇 |
2014年 | 70篇 |
2013年 | 574篇 |
2012年 | 53篇 |
2011年 | 55篇 |
2010年 | 59篇 |
2009年 | 65篇 |
2008年 | 61篇 |
2007年 | 53篇 |
2006年 | 38篇 |
2005年 | 55篇 |
2004年 | 58篇 |
2003年 | 45篇 |
2002年 | 39篇 |
2001年 | 39篇 |
2000年 | 30篇 |
1999年 | 32篇 |
1998年 | 27篇 |
1997年 | 29篇 |
1996年 | 32篇 |
1995年 | 38篇 |
1994年 | 37篇 |
1993年 | 38篇 |
1992年 | 23篇 |
1991年 | 27篇 |
1990年 | 20篇 |
1989年 | 15篇 |
1988年 | 9篇 |
1987年 | 11篇 |
1986年 | 10篇 |
1985年 | 13篇 |
1984年 | 20篇 |
1983年 | 15篇 |
1982年 | 20篇 |
1981年 | 13篇 |
1980年 | 14篇 |
1979年 | 15篇 |
1977年 | 11篇 |
1976年 | 13篇 |
1975年 | 7篇 |
1974年 | 11篇 |
1970年 | 5篇 |
排序方式: 共有2309条查询结果,搜索用时 15 毫秒
31.
Robert W. Bell 《PRIMUS》2017,27(3):406-417
AbstractMentoring undergraduate students in research is both rewarding and challenging. In this paper we present how we established a summer Research Experience for Undergraduates (REU) program in the mathematical sciences at Michigan State University. A goal of our REU is to include students who are at an early stage of their study of mathematics. We share our experiences in recruiting students, designing research projects, and mentoring our participants. We discuss the challenges we faced and the solutions we found while working with a diverse group of undergraduate students from across the nation. 相似文献
32.
What makes marking reliable? Experiments with UK examinations 总被引:2,自引:0,他引:2
33.
Two large independent sources of data, NSF's University Science Statistics Program Integrated Data Base and CHI Research's bibliometric data base, are brought together in a comprehensive study of the relationships among research resources, as measured by R&D expenditures, and research output, as measured by the quantity and visibility of scientific journal articles. The study is based on approximately 500 U.S. colleges and universities. For each of 11 fields of science, there is strong indication of a linear relationship between R&D expenditures and number of papers. The evidence also indicates a positive relationship between number of cites received per paper and number of papers published, but only for papers published in the basic research journals of the fields of chemistry, physics, and biology. 相似文献
34.
This study investigated the effects of a brief meditation intervention on perceived stress, mindfulness, and sleep quality for college freshmen who have aged out of foster care. Thirty-six youth who had aged out of foster care and enrolled at a large midwestern 4-year university (n?=?16 experimental group, n?=?20 control group) participated in a study in which they were assessed three times on the dependent variables. Students also participated in a focus group after the intervention ended. Four sessions of the brief mindfulness intervention resulted in significant short-term reductions in stress levels and increases in sleep quality. Finding effective personal interventions to increase chances for college success for students with histories in foster care can also offer potential insight toward the development of educational models and resources for other vulnerable college student populations. 相似文献
35.
Young Imm Kang Song Jo Ann Gammel 《The International Journal of Art & Design Education》2011,30(2):266-278
Murals are particularly visually captivating forms of public art due to their size and accessibility. Mural images also capture public attention and provoke viewers to explore layers of meaning and find hidden stories. They are often in places that people come to visit, study, play, congregate and discuss matters that may relate to the content of the mural. To this end, murals can be effective tools for helping communities think about their environmental issues. This article discusses the Mystic River mural project in Somerville, Massachusetts, USA. It addresses how the local art councils, mural artists, local students, community members and non‐profit organisations collaborated to carry out this ongoing mural project. The purpose of this research is to examine how Mystic River eco‐murals were created, what challenges and benefits the eco‐murals provided, how local social concerns were represented through the eco‐murals, how eco‐murals can continue to promote environmental awareness and inspire youth about their community and the local environment, and how the mural can continue to reflect or affect the meaning of the place. This process can serve as an example for other communities that seek to address their environmental concerns through public art. 相似文献
36.
Barry Biddlecomb Martha Carr 《International Journal of Science and Mathematics Education》2011,9(1):1-24
The purpose of this study was to determine whether patterns of strategy use in second, third and fourth grade children’s arithmetic
supported Steffe’s model of numerical development. In addition to student-generated strategies, we looked at commonly taught
algorithms not considered in Steffe’s model to determine whether these algorithms reflected underlying schemes. 206 children
were assessed on their strategy use while solving arithmetic problems in the second grade, the third grade and again in the
fourth grade. Factor analyses indicated some support for Steffe’s model, but there were exceptions. Not all children progressed
in their number knowledge and strategies as a function of schooling and schooling appeared to affect the types of strategies
children use independent of underlying schemes. 相似文献
37.
Meera Menon Rebecca C. Fauth M. Ann Easterbrooks 《Parenting, science and practice》2020,20(3):200-228
SYNOPSIS
Objective . Most parents manage some degree of parenting stress without serious concerns, but young mothers experience parenting stress at higher levels than adult mothers; high parenting stress is problematic due to its association with children’s socioemotional and behavior problems and the increased likelihood of maltreatment. Understanding the circumstances that precipitate or mitigate parents’ stress can have lasting impacts for child well-being. Extant research fails to account for both longitudinal and individual variation in young mothers’ parenting stress, leading to equivocal findings about the nature of mothers’ parenting stress trajectories across early childhood. Design . The present study used growth mixture modeling (GMM) to model the trajectories of 544 first-time young mothers’ parenting stress from children’s infancy to school-age. We considered how protective factors (i.e., social support) and psychological vulnerabilities (i.e., depression) experienced during the transition to parenthood were associated with parenting stress trajectories and variation within trajectories when children were of school-age. Results . GMM identified three trajectories of parenting stress: “low stable”, “high increasing”, and “high decreasing.” Protective factors were related to low and decreasing patterns of parenting stress, whereas psychological vulnerabilities were associated with higher parenting stress patterns. Conclusions . This study has implications for programs and services that help young mothers cope with the demands of parenting and reduce parenting stress. 相似文献
38.
Infant crying and maternal responsiveness 总被引:7,自引:1,他引:7
39.
A universal lack of attention to the professional learning needs of teacher educators is the driver for this study, which considers the most effective ways to support the professional learning of higher education-based teacher educators. At a time when many industrialised countries are engaged in systemic educational reform, this study provides an international and comparative needs analysis through a survey of 1158 higher education-based teacher educators in the countries participating in the International Forum for Teacher Educator Development: Belgium, Ireland, Israel, the Netherlands, Norway and the UK. Our results suggest that while teacher educators are only moderately satisfied with their professional development experiences, a strong desire exists for further professional learning. This desire, influenced by their professional context, relates to their current beliefs concerning ‘best practice’ in teacher education, the academic skills required to further their professional careers and knowledge of the curriculum associated with their fields of expertise. 相似文献
40.