全文获取类型
收费全文 | 1741篇 |
免费 | 36篇 |
专业分类
教育 | 1432篇 |
科学研究 | 30篇 |
各国文化 | 41篇 |
体育 | 61篇 |
综合类 | 1篇 |
文化理论 | 6篇 |
信息传播 | 206篇 |
出版年
2022年 | 7篇 |
2021年 | 18篇 |
2020年 | 22篇 |
2019年 | 51篇 |
2018年 | 64篇 |
2017年 | 74篇 |
2016年 | 53篇 |
2015年 | 36篇 |
2014年 | 53篇 |
2013年 | 447篇 |
2012年 | 43篇 |
2011年 | 39篇 |
2010年 | 51篇 |
2009年 | 44篇 |
2008年 | 48篇 |
2007年 | 38篇 |
2006年 | 27篇 |
2005年 | 42篇 |
2004年 | 45篇 |
2003年 | 32篇 |
2002年 | 29篇 |
2001年 | 26篇 |
2000年 | 23篇 |
1999年 | 25篇 |
1998年 | 13篇 |
1997年 | 27篇 |
1996年 | 21篇 |
1995年 | 24篇 |
1994年 | 20篇 |
1993年 | 25篇 |
1992年 | 12篇 |
1991年 | 24篇 |
1990年 | 19篇 |
1989年 | 13篇 |
1988年 | 10篇 |
1987年 | 7篇 |
1986年 | 13篇 |
1985年 | 12篇 |
1984年 | 23篇 |
1983年 | 15篇 |
1982年 | 17篇 |
1981年 | 15篇 |
1980年 | 17篇 |
1979年 | 11篇 |
1978年 | 10篇 |
1977年 | 13篇 |
1976年 | 14篇 |
1975年 | 11篇 |
1974年 | 14篇 |
1973年 | 8篇 |
排序方式: 共有1777条查询结果,搜索用时 31 毫秒
21.
22.
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
23.
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
24.
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
25.
James W. Westerman Luis A. Perez‐Batres Betty S. Coffey Richard W. Pouder 《Decision Sciences Journal of Innovative Education》2011,9(1):49-67
We revisit the relationship between attendance and performance in the undergraduate university setting and apply agency theory in the instructor–student context. Building on agency theory propositions in the educational setting advanced by Smith, Zsidisin, and Adams (2005) , we propose that the student and instructor must align goals to promote the student's achievement of performance learning outcomes, and attendance functions as a behavior‐based alignment mechanism to encourage the convergence of faculty and student interests. Further, we propose that attendance does not equally affect lower‐ and higher‐performing students and that absences are also negatively related to students' cumulative grade point average. We test these hypotheses with data from undergraduates enrolled in management courses at a state university in the southeast. Our results show that attendance is positively related to exam performance, there are more pronounced negative effects of an absence for lower‐performing students than for higher performers, and absences are negatively related to a student's cumulative grade point average. We discuss the implications of our findings for students, instructors, and universities as well as practice in teaching and learning. 相似文献
26.
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
27.
28.
The science achievement of 226 5th graders from districts that have a kit-based inquiry science curriculum supported by intensive
professional development (PD) is compared with data from a group of 173 5th graders from other districts that use nonkit science
materials and do not have systematic science PD for teachers. Within the kit-based project, the sample of project teachers
is stratified to select teachers with a high number of science PD hours versus those with few hours. While there were no significant
differences in the mean total scores for kit-based students with low PD versus high PD teachers, the kit-based classrooms
scored significantly higher than students in nonkit classrooms on both the pretest and posttest, though there were significantly
more minutes of science instruction in the nonkit classrooms. Finally, nonkit teachers taught more units of shorter length
and reported lower levels of preparedness to use reform pedagogical approaches. 相似文献
29.
Sarah Hopkins Graham Ogle Corresponding author Lisette Kaleveld John Maurice Betty Keria William Louden 《Asia-Pacific Journal of Teacher Education》2005,33(1):77-96
Reading literacy and reading interest was examined in four primary schools in Papua New Guinea: in an international, suburban, settlement and village school. In this paper we present a summary of findings located within a local context and examine the implications as viewed through two lenses. From an ‘educational for equality’ perspective, the findings suggest a critical need to re‐evaluate the use of national testing to select children for further education and address the serious shortage of reading books in school libraries. From an ‘education for life’ perspective, the findings indicate a continuing need for community‐based actions together with innovative teacher education programs aimed at developing ways of strengthening the connections between home and school. 相似文献
30.
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