全文获取类型
收费全文 | 10116篇 |
免费 | 130篇 |
国内免费 | 6篇 |
专业分类
教育 | 6788篇 |
科学研究 | 1150篇 |
各国文化 | 340篇 |
体育 | 775篇 |
综合类 | 4篇 |
文化理论 | 69篇 |
信息传播 | 1126篇 |
出版年
2021年 | 95篇 |
2020年 | 146篇 |
2019年 | 208篇 |
2018年 | 265篇 |
2017年 | 274篇 |
2016年 | 255篇 |
2015年 | 168篇 |
2014年 | 220篇 |
2013年 | 1829篇 |
2012年 | 215篇 |
2011年 | 216篇 |
2010年 | 193篇 |
2009年 | 191篇 |
2008年 | 256篇 |
2007年 | 239篇 |
2006年 | 192篇 |
2005年 | 194篇 |
2004年 | 190篇 |
2003年 | 135篇 |
2002年 | 131篇 |
2001年 | 168篇 |
2000年 | 196篇 |
1999年 | 163篇 |
1998年 | 90篇 |
1997年 | 91篇 |
1996年 | 83篇 |
1994年 | 73篇 |
1993年 | 87篇 |
1992年 | 141篇 |
1991年 | 153篇 |
1990年 | 158篇 |
1989年 | 159篇 |
1988年 | 125篇 |
1987年 | 119篇 |
1986年 | 121篇 |
1985年 | 162篇 |
1984年 | 129篇 |
1983年 | 123篇 |
1982年 | 106篇 |
1981年 | 81篇 |
1980年 | 91篇 |
1979年 | 145篇 |
1978年 | 91篇 |
1977年 | 95篇 |
1976年 | 80篇 |
1975年 | 80篇 |
1974年 | 91篇 |
1973年 | 82篇 |
1971年 | 77篇 |
1968年 | 76篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
Kushalnagar P Topolski TD Schick B Edwards TC Skalicky AM Patrick DL 《Journal of deaf studies and deaf education》2011,16(4):512-523
Given the important role of parent-youth communication in adolescent well-being and quality of life, we sought to examine the relationship between specific communication variables and youth perceived quality of life in general and as a deaf or hard-of-hearing (DHH) individual. A convenience sample of 230 youth (mean age = 14.1, standard deviation = 2.2; 24% used sign only, 40% speech only, and 36% sign + speech) was surveyed on communication-related issues, generic and DHH-specific quality of life, and depression symptoms. Higher youth perception of their ability to understand parents' communication was significantly correlated with perceived quality of life as well as lower reported depressive symptoms and lower perceived stigma. Youth who use speech as their single mode of communication were more likely to report greater stigma associated with being DHH than youth who used both speech and sign. These findings demonstrate the importance of youths' perceptions of communication with their parents on generic and DHH-specific youth quality of life. 相似文献
152.
Collaborative research for sustainable learning: the case of developing innovation capabilities at Volvo Cars 总被引:1,自引:1,他引:0
Sofia Börjesson 《Action Learning: Research and Practice》2011,8(3):187-209
This paper aims to make a contribution to the stream of literature on action research by describing a longitudinal collaborative research project which evolved out of a long-term, participation partnership with Volvo Cars. The collaboration was aimed at developing innovation capabilities in the company and accumulating knowledge on how capabilities are developed. The paper provides insights into the design of collaborative research projects to enable mutual, sustainable learning. It draws on key notions in the literature on collaborative management research and action learning, highlighting the research design of the project at Volvo Cars and its relations to action learning. The paper describes how the research design opened the way to establishing a learning system at Volvo Cars while simultaneously generating new scientific knowledge within the area of innovation capabilities. The paper provides rich and detailed data on a collaborative research setting and highlights key aspects related to organizing and undertaking collaborative research. 相似文献
153.
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
154.
155.
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
156.
Design of an interactive informational program: Formative evaluation and experimental research 总被引:1,自引:0,他引:1
The design and evaluation of an interactive informational program is outlined in this article. Also reported is an integrated
research study which examines the effects of differing levels of orientation to an interactive informational program on user
confidence and attitudes.
Research results indicate that a full orientation providing information, examples, practice, and feedback for various program
options can lead to greater levels of user comfort than a more limited type of orientation providing brief information and
single examples, and with equally positive user attitudes. However, subjects receiving the full orientation spent less time
in the actual program and accessed a smaller proportion of available program segments than did their limited-orientation counterparts.
No differences in efficiency were noted between the two groups in the use of the program. Sex differences noted in attitudes
and time expended are discussed, with reference to a possible preference by females for greater levels of program support.
Recommendations are offered for interactive program developers and future research directions are suggested.
This work was supported in part by Summer Research Awards provided by the Curry School of Education at the University of Virginia.
I gratefully acknowledge the assistance of Richard Berdel, Cheryl Wissick, and Maureen Glasser in the data collection, and
of theETR&D editor and anonymous reviewers for their comments on a draft of this article. 相似文献
157.
A technique is presented for partitioning N students into K groups of fixed sizes using a given measure of proximity for all student pairs. The measure of proximity is typically calculated from a set of variables, such as completed curriculum units or learning style, and constitutes the data needed for a criterion of partition fit. This latter index is explicitly defined by the sum of within-group proximities and when used in conjunction with the optimization procedure discussed, homogeneous groups can be obtained that satisfy externally imposed size requirements. Finally, a simple generalization is suggested for the related task of grouping students to meet upper limit size constraints only. 相似文献
158.
If freezing underlies barpress conditioned suppression, then it seems odd that auditory cues paired with shock evoke more freezing than do visual cues, yet evoke similar suppression. Bevins and Ayres (1992) found that auditory and visual cues also evoked similar withdrawal from the bar and dipper areas and suggested that such withdrawal could explain the similar suppression. Seeking to understand that withdrawal, we found evidence in the present study that it was due either to adventitious punishment or to place-aversion learning. The cue for shock seemed to set the occasion for such learning. For example, we found that, as training progressed, rats’ tendency to leave the bar area during the cue first increased, then decreased, then increased again, reflecting, presumably, shock occurrence first inside, then outside, then inside the bar area again. Despite these changes in the rats’ location, barpress suppression remained stable, implying that leaving the bar area, though sufficient for barpress suppression, is unnecessary. 相似文献
159.
Higher education in the United States and elsewhere is beset by crises: crises of public confidence, questions of continuing relevance, doubts about continuing the emphasis on doctoral instruction, and a very real financial crisis. In response, governing boards and governmental agencies are devoting increasing attention to the management of higher education. Part of this response has been a heightened interest in formal planning-programming-budgeting-systems (PPBS); in fact, several states have legislated the adoption of PPBS for higher educational planning and decision making. Similar interest has been evidenced in other countries. Therefore, it is an appropriate time to reconsider the nature and role of PPBS and its potential impact on higher education. This paper describes the salient characteristics of PPBS and traces the development of PPBS and related analytical techniques in governmental agencies and institutions of higher education. A second paper will illustrate both the concepts and the implementation of PPBS by a detailed exposition of the University of California's experience with PPBS. Finally, in a third paper we suggest an alternative view of policy analysis for educational planning which is a departure from traditional PPBS. We conclude with general observations and specific recommendations to educational managers seeking to improve their resource allocation procedures. 相似文献