全文获取类型
收费全文 | 9201篇 |
免费 | 114篇 |
国内免费 | 6篇 |
专业分类
教育 | 6121篇 |
科学研究 | 1082篇 |
各国文化 | 323篇 |
体育 | 749篇 |
综合类 | 4篇 |
文化理论 | 65篇 |
信息传播 | 977篇 |
出版年
2021年 | 88篇 |
2020年 | 128篇 |
2019年 | 184篇 |
2018年 | 235篇 |
2017年 | 246篇 |
2016年 | 222篇 |
2015年 | 147篇 |
2014年 | 187篇 |
2013年 | 1645篇 |
2012年 | 192篇 |
2011年 | 195篇 |
2010年 | 178篇 |
2009年 | 177篇 |
2008年 | 231篇 |
2007年 | 215篇 |
2006年 | 178篇 |
2005年 | 166篇 |
2004年 | 181篇 |
2003年 | 125篇 |
2002年 | 115篇 |
2001年 | 153篇 |
2000年 | 180篇 |
1999年 | 158篇 |
1998年 | 91篇 |
1997年 | 87篇 |
1996年 | 74篇 |
1995年 | 67篇 |
1994年 | 69篇 |
1993年 | 82篇 |
1992年 | 141篇 |
1991年 | 150篇 |
1990年 | 143篇 |
1989年 | 152篇 |
1988年 | 114篇 |
1987年 | 110篇 |
1986年 | 116篇 |
1985年 | 149篇 |
1984年 | 122篇 |
1983年 | 102篇 |
1982年 | 92篇 |
1981年 | 76篇 |
1980年 | 80篇 |
1979年 | 131篇 |
1978年 | 84篇 |
1977年 | 81篇 |
1976年 | 74篇 |
1974年 | 84篇 |
1973年 | 72篇 |
1971年 | 70篇 |
1968年 | 65篇 |
排序方式: 共有9321条查询结果,搜索用时 15 毫秒
991.
After reviewing a brief general history of applied child development research, this paper suggests that in the future we should study questions that society needs to answer as well as questions that might contribute to theory, and that our research methods need to be adjusted to match these types of questions. Further, academics are urged to broaden their audience from a nearly exclusive focus on other academics to a focus on the three ps--practitioners, policymakers, and the public--and to recognize that scholarship is packaged differently for these audiences. Finally, it is suggested that applied child development research should market as well as sell, partner with nonacademic groups, disseminate results more vigorously, and focus efforts on local as well as national issues. 相似文献
992.
993.
994.
995.
R&D Funding Sources and University Technology Transfer: What Is Stimulating Universities to Be More Entrepreneurial? 总被引:1,自引:0,他引:1
Joshua B. Powers 《Research in higher education》2004,45(1):1-23
In recent years, universities have become increasingly entrepreneurial as evidenced by their rapid escalation into technology transfer, the process by which university-developed technologies are commercialized. Stimulated in part by a favorable policy environment for patenting and licensing as well as increased competition for limited resources, university commercially oriented activities are nevertheless risky and controversial. Yet, it is unlikely this trend will be reversed, and hence research to inform its responsible practice is needed. This study investigates the effect of core R&D resources on university licensing to small and large companies, two important but distinct forms of licensing activity. Implications of the findings for policy and practice are offered. 相似文献
996.
The purpose of this investigation was to compare conflicts occurring between young children and their friends to those occurring between nonfriends. 53 children with a median age of 4 years, 3 months were observed and interviewed to determine who were mutual friends, unilateral associates, or neutral associates. 146 conflicts were also observed. Conflicts between mutual friends, as compared to those occurring between neutral associates: (a) did not occur less frequently, differ in length, or differ in the situations that instigated them, but (b) were less intense, were resolved more frequently with disengagement, and more frequently resulted in equal or partially equal outcomes. Continued socialization was also more likely following conflicts between friends. Conflicts between unilateral associates resembled those between nonfriends, although postconflict interaction resembled that between mutual friends. Conflict resolution strategies favored by friends maximize the likelihood that their interaction and their relationships will continue. 相似文献
997.
Relationships between measures of creativity and measures of intelligence were analysed to show that even when the intercorrelations among the former are not appreciably larger than correlations between creativity and intelligence measures, dimensions of creativity are found to be psychometrically and conceptually distinct from dimensions of intelligence. One hundred eighty-eight art and engineering college students were administered objective tests and questionnaires designed to tap a number of ability and nonability indicants of creativity and intelligence. Some of these measures were of a kind that some investigators would regard as “criterion” measures of creativity and intelligence. Data were analysed by means of correlational and factor analytic procedures. Eight major influences were indicated by independent factors rotated to approximate simple structure. The influences represented by these factors were identified as: fluid intelligence, crystallized intelligence, memory, fluency, rule-orientation versus intuitive thinking, and self-sufficient-calculated-risk-taking. The fourth, seventh, and eighth factors were discussed as representing distinct cognitive, motivational, and temperamental aspects of creativity. At the level of test intercorrelations discriminant validity did not obtain–measures of creativity did not intercorrelate more highly among themselves than they correlated with measures of intelligence. The putative factors of creativity did correlate more highly with creativity criteria, however, than did the factors identified as representing intelligence. Moreover, the intelligence factors were more highly related to intelligence criteria than to creativity criteria. Thus the evidence of this study suggests that it is useful to think of creativity and intelligence as the outgrowths of distinct (although overlapping) sets of influences, even when this is not well indicated by discriminant-convergent validation analyses carried out with respect to tests (in contrast to factors). 相似文献
998.
RALPH B. D'AGOSTINO 《Journal of Educational Measurement》1971,8(4):327-333
The work of Lunney (1970) concerning the appropriateness of analysis of variance (ANOVA) techniques on dichotomous data is discussed and extended. Relations between standard statistical techniques for analyzing dichotomous data and ANOVA procedures are indicated. The need for usefulness of analyzing transformed data as opposed to direct analysis of dichotomous data are discussed. Required statistical procedures employing transformed data are outlined. 相似文献
999.
Failure Modes and Effects Analysis (FMEA) is a proactive assessment tool originally created for quality assurance in manufacturing industries. FMEA involves the assignment of rankings for frequency, severity, and detection of errors within a process. Catalogers at ProQuest undertook an innovative project to use FMEA to evaluate MARC record production. This article provides an overview of FMEA for process evaluation and summarizes an application for cataloging. It considers the tool's value for error-proofing in MARC record creation and how FMEA might be applied more effectively in a variable environment. 相似文献
1000.