全文获取类型
收费全文 | 42821篇 |
免费 | 469篇 |
国内免费 | 22篇 |
专业分类
教育 | 31366篇 |
科学研究 | 3658篇 |
各国文化 | 355篇 |
体育 | 2891篇 |
综合类 | 16篇 |
文化理论 | 676篇 |
信息传播 | 4350篇 |
出版年
2022年 | 226篇 |
2021年 | 338篇 |
2020年 | 529篇 |
2019年 | 823篇 |
2018年 | 3156篇 |
2017年 | 3088篇 |
2016年 | 2528篇 |
2015年 | 775篇 |
2014年 | 1014篇 |
2013年 | 6408篇 |
2012年 | 1088篇 |
2011年 | 1581篇 |
2010年 | 1502篇 |
2009年 | 1086篇 |
2008年 | 1420篇 |
2007年 | 1806篇 |
2006年 | 698篇 |
2005年 | 968篇 |
2004年 | 965篇 |
2003年 | 893篇 |
2002年 | 640篇 |
2001年 | 613篇 |
2000年 | 540篇 |
1999年 | 472篇 |
1998年 | 309篇 |
1997年 | 337篇 |
1996年 | 361篇 |
1995年 | 351篇 |
1994年 | 293篇 |
1993年 | 301篇 |
1992年 | 443篇 |
1991年 | 423篇 |
1990年 | 409篇 |
1989年 | 406篇 |
1988年 | 347篇 |
1987年 | 391篇 |
1986年 | 338篇 |
1985年 | 377篇 |
1984年 | 309篇 |
1983年 | 290篇 |
1982年 | 265篇 |
1981年 | 242篇 |
1980年 | 235篇 |
1979年 | 336篇 |
1978年 | 243篇 |
1977年 | 225篇 |
1976年 | 211篇 |
1975年 | 190篇 |
1974年 | 193篇 |
1971年 | 173篇 |
排序方式: 共有10000条查询结果,搜索用时 12 毫秒
21.
Determining the Value of Cultural Goods: How Much (or How Little) Does Contingent Valuation Tell Us? 总被引:1,自引:0,他引:1
David Throsby 《Journal of Cultural Economics》2003,27(3-4):275-285
Contingent valuation methods (CVM) are now well established as a means of measuring the nonmarket demand for cultural goods and services. When combined with valuations provided through market processes (where relevant), an overall assessment of the economic value of cultural commodities can be obtained. Within a neoclassical framework, such assessments are thought to provide a complete picture of the value of cultural goods. But are there aspects of the value of cultural goods which are not fully captured, or not captured at all, within such a model? This paper argues that CVM provides an incomplete view of the nonmarket value of cultural goods, and that alternative measures need to be developed to provide a fuller account. 相似文献
22.
This study investigates professional autonomy as experienced by psychotherapists in Korea and in the United States using data collected as part of a collaborative international study of the development of psychotherapists (Orlinsky et al. (1999). Psychotherapy Research, 9(2), 127–153; Orlinsky & Rønnestad, (2005). How psychotherapists develop: A study of therapeutic work and professional growth. Washington, DC: American Psychological Association). The major aims are: to compare the extent of professional autonomy experienced by psychotherapists in Korea and by their counterparts in the USA; and to explore the professional and social correlates of the professional autonomy experienced by Korean therapists and compare these with the correlates of autonomy experienced by American therapists. These aims are pursued through analyses of a database of questionnaire responses. Results indicate that Korean therapists, compared to American therapists in our sample experience significantly lower levels of professional autonomy. For Korean therapists, whether they have a salient theoretical orientation in their practice is the single most important influence in their experience of work autonomy. Seniority and work setting are also significant correlates of autonomy for the Korean therapists. Similar to Korean therapists, seniority and having a salient orientation are also important influences on the way American therapists experience professional autonomy. American therapists, who work in independent practice experience higher work autonomy, whereas American social workers tend to experience lower professional autonomy. 相似文献
23.
24.
25.
The purpose of this investigation was to describe the morphological parameters that characterize elite age group divers. Comparisons are made to normative age group data from the Coquitlam Growth Study and the constancy of important characteristics from age group to age group is examined. Data were collected on 27 male and 28 female elite divers who participated in the 1990 North American Age Group Diving Championships. Body build, body composition and skinfold corrected diameters were determined from 36 anthropometric parameters and analysed by ANOVA, t-test and Phantom z-scores procedures. All age groups except the 14- to 15-year-old males were significantly (P < or = 0.05) shorter than their norms but recorded higher androgyny index values. The estimated relative muscle mass increased significantly (P < or = 0.05) with age for males at all ages (40.8-46.3%). The 16- to 18-year-old females had a significantly (P < or = 0.05) larger relative muscle component compared to the younger age groups (40.1-38.4%). When normalized for height, active tissue development of the extremities was comparable between the sexes except in the forearm. The results indicate that at all age levels short stature is an important characteristic for divers. Analysis of regional active tissue development provides further insight into sport-specific prerequisites for success at elite levels. 相似文献
26.
This article is a preliminary analysis of the first few years of the Computer Matching and Privacy Protection Act of 1988 (CMPPA). The act requires Federal agencies to establish Data Integrity Boards (DIBs) with responsibility to approve written agreements for computer matches in which their agencies are involved. Information for this analysis was collected from the annual reports on computer matching submitted by agencies to the Office of Management and Budget (OMB) for 1990 and 1991 and from 108 matching agreements. The secretaries of several DIBs were also interviewed. The effectiveness of DIBs and matching agreements are analyzed using McCubbins and Schwartz's distinction between “police-patrol” and “fire- alarm” oversight. The article concludes that more active and direct oversight, which would occur through an independent data protection or privacy board, is necessary. 相似文献
27.
28.
29.
Jenny Morris, freelance researcher, David Abbott, research associate at the Norah Fry Research Centre at the University of Bristol, and Linda Ward, Director of the Norah Fry Research Centre at the University of Bristol, carried out research to look at whether the current system of legislation and regulation is adequately protecting and promoting the interests of disabled children placed at residential schools. This article summarises some findings from the research which investigated the decision-making processes leading to residential special school placements and explored the involvement of education and social services authorities after placements have been made. The research found that the needs of individual children are not central to these decision-making processes; and that the local authorities who make such placements do not pay sufficient attention to protecting and promoting children's educational or care needs once they have gone away to school. Jenny Morris, David Abbott and Linda Ward indicate some of the ways in which current practice could be improved; make recommendations for future developments; and call for further research into the role of special residential schools in the context of policy on educational and social inclusion. 相似文献
30.
Mechtild Gomolla 《Zeitschrift für Erziehungswissenschaft》2007,10(1):126-127
Ohne Zusammenfassung 相似文献