全文获取类型
收费全文 | 51474篇 |
免费 | 2037篇 |
国内免费 | 33篇 |
专业分类
53544篇 |
出版年
2020年 | 529篇 |
2019年 | 612篇 |
2018年 | 907篇 |
2017年 | 918篇 |
2016年 | 984篇 |
2015年 | 656篇 |
2014年 | 825篇 |
2013年 | 3958篇 |
2012年 | 1554篇 |
2011年 | 1597篇 |
2010年 | 966篇 |
2009年 | 1018篇 |
2008年 | 1343篇 |
2007年 | 1375篇 |
2006年 | 1206篇 |
2005年 | 1083篇 |
2004年 | 1052篇 |
2003年 | 969篇 |
2002年 | 1034篇 |
2001年 | 1660篇 |
2000年 | 1670篇 |
1999年 | 1256篇 |
1998年 | 565篇 |
1997年 | 492篇 |
1993年 | 481篇 |
1992年 | 1013篇 |
1991年 | 931篇 |
1990年 | 960篇 |
1989年 | 901篇 |
1988年 | 874篇 |
1987年 | 842篇 |
1986年 | 849篇 |
1985年 | 918篇 |
1984年 | 748篇 |
1983年 | 670篇 |
1982年 | 531篇 |
1979年 | 812篇 |
1978年 | 583篇 |
1977年 | 540篇 |
1976年 | 523篇 |
1975年 | 675篇 |
1974年 | 762篇 |
1973年 | 770篇 |
1972年 | 688篇 |
1971年 | 601篇 |
1970年 | 541篇 |
1969年 | 631篇 |
1968年 | 742篇 |
1967年 | 663篇 |
1966年 | 646篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
951.
G D Walters 《Journal of personality assessment》1984,48(4):390-391
A sample of 38 schizophrenic inpatients was found to achieve significantly higher mean scores on Scale 8 of the MMPI relative to 38 schizophrenia-spectrum and 38 control patients regardless of whether K- or non-K-corrected scores were used. However, when patients were individually classified by means of a cutting score (greater than or equal to 70), only K-corrected scores accurately discriminated between schizophrenic and control patients at a statistically significant level. 相似文献
952.
JOAN RITTENHOUSE WALTER G. STEPHAN ELAINE LeVINE 《Journal of counseling and development : JCD》1984,62(7):391-397
Students playing the role of peer counselors blamed failing students for their poor performances by attributing them to internal, controllable factors. 相似文献
953.
Alf C. Zimmer 《Psychological research》1984,46(4):411-416
Summary It is argued that the structure of the Munsell solid is not sufficient to explain the evolution of color terms as Zollinger (1984) has argued. A manifold model of color perception is described with a local metric structure of discriminability and a global categorical structure. This model elucidates the interdependency of the different levels of constraints on color naming and permits the integration of experimental results which cannot be explained in the model underlying Zollinger's (1984) color-metric argument for the emergence of turquoise. 相似文献
954.
955.
956.
William C. Rein 《Behavioral sciences & the law》1984,2(2):179-193
In September 1981, a symposium of distinguished mental health practitioners from various clinical, administrative, research, and legal disciplines was conducted on the topic of “Behavioral Science and the Secret Service,” under the sponsorship of the National Academy of Sciences, Institute of Medicine. The article combines a study of the symposium's written conference summary, the author's experience as legal counsel to a state security hospital, and research into federal cases that have interpreted the so-called “Presidential Threat Statute” (18 USC 871) in order to discuss the role of the Secret Service in protecting elected federal officials from physical harm. The potential for increasing practical cooperation between the Service and state mental health systems is also discussed. 相似文献
957.
Robert G. Franke 《Zygon》1984,19(1):29-41
Abstract. Loren Eiseley is known both as a scientist and an essayist/poet. The disillusionment with science and technology among many in the late 1950s and the search for new values in the 1960s help account for Eiseley's significance as a writer. He appears to offer a solution to mankind's contemporary disillusionment by reminding that science has limits and that intuitive, nonscientific insight is valid, especially when it is complementary to scientific knowledge. The thesis of this essay is that in content and style Eiseley writes as a religious writer in the sense that he reaffirms what is necessary for humankind to be happy and even to be "saved." 相似文献
958.
959.
This paper discusses an exploratory investigation concerned with the long range questions: How does group psychotherapy help patients? and How can psychiatry residency programs best train residents to treat patients in therapeutic groups? Group psychotherapy has come to be accepted in its own right as a decisive contribution to the study of and relief of emotional disorders. As a component of comprehensive psychiatric services it is indispensable. However, while its clinical value has been demonstrated, its scientific validity has not. A Group Process Inventory has been developed by the author and has been utilized for the past two years by psychiatric residents in recording the process of their therapeutic groups in a teaching hospital mental hygiene clinic. The preliminary use of this recording as a clinical-teaching instrument has proven effective. This inventory is being revised to serve as a research instrument. 相似文献
960.
Suicide and rurality in urban society 总被引:3,自引:0,他引:3
Recent findings suggest that suicide increases with rurality, but research on rural suicide leaves many questions unanswered. This study specifies problems of community organization as a reason for expecting a positive effect of rurality on the suicide rate. A multiple regression analysis of county data shows that rurality has a substantial positive effect and is, in fact, the best predictor of the suicide rate among several variables selected from the previous literature. Additional research is needed to test the interpretation that rurality contributes to an incomplete, fragmented form of community organization which influences the suicide rate by disrupting primary relationships. 相似文献