全文获取类型
收费全文 | 73141篇 |
免费 | 1551篇 |
国内免费 | 7篇 |
专业分类
74699篇 |
出版年
2020年 | 710篇 |
2019年 | 920篇 |
2018年 | 1210篇 |
2017年 | 1222篇 |
2016年 | 1314篇 |
2015年 | 980篇 |
2014年 | 1158篇 |
2013年 | 5277篇 |
2012年 | 2138篇 |
2011年 | 2270篇 |
2010年 | 1464篇 |
2009年 | 1411篇 |
2008年 | 2010篇 |
2007年 | 2064篇 |
2006年 | 1850篇 |
2005年 | 1676篇 |
2004年 | 1533篇 |
2003年 | 1412篇 |
2002年 | 1543篇 |
2001年 | 2390篇 |
2000年 | 2365篇 |
1999年 | 1786篇 |
1998年 | 835篇 |
1997年 | 737篇 |
1996年 | 748篇 |
1993年 | 657篇 |
1992年 | 1485篇 |
1991年 | 1375篇 |
1990年 | 1372篇 |
1989年 | 1251篇 |
1988年 | 1219篇 |
1987年 | 1155篇 |
1986年 | 1226篇 |
1985年 | 1240篇 |
1984年 | 1053篇 |
1983年 | 953篇 |
1982年 | 680篇 |
1981年 | 662篇 |
1979年 | 1101篇 |
1978年 | 803篇 |
1975年 | 911篇 |
1974年 | 995篇 |
1973年 | 1076篇 |
1972年 | 894篇 |
1971年 | 857篇 |
1970年 | 754篇 |
1969年 | 802篇 |
1968年 | 1007篇 |
1967年 | 920篇 |
1966年 | 776篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
Lemkau JP 《Psychology of women quarterly》1988,12(4):461-472
For women in therapy who have had abortions, an exploration of the context and aftermath of each abortion has been suggested. This inquiry should include: characteristics of the woman herself before and at the time of the abortion, the nature of the interpersonal and cultural milieu at the time, characteristics of the medical environment and procedure, and any events subsequent to the abortion that may evoke regrets about the earlier decision.
Whether or not such an inquiry results in the identification of unresolved issues surrounding the abortion, it is likely to enhance one's general understanding of the client. Exploring a woman's decision to have an abortion can bring into relief developmental and family issues, relationship conflicts, and her aspirations for education, work, and family. A woman's approach to establishing and asserting her priorities and values in making difficult personal decisions becomes clear as does her ability to tolerate and resolve the ambivalence inherent in making difficult decisions.
In psychotherapy, it is important to understand and address those aspects of experience that women have difficulty resolving. Hence, the emphasis on categories of experience that may have a negative impact on a woman's emotional well-being after abortion. Nevertheless, the clinician should remember that even women who report negative post-abortion sequelae overwhelmingly report that they feel that the decision was the right one for them. Having ambivalent feelings to resolve does not necessarily mean that one has made a wrong choice, only that one has made an emotionally significant choice with far-reaching personal implications, in a sociocultural environment that reinforces the ambivalence inherent in such decisions. 相似文献
Whether or not such an inquiry results in the identification of unresolved issues surrounding the abortion, it is likely to enhance one's general understanding of the client. Exploring a woman's decision to have an abortion can bring into relief developmental and family issues, relationship conflicts, and her aspirations for education, work, and family. A woman's approach to establishing and asserting her priorities and values in making difficult personal decisions becomes clear as does her ability to tolerate and resolve the ambivalence inherent in making difficult decisions.
In psychotherapy, it is important to understand and address those aspects of experience that women have difficulty resolving. Hence, the emphasis on categories of experience that may have a negative impact on a woman's emotional well-being after abortion. Nevertheless, the clinician should remember that even women who report negative post-abortion sequelae overwhelmingly report that they feel that the decision was the right one for them. Having ambivalent feelings to resolve does not necessarily mean that one has made a wrong choice, only that one has made an emotionally significant choice with far-reaching personal implications, in a sociocultural environment that reinforces the ambivalence inherent in such decisions. 相似文献
62.
When branches of a fault tree are pruned, subjects do not fully transfer the probability of those branches to the ‘all other’ category. This underestimation of the catch-all probability has been interpreted as an ‘out of sight, out of mind’ form of the availability bias. The present work replicates this underestimation bias with professional managers. It then demonstrates the effectiveness of a corrective tactic, extending the tree by generating additional causes, and also reveals that more easily retrieved short-term causes dominate the generation process. These results do not differ across managers' culture, education or experience. After evaluating such alternative explanations as category redefinition, we conclude that availability is a major cause, though possibly not the sole cause, of the underestimation bias. 相似文献
63.
J P Ricker J Hirsch 《Journal of comparative psychology (Washington, D.C. : 1983)》1988,102(3):203-214
Among Drosophila melanogaster, divergently selected for geotaxis intermittently over 600 generations (28 years), about 80,000 animals have been analyzed behavior-genetically. Each major chromosome pair from two lines was isogenized on an unselected isogenic background. Measurement of their behavioral effects revealed the relative magnitudes II greater than III greater than X for the negatively geotactic (high) line and X greater than III greater than II for the positively geotactic (low) line. When reversing selection for the now phenotypically stable high and low lines and then repeatedly relaxing the reversals, a new genetic homeostasis in the low line was indicated by the return of the reversed-line average scores towards the low extreme; that is, the low line has attained a stable equilibrium for positive geotaxis, an uncharacteristic behavior and an effect not seen before 1979. This change suggests the recent evolution of a new coadaptation among genes. Although not as conclusive, a similar genetic interpretation is suggested for the high line. 相似文献
64.
Previous research on the effect of lecture handouts on student learning indicates that students who are given skeletal handouts usually perform better in course examinations than students who take all their own notes. The present study investigates whether the amount of detail in the handout is a critical factor in this. A randomized groups experiment was conducted in the context of a course on dental surgery. Four lecture handout conditions (headings and full text; headings and key points; headings only; no supplementary materials) were compared on tests 2 days and 2 weeks after the lecture. The significant differences between conditions were: ‘headings only’ better than ‘headings and key points’ on the first test; ‘headings only’ better than ‘no supplementary materials’ on the second test; and ‘headings and full text’ better than ‘no supplementary materials’ on the second test. These results indicate that the amount of detail is a critical factor in handout effectiveness. 相似文献
65.
JOSEPH A. JOHNSTON KEITH L. BUESCHER MARY J. HEPPNER 《Journal of counseling and development : JCD》1988,67(1):39-41
Computerized career information and guidance systems, although now commonplace, have received little psychometric scrutiny. The authors argue for examining these systems in the same way in which paper and pencil instruments are assessed. Consideration is also given to issues related to programming, technical-service problems, and staffing. 相似文献
66.
67.
68.
69.
70.
Different patterns of cognitive slowing produced by Alzheimer's disease and normal aging 总被引:2,自引:0,他引:2
Aging has previously been shown to produce a generalized proportional slowing of all cognitive operations. In contrast, the present results suggested that Alzheimer's disease produces a disproportionate reduction in the speed with which patients carry out one or more mental operations. The tasks that demented patients found particularly difficult involved either a self-directed search of their lexicon or the use of familiarity information. 相似文献