全文获取类型
收费全文 | 41561篇 |
免费 | 1633篇 |
国内免费 | 26篇 |
出版年
2020年 | 481篇 |
2019年 | 513篇 |
2018年 | 761篇 |
2017年 | 821篇 |
2016年 | 806篇 |
2015年 | 581篇 |
2014年 | 712篇 |
2013年 | 3351篇 |
2012年 | 1329篇 |
2011年 | 1443篇 |
2010年 | 861篇 |
2009年 | 821篇 |
2008年 | 1140篇 |
2007年 | 1134篇 |
2006年 | 1009篇 |
2005年 | 875篇 |
2004年 | 884篇 |
2003年 | 813篇 |
2002年 | 844篇 |
2001年 | 1393篇 |
2000年 | 1392篇 |
1999年 | 1016篇 |
1998年 | 475篇 |
1997年 | 413篇 |
1993年 | 367篇 |
1992年 | 807篇 |
1991年 | 726篇 |
1990年 | 775篇 |
1989年 | 733篇 |
1988年 | 715篇 |
1987年 | 677篇 |
1986年 | 710篇 |
1985年 | 723篇 |
1984年 | 582篇 |
1983年 | 523篇 |
1982年 | 385篇 |
1979年 | 578篇 |
1978年 | 450篇 |
1977年 | 391篇 |
1976年 | 370篇 |
1975年 | 541篇 |
1974年 | 625篇 |
1973年 | 559篇 |
1972年 | 526篇 |
1971年 | 442篇 |
1970年 | 412篇 |
1969年 | 512篇 |
1968年 | 549篇 |
1967年 | 476篇 |
1966年 | 499篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
231.
To test Coyne's (1976b) theory of depression, students' levels of depressive symptoms, reassurance seeking, and self-esteem were assessed at Time 1, and their same-gender roommates' appraisals of them were assessed 5 weeks later. Mildly depressed students engaged in the type of reassurance seeking described by Coyne. Among men, but not women, mildly depressed students were rejected if they strongly sought reassurance and had low self-esteem but not if they did not seek reassurance or had high self-esteem. Although induction of depressed symptoms in roommates did occur, this contagion effect did not account for the depression-rejection relationship. The prediction that unsupportive, intolerant, or unempathic others would be particularly likely to respond with rejection to reassurance-seeking depressed students with low self-esteem received partial support. Implications for future work on the interpersonal aspects of depression are discussed. 相似文献
232.
This research evaluated the relationship between pain and sleep problems, and the role of pain and sleep problems in depression, in a sample of 242 patients who had been diagnosed with definite or classical rheumatoid arthritis (RA). Patients completed the Pain scale of the Arthritis Impact Measurement Scales, the Center for Epidemiological Studies Depression Scale, and self-reports of sleep disturbance at two data waves over a 2-year interval. Cross-sectional multiple regression analysis revealed that the sleep problems variable was independently associated with depression at Time 1. Longitudinal multiple regression analyses demonstrated that prior pain predicted subsequent adverse changes in sleep problems, whereas sleep problems did not affect pain over time, and prior pain and the interaction of high pain and high sleep problems were independently associated with depression from Time 1 to Time 2. These data suggest that pain may exacerbate sleeping difficulty in RA patients, and that both factors may contribute to depression over time. 相似文献
233.
Z Solomon M Waysman G Levy B Fried M Mikulincer R Benbenishty V Florian A Bleich 《Family process》1992,31(3):289-302
While the long-term effects of combat trauma on veterans have been studied extensively, its impact on veterans' wives has yet to be investigated. This study examined the implications of combat-induced psychopathology--wartime combat stress reaction (CSR) and current posttraumatic stress disorder (PTSD)--in a sample of 205 wives of Israeli combat veterans of the 1982 Lebanon war. Results show that both CSR and PTSD were associated with increased psychiatric symptoms in the wives. In addition, current PTSD was particularly found to contribute to impaired social relations among veterans' wives in a broad range of contexts, from inner feelings of loneliness, through impaired marital and family relations, and extending to the wider social network. Implications of these findings for treatment and further research are discussed. 相似文献
234.
LYMAN C. WYNNE M.D. Ph.D. CLEVELAND G. SHIELDS Ph.D. MARK I. SIRKIN Ph.D. 《Family process》1992,31(1):3-18
This article examines and clarifies controversies about the concept of illness in the field of family therapy. We contend that illness, as traditionally understood in all cultures, is a relational, transactional concept that is highly congruent with core principles of present-day family theories. Family therapists need not buy into a biotechnical, reductionistic reframing of illness as disease. Rather, it is more appropriate to conceptualize and work with illness as a narrative placed in a biopsychosocial context. Such a narrative includes how shared responsibility for coping and for finding solutions can take place, without becoming involved in disputes about causal models. 相似文献
235.
236.
Exposed eye area (EEA) was measured in photographs of Indian adults who modeled six emotions--happiness, sadness, fear, anger, surprise, and disgust--as well as a neutral expression. The data were analyzed with a 2 x 6 (Eyes x Emotions) factorial analysis of covariance (ANCOVA). EEA for neutral expression was used as the covariate measure. The EEAs of the two eyes did not differ significantly during the expression of emotion. The EEAs for fear and surprise were significantly larger, and the EEA for disgust was significantly smaller than those for either other emotions or neutral expression. 相似文献
237.
This study examined the career aspirations of pregnant teens enrolled in a program designed to minimize their chances of dropping out of high school. The teens completed a demographic data form that included questions on their career aspirations. The data were coded by Holland type using the Dictionary of Holland Occupational Codes. Trends were discussed in light of the future labor market and critical need for career counseling for this at-risk population. 相似文献
238.
Employers of human resource professionals described their hiring practices. This information is especially useful for counselors and for developing curricula for nonbusiness majors interested in human resource careers. 相似文献
239.
A recent paper by Kail (1988) in this journal appears to contain a significant error in the data analysis. The "goodness-of-fit" coefficients reported which suggest that overall about 94% of the variance can be accounted for by the model seem to be a substantial overestimation as a result of inappropriate procedures for statistical modeling. Using the data made available to us by Kail, we have reanalyzed these results. The corrected values range from 0.9 to 92.1% for the individual tasks with an overall average between 40 and 60%. We suggest that the support for the original conclusions is considerably weaker than reported. 相似文献
240.