全文获取类型
收费全文 | 66643篇 |
免费 | 2700篇 |
国内免费 | 20篇 |
出版年
2020年 | 614篇 |
2019年 | 786篇 |
2018年 | 1066篇 |
2017年 | 1098篇 |
2016年 | 1147篇 |
2015年 | 856篇 |
2014年 | 1020篇 |
2013年 | 4749篇 |
2012年 | 1946篇 |
2011年 | 1975篇 |
2010年 | 1207篇 |
2009年 | 1168篇 |
2008年 | 1745篇 |
2007年 | 1719篇 |
2006年 | 1561篇 |
2005年 | 1452篇 |
2004年 | 1381篇 |
2003年 | 1260篇 |
2002年 | 1292篇 |
2001年 | 2060篇 |
2000年 | 1922篇 |
1999年 | 1463篇 |
1998年 | 724篇 |
1996年 | 605篇 |
1992年 | 1309篇 |
1991年 | 1230篇 |
1990年 | 1211篇 |
1989年 | 1139篇 |
1988年 | 1143篇 |
1987年 | 1093篇 |
1986年 | 1131篇 |
1985年 | 1230篇 |
1984年 | 952篇 |
1983年 | 900篇 |
1982年 | 686篇 |
1981年 | 654篇 |
1979年 | 1112篇 |
1978年 | 751篇 |
1977年 | 681篇 |
1976年 | 716篇 |
1975年 | 934篇 |
1974年 | 1065篇 |
1973年 | 1129篇 |
1972年 | 953篇 |
1971年 | 876篇 |
1970年 | 878篇 |
1969年 | 894篇 |
1968年 | 1141篇 |
1967年 | 1013篇 |
1966年 | 934篇 |
排序方式: 共有10000条查询结果,搜索用时 156 毫秒
71.
72.
73.
Collin L. Davidson MS LaRicka R. Wingate PhD Kathy A. Rasmussen BA Meredith L. Slish BA 《Suicide & life-threatening behavior》2009,39(5):499-507
The current study hypothesized that (1) hope would negatively predict burdensomeness, thwarted belongingness, and acquired capability to enact lethal injury; (2) hope would negatively predict suicidal ideation; and (3) the interpersonal suicide risk factors would predict suicidal ideation. Results indicated that hope negatively predicted burdensomeness and thwarted belongingness, but positively predicted acquired capability to enact suicide. Contrary to our second hypothesis, hope did not predict suicidal ideation, but interpersonal risk factors for suicide predicted suicidal ideation. Results are discussed in terms of implications for hope theory and Joiner's (2005) interpersonal risk factors for suicide, and for clinical practice. 相似文献
74.
Following Altman's privacy regulation model, this research was based on the assumption that the relationship between achieved and desired levels of privacy is a major determinant of the experience of crowding in small groups. Further, on the basis of evidence that advancing age is associated with a chronic lack of communicative interaction, it was assumed that the achieved level of privacy among elderly persons generally is greater than that experienced by young adults. Given these assumptions, it was predicted that the crowding threshold of young adults would be significantly lower than that of older persons. To test this hypothesis, the research varied conversation distance (close, far) and density (small room, large room) and assessed the quality of communicative interaction and task performance among small groups of college-age females and retired women over 60 years of age. Results showed that task performance among younger subjects deteriorated in close interaction conditions, whereas the performance of older subjects was improved by spatial intrusion. Further, older subjects exhibited positive communication behaviors in response to close conversation, high-density conditions, while younger subjects responded either with negative communication behaviors or were unaffected by spatial restriction. Finally, the research confirmed previous findings that conversation distance is a more important determinant of the experience of crowding in small groups than physical density. The significance of the results for Altman's privacy regulation model and their implications for the study of human communication behaviors were discussed. 相似文献
75.
Stephen R. Munzer 《The Journal of religious ethics》2005,33(4):747-781
Self‐abandonment and self‐denial are, respectively, Catholic and hyper‐Calvinist analogues of each other. Roughly, each requires the surrendering of a person to God's will and providence through faith, hope, and love. Should the self‐abandoning/self‐denying individual accept his or her own damnation if that be God's will? This article, which is virtually alone in discussing the Catholic and Reformed Protestant traditions together, answers “No.” The unqualified self‐abandonment present in quietism and the radical self‐denial of Samuel Hopkins are perverse and irrational responses to the prospect of hell because they run counter to the Christian's deepest need to spend eternity with God. However, a qualified self‐abandonment is intellectually defensible and offers a viable Christian piety. 相似文献
76.
Tavis S Campbell Blaine Ditto Jean R Séguin Jean-Marc Assaad Robert O Pihl Daniel Nagin Richard E Tremblay 《Health psychology》2002,21(6):594-600
A growing literature has observed a significant reduction in pain sensitivity among hypertensive animals and humans. It is uncertain whether a reduced sensitivity to pain can be observed in nonnotensive individuals who go on to develop high blood pressure. Blood pressure (BP) was reassessed in one hundred fifteen 19-year-old boys initially tested at age 14, when they were also presented with a pain stimulus (mechanical finger pressure). Hierarchical regression analyses indicated that information regarding pain tolerance improved prediction of changes in systolic and diastolic blood pressure beyond that afforded by differences in BP at age 14, parental history of hypertension, and body mass index. These analyses suggest that pain sensitivity may be associated with physiological processes involved in the development of sustained high blood pressure. 相似文献
77.
Kathleen Forcier Laura R Stroud George D Papandonatos Brian Hitsman Meredith Reiches Jenelle Krishnamoorthy Raymond Niaura 《Health psychology》2006,25(6):723-739
A meta-analysis of published studies with adult human participants was conducted to evaluate whether physical fitness attenuates cardiovascular reactivity and improves recovery from acute psychological stressors. Thirty-three studies met selection criteria; 18 were included in recovery analyses. Effect sizes and moderator influences were calculated by using meta-analysis software. A fixed effects model was fit initially; however, between-studies heterogeneity could not be explained even after inclusion of moderators. Therefore, to account for residual heterogeneity, a random effects model was estimated. Under this model, fit individuals showed significantly attenuated heart rate and systolic blood pressure reactivity and a trend toward attenuated diastolic blood pressure reactivity. Fit individuals also showed faster heart rate recovery, but there were no significant differences in systolic blood pressure or diastolic blood pressure recovery. No significant moderators emerged. Results have important implications for elucidating mechanisms underlying effects of fitness on cardiovascular disease and suggest that fitness may be an important confound in studies of stress reactivity. 相似文献
78.
79.
T. J. Roper R. A. Boakes 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1981,33(2):137-140
TOATES, F. Animal Behaviour: A Systems Approach. Chichester: John Wiley and Sons. 1980. Pp. 299. Hardback £17. Paper back £6.40 ISBN 0 471 27724.
DICKINSON, A. Contemporary Animal Learning Theory. Cambridge: University Press. 1980. Pp. 177. Hardback £12.50. Paperback £3.95. ISBN 0 521 23469 7. 相似文献
DICKINSON, A. Contemporary Animal Learning Theory. Cambridge: University Press. 1980. Pp. 177. Hardback £12.50. Paperback £3.95. ISBN 0 521 23469 7. 相似文献
80.
RENNEKER R 《The Psychoanalytic quarterly》1952,21(4):528-536