首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   38706篇
  免费   1574篇
  国内免费   14篇
  2020年   357篇
  2019年   414篇
  2018年   570篇
  2017年   578篇
  2016年   643篇
  2015年   485篇
  2014年   552篇
  2013年   2593篇
  2012年   1087篇
  2011年   1054篇
  2010年   662篇
  2009年   630篇
  2008年   945篇
  2007年   936篇
  2006年   809篇
  2005年   783篇
  2004年   731篇
  2003年   668篇
  2002年   688篇
  2001年   1264篇
  2000年   1219篇
  1999年   885篇
  1998年   394篇
  1992年   861篇
  1991年   801篇
  1990年   822篇
  1989年   713篇
  1988年   717篇
  1987年   685篇
  1986年   714篇
  1985年   788篇
  1984年   589篇
  1983年   543篇
  1982年   369篇
  1981年   356篇
  1980年   342篇
  1979年   685篇
  1978年   424篇
  1977年   416篇
  1976年   412篇
  1975年   583篇
  1974年   668篇
  1973年   714篇
  1972年   617篇
  1971年   578篇
  1970年   567篇
  1969年   561篇
  1968年   750篇
  1967年   663篇
  1966年   592篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
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   
42.
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   
43.
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   
44.
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   
45.
46.
Book reviews     
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   
47.
48.
R. Vermeulen 《Synthese》1955,9(1):385-394
  相似文献   
49.
Although a great deal of research has been conducted on the relationship between social support and physical health, the contribution of personality characteristics to this relationship has rarely been assessed. Structural equation modeling was employed to derive and test a model of the direct and indirect relationships between personality characteristics, social network size, the perceived availability of support, socially supportive behaviors, and perceived physical health with a sample of Pennsylvania adults. Significant paths indicate that individuals who perceive themselves as affiliative and as help seekers and help givers report larger social networks, receive more socially supportive behaviors, and perceive that more support is available to them. The perception that support is available shared a direct relationship with perceived physical health. The utility of including multiple measures of social support and personality characteristics related to receiving support in investigations of the relationship between social support and physical health is discussed.  相似文献   
50.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号