全文获取类型
收费全文 | 63300篇 |
免费 | 2512篇 |
国内免费 | 34篇 |
专业分类
65846篇 |
出版年
2019年 | 773篇 |
2018年 | 1110篇 |
2017年 | 1032篇 |
2016年 | 1206篇 |
2015年 | 817篇 |
2014年 | 1005篇 |
2013年 | 5598篇 |
2012年 | 1783篇 |
2011年 | 1810篇 |
2010年 | 1121篇 |
2009年 | 1157篇 |
2008年 | 1632篇 |
2007年 | 1565篇 |
2006年 | 1422篇 |
2005年 | 1221篇 |
2004年 | 1179篇 |
2003年 | 1154篇 |
2002年 | 1139篇 |
2001年 | 2021篇 |
2000年 | 1963篇 |
1999年 | 1472篇 |
1998年 | 658篇 |
1996年 | 714篇 |
1995年 | 722篇 |
1994年 | 679篇 |
1993年 | 669篇 |
1992年 | 1369篇 |
1991年 | 1268篇 |
1990年 | 1248篇 |
1989年 | 1140篇 |
1988年 | 1127篇 |
1987年 | 1069篇 |
1986年 | 1071篇 |
1985年 | 1113篇 |
1984年 | 962篇 |
1983年 | 831篇 |
1982年 | 660篇 |
1979年 | 958篇 |
1978年 | 704篇 |
1976年 | 657篇 |
1975年 | 832篇 |
1974年 | 891篇 |
1973年 | 967篇 |
1972年 | 890篇 |
1971年 | 787篇 |
1970年 | 697篇 |
1969年 | 700篇 |
1968年 | 870篇 |
1967年 | 770篇 |
1966年 | 742篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
Marcia Cavell Ph.D. 《Psychoanalytic Dialogues》2013,23(3):513-529
45.
This study examines the relationship of life stress, daily hassles, and perceived self-efficacy to adjustment in a community sample of 32 men and 32 women between ages 65 and 75. In a structured interview, negative life change events, daily hassles, self-efficacy, depression, psychosomatic symptoms, and negative well being were assessed. Both negative life events and daily hassles were related to psychological distress and physical symptoms for men, and hassles were associated with psychological distress and physical symptoms for women. An inverse relationship between self-efficacy and maladjustment was also found. Hassles showed the most powerful relationship to distress. 相似文献
46.
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
47.
48.
49.
50.