全文获取类型
收费全文 | 16842篇 |
免费 | 746篇 |
国内免费 | 7篇 |
专业分类
17595篇 |
出版年
2020年 | 193篇 |
2019年 | 212篇 |
2018年 | 297篇 |
2017年 | 273篇 |
2016年 | 317篇 |
2015年 | 234篇 |
2014年 | 295篇 |
2013年 | 1256篇 |
2012年 | 529篇 |
2011年 | 513篇 |
2010年 | 354篇 |
2009年 | 314篇 |
2008年 | 466篇 |
2007年 | 479篇 |
2006年 | 431篇 |
2005年 | 408篇 |
2004年 | 353篇 |
2003年 | 319篇 |
2002年 | 345篇 |
2001年 | 690篇 |
2000年 | 685篇 |
1999年 | 474篇 |
1998年 | 195篇 |
1997年 | 178篇 |
1996年 | 188篇 |
1995年 | 155篇 |
1994年 | 153篇 |
1992年 | 384篇 |
1991年 | 365篇 |
1990年 | 370篇 |
1989年 | 313篇 |
1988年 | 299篇 |
1987年 | 292篇 |
1986年 | 270篇 |
1985年 | 273篇 |
1984年 | 257篇 |
1983年 | 218篇 |
1982年 | 171篇 |
1979年 | 229篇 |
1978年 | 188篇 |
1977年 | 157篇 |
1975年 | 198篇 |
1974年 | 237篇 |
1973年 | 242篇 |
1972年 | 186篇 |
1971年 | 183篇 |
1969年 | 178篇 |
1968年 | 211篇 |
1967年 | 192篇 |
1966年 | 156篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
23.
N B Anderson R B Williams J D Lane T Haney S Simpson S J Houseworth 《Health psychology》1986,5(4):393-406
The purpose of this study was to determine the effects of Type A behavior and family history of hypertension on cardiovascular reactivity to mental stress in a group of employed black women. Measures of heart rate and of systolic blood pressure (SBP) and diastolic blood pressure (DBP) were taken at rest, during a mental arithmetic task, and during the Type A Structured Interview (SI). Results indicated that the Type A behavior pattern was associated with SBP and DBP hyperresponsivity during the SI but not during mental arithmetic. Additionally, certain speech components of the Type A pattern, as well as features of the potential-for-hostility component, were also related to cardiovascular responses during the SI. Family history of hypertension did not influence the cardiovascular parameters either alone or in combination with Type A behavior. The results suggest that many of the cardiovascular response characteristics of the Type A pattern that have been observed in predominantly white samples also hold true for blacks. Replication of these findings with other subgroups of blacks, such as young females and middle-aged males, will help document the generality of these findings within the black population. 相似文献
24.
25.
26.
27.
28.
This research examined the psychological underpinnings of concern for national symbols and ritualistic‐ceremonial activities or “symbolic involvement.” We propose and test a distinction between symbolic and “instrumental” involvement or concern for the functionality of national institutions and their capability to provide instrumental benefits to citizens. Items comprising the two constructs were found to be empirically distinct, evidenced by statistically reliable and orthogonal dimensions in exploratory factor analysis. Moreover, evidence based on divergent patterns of relations with various forms of national membership indicates that symbolic and instrumental involvement are rooted in distinct motivational concerns related to identity expression and object appraisal, respectively. These findings suggest that national symbolism evokes a psychological attachment to the nation as an abstracted social entity, but not as a concrete functional system. 相似文献
29.
As part of a large survey of addictive behavior in high school students, 43% of a sample of 278 (26% of the males, 57% of the females) scored above the cutoff point set by Overeaters Anonymous on their scale for assessing compulsive overeating. While this at-risk group did not report poorer general adjustment, health, or school achievement than did the students not at risk, they did significantly more often perceive their life quality and relationship with the person closest to them as less positive. The at-risk subsample indicated the defensive effectiveness of overeating in their significantly more frequent report of dissociative experiences while eating, and less severe ratings of insecurity, worrying, and daydreaming. One of the most salient findings was the at-risk students' more frequent report of addictive problems in their parents (overeating, alcohol and drug use, and gambling). 相似文献
30.
Randy O. Frost Joan E. Morgenthau Catherine K. Riessman Margaret Whalen 《Behaviour research and therapy》1988,26(6):481-487
The study examined physical symptoms and health service utilization of subjects high or low on a measure of the tendency to experience stress somatically and high or low on a measure of current stress. High somatic responders reported greater numbers of symptoms than low somatic responders regardless of stress level. However, high somatic responders who were experiencing high levels of current stress reported significantly more symptoms than high somatic responders who were experiencing low levels of stress. These findings indicate that somatic response to stress reflects both a general tendency to focus on physical symptoms, and a specific tendency to focus more on physical symptoms when under stress. Analysis of health service records indicated that high somatic responders had more visits prompted by symptoms than low somatic responders, but did not differ in frequency of health service visits designed to maintain health. The findings further clarify the relationship between somatic response to stress, physical symptoms and health service use. 相似文献