全文获取类型
收费全文 | 22228篇 |
免费 | 875篇 |
国内免费 | 12篇 |
专业分类
23115篇 |
出版年
2019年 | 262篇 |
2018年 | 386篇 |
2017年 | 410篇 |
2016年 | 425篇 |
2015年 | 325篇 |
2014年 | 363篇 |
2013年 | 1788篇 |
2012年 | 637篇 |
2011年 | 654篇 |
2010年 | 393篇 |
2009年 | 375篇 |
2008年 | 506篇 |
2007年 | 563篇 |
2006年 | 479篇 |
2005年 | 457篇 |
2004年 | 425篇 |
2003年 | 418篇 |
2002年 | 457篇 |
2001年 | 751篇 |
2000年 | 722篇 |
1999年 | 545篇 |
1998年 | 217篇 |
1997年 | 201篇 |
1996年 | 228篇 |
1992年 | 453篇 |
1991年 | 445篇 |
1990年 | 432篇 |
1989年 | 404篇 |
1988年 | 419篇 |
1987年 | 381篇 |
1986年 | 396篇 |
1985年 | 393篇 |
1984年 | 308篇 |
1983年 | 278篇 |
1982年 | 209篇 |
1981年 | 208篇 |
1979年 | 352篇 |
1978年 | 254篇 |
1977年 | 216篇 |
1976年 | 202篇 |
1975年 | 287篇 |
1974年 | 361篇 |
1973年 | 370篇 |
1972年 | 289篇 |
1971年 | 287篇 |
1970年 | 284篇 |
1969年 | 254篇 |
1968年 | 350篇 |
1967年 | 308篇 |
1966年 | 285篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
33.
34.
35.
36.
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
37.
38.
39.
40.
Comparison of response formats for Multidimensional Health Locus of Control Scales: six levels versus two levels 总被引:1,自引:0,他引:1
Two formats of the Multidimensional Health Locus of Control (MHLC) Scales were administered to 54 college students. Each subject completed the MHLC Scales in the standard 6-level response format (ranging from strongly disagree to strongly agree) and in a revised 2-level format (ranging from disagree to agree). Comparisons of internal consistency measures, principal components, and classification of subjects into groups indicate that the 2-level response format yields comparable data to those obtained with the 6-level format, particularly when classification of subjects is the goal. 相似文献