全文获取类型
收费全文 | 23089篇 |
免费 | 921篇 |
国内免费 | 11篇 |
专业分类
24021篇 |
出版年
2019年 | 270篇 |
2018年 | 403篇 |
2017年 | 423篇 |
2016年 | 437篇 |
2015年 | 342篇 |
2014年 | 359篇 |
2013年 | 1881篇 |
2012年 | 663篇 |
2011年 | 695篇 |
2010年 | 407篇 |
2009年 | 392篇 |
2008年 | 532篇 |
2007年 | 585篇 |
2006年 | 498篇 |
2005年 | 479篇 |
2004年 | 443篇 |
2003年 | 453篇 |
2002年 | 486篇 |
2001年 | 771篇 |
2000年 | 742篇 |
1999年 | 564篇 |
1998年 | 228篇 |
1996年 | 235篇 |
1995年 | 211篇 |
1992年 | 457篇 |
1991年 | 457篇 |
1990年 | 445篇 |
1989年 | 412篇 |
1988年 | 436篇 |
1987年 | 390篇 |
1986年 | 402篇 |
1985年 | 399篇 |
1984年 | 326篇 |
1983年 | 296篇 |
1982年 | 226篇 |
1981年 | 214篇 |
1979年 | 367篇 |
1978年 | 275篇 |
1977年 | 230篇 |
1976年 | 219篇 |
1975年 | 298篇 |
1974年 | 377篇 |
1973年 | 385篇 |
1972年 | 302篇 |
1971年 | 298篇 |
1970年 | 296篇 |
1969年 | 265篇 |
1968年 | 360篇 |
1967年 | 322篇 |
1966年 | 289篇 |
排序方式: 共有10000条查询结果,搜索用时 0 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