全文获取类型
收费全文 | 25568篇 |
免费 | 1068篇 |
国内免费 | 13篇 |
专业分类
26649篇 |
出版年
2020年 | 268篇 |
2019年 | 362篇 |
2018年 | 540篇 |
2017年 | 566篇 |
2016年 | 578篇 |
2015年 | 429篇 |
2014年 | 476篇 |
2013年 | 2176篇 |
2012年 | 876篇 |
2011年 | 891篇 |
2010年 | 518篇 |
2009年 | 512篇 |
2008年 | 725篇 |
2007年 | 764篇 |
2006年 | 633篇 |
2005年 | 585篇 |
2004年 | 568篇 |
2003年 | 550篇 |
2002年 | 563篇 |
2001年 | 789篇 |
2000年 | 761篇 |
1999年 | 578篇 |
1998年 | 263篇 |
1997年 | 228篇 |
1996年 | 255篇 |
1995年 | 226篇 |
1992年 | 461篇 |
1991年 | 451篇 |
1990年 | 436篇 |
1989年 | 412篇 |
1988年 | 426篇 |
1987年 | 389篇 |
1986年 | 393篇 |
1985年 | 396篇 |
1984年 | 318篇 |
1983年 | 287篇 |
1981年 | 217篇 |
1979年 | 362篇 |
1978年 | 258篇 |
1977年 | 218篇 |
1975年 | 280篇 |
1974年 | 360篇 |
1973年 | 370篇 |
1972年 | 290篇 |
1971年 | 288篇 |
1970年 | 285篇 |
1969年 | 255篇 |
1968年 | 351篇 |
1967年 | 311篇 |
1966年 | 286篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
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
43.
44.
45.
Although message‐production theories often assume that goals behave dynamically to direct communication behavior, few studies consider the interconnectedness of goals and behavior throughout interactions. Here, the interrelationship of communication goals and tactics was examined through a sequential analysis of 47 conflict interactions between close friends or dating partners. It was posited that for both the initiators and resistors in a conflict, the importance of relational or other‐identity goals would be associated with the use of integrative tactics and the importance of instrumental or self‐identity goals would be related to the use of distributive tactics. We examined these predictions within and across partners. Analyses indicated that for both conflict initiators and resistors, the importance of a combination self/instrumental goal predicted the use of distributive tactics and the importance of an other‐identity goal lead to partner‐oriented tactics. For resistors, the importance of an instrumental goal was associated with the use of distributive tactics and the importance of a combination identity/relational goal was aligned with issue‐oriented tactics as well. Across partners, several significant patterns between one partner’s use of distributive or integrative tactics and the other partner’s goals were observed. Implications of the results for understanding conflict and message production are discussed. 相似文献
46.
47.
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
48.
49.
50.
Social status variables have been shown to influence attributional judgments, but their effects have been demonstrated almost entirely in experimental settings. The influence of such statuses in experimental settings may differ from their influence in natural settings. We examined the influence on attributional judgments of the status characteristics of both subjects and actors in conjunction with variations in the degree of “real world” characteristics of both subjects and social context. These comparisons were drawn through a partial replication of earlier research investigating the effects of a social status variable, victim sex, and a situational variable—type of assault—on attributions about an assault victim. The social status characteristic, victim sex, had less influence on attributions in an adult juror sample than in a student sample and testimony-related characteristics were more influential in the adult juror sample than in the student sample. Thus, the categories of variables that influence attributions appear to depend on the context of judgment and on the breadth of subjects' life experience. These findings are discussed and we conclude with the caution that careful identification of the differences produced by context and subject characteristics is necessary to support generalization of laboratory-based research. 相似文献