全文获取类型
收费全文 | 6946篇 |
免费 | 459篇 |
国内免费 | 3篇 |
出版年
2023年 | 70篇 |
2022年 | 45篇 |
2021年 | 62篇 |
2020年 | 176篇 |
2019年 | 132篇 |
2018年 | 169篇 |
2017年 | 235篇 |
2016年 | 271篇 |
2015年 | 201篇 |
2014年 | 228篇 |
2013年 | 930篇 |
2012年 | 331篇 |
2011年 | 280篇 |
2010年 | 267篇 |
2009年 | 248篇 |
2008年 | 292篇 |
2007年 | 300篇 |
2006年 | 263篇 |
2005年 | 208篇 |
2004年 | 200篇 |
2003年 | 214篇 |
2002年 | 208篇 |
2001年 | 105篇 |
2000年 | 91篇 |
1999年 | 111篇 |
1998年 | 92篇 |
1997年 | 72篇 |
1996年 | 126篇 |
1995年 | 85篇 |
1994年 | 78篇 |
1993年 | 78篇 |
1992年 | 110篇 |
1991年 | 94篇 |
1990年 | 93篇 |
1989年 | 61篇 |
1988年 | 67篇 |
1987年 | 61篇 |
1986年 | 64篇 |
1985年 | 50篇 |
1984年 | 74篇 |
1983年 | 43篇 |
1982年 | 65篇 |
1981年 | 54篇 |
1980年 | 53篇 |
1979年 | 50篇 |
1978年 | 47篇 |
1977年 | 53篇 |
1976年 | 30篇 |
1974年 | 23篇 |
1973年 | 22篇 |
排序方式: 共有7408条查询结果,搜索用时 15 毫秒
11.
Population attributable risk (PAR) estimates have been used in suicide research to evaluate the impact of psychosocial and socioeconomic risk factors, including affective disorders, traumatic life events, and unemployment. A parallel concept of preventive fraction (PF), allowing for estimation of the impact of protective factors and effectiveness of preventive interventions, is practically unknown in suicidology. The study authors discuss the application of both concepts to suicide research and prevention, and review literature on the subject. Despite several methodological and conceptual limitations, both PAR and PF are valuable instruments to inform development and evaluation of suicide prevention programs. 相似文献
12.
Karen M. Peesker Lynette J. Ryals Gregory A. Rich Susan E. Boehnke 《Journal of Personal Selling & Sales Management》2019,39(4):319-333
AbstractThis study builds on and extends previous sales leadership research by exploring sales professionals’ perceptions of effective leadership behaviors. Semistructured interviews with both sales leaders and salespeople working in a global enterprise software company were examined through a qualitative analysis. Results indicated that participants believed sales leadership played an important role in influencing sales performance. When asked to describe specific sales leader behaviors that best enable salesperson performance, sales professionals – both sales leaders and salespeople – overwhelmingly referenced coaching, followed by collaborating, championing, and customer engaging. We define and describe these four key sales leader behaviors and identify four potential mediating variables (trust, confidence, optimism, and resilience), from which emerges a conceptual framework of sales leader behaviors perceived to enable salesperson performance. We examine these four key sales leader behaviors and mediators in the broader context of leadership theory, particularly transformational, servant, authentic, and adaptive leadership theories. The key contribution of this study is the identification of a set of leader behaviors that are likely to be especially effective in modern sales organizations given that they originated from the perceptions of sales professionals themselves. 相似文献
13.
14.
15.
16.
Susan D. Holloway Kathleen S. Gorman Bruce Fuller 《International journal of psychology》1988,23(1-6):303-317
The child-rearing beliefs of 32 mothers and 36 day-care providers in Mexico were compared. Day-care providers expected children to master developmental skills at an earlier age than did mothers. Day-care providers more strongly valued the development of independent and cooperative behavior, and placed less importance on obedience. They also reported employing more flexible and nonauthoritarian discipline strategies than did mothers. Mothers and caregivers did not differ in the extent to which they attributed the success of their discipline strategies to their own actions rather than to external factors. Also examined was how mothers' beliefs differed in families characterized by interdependent versus individualistic social structures. In interdependent families, mothers were more likely to believe in later mastery of developmental skills and to make external attributions. These findings suggest that Mexican children experience incongruous social norms as they move between home and day care settings, and that these norms, at least within the home, are associated with the social structural features of the setting. 相似文献
17.
18.
Hierarchical classes: Model and data analysis 总被引:1,自引:0,他引:1
A discrete, categorical model and a corresponding data-analysis method are presented for two-way two-mode (objects × attributes) data arrays with 0, 1 entries. The model contains the following two basic components: a set-theoretical formulation of the relations among objects and attributes; a Boolean decomposition of the matrix. The set-theoretical formulation defines a subset of the possible decompositions as consistent with it. A general method for graphically representing the set-theoretical decomposition is described. The data-analysis algorithm, dubbed HICLAS, aims at recovering the underlying structure in a data matrix by minimizing the discrepancies between the data and the recovered structure. HICLAS is evaluated with a simulation study and two empirical applications.This research was supported in part by a grant from the Belgian NSF (NFWO) to Paul De Boeck and in part by NSF Grant BNS-83-01027 to Seymour Rosenberg. We thank Iven Van Mechelen for clarifying several aspects of the Boolean algebraic formulation of the model and Phipps Arabie for his comments on an earlier draft. 相似文献
19.
Attribution questionnaires were completed by 137 students in an introductory economics course immediately preceding the first exam in their class and immediately after their exams were returned. Results indicate that males and females used attributions differently, although not as a function of perceived outcome. In contrast, sex-typing groups varied their attribution as a function of perceived outcome. Self-esteem is proposed as a possible mediating variable. It was concluded that sex typing in relation to perceived successful and unsuccessful performance is an important variable in attributional research. 相似文献
20.
This paper reports on an unusual study of survivors of rape and the effects on the victim, her significant male other person, and her parents. All survivors were victims of the same rapist and were interviewed from 21 months to ten years after the event. The study indicates that the long-term effects of rape may be more significant than previous researchers and practitioners thought was the case. Recommendations are given for more effective help for survivors and those close to them.This study was funded by the Ohio Department of Mental Health, Office of Program Evaluation and Research, Columbus, Ohio, 1985. 相似文献