首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   550篇
  免费   14篇
管理学   47篇
民族学   3篇
人口学   67篇
理论方法论   83篇
综合类   2篇
社会学   326篇
统计学   36篇
  2023年   5篇
  2022年   3篇
  2021年   5篇
  2020年   12篇
  2019年   11篇
  2018年   32篇
  2017年   29篇
  2016年   22篇
  2015年   18篇
  2014年   29篇
  2013年   100篇
  2012年   27篇
  2011年   26篇
  2010年   20篇
  2009年   11篇
  2008年   20篇
  2007年   18篇
  2006年   21篇
  2005年   11篇
  2004年   13篇
  2003年   15篇
  2002年   11篇
  2001年   15篇
  2000年   12篇
  1999年   3篇
  1998年   5篇
  1997年   9篇
  1996年   4篇
  1995年   6篇
  1994年   5篇
  1993年   4篇
  1992年   9篇
  1991年   3篇
  1990年   5篇
  1987年   2篇
  1986年   1篇
  1984年   1篇
  1983年   3篇
  1982年   1篇
  1981年   1篇
  1980年   4篇
  1979年   1篇
  1978年   3篇
  1977年   1篇
  1976年   1篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1972年   1篇
  1970年   1篇
排序方式: 共有564条查询结果,搜索用时 0 毫秒
31.
Manufacturers often face a choice of whether to recover the value in their end‐of‐life products through remanufacturing. In many cases, firms choose not to remanufacture, as they are (rightly) concerned that the remanufactured product will cannibalize sales of the higher‐margin new product. However, such a strategy may backfire for manufacturers operating in industries where their end‐of‐life products (cell phones, tires, computers, automotive parts, etc.) are attractive to third‐party remanufacturers, who may seriously cannibalize sales of the original manufacturer. In this paper, we develop models to support a manufacturer's recovery strategy in the face of a competitive threat on the remanufactured product market. We first analyze the competition between new and remanufactured products produced by a monopolist manufacturer and identify conditions under which the firm would choose not to remanufacture its products. We then characterize the potential profit loss due to external remanufacturing competition and analyze two entry‐deterrent strategies: remanufacturing and preemptive collection. We find that a firm may choose to remanufacture or preemptively collect its used products to deter entry, even when the firm would not have chosen to do so under a pure monopoly environment. Finally, we discuss conditions under which each strategy is more beneficial.  相似文献   
32.
33.
In recent years, the political nature of nonprofit funding has been well established, with research focusing on increased demands for accountability (Eikenberry and Kluver, 2004), difficulties in selecting accountability measures (Reed, Jones, and Irvine, 2005), and the shift from organizational mission that can occur while trying to adhere to funding requirements (Adcroft and Willis, 2005; Parsons and Broadbridge, 2004). This article examines the dynamics between a funder and the nonprofit organizations it funds within an evolving accountability process. Specifically, we use qualitative methods to examine the negotiations between the funder and the nonprofits. Both sides in the funding relationship face tensions as they attempt to work within the constraints of this specific funding regime while trying to maintain their focus on social justice outcomes.  相似文献   
34.
We investigated associations between retrospectively assessed timing of pubertal development, interpersonal interactions, and hypothalamic–pituitary–adrenal axis reactivity to an interpersonal stress task in 110 young adult women. Participants provided salivary cortisol samples at points prior and subsequent to a video‐taped conflict discussion with their romantic partner. Participants also provided subjective global ratings of their discussion on dimensions of conflict and support. For earlier developing girls, higher levels of interpersonal conflict were associated with greater physiological stress in anticipation of the discussion task and less physiological recovery following the discussion. In contrast, for later developing girls, low levels of conflict were associated with greater anticipatory stress and less physiological recovery. These findings have implications for understanding the influence of off‐time pubertal development on the lifetime development of young women.  相似文献   
35.
1. Walking groups provide activity and support for their members. 2. Exercise competes with anxiety and depression and may diminish these negative affects. 3. Most YMCAs provide financial aid by reducing fees for people with disabilities.  相似文献   
36.
Abstract

This paper considers the various issues that frame the development and use of measures of the subjective work environment. It begins by questioning the role of the work environment in determining occupational health, and explores the possible mechanisms by which that environment might exert its influence. It concludes that one of the important final common pathways is psycho-physiological in nature, and is rooted in individual perception and cognition and the experience of stress. Important for this model are the concepts of mediation and moderation. The measurement of the subjective work environment has often been idiosyncratic to the study in hand, and there are few well-established measures in common use. It is argued that researchers should be careful when deciding not to use established measures and effectively ‘invent’ their own. In developing new measures, decisions have to be made concerning the nature of the measure along with its ‘granularity’ and complexity. It is also argued that it is important that researchers should follow good psychometric practice in the development of those measures. Suggestions for ‘good practice’ are discussed. Attention is drawn to the issues of reliability and validity, and this paper discusses the role of triangulation in the planning and execution of data collection and analysis. The paper ends by reviewing the recommendations made towards the development and use of measures of the subjective work environment.  相似文献   
37.
Talking of HRD     
This paper draws upon research exploring the emergence of HRD within the British National Health Service (NHS), the aim being to investigate how HRD has been talked into being, is talked about and accomplished through talk. HRD is conceptualized as a socialand discursive construction, and as discursive action. It is argued that conceptualizing HRD as a social and discursive construction can help identify and explain changes in ways of thinking and talking about HRD. Conceptualizing HRD as discursive action can help explain and justify HRD activity, in that much of what HRD practitioners and academics ‘do’ is ‘talk’. This paper explores these concepts and introduces a typology of the discourses of training and development (T&D), HRD and strategic HRD (SHRD), labelled Tell, Sell and Gel. It is suggested that this typology is a useful analytical tool for those practising HRD, providing ameans for HRD professionals to identify and analyse, and possibly change, their practices and discourse(s). The paper introduces a way of identifying how HRD might be talked ‘about’ and theorizes how discursive activities (the talk) might be changing.  相似文献   
38.
This paper provides a review and synthesis of research literature on the effects of shift work on workers’ physical health, mental health/well-being, and family life. The focus is on current knowledge, unanswered questions, and new directions for future research. The selection of research literature is guided by a general conceptual framework that identifies predictor variables, moderating variables, and outcome variables. The paper concludes with a discussion of the variables that should be incorporated into an agenda for future research.  相似文献   
39.
40.
This paper explores the dilemmas involved in selecting appropriate theoretical and research material to help social workers in practice. Concentrating on the needs of those working in child care and protection, the paper uses the example of the area of child development knowledge to illustrate a process of presenting theory for practice. Specifically, the focus is on the redevelopment of a child development module for a post-qualifying certificate course in child care and protection that aims to encourage students to make critical use of current research and theory. The paper explains the reasoning behind the choice of attachment theory as the underpinning theoretical framework. It also addresses possible pitfalls in an uncritical use of such theory. The paper finally sets out how the module addresses the need social workers have for a framework to guide intervention in individual cases. The dimensions described are those of individual vulnerability or resilience and factors in the environment that are adverse or protective.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号