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   6044篇
  免费   217篇
管理学   1018篇
民族学   49篇
人才学   5篇
人口学   475篇
丛书文集   45篇
理论方法论   646篇
综合类   54篇
社会学   3090篇
统计学   879篇
  2023年   46篇
  2022年   30篇
  2021年   45篇
  2020年   129篇
  2019年   165篇
  2018年   165篇
  2017年   227篇
  2016年   205篇
  2015年   157篇
  2014年   176篇
  2013年   942篇
  2012年   236篇
  2011年   202篇
  2010年   166篇
  2009年   185篇
  2008年   195篇
  2007年   164篇
  2006年   186篇
  2005年   224篇
  2004年   180篇
  2003年   178篇
  2002年   172篇
  2001年   154篇
  2000年   118篇
  1999年   110篇
  1998年   90篇
  1997年   66篇
  1996年   79篇
  1995年   62篇
  1994年   83篇
  1993年   97篇
  1992年   74篇
  1991年   79篇
  1990年   65篇
  1989年   52篇
  1988年   57篇
  1987年   57篇
  1986年   45篇
  1985年   62篇
  1984年   70篇
  1983年   51篇
  1982年   58篇
  1981年   38篇
  1980年   34篇
  1979年   34篇
  1978年   29篇
  1977年   38篇
  1976年   25篇
  1975年   33篇
  1974年   34篇
排序方式: 共有6261条查询结果,搜索用时 619 毫秒
991.
A Dynamic Model of Work Satisfaction: Qualitative Approaches   总被引:1,自引:0,他引:1  
Traditional work satisfaction research iscriticized for its personalistic approach inconceptualization and measurement. Its results aredoubted because of the artificially high proportions ofsatisfied. In order to overcome some of theseshortcomings, the extended model of different forms ofwork satisfaction originally proposed by Bruggemann(1974) is validated. Six forms of work satisfaction(progressive, stabilized, resigned satisfaction;constructive, fixated, resigned dissatisfaction) arederived from the constellation of four constituentvariables: comparison of the actual work situation andpersonal aspirations, global satisfaction, changes inlevel of aspiration, controllability at work. Resultsfrom semistructured interviews, a free Q-sort, and aquestionnaire for differentiating forms of worksatisfaction for 46 nurses provide support for the model.Various methods proved useful in accessing particularaspects of the underlying cognitive and evaluativeprocesses in the formation of different forms of work satisfaction. Implications for personnelmanagement and studies in organizational behavior(performance, intervention strategies) arediscussed.  相似文献   
992.
993.
Over the last ten years the concept of ‘competence’ has emerged as a central concept for competitive strategy. Several rich theoretical streams have contributed an extensive array of frameworks, definitions and papers using the concept. There is now a need to integrate these many contributions. Indeed, some of the frustration expressed recently by academics may be due to the large volume of conversation and the low level of integration. A concept that is considered so useful that many writers have incorporated it in their work will be of little value if it takes on different meanings for every use. If competence is to be used to explain relationships among variables and to build richer understandings of the roots of competitive advantage, then the field needs to engage in a serious conversation that attempts to focus this concept. Competence needs to be understood in a way that is faithful to its theoretical roots, allows the multiple dimensions that underpin competitive advantage to be meaningfully integrated and is specific enough that meaningful differences can emerge when used as a variable in empirical research. This paper seeks to begin a conversation toward that end by presenting a conceptualization that meets all of these requirements. The paper builds its conceptualization around satisfying the elements of a dynamic model of the relationship between competence and competitive advantage.  相似文献   
994.
This paper assesses the supply of business advice using new empirical evidence from a large-scale survey of SMEs. The chief focus of the paper is on a comparison of suppliers that operate in different environments of regulation, contract and reputation. The paper argues that interaction intensity varies with the level of information asymmetry of these different environments, between different types of service supplier and their clients. Interaction intensity between suppliers also varies as a result of the level of trust they enjoy: for example, the low trust enjoyed by consultants appears to encourage higher intensity of interaction which improves the tailoring of the service to the client's needs and enhances impact. The paper assesses interaction intensity using the existence of site visits and/or a written brief/contract as indicators. Although these measures have limitations, the paper demonstrates clear and significant differences between suppliers in terms of interaction intensity, use of contracts and impact in three broad categories: private-sector consultancy (low trust, high intensity, high impact), business associations (high trust, low intensity, moderate impact) and government support agencies (moderate trust, moderate to high intensity, moderate or low impact). Multivariate estimation methods demonstrate that significant differences in interaction intensity, use of contracts and impact by client type are much less important than differences in supplier type. This indicates that suppliers generally develop more into niche service fields or groups of services rather than niches related to types of firm.  相似文献   
995.
Schools of family therapy have been highly selective in their presentation of the theory/practice nexus. Family therapy's method of teaching (the infamous workshop format) has hampered it's growth as a practice and academic discipline. An inadvertent, unhelpful legacy of Gregory Bateson has been that lesser scholars have aped his capacity to draw on other fields of knowledge without his rigour, or his propriety. Family therapy's cavalier dealings with bodies of knowledge and its reliance on miraculous case studies has resulted in the bypassing of individual suffering. The heroic narrative that has dominated family therapy has precluded other styles of stories for therapists, theorists and clients. Family therapy has been dominated by the myth of the hero, with its accompanying motif of the puer eternus (the eternal youth). Family therapy has been forever reinventing itself, forever the ‘new kid on the block’. This fascination with newness has interfered with family therapy's capacity, at times, to consolidate its genuine value as a therapeutic entity.  相似文献   
996.
997.
The paper attempts to build a qualitative ‘two‐person’ model which encapsulates the complex relationship between transport policy‐making and science, by personifying the relationship as a dialogue between ‘the politician’ and ‘the scientist’. The approach is illustrated by making references to the methods and results of the research project OPTIMA, which has attempted to find optimal urban transport policies in a number of European cities. Whilst finding much usefulness in the model, the paper recognizes its limitations and makes recommendations of a number of extensions that could be made.  相似文献   
998.
999.
Quality adjusted survival has been increasingly advocated in clinical trials to be assessed as a synthesis of survival and quality of life. We investigate nonparametric estimation of its expectation for a general multistate process with incomplete follow-up data. Upon establishing a representation of expected quality adjusted survival through marginal distributions of a set of defined events, we propose two estimators for expected quality adjusted survival. Expressed as functions of Nelson-Aalen estimators, the two estimators are strongly consistent and asymptotically normal. We derive their asymptotic variances and propose sample-based variance estimates, along with evaluation of asymptotic relative efficiency. Monte Carlo studies show that these estimation procedures perform well for practical sample sizes. We illustrate the methods using data from a national, multicenter AIDS clinical trial.  相似文献   
1000.
Complex, multihazard risks such as private groundwater contamination necessitate multiannual risk reduction actions including seasonal, weather-based hazard evaluations. In the Republic of Ireland (ROI), high rural reliance on unregulated private wells renders behavior promotion a vital instrument toward safeguarding household health from waterborne infection. However, to date, pathways between behavioral predictors remain unknown while latent constructs such as extreme weather event (EWE) risk perception and self-efficacy (perceived behavioral competency) have yet to be sufficiently explored. Accordingly, a nationwide survey of 560 Irish private well owners was conducted, with structural equation modeling (SEM) employed to identify underlying relationships determining key supply management behaviors. The pathway analysis (SEM) approach was used to model three binary outcomes: information seeking, post-EWE action, and well testing behavior. Upon development of optimal models, perceived self-efficacy emerged as a significant direct and/or indirect driver of all three behavior types—demonstrating the greatest indirect effect (β = −0.057) on adoption of post-EWE actions and greatest direct (β = 0.222) and total effect (β = 0.245) on supply testing. Perceived self-efficacy inversely influenced EWE risk perception in all three models but positively influenced supply awareness (where present). Notably, the presence of a vulnerable (infant and/or elderly) household member negatively influenced adoption of post-EWE actions (β = −0.131, p = 0.016). Results suggest that residential and age-related factors constitute key demographic variables influencing risk mitigation and are strongly mediated by cognitive variables—particularly self-efficacy. Study findings may help contextualize predictors of private water supply management, providing a basis for future risk-based water interventions.  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