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   1667篇
  免费   49篇
管理学   220篇
民族学   11篇
人口学   134篇
丛书文集   10篇
理论方法论   220篇
综合类   15篇
社会学   855篇
统计学   251篇
  2023年   10篇
  2022年   10篇
  2021年   17篇
  2020年   56篇
  2019年   75篇
  2018年   82篇
  2017年   85篇
  2016年   62篇
  2015年   46篇
  2014年   78篇
  2013年   294篇
  2012年   61篇
  2011年   62篇
  2010年   68篇
  2009年   40篇
  2008年   46篇
  2007年   55篇
  2006年   55篇
  2005年   47篇
  2004年   43篇
  2003年   33篇
  2002年   44篇
  2001年   37篇
  2000年   24篇
  1999年   32篇
  1998年   20篇
  1997年   28篇
  1996年   16篇
  1995年   15篇
  1994年   14篇
  1993年   15篇
  1992年   9篇
  1991年   12篇
  1990年   9篇
  1989年   14篇
  1988年   8篇
  1987年   8篇
  1986年   5篇
  1985年   9篇
  1984年   9篇
  1983年   7篇
  1982年   3篇
  1981年   8篇
  1980年   8篇
  1979年   4篇
  1978年   7篇
  1977年   5篇
  1976年   6篇
  1975年   3篇
  1968年   3篇
排序方式: 共有1716条查询结果,搜索用时 0 毫秒
91.
The term ‘end-to-end’ process management is now commonplace in the language and practice of operations. Managers are encouraged to migrate from functional process management to end-to-end process management to realise a range of performance improvements. However, these improvements are often elusive; the specific challenges associated with such a migration are under-researched. This paper uses a cross-sector study to identify the challenges of end-to-end process management and to generate practical managerial guidance. Three areas are identified that demand particular managerial attention: the need to move beyond process mapping, the role of IT in process management and maintaining the process infrastructure as a strategic asset. More significantly, the findings highlight the need for greater conceptual clarity regarding the end-to-end concept itself. The existing literature suggests that scope is the primary differentiator of the end-to-end process – the requirement to manage an extended boundary from customer order through to customer fulfilment. However, this research suggests that the end-to-end concept is more complex, comprising of three core constructs with seven dimensions: scope (boundary conditions, sequence/flow and controls); scale (resources and input/output transformation) and complexity (interrelationships and orientation). End-to-end process management involves much more than an extended boundary. It requires a systemic perspective and clarity regarding controls and transforming resources.  相似文献   
92.
This paper details a survey of coal miners’ views on the bases for risk-taking. While literature exists on the subject of risk-taking in mines, comparatively few studies have sought to elicit the views of mine personnel themselves. An 83-item questionnaire, grounded upon insights from an earlier qualitative study, was developed and distributed to a sample of mine personnel (N=932). Results were analysed by means of principal components, factor analysis, an iterative refinement of the data set resulting in the development of a three-factor model that was considered to reflect potentially important dispositional influences on risk-taking amongst operational staff in mines. Derived constructs, identified as time pressure, management commitment and confidence in ability to control risk, were found to possess moderate to high levels of internal consistency (α statistic) and high face validity. Findings are discussed with reference to insights from both cognitive risk research and more recent work within the safety culture/climate framework.  相似文献   
93.
To protect and secure food resources for the United States, it is crucial to have a method to compare food systems’ criticality. In 2007, the U.S. government funded development of the Food and Agriculture Sector Criticality Assessment Tool (FASCAT) to determine which food and agriculture systems were most critical to the nation. FASCAT was developed in a collaborative process involving government officials and food industry subject matter experts (SMEs). After development, data were collected using FASCAT to quantify threats, vulnerabilities, consequences, and the impacts on the United States from failure of evaluated food and agriculture systems. To examine FASCAT's utility, linear regression models were used to determine: (1) which groups of questions posed in FASCAT were better predictors of cumulative criticality scores; (2) whether the items included in FASCAT's criticality method or the smaller subset of FASCAT items included in DHS's risk analysis method predicted similar criticality scores. Akaike's information criterion was used to determine which regression models best described criticality, and a mixed linear model was used to shrink estimates of criticality for individual food and agriculture systems. The results indicated that: (1) some of the questions used in FASCAT strongly predicted food or agriculture system criticality; (2) the FASCAT criticality formula was a stronger predictor of criticality compared to the DHS risk formula; (3) the cumulative criticality formula predicted criticality more strongly than weighted criticality formula; and (4) the mixed linear regression model did not change the rank‐order of food and agriculture system criticality to a large degree.  相似文献   
94.
We develop a parsimonious model to study the equilibrium and socially optimal decisions of banks to enter, trade in, and possibly exit, an OTC market. Although we endow all banks with the same trading technology, banks' optimal entry and trading decisions endogenously lead to a realistic market structure composed of dealers and customers with distinct trading patterns. We decompose banks' entry incentives into incentives to hedge risk and incentives to make intermediation profits. We show that dealer banks enter more than is socially optimal. In the face of large negative shocks, they may also exit more than is socially optimal when markets are not perfectly resilient.  相似文献   
95.
Abstract Dairy farmers in Michigan's Upper Peninsula, an economically marginal rural region, are encumbered by contextual constraints that are not similarly faced by their downstate counterparts. However, this does not mean that they are any less ambitious or less efficient in dealing with the resources available to them. Indeed, dairying and similar small-scale economic enterprises in this and other marginal contexts may be quite competitive and sustainable if appropriate sociopolitical supports are instituted and, in the case of dairying, if marketing orders and regulatory policies are formulated and implemented in light of their impact upon the economic growth and viability of the wider region. To explore this issue, we consider the situations, basic characteristics, and restructuring trends over time of dairy farms in three upstate localities as compared with that of a downstate dairy farming community.  相似文献   
96.
Privatisation of the state-owned British railway system was completed in 1997. The following 6 years saw four serious fatal train accidents, leading to 49 deaths. These were the train collisions at Southall in 1997 and Ladbroke Grove in 1999, each caused by trains passing red signals, and the derailments at Hatfield in 2000 and Potters Bar in 2002, each caused by defective track. Has safety been compromised by the sell-off of the railways? Andrew Evans looks at the evidence and asks has privatisation led to more accidents?  相似文献   
97.
Regression modeling is used to predict gambling patterns in Australia on the basis of the unit record files underlying the Australian Bureau of Statistics’ Household Expenditure Survey of 6,892 households. The four largest categories of gambling expenditure are examined, namely: lottery tickets, lotto-type games and instant lottery (scratch cards), TAB (pari-mutuel wagering) and related on course betting, and poker (slot) machines and ticket machines. Determining factors analyzed include the source and level of household income, family composition and structure, welfare status, gender, age, ethnicity and geographic location. Apart from the determinants of expenditure varying widely across the different types of gambling activity, the results generally indicate that the source of household income is more important than the level of income and that household composition and regional location are likewise significant in determining gambling expenditure.   相似文献   
98.
Through examining the case of people with epilepsy (which, as we demonstrate, has an ambiguous status in relation to both popular and academic conceptions of disability) we explore the fluid, negotiable and contingent nature of identity and, in particular, the identification as ‘disabled’. Disability, we argue, cannot be reduced to either biology or social oppression, or even primarily to biological or social factors: it is the outcome of a complex interaction between a multiplicity of factors – biological, environmental, social, psychological, cultural and political – which will interact and be experienced differently by different people, at different times and in different situations. Rather than conceiving of disability in ‘all or nothing’ terms and of differing explanations as competing and mutually exclusive, it would be more productive to see them as partial and potentially complementary contributions to the better understanding of a complex and multifarious reality.  相似文献   
99.
U.S.‐born children of immigrants may be less likely to receive some social services than are children of native‐born parents if foreign‐born parents who are themselves ineligible are less likely to apply on their children's behalf. We use retrospective data from a sample of about 2,400 lowincome households in three U.S. cities to determine whether children with foreign‐born caregivers are less likely than children with native‐born caregivers to receive benefits from any of five programs over a two‐year period: TANF, SSI, Food Stamps, Medicaid, and WIC. The most significant disparities between children of citizen and noncitizen caregivers are in TANF and food stamp use.  相似文献   
100.
This discussion paper will examine the lessons from the Munro Review relevant for looked after children. Although the Munro Review focuses on child protection, we will argue that some of its key principles have relevance for understanding looked after childhoods. The Munro Review provides an analysis of the current state of the child protection system, challenging bureaucratised practice and arguing for a reclaiming of professional social work identity, knowledge and understanding. There are three key principles of the Munro Review that this paper will focus upon. The first two are the recognition that risk cannot be eradicated and the bureaucratisation of practice is an inadequate response to the demand for public accountability. The third principle is that ethical integrity lies at the heart of services for children in public care. The key message of this paper is that a Munro approach can transform looked after childhoods. However, the current ‘child protection’ model of social work in England may prevent this shift in social work practice.  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