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   317篇
  免费   8篇
管理学   40篇
民族学   5篇
人口学   23篇
丛书文集   1篇
理论方法论   24篇
综合类   2篇
社会学   193篇
统计学   37篇
  2023年   5篇
  2022年   1篇
  2021年   8篇
  2020年   3篇
  2019年   10篇
  2018年   11篇
  2017年   16篇
  2016年   15篇
  2015年   12篇
  2014年   17篇
  2013年   40篇
  2012年   21篇
  2011年   11篇
  2010年   7篇
  2009年   10篇
  2008年   14篇
  2007年   14篇
  2006年   13篇
  2005年   13篇
  2004年   15篇
  2003年   8篇
  2002年   7篇
  2001年   2篇
  2000年   8篇
  1999年   6篇
  1998年   3篇
  1997年   5篇
  1996年   5篇
  1995年   3篇
  1994年   2篇
  1993年   2篇
  1992年   1篇
  1989年   4篇
  1987年   1篇
  1983年   1篇
  1982年   4篇
  1980年   1篇
  1979年   2篇
  1978年   1篇
  1976年   2篇
  1975年   1篇
排序方式: 共有325条查询结果,搜索用时 15 毫秒
21.
This article examines current career thinking and employability management practices within the Polish Information and Communication Technology (ICT) sector. The aim of this contribution is to identify career management problems and to determine obstacles for implementing employability management practices at a company level. Semi-structured interviews aimed at establishing company needs were conducted with 18 managers of small and medium-sized ICT enterprises in Poland. These firms appear to apply various developmental approaches to stimulate competitive advantage. Faced with a more demanding environment, firms aim for versatility rather than adopting simplified solutions. Managing the careers and employability of ICT professionals is acknowledged as vitally important for the survival and development of ICT companies.  相似文献   
22.
A stochastic model for setting performance objectives for Salmonella in the broiler supply chain was developed. The goal of this study was to develop a model by which performance objectives for Salmonella prevalence at various points in the production chain can be determined, based on a preset final performance objective at the end of the processing line. The transmission of Salmonella through the broiler production chain was modeled. The prevalence at flock level was calculated from the measured prevalence at sample level. The transmission model is based on data on the occurrence of Salmonella collected in the Dutch broiler production chain during several years. The developed model can be used by policymakers and industry to determine economically and politically acceptable performance objectives for various points of the production chain and to draw conclusions about which interventions are most appropriate.  相似文献   
23.
24.
Predictors of prenatal and postnatal parenting efficacy were examined in a sample of 115 primiparous mothers and 73 fathers in an effort to examine the association between preexisting parental characteristics and prenatal efficacy and the association between prenatal characteristics and postnatal efficacy when aspects of the current parenting context are taken into account. The most robust predictors of maternal postnatal efficacy included both prenatal efficacy, which significantly predicted postnatal efficacy independent of all other predictors including the current parenting context, and perceived infant temperamental reactivity as both a main effect and as buffered by social support. This was not the case for fathers, whose postnatal efficacy was primarily a function of their amount of involvement in parenting tasks and social support. The differential predictors of mother and father efficacy as well as their implications for future research are discussed.  相似文献   
25.
26.
27.
Population projections are often required for many geographical areas, and must be prepared with maximal computer and minimal analytical effort. At the same time, realistic age detail forecasts require a flexible means of treating age-specific net migration. This report presents a migration projection technique compatible with these constraints. A simplified version of Pittenger's model is used, where future migration patterns are automatically assigned from characteristics of historical patterns. A comparative test of age pattern accuracy for 1970–1980 indicates that this technique is superior to the commonly used plus-minus adjustment to historical rates.  相似文献   
28.
29.
All parents in Norway with children aged one to three, who do not attend publicly subsidised day care, are entitled to a cash-for-care (CFC) subsidy. Studies have shown that the reform has reduced mothers labour supply. In this paper we analyse wage effects of the reform. We put forward a framework for evaluating reforms when reforms are uniformly and equally accessible nation-wide. First, running a simple Difference in differences (DD) analysis, results suggest that the CFC reform has reduced the mothers wages. However, after controlling for the age of the child effect, by running a triple difference approach, we no longer find any evidence of negative wage effects.This revised version was published online in May 2005 with corrections to the authors name and to the heading of table A2.  相似文献   
30.
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