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   1414篇
  免费   48篇
  国内免费   14篇
管理学   168篇
民族学   50篇
人口学   26篇
丛书文集   137篇
理论方法论   106篇
综合类   619篇
社会学   326篇
统计学   44篇
  2024年   3篇
  2023年   8篇
  2022年   8篇
  2021年   25篇
  2020年   29篇
  2019年   24篇
  2018年   26篇
  2017年   15篇
  2016年   22篇
  2015年   22篇
  2014年   84篇
  2013年   197篇
  2012年   74篇
  2011年   111篇
  2010年   66篇
  2009年   74篇
  2008年   73篇
  2007年   67篇
  2006年   82篇
  2005年   66篇
  2004年   60篇
  2003年   49篇
  2002年   54篇
  2001年   23篇
  2000年   24篇
  1999年   18篇
  1998年   8篇
  1997年   6篇
  1996年   3篇
  1995年   3篇
  1993年   4篇
  1992年   3篇
  1991年   4篇
  1990年   3篇
  1989年   2篇
  1988年   3篇
  1986年   2篇
  1985年   11篇
  1984年   22篇
  1983年   14篇
  1982年   17篇
  1981年   23篇
  1980年   16篇
  1979年   9篇
  1978年   18篇
  1977年   1篇
排序方式: 共有1476条查询结果,搜索用时 640 毫秒
41.
广西是我国经济社会发展相对滞后的地区之一,也是我国社会主义新农村建设任务更为艰巨的地区之一。由于多方面的原因,广西的社会发展相对滞后,进一步提高农村生产劳动力、创造力和可持续发展能力问题,是建设社会主义新农村必须面对的一个重要课题。为了更快更好地建设我区的社会主义新农村,使我区农村生产更加发展、农民生活更加富裕,乡风更加文明,村容更加整洁,管理更加民主,我们必须对我区的农业产业化问题、农民专业合作经济组织问题、新型农民培养造就问题等进行研究和探讨。  相似文献   
42.
The implications of constrained dependent and independent variables for model parameters are examined. In the context of linear model systems, it is shown that polyhedral constraints on the dependent variables will hold over the domain of the independent variables when a set of polyhedral constraints is satisfied by the model parameters. This result may be used in parameter estimation, in which case all predicted values of the dependent variables are consistent with constraints on the actual values. Also, the implicit constraints that define the set of parameters for many commonly used linear stochastic models with an error term yield values of the dependent variables consistent with the explicit constraints. Models possessing these properties are termed “logically consistent”.  相似文献   
43.
44.
45.
Evidence-based practice (EBP) is upheld as best practice in health and human services but there is a need for more research on how this approach can be enabled in day-to-day practice. This qualitative study examined EBP with allied health managers and practitioners in a health service network (n = 17). The findings highlight the systemic nature of EBP and the extent to which it involves both individual and environmental attributes. Individual attributes include clear understanding of EBP, relevant knowledge and skills, and motivation and passion. Environmental attributes are the presence of an organisational culture that values and prioritises EBP and an integrated mix of research support services, professional development activities, supervision and mentorship, and university partnerships. Theoretical frameworks can be useful for making sense of complex processes, planning, and evaluating change. Therefore, the findings are presented as a framework incorporating reflective questions relating to the elements identified as enabling EBP.  相似文献   
46.
本文考证了明清时期浙江以及镶黄旗6位进士的生平、事迹及其家世,重点考述了嘉善大姓丁氏。丁氏一族自宋至今千有余年,人才辈出,如明南都工部尚书丁宾、清初诗人丁澎、云贵总督丁思孔,均出自丁氏。丁氏一族来自西域极有可能。本文还提出丁氏可能为宋时入华的中亚国王所非尔之余脉的观点,为进一步深入研究提供了重要的线索。  相似文献   
47.
近年来国外对教师差别行为的研究取得了较大的成就。文章从差别行为的研究范式、结构与测量及研究内容三个方面对该领域的现状进行描述,并在此基础上对该现象的未来发展趋势进行展望,以期人们能更好地把握该领域的发展轮廓,推动该领域的研究与发展。  相似文献   
48.
Marketing communication intensity (i.e., the ratio of advertising and promotional expenditures to sales) has been an important topic for both business managers and academics. Here, we investigate cross-sectional and time-series variation of communication intensity due to: type of offering (product versus service) and type of market (consumer versus industrial). Overall, we find that both of these factors affect variation of communication intensity across industries and over time. However, the effect of market type is much more dramatic than the effect of offering type. Such knowledge about patterns in communication intensity levels helps managers make decisions about how much to spend on advertising and promotion.  相似文献   
49.
In this paper, five alternative advertising policies that belong to the advertising pulsation class are compared analytically for linear and concave response functions using a modified version of the Vidale-Wolfe model. The results of the research show that (1) For both linear and concave response functions, advertising pulsing/maintenance policy dominates advertising pulsing policy but is dominated by the Uniform Advertising Policy. For convex response functions, the order of dominance is reversed. (2) For linear response functions, uniform advertising policy dominates the impulse advertising policy but is dominated by the chattering advertising policy. (3) For concave response functions, uniform advertising policy dominates both the impulse advertising policy and the chattering advertising policy. (4) For convex response functions, chattering advertising policy dominates both the advertising pulsing policy and the impulse advertising policy. The Vidale-Wolfe model is estimated using the well-known Lydia Pinkham data. Optimality analysis shows that the company was overadvertising about half of the time studied. Overadvertising seems to have produced appreciable gain in sales and created significant barriers to competitive entry at a little cost in terms of foregone profits.  相似文献   
50.
Practitioners and researchers have long been interested in achieving the highest response rate within resource constraints on their mailed surveys. Achieving this high response rate typically has required the selection of the right mix of response-facilitating techniques. The selection decisions were generally made under the assumption that the response-facilitating techniques act independently of one another. The authors have examined the validity of this independence assumption by identifying the major response facilitators in use and then analyzing the results of 531 independent mail survey studies. The authors conclude that major facilitators do not function independently. In fact, it was found that significant joint action interactive effects on response rates do exist. Practitioners and researchers who are faced with the survey design decisions of choosing response facilitators can receive assistance by reviewing the results of this diverse collection of reported experiences.  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