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   841篇
  免费   32篇
  国内免费   8篇
管理学   62篇
民族学   2篇
人口学   1篇
丛书文集   67篇
理论方法论   3篇
综合类   644篇
社会学   43篇
统计学   59篇
  2023年   1篇
  2022年   3篇
  2020年   4篇
  2019年   5篇
  2018年   11篇
  2017年   16篇
  2016年   25篇
  2015年   28篇
  2014年   23篇
  2013年   66篇
  2012年   34篇
  2011年   48篇
  2010年   46篇
  2009年   41篇
  2008年   41篇
  2007年   69篇
  2006年   65篇
  2005年   54篇
  2004年   58篇
  2003年   51篇
  2002年   55篇
  2001年   38篇
  2000年   22篇
  1999年   18篇
  1998年   16篇
  1997年   5篇
  1996年   12篇
  1995年   11篇
  1994年   2篇
  1992年   3篇
  1991年   2篇
  1990年   3篇
  1989年   2篇
  1988年   3篇
排序方式: 共有881条查询结果,搜索用时 15 毫秒
1.
网络直播聚合犯罪愈演愈烈,主要集中于知识产权犯罪和色情犯罪领域,国内目前对该类犯罪的研究较少。网络直播聚合犯罪与社会结构方面的紧张、个人违法性意识方面的紧张存在关系,前者主要体现为:商品拜物教影响下的部分民众设定目标时日益以物质获得为参考系;阶层固化使得处于部分底层民众无法通过制度性手段实现目标。后者主要体现为网络直播聚合犯罪者实施犯罪,与其权衡犯罪成本与获利数额、心存侥幸有关。在对案例进行实证分析的前提下,归纳概括出此类犯罪的三个主要特征:犯罪主体呈现出低龄化、学历较低、无业状态较多的特点;分工的复杂性、网络的匿名性使得犯罪的隐蔽性较强;黑灰产业链业已形成并成熟。对此类犯罪的治理,应当坚持惩防并举,在惩罚方面应当注意网络直播聚合共同犯罪认定规则的变通适用,以及网络直播聚合犯罪立法扩张、司法限缩与严格执法之间的关系;在预防方面应当构建国家、社会两位一体的预防模式。  相似文献   
2.
Multigenerational households are increasingly affecting both the individual and family as well as community organizations and social policies. Social work and other family studies students can profit from educational modalities that use adult learning applications through a systems life-course perspective, the whole family aging over time. Family simulation software—addressing multigenerational families, such as two or more adult generations living together—builds on a previous paper (Marriage & Family Review, Feb. 2015). Social class, among other demographic and environmental variables, is emphasized. Agent-based family social network simulation of multigenerational families can facilitate experiential learning. An automatically generated life events report, based on both factual data and specific family characteristics, can be used as a classroom case study for role playing and assessing.  相似文献   
3.
As a contribution to the ongoing tradition of critically assessing documents for research, this paper aims to highlight materiality as a key factor in the co-shaping of knowledge derived from digital documents. The paper first builds upon prior debates in document studies with work from the fields of Science and Technology Studies, and Communication Studies, to establish the role of document materiality in the interpretative process. By first establishing digital documents’ material reality as electrical signal, the paper then discusses the interpretative role of software, in both the representation of that signal for human interpretation and the production of the document through software tools. Finally, the paper considers the implications for persistence and access to digital documents posed by their material reality and the private archival contexts in which they often reside.  相似文献   
4.
运用现代教育技术提高教学效率是民族地区普通中学发展的必由之路。只有正确认识民族地区普通中学教育技术应用的背景,加强对此类教学资源的管理,才能使之更好服务于教学,提高民族地区教学实践活动的效率。  相似文献   
5.
研究了碎纸片的拼接复原问题,建立了合理有效的碎纸片拼接复原的数学模型;给出了数学软件实现自动拼接的具体算法;结合人工拼接得出复原图片;最后,对所给的拼接方法提出了改进方向.  相似文献   
6.
Concept mapping is now a commonly-used technique for articulating and evaluating programmatic outcomes. However, research regarding validity of knowledge and outcomes produced with concept mapping is sparse. The current study describes quantitative validity analyses using a concept mapping dataset. We sought to increase the validity of concept mapping evaluation results by running multiple cluster analysis methods and then using several metrics to choose from among solutions. We present four different clustering methods based on analyses using the R statistical software package: partitioning around medoids (PAM), fuzzy analysis (FANNY), agglomerative nesting (AGNES) and divisive analysis (DIANA). We then used the Dunn and Davies-Bouldin indices to assist in choosing a valid cluster solution for a concept mapping outcomes evaluation. We conclude that the validity of the outcomes map is high, based on the analyses described. Finally, we discuss areas for further concept mapping methods research.  相似文献   
7.
8.
Quantitative risk assessments for physical, chemical, biological, occupational, or environmental agents rely on scientific studies to support their conclusions. These studies often include relatively few observations, and, as a result, models used to characterize the risk may include large amounts of uncertainty. The motivation, development, and assessment of new methods for risk assessment is facilitated by the availability of a set of experimental studies that span a range of dose‐response patterns that are observed in practice. We describe construction of such a historical database focusing on quantal data in chemical risk assessment, and we employ this database to develop priors in Bayesian analyses. The database is assembled from a variety of existing toxicological data sources and contains 733 separate quantal dose‐response data sets. As an illustration of the database's use, prior distributions for individual model parameters in Bayesian dose‐response analysis are constructed. Results indicate that including prior information based on curated historical data in quantitative risk assessments may help stabilize eventual point estimates, producing dose‐response functions that are more stable and precisely estimated. These in turn produce potency estimates that share the same benefit. We are confident that quantitative risk analysts will find many other applications and issues to explore using this database.  相似文献   
9.
Computer-assisted qualitative data analysis software (CAQDAS) programs are established tools for qualitative research. Making informed decisions when using them requires researchers to understand how they affect research practices and outcomes. In this article we consider the impact of CAQDAS on researcher reflexivity. Reviewing three decades of literature, we identify specific ‘reflexive moments’ experienced by CAQDAS users, the contexts in which they occur, the issues they raise, and the reflexive awareness they generate. The ways in which CAQDAS can enhance or undermine researcher reflexivity are also reported. By doing so, we aim to help researchers and especially research students (and their supervisors) understand the relationship between CAQDAS and reflexivity and the reflexive moments they may encounter when using such software.  相似文献   
10.
袁野 《学术探索》2012,(1):70-73
要提升我国软件产业的竞争力,研究其影响因素是非常重要的课题。本文首先对产业竞争力的概念、产业竞争力影响模型以及软件产业竞争力的研究进行简要回顾,然后详细探讨了软件产业竞争的特点,在此基础上构建了我国软件产业国际竞争力影响因素模型,接着对模型中的各个要素,如政府的作用、人力资源、产业组织、产业价值链、企业管理等进行了深入的分析,最后对各个要素的相互关系进行了初步论述。  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