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   26064篇
  免费   743篇
  国内免费   3篇
管理学   3652篇
民族学   126篇
人口学   2314篇
丛书文集   91篇
教育普及   1篇
理论方法论   2347篇
综合类   261篇
社会学   13141篇
统计学   4877篇
  2023年   151篇
  2021年   149篇
  2020年   417篇
  2019年   612篇
  2018年   724篇
  2017年   930篇
  2016年   729篇
  2015年   500篇
  2014年   701篇
  2013年   4599篇
  2012年   878篇
  2011年   844篇
  2010年   631篇
  2009年   530篇
  2008年   687篇
  2007年   638篇
  2006年   678篇
  2005年   572篇
  2004年   551篇
  2003年   466篇
  2002年   493篇
  2001年   607篇
  2000年   570篇
  1999年   526篇
  1998年   428篇
  1997年   370篇
  1996年   372篇
  1995年   398篇
  1994年   357篇
  1993年   367篇
  1992年   410篇
  1991年   419篇
  1990年   425篇
  1989年   359篇
  1988年   369篇
  1987年   308篇
  1986年   341篇
  1985年   359篇
  1984年   341篇
  1983年   308篇
  1982年   250篇
  1981年   203篇
  1980年   236篇
  1979年   271篇
  1978年   218篇
  1977年   177篇
  1976年   166篇
  1975年   134篇
  1974年   161篇
  1973年   112篇
排序方式: 共有10000条查询结果,搜索用时 906 毫秒
951.
The Malaysian Quality of Life Index (MQLI) released by the Economic Planning Unit (EPU), has led authors to search for alternative method of expressing this index. One of the limitations in MQLI computations is the failure to recognise unequal weights for each accounted component. This paper offers a new way of expressing the quality of life index using a mathematical modelling based on fuzzy sets theory and the proposed weights based on Maslow’s theory of hierarchical human needs. The indices of 11 components that were used to compute MQLI, again be gathered as a basis in expressing a new Malaysian Fuzzy Quality of Life Index (MFQLI). The new indices for each component yielded through a normalisation process prior weighting and aggregation to compose a new MFQLI. It was found that a fuzzy sets approach with the inclusion of weights based on human needs yielded a better index of quality of life than the MQLI.  相似文献   
952.
Using confidential microdata from the US Census Bureau, we investigate the performance of Asian-owned businesses. Using regression estimates and a special non-linear decomposition technique, we explore the role that class resources, such as financial capital and human capital, play in contributing to the relative success of Asian businesses. We find that Asian-owned businesses are more successful than white-owned businesses for two main reasons—Asian owners have high levels of human capital and their businesses have substantial start-up capital. Using detailed information on both the owner and the firm, we estimate the explanatory power of several additional factors.
Robert W. Fairlie (Corresponding author)Email:
  相似文献   
953.
Determining priority importance is a matter of concerns among the organization to improve their performance. One of the important aspects that should be considered by the organization is management of human resources, comprising of members who have their own family life. In this paper, we deliver a new perspective for organization to provide priority importance for their members with respect to family matters in order to inculcate the sense of belonging in the organization. To be effective in considering family matters in the organizational policy making, closer look of family characteristics are required. The idea of translating several family characteristics as quality variables and applying the quality function deployment (QFD) method to these variables could present a new way of improving the decision making in the organization by considering the process of decision in the family. Quality function deployment for family (QFDF) produces a friendly interpretation of a highly complex and intangible matters around family life; thus, making the assessment of a family easier. QFD is applied on the data gathered from a questionnaire survey based on 1,213 families in West Malaysia, Malaysia. Twelve variables are identified as voice of family, where seven of them are found to have the highest priority of importance. These variables could also be translated into quality variables in the context of organization, the strategy of improvement for the family could be interpreted as strategy for improvement in the organization. Furthermore, the results of this study provide suggestion to improve actions for managing human resource. In the discussion, three most high ranked variables from both perspectives of family and organization are considered.  相似文献   
954.
中世纪英国宪政史研究的新理路   总被引:2,自引:0,他引:2  
中国人民大学孟广林教授与英国约克大学M.阿莫诺教授就如何研究中世纪英国宪政史进行了学术对话,在不少重要问题上达成了基本共识:应当肯定斯塔布斯及其“牛津学派”的杰出学术贡献,但也须克服其“宪政主义”历史观的局限性;要重视依据“政治社会”这一新概念,来深化对政治群体与政治冲突的研究;“王在法下”的确是当时流行的政治观念,但国王是否受到法律和议会的限制,则是由王权与王国政治群体之间的力量对比所决定的,所谓的“兰加斯特宪政主义”并不存在;在这一研究领域,新历史主义、中西历史比较等新方法都有重要的学术价值。  相似文献   
955.
基于标准过程的供应链管理模型的研究   总被引:1,自引:0,他引:1  
企业业务过程是通过一系列功能和任务的实施来完成的。功能和任务可以用抽象的标准过程陀螺模型和标准过程链模型加以描述。本文论述了标准过程陀螺模型的定义及意义,建立了基于标准过程的标准过程链模型和供应链管理模型。指出e-Commerce构架了供应链环节间的相互联系。  相似文献   
956.
This paper is an assessment of the impact of child support enforcement and welfare policies on nonmarital teenage childbearing and motherhood. We derive four hypotheses about the effects of policies on nonmarital teenage childbearing and motherhood. We propose that teenage motherhood and school enrollment are joint decisions for teenage girls. Based on individual trajectories during ages 12–19, our analysis uses an event history model for nonmarital teenage childbearing and a dynamic model of motherhood that is jointly determined with school enrollment. We find some evidence that child support policies indirectly reduce teen motherhood by increasing the probability of school enrollment, which, in turn, reduces the probability of teen motherhood. This finding suggests that welfare offices may wish to place greater weight on outreach programs that inform more teenagers of the existence of strong child support enforcement measures. Such programs might reduce nonmarital teen motherhood further and thus reduce the need for welfare support and child support enforcement in the long run.
Lingxin HaoEmail:
  相似文献   
957.
This article uses privileged families who hire Independent Educational Consultants (IECs) as an instance to examine how privileged parents collaborate with individuals whom they consider educational experts to support their children in the college race. We argue that advantaged parents' anxieties about their children have created a market for IECs who provide expert advice in order to mitigate the uncertainties that these parents experience and to manage various goals that they want to achieve at an important turning point in their children's lives. Drawing primarily on interviews with parents who work with IECs, we introduce the concept of “collaborative cultivation” to analyze the processes whereby advantaged parents rely on the expertise and expert status of private counselors to cope with their and their children's vulnerability in the college race while at the same time preparing their children for the unknown future. The parental method of “concerted cultivation” reveals how elite parents rely on individuals they perceive as experts to establish “bridges” between their own social worlds and the academic worlds that appear to beyond their control. This bridging labor points to the myriad cultural beliefs enacted to justify the child‐rearing goals that privileged parents wish to accomplish by working with IECs.  相似文献   
958.
Understanding contemporary urban landscapes requires multiple sets of spatially and temporally compatible data that can integrate historical land use patterns and disturbances to land cover. This paper presents three principal methods: (1) core analysis; (2) historic mapping; and (3) gradient analysis, to link spatial and temporal data for urban ecosystems and applies their use in the Baltimore-Chesapeake region. Paleoecological evidence derived from the geochronology of sediment cores provides data on long-term as well as recent changes in vegetative land cover. This information, combined with contemporary vegetation maps, provides a baseline for conducting trend analyses to evaluate urbanization of the landscape. A 200-year historical land use database created from historical maps, census data, and remotely sensed data provides a spatial framework for investigating human impacts on the region. A geographic information system (GIS) integrates core analyses with historic data on land use change to yield a comprehensive land use and land cover framework and rates of change. These data resources establish the regional foundation for investigating the ecological components of an urban ecosystem. Urban-rural gradient analyses and patch analyses are proposed as the most appropriate methods for studying the urban ecosystem as they link ecological and social patterns and processes for varying degrees of urbanization.  相似文献   
959.
Lesbian, gay, bisexual, transgender and queer-identified (LGBTQ) youth are a population with a unique set of service needs. Existing research on effective service methods with LGBTQ youth is limited. Youth empowerment holds potential as an approach that can impact well-being among youth who face discrimination. The current study explores the relationship between the social justice youth development framework (Ginwright and James, New Directions Youth Dev 96:27–46, 2002) and youth empowerment in a sample of LGBTQ youth. Multiple regression analysis of data collected through a community-based youth program identified critical consciousness and community engagement as significant predictors of empowerment. Findings suggest that programs that promote these factors among LGBTQ youth using the social justice youth development framework may enhance empowerment thereby increasing other aspects of well-being.  相似文献   
960.
Two within household telephone sampling techniques for collecting citizen survey data for community mental health center's needs assessments were compared on the basis of respondent demographic characteristics; response, completion, and refusal rates; and, administrative costs. Initially, all households were chosen via random digit dialing. Then, one technique allowed the surveyor to interview any adult member of a household who answered the phone. The other technique used was developed by Troldahl and Carter and required the use of a reference table procedure to determine the appropriate respondent. While more expensive, the Troldahl-Carter method produced significantly better representativeness of the population for a rural county. Factors relating to a decision regarding which technique to employ are discussed.  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