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   17544篇
  免费   832篇
  国内免费   204篇
管理学   236篇
劳动科学   1篇
民族学   508篇
人才学   4篇
人口学   172篇
丛书文集   2689篇
理论方法论   896篇
综合类   12983篇
社会学   975篇
统计学   116篇
  2024年   12篇
  2023年   136篇
  2022年   201篇
  2021年   217篇
  2020年   223篇
  2019年   171篇
  2018年   184篇
  2017年   184篇
  2016年   198篇
  2015年   366篇
  2014年   984篇
  2013年   1057篇
  2012年   1180篇
  2011年   1496篇
  2010年   1098篇
  2009年   1238篇
  2008年   1258篇
  2007年   1367篇
  2006年   1280篇
  2005年   1145篇
  2004年   1105篇
  2003年   1052篇
  2002年   905篇
  2001年   748篇
  2000年   431篇
  1999年   104篇
  1998年   51篇
  1997年   48篇
  1996年   35篇
  1995年   15篇
  1994年   17篇
  1993年   24篇
  1992年   8篇
  1991年   7篇
  1989年   3篇
  1988年   3篇
  1985年   4篇
  1984年   2篇
  1983年   5篇
  1982年   3篇
  1981年   3篇
  1980年   3篇
  1979年   5篇
  1978年   4篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
1.
《Long Range Planning》2022,55(1):102069
Based on a longitudinal case study of China's high-speed rail embedded in the emerging economy context, we focus on what role the government plays and how that matters to open innovation (OI) for competitive advantage. By linking the OI literature with the national political institutions literature to motivate our research question, we propose a statist-based OI view to differentiate diverse government roles, investigating how government adopts roles in a combined way to push OI in stages. Our findings suggest that government is an important strategic decision-maker for OI. Specifically, the government plays various roles as commander, protector, cultivator, and intermediator, reflecting state activism derived from national political institutions, to construct institutional-level OI for domestic OI activities, and inbound and outbound OI across national borders. We find government can deliberately and strategically use its diverse roles in a combined way to push OI for competitive advantage through the industrial evolutionary process over time. Our study contributes to the OI literature and integrates the strategic management literature with the study of OI to provide new insights to explain the origins of competitive advantage from the state perspective.  相似文献   
2.
Water is the source of all life, and is closely related to human civilization. It had a special significance in China, so the ancient Chinese created the dragon god as a symbol of China, the Chinese and Chinese civilization. It can be said that the unique hydrological conditions on the territory of China created three great historical miracles: China, the Chinese people, and Chinese civilization. The Chinese have dedicated more effort than people in any other countries to water control and water use in order to make effective use of water resources and prevent flooding. It is their unparalleled achievements that have laid the foundation for these three miracles. Today, the Chinese people are facing unprecedented challenges in water control and water use. Exploring the historical Chinese relationship with water offers a good opportunity to understand the important role that water plays in long-term social development.  相似文献   
3.
ABSTRACT

Collective Impact (CI) is a framework for collaborative social change that has gained considerable attention over the past seven years. In this article we review the peer-reviewed academic research on the CI framework to understand what is known about its use. Nineteen articles were located. We identified four themes in the research: A need to adapt CI to the specific context, its technical nature, the importance of relationships, and concerns about power and equity. The literature on the CI framework is in its infancy and as such tends to focus on capacity building or model development. Whilst CI promotes important discussion about collaboration and social change, issues of power, equity and grass-roots engagement require further attention.

IMPLICATIONS
  • Peer reviewed academic research on the application of CI is at an early stage and further research is needed.

  • Social workers should carefully consider critiques of CI before adopting this framework for social change.

  相似文献   
4.
This study aims to systematically analyze and compare studies applying the dialogue approach in public relations to information communication technologies (ICTs) under English and Chinese context. Specifically, we want to investigate the subjects, the adoption of dialogic principles, and the processing of additional valuables of dialogue in selected studies. By identifying 68 relevant peer-reviewed journal articles under English context and 13 under Chinese context, we analyzed different subjects in selected publications, including their research topics, methods, samples and objectives. Moreover, our study also revealed the following results: (1) three dialogic principles were well adopted while the other two were not; (2) public engagement was the most common effect; (3) organizational response was the most common antecedent to dialogue implementation. Future studies are recommended to diversify research methods, topics and relevant technologies. We also call for developing theoretical models for dialogue in public relations and updating dialogic principles and measurements. Based upon the fact that the dialogue approach is less studied under Chinese context, we also offer a path to construct effective and ethical communication between organizations and publics on various ICT-based platforms in Greater China.  相似文献   
5.
Abstract

Objective: This study examines the prevalence and risk factors associated with risky sexual behaviors in community college students. Participants: A diverse sample of 18–19-year-old community college students (N?=?264). Methods: Baseline data from an online prevention program administered in 2015. Results: Community college students in this sample disproportionately experienced sexual assault and were unlikely to test for STIs. Higher intentions to engage in risky sexual behaviors were associated with gender and sexual experience, but also with having lower intentions to communicate with a sexual partner about pregnancy and STIs, and having higher gender norm endorsement. Conclusions: Older adolescents attending community colleges may be at high risk for poor sexual health outcomes, and appropriate theory-based education should be tailored to meet the needs of these underserved students.  相似文献   
6.

Background

The rates of breastfeeding worldwide are slowly improving since 1996. Europe is still trailing behind the global breastfeeding incidence and prevalence rates. Thus, breastfeeding promotion, protection, prolongation and support have become an important challenge as breastfeeding sharply decreases in the first six months of life.

Objectives

The aim of this project is to determine, assess and identify the real impact of breastfeeding support networks in Murcia (Spain).

Methods

After searching unsuccessfully for a validated questionnaire, a specific one was developed and validated for measuring the impact of formal and informal support networks through five dimensions: satisfaction, consultation, experience, problems and support. The questionnaire was provided to 500 mothers with experience in breastfeeding, who brought their children to baby paediatricians between 2 June and 27 November 2014. Upon completion of the survey and fieldwork, a detailed statistical analysis was conducted.

Results

The degree of satisfaction perceived by the users of the services of support breastfeeding networks is remarkable. In addition, mothers who clarified their doubts and discussed their problems with health professionals and/or breastfeeding support networks were more likely to breastfeed for a longer duration compared to those who did not (p = 0.005). Furthermore, mothers who sought support in breastfeeding are more likely to breastfeed for more than 6 months (p < 0.0005).

Conclusion

Based on this information, we conclude that breastfeeding support networks have a positive influence in the duration of a women’s decision to breastfeed.  相似文献   
7.
This article describes a community-based participatory action research (CBPAR) project that examined the postmigration living difficulties (PMLD), help-seeking and community resilience of recent Irish migrants to London (n = 176). The majority of respondents were young adults, in managerial or professional occupations and in good or very good health. Mixed methods indicate inadequate planning for relocation and poor social support as the main difficulties in the initial stages of migration. Community factors promoting resilience included employment opportunities, local and transnational supports, and cultural familiarity and acceptance. Community participation in the action orientated phase of this CBPAR is discussed.  相似文献   
8.
This paper examines the experiences of belonging of young Chinese internet users through an analysis of their online identity practices. Drawing on a qualitative research project about online citizenship practices of 31 young Chinese citizens from mainland China, I explore their experiences of belonging on two online platforms (Weibo and WeChat) and the identities formed and sustained through these experiences. The results show that young people experience different senses of belonging in different social media spaces. Their strategies in navigating these experiences are informed by (a) their perceptions of online spaces as private or public, and (b) using online identity performance as a supplement to or escape from identities in physical life. I argue that young Chinese internet users experience different senses of belonging by flexibly appropriating the affordances of social media platforms for communication and networking; these senses of belonging play a key role in forming and sustaining their identities, and are crucial for their wellbeing.  相似文献   
9.
As part of a broader program of market reform, China's local governments are progressing an agenda of purchasing child welfare and other social services from the nongovernment sector, primarily to expand capacity and address vast unmet need. This paper draws on current research evidence to explore the approaches to purchasing emerging in China, examining the rationale for purchasing and models of supply, competition, and regulation. While some approaches are modeled on direct service contracting, direct purchasing of social service “posts” is also used, aimed at achieving goals of professionalization alongside service expansion. Overall, the review shows purchasing is helping to rapidly expand service scale and capacity; however, regulatory strategies for managing and mitigating risks to quality and access appear lacking. This highlights the need for further scholarship aimed at developing the robust risk management strategies which are required to support high quality, sustainable provision of purchased services.  相似文献   
10.
Studies have mostly examined mental health service use of older Asian immigrant combining all Asian Americans into one group whereas immigration backgrounds and socioeconomic status of each Asian minority group are different. Therefore, this study aimed to identify predictors of mental health service use within specific ethnic groups among older Asian adults focusing on Chinese, Japanese, Korean, Filipino, and Vietnamese in California. The Behavioral Model for Vulnerable Populations (BMVP) is used to guide the secondary data analysis of a sample of 3,453 older Asian immigrants from the California Health Interview Survey (CHIS). Logistic and linear regression analyses are performed to examine predictors of mental health service use and the frequency of mental health service use, respectively. As results, mental health‐seeking patterns differ by ethnicity within the older Asian immigrant sample, not being married (Korean), higher levels of acculturation (Filipino), lower levels of neighborhood cohesion (Korean and Vietnamese), higher levels of perceived safety (Korean) and lower levels of perceived safety (Vietnamese), higher levels of mental distress (Korean and Filipino), and having perceived need (all) were related to more visits for mental health services. The study findings highlight the necessity of cultural competency services and programs for each Asian ethnicity.  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