全文获取类型
收费全文 | 2695篇 |
免费 | 780篇 |
专业分类
管理学 | 693篇 |
民族学 | 6篇 |
人口学 | 65篇 |
理论方法论 | 582篇 |
社会学 | 1823篇 |
统计学 | 306篇 |
出版年
2023年 | 2篇 |
2021年 | 68篇 |
2020年 | 137篇 |
2019年 | 302篇 |
2018年 | 124篇 |
2017年 | 207篇 |
2016年 | 258篇 |
2015年 | 261篇 |
2014年 | 237篇 |
2013年 | 374篇 |
2012年 | 192篇 |
2011年 | 182篇 |
2010年 | 159篇 |
2009年 | 118篇 |
2008年 | 156篇 |
2007年 | 98篇 |
2006年 | 117篇 |
2005年 | 86篇 |
2004年 | 89篇 |
2003年 | 76篇 |
2002年 | 53篇 |
2001年 | 60篇 |
2000年 | 51篇 |
1999年 | 10篇 |
1998年 | 2篇 |
1997年 | 3篇 |
1996年 | 7篇 |
1995年 | 1篇 |
1994年 | 6篇 |
1993年 | 9篇 |
1992年 | 2篇 |
1991年 | 6篇 |
1990年 | 2篇 |
1989年 | 7篇 |
1988年 | 6篇 |
1987年 | 3篇 |
1983年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1976年 | 1篇 |
排序方式: 共有3475条查询结果,搜索用时 375 毫秒
991.
Autocovariance Estimation in Regression with a Discontinuous Signal and m‐Dependent Errors: A Difference‐Based Approach
下载免费PDF全文
![点击此处可从《Scandinavian Journal of Statistics》网站下载免费的PDF全文](/ch/ext_images/free.gif)
We discuss a class of difference‐based estimators for the autocovariance in nonparametric regression when the signal is discontinuous and the errors form a stationary m‐dependent process. These estimators circumvent the particularly challenging task of pre‐estimating such an unknown regression function. We provide finite‐sample expressions of their mean squared errors for piecewise constant signals and Gaussian errors. Based on this, we derive biased‐optimized estimates that do not depend on the unknown autocovariance structure. Notably, for positively correlated errors, that part of the variance of our estimators that depend on the signal is minimal as well. Further, we provide sufficient conditions for ‐consistency; this result is extended to piecewise Hölder regression with non‐Gaussian errors. We combine our biased‐optimized autocovariance estimates with a projection‐based approach and derive covariance matrix estimates, a method that is of independent interest. An R package, several simulations and an application to biophysical measurements complement this paper. 相似文献
992.
How Leaders Affect Followers’ Work Engagement and Performance: Integrating Leader−Member Exchange and Crossover Theory
下载免费PDF全文
![点击此处可从《英国管理杂志》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Daniela Gutermann Nale Lehmann‐Willenbrock Diana Boer Marise Born Sven C. Voelpel 《英国管理杂志》2017,28(2):299-314
Drawing on leader?member exchange and crossover theory, this study examines how leaders’ work engagement can spread to followers, highlighting the role of leader?member exchange as an underlying explanatory process. Specifically, we investigate if leaders who are highly engaged in their work have better relationships with their followers, which in turn can explain elevated employee engagement. For this purpose, we surveyed 511 employees nested in 88 teams and their team leaders in a large service organization. Employees and supervisors provided data in this multi‐source design. Furthermore, we asked the employees to report their annual performance assessment. We tested our model using multilevel path analyses in Mplus. As hypothesized, leaders’ work engagement enhanced leader?member exchange quality, which in turn boosted employee engagement (mediation model). Moreover, employee engagement was positively linked to performance and negatively linked to turnover intentions. As such, our multilevel field study connects the dots between work engagement research and the leadership literature. We identify leaders’ work engagement as a key to positive leader?follower relationships and a means for promoting employee engagement and performance. Promoting work engagement at the managerial level may be a fruitful starting point for fostering an organizational culture of engagement. 相似文献
993.
Prabuddha De Lin Hao Yung‐Ming Li Yong Tan 《Production and Operations Management》2017,26(8):1427-1443
In this paper, we study quality‐of‐service (QoS) based pricing schemes that serve as incentive mechanisms to induce sharing behaviors in Peer‐to‐Peer (P2P) networks. We incorporate operational QoS metrics into users’ utility functions and demonstrate how they affect individual users’ content sharing decisions. Using a game‐theoretic model, our study reveals how organizations respond to the changes of operational QoS metrics in their design of pricing schemes for various business objectives at different stages of network evolution. Our results show that a higher upload capacity can foster rational sharing to start when the network is small; however, it also discourages sharing behaviors when the network becomes large. In order to induce a socially optimal behavior, a pricing scheme will not charge users for requesting content while compensating them for sharing content. Such compensation is found to increase faster with the network size when the network is large. In order to maximize the profit of a monopolistic provider, however, a pricing scheme will charge content requests with a positive price while providing less compensation to sharing users compared to the socially optimal scheme. When the network size is small, such compensation can be even negative, which implies that a monopolistic provider discourages content sharing when the network is small, but encourages it when the network becomes larger. In addition, we find that more information about peer upload capacity discourages peers to share. 相似文献
994.
Childhood adversity,adult homelessness and the intergenerational transmission of risk: a population‐representative study of individuals in households with children
下载免费PDF全文
![点击此处可从《Child & Family Social Work》网站下载免费的PDF全文](/ch/ext_images/free.gif)
J. J. Cutuli Ann Elizabeth Montgomery Michelle Evans‐Chase Dennis P. Culhane 《Child & Family Social Work》2017,22(1):116-125
This study tested for associations between childhood adversity, adult homelessness and contexts of developmental risk in households with children. Data were drawn from the 2010 Washington State Behavioral Risk Factor Surveillance System, representative of the population of Washington State residents. Considering adults in households with children, those who experienced higher levels of childhood adversity were more likely to have experienced homelessness in adulthood. Meanwhile, a 10‐factor index of cumulative developmental risk was independently associated with childhood adversity and with adult homelessness. Adult homelessness appears to represent a circumstance through which past childhood adversities are brought forward and associated with contexts of developmental risk for subsequent generations of children. 相似文献
995.
Sharing personal information in the child protection context: Impediments in the Australian legal framework
下载免费PDF全文
![点击此处可从《Child & Family Social Work》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Professionals, including social workers, in the child protection context are frequently required to make decisions on whether to share sensitive personal information about children, their families, and others with colleagues and across institutional and jurisdictional boundaries. Sharing information across agencies and organisations is essential to allow joined‐up service provision and to effectively protect and support children and their families. A legal framework that supports this decision making is a necessary, although not sufficient, condition for effective information sharing. This article examines the complex legal framework that governs information sharing across the Australian states and territories. It identifies a number of structural and regulatory elements that unnecessarily limit information sharing or have a tendency to create a culture that is risk averse, rather than proactive, in sharing information. The article suggests structural and regulatory reforms that would improve the legal framework for sharing information, while at the same time giving due recognition to the human rights that come into tension in this policy context: the right to privacy and the rights of the child. 相似文献
996.
Vishnu Parameshwaran Beatrice C. Cockbain Miriam Hillyard Jonathan R. Price 《Journal of homosexuality》2017,64(3):367-381
Lesbian, gay, bisexual, transgender and queer/questioning (LGBTQ) people frequently report negative health care encounters. Medical professionals may inadequately manage LGBTQ persons’ health if they have not received training in this area. An anonymous survey measuring efficacy in health situations among LGBTQ persons was answered by 166 medical students across all years of a UK university. Results show that 84.9% of participants reported a lack of LGBTQ health care education, with deficits in confidence clarifying unfamiliar sexual and gender terms, deciding the ward in which to nurse transgender patients, finding support resources, and discussing domestic abuse with LGBTQ patients. Most participants reported that they would not clarify gender pronouns or ask about gender or sexual identity in mental health or reproductive health settings. Participants reported infrequently observing doctors making similar inquiries. Participants held positive attitudes toward LGBTQ patients, with attitude scores positively correlating with LGBTQ terminology knowledge scores (rs = 0.5052, p < .01). Addressing gender identity and sexuality issues within medical curricula may remove barriers to accessing health care and improve encounters for LGBTQ patients. 相似文献
997.
Ofra Goldstein‐Gidoni 《Gender, Work and Organization》2020,27(3):362-378
Does the emergent phenomenon of ‘working fathers' herald a process of change in gender relations in Japan? Against the background of the current discourse in Japan about new modes of fathers' participation in the family, the article focuses on the small group of working fathers — men who explicitly organize their working lives around family responsibilities — to examine the potentiality of change. This supposed change in the roles of men (and women), at home and in the workplace, is considered in terms of latency, as a ‘slow‐dripping' process. The qualitative research focuses on Fathering Japan, Japan's leading fathering movement, its ideology, its members and their families. The article offers a critical perspective, juxtaposing gender ideology with practice. Exploring the real‐life experiences of working fathers caught between family and work, especially against Japan's gendered corporate culture, the article also addresses the persistence of gender inequality in Japan. 相似文献
998.
Students' school engagement is widely regarded as critical for positive school adjustment and overall academic success. Foster youth persistently face poorer educational outcomes than peers and demonstrate lower levels of school engagement and higher levels of academically threatening behaviors. The goals of the present study were (a) to explore relationships amongst various child‐level correlates of school engagement and problem behaviors—namely, self‐esteem and social skills—and (b) to respectively investigate the protective potential of self‐esteem and social skills in the association between school engagement and behavior problems that threaten educational trajectories. Results indicate significant associations between school engagement and problem behaviors, as well as between self‐esteem, social skills, and school engagement. Further, self‐esteem mediated the association between school engagement and both youth‐ and foster parent‐reported externalizing behavior, and social skills mediated the association between school engagement and both youth‐ and foster parent‐reported externalizing behavior. Implications for future practice, research, and policy are discussed. 相似文献
999.
Psychoeducation is an empirically based intervention that is increasingly delivered online to individuals and groups. Low participation has been a problem for online designs that include peer support. New technology designs have been called for, and in response, we developed a model that synchronized the delivery of individual and group‐based psychoeducational activities for parent management training. We used a problem‐based learning strategy delivered to caregivers of youth demonstrating oppositional behaviours to encourage the development of helping processes and peer support. This mixed methods intervention study had high rates of participant retention and positive measurable changes for two of its three psychoeducational outcome measures. When we merged the study data, we observed that mutual aid—a frequently sought goal of group‐based interventions—contributed to participant outcomes. 相似文献
1000.
In this article, we bridge the analytical gap between transnational anthropology and the anthropology of post‐socialism to explore the transnational family lives of Russian and Polish women in Finland. We point to three interrelated aspects of the post‐socialist legacy – (1) an inclusive understanding and practice of family that involves the interactions of immediate and extended family configurations; (2) intergenerational solidarity among women; and (3) feminine subjectivity built on the socialist ideal of a working mother. Our ethnographies illustrate that Russian and Polish women maintain their transnational families through networks of transnationally dispersed extended families. In women's lives and selves, traditional gendered motherhood and the liberal idea of a working woman are combined and supported by women's intergenerational companionship across borders. Our case studies show that such concrete, informal relations of affection and care provide women with a sense of security and self‐worth amid transnational change. 相似文献