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   254篇
  免费   9篇
管理学   59篇
民族学   7篇
人口学   25篇
丛书文集   1篇
理论方法论   9篇
综合类   2篇
社会学   108篇
统计学   52篇
  2023年   3篇
  2022年   2篇
  2021年   4篇
  2020年   10篇
  2019年   13篇
  2018年   18篇
  2017年   14篇
  2016年   15篇
  2015年   5篇
  2014年   13篇
  2013年   44篇
  2012年   25篇
  2011年   9篇
  2010年   9篇
  2009年   6篇
  2008年   12篇
  2007年   8篇
  2006年   2篇
  2005年   6篇
  2004年   3篇
  2003年   4篇
  2002年   4篇
  2001年   5篇
  2000年   2篇
  1999年   2篇
  1998年   2篇
  1997年   5篇
  1995年   2篇
  1994年   1篇
  1993年   3篇
  1992年   3篇
  1989年   2篇
  1988年   2篇
  1987年   2篇
  1986年   1篇
  1983年   1篇
  1974年   1篇
排序方式: 共有263条查询结果,搜索用时 31 毫秒
81.
Since ERASMUS (European Region Action Scheme for the Mobility of University Students) was launched there has been a constant debate about the civic significance of this mobility programme. The purpose of this article is to analyse the understanding of active citizenship by Erasmus students. In order to discover Erasmus students’ perceptions, values, beliefs and attitudes regarding the issue under discussion, original data were collected from 174 students who participated in our survey in March 2014. By applying a statistical analysis, the most and the least important criteria for being considered an active citizen have been extracted from the answers of our respondents. In addition, we studied their attitudes towards and knowledge of the European Union (EU). We found that their understanding of ‘active citizenship’ echoes with the definition of the concept provided in the research literature.  相似文献   
82.
In the United States, 5.3 million children and adolescents are growing up either with unauthorized status or with at least one parent who has that status. Until recently, little in the way of research has informed federal, state, and local policy debates related to unauthorized status (e.g., border enforcement, deportation, and a pathway to citizenship) although these issues have important implications for youth development. This statement is a brief summary of the research evidence on multiple domains of development that may be affected by the child or parent's unauthorized status. We also describe the contextual and psychological mechanisms that may link this status to developmental outcomes. We summarize a range of policies and practices that could reduce the developmental harm to children, youth, and their families stemming from this status. Finally, we conclude with recommendations for policy, practice, and research that are based on the evidence reviewed.  相似文献   
83.
This paper examines two potentially contradictory effects of the presence of controlling shareholders. Controlling shareholders have been shown to be beneficial, as they generally have a long-term interest in the firm and are willing and able to monitor the actions of senior managers closely and decrease agency costs between shareholders and management (agency costs of Type I). However, they are also in a position to expropriate the firm’s assets, especially when they are actively involved in management (agency costs of Type II). More specifically, this article reviews how regulatory and legislative bodies have tried to curb the consumption of private benefits by controlling shareholders while preserving the beneficial aspects of their long-term interest and their monitoring role, the effect controlling shareholders on the application and effectiveness of corporate governance best practices as well as on the executive and board member remuneration.  相似文献   
84.
The International Council for Harmonization (ICH) E9(R1) addendum recommends choosing an appropriate estimand based on the study objectives in advance of trial design. One defining attribute of an estimand is the intercurrent event, specifically what is considered an intercurrent event and how it should be handled. The primary objective of a clinical study is usually to assess a product's effectiveness and safety based on the planned treatment regimen instead of the actual treatment received. The estimand using the treatment policy strategy, which collects and analyzes data regardless of the occurrence of intercurrent events, is usually utilized. In this article, we explain how missing data can be handled using the treatment policy strategy from the authors' viewpoint in connection with antihyperglycemic product development programs. The article discusses five statistical methods to impute missing data occurring after intercurrent events. All five methods are applied within the framework of the treatment policy strategy. The article compares the five methods via Markov Chain Monte Carlo simulations and showcases how three of these five methods have been applied to estimate the treatment effects published in the labels for three antihyperglycemic agents currently on the market.  相似文献   
85.
This study examines the relationship between attachment to parents and peers, time perspective and psychological adjustment in adolescence. 2,665 adolescents (M age = 17.03 years, SD = 1.48) completed self-report measures about parent and peer attachment, time perspective, sympathy and self-determination. Subjects were divided into four groups based on their parent and peer attachment scores: high parent and high peer attachment, low peer and low parent, high parent and low peer, low parent and high peer. Higher levels of negative past of the Zimbardo Time Perspective Inventory were revealed, by post hoc analyses, in the group with low attachment to parent and peer. Unlike adolescents with low attachment to parents, adolescents who reported a secure attachment to parents had higher scores on positive past, hedonistic present, and future. Adolescents with high attachment to parent and peer and adolescents with high parent but low peer attachment had the highest scores on competence and authonomy.  相似文献   
86.
We propose a new principle of ‘non-interference’ applied to social welfare orderings. The principle, together with two other standard requirements, implies a strong egalitarian conclusion: the ordering must lexicographically maximize the welfare of the worst off. The first version of this paper was written when Mariotti was visiting Bocconi University. Their generous hospitality and financial support through a Research Fellowship is gratefully acknowledged. A previous version of this paper written by Mariotti alone was circulated with the title ‘Liberalism implies equality’. We thank Ken Binmore, Paola Manzini, Juan Moreno Ternero and two referees for helpful comments. The responsibility for any error is our own.  相似文献   
87.
A growing literature has examined the prevalence of transnational engagement among children of immigrants. However, few studies have been equipped to analyse underlying dynamics that serve to impede or perpetuate transnational practices among them in the United States. In this article, we compare transnationalism narratives between 1.5- and second-generation children of immigrants to more fully adjudicate enduring transnational ties over time. Our analysis of 134 interviews from the Children of Immigrants Longitudinal Study suggests that children of immigrants from Southern California conceptualise transnational experiences in diverse but remarkably similar ways. The meanings attached to transnational behaviours and identities employ certain patterns, and are often related to strength of kin-based ties, ethnic language fluency, and levels of structural access to the homeland. Moreover, findings indicate that the second-generation is nearly as transnationally engaged as the 1.5-generation. This provides novel but limited evidence in support of claims that transnational ties are sustained across generations.  相似文献   
88.
Older women often experience pain in their daily lives. This article provides an overview of topics addressed in the geriatric pain research published between 1999 and 2004. New areas of emphasis of research have emerged such as the recognition of body mass and weight as a factor in persistent pain, while other areas have expanded, including the focus on pain among elders with cognitive impairments and the use of alternative treatment approaches. Understanding of pain in late life is hindered by study samples that lack diversity, treatment approaches that are narrowly focused, and a lack of attention to quality of life issues.  相似文献   
89.
Abstract

This study develops and empirically tests, from the resource-based perspective, a conceptual framework linking green supply management and performance. The proposed model is tested using data from a sample of 126 automotive manufactures in China. The results suggest that both green purchasing personnel and green supplier selection have a significant positive effect on green supplier collaboration, and that building green collaboration with suppliers is significantly and positively related to both environmental and operational performance. Accordingly, knowledge and skill development of the purchasing function can be recognised as an important resource in building green supply capabilities and performance.  相似文献   
90.
The high availability and accessibility of online gambling have recently caused public concern regarding the potential increase of gambling-related problems among young people. Nonetheless, few studies among adults and none among adolescents have explored specific characteristics of gamblers as a function of gambling venues to date. This study sought to analyze the prevalence of gambling among a sample of adolescents in the last year, as well as sociodemographic and gambling-related characteristics as possible predictors of at-risk and problem gambling. The sample comprised 1313 adolescents aged 14–18 years. Participants were asked to respond to several questions regarding their gambling behavior. Chi square and ANOVA tests were performed in order to explore differences between groups, and a set of multinomial regressions established significant severity predictors. The prevalence of at-risk and problem gambling was 4 and 1.2 %, respectively. Regression analyses showed that having a relative with gambling problems predicted at-risk gambling. Both living with only one parent or not living with parents at all, and the prevalence of Electronic Gambling Machines in the last year were associated with problem gambling. Mixed-mode gambling was a predictor of both at-risk and problem gambling. Our findings extend previous research on gambling among adolescents by exploring gambling behavior according to different modes of access. Although the prevalence of exclusive online gambling among the total sample was low, these results support the need to consider specific subgroups of gamblers and their concrete related features when conducting both indicated prevention and treatment protocols for adolescents.  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