全文获取类型
收费全文 | 363篇 |
免费 | 15篇 |
专业分类
各国政治 | 24篇 |
工人农民 | 57篇 |
世界政治 | 28篇 |
外交国际关系 | 14篇 |
法律 | 156篇 |
中国政治 | 8篇 |
政治理论 | 90篇 |
综合类 | 1篇 |
出版年
2023年 | 3篇 |
2022年 | 2篇 |
2021年 | 3篇 |
2020年 | 6篇 |
2019年 | 7篇 |
2018年 | 15篇 |
2017年 | 19篇 |
2016年 | 15篇 |
2015年 | 12篇 |
2014年 | 10篇 |
2013年 | 49篇 |
2012年 | 9篇 |
2011年 | 11篇 |
2010年 | 11篇 |
2009年 | 8篇 |
2008年 | 9篇 |
2007年 | 19篇 |
2006年 | 17篇 |
2005年 | 7篇 |
2004年 | 6篇 |
2003年 | 11篇 |
2002年 | 16篇 |
2001年 | 7篇 |
2000年 | 6篇 |
1999年 | 5篇 |
1998年 | 8篇 |
1997年 | 3篇 |
1996年 | 6篇 |
1995年 | 9篇 |
1994年 | 4篇 |
1993年 | 3篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1989年 | 7篇 |
1988年 | 5篇 |
1987年 | 2篇 |
1985年 | 2篇 |
1984年 | 2篇 |
1983年 | 3篇 |
1982年 | 5篇 |
1981年 | 6篇 |
1980年 | 2篇 |
1978年 | 2篇 |
1977年 | 3篇 |
1975年 | 2篇 |
1974年 | 4篇 |
1972年 | 1篇 |
1970年 | 1篇 |
1968年 | 1篇 |
1965年 | 1篇 |
排序方式: 共有378条查询结果,搜索用时 15 毫秒
371.
372.
373.
Laurence D. Steinberg Ellen Greenberger Maryann Jacobi Laurie Garduque 《Journal of youth and adolescence》1981,10(2):141-157
One of the most important lessons a young person may learn from working is how to interact effectively with others. This potential outcome of work experience has received virtually no attention from proponents of the early integration of adolescents into the workplace. In this paper we suggest that working may contribute to the development of more advanced social understanding (i.e., social sensitivity, social insight, and effective social communication and manipulation) by requiring youngsters to (a) shift back and forth between diverse roles and (b) interact frequently with strangers. Illustrative material is presented from interviews with 100 working adolescents and their parents.This study is part of a large-scale investigation of the costs and benefits of part-time employment during the high school years. The first two authors are Co-Principal Investigators of the Spencer Foundation grant and share primary and equal responsibility for this report.Received Ph.D. in human development and family studies from Cornell University. Main research interests are adolescent development, life-span development, and social policy.Received Ph.D. in clinical psychology from Harvard University. Main research interests are adolescence and social institutions, life-span development, and social policy.Main research interests are environmental and community psychology.Main research interests are human development and social policy. 相似文献
374.
Next‐Generation Sequencing of the Bacterial 16S rRNA Gene for Forensic Soil Comparison: A Feasibility Study 下载免费PDF全文
Ellen M. Jesmok M.S. James M. Hopkins M.S. David R. Foran Ph.D. 《Journal of forensic sciences》2016,61(3):607-617
Soil has the potential to be valuable forensic evidence linking a person or item to a crime scene; however, there is no established soil individualization technique. In this study, the utility of soil bacterial profiling via next‐generation sequencing of the 16S rRNA gene was examined for associating soils with their place of origin. Soil samples were collected from ten diverse and nine similar habitats over time, and within three habitats at various horizontal and vertical distances. Bacterial profiles were analyzed using four methods: abundance charts and nonmetric multidimensional scaling provided simplification and visualization of the massive datasets, potentially aiding in expert testimony, while analysis of similarities and k‐nearest neighbor offered objective statistical comparisons. The vast majority of soil bacterial profiles (95.4%) were classified to their location of origin, highlighting the potential of bacterial profiling via next‐generation sequencing for the forensic analysis of soil samples. 相似文献
375.
During the past decade, housing markets across the United States experienced dramatic upheaval. Housing prices rose rapidly throughout much of the country from 2000 until the start of 2007 and then fell sharply during the next 2 years. Many households lost substantial amounts of equity during this downturn; in aggregate, U.S. homeowners lost $7 trillion in equity from 2006 to 2009. Aggregate home equity holdings had fallen back to 2000 levels by early 2009. Whereas this intense volatility has been well documented, there remain unanswered questions about the variation in experiences across racial groups, particularly among those who purchased their homes before the boom and kept them through the collapse of the market. Did this housing market upheaval widen the already large racial and ethnic gaps in housing wealth? Using the American Housing Survey, we analyze differences in the changes in home equity experienced by homeowners of different races and ethnicities between 2003 and 2009. We focus on homeowners who remained in their homes over this period, and find that blacks and Hispanics gained less home equity than whites and were more likely to end the period underwater. Black–white gaps were driven in part by racial disparities in income and education and differences in types of homes purchased. Latino–white disparities were most dramatic during the market’s bust. 相似文献
376.
Ellen Van Damme 《Trends in Organized Crime》2018,21(4):343-369
The phenomenon of gangs in El Salvador and the Democratic Republic of Congo (DRC) has already been researched, but a comparative study of gangs and gang policies is lacking. In this paper we discuss several gang violence prevention initiatives regarding the Mara Salvatrucha and Barrio 18 in El Salvador, and the kuluna and bashege in Kinshasa, DRC. In order to analyze the different gang interventions, we implement the typology of first and second gang violence prevention initiatives (Rodgers et al. 2009), and propose the evolution towards a third generation of gang violence prevention interventions. While first generation initiatives are security and law-enforcement driven, and second generation initiatives socio-preventive driven, third generation initiatives are more politically driven. The latter indicates a shift towards a vision of dialogue and negotiations to deal with gang violence. However, the different generations are not predefined within time and third generation initiatives can also be followed up by first generation initiatives, which was for example the case in the gang truce in El Salvador. Also, comparative gang research includes challenges, especially when the gang phenomenon in one country is better researched and documented than in other countries. As such, we were unable to identify politically-driven initiatives in the DRC to compare with the ones in El Salvador. Further research is thus required. With this paper we not only aim to contribute to the literature on gang violence prevention and reduction initiatives, we also want to push researchers, practitioners and policymakers to look beyond the borders when setting up gang (violence) prevention and rehabilitation projects, and to learn from other regions where similar initiatives have been implemented to deal with comparable issues of gang violence. 相似文献
377.
A range of studies have examined what should be said and done in crisis negotiations. Yet, no study to date has considered what happens when an error is made, how to respond to an error, and what the consequences of errors and responses might be on the negotiation process itself. To develop our understanding of errors, we conducted 11 semi-structured interviews with police crisis negotiators in the Netherlands. Negotiators reported making errors of three types: factual, judgment, or contextual. They also reported making use of four types of response strategy: accept, apologize, attribute, and contradict. Critically, the negotiators did not perceive errors as solely detrimental, but as an opportunity for feedback. They advocated for an error management approach, which focused on what could be learned from another person’s errors when looking back at them. Suggestions for improvement of the communication error management experience in crisis negotiations are discussed. 相似文献
378.
Leslie Ellen Shear 《Family Court Review》2023,61(3):510-521
Navigating the family court setting to protect teen mental health, meet teens' mental health needs, and promote resilience and coping skills is challenging. We have tools that can help us meet that challenge. That toolkit includes: expanding who is involved in the work to develop a parenting plan or treatment plan; not reducing the case to a one-dimensional fact pattern; restructuring family court proceedings for ongoing problem-solving, providing protections for the teen's privacy; using consensual dispute resolution and adjudication on parallel tracks; and educating the decision makers through expert declarations and Brandeis briefs (even at the trial court level). 相似文献