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   594篇
  免费   21篇
各国政治   37篇
工人农民   73篇
世界政治   57篇
外交国际关系   24篇
法律   306篇
中国政治   8篇
政治理论   108篇
综合类   2篇
  2023年   5篇
  2022年   5篇
  2021年   10篇
  2020年   10篇
  2019年   25篇
  2018年   27篇
  2017年   21篇
  2016年   23篇
  2015年   17篇
  2014年   25篇
  2013年   91篇
  2012年   22篇
  2011年   17篇
  2010年   19篇
  2009年   27篇
  2008年   26篇
  2007年   21篇
  2006年   14篇
  2005年   17篇
  2004年   16篇
  2003年   20篇
  2002年   21篇
  2001年   7篇
  2000年   14篇
  1999年   5篇
  1998年   5篇
  1997年   16篇
  1996年   6篇
  1995年   7篇
  1993年   4篇
  1992年   6篇
  1991年   3篇
  1990年   7篇
  1989年   5篇
  1988年   3篇
  1987年   6篇
  1986年   2篇
  1985年   10篇
  1984年   3篇
  1983年   6篇
  1982年   4篇
  1981年   2篇
  1980年   4篇
  1979年   2篇
  1978年   1篇
  1977年   2篇
  1975年   1篇
  1974年   1篇
  1973年   1篇
  1968年   1篇
排序方式: 共有615条查询结果,搜索用时 15 毫秒
81.
Early sexual behaviors during adolescence have the potential to lead to unhealthy outcomes. This study explored the association between specific dimensions of maternal relationship quality and adolescent sexual debut by age 15. We hypothesized that adolescents who have poor maternal relationships are at greater risk of early sexual debut than those who have a more supportive relationship. These hypotheses were examined using both adolescents’ perception of their maternal relationship quality and observed relationship quality. A sample of 268 adolescents (142 girls; 90% European American) were followed longitudinally from age 13 to age 15. The results indicate that adolescents with sexual debut by age 15 report significantly worse relationships with their mothers compared with other adolescents. Furthermore, behavioral observations of lower maternal support and higher observed displays of externalizing affect towards the mother also were related to early sexual debut. The significance of maternal relationship quality remained after controlling for family structure, race, and socioeconomic status. These findings suggest that mothers have a significant role in the timing of their adolescents’ sexual debut.  相似文献   
82.
Three spectrometric methods, that is, spectrofluorimetry (SF), atomic absorption spectrometry with electrothermal atomization (ET-AAS), and atomic fluorescence spectrometry with hydride generation (HG-AFS) were used for the determination of total selenium in biological samples taken from postmortem material in a case of acute selenium compound poisoning. The precision of the SF, ET-AAS, and HG-AFS methods (RSD, n=10) was found to be in the ranges of 10.0-15.0, 3.0-6.0 and 1.0-1.5%, respectively, and the detection limit was 10.0, 4.0, and 0.1 μg/L of Se, respectively. In the case of HG-AFS, the analytical procedure takes less time and is less laborious than the other methods considered. The obtained results show the usefulness of the HG-AFS method as a supplementary analytical tool to the SF and ET-AAS methods with respect to the determination of selenium as well as the possibility of using this method as a primary one in forensic toxicology practice.  相似文献   
83.
84.
The Safe Start demonstration projects, funded by the Office of Juvenile Justice and Delinquency Prevention (OJJDP) under the first phase of the Safe Start initiative, are primarily designed to influence change at the systems or macrolevels to reduce the incidence of and impact of exposure to violence for children aged birth to 6 years; direct services are also provided to young children and their families who were exposed to violence. The data presented in this article come from 10 communities that submitted data regarding the characteristics of young children exposed to violence to OJJDP. These data represent families who are typically not represented in the databases of state child protective services programs but instead have been identified by domestic violence advocates, early care and education providers, family members, court personnel, police, and other social service personnel as families with young children in need of intervention due to violence exposure.The purpose of this article is to describe the characteristics of young children and their parents who seek help for psychosocial problems related to exposure to family and community violence. Results indicate that one quarter of the children and nearly half of their parents evidenced clinical levels of stress, suggesting the need to intervene at the family level as well as at the individual level when working with young children exposed to violence. The information presented, including the extent of exposure to violence, the multiple types of violence to which children are exposed, the impact of this exposure on young children and their families, and the multiple ways in which families exposed to violence come to the attention of service providers is useful for policy makers and service providers who are interested in breaking the cycle of violence by meeting the needs of the children exposed to violence and their families.  相似文献   
85.
We investigated agency directors' perspectives about how service goals should be prioritized for domestic violence and sexual assault service subtypes, including crisis, legal advocacy, medical advocacy, counseling, support group, and shelter services. A sample of 97 (94% response rate) North Carolina domestic violence and/or sexual assault agency directors completed a survey asking participants to rank the importance of service goals. Overall, participants considered emotional support provision to be a critical service goal priority across all service types. Social support and self-care service strategies were deemed less important. However, prioritization of other service goals varied depending on the service type. Statistically significant differences on service goal prioritization based on key agency characteristics were also examined, and agency characteristics were found to relate to differences in service goal prioritization.  相似文献   
86.
Most studies that relate coping strategies with psychological symptoms usually consider a single coping dimension. This means that interpretation of the results is unclear and only partially true as subjects activate different types of coping strategies simultaneously when faced with a stressor. The objective of the present study is to analyze the relationships between coping and psychopathology in young inmates, taking into account the number of approach and avoidance answers simultaneously. The results show that the inmates with above-average scores in avoidance coping and below average in those of approach (coping responses inventory--adult form, [CRI-A]) show higher symptomatology (MMPI-2) than the inmates who obtain above-average scores in both avoidance and approach strategies. It can be deduced that it is not the high use of avoidance coping that is related to psychopathology, but rather the combined use of many avoidance strategies and few approach strategies. The convenience of jointly taking into account both types of coping is discussed.  相似文献   
87.
This paper describes the multidisciplinary project Founders and Survivors: Australian Life Courses in Historical Context. Individual life courses, families and generations through the nineteenth and twentieth centuries are being reconstituted from a wide range of data including convict records; birth, death and marriage registrations; and World War I service records. The project will result in a longitudinal study of Australian settlement, the long-run effects of forced labour and emigration on health and survival, family formation, intergenerational morbidity and mortality, and social and geographic mobility.  相似文献   
88.
This article draws on the insights offered by Francesca Polletta, Calvin Morrill, and Elizabeth Chiarello in their comments on my book, Caring for Our Own: Why There Is No Political Demand for New American Social Welfare Rights ( 2014 ) to further specify the conditions that unleash the emancipatory potential of law. I argue that much of law's emancipatory power lies in its capacity to “construct anew”—to demonstrate new solutions to social problems by connecting the familiar with the strange. Drawing on the case of child care, I find that laws do not automatically provide the cultural resources to construct new claims for state intervention, but that existing laws—and the symbols, narratives, and norms that we associate with them—serve as grist for the political imagination and can be transposed to new contexts or institutions. In the absence of cultural resources in one institution (such as work), advocates can use legal discourse to strategically shift responsibility for a social problem to a new institution (such as education), opening up possibilities for new models, organizational actors, constituencies, and frames.  相似文献   
89.
There is limited research on the gendered impacts of drug policies in Canada, despite the fact that women, Indigenous women in particular, are the country’s fastest growing prisoner population, with many incarcerated for drug-related crimes. This article highlights the results of a larger qualitative study with former prisoners in Ontario and community and medical experts from across the country. Focusing on the women research participants, we consider the lack of adequate and culturally-relevant substance use and harm reduction programming in federal prisons, and suggest a reformulation of Canada’s punitive drug policies toward a health and social welfare approach.  相似文献   
90.
The aim of this article is to analyze comparatively how academics, physicians, and nurses positioned themselves in relation to the reconfiguration of power structures and decisional processes, under New Public Management influence, in the hospitals, and higher education institutions. The empirical data are gathered from a survey applied to the three professional groups. Quantitative results show that the three groups have similar positions concerning power concentration at institutions’ top governance. However, relevant differences emerge in their views concerning the organization and control of the social division of work and also of their professional practices.  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