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   812篇
  免费   44篇
各国政治   48篇
工人农民   63篇
世界政治   65篇
外交国际关系   52篇
法律   386篇
中国共产党   1篇
中国政治   10篇
政治理论   229篇
综合类   2篇
  2023年   11篇
  2021年   10篇
  2020年   29篇
  2019年   27篇
  2018年   35篇
  2017年   42篇
  2016年   39篇
  2015年   23篇
  2014年   25篇
  2013年   113篇
  2012年   20篇
  2011年   19篇
  2010年   17篇
  2009年   26篇
  2008年   19篇
  2007年   33篇
  2006年   21篇
  2005年   15篇
  2004年   23篇
  2003年   14篇
  2002年   19篇
  2001年   25篇
  2000年   15篇
  1999年   12篇
  1998年   11篇
  1997年   11篇
  1996年   9篇
  1995年   11篇
  1994年   10篇
  1993年   9篇
  1992年   12篇
  1991年   8篇
  1990年   8篇
  1989年   11篇
  1988年   9篇
  1987年   9篇
  1986年   12篇
  1985年   10篇
  1984年   5篇
  1983年   6篇
  1982年   7篇
  1981年   7篇
  1980年   12篇
  1979年   6篇
  1978年   7篇
  1977年   4篇
  1976年   3篇
  1974年   6篇
  1973年   4篇
  1968年   4篇
排序方式: 共有856条查询结果,搜索用时 0 毫秒
131.
A review of the literature was conducted to assess the extent and nature of the practice of requiring parents to transfer custody in order to receive public funding for intensive services needed by their child/adolescent who had a serious emotional disorder. The review focused on the legal and policy basis of this practice as well as its social and psychological impact on child and family. We conclude that the practice of transfer of custody as a requirement for receiving financial aid occurs in a majority of states, though the actual extent of this practice is not known. The major factor influencing the use of transfer of custody appears to be the absence of an appropriate and adequate system of services for children and adolescents with serious emotional disorders. We recommend that the practice of requiring custody transfer for the sole purpose of receiving services be abolished and offer several suggestions for improving acess to services.Preparation of this article was supported in part by the National Institute of Mental Health (NIMH) under contract no. 89MF761903. The authors are grateful to John Burke and Kelly Kelleher of the Division of Biometry and Applied Sciences, NIMH for their assistance on this project. Laurie Flynn, Executive Director for the National Alliance for the Mentally Ill, was very helpful during the informative stage of the project. Barbara Friesen, Director of the Research and Training Center at Portland State University, gave us useful guidance throughout the project. We thank Stephen Hill, Consultant to the National Governors' Association, for his help. We are grateful to Amy Hewitt and Carol Ishler for their assistance in preparing this report. We also would like to acknowledge several individuals who assisted us with research reported in this article. We are grateful to Governor Richard F. Celeste of Ohio for his letter of support for the state survey of custody transfer practices. We appreciate the efforts on behalf of this survey by staff from the State of Ohio, particularly Jean Ellen Stevens, Administrative Assistant to the Director of the Department of Mental Health. Margraret McNally assisted in the compilation of data for both surveys.  相似文献   
132.
Studies of intimate partner violence (IPV) and work have been primarily conducted with women in low-wage low-status (LWLS) positions, as much of this research has focused on poverty, welfare, and homelessness. Although women in LWLS positions represent a large percentage of working women in the United States, it is also important to investigate experiences of women in high-wage high-status (HWHS) positions because a growing number of women are employed within such jobs. We propose gender role theory can be used to explain occurrences of IPV among women in HWHS positions and their utilization of organizational benefits. We suggest those in HWHS positions may be likely to have access to organizational benefits (e.g., medical, vacation, and flexible work schedules) and the ability to utilize the Family and Medical Leave Act. However, prevailing gender roles existing in organizations may render women in HWHS positions unlikely to use benefits or to take leave.  相似文献   
133.
Using four categories of accuracy (true positive, false positive, true negative, false negative), this study explored (1) how accurately intimate partner violence (IPV) victims are able to assess their risk of re-abuse; and (2) potential predictors of accuracy. Women seeking help for IPV (N = 246) rated the likelihood that they would experience physical re-abuse in the coming year and then reported 18 months later whether those risks had been realized. Victim assessments were more likely to be right than wrong, and were subject to neither a pessimistic nor optimistic bias. In the multivariate analysis, significant/marginally significant predictors of the accuracy categories were the history of violence from this and former partners, level of substance use, PTSD symptoms, and the recency of the violence. Among the more robust findings were the connection between level of stalking and true positives, and between substance use and false negatives. This study suggests that victim assessments have significant potential to inform practice, and deserve further exploration.
Lauren Bennett CattaneoEmail:
  相似文献   
134.
One of the most prominent claims to emerge from the field of public opinion is that citizens can vote for candidates whose issue positions best reflect their own beliefs even when they cannot remember previously learned stances associated with the candidates. The current experiment provides a unique and powerful examination of this claim by determining whether individuals with profound amnesia, whose severe memory impairments prevent them from remembering specific issue information associated with any particular candidate, can vote for candidates whose issue positions come closest to their own political views. We report here that amnesic patients, despite not being able to remember any issue information, consistently voted for candidates with favored political positions. Thus, sound voting decisions do not require recall or recognition of previously learned associations between candidates and their issue positions. This result supports a multiple memory systems model of political decision making.  相似文献   
135.
A collaborative study on Raman spectroscopy and microspectrophotometry (MSP) was carried out by members of the ENFSI (European Network of Forensic Science Institutes) European Fibres Group (EFG) on different dyed cotton fabrics. The detection limits of the two methods were tested on two cotton sets with a dye concentration ranging from 0.5 to 0.005% (w/w). This survey shows that it is possible to detect the presence of dye in fibres with concentrations below that detectable by the traditional methods of light microscopy and microspectrophotometry (MSP). The MSP detection limit for the dyes used in this study was found to be a concentration of 0.5% (w/w). At this concentration, the fibres appear colourless with light microscopy. Raman spectroscopy clearly shows a higher potential to detect concentrations of dyes as low as 0.05% for the yellow dye RY145 and 0.005% for the blue dye RB221. This detection limit was found to depend both on the chemical composition of the dye itself and on the analytical conditions, particularly the laser wavelength. Furthermore, analysis of binary mixtures of dyes showed that while the minor dye was detected at 1.5% (w/w) (30% of the total dye concentration) using microspectrophotometry, it was detected at a level as low as 0.05% (w/w) (10% of the total dye concentration) using Raman spectroscopy. This work also highlights the importance of a flexible Raman instrument equipped with several lasers at different wavelengths for the analysis of dyed fibres. The operator and the set up of the analytical conditions are also of prime importance in order to obtain high quality spectra. Changing the laser wavelength is important to detect different dyes in a mixture.  相似文献   
136.
Preliminary research suggests that child abuse is indirectly associated with female-perpetrated intimate partner violence via posttraumatic stress disorder (PTSD) symptoms and anger. To date, however, no known studies have investigated these relationships for physical and psychological dating violence within a female college sample. Therefore, the purpose of the current study was to examine the impact of child abuse history, PTSD symptoms, and anger arousal on female-perpetrated physical and psychological dating violence. Female undergraduates (N = 496) completed measures of child abuse, PTSD symptoms, anger arousal, and dating violence perpetration as part of a larger trauma and violence study. Results indicated that child abuse directly predicted female-perpetrated physical and psychological dating violence and indirectly impacted female-perpetrated physical and psychological dating violence via PTSD symptoms and anger arousal. The direct relationships between PTSD symptoms and female-perpetrated physical and psychological dating violence were nonsignificant after controlling for the effect of anger arousal.  相似文献   
137.
Five pairs of mass graves, each containing carcasses of 21 rabbits, were used to examine differential decomposition at four locations within the burial: surface, deep, mid‐outer, and core. Every 100 accumulated degree days (ADD), a pair of graves was exhumed, and total body score (TBS) and internal carcass temperature of each rabbit were recorded. Decomposition did not differ for core‐ and deep‐positioned carcasses (p = 0.13); differences were significant (p < 0.001) for all other location comparisons. Decomposition occurred fastest in shallow carcasses, followed by mid‐outer carcasses; deep and core carcasses decomposed slowest and at rates not significantly different from one another. Adipocere formation was minimal and confined to deep carcasses. Carcass location within the mass grave significantly influenced internal carcass temperature (p < 0.001); a mean internal temperature difference of ca. 1°C existed between deep and shallow carcasses (30 cm apart). Effects of mass compactness and oxygenation require further investigation.  相似文献   
138.
Abstract

During a xenophobia and social cohesion research project conducted by the Safety and Violence Initiative (SaVI) of the University of Cape Town (UCT) and Freedom House USA, researchers found an overwhelming perception that foreign nationals were taking things that belong to South Africans. This perception was most prevalent in the male population, and antiforeigner resentment was mainly aimed toward male foreign nationals. This paper uses ethnographic research in the form of qualitative interviews from Motherwell and Makhanda in the Eastern Cape province to find out how constructions of hegemonic masculinities at the local level contribute to antiforeigner resentment.  相似文献   
139.
In this project, we investigate the relationship between the use of military force and trade interdependence, suggesting that the influence of trade on militarized conflict varies based on the issue under dispute. For some issues, trade is likely to attenuate the chances that states escalate a dispute to the use of military force, while for others trade can intensify disputes so that military conflict is more likely. Specifically, we hypothesize that greater trade interdependence decreases the probability of military conflict over realpolitik issues like territory. On the other hand, greater trade interdependence increases the probability that states use military force when the issue under dispute concerns the regime, policies, and conditions in the target. To test our hypotheses, we employ new data on dyadic uses of force from the International Military Intervention data set that records the initiator’s reason(s) for using force against the target. The statistical tests support our hypotheses; trade decreases the use of force against a target for territorial and military/diplomatic reasons, which is consistent with arguments from the liberal paradigm. However, trade interdependence increases the use of force for humanitarian and economic reasons as well as to affect the regime or policy of the target. Thus, our study improves upon current research about the relationship between economic interdependence and foreign policy by specifying a conditional relationship based on the issues under contention.  相似文献   
140.

Objectives

Non-Hispanic blacks and Hispanics in the United States are more likely to be incarcerated than non-Hispanic whites. The risk of incarceration also varies with age, and there are striking differences in age distributions across racial/ethnic groups. Guided by these trends, the present study examines the extent to which differences in age structure account for incarceration disparities across racial and ethnic groups.

Methods

We apply two techniques commonly employed in the field of demography, age-standardization and decomposition, to data provided by the Bureau of Justice Statistics and the 2010 decennial census to assess the contribution of age structure to racial and ethnic disparities in incarceration.

Findings

The non-Hispanic black and Hispanic incarceration rates in 2010 would have been 13–20 % lower if these groups had age structures identical to that of the non-Hispanic white population. Moreover, age structure accounts for 20 % of the Hispanic/white disparity and 8 % of the black/white disparity.

Conclusion

The comparison of crude incarceration rates across racial/ethnic groups may not be ideal because these groups boast strikingly different age structures. Since the risk of imprisonment is tied to age, criminologists should consider adjusting for age structure when comparing rates of incarceration across groups.
  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