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   8543篇
  免费   23篇
各国政治   218篇
工人农民   1080篇
世界政治   309篇
外交国际关系   293篇
法律   4763篇
中国政治   8篇
政治理论   1894篇
综合类   1篇
  2023年   6篇
  2022年   3篇
  2021年   4篇
  2020年   10篇
  2019年   17篇
  2018年   1280篇
  2017年   1206篇
  2016年   1020篇
  2015年   66篇
  2014年   21篇
  2013年   49篇
  2012年   210篇
  2011年   927篇
  2010年   1034篇
  2009年   589篇
  2008年   755篇
  2007年   710篇
  2006年   19篇
  2005年   79篇
  2004年   176篇
  2003年   146篇
  2002年   39篇
  2001年   13篇
  2000年   9篇
  1999年   5篇
  1998年   11篇
  1997年   16篇
  1996年   21篇
  1995年   32篇
  1994年   25篇
  1993年   1篇
  1992年   2篇
  1991年   2篇
  1990年   2篇
  1989年   1篇
  1988年   2篇
  1987年   1篇
  1986年   3篇
  1985年   1篇
  1984年   10篇
  1983年   8篇
  1982年   7篇
  1981年   2篇
  1979年   5篇
  1978年   9篇
  1977年   10篇
  1974年   1篇
  1967年   1篇
排序方式: 共有8566条查询结果,搜索用时 31 毫秒
991.
We examine the understudied link between mental/physical health problems and their relationship with perceived unsafety via higher levels of vulnerability. We examine this relationship by linking data at the individual-level, the neighborhood-level, and the county-level using the Portraits of American Life Survey (PALS). Using this data we examine the effect of individual and neighborhood conditions on perceived safety while controlling for county-level crime rates. Findings indicate that higher numbers of physical impairment and mental health issues are independently related to higher levels of perceived unsafety. Both mental and physical health problems are associated with higher levels of fear. These higher levels of vulnerability then directly contribute to higher levels of feeling of unsafety. Unlike past research, we find a mental health link to fear of crime that cannot be explained by physical impairments.  相似文献   
992.
With growing numbers of female staff in correctional settings, issues relating to promotional fairness are certain to occur. Historically, female detention staff held perceptions of being discriminated against in the promotional process due to gender biases. However, there is almost no recent examination of these perceptions. The current study addresses this shortcoming in the literature by using a sample of 362 sworn detention deputies ranked Sergeant and below at a large southern-central United States jail. Contrary to the data from a generation ago, more male detention staff perceive gender biases in the promotional process than females, and report that promotional decisions are based on arbitrary and informal factors. Women are more likely to perceive promotions to be fair and based on merit. Results are discussed in relation to two theoretical perspectives: the importation-differential experiences model, and the work-role prisonization model.  相似文献   
993.
This study examines macro-level variation in juvenile theft and burglary arrest rates using a sample of 127 large cities in the United States. Independent variables were drawn from routine activities theory and included measures of guardianship (e.g., portion of families with both parents working, police to resident ratio, etc.), the number of motivated offenders (e.g., portion of the population under age 18), and the availability of suitable targets (e.g., poverty rates). Both ordinary least squares and weighted least squares regression analyses were performed. These analyses found that the significant predictors varied between burglary and theft. Additionally, there were differences in the predictors which significantly affected the arrest rates of male and female juveniles. However, within each offense the models explained similar portions of the overall variation in arrests for both genders.  相似文献   
994.
This paper provides new insights on the study of crime modeling through the development of a hybrid cellular automaton (CA) and Multi-agent System (MAS) simulation model that is able to combine components of multiple criminological theories to forecast the locations of residential burglary targets: journey to crime (JTC), social disorganization (SD) theory, and routine activity (RA) theory. In order to combine individual factors from each theory into a unified model, Analytic Hierarchy Process (AHP) was employed for hierarchical parameter selection. The model is then evaluated using data on offenders obtained from the Dallas Police Department to examine how different crime theories perform in the prediction of residential burglary. Compared to the SD- and RA-weighted models, the JTC-weighted model performed the best when comparisons were made to actual burglary locations. The findings demonstrate that the simulation models of crime provide test beds for research into the explanatory power of various crime theories.  相似文献   
995.
Following recent high-profile deaths of unarmed African American suspects at the hands of police, a number of reforms have been proposed, among them improved minority representation in the ranks of law enforcement organizations. Previous research has explored the effects of minority representation on complaints against the police and other behaviors, but very few studies have examined violence toward the police. We merged several data sources together and tested the hypothesis that minority representation within police departments is inversely associated with assaults against the police. In an extension of prior research, we also conducted separate analyses for African American, Hispanic, and Asian officer representation. The results did not support the expectation that diversity within police organizations results in improved police-citizen interactions, as measured by assaults on police. This study is one of the few to examine how different measures of minority representation in police agencies relates to assaults on the police.  相似文献   
996.
The goal of the present study is to clarify the heterogeneity of risky behaviors (such as substance use, gambling, and crime) and psychiatric disorders among a large sample of 5304 nationally representative adults who acknowledge engaging in sexually-impulsive behaviors. Participants were selected from more than 43,000 respondents of the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC). Latent class analysis was used to identify subgroups of sexually-impulsive individuals and then multinomial regression was used to identify the relative risk for comorbidity with related impulsive behaviors or psychiatric disorders. Results showed that a four class solution provided the best fit and revealed higher odds of experiencing specific comorbid risky behaviors or psychiatric disorders based on class membership. Results challenge the widely held notion that self-regulatory behaviors are impacted globally, and instead suggest that certain self-regulatory behaviors are more likely to be impacted when other underlying conditions are present in sexually-impulsive individuals. Implications of this heterogeneity and recommendations for health care providers are discussed.  相似文献   
997.
Citizen police academies (CPAs) are popular programs developed by police departments with the twin goals of educating the public about law enforcement and improving police-community relationships. Citizen police academies can help law enforcement agencies by providing them with graduates who may support police departments through volunteering, crime reporting, advocacy, and crime prevention. CPAs may aid citizens by providing them with opportunities to work with the police to make their communities safer. During the course of the citizen police academy, not only will participants have opportunities to learn more about the police depar'tment and their communities, but they may be given opportunities to patrol with police officers, solve mock crime scenes, or attend moot court. This study examines citizen police academies in Tennessee and provides an exploratory investigation of the programs and its participants. Data obtained from 31 police departments indicate CPA programs with more than a 20 year history in Tennessee. Results of a pretest and posttest of 4 citizen police academies’ participants found that attending these programs significantly and positively changed participants’ familiarity with the police chief, local law enforcement, community crime, and the criminal justice system.  相似文献   
998.
The standard of proof beyond a reasonable doubt is based on the law's primary motivation to avoid false conviction even at the expense of increasing the probability of false acquittal. Individual jurors, however, have common sense motivations to make factually correct decisions by avoiding both types of error. As a result jurors may interpret the standard of reasonable doubt correctly but deviate from that interpretation in predictable ways when they apply the standard in court. This study makes three hypotheses: (1) jurors are less confident when deciding on acquittal than when deciding upon conviction, (2) conviction is associated with a downward adjustment of the interpreted stringency of the standard at the time of application, and (3) a highly stringent interpretation of the standard is associated with a severe downward adjustment of that stringency at the time of application. The study asked 260 juror-eligible participants to examine a trial scenario. The participants first interpreted the stringency of the legal standard on a probability scale. They then judged the probability of the defendant's guilt, decided on a verdict, and rated their confidence in that verdict. The findings strongly supported all three hypotheses. Application and implication of the study were discussed.  相似文献   
999.
Following the Fukushima disaster in Japan in 2011, how the compensation system for nuclear damage should be improved has obtained broad attention. The compensation system, including liability rules, insurance and government involvement, does not only concern to what extent the victims can be sufficiently compensated, but is also relevant to create incentives for the nuclear industry to enhance safety. International compensation regimes for nuclear damage started to emerge since 1960s, but still fail to engage some (potentially) big “nuclear power” ones. The Japanese and Chinese systems are such ones which received less attention until recently. This paper will, on the one hand, engage in a positive study by giving a comparison between the international regime, the Japanese and the Chinese system; on the other hand, provide a normative analysis by using economic criteria to examine the efficiency of the systems and formulate suggestions for reform.  相似文献   
1000.
International rivers create complex relationships between their riparian states, which can contribute to economic, political, and social losses. Treaties provide a means for states to coordinate their actions in managing international river disputes to minimize these losses. However, there is little knowledge about treaty content and the factors influencing treaty design. We test whether a relationship exists between the challenges of negotiating, complying, and distributing the gains in bilateral, multilateral, and basin-wide negotiation contexts and the depth of cooperation along with the degree of institutionalization. While the great challenges confronting multilateral or basin-wide negotiations can produce treaties that focus on joint gains and shallow cooperation to secure the signature of riparians, we find that they can also provide opportunities for deeper, more behavior-altering, cooperation. To manage the difficulties of maintaining multilateral cooperation, we find a higher degree of institutionalization. We also find that bilateral negotiations provide states with opportunities for deeper cooperation, but a lower degree of institutionalization.  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