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   24948篇
  免费   782篇
  国内免费   5篇
各国政治   924篇
工人农民   1136篇
世界政治   1612篇
外交国际关系   829篇
法律   15847篇
中国共产党   40篇
中国政治   263篇
政治理论   4784篇
综合类   300篇
  2021年   139篇
  2020年   342篇
  2019年   376篇
  2018年   520篇
  2017年   605篇
  2016年   629篇
  2015年   494篇
  2014年   499篇
  2013年   2222篇
  2012年   650篇
  2011年   706篇
  2010年   569篇
  2009年   652篇
  2008年   752篇
  2007年   831篇
  2006年   801篇
  2005年   716篇
  2004年   713篇
  2003年   680篇
  2002年   616篇
  2001年   924篇
  2000年   801篇
  1999年   677篇
  1998年   382篇
  1997年   268篇
  1996年   325篇
  1995年   269篇
  1994年   310篇
  1993年   302篇
  1992年   467篇
  1991年   555篇
  1990年   511篇
  1989年   446篇
  1988年   498篇
  1987年   441篇
  1986年   501篇
  1985年   444篇
  1984年   368篇
  1983年   353篇
  1982年   265篇
  1981年   303篇
  1980年   222篇
  1979年   258篇
  1978年   207篇
  1977年   173篇
  1976年   156篇
  1975年   178篇
  1974年   184篇
  1973年   168篇
  1969年   137篇
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
751.
752.
In the United States participatory budgeting (PB) is a relatively new and innovative approach to municipal budgeting that has implications for improving the role of citizen participation in the budgetary process. The research is based on personal interviews with local community leaders involved in the PB process in the 49th Ward of Chicago, Illinois; the 6th Ward of St. Louis, Missouri; and the City of Boston, Massachusetts. Highlights are provided of the specific experiences and perceptions of these community leaders with a particular emphasis on the use of social media platforms in engaging citizens in the PB process. This article concludes with recommendations for creating a PB infrastructure, for increasing citizen participation in the PB process, and for assessing and increasing the impact of PB in cities within the United States.  相似文献   
753.
Research examining correctional officer perceptions about the sexual victimization of inmates is rare. This research offers a first glimpse of what personal, job-related, and attitudinal factors influence blaming incarcerated sexual assault victims among a sample of 376 jail correctional officers in one state. Surveys are utilized to elicit understanding about officer perceptions of incarcerated victims. Findings indicate that jail correctional officer blaming of incarcerated sexual assault victims is highly correlated with perceptions about rape myths and homosexuality. Specifically, officers who adhere to rape myths and disapprove of homosexuality are more likely to blame incarcerated victims of sexual assault. This study is a first to examine factors correlated with jail correctional officer blaming of incarcerated sexual assault victims. The results are useful in understanding the perspectives of jail correctional officers and experiences of victims incarcerated in jails. Implications for correctional institutions and authorities include attending to the issue of sexual assault in correctional facilities, understanding staff perceptions that are related to this issue, training of staff, and classification of inmates.  相似文献   
754.
Analysis of information held by police, probation, and third-sector organizations in Wales about 100 domestic abuse perpetrators, along with 16 practitioner interviews, provides the empirical context for a discussion of the problem of “serial domestic abuse.” Despite increased concern over the harm caused by serial abusers, different definitions and recording systems prevent a reliable estimation of the problem. This exploratory study suggests that the offending profiles of serial abusers are heterogeneous, and recommends that approaches aimed at reducing the harm caused by the “power few” domestic abusers incorporate information about serial alongside repeat and high-risk offending.  相似文献   
755.
Are internalizing and externalizing behavior problems interrelated via mutually reinforcing relationships (with each behavior leading to increases over time in levels of the other behavior) or mutually suppressing relationships (with each behavior leading to decreases over time in levels of the other behavior)? Past research on the directionality of these relationships has led to ambiguous results, particularly in adolescence. Furthermore, the extent to which prior results will generalize to adolescents with low levels of cognitive abilities remains unknown. This second limit is particularly important, given that these adolescents are known to present higher levels of externalizing and internalizing behaviors than their peers with average-to-high levels of cognitive abilities, and that the mechanisms involved in the reciprocal relationships between these two types of behaviors may differ across both populations. This study examines the directionality of the longitudinal relationships between externalizing and internalizing behavior problems as rated by teachers across three measurement waves (corresponding to Grades 8–10) in matched samples of 138 adolescents (34.78?% girls) with low levels of cognitive abilities and 556 adolescents (44.88?% girls) with average-to-high levels of cognitive abilities. The results showed that the measurement structure was fully equivalent across time periods and groups of adolescents, revealing high levels of developmental stability in both types of problems, and moderately high levels of cross-sectional associations. Levels of both internalizing and externalizing behaviors were higher among adolescents with low levels of cognitive abilities relative to those with average-to-high levels of cognitive abilities. Finally, the predictive analyses revealed negative reciprocal longitudinal relationships (i.e., mutually suppressing relationships) between externalizing and internalizing problems, a result that was replicated within samples of adolescents with low, and average-to-high levels of cognitive ability.  相似文献   
756.
Early alcohol use is associated with multiple negative outcomes later in life, including substance use disorders. Identification of factors related to this very early risk indicator can help inform early prevention efforts. This study prospectively examined the relationship between childhood adversities and early initiation of alcohol use (by age 14) among Puerto Rican youth, the Latino subgroup at highest risk for alcohol use disorders in adulthood. The data come from the Boricua Youth Study, a longitudinal study of Puerto Rican youth in two sites (South Bronx, New York, and the standard metropolitan area of San Juan, Puerto Rico). We focus on youth who were ages 10 and older at Wave 1 [M age at Wave 1 (SE)?=?11.64(0.05), N?=?1259, 48.85?% females]. Twelve childhood adversities were measured at Wave 1 and include 10 adverse childhood experiences commonly studied and two additional ones (exposure to violence and discrimination) that were deemed relevant for this study’s population. Early initiation of alcohol use was determined based on youth report at Waves 1 through 3 (each wave 1 year apart). Cox proportional hazards models showed that, when considered individually, adversities reflecting child maltreatment, parental maladjustment, and sociocultural stressors were related to early initiation of alcohol use. Significant gender interactions were identified for parental emotional problems and exposure to violence, with associations found among girls only. Adversities often co-occurred, and when they were considered jointly, physical and emotional abuse, parental antisocial personality, and exposure to violence had independent associations with early alcohol use, with a stronger influence of exposure to violence in girls compared to boys. The accumulation of adversities, regardless of the specific type of exposure, increased the risk for starting to drink at a young age in a linear way. The associations between childhood adversities and early alcohol use were generally consistent across sociocultural contexts, in spite of differences in the prevalence of exposure to adversity. Our findings highlight the importance of targeting multiple adversities and expanding the notion of adversity to capture the experiences of specific groups more adequately.  相似文献   
757.
Although research consistently suggests that adolescents in single-mother families are at increased risk for depression, the mechanisms that explain this relationship are unclear. In a community sample of adolescents (N?=?368; ages 12–16; 50?% female; 50?% White) and their mothers (42?% single), adolescents completed measures of depressive symptoms, rumination, and depressogenic inferential style at baseline and two yearly follow-ups. Mothers reported on stressful events that occurred in the child’s life from birth until baseline. Adolescents raised by single mothers, relative to partnered mothers, experienced more childhood stressors and higher rumination levels at 1-year follow-up. Additionally, higher rumination mediated the relationship between single motherhood and greater youth depressive symptoms at the 2-year follow-up. Clinical implications and developmental considerations are discussed.  相似文献   
758.
Adolescence is a challenging developmental period marked with declines in emotional well-being; however, self-compassion has been suggested as a protective factor. This cross-sectional survey study (N?=?765, grades 7th to 12th; 53?% female; 4?% Hispanic ethnicity; 64?% White and 21?% Black) examined whether adolescents’ self-compassion differed by age and gender, and secondly, whether its associations with emotional well-being (perceived stress, life satisfaction, distress intolerance, depressive symptoms, and anxiety) also differed by age and gender. The findings indicated that older females had the lowest self-compassion levels compared to younger females or all-age males. Self-compassion was associated with all emotional well-being measures, and gender and/or age moderated the associations with anxiety and depressive symptoms. Among older adolescents, self-compassion had a greater protective effect on anxiety for boys than for girls. Additionally, older adolescents with low and average self-compassion had greater levels of depressive symptoms than those with high self-compassion. These results may inform for whom and at what age self-compassion interventions may be implemented to protect adolescents from further declines in emotional well-being.  相似文献   
759.
Following an introduction to the changes in how ethno-racial identity is conceptualized in the social sciences and humanities by the destabilization of categorical frameworks, the author looks at how law reacts to these discussions and paradigm shifts, and argues that legal and administrative approaches face severe linguistic and conceptual limitations by operating within a “choice” and “fraud” binary. The article then questions if the free choice of identity exists as a principle of international minority protection law, a legal field that arguably represents a global political and ethical consensus. The author makes two claims. First, according to the basic tenet of legal logic, a proper right to free choice of identity allowing people to opt out of racial, ethnic, or national (minority) communities would necessitate the freedom to opt in to the majority or to any chosen group. The second claim, however, is that international law would not actually construct an approach to opting in. Thus, the right to free choice of identity is not an autonomous, sui generis right under international law.  相似文献   
760.
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