全文获取类型
收费全文 | 1937篇 |
免费 | 119篇 |
专业分类
各国政治 | 18篇 |
工人农民 | 138篇 |
世界政治 | 40篇 |
外交国际关系 | 47篇 |
法律 | 805篇 |
中国共产党 | 65篇 |
中国政治 | 215篇 |
政治理论 | 206篇 |
综合类 | 522篇 |
出版年
2023年 | 20篇 |
2022年 | 20篇 |
2021年 | 36篇 |
2020年 | 68篇 |
2019年 | 41篇 |
2018年 | 65篇 |
2017年 | 72篇 |
2016年 | 68篇 |
2015年 | 60篇 |
2014年 | 111篇 |
2013年 | 255篇 |
2012年 | 155篇 |
2011年 | 134篇 |
2010年 | 108篇 |
2009年 | 122篇 |
2008年 | 99篇 |
2007年 | 100篇 |
2006年 | 102篇 |
2005年 | 100篇 |
2004年 | 97篇 |
2003年 | 81篇 |
2002年 | 62篇 |
2001年 | 36篇 |
2000年 | 16篇 |
1999年 | 7篇 |
1998年 | 2篇 |
1997年 | 4篇 |
1994年 | 1篇 |
1992年 | 2篇 |
1990年 | 2篇 |
1989年 | 3篇 |
1988年 | 1篇 |
1987年 | 1篇 |
1985年 | 1篇 |
1984年 | 2篇 |
1982年 | 1篇 |
1980年 | 1篇 |
排序方式: 共有2056条查询结果,搜索用时 15 毫秒
111.
Influences and Mediators of the Effect of Poverty on Young Adolescent Depressive Symptoms 总被引:2,自引:0,他引:2
Data from a sample of young adolescents between the ages of 10 and 12 years (N = 898) from the mother–child data set of the National Longitudinal Survey of Youth were analyzed in a study of influences that explain the relation between poverty and depressive symptoms measured 2 years later. Other variables that predicted youth depressive symptoms were also identified. Results indicated that neighborhood problems, nonparticipation in outside school and neighborhood activities, residing with mothers who exhibited depressive symptoms, and mother's use of physical punishment were partial mediators of the effect of poverty on depressive symptoms 2 years later. Youth health status, lower levels of school satisfaction, marital-partner conflict, and father's emotional support also predicted depressive symptoms. The findings indicate that youth depressive symptoms are multiply determined and that poverty can adversely affect young adolescents in many ways. 相似文献
112.
高新技术企业不同发展阶段的融资选择 总被引:2,自引:0,他引:2
高新技术企业投资具有高风险、高收益 ,且在其发展的各个阶段风险各不相同 ,所需要的资金数量也不一 ,这就决定了企业的融资方式及融资结构具有阶段性特征 ,前期融资主要是筹集主权资本 ,降低企业总体风险 ,而后期融资则需要兼顾资本结构优化和企业价值提高的需要。 相似文献
113.
风险投资的风险分析与控制 总被引:2,自引:0,他引:2
风险投资有着高风险、高收益的特征。风险资本和风险投资机制的建立,可以推动高科技成果的转化,使社会资源的配置达到优化。实施有效的风险控制,有助于促进风险投资的不断发展和完善。风险控制包括选择、协议、辅导、退出四个阶段,而风险投资公司要想运作成功,还必须建立起一套有效的风险控制体系。 相似文献
114.
The authors investigated the dimensions and mechanisms of belonging relevant to motivation and achievement among high school students representing 4 ethnic groups. Using survey data from 9th to 12th grade students (N = 5,494) attending 7 ethnically-diverse high schools, structural equation modeling was employed to explore, independently for each ethnic group, the relationships between students’ perceptions of their belonging (encompassing relationships with teachers and peers, extracurricular involvement, and perceived ethnic-based discrimination), motivation (efficacy beliefs and valuing school activities), and academic success. All 4 measures of belonging were significant for European-American and Latino students. However, friendship nominations were not significant for all groups, suggesting potential variability in perspectives across ethnic groups. The strength of the structural model postulating belonging as a mediator, including statistically significant indirect paths, supported the hypothesis that the belonging construct accounted for much of the relationship between student motivation and success across groups.Beverly Faircloth is a doctoral candidate of the University of North Carolina at Chapel Hill. Her research interests include the developmental and motivational processes that support adolescent school engagement in ethnically diverse settings.Jill Hamm is an Assistant Professor at the University of North Carolina at Chapel Hill. She received her Ph.D. from the University of Wisconsin-Madison in 1996. Her research interests are adolescents’ peer relations in ethnically diverse schools and classrooms. 相似文献
115.
Diane?Carlson?JonesEmail author Joy?K.?Crawford 《Journal of youth and adolescence》2005,34(6):629-636
This research evaluated a dual pathway model for body dissatisfaction among adolescent boys. The study provides empirical
support for the importance of distinguishing between weight and muscularity concerns in understanding male body image. A total
of 128 boys from grades 8 and 11 completed a self-report questionnaire. Results indicated that weight and muscularity concerns
each made unique contributions to body dissatisfaction and were associated with distinct individual and peer context characteristics.
Weight concern was associated with elevated BMI and more frequent appearance conversations with friends. Muscularity concern
was significantly greater among boys who reported more frequent muscle-building conversations, had lower BMI, and were older.
The results support the importance of distinguishing between and assessing both muscularity and weight concerns in the development
of body image dissatisfaction among adolescent boys. 相似文献
116.
Renita?R.?Glaser M.?Lee?Van.?Horn Michael?W.?ArthurEmail author J.?David.?Hawkins Richard?F.?Catalano 《Journal of Quantitative Criminology》2005,21(1):73-102
Prevention science has produced information about risk and protective factors that predict adolescent drug use and related problem behaviors. This paper investigates the Communities That Care Youth Survey that measures multiple risk and protective factors. Using a sample of 172,628 students who participated in surveys administered in seven states in 1998, analyses were conducted to test the factor structure of these risk and protective factors and to test the equivalence of the factor models across five racial/ethnic groups (African Americans, Asians or Pacific Islanders, Caucasians, Hispanic Americans, and Native Americans), four grade levels (6th, 8th, 10th, and 12th) and both gender groups. Results support the construct validity of the surveys risk and protective factor scales and indicate that the measures are equally reliable across males and females and five racial/ethnic groups. Implications of these findings for science-based prevention planning are discussed. 相似文献
117.
口供作为一种非常重要的证据,在刑事诉讼中发挥着非常重要的作用,为各国司法界所重视。然而,获取口供的过程常常与"保护人权"这一现代刑事诉讼价值目标相冲突,刑讯逼供屡禁不止。从公安院校的教育入手,就学员们对于"人权"、"刑讯逼供"认识的形成原因以及如何进行保护人权、遏制刑讯逼供教育进行探讨,以求使未来的执法人员从根本上树立惩罚犯罪与保护人权并重的意识,自觉维护和推动人类文明。 相似文献
118.
乡村集体企业的兴衰及“改制”的社会学剖析 总被引:2,自引:0,他引:2
王颉 《江苏行政学院学报》2004,(5):58-64
乡村集体企业既是中国农民继家庭联产承包责任制之后的又一创举,从某种意义上说也是面对难以突破的城乡二元结构所采取的"无奈"之举。城市改革、国有企业的改革以及大量外资的引入、私营个体经济的高速发展,尤其是买方市场的普遍确立,都直接导致了数以万计的乡村集体企业陷入前所未有的危机。乡村集体企业从整体上的"改制"标志着人民公社体制的最终退出。不能将"超级村庄"作为乡村发展的高级阶段来理解,城乡一体化、城乡协调发展才是实现中国农村现代化的必由之路。 相似文献
119.
The co-occurrence of domestic violence and child abuse is well documented (Appel, A. E., & Holden, G. W. (1998). J. Fam. Psychol. 12: 578–599; Edleson, J. L. (1999). Violence Against Women 5: 134–154). However, little is known about the correlates of co-occurring wife and child abuse. Analyzing data from the 1985 National Family Violence Survey (subsample N = 2733), this study identified risk factors associated with the co-occurrence of wife and child abuse. One-way ANOVA and chi-square analyses were conducted to compare characteristics of parents, children, and households among subgroups of families reporting some form of abuse. Key differences emerged between the three types of homes compared (i.e., those with child abuse alone, wife abuse alone, or wife and child abuse), indicating possibly distinct etiologies and processes. In particular, the co-occurrence of wife and child abuse was marked by less education, worse health, increased reports of depression, and increased husband drug use. Findings may be useful to practitioners and researchers interested in risk factors for different forms of family violence.The total does not equal 100% because certain states report more than one form of maltreatment per child. 相似文献
120.
Levenson JS 《Law and human behavior》2004,28(4):357-368
The present study investigated the reliability of Sexually Violent Predator (SVP) civil commitment criteria under Florida's Jimmy Ryce Act. The purpose of the study was to determine if, independently, 2 evaluators would reach the same conclusions about the same client (n = 295). According to civil commitment criteria outlined by the United States Supreme Court (Kansas v. Hendricks, 1997), SVPs must display a mental abnormality predisposing them to sexual violence and a likelihood of future sexual violence. The interrater reliability of 8 DSM-IV diagnoses applied by evaluators to determine whether a client has a "mental abnormality that predisposes him to sexual violence" was found to be poor to fair (kappa = .23 to . 70). The interrater reliability of risk assessment instruments used to determine "likelihood of reoffense" was good (ICC = .77 to .85). The recommendations made by evaluators regarding whether or not to refer a client for civil commitment demonstrated poor reliability (kappa = .54). Implications for practice and policy are explored. 相似文献