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   465篇
  免费   23篇
各国政治   16篇
工人农民   30篇
世界政治   37篇
外交国际关系   30篇
法律   222篇
中国政治   3篇
政治理论   145篇
综合类   5篇
  2023年   4篇
  2021年   6篇
  2020年   4篇
  2019年   11篇
  2018年   22篇
  2017年   21篇
  2016年   15篇
  2015年   13篇
  2014年   15篇
  2013年   75篇
  2012年   10篇
  2011年   12篇
  2010年   8篇
  2009年   9篇
  2008年   13篇
  2007年   15篇
  2006年   27篇
  2005年   10篇
  2004年   11篇
  2003年   13篇
  2002年   17篇
  2001年   11篇
  2000年   12篇
  1999年   14篇
  1998年   9篇
  1997年   6篇
  1996年   3篇
  1995年   8篇
  1994年   9篇
  1993年   9篇
  1992年   9篇
  1991年   8篇
  1990年   4篇
  1989年   2篇
  1988年   7篇
  1987年   4篇
  1986年   5篇
  1985年   6篇
  1984年   7篇
  1983年   2篇
  1982年   4篇
  1980年   1篇
  1979年   2篇
  1978年   1篇
  1976年   5篇
  1975年   1篇
  1972年   1篇
  1971年   3篇
  1970年   1篇
  1966年   3篇
排序方式: 共有488条查询结果,搜索用时 31 毫秒
131.
The domestic violence advocacy and family court communities have each grown dramatically over the last three decades. Although these professional communities share many values in common, they often find themselves at odds with one another on a host of issues. This article examines the practical, political, definitional, and ideological differences between the two communities and calls for them to join forces and collaborate on behalf of children and families.  相似文献   
132.
Examined the outcome of a mentoring program aimed at minimizing conduct problems for young adolescent children at risk for delinquent behavior. The program was designed to give an alternative, prosocial role model for children with a history of rule-breaking and acting out behavior in school. Thirteen mentors attended weekly supervision sessions and were responsible for working with 1 at-risk child for 15 h per week. Both parents and teachers assessed behavior change at 4 intervals. Mentors and mentees also completed several evaluations of the program. The parent-report indicated significant decreases in both internalizing and externalizing behavior in the mentees during and at the end of the program. However, no significant changes were found for teacher-reported behavior. The mentors indicated that participating as a mentor enhanced their learning about children and further directed their educational goals. Implications of the effectiveness of mentoring are discussed.  相似文献   
133.
This paper investigates the determinants of legal change in a public choice framework. An empirical model explaining the timing and probability of decisions to adopt state-operated lotteries is developed. Employing a Tobit estimator and explicitly considering the effects of state-specific constitutional and political structures, spending and tax policies, and federal revenue importation, evidence is presented showing that legal change is much like economic change: Lotteries are more likely to be adopted and to be adopted earlier where the costs are lowest relative to expected benefits. State legislatures appear to be the main beneficiaries of this public choice process.  相似文献   
134.
135.
Much research on sexual deviance on university and college campuses is limited by its narrow focus on group affiliation. In this study, it is argued that prior deviance and opportunity serve as more robust predictor variables of sexual deviance. Using a sample of 304 male college students from four universities within the Ohio Valley Conference, this paper utilizes Analytic moment structures (AMOS) analyses to examine the relationship between prior deviance and sexual deviance. Results support the assumption that sexual aggression is significantly (β=.17) mediated or accounted for by opportunity. Overall, the relationships among variables lend support to the argument that alternative explanations of sexual deviance may provide a better understanding of such a complex societal problem.
Louis VenezianoEmail:
  相似文献   
136.
Bleach (sodium hypochlorite) has been identified as the adulterant in a relatively large number of product tamperings that have been investigated by the Forensic Chemistry Center (FCC) of the U.S. Food and Drug Administration. In this work, household bleach was added to 23 different beverages at each of three levels. The impact of sodium hypochlorite on these beverages over a 13-day study period was evaluated using the following techniques: diphenylamine spot test for oxidizing agents, potassium iodide-starch test paper for oxidizing agents, pH, iodometric titration for quantitating hypochlorite, ion chromatography for chloride and chlorate quantitation, automated headspace sampling with gas chromatography-flame ionization detection (GC-FID) for determination of chloroform, and visual and organoleptic observations. This study has shown that hypochlorite is fragile when added to most common beverages and typically breaks down either partially or completely over time. In cases where a beverage is suspected of being adulterated with bleach but tests for hypochlorite are negative, it is still possible to characterize the product to demonstrate that the results are consistent with the addition of bleach. An adulterated product will give a positive test for oxidizing agents using the diphenylamine spot test. It is likely that the pH of the adulterated product will be higher than a control of that product. Ion chromatographic analysis shows elevated chloride and chlorate as compared with a control. And, chloroform may also be detected by GC-FID especially if the beverage that was adulterated contains citric acid.  相似文献   
137.
The contracting of public services has been an integral part of public managers’ work for a long time, and it is here to stay. This essay sums up current research on the topic for busy practitioners and scholars. Where are we today with respect to the problems and pitfalls of contracting out, from balancing equity with efficiency to confronting the frequent problem of imperfect markets?  相似文献   
138.
Examinations of the sociodemographic group foundations of presidential voting and electoral coalitions rely on national samples (e.g., the American National Election Studies). However, recent developments in the state party and electoral change literature suggest variation across the United States in the group bases of political coalitions and in the process of electoral adjustment. Moreover, the strategic implications of the electoral college suggest a focus on state electorates. We estimate multivariate, group-based logit models of presidential vote choice using 1988 CBS/ New York Times and 1992 Voter Research and Surveys exit poll data from each of the largest states. Our results reveal noteworthy variation in the nature of group influences on presidential voting, in the composition of presidential electoral coalitions, and in cleavage structures across the states. This mapping exercise suggests limitations in theoretical and empirical accounts of presidential voting, political cleavage, and electoral change that do not accommodate the geopolitical diversity of the United States.  相似文献   
139.
Results of the second year of a 3-year longitudinal study on children's body size estimations are reported. Participants were 216 male and female children age 6 through 13. Body size estimations were measured using a TV-video methodology. Three psychophysical procedures measured perceived body size, idealized size, and body dissatisfaction. Self-esteem, body esteem, birth order, number of siblings, and parents' socioeconomic status (SES) were measured. Children were accurate in estimating body size, with no gender, age, or ethnic differences. Individual estimations varied greatly over the 1-year test-retest interval. Children had a slight bias to report that their body size was distorted too wide. Both genders wanted to be thinner, with females wanting to be increasingly thinner as they became older. Females were also more dissatisfied with their body size. Taller and heavier children with high SES fathers wanted a thinner idealized body size. Taller, thinner children had less body size dissatisfaction. Children with a larger number of siblings who were one of the first born were more dissatisfied with their body size. Children who gained weight during the previous year without a concomitant growth in height were also more dissatisfied with their body and wanted to be thinner. Body size estimation is viewed as an important aspect of one's body image and is mediated by many different variables, each of which individually explains only a small part of the variance.  相似文献   
140.
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