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   19245篇
  免费   660篇
  国内免费   5篇
各国政治   777篇
工人农民   820篇
世界政治   1285篇
外交国际关系   644篇
法律   12481篇
中国共产党   6篇
中国政治   186篇
政治理论   3528篇
综合类   183篇
  2021年   111篇
  2020年   268篇
  2019年   316篇
  2018年   391篇
  2017年   470篇
  2016年   460篇
  2015年   348篇
  2014年   364篇
  2013年   1723篇
  2012年   511篇
  2011年   564篇
  2010年   454篇
  2009年   487篇
  2008年   567篇
  2007年   597篇
  2006年   590篇
  2005年   526篇
  2004年   519篇
  2003年   551篇
  2002年   487篇
  2001年   789篇
  2000年   629篇
  1999年   544篇
  1998年   274篇
  1997年   210篇
  1996年   233篇
  1995年   216篇
  1994年   237篇
  1993年   245篇
  1992年   388篇
  1991年   411篇
  1990年   390篇
  1989年   332篇
  1988年   386篇
  1987年   330篇
  1986年   398篇
  1985年   370篇
  1984年   302篇
  1983年   282篇
  1982年   209篇
  1981年   221篇
  1980年   145篇
  1979年   202篇
  1978年   151篇
  1977年   126篇
  1975年   143篇
  1974年   159篇
  1973年   125篇
  1972年   119篇
  1968年   110篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
211.
Recent theory views adolescent behavior as nested in an ongoing system of family relationships. In keeping with this focus, differences in family functioning of high vs. low identity achievement youth were examined and variables to account for differing identity levels were explored. However, the hypothesized relationship (Circumplex Model) between family type and communication was also examined. Subjects were 411 male students, 18–24 years of age, belonging to intact nuclear middle-class homes, who resided with parents in urban areas. Measures used were the Identity Achievement Scale, Family Adaptability and Cohesion Evaluation Scale, and the Parent-Adolescent Communication Scale. Results supported an association between balanced family type and effective communication (p.001). Significant differences in the family types were found (p.001), with high identity subjects belonging to balanced families, experiencing more openness (p.01) and less problems (p.01) in communicating with parents. Openness with father, mother, and problems with father emerged as significant discriminants. There are important implications for counselling and therapy with youth, placing family at the center of the psychosocial milieu influencing their development.Received Ph.D. from H.P. University. Research interests: adolescent psychosocial development, youth, identity, and family influences.Received M.A.; Ph.D. from Boston University; Panjab University. Research interests: family interiors, women studies, life stress, self image (DAP), sexuality, myths, holistic healing, and tribal women.  相似文献   
212.
213.
214.
215.
In this article we examine how increasing the reimbursement of physicians and expanding Medicaid eligibility affect access to care for children in Cook County, Illinois, which overlies Chicago. Using Medicaid claims and other data at the zip-code level, we compare the places where Medicaid children live with the places where all the physicians who treat children and those who accept Medicaid patients have their practices. Our findings suggest that the recent changes in legislation are unlikely to benefit extremely poor children, who are more likely to live in depressed inner-city areas, where there are few physicians. "Near-poor" children whose homes are dispersed throughout the county, who are now eligible for Medicaid as a result of the recent changes, are likely to see improvements in their access to care. Further changes in policy, aimed at enhancing the capacity of institutions providing care, could improve access for the children of the inner city.  相似文献   
216.
217.
218.
219.
The Iran-Contra affair is an example of the type of event that is expected to give rise to a rally of public opinion behind the president. However, the public's response to this event, uncharacteristically, was a sharp decrease in support for President Reagan. This case study constitutes an attempt to explore the sources of the public opinion response to foreign policy events. Statements of political elites, news coverage and commentary, and public opinion assessments are examined to test the patriotism, priming, and opinion leadership explanations of the rally phenomenon. The actions of opinion leaders appears to provide the best explanation of the differential public response to the Iran-Contra affair.  相似文献   
220.
A study of 82 suicides during 1982-1986 that were committed by jumping from buildings was performed using the case files of the Office of the Medical Examiner of Metropolitan Dade County in Miami, Florida, U.S.A. The analysis involved the age, race, and sex of the victim along with the results of toxicologic studies and the cause of death. Additionally, the decedent's place of residence, location of the suicide, height of the building, and the reason for the suicide were investigated. Whether or not a note was left by the decedent was also ascertained. The suicidal "jumper" most commonly was a white man who was greater than 60 years of age who died from the resultant multiple injuries. The victim commonly was sober and drug free at the time of the incident. In approximately two-thirds of the cases, the location of the suicide was the victim's residence, which frequently was an apartment or condominium-type dwelling that was seven floors or higher from the ground. The victim often had experienced depression prior to the incident and did not usually leave a suicide note. This article compares the Dade County cases with others that have been studied and discusses the reasons why jumping from a building may have been chosen as the suicidal mechanism.  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