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   188篇
  免费   7篇
各国政治   19篇
工人农民   15篇
世界政治   11篇
外交国际关系   16篇
法律   71篇
中国政治   9篇
政治理论   54篇
  2023年   1篇
  2021年   2篇
  2020年   1篇
  2019年   4篇
  2018年   2篇
  2017年   3篇
  2016年   5篇
  2015年   6篇
  2014年   4篇
  2013年   29篇
  2012年   4篇
  2011年   2篇
  2010年   2篇
  2009年   5篇
  2008年   3篇
  2007年   7篇
  2006年   7篇
  2005年   4篇
  2004年   3篇
  2003年   5篇
  2002年   6篇
  2001年   3篇
  2000年   4篇
  1999年   6篇
  1998年   1篇
  1997年   3篇
  1996年   1篇
  1995年   1篇
  1994年   9篇
  1993年   6篇
  1992年   10篇
  1991年   4篇
  1990年   6篇
  1989年   4篇
  1988年   1篇
  1987年   4篇
  1986年   4篇
  1985年   1篇
  1982年   2篇
  1981年   4篇
  1979年   2篇
  1978年   3篇
  1977年   3篇
  1976年   3篇
  1975年   2篇
  1974年   1篇
  1973年   1篇
  1972年   1篇
排序方式: 共有195条查询结果,搜索用时 15 毫秒
131.
Abstract

It is necessary to explain at the outset that this is something that happened in that age now past.  相似文献   
132.
Abstract

The purpose of this essay is to explain the policy of China during the Bangla Desh crisis of 1971. To explain, however, is not to explain away. The goal is to define not to defend.  相似文献   
133.
Abstract

In this article, we use data from the 2001 American Housing Survey to evaluate whether nativity‐status differences in housing conditions vary by tenure and whether nativity status or race/ethnicity plays a more important role in determining housing conditions. Overall, when compared with native‐born households, recently arrived immigrant households are significantly more likely to be crowded, but either as likely or significantly less likely to live in poorer‐quality housing.

Further analysis revealed, however, that race/ethnicity is a stronger indicator than immigrant status in predicting housing outcomes. Among homeowners, black and Hispanic households, regardless of nativity status, exhibited lower‐quality housing outcomes than native‐born and, frequently, foreign‐born whites. Thus, we find that minorities are doubly disadvantaged: They are less likely to attain homeownership than whites, and once they do, they are almost always significantly more likely to live in poorer‐quality housing.  相似文献   
134.
Abstract

This article adds to the literature on locational attainment of immigrants by evaluating how immigrant households in New York City compare with native‐born households with respect to neighborhood characteristics. It also examines whether the relationship between immigrant status and neighborhood quality varies by race/ethnicity and place of birth.

Overall, foreign‐born households are more likely than native‐born households to live in neighborhoods with less access to medical care, higher rates of tuberculosis, and higher concentrations of poverty. Multivariate analyses reveal that all but one of these disadvantages disappear for foreign‐born households as a group. However, island‐born Puerto Ricans and immigrants—especially Dominicans, Caribbeans and Africans, and Latin Americans—are more likely to reside in lower‐quality neighborhoods than native‐born white households. Equally important, native‐born blacks and Hispanics are also disproportionately disadvantaged relative to native‐born whites, suggesting that a racial hierarchy exists in the locational attainment of households in New York City.  相似文献   
135.
The use of neonatal intensive care (NIC) continued to rise rapidly in the 1990s despite the concerns of observers about its cost effectiveness and its successes being mostly in facilities with high volume and capabilities. The objective of this study is to test the effects of insurance type, competition among hospitals, and market pressure from managed care plans on the supply and cost of NIC. The analysis uses logistic and linear models with techniques to avoid bias from (a) market area definitions based on actual patient flows and (b) self-selection of hospitals by patients with unmeasured risk of needing NIC. The data source contains all births in short-term hospitals in New Jersey during 1990 and 1994. Both the number of days and charges for NIC are reported. Key findings are that the decision of a hospital to offer NIC was associated with teaching status, the proportion of infants in the market area with documented high risk, and the market concentration of major competitors. The market share of managed care plans and the concentration of enrollment were not associated with either NIC being offered or with the standardized charges. Whether a particular patient was given to a NIC depended on patient risk factors and whether a NIC unit was present, but not on payer group. The results are consistent with the hypothesis that young insured parents (with the advice of their obstetricians) prefer hospitals with NIC and also are relatively profitable enrollees for health plans. In conclusion: using the results here and in other research, public and private policy makers may consider several ways to strengthen the incentives for health plans to contract for cost-effective birth-related services. The results also raise questions for a number of regulatory and payment policies and call for better public data on costs and outcomes for NIC.  相似文献   
136.
Conclusion Overall, the guidelines published by NIDR are a useful set of standards that should become a valuable reference tool for those responsible for evaluating and selecting mediators. Each institution that is involved in this process will find the guidelines useful as they develop their own criteria. George H. Friedman is vice president for case administration of the American Arbitration Association, 140 West 51st St., New York, N.Y. 10020.Allan D. Silberman is vice president for education and training with the AAA.The authors are grateful for the input on this brief commentary received from their AAA colleagues Thomas R. Colosi, vice president for national affairs, and Robert E. Meade, vice president for program development.  相似文献   
137.
138.
139.
This article reports on a survey of economics courses in our graduate program, identifies some of their weaknesses, and presents a number of suggestions for their improvement. The major theme that underlies my suggestions is to increase the active problem-solving roles for students in these courses, not leave the task exclusively to other courses. This can be facilitated by readings that emphasize the different processes of resource allocation, by limited use of case materials, and by development of interactive computer simulation models.  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