全文获取类型
收费全文 | 1028篇 |
免费 | 42篇 |
专业分类
各国政治 | 76篇 |
工人农民 | 29篇 |
世界政治 | 114篇 |
外交国际关系 | 115篇 |
法律 | 419篇 |
中国政治 | 10篇 |
政治理论 | 294篇 |
综合类 | 13篇 |
出版年
2023年 | 7篇 |
2022年 | 7篇 |
2021年 | 10篇 |
2020年 | 23篇 |
2019年 | 20篇 |
2018年 | 42篇 |
2017年 | 36篇 |
2016年 | 33篇 |
2015年 | 26篇 |
2014年 | 34篇 |
2013年 | 168篇 |
2012年 | 21篇 |
2011年 | 48篇 |
2010年 | 20篇 |
2009年 | 31篇 |
2008年 | 34篇 |
2007年 | 53篇 |
2006年 | 47篇 |
2005年 | 27篇 |
2004年 | 30篇 |
2003年 | 32篇 |
2002年 | 28篇 |
2001年 | 19篇 |
2000年 | 22篇 |
1999年 | 17篇 |
1998年 | 18篇 |
1997年 | 18篇 |
1996年 | 8篇 |
1995年 | 15篇 |
1994年 | 7篇 |
1993年 | 10篇 |
1992年 | 19篇 |
1991年 | 10篇 |
1990年 | 9篇 |
1986年 | 6篇 |
1985年 | 7篇 |
1984年 | 5篇 |
1983年 | 6篇 |
1982年 | 5篇 |
1980年 | 7篇 |
1979年 | 6篇 |
1978年 | 9篇 |
1977年 | 5篇 |
1974年 | 7篇 |
1973年 | 8篇 |
1972年 | 4篇 |
1971年 | 4篇 |
1969年 | 4篇 |
1967年 | 4篇 |
1966年 | 5篇 |
排序方式: 共有1070条查询结果,搜索用时 8 毫秒
51.
Privately sold bond insurance is the most common form of credit enhancement for municipal bonds. Research generally finds that bond insurance reduces interest costs for lower rated, long–term debt issues. Researchers have concluded that these results are consistent with presumed investor risk aversion, as well as more "rational" risk management behaviors, and with theories concerning the efficiency–enhancing properties of financial intermediation in imperfect markets. We propose a research agenda based both on traditional theories and on additional hypotheses that seek to account for the observed use of bond insurance where net savings would not normally be predicted. 相似文献
52.
53.
54.
Among his books are The Economics of Population Growth; Effort, Opportunity, and Wealth;and Population Matters: People, Resources, Environment, and Immigration (the latter was published by Transaction). 相似文献
55.
This study uses a Policy Delphi to discern differences in perspective among and within groups responsible for formulating and implementing vocational rehabilitation policy. Four groups of players were chosen for our analysis: government officials, academics, directors of rehabilitation centers, and the staff who interface with program participants. Significant differences were found between the groups regarding the relative importance of possible legislative goals. This suggests that the failure of vocational rehabilitation policy to promote a work agenda may be attributed to a lack of consensus among policy implementors. The Delphi technique could help policy planners understand the different perspectives within the implementation community, and hence craft more realistic legislation. 相似文献
56.
Counseling skills were evaluated in a telephone counseling service for Vietnam veterans. Thirty simulated crisis calls were made to telephone counselors by experienced clinical psychologists. The counselors' responses were rated on dimensions that indexed general counseling skills, knowledge of veteran needs, and provision of appropriate advice. Whereas the majority of callers demonstrated adequate counseling skills, many lacked knowledge of veterans' posttraumatic stress, common veteran terminology, and the nature of veterans' experiences. The findings suggest that telephone counseling services that target specific populations should employ comprehensive training to ensure that counselors possess adequate and relevant knowledge about callers and their presenting problems. The simulated caller paradigm appears to be an effective paradigm for training and evaluation of telephone counselors. 相似文献
57.
Harvey Peskin 《Journal of youth and adolescence》1973,2(4):273-290
Developmental schedules refer to temporal factors of pubertal processes as they might bear on ego development. The longitudinal research reviewed here from the 30-year archives of the Guidance Study of the Institute of Human Development pertains to the effects of varying lengths of the prepubertal and pubertal period on the short-term and enduring integration of drive states initiated at puberty. The personality correlates of varying lengths of these periods serve as vehicle for establishing properties of these stages as well as of the transition between them. The different ways the sexes respond to the early onset of puberty, as reported here, may provide an important microcosm for understanding normative sex differences in the general regulation of drive states.This research was supported by Grant MH 06238-02 from the U.S. Public Health Service, grants from the Ford Foundation, and a grant to the author from the Foundations' Fund for Research in Psychiatry.Presented at the Seventh Annual Adolescent Medicine Seminar, George Washington University Medical Center, March 15, 1971.Received Ph.D. in psychology from the University of California. Main research interests are longitudinal study of personality development and validation of psychoanalytic concepts. 相似文献
58.
The authors wished to study some of the internal psychological dynamics of achievement in a nonpatient identified high school population. Questionnaires were administered to the Grade 13 students and their parents in a large high school. A number of students whose achievement and educational plans were not congruous with their general background were selected for interview. The findings suggest that a wide variety of ages and developmental stages can be discerned as critical points in the development of a student's attitude toward higher education. These students have many values in common, and their values appear related to a positive or negative identification with parental values. The students themselves show a wide range of personality integration. They relate in a special way to a wide variety of teachers' personalities.Received M.D. from University of Alberta, Edmonton, in 1969 and completed specialty training in psychiatry at University of Toronto in 1974. Main interests include psychoanalysis, community psychiatry, and currently antabuse implants.Received M.D. from University of Toronto in 1960, D. Psych. from University of Toronto in 1963, C.R.C.P.(c) in 1965, and F.R.C.P. in 1972. Main interests include adolescent psychiatry, psychoanalysis, psychiatric residency training programs, and mental health delivery systems. 相似文献
59.
Bayesian simulation is increasingly exploited in the socialsciences for estimation and inference of model parameters. Butan especially useful (if often overlooked) feature of Bayesiansimulation is that it can be used to estimate any function ofmodel parameters, including "auxiliary" quantities such as goodness-of-fitstatistics, predicted values, and residuals. Bayesian simulationtreats these quantities as if they were missing data, samplingfrom their implied posterior densities. Exploiting this principlealso lets researchers estimate models via Bayesian simulationwhere maximum-likelihood estimation would be intractable. Bayesiansimulation thus provides a unified solution for quantitativesocial science. I elaborate these ideas in a variety of contexts:these include generalized linear models for binary responsesusing data on bill cosponsorship recently reanalyzed in PoliticalAnalysis, itemresponse models for the measurement ofrespondent's levels of political information in public opinionsurveys, the estimation and analysis of legislators' ideal pointsfrom roll-call data, and outlier-resistant regression estimatesof incumbency advantage in U.S. Congressional elections 相似文献
60.