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   8668篇
  免费   201篇
各国政治   318篇
工人农民   422篇
世界政治   502篇
外交国际关系   287篇
法律   5968篇
中国政治   52篇
政治理论   1277篇
综合类   43篇
  2020年   94篇
  2019年   105篇
  2018年   213篇
  2017年   157篇
  2016年   256篇
  2015年   122篇
  2014年   148篇
  2013年   653篇
  2012年   300篇
  2011年   289篇
  2010年   136篇
  2009年   186篇
  2008年   184篇
  2007年   197篇
  2006年   202篇
  2005年   538篇
  2004年   276篇
  2003年   194篇
  2002年   163篇
  2001年   367篇
  2000年   324篇
  1999年   223篇
  1998年   90篇
  1997年   84篇
  1996年   79篇
  1995年   74篇
  1994年   84篇
  1993年   73篇
  1992年   193篇
  1991年   181篇
  1990年   208篇
  1989年   226篇
  1988年   220篇
  1987年   210篇
  1986年   187篇
  1985年   179篇
  1984年   122篇
  1983年   120篇
  1982年   69篇
  1981年   75篇
  1980年   56篇
  1979年   82篇
  1978年   62篇
  1977年   53篇
  1975年   71篇
  1974年   88篇
  1973年   72篇
  1972年   65篇
  1971年   60篇
  1970年   58篇
排序方式: 共有8869条查询结果,搜索用时 15 毫秒
141.
"This article reviews Mexican research of female migration. An analysis is made of socio-demographic and anthropological studies that cover the relations between inequality among the genders, the causes and features of migration, and the work performed by female migrants in their places of origin and destination. The paper responds to the growing interest shown in international literature [on] migration in order to determine the influence of gender identity in the motivations and features of the migration of women, as well as the consequences of spatial mobility on their social conditions and their autonomy." (SUMMARY IN ENG)  相似文献   
142.
143.
144.
This article discusses the reasons for use and nonuse of folk theater for communicating development messages. Theater for Development (TFD) is a tool used by development agencies for improving the quality of life among vulnerable populations. TFD uses fiction and the "safe space" of performance to comment on reality and offer alternatives. The medium offers the opportunity to explore roles that would normally be denied in real life and to explore a community's developmental aspirations. Most TFD draws on talent from the dramatic arts that is unfamiliar with development perspectives. TFD is finally being recognized as important for cultural expression suitable for self-development. Communication is the single most important aspect in the process of development. The constraints to TFD are lack of inclusion within development policy, the lack of development artists, and most importantly, time. Groups with a history of silence, oppression, and marginalization need facilitators. The Freirean model is a consciousness raising one. Participatory theater is centuries old. The most vigorous, sustained TFD theaters are in places with deprivation, poverty, disease, and hunger. These situations are well suited to TFD as a critical intervention for change. An example from the Nigerian Popular Theater Alliance is used to illustrate consciousness raising about government provision of services. TFD allows communities to draw agendas of their own. India has a substantial tradition of Social Action Groups and street theater. TFD can reverse power relations, is not dependent on literacy, and offers an entertaining way of spreading information.  相似文献   
145.
In adopting the Health Insurance Portability and Accountability Act of 1996 (HIPAA), Congress made a series of small but significant steps toward improving access to health care benefits. The Act's centerpiece is its new requirements for group health plans and for the health insurance industry for assuring portability, access, and renewability of health insurance coverage. Of nearly equal importance is the pilot program established for testing the viability of medical savings accounts. Other health-related changes include adjustments in the rules governing duplication and coordinating of Medicare-related plans, recommendations with respect to privacy of health information of employees, an increase in the deduction for health insurance costs for self-employed individuals, and permission for unemployed persons to make withdrawals from IRAs and other qualified plans for certain medical services' costs. This article summarizes these and other key provisions of HIPAA.  相似文献   
146.
147.
Theodor Herzl published his programmatic book The Jewish State in February 1896. Central to it was the discrimination (and hatred) commonly known as anti-Semitism. Herzl viewed anti-Semitism as the heart of the Jewish Question but also as the potential motivator for Jews to achieve a Jewish state. Herzl's analysis of anti-Semitic discrimination is in many aspects similar to present sociological theories of middle-class minorities. His discussion of the economic aspects is compared with Gary Becker's theory of discrimination, and similarities as well as differences are pointed out.  相似文献   
148.
Ninety Breathalyzer instruments (Model 1000) and twenty instruments (Models 900, 900A) were studied using a protocol described by the Department of Transportation's "Standard for Devices to Measure Breath Alcohol." Although the mean of each of three concentrations tested (0.05, 0.10, and 0.15 g/210 L) compared favorably in both series, the standard deviation was consistently higher for the Model 1000 instruments. The Model 1000 instruments also produced a significant number of test results which exceeded the normally expected scientific deviation.  相似文献   
149.
In Hannover/Germany in 1976 a so called "Society for Regenerative Hyperbaric Therapy" (Gesellschaft für Regenerative Uberdruck-Therapie) subjected 20 patients within two coupled multi-place chambers to a simulated hyperbaric environment, equivalent to a maximum of 4 ata, followed usually by gradual reductions of the pressure. The patients were of an average age of 67.2 years and were afflicted by various disorders. During one of the "dives" a patient developed air embolism of the central nervous system. During ensuing confusion of the chamber was opened suddenly, with resultant explosive reduction of the high pressure. This resulted in five letal accidents of decompression sickness. Post mortem examination revealed diffuse distribution of gas bubbles throughout the entire body. By elecronmicroscopy each bubble was covered by an osmiophilic coat. Post mortem findings are discussed and correlated with well-known and new clinical symptomes. These observations present for the first time fatal accidents of decompression sickness in humans, associated with hyperbaric air-therapy.  相似文献   
150.
The abuse of heroin (diacetylmorphine) in Singapore escalated sharply in 1975 and 1976, as indicated by the 35-fold increase in the number of heroin seizures and the 20-fold increase in the urine samples containing morphine since 1974. A rapid and simple GC method has been described to estimate diacetylmorphine (and caffeine). Monoacetylmorphine and acetylcodeine may be ascertained by an additional step involving acetylation. All gas chromatograms of a large number of samples analyzed consistently had the same pattern, indicating that they possibly had a common origin. This GC "fingerprint," together with the quantitative data, appears to be characteristic of the illicit Asian or Chinese type of heroin found in Singapore. The proportions of the four major ingredients in some twelve typical samples have been tabulated. Statistical data confirming the accuracy and reproducibility of the analytical method have also been presented.  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