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   1853篇
  免费   81篇
各国政治   106篇
工人农民   301篇
世界政治   150篇
外交国际关系   107篇
法律   798篇
中国共产党   1篇
中国政治   24篇
政治理论   418篇
综合类   29篇
  2023年   6篇
  2022年   8篇
  2021年   11篇
  2020年   31篇
  2019年   43篇
  2018年   55篇
  2017年   60篇
  2016年   53篇
  2015年   57篇
  2014年   46篇
  2013年   273篇
  2012年   47篇
  2011年   55篇
  2010年   45篇
  2009年   61篇
  2008年   77篇
  2007年   63篇
  2006年   53篇
  2005年   63篇
  2004年   74篇
  2003年   58篇
  2002年   61篇
  2001年   40篇
  2000年   35篇
  1999年   35篇
  1998年   25篇
  1997年   42篇
  1996年   40篇
  1995年   23篇
  1994年   34篇
  1993年   25篇
  1992年   36篇
  1991年   31篇
  1990年   22篇
  1989年   26篇
  1988年   23篇
  1987年   15篇
  1986年   24篇
  1985年   15篇
  1984年   17篇
  1983年   18篇
  1982年   17篇
  1981年   17篇
  1980年   13篇
  1979年   9篇
  1978年   9篇
  1977年   10篇
  1976年   8篇
  1975年   4篇
  1974年   8篇
排序方式: 共有1934条查询结果,搜索用时 15 毫秒
141.
142.
In recent years the concept of parity democracy has rapidly risen up the European political agenda. Using a threefold typology of sex-quotas, this article undertakes a classification of the measures taken by the 15 old E.U. member states to improve the gender balance in representative assemblies. This is then used as the basis for an exploration of the advantages and disadvantages of the parity approach as a tool to promote gender equality, including the constitutional obstacles which stand in its way. The article goes on to present a comparative study of several national systems in which attempts to achieve parity democracy have been pursued, concluding that, in order to maximise their effectiveness, parity measures must operate within a system of unbiased political structures and be properly adjusted to suit the particularities of individual national electoral regimes.  相似文献   
143.
144.
145.
Thermal transfer printing refers to printing processes that utilize heat to produce an image by either physical or chemical means or by a combination of both. As the technology has improved and the supplies have become less expensive, the use of thermal printing in the personal and business markets has increased significantly. Specifically, dye diffusion thermal transfer and thermal mass transfer have become predominant in the production of counterfeit credit cards, drivers' licenses, and other types of documents produced on plastic media. Chemical analysis by means of thin layer chromatography (TLC) has proven to be useful in characterizing various types of inks (e.g., writing and inkjet inks). In this study, the authors examined 81 different samples that included a total of 54 printer samples (43 photographic prints on paper and eleven plastic card samples) and 27 printer ribbons. A new TLC method was developed and tested utilizing a solvent system (80% n-hexane, 3% methyl ethyl ketone, and 17% ethyl acetate) that is capable of producing excellent resolution.  相似文献   
146.
A 29-year old female with a history of depression was found dead in a hotel room. The death scene investigation found empty pill bottles and an empty liter bottle of wine. Metaxalone, a centrally acting muscle relaxant, along with citalopram, ethanol, and chlorpheniramine were identified in the postmortem samples and quantitated by gas chromatography-mass spectrometry. The concentration of metaxalone in femoral vein blood was 39 mg/L. The heart blood concentration was 54 mg/L. Femoral vein blood concentrations of citalopram and chlorpheniramine were 0.77 mg/L and 0.04 mg/L, respectively. Ethanol levels were 0.13 g/dL in vitreous and 0.08 g/dL in heart blood. Other tissue samples were also analyzed. The authors consider the metaxalone concentrations toxic and potentially fatal. The citalopram concentrations were lower than those reported in fatal cases for this drug alone. Death was ascribed to polydrug abuse/overdose with metaxalone a major contributor. This represents the first reported case to our knowledge in which a metaxalone overdose significantly contributed to death.  相似文献   
147.
The present research was designed to examine factors associated with career and marriage orientations in male and female college students. The first phase of the research identified qualitatively different factors associated with variations in life structure. Respondents completed an open-ended questionnaire which elicited the perceived consequences and normative pressures concerning three life structure alternatives: (a) emphasizing career, (b) emphasizing marriage, and (c) placing equal emphasis on career and mariage. A set of 24 concerns was identified, and sex differences on several of these dimensions were noted. In general, the data were consistent with previous analyses of value structures in adults. The second phase of the research used a quantitative approach to examine the three life structure alternatives. Males and females did not differ in the relative emphasis they intended to give to career and marriage. However, sex differences in the perceived consequences of the life structure alternatives were noted.This research was conducted while the first author was a National Research Service Award (NIMH) trainee, Grant No. 1 T32 MH14593. A modified version of this paper was presented at the 87th Annual Convention of the American Psychological Association, New York, september 1979.Current research interest is psychosocial development during the adult years.Received Ph.D. from the University of Illinois, 1976. Current research interest is attitude theory and measurement.  相似文献   
148.
149.
150.
A call to Civil Society   总被引:1,自引:0,他引:1  
  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