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   401篇
  免费   16篇
  国内免费   1篇
教育   346篇
科学研究   9篇
各国文化   4篇
体育   9篇
综合类   1篇
文化理论   1篇
信息传播   48篇
  2023年   1篇
  2022年   4篇
  2021年   7篇
  2020年   4篇
  2019年   8篇
  2018年   12篇
  2017年   11篇
  2016年   25篇
  2015年   10篇
  2014年   16篇
  2013年   101篇
  2012年   8篇
  2011年   7篇
  2010年   8篇
  2009年   12篇
  2008年   10篇
  2007年   14篇
  2006年   8篇
  2005年   14篇
  2004年   12篇
  2003年   12篇
  2002年   7篇
  2001年   9篇
  2000年   3篇
  1999年   10篇
  1998年   14篇
  1997年   4篇
  1996年   5篇
  1995年   5篇
  1994年   5篇
  1993年   5篇
  1992年   5篇
  1990年   4篇
  1989年   2篇
  1988年   1篇
  1987年   3篇
  1986年   1篇
  1985年   5篇
  1984年   2篇
  1983年   3篇
  1982年   6篇
  1981年   3篇
  1980年   1篇
  1979年   1篇
  1977年   1篇
  1976年   4篇
  1975年   1篇
  1968年   1篇
  1967年   1篇
  1966年   2篇
排序方式: 共有418条查询结果,搜索用时 15 毫秒
161.
162.
163.
164.
Stopping era: A pyrrhic victory   总被引:1,自引:0,他引:1  
This essay examines the rhetoric of the STOP ERA movement. It traces the elements of a divinely ordained order which STOP ERA advocates perceived in women, families, and societies and explores the contrasting anomalies and anomy which STOP ERA supporters perceive in the opposition. The essay also examines the rhetorical function of the vision offered by STOP ERA to its members and assesses the social impact of the message.  相似文献   
165.
There is a strong relationship between experiencing violence and participating in behaviors that increase the risk of contracting sexually transmitted infections. Sexual health education (SHE) tailored to the unique needs of female survivors of violence is needed. This paper presents findings from 40 surveys and 33 accompanying interviews with stakeholders representing 31 agencies in the violence advocacy community in Arkansas to investigate the feasibility, acceptability, and perceived need of a SHE program for female survivors of violence. Data also explore the role and preferences of community agencies in the design and implementation of such a program. Interviews with stakeholders revealed three themes: intervention concerns, content, and structure.  相似文献   
166.
The International Baccalaureate (IB) is noted in school reform policy circles as the gold standard of academic excellence. While the presence of IB as a sought-after education vendor has grown in the past decade, the organization has attempted to shake off its image as an elite agency serving only private international schools with its longstanding liberal arts curriculum. As such its turn toward the public sector in the United States with a credential for vocational students appears perplexing and out of step with its product brand, but the newer Career Programme (CP) is marketed as meeting the needs of applied learners in secondary schools. This paper offers a case study of two schools in one US state that adopted the CP, generating IB school enrollments from among talented vocational students while elevating its ranking on the college and career readiness (CCR) score, an annual assessment of postsecondary success. The CCR policy reformers advocate curricular improvements so that all students receive the academic foundations and employability skills needed to thrive in the new economy. Yet the egalitarian discourse of CCR could not be attended to using the CP. In this case study only high-achieving students were advised to participate and enroll in the program.  相似文献   
167.
The structural organization of metazoan cells and their shape are established through the coordinated interaction of a composite network consisting of three individual filament systems, collectively termed the cytoskeleton. Specifically, microtubules and actin filaments, which assemble from monomeric globular proteins, provide polar structures that serve motor proteins as tracks. In contrast, intermediate filaments (IFs) assemble from highly charged, extended coiled coils in a hierarchical assembly mechanism of lateral and longitudinal interaction steps into non-polar structures. IF proteins are expressed in a distinctly tissue-specific way and thereby serve to generate the precise plasticity of the respective cells and tissues. Accordingly, in the cell, numerous parameters such as pH and salt concentration are adjusted such that the generation of functional networks is ensured. Here, we transfer the problem for the mesenchymal IF protein vimentin to an in vitro setting and combine small angle x-ray scattering with microfluidics and finite element method simulations. Our approach is adapted to resolve the early assembly steps, which take place in the sub-second to second range. In particular, we reveal the influence of ion species and concentrations on the assembly. By tuning the flow rates and thus concentration profiles, we find a minimal critical salt concentration for the initiation of the assembly. Furthermore, our analysis of the surface sensitive Porod regime in the x-ray data reveals that the formation of first assembly intermediates, so-called unit length filaments, is not a one-step reaction but consists of distinct consecutive lateral association steps followed by radial compaction as well as smoothening of the surface of the full-width filament.  相似文献   
168.
169.
Martha Ann C. Caffrey is pursuing her interest in teaching early childhood education as a graduate student at the College of St. Rose in Albany, New York.  相似文献   
170.
For the first time in more than four decades, Central and EastEuropeans can openly voice their opinion about everything fromthe price of bread to the performance of the government. Publicopinion has become a dynamic factor in the decision-making processof the new governments of Hungary, Poland, and Czechoslovakiaand will play an important role in determining what kind ofpost-communist societies develop in these countries. In an effortto explore public sentiment about what kind of society theywant to develop, we analyze results from 14 nationwide, representativepublic opinion polls commissioned by the United States InformationAgency's Office of Research between June 1989 and January 1992in Hungary, Czechoslovakia, and Poland. After tracing trendsin public opinion over this period, we look at some aspectsof the political culture in these countries. We then reporton our preliminary attempts to understand the determinants ofindividual preferences for either a society that emphasizesindividual freedom and responsibility (‘individual opportunities’society) or one in which the state assumes responsibility forassuring public welfare (‘state guarantees’ society).  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