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   1796篇
  免费   25篇
  国内免费   19篇
教育   1358篇
科学研究   102篇
各国文化   31篇
体育   98篇
综合类   70篇
文化理论   9篇
信息传播   172篇
  2023年   7篇
  2022年   5篇
  2021年   31篇
  2020年   40篇
  2019年   83篇
  2018年   69篇
  2017年   60篇
  2016年   74篇
  2015年   72篇
  2014年   120篇
  2013年   252篇
  2012年   130篇
  2011年   163篇
  2010年   101篇
  2009年   82篇
  2008年   110篇
  2007年   100篇
  2006年   72篇
  2005年   57篇
  2004年   46篇
  2003年   44篇
  2002年   45篇
  2001年   25篇
  2000年   19篇
  1999年   1篇
  1998年   3篇
  1997年   2篇
  1996年   1篇
  1995年   3篇
  1994年   3篇
  1993年   4篇
  1992年   3篇
  1988年   1篇
  1985年   4篇
  1984年   1篇
  1982年   2篇
  1981年   1篇
  1980年   1篇
  1979年   1篇
  1977年   1篇
  1976年   1篇
排序方式: 共有1840条查询结果,搜索用时 15 毫秒
101.
"桥头堡"战略的提出,给云南创造了发展的重大机遇,与南亚进行区域旅游合作是推进云南省与南亚各国合作的先导产业。以保山市为例,分析了保山与南亚旅游合作的现状。分析了制约保山与南亚的区域旅游合作的问题,并提出了相应的对策,以期促进中国与南亚的旅游合作。  相似文献   
102.
保山地处东亚、南亚、东南亚的结合点,是西南地区、乃至全国通往以印度为主的南亚国家最便捷、最经济的陆路通商口岸。在滇缅印这条通道中,保山一直是重要的物资集散中心。改革开放30年来,保山经济获得飞速发展,经济实力明显增强。胡锦涛总书记桥头堡战略的提出,让保山明确了今后的发展目标——把保山建设成为面向南亚的区域性商贸中心,促进中国与南亚国家的经贸合作、友好往来。  相似文献   
103.
绍兴八年(1138年)前,南宋政权在选择都城时,朝中大臣的意见主要集中在临安和建康两个地方。在地理位置上,它们都易于控制富庶的江南,经济及交通等因素不是决定两者谁作为都城的首要条件。建康的优势在进取,临安的优势在防守。南宋政权定都临安,除了实力不济与气候因素之外,更重要的是其深刻的文化审美趋向和审美情趣。  相似文献   
104.
The web visibility of politicians has substantial implications for the internet and politics. In this regard, the present paper examines the web visibility of South Korea's 18th National Assembly members. This study identifies those members with the highest web visibility and determines the factors affecting their web visibility by using a set of socio-demographic variables indicating web visibility. The concept of web visibility is operationally defined as the number of web mentions of each congressional member. Web mentions of the name of each congressional member were collected across many platforms, including blogs, images, news, and websites, by using a Naver search tool based on the API, and relationships between the web visibility of the members and their socio-demographic attributes (their gender, age, term, constituency, and party affiliation) were analyzed using Kruskal–Wallis, Median, and Mann–Whitney U tests. The most visible politicians in the Korean webosphere had highly qualified political careers and prominence, and the difference in politicians' web visibility depended on their political attributes (their term, constituency, and party), not on their demographic attributes (their gender and age). These findings suggest that politicians who build political power and influence through their political career in the offline world are likely to be more visible in the webosphere. Further, an integrated indicator based on politicians' web visibility status can reflect their “ubiquitous presence” in Korea's digitalized society.  相似文献   
105.
This paper examines the difficulties encountered by Biowatch, a South African civil society environmental organization, in its attempts to obtain access to government information in respect of genetically engineered plants. After establishing the context of South Africa's access to information regime, including a brief discussion of several of its weaknesses, the paper engages in an extended account of the Biowatch case as an exemplar of some of the more pronounced challenges to the effective implementation of the country's access to information legislation. The elaboration of the case is based on interviews conducted with the Director of Biowatch and counsel from the Legal Resources Centre that aided Biowatch, as well as various internal and court documents provided by Biowatch and its lawyers.  相似文献   
106.
The purpose of this study is to explore the South Korean government's policy objectives for the Broadband Convergence Network (BcN) between 2004 and 2007. The BcN is envisioned as conduit for broadband content and applications. This paper uses generativity as a conceptual framework to determine whether the objectives for the BcN, based on a content analysis of policy documents and interviews with experts, empowered the network to sustain a generative critical information infrastructure. This study is designed to be useful for executives in the private sector, officials in government and academics in university settings who are interested in drawing insights from Korean experience to inform their own work.  相似文献   
107.
In the heterogeneous South African society, race has become not only the major organizing principle, but also the primary unit of social analysis. The concept “intergroup relations” has consequently predominantly been associated with racial relations and “intergroup attitudes” with “interracial attitudes”. Interest in South African race relations has furthermore been enhanced by the tumultuous struggle against apartheid. A substantive body of research acquired during apartheid indeed points to interracial tension. The advent of a new political dispensation in 1994 has been accompanied with expectations that increased intergroup contact, in particular, would result in improved interracial relations. The current study investigates intergroup attitudes after 1994. Three countrywide surveys were conducted in 1998, 2001 and 2009 using representative samples of all major racial groups. The results indicate that overall attitudes were more positive among more affluent and urbanized communities. However, there are indications of prevailing negative relations, in particular between Blacks and Afrikaans-speaking Whites. While the attitudes of Afrikaans-speaking Whites seem to have become more positive, that has not been the case to the same extent for Blacks. Blacks also appear to be less positive towards English-speaking Whites than during apartheid. Overall, the results point to more positive intergroup attitudes in some instances, but also to potential emerging points of tension.  相似文献   
108.
近年来,技术水平评价作为制定研发投入的基础性工作得到世界各国的重视。尤其是韩国科学技术评价院(KISTEP)每两年一次以国家战略技术为对象实施技术水平评价,其评价结果得到广泛认可。考察韩国技术水平评价实施情况,为我国开展技术水平评价工作提供具有操作性的参考。通过网络调研法和案例分析法,从评价实施机构和历程的纵向、横向两方面梳理韩国技术水平评价的实施情况,从评价方法完善视角分析总结韩国技术水平评价方法的实施经验。韩国通过立法保障评价工作定期且长期实施,建立评价结果相关信息的共享平台,加强定性分析与定量分析结合,不断完善评价方法,形成自身特色的技术水平评价体系,有助于我国改进和完善技术水平评价方法,健全技术水平评价体系。  相似文献   
109.
韩国政府机构的各类技术水平评估具有共性特征:目的是评估韩国各领域中长期研发计划中的核心技术,了解与主要竞争对手的技术水平差距并制定有针对性的研发战略,为国家制定中长期研发战略和投入优先顺序提供依据;主要评估对象为美国、欧盟、中国、日本、韩国;评估内容为技术水平、技术差距及其原因等;评估方法主要是德尔菲法和论文/专利分析法。以韩国科学技术评价院为例,其每两年一次对国家战略技术进行技术水平评估,实施体系由运营委员会、评估委员和综合支撑小组构成,采取选定核心专家实行5年任期制,增加活动力、技术力指标和活跃度、吸引力指数等改进措施。研究得到对我国改进和完善技术水平评估方法、健全技术水平评估体系的启示:通过相关立法为技术水平评估、技术预见提供依据和法律保障;定期、长期开展国家层面技术水平评估和监测;关注技术水平前瞻评估和评估方法优化改善;加强定性定量分析相结合以及评估结果信息公开共享等。  相似文献   
110.
晋南地区是我国旱作农业的起源地之一,自古以来便是全国重要的农区。然而,在唐虞早夏时期,伴随着剧烈的社会环境变迁和史前全球性气候事件下当地自然环境的逐步演变,从农业技术选择的角度上来讲,当地先民们,在传统旱作农业依然占主导地位的前提下,局部性地采取了稻作农业技术,使得稻作农业在晋南地区经历了从无到有、并获得进一步发展的过程。  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