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   4104篇
  免费   213篇
  国内免费   77篇
财政金融   108篇
工业经济   361篇
计划管理   870篇
经济学   1021篇
综合类   463篇
运输经济   8篇
旅游经济   34篇
贸易经济   713篇
农业经济   123篇
经济概况   693篇
  2024年   35篇
  2023年   98篇
  2022年   111篇
  2021年   153篇
  2020年   190篇
  2019年   170篇
  2018年   142篇
  2017年   131篇
  2016年   155篇
  2015年   130篇
  2014年   312篇
  2013年   464篇
  2012年   310篇
  2011年   359篇
  2010年   222篇
  2009年   232篇
  2008年   245篇
  2007年   211篇
  2006年   173篇
  2005年   174篇
  2004年   93篇
  2003年   68篇
  2002年   53篇
  2001年   40篇
  2000年   34篇
  1999年   16篇
  1998年   15篇
  1997年   24篇
  1996年   9篇
  1995年   5篇
  1994年   7篇
  1993年   3篇
  1992年   1篇
  1991年   1篇
  1989年   1篇
  1986年   1篇
  1985年   1篇
  1984年   3篇
  1983年   2篇
排序方式: 共有4394条查询结果,搜索用时 31 毫秒
61.
选择部分宏观经济指标和科技投入指标,对1991~2003年间东北地区经济增长与科技投入变化的相关性进行了初步分析,并通过经济增长与科技投入相关性模型的建立,对东北地区未来科技投入的趋势做出判断,在实证分析的基础上,提出东北老工业基地优化科技投入的具体对策建议.  相似文献   
62.
创业研究前沿理论发展动态   总被引:8,自引:0,他引:8  
本文评述并探讨了经济学、社会心理学、社会文化理论、资源观、机会观和社会资本观等对创业研究的贡献、不足以及未来的研究方向。传统经济学理论无法解决创业现象从外部给均衡状态带来的冲击问题,奥地利学派虽然持动态系统观点,却无法模型化。社会心理学视角的创业研究结果相互矛盾,也没有产生多少有见地的观点。社会文化学观点讨论了社会文化环境对形成创业家个性与行为特征的影响,但同样没有取得什么重要的进展。资源观试图将资源观、创业能力和均衡联系在一起,但仍然不能解释创业机敏现象。文章作者认为,机会观点和社会资本观点摈弃均衡分析方法,转而考察创业过程中的创业个体和机会因素,为创业研究建构了一个全新的研究框架。  相似文献   
63.
The shortcomings of the technological literacy metaphor are reviewed. The lack of an agreed meaning for this concept reflects a widespread perplexity about how the study of technology should be incorporated into general education. The paper considers how the study of literature and history might contribute to an understanding of technology and posits a framework which permits the study of the made world to be incorporated within a humanistic educational scheme. It is suggested that the historical study of technologies of literacy could play a significant role in curricular integration.Based on a Plenary Address to the second Domains of Literacy Conference:Literacies for a Productive Future Institute of Education London 1/9/94Michael Barnett has been, since 1992, Professor of Technology and Education at the Institute of Education in London University. Prior to that he was Reader in Physics at Imperial College London. His main scholarly activities are concerned with the history, philosophy and sociology of technology and their bearing on educational practice. He has established an MA programme in Technology and Education which reflects these concerns.  相似文献   
64.
Informational Networks, Entrepreneurial Action and Performance   总被引:1,自引:0,他引:1  
This paper develops a model that incorporates personal and business networks, firm action, and performance based on the existing literature. It explores the links between information and entrepreneurial-type action, and action and performance. Survey data was collected from a sample of 100 manufacturing firms in Thailand. Results show that entrepreneurs value the information they receive from their networks. However, there is little statistical support for tangible links between personal or business networks and entrepreneurial action and performance, or between action and performance.  相似文献   
65.
煤炭运输方式的经济性问题是制定能源产业政策的基本理论问题之一,为此回顾了我国五十年代以来的部分有关研究工作,对不同时期的部分研究实例从研究方法、技术方案和研究结论三个方面进行了对比分析,揭示了不同研究工作在基本原理方面的一致性和技术方案方面的差异性,以及由此造成的研究结论的异同。  相似文献   
66.
Students involved in holistic technological practice need to develop an understanding of technological practice outside the classroom and to participate in tasks set as close as practicable to actual technological practice. This paper investigates the context of assessment and its relationship to achievement and the importance of teacher knowledge to student technological practice. I argue that ‘out of context’ assessment tasks do not give an accurate indication of achievement levels of the children assessed. Introduced is the Model of Student Technological Practice, which identifies four constraints that influence student technological practice. A significant factor is teacher knowledge, as it impacts greatly on the quality of feedback given to students by their teachers. Timely teacher intervention and formative assessment feedback will alter student technological practice and should improve the students’ likelihood of developing successful outcomes.  相似文献   
67.
企业技术创新成功的环境条件分为四个不同的层次和五个不同的维度。由于我国企业环境建设不系统,因此我国企业没有成为技术创新的主体。正确认识我国企业技术创新环境问题是十分必要的。  相似文献   
68.
What do we know about technology and rights? This article provides a fairly comprehensive overview of current issues regarding this topic. We explore and analyse a wide spectrum of rights that are challenged in this current era of technological convergence. We use the United States Bill of Rights as an example of the vulnerability of legal protections for rights against particular political and technological changes in this post 9-11 climate. New streams of rights acting as a safeguard against further incursions of technology into civil liberties are explored. We also address intellectual property rights and international trends in copyright, patent and trademark laws. We question whether these issues of technology and rights have a place in current technological literacy scenarios.  相似文献   
69.
Following a review of current research in children's learning in technology education, and an examination of the kinds of knowledge demanded in contemporary technology education programs in elementary schools, I argue that what is needed in early technology education programs is the scaffolding of what I am calling technological stance. This construct acknowledges the socio-cultural character of technology as a human endeavor. In contrast to programs which are oriented to application of conceptual and procedural knowledge or to programs in which knowledge is generated through interpretation of interactions with materials and tools, programs which support technological stance position learners as critical inquirers into both tool-related and discursive practices of technology.  相似文献   
70.
在建筑工程施工新技术推广与应用现状宏观分析的基础上,以“2004年建设部科技示范工程项目”大连开发区文化中心施工新技术应用与推广为实例,分析了如何结合工程实际采用新技术来提高工程科技含量、保证工程质量,并提出了一些措施和对策。  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