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   9224篇
  免费   376篇
  国内免费   239篇
财政金融   296篇
工业经济   546篇
计划管理   2211篇
经济学   1818篇
综合类   1387篇
运输经济   48篇
旅游经济   198篇
贸易经济   1132篇
农业经济   936篇
经济概况   1267篇
  2024年   35篇
  2023年   112篇
  2022年   120篇
  2021年   215篇
  2020年   267篇
  2019年   227篇
  2018年   193篇
  2017年   243篇
  2016年   234篇
  2015年   261篇
  2014年   501篇
  2013年   1002篇
  2012年   688篇
  2011年   752篇
  2010年   586篇
  2009年   580篇
  2008年   702篇
  2007年   682篇
  2006年   663篇
  2005年   542篇
  2004年   362篇
  2003年   278篇
  2002年   167篇
  2001年   162篇
  2000年   97篇
  1999年   52篇
  1998年   24篇
  1997年   18篇
  1996年   28篇
  1995年   9篇
  1994年   3篇
  1993年   12篇
  1992年   5篇
  1991年   2篇
  1990年   2篇
  1989年   3篇
  1985年   2篇
  1984年   3篇
  1983年   1篇
  1981年   3篇
  1980年   1篇
排序方式: 共有9839条查询结果,搜索用时 937 毫秒
211.
资本原则作为现代社会的本质性原则,在马克思主义研究当中已经成为基本的共识,而马克思资本批判的核心就是揭示资本原则对人的统治.本文结合对历史和现实的观察和反思,回到马克思资本批判的历史境域之中,阐释马克思在资本批判中揭示的人的现代性处境、本质和人作为人全面实现和发展自己的现实条件.从根本上清理人学研究中的抽象性倾向,建立入学研究的历史唯物主义地基,并从研究范式上进行必要的转换.  相似文献   
212.
孔子虽然没有像孟子和苟子等人一样明确地提出人性论,但是却有许多直接和间接关于人性的论述。孔子的人性论从人情出发,对人性的弱点有着独到的观察,注重人性的经验论考察,充满人性关怀。孔子的人性论对当今社会治理仍有积极的借鉴意义。  相似文献   
213.
结合生产要素六元理论,对园林绿化项目资源进行界定;以作业过程为信息关联节点,通过施工工序分解和资源特征匹配,构造园林绿化项目的“产出-作业”分配关系描述矩阵和“作业-资源”消耗关系描述矩阵。XX科技园林绿化企业的应用结果表明,项目资源清单模型解决了目前园林绿化企业资源信息分离使用的现状,是企业快速构建项目资源计划表、项目施工方案以及快速估算项目成本等的基础数据信息。  相似文献   
214.
In the 1990s, the Democratic People’s Republic of Korea (North Korea) suffered from severe food shortages and large-scale deforestation, which triggered a stage of rural conservation reform. Since 2004, with support from the Swiss Agency for Development and Cooperation (SDC), North Korea’s Ministry of Land and Environmental Protection (MoLEP) has implemented a Sloping Land Management Program (SLMP). The SLMP established sloping land user groups and granted these groups the right to use marginal land for agroforestry development. This devolution of land rights from state control onto local groups is a landmark in North Korea, and this decentralization initiative has now expanded to over eight counties to involve thousands of households. It has also led to the launch of a National Agroforestry Policy and Strategy. Drawing from both qualitative and quantitative data collected from 2008 to 2014, this paper documents the process and effects of the SLMP. It argues that the decentralization reform in land management has contributed to not only food security with increased food crop diversity and productivity, but also notably forest recovery through an expansion of tree plantations and agroforestry practices on degraded sloping lands. However, an insufficient power transfer in the form of a lack of timber rights granted to the local user groups has hampered the effectiveness of the SLMP. There are also institutional and geopolitical challenges that are limiting further scaling-up of land-use decentralization across the country. The policy implication calls for more international investment as well as national land-use policy reforms in order to promote and facilitate further decentralization of sloping land management and to secure greater use rights for sloping land user groups.  相似文献   
215.
Scholars and policymakers interested in the growth and prosperity of regions have long recognized that talent and knowledge are fundamental. Yet the question is what types of talent are needed in a growing twenty‐first‐century economy: human capital, creativity and innovation, or entrepreneurship? The latter we define broadly to include any type of risk taking, and not only radical innovation. The literature does not clearly point to one factor as being the most essential. This study assesses this question separately for rural and urban United States (US) counties. We find that human capital––measured by educational attainment––is considerably more conducive to employment growth than the share of creative occupations. Likewise, the share of small and medium businesses is also very conducive to local growth, although this does not apply to the self‐employment share. Rural and urban areas experience similar patterns, although the magnitude thereof tends to be larger for urban counties, whereas high‐technology employment share has had a positive effect in rural areas. Policy conclusions suggest that enhancing small business development and increasing educational attainment are the two strategies that are most likely to succeed.  相似文献   
216.
Building on the resource‐based view (RBV) and competitive dynamics literatures, this paper proposes that considering resources or actions independently offers an incomplete understanding of the drivers of superior performance. Instead, we hypothesize that resources enable competitive actions and that when these actions leverage the firm's resources, superior performance results. We tested these hypotheses with panelized data on the technological resources and competitive actions of firms in the in‐vitro medical diagnostic substance manufacturing industry. The results provide substantial support for our hypotheses, specifically with respect to mediation. Our theory and results underscore how the integration of the competitive dynamics and RBV literatures can significantly improve our understanding of firm performance. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
217.
常达 《开放时代》2020,(2):63-74
传统儒家从未停止对事物根源与本质的探索。所谓"物有本末,事有终始","始"之字义常常兼具逻辑上的原初性与价值上的根本性。始祖作为生民存续之始和人道的开端,其形象隐含着重要的理论意义,更关联着儒家思想与制度的核心。本文分别从感生之祖、始封之祖、生民之祖三种形态出发,追溯始祖形象的特点,并试图通过这一讨论来理解儒家家国建构的不同模式及其基础。  相似文献   
218.
本文通过空间拓展卢卡斯(Lucas)模型的生产函数,讨论了区域关联视角下人力资本与地区经济发展的互动关系。主要结论为:(1)相同劳动力在人力资本总量更高的地区享有更高的收入;(2)人力资本总量的增加能提高地区实际产出,而其均量的提高能提升地区产出潜力;(3)综合考虑辐射效应和转移费用,经济高地的人力资本转出会优先惠及邻近地区。空间计量的实证还表明,人力资本对地区经济增长的区域间交叉影响正在加强,且其均量而非总量是造成地区间经济差异的主因。  相似文献   
219.
The financial and economic crisis of 2008 and 2009 took a heavy toll on the South African economy. The economy contracted for the first time since 1998 and entered recession during the fourth quarter of 2008. The gross domestic product contraction was soon transmitted to the labour market. Between the second quarters of 2008 and 2009, employment fell by 3.8%. However, not all individuals were hit with the same intensity. Using panel data from a quarterly labour force survey unique in the African context, we find that human capital (i.e. education as years of schooling and workforce experience) provided a buffer against the shock. After controlling for observable characteristics, education and experience showed the potential to entirely offset the effect of the recession on the likelihood of employment. This has important policy implications, as it strengthens the case for strategic investments in human capital and helps identify the unskilled as having the greatest need for social safety net interventions during a recession.  相似文献   
220.
Objective:

To define the in-hospital and 6-month post-discharge resource use, following Transcatheter Aortic Valve Implantation (TAVI) and conventional Aortic Valve Replacement (AVR) surgery within a single UK hospital.

Methods:

A local service evaluation of patients undergoing TAVI or AVR between January 2011 and May 2012 captured data until 6-months post-procedure, collected from hospital records and via a General Practitioner questionnaire. The main end-points were mortality, time in ITU/HDU, hospital length of stay (LoS), discharge destination, re-admission, and post-discharge primary/secondary care resource use. Sub-group analyses were performed for AVR patients aged ≥80 (AVR?≥?80) and with EuroSCORE of ≥10 (AVR ES?≥?10) to allow more direct comparison with ‘TAVI type’ patients.

Results:

Results are given as means (standard deviation) for TAVI (n?=?51), AVR (n?=?188), AVR?≥?80 (n?=?48), and AVR ES?≥?10 (n?=?47), respectively, unless otherwise stated. Age in years was 83.0 (8.1), 71.2 (13.1), 84.1 (2.7), 79.4 (7.1); EuroSCORE was 24.7 (11.9), 8.1 (6.4), 12.0 (6.0), and 16.5 (6.6); post-operative LoS (days) was 11.5 (11.2), 10.9 (10.8), 14.3 (16.7), and 15.2 (17.7). For discharged patients, 0%, 7%, 13%, and 9% had unplanned cardiac-related re-admissions within 30-days of discharge. Time to first readmission was 74.6 (34.0), 35.0 (34.2), 20.8 (9.7), and 22.6 (14.3) days.

Limitations:

This was a single-center retrospective evaluation, not prospectively powered to confirm differences in outcomes.

Conclusions:

Despite TAVI being performed in an older, higher risk population, LoS was similar to AVR. Most strikingly there were no cardiac-related re-admissions within 30-days for TAVI and time to first re-admission was significantly longer. This evaluation suggests that TAVI is clinically appropriate and provides economic advantages in both the hospital and post-discharge setting in this high risk group. Many patients undergoing TAVI are considered unfit for surgery and, hence, TAVI offers a treatment that delivers similar results to traditional AVR without the high risk associated with surgery.  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