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   1646篇
  免费   133篇
  国内免费   5篇
财政金融   288篇
工业经济   61篇
计划管理   343篇
经济学   539篇
综合类   49篇
运输经济   14篇
旅游经济   7篇
贸易经济   165篇
农业经济   132篇
经济概况   185篇
信息产业经济   1篇
  2024年   1篇
  2023年   21篇
  2022年   16篇
  2021年   24篇
  2020年   54篇
  2019年   72篇
  2018年   35篇
  2017年   71篇
  2016年   50篇
  2015年   58篇
  2014年   101篇
  2013年   157篇
  2012年   133篇
  2011年   206篇
  2010年   120篇
  2009年   114篇
  2008年   113篇
  2007年   92篇
  2006年   76篇
  2005年   71篇
  2004年   45篇
  2003年   38篇
  2002年   16篇
  2001年   9篇
  2000年   18篇
  1999年   10篇
  1998年   3篇
  1997年   8篇
  1996年   11篇
  1994年   5篇
  1988年   1篇
  1987年   1篇
  1985年   6篇
  1984年   12篇
  1983年   5篇
  1982年   4篇
  1981年   2篇
  1980年   3篇
  1979年   1篇
  1976年   1篇
排序方式: 共有1784条查询结果,搜索用时 15 毫秒
71.
Objective: To assess the cost-effectiveness of exenatide 2?mg once-weekly (EQW) compared to dulaglutide 1.5?mg QW, liraglutide 1.2?mg and 1.8?mg once-daily (QD), and lixisenatide 20?μg QD for the treatment of adult patients with type 2 diabetes mellitus (T2DM) not adequately controlled on metformin.

Methods: The Cardiff Diabetes Model was applied to evaluate cost-effectiveness, with treatment effects sourced from a network meta-analysis. Quality-adjusted life years (QALYs) were calculated with health-state utilities applied to T2DM-related complications, weight changes, hypoglycemia, and nausea. Costs (GBP £) included drug treatment, T2DM-related complications, severe hypoglycemia, nausea, and treatment discontinuation due to adverse events. A 40-year time horizon was used.

Results: In all base-case comparisons, EQW was associated with a QALY gain per patient; 0.046 vs dulaglutide 1.5?mg; 0.102 vs liraglutide 1.2?mg; 0.043 vs liraglutide 1.8?mg; and 0.074 vs lixisenatide 20?μg. Cost per patient was lower for EQW than for liraglutide 1.8?mg (?£2,085); therefore, EQW dominated liraglutide 1.8?mg. The cost difference per patient between EQW and dulaglutide 1.5?mg, EQW and liraglutide 1.2?mg, and EQW and lixisenatide 20?μg was £27, £103, and £738, respectively. Cost per QALY gained with EQW vs dulaglutide 1.5?mg, EQW vs liraglutide 1.2?mg, and EQW vs lixisenatide 20?μg was £596, £1,004, and £10,002, respectively. In the probabilistic sensitivity analysis, the probability that EQW is cost-effective ranged from 76–99%.

Conclusion: Results suggest that exenatide 2?mg once-weekly is cost-effective over a lifetime horizon compared to dulaglutide 1.5?mg QW, liraglutide 1.2?mg QD, liraglutide 1.8?mg QD, and lixisenatide 20?μg QD for the treatment of T2DM in adults not adequately controlled on metformin alone.  相似文献   
72.
随着跨国公共卫生安全在全球治理中分量日益加重,流行病应急响应(Epidemic preparedness and response)的国际合作逐步被提上了全球日程。2005年,人感染高致病性禽流感在全球范围内的大规模传播,国际社会尤其是联合国领导下的相关组织如何构建防疫机制来应对这一形势成为焦点。经过多年的努力,联合国领导下的禽流感防疫机制日臻完善,该机制主要包括核心领导机构、法理基础、重要应急措施以及相关国际行为体参与4个方面。同时,该机制的有效性与局限性并存,值得引起人们的注意。  相似文献   
73.
A partir de datos del Panel de Hogares de la Unión Europea (PHOGUE) sobre Austria, Espa1;a, Grecia, Irlanda, Italia y Portugal de 1995–2001 se examina la influencia de la discapacidad en el absentismo laboral utilizando tres variables: el estado de salud autoevaluado, el número de visitas al médico y el número de noches de ingreso en hospital. Según los resultados, el absentismo entre los trabajadores con discapacidad es mayor. La gravedad de la discapacidad también tiene influencia. El efecto total de la discapacidad en el absentismo representa un incremento marginal de entre 6 y 26 días de ausencia al a1;o (dependiendo del país).  相似文献   
74.
We consider the effect of population age distribution in inclusive wealth accounting. Numerical results demonstrate that the wealth of nations with an aging demographic structure, as well as those with a rapidly increasing working-age generation, may have been overestimated.  相似文献   
75.
This paper analyses the extent to which the level of bank competition influences monetary policy transmission. Using a large panel dataset of 978 banks from 55 countries, and employing the Lerner index model as a measure of market structure, our results show that an increase in banking sector competition weakens the effectiveness of monetary policy on bank lending. The findings are robust to a broad array of sensitivity checks including control of alternative measurements of the Lerner index, different samples and different methodological specifications. By extension, these results have important policy implications for regulators in assessing the effectiveness of monetary policy transmission mechanisms.  相似文献   
76.
This study was examined the new money generated from Formula One Grand Prix (F1) and the economic impacts of this new money on the host economy using input–output analysis. We find that the impact of the new money from non-local attendees or international attendees is more pronounced compared to that from local attendees. Also, F1 event appears to influence on sports-related industry as well as other industries such as manufacturing industry. Our findings suggest that the host cities should focus on increasing the non-local and international attendees in order to enhance the economic impacts of a sport event.  相似文献   
77.
This paper proposes an empirical analysis to provide new insight into the trade diversion effects of antidumping (AD) policy. Trade diversion is the shift in trade from named countries in an AD investigation to non-named countries. Previous studies have concluded that AD action causes a considerable drop in exports from named countries, however the extent to which trade is diverted to non-named countries is still an open debate. This paper examines to see whether AD action on named countries can have signaling effects on non-named countries. To examine the trade effects on non-named countries, a time series data at an 8-digit product level is constructed for all cases initiated between 1997 and 2003 in the European Union. The paper provides evidence that antidumping policy has signaling effects on non-named imports.  相似文献   
78.
This article explores the use of alternative payment mechanisms to overcome the holdout problem when multiple parcels of land must be acquired to complete a real‐estate development project. Purchase offers contingent upon successful land aggregation are compared to combination offers containing both guaranteed and contingent payments to determine which approach better mitigates holdout. The distribution of gains between developers and landowners is also examined. The results of a series of economic experiments suggest that contingent offers expedite land aggregation but developer payoffs are higher when combination offers are used. The results offer insight to real‐estate developers participating in land aggregation and inform government entities considering the necessity of public‐sector intervention in real‐estate markets to encourage desired development projects.  相似文献   
79.
推行工学结合,加大高职大学生实习的力度,是贯彻国家教育方针、路线、政策的重要举措之一。常州机电职业技术学院实施“2+1”工学结合工作站管理学生的顶岗实习,即承担三年制高职最后“1”的教学、教育、管理,作为一种模式,是一种探索,也是一种创新。  相似文献   
80.
钛合金已经广泛应用于航空航天、医疗等领域,近年钛合金管道也迅速发展。钛合金的应用离不开机械加工,尤其是精加工磨削。针对钛合金导热性差,粘性大的特点,进行了TA1钛合金的磨削加工测温实验,得到了合理的磨削加工工艺参数。  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