高新区创新模式与创新网络边界界定

近年来,国内外学者对高新区创新模式都有深入论述,主要从高新技术企业自主创新;产业链生态化及产业链之间的合作竞争;产业链转变,建立以产业链衔接的高新技术企业集团;从产业集群到集群创新;创新网络构建;全球价值链等方面进行论述。在各创新发展模式综述基础上笔者试图探讨各模式之间的相互联系,藉此确定创新网络边界。对不同发展阶段的不同模式采用相应的评价模型及网络边界的评价模型。     

中国欠发达地区农村基础设施建设的战略调整与产业化扶贫

农村基础设施建设改革,是当前中国农村经济体制改革的根本问题,也是欠发达地区经济社会发展的重大问题。现阶段,中国欠发达地区农村基础设施建设普遍存在相关规制的缺位,严重制约了欠发迭地区农业现代化的进程。中国欠发达地区的农村基础设施建设普遍具有地域性特征。贵州、四川等欠发达地区的改革实践,已经探索建立了中国欠发达地区农村基础设施建设的多种范式。政府应注重实施产业化扶贫战略,统一规划,建立健全相关法律法规,维护农村村民的合法权益。     

基于案例学习的知识管理系统

简单了介绍知识管理的特点以及知识管理系统具有的功能,说明将基于案例的推理技术(CBR)和其它机器学习技术结合起来应用于知识管理系统的必要性和有效性,并在此基础上提出一种基于案例学习的知识管理系统的实现框架。     

关于后发优势与中国中部地区工业化的思考

拟从后发优势的视角,在分析我国中部地区工业化水平现状的基础上,对中部地区加快工业化进程、实现中部崛起进行了思考与探索。认为要加快工业化进程、实现中部地区的崛起,必须充分发挥后发优势,以大开放为主线,以培育和提高学习能力为核心,以加强技术创新为着力点,以加快改革和制度创新为动力,坚定不移地走新型工业化道路。     

Does Medical Equipment Expansion Lead to More Diagnostic Services? Evidence from China’s Sichuan Province

A major goal of China’s healthcare reform is to control the increasing healthcare spending, much of which can be attributed to the overuse of diagnostic tests and has been relatively less studied in the literature. This article analyzes the correlation between medical equipment expansion and the increase in diagnostic test expenditure in China, using Sichuan Province as an example. County-level data aggregated from hospitals’ annual reports in Sichuan Province from 2008 to 2012 were used. The results show a positive correlation between the expansion of medical equipment and the increase in diagnostic test expenditure. Our study provides implications on reforming China’s healthcare delivery system and medical equipment regulation policies.     

传统能源及碳交易价格与新能源股价——基于VAR和CAPM-GARCH模型的分析

文章构建VAR模型和CAPM-GARCH模型,分析检验了2010年7月初至2013年底期间传统能源和碳排放权交易价格对国内新能源上市公司股价波动的影响及新能源股票收益率的波动特点,研究发现:国内煤价对新能源公司股价有显著的正向影响,而国际油价的影响不显著;碳排放权交易价格也是引起新能源投资价值从而上市公司股价变动的重要因素;新能源公司股价指数对高科技股价指数并不敏感,反映出国内新能源上市公司科技含量不足,资本市场关注更多的是新能源的概念而非技术优势;国内新能源股票整体的系统风险在1.125~1.131之间,利好消息比利空消息能引起新能源股票收益率更大的波动。     

Cost-effectiveness analysis of ramucirumab treatment for patients with hepatocellular carcinoma who progressed on sorafenib with α-fetoprotein concentrations of at least 400 ng/ml

Abstract

Objective: This study aimed to compare the cost-effectiveness of ramucirumab versus placebo for patients with hepatocellular carcinoma who progressed on sorafenib with α-fetoprotein concentrations (AFP) of at least 400?ng/ml in the United States.

Methods: A Markov model was constructed to assess the cost-effectiveness of ramucirumab. Health outcomes were measured as quality-adjusted life years (QALYs). With TreeAge software, the disease process was modeled as three health states: progression-free survival (PFS), progressive disease (PD), and death. Costs were extracted from the REACH-2 trial, and utility was derived from published literature. Incremental cost-effectiveness ratios (ICERs) were calculated to compare ramucirumab with placebo. Probabilistic sensitivity analyses were developed to examine the robustness of the results.

Results: In the base case analysis, ramucirumab therapy had a cost of $55,508.41 and generated 0.54 QALYs, while placebo therapy had a cost of $761.09 and generated 0.47 QALYs, leading to an additional $54,747.32 in costs and 0.07 QALYs. The ICER was $782,104.57 per QALY, which was much higher than the willingness-to-pay threshold of $100,000 per QALY. According to sensitivity analyses, the utility of PD in the two groups was the dominant parameter influencing the ICER.

Conclusion: Although ramucirumab was associated with prolonged survival for patients with advanced hepatocellular carcinoma who progressed on sorafenib treatment with an AFP of at least 400?ng/ml, it is not a cost-effective treatment from a United States payer perspective.     

我国信息产业与经济增长的协整分析

本文运用协整理论的EG两步法、格兰杰因果检验,以及回归估计方法对我国信息产业与经济增长关系进行了深入分析。研究发现我国信息产业与经济增长有长期稳定的均衡关系,信息产业对我国经济增长有显著的促进作用,而经济增长对拉动信息产业的作用在中期(2～4年)内有一定效果,在短期(1年)和长期(5年及以上)内则并不显著,并针对这些结论提出相关政策和发展建议。     

一种有限元并行共轭梯度算法在计算力学中的应用

本文以POSSION方程为研究背景,实现了有限元的并行计算.通过对定解区域进行特殊的划分,达到了不需合成结构刚度矩阵的目的,并在此基础上应用线性方程组的共轭梯度法,使计算的并行性得到了很好的拓展,实现了从网格划分、刚度矩阵的合成到方程求解的并行执行.并将该算法应用在计算力学中.程序在西北工业大学高性能计算中心的HPRX2600上进行了数值实验,结果表明,该方法具有良好的加速比.     

浅谈会计电算化与应用

二十一世纪中国经济的全面崛起,将使中国完全可能成为新兴的世界强国,"中国崛起"已经无可争议地成为了当今全球的主题.很多大企业甚至不那么大的企业都真正走出去,在世界各地做自己的生意,在世界各地都有自己的管理者、自己的股东、供应商和客户,他们真正成为了全球化的企业.各种现代化手段广泛应用于企业管理和经营中,不但节省了资源,还达到了事半功倍的效果.本丈通过对企业会计电算化的介绍,分析和阐述了会计电算化的特点作用以及一些现代化的管理软件在会计电算化中的应用.