中国物流业经济增长质量实证研究——基于绿色全要素生产率视角

基于2005~2013年中国物流产业省际面板数据和资源因素约束条件,采用GML指数方法,对物流业绿色全要素生产率增长的驱动源泉、时序变化和空间分布进行实证分析,并判别了技术创新者。研究结果表明:物流业绿色全要素生产率年均增长0.5%,远低于传统增长速率6.5%;技术进步是推动绿色全要素生产率增长的主要动力,但动力不足;各地区物流业绿色全要素生产率增长的空间差异较大;技术创新者大多分布在东部地区。最后,提出了提升物流业经济增长质量的若干对策建议。     

Troponin T and Heart Type Fatty Acid Binding Protein (h-Fabp) as Biomarkers in Patients Presenting with Chest Pain

Acute coronary syndrome (ACS) is a term for a range of clinical signs and symptoms suggestive of myocardial ischemia. It results in functional and structural changes and ultimately releasing protein from injured cardiomyocytes. These cardiac markers play a major role in diagnosis and prognosis of ACS. This study aims to assess the efficacy of heart type fatty acid binding protein (h-FABP) as a marker for ACS along with the routinely used hs-TropT. In our observational study, plasma h-FABP (cut-off 6.32 ng/ml) and routinely done hs-Trop T (cutoff 0.1 and 0.014 ng/ml) were estimated by immunometric laboratory assays in 88 patients with acute chest pain. Based on the clinical and laboratory test findings the patients were grouped into ACS (n = 41) and non-ACS (n = 47). The diagnostic sensitivity, specificity, NPV, PPV and ROC curve at 95 % CI were determined. Sensitivity of hs-TropT (0.1 ng/ml), hs-TropT (0.014 ng/ml) and h-FABP were 53, 86 and 78 % respectively and specificity for the same were 98, 73 and 70 % respectively. Sensitivity, specificity and NPV calculated for a cut-off combination of hs-TropT 0.014 ng/ml and h-FABP was 100, 51 and 100 % respectively. These results were substantiated by ROC analysis. Measurement of plasma h-FABP and hs-TropT together on admission appears to be more precise predictor of ACS rather than either hs-Trop T or h-FABP.     

西北干旱区地表水与地下水资源转换的几个问题探讨

从山区至平原，地表水与地下水之间在不同地质地貌单元相互转换，是我国西北干旱区山前平原水资源的主要特点，直接影响到水资源开发利用模式的变化。随着和水利用率不断提高，减少了地下水补给来源，引起地下水位下降，泉水量削减，甚至枯竭，迫使泉灌区边城井灌。这在水资源西藏高原、森林资源、持续发展     

基于网络的制药企业绩效研究

基于网络的资源已成企业构建竞争优势的重要组成部分。本文基于企业资源理论和网络理论,对中国沪、深两地上市的81家制药企业的研发网络与企业绩效关系进行了实证分析。研究表明,企业网络规模以及企业网络中的异质性资源均对企业绩效产生了正面影响。本研究结论还证实了习得能力是企业网络资源向企业绩效转化的中间机制。     

Urinary iodine levels in three ecological zones of Bangladesh

Urinary iodine levels in children (5–11 years) and in adult males and females (15–44 years) of three ecological zones (hilly, flood-prone and plains) of Bangladesh were analyzed to determine the status of biochemical iodine deficiency in the country. Data indicated that a large majority of the population all over Bangladesh have biochemical iodine deficiency urinary iodine excretion (UIE) less than the accepted cut-off level of 10 μg/dl. Adults were deficient to comparable degrees, 31.3% severely iodine deficient. The flood-prone zone was less affected: 71.7% children had iodine deficiency and 25% were severely deficient. Adults of this zone were less affected than the children. Iodine deficiency was least severe in the plain zone: 59.8% children were biochemically iodine deficient and of them 23.4% had UIE less than 2.0 μg/dl. In the case of the adults of this zone, 60.8% were biochemically iodine deficient and 20.6% had severe iodine deficiency. The results indicate that Bangladesh as a whole is an iodine deficient region, with the hilly zone being the most severely affected. Children were slightly more affected than the adults, and females were more affected than the males.     

技术战略对创新绩效的影响:基于资源结构视角的案例分析

在企业技术战略转型的过程中,研发资源的投入不断增加,因此如何有效地配置研发资源也成为重要的议题。从"战略-结构-绩效"范式的角度出发,以三一重工为例进行个案研究,对企业技术战略与研发资源配置结构、创新绩效的关系进行研究,结果表明研发资源配置结构会随着技术战略的变化而调整,并影响创新绩效。研究结果发展了"战略-结构-绩效"范式在技术管理领域的理论研究,为技术战略升级的资源优化配置提供理论依据。     

OpenURL框架结构分析

OpenURL作为一种开放式链接框架结构，与传统信息链接框架相比，增加了许多新的功能，成为信息资源整合的重要工具，受到图书情报界的密切关注，也将被美国全国信息标准组织(NISO)所接收。本文在分析OpenURL框架结构和运行机制的基础上，讨论其在信息资源整合中的使用。     

企业知识管理平台——知识资源计划(KRP)的研究

文章分析了企业资源计划(ERP)的发展过程,指出企业知识资源是提高现代企业的核心竞争力的核心资源。由此提出企业知识资源计划(KRP)的概念,并讨论了企业KRP的实施将会给企业带来全面提升。作为KRP应用的一个实例,对其在企业业务过程管理中的应用进行了分析和研究。     

并购背景下企业资源的分类与转移

本文以企业资源理论为基础，根据转移的难易程度和对协同的贡献，建立了一个企业资源的详细分类图。对资源转移效率衡量的总体框架进行了论述，并概述了各类资源的转移效率。最后，采用层次分析法和模糊数学的方法建立模糊综合评价模型，为并购中系统分析和综合评价目标企业的资源转移提供了一种科学实用的定量方法。     

基于集对分析的城市生态足迹预测——以武汉市为例

自然生态环境是城市生态系统赖以生存和发展的重要物质基础，生态足迹作为生态环境承载状态测度的指标，受到社会、经济、人口等多种因素的影响，表现出时空动态性和不确定性特征。鉴于集对分析(SPA)在处理不确定性问题的优势，以武汉市为研究对象，将城市总生态足迹与其相关影响因子联系起来考虑，融合集对分析中的同异反模式识别的“择近原则”和聚类分析思想构造集对分析动态模型，模型精度较高，验证误差均小于0.3%。并对武汉市2005年～2020年总生态足迹发展趋势进行了预测。研究结果表明，2005年～2020年总生态足迹将由1 784.662×10⁴hm²增长到2 781.388×10⁴hm²，呈现出低于GDP、高于能源利用率增长速率的趋势，生态环境将进一步恶化，对此就武汉市生态系统的发展提出了对策与建议。最后，指出SPA动态模型对城市生态系统中生态足迹动态化方法的修正具有理论和实际意义。