广西苦苣苔科一新属——方鼎苣苔属

报道了在中国广西发现的苦苣苔科一新属即方鼎苣苔属Paralagarosolen Y. G. Wei 和一新种方鼎苣苔P. fangianum Y. G. Wei。方鼎苣苔属与细筒苣苔属Lagarosolen W. T. Wang近缘，它们的共同特征是花筒细筒状，不肿胀，柱头2；不同点是方鼎苣苔属叶基部有时盾状，聚伞花序具1朵花，花冠裂片顶端圆钝，蒴果宽卵状椭圆球形。     

移动通信发展政策的国际比较及启示

移动通信行业具有强烈的网络外部性。网络外部性导致了技术竞争的均衡结果可能不是最优的。在移动通信发展过程中,技术标准的竞争是现代移动通信业竞争的最重要方面。在这样的环境下,各国政府都把技术标准化政策作为产业发展和行业管制,以及提高国际竞争力的重要内容。美国、欧洲联盟国家、日本和韩国在移动通信发展过程中在标准化战略和政策上存在很大差异,因而产生了不同的经济绩效。本文通过全球主流技术标准的形成及其影响因素的分析,从不同发展模式的经验教训中得到启示,提出我国在移动通信3G发展战略上的政策建议。     

益阳方言知章组舒声、蟹摄一二等今读的语音层次分析

本文主要通过文白异读来初步分析益阳方言知章组舒声字和蟹摄一二等字读音的层次,其中知章组舒声字和蟹摄字一二等字的今读音都分别体现了三个语音层次。     

全球创新指数视阈下中国创新能力比较分析

在全球创新指数(GII)的视阈下,梳理GII指标框架和GII研究方法,收集整理并加工研究数据,重点就我国的创新能力与英国、美国、新加坡、日本以及印度、巴西、南非、俄罗斯作比较分析。研究表明,我国创新能力得到了持续提升,也存在创新投入不足和创新产出质量不高且结构失衡的问题。针对成绩,保持优势;针对突出问题,提出以测促创、加大创新投入、提升创新产出质量三大具体建议。     

G2C行政伦理绩效评估的问题及其应对策略

在分析G2C行政伦理对公共行政价值以及中国行政体制改革的重要意义的基础上,梳理G2C行政伦理及其绩效评估的现状,归纳总结了现行G2C行政伦理绩效评估存在的问题与不足,提出了完善G2C行政伦理绩效评估的策略。     

3G技术下手机数字图书馆的服务与发展

随着3G网络技术的不断发展,网络覆盖面积越来越广,已经突破了传统2G网络技术下手机数字图书馆的服务限制,依靠智能手机等良好的终端设备,我国手机数字图书馆的服务已经由传统的短信服务和WAP服务模式向基于3G技术的创新服务模式转变。     

丹瓜方对转基因糖尿病小鼠心脏损伤的作用

探讨丹瓜方对转基因糖尿病小鼠心脏组织的影响。32只ApoE-/-小鼠数字随机等分为模型组、丹瓜方组、联合用药组(丹瓜方+吡格列酮)、吡格列酮组。喂以普通饲料,各组分别给药12周。小鼠处死,取心脏、匀浆,免疫组化测心脏血清反应因子(SRF)含量;解剖冠状动脉,光镜观察比较。结果:与模型组比较,联合用药组与丹瓜方组SRF阳性率降低有显著性差异(P<0.01);形态学观察,丹瓜方组与联合用药组冠状动脉内膜大部分无增厚。结果表明:丹瓜方对糖尿病小鼠心脏具有保护作用。     

Outside directors on the board and innovative firm performance

We investigate how outside directors on supervisory boards influence innovative activities of the firms they advise and monitor. Based on panel data on the largest German companies, the econometric analysis shows a positive influence of external executives on innovative firm performance, measured by patent applications. Differentiating between outside directors from innovative and non-innovative companies reveals that only outside directors from innovative firms increase patenting activities at the firms they advise and monitor. This effect increases with the technological proximity between the appointing firm and the outsider's home firm. Outside directors from non-innovative firms are negatively associated with the appointing firm's innovativeness. The results indicate that external executives with an appropriate professional background can provide valuable specific knowledge and expertise to the board.     

Family firms and R&D behavior – New evidence from a large-scale survey

This paper analyzes how founders and their families influence R&D intensity. Information on R&D comes from a large-scale, bi-annual survey among listed German firms. We find that R&D intensity is higher in firms that are actively managed by the family. The impact of family control (via voting rights) is negative, but mostly not significant. While this negative family control effect is in line with hitherto existing literature, the positive impact of family management is surprising. Indeed, this positive effect disappears if we follow previous research and use R&D information from financial statements. We show that this puzzling result is related to corporate opacity. Opaque family managed firms report too conservative R&D expenditures, especially if they face financial constraints. This leads to an under-estimation of R&D intensity in these firms if accounting figures are used.