全方位推进企业标准化

本文对如何全方位推进企业标准化工作、不断务实标准化工作平台,从而提高企业的核心竞争力进行了阐述和探讨。     

风险社会和移动互联网时代的舆情表达与政府回应

风险社会和移动互联网时代的舆情表达体现出许多新特征,尚未完全适应此种变化的政府回应时不时地陷入困境。只有通过理顺政府内部关系、健全信息公开制度、引导社会力量参与等,才能有效解决政府回应困境,建构政府与民众之间的良性互动关系。     

一种基于极大熵准则DEA的区域科技投入效率评价方法:以广东专业镇为例

提出一种新的基于极大熵准则(MEC,Maximum Entropy Criterion)的三阶段DEA模型,尝试部分减少环境变量和随机因素的影响,并将该模型应用到广东省专业镇的科技投入效率评价。实证分析结果表明,规模效率和纯技术效率对专业镇科技投入效率的整体提升具有显著影响,但是广东省专业镇科技投入的综合技术效率水平偏低,不同地市专业镇的科技投入效率的差异性较大,珠三角和粤东地区相对较好,粤西和粤北地区在科技资源配置方面则显得较为粗放,存在一定的冗余现象。分析结果还表明广东省专业镇的科技投入效率受到地区经济发展水平、劳动者素质、政府政策支持的多个环境变量和随机因素的影响,面向专业镇科技创新的相关政策和制度建设有一定的改进和提升的空间。     

Incremental cue phrase learning and bootstrapping method for causality extraction using cue phrase and word pair probabilities

This work aims to extract possible causal relations that exist between noun phrases. Some causal relations are manifested by lexical patterns like causal verbs and their sub-categorization. We use lexical patterns as a filter to find causality candidates and we transfer the causality extraction problem to the binary classification. To solve the problem, we introduce probabilities for word pair and concept pair that could be part of causal noun phrase pairs. We also use the cue phrase probability that could be a causality pattern. These probabilities are learned from the raw corpus in an unsupervised manner. With this probabilistic model, we increase both precision and recall. Our causality extraction shows an F-score of 77.37%, which is an improvement of 21.14 percentage points over the baseline model. The long distance causal relation is extracted with the binary tree-styled cue phrase. We propose an incremental cue phrase learning method based on the cue phrase confidence score that was measured after each causal classifier learning step. A better recall of 15.37 percentage points is acquired after the cue phrase learning.     

计算机网络应急响应研究

计算机网络应急响应在保障信息安全上起到越来越重要的作用。该文介绍了国外网络信息安全应急响应的经验、管理和技术,重点分析了应急响应机构CERT/CC、CSRC、CIAC网站的内容、组成和体系结构,包括有：多种操作平台的安全资源信息、最新技术动态和研究方向、系统运用工程学研究计算机网络安全、评估安全威胁态势、预测未来网络可能面临的威胁、应急响应流程和协调、培训方式等,并在此基础上,提出了国内网络系统管理员应注意和改进的建议。该文为发展国内网络应急响应服务和维护计算机网络安全提供了参考和借鉴。     

双频雷达高度计电离层色散效应误差分析

由于现代星载雷达高度计采用了脉冲压缩技术，引入了电离层色散误差，在双频高度计的低频段该误差更明显。本文基于全去斜技术的理论模型，推导了这项误差的机理，提出可以把该误差等效为二次相位误差，并结合具体参数给出了分析的结果。本文还讨论了Chirp信号的多普勒误差对测高的影响。最后，作者通过计算机仿真得到了电离层色散效应对系统点目标响应的影响,对前面的结论进行了验证。     

基于汉密尔顿状态转移模型的沪市知情交易度量与特征分析

本文以汉密尔顿状态转移技术为基础,建立信息交易概率的实时度量方法,并系统分析知情交易的时变特征及其与交易环境之间的关系.实证结果表明,知情交易对价格的影响远远高于非知情交易,且信息交易概率与交易规模正相关、与市场深度负相关,这些市场环境因素影响着知情交易者的交易决策.     

Sin1-mediated mTOR signaling in cell growth,metabolism and immune response

The mammalian target of rapamycin (mTOR) is an evolutionarily conserved Ser/Thr protein kinase with essential cellular function via processing various extracellular and intracellular inputs. Two distinct multi-protein mTOR complexes (mTORC), mTORC1 and mTORC2, have been identified and well characterized in eukaryotic cells from yeast to human. Sin1, which stands for Sty1/Spc1-interacting protein1, also known as mitogen-activated protein kinase (MAPK) associated protein (MAPKAP)1, is an evolutionarily conserved adaptor protein. Mammalian Sin1 interacts with many cellular proteins, but it has been widely studied as an essential component of mTORC2, and it is crucial not only for the assembly of mTORC2 but also for the regulation of its substrate specificity. In this review, we summarize our current knowledge of the structure and functions of Sin1, focusing specifically on its protein interaction network and its roles in the mTOR pathway that could account for various cellular functions of mTOR in growth, metabolism, immunity and cancer.     

外商投资企业劳资关系分析与对策研究

改革开放以来,外商开始以各种形式开展对中国的投资,这对我国的劳动关系产生了很大冲击。因此,只有借鉴发达国家的先进经验,密切结合中国国情,在建立劳动立法体系、企业内部的劳动关系的调整机制、实现工业民主化等方面,不断摸索我国外商投资企业劳资合作的方法与形式,才能进一步协调劳动关系,促进外商投资企业在我国的健康发展。     

热休克蛋白的研究进展及其应用

在不利的环境中，各种有机体都有其共同对应的分子反应，即正常基因的表达抑制和一组特殊基因－热休克基因的激活和表达，并导致热休克蛋白的大量产生。热休克蛋白主要作为分了伴侣而参与蛋白的折叠、转运及组装等过程，并能恢复或加速清除细胞内已变性的蛋白质而稳定细胞结构，使细胞产生热耐受。随着对热休克蛋白研究的不断深入，其在生物工程、医学和遗传育种等方面的应用前景十分广阔。