国际科技合作中知识转移风险的研究

随着科技全球化的发展和深入,国际科技合作成为各国政府和科研机构提升自身科研水平和核心竞争力的有力途径。然而,在国际科技合作中进行知识的转移与交流时,不可避免的面临着各种各样的风险,如何识别扣防范这些风险成为目前亟待解决的议题。有鉴于此,本文从知识、合作成员和环境三个维度,系统的对国际科技合作中的知识转移风险因素进行了分析,并据此进一步构建出相应的风险防范机制模型,力图为降低国际科技中的知识转移风险提供科学的理论依据。     

The utility F-box for protein destruction

A signature feature of all living organisms is their utilization of proteins to construct molecular machineries that undertake the complex network of cellular activities. The abundance of a protein element is temporally and spatially regulated in two opposing aspects: de novo synthesis to manufacture the required amount of the protein, and destruction of the protein when it is in excess or no longer needed. One major route of protein destruction is coordinated by a set of conserved molecules, the F-box proteins, which promote ubiquitination in the ubiquitin-proteasome pathway. Here we discuss the functions of F-box proteins in several cellular scenarios including cell cycle progression, synapse formation, plant hormone responses, and the circadian clock. We particularly emphasize the mechanisms whereby F-box proteins recruit specific substrates and regulate their abundance in the context of SCF E3 ligases. For some exceptions, we also review how F-box proteins function through non-SCF mechanisms.     

基于S3C2410构建PDA数据采集节点系统

描述了以现代的无损检测技术为基础,以S3C2410为核心构建的PDA数据采集系统。该系统实现了无线网络节点的数据采集功能。在此基础上设计了一套PDA数据采集,其硬件结构由S3C2410、无线网络节点和通信模块等组成;系统软件分为驱动程序模块、通信协议模块等,可应用于高校的教室温度采集系统。     

Genus Baseodiscus (Nemertea: Heteronemertea): Molecular identification of a new species in a phylogenetic context

A new heteronemertean, Baseodiscus jonasii sp. nov., is described from Guadalcanal, Solomon Islands. It resembles B. delineatus in inner morphology but can be distinguished from this species by its different colour pattern and differences in the nucleotide sequence of the mitochondrial 16S rRNA gene. The monophyletic status of the genus is investigated by reconstructing the phylogeny of six specimens from four species assigned to this genus, together with 22 specimens from nine other heteronemertean genera, using parsimony and Bayesian analysis. The results imply that Baseodiscus is a monophyletic group while several other heteronemertean genera are non‐monophyletic.     

美国国家实验室发展经验对中国强化国家战略科技力量的启示

在探索国家战略科技力量的定义与历史演进的基础上,探讨了美国国家实验室建设发展的经验,分析了中国国家战略科技力量发展面临的使命和存在的问题,提出了中国发展国家战略科技力量的相关建议。     

南水北调中线工程向黄河相机补水政策的探讨

针对黄河流域水资源贫乏的现状,分析了南水北调中线工程向黄河相机补水的必要性和可行性,进而提出了相关的政策建议。     

高C3S水泥硬化浆体水浸取液中离子浓度的变化规律

为了研究高C3S水泥硬化浆体水浸取液中离子浓度与水化条件间的关系，本文利用水浸取法探讨了水化时间、水灰比、水化温度等因素对高硅酸三钙水泥水化硬化体系水浸取液中离子浓度的影响。试验结果表明：浸取液中的各离子浓度和pH值随水化时间的延长、水灰比的增加和养护温度的升高而降低；其中水化14d前离子浓度和pH值下降速度很快，14d下降速度趋缓；各水化条件下离子浓度的大小主要与水化程度、孔隙率和水化产物的溶解相关。该研究对于从离子浓度方面去了解高C3S水泥的水化特点具有一定的指导意义。     

山西省自然科学和技术领域研发机构分析

介绍了山西省民口县级以上政府部门属自然科学与技术研发机构2006—2010年科技活动和R&D活动的基本情况和发展趋势。     

金融机具销售子系统的研究

根据金融机具企业产品的特征,采用C/S结构和B/S结构相结合的方案,研制开发了金融机具产品销售管理系统中的销售预测子系统,并以"JL302微型纸币清分机"为例,给出了销售预测子系统的几个实际运行界面以及功能流程图.结果表明此系统适合金融机具行业,具有用户操作简便、易于扩展,系统实用、可靠性较高等特点.     

Identification of an S5n allele in Oryza rufipogon Griff. and its effect on embryo sac fertility

Oryza rufipogon exhibits abundant genetic diversity and contains many elite genes. In this work, a total of 441 accessions of O. rufipogon were genetically examined using the functional marker S5n, revealing that 18 accessions carried the S5n allele with a heterozygous genotype (S5nS5i/j). Of these accessions, 14 were from Guangdong Province, 2 from Guangxi Zhuang Autonomous Region, 1 from Hainan Province and 1 from Jiangxi Province. Further sequence analysis spanning both sides of the deletion in S5n allel...