图书馆2.0:升级大学图书馆服务

基于大学图书馆2.0的发展状况,探究了其产生背景、理念服务、技术应用,通过文献和高校图书馆网站调研,将国内外高校图书馆应用图书馆2.0服务的实际情况进行了对比分析,指出了其相互差异。探究了图书馆2.0促使大学图书馆组织变革,职位结构发生变化,从而升级大学图书馆服务。     

Web2.0技术应用对图书馆信息传播的影响

Web2.0改变了信息传播活动的网络技术环境,在图书馆领域也已得到广泛应用。与之相应,图书馆的传播理念和服务方式正在发生深刻改变。对Web2.0技术在图书馆传播中的应用加以分析,在此基础上阐述了Web2.0对图书馆传播的影响。     

基于Web2.0的科技项目管理系统研究与设计

针对科技项目管理的业务流程特点,基于Web2.0技术,结合J2EE架构开发科技项目管理系统,实现科技项目的计划编制、申报、受理、评审、立项、跟踪监督及结题验收的全程信息化管理。     

图书馆2．0环境下的用户个性化信息服务研究

分析了图书馆2．0的理念和技术，指出个性化信息服务是图书馆2．0的核心思想，结合图书馆2．0环境探讨了适用于个性化信息服务的网络技术。     

Web2.0时代对农民信息素养的要求

通过对比Web1.0和Web2.0环境下信息传播的异同,解析农民信息素养的内涵,论述了Web2.0时代对农民信息素养的要求,包括了解新型信息的传播方式、掌握新型信息的存取技能、采用综合的信息评价方式、培养信息化时代的社会责任感等内容,旨在为提升农民信息素养提供有益的参考。     

Effects of vegetation type on soil resistance to erosion: Relationship between aggregate stability and shear strength

Soil water erosion and shallow landslides depend on aggregate stability and soil shear strength. We investigated the effect of vegetation on both soil aggregate stability and shear strength (through direct shear tests) in former croplands converted to vegetated erosion protection areas within the context of China's sloping land conversion programme. Four treatments were analysed in plots comprised of (i) 4 year old crop trees, Vernicia fordii, where understory vegetation was removed; (ii) V. fordii and the dominant understory species Artemisia codonocephala; (iii) only A. codonocephala and (iv) no vegetation. Soil samples were taken at depths of 0–5 cm and 45–50 cm. Root length density (RLD) in five diameter classes was measured, soil organic carbon (SOC), hot water extractable carbon (HWEC), texture and Fe and Al oxides were also measured. We found that mean weight diameter after slow wetting (MWD_SW) in the A-horizon, was significantly greater (0.94–1.01 mm) when A. codonocephala was present compared to plots without A. codonocephala (0.57–0.59 mm). SOC and RLD in the smallest diameter class (< 0.5 mm), were the variables which best explained variability in MWD_SW. A significant positive linear relationship existed between MWD_SW and soil cohesion but not with internal angle of friction. As herbaceous vegetation was more efficient than trees in improving aggregate stability, this result suggests that the mechanisms involved include modifications of the cohesive forces between soil particles adjacent to plant roots and located in the enriched in SOC rhizosphere, thus also affecting shear strength of the corresponding soil volume. Thus, vegetation stabilised soil under different hierarchical levels of aggregate organisation, i.e. intra- and inter-aggregate. Our results have implications for the efficacy of techniques used in land conversion programs dedicated to control of soil erosion and shallow landslides. We suggest that mixtures of different plant functional types would improve soil conservation on slopes, by reducing both surface water erosion and shallow substrate mass movement. Planting trees for cropping or logging, and removing understory vegetation is most likely detrimental to soil conservation.     

氧化磷酸化相关基因在大鼠肝再生中表达模式

为在基因转录水平了解氧化磷酸化相关基因在肝再生(liver regeneration,LR)中的作用,通过搜索网站资料和查阅相关论文等方法获得上述基因,用Rat Genome 230 2.0芯片检测它们在大鼠再生肝中表达变化,初步证实上述基因中31个基因与肝再生相关.它们表达的相似性分为均上调、上调占优势、均下调、下调占优势、上调和下调相近等5类,分别涉及9、1、15、4和2个基因,共表达上调42次、下调102次,表明肝再生中表达降低基因多于表达加强基因.它们表达的时间相关性分为12组,表明肝再生中细胞生理生化活动具有阶段性.根据芯片结果推测,肝再生早期和前期氧化磷酸化反应和ATP合成减少,中期和后期增强.其中,31个肝再生相关基因起重要作用.     

甘蓝型油菜抗菌核病材料的筛选研究

为了创造新的抗菌核病油菜种质材料,以品质优良、再生频率较高的甘蓝型黄籽油菜品系SH21,K81和甘蓝型黑籽品系P98的种子、预培养的下胚轴为诱变材料进行不同剂量的γ射线照射处理,以草酸为筛选剂,筛选抗(耐)菌核病材料,结果表明,草酸筛选浓度为700 mg/L,效果较好;3个品系通过草酸筛选,获得14株耐草酸植株,经过菌核病菌丝接种鉴定与筛选,筛选出7株抗性较高的植株。     

基于Lib2．0的高校在线信息素质教育模式探讨

高校图书馆一直致力于采用多种实现途径开展在线信息素质教育，而随着Lib2．0的潮流席卷而来，利用Lib2．0多个信息交流工具的特点，探讨一种在新形式下对高校用户进行在线信息素质教育的新模式。     

图书馆2.0背景下的数字阅读

数字阅读是图书馆2.0的重要应用之一,介绍了图书馆2.0及应用,并介绍了数字阅读的概念、特点、内容及现状。并呼吁图书馆从三个方面关注数字阅读。