Development of a large-scale isolation chamber system for the safe and humane care of medium-sized laboratory animals harboring infectious diseases

The close phylogenetic relationship between humans and non-human primates makes non-human primates an irreplaceable model for the study of human infectious diseases. In this study, we describe the development of a large-scale automatic multi-functional isolation chamber for use with medium-sized laboratory animals carrying infectious diseases. The isolation chamber, including the transfer chain, disinfection chain, negative air pressure isolation system, animal welfare system, and the automated system, is designed to meet all biological safety standards. To create an internal chamber environment that is completely isolated from the exterior, variable frequency drive blowers are used in the air-intake and air-exhaust system, precisely controlling the filtered air flow and providing an air-barrier protection. A double door transfer port is used to transfer material between the interior of the isolation chamber and the outside. A peracetic acid sterilizer and its associated pipeline allow for complete disinfection of the isolation chamber. All of the isolation chamber parameters can be automatically controlled by a programmable computerized menu, allowing for work with different animals in different-sized cages depending on the research project. The large-scale multi-functional isolation chamber provides a useful and safe system for working with infectious medium-sized laboratory animals in high-level bio-safety laboratories.     

Viral infection of tobacco plants improves performance of Bemisia tabaci but more so for an invasive than for an indigenous biotype of the whitefly

The ecological effects of plant-virus-vector interactions on invasion of alien plant viral vectors have been rarely investigated. We examined the transmission of Tomato yellow leaf curl China virus (TYLCCNV) by the invasive Q biotype and the indigenous ZHJ2 biotype of the whitefly Bemisia tabaci, a plant viral vector, as well as the influence of TYLCCNV-infection of plants on the performance of the two whitefly biotypes. Both whitefly biotypes were able to acquire viruses from infected plants and retained t...     

关联翻译观视角下外宣文本变译策略探析——以2010年政府工作报告（英译本）为例

由于汉英语言文化上的显著不同,国内读者和外国受众在认知语境上也存在较大差异。外宣译本的成功与否往往取决于译本是否具有最佳关联性。文章以2010年政府工作报告（英译本）为例,以关联翻译观为指导,着重探讨了变译策略在外宣翻译中的应用。     

范畴化与意义认知变异

范畴化是人类认识客观世界的认知基础,范畴化过程中既形成原型范畴又形成文化定势。因此人类对意义的认知与原型、定势都有关。原型被称为是一类事物中的“最佳样板”,是人类对意义认知的基础和核心部分,有助于我们对意义的认知范畴化。而文化定势是人类思想范畴化的一种复杂形式,它局限于特定社会中的人群,使他们对意义的认知在主观上产生固化。如果用认知的观点审慎地看待范畴,就会发现原型是人的思想表现的认知参照点。所以对不同语言社团的人来说,同一范畴中意义的认知可能会产生变异。     

天然肠衣搭配组装算法

天然肠衣原料长短不一,按要求搭配组装成品,运算量很大。采用迭代算法并基于平均值变动规律的研究,建立起用于肠衣成品搭配组装的4个算法模型,其特点是：先行剔除剩余原料,随机应变安排次序,均匀调节长短搭配,即时检验约束条件,可同时保障可行性与最优性,得到了最好的结果,且优于整数规划模型。     

“生物制品分析与检验”课程实践教学模式的改革初探

针对"生物制品分析与检验"课程当前实验教学中的问题,提出"自主探究——问题发现——实验设计——自评互评"的实践教学模式,旨在提高生物技术及应用专业学生的创新意识和实践能力。     

一类二阶变系数线性微分方程的解法

研究了利用常数变易法求一类二阶变系数线性微分方程通解的解法,给出通解公式.     

略论方言词“实同形异”的表现及成因——以广东客、闽、粤方言为例

"实同形异"是汉语方言词之间的主要差异。主要以广东三大方言(客家话、潮汕话、粤方言)的代表点(梅县、潮州、广州)词语为例,分析了"实同形异"的表现及原因。     

生态语言学视角下的汉语语言变异与语言生态环境的互动性探究

语言通过不断的变化来适应不断变化的语言生态环境。语言的变异与变化是一个动态的过程。语言与语言生态环境相互依存,相互作用,相互影响。语言生态环境中的多样化因素导致了语言变异的产生。在语言变异与语言生态环境的互动中,语言变异不仅能维护语言生态,保持语言的活力,同时也能促进语言生态环境的生态化。但是某些语言变体的广泛传播也会造成语言生态环境的污染,影响语言生态环境的健康。     

基于贝叶斯网络的组织创新影响机制研究

组织创新影响机制中各变量具有不确定性与动态性等特点,可以尝试进行贝叶斯网络分析。根据贝叶斯网络的基本原理,构建了基于贝叶斯网络的组织创新影响机制模型,并对复杂贝叶斯网络计算问题的简化问题进行了探讨。实例应用表明,该方法克服了其他传统分析方法局限于线性、静态分析的缺点,较为准确地反映了组织创新影响机制各变量间的动态关系。