植物分子育种

我国自70年代兴起植物分子育种,到80年代已取得很大的进展,在外源DNA导入方法探讨和抗性育种,品质育种、早熟与超高产育种等方面都获明显的成效。研究的进展和实践成果表明,它是植物多类型、多抗、优质、超高育种的有效途径,是植物品种改良技术的发展方向。     

凝胶色谱图象计算机分析技术用于DNA检测的实验研究

用计算机图象分析技术对凝胶色谱图象进行分析从而获得DNA分子量和其它参数 构成了数字化凝胶色谱图象计算机系统分析系统。本文介绍了该项技术的实验仪器构成、工作原理及国内外有关的最新发展情况 并结合临床实验给出了实验分析结果。     

古DNA技术:民族考古学研究的新视角

古DNA技术使考古学对古人遗骸的研究得以进入分子水平 ,为民族考古学对过去人群的研究 ,如性别与家系鉴定、族属分辨、群体内部关系及群体迁徙等 ,提供了直接的证据 ,为高新技术与人文学科的交叉研究开辟了全新的领域。     

Extreme shape analysis

Summary.  We consider the analysis of extreme shapes rather than the more usual mean- and variance-based shape analysis. In particular, we consider extreme shape analysis in two applications: human muscle fibre images, where we compare healthy and diseased muscles, and temporal sequences of DNA shapes from molecular dynamics simulations. One feature of the shape space is that it is bounded, so we consider estimators which use prior knowledge of the upper bound when present. Peaks-over-threshold methods and maximum-likelihood-based inference are used. We introduce fixed end point and constrained maximum likelihood estimators, and we discuss their asymptotic properties for large samples. It is shown that in some cases the constrained estimators have half the mean-square error of the unconstrained maximum likelihood estimators. The new estimators are applied to the muscle and DNA data, and practical conclusions are given.     

从认知构式语法角度探究"得"字句的本质属性

文章以现代汉语表状态“得”字句、表程度“得”字句和表可能“得”字句为研究对象,试图在认知构式语法理论框架探求它们的主要属性,研究它们与表结果“得”字句的内在关联进而探求整个“得”字句式的本质属性。通过研究,我们发现现代汉语“得”字句的本质属性可归纳为:某种程度和某种结果。现代汉语“得”字句是一个功能范畴,是一个具有交际功能的网络系统,它们之间具有家族相似性,又有着各自不可替代的功能,它们协同在一起完成交际功能。     

美国已分离DNA分子可专利性之辩及启示

美国Myriad案是引发已分离DNA分子是否具有可专利性论争的重要案件。2011年,美国联邦巡回法院推翻纽约南区法院作出的一审判决,认定已分离DNA分子具有可专利性,这一裁判的根本性逆转更是激起利益各方的广泛关注和持久争辩。争辩中,对立双方往往忽略一个事实,即基因、天然DNA和已分离DNA三者内涵和外延不尽相同,应予以区分。因而,认为所有基因及DNA分子都不具有可专利性是不可取的,但不加区分地一律赋予授权资格同样毫无依据。判断已分离DNA分子的可专利性资格,重点应考量与天然DAN分子的组分差异,并采用多重标准综合判断。同时,应严格将科学发现排除在可专利性资格范围之外。     

‘Being while black’: resistance and the management of the self

‘Being while black’ is ultimately an ‘everyday revolution’, Despite the fact that people manage their selves by their own choosing, especially as their desires are being shaped (Foucault, 1977), their selves remains the basic revolutionary unit. Foucault's oeuvre on power and concept of dressage is utilized to explain racial profiling of blacks of what I call ‘racial dressage’, intended primarily to discipline the ‘black body’ (el-Khoury, 2009). In this paper, I argue that despite this false sense of presence of power and internalized social-control, blacks actively construct their day-to-day activities as a discursive object of resistance. Critical awareness to racial oppression is in itself is a form of opposition to it (Collins, 1990). I argue that social control and resistance are coproduced. Using discursive analysis of interviews I identified the following modes of resistance: disposition to steadiness (constituting an ethical self, sustaining an internal dialogue, and emotional management), rejecting criminalizing identities, discursive consciousness, refusing the spatial power, and lastly disbelief in the system. Ultimately, blacks live against ‘themselves’ and this is because the soul that has become the prison of the body, is being dismantled (Luxon, 2008).     

结构主义、自然科学与经济学的变革

经济学与自然科学的元素结构具有惊人的相似性。运用结构主义方法,可以改进经济学的基因结构。与生物DNA的基本片段相比较,《资本论》的基因片段尚未健全。由于历史限制,马克思尚未建立起多维对称的基因结构。但《资本论》的基因片段可以自我复制、自我完善。《资本论》基因片段的自我完善,对于建立经济学元素周期率和经济学DNA结构,对于21世纪经济学的变革意义重大。     

企业成长能力的演进机理——以建筑企业为例

对企业成长能力形成及演进机理开展了研究,从企业的成长演化进程分析入手,研究了建筑企业应对市场环境变化,沿着经验环和创新环,通过企业层、项目层和企业间3个层面的组织学习与互动,将知识整合成市场开拓流程、组织管理流程、技术创新流程和网络合作流程,进而复合形成建筑企业成长能力的演进过程.运用基因(DNA)模型对各子流程形成的子能力之间的复合进行了分析,对建筑企业成长能力的复合过程进行了诠释,进而解释了建筑企业在各成长阶段中的能力特征.