Arranging sensations: smell and taste in augmented and virtual reality

The development of digital taste and smell underscores the importance of cultural dimensions of bodily perception in augmented reality (AR) and virtual reality (VR) devices. This can be seen in Vocktail and Season Traveller, two digital devices incorporating taste and smell. Vocktail is an AR technology that augments the experience of drinking water, or even air, through the electrical stimulation of tastebuds and the manipulation of color and smell. Season Traveller is a VR game in which the user moves through four seasonal landscapes. It uses wind, odor, and temperature in addition to the more standard audio-visual displays. The cultural dimensions of these devices can be examined using phenomenological terms. They instigate perceptual circuits, and call on and create sedimented habits. Although VR and AR are often thought of in terms of their similitude to reality, understanding Vocktail and Season Traveller this way illustrates the world-creating dimension of multisensory devices. These technologies structure and shift thresholds of taste and smell, reworking past perceptual styles and habits to develop new perceptual experiences. In so doing, Season Traveller and Vocktail throw to the fore questions about the conditions according to which people exercise their senses in digitally dominated environments.     

“人天价值观”的历史进路和现实应用

＂人天价值观念＂是现当代人们通过社会实践方式在推动社会发展的历史进程中形成的主流性价值观念。这一价值观念的形成不是一蹴而就的,其间经过了肯定、否定和否定之否定的三个历史过程。而当代被人们看好的＂天人合一＂式的人天价值观念,就是历史上形成的人天价值观念发展的最新形态。在科学发展观成为主导性话语的现阶段,在以人为本价值诉求成为主导性诉求的当下,弘扬陕西省人民＂DNA管理文化＂中所蕴涵的＂性命天道价值观念＂,对于目前的全面小康社会发展目标的实现和和谐社会、和谐人格的建构不无裨益。     

Fitting Markov chain models to discrete state series such as DNA sequences

Discrete state series such as DNA sequences can often be modelled by Markov chains. The analysis of such series is discussed in the context of log-linear models. The data produce contingency tables with similar margins due to the dependence of the observations. However, despite the unusual structure of the tables, the analysis is equivalent to that for data from multinomial sampling. The reason why the standard number of degrees of freedom is correct is explained by using theoretical arguments and the asymptotic distribution of the deviance is verified empirically. Problems involved with fitting high order Markov chain models, such as reduced power and computational expense, are also discussed.     

移动云计算环境中个人用户QoE评价研究

探索了移动云计算环境下个人用户QoE评价的影响因素,构建了基于移动云计算的个人用户QoE （用户体验质量）评价影响因素模型。通过使用结构方程对模型进行实证检验,最终验证了研究所提出的三方面假设。研究结论指出,移动云计算的个人用户感知评价中,正面核心影响因素为“绩效期望”和“社会影响”;负面核心影响因素为“感知成本”和“感知风险”。研究结果给云计算提供商更好地为个人用户服务提供了一定的参考依据。     

An online copy number variant detection method for short sequencing reads

The availability of the next generation sequencing (NGS) technology in today's biomedical research has provided new opportunities in scientific discovery of genetic information. The high-throughput NGS technology, especially DNA-seq, is particularly useful in profiling a genome for the analysis of DNA copy number variants (CNVs). The read count (RC) data resulting from NGS technology are massive and information rich. How to exploit the RC data for accurate CNV detection has become a computational and statistical challenge. We provide a statistical online change point method to help detect CNVs in the sequencing RC data in this paper. This method uses the idea of online searching for change point (or breakpoint) with a Markov chain assumption on the breakpoints loci and an iterative computing process via a Bayesian framework. We illustrate that an online change-point detection method is particularly suitable for identifying CNVs in the RC data. The algorithm is applied to the publicly available NCI-H2347 lung cancer cell line sequencing reads data for locating the breakpoints. Extensive simulation studies have been carried out and results show the good behavior of the proposed algorithm. The algorithm is implemented in R and the codes are available upon request.     

从12SrRNA部分基因序列探讨鳄的系统发生关系

本文用常规方法测定了雅卡凯门鳄（caiman yacane）、新几内亚鳄（crocodylus novaeguineae）等2种鳄类的约400bp的mtDNA12SrRNA基因片段的部分序列,所测序列与GenBank中的其他18种鳄类的12SrRNA基因相应片段同源序列一起经Clustal X1．8软件进行比对,并以乌龟（chinemys reevesii）为外群,用ClustalX（1．8）,Mega2软件以及paup软件将这20种鳄的12SrRNA基因部分序列进行比对后构建了20种鳄的进化关系树,并分别用NJ树,MP树探讨它们之间的系统发生关系。其结果显示：食鱼鳄属Gavialis与马来假食鱼鳄属Tomistoma的亲缘关系较近,构成姐妹群并位于鳄科分支的基部。非洲窄吻鳄（Crocodylus cataphractus）与骨喉鳄（Osteolaemus retraspis）形成姐妹群,它们的亲缘关系比与其它真鳄类的关系更近,赞同非洲窄吻鳄应从鳄属中独土出来归属于长吻鳄属Mecistops的观点,因此鳄科包括鳄属、骨喉鳄属和长吻鳄属,它们的关系为（鳄属（骨喉鳄属,长吻鳄属））。鼍科4属中凯门鳄属与黑鳄属关系最近,接下来的是古鳄属、鼍属,而且鼍属是鼍科中起源最早的类群。扬予鳄（Alligator sinensis）与密河鳄（Alligator mississippiensis）较近的亲缘关系得到支持,但它们并没有形成姐妹群关系。     

品牌竞争力的DNA模型解析

通过建立品牌竞争力的DNA模型对品牌竞争力进行了探索。DNA模型以品牌显性竞争能力和隐性竞争能力为双链,形成双螺旋结构,并以品牌市场能力、品牌领导能力、品牌创新能力和品牌文化能力为碱基,形成具有生物活性的DNA结构,从而打造出具有独特性和可遗传性的竞争优势。最后,用DNA模型对海尔的品牌竞争能力进行分析,清晰地呈现了海尔品牌的强势基因,为企业提升品牌竞争力提供了一种分析方法。     

多板纲动物的不同保存方法对基因组DNA提取的影响

为了探讨最佳的适合提取DNA的石鳖样本保方法,以日本花棘石鳖Liolophura japonica、日本宽板石鳖Placiphorella japonica、红条毛肤石鳖Acanthochiton ruhrolineatus、平濑锦石鳖Onithochiton hirasei、网纹鬃毛石鳖Mopalia retifera为实验材料,对其分别以甲醛浸泡、95%乙醇浸泡、-75℃超低温保存的样本进行基因组DNA提取.通过紫外分光光度计、琼脂糖凝胶电泳对DNA产物进行检测.结果表明：新鲜材料和用乙醇保存的样品比用-75℃超低温保存的样品提取出的DNA纯度和浓度都高,用甲醛浸泡的方法保存没有提取出DNA.结果表明,超低温保存适合用于DNA提取.但是由于条件限制,长距离外采集样本时适合于用乙醇保存,并且成本较低.     

企业DNA中的文化力

与生物体类似,企业也拥有其基因,了解这种基因有利于明确企业固有的特性,进而可以了解影响企业绩效的因素和原理.将企业基因与DNA模型相类比,研究对企业影响较大的四个因素(决策权、组织架构、激励机制和信息传导),可以构建出企业基因的模型,文化力作用于各因素之间,并对企业发展起着重要作用.