1,147 research outputs found

    Reaction-Diffusion System in a Vesicle with Semi-Permeable Membrane

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    We study the Schloegl model in a vesicle with semi-permeable membrane. The diffusion constant takes a smaller value in the membrane region, which prevents the outflow of self-catalytic product. A nonequilibrium state is stably maintained inside of the vesicle. Nutrients are absorbed and waste materials are exhausted through the membrane by diffusion. It is interpreted as a model of primitive metabolism in a cell.Comment: 8 pages, 6 figure

    One-pot synthesis, crystallization and deracemization of isoindolinones from achiral reactants

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    The synthesis, crystallization, and complete solid-state deracemization of isoindolinones was realized in one pot simply by grinding achiral reaction components in a suitable solvent with an achiral catalyst. Previously, this concept was applied to a reversible reaction, but herein we showed that it could also be used in combination with reactions in which product formation is irreversible. A controlled final configuration of the product was obtained by using small amounts of chiral additives or seed crystals of the product

    Alterations in composition and diversity of the intestinal microbiota in patients with diarrhea-predominant irritable bowel syndrome: Alterations in composition and diversity of the intestinal microbiota in D-IBS

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    The intestinal microbiota has been implicated in the pathophysiology of Irritable Bowel Syndrome (IBS). Due to the variable resolutions of techniques used to characterize the intestinal microbiota, and the heterogeneity of IBS, the defined alterations of the IBS intestinal microbiota are inconsistent. We analyzed the composition of the intestinal microbiota in a defined subgroup of IBS patients (diarrhea-predominant IBS, D-IBS) using a technique that provides the deepest characterization available for complex microbial communities

    On the Government’s Protection of Citizens’ Right to Know

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    本文讨论的是政府对于公民知情权的保护。文章主要分为三个部分:政府保护公民知情权的必要性、政府如何来保护公民的知情权以及我国政府保护公民知情权的现状和完善建议。文章由前言、第一章、第二章、第三章和结语组成。第一章论述政府保护公民知情权的必要性。本章分为两部分:政府为什么要保护公民的知情权和为什么是由政府来承担公民知情权的保护义务。信息失灵是信息社会信息不充分和信息占有不公平的现象。信息失灵的存在是不可避免的,同时信息失灵影响到了信息社会的各个方面,造成了信息社会信息资源利用的无效率和信息社会的不公平和不便利。这在一定程度上催生了公民对于知情权利的渴求,所以政府保护公民知情权也是政府解决信息社会信...The article discusses the government’s protection on citizen’s right to know. It contains three parts: the necessities for the government to protect citizens’ right to know, how to protect the right to know, the present situation and the perfection of our government’s protection mechanisms. It consists of the preface、chapter1、chapter2、chaper3 and the conclusion. Chapter 1 describes the nec...学位:法律硕士院系专业:法学院法律系_法律硕士(JM)学号:20040817
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