95 resultados para Tek


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This paper is going to present a fragment of the analysis of Slobodan Šnajder’s metatheatrical play Gamllet (1987), which is to be read in along the line of Šnajder’s Hrvatski Faust (1981). While introducing the theoretical concept of the theatrical key image, which is influenced by the concept of the image by the Jewish-German art historian Aby Warburg, the paper will shed light on a specific theoretical framework to cultural analysis entangling both, production- and reception-related aesthetic approaches towards cultural analysis.

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Mode of access: Internet.

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En Costa Rica hay seis lenguas indígenas reconocidas oficialmente. Cada una de ellas disfruta de una condición diferente en cuanto a sus tradiciones y números de hablantes, entre otras. A pesar de los esfuerzos del gobierno de Costa Rica y otros investigadores desde 1995, las lenguas han enfrentado dificultades a nivel interno y externo, las cuales han resultado en el debilitamiento o inclusive pérdida de las mismas. Esto nos lleva al caso de boruca, una de las lenguas de Costa Rica que puede ahora ser considerada una lengua extinta. Este artículo presenta una descripción general del pueblo boruca, sus tradiciones y sus principales características, y a la vez ofrece al lector una descripción tipológica general de la lengua en la cual se discuten brevemente los rasgos generales de su gramática.In Costa Rica there are six officially recognized indigenous languages. Each enjoys a different condition in terms of its traditions and number of speakers, among others. Despite efforts of the Costa Rican government and other researchers since 1995, the languages have met endogenous and exogenous difficulties that have resulted in the weakening and even loss of the languages. This leads us to what happened to Boruca, one of the indigenous languages of Costa Rica which can now be considered an extinct language. This article presents a general description of the Boruca people, their traditions and main characteristics, and it also introduces the reader to a general typological description of the language where the main features of its grammar are briefly discussed.

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Enterprise Systems (ES) provide standardized, off-theshelf support for operations and management within organizations. With the advent of ES based on a serviceoriented architecture (SOA) and an increasing demand of IT-supported interorganizational collaboration, implementation projects face paradigmatically new challenges. The configuration of ES is costly and error-prone. Dependencies between business processes and business documents are hardly explicit and foster component proliferation instead of reuse. Configurative modeling can support the problem in two ways: First, conceptual modeling abstracts from technical details and provides more intuitive access and overview. Second, configuration allows the projection of variants from master models providing manageable variants with controlled flexibility. We aim at tackling the problem by proposing an integrated model-based framework for configuring both, processes and business documents, on an equal basis; as together, they constitute the core business components of an ES.

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Background: Coats plus syndrome is an autosomal recessive, pleiotropic, multisystem disorder characterized by retinal telangiectasia and exudates, intracranial calcification with leukoencephalopathy and brain cysts, osteopenia with predisposition to fractures, bone marrow suppression, gastrointestinal bleeding and portal hypertension. It is caused by compound heterozygous mutations in the CTC1 gene. Case presentation: We encountered a case of an eight-year old boy from an Indian family with manifestations of Coats plus syndrome along with an unusual occurrence of dextrocardia and situs inversus. Targeted resequencing of the CTC1 gene as well as whole exome sequencing (WES) were conducted in this family to identify the causal variations. The identified candidate variations were screened in ethnicity matched healthy controls. The effect of CTC1 variation on telomere length was assessed using Southern blot. A novel homozygous missense mutation c.1451A > C (p.H484P) in exon 9 of the CTC1 gene and a rare 3'UTR known dbSNP variation (c.*556 T > C) in HES7 were identified as the plausible candidates associated with this complex phenotype of Coats plus and dextrocardia. This CTC1 variation was absent in the controls and we also observed a reduced telomere length in the affected individual's DNA, suggesting its likely pathogenic nature. The reported p.H484P mutation is located in the N-terminal 700 amino acid regionthat is important for the binding of CTC1 to ssDNA through its two OB domains. WES data also showed a rare homozygous missense variation in the TEK gene in the affected individual. Both HES7 and TEK are targets of the Notch signaling pathway. Conclusions: This is the first report of a genetically confirmed case of Coats plus syndrome from India. By means of WES, the genetic variations in this family with unique and rare complex phenotype could be traced effectively. We speculate the important role of Notch signaling in this complex phenotypic presentation of Coats plus syndrome and dextrocardia. The present finding will be useful for genetic diagnosis and carrier detection in the family and for other patients with similar disease manifestations.

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*Table of Contents* Sustainable Aquaculture Fertilization, soil and water quality management in small-scale ponds part II:Soil and water quality management S. Adhikari Fisheries and aquaculture activities in Nepal Tek Gurung Peter Edwards writes on rural aquaculture: A knowledge-base for rural aquaculture Farmers as Scientists: Commercialization of giant freshwater prawn culture in India M.C. Nandeesha Aquaculture in reservoir fed canal based irrigation systems of India – a boon for fish production K.M. Rajesh, Mridula R. Mendon, K. N. Prabhudeva and P. Arun Padiyar Research and Farming Techniques Production and grow-out of the Black-lip pearl oyster Pinctada margaritifera Idris Lane Breeding of carps using a low-cost, small-scale hatchery in Assam, India: A farmer proven technology S.K. Das Genes and Fish: Hybridisation – more trouble than its worth? Graham Mair Breeding and culture of the sea cucumber Holothuria scabra in Vietnam R. Pitt and N. D. Q. Duy The potential use of palm kernel meal in aquaculture feeds Wing-Keong Ng Using a Simple GIS model to assess development patterns of small-scale rural aquaculture in the wider environment Simon R. Bush Aquaculture fundamentals: Getting the most out of your feed Simon Wilkinson Marine finfish section Status of marine finfish aquaculture in Myanmar U Khin Kolay Regional training course on grouper hatchery production Aquatic Animal Health Advice on aquatic animal health care: Problems in Penaeus monodon culture in low salinity areas Pornlerd Chanratchakool

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CONTENTS: Livelihood Improvements through fisheries in the Pode community in Pokhara, Nepal, by Tek Bahadur Gurung and Jay Dev Bista. Women’s participation in coastal resources management and livelihoods in Khanh Hoa Province, Vietnam, by Nguyen Thu Hue, Than Thi Hien, Pham Thi Phuong Hoa, Nguyen Viet Vinh and Dao Viet Long. Supporting people’s efforts and interactions in coastal resources management in Indonesia, by Tabitha Yulita. Planning for a community fisheries M&E system, by Heather Airlie and Haiko Meelis. Identifying needs and recommendations for efficient stakeholder communications through an information access survey, by Elizabeth M. Gonzales, Malene Felsing and Erwin L Pador. IEC seminar-workshop in support of fisheries ordinance implementation in Roxas City, Philippines, by Belinda M. Garrido and Elizabeth M. Gonzales.

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The Tie-2 receptor has been shown to play a role in angiogenesis in atherosclerosis. The conventional method assaying the level of soluble Tie-2 (sTie-2) was ELISA. However, this method has some disadvantages. The aims of this research are to establish a more simple detection method, the optical protein-chip based on imaging ellipsomtry (OPC-IE) applying to Tie-2 assay. The sTie-2 biosensor surface on silicon wafer was prepared first, and then serum levels of sTie-2 in 38 patients with AMI were measured on admission (day 1), day 2, day 3 and day 7 after onset of chest pain and 41 healthy controls by ELISA and OPC-IE in parallel. Median level of sTie-2 increased significantly in the AMI patients when compared with the controls. Statistics showed there was a significant correlation in sTie-2 results between the two methods (r=0.923, P0.01). The result of this study showed that the level of sTie-2 increased in AMI, and OPC-IE assay was a fast, reliable, and convenient technique to measure sTie-2 in serum.

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燃料电池以其高效、环境友好的发电方式,被誉为21世纪的能源技术。其中,直接甲醇燃料电池(DMFC)更以燃料甲醇来源丰富,价格低廉,储存、携带方便而成为近年的研究热点。但是,DMFC在其实用化之前还需要解决一些重要问题,其中的关键之一就是高性能的贵金属催化剂的研究。我们知道,甲醇的电化学活性要低于氢气三个数量级;而且甲醇在R表面进行电化学氧化时,其中间解离吸附产物会造成贵金属催化剂中毒,显著降低了催化剂的活性。因此,要使DMFC具有相当高的电流密度和运行稳定性,就需要对贵金属催化剂制备进行不断的研究和改进。在本文的工作中,主要从Pt/C催化剂的制备方法、新型碳纳米管载体、稀土助催化剂等三个方面进行了研究和探索,取得的具体结果如下:1.Pt/C催化剂制备方法的研究与改进(1)在本组已有的研究结果基础上,对预沉积还原法进行了一些改进,采用原子吸收光谱(AAS)进行表征,发现Pt的利用率得到了明显的提高。采用X射线衍射。(RD)、透射电子显微镜(TEM)和BET表征铂的粒径、晶态结构和催化剂特性,分析表明,经过改进的预沉积还原法制备的催化剂仍然具有良好的分散性、较小的粒径、较低的晶态结构和良好的催化剂特性,电化学测试证明其性能要优于同等的E-TEK催化剂。(2)借鉴冶金学中的相关技术,提出了一种新的Pt/C催化剂制备方法一程序升温焙烧法。该方法的具体步骤增强了金属催化剂粒子和碳载体之间的相互作用力,提高了碳载体的导电性,并且形成了部分有利于催化反应进行的活性晶态结构。得到的R/C催化剂获得了近似E-TEK催化剂的催化活性,在具体方法上仍有改进的潜力。采用了同(1)的催化剂表征方法。2.甲醇电化学氧化稀土助催化剂研究在直接甲醇燃料电池Pt/C催化剂的研究过程中,一个重要的方面就是助催化剂的研究,并且已经得到了较好的结果。本工作选用了稀土元素为研究对象,因为稀土元素属于过渡金属,具有丰富的d电子轨道,易于和金属形成强的类化学键的吸附作用,并且能够和有机小分子形成多种配位化合物。经过初步的工作,发现了有些稀土离子如Sm3+能够在Pt表面吸附并且对甲醇电化学氧化具有较稳定的促进作用,采用循环伏安法,计时电流,交流阻抗等电化学方法进行了表征。根据实验结果,对其反应机理进行了初步的探讨。3.碳纳米管(CNTs)作为贵金属催化剂载体的研究碳纳米管(CNTs)由于其结构上的特殊性(径向尺寸为纳米量级,轴向尺寸为微米量级)而表现出典型的一维量子材料,同时具有较高的机械强度和超常的电学性能,能够为化学反应提供纳米级的反应场所,因此受到了化学界包括电化学研究人员的极大关注。已经在作为贵金属催化剂载体方面进行了一些研究,本工作的主要内容就是针对Pt/CNTs催化剂对碳纳米管的要求,对其预处理方法进行了改进,采用了如(1)中的催化剂表征方法和(2)中的相关电化学方法进行测定,发现碳纳米管作为贵金属催化剂载体时,对它的纯化处理方法的不同明显地影响了其载体性质和催化剂的活性。

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For an olfactory sensor or electronic nose the task is not only to detect the object concentration, but also to recognize it. It is well known that all the elements can be identified by their charge to mass ratio e+/m. We tried to use this principle for molecular recognition. Two kinds of sensors are used simultaneously in testing. One is Quartz Crystal Microbalance (QCM) for detecting the change in mass, the other is Interdigital Electrode (IE) for detecting the change in conduction. In this paper the principle and the feasibility of this method are reported. The preliminary results on the recognition of alcohols are presented. The multisensor can be used as an instrument for research on material properties and kinetic process as well.

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For an olfactory sensor or electronic nose, the task is not only to detect the object concentration, but also to recognize it. It is well known that all the elements can be identified by their charge to mass ratio e(+)/m. We tried to imitate this principle for molecular recognition. Two kinds of sensors are used simultaneously in testing. One is quartz crystal microbalance (QCM) for detecting the change in mass, the other is interdigital electrode (IE) for detecting the change in conduction, as an electro-mass multi-sensor (EMMS). in this paper, the principle and the feasibility of this method are discussed. The preliminary results on the recognition of alcohol by EMMS coated with lipids are presented. Meanwhile, the multi-sensor can also be used as an instrument for research on some physico-chemistry problems. The change in conduction of coated membrane caused by one absorbed molecule is reported. It is found that when a QCM is coated with membrane, it still obeys the relationship Delta F (frequency change of QCM) = K Delta m (mass change of absorbed substance) and the proportional coefficient, K, depends not only on quartz properties but also on membrane characteristics as well. (C) 2000 Elsevier Science S.A. All rights reserved.