نتایج جستجو برای: para
تعداد نتایج: 274288 فیلتر نتایج به سال:
This paper reviews Drosophila voltage-gated Na(+) channel mutations encoded by the para (paralytic) gene and their contributions to seizure disorders in the fly. Numerous mutations cause seizure-sensitivity, for example, para(bss1), with phenotypes that resemble human intractable epilepsy in some aspects. Seizure phenotypes are also seen with human GEFS+ spectrum mutations that have been knocke...
In many bacteria the ParA-ParB protein system is responsible for actively segregating DNA during replication. ParB proteins move by interacting with DNA bound ParA-ATP, stimulating their unbinding by catalyzing hydrolysis, that leads to rectified motion due to the creation of a wake of depleted ParA. Recent in vitro experiments have shown that a ParB covered magnetic bead can move with constant...
چکیده: در این مطالعه ساختار ترکیب های استیلیدهای para-x-c6h4-c?c-c6xh5; (y=heteroatom) در فاز گازی روش محاسباتی m062x با مجموعه پایه6-311g** بهنیه شده است. داده های انرژی یونش و الکترون خواهی آدیاباتیک و عمودی محاسبه شده اند. اثر استخلاف روی انرژی اوربیتال های جبهه ای، سختی، پتانسیل شیمیایی و الکترون دوستی ترکیب ها مطالعه شده است. خاصیت نوری ناخطی ترکیب ها مرد بررسی قرار گرفته و اثر استخلاف بر...
phenolic resins are synthetic low molecular weight thermoset resins which are polymerized and cured to higher molecular weights by condensation method. these resins have high weathering resistance, high oxidative thermal properties and good chemical resistance. phenolic resins can be cured thermally or by acid curing. the most common method of curing phenolic resin is by thermal curing that tak...
The following Supporting Methods describe determination of the charge density on each nonbridging oxygen atom and catalytic proficiencies for the R166S AP-catalyzed reactions of the following substrates: para-nitrophenyl phosphate (pNPP), para-nitrophenyl phosphorothioate (pNPPS), bis-(para-nitrophenyl) phosphate (bpNPP), methyl para-nitrophenyl phosphate (MpNPP), methyl para-nitrophenyl phosph...
A Demanda Bioquímica de Oxigênio (DBO) e a Demanda Química de Oxigênio (DQO) são os principais indicadores rotineiramente utilizados para avaliação de carga orgânica em matrizes de interesse ambiental. Nesse contexto, avaliações da possibilidade de substituição das testes de DBO e DQO por medidas de Carbono Orgânico Dissolvido (COD) são apresentadas para diferentes águas residuárias. Para eflue...
Bacterial plasmids encode partitioning (par) loci that confer stable plasmid inheritance. We showed previously that, in the presence of ParB and parC encoded by the par2 locus of plasmid pB171, ParA formed cytoskeletal-like structures that dynamically relocated over the nucleoid. Simultaneously, the par2 locus distributed plasmids regularly over the nucleoid. We show here that the dynamic ParA ...
Reconhecimento e síntese de fala demandam grandes quantidades de dados para aplicações comerciais. Em inglês americano, existem grandes quantidades de bancos de fala para a produção de modelos acústicos. Isto não é realidade para muitas línguas, incluindo o Português Brasileiro. Este trabalho apresenta o desenvolvimento de dois bancos de fala para reconhecimento com 248 locutores (224 sentenças...
The partition system of P1 plasmids is composed of two proteins, ParA and ParB, and a cis-acting site parS. parS is wrapped around ParB and Escherichia coli IHF protein in a higher order nucleoprotein complex called the partition complex. ParA is an ATPase that autoregulates the expression of the par operon and has an essential but unknown function in the partition process. In this study we dem...
O léxico ampliado da linguagem (LAL) é uma representação proposta para registrar o vocabulário de um contexto, estendendo o conceito de dicionário denotacional para um léxico circular com denotações e conotações. É uma linguagem utilizada por várias pesquisas para ancorar a modelagem de requisitos na linguagem corrente do contexto. Esse artigo descreve um processo colaborativo para a construção...
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