137 resultados para Variantes


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This study aimed to gather information about the social and linguistic reality of students 1. years of elementary school and community that came, in order to identify aspects of their lexical phonological levels, morphological and morphosyntactic and thus identify and describe the alternative variants of non-standard rule. The methodology chosen was that of variational sociolinguistics addressing quantitative and qualitative aspects in the treatment of the data collected through participant observation and audio recordings of speeches of the students. The results indicate that the level of phonological variants are the most frequent in the speech of students. Because the literacy phase, how the student speaks serves you a guide to the act of writing, so it is necessary to work with the students the difference between oral and written form and monitoring of these two modes according to the context of the discourse

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This study focuses on the current use of the relative pronoun qual and variants or alternatives (o/os/a/as/ qual/quais, preceded or not by prepositions) in Brazilian Portuguese concerning mainly on the phenomenon of hypercorrection. As a theoretical basis, it was used the study of William Labov about the phenomenon and also the rules of use of this pronoun present in both traditional grammars and linguistic studies. It was performed a qualitative analysis of a corpus of written language with the intention of describing the different uses of the pronoun, and looking for their possible motivations. There were also found different types of occurrences of hypercorrection, which has led to propose a scale of uses of this relative pronoun, which reveals an increasing loss of its functions towards an use as an index of prestige. It discusses also the stylistic factor as a potential motivator of this phenomenon

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A fisiopatologia da esquizofrenia parece envolver uma complexa interação entre vulnerabilidades genéticas e fatores de risco ambientais. O uso de Cannabis tem sido apontado como um destes fatores, que contribui para o surgimento de sintomas psicóticos em indivíduos predispostos e piora o curso da doença pré-estabelecida. O sistema endocanabinóide está envolvido neste processo, podendo apresentar possíveis implicações na manifestação de sintomas. O presente trabalho teve como objetivo geral verificar se variantes dos genes CNR1 (codificador do receptor endocanabinóide tipo 1) e AKT1 (codificador de proteína serina-treonina quinase), individualmente ou interativamente, e o uso de Cannabis podem ser fatores de risco para a esquizofrenia e para a refratariedade ao tratamento com antipsicóticos. Foram estudados 202 pacientes portadores de esquizofrenia e 277 indivíduos saudáveis. Os polimorfismos rs1049353 (G/A) e rs806380 (A/G) do gene CNR1 e os rs2494732 (C/T) e rs1130233 (A/G) do gene AKT1 foram genotipados por meio da técnica de PCR (polymerase chain reaction) em tempo real com sistema de detecção Taqman®. Tais polimorfismos foram correlacionados ao diagnóstico de esquizofrenia e a outras variáveis, tal como o uso de Cannabis, resposta ao tratamento e subtipos da doença. Também foi realizada análise de estratificação populacional a partir de marcadores genéticos escolhidos para a população brasileira a fim de correção estatística de fatores confundidores relacionados a diferenças étnicas. Foi visto uma influência positiva da idade de acometimento em pacientes refratários quando comparados com os pacientes respondedores (p = 0,006), confirmando os dados da literatura que sugerem uma idade de acometimento mais precoce da doença em portadores de esquizofrenia refratária. A interação dos genótipos AA do polimorfismo rs806380...(Resumo completo, clicar acesso eletrônico abaixo)

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The catalytic function of extended-spectrum β-lactamases can result in high degrees of bacterial resistance to β-lactamic antimicrobials and in the emergence of ESBL among the members of Enterobacteriaceae family, especially Klebsiella pneumoniae and Escherichia coli. This occurs due to the dissemination and emergence of new variants of these enzymes caused by the high utilization of antibiotics like broad-spectrum cephalosporins. The ESBL are β-lactamases capable of conferring bacterial resistance to the penicillins, 1st, 2nd and 3rd generation cephalosporins, and aztreonam (but not cephamycins and carbapenems) through the hydrolysis of these antibiotics. In view of this phenomenon, the exact screening and detection of the producers of ESBL are essential for the appropriate selection of the antimicrobial therapy. The purposes of this study were to evaluate the best antimicrobial for the selection of ESBL producers and to determine the best method for the detection of such microorganisms. We evaluated 200 sequential bacterial samples including the species Klebsiella pneumoniae (56.5%), Escherichia coli (34%), Proteus mirabilis (8.5%) and Klebsiella oxytoca (1%), previously characterized as ESBL producers between February and September 2008 in the Laboratory of Microbiology, Botucatu Medical School - UNESP, Botucatu, São Paulo State, Brazil. To select the ESBL-producer bacteria, we used the disks recommended by CLSI 2008, aztreonam (ATM), cefpodoxime (CPD), ceftriaxone (CRO), cefotaxime (CTX) and ceftazidime (CAZ), besides cefepime (FEP). ESBL production was confirmed by three methods: double disk screening, ESBL Etest®, and Vitek® automated system. The disks employed in the double disk screening were: penicillin associated with β-lactamase inhibitor, amoxicillin-clavulanic acid, and two β-lactamic antibiotics, ceftazidime and cefotaxime...(Complete abstract click electronic access below)

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Infertility is directly related to chromosomal abnormalities in germ cells. Among them, the aneuploidies are the most frequent chromosomal abnormalities and responsible for embryo implantation failures, miscarriages, fetal losses and newborns with congenital malformations, mental disability and neuropsychomotor developmental delay. Male patients with normal somatic karyotype may present different rates of aneuploidies in sperm, resulting in abnormal embryos. This study aimed to correlate the frequency of chromosomal aneuploidies in spermatozoa with embryo implantation rate in couples undergoing assisted reproductive techniques. The methodology has included chromosomal analysis by GTG banding and molecular cytogenetic study using Fluorescent In Situ Hybridization technique for evaluation of chromosomes 9, X and Y in germ cells of 22 patients referred to the Human Reproduction Service of the Clinical Hospital FMRP-USP. Embryo implantation rates were determined by hormonal evaluation in maternal peripheral blood and ultrasound confirmation. Two patients presented abnormal karyotype, characterized by polymorphism of the heterochromatic region of the long arm of chromosome 9 and a satellite in the short arm of chromosome 22. Both alterations, usually considered variants of normality, have been related to infertility phenotype and miscarriages. Significant differences were detected between couples who presented pregnancy (group 1) and couples with embryo implantation failure (group 2), with higher frequency of aneusomy and diploidy of chromosome 9, as well as total aneuploidy in sperm of group 2 patients. Our results suggest a correlation between aneuploidy and embryo implantation rates, since the infertile group with reproductive failure has showed higher frequency of aneuploidy. Screening for aneuploidies detection in male germ cells should be included in order to decrease embryo implantation failures, miscarriages and fetuses with chromosomal ...

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Pós-graduação em Microbiologia Agropecuária - FCAV

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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This paper, which examines restrictive and non-restrictive constructions in the Lusophone varieties, assumes that Portuguese has a set of relativization strategies that are recognized by typological linguistics as constructions that define related groups of languages. Thus, it is possible that these different strategies, when employed by the same linguistic system, not really constitute variants of the same syntactic variable but the speaker’s actual choices facing the necessity to perform different social and discursive functions.

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This work examines relative constructions in Portuguese varieties based on the principle that Portuguese has a set of relativization strategies that are recognized in typological linguistics as constructions that define related groups of languages. It is postulated that these different strategies, when employed by the same linguistic system, do not really constitute variants of the same syntactic variable, but they are the speaker’s actual choices facing the necessity to perform different social and discursive functions.

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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This study aims to verify the reduction phenomenon and/or disappearance of vowels, especially unstressed vowels in PE compared to the PB, obtained by analysis of the recording of an oral reading sample of the Mar Português poem, by Fernando Pessoa, made by informants of the two variants. The noticeable difference in pronunciation of the informants, with any possibility of reaching up to no understanding of European pronunciation by Brazilian speakers motivated the development of an experiment that allowed us to compare the duration of vowels produced in the two variants. By isolating and measuring the vowels at Praat audio analysis program, this study was to confirm the reduction and, in extreme cases, the disappearance of unstressed vowels in PE, a phenomenon described in Mateus and D'Andrade (2000)