A produção lexical de adjetivos no português brasileiro

Ce travail a le but de quantifier les formes les plus courantes d’adjetifs en portuguais brésilien, il s’agit d’un travail qui porte sur les usages synchroniques de la langue. Notre objetif c’est d’indentifier les formations lexicales propres aux adjetifs et de quantifier les usages de ces fomations pour en découvrir les tendances synchroniques de ces usages en portuguais brésilien. Le corpus est de base écrite, composé des lettres des lecteurs de magazine, ce qui permet plus de stabilité pour l’analyse. Vu qu’il s’agit d’un suport d’expression populaire le corpus nous a possibilité de faire un approche au langage plus informelle dont la façon d’expression permet la formation de vocabulaires les plus insolites et les plus récentes, tandis que l’écrite formelle résiste plus aux changements. La recheche des formes nous a donné des résultats quantitatifs des formes déjà connues, les plus nouvelles aussi et des usages des mots appartenants à d’autres classes gramaticales qui avaient une valeur d’adjetive dans quelques contextes spécifiques, en expressions typiques de langage informel. Ce travail, donc, contribue comme um petit portrait de la réalité lexicale brésilienne dans l’usage dynamique de la langue

O campo lexical da cosmologia em dicionários de línguas indígenas brasileiras

A presente monografia consiste em um estudo metalexicográfico realizado sobre dois dicionários bilíngues de línguas indígenas brasileiras, analisados através do filtro temático da cosmologia, isto é, com enfoque nos lexemas que exprimem os conhecimentos indígenas acerca do céu, dos fenômenos naturais e dos elementos sociológicos associados. O levantamento dos dados lexicais serviu como base para a elaboração de um banco de dados de valioso emprego para futuros estudos, tanto no campo da lexicografia como no da cosmologia e etnografia

A epêntese vocálica no português brasileiro: regra lexical ou pós-lexical?

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

Variação e mudança lexical no português brasileiro do século XX: um estudo descritivo-comparativo

In this article, we analyze only the processes of lexical expansion related to the reuse and recontextualization of words. We selected 50 names of animals in Brazilian Portuguese (PB). These words were found in two dictionaries and only the definitions connoting human actions and attributes were used. Through this study linguistic principles that are practically consensual were confirmed. We highlight the polissemic phenomenon as one of the factors that most contribute to the economy of the linguistic system.

Competência lexical na proficiência do professor de inglês como língua estrangeira: uma análise do teste oral do epple

Pós-graduação em Estudos Linguísticos - IBILCE

Computational speed-up with a single qudit

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

Levels of phonological awareness, working memory, and lexical knowledge in elementary school children

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Computational chemistry studies of UV induced processes in human skin

This thesis presents and uses the techniques of computational chemistry to explore two different processes induced in human skin by ultraviolet light. The first is the transformation of urocanic acid into a immunosuppressing agent, and the other is the enzymatic action of the 8-oxoguanine glycosylase enzyme. The photochemistry of urocanic acid is investigated by time-dependent density functional theory. Vertical absorption spectra of the molecule in different forms and environments is assigned and candidate states for the photochemistry at different wavelengths are identified. Molecular dynamics simulations of urocanic acid in gas phase and aqueous solution reveals considerable flexibility under experimental conditions, particularly for for the cis isomer where competition between intra- and inter-molecular interactions increases flexibility. A model to explain the observed gas phase photochemistry of urocanic acid is developed and it is shown that a reinterpretation in terms of a mixture between isomers significantly enhances the agreement between theory and experiment , and resolves several peculiarities in the spectrum. A model for the photochemistry in the aqueous phase of urocanic acid is then developed, in which two excited states governs the efficiency of photoisomerization. The point of entrance into a conical intersection seam is shown to explain the wavelength dependence of photoisomerization quantum yield. Finally some mechanistic aspects of the DNA repair enzyme 8-oxoguanine glycosylase is investigated with density functional theory. It is found that the critical amino acid of the active site can provide catalytic power in several different manners, and that a recent proposal involving a SN1 type of mechanism seems the most efficient one.

The lexical approach: collocability, fluency and implications for teaching

[EN] [EN] The lexical approach identifies lexis as the basis of language and focuses on the principle that language consists of grammaticalised lexis. in second language acquisition, over the past few years, this approach has generated great interest as an alternative to traditional grammar-based teaching methods. From a psycholinguistic point of view, the lexical approach consists of the capacity of understanding and producing lexical phrases as non-analysed entities (chunks). A growing body of literature concerning spoken fluency is in favour of integrating automaticity and formulaic language units into classroom practice. in line with the latest theories on SlA, we recommend the inclusion of a language awareness component as an integral part of this approach. The purpose is to induce what Schmidt (1990) calls noticing , i.e., registering forms in the input so as to store themin memory. This paper, which is in keeping with the interuniversity Research Project “Evidentialityin a multidisciplinary corpus of English research papers” of the University of las Palmas de Gran Canaria, provides a theoretical overview on theresearch of this approach taking into account both the methodological foundationson the subject and its pedagogical implications for SLA

Specification, execution and verification of interaction protocols: an approach based on computational logic

Interaction protocols establish how different computational entities can interact with each other. The interaction can be finalized to the exchange of data, as in 'communication protocols', or can be oriented to achieve some result, as in 'application protocols'. Moreover, with the increasing complexity of modern distributed systems, protocols are used also to control such a complexity, and to ensure that the system as a whole evolves with certain features. However, the extensive use of protocols has raised some issues, from the language for specifying them to the several verification aspects. Computational Logic provides models, languages and tools that can be effectively adopted to address such issues: its declarative nature can be exploited for a protocol specification language, while its operational counterpart can be used to reason upon such specifications. In this thesis we propose a proof-theoretic framework, called SCIFF, together with its extensions. SCIFF is based on Abductive Logic Programming, and provides a formal specification language with a clear declarative semantics (based on abduction). The operational counterpart is given by a proof procedure, that allows to reason upon the specifications and to test the conformance of given interactions w.r.t. a defined protocol. Moreover, by suitably adapting the SCIFF Framework, we propose solutions for addressing (1) the protocol properties verification (g-SCIFF Framework), and (2) the a-priori conformance verification of peers w.r.t. the given protocol (AlLoWS Framework). We introduce also an agent based architecture, the SCIFF Agent Platform, where the same protocol specification can be used to program and to ease the implementation task of the interacting peers.