La cohesión textual en la enseñanza de la lengua.

Resumen tomado de la publicación. Resumen en inglés. Monográfico: La reflexión sobre la lengua

Cohesión textual en la expresión escrita de alumnos sordos de educación primaria y secundaria : estudio descriptivo

Resumen en inglés. Resumen basado en el de la publicación

Un caso de transposición didáctica del español inspirado en los aportes de la pedagogía para la comprensión y la lingüística textual

Resumen basado en el de la publicación. Resumen en inglés

Imagen-palabra : texto visual o imagen textual

Resumen basado en el de la publicaci??n

Ortografia i producci?? textual

Resumen basado en el de la publicaci??n

La correcci?? de l'escrit i el proc??s de construcci?? textual : una proposta per a l'avaluaci?? de l'expressi?? escrita

Resumen basado en el de la publicaci??n

Gram??tica y producci??n textual : bases ling????sticas para la intervenci??n did??ctica

Resumen basado en el de la publicaci??n

Simplification, approximation and deformation of large models

The high level of realism and interaction in many computer graphic applications requires techniques for processing complex geometric models. First, we present a method that provides an accurate low-resolution approximation from a multi-chart textured model that guarantees geometric fidelity and correct preservation of the appearance attributes. Then, we introduce a mesh structure called Compact Model that approximates dense triangular meshes while preserving sharp features, allowing adaptive reconstructions and supporting textured models. Next, we design a new space deformation technique called *Cages based on a multi-level system of cages that preserves the smoothness of the mesh between neighbouring cages and is extremely versatile, allowing the use of heterogeneous sets of coordinates and different levels of deformation. Finally, we propose a hybrid method that allows to apply any deformation technique on large models obtaining high quality results with a reduced memory footprint and a high performance.

O ensino : aprendizagem da produção textual : um estudo a partir de textos produzidos por alunos do ensino fundamental

RESUMO : Esta pesquisa teve como objetivo analisar o processo de ensino-aprendizagem da produção textual em relação a competência comunicativa escrita do aluno, identificando as características e verificando se as propostas teóricas sobre produção textual foram implementadas em sala de aula, de forma a possibilitar o aprendizado da escrita de maneira motivadora, preparando-o para realizar tarefas sobre distintos componentes da competência comunicativa em nível de palavra, frase e texto. Foi realizado um estudo quantitativo-qualitativo e para a coleta de dados, aplicamos um questionário, e logo em seguida damos início as atividades de produção textual com temas indicados tanto pela professora-investigadora como pelos próprios alunos os quais serviram de base para a análise temática. Esta análise foi feita levando em consideração as condições de produção propostas por Geraldi, a perspectiva interacionista da linguagem Bakhtiniana e a teoria sociointeracionista de Vigotsky. Seguimos também os caminhos da Análise do Discurso de Orlandi. A sequência de textos foi de gêneros diferenciados, porém aplicada a todas as turmas. ABSTRACT: This study aimed to analyze the process of teaching and learning of text production in relation to communicative competence student writing, identifying the characteristics and verifying the theoretical proposals on textual production have been implemented in the classroom, to enable the learning of written in a way motivating, and thus prepare them to perform tasks on different components of communicative competence of a word, phrase or text. We conducted a quantitative and qualitative study and exploratory. To collect data, a questionnaire was administered, and then the activities of writing (narration, description and essay) with themes identified by both the teacher-researcher as the students themselves, which served as the basis for thematic analysis.The analysis was made taking into consideration the production conditions proposed by Geraldi. We adopt the interactionist perspective of language Bakhtiniana and the theory of Vygotsky sociointeractionist. The following texts were of different genres, but applied to all classes.

A prática do interacionismo sociodiscursivo da língua portuguesa escrita : projeto de reescrita textual

A dificuldade na produção da língua portuguesa escrita e a constante desmotivação dos alunos para escrever tem sido a grande preocupação dos educadores. Seguimos como fundamentação teórica da língua portuguesa escrita o interacionismo sociodiscursivo na abordagem da teoria de Bronckart e Bakhtin, o gênero discursivo segundo Bakhtin e a teoria do Habitus na concepção de Bourdieu, na intenção de reconhecer na língua escrita a manifestação concreta da competência linguística dos textos escolares e dos contextos sociais. Nessa perspectiva pretendemos analisar a prática interacionista sociodiscursiva e cognitiva da língua portuguesa escrita a partir dos textos dos alunos do ensino médio, e da reescrita dos textos de acordo com as orientações realizadas pelo professor. Conhecer o interacionismo sociodiscursivo na prática, nas produções textuais escritas dos alunos, foi o grande desafio da pesquisa. A partir da parte empírica foi possível verificar que os textos reescritos apresentaram avanço em vários aspectos, já que alguns alunos conseguiram sobressair em quesitos esperados pelo professor, mas outros alunos permaneceram presos ao primeiro texto sem modificação na estrutura ou argumentação, limitando-se às correções gramaticais. Nenhum aluno ousou recorrer a numa nova argumentação, ou ainda a uma nova estratégia em defesa dos argumentos propostos. Percebese a necessidade de novos caminhos que direcionem o professor em suas correções textuais capazes de motivarem os alunos a refletirem e que permitam que os alunos recorram à interação com o professor para melhorarem de maneira consciente as suas produções textuais.

Semantic-level Visual Content Descriptor combining visual and textual cues as collaterals

In this paper, we introduce a novel high-level visual content descriptor which is devised for performing semantic-based image classification and retrieval. The work can be treated as an attempt to bridge the so called “semantic gap”. The proposed image feature vector model is fundamentally underpinned by the image labelling framework, called Collaterally Confirmed Labelling (CCL), which incorporates the collateral knowledge extracted from the collateral texts of the images with the state-of-the-art low-level image processing and visual feature extraction techniques for automatically assigning linguistic keywords to image regions. Two different high-level image feature vector models are developed based on the CCL labelling of results for the purposes of image data clustering and retrieval respectively. A subset of the Corel image collection has been used for evaluating our proposed method. The experimental results to-date already indicates that our proposed semantic-based visual content descriptors outperform both traditional visual and textual image feature models.

A review and simplification of the in vitro incubation medium

The requirement to rapidly and efficiently evaluate ruminant feedstuffs places increased emphasis on in vitro systems. However, despite the developmental work undertaken and widespread application of such techniques, little attention has been paid to the incubation medium. Considerable research using in vitro systems is conducted in resource-poor developing countries that often have difficulties associated with technical expertise, sourcing chemicals and/or funding to cover analytical and equipment costs. Such limitations have, to date, restricted vital feed evaluation programmes in these regions. This paper examines the function and relevance of the buffer, nutrient, and reducing solution components within current in vitro media, with the aim of identifying where simplification can be achieved. The review, supported by experimental work, identified no requirement to change the carbonate or phosphate salts, which comprise the main buffer components. The inclusion of microminerals provided few additional nutrients over that already supplied by the rumen fluid and substrate, and so may be omitted. Nitrogen associated with the inoculum was insufficient to support degradation and a level of 25 mg N/g substrate is recommended. A sulphur inclusion level of 4-5 mg S/g substrate is proposed, with S levels lowered through omission of sodium sulphide and replacement of magnesium sulphate with magnesium chloride. It was confirmed that a highly reduced medium was not required, provided that anaerobic conditions were rapidly established. This allows sodium sulphide, part of the reducing solution, to be omitted. Further, as gassing with CO2 directly influences the quantity of gas released, it is recommended that minimum CO, levels be used and that gas flow and duration, together with the volume of medium treated, are detailed in experimental procedures. It is considered that these simplifications will improve safety and reduce costs and problems associated with sourcing components, while maintaining analytical precision. (c) 2005 Elsevier B.V. All rights reserved.

Textual communication in Virtual Environments for real world interaction

Ever since man invented writing he has used text to store and distribute his thoughts. With the advent of computers and the Internet the delivery of these messages has become almost instant. Textual conversations can now be had regardless of location or distance. Advances in computational power for 3D graphics are enabling Virtual Environments(VE) within which users can become increasingly more immersed. By opening these environments to other users such as initially through sharing these text conversations channels, we aim to extend the immersed experience into an online virtual community. This paper examines work that brings textual communications into the VE, enabling interaction between the real and virtual worlds.