Real-Time Visual SLAM Using Pre - Existing Floor Lines as Landmarks and a Single Camera

SANTANA, André M.; SANTIAGO, Gutemberg S.; MEDEIROS, Adelardo A. D. Real-Time Visual SLAM Using Pre-Existing Floor Lines as Landmarks and a Single Camera. In: CONGRESSO BRASILEIRO DE AUTOMÁTICA, 2008, Juiz de Fora, MG. Anais... Juiz de Fora: CBA, 2008.

Localization of a mobile robot based on odometry and natural landmarks using extended kalman filter

SANTANA, André M.; SOUZA, Anderson A. S.; BRITTO, Ricardo S.; ALSINA, Pablo J.; MEDEIROS, Adelardo A. D. Localization of a mobile robot based on odometry and natural landmarks using extended Kalman Filter. In: INTERNATIONAL CONFERENCE ON INFORMATICS IN CONTROL, AUTOMATION AND ROBOTICS, 5., 2008, Funchal, Portugal. Proceedings... Funchal, Portugal: ICINCO, 2008.

Portugal e Brasil: a imprensa literária e o início da imprensa ilustrada Portugal and Brazil: from literary

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

Formação da literatura e constituição do Estado nacional

O objetivo deste trabalho é discutir questões literárias e históricas postas em pauta pelo livro Formação da literatura brasileira de Antonio Candido, cuja primeira edição é de 1959. Essa obra – ao reelaborar e procurar superar antigas referências vinculadas às datações e explicações das origens da literatura nacional – apresenta caráter inovador, o que, de um lado, a levou a ser um paradigma fundamental para a história e a crítica literária no país e, de outro lado, provocou muitas polêmicas e objeções. Partindo, portanto, da herança histórico-crítica precedente e incorporando muitos de seus elementos, o crítico repensa os marcos históricos, literários e culturais do surgimento da literatura no Brasil, ou seus momentos decisivos, tendo em vista a noção de sistema literário. Cinquenta anos após a publicação desse estudo, é oportuno e necessário, cremos, rediscutir e redefinir as demarcações histórico-literárias da criação ou da formação da literatura brasileira, por meio de uma leitura diversa do processo de organização do Estado e da nação no Brasil.

Effect of digitization parameters on periapical radiographic image quality with regard to anatomic landmarks

The aim of this study was to evaluate the influence of digitization parameters on periapical radiographic image quality, with regard to anatomic landmarks. Digitized images (n = 160) were obtained using a flatbed scanner with resolutions of 300, 600 and 2400 dpi. The radiographs of 2400 dpi were decreased to 300 and 600 dpi before storage. Digitizations were performed with and without black masking using 8-bit and 16-bit grayscale and saved in TIFF format. Four anatomic landmarks were classified by two observers (very good, good, moderate, regular, poor), in two random sessions. Intraobserver and interobserver agreements were evaluated by Kappa statistics. Inter and intraobserver agreements ranged according to the anatomic landmarks and resolution used. The results obtained demonstrated that the cement enamel junction was the anatomic landmark that presented the poorest concordance. The use of black masking provided better results in the digitized image. The use of a mask to cover radiographs during digitization is necessary. Therefore, the concordance ranged from regular to moderate for the intraobserver evaluation and concordance ranged from regular to poor for interobserver evaluation.

Identification of literary movements using complex networks to represent texts

The use of statistical methods to analyze large databases of text has been useful in unveiling patterns of human behavior and establishing historical links between cultures and languages. In this study, we identified literary movements by treating books published from 1590 to 1922 as complex networks, whose metrics were analyzed with multivariate techniques to generate six clusters of books. The latter correspond to time periods coinciding with relevant literary movements over the last five centuries. The most important factor contributing to the distinctions between different literary styles was the average shortest path length, in particular the asymmetry of its distribution. Furthermore, over time there has emerged a trend toward larger average shortest path lengths, which is correlated with increased syntactic complexity, and a more uniform use of the words reflected in a smaller power-law coefficient for the distribution of word frequency. Changes in literary style were also found to be driven by opposition to earlier writing styles, as revealed by the analysis performed with geometrical concepts. The approaches adopted here are generic and may be extended to analyze a number of features of languages and cultures.

La traducción del sentido del humo: limitaciones literarias = Translation of the sense of humor: literary limitations

Doctorado en Traducción e Interpretación