Epilepsia nos distúrbios do desenvolvimento na primeira infância.

Trabalho de Conclusão de Curso - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Pediatria, Curso de Medicina, Florianópolis, 198

Competitividad y valores empresariales frente a la ética, la responsabilidad social y el impacto en la crisis ambiental

El enfoque determinante en este trabajo es el rol desempeñado por el empresario y en especial la alta gerencia y las decisiones con relación al cuidado y conservación del medio ambiente. Así, la ética y la responsabilidad social entran a hacer parte integral de las dinámicas de las organizaciones por consiguiente, la conservación del medio ambiente y de la naturaleza en toda su complejidad, deben identificarse como un factor que requiere, no solo especial atención, sino un compromiso que se traduzca en prácticas socialmente responsables, ambientalmente sostenibles y, de una gestión ecológica integrada a la cultura empresaria

Where to Bank?: The Impact of Fringe Banking Services and Disinvestment in the Bronx and a Proposal to Enable Economic Mobility

Senior Project submitted to The Division of Social Studies of Bard College

Study on the hydrofoil application on amphibious aircrafts

This Bachelor’s thesis proposes a preliminary study on the use of hydrofoils on amphibian aircraft. It contains a summary on seaplane and hydrofoil technology, followed by theoretical introduction in fluid dynamics and the mathematics applied for the study. At the beginning, the no-hydrofoil aircraft configuration is developed, using the theoretical background and XFOIL for the airfoil, to obtain its performance as a base for the hydrofoil study. The study progresses with the geometric configuration of the hydrofoil based on the researched theoretical background. The validation of this calculation is made with the OpenFOAM software based on a 2D flow simulation. The optimization of the foils are made by trial and error in the CFD. Finally, the new hydrofoil platform is designed and later on its performance is compared to the initial configuration to validate the usefulness of the modification. The author of this study intends to improve the TO performance of amphibian aircraft in order to bring up to date their fuel efficiency, as well as to assist amphibian plane electrification

Observatórios astronômicos virtuais e o ensino de ciências

Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia de Produção, Florianópolis, 2002

Going beyond persistent homology using persistent homology

Representational limits of message-passing graph neural networks (MP-GNNs), e.g., in terms of the Weisfeiler-Leman (WL) test for isomorphism, are well understood. Augmenting these graph models with topological features via persistent homology (PH) has gained prominence, but identifying the class of attributed graphs that PH can recognize remains open. We introduce a novel concept of color-separating sets to provide a complete resolution to this important problem. Specifically, we establish the necessary and sufficient conditions for distinguishing graphs based on the persistence of their connected components, obtained from filter functions on vertex and edge colors. Our constructions expose the limits of vertex- and edge-level PH, proving that neither category subsumes the other. Leveraging these theoretical insights, we propose RePHINE for learning topological features on graphs. RePHINE efficiently combines vertex- and edge-level PH, achieving a scheme that is provably more powerful than both. Integrating RePHINE into MP-GNNs boosts their expressive power, resulting in gains over standard PH on several benchmarks for graph classification.Comment: Accepted to NeurIPS 202

Fast Mid-IR Flashes Detected During Small Solar X-Ray Bursts

Solar observations in the mid-infrared 8-14 \mu\m band continuum were carried out with cadence of 5 frames per second, in December 2007. Rapid small heated sources, with typical duration of the order of seconds, were found on the bright plage-like areas around sunspots, in association with relatively weak GOES soft X-ray bursts. This work presents the analysis of fast mid-infrared flashes detected during a GOES B2.0-class event on 10 December 2007, beginning at about 10:40 UT. Rapid brightness temperature enhancements of 0.5 to 2.0 K were detected at the Earth by a microbolometer array, using a telescope with 10.5 cm diameter aperture producing a diffraction limited field-of-view of 25 arcsec. Minimum detectable temperature change was of 0.1 K. The corresponding fluxes are 30-130 solar flux units. At the solar surface the estimated rapid brightenings were of 50-150 KComment: 12 pages including 6 figures. Accepted by Solar Physics, April 201