A collaborative approach for solving the university course timetabling problem

This work proposes a collaborative approach for solving the university course timetabling problem (UCTP). A prototype was developed and used for a computer science course at the Federal Fluminense University in Brazil. The main idea is that students, professors, and course coordinators contribute collaboratively to course timetabling through an app. These contributions employ heuristics, which is responsible for timetabling to improve the solution to the problem. Results and future works are described herein

Uma heurística VNS para o problema de roteamento de aeronaves Offshore / A VNS heuristic for the Offshore aircraft routing problem

O objetivo desse trabalho consiste em propor uma heurística para o setor de transporte aéreo da Petrobras, a fim de planejar o transporte de pessoas em terra para as diversas unidades marítimas espalhadas ao longo da costa brasileira. O problema pode ser definido como um problema de roteamento de veículos que estabelece a tabela semanal de voos que se repetirá a longo prazo, minimizando o custo de transporte de passageiros para as unidades e maximizando o uso das aeronaves disponíveis. A solução deve considerar uma série de restrições de segurança de voo e contratos com as empresas de transporte em vigor. A heurística desenvolvida se baseia na metaheurística VNS, e foi testada com dados reais de três aeroportos. Os resultados obtidos foram promissores e indicam que ela pode ser aplicada em todas as fases do processo de transporte aéreo.

Bridging IMO e-Navigation Policy and Offshore Oil and Gas Operations through Geospatial Standards

In offshore industry activities, the suitable onboard provision of assets location and geospatial marine information during operations is essential. Currently, most companies use its own data structures, resulting in incompatibility between processes. In order to promote the data exchange, oil and gas industry associations have pursued initiatives to standardize spatial information. In turn, the IMO - International Maritime Organization - started the implementation of e-Navigation policy, which is the standardization of technologies and protocols applied to maritime information and navigation. This paper shows relationship and integration points between maritime activities of oil and gas industry and e-Navigation technologies and processes, highlighting geospatial information. This paper also preludes out an initiative for a suitable product specification for the offshore oil and gas industry, compliant with e-Navigation and IHO S-100 international standards

Análise dos efeitos agudos do alongamento estático em treinamento de força: uma revisão sistemática

Esta pesquisa teve como temática analisar os efeitos agudos do alongamento estático em treinamento de força. O problema constou do seguinte quesito: preencher lacunas que possam existir sobre o tema, buscando por meio desta pesquisa quais os efeitos deste tipo de alongamento previamente ao exercício resistido. O objetivo foi realizar uma busca referente ao tema da influência do alongamento estático ao treinamento resistido. A metodologia precedeu de uma abordagem qualitativa, com delineamento em uma revisão sistemática. Concluímos que o alongamento muscular provocou efeito deletério, prejudicando o desempenho dos avaliados

Enfoque colaborativo para resolver el problema de la programación de horarios de asignaturas universitarias

This work proposes a collaborative approach for solving the university course timetabling problem (UCTP). A prototype was developed and used for a computer sciencecourse at the Federal Fluminense University in Brazil. The main idea is that students, professors, and course coordinators contribute collaboratively to course timetabling through an app. These contributions employ heuristics, which is responsible for timetabling to improve the solution to the problem. Results and future works are described herein.Este trabajo propone un enfoque colaborativo para resolver el problema de la programación de horarios de asignaturas universitarias (UCTP). Se desarrolló y utilizó un prototipo para un curso de ciencias de la computación de la Universidad Federal Fluminense de Brasil. La idea principal es que los estudiantes, profesores y coordinadores de asignatura contribuyan de forma colaborativa a la programación de horarios a través de un aplicativo. Estas contribuciones utilizan la heurística, responsable de la programación de horarios, a fin de mejorar la resolución del problema. Se describen los resultados alcanzados y los trabajos futuros

NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics

Xenarthrans—anteaters, sloths, and armadillos—have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths. Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the southern United States, Mexico, and Caribbean countries at the northern portion of the Neotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n = 5,941), and Cyclopes sp. have the fewest (n = 240). The armadillo species with the most data is Dasypus novemcinctus (n = 11,588), and the fewest data are recorded for Calyptophractus retusus (n = 33). With regard to sloth species, Bradypus variegatus has the most records (n = 962), and Bradypus pygmaeus has the fewest (n = 12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans data set. Please cite this data paper when using its data in publications. We also request that researchers and teachers inform us of how they are using these data