Helen Rezende Figueiredo

Helen Rezende Figueiredo
  • PhD Student at Federal University of Mato Grosso do Sul

About

13
Publications
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60
Citations
Introduction
Current institution
Federal University of Mato Grosso do Sul
Current position
  • PhD Student

Publications

Publications (13)
Book
Full-text available
O objetivo deste material é ajudar pessoas que nunca tiveram contato com análises multitemporais e/ou nunca baixaram imagens de satélite. Este livro começou a ser desenvolvido por 3 estudantes de graduação e tem por objetivo compartilhar o conhecimento adquirido ao longo de meses. Após a leitura do conteúdo, o leitor conseguirá facilmente sair da e...
Article
Full-text available
Neste trabalho é apresentada uma abordagem geográfica ambiental diretamente associada ao uso das Geotecnologias como forma de avaliação de fitomassa. A referida análise é direcionada a uma das Unidades de Conservação localizadas no Pantanal de Mato Grosso do Sul, a Reserva Particular do Patrimônio Natural (RPPN) Fazenda Penha, criada em 1997. A par...
Article
Full-text available
This paper evaluates the potential of false-color composite images, from 3 different remote sensing satellites, for the identification of continental wetlands. Landsat 8, Sentinel-2, and CBERS-4 scenes from three different Ramsar sites (i.e., sites designated to be of international importance) two sites located within the Mato-Grossense Pantanal, a...
Article
Full-text available
Wetlands are ecosystems very important for preserving water and life, since they provide diverse ecosystem services. These environments are often associated with spring areas, with particular species and other very particular characteristics. This study aimed to analyze a wetland in an urban region of Iguatemi (MS), in relation to the kind of sprin...
Article
Full-text available
As áreas úmidas são ambientes com grande biodiversidade e ecossistemas importantes para a manutenção de serviços básicos ao ambiente, como na filtragem da água que realiza recarga hídrica, funcionando como os rins dos ecossistemas aquáticos. As zonas úmidas são ambientes frágeis que estão passando por alterações ambientais que reduzem suas áreas. A...
Article
Full-text available
Empirical models relating spectral variables such as biophysical vegetation cover variables are evaluated for specific data sets. The performances of these models are also evaluated or validated in a specific way, for example, what would be the result if data from other sensors were used in the establishment of the same models. The objective of thi...
Article
Full-text available
Background: Leishmaniases are considered a major public health problem in South America, specifically in Brazil. Moreover, the transmission and epidemiology of leishmaniasis are possibly associated with climatic and environmental variations. Objective: This study aimed to assess the association between the extreme climatic phenomenon El Niño-Sou...
Article
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Este trabalho visa otimizar o método de obtenção do índice de vulnerabilidade intrínseca dos aquíferos à poluição (IVIAP) conferindo à variável infiltração e recarga a combinação matricial entre os intervalos de declividade e a densidade relativa de cobertura vegetal. Além da coleta de dados hidrolitológicos das unidades aquíferas, o Sistema de Inf...
Article
Full-text available
The Aquidauana municipality is considered an endemic area of leishmaniasis and an important tourist site in Mato Grosso do Sul State. The aim of this study was to investigate the sand fly fauna in the city of Aquidauana. Captures were carried out twice a month, from April 2012 to March 2014 with automatic light traps and active aspiration, in the p...
Article
Full-text available
Visceral leishmaniasis affects various organs including the kidneys; which can lead to renal failure and death. In order to verify this renal involvement, material was evaluated from 100 dogs naturally infected and with serological diagnosis of canine visceral leishmaniasis (CVL). Inflammatory changes were present in 25.3% of the tubules, in 67.0%...
Article
Full-text available
Objetivos: avaliar, por meio de inquérito soroepidemiológico, a ocorrência da infecção pelo Toxoplasma gondii em universitários dos cursos de Enfermagem e Ciências Biológicas da Universidade Anhanguera – UNIDERP, Campo Grande, Mato Grosso do Sul. Métodos: as amostras de soro foram submetidas ao teste de ELISA de fase sólida para determinação dos an...
Article
Visceral leishmaniasis is an important zoonosis, involving various organs including the kidneys, and if not treated renal involvement may be fatal, considered a major cause of death in visceral leishmaniasis. Despite their importance, renal alterations are not well understood. Considering the dog as an excellent animal model, the goal of this study...

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