Results 31 to 40 of about 7,497 (215)

Seroprevalence and Risk Factors for Hepatitis E Virus in a Metropolis of Northeastern Brazil: A Population‐Based Survey

open access: yesZoonoses and Public Health, EarlyView.
ABSTRACT Introduction Hepatitis E virus (HEV) is a leading cause of acute hepatitis worldwide. While traditionally linked to poor sanitation in endemic areas, evidence shows increasing circulation in developed settings. In Brazil, however, population‐based data remain limited.
Carolline A. Mariz   +8 more
wiley   +1 more source

The negative influences of the new brazilian forest code on the conservation of riparian forests [PDF]

open access: yes, 2017
More than one million hectares of riparian forests were degraded or altered in Mato Grosso State (Brazil) up to 2009. The aim of the research is to set a comparative scenario to show differences in the quantification of environmental ...
Angeoletto, Fabio   +6 more
core   +2 more sources

From maps to mandates: Multitemporal vegetation cover analysis as a tool to evaluate environmental judicial decisions

open access: yesPeople and Nature, Volume 8, Issue 4, Page 886-903, April 2026.
Abstract This study examines the use of multitemporal vegetation cover analysis as a tool to assess the ecological effectiveness of judicial decisions that recognize the rights of nature, using Colombia's 2016 T‐622 decision on the Atrato River as a case study.
Juan Camilo Ríos‐Orjuela   +4 more
wiley   +1 more source

Reference frames in real time satellite positioning [PDF]

open access: yes, 2013
Los servicios de posicionamiento satelital a tiempo real (RT), utilizan el protocolo de internet NTRIP (Networked Transport of RTCM via Internet Protocol) para transmitir correcciones diferenciales provenientes de estaciones GNSS permanentes.
Camisay, Maria Fernanda   +2 more
core  

Desarrollo de estrategias para integración de las Redes Verticales de América del Sur con base en los términos de referencia SIRGAS/GGOS/IAG

open access: yesRevista Cartográfica, 2019
Los Sistemas Verticales de Referencia (SVRs) junto con sus materializaciones nacionales, regionales y globales, se encuentran en una evolución significativa en los últimos años debido a que son fundamentales para el monitoreo de procesos físicos ...
Andrea Galudht Santacruz Jaramillo
semanticscholar   +1 more source

Detecting Pteridium arachnoideum and Tithonia diversifolia in a Multiclass Land‐Cover Framework in the Cerrado: A Deep Learning Time‐Series Benchmark With Spatial Cross‐Validation

open access: yesTransactions in GIS, Volume 30, Issue 2, April 2026.
ABSTRACT This study presents the first deep‐learning time‐series benchmark for detecting two encroaching species in the Brazilian Cerrado: the native super‐dominant fern Pteridium arachnoideum and the invasive alien shrub Tithonia diversifolia. We evaluate 43 architectures across six families (CNNs, RNNs, Transformers, and three hybrid groups) on ...
Leandro de Arruda Bruno   +3 more
wiley   +1 more source

ANÁLISE DA EVOLUÇÃO DAS ÁREAS VERDES URBANAS – VILA NOVA – JOINVILLE/SC [PDF]

open access: yes, 2015
Este artigo apresenta uma avaliação da evolução das áreas verdes urbanas do perímetro amostral do município de Joinville no lapso temporal compreendido entre os anos de 1989 e 2007.
Junqueira, Juliana Reu
core  

Spatial Structure Explains Morphological Variation Better Than Climatic Gradients in the South American Rattlesnake (Crotalus durissus)

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
We evaluated whether climatic gradients or spatial structure better explain body size variation in the South American rattlesnake (Crotalus durissus) across its wide geographic range. After explicitly accounting for spatial autocorrelation, climatic variables were not significant predictors of body size in either sex, whereas sex‐specific spatial ...
Mileny Otani   +3 more
wiley   +1 more source

Índice de vulnerabilidade ambiental do município de Eunápolis-BA

open access: yesRevista de Geografia (Recife), 2022
O artigo tem como objetivo realizar o mapeamento da vulnerabilidade ambiental do município de Eunápolis, situado no Território de Identidade da Costa do Descobrimento, no sul do estado da Bahia.
Jeorge Luis Martins de Oliviera   +2 more
doaj   +1 more source

Alternative method for information georeferencing coordinate system magna-sirgas [PDF]

open access: yes, 2015
El posicionamiento preciso de puntos por sus siglas en ingles PPP, representa un método alternativo y de bajo costo que permite la georreferenciación de mojones o vértices de apoyo, que posteriormente, a partir de ellos, permitirán la captura de ...
Méndez Ramírez, Javier Jovani
core  

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