Results 51 to 60 of about 12,662 (185)

Mapping the viral battlefield: SARS-CoV-2 infection dynamics among healthcare workers in Brazil

open access: yesHuman Resources for Health
Background Understanding the dynamics of SARS-CoV-2 viral infection and factors associated with in-hospital transmission rates among healthcare workers (HCW) is crucial for their protection.
Antonio Luiz Dal Bello Gasparoto   +27 more
doaj   +1 more source

Structure of aquatic vegetation of a large lake, western border of the Brazilian Pantanal

open access: yesBrazilian Journal of Biology
Studies on Neotropical aquatic macrophytes have increased in recent decades, however species richness in wetlands of South America is far from being fully known. In addition, studies having an ecological approach are scarce in the Pantanal.
NL. Cunha   +8 more
doaj   +1 more source

Síntese, caracterização e estudo das propriedades de um novo complexo mononuclear contendo quercetina e íon Ga(III)

open access: yesQuímica Nova, 2013
Flavonoids are one of the most important compound groups applied as medicine given their antioxidant properties, but several intrinsic properties can be improved through structural modifications to their molecules.
Vanessa do Nascimento Simões   +8 more
doaj   +1 more source

What are the vector species of the Oropouche virus?

open access: yesPest Management Science, EarlyView.
Here, we review the timeline of Oropouche virus (OROV) detection in various hematophagous Diptera, from 1955 to date, including mosquitoes and midges. All vector competence experiments also are described. The results suggest that Culicoides are the primary vectors.
Constância Flávia Junqueira Ayres   +3 more
wiley   +1 more source

Efeito da densidade de criação sobre o desempenho, rendimento de carcaça, produtividade e desenvolvimento ósseo de frangos de corte Cobb 500®

open access: yesSemina: Ciências Agrárias, 2017
O estudo teve como objetivo avaliar o efeito da densidade de criação de 10, 12, 14 e 16 aves m2 sobre o desempenho, os rendimentos de carcaça e cortes, a produtividade e o desenvolvimento ósseo de frangos de corte Cobb 500®.
Cleoneide dos Santos Henrique   +9 more
doaj   +3 more sources

Wall‐to‐wall Amazon forest height mapping with Planet NICFI, Aerial LiDAR, and a U‐Net regression model

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Tree canopy height is a key indicator of forest biomass and structure, yet accurate mapping across the Amazon remains challenging. Here, we generated a canopy height map of the Amazon forest at ~4.8 m resolution using Planet NICFI imagery and a deep learning U‐Net model trained with airborne LiDAR data.
Fabien H. Wagner   +21 more
wiley   +1 more source

S100, CD68, and MHC class II molecule expression in cervical high- and low-grade HPV-induced lesions

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2012
INTRODUCTION: Some human papillomavirus (HPV) types are involved in malignant processes in the cervical epithelium, with 99% of cases attributed to oncogenic HPV infection. This study aimed to detect S100, CD68, and major histocompatibility complex class
Fernanda Cassandri   +10 more
doaj   +1 more source

High level of exposure to hepatitis B virus infection in a vulnerable population of a low endemic area: A challenge for vaccination coverage

open access: yesInternational Journal of Infectious Diseases, 2020
Objectives: To evaluate the epidemiological and molecular features of HBV infection among recyclable waste collectors. Methods: The participants were recruited from the dumping ground and recycling cooperatives in Campo Grande, Brazil, and were screened ...
Sabrina Moreira dos Santos Weis-Torres   +15 more
doaj   +1 more source

Urban Forests and Environmental Challenges in the Last Decades in Brazil: Insights for the National Urban Forestry Plan

open access: yesSustainable Development, EarlyView.
ABSTRACT National afforestation policies are crucial for outlining guidelines and goals to be implemented at the local level. Therefore, it is crucial to conduct research that systematizes indicators from across the country into a single proposal. This study examines the spatiotemporal distribution of urban forest research in Brazil from 1980 to 2020 ...
Mauricio Lamano Ferreira   +5 more
wiley   +1 more source

Assessing the Effects of Biodiesel Production on Sustainability: A Bayesian Two‐Stage Data Envelopment Analysis Approach

open access: yesSustainable Development, EarlyView.
ABSTRACT Sustainable development transforms production systems, requiring integrated environmental, social, and economic strategies. Energy systems are key agro‐industrial supply chains in developing countries. Brazil's soybean supply chain impacts Gross Domestic Product, mainly through exports.
Aline Veronese da Silva   +3 more
wiley   +1 more source

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