Results 121 to 130 of about 240,071 (288)

First isolation of enterovirus 71 (EV-71) from Northern Brazil

open access: yesBrazilian Journal of Infectious Diseases
Enterovirus 71 (EV-71) has been associated to cases of neurological disease in many countries including Brazil. This virus has now been reported from three of the five Brazilian regions.
Leticia Martins Lamarão   +2 more
doaj   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Emerging acute Chagas Disease in Amazonian Brazil: case reports with serious cardiac involvement

open access: yesBrazilian Journal of Infectious Diseases
Four cases of serious cardiac attacks by autochthonous Trypanosoma cruzi infection from the Brazilian Amazon are reported; three of them occurred in micro-epidemic episodes.
Ana Yecê das Neves Pinto   +2 more
doaj   +1 more source

Trace Element Analysis in Human Neuroblastoma Cell Spheroids Supplemented With ZnCl2 by Micro‐XRF

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Neuroblastoma, the most common extracranial solid tumor of childhood, is responsible for ~10% of pediatric cancer deaths and has high potential for metastasis. Metals are extremely important in biological processes, and changes in their levels have been correlated with the development of cancerous growth.
J. E. P. Rosa   +10 more
wiley   +1 more source

Uso primário da membrana amniótica na redução de onfaloceles gigantes

open access: yesRevista do Colégio Brasileiro de Cirurgiões
OBJETIVO: Demonstrar a eficiência da redução de grandes onfaloceles utilizando o âmnio como "silo". MÉTODO: Doze pacientes com onfaloceles gigantes submetidos à redução progressiva pela inversão do âmnio. RESULTADOS: Obtida redução completa entre cinco e
Carlos Eduardo Prieto Velhote   +2 more
doaj   +1 more source

Integrated X‐Ray, Gamma Radiation, and Micro‐CT Techniques for Quantitative Wood Characterization

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT The present research integrates microcomputed tomography (micro‐CT), x‐ray fluorescence, and gamma‐ray transmission to quantitatively characterize wood species. A total of 22 samples from seven species were analyzed for density (ρ), linear attenuation coefficient (μ), Compton scattering, micro‐CT gray values (GV), porosity, mass attenuation ...
Roberta M. S. P. Borges   +7 more
wiley   +1 more source

Characterization of a Portable Computed Tomography System for In Situ Analysis of Wooden Sculptures in Cultural Heritage

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Portable X‐ray computed tomography (portable CT) has become an important tool for the non‐destructive investigation of cultural heritage objects, particularly when in situ analysis is required. This work presents the experimental characterization and application of a transportable cone‐beam CT system designed for the inspection of large and ...
Anderson de Paula   +7 more
wiley   +1 more source

Multielemental Analysis in Rice Grains by Total Reflection X‐Ray Fluorescence

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Rice (Oryza sativa) is a staple food cultivated worldwide and represents a significant source of essential nutrients for humans. However, this cereal may also contain potentially toxic elements including chromium, arsenic, and lead typically present at trace concentrations (ng.g−1).
F. T. S. Tsuyama   +8 more
wiley   +1 more source

Diagnóstico das condições de saúde de uma comunidade garimpeira na região do Rio Tapajós, Itaituba, Pará, Brasil, 1992

open access: yesCadernos de Saúde Pública
O objetivo do trabalho foi conhecer as condições de vida e de saúde de uma comunidade garimpeira e, particularmente, a superposição da contaminação Mércurial com outros agravos.
Elisabeth de O. Santos   +8 more
doaj  

Calcitonin‐like diuretic hormone influences reproduction in adult female Rhodnius prolixus

open access: yesInsect Science, EarlyView.
Highlights • CT/DH‐like immunoreactivity is present in female reproductive tissues • CT/DH receptor transcripts are expressed in the fat body and ovaries • RNAi knockdown of CT/DH receptors reduces egg number and hatching rate • Rhopr‐CT/DH increases RhoprVg1 and RhoprVgR expression in ovaries in vitro • Rhopr‐CT/DH stimulates oviduct contractions in a
Areej N. Al‐Dailami   +2 more
wiley   +1 more source

Home - About - Disclaimer - Privacy