Results 71 to 80 of about 4,914 (198)

A influência da composição do esteatito (pedra-sabão) na migração de minerais para os alimentos: minerais do esteatito The influence of the steatite (soapstone) composition in mineral migration to food meal: minerals from steatite

open access: yesCerâmica, 2006
O esteatito, rocha metamórfica composta por talco, dolomita e anfibólios, é abundantemente encontrado no Quadrilátero Ferrífero brasileiro, em Minas Gerais.
K. D. Quintaes
doaj   +1 more source

Recreational Drug Use at a Music Festival: A Dual Approach Using Hair Biomarkers Analysis and Participant Self‐Reported Drug Use

open access: yesDrug Testing and Analysis, Volume 18, Issue 7, Page 831-840, July 2026.
Combined self‐report and hair analysis in festival attendees (n = 249) revealed substantial discrepancies in drug use reporting, particularly for stimulants and dissociatives. This integrated approach enhances detection of poly‐drug use and provides a more reliable basis for monitoring and harm‐reduction strategies.
A. Y. Simão   +4 more
wiley   +1 more source

Adulterants in crack cocaine in Brazil

open access: yesTrends in Psychiatry and Psychotherapy
Introduction Brazil is the world’s biggest consumer of crack cocaine, and dependence is a major public health issue. This is the first study to investigate the prevalence of potentially harmful adulterants present in hair samples from Brazilian patients
Marcelo Ribeiro   +10 more
doaj   +1 more source

ZOOLOGIA DOS INVERTEBRADOS: SISTEMÁTICA E TOXICOLOGIA À FILOGENÉTICA

open access: yesPeriódicos Brasil. Pesquisa Científica
Este trabalho científico ora apresentado, sob o título de Zoologia dos Invertebrados: sistemática e toxicologia à filogenética, indispensável como subsídios técnico-científico complementar aos estudos e projetos para docentes e discentes nos mais ...
Antônio de Almeida Sobrinho   +9 more
semanticscholar   +1 more source

Blubber Cellular Integrity Through Decomposition and Its Implication for Histological Applications: A Study of Stranded Stock A Humpback Whales (Megaptera novaeangliae)

open access: yesMarine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Marine mammal strandings can provide unique and valuable insights into individual and population health, ranging from infectious diseases to anthropogenic threats. However, the level of decomposition of carcasses can interfere with the assessment of important indicators, such as an individual's nutritional status.
Lara Bennati‐Madureira   +8 more
wiley   +1 more source

Thrombospondin‐4 is upregulated in abdominal aortic aneurysm: A vasoprotective response with potential therapeutic relevance

open access: yesBritish Journal of Pharmacology, Volume 183, Issue 12, Page 3321-3339, June 2026.
TSP4 is upregulated in human and experimental AAA. TSP4 knockdown accelerated AAA formation and exacerbated both vascular inflammation and remodelling, emphasizing that TSP4 upregulation may represent a protective response against AAA. Our findings suggest that preserving TSP4 could be a useful strategy in the clinical management of AAA.
Laia Blanco‐Casoliva   +10 more
wiley   +1 more source

INTOXICAÇÃO ESPONTÂNEA POR Combretum glaucocarpum Mart. [sin.: Thiloa glaucocarpa (Mart.) Eichler] (Combretaceae) EM BOVINOS

open access: yesCiência Animal Brasileira, 2017
O presente trabalho tem por objetivo descrever, pela primeira vez no Estado do Tocantins, as características epidemiológicas, clínicas e patológicas de um surto de intoxicação espontânea por Combretum glaucocarpa em bovinos.
Michel Abdalla Helayel   +6 more
doaj   +1 more source

Reduced fecundity associated with Wolbachia infection in a Neotropical drosophilid Redução da fecundidade associada à infecção por Wolbachia em um drosofilídeo Neotropical

open access: yesEcological Entomology, Volume 51, Issue 3, Page 475-488, June 2026.
Using multiple infected and uninfected Drosophila sturtevanti lines, we investigated (i) the impact of Wolbachia on fecundity and (ii) its effects relative to antibiotic treatment. Based on over 1680 dissected ovaries, fecundity was similar between infected and uninfected flies.
Letícia Carlesso de Paula Sena   +4 more
wiley   +1 more source

Avaliação histopatológica do baço, coração e encéfalo de tilápia Oreochromis niloticus (Linnaeus, 1758) exposta ao cloreto de mercúrio

open access: yesBoletim do Instituto de Pesca, 2018
O presente estudo verificou os efeitos tóxicos do cloreto de mercúrio em concentrações subletais sobre o quadro histológico da tilápia Oreochromis niloticus, analisando o baço, o coração e o encéfalo dos organismos.
Danielle de Carla Dias   +7 more
doaj  

Toxicología y ergonomía

open access: yesLaboreal, 2020
Para elaborar los valores limites de exposicion a productos toxicos, nos apoyamos generalmente en el siguiente razonamiento : expuesto a un producto, que presenta una media de tal concentracion, un operador medio presentara trastornos funcionales ...
Robert Villatte
semanticscholar   +1 more source

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