Results 41 to 50 of about 18,259 (238)

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

Identification and Investigation of the Intrinsic Receptor Activation Potential and Metabolization of the New Oxo‐Pyridyl Synthetic Cannabinoid Receptor Agonist CH‐FUBBMPDORA

open access: yesDrug Testing and Analysis, Volume 17, Issue 9, Page 1623-1639, September 2025.
Another Chinese generic ban‐evading SCRA, CH‐FUBBMPDORA, has emerged. This study reports its first identification in Europe, its analytical characterization (NMR, Raman, FTIR, GC–MS, and HRMS), its cannabinoid activation potential in a βarr2 recruitment assay, and its metabolization profile.
Marie H. Deventer   +13 more
wiley   +1 more source

Evolució dels coneixements sobre metalls en toxicología [PDF]

open access: yes, 2017
Els metalls han estat utilitzats per la humanitat només des de fa pocs millers d'anys. Alguns han tingut tanta importància que han donat nom a períodes històrics: edat del bronze, edat del ferro.
Corbella i Corbella, Jacint, 1937-   +1 more
core  

Mort als aiguamolls : quan el plom de la caça es converteix en un verí [PDF]

open access: yes, 2008
Els milers de milions de perdigons de plom que s'usen cada any per caçar són petites trampes letals per als ocells que accidentalment els ingereixen. Primera causa d'enverinament entre aquests animals a tot el món, la solució passa necessàriament per ...
Guitart, Raimon
core   +2 more sources

Highly Pathogenic Avian Influenza A (H5N1) Infection in Bearded Vultures in Spain

open access: yesZoonoses and Public Health, Volume 72, Issue 6, Page 544-549, September 2025.
ABSTRACT We report mortality in bearded vultures ( Gypaetus barbatus ) associated with highly pathogenic avian influenza HPAI A H5N1 clade 2.3.4.4b, responsible for the current HPAI panzootic. Between April and May 2022, a total of five bearded vultures from Spain, four free‐ranging and one captive individual, were found dead in their nest or with ...
Remigio Martínez   +9 more
wiley   +1 more source

ENSINO DA TOXICOLOGIA NO CURSO MÉDICO: UMA PROPOSTA DE ATUALIZAÇÃO

open access: yesRevista Brasileira de Educação Médica, 2021
Resumo: Com base na experiência de serviço, pesquisa e ensino na área de toxicologia, acumulada nos últimos anos, o autor enfatiza a necessidade do médico ter conhecimentos específicos de toxicologia - noções básicas, noções da sua aplicação ...
Luiz Augusto Cassanha Galvão
doaj   +1 more source

Medicinal Plants in Pregnancy and Lactation: Perception of the Health Risk and Practical Educational Group in Araraquara, São Paulo State, Brazil [PDF]

open access: yes, 2014
The use of medicinal plants among pregnant women and lactating is a common practice in diverse countries. However, many medicinal plants are contraindicated during pregnancy and lactating, due to various adverse effects, such as teratogenic ...
Cavaleiro, Carlos   +5 more
core   +1 more source

The influence of aridity on plant intraspecific chemical diversity supports adaptive differentiation and convergent evolution

open access: yesPlant Biology, Volume 27, Issue 5, Page 761-772, August 2025.
Pyrrolizidine alkaloid composition in the invasive plant Senecio pterophorus is coherent with a pattern of adaptive differentiation in response to aridity, as shown in an environmental gradient in the native range and across three cross‐continental introductions, under natural and common garden conditions, by accounting for the population neutral ...
E. Castells, P. Sanchez‐Martinez
wiley   +1 more source

Classificação de resíduos sólidos industriais com base em testes ecotoxicológicos utilizando Daphnia magna: uma alternativa

open access: yesBiotemas, 2005
O tratamento e a disposição final adequada dos resíduos sólidos industriais dependem de sua classificação em classe I ou II. Esta classificação é proposta pela NBR 10.004, contudo, é complexa e demanda tempo.
Letícia Flohr   +4 more
doaj  

Intoxicação cúprica em ovinos via concentrado e sal mineral: Relato de caso

open access: yesPubvet, 2018
O presente relato teve por objetivo descrever o quadro clínico-patológico da intoxicação por cobre em ovinos. A ocorrência mais comum de intoxicação por cobre está relacionada à ingestão de concentrado e suplementos minerais destinados a bovinos.
Daniel Lúcio do Nascimento   +5 more
doaj   +1 more source

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