Dichlorvos
Mostrando 1-12 de 30 artigos, teses e dissertações.
-
1. Effects of subchronic inhalation exposure to an organophosphorus insecticide compound containing dichlorvos on wistar rats’ otoacoustic emissions
Resumo Introdução Considerando que estudos anteriores sugerem que pesticidas podem causar distúrbios auditivos em humanos, além da falta de estudos que comprovem os mecanismos específicos de lesão e a dificuldade em separar fatores etiológicos concomitantes dos danos auditivos, como ruído e vibração, é importante desenvolver estudos que usem mode
Brazilian Journal of Otorhinolaryngology. Publicado em: 2022
-
2. Dichlorvos (DDVP) residue removal from tomato by washing with tap and ozone water, a commercial detergent solution and ultrasonic cleaner
Abstract Dichlorvos (DDVP) is one of the most consumption chlorinated organophosphate insecticide used on tomato. The knowledge about the influence of postharvest household processes on the levels of DDVP residues in vegetables is required to estimate dietary exposure. In this study, the removal of sprayed dichlorvos (DDVP) on tomato by washing with tap, ozo
Food Sci. Technol. Publicado em: 20/07/2017
-
3. PESTICIDE RESIDUES IN CONVENTIONALLY AND ORGANICALLY GROWN TOMATOES IN ESPÍRITO SANTO (BRAZIL)
The aim of this study was to investigate the presence of acephate, carbaryl, carbendazim, chlorpyrifos, dichlorvos, fenpropathrin, methamidophos and permethrin in conventionally and organically grown tomatoes from Espírito Santo, Brazil, between May 2012 and April 2013. QuEChERS sample preparation was used and analysis was performed by LC-MS/MS and GC-MS
Quím. Nova. Publicado em: 2015-07
-
4. Flow Injection Analysis System for Screening Organophosphorus Pesticides by their Inhibitory Effect on the Enzyme Acethylcholinesterase
A flow-injection spectrophotometric procedure was developed for screening organophosphorus pesticides. The method is based on the inhibition of acetylcholinesterase immobilized on controlled porous glass beads with acetylcholine chloride as the substrate. Methyl parathion, chlorpyrifos, malathion and dichlorvos have been tested. The analytical peak height fo
J. Braz. Chem. Soc.. Publicado em: 2015-03
-
5. Efeitos de uma formulação pulverização sobre os parâmetros reproductivos de uma população susceptível de Rhipicephalus (Boophilus) microplus
É relativamente pequeno o número de estudos que enfatiza os danos que uma formulação acaricida spray pode desencadear sobre os parâmetros reprodutivos das teleóginas. O presente estudo teve como objetivo avaliar os efeitos deletérios de uma formulação spray comercial (dichlorvos 60% + Clorpirifós 20%), sobre os parâmetros reprodutivos de uma popul
Rev. Bras. Parasitol. Vet.. Publicado em: 2014-12
-
6. Avaliação clínica e laboratorial do óleo essencial da lippia sidoides cham em dermatites parasitarias de cães (Canis familiares).
The Lippia sidoides Cham (rosemary pepper) is a plant present in part of the semi-arid on Brazil northeastern. Their leaves have shown a high potential in the treatment of dermatitis in humans. This study aimed to evaluate the biological activity of the L. sidoides Cham oil on ectoparasites of domestic dogs (Canis familiares) and antimicrobial activities on
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
-
7. Avaliação da exposição ocupacional a praguicidas organofosforados em estufas de flores na região do Alto Tietê - São Paulo / Evaluation of occupational exposure to organophosphate pesticides in greenhouses of flower in the Alto Tietê region, state of S. Paulo, Brazil
The state of São Paulo - Brazil, accounts for 70% of domestic production of flowers and ornamental plants. Currently, these crops occupy 7.5 thousand hectares and over 50% of this area is cultivated in greenhouses. This market has an average of 8.000 producers and generates around 200.000 jobs. Greenhouses are microcosms designed to provide environmental co
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 12/09/2011
-
8. A Biosensor Using Poly(4-Aminophenol)/acetylcholinesterase modified graphite electrode for the detection of dichlorvos
The properties of poly(4-aminophenol) modified graphite electrode as material for the immobilization of acetylcholinesterase were investigated by the Cyclic Voltammetry, Electrochemical Impedance Spectroscopy and Atomic Force Microscopy. The polymer was deposited on graphite electrode surface by the oxidation of 4-aminophenol and then acetylcholinesterase wa
Brazilian Archives of Biology and Technology. Publicado em: 2011-12
-
9. Susceptibility of Alphitobius diaperinus (Panzer) (Coleoptera, Tenebrionidae) to cypermethrin, dichlorvos and triflumuron in southern Brazil
Suscetibilidade de Alphitobius diaperinus (Panzer) (Coleoptera, Tenebrionidae) a cipermetrina, diclorvós e triflumurom no sul do Brasil. O cascudinho, Alphitobius diaperinus (Panzer), é uma importante praga em aviários no Brasil. A suscetibilidade do cascudinho à cipermetrina, diclorvós e triflumurom foi avaliada em oito aviários do Estado do Paraná,
Revista Brasileira de Entomologia. Publicado em: 2011-03
-
10. Effect of Dichlorvos on the acetylcholinesterase from tambaqui (Colossoma macropomum) Brain.
Dichlorvos is an acutely toxic organophosphorous pesticide that is known as a classical acetylcholinesterase (AChE; EC 3.1.1.7) inhibitor. Here, the brain AChE from the important Amazonian fish tambaqui (Colossoma macropomum) was assayed in the presence of this insecticide and also of deltamethrin, a classical sodium and potassium channel inhibitor (negative
Environmental Toxicology and Chemistry. Publicado em: 2011
-
11. Histopathological changes in the gill and liver tissues of freshwater fish, Cirrhinus mrigala exposed to dichlorvos
The histopathological effects of dichlorvos, an organophosphate pesticide, on the gill and liver tissues in Cirrhinus mrigala were determined by light microscopy. The fishes were exposed to sublethal concentrations (0.91 and 1.82 ppm) of dichlorvos for 10 days with parallel untreated control. No histopathological effects were observed in control group. Hyper
Brazilian Archives of Biology and Technology. Publicado em: 2009-10
-
12. Controle de Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) no canil da Escola de Veterinária da UFMG, Belo Horizonte, Minas Gerais, Brasil
O presente estudo teve como proposta controlar uma infestação natural de Rhipicephalus sanguineus em um canil pertencente à Escola de Veterinária da UFMG, com uma área de 72 m² e 25 cães de diversas raças. Um teste de sensibilidade a produtos acaricidas foi aplicado em uma amostra de carrapatos capturados no canil. Dos produtos testados: Amitraz 12,5
Revista Brasileira de Parasitologia Veterinária. Publicado em: 2008-03