Chemical Substance
Mostrando 1-12 de 200 artigos, teses e dissertações.
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1. How to prevent the malignant progression of bipolar disorder
There is increasing recognition that, in a high percentage of cases, bipolar disorder is a progressive illness. Multiple types of sensitization (or increased reactivity to repetition of the same stimulus) drive illness progression. One of the clearest is that of episode sensitization, where increased numbers of prior episodes are associated with: faster recu
Braz. J. Psychiatry. Publicado em: 2020-10
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2. The effectiveness of eugenol against cisplatin-induced ototoxicity
Resumo Introdução: A ototoxicidade refere-se ao dano celular ou comprometimento da função da orelha interna associado a qualquer agente terapêutico ou substância química e ainda representa o principal efeito colateral que restringe o uso da cisplatina. Objetivo: O objetivo deste estudo foi realizar uma investigação bioquímica, funcional e histopa
Braz. j. otorhinolaryngol.. Publicado em: 13/12/2019
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3. Petiveria alliacea, a plant used in Afro-Brazilian smoke rituals, triggers pulmonary inflammation in rats
Abstract Petiveria alliacea L., Phytolaccaceae, a plant used in Afro-Brazilian religious smoke rituals is reported to have "harmonic properties" (anxiolytic effect) by ethnobotanical survey. In the present work, we analyzed the chemical composition of volatiles produced by leaves of P. alliacea, using headspace gas chromatography/mass spectrometry and its po
Rev. bras. farmacogn.. Publicado em: 09/12/2019
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4. DESENVOLVIMENTO DE METODOLOGIA DE REVELAÇÃO DE IMPRESSÃO DIGITAL LATENTE COM CHALCONAS
Fingerprints are unique for each individual contributing to human identification in forensic cases. Visualization of latent fingerprints usually involves the use of a chemical substance that creates a contrast between fingerprint residues and the surface on which the print was deposited. Commercial powders used as fingerprint developers by papilloscopy have
Quím. Nova. Publicado em: 21/10/2019
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5. Obtaining of Fe3O4@C Core-Shell Nanoparticles as an Adsorbent of Tetracycline in Aqueous Solutions
Tetracycline is used to treat various diseases in animals and humans, so its high use causes this substance to be frequently found in effluents and in potable water reservoirs, causing serious problems for human health and the environment. Many processes are applied and evaluated in an attempt to removal tetracycline found in environment, such as adsorption.
Mat. Res.. Publicado em: 30/09/2019
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6. Fotodegradação de hidrogel de poliacrilamida na presença de substâncias químicas para o uso na agricultura
RESUMO Utilizado na agricultura como condicionante do solo, a poliacrilamida, constituinte básico do hidrogel, tem a característica de absorver, por processo físico, água e a estocar para as plantas conforme sua necessidade hídrica. Entretanto, a poliacrilamida sofre degradação de sua cadeia, devido à ação da radiação ultravioleta e de sais prese
Matéria (Rio J.). Publicado em: 16/09/2019
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7. Chemical composition of propolis extract and its effects on epirubicin-induced hepatotoxicity in rats
ABSTRACT Propolis is a natural substance, produced by honeybees from the resin of various plants. The purpose of this study was to determine the chemical composition and evaluate the hepatoprotective effect of ethyl acetate extract of propolis from Tigzirt, against the toxicity induced by epirubicin which is a anticancer agent, and belongs to the family of a
Rev. bras. farmacogn.. Publicado em: 26/08/2019
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8. A abordagem dos termos dependência química, toxicomania e drogadição no campo da Psicologia brasileira
Resumo O consumo de substância psicoativa é um fenômeno abrangente na sociedade brasileira, existindo diversos modos de nomeá-lo, destacando-se: toxicomania, drogadição e dependência química. O objetivo deste estudo é investigar como a Psicologia aborda o fenômeno, bem como a compreensão desses termos. Foi realizada revisão de literatura por meio
Psicol. USP. Publicado em: 11/04/2019
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9. Biological Synthesis of Selenium Nanoparticles and Evaluation of their Bioavailability
ABSTRACT Nanoparticles due to their unique properties have attracted more attention and their bacterial biosynthesis is more favorable because is environmental friendly and the size and yield of nanoparticles can be optimized. The aim of the present study was biosynthesis of Selenium nanoparticles using Bacillus cereus. For this purpose, bacterial culture wa
Braz. arch. biol. technol.. Publicado em: 14/06/2018
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10. Comparison of bioactive compounds content in leaf extracts of Passiflora incarnata, P. caerulea and P. alata and in vitro cytotoxic potential on leukemia cell lines
ABSTRACT Passiflora caerulea L., P. alata Curtis and P. incarnata L. (synonym for P. edulis Sims), are the most popular representatives of the Passiflora genus in South America. In recent years, a growing attention is paid to the biological activity and phytochemical profiles of crude extracts from various species of Passiflora in worldwide. The aim of this
Rev. bras. farmacogn.. Publicado em: 2018-04
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11. Contamination and Soil Biological Properties in the Serra Pelada Mine - Amazonia, Brazil
ABSTRACT Discovered in 1980 and unleashed an utter gold rush of the modern era, Serra Pelada was the largest open-air mine in Brazil. About 80,000 gold prospectors worked there until 1984, when the gold pits were flooded. The environmental impact caused by mining inflicted irreversible damage to the ecosystem, with the formation of a large lake and piles of
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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12. ABORDAGEM DIDÁTICA PARA O DESENVOLVIMENTO DE MOLÉCULAS BIOATIVAS: REGRA DOS CINCO DE LIPINSKI E PREPARAÇÃO DE HETEROCICLO 1,3,4-OXADIAZOL EM FORNO DE MICRO-ONDAS DOMÉSTICO
In Brazil, the development of new chemical entities (NEQ) is still limited to small advances in the academic and public research sectors, the authors understand that this is a sector of the pharmaceutical industry that needs encouragement. Accepting that education transforms society, educate students in the development of bioactive molecules, it’s a way to
Quím. Nova. Publicado em: 2018-01