Cpe
Mostrando 13-24 de 266 artigos, teses e dissertações.
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13. Development of a Novel and Simple Electroanalytical Procedure for the Determination of Copper in Biofuel Employing a Sensor Based on Vulcan Functionalized with Carbazone
A novel and simple electroanalytical method for the determination of Cu2+ in biodiesel samples by stripping voltammetric analysis was developed. The method employs a carbon paste electrode (CPE) modified with Vulcan carbon, previouly functionalized with carbazone (CBZ). The CPE/Vulcan-CBZ sensor promoted a significant increase in the analytical signal obtain
J. Braz. Chem. Soc.. Publicado em: 2018-04
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14. Isolamento e genotipagem de Clostridium perfringens and Clostridium difficile em macacos-prego (Sapajus spp.)
RESUMO: A importância de Clostridium perfringens e C. difficile para a maioria das espécies silvestres ainda não está clara. O objetivo do presente estudo foi isolar e genotipar C. perfringens e C. difficile em amostras de fezes de macacos-prego (Sapajus flavius e Sapajus libidinosus) de vida livre e criados em cativeiros no Brasil. Dez S. flavius de vi
Cienc. Rural. Publicado em: 30/11/2017
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15. Desempenho Social de Pré-escolares em Situações Estruturadas: Estimativas de Mães e Professoras
RESUMO Identificar variáveis que influenciam a avaliação de comportamento infantil tem implicações para diagnóstico e intervenção psicológica. Buscou-se avaliar a estimativa de mães e professoras sobre desempenho social de crianças com e sem comportamentos-problema em cinco situações sociais estruturadas, analisando convergências e divergência
Psic.: Teor. e Pesq.. Publicado em: 16/10/2017
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16. Ultrasound-assisted aqueous enzymatic extraction of oil from perilla seeds and determination of its physicochemical properties, fatty acid composition and antioxidant activity
Abstract Response surface methodology (RSM) was used to optimize ultrasound-assisted aqueous enzymatic extraction (UAAEE) conditions for perilla seed oil. Under the optimum conditions—which were a liquid-to-solid ratio of 4.4:1, a hydrolysis time of 2.66 h, a hydrolysis temperature of 50.87 °C and an ultrasound treatment time of 24.74 min—an oil yield o
Food Sci. Technol. Publicado em: 20/07/2017
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17. Proximate analysis, mineral composition, phytochemical contents, antioxidant and antimicrobial activities and GC-MS investigation of various solvent extracts of cactus cladode
Abstract Cladodes Powder Extracts (CPE) are known for their medicinal properties such as being an auxiliary treatment for obesity and gastrointestinal or cardiovascular disorders as well as lowering cholesterol levels. The presented results proved that CPE was found to be a rich source of carbohydrate, ash, moisture and minerals namely Magnesium, Calcium and
Food Sci. Technol. Publicado em: 29/05/2017
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18. Electrodeposition of Gold Films from a Glycerol Solution on Carbon Paste Electrode and the Effect of Chemical and Electrochemical Parameters of Electrodeposition on the Electrode Performance in Potassium Ferrocyanide Solution
The gold electrodeposition process from a glycerol solution on a carbon paste electrode (CPE) was investigated by voltammetry and the morphologies of the electrodeposits were analyzed by scanning electron microscopy (SEM). Voltammetric study indicated that AuCl4− was reduced to Au0 and the process was mixed controlled (mass transport and electron transfer)
J. Braz. Chem. Soc.. Publicado em: 2017-01
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19. O Compromisso Pró-Ecológico nas Palavras de Seus Praticantes
Resumo: O compromisso pró-ecológico (CPE) compreende uma relação de caráter positivo que as pessoas estabelecem com o meio ambiente, manifestada por via de práticas de cuidado ambiental. Para aprofundar o conhecimento sobre esse fenômeno psicossocioambiental, o objetivo foi explorar as definições sobre o CPE a partir do ponto de vista de pessoas com
Paidéia (Ribeirão Preto). Publicado em: 2017
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20. CARACTERIZAÇÃO MORFOLÓGICA DE FONTES DE RESISTÊNCIA DE MELOEIRO A Pseudoperonospora cubensis
RESUMO: O míldio, causado pelo fungo Pseudoperonospora cubensis é uma das principais doenças foliares que acometem a cultura do meloeiro no período chuvoso da região Nordeste brasileira. O objetivo do presente trabalho foi identificar e caracterizar morfologicamente fontes de resistência de meloeiro a P. cubensis. Trinta e seis acessos e quatro cultiva
Rev. Caatinga. Publicado em: 2015-09
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21. In-Vitro Antiviral Activities of Extracts of Plants of The Brazilian Cerrado against the Avian Metapneumovirus (aMPV)
ABSTRACTAvian metapneumovirus (aMPV) is a negative-sense single-stranded RNA enveloped virus of the Metapneumovirus genus belonging to theParamyxoviridae family. This virus may cause significant economic losses to the poultry industry, despite vaccination, which is the main tool for controlling and preventing aMPV. The aim of this study was to evaluate the a
Rev. Bras. Cienc. Avic.. Publicado em: 2015-09
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22. Determination of Polycyclic Aromatic Hydrocarbons in Groundwater Samples by Gas Chromatography-Mass Spectrometry After Pre-Concentration Using Cloud‑Point Extraction with Surfactant Derivatization
A cloud-point extraction (CPE) method using the surfactant (30)p-tert-octylphenol polyoxyethylene (OPEO30) was proposed as the preceding step for the determination of polycyclic aromatic hydrocarbons (PAHs) by gas chromatography-mass spectrometry (GC-MS). Given the need for surfactant derivatization before the chromatographic analysis, the reaction condition
J. Braz. Chem. Soc.. Publicado em: 2015-05
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23. Fresh, equilibrated and post-thaw sperm quality of Brycon orbignyanus (Valenciennes, 1850) and Prochilodus lineatus (Valenciennes, 1837) treated with either salmon GnRHa and domperidone or pituitary extract
O efeito de doses reduzidas de Ovaprim® (GnRHa + domperidona) na liberação do sêmen de Brycon orbignyanus e Prochilodus lineatus foi avaliado. Além disso, a qualidade do sêmen foi comparada entre as amostras frescas, equilibradas e descongeladas. Os machos receberam dose única e reduzida de Ovaprim® (0,125 ou 0,25 ml/kg); os machos-controle receberam
Neotrop. ichthyol.. Publicado em: 31/03/2015
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24. Bovine Herpesvirus 4 in Parana State, Brazil: case report, viral isolation, and molecular identification
Bovine Herpesvirus 4 (BoHV-4) is a member of Gammaherpesvirinaesub-family and belongs to genus Rhadinovirus. This virus has been associated with different clinical manifestations and research activity has put forward a strong correlation among virus infection, postpartum metritis, and abortion. The goal of this work was to characterize a virus strain isolate
Braz. J. Microbiol.. Publicado em: 31/03/2015