Active Principle
Mostrando 1-12 de 194 artigos, teses e dissertações.
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1. Heterostructured Langmuir-Blodgett Films of Ruthenium Bipyridine with 1,3,4-Naphthooxadiazole-Derived Amphiphile Complex as a Charge Storage Electrode
The molecular control in Langmuir-Blodgett (LB) films may be exploited in charge storage electrodes provided a suitable choice of molecular architecture and components is made. In this paper, we employed a naphtyl-1,3,4-oxadiazole amphiphile (NFT1) and its complex [Ru(bpy)2NFT1]PF6 (RuNFT1) (bpy = 2,2’-bipyridine) in heterostructured LB films in a proof-of
J. Braz. Chem. Soc.. Publicado em: 2020-11
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2. MAXIMIZATION OF ESSENTIAL OIL ANTIOXIDANT CAPACITY VIA STAR ANISE HYDRODISTILLATION
Abstract Chinese star anise essential oil (EO) is prized for its pleasant aroma and mainly due to its antioxidant capacity (AC), which can combat cancer and treat neurodegenerative diseases. This study shows the innovative approach of optimizing not only EO yield, but also to therapeutic activity. The product obtained follows the principle of the Pure Food a
Braz. J. Chem. Eng.. Publicado em: 13/01/2020
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3. Facebookland: the bizarro-linguistic world
Resumo O presente artigo investiga a dinâmica do romeno contemporâneo centrando-se em várias estruturas linguísticas utilizadas em sites de mídias sociais, nos quais conteúdos específicos e estratégias de interação particulares se fazem presentes. O artigo é parte de um projeto mais amplo dedicado ao estudo do empobrecimento linguístico (que afet
Alea. Publicado em: 11/11/2019
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4. Entre os enunciados políticos e os corredores de liberdade nas práticas curriculares dos professores
Resumo A concretização do princípio de uma educação democrática fundada na igualdade de oportunidades de sucesso para todos tem justificado discursos políticos que, referindo-se à autonomia das escolas e dos professores, reconhecem a importância do seu papel na construção de práticas curriculares adequadas aos diferentes contextos e característi
Educ. Pesqui.. Publicado em: 30/05/2019
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5. Effect of Withania somnifera on gentamicin induced renal lesions in rats
ABSTRACT Gentamicin induced renal complications are well known in humans and animals. Medicinal properties of Withania somnifera (L.) Dunal, Solanaceae, are recognized to improve renal functions. However, the pharmacological function of W. somnifera is not completely understood. We sought to unravel medicinal therapeutic function of W. somnifera on gentamici
Rev. bras. farmacogn.. Publicado em: 27/05/2019
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6. The Use of Near Infrared Spectroscopy and Multivariate Calibration for Determining the Active Principle of Olanzapine in a Pharmaceutical Formulation
The aim of this study was to quantitatively determine the olanzapine in a pharmaceutical formulation for assessing the potentiality of near infrared spectroscopy (NIR) combined with partial least squares (PLS) regression. The method was developed with samples based on a commercial formulation containing olanzapine and seven excipients. Laboratory and commerc
J. Braz. Chem. Soc.. Publicado em: 2017-05
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7. Identification of a fat-soluble fraction of Sparganium stoloniferum that inhibits cervical cancer HeLa cells
ABSTRACT Context The rizoma of Sparganium stoloniferum has been used as a traditional Chinese medicinal herb for thousands of years. Sparganium stoloniferum is a stasis-breaking drug to treat a wide range of diseases including cancer,however, its activity of extract on cervical cancer HeLa cells and the mechanisms remains unknown. Objective This study aime
Braz. arch. biol. technol.. Publicado em: 07/07/2016
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8. Isolation and characterization of 2-hydroxy-9,10-anthraquinone from Streptomyces olivochromogenes (ERINLG-261) with antimicrobial and antiproliferative properties
Abstract Currently Streptomyces is one of the most important antibiotic producing microorganisms against several diseases. In the present study Streptomyces olivochromogenes ERINLG-261 was isolated from the soil samples of the Mudumalai hills, Western Ghats, India. Morphological, physiological, biochemical and 16S rRNA studies strongly suggested that this is
Rev. bras. farmacogn.. Publicado em: 2016-06
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9. Population health diagnosis with an ecohealth approach
OBJECTIVE To analyze the characteristics of health diagnosis according to the ecohealth approach in rural and urban communities in Mexico.METHODS Health diagnosis were conducted in La Nopalera, from December 2007 to October 2008, and in Atlihuayan, from December 2010 to October 2011. The research was based on three principles of the ecohealth approach: trans
Rev. Saúde Pública. Publicado em: 30/10/2015
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10. In vitro photoprotective effects of Marcetia taxifolia ethanolic extract and its potential for sunscreen formulations
AbstractThe species Marcetia taxifolia (A. St.-Hil.) DC., Melastomataceae, which is endemic of the rupestrian fields of northeastern Brazil, contains a significant amount of flavonoids. In this work, the potential of the ethanolic extract of M. taxifolia as the active principle in a sunscreen photoprotection (UV-A and UV-B) formulation was investigated. The
Rev. bras. farmacogn.. Publicado em: 2015-08
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11. BIS(4-FLUOROPHENYLSULFONYLDITHIOCARBIMATO)ZINCATE(II) SALTS: NEW ANTIFUNGALS FOR THE CONTROL OF
Botrytis BLIGHTBotrytis blight or gray mold is a highly destructive disease caused by
Botrytis spp., that infects flowers, trees vegetables, fruit, especially grapevines and strawberry. Three new compounds with general formula (A)2[Zn(4-FC6H4SO2N=CS2)2], where A = PPh3CH3<Quím. Nova. Publicado em: 2015-07
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12. ¿Qué puede aportar la semiótica triádica al estudio de la comunicación mediática?
The text tries to find out what is the relevance the triadic model of meaning generation or semiotic created by C.S. Peirce for the study of media communication. The aim is to show its analytical pertinence through the consideration of some contemporary media studies, followed by a brief discussion of a TV format, the reality show, as an illustration. In eve
Galáxia (São Paulo). Publicado em: 2013-06