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Antioxidant and antimicrobial activities of isolated constituents from the bark of Polyalthia longifolia
Bose Sankhadip,Byahatti Vivek,DSouza Marina,Bose Arti
International Journal of Green Pharmacy , 2010,
Abstract: The bark of Polyalthia longifolia is traditionally reputed to lower blood pressure, stimulate respiration and help in fever and skin diseases, diabetes, hypertension and vitiated conditions of vata and pitta. Preliminary phytochemical investigation of various extracts of the bark of Polyalthia longifolia showed the presence of flavonoids, alkaloids, steroids and carbohydrates. An attempt has been made to isolate flavonoids and perform antioxidant and antimicrobial activity of the same. We carried out DPPH radical scavenging assay, nitric oxide scavenging assay, metal chelating activity and reducing power activity in antioxidant activity. In antimicrobial activity, we used six microorganisms, which included two Gram positive, two Gram negative bacteria and two fungi. Both the isolated flavonoids exhibited a concentration-dependant free radical scavenging capacity. Isolated compounds showed promising results against various micro-organisms in comparison with standard drugs (Penicillin, Gentamicin and Ketoconazol).
Rapid Differentiation of Closely Related Citrus Genotypes by Fluorescence Spectroscopy  [PDF]
Dayse Drielly Souza Santana-Vieira, Débora Marcondes Bastos Pereira Milori, Paulino Ribeiro Villas Boas, Marina Fran?a e Silva, Magno Guimar?es Santos, Fernanda Amato Gaiotto, Walter dos Santos Soares Filho, Abelmon da Silva Gesteira
Advances in Bioscience and Biotechnology (ABB) , 2014, DOI: 10.4236/abb.2014.511105
Abstract: The differentiation of closely related Citrus genotypes is a meticulous, laborious, and time-consuming task that involves the assessment of complex traits such as growth, tolerance to stress, photosynthetic efficiency, yield, and many others. Such a task is generally accomplished either by analyzing specific features of adult plants or by applying molecular markers to young trees. On one hand, only after plants start yielding can distinct genotypes be differentiated by comparing their fruit sizes, shapes, taste, and the number of seeds. On the other hand, molecular markers are expensive, and demand expertise and time for the analysis of a larger number of plants. For these reasons, the development of techniques that could assist in an early, quick and accurate differen-tiation of closely related Citrus varieties is of utmost importance. In this context, laser-induced fluorescence spectroscopy (LIFS) is a promising technique, since it is rapid, highly sensitive, and inexpensive. Previous studies showed that LIFS can differentiate a variety of sweet orange. However, this new study aimed to determine LIFS accuracy in the differentiation and grouping of very closely varieties of four Sunki mandarin selections: Comum, Florida, Tropical, and Maravilha. Furthermore we compared the results with ISSR and SSR molecular markers for the same varieties. LIFS technique distinguished the four selections with accuracy greater than 70%. Only with molecular markers was possible distinguishing clearly Tropical from Maravilha, but not Comum from Florida selections. In this way the results suggest that LIFS may be a sound tool for helping the identification of closely Citrus varieties.
Estado, mercado e índices de sustentabilidade
Marina de Souza Sartore
Sociedade e Estado , 2012,
Abstract: Este artigo consiste em um estudo teórico que tem por objetivo colaborar para a reflex o sobre a necessidade de uma nova abordagem sociológica no Brasil, que n o apenas utilize os índices como instrumentos de análise para a pesquisa, mas que reflita sobre como a sociedade foi reorientada e reconfigurada a partir deles. Para delinear teoricamente esta nova linha de pesquisa, utilizo os trabalhos de Foucault, Hacking, Porter, Desrosières e Goede. Por fim, aponto o surgimento dos índices de sustentabilidade na esfera pública e, particularmente, na esfera financeira, vistos como possíveis elementos centrais para a compreens o das atuais configura es de poder na sociedade brasileira, a qual vem incorporando, cada vez mais, essas ferramentas de mensura o de diferentes aspectos da realidade social. This article consists of a theoretical study aiming to contribute to the debate on the need for a new sociological approach in Brazil which not only uses indices as analytical tools for researching, but also, thinks on how contemporary society was reoriented and reconfigured by them. I do that by theoretically drawing this new research area by using some ideas of Foucault, Hacking, Porter, Desrosières and Goede. Finally, I point out the emergence of sustainability indexes in the public sphere, as well as in the financial sphere, as central issues to the understanding of the current power configurations in the Brazilian society, which is, in turn, increasingly incorporating these tools to measure different aspects of social reality.
A sociologia dos índices de sustentabilidade The sociology of sustainability indices
Marina de Souza Sartore
Tempo Social , 2012,
Abstract: O colapso sofrido pela sociedade financeira com a crise dos subprimes em 2008 criou uma atmosfera desafiadora e favorável para o desenvolvimento de novas teorias e abordagens do sistema financeiro. Esse ambiente permite indagar sobre as possíveis ferramentas sociais e econ micas postas em prática para reerguê-lo. As práticas de Investimento Socialmente Responsável (ISR) podem ser uma delas. Alguns analistas financeiros buscam sobreviver ao ocaso de velhas práticas por meio da considera o de critérios sociais, ambientais e econ micos no momento de investir ou conceder crédito. Partindo da sociologia econ mica, este artigo sugere as bases para uma investiga o sobre quem s o estes atores sociais que trabalham para instituir uma interface entre finan as e sustentabilidade, ou ainda, que se esfor am para criar um mercado financeiro sustentável. Explora esta quest o no plano internacional, considerando os conselhos dos índices de sustentabilidade do mercado de a es no Brasil (ise), nos Estados Unidos (djsi), na Inglaterra (Ftse4Good) e na áfrica do Sul (jse sri) como espa os sociais que evidenciam características sociológicas daquela interface. A conclus o do artigo apresenta uma análise comparativa entre estes conselhos, constituídos, por sua vez, simultaneamente pela lógica do lieu neutre e pelas particularidades dos países que representam. The collapse in the financial markets caused by the subprime crisis in 2008 created a challenging and favorable atmosphere for the development of new sociological theories and approaches to studying the financial system. Although every sub-space of finance was badly affected, Socially Responsible Investing shows evidence of new solutions to the crisis. Some financial analysts now look to avoid the shrinkage faced by older investing practices by taking environmental, social and economic criteria into account at the moment of the investment. Adopting an approach based on economic sociology, this article offers the initial bases for a study about these social actors who have been forcefully working to create an interface between finance and sustainability, or in other words, a Sustainable Financial Market. The article explores this issueat international level by considering the North American, British, Southern African and Brazilian Corporate Sustainability Index Committees, which can be seen as social spaces in which the sociological characteristics of this interface become apparent. The article concludes by presenting a comparative study of these committees, which are constituted by lieu neutre (neutral ground) logic a
Dan a em a o - políticas de resistência no Encarnado de Lia Rodrigues
Marina Souza Lobo Guzzo
Movimento , 2010,
Abstract: El arte es una forma de comunicación entre artistas e interlocutores que se relacionan a partir de una red de personas, cosas, fuerzas y significados, en una experiencia de compartir lo sensible. El propósito de esta investigación era comprender cómo se construye el sentido político a través de una obra de arte, tomándose como ejemplo de un espectáculo de danza contemporánea, Incarnat, de Lia Rodrigues. Tomamos como punta de partida la idea de que un espectáculo de danza funciona como una red de materialidades y socialidades, y que los significados políticos se construyen a partir de una serie de acontecimientos y actores, lo que caracteriza el potencial transformador de la obra. La metodología utilizada en esta investigación se realizó con aportes de la Teoría Actor-Red (ANT) como un esfuerzo por sistematizar una forma de pensar y de actuar con la realidad, que, en lugar de interpretar el mundo, trata de describirlo teniendo en cuenta su hibridación Se analizaron algunas de estas acciones: elecciones temáticas y estéticas, la actuación del coreógrafo / bailarín en relación con su propio trabajo o con las políticas públicas de danza, la elección de espacios y lugares para ensayos, investigación, creación y presentación de las obras, además de las resonancias y repercusiones con el público y críticos.
Diferen?as individuais na aquisi??o de leitura com um sistema lingüístico em miniatura
Hanna, Elenice S.;Kohlsdorf, Marina;Quinteiro, Regiane S.;Fava, Virgínia M. D.;Souza, Deisy das Gra?as de;de Rose, Júlio C.;
Psicologia: Teoria e Pesquisa , 2008, DOI: 10.1590/S0102-37722008000100006
Abstract: this study reports the use of a miniature linguistic system in order to investigate reading acquisition. twenty college students, 10 from natural sciences and engineering (nse) and 10 from health and social sciences (hss) courses, learned to relate pictures and printed pseudo-words to dictated pseudo-words in conditional discrimination tasks presented by a computer. teaching sessions were interspersed with tests of reading new words formed by recombination of elements of taught words (generative recombination). nine students from nse and four from hss developed generalized reading after learning 12 relations with pseudo-words. reading scores of new words increased as number of taught words increased. both findings could be interpreted as effects of learning experiences with symbolic relations. differences between the nse and the hss students could also reflect motivational factors.
Domingos álvares, African healing, and the intellectual history of the Atlantic World
Marina de Mello e Souza
Varia Historia , 2012,
Abstract:
“Le donne dello schermo”. Uno studio di caso
Marina D'Amato
Storia delle Donne , 2007,
Abstract: This essay is about women’s rules, status, attitudes involved in Italian mass media communication in programs of information, fiction, entertainment. The research intended to analyse stereotypes, women’s representation in tv, (during two weeks in may 2007, in the public and private network: Rai, Mediaset, La7). I’ve analysed News of: Tg Rai, Mediaset e La7; entertainment for Rai Ricomincio da qui by Alda D’Eusanio, for Mediaset Uomini e donne by Maria De Filippi; for fiction in Rai3 Un posto al sole and in Rai1 Incantesimo. The method employed is content’s analysis. The choice was to get in depth of the audience for understanding women’s values, rules, aesthetic, comunicative actions and relationships.
Epidemiology and Culture; James A. Trostle - DOI: 10.3395/reciis.v2i1.164en
Marina D. Cardoso
RECIIS : Electronic Journal of Communication, Information & Innovation in Health , 2008,
Abstract:
La mortalidad por armas de fuego en Argentina entre 1990 y 2008
Zunino, Marina Gabriela;Souza, Edinilsa Ramos de;
Cadernos de Saúde Pública , 2012, DOI: 10.1590/S0102-311X2012000400006
Abstract: this is a descriptive epidemiological study of firearm mortality in argentina, 1990-2008. the study compared the firearm mortality percentages and rates between the country's jurisdictions. the data are from the office of health statistics and information, ministry of health. from 1990 to 2008 there were 358,484 deaths from external causes, of which 16.6% (59,339) were caused by firearms. the province of buenos aires showed the highest percentage and crude and adjusted rates. the jurisdictions in the pampeana region (including the province of buenos aires) showed a more homogeneous profile, similar to that of the country as a whole, with an increase in the rates from 1999 to 2002 and a decrease from 2003 to 2006. these findings are partially explained by the country's deteriorating socioeconomic conditions in the late 20th century, with a greater impact on buenos aires, one of the provinces of argentina with the greatest development and economic dynamism. the situation in buenos aires was aggravated by the fact that the province has one of the country's most repressive police forces.
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