Entenda RP: campanha de difusão da profissão de Relações Públicas

The profession of public relations presents itself in Brazil currently as a profession in expansion. However, by it’s time of performance, it should already be instated and legitimatized by society like other areas that even though appeared later, are already known and understood. Therefore, this project intends to seek for answers about the current situation, analyzing since it’s appearance in Brazil until now a days. With this analysis of the whole historic trajectory it is possible to understand the many movements that occur today in the area of public relations that are constantly searching for a legitimating and valued profession. However in this context surfaces a paradox: How to value something that is not known? So this project starts up again a campaign of divulgation of public relations promoted by the ABRP (Brazilian Association of Public Relations), now on the internet using the social networks, seeking to have a wider audience, interaction and reach. By this campaign it is possible to show to different publics the existence and relevance of the profession in the Brazilian context in objective and practice way making it more comprehensible in Brazil

Uso das técnicas de difusão em filmes finos por gradiente de concentração (DGT) para avaliação de metais disponibilizados em passivos de mineração de Urânio

The objective of this work is to use the technique of diffusion by concentration gradient films (DGT) for evaluation of dissolved urano in hydro bodies. For this we chose this work as a systems investigation of water bodies in the region of Poços de Caldas, state of Minas Gerais, because, there is a large amount of mining of uranila. The technique to be used to evaluate the potential for dissolved metals analysis involves the use of passive samplers with application in in situ. This allows detection with excellent sensitivity and selectivity allowing the determination of the labile fraction of dissolved metals

Determinação de complexos de urânio em solo usando a técnica de difusão em filmes finos por gradiente de concentração (DGT)

This paper proposes to assess the lability of complexes of uranium in soil using the technique of Diffusion in Thin Films by concentration gradients (DGT) in the vicinity the Osamu Utsumi mine, located in the municipality of Caldas - MG. The technique is based on the 1ª Fick Law, where metal complexes diffuse through a gel, which in turn is adsorbed on a resin. The metals adsorbed are recovered by an analytical technique and quantified by optical emission spectrometer with plasma inductively coupled (ICP-OES) or mass spectrometry with inductively coupled plasma (ICP-MS)

Determinação de Cd, Cu, Ni, Pb e Zn em águas marinhas oriundas da Bacia Potiguar utilizando a técnica de difusão em filmes finos por gradiente de concentração (DGT)

The DGT technique has been used to determine and better understand the dynamics and bioavailability of metals in the sea near to marine outfalls. In this work, the DGT was assessed for the determination of Cd, Pb, Cu, Zn and Ni in marine water samples from Potiguar Basin in its conventional aspect (binding agent, Chelex-100 and diffusive agent: Diffusive polyacrylamide gel (D) and restrictive (R)) and determination of Pb and Cd through its alternative aspect (binding agent: Saccharomyces cerevisiae immobilized in agarose gels and diffusive agent: 3MM Chromatography Paper). The deployment curves for long periods of immersion in the sample, showed a good linear correlation for the conventional aspect to Zn (D: R²=0.9586, R: R²=0.9444), Ni (D: R²=0.9789, R: R²=0.9286) and Cu (D: R²=0.764, R: R²=0.8143), and alternative to Pb (R²=0.9228) and Cd (R²=0.9673). The results of the organic and inorganic composition analysis in conventional aspect, showed that for every element there is no significant fraction of organic compounds in the sample. In addition, considering the alternative aspect, the comparison of obtained and expected masses suggests that some of the Pb is not labile and that the main retention mechanism of Pb for S. Cerevisiae occurs through ion exchange

Desenvolvimento e validação do método de difusão em ágar para quantificação de fluconazol cápsulas e aplicação em estudos de estabilidade

O fluconazol é um antifúngico de amplo espectro indicado para o tratamento de infecções fúngicas sistêmicas e superficiais. A determinação da potência dos antimicrobianos é importante no controle e na garantia da qualidade das preparações farmacêuticas e faz-se necessário o desenvolvimento de procedimentos práticos e econômicos que possam ser validados e aplicados no doseamento desses fármacos. Dentre os ensaios microbiológicos, os mais comumente empregados são o de difusão em ágar e o turbidimétrico. O objetivo deste trabalho foi desenvolver e validar métodos microbiológicos para determinação da potência do fluconazol cápsulas. O método de difusão em ágar foi desenvolvido empregando ágar Sabouraud e Candida albicans ATCC 64548 como micro-organismo teste. Foi utilizado o delineamento 3 x 3, segundo preconiza a Farmacopeia Brasileira (2010). A validação do método demonstrou linearidade entre o diâmetro dos halos de inibição e o logaritmo da concentração numa faixa de 25,0 a 100,0 µg/mL. Os resultados foram precisos, com desvio padrão relativo igual a 6,15%, e exatos, com intervalo de tolerância de 97,30%, dentro dos limites permitidos. O método foi aplicado ainda em estudos de estabilidade, nas condições de estresse calor úmido, em câmara climática a 40 ºC e 75% de umidade relativa por 90 dias; calor seco, em estufa a 60 ºC por 66 dias e fotodegradação, em câmara espelhada com luz UVC por 66 e 180 dias. Os valores de teor médio calculados foram de 30,27% para calor úmido; 27,72% para calor seco; 33,29% para fotodegradação durante 66 dias e 25,00% para fotodegradação durante 180 dias

Avaliação da membrana de troca aniônica DE 81 como ligante ba técnica de difusão em filmes finos por gradientes de concentração (DGT) para a determinação de Cromo VI

It is known that there is a wide variety of bioavailable trace metals in aquatic systems, and its determination is fundamental to predict impacts to organisms in these environments. However, the determination of the total concentration of chemicals in aquatic systems, despite its importance, does not provide necessary information for decision making or even may lead to misinterpretation of the procedures and potential risks to the system in question. This study aimed to use the technique of diffusion in thin films by concentration gradients (DGT) to evaluate the anion exchange membrane Whatman DE 81 as binder alternative in determining Cr (VI). Experiments were carried out to determine the diffusion coefficients for the material used diffusion (agarose gel). The behaviors of the binders were analyzed before the main variables of the systems, immersion time, pH and ionic strength. Then was made the assessment of potential interferences, to finally proceed with testing using actual samples in the laboratory and in situ

Avaliação da membrana P81 como agente ligante da técnica de difusão em filmes finos por gradiente de concentração (DGT) para determinação de mercúrio em sistemas aquáticos

Worldwide environmental degradation is an undesirable byproduct resulting from the increasing demand for natural resources. Water sources are suffering intense contamination since they usually receive a huge amount of domestic and industrial effluents - which are mostly wasted without proper treatment - inserting a large number of pollutants in the environment, heavy metals included. Mercury holds great toxicological importance because, under some physicochemical conditions in a water environment, Hg (II) ion turns into methylated compounds stemming from this element, such as methylmercury CH3Hg, which is highly toxic for the aquatic community in which bioaccumulation occurs. Nowadays passive sampling techniques are being developed to enable the analytical procedures which are applied in environmental monitoring. Diffusive gradients in thin-films technique (DGT) has been proven an interesting tool for the determination of labile metal species due to its in situ application. The DGT technique consists of a piston-like device on which the following series of agents is disposed: a binding agent (conventionally Chelex 100 resin), a diffusive agent, usually a polyacrylamide gel, and a membrane filter. Nevertheless, the agents conventinally used for this technique don't usually show satisfactory results in mercury sampling. The main goal of this study was to evaluate the phosphate-treated cellulose membrane (Whatman P 81), an alternative material, as binding agent in the DGT to determine labile mercury fractions in aquatic systems. In this context, we conducted a study of the behavior of this material in relation with system variables, pH and ionic strength. Afterwards we performed immersions of the DGT devices in real and enriched samples and in situ aiming the determination of mercury

Impacto da difusão de tecnologia na melhoria da qualidade do leite

Pós-graduação em Zootecnia - FCAV

Difusão de objetos de aprendizagem multiplataforma por transmissão de televisão digital: um estudo de viabilidade técnica e pedagógica

Pós-graduação em Televisão Digital: Informação e Conhecimento - FAAC

As contribuições de Júlio Pires Porto-Carrero à difusão da psicanálise de crianças no Brasil nas décadas de 1920 e 1930

The ideas related to the psychoanalysis of children began to be disseminated in Brazil in the 1920’s, by professionals connected to medicine and education. Therefore, the present article aims showing the contributions of Julius Pires PortoCarrero in the introduction of ideas referred to psychoanalysis of children in Brazil from 1920 to 1930, focusing on education. Through bibliographic research all of the author´s work that used psychoanalytic ideas to discuss themes related to education were identified. The conclusions indicate that, in agreement with new educational proposals emerged in the country in the 1920s, the author devoted himself to spread psychoanalytic concepts among educators, assuming that a better understanding of the child based on psychoanalysis could support its development and also the learning process. Besides conferring social legitimacy to psychoanalysis, this initiative has enabled the arising of a more comprehensive practice in child psychoanalysis.

Avaliação da Saccharomyces cerevisiae como agente ligante na técnica de difusão em filmes finos por gradiente de concentração (DGT) para a determinação de metilmercúrio

Sabendo-se do potencial de toxicidade do mercúrio, mais especificamente de sua forma orgânica, o metilmercúrio (MeHg), faz-se necessária a busca por métodos analíticos eficientes e precisos para a determinação e especiação do metal. A técnica de difusão por gradiente em filmes finos (DGT) já vem sendo utilizada para tal fim de maneira eficiente tendo apresentado resultados satisfatórios em diversos estudos. Porém, a utilização de ligantes alternativos aos convencionais, que tornem a aplicação da técnica menos custosa em termos laborais e financeiros, faz-se importante para um monitoramento constante e eficiente do metilmercúrio no ambiente. No presente trabalho buscou-se avaliar o potencial da levedura Saccharomyces cerevisiae imobilizada em agarose em combinação com a poliacrilamida como agente difusivo para determinação seletiva de MeHg. Os resultados demonstraram-se positivo, com um coeficiente de difusão médio de 7,03 ± 0,77 x 10-6 cm2 s-1. Os resultados demonstraram também baixa influencia do pH, força iônica e outros íons na retenção do analito pelos dispositivos. As recuperações de Hg2+ demonstraram-se insatisfatórios, evidenciando a seletividade dos dispositivos

Determinação in situ de metilmercúrio e mercúrio (II) em sistemas aquáticos nas proximidades de refinarias de petróleo, utilizando a técnica difusão em filmes finos por gradiente de concentração (DGT)

Pós-graduação em Geociências e Meio Ambiente - IGCE

Difusão de tecnologia CAD e CNC como ferramenta básica de criação e produção em pequena escala, acessível à comunidade

The high competitiveness and the search for newtechnologies that differentiate the product from the project,require the use of new digital tools. The computer aideddesign - Computed Aided Design (CAD), with electronicmodeling, simulation, structural analysis and production,performed in a virtual environment through the applicationof specific software, are available but their use is stilllimited. There are various software available in languagesand extensions to industrial production which, from 3Dmodeling, they can manage through Computer NumericalControl - Computed Numerical Control (CNC) machiningcenters, laminating, stamping, mold making and otherprocesses productive. This project aims to encouragecreativity and entrepreneurship in the community throughthe provision of technology computer aided design - CAD,with a view to implementation of machining technology.