995 resultados para Telefone celular - diálogo
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The use of pesticides in Brazil has intensified over the years. And since 2009 it was ranked as the largest market for pesticides worldwide. The consequential diffuse contamination of the environment is therefore due to the increasing number of chemicals of different classes, origins and modes of action. Little is known about the action of pesticides on human health in situations of co-exposure. Possible toxic effects are not restricted to agricultural and industrial workers, but also the general population that may be exposed continuously to its residues in food and water. Although these pesticides are mostly present in the environment at low doses, it must be considered that possible cumulative or synergistic effects may occur when there are concurrent or sustained exposure for two or more of these agents, which can lead to late manifestation of subclinical damages, sometimes irreversible. Thus, the specific objective of this study was to assess the effect of carcinogenesis promotion of a mixture of pesticides at low doses and analyze the phenomena of cell proliferation and apoptosis in rat liver. A total of 50 male Lewis rats was separated into 5 groups for 8 weeks in a medium term hepatocarcinogenesis model. The three different classes of pesticides (dieldrin, dicofol, endosulfan, dichlorvos and permethrin), whose residues were detected by ANVISA during the period from 2001 to 2005 in tomatoes cultures, were added to the feed of rats initiated to hepatocarcinogenesis with diethylnitrosamine (DEN- 200mg/kg ip). We used two different mixtures, one with no toxic effects at doses (MEX1) referring to the NOEL (no-observed-effect level) and another at doses LOEL / LEL / LOAEL (Lowest-observed-effect level / Lowest-effect level / Lowest -observed-adverse-effect level), to the installation of adverse effects (MEX2), derived from chronic studies. All animals ...(Complete abstract click electronic access below)
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La lucha por la tierra en el Brasil se confunde con la própria historia del país, erigida sobre una cuestión agraria turbulenta en la cual ha predominado la hegemonía de los grandes proprietarios de tierra, tanto en la forma de latifundistas, cuanto, más recientemente, de los empresarios del agribusiness, caracterizando una versión más moderna de la dominación de la lógica del capital en detrimento de las demás formas de organización de la vida. A partir de la segunda mitad del siglo XX, ocurre un aguzamiento de los conflictos por la tierra con la emergencia de los principales movimientos sociales en Brasil, como el MST. Esos movimientos surgen en un contexto de transformación de la formación socioespacial brasileña, marcada por la creciente urbanización del país, lo que repercute em las sus formas de organización, pasando a comparecer una preocupación con la población urbana en las discusiones y acciones en pro de la Reforma Agraria. Yuxtaponiendo-se a eso proceso, también ha emergido fortemiente en las últimas décadas la problemática de la hambre en el mundo, tanto a través de los dados alarmantes de los organismos supranacionales (FAO), como del debate impulsado por los movimientos sociales acerca de la Soberanía Alimentaria (Via Campesina). Todos esos elementos merecen atención em esto trabajo, que busca aprehender cómo se efectiva la participación de barrios de la periferia pobre de la ciudad de Presidente Prudente/SP en el proceso de lucha por la tierra en el Pontal del Paranapanema, haciendo eso por lo medio de una lectura geográfica de esa realidad que prime por la superación analítica de la disociación entre ciudad y campo, como se fueran espacios inertes entre sí. Además, es nuestro objetivo destacar las motivaciones que llevan los sujetos protagonistas de eso proceso a dejaren la ciudad y adhieriren a la lucha por la tierra, permitiendo identificar elementos que extrapolan la esfera económico-material
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Articular cartilage is the structure that coats the bone ends in regions where two bones are articulated, allowing movement. It has inefficient intrinsic and extrinsic mechanisms of repair, usually resulting in fibrocartilage formation after injury. Such repair have lower strength, stiffness and usability features when compared to hyaline cartilage. The mesenchymal stem cells have the potential to regenerate tissue without the production of scar, and because of this feature it is well studied. But to have its maximum chondrogenic potential, it is necessary to use scaffolds and growth factors. Biomaterials play the role of scaffold for the cells allowing them to become attached, grow and produce extracellular matrix, leading to formation of repair with hyaline cartilage. In this sense, the purpose of this study is to provide information on the various studies using cell therapy and / or biomaterials to produce hyaline cartilage
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Nos últimos anos, as pesquisas com células-tronco têm despertado um grande interesse nos meios de comunicação, levando a população a encarar esse novo conhecimento científico como sendo um método promissor para a cura de inúmeras doenças até agora, tidas como incuráveis. Deste modo, mostra-se fundamental que o ensino de Biologia se volte para o desenvolvimento de competências que permitam ao aluno entender, discutir, questionar, analisar, adquirir um posicionamento crítico diante das informações postas e fazendo uso dos conhecimentos adquiridos, servir como multiplicadores do conhecimento científico. Este trabalho tem como objetivo central a produção de um material didático contendo informações a respeito das células-tronco, quanto aos tipos, características, classificações, métodos de coleta e as terapias desenvolvidas no Brasil. Informações estas que servem como auxílio para professores de Ciências e Biologia, na compreensão e atualização perante as inovações científicas relacionadas às células-tronco. O capítulo 6 vem como uma sugestão de atividades possíveis a serem desenvolvidas a partir desse tema. Apresenta ainda um CD-ROM contendo uma síntese do assunto proposto a servir como suporte no preparo de aulas didáticas relacionadas ao tema
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Pós-graduação em Artes - IA
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Pós-graduação em Medicina Veterinária - FCAV
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O presente estudo discute o diálogo intertextual existente entre o romance brasileiro O Grande Mentecapto, de Fernando Sabino, e outras obras de escritores mineiros, explicitando as transformações que as obras citadas ou referidas provocam no discurso do romance em questão. Com um olhar mais atento sobre o plano discursivo da obra, podemos perceber a presença de um jogo lúdico e burlesco, típico do discurso carnavalizado, com as fronteiras entre o real e o fictício, onde o diálogo intertextual se insere.
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This work consists of a semiotic analysis of the animation motion picture The Lion King (1994), by the Walt Disney Animation Studios, describing its intertextual relation with Hamlet, by Shakespeare, considering Disney’s individuality, its style. In order to study style in texts, we use discursive semiotics theory, highlighting Discini’s work (2013) and the concept of discursive settings. Hence, a deep discussion about The Lion King’s style, compared to the Shakespeare’s play, is established. The movie, once a syncretic text, requires advanced studies on Expression Plane, its plastic, musical and verbal/phonic aspects. We find these studies in the work of José Luiz Fiorin (2009), Lúcia Teixeira (2009), Ana Claúdia de Oliveira (2009), Jean-Marie Floch (2009) and Antônio Vicente Pietroforte (2008). We note how a syncretic text makes the discursive settings more complex by assembling plastic and sonorous materials in semissimbolic relation. Once defined The Lion King’s style, we analyze the way it justifies the intense popularity of this kind of animation features. Finally, it is important to understand how Disney uses in its style not only discursive settings, but also passional settings, revealing its own way to stir emotions on the spectator
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
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This article shows some reflections on the dilemmas of contemporary education, especially those that go without a horizon of truth and value, that are foundation and justification for the setting up of the modern school. Such reflections are grounded in the texts of Friedrich Nietzsche to discuss the dissolution of metaphysics, regarded here as an element of destabilization of the symbolic repertoire of the school. It is suggested at the end, the recovery of the interpretive act as an alternative to the emptying of the concepts of truth and value and recognition of dialogue as a privileged place to get closer to temporary and circumstantial truth.
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The purpose of this work and to provide education professionals regarding the way a reflection of how the body has been seen and treated at school. In view of embodiment and sexuality education body and movement performed by him has received a new treatment in our time, overcoming the dichotomy inherited from the mechanistic paradigm and structured by Newton and Descartes and predominant in recent centuries. We know that these changes are consequences of the emergence of AIDS and the advancement of the incidence of unwanted pregnancies among young people of school age. Therefore, this discussion reinforces the need for training of teachers in promoting discussions about sexuality and corporeality with broader focus, dialogues, be traced paths to address the biopsychosocial aspects from a sociohistorical context of gender equity, respect for sexual diversity, the reduction of prejudice and violence against the so-called “minorities” sex.