44 research outputs found

    Silence in the Coffee Plantation: The Painting-poetics of Candido Portinari

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    This article wants to analyze how Candido Portinari in his paintings with rural theme, engages a poetry of silence. To understand the functioning of this poetic language, we will adopt the Groupe μ analysis method (both the General Rhetoric andthe Treatise on theVisual Sign). Whereas the language is manifold as the forms of representation, and it present in all media, whatever the lack of speech -silence -would find its richest form in both directions through the metaphors and metonymy engaged in metasememes of the paintings studied

    Man Ray and Photography as a Poetic Communication Technology

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    This article wants to analyze how Man Rayin his photographs, engages a poetry of silenceusing this medium as a poetic communication technology. To understand the functioning of this poetic language, we will adopt the Groupe μ analysis method (both the General Rhetoricand the Treatise on the Visual Sign). Whereas the language is manifold as the forms of representation, and it present in all media, whatever the lack of speech -silence -would find its richest form in both directions through the metaphors and metonymy engaged in metasememes of the photos studied

    Efeito do beneficiamento e aplicação de tratamento térmico na composição química e digestibilidade proteica do arroz

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    O arroz tem alto valor nutricional em função de sua composição química, que está diretamente relacionada com o tipo de arroz, sendo os componentes divididos nas diferentes frações do cereal. Quando é submetido a beneficiamento, alguns nutrientes podem ser separados, parcial ou inteiramente, alterando assim suas características químicas e nutricionais. O objetivo deste trabalho foi verificar a influência do beneficiamento industrial e dos tratamentos hidrotérmicos (cozimento) na composição química e digestibilidade in vitro de amostras de arroz. Para tanto, nove amostras de arroz branco, parboilizado e integral comercializados na cidade de Rio Grande – RS, foram submetidas à análise de umidade, cinzas, proteína, lipídios e digestibilidade in vitro antes e após cocção (simulação de cozimento doméstico). Os resultados indicam que quanto ao beneficiamento, as amostras de arroz integral apresentam maior teor de cinzas e lipídeos, enquanto que os demais componentes não diferiram estatisticamente entre os tipos de amostra. Após aplicação do tratamento térmico, a digestibilidade proteica aumentou consideravelmente (em torno de 50%) indicando que o cozimento possibilitou a entrada de água entre as cadeias facilitando assim a ação das enzimas proteolíticas, aumentado consequentemente a digestilidade proteica das amostras

    Taxonomic Review of South American Butter Frogs: Phylogeny, Geographic Patterns, and Species Delimitation in the Leptodactylus latrans Species Group (Anura: Leptodactylidae)

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    The Leptodactylus latrans species group currently comprises eight medium- to large-sized frog species with a convoluted taxonomic history, particularly related to the specific limits of the L. latrans complex, and the species pair Leptodactylus chaquensis–Leptodactylus macrosternum. Their homogeneous external morphology and continental geographic distribution in South America have posed severe limitations to a comprehensive review, such that taxonomic consensus and species limits remain uncertain. This is further worsened by the presence of chromatic polymorphism among coexisting species that can hardly be distinguished by external morphology. Based on a large-scale geographic sampling including multilocus DNA analyses, and acoustic and morphological data, we provide a comprehensive evaluation of the taxonomic status and species limits of the L. latrans group, focusing on the resolution of the L. latranscomplex and the species pair L. chaquensis–L. macrosternum. We gathered 728 mitochondrial sequences from 429 localities, encompassing the entire geographic distribution of the group. Both generalized mixed Yule coalescent and automatic barcode gap discovery species delimitation methods recovered four major mitochondrial evolutionary lineages within the L. latrans complex, also supported by distribution patterns, multilocus molecular, morphological and/or bioacoustic data. One lineage is linked to nominal L. latrans,one revalidated as Leptodactylus luctator, and the other two are formally named and described. Another lineage encompasses all specimens previously assigned to the species pair L. chaquensis–L. macrosternum, clustered as a single evolutionary entity and is now regarded as L. macrosternum. We provide a revised diagnosis for these species based on acoustic data, morphological/chromatic variation, and phylogenetic relationships of all species currently included in the L. latrans group. Our findings reinforce the view that Neotropical diversity is highly underestimated and stress that appropriate geographic sampling in an integrative framework is crucial for the establishment of specific limits among broadly distributed and morphologically cryptic Neotropical frogs

    Cadastramento de doadores voluntários de Medula Óssea no REDOME

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    Anais do 35º Seminário de Extensão Universitária da Região Sul - Área temática: SaúdeO transplante de medula óssea consiste na substituição de uma medula óssea doente ou deficitária por células normais, com o objetivo de reconstituição de uma nova medula. Um fator que dificulta a realização do procedimento é a falta de doador compatível. Assim, quanto maior o número de novos doadores voluntários cadastrados no REDOME (Registro Brasileiro de Doadores Voluntários de Medula Óssea), maiores são as possibilidades de o paciente encontrar um doador compatível. Nosso projeto de extensão tem como objetivo a conscientização da população sobre o cadastramento de doadores voluntários de medula óssea nas regiões de Maringá, Cianorte e Paranavaí, por meio de campanhas de captação de doadores, palestras de conscientização e divulgação sobre a doação e o transplante de medula óssea. O projeto vem colaborando no crescimento do REDOME com doadores mais conscientes sobre a responsabilidade do cadastro no banco. Assim, nossa equipe deve continuar realizando o trabalho de conscientização da população, pois quanto maior o número de doadores, maior é a possibilidade de se encontrar um doador compatíve

    Photography-based taxonomy is inadequate, unnecessary, and potentially harmful for biological sciences

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    The question whether taxonomic descriptions naming new animal species without type specimen(s) deposited in collections should be accepted for publication by scientific journals and allowed by the Code has already been discussed in Zootaxa (Dubois & Nemésio 2007; Donegan 2008, 2009; Nemésio 2009a–b; Dubois 2009; Gentile & Snell 2009; Minelli 2009; Cianferoni & Bartolozzi 2016; Amorim et al. 2016). This question was again raised in a letter supported by 35 signatories published in the journal Nature (Pape et al. 2016) on 15 September 2016. On 25 September 2016, the following rebuttal (strictly limited to 300 words as per the editorial rules of Nature) was submitted to Nature, which on 18 October 2016 refused to publish it. As we think this problem is a very important one for zoological taxonomy, this text is published here exactly as submitted to Nature, followed by the list of the 493 taxonomists and collection-based researchers who signed it in the short time span from 20 September to 6 October 2016
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