193 research outputs found

    O Espírito Santo faça de nós uma oferenda permanente : estudo sobre a Oração Eucarística III

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    A ação anamnética é tipicamente divina, porque Deus não se esquece do seu povo. A origem da Eucaristia cristã está na Última Ceia, na qual Jesus, por meio do pão e do vinho, e de gestos e palavras, institui o memorial da sua Paixão, dizendo no fim da Ceia: «fazei isto em memória de mim». O memorial celebrado é bem evidenciado na Oração Eucarística III. Este memorial, mais do que ativar a dimensão psicológica do sujeito celebrante, requer a sua configuração com Cristo, pela ação do Espírito Santo, que faz de cada membro da assembleia celebrante uma oferenda permanente a Deus Pai. Celebrar a Eucaristia significa atualizar os benefícios da ação salvífica do Senhor. As dimensões da comensalidade e do sacrifício, presentes na Oração Eucarística III, têm a sua origem remota na liturgia judaica da ceia festiva e do sacrifício no Templo em Jerusalém, e, mais proximamente, na liturgia antioquena.The anamnetic action is a typical divine one, because God does not forget his people. The origin of the Christian Eucharist lies on the Last Supper, in which Jesus, through bread and wine, gestures and words, institutes the memorial of his Passion, saying at the end of the Supper: “do this in remembrance of me”. The celebrated memorial is shown throughout the Eucharistic Prayer III. This memorial, more than activating the psychological dimension of the person celebrating, requires his configuration with Christ, through the action of the Holy Spirit, who makes from each member of the celebrating assembly a permanent offering to God, our Father. Celebrating the Eucharist means updating the benefits of the Lord’s saving action. The dimensions of commensality and sacrifice, present in the Eucharistic Prayer III, have their remote origin in the Jewish liturgy of the festive supper and the sacrifice in the Temple in Jerusalem and, more closely, in the Antiochene liturgy

    Origem, prática educativa e evolução do movimento de educação de base (MEB) em Itacoatiara - AM

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    Este estudo visou analisar a relevância do Movimento de Educação de Base (MEB), no município de Itacoatiara-AM, no período de 1998 a 2003. Tendo em vista o caráter político-pedagógico das práticas educativas forjadas por este movimento durante a sua 3ª fase a nível nacional. O Movimento de Educação de Base foi criado em 1961 pela Conferência Nacional dos Bispos do Brasil (CNBB). O objetivo principal do MEB era desenvolver um programa de educação de base, por meio de escolas radiofônicas, principalmente nas zonas rurais das áreas subdesenvolvidas do Norte, Nordeste e Centro-Oeste do país, expandindo-se posteriormente para outras regiões do Brasil de acordo com o decreto 5.2267/61. Assim, pautou-se a análise em fontes primárias (documentos) que estão localizadas na Cúria Prelatícia da cidade. E também no levantamento bibliográfico, pois, é praticamente impossível desenvolver um estudo científico, sem a fundamentação em um ou mais pressupostos que direcionem a “reconstrução” do objeto. Apesar da diversidade de informações contida nos documentos, ainda são escassos os estudos que visam historiar o MEB da região Norte do país. Os dados da pesquisa apontam que, durante a atuação do MEB em Itacoatiara o rádio não era o principal meio de transmissão das aulas, os professores utilizavam cartilhas elaboradas pelo MEB de acordo com a realidade local

    Analysis of Chromobacterium sp. natural isolates from different Brazilian ecosystems

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    <p>Abstract</p> <p>Background</p> <p><it>Chromobacterium violaceum </it>is a free-living bacterium able to survive under diverse environmental conditions. In this study we evaluate the genetic and physiological diversity of <it>Chromobacterium </it>sp. isolates from three Brazilian ecosystems: Brazilian Savannah (Cerrado), Atlantic Rain Forest and Amazon Rain Forest. We have analyzed the diversity with molecular approaches (16S rRNA gene sequences and amplified ribosomal DNA restriction analysis) and phenotypic surveys of antibiotic resistance and biochemistry profiles.</p> <p>Results</p> <p>In general, the clusters based on physiological profiles included isolates from two or more geographical locations indicating that they are not restricted to a single ecosystem. The isolates from Brazilian Savannah presented greater physiologic diversity and their biochemical profile was the most variable of all groupings. The isolates recovered from Amazon and Atlantic Rain Forests presented the most similar biochemical characteristics to the <it>Chromobacterium violaceum </it>ATCC 12472 strain. Clusters based on biochemical profiles were congruent with clusters obtained by the 16S rRNA gene tree. According to the phylogenetic analyses, isolates from the Amazon Rain Forest and Savannah displayed a closer relationship to the <it>Chromobacterium violaceum </it>ATCC 12472. Furthermore, 16S rRNA gene tree revealed a good correlation between phylogenetic clustering and geographic origin.</p> <p>Conclusion</p> <p>The physiological analyses clearly demonstrate the high biochemical versatility found in the <it>C. violaceum </it>genome and molecular methods allowed to detect the intra and inter-population diversity of isolates from three Brazilian ecosystems.</p

    REGISTRO DE Frankliniella brevicaulis HOOD (THYSANOPTERA: THRIPIDAE) EM BANANA COMPRIDA (CV. D’ANGOLA) NO ESTADO DO ACRE

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    Thrips are among the insects harmful to banana cultivation in Brazil, usually depreciating the external aspect of the fruits by the formation of spots or eruptions on their skin, as a result of their food. This work makes the first report of Frankliniella brevicaulis Hood (Thysanoptera: Thripidae) in a commercial plantation of ‘banana comprida’ plantain (cv. D’Angola) in the state of Acre, Brazil. Due to the lack of information about the economic impacts and geographical distribution of this thrips species, research on this subject is strongly recommended in the State.Keywords: Amazon; Phytophagous insect; Terebrantia; Eruption thrips.Tripes estão entre os insetos prejudiciais ao cultivo da banana no Brasil, normalmente depreciando o aspecto externo dos frutos pela formação de manchas ou erupções em sua casca, em consequência da sua alimentação. Este trabalho faz o primeiro relato de Frankliniella brevicaulis Hood (Thysanoptera: Thripidae) em plantio comercial de banana comprida (cv. D’Angola) no estado do Acre. Devido à falta de informações acerca dos impactos econômicos e distribuição geográfica dessa espécie de tripes, pesquisas nesse com esse enfoque são fortemente recomendas no Estado.Palavras-chave: Amazônia, Inseto fitófago, Terebrantia, Tripes-da-erupção

    Análise físico-química do óleo essencial de pupunha (Bactris gasipaes Kunth - Arecaceae), do município de Cruzeiro do Sul, Acre, Brasil

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    In addition to standing out in the Amazonian landscape, Arecaceae species, popularly known as palm trees, add economic and social values. The purpose of this paper was to analyze the physical and chemical characteristics of the oils extracted from five varieties of peach palm fruits (Bactris gasipaes). In order to achieve such purpose, fruit samples from five plantation matrices were collected in the municipality of Cruzeiro do Sul, in the upper Juruá region (74º0 'W at 72ºW and 7º05' S at 9º40 'S). We determined the oil content, the density, the refractive index, the spectrophotometry, and the thin layer chromatography. The data were subjected to analyses of variance (ANOVA) and regression. The difference between the means of the treatment was tested with the Tukey test at 5% significance, performed with the aid of RStudio Core Team software, version 3.6.3 and with ExpDes.pt package, car, stats and fBasics. Our findings showed essential oil contents of 24.29%, 24.28% for matrices 2 and 4, and below 8.1% for matrices 1.3 and 5. The acidity index ranged from 1.26 to 5.22 mg NaOH / g oil, whereas the refractive index ranged from 1.4510 to 1.4690. The analysis of layer chromatography resulted in seven RFs, with the ranges 0.325; 0.45; 0.5; 0.6; 0.7; 0.8 and 1 for all oils analyzed.  Spectroscopic curves showed significant differences in the ranges 320 to 540 nm, indicating different functional groups and/or substances in the extractives. According to the results, the essential oil from the samples of peach palm fruits (Bactris gasipaes) showed distinct and significant values for the five physical and chemical parameters evaluated, which calls attention to a possible occurrence of genetic variability in the material studied. The findings suggest that the investigation should be expanded with a larger sample size, and that an alternative investment in genetic improvement should be confirmed.As espécies de Arecaceae, conhecidas popularmente por palmeiras, além de se destacarem na paisagem amazônica, agregam valores econômico e social. O presente trabalho teve como objetivo analisar as características físico-químicas dos óleos extraídos de cinco variedades de frutos de pupunha (Bactris gasipaes Kunth). Para tanto, amostras de frutos de cinco matrizes provenientes de plantios foram coletadas no município de Cruzeiro do Sul, região do alto Juruá (74º0’ W a 72ºW e 7º05’ S a 9º40’ S) e foram determinados o teor de óleo, densidade, índice de refração, espectrofotometria e cromatografia em camada delgada. Os dados foram submetidos às análises de variância (ANOVA) e de regressão, cuja diferença entre as médias dos tratamentos foi testada por meio do teste de Tukey a 5% de significância, realizados com o auxílio do software RStudio Core Team, versão 3.6.3 e com pacote ExpDes.pt, car, stats e fBasics. Os resultados apontaram teores de óleo essencial de 24,29%, 24,28% para as matrizes 2 e 4 e abaixo de 8,1% para as matrizes 1,3 e 5. O índice de acidez variou de 1,26 a 5,22 mg NaOH/g de óleo, enquanto o índice de refração variou de 1,4510 a 1,4690. A análise de cromatografia em camada resultou em sete Rfs, sendo eles nas faixas 0,325; 0,45; 0,5; 0,6; 0,7; 0,8 e 1 para todos os óleos analisados, com curvas espectroscópicas apresentando diferenças significativas nas faixas de 320 a 540 nm, indicando diferentes grupos funcionais e/ou substâncias nos extrativos vegetais. De acordo com os resultados, o óleo essencial das amostras de frutos de pupunha (Bactris gasipaes) apresentou valores distintos e significativos para os cinco parâmetros físico-químicos avaliados, o que desperta a atenção para uma possível ocorrência de variabilidade genética no material estudado, mas sugerindo, ao mesmo tempo, que se amplie a investigação, com um maior tamanho amostral e se confirme uma alternativa de investimento em melhoramento genético

    Retorno de embalagens PET: cenários a partir da responsabilização de fabricantes e distribuidores

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    The disposal of PET packaging in landfills, combined with reduced rates of reuse and recycling of the material result in governamental movements in search of more suitable solutions to the environment. The responsibility of manufacturers for packaging of their products is a trend that consolidates every day. In the beverage industry, the reverse logistics of packaging can become reality in the coming years. Laws are being dealt to blame the manufacturers for collecting the packaging, as occurs in the crop protection industry. Concerning the presented context, this study aims to understand what would be the impact of a government decision of this nature, as well as factors, constraints and bottlenecks to effective implementation of policies of reverse logistics of PET. Thus, the working method used initiated by a literature search, which served as the basis for assessments of future context, following the technique of scenario planning. Among the main findings, it was found that many companies will have immense trouble following this market from this new law.O descarte de embalagens PET em aterros sanitários, aliado a reduzidas taxas de reuso e reciclagem do material resultam em movimentos governamentais na busca por soluções mais adequadas ao meio ambiente.  A responsabilização dos fabricantes pelas embalagens de seus produtos é uma tendência que se consolida a cada dia. Na indústria de bebidas, a logística reversa das embalagens pode se tornar realidade nos próximos anos. Projetos de lei tramitam para responsabilizar os fabricantes pelo recolhimento das embalagens, assim como ocorre na indústria de defensivos agrícolas. Frente ao contexto apresentado, este estudo tem por objetivo entender quais seriam os impactos de uma decisão governamental desta natureza, assim como os fatores, restrições e gargalos para a aplicação efetiva das políticas de logística reversa das embalagens PET.  Para tanto, o método de trabalho utilizado iniciou por uma pesquisa bibliográfica, a qual serviu de base para avaliações do contexto futuro, seguindo a técnica de planejamento por cenários. Dentre as principais conclusões, foi possível constatar que muitas empresas terão imensa dificuldade para seguir nesse mercado a partir dessa nova lei

    Linear correlations between feed intake and ingestive behavior of feedlot lambs

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    The objective of this study was to evaluate linear correlations between feed intake and ingestive behavior of feedlot lambs. Were used ten castrated male Santa Inês sheep with a body weight of 20 ± 4.38 kg, at four months of age. The experiment lasted 50 days, with five 10-d periods, in which an evaluation of feed intake and ingestive behavior was undertaken per period, totaling 50 replicates. The diet was composed of concentrate ingredients only. The analyses were performed by Pearson’s linear correlations and the t test, and means were considered significant when P≤0.05. Intake showed positive correlations (P≤0.05) with the times spent feeding and ruminating and total chewing time, and a negative correlation (P≤0.05) with other activities. Positive correlations were found between the number of feeding periods, number of other activities and the time per rumination period with intake (P≤0.05). A negative correlation was found between the feed efficiency of dry matter and the intake, as well as the other nutrients (P≤0.05). The behavioral characteristics related to feed intake appear to be correlated, which allows for inferences through the study of these variables. The activities related to nutrient intake, with respect to time and efficiency, can be expressed directly through the animal behavior.The objective of this study was to evaluate linear correlations between feed intake and ingestive behavior of feedlot lambs. Were used ten castrated male Santa Inês sheep with a body weight of 20 ± 4.38 kg, at four months of age. The experiment lasted 50 days, with five 10-d periods, in which an evaluation of feed intake and ingestive behavior was undertaken per period, totaling 50 replicates. The diet was composed of concentrate ingredients only. The analyses were performed by Pearson’s linear correlations and the t test, and means were considered significant when P≤0.05. Intake showed positive correlations (P≤0.05) with the times spent feeding and ruminating and total chewing time, and a negative correlation (P≤0.05) with other activities. Positive correlations were found between the number of feeding periods, number of other activities and the time per rumination period with intake (P≤0.05). A negative correlation was found between the feed efficiency of dry matter and the intake, as well as the other nutrients (P≤0.05). The behavioral characteristics related to feed intake appear to be correlated, which allows for inferences through the study of these variables. The activities related to nutrient intake, with respect to time and efficiency, can be expressed directly through the animal behavior

    Biometric and reproductive characteristics of the King Tiger Plecos Hypancistrus sp. “L-333” (Siluriformes: Loricariidae) endemic to the lower Xingu River (Pará, Brasil)

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    This research analyzed the biometrics and reproductive characteristics of a group of Hypancistrus sp. L-333 (King Tiger Plecos) in order to gather biological information and aid the rearing of the species in captivity, thus supporting its natural conservation. This species has a natural distribution that is restricted to the lower Xingu River, and is currently threatened by the hydroelectric projects in the region. The acquired specimens were measured, weighed and classified according to sex based on morphometric characteristics (evidence of secondary sexual characteristics) that were later confirmed by dissection. A total of 32 individuals, 16 males and 16 females were identified. Although the length-weight ratio did not present significant differences, the results revealed that the species has secondary sexual dimorphism. The odontodes were more developed in the mid-lateral region of the body, post-dorsal region, caudal peduncle and in the first ray (ossified) of the pectoral fin in males. Histological analyses of the gonads confirmed that all of the fish were adult individuals. The diameter of the oocytes ranged from 0.14 to 2.0 mm, presented three distinct modes, and were synchronous in more than two groups, which evidences batch spawning. Fecundity was low, between 35 and 54 oocytes in the largest batch. This information is novel and important for the identification of reproductive groups, and is aimed at breeding in captivity so that these resources can be exploited in a sustainable way, without harming the already threatened natural stocks

    School Evasion in the Brazilian trends: analyzing the vectors that influence students’ decision to interrupt their formative process

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    Research data demonstrate that the analyzes built around School Evasion considers, primarily, the quantitative metrics of studentsrsquo; entry and exit and also the monetary losses, especially because it would be incoherent not to take as reference the goals and objectives outlined for education school system. However, analyzing the vectors that influence studentsrsquo; decision to interrupt their formative process, according to purely numerical criteria, would imply in ignoring the function of educational institutions and the real causes/reasons stemming from the social and relational demand of students' passage on educational institutions. For this reason, problematizing some of the recurring issues and incidents generated by certain investigations seems instigating and challenging. If in on the one hand, the attitude of understanding the conceptualization, the investigative tendencies and the characteristics of the studies give rise to certain criticisms that put in check the complexity of the object in question, on the other, it can stimulate the construction of other tendencies, new pathways, other possible ways of overcoming the gaps identified in the studies about School Evasion in Brazil
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