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Showing papers by "Federal University of Roraima published in 2012"


Journal ArticleDOI
13 Aug 2012-PLOS ONE
TL;DR: This study demonstrates the promise of using new D-xylose-fermenting yeast strains from the Brazilian Amazonian Forest for ethanol or xylitol production from sugarcane bagasse hemicellulosic hydrolysates.
Abstract: Background This study is the first to investigate the Brazilian Amazonian Forest to identify new D-xylose-fermenting yeasts that might potentially be used in the production of ethanol from sugarcane bagasse hemicellulosic hydrolysates.

111 citations



Journal ArticleDOI
TL;DR: In this article, the authors evaluated the effect of levels of finely crushed basalt rock in soil chemical conditioning using dystrophic Yellow Latosol from pre-weathered Boa Vista Formation.
Abstract: Basaltic rocks have chemical and mineralogical composition that allows its agricultural application due to its capability of improving soil fertility. The aim in this work was to evaluate the effect of levels of finely crushed basalt rock in soil chemical conditioning. A dystrophic Yellow Latosol from pre-weathered Boa Vista Formation was used. The rock of the Apoteri formation was collected in the mine of Nova Olinda near Boa Vista. The treatments consisted of the incorporation and incubation of eight rock powder levels (0; 0.85; 1.70; 3.35; 5.03; 10.05; 20.40 and 40.80 g kg-1). The experimental design was entirely randomly with eight treatments and three replicates. After the incorporation of the rushed rock powder for a period 180 days of soil incubation, the soil was analyzed and determined the values of Ca2+, Mg2+, pH in H2O, pH in KCl, Al3+, H+ Al, Zn, Fe, Cu and Mn. The level of 20.40 g kg-1 of basalt provided the maxim reduction of the active acidity, varying from 4.8 to 5.5. Concentrations of exchangeable Ca2+ and Mg2+ increased, but their increments in the soil solution was small. Basalt levels presented high efficiency for neutralization of the potential acidity. Amendments with crushed rock increased extractable amounts of Zn, Fe and Cu in soil, after incubation.

34 citations



Journal ArticleDOI
TL;DR: 'Eva', 'Baronesa' and 'Princesa' showed higher productive performance and fruit quality attributes most suitable for the fresh market, i.e., lower acidity and good firmness, and the highest ratio.
Abstract: These research aimed evaluate the production and quality attributes of apple tree cultivars in subtropical conditions at eastern of Sao Paulo state. For such, an assay of competition among cultivars was implanted in the Jundiai city, SP, with seven cultivars ('Eva', 'Condessa', 'Princesa', 'Rainha', 'Imperial Gala', 'Daiane', and 'Baronesa'). The experiment was implanted in 2006, the spacing was 3,0mx1,5m, and the plants were grafting in Marubakaido roostock and M9 inter-grafting. The evaluations had been carried through in two production cycle (2008/09 and 2009/10), the phenological stage, productive aspects and fruit quality attributes were evaluated. 'Eva', 'Baronesa' and 'Princesa' showed higher productive performance. The 'Baronesa' apple presented fruit quality attributes most suitable for the fresh market, i.e., lower acidity and good firmness, and the highest ratio.

18 citations


Journal ArticleDOI
TL;DR: In this paper, the same authors found that fluorine substitutes for O to form PO3F tetrahedra, as in bobdownsite, which accounts well for the compatibility between the crystallographic characteristics and the chemical composition.
Abstract: The Madeira deposit (Sn, Nb, Ta) at Pitinga, Amazonia, in Brazil, is associated with the albite-enriched facies of the A-type Madeira granite (~1,820 Ma). Fluorine (cryolite), Y, REE, Li, Zr, and Th are potential by-products of the disseminated ore. We studied the xenotime from the core albite-enriched (CAG), transitional albite-enriched granite (TAG) and pegmatitic albite-enriched granite (PAG). In all these rocks, xenotime is magmatic, has high HREE contents (0.37 to 0.54 atoms per formula unit; LREE are not detected), and low U, Th and Ca content. The CAG xenotime is the richest in REE, followed by that in the PAG and TAG units. Fluorine was detected in all xenotime crystals from CAG (up to 5.10%) and from PAG (up to 1.40%) and in most crystals from TAG (up to 0.68%). Where the xenotime is richer in F, the Na and Si increase, the P, Ca, and the effectiveness of a thorite-type substitution decrease. Fluorine controls the ratio REE/Y; the richer the xenotime in F, the richer it is in REE, in particular Er and Yb. The cell parameters a and c are significantly shortened in F-rich xenotime. There is no evidence of OH in the structure. We contend that fluorine substitutes for O to form PO3F tetrahedra, as in bobdownsite. The formation of the PO3F tetrahedra in the xenotime accounts well for the compatibility between the crystallographic characteristics and the chemical composition.

17 citations


Journal ArticleDOI
TL;DR: Five strains of a novel yeast species isolated from rotting wood samples collected in an Amazonian forest site in the state of Roraima, northern Brazil showed that this species belongs to the Scheffersomyces clade and is related to Candida coipomoensis, Candida lignicola and Candida queiroziae.
Abstract: Five strains of a novel yeast species were isolated from rotting wood samples collected in an Amazonian forest site in the state of Roraima, northern Brazil. The sequences of the D1/D2 domains of the large subunit of the rRNA gene showed that this species belongs to the Scheffersomyces clade and is related to Candida coipomoensis, Candida lignicola and Candida queiroziae. The novel species Candida amazonensis sp. nov. is proposed to accommodate these isolates. The type strain of C. amazonensis sp. nov. is UFMG-HMD-26.3(T) ( = CBS 12363(T) = NRRL Y-48762(T)).

16 citations


Journal ArticleDOI
TL;DR: The complete genome sequence of a d Dengue virus serotype 4, genotype II strain isolated in 2010 from a patient with classical dengue fever in Boa Vista, Roraima, Brazil is reported.
Abstract: Dengue is the most important arboviral disease worldwide. We report the complete genome sequence of a dengue virus serotype 4, genotype II strain isolated in 2010 from a patient with classical dengue fever in Boa Vista, Roraima, Brazil.

14 citations


Journal ArticleDOI
TL;DR: In this paper, the critical behavior of a two-sublattice Ising model on an anisotropic square lattice in both uniform longitudinal (H ) and transverse ( Ω ) fields by using the effective field theory was studied.

13 citations


Journal ArticleDOI
TL;DR: This revision of Leptolobium Vogel includes an identification key, descriptions, illustrations, and distribution maps for the taxa, and the lectotype of Sweetia glazioviana Harms is designated in this paper.
Abstract: Este trabalho apresenta uma revisao taxonomica de Leptolobium Vogel, incluindo chave de identificacao, descricoes, ilustracoes e mapas de distribuicao dos taxons. Leptolobium, com 12 especies aceitas, inclui arvores ou arbustos com flores de corola branca, actinomorfa a levemente zigomorfa, 10 estames livres, ovario estipitado multiovulado, legumes indeiscentes, samaroides ou nucoides, sementes compressas e eixo hipocotilo-radicula bulboso. Leptolobium e um genero exclusivamente neotropical, ocorrendo desde o sul do Mexico ate o norte da Argentina. Onze especies ocorrem no Brasil, sendo sete especies endemicas. O lectotipo de Sweetia glazioviana Harms e designado neste trabalho. Em adicao, sao apresentadas informacoes sobre usos, nomes populares, distribuicao geografica e habitats de cada especie.

11 citations


Journal ArticleDOI
TL;DR: The results show that morphological diversity found among seedlings of the studied species can be used to identify them at the specific level, and the morphological variation found in Rhynchosia is discussed.
Abstract: Este trabalho tem como objetivos descrever, ilustrar e comparar a morfologia de plântulas das quatro especies de Rhynchosia (Leguminosae, Papilionoideae) ocorrentes no estado de Roraima, Brasil. Todas as especies estudadas, R. phaseoloides (SW.) DC., R. melanocarpa Grear, R. minima (L.) DC., e R. schomburgkii Benth. apresentam plântulas cripto-hipogeo-armazenadoras, eofilos do primeiro no 1-foliolados, opostos e com estipulas duplas e livres entre si. Os resultados mostram que a diversidade morfologica encontrada nas plântulas das especies estudadas permite identifica-las em nivel especifico. As especies podem ser distintas entre si pela morfologia da lâmina e comprimento das estipulas do primeiro no eofilar, bem como pelo numero de foliolos e forma e venacao das estipulas dos eofilos subsequentes. Alem disso, o trabalho discute a variacao morfologica nas plântulas de Rhynchosia e esclarece informacoes discordantes na literatura sobre plântulas de R. minima e R. phaseoloides.

Journal ArticleDOI
TL;DR: In this paper, a trabalho for avaliar o teor de acido cianidrico em tecidos de mandioca, em funcao da idade da planta and niveis de adubacao nitrogenada.
Abstract: O objetivo deste trabalho foi avaliar o teor de acido cianidrico em tecidos de mandioca, em funcao da idade da planta e niveis de adubacao nitrogenada. Utilizou-se o delineamento experimental de blocos ao acaso, em arranjo de parcelas subdivididas, com quatro repeticoes. As doses de nitrogenio em cobertura (0, 30, 60, 150 e 330 kg ha -1 ) foram alocadas nas parcelas, e as epocas de avaliacao (90, 120, 150, 180, 240, 300 e 360 dias apos o plantio), nas subparcelas. Os teores de acido cianidrico foram avaliados em tecidos da folha, caule, polpa e cortex da raiz da cultivar Aciolina. Os efeitos das doses de N e das epocas de avaliacao foram independentes. Doses entre 219 e 241 kg ha -1 de N em cobertura proporcionam os maiores teores de acido cianidrico, que variaram de 332 a 401 mg kg -1 de materia fresca nos tecidos avaliados. O teor de acido cianidrico nos tecidos reduz-se linearmente com a idade da planta. O cortex da raiz acumula o maior teor de acido cianidrico, e a polpa da raiz o menor. Por ocasiao da colheita, aos 360 dias apos o plantio, essa cultivare classificada como mandioca mansa.

Journal ArticleDOI
TL;DR: Investigation of the spread of Asian soybean rust and to quantify airborne urediniospores in the region of Campo Mourao, Parana State, Brazil showed that the largest epidemics occurred in the 2007/2008 crop season and that the progress rates were higher for severity, even among plants protected with the fungicide.
Abstract: Asian soybean rust, caused by the fungus Phakopsora pachyrhizi, was reported at epidemic levels in 2003/2004 and is the main soybean disease in Brazil. The aim of this study was to investigate the spread of Asian soybean rust and to quantify airborne urediniospores in the region of Campo Mourao, Parana State, Brazil. Three experiments were conducted under field conditions during the 2007/08 and 2008/09 crop seasons. Using the disease gradient method, provided by the application of increasing levels of the fungicide tebuconazole, four Asian soybean rust epidemics at different intensities were obtained in each experiment. To quantify the urediniospores, weathercock-type spore collectors were installed during and between the two crop seasons. Disease progress curves were plotted for each epidemic, and maximum severity was estimated. The curves were fit to the logistic model, which provided higher coefficients of determination and more randomly distributed residuals plotted over time. Analyses of the area under the disease progress curve showed that the largest epidemics occurred in the 2007/2008 crop season and that the progress rates were higher for severity, even among plants protected with the fungicide. The number of urediniospores collected in the air was related to the presence of soybean plants in the cultivated crops. The quantity of urediniospores was also positively correlated to the disease severity and incidence, as well as to cumulative rainfall and favorable days for P. Pachyrhizi infection.

Journal ArticleDOI
TL;DR: In this article, the authors evaluated the use of climatization on standardization of 'Prata-Ana' bananas in Boa Vista, Roraima, Brazil.
Abstract: The aim of this study was to evaluate the use of climatization on standardization of 'Prata-Ana' bananas cultivated in Boa Vista, Roraima. After harvested, fruits were selected in the shape of bouquets, sanitized, conditioned by muffling with plastic sheeting or by immersion in a Ethrel® solution, packed with low density polyethylene and stored for four time periods (0, 10, 20 and 30 days) at 12 ± 1 °C and 93 ± 2% RH. After each period of cold storage (CS), the fruits were taken out of refrigerator and submitted to the ambient condition (22 ± 1oC and 75 ± 3% R.H.), removed from the plastic bags and analyzed after 1, 2, 3 and 4 days after each period of cold storage. The following analysis were performed: loss of fresh weight, peel color, CO2/ethylene production inside the bags, enzymatic activity of polygalacturonase (PG) and of pectin methyl esterase (PE), titratable acidity (TA), total and soluble pectin content, starch content and soluble solids (SS). There were no significant differences between the methods of climatization, but it was found that as longer the period of cold storage and climatization, as lower was the shelf-life of the 'Prata-Ana' bananas. It was also shown that climatization, regardless of the method applied, must be held within 20 days after harvest, when the fruits are submitted to the CS conditions here tested. In these conditions, it was possible to maintain sensory quality of bananas for at least 3 days after removal the fruits from the cold storage.

Journal ArticleDOI
31 Aug 2012
TL;DR: In this paper, a study of the use of atrativo alimentar foi conducted in a pomares comerciais de manga das variedades, localizado in Roraima, Brazil.
Abstract: Um estudo foi conduzido no periodo de junho de 2007 a janeiro de 2008, em pomares comerciais de manga das variedades: Tommy Atkins, Haden e Palmer sendo 3 ha de cada cultivar, localizado na regiao do Bom Intento no Municipio de Boa Vista. Os especimes de moscas-das-frutas foram coletados, por meio de armadilhas, confeccionadas com garrafas pet, que foram penduradas na copa das arvores a 1,60 m de altura. Como atrativo alimentar foi utilizado 200 mL de suco de maracuja a 30%. Foram utilizadas nove armadilhas, sendo uma armadilha por hectare. Semanalmente as armadilhas eram examinadas, ocasiao em que se substituia o atrativo e os insetos capturados retirados e colocados em frascos de vidro devidamente etiquetados e transportados ao Laboratorio de Entomologia do Centro de Ciencias Agrarias da Universidade Federal de Roraima. As identificacoes dos especimes foram feitas no Instituto Nacional de Pesquisa da Amazonia - INPA. No periodo de oito meses foram coletados 24 especimes adultos do genero Anastrepha (nove femeas e 15 machos). Quatro especies foram identificadas: A. serpentina, A. striata, A. obliqua e A. turpinae. A maior frequencia foi A. serpentina (44,44%), seguida de A. striata e A. obliqua ambas com 22,22% e A. turpinae com 11,11%. Os meses de maior ocorrencia de Anastrepha spp. foram junho, julho e agosto. Este e o primeiro registro da especie Anastrepha turpinae Stone, 1942, em Roraima.

01 Jan 2012
TL;DR: The work in this paper detalla interacciones socioespaciales que se dan alrededor de BR-174 (Brasil) and the Troncal 10 (Venezuela) and actividad de the prostitucion and trafico de mujeres in el marco de las redes de actividades ilegales propias de la frontera.
Abstract: El Estado de Roraima, ubicado en la region amazonica de Brasil fronteriza con Venezuela y la Republica Cooperativista de la Guayana, es considerado una de las principales areas de trafico de mujeres para fines de explotacion sexual comercial y de otras actividades irregulares Los flujos de la referida red ilegal ganaran aun mas fuerza despues de la pavimentacion de la BR-174 carretera que conecta la ciudad de Manaus con Venezuela, lo que sumado a la facilidad para entrar y salir del pais, por via terrestre, potencializara estas practicas La investigacion que se presenta detalla las interacciones socioespaciales que se dan alrededor de la BR-174 (Brasil) y la Troncal 10 (Venezuela) y la actividad de la prostitucion y trafico de mujeres en el marco de las redes de actividades ilegales propias de la frontera

Journal ArticleDOI
TL;DR: Entada simplicata, formerly recognized as a variety of E. polystachya, is reinterpreted as a distinct legume species, based on consistent differences regarding their leaves, fruits, and fruits.
Abstract: Entada simplicata , formerly recognized as a variety of E. polystachya, is reinterpreted as a distinct legume species, based on consistent differences regarding their leaves (number of pairs and width of leaflets), and fruits (mesocarp presence, stipe and funiculus length). Illustrations and a distribution map are provided for E. simplicata , which is endemic to Roraima State, northern Amazonia, Brazil.

Journal ArticleDOI
TL;DR: The volatile oils of Dalbergia frutescens were obtained by hydrodistillation on a Clevenger-modified apparatus for every month of one year and assessed on GC/MS and GC/FID detectors for qualitative and quantitative analyses.
Abstract: The volatile oils of Dalbergia frutescens were obtained by hydrodistillation on a Clevenger-modified apparatus for every month of one year and assessed on GC/MS and GC/FID detectors for qualitative and quantitative analyses. The influence on content of volatile oils was directly proportional to the environmental variables, temperature and cloudiness, and inversely proportional to precipitation. Among the volatile compounds detected, linalool, β-damascenone, α-ionone, geranyl acetone and β-ionone were the main components, of which β-damascenone and β-ionone were found at the highest concentrations.

Journal ArticleDOI
TL;DR: In this paper, the authors analyse as relacoes sociais internas e externas of empresas localizadas in a distrito industrial de couro de Estância Velha, Brazil.
Abstract: Este artigo analisa as relacoes sociais internas e externas de empresas localizadas no distrito industrial de couro de Estância Velha - Brasil. Estas relacoes foram analisadas sob a perspectiva da confianca, a qual considera como elementos constituintes: as caracteristicas das pessoas, a continuidade dos processos e aspectos institucionais. Foram estudadas todas as 53 empresas do setor de curtumes do distrito que formaram uma rede social com 250 empresas de 6 diferentes paises, abrangendo toda a cadeia coureiro-calcadista. Neste estudo foi utilizada a metodologia de analise de redes sociais que permitiu a mensuracao de diferentes de relacionamentos. Os resultados indicam que os principais determinantes da confianca foram as relacoes processuais e institucionais; que as relacoes nao comerciais tem maior impacto que as relacoes comerciais; que a reputacao e o principal componente da confianca baseada em instituicoes e que esta e mais dependente das relacoes de amizade, que das relacoes comerciais. Tambem pode ser identificado que o indice relacional construido para a analise aumenta em funcao do aumento do porte da empresa; do tempo de existencia da organizacao; do aumento da escolaridade do empresario; e da atividade exportadora.

Journal Article
TL;DR: Agaricus blazei, Lentinula edodes, Pycnoporus sanguineus, and L. edodes mostra ser mais eficiente que os demais tratamentos as mentioned in this paper.
Abstract: O oidio (Erysiphe diffusa) tornou-se uma das principais doencas que afeta a cultura da soja (Glycine max), podendo causar reducao significativa no rendimento da cultura. Esse trabalho teve por objetivo avaliar o efeito dos extratos aquosos de Agaricus blazei, Lentinula edodes e Pycnoporus sanguineus no controle do oidio em casa-de-vegetacao e na inducao de fitoalexinas em cotiledones de soja. O delineamento experimental utilizado foi inteiramente casualizado com cinco repeticoes. Como controle utilizou-se fungicida (enxofre – 3g/L) e testemunha - sem aplicacao. Os tratamentos utilizados foram: extratos aquosos de Agaricus blazei, Lentinula edodes e Pycnoporus sanguineus na concentracao de 20 %v/v sendo estes aplicados aos 61 e 68 dias apos a semeadura. Avaliou-se a incidencia e severidade aos 59, 65, 69, 73 e 77 dias apos a semeadura em todos os foliolos de cada planta. Com os dados da severidade, calculou-se a area abaixo da curva de progresso da doenca (AACPD). Para a incidencia, detectou-se diferenca significativa entre o fungicida e os demais tratamentos. Para severidade e AACPD, observou-se que os extratos diferiram da testemunha, sendo que L. edodes mostrou ser mais eficiente que os demais tratamentos. Para o bioensaio de fitoalexinas foi aplicado sobre cada cotiledone de soja uma aliquota de 75 µL de cada extrato aquoso nas concentracoes de 1%, 2%, 4% e 10%. Apos 20 horas, os mesmos foram transferidos para erlenmeyers contendo 15 mL de agua destilada esterilizada e deixados em agitacao por 1 h para extracao da fitoalexina formada. A absorbância foi determinada a 285 nm em espectrofotometro. Observou-se um maior acumulo de fitoalexina nas maiores concentracoes dos extratos aquosos.


Journal Article
TL;DR: O presente estudo visa a utilizacao of uma rede neural artificial (RNA) para predicao da incidencia da malaria nesse municipio, a fim of auxiliar os coordenadores de saude no planejamento e gestao dos recursos.
Abstract: A malaria e uma doenca endemica em toda Amazonia Legal Brasileira, apresentando riscos diferentes para cada regiao. O municipio de Canta no estado de Roraima apresentou para todo o periodo estudado, um dos maiores indices parasitarios anuais (IPA) do Brasil, com IPA sempre maior que 50. O presente estudo visa a utilizacao de uma rede neural artificial (RNA) para predicao da incidencia da malaria nesse municipio, a fim de auxiliar os coordenadores de saude no planejamento e gestao dos recursos. Os resultados obtidos pela RNA foram comparados ao modelo de regressao logistica.

DOI
02 Jul 2012
TL;DR: A questao ambiental implica relacoes entre o homem and a natureza as mentioned in this paper, integra um leque de diferentes disciplinas como a ecologia, biologia and geografia.
Abstract: A questao ambiental implica relacoes entre o homem e a natureza Seu estudo integra um leque de diferentes disciplinas como a ecologia, biologia, geografia, historia O Meio Ambiente, nesse contexto, deve ser considerado como tema transversal, trabalhando conceitos e explicitando valores, cujos resultados tangenciam para formar uma sociedade mais critica, participativa e consciente da sua responsabilidade pelo futuro sustentavel do planeta

Journal ArticleDOI
29 Mar 2012
TL;DR: In this paper, the structural and dynamical aspects of the fluorination of graphene membranes leading to fluographene formation were investigated, using fully reactive molecular dynamics methodology, and it was shown that fluorination tends to produce significant defective areas on the graphene membrane with alteration on the typical carbon-carbon distances, sometimes with the presence of large holes due to carbon losses.
Abstract: We have investigated, using fully reactive molecular dynamics methodology, the structural and dynamical aspects of the fluorination of graphene membranes leading to fluographene formation. The strong and fast chemical reactivity processes involving fluorine produce distinct aspects of the observed in the case of the hydrogenation of graphene (the so called graphane formation). Fluorination tends to produce significant defective areas on the graphene membrane with alteration on the typical carbon-carbon distances, sometimes with the presence of large holes due to carbon losses. This may explain the broad distribution of values of lattice parameter experimentally observed.

01 Jan 2012
TL;DR: In this paper, an experiencia de investigacion educativa junto a pueblos indigenas efectuada in el estado de Roraima, region norte del Amazonas brasileno, en la frontera entre Brasil, Venezuela and the Republica Cooperativista de Guyana.
Abstract: Presentamos aqui una experiencia de investigacion educativa junto a pueblos indigenas efectuada en el estado de Roraima, region norte del Amazonas brasileno, en la frontera entre Brasil, Venezuela y la Republica Cooperativista de Guyana. En esta region amazonica, los pueblos indigenas vienen reivindicando desde hace decadas la construccion de politicas educativas para sus comunidades, lo que ha acompanado la expansion de la escolarizacion, incluso en nivel de ensenanza media, asi como en la formacion universitaria. En este contexto, el Instituto Insikiran de Formacion Superior Indigena de la Universidad Federal de Roraima viene realizando nuevas experiencias educativas destinadas a buscar alternativas de formacion que contribuyan para la definicion de acciones significativas para esta poblacion indigena. En este articulo presentamos estas experiencias y las reflexiones que de ellas han surgido

Journal ArticleDOI
TL;DR: Palavras-Chave as discussed by the authors presented and analyzed the Legend of Timbo narrated by Taurepang Indian Clemente Flores, and discussed issues related to the research with oral narratives.
Abstract: Resumo: Este artigo apresenta e analisa a lenda do Timbo, narrada pelo indio Taurepang Clemente Flores. A partir desse texto, discutem-se questoes relativas ao trabalho com narrativas orais. O texto de Flores e concebido como literario; logo, a questao central deste artigo esta na possibilidade de refletir sobre o literario fora do livro. Com isso, problematiza-se tambem o movimento entre periferia e centro; local, regional e global; e busca-se pensar a tensao velada, ou mesmo negada, quanto a existencia de uma narrativa com valores esteticos oriunda das minorias, como indigenas. Palavras-chave: narrativa oral indigena; literatura oral; periferia e centro. Abstract: This article presents and analyzes the Legend of Timbo, narrated by Taurepang Indian Clemente Flores. From this text, I discuss issues related to the research with oral narratives. Conceiving the text of Flores as literary, the central question of this article is the possibility to reflect on the literary outside the book. Therefore, I also discuss the movement between center and periphery, local, regional and global, trying to think the veiled tension, or even denied, as the existence of a narrative with aesthetic values derived of the minorities, such as indigenous. Keywords: indigenous oral narrative; oral literature; local; regional and global.

06 Jun 2012
TL;DR: The authors discute a pavimentacao da BR-174 na metade da decada de 1990 and as suas consequencias socioespaciais no estado de Roraima.
Abstract: Este artigo discute a pavimentacao da BR-174 na metade da decada de 1990 e as suas consequencias socioespaciais no estado de Roraima. O caso e apresentado como um exemplo da transformacao das intervencoes territoriais na Amazonia no contexto da neoliberalizacao do Estado e da producao de um espaco economico transnacional. Os investimentos federais para o desenvolvimento rodoviario e infraestruturas auxiliares trouxeram conectividade sem precedentes para o estado de Roraima, alem de gerar crescimento economico. Todavia, o artigo argumenta que, alem dos novos discursos de desenvolvimento regional sustentavel, as logicas dominantes dos projetos, tais como o melhoramento da BR-174, sao as de um neoliberalismo em expansao transnacional, no qual o Estado empreendedor torna-se um parceiro para o estabelecimento de mercados externos mais do que o principal agente da integracao do territorio nacional. Assim, no desenho da BR-174, Roraima aparece, principalmente, como um espaco estrategico de conexao transfronteirica que liga a Amazonia brasileira aos portos do Caribe. Entretanto, passada mais de uma decada desde a conclusao do projeto, a concentracao territorial tem se aprofundado ao passo que emergem novas desigualdades socioespaciais intimamente atreladas as funcoes e fluxos que a integracao rodoviaria criou.

01 Jan 2012
TL;DR: In this article, the chemical composition and the fatty acids profile of meats (chest and thigh/on-thigh) from broilers fed with different malt radicle amounts (10% and 20%) and control feed.
Abstract: This study analyzed the chemical composition and the fatty acids (FA) profile of meats (chest and thigh/on-thigh) from broilers fed with different malt radicle amounts (10% and 20%) and control feed. The experiment consisted of three treatments and five replicates, with 10 birds for experimental unit. Treatment with 20% radicle decreased (p > 0.05) the lipids contents (2.78 ± 0.23%, 15.40 ± 0.24%) and the total saturated fatty acids (SFA) (0.75 ± 0.03 g/100 g; 4.33 ± 0.03 g/100 g) in both chest cut and thigh/on-thigh meats, respectively. No change in the total contents of monounsaturated and polyunsaturated fatty acids (MUFAs and PUFAs) was noted after adding the malt radicle into thigh/on-thigh meats. However, the addition of 20% of malt radicle reduced the total amount of MUFAs (0.85 ± 0.04 g/100 g) and PUFAs (0.88 ± 0.08 g/100 g) in the chest meat. The increase of 10% of radicle in the feed promoted an enhancement of total PUFAs (1.81 ± 0.03 g/100 g), of n-6/n-3 ratio (21.66 ± 0.08) and PUFAs/SFA (1.24 ± 0.06) in chest meat. The use of malt radicle is a viable alternative for feeding broilers, which provides beneficial changes in the SFA, MUFAs and PUFAs profiles, especially in the bird chest meat.

Journal ArticleDOI
TL;DR: The authors discute a pavimentacao da BR-174 na metade da decada de 1990 and as suas consequencias socioespaciais no estado de Roraima.
Abstract: Este artigo discute a pavimentacao da BR-174 na metade da decada de 1990 e as suas consequencias socioespaciais no estado de Roraima. O caso e apresentado como um exemplo da transformacao das intervencoes territoriais na Amazonia no contexto da neoliberalizacao do Estado e da producao de um espaco economico transnacional. Os investimentos federais para o desenvolvimento rodoviario e infraestruturas auxiliares trouxeram conectividade sem precedentes para o estado de Roraima, alem de gerar crescimento economico. Todavia, o artigo argumenta que, alem dos novos discursos de desenvolvimento regional sustentavel, as logicas dominantes dos projetos, tais como o melhoramento da BR-174, sao as de um neoliberalismo em expansao transnacional, no qual o Estado empreendedor torna-se um parceiro para o estabelecimento de mercados externos mais do que o principal agente da integracao do territorio nacional. Assim, no desenho da BR-174, Roraima aparece, principalmente, como um espaco estrategico de conexao transfronteirica que liga a Amazonia brasileira aos portos do Caribe. Entretanto, passada mais de uma decada desde a conclusao do projeto, a concentracao territorial tem se aprofundado ao passo que emergem novas desigualdades socioespaciais intimamente atreladas as funcoes e fluxos que a integracao rodoviaria criou.

01 Jan 2012
TL;DR: In this article, the chemical composition and the fatty acids profile of meats (chest and thigh/ on-thigh) from broilers fed with different malt radicle amounts (10% and 20%) and control feed was analyzed.
Abstract: This study analyzed the chemical composition and the fatty acids (FA) profile of meats (chest and thigh/ on-thigh) from broilers fed with different malt radicle amounts (10% and 20%) and control feed. The experiment consisted of three treatments and five replicates, with 10 birds for experimental unit. Treatment with 20% radicle decreased (p > 0.05) the lipids contents (2.78 ± 0.23%, 15.40 ± 0.24%) and the total saturated fatty acids (SFA) (0.75 ± 0.03 g/100 g; 4.33 ± 0.03 g/100 g) in both chest cut and thigh/on-thigh meats, respectively. No change in the total contents of monounsaturated and polyunsaturated fatty acids (MUFAs and PUFAs) was noted after adding the malt radicle into thigh/on-thigh meats. However, the addition of 20% of malt radicle reduced the total amount of MUFAs (0.85 ± 0.04 g/100 g) and PUFAs (0.88 ± 0.08 g/100 g) in the chest meat. The increase of 10% of radicle in the feed promoted an enhancement of total PUFAs (1.81 ± 0.03 g/100 g), of n-6/n-3 ratio (21.66 ± 0.08) and PUFAs/SFA (1.24 ± 0.06) in chest meat. The use of malt radicle is a viable alternative for feeding broilers, which provides beneficial changes in the SFA, MUFAs and PUFAs profiles, especially in the bird chest meat.