Institution
Federal University of Roraima
Education•
About: Federal University of Roraima is a based out in . It is known for research contribution in the topics: Population & Thermogravimetry. The organization has 981 authors who have published 1218 publications receiving 7849 citations. The organization is also known as: Federal University of Roraima.
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TL;DR: In this paper, the development of entomopathogenic fungi on Ctenocephalides felis felis was investigated by scanning electron microscopy, and conidia attachments encompassed the entire flea cuticle, especially on abdominal intersegmental membranes.
Abstract: The flea Ctenocephalides felis felis is a parasite that causes allergic dermatitis and also may transmit etiologic agents to domestic animals and humans. This study investigated by scanning electron microscopy the development of entomopathogenic fungi on flea cuticle. Fleas were exposed to conidia (10(8) ml(-1)) of Metarhizium anisopliae (isolate 959) or Beauveria bassiana (isolate 986). Following standard protocols for electron microscopy, the specimens were prepared 2, 15, 26 and 96 h after infection. The micrography revealed that 2 h after fungus exposure, conidia attachments encompassed the entire flea cuticle, especially on abdominal intersegmental membranes. The emergence of germ tubes and appressoria formation occurred at 15 h, thickening and branching of hyphae on the flea cuticle was noted at 26 h. Therefore, both of these fungal isolates were able to develop on cuticular surfaces of C. f. felis.
2 citations
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05 May 2014-Revista de Ciências Agrarias - Amazon Journal of Agricultural and Environmental Sciences
TL;DR: Evaluated cowpea seeds produced in Roraima state, Brazil showed that the seed breeding lines presented low water contents, and MNCO2-682F-2-6 upright habit lineage showed better germination rate and vigor, while MNCo2-684F-5-6 lineage presented lower percentage of germination and emergence in sand substrate.
Abstract: The physiological quality of seeds is important to obtain high crop yields. The aim of this study was to evaluate the physical and physiological quality of 16 upright growth habit lineages and 15 prostrate growth habit lineages of cowpea seeds produced in Roraima state, Brazil. Two trials were assessed: the first with 16 lineages and the second with 15 lineages. The study was carried out in a completely randomized experimental design with four replicates. After field operations of harvesting and threshing, seeds were assessed for mass of one thousand seeds and water content. The physiological quality of seeds was assessed with respect to germination rate, first germination count, electrical conductivity, plantlet emergence and plantlet emergence velocity in sand substrate. The results obtained showed that the seed breeding lines presented low water contents. MNCO2-682F-2-6 upright habit lineage showed better germination rate and vigor, while MNCO2-684F-5-6 lineage presented lower percentage of germination and emergence in sand substrate. MNCO1- 649F-1-3 prostrate habit lineage showed lower performance. Ten of the upright habit lineages and none of the prostrate habit lineages studied presented seeds with germination rates higher than 80%.
2 citations
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13 Jan 2017TL;DR: A Cidade de Boa Vista, capital do Estado de Roraima, passou por transformacoes em sua estrutura fisica e social intensificadas no final do seculo XX e inicio do XXI em grande parte intentadas pelo poder publico.
Abstract: A Cidade de Boa Vista, capital do Estado de Roraima, passou por transformacoes em sua estrutura fisica e social intensificadas no final do seculo XX e inicio do XXI em grande parte intentadas pelo poder publico. Na Zona Oeste ocupacoes irregulares foram se multiplicando nas decadas de 1980 e 1990, contrastando com a Zona Leste bem organizada. Nesse sentido o presente trabalho trata as acoes de planejamento e gestao voltadas para a cidade na tentativa de (re)organizar o espaco urbano por meio do Plano Diretor de Desenvolvimento Urbano de 1991 e do Plano Diretor Estrategico e Participativo de 2006 focando em uma area de lazer estrategica, o Parque Municipal Germano Augusto Sampaio localizado na Zona Oeste. Aspectos fisicos e sociais do local foram considerados em uma analise temporal com base em imagens de satelite e dados coletados por meio de pesquisa de campo, sendo possivel constatar que as politicas publicas urbanas na cidade, apesar da importância social, nao cumprem as legislacoes ambientais brasileiras, o que resulta na degradacao dos recursos naturais.
2 citations
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07 Dec 2020
TL;DR: Palavras-CHAVE as mentioned in this paper analyzes as relacoes axio(dia)logicas between dialogicas e axiologicas in exposicao oral de Paulo de Tarso sobre o Tabernaculo (ou templo) como corpo.
Abstract: No âmbito do pensamento de Bakhtin, a linguagem consiste em uma atividade essencialmente social e heterogenea, que se apresenta perante os sujeitos da enunciacao de forma multifacetada. Numa perspectiva enunciativo-discursiva da linguagem, este estudo objetiva analisar as relacoes dialogicas e axiologicas na exposicao oral de Paulo de Tarso sobre o Tabernaculo (ou templo) como corpo, em seu discurso sobre o novo homem, em sua segunda carta aos Corintios. Assim, e preciso averiguar como o posicionamento axiologico de Paulo se estabelece em situacoes sociocomunicativas orais do uso da lingua. O corpus constitui-se de 4 (quatro) versiculos biblicos (II Cor. 5. 1-4) relatados por Paulo. A versao biblica que se adotou como suporte e referencia para a composicao deste trabalho foi a Biblia de Jerusalem, cuja traducao foi realizada direto dos textos originais (hebraico e grego). A base teorica que subsidia o nosso trabalho ganha concretude na Analise Dialogica do Discurso (BRAIT, 2006), que reinsere no campo das producoes filosofico-cientificas a teoria formulada por Bakhtin (2006, 2010, 2012), Medviedev (2016 [1928]) e Volochinov (2017 [1929]). A analise evidencia que o discurso paulino sobre o corpo efetiva um processo de constituicao intersubjetiva entre corintios e hebreus. PALAVRAS-CHAVE: Relacoes axio(dia)logicas. Discurso religioso. Tabernaculo. DOI: https://doi.org/10.47295/mgren.v9i3.2608
2 citations
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TL;DR: Theodor Koch-Grunberg (1872-1924) was a German anthropologist who made four visits to Brazil between 1896 and 1924, and who was especially noted for his writings about the Indians of the Rio Negro and Rio Branco, and the ethnographic collections, sound recordings, photography and films made during these journeys as mentioned in this paper.
Abstract: The article characterizes the ethnological theory and method of Theodor Koch-Grunberg (1872-1924), a German anthropologist who made four visits to Brazil between 1896 and 1924, and who was especially noted for his writings about the Indians of the Rio Negro and Rio Branco, and the ethnographic collections, sound recordings, photography and films made during these journeys. The author relates this documentary material with Koch-Grunberg's ethnographic project within the tradition of German Volkerkunde.
2 citations
Authors
Showing all 984 results
Name | H-index | Papers | Citations |
---|---|---|---|
A. Townsend Peterson | 91 | 521 | 51524 |
Felipe Gomes Naveca | 25 | 97 | 2612 |
Pablo Acosta | 23 | 91 | 3629 |
Adrian Martin Pohlit | 21 | 69 | 1491 |
Regina V. Oliveira | 20 | 48 | 1146 |
Maria Goreti Rosa-Freitas | 20 | 34 | 990 |
S. B. Legoas | 18 | 45 | 2150 |
Luciano Nicolás Naka | 18 | 44 | 1415 |
Rodrigo Rodrigues | 17 | 152 | 1128 |
Robson F. de Farias | 16 | 86 | 925 |
Adriana Flach | 15 | 34 | 642 |
Regynaldo Arruda Sampaio | 15 | 128 | 1001 |
Elizanilda Ramalho do Rêgo | 14 | 90 | 793 |
Raynner Rilke Duarte Barboza | 14 | 41 | 977 |
Fabiana Granja | 14 | 41 | 915 |