Aplicaçao da mecânica dos corpos deformáveis r análise de consistencia de observaçoes em redes geodésicas horizontais

Orientador: Camil GemaelDissertaçao (mestrado) -Universidade Federal do Paraná. Curso de Pós-Graduaçao em Ciencias GeodésicasResumo: Uma metodologia alternativa para análise do grau de consistência das observações integrantes de uma rede geodésica planimétrica é apresentada. O princípio desta nova metodologia jaz no estabelecimento de analogia entre redes geodésicas e corpos deformáveis. Assim, a rede é tratada como um corpo sujeito a experimentar deformações, e as observações como possíveis agentes deformadores. Através do estudo da geometria da deformação subtendida pela rede, em função de uma determinada observação geodésica, pretendemos inferir quanto ao nível de consistência desta observação. Para alcançar este propósito, um modelo matemático é desenvolvido tendo em vista a obtenção de um conjunto de parâmetros que retratem o estado da deformação na rede. A apresentação dos resultados é feita através de uma representação gráfica dos referidos parâmetros.Abstract: An alternative methodology for analysing the degree of consistency of observations in a horizontal geodetic network is presented. The basic idea behind this new methodology lies on the establishment of an analogy between geodetic networks and deformable bodies. In this way the network is treated as a body that can be strained, and the observations are reguarded as possible deformation agents. By analysing the geometry of the deformation undergone by the network, caused by one of its observations, we intend to infer how consistent this observation is. To reach this purpose a mathematical model is developed having in sight the attainment of a set of parameters that can be able to portray the state of strain in the network. The presentation of results is carried out by means of graphical display of the mentioned parameters

Genome sequence of Enterococcus mundtii EM01, isolated from Bombyx mori midgut and responsible for flacherie disease in silkworms reared on an artificial diet

The whole genome sequence of Enterococcus mundtii strain EM01 is reported here. The isolate proved to be the cause of flacherie in Bombyx mori. To date, the genomes of 11 other E. mundtii strains have been sequenced. EM01 is the only strain that displayed active pathological effects on its associated animal species

Comportamento dos Consumidores de Produtos Falsificados: Por Que Compram Esse Tipo de Produto?

O presente estudo teve como objetivo investigar os principais fatores que motivam os consumidores a comprar produtos falsificados. Os dados do estudo foram obtidos por meio de entrevistas em profundidade com 15 consumidores de produtos falsificados moradores dos estados do Rio de Janeiro e de São Paulo. As entrevistas foram guiadas por um roteiro semiestruturado de perguntas. Os resultados mostraram que os principais bens falsificados consumidos pelos entrevistados são acessórios (óculos, relógios, bolsas), roupas e calçados. Os resultados apontaram que a principal motivação para a compra desses itens é o preço mais baixo. Porém, é possível perceber também uma valorização da marca, pois eles compram produtos falsificados de marcas específicas e não produtos genéricos. Eles veem como uma vantagem comprar um produto falsificado de determinada marca por um preço mais baixo, já que pode produzir um efeito semelhante ao produto original. O local em que compram esses produtos varia desde sites até comércio de rua ou diretamente com vendedores. Apesar de relatarem que assumem sem problema que utilizam produtos falsificados, eles demonstraram que só o fazem quando alguém pergunta ou a ocasião permite um comentário desse tipo. Caso contrário, ficam quietos e deixam passar despercebido

The complete genome sequence of Trueperella pyogenes UFV1 reveals a processing system involved in the quorumsensing signal response

We present here the complete genome sequence of Trueperella pyogenes UFV1. The 2.3-Mbp genome contains an extremely interesting AI-2 transporter and processing system related to the quorum-sensing signal response. This specific feature is described in this species for the first time and might be responsible for a new pathogenic behavior

Phylobetadiversity among Forest Types in the Brazilian Atlantic Forest Complex

Phylobetadiversity is defined as the phylogenetic resemblance between communities or biomes. Analyzing phylobetadiversity patterns among different vegetation physiognomies within a single biome is crucial to understand the historical affinities between them. Based on the widely accepted idea that different forest physiognomies within the Southern Brazilian Atlantic Forest constitute different facies of a single biome, we hypothesize that more recent phylogenetic nodes should drive phylobetadiversity gradients between the different forest types within the Atlantic Forest, as the phylogenetic divergence among those forest types is biogeographically recent. We compiled information from 206 checklists describing the occurrence of shrub/tree species across three different forest physiognomies within the Southern Brazilian Atlantic Forest (Dense, Mixed and Seasonal forests). We analyzed intra-site phylogenetic structure (phylogenetic diversity, net relatedness index and nearest taxon index) and phylobetadiversity between plots located at different forest types, using five different methods differing in sensitivity to either basal or terminal nodes (phylogenetic fuzzy weighting, COMDIST, COMDISTNT, UniFrac and Rao’s H). Mixed forests showed higher phylogenetic diversity and overdispersion than the other forest types. Furthermore, all forest types differed from each other in relation phylobetadiversity patterns, particularly when phylobetadiversity methods more sensitive to terminal nodes were employed. Mixed forests tended to show higher phylogenetic differentiation to Dense and Seasonal forests than these latter from each other. The higher phylogenetic diversity and phylobetadiversity levels found in Mixed forests when compared to the others likely result from the biogeographical origin of several taxa occurring in these forests. On one hand, Mixed forests shelter several temperate taxa, like the conifers Araucaria and Podocarpus. On the other hand, tropical groups, like Myrtaceae, are also very representative of this forest type. We point out to the need of more attention to Mixed forests as a conservation target within the Brazilian Atlantic Forest given their high phylogenetic uniqueness

Draft genome sequence of the yeast Starmerella bacillaris (syn., Candida zemplinina) FRI751 isolated from fermenting must of dried Raboso grapes

Starmerella bacillaris is an ascomycetous yeast commonly present in enological environments. Here, we report the first draft genome sequence of S.\ua0bacillaris FRI751, which will facilitate the study of the characteristics of this interesting enological yeast

In vitro Probiotic Potential and Anti-cancer Activity of Newly Isolated Folate-Producing Streptococcus thermophilus Strains

Most probiotic strains commercially available today are lactic acid bacteria. Within this functional group, Streptococcus thermophilus is a thermophilic species widely used as starter culture for a huge number of dairy products. Besides being rapid acidifiers, many S. thermophilus strains are able to produce and release folate during growth but, unfortunately, they are seriously impaired during passage through the human gastrointestinal tract. In this work, we studied eight S. thermophilus strains isolated from dairy environments in Italy, which already had shown good technological properties, to evaluate their possible probiotic potential and cytotoxicity against cancer cells in vitro. All strains were also evaluated for some health-related properties such as susceptibility to most common antibiotics, hemolytic activity, resistance to simulated gastrointestinal conditions, bile salts hydrolytic activity, production of folate, adhesion to HT-29 human colorectal adenocarcinoma cells and cytotoxic activity against cancer cells and production of biogenic amines. Results revealed that two fast acidifying S. thermophilus strains were found to possess in vitro probiotic properties along with anticancer activity and production of folate. These properties resulted similar and, in some cases, superior to those of Lactobacillus rhamnosus GG, a well-known commercial probiotic strain. These findings encourage further in vivo studies to evaluate the actual health benefits of these strains on the human host

Educação Física escolar e multimídias: novos contextos de implementação da BNCC

This article presents a theoretical discussion, from bibliographical of excerpts, which addresses the problematization of Physical Education (PE) content, along with the Common National Curriculum Base, in the virtual learning environment using technological resources on the platform digital, while emphasizing the scenario of social confinement. The objective is to present cutout methods, as a reference for a systematized planning for Physical Education classes, based on bibliographic research on the methodological approach of participant observation and the didactic guidelines of the Federal Council of Physical Education. The study of this research covers the possibilities of interaction with teaching tools in the context of multiple learning, cooperation of family members and colleagues in activities, objectives of Physical Education in remote learning in the BNCC proposal, government actions in social confinement in distance learning (EAD), profile of the digital student at BNCC, the importance of the contribution of the didactic sequence in Physical Education and the results and discussions of LDB in physical education. The conclusion that teachings on digital platforms encompass strategic resources, in order to guarantee qualitative teaching, BNCC includede in the scope of basic training a great focus on technology, considering the growing need to train citizens with digital literacy, in the content of Physical Education.Este artigo apresenta uma discussão teórica, de recortes bibliográficas, que aborda a problematização dos conteúdos da Educação Física (EF), junto com a base nacional comum curricular (BNCC), no ambiente virtual de aprendizagem (AVA) com uso de recursos tecnológicos na plataforma digital, ao mesmo tempo enfatizando o cenário de confinamento social. O objetivo, é apresentar métodos   de recortes, como referência para o um planejamento sistematizado para as aulas de Educação Física, tendo como base as pesquisas recortes bibliográficas da abordagem metodológica da observação participantes e as orientações didáticas do Conselho Federal de Educação Física (CONFEF). O estudo dessa pesquisa abranger as possibilidades de interação com as ferramentas de ensino em âmbito de múltiplas aprendizagens, cooperação dos familiares e dos colegas nas atividades, objetivos da Educação Física no ensino remoto na proposta da BNCC, ações governamentais no confinamento social no ensino a distância (EAD), perfil do aluno digital na (BNCC), a importância da contribuição da sequência didática na Educação Física e os resultados e discussões da (LDB) na Educação Física. A conclusão que os ensinamentos nas plataformas digitais abrangem recursos estratégicos, de forma que garantir um ensino qualitativo, a BNCC incluiu no escopo da formação básica um grande enfoque em tecnologia, considerando a necessidade cada vez maior de formar cidadãos com letramento digital no conteúdo da Educação Física

Influence of cervical preflaring and root canal preparation on the fracture resistance of endodontically treated teeth

Background: Evaluate the fracture resistance of endodontically treated teeth after cervical preflaring and root canal preparation and to assess the volume of the root canal and the amount of remaining root dentin before and after cervical preflaring. Methods: Forty-four mandibular incisors were selected using micro-CT scanning and distributed into 4 groups (n = 11) according to the instrument used for cervical preflaring: control group - no cervical preflaring; Gates Glidden – burs size #2 and #3; WXN – 25.07 Navigator instrument; and Easy – 25.08 ProDesign S instrument. Coronal opening was performed, and the canals were prepared with Wave One Gold Primary and filled with an epoxy-resin based sealer and gutta-percha cones. Micro-CT scans were performed before and after root canal instrumentation. All images were reconstructed and assessed for the thickness of mesial and distal root dentin at 3 mm and 5 mm from the cement -enamel junction and for the volume of cervical portion of the canal after preparation. Fracture resistance test was performed applying compressive loads at a crosshead speed of 0.5 mm/min, applied on the palatal aspect of specimens at 135° along the long axis of the tooth. The data were analyzed using ANOVA and Tukey’s test (P = .05). Results: Cervical preflaring and canal preparation reduced the dentin thickness (P < .05) and increased the canal volume (P < .05) in all groups at 3 mm an 5 mm. Cervical preflaring with Gates Gliden burs reduced the fracture resistance of endodontically treated teeth (P < .05). Conclusions: All instruments reduced the dentin thickness and increased the canal volume in the cervical at 3 mm and 5 mm. Gates Glidden reduced fracture resistance of mandibular incisors submitted to cervical preflaring, whereas NiTi instruments did not