71 research outputs found

    Elaboração de planilha para o controle da produção de uma lancha

    Get PDF
    TCC (graduação) - Universidade Federal de Santa Catarina. Campus Joinville. Engenharia Naval.O setor náutico no brasil, possui enorme potencial de crescimento podendo gerar maior competitividade entre as empresas, por tanto, os planejamentos são de importantes para utilização racional de recursos e crescimento do estaleiro. As planilhas que apoiam os planejamentos e controle da produção, ajudam as empresas a analisar fatos que acontecem em seu chão de fábrica, possibilitando a redução de custos de estoque, gerando estimativa de prazo de entrega mais confiável e otimizando a utilização dos recursos. O presente trabalho teve como objetivo montar uma planilha para o controle da produção de uma embarcação de fibra de vidro de 30 pés, construída pelo estaleiro Freccia Boats, localizado em Itajaí, Santa Catarina. A elaboração da planilha iniciou-se pela definição do objeto de estudo, a embarcação FRECCIA 300, então foram feitas inúmeras pesquisas na literatura voltada para temas de Engenharia de Produção e gestão industrial, para dar os fundamentos necessários para o entendimento do plano de construção da embarcação. A atividade feita dentro do estaleiro, iniciou-se pela coleta de dados de matéria-prima analise temporal do processo de fabricação, lead time de fornecedores e sequenciamento de montagem. Após validação dos dados, com auxílio das ferramentas Excel e MS Project os dados foram organizados e possibilitando fazer a programação das planilhas para controle de estoque assim como o sistema de compras que tem como função apresentar quanto, quando e o que comprar, para que a construção da embarcação siga com menos ociosidades no chão de fábrica e custos desnecessários

    Um breve estudo sobre o nado borboleta

    Get PDF
    Um breve estudo sobre o nado borbolet

    CARACTERÍSTICAS DE SUBSTRATOS UTILIZADOS NO CULTIVO DE PLANTAS ORNAMENTAIS

    Get PDF
    O substrato agrícola é muito utilizado, tanto na produção de mudas quanto no cultivo de determinadas espécies, para que seu uso seja mais eficiente é necessário que suas características sejam conhecidas, porém, um problema muito comum é a falta de informações nas embalagens dos produtos, bem como, a falta de informação tanto para o consumidor quanto para os profissionais que realizam as vendas desse produto. Este trabalho tem como intuito a comparação entre diferentes substratos, sendo eles Húmus, Violeta e Flormix buscando a diferenciação entre eles e esclarecer sua composição. Os testes foram realizados no laboratório da Universidade do Oeste de Santa Catarina – UNOESC Maravilha, e foram avaliadas as características físicas como densidade, porosidade, granulometria e potencial mátrico, a característica química observada foi o pH. Foi possível observar que o Húmus possui mais sólidos, porém com menor granulometria, o Violeta tem como característica maior potencial mátrico em relação ao Húmus e Flormix. O substrato Flormix apresentou pH 5,2, valor próximo ao ideal 5,5 - 6,0. Todo substrato tem características próprias que devem ser observadas para o uso correto do mesmo

    Whale, whale, everywhere: increasing abundance of western South Atlantic humpback whales (Megaptera novaeangliae) in their wintering grounds

    Get PDF
    The western South Atlantic (WSA) humpback whale population inhabits the coast of Brazil during the breeding and calving season in winter and spring. This population was depleted to near extinction by whaling in the mid-twentieth century. Despite recent signs of recovery, increasing coastal and offshore development pose potential threats to these animals. Therefore, continuous monitoring is needed to assess population status and support conservation strategies. The aim of this work was to present ship-based line-transect estimates of abundance for humpback whales in their WSA breeding ground and to investigate potential changes in population size. Two cruises surveyed the coast of Brazil during August-September in 2008 and 2012. The area surveyed in 2008 corresponded to the currently recognized population breeding area; effort in 2012 was limited due to unfavorable weather conditions. WSA humpback whale population size in 2008 was estimated at 16,410 (CV = 0.228, 95% CI = 10,563–25,495) animals. In order to compare abundance between 2008 and 2012, estimates for the area between Salvador and Cabo Frio, which were consistently covered in the two years, were computed at 15,332 (CV = 0.243, 95% CI = 9,595–24,500) and 19,429 (CV = 0.101, 95% CI = 15,958–23,654) whales, respectively. The difference in the two estimates represents an increase of 26.7% in whale numbers in a 4-year period. The estimated abundance for 2008 is considered the most robust for the WSA humpback whale population because the ship survey conducted in that year minimized bias from various sources. Results presented here indicate that in 2008, the WSA humpback whale population was at least around 60% of its estimated pre-modern whaling abundance and that it may recover to its pre-exploitation size sooner than previously estimated.Publisher PDFPeer reviewe

    A Comparative Chemogenomics Strategy to Predict Potential Drug Targets in the Metazoan Pathogen, Schistosoma mansoni

    Get PDF
    Schistosomiasis is a prevalent and chronic helmintic disease in tropical regions. Treatment and control relies on chemotherapy with just one drug, praziquantel and this reliance is of concern should clinically relevant drug resistance emerge and spread. Therefore, to identify potential target proteins for new avenues of drug discovery we have taken a comparative chemogenomics approach utilizing the putative proteome of Schistosoma mansoni compared to the proteomes of two model organisms, the nematode, Caenorhabditis elegans and the fruitfly, Drosophila melanogaster. Using the genome comparison software Genlight, two separate in silico workflows were implemented to derive a set of parasite proteins for which gene disruption of the orthologs in both the model organisms yielded deleterious phenotypes (e.g., lethal, impairment of motility), i.e., are essential genes/proteins. Of the 67 and 68 sequences generated for each workflow, 63 were identical in both sets, leading to a final set of 72 parasite proteins. All but one of these were expressed in the relevant developmental stages of the parasite infecting humans. Subsequent in depth manual curation of the combined workflow output revealed 57 candidate proteins. Scrutiny of these for ‘druggable’ protein homologs in the literature identified 35 S. mansoni sequences, 18 of which were homologous to proteins with 3D structures including co-crystallized ligands that will allow further structure-based drug design studies. The comparative chemogenomics strategy presented generates a tractable set of S. mansoni proteins for experimental validation as drug targets against this insidious human pathogen

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

    Get PDF
    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

    Mapping density, diversity and species-richness of the Amazon tree flora

    Get PDF
    Using 2.046 botanically-inventoried tree plots across the largest tropical forest on Earth, we mapped tree species-diversity and tree species-richness at 0.1-degree resolution, and investigated drivers for diversity and richness. Using only location, stratified by forest type, as predictor, our spatial model, to the best of our knowledge, provides the most accurate map of tree diversity in Amazonia to date, explaining approximately 70% of the tree diversity and species-richness. Large soil-forest combinations determine a significant percentage of the variation in tree species-richness and tree alpha-diversity in Amazonian forest-plots. We suggest that the size and fragmentation of these systems drive their large-scale diversity patterns and hence local diversity. A model not using location but cumulative water deficit, tree density, and temperature seasonality explains 47% of the tree species-richness in the terra-firme forest in Amazonia. Over large areas across Amazonia, residuals of this relationship are small and poorly spatially structured, suggesting that much of the residual variation may be local. The Guyana Shield area has consistently negative residuals, showing that this area has lower tree species-richness than expected by our models. We provide extensive plot meta-data, including tree density, tree alpha-diversity and tree species-richness results and gridded maps at 0.1-degree resolution
    corecore