8 research outputs found

    Biologia reprodutiva e variação geográfica de Zachaenus carvalhoi (Anura: Cycloramphidae), um anuro da Mata Atlântica

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    Information is presented on the reproductive biology, habitat, behavior, morphology, and variation in advertisement call in Zachaenus carvalhoi, a rare frog for which basic natural history data are lacking. The species inhabits forest leaf litter in the states of Minas Gerais and Espírito Santo in southeastern Brazil. Reproductive individuals were found from October to December; females are slightly larger than males. The International Union for Conservation of Nature currently lists Zachaenus carvalhoi as Data Deficient. We suggest transferring the species to the Near Threatened category based on the IUCN criteria A2 because of the decline of the size and quality of its severely fragmented habitatApresentamos aqui informações sobre biologia reprodutiva, habitat, comportamento, morfologia e variação no canto de anúncio de Zachaenus carvalhoi, um anuro raro para o qual dados básicos de história natural são escassos. A espécie habita o folhiço de florestas nos estados de Minas Gerais e Espírito Santo, sudeste do Brasil. Indivíduos em estado reprodutivo são encontrados de outubro a dezembro, e as fêmeas são pouco maiores que os machos. A União Internacional para a Conservação da Natureza atualmente inclui Zachaenus carvalhoi na categoria Dados Deficientes. Sugerimos transferir a espécie para a categoria Quase Ameaçada, baseados no Critério A2, que inclui diminuição contínua da extensão e qualidade do seu habitat, já severamente fragmentad

    An Innovative Way to Add Value to Organizations: People Relationship Modeling

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    Part IV: ICT and Emerging TechnologiesInternational audienceCommunications agencies are private organizations that have a fundamental role in marketing and communication markets. Following this perspective, this study, with the support of Social Network Analysis tools, the structure of an agency will be modeled with the purpose of identifying the most important actors and its relationships, and show its interdependence with the workflow of the production chain. To achieve compatible results with the organization goals, it is important that their areas or teams relate with one another so as to optimize their production processes. With support of the Ucinet® software and its integrated module NetDraw®, this paper describes through a case study, how to implement this innovative approach and follow the evolution of the network in order to improve their operational performance. The results pointed out an increase in productivity after the analysis and change in the organization’s internal communication

    Preventive diagnosis of dairy cow lameness

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    This research aimed to develop a Fuzzy inference based on expert system to help preventing lameness in dairy cattle. Hoof length, nutritional parameters and floor material properties (roughness) were used to build the Fuzzy inference system. The expert system architecture was defined using Unified Modelling Language (UML). Data were collected in a commercial dairy herd using two different subgroups (H-1 and H-2), in order to validate the Fuzzy inference functions. The numbers of True Positive (TP), False Positive (FP), True Negative (TN), and False Negative (FN) responses were used to build the classifier system up, after an established gold standard comparison. A Lesion Incidence Possibility (LIP) developed function indicates the chances of a cow becoming lame. The obtained lameness percentage in H-1 and H-2 was 8.40% and 1.77%, respectively. The system estimated a Lesion Incidence Possibility (LIP) of 5.00% and 2.00% in H-1 and H-2, respectively. The system simulation presented 3.40% difference from real cattle lameness data for H-1, while for H-2, it was 0.23%; indicating the system efficiency in decision-making.Esta pesquisa teve como objetivo desenvolver um sistema especialista baseado em inferência Fuzzy para prevenir a laminite em vacas leiteiras. O comprimento do casco, parâmetros nutricionais e propriedades do piso (rugosidade) foram utilizados para construir o sistema de inferência Fuzzy. A arquitetura do sistema especialista foi definida utilizando a Unified Modeling Language (UML). Os dados foram coletados em um rebanho leiteiro comercial, usando dois diferentes subgrupos (H1 e H2), a fim de validar as funções de inferência Fuzzy. O número de respostas Verdadeiro Positivo (TP), Falso Positivo (FP), Verdadeiro Negativo (TN) e Falso Negativo (FN) foram utilizados para a construção do classificador, contra um padrão-ouro estabelecido. A função da possibilidade de incidência da lesão (LIP) desenvolvida indica a chance de a vaca apresentar laminite. A percentagem de laminite obtida em H1 foi de 8,40%, e em H2 foi de 1,77%. Os resultados alcançados estimam uma Possibilidade de incidência de lesão (LIP) de 5,00% em H1, e de 2,00% em H2. A simulação utilizando o sistema em H1 apresentou a diferença de 3,40% a partir dos dados reais de incidência de laminite, enquanto em H2 a diferença entre a simulação e os dados reais foi de 0,23%, indicando a eficiência do sistema de tomada de decisão

    A new large canopy-dwelling species of Phyllodytes Wagler, 1930 (Anura, Hylidae) from the Atlantic Forest of the state of Bahia, Northeastern Brazil

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    The known diversity of treefrogs of the genus Phyllodytes has rapidly increased in recent years, currently comprising 14 species. Recent field work in the Atlantic Rainforest of the state of Bahia lead to the discovery of a new large species of Phyllodytes which is herein described based on multiple evidence including morphological, acoustical and genetic data. Phyllodytes sp. nov. is one of the largest species within the genus and presents immaculate yellowish dorsum and limbs. The advertisement call of the species is composed of 7–31 notes (half pulsed/pulsatile-half harmonic) with frequency-modulated harmonics. Phyllodytes sp. nov. has a karyotype of 2n = 22 chromosomes, as also found in other species of the genus. Genetic distance values of the 16S mitochondrial rRNA among Phyllodytes sp. nov. and its congeners range between 6.4 to 10.2%. The description of another new species for this state reinforces the need for further taxonomic work with Phyllodytes in this region that has been revealed as a priority area for research and conservation of this genus

    A new species of Bachia Gray, 1845 (Squamata: Gymnophthalmidae) from the western Brazilian Amazonia

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    Jr, Mauro Teixeira, Vechio, Francisco Dal, Sales Nunes, Pedro M., Neto, Antonio Mollo, Lobo, Luciana Moreira, Storti, Luis Fernando, Gaiga, Renato Augusto Junqueira, Dias, Pedro Henrique Freire, Rodrigues, Miguel Trefaut (2013): A new species of Bachia Gray, 1845 (Squamata: Gymnophthalmidae) from the western Brazilian Amazonia. Zootaxa 3636 (3): 401-420, DOI: 10.11646/zootaxa.3636.3.

    Mauro Teixeira Jr, Francisco Dal Vechio, Pedro M. Sales Nunes, Antonio

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    Jr, Mauro Teixeira, Vechio, Francisco Dal, Sales Nunes, Pedro M., Neto, Antonio Mollo, Lobo, Luciana Moreira, Storti, Luis Fernando, Gaiga, Renato Augusto Junqueira, Dias, Pedro Henrique Freire, Rodrigues, Miguel Trefaut (2013): Mauro Teixeira Jr, Francisco Dal Vechio, Pedro M. Sales Nunes, Antonio. Zootaxa 3646 (2): 200-200, DOI: http://dx.doi.org/10.11646/zootaxa.3646.2.1
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