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  • 1
    In: Dental Press Endodontics, Dental Press International, Vol. 9, No. 3 ( 2019-9-5), p. 62-66
    Abstract: Objetivo: o presente estudo teve como objetivo caracterizar as dimensões dos instrumentos Reciproc R25 e X1 Blue File, e dos cones de guta-percha da Mk Life R25, Reciproc R25 e DiaDent R25, para verificar qual cone de guta-percha se adapta melhor no preparo dos instrumentos. Métodos: dez instrumentos Reciproc R25 25/0,08v e X1Blue File 25/0,06; e dez cones de guta-percha Dia- Dent R25, Mk Life R25 e Reciproc R25 foram utilizados. As imagens foram obtidas através de uma lupa estereoscópica com uma câmera digital acoplada. As medidas foram obtidas através do programa TS View. Os diâmetros dos instrumentos e dos cones de guta-percha foram determinados em D0 até D9, com intervalos de medidas de 1,0 mm; e a conicidade foi calculada adotando-se os diâmetros D8 e D1. Os resultados obtidos foram submetidos à análise estatística utilizando o programa Primer of biostatistics versão 6.0. Resultados: apesar da maior conicidade dos instrumentos X1Blue file (0,07mm/mm), não houve diferença estatisticamente significativa entre os instrumentos nos três primeiros milímetros (p 〉 0,05), o mesmo ocorreu para a conicidade dos cones (p 〉 0,05). Os cones de guta-percha apresentaram diferença estatisticamente significativa em todos os diâmetros aferidos (p 〈 0,05). Conclusão: os instrumentos e os cones de guta-percha atenderam à recomendação das respectivas normas ANSI/ADA. O cone de guta-percha que apresentou maior compatibilidade dimensional com os diâmetros dos instrumentos foi o MK life, e VDW foi o que apresentou maior desajuste.
    Type of Medium: Online Resource
    ISSN: 2358-2545
    URL: Issue
    URL: Issue
    Language: Portuguese
    Publisher: Dental Press International
    Publication Date: 2019
    Location Call Number Limitation Availability
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  • 2
    In: TAXON, Wiley, Vol. 71, No. 1 ( 2022-02), p. 178-198
    Abstract: The shortage of reliable primary taxonomic data limits the description of biological taxa and the understanding of biodiversity patterns and processes, complicating biogeographical, ecological, and evolutionary studies. This deficit creates a significant taxonomic impediment to biodiversity research and conservation planning. The taxonomic impediment and the biodiversity crisis are widely recognized, highlighting the urgent need for reliable taxonomic data. Over the past decade, numerous countries worldwide have devoted considerable effort to Target 1 of the Global Strategy for Plant Conservation (GSPC), which called for the preparation of a working list of all known plant species by 2010 and an online world Flora by 2020. Brazil is a megadiverse country, home to more of the world's known plant species than any other country. Despite that, Flora Brasiliensis , concluded in 1906, was the last comprehensive treatment of the Brazilian flora. The lack of accurate estimates of the number of species of algae, fungi, and plants occurring in Brazil contributes to the prevailing taxonomic impediment and delays progress towards the GSPC targets. Over the past 12 years, a legion of taxonomists motivated to meet Target 1 of the GSPC, worked together to gather and integrate knowledge on the algal, plant, and fungal diversity of Brazil. Overall, a team of about 980 taxonomists joined efforts in a highly collaborative project that used cybertaxonomy to prepare an updated Flora of Brazil, showing the power of scientific collaboration to reach ambitious goals. This paper presents an overview of the Brazilian Flora 2020 and provides taxonomic and spatial updates on the algae, fungi, and plants found in one of the world's most biodiverse countries. We further identify collection gaps and summarize future goals that extend beyond 2020. Our results show that Brazil is home to 46,975 native species of algae, fungi, and plants, of which 19,669 are endemic to the country. The data compiled to date suggests that the Atlantic Rainforest might be the most diverse Brazilian domain for all plant groups except gymnosperms, which are most diverse in the Amazon. However, scientific knowledge of Brazilian diversity is still unequally distributed, with the Atlantic Rainforest and the Cerrado being the most intensively sampled and studied biomes in the country. In times of “scientific reductionism”, with botanical and mycological sciences suffering pervasive depreciation in recent decades, the first online Flora of Brazil 2020 significantly enhanced the quality and quantity of taxonomic data available for algae, fungi, and plants from Brazil. This project also made all the information freely available online, providing a firm foundation for future research and for the management, conservation, and sustainable use of the Brazilian funga and flora.
    Type of Medium: Online Resource
    ISSN: 0040-0262 , 1996-8175
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2081189-5
    detail.hit.zdb_id: 204216-2
    SSG: 12
    Location Call Number Limitation Availability
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