Influência da umidade dentinária na resistência de união de cimentos endodônticos à dentina radicular

TCC (graduação) - Universidade Federal de Santa Catarina. Centro de Ciências da Saúde. Odontologia.O objetivo deste estudo foi analisar a influência de diferentes protocolos de secagem do canal na resistência de união de dois cimentos obturadores, um à base de resina epóxica e outro à base de biocerâmico. Foram utilizados 48 dentes de humanos com canal único e reto. Após a remoção das coroas e acesso aos canais, o preparo endodôntico foi realizado pela técnica coroa ápice com o sistema mecanizado Reciproc, padronizando o preparo com a lima R40. Os canais foram irrigados com 2 mL de NaOCl 1% entre cada lima ou broca e ao final com 3 mL de NaOCl 2,5 %. Na sequência, as raízes foram divididas em três grupos (n = 16) de acordo com o protocolo pré-estabelecido para secagem do canal. Grupo 1- cones de papel absorvente; Grupo 2: irrigação com álcool etílico 95% e secagem com cones de papel absorvente; Grupo 3: irrigação com álcool etílico 70% e aspiração com pontas Navitips. Cada grupo foi dividido em dois subgrupos (n=8) de acordo com o cimento obturador utilizado; AH Plus ou biocerâmico MKLife. Após 07 dias da obturação, as raízes foram seccionadas em fatias transversais com 1 mm de espessura. Os espécimes foram submetidos ao teste de push-out (Instron 4444) com velocidade de cruzeta de 0,5 mm/min. A resistência de união foi calculada (MPa) e os dados foram analisados pelos testes de Kruskal-Wallis e pelo teste post-hoc de Bonferroni (α = 5%). Nos espécimes obturados com AH Plus não foram observadas diferenças estatísticas significativas entre os protocolos de secagem (G1, G2 e G3), independente do terço analisado (p > 0,05).Porém, para o biocerâmico MKLife não foram observadas diferenças significativas entre os protocolos de secagem, mas houve diferença estatística entre os terços no G2 (p=0,019) e G3 (p=0,031). Na comparação entre os cimentos AH Plus e MKLife não foi observada diferença estatística,independente do protocolo de secagem avaliado: G1 (p=0, 296), G2 (p=0,315) e G3 (p=0,090). Concluiu-se que os diferentes protocolos de secagem do canal não influenciaram na resistência de união dos cimentos endodônticos AH Plus e MKLife às paredes do canal radicular, que tiveram resultados semelhantes quanto à resistência de união.The objective of this study was to analyze the influence of different root canal drying protocols on the bond strength of two sealers, one based on epoxy resin and another based on bioceramic. Forty-eight human teeth with single and straight root canals were used. After the removal of the crowns, the endodontic preparation was done by the apex crown technique with the Reciproc with the file R40. The root canals were irrigated with 2 mL of 1% NaOCl between each file or bur and at the end with 3 mL of 2,5% NaOCl. The roots were then divided into three groups (n = 16) according to the established drying protocol. Group 1- drying with absorbent paper cones; Group 2: irrigation with 95% ethanol and drying with absorbent paper cones; Group 3: irrigation with 70% ethyl alcohol and aspiration with Navitips tips. Each group was divided into two subgroups (n = 8) according to the obturator sealer used; AH Plus or MKLifebioceramic. After 07 days of obturation, the roots were sectioned into 1 mm thick-slices. The specimens were submitted to the push-out test (Instron 4444), with a cross head speed of 0.5 mm/min. The bond strength was calculated (MPa) anddata wereanalyzed byKruskal-Wallis test and Bonferroni post-hoc test (α = 5%).In the specimens obturated with AH Plus, no significant statistical differences were observed between drying protocols (G1, G2 and G3), independent of the analyzed region (p> 0.05). However, for the bioceramic MKLife, no significant differences were observed between the drying protocols, but there was statistical difference between the root regions in G2 (p = 0.019) and G3 (p = 0.031). It was concluded that the different drying protocols of the canal did not influence the bond strength of the AH Plus and MKLife endodontic cements to the root canal walls, which had similar results regarding bond strength

Sazonalidade e tentativas de suicídio: comparativo entre a Paraíba, região nordeste e Brasil / Seasonality and suicide attempts: comparison between Paraiba, northeast region and Brazil

 A temática do suicídio ainda é abordada na sociedade como tabu e de forma estigmatizada.  No Brasil os estudos acerca dos fatores que podem influenciar a prática do suicídio ainda são pouco explorados, logo, esse estudo se debruça sobre essa lacuna. Objetivou-se investigar se o componente de sazonalidade tem influência no comportamento das tentativas de suicídios na Paraíba em relação ao nordeste e ao Brasil. Tratou-se de um estudo ecológico, descritivo, operacionalizado com dados secundários do SINAN, referentes ao período 2013 a 2017, no Brasil, Nordeste e Paraíba. Como resultados mais relevantes constatou-se que, no cenário local, o estado da Paraíba computou um número absoluto de 1759 mortes por suicídio ao longo dos últimos cinco anos, com uma taxa média anual de aproximadamente 351,8 mortes por ano. Em adição, observou-se que o número de mortes causadas por autoeliminação voluntária vem aumentando a cada ano. Sendo verificadas as maiores taxas proporcionais de aumento entre os períodos de 2014 para 2015, com um aumento de aproximadamente 243%. Da mesma forma, constatou-se que o maior número de mortes por suicídio concentrou-se entre os meses de março e junho nos anos de 2013 e 2014.  Os resultados encontrados no presente estudo mostram uma transição da sazonalidade com relação à morte por suicídios no Brasil. Até o momento, muitos fatores de risco para suicídio foram relatados e podem ser categorizados por características demográficas, sociais e clínicas. Outro fenômeno que pode justificar essa transição sazonal encontrada no presente estudo é a influência da mídia tradicional e da nova mídia no comportamento e contágio suicida. 

SARS-CoV-2 introductions and early dynamics of the epidemic in Portugal

Genomic surveillance of SARS-CoV-2 in Portugal was rapidly implemented by the National Institute of Health in the early stages of the COVID-19 epidemic, in collaboration with more than 50 laboratories distributed nationwide. Methods By applying recent phylodynamic models that allow integration of individual-based travel history, we reconstructed and characterized the spatio-temporal dynamics of SARSCoV-2 introductions and early dissemination in Portugal. Results We detected at least 277 independent SARS-CoV-2 introductions, mostly from European countries (namely the United Kingdom, Spain, France, Italy, and Switzerland), which were consistent with the countries with the highest connectivity with Portugal. Although most introductions were estimated to have occurred during early March 2020, it is likely that SARS-CoV-2 was silently circulating in Portugal throughout February, before the first cases were confirmed. Conclusions Here we conclude that the earlier implementation of measures could have minimized the number of introductions and subsequent virus expansion in Portugal. This study lays the foundation for genomic epidemiology of SARS-CoV-2 in Portugal, and highlights the need for systematic and geographically-representative genomic surveillance.We gratefully acknowledge to Sara Hill and Nuno Faria (University of Oxford) and Joshua Quick and Nick Loman (University of Birmingham) for kindly providing us with the initial sets of Artic Network primers for NGS; Rafael Mamede (MRamirez team, IMM, Lisbon) for developing and sharing a bioinformatics script for sequence curation (https://github.com/rfm-targa/BioinfUtils); Philippe Lemey (KU Leuven) for providing guidance on the implementation of the phylodynamic models; Joshua L. Cherry (National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health) for providing guidance with the subsampling strategies; and all authors, originating and submitting laboratories who have contributed genome data on GISAID (https://www.gisaid.org/) on which part of this research is based. The opinions expressed in this article are those of the authors and do not reflect the view of the National Institutes of Health, the Department of Health and Human Services, or the United States government. This study is co-funded by Fundação para a Ciência e Tecnologia and Agência de Investigação Clínica e Inovação Biomédica (234_596874175) on behalf of the Research 4 COVID-19 call. Some infrastructural resources used in this study come from the GenomePT project (POCI-01-0145-FEDER-022184), supported by COMPETE 2020 - Operational Programme for Competitiveness and Internationalisation (POCI), Lisboa Portugal Regional Operational Programme (Lisboa2020), Algarve Portugal Regional Operational Programme (CRESC Algarve2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF), and by Fundação para a Ciência e a Tecnologia (FCT).info:eu-repo/semantics/publishedVersio

A moda no MASP de Pietro Maria Bardi (1947-1987)

O objetivo deste artigo é evidenciar a centralidade das ações ligadas à moda e à formação da Seção de Costumes do MASP no projeto de museu e na concepção de arte de Pietro Maria Bardi no período 1947-1987, e como tais ações teriam sido relevantes para a instituição de uma visualidade e uma história para a moda nacional. Demonstra-se como a trajetória de P. M. Bardi na Itália, ou seja, sua atuação como galerista e comerciante de artes, jornalista, bem como seu contato com a ideologia e as ações do Regime Fascista no campo das artes e da moda, influenciou diretamente suas ações em relação ao design de moda. Essas ideias e experiências foram fundamentais para direcionar sua atuação no MASP e, em especial suas iniciativas na área do design. Nota-se ainda como a atuação de Bardi no campo do design de moda foi também influenciada pelas ideias propagadas pela Bauhaus e Le Corbusier, assim como por seu olhar estrangeiro, que acaba por levá-lo a recuperar, nas referentes iniciativas, as tradições e a cultura brasileiras, gerando uma produção que dialoga com o modernismo brasileiro, uma vez que usa a experiência internacional para valorizar o nacional

Educomunicação, Transformação Social e Desenvolvimento Sustentável

Esta publicação apresenta os principais trabalhos dos GTs do II Congresso Internacional de Comunicação e Educação nos temas Transformação social, com os artigos que abordam principalmente Educomunicação e/ou Mídia-Educação, no contexto de políticas de diversidade, inclusão e equidade; e, em Desenvolvimento Sustentável os artigos que abordam os avanços da relação comunicação/educação no contexto da educação ambiental e desenvolvimento sustentável

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Differential cross section measurements for the production of a W boson in association with jets in proton–proton collisions at √s = 7 TeV

Measurements are reported of differential cross sections for the production of a W boson, which decays into a muon and a neutrino, in association with jets, as a function of several variables, including the transverse momenta (pT) and pseudorapidities of the four leading jets, the scalar sum of jet transverse momenta (HT), and the difference in azimuthal angle between the directions of each jet and the muon. The data sample of pp collisions at a centre-of-mass energy of 7 TeV was collected with the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb[superscript −1]. The measured cross sections are compared to predictions from Monte Carlo generators, MadGraph + pythia and sherpa, and to next-to-leading-order calculations from BlackHat + sherpa. The differential cross sections are found to be in agreement with the predictions, apart from the pT distributions of the leading jets at high pT values, the distributions of the HT at high-HT and low jet multiplicity, and the distribution of the difference in azimuthal angle between the leading jet and the muon at low values.United States. Dept. of EnergyNational Science Foundation (U.S.)Alfred P. Sloan Foundatio

Penilaian Kinerja Keuangan Koperasi di Kabupaten Pelalawan

This paper describe development and financial performance of cooperative in District Pelalawan among 2007 - 2008. Studies on primary and secondary cooperative in 12 sub-districts. Method in this stady use performance measuring of productivity, efficiency, growth, liquidity, and solvability of cooperative. Productivity of cooperative in Pelalawan was highly but efficiency still low. Profit and income were highly, even liquidity of cooperative very high, and solvability was good

Search for stop and higgsino production using diphoton Higgs boson decays

Results are presented of a search for a "natural" supersymmetry scenario with gauge mediated symmetry breaking. It is assumed that only the supersymmetric partners of the top-quark (stop) and the Higgs boson (higgsino) are accessible. Events are examined in which there are two photons forming a Higgs boson candidate, and at least two b-quark jets. In 19.7 inverse femtobarns of proton-proton collision data at sqrt(s) = 8 TeV, recorded in the CMS experiment, no evidence of a signal is found and lower limits at the 95% confidence level are set, excluding the stop mass below 360 to 410 GeV, depending on the higgsino mass

Juxtaposing BTE and ATE – on the role of the European insurance industry in funding civil litigation

One of the ways in which legal services are financed, and indeed shaped, is through private insurance arrangement. Two contrasting types of legal expenses insurance contracts (LEI) seem to dominate in Europe: before the event (BTE) and after the event (ATE) legal expenses insurance. Notwithstanding institutional differences between different legal systems, BTE and ATE insurance arrangements may be instrumental if government policy is geared towards strengthening a market-oriented system of financing access to justice for individuals and business. At the same time, emphasizing the role of a private industry as a keeper of the gates to justice raises issues of accountability and transparency, not readily reconcilable with demands of competition. Moreover, multiple actors (clients, lawyers, courts, insurers) are involved, causing behavioural dynamics which are not easily predicted or influenced. Against this background, this paper looks into BTE and ATE arrangements by analysing the particularities of BTE and ATE arrangements currently available in some European jurisdictions and by painting a picture of their respective markets and legal contexts. This allows for some reflection on the performance of BTE and ATE providers as both financiers and keepers. Two issues emerge from the analysis that are worthy of some further reflection. Firstly, there is the problematic long-term sustainability of some ATE products. Secondly, the challenges faced by policymakers that would like to nudge consumers into voluntarily taking out BTE LEI