Cross laminated timber bonding quality for different brazilian species and pressing levels

The proper choice of raw materials and manufacturing parameters for Cross Laminated Timber is essential to promote the proper bonding of the lamellas, aiming at their application in construction. However, few Brazilian species are currently used in the production of Cross Laminated Timber. The aim of this work was to characterize the bonding quality of four Brazilian reforestation species (Pinus elliottii, Eucalyptus grandis, Toona ciliata and Acrocarpus fraxinifolius) in the manufacture of Cross Laminated Timber with two-component polyurethane adhesive and five different pressure levels (from 0,1 MPa to 1,3 MPa). Bonding quality was evaluated through delamination and glue line shear tests based on the standard EN 14080 (2013). Delamination was affected by the wood species, and the best adhesion occurred for the Cross Laminated Timber manufactured with Pinus elliottii and Acrocarpus fraxinifolius at the bonding pressure of 0,7 MPa. Cross Laminated Timber bonding pressure did not affect the percentage of wood in the shear test fractured surface, whereas higher density Cross Laminated Timber showed higher percentages

In situ effect of CPP-ACP chewing gum upon erosive enamel loss

Casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) is able to increase salivary calcium and phosphate levels at an acidic pH. Previous studies demonstrated that a CPP-ACP chewing gum was able to enhance the re-hardening of erosion lesions, but could not diminish enamel hardness loss. Therefore, there is no consensus regarding the effectiveness of CPP-ACP on dental erosion. Objective This in situ study investigated the ability of a CPP-ACP chewing gum in preventing erosive enamel loss. Material and Methods: During three experimental crossover phases (one phase per group) of seven days each, eight volunteers wore palatal devices with human enamel blocks. The groups were: GI – Sugar free chewing gum with CPP-ACP; GII – Conventional sugar free chewing gum; and GIII – No chewing gum (control). Erosive challenge was extraorally performed by immersion of the enamel blocks in cola drink (5 min, 4x/day). After each challenge, in groups CPP and No CPP, volunteers chewed one unit of the corresponding chewing gum for 30 minutes. Quantitative analysis of enamel loss was performed by profilometry (µm). Data were analyzed by Repeated-Measures ANOVA and Tukey’s test (

Mortality reduction with use of oral beta-blockers in patients with acute coronary syndrome

OBJECTIVES: Recent studies have revealed a relationship between beta-blocker use and worse prognosis in acute coronary syndrome, mainly due to a higher incidence of cardiogenic shock. However, the relevance of this relationship in the reperfusion era is unknown. The aim of this study was to analyze the outcomes of patients with acute coronary syndrome that started oral beta-blockers within the first 24 hours of hospital admission (group I) compared to patients who did not use oral beta-blockers in this timeframe (group II). METHODS: This was an observational, retrospective and multicentric study with 2,553 patients (2,212 in group I and 341 in group II). Data regarding demographic characteristics, coronary treatment and medication use in the hospital were obtained. The primary endpoint was in-hospital all-cause mortality. The groups were compared by ANOVA and the chi-square test. Multivariate analysis was conducted by logistic regression and results were considered significant when

Concepção dos desafios médicos no diagnóstico de abdome agudo em gestantes: um artigo original

The objective of this study is to expose the main concepts regarding the acute abomen and show its main etiologies in pregnant women. A review of articles was performed in the databases Medical Literature Analysis and Retrieval System Online (MEDLINE), Scientific Electronic Library Online (SciELO), Latin American and Caribbean Literature in Health Sciences (LILACS), Directory of Open Access Journals (DOAJ) and PubMed, with the following Health Sciences Descriptors (DeCS): Acute abdomen; Abdominal pain; Diffuse pain; Pregnancy. Selecting articles between the periods 2005 to 2023, in English, Portuguese, German and Spanish. Regarding AA, even though it is a pathology considered to be infrequently recurrent during pregnancy, it is essential that health professionals are prepared to diagnose it accurately and quickly, given the potential risks for pregnancy when the diagnosis is late. It is concluded that the lack of a standard protocol for approaching these patients impairs medical decision-making and contributes to worse prognoses.O objetivo deste estudo é expor os principais conceitos a respeito do abômen agudo e mostrar suas principais etiologias em gestantes. Foi realizada revisão de artigos nas bases de dados Medical Literature Analysis and Retrieval System Online (MEDLINE), Scientific Electronic Library Online (SciELO), Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), Directory of Open Access Journals (DOAJ) e PubMed, com os seguintes Descritores em Ciências da Saúde (DeCS): Abdome agudo; Dor abdominal; Dor difusa; Gravidez. Seleção de artigos entre os períodos de 2005 a 2023, nos idiomas inglês, português, alemão e espanhol. Em relação à AA, mesmo sendo uma patologia considerada pouco recorrente durante a gravidez, é fundamental que os profissionais de saúde estejam preparados para diagnosticá-la com precisão e rapidez, dados os riscos potenciais para a gravidez quando o diagnóstico é tardio. Conclui-se que a falta de um protocolo padrão para abordagem desses pacientes prejudica a tomada de decisão médica e contribui para piores prognósticos.Objetiva-se, neste estudo, expor os principais conceitos no que tange o abomen agudo e mostrar suas etiologias principais em gestantes. Foi realizada uma revisão de artigos nas bases de dados Medical Literature Analysis and Retrievel System Online (MEDLINE), Scientific Electronic Library Online (SciELO), Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), Directory of Open Access Journals (DOAJ) e PubMed, com os seguintes Descritores em Ciências da Saúde (DeCS): Abdome agudo; Dor abdominal; Dor difusa; Gravidez. Selecionando artigos entre os períodos de 2005 a 2023, nos idiomas Inglês, Português, Alemão e Espanhol. Em relação ao AA, mesmo sendo uma patologia considerada pouco recorrente durante a gestação, é essencial que os profissionais da saúde estejam preparados para diagnosticá-la com precisão e rapidez, visto o potencial de riscos para a gestação quando o diagnóstico é tardio. Conclui-se que a falta de um protocolo padrão na abordagem desses pacientes, prejudica a tomada de decisões médicas e corrobora para piores prognósticos

Main Electroclinic Syndromes of The Infant: A Literature Review

An electroclinic syndrome (also known as epileptic syndrome) consists of a set of characteristics that associate with seizures, characteristics of electroencephalography and imaging that tend to occur together. Among them is a group that affects infants, usually having a genetic etiology. Objective: to carry out a literature review on the most common types of infant electroclinical syndromes, describing their main characteristics. Methodology: This is a narrative review of the literature of articles published between 2005 and 2020, in Portuguese and English. The research was carried out in December 2020. The following descriptors were used to search for the articles: Electroclinical syndromes. Epilepsy. Infant. Results: Through the research carried out, 12 scientific articles were selected, nine of them in English and three in Portuguese. Conclusion: The study identified 7 common electroclinical syndromes in infants and made it possible to conclude that knowledge of the clinical profile, types of crises and characteristics of the electroencephalography of the disease phenotype associated with the specific mutation can help improve the accuracy and management of the diagnosis of electroclinical syndromes

Questão agrária e políticas públicas em Minas Gerais : conflitos sociais e alternativas populares

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Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Anais do V Encontro Brasileiro de Educomunicação: Educação midiática e políticas públicas

A presente coletânea, que chega ao público através de um suporte digital, tem como objetivo disponibilizar os papers, bem como os relatos de experiências educomunicativas apresentados durante o V ENCONTRO BRASILEIRO DE EDUCOMUNICAÇÃO, que teve como tema central: “Educação Midiática e Políticas Públicas”. O evento foi realizado em São Paulo, entre 19 e 21 de setembro de 2013, a partir de uma parceria entre o NCE/USP - Núcleo de Comunicação e Educação da USP, a Licenciatura em Educomunicação da ECA/USP, a ABPEducom – Associação Brasileira de Pesquisadores e Profissionais da Educomunicação e a FAPCOM – Faculdade Paulus de Tecnologia e Comunicação, que ofereceu seu campus, na Vila Mariana, para os atos do evento. Os presentes anais disponibilizam o texto de abertura, de autoria do coordenador geral do evento, denominado “Educação midiática e políticas públicas: vertentes históricas da emergência da Educomunicação na América Latina”. Na sequência, apresentam 61 papers sobre aspectos específicos da temática geral, resultantes de pesquisas na área, seguidos de 27 relatos de práticas educomunicativas, em nível nacional