Physical-mechanical properties and heat transfer analysis of osb produced with phenol-formaldehyde and zno nanoparticles addition

Oriented Strand Board is a structural wood composite with applications that require good physical and mechanical performance. The addition of ZnO nanoparticles is an alternative that has been studied in order to improve the properties of Oriented Strand Board panels. However, there is no information about its effect Oriented Strand Board. The aim of this work was to evaluate the influence of the addition of zinc oxide nanoparticles in two different percentages (0,25 % and 0,50 %) on the physical-mechanical properties of Oriented Strand Board panels produced with phenol-formaldehyde resin and on the heat transfer during hot-pressing. Oriented Strand Board panels were produced and tested according to European Standards. The addition of ZnO nanoparticles improved the dimensional stability of the panel, reducing its thickness swelling, and also increased the screw withdraw strength. The heat transfer during hot-pressing increased the temperature more quickly on boards with nanoparticles addition; on the other hand the final temperature of the control treatment was higher

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

Influence of fertilization and water deficit on the density and anatomical characteristics of Eucalyptus grandis wood

The expansion of plantations may be compromised by climate change, altering the frequency and intensity of precipitation. This study aimed to evaluate the influence of potassium and sodium fertilization and water deficit on the apparent density property and anatomical characteristics of Eucalyptus grandis wood. Six treatments varying in fertilization and rainfall incidence were evaluated. Apparent density testing was conducted via X-ray, while the anatomical features of fibers and vessels were examined through image analysis using a polarized light microscope. Cartography was also performed to map the density variation along the trunk in longitudinal and radial directions. Trees without fertilization exhibited higher apparent density, whereas those with partial rain exclusion displayed less homogeneous wood. Overall, treatments involving potassium and sodium showed no significant difference between them and resulted in a thinner secondary wall. The results indicate that water deficit and fertilization methods significantly impact wood properties

Impact of COVID-19 In-hospital Mortality in Chagas Disease Patients

The COVID-19 virus infection caused by the new SARS-CoV-2 was first identified in Rio de Janeiro (RJ), Brazil, in March 2020. Until the end of 2021, 504,399 COVID-19 cases were confirmed in RJ, and the total death toll reached 68,347. The Evandro Chagas National Institute of Infectious Diseases from Oswaldo Cruz Foundation (INI-Fiocruz) is a referral center for treatment and research of several infectious diseases, including COVID-19 and Chagas disease (CD). The present study aimed to evaluate the impact of COVID-19 on in-hospital mortality of patients with CD during the COVID-19 pandemic period. This observational, retrospective, longitudinal study evaluated all patients with CD hospitalized at INI-Fiocruz from May 1, 2020, to November 30, 2021. One hundred ten hospitalizations from 81 patients with CD (58% women; 68 ± 11 years) were evaluated. Death was the study's main outcome, which occurred in 20 cases. The mixed-effects logistic regression was performed with the following variables to test whether patients admitted to the hospital with a COVID-19 diagnosis would be more likely to die than those admitted with other diagnoses: admission diagnosis, sex, age, COVID-19 vaccination status, CD clinical classification, and the number of comorbidities. Results from multiple logistic regression analysis showed a higher risk of in-hospital mortality in patients diagnosed with COVID-19 (OR 6.37; 95% CI 1.78–22.86) compared to other causes of admissions. In conclusion, COVID-19 infection had a significant impact on the mortality risk of INI-Fiocruz CD patients, accounting for one-third of deaths overall. COVID-19 presented the highest percentage of death significantly higher than those admitted due to other causes during the COVID-19 pandemic

AUTOIMAGEM DA MULHER MASTECTOMIZADA: IMPACTOS E REPERCUSSÕES ADVINDOS DO CÂNCER DE MAMA

Introduction: Self-image is defined as the way an individual perceives and feels about their own body. In addition, it is related to the concepts of ‘image’ and ‘body’, whose interpretation goes beyond language and encompasses a broader dimension by taking into account the uniqueness of each being. Objective: To promote reflection on the proposed theme. Methodology: This is a descriptive bibliographic review with a qualitative approach, analyzing scientific literature that refers us to the research object. The bibliographic research is based on already published material with the aim of analyzing different positions on a given subject. Analysis and discussion of results: The Enimar de Paula1; recommended care for mastectomized women are: avoiding sun exposure; not pressing on the side of the operated limb; being careful not to suffer burns, scratches and cuts; not receiving injections, vaccines or blood extraction on the upper limb homolateral to surgery; avoiding cuticle removal; not carrying weight; exercising upper limbs; among others. Conclusion: The nurse also has the duty to follow up on health education activities, which aim to provide information related to necessary care after mastectomy, which assists women in the recovery process.Introdução: A autoimagem é definida como a maneira pela qual um indivíduo se percebe e se sente em relação ao seu próprio corpo. Além disso, está relacionada aos conceitos de ‘imagem’ e ‘corpo’, cuja interpretação vai além da linguagem e abrange uma dimensão mais ampla ao levar em conta a singularidade de cada ser Objetivo: Promover flexão acerca da temática proposta Metodologia: Trata-se de uma revisão bibliográfica de caráter descritivo e abordagem qualitativa, com análise de literaturas científicas que nos remetam ao objeto de pesquisa. A pesquisa bibliográfica é elaborada com base em material já publicado com o objetivo de analisar posições diversas em relação a determinado assunto Análise e discussão dos resultados: A importância de se adotarem as medidas diárias para a diminuição da probabilidade de complicações pós-operatórias. Dentre os cuidados recomendados às mulheres mastectomizadas, estão: evitar a exposição ao sol; não pressionar o lado do membro operado; ter cuidado para não sofrer queimaduras, arranhões e cortes; não receber injeções, vacinas ou extrair sangue no membro superior homolateral à cirurgia; evitar remover cutícula; não carregar peso; exercitar os membros superiores; entre outros Conclusão: O enfermeiro também tem o dever de acompanhar as atividades educativas em saúde, que objetivam fornecer informações relacionadas aos cuidados necessários após a mastectomia, que auxiliam a mulher no processo de recuperação

CIRURGIA BARIÁTRICA: INDICAÇÕES E TÉCNICAS CIRÚRGICAS

Obesity is a complex global health issue that demands an integrated approach. Understanding its epidemiology, risk factors, progression, early diagnosis, and social and economic implications is crucial to addressing this growing challenge. Bariatric surgery in the adult population is a dynamic and intricate field where techniques, indications, contraindications, complications, and historical evolution intricately intertwine. The examined literature reveals a continuous need for personalized and multidisciplinary approaches, considering not only the physical but also the psychological and social aspects of patients undergoing this intervention. Surgical techniques in addressing obesity have specificities that should be carefully evaluated by healthcare professionals. The reviewed literature provides valuable insights to support clinical decisions, highlighting the benefits and specific considerations associated with adjustable gastric banding, vertical gastrectomy, and gastric bypass. The significance of the multidisciplinary team in bariatric surgery lies in the comprehensive approach to the patient, addressing various medical, nutritional, psychological, and social aspects involved. This collaborative approach is essential to ensure successful outcomes, patient satisfaction, and the prevention of short- and long-term complications.A obesidade é um problema de saúde global complexo que exige uma abordagem integrada. A compreensão de sua epidemiologia, fatores de risco, evolução, diagnóstico precoce e implicações sociais e econômicas é crucial para enfrentar esse desafio crescente. a cirurgia bariátrica na população adulta é um campo dinâmico e complexo, onde as técnicas, indicações, contraindicações, complicações e a evolução histórica se entrelaçam de maneira intrincada. A literatura examinada revela a necessidade contínua de abordagens personalizadas e multidisciplinares, considerando não apenas os aspectos físicos, mas também os psicológicos e sociais dos pacientes submetidos a essa intervenção. as técnicas cirúrgicas na abordagem da obesidade apresentam particularidades que devem ser cuidadosamente avaliadas pelos profissionais de saúde. A literatura revisada fornece subsídios valiosos para embasar decisões clínicas, evidenciando os benefícios e as considerações específicas associadas à banda gástrica ajustável, à gastrectomia vertical e ao bypass gástrico. A importância da equipe multidisciplinar na cirurgia bariátrica reside na abordagem integral do paciente, contemplando os diversos aspectos médicos, nutricionais, psicológicos e sociais envolvidos. Essa abordagem colaborativa é essencial para garantir resultados bem-sucedidos, a satisfação do paciente e a prevenção de complicações a curto e longo prazo

Diretriz da Sociedade Brasileira de Cardiologia sobre Diagnóstico e Tratamento de Pacientes com Cardiomiopatia da Doença de Chagas

This guideline aimed to update the concepts and formulate the standards of conduct and scientific evidence that support them, regarding the diagnosis and treatment of the Cardiomyopathy of Chagas disease, with special emphasis on the rationality base that supported it.  Chagas disease in the 21st century maintains an epidemiological pattern of endemicity in 21 Latin American countries. Researchers and managers from endemic and non-endemic countries point to the need to adopt comprehensive public health policies to effectively control the interhuman transmission of T. cruzi infection, and to obtain an optimized level of care for already infected individuals, focusing on diagnostic and therapeutic opportunistic opportunities.   Pathogenic and pathophysiological mechanisms of the Cardiomyopathy of Chagas disease were revisited after in-depth updating and the notion that necrosis and fibrosis are stimulated by tissue parasitic persistence and adverse immune reaction, as fundamental mechanisms, assisted by autonomic and microvascular disorders, was well established. Some of them have recently formed potential targets of therapies.  The natural history of the acute and chronic phases was reviewed, with enhancement for oral transmission, indeterminate form and chronic syndromes. Recent meta-analyses of observational studies have estimated the risk of evolution from acute and indeterminate forms and mortality after chronic cardiomyopathy. Therapeutic approaches applicable to individuals with Indeterminate form of Chagas disease were specifically addressed. All methods to detect structural and/or functional alterations with various cardiac imaging techniques were also reviewed, with recommendations for use in various clinical scenarios. Mortality risk stratification based on the Rassi score, with recent studies of its application, was complemented by methods that detect myocardial fibrosis.  The current methodology for etiological diagnosis and the consequent implications of trypanonomic treatment deserved a comprehensive and in-depth approach. Also the treatment of patients at risk or with heart failure, arrhythmias and thromboembolic events, based on pharmacological and complementary resources, received special attention. Additional chapters supported the conducts applicable to several special contexts, including t. cruzi/HIV co-infection, risk during surgeries, in pregnant women, in the reactivation of infection after heart transplantation, and others.     Finally, two chapters of great social significance, addressing the structuring of specialized services to care for individuals with the Cardiomyopathy of Chagas disease, and reviewing the concepts of severe heart disease and its medical-labor implications completed this guideline.Esta diretriz teve como objetivo principal atualizar os conceitos e formular as normas de conduta e evidências científicas que as suportam, quanto ao diagnóstico e tratamento da CDC, com especial ênfase na base de racionalidade que a embasou. A DC no século XXI mantém padrão epidemiológico de endemicidade em 21 países da América Latina. Investigadores e gestores de países endêmicos e não endêmicos indigitam a necessidade de se adotarem políticas abrangentes, de saúde pública, para controle eficaz da transmissão inter-humanos da infecção pelo T. cruzi, e obter-se nível otimizado de atendimento aos indivíduos já infectados, com foco em oportunização diagnóstica e terapêutica. Mecanismos patogênicos e fisiopatológicos da CDC foram revisitados após atualização aprofundada e ficou bem consolidada a noção de que necrose e fibrose sejam estimuladas pela persistência parasitária tissular e reação imune adversa, como mecanismos fundamentais, coadjuvados por distúrbios autonômicos e microvasculares. Alguns deles recentemente constituíram alvos potenciais de terapêuticas. A história natural das fases aguda e crônica foi revista, com realce para a transmissão oral, a forma indeterminada e as síndromes crônicas. Metanálises recentes de estudos observacionais estimaram o risco de evolução a partir das formas aguda e indeterminada e de mortalidade após instalação da cardiomiopatia crônica. Condutas terapêuticas aplicáveis aos indivíduos com a FIDC foram abordadas especificamente. Todos os métodos para detectar alterações estruturais e/ou funcionais com variadas técnicas de imageamento cardíaco também foram revisados, com recomendações de uso nos vários cenários clínicos. Estratificação de risco de mortalidade fundamentada no escore de Rassi, com estudos recentes de sua aplicação, foi complementada por métodos que detectam fibrose miocárdica. A metodologia atual para diagnóstico etiológico e as consequentes implicações do tratamento tripanossomicida mereceram enfoque abrangente e aprofundado. Também o tratamento de pacientes em risco ou com insuficiência cardíaca, arritmias e eventos tromboembólicos, baseado em recursos farmacológicos e complementares, recebeu especial atenção. Capítulos suplementares subsidiaram as condutas aplicáveis a diversos contextos especiais, entre eles o da co-infecção por T. cruzi/HIV, risco durante cirurgias, em grávidas, na reativação da infecção após transplante cardíacos, e outros.    Por fim, dois capítulos de grande significado social, abordando a estruturação de serviços especializados para atendimento aos indivíduos com a CDC, e revisando os conceitos de cardiopatia grave e suas implicações médico-trabalhistas completaram esta diretriz.&nbsp

ATLANTIC EPIPHYTES: a data set of vascular and non-vascular epiphyte plants and lichens from the Atlantic Forest

Epiphytes are hyper-diverse and one of the frequently undervalued life forms in plant surveys and biodiversity inventories. Epiphytes of the Atlantic Forest, one of the most endangered ecosystems in the world, have high endemism and radiated recently in the Pliocene. We aimed to (1) compile an extensive Atlantic Forest data set on vascular, non-vascular plants (including hemiepiphytes), and lichen epiphyte species occurrence and abundance; (2) describe the epiphyte distribution in the Atlantic Forest, in order to indicate future sampling efforts. Our work presents the first epiphyte data set with information on abundance and occurrence of epiphyte phorophyte species. All data compiled here come from three main sources provided by the authors: published sources (comprising peer-reviewed articles, books, and theses), unpublished data, and herbarium data. We compiled a data set composed of 2,095 species, from 89,270 holo/hemiepiphyte records, in the Atlantic Forest of Brazil, Argentina, Paraguay, and Uruguay, recorded from 1824 to early 2018. Most of the records were from qualitative data (occurrence only, 88%), well distributed throughout the Atlantic Forest. For quantitative records, the most common sampling method was individual trees (71%), followed by plot sampling (19%), and transect sampling (10%). Angiosperms (81%) were the most frequently registered group, and Bromeliaceae and Orchidaceae were the families with the greatest number of records (27,272 and 21,945, respectively). Ferns and Lycophytes presented fewer records than Angiosperms, and Polypodiaceae were the most recorded family, and more concentrated in the Southern and Southeastern regions. Data on non-vascular plants and lichens were scarce, with a few disjunct records concentrated in the Northeastern region of the Atlantic Forest. For all non-vascular plant records, Lejeuneaceae, a family of liverworts, was the most recorded family. We hope that our effort to organize scattered epiphyte data help advance the knowledge of epiphyte ecology, as well as our understanding of macroecological and biogeographical patterns in the Atlantic Forest. No copyright restrictions are associated with the data set. Please cite this Ecology Data Paper if the data are used in publication and teaching events. © 2019 The Authors. Ecology © 2019 The Ecological Society of Americ