33 research outputs found

    AVALIAÇÃO DA APRENDIZAGEM NO CONTEXTO DE ENSINO REMOTO EMERGENCIAL: UM ESTUDO DE REVISÃO BIBLIOGRÁFICA (2020-2021)

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    A avaliação, uma ferramenta que ocupa um espaço importante em todas as etapas do processo de ensino e aprendizagem, adotou novas configurações no período de ensino remoto emergencial, uma vez que também precisou ocorrer remotamente. Logo, esta pesquisa teve como objetivo analisar a produção de conhecimento publicada sobre a avaliação da aprendizagem no ensino fundamental durante o período de pandemia. Propôs-se como metodologia a pesquisa bibliográfica realizada na plataforma Google Acadêmico e posteriormente os dados foram submetidos à técnica da Análise de Conteúdo. Os resultados mostraram que ainda existem poucos trabalhos que abarcam essa temática por ser um assunto contemporâneo. Contudo, mesmo em um período desafiador como o ensino remoto, os estudos revelaram que os processos de avaliação da aprendizagem ocorreram, e muitas vezes, mediados pelo uso de recursos tecnológicos

    COVID-19 pandemic: oral repercussions and its possible impact on oral health

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    Many viral infections cause oral manifestations, including disorders in odontogenesis, resulting in dental malformations. In this review, based on current knowledge, we will discuss the likely dental and oral consequences of COVID-19. In this article, we review currently available data associated with vertical transmission of COVID-19 and odontogenesis, oral manifestations, and the impact of COVID-19 pandemic on a diagnosis of oral diseases. Owing to the severity of the pandemic, the population's anxiety and fear of becoming infected with COVID-19 may underestimate the signs and symptoms of serious illnesses, besides discourage patients from seeking health, medical or dental services to determine the diagnosis of oral lesions. Thus, the COVID-19 pandemic could be an additional and aggravating factor for the delay of serious illness diagnosis, such as oral squamous cell carcinoma resulting in higher morbidity and worse prognosis. Several changes and oral lesions have been described as oral manifestations of COVID-19, such as dysgeusia, oral ulcers, petechiae, reddish macules, desquamative gingivitis, among others. Besides, it can cause major systemic changes and predispose opportunistic infections. As with other viral infections, oral manifestations, including dental anomalies, can occur as a direct result of SARS-CoV-2 infection. However, further studies are needed to guide and clarify possible oral changes20

    Effect of Photobiomodulation Therapy Associated With Biphasic Phosphate Calcium on Bone Repair: A Histomorphometric Study in Rats

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    Background: This study aimed to investigate the effects of photobiomodulation therapy associate with biphasic calcium phosphate on calvaria critical defects in rats. Methods: Forty-eight (90days old) adult male rats (Rattus norvegicus, Albinus variation, Wistar) received critical defects with 5 mm in diameter were made on their skull and were randomly assigned into the groups: C-blood clot, B-biphasic calcium phosphate, L-photobiomodulation therapy and B+L-biphasic calcium phosphate+photobiomodulation therapy. A low-level GaAlAs was applied in a single dose tran-surgically, in a wavelength 660 nm, total dense energy density of 45 J/cm2. At 30 and 60 days, animals from each group were euthanized. Histological and histomorphometric analyzes were performed.  Results: In 30 days, almost all specimens (C, L, B and B+L) showed bone neoformation areas in regions near the borders of the surgical defect. In 60 days, in many specimens (C, L, B, B+L), it was possible to see a narrow neoformed bone structure along almost the whole extension of the surgical defect, though being thinner than the original calvary bone.  Data were recorded as mean ± standard deviation, after normality was tested, suitable statistical test was applied (α= 5%). At 60 days, there was a statistically significant difference when comparing the proportion of neoformation area between group L (0.52%±0.13) and B+L (0.20%±0.08). Group L showed a difference compared with all the groups when comparing the remaining distance between de edges of neoformed bone (C×L, p=0.0431; B×L, p=0.0386; L×B+L, p=0.0352), demonstrating a great defect closure.  Conclusions: Our findings suggest that photobiomodulation therapy applied at 45 J/cm² resulted in the highest percentage of bone neoformation area after 60 days, although biphasic calcium phosphate exerts some osteogenic activity during bone repair, photobiomodulation therapy is not able to modulate this process

    Associação de força de preensão palmar e osteoporose avaliada por densitometria óssea (DXA) em idosos quilombolas: um estudo seccional

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    Objetivo: Verificar a associação de força de preensão palmar e osteoporose em idosos quilombolas. Método: Trata-se de um estudo seccional com 70 participantes (idade 65,58 ± 6.67 anos) de ambos os sexos. A densidade mineral óssea (DMO), massa muscular (MM) e o percentual de gordura foram analisados pela absortometria de raios-x de dupla energia (DXA) e a força de preensão palmar (FPP) por meio do dinamômetro de mão. O ponto de coorte adotado para identificação de osteoporose foi o da Organização Mundial de Saúde (OMS). A identificação do status da sarcopenia foi realizado para caraterização da amostra e para o diagnóstico foi utilizado os critérios propostos pelo European Working Group on Sarcopenia in Older People (EWGSOP). A FPP foi associada positivamente e significativamente com a DMO. Resultados: A osteopenia foi identificada em 42,8% da amostra e a osteoporose em 20%, sem diferença entre as frequências segundo o sexo (p = 0,161). Conclusão: Nos idosos quilombolas a baixa FPP esteve positivamente associada com baixa DMO. Portanto, sugerindo que a FPP pode ser considerada um fator de risco importante de estado ósseo em idosos quilombolas.Objective: The aim of this study was to verify the association between handgrip strength and osteoporosis in elderly quilombolas. Method: It is a sectional study with 70 participants (aged 65.58 ± 6.67 years) of both sexes. Bone mineral density (BMD), muscle mass and fat percentage were analysed by dual-energy X-ray absorptiometry (DXA) and handgrip strength by a hand dynamometer. Subjects were classified as having osteoporosis according to World Health Organization (WHO) cutoff point. The identification of sarcopenia was performed to characterize the sample and the diagnosis was done according to the European Working Group on Sarcopenia in Older People (EWGSOP) criteria. Results: Osteopenia was identified in 42.8% of the sample and osteoporosis in 20%, with no difference between sex (p = 0.161). HGS was positively associated with BMD. Osteopenia was identified in 42.8% of the sample and osteoporosis in 20%, with no difference between the frequencies according to sex (p = 0.161). Conclusion: In the elderly quilombolas low HGS was positively associated with low BMD. Therefore, suggesting that HGS may be considered an important risk factor for bone state in this population

    Autocuidado e prevenção do câncer de mama entre mulheres costureiras

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    Conhecer as percepções sobre o autocuidado e prevenção do câncer de mama entre mulheres costureiras. Estudo descritivo, transversal de abordagem qualitativa, com a participação de 15 mulheres selecionadas por conveniência, no mês de abril de 2021. A análise dos dados utilizou o módulo de processamento de Classificação Hierárquica Descendente (CHD). Destaca-se a importância do enfermeiro na APS com ações de prevenção do câncer de mama, com 14,81% e 22,22% o que oportuniza um maior entendimento do assunto por parte das mulheres. Bem como é sabido pela maior parte das entrevistadas com estimativa de 18,52% e 25,93% que a herança genética pode ser determinante no acometimento dessa patologia. O autocuidado e a prevenção do câncer de mama em mulheres ainda são escassas pelo fato de que existe algumas dificuldades por parte dos profissionais de saúde em fazer o rastreamento principalmente do público costureiras, a prática do autocuidado e o pouco conhecimento com relação a predisposição genética como fator de risco para desenvolvimento do câncer de mama

    Predicting the Proteins of Angomonas deanei, Strigomonas culicis and Their Respective Endosymbionts Reveals New Aspects of the Trypanosomatidae Family

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    Endosymbiont-bearing trypanosomatids have been considered excellent models for the study of cell evolution because the host protozoan co-evolves with an intracellular bacterium in a mutualistic relationship. Such protozoa inhabit a single invertebrate host during their entire life cycle and exhibit special characteristics that group them in a particular phylogenetic cluster of the Trypanosomatidae family, thus classified as monoxenics. in an effort to better understand such symbiotic association, we used DNA pyrosequencing and a reference-guided assembly to generate reads that predicted 16,960 and 12,162 open reading frames (ORFs) in two symbiont-bearing trypanosomatids, Angomonas deanei (previously named as Crithidia deanei) and Strigomonas culicis (first known as Blastocrithidia culicis), respectively. Identification of each ORF was based primarily on TriTrypDB using tblastn, and each ORF was confirmed by employing getorf from EMBOSS and Newbler 2.6 when necessary. the monoxenic organisms revealed conserved housekeeping functions when compared to other trypanosomatids, especially compared with Leishmania major. However, major differences were found in ORFs corresponding to the cytoskeleton, the kinetoplast, and the paraflagellar structure. the monoxenic organisms also contain a large number of genes for cytosolic calpain-like and surface gp63 metalloproteases and a reduced number of compartmentalized cysteine proteases in comparison to other TriTryp organisms, reflecting adaptations to the presence of the symbiont. the assembled bacterial endosymbiont sequences exhibit a high A+T content with a total of 787 and 769 ORFs for the Angomonas deanei and Strigomonas culicis endosymbionts, respectively, and indicate that these organisms hold a common ancestor related to the Alcaligenaceae family. Importantly, both symbionts contain enzymes that complement essential host cell biosynthetic pathways, such as those for amino acid, lipid and purine/pyrimidine metabolism. These findings increase our understanding of the intricate symbiotic relationship between the bacterium and the trypanosomatid host and provide clues to better understand eukaryotic cell evolution.Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)ERC AdG SISYPHEUniv Fed Rio de Janeiro, Inst Biofis Carlos Chagas Filho, Lab Ultraestrutura Celular Hertha Meyer, BR-21941 Rio de Janeiro, BrazilUniv Fed Rio de Janeiro, Inst Biofis Carlos Chagas Filho, Lab Metab Macromol Firmino Torres de Castro, BR-21941 Rio de Janeiro, BrazilLab Bioinformat, Lab Nacl Computacao Cient, Rio de Janeiro, BrazilINRIA Grenoble Rhone Alpes, BAMBOO Team, Villeurbanne, FranceUniv Lyon 1, CNRS, UMR5558, Lab Biometrie & Biol Evolut, F-69622 Villeurbanne, FranceUniv Estadual Campinas, Inst Biol, Dept Genet Evolucao & Bioagentes, São Paulo, BrazilUniv São Paulo, Fac Ciencias Farmaceut Ribeirao Preto, Dept Ciencias Farmaceut, São Paulo, BrazilLab Nacl Ciencia & Tecnol Bioetano, São Paulo, BrazilUniv Fed Minas Gerais, Inst Ciencias Biol, Dept Bioquim & Imunol, Belo Horizonte, MG, BrazilUniv Fed Goias, Inst Ciencias Biol, Mol Biol Lab, Goiania, Go, BrazilFundacao Oswaldo Cruz, Inst Carlos Chagas, Lab Biol Mol Tripanossomatideos, Curitiba, Parana, BrazilFundacao Oswaldo Cruz, Inst Carlos Chagas, Lab Genom Func, Curitiba, Parana, BrazilUniv Estadual Campinas, Ctr Pluridisciplinar Pesquisas Quim Biol & Agr, São Paulo, BrazilUniv Fed Minas Gerais, Inst Ciencias Biol, Dept Parasitol, Belo Horizonte, MG, BrazilUniv Fed Santa Catarina, Dept Microbiol Imunol & Parasitol, Ctr Ciencias Biol, Lab Protozool & Bioinformat, Florianopolis, SC, BrazilUniv Fed Vicosa, Dept Bioquim & Biol Mol, Ctr Ciencias Biol & Saude, Vicosa, MG, BrazilInst Butantan, Lab Especial Ciclo Celular, São Paulo, BrazilUniv São Paulo, Dept Biol, Fac Filosofia Ciencias & Letras Ribeirao Preto, São Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, Dept Microbiol Imunol & Parasitol, São Paulo, BrazilUniversidade Federal de São Paulo, Escola Paulista Med, Dept Microbiol Imunol & Parasitol, São Paulo, BrazilWeb of Scienc

    The James Webb Space Telescope Mission

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    Twenty-six years ago a small committee report, building on earlier studies, expounded a compelling and poetic vision for the future of astronomy, calling for an infrared-optimized space telescope with an aperture of at least 4m4m. With the support of their governments in the US, Europe, and Canada, 20,000 people realized that vision as the 6.5m6.5m James Webb Space Telescope. A generation of astronomers will celebrate their accomplishments for the life of the mission, potentially as long as 20 years, and beyond. This report and the scientific discoveries that follow are extended thank-you notes to the 20,000 team members. The telescope is working perfectly, with much better image quality than expected. In this and accompanying papers, we give a brief history, describe the observatory, outline its objectives and current observing program, and discuss the inventions and people who made it possible. We cite detailed reports on the design and the measured performance on orbit.Comment: Accepted by PASP for the special issue on The James Webb Space Telescope Overview, 29 pages, 4 figure

    HRV Monitoring Using Commercial Wearable Devices as a Health Indicator for Older Persons during the Pandemic

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    Remote monitoring platforms based on advanced health sensors have the potential to become important tools during the COVID-19 pandemic, supporting the reduction in risks for affected populations such as the elderly. Current commercially available wearable devices still have limitations to deal with heart rate variability (HRV), an important health indicator of human aging. This study analyzes the role of a remote monitoring system designed to support health services to older people during the complete course of the COVID-19 pandemic in Brazil, since its beginning in Brazil in March 2020 until November 2021, based on HRV. Using different levels of analysis and data, we validated HRV parameters by comparing them with reference sensors and tools in HRV measurements. We compared the results obtained for the cardiac modulation data in time domain using samples of 10 elderly people’s HRV data from Fitbit Inspire HR with the results provided by Kubios for the same population using a cardiac belt, with the data divided into train and test, where 75% of the data were used for training the models, with the remaining 25% as a test set for evaluating the final performance of the models. The results show that there is very little difference between the results obtained by the remote monitoring system compared with Kubios, indicating that the data obtained from these devices might provide accurate results in evaluating HRV in comparison with gold standard devices. We conclude that the application of the methods and techniques used and reported in this study are useful for the creation and validation of HRV indicators in time series obtained by means of wearable devices based on photoplethysmography sensors; therefore, they can be incorporated into remote monitoring processes as seen during the pandemic

    Análise das variações anatômicas do canal da mandíbula encontradas em radiografias panorâmicas

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    INTRODUÇÃO: No âmbito da clínica odontológica, o bloqueio do nervo alveolar inferior é o mais utilizado; todavia, diversos estudos têm mostrado as mais altas taxas de fracasso, as quais, normalmente, têm como motivo a falha na observação da posição, da forma e da anatomia dos nervos. Essas falhas decorrentes da variação anatômica do nervo alveolar inferior já vêm sendo estudadas na literatura, através de estudos com a análise de radiografias panorâmicas, como proposto neste estudo. OBJETIVO: O objetivo deste estudo foi verificar a ocorrência e a prevalência das variações anatômicas, bem como a correlação das variações do canal da mandíbula com lado e sexo, que podem ocorrer no canal mandibular, por meio de radiografias panorâmicas de pacientes atendidos no Departamento de Odontologia da Universidade Federal de Sergipe (UFS). MATERIAL E MÉTODO: Foram analisadas 1.500 radiografias panorâmicas de pacientes atendidos pelo Departamento de Odontologia da Universidade Federal de Sergipe (UFS). Imagens radiográficas foram observadas sobre um negatoscópio, utilizando-se uma máscara preta ao redor das radiografias, em ambiente com luminosidade apropriada. RESULTADO: Neste estudo, foram observados 5,3% de bifurcações do canal mandibular; 47,5% de canais altos; 16,8% de canais intermediários; 27,1% de canais baixos, e 8,6% de canais com outras variações. CONCLUSÃO: Baseando-se na altura do canal mandibular, houve maior prevalência dos canais altos do que os demais nas mulheres, sendo que não houve diferenças entre os gêneros com relação aos demais tipos e lados afetados. Na classificação dos canais bífidos, não houve diferença estatisticamente significante entre homens e mulheres. Observou-se que a maior prevalência foi para canais sem bifurcação
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