17 research outputs found

    Avaliação fatores chave implementação lean office

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    O lean office adapta os conceitos e ferramentas do lean para as atividades e processos administrativos. A finalidade é a redução de custos, eliminar esforços desnecessários, aumentar a capacidade de resposta ao cliente e melhorar a rentabilidade global da empresa. O objetivo deste trabalho é avaliar cinco fatores chaves de sucesso para implementação do lean office, comparando as áreas fabril e não fabril em organizações que possuam lean implementado em algum nível. Para tanto, foi desenvolvido um survey, que foi postado no site LinkedIn, para profissionais das áreas de Melhoria Contínua e Lean. Foram obtidos 172 respostas válidas de diversos países. Os dados coletados mostram a importância dos cinco fatores para o sucesso do lean e as diferenças entre as áreas fabris e não fabris

    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

    Systemic infection by Spencermartinsiella sp. in a Nile crocodile (Crocodylus niloticus)

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    A male adult crocodile (Crocodylus niloticus) was diagnosed with systemic yeast infection. Histologically, there were extensive areas of necrosis in the lung, which were associated with a diffuse severe lympho-plasmo-histiocytic inflammatory infiltrate, with numerous multinucleated giant cells, and myriads of intralesional pseudo-hyphae and yeast like organisms within distended foveolae. Necrotic foci were also observed in the mucosa of the digestive tract, trachea, tunica intima of arteries, liver, and heart, with a marked inflammatory lympho-histiocytic infiltrate, with large numbers of epithelioid macrophages and giant cells, and intralesional and intravascular pseudo-hyphae and yeast-like organisms. Oval yeast structures with 4 to 6 μm in diameter and 5 to 8 μm thick paralleled-wall pseudo-hyphae were observed in PAS or GMS stained sections. PCR with DNA template extracted from paraffin embedded tissues amplified the D1/D2 domains of the large subunit rRNA gene, which was sequenced and found to be identical to sequences of a new species, isolated from rotting wood in Brazil, of the genus Spencermartinsiella, which its closest relative is Spencermartinsiella cellulosicola. Um crocodilo macho adulto (Crocodylus niloticus) foi diagnosticado com infecção fúngica sustêmica. Histologicamente, havia extensas áreas de necrose no pulmão, que estavam associadas com infiltrado inflamatório linfo-plasmo-histiocitário, com numerosas células gigantes multinucleadas e miríade de pseudo-hifas e organismos leveduriformes intralesionais, dentro de favéolas distendidas. Focos necróticos também foram observados na mucosa do trato digestório, traquéia, túnica íntima de artérias, fígado e coração, com acentuado infiltrado inflamatório linfo-histiocitário, com grande número de macrófagos epitelioides e células gigantes e hifas e organismos leveduriformes intralesionais e intravasculares. Cortes corados por PAS e GMS evidenciaram estruturas leveduriformes ovais com 4 a 6 μm de diâmetro e pseudo-hifas de paredes espessas e paralelas com 5 a 8 μm. PCR realizado com DNA extraído de material parafinizado amplificou os domínios D1/D2 da subunidade maior do gene rRNA, cuja sequencia foi idêntica a sequências de uma nova espécie, isolada no Brasil de madeira em decomposição, do gênero Spencermartinsiella, cuja espécie mais próxima é Spencermartinsiella cellulosicola

    PROJETO ESCUTA SOLIDÁRIA: UNIVERSIDADES NO APOIO ÀS PESSOAS IDOSAS NO CONTEXTO DA COVID-19

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    O relato refere-se a uma ação extensionista de escuta solidária a pessoas idosas durante a pandemia da COVID-19.  Os idosos são acompanhados por ligações telefônicas, mensagens e ligações pelo Whatsapp, por estudantes universitários, nos municípios de Viçosa (MG), Palmas (TO) e Campinas (SP). A escuta e o acolhimento à pessoa idosa contribuem sobremaneira para fortalecer a autoconfiança, a percepção da transitoriedade do momento, o compartilhamento de enfrentamentos e construção positiva e otimista de que dias melhores virão. The report refers to a solidarity extension action for the older adults during a COVID-19 pandemic. The older adults are accompanied by telephone contacts, messages and contacts via WhatsApp, by university students, in the cities of Viçosa (MG), Palmas (TO) and Campinas (SP). Listening to and welcoming the older adults contributes greatly to strengthening self-confidence, the perception of the transience of the moment, the sharing of confrontations and the positive and optimistic construction of better days. El informe se refiere a una acción de extensión solidaria para los ancianos durante una pandemia de COVID-19. Los ancianos están acompañados por contactos telefónicos, mensajes y contactos a través de WhatsApp, por estudiantes universitarios, en los municipios de Viçosa (MG), Palmas (TO) y Campinas (SP). Escuchar y dar la bienvenida a los ancianos contribuye en gran medida a fortalecer la autoconfianza, la percepción de la fugacidad del momento, el intercambio de confrontaciones y la construcción positiva y optimista de días mejores

    COVID-19 in Brazilian children and adolescents: findings from 21 hospitals / COVID-19 em crianças e adolescentes brasileiros: registros de 21 hospitais

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    Introdução: Crianças e adolescentes com Covid-19 apresentam menor mortalidade e sintomas menos intensos quando comparados aos adultos. Os estudos no Brasil baseiam-se apenas no sistema de notificação compulsória. Objetivo: Analisar as características clínicas, laboratoriais, radiológicas e desfechos de pacientes hospitalizados com menos de 20 anos de idade com Covid-19. Métodos: Série de casos de pacientes internados com Covid-19, confirmado, com idade inferior a 20 anos, obtida em estudo de coorte em 21 hospitais de cinco estados brasileiros. Resultados: Dos 36 pacientes, 20 (55,5%) eram adolescentes, 20 (55,5%) eram do sexo masculino, 18 (50,0%) apresentavam comorbidades, 2 estavam grávidas; e em 7 (19,4%) os sintomas iniciais ocorreram durante a internação por outras causas, dos quais 3 foram possivelmente infectados no hospital. Febre (61,1%), dispneia (33,3%) e sintomas neurológicos (33,0%) foram as queixas mais comuns. A proteína C reativa estava acima de 50mg / L em 16,7% e o dímero-D estava acima do limite de referência em 22,2%. Radiografias de tórax foram realizadas em 20 (55,5%) pacientes, 9 apresentavam anormalidades; e tomografias computadorizadas de tórax em 5. O tempo de internação variou de 1-40 dias (mediana 5 [intervalo interquartil 3-10]), 16 (44,4%) necessitaram de cuidados intensivos, 6 (16,7%) necessitaram de ventilação mecânica e um paciente (2,8%) faleceu. Conclusão: Em uma amostra de pacientes menores de 20 anos, procedentes de hospitais de 5 estados do Brasil, as comorbidades foram frequentes e os sintomas mais comuns foram febre, dispneia e sintomas neurológicos. Quarenta e quatro por cento dos pacientes necessitaram de cuidados intensivos, mostrando que na amostra avaliada a doença não era tão leve quanto o esperado, e um paciente morreu. 

    Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK.

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    BACKGROUND: A safe and efficacious vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), if deployed with high coverage, could contribute to the control of the COVID-19 pandemic. We evaluated the safety and efficacy of the ChAdOx1 nCoV-19 vaccine in a pooled interim analysis of four trials. METHODS: This analysis includes data from four ongoing blinded, randomised, controlled trials done across the UK, Brazil, and South Africa. Participants aged 18 years and older were randomly assigned (1:1) to ChAdOx1 nCoV-19 vaccine or control (meningococcal group A, C, W, and Y conjugate vaccine or saline). Participants in the ChAdOx1 nCoV-19 group received two doses containing 5 × 1010 viral particles (standard dose; SD/SD cohort); a subset in the UK trial received a half dose as their first dose (low dose) and a standard dose as their second dose (LD/SD cohort). The primary efficacy analysis included symptomatic COVID-19 in seronegative participants with a nucleic acid amplification test-positive swab more than 14 days after a second dose of vaccine. Participants were analysed according to treatment received, with data cutoff on Nov 4, 2020. Vaccine efficacy was calculated as 1 - relative risk derived from a robust Poisson regression model adjusted for age. Studies are registered at ISRCTN89951424 and ClinicalTrials.gov, NCT04324606, NCT04400838, and NCT04444674. FINDINGS: Between April 23 and Nov 4, 2020, 23 848 participants were enrolled and 11 636 participants (7548 in the UK, 4088 in Brazil) were included in the interim primary efficacy analysis. In participants who received two standard doses, vaccine efficacy was 62·1% (95% CI 41·0-75·7; 27 [0·6%] of 4440 in the ChAdOx1 nCoV-19 group vs71 [1·6%] of 4455 in the control group) and in participants who received a low dose followed by a standard dose, efficacy was 90·0% (67·4-97·0; three [0·2%] of 1367 vs 30 [2·2%] of 1374; pinteraction=0·010). Overall vaccine efficacy across both groups was 70·4% (95·8% CI 54·8-80·6; 30 [0·5%] of 5807 vs 101 [1·7%] of 5829). From 21 days after the first dose, there were ten cases hospitalised for COVID-19, all in the control arm; two were classified as severe COVID-19, including one death. There were 74 341 person-months of safety follow-up (median 3·4 months, IQR 1·3-4·8): 175 severe adverse events occurred in 168 participants, 84 events in the ChAdOx1 nCoV-19 group and 91 in the control group. Three events were classified as possibly related to a vaccine: one in the ChAdOx1 nCoV-19 group, one in the control group, and one in a participant who remains masked to group allocation. INTERPRETATION: ChAdOx1 nCoV-19 has an acceptable safety profile and has been found to be efficacious against symptomatic COVID-19 in this interim analysis of ongoing clinical trials. FUNDING: UK Research and Innovation, National Institutes for Health Research (NIHR), Coalition for Epidemic Preparedness Innovations, Bill & Melinda Gates Foundation, Lemann Foundation, Rede D'Or, Brava and Telles Foundation, NIHR Oxford Biomedical Research Centre, Thames Valley and South Midland's NIHR Clinical Research Network, and AstraZeneca

    Safety and efficacy of the ChAdOx1 nCoV-19 vaccine (AZD1222) against SARS-CoV-2: an interim analysis of four randomised controlled trials in Brazil, South Africa, and the UK

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    Background A safe and efficacious vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), if deployed with high coverage, could contribute to the control of the COVID-19 pandemic. We evaluated the safety and efficacy of the ChAdOx1 nCoV-19 vaccine in a pooled interim analysis of four trials. Methods This analysis includes data from four ongoing blinded, randomised, controlled trials done across the UK, Brazil, and South Africa. Participants aged 18 years and older were randomly assigned (1:1) to ChAdOx1 nCoV-19 vaccine or control (meningococcal group A, C, W, and Y conjugate vaccine or saline). Participants in the ChAdOx1 nCoV-19 group received two doses containing 5 × 1010 viral particles (standard dose; SD/SD cohort); a subset in the UK trial received a half dose as their first dose (low dose) and a standard dose as their second dose (LD/SD cohort). The primary efficacy analysis included symptomatic COVID-19 in seronegative participants with a nucleic acid amplification test-positive swab more than 14 days after a second dose of vaccine. Participants were analysed according to treatment received, with data cutoff on Nov 4, 2020. Vaccine efficacy was calculated as 1 - relative risk derived from a robust Poisson regression model adjusted for age. Studies are registered at ISRCTN89951424 and ClinicalTrials.gov, NCT04324606, NCT04400838, and NCT04444674. Findings Between April 23 and Nov 4, 2020, 23 848 participants were enrolled and 11 636 participants (7548 in the UK, 4088 in Brazil) were included in the interim primary efficacy analysis. In participants who received two standard doses, vaccine efficacy was 62·1% (95% CI 41·0–75·7; 27 [0·6%] of 4440 in the ChAdOx1 nCoV-19 group vs71 [1·6%] of 4455 in the control group) and in participants who received a low dose followed by a standard dose, efficacy was 90·0% (67·4–97·0; three [0·2%] of 1367 vs 30 [2·2%] of 1374; pinteraction=0·010). Overall vaccine efficacy across both groups was 70·4% (95·8% CI 54·8–80·6; 30 [0·5%] of 5807 vs 101 [1·7%] of 5829). From 21 days after the first dose, there were ten cases hospitalised for COVID-19, all in the control arm; two were classified as severe COVID-19, including one death. There were 74 341 person-months of safety follow-up (median 3·4 months, IQR 1·3–4·8): 175 severe adverse events occurred in 168 participants, 84 events in the ChAdOx1 nCoV-19 group and 91 in the control group. Three events were classified as possibly related to a vaccine: one in the ChAdOx1 nCoV-19 group, one in the control group, and one in a participant who remains masked to group allocation. Interpretation ChAdOx1 nCoV-19 has an acceptable safety profile and has been found to be efficacious against symptomatic COVID-19 in this interim analysis of ongoing clinical trials

    Does Croton argyrophyllus extract has an effect on muscle damage and lipid peroxidation in rats submitted to high intensity strength exercise?

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    Many species of the genus Croton have been used for anti-inflammatory, antiproliferative, antidiabetic, and antitumor purposes. The objective was to evaluate the e ect of a hydroethanolic extract (HEE) from the inner bark of Croton argyrophyllus (Euphorbiaceae) on muscle damage and oxidative stress in rats after high intensity exercise. The animals were divided into four groups: (i) the sedentary group (SV; n = 7), (ii) the exercise vehicle group (EV, n = 7), (iii) the sedentary group HEE (SHG; n = 7) composed of sedentary animals and treated with the hydroethanolic extract of C. argyrophyllus (200 mg/kg, v.o.), and (iv) the HEE exercise group (HEE; n = 7) composed of animals submitted to resistance exercise (RE) and treated with the hydroethanolic extract of C. argyrophyllus (200 mg/kg, v.o.). In the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) test, the HEE showed lower values of inhibition potential (IP%) at 39.79% compared to gallic acid, 87.61%, and lipoperoxidation inhibition at 27.4% (100 ?g/mL) or 28.6% (200 ?g/mL) (p < 0.001). There was inhibition in free radicals in vivo. The HEE of C. argyrophyllus partially reduced the biomarkers of oxidative stress in muscle tissue and muscular damage (creatine kinase (CK) and Lactate Dehydrogenase (LDH)) (p < 0.05) in rats, and in this sense it can be an aid to the recovery process after exhaustive e orts
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