74 research outputs found
The impact of the COVID-19 pandemic on dental trauma attendance: a systematic review and meta-analysis
This systematic review and meta-analysis aimed to analyze the impact of the COVID-19 pandemic on dental trauma patient attendance. The study was registered in the PROSPERO system, using the CRD42021288398 protocol. Searching was performed in PubMed, Scopus, Web of Science, Embase, Lilacs, and OpenGrey databases, using the following keywords: “Tooth injuries,” “Dental trauma,” “Traumatic Dental injury,” and “COVID-19". We included observational studies evaluating dental trauma in the context of the COVID-19 pandemic. Quality assessment was performed using the Joanna Briggs Institute Critical Appraisal Checklist for Cross-Sectional Studies. Meta-analysis was performed in RevMan 5.4 software with Odds Ratios as a pooled measure of effect, with a 95% confidence interval, and using random-effects modeling. After applying the eligibility criteria, 32 studies were included for qualitative analysis, in which 10 were used to assess the frequency of dental trauma diagnoses in dental emergencies. Despite the decrease of visits during COVID-19, the analysis revealed no difference between the pandemic and pre-pandemic periods. Regarding the type of dental trauma, two of the studies revealed no differences for the periods before and during the pandemic. This study revealed that the COVID-19 pandemic has not impacted the frequency or type of dental trauma compared to previous periods
Produtividade do coentro em função de fontes e doses de nitrogênio / Coriander yield as a function of the nitrogen sources and doses
Apesar da relativa importância do coentro em termos comerciais e alimentĂcios, poucos estudos tĂŞm sido conduzidos em relação Ă fertilização desta cultura, sobretudo a nitrogenada. O objetivo do trabalho foi avaliar a produtividade do coentro (cv. VerdĂŁo) em função de fontes e doses de nitrogĂŞnio (N). Foi empregado o delineamento blocos casualizados, com os tratamentos dispostos em esquema fatorial 2 x 5, constituĂdos da interação de duas fontes (ureia e sulfato de amĂ´nio) e cinco doses (0; 75; 150; 225 e 300 kg ha-1) de nitrogĂŞnio (N), com quatro repetições. Foram avaliados: altura de plantas (cm), nĂşmero de folhas (unidades/planta), nĂşmero de molhos(unidades/m2), e produtividade (kg ha-1) de massa verde da parte aĂ©rea (caule + folhas). As doses de máxima eficiĂŞncia econĂ´mica de N, para as duas fontes de N empregadas, foram calculadas empregando os preços dos fertilizantes e de coentro praticados em Santana do Ipanema-AL, no ano de 2011. As fontes de N empregadas (ureia e sulfato de amĂ´nio) resultaram em efeito distinto sobre as caracterĂsticas produtivas do coentro, tendo a ureia apresentado maior eficiĂŞncia agronĂ´mica para a produtividade da cultura. Os resultados obtidos evidenciam que, independente da fonte de N empregada, todas as caracterĂsticas produtivas aumentaram de forma quadrática com aumento das doses de N. As doses de máxima eficiĂŞncia econĂ´mica de N para a produtividade do coentro foram 163 e 147 kg ha-1, resultando em produtividades de massa verde de 9.795 e 7.125 kg ha-1, para a ureia e sulfato de amĂ´nio, respectivamente.
Rib Fracture in Buffalo with Ruminal Cannula
Background: Buffalos are very rustic animals that are adapted to adverse conditions, but the lack of adequate management can increase the susceptibility of these animals to several diseases. Rib fracture in this species is usually related to mineral deficiency and complications resulting from unappropriated management. Rib fractures in ruminants are rarely diagnosed and usually present conservative treatment; however, cases with presence of contaminated wounds require extra attention. The objective of this work was to report an atypical case of open fracture of the last rib in a buffalo with ruminal cannula, describing the case from diagnosis to surgical treatment.Case: An adult female water buffalo (Bubalus bubalis) that was well fed and receiving minerals, with implantation of a ruminal cannula, presented a lesion around the ruminal cannula, with increasing volume, exudation, and myiasis. Thegeneral parameters and behavior of the animal were apparently normal. The animal presented normal appetite and respiration and good physical condition and nutritional state, with pain reaction to the touch in the region of the lesion andtheir adjacencies; it presented no claudication and reluctance to remain in left lateral decubitus, and no discomfort. The clinical inspection of the cutaneous lesion showed an oblique-type fracture in the body of the last left rib, with exposed bone in the lumbar region and extremity exposed to the ruminal cannula, already presenting necrosis. The region was cleaned, removing larvae (myiasis) for better exposition of the fracture; in the following day, an osteotomy was done to remove exposed bone fragments. A trichotomy, cleaning, and debridement of the lesion and their adjacencies were done, with subsequent sedation and locoregional paralumbar anesthesia with lidocaine for resection of necrotic bone fragments. Cutaneous and muscle syntheses were not done because the region presented permanent contact with the rumen content. The post-operatory management was based on daily cleanings and bandages, with administration of antibiotics every 48 h for 20 days. The total recovery of the animal occurred within 45 days after the surgery.Discussion: Despite rib fractures in buffalos are mainly related to mineral deficiency, the case of the present study showed that these fractures are not always related to pre-existent causes. The clinical signs of the lesion were focal, because they refer to an open fracture that did not caused injuries to other structures, thus not determining an associated symptomatology. Opened rib fractures are rare, and most of them are healed by second intention without veterinary intervention. Regarding open fractures, the decontamination and debridement of a lesion and their adjacencies with removal of necrotic tissuesand use of antibiotics are essential for prevention of infections. When the lesion is in a contaminated region by permanent contact with rumen content, as in this case, daily cleaning with bandages is needed for a best healing, but synthesis oftissues is not indicated because there is a possibility of contamination and formation of abscesses. Therefore, procedures that ensure the decontamination of the wound and prevention of infections with prolonged use of antibiotics are essential for a better healing of open rib fractures in regions that are subjected to constant contamination
Efeitos da redução da proteĂna dietĂ©tica sobre o desempenho e as caracterĂsticas de carcaça de frangos de corte de 1 a 21 dias de idade
Genomics and epidemiology for gastric adenocarcinomas (GE4GAC): a Brazilian initiative to study gastric cancer
Abstract Gastric cancer (GC) is the fifth most common type of cancer worldwide with high incidences in Asia, Central, and South American countries. This patchy distribution means that GC studies are neglected by large research centers from developed countries. The need for further understanding of this complex disease, including the local importance of epidemiological factors and the rich ancestral admixture found in Brazil, stimulated the implementation of the GE4GAC project. GE4GAC aims to embrace epidemiological, clinical, molecular and microbiological data from Brazilian controls and patients with malignant and pre-malignant gastric disease. In this letter, we summarize the main goals of the project, including subject and sample accrual and current findings
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
Nutritional status of schoolchildren aged 7-10 years enrolled in public and private schools of Cascavel, Paraná, Brazil
estudos artĂsticos
Crescer na intervenção e na comunicação Ă© um dos objetivos da Revista Gama, estudos artĂsticos. Promove-se a comunicação, formal, dentro das regras da comunicação acadĂ©mica, atravĂ©s de textos cuja caracterĂstica comum Ă© serem escritos por artistas, sobre a obra de outros artistas. Este foi o critĂ©rio base que inspirou o projeto das iniciativas associadas ao Congresso CSO (criadores sobre outras obras), que já completou seis anos de disseminação. A Revista Gama singularizou-se por convocar artistas e obras que de algum modo estariam esquecidos, desconhecidos, ou ainda pouco divulgados. Obras cuja execução tem raĂzes em passados mais ou menos recentes, mas que pelo excesso de discursos na contemporaneidade, nĂŁo obtiveram a divulgação desejada. Este Ă© um propĂłsito de intervenção no conhecimento patrimonial: as obras existem, foram executadas, enriquecem o nosso patrimĂłnio, mas há que as fazer funcionar, dar a conhecer, aos outros artistas, aos especialistas, ao grande pĂşblico. Assim se reuniram neste nĂşmero 6 da Revista Gama vinte e quatro artigos originais, procurando-se, na sua sequĂŞncia e articulação, algumas relações de pertinĂŞncia e afinidade. Olhares sobre arquivos, sobre acervos, sobre coleções, conjuntos muitas vezes fechados e em perigo de esquecimento, ou de incompreensĂŁo: uma entrada discreta que se abre para o interior de uma câmara escura, que Ă© um espaço cheio de imagens por revelar.info:eu-repo/semantics/publishedVersio
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