Evaluation of fabrics' resistance for surgical aprons after washing-sterilization process / Avaliação da resistência de tecidos para aventais cirúrgicos após processo de lavagem e esterilização

A surgical center is a unique place for biochemical risks, specially concerning surgical aprons, as they tend to be soaked with fluids from both patients and its users during procedures. This study evaluates how the common fabrics used as raw material in reusable surgical aprons behave after washing-sterilization process. In order to perform such analysis, this study uses three types of fabrics: 100% cotton, mixed (67% cotton and 33% polyester), and 100% polyester. The variables “grammage,” “pore area,” and “bacterial growth” were evaluated in three different moments. The variables “grammage” and “pore area”, presented less wear out in cotton fabric. However, it is noticed that textiles with natural fibers (e.g., cotton or mixed) had a higher incidence of bacterial growth. Even though cotton fabric presented one of the highest incidences of bacterial infestation, it was chosen as the best raw material for surgical aprons. To solve this problem mentioned above, we suggested using antibacterial finishes, which are common while manufacturing reusable surgical aprons

Breath analysis using electronic nose and gas chromatography-mass spectrometry: A pilot study on bronchial infections in bronchiectasis

Background and aims: In this work, breath samples from clinically stable bronchiectasis patients with and without bronchial infections by Pseudomonas Aeruginosa- PA) were collected and chemically analysed to determine if they have clinical value in the monitoring of these patients. Materials and methods: A cohort was recruited inviting bronchiectasis patients (25) and controls (9). Among the former group, 12 members were suffering PA infection. Breath samples were collected in Tedlar bags and analyzed by e-nose and Gas Chromatography-Mass Spectrometry (GC-MS). The obtained data were analyzed by chemometric methods to determine their discriminant power in regards to their health condition. Results were evaluated with blind samples. Results: Breath analysis by electronic nose successfully separated the three groups with an overall classification rate of 84% for the three-class classification problem. The best discrimination was obtained between control and bronchiectasis with PA infection samples 100% (CI95%: 84-100%) on external validation and the results were confirmed by permutation tests. The discrimination analysis by GC-MS provided good results but did not reach proper statistical significance after a permutation test. Conclusions: Breath sample analysis by electronic nose followed by proper predictive models successfully differentiated between control, Bronchiectasis and Bronchiectasis PA samples

Taquicardia ventricular idiopática em portador de miocárdio não compactado

Relatamos o caso de paciente do sexo masculino, com 23 anos de idade, portador de miocárdio não compactado e taquicardia ventricular monomórfica sustentada. O paciente foi submetido a implante de cardiodesfibrilador implantável após diagnóstico confirmado por meio de ressonância nuclear magnética cardíaca e mantido em tratamento clínico com medicação antiarrítmica, sem recorrência de arritmia ventricular no acompanhamento ambulatorial

Doença do nó sinusal em paciente jovem com síndrome de Mayer-Rokitansky-Küster-Hauser

Relato do caso de uma paciente de 39 anos de idade com síndrome de Mayer-Rokitansky-Küster-Hauser, apresentando doença do nó sinusal e necessidade de implante de marcapasso bicameral. Por se tratar de paciente jovem, sem outras causas secundárias de bradicardia, sugerese a hipótese de relação entre as duas doenças, visto que já há descrição de associação de síndrome de Mayer-Rokitansky-Küster-Hauser e cardiopatias estruturais, sem referências de relação com bradicardia até o momento

DETERMINAÇÃO DE CLOROFILA A EM ÁGUAS SUBTERRÂNEAS COMO POTENCIAL CONTAMINAÇÃO POR CIANOBACTÉRIAS

Chlorophyll a is a pigment also produced by cyanobacteria, which is why it is used as an indicator of their presence. Cyanobacteria are responsible for releasing toxins with harmful effect on human health. Thus, the present work aims to verify the presence of chlorophyll a in groundwater. For this, 15 samples were collected and analyzed by the spectrophotometry method. According to the data obtained, it was possible to verify the presence of chlorophyll in 5 of the 15 wells analyzed, raising an alert to the authorities about the quality of groundwater that is used to supply a large part of the population of the State of Ceará. With this, it is concluded that, despite chlorophyll a not being a parameter monitored by the current ordinance for groundwater, it is necessary to monitor the quality of the wells, since they can suffer contamination and cyanobacteria to develop.A clorofila a é um pigmento também produzido por cianobactérias, por isso é usado como indicador de sua presença. As cianobactérias são responsáveis pela liberação de toxinas com efeitos nocivos à saúde humana. Assim, o presente trabalho visa verificar a presença de clorofila a em águas subterrâneas. Para isso, 15 amostras foram coletadas e analisadas pelo método de espectrofotometria. De acordo com os dados obtidos, foi possível verificar a presença de clorofila em 5 dos 15 poços analisados, alertando as autoridades sobre a qualidade da água subterrânea que é utilizada para abastecer grande parte da população do Estado do Ceará . Com isso, conclui-se que, apesar da clorofila a não ser um parâmetro monitorado pela atual portaria para águas subterrâneas, é necessário monitorar a qualidade dos poços, pois os mesmos podem sofrer contaminação e desenvolver cianobactérias

Serviço social, políticas e sujeitos sociais

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A genome survey of Moniliophthora perniciosa gives new insights into Witches' Broom Disease of cacao

<p>Abstract</p> <p>Background</p> <p>The basidiomycete fungus <it>Moniliophthora perniciosa </it>is the causal agent of Witches' Broom Disease (WBD) in cacao (<it>Theobroma cacao</it>). It is a hemibiotrophic pathogen that colonizes the apoplast of cacao's meristematic tissues as a biotrophic pathogen, switching to a saprotrophic lifestyle during later stages of infection. <it>M. perniciosa</it>, together with the related species <it>M. roreri</it>, are pathogens of aerial parts of the plant, an uncommon characteristic in the order Agaricales. A genome survey (1.9× coverage) of <it>M. perniciosa </it>was analyzed to evaluate the overall gene content of this phytopathogen.</p> <p>Results</p> <p>Genes encoding proteins involved in retrotransposition, reactive oxygen species (ROS) resistance, drug efflux transport and cell wall degradation were identified. The great number of genes encoding cytochrome P450 monooxygenases (1.15% of gene models) indicates that <it>M. perniciosa </it>has a great potential for detoxification, production of toxins and hormones; which may confer a high adaptive ability to the fungus. We have also discovered new genes encoding putative secreted polypeptides rich in cysteine, as well as genes related to methylotrophy and plant hormone biosynthesis (gibberellin and auxin). Analysis of gene families indicated that <it>M. perniciosa </it>have similar amounts of carboxylesterases and repertoires of plant cell wall degrading enzymes as other hemibiotrophic fungi. In addition, an approach for normalization of gene family data using incomplete genome data was developed and applied in <it>M. perniciosa </it>genome survey.</p> <p>Conclusion</p> <p>This genome survey gives an overview of the <it>M. perniciosa </it>genome, and reveals that a significant portion is involved in stress adaptation and plant necrosis, two necessary characteristics for a hemibiotrophic fungus to fulfill its infection cycle. Our analysis provides new evidence revealing potential adaptive traits that may play major roles in the mechanisms of pathogenicity in the <it>M. perniciosa</it>/cacao pathosystem.</p

estudos artísticos

A Revista Croma procura as intervenções que a arte proporciona, sejam as mais implicadas ou as que provocam posições que contrariam a indiferença e favorecem a cidadania. São propostas de artistas, sobre outros artistas, tendo como foco uma intervenção na comunidade. São propostas mediadoras que posicionam a audiência no interior do discurso, promovendo uma atualização das retóricas críticas contemporâneas. Para uma consciência ambiental, ou estética numa perspetiva educativa, ou de cidadania e responsabilidade social, a arte propõe-se em desafio ao público como um mergulho: o mergulho da arte. É campo para a Cultura Visual no plano da construção, e também campo para a intervenção. Os dezasseis artigos compreendidos nesta edição da Revista Croma são instância e exemplo da intervenção construtiva e assertiva junto das comunidades.info:eu-repo/semantics/publishedVersio