Inheritance of the resistance to corn stunt

Os objetivos deste trabalho foram determinar a herança da resistência ao complexo de enfezamento em milho e determinar as melhores fontes de resistência entre as linhagens estudadas. Foram realizadas as análises dialélica e médias de gerações em linhagens de milho. Para a análise dialélica, foram cruzadas 12 linhagens de milho, em dialélico parcial. Para análises de médias de gerações, foram cruzadas três linhagens resistentes e quatro suscetíveis, para a obtenção das gerações F1, F2, RCPR e RCPS. Os trabalhos foram conduzidos em Jaboticabal, SP. A incidência de enfezamento foi avaliada no estádio fenológico R3. Efeitos significativos quanto à capacidade geral de combinação e capacidade específica de combinação foram obtidos, o que indicou que, no controle do caráter enfezamentos, estão envolvidos tanto os efeitos aditivos quanto os de dominância. Análises de médias de gerações mostraram a presença de poucos genes envolvidos com o controle da resistência, com predominância de efeitos aditivos, o que permite a seleção de genótipos resistentes. As linhagens L02, L03 e L05 poderão ser utilizadas como fontes de resistência, em futuras combinações híbridas.The objectives of this work were to determine the inheritance of resistance to corn stunt and determine the best resistance sources among the studied inbred lines. Diallel analysis and generation means were made for corn inbred lines. For the diallel analysis, twelve corn-inbred lines were crossed, in a partial diallel scheme. For the analyses of generation means, three resistant inbred lines and four susceptible ones were crossed, to obtain the F1, F2, RCPR and RCPS generations. The experiments were carried out in Jaboticabal, SP, Brazil. Corn sfunt incidence was evaluated at the phenological phase R3. Significant effects for CGC and CEC were obtained, which indicated that both additive and dominance effects were involved in corn expression of resistance to stunt. The analyses of generation means showed that few genes are involved in the resistance control, with predominant additive effects, which allows the selection of resistant genotypes. Lineages L02, L03 and L05 may be used as resistance sources in future hybrid combinations

QUALIFICAÇÃO PROFISSIONAL: CAMINHO PARA A INCLUSÃO DE PESSOAS COM NECESSIDADES ESPECIAIS

A inclusão é um processo ao qual a sociedade se adapta para permitir a participação das pessoas em todos os seus setores, inclusive daquelas Pessoas com Necessidades Especiais (PNE’s), e estas, por sua vez, se preparam para assumir seus papéis na sociedade. O acesso de pessoas com deficiência ao mercado de trabalho é um dos aspectos do processo de inclusão, importante por proporcionar condições para a satisfação de suas necessidades básicas, a valorização de si mesmas e o desenvolvimento de suas potencialidades. As instituições especializadas, de caráter segregacionista, são criticadas pelos processos adotados na capacitação profissional de pessoas com necessidades especiais. Poucas oferecem escolarização para seus alunos, concentrando-se, em sua maioria, no desenvolvimento de habilidades básicas para o trabalho ou em capacitação profissional eventualmente diferente daquela exigida pelo mercado de trabalho. Este estudo tem por principal objetivo oportunizar o debate e a reflexão sobre a realidade das pessoas com deficiência na sociedade, com foco de estudo na integração dessas pessoas na universidade e no mercado de trabalho. O estudo mostra os avanços e as contradições encontradas na legislação brasileira, que são grandes lacunas as quais devem ser preenchidas com o propósito de facilitar a vida da pessoa com deficiência, principalmente quando se trata de acessibilidade; motivo este que, em suma, é o que mais impedem-nas de ingressarem e permanecerem na universidade e no mercado de trabalho. Necessário se faz deixar de lado suas limitações e passar a enxergar suas potencialidades

COVID-19 symptoms at hospital admission vary with age and sex: results from the ISARIC prospective multinational observational study

Background: The ISARIC prospective multinational observational study is the largest cohort of hospitalized patients with COVID-19. We present relationships of age, sex, and nationality to presenting symptoms. Methods: International, prospective observational study of 60 109 hospitalized symptomatic patients with laboratory-confirmed COVID-19 recruited from 43 countries between 30 January and 3 August 2020. Logistic regression was performed to evaluate relationships of age and sex to published COVID-19 case definitions and the most commonly reported symptoms. Results: ‘Typical’ symptoms of fever (69%), cough (68%) and shortness of breath (66%) were the most commonly reported. 92% of patients experienced at least one of these. Prevalence of typical symptoms was greatest in 30- to 60-year-olds (respectively 80, 79, 69%; at least one 95%). They were reported less frequently in children (≤ 18 years: 69, 48, 23; 85%), older adults (≥ 70 years: 61, 62, 65; 90%), and women (66, 66, 64; 90%; vs. men 71, 70, 67; 93%, each P < 0.001). The most common atypical presentations under 60 years of age were nausea and vomiting and abdominal pain, and over 60 years was confusion. Regression models showed significant differences in symptoms with sex, age and country. Interpretation: This international collaboration has allowed us to report reliable symptom data from the largest cohort of patients admitted to hospital with COVID-19. Adults over 60 and children admitted to hospital with COVID-19 are less likely to present with typical symptoms. Nausea and vomiting are common atypical presentations under 30 years. Confusion is a frequent atypical presentation of COVID-19 in adults over 60 years. Women are less likely to experience typical symptoms than men

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Preparação e medidas de filmes seletivos eletrodepositados para conversão térmica de energia solar

Orientador: Milton AbramovichDissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Fisica Gleb WataghinResumo: Apresentamos uma metodologia de construção e análise das propriedades radiativas relevantes á superfícies seletivas eletrodepositadas do tipo "niquel preto", para conversão fototêrmica da energia solar. Foram confeccionadas 109 ( cento e nove ) amostras em um sistema de eletrodeposição controlada; a refletância espectral foi obtida por espectrofotometria; as amostras mostraram-se oticamente reprodutiveis. Foi analisado o comportamento da absortância direcional total, da emitância hemisférica total e da figura de mérito em função dos parâmetros de eletrodeposição. A melhor superfície seletiva construida tem absot tância direcional total de 82%, e emitância hemisférica total de 7,5%Abstract: We present a method of construction and analysis of relevant radiative properties of electroplated "black nickel" selective surfaces, utilized for phototermic conversion of solar energy. We made 109 surfaces in a controlled system of electroplating. The spectral refletance was obtained by espectrophotometry; and samples appeared to be optically reproducible. It was also analised the behaviour of the total directional absortance, total hemisferical emitance and of the figure of merit, as a function of the elettroplating parameters. The best of all surfaces presented 82% for the total directional absortance and 7,5% for total hemisferical emitanceMestradoFísicaMestre em Físic