The purpose of this study was to evaluate the uniformity of distribution coefficient (UDC) and coefficient of variation (CV) of a familiar set of irrigation, classifying it the ASAE standard. The irrigation and fertigation are determined by two methods the KELLER & KARMELI and DENÍCULI . The two experiments were subjected to varying pressures: 12, 14, 16 and 18 kPa, in a completely randomized design of twenty samples composed of flows with three replications. Urea, potassium chloride (KCl) and ammonium phosphate (MAP) were the elements used for fertigation. The system consisted of a 200 L tank, which supplied another container of 30 L, it was moved vertically to control the pressure. The data was statistically compared between treatments for each methodology. In fertigation the best pressure was 16 kPa and was classified as "excellent" for UDC (91.03%) and "marginal" for C.V. (7.47%). For the irrigation treatment, the best pressure was 16 kPa rated "excellent" for UDC (91.2%) and "marginal" for C.V. (7.68%). The DENÍCULI et al. (1980) methodology proved more reliable for the evaluation of drip systems. It was observed that this set has good uniformity of distribution, but with great variability in flows.

Objective: to determine the prevalence of sleep quality and common mental disorder in Nursing professionals and factors associated with sleep change. Method: a cross-sectional, analytical and quantitative study developed with 196 Nursing professionals of a public hospital and a mixed one. Data was collected by means of an instrument of sociodemographic characterization, by the Self-Report Questionnaire 20 and Pittsburgh Sleep Quality Index and were analyzed by descriptive and inferential statistics to identify possible factors associated with sleep changes. Results: sleep changes were identified among the Nursing professionals with a frequency of 76.5% (70.4-82.1). Sleep quality was classified as poor in 41.8% (41.8-55.6) and sleep disorder in 27.6%. (21.4-34.2). The prevalence of common mental disorder was identified in 36.7% (30.1-43.9). The main factor for poor sleep quality was the presence of common mental disorder (Odds Ratio: 5.15; p<0.001). Conclusion: sleep changes were prevalent and the characteristics of the work environment and the presence of mental disorder showed relevance in the changes.

The prevalence of hepatitis C virus (HCV) and the acquired immunodeficiency virus (HIV) is much higher in prisons than in community settings. Some explanatory factors for this burden include putative aspects of the prison environment, such as unprotected sexual relations and sexual violence, use of injectable drugs and syringe sharing. Nonetheless, efforts in better understanding the dynamics of both HCV and HIV are scarce in developing countries such as Brazil, which poses a risk not only to the inmates but to the community as well. In this investigation, we sought to determine the seroprevalence and sociodemographic and behavioral risk factors associated with HIV and anti-HCV antibodies among men detained at high-security institutions. This is an epidemiological, proportionally stratified observational study including 1,132 inmates aged 18 to 79 years-old (Mage = 32.58±10.18) from eleven high-security prisons located in the State of Paraná, Brazil. We found that HIV and anti-HCV prevalence were 1.6% (95% CI: 1.0–2.5) and 2.7% (95% CI: 1.0–2.5), respectively. Risk factors associated with HIV included not receiving intimate visits (OR = 8.80, 95% CI: 1.15–66.88), already having another sexually transmitted infection (OR = 3.89, 95% CI: 1.47–10.29), and reporting attendance in HIV preventive campaigns (OR = 4.24, 95% CI: 1.58–11.36). Moreover, anti-HCV seroprevalence was associated with higher age (OR = 4.03, 95% CI: 1.61–10.07), criminal recidivism (OR = 2.58, 95% CI 1.02–6.52), and the use of injectable drugs (OR = 7.32, 95% CI 3.36–15.92). Although prisons might increase the risk for acquiring and transmitting HIV and HCV, the adoption of permanent epidemiological surveillance programs could help reducing the circulation of viruses, involving strategies focusing on screening, treating, and preventing infections to assure proper prisoner health. Moreover, these policies need to take place inside and outside the prison environment to offer continued assistance to former prisoners once they leave the institution.

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BACKGROUND: Considering the disruptions imposed by lockdowns and social distancing recommendations, coupled with overwhelmed healthcare systems, researchers worldwide have been exploring drug repositioning strategies for treating severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). OBJECTIVE: To compile results from randomized clinical trials on the effect of dexamethasone, compared with standard treatment for management of SARS-CoV-2. DESIGN AND SETTING: We conducted a systematic review and meta-analysis in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines in a Brazilian public university. METHODS: We sought to compile data from 6724 hospitalized patients with confirmed or suspected SARS-CoV-2 infection. RESULTS: Treatment with dexamethasone significantly reduced mortality within 28 days (risk ratio, RR: 0.89; 95% confidence interval, CI: 0.82-0.97). Dexamethasone use was linked with being discharged alive within 28 days (odds ratio, OR: 1.20; 95% CI: 1.07-1.33). CONCLUSIONS: This study suggests that dexamethasone may significantly improve the outcome among hospitalized patients with SARS-CoV-2 infection and associated severe respiratory complications. Further studies need to consider both dose-dependent administration and outcomes in early and later stages of the disease. PROSPERO PLATFORM: CRD42021229825.

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A cobertura vegetal da superfície terrestre é um dos condicionante da variação de temperatura do ar encontrado nestes locais. Assim o objetivo da presente pesquisa é verificar a correlação espacial existente entre os padrões de uso da terra e valores de temperatura de superfície (Ts) registrados pelo satélite Landsat 8. A área de estudo está localizada na zona rural de Francisco Beltrão/PR, caracterizada pela presença de usos agrícolas de subsitência.  Foram processados dados de cenas datadas de 27/11/2017 e 13/12/2017, tanto para a obtenção dos mapas de uso e cobertura da terra, como para os dados de temperatura de superfície. As Ts registradas por cada uma das classes de uso da terra: água, floresta, campo sujo, campo, lavoura e solo exposto, demosntraram uma forte correlação de Pearson, sendo de 0,9116 e 0,9292 respectivamente para as cenas mapeadas. Ao analisar a homogeneidade entre as variâncias da Ts de cada classe, verificou-se que os valores das médias não possuem uma similaridade mínima significativa entre si. O teste de Tukey indicou que para a primeira data nenhuma das classes de uso apresentou valores semelhantes entre si. Já para a segunda data  as classes de água e floresta apresentaram Ts estatisticamente similares, além das classes de campo sujo e campo.