1,157 research outputs found
Ocorrência, aspectos biológicos, danos e estratégias de manejo de Helicoverpa armigera (Hubner)(Lepidoptera: Noctuidae) nos sistemas de produção agrícolas.
bitstream/item/96040/1/CT201323-REVAT-ONLINE.pd
Eficácia de inseticidas aplicados nas sementes de soja no controle de Elasmopalplus lignosellus (ZELLER, 1848) (LEPIDOPTERA: PYRALIDAE), na primeira época de plantio.
bitstream/item/136308/1/18-Elizete-eficacia.pd
Comparison of the levels of depression and anxiety during the first and fourth waves of coronavirus disease-2019 pandemic in Brazil
OBJECTIVE
To compare the levels of depression, anxiety, physical activity, and mobility restrictions between the first wave in June 2020 and the fourth wave in January 2022 of the coronavirus disease-2019 (COVID-19) pandemic in Brazil.
PATIENTS AND METHODS
Brazilian citizens answered a self-administered questionnaire that included questions related to personal information, mobility restriction levels, physical activity levels, and the status of mood disorders in June 2020 (n=1853) and January 2022 (n=728).
RESULTS
The levels of mobility restrictions (p<0.001), anxiety (p<0.001), and depression (p<0.001) significantly decreased from 2020 to 2022. In June 2020, 23.2% of the participants presented moderate to severe anxiety, and in January 2022, this percentage decreased to 14.8%. In June 2020, 29.6% of the participants presented moderate to severe depressive symptoms, and in January 2022 this percentage decreased to 19.3%. On the contrary, physical activity levels significantly increased between 2020 and 2022 (p<0.001).
CONCLUSIONS
During the fourth wave of the COVID-19 pandemic, participants were less restricted and more physically active than in the first wave. Furthermore, anxiety and depression levels were significantly lower in the fourth wave than in the first wave. Despite this reduction, levels of anxiety and depression remain high; therefore, the authors suggest measures to encourage physical activity and promote mental health
Return to classes impact on mental health of university students during the COVID-19 pandemic
BACKGROUND
The Coronavirus Disease 2019 (COVID-19) pandemic and the necessary social isolation and distancing measures - that were adopted to prevent spreading the virus, including the suspension of university classes - negatively impacted the mental health of young adults. The aim of the current study was to investigate whether returning to online classes, even not presential, during the social isolation of the COVID-19 pandemic, affected the mental health of university students.
METHODS
Forty students (10 men and 30 women) (age, 22.3±3.8 years; body mass, 62.5±17.8 kg; height, 165.6±8.7cm) from undergraduate health courses participated in the study. The students answered a self-administered questionnaire designed to gather personal and quarantine information as well as information about the frequency of depression (PHQ-9) and anxiety (GAD-7) symptoms. The questionnaire was answered before and after the return to online classes.
RESULTS
There was a significantly lower frequency of depression symptoms after the return to online classes (Z = -2.27; p = 0.02). However, there was no difference in anxiety symptoms before and after returning to online classes (Z = -0.51; p = 0.61).
CONCLUSIONS
Return to online classes positively impacted the mental health (decrease of frequency of depression symptoms) of university students. Future studies are needed to observe whether the changes observed after returning to school are maintained over time
Blood and Imaging Biomarkers in the Long-term Follow-up of Bicuspid Aortic Valve Patients
Background: Bicuspid aortic valve (BAV) is a common congenital heart defect. Patients with BAV are at risk for long-term complications such as valve stenosis and regurgitation. This study aimed to investigate sex differences in blood and imaging biomarkers and to describe the long-term prognostic value of blood and echocardiographic biomarkers. Methods:Patients were included from 2 prospective observational cohort studies; they underwent venous blood sampling and transthoracic echocardiography including speckle tracking. Analyzed blood biomarkers were red-cell distribution width (RDW), creatinine, C-reactive protein (CRP), troponin T, N-terminal pro B-type natriuretic peptide (NT-proBNP), and transforming growth factor-beta (TGF-β). Sex differences were analyzed at baseline. Associations between biomarkers and arrhythmia-free and intervention-free survival were determined by Cox regression, adjusted for age and sex. Results:A total of 182 patients with BAV were included: median age 34; interquartile range [IQR]: 23-46 years; 55.5% male. CRP, NT-proBNP, and RDW were higher in women, whereas creatinine, troponin T and TGF-β were higher among men. After a median follow-up time of 6.9 (IQR: 6.5-9.9) years, arrhythmia-free and intervention-free survival was, 81.0% and 73.1%, respectively. NT-proBNP was associated with both arrhythmia-free and intervention-free survival (hazard ratio [HR], 1.94, P = 0.005 and HR, 2.06, P = 0.002, respectively). On echocardiography higher left atrial (LA) size, left ventricular end-diastolic diameter (LVEDD), left ventricular (LV) mass index and E/e’ ratio were associated with lower arrhythmia-free survival, whereas higher LA size, LV mass index, aortic valve peak velocity, and aortic regurgitation were associated with lower intervention-free survival. Conclusions: Differences were observed in blood biomarkers between men and women with BAV. Besides LV systolic parameters, diastolic LV function and NT-proBNP should have a more prominent role as prognostic markers in clinical care.</p
Eficiência de inseticidas no controle do percevejo-marrom (Euschistus heros) em soja, na safra 2018/2019: resultados sumarizados de ensaios cooperativos.
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