Guía del León Romano

American Journal of Physics, 2014

We present details of an experiment that improves earlier attempts to study the propagation of diffusive thermal waves inside a metal rod. In addition to technical improvements in data acquisition and heater control, the experiment physically illustrates insightful concepts in Fourier analysis. For example, the harmonic content and the differential damping of harmonics can be observed in the thermal domain, thus providing a valuable extension to the standard Fourier analysis of electric circuits.

Stroke, 2009

Background and Purpose— Uncontrolled studies have shown that statins can improve cerebral vasoreactivity (CVR) in patients with mild small vessel disease. We sought to determine whether high-dose atorvastatin increases CVR compared with placebo in patients with severe small vessel disease. Methods— Ninety-four adults with recent lacunar stroke were randomly allocated in a double-blind manner to 80 mg of atorvastatin daily or matching placebo after stratification for hypertensive and diabetic status. The primary end point was change in CVR after 3 months of treatment. Secondary outcomes were changes in brachial and carotid artery endothelial-dependent vasodilations. Results— At baseline, all patients had a severely impaired CVR (mean, 12.1%; 95% CI, 9.5–14.7) and carotid (mean, −0.25%; 95% CI, −1.17–0.67) and brachial artery (mean, 2.72%; 95% CI, 1.39–4.05) endothelial function. Despite reductions of 55% in low-density lipoprotein cholesterol and of 30% in high-sensitivity C-reactive...

African Educational Research Journal, 2021

This research aims to determine the relationship between the computer use related self-efficacy perceptions and academic success of conservatory students in distance education during the COVID-19 pandemic. The sample group of the study consists of 130 students who received distance education at Zonguldak Bülent Ecevit University State Conservatory during the COVID-19 pandemic. The quantitative data of the study were obtained via the "Computer Self-Efficacy Perception Scale" developed by Aşkar and Umay, and the academic success scores were obtained through correspondence with the conservatory administration. The demographic characteristics of the participants including gender, branch, age, and class information in the sample group were collected through a form prepared by the researcher. SPSS 21.0 program was used in the analysis of the research data. The data was analysed using a t-test, ANOVA and correlation and regression analyses. According to the results of the research, there is a positive, significant, and moderate relationship between conservatory students' computer self-efficacy perceptions and their academic success scores in distance education. The current study revealed that conservatory students' computer self-efficacy perceptions are a predictor of the academic success scores in distance education and can explain 30.2% of the academic success score. Gender, branch, age, and class variables do not have a significant effect on academic success scores and computer self-efficacy perceptions.

2025

the work brought here is the result of some initial readings and implications that were mobilized in the preparation of the research we intend to carry out, linked to the Programa de graduação em Educação at the Universidade Federal de Santa Catarina (PPGE-UFSC). Thus, the social movements of digital sovereignty and food sovereignty gained notoriety in this process, to reflect on the possible epistemological, pedagogical and communicational contributions to the field of Education and Communication. With this in mind, we consider the potential of these social movements to educate and re-educate society (LINO GOMES, 2017). The processes of democratic inflection that the country has been going through since 2016 and the Covid-19 pandemic, have laid bare the criminal rates of hunger, impoverishment of the Brazilian population and precariousness of Public Education. Furthermore, the advances made by oligopolies like Google For Education in Public Education are alarming. Thus, the intention of this work is to highlight other epistemologies, methodologies and decolonial social struggles that strengthen democracy and quality Public Education. Our proposal will be to dialogue with the epistemologies produced in social movements in Brazil that fight for food sovereignty and digital sovereignty, in order to contribute to a perspective of qualifying the public debate in favor of democratic and emancipatory Education and Communication with society, supported by the concept of food and digital sovereignty.

National Journal of Physiology, Pharmacy and Pharmacology, 2019

Background: Exercise testing is a way to assess the cardiorespiratory fitness (CRF). Conventionally, it has been reported that CRF decreases with an increase in body mass index (BMI). Moreover, there are gender-associated differences in the CRF. However, in the under-equipped physiology laboratory, the results of exercise testing may not produce the ideal results, as it has been accepted traditionally. Aims and Objectives: The aim of the current study was to assess the effect of BMI and gender on the cardiorespiratory parameters after dynamic exercise. The primary objective of the study is to set an example for students to report authentic results rather than making falsified ideal results. Materials and Methods: Twenty-one females and 23 males were involved in the study that was further divided into three groups based on BMI-normal weight, underweight, and overweight. Participants performed a 3-min exercise bout on the cycle ergometer. Cardiorespiratory parameters of each participant were recorded in front of other participants just before and after the exercise by the locally available instruments available in the laboratory. Analysis of variance with post hoc Tukey was applied and P ≤ 0.05 was considered as statistically significant. Results: Pre-exercise cardiorespiratory study parameters were unaffected by BMI, although males showed a higher resting blood pressure than the females. Post-exercise cardiorespiratory parameters remained unaffected by BMI, but females showed a significantly higher percentage change in post-exercise systolic blood pressure, pulse rate, rate pressure product, and respiratory rate than the males. Conclusion: The results of the present study are far from the traditionally accepted results; however, it has set an example for the budding doctors to report genuine results.