cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11453055
title: Antioxidant and prebiotic effects of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats

description: Abstract The aim of this study was to evaluate the antioxidant and prebiotic effect of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats. To obtain the beverage, a Response Surface Methodology was used, with concentration of yacon extract (x1) and the sweetener (x2) added to a mixture of tropical fruits as independent variables, and the sensorial acceptance as response. The optimized beverage showed higher values for antioxidant capacity, measured by ABTS, FRAP and DPPH assays. Thus, the fructooligosaccharides content (2.32 ± 0.65 g FOS/100 g), total phenolic (126.83 ± 9.48 mg gallic acid equivalent/100 g) and ascorbic acid (171.64 ± 7.31 mg/100 g) shows that the beverage contains high levels of these bioactive compounds. In addition, the beverage was tested in vivo, using male Wistar rats, divided into five groups (control, non-treated diabetic, and diabetic treated with 100, 200 or 400 mg of lyophilized beverage/kg/day). The results showed a promotion of the growth of lactobacilli in cecal material and an increase in catalase activity in the liver, in a dose-dependent manner, showing the prebiotic and antioxidant effects of the beverage in the diabetic model.
DOI: 10.6084/m9.figshare.11453055.v1
title: Antioxidant and prebiotic effects of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats

description: Abstract The aim of this study was to evaluate the antioxidant and prebiotic effect of a beverage composed by tropical fruits and yacon in alloxan-induced diabetic rats. To obtain the beverage, a Response Surface Methodology was used, with concentration of yacon extract (x1) and the sweetener (x2) added to a mixture of tropical fruits as independent variables, and the sensorial acceptance as response. The optimized beverage showed higher values for antioxidant capacity, measured by ABTS, FRAP and DPPH assays. Thus, the fructooligosaccharides content (2.32 ± 0.65 g FOS/100 g), total phenolic (126.83 ± 9.48 mg gallic acid equivalent/100 g) and ascorbic acid (171.64 ± 7.31 mg/100 g) shows that the beverage contains high levels of these bioactive compounds. In addition, the beverage was tested in vivo, using male Wistar rats, divided into five groups (control, non-treated diabetic, and diabetic treated with 100, 200 or 400 mg of lyophilized beverage/kg/day). The results showed a promotion of the growth of lactobacilli in cecal material and an increase in catalase activity in the liver, in a dose-dependent manner, showing the prebiotic and antioxidant effects of the beverage in the diabetic model.
DOI: 10.6084/m9.figshare.11453046
title: Quantification of Discontinuities in Welded Joints Using Gamma Tomography

description: Gamma tomography was used in this work to evaluate the recurrent defects in welding processes in naval steel sheets. It was used a first-generation equipment consisting of a source of Cesium-137, with activity of the order of 200 mCi, coupled to a Thallium-doped Sodium Iodide detector, NaI (Tl). For the study, specimens were produced in ASTM A131-AH36 steel sheets with 13.7 mm thickness; all welded by Metal Active Gas process. One reference sample was fabricated, with no macroscopically measurable defects and another welded under wind conditions producing a weld bead with different types of discontinuities. The microstructural characterization of welded joints made possible a qualitative evaluation between defective joints, in relation to the joint without defects. With the data of the tomography, 3D graphics were drawn that enabled the statistical survey and analysis of clusters of the results that allowed the localization and the dimensioning of the discontinuities that appeared as counting peaks in these graphics. It was revealed that the defective welding showed porosity of up to 39.28% of its volume, and the acceptable size crack must be less than 1 mm based on ASME-B31.3, showing the viability of the tomography for this type of nondestructive analysis.
DOI: 10.6084/m9.figshare.11453043
title: The formative identity of Mathematics Teachers in rural schools

description: Abstract: This study aims to establish a holistic understanding about the formative identity of teachers who will teach mathematics in rural education contexts by addressing aspects of the constitution of this identity within the scope of the Degree in Education in the Countryside, recognized for preparing educators for Brazilian rural areas. As for the method, we have used the procedures of Discursive Textual Analysis, and the corpus of analysis consisted of documents and other materials produced on the subject that steer the education of these teachers. The results categorize the constitution of this identity based on four specific factors: formative (or institutional), contextual, mathematical and sociopolitical factors, the last one being the one with the greatest prominence and impact on identity. It is, therefore, an identity which is not only pedagogical and restricted to the school environment, but strongly integrated to the political and social issues related to the field, where the interconnections with academic mathematical knowledge are sought.
DOI: 10.6084/m9.figshare.11453046.v1
title: Quantification of Discontinuities in Welded Joints Using Gamma Tomography

description: Gamma tomography was used in this work to evaluate the recurrent defects in welding processes in naval steel sheets. It was used a first-generation equipment consisting of a source of Cesium-137, with activity of the order of 200 mCi, coupled to a Thallium-doped Sodium Iodide detector, NaI (Tl). For the study, specimens were produced in ASTM A131-AH36 steel sheets with 13.7 mm thickness; all welded by Metal Active Gas process. One reference sample was fabricated, with no macroscopically measurable defects and another welded under wind conditions producing a weld bead with different types of discontinuities. The microstructural characterization of welded joints made possible a qualitative evaluation between defective joints, in relation to the joint without defects. With the data of the tomography, 3D graphics were drawn that enabled the statistical survey and analysis of clusters of the results that allowed the localization and the dimensioning of the discontinuities that appeared as counting peaks in these graphics. It was revealed that the defective welding showed porosity of up to 39.28% of its volume, and the acceptable size crack must be less than 1 mm based on ASME-B31.3, showing the viability of the tomography for this type of nondestructive analysis.
DOI: 10.6084/m9.figshare.11453040
title: Behavioral health risk profiles of physical education undergraduates

description: Abstract Aims: To analyze the prevalence of risky behaviors among physical education undergraduates; to determine prevalence of risk factors for non-communicable chronic diseases (NCCD) among university, and; to determine the association between healthy life habits and physical activity. Method: A cross-sectional study with 903 undergraduate Physical Education students. The study used a self-administered questionnaire on health-related life habits. All questions were obtained from the Surveillance of Risk and Protection Factors for Chronic Diseases through Telephone Interviews. Logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (95% CI). Results: Of the 903 students, 57.4% were women, 67.6% were between 20-29 years of age, 68.7% consumed alcohol, 28.5% did not do physical activity, and 33.2% were overweight. Regarding the eating habits considered a risk for NCCD, women exhibited more risk factors than men, whereas 41.1% drank more full-fat milk (p = 0.01) and 31.8% ate more fatty meats, while men drank more soda (p &lt; 0.01). Physically active students consumed more fruits (p &lt; 0.01) and salads (p = 0.01) and drank less soda (p &lt; 0.01). The physically inactive students had a high prevalence of getting diabetes (p &lt; 0.01) and of suffering from hypertension (p = 0.01) and high cholesterol (p &lt; 0.01). Conclusions: University students in our study had unhealthy lifestyles. There is an urgent need for both a formulation and implementation of public health policies to promote health and decrease risk factors for NCCD.
DOI: 10.6084/m9.figshare.11453043.v1
title: The formative identity of Mathematics Teachers in rural schools

description: Abstract: This study aims to establish a holistic understanding about the formative identity of teachers who will teach mathematics in rural education contexts by addressing aspects of the constitution of this identity within the scope of the Degree in Education in the Countryside, recognized for preparing educators for Brazilian rural areas. As for the method, we have used the procedures of Discursive Textual Analysis, and the corpus of analysis consisted of documents and other materials produced on the subject that steer the education of these teachers. The results categorize the constitution of this identity based on four specific factors: formative (or institutional), contextual, mathematical and sociopolitical factors, the last one being the one with the greatest prominence and impact on identity. It is, therefore, an identity which is not only pedagogical and restricted to the school environment, but strongly integrated to the political and social issues related to the field, where the interconnections with academic mathematical knowledge are sought.
DOI: 10.6084/m9.figshare.11453037
title: Yield, antioxidant activity and shelf-life of cauliflower inflorescences under drought stress and foliar spraying of selenium

description: ABSTRACT The ability of antioxidant compounds in vegetables to prevent disease is important for the pharmaceutical and food industries. In addition, water stress can enhance the existing antioxidant capacity of plants. As such, this study aimed to assess the effect of different irrigation depths and selenium application on the postharvest characteristics of cauliflower. A randomized block design was used in a 3 x 2 factorial scheme, with four repetitions. The first factor consisted of three irrigation depths with regulated deficit irrigation (RDI): severe (50% ETc) and moderate RDI (75% ETc) and complete irrigation (100% ETc), performed after inflorescence initiation, and the second of foliar spraying of selenium (with and without the element). Selenium application increased cauliflower yield under moderate RDI and no water/drought stress. Moderate RDI was the most effective strategy for maintaining yield and increasing the antioxidant capacity and phenolic compound content of cauliflower. Foliar spraying of selenium raised total polyphenol content under drought stress. Severe RDI extended the shelf life of cauliflower florets.
DOI: 10.6084/m9.figshare.11453040.v1
title: Behavioral health risk profiles of physical education undergraduates

description: Abstract Aims: To analyze the prevalence of risky behaviors among physical education undergraduates; to determine prevalence of risk factors for non-communicable chronic diseases (NCCD) among university, and; to determine the association between healthy life habits and physical activity. Method: A cross-sectional study with 903 undergraduate Physical Education students. The study used a self-administered questionnaire on health-related life habits. All questions were obtained from the Surveillance of Risk and Protection Factors for Chronic Diseases through Telephone Interviews. Logistic regression was used to estimate odds ratios (OR) and 95% confidence intervals (95% CI). Results: Of the 903 students, 57.4% were women, 67.6% were between 20-29 years of age, 68.7% consumed alcohol, 28.5% did not do physical activity, and 33.2% were overweight. Regarding the eating habits considered a risk for NCCD, women exhibited more risk factors than men, whereas 41.1% drank more full-fat milk (p = 0.01) and 31.8% ate more fatty meats, while men drank more soda (p &lt; 0.01). Physically active students consumed more fruits (p &lt; 0.01) and salads (p = 0.01) and drank less soda (p &lt; 0.01). The physically inactive students had a high prevalence of getting diabetes (p &lt; 0.01) and of suffering from hypertension (p = 0.01) and high cholesterol (p &lt; 0.01). Conclusions: University students in our study had unhealthy lifestyles. There is an urgent need for both a formulation and implementation of public health policies to promote health and decrease risk factors for NCCD.
DOI: 10.6084/m9.figshare.11453034
title: Atomic force microscopy evidences of bacterial cell damage caused by propolis extracts on E. coli and S. aureus

description: Abstract The interaction of the aqueous extract of green propolis with the bacterial envelope was investigated using atomic force microscopy on E. coli and S. aureus, as Gram-negative and Gram-positive model microorganisms. The bacteria were incubated in the extracts with variable proportions of water/ethanol, i.e., in different concentrations of total phenolic and flavonoids, for 4 and 12 hours. All extracts exhibited antibacterial action with higher activity (lower MIC) for full ethanolic extract (100% alcohol) against both strains, what was attributed to a synergistic interaction of ethanol and phenolic compounds presented in greater concentration in this extract. According to AFM analysis, it was evidenced the propolis main mechanism of action as rupture and lysis of bacterial cells. Changes in bacterial morphology following treatment indicate membrane imbalances with the internal contents leaking out accompanied by cell swelling, due to possible water uptake through cell lysis. The intensity of such damage was found to be time and specie dependent.
DOI: 10.6084/m9.figshare.11453034.v1
title: Atomic force microscopy evidences of bacterial cell damage caused by propolis extracts on E. coli and S. aureus

description: Abstract The interaction of the aqueous extract of green propolis with the bacterial envelope was investigated using atomic force microscopy on E. coli and S. aureus, as Gram-negative and Gram-positive model microorganisms. The bacteria were incubated in the extracts with variable proportions of water/ethanol, i.e., in different concentrations of total phenolic and flavonoids, for 4 and 12 hours. All extracts exhibited antibacterial action with higher activity (lower MIC) for full ethanolic extract (100% alcohol) against both strains, what was attributed to a synergistic interaction of ethanol and phenolic compounds presented in greater concentration in this extract. According to AFM analysis, it was evidenced the propolis main mechanism of action as rupture and lysis of bacterial cells. Changes in bacterial morphology following treatment indicate membrane imbalances with the internal contents leaking out accompanied by cell swelling, due to possible water uptake through cell lysis. The intensity of such damage was found to be time and specie dependent.
DOI: 10.6084/m9.figshare.11453037.v1
title: Yield, antioxidant activity and shelf-life of cauliflower inflorescences under drought stress and foliar spraying of selenium

description: ABSTRACT The ability of antioxidant compounds in vegetables to prevent disease is important for the pharmaceutical and food industries. In addition, water stress can enhance the existing antioxidant capacity of plants. As such, this study aimed to assess the effect of different irrigation depths and selenium application on the postharvest characteristics of cauliflower. A randomized block design was used in a 3 x 2 factorial scheme, with four repetitions. The first factor consisted of three irrigation depths with regulated deficit irrigation (RDI): severe (50% ETc) and moderate RDI (75% ETc) and complete irrigation (100% ETc), performed after inflorescence initiation, and the second of foliar spraying of selenium (with and without the element). Selenium application increased cauliflower yield under moderate RDI and no water/drought stress. Moderate RDI was the most effective strategy for maintaining yield and increasing the antioxidant capacity and phenolic compound content of cauliflower. Foliar spraying of selenium raised total polyphenol content under drought stress. Severe RDI extended the shelf life of cauliflower florets.
DOI: 10.6084/m9.figshare.11453028
title: Adorno’s concepts of education and half-education in the analysis of the course completion works on socio-scientific issues, in a Pedagogy Program

description: Abstract: This study addresses the critical education of teachers in Science teaching and analyzes challenges and formative potentials of the Course Completion Work (CCW) done by future educators, from the perspective of Education, through socio-scientific issues. It also seeks to stimulate and promote, during this process, the subjectivity, creativity and authorship of the subjects involved. Based on Adorno’s theoretical concepts, and data obtained through field notes and class recordings, three dimensions were created: the half-education, transition and education dimensions. We conclude that education from the perspective of socio-scientific issues contributed to critical education in Nature Sciences to educators in training, both to act in teaching as well as in the educational process of producing the CCW. We believe that this research also brings contributions to explain the construction of autonomy, creativity and appreciation of subjectivity in the search for authorship in academic work.
DOI: 10.6084/m9.figshare.11453028.v1
title: Adorno’s concepts of education and half-education in the analysis of the course completion works on socio-scientific issues, in a Pedagogy Program

description: Abstract: This study addresses the critical education of teachers in Science teaching and analyzes challenges and formative potentials of the Course Completion Work (CCW) done by future educators, from the perspective of Education, through socio-scientific issues. It also seeks to stimulate and promote, during this process, the subjectivity, creativity and authorship of the subjects involved. Based on Adorno’s theoretical concepts, and data obtained through field notes and class recordings, three dimensions were created: the half-education, transition and education dimensions. We conclude that education from the perspective of socio-scientific issues contributed to critical education in Nature Sciences to educators in training, both to act in teaching as well as in the educational process of producing the CCW. We believe that this research also brings contributions to explain the construction of autonomy, creativity and appreciation of subjectivity in the search for authorship in academic work.
DOI: 10.6084/m9.figshare.11453013
title: BARIATRIC SURGERY IN BRAZILIAN PUBLIC HEALTH SYSTEM: THE GOOD, THE BAD AND THE UGLY, OR A LONG WAY TO GO. YELLOW SIGN!

description: ABSTRACT Background: In Brazil, there has been a significant increase in obesity rates in all age groups. Data from 2017 show that obesity affects 19% of the population. Due to the magnitude of the problem, public health policies have aimed to prevent complications related to obesity by increasing the offerfor bariatric surgeries. Aim: To analyze the current status of bariatric surgery performed in the Brazilian public health system, including data from macroregions and also the effect of digestive surgery training on the number of procedures. Methods: The database of the public health registry (DATASUS) was assessedbetween 2008 and 2018 for descriptive analysis of data and evaluation of the selected parameters. The main surgical techniques, comorbidities, mortality and the costs profile of the system were evaluated. Results: There was a 339% increase in the number of bariatric surgeries in the period evaluated. Gastric bypass was performed in 94% of cases whereas sleeve in 2.4%. Other techniques were used in 3.6%. There were discrepancies in the number of surgeries performed in different regions of the country. Conclusion: There was a considerable advance in the number of bariatric surgeries performed by the public health system between 2008 and 2018. However, there is a need to increase the offer of this service and alsospecialized training, as well as a correction in the distribution of these procedures in the national territory to achieve integrality among its users.
DOI: 10.6084/m9.figshare.11453016
title: MAGNETIC RESONANCE CHOLANGIOPANCREATOGRAPHY (MRCP) VERSUS ENDOSONOGRAPHY-GUIDED FINE NEEDLE ASPIRATION (EUS-FNA) FOR DIAGNOSIS AND FOLLOW-UP OF PANCREATIC INTRADUCTAL PAPILLARY MUCINOUS NEOPLASMS

description: ABSTRACT Background: Intraductal papillary mucinous tumor (IPMN) are being diagnosed with increasing frequency. Computerized tomography scanning is commonly used as the primary imaging modality before surgery nonetheless magnetic resonance cholangiopancreatography (MRCP) provides better characterization. Endosonography-guided fine needle aspiration (EUS-FNA) has emerged as a way to reach pathological diagnose. Aim: To compare results of both methods with surgical pathology findings for classification of IPMN. Methods: Thirty-six patients submitted to surgical resection with preoperative suspect of IPMN were submitted preoperatively to MRCP and EUS-FNA. Images obtained were analyzed according to a classification determined for each method. ROC curve was used for statistical analysis, that compared the images tests with the purpose of finding the best method for diagnosis and classification of IPMN. Results: Sixteen patients underwent pancreatoduodenectomy, 16 to subtotal pancreatectomy and only four laparotomy. Pathological diagnosis was IPMN (n=33) and pancreatic intraepithelial neoplasia type 2 (n=3). Twenty-nine revealed non-invasive neoplasia and invasive form in four patients. MRCP and EUS-FNA have correctly diagnosed and classified (type of IPMN), in 62.5% and 83.3% (p=0.811), the affected segment location in 69% and 92% (p=0.638) and identification of nodules and/or vegetation presence in 45% and 90% (p=0.5). Regarding to histopathological diagnosis by EUS-FNA the sensitivity was 83.3%; specificity was 100%; positive predictive value was 100%; negative predictive value was 33.3% and accuracy was 91.7%. Conclusions: There was no significant difference in the diagnosis of IPMN. However, EUS-FNA showed better absolute results than MRCP to identify nodule and/or vegetation.
DOI: 10.6084/m9.figshare.11453013.v1
title: BARIATRIC SURGERY IN BRAZILIAN PUBLIC HEALTH SYSTEM: THE GOOD, THE BAD AND THE UGLY, OR A LONG WAY TO GO. YELLOW SIGN!

description: ABSTRACT Background: In Brazil, there has been a significant increase in obesity rates in all age groups. Data from 2017 show that obesity affects 19% of the population. Due to the magnitude of the problem, public health policies have aimed to prevent complications related to obesity by increasing the offerfor bariatric surgeries. Aim: To analyze the current status of bariatric surgery performed in the Brazilian public health system, including data from macroregions and also the effect of digestive surgery training on the number of procedures. Methods: The database of the public health registry (DATASUS) was assessedbetween 2008 and 2018 for descriptive analysis of data and evaluation of the selected parameters. The main surgical techniques, comorbidities, mortality and the costs profile of the system were evaluated. Results: There was a 339% increase in the number of bariatric surgeries in the period evaluated. Gastric bypass was performed in 94% of cases whereas sleeve in 2.4%. Other techniques were used in 3.6%. There were discrepancies in the number of surgeries performed in different regions of the country. Conclusion: There was a considerable advance in the number of bariatric surgeries performed by the public health system between 2008 and 2018. However, there is a need to increase the offer of this service and alsospecialized training, as well as a correction in the distribution of these procedures in the national territory to achieve integrality among its users.