cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.9986237
title: Canonical correlation for morphoagronomic and bromatological traits in silage corn genotypes

description: ABSTRACT The aim of this study is to assess whether there is linear dependence between groups of morphoagronomic and bromatological traits in hybrid silage corn. Nineteen topcross hybrids and five checks were assessed in two different environments in Campos dos Goytacazes and Itaocara counties, Rio de Janeiro State, during the growing seasons 2013/2014. The study followed a randomized blocks design with four replicates. The phenotypic and canonical correlations between the groups of seven morphoagronomic and five bromatological traits were assessed. There is linear dependence between the group pairs of morphoagronomic, and bromatological variables. The morphoagronomic trait green mass yield can be adopted in indirect selection processes to indicate the increased bromatological quality of maize silage based on features such as crude protein, neutral detergent fiber, lignin, crude fat and mineral matter. Topcross hybrids UENF-2208 and UENF-2209 presented high potential for silage yield in the North and Northwest Regions.
DOI: 10.6084/m9.figshare.9986231
title: Analysis of Access to Academic Information among Medical Students under an Active Learning Methodology

description: ABSTRACT Access to academic information has become one of the pillars for the student’s role in the learning process, and it is strategic to analyze the behavior and management of available information resources pertinent to the training and excellence of future professionals. The objective of this research was to analyze the behavior reported by medical students of a higher education institution with active learning methodology regarding access to academic information, as well as opinions about the construction of academic knowledge during undergraduate training. A cross-sectional and analytical observational study was conducted with 274 students from the Pernambuco Health College Medical School in Recife, Pernambuco. A specific questionnaire was prepared and validated for the data collection, and subsequently analyzed descriptively using absolute and percentage frequencies for categorical variables and measurements. To evaluate the association between two categorical variables, Pearson’s Chi-square test and Fisher’s exact test were used. The research project was approved by the ethics committee and respected all ethical requirements. Among those surveyed, 52.8% used electronic media alone, while 37.7% indicated that they handled both electronic and print media and 9.4% cited print media alone. In relation to the forms of study with which the student most identifies, the options confirmed by the majority were “online books (PDF, Word, Epub, etc.)” and “paper books” (81.9% and 68,3%, respectively). Regarding questions about the use of electronic databases in their study routine, the majority (67.9%) responded positively to the statement; the most commonly cited databases included SciELO (86.7%), and PubMed (70.6%). When evaluating access to scientific information among medical students, it was seen that, although most students used electronic databases in their academic routine, more than half had not received training related to bibliographic research techniques; most had learned with practice. Almost all the students surveyed agree on the importance of evidence-based practice in academic routine, which is reported by more than half of the students who, when they do not seek information online, feel less up-to-date.
DOI: 10.6084/m9.figshare.9986234.v1
title: Respiratory distress syndrome: influence of management on the hemodynamic status of ≤ 32-week preterm infants in the first 24 hours of life

description: ABSTRACT Objective: To investigate the influence of respiratory distress syndrome management on clinical and echocardiographic parameters used for hemodynamic evaluation in ≤ 32- week newborns. Methods: Thirty-three ≤ 32-week newborns were prospectively evaluated and subjected to invasive mechanical ventilation. The need for exogenous surfactant and clinical and echocardiographic parameters in the first 24 hours of life was detailed in this group of patients. Results: The mean airway pressure was significantly higher in newborn infants who required inotropes [10.8 (8.8 - 23) cmH2O versus 9 (6.2 - 12) cmH2O; p = 0.04]. A negative correlation was found between the mean airway pressure and velocity-time integral of the pulmonary artery (r = -0.39; p = 0.026), right ventricular output (r = -0.43; p = 0.017) and measurements of the tricuspid annular plane excursion (r = -0.37; p = 0.036). A negative correlation was found between the number of doses of exogenous surfactant and the right ventricular output (r = -0.39; p = 0.028) and pulmonary artery velocity-time integral (r = -0.35; p = 0.043). Conclusion: In ≤ 32-week newborns under invasive mechanical ventilation, increases in the mean airway pressure and number of surfactant doses are correlated with the worsening of early cardiac function. Therefore, more aggressive management of respiratory distress syndrome may contribute to the hemodynamic instability of these patients.
DOI: 10.6084/m9.figshare.9986228.v1
title: An analysis of the services inflation persistence puzzle in Brazil

description: Abstract This article analyzes the so-called Services Inflation Persistence Puzzle in Brazil, for the period ranging from August 1999 to February 2017. As a benchmark, we also analyze the Brazilian Consumer Inflation (IPCA), non-durable, semi-durable and durable goods, as well as some items disaggregated from the basket of services. Structural break tests and ARFIMA models are used. Results show that, initially, services inflation persistence is higher than that found in goods inflation and IPCA. However, after structural breaks are accounted for, services inflation seems to be anti-persistent and stationary, indicating the existence of the Services Inflation Persistence Puzzle in Brazil. The same behavior applies to the main components of the service basket.
DOI: 10.6084/m9.figshare.9986222
title: Ultrasonographic evaluation of the common carotid intima-media complex in healthy and overweight/obese children

description: Abstract Background Obesity is a global epidemic, including among children. It is therefore necessary to identify cardiovascular changes in overweight/obese children as early as possible. Mode B ultrasonography of the common carotids can be used to precisely evaluate in real time early changes in the thickness of the intima-media complex (IMC), which can detect onset of the atherosclerosis process. Objectives This study compared IMC thickness between schoolchildren with and without overweight/obesity. Methods A sample of 59 children of both sexes, aged 7 to 10 years, were recruited from health centers in São Paulo, Brazil. Children were classified by z scores for body mass index (BMI) into two groups, with or without overweight/obesity. These groups were then compared in terms of IMC thickness. Results The groups were homogenous for age and sex. The mean IMC measurement in the group with overweight/obesity was 0.49 (± 0.07) mm, whereas in the group free from overweight/obesity it was 0.41 (± 0.05) mm (p &lt; 0.01). These differences were maintained when groups with and without overweight/obesity were compared separately by sex and for right and left sides. The coefficient for the correlation between IMC measurement and BMI z score was 0.61 (95% confidence interval = 0.42-0.75). Within the same nutritional status group, there were no differences between sexes or between right and left sides. Conclusions Intima-media thickness was greater among children with overweight/obesity and was directly proportional to BMI z score, denoting increased cardiovascular risk in this group.
DOI: 10.6084/m9.figshare.9986231.v1
title: Analysis of Access to Academic Information among Medical Students under an Active Learning Methodology

description: ABSTRACT Access to academic information has become one of the pillars for the student’s role in the learning process, and it is strategic to analyze the behavior and management of available information resources pertinent to the training and excellence of future professionals. The objective of this research was to analyze the behavior reported by medical students of a higher education institution with active learning methodology regarding access to academic information, as well as opinions about the construction of academic knowledge during undergraduate training. A cross-sectional and analytical observational study was conducted with 274 students from the Pernambuco Health College Medical School in Recife, Pernambuco. A specific questionnaire was prepared and validated for the data collection, and subsequently analyzed descriptively using absolute and percentage frequencies for categorical variables and measurements. To evaluate the association between two categorical variables, Pearson’s Chi-square test and Fisher’s exact test were used. The research project was approved by the ethics committee and respected all ethical requirements. Among those surveyed, 52.8% used electronic media alone, while 37.7% indicated that they handled both electronic and print media and 9.4% cited print media alone. In relation to the forms of study with which the student most identifies, the options confirmed by the majority were “online books (PDF, Word, Epub, etc.)” and “paper books” (81.9% and 68,3%, respectively). Regarding questions about the use of electronic databases in their study routine, the majority (67.9%) responded positively to the statement; the most commonly cited databases included SciELO (86.7%), and PubMed (70.6%). When evaluating access to scientific information among medical students, it was seen that, although most students used electronic databases in their academic routine, more than half had not received training related to bibliographic research techniques; most had learned with practice. Almost all the students surveyed agree on the importance of evidence-based practice in academic routine, which is reported by more than half of the students who, when they do not seek information online, feel less up-to-date.
DOI: 10.6084/m9.figshare.9986216
title: Yield and quality of densely cultivated onion cultivars as function of nitrogen fertilization

description: ABSTRACT Nitrogen exerts a marked influence on the yield and quality of the onion. The present work was developed from June to October 2016, aiming to evaluate the yield and quality of two cultivars of onion under a system densified as a function of nitrogen doses in Mossoró, RN, Brazil. A randomized block design was used in a 2 x 7 factorial scheme, with four repetitions, corresponding to two cultivars (IPA 11 and Rio das Antas) and seven nitrogen doses (0, 45, 90, 135, 180, 225 and 270 kg ha-1 of N), provided by fertigation, with four repetitions. The dose of 92 kg ha-1 of N provides the highest total and marketable yields of bulbs. Nitrogen fertilization increases the concentrations of N, chlorophyll a, b and total in the leaves of the onion, as well as the percentage of bulbs of classes 3 and 4 and the pungency, reducing the percentage of bulbs of class 2 and non-commercial. The doses of 108 and 82 kg ha-1 of N provide the highest rates of return for ‘IPA 11’ (R$ 2.07) and ‘Rio das Antas’ (R$ 2.41), respectively.
DOI: 10.6084/m9.figshare.9986216.v1
title: Yield and quality of densely cultivated onion cultivars as function of nitrogen fertilization

description: ABSTRACT Nitrogen exerts a marked influence on the yield and quality of the onion. The present work was developed from June to October 2016, aiming to evaluate the yield and quality of two cultivars of onion under a system densified as a function of nitrogen doses in Mossoró, RN, Brazil. A randomized block design was used in a 2 x 7 factorial scheme, with four repetitions, corresponding to two cultivars (IPA 11 and Rio das Antas) and seven nitrogen doses (0, 45, 90, 135, 180, 225 and 270 kg ha-1 of N), provided by fertigation, with four repetitions. The dose of 92 kg ha-1 of N provides the highest total and marketable yields of bulbs. Nitrogen fertilization increases the concentrations of N, chlorophyll a, b and total in the leaves of the onion, as well as the percentage of bulbs of classes 3 and 4 and the pungency, reducing the percentage of bulbs of class 2 and non-commercial. The doses of 108 and 82 kg ha-1 of N provide the highest rates of return for ‘IPA 11’ (R$ 2.07) and ‘Rio das Antas’ (R$ 2.41), respectively.
DOI: 10.6084/m9.figshare.9986222.v1
title: Ultrasonographic evaluation of the common carotid intima-media complex in healthy and overweight/obese children

description: Abstract Background Obesity is a global epidemic, including among children. It is therefore necessary to identify cardiovascular changes in overweight/obese children as early as possible. Mode B ultrasonography of the common carotids can be used to precisely evaluate in real time early changes in the thickness of the intima-media complex (IMC), which can detect onset of the atherosclerosis process. Objectives This study compared IMC thickness between schoolchildren with and without overweight/obesity. Methods A sample of 59 children of both sexes, aged 7 to 10 years, were recruited from health centers in São Paulo, Brazil. Children were classified by z scores for body mass index (BMI) into two groups, with or without overweight/obesity. These groups were then compared in terms of IMC thickness. Results The groups were homogenous for age and sex. The mean IMC measurement in the group with overweight/obesity was 0.49 (± 0.07) mm, whereas in the group free from overweight/obesity it was 0.41 (± 0.05) mm (p &lt; 0.01). These differences were maintained when groups with and without overweight/obesity were compared separately by sex and for right and left sides. The coefficient for the correlation between IMC measurement and BMI z score was 0.61 (95% confidence interval = 0.42-0.75). Within the same nutritional status group, there were no differences between sexes or between right and left sides. Conclusions Intima-media thickness was greater among children with overweight/obesity and was directly proportional to BMI z score, denoting increased cardiovascular risk in this group.
DOI: 10.6084/m9.figshare.9986213
title: Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery

description: ABSTRACT The use of Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) techniques can contribute to increase the accessibility, accuracy, and resolution of Digital Elevation Models (DEMs) used for soil erosion monitoring. This study aimed to evaluate the use of four DEMs obtained over a year to monitor erosion processes in an erosion-degraded area, with occurrence of rill and gully erosions, and its correlation with accumulated rainfall during the studied period. The DEMs of Geomorphic Change Detection (GCD) of horizontal and vertical resolutions of 0.10 and 0.06 m were obtained. It was possible to detect events of erosion and deposition volumes of the order of 2 m3, with a volumetric error of ∼50 %, in rills and gullies in the initial stage denominated R and GS-I, respectively. Events of the order of 100 m3, with a volumetric error around 14 % were found for advanced gullies, a segment denominated GS-II. In the three studied erosion situations, the deposition volume increased with the accumulated rainfall. The segments R and GS-I presented an inverse relationship between erosion volume and accumulated rainfall during the studied period. This behaviour can be explained by the dynamics of the deposition and erosion volumes during the erosion process. In the GS-II segment, erosion and deposition volumes were proportional and a direct relation with the cumulative rainfall over the studied period and a low percentage of volumetric error were found.
DOI: 10.6084/m9.figshare.9986207
title: Analysis of secularization in Brazil

description: Abstract This paper analyzes whether Brazil is experiencing a religious secularization process using data from Brazil Religion Survey conducted in 2007. Models of discrete choice are estimated to understand which individual attributes affect disaffiliation, disbelief and lack of religious practice, therefore confirming or disproving secularism hypotheses. Estimations confirm some hypotheses of the theory, for example, that having liberal opinions concerning moral and social issues is positively associated with secularism, and that lower income levels result in lower chances of disaffiliation. In addition, the profile of non-religious people, non-believers and those who do not practice religion is similar. Therefore, it is possible to affirm that there is secularization in Brazil.
DOI: 10.6084/m9.figshare.9986210
title: High Residual Platelet Reactivity during Aspirin Therapy in Patients with Non-St Segment Elevation Acute Coronary Syndrome: Comparison Between Initial and Late Phases

description: Abstract Background: High platelet reactivity (HPR) during therapy with acetylsalicylic acid (ASA) is a poor prognostic factor in acute coronary syndromes (ACS). The prevalence of HPR during ACS is greater than that reported in stable diseases. However, it is unclear whether this prevalence of HPR is a transient phenomenon or a characteristic of this high-risk population. Objective: The main objective is to compare the effects of ASA on platelet function in the initial and late phases of ACS in a single population. Secondary objectives are: correlation between the tests between themselves and the relationship between the tests and the variation of the inflammatory markers (C-reactive protein and interleukin-6). Methods: Seventy patients with non-ST segment elevation (NSTE) ACS in use of 100-200 mg of ASA per day for at least 7 days were prospectively studied. Platelet function was assessed in the first 48 hours and subsequently after 3 months using four methods: VerifyNow™ (VFN), whole blood platelet aggregation (WBPA) with arachidonic acid (AA) and collagen as agonists, and platelet function analyzer (PFA). The level of statistical significance considered was &lt; 0.05. Results: According to the more specific methods (WBPA with AA and VFN), the incidence of HPR was significantly higher in the early phase than in the late phase: WBPA with AA: 31% versus 13%, p = 0.015; VFN: 32% versus 16%, p = 0.049. The other methods tested, which were less specific for ASA, did not show significant differences between phases. The correlation between the methods was weak or moderate (r ranging from 0.3 to 0.5, p &lt; 0.05), and there were no significant associations between HPR and inflammatory markers. Conclusion: The prevalence of HPR during AAS therapy, assessed by specific methods for cyclooxygenase 1 (COX-1), is higher during the acute phase than in the late phase of NSTE ACS.
DOI: 10.6084/m9.figshare.9986204
title: Lipidogram and insulin sensitivity in Mangalarga Marchador mares

description: ABSTRACT Increased indicators of fat metabolites are found in Equine Metabolic Syndrome (EMS) subjects, although these parameters are not included in the EMS definition described in the literature and in its diagnosis. The objective of this study was to characterize dyslipidemia in obese insulin resistant mares. 18 mares were allocated in three groups according to body condition score (BCS) in a 1 to 9 scale. In the Ideal group there were animals with BCS 4.5 to 5.5 (n= 6), in the Overweight group, the BCS were 6 to 7 (n= 6), and in the Obese group (n= 6), BCS 7.5 to 9. Concentrate fasting blood samples were taken to determine triglycerides, total cholesterol, glucose, and insulin concentrations in plasma. Insulin sensitivity proxy (RISQI) and β-pancreatic secretion proxy (MIRG) were calculated from glucose and insulin data. The Obese group had higher triglyceride levels (P= 0.001), compared to other groups, and higher total cholesterol compared to the Ideal Group (P= 0.012). No differences in plasma glucose (P= 0.53), insulin (P= 0.10) concentrations and insulin sensitivity (RISQI: P= 0.463) were seen among groups. The Obese Group had a higher β-pancreatic secretion (MIRG: P= 0.048) compared to the Ideal Group. The increased BCS was related to the plasma fat metabolites a higher β-pancreatic secretion.
DOI: 10.6084/m9.figshare.9986213.v1
title: Assessing Water Erosion Processes in Degraded Area Using Unmanned Aerial Vehicle Imagery

description: ABSTRACT The use of Unmanned Aerial Vehicles (UAVs) and Structure from Motion (SfM) techniques can contribute to increase the accessibility, accuracy, and resolution of Digital Elevation Models (DEMs) used for soil erosion monitoring. This study aimed to evaluate the use of four DEMs obtained over a year to monitor erosion processes in an erosion-degraded area, with occurrence of rill and gully erosions, and its correlation with accumulated rainfall during the studied period. The DEMs of Geomorphic Change Detection (GCD) of horizontal and vertical resolutions of 0.10 and 0.06 m were obtained. It was possible to detect events of erosion and deposition volumes of the order of 2 m3, with a volumetric error of ∼50 %, in rills and gullies in the initial stage denominated R and GS-I, respectively. Events of the order of 100 m3, with a volumetric error around 14 % were found for advanced gullies, a segment denominated GS-II. In the three studied erosion situations, the deposition volume increased with the accumulated rainfall. The segments R and GS-I presented an inverse relationship between erosion volume and accumulated rainfall during the studied period. This behaviour can be explained by the dynamics of the deposition and erosion volumes during the erosion process. In the GS-II segment, erosion and deposition volumes were proportional and a direct relation with the cumulative rainfall over the studied period and a low percentage of volumetric error were found.
DOI: 10.6084/m9.figshare.9986198
title: EXERGAMES IN ADOLESCENTS: ASSOCIATED FACTORS AND POSSIBLE REDUCTION IN SEDENTARY TIME

description: ABSTRACT Objective: To describe the use of exergames, associated factors and to quantify the time attributed to the use of exergames within the time spent on video games in a sample of adolescents from Curitiba, Paraná, Brazil. Methods: This was a cross-sectional study that evaluated frequency and weekly volume of physical activities using the Physical Activity Questionnaire for Adolescents. Weekly frequency and daily time of use of exergames and videogames were self-reported. Mann-Whitney and Kruskal Wallis tests were used to compare the time spent playing exergames, and Poisson regression was used to test the associations (p&lt;0.05). Results: 495 adolescents were interviewed (51.3% girls), predominantly aged between 12 and 13 years (41.3%), under/normal weight (60.4%), medium socioeconomic status (39.8 %) and from public schools (69.3%). Most of the participants did not have video games in their bedroom (74.3%) and did not reach recommended levels of physical activity (55.5%). One in five adolescents used exergames (16.4%). Age (RP: 0.54; 95%CI 0.30-0.97, p=0.039) and having a console in the bedroom (RP: 1.89; 95%CI 1.27- 2.81, p=0.002) were associated with exergame use. Male sex (X_: 195.0; AIQ: 486.3; p=0.024) practice of leisure time physical activity (X_: 160.0; AIQ: 350.0; p=0.048) were associated with weekly volume of exergame use. Conclusions: Overall, less than two out of ten adolescents used exergames, and the use was higher among young adolescents and those who had a console in their bedrooms. Volume of use was higher among boys and those performing more than five hours of leisure time physical activity per week. In addition, a considerable part of the time devoted to the use of video games, was in fact, destined to the use of exergames.