cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7974542
title: Accuracy of gestational age assessment in Brazilian Information System on Live Birth (SINASC): a population study

description: Abstract: The prevalence of preterm births has shown a growing trend in many countries, including developed ones. Studies in Brazil have shown that the Information System on Live Births (SINASC, in Portuguese), until 2010, underestimated the prevalence of preterm births, when compared with studies based on primary data. Starting in 2011, gestational age at birth has been calculated in SINASC according to the last menstrual period (LMP), when available. This study sought to evaluate the accuracy of the gestational age assessment using LMP, compared with two other estimates, and correlate it with birth weight. This is a population study with data from SINASC available from Brazilian Health Informatics Department between 2011 and 2015. Definitions of preterm birth, low birth weight and birth asphyxia were taken from the literature. Adequacy of birth weigh to gestational age was calculated based on Fenton and Intergrowth-21 curves. We compared weight means according to the presence or lack of preterm birth. gestational age assessment was based on LMP in 58.5% and 41.5% used another method. We found that the preterm proportion was 12% in the LMP group and 8.4% in the other method group, while low birth weight was 6.5% and 8.4%, respectively. Mean weight of preterm infants was higher in the LMP group. Use of LMP as a gestational age estimator overestimated the proportion of weight equal to or higher than 2,500g among preterm infants, which does not seem compatible with the expected distribution for this group. LMP favored “correction” of prematurity for the parameters that are comparable to those of primary data studies, though the distortions we found between gestational age and birth weigh may indicate that there are still problems with this estimator.
DOI: 10.6084/m9.figshare.7974548
title: Baroreflex sensitivity in frailty syndrome

description: Frailty is related to a decrease in the physiological reserves, which causes difficulties in maintaining homeostasis. An example of physiological mechanisms for cardiovascular homeostasis is the baroreflex. The aim of this study was to compare baroreflex among frail, prefrail, and nonfrail individuals, in supine and orthostatic positions. Community-dwelling older adults were evaluated and categorized into frail, prefrail, or nonfrail groups, according to frailty phenotype. The RR interval (RRi) and systolic blood pressure (SBP) series were recorded for 15 min in the supine and 15 min in the orthostatic positions. Mean and variance of RRi and SBP, and baroreflex evaluated by phase, gain (α), and coherence (K2) were determined. A two-way repeated measures ANOVA, with Tukey's post hoc, was applied for group, position, and their interaction effects. The significance level established was 5%. Prefrail and frail participants did not present a significant decrease in mean values of RRi after postural challenge (893.43 to 834.20 ms and 925.99 to 857.98 ms, respectively). Frail participants showed a reduction in RRi variance in supine to orthostatic (852.04 to 232.37 ms2). Prefrail and frail participants showed a decrease in K2 after postural change (0.69 to 0.52 and 0.54 to 0.34, respectively). Frail participants exhibited lower values of K2 (0.34) compared to nonfrail and prefrail participants (0.61 and 0.52, respectively). Baroreflex indicated the presence of decoupling between heart period and SBP in frail and prefrail. Thus, reduced K2 might be a marker of the frailty process.
DOI: 10.6084/m9.figshare.7974545
title: Territórios e alianças políticas do pós-ambientalismo

description: ABSTRACT The objective of this paper is to analyze the driving forces of deforestation in the context of the evolution of land use and land management policies, emphasizing their role in the recognition of political rights of minority social groups. The underlying causes of deforestation in the Amazon have always been correlated with social problems and the use of labor in conditions similar to slavery. Such dynamics involves different agents and causative factors embedded in a complex web of historical factors, political forces and economic cycles. This paper emphasizes some of the leading institutional factors that contribute to understanding the achievements of the social-environmental model by means of a case study in the rural settlement “Projeto Agroextrativista Praialta-Piranheira”, in Pará, Brazil. This analysis allowed us to conclude that the lack of institutional coherence is a structural aspect that hinders a better context-driven understanding of the territorial dynamics of Amazonia.
DOI: 10.6084/m9.figshare.7974551.v1
title: Effect of Sn Addition in the Microstructure Refinement and Corrosion Resistance of Cu-Zr-Al-Ag Alloy

description: In this paper, a composition of known high glass-forming ability, Cu42Zr42Al8Ag8 and a novel Cu42Zr42Al8Ag4Sn4, were produced by suction-casting. After rapid solidification of both alloys, X-ray diffraction patterns along with crystallite size estimation by Scherrer equation and scanning electron microscopy images revealed a refined microstructure, composed mainly by AlCu2Zr, CuZr2 and Cu10Zr7 phases. Transmission electron microscopy indicated the presence of small crystalline precipitates in the Cu42Zr42Al8Ag4Sn4 suction-casted sample. Polarization curves showed a higher passivation current in the Sn containing sample, suggesting a decrease in corrosion resistance.
DOI: 10.6084/m9.figshare.7974542.v1
title: Accuracy of gestational age assessment in Brazilian Information System on Live Birth (SINASC): a population study

description: Abstract: The prevalence of preterm births has shown a growing trend in many countries, including developed ones. Studies in Brazil have shown that the Information System on Live Births (SINASC, in Portuguese), until 2010, underestimated the prevalence of preterm births, when compared with studies based on primary data. Starting in 2011, gestational age at birth has been calculated in SINASC according to the last menstrual period (LMP), when available. This study sought to evaluate the accuracy of the gestational age assessment using LMP, compared with two other estimates, and correlate it with birth weight. This is a population study with data from SINASC available from Brazilian Health Informatics Department between 2011 and 2015. Definitions of preterm birth, low birth weight and birth asphyxia were taken from the literature. Adequacy of birth weigh to gestational age was calculated based on Fenton and Intergrowth-21 curves. We compared weight means according to the presence or lack of preterm birth. gestational age assessment was based on LMP in 58.5% and 41.5% used another method. We found that the preterm proportion was 12% in the LMP group and 8.4% in the other method group, while low birth weight was 6.5% and 8.4%, respectively. Mean weight of preterm infants was higher in the LMP group. Use of LMP as a gestational age estimator overestimated the proportion of weight equal to or higher than 2,500g among preterm infants, which does not seem compatible with the expected distribution for this group. LMP favored “correction” of prematurity for the parameters that are comparable to those of primary data studies, though the distortions we found between gestational age and birth weigh may indicate that there are still problems with this estimator.
DOI: 10.6084/m9.figshare.7974548.v1
title: Baroreflex sensitivity in frailty syndrome

description: Frailty is related to a decrease in the physiological reserves, which causes difficulties in maintaining homeostasis. An example of physiological mechanisms for cardiovascular homeostasis is the baroreflex. The aim of this study was to compare baroreflex among frail, prefrail, and nonfrail individuals, in supine and orthostatic positions. Community-dwelling older adults were evaluated and categorized into frail, prefrail, or nonfrail groups, according to frailty phenotype. The RR interval (RRi) and systolic blood pressure (SBP) series were recorded for 15 min in the supine and 15 min in the orthostatic positions. Mean and variance of RRi and SBP, and baroreflex evaluated by phase, gain (α), and coherence (K2) were determined. A two-way repeated measures ANOVA, with Tukey's post hoc, was applied for group, position, and their interaction effects. The significance level established was 5%. Prefrail and frail participants did not present a significant decrease in mean values of RRi after postural challenge (893.43 to 834.20 ms and 925.99 to 857.98 ms, respectively). Frail participants showed a reduction in RRi variance in supine to orthostatic (852.04 to 232.37 ms2). Prefrail and frail participants showed a decrease in K2 after postural change (0.69 to 0.52 and 0.54 to 0.34, respectively). Frail participants exhibited lower values of K2 (0.34) compared to nonfrail and prefrail participants (0.61 and 0.52, respectively). Baroreflex indicated the presence of decoupling between heart period and SBP in frail and prefrail. Thus, reduced K2 might be a marker of the frailty process.
DOI: 10.6084/m9.figshare.7974545.v1
title: Territórios e alianças políticas do pós-ambientalismo

description: ABSTRACT The objective of this paper is to analyze the driving forces of deforestation in the context of the evolution of land use and land management policies, emphasizing their role in the recognition of political rights of minority social groups. The underlying causes of deforestation in the Amazon have always been correlated with social problems and the use of labor in conditions similar to slavery. Such dynamics involves different agents and causative factors embedded in a complex web of historical factors, political forces and economic cycles. This paper emphasizes some of the leading institutional factors that contribute to understanding the achievements of the social-environmental model by means of a case study in the rural settlement “Projeto Agroextrativista Praialta-Piranheira”, in Pará, Brazil. This analysis allowed us to conclude that the lack of institutional coherence is a structural aspect that hinders a better context-driven understanding of the territorial dynamics of Amazonia.
DOI: 10.6084/m9.figshare.7974533
title: Innovation ecosystems and measures aimed at environmental sustainability: Cidade Pedra Branca case study

description: Abstract: The proposal described herein is aimed at technological innovation, with a focus on product sustainability. The object of this study was six companies from the innovation ecosystem Cidade Pedra Branca, which sought to identify socio-environmental actions that also have the goal of generating significant results in economic terms. We concluded that, in general, the companies in Cidade Pedra Branca are committed to achieving social, environmental, and economic sustainability.
DOI: 10.6084/m9.figshare.7974536
title: Longitudinal study of sports injuries in practitioners of aerobic gymnastics competition

description: ABSTRACT Introduction: Aerobic gymnastics, since its membership in the International Gymnastics Federation, has undergone changes in its regulations. Objective: To analyze the injuries found in Spanish aerobic gymnastics athletes during different editions of the Code of Points. Methods: A descriptive, longitudinal and compara-tive study was carried out on the epidemiology of injuries in aerobic gymnastics published during different editions of the Code of Points. Results: It highlights that the number of injuries decreased from 156 to 38 last year. This decline has been related to the restriction on the number of difficulties in the exercise and the number of elements to be performed on the floor. However, they have increased the number and value of the difficulties. Conclusions: Therefore, it is concluded that the changes made in the regulations are intended to safeguard the health of athletes and ensure that competition develops at its best artistic and technical aspect.
DOI: 10.6084/m9.figshare.7974539
title: Endurance training induces structural and morphoquantitative changes in rat vagus nerve

description: ABSTRACT Introduction: Many nervous system tissues and cells suffers positive changes when faced to exercise training. However, data on vagus nerve adaptation from exercise-induced study is absent. Objective: To analyze the effect of an endurance training on the vagus nerve morphology of rats. Methods: Wistar rats (6 months of age) were divided into two groups: control group (CG, n=8), and aerobic trained group (AT, n=8). AT was submitted to a treadmill training program of five times per week during 12 weeks. The maximum speed stipulated in the training protocol corresponded to 60% of the mean maximum intensity achieved by the group in the test of maximum effort. Results: Twelve weeks of treadmill training resulted in left ventricular hypertrophy in the AT group com-pared to CG. There was a significant increase in the area of both the myelinated and unmyelinated axons, and in the area of myelin sheath with training. The number of neurotubules and neurofilaments in myelinated fibers of aerobic trained group was significantly greater than CG (p≤0.05). Conclusion: Endurance training promoted significant increase in morphometric parameters of the vagus nerve in the same way it affect somatic nerves.
DOI: 10.6084/m9.figshare.7974533.v1
title: Innovation ecosystems and measures aimed at environmental sustainability: Cidade Pedra Branca case study

description: Abstract: The proposal described herein is aimed at technological innovation, with a focus on product sustainability. The object of this study was six companies from the innovation ecosystem Cidade Pedra Branca, which sought to identify socio-environmental actions that also have the goal of generating significant results in economic terms. We concluded that, in general, the companies in Cidade Pedra Branca are committed to achieving social, environmental, and economic sustainability.
DOI: 10.6084/m9.figshare.7974536.v1
title: Longitudinal study of sports injuries in practitioners of aerobic gymnastics competition

description: ABSTRACT Introduction: Aerobic gymnastics, since its membership in the International Gymnastics Federation, has undergone changes in its regulations. Objective: To analyze the injuries found in Spanish aerobic gymnastics athletes during different editions of the Code of Points. Methods: A descriptive, longitudinal and compara-tive study was carried out on the epidemiology of injuries in aerobic gymnastics published during different editions of the Code of Points. Results: It highlights that the number of injuries decreased from 156 to 38 last year. This decline has been related to the restriction on the number of difficulties in the exercise and the number of elements to be performed on the floor. However, they have increased the number and value of the difficulties. Conclusions: Therefore, it is concluded that the changes made in the regulations are intended to safeguard the health of athletes and ensure that competition develops at its best artistic and technical aspect.
DOI: 10.6084/m9.figshare.7974524
title: Effect of acute caffeine supplementation in biochemical response during endurance exercise in rats

description: ABSTRACT Introduction: Caffeine is presently the most consumed substance in the world and, associated with physical exercise, brings important achievements in performance. Objective: To investigate the biochemical effects of acute caffeine supplementation after endurance exercise in Wistar rats. Methods: Twenty-seven male Wistar rats have been used, weighing 357 ± 73 g, randomly distributed in three groups: 1) Control (without supplementa-tion and exercise), 2) Saline (saline+ exercise), 3) Caffeine (6 mg/kg caffeine + exercise). Supplements have been administered 50 minutes before the 60-minute swimming test. Immediately after swimming, the animals have been sacrificed for blood sampling and biopsy of liver and muscle tissue. The levels of blood glucose, triglycerides, serum lactate and concentrations of glycogen in liver and muscle have been analyzed. All results were expressed as mean ± SEM. The statistical analysis used was the ANOVA one way test, being considered statistically signi-ficant only P&lt;0.05. Results: Muscle glycogen and lactate did not differ between groups. Caffeine has preserved the levels of blood glucose and liver glycogen (P&lt;0.05). Caffeine has elevated the levels of plasma glycerol in 31.2% (P&lt;0.05), when compared to the group exercised without supplementation. Conclusion: The study reports that the use of pre-exercise caffeine promotes biochemical alterations that can improve metabolic efficiency during the endurance exercise.
DOI: 10.6084/m9.figshare.7974530
title: Influences of dietary crude protein and stocking density on growth performance and body measurements of ostrich chicks

description: Abstract: Thirty-six African Black ostrich chicks were used to investigate the effects of dietary crude protein (CP) levels (180, 210 and 240 g/kg), stocking density (4.5 and 3 m2/bird) and their interactions. A factorial arrangement was used to examine the impact of treatments on growth performance and body measurements of ostrich chicks during 2 to 10 weeks of the age. Results indicated that factors studied did not change growth performance traits. The highest value of protein efficiency ratio was observed in ostrich chicks fed diet contained 240 g/kg diet. Birds fed diet contained 240 g CP /kg diet and kept at stocking density of 3 m2 per bird had numerically the highest protein efficiency ratio. Shank girth and tibiotarsus length decreased with increasing dietary CP level. Stocking density did not change values of body measurements, except tibiotarsus length at 6 weeks of age, which increased in birds kept at the lower density than the higher. Body height at 10 weeks of age was significantly affected by the interactions between dietary CP and stocking density. In conclusion, results affirmed that ostrich chicks can grow on diets containing low levels of CP (180-210 g/kg). Our results provide a comprehensive set of morphometric data for ostrich chicks as affected by the factors studied.
DOI: 10.6084/m9.figshare.7974539.v1
title: Endurance training induces structural and morphoquantitative changes in rat vagus nerve

description: ABSTRACT Introduction: Many nervous system tissues and cells suffers positive changes when faced to exercise training. However, data on vagus nerve adaptation from exercise-induced study is absent. Objective: To analyze the effect of an endurance training on the vagus nerve morphology of rats. Methods: Wistar rats (6 months of age) were divided into two groups: control group (CG, n=8), and aerobic trained group (AT, n=8). AT was submitted to a treadmill training program of five times per week during 12 weeks. The maximum speed stipulated in the training protocol corresponded to 60% of the mean maximum intensity achieved by the group in the test of maximum effort. Results: Twelve weeks of treadmill training resulted in left ventricular hypertrophy in the AT group com-pared to CG. There was a significant increase in the area of both the myelinated and unmyelinated axons, and in the area of myelin sheath with training. The number of neurotubules and neurofilaments in myelinated fibers of aerobic trained group was significantly greater than CG (p≤0.05). Conclusion: Endurance training promoted significant increase in morphometric parameters of the vagus nerve in the same way it affect somatic nerves.
DOI: 10.6084/m9.figshare.7974521
title: Influence of food intake and use of supplements in performance of brazilian para-athletes

description: ABSTRACT Introduction: Weightlifters seek to increase strength in relation to body mass using resistance training and nutrition as performance-enhancing tools. Despite the benefits provided by adequate nutritional planning, many athletes make use of unsuitable strategies, manifested by worse body composition and sports performance. Objective: Analyzing energy and protein consumption and the use of nutritional supplements in para-athletes in order to assess the influence of dietary strategy on performance. Methods: Personal data, anthropometric measures, as well as information on eating behavior and the competition have been collected from 24 male paralympic weightlifters. Results: The amount of calories and macronutrient intake in food averaged 2,235.8 ± 694.92 kcal, 27 ± 11.55% proteins, 46 ± 8.17% carbohydrates and 27 ± 8.57% lipids. Of the athletes studied, 87.5% reported using dietary supplements. Athletes with higher body mass index (BMI) exhibited lower energy and relative protein intake, higher sum of skinfolds and similar performance to the other athletes under study. Conclusion: The strategy used by athletes with higher body mass index did not directly improve performance and had a negative influence on body composition. This fact is probably due to inadequate adjusting of supplementation and diet.
DOI: 10.6084/m9.figshare.7974518
title: Methods of aril removal and lightness conditions on seeds physiological quality of sour passion fruits

description: Abstract Passion fruits species presents a larger economic importance for in natura consumption and industry. The main way to propagate these species is by seeds; however, the aril presence and environmental conditions may inhibit the seeds germination. In this sense, the objective of this study was to evaluate the effect of aril removal methods and light conditions on P. edulis var. flavicarpa seeds quality and germination. There were used five methods to remove the seeds aril: (1) friction on steel mesh sieve for 5 minutes; (2) friction with coarse sand on steel mesh sieve for 5 minutes; (3) immersion in lime solution at 10% (w/v), for 30 minutes; (4) fermentation in sugar solution at 10% (w/v), during 48 hours; and (5) natural pulp fermentation, during five days. The seeds were submitted to germination test at darkness and lightness, as well as, to length seedlings and emergence test. Regardless the aril removal method, the germination percentage was lower at lightness than darkness highlighting the natural pulp fermentation treatment, which presented 86% of seeds germinated. On the other hand, the aril removal methods did not affect the seedlings emergence, with emergence percentages ranged from 88 to 94%.
DOI: 10.6084/m9.figshare.7974530.v1
title: Influences of dietary crude protein and stocking density on growth performance and body measurements of ostrich chicks

description: Abstract: Thirty-six African Black ostrich chicks were used to investigate the effects of dietary crude protein (CP) levels (180, 210 and 240 g/kg), stocking density (4.5 and 3 m2/bird) and their interactions. A factorial arrangement was used to examine the impact of treatments on growth performance and body measurements of ostrich chicks during 2 to 10 weeks of the age. Results indicated that factors studied did not change growth performance traits. The highest value of protein efficiency ratio was observed in ostrich chicks fed diet contained 240 g/kg diet. Birds fed diet contained 240 g CP /kg diet and kept at stocking density of 3 m2 per bird had numerically the highest protein efficiency ratio. Shank girth and tibiotarsus length decreased with increasing dietary CP level. Stocking density did not change values of body measurements, except tibiotarsus length at 6 weeks of age, which increased in birds kept at the lower density than the higher. Body height at 10 weeks of age was significantly affected by the interactions between dietary CP and stocking density. In conclusion, results affirmed that ostrich chicks can grow on diets containing low levels of CP (180-210 g/kg). Our results provide a comprehensive set of morphometric data for ostrich chicks as affected by the factors studied.