cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6318500
title: Maternal hypothyroxinemia in the first trimester of gestation and association with obstetric and neonatal outcomes and iron deficiency: a prospective Brazilian study

description: ABSTRACT Objective: To evaluate the association of isolated hypothyroxinemia in the first trimester with obstetric and neonatal outcomes and iron deficiency. Subjects and methods: The study was prospective. Women who had become pregnant spontaneously were initially selected. Next, anti-thyroid peroxidase antibodies (TPOAb), free T4 (FT4), total T4 (TT4), TSH, and ferritin were measured. TPOAb-positive women were excluded. The final sample consisted of 596 women with serum TSH between 0.1 and 2.5 mIU/l. Hypothyroxinemia was defined as FT4 &lt; 0.86 ng/dL and &lt; 0.92 ng/dL, corresponding to the 5th and 10th percentiles, respectively, and TT4 &lt; 7.8 ng/dL. None of the pregnant women was treated with levothyroxine until the end of pregnancy. Results: The women ranged in age from 18 to 36 years, with a median gestation of 9 weeks. T4 levels were not correlated with BMI or maternal TSH. Isolated hypothyroxinemia was observed in 4.3% (FT4 &lt; 0.86 ng/dL), 9% (FT4 &lt; 0.92 ng/dL), and 7% (TT4 &lt; 7.8 ng/dL) of the pregnant women. The frequencies of obstetric and neonatal outcomes were similar in women with versus without hypothyroxinemia. In women without iron deficiency, 8.4%, 3.9%, and 6.5% had FT4 &lt; 0.92 ng/dl, FT4 &lt; 0.86 ng/dL and TT4 &lt; 7.8 ng/dL, respectively. These frequencies of hypothyroxinemia were significantly higher among women with iron deficiency (20.7%, 14.8% and 17.2%, respectively). Conclusions: This prospective Brazilian study found no association between isolated hypothyroxinemia in the first trimester of gestation and obstetric or neonatal outcomes, but an association was demonstrated with iron deficiency.
DOI: 10.6084/m9.figshare.6318500.v1
title: Maternal hypothyroxinemia in the first trimester of gestation and association with obstetric and neonatal outcomes and iron deficiency: a prospective Brazilian study

description: ABSTRACT Objective: To evaluate the association of isolated hypothyroxinemia in the first trimester with obstetric and neonatal outcomes and iron deficiency. Subjects and methods: The study was prospective. Women who had become pregnant spontaneously were initially selected. Next, anti-thyroid peroxidase antibodies (TPOAb), free T4 (FT4), total T4 (TT4), TSH, and ferritin were measured. TPOAb-positive women were excluded. The final sample consisted of 596 women with serum TSH between 0.1 and 2.5 mIU/l. Hypothyroxinemia was defined as FT4 &lt; 0.86 ng/dL and &lt; 0.92 ng/dL, corresponding to the 5th and 10th percentiles, respectively, and TT4 &lt; 7.8 ng/dL. None of the pregnant women was treated with levothyroxine until the end of pregnancy. Results: The women ranged in age from 18 to 36 years, with a median gestation of 9 weeks. T4 levels were not correlated with BMI or maternal TSH. Isolated hypothyroxinemia was observed in 4.3% (FT4 &lt; 0.86 ng/dL), 9% (FT4 &lt; 0.92 ng/dL), and 7% (TT4 &lt; 7.8 ng/dL) of the pregnant women. The frequencies of obstetric and neonatal outcomes were similar in women with versus without hypothyroxinemia. In women without iron deficiency, 8.4%, 3.9%, and 6.5% had FT4 &lt; 0.92 ng/dl, FT4 &lt; 0.86 ng/dL and TT4 &lt; 7.8 ng/dL, respectively. These frequencies of hypothyroxinemia were significantly higher among women with iron deficiency (20.7%, 14.8% and 17.2%, respectively). Conclusions: This prospective Brazilian study found no association between isolated hypothyroxinemia in the first trimester of gestation and obstetric or neonatal outcomes, but an association was demonstrated with iron deficiency.
DOI: 10.6084/m9.figshare.6318497
title: The inverted pendulum under different perspectives

description: Abstract Three different explanations for the phenomenon of inverted oscillation of a pendulum with vertically forced pivot are presented. Two of these approaches are present in the literature and a compilation of results have been presented, while a third one aims to stimulate students to associate mathematical tools with the description of the observed physical phenomenon, searching for a quantification, even approximated. The possibility of separating into different time scales of a single phenomenon feasible in the classroom becomes very clear, and the utility and limitations of this type of description are exposed. At the end of the presentation of the different explanations some numerical results are compared with the third approach, bringing the current reality of scientific research: computational simulations. It is an unparalleled opportunity for students to come in contact with diverse mathematical tools with physical intuition guiding their applications.
DOI: 10.6084/m9.figshare.6318494
title: Jabuticaba skin extracts: phenolic compounds and antibacterial activity

description: Abstract The phenolic compounds from various extracts of jabuticaba skin powder (JSP) were characterized in this study, and the antibacterial activity assessed. The phenolic compounds were extracted from the JSP using four methods: a) acetone extraction - 1 g JSP: 10 mL 70% acetone, resting for 2 hours; b) aqueous extract - 1 g JSP: 15 mL water, under agitation; c) ethanolic extract - 1 g JSP: 15 mL acidified ethanol, under agitation; and d) methanolic extract - 1 g JSP: 50 mL 50% methanol, under reflux. The antibacterial activity was evaluated by the agar diffusion assay, using Escherichia coli ATCC 11229, Salmonella choleraesuis ATCC 6539, Pseudomonas aeruginosa ATCC 15442, Staphylococcus aureus ATCC 6538 and Listeria monocytogenes ATCC 19117. The ethanolic and methanolic extracts showed the highest levels of phenolic compounds, especially of cyanidin chloride, catechin and epicatechin. The extracts did not inhibit the growth of Escherichia coli and Salmonella choleraesuis, but inhibited 30% of the growth of Pseudomonas aeruginosa with an extract concentration of 250 µg mL-1. Against Staphylococcus aureus and Listeria monocytogenes the highest inhibitory effect observed was 41.8% for the ethanolic extract, followed by 36% inhibition by the methanolic extract, thus revealing the potential of these extracts as possible alternatives for use in the food and/or pharmaceutical industries.
DOI: 10.6084/m9.figshare.6318497.v1
title: The inverted pendulum under different perspectives

description: Abstract Three different explanations for the phenomenon of inverted oscillation of a pendulum with vertically forced pivot are presented. Two of these approaches are present in the literature and a compilation of results have been presented, while a third one aims to stimulate students to associate mathematical tools with the description of the observed physical phenomenon, searching for a quantification, even approximated. The possibility of separating into different time scales of a single phenomenon feasible in the classroom becomes very clear, and the utility and limitations of this type of description are exposed. At the end of the presentation of the different explanations some numerical results are compared with the third approach, bringing the current reality of scientific research: computational simulations. It is an unparalleled opportunity for students to come in contact with diverse mathematical tools with physical intuition guiding their applications.
DOI: 10.6084/m9.figshare.6318494.v1
title: Jabuticaba skin extracts: phenolic compounds and antibacterial activity

description: Abstract The phenolic compounds from various extracts of jabuticaba skin powder (JSP) were characterized in this study, and the antibacterial activity assessed. The phenolic compounds were extracted from the JSP using four methods: a) acetone extraction - 1 g JSP: 10 mL 70% acetone, resting for 2 hours; b) aqueous extract - 1 g JSP: 15 mL water, under agitation; c) ethanolic extract - 1 g JSP: 15 mL acidified ethanol, under agitation; and d) methanolic extract - 1 g JSP: 50 mL 50% methanol, under reflux. The antibacterial activity was evaluated by the agar diffusion assay, using Escherichia coli ATCC 11229, Salmonella choleraesuis ATCC 6539, Pseudomonas aeruginosa ATCC 15442, Staphylococcus aureus ATCC 6538 and Listeria monocytogenes ATCC 19117. The ethanolic and methanolic extracts showed the highest levels of phenolic compounds, especially of cyanidin chloride, catechin and epicatechin. The extracts did not inhibit the growth of Escherichia coli and Salmonella choleraesuis, but inhibited 30% of the growth of Pseudomonas aeruginosa with an extract concentration of 250 µg mL-1. Against Staphylococcus aureus and Listeria monocytogenes the highest inhibitory effect observed was 41.8% for the ethanolic extract, followed by 36% inhibition by the methanolic extract, thus revealing the potential of these extracts as possible alternatives for use in the food and/or pharmaceutical industries.
DOI: 10.6084/m9.figshare.6318491
title: The violin bow

description: Abstract In this article a discussion will be made about some of the main aspects of the violin bow. A description of its historical evolution justifies the present geometrical shape and its structure is described in section which deals with the modern bow. The materials, those historically used and alternative possibilities, are the subject of a specific section. The final section deals with the physical properties of the bow and how it can be characterized by these properties, bringing a relationship between physical concepts and their application on the violin bow.
DOI: 10.6084/m9.figshare.6318491.v1
title: The violin bow

description: Abstract In this article a discussion will be made about some of the main aspects of the violin bow. A description of its historical evolution justifies the present geometrical shape and its structure is described in section which deals with the modern bow. The materials, those historically used and alternative possibilities, are the subject of a specific section. The final section deals with the physical properties of the bow and how it can be characterized by these properties, bringing a relationship between physical concepts and their application on the violin bow.
DOI: 10.6084/m9.figshare.6318482
title: Athlete’s heart in a Brazilian paralympic judo team. Case series study

description: ABSTRACT BACKGROUND: Athlete’s heart is a term describing the cardiovascular effects of long-term conditioning among highly trained athletes. It is a variation of normal standards. DESIGN AND SETTING: Case series study at the cardiology division of a public university hospital. METHODS: We studied 14 visually handicapped paralympic athletes (8 men) in the national judo team. They were 26.3 ± 6.4 years old, with body mass index 25 ± 14, and had been practicing judo for 9.2 ± 7.9 years. Clinical evaluations, electrocardiograms, exercise testing and echocardiograms were performed by independent observers. RESULTS: Signs of athlete’s heart were found in all athletes, comprising left ventricular hypertrophy (5 cases), sinus bradycardia (5), T-wave juvenile pattern (3), T wave juvenile pattern (3), left atrial hypertrophy (2) and increased left ventricular volume (9 cases; 62.22 ± 6.46 ml/m2). There were very strong correlations between left ventricular mass/body surface and endurance time (r: 0.91) and estimated peak oxygen uptake (r: 0.8). The correlations between left ventricular internal diastolic dimension and endurance time (r: 0.91) and estimated peak oxygen uptake (r: 0.8) were strong. Despite increased left ventricular dimensions (4 cases), atrial dimensions (1) and relative wall thickness (4), all athletes had normal left ventricular mass/body surface (89.98 ± 21.93 g/m²). The exercise testing was normal: exercise duration 706 ± 45 seconds and estimated peak oxygen uptake 62.70 ± 9.99 mlO2/min. CONCLUSIONS: Signs of athlete’s heart were seen frequently in the paralympic judo team. These demonstrated the presence of mild cardiac adaptations to training.
DOI: 10.6084/m9.figshare.6318482.v1
title: Athlete’s heart in a Brazilian paralympic judo team. Case series study

description: ABSTRACT BACKGROUND: Athlete’s heart is a term describing the cardiovascular effects of long-term conditioning among highly trained athletes. It is a variation of normal standards. DESIGN AND SETTING: Case series study at the cardiology division of a public university hospital. METHODS: We studied 14 visually handicapped paralympic athletes (8 men) in the national judo team. They were 26.3 ± 6.4 years old, with body mass index 25 ± 14, and had been practicing judo for 9.2 ± 7.9 years. Clinical evaluations, electrocardiograms, exercise testing and echocardiograms were performed by independent observers. RESULTS: Signs of athlete’s heart were found in all athletes, comprising left ventricular hypertrophy (5 cases), sinus bradycardia (5), T-wave juvenile pattern (3), T wave juvenile pattern (3), left atrial hypertrophy (2) and increased left ventricular volume (9 cases; 62.22 ± 6.46 ml/m2). There were very strong correlations between left ventricular mass/body surface and endurance time (r: 0.91) and estimated peak oxygen uptake (r: 0.8). The correlations between left ventricular internal diastolic dimension and endurance time (r: 0.91) and estimated peak oxygen uptake (r: 0.8) were strong. Despite increased left ventricular dimensions (4 cases), atrial dimensions (1) and relative wall thickness (4), all athletes had normal left ventricular mass/body surface (89.98 ± 21.93 g/m²). The exercise testing was normal: exercise duration 706 ± 45 seconds and estimated peak oxygen uptake 62.70 ± 9.99 mlO2/min. CONCLUSIONS: Signs of athlete’s heart were seen frequently in the paralympic judo team. These demonstrated the presence of mild cardiac adaptations to training.
DOI: 10.6084/m9.figshare.6318479
title: The influence of economic recessions on the entrepreneurial intent: a cross-country analysis of the subprime crises

description: Abstract The literature, although point variables including lack of public safety, unemployment, corruption and the level of education as factors that influence the increase of entrepreneurial intention, does not investigate the effect of such variables through the existence of the endogenous relationship between economic growth and entrepreneurial intention. The objective of this study is to verify whether the economic recession influences entrepreneurial intention. The sample consisted of 60 234 individuals from 37 countries in 2009. Our results show that in scenarios with major economic downturns, people say they are more conducive to engage in entrepreneurial activities. Such result suggests that individuals seek in the economic crisis for business opportunities that may be motivated, possibly, by entrepreneurship by necessity. These evidences indicate that research on entrepreneurial intention should consider the economic situation of the analyzed environment.
DOI: 10.6084/m9.figshare.6318479.v1
title: The influence of economic recessions on the entrepreneurial intent: a cross-country analysis of the subprime crises

description: Abstract The literature, although point variables including lack of public safety, unemployment, corruption and the level of education as factors that influence the increase of entrepreneurial intention, does not investigate the effect of such variables through the existence of the endogenous relationship between economic growth and entrepreneurial intention. The objective of this study is to verify whether the economic recession influences entrepreneurial intention. The sample consisted of 60 234 individuals from 37 countries in 2009. Our results show that in scenarios with major economic downturns, people say they are more conducive to engage in entrepreneurial activities. Such result suggests that individuals seek in the economic crisis for business opportunities that may be motivated, possibly, by entrepreneurship by necessity. These evidences indicate that research on entrepreneurial intention should consider the economic situation of the analyzed environment.
DOI: 10.6084/m9.figshare.6318476
title: Board games: gerotechnology in nursing care practice

description: ABSTRACT Objective: To create a board game as a form of gerotechnology to promote active and healthy aging. Method: This was a qualitative, convergent care study conducted with 32 older adults. Individual interviews, creativity and sensitivity techniques, group discussions, and participant observations guided by Paulo Freire’s theoretical framework of problematization were used to produce data. The participants and researchers assessed the entire production process at the end of the study, after the gerotechnology was implemented in the groups. French discourse analysis was adopted. Results: Patented under registration no. BR 1020160107725, the game was created as a technological product based on the discussions with older adults, considering the conceptions, knowledge and practices shared by them about aging. Final considerations: The gerotechnology implemented in clinical nursing practices functioned as a playful resource to exercise self-determination and independence among older adults, boosting memory, self-esteem, socialization processes, exchanging experiences and shared learning.
DOI: 10.6084/m9.figshare.6318476.v1
title: Board games: gerotechnology in nursing care practice

description: ABSTRACT Objective: To create a board game as a form of gerotechnology to promote active and healthy aging. Method: This was a qualitative, convergent care study conducted with 32 older adults. Individual interviews, creativity and sensitivity techniques, group discussions, and participant observations guided by Paulo Freire’s theoretical framework of problematization were used to produce data. The participants and researchers assessed the entire production process at the end of the study, after the gerotechnology was implemented in the groups. French discourse analysis was adopted. Results: Patented under registration no. BR 1020160107725, the game was created as a technological product based on the discussions with older adults, considering the conceptions, knowledge and practices shared by them about aging. Final considerations: The gerotechnology implemented in clinical nursing practices functioned as a playful resource to exercise self-determination and independence among older adults, boosting memory, self-esteem, socialization processes, exchanging experiences and shared learning.
DOI: 10.6084/m9.figshare.6318455
title: Base temperature for node emission and plastochron determination in tomato species and their hybrids

description: Abstract: The objective of this work was to estimate the base temperature for node emission and plastochron determination in wild species of tomato, in the Redenção cultivar, and in their respective interspecific F1 hybrids. The wild accessions Solanum pimpinellifolium AF 26970, Solanum galapagense LA-1401, Solanum peruvianum AF 19684, Solanum habrochaites var. hirsutum PI-127826, Solanum habrochaites var. glabratum PI-134417, and Solanum pennellii LA-716; the cultivar Redenção (Solanum lycopersicum); and their respective interspecific hybrids were evaluated, on the transplanting dates 12/22/2015, 2/12/2016, and 4/6/2016. The base temperature was estimated using the least mean squared error of the linear regression between the number of nodes and the accumulated thermal sum. The plastochron for the main stem and the first three lateral stems was estimated using the base temperature. The base temperature for node emission and plastochron determination varied from 4.5 to 14.8°C. The species S. habrochaites var. hirsutum accession PI-127826, S. habrochaites var. glabratum accession PI-134417, and their hybrids with the Redenção cultivar showed the lowest base temperatures and plastochron for the main stem, whereas the remaining wild species and interspecific hybrids had a base temperature near that of cultivated tomato. Wild species and interspecific hybrids of tomato show a great variation in base temperature for node emission and plastochron determination.
DOI: 10.6084/m9.figshare.6318455.v1
title: Base temperature for node emission and plastochron determination in tomato species and their hybrids

description: Abstract: The objective of this work was to estimate the base temperature for node emission and plastochron determination in wild species of tomato, in the Redenção cultivar, and in their respective interspecific F1 hybrids. The wild accessions Solanum pimpinellifolium AF 26970, Solanum galapagense LA-1401, Solanum peruvianum AF 19684, Solanum habrochaites var. hirsutum PI-127826, Solanum habrochaites var. glabratum PI-134417, and Solanum pennellii LA-716; the cultivar Redenção (Solanum lycopersicum); and their respective interspecific hybrids were evaluated, on the transplanting dates 12/22/2015, 2/12/2016, and 4/6/2016. The base temperature was estimated using the least mean squared error of the linear regression between the number of nodes and the accumulated thermal sum. The plastochron for the main stem and the first three lateral stems was estimated using the base temperature. The base temperature for node emission and plastochron determination varied from 4.5 to 14.8°C. The species S. habrochaites var. hirsutum accession PI-127826, S. habrochaites var. glabratum accession PI-134417, and their hybrids with the Redenção cultivar showed the lowest base temperatures and plastochron for the main stem, whereas the remaining wild species and interspecific hybrids had a base temperature near that of cultivated tomato. Wild species and interspecific hybrids of tomato show a great variation in base temperature for node emission and plastochron determination.
DOI: 10.6084/m9.figshare.6318452
title: Extruded upper first molar intrusion: Comparison between unilateral and bilateral miniscrew anchorage

description: ABSTRACT Objective: The aim of his study was to evaluate the stress on tooth and alveolar bone caused by orthodontic intrusion forces in a supraerupted upper molar, by using a three-dimensional Finite Element Method (FEM). Methods: A superior maxillary segment was modeled in the software SolidWorks 2010 (SolidWorks Corporation, Waltham, MA, USA) containing: cortical and cancellous bone, supraerupted first molar, periodontal tissue and orthodontic components. A finite element model has simulated intrusion forces of 4N onto a tooth, directed to different mini-screw locations. Three different intrusion mechanics vectors were simulated: anchoring on a buccal mini-implant; anchoring on a palatal mini-implant and the association of both anchorage systems. All analyses were performed considering the minimum principal stress and total deformation. Qualitative analyses exhibited stress distribution by color maps. Quantitative analysis was performed with a specific software for reading and solving numerical equations (ANSYS Workbench 14, Ansys, Canonsburg, Pennsylvania, USA). Results: Intrusion forces applied from both sides (buccal and palatal) resulted in a more homogeneous stress distribution; no high peak of stress was detected and it has allowed a vertical resultant movement. Buccal or palatal single-sided forces resulted in concentrated stress zones with higher values and tooth tipping to respective force side. Conclusion: Unilateral forces promoted higher stress in root apex and higher dental tipping. The bilateral forces promoted better distribution without evidence of dental tipping. Bilateral intrusion technique suggested lower probability of root apex resorption.