cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.21310450
title: Epicardial Fat Volume Is Associated with Endothelial Dysfunction, but not with Coronary Calcification: From the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

description: Abstract Background The increase in epicardial fat volume (EFV) is related to coronary artery disease (CAD), independent of visceral or subcutaneous fat. The mechanism underlying this association is unclear. Coronary artery calcium (CAC) score and endothelial dysfunction are related to coronary events, but whether EFV is related to these markers needs further clarification. Objectives To evaluate the association between automatically measured EFV, cardiovascular risk factors, CAC, and endothelial function. Methods In 470 participants from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) with measures of EFV, CAC score and endothelial function, we performed multivariable models to evaluate the relation between cardiovascular risk factors and EFV (response variable), and between EFV (explanatory variable) and endothelial function variables or CAC score. Two-sided p &lt;0.05 was considered statistically significant. Results Mean age was 55 ± 8 years, 52.3% of patients were men. Mean EFV was 111mL (IQ 86-144), and the prevalence of CAC score=0 was 55%. In the multivariable analyses, increased EFV was related to female sex, older age, waist circumference, and triglycerides (p&lt;0.001 for all). Higher EFV was associated with worse endothelial function: as compared with the first quartile, the odds ratio for basal pulse amplitude were (q2=1.22, 95%CI 1.07-1.40; q3=1.50, 95%CI 1.30-1.74; q4=1.50, 95%CI 1.28-1.79) and for peripheral arterial tonometry ratio were (q2=0.87, 95%CI 0.81-0.95; q3=0.86, 95%CI 0.79-0.94; q4=0.80, 95%CI 0.73-0.89), but not with CAC score&gt;0. Conclusion Higher EFV was associated with impaired endothelial function, but not with CAC. The results suggest that EFV is related to the development of CAD through a pathway different from the CAC pathway, possibly through aggravation of endothelial dysfunction and microvascular disease.
DOI: 10.6084/m9.figshare.21310450.v1
title: Epicardial Fat Volume Is Associated with Endothelial Dysfunction, but not with Coronary Calcification: From the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil)

description: Abstract Background The increase in epicardial fat volume (EFV) is related to coronary artery disease (CAD), independent of visceral or subcutaneous fat. The mechanism underlying this association is unclear. Coronary artery calcium (CAC) score and endothelial dysfunction are related to coronary events, but whether EFV is related to these markers needs further clarification. Objectives To evaluate the association between automatically measured EFV, cardiovascular risk factors, CAC, and endothelial function. Methods In 470 participants from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) with measures of EFV, CAC score and endothelial function, we performed multivariable models to evaluate the relation between cardiovascular risk factors and EFV (response variable), and between EFV (explanatory variable) and endothelial function variables or CAC score. Two-sided p &lt;0.05 was considered statistically significant. Results Mean age was 55 ± 8 years, 52.3% of patients were men. Mean EFV was 111mL (IQ 86-144), and the prevalence of CAC score=0 was 55%. In the multivariable analyses, increased EFV was related to female sex, older age, waist circumference, and triglycerides (p&lt;0.001 for all). Higher EFV was associated with worse endothelial function: as compared with the first quartile, the odds ratio for basal pulse amplitude were (q2=1.22, 95%CI 1.07-1.40; q3=1.50, 95%CI 1.30-1.74; q4=1.50, 95%CI 1.28-1.79) and for peripheral arterial tonometry ratio were (q2=0.87, 95%CI 0.81-0.95; q3=0.86, 95%CI 0.79-0.94; q4=0.80, 95%CI 0.73-0.89), but not with CAC score&gt;0. Conclusion Higher EFV was associated with impaired endothelial function, but not with CAC. The results suggest that EFV is related to the development of CAD through a pathway different from the CAC pathway, possibly through aggravation of endothelial dysfunction and microvascular disease.
DOI: 10.6084/m9.figshare.21310458
title: Analysis of quantitative methods for geodiversity in Chapada Diamantina, Bahia, Brazil

description: Abstract: The concept of geodiversity has been developed by geoscientists since 1990 in different lines of research such as territorial and patrimonial planning, tourism and the dissemination of knowledge. However, little progress has been made in mapping and quantifying geodiversity. Thus, there are still gaps about the functionality of these graphics products. In order to contribute to these discussions, the aim of this research was to evaluate geodiversity quantification models in Chapada Diamantina National Park and municipality of Morro do Chapéu. The methods Serrano and Ruiz - Flaño and Pereira et al. were chosen for comparison. After choosing the criteria to compare as the choice of variables pertaining to each method, data processing was performed in a geographic information system. Maps with geodiversity indexes and frequency charts were generated. Finally, these products were analyzed using statistical methods and evaluated in the field. In both proposals for quantifying geodiversity, methodological limitations were found, which interfere with the purpose for which the index was created.
DOI: 10.6084/m9.figshare.21310458.v1
title: Analysis of quantitative methods for geodiversity in Chapada Diamantina, Bahia, Brazil

description: Abstract: The concept of geodiversity has been developed by geoscientists since 1990 in different lines of research such as territorial and patrimonial planning, tourism and the dissemination of knowledge. However, little progress has been made in mapping and quantifying geodiversity. Thus, there are still gaps about the functionality of these graphics products. In order to contribute to these discussions, the aim of this research was to evaluate geodiversity quantification models in Chapada Diamantina National Park and municipality of Morro do Chapéu. The methods Serrano and Ruiz - Flaño and Pereira et al. were chosen for comparison. After choosing the criteria to compare as the choice of variables pertaining to each method, data processing was performed in a geographic information system. Maps with geodiversity indexes and frequency charts were generated. Finally, these products were analyzed using statistical methods and evaluated in the field. In both proposals for quantifying geodiversity, methodological limitations were found, which interfere with the purpose for which the index was created.
DOI: 10.6084/m9.figshare.21310461
title: STUDENT ASSISTANCE POLICIES AND NON-TEACHING EDUCATORS AT THE FEDERAL INSTITUTES OF EDUCATION, SCIENCE AND TECHNOLOGY

description: ABSTRACT: This article aims to analyze the Student Assistance Policies (Paes) and the professionals involved in their implementation at the Federal Institutes of Education, Science and Technology (IF) from an educational perspective. To this end, the triangulation of a quantitative-qualitative approach was used to analyze the data obtained through documentary research. Information was obtained about the professionals and PAES of 31 institutes, in which the prediction of support services is under a universal or exclusively selective perspective. There are 2,782 assistants involved in Student Assistance (AE) to serve 473,897 students in the IF. There are a greater number, respectively, of student assistants, social workers, psychologists, and pedagogues. 25 Paes that explicitly provided for universalist programs or actions were identified. However, for such policies to be effective, the number of professionals must be sufficient to guarantee support services from a universal perspective. This aspect of action legitimizes, to Student Assistance professionals, their educating identity which needs to be incorporated by professionals in such a way that it is equally perceived by the academic community and effectively contributes to the development of the educational process.
DOI: 10.6084/m9.figshare.21310461.v1
title: STUDENT ASSISTANCE POLICIES AND NON-TEACHING EDUCATORS AT THE FEDERAL INSTITUTES OF EDUCATION, SCIENCE AND TECHNOLOGY

description: ABSTRACT: This article aims to analyze the Student Assistance Policies (Paes) and the professionals involved in their implementation at the Federal Institutes of Education, Science and Technology (IF) from an educational perspective. To this end, the triangulation of a quantitative-qualitative approach was used to analyze the data obtained through documentary research. Information was obtained about the professionals and PAES of 31 institutes, in which the prediction of support services is under a universal or exclusively selective perspective. There are 2,782 assistants involved in Student Assistance (AE) to serve 473,897 students in the IF. There are a greater number, respectively, of student assistants, social workers, psychologists, and pedagogues. 25 Paes that explicitly provided for universalist programs or actions were identified. However, for such policies to be effective, the number of professionals must be sufficient to guarantee support services from a universal perspective. This aspect of action legitimizes, to Student Assistance professionals, their educating identity which needs to be incorporated by professionals in such a way that it is equally perceived by the academic community and effectively contributes to the development of the educational process.
DOI: 10.6084/m9.figshare.21310462
title: PERCEPTION OF ENVIRONMENT AND MILIEU IN TEACHING EDUCATION FOR CHILDREN

description: ABSTRACT The perception and understanding of the environment and milieu concepts is essential in Early Childhood teacher training. Through a case study, based on a sample of 377 4th Grade Early Childhood Education students for the period 2016-2020, results indicate a distortion in the understanding of both concepts. Using the pictorial representations and its brief explanation as a research tool, results also show a predominant teaching vision of the environment as “close social milieu” and as “close and concrete local milieu”. In the case of the milieu, there are many representations such as “natural milieu and distant” and “general local milieu”. In this way, deficiencies related to interdisciplinary perception and glocalization processes are manifested, while a lack of these deficiencies could contribute to transform teacher training.
DOI: 10.6084/m9.figshare.21310462.v1
title: PERCEPTION OF ENVIRONMENT AND MILIEU IN TEACHING EDUCATION FOR CHILDREN

description: ABSTRACT The perception and understanding of the environment and milieu concepts is essential in Early Childhood teacher training. Through a case study, based on a sample of 377 4th Grade Early Childhood Education students for the period 2016-2020, results indicate a distortion in the understanding of both concepts. Using the pictorial representations and its brief explanation as a research tool, results also show a predominant teaching vision of the environment as “close social milieu” and as “close and concrete local milieu”. In the case of the milieu, there are many representations such as “natural milieu and distant” and “general local milieu”. In this way, deficiencies related to interdisciplinary perception and glocalization processes are manifested, while a lack of these deficiencies could contribute to transform teacher training.
DOI: 10.6084/m9.figshare.21310464
title: Increase in cation exchange capacity by the action of maize rhizosphere on Mg or Fe biotite-rich rocks

description: ABSTRACT The weathering of some silicate minerals in crushed rocks may occur in a few days of cropping and generate different physicochemical properties, with potential benefits to tropical soils. This study aimed to investigate the infuence of maize (Zea mays L.) rhizosphere on the weathering products and on the cation exchange capacity of Mg-biotite from biotite schist and Fe-biotite from biotite syenite. An experiment was carried out in pots, so that plants and crushed rock materials could be evaluated during seven successive growth cycles. The nutrients iron and potassium were taken up from biotite schist and biotite syenite during cropping. The weathering of both biotites promoted by the rhizosphere caused mineralogical changes. The most expressive change in the X-ray diffraction patterns occurred in the &lt; 53 µm particle size fraction; however, the 53-300 µm fractions also changed. The alteration in the Mg-biotite, which has a lower Fe/Mg relation in octahedral sites than the Fe-biotite, was responsible for the most expressive cation exchange capacity increase in the fractions &lt; 300 µm. However, the Fe-biotite weathering process, which presents a higher Fe/Mg relation in octahedral sites, did not increase the cation exchange capacity.
DOI: 10.6084/m9.figshare.21310464.v1
title: Increase in cation exchange capacity by the action of maize rhizosphere on Mg or Fe biotite-rich rocks

description: ABSTRACT The weathering of some silicate minerals in crushed rocks may occur in a few days of cropping and generate different physicochemical properties, with potential benefits to tropical soils. This study aimed to investigate the infuence of maize (Zea mays L.) rhizosphere on the weathering products and on the cation exchange capacity of Mg-biotite from biotite schist and Fe-biotite from biotite syenite. An experiment was carried out in pots, so that plants and crushed rock materials could be evaluated during seven successive growth cycles. The nutrients iron and potassium were taken up from biotite schist and biotite syenite during cropping. The weathering of both biotites promoted by the rhizosphere caused mineralogical changes. The most expressive change in the X-ray diffraction patterns occurred in the &lt; 53 µm particle size fraction; however, the 53-300 µm fractions also changed. The alteration in the Mg-biotite, which has a lower Fe/Mg relation in octahedral sites than the Fe-biotite, was responsible for the most expressive cation exchange capacity increase in the fractions &lt; 300 µm. However, the Fe-biotite weathering process, which presents a higher Fe/Mg relation in octahedral sites, did not increase the cation exchange capacity.
DOI: 10.6084/m9.figshare.21213021
title: Simple Spectrophotometric Determination of Iron in Diesel Oil after Sample Preparation Employing Extraction Induced by Emulsion Breaking

description: This work reports the development of a simple and fast method for the spectrophotometric determination of Fe in diesel oil using the classic reaction with 1,10-phenanthroline after its extraction induced by emulsion breaking (EIEB). The extraction parameters of EIEB were optimized (concentration of HNO3 and Triton X-100® in the emulsifying solution) as well as the adjustment of the pH of the final solution, a necessary step to complete the colorimetric reaction. The developed method presented a limit of detection of 0.004 mg L-1 and a limit of quantification of 0.013 mg L-1 and was applied in the analysis of six samples of diesel oil with different specifications. The results were statistically similar to those obtained by graphite furnace atomic absorption spectrometry (GF AAS). A recovery test was also performed by spiking the samples with 1.0 mg L-1 of Fe in the form of an organometallic compound, yielding recovery percentages between 83 and 108%.
DOI: 10.6084/m9.figshare.21213021.v1
title: Simple Spectrophotometric Determination of Iron in Diesel Oil after Sample Preparation Employing Extraction Induced by Emulsion Breaking

description: This work reports the development of a simple and fast method for the spectrophotometric determination of Fe in diesel oil using the classic reaction with 1,10-phenanthroline after its extraction induced by emulsion breaking (EIEB). The extraction parameters of EIEB were optimized (concentration of HNO3 and Triton X-100® in the emulsifying solution) as well as the adjustment of the pH of the final solution, a necessary step to complete the colorimetric reaction. The developed method presented a limit of detection of 0.004 mg L-1 and a limit of quantification of 0.013 mg L-1 and was applied in the analysis of six samples of diesel oil with different specifications. The results were statistically similar to those obtained by graphite furnace atomic absorption spectrometry (GF AAS). A recovery test was also performed by spiking the samples with 1.0 mg L-1 of Fe in the form of an organometallic compound, yielding recovery percentages between 83 and 108%.
DOI: 10.6084/m9.figshare.21310468
title: Extrafloral nectaries of an Atlantic Forest conservation area in Southeastern Brazil

description: ABSTRACT Although extrafloral nectaries (EFNs) are reported as extremely important to understand ecological interactions, the diversity of EFN-bearing plants remains underappreciated. In Brazil, studies are concentrated in Cerrado and extremely poorly known in other phytogeographic domains, such as Atlantic forest. Thus, this study provides one of the first checklists of angiosperms with EFNs in a protected area of the Brazilian Atlantic forest, bringing information about the richness, location of EFNs on the plant’s organs, as well as plant’s habit and conservation status. A total of 93 EFN-bearing species belonging to 61 genera and 29 families is reported, which corresponds to 16.5 % of the local flora. The vast majority has not been evaluated for their conservation status, and twenty species are endemic to the Brazilian Atlantic forest. Vines and trees are the predominant plant habits and EFNs are mostly found on leaves. More than half of the species (53.7 %) comprises new additions to the world list of EFN-bearing plants, including the first record in Dilleniaceae. Our findings show a large number of EFN-bearing plant species from a single and small protected area in the Brazilian Atlantic forest. It reinforces the lack of studies of this nature, where further investigations are strongly recommended.
DOI: 10.6084/m9.figshare.21310468.v1
title: Extrafloral nectaries of an Atlantic Forest conservation area in Southeastern Brazil

description: ABSTRACT Although extrafloral nectaries (EFNs) are reported as extremely important to understand ecological interactions, the diversity of EFN-bearing plants remains underappreciated. In Brazil, studies are concentrated in Cerrado and extremely poorly known in other phytogeographic domains, such as Atlantic forest. Thus, this study provides one of the first checklists of angiosperms with EFNs in a protected area of the Brazilian Atlantic forest, bringing information about the richness, location of EFNs on the plant’s organs, as well as plant’s habit and conservation status. A total of 93 EFN-bearing species belonging to 61 genera and 29 families is reported, which corresponds to 16.5 % of the local flora. The vast majority has not been evaluated for their conservation status, and twenty species are endemic to the Brazilian Atlantic forest. Vines and trees are the predominant plant habits and EFNs are mostly found on leaves. More than half of the species (53.7 %) comprises new additions to the world list of EFN-bearing plants, including the first record in Dilleniaceae. Our findings show a large number of EFN-bearing plant species from a single and small protected area in the Brazilian Atlantic forest. It reinforces the lack of studies of this nature, where further investigations are strongly recommended.
DOI: 10.6084/m9.figshare.21310471
title: Finite element analysis of a new intervertebral disc prosthesis developed for the canine cervical spine

description: ABSTRACT: Cervical spondylomyelopathy (CSM) is a disease that affects mostly large- and giant-breed dogs. It is characterized by abnormalities of the cervical spine that may cause damage to the spinal cord and nerve roots. Cervical disc arthroplasty has been proposed as a treatment option in veterinary medicine. The current study evaluated the main stresses in a novel canine vertebral disc prosthesis and vertebral bodies using finite element analysis. Two experimental groups were created based on the material used for the prosthesis: stainless steel group (SSG) and titanium alloy group (TAG). Vertebral and prosthetic average equivalents von-Mises stress (VMS) and minimum principal stress (MiPS) were assessed while compressive, tensile, and lateral bending shear loads were applied. The stainless steel group had greater VMS distribution on all the evaluated parameters while the titanium alloy group had greater MiPS. Stresses were more concentrated on the lateral and ventral surfaces of the vertebral bodies than on their endplates. The average prosthetic stresses were more concentrated on the bone/implant contact surface than on the prosthesis/screw interface. Maximum stresses were concentrated in the screws’ cranial surface. The novel prosthesis allows even distribution along the vertebral body. Comparing prosthesis materials, titanium alloy was marginally superior regarding average stresses in all directions and should be less likely to suffer subsidence.
DOI: 10.6084/m9.figshare.21310471.v1
title: Finite element analysis of a new intervertebral disc prosthesis developed for the canine cervical spine

description: ABSTRACT: Cervical spondylomyelopathy (CSM) is a disease that affects mostly large- and giant-breed dogs. It is characterized by abnormalities of the cervical spine that may cause damage to the spinal cord and nerve roots. Cervical disc arthroplasty has been proposed as a treatment option in veterinary medicine. The current study evaluated the main stresses in a novel canine vertebral disc prosthesis and vertebral bodies using finite element analysis. Two experimental groups were created based on the material used for the prosthesis: stainless steel group (SSG) and titanium alloy group (TAG). Vertebral and prosthetic average equivalents von-Mises stress (VMS) and minimum principal stress (MiPS) were assessed while compressive, tensile, and lateral bending shear loads were applied. The stainless steel group had greater VMS distribution on all the evaluated parameters while the titanium alloy group had greater MiPS. Stresses were more concentrated on the lateral and ventral surfaces of the vertebral bodies than on their endplates. The average prosthetic stresses were more concentrated on the bone/implant contact surface than on the prosthesis/screw interface. Maximum stresses were concentrated in the screws’ cranial surface. The novel prosthesis allows even distribution along the vertebral body. Comparing prosthesis materials, titanium alloy was marginally superior regarding average stresses in all directions and should be less likely to suffer subsidence.
DOI: 10.6084/m9.figshare.21310476
title: Public hearings at the Brazilian Supreme Court: from strategic litigation to resolution

description: We intend to advance the research agenda on the judiciary by bringing research on conflict resolution in constitutional courts closer to that on the mobilization of laws by interest groups and social movements. The Public Hearings (PAs) held by the Supreme Court are analyzed as strategic arenas for processing contentious issues in which diverse actors have opportunities to contribute to legal practices. The central objective of the article is to identify the mechanisms of connection and transmission of deliberations present in the public hearings held by the Supreme Court (STF) in the period from 2007 to 2019. The research problem was formulated with the purpose of investigating and analyzing how civil society acts within the Supreme Court. Finally, this article’s main result confirms civil society organizations as the main connector of the APs held at the STF, as they represent about 40% of the organizations present, simultaneously, in more than two hearings.