cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7243952
title: Effect of body size heterogeneity on the aggressive behavior of larvae of matrinxã, Brycon amazonicus (Characiformes, Bryconidae)

description: ABSTRACT Brycon amazonicus is a native Amazonian fish that is important for aquaculture in South America. Larval mortality is high in this species in intensive breeding systems due to aggressiveness among larvae. The present study investigated experimentally the effects of body size heterogeneity on the aggressive behavior and survival of B. amazonicus during the early stages of larval development. Two treatments (larvae groups with homogeneous and heterogeneous body size) were evaluated throughout early larval stages tested at six time points: 12, 24, 36, 48, 60 and 72 hours after hatching (HAH). Two experiments quantified, respectively, aggressive interactions and mortality rates among larvae at each time point. The frequency of aggressive interactions exhibited by the less aggressive larvae in each replicate was higher in the homogeneous size treatment. Aggressiveness was higher at 12 HAH, decreasing thereafter, and increasing again at 72 HAH. The mortality rate significantly increased with the larval stage, and was higher in the homogeneous than in the heterogeneous sized groups. Our results showed that aggressiveness in B. amazonicus larvae is affected by size variability and larval development stage. This knowledge about larval behavior is important to develop measures to improve larval health and survival in intensive production systems for this species.
DOI: 10.6084/m9.figshare.7243952.v1
title: Effect of body size heterogeneity on the aggressive behavior of larvae of matrinxã, Brycon amazonicus (Characiformes, Bryconidae)

description: ABSTRACT Brycon amazonicus is a native Amazonian fish that is important for aquaculture in South America. Larval mortality is high in this species in intensive breeding systems due to aggressiveness among larvae. The present study investigated experimentally the effects of body size heterogeneity on the aggressive behavior and survival of B. amazonicus during the early stages of larval development. Two treatments (larvae groups with homogeneous and heterogeneous body size) were evaluated throughout early larval stages tested at six time points: 12, 24, 36, 48, 60 and 72 hours after hatching (HAH). Two experiments quantified, respectively, aggressive interactions and mortality rates among larvae at each time point. The frequency of aggressive interactions exhibited by the less aggressive larvae in each replicate was higher in the homogeneous size treatment. Aggressiveness was higher at 12 HAH, decreasing thereafter, and increasing again at 72 HAH. The mortality rate significantly increased with the larval stage, and was higher in the homogeneous than in the heterogeneous sized groups. Our results showed that aggressiveness in B. amazonicus larvae is affected by size variability and larval development stage. This knowledge about larval behavior is important to develop measures to improve larval health and survival in intensive production systems for this species.
DOI: 10.6084/m9.figshare.7243946
title: Assesment of the potential reactivity of rocks used as aggregates in civil construction in the Rio Grande do Sul state

description: ABSTRACT The alkali-aggregate reaction (AAR) is one of the possible causes for reduction of the durability and deterioration of concrete structures, being a matter of integrity and safety concern in concrete structures worldwide. In recent years cases confirmed in Brazil have affected structures such as foundations of residential buildings, bridges, dams, among others. The AAR process develops from the combination of agents such as alkalis present in Portland cement and reactive aggregates, with the constant presence of moisture, and as a result a hygroscopic gel is developed around the aggregate, resulting in expansion and cracking of the concrete, with possible bleeding of the gel, turning into irreversible damages. The present study aims to present a petrographical characterization of four types of rocks used in civil construction in the state of Rio Grande do Sul, as well as to verify the potential reactivity of these rocks by the accelerated bar method. Two aggregates were identified as volcanic rocks and the other two were identified as being subvolcanic igneous and plutonic igneous origin, respectively. While volcanic rocks showed a deleterious effect in alkali-aggregate reactivity, the other two rocks showed innocuous behavior, with potential to be used as aggregates in civil works, without being necessary any addition of mitigating materials, since their expansion levels are in compliance with the criteria established in the Brazilian standards.
DOI: 10.6084/m9.figshare.7243949.v1
title: NECROSIS OF THE FEMORAL HEAD AND HEALTH-RELATED QUALITY OF LIFE OF CHILDREN AND ADOLESCENTS

description: ABSTRACT Objective: To verify the impact of avascular necrosis of the femoral head on the quality of life of children and adolescents with Perthes disease and sickle cell disease. Methods: A comparative study including 24 children between eight and 18 years old with avascular necrosis of the femoral head secondary to Perthes disease and sickle cell disease (Group with Necrosis) and 24 children considered asymptomatic (Group without Necrosis). Clinical and sociodemographic data were collected and the PedsQL 4.0 and the Charnley score for hip dysfunction were applied. Results: There was no difference in the overall score and in any domain when comparing the Perthes group (global = 73.1) and the sickle cell disease group (global = 65.9). When comparing the groups with necrosis and without necrosis, the Perthes group had a lower overall score only for the Physical Functioning domain (87.5 versus 68.5); sickle cell disease group had a lower overall score (64.9 versus 79.4) and in the Physical Functioning (68.5 versus 87.5) and School Functioning (62.9 versus 73.7) domains. Conclusion: Avascular necrosis of the femoral head produces lower quality of life scores both in the global evaluation and in the domains Physical Functioning and School Functioning. Necrosis, bilateral lesion, and hip function were found to be associated with the loss of quality of life. Level of Evidence III, Sectional comparative study.
DOI: 10.7284/133554
title: Radiometer data collected during research cruise SKQ201915S using a Biospherical QSR-2150 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243943
title: Brazilian consensus for diagnosis, management and treatment of transthyretin familial amyloid polyneuropathy

description: ABSTRACT Transthyretin familial amyloid polyneuropathy is an autosomal dominant inherited sensorimotor and autonomic polyneuropathy, which if untreated, leads to death in approximately 10 years. In Brazil, liver transplant and tafamidis are the only disease-modifying treatments available. This review consists of a consensus for the diagnosis, management and treatment for transthyretin familial amyloid polyneuropathy from the Peripheral Neuropathy Scientific Department of the Brazilian Academy of Neurology. The first and last authors produced a draft summarizing the main views on the subject and emailed the text to 10 other specialists. Relevant literature on this subject was reviewed by each participant and used for the individual review of the whole text. Each participant was expected to review the text and send a feedback review by e-mail. Thereafter, the 12 panelists got together at the city of Fortaleza, discussed the controversial points, and reached a consensus for the final text.
DOI: 10.6084/m9.figshare.7243946.v1
title: Assesment of the potential reactivity of rocks used as aggregates in civil construction in the Rio Grande do Sul state

description: ABSTRACT The alkali-aggregate reaction (AAR) is one of the possible causes for reduction of the durability and deterioration of concrete structures, being a matter of integrity and safety concern in concrete structures worldwide. In recent years cases confirmed in Brazil have affected structures such as foundations of residential buildings, bridges, dams, among others. The AAR process develops from the combination of agents such as alkalis present in Portland cement and reactive aggregates, with the constant presence of moisture, and as a result a hygroscopic gel is developed around the aggregate, resulting in expansion and cracking of the concrete, with possible bleeding of the gel, turning into irreversible damages. The present study aims to present a petrographical characterization of four types of rocks used in civil construction in the state of Rio Grande do Sul, as well as to verify the potential reactivity of these rocks by the accelerated bar method. Two aggregates were identified as volcanic rocks and the other two were identified as being subvolcanic igneous and plutonic igneous origin, respectively. While volcanic rocks showed a deleterious effect in alkali-aggregate reactivity, the other two rocks showed innocuous behavior, with potential to be used as aggregates in civil works, without being necessary any addition of mitigating materials, since their expansion levels are in compliance with the criteria established in the Brazilian standards.
DOI: 10.6084/m9.figshare.7243940
title: Vasodilation and Reduction of Systolic Blood Pressure after One Session of High-Intensity Interval Training in Patients With Heart Failure with Preserved Ejection Fraction

description: Abstract Background: Heart failure with preserved ejection fraction (HFpEF) is a multifactorial syndrome characterized by a limited exercising capacity. High-intensity interval training (HIIT) is an emerging strategy for exercise rehabilitation in different settings. In patients with HFpEF, HIIT subacute effects on endothelial function and blood pressure are still unknown. Objective: To evaluate the subacute effect of one HIIT session on endothelial function and blood pressure in patients with HFpEF. Methods: Sixteen patients with HFpEF underwent a 36-minute session of HIIT on a treadmill, alternating four minutes of high-intensity intervals with three minutes of active recovery. Brachial artery diameter, flow-mediated dilation, and blood pressure were assessed immediately before and 30 minutes after the HIIT session. In all analyses, p &lt;0.05 was considered statistically significant. Results: There was an increase in brachial artery diameter (pre-exercise: 3.96 ± 0.57 mm; post-exercise: 4.33 ± 0.69 mm; p &lt; 0.01) and a decrease in systolic blood pressure (pre-exercise: 138 ± 21 mmHg; post-exercise: 125 ± 20 mmHg; p &lt; 0.01). Flow-mediated dilation (pre-exercise: 5.91 ± 5.20%; post-exercise: 3.55 ± 6.59%; p = 0.162) and diastolic blood pressure (pre-exercise: 81 ± 11 mmHg; post-exercise: 77 ± 8 mmHg; p = 1.000) did not change significantly. There were no adverse events throughout the experiment. Conclusions: One single HIIT session promoted an increase in brachial artery diameter and reduction in systolic blood pressure, but it did not change flow-mediated dilation and diastolic blood pressure.
DOI: 10.6084/m9.figshare.7243940.v1
title: Vasodilation and Reduction of Systolic Blood Pressure after One Session of High-Intensity Interval Training in Patients With Heart Failure with Preserved Ejection Fraction

description: Abstract Background: Heart failure with preserved ejection fraction (HFpEF) is a multifactorial syndrome characterized by a limited exercising capacity. High-intensity interval training (HIIT) is an emerging strategy for exercise rehabilitation in different settings. In patients with HFpEF, HIIT subacute effects on endothelial function and blood pressure are still unknown. Objective: To evaluate the subacute effect of one HIIT session on endothelial function and blood pressure in patients with HFpEF. Methods: Sixteen patients with HFpEF underwent a 36-minute session of HIIT on a treadmill, alternating four minutes of high-intensity intervals with three minutes of active recovery. Brachial artery diameter, flow-mediated dilation, and blood pressure were assessed immediately before and 30 minutes after the HIIT session. In all analyses, p &lt;0.05 was considered statistically significant. Results: There was an increase in brachial artery diameter (pre-exercise: 3.96 ± 0.57 mm; post-exercise: 4.33 ± 0.69 mm; p &lt; 0.01) and a decrease in systolic blood pressure (pre-exercise: 138 ± 21 mmHg; post-exercise: 125 ± 20 mmHg; p &lt; 0.01). Flow-mediated dilation (pre-exercise: 5.91 ± 5.20%; post-exercise: 3.55 ± 6.59%; p = 0.162) and diastolic blood pressure (pre-exercise: 81 ± 11 mmHg; post-exercise: 77 ± 8 mmHg; p = 1.000) did not change significantly. There were no adverse events throughout the experiment. Conclusions: One single HIIT session promoted an increase in brachial artery diameter and reduction in systolic blood pressure, but it did not change flow-mediated dilation and diastolic blood pressure.
DOI: 10.6084/m9.figshare.7243943.v1
title: Brazilian consensus for diagnosis, management and treatment of transthyretin familial amyloid polyneuropathy

description: ABSTRACT Transthyretin familial amyloid polyneuropathy is an autosomal dominant inherited sensorimotor and autonomic polyneuropathy, which if untreated, leads to death in approximately 10 years. In Brazil, liver transplant and tafamidis are the only disease-modifying treatments available. This review consists of a consensus for the diagnosis, management and treatment for transthyretin familial amyloid polyneuropathy from the Peripheral Neuropathy Scientific Department of the Brazilian Academy of Neurology. The first and last authors produced a draft summarizing the main views on the subject and emailed the text to 10 other specialists. Relevant literature on this subject was reviewed by each participant and used for the individual review of the whole text. Each participant was expected to review the text and send a feedback review by e-mail. Thereafter, the 12 panelists got together at the city of Fortaleza, discussed the controversial points, and reached a consensus for the final text.
DOI: 10.7284/133555
title: Singlebeam Echosounder data collected during research cruise SKQ201915S using a L-3 ELAC LAZ 5100 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243937
title: Rural and urban employment patterns in Brazil: a dynamic panel data approach

description: Abstract: This study applies a quantitative approach in dynamic panel data to capture the determinants of employment quality in Brazil through the model of generalized minimum moments. The results show that the rural universe persists as a more precarious environment than urban areas, although the differences has decreased with time. In addition, the results of this study show that growth of labor income and the level of education of employees are important tools not only to expand the levels of job quality, but also as response to dilemmas of the surveyed labor markets.
DOI: 10.6084/m9.figshare.7243937.v1
title: Rural and urban employment patterns in Brazil: a dynamic panel data approach

description: Abstract: This study applies a quantitative approach in dynamic panel data to capture the determinants of employment quality in Brazil through the model of generalized minimum moments. The results show that the rural universe persists as a more precarious environment than urban areas, although the differences has decreased with time. In addition, the results of this study show that growth of labor income and the level of education of employees are important tools not only to expand the levels of job quality, but also as response to dilemmas of the surveyed labor markets.
DOI: 10.6084/m9.figshare.7243931
title: Analysis of popular participation in healthcare policy for people with disabilities in Aracaju, Sergipe, Brazil

description: The aim of the present article is to analyze the role of civil society in healthcare policymaking for persons with disabilities in the municipality of Aracaju, Sergipe, Brazil. This was a qualitative study with semi-structured interviews with representatives of the Council for the Defense of the Rights of People with Disabilities. The data were analyzed according to thematic content analysis. The results show that the representatives held diffuse understandings of the concept of disability, shifting among existing paradigms. Special mention goes to the difficulty presented by the representatives to propose issues for the local political agenda and participate in the creation and implementation of public health policy, creating a gap between social control organizations and public management.
DOI: 10.7284/133559
title: Water Temperature data collected during research cruise SKQ201915S using a HEITRONICS CT15.10 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243931.v1
title: Analysis of popular participation in healthcare policy for people with disabilities in Aracaju, Sergipe, Brazil

description: The aim of the present article is to analyze the role of civil society in healthcare policymaking for persons with disabilities in the municipality of Aracaju, Sergipe, Brazil. This was a qualitative study with semi-structured interviews with representatives of the Council for the Defense of the Rights of People with Disabilities. The data were analyzed according to thematic content analysis. The results show that the representatives held diffuse understandings of the concept of disability, shifting among existing paradigms. Special mention goes to the difficulty presented by the representatives to propose issues for the local political agenda and participate in the creation and implementation of public health policy, creating a gap between social control organizations and public management.
DOI: 10.6084/m9.figshare.7243925
title: IMMOBILIZATION OF HORSERADISH PEROXIDASE ON SUGARCANE BAGASSE

description: The immobilization of horseradish peroxidase (HRP) on raw and alkaline pre-treated sugarcane bagasse by physical adsorption (ADS) and covalent bond (LC) methods was studied. The saturation of the support with 2 mg of HRP/g of support by LC immobilization reached 35% of immobilization efficiency and 39 units of the immobilized enzyme (U). Regarding the HRP immobilization on sugarcane bagasse without pretreatment and using the same HRP loading, it was observed a reduction in the efficiency of immobilization and in the number of immobilized units for both methods, ADS (13.98% and 15.46 U) and LC (15.79% and 17.46 U). The sugarcane bagasse with alkaline pretreatment experiment, on the other hand, exhibited higher potential for HRP immobilization by LC. The supports and biocatalysts were characterized by Fourier transform infrared spectroscopy (FTIR), showing greater availability of hydroxyl groups in the pretreated support and the typical amide I and amide II bands that corroborate the effectiveness of the enzyme immobilization on sugarcane bagasse. In the same way, the thermogravimetric analysis (TGA) confirmed a higher weight loss in the region I for the derivative immobilized by LC, suggesting the presence of water favored enzymatic activity.
DOI: 10.7284/133566
title: Water Temperature data collected during research cruise SKQ201915S using a Sea-Bird SBE-38 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243922
title: Wastewater-Based Epidemiology of Cocaine in the Brazilian Federal District: Spatial Distribution, Weekly Variation and Sample Preservation Strategies

description: The distribution of consumed cocaine in the Brazilian Federal District (FD) was estimated using the wastewater-based epidemiology (WBE) approach. Sewage samples from eight wastewater treatment plants were analyzed for cocaine (COC) and benzoylecgonine (BE) using solid-phase extraction followed by liquid chromatography-mass spectrometry. The highest per capita consumption was noticed for the northern area of the Brazilian Capital (1162 mg day-1 1000 inh-1) being 32% higher than the average consumption rate of the investigated region. In this area, a day-to-day investigation revealed an average cocaine consumption of 1800 mg day-1 1000 inh-1 during the weekend, i.e., more than 50% higher than weekdays. An annual street-grade cocaine load of about 2 ton was estimated for the FD considering previous information on the actual purity of seized street drugs as well as consumers between 15 and 64 years old. Sample preservation strategies were also investigated in order to expand the WBE approach to other Brazilian areas. Sample acidification to pH 2.0 presented the smallest relative errors for COC (+11%) and BE (−4%) after a period of three days under typical transport conditions practiced by the Brazilian national postal service.
DOI: 10.6084/m9.figshare.7243919
title: Mathematical Connections among Teachers in Mobile Cybereducation: how do they show themselves?

description: Abstract This research aimed to investigate how teachers in Mobile Cybereducation establish mathematical connections between peers. In order to do so, it was provided an education course based on the conception of Cybereducation with mathematics teachers (ROSA, 2015), which considers Digital Technologies (DT) in the context of Mathematics Education as participants in the knowledge production movement. In addition, regarding Mobile Cybereducation, this knowledge production movement is purposely raised in an informal manner through the smartphone, in line with social networks. In this sense, smartphones were made available for mobile access to these online platforms, while the participants were dispersed geographically. Under this bias, we understand the “being/participant” connected to a mobile device and this links us to the corporeity of these participants in the Merleau-Ponty (2011) perspective, pointing out as a result that teachers establish mathematical connections between peers hyper-textually plugged in a ubiquitously way. This perspective suggests the act of education with DT that happens all the time and everywhere, so that the technological resource becomes part of us, expanding/potentializing the mathematical connections made in a shared way.
DOI: 10.6084/m9.figshare.7243922.v1
title: Wastewater-Based Epidemiology of Cocaine in the Brazilian Federal District: Spatial Distribution, Weekly Variation and Sample Preservation Strategies

description: The distribution of consumed cocaine in the Brazilian Federal District (FD) was estimated using the wastewater-based epidemiology (WBE) approach. Sewage samples from eight wastewater treatment plants were analyzed for cocaine (COC) and benzoylecgonine (BE) using solid-phase extraction followed by liquid chromatography-mass spectrometry. The highest per capita consumption was noticed for the northern area of the Brazilian Capital (1162 mg day-1 1000 inh-1) being 32% higher than the average consumption rate of the investigated region. In this area, a day-to-day investigation revealed an average cocaine consumption of 1800 mg day-1 1000 inh-1 during the weekend, i.e., more than 50% higher than weekdays. An annual street-grade cocaine load of about 2 ton was estimated for the FD considering previous information on the actual purity of seized street drugs as well as consumers between 15 and 64 years old. Sample preservation strategies were also investigated in order to expand the WBE approach to other Brazilian areas. Sample acidification to pH 2.0 presented the smallest relative errors for COC (+11%) and BE (−4%) after a period of three days under typical transport conditions practiced by the Brazilian national postal service.