cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.22730391.v1
title: Sugarcane Bagasse Fibers Derivatives and Their Application in Chitosan-Based Composite Films for NPK Fertilizer Release

description: Encapsulation and release of NPK fertilizer by composite films were systematically demonstrated by casting dispersions of chitosan (CS) and sugarcane bagasse (SCB) derivatives (holocellulose (HC), cellulignin (CL), and cellulose (CEL)) fibers under varied CS-to-NPK and CS-to-SCB derivatives mass ratios. SCB derivatives were obtained from sugarcane bagasse as agricultural waste by following the alkali dissolution (4% NaOH, 70 °C for 5 min), sodium chlorite delignification (1.4% NaClO2, pH 3.5, 70 °C, 5 h), or from a combination of both. Nutrientadsorption capacity can be tunable by the chemical composition of SCB derivatives, i.e., fibers with noncellulosics exhibited higher adsorption capacities while the absence of noncellulosics lessened their adsorption capacity. Oven-drying (60 °C, 5 h) of optimal 1:0.5 CS/NPK film-forming solution produced highly uniform films with shape with 0.31 ± 0.02 mm thickness while increasing fiber content in the solution to 25 or 50% prevents films retraction effect. The release of highly water-soluble NPK fertilizer from these composite films was lower with hemicelluloses (52-82%) or lignin (55-92%) contents in SCB fiber than in noncellulosics absence (71-100%), thus could be tuned by varying the chemical composition SCB derivative, followed by a quasi-Fickian diffusion mechanism in water.
DOI: 10.6084/m9.figshare.22730393
title: Stabilization of an MQ-3 Sensor for Ethanol Measurement in Cowpea Seeds

description: ABSTRACT The widespread adoption of sensor technology has made it a standard practice for obtaining precise and timely information during the harvest and post-harvest periods. One sensor that has gained popularity for post-harvest seed monitoring is the MQ-3, which identifies ethanol in the air as products undergo fermentation. However, these sensors typically require a stable operation. This study aimed to assess the stabilization time of an MQ-3 sensor when measuring ethanol levels in anaerobic bean seeds. We used six bean seed samples, each with an average moisture content of around 14%. We employed a completely randomized experimental design with nine repetitions for each sample. Every repetition consisted of 25 bean seeds placed in sealed flasks containing 70 mL of distilled water. This setup induced anoxic conditions within the flask, promoting anaerobic respiration in the seeds. After 24 hours, we exposed an air sample to the MQ-3 sensor and took readings at various time intervals (12-14, 19-21, 36-38, 68-70, 130-132, 192-194, 314-316, 616-618 seconds). The average stabilization time for the MQ-3 sensor while quantifying ethanol concentrations in the bean samples were approximately 23 seconds. The sensor demonstrated efficacy, convenience, and rapidity in assessing ethanol levels in anaerobic bean seeds.
DOI: 10.6084/m9.figshare.22730393.v1
title: Stabilization of an MQ-3 Sensor for Ethanol Measurement in Cowpea Seeds

description: ABSTRACT The widespread adoption of sensor technology has made it a standard practice for obtaining precise and timely information during the harvest and post-harvest periods. One sensor that has gained popularity for post-harvest seed monitoring is the MQ-3, which identifies ethanol in the air as products undergo fermentation. However, these sensors typically require a stable operation. This study aimed to assess the stabilization time of an MQ-3 sensor when measuring ethanol levels in anaerobic bean seeds. We used six bean seed samples, each with an average moisture content of around 14%. We employed a completely randomized experimental design with nine repetitions for each sample. Every repetition consisted of 25 bean seeds placed in sealed flasks containing 70 mL of distilled water. This setup induced anoxic conditions within the flask, promoting anaerobic respiration in the seeds. After 24 hours, we exposed an air sample to the MQ-3 sensor and took readings at various time intervals (12-14, 19-21, 36-38, 68-70, 130-132, 192-194, 314-316, 616-618 seconds). The average stabilization time for the MQ-3 sensor while quantifying ethanol concentrations in the bean samples were approximately 23 seconds. The sensor demonstrated efficacy, convenience, and rapidity in assessing ethanol levels in anaerobic bean seeds.
DOI: 10.6084/m9.figshare.22730396
title: Feeding development of children with microcephaly: a descriptive study

description: ABSTRACT Purpose: to describe feeding characteristics of children with microcephaly, encompassing the feeding route, food consistencies, and utensils used to feed them. Methods: a descriptive study approved by the Research Ethics Committee, including 34 caregivers of children diagnosed with microcephaly. They answered a structured interview on the children’s feeding route, breastfeeding, utensils used to feed them, and the food consistencies, besides sociodemographic and overall development data. Descriptive statistical analyses were performed, presenting absolute and percentage frequencies and measures of central tendency and dispersion. Results: the 34 caregivers in the sample were responsible for 34 children born between 2015 and 2018, diagnosed with microcephaly, due to various causes. Of these, 33 (97.02%) were on oral feeding in their first year of life - 26 (76.44%) on breastfeeding, nine of which (26.46%) exclusively so until 6 months old. The children were served food in baby bottles, cups, spoons, and syringes. Pureed food was the consistency most accepted by the children. Conclusions: there was a low prevalence of exclusive breastfeeding until they were 6 months old, delayed progress of consistencies, use of utensils inadequate to their age, and necessary adaptations to feed children, orally.
DOI: 10.6084/m9.figshare.22730396.v1
title: Feeding development of children with microcephaly: a descriptive study

description: ABSTRACT Purpose: to describe feeding characteristics of children with microcephaly, encompassing the feeding route, food consistencies, and utensils used to feed them. Methods: a descriptive study approved by the Research Ethics Committee, including 34 caregivers of children diagnosed with microcephaly. They answered a structured interview on the children’s feeding route, breastfeeding, utensils used to feed them, and the food consistencies, besides sociodemographic and overall development data. Descriptive statistical analyses were performed, presenting absolute and percentage frequencies and measures of central tendency and dispersion. Results: the 34 caregivers in the sample were responsible for 34 children born between 2015 and 2018, diagnosed with microcephaly, due to various causes. Of these, 33 (97.02%) were on oral feeding in their first year of life - 26 (76.44%) on breastfeeding, nine of which (26.46%) exclusively so until 6 months old. The children were served food in baby bottles, cups, spoons, and syringes. Pureed food was the consistency most accepted by the children. Conclusions: there was a low prevalence of exclusive breastfeeding until they were 6 months old, delayed progress of consistencies, use of utensils inadequate to their age, and necessary adaptations to feed children, orally.
DOI: 10.6084/m9.figshare.22730397
title: Accuracy of two methods to detect the presence of halitosis: the volatile sulfur compounds concentration in the mouth air and the information from a close person

description: Abstract This study aimed to analyze the accuracy of two methods for detecting halitosis, the organoleptic assessment by a trained professional (OA) with volatile sulfur compounds (VSC) measurement via Halimeter® (Interscan Corporation) and information obtained from a close person (ICP). Methodolody Participants were patients and companions who visited a university hospital over one year period to perform digestive endoscopy. A total of 138 participants were included in the VSC test, whose 115 were also included in the ICP test. ROC curves were constructed to establish the best VSC cut-off points. Results The prevalence of halitosis was 12% (95%CI: 7% to 18%) and 9% (95%CI 3% to 14%) for the OA and ICP, respectively. At the cut-off point &gt;80 parts per billion (ppb) VSC, the prevalence of halitosis was 18% (95%CI: 12% to 25%). At the cut-off point &gt;65 ppb VSC, sensitivity and specificity were 94% and 76%, respectively. At the cut-off point &gt;140 ppb, sensitivity was 47% and specificity 96%. For the ICP, sensitivity was 14% and specificity 92%. Conclusions VSC presents high sensitivity at the cut-off point of &gt;65 ppb and high specificity at the cut-off point of &gt;140 ppb. ICP had high specificity, but low sensitivity. The OA can express either occasional or chronic bad breath, whereas the ICP can be a potential instrument to detect chronic halitosis.
DOI: 10.6084/m9.figshare.22730397.v1
title: Accuracy of two methods to detect the presence of halitosis: the volatile sulfur compounds concentration in the mouth air and the information from a close person

description: Abstract This study aimed to analyze the accuracy of two methods for detecting halitosis, the organoleptic assessment by a trained professional (OA) with volatile sulfur compounds (VSC) measurement via Halimeter® (Interscan Corporation) and information obtained from a close person (ICP). Methodolody Participants were patients and companions who visited a university hospital over one year period to perform digestive endoscopy. A total of 138 participants were included in the VSC test, whose 115 were also included in the ICP test. ROC curves were constructed to establish the best VSC cut-off points. Results The prevalence of halitosis was 12% (95%CI: 7% to 18%) and 9% (95%CI 3% to 14%) for the OA and ICP, respectively. At the cut-off point &gt;80 parts per billion (ppb) VSC, the prevalence of halitosis was 18% (95%CI: 12% to 25%). At the cut-off point &gt;65 ppb VSC, sensitivity and specificity were 94% and 76%, respectively. At the cut-off point &gt;140 ppb, sensitivity was 47% and specificity 96%. For the ICP, sensitivity was 14% and specificity 92%. Conclusions VSC presents high sensitivity at the cut-off point of &gt;65 ppb and high specificity at the cut-off point of &gt;140 ppb. ICP had high specificity, but low sensitivity. The OA can express either occasional or chronic bad breath, whereas the ICP can be a potential instrument to detect chronic halitosis.
DOI: 10.6084/m9.figshare.22730403
title: Mathematical Mapping Study of Synthetic Antioxidants Behavior in Biodiesel: Application of the Self-Organized Feature Map (SOFM) and Multilayer Perceptron (MLP)

description: The objective of the present work was to apply self-organizing feature maps (SOFM) and multilayer perceptron (MLP) to evaluate the protective capacity of tert-butylhydroquinone (TBHQ), butylhydroxyanisole (BHA), and butylhydroxytoluene (BHT) antioxidants against the biodiesel oxidation reaction. For this, the antioxidant concentration and the biodiesel compliance parameters were used as continuous input variables and the type of antioxidant as a categorical. The SOFM proved to be an adequate tool for the classification of biodiesel samples containing antioxidants. The performance of the 5 most active networks of the model ranged from 89 to 99% for training, testing, and validation with an error below 1.42 × 10-4. Statistical tests applied to validate the model showed no significant difference between predicted and experimental values. The global sensitivity analysis showed that the relative protection factor (RPF) contributed with 34.89%, the antioxidant with 31.49%, the induction period with 10.69%, the water content with 6.00%, and the others all together with 16.93% in the construction of the regression models by MLP.
DOI: 10.6084/m9.figshare.22730403.v1
title: Mathematical Mapping Study of Synthetic Antioxidants Behavior in Biodiesel: Application of the Self-Organized Feature Map (SOFM) and Multilayer Perceptron (MLP)

description: The objective of the present work was to apply self-organizing feature maps (SOFM) and multilayer perceptron (MLP) to evaluate the protective capacity of tert-butylhydroquinone (TBHQ), butylhydroxyanisole (BHA), and butylhydroxytoluene (BHT) antioxidants against the biodiesel oxidation reaction. For this, the antioxidant concentration and the biodiesel compliance parameters were used as continuous input variables and the type of antioxidant as a categorical. The SOFM proved to be an adequate tool for the classification of biodiesel samples containing antioxidants. The performance of the 5 most active networks of the model ranged from 89 to 99% for training, testing, and validation with an error below 1.42 × 10-4. Statistical tests applied to validate the model showed no significant difference between predicted and experimental values. The global sensitivity analysis showed that the relative protection factor (RPF) contributed with 34.89%, the antioxidant with 31.49%, the induction period with 10.69%, the water content with 6.00%, and the others all together with 16.93% in the construction of the regression models by MLP.
DOI: 10.6084/m9.figshare.22730402
title: Overview of Percutaneous Coronary Interventions for Chronic Total Occlusions Treated at Brazilian Centers Participating in the LATAM CTO Registry

description: Abstract Background Major advances have been seen in techniques and devices for performing percutaneous coronary interventions (PCIs) for chronic total occlusions (CTOs), but there are limited real-world practice data from developing countries. Objectives To report clinical and angiographic characteristics, procedural aspects, and clinical outcomes of CTO PCI performed at dedicated centers in Brazil. Methods Included patients underwent CTO PCI at centers participating in the LATAM CTO Registry, a Latin American multicenter registry dedicated to prospective collection of these data. Inclusion criteria were procedures performed in Brazil, age 18 years or over, and presence of CTO with PCI attempt. CTO was defined as a 100% lesion in an epicardial coronary artery, known or estimated to have lasted at least 3 months. Results Data on 1196 CTO PCIs were included. Procedures were performed primarily for angina control (85%) and/or treatment of moderate/severe ischemia (24%). Technical success rate was 84%, being achieved with antegrade wire approaches in 81% of procedures, antegrade dissection and re-entry in 9%, and retrograde approaches in 10%. In-hospital adverse cardiovascular events occurred in 2.3% of cases, with a mortality rate of 0.75%. Conclusions CTOs can be treated effectively in Brazil by using PCI, with low complication rates. The scientific and technological development observed in this area in the past decade is reflected in the clinical practice of dedicated Brazilian centers.
DOI: 10.6084/m9.figshare.22730402.v1
title: Overview of Percutaneous Coronary Interventions for Chronic Total Occlusions Treated at Brazilian Centers Participating in the LATAM CTO Registry

description: Abstract Background Major advances have been seen in techniques and devices for performing percutaneous coronary interventions (PCIs) for chronic total occlusions (CTOs), but there are limited real-world practice data from developing countries. Objectives To report clinical and angiographic characteristics, procedural aspects, and clinical outcomes of CTO PCI performed at dedicated centers in Brazil. Methods Included patients underwent CTO PCI at centers participating in the LATAM CTO Registry, a Latin American multicenter registry dedicated to prospective collection of these data. Inclusion criteria were procedures performed in Brazil, age 18 years or over, and presence of CTO with PCI attempt. CTO was defined as a 100% lesion in an epicardial coronary artery, known or estimated to have lasted at least 3 months. Results Data on 1196 CTO PCIs were included. Procedures were performed primarily for angina control (85%) and/or treatment of moderate/severe ischemia (24%). Technical success rate was 84%, being achieved with antegrade wire approaches in 81% of procedures, antegrade dissection and re-entry in 9%, and retrograde approaches in 10%. In-hospital adverse cardiovascular events occurred in 2.3% of cases, with a mortality rate of 0.75%. Conclusions CTOs can be treated effectively in Brazil by using PCI, with low complication rates. The scientific and technological development observed in this area in the past decade is reflected in the clinical practice of dedicated Brazilian centers.
DOI: 10.6084/m9.figshare.22730408
title: Artificial intelligence and forecasting of death by COVID-19 in Brazil: A comparative analysis of the algorithms Logistic Regression, Decision Tree, and Random Forest

description: ABSTRACT This work makes use of artificial intelligence to contribute with empirical evidence that help predict death by COVID-19, enabling the improvement of health protocols used in health systems in Brazil and providing society with more tools to combat COVID-19. Data from January to September 2021 for Brazil are used in order to predict death by COVID-19 based on the clinical status of patients who used the Unified Health System in the studied period, in which three classification algorithms were tried: Logistic Regression (LR), Decision Tree (DT), and Random Forest (RF). The LR, DT, and RF models had a mean accuracy of 76%, 76%, and 77% in predicting death, respectively. In addition, it was possible to infer that when patients reach a point that require the use of ventilatory support and ICU, added to age, their chance of dying of COVID-19 is greater.
DOI: 10.6084/m9.figshare.22730408.v1
title: Artificial intelligence and forecasting of death by COVID-19 in Brazil: A comparative analysis of the algorithms Logistic Regression, Decision Tree, and Random Forest

description: ABSTRACT This work makes use of artificial intelligence to contribute with empirical evidence that help predict death by COVID-19, enabling the improvement of health protocols used in health systems in Brazil and providing society with more tools to combat COVID-19. Data from January to September 2021 for Brazil are used in order to predict death by COVID-19 based on the clinical status of patients who used the Unified Health System in the studied period, in which three classification algorithms were tried: Logistic Regression (LR), Decision Tree (DT), and Random Forest (RF). The LR, DT, and RF models had a mean accuracy of 76%, 76%, and 77% in predicting death, respectively. In addition, it was possible to infer that when patients reach a point that require the use of ventilatory support and ICU, added to age, their chance of dying of COVID-19 is greater.
DOI: 10.6084/m9.figshare.22730409
title: Behavior of the Health Care Network during disaster situations: a case study of the Kiss Nightclub in Santa Maria-RS

description: ABSTRACT The aim of this study was to evaluate the behavior of the Health Care Network (RAS) during disaster situations. The study was carried out in Santa Maria, state of Rio Grande do Sul, and had as its object the performance of the Unified Health System (SUS) after the fire that took place at the Kiss Nightclub, in 2013. This is a qualitative study, with characteristics of the Fourth Generation Assessment. The main sources of information were individual and collective interviews with representatives of groups with different interests in the proposed topic. Data analysis identified three moments of action with distinct characteristics. The initial response depended on mobilization capacity, connectivity, community resources, and convening capacity; care for survivors and their families – especially hospital care – required regulation, funding, and the ability to manage and coordinate teams with a vision of the care proposals in dispute. There was openness to less hierarchical forms of service management. The institutionality of the SUS, with resource mobilization, network, and regulatory capacity, was the most important factor in facing the effects of the disaster. The fragmentation of services and the fragility of Primary Care limited the quality of immediate care and made longitudinal care difficult.
DOI: 10.6084/m9.figshare.22730409.v1
title: Behavior of the Health Care Network during disaster situations: a case study of the Kiss Nightclub in Santa Maria-RS

description: ABSTRACT The aim of this study was to evaluate the behavior of the Health Care Network (RAS) during disaster situations. The study was carried out in Santa Maria, state of Rio Grande do Sul, and had as its object the performance of the Unified Health System (SUS) after the fire that took place at the Kiss Nightclub, in 2013. This is a qualitative study, with characteristics of the Fourth Generation Assessment. The main sources of information were individual and collective interviews with representatives of groups with different interests in the proposed topic. Data analysis identified three moments of action with distinct characteristics. The initial response depended on mobilization capacity, connectivity, community resources, and convening capacity; care for survivors and their families – especially hospital care – required regulation, funding, and the ability to manage and coordinate teams with a vision of the care proposals in dispute. There was openness to less hierarchical forms of service management. The institutionality of the SUS, with resource mobilization, network, and regulatory capacity, was the most important factor in facing the effects of the disaster. The fragmentation of services and the fragility of Primary Care limited the quality of immediate care and made longitudinal care difficult.
DOI: 10.6084/m9.figshare.22730411
title: Extraction Induced by Microemulsion Breaking and Square Wave Voltammetry: A Promising Union to Monitor Cd, Pb and Cu in Biodiesel

description: A new approach involving square wave anodic stripping voltammetry was developed to simultaneously determine cadmium and lead and, in the same cell, sequentially copper, in biodiesel after extraction induced by microemulsion breaking. The composition of the water-in-oil microemulsion involved 10.50 mL biodiesel, 4.20 mL n-propanol and 0.30 mL of the 6.0 mol L 1 HNO3 solution. The extraction was carried out by adding 1.10 mL ultrapure water resulting in two well separated phases: an upper organic phase, and a lower aqueous phase containing the analytes. The apparatus comprised a portable potentiostat and a cell with an in situ plated mercury film glassy carbon electrode as working electrode. The limits of detection for Cd, Pb and Cu were 0.33, 0.48 and 0.66 µg L 1, respectively. The accuracy of the method was evaluated by recovery assays of spiked samples and by analyzing a standard reference material.
DOI: 10.6084/m9.figshare.22730411.v1
title: Extraction Induced by Microemulsion Breaking and Square Wave Voltammetry: A Promising Union to Monitor Cd, Pb and Cu in Biodiesel

description: A new approach involving square wave anodic stripping voltammetry was developed to simultaneously determine cadmium and lead and, in the same cell, sequentially copper, in biodiesel after extraction induced by microemulsion breaking. The composition of the water-in-oil microemulsion involved 10.50 mL biodiesel, 4.20 mL n-propanol and 0.30 mL of the 6.0 mol L 1 HNO3 solution. The extraction was carried out by adding 1.10 mL ultrapure water resulting in two well separated phases: an upper organic phase, and a lower aqueous phase containing the analytes. The apparatus comprised a portable potentiostat and a cell with an in situ plated mercury film glassy carbon electrode as working electrode. The limits of detection for Cd, Pb and Cu were 0.33, 0.48 and 0.66 µg L 1, respectively. The accuracy of the method was evaluated by recovery assays of spiked samples and by analyzing a standard reference material.