cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6151436
title: Band Structure in Carbon Nanostructure Phononic Crystals

description: We investigate the band structure of elastic waves propagating in carbon nanostructure phononic crystals with square, rectangular, triangular, honeycomb and Kagomé lattices. We also study the influence of carbon nanostructure cross section geometry - circular, hollow circular, square and rotated square with a 45° angle of rotation with respect to the x and y axes. Plane wave expansion method is used to solve the governing equations of motion of a isotropic solid based on classical elasticity theory, ignoring nanoscopic size effects, considering two-dimensional periodicity and wave propagation in the xy plane. Complete band gaps between XY and Z modes are observed for all types of carbon nanostructures. The best performance is for nanophononic crystal with circular carbon nanostructures in a triangular lattice with high band gap width in a broad range of filling fraction. We suggest that carbon nanostructure phononic crystals are feasible for elastic vibration management in GHz.
DOI: 10.6084/m9.figshare.6151436.v1
title: Band Structure in Carbon Nanostructure Phononic Crystals

description: We investigate the band structure of elastic waves propagating in carbon nanostructure phononic crystals with square, rectangular, triangular, honeycomb and Kagomé lattices. We also study the influence of carbon nanostructure cross section geometry - circular, hollow circular, square and rotated square with a 45° angle of rotation with respect to the x and y axes. Plane wave expansion method is used to solve the governing equations of motion of a isotropic solid based on classical elasticity theory, ignoring nanoscopic size effects, considering two-dimensional periodicity and wave propagation in the xy plane. Complete band gaps between XY and Z modes are observed for all types of carbon nanostructures. The best performance is for nanophononic crystal with circular carbon nanostructures in a triangular lattice with high band gap width in a broad range of filling fraction. We suggest that carbon nanostructure phononic crystals are feasible for elastic vibration management in GHz.
DOI: 10.6084/m9.figshare.6151433
title: Drying Contraction Assessment of Ceramic Products Produced by Extrusion or Pressing Formulated with Sheep Wool Waste

description: The main aim of this paper was to evaluate ceramic products containing a percentage of ash from sheep wool waste through drying linear shrinkage from a small brickyard in Bagé - RS. The ash percentages used in the formulation were 0, 5, 10, 20 and 30%. Raw materials were analyzed by Energy Dispersive X - ray Fluorescence (XRF/EDX). The methods used to shape the ceramic products were vacuum extrusion and pressing. After shaping, the ceramic products were dried in laboratory conditions with an average temperature of 21°C for 3 weeks and later in an oven at 110°C for 48 h. The drying linear shrinkage test was performed according to the specifications of standard C-021/95, and its average results for all formulations were 8.2% and 0.7%, for the extruded and pressed products, respectively. The results of drying linear shrinkage were higher for the extruded products than for the pressed ones, showing that the addition of the ash from the sheep wool waste in the clay decreased the drying linear shrinkage in the extruded ceramic products.
DOI: 10.6084/m9.figshare.6151433.v1
title: Drying Contraction Assessment of Ceramic Products Produced by Extrusion or Pressing Formulated with Sheep Wool Waste

description: The main aim of this paper was to evaluate ceramic products containing a percentage of ash from sheep wool waste through drying linear shrinkage from a small brickyard in Bagé - RS. The ash percentages used in the formulation were 0, 5, 10, 20 and 30%. Raw materials were analyzed by Energy Dispersive X - ray Fluorescence (XRF/EDX). The methods used to shape the ceramic products were vacuum extrusion and pressing. After shaping, the ceramic products were dried in laboratory conditions with an average temperature of 21°C for 3 weeks and later in an oven at 110°C for 48 h. The drying linear shrinkage test was performed according to the specifications of standard C-021/95, and its average results for all formulations were 8.2% and 0.7%, for the extruded and pressed products, respectively. The results of drying linear shrinkage were higher for the extruded products than for the pressed ones, showing that the addition of the ash from the sheep wool waste in the clay decreased the drying linear shrinkage in the extruded ceramic products.
DOI: 10.6084/m9.figshare.6151430
title: The sexual violence occurred in childhood is associated with undergraduate student's life quality

description: ABSTRACT Objective To analyze the existence of a possible association between exposure to sexual violence in childhood and a lower undergraduate students’ quality of life. Methods A total of 935 university students participated in the research and answered the following instruments: sexual abuse prevalence questionnaire, abbreviated life quality questionnaire (WHOQOL-bref), and a questionnaire involving sociodemographic issues and a history of clinical diseases. The chi-square association test and logistic regression analysis were used, having as the binary endpoint variable the life quality (lower and higher). In the final regression model, the sensitivity test was applied to identify the correctness among the cases observed with superior life quality and the specificity test applied to the cases observed with lower life quality. The overall efficiency percentage of the model was applied to a cutoff of 0.5. Results The majority of participants were: female (55.6%, 520), brown (52.3%, 489), single (58.4%, 546). They were at the average age of 21 years old (SD = ± 5) and average family income of R$ 3,875.00 (SD = ± 4,690.00). From logistic regression, it was observed association with inferior life quality: need for psychological counseling, being single, suffering sexual violence in childhood, not being Caucasian, practicing physical activity three times or more a week, being born in rural area and practicing religion. Conclusion The study showed that sexual abuse, even after many years, still has an association with inferior life quality of university students.
DOI: 10.6084/m9.figshare.6151430.v1
title: The sexual violence occurred in childhood is associated with undergraduate student's life quality

description: ABSTRACT Objective To analyze the existence of a possible association between exposure to sexual violence in childhood and a lower undergraduate students’ quality of life. Methods A total of 935 university students participated in the research and answered the following instruments: sexual abuse prevalence questionnaire, abbreviated life quality questionnaire (WHOQOL-bref), and a questionnaire involving sociodemographic issues and a history of clinical diseases. The chi-square association test and logistic regression analysis were used, having as the binary endpoint variable the life quality (lower and higher). In the final regression model, the sensitivity test was applied to identify the correctness among the cases observed with superior life quality and the specificity test applied to the cases observed with lower life quality. The overall efficiency percentage of the model was applied to a cutoff of 0.5. Results The majority of participants were: female (55.6%, 520), brown (52.3%, 489), single (58.4%, 546). They were at the average age of 21 years old (SD = ± 5) and average family income of R$ 3,875.00 (SD = ± 4,690.00). From logistic regression, it was observed association with inferior life quality: need for psychological counseling, being single, suffering sexual violence in childhood, not being Caucasian, practicing physical activity three times or more a week, being born in rural area and practicing religion. Conclusion The study showed that sexual abuse, even after many years, still has an association with inferior life quality of university students.
DOI: 10.6084/m9.figshare.6151427
title: Evaluation of the Family Health Support Centers focusing on the integration to supported teams

description: ABSTRACT OBJECTIVE: To evaluate the Brazilian Family Health Support Centers focusing on the integration to supported teams. METHODS: This is an evaluation study in which we carried out a documentary analysis and modeling of the intervention focusing on the work integrated to the supported teams, which has allowed us to describe dimensions, objectives, and expected results. We defined the outcome indicators and their respective measures and sources of information. We used consensus techniques with key informants to validate the models and the matrix of indicators. RESULTS: The evaluation study was appropriate, and it allowed a better definition and knowledge about the intervention. CONCLUSIONS: There is coherence between the objectives of the Family Health Support Centers and their structure, although there are difficulties to operationalize them. We recommend a formative evaluation of the Family Health Support Centers focusing on the work integrated to the supported teams, seeking to strengthen them to achieve the expected results.
DOI: 10.6084/m9.figshare.6151427.v1
title: Evaluation of the Family Health Support Centers focusing on the integration to supported teams

description: ABSTRACT OBJECTIVE: To evaluate the Brazilian Family Health Support Centers focusing on the integration to supported teams. METHODS: This is an evaluation study in which we carried out a documentary analysis and modeling of the intervention focusing on the work integrated to the supported teams, which has allowed us to describe dimensions, objectives, and expected results. We defined the outcome indicators and their respective measures and sources of information. We used consensus techniques with key informants to validate the models and the matrix of indicators. RESULTS: The evaluation study was appropriate, and it allowed a better definition and knowledge about the intervention. CONCLUSIONS: There is coherence between the objectives of the Family Health Support Centers and their structure, although there are difficulties to operationalize them. We recommend a formative evaluation of the Family Health Support Centers focusing on the work integrated to the supported teams, seeking to strengthen them to achieve the expected results.
DOI: 10.6084/m9.figshare.6151421
title: Reporting of HIV-infected pregnant women: estimates from a Brazilian study

description: ABSTRACT OBJECTIVE: To estimate the coverage of the reporting of cases of HIV-infected pregnant women, to estimate the increase in the coverage of the reporting with the routine search of data in other Brazilian health information systems, and to identify missed opportunities for identification of HIV-infected pregnant women in Brazilian maternity hospitals. METHODS: This is a descriptive study on the linkage of Brazilian databases with primary data from the “Nascer no Brasil” study and secondary database collection from national health information systems. The “Nascer no Brasil” is a national-based study carried out in 2011–2012 with 23,894 pregnant women, which identified HIV-infected pregnant women using prenatal and medical records. We searched for cases of HIV-infected pregnant women identified in the “Nascer no Brasil” study in the Information System of Notifiable Diseases, the Control System for Laboratory Tests of the National CD4+/CD8+ Lymphocyte Count and HIV Viral Load Network, and the Logistics Control System for Medications. We used the OpenRecLink software for the linkage of databases. We estimated the notification coverage, with the respective confidence interval, of the evaluated Brazilian health information systems. RESULTS: We estimated the coverage of the reporting of HIV-infected pregnant women in the Information System of Notifiable Diseases as 57.1% (95%CI 42.9–70.2), and we located 89.3% of the HIV-infected pregnant women (95%CI 81.2–94.2) in some of the Brazilian health information systems researched. The search in other national health information systems would result in an increase of 57.1% of the reported cases. We identified no missed opportunities for the diagnosis of HIV+ in pregnant women in the maternity hospitals evaluated by the “Nascer no Brasil” study. CONCLUSIONS: The routine search for information in other Brazilian health information systems, a procedure carried out by the Ministry of Health for cases of AIDS in adults and children, should be adopted for cases of HIV in pregnancy.
DOI: 10.6084/m9.figshare.6151421.v1
title: Reporting of HIV-infected pregnant women: estimates from a Brazilian study

description: ABSTRACT OBJECTIVE: To estimate the coverage of the reporting of cases of HIV-infected pregnant women, to estimate the increase in the coverage of the reporting with the routine search of data in other Brazilian health information systems, and to identify missed opportunities for identification of HIV-infected pregnant women in Brazilian maternity hospitals. METHODS: This is a descriptive study on the linkage of Brazilian databases with primary data from the “Nascer no Brasil” study and secondary database collection from national health information systems. The “Nascer no Brasil” is a national-based study carried out in 2011–2012 with 23,894 pregnant women, which identified HIV-infected pregnant women using prenatal and medical records. We searched for cases of HIV-infected pregnant women identified in the “Nascer no Brasil” study in the Information System of Notifiable Diseases, the Control System for Laboratory Tests of the National CD4+/CD8+ Lymphocyte Count and HIV Viral Load Network, and the Logistics Control System for Medications. We used the OpenRecLink software for the linkage of databases. We estimated the notification coverage, with the respective confidence interval, of the evaluated Brazilian health information systems. RESULTS: We estimated the coverage of the reporting of HIV-infected pregnant women in the Information System of Notifiable Diseases as 57.1% (95%CI 42.9–70.2), and we located 89.3% of the HIV-infected pregnant women (95%CI 81.2–94.2) in some of the Brazilian health information systems researched. The search in other national health information systems would result in an increase of 57.1% of the reported cases. We identified no missed opportunities for the diagnosis of HIV+ in pregnant women in the maternity hospitals evaluated by the “Nascer no Brasil” study. CONCLUSIONS: The routine search for information in other Brazilian health information systems, a procedure carried out by the Ministry of Health for cases of AIDS in adults and children, should be adopted for cases of HIV in pregnancy.
DOI: 10.6084/m9.figshare.6151418
title: Compliance with the vaccination schedule in children hospitalized with pneumonia and associated factors

description: ABSTRACT OBJECTIVE: To verify the adequacy and factors associated with compliance with the immunization schedule (BCG, DTP-Hib, MMR, PCV-10) in children hospitalized with pneumonia at a pediatric referral hospital in Northeast Brazil. METHODS: This is a cross-sectional, descriptive study with an analytical component, with a sample of 452 children hospitalized with pneumonia at the Instituto de Medicina Integral Prof. Fernando Figueira, between 2010 and 2013. The inclusion criterion was children aged from one month to less than five years of age with proof in the immunization record. The exclusion criterion was the presence of hospital-acquired pneumonia or concomitant disease. We have evaluated the adequacy of the immunization schedule for the BCG, tetravalent, MMR, and 10-valent pneumococcal conjugate (PCV-10) vaccines. We used the chi-square test and Fisher's exact test followed by multivariate Poisson regression, estimating the crude and adjusted prevalence ratios and respective 95% confidence intervals. The variables with p &lt; 0.20 in the univariate analysis were included in the multivariate analysis. RESULTS: There was good adequacy in the immunization schedule, except for PCV-10, which presented a percentage lower than 85%. We have observed an association between adequate compliance with the immunization schedule and education level of the mother (89.9% complete high school), sex of the child (87.2% female), age of the child (94.2% younger than six months), and breastfeeding (84.3% breastfed). CONCLUSIONS: Given the high rate of education level of the mother and the high percentage of breastfeeding, we can understand that there is a better understanding of the health of the child by the mothers studied in this study, showing the effectiveness of public policies for infant feeding. However, children did not have good adequacy of the immunization schedule of PCV-10, one of the main vaccines against pneumonia, which can be one of the main factors in the causes of hospitalization, with no influence on the classification of the severity of the disease. In this way, we emphasize that the causes of pneumonia morbidity are not associated with a single factor.
DOI: 10.6084/m9.figshare.6151418.v1
title: Compliance with the vaccination schedule in children hospitalized with pneumonia and associated factors

description: ABSTRACT OBJECTIVE: To verify the adequacy and factors associated with compliance with the immunization schedule (BCG, DTP-Hib, MMR, PCV-10) in children hospitalized with pneumonia at a pediatric referral hospital in Northeast Brazil. METHODS: This is a cross-sectional, descriptive study with an analytical component, with a sample of 452 children hospitalized with pneumonia at the Instituto de Medicina Integral Prof. Fernando Figueira, between 2010 and 2013. The inclusion criterion was children aged from one month to less than five years of age with proof in the immunization record. The exclusion criterion was the presence of hospital-acquired pneumonia or concomitant disease. We have evaluated the adequacy of the immunization schedule for the BCG, tetravalent, MMR, and 10-valent pneumococcal conjugate (PCV-10) vaccines. We used the chi-square test and Fisher's exact test followed by multivariate Poisson regression, estimating the crude and adjusted prevalence ratios and respective 95% confidence intervals. The variables with p &lt; 0.20 in the univariate analysis were included in the multivariate analysis. RESULTS: There was good adequacy in the immunization schedule, except for PCV-10, which presented a percentage lower than 85%. We have observed an association between adequate compliance with the immunization schedule and education level of the mother (89.9% complete high school), sex of the child (87.2% female), age of the child (94.2% younger than six months), and breastfeeding (84.3% breastfed). CONCLUSIONS: Given the high rate of education level of the mother and the high percentage of breastfeeding, we can understand that there is a better understanding of the health of the child by the mothers studied in this study, showing the effectiveness of public policies for infant feeding. However, children did not have good adequacy of the immunization schedule of PCV-10, one of the main vaccines against pneumonia, which can be one of the main factors in the causes of hospitalization, with no influence on the classification of the severity of the disease. In this way, we emphasize that the causes of pneumonia morbidity are not associated with a single factor.
DOI: 10.6084/m9.figshare.6151409
title: Ultrastructural analysis and residual DNA evaluation of rabbit vein scaffold

description: Abstract Purpose: To investigate the ultrastructural characteristics and analysis of residual DNA in scaffold models, produced with decellularized vena cava in an experimental model with rabbits. Methods: Three groups were created for ultrastructural and residual DNA analysis: group 1 - control, consisting of samples of vena cava in natura; group 2 - SD, consisting of vein fragments submitted to 2% sodium deoxycholate decellularization by shaking (160rpm - Shaker News Brunswick Scientific®) for 1 hour at controlled temperature shaker at 37°C; group 3 - SDS, consisting of vein fragments submitted to 1% sodium dodecyl sulfate decellularization under the same previous condition, for 2 hours. Results: The ultrastructural matrix of the blood vessel maintained its vintegrity after either decellularization models. The results of the two quantification methods demonstrated a significant decrease in the DNA content of the decellularized vena cava samples as compared to the control samples and, differed statistically from each other, p &lt;0.05. Conclusion: The 2% DS protocol for vein decellularization, in this experimental model, was considered the best protocol because it presented less amount of residual DNA without causing substantial destruction of the extracellular matrix.
DOI: 10.6084/m9.figshare.6151409.v1
title: Ultrastructural analysis and residual DNA evaluation of rabbit vein scaffold

description: Abstract Purpose: To investigate the ultrastructural characteristics and analysis of residual DNA in scaffold models, produced with decellularized vena cava in an experimental model with rabbits. Methods: Three groups were created for ultrastructural and residual DNA analysis: group 1 - control, consisting of samples of vena cava in natura; group 2 - SD, consisting of vein fragments submitted to 2% sodium deoxycholate decellularization by shaking (160rpm - Shaker News Brunswick Scientific®) for 1 hour at controlled temperature shaker at 37°C; group 3 - SDS, consisting of vein fragments submitted to 1% sodium dodecyl sulfate decellularization under the same previous condition, for 2 hours. Results: The ultrastructural matrix of the blood vessel maintained its vintegrity after either decellularization models. The results of the two quantification methods demonstrated a significant decrease in the DNA content of the decellularized vena cava samples as compared to the control samples and, differed statistically from each other, p &lt;0.05. Conclusion: The 2% DS protocol for vein decellularization, in this experimental model, was considered the best protocol because it presented less amount of residual DNA without causing substantial destruction of the extracellular matrix.
DOI: 10.6084/m9.figshare.6151406
title: Welded Joints' Heat Affected Zone's Extension Prediction by Switching Welding Parameters

description: Choosing welding parameters is an important step in welding process, directly influencing in the heat input provided to welded joints. This heat input value, along with temperature distribution in welded joints, provides, to the drafter, conditions of predicting the Heat Affected Zone (HAZ) extension, the kind of microstructure to be formed, and therefore, the effects of residual stress. Three welding parameters were switched, providing different welding conditions. Each condition was analyzed by SmartWeld 2011 software and macrography to find and compare the extension of HAZ. As for the residual stresses, calculated through Displacement of Coordinated Points (DCP) method. It is possible to choose the best parameters for the welded joint by GMAW process considering the parameters in study.
DOI: 10.6084/m9.figshare.6151403
title: Relevance of Dynamic Strain Aging under Quasi-Static Tension on AISI 304 Stainless Steel

description: The interval of existence of dynamic strain aging (DSA) in AISI type 304 austenitic stainless steel subjected to quasi-static tension tests, under strain rates from 3.5 x 10-2 to 3.5 x 10-4 s-1, in the temperature range from 25 to 800ºC was investigated. It was found that DSA occurs in the range extending from around 200 to 700ºC. Plastic instabilities associated with serrations, Portevin-Chatelier effect, allowed activation energies to be calculated and a possible mechanism of dislocation interaction with interstitial carbon atoms to be proposed. Significant increase in the ultimate strength, uniform elongation and work hardening demonstrate that DSA is a relevant phenomenon, which improves the high temperature mechanical properties of 304 steel.