cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5816415
title: Influence of Rotational Speed in the Friction Surfacing of Titanium Grade 1 on Ti-6Al-4V

description: Titanium Grade 1 was deposited on Ti-6Al-4V, 2 mm thickness, by Friction Surfacing. The process parameters were rotational speed, deposition speed and consumption rate. Only the rotational speed was varied in order to evaluate the influence of this parameter on the coatings generated. The applicability of the process has been described for a large number of materials, although the depositions of titanium alloys are still not widely studied. The objective is to investigate the effects of the rotational speed on the coatings' geometry and microstructural evolution. This investigation has shown that Titanium Grade 1 coatings can be deposited onto a Ti-6Al-4V by Friction Surfacing depending on the rotational speed. The coatings' surface homogeneity was influenced by the rotational speed, being inhomogeneous for the lowest speed. The coatings' thickness and width increased with enhancing this speed. The heat affected zone in the substrate corresponded to the complete thickness under the depositions.
DOI: 10.6084/m9.figshare.5816415.v1
title: Influence of Rotational Speed in the Friction Surfacing of Titanium Grade 1 on Ti-6Al-4V

description: Titanium Grade 1 was deposited on Ti-6Al-4V, 2 mm thickness, by Friction Surfacing. The process parameters were rotational speed, deposition speed and consumption rate. Only the rotational speed was varied in order to evaluate the influence of this parameter on the coatings generated. The applicability of the process has been described for a large number of materials, although the depositions of titanium alloys are still not widely studied. The objective is to investigate the effects of the rotational speed on the coatings' geometry and microstructural evolution. This investigation has shown that Titanium Grade 1 coatings can be deposited onto a Ti-6Al-4V by Friction Surfacing depending on the rotational speed. The coatings' surface homogeneity was influenced by the rotational speed, being inhomogeneous for the lowest speed. The coatings' thickness and width increased with enhancing this speed. The heat affected zone in the substrate corresponded to the complete thickness under the depositions.
DOI: 10.6084/m9.figshare.5816412
title: Satisfaction with the use of contraceptive methods among women from primary health care services in the city of São Paulo, Brazil

description: Abstract Objectives: to assess satisfaction with the use of contraceptive methods among women attending primary health care services in São Paulo, Brazil. Methods: crosssectional study conducted with a sample of 668 women aged 1849 years, who were enrolled in 38 primary health care facilities in São Paulo city, Brazil, in 2015. Exclusion criteria were no sexual initiation, use of irreversible contraceptive methods for more than five years, pregnancy and no contraceptive method use. Data were analyzed using chisquare and multivariate logistic regression. Results: in general, women were satisfied with current contraceptive method (78.7%). The higher percentage of satisfaction was observed among IUD users (94.7%), and female and male sterilization users (93.5% and 91.7%, respectively). Withdrawal users were less satisfied (52.9%). Contraceptive method itself was the only factor associated with satisfaction. Barrier or traditional method users were less likely to be satisfied with their contraceptive methods than irreversible method users. Conclusions: long acting contraceptive method and irreversible method users were more satisfied with their contraceptive methods. Efforts should be undertaken in order to make these contraceptives available and accessible in primary health care facilities in Brazil.
DOI: 10.6084/m9.figshare.5816412.v1
title: Satisfaction with the use of contraceptive methods among women from primary health care services in the city of São Paulo, Brazil

description: Abstract Objectives: to assess satisfaction with the use of contraceptive methods among women attending primary health care services in São Paulo, Brazil. Methods: crosssectional study conducted with a sample of 668 women aged 1849 years, who were enrolled in 38 primary health care facilities in São Paulo city, Brazil, in 2015. Exclusion criteria were no sexual initiation, use of irreversible contraceptive methods for more than five years, pregnancy and no contraceptive method use. Data were analyzed using chisquare and multivariate logistic regression. Results: in general, women were satisfied with current contraceptive method (78.7%). The higher percentage of satisfaction was observed among IUD users (94.7%), and female and male sterilization users (93.5% and 91.7%, respectively). Withdrawal users were less satisfied (52.9%). Contraceptive method itself was the only factor associated with satisfaction. Barrier or traditional method users were less likely to be satisfied with their contraceptive methods than irreversible method users. Conclusions: long acting contraceptive method and irreversible method users were more satisfied with their contraceptive methods. Efforts should be undertaken in order to make these contraceptives available and accessible in primary health care facilities in Brazil.
DOI: 10.6084/m9.figshare.5816403
title: Porosity Characterization of Iron Ore Pellets by X-Ray Microtomography

description: This work proposes a three-dimensional methodology to characterize porosity in iron ore pellets by X-ray Microtomography (microCT). An image analysis routine was developed to discriminate and quantify open/closed porosity. The results were compared to the traditional techniques of mercury intrusion porosimetry (MIP) and optical microscopy (OM). As expected, the porosity values obtained from microCT were much lower than those from MIP and OM, due to the lower spatial resolution of the proposed technique. However, the resolution can be optimized to detect the main peak of the pore size distribution, close to 10 µm. MicroCT was also able to discriminate between open and closed porosities, and revealed the volumetric spatial distribution of the pores, parameters that cannot be obtained from the other techniques. Thus, microCT may become a new standard for this analysis, eliminating the need for specimen preparation (as for OM) or the use of toxic materials (as in MIP).
DOI: 10.6084/m9.figshare.5816403.v1
title: Porosity Characterization of Iron Ore Pellets by X-Ray Microtomography

description: This work proposes a three-dimensional methodology to characterize porosity in iron ore pellets by X-ray Microtomography (microCT). An image analysis routine was developed to discriminate and quantify open/closed porosity. The results were compared to the traditional techniques of mercury intrusion porosimetry (MIP) and optical microscopy (OM). As expected, the porosity values obtained from microCT were much lower than those from MIP and OM, due to the lower spatial resolution of the proposed technique. However, the resolution can be optimized to detect the main peak of the pore size distribution, close to 10 µm. MicroCT was also able to discriminate between open and closed porosities, and revealed the volumetric spatial distribution of the pores, parameters that cannot be obtained from the other techniques. Thus, microCT may become a new standard for this analysis, eliminating the need for specimen preparation (as for OM) or the use of toxic materials (as in MIP).
DOI: 10.6084/m9.figshare.5816400
title: Coletar ou Cultivar: as escolhas dos produtores de açaí-da-mata (Euterpe precatoria) do Amazonas

description: Abstract: The growing market demand for non-timber forest products offers an economic development opportunity that could combine productive social inclusion of family farmers to the conservation of forest ecosystems. However, the increase in production may mean the replacement of extractive forest management by monocultures, nullifying its positive effects on the conservation of forests. We attempted to identify the determinant factors that lead traditional family farmers of the lower Manacapuru river to have engaged in gathering or cultivation of açaí-da-mata (Euterpe precatoria), native from Amazonas State in Brazil. Since the fruit gathering is handmade by climbing the trees, the decision of production seems to depend mainly on the supply of young male labour, i.e., workers with the ability and physical strength to accomplish this task. Cultivation decision may be associated with an increased availability of financial capital that households get from the income of agricultural activities. Families that cultivate açaí also maintained the practice of gathering, indicating that the growing of small areas of intercropping is a strategy to increase production without necessarily total replacing the extraction by the species cultivation.
DOI: 10.6084/m9.figshare.5816400.v1
title: Coletar ou Cultivar: as escolhas dos produtores de açaí-da-mata (Euterpe precatoria) do Amazonas

description: Abstract: The growing market demand for non-timber forest products offers an economic development opportunity that could combine productive social inclusion of family farmers to the conservation of forest ecosystems. However, the increase in production may mean the replacement of extractive forest management by monocultures, nullifying its positive effects on the conservation of forests. We attempted to identify the determinant factors that lead traditional family farmers of the lower Manacapuru river to have engaged in gathering or cultivation of açaí-da-mata (Euterpe precatoria), native from Amazonas State in Brazil. Since the fruit gathering is handmade by climbing the trees, the decision of production seems to depend mainly on the supply of young male labour, i.e., workers with the ability and physical strength to accomplish this task. Cultivation decision may be associated with an increased availability of financial capital that households get from the income of agricultural activities. Families that cultivate açaí also maintained the practice of gathering, indicating that the growing of small areas of intercropping is a strategy to increase production without necessarily total replacing the extraction by the species cultivation.
DOI: 10.6084/m9.figshare.5816397
title: Novel multidisciplinary approach to monitor and treat fetuses with gastroschisis using the Svetliza Reducibility Index and the EXIT-like procedure

description: ABSTRACT Objective: To describe our initial experience with a novel approach to follow-up and treat gastroschisis in “zero minute” using the EXITlike procedure. Methods: Eleven fetuses with prenatal diagnosis of gastroschisis were evaluated. The Svetliza Reductibility Index was used to prospectively evaluate five cases, and six cases were used as historical controls. The Svetliza Reductibility Index consisted in dividing the real abdominal wall defect diameter by the larger intestinal loop to be fitted in such space. The EXIT-like procedure consists in planned cesarean section, fetal analgesia and return of the herniated viscera to the abdominal cavity before the baby can fill the intestines with air. No general anesthesia or uterine relaxation is needed. Exteriorized viscera reduction is performed while umbilical cord circulation is maintained. Results: Four of the five cases were performed with the EXIT-like procedure. Successful complete closure was achieved in three infants. The other cases were planned deliveries at term and treated by construction of a Silo. The average time to return the viscera in EXIT-like Group was 5.0 minutes, and, in all cases, oximetry was maintained within normal ranges. In the perinatal period, there were significant statistical differences in ventilation days required (p = 0.0169), duration of parenteral nutrition (p=0.0104) and duration of enteral feed (p=0.0294). Conclusion: The Svetliza Reductibility Index and EXIT-like procedure could be new options to follow and treat gastroschisis, with significantly improved neonatal outcome in our unit. Further randomized studies are needed to evaluate this novel approach.
DOI: 10.6084/m9.figshare.5816397.v1
title: Novel multidisciplinary approach to monitor and treat fetuses with gastroschisis using the Svetliza Reducibility Index and the EXIT-like procedure

description: ABSTRACT Objective: To describe our initial experience with a novel approach to follow-up and treat gastroschisis in “zero minute” using the EXITlike procedure. Methods: Eleven fetuses with prenatal diagnosis of gastroschisis were evaluated. The Svetliza Reductibility Index was used to prospectively evaluate five cases, and six cases were used as historical controls. The Svetliza Reductibility Index consisted in dividing the real abdominal wall defect diameter by the larger intestinal loop to be fitted in such space. The EXIT-like procedure consists in planned cesarean section, fetal analgesia and return of the herniated viscera to the abdominal cavity before the baby can fill the intestines with air. No general anesthesia or uterine relaxation is needed. Exteriorized viscera reduction is performed while umbilical cord circulation is maintained. Results: Four of the five cases were performed with the EXIT-like procedure. Successful complete closure was achieved in three infants. The other cases were planned deliveries at term and treated by construction of a Silo. The average time to return the viscera in EXIT-like Group was 5.0 minutes, and, in all cases, oximetry was maintained within normal ranges. In the perinatal period, there were significant statistical differences in ventilation days required (p = 0.0169), duration of parenteral nutrition (p=0.0104) and duration of enteral feed (p=0.0294). Conclusion: The Svetliza Reductibility Index and EXIT-like procedure could be new options to follow and treat gastroschisis, with significantly improved neonatal outcome in our unit. Further randomized studies are needed to evaluate this novel approach.
DOI: 10.6084/m9.figshare.5816391
title: Discourse analysis of students-workers on school truancy: A specific case in the math course

description: ABSTRACT: School absenteeism of ex-students in the Math course of the State University of Maringá, Maringá PR Brazil, and the need to work are related from the point of view of Foucault´s theory, through their own statements. By collecting official data of the university on truancy in the Math course between 2003 and 2013, we sought and analyzed scientific papers that address the evasion object and applied an interview with 26 escapees. The objective of the research, scientific papers and correlated documents were harvested on school truancy. Besides verifying the representations that truants have of their activities and their need to work, this paper instigates a critical discussion on representations involved in truancy. In fact, representations reveal their subjectivity. This research intends to describe the truants and in which discourse they are inserted so that the excluded subjects may have their own voice and opinion. “Truants” are made up by their own discourse.
DOI: 10.6084/m9.figshare.5816391.v1
title: Discourse analysis of students-workers on school truancy: A specific case in the math course

description: ABSTRACT: School absenteeism of ex-students in the Math course of the State University of Maringá, Maringá PR Brazil, and the need to work are related from the point of view of Foucault´s theory, through their own statements. By collecting official data of the university on truancy in the Math course between 2003 and 2013, we sought and analyzed scientific papers that address the evasion object and applied an interview with 26 escapees. The objective of the research, scientific papers and correlated documents were harvested on school truancy. Besides verifying the representations that truants have of their activities and their need to work, this paper instigates a critical discussion on representations involved in truancy. In fact, representations reveal their subjectivity. This research intends to describe the truants and in which discourse they are inserted so that the excluded subjects may have their own voice and opinion. “Truants” are made up by their own discourse.
DOI: 10.6084/m9.figshare.5816388
title: Emergency Severity Index: accuracy in risk classification

description: ABSTRACT Objective: To verify agreement between estimative of predicted resources using the adapted Emergency Severity Index and the real amount of resources used by patients. To analyze the variables number of years since graduation, years of work experience and years of experience in emergency services especially with accurate anticipation of resources need. Methods: This retrospective analytical study with a quantitative approach included 538 medical records of patients assisted by 11 triage nurses. Data collected were related to assistances carried out from December 2012 to February 2013. Results: There was no significant association between the adequacy of the number of resources used, based on Emergency Severity Index score, number of years since graduation, year of work experience or years of experience in emergency services. Kappa agreement coefficient (0.34) showed that agreement was low between predicted and real used number of resources. Conclusion: Nurses’ accuracy index to predict resources for patients care from emergency room using the adapted Emergency Severity Index was lower than results reported in the studies in the literature that used the original scale. There was low agreement of diagnostic exams predicted by nurses and those really performed. There was no association among correct prediction of resources needed, number of years since graduation, years of experience in emergency services and years of work experience in the unit where the study was done.
DOI: 10.6084/m9.figshare.5816388.v1
title: Emergency Severity Index: accuracy in risk classification

description: ABSTRACT Objective: To verify agreement between estimative of predicted resources using the adapted Emergency Severity Index and the real amount of resources used by patients. To analyze the variables number of years since graduation, years of work experience and years of experience in emergency services especially with accurate anticipation of resources need. Methods: This retrospective analytical study with a quantitative approach included 538 medical records of patients assisted by 11 triage nurses. Data collected were related to assistances carried out from December 2012 to February 2013. Results: There was no significant association between the adequacy of the number of resources used, based on Emergency Severity Index score, number of years since graduation, year of work experience or years of experience in emergency services. Kappa agreement coefficient (0.34) showed that agreement was low between predicted and real used number of resources. Conclusion: Nurses’ accuracy index to predict resources for patients care from emergency room using the adapted Emergency Severity Index was lower than results reported in the studies in the literature that used the original scale. There was low agreement of diagnostic exams predicted by nurses and those really performed. There was no association among correct prediction of resources needed, number of years since graduation, years of experience in emergency services and years of work experience in the unit where the study was done.
DOI: 10.6084/m9.figshare.5816385
title: Innovating home visiting to mothers and infants by community health workers: an action-oriented guide

description: Abstract Objectives: to describe the process of development and the structure of an action-oriented guide for home visits (HVs) to mothers and infants by Community Health Workers (CHWs). The guide was adopted in a controlled trial aimed at assessing its efficacy in improving CHWs' performance. Methods: steps to develop the guide included: 1) Review of international and national standards and recommendations for community interventions for maternal and child care; 2) Assessment of perceived needs of CHWs and other Family Health professionals regarding prenatal and postnatal HVs; 3) Identification of elements to construct the guide. Results: the Guide provides action-oriented instructions for 10 HVs during prenatal and postnatal period up to 9 months instead of the 18 HVs currently recommended by Ministry of Health. Specific tasks for each visit including assessment and promotion of early child development (ECD) and an action-oriented risk classification are introduced as standardized operational practice. Conclusions: the described approach to guide construction allows adapting the guide contents to the health system context in Brazil and other countries interested in improving quality of HVs by CHWs. The guide, by identifying tasks to be carried out and actions to be taken at each HV, provides an innovative approach and represents a requisite for a more efficient and effective use of their time.
DOI: 10.6084/m9.figshare.5816385.v1
title: Innovating home visiting to mothers and infants by community health workers: an action-oriented guide

description: Abstract Objectives: to describe the process of development and the structure of an action-oriented guide for home visits (HVs) to mothers and infants by Community Health Workers (CHWs). The guide was adopted in a controlled trial aimed at assessing its efficacy in improving CHWs' performance. Methods: steps to develop the guide included: 1) Review of international and national standards and recommendations for community interventions for maternal and child care; 2) Assessment of perceived needs of CHWs and other Family Health professionals regarding prenatal and postnatal HVs; 3) Identification of elements to construct the guide. Results: the Guide provides action-oriented instructions for 10 HVs during prenatal and postnatal period up to 9 months instead of the 18 HVs currently recommended by Ministry of Health. Specific tasks for each visit including assessment and promotion of early child development (ECD) and an action-oriented risk classification are introduced as standardized operational practice. Conclusions: the described approach to guide construction allows adapting the guide contents to the health system context in Brazil and other countries interested in improving quality of HVs by CHWs. The guide, by identifying tasks to be carried out and actions to be taken at each HV, provides an innovative approach and represents a requisite for a more efficient and effective use of their time.
DOI: 10.6084/m9.figshare.5816382
title: Preparation and Characterization of Nickel ferrite Nanoparticles via Co-precipitation Method

description: Nickel ferrite (NiFe2O4) nanoparticles were synthesized using co-precipitation method. The X-ray diffraction (XRD) pattern was used to determine the structure of NiFe2O4 nanoparticles. The presence of NiFe2O4 nanoparticles was confirmed by the FT-IR spectrum. The details of the surface morphology of NiFe2O4 nanoparticles were obtained by Scanning Electron Microscopic analysis. The particle size of the NiFe2O4 nanoparticles could be determined by means of Transmission Electron Microscopy. This work aimed at the investigation of the dielectric properties such as the dielectric loss and the dielectric constant of NiFe2O4 nanoparticles at varied frequencies and temperatures. In addition, the magnetic properties of the NiFe2O4 nanoparticles were studied.