cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11314247
title: Van Hiele Ideas and the Realistic Mathematical Education: a few approximations

description: Abstract This article originated in a research that investigated possible relations between the principles of Realistic Mathematical Education assessment and the learning process phases proposed by Dina Van Hiele-Geldof and Pierre Van Hiele, seeking approaches. The work was developed in a research perspective of theoretical nature, of the speculative type. It highlights the educational aspect of Van Hiele's work, in particular, the learning process phases: information, guided guidance, exploitation, free orientation, and integration. It considers that the learning process phases of Van Hiele's approach are another auxiliary element in the elaboration of mathematical knowledge from situations that can be mathematized, developed through a guided reinvention process based on information collected in assessment situations.
DOI: 10.6084/m9.figshare.11314253
title: Rheological properties of sweet potato starch-date syrup gel

description: Abstract Date syrup (DS), sugars (SG) and sweet potato starch (SPS) composites were investigated using dynamic rheometry, rapid visco-amylograph (RVA), and texture analysis (TPA). HPLC analysis revealed that DS sugar composition was 55% glucose and 45% fructose. Starch gels (0% to 50% DS or SG) were precooked in RVA. SPS starch gel is considered elastic because the elastic modulus (G`) was much greater than the viscous modulus (G``). The comparison between the effect of DS versus SG revealed differences on the peak viscosity, setback, G` and G``, complex viscosity (η*), tan δ, and gel hardness. The decline in complex viscosity (η*) indicates shear thinning behavior. Despite the similarity in sugar content between DS and SG, as shown by the HPLC analysis, the data presented here disclosed how DS had more impact on the pasting and rheological properties of sweet potato starch compared to SG.
DOI: 10.6084/m9.figshare.11314253.v1
title: Rheological properties of sweet potato starch-date syrup gel

description: Abstract Date syrup (DS), sugars (SG) and sweet potato starch (SPS) composites were investigated using dynamic rheometry, rapid visco-amylograph (RVA), and texture analysis (TPA). HPLC analysis revealed that DS sugar composition was 55% glucose and 45% fructose. Starch gels (0% to 50% DS or SG) were precooked in RVA. SPS starch gel is considered elastic because the elastic modulus (G`) was much greater than the viscous modulus (G``). The comparison between the effect of DS versus SG revealed differences on the peak viscosity, setback, G` and G``, complex viscosity (η*), tan δ, and gel hardness. The decline in complex viscosity (η*) indicates shear thinning behavior. Despite the similarity in sugar content between DS and SG, as shown by the HPLC analysis, the data presented here disclosed how DS had more impact on the pasting and rheological properties of sweet potato starch compared to SG.
DOI: 10.6084/m9.figshare.11314241
title: Chest physical therapy does not alter acute physiological parameters or pain levels in preterm infants with respiratory distress syndrome in intensive care unit

description: ABSTRACT Objective: to evaluate the occurrence of acute adverse physiological alterations and the presence of pain in premature newborns with respiratory distress syndrome in a neonatal intensive care unit after chest physical therapy. Methods: a cross-sectional study evaluating 30 preterm neonates in three moments: Moment one (M1), before physical therapy, Moment two (M2), immediately after physical therapy, and Moment three (M3), 15 minutes after. Physiological alterations were considered as variations in heart rate (HR), respiratory rate (RR), peripheral oxygen saturation (SpO2), and body temperature. The presence of pain was assessed by the scales neonatal infant pain scale and neonatal facial coding system. Results: A statistically significant increase occurred in HR in M2 when comparing the three moments, but with return to baseline values 15 minutes after physical therapy. Other physiological variables (RR, SpO2,and temperature) and pain evaluation did not present significant alterations. Conclusion: physiological and behavioral parameters remained stable after chest physical therapy, with slight alterations immediately after the procedure, but with return to baseline values, indicating that physical therapy has not sharply altered vital signs and pain levels of neonates.
DOI: 10.6084/m9.figshare.11314247.v1
title: Van Hiele Ideas and the Realistic Mathematical Education: a few approximations

description: Abstract This article originated in a research that investigated possible relations between the principles of Realistic Mathematical Education assessment and the learning process phases proposed by Dina Van Hiele-Geldof and Pierre Van Hiele, seeking approaches. The work was developed in a research perspective of theoretical nature, of the speculative type. It highlights the educational aspect of Van Hiele's work, in particular, the learning process phases: information, guided guidance, exploitation, free orientation, and integration. It considers that the learning process phases of Van Hiele's approach are another auxiliary element in the elaboration of mathematical knowledge from situations that can be mathematized, developed through a guided reinvention process based on information collected in assessment situations.
DOI: 10.6084/m9.figshare.11314235
title: Is Forced Swimming Immobility a Good Endpoint for Modeling Negative Symptoms of Schizophrenia? - Study of Sub-Anesthetic Ketamine Repeated Administration Effects

description: ABSTRACT Immobility time in the forced swimming has been described as analogous to emotional blunting or apathy and has been used for characterizing schizophrenia animal models. Several clinical studies support the use of NMDA receptor antagonists to model schizophrenia in rodents. Some works describe the effects of ketamine on immobility behavior but there is variability in the experimental design used leading to controversial results. In this study, we evaluated the effects of repeated administration of ketamine sub-anesthetic doses in forced swimming, locomotion in response to novelty and novel object recognition, aiming a broader evaluation of the usefulness of this experimental approach for modeling schizophrenia in mice. Ketamine (30 mg/kg/day i.p. for 14 days) induced a not persistent decrease in immobility time, detected 24h but not 72h after treatment. This same administration protocol induced a deficit in novel object recognition. No change was observed in mice locomotion. Our results confirm that repeated administration of sub-anesthetic doses of ketamine is useful in modeling schizophrenia-related behavioral changes in mice. However, the immobility time during forced swimming does not seem to be a good endpoint to evaluate the modeling of negative symptoms in NMDAR antagonist animal models of schizophrenia.
DOI: 10.6084/m9.figshare.11314229
title: The death and the miracles of brother Fabian of Christ: connections between religious beliefs and healing in eighteenth-century Rio de Janeiro

description: Abstract Based on accounts of a hagiographic nature on brother Fabian of Christ and witness reports by the faithful after his death, this article analyzes the representations surrounding the death of the servant of god and studies the connections between the veneration of saints and healing practices in Rio de Janeiro in the mid-eighteenth century. At this time, there was a notable lack of distinction between medical knowledge and religious belief. As such, the zealous acts of the Franciscan friar over a period of decades in his work as infermarian at the Convent of Saint Anthony of Rio de Janeiro led some of the faithful to identify him as a saint after his death.
DOI: 10.6084/m9.figshare.11314232
title: EFFICIENCY INDICATORS TO EVALUATE SERVICES IN PORT SERVICES: A PROPOSAL USING FUZZY-AHP APPROACH

description: ABSTRACT This paper describes a plan to develop a prioritization model of efficiency indicators to evaluate the services provided by seaports to ships in terms ofeconomicity, quality, and reliability. The methodology adopted is applied research, using a case study carried out in a Brazilian seaport. The approach used as an intervention tool in the elaboration of the model is the Fuzzy-Analytical Hierarchy Process. The results suggest the prioritization of economicity over the other two criteria of reliability and quality.
DOI: 10.6084/m9.figshare.11314241.v1
title: Chest physical therapy does not alter acute physiological parameters or pain levels in preterm infants with respiratory distress syndrome in intensive care unit

description: ABSTRACT Objective: to evaluate the occurrence of acute adverse physiological alterations and the presence of pain in premature newborns with respiratory distress syndrome in a neonatal intensive care unit after chest physical therapy. Methods: a cross-sectional study evaluating 30 preterm neonates in three moments: Moment one (M1), before physical therapy, Moment two (M2), immediately after physical therapy, and Moment three (M3), 15 minutes after. Physiological alterations were considered as variations in heart rate (HR), respiratory rate (RR), peripheral oxygen saturation (SpO2), and body temperature. The presence of pain was assessed by the scales neonatal infant pain scale and neonatal facial coding system. Results: A statistically significant increase occurred in HR in M2 when comparing the three moments, but with return to baseline values 15 minutes after physical therapy. Other physiological variables (RR, SpO2,and temperature) and pain evaluation did not present significant alterations. Conclusion: physiological and behavioral parameters remained stable after chest physical therapy, with slight alterations immediately after the procedure, but with return to baseline values, indicating that physical therapy has not sharply altered vital signs and pain levels of neonates.
DOI: 10.6084/m9.figshare.11314223
title: Pro-Posições and higher education

description: Abstract As the Pro-Posições journal celebrates its 30th anniversary, the author analyzes the presence of higher education topics in the journal and its different approaches in articles it has published since its creation. This analysis is based on a search for articles, identification of authors and contents in the physical and digital archives of the journal from March 1990 to April 2017, and a dialog the author tried to establish between this material and the field production of studies and research on higher education in this period. The main results of this analysis include the journal’s contemporaneity in an emerging research field in Brazil and its effort to address disciplinary diversity and theoretical perspectives in higher education themes in the study period.
DOI: 10.6084/m9.figshare.11314226
title: Lean Mentorship: Fitting external support to entrepreneur needs over the startup development

description: Abstract Paper aims The present paper aims at exploring aspects of the mentoring process within the practice of technology entrepreneurship, also postulating a new concept, the lean mentorship. Originality Although literature examines the effects and nature of mentoring in a variety of contexts, this study pioneers by addressing the mentorship process from the lean startup perspective. Research method The study was structured as an exploratory research, drawing on extant literature and a focus group comprised of scholars and practitioners with key roles within an entrepreneurial and innovation ecosystem. The group’s discussion was analyzed along with extant literature. Main findings The paper further debates and provides insightful perceptions of the key characteristics of the mentorship process, such as the roles of mentors and mentees, the differences and similarities with coaching, and aspects mentorship providers should consider before exposing entrepreneurs. Implications for theory and practice The main practical and theoretical contributions of this research are exactly the pioneering nature with regard to the lean startup perspective concerning mentoring. Additionally, conclusions suggests that mentoring providers should engage in experimentations to identify the moment in which entrepreneurs will best benefit from the provision, also mitigating waste of resources, such as time and expenses.
DOI: 10.6084/m9.figshare.11314229.v1
title: The death and the miracles of brother Fabian of Christ: connections between religious beliefs and healing in eighteenth-century Rio de Janeiro

description: Abstract Based on accounts of a hagiographic nature on brother Fabian of Christ and witness reports by the faithful after his death, this article analyzes the representations surrounding the death of the servant of god and studies the connections between the veneration of saints and healing practices in Rio de Janeiro in the mid-eighteenth century. At this time, there was a notable lack of distinction between medical knowledge and religious belief. As such, the zealous acts of the Franciscan friar over a period of decades in his work as infermarian at the Convent of Saint Anthony of Rio de Janeiro led some of the faithful to identify him as a saint after his death.
DOI: 10.6084/m9.figshare.11314235.v1
title: Is Forced Swimming Immobility a Good Endpoint for Modeling Negative Symptoms of Schizophrenia? - Study of Sub-Anesthetic Ketamine Repeated Administration Effects

description: ABSTRACT Immobility time in the forced swimming has been described as analogous to emotional blunting or apathy and has been used for characterizing schizophrenia animal models. Several clinical studies support the use of NMDA receptor antagonists to model schizophrenia in rodents. Some works describe the effects of ketamine on immobility behavior but there is variability in the experimental design used leading to controversial results. In this study, we evaluated the effects of repeated administration of ketamine sub-anesthetic doses in forced swimming, locomotion in response to novelty and novel object recognition, aiming a broader evaluation of the usefulness of this experimental approach for modeling schizophrenia in mice. Ketamine (30 mg/kg/day i.p. for 14 days) induced a not persistent decrease in immobility time, detected 24h but not 72h after treatment. This same administration protocol induced a deficit in novel object recognition. No change was observed in mice locomotion. Our results confirm that repeated administration of sub-anesthetic doses of ketamine is useful in modeling schizophrenia-related behavioral changes in mice. However, the immobility time during forced swimming does not seem to be a good endpoint to evaluate the modeling of negative symptoms in NMDAR antagonist animal models of schizophrenia.
DOI: 10.6084/m9.figshare.11314223.v1
title: Pro-Posições and higher education

description: Abstract As the Pro-Posições journal celebrates its 30th anniversary, the author analyzes the presence of higher education topics in the journal and its different approaches in articles it has published since its creation. This analysis is based on a search for articles, identification of authors and contents in the physical and digital archives of the journal from March 1990 to April 2017, and a dialog the author tried to establish between this material and the field production of studies and research on higher education in this period. The main results of this analysis include the journal’s contemporaneity in an emerging research field in Brazil and its effort to address disciplinary diversity and theoretical perspectives in higher education themes in the study period.
DOI: 10.6084/m9.figshare.11314217
title: Biosynthesis and Functionalization of Bacterial Cellulose Membranes with Cerium Nitrate and Silver Nanoparticles

description: This work aimed to synthesize bacterial cellulose (BC) membranes functionalized with Ce(NO3)3 and silver nanoparticles (AgNPs) heat-treated in oven and autoclave. The AgNPs were characterized by TEM and the membranes were characterized by their rehydration capacity, Thermogravimetric Analysis (TGA), Scanning Electron Microscopy with Dispersive Energy Spectroscopy (SEM/EDS), Wide-angle X-ray Diffractometry (XRD), Atomic Absorption Spectroscopy (AAS), antimicrobial activity and cytotoxicity. The BC membranes were white to light yellow or brown indicating functionalization with AgNps with 20 nm. XRD detected a decrease in the degree of crystallinity in functionalized membranes. The autoclaved samples exhibited the largest porosity and good rehydration capacity. AAS showed Ag presence in all samples. The best antibacterial activity was achieved for the membrane’s oven treated with 40 ppm of AgNPs. Among the functionalized membranes, the most recommended to be used as burn dressing is the Ag40A and Ag20CN1.1A since they showed good porosity, good antimicrobial activity, and better suitable cell viability.
DOI: 10.6084/m9.figshare.11314226.v1
title: Lean Mentorship: Fitting external support to entrepreneur needs over the startup development

description: Abstract Paper aims The present paper aims at exploring aspects of the mentoring process within the practice of technology entrepreneurship, also postulating a new concept, the lean mentorship. Originality Although literature examines the effects and nature of mentoring in a variety of contexts, this study pioneers by addressing the mentorship process from the lean startup perspective. Research method The study was structured as an exploratory research, drawing on extant literature and a focus group comprised of scholars and practitioners with key roles within an entrepreneurial and innovation ecosystem. The group’s discussion was analyzed along with extant literature. Main findings The paper further debates and provides insightful perceptions of the key characteristics of the mentorship process, such as the roles of mentors and mentees, the differences and similarities with coaching, and aspects mentorship providers should consider before exposing entrepreneurs. Implications for theory and practice The main practical and theoretical contributions of this research are exactly the pioneering nature with regard to the lean startup perspective concerning mentoring. Additionally, conclusions suggests that mentoring providers should engage in experimentations to identify the moment in which entrepreneurs will best benefit from the provision, also mitigating waste of resources, such as time and expenses.
DOI: 10.6084/m9.figshare.11314217.v1
title: Biosynthesis and Functionalization of Bacterial Cellulose Membranes with Cerium Nitrate and Silver Nanoparticles

description: This work aimed to synthesize bacterial cellulose (BC) membranes functionalized with Ce(NO3)3 and silver nanoparticles (AgNPs) heat-treated in oven and autoclave. The AgNPs were characterized by TEM and the membranes were characterized by their rehydration capacity, Thermogravimetric Analysis (TGA), Scanning Electron Microscopy with Dispersive Energy Spectroscopy (SEM/EDS), Wide-angle X-ray Diffractometry (XRD), Atomic Absorption Spectroscopy (AAS), antimicrobial activity and cytotoxicity. The BC membranes were white to light yellow or brown indicating functionalization with AgNps with 20 nm. XRD detected a decrease in the degree of crystallinity in functionalized membranes. The autoclaved samples exhibited the largest porosity and good rehydration capacity. AAS showed Ag presence in all samples. The best antibacterial activity was achieved for the membrane’s oven treated with 40 ppm of AgNPs. Among the functionalized membranes, the most recommended to be used as burn dressing is the Ag40A and Ag20CN1.1A since they showed good porosity, good antimicrobial activity, and better suitable cell viability.
DOI: 10.6084/m9.figshare.11314208
title: Studies and research of and about the body: the production of ProPosições (1990-2018)

description: Abstract Studies and research of and about the body have very recently become subject of investigation in the human sciences and also in the field of education. This article aims to present the production of the journal Pro-Posições, related to studies and research on this topic, developed from different approaches and theoretical frameworks, from 1990 to 2018. This production was searched by title, abstract, and keywords, using the following descriptors: corpo (body); cuerpo (body); educação física (physical education); ginástic (gymnastic); gímnic (gymn); dança (dance); esport (sport); lazer (leisure); recrea (recreation). It was possible to identify a significant set of 105 publications covering articles, presentations, reviews, and other texts, which are part of the different sections of the journal. This shows that this journal is tuned to emerging, original, and/or little-considered topics, and it can be recognized as a publication of the education area that is strongly open to broad and qualified dialogue.
DOI: 10.6084/m9.figshare.11314211
title: Reading propositions: a perspective of the archive of production in the fields of Philosophy and Philosophy of Education in the 30 years of the Brazilian journal Pro-Posições

description: Abstract In this article we aim to collect and comment on the production in the fields of Philosophy and of Philosophy of Education published during the 30 years of the Pro-Posições journal. To do so, we organized into three thematic parts a set of thematic occurrences that are present, at the same time, in three decades of publications. The first decade covers the years from 1990 to 1999, highlighting the theme of Education and its republican value in the Brazilian redemocratization, with emphasis on critical thinking; the second decade, between 2000 and 2009, brings to light a series of analyses concerning the millenary challenges for the field of Education, mainly the ethical-political problematization of society in general; the last decade, from 2010 to 2018, evidences the increase of the presence of Philosophy and Philosophy of Education in the field of Education, entailing themes such as differences, inclusion, and subjectivities. Besides observing that Philosophy and Philosophy of Education are remarkable fields over the 30 years of the Pro-Posições journal, we argue that the same problematizations of all three decades of publication are urgent for reiterating one of the struggles of critical thinking in the defense of the republican Education and of its democratic principles, in addition to drawing attention to the urgency of the place of differences and multiplicities in the field of Education.
DOI: 10.6084/m9.figshare.11314202
title: Microstructure and Thermal Analyses of Cu87-xAl13Nbx High-Temperature Shape Memory Alloys

description: This paper presents a thermal and microstructural characterization of Cu87-xAl13Nbx (wt%) high temperature shape memory alloys (HTSMA), with Nb contents ranging from 1 to 3%. The alloys were obtained by arc melting under argon atmosphere. Thermal characterization was performed by differential scanning calorimetry (DSC), revealing that the phase martensitic transformation of all the studied alloys occurs in the range of 200 ºC to 450 ºC. Thermal cycling in this temperature range caused the martensitic transformation to disappear after approximately 6 cycles. However, a new heat treatment at 850 ºC followed by water quenching causes the martensitic transformation to be recovered. Microstructural characterization was performed using optical microscopy (OM) and scanning electron microscopy (SEM), revealing the presence of Nb precipitates in a Cu-Al martensitic matrix, mainly in the Nb-rich compositions. These different microstructures with Nb particles cause a hardness variation that initially decreases between 0.5 %Nb (275HV) and 1.0 %Nb (225HV), then increasing continuously up to 3.0% Nb (380HV).