cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6273215.v1
title: Evaluation of the hydraulic performance of an urban stormwater drainage system

description: ABSTRACT The lack of effective planning and integration between the urban infrastructure administrations associated with the widespread soil development provokes surcharge over the storm sewer pipe network. This work aimed to assess the hydraulic performance of an urban stormwater sewer pipe network located at the main campus of the State University of Campinas, São Paulo, Brazil, in such a manner that it is possible to identify those surcharged reaches and eventually local floods. Since flow rates are not available in urban watersheds, the overland flow was estimated by rainfall-runoff transformation methods. Next, the steady state hydraulic analysis was used to estimate the hydraulic heads in the pipe network. Hydraulic performance index, the ratio of overcharge in each pipe network segment and the hydraulic contribution matrix showed what segments cause each manhole surge. The results for the five-years return period rainfall show that there are at least 12 manhole surge locations in the area, which are vulnerable to local floods. In this sense, the hydraulic performance index and the contribution matrix may be important instruments also for an eventual rehabilitation work to the stormwater sewer pipe network in this area.
DOI: 10.6084/m9.figshare.6273203
title: Epidemiological and clinical profile of patients with Chagas disease in the Central-North area of Paraná, Southern Brazil

description: Abstract INTRODUCTION Profiles of patients with Chagas disease in Paraná were studied. METHODS A descriptive, questionnaire-based study was performed. RESULTS Of 270 participants, 64% were female, 60% were aged ≥65 years, 91% were infected via vector transmission, and 44% were infected in Paraná. Indeterminate (30%), cardiac (36%), cardiodigestive (20%) and digestive (14%) forms were found. CONCLUSIONS: Patients who were older than 65 years of age, retired, female, living in the urban area of Maringá, and infected by vector transmission in childhood in Paraná presented cardiac and digestive signs and did not receive etiological treatment when first diagnosed.
DOI: 10.6084/m9.figshare.6273203.v1
title: Epidemiological and clinical profile of patients with Chagas disease in the Central-North area of Paraná, Southern Brazil

description: Abstract INTRODUCTION Profiles of patients with Chagas disease in Paraná were studied. METHODS A descriptive, questionnaire-based study was performed. RESULTS Of 270 participants, 64% were female, 60% were aged ≥65 years, 91% were infected via vector transmission, and 44% were infected in Paraná. Indeterminate (30%), cardiac (36%), cardiodigestive (20%) and digestive (14%) forms were found. CONCLUSIONS: Patients who were older than 65 years of age, retired, female, living in the urban area of Maringá, and infected by vector transmission in childhood in Paraná presented cardiac and digestive signs and did not receive etiological treatment when first diagnosed.
DOI: 10.6084/m9.figshare.6273200
title: Color removal in the combined treatment of landfill leachate and domestic sewage via PACT ® process

description: ABSTRACT Sixteen batch reactors fed with different mixtures of landfill leachate combined with synthetic wastewater were treated using the PACT® process (activated sludge process plus powdered activated carbon addition - PAC). The objective was to measure the color removal using two mathematical adjustments: the first adjustment combined the variables PAC concentration (0 to 6 g.L-1) and landfill leachate concentration in the wastewater (0 to 10%, in volume); and the second model combined PAC concentration and the influent color (276 to 1,199 uH). The response surface methodology was used to describe the response of both adjustments. The results indicated that as the proportion of leachate was increased up to 5%, higher PAC concentrations resulted in a better color removal in the reactors. When the leachate proportion was 10%, the reactors were less efficacious, except for the one with 6 g.L-1, which presented the highest color removal within the experiment.
DOI: 10.6084/m9.figshare.6273197
title: Trends in the annual rainfall and temperatures series in Brazil

description: ABSTRACT In recent decades, scientific and academic researchers around the world have been concerned with the assessment of regional and global climate trends. The assessment of changes in the climate system is a planning tool for society as it enables the consideration of possible consequences from the increasing air temperature and changes in precipitation that have been observed around the world. Under the hypothesis of climate change presence in Brazil, the aim of this study was to verify the presence of climate trends in 243 annual data from Brazilian cities of maximum, minimum and average air temperatures and rainfall. The Mann-Kendall (M-K.) and the Pettitt (Pett.) tests were applied in order to evaluate the presence of significant trends. Maps were developed for the spatial visualization of the observed trends. The statistical results show that, from all the studied cities, increasing trends in maximum temperature were observed in 35% of the series, decreasing in 1% and no trends were observed in 64%. For the minimum temperature, increasing trends were observed in 30% of the studied series, decreasing in 8% and no trends in 63%. For the average temperature, increasing trends were observed in 35%, decreasing in 3% and no trends in 62%. For rainfall, increasing trends were observed in 6%, decreasing in 4% and no trends in 91%. The observed trends may be related to the anthropic activities like urban expansion, industrial development and the increasing population density in each studied city.
DOI: 10.6084/m9.figshare.6273200.v1
title: Color removal in the combined treatment of landfill leachate and domestic sewage via PACT ® process

description: ABSTRACT Sixteen batch reactors fed with different mixtures of landfill leachate combined with synthetic wastewater were treated using the PACT® process (activated sludge process plus powdered activated carbon addition - PAC). The objective was to measure the color removal using two mathematical adjustments: the first adjustment combined the variables PAC concentration (0 to 6 g.L-1) and landfill leachate concentration in the wastewater (0 to 10%, in volume); and the second model combined PAC concentration and the influent color (276 to 1,199 uH). The response surface methodology was used to describe the response of both adjustments. The results indicated that as the proportion of leachate was increased up to 5%, higher PAC concentrations resulted in a better color removal in the reactors. When the leachate proportion was 10%, the reactors were less efficacious, except for the one with 6 g.L-1, which presented the highest color removal within the experiment.
DOI: 10.6084/m9.figshare.6273197.v1
title: Trends in the annual rainfall and temperatures series in Brazil

description: ABSTRACT In recent decades, scientific and academic researchers around the world have been concerned with the assessment of regional and global climate trends. The assessment of changes in the climate system is a planning tool for society as it enables the consideration of possible consequences from the increasing air temperature and changes in precipitation that have been observed around the world. Under the hypothesis of climate change presence in Brazil, the aim of this study was to verify the presence of climate trends in 243 annual data from Brazilian cities of maximum, minimum and average air temperatures and rainfall. The Mann-Kendall (M-K.) and the Pettitt (Pett.) tests were applied in order to evaluate the presence of significant trends. Maps were developed for the spatial visualization of the observed trends. The statistical results show that, from all the studied cities, increasing trends in maximum temperature were observed in 35% of the series, decreasing in 1% and no trends were observed in 64%. For the minimum temperature, increasing trends were observed in 30% of the studied series, decreasing in 8% and no trends in 63%. For the average temperature, increasing trends were observed in 35%, decreasing in 3% and no trends in 62%. For rainfall, increasing trends were observed in 6%, decreasing in 4% and no trends in 91%. The observed trends may be related to the anthropic activities like urban expansion, industrial development and the increasing population density in each studied city.
DOI: 10.6084/m9.figshare.6273188
title: Investigation of the effect of gestational diabetes on fetal cardiac tissue in streptozotocin ınduced in rats

description: Abstract Purpose: To investigate the cause of congenital anomalies resulted from gestational diabetes on fetal cardiac tissue in experimental animal study model. Methods: Totally 12 female Wistar albino rats were divided into two groups, each consisting of 6 rats. Streptozotocin (60 mg/kg) was administered intraperitoneally to the study group by dissolving in citrate solution. The rats with a blood glucose level of 200 mg/dL and above were considered to be diabetic rats. Total antioxidant status (TAS), total oxidative stress (TOS) and oxidative stress index (OSI) values were calculated in the cardiac tissues and maternal serum samples of the fetuses delivered by cesarean section after the mating process. The cardiac tissues were also subjected to histopathological examination. Results: TOS and OSI values in fetal cardiac tissues of the diabetic rats were found to be significantly higher than that of the control group (p=0.026 and p=0.005). Histopathological examination revealed that the mitotic index was lower and the cell organization was found to be damaged in the fetuses of the study group rats. Conclusion: Increased levels of free oxygen radicals considered to be due to hyperglycemia may cause congenital anomalies, especially during organogenesis period, by disrupting cell homeostasis and adversely affecting mitosis.
DOI: 10.6084/m9.figshare.6273188.v1
title: Investigation of the effect of gestational diabetes on fetal cardiac tissue in streptozotocin ınduced in rats

description: Abstract Purpose: To investigate the cause of congenital anomalies resulted from gestational diabetes on fetal cardiac tissue in experimental animal study model. Methods: Totally 12 female Wistar albino rats were divided into two groups, each consisting of 6 rats. Streptozotocin (60 mg/kg) was administered intraperitoneally to the study group by dissolving in citrate solution. The rats with a blood glucose level of 200 mg/dL and above were considered to be diabetic rats. Total antioxidant status (TAS), total oxidative stress (TOS) and oxidative stress index (OSI) values were calculated in the cardiac tissues and maternal serum samples of the fetuses delivered by cesarean section after the mating process. The cardiac tissues were also subjected to histopathological examination. Results: TOS and OSI values in fetal cardiac tissues of the diabetic rats were found to be significantly higher than that of the control group (p=0.026 and p=0.005). Histopathological examination revealed that the mitotic index was lower and the cell organization was found to be damaged in the fetuses of the study group rats. Conclusion: Increased levels of free oxygen radicals considered to be due to hyperglycemia may cause congenital anomalies, especially during organogenesis period, by disrupting cell homeostasis and adversely affecting mitosis.
DOI: 10.6084/m9.figshare.6273182
title: Complement activation in atypical hemolytic uremic syndrome and scleroderma renal crisis: a critical analysis of pathophysiology

description: ABSTRACT Scleroderma is an autoimmune disease that affects multiple systems. While pathophysiologic mechanisms governing the development of scleroderma are relatively poorly understood, advances in our understanding of the complement system are clarifying the role of complement pathways in the development of atypical hemolytic uremic syndrome and scleroderma renal crisis. The abundant similarities in their presentation as well as the clinical course are raising the possibility of a common underlying pathogenesis. Recent reports are emphasizing that complement pathways appear to be the unifying link. This article reviews the role of complement system in the development of atypical hemolytic uremic syndrome and scleroderma renal crisis, and calls for heightened awareness to the development of thrombotic angiopathy in patients with scleroderma.
DOI: 10.6084/m9.figshare.6273182.v1
title: Complement activation in atypical hemolytic uremic syndrome and scleroderma renal crisis: a critical analysis of pathophysiology

description: ABSTRACT Scleroderma is an autoimmune disease that affects multiple systems. While pathophysiologic mechanisms governing the development of scleroderma are relatively poorly understood, advances in our understanding of the complement system are clarifying the role of complement pathways in the development of atypical hemolytic uremic syndrome and scleroderma renal crisis. The abundant similarities in their presentation as well as the clinical course are raising the possibility of a common underlying pathogenesis. Recent reports are emphasizing that complement pathways appear to be the unifying link. This article reviews the role of complement system in the development of atypical hemolytic uremic syndrome and scleroderma renal crisis, and calls for heightened awareness to the development of thrombotic angiopathy in patients with scleroderma.
DOI: 10.6084/m9.figshare.6273176
title: Allometric equations for total, above- and below-ground biomass and carbon of the Amazonian forest type known as campinarana

description: ABSTRACT The Amazon forest comprises many different forest types, amongst them are campinas and campinaranas, which occur on Amazonian sandy soils, representing 2.65% of Amazonian territory. An understanding of the ecology and quantification of the environmental goods and services of campinaranas is key to their conservation. Based on a direct method to estimate biomass and carbon content of campinarana, we harvested and weighted 89 trees and other forest components in ten randomly allocated plots of 100 m2 (10 x 10 m) and 11 additional trees outside the plots. The data allowed us to describe how biomass is distributed amongst campinarana vegetation and amongst tree compartments. We developed allometric equations to estimate the total, above- and below-ground biomass and carbon stock of this forest type. We used a Weibull function to test if the diameter distribution of the individual trees sampled was consistent with the diameter distribution of the forest type. We also tested if terra-firme forest biomass equations could be used to estimate campinarana biomass, and whether a correction factor based on dominant height would reduce the error from these estimates. Allometric equations are considered to be the most reliable and rapid method for calculating forest biomass, and are used in forest management and climate change studies. These are the first total biomass equations developed for central Amazonian campinaranas. The best fitted allometric equation for total fresh biomass was: ln (Total Biomass) = -1.373 + 2.546 * ln DBH (R ² = 0.98, Sxy% = 4.19%).
DOI: 10.6084/m9.figshare.6273176.v1
title: Allometric equations for total, above- and below-ground biomass and carbon of the Amazonian forest type known as campinarana

description: ABSTRACT The Amazon forest comprises many different forest types, amongst them are campinas and campinaranas, which occur on Amazonian sandy soils, representing 2.65% of Amazonian territory. An understanding of the ecology and quantification of the environmental goods and services of campinaranas is key to their conservation. Based on a direct method to estimate biomass and carbon content of campinarana, we harvested and weighted 89 trees and other forest components in ten randomly allocated plots of 100 m2 (10 x 10 m) and 11 additional trees outside the plots. The data allowed us to describe how biomass is distributed amongst campinarana vegetation and amongst tree compartments. We developed allometric equations to estimate the total, above- and below-ground biomass and carbon stock of this forest type. We used a Weibull function to test if the diameter distribution of the individual trees sampled was consistent with the diameter distribution of the forest type. We also tested if terra-firme forest biomass equations could be used to estimate campinarana biomass, and whether a correction factor based on dominant height would reduce the error from these estimates. Allometric equations are considered to be the most reliable and rapid method for calculating forest biomass, and are used in forest management and climate change studies. These are the first total biomass equations developed for central Amazonian campinaranas. The best fitted allometric equation for total fresh biomass was: ln (Total Biomass) = -1.373 + 2.546 * ln DBH (R ² = 0.98, Sxy% = 4.19%).
DOI: 10.6084/m9.figshare.6273170
title: Study of Glass Forming on Cu60.0Zr32.5Ti7.5 Alloy by Molecular Dynamics Simulation

description: This paper presents the results of Molecular Dynamics (MD) simulations of Cu60.0Zr32.5Ti7.5 alloy through the open source code LAMMPS. Amorphous samples were produced by quenching the molten metal from 2300 to 300 K. The pair distribution functions of the liquid and solid were calculated. Moreover, the atomic short-range order at 800, 700 and 300 K was obtained by using the Voronoi tesselation method. Cu-centered icosahedral clusters were the prevailing configuration. The tensile stress-strain curve showed that the material present plastic deformation, however, shear bands were not observed in the MD simulation. The evolution of viscosity in temperatures higher than its glass transition temperature was also determined. Furthermore, the fragility of the alloy at glass temperature was evaluated.
DOI: 10.6084/m9.figshare.6273167
title: Microstructural Assessment of Magnetite Nanoparticles (Fe3O4) Obtained by Chemical Precipitation Under Different Synthesis Conditions

description: Magnetite nanosized particles synthesis was achieved by two different routes. Assessment of microstructure was carried out aiming at comparing the outcome of synthesis parameters on the crystallinity, distribution of particle dimension and magnetic activity of nanosized particles precipitated in aqueous solution. Increasing of the nanoparticles crystallite size by stirring could be evidenced by the results. Temperature does not significantly affect crystallite size and crystallinity. The type of precursor was the factor that most contributed to the definition of crystallinity and particle size distribution. The route which used FeSO4.7H2O as precursor favored large crystallite sizes and crystallinity, while the route which used Fe2SO4.7H2O and FeCl3.6H2O as precursors resulted in much smaller crystallite sizes and crystallinity.
DOI: 10.6084/m9.figshare.6273170.v1
title: Study of Glass Forming on Cu60.0Zr32.5Ti7.5 Alloy by Molecular Dynamics Simulation

description: This paper presents the results of Molecular Dynamics (MD) simulations of Cu60.0Zr32.5Ti7.5 alloy through the open source code LAMMPS. Amorphous samples were produced by quenching the molten metal from 2300 to 300 K. The pair distribution functions of the liquid and solid were calculated. Moreover, the atomic short-range order at 800, 700 and 300 K was obtained by using the Voronoi tesselation method. Cu-centered icosahedral clusters were the prevailing configuration. The tensile stress-strain curve showed that the material present plastic deformation, however, shear bands were not observed in the MD simulation. The evolution of viscosity in temperatures higher than its glass transition temperature was also determined. Furthermore, the fragility of the alloy at glass temperature was evaluated.
DOI: 10.6084/m9.figshare.6273167.v1
title: Microstructural Assessment of Magnetite Nanoparticles (Fe3O4) Obtained by Chemical Precipitation Under Different Synthesis Conditions

description: Magnetite nanosized particles synthesis was achieved by two different routes. Assessment of microstructure was carried out aiming at comparing the outcome of synthesis parameters on the crystallinity, distribution of particle dimension and magnetic activity of nanosized particles precipitated in aqueous solution. Increasing of the nanoparticles crystallite size by stirring could be evidenced by the results. Temperature does not significantly affect crystallite size and crystallinity. The type of precursor was the factor that most contributed to the definition of crystallinity and particle size distribution. The route which used FeSO4.7H2O as precursor favored large crystallite sizes and crystallinity, while the route which used Fe2SO4.7H2O and FeCl3.6H2O as precursors resulted in much smaller crystallite sizes and crystallinity.
DOI: 10.6084/m9.figshare.6273164
title: Menthol-loaded PLGA Micro and Nanospheres: Synthesis, Characterization and Degradation in Artificial Saliva

description: Menthol-loaded PLGA micro/nanospheres were synthesized using the multiple emulsion/solvent evaporation technique. Parameters such as stirring rate, external surfactant content, PLGA/menthol weight ratio, solvent evaporation and lyophilization time were evaluated as well as the degradation of micro/nanospheres in an artificial saliva medium. The menthol/PLGA micro/nanospheres thus obtained had a size distribution of between 217 nm and 13 µm and particles with spherical and dense morphology were evidenced by SEM micrographs. FTIR and TGA data showed an increase up to 60% of menthol incorporated in the micro/nanoparticles. The degradation of menthol-loaded PLGA micro/nanoparticles in artificial saliva significantly affected the particles morphology and appears to be an effective medium for releasing menthol.
DOI: 10.6084/m9.figshare.6273164.v1
title: Menthol-loaded PLGA Micro and Nanospheres: Synthesis, Characterization and Degradation in Artificial Saliva

description: Menthol-loaded PLGA micro/nanospheres were synthesized using the multiple emulsion/solvent evaporation technique. Parameters such as stirring rate, external surfactant content, PLGA/menthol weight ratio, solvent evaporation and lyophilization time were evaluated as well as the degradation of micro/nanospheres in an artificial saliva medium. The menthol/PLGA micro/nanospheres thus obtained had a size distribution of between 217 nm and 13 µm and particles with spherical and dense morphology were evidenced by SEM micrographs. FTIR and TGA data showed an increase up to 60% of menthol incorporated in the micro/nanoparticles. The degradation of menthol-loaded PLGA micro/nanoparticles in artificial saliva significantly affected the particles morphology and appears to be an effective medium for releasing menthol.
DOI: 10.6084/m9.figshare.6273161
title: "Um retumbante Orfeu de Carapinha" no centro de São Paulo: a luta pela construção do monumento a Luiz Gama

description: Abstract In this article, we investigate the erection of the first public monument in honor of a black leader build in São Paulo: the bust of Luiz Gama, located in downtown Largo do Arouche. We analyzed the campaign for its erection, the artistic concept of the bust, the difficulties faced by those who directed the initiative in the face of obstacles posed by the public authorities. The entire process, which took place between 1929 and 1931, was carried out by the black-owned press, more specifically by the directors of the newspaper Progresso, independently. In detailing the struggle to bring about the homage, revealing important aspects of the relationship between the black-owned press and the city, this study seeks to demonstrate the strong identity content of the initiative, as well as to specify the dates of the construction and inauguration of the monument.