cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.21076192.v1
title: Rheological characterization of rhea (Rhea americana) eggs subjected to different storage periods

description: Abstract Eggs are used as food industry ingredients due to their functional properties. Eggs from different bird species are used in industrial processing; therefore, rheological experiments were carried out at steady state to obtain the flow curves and also at a dynamic state to study the rheological properties of greater rhea eggs. The viscoelastic behavior of the fluids as a function of the coagulation temperatures for albumen and yolk and of the oscillatory shear frequency was studied. Fifteen rhea eggs stored for up to 28 days at 10 °C were analyzed at 1, 7, 14, 21, and 28 days. The albumen and yolk fractions showed pseudoplastic rheological behavior with small initial flow shear and dependence on shear time, with albumen demonstrating thixotropy and the yolk showing rheopexy. In low shear rheological tests, thermal gelation of albumen was observed, presenting a first change in the elastic modulus around 56 °C, and a second from 78 °C. In the yolk, a change was observed from 66 °C, with more structural variations in the development of the gel at higher temperatures. For rhea eggs, the gel structuring (gelation) temperature of albumen (80 °C) and egg yolk (69 °C) did not undergo variations during the storage periods. Compared to commercial eggs, the higher viscosity and gelation temperatures presented by the rhea eggs can help determine the size of the industrial processing system as they can be submitted to higher temperatures without modifying protein structures and hindering the process.
DOI: 10.6084/m9.figshare.21076193
title: Combined effects of bone morphogenetic protein-7 and mineral trioxide aggregate on the proliferation, migration, and differentiation of human dental pulp stem cells

description: Abstract Bioactive molecules present the potential to be used along with biomaterials in vital pulp therapy and regenerative endodontic treatment. Objective The aim of this study was to assess the effects of the combined use of bone morphogenetic protein-7 (BMP-7) and mineral trioxide aggregate (MTA) on the proliferation, migration, and differentiation of human dental pulp stem cells (DPSCs). Methodology For the proliferation analysis, DPSCs were incubated with a growth medium and treated with MTA and/or BMP-7 at different concentrations. For the following analyses, DPSCs were incubated with a differentiation medium and treated with MTA and/or BMP-7. Moreover, there were groups in which DPSCs were incubated with the growth medium (control), the differentiation medium, or DMEM/F12 containing fetal bovine serum, and not treated with MTA or BMP-7. Cell proliferation was analyzed using the WST-1 assay. The odontogenic/osteogenic differentiation was evaluated by immunocytochemistry, alkaline phosphatase (ALP) activity assay, alizarin red staining, and reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell migration was evaluated using a wound-healing assay. Data were analyzed using analysis of variance and Tukey test (p=0.05). Results The use of BMP-7 with MTA presented no significant effect on cell proliferation in comparison with the treatment with MTA alone (p&gt;0.05), but showed higher ALP activity, increased mineralization, and higher expression of DMP1 and DSPP when compared with other groups (p&lt;0.05). Nestin expression was higher in the control group than in groups treated with MTA and/or BMP-7 (p&lt;0.05). The cell migration rate increased after treatment with MTA when compared with other groups in all periods of time (p&lt;0.05). At 72 hours, the wound area was smaller in groups treated with MTA and/or BMP-7 than in the control group (p&lt;0.05). Conclusion The use of BMP-7 with MTA increased odontogenic/osteogenic differentiation without adversely affecting proliferation and migration of DPSCs. The use of BMP-7 with MTA may improve treatment outcomes by increasing repair and regeneration capacity of DPSCs.
DOI: 10.6084/m9.figshare.21076193.v1
title: Combined effects of bone morphogenetic protein-7 and mineral trioxide aggregate on the proliferation, migration, and differentiation of human dental pulp stem cells

description: Abstract Bioactive molecules present the potential to be used along with biomaterials in vital pulp therapy and regenerative endodontic treatment. Objective The aim of this study was to assess the effects of the combined use of bone morphogenetic protein-7 (BMP-7) and mineral trioxide aggregate (MTA) on the proliferation, migration, and differentiation of human dental pulp stem cells (DPSCs). Methodology For the proliferation analysis, DPSCs were incubated with a growth medium and treated with MTA and/or BMP-7 at different concentrations. For the following analyses, DPSCs were incubated with a differentiation medium and treated with MTA and/or BMP-7. Moreover, there were groups in which DPSCs were incubated with the growth medium (control), the differentiation medium, or DMEM/F12 containing fetal bovine serum, and not treated with MTA or BMP-7. Cell proliferation was analyzed using the WST-1 assay. The odontogenic/osteogenic differentiation was evaluated by immunocytochemistry, alkaline phosphatase (ALP) activity assay, alizarin red staining, and reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Cell migration was evaluated using a wound-healing assay. Data were analyzed using analysis of variance and Tukey test (p=0.05). Results The use of BMP-7 with MTA presented no significant effect on cell proliferation in comparison with the treatment with MTA alone (p&gt;0.05), but showed higher ALP activity, increased mineralization, and higher expression of DMP1 and DSPP when compared with other groups (p&lt;0.05). Nestin expression was higher in the control group than in groups treated with MTA and/or BMP-7 (p&lt;0.05). The cell migration rate increased after treatment with MTA when compared with other groups in all periods of time (p&lt;0.05). At 72 hours, the wound area was smaller in groups treated with MTA and/or BMP-7 than in the control group (p&lt;0.05). Conclusion The use of BMP-7 with MTA increased odontogenic/osteogenic differentiation without adversely affecting proliferation and migration of DPSCs. The use of BMP-7 with MTA may improve treatment outcomes by increasing repair and regeneration capacity of DPSCs.
DOI: 10.6084/m9.figshare.21076196.v1
title: Effects of Diversification on Profitability and Operating Risk for Brazilian Publicly Traded Companies

description: Abstract This study analyzed the effect of industrial and international diversification on the profitability and operational risk of Brazilian companies. The sample comprised 210 publicly traded Brazilian companies, who trade shares on the B3 stock exchange. The results of the study showed that industrially diversified companies both reduce operational risk and increase profitability in terms of return on assets, while companies that are internationally diversified reduce their profitability. As well, the companies that diversify both industrially and internationally, see increasedoperational risk. This study is relevant to the investigation of the relationship of industrial and international diversification in companies' operating results, as it indicates that, in the context of Brazil, industrial diversification tends to improve operating results, with an increase in profitability and a reduction in operating risk.
DOI: 10.6084/m9.figshare.21076196
title: Effects of Diversification on Profitability and Operating Risk for Brazilian Publicly Traded Companies

description: Abstract This study analyzed the effect of industrial and international diversification on the profitability and operational risk of Brazilian companies. The sample comprised 210 publicly traded Brazilian companies, who trade shares on the B3 stock exchange. The results of the study showed that industrially diversified companies both reduce operational risk and increase profitability in terms of return on assets, while companies that are internationally diversified reduce their profitability. As well, the companies that diversify both industrially and internationally, see increasedoperational risk. This study is relevant to the investigation of the relationship of industrial and international diversification in companies' operating results, as it indicates that, in the context of Brazil, industrial diversification tends to improve operating results, with an increase in profitability and a reduction in operating risk.
DOI: 10.6084/m9.figshare.21076199
title: Canine transmissible venereal tumor with spontaneous remission: case study with emphasis on clinical and cytopathological exams to monitor tumor evolution

description: Abstract The canine transmissible venereal tumor (TVTC) is a neoplasm transmitted mainly through copulation and with a high incidence in stray dogs in Brazil. In the process of tumor evolution of TVTC, the progression, stationary and regression phases are recognized. The host immunity is related to the disease’s biological behavior, however, spontaneous regression observation in cases of naturally occurring TVTC is uncommon. A canine patient was attended, after beeing rescued from the street, due to an ulcerated mass in the external genitália and tick infestation. Cytopathological examination, which diagnosed TVTC, and laboratory tests that showed mild anemia and severe thrombocytopenia were performed. In view of the impossibility of carrying out other exams, it was made the presumptive diagnosis of canine monocytic ehrlichiosis (CME), and treatment was instituted. During follow-up it was observed quick improvement in clinical signs and laboratory changes, as well as a reduction in tumor mass. A new cytopathological evaluation was carried out, and was verified increase in mature lymphocytes and plasmocytes in the midst of the tumor cells, finding compatible with the stationary phase of the disease. From that moment on, it was decided to perform only clinical and cytopathological follow-up. In the following evaluations, continuous clinical remission and cytopathological findings compatible with those described in the regression phase were observed, until its complete remission. It is considered that the improvement in the general health of the patient after the treatment of CME is related to the spontaneous regression of TVTC, and that simultaneous performance of serial clinical and cytopathological exams may be feasible and useful for monitoring the stages of evolution of TVTC.
DOI: 10.6084/m9.figshare.21076199.v1
title: Canine transmissible venereal tumor with spontaneous remission: case study with emphasis on clinical and cytopathological exams to monitor tumor evolution

description: Abstract The canine transmissible venereal tumor (TVTC) is a neoplasm transmitted mainly through copulation and with a high incidence in stray dogs in Brazil. In the process of tumor evolution of TVTC, the progression, stationary and regression phases are recognized. The host immunity is related to the disease’s biological behavior, however, spontaneous regression observation in cases of naturally occurring TVTC is uncommon. A canine patient was attended, after beeing rescued from the street, due to an ulcerated mass in the external genitália and tick infestation. Cytopathological examination, which diagnosed TVTC, and laboratory tests that showed mild anemia and severe thrombocytopenia were performed. In view of the impossibility of carrying out other exams, it was made the presumptive diagnosis of canine monocytic ehrlichiosis (CME), and treatment was instituted. During follow-up it was observed quick improvement in clinical signs and laboratory changes, as well as a reduction in tumor mass. A new cytopathological evaluation was carried out, and was verified increase in mature lymphocytes and plasmocytes in the midst of the tumor cells, finding compatible with the stationary phase of the disease. From that moment on, it was decided to perform only clinical and cytopathological follow-up. In the following evaluations, continuous clinical remission and cytopathological findings compatible with those described in the regression phase were observed, until its complete remission. It is considered that the improvement in the general health of the patient after the treatment of CME is related to the spontaneous regression of TVTC, and that simultaneous performance of serial clinical and cytopathological exams may be feasible and useful for monitoring the stages of evolution of TVTC.
DOI: 10.6084/m9.figshare.21076198
title: Rheological properties and hydration of ternary cements containing clay brick, clay tile, marble, and phosphogypsum waste

description: Abstract No research demonstrates the effect of combined waste raw materials as an alternative to natural sources in Limestone Calcined Clay Cement (LC3). In this context, this study aimed to evaluate the influence of the composition of ternary cements (TCs) containing industrial waste on their rheological and hydration properties. As raw materials, Portland cement and clay brick (CBW), clay tile (CTW), marble (MW), and phosphogypsum (PG) wastes were used. The rheological behaviour of the pastes was analysed by the mini-slump evolution over time and rotational rheometry. Hydration was evaluated by isothermal calorimetry and XRD/Rietveld. An increase in the specific surface area enhances the yield stress and plastic viscosity of the paste. CBW and CTW have pozzolanic reactivity, presenting an increase in the content of non-crystalline phases, including calcium silicate hydrate (C-S-H). The TCs reached at least 70% of the compressive strength of theHigh Early Strength Portland cement paste.The results suggest that CBW, CTW, MW and PG can be used as an alternative to reduce the clinker factor and decrease the environmental and economic impacts associated with extracting natural raw materials for cement production.
DOI: 10.6084/m9.figshare.21076198.v1
title: Rheological properties and hydration of ternary cements containing clay brick, clay tile, marble, and phosphogypsum waste

description: Abstract No research demonstrates the effect of combined waste raw materials as an alternative to natural sources in Limestone Calcined Clay Cement (LC3). In this context, this study aimed to evaluate the influence of the composition of ternary cements (TCs) containing industrial waste on their rheological and hydration properties. As raw materials, Portland cement and clay brick (CBW), clay tile (CTW), marble (MW), and phosphogypsum (PG) wastes were used. The rheological behaviour of the pastes was analysed by the mini-slump evolution over time and rotational rheometry. Hydration was evaluated by isothermal calorimetry and XRD/Rietveld. An increase in the specific surface area enhances the yield stress and plastic viscosity of the paste. CBW and CTW have pozzolanic reactivity, presenting an increase in the content of non-crystalline phases, including calcium silicate hydrate (C-S-H). The TCs reached at least 70% of the compressive strength of theHigh Early Strength Portland cement paste.The results suggest that CBW, CTW, MW and PG can be used as an alternative to reduce the clinker factor and decrease the environmental and economic impacts associated with extracting natural raw materials for cement production.
DOI: 10.6084/m9.figshare.21076201.v1
title: Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces

description: Abstract This work aims at investigating the charge transfer resistance (RCT) of the two membranes derived from vegetable oils which are intended to protect materials against corrosion. The membranes were characterized by thickness measurement (328±1 μm and 491± 1 μm), atomic force microscopy (AFM) to estimate of roughness (&lt;0.5 μm), Raman spectroscopy while the RCT values were evaluated by electrochemical impedance spectroscopy (EIS) in 0.1 mol/L KCl solution. EIS was used to measure the impedance at low frequency (Z0.01Hz ≅ 109 Ω cm2), RCT ≅ 109 Ω cm2 and exchange current density (i0 ≅ 10-11 Ω cm2), employing simple instrumentation. The thickness of the membrane must be considered for coherent interpretation of the impedance results. The study of electrolytes permeation in membranes is important to previously estimate the lifetime offered to a substrate over the time of immersion even before being applied to the metallic surface. The impedance measurements demonstrated that the most resistant membrane to permeation presented a RCT around 2 GΩ cm2. This EIS measurements approach enables the optimization of membrane fabrication by conveniently identifying the best formulation.
DOI: 10.6084/m9.figshare.21076201
title: Assessment of Charge Transport Through Barrier Membranes Before Application on Materials Surfaces

description: Abstract This work aims at investigating the charge transfer resistance (RCT) of the two membranes derived from vegetable oils which are intended to protect materials against corrosion. The membranes were characterized by thickness measurement (328±1 μm and 491± 1 μm), atomic force microscopy (AFM) to estimate of roughness (&lt;0.5 μm), Raman spectroscopy while the RCT values were evaluated by electrochemical impedance spectroscopy (EIS) in 0.1 mol/L KCl solution. EIS was used to measure the impedance at low frequency (Z0.01Hz ≅ 109 Ω cm2), RCT ≅ 109 Ω cm2 and exchange current density (i0 ≅ 10-11 Ω cm2), employing simple instrumentation. The thickness of the membrane must be considered for coherent interpretation of the impedance results. The study of electrolytes permeation in membranes is important to previously estimate the lifetime offered to a substrate over the time of immersion even before being applied to the metallic surface. The impedance measurements demonstrated that the most resistant membrane to permeation presented a RCT around 2 GΩ cm2. This EIS measurements approach enables the optimization of membrane fabrication by conveniently identifying the best formulation.
DOI: 10.6084/m9.figshare.21076202
title: Characterization of dystocia in a herd of Holstein dairy cows in Brazil

description: Abstract The objective of this study was to characterize calvings with low and high difficulty based on the productive and reproductive performance of dairy cows. Calvings were grouped in no calving assistance, calving with low assistance, and calving with high assistance. The original data set comprised 1,902 calving records obtained from a large dairy farm in Southeast Brazil. Factor analysis was applied using the SAS® Studio 3.8 statistical program through the factor procedure, considering the Multivariate Analysis category. Milk fat (0.92–0.79) and total solids (0.91–0.80) were strongly correlated with Factor 1. Calving interval (0.87– 0.68) and the number of AI (artificial inseminations) per conception (0.87–0.71) showed high correlations with Factor 2. Milk yield (0.84–0.76) and accumulated milk yield (0.84–0.77) were strongly correlated with Factor 3. Based on the results, we conclude that the three calving scenarios were characterized by well-defined and independent factors. Cows which required a high assistance at calving showed a lower variance explained by the model for milk fat and total solids contents, calving interval, and the number of AIs per conception.
DOI: 10.6084/m9.figshare.21076202.v1
title: Characterization of dystocia in a herd of Holstein dairy cows in Brazil

description: Abstract The objective of this study was to characterize calvings with low and high difficulty based on the productive and reproductive performance of dairy cows. Calvings were grouped in no calving assistance, calving with low assistance, and calving with high assistance. The original data set comprised 1,902 calving records obtained from a large dairy farm in Southeast Brazil. Factor analysis was applied using the SAS® Studio 3.8 statistical program through the factor procedure, considering the Multivariate Analysis category. Milk fat (0.92–0.79) and total solids (0.91–0.80) were strongly correlated with Factor 1. Calving interval (0.87– 0.68) and the number of AI (artificial inseminations) per conception (0.87–0.71) showed high correlations with Factor 2. Milk yield (0.84–0.76) and accumulated milk yield (0.84–0.77) were strongly correlated with Factor 3. Based on the results, we conclude that the three calving scenarios were characterized by well-defined and independent factors. Cows which required a high assistance at calving showed a lower variance explained by the model for milk fat and total solids contents, calving interval, and the number of AIs per conception.
DOI: 10.6084/m9.figshare.21076204
title: Transparent and translucent materials on facades and their performance in natural lighting: an overview of the international context and applicability in Brazil

description: Abstract Since the 1980s, innovative transparent and translucent material technologies have been developed as a solution for issues related to thermal and luminous comfort caused by glazed facades. In this context, this article aims to present an overview of the innovative transparent and translucent materials employed on non-residential building facades, describing those which can be promising in Brazilian climates. Through the literature review, including journal articles, technical reports, theses and dissertations an overview of the main innovative materials is discussed. They can be divided into two categories: smart windows and light redirection systems. The electrochromic glazing stands out from other smart window technologies due its wider range of Solar-Heating Gain Coefficient and Light Transmission control. The micro-structured opticalcomponents are a promising technology because they allow a deeper reach of natural light into the depth of indoor environments. The conclusion of this paper is that there are still only few studies testing the applicability of these innovative materials in Brazil and that further studies are needed
DOI: 10.6084/m9.figshare.21076204.v1
title: Transparent and translucent materials on facades and their performance in natural lighting: an overview of the international context and applicability in Brazil

description: Abstract Since the 1980s, innovative transparent and translucent material technologies have been developed as a solution for issues related to thermal and luminous comfort caused by glazed facades. In this context, this article aims to present an overview of the innovative transparent and translucent materials employed on non-residential building facades, describing those which can be promising in Brazilian climates. Through the literature review, including journal articles, technical reports, theses and dissertations an overview of the main innovative materials is discussed. They can be divided into two categories: smart windows and light redirection systems. The electrochromic glazing stands out from other smart window technologies due its wider range of Solar-Heating Gain Coefficient and Light Transmission control. The micro-structured opticalcomponents are a promising technology because they allow a deeper reach of natural light into the depth of indoor environments. The conclusion of this paper is that there are still only few studies testing the applicability of these innovative materials in Brazil and that further studies are needed