cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6151544
title: Adaptation and validation of the Melbourne Decision Making Questionnaire to Brazilian Portuguese

description: Abstract Introduction: Decision making (DM) is among the most important abilities for everyday functioning. However, the most widely used measures of DM come from behavioral paradigms, whose ecological validity and standalone use has been criticized in the literature. Though these issues could be addressed by the use of DM questionnaires as a complementary assessment method, no such instruments have been validated for use in Brazilian Portuguese. Therefore, the aim of this study was to conduct the translation and validation of the Melbourne Decision Making Questionnaire (MDMQ) for use in a Brazilian population. Methods: The adaptation of the MDMQ involved the following steps: translation, back-translation, expert review and pilot study. These steps were followed by factor analysis and internal consistency measurements, which led to the exclusion of 4 items from the scale. The 18-item version of the MDMQ was then administered to a validation sample consisting of healthy adults, as well as patients with bipolar disorder (BD) and major depressive disorder (MDD). Results: The instrument displayed good internal consistency, with the hypervigilance subscale showing the lowest, though still acceptable, Cronbach's alpha value. Its factor structure was comparable to that of the original MDMQ according to confirmatory factor analysis. Nevertheless, the MDMQ was sensitive to both depression severity and the presence of MDD and BD, both of which are known to have an impact on DM ability. Conclusion: The version of the MDMQ produced in the present study may be an important addition to neuropsychological assessment batteries with a focus on DM and related abilities
DOI: 10.6084/m9.figshare.6151541
title: Water Permeability Increase in Ultrafiltration Cellulose Acetate Membrane Containing Silver Nanoparticles

description: Inorganic nanoparticles incorporation in polymer membranes for filtration processes has attracted the attention of researchers in order to improve in some ways their performance. In this work, AgNPs were synthesized "in situ" in cellulose acetate (CA) membrane by chemical reduction of a silver salt. The membranes were prepared by the nonsolvent induced phase inversion method. Asymmetric membranes without (CA-M) and with adsorbed AgNPs (CA-Ag-M) were obtained. Ultrafiltration properties were confirmed for both membranes (16 nm of average pore diameter) and average crystallite size of 21 nm for the adsorbed AgNPs was computed. Contact angle measured with Milli-Q water and dry CA-Ag-M is near zero while for the CA-M is around 80°. The CA-M showed water permeability of 214 Lh-1m-2, while the CA-Ag-M permeability was 1651 Lh-1m-2.
DOI: 10.6084/m9.figshare.6151544.v1
title: Adaptation and validation of the Melbourne Decision Making Questionnaire to Brazilian Portuguese

description: Abstract Introduction: Decision making (DM) is among the most important abilities for everyday functioning. However, the most widely used measures of DM come from behavioral paradigms, whose ecological validity and standalone use has been criticized in the literature. Though these issues could be addressed by the use of DM questionnaires as a complementary assessment method, no such instruments have been validated for use in Brazilian Portuguese. Therefore, the aim of this study was to conduct the translation and validation of the Melbourne Decision Making Questionnaire (MDMQ) for use in a Brazilian population. Methods: The adaptation of the MDMQ involved the following steps: translation, back-translation, expert review and pilot study. These steps were followed by factor analysis and internal consistency measurements, which led to the exclusion of 4 items from the scale. The 18-item version of the MDMQ was then administered to a validation sample consisting of healthy adults, as well as patients with bipolar disorder (BD) and major depressive disorder (MDD). Results: The instrument displayed good internal consistency, with the hypervigilance subscale showing the lowest, though still acceptable, Cronbach's alpha value. Its factor structure was comparable to that of the original MDMQ according to confirmatory factor analysis. Nevertheless, the MDMQ was sensitive to both depression severity and the presence of MDD and BD, both of which are known to have an impact on DM ability. Conclusion: The version of the MDMQ produced in the present study may be an important addition to neuropsychological assessment batteries with a focus on DM and related abilities
DOI: 10.6084/m9.figshare.6151541.v1
title: Water Permeability Increase in Ultrafiltration Cellulose Acetate Membrane Containing Silver Nanoparticles

description: Inorganic nanoparticles incorporation in polymer membranes for filtration processes has attracted the attention of researchers in order to improve in some ways their performance. In this work, AgNPs were synthesized "in situ" in cellulose acetate (CA) membrane by chemical reduction of a silver salt. The membranes were prepared by the nonsolvent induced phase inversion method. Asymmetric membranes without (CA-M) and with adsorbed AgNPs (CA-Ag-M) were obtained. Ultrafiltration properties were confirmed for both membranes (16 nm of average pore diameter) and average crystallite size of 21 nm for the adsorbed AgNPs was computed. Contact angle measured with Milli-Q water and dry CA-Ag-M is near zero while for the CA-M is around 80°. The CA-M showed water permeability of 214 Lh-1m-2, while the CA-Ag-M permeability was 1651 Lh-1m-2.
DOI: 10.6084/m9.figshare.6151535
title: Effect of Specimens' Shape and Size on the Determination of Compressive Strength and Deformability of Cement-lime Mortars

description: This work presents comparative analyses of the effect of specimens' shape and size on the compressive strength and modulus of elasticity of mortars. Mortar mixtures with compressive strength between 5 and 20 MPa were produced. Experimental tests determined the compressive strength of cylinder specimens of (5 x 10) cm and (10 x 20) cm, and also cubic specimens resulted of mortar's flexural strength tests, which use (4 x 4 x 16) cm prisms. The modulus of elasticity of the cylinder specimens was also determined. Cubic specimens' compressive strength was higher than (10 x 20) cm cylinder's compressive strength and lower than (5 x 10) cm cylinder's compressive strength. The dimensions of the cylinder specimens influenced its compressive strength, which was higher for the (5 x 10) cm specimens. However, it did not affect the static modulus of elasticity of the material. Correlations between the results were established and comparisons with different authors' results were made, improving both technological control and characterization of cement-lime mortars.
DOI: 10.6084/m9.figshare.6151532
title: Financialization at the international level: evidence from emerging market economies

description: Abstract The paper focuses on the manifestations of financialization in the international sphere, which it defines as the increasing magnitude of finance and its decoupling from earlier functions and logic as the speculative motive is strengthened. With financialization the motive of finance is no longer to finance trade and production but to accumulate wealth, which in emerging market economies (EMEs) takes place through innovative products and practices that have in common the focus on exchange rate returns, resulting in a strengthened speculative motive. The article reviews the financialization literature highlighting how the different closed-economy aspects impact the international sphere. It conducts empirical analyses based on the financial integration of a country and on the characteristics of its currencies’ FX markets to assess the presence of financialization and its characteristics among EMEs, indicating certain countries where this process is more intense.
DOI: 10.6084/m9.figshare.6151535.v1
title: Effect of Specimens' Shape and Size on the Determination of Compressive Strength and Deformability of Cement-lime Mortars

description: This work presents comparative analyses of the effect of specimens' shape and size on the compressive strength and modulus of elasticity of mortars. Mortar mixtures with compressive strength between 5 and 20 MPa were produced. Experimental tests determined the compressive strength of cylinder specimens of (5 x 10) cm and (10 x 20) cm, and also cubic specimens resulted of mortar's flexural strength tests, which use (4 x 4 x 16) cm prisms. The modulus of elasticity of the cylinder specimens was also determined. Cubic specimens' compressive strength was higher than (10 x 20) cm cylinder's compressive strength and lower than (5 x 10) cm cylinder's compressive strength. The dimensions of the cylinder specimens influenced its compressive strength, which was higher for the (5 x 10) cm specimens. However, it did not affect the static modulus of elasticity of the material. Correlations between the results were established and comparisons with different authors' results were made, improving both technological control and characterization of cement-lime mortars.
DOI: 10.6084/m9.figshare.6151532.v1
title: Financialization at the international level: evidence from emerging market economies

description: Abstract The paper focuses on the manifestations of financialization in the international sphere, which it defines as the increasing magnitude of finance and its decoupling from earlier functions and logic as the speculative motive is strengthened. With financialization the motive of finance is no longer to finance trade and production but to accumulate wealth, which in emerging market economies (EMEs) takes place through innovative products and practices that have in common the focus on exchange rate returns, resulting in a strengthened speculative motive. The article reviews the financialization literature highlighting how the different closed-economy aspects impact the international sphere. It conducts empirical analyses based on the financial integration of a country and on the characteristics of its currencies’ FX markets to assess the presence of financialization and its characteristics among EMEs, indicating certain countries where this process is more intense.
DOI: 10.6084/m9.figshare.6151529
title: Flexural Wave Band Gaps in Phononic Crystal Euler-Bernoulli Beams Using Wave Finite Element and Plane Wave Expansion Methods

description: We investigate theoretically and experimentally the forced response of flexural waves propagating in a 1D phononic crystal (PC) Euler-Bernoulli beam, composed by steel and polyethylene, and its band structure. The finite element, spectral element, wave finite element, wave spectral element, conventional and improved plane wave expansion methods are applied. We demonstrate that the vibration attenuation of the unit cell can be improved choosing correctly the polyethylene and steel quantities and we suggest the best percentages of these materials, considering different unit cell lengths. An experiment with a 1D PC beam is proposed and the numerical results can localize the band gap position and width close to the experimental results. A small Bragg-type band gap with low attenuation is observed between 405 Hz - 720 Hz. The 1D PC beam with unit cells of steel and polyethylene presents potential application for vibration control.
DOI: 10.6084/m9.figshare.6151529.v1
title: Flexural Wave Band Gaps in Phononic Crystal Euler-Bernoulli Beams Using Wave Finite Element and Plane Wave Expansion Methods

description: We investigate theoretically and experimentally the forced response of flexural waves propagating in a 1D phononic crystal (PC) Euler-Bernoulli beam, composed by steel and polyethylene, and its band structure. The finite element, spectral element, wave finite element, wave spectral element, conventional and improved plane wave expansion methods are applied. We demonstrate that the vibration attenuation of the unit cell can be improved choosing correctly the polyethylene and steel quantities and we suggest the best percentages of these materials, considering different unit cell lengths. An experiment with a 1D PC beam is proposed and the numerical results can localize the band gap position and width close to the experimental results. A small Bragg-type band gap with low attenuation is observed between 405 Hz - 720 Hz. The 1D PC beam with unit cells of steel and polyethylene presents potential application for vibration control.
DOI: 10.6084/m9.figshare.6151526
title: Optimal conditions for obtaining collagen from chicken feet and its characterization

description: Abstract The objective of this study was to extract collagen from chicken feet, determining optimal extraction conditions according to acetic acid concentration, pepsin content and time of enzymatic hydrolysis. A factorial design 23 was used, with three replications at the central point, totaling 11 experiments. The response variable studied was the collagen content of the isolate obtained. In addition to the optimization, the characterization of the isolates with higher and lower collagen content, in relation to the amino acid profile, electrophoretic profile, peptide hydrophobicity and functional properties, such as water solubility, water retention capacity and emulsifying activity, were carried out. The proposed model was statistically significant, with conditions of higher collagen content of 0.3 mol/L of acetic acid, 0.2% of pepsin and 12 hours of hydrolysis. The collagen isolate under these conditions showed higher iminoacids content, higher sum of peptide areas, higher solubility in water and water retention at 60 °C. The treatment with lower collagen content showed high emulsifying activity. The collagen isolate of the chicken feet presented characteristics makes it suitable for application in the food industry.
DOI: 10.6084/m9.figshare.6151523
title: The Back Stress Behavior Study Analyzed in Residual Stress of Welded Naval Plates in Different Lamination Directions and Different Thermal Contributions

description: The lamination process adds the anisotropy characteristic in the final product. This anisotropy influences the yield strength according to the direction in question, the difference between the value of the yield tension in one direction and the value of the yield tension in another direction referred to as the back stress. Naval plates were welded by the GMAW process in the longitudinal direction to the lamination and in the transverse direction, and with different thermal loads. The residual stresses were calculated by displacement coordinate points method (DCP) and the back stress was found by tensile tests in specimen subjected made with either the longitudinal lamination direction and transverse lamination direction. The material used was ASTM A131 naval steel grade AH-36. The welded plates with greater thermal load in the longitudinal direction presented smaller residual stress in this direction, in relation to the transverse lamination direction. In the welded plates with greater thermal load, in the transverse lamination direction, the displacements in different directions were close, showing that the back stress does not act reversing the displacement (flow). Finally, for the welded plates with lower thermal load, both welded in the longitudinal and transverse direction, the displacements were small. In addition, the back stress did not act reversing such displacements.
DOI: 10.6084/m9.figshare.6151526.v1
title: Optimal conditions for obtaining collagen from chicken feet and its characterization

description: Abstract The objective of this study was to extract collagen from chicken feet, determining optimal extraction conditions according to acetic acid concentration, pepsin content and time of enzymatic hydrolysis. A factorial design 23 was used, with three replications at the central point, totaling 11 experiments. The response variable studied was the collagen content of the isolate obtained. In addition to the optimization, the characterization of the isolates with higher and lower collagen content, in relation to the amino acid profile, electrophoretic profile, peptide hydrophobicity and functional properties, such as water solubility, water retention capacity and emulsifying activity, were carried out. The proposed model was statistically significant, with conditions of higher collagen content of 0.3 mol/L of acetic acid, 0.2% of pepsin and 12 hours of hydrolysis. The collagen isolate under these conditions showed higher iminoacids content, higher sum of peptide areas, higher solubility in water and water retention at 60 °C. The treatment with lower collagen content showed high emulsifying activity. The collagen isolate of the chicken feet presented characteristics makes it suitable for application in the food industry.
DOI: 10.6084/m9.figshare.6151523.v1
title: The Back Stress Behavior Study Analyzed in Residual Stress of Welded Naval Plates in Different Lamination Directions and Different Thermal Contributions

description: The lamination process adds the anisotropy characteristic in the final product. This anisotropy influences the yield strength according to the direction in question, the difference between the value of the yield tension in one direction and the value of the yield tension in another direction referred to as the back stress. Naval plates were welded by the GMAW process in the longitudinal direction to the lamination and in the transverse direction, and with different thermal loads. The residual stresses were calculated by displacement coordinate points method (DCP) and the back stress was found by tensile tests in specimen subjected made with either the longitudinal lamination direction and transverse lamination direction. The material used was ASTM A131 naval steel grade AH-36. The welded plates with greater thermal load in the longitudinal direction presented smaller residual stress in this direction, in relation to the transverse lamination direction. In the welded plates with greater thermal load, in the transverse lamination direction, the displacements in different directions were close, showing that the back stress does not act reversing the displacement (flow). Finally, for the welded plates with lower thermal load, both welded in the longitudinal and transverse direction, the displacements were small. In addition, the back stress did not act reversing such displacements.
DOI: 10.6084/m9.figshare.6151520
title: Effect of setting on the gelling properties of a protein concentrate from giant squid ( Dosidicus gigas) mantle

description: Abstract Different studies on obtaining protein concentrates or surimi from giant squid ( Dosidicus gigas) have reported that soft gels are obtained in comparison with other fish species. Therefore, the aim of this research was to investigate the effect of the setting (30 and 60 °C, for 0, 30, 60, and 90 min) on the gelling capacity as a possible alternative to improve the textural characteristics of the gels. Treatments at 60 °C (G4, G5, and G6) had a higher percentage of insoluble protein, while the electrophoretic profile showed the presence of high molecular weight (HMW) aggregates, as well as the decrease of myosin, paramyosin and actin bands as the incubation time was increased. Likewise, these systems presented a lower content of total sulfhydryl (TSH), which is attributed to the formation of disulfide bridges. The texture profile analysis (TPA) showed that the setting application affected the different parameters evaluated (strength, elasticity, and cohesiveness). Setting as pretreatment did not prove to be a good alternative for the gelling of proteins from giant squid mantle, since the control treatment (no setting) was that which exhibited better textural characteristics.
DOI: 10.6084/m9.figshare.6151520.v1
title: Effect of setting on the gelling properties of a protein concentrate from giant squid ( Dosidicus gigas) mantle

description: Abstract Different studies on obtaining protein concentrates or surimi from giant squid ( Dosidicus gigas) have reported that soft gels are obtained in comparison with other fish species. Therefore, the aim of this research was to investigate the effect of the setting (30 and 60 °C, for 0, 30, 60, and 90 min) on the gelling capacity as a possible alternative to improve the textural characteristics of the gels. Treatments at 60 °C (G4, G5, and G6) had a higher percentage of insoluble protein, while the electrophoretic profile showed the presence of high molecular weight (HMW) aggregates, as well as the decrease of myosin, paramyosin and actin bands as the incubation time was increased. Likewise, these systems presented a lower content of total sulfhydryl (TSH), which is attributed to the formation of disulfide bridges. The texture profile analysis (TPA) showed that the setting application affected the different parameters evaluated (strength, elasticity, and cohesiveness). Setting as pretreatment did not prove to be a good alternative for the gelling of proteins from giant squid mantle, since the control treatment (no setting) was that which exhibited better textural characteristics.
DOI: 10.6084/m9.figshare.6151517
title: Absence of TERT promoter mutations in colorectal precursor lesions and cancer

description: Abstract Hotspot mutations (c.-124bp G &gt; A and c.-146bp G &gt; A) in the promoter region of the TERT gene have been recently described in several types of solid tumors, including glioma, bladder, thyroid, liver and skin neoplasms. However, knowledge with respect to colorectal precursor lesions and cancer is scarce. In the present study we aimed to determine the frequency of hotspot TERT promoter mutations in 145 Brazilian patients, including 103 subjects with precursor lesions and 42 with colorectal carcinomas, and we associated the presence of such mutations with the patients clinical-pathological features. The mutation analysis was conclusive in 123 cases, and none of the precursor and colorectal carcinoma cases showed TERT promoter mutations. We conclude that TERT mutations are not a driving factor in colorectal carcinogenesis.
DOI: 10.6084/m9.figshare.6151517.v1
title: Absence of TERT promoter mutations in colorectal precursor lesions and cancer

description: Abstract Hotspot mutations (c.-124bp G &gt; A and c.-146bp G &gt; A) in the promoter region of the TERT gene have been recently described in several types of solid tumors, including glioma, bladder, thyroid, liver and skin neoplasms. However, knowledge with respect to colorectal precursor lesions and cancer is scarce. In the present study we aimed to determine the frequency of hotspot TERT promoter mutations in 145 Brazilian patients, including 103 subjects with precursor lesions and 42 with colorectal carcinomas, and we associated the presence of such mutations with the patients clinical-pathological features. The mutation analysis was conclusive in 123 cases, and none of the precursor and colorectal carcinoma cases showed TERT promoter mutations. We conclude that TERT mutations are not a driving factor in colorectal carcinogenesis.