cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11265806
title: The pattern of alcohol consumption among the users of the Family Health Units in the municipality of Recife (PE)

description: ABSTRACT International and national surveys point to the significant increase of women with alcohol abuse, and this consumption generates social, psychological and biological damages in their lives. The objective of this study was to evaluate the patterns of alcohol consumption among women enrolled in the Family Health Units in Recife (PE). It is an exploratory descriptive study with a quantitative approach, which comes from an original survey through a defined sample of 864 women aged 18 years or older. It used a sociodemographic questionnaire and the Test for Identification of Problems Related to the use of Alcohol. The risk standards found among participants were 57.9% do not drink; 23.7% drink at low risk; 11.9% drink at medium risk; and 6.3% drink at high risk; predominantly young women, in the age group 18 to 39; without work and elementary school. It was verified that 54.93% made abusive use of alcoholic beverages in a typical day and 22.93% suffered an alcoholic blackout. These results evidence the importance of elaborating preventive and harm reduction strategies in relation to drinking, for women’s health care.
DOI: 10.6084/m9.figshare.7506437.v1
title: Surveillance and monitoring of fluorides in public drinking water: a systematic review

description: Fluoride can harm or protect human dentition according to its concentration in the water. This paper summarizes major methodological features and main findings described in studies of fluoride concentration in public supply water that were published in specialized journals between 2008 and 2012, highlighting their implications for public health surveillance. A systematic review was conducted comprising scientific articles in the databases Embase, Lilacs and PubMed. Thirty-six studies were included: 28 from the Americas, five from Asia, two from Africa and one from Europe. The variability of the studies related to design and methodological procedures was high. Although the studies provided information on the space-temporal distribution of the samples, few publications described the population covered by the investigated supply source. Almost half of the studies were cross-sectional and no dispersion or variation measure was associated to the mean value. The electrometric method and dichotomous classification of the samples were predominately used for evaluating the outcomes. Less than half of the studies were articulated to surveillance as a State action and a lesser number raised hypotheses regarding possible factors related to the findings. There is a major space to be narrowed between the results of these initiatives and the use of that information by public health authorities and to improve methodological procedures in future studies. The interaction between researchers and water quality control organizations should be increased.
DOI: 10.6084/m9.figshare.11265806.v1
title: The pattern of alcohol consumption among the users of the Family Health Units in the municipality of Recife (PE)

description: ABSTRACT International and national surveys point to the significant increase of women with alcohol abuse, and this consumption generates social, psychological and biological damages in their lives. The objective of this study was to evaluate the patterns of alcohol consumption among women enrolled in the Family Health Units in Recife (PE). It is an exploratory descriptive study with a quantitative approach, which comes from an original survey through a defined sample of 864 women aged 18 years or older. It used a sociodemographic questionnaire and the Test for Identification of Problems Related to the use of Alcohol. The risk standards found among participants were 57.9% do not drink; 23.7% drink at low risk; 11.9% drink at medium risk; and 6.3% drink at high risk; predominantly young women, in the age group 18 to 39; without work and elementary school. It was verified that 54.93% made abusive use of alcoholic beverages in a typical day and 22.93% suffered an alcoholic blackout. These results evidence the importance of elaborating preventive and harm reduction strategies in relation to drinking, for women’s health care.
DOI: 10.6084/m9.figshare.7508039
title: Frequency and risk in nonstationary pluviometric records in the drainage basin of Tarauacá river, Acre

description: ABSTRACT Nonstationary trends in hydrological time series have aroused the interest of experts in recent decades. Consequently, conventional methods used for frequency analysis and quantification of risk associated with the occurrence of extreme climate events require adjustment. This study aims to perform the frequency analysis and the quantification of the risk of precipitation for a ten-day period in Tarauacá - Acre, Brazil. The results have shown that nonstationary Gumbel distribution with time-dependent location and scale best fits the observed data, thus allowing the most reliable measurements for risk of rare events, and determining reference quantiles associated with planning horizons or design of hydraulic structures.
DOI: 10.6084/m9.figshare.7508039.v1
title: Frequency and risk in nonstationary pluviometric records in the drainage basin of Tarauacá river, Acre

description: ABSTRACT Nonstationary trends in hydrological time series have aroused the interest of experts in recent decades. Consequently, conventional methods used for frequency analysis and quantification of risk associated with the occurrence of extreme climate events require adjustment. This study aims to perform the frequency analysis and the quantification of the risk of precipitation for a ten-day period in Tarauacá - Acre, Brazil. The results have shown that nonstationary Gumbel distribution with time-dependent location and scale best fits the observed data, thus allowing the most reliable measurements for risk of rare events, and determining reference quantiles associated with planning horizons or design of hydraulic structures.
DOI: 10.6084/m9.figshare.7517318
title: Regularization of hydroelectric reservoir levels through hydro and solar energy complementarity

description: ABSTRACT Hydrological changes during prolonged droughts, as verified in the last two decades in Brazil, may reduce the level of hydroelectric reservoirs to the point that energy rationings become necessary. Such fluctuations, have been mainly complemented by thermo power, which is much more expensive and polluting. This work addresses the possibility of complementing the hydro system with solar energy. Daily-accumulated solar radiation from São Paulo, covering the period from 1961 to 2012, is used to evaluate the seasonal and interannual variability of solar power generation. The computed solar energy is applied in a hybrid solar-hydro model, where the turbine outflow is reduced accordingly to the solar power production, so that storage is improved in the long-term. The study region is Itumbiara reservoir in Brazil’s Paraná hydrographic basin. Results suggest that this hybrid system should improve the reservoir ability to confront interannual climate variability.
DOI: 10.6084/m9.figshare.14269704
title: Psycholinguistics of Bilingualism: Implications in Formal Processes of Language Acquisition

description: Abstract In this article we discuss the interrelationships between contextual and individual variables in the acquisition and use of L2, based on researches developed by our team. We assume that in the late acquisition of L2 there is variability in the proficiency of the learners, and that it is necessary to (re)know the effects of the individual variables in the teaching-learning processes. The experiments, which were created according to the Psycholinguistics of bilingualism and carried out in formal contexts of acquisition, evaluated associations between attention and working memory systems and the performance of bilinguals in their L2. The results, although incipient, indicate that effects of pedagogical approaches can be affected by individual differences. In addition, they reveal the need of more experiments that focus these variables on L2 teaching-learning processes.
DOI: 10.6084/m9.figshare.7509248
title: To Sir with Love: the relations between teacher qualification and student performance in Accounting

description: ABSTRACT Accounting scholars who discuss the teaching of Accounting highlight two fundamental types of qualification for teaching staff in Accountancy programs: academic qualification (AQ), which refers to the teacher’s preparation for research; and professional qualification (PQ), defined by the teacher’s connection with current professional practices in the job market. Educational literature on higher education teaching, in turn, appoints a third type: pedagogical qualification (PeQ), which relates to the systemized preparation for teaching practice in the university context. Considering undergraduate Accountancy students’ low performance levels in the National Exam for the Assessment of Student Performance (Exame Nacional do Desempenho dos Estudantes/Enade), this research aimed to investigate the relations between student performance and teacher qualification. To identify variables related to teaching staff qualification, a questionnaire was developed, validated and applied in 218 higher education institutions (HEIs) that offer undergraduate Accountancy programs. These variables were compared with graduates’ performance at the same institutions, verified on ENADE’s basis, using linear regression and correlation analysis. The results partially confirm the established hypotheses: only academic qualification shows a significant regression coefficient at 5% (p-value = 0.000) and a significant positive correlation at 1%. Professional and pedagogical qualification showed no significant correlations. The AQ rate at public HEIs is also significantly higher than at private HEIs.
DOI: 10.6084/m9.figshare.7509248.v1
title: To Sir with Love: the relations between teacher qualification and student performance in Accounting

description: ABSTRACT Accounting scholars who discuss the teaching of Accounting highlight two fundamental types of qualification for teaching staff in Accountancy programs: academic qualification (AQ), which refers to the teacher’s preparation for research; and professional qualification (PQ), defined by the teacher’s connection with current professional practices in the job market. Educational literature on higher education teaching, in turn, appoints a third type: pedagogical qualification (PeQ), which relates to the systemized preparation for teaching practice in the university context. Considering undergraduate Accountancy students’ low performance levels in the National Exam for the Assessment of Student Performance (Exame Nacional do Desempenho dos Estudantes/Enade), this research aimed to investigate the relations between student performance and teacher qualification. To identify variables related to teaching staff qualification, a questionnaire was developed, validated and applied in 218 higher education institutions (HEIs) that offer undergraduate Accountancy programs. These variables were compared with graduates’ performance at the same institutions, verified on ENADE’s basis, using linear regression and correlation analysis. The results partially confirm the established hypotheses: only academic qualification shows a significant regression coefficient at 5% (p-value = 0.000) and a significant positive correlation at 1%. Professional and pedagogical qualification showed no significant correlations. The AQ rate at public HEIs is also significantly higher than at private HEIs.
DOI: 10.6084/m9.figshare.7517318.v1
title: Regularization of hydroelectric reservoir levels through hydro and solar energy complementarity

description: ABSTRACT Hydrological changes during prolonged droughts, as verified in the last two decades in Brazil, may reduce the level of hydroelectric reservoirs to the point that energy rationings become necessary. Such fluctuations, have been mainly complemented by thermo power, which is much more expensive and polluting. This work addresses the possibility of complementing the hydro system with solar energy. Daily-accumulated solar radiation from São Paulo, covering the period from 1961 to 2012, is used to evaluate the seasonal and interannual variability of solar power generation. The computed solar energy is applied in a hybrid solar-hydro model, where the turbine outflow is reduced accordingly to the solar power production, so that storage is improved in the long-term. The study region is Itumbiara reservoir in Brazil’s Paraná hydrographic basin. Results suggest that this hybrid system should improve the reservoir ability to confront interannual climate variability.
DOI: 10.6084/m9.figshare.14269704.v1
title: Psycholinguistics of Bilingualism: Implications in Formal Processes of Language Acquisition

description: Abstract In this article we discuss the interrelationships between contextual and individual variables in the acquisition and use of L2, based on researches developed by our team. We assume that in the late acquisition of L2 there is variability in the proficiency of the learners, and that it is necessary to (re)know the effects of the individual variables in the teaching-learning processes. The experiments, which were created according to the Psycholinguistics of bilingualism and carried out in formal contexts of acquisition, evaluated associations between attention and working memory systems and the performance of bilinguals in their L2. The results, although incipient, indicate that effects of pedagogical approaches can be affected by individual differences. In addition, they reveal the need of more experiments that focus these variables on L2 teaching-learning processes.
DOI: 10.6084/m9.figshare.7512845
title: Nonlinear Characteristic of Spherical Joints with Clearance

description: ABSTRACT: Joints in deployable structures can degrade the stiffness and the stability of spacecraft. In this study, the nonlinear stiffness of spherical joints is investigated. The traditional contact model of spherical joints based on non-conforming contact assumption is presented. A new contact model for spherical joints based on the Winkler model and geometric constraints is established to calculate the stiffness of spherical joints with small clearances. The finite element model (FEM) of spherical joints is built to evaluate the accuracy of the theoretical model. The effects of the clearance and the contact force of spherical joints on the deformation of joints are investigated. When compared with FEM results, the error of the new spherical model is smaller than that of the traditional contact model when the clearance of spherical joint is not excessively large. The new contact model for spherical joint is more accurate than the traditional contact model when the clearance of spherical joint is large.
DOI: 10.6084/m9.figshare.6448388
title: Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region

description: ABSTRACT The studies on metals in Madeira River’s principal flow show high variability of Co, Cr, Cu, Fe, Ni, Pb and Zn concentrations. However, the transfer of these metals from the main river channel, whose physical and chemical characteristics differ from those of lakes, has not been fully characterized. The objective of this study was to discuss how the transfer of Madeira River’s metals changes the spatial dynamics of these metals in sediments of the Puruzinho Lake (AM). The principal component analysis pointed to differences in the order of the data, creating two distribution zones of metals. The average concentrations of Co, Cu, Cr, Mn and Fe are higher in the area under the influence of the suspended solids coming from the Madeira River. The zoning of metals in lakes is structured by the forces acting across the river’s course at the same time as plains flood and generates ecotones.
DOI: 10.6084/m9.figshare.7512845.v1
title: Nonlinear Characteristic of Spherical Joints with Clearance

description: ABSTRACT: Joints in deployable structures can degrade the stiffness and the stability of spacecraft. In this study, the nonlinear stiffness of spherical joints is investigated. The traditional contact model of spherical joints based on non-conforming contact assumption is presented. A new contact model for spherical joints based on the Winkler model and geometric constraints is established to calculate the stiffness of spherical joints with small clearances. The finite element model (FEM) of spherical joints is built to evaluate the accuracy of the theoretical model. The effects of the clearance and the contact force of spherical joints on the deformation of joints are investigated. When compared with FEM results, the error of the new spherical model is smaller than that of the traditional contact model when the clearance of spherical joint is not excessively large. The new contact model for spherical joint is more accurate than the traditional contact model when the clearance of spherical joint is large.
DOI: 10.6084/m9.figshare.6388670
title: Experimental and numerical investigation of flow patterns in shallow rectangular reservoirs with symmetrically positioned inlet and outlet channels

description: ABSTRACT Shallow flows correspond to turbulent flows whose horizontal dimensions are considerably larger than the vertical one. In Hydraulic Engineering, they refer, e.g., to stormwater basins, stabilization ponds for wastewater treatment and aquaculture tanks. Since they involve low flow velocities, a continuous settling process often affects such shallow reservoirs. Therefore, it is important to expand the knowledge about the influence of its geometry on the hydrodynamic behavior and the sedimentation tendency. This paper aims to analyze flow patterns in a rectangular reservoir with symmetrically positioned upstream and downstream channels, taking into account three different flow rates under steady flow regime (0.50, 1.25 and 3.40 L/s). Experimental tests were performed in a laboratory prototype, consisted of a 3.0 m long and 2.0 m wide reservoir, with a maximum depth of 0.30 m. Also, it was applied the WOLF 2D software for numerical modeling of all variants. Experimentally, a symmetrical hydrodynamic behavior was observed only for the lowest flow rate, while the flow pattern was asymmetrical for the other cases. On the other hand, the numerical model indicated hydrodynamic symmetry for all scenarios.
DOI: 10.6084/m9.figshare.6448388.v1
title: Dynamics of metals in lacustrine sediments: case study of the Madeira River, Amazon region

description: ABSTRACT The studies on metals in Madeira River’s principal flow show high variability of Co, Cr, Cu, Fe, Ni, Pb and Zn concentrations. However, the transfer of these metals from the main river channel, whose physical and chemical characteristics differ from those of lakes, has not been fully characterized. The objective of this study was to discuss how the transfer of Madeira River’s metals changes the spatial dynamics of these metals in sediments of the Puruzinho Lake (AM). The principal component analysis pointed to differences in the order of the data, creating two distribution zones of metals. The average concentrations of Co, Cu, Cr, Mn and Fe are higher in the area under the influence of the suspended solids coming from the Madeira River. The zoning of metals in lakes is structured by the forces acting across the river’s course at the same time as plains flood and generates ecotones.
DOI: 10.6084/m9.figshare.9986111
title: Efficacy and safety of sodium-glucose cotransporter-2 inhibitors in type 2 diabetes mellitus with inadequate glycemic control on metformin: a meta-analysis

description: ABSTRACT Objectives To provide a meta-analysis of the clinical efficacy and safety of sodium glucose co-transporter 2 inhibitors (SGLT2-i), as a combination treatment with metformin in type 2 diabetes mellitus (T2DM) patients with inadequate glycemic control with metformin alone. Materials and methods We have searched randomized controlled trials (RCTs) in the database: MEDLINE, Embase and Cochrane Collaborative database. We used mean differences (MD) to assess the efficacy of glycemic and other clinical parameters, and risk ratios (RR) to evaluate the adverse events for safety endpoints. The heterogeneity was evaluated by I2. Results Finally 9 studies were included. SGLT2-i plus metformin had higher reduction level in HbA1C [MD = -0.50, 95% CI (-0.62, -0.38), p &lt; 0.00001], FPG [MD = -1.12, 95%CI (-1.38, -0.87), p &lt; 0.00001], body weight [MD = -1.72, 95% CI (-2.05, -1.39), p &lt; 0.00001], SBP [MD = -4.44, 95% CI (-5.45, -3.43), p &lt; 0.00001] and DBP [MD = -1.74, 95% CI (-2.40, -1.07), p &lt; 0.00001] compared with metformin monotherapy. However, SGLT2-i plus metformin group had higher risk of genital infection [RR = 3.98, 95% CI (2.38, 6.67), p &lt; 0.00001]. No significant difference was found in the risk of hypoglycemia, urinary tract infection or volume related adverse events. Conclusions Although the risk of genital infection may increase, SGLT2-i plus metformin may provide an attractive treatment option to those T2DM patients who are unable to achieve glycemic control with metformin alone, based on its effects on glycemic control, reducing body weight and lowering blood pressure.
DOI: 10.6084/m9.figshare.9986111.v1
title: Efficacy and safety of sodium-glucose cotransporter-2 inhibitors in type 2 diabetes mellitus with inadequate glycemic control on metformin: a meta-analysis

description: ABSTRACT Objectives To provide a meta-analysis of the clinical efficacy and safety of sodium glucose co-transporter 2 inhibitors (SGLT2-i), as a combination treatment with metformin in type 2 diabetes mellitus (T2DM) patients with inadequate glycemic control with metformin alone. Materials and methods We have searched randomized controlled trials (RCTs) in the database: MEDLINE, Embase and Cochrane Collaborative database. We used mean differences (MD) to assess the efficacy of glycemic and other clinical parameters, and risk ratios (RR) to evaluate the adverse events for safety endpoints. The heterogeneity was evaluated by I2. Results Finally 9 studies were included. SGLT2-i plus metformin had higher reduction level in HbA1C [MD = -0.50, 95% CI (-0.62, -0.38), p &lt; 0.00001], FPG [MD = -1.12, 95%CI (-1.38, -0.87), p &lt; 0.00001], body weight [MD = -1.72, 95% CI (-2.05, -1.39), p &lt; 0.00001], SBP [MD = -4.44, 95% CI (-5.45, -3.43), p &lt; 0.00001] and DBP [MD = -1.74, 95% CI (-2.40, -1.07), p &lt; 0.00001] compared with metformin monotherapy. However, SGLT2-i plus metformin group had higher risk of genital infection [RR = 3.98, 95% CI (2.38, 6.67), p &lt; 0.00001]. No significant difference was found in the risk of hypoglycemia, urinary tract infection or volume related adverse events. Conclusions Although the risk of genital infection may increase, SGLT2-i plus metformin may provide an attractive treatment option to those T2DM patients who are unable to achieve glycemic control with metformin alone, based on its effects on glycemic control, reducing body weight and lowering blood pressure.