cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.12171684.v1
title: Fugitive emissions of biogas in coverage liner of compacted soil in a landfill

description: ABSTRACT Fugitive biogas emissions can represent a significant part of the gas flow in landfills, make the methane (CH4) energy use unfeasible, and also pose risks to the environmental health of the surrounding communities. In this context, this work aimed to evaluate the fugitive emissions and the factors that interfere in the biogas flow in the final landfill liner. The study area consisted of a Waste Cell, with a mass of 62,359.44 t of MSW deposited at the Campina Grande Sanitary Landfill, Paraíba, Brazil. In this Cell, measurements of the fugitive emissions of biogas were carried out, using the static chamber methodology; analysis of the concentration of gases at the soil-waste interface, using Gas Concentration Measurement Devices (CMD); and mapping of the gas emissions in the Waste Cell, applying data interpolation techniques based on Kriging. Flows of CH4 and carbon dioxide (CO2) ranging from 0 to 0.09 and 24.62 to 331.31 g.m-2.day-1, respectively. The percentage of retention of CH4 and CO2 by the liner was high, above 95%, being influenced mainly by the high degree of average compaction obtained for the Waste Cell (91.84%) and by the efficiency of the gas drainage system. The mapping of biogas emissions in the Waste Cell proved to be an important tool in the identification of the areas with the greatest potential for biogas generation and flow through the cover liner.
DOI: 10.6084/m9.figshare.12171678
title: In-service Secondary Teachers' Teaching Approaches and Views Towards Integrating Ethnomathematics Approaches into Geometry Teaching

description: Abstract Geometry teaching and learning ought to mirror and embrace the social diversity found in the geometry learning environment as well as the increasingly connected world. For that reason, ethnomathematics approaches that relate geometry teaching and learning to the learners' cultural experiences and background should be used when teaching geometry. The aim of this study was to find out the teachers' teaching approaches in geometry as well as their views towards the incorporation of ethnomathematics into the geometry teaching. A convergent mixed methods design was used in this study. Focus group discussions and questionnaires were used as data gathering instruments. The sample comprised of 40 in-service mathematics teachers. Findings show that both teacher-centered and learner-centered approaches were used in geometry teaching and learning. The study also revealed that teachers had the opinion that ethnomathematics approaches should be integrated into geometry teaching. The study recommends that teachers should be trained to use ethnomathematics approaches when teaching geometry.
DOI: 10.6084/m9.figshare.12171681.v1
title: Prevalence and trends of mental disorders requiring inpatient care in the city of Porto Alegre: a citywide study including all inpatient admissions due to mental disorders in the public system from 2013-2017

description: Abstract Objectives To investigate the 5-year prevalence of patients admitted to public inpatient care units due to a mental disorder, stratifying them by age group and diagnosis, and to assess trends of admissions over this time period in Porto Alegre. Methods All admissions to the public mental health care system regulated by the city-owned electronic system Administração Geral dos Hospitais (AGHOS) were included in the analysis. The total population size was obtained by estimations of Fundação de Economia e Estatística (FEE). General information about 5-year prevalence of inpatient admissions, time-series trends e prevalence by age groups and diagnosis were presented. Results There were 32,608 admissions over the 5-year period analyzed. The overall prevalence of patients was 1.62% among the total population, 0.01% among children, 1.12% among adolescents, 2.28% among adults and 0.93% among the elderly. The most common diagnosis was drug-related, followed by mood, alcohol-related and psychotic disorders. There was a linear trend showing an increase in the number of admissions from 2013 to the midst of 2014, which dropped in 2015. Conclusions Admissions due to mental disorders are relatively common, mainly among adults and related to drug use and mood disorders. Time trends varied slightly over the 5 years. Prevalence rates in real-world settings might be useful for policymakers interested in planning the public mental health system in large Brazilian cities.
DOI: 10.6084/m9.figshare.12171666
title: Statistical Graphs in Costa Rica Textbooks for Primary Education

description: Abstract The aim of this work was to analyze the statistical graphs included in the two most frequently series of textbooks used in Costa Rica basic education. We analyze the type of graph, its semiotic complexity, and the data context, as well as the type of task, reading level required to complete the task and purpose of the graph within the task. We observed the predominance of bar graphs, third level of semiotic complexity (representing a distribution), second reading level (reading between the data), work and school context, reading and computation tasks and analysis purpose. We describe the differences in the various grades and between both editorials, as well as differences and coincidences with results of other textbook studies carried out in Spain and Chile.
DOI: 10.6084/m9.figshare.12171678.v1
title: In-service Secondary Teachers' Teaching Approaches and Views Towards Integrating Ethnomathematics Approaches into Geometry Teaching

description: Abstract Geometry teaching and learning ought to mirror and embrace the social diversity found in the geometry learning environment as well as the increasingly connected world. For that reason, ethnomathematics approaches that relate geometry teaching and learning to the learners' cultural experiences and background should be used when teaching geometry. The aim of this study was to find out the teachers' teaching approaches in geometry as well as their views towards the incorporation of ethnomathematics into the geometry teaching. A convergent mixed methods design was used in this study. Focus group discussions and questionnaires were used as data gathering instruments. The sample comprised of 40 in-service mathematics teachers. Findings show that both teacher-centered and learner-centered approaches were used in geometry teaching and learning. The study also revealed that teachers had the opinion that ethnomathematics approaches should be integrated into geometry teaching. The study recommends that teachers should be trained to use ethnomathematics approaches when teaching geometry.
DOI: 10.6084/m9.figshare.12171690.v1
title: Didactical analysis of a lesson on proportionality of a primary school textbook using tools of the onto-semiotic approach

description: Abstract The textbook is a widely used resource in the practice of teaching and, consequently, is a subject of educational research considered from various theoretical perspectives. In this paper, we apply the theoretical tools from the onto-semiotic approach to mathematical knowledge and instruction to perform the didactical analysis of a lesson on proportionality for elementary school (sixth grade; 11-12 years old). The selected lesson allows us to reflect on the instructional process planned by the textbook authors as a means to achieve the students’ learning. The following questions guide the textbook analysis: 1) What is the degree of didactical suitability of the planned instructional process? 2) How should we manage the use of the textbook to increase the process suitability? The method of analysis implemented allows us to obtain the didactic-mathematical knowledge that may help the teacher in making decisions about the textbook possibilities and limitations, when assuming the sociocultural postulates for mathematical learning.
DOI: 10.6084/m9.figshare.12171660
title: The use of performance indicators in the evaluation of the operational quality of the Rio de Janeiro state sanitary landfill in the 2013-2015 triennium

description: ABSTRACT Shutting down dumpsites, implanting and operating landfills are important steps to consolidate an efficient and sustainable urban solid waste management system. In the state of Rio de Janeiro, since 2007, there have been significant advances in this process. However, it is fundamental to transcend the terminology that distinguishes the final disposal sites and to evaluate the real quality of the provision of this public service. There is no doubt that shutting down dumpsites should be a priority for states and municipalities, however, this thought should not distance oneself from the constant evaluation of the environmental performance of these activities and, consequently, the operational quality of the landfills. Based on this principle, the state of Rio de Janeiro, through the State Environmental Institute (INEA), developed in 2013 a methodology for obtaining the Final Destination of Waste Quality Index. The main objective of this article is to evaluate the results of the application of Rio de Janeiro’s Final Destination of Waste Quality Index, in the years of 2013, 2014, and 2015. This analysis made it possible to criticize the strategies proposed by the public policies for waste management in the state, as well as their effectiveness. It was verified that the landfills of Seropédica, Campos, and São Gonçalo presented the best performances and were considered adequate. Together, these landfills received more than ten million tons in the period, about 58% of the urban solid waste collected in the state. The Miguel Pereira, Barra do Piraí, and Piraí landfills presented the worst performance, considered inadequate, receiving about 47,000 tons in the period, less than 1% of the MSW collected in the state.
DOI: 10.6084/m9.figshare.12171666.v1
title: Statistical Graphs in Costa Rica Textbooks for Primary Education

description: Abstract The aim of this work was to analyze the statistical graphs included in the two most frequently series of textbooks used in Costa Rica basic education. We analyze the type of graph, its semiotic complexity, and the data context, as well as the type of task, reading level required to complete the task and purpose of the graph within the task. We observed the predominance of bar graphs, third level of semiotic complexity (representing a distribution), second reading level (reading between the data), work and school context, reading and computation tasks and analysis purpose. We describe the differences in the various grades and between both editorials, as well as differences and coincidences with results of other textbook studies carried out in Spain and Chile.
DOI: 10.6084/m9.figshare.12171660.v1
title: The use of performance indicators in the evaluation of the operational quality of the Rio de Janeiro state sanitary landfill in the 2013-2015 triennium

description: ABSTRACT Shutting down dumpsites, implanting and operating landfills are important steps to consolidate an efficient and sustainable urban solid waste management system. In the state of Rio de Janeiro, since 2007, there have been significant advances in this process. However, it is fundamental to transcend the terminology that distinguishes the final disposal sites and to evaluate the real quality of the provision of this public service. There is no doubt that shutting down dumpsites should be a priority for states and municipalities, however, this thought should not distance oneself from the constant evaluation of the environmental performance of these activities and, consequently, the operational quality of the landfills. Based on this principle, the state of Rio de Janeiro, through the State Environmental Institute (INEA), developed in 2013 a methodology for obtaining the Final Destination of Waste Quality Index. The main objective of this article is to evaluate the results of the application of Rio de Janeiro’s Final Destination of Waste Quality Index, in the years of 2013, 2014, and 2015. This analysis made it possible to criticize the strategies proposed by the public policies for waste management in the state, as well as their effectiveness. It was verified that the landfills of Seropédica, Campos, and São Gonçalo presented the best performances and were considered adequate. Together, these landfills received more than ten million tons in the period, about 58% of the urban solid waste collected in the state. The Miguel Pereira, Barra do Piraí, and Piraí landfills presented the worst performance, considered inadequate, receiving about 47,000 tons in the period, less than 1% of the MSW collected in the state.
DOI: 10.6084/m9.figshare.12171645
title: Mathematics Conceptions by Teachers from an Ethnomathematical Perspective

description: Abstract The ethnomathematical perspective implies substantial epistemological changes in mathematics conception with respect to the positivist tradition. This research focuses on a workshop for pre-service teachers, designed and developed under the ethnomathematical perspective, and which promotes reflection on the nature of mathematical knowledge. To that end, we analyzed the teachers’ answers about the nature of the mathematics described after the participation in this workshop. First, we identified some characteristic approaches of mathematics from the ethnomathematical perspective - the practical, social, and cultural approaches - and then used them to analyze the participants’ observations, which are considered as evidence of their conceptions about the nature of mathematical knowledge. Later, we grouped participants in profiles defined in relation to the incorporation of mathematics approaches according to Ethnomathematics. In conclusion, the workshop is shown as an environment conducive to reflection.
DOI: 10.6084/m9.figshare.12171651
title: Use of geoprocessing techniques in the optimization of the pipeline alignment of water supply systems with the use of a high definition database

description: ABSTRACT This paper discusses a multi-criteria GIS-based optimization model, which aims to determine the locations with the highest potential for the location of the water mains through the use of cost variables, as well as the best path for this tracing. As a result, it was possible to simulate minimum cost routes for the pipeline layout, considering criteria related to: the slope and altitude of the area, the distances of rivers and flooded areas and the proximity of highways. The analysis takes into account the importance (weight) of each criterion in the model. To minimize subjectivity in choosing the values of these weights, expert opinion was sought regarding the criteria analyzed. The HWA (Hierarchical Weight Analysis) method was used to weigh the criteria. To apply the methodology, the study area used an excerpt from the Pajeú pipeline in the state of Pernambuco and a high definition database from the Pernambuco Three-dimensional Program, as well as the SRTM/TOPODATA database. The results obtained through GIS allowed us to identify the areas considered to be the most suitable for the location of the pipeline and to determine an optimized route for this route. In practice, it meant determining a route for the pipeline installation, which suggests that the use of GIS and optimization techniques can help decision making regarding the design of water supply systems.
DOI: 10.6084/m9.figshare.12171663
title: Exercise training session-induced metabolic acidosis in barrel racing horses

description: ABSTRACT: In horses, acid-base balance disorders are common after intense exercise, with metabolic acidosis being the most common after high intensity and short duration exercise. Understanding the processes that cause them is fundamental for procedures, which aimed to improve the physical fitness of horses for athletic purposes, with fewer changes in homeostasis. The present study assessed the effect of barrel racing on acid base balance in Quarter Horse, at the following times: T0 - immediately before training; T1 - immediately after the end of the second course; T2 - one hour after the end of the second course. In T1, there was decrease (P&lt;0.05) in the pH, HCO3 -, pCO2, cBase, tCO2 and strong ion difference concentrations, while the plasma lactate and anion gap increased (P&lt;0.05). It was concluded that barrel racing training caused transient metabolic acidosis in the horses, and hyperlactatemia was still present after an hour of rest.
DOI: 10.6084/m9.figshare.12171645.v1
title: Mathematics Conceptions by Teachers from an Ethnomathematical Perspective

description: Abstract The ethnomathematical perspective implies substantial epistemological changes in mathematics conception with respect to the positivist tradition. This research focuses on a workshop for pre-service teachers, designed and developed under the ethnomathematical perspective, and which promotes reflection on the nature of mathematical knowledge. To that end, we analyzed the teachers’ answers about the nature of the mathematics described after the participation in this workshop. First, we identified some characteristic approaches of mathematics from the ethnomathematical perspective - the practical, social, and cultural approaches - and then used them to analyze the participants’ observations, which are considered as evidence of their conceptions about the nature of mathematical knowledge. Later, we grouped participants in profiles defined in relation to the incorporation of mathematics approaches according to Ethnomathematics. In conclusion, the workshop is shown as an environment conducive to reflection.
DOI: 10.6084/m9.figshare.12171651.v1
title: Use of geoprocessing techniques in the optimization of the pipeline alignment of water supply systems with the use of a high definition database

description: ABSTRACT This paper discusses a multi-criteria GIS-based optimization model, which aims to determine the locations with the highest potential for the location of the water mains through the use of cost variables, as well as the best path for this tracing. As a result, it was possible to simulate minimum cost routes for the pipeline layout, considering criteria related to: the slope and altitude of the area, the distances of rivers and flooded areas and the proximity of highways. The analysis takes into account the importance (weight) of each criterion in the model. To minimize subjectivity in choosing the values of these weights, expert opinion was sought regarding the criteria analyzed. The HWA (Hierarchical Weight Analysis) method was used to weigh the criteria. To apply the methodology, the study area used an excerpt from the Pajeú pipeline in the state of Pernambuco and a high definition database from the Pernambuco Three-dimensional Program, as well as the SRTM/TOPODATA database. The results obtained through GIS allowed us to identify the areas considered to be the most suitable for the location of the pipeline and to determine an optimized route for this route. In practice, it meant determining a route for the pipeline installation, which suggests that the use of GIS and optimization techniques can help decision making regarding the design of water supply systems.
DOI: 10.6084/m9.figshare.12171642
title: Sulfentrazone: Environmental Dynamics and Selectivity

description: ABSTRACT: Sulfentrazone is a pre-emergence herbicide that inhibits protoporphyrinogen oxidase (Protox). Its use has emphasis on areas like soybeans planted in lowlands, soybean, and sugarcane in areas of cerrado, and also in the implementation of eucalyptus afforestation. The use of sulfentrazone into resistant weed management programs mainly to glyphosate and acetolactate synthase (ALS) inhibitors has been successful. However, the information on the environmental behavior of this herbicide is limited, even more restricted when it refers to the lowland areas where problems are frequently observed regarding the selectivity of sulfentrazone, due to the soil and climatic peculiarities of this environment. In this context, the present review aims to describe the main characteristics of sulfentrazone to its environmental dynamics.
DOI: 10.6084/m9.figshare.12171663.v1
title: Exercise training session-induced metabolic acidosis in barrel racing horses

description: ABSTRACT: In horses, acid-base balance disorders are common after intense exercise, with metabolic acidosis being the most common after high intensity and short duration exercise. Understanding the processes that cause them is fundamental for procedures, which aimed to improve the physical fitness of horses for athletic purposes, with fewer changes in homeostasis. The present study assessed the effect of barrel racing on acid base balance in Quarter Horse, at the following times: T0 - immediately before training; T1 - immediately after the end of the second course; T2 - one hour after the end of the second course. In T1, there was decrease (P&lt;0.05) in the pH, HCO3 -, pCO2, cBase, tCO2 and strong ion difference concentrations, while the plasma lactate and anion gap increased (P&lt;0.05). It was concluded that barrel racing training caused transient metabolic acidosis in the horses, and hyperlactatemia was still present after an hour of rest.
DOI: 10.6084/m9.figshare.12171639
title: Efficacy, patient-doctor relationship, costs and benefits of utilizing telepsychiatry for the management of post-traumatic stress disorder (PTSD): a systematic review

description: Abstract Introduction Post-traumatic stress disorder (PTSD) is one of the most common psychiatric disorders found among victims of disaster, kidnapping, accidents, sexual assaults and war in Indonesia. However, lacking and unequal distribution of psychiatric medical personnel remains a barrier to its management. This review aims to introduce and evaluate the potential contribution of telepsychiatry to the management of PTSD based on published literature. Methods Original studies were obtained from PubMed, Science Direct, ProQuest, High Wire, and Elsevier Clinical Key databases. Results A total of 125 articles were found, of which 15 articles (12 randomized controlled trials, 2 open trials and 1 pilot study) fulfilled the inclusion criteria. A total of 991 subjects were found with a follow-up period ranging between 5 weeks and 18 months. Telepsychiatry is an innovative use of technology to aid the delivery of PTSD treatments in areas difficult to reach. The quality of care given by telepsychiatry both through video conferencing as well as web- and application-based is comparable to that of face-to-face therapy. Patient satisfaction, quality of doctor-patient relationship also remains high, with lower costs and shorter therapeutic time when compared to face-to-face therapy. Conclusion Various studies have shown that telepsychiatry is an effective solution for the management of PTSD. Studies have also reported that the quality of treatment through telepsychiatry is as effective as face-to-face therapy, with greater efficiency. Countries, especially those with a low patient-to-mental health professional ratio, should be encouraged to develop telepsychiatry systems to manage PTSD.