cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7941863.v1
title: PROPERTIES OF MICROALGAE OIL FROM THE SPECIES Chlorella protothecoides AND ITS ETHYLIC BIODIESEL

description: ABSTRACT Microalgae oil of the species Chlorella protothecoides was obtained via a donation of the Soley Biotechnology Institute (SOLEYBIO) and characterized according to the fatty acid profile. Ethylic biodiesel was prepared using methods adapted by the research group. Analysis of acidity, water content, and density and viscosity temperature dependence (293.15 K to 368.15 K) were performed for the oil and ethylic biodiesel. The biofuel was characterized in terms of its flash and cloud points, heat capacity and cetane number. The properties studied were compared with conventional vegetable oils and biodiesel, presenting little differences and demonstrating the high viability of biodiesel from microalgae oil.
DOI: 10.6084/m9.figshare.7941839
title: Mensurando as Disparidades Regionais no Brasil: Salários, Custo de Vida e Amenidades Locais

description: Abstract This paper presents an alternative measure for quality of life (amenities) given by the housing-cost-earnings differentials for micro-regions of Brazil calculated based on microdata from the 2010 Census. The paper show that housing rentals and earnings increase in a nearly linear manner. The results for the quality of life index adjusted by housing quality and caracteristics of its tenant suggest that poorer micro-regions have lower levels of ameinities. Furthermore, the results indicate that the value of amenities is related to geographic location.
DOI: 10.6084/m9.figshare.7941845
title: Clinical applications of retrograde autologous priming in cardiopulmonary bypass in pediatric cardiac surgery

description: Retrograde autologous priming (RAP) has been routinely applied in cardiac pediatric cardiopulmonary bypass (CPB). However, this technique is performed in pediatric patients weighing more than 20 kg, and research about its application in pediatric patients weighing less than 20 kg is still scarce. This study explored the clinical application of RAP in CPB in pediatric patients undergoing cardiac surgery. Sixty pediatric patients scheduled for cardiac surgery were randomly divided into control and experimental groups. The experimental group was treated with CPB using RAP, while the control group was treated with conventional CPB (priming with suspended red blood cells, plasma and albumin). The hematocrit (Hct) and lactate (Lac) levels at different perioperative time-points, mechanical ventilation time, hospitalization duration, and intraoperative and postoperative blood usage were recorded. Results showed that Hct levels at 15 min after CPB beginning (T2) and at CPB end (T3), and number of intraoperative blood transfusions were significantly lower in the experimental group (P&lt;0.05). There were no significant differences in CPB time, aortic blocking time, T2-Lac value or T3-Lac between the two groups (P&gt;0.05). Postoperatively, there were no significant differences in Hct (2 h after surgery), mechanical ventilation time, intensive care unit time, or postoperative blood transfusion between two groups (P&gt;0.05). RAP can effectively reduce the hemodilution when using less or not using any banked blood, while meeting the intraoperative perfusion conditions, and decreasing the perioperative blood transfusion volume in pediatric patients.
DOI: 10.6084/m9.figshare.7941848
title: Primary Teachers’ Reflection and Collaboration Dynamics in a Mathematics Lesson Study

description: Abstract With this article we aim to show how primary teachers teaching that participate in a lesson study in mathematics develop their reflections and collaboration. The research is qualitative and interpretive with a case study design. The results show that the involvement in moments of planning and analysis of the students’ work, where teachers reflect on practice and for practice helps them to develop collaborative relationships, moving from storytelling and scanning to joint work. The growing involvement of the group with the purpose of achieving common goals favored the development of teachers’ reflection levels. Initially, the teachers tended to attribute the students’ difficulties to the nature of mathematics or their immaturity. At the end, they identified their student's learning problems, suggested and justified ways to help them to overcome these difficulties and transposed these suggestions for changes to undertake in their own practice.
DOI: 10.6084/m9.figshare.7941848.v1
title: Primary Teachers’ Reflection and Collaboration Dynamics in a Mathematics Lesson Study

description: Abstract With this article we aim to show how primary teachers teaching that participate in a lesson study in mathematics develop their reflections and collaboration. The research is qualitative and interpretive with a case study design. The results show that the involvement in moments of planning and analysis of the students’ work, where teachers reflect on practice and for practice helps them to develop collaborative relationships, moving from storytelling and scanning to joint work. The growing involvement of the group with the purpose of achieving common goals favored the development of teachers’ reflection levels. Initially, the teachers tended to attribute the students’ difficulties to the nature of mathematics or their immaturity. At the end, they identified their student's learning problems, suggested and justified ways to help them to overcome these difficulties and transposed these suggestions for changes to undertake in their own practice.
DOI: 10.6084/m9.figshare.7941851.v1
title: Evaluation of energy expenditure in forward and backward movements performed by soccer referees

description: The aim of this study was to measure the energy expenditure for locomotor activities usually performed by soccer referees during a match (walking, jogging, and running) under laboratory conditions, and to compare forward with backward movements. The sample was composed by 10 male soccer referees, age 29±7.8 years, body mass 77.5±6.2 kg, stature 1.78±0.07 m and professional experience of 7.33±4.92 years. Referees were evaluated on two separate occasions. On the first day, maximal oxygen uptake (VO2max) was determined by a maximal treadmill test, and on the second day, the oxygen consumption was determined in different speeds of forward and backward movements. The mean VO2max was 41.20±3.60 mL·kg-1·min-1 and the mean heart rate achieved in the last stage of the test was 190.5±7.9 bpm. When results of forward and backward movements were compared at 1.62 m/s (walking speed), we found significant differences in VO2, in metabolic equivalents, and in kcal. However, the same parameters in forward and backward movements at jogging velocities (2.46 m/s) were not significantly different, showing that these motor activities have similar intensity. Backward movements at velocities equivalent to walking and jogging are moderate-intensity activities, with energy expenditure less than 9 kcal. Energy expenditure was overestimated by at least 35% when calculated by mathematical equations. In summary, we observed that backward movements are not high-intensity activities as has been commonly reported, and when calculated using equations available in the literature, energy expenditure was overestimated compared to the values obtained by indirect calorimetry.
DOI: 10.6084/m9.figshare.7941833
title: Bioethics and medical students: teaching method transition

description: Abstract Active methodologies has proven to be the best alternative for medical education. However, there no research, in the literature, comparing its use in teaching ethics and bioethics. Therefore, this study seeks to compare the knowledge of medical students from two different types of teaching (traditional and active) regarding the Code of Medical Ethics. The type of teaching methodology did not show impact on the degree of reading or knowledge of the Code of Medical Ethics, in addition both types of students believed to present the same degree of knowledge. However, students of the active methodology gave more importance to the bioethics and medical ethics discipline and presented greater knowledge on one of the questions concerning the standardization of the Code of Medical Ethics.
DOI: 10.6084/m9.figshare.7941836
title: Práticas Algébricas no Contexto de Projetos Pedagógicos de Modelagem

description: Resumo Apresentamos uma análise do processo de constituição de práticas algébricas no contexto de projetos pedagógicos de modelagem -PPM-. Partimos da ideia de que as práticas algébricas indicam um conjunto de ações orientadas ao tratamento analítico de quantidades indeterminadas, mas, no contexto dos PPM, se constituem mediante a coordenação de processos de covariação espaço–temporal das quantidades intencionalmente escolhidas, com formas de correlação próprias das estruturas conceituais invariantes que tendem a experimentar um caráter “a-espacial” e “atemporal”. Seguindo as ideias da teoria da atividade (ENGESTRÖM, 1999; LEONTIEV, 1978; VYGOTSKY, 1981) e do construto teórico de Seres-Humanos-Com-Mídias (BORBA; VILLARREAL, 2005) consideramos que tal coordenação se desenvolve como um processo interativo de atores humanos (alunos e professor) e não humanos (artefatos culturais) que entram em atividade de modelagem e imbricam, na singularidade de suas ações, diferentes possibilidades de covariação e correlação. Concluímos que o caráter algébrico das práticas se dá mediante a configuração de uma zona de confluência de significação variacional/particular e correlacional/geral através do uso de diferentes formas de representação simbólicas. O processo é exemplificado mediante um dos momentos desenvolvidos por um grupo de alunos de Biologia da UNESP/Campus Rio Claro, estado de São Paulo, Brasil, quando foram convidados a desenvolver projetos de modelagem em uma disciplina de Matemática no segundo semestre do ano de 2013.
DOI: 10.6084/m9.figshare.7941839.v1
title: Mensurando as Disparidades Regionais no Brasil: Salários, Custo de Vida e Amenidades Locais

description: Abstract This paper presents an alternative measure for quality of life (amenities) given by the housing-cost-earnings differentials for micro-regions of Brazil calculated based on microdata from the 2010 Census. The paper show that housing rentals and earnings increase in a nearly linear manner. The results for the quality of life index adjusted by housing quality and caracteristics of its tenant suggest that poorer micro-regions have lower levels of ameinities. Furthermore, the results indicate that the value of amenities is related to geographic location.
DOI: 10.6084/m9.figshare.7941845.v1
title: Clinical applications of retrograde autologous priming in cardiopulmonary bypass in pediatric cardiac surgery

description: Retrograde autologous priming (RAP) has been routinely applied in cardiac pediatric cardiopulmonary bypass (CPB). However, this technique is performed in pediatric patients weighing more than 20 kg, and research about its application in pediatric patients weighing less than 20 kg is still scarce. This study explored the clinical application of RAP in CPB in pediatric patients undergoing cardiac surgery. Sixty pediatric patients scheduled for cardiac surgery were randomly divided into control and experimental groups. The experimental group was treated with CPB using RAP, while the control group was treated with conventional CPB (priming with suspended red blood cells, plasma and albumin). The hematocrit (Hct) and lactate (Lac) levels at different perioperative time-points, mechanical ventilation time, hospitalization duration, and intraoperative and postoperative blood usage were recorded. Results showed that Hct levels at 15 min after CPB beginning (T2) and at CPB end (T3), and number of intraoperative blood transfusions were significantly lower in the experimental group (P&lt;0.05). There were no significant differences in CPB time, aortic blocking time, T2-Lac value or T3-Lac between the two groups (P&gt;0.05). Postoperatively, there were no significant differences in Hct (2 h after surgery), mechanical ventilation time, intensive care unit time, or postoperative blood transfusion between two groups (P&gt;0.05). RAP can effectively reduce the hemodilution when using less or not using any banked blood, while meeting the intraoperative perfusion conditions, and decreasing the perioperative blood transfusion volume in pediatric patients.
DOI: 10.6084/m9.figshare.7941824
title: Impact of Coronary Artery Bypass Grafting on Muscle Mass Reduction on the 7th Postoperative Day

description: Abstract Background: Ischemic heart failure is a chronic and degenerative disease with high morbidity and mortality in the world. Coronary artery bypass grafting is indicated as elective treatment and may cause a catabolic state that depletes energy reserves. Data on body composition evaluation in the postoperative period of major cardiac surgery are limited. Objective: To evaluate the influence of elective coronary artery bypass grafting on body composition on the seventh postoperative day of patients with ischemic heart failure. Methods: A cross-sectional study was carried out in which eighteen volunteers with New York Heart Association Class II and III heart failure underwent coronary artery bypass grafting. The energy and protein reserves of the participants were evaluated by anthropometry in the preoperative and on the seventh postoperative day. Paired t-Test or Mann-Whitney test was used if applicable. A significance level was considered at p value &lt; 0.05. Results: A significant loss of muscle mass was observed through the reduction of arm muscle circumference after surgery (4.2%, p 0.007). Major surgery causes hypermetabolic state and systemic inflammatory stimulus, due to the release of hormones and cytokines that may justify the observed loss of muscle mass. Conclusion: Coronary artery bypass grafting had an impact on muscle mass reduction seven days after surgery in patients with ischemic heart failure.
DOI: 10.6084/m9.figshare.7941827
title: Farmers’ approaches on occupational health and safety: the case of city of Osmaniye and Konya, Turkey

description: ABSTRACT: The aim of this study was to investigate the knowledge levels of farmers who operate in agricultural activities. This activityconsidered among the most dangerous sectors in Turkey and around the world, on occupational accidents and diseases, occupational health and safety (OHS). The other objective was to learn about farmers’ thoughts and contribute to raise awareness and disseminate of occupational health and safety, in Osmaniye and Konya provinces where intensive agricultural activities take place. For this purpose, a face-to-face interview was conducted with 185 farmers in Osmaniye and Konya provinces. According to the survey results, 45.9% of the farmers stated that they had no idea about occupational health and safety, while only 24.3% of them had occupational health and safety education. There are statistically significant differences in farmers’ age and learning status, their views on occupational health and safety, and their knowledge of occupational health and safety obligations in agriculture. More awareness on occupational health and safety in the agricultural sector should be established. Information and education activities should be carried out to minimize risks and dangers.
DOI: 10.6084/m9.figshare.7941830
title: NANOTOXICOLOGY OF SILVER NANOPARTICLES: TOXICITY IN ANINALS AND HUMANS

description: Silver nanoparticles (AgNPs) have important antimicrobial activity. These nanoparticles are present in several commercial products, leading to human and environmental exposure. This review presents a critical view of the toxic effects of Ag NPs on in vitro and in vivo biological models. It is noteworthy that the toxicity of AgNPs is dependent on several parameters, such as the preparation mode of the colloidal suspension of the nanoparticles, their state of aggregation, the chemical nature of the nanoparticles, surface size, morphology, dose, cell type, nature of the living organism, among others. In general, low concentrations of AgNPs do not present significant toxicity in in vitro and in vivo assays, however with the increase of the concentration of AgNPs there is a significant increase of nanoparticle toxicity and its accumulation in diverse tissues/organs. It should be emphasized that in living organisms, exposure routes should be taken into account, such as ingestion and inhalation. At high concentrations, inhalation or ingestion of AgNPs can cause adverse effects and even lead to human death. In this context, the importance of further studies of the toxicity of AgNPs in several in vitro and in vivo models is emphasized.
DOI: 10.6084/m9.figshare.7941833.v1
title: Bioethics and medical students: teaching method transition

description: Abstract Active methodologies has proven to be the best alternative for medical education. However, there no research, in the literature, comparing its use in teaching ethics and bioethics. Therefore, this study seeks to compare the knowledge of medical students from two different types of teaching (traditional and active) regarding the Code of Medical Ethics. The type of teaching methodology did not show impact on the degree of reading or knowledge of the Code of Medical Ethics, in addition both types of students believed to present the same degree of knowledge. However, students of the active methodology gave more importance to the bioethics and medical ethics discipline and presented greater knowledge on one of the questions concerning the standardization of the Code of Medical Ethics.
DOI: 10.6084/m9.figshare.7941836.v1
title: Práticas Algébricas no Contexto de Projetos Pedagógicos de Modelagem

description: Resumo Apresentamos uma análise do processo de constituição de práticas algébricas no contexto de projetos pedagógicos de modelagem -PPM-. Partimos da ideia de que as práticas algébricas indicam um conjunto de ações orientadas ao tratamento analítico de quantidades indeterminadas, mas, no contexto dos PPM, se constituem mediante a coordenação de processos de covariação espaço–temporal das quantidades intencionalmente escolhidas, com formas de correlação próprias das estruturas conceituais invariantes que tendem a experimentar um caráter “a-espacial” e “atemporal”. Seguindo as ideias da teoria da atividade (ENGESTRÖM, 1999; LEONTIEV, 1978; VYGOTSKY, 1981) e do construto teórico de Seres-Humanos-Com-Mídias (BORBA; VILLARREAL, 2005) consideramos que tal coordenação se desenvolve como um processo interativo de atores humanos (alunos e professor) e não humanos (artefatos culturais) que entram em atividade de modelagem e imbricam, na singularidade de suas ações, diferentes possibilidades de covariação e correlação. Concluímos que o caráter algébrico das práticas se dá mediante a configuração de uma zona de confluência de significação variacional/particular e correlacional/geral através do uso de diferentes formas de representação simbólicas. O processo é exemplificado mediante um dos momentos desenvolvidos por um grupo de alunos de Biologia da UNESP/Campus Rio Claro, estado de São Paulo, Brasil, quando foram convidados a desenvolver projetos de modelagem em uma disciplina de Matemática no segundo semestre do ano de 2013.
DOI: 10.6084/m9.figshare.7941824.v1
title: Impact of Coronary Artery Bypass Grafting on Muscle Mass Reduction on the 7th Postoperative Day

description: Abstract Background: Ischemic heart failure is a chronic and degenerative disease with high morbidity and mortality in the world. Coronary artery bypass grafting is indicated as elective treatment and may cause a catabolic state that depletes energy reserves. Data on body composition evaluation in the postoperative period of major cardiac surgery are limited. Objective: To evaluate the influence of elective coronary artery bypass grafting on body composition on the seventh postoperative day of patients with ischemic heart failure. Methods: A cross-sectional study was carried out in which eighteen volunteers with New York Heart Association Class II and III heart failure underwent coronary artery bypass grafting. The energy and protein reserves of the participants were evaluated by anthropometry in the preoperative and on the seventh postoperative day. Paired t-Test or Mann-Whitney test was used if applicable. A significance level was considered at p value &lt; 0.05. Results: A significant loss of muscle mass was observed through the reduction of arm muscle circumference after surgery (4.2%, p 0.007). Major surgery causes hypermetabolic state and systemic inflammatory stimulus, due to the release of hormones and cytokines that may justify the observed loss of muscle mass. Conclusion: Coronary artery bypass grafting had an impact on muscle mass reduction seven days after surgery in patients with ischemic heart failure.
DOI: 10.6084/m9.figshare.7941827.v1
title: Farmers’ approaches on occupational health and safety: the case of city of Osmaniye and Konya, Turkey

description: ABSTRACT: The aim of this study was to investigate the knowledge levels of farmers who operate in agricultural activities. This activityconsidered among the most dangerous sectors in Turkey and around the world, on occupational accidents and diseases, occupational health and safety (OHS). The other objective was to learn about farmers’ thoughts and contribute to raise awareness and disseminate of occupational health and safety, in Osmaniye and Konya provinces where intensive agricultural activities take place. For this purpose, a face-to-face interview was conducted with 185 farmers in Osmaniye and Konya provinces. According to the survey results, 45.9% of the farmers stated that they had no idea about occupational health and safety, while only 24.3% of them had occupational health and safety education. There are statistically significant differences in farmers’ age and learning status, their views on occupational health and safety, and their knowledge of occupational health and safety obligations in agriculture. More awareness on occupational health and safety in the agricultural sector should be established. Information and education activities should be carried out to minimize risks and dangers.
DOI: 10.6084/m9.figshare.7941830.v1
title: NANOTOXICOLOGY OF SILVER NANOPARTICLES: TOXICITY IN ANINALS AND HUMANS

description: Silver nanoparticles (AgNPs) have important antimicrobial activity. These nanoparticles are present in several commercial products, leading to human and environmental exposure. This review presents a critical view of the toxic effects of Ag NPs on in vitro and in vivo biological models. It is noteworthy that the toxicity of AgNPs is dependent on several parameters, such as the preparation mode of the colloidal suspension of the nanoparticles, their state of aggregation, the chemical nature of the nanoparticles, surface size, morphology, dose, cell type, nature of the living organism, among others. In general, low concentrations of AgNPs do not present significant toxicity in in vitro and in vivo assays, however with the increase of the concentration of AgNPs there is a significant increase of nanoparticle toxicity and its accumulation in diverse tissues/organs. It should be emphasized that in living organisms, exposure routes should be taken into account, such as ingestion and inhalation. At high concentrations, inhalation or ingestion of AgNPs can cause adverse effects and even lead to human death. In this context, the importance of further studies of the toxicity of AgNPs in several in vitro and in vivo models is emphasized.