cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6857426
title: Growth, production and water consumption of coriander in hydroponic system using brackish waters

description: ABSTRACT An experiment was carried out in an adapted DFT (deep film technique) hydroponic system in PVC pipes to evaluate the growth, production and water consumption of coriander cv. ‘Verdão’, during June-July 2014. The experiment was carried out in a randomized block design with five replicates, in a 2 x 4 factorial scheme, totaling 40 plots. Two intervals of nutrient solution recirculation (0.25 and 2 h) and four levels of water electrical conductivity (ECw 0.26, 2.47, 4.91 and 7.0 dS m-1) were evaluated. At 25 days after transplanting (DAT), the reductions in plant height and in the shoot fresh and dry matter of the bunch were 2.95, 6.08 and 3.32% per unit increase of ECw (in dS m-1). Despite the reductions in growth and production, saline stress did not cause any damage to the visual aspect of coriander. The accumulated water consumption for the periods of 1-20 and 1-24 DAT significantly decreased by 5.26 and 5.85% per unit increase of ECw. It was concluded that it is viable to use a nutrient solution recirculation interval of 2 h, without production losses, and this represents a reduction of approximately 64% in electricity consumption.
DOI: 10.6084/m9.figshare.6857429.v1
title: The association between periodontal conditions, inflammation, nutritional status and calcium-phosphate metabolism disorders in hemodialysis patients

description: Abstract Objectives To analyze the association between periodontal conditions and inflammation, nutritional status and calcium-phosphate metabolism disorders in hemodialysis (HD) patients. Material and Methods We analyzed 128 HD patients divided into two groups: dentate (n = 103) and edentulous (n=25). The following items were assessed: baseline characteristics, age at the start and duration of HD, biochemical data: C-reactive protein (CRP), serum albumin, calcium, phosphorus, alkaline phosphatase, parathormone. A single dentist performed a complete dental/periodontal examination, including parameters of oral hygiene and gingival bleeding. Results One person had healthy periodontium, 62.14% of the patients had gingivitis, and 36.9% had moderate or severe periodontitis. The age at HD onset had a positive impact on periodontal status and negatively correlated with the number of teeth. A positive correlation between age and CRP level and negative correlations between age and serum albumin and phosphorus were found. Pocket depth (PD) was negatively correlated with serum albumin. The number of teeth was negatively correlated with serum CRP. Conclusions High prevalence and severity of periodontal disease are observed in hemodialysis patients. There is a high probability that periodontal disease may be present at the early stages of chronic kidney disease (CKD) before the hemodialysis onset.
DOI: 10.6084/m9.figshare.6857426.v1
title: Growth, production and water consumption of coriander in hydroponic system using brackish waters

description: ABSTRACT An experiment was carried out in an adapted DFT (deep film technique) hydroponic system in PVC pipes to evaluate the growth, production and water consumption of coriander cv. ‘Verdão’, during June-July 2014. The experiment was carried out in a randomized block design with five replicates, in a 2 x 4 factorial scheme, totaling 40 plots. Two intervals of nutrient solution recirculation (0.25 and 2 h) and four levels of water electrical conductivity (ECw 0.26, 2.47, 4.91 and 7.0 dS m-1) were evaluated. At 25 days after transplanting (DAT), the reductions in plant height and in the shoot fresh and dry matter of the bunch were 2.95, 6.08 and 3.32% per unit increase of ECw (in dS m-1). Despite the reductions in growth and production, saline stress did not cause any damage to the visual aspect of coriander. The accumulated water consumption for the periods of 1-20 and 1-24 DAT significantly decreased by 5.26 and 5.85% per unit increase of ECw. It was concluded that it is viable to use a nutrient solution recirculation interval of 2 h, without production losses, and this represents a reduction of approximately 64% in electricity consumption.
DOI: 10.6084/m9.figshare.6857423
title: MAPPING THE MANAGEMENT AND PEDAGOGICAL SUPPORT COMPETENCES OF PROFESSIONALS WORKING WITH DISTANCE LEARNING

description: ABSTRACT: The aim of the present study was to empirically diagnose the professional competencies (technical and behavioral) concerning the management, pedagogical and secretarial support in distance learning courses provided by Brazil Open University. A sequential mixed model design was applied through two empirical stages, which encompassed one qualitative stage composed of documental analysis and of the conduction of nine semi-structured interviews; and the was based on the application of a totally structured questionnaire. Data treatment was conducted through content and statistical analysis. Results showed low competence gaps, fact that suggests that activities focused on recruitment, training and on competence development have been possibly performed in compliance with the attributes needed by the secretarial and support teams. It is recommended to apply data evaluations based on multiple sources and on the psychometric validation of the competence instrument in further studies in order to identify its internal and external validity evidences.
DOI: 10.6084/m9.figshare.6857420
title: TEACHING KNOWLEDGE: POLICIES FOR TEACHER’S KNOWLEDGE RECOGNITION IN BRAZILIAN VOCATIONAL EDUCATION

description: Abstract: This communication discusses the development and implementation of policies for the recognition of knowledge of Basic Technical and Technological Education teachers. Initially, we present the regulatory framework of the process of Knowledge and Competence Recognition (RSC) of these teachers, exploring the way that RSC has been implemented in a vocational education institution through analysis of documents and regulations. In order to discuss the knowledge built through he work, we used ergology contributions, especially the works of Durrive and Schwartz (2007), Schwartz (1998, 2010) and Trinquet (2010). To address the theme “teaching knowledge”, we carried out a bibliographical research with authors such as Schön (1992), Tardif (2002), Therrien (2001), among others, that wrote about the specificity of these knowledge and its importance for teaching. Finally, we point out the need to think about how teacher knowledge recognition’s policies have been constituted and what kinds of knowledge they value.
DOI: 10.6084/m9.figshare.6857420.v1
title: TEACHING KNOWLEDGE: POLICIES FOR TEACHER’S KNOWLEDGE RECOGNITION IN BRAZILIAN VOCATIONAL EDUCATION

description: Abstract: This communication discusses the development and implementation of policies for the recognition of knowledge of Basic Technical and Technological Education teachers. Initially, we present the regulatory framework of the process of Knowledge and Competence Recognition (RSC) of these teachers, exploring the way that RSC has been implemented in a vocational education institution through analysis of documents and regulations. In order to discuss the knowledge built through he work, we used ergology contributions, especially the works of Durrive and Schwartz (2007), Schwartz (1998, 2010) and Trinquet (2010). To address the theme “teaching knowledge”, we carried out a bibliographical research with authors such as Schön (1992), Tardif (2002), Therrien (2001), among others, that wrote about the specificity of these knowledge and its importance for teaching. Finally, we point out the need to think about how teacher knowledge recognition’s policies have been constituted and what kinds of knowledge they value.
DOI: 10.6084/m9.figshare.6857423.v1
title: MAPPING THE MANAGEMENT AND PEDAGOGICAL SUPPORT COMPETENCES OF PROFESSIONALS WORKING WITH DISTANCE LEARNING

description: ABSTRACT: The aim of the present study was to empirically diagnose the professional competencies (technical and behavioral) concerning the management, pedagogical and secretarial support in distance learning courses provided by Brazil Open University. A sequential mixed model design was applied through two empirical stages, which encompassed one qualitative stage composed of documental analysis and of the conduction of nine semi-structured interviews; and the was based on the application of a totally structured questionnaire. Data treatment was conducted through content and statistical analysis. Results showed low competence gaps, fact that suggests that activities focused on recruitment, training and on competence development have been possibly performed in compliance with the attributes needed by the secretarial and support teams. It is recommended to apply data evaluations based on multiple sources and on the psychometric validation of the competence instrument in further studies in order to identify its internal and external validity evidences.
DOI: 10.6084/m9.figshare.6857411
title: Effect of Plasma Level of Vitamin D on Postoperative Atrial Fibrillation in Patients Undergoing Isolated Coronary Artery Bypass Grafting

description: Abstract Objective: Postoperative atrial fibrillation (PoAF) is a common complication after coronary artery bypass grafting (CABG). The aim of the present study was to evaluate the association between development of PoAF and vitamin D levels in patients undergoing isolated CABG. Methods: This prospective randomized clinical trial was conducted on the patients with isolated CABG. The study was terminated when 50 patients in both PoAF(+) group and PoAF(-) group were reached. Development of AF until discharge period was assessed. Vitamin D level was measured immediately after AF; it was measured on the discharge day for the patients without PoAF. Predictive values of the independent variables were measured for the development of PoAF. Results: The groups were separated as PoAF(-) group (66% male, mean age 58.18±10.98 years) and PoAF(+) group (74% male, mean age 61.94±10.88 years). 25(OH) vitamin D level (OR=0.855, 95% CI: 0.780-0.938, P=0.001) and &gt; 65 years (OR=3.525, 95% CI: 1.310-9.483, P=0.013) were identified as an independent predictor of postoperative AF after CABG surgery in multivariate analysis. The cut-off level for 25(OH) vitamin D level in receiver-operating characteristic curve analysis was determined as 7.65 with sensitivity of 60% and specificity of 64% for predicting PoAF (area under the curve: 0.679, P=0.002). Conclusion: Vitamin D level is considered an independent predictor for development of PoAF. Lower vitamin D levels may be one of the reasons for PoAF.
DOI: 10.17861/a1bebd55-b44f-4b34-82c0-c0fe925762c6
title: Supporting data for "Computational optical imaging with a photonic lantern" by Choudhury et al

description: This location contains the raw data to support this manuscript.
DOI: 10.6084/m9.figshare.6857408
title: DEMOCRATIZATION AND INCLUSION IN ARGENTINEAN UNIVERSITY: ITS SCOPE DURING THE KIRCHNER GOVERNMENTS (2003-2015)

description: Abstract: In Argentina, during the administrations of Nestor and Cristina Kirchner (2003-2015), the expansion of opportunities in universities had a central place in government’s agenda. In this paper we intend to explore the scope and limitations of these policies analyzed from the theoretical perspective through democracy and inclusion notions. These policies were put into practice through creation of new institutions -especially those located in the suburbs of Buenos Aires- and direct financial aid programs. These strategies increase educational opportunities and improve its access to the most excluded sectors. Nevertheless, as they are not articulated with policies that address in a complex way the link between socio-economic, institutional and labor market variables, their impact in the reduction of social inequalities has a limited effect.
DOI: 10.6084/m9.figshare.6857411.v1
title: Effect of Plasma Level of Vitamin D on Postoperative Atrial Fibrillation in Patients Undergoing Isolated Coronary Artery Bypass Grafting

description: Abstract Objective: Postoperative atrial fibrillation (PoAF) is a common complication after coronary artery bypass grafting (CABG). The aim of the present study was to evaluate the association between development of PoAF and vitamin D levels in patients undergoing isolated CABG. Methods: This prospective randomized clinical trial was conducted on the patients with isolated CABG. The study was terminated when 50 patients in both PoAF(+) group and PoAF(-) group were reached. Development of AF until discharge period was assessed. Vitamin D level was measured immediately after AF; it was measured on the discharge day for the patients without PoAF. Predictive values of the independent variables were measured for the development of PoAF. Results: The groups were separated as PoAF(-) group (66% male, mean age 58.18±10.98 years) and PoAF(+) group (74% male, mean age 61.94±10.88 years). 25(OH) vitamin D level (OR=0.855, 95% CI: 0.780-0.938, P=0.001) and &gt; 65 years (OR=3.525, 95% CI: 1.310-9.483, P=0.013) were identified as an independent predictor of postoperative AF after CABG surgery in multivariate analysis. The cut-off level for 25(OH) vitamin D level in receiver-operating characteristic curve analysis was determined as 7.65 with sensitivity of 60% and specificity of 64% for predicting PoAF (area under the curve: 0.679, P=0.002). Conclusion: Vitamin D level is considered an independent predictor for development of PoAF. Lower vitamin D levels may be one of the reasons for PoAF.
DOI: 10.6084/m9.figshare.6857405
title: Monitoring reinforcement corrosion of concretes designed for nuclear facilitie

description: ABSTRACT The facilities designed for the peaceful activities of nuclear energy are made with different materials, among them, reinforced concrete. This material, in addition to being structural, is a barrier for isolation and confinement from the environment of the radioactive materials. One of its degradation mechanisms is the corrosion of the reinforcement, a frequent cause of premature failure in service. Consequently, it is essential to study this degradation mechanism in formulations developed for this purpose, as well as the development and implementation of monitoring techniques. The objective of this work is to compare, from the corrosion of reinforcement point of view, two concrete formulations, one made with ordinary portland cement and the other with pozzolanic portland cement. Both formulations are candidate for some nuclear applications, such as the Low Radioactive Waste disposal facilities, whose durability requirement is higher than 300 years. The results of approximately four years of monitoring are presented. The parameters followed are: corrosion potential and corrosion rate of the reinforcements, electrical resistivity, oxygen flow, internal temperature and carbonation rate of concrete. These parameters were measured and monitored in reinforced concrete specimens by embedded sensors previously developed in our laboratory. Also, unreinforced specimens were prepared to measure the carbonation rate. The presence of reinforcements provides the possibility of monitoring directly on them the corrosion potential, the corrosion rate and electrical resistivity of concrete, using on-surface electrodes provided by a commercial instrument. This allows the comparison of the parameters monitored by embedded sensors and the on-surface electrodes.
DOI: 10.6084/m9.figshare.6857405.v1
title: Monitoring reinforcement corrosion of concretes designed for nuclear facilitie

description: ABSTRACT The facilities designed for the peaceful activities of nuclear energy are made with different materials, among them, reinforced concrete. This material, in addition to being structural, is a barrier for isolation and confinement from the environment of the radioactive materials. One of its degradation mechanisms is the corrosion of the reinforcement, a frequent cause of premature failure in service. Consequently, it is essential to study this degradation mechanism in formulations developed for this purpose, as well as the development and implementation of monitoring techniques. The objective of this work is to compare, from the corrosion of reinforcement point of view, two concrete formulations, one made with ordinary portland cement and the other with pozzolanic portland cement. Both formulations are candidate for some nuclear applications, such as the Low Radioactive Waste disposal facilities, whose durability requirement is higher than 300 years. The results of approximately four years of monitoring are presented. The parameters followed are: corrosion potential and corrosion rate of the reinforcements, electrical resistivity, oxygen flow, internal temperature and carbonation rate of concrete. These parameters were measured and monitored in reinforced concrete specimens by embedded sensors previously developed in our laboratory. Also, unreinforced specimens were prepared to measure the carbonation rate. The presence of reinforcements provides the possibility of monitoring directly on them the corrosion potential, the corrosion rate and electrical resistivity of concrete, using on-surface electrodes provided by a commercial instrument. This allows the comparison of the parameters monitored by embedded sensors and the on-surface electrodes.
DOI: 10.6084/m9.figshare.6857408.v1
title: DEMOCRATIZATION AND INCLUSION IN ARGENTINEAN UNIVERSITY: ITS SCOPE DURING THE KIRCHNER GOVERNMENTS (2003-2015)

description: Abstract: In Argentina, during the administrations of Nestor and Cristina Kirchner (2003-2015), the expansion of opportunities in universities had a central place in government’s agenda. In this paper we intend to explore the scope and limitations of these policies analyzed from the theoretical perspective through democracy and inclusion notions. These policies were put into practice through creation of new institutions -especially those located in the suburbs of Buenos Aires- and direct financial aid programs. These strategies increase educational opportunities and improve its access to the most excluded sectors. Nevertheless, as they are not articulated with policies that address in a complex way the link between socio-economic, institutional and labor market variables, their impact in the reduction of social inequalities has a limited effect.
DOI: 10.6084/m9.figshare.6857402
title: Bacillus subtilis improves maize tolerance to salinity

description: ABSTRACT: The aim of this study was to evaluate the biochemical responses of maize, under saline stress, inoculated with Bacillus subtilis. Four levels of salinity were assessed: 0mM, 50mM, 100mM, and 200mM of sodium chloride (NaCl). Saline conditions influenced negatively maize growth. However, the inoculation of B. subtilis improved the plant growth at highest level of NaCl. Chlorophyll content decreased while proline increased in inoculated plants submitted to highest salt levels. Also, B. subtilis increased the relative water content in leaves. B. subtilis improves the plant growth under salinity and ameliorates the biochemical damages in maize.
DOI: 10.6084/m9.figshare.6857402.v1
title: Bacillus subtilis improves maize tolerance to salinity

description: ABSTRACT: The aim of this study was to evaluate the biochemical responses of maize, under saline stress, inoculated with Bacillus subtilis. Four levels of salinity were assessed: 0mM, 50mM, 100mM, and 200mM of sodium chloride (NaCl). Saline conditions influenced negatively maize growth. However, the inoculation of B. subtilis improved the plant growth at highest level of NaCl. Chlorophyll content decreased while proline increased in inoculated plants submitted to highest salt levels. Also, B. subtilis increased the relative water content in leaves. B. subtilis improves the plant growth under salinity and ameliorates the biochemical damages in maize.
DOI: 10.6084/m9.figshare.6857393
title: Squeeze Theorem: alternative didactical discussion articulating usual practices and the Geogebra software

description: Abstract In this article, we aim at determining the personal relationship of 1st-year Mozambican undergraduate prospect teachers in mathematics with the Squeeze Theorem and the didactical effectiveness of Geogebra in its discussion in the classroom. The research question was: how did the students, who participated in the experiment, understand the Squeeze Theorem and how would the Geogebra software capitalize the discussion of this theorem in the classroom? We used the Anthropological Theory of Didactics and the Theory of Instrumentation. It was a qualitative research in the shape of a case study. Strategically, we did a preliminary and a priori analysis of the target content, the experiment itself, a posteriori analysis and internal validation of the results. The experiment allowed us to understand how the blended teaching through the computer and usual practices can assist students in understanding the Squeeze Theorem.
DOI: 10.6084/m9.figshare.6857399
title: Evaluation of association of DRD2 TaqIA and -141C InsDel polymorphisms with food intake and anthropometric data in children at the first stages of development

description: Abstract The reward sensation after food intake may be different between individuals and variants in genes related to the dopaminergic system may indicate a different response in people exposed to the same environmental factors. This study investigated the association of TaqIA (rs1800497) and -141C InsDel (rs1799732) variants in DRD2/ANKK1 gene with food intake and adiposity parameters in a cohort of children. The sample consisted of 270 children followed until 7 to 8 years old. DNA was extracted from blood and polymorphisms were detected by PCR-RFLP analysis. Food intake and nutritional status were compared among individuals with different SNP genotypes. Children carrying the A1 allele (TaqIA) had higher energy of lipid dense foods (LDF) when compared with A2/A2 homozygous children at 7 to 8 years old (GLM p=0.004; Mann Whitney p=0.005). No association was detected with -141C Ins/Del polymorphism. To our knowledge, this is the first association study of the DRD2 TaqIA and -141C Ins/Del polymorphism with food intake and anthropometric parameters in children. DRD2 TaqIA polymorphism has been associated with a reduction in D2 dopamine receptor availability. Therefore, the differences observed in LDF intake in our sample may occur as an effort to compensate the hypodopaminergic functioning.
DOI: 10.6084/m9.figshare.6857399.v1
title: Evaluation of association of DRD2 TaqIA and -141C InsDel polymorphisms with food intake and anthropometric data in children at the first stages of development

description: Abstract The reward sensation after food intake may be different between individuals and variants in genes related to the dopaminergic system may indicate a different response in people exposed to the same environmental factors. This study investigated the association of TaqIA (rs1800497) and -141C InsDel (rs1799732) variants in DRD2/ANKK1 gene with food intake and adiposity parameters in a cohort of children. The sample consisted of 270 children followed until 7 to 8 years old. DNA was extracted from blood and polymorphisms were detected by PCR-RFLP analysis. Food intake and nutritional status were compared among individuals with different SNP genotypes. Children carrying the A1 allele (TaqIA) had higher energy of lipid dense foods (LDF) when compared with A2/A2 homozygous children at 7 to 8 years old (GLM p=0.004; Mann Whitney p=0.005). No association was detected with -141C Ins/Del polymorphism. To our knowledge, this is the first association study of the DRD2 TaqIA and -141C Ins/Del polymorphism with food intake and anthropometric parameters in children. DRD2 TaqIA polymorphism has been associated with a reduction in D2 dopamine receptor availability. Therefore, the differences observed in LDF intake in our sample may occur as an effort to compensate the hypodopaminergic functioning.