cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.23612725
title: Productivity in the peanut under salt stress in soil with a cover of plant mulch

description: ABSTRACT Peanut cultivation in the northeast of Brazil has been badly affected by salts accumulating in the irrigation water; in this respect, the use of plant mulch is one way of mitigating salt stress. The aim of this study was to evaluate the effect of irrigation using brackish water under different mulching strategies on productivity and water use efficiency in the peanut. The experiment was carried out under field conditions in Redenção, in the state of Ceará, in a randomised block design of split-plots with five replications, in which the plots corresponded to two levels of electrical conductivity of the irrigation water (0.8 and 4.0 dS m-1), and the subplots to six mulching strategies based on the phenology of the crop (MS1: mulch throughout the cycle; MS2: flowering stage; MS3: appearance of the gynophore; MS4: pod formation; MS5: final flowering stage; MS6: no mulch). The following were determined at the end of the experimental cycle: commercial, non-commercial and total number of pods, number of grains per pod, pod length and diameter, productivity and water use efficiency. Irrigation with lower-salinity water, together with mulching during the phenological stages of the peanut, affords better productive performance and greater water use efficiency. Salt stress reduced the length and diameter of the pods and had a negative effect on productivity and water use efficiency, both with and without the use of plant mulch during the phenological stages.
DOI: 10.6084/m9.figshare.23612725.v1
title: Productivity in the peanut under salt stress in soil with a cover of plant mulch

description: ABSTRACT Peanut cultivation in the northeast of Brazil has been badly affected by salts accumulating in the irrigation water; in this respect, the use of plant mulch is one way of mitigating salt stress. The aim of this study was to evaluate the effect of irrigation using brackish water under different mulching strategies on productivity and water use efficiency in the peanut. The experiment was carried out under field conditions in Redenção, in the state of Ceará, in a randomised block design of split-plots with five replications, in which the plots corresponded to two levels of electrical conductivity of the irrigation water (0.8 and 4.0 dS m-1), and the subplots to six mulching strategies based on the phenology of the crop (MS1: mulch throughout the cycle; MS2: flowering stage; MS3: appearance of the gynophore; MS4: pod formation; MS5: final flowering stage; MS6: no mulch). The following were determined at the end of the experimental cycle: commercial, non-commercial and total number of pods, number of grains per pod, pod length and diameter, productivity and water use efficiency. Irrigation with lower-salinity water, together with mulching during the phenological stages of the peanut, affords better productive performance and greater water use efficiency. Salt stress reduced the length and diameter of the pods and had a negative effect on productivity and water use efficiency, both with and without the use of plant mulch during the phenological stages.
DOI: 10.6084/m9.figshare.23612728
title: Risk perception and sensory analyses of fresh tomatoes obtained from an open market in São Paulo, Brazil

description: ABSTRACT The nutritional and sensory qualities of tomatoes favor their acceptance worldwide. This study was carried out to evaluate the risk perception of agrochemical and sensory residue in tomato consumption. Thus, 12 kg of organic tomatoes (OT) and 12 kg of conventional tomatoes (CT) at an equal maturation stage were selected. R version 3.6.1 was applied to the analysis of physical and chemical variables. The Mann-Whitney test with a value of p&lt;0.05 was used to verify associations between the groups. The sensory evaluation involved 37 volunteers and considered the mean answers of each question about the perception of fresh tomatoes. The OT presented about 13% more ascorbic acid in relation to CT, but there was no significant difference between them (p&gt;0.05). OT detected higher values for pH, soluble solids (ºBrix) and titratable acidity, but there were no significant differences between them (p&gt;0.05). Chlorfenapir residues below the Acceptable Daily Intake (IDA) value (0.03 mg/kg per capita) were detected, indicating a low risk of acute toxicity. Chlorfenapir is banned in Europe, but remains detected in Brazil. Public policies are needed to encourage sustainable food production.
DOI: 10.6084/m9.figshare.23612728.v1
title: Risk perception and sensory analyses of fresh tomatoes obtained from an open market in São Paulo, Brazil

description: ABSTRACT The nutritional and sensory qualities of tomatoes favor their acceptance worldwide. This study was carried out to evaluate the risk perception of agrochemical and sensory residue in tomato consumption. Thus, 12 kg of organic tomatoes (OT) and 12 kg of conventional tomatoes (CT) at an equal maturation stage were selected. R version 3.6.1 was applied to the analysis of physical and chemical variables. The Mann-Whitney test with a value of p&lt;0.05 was used to verify associations between the groups. The sensory evaluation involved 37 volunteers and considered the mean answers of each question about the perception of fresh tomatoes. The OT presented about 13% more ascorbic acid in relation to CT, but there was no significant difference between them (p&gt;0.05). OT detected higher values for pH, soluble solids (ºBrix) and titratable acidity, but there were no significant differences between them (p&gt;0.05). Chlorfenapir residues below the Acceptable Daily Intake (IDA) value (0.03 mg/kg per capita) were detected, indicating a low risk of acute toxicity. Chlorfenapir is banned in Europe, but remains detected in Brazil. Public policies are needed to encourage sustainable food production.
DOI: 10.6084/m9.figshare.23612730
title: Optimal concentration and efficiency of the photo fenton system for the treatment of a synthetic textile effluent

description: Abstract The Photo Fenton process is an alternative process for the treatment of effluents from the textile industry, being a reagent-based chemical on Fe2+ and H2O2 + UV light, whose mechanism consists of oxidizing the pollutants until they are suitable for discharge into bodies of water. This research seeks to determine the optimum concentration of Fe2+ - H2O2 in the treatment of a synthetic textile effluent and, subsequently, to evaluate the efficiency of the system. The synthetic textile effluent was prepared under laboratory conditions, FeSO4 and H2O2 were added at different concentrations, with exposure to UV-A light throughout the process, and it was determined that the optimum concentration of the Photo Fenton reagent was 400 mg L-1 of FeSO4 and 12 ml L-1 of H2O2, a dosage that reduced initial turbidity, color, and COD by 100%, 99% and 83%, respectively, and increased the DO by 11%. Turbidity removal was obtained by carrying out the treatment in an acid medium (pH 3). The presence of Fe2+ promoted the significant removal of COD. The increase in DO was obtained by the presence of H2O2 and UV-A light, and this in turn, had a considerable influence on the removal of effluent color. Regarding the efficiency of the system, it was determined that the Photo Fenton reagent is an excellent alternative for the treatment of textile effluents with high and low organic loads, reducing contaminants derived from industry processes.
DOI: 10.6084/m9.figshare.23612730.v1
title: Optimal concentration and efficiency of the photo fenton system for the treatment of a synthetic textile effluent

description: Abstract The Photo Fenton process is an alternative process for the treatment of effluents from the textile industry, being a reagent-based chemical on Fe2+ and H2O2 + UV light, whose mechanism consists of oxidizing the pollutants until they are suitable for discharge into bodies of water. This research seeks to determine the optimum concentration of Fe2+ - H2O2 in the treatment of a synthetic textile effluent and, subsequently, to evaluate the efficiency of the system. The synthetic textile effluent was prepared under laboratory conditions, FeSO4 and H2O2 were added at different concentrations, with exposure to UV-A light throughout the process, and it was determined that the optimum concentration of the Photo Fenton reagent was 400 mg L-1 of FeSO4 and 12 ml L-1 of H2O2, a dosage that reduced initial turbidity, color, and COD by 100%, 99% and 83%, respectively, and increased the DO by 11%. Turbidity removal was obtained by carrying out the treatment in an acid medium (pH 3). The presence of Fe2+ promoted the significant removal of COD. The increase in DO was obtained by the presence of H2O2 and UV-A light, and this in turn, had a considerable influence on the removal of effluent color. Regarding the efficiency of the system, it was determined that the Photo Fenton reagent is an excellent alternative for the treatment of textile effluents with high and low organic loads, reducing contaminants derived from industry processes.
DOI: 10.6084/m9.figshare.23612731
title: Heavy metal fractionation in Fluvic Entisols under saline conditions in Northeastern Brazil

description: ABSTRACT The long-term use of agrichemicals might add some heavy metals to soils and, there is little information about the dynamics of these elements in soils under saline conditions in semiarid regions. This study aimed to investigate the dynamics of heavy metals in the different fractions of Fluvic Entisols with saline conditions under long term of coconut cultivation in a semiarid region. Composite soil samples were collected in five agricultural areas and three areas under native vegetation. Physical, chemical, and heavy metal analyses were carried out in soil (semi total and fractionated contents). Quality of irrigation water and drainage water was also evaluated. Analytical results were normalized and subjected to analysis of variance, and means were compared by Scott-Knott test (P &lt; 0.05). Pearson correlation analysis was also used to assure a minimum correlation of variables justifying its use in the matrix of a factorial analysis. Semi-total contents of Cr, Ni, Pb and Zn (except Cu in some areas) were lower than previous local assessment and national guiding values, indicating that they do not cause harmful alterations in soil quality. Analyses of waters showed high levels of HCO3, indicating moderate restriction to use (due to the high levels of EC, SAR, Na and Cl). Fractionation of heavy metals revealed low risk of environmental pollution since most metal contents were bound to the oxidic, organic and residual fractions. The water used in irrigation contributes to the contents of heavy metals and to the salinity condition of the evaluated soils.
DOI: 10.6084/m9.figshare.23612731.v1
title: Heavy metal fractionation in Fluvic Entisols under saline conditions in Northeastern Brazil

description: ABSTRACT The long-term use of agrichemicals might add some heavy metals to soils and, there is little information about the dynamics of these elements in soils under saline conditions in semiarid regions. This study aimed to investigate the dynamics of heavy metals in the different fractions of Fluvic Entisols with saline conditions under long term of coconut cultivation in a semiarid region. Composite soil samples were collected in five agricultural areas and three areas under native vegetation. Physical, chemical, and heavy metal analyses were carried out in soil (semi total and fractionated contents). Quality of irrigation water and drainage water was also evaluated. Analytical results were normalized and subjected to analysis of variance, and means were compared by Scott-Knott test (P &lt; 0.05). Pearson correlation analysis was also used to assure a minimum correlation of variables justifying its use in the matrix of a factorial analysis. Semi-total contents of Cr, Ni, Pb and Zn (except Cu in some areas) were lower than previous local assessment and national guiding values, indicating that they do not cause harmful alterations in soil quality. Analyses of waters showed high levels of HCO3, indicating moderate restriction to use (due to the high levels of EC, SAR, Na and Cl). Fractionation of heavy metals revealed low risk of environmental pollution since most metal contents were bound to the oxidic, organic and residual fractions. The water used in irrigation contributes to the contents of heavy metals and to the salinity condition of the evaluated soils.
DOI: 10.6084/m9.figshare.23584857
title: Internationalizing the extension and extending the internationalization: a case study of the 3rd and 4th missions of the university

description: Abstract This article analyzes partial results of an outreach project offered by a higher education institution in southeastern Brazil that aimed to internationalize the outreach mission and extend the internationalization mission of the university through the support to small and medium-sized companies, thus focusing on the 3rd (outreach) and 4th (internationalization) missions of the university. To this end, a study was carried out in a small coffee-producing company participating in the project. The methodological approach adopted was that of a case study used to analyze the data collected through observations made during technical visits that involved capacity building and conversations with the owners and employees, in addition to a questionnaire answered by the company manager. The results of the study analysis highlighted the relevance of the university’s third and fourth missions through this project and its contribution to society. The study concludes with the suggestion of integrating the outreach and internationalization missions in projects like the one described here to bring the university closer to the community, fostering human, social, and economic development of society at its various levels, local, national, and global.
DOI: 10.6084/m9.figshare.23584857.v1
title: Internationalizing the extension and extending the internationalization: a case study of the 3rd and 4th missions of the university

description: Abstract This article analyzes partial results of an outreach project offered by a higher education institution in southeastern Brazil that aimed to internationalize the outreach mission and extend the internationalization mission of the university through the support to small and medium-sized companies, thus focusing on the 3rd (outreach) and 4th (internationalization) missions of the university. To this end, a study was carried out in a small coffee-producing company participating in the project. The methodological approach adopted was that of a case study used to analyze the data collected through observations made during technical visits that involved capacity building and conversations with the owners and employees, in addition to a questionnaire answered by the company manager. The results of the study analysis highlighted the relevance of the university’s third and fourth missions through this project and its contribution to society. The study concludes with the suggestion of integrating the outreach and internationalization missions in projects like the one described here to bring the university closer to the community, fostering human, social, and economic development of society at its various levels, local, national, and global.
DOI: 10.6084/m9.figshare.23612733
title: Bibliometric analysis on the applicability of anaerobic digestion in organic solid waste

description: Abstract Anaerobic biological treatment can comprise a viable route of CH4 production through the energy recovery of organic solid waste (OSW). This work therefore presented a bibliometric analysis of research trends on the theme "Applicability of biological treatment via Anaerobic Digestion in Organic Solid Waste", considering experimental articles published from 2018 to 2022 in the Web of Science database™; the analysis used VoSviewer software to define research trends, and found that the main terms addressed in the mapped scientific articles were anaerobic, waste, sludge, waste food, municipal waste, anaerobic co-digestion, sewage sludge, organic fraction, co-digestion and biogas. As a product of such mapping, an Interaction Network Diagram was constructed comprising the main terms in addition to a theoretical foundation on anaerobic digestion and biochemical and microbiological aspects about the process.
DOI: 10.6084/m9.figshare.23612733.v1
title: Bibliometric analysis on the applicability of anaerobic digestion in organic solid waste

description: Abstract Anaerobic biological treatment can comprise a viable route of CH4 production through the energy recovery of organic solid waste (OSW). This work therefore presented a bibliometric analysis of research trends on the theme "Applicability of biological treatment via Anaerobic Digestion in Organic Solid Waste", considering experimental articles published from 2018 to 2022 in the Web of Science database™; the analysis used VoSviewer software to define research trends, and found that the main terms addressed in the mapped scientific articles were anaerobic, waste, sludge, waste food, municipal waste, anaerobic co-digestion, sewage sludge, organic fraction, co-digestion and biogas. As a product of such mapping, an Interaction Network Diagram was constructed comprising the main terms in addition to a theoretical foundation on anaerobic digestion and biochemical and microbiological aspects about the process.
DOI: 10.6084/m9.figshare.23612736
title: Mass Death and Disappearance in Contemporary Necropolitical Democracies: Brazilian and Mexican cases

description: Abstract Based on ethnographic research in the state of Rio de Janeiro, Brazil, and Sonora, Mexico, we analyze mass deaths and disappearances under (formally) democratic regimes. A comparison by contrast reveals the similarities and differences between these two places. We establish a dialogue with the structural perspective of necropolitics and studies of victims’ experiences in different national contexts. We seek to link the notion of the necropolitical environment with analysis of practices of valorization of human life. To do so, we start by analyzing the experiences of people whose lives, as well as those of their families, are socially devalued (valuation studies). The concept of maternal body emerges from this analysis, enabling us to understand the dynamics of friction between the necropolitical environment and the emergence of possible forms of life, defined on the basis of inter-corporeal links between the families and their dead or disappeared loved ones.
DOI: 10.6084/m9.figshare.23612736.v1
title: Mass Death and Disappearance in Contemporary Necropolitical Democracies: Brazilian and Mexican cases

description: Abstract Based on ethnographic research in the state of Rio de Janeiro, Brazil, and Sonora, Mexico, we analyze mass deaths and disappearances under (formally) democratic regimes. A comparison by contrast reveals the similarities and differences between these two places. We establish a dialogue with the structural perspective of necropolitics and studies of victims’ experiences in different national contexts. We seek to link the notion of the necropolitical environment with analysis of practices of valorization of human life. To do so, we start by analyzing the experiences of people whose lives, as well as those of their families, are socially devalued (valuation studies). The concept of maternal body emerges from this analysis, enabling us to understand the dynamics of friction between the necropolitical environment and the emergence of possible forms of life, defined on the basis of inter-corporeal links between the families and their dead or disappeared loved ones.
DOI: 10.6084/m9.figshare.23612737
title: Policy on Integrative Health Practices of Federal District in Brazil: Evaluability Study

description: ABSTRACT Integrative and Complementary Practices in Health include different health care forms and have been present for more than decades in health services in the Federal District, where the implementation assessment of your policy is not completely defined. To assist in understanding reality, an Evaluability Study was carried out collaboratively, involving discussion with stakeholders, questionnaires and consultation of documents. The policy components were identified, organized and modeled. A simplified-logical-model and one of the operational-logical-models, validated by the participants, are presented in this article. For policy evaluation, the initial aspects of the modeled logical implementation chain were prioritized. It was identified as fundamental the promotion of the actors’ knowledge about the set of resources to the implementation of the Integrative Practices services and about the related intersectoral responsibilities. Formative, qualitative and collaborative assessments are suggested. The modeling carried out in the studies of this policy, shed light on the study of similar ones.
DOI: 10.6084/m9.figshare.23612737.v1
title: Policy on Integrative Health Practices of Federal District in Brazil: Evaluability Study

description: ABSTRACT Integrative and Complementary Practices in Health include different health care forms and have been present for more than decades in health services in the Federal District, where the implementation assessment of your policy is not completely defined. To assist in understanding reality, an Evaluability Study was carried out collaboratively, involving discussion with stakeholders, questionnaires and consultation of documents. The policy components were identified, organized and modeled. A simplified-logical-model and one of the operational-logical-models, validated by the participants, are presented in this article. For policy evaluation, the initial aspects of the modeled logical implementation chain were prioritized. It was identified as fundamental the promotion of the actors’ knowledge about the set of resources to the implementation of the Integrative Practices services and about the related intersectoral responsibilities. Formative, qualitative and collaborative assessments are suggested. The modeling carried out in the studies of this policy, shed light on the study of similar ones.
DOI: 10.6084/m9.figshare.23612740
title: Online social support: Theoretical and methodological issues, social and health benefits, and recommendations

description: ABSTRACT Online social support platforms (discussion forums, Facebook groups, chat rooms, etc.) are increasingly used by people living with chronic diseases and their caregivers, who aspire to exchange with people living with similar problems outside their traditional network. The objective of this literature review is to present online social support interventions described in recent scientific literature, to: 1) guide organizations that want to develop such intervention or improve an existing program, and 2) identify research avenues for researchers and recommendations for health planners. Some 59 scientific articles presenting online social support interventions (2006-2016) were analyzed using a grid emphasizing the theoretical conceptions of social support, the web platforms used and their functionalities, the design process and evaluation of the interventions, the methods of participation and animation set up by the organizations, the documented impacts of the interventions on the populations, and finally the lines of research and the recommendations for the field planners. A narrative methodology was used to highlight development and implementation challenges to support our partner organizations in developing or improving their online social support interventions.