cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14283633.v1
title: Netnography of curricular reform for Brazilian high school

description: ABSTRACT What are the discursive practices undertaken by the subjects who have discussed the reform of high school in the cyberspace of social media? Who are the subjects practicing these discussions? What are the narratives assumed and disseminated in the content of these speeches? With this investigation, we aim to problematize the ways in which the reform of high school has been approached in social networks with the largest number of users in Brazil. Thus, a netnography was carried out on the interfaces of social networks, Twitter, Facebook, Instagram and Youtube, using as source the written, imagery and audiovisual narratives broadcast by social actors who discussed MP No. 746 in these online places. The results indicate a dispute of narratives and socio-political counter-narratives between the right and the left, demarcated by the subjects themselves, which reverberated on the equation of the impacts that this reform will cause in the daily life of this stage of basic education.
DOI: 10.22008/fk2/oiajvo/asz3bg
title: snow_specific_area.tif

description: SICE version: Cloud removed, PPGC, SNAP7, pySICEv1.4
DOI: 10.6084/m9.figshare.14283633
title: Netnography of curricular reform for Brazilian high school

description: ABSTRACT What are the discursive practices undertaken by the subjects who have discussed the reform of high school in the cyberspace of social media? Who are the subjects practicing these discussions? What are the narratives assumed and disseminated in the content of these speeches? With this investigation, we aim to problematize the ways in which the reform of high school has been approached in social networks with the largest number of users in Brazil. Thus, a netnography was carried out on the interfaces of social networks, Twitter, Facebook, Instagram and Youtube, using as source the written, imagery and audiovisual narratives broadcast by social actors who discussed MP No. 746 in these online places. The results indicate a dispute of narratives and socio-political counter-narratives between the right and the left, demarcated by the subjects themselves, which reverberated on the equation of the impacts that this reform will cause in the daily life of this stage of basic education.
DOI: 10.6084/m9.figshare.5669866
title: Use of causal chain for an institutional analysis of water resources management in a semiarid reservoir in Paraíba

description: ABSTRACT The Epitacio Pessoa Reservoir is the second largest water reserve in the State of Paraíba. It has been used for urban water supply, irrigation and fishing activities. In the last 15 years, this reservoir has faced two episodes of great depletion of its storage volume due to the occurrence of extreme drought events and problems in its management. An evaluation of Epitacio Pessoa Reservoir was performed under the institutional aspect of water resources management in three periods representing the high climatic variability in the region (dry and rainy periods) in which the reservoir is located. The definition of the proposed methodology of this study describes the diagnostic of water resources management and the use of the Causal Chain Analysis (ACC) methodology. The study considered technical, political-managerial and socio-economic-cultural causes. The research concludes that the lack of definition of strategies, which could be capable of minimizing eventual risks of reservoir be collapsed, occurred due to the weak performance of the entities on exercising their functions in a coordinated, articulated and integrated way. The results show there is a trend of the problem be worsened.
DOI: 10.6084/m9.figshare.5669866.v1
title: Use of causal chain for an institutional analysis of water resources management in a semiarid reservoir in Paraíba

description: ABSTRACT The Epitacio Pessoa Reservoir is the second largest water reserve in the State of Paraíba. It has been used for urban water supply, irrigation and fishing activities. In the last 15 years, this reservoir has faced two episodes of great depletion of its storage volume due to the occurrence of extreme drought events and problems in its management. An evaluation of Epitacio Pessoa Reservoir was performed under the institutional aspect of water resources management in three periods representing the high climatic variability in the region (dry and rainy periods) in which the reservoir is located. The definition of the proposed methodology of this study describes the diagnostic of water resources management and the use of the Causal Chain Analysis (ACC) methodology. The study considered technical, political-managerial and socio-economic-cultural causes. The research concludes that the lack of definition of strategies, which could be capable of minimizing eventual risks of reservoir be collapsed, occurred due to the weak performance of the entities on exercising their functions in a coordinated, articulated and integrated way. The results show there is a trend of the problem be worsened.
DOI: 10.6084/m9.figshare.5670451
title: Recovery potencial of recyclables at a large residential condominium in São Caetano do Sul

description: ABSTRACT This paper aims at evaluating the potential recovery of recyclable materials at a large vertical residential condominium located in the municipality of São Caetano do Sul, state of São Paulo, Brazil. A survey on the waste management and the building facilities was conducted. Interviews with the governing board of the condominium and with the institute responsible for segregating recyclables were carried out, together with questionnaires applied to residents. The main challenge during this survey was the frequency and quality of internal communication for information and awareness, including both residents and respective domestic staff. As positive aspects, the convenience for disposal of recyclables by the residents; favorable conditions for the recyclables market, and presence of suitable location for storing segregated recyclables at the condominium were identified. It was found that the recovered materials were 13.7% of all recyclables present in domestic waste. This study showed that the selective collection of solid waste in residential condominiums is vulnerable owing to the lack of effective promoting and mobilization actions, as well lack of local administration decisions.
DOI: 10.6084/m9.figshare.5670016
title: Adsorption of Cd2+, Ni2+ and Zn2+ in aqueous solutions using anhydrite and red mud

description: ABSTRACT Various minerals and industrial waste have been studied for use as an adsorbent, in particular the anhydrite and the red mud. The red mud is an insoluble residue that is generated in large quantities during the processing of bauxite. The anhydrite is a calcium sulfate (CaSO4), crystallized as a rhombic way, and used as raw material in the industry. In this study, the Cd2+, Ni2+ and Zn2+adsorption capacity by anhydrite and by red mud was evaluated using adsorption isotherms obtained by the Langmuir and Freundlich models. The materials used showed adsorption ≥75±1% for all metals in aqueous solutions with a concentration of 0.5 mmol.25 mL-1. The Langmuir isotherm was more appropriate to describe the phenomenon of Cd2+, Ni2+ and Zn2+ removal, with highest adsorption capacity at 0.47 and 0.51 mmol.g-1 for Cd2+, 1.18 and 1.56 mmol.g-1 for Ni2+, and 0.84 and 1.47 mmol.g-1 for Zn2+, respectively. These values were higher than those ones obtained for other materials described in previous studies.
DOI: 10.6084/m9.figshare.5670451.v1
title: Recovery potencial of recyclables at a large residential condominium in São Caetano do Sul

description: ABSTRACT This paper aims at evaluating the potential recovery of recyclable materials at a large vertical residential condominium located in the municipality of São Caetano do Sul, state of São Paulo, Brazil. A survey on the waste management and the building facilities was conducted. Interviews with the governing board of the condominium and with the institute responsible for segregating recyclables were carried out, together with questionnaires applied to residents. The main challenge during this survey was the frequency and quality of internal communication for information and awareness, including both residents and respective domestic staff. As positive aspects, the convenience for disposal of recyclables by the residents; favorable conditions for the recyclables market, and presence of suitable location for storing segregated recyclables at the condominium were identified. It was found that the recovered materials were 13.7% of all recyclables present in domestic waste. This study showed that the selective collection of solid waste in residential condominiums is vulnerable owing to the lack of effective promoting and mobilization actions, as well lack of local administration decisions.
DOI: 10.6084/m9.figshare.5670214
title: Risk assessment of water allocation on water scarcity period: the case of Jaguaribe-Metropolitan System

description: ABSTRACT The article evaluates the transfer of risk of a water allocation policy between two user sectors: urban supply and irrigation. The allocation between uses was performed using two methods: linear apportionment and assessment with priorities (adopted in periods of water scarcity). The amount available for allocation was obtained using two reservoir operation strategies: zero inflow in the second half of the year and forecast flow. Gains and losses of the user sectors were determined through benefits functions. The two allocation scenarios pointed to lower guarantees and benefits for user sector with less priority. The priority system revealed that the water transfer infrastructures provide gains for the higher priority sector when guaranteeing water security; however, cause losses when extinguishes the right to use the demand of lower priority, indicating that the allocation of water is also a distribution process risk. The transfer risk of this sector, volumetric and monetary, can be minimized with the use of climate information. Thus, an alternative to the allocation of water in environments with water transfer systems would be an acceptable risk in order to increase the current level of benefits of irrigation and the satisfaction of the urban supply. This risk can be established based on seasonal climate prediction models.
DOI: 10.6084/m9.figshare.5670214.v1
title: Risk assessment of water allocation on water scarcity period: the case of Jaguaribe-Metropolitan System

description: ABSTRACT The article evaluates the transfer of risk of a water allocation policy between two user sectors: urban supply and irrigation. The allocation between uses was performed using two methods: linear apportionment and assessment with priorities (adopted in periods of water scarcity). The amount available for allocation was obtained using two reservoir operation strategies: zero inflow in the second half of the year and forecast flow. Gains and losses of the user sectors were determined through benefits functions. The two allocation scenarios pointed to lower guarantees and benefits for user sector with less priority. The priority system revealed that the water transfer infrastructures provide gains for the higher priority sector when guaranteeing water security; however, cause losses when extinguishes the right to use the demand of lower priority, indicating that the allocation of water is also a distribution process risk. The transfer risk of this sector, volumetric and monetary, can be minimized with the use of climate information. Thus, an alternative to the allocation of water in environments with water transfer systems would be an acceptable risk in order to increase the current level of benefits of irrigation and the satisfaction of the urban supply. This risk can be established based on seasonal climate prediction models.
DOI: 10.22008/fk2/oiajvo/yz3odi
title: al.tif

description: SICE version: Cloud removed, PPGC, SNAP7, pySICEv1.4
DOI: 10.6084/m9.figshare.5670016.v1
title: Adsorption of Cd2+, Ni2+ and Zn2+ in aqueous solutions using anhydrite and red mud

description: ABSTRACT Various minerals and industrial waste have been studied for use as an adsorbent, in particular the anhydrite and the red mud. The red mud is an insoluble residue that is generated in large quantities during the processing of bauxite. The anhydrite is a calcium sulfate (CaSO4), crystallized as a rhombic way, and used as raw material in the industry. In this study, the Cd2+, Ni2+ and Zn2+adsorption capacity by anhydrite and by red mud was evaluated using adsorption isotherms obtained by the Langmuir and Freundlich models. The materials used showed adsorption ≥75±1% for all metals in aqueous solutions with a concentration of 0.5 mmol.25 mL-1. The Langmuir isotherm was more appropriate to describe the phenomenon of Cd2+, Ni2+ and Zn2+ removal, with highest adsorption capacity at 0.47 and 0.51 mmol.g-1 for Cd2+, 1.18 and 1.56 mmol.g-1 for Ni2+, and 0.84 and 1.47 mmol.g-1 for Zn2+, respectively. These values were higher than those ones obtained for other materials described in previous studies.
DOI: 10.6084/m9.figshare.5669707
title: Descriptive statistics and stationarity in environmental geochemical variables

description: ABSTRACT The aim of this work was to analyze geochemical data in order to check their stationarity and to correlate the statistical normality using the ordinary kriging technique. The ordinary kriging technique was chosen as the geostatistical method applied to work because such technique is advised for studies in areas where there are data with variables that might present spatial dependence, like the geochemical variables, and also because it is indicated for data presenting stationarity. The methodology used for this research involved, besides literature review, data collection of trace metals (Cu, Zn, Mn, Fe, Cr and Pb) that were partially extracted from surface samples (0 to 10 cm) of soils and sediments collected in the field. We also determined the values of pH, salinity, total nitrogen, phosphorus, organic matter and particle size. Statistical analyzes, semivariogram development, ordinary kriging use and, lastly, cross validation were performed to measure the uncertainty of the previous measurement of data. It was found, in this work, by means of the variograms that although data were ordinary, they showed stationarity. In addition, the parameter of descriptive statistics that mostly correlates directly with the ordinary kriging is variance.
DOI: 10.6084/m9.figshare.5670058
title: Evaluation of hierarchy of cyanotoxin removal by adsorption onto granular activated carbon

description: ABSTRACT This study focused on the simultaneous removal of two cyanotoxins - microcystin-LR and saxitoxin-STX - by means of adsorption onto granular activated carbon. In first step, three carbons with different granulometry (dende coconut and mineral) were evaluated on adsorption of microcystin-LR in distilled and treated waters in concentrations at about 3.9 to 9.4 ug.L-1. The dende coconut carbon with lower granulometry showed higher performance according to the limits established by Brazilian Drinking Water Standards. In second step, with the selected carbon in previous step, concentrations of the two cyanotoxins 50% higher than those limits were dispersed in distilled water. The tests pointed out that only saxitoxin-STX removal was not affect by the presence both cyanotoxins.
DOI: 10.6084/m9.figshare.5670058.v1
title: Evaluation of hierarchy of cyanotoxin removal by adsorption onto granular activated carbon

description: ABSTRACT This study focused on the simultaneous removal of two cyanotoxins - microcystin-LR and saxitoxin-STX - by means of adsorption onto granular activated carbon. In first step, three carbons with different granulometry (dende coconut and mineral) were evaluated on adsorption of microcystin-LR in distilled and treated waters in concentrations at about 3.9 to 9.4 ug.L-1. The dende coconut carbon with lower granulometry showed higher performance according to the limits established by Brazilian Drinking Water Standards. In second step, with the selected carbon in previous step, concentrations of the two cyanotoxins 50% higher than those limits were dispersed in distilled water. The tests pointed out that only saxitoxin-STX removal was not affect by the presence both cyanotoxins.
DOI: 10.6084/m9.figshare.5669707.v1
title: Descriptive statistics and stationarity in environmental geochemical variables

description: ABSTRACT The aim of this work was to analyze geochemical data in order to check their stationarity and to correlate the statistical normality using the ordinary kriging technique. The ordinary kriging technique was chosen as the geostatistical method applied to work because such technique is advised for studies in areas where there are data with variables that might present spatial dependence, like the geochemical variables, and also because it is indicated for data presenting stationarity. The methodology used for this research involved, besides literature review, data collection of trace metals (Cu, Zn, Mn, Fe, Cr and Pb) that were partially extracted from surface samples (0 to 10 cm) of soils and sediments collected in the field. We also determined the values of pH, salinity, total nitrogen, phosphorus, organic matter and particle size. Statistical analyzes, semivariogram development, ordinary kriging use and, lastly, cross validation were performed to measure the uncertainty of the previous measurement of data. It was found, in this work, by means of the variograms that although data were ordinary, they showed stationarity. In addition, the parameter of descriptive statistics that mostly correlates directly with the ordinary kriging is variance.
DOI: 10.6084/m9.figshare.5670055
title: Sanitation and public health in the hydrographic basin of Reginaldo creek, Maceió, Alagoas

description: ABSTRACT Urban watersheds have a rather complex reality with regard to water quality, usually as a result from the lack of sanitation services, with direct consequence on the health of population. Reginaldo creek bay in Maceió, Alagoas, has great spatial variation in the patterns of basic sanitation providing and, thus, great variation in environmental health indicators which impact in the incidence of waterborne diseases. This study aims to correlate the occurrence and incidence of waterborne diseases with the Environmental Health Index (ISA). The ISA index used is based on the occurrence, magnitude and extent of flooding and on the quality and scope of the provision of water supply, sanitation services and solid waste collection. Results indicate a relationship between ISA and the incidence of specific diseases (related to a particular ISA component), but they also show that results are substantially affected by spatial resolution of data and the methodology for obtaining primary indicators. It was also observed that the method to obtain and classify spatial data is crucial to identify the relations between each sanitation component and the incidence of a specific disease, as well as their spatial extent. Within the area studied, most diagnosis are attributed to dengue, hepatitis and leptospirosis, especially dengue over the others. Results were mapped in the studied area by census tract.
DOI: 10.6084/m9.figshare.5670055.v1
title: Sanitation and public health in the hydrographic basin of Reginaldo creek, Maceió, Alagoas

description: ABSTRACT Urban watersheds have a rather complex reality with regard to water quality, usually as a result from the lack of sanitation services, with direct consequence on the health of population. Reginaldo creek bay in Maceió, Alagoas, has great spatial variation in the patterns of basic sanitation providing and, thus, great variation in environmental health indicators which impact in the incidence of waterborne diseases. This study aims to correlate the occurrence and incidence of waterborne diseases with the Environmental Health Index (ISA). The ISA index used is based on the occurrence, magnitude and extent of flooding and on the quality and scope of the provision of water supply, sanitation services and solid waste collection. Results indicate a relationship between ISA and the incidence of specific diseases (related to a particular ISA component), but they also show that results are substantially affected by spatial resolution of data and the methodology for obtaining primary indicators. It was also observed that the method to obtain and classify spatial data is crucial to identify the relations between each sanitation component and the incidence of a specific disease, as well as their spatial extent. Within the area studied, most diagnosis are attributed to dengue, hepatitis and leptospirosis, especially dengue over the others. Results were mapped in the studied area by census tract.
DOI: 10.6084/m9.figshare.5670295
title: Microbiological quality and environmental factors of estuarine area of Iguape Bay Marine Reserve (Bahia) for cultivation of native oysters

description: ABSTRACT: The objective was to verify the microbiological quality of water used in oyster cultivation in Iguape Bay, Bahia, and its correlation with environmental factors and tidal variations. Thirty six samples of surface water were collected from three oyster cultivation areas, totalizing 12 collections. The concentrations of total and thermotolerant coliforms were determined using the multiple tube test - Most Probable Number (MPN.100 mL-1). The environmental variables assessed in the water samples were: pH, temperature, salinity, turbidity, rainfall and tidal. Total coliforms and thermotolerant coliforms MPN values ranged from &lt;1.8 to 1,600 MPN.100 mL-1 and from &lt;1.8 to 350 MPN.100 mL-1, respectively. The oyster cultivation areas presented good microbiological quality of surface water. The influence of environmental factors on microbial density was obtained as a positive correlation with rainfall and negative correlation with temperature and turbidity. Considering the data from this study, there was an increase of the population of coliforms in the rainy season and spring tide. Thus, it is necessary to carry out microbiological and environmental monitoring of water intended for aquaculture because it promotes safe and sustainable production of oyster, since the quality parameters can suffer weather influences and seasonal variations.
DOI: 10.6084/m9.figshare.5669701
title: Interrelationships between the ozone and nitrogen dioxide concentrations in the region of Grande Vitória, Espírito Santo, Brazil

description: ABSTRACT The objective of this paper was to determine the interrelationships between the ozone (O3) and nitrogen dioxide (NO2) concentrations, in the Grande Vitória Region (RGV), Espírito Santo, Brazil, using the methodology VAR and the Granger causality test. The VAR model captures the linear interdependencies between multiple time series. In this context, each variable has an estimated equation that represents its evolution in terms of its own lags and the lags of other variables. Granger causality test is based on a system of bivariate equations to check whether a variable is able to forecast the other. The results showed that the O3 and NO2 concentrations at Laranjeiras station were less affected by concentrations of other stations. The concentrations of Enseada do Suá were significantly affected by other regions, especially Jardim Camburi, IBES and Vitória - Centro. The Ibes ozone concentrations were strongly influenced by the O3 and NO2 concentrations from Enseada do Suá. Furthermore, the O3 and NO2 concentrations of Cariacica had significant impacts of concentrations of the Enseada do Suá, probably due to the prevailing North/Northeast wind direction in the RGV.