cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.8227544
title: Flow distribution and trends in the Das Velhas River Basin

description: Abstract In the management of water resources, it is necessary to balance the demands of multiple uses of water and water availability, while enabling use in an environmentally sustainable way. Probability distributions of flow rates are essential tools for assessing water availability. The objectives of this work were to analyze the best probability distribution that conforms to the annual minimum daily average discharge for periods of seven consecutive days (Q7) for 14 stream gauging stations in the Das Velhas River Basin and to identify possible trends in Q7 time series and in bi monthly and annual sets of daily discharges in three key stream gauging stations. The quality of fit was verified by the Anderson-Darling test (A-D). The selection of the models that presented the best fit was done according to the Bayesian Information Criterion (BIC). The Mann-Kendall test was used to verify trends in time series of discharge. In general, better measures of quality of fit were obtained for the probability distributions Gumbel and Rayleigh. Negative trends in discharge distributions were verified in the three stations. For the Várzea da Palma station, the closest to the river mouth, negative and significant trends were found for the Q7 data and daily average discharge for every bimester except the first.
DOI: 10.6084/m9.figshare.8227532.v1
title: Modeling and hydraulic performance evaluation of a dripper device coupled to a branched water distribution network

description: Abstract Irrigation is responsible for approximately 70% of the world’s freshwater consumption and is one of the key factors behind the growing global water scarcity. Irrigation systems and techniques are extremely differentiated and complex. In this context, tools of computational fluid dynamics (CFD) earn relevance, allowing a detailed analysis and forecast of hydraulic behavior in different situations. In order to evaluate flow details in a dripper, this study applies CFD tools to study a drip irrigation system from three different perspectives: (i) analysis of the complete system of piping and dripper; (ii) analysis of only the isolated dripper expanded and biphasic model; and (iii) analysis of the isolated dripper operating in transient regime. Modeling results allowed a full understanding about speed fields, pressure and friction loss along the geometry. The drop formation process in the dripper output could be displayed in detail, and the obtained dripper flow output was close to the nominal value of manufacturer, in the case of the isolated dripper analysis. Although a comparison with results from experiments was not possible at the time, based on manufacturers’ catalogs, results proved satisfactory, leading to successful simulations.
DOI: 10.6084/m9.figshare.7516427
title: Measurements for Accentedness, Pause and Nuclear Stress Placement in the EFL Context

description: Abstract: This study reports on an experimental research conducted with 50 Spanish-L1 college students, divided into 2 groups (A and B). They were presented with a teacher-centered approach based on controlled exercises, but group B received an awareness-building component in which students completed a sequence of tasks with a focus on phonological form. Both groups recorded a speaking test before and after instruction which was used to measure and compare degrees of accentedness, frequency and duration of pauses and nuclear stress placement. Different groups of raters listened and judged the speech samples. Multivariate analysis showed that group B obtained better results in all 3 parameters than the other group. Finally, some pedagogical implications for the teaching of L2 pronunciation in ELT contexts will be discussed.
DOI: 10.6084/m9.figshare.8227517
title: Physicochemical, microbiological and parasitological characterization of the filter backwash water from a water treatment plant of Blumenau - SC and alternatives for treatment and reuse

description: Abstract Filter Backwash Water (FBW) from water treatment plants (WTP) is composed of raw water waste, chemicals and microorganisms. Inappropriate disposal of this residue impacts negatively in the environment and in the health of human populations. Aiming to characterize the FBW from one WTP of Blumenau-SC, physiochemical, microbiological and parasitological assessments and tests with different flocculants polymers were performed in order to propose strategies for treatment and reuse of this residue. Subsequently treated liquid is discharged into the Itajaí-Açu River (Class 2). Physicochemical and microbiological analyses showed results higher than those permitted by CONAMA Resolution n° 430/2011 and Giardia duodenalis (Assembly B) cysts and Cryptosporidium spp. oocyst positivity was observed, characterizing as polluted and contaminated residue that shouldn't be released in the hydric body. The anionic flocculant polymer showed satisfactory results in the turbidity sample reduction (99.49%), which may be a promising alternative in the treatment of this residue.
DOI: 10.6084/m9.figshare.8227541.v1
title: Heavy metals in the São Mateus Stream Basin, Peixe River Basin, Paraiba do Sul River Basin, Brazil

description: Abstract Large-scale enterprises with high potential to pollute need to be licensed, properly supervised and monitored during and after their operations to avoid and/or mitigate impacts in their areas of influence. The São Mateus Stream Basin (SMSB), located in rural area of Juiz de Fora (MG), is impacted by several activities, highlighting a deactivated landfill and an industrial park. This study monitored the concentration of heavy metals in the waters of the main tributaries of the SMSB. Strategic points were selected in each sub-basin, before the mouth and meeting of the Bocaina, Salvaterra and São Mateus Streams, measured monthly between January and December 2014 using the Metalyser probe, and applying the Contamination Index (CI). The CI results showed that the enterprises located in this basin, especially the Park Sul and Salvaterra Landfill in the Bocaina and Salvaterra Streams, respectively, are negatively impacting the quality of these waters. Metals such as Hg, Cu, Pb and Zn were the ones that most violated CONAMA Resolution 357/2005, directing management in order to control the sources of these metals, which are cumulative in organisms and damage the whole trophic chain. The inhabitants of this rural area are not served by any water concessionaire and make use of springs and wells below the level of these streams.
DOI: 10.6084/m9.figshare.7508075.v1
title: Petrogenesis and U-Pb and Sm-Nd geochronology of the Taquaral granite: record of an orosirian continental magmatic arc in the region of Corumba - MS

description: The Taquaral Granite is located on southern Amazon Craton in the region of Corumbá, westernmost part of the Brazilian state of Mato Grosso do Sul (MS), near Brazil-Bolivia frontier. This intrusion of batholitic dimensions is partially covered by sedimentary rocks of the Urucum, Tamengo Bocaina and Pantanal formations and Alluvial Deposits. The rock types are classified as quartz-monzodiorites, granodiorites, quartz-monzonites, monzo and syenogranites. There are two groups of enclaves genetically and compositionally different: one corresponds to mafic xenoliths and the second is identified as felsic microgranular enclave. Two deformation phases are observed: one ductile (F1) and the other brittle (F2). Geochemical data indicate intermediate to acidic composition for these rocks and a medium to high-K, metaluminous to peraluminous calk-alkaline magmatism, suggesting also their emplacement into magmatic arc settings. SHRIMP zircon U-Pb geochronological data of these granites reveals a crystallization age of 1861 ± 5.3 Ma. Whole rock Sm-Nd analyses provided εNd(1,86 Ga) values of -1.48 and -1.28 and TDM model ages of 2.32 and 2.25 Ga, likely indicating a Ryacian crustal source. Here we conclude that Taquaral Granite represents a magmatic episode generated at the end of the Orosirian, as a part of the Amoguija Magmatic Arc.
DOI: 10.6084/m9.figshare.8227541
title: Heavy metals in the São Mateus Stream Basin, Peixe River Basin, Paraiba do Sul River Basin, Brazil

description: Abstract Large-scale enterprises with high potential to pollute need to be licensed, properly supervised and monitored during and after their operations to avoid and/or mitigate impacts in their areas of influence. The São Mateus Stream Basin (SMSB), located in rural area of Juiz de Fora (MG), is impacted by several activities, highlighting a deactivated landfill and an industrial park. This study monitored the concentration of heavy metals in the waters of the main tributaries of the SMSB. Strategic points were selected in each sub-basin, before the mouth and meeting of the Bocaina, Salvaterra and São Mateus Streams, measured monthly between January and December 2014 using the Metalyser probe, and applying the Contamination Index (CI). The CI results showed that the enterprises located in this basin, especially the Park Sul and Salvaterra Landfill in the Bocaina and Salvaterra Streams, respectively, are negatively impacting the quality of these waters. Metals such as Hg, Cu, Pb and Zn were the ones that most violated CONAMA Resolution 357/2005, directing management in order to control the sources of these metals, which are cumulative in organisms and damage the whole trophic chain. The inhabitants of this rural area are not served by any water concessionaire and make use of springs and wells below the level of these streams.
DOI: 10.6084/m9.figshare.7516427.v1
title: Measurements for Accentedness, Pause and Nuclear Stress Placement in the EFL Context

description: Abstract: This study reports on an experimental research conducted with 50 Spanish-L1 college students, divided into 2 groups (A and B). They were presented with a teacher-centered approach based on controlled exercises, but group B received an awareness-building component in which students completed a sequence of tasks with a focus on phonological form. Both groups recorded a speaking test before and after instruction which was used to measure and compare degrees of accentedness, frequency and duration of pauses and nuclear stress placement. Different groups of raters listened and judged the speech samples. Multivariate analysis showed that group B obtained better results in all 3 parameters than the other group. Finally, some pedagogical implications for the teaching of L2 pronunciation in ELT contexts will be discussed.
DOI: 10.6084/m9.figshare.8227535.v1
title: CaTiO3 Perovskite in the Photocatalysis of Textile Wastewater

description: Abstract Perovskite-type CaTiO3 material was synthesized by the polymeric precursor method and characterized. The powder was applied as a promising alternative to TiO2 photocatalyst. Photocatalytic reaction parameters were optimized by surface analysis methodology on the degradation of methylene blue under UV radiation. After optimization, complex textile- and tannery wastewaters were treated and the COD reduction was evaluated. At optimized conditions (pH=11.2 and 1 g L-1 of catalyst concentration), the results obtained for the photodegradation of the real wastewater after 240 min of irradiation were 45% COD reduction for both effluents. The reactions were adjusted to the pseudo first order kinetic and the rate constants were 2.07 x 10-3 (min-1) and 2.23 x 10- 3 (min-1) for COD reduction for textile- and tannery wastewaters, respectively.
DOI: 10.6084/m9.figshare.9739331
title: Polymorphisms of the renin-angiotensin system are not associated with overweight and obesity in a general adult population

description: ABSTRACT Objective The increased prevalence of obesity and associated comorbidities, such as cardiovascular and metabolic diseases, has gained attention worldwide, and the renin-angiotensin system (RAS) has been pointed out as a possible link. Thus, the present study aimed to verify the possible association between angiotensinogen (AGT) or angiotensin-converting enzyme (ACE) polymorphisms with overweight and obesity in adults. Subjects and methods The present investigation was a population-based cross-sectional study including 1,567 individuals from an urban area in Brazil. Anthropometric, clinical and biochemical parameters were evaluated, and all individuals were genotyped for the ACE I/D and AGT M/T polymorphisms. Results The prevalence of overweight was higher among men, whereas obesity was more prevalent among women. However, the frequency of ACE or AGT polymorphisms was similar among body mass index (BMI) categories. In addition, the mean age-adjusted BMI averages did not change significantly for ACE or AGT polymorphisms, regardless of sex or BMI category. The age-adjusted BMI average for the combination of ACE and AGT genotypes evidenced no significant differences regardless of sex or BMI categories. Results were similar when BMI was replaced by waist circumference (WC). Conclusions We were not able to find any associations between BMI and WC (overweight/obesity) and ACE and AGT polymorphisms, indicating that the RAS system might not be involved in overweight and obesity, at least based on genetic backgrounds. However, further studies must measure RAS components to elucidate this question.
DOI: 10.6084/m9.figshare.9739331.v1
title: Polymorphisms of the renin-angiotensin system are not associated with overweight and obesity in a general adult population

description: ABSTRACT Objective The increased prevalence of obesity and associated comorbidities, such as cardiovascular and metabolic diseases, has gained attention worldwide, and the renin-angiotensin system (RAS) has been pointed out as a possible link. Thus, the present study aimed to verify the possible association between angiotensinogen (AGT) or angiotensin-converting enzyme (ACE) polymorphisms with overweight and obesity in adults. Subjects and methods The present investigation was a population-based cross-sectional study including 1,567 individuals from an urban area in Brazil. Anthropometric, clinical and biochemical parameters were evaluated, and all individuals were genotyped for the ACE I/D and AGT M/T polymorphisms. Results The prevalence of overweight was higher among men, whereas obesity was more prevalent among women. However, the frequency of ACE or AGT polymorphisms was similar among body mass index (BMI) categories. In addition, the mean age-adjusted BMI averages did not change significantly for ACE or AGT polymorphisms, regardless of sex or BMI category. The age-adjusted BMI average for the combination of ACE and AGT genotypes evidenced no significant differences regardless of sex or BMI categories. Results were similar when BMI was replaced by waist circumference (WC). Conclusions We were not able to find any associations between BMI and WC (overweight/obesity) and ACE and AGT polymorphisms, indicating that the RAS system might not be involved in overweight and obesity, at least based on genetic backgrounds. However, further studies must measure RAS components to elucidate this question.
DOI: 10.6084/m9.figshare.6967586.v1
title: The collet-sicard syndrome and dentistry: case report

description: ABSTRACT The Vernet, Collet-Sicard and Villaret Syndromes are uncommon; they affect the spaces through which some of the cranial nerves pass and can lead to the impairment of motor functions of the tongue. The etiology is variable, including benign or malignant tumors, metastasis, infections, or Idiopathic causes. Patients with the disease may report changes in the mobility and function of the tongue, dysphonia, dysarthria and dysphagia. The purpose of this article was present a case report of Collet-Sicard syndrome, and to highlight the importance of proper diagnosis by dentists. Appropriate treatment must be instituted as soon as possible and the patient should be treated by a multidisciplinary team until the complete remission of symptoms.
DOI: 10.6084/m9.figshare.7517198.v1
title: Survival and Fructification of Bertholletia excelsa Bonpl. in Deforested Areas, Oriximiná, Pará

description: ABSTRACT This study assessed biological conditions (survival, produtivity, regrowth) and structure of populations of Brazil nut tree (Bertholletia excelsa Bonpl.) in the proximity to the deforested roadside (Oriximiná, Pará) We studied 441 trees (Diameter at Breast Height – DBH &gt; 10 cm), and collected geographic coordinates, dendrometric data, record of reproductive and biological status and evidence of disturbance and regrowth; 75% of the nut trees was dead. The population structure of survivors Brazil nut tree is aged (DBH average, 159 ± 0.55 cm), with low presence of young tree (DBH &lt; 40 cm, 4.6%). Little over half of the surviving adult nut trees (DBH &gt; 40 cm) showed evidence of fruiting; with an area of crown significantly higher than the non-productive trees. It is recommended the adoption of urgent measures for conservation and reforestation of the population of Brazil nut trees in the study area in accordance with the current environmental law.
DOI: 10.6084/m9.figshare.8227535
title: CaTiO3 Perovskite in the Photocatalysis of Textile Wastewater

description: Abstract Perovskite-type CaTiO3 material was synthesized by the polymeric precursor method and characterized. The powder was applied as a promising alternative to TiO2 photocatalyst. Photocatalytic reaction parameters were optimized by surface analysis methodology on the degradation of methylene blue under UV radiation. After optimization, complex textile- and tannery wastewaters were treated and the COD reduction was evaluated. At optimized conditions (pH=11.2 and 1 g L-1 of catalyst concentration), the results obtained for the photodegradation of the real wastewater after 240 min of irradiation were 45% COD reduction for both effluents. The reactions were adjusted to the pseudo first order kinetic and the rate constants were 2.07 x 10-3 (min-1) and 2.23 x 10- 3 (min-1) for COD reduction for textile- and tannery wastewaters, respectively.
DOI: 10.6084/m9.figshare.7517198
title: Survival and Fructification of Bertholletia excelsa Bonpl. in Deforested Areas, Oriximiná, Pará

description: ABSTRACT This study assessed biological conditions (survival, produtivity, regrowth) and structure of populations of Brazil nut tree (Bertholletia excelsa Bonpl.) in the proximity to the deforested roadside (Oriximiná, Pará) We studied 441 trees (Diameter at Breast Height – DBH &gt; 10 cm), and collected geographic coordinates, dendrometric data, record of reproductive and biological status and evidence of disturbance and regrowth; 75% of the nut trees was dead. The population structure of survivors Brazil nut tree is aged (DBH average, 159 ± 0.55 cm), with low presence of young tree (DBH &lt; 40 cm, 4.6%). Little over half of the surviving adult nut trees (DBH &gt; 40 cm) showed evidence of fruiting; with an area of crown significantly higher than the non-productive trees. It is recommended the adoption of urgent measures for conservation and reforestation of the population of Brazil nut trees in the study area in accordance with the current environmental law.
DOI: 10.6084/m9.figshare.7516160.v1
title: QUALITY OF MINIMALLY PROCESSED YAM (Dioscorea sp.) STORED AT TWO DIFFERENT TEMPERATURES

description: ABSTRACT: This work studied the physical, chemical and biochemical alterations in minimally processed yam stored at two different temperatures, as well as the incidence of bacteria of the genus Pseudomonas. The experimental design was completely randomised in a 2x8 factorial design, with two storage temperatures (5 and 10°C) and eight storage times (0, 2, 4, 6, 8, 10, 12 and 14 days). Experiments were in triplicate. Yam was selected, peeled and cut into slices of approximately 3 cm thickness. The slices were rinsed with water, sanitised and then drained in kitchen strainers. Approximately 300 g of the processed product were packed in nylon multilayers 15 µm thick, 15 cm wide and 20 cm long. The packs were sealed, weighed and kept at 5 and 10 ± 2°C for 14 days. Fresh weight loss, baking time, enzymatic activity of polyphenol oxidases, peroxidases and catalases, total soluble phenol content, and antioxidant capacity were evaluated, as well as visual analysis and incidence of Pseudomonas sp. Means of temperatures were compared by Tukey´s test at 5% significance. Yam storage at 5°C reduced weight loss and kept visual quality for longer; it also reduced cooking time and the activity of the enzymes polyphenol oxidase and peroxidase. In contrast, it promoted higher content of total soluble phenols, as well as a higher catalase activity and antioxidant capacity. During the storage time, there was no incidence of Pseudomonas sp. Minimally processed yam stored at 10°C may be sold for up to six days, and yam stored at 5ºC for up to 14 days.
DOI: 10.6084/m9.figshare.6967586
title: The collet-sicard syndrome and dentistry: case report

description: ABSTRACT The Vernet, Collet-Sicard and Villaret Syndromes are uncommon; they affect the spaces through which some of the cranial nerves pass and can lead to the impairment of motor functions of the tongue. The etiology is variable, including benign or malignant tumors, metastasis, infections, or Idiopathic causes. Patients with the disease may report changes in the mobility and function of the tongue, dysphonia, dysarthria and dysphagia. The purpose of this article was present a case report of Collet-Sicard syndrome, and to highlight the importance of proper diagnosis by dentists. Appropriate treatment must be instituted as soon as possible and the patient should be treated by a multidisciplinary team until the complete remission of symptoms.
DOI: 10.6084/m9.figshare.7516160
title: QUALITY OF MINIMALLY PROCESSED YAM (Dioscorea sp.) STORED AT TWO DIFFERENT TEMPERATURES

description: ABSTRACT: This work studied the physical, chemical and biochemical alterations in minimally processed yam stored at two different temperatures, as well as the incidence of bacteria of the genus Pseudomonas. The experimental design was completely randomised in a 2x8 factorial design, with two storage temperatures (5 and 10°C) and eight storage times (0, 2, 4, 6, 8, 10, 12 and 14 days). Experiments were in triplicate. Yam was selected, peeled and cut into slices of approximately 3 cm thickness. The slices were rinsed with water, sanitised and then drained in kitchen strainers. Approximately 300 g of the processed product were packed in nylon multilayers 15 µm thick, 15 cm wide and 20 cm long. The packs were sealed, weighed and kept at 5 and 10 ± 2°C for 14 days. Fresh weight loss, baking time, enzymatic activity of polyphenol oxidases, peroxidases and catalases, total soluble phenol content, and antioxidant capacity were evaluated, as well as visual analysis and incidence of Pseudomonas sp. Means of temperatures were compared by Tukey´s test at 5% significance. Yam storage at 5°C reduced weight loss and kept visual quality for longer; it also reduced cooking time and the activity of the enzymes polyphenol oxidase and peroxidase. In contrast, it promoted higher content of total soluble phenols, as well as a higher catalase activity and antioxidant capacity. During the storage time, there was no incidence of Pseudomonas sp. Minimally processed yam stored at 10°C may be sold for up to six days, and yam stored at 5ºC for up to 14 days.