cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7243811
title: Microbiological and physicochemical characterization of the pollen stored by stingless bees

description: Abstract The present study aimed at checking the microbiological condition and physicochemical differences of the pollen stored by different stingless bee species in the north east of Brazil. The stored pollen was collected from apiaries of colonies of the species Melipona subnitida, M.scutellaris, M. mandacaia, Scaptotrigona sp. and Frieseomellita varia. The microbiological quality was analysed for the main microbial indicators of commercial quality (mesophiles, moulds, and yeasts), sanitary quality (coagulase positive Staphylococcus, faecal coliforms and Escherichia coli ) and safety (sulphite-reducing Clostridium spores and Salmonella ). The physicochemical parameters evaluated were those required by the Brazilian Technical Regulation for Bee Pollen Quality, as well as the phenolic compounds. The microbiological condition of all the samples was within the recommended levels for human consumption. The results confirmed differences in the physicochemical compositions of the pollens stored by the five species studied, forming three groups according to the physicochemical parameters. The samples of the species M. Scutellaris showed five times more phenolic compounds than the pollens of the other species assessed. The present study allowed for knowledge of the composition of the pollens stored by stingless bees, reinforcing the need for reformulation of the current Technical Regulation for Bee Pollen in order to include the pollen stored by native species.
DOI: 10.6084/m9.figshare.7243817.v1
title: Hardening phenomenon of Portland cement suspensions monitored by Vicat test, isothermal calorimetry and oscillatory rheometry

description: Abstract This work was conducted to evaluate the hardening phenomenon of pastes formulated with Portland cements blended with limestone filler (CPIIF), ground blast furnace slag (CPIIE) or pozzolan (CPIIZ). Vicat test, isothermal conduction calorimetry and oscillatory rheometry were the methods used to monitor this transition. The results of Vicat test indicates the faster setting time of pozzolan cement, but no information before this time was obtained. Using isothermal calorimetry was possible to monitor the related changes to the chemical reactions since the first contact with water, and using rheometry, the rate and force of cement particles agglomeration. The main purpose of this work was not extensively explain the results of these three methods, but show that they are complementary to better explain the transition from fluid-to-solid behavior in function of different kind of mineral addition.
DOI: 10.7284/135878
title: Radiometer data collected during research cruise SKQ201918S using a Biospherical QSR-2150 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243811.v1
title: Microbiological and physicochemical characterization of the pollen stored by stingless bees

description: Abstract The present study aimed at checking the microbiological condition and physicochemical differences of the pollen stored by different stingless bee species in the north east of Brazil. The stored pollen was collected from apiaries of colonies of the species Melipona subnitida, M.scutellaris, M. mandacaia, Scaptotrigona sp. and Frieseomellita varia. The microbiological quality was analysed for the main microbial indicators of commercial quality (mesophiles, moulds, and yeasts), sanitary quality (coagulase positive Staphylococcus, faecal coliforms and Escherichia coli ) and safety (sulphite-reducing Clostridium spores and Salmonella ). The physicochemical parameters evaluated were those required by the Brazilian Technical Regulation for Bee Pollen Quality, as well as the phenolic compounds. The microbiological condition of all the samples was within the recommended levels for human consumption. The results confirmed differences in the physicochemical compositions of the pollens stored by the five species studied, forming three groups according to the physicochemical parameters. The samples of the species M. Scutellaris showed five times more phenolic compounds than the pollens of the other species assessed. The present study allowed for knowledge of the composition of the pollens stored by stingless bees, reinforcing the need for reformulation of the current Technical Regulation for Bee Pollen in order to include the pollen stored by native species.
DOI: 10.7284/135879
title: Singlebeam Echosounder data collected during research cruise SKQ201918S using a Kongsberg TOPAS PS-18 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243805
title: Basal cortisol levels and the relationship with clinical symptoms in multiple sclerosis: a systematic review

description: ABSTRACT Multiple sclerosis (MS) is a demyelinating, progressive and neurodegenerative disease. A disturbance on the hypothalamic-pituitary-adrenal axis can be observed in patients with MS, showing altered cortisol levels. We aimed to identify basal cortisol levels and verify the relationship with clinical symptoms in patients with MS. A systematic search was conducted in the databases: Pubmed, Web of Science and SCOPUS. Both higher and lower cortisol levels were associated with MS. Higher cortisol levels were associated with depression and anxiety, while lower levels were associated with depression, fatigue and urinary dysfunction. Higher cortisol levels may be associated with the progression and severity of MS.
DOI: 10.6084/m9.figshare.7243808
title: IDENTIFICATION OF ADULTERATION IN OLIVE OIL: PROBLEMATIZING THE INTRODUCTION TO MASS SPECTROMETRY

description: This work propose the development of an experiment that may be used for the teaching of chemistry for undergraduate students in general, using the analysis of olive oil and soybean oil toward the direct injection electrospray ionization Mass Spectrometry - DI-MS/MS with 18-crown-6 as organic modifier. Firstly, olive oil was analyzed from two different brands, one of reputed brand and the other of popular brand and lower price. Soybean oil of popular brand was also analyzed in order to search possible similarities in the components of these oils and to search adulterations of olive oil with soybean oil. The mass spectra were obtained in positive ion mode of analysis, and allowed us to observe characteristic ions of soybean oil, olive oil, and identify the adulterated olive oil. This simple experiment of easy development may be applied in any institution which has a mass spectrometer with electrospray ionization. In addition, with the use of the experiment, the teacher can illustrate general chemistry concepts such as: molecular mass, preparation of solutions, oxidation, and acid-base reactions.
DOI: 10.6084/m9.figshare.7243805.v1
title: Basal cortisol levels and the relationship with clinical symptoms in multiple sclerosis: a systematic review

description: ABSTRACT Multiple sclerosis (MS) is a demyelinating, progressive and neurodegenerative disease. A disturbance on the hypothalamic-pituitary-adrenal axis can be observed in patients with MS, showing altered cortisol levels. We aimed to identify basal cortisol levels and verify the relationship with clinical symptoms in patients with MS. A systematic search was conducted in the databases: Pubmed, Web of Science and SCOPUS. Both higher and lower cortisol levels were associated with MS. Higher cortisol levels were associated with depression and anxiety, while lower levels were associated with depression, fatigue and urinary dysfunction. Higher cortisol levels may be associated with the progression and severity of MS.
DOI: 10.6084/m9.figshare.7243808.v1
title: IDENTIFICATION OF ADULTERATION IN OLIVE OIL: PROBLEMATIZING THE INTRODUCTION TO MASS SPECTROMETRY

description: This work propose the development of an experiment that may be used for the teaching of chemistry for undergraduate students in general, using the analysis of olive oil and soybean oil toward the direct injection electrospray ionization Mass Spectrometry - DI-MS/MS with 18-crown-6 as organic modifier. Firstly, olive oil was analyzed from two different brands, one of reputed brand and the other of popular brand and lower price. Soybean oil of popular brand was also analyzed in order to search possible similarities in the components of these oils and to search adulterations of olive oil with soybean oil. The mass spectra were obtained in positive ion mode of analysis, and allowed us to observe characteristic ions of soybean oil, olive oil, and identify the adulterated olive oil. This simple experiment of easy development may be applied in any institution which has a mass spectrometer with electrospray ionization. In addition, with the use of the experiment, the teacher can illustrate general chemistry concepts such as: molecular mass, preparation of solutions, oxidation, and acid-base reactions.
DOI: 10.6084/m9.figshare.7243802
title: Adsorption of congo red dye from aqueous solution onto amino-functionalized silica gel

description: ABSTRACT This study investigates the potential use of amino-functionalized silica gel as an adsorbent for the recovering of congo red dye from aqueous solution. The effects of pH, contact time, and temperature were determined and evaluated. Equilibrium isotherms were also studied. The adsorption kinetics was modeled by pseudo-first order and pseudo-second order. Furthermore, desorption of congo red was preliminarily studied. The pH range from 4.5 to 7.0 was favorable for the adsorption of congo red onto amine modified silica at 25ºC. Higher adsorption capacity was obtained at 50ºC. Langmuir and Freundlich models were fitted to the adsorption equilibrium data. The best fittings were obtained with the pseudo-second order and Langmuir model for kinetics and equilibrium, respectively. Desorption studies suggest that ion exchange might be the major mode of adsorption. KOH solution was the best desorbing agent for recovering the adsorbed dye.
DOI: 10.7284/135880
title: Singlebeam Echosounder data collected during research cruise SKQ201918S using a L-3 ELAC LAZ 5100 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243799
title: SECONDARY EDUCATION’S BNCC REFORM: THE REVIVAL OF A DUSTY DISCOURSE

description: ABSTRACT: In this paper we are concerned with the secondary education reform, highlighting the production of the National Curricular Common Base (BNCC). The goal is to show that, behind a discourse presented as “new’, the reform and its BNCC constitute an old discourse and reiterate purposes suffocated by disputes around the meanings and ends that concern this stage of basic education in the last 20 years. Among the conclusions, it is evident that the centrality conferred to the notion of competences in the document brings back the discourse present in curricular policy texts of the late 90’s and reintroduces limits already identified in previous research, among which the fact that such an approach is limited due to its pragmatic and ahistorical character.
DOI: 10.6084/m9.figshare.7243802.v1
title: Adsorption of congo red dye from aqueous solution onto amino-functionalized silica gel

description: ABSTRACT This study investigates the potential use of amino-functionalized silica gel as an adsorbent for the recovering of congo red dye from aqueous solution. The effects of pH, contact time, and temperature were determined and evaluated. Equilibrium isotherms were also studied. The adsorption kinetics was modeled by pseudo-first order and pseudo-second order. Furthermore, desorption of congo red was preliminarily studied. The pH range from 4.5 to 7.0 was favorable for the adsorption of congo red onto amine modified silica at 25ºC. Higher adsorption capacity was obtained at 50ºC. Langmuir and Freundlich models were fitted to the adsorption equilibrium data. The best fittings were obtained with the pseudo-second order and Langmuir model for kinetics and equilibrium, respectively. Desorption studies suggest that ion exchange might be the major mode of adsorption. KOH solution was the best desorbing agent for recovering the adsorbed dye.
DOI: 10.6084/m9.figshare.7243796
title: Occasional soil tillage, liming, and nitrogen fertilization on long-term no-tillage system

description: Abstract: The objective of this work was to evaluate the residual effects of occasional soil tillage in a 17-year-old, no-tillage system, associated with liming and nitrogen fertilization, on the crop yields and chemical properties of a very clayey Oxisol in the South of Brazil. A randomized complete block design in split-split plots was used, with two soil managements (with or without plowing), two liming treatments (with or without the required dose to raise base saturation to 70%), five N doses applied on side-dress (0, 1, 2, 4, and 6 times the recommended amounts), and four replicates. A rotation system was used with corn and soybean in the summer, and with wheat and black oats in the winter. The residual effects of occasional soil tillage in a consolidated no-tillage system do not supplant those of liming applied on soil surface, in periods of water deficit, which subsidizes the recommendation to maintain the system consolidated. Excess N fertilization in no-tillage, with liming applied only on soil surface, may harm wheat yield, acidifying the topsoil and leaching Mg2+ to the subsurface soil layers. Without liming, soil acidification is more intense with N fertilization, which, however, favors the accumulation of organic matter on soil surface in a consolidated no-tillage system.
DOI: 10.6084/m9.figshare.7243799.v1
title: SECONDARY EDUCATION’S BNCC REFORM: THE REVIVAL OF A DUSTY DISCOURSE

description: ABSTRACT: In this paper we are concerned with the secondary education reform, highlighting the production of the National Curricular Common Base (BNCC). The goal is to show that, behind a discourse presented as “new’, the reform and its BNCC constitute an old discourse and reiterate purposes suffocated by disputes around the meanings and ends that concern this stage of basic education in the last 20 years. Among the conclusions, it is evident that the centrality conferred to the notion of competences in the document brings back the discourse present in curricular policy texts of the late 90’s and reintroduces limits already identified in previous research, among which the fact that such an approach is limited due to its pragmatic and ahistorical character.
DOI: 10.7284/135884
title: Water Temperature data collected during research cruise SKQ201918S using a HEITRONICS CT15.10 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243796.v1
title: Occasional soil tillage, liming, and nitrogen fertilization on long-term no-tillage system

description: Abstract: The objective of this work was to evaluate the residual effects of occasional soil tillage in a 17-year-old, no-tillage system, associated with liming and nitrogen fertilization, on the crop yields and chemical properties of a very clayey Oxisol in the South of Brazil. A randomized complete block design in split-split plots was used, with two soil managements (with or without plowing), two liming treatments (with or without the required dose to raise base saturation to 70%), five N doses applied on side-dress (0, 1, 2, 4, and 6 times the recommended amounts), and four replicates. A rotation system was used with corn and soybean in the summer, and with wheat and black oats in the winter. The residual effects of occasional soil tillage in a consolidated no-tillage system do not supplant those of liming applied on soil surface, in periods of water deficit, which subsidizes the recommendation to maintain the system consolidated. Excess N fertilization in no-tillage, with liming applied only on soil surface, may harm wheat yield, acidifying the topsoil and leaching Mg2+ to the subsurface soil layers. Without liming, soil acidification is more intense with N fertilization, which, however, favors the accumulation of organic matter on soil surface in a consolidated no-tillage system.
DOI: 10.6084/m9.figshare.7243790
title: Survival evaluation of bacterial indicators and viruses during thermal drying of sewage sludge in a greenhouse

description: ABSTRACT The aim of the study was to evaluate the thermic drying of sewage sludge in agricultural greenhouse, in order to inactivate bacterial and virus, and to evaluate the behavior of somatic coliphages as indicator of these organisms. Each volume of excess sewage sludge discarded from UASB reactor, drained in a drying bed for 14 days and directed to thermic drying treatment in greenhouse corresponded to a batch (B) of sludge. Between February and November 2015, nine batches (L1 to L9) were treated for an average of 13 weeks. Most batches kept the pH between 5.0-6.0. After about 60 days of treatment, all batches showed humidity below 10%, except B3 and B4 (10-25%). The time required to reach 90% of total solids ranged between 40-50 (B1 to B7), 60 (B5, B6) and 85-100 (B2, B3 and B4) days. On average, levels of E. coli reduced to &lt;1x103 NMP/g TS after 50-60 days of treatment. The detection of somatic coliphages was low and eventual. Tests of inoculation showed rapid decay of virus (Sabin 1 strain poliovirus), but somatic coliphage Phi X174 was more persistent in the three temperatures evaluated (greenhouse, laboratory controlled 30 and 60°C). The thermic drying treatment of sewage sludge in agricultural greenhouse was presented as simple and efficient in obtaining granulated and dried product, and in reducing bacterial contamination levels given the parameter set as safe for agricultural use under the Brazilian law.
DOI: 10.6084/m9.figshare.7243793
title: NEONATAL PEMPHIGUS IN AN INFANT BORN TO A MOTHER WITH PEMPHIGUS VULGARIS: A CASE REPORT

description: ABSTRACT Objective: To report on the case of a patient with neonatal pemphigus that had extensive and critical skin lesions at birth. Case description: A newborn male with extensive vesico-bullous lesions on the anterior side of his chest and abdomen at birth. He was admitted to the pediatric ward of a hospital for an etiological diagnosis and for treatment. Based on maternal history and a clinical evaluation, the patient was diagnosed with neonatal vulgar pemphigus. His progression was satisfactory and, in the end, he did not need pharmacological interventions. Comments: The cases reported in the literature and the references evaluated reveal that neonatal pemphigus is rare, but that knowledge about the disease allows for an early diagnosis to be made. This has great clinical relevance considering that the disease usually manifests itself in the form of extensive epidermal lesions, even though it is transient and benign, it does not require specific treatment, and it does not have any relation with possible future diseases.
DOI: 10.7284/135891
title: Water Temperature data collected during research cruise SKQ201918S using a Sea-Bird SBE-38 instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243793.v1
title: NEONATAL PEMPHIGUS IN AN INFANT BORN TO A MOTHER WITH PEMPHIGUS VULGARIS: A CASE REPORT

description: ABSTRACT Objective: To report on the case of a patient with neonatal pemphigus that had extensive and critical skin lesions at birth. Case description: A newborn male with extensive vesico-bullous lesions on the anterior side of his chest and abdomen at birth. He was admitted to the pediatric ward of a hospital for an etiological diagnosis and for treatment. Based on maternal history and a clinical evaluation, the patient was diagnosed with neonatal vulgar pemphigus. His progression was satisfactory and, in the end, he did not need pharmacological interventions. Comments: The cases reported in the literature and the references evaluated reveal that neonatal pemphigus is rare, but that knowledge about the disease allows for an early diagnosis to be made. This has great clinical relevance considering that the disease usually manifests itself in the form of extensive epidermal lesions, even though it is transient and benign, it does not require specific treatment, and it does not have any relation with possible future diseases.
DOI: 10.6084/m9.figshare.7243787
title: Treatment optimization of greywater from the combined use of chemical coagulants

description: ABSTRACT With the growing demand and shortage of water, efforts are needed to enable alternative sources of supply. Thus, this work was focused on optimizing the treatment of greywater by associating the chemical coagulants aluminum sulfate and ferric chloride, to enable their reuse. Therefore, the research was divided into three stages: characterization greywater from basin and shower of a single-family residence; assessing the combined use of aluminum sulfate and ferric chloride, prepared in 5% solution for the treatment of greywater, optimizing the concentrations of chemical coagulants applying Central Composed of Rotational Design and evaluating the data via Methodology Surface Response and Global Desirability; and evaluating the effectiveness of the proposed treatment, comparing the optimum dosages determined with laboratory tests. The results indicated that the combination of aluminum sulfate (concentration 0.470 g.L-1) and ferric chloride (concentration 0.115 g.L-1) potentiated treatment, achieving a removal of greywater turbidity of up to 94%; also, thermotolerant coliforms and residual chlorine were reduced, making it possible to reuse them in the discharge of toilets and in irrigation.
DOI: 10.7284/135156
title: ADCP (Acoustic Doppler Current Profiler) data collected during research cruise SKQ201919S using a Hawaii UHDAS instrument system onboard the platform RV Sikuliaq

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7243784
title: MAXIMUM HEART RATE MEASURED VERSUS ESTIMATED BY DIFFERENT EQUATIONS DURING THE CARDIOPULMONARY EXERCISE TEST IN OBESE ADOLESCENTS

description: ABSTRACT Objective: To compare the values of measured maximum heart rate (HRmax) and maximum heart rate estimated by different equations during the cardiopulmonary exercise test (CPET) in obese adolescents. Methods: This is a cross-sectional study. Adolescents aged between 15 and 18 years old, with obesity (BMI Z-score&gt;2.0) were included. Demographic and anthropometric data were collected, followed by CPET, recording HRmax. The highest heart rate reached at peak exercise was considered as HRmax. The comparison between measured and estimated HRmax values was performed using four previous equations. Descriptive statistics and the ANOVA test (Bonferroni post-test) were used. Results: Fifty-nine obese adolescents were included, 44% of them male. The mean age was 16.8±1.2 years old and the BMI (Z-score) was 3.0±0.7. At peak exercise, the mean HRmax (bpm) was 190.0±9.2, the respiratory coefficient was 1.2±0.1, and the VO2max (mL/kg/min) was 26.9±4.5. When comparing the measured values of HRmax with those estimated by the different formulas, the equations “220-age”, “208-0.7 x age” and “207-0.7 x age” were shown to overestimate (p&lt;0.001) the measured HRmax results in obese adolescents. Only the “200-0.48 x age” equation presented similar results (p=0.103) with the values measured in the CPET. Conclusions: The findings of the present study demonstrate that the equation “200-0.48 x age” seems to be more adequate to estimate HRmax in obese adolescents.