cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7678460.v1
title: Response of aquatic macrophyte biomass to limnological changes under water level fluctuation in tropical reservoirs

description: Abstract We evaluated the response of the biomass of aquatic macrophytes under limnological changes after water level fluctuation (WLF) of two tropical reservoirs (R1 and R2), located in northeastern Brazil. Initially we tested the hypothesis that post-WLF limnological conditions and biomass of macrophytes increase or decrease, depending on the variable or species. We monitored a 4 × 50 m permanent plot, in four expeditions per period (pre- or post-WLF), assessing species biomass and 10 limnological variables. We utilized 0.25 × 0.25 m quadrats for biomass. Once the effect of WLF in limnological variables and species biomass was confirmed, we utilized Canonical Correspondence Analysis to understand the relationship between limnological variables and species biomass. The abundant and/or dominant species in pre-WLF of R1 ( Pistia stratiotes, Eichhornia crassipes and Salvinia auriculata) and R2 (Paspalidium geminatum and S. auriculata) reduced their biomass post-WLF and were correlated with temperature, total phosphorous and nitrate. The reduced biomass of P. stratiotes, E. crassipes and S. auriculata in post-WLF widened resource availability, allowing coexistence of species. Therefore, we suggest that the change of limnological conditions in post-WLF in artificial lakes acts only as a moderator factor of the interspecific interaction (especially coexistence), without direct relation between these conditions and species biomass.
DOI: 10.7284/105062
title: GNSS (Global Navigation Satellite System) data collected during research cruise BH10-18 using a Northstar 941X instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7678454.v1
title: Integrated Experimental Approach for Alloying of Surface Layer Ti6Al4V+B4C Metal Matrix Composites using Laser Treatment

description: Surface engineering applications have brought the titanium and its alloys into the limelight in the manufacturing industries such as the aerospace, automobile, marine, chemical processing industry, nuclear power and biomedical. Despite the growths experienced in the use of this material, it is plagued with poor wear behaviour, especially when in contact with other materials during application. In this research work, the reinforcement of titanium alloy (Ti6Al4V) and boron carbide (B4C) ceramic powders was employed to form the Ti6Al4V+B4C composites. The effect of laser power on the micrograph, microhardness, surface roughness and wear has been investigated. The micrographic evaluation, the geometrical analyses and the effect of laser power on the width and height of deposit, aspect ratio and dilution rate were also evaluated. The highest aspect ratio of 5.31 and dilution rate of 63.81 % was observed in sample MB5 deposited with a laser power of 2400 W. The dry sliding friction and wear conducted using a 10 mm diameter tungsten carbide ball and a normal load of 25 N revealed that sample MB2 produced at a laser power of 1800 W has the lowest wear depth and wear width of 74.6 µm and 1080.77 µm. From the lowest COF attributed by sample MB5, it can be inferred that coefficient of friction does not determine the wear loss due to the sticking of some wear debris to the wear track during sliding action. Thus, other wearing factors are also considered for the wear loss evaluation. However, this composite can be used for the repair of the worm part of a rotating shaft and turbine blades.
DOI: 10.6084/m9.figshare.7678439
title: An evaluation of the competences and abilities of the production engineer in the industrial environment

description: Abstract The objective of this work is to investigate how companies assess the competences and abilities of the production engineer to carry out their activities in the industrial environment. The methodology involved a literature review and survey research in 46 large-sized companies, in the manufacturing industry of the state of São Paulo. The results showed that companies recognize the importance of competences and abilities of the production engineer for the industrial environment, but at the same time, they point to deficiencies of the professional regarding them. The results of this survey conclude that efforts should be made to address these deficiencies in the professional qualification of the production engineers. It is understood, therefore, that in competitive scenarios it is necessary a stronger integration between educational institutions and companies so that in this way they can generate together more training and experience, which in turn improve the competences that, in turn, improve abilities, and result in more qualified professionals to create solutions and solve industry problems.
DOI: 10.6084/m9.figshare.7678442
title: DUATHLON TRAINING MODEL ADAPTED FOR FEMALE RATS: BLOOD GLUCOSE-LACTATE CORRELATIONS

description: ABSTRACT Objective: To propose a duathlon model adapted for rats (associated swimming and running training) and compare it with the individual activities carried out separately, considering the glucose uptake and serum lactate production mechanism. Methods: Twenty-eight 90-day-old Wistar rats with a mean weight of 150-200 g were used. The animals were divided into four groups: control group, swimming group, running group, and swimming/running group. These animals were adapted to their respective training programs for three days and underwent the 4-week training protocol soon afterwards. Pre- and post-training blood lactate and blood glucose analyses were performed at the end of each week. Statistical difference was considered when the p value was less than 0.01 (p &lt;0.01). Results: There was a decrease in glycemic levels and an increase in lactate levels in the swimming and swimming/running groups throughout the training period, which did not occur in the running group. Conclusion: The duathlon model adapted for rats proved satisfactory in terms of the production and stabilization of blood lactate levels. Level of evidence II; Therapeutic Studies - Investigating the Results of Treatment.
DOI: 10.6084/m9.figshare.7678445
title: The daylight saving borderline: quasi-experimental analysis of the electric power consumption in Bahia and Tocantins

description: Abstract The daylight saving time is adopted in Brazil to improve the energy efficiency and the interconnected electrical system safety. Southern states tend to contribute more in this direction, with a questionable boundary in Bahia and Tocantins. Exploring the causal inference model of Neyman-Rubin and some quasi-experimental situations in Bahia and Tocantins, the article analyzes the trajectories of the total state consumption of electric energy using differences-in-differences and synthetic control. It is concluded that the participation of Bahia generates an energy economy of up to 252 GWh, and that the participation of Tocantins does not generate significant effects.
DOI: 10.6084/m9.figshare.7678448
title: High-flow nasal cannula in the treatment of acute hypoxemic respiratory failure in a pregnant patient: case report

description: ABSTRACT Little evidence exists to support the use of noninvasive mechanical ventilation for acute hypoxemic respiratory failure. However, considering the complications associated with endotracheal intubation, we attempted to implement noninvasive mechanical ventilation in a 24-year-old patient who was 32 weeks pregnant and was admitted to the intensive care unit with acute hypoxemic respiratory failure and sepsis secondary to a urinary tract infection. Lack of tolerance to noninvasive mechanical ventilation led us to use an alternative method to avoid endotracheal intubation. The use of high-flow nasal cannula allowed to overcome this situation, wich supports this technique as a treatment option for critical obstetric patients that is safe for both the mother and fetus.
DOI: 10.6084/m9.figshare.7678451.v1
title: Acute citrulline oral supplementation induces greater post-exercise hypotension response in hypertensive than normotensive individuals

description: ABSTRACT Objective To investigate whether acute citrulline supplementation might influence post-exercise hypotension in normotensive and hypertensive individuals. Methods Following a randomized double-blind design, twenty normotensive (28±7 years, 74±17kg, 1.7±0.09m) and 20 hypertensive individuals (55±12 years, 76±15kg, 1.59±0.09m) were randomly assigned to one of the four experimental groups (Normotensive-Placebo; Normotensive-Citrulline; Hypertensive-Placebo; Hypertensive-Citrulline). The placebo groups ingested 6g of corn starch and the citrulline groups ingested 6g of citrulline dissolved in water. The participants performed 40 minutes of walking/running on a treadmill at 60-70% heart rate reserve. Blood pressure was measured immediately after a 60-min exercise session using an oscillometric device and 24-h ambulatory monitoring. Results The post-exercise hypotension was more pronounced in hypertensives and the Hypertensive-Citrulline group showed a consistent systolic blood pressure reduction during the laboratorial phase, which can be seen by looking at the mean of 60 minutes (-15.01mmHg vs -3.14mmHg [P=0.005]; -4.16mmHg [P=0.009]; -6.30mmHg [P=0.033] in comparison with the Normotensive-Placebo, Normotensive-Citrulline, and Hypertensive-Placebo groups, respectively). During ambulatory blood pressure monitoring, the Hypertensive-Citrulline group showed a significant reduction in systolic blood pressure (-21.05mmHg) in the awake period compared with the Normotensive-Citrulline group (-3.17mmHg [P=0.010]). Conclusion Acute citrulline oral supplementation can induce greater post-exercise hypotension response in hypertensive than normotensive individuals.
DOI: 10.7284/111740
title: CTD (Conductivity, Temperature, Depth) data collected during research cruise BH10-19 using a Sea-Bird SBE-911+ instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7678442.v1
title: DUATHLON TRAINING MODEL ADAPTED FOR FEMALE RATS: BLOOD GLUCOSE-LACTATE CORRELATIONS

description: ABSTRACT Objective: To propose a duathlon model adapted for rats (associated swimming and running training) and compare it with the individual activities carried out separately, considering the glucose uptake and serum lactate production mechanism. Methods: Twenty-eight 90-day-old Wistar rats with a mean weight of 150-200 g were used. The animals were divided into four groups: control group, swimming group, running group, and swimming/running group. These animals were adapted to their respective training programs for three days and underwent the 4-week training protocol soon afterwards. Pre- and post-training blood lactate and blood glucose analyses were performed at the end of each week. Statistical difference was considered when the p value was less than 0.01 (p &lt;0.01). Results: There was a decrease in glycemic levels and an increase in lactate levels in the swimming and swimming/running groups throughout the training period, which did not occur in the running group. Conclusion: The duathlon model adapted for rats proved satisfactory in terms of the production and stabilization of blood lactate levels. Level of evidence II; Therapeutic Studies - Investigating the Results of Treatment.
DOI: 10.6084/m9.figshare.7678445.v1
title: The daylight saving borderline: quasi-experimental analysis of the electric power consumption in Bahia and Tocantins

description: Abstract The daylight saving time is adopted in Brazil to improve the energy efficiency and the interconnected electrical system safety. Southern states tend to contribute more in this direction, with a questionable boundary in Bahia and Tocantins. Exploring the causal inference model of Neyman-Rubin and some quasi-experimental situations in Bahia and Tocantins, the article analyzes the trajectories of the total state consumption of electric energy using differences-in-differences and synthetic control. It is concluded that the participation of Bahia generates an energy economy of up to 252 GWh, and that the participation of Tocantins does not generate significant effects.
DOI: 10.6084/m9.figshare.7678448.v1
title: High-flow nasal cannula in the treatment of acute hypoxemic respiratory failure in a pregnant patient: case report

description: ABSTRACT Little evidence exists to support the use of noninvasive mechanical ventilation for acute hypoxemic respiratory failure. However, considering the complications associated with endotracheal intubation, we attempted to implement noninvasive mechanical ventilation in a 24-year-old patient who was 32 weeks pregnant and was admitted to the intensive care unit with acute hypoxemic respiratory failure and sepsis secondary to a urinary tract infection. Lack of tolerance to noninvasive mechanical ventilation led us to use an alternative method to avoid endotracheal intubation. The use of high-flow nasal cannula allowed to overcome this situation, wich supports this technique as a treatment option for critical obstetric patients that is safe for both the mother and fetus.
DOI: 10.6084/m9.figshare.7678433
title: IS THERE AN ASSOCIATION BETWEEN GLUCOCORTICOID USE AND FRACTURES? A COMPARATIVE STUDY IN A TRAUMA HOSPITAL

description: ABSTRACT Objective: To assess the association between traumatic fractures and glucocorticoids taken 12 months prior to a trauma, in children and adolescents seen at an emergency room. Methods: A case-control study was conducted from April to October 2015, at a pediatric emergency hospital with patients aged 3- to 14 years-old, who had suffered physical trauma. Some of the patients had a fracture and some did not. The data analyzed were obtained from medical records, physical examination of the patients, and interview with the patients’ caregivers. Glucocorticoid use in the past 12 months, demographic variables, body mass index, milk intake, trauma intensity, physical activity and smoking in the household were compared between the two patient groups. Results: A total of 104 patients with physical trauma were studied - 50 had a fracture and 54 did not. Of all the patients, 15.4% had previously used glucocorticoids, and there were no statistically significant differences between the groups. The age range of 10- to 14 years-old, severe trauma and physical activity were more prevalent among patients with a bone fracture. Conclusions: This study did not find an association between previous glucocorticoid use and the occurrence of fractures in children and adolescents. The age range of 10- to 14 years-old, severe trauma, and physical activity were associated with an increased risk for fractures.
DOI: 10.6084/m9.figshare.7678436
title: Extraction of β-glucan of Hericium erinaceus, Avena sativa L., and Saccharomyces cerevisiae and in vivo evaluation of their immunomodulatory effects

description: Abstract Beta-glucan (BG) is one of the most common types of polysaccharides, and is a potent immune activator. It is present in microbes, plants, and mushrooms. The immunomodulatory properties of BG are varied among different species. This paper explains the composition of BG from yeast (Saccharomyces cerevisiae HII31), oat (Avena sativa L.) and mushroom (Hericium erinaceus), and also describes in vivo immunomodulation and changes in the antioxidant capacity of BG. In vivo studies were conducted in BALB/cMlac mice, and changes in cytokines level, antioxidant enzymes, and total antioxidant capacity were evaluated. About 91.42 ± 5.07, 86.90 ± 3.44, and 84.43 ± 4.10% of BG were recorded in yeast, mushroom, and oat samples, respectively, with 4-5% of α-glucan in all the samples. The band area range ratio analysis indicate that yeast and mushroom have a high content of β-1,3-glucan followed by β-1,6-glucan, whereas oat recorded a high content of β-1,4-glucan. Yeast-BG stimulated the expression of IL-6, IL-17, IFN-γ, IL-10, and TGF-β effectively. Moreover, antioxidant capacity was enhanced during yeast-BG supplementation in a dose-dependent manner than oat and mushroom BG. This study reveals that yeast-BG is a potent immune activator and enhancer of the host’s antioxidant capacity than oat, and mushroom-BG.
DOI: 10.6084/m9.figshare.7678439.v1
title: An evaluation of the competences and abilities of the production engineer in the industrial environment

description: Abstract The objective of this work is to investigate how companies assess the competences and abilities of the production engineer to carry out their activities in the industrial environment. The methodology involved a literature review and survey research in 46 large-sized companies, in the manufacturing industry of the state of São Paulo. The results showed that companies recognize the importance of competences and abilities of the production engineer for the industrial environment, but at the same time, they point to deficiencies of the professional regarding them. The results of this survey conclude that efforts should be made to address these deficiencies in the professional qualification of the production engineers. It is understood, therefore, that in competitive scenarios it is necessary a stronger integration between educational institutions and companies so that in this way they can generate together more training and experience, which in turn improve the competences that, in turn, improve abilities, and result in more qualified professionals to create solutions and solve industry problems.
DOI: 10.7284/111742
title: CTD (Conductivity, Temperature, Depth) data collected during research cruise BH10-21 using a Sea-Bird SBE-911+ instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7678424
title: Risk factors for vascular catheter-related bloodstream infections in pediatric intensive care units

description: ABSTRACT Objectives: To determine the risk factors for acquiring central line-associated blood stream infections (CLABSI) in pediatric intensive care units and to investigate the incidence and etiology of CLABSI in pediatric intensive care units with different profiles. Methods: The study was a prospective cohort study in three hospitals. One of the hospitals is a large metropolitan public hospital with two pediatric intensive care units and a total of nineteen pediatric intensive care unit beds, another is a regional hospital with eight pediatric intensive care unit beds, and the third is a private hospital with fifteen beds. Patients between the ages of 1 month old and 18 years old who used a central venous catheter for over 24 hours were included. We recorded patients’ daily progress. General patient and catheter-related data were collected and used as variables. All the data were analyzed using Statistical Package for Social Science (SPSS), version 13.0, to compare patients with CLABSI with or without risk factors. Results: A total of 728 patients were admitted to the pediatric intensive care units, and 170 had a central line in place for at least 24 hours. The median age was 32 months, and 97 (57%) of the patients were males. The CLABSI incidence rate was 3.9/1000 central venous catheter-days. The incidence among hospitals varied from 1.6 to 6.6. The overall mortality rate was 11.1%, and the CLABSI and non-CLABSI mortality rates were 12.9% and 10.7%, respectively. In multivariate analysis, independent risk factors for CLABSI were a longer duration of central venous catheter use (OR: 1.07; 95%CI 1.00 - 1.14; p = 0.019) and the use of more than one central venous catheter at once (OR: 2.59; 95%CI 1.17 - 5.73; p = 0.048). Conclusion: A longer duration of central venous catheter use and the use of more than one central venous catheter at once were the main risk factors for CLABSI in pediatric intensive care units.
DOI: 10.6084/m9.figshare.7678430
title: A multicomponent system based on a blend of agroindustrial wastes for the simultaneous production of industrially applicable enzymes by solid-state fermentation

description: Abstract This study reports the use of statistical mixture design as a tool for the simultaneous production of lipase, CMCase, α-amylase, and β-glucosidase by Aspergillus niger under solid-state fermentation. Wheat bran, soybean meal, cottonseed meal, and orange peel were used as substrates, either individually or combined in different formulations, to study their synergistic or antagonistic effects on production of the enzymes. The highest lipase (323 U g-1) and CMCase (10 U g-1) activities were detected after 48 h, while the maximum activities of α-amylase (18 U g-1) and β-glucosidase (15 U g-1) occurred at 72 and 96 h, respectively. Considering the substrate formulation, the ternary mixture of wheat bran (1/3), soybean meal (1/3), and cottonseed meal (1/3) was the most versatile, showing production of CMCase (&gt;5 U g-1) and α-amylase (&gt;8 U g-1) at 24 h, lipase (&gt;320 U g-1) at 72 h, and β-glucosidase (&gt;10 U g-1) at 48 h.
DOI: 10.6084/m9.figshare.7678430.v1
title: A multicomponent system based on a blend of agroindustrial wastes for the simultaneous production of industrially applicable enzymes by solid-state fermentation

description: Abstract This study reports the use of statistical mixture design as a tool for the simultaneous production of lipase, CMCase, α-amylase, and β-glucosidase by Aspergillus niger under solid-state fermentation. Wheat bran, soybean meal, cottonseed meal, and orange peel were used as substrates, either individually or combined in different formulations, to study their synergistic or antagonistic effects on production of the enzymes. The highest lipase (323 U g-1) and CMCase (10 U g-1) activities were detected after 48 h, while the maximum activities of α-amylase (18 U g-1) and β-glucosidase (15 U g-1) occurred at 72 and 96 h, respectively. Considering the substrate formulation, the ternary mixture of wheat bran (1/3), soybean meal (1/3), and cottonseed meal (1/3) was the most versatile, showing production of CMCase (&gt;5 U g-1) and α-amylase (&gt;8 U g-1) at 24 h, lipase (&gt;320 U g-1) at 72 h, and β-glucosidase (&gt;10 U g-1) at 48 h.
DOI: 10.6084/m9.figshare.7678433.v1
title: IS THERE AN ASSOCIATION BETWEEN GLUCOCORTICOID USE AND FRACTURES? A COMPARATIVE STUDY IN A TRAUMA HOSPITAL

description: ABSTRACT Objective: To assess the association between traumatic fractures and glucocorticoids taken 12 months prior to a trauma, in children and adolescents seen at an emergency room. Methods: A case-control study was conducted from April to October 2015, at a pediatric emergency hospital with patients aged 3- to 14 years-old, who had suffered physical trauma. Some of the patients had a fracture and some did not. The data analyzed were obtained from medical records, physical examination of the patients, and interview with the patients’ caregivers. Glucocorticoid use in the past 12 months, demographic variables, body mass index, milk intake, trauma intensity, physical activity and smoking in the household were compared between the two patient groups. Results: A total of 104 patients with physical trauma were studied - 50 had a fracture and 54 did not. Of all the patients, 15.4% had previously used glucocorticoids, and there were no statistically significant differences between the groups. The age range of 10- to 14 years-old, severe trauma and physical activity were more prevalent among patients with a bone fracture. Conclusions: This study did not find an association between previous glucocorticoid use and the occurrence of fractures in children and adolescents. The age range of 10- to 14 years-old, severe trauma, and physical activity were associated with an increased risk for fractures.