cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7899065.v1
title: Sanitation on fluvial passenger ships in Amazônia: an analysis of risks to the environment and to health through fuzzy logic

description: ABSTRACT Fluvial transportation is one of the main ways of transportation for people and loads in the Amazon region. This work has as its main goal to analyze, through the Fuzzy Logic, the risks to the environment and to people’s health regarding the sanitary effluents of fluvial passengers ships in the Amazon Region, as well as the human consumable water distributed on board. To achieve these goals, superficial water collections in specific points of the Amazonas river and collections of human consumable water on board during a trip of 830 km between Santarém/PA and Belém/PA in a fluvial passenger ship were performed. The results showed that the ship that goes through the regular line Belém/Santarém/Belém does not have any methods of caption, storage and sanitary treatment of the effluents and the water served, throwing dejects directly into the river. The consumable water used by the passengers and the crew on board has a terrible quality, because 89% of the samples were contaminated with total coliforms and 84% with Escherichia coli. All superficial water samples were contaminated by total coliforms and E. coli. Statistics and the Fuzzy Logic model pointed that the risks are very high for the environment and for human health due of the lack of sanitation of these fluvial passenger ships in Amazon.
DOI: 10.6084/m9.figshare.7899053
title: Implementation of a Mental Health internship in a higher education institution

description: ABSTRACT The approval of the More Doctors Program has triggered a number of readjustments of the National Curricular Guidelines (DCNs) for Medical Education, like the creation of a mental health internship integrated into the health service and community. Due to this demand, the higher education institutions have been encouraged to innovate in their teaching-learning methodologies in order to guarantee a generalist, humanistic and critical professional education. We report the experience of a private higher education institution in the implementation of a mental health internship in consonance with the new DCNs. We present all the steps of the implementation, reporting the participation of students, supervisors, preceptors and managers. We show that a mental health internship linked to different levels of healthcare promotes learning conditions capable of favoring the decentralization of care and application of the community/family approach.
DOI: 10.6084/m9.figshare.7899056.v1
title: Conditions of the provision of environmental services for collection and disposal of health services’ residues at Basic Health Units in the city of Pelotas, RS, Brazil

description: ABSTRACT The residues of health services (RHSs), when improperly disposed can offer risks, to the environment, to the health of the population and to health and cleanliness workers. It makes a correct management both intra and extra unit necessary. Regarding these wastes, two resolutions stand out, the RDC n.306/04 ANVISA and CONAMA n.358/05 besides the National Policy of Solid Waste (NPSW). The growing concern with the RHS, as well as the specific legislation, makes an interesting assessment for the provision of collection and disposal services. These services are considered provision of environmental services (PES), having that they seek at minimizing the risk of contamination to the environment through environmentally adequate. Assessing the satisfaction concerning services provided by specialized companies is also relevant. Thus, the objective of this work was to evaluate the provision of environmental services for the collection and disposal of health services residues at Basic Health Units in the city of Pelotas, RS and perform the satisfaction survey on services provided by companies and their adequacy to the current legislation. The research was carried out through questionnaires applied in person and, based on the results found, it may conclude that, although there are problems related to the management of these residues in the units, there are advances in the search for the compliance with the law and, in general, the consulted units are satisfied with the services provided.
DOI: 10.6084/m9.figshare.7899059.v1
title: Association between type of feeding at discharge from the hospital and nutritional status of very low birth weight preterm infants

description: The ideal feeding for premature babies has been the source of extensive debate. The aim of this study was to assess the association between type of feeding at discharge and the nutritional status of very low birth weight infants. This was a retrospective cohort of preterm babies with birth weight ≤1500 g, born between January 2006 and December 2013. The infants were divided into 3 groups according to type of feeding at discharge: exclusive breast milk (group 1), mixed feeding (group 2) and exclusive artificial formula (group 3). Frequencies of each group were calculated, as well as mean Z-score differences in weight, length and head circumference. Six hundred and forty-nine newborns were included. The mean weight of groups 1, 2, and 3 was 1338.7, 1104.0, and 1254.7 g, respectively, and their mean gestational age was 31.9, 30, and 31.2 weeks, respectively. The Z-score differences (means±SD) for groups 1, 2, and 3 were: −0.84±0.68, −1.02±0.75, and −0.86±0.71 for weight, −0.21±1.23, −0.52±1.64 and −0.08±1.34 for head circumference, and −1.10±1.18, −1.54±1.37, and −0.97±1.21 for length. A significant difference was observed between groups 2 and 3 in the adjusted Z-score model for length, with no significant differences in anthropometric measurements for the other comparative analyses. Because of its many advantages, breastfeeding should be stimulated within neonatal units since nutritional status was not influenced by the different types of feeding.
DOI: 10.6084/m9.figshare.7899041
title: Gamma irradiation effects on polycaprolactone/zinc oxide nanocomposite films

description: Abstract Polycaprolactone (PCL) to which has been added zinc oxide nanoparticles (ZnO NPs) produces nanocomposites (PCL/ZnO NCs). These nanocomposites can be used in biomedical applications and in the food packaging sector. However, for these materials to be used in these applications, they need to be sterilized. For this, gamma irradiation is the most common method. Thus it is important to evaluate the effects of gamma irradiation on the properties of PCL and PCL/ZnO that have been exposed to gamma irradiation. PCL/ZnO NCs films were obtained by solvent casting and exposed to gamma irradiation at 25 kGy and evaluated by Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) scanning electron microscopy (SEM) and mechanical properties. Mechanical properties and crystallinity showed marginal variations for the irradiated samples. The results obtained demonstrate that gamma irradiation at 25 kGy, did not cause profound changes in nanocomposite properties.
DOI: 10.6084/m9.figshare.7899047
title: A single resistance exercise session improves myocardial contractility in spontaneously hypertensive rats

description: Resistance training evokes myocardial adaptation; however, the effects of a single resistance exercise session on cardiac performance are poorly understood or investigated. This study aimed to investigate the effects of a single resistance exercise session on the myocardial contractility of spontaneously hypertensive rats (SHRs). Male 3-month-old SHRs were divided into two groups: control (Ct) and exercise (Ex). Control animals were submitted to sham exercise. Blood pressure was measured in conscious rats before the exercise session to confirm the presence of arterial hypertension. Ten minutes after the exercise session, the animals were anesthetized and killed, and the hearts were removed. Cardiac contractility was evaluated in the whole heart by the Langendorff technique and by isometric contractions of isolated left ventricular papillary muscles. SERCA2a, phospholamban (PLB), and phosphorylated PLB expression were investigated by Western blot. Exercise increased force development of isolated papillary muscles (Ex=1.0±0.1 g/mg vs Ct=0.63±0.2 g/mg, P&lt;0.05). Post-rest contraction was greater in the exercised animals (Ex=4.1±0.4% vs Ct=1.7±0.2%, P&lt;0.05). Papillary muscles of exercised animals developed greater force under increasing isoproterenol concentrations (P&lt;0.05). In the isolated heart, exercise increased left ventricular isovolumetric systolic pressure (LVISP; Δ +39 mmHg; P&lt;0.05) from baseline conditions. Hearts from the exercised rats presented a greater response to increasing diastolic pressure. Positive inotropic intervention to calcium and isoproterenol resulted in greater LVISP in exercised animals (P&lt;0.05). The results demonstrated that a single resistance exercise session improved myocardial contractility in SHRs.
DOI: 10.6084/m9.figshare.7899050
title: Estimating the mass transfer coefficient using the floating soluble probes technique: a laboratory study

description: ABSTRACT The floating solid soluble probe is a low-cost technique for estimating the mass transfer coefficient of oxygen in the air-water interface (Ka). This technique is based on the fact that Ka can be correlated with the dissolution rate of a soluble solid (VS), since both parameters are influenced by the surface turbulence. The aim of this study was to calibrate a new floating solid soluble probe configuration. Surface reaeration experiments and dissolution of the soluble solid probe were performed in two experimental apparatus (jets stirred tank and a circular hydraulic channel), in which different levels of turbulence were produced. The results showed a strong correlation between Ka and VS, r = 0.953 for experiments performed on the tank and r = 0.895 for experiments performed on the channel. The new floating solid soluble probe configuration provided an increasing Ka.VS -1 ratio as a function of the Reynolds number, indicating that the relationship between these two parameters depends on the surface turbulence. We conclude that the floating solid soluble probe technique has a high potential, despite calibrations in natural water bodies and equipment with a turbulence structure different from those used in this study are still necessary to definitive utility.
DOI: 10.6084/m9.figshare.7899044
title: Expression profile of endothelin receptors (ETA and ETB) and microRNAs-155 and -199 in the corpus cavernosum of rats submitted to chronic alcoholism and diabetes mellitus

description: Recent evidence shows that chronic ethanol consumption increases endothelin (ET)-1 induced sustained contraction of trabecular smooth muscle cells of the corpora cavernosa in corpus cavernosum of rats by a mechanism that involves increased expression of ETA and ETB receptors. Our goal was to evaluate the effects of alcohol and diabetes and their relationship to miRNA-155, miRNA-199 and endothelin receptors in the corpus cavernosum and blood of rats submitted to the experimental model of diabetes mellitus and chronic alcoholism. Forty-eight male Wistar rats were divided into four groups: control (C), alcoholic (A), diabetic (D), and alcoholic-diabetic (AD). Samples of the corpus cavernosum were prepared to study the protein expression of endothelin receptors by immunohistochemistry and expression of miRNAs-155 and -199 in serum and the cavernous tissue. Immunostaining for endothelin receptors was markedly higher in the A, D, and AD groups than in the C group. Moreover, a significant hypoexpression of the miRNA-199 in the corpus cavernosum tissue from the AD group was observed, compared to the C group. When analyzing the microRNA profile in blood, a significant hypoexpression of miRNA-155 in the AD group was observed compared to the C group. The miRNA-199 analysis demonstrated significant hypoexpression in D and AD groups compared to the C group. Our findings in corpus cavernosum showed downregulated miRNA-155 and miRNA-199 levels associated with upregulated protein expression and unaltered mRNA expression of ET receptors suggesting decreased ET receptor turnover, which can contribute to erectile dysfunction in diabetic rats exposed to high alcohol levels.
DOI: 10.6084/m9.figshare.7899050.v1
title: Estimating the mass transfer coefficient using the floating soluble probes technique: a laboratory study

description: ABSTRACT The floating solid soluble probe is a low-cost technique for estimating the mass transfer coefficient of oxygen in the air-water interface (Ka). This technique is based on the fact that Ka can be correlated with the dissolution rate of a soluble solid (VS), since both parameters are influenced by the surface turbulence. The aim of this study was to calibrate a new floating solid soluble probe configuration. Surface reaeration experiments and dissolution of the soluble solid probe were performed in two experimental apparatus (jets stirred tank and a circular hydraulic channel), in which different levels of turbulence were produced. The results showed a strong correlation between Ka and VS, r = 0.953 for experiments performed on the tank and r = 0.895 for experiments performed on the channel. The new floating solid soluble probe configuration provided an increasing Ka.VS -1 ratio as a function of the Reynolds number, indicating that the relationship between these two parameters depends on the surface turbulence. We conclude that the floating solid soluble probe technique has a high potential, despite calibrations in natural water bodies and equipment with a turbulence structure different from those used in this study are still necessary to definitive utility.
DOI: 10.6084/m9.figshare.7899053.v1
title: Implementation of a Mental Health internship in a higher education institution

description: ABSTRACT The approval of the More Doctors Program has triggered a number of readjustments of the National Curricular Guidelines (DCNs) for Medical Education, like the creation of a mental health internship integrated into the health service and community. Due to this demand, the higher education institutions have been encouraged to innovate in their teaching-learning methodologies in order to guarantee a generalist, humanistic and critical professional education. We report the experience of a private higher education institution in the implementation of a mental health internship in consonance with the new DCNs. We present all the steps of the implementation, reporting the participation of students, supervisors, preceptors and managers. We show that a mental health internship linked to different levels of healthcare promotes learning conditions capable of favoring the decentralization of care and application of the community/family approach.
DOI: 10.6084/m9.figshare.7899038
title: Chemical, ecotoxicological and genotoxicological evaluation of waters of open pit mine lakes

description: ABSTRACT Artificial lakes formed in open pit mining areas are complex units and constitute emerging environmental liabilities arising from the mining industry. Although they are increasing in number in several parts of the world, they still form a recent and little studied environmental problem, especially regarding the quality and toxicity of its waters, which may represent worrying environmental risks. This study describes the results of the seasonal analysis of chemical, ecotoxicological and genotoxicological aspects of the waters of three disused gold mining pit lakes located in Mara Rosa, Goiás, Brazil. Samples were collected in profile in two different climatic seasons, winter and summer, and were chemically analyzed to determine their load of metals and anions. Ecotoxicological Tests and Comet Assays were also developed with fish of the Danio rerio species. The results indicated that the concentrations of the chemical species analyzed were predominantly increased in the surface-bottom direction and higher during the dry season. Lago Azul waters have been shown to be chemically more compromised as they are acidic and rich in potentially toxic analytes such as aluminum, cadmium, lead, copper, manganese, nickel, and zinc. No significant ecotoxicological alterations were identified for any of the analyzed samples, although, in genotoxicological terms, Lago Azul presented DNA damage from concentrations of 25% in the dry season and 50% in the wet season.
DOI: 10.6084/m9.figshare.7899041.v1
title: Gamma irradiation effects on polycaprolactone/zinc oxide nanocomposite films

description: Abstract Polycaprolactone (PCL) to which has been added zinc oxide nanoparticles (ZnO NPs) produces nanocomposites (PCL/ZnO NCs). These nanocomposites can be used in biomedical applications and in the food packaging sector. However, for these materials to be used in these applications, they need to be sterilized. For this, gamma irradiation is the most common method. Thus it is important to evaluate the effects of gamma irradiation on the properties of PCL and PCL/ZnO that have been exposed to gamma irradiation. PCL/ZnO NCs films were obtained by solvent casting and exposed to gamma irradiation at 25 kGy and evaluated by Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) scanning electron microscopy (SEM) and mechanical properties. Mechanical properties and crystallinity showed marginal variations for the irradiated samples. The results obtained demonstrate that gamma irradiation at 25 kGy, did not cause profound changes in nanocomposite properties.
DOI: 10.6084/m9.figshare.7899047.v1
title: A single resistance exercise session improves myocardial contractility in spontaneously hypertensive rats

description: Resistance training evokes myocardial adaptation; however, the effects of a single resistance exercise session on cardiac performance are poorly understood or investigated. This study aimed to investigate the effects of a single resistance exercise session on the myocardial contractility of spontaneously hypertensive rats (SHRs). Male 3-month-old SHRs were divided into two groups: control (Ct) and exercise (Ex). Control animals were submitted to sham exercise. Blood pressure was measured in conscious rats before the exercise session to confirm the presence of arterial hypertension. Ten minutes after the exercise session, the animals were anesthetized and killed, and the hearts were removed. Cardiac contractility was evaluated in the whole heart by the Langendorff technique and by isometric contractions of isolated left ventricular papillary muscles. SERCA2a, phospholamban (PLB), and phosphorylated PLB expression were investigated by Western blot. Exercise increased force development of isolated papillary muscles (Ex=1.0±0.1 g/mg vs Ct=0.63±0.2 g/mg, P&lt;0.05). Post-rest contraction was greater in the exercised animals (Ex=4.1±0.4% vs Ct=1.7±0.2%, P&lt;0.05). Papillary muscles of exercised animals developed greater force under increasing isoproterenol concentrations (P&lt;0.05). In the isolated heart, exercise increased left ventricular isovolumetric systolic pressure (LVISP; Δ +39 mmHg; P&lt;0.05) from baseline conditions. Hearts from the exercised rats presented a greater response to increasing diastolic pressure. Positive inotropic intervention to calcium and isoproterenol resulted in greater LVISP in exercised animals (P&lt;0.05). The results demonstrated that a single resistance exercise session improved myocardial contractility in SHRs.
DOI: 10.6084/m9.figshare.7899044.v1
title: Expression profile of endothelin receptors (ETA and ETB) and microRNAs-155 and -199 in the corpus cavernosum of rats submitted to chronic alcoholism and diabetes mellitus

description: Recent evidence shows that chronic ethanol consumption increases endothelin (ET)-1 induced sustained contraction of trabecular smooth muscle cells of the corpora cavernosa in corpus cavernosum of rats by a mechanism that involves increased expression of ETA and ETB receptors. Our goal was to evaluate the effects of alcohol and diabetes and their relationship to miRNA-155, miRNA-199 and endothelin receptors in the corpus cavernosum and blood of rats submitted to the experimental model of diabetes mellitus and chronic alcoholism. Forty-eight male Wistar rats were divided into four groups: control (C), alcoholic (A), diabetic (D), and alcoholic-diabetic (AD). Samples of the corpus cavernosum were prepared to study the protein expression of endothelin receptors by immunohistochemistry and expression of miRNAs-155 and -199 in serum and the cavernous tissue. Immunostaining for endothelin receptors was markedly higher in the A, D, and AD groups than in the C group. Moreover, a significant hypoexpression of the miRNA-199 in the corpus cavernosum tissue from the AD group was observed, compared to the C group. When analyzing the microRNA profile in blood, a significant hypoexpression of miRNA-155 in the AD group was observed compared to the C group. The miRNA-199 analysis demonstrated significant hypoexpression in D and AD groups compared to the C group. Our findings in corpus cavernosum showed downregulated miRNA-155 and miRNA-199 levels associated with upregulated protein expression and unaltered mRNA expression of ET receptors suggesting decreased ET receptor turnover, which can contribute to erectile dysfunction in diabetic rats exposed to high alcohol levels.
DOI: 10.6084/m9.figshare.7899029
title: Coating of urea granules by in situ polymerization in fluidized bed reactors

description: Abstract The main objective of the present work is to produce and characterize urea granules coated with polymers prepared with aqueous solutions of acrylic acid and glycerol. Both coating and drying of urea granules were performed in a fluidized bed reactor. Fourier transform infrared spectroscopy analyses indicated the presence of poly(acrylic acid) and acrylic acid / glycerol copolymers on the granule coating and the formation of chemical bonds between urea and the polymer coating. Scanning electron microscopy images showed that the original and coated urea granules presented different characteristics, reinforcing the idea that coating occurs in the fluidized bed. Finally, rates of urea release showed that the coated granules presented slightly slower rates of urea dissolution in water due to the presence of the coating layer. Therefore, it is shown that it is possible to produce coated urea granules through in-situ polymerization onto the granule surface using a fluidized bed.