cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.14282889.v1
title: TRANSLANGUAGING: AN APPROACH TO STUDIES IN A FOREIGN AND BRAZILIAN CONTEXT

description: ABSTRACT The main aim of this paper is to discuss the concept of translanguaging through the analysis of academic articles published on this topic in foreign and Brazilian context. The research question took into account discourses and practices that link Brazil to a monolingual reality, which induce a deletion of the multilingual realities existing in the Brazilian territory. Therefore, although Brazil is constituted of different ethnicities, languages and cultures, these traces that identify it as a country seem to have been erased from the Brazilian educational policies. In view of this, the main objectives were to search bibliographic sources about the concept of translanguaging and to define its scope and focus on articles published in a foreign and Brazilian context. The method that led the research is based on a qualitative model according to Denzin & Lincoln (2006). In view of the publications that were analyzed, teaching based on translanguaging pedagogy would contribute to a more inclusive learning and would enable more access to knowledge. The concept of translanguaging is linked to a practical language pedagogy, which seeks to develop teaching and teacher training strategies in multilingual settings.
DOI: 10.6084/m9.figshare.14282891
title: SCIENTIFIC EDUCATION AS A PEDAGOGICAL AND INVESTIGATIVE APPROACH OF RESISTANCE

description: ABSTRACT This article presents a rereading of the approach to scientific education from the field of Science Teaching. It has been proposed to adjust that approach (a) to research practices in applied linguistics studies and (b) to the teaching of mother language and training of teachers. This work is configured in a bibliographical study illustrated by some documentary excerpts. It is based on studies of literacy, in addition to dialoguing with other theoretical references from different origins. The rereading reinforced the need for readjustment of functions traditionally performed by some elements of research and teaching practices. The referrals presented can guarantee more democratic and culturally sensitive scientific investigations, as well as a critical pedagogical approach, triggering reflective practices in language classes.
DOI: 10.6084/m9.figshare.14282891.v1
title: SCIENTIFIC EDUCATION AS A PEDAGOGICAL AND INVESTIGATIVE APPROACH OF RESISTANCE

description: ABSTRACT This article presents a rereading of the approach to scientific education from the field of Science Teaching. It has been proposed to adjust that approach (a) to research practices in applied linguistics studies and (b) to the teaching of mother language and training of teachers. This work is configured in a bibliographical study illustrated by some documentary excerpts. It is based on studies of literacy, in addition to dialoguing with other theoretical references from different origins. The rereading reinforced the need for readjustment of functions traditionally performed by some elements of research and teaching practices. The referrals presented can guarantee more democratic and culturally sensitive scientific investigations, as well as a critical pedagogical approach, triggering reflective practices in language classes.
DOI: 10.6084/m9.figshare.14282892
title: Clinical characteristics and predictors of mechanical ventilation in patients with COVID-19 hospitalized in Southern Brazil

description: Abstract Objective: This study aims to describe the clinical characteristics and predictors of mechanical ventilation of adult inpatients with COVID-19 in a single center. Methods: A retrospective cohort study was performed and included adult inpatients hospitalized from March 17th to May 3rd, 2020, who were diagnosed with SARS-CoV-2 infection. Clinical and demographic characteristics were extracted from electronic medical records. Results: Overall, 88 consecutive patients were included in this study. The median age of the patients was 63 years (IQR 49 - 71); 59 (67%) were male, 65 (86%) had a college degree and 67 (76%) had at least one comorbidity. Twenty-nine (33%) patients were admitted to the intensive care unit, 18 (20%) patients needed mechanical ventilation, and 9 (10.2%) died during hospitalization. The median length of stay in the intensive care unit and the median duration of mechanical ventilation was 23 and 29.5 days, respectively. An age ≥ 65 years was an independent risk factor for mechanical ventilation (OR 8.4 95%CI 1.3 - 55.6 p = 0.02). Conclusion: Our findings describe the first wave of Brazilian patients hospitalized for COVID-19. Age was the strongest predictor of respiratory insufficiency and the need for mechanical ventilation in our population.
DOI: 10.6084/m9.figshare.14282892.v1
title: Clinical characteristics and predictors of mechanical ventilation in patients with COVID-19 hospitalized in Southern Brazil

description: Abstract Objective: This study aims to describe the clinical characteristics and predictors of mechanical ventilation of adult inpatients with COVID-19 in a single center. Methods: A retrospective cohort study was performed and included adult inpatients hospitalized from March 17th to May 3rd, 2020, who were diagnosed with SARS-CoV-2 infection. Clinical and demographic characteristics were extracted from electronic medical records. Results: Overall, 88 consecutive patients were included in this study. The median age of the patients was 63 years (IQR 49 - 71); 59 (67%) were male, 65 (86%) had a college degree and 67 (76%) had at least one comorbidity. Twenty-nine (33%) patients were admitted to the intensive care unit, 18 (20%) patients needed mechanical ventilation, and 9 (10.2%) died during hospitalization. The median length of stay in the intensive care unit and the median duration of mechanical ventilation was 23 and 29.5 days, respectively. An age ≥ 65 years was an independent risk factor for mechanical ventilation (OR 8.4 95%CI 1.3 - 55.6 p = 0.02). Conclusion: Our findings describe the first wave of Brazilian patients hospitalized for COVID-19. Age was the strongest predictor of respiratory insufficiency and the need for mechanical ventilation in our population.
DOI: 10.6084/m9.figshare.14282895
title: The territorial dynamics of innovation in the state of São Paulo: an analysis based on regionalised data from PINTEC

description: Abstract This paper examines the geography of innovation in the state of São Paulo. Its objective is to investigate how territorial factors affect innovation at the regional level. For this, data extracted from PINTEC on innovation at the micro-region level in the state of São Paulo was used and a model based on the knowledge production function applied to the regions was adopted. The results show that local innovative efforts and knowledge spillovers affect innovation in the regions. In addition, a more agglomerated and diversified local production structure results in a faster rate of innovation. These results contribute to the debate by presenting new empirical evidence on the role of locational factors in fostering innovation in Brazil through the use of direct measures of innovative inputs and innovation results.
DOI: 10.6084/m9.figshare.14282895.v1
title: The territorial dynamics of innovation in the state of São Paulo: an analysis based on regionalised data from PINTEC

description: Abstract This paper examines the geography of innovation in the state of São Paulo. Its objective is to investigate how territorial factors affect innovation at the regional level. For this, data extracted from PINTEC on innovation at the micro-region level in the state of São Paulo was used and a model based on the knowledge production function applied to the regions was adopted. The results show that local innovative efforts and knowledge spillovers affect innovation in the regions. In addition, a more agglomerated and diversified local production structure results in a faster rate of innovation. These results contribute to the debate by presenting new empirical evidence on the role of locational factors in fostering innovation in Brazil through the use of direct measures of innovative inputs and innovation results.
DOI: 10.6084/m9.figshare.14282897
title: The textile industry in Brazil: an econometric model analyzing the deindustrialization hypothesis

description: Abstract In the last few years, a possible process of deindustrialization is observed in Brazil. For some researchers, such as the new developmentalists, this scenario is already evident; but for others, such as orthodox economists, it is not possible to diagnose the existence of this process in Brazil. By analyzing the present Brazilian scenario with a slowdown in the economy and reduced purchasing power of families, it is possible to ascertain a deep downturn in the weight of the manufacturing industry in the GDP. This process differs from the one that has occurred in advanced economies, which was healthy and steady. In Brazil, the deindustrialization process can be analyzed from the perspective of the textile industry, especially with market openness to Chinese products. Thus, this work will aim to present, using the Vector Error Correction Model (VECM), the relationship between the deindustrialization processes of the textile industry in Brazil from 1995 to 2015, using Brazilian macroeconomic variables.
DOI: 10.6084/m9.figshare.14282897.v1
title: The textile industry in Brazil: an econometric model analyzing the deindustrialization hypothesis

description: Abstract In the last few years, a possible process of deindustrialization is observed in Brazil. For some researchers, such as the new developmentalists, this scenario is already evident; but for others, such as orthodox economists, it is not possible to diagnose the existence of this process in Brazil. By analyzing the present Brazilian scenario with a slowdown in the economy and reduced purchasing power of families, it is possible to ascertain a deep downturn in the weight of the manufacturing industry in the GDP. This process differs from the one that has occurred in advanced economies, which was healthy and steady. In Brazil, the deindustrialization process can be analyzed from the perspective of the textile industry, especially with market openness to Chinese products. Thus, this work will aim to present, using the Vector Error Correction Model (VECM), the relationship between the deindustrialization processes of the textile industry in Brazil from 1995 to 2015, using Brazilian macroeconomic variables.
DOI: 10.6084/m9.figshare.12210590
title: Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties

description: Abstract In this work, bottle-grade poly(ethylene terephthalate) (PETR), kraft lignin (KL), and chemically modified lignin (ML) were used to form blends to improve the mechanical and thermal properties of pure PET. The PET/KL and PETR/ML blends were produced with 0.5, 1, 3, and 5 wt.% of lignin via melt extrusion and injection molding. The produced blends and PETR were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TGA), differential scanning calorimetry (DSC) and mechanical properties testing. The FTIR measurements confirmed the chemical modifications of the ML samples, while the TGA results showed KL to be thermally more stable than ML. The glass transition temperature of PETR changed as a function of the amount of lignin, as revealed by the DSC measurements. The PET/KL blends demonstrated their potential for use as an engineering material due to their improved thermal and mechanical properties compared to those of PETR.
DOI: 10.6084/m9.figshare.12210581
title: Evaluation of antimicrobial action of silver composite microspheres based on styrene-divinylbenzene copolymer

description: Abstract This article reports the evaluation of the antimicrobial activity of a silver composite based on sulfonic resin. The antimicrobial action of the composite was evaluated against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus through plate, batch and colunm experiments. In batch studies, the efficiency of the composite was evaluated as a function of composite mass, bacterial concentration and contact time. We also developed a method to evaluate the antimicrobial activity of this composite using column tests. The antimicrobial activity of the composite was similar against the three bacteria in halo inhibition and batch experiments. The antibacterial activity was 100% against all bacteria above 0.20 g of composite and for all concentrations of bacteria studied. Column studies showed that the composite (1 g) had 100% action against 48 cm3 of S. aureus and 55 cm3 of E. coli and P. aeruginosa suspensions (105 cells mL-1, 50 cm3 min-1).
DOI: 10.6084/m9.figshare.12210581.v1
title: Evaluation of antimicrobial action of silver composite microspheres based on styrene-divinylbenzene copolymer

description: Abstract This article reports the evaluation of the antimicrobial activity of a silver composite based on sulfonic resin. The antimicrobial action of the composite was evaluated against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus through plate, batch and colunm experiments. In batch studies, the efficiency of the composite was evaluated as a function of composite mass, bacterial concentration and contact time. We also developed a method to evaluate the antimicrobial activity of this composite using column tests. The antimicrobial activity of the composite was similar against the three bacteria in halo inhibition and batch experiments. The antibacterial activity was 100% against all bacteria above 0.20 g of composite and for all concentrations of bacteria studied. Column studies showed that the composite (1 g) had 100% action against 48 cm3 of S. aureus and 55 cm3 of E. coli and P. aeruginosa suspensions (105 cells mL-1, 50 cm3 min-1).
DOI: 10.6084/m9.figshare.12210590.v1
title: Kraft lignin and polyethylene terephthalate blends: effect on thermal and mechanical properties

description: Abstract In this work, bottle-grade poly(ethylene terephthalate) (PETR), kraft lignin (KL), and chemically modified lignin (ML) were used to form blends to improve the mechanical and thermal properties of pure PET. The PET/KL and PETR/ML blends were produced with 0.5, 1, 3, and 5 wt.% of lignin via melt extrusion and injection molding. The produced blends and PETR were characterized by Fourier transform infrared spectroscopy (FTIR), thermogravimetry (TGA), differential scanning calorimetry (DSC) and mechanical properties testing. The FTIR measurements confirmed the chemical modifications of the ML samples, while the TGA results showed KL to be thermally more stable than ML. The glass transition temperature of PETR changed as a function of the amount of lignin, as revealed by the DSC measurements. The PET/KL blends demonstrated their potential for use as an engineering material due to their improved thermal and mechanical properties compared to those of PETR.
DOI: 10.6084/m9.figshare.12210593
title: Design of chitosan-alginate core-shell nanoparticules loaded with anacardic acid and cardol for drug delivery

description: Abstract Anacardic Acid (AA) and Cardol (CD) are the main constituents of the cashew nut shell liquid, which presented several biological activities. In this study, a 23 factorial experimental design was employed in order to evaluate the influence of the reaction conditions in the nanoencapsulation of AA and CD using Chitosan (CH), Alginate (ALG) and Arabic Gum matrices. The nanoparticles (NPs) with higher stability and encapsulation efficiency were those with ALG as an outer coating and with lower content of surfactant. The NPs presented nanometric size with 90% of the distribution ranging from 70 to 250 nm. The in vitro kinetics revealed that CH-ALG/AA and CH-ALG/CD NPs followed zero-order kinetics model, showing a significantly slow release rate, with values of 33% and 63%, respectively, after 240h. Particularly, CH-ALG/CD NPs presented higher inhibitory capacity for all strains of dermatophytes due to their release rate, with promising results for antimicrobial control.
DOI: 10.6084/m9.figshare.12210593.v1
title: Design of chitosan-alginate core-shell nanoparticules loaded with anacardic acid and cardol for drug delivery

description: Abstract Anacardic Acid (AA) and Cardol (CD) are the main constituents of the cashew nut shell liquid, which presented several biological activities. In this study, a 23 factorial experimental design was employed in order to evaluate the influence of the reaction conditions in the nanoencapsulation of AA and CD using Chitosan (CH), Alginate (ALG) and Arabic Gum matrices. The nanoparticles (NPs) with higher stability and encapsulation efficiency were those with ALG as an outer coating and with lower content of surfactant. The NPs presented nanometric size with 90% of the distribution ranging from 70 to 250 nm. The in vitro kinetics revealed that CH-ALG/AA and CH-ALG/CD NPs followed zero-order kinetics model, showing a significantly slow release rate, with values of 33% and 63%, respectively, after 240h. Particularly, CH-ALG/CD NPs presented higher inhibitory capacity for all strains of dermatophytes due to their release rate, with promising results for antimicrobial control.
DOI: 10.6084/m9.figshare.12210596
title: Synthesis of immobilized biocatalysts for wastewater decontamination

description: Abstract The use of biodegradable polymers arouses biotechnological interest. This use allows applications in health and environment. Here is present the characterization and a proposition for the use of cashew (Anacardium othonianum Rizz.) polysaccharide including peroxidase immobilization for wastewater bioremediation. From the cashew gum exudate, the polysaccharide was extracted by precipitation in ethanol at 4 °C. This material is able to immobilize Horseradish peroxidase by physical adsorption and via sodium periodate with 75% and 93% of efficiency, respectively. These systems have a storage and operational stability, and removed phenolic compounds above 50% in industrial effluent samples. The bioassays in the presence of Artemia salina and Allium cepa root not only revealed no toxicity to this polysaccharide, but also presented the ability to reduce the toxicity of the industrial effluent by 50%. Immobilized cashew polysaccharide complexes are potential alternatives for waste treatment and decontaminant agents for water treatment applications. The polysaccharide is a low-cost natural matrix for environmental-technological applications.
DOI: 10.6084/m9.figshare.12210596.v1
title: Synthesis of immobilized biocatalysts for wastewater decontamination

description: Abstract The use of biodegradable polymers arouses biotechnological interest. This use allows applications in health and environment. Here is present the characterization and a proposition for the use of cashew (Anacardium othonianum Rizz.) polysaccharide including peroxidase immobilization for wastewater bioremediation. From the cashew gum exudate, the polysaccharide was extracted by precipitation in ethanol at 4 °C. This material is able to immobilize Horseradish peroxidase by physical adsorption and via sodium periodate with 75% and 93% of efficiency, respectively. These systems have a storage and operational stability, and removed phenolic compounds above 50% in industrial effluent samples. The bioassays in the presence of Artemia salina and Allium cepa root not only revealed no toxicity to this polysaccharide, but also presented the ability to reduce the toxicity of the industrial effluent by 50%. Immobilized cashew polysaccharide complexes are potential alternatives for waste treatment and decontaminant agents for water treatment applications. The polysaccharide is a low-cost natural matrix for environmental-technological applications.
DOI: 10.6084/m9.figshare.12210584.v1
title: Design of a polymeric composite material femoral stem for hip joint implant

description: Abstract Hip joint prosthesis are structural components that still have some challenging problems such as the interaction of physical and biological properties between the stem and the human femur. Composite materials allow to obtain high strength structures with a large variety of modulus of elasticity and favorable characteristics in the context of orthopedic implants. Therefore, the objective of this work was the development of a prosthesis model with biopolymeric matrix, namely the polyurethane (PU) derived from castor oil, reinforced with fiberglass. The implants were made of pure PU, PU with fiberglass, and PU with glass fiber and calcium carbonate. The reinforcement was constructed in the form of a core to be inserted into the hip prosthesis. The core and stem prototypes were produced using three-dimensional printing techniques, and subsequently used in the manufacture of flexible silicone molds. The results showed good mechanical potentialities of this material for orthopedics applications.
DOI: 10.6084/m9.figshare.12210734.v1
title: Evaluation of commercial arrowroot starch/CMC film for buccal drug delivery of glipizide

description: Abstract In the present work, commercial arrowroot starch (AR starch) has been successfully used as a base material with sodium salt of carboxy methyl cellulose (CMC) for buccal drug delivery system. Different ratio of CMC and AR starch has been prepared with constant ratio of drug. In our study, glipizide has been used as the drug for controlled drug delivery through buccal mucosa. Films were cast by solution casting method with glycerol as plasticizer. All the films were characterized for thickness, swelling index, moisture content, relative pH, drug content uniformity, compatibility of polymer and drug, surface morphology of films, muco adhesive property and in-vitro drug release study. Formulation F3 shows a residence time of 140 minutes with good mucoadhesive property, compatibility within polymers, drug content uniformity of 100 ± 6.0% and a controlled drug release among all the ratios.
DOI: 10.6084/m9.figshare.12210749
title: Mechanical characterization of HDPE reinforced with cellulose from rice husk biomass

description: Abstract High-density polyethylene (HDPE) reinforced with cellulose from rice husk (RH) were prepared and studied. The RH biomass was submitted to acid extraction and bleaching process and then analyzed for its cellulose extraction efficiency by X-ray diffraction (XRD) and Fourier transformation infrared spectroscopy (FTIR). After that, the RH cellulose (RHC) was incorpored to the HDPE matrix by melt blending with different filler contents (5, 10 and 15 wt%), and then characterized in terms of mechanical properties and morphology. The RHC incorporation in the HDPE matrix resulted in an increase in elastic modulus regardless the filler content added; also, the impact resistance was maintained for RHC contents up to 10%. The morphological analysis of the composites showed that the cellulose was well dispersed in the matrix, which contributed to the improvement of the final rigidity of these materials, indicating the feasibility of incorporating this residue in the production of HDPE composites.