cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5816157.v1
title: THE USE OF ENGLISH EDUCATIONAL PORTALS IN ESP TEACHING AND LEARNING

description: ABSTRACT: Besides reading and writing, the learning and development of listening and speaking skills have affected and worried a great number of learners, especially in the ESP context. Some studies have focused their attention on finding these difficulties and proposing solutions that can perhaps minimize these problems. Aiming to contribute to the debate, this study investigates listening and speaking activities displayed in five English educational portals with the objective of identifying what kind of pedagogical tasks and exercises are suggested and their textual configuration in the digital context. The results revealed that the majority of activities can be considered as additional instructional materials which can be used in the classroom because of the relevant issues presented. However, to be used directly in the digital context these activities need to be reformulated and adapted to allow teachers and learners to use all the technological resources in an effective and functional way.
DOI: 10.6084/m9.figshare.5816154
title: Experimental Multi-scale analysis of Carbon/Epoxy Composites Nano-Reinforced by Carbon Nanotubes/Multi-layer Graphene

description: Nano-size structures, nanotubes/multi-layer graphene (CNT/MLG), were dispersed into epoxy system by a combination of sonication and high shear mixing. To avoid CNT/MLG agglomeration, a non-covalent functionalization were performed using surfactants, CO890 - Polyoxyethylene (40) nonylphenyl ether and SDBS - sodium dodecyl benzene sulfonate. Raman spectroscopy and Fourier transformed Infra-red analysis indicated that CO890-MLG and SDBS-CNT have strong chemical interactions. Atomic force microscopy revealed formation of "spike-like" nanostructures for SDBS-CNT combination and "wall-like" nano-shape structures for the CO890-MLG ones. Tensile tests data indicate no significant change on stiffness. In average, the ultimate stress increased around 18%, while toughness had an improvement close to 62%. SDBS-CNT and CO890-MLG at small concentrations (0.075 wt. %) are probably the best options for nano-reinforcement of carbon/epoxy composites.
DOI: 10.6084/m9.figshare.5816154.v1
title: Experimental Multi-scale analysis of Carbon/Epoxy Composites Nano-Reinforced by Carbon Nanotubes/Multi-layer Graphene

description: Nano-size structures, nanotubes/multi-layer graphene (CNT/MLG), were dispersed into epoxy system by a combination of sonication and high shear mixing. To avoid CNT/MLG agglomeration, a non-covalent functionalization were performed using surfactants, CO890 - Polyoxyethylene (40) nonylphenyl ether and SDBS - sodium dodecyl benzene sulfonate. Raman spectroscopy and Fourier transformed Infra-red analysis indicated that CO890-MLG and SDBS-CNT have strong chemical interactions. Atomic force microscopy revealed formation of "spike-like" nanostructures for SDBS-CNT combination and "wall-like" nano-shape structures for the CO890-MLG ones. Tensile tests data indicate no significant change on stiffness. In average, the ultimate stress increased around 18%, while toughness had an improvement close to 62%. SDBS-CNT and CO890-MLG at small concentrations (0.075 wt. %) are probably the best options for nano-reinforcement of carbon/epoxy composites.
DOI: 10.6084/m9.figshare.5816151
title: Debris extrusion and foraminal deformation produced by reciprocating instruments made of thermally treated NiTi wires

description: Abstract Objective To evaluate the amount of apically extruded debris, percentage of foraminal enlargement and apical foramen (AF) deformation that occurred during root canal preparation with different reciprocation systems: Reciproc, WaveOne (M-Wire), and ProDesign R (Shape Memory Technology Wire) at two different working lengths (WLs): 0.0 and 1.0 mm beyond the AF. Material and methods The AF of 120 root canals in 60 mesial roots of mandibular molars were photographed with stereomicroscope and randomly assigned into four groups: manual, Reciproc (REC), WaveOne (WO), and ProDesign R (PDR); subsequently, they were further subdivided according to the WL (n=15). Teeth were instrumented, coupled to a dual collecting chamber, and then another photograph of each AF was captured. Extrusion was analysed by determining the weight of extruded debris. Each AF diameter was measured in pre- and post-instrumentation images to determine deformation, which was analysed, and afterwards the final format of AFs was classified (circular/oval/deformed). Results We found no significant differences when analysing each system at different WLs. When considering each WL, REC and WO showed highest extrusion values (P
DOI: 10.6084/m9.figshare.5816148
title: BELIEFS OF TEACHERS ABOUT GRADE RETENTION

description: Abstract: This article aims to analyze the beliefs of basic education teachers about grade retention. To that end, it discusses possible relations between beliefs about grade retention, beliefs about justice and evaluation principles, and teachers’ knowledge about the findings of research on the effects of grade retention. We also present teacher profile characteristics that can influence teacher adhesion to grade retention. The relationship between the beliefs mentioned, and between them and knowledge of research, was analyzed by correlation and the identification of characteristics associated with retention was done by regression analysis. We used primary data concerning almost 5.5 thousand teachers that teach Portuguese Language. We found that teachers who adhere to retention tend to also adhere to a meritocratic principle of justice and to normative assessment. Having more experience in teaching, not teaching in initial years of basic education, a greater knowledge of research of the subject, and holding a Master’s or a Ph. D. degree characterize the teachers who are less likely to agree with grade retention.
DOI: 10.6084/m9.figshare.5816148.v1
title: BELIEFS OF TEACHERS ABOUT GRADE RETENTION

description: Abstract: This article aims to analyze the beliefs of basic education teachers about grade retention. To that end, it discusses possible relations between beliefs about grade retention, beliefs about justice and evaluation principles, and teachers’ knowledge about the findings of research on the effects of grade retention. We also present teacher profile characteristics that can influence teacher adhesion to grade retention. The relationship between the beliefs mentioned, and between them and knowledge of research, was analyzed by correlation and the identification of characteristics associated with retention was done by regression analysis. We used primary data concerning almost 5.5 thousand teachers that teach Portuguese Language. We found that teachers who adhere to retention tend to also adhere to a meritocratic principle of justice and to normative assessment. Having more experience in teaching, not teaching in initial years of basic education, a greater knowledge of research of the subject, and holding a Master’s or a Ph. D. degree characterize the teachers who are less likely to agree with grade retention.
DOI: 10.6084/m9.figshare.5816145
title: Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)

description: ABSTRACT Sacha inchi (Plukenetia volubilis) is a plant native to the Peruvian Amazon with seeds that contain 24 to 29% protein, and levels of vitamin A and E and omega 3 polyunsaturated fatty acids that are suitable for fish nutrition. Thus, this study aimed to evaluate the use of sacha inchi seeds as an ingredient in the diets of tambaqui (Colossoma macropomum) and matrinxã (Brycon amazonicus). The acceptance and effect of three levels of sacha inchi seed meal (0, 15 and 30%) in fish feed was evaluated in a randomized experiment, testing groups of 12 juvenile tambaquis (29.8 ± 1.0 g, 11.0 ± 1.4 cm) and groups of eight juvenile matrinxãs (34.8 ± 1.3 g, 13.7 ± 1.0 cm). Growth performance and body composition of the fish were determined at the end of the experiment. An effect of the sacha inchi diet was only observed for feed conversion of tambaquis, which was worst at the highest level of sacha inchi seed. In conclusion, sacha inchi can be added to feed juvenile tambaquis at a level of 15%, and juvenile matrinxãs at 30% without compromising growth performance and body parameters of the fish.
DOI: 10.6084/m9.figshare.5816145.v1
title: Seeds of sacha inchi (Plukenetia volubilis, Euphorbiaceae) as a feed ingredient for juvenile tambaqui, Colossoma macropomum, and matrinxã, Brycon amazonicus (Characidae)

description: ABSTRACT Sacha inchi (Plukenetia volubilis) is a plant native to the Peruvian Amazon with seeds that contain 24 to 29% protein, and levels of vitamin A and E and omega 3 polyunsaturated fatty acids that are suitable for fish nutrition. Thus, this study aimed to evaluate the use of sacha inchi seeds as an ingredient in the diets of tambaqui (Colossoma macropomum) and matrinxã (Brycon amazonicus). The acceptance and effect of three levels of sacha inchi seed meal (0, 15 and 30%) in fish feed was evaluated in a randomized experiment, testing groups of 12 juvenile tambaquis (29.8 ± 1.0 g, 11.0 ± 1.4 cm) and groups of eight juvenile matrinxãs (34.8 ± 1.3 g, 13.7 ± 1.0 cm). Growth performance and body composition of the fish were determined at the end of the experiment. An effect of the sacha inchi diet was only observed for feed conversion of tambaquis, which was worst at the highest level of sacha inchi seed. In conclusion, sacha inchi can be added to feed juvenile tambaquis at a level of 15%, and juvenile matrinxãs at 30% without compromising growth performance and body parameters of the fish.
DOI: 10.6084/m9.figshare.5816142
title: The influence of sex ratio on the reproduction of pirarucu, Arapaima gigas, in captivity

description: ABSTRACT Because sex ratio in the broodstock can influence the reproductive behaviour of a species, the influence of sex ratio on the reproductive success of pirarucu, Arapaima gigas, in captivity was assessed. Pirarucu breeders were stocked in 0.10-0.13 ha earthen ponds at three sex ratios in quadruplicate: one male to one female (1M1F); one male to two females (1M2F); and two males to one female (2M1F). Eight spawning events occurred, seven of them with the 1M1F sex ratio, which was the most successful of the three tested sex ratios.
DOI: 10.6084/m9.figshare.12894668.v1
title: R0191_20171006a_videos

description: Rat 0191, skilled reaching data collected in Leventhal laboratory by Alexandra Bova
DOI: 10.6084/m9.figshare.5816142.v1
title: The influence of sex ratio on the reproduction of pirarucu, Arapaima gigas, in captivity

description: ABSTRACT Because sex ratio in the broodstock can influence the reproductive behaviour of a species, the influence of sex ratio on the reproductive success of pirarucu, Arapaima gigas, in captivity was assessed. Pirarucu breeders were stocked in 0.10-0.13 ha earthen ponds at three sex ratios in quadruplicate: one male to one female (1M1F); one male to two females (1M2F); and two males to one female (2M1F). Eight spawning events occurred, seven of them with the 1M1F sex ratio, which was the most successful of the three tested sex ratios.
DOI: 10.6084/m9.figshare.5816139
title: Psychopathological profile and quality of life of patients with oral lichen planus

description: Abstract Objectives Oral lichen planus (OLP) is a chronic, multifocal, sometimes painful, inflammatory disease of the oral mucosa. OLP can predispose development of psycho-emotional disorders. Until now, the relationship between the severity of lichen planus and the psychological profile of patients (psychological well-being, perceived stress and pain coping strategies) has never been studied. Material and Methods Study was conducted on 42 OLP patients. Number of sites involved, severity and activity score of OLP were evaluated. Psychological tests were used to evaluate patients’ psycho-emotional condition. The mean duration time of symptomatic OLP was 43 months. Results We detected that the longer the duration of subjective symptoms, the poorer the quality of life and the higher the level of perceived stress (PSS). Also, the higher the PSS results, the greater the anxiety and depression on Hospital Anxiety and Depression Scale (HADS). Likewise, higher level of depression in HADS was strongly correlated with worse quality of life. (p≤0.05). Conclusions In this study, we detected a relationship between duration of the disease, level of perceived stress and quality of life. The longer the disease lasts, the higher it tends to catastrophize. This may influence development or increase of the anxiety and depression and may decrease patients’ quality of life.
DOI: 10.6084/m9.figshare.5816139.v1
title: Psychopathological profile and quality of life of patients with oral lichen planus

description: Abstract Objectives Oral lichen planus (OLP) is a chronic, multifocal, sometimes painful, inflammatory disease of the oral mucosa. OLP can predispose development of psycho-emotional disorders. Until now, the relationship between the severity of lichen planus and the psychological profile of patients (psychological well-being, perceived stress and pain coping strategies) has never been studied. Material and Methods Study was conducted on 42 OLP patients. Number of sites involved, severity and activity score of OLP were evaluated. Psychological tests were used to evaluate patients’ psycho-emotional condition. The mean duration time of symptomatic OLP was 43 months. Results We detected that the longer the duration of subjective symptoms, the poorer the quality of life and the higher the level of perceived stress (PSS). Also, the higher the PSS results, the greater the anxiety and depression on Hospital Anxiety and Depression Scale (HADS). Likewise, higher level of depression in HADS was strongly correlated with worse quality of life. (p≤0.05). Conclusions In this study, we detected a relationship between duration of the disease, level of perceived stress and quality of life. The longer the disease lasts, the higher it tends to catastrophize. This may influence development or increase of the anxiety and depression and may decrease patients’ quality of life.
DOI: 10.6084/m9.figshare.5816130
title: A New Route to Synthesize MnSe Thin Films by Chemical Bath Deposition Method

description: Manganese selenide (MnSe) crystalline thin film was produced with chemical bath deposition on substrates (commercial glass). Transmittance, absorption, optical band gap and refractive index were investigated by UV/VIS spectrum. The hexagonal form was observed in the structural properties in XRD. The structural and optical properties of the MnSe thin films were analyzed at different pHs. SEM and EDX analysis were used for the surface analysis in the films. The films had the best crystalline at pH: 9. At pHs of 11 and 10 the MnSeO4 structure was observed. The films with the lowest film thickness were found in baths prepared with pH: 11. The highest refractive index was observed in films produced with a pH of 10 at a film density of 1.96. The grain size of MnSe thin films has a higher value at pH: 9.
DOI: 10.6084/m9.figshare.5816130.v1
title: A New Route to Synthesize MnSe Thin Films by Chemical Bath Deposition Method

description: Manganese selenide (MnSe) crystalline thin film was produced with chemical bath deposition on substrates (commercial glass). Transmittance, absorption, optical band gap and refractive index were investigated by UV/VIS spectrum. The hexagonal form was observed in the structural properties in XRD. The structural and optical properties of the MnSe thin films were analyzed at different pHs. SEM and EDX analysis were used for the surface analysis in the films. The films had the best crystalline at pH: 9. At pHs of 11 and 10 the MnSeO4 structure was observed. The films with the lowest film thickness were found in baths prepared with pH: 11. The highest refractive index was observed in films produced with a pH of 10 at a film density of 1.96. The grain size of MnSe thin films has a higher value at pH: 9.
DOI: 10.6084/m9.figshare.5816127
title: ANALYSIS OF SUPER NOTÍCIA POPULAR NEWSPAPER THROUGH A CRITICAL AND MULTIMODAL PERSPECTIVE

description: ABSTRACT: This article aims to analyse, through the Critical Discourse Analysis and a Multimodal perspective, two front-pages of Super Notícia, a popular newspaper, to identify the relationship between the linguistic and image choices and the ideologies, hegemonies and persuasion strategies used by the newspaper's producers in search for interaction and acceptance of the product by the target audience. The analysis is based on linguistic aspects, passing through the image aspects until it reaches the explicit or implicit ideologies contained in the newspaper's front-page speech. “Critical Analysis” implies showing implicit connections and causes, since the relations between the discursive, social and cultural choices are not always transparent. The results show that, through discursive strategies, such as democratization and technologization, the newspaper seeks to persuade its audience and sell the product. Moreover, the images are used for the maintenance of practices and ideologies concerning gender, hegemony preservation and maintenance of some stereotypes.
DOI: 10.6084/m9.figshare.5816127.v1
title: ANALYSIS OF SUPER NOTÍCIA POPULAR NEWSPAPER THROUGH A CRITICAL AND MULTIMODAL PERSPECTIVE

description: ABSTRACT: This article aims to analyse, through the Critical Discourse Analysis and a Multimodal perspective, two front-pages of Super Notícia, a popular newspaper, to identify the relationship between the linguistic and image choices and the ideologies, hegemonies and persuasion strategies used by the newspaper's producers in search for interaction and acceptance of the product by the target audience. The analysis is based on linguistic aspects, passing through the image aspects until it reaches the explicit or implicit ideologies contained in the newspaper's front-page speech. “Critical Analysis” implies showing implicit connections and causes, since the relations between the discursive, social and cultural choices are not always transparent. The results show that, through discursive strategies, such as democratization and technologization, the newspaper seeks to persuade its audience and sell the product. Moreover, the images are used for the maintenance of practices and ideologies concerning gender, hegemony preservation and maintenance of some stereotypes.
DOI: 10.6084/m9.figshare.5816124
title: Predictors of Total Mortality and Echocardiographic Response for Cardiac Resynchronization Therapy: A Cohort Study

description: Abstract Background: Clinical studies demonstrate that up to 40% of patients do not respond to cardiac resynchronization therapy (CRT), thus, appropriate patient selection is critical to the success of CRT in heart failure. Objective: Evaluation of mortality predictors and response to CRT in the Brazilian scenario. Methods: Retrospective cohort study including patients submitted to CRT in a tertiary hospital in southern Brazil from 2008 to 2014. Survival was assessed through a database of the State Department of Health (RS). Predictors of echocardiographic response were evaluated using Poisson regression. Survival analysis was performed by Cox regression and Kaplan Meyer curves. A two-tailed p value less than 0.05 was considered statistically significant. Results: A total of 170 patients with an average follow-up of 1011 ± 632 days were included. The total mortality was 30%. The independent predictors of mortality were age (hazard ratio [HR] of 1.05, p = 0.027), previous acute myocardial infarction (AMI) (HR of 2.17, p = 0.049) and chronic obstructive pulmonary disease (COPD) (HR of 3.13, p = 0.015). The percentage of biventricular stimulation at 6 months was identified as protective factor of mortality ([HR] 0.97, p = 0.048). The independent predictors associated with the echocardiographic response were absence of mitral insufficiency, presence of left bundle branch block and percentage of biventricular stimulation. Conclusion: Mortality in patients submitted to CRT in a tertiary hospital was independently associated with age, presence of COPD and previous AMI. The percentage of biventricular pacing evaluated 6 months after resynchronizer implantation was independently associated with improved survival and echocardiographic response.
DOI: 10.6084/m9.figshare.5816124.v1
title: Predictors of Total Mortality and Echocardiographic Response for Cardiac Resynchronization Therapy: A Cohort Study

description: Abstract Background: Clinical studies demonstrate that up to 40% of patients do not respond to cardiac resynchronization therapy (CRT), thus, appropriate patient selection is critical to the success of CRT in heart failure. Objective: Evaluation of mortality predictors and response to CRT in the Brazilian scenario. Methods: Retrospective cohort study including patients submitted to CRT in a tertiary hospital in southern Brazil from 2008 to 2014. Survival was assessed through a database of the State Department of Health (RS). Predictors of echocardiographic response were evaluated using Poisson regression. Survival analysis was performed by Cox regression and Kaplan Meyer curves. A two-tailed p value less than 0.05 was considered statistically significant. Results: A total of 170 patients with an average follow-up of 1011 ± 632 days were included. The total mortality was 30%. The independent predictors of mortality were age (hazard ratio [HR] of 1.05, p = 0.027), previous acute myocardial infarction (AMI) (HR of 2.17, p = 0.049) and chronic obstructive pulmonary disease (COPD) (HR of 3.13, p = 0.015). The percentage of biventricular stimulation at 6 months was identified as protective factor of mortality ([HR] 0.97, p = 0.048). The independent predictors associated with the echocardiographic response were absence of mitral insufficiency, presence of left bundle branch block and percentage of biventricular stimulation. Conclusion: Mortality in patients submitted to CRT in a tertiary hospital was independently associated with age, presence of COPD and previous AMI. The percentage of biventricular pacing evaluated 6 months after resynchronizer implantation was independently associated with improved survival and echocardiographic response.