cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5861793.v1
title: MEDIATION BETWEEN THE SECONDARY SCHOOL AND THE WORKING WORLD IN TECHNICIANS TRAINING IN BRAZIL

description: Abstract This paper analyzes the mediation between the school and the employment market in the mid-level technical training in Brazilian teaching institutions belonging to the Rede Federal de Educação Profissional, Científica e Tecnológica that materializes mainly through supervised internship activities. The paper's goal is to explain to what extent the mediation between school and employment market has been perverted by market logic, shifting the supervised internship activities of the teaching field to the field of workforce intermediation, giving it precarious job character. This is a basic research, developed by qualitative analysis, pointing as a result the distinction of conceptions and practices internship supervised in two categories. The first categorie is inserted in the pragmatic training perspective and another which is inserted in the omnilateral training perspective. The author points out the predominance of the pragmatic prospect of training in actions and conceptions of mediation between school and the employment market, which corrupts the internship activities supervised, giving it characteristics of precarious work.
DOI: 10.6084/m9.figshare.5861790
title: The Effect of Two Teaching Approaches on the Italian as a Foreign Language Learners’ Written Production

description: ABSTRACT This paper analyzes the written production of two groups of Italian as a foreign language (ItFL) learners in order to relate their performance to the teaching approach they were exposed to. The first group received explicit instruction on two structures: presente dell’indicativo and passato prossimo, while the second group received implicit instruction with a set of communicative activities containing input flood combined with enhancement of the target structures. Teaching units were designed to meet each approach. The data were collected through pre- and post-tests, and the writing activities from the teaching units. The results showed distinct advantages for each group.
DOI: 10.6084/m9.figshare.5861790.v1
title: The Effect of Two Teaching Approaches on the Italian as a Foreign Language Learners’ Written Production

description: ABSTRACT This paper analyzes the written production of two groups of Italian as a foreign language (ItFL) learners in order to relate their performance to the teaching approach they were exposed to. The first group received explicit instruction on two structures: presente dell’indicativo and passato prossimo, while the second group received implicit instruction with a set of communicative activities containing input flood combined with enhancement of the target structures. Teaching units were designed to meet each approach. The data were collected through pre- and post-tests, and the writing activities from the teaching units. The results showed distinct advantages for each group.
DOI: 10.6084/m9.figshare.5861784
title: Integrated furfural and first generation bioethanol production: process simulation and techno-economic analysis

description: Abstract Furfural is a base chemical with a wide range of applications and with a great opportunity for market growth in the near term. Derived from biomass, its production may be incorporated to the Brazilian chemical industry using sugarcane bagasse as feedstock. In this context, the integration of a furfural plant to a first generation bioethanol facility, within the biorefinery concept, was simulated considering different scenarios compared to an autonomous bioethanol distillery. The economic analysis of the different scenarios showed that the revenues from furfural commercialization increase the internal rate of return of the project for maximum furfural production (22.0%) in comparison to a conventional ethanol distillery (13.5%), despite the decrease in electricity output. Moreover, the economic analysis of the results pointed out the possibility of lowering furfural prices to levels that could lead to its use as a precursor for biofuels.
DOI: 10.6084/m9.figshare.5861784.v1
title: Integrated furfural and first generation bioethanol production: process simulation and techno-economic analysis

description: Abstract Furfural is a base chemical with a wide range of applications and with a great opportunity for market growth in the near term. Derived from biomass, its production may be incorporated to the Brazilian chemical industry using sugarcane bagasse as feedstock. In this context, the integration of a furfural plant to a first generation bioethanol facility, within the biorefinery concept, was simulated considering different scenarios compared to an autonomous bioethanol distillery. The economic analysis of the different scenarios showed that the revenues from furfural commercialization increase the internal rate of return of the project for maximum furfural production (22.0%) in comparison to a conventional ethanol distillery (13.5%), despite the decrease in electricity output. Moreover, the economic analysis of the results pointed out the possibility of lowering furfural prices to levels that could lead to its use as a precursor for biofuels.
DOI: 10.6084/m9.figshare.5861778
title: Impacts of climate change on drought: changes to drier conditions at the beginning of the crop growing season in southern Brazil

description: ABSTRACT The intensification of drought incidence is one of the most important threats of the 21st century with significant effects on food security. Accordingly, there is a need to improve the understanding of the regional impacts of climate change on this hazard. This study assessed long-term trends in probability-based drought indices (Standardized Precipitation Index and Standardized Evapotranspiration Index) in the State of São Paulo, Brazil. Owing to the multi-scalar nature of both indices, the analyses were performed at 1 to 12-month time scales. The indices were calculated by means of a relativist approach that allowed us to compare drought conditions from different periods. The years 1961-1990 were used as the referential period. To the authors’ best knowledge, this is the first time that such relativist approach is used in historical trend analysis. The results suggest that the evapotranspiration rates have intensified the regional drought conditions. The time scale used to calculate the indices significantly affected the outcomes of drought trend assessments. The reason behind this feature is that the significant changes in the monthly regional patterns are limited to a specific period of the year. More specifically, virtually all significant changes have been observed during the first trimester of the rainy season (October, November and December). Considering that this period corresponds to critical plant growth stages (flowering/regrowth/sprouting) of several major crops (e.g. Sugarcane and Citrus), we may conclude that these significant changes have increased the risk of crop yield reductions due to agricultural drought.
DOI: 10.6084/m9.figshare.5861769
title: Free Damped Vibration of Rotating Truncated Conical Sandwich Shells Using an Improved High-Order Theory

description: Abstract In the present paper, an improved high-order theory is employed to study the free vibration of rotating truncated sandwich conical shells with laminated face sheets and a soft core. The formulation is based on a three-layer sandwich model. First-order shear deformation theory (FSDT) is used for face sheets and quadratic and cubic functions are assumed for transverse and in-plane displacements of the core, respectively. The governing equations of motion are derived according to the Hamilton’s principle. Also, continuity conditions of the displacements at the interfaces, as well as transverse flexibility, transverse normal strain and stress of the core have been considered. Analytical solution for free vibration of simply supported sandwich conical shells is presented using Galerkin’s method. Effect of some geometrical parameters is also studied on the fundamental frequency of the sandwich shells. Comparison of the present results with those in the literature confirms the accuracy of the proposed theory.
DOI: 10.6084/m9.figshare.5861769.v1
title: Free Damped Vibration of Rotating Truncated Conical Sandwich Shells Using an Improved High-Order Theory

description: Abstract In the present paper, an improved high-order theory is employed to study the free vibration of rotating truncated sandwich conical shells with laminated face sheets and a soft core. The formulation is based on a three-layer sandwich model. First-order shear deformation theory (FSDT) is used for face sheets and quadratic and cubic functions are assumed for transverse and in-plane displacements of the core, respectively. The governing equations of motion are derived according to the Hamilton’s principle. Also, continuity conditions of the displacements at the interfaces, as well as transverse flexibility, transverse normal strain and stress of the core have been considered. Analytical solution for free vibration of simply supported sandwich conical shells is presented using Galerkin’s method. Effect of some geometrical parameters is also studied on the fundamental frequency of the sandwich shells. Comparison of the present results with those in the literature confirms the accuracy of the proposed theory.
DOI: 10.6084/m9.figshare.5861763
title: Multi-objective Optimization of Supercritical Water Gasification of Leftover Brazilian Ginseng Roots After Phytochemical Recovery Steps

description: Abstract The present study aims at studying the supercritical water gasification (SCWG) of leftover Brazilian ginseng roots after phytochemicals extraction for synthetic natural gas (SNG) production, envisioning the development of a promising Brazilian ginseng roots valorization using sub/supercritical fluids in different steps. A multi-objective energetic-economic-environmental optimization of the proposed SCWG process was assessed through the use of computational simulation tools. The results showed that, for a given leftover biomass input of 20MW, a specific cost of 62-66 USD/MWh of SNG is obtained, which is higher than the average price on the Brazilian market. On the other hand, the production process of SNG from this residue showed to be a promising option, being energetically self-sufficient and environmentally friendly. In order for this alternative process to become more economically attractive we proposed the construction of the SCWG and the sub/supercritical extraction units in the same location, sharing part of the same high-pressure equipment.
DOI: 10.6084/m9.figshare.5861763.v1
title: Multi-objective Optimization of Supercritical Water Gasification of Leftover Brazilian Ginseng Roots After Phytochemical Recovery Steps

description: Abstract The present study aims at studying the supercritical water gasification (SCWG) of leftover Brazilian ginseng roots after phytochemicals extraction for synthetic natural gas (SNG) production, envisioning the development of a promising Brazilian ginseng roots valorization using sub/supercritical fluids in different steps. A multi-objective energetic-economic-environmental optimization of the proposed SCWG process was assessed through the use of computational simulation tools. The results showed that, for a given leftover biomass input of 20MW, a specific cost of 62-66 USD/MWh of SNG is obtained, which is higher than the average price on the Brazilian market. On the other hand, the production process of SNG from this residue showed to be a promising option, being energetically self-sufficient and environmentally friendly. In order for this alternative process to become more economically attractive we proposed the construction of the SCWG and the sub/supercritical extraction units in the same location, sharing part of the same high-pressure equipment.
DOI: 10.6084/m9.figshare.5861754
title: Growth and gas exchanges of arugula plants under silicon fertilization and water restriction

description: ABSTRACT The objective of this article was to study the growth and gas exchange of arugula plants under silicon (Si) fertilization and water stress. The experiment was installed in a greenhouse, located in the municipality of Pombal, PB, Brazil, whose geographic coordinates are 6º 46 ‘S latitude and 37º 49’ W longitude and 178 m of altitude, situated in the 'Sertão Paraibano' micro-region. The experimental design was in randomized blocks, in 5 x 2 factorial scheme, corresponding to five Si doses (0, 50, 100, 150 and 200 mg L-1) and two irrigation depths [50 and 100% of real evapotranspiration (ETr) based on weighing lysimeter], with four replicates. Silicon application was performed as foliar spray, using a commercial product composed of 0.75% Si and 0.15% Mo. Arugula growth and gas exchange was evaluated. Higher values for number of leaves and plant height were obtained in plants cultivated under 100% ETr. Silicon application between 100 and 120 mg L-1 led to better results in the physiological variables of arugula plants under water stress. Silicon application between 30 and 60 mg L-1 in arugula plants under 100% ETr irrigation allowed greater phytomass accumulation.
DOI: 10.6084/m9.figshare.5861754.v1
title: Growth and gas exchanges of arugula plants under silicon fertilization and water restriction

description: ABSTRACT The objective of this article was to study the growth and gas exchange of arugula plants under silicon (Si) fertilization and water stress. The experiment was installed in a greenhouse, located in the municipality of Pombal, PB, Brazil, whose geographic coordinates are 6º 46 ‘S latitude and 37º 49’ W longitude and 178 m of altitude, situated in the 'Sertão Paraibano' micro-region. The experimental design was in randomized blocks, in 5 x 2 factorial scheme, corresponding to five Si doses (0, 50, 100, 150 and 200 mg L-1) and two irrigation depths [50 and 100% of real evapotranspiration (ETr) based on weighing lysimeter], with four replicates. Silicon application was performed as foliar spray, using a commercial product composed of 0.75% Si and 0.15% Mo. Arugula growth and gas exchange was evaluated. Higher values for number of leaves and plant height were obtained in plants cultivated under 100% ETr. Silicon application between 100 and 120 mg L-1 led to better results in the physiological variables of arugula plants under water stress. Silicon application between 30 and 60 mg L-1 in arugula plants under 100% ETr irrigation allowed greater phytomass accumulation.
DOI: 10.6084/m9.figshare.5861751
title: Growth, water use and efficiency of forage cactus sorghum intercropping under different water depths

description: ABSTRACT The effects of the forage cactus sorghum configuration and different irrigation depths on the growth, water use and efficiency of the forage cactus production system were investigated in this study. The experiment was conducted in the municipality of Serra Talhada, Pernambuco State, Brazil, between the years 2012 and 2013. Forage cactus was distributed in randomized blocks with factorial scheme and four replicates, in split plots (5 x 2), with five irrigation depths (0, 8.75, 17.5, 26.25 and 35% of the reference evapotranspiration, ET0) and two cropping systems (forage cactus monocropping and forage cactus sorghum intercropping). Crop evapotranspiration was calculated through soil water balance. The ratio between crop and reference evapotranspiration, and land use and water use efficiencies, were estimated. Irrigation depths and the intercropping affected only forage cactus canopy width and cladode biomass. The ratio between crop and reference evapotranspiration increased with the increase of irrigation depths, while the highest water use efficiency based on dry matter occurred at irrigation depths higher than 1,096 mm year-1 in the intercropping (21.8 ± 6.8 kg ha-1 mm-1). Irrigation depths did not affect land use efficiency (0.83). Water depths from 1,096 to 1,202 mm year-1 are recommended in the forage cactus sorghum system.
DOI: 10.6084/m9.figshare.5861751.v1
title: Growth, water use and efficiency of forage cactus sorghum intercropping under different water depths

description: ABSTRACT The effects of the forage cactus sorghum configuration and different irrigation depths on the growth, water use and efficiency of the forage cactus production system were investigated in this study. The experiment was conducted in the municipality of Serra Talhada, Pernambuco State, Brazil, between the years 2012 and 2013. Forage cactus was distributed in randomized blocks with factorial scheme and four replicates, in split plots (5 x 2), with five irrigation depths (0, 8.75, 17.5, 26.25 and 35% of the reference evapotranspiration, ET0) and two cropping systems (forage cactus monocropping and forage cactus sorghum intercropping). Crop evapotranspiration was calculated through soil water balance. The ratio between crop and reference evapotranspiration, and land use and water use efficiencies, were estimated. Irrigation depths and the intercropping affected only forage cactus canopy width and cladode biomass. The ratio between crop and reference evapotranspiration increased with the increase of irrigation depths, while the highest water use efficiency based on dry matter occurred at irrigation depths higher than 1,096 mm year-1 in the intercropping (21.8 ± 6.8 kg ha-1 mm-1). Irrigation depths did not affect land use efficiency (0.83). Water depths from 1,096 to 1,202 mm year-1 are recommended in the forage cactus sorghum system.
DOI: 10.6084/m9.figshare.5861739
title: The effects of subcutaneous injection of nicotine on osseointegration of machined and anodized implants in rabbits

description: Abstract Purpose: To evaluate the influence of subcutaneous injection nicotine in osseointegration process on different implant surfaces. Methods: Twenty-two male rabbits were distributed into two groups according to the subcutaneous injections: (1) nicotine 3 mg/day/kg and (2) 0.9 % NaCI 3 mL/day/kg, three times a day; subgroups were then designated-machined and anodized implants were placed in the right and left tibia bones, respectively. The animals were submitted euthanasia after periods of eight weeks to determine nicotine and cotinine levels, alkaline phosphatase and biomechanical analysis. Results: The plasmatic levels of nicotine and cotinine were 0.5 ± 0.28 ng/mL and 9.5 ± 6.51 ng/mL, respectively. The alkaline phosphatase analyses in blood levels in control group were observed 40.8 ± 11.88 UI/L and 40.75 ± 12.46 UI/L, for the surfaces machined and anodized, respectively. In the test group was observed levels 37.9 ± 4.84 UI/L, for both implant surfaces. No significant differences were observed between control and test groups and between the implant surfaces regarding alkaline phosphatase blood levels. For biomechanics, no significant differences were observed in control group between the machined (25±8.46 Ncm) or anodized (31.2 ± 6.76 Ncm) implants. However, the treatment with nicotine induced higher torque than control in both machined (38.3 ± 13.52 Ncm) and anodized (35.5 ± 14.17 Ncm) implants, with p = 0.0024 and p = 0.0121, respectively. Conclusion: Subcutaneous injection of nicotine following implant insertion didn’t have effect on osseointegration, independently from the implant surface.
DOI: 10.6084/m9.figshare.5861739.v1
title: The effects of subcutaneous injection of nicotine on osseointegration of machined and anodized implants in rabbits

description: Abstract Purpose: To evaluate the influence of subcutaneous injection nicotine in osseointegration process on different implant surfaces. Methods: Twenty-two male rabbits were distributed into two groups according to the subcutaneous injections: (1) nicotine 3 mg/day/kg and (2) 0.9 % NaCI 3 mL/day/kg, three times a day; subgroups were then designated-machined and anodized implants were placed in the right and left tibia bones, respectively. The animals were submitted euthanasia after periods of eight weeks to determine nicotine and cotinine levels, alkaline phosphatase and biomechanical analysis. Results: The plasmatic levels of nicotine and cotinine were 0.5 ± 0.28 ng/mL and 9.5 ± 6.51 ng/mL, respectively. The alkaline phosphatase analyses in blood levels in control group were observed 40.8 ± 11.88 UI/L and 40.75 ± 12.46 UI/L, for the surfaces machined and anodized, respectively. In the test group was observed levels 37.9 ± 4.84 UI/L, for both implant surfaces. No significant differences were observed between control and test groups and between the implant surfaces regarding alkaline phosphatase blood levels. For biomechanics, no significant differences were observed in control group between the machined (25±8.46 Ncm) or anodized (31.2 ± 6.76 Ncm) implants. However, the treatment with nicotine induced higher torque than control in both machined (38.3 ± 13.52 Ncm) and anodized (35.5 ± 14.17 Ncm) implants, with p = 0.0024 and p = 0.0121, respectively. Conclusion: Subcutaneous injection of nicotine following implant insertion didn’t have effect on osseointegration, independently from the implant surface.
DOI: 10.6084/m9.figshare.5861730
title: Parliamentary debates on death with dignity in Argentina: the rights of terminal patients on the legislative agenda, 1996-2012

description: Abstract: This article examines the regulation on terminal patients’ rights in Argentina at two points in time: the first attempts to regulate end-of-life rights (1996), and the “death with dignity” law passed by the National Congress (2011-2012). Comparative analysis allows us to observe variations among the individuals and situations included in the legislation, as well as in the conceptualization of autonomy and the interventions that is considered lawful refuse. The political context and the differential way that “death with dignity” entered the legislative agenda in each period determined the public’s construction of the problem and thus the extent and result of the debates.
DOI: 10.6084/m9.figshare.5861730.v1
title: Parliamentary debates on death with dignity in Argentina: the rights of terminal patients on the legislative agenda, 1996-2012

description: Abstract: This article examines the regulation on terminal patients’ rights in Argentina at two points in time: the first attempts to regulate end-of-life rights (1996), and the “death with dignity” law passed by the National Congress (2011-2012). Comparative analysis allows us to observe variations among the individuals and situations included in the legislation, as well as in the conceptualization of autonomy and the interventions that is considered lawful refuse. The political context and the differential way that “death with dignity” entered the legislative agenda in each period determined the public’s construction of the problem and thus the extent and result of the debates.