cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7517162
title: Formal Comparisons of Legislative Institutions: Ideal Points from Brazilian Legislatures

description: As the popularity of formal analyses of legislative activity in Latin America grows, so does the importance of understanding the limits of the estimates produced by such analyses and the methodological adaptations necessary when using these measures to make formal comparisons. This research note details the considerations involved and demonstrates their significance with an empirical example using the Brazilian Chamber of Deputies and the Federal Senate. This empirical analysis leads to conclusions that are the opposite of those in the literature, suggesting that such formal comparisons across institutions need to be made with care.
DOI: 10.6084/m9.figshare.6125156
title: Sedimentary provenance in the southern sector of the São Francisco Basin, SE Brazil

description: ABSTRACT: We present new Sm-Nd, U-Pb and Hf isotope geochronological data for the siliciclastic rocks in the southern sector of the São Francisco Basin. An abrupt change in the Sm-Nd data is observed from the Carrancas Formation’s oligomitic conglomerates (TDM ages between 2.7 and 3.3 Ga; εNd(550 Ma) values between -25.09 and -17.98), its finer facies, and the finer facies of the the Moema Laminite (TDM ages from 1.4 to 2.1 Ga; εNd(550 Ma) values between -9.46 and -5.59). No further significant changes in the Sm-Nd data occur farther upwards in the Bambuí Group (Sm-Nd TDM ages within the 1.3-2.0 Ga interval; εNd(550 Ma) values from -9.53 to -4.09), showing a lack of reorganization in the source areas throughout the deposition of the basin. This is yet another argument to dismiss an unconformity within the Bambuí Group. The presence of the index fossil Cloudina sp. in the lower Sete Lagoas Formation makes the glaciation probably Late Ediacaran in age. U-Pb ages for detrital zircons of the Bambuí Group range from the Archean to the early Ediacaran, but the current data is insufficient to distinguish between the contribution from sources in the Brasília and Araçuaí belts.
DOI: 10.6084/m9.figshare.7514339
title: Polyphase deformation and metamorphism of the Cuiabá group in the Poconé region (MT), Paraguay Fold and Thrust Belt: kinematic and tectonic implications

description: Several deformation models have been proposed for the Paraguay Belt, which primarily differ in the number of phases of deformation, direction of vergence and tectonic style. Structural features presented in this work indicate that the tectonics was dominated by low dip thrust sheets in an initial phase, followed by two progressive deformation phases. The first phase of deformation is characterized by a slate cleavage and axial plane of isoclinal recumbent folds with a NE axial direction, with a recrystallization of the minerals in the greenschist facies associated with horizontal shear zones with a top-to-the-SE sense of movement. The second stage shows vergence towards the NW, characterized by crenulation cleavage axial plane to F2 open folds over S0 and S1, locally associated with reverse faults. The third phase of deformation is characterized by subvertical faults and fractures with a NW direction showing sinistral movement, which are commonly filled by quartz veins. The collection of tectonic structures and metamorphic paragenesis described indicate that the most intense deformation at the deeper crustal level, greenschistfacies, occurred during F1, which accommodated significant crustal shortening through isoclinal recumbent folds and shear zones with low dip angles and hangwall movement to the SE, in a thin-skinned tectonic regime. The F2 deformation phase was less intense and had a brittle to ductile behavior that accommodated a slight shortening through normal open subvertical folds, and reverse faults developed in shallower crustal level, with vergence towards the Amazonian Craton. The third phase was less pervasive, and the shortening was accommodated by relief subvertical sinistral faults.
DOI: 10.6084/m9.figshare.7514339.v1
title: Polyphase deformation and metamorphism of the Cuiabá group in the Poconé region (MT), Paraguay Fold and Thrust Belt: kinematic and tectonic implications

description: Several deformation models have been proposed for the Paraguay Belt, which primarily differ in the number of phases of deformation, direction of vergence and tectonic style. Structural features presented in this work indicate that the tectonics was dominated by low dip thrust sheets in an initial phase, followed by two progressive deformation phases. The first phase of deformation is characterized by a slate cleavage and axial plane of isoclinal recumbent folds with a NE axial direction, with a recrystallization of the minerals in the greenschist facies associated with horizontal shear zones with a top-to-the-SE sense of movement. The second stage shows vergence towards the NW, characterized by crenulation cleavage axial plane to F2 open folds over S0 and S1, locally associated with reverse faults. The third phase of deformation is characterized by subvertical faults and fractures with a NW direction showing sinistral movement, which are commonly filled by quartz veins. The collection of tectonic structures and metamorphic paragenesis described indicate that the most intense deformation at the deeper crustal level, greenschistfacies, occurred during F1, which accommodated significant crustal shortening through isoclinal recumbent folds and shear zones with low dip angles and hangwall movement to the SE, in a thin-skinned tectonic regime. The F2 deformation phase was less intense and had a brittle to ductile behavior that accommodated a slight shortening through normal open subvertical folds, and reverse faults developed in shallower crustal level, with vergence towards the Amazonian Craton. The third phase was less pervasive, and the shortening was accommodated by relief subvertical sinistral faults.
DOI: 10.6084/m9.figshare.9739553.v1
title: The role of airborne geophysics in the investigation of gold occurrences in the Itapetim Region, Borborema Province, Northeast Brazil

description: Abstract We present a combined analysis of airborne geophysical data (magnetics and gamma-ray spectrometry) and field aspects of Itapetim lode gold district region, aiming to identify structurally deformed and hydrothermally altered zones, which are suggestive of gold mineralized sectors. The main geophysical lineaments are oriented in the NE-SW and E-W directions and display a clear correlation with the major gold-bearing structures in the region. In the magnetic maps, the key pathfinder for gold occurrences is their association with strongly magnetized areas positioned along the Itapetim Shear Zone and outer contour of Teixeira Batholith. In the field, such structures are materialized in protomylonitic and mylonitic rocks that present evidence of ductile and brittle deformation, whereas kinematic criteria are suggestive of a transpressional tectonic regime. In addition, the main radiometric pattern is characterized by K enrichment, which is correlated with a hydrothermal mineral assemblage dominated by quartz, potassium feldspar, and tourmaline. Based on the obtained data integration, we produced an integrative map and located ten new target areas of possible gold mineralization, which is correlative to other well-known lode deposits in Northeast Brazil and Africa.
DOI: 10.6084/m9.figshare.12210713
title: Enhancing Strategic Planning Through Strategy Instruction: The Effect of Two Types Of Strategy Instruction On Learners’ Oral Planned Performance

description: Abstract This study aimed at investigating the impact of two types of strategy instruction on Brazilian learners’ planned speech performance at the level of complexity, accuracy, fluency, and adequacy. In order to do so, three groups participated in the present study: (1) the integrated group received strategy instruction during their regular English classes; (2) the isolated group received strategy instruction in a separate course; and (3) the control group received no strategy instruction. The groups also performed two narrative tasks before and after treatment, preceded by 10 minutes of strategic planning. Learners’ oral performance was analyzed and the statistical results showed that (i) the groups that received treatment outperformed the control group; and (ii) the isolated group produced more adequate and accurate speech, while the integrated groups improved their performance in terms of adequacy solely. In conclusion, one can claim that, in spite of the type of treatment, strategic planning can be enhanced by strategy instruction, shedding light on both Language Pedagogy and strategic planning research.
DOI: 10.6084/m9.figshare.10025609
title: SOLUBLE PROTEIN AS INDICATIVE OF PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS

description: ABSTRACT After physiological maturity, the seed is physiologically independent of the plant, and responds to climatic variations that can decrease its vigor, which is dependent on the cultivar. The objective of this work was to evaluate the vigor of soybean cultivars and identify the biochemical components that have the greatest contribution to the maintenance of the physiological quality of the seeds after physiological maturity. The experiment was conducted in Fraiburgo, SC, Brazil, during the 2015/2016 crop season, using four soybean cultivars NA 5909 RG, BMX Ativa RR, BMX VanguardaIPRO, and NS 5959 IPRO. The seed physiological quality and the biochemical composition were evaluated at the phenological stages R7, R7+5 days, R7+10 days (R8), and R7+20 days. The data were subjected to analysis of variance (F test) and the means were compared by the Tukey's test (p&lt;0.01). The seed biochemical composition and physiological quality were correlated using multivariate statistics. The germination of the seeds decreased 6% after physiological maturity up to R7+20 days. This decrease in vigor was dependent on the cultivar; NA 5909 RG decreased 3%, and BMX Ativa RR and NS 5959 IPRO decreased 7%. The biochemical components soluble protein, phytate, soluble sugar, and lipids decreased as a function of the harvest times, indicating the beginning of the process of seed quality loss. The maintenance of seed vigor after physiological maturity was dependent on the cultivar. The soluble protein content can be used as an indicator of the maintenance of physiological quality of soybean seeds after R7.
DOI: 10.6084/m9.figshare.7517186
title: Taking Portfolios Difference Seriously: A Composite Measure Based on Policy, Office, and Budget in Brazil

description: Portfolio allocation is the keystone of coalition government analysis. It constitutes the fundamental payoff in coalition formation, providing access to government decision-making. However, are all portfolios the same or have the same weight in government decision-making? This research note presents a measure of portfolio differences based on three dimensions: policy, office, and budget. Factor analysis is used to generate a composite indicator of portfolio importance in Brazil from 1999 to 2014. Results show that portfolios vary significantly in importance in each of the three dimensions, meaning that a ministry of little importance in one dimension can be very important in another. With policy, office, and budget combined, the most important ministry is the Ministry of Finance and the least important is the Ministry of Fishery. This indicator is the first step to summarize the differences between ministries that can be used to inform empirical analysis about coalition formation and governance in Brazil.
DOI: 10.6084/m9.figshare.12210713.v1
title: Enhancing Strategic Planning Through Strategy Instruction: The Effect of Two Types Of Strategy Instruction On Learners’ Oral Planned Performance

description: Abstract This study aimed at investigating the impact of two types of strategy instruction on Brazilian learners’ planned speech performance at the level of complexity, accuracy, fluency, and adequacy. In order to do so, three groups participated in the present study: (1) the integrated group received strategy instruction during their regular English classes; (2) the isolated group received strategy instruction in a separate course; and (3) the control group received no strategy instruction. The groups also performed two narrative tasks before and after treatment, preceded by 10 minutes of strategic planning. Learners’ oral performance was analyzed and the statistical results showed that (i) the groups that received treatment outperformed the control group; and (ii) the isolated group produced more adequate and accurate speech, while the integrated groups improved their performance in terms of adequacy solely. In conclusion, one can claim that, in spite of the type of treatment, strategic planning can be enhanced by strategy instruction, shedding light on both Language Pedagogy and strategic planning research.
DOI: 10.6084/m9.figshare.7513886
title: Effect of restoration technique on stress distribution in extensively destroyed premolars: a finite element analysis study

description: ABSTRACT Objective: The objective of this study by the finite element method was to analyze the stress distribution on a single-rooted mandibular premolar tooth restored in two different ways. Methods: Laboratory simulation considered the following situations: 1) premolar restored with gold cast post and ceramic crown; 2) premolar restored with glass fiber post, composite resin core and ceramic crown. For this we used a two-dimensional model of a premolar with load application of 300N in the axial and oblique directions within the ANSYS program for Windows. Results: Under the axial load, a higher concentration of stresses was observed around the cast post (166 MPa). In the oblique load simulation, there was a concentration of stresses on the buccal root wall, internally and externally, in the tooth restored with cast post (222 MPa). In both load directions, the glass fiber post dissipated the stress received with greater uniformity (55 to 111 MPa). Conclusion: These data suggested that from the biomechanical point of view, the use of a glass fiber post and composite resin core could be more advantageous than the cast post technique for a mandibular single-rooted premolar tooth.
DOI: 10.6084/m9.figshare.7517162.v1
title: Formal Comparisons of Legislative Institutions: Ideal Points from Brazilian Legislatures

description: As the popularity of formal analyses of legislative activity in Latin America grows, so does the importance of understanding the limits of the estimates produced by such analyses and the methodological adaptations necessary when using these measures to make formal comparisons. This research note details the considerations involved and demonstrates their significance with an empirical example using the Brazilian Chamber of Deputies and the Federal Senate. This empirical analysis leads to conclusions that are the opposite of those in the literature, suggesting that such formal comparisons across institutions need to be made with care.
DOI: 10.6084/m9.figshare.7517186.v1
title: Taking Portfolios Difference Seriously: A Composite Measure Based on Policy, Office, and Budget in Brazil

description: Portfolio allocation is the keystone of coalition government analysis. It constitutes the fundamental payoff in coalition formation, providing access to government decision-making. However, are all portfolios the same or have the same weight in government decision-making? This research note presents a measure of portfolio differences based on three dimensions: policy, office, and budget. Factor analysis is used to generate a composite indicator of portfolio importance in Brazil from 1999 to 2014. Results show that portfolios vary significantly in importance in each of the three dimensions, meaning that a ministry of little importance in one dimension can be very important in another. With policy, office, and budget combined, the most important ministry is the Ministry of Finance and the least important is the Ministry of Fishery. This indicator is the first step to summarize the differences between ministries that can be used to inform empirical analysis about coalition formation and governance in Brazil.
DOI: 10.6084/m9.figshare.10025609.v1
title: SOLUBLE PROTEIN AS INDICATIVE OF PHYSIOLOGICAL QUALITY OF SOYBEAN SEEDS

description: ABSTRACT After physiological maturity, the seed is physiologically independent of the plant, and responds to climatic variations that can decrease its vigor, which is dependent on the cultivar. The objective of this work was to evaluate the vigor of soybean cultivars and identify the biochemical components that have the greatest contribution to the maintenance of the physiological quality of the seeds after physiological maturity. The experiment was conducted in Fraiburgo, SC, Brazil, during the 2015/2016 crop season, using four soybean cultivars NA 5909 RG, BMX Ativa RR, BMX VanguardaIPRO, and NS 5959 IPRO. The seed physiological quality and the biochemical composition were evaluated at the phenological stages R7, R7+5 days, R7+10 days (R8), and R7+20 days. The data were subjected to analysis of variance (F test) and the means were compared by the Tukey's test (p&lt;0.01). The seed biochemical composition and physiological quality were correlated using multivariate statistics. The germination of the seeds decreased 6% after physiological maturity up to R7+20 days. This decrease in vigor was dependent on the cultivar; NA 5909 RG decreased 3%, and BMX Ativa RR and NS 5959 IPRO decreased 7%. The biochemical components soluble protein, phytate, soluble sugar, and lipids decreased as a function of the harvest times, indicating the beginning of the process of seed quality loss. The maintenance of seed vigor after physiological maturity was dependent on the cultivar. The soluble protein content can be used as an indicator of the maintenance of physiological quality of soybean seeds after R7.
DOI: 10.6084/m9.figshare.5772711
title: New concept of tunnel boring machine: high performance using water jet and diamond wire as rock cutting technology

description: Abstract Tunnel boring machines are important tools in underground infrastructure projects. Although being well established equipment, these machinesare based on designsof more than 60 years ago and are characterized by big dimensions, enormous weight and high power consumption. Commercial aspects should be noted too. The model adopted by the TBM industry requires constant replacement of cutter discs and specific labor skills, usually offered by the same manufacturingcompany. In some cases the cost of replacement parts and technical assistance can be higher than the acquisition cost of an entire machine. These aspects are no longer compatible with the concept of sustainability that is an important aspect of currentsociety. While the technical characteristics require a large quantity of steel and several inputs, the adoptedmodel is not competitive. One alternative is looking for new technologies that break the old paradigms and allow the development of high performance concepts with lower social and environmental impact. This studydealswith this opportunity by proposing a high performance tunnel boring machine that makes use of high power water jet and diamond wire to compose a double shield cutter head. It works in two stages. In the fristone, an annular cut is executed by hydrodemolition,and in the second one, the diamond wire station slices the rock core. Only with the action of diamond wire is the rock core separated from the rock mass and the removal process is finished. A smart water jet nozzle movement system is described and non circular tunnels can be executed. The new technologies involved requirea different type of backup system, lighter and smaller. The non-existence of mechanical contact between the equipment and the rock mass at theexcavation front allows low power consumption. The advanced rate and primary excavation cost analyses can also be encountered herein. It shows that it is possible to reach an advanced rate of 174 m/day in soft and porous rock and 0.64 m/day in hard and non porousrock, whereas the NTNU method indicates only 55m/day and 13m/day underrespective conditions. On the other hand, the excavation cost is high for both conditions. One option is to use sand as an abrasive in the water jet process, reducing by half the primary excavation cost. It is reasonable to say that the proposed concept can be considered as an alternative for tunnels in soft rock and high porosity, and needs better performance of the water jet system to become an alternative for hard rock.
DOI: 10.6084/m9.figshare.5772711.v1
title: New concept of tunnel boring machine: high performance using water jet and diamond wire as rock cutting technology

description: Abstract Tunnel boring machines are important tools in underground infrastructure projects. Although being well established equipment, these machinesare based on designsof more than 60 years ago and are characterized by big dimensions, enormous weight and high power consumption. Commercial aspects should be noted too. The model adopted by the TBM industry requires constant replacement of cutter discs and specific labor skills, usually offered by the same manufacturingcompany. In some cases the cost of replacement parts and technical assistance can be higher than the acquisition cost of an entire machine. These aspects are no longer compatible with the concept of sustainability that is an important aspect of currentsociety. While the technical characteristics require a large quantity of steel and several inputs, the adoptedmodel is not competitive. One alternative is looking for new technologies that break the old paradigms and allow the development of high performance concepts with lower social and environmental impact. This studydealswith this opportunity by proposing a high performance tunnel boring machine that makes use of high power water jet and diamond wire to compose a double shield cutter head. It works in two stages. In the fristone, an annular cut is executed by hydrodemolition,and in the second one, the diamond wire station slices the rock core. Only with the action of diamond wire is the rock core separated from the rock mass and the removal process is finished. A smart water jet nozzle movement system is described and non circular tunnels can be executed. The new technologies involved requirea different type of backup system, lighter and smaller. The non-existence of mechanical contact between the equipment and the rock mass at theexcavation front allows low power consumption. The advanced rate and primary excavation cost analyses can also be encountered herein. It shows that it is possible to reach an advanced rate of 174 m/day in soft and porous rock and 0.64 m/day in hard and non porousrock, whereas the NTNU method indicates only 55m/day and 13m/day underrespective conditions. On the other hand, the excavation cost is high for both conditions. One option is to use sand as an abrasive in the water jet process, reducing by half the primary excavation cost. It is reasonable to say that the proposed concept can be considered as an alternative for tunnels in soft rock and high porosity, and needs better performance of the water jet system to become an alternative for hard rock.