cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11452734
title: Geomechanical characterization of carbonates of the Sete Lagoas Formation (Bambuí Group)

description: Abstract The geomechanical properties of rock masses must be identified to assess their quality and employability; however, the methodologies may differ depending on the lithotype and analytical purposes. The present study aimed to estimate the not-well-known physical-mechanical properties of three types of carbonate rocks (calcarenite, calcilutite, and marble) of Sete Lagoas Formation, which are not recognized in scientific literature, southeast Brazil. These are important rocks from an economic point of view, as they comprise an important input for cement, fertilizers and construction material. Both physical indexes (apparent porosity, apparently dry and saturated specific mass, apparent absorption capacity and wave propagation velocity) and mechanical properties (uniaxial compression, point load and slake durability) were determined. Mechanical tests for these three rock types were correlated to those of other carbonate rocks from other countries, for comparisons. The results showed that the lithotypes under study are peculiar in terms of porosity, wave propagation velocity and strength. Also found were a very high durability and a very good correlation between specific mass and uniaxial compressive strength.
DOI: 10.6084/m9.figshare.5669098.v1
title: Evaluation of the influence of the urban context on the available solar radiation for energy generation

description: Abstract In this work a methodology was developed to evaluate the influence of urban context on the usable solar radiation for energy generation through photovoltaic modules on building envelope. The methodology is based on computer simulations using the programs Diva-for-Rhino and EnergyPlus. Two Brazilian cities with different climate were selected for the study: Florianopolis and Fortaleza. Different urban contexts were defined considering buildings with uniform height (Uniform Context) and random height (Random Context). Through the analysis of solar radiation on the building envelope the influence of shading on energy generation for the different office building types was determined. In addition, strategies for PV application on building envelope through the detailed analysis of available solar radiation were developed. The results showed that within an uniform context PV modules are a good option for energy generation. For buildings up to 6 floors enough energy can be generated to achieve an equalized annual energy balance. For this context the area with highest potential for energy generation is the roof. For the random contexts the facades of the high-rise buildings are an interesting option for PV application as well.
DOI: 10.6084/m9.figshare.7518320
title: DWARFISM OCCURRENCE IN TOMATO PLANT TYPE GRAPE

description: ABSTRACT: The phenotypic manifestations of genetic knowledge of important agronomic traits in plants is an activity of great importance, whose results are widely used in plant breeding. The objective was to study the type of genetic segregation that occurs when crossing a dwarf genotype versus indeterminate growth habit genotype. Their plant was found growing spontaneously in Piracicaba (SP), on-site disposal of fruits per tomatoes producers along with normal plants. Seeds of both plants were harvested separately for baseline and coded as follows: a plant with a normal phenotype (FN) and plant with atypical phenotype with characteristics of dwarfism (FA). The methodology consisted of biparental and reciprocal backcrosses of the F1 to the parent FA and obtained the F2 generation. The data derived from the plant count populations obtained (F1, F2 and backcrosses) were tested using the χ2 according to the expected frequency and observed the normal phenotype (FN) and plant with atypical phenotype with characteristics of dwarfism (FA), under the hypothesis Mendelian segregation 3:1, obtained by monogenic inheritance. From the results, it can be concluded that the phenotype observed in the plant in this study is recessive genetic origin can be inserted into other plants by crossing.
DOI: 10.6084/m9.figshare.7518320.v1
title: DWARFISM OCCURRENCE IN TOMATO PLANT TYPE GRAPE

description: ABSTRACT: The phenotypic manifestations of genetic knowledge of important agronomic traits in plants is an activity of great importance, whose results are widely used in plant breeding. The objective was to study the type of genetic segregation that occurs when crossing a dwarf genotype versus indeterminate growth habit genotype. Their plant was found growing spontaneously in Piracicaba (SP), on-site disposal of fruits per tomatoes producers along with normal plants. Seeds of both plants were harvested separately for baseline and coded as follows: a plant with a normal phenotype (FN) and plant with atypical phenotype with characteristics of dwarfism (FA). The methodology consisted of biparental and reciprocal backcrosses of the F1 to the parent FA and obtained the F2 generation. The data derived from the plant count populations obtained (F1, F2 and backcrosses) were tested using the χ2 according to the expected frequency and observed the normal phenotype (FN) and plant with atypical phenotype with characteristics of dwarfism (FA), under the hypothesis Mendelian segregation 3:1, obtained by monogenic inheritance. From the results, it can be concluded that the phenotype observed in the plant in this study is recessive genetic origin can be inserted into other plants by crossing.
DOI: 10.6084/m9.figshare.8324333.v1
title: Analysis of quartz floatability using design of experiments

description: Abstract Quartz floatability in cationic reverse flotation depends on the suitable choice of surfactant type and the conditions under which they are applied. The design of experiments (DOE) allows the evaluation of process variables, in a structured and independent way, with statistical validation and a limited number of tests. Tests of microflotation of quartz, in the size range -150 +75 µm, using factorial design of experiments, showed that etherdiamine leads to higher level of quartz floatability than ethermonoamine, favored by increase in collector concentration, at the high level of pH tested (11.0). Floatability values above 90% were achieved with the use of 3 mg/L of ether diamine for both pH levels, while with ether monoamine the target was reached only at pH 11.
DOI: 10.6084/m9.figshare.11452734.v1
title: Geomechanical characterization of carbonates of the Sete Lagoas Formation (Bambuí Group)

description: Abstract The geomechanical properties of rock masses must be identified to assess their quality and employability; however, the methodologies may differ depending on the lithotype and analytical purposes. The present study aimed to estimate the not-well-known physical-mechanical properties of three types of carbonate rocks (calcarenite, calcilutite, and marble) of Sete Lagoas Formation, which are not recognized in scientific literature, southeast Brazil. These are important rocks from an economic point of view, as they comprise an important input for cement, fertilizers and construction material. Both physical indexes (apparent porosity, apparently dry and saturated specific mass, apparent absorption capacity and wave propagation velocity) and mechanical properties (uniaxial compression, point load and slake durability) were determined. Mechanical tests for these three rock types were correlated to those of other carbonate rocks from other countries, for comparisons. The results showed that the lithotypes under study are peculiar in terms of porosity, wave propagation velocity and strength. Also found were a very high durability and a very good correlation between specific mass and uniaxial compressive strength.
DOI: 10.6084/m9.figshare.6967676
title: Climate change, flooding and information “lagoons”. Analysis of floods through the tracking of newspaper articles in the Greater La Plata region (Buenos Aires, Argentina)

description: Abstract The document incorporates a methodology for recording floods in the Greater La Plata region based on a survey in a local newspaper (El Día) covering the period from 1911 to 2014. The main results refer to an analysis of floods according to the type of precipitation event, the affected localities, and a recognition of the critical years. This methodology can lead to new lines of research and collaborative platforms, such as applications for early warning, prevention and mitigation, and to strategies oriented to recognize the social perception of risk.
DOI: 10.6084/m9.figshare.7506668
title: New approach for the study of paleofloras using geographical information systems applied to Glossopteris Flora

description: This paper introduces a methodology which makes possible the visualization of the spatial distribution of plant fossils and applies it to the occurrences of the Gondwana Floristic Province present on the eastern border of the Brazilian portion of the Paraná Basin during the Neopaleozoic. This province was chosen due to the existence of a large number of publications referring to their occurrence, so that a meta-analysis of their distribution could be based on ample information. The first step was the construction of a composite database including geographical location, geology, and the botanical systematics of each relevant fossil. The geographical locations were then georeferenced for translation into various maps showing various aspects of the distribution of the fossils. The spatial distribution of the fossil-housing outcrops shows that these are distributed along the area of deposition studied. Although some genera persisted for long periods of time, others lasted for only short intervals. As time passed, the fossil composition underwent a gradual change from the Late Carboniferous (Itararé Group) to the Late Permian (Rio do Rasto Formation), with the number of genera represented decreasing from 45 in the Itararé Group to 11 in the Rio do Rasto Formation.
DOI: 10.6084/m9.figshare.7506668.v1
title: New approach for the study of paleofloras using geographical information systems applied to Glossopteris Flora

description: This paper introduces a methodology which makes possible the visualization of the spatial distribution of plant fossils and applies it to the occurrences of the Gondwana Floristic Province present on the eastern border of the Brazilian portion of the Paraná Basin during the Neopaleozoic. This province was chosen due to the existence of a large number of publications referring to their occurrence, so that a meta-analysis of their distribution could be based on ample information. The first step was the construction of a composite database including geographical location, geology, and the botanical systematics of each relevant fossil. The geographical locations were then georeferenced for translation into various maps showing various aspects of the distribution of the fossils. The spatial distribution of the fossil-housing outcrops shows that these are distributed along the area of deposition studied. Although some genera persisted for long periods of time, others lasted for only short intervals. As time passed, the fossil composition underwent a gradual change from the Late Carboniferous (Itararé Group) to the Late Permian (Rio do Rasto Formation), with the number of genera represented decreasing from 45 in the Itararé Group to 11 in the Rio do Rasto Formation.
DOI: 10.6084/m9.figshare.7518299
title: Evaluation of bond strength of a conventional adhesive system in irradiated teeth

description: Abstract Introduction One of the most common treatments of head and neck cancer patients is radiotherapy, a treatment method which uses ionizing radiation beam and destroys tumor cells, minimizing damage to neighbor cells. Purpose To evaluate the bond strength of a conventional adhesive system in irradiated teeth. Method 24 third human molars, 12 of which were randomly exposed to radiation and prepared from the removal of occlusal enamel, then exposed to a flat dentine surface. The adhesive system Stae was applied according to the manufacturer’s instructions. Next, two 2 mm increments of resin were implemented. The samples were hemi sectioned specimens, originating shapped toothpick. To evaluate the bond strength, a micro tensile test was done with 500N load and speed of 0.5 mm/minute. Result There was no statistically significant difference between the bond strength of teeth which were or were not exposed to radiation and which used a conventional adhesive system. Conclusion Although the radiation doses applied may cause some alterations in microscopic range in dental tissues, it can be concluded that these alterations do not influence in the bond strength in dentin of irradiated teeth.
DOI: 10.6084/m9.figshare.7518299.v1
title: Evaluation of bond strength of a conventional adhesive system in irradiated teeth

description: Abstract Introduction One of the most common treatments of head and neck cancer patients is radiotherapy, a treatment method which uses ionizing radiation beam and destroys tumor cells, minimizing damage to neighbor cells. Purpose To evaluate the bond strength of a conventional adhesive system in irradiated teeth. Method 24 third human molars, 12 of which were randomly exposed to radiation and prepared from the removal of occlusal enamel, then exposed to a flat dentine surface. The adhesive system Stae was applied according to the manufacturer’s instructions. Next, two 2 mm increments of resin were implemented. The samples were hemi sectioned specimens, originating shapped toothpick. To evaluate the bond strength, a micro tensile test was done with 500N load and speed of 0.5 mm/minute. Result There was no statistically significant difference between the bond strength of teeth which were or were not exposed to radiation and which used a conventional adhesive system. Conclusion Although the radiation doses applied may cause some alterations in microscopic range in dental tissues, it can be concluded that these alterations do not influence in the bond strength in dentin of irradiated teeth.
DOI: 10.6084/m9.figshare.6967676.v1
title: Climate change, flooding and information “lagoons”. Analysis of floods through the tracking of newspaper articles in the Greater La Plata region (Buenos Aires, Argentina)

description: Abstract The document incorporates a methodology for recording floods in the Greater La Plata region based on a survey in a local newspaper (El Día) covering the period from 1911 to 2014. The main results refer to an analysis of floods according to the type of precipitation event, the affected localities, and a recognition of the critical years. This methodology can lead to new lines of research and collaborative platforms, such as applications for early warning, prevention and mitigation, and to strategies oriented to recognize the social perception of risk.
DOI: 10.6084/m9.figshare.7517990
title: Seasonal characterization of the physical, chemical, biological and ecotoxicological variables in a stretch of the Paraíba do Sul River, SP, Brazil

description: Abstract The Paraíba do Sul River is located in a Brazilian region with high population density and great socio-economic importance. In the São Paulo stretch, the river is impacted and water quality is impaired due to the removal of riparian vegetation, increases in impermeable surfaces, industrial activity, the use of agricultural inputs, and the release of wastewater without proper treatment. This study characterized the physical, chemical, biological and ecotoxicological variables associated with the water quality of the Paraíba do Sul River in the upper-middle stretch during the dry and wet seasons. The sampling was carried out quarterly between August 2013 and August 2014. The variables evaluated were pH, temperature, conductivity, turbidity, dissolved oxygen (OD), biochemical oxygen demand (DBO), chemical oxygen demand (DQO), total phosphorus (PT), total solids (ST), fecal coliforms (CT), chlorophyll-a, acute toxic effect (ETA) and chronic toxic effect (ETC) and Trophic State Index (IET). The results showed that the variables OD, PT and CT were not in accordance with those established for a Class 2 aquatic environment, according to the National Counsel for the Environment 357/2005 (Portuguese acronym “CONAMA”). Some variables showed a reduction during the evaluated period, such as DBO (42.4%), ST (31.1%) and DQO (21.3%). Both ETA and ETC were observed in the rainy period. The statistical analysis showed that the rainfall has an influence on OD, DBO, ST, chlorophyll-a, ETA and ETC, acting as a possible intensifier agent of impacts on the river.
DOI: 10.6084/m9.figshare.6388808
title: Qualitative study of an oral health education program

description: Abstract Introduction Oral health education has been based on the assumptions of banking education (BE). The aim is to substitute this with popular education (PE) characterized by dialogical construction. This qualitative study aims to understand the perception of those involved in a health education program, conducted in the state of Santa Catarina. Methods Data collection was carried out with 4 focus groups, one in each city visited, involving 3 to 12 teachers and administrators in each group. Results Content analysis by Bardin resulted in three categories: Perceptions about methodological aspects, content and participants. Conclusions The program was perceived as an opportunity to share experiences regarding oral health, including school work. We identified two practices of educational concepts (BE and PE), denoting transition traits and difficulty to achieve this exchange explained by the features of the program and the historical processes in the field of oral health.
DOI: 10.6084/m9.figshare.7517990.v1
title: Seasonal characterization of the physical, chemical, biological and ecotoxicological variables in a stretch of the Paraíba do Sul River, SP, Brazil

description: Abstract The Paraíba do Sul River is located in a Brazilian region with high population density and great socio-economic importance. In the São Paulo stretch, the river is impacted and water quality is impaired due to the removal of riparian vegetation, increases in impermeable surfaces, industrial activity, the use of agricultural inputs, and the release of wastewater without proper treatment. This study characterized the physical, chemical, biological and ecotoxicological variables associated with the water quality of the Paraíba do Sul River in the upper-middle stretch during the dry and wet seasons. The sampling was carried out quarterly between August 2013 and August 2014. The variables evaluated were pH, temperature, conductivity, turbidity, dissolved oxygen (OD), biochemical oxygen demand (DBO), chemical oxygen demand (DQO), total phosphorus (PT), total solids (ST), fecal coliforms (CT), chlorophyll-a, acute toxic effect (ETA) and chronic toxic effect (ETC) and Trophic State Index (IET). The results showed that the variables OD, PT and CT were not in accordance with those established for a Class 2 aquatic environment, according to the National Counsel for the Environment 357/2005 (Portuguese acronym “CONAMA”). Some variables showed a reduction during the evaluated period, such as DBO (42.4%), ST (31.1%) and DQO (21.3%). Both ETA and ETC were observed in the rainy period. The statistical analysis showed that the rainfall has an influence on OD, DBO, ST, chlorophyll-a, ETA and ETC, acting as a possible intensifier agent of impacts on the river.
DOI: 10.6084/m9.figshare.7518656
title: Option for the Radial versus Femoral Access in Coronary Intervention in Acute Coronary Syndromes: A Risk-Treatment Paradox

description: Abstract Background: In coronary procedures, although the radial approach protects patients from hemorrhagic complications, it is technically more complex than the femoral approach. Objectives: To test the hypothesis that the radial approach is the procedure of choice in ACS patients due to the high risk of bleeding; and to identify independent predictors of the choice for radial access. Methods: Patients admitted for ACS who underwent invasive coronary procedure were included. We registered the type of access (femoral or radial) chosen by the physician for the first angiography; the investigators did not interfere with this choosing process. Student’s t-test was used for comparisons between the CRUSADE and ACUITY scores. Predictors of radial access were compared between the groups. Statistical significance was defined by p &lt; 0,05. Results: Radial access was chosen in 67% of 347 consecutive patients. Patients who underwent radial approach had lower risk of bleeding determined by CRUSADE (30 ± 14 vs. 37 ± 15; p &lt; 0.001) as compared with femoral access. In multivariate analysis, four variables were identified as independent predictors negatively associated with radial access - age (OR = 0.98; 95%CI = 0.96 - 0.99), creatinine (OR = 0.54; 95%CI = 0.3 - 0.98), signs of left ventricular failure (OR = 0.45; 95% CI = 0.22 - 0.92) and previous CABG (OR = 0.022; 95%CI = 0.003 - 0.166). Conclusion: The propensity to choose radial over femoral access in coronary intervention was not primarily influenced by patients’ bleeding risk. Predictors of this decision, identified in the study, indicated less complex patients, suggesting that the difficulty in performing the technique was a stronger determinant than its potential antihemorrhagic effect. (Int J Cardiovasc Sci. 2018; [online].ahead print, PP.0-0)
DOI: 10.6084/m9.figshare.7518656.v1
title: Option for the Radial versus Femoral Access in Coronary Intervention in Acute Coronary Syndromes: A Risk-Treatment Paradox

description: Abstract Background: In coronary procedures, although the radial approach protects patients from hemorrhagic complications, it is technically more complex than the femoral approach. Objectives: To test the hypothesis that the radial approach is the procedure of choice in ACS patients due to the high risk of bleeding; and to identify independent predictors of the choice for radial access. Methods: Patients admitted for ACS who underwent invasive coronary procedure were included. We registered the type of access (femoral or radial) chosen by the physician for the first angiography; the investigators did not interfere with this choosing process. Student’s t-test was used for comparisons between the CRUSADE and ACUITY scores. Predictors of radial access were compared between the groups. Statistical significance was defined by p &lt; 0,05. Results: Radial access was chosen in 67% of 347 consecutive patients. Patients who underwent radial approach had lower risk of bleeding determined by CRUSADE (30 ± 14 vs. 37 ± 15; p &lt; 0.001) as compared with femoral access. In multivariate analysis, four variables were identified as independent predictors negatively associated with radial access - age (OR = 0.98; 95%CI = 0.96 - 0.99), creatinine (OR = 0.54; 95%CI = 0.3 - 0.98), signs of left ventricular failure (OR = 0.45; 95% CI = 0.22 - 0.92) and previous CABG (OR = 0.022; 95%CI = 0.003 - 0.166). Conclusion: The propensity to choose radial over femoral access in coronary intervention was not primarily influenced by patients’ bleeding risk. Predictors of this decision, identified in the study, indicated less complex patients, suggesting that the difficulty in performing the technique was a stronger determinant than its potential antihemorrhagic effect. (Int J Cardiovasc Sci. 2018; [online].ahead print, PP.0-0)