cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.8227349
title: An epistemological analysis of organizational strategy within social economy

description: Abstract This article presents an epistemological analysis of scientific papers focusing on the study of organizational strategy within social economy enterprises. By combining epistemological studies from two knowledge fields, organizational strategy and social economy, this article aims to grasp whether the set of studies that, today, make up the theoretical framework about the strategy of social economy enterprises might be strong enough to support the development of their own knowledge concerning the strategic particularities of these organizations. The analysis was based on a literature review about the theme, which identified 74 papers on organizational strategy in a database containing more than 3,000 studies in social economy. An analytical form consisting of five elements was prepared through the epistemological attitudes adopted in the branches of strategy and social economy: focus, ideology, strategy evolution, strategy definition, and attitude. As a result, three categories of studies were identified, according to the crucial nature of the strategy definition adopted: strategy as a pragmatic content, strategy as an analytical process, and strategy as a structural choice. The conclusions point out that the study of organizational strategy in social economy shows an evolution whose tendency is conducting studies that increasingly focus on the investigation of specific strategic particularities of these organizations.
DOI: 10.6084/m9.figshare.8227352
title: Meteorological Databases: Metadata Analysis of the Weather Station Network in the Santa Catarina State, Brazil

description: Abstract The objective of this paper was to evaluate the weather stations metadata in Santa Catarina state based on the recommendations of the World Meteorological Organization (WMO). Metadata available at websites of the Instituto Nacional de Meteorologia (INMET), the Agritempo, the Agência Nacional de Águas (ANA) and the Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri) were evaluated. The results showed that the metadata available for the weather stations that cover the state of Santa Catarina does not fully meet the OMM recommendations. There are problems in the stations coding and geo-referencing. There are registration problems regarding institutional responsibility for the stations and there are cadastral inconsistency between stations present in more than one database. There are also uncertainties related to the geographical position of the stations.
DOI: 10.6084/m9.figshare.8227358.v1
title: Effect of EDTA and QMIX Ultrasonic Activation on the Reduction of Microorganisms and Endotoxins in Ex Vivo Human Root Canals

description: Abstract The present study aimed to compare the effectiveness of QMiX and 17% EDTA associated to passive ultrasonic irrigation (PUI) or manual agitation (MA) on the reduction of E. faecalis, E. coli and LPS from root canals. Forty single rooted human teeth were randomly divided into four groups (n=10), according to the final irrigation protocol: EDTA+MA, QMiX+MA, EDTA+PUI, QMiX+PUI. Sample collections were obtained from the root canal content immediately before preparation (baseline-S1), after instrumentation (S2), after final irrigation protocol (S3) and 7 days after instrumentation and final irrigation (S4). The antimicrobial effectivity and on endotoxin content were analyzed by culture procedure (CFU/mL) and LAL assay (EU/mL), respectively. The results were statistically analyzed by Kruskal-Wallis and Friedman test (α=5%). QMiX+MA and QMiX+PUI reduced 100% of E. coli and E. faecalis bacteria and also prevented E. faecalisregrowth at S4. EDTA significantly reduced E. coli, but it was not effective in reducing E. faecalis. All protocols reduced EU/mL when compared to S1, however at S4 there was a significant reduction of EU/mL only in the QMiX+MA and QMiX+PUI groups in relation to S3 and S2, respectively. Final irrigation with QMiX associated with MA or PUI had superior antibacterial efficacy compared to EDTA, eliminating 100% of E. coli and E. faecalis strains. In addition, QMiX+PUI reduced 97.61% of the initial content of LPS.
DOI: 10.6084/m9.figshare.8227349.v1
title: An epistemological analysis of organizational strategy within social economy

description: Abstract This article presents an epistemological analysis of scientific papers focusing on the study of organizational strategy within social economy enterprises. By combining epistemological studies from two knowledge fields, organizational strategy and social economy, this article aims to grasp whether the set of studies that, today, make up the theoretical framework about the strategy of social economy enterprises might be strong enough to support the development of their own knowledge concerning the strategic particularities of these organizations. The analysis was based on a literature review about the theme, which identified 74 papers on organizational strategy in a database containing more than 3,000 studies in social economy. An analytical form consisting of five elements was prepared through the epistemological attitudes adopted in the branches of strategy and social economy: focus, ideology, strategy evolution, strategy definition, and attitude. As a result, three categories of studies were identified, according to the crucial nature of the strategy definition adopted: strategy as a pragmatic content, strategy as an analytical process, and strategy as a structural choice. The conclusions point out that the study of organizational strategy in social economy shows an evolution whose tendency is conducting studies that increasingly focus on the investigation of specific strategic particularities of these organizations.
DOI: 10.6084/m9.figshare.8227352.v1
title: Meteorological Databases: Metadata Analysis of the Weather Station Network in the Santa Catarina State, Brazil

description: Abstract The objective of this paper was to evaluate the weather stations metadata in Santa Catarina state based on the recommendations of the World Meteorological Organization (WMO). Metadata available at websites of the Instituto Nacional de Meteorologia (INMET), the Agritempo, the Agência Nacional de Águas (ANA) and the Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri) were evaluated. The results showed that the metadata available for the weather stations that cover the state of Santa Catarina does not fully meet the OMM recommendations. There are problems in the stations coding and geo-referencing. There are registration problems regarding institutional responsibility for the stations and there are cadastral inconsistency between stations present in more than one database. There are also uncertainties related to the geographical position of the stations.
DOI: 10.6084/m9.figshare.8227337
title: Energy Balance, Leaf Emission and Radiation Use Efficiency by Sugarcane Under Cultivation with and without Straw

description: Abstract In recent decades there has been a change in the system of harvesting and management of straw in sugarcane fields all over Brazil, aiming to comply with current legislation and reduce costs. The crop residues deposition on the soil, however, modifies the micrometeorological characteristics of the crop environment. This work reports a study conducted in Juazeiro-BA to evaluate the effect of field straw maintenance on the energy balance, development and radiation use efficiency by sugarcane. Micrometeorological and crop measurements were made between September 2015 and July 2016. The magnitude and seasonality of the latent, sensible and soil heat fluxes were affected by the presence of straw (p &lt; 0.0001) with a change in the LE/Rn from 84% to 64%, H/Rn from 12% to 35% and G/Rn from 4% to 2%, in that order, for the cultivation without and with straw. The air temperature was higher in the straw crop after the canopy closure, while the air relative humidity was increased only in the first months. The modification of the microclimate due to the maintenance of the straw altered the leaf emission speed of the sugarcane, but little affected the radiation use efficiency by crop (~ 2.51 g MJ-1).
DOI: 10.6084/m9.figshare.8227343
title: Technical analysis of water from rural sources

description: ABSTRACT The objective of this research was to evaluate the raw water sources as for the color, pH, ammonia level and presence of total and faecal coliforms. This water is used for household supply and at regional food agroindustry in Planalto Catarinense - Santa Catarina, Brazil, which was evaluated according to the standards of Brazilian National Council Legislation (Resolution no 2,914/2011 from the Ministry of Health). It is concluded that there was no change in water color, presenting a below the maximum allowable standard. There is a low concentration of ammonia in the water, the pH presented a variable between 5.5 to 7.5 and some samples showed contamination by faecal coliforms. In this way, this research demonstrated that the notification and orientation to landowners was required for disinfection of the water in order to eliminate any pathogenic agents.
DOI: 10.6084/m9.figshare.8227334
title: Eggs of tegu lizard, Salvator merianae (Duméril & Bilbron, 1839) (Squamata; Teiidae) damaged by fungal infections

description: Abstract The tegu (Salvator merianae) is the largest lizard found in Brazil and has a wide distribution, occurring in several biomes. The presence of fungi on reptilian eggs initially occurs on infertile eggs, which leads to a subsequent infection in fertile eggs, causing damage and death of embryos. The objective of this study was to identify the fungi that caused lesions in the eggs of tegu in captivity. Swabs were collected on infected and healthy eggshells, in an embryo that died and the substrate of the incubation box. Samples were submitted to saboraund dextrose agar. A total of 93.3% of positive samples were obtained for the fungi Fusarium (11/14), Trichoderma (1/15), Penicilium (1/15), Mucor (1/15), and yeasts of the genus Trichosporon. Therefore, Fusarium was the main agent that caused the lesion and death of embryos in the eggs of the tegu lizard. Sanitary control methods may be taken to avoid fungal infections in the eggs.
DOI: 10.6084/m9.figshare.8227346
title: Effect of ZrB2 Particle Size on Pressureless Sintering of ZrB2 - ß-Sic Composites

description: ABSTRACT: Zirconium diboride is an ultra high temperature ceramic material that leads this emerging class of materials because of its distinct combination of properties, including high melting temperature (&gt; 3000 °C) and the lowest theoretical density (6.09 g·cm-3) among the borides. This combination of properties makes ZrB2 candidate for airframe leading edges on sharp-bodied reentry vehicles. In this work, the effect of particle size of ZrB2 on the pressureless sintering of ZrB2-SiC composites was studied, using ZrB2 powder with average particle size of 2.6 and 14.2µm. Four different vol% concentration of ß-SiC (0, 10, 20 and 30 vol%) were added to as-received and planetary milled ZrB2 powder. Samples were pressureless sintered at 2050 °C/1h in argon atmosphere. The reduction of initial ZrB2 particle size led to composites with better results of densification, mechanical properties and oxidation resistance regardless ß-SiC addition, showing relative densities around 92.5 %Theoretical Density (Td) and flexural strength and microhardness around 260 MPa and 17.5 GPa, respectively. Composites processed with as-received ZrB2 powder showed increasing in densification and flexural strength with the SiC content increasing. Relative density varied from 74.7 to 90.8 %TD and flexural strength from 102 to 241 MPa, for 0 and 30 vol% of SiC, respectively.
DOI: 10.6084/m9.figshare.8227337.v1
title: Energy Balance, Leaf Emission and Radiation Use Efficiency by Sugarcane Under Cultivation with and without Straw

description: Abstract In recent decades there has been a change in the system of harvesting and management of straw in sugarcane fields all over Brazil, aiming to comply with current legislation and reduce costs. The crop residues deposition on the soil, however, modifies the micrometeorological characteristics of the crop environment. This work reports a study conducted in Juazeiro-BA to evaluate the effect of field straw maintenance on the energy balance, development and radiation use efficiency by sugarcane. Micrometeorological and crop measurements were made between September 2015 and July 2016. The magnitude and seasonality of the latent, sensible and soil heat fluxes were affected by the presence of straw (p &lt; 0.0001) with a change in the LE/Rn from 84% to 64%, H/Rn from 12% to 35% and G/Rn from 4% to 2%, in that order, for the cultivation without and with straw. The air temperature was higher in the straw crop after the canopy closure, while the air relative humidity was increased only in the first months. The modification of the microclimate due to the maintenance of the straw altered the leaf emission speed of the sugarcane, but little affected the radiation use efficiency by crop (~ 2.51 g MJ-1).
DOI: 10.6084/m9.figshare.8227343.v1
title: Technical analysis of water from rural sources

description: ABSTRACT The objective of this research was to evaluate the raw water sources as for the color, pH, ammonia level and presence of total and faecal coliforms. This water is used for household supply and at regional food agroindustry in Planalto Catarinense - Santa Catarina, Brazil, which was evaluated according to the standards of Brazilian National Council Legislation (Resolution no 2,914/2011 from the Ministry of Health). It is concluded that there was no change in water color, presenting a below the maximum allowable standard. There is a low concentration of ammonia in the water, the pH presented a variable between 5.5 to 7.5 and some samples showed contamination by faecal coliforms. In this way, this research demonstrated that the notification and orientation to landowners was required for disinfection of the water in order to eliminate any pathogenic agents.
DOI: 10.6084/m9.figshare.8227328
title: Bivariate Copula-based Linear Mixed-effects Models: An Application to Longitudinal Child Growth Data

description: ABSTRACT Multiple longitudinal outcomes are common in public health research and adequate methods are required when there is interest in the joint evolution of response variables over time. However, the main drawback of joint modeling procedures is the requirement to specify the joint density of all outcomes and their correlation structure, as well as numerical difficulties in statistical inference, when the dimension of these outcomes increases. To overcome such difficulty, we present two procedures to deal with multivariate longitudinal data. We first present an univariate approach, for which linear mixed-effects models are considered for each response variable separately. Then, a novel copula-based modeling is presented, in order to characterize relationships among the response variables. Both methodologies are applied to a real Brazilian data set on child growth.
DOI: 10.6084/m9.figshare.8227334.v1
title: Eggs of tegu lizard, Salvator merianae (Duméril & Bilbron, 1839) (Squamata; Teiidae) damaged by fungal infections

description: Abstract The tegu (Salvator merianae) is the largest lizard found in Brazil and has a wide distribution, occurring in several biomes. The presence of fungi on reptilian eggs initially occurs on infertile eggs, which leads to a subsequent infection in fertile eggs, causing damage and death of embryos. The objective of this study was to identify the fungi that caused lesions in the eggs of tegu in captivity. Swabs were collected on infected and healthy eggshells, in an embryo that died and the substrate of the incubation box. Samples were submitted to saboraund dextrose agar. A total of 93.3% of positive samples were obtained for the fungi Fusarium (11/14), Trichoderma (1/15), Penicilium (1/15), Mucor (1/15), and yeasts of the genus Trichosporon. Therefore, Fusarium was the main agent that caused the lesion and death of embryos in the eggs of the tegu lizard. Sanitary control methods may be taken to avoid fungal infections in the eggs.
DOI: 10.6084/m9.figshare.8227328.v1
title: Bivariate Copula-based Linear Mixed-effects Models: An Application to Longitudinal Child Growth Data

description: ABSTRACT Multiple longitudinal outcomes are common in public health research and adequate methods are required when there is interest in the joint evolution of response variables over time. However, the main drawback of joint modeling procedures is the requirement to specify the joint density of all outcomes and their correlation structure, as well as numerical difficulties in statistical inference, when the dimension of these outcomes increases. To overcome such difficulty, we present two procedures to deal with multivariate longitudinal data. We first present an univariate approach, for which linear mixed-effects models are considered for each response variable separately. Then, a novel copula-based modeling is presented, in order to characterize relationships among the response variables. Both methodologies are applied to a real Brazilian data set on child growth.
DOI: 10.6084/m9.figshare.8227319
title: Otimização Mono-objetivo no Controle do Mosquito Aedes aegypti por meio de um Modelo de Duas Populações com Influência da Precipitação

description: ABSTRACT Arboviruses transmitted by Aedes aegypti such as dengue, chikungunya, zika and yellow fever have affected a growing part of the world population over the years. Since there are no vaccines for all arboviruses transmitted by this vector, population vector control is the approach considered feasible to reduce the spread of arboviruses. The presente work has the goal of studying and comparing the efficacy of three mechanical control applications in the immature population (eggs, larvae and pupae) and to perform three chemical control applications on the population of females in the oviposition phase of A. aegypti. The control is applied during 7 days in different times of the year: Spring-Summer, Summer and Summer-Autumn. The entomological model that describes the dynamics of the phases of A. aegypti has precipitation-dependent parameters. The population of females in the oviposition phase of the model was confronted with sample data of Mean Female Aedes Index collected through 245 traps MosquiTRAP® scattered in the urban area of the city of Lavras. The Real-Biased Genetic Algorithm was used in order to optimize the intensity and the initial time of application of the step control in relation to control costs and costs related to mosquito infestation. During the application of the three forms of control interventions, the number of mosquitoes decreased over time and the summer-autumn intervention presented the best efficiency and the lowest cost. In addition, the number of mosquito basal offspring had a negative impact on the parameters related to mortality and an opposite impact of the other entomological parameters of the mosquito.
DOI: 10.6084/m9.figshare.8227313
title: Mathematical Modeling and Parameter Estimation of Battery Lifetime using a Combined Electrical Model and a Genetic Algorithm

description: ABSTRACT In this paper, a parametrization methodology based on the Genetic Algorithm meta-heuristic is proposed for the Chen and Rincón-Mora model parameter estimation, this model is utilized for the mathematical modeling of the Lithium-ion Polymer batteries lifetime used on mobile devices. The model is also parameterized using the conventional procedure, which is based on the visual analysis of pulsed discharge curves, as presented in the literature. For both parametrization procedures, and for the model validation, experimental data obtained from a platform test are used. The simulations results show that the proposed Genetic Algorithm is able to parametrize the model with better efficacy, presenting lower mean error, and it is also a more agile process than the conventional one, been less subject to subjective aspects.
DOI: 10.6084/m9.figshare.8227316
title: A Mathematical Model for Simulating Meteor Showers

description: ABSTRACT This paper presents a mathematical model to simulate the trajectory of a meteor as seen by a single observer located anywhere on Earth. Our strategy is to define a new coordinate system, called Radiant Coordinate System, which is centered on the observer and has its z-axis aligned with the radiant. This new coordinate system allows us to describe the meteors’ path by applying a reduced number of equations in a simple solution. We also present a computational implementation of this model, which is developed as a new plug-in of Stellarium, a free and open-source planetarium software. Moreover, we show that our model can be used to simulate both meteor showers and sporadic meteors. In particular, meteor showers are simulated using data provided by real catalogs.
DOI: 10.6084/m9.figshare.8227319.v1
title: Otimização Mono-objetivo no Controle do Mosquito Aedes aegypti por meio de um Modelo de Duas Populações com Influência da Precipitação

description: ABSTRACT Arboviruses transmitted by Aedes aegypti such as dengue, chikungunya, zika and yellow fever have affected a growing part of the world population over the years. Since there are no vaccines for all arboviruses transmitted by this vector, population vector control is the approach considered feasible to reduce the spread of arboviruses. The presente work has the goal of studying and comparing the efficacy of three mechanical control applications in the immature population (eggs, larvae and pupae) and to perform three chemical control applications on the population of females in the oviposition phase of A. aegypti. The control is applied during 7 days in different times of the year: Spring-Summer, Summer and Summer-Autumn. The entomological model that describes the dynamics of the phases of A. aegypti has precipitation-dependent parameters. The population of females in the oviposition phase of the model was confronted with sample data of Mean Female Aedes Index collected through 245 traps MosquiTRAP® scattered in the urban area of the city of Lavras. The Real-Biased Genetic Algorithm was used in order to optimize the intensity and the initial time of application of the step control in relation to control costs and costs related to mosquito infestation. During the application of the three forms of control interventions, the number of mosquitoes decreased over time and the summer-autumn intervention presented the best efficiency and the lowest cost. In addition, the number of mosquito basal offspring had a negative impact on the parameters related to mortality and an opposite impact of the other entomological parameters of the mosquito.
DOI: 10.6084/m9.figshare.8227316.v1
title: A Mathematical Model for Simulating Meteor Showers

description: ABSTRACT This paper presents a mathematical model to simulate the trajectory of a meteor as seen by a single observer located anywhere on Earth. Our strategy is to define a new coordinate system, called Radiant Coordinate System, which is centered on the observer and has its z-axis aligned with the radiant. This new coordinate system allows us to describe the meteors’ path by applying a reduced number of equations in a simple solution. We also present a computational implementation of this model, which is developed as a new plug-in of Stellarium, a free and open-source planetarium software. Moreover, we show that our model can be used to simulate both meteor showers and sporadic meteors. In particular, meteor showers are simulated using data provided by real catalogs.