cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.11452479.v1
title: Scheduling optimum planting window for gladiola based on El Niño Southern Oscillation

description: ABSTRACT: Gladiola is an important cut flower worldwide and scheduling field gladiola production is largely dependent on planting at the correct time since its development is controlled by the air temperature. The aim of this study was to configure a planting window of gladiola in order to harvest spikes to be sold on All Souls' Day and Mother's Day holidays in the state of Rio Grande do Sul, Brazil, taking into account the El Niño Southern Oscillation (ENSO) phases. The PhenoGlad model, a dynamic process-based simulation model that simulates gladiola phenology on a daily time step was used in this study. Daily minimum and maximum temperatures over 55 years (1961-2015) from 18 weather stations across Rio Grande do Sul state, Brazil, were used as input data in the PhenoGlad model. The optimum planting window was simulated for each maturity group, location and ENSO phase. For harvesting on All Souls' Day, the optimum planting window had greater variation among the different ENSO phases. For Mother's Day, only Very Strong El Niño events affected the development of gladiola, indicating the weak signal of the phenomenon at this time of the year. A case study in a commercial farm demonstrated the importance of these results for farmers. The planting window for production on Mother's Day in a Neutral year was successfully configured. Determining the optimum planting window by considering the ENSO effect led to a more precise scheduling of gladiola production in southern Brazil.
DOI: 10.6084/m9.figshare.11452464
title: Evaluation of autolysis induced histologic alterations in skeletal muscle tissue of non-traditional meat animals

description: Abstract Raw meat is characterized by various natural cellular processes that lead to its chemical content alteration. The purpose of the present study is to evaluate autolysis induced histologic alterations in skeletal muscle tissue of cow elk. In this study the authors used skeletal muscle tissue of 2-year-old cow elk. The tissue was sampled from m. quadriceps femoris. The study results showed that in 48 hours post mortem linear striation in muscle tissues was expressed. But 72 hours post mortem the integrity of muscle fibers degraded and they became inconsistently stained. The obtained data showed that post mortem alterations were characterized by significant degradation and separation of muscle fibers and nuclei and nuclear structures lysis.
DOI: 10.6084/m9.figshare.11452467
title: Theoretical and Numerical Aspects of a Third-order Three-point Nonhomogeneous Boundary Value Problem

description: ABSTRACT In this paper we are considering a third-order three-point equation with nonhomogeneous conditions in the boundary. Using Krasnoselskii’s Theorem and Leray-Schauder Alternative we provide existence results of positive solutions for this problem. Nontrivials examples are given and a numerical method is introduced.
DOI: 10.6084/m9.figshare.11452464.v1
title: Evaluation of autolysis induced histologic alterations in skeletal muscle tissue of non-traditional meat animals

description: Abstract Raw meat is characterized by various natural cellular processes that lead to its chemical content alteration. The purpose of the present study is to evaluate autolysis induced histologic alterations in skeletal muscle tissue of cow elk. In this study the authors used skeletal muscle tissue of 2-year-old cow elk. The tissue was sampled from m. quadriceps femoris. The study results showed that in 48 hours post mortem linear striation in muscle tissues was expressed. But 72 hours post mortem the integrity of muscle fibers degraded and they became inconsistently stained. The obtained data showed that post mortem alterations were characterized by significant degradation and separation of muscle fibers and nuclei and nuclear structures lysis.
DOI: 10.6084/m9.figshare.11452467.v1
title: Theoretical and Numerical Aspects of a Third-order Three-point Nonhomogeneous Boundary Value Problem

description: ABSTRACT In this paper we are considering a third-order three-point equation with nonhomogeneous conditions in the boundary. Using Krasnoselskii’s Theorem and Leray-Schauder Alternative we provide existence results of positive solutions for this problem. Nontrivials examples are given and a numerical method is introduced.
DOI: 10.6084/m9.figshare.11452458
title: Repeated geophysical measurements in dry and wet soil conditions to describe soil water content variability

description: ABSTRACT: There is an increasing interest in the application of geophysical surveys to assess the soil water content (SWC) variation in both spatial and temporal scales. In this work, a geophysical survey was carried out at an experimental farm in dry and wet conditions. We determined the SWC data measured with the gravimetric method, apparent electrical conductivity by electromagnetic induction (EMI) and amplitude of Ground Penetrating Radar (GPR) data at different frequencies. Geophysical sensors are an efficient tool for soil mapping at high resolution; however; there is a need to improve the knowledge on their capabilities and limitations under field conditions, especially for GPR. The geophysical survey provides an example of the application of these techniques to evaluate the spatial variability of SWC in two different water conditions. The contribution of geophysical data in understanding the spatial variability of SWC was investigated applying both the traditional analysis and spatial techniques. The results indicated that the geophysical data captured the spatial variation of SWC in non-invasively way especially in dry condition. However, they also showed the complex interplay between factors controlling SWC and geophysical responses and the drawbacks of geophysical sensors under inhomogeneous water conditions. Our findings also highlighted that EMI survey provides the potential to map the SWC variability within a relatively short time. The results obtained in this research are important from the agronomical viewpoint, since they allow increasing efficiency of irrigation practices, which is important in times characterized by climate change.
DOI: 10.6084/m9.figshare.11452458.v1
title: Repeated geophysical measurements in dry and wet soil conditions to describe soil water content variability

description: ABSTRACT: There is an increasing interest in the application of geophysical surveys to assess the soil water content (SWC) variation in both spatial and temporal scales. In this work, a geophysical survey was carried out at an experimental farm in dry and wet conditions. We determined the SWC data measured with the gravimetric method, apparent electrical conductivity by electromagnetic induction (EMI) and amplitude of Ground Penetrating Radar (GPR) data at different frequencies. Geophysical sensors are an efficient tool for soil mapping at high resolution; however; there is a need to improve the knowledge on their capabilities and limitations under field conditions, especially for GPR. The geophysical survey provides an example of the application of these techniques to evaluate the spatial variability of SWC in two different water conditions. The contribution of geophysical data in understanding the spatial variability of SWC was investigated applying both the traditional analysis and spatial techniques. The results indicated that the geophysical data captured the spatial variation of SWC in non-invasively way especially in dry condition. However, they also showed the complex interplay between factors controlling SWC and geophysical responses and the drawbacks of geophysical sensors under inhomogeneous water conditions. Our findings also highlighted that EMI survey provides the potential to map the SWC variability within a relatively short time. The results obtained in this research are important from the agronomical viewpoint, since they allow increasing efficiency of irrigation practices, which is important in times characterized by climate change.
DOI: 10.6084/m9.figshare.11452449
title: Perception and landscape in the everyday life of schools in rural and urban areas

description: Abstract: The study identified the perception of the environment by students from four schools located in cultural, rural and urban landscapes. In the students’ perception, identified using mind maps, there is a significant predominance of natural, biotic and abiotic elements, which indicates a naturalistic perception of the environment. Students demonstrated a perception of characteristic elements of the landscape surrounding the school and the city: trees, hills/mountains, streams and lakes/dams, thus highlighting the influence of the city’s landscape on the perception of the environment presented by them. The perception of the local landscape, expressed through daily life experiences, is a form of landscape reading constructed by the students via everyday experiences with the city’s landscape, thus presenting itself as an alternative to be used by teachers for environmental education through the reading of the landscape in which the schools are inserted.
DOI: 10.6084/m9.figshare.11452449.v1
title: Perception and landscape in the everyday life of schools in rural and urban areas

description: Abstract: The study identified the perception of the environment by students from four schools located in cultural, rural and urban landscapes. In the students’ perception, identified using mind maps, there is a significant predominance of natural, biotic and abiotic elements, which indicates a naturalistic perception of the environment. Students demonstrated a perception of characteristic elements of the landscape surrounding the school and the city: trees, hills/mountains, streams and lakes/dams, thus highlighting the influence of the city’s landscape on the perception of the environment presented by them. The perception of the local landscape, expressed through daily life experiences, is a form of landscape reading constructed by the students via everyday experiences with the city’s landscape, thus presenting itself as an alternative to be used by teachers for environmental education through the reading of the landscape in which the schools are inserted.
DOI: 10.6084/m9.figshare.11452443
title: Existence, Uniqueness, and Approximation for Solutions of a Functional-integral Equation in Lp Spaces

description: ABSTRACT In this work we consider the general functional-integral equation: y ( t ) = f ( t , ∫ 0 1 k ( t , s ) g ( s , y ( s ) ) d s ) , t ∈ [ 0 , 1 ] , and give conditions that guarantee existence and uniqueness of solution in L p ( [ 0 , 1 ] ), with 1 1 p ∞.We use Banach Fixed Point Theorem and employ the successive approximation method and Chebyshev quadrature for approximating the values of integrals. Finally, to illustrate the results of this work, we provide some numerical examples.
DOI: 10.6084/m9.figshare.11452443.v1
title: Existence, Uniqueness, and Approximation for Solutions of a Functional-integral Equation in Lp Spaces

description: ABSTRACT In this work we consider the general functional-integral equation: y ( t ) = f ( t , ∫ 0 1 k ( t , s ) g ( s , y ( s ) ) d s ) , t ∈ [ 0 , 1 ] , and give conditions that guarantee existence and uniqueness of solution in L p ( [ 0 , 1 ] ), with 1 1 p ∞.We use Banach Fixed Point Theorem and employ the successive approximation method and Chebyshev quadrature for approximating the values of integrals. Finally, to illustrate the results of this work, we provide some numerical examples.
DOI: 10.6084/m9.figshare.11452422
title: Fish Waste Oil in Laying Hens* Diets

description: ABSTRACT The present study aimed to evaluate increasing levels of fish waste oil in laying hens diets on performance, egg quality, and sensory features of the eggs. 192 Hisex White laying hens with 29 weeks of age were used, with water and food ad libitum. The experimental design was completely randomized consisting of eight treatments corresponding to the inclusion levels of fish waste oil (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5%) in the diets, with four replicates of six birds each. Data collected were subjected to polynomial regression at 5% of significance. Differences (p&lt;0.05) were observed in feed intake and egg mass. Feed intake increased until 2.50% of fish waste oil in the diets. Differences were not observed (p&gt;0.05) in all variables analyzed. Differences were observed (p&lt;0.05) in flavor. Eggs from birds fed diets up to 2.00% present better acceptance by the tasters. Above this level, there was a considerable drop in acceptance. From these results, the present study indicates that the use of fish waste oilin laying hens diets did not affect the egg quality. However, its high inclusion negatively affected the feed intake, egg mass, and egg flavor.
DOI: 10.6084/m9.figshare.11452422.v1
title: Fish Waste Oil in Laying Hens* Diets

description: ABSTRACT The present study aimed to evaluate increasing levels of fish waste oil in laying hens diets on performance, egg quality, and sensory features of the eggs. 192 Hisex White laying hens with 29 weeks of age were used, with water and food ad libitum. The experimental design was completely randomized consisting of eight treatments corresponding to the inclusion levels of fish waste oil (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5%) in the diets, with four replicates of six birds each. Data collected were subjected to polynomial regression at 5% of significance. Differences (p&lt;0.05) were observed in feed intake and egg mass. Feed intake increased until 2.50% of fish waste oil in the diets. Differences were not observed (p&gt;0.05) in all variables analyzed. Differences were observed (p&lt;0.05) in flavor. Eggs from birds fed diets up to 2.00% present better acceptance by the tasters. Above this level, there was a considerable drop in acceptance. From these results, the present study indicates that the use of fish waste oilin laying hens diets did not affect the egg quality. However, its high inclusion negatively affected the feed intake, egg mass, and egg flavor.
DOI: 10.6084/m9.figshare.11452395
title: Quality index of wastewater treated in overland flow systems

description: ABSTRACT The objective of this study was to evaluate the quality of treated domestic effluent using the surface runoff technique in slopes cultivated with forages. A quality index was adapted for fertigation and to group effluents that were similar in chemical characteristics using multivariate statistics. The experiment consists of a completely randomized design with a 3x2 subdivided plot scheme with 5 replicates. The plots had three forage species: black oat, ryegrass and rye and the subplots had two effluent rates applied in time: 50 and 100 kg ha-1 day-1 of BOD. The quality index was developed using the main components analysis, which provided a reduction of the 25 characteristics analyzed in the effluents in two components that explained 90.54% of the total variance. The quality index for the treated effluents presented high to low restriction in the fertigation and the raw effluent presented severe restriction. The cluster analysis formed three distinct groups of quality, which differed in the effluent application rate used in the treatment system.
DOI: 10.6084/m9.figshare.11452389
title: Estimation of virtual water use in Brazilian exports from 2003 to 2014

description: ABSTRACT The Virtual Water concept has long been used as an important indicator of water consumption, increasingly being accepted in the literature, becoming the embedded water in the production of a good or service. In order to estimate the volume of virtual water present in the top 25 products of Brazilian exports in the period 2003-2014, we used the exploratory method from the main products that represented approximately 60% of the collected amount. Results indicated a shift between the relevance of manufactured products and commodities (mainly iron ore and soybeans) in the 2009-2010 period, with only four products accounting in 2014 for 32% of the revenue earned by the country. As a result, the estimated virtual water expenditure for the products evaluated indicated that Brazil spent, on average, 191 Gm3.year-1 (about 6,025 m3.s-1), with commodities accounting for 95% of this volume. Considering only 2014, this flow increased to about 7,836 m3.s-1, 14 times higher than the supply demand of the Brazilian urban population.
DOI: 10.6084/m9.figshare.11452392
title: Drying kinetics of yellow mombin (Spondias mombin L.) epicarp

description: ABSTRACT Yellow mombin (Spondias mombin L.) fruits have relevant characteristics for industrialization and exhibit a pleasant aroma and sour-sweet taste, with significant amounts of vitamin A and carotenoids in their epicarp. The objective was to fit different mathematical models to the experimental data, using as criteria to select the best model - the Akaike Information Criteria (AIC) and Schwarz’s Bayesian Information Criteria (BIC), as well as to evaluate the effective diffusion coefficient and to determine the activation energy for yellow mombin epicarp submitted to different drying conditions. The experiment was carried out at the Instituto Federal de Educação, Ciência e Tecnologia Goiano, Brazil The epicarp of yellow mombin fruits with initial moisture content of 2.89 (dry basis, d.b.) were submitted to drying at temperatures of 40, 50, 60 and 70 °C until final moisture contents of 0.11, 0.10, 0.09 and 0.08 (d.b.), respectively. The Midilli model showed the best fit to the experimental data obtained. The choice of the model was confirmed by the AIC and BIC criteria. The increase of the drying temperature promoted increase in the effective diffusion coefficient, and the activation energy of the process was 21.50 kJ mol-1.
DOI: 10.6084/m9.figshare.11452395.v1
title: Quality index of wastewater treated in overland flow systems

description: ABSTRACT The objective of this study was to evaluate the quality of treated domestic effluent using the surface runoff technique in slopes cultivated with forages. A quality index was adapted for fertigation and to group effluents that were similar in chemical characteristics using multivariate statistics. The experiment consists of a completely randomized design with a 3x2 subdivided plot scheme with 5 replicates. The plots had three forage species: black oat, ryegrass and rye and the subplots had two effluent rates applied in time: 50 and 100 kg ha-1 day-1 of BOD. The quality index was developed using the main components analysis, which provided a reduction of the 25 characteristics analyzed in the effluents in two components that explained 90.54% of the total variance. The quality index for the treated effluents presented high to low restriction in the fertigation and the raw effluent presented severe restriction. The cluster analysis formed three distinct groups of quality, which differed in the effluent application rate used in the treatment system.
DOI: 10.6084/m9.figshare.11452389.v1
title: Estimation of virtual water use in Brazilian exports from 2003 to 2014

description: ABSTRACT The Virtual Water concept has long been used as an important indicator of water consumption, increasingly being accepted in the literature, becoming the embedded water in the production of a good or service. In order to estimate the volume of virtual water present in the top 25 products of Brazilian exports in the period 2003-2014, we used the exploratory method from the main products that represented approximately 60% of the collected amount. Results indicated a shift between the relevance of manufactured products and commodities (mainly iron ore and soybeans) in the 2009-2010 period, with only four products accounting in 2014 for 32% of the revenue earned by the country. As a result, the estimated virtual water expenditure for the products evaluated indicated that Brazil spent, on average, 191 Gm3.year-1 (about 6,025 m3.s-1), with commodities accounting for 95% of this volume. Considering only 2014, this flow increased to about 7,836 m3.s-1, 14 times higher than the supply demand of the Brazilian urban population.
DOI: 10.6084/m9.figshare.11452392.v1
title: Drying kinetics of yellow mombin (Spondias mombin L.) epicarp

description: ABSTRACT Yellow mombin (Spondias mombin L.) fruits have relevant characteristics for industrialization and exhibit a pleasant aroma and sour-sweet taste, with significant amounts of vitamin A and carotenoids in their epicarp. The objective was to fit different mathematical models to the experimental data, using as criteria to select the best model - the Akaike Information Criteria (AIC) and Schwarz’s Bayesian Information Criteria (BIC), as well as to evaluate the effective diffusion coefficient and to determine the activation energy for yellow mombin epicarp submitted to different drying conditions. The experiment was carried out at the Instituto Federal de Educação, Ciência e Tecnologia Goiano, Brazil The epicarp of yellow mombin fruits with initial moisture content of 2.89 (dry basis, d.b.) were submitted to drying at temperatures of 40, 50, 60 and 70 °C until final moisture contents of 0.11, 0.10, 0.09 and 0.08 (d.b.), respectively. The Midilli model showed the best fit to the experimental data obtained. The choice of the model was confirmed by the AIC and BIC criteria. The increase of the drying temperature promoted increase in the effective diffusion coefficient, and the activation energy of the process was 21.50 kJ mol-1.
DOI: 10.6084/m9.figshare.11452383
title: Physical-chemical characterization, microbiological and biocompounds of cashew pulp in industrial and freezing processing

description: Abstract This study aimed to evaluate the nutritional characteristics, bioactive compounds and microbiological quality during the processing and frozen storage of cashew pulps. Cashew pulps from 4 batches and 3 different sequential stages of industrial processing and storage (after pulping, after pulp thawing that was stored for 3 months in a drum, and 90 days after packaging in bugs and frozen storage at –20 °C) were obtained and submitted to the following analyses: pH, total soluble solids (TSS), color (L*, c* and H°), acidity, ascorbic acid, glucose reducing sugars, total phenols, antioxidant potential by reducing DPPH (1,1-diphenyl-2-picrylhydrazyl) and microbiological parameters (Fungi, psychrotrophic bacteria and coliforms). There was interaction between batches and processing steps for all evaluated parameters, except phenols in acetone extract. The acidity of all batches verified was below of the minimum value recommended by current legislation. Sugars, acidity, ascorbic acid and color were negatively affected during processing. The phenolic compounds presented slight modifications, with a slight increase between the first two stages. Although the antioxidant potential presented variations, there was no single response profile for all batches. High microbial counts were observed after pulping, however there were considerable reductions throughout the processing/storage.