cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5669266.v1
title: Understanding mammary activity in red-rumped agouti and implications for management and conservation of this Neotropical game species

description: Abstract The red-rumped agouti (Dasyprocta leporina) produces precocial young and is the most hunted and farmed game species in several Neotropical countries. An understanding of the reproductive biology, including the relationship between litter size and teat functionality is crucial for conservation management of this animal. In precocial mammals, as the red-rumped agouti, maintaining maternal contact to learn foraging patterns may be more important than the energy demands and nutritional constraints during lactation and suckling may not play important roles when compared to altricial mammals. Therefore, in this study we evaluated the relationship between mammary functionality with litter size, litter birth weight, and parturition number in captive red-rumped agouti. Functionality was assessed by manual palpation of teats from un-sedated females (N=43). We compared the average birth weight of all newborns, male newborns and female newborns among agoutis with different litter sizes and different parturitions by one way ANOVA’s, while Pearson’s Chi-squared tests were used to detect relationships between teat functionality, litter size, and parturition number. Parturition number had no effect on the mean birth weight of all young (F0.822, P &gt; 0.05), male young (F0.80, P &gt; 0.05) or female young (F0.66, P &gt; 0.05) in the litters. We found (i) no significant correlations (P &gt; 0.05) between teat functionality and litter size and (ii) no significant correlations (P &gt; 0.05) between teat functionality and parturition number. This suggests that whilst all teat pairs were functional, functionality was a poor indicator of litter size; suggesting that female agouti young may not have a high dependency on maternal nutrition; an possible evolutionary strategy resulting in large wild populations; hence its popularity as a game species.
DOI: 10.6084/m9.figshare.5669263
title: Influence of process conditions on the physicochemical properties of jussara pulp (Euterpe edulis) powder produced by spray drying

description: Abstract The objective of this work was to optimize the spray drying of jussara pulp using mixtures of modified starch (MS) with whey protein concentrate (WPC) or soy protein isolate (SPI) as the carrier agents. Two central composite rotatable designs were used to evaluate the effect of the independent variables of inlet air temperature (140 °C to 200 °C), carrier agent concentration - CAC (0.5 to 2 g carrier agent/g jussara pulp solids) and the proportions of MS:WPC or MS:SPI (5 to 30 g WPC or SPI/100 g carrier agent) on the following responses for powders formulated with MS:WPC and MS:SPI, respectively: moisture content (0.3% to 1.4% and 0.6% to 1.2%), solubility (78.0% to 92.9% and 78.9% to 83.8%), retention of total anthocyanins (49.2% to 82.9% and 34.1% to 96.9%), encapsulation efficiency (98.5% to 99.7% and 98.5% to 99.5%), hue angle (9.1 to 44.0 and 3.7 to 42.6), chroma (10.0 to 15.3 and 9.2 to 14.3) and process yield (33.2% to 55.5% and 49.9% to 78.5%). The inlet air temperature 170 °C, CAC of 1.25 and 2 g/g jussara pulp solids and proportion of MS:WPC or MS:SPI of 17.5 and 30 g/100 g were recommended as the selected conditions.
DOI: 10.6084/m9.figshare.5669263.v1
title: Influence of process conditions on the physicochemical properties of jussara pulp (Euterpe edulis) powder produced by spray drying

description: Abstract The objective of this work was to optimize the spray drying of jussara pulp using mixtures of modified starch (MS) with whey protein concentrate (WPC) or soy protein isolate (SPI) as the carrier agents. Two central composite rotatable designs were used to evaluate the effect of the independent variables of inlet air temperature (140 °C to 200 °C), carrier agent concentration - CAC (0.5 to 2 g carrier agent/g jussara pulp solids) and the proportions of MS:WPC or MS:SPI (5 to 30 g WPC or SPI/100 g carrier agent) on the following responses for powders formulated with MS:WPC and MS:SPI, respectively: moisture content (0.3% to 1.4% and 0.6% to 1.2%), solubility (78.0% to 92.9% and 78.9% to 83.8%), retention of total anthocyanins (49.2% to 82.9% and 34.1% to 96.9%), encapsulation efficiency (98.5% to 99.7% and 98.5% to 99.5%), hue angle (9.1 to 44.0 and 3.7 to 42.6), chroma (10.0 to 15.3 and 9.2 to 14.3) and process yield (33.2% to 55.5% and 49.9% to 78.5%). The inlet air temperature 170 °C, CAC of 1.25 and 2 g/g jussara pulp solids and proportion of MS:WPC or MS:SPI of 17.5 and 30 g/100 g were recommended as the selected conditions.
DOI: 10.6084/m9.figshare.5669260
title: Production of unripe banana flour (Musa spp) for application in whole wheat bread

description: Abstract Unripe banana flour (UBF) is a viable alternative for using the fruit, since it has a high resistant starch (RS) content which presents a physiological role similar to that of dietary fibre. The objective of this study was to produce UBF from two banana genotypes (Lady Finger and Cavendish), and select the one with the highest level of RS for subsequent replacement of part of the whole wheat flour by UBF in a formulation for whole wheat loaves. For the production of UBF, the fruits were peeled, cut into slices, submerged in a solution of ascorbic acid and citric acid, spread on trays, dried at 50 °C for 7 hours and then ground. The flours were submitted to proximate composition and RS content analyses. Whole wheat loaves were then processed, replacing 10%, 15% and 20% of the whole wheat flour by the UBF containing the highest resistant starch content. The control loaves and the one with the highest RS content and good technological characteristics, such as specific volume, hardness and colour, were submitted to a sensory test for acceptance and purchase intent. The resistant starch contents found in the Finger and Cavendish UBF samples were 24.1% and 13.7% respectively. Loaves with 15% substitution of the whole wheat flour by UBF were chosen for the sensory analysis. The Control loaf formulation and that with 15% UBF reached acceptance levels of 88.7% and 82.1%, respectively. The attitude of the judges was positive since 56% of them answered they would buy the bread with 15% UBF frequently or always, and none of the formulations were rejected.
DOI: 10.6084/m9.figshare.5669257
title: Antiproliferation effects and antioxidant activity of two new Lactobacillus strains

description: Abstract The microorganisms most commonly used as probiotics are lactic acid bacteria, especially those of the genus Lactobacillus. In the present study, two Lactobacillus strains, L. pentosus ITA23 and L. acidipiscis ITA44, previously isolated from mulberry silage, were characterized for their antiproliferative and antioxidant activities. The antiproliferative effects of the strains were investigated using the MTT assay with breast cancer (MDA-MB-231), liver cancer (HepG2) and normal liver (Chang) cell lines. The strains were tested for their antioxidant activity using the FRAP and ABTS methods. The results showed that the two Lactobacillus strains had good antiproliferative effects against both cancer cell lines tested, while their effects on the normal cells were weak. Based on the results of the antioxidant tests, the intact cells and cell-free extracts of the two Lactobacillus strains showed more than 135 and less than 50 µg trolox/ml of antioxidant activity, respectively. Lactobacillus pentosus ITA23 and L. acidipiscis ITA44 can be considered as potential probiotic candidates for humans because of their antioxidant activity and antiproliferation effects against cancer cells.
DOI: 10.6084/m9.figshare.5669257.v1
title: Antiproliferation effects and antioxidant activity of two new Lactobacillus strains

description: Abstract The microorganisms most commonly used as probiotics are lactic acid bacteria, especially those of the genus Lactobacillus. In the present study, two Lactobacillus strains, L. pentosus ITA23 and L. acidipiscis ITA44, previously isolated from mulberry silage, were characterized for their antiproliferative and antioxidant activities. The antiproliferative effects of the strains were investigated using the MTT assay with breast cancer (MDA-MB-231), liver cancer (HepG2) and normal liver (Chang) cell lines. The strains were tested for their antioxidant activity using the FRAP and ABTS methods. The results showed that the two Lactobacillus strains had good antiproliferative effects against both cancer cell lines tested, while their effects on the normal cells were weak. Based on the results of the antioxidant tests, the intact cells and cell-free extracts of the two Lactobacillus strains showed more than 135 and less than 50 µg trolox/ml of antioxidant activity, respectively. Lactobacillus pentosus ITA23 and L. acidipiscis ITA44 can be considered as potential probiotic candidates for humans because of their antioxidant activity and antiproliferation effects against cancer cells.
DOI: 10.6084/m9.figshare.5669254
title: Cadmium tolerance of Typha domingensis Pers. (Typhaceae) as related to growth and leaf morphophysiology

description: Abstract Typha domingensis (cattail) is a native macrophyte known by its capacity to tolerate several heavy metals effects and the potential use for phytoremediation. However, in despite that cadmium (Cd) is one of the most toxic pollutants; its effects in T. domingensis biology remain uninvestigated. Thus, the objective of this study was to study the tolerance of T. domingensis to cadmium contamination by evaluating its growth, Cd uptake, leaf anatomy and gas exchange. The experiment was designed using three cadmium concentrations (0, 10 and 50 µM) and ten replicates for 90 days. The cadmium uptake, growth, gas exchange, chlorophyll content and leaf anatomy were evaluated. Data was submitted to ANOVA and Scott-Knott test for P&lt;0.05. Typha domingensis accumulates Cd proportionally to its concentration on the solution and the content of this metal was higher in roots as compared to shoots. Plants showed no significant modifications on growth parameters such as the biomass production, number of leaves, number of clones and the biomass allocation to organs. The photosynthesis, transpiration and chlorophyll content were not modified by Cd. Most anatomical traits evaluated were not modified by the metal but the stomatal density and the proportion of vascular tissues were reduced under 50 µM of Cd. In despite, the leaf anatomy showed no toxicity evidences for any Cd level. The absence of growth reduction and the stability of anatomical and physiological traits give insight about the Cd tolerance of this species. Therefore, T. domingensis is able to overcome Cd toxicity and shows potential for phytoremediation.
DOI: 10.6084/m9.figshare.5669254.v1
title: Cadmium tolerance of Typha domingensis Pers. (Typhaceae) as related to growth and leaf morphophysiology

description: Abstract Typha domingensis (cattail) is a native macrophyte known by its capacity to tolerate several heavy metals effects and the potential use for phytoremediation. However, in despite that cadmium (Cd) is one of the most toxic pollutants; its effects in T. domingensis biology remain uninvestigated. Thus, the objective of this study was to study the tolerance of T. domingensis to cadmium contamination by evaluating its growth, Cd uptake, leaf anatomy and gas exchange. The experiment was designed using three cadmium concentrations (0, 10 and 50 µM) and ten replicates for 90 days. The cadmium uptake, growth, gas exchange, chlorophyll content and leaf anatomy were evaluated. Data was submitted to ANOVA and Scott-Knott test for P&lt;0.05. Typha domingensis accumulates Cd proportionally to its concentration on the solution and the content of this metal was higher in roots as compared to shoots. Plants showed no significant modifications on growth parameters such as the biomass production, number of leaves, number of clones and the biomass allocation to organs. The photosynthesis, transpiration and chlorophyll content were not modified by Cd. Most anatomical traits evaluated were not modified by the metal but the stomatal density and the proportion of vascular tissues were reduced under 50 µM of Cd. In despite, the leaf anatomy showed no toxicity evidences for any Cd level. The absence of growth reduction and the stability of anatomical and physiological traits give insight about the Cd tolerance of this species. Therefore, T. domingensis is able to overcome Cd toxicity and shows potential for phytoremediation.
DOI: 10.6084/m9.figshare.5669251
title: Mathematical modeling of the foam-mat drying curves of guava pulp

description: ABSTRACT In foam-mat drying, the liquid food is foamed by the addition of a foaming agent, for example, albumin. The aim of this study was to evaluate the adjustment of mathematical models to foam mat drying curves of guava pulp. The fits were evaluated using samples with 4 and 8% albumin (m m-1) and drying temperatures of 75, 80 and 85 °C. The samples were placed on aluminum trays. Drying was carried out in a tray dryer. The Lewis, Page, Midilli and Logarithmic models were fitted to the experimental data and evaluated based on the coefficient of determination (R2), root-mean-square error (RMSE) and chi-square test. All models fitted well to experimental data and Midilli was the best. Albumin concentration and temperature influenced the drying rate; the lowest drying times occurred for the highest albumin concentration and highest drying temperature.
DOI: 10.6084/m9.figshare.5669251.v1
title: Mathematical modeling of the foam-mat drying curves of guava pulp

description: ABSTRACT In foam-mat drying, the liquid food is foamed by the addition of a foaming agent, for example, albumin. The aim of this study was to evaluate the adjustment of mathematical models to foam mat drying curves of guava pulp. The fits were evaluated using samples with 4 and 8% albumin (m m-1) and drying temperatures of 75, 80 and 85 °C. The samples were placed on aluminum trays. Drying was carried out in a tray dryer. The Lewis, Page, Midilli and Logarithmic models were fitted to the experimental data and evaluated based on the coefficient of determination (R2), root-mean-square error (RMSE) and chi-square test. All models fitted well to experimental data and Midilli was the best. Albumin concentration and temperature influenced the drying rate; the lowest drying times occurred for the highest albumin concentration and highest drying temperature.
DOI: 10.6084/m9.figshare.5669248
title: Family context and the physical activity of adolescents: comparing differences

description: ABSTRACT: Introduction: Family context plays an important role with regard to the physical activity (PA) of adolescents. Intense changes in family composition, including an increase of single-parent structures can affect behavior. Objective: To estimate the prevalence of PA, between boys and girls of 11-17 years old, and investigate its association with family context variables. Methods: A cross-sectional population-based study “The BH Health Study” was conducted in two health districts of Belo Horizonte. The outcome was PA (≥ 300 minutes/week), which was created from a score that combined time and frequency of cycling and walking to school and leisure time. The independent variables were family context, sociodemographic characteristics and nutritional status. Poisson regression was used with a robust variance and was stratified by gender. Results: 1,015 adolescents participated, 52.8% of whom were male, with a mean age of 14 (± 1.9) years old. The prevalence of PA was 38.8% for girls and 54.5% for boys. Among girls, the family context variables were not significantly associated with PA. Boys were more active when there was an adult in the household reported who did PA (PR = 1.26; 95%CI 1.02 - 1.55) and when living with a single mother (PR = 1.63; 95%CI 1.01 - 2.63). It was also observed that boys that live with their mother and father (PR=1.90; 95%CI 1.06 - 3.41) or only with their mother (PR = 1.82; 95%CI 1.01 - 3.27) reported did PA more frequently in their free time. Conclusion: The presence of an active adult in the household, mainly the mother, appears to be an important factor associated with boys’ PA.
DOI: 10.6084/m9.figshare.5669248.v1
title: Family context and the physical activity of adolescents: comparing differences

description: ABSTRACT: Introduction: Family context plays an important role with regard to the physical activity (PA) of adolescents. Intense changes in family composition, including an increase of single-parent structures can affect behavior. Objective: To estimate the prevalence of PA, between boys and girls of 11-17 years old, and investigate its association with family context variables. Methods: A cross-sectional population-based study “The BH Health Study” was conducted in two health districts of Belo Horizonte. The outcome was PA (≥ 300 minutes/week), which was created from a score that combined time and frequency of cycling and walking to school and leisure time. The independent variables were family context, sociodemographic characteristics and nutritional status. Poisson regression was used with a robust variance and was stratified by gender. Results: 1,015 adolescents participated, 52.8% of whom were male, with a mean age of 14 (± 1.9) years old. The prevalence of PA was 38.8% for girls and 54.5% for boys. Among girls, the family context variables were not significantly associated with PA. Boys were more active when there was an adult in the household reported who did PA (PR = 1.26; 95%CI 1.02 - 1.55) and when living with a single mother (PR = 1.63; 95%CI 1.01 - 2.63). It was also observed that boys that live with their mother and father (PR=1.90; 95%CI 1.06 - 3.41) or only with their mother (PR = 1.82; 95%CI 1.01 - 3.27) reported did PA more frequently in their free time. Conclusion: The presence of an active adult in the household, mainly the mother, appears to be an important factor associated with boys’ PA.
DOI: 10.6084/m9.figshare.5669245
title: Soybean development as a function of traffic of tractor with radial tires

description: ABSTRACT This study aimed to evaluate the development of soybean as a function of traffic levels of an agricultural tractor equipped with radial tires in two collection areas. The experiment was conducted in an area located at the State University of Maringá, Campus of Umuarama-PR, Brazil, in a soil classified as Red Oxisol with sandy texture. The experiment was set in a 5 x 2 factorial arrangement, with five levels of traffic on the same track (T1 = 1, T2 = 6, T3 = 11, T4 = 16 and T5 = 21 tractor passes), two collection areas (A1 = on the track and A2 = off the track) and four replicates. Soil physical parameters and characteristics of the soybean plants were evaluated. Soybean yield on the track did not show significant difference up to 6 passes. It was concluded that the traffic levels and soil resistance to penetration interfere with soybean yield for both collection areas.
DOI: 10.6084/m9.figshare.5669245.v1
title: Soybean development as a function of traffic of tractor with radial tires

description: ABSTRACT This study aimed to evaluate the development of soybean as a function of traffic levels of an agricultural tractor equipped with radial tires in two collection areas. The experiment was conducted in an area located at the State University of Maringá, Campus of Umuarama-PR, Brazil, in a soil classified as Red Oxisol with sandy texture. The experiment was set in a 5 x 2 factorial arrangement, with five levels of traffic on the same track (T1 = 1, T2 = 6, T3 = 11, T4 = 16 and T5 = 21 tractor passes), two collection areas (A1 = on the track and A2 = off the track) and four replicates. Soil physical parameters and characteristics of the soybean plants were evaluated. Soybean yield on the track did not show significant difference up to 6 passes. It was concluded that the traffic levels and soil resistance to penetration interfere with soybean yield for both collection areas.
DOI: 10.6084/m9.figshare.5669242
title: EDUCATIONG THROUGH PARTICIPATION, DEMOCRATIZING POWER: FREIREAN LEGACY IN PUBLIC ADMINISTATION

description: ABSTRACT: Popular education was an important force in the promotion of political reforms in Latin America in the last decades. This relation with the established public powers also originates a new relation with the state, thus this theme becoming presently an important practical-theoretical challenge. In this paper, we analyze the presence and legacy of Paulo Freire, a central reference in popular education, through empirical research in participatory budget (PB)and in the State System of Popular and Citizen Participation in Rio Grande do Sul, Brazil as much in its formulation as in its effectivenessin social practices. The challenge is to understand, based on Freire´s assumptions, whether the observed experiences of participation have developed educational processes that promote the democratization of power. The results, as mentioned in the article, point to a series of factors that limit or inhibit the formative potential of the process.
DOI: 10.6084/m9.figshare.5669242.v1
title: EDUCATIONG THROUGH PARTICIPATION, DEMOCRATIZING POWER: FREIREAN LEGACY IN PUBLIC ADMINISTATION

description: ABSTRACT: Popular education was an important force in the promotion of political reforms in Latin America in the last decades. This relation with the established public powers also originates a new relation with the state, thus this theme becoming presently an important practical-theoretical challenge. In this paper, we analyze the presence and legacy of Paulo Freire, a central reference in popular education, through empirical research in participatory budget (PB)and in the State System of Popular and Citizen Participation in Rio Grande do Sul, Brazil as much in its formulation as in its effectivenessin social practices. The challenge is to understand, based on Freire´s assumptions, whether the observed experiences of participation have developed educational processes that promote the democratization of power. The results, as mentioned in the article, point to a series of factors that limit or inhibit the formative potential of the process.
DOI: 10.6084/m9.figshare.5669239
title: Nitrogen Fertilization of No-Tillage Winter Cereals in the South-Central Region of Paraná, Brazil

description: ABSTRACT High winter cereal yields depend on an adequate supply of nitrogen (N). We developed a system for indicating N rates for wheat and barley in the South-Central region of the state of Paraná, Brazil, using results of 72 field experiments conducted from 2007 to 2012. The N rates recommended for winter cereals were estimated to supply the amounts of N fertilizer needed to obtain increasing yields (&lt;3.5, 3.5-4.5, 4.5-5.5, and &gt;5.5 Mg ha-1) of crops grown after soybean and corn on soils with a variable organic matter content (&lt;40, 40-60, and &gt;60 g dm-3). The apparent mineralization rate of soil N was estimated to be 1 % and the N fertilization efficiency 50 %. The N rates recommended for wheat ranged from 30 to 150 kg ha-1 when cultivated after soybean, and from 30 to 170 kg ha-1 after corn. The N rates for barley ranged from 30 to 120 kg ha-1 when grown after soybean, and from 30 to 130 kg ha-1 after corn. These N rates are consistent with those indicated by the Soil Fertility Commission for the states of Rio Grande do Sul and Santa Catarina (CQFS-RS/SC, 2016), and also with the rates of maximum economic efficiency estimated in our study. The proposed N rate recommendation system can be used by agricultural technicians and producers to manage N fertilization of wheat and barley in the South-Central region of Paraná, Brazil.