cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.23290715
title: Effects of time-dependent degradation and freezing on biomechanical properties of healthy bovine jejunum

description: ABSTRACT Degradation of bovine small intestine and respective effects on biomechanics have not been described to date. Biomechanical testing of intestinal tissues is often carried out within a few hours of donor death and tissue deterioration is not accounted for. Freezing is efficient for the preservation of several tissues; however, it may cause cellular damage. This study investigated the morphologic and biomechanical changes of bovine jejunum at different postmortem moments. Effects of freezing and thawing on morphology and biomechanical behavior were also examined. Macroscopic changes were first noted within eight hours of death. At this time, histologic changes also started to set in, and biomechanical tests revealed lower bursting pressure (203.10±46.14mmHg). At 12 hours, tissue rearrangement was noted, and bursting pressure increased (238.43±31.04mmHg). A second drop in pressure was detected at 18 hours (235.20±38.21mmHg), followed by a progressive drop until the end of the experimental period. Histologic changes revealed progressive deterioration. Mechanical resistance did not differ between thawed and fresh specimens. It was concluded that bovine jejunal specimens retain biomechanical resistance up to 6 hours after death. Freezing and thawing did not affect the mechanical resistance of the intestinal wall in this experimental model.
DOI: 10.6084/m9.figshare.23290715.v1
title: Effects of time-dependent degradation and freezing on biomechanical properties of healthy bovine jejunum

description: ABSTRACT Degradation of bovine small intestine and respective effects on biomechanics have not been described to date. Biomechanical testing of intestinal tissues is often carried out within a few hours of donor death and tissue deterioration is not accounted for. Freezing is efficient for the preservation of several tissues; however, it may cause cellular damage. This study investigated the morphologic and biomechanical changes of bovine jejunum at different postmortem moments. Effects of freezing and thawing on morphology and biomechanical behavior were also examined. Macroscopic changes were first noted within eight hours of death. At this time, histologic changes also started to set in, and biomechanical tests revealed lower bursting pressure (203.10±46.14mmHg). At 12 hours, tissue rearrangement was noted, and bursting pressure increased (238.43±31.04mmHg). A second drop in pressure was detected at 18 hours (235.20±38.21mmHg), followed by a progressive drop until the end of the experimental period. Histologic changes revealed progressive deterioration. Mechanical resistance did not differ between thawed and fresh specimens. It was concluded that bovine jejunal specimens retain biomechanical resistance up to 6 hours after death. Freezing and thawing did not affect the mechanical resistance of the intestinal wall in this experimental model.
DOI: 10.6073/pasta/2f98514b96b21d04eaa8857ae807e88d
title: Jornada Basin LTER: Wireless meteorological station at NPP M-WELL site: 1-hour summary data: 2013 - ongoing

description: Hourly summary data at NPP M-WELL met station. Average/maximum/minimum air temperature; average relative humidity and wind direction; average/maximum wind speed. These are measured and calculated based on 1-second scan rate of all sensors located at an automated meteorological station installed at Jornada LTER NPP M-WELL site. Wind speed is measured at 75 cm, 150 cm, and 300 cm, wind direction at approximately 3m, and air temperature and relative humidity at approximate 2.5m. This climate station is operated by the Jornada LTER Program. This is an ONGOING dataset.
DOI: 10.6084/m9.figshare.23290718
title: Search and inflation

description: ABSTRACT To understand the macroeconomic aspects of inflation, it is necessary to investigate what happens ai the microeconomic level. Inflation affects microeconomic interaction between firms and consumers in a substantial way. Firms choose pricing rules that affect consumer’s search. The search is realized across firms and through time. The theory does not provide a clear answer to the effect of inflation on welfare. On one hand, because of adjustment costs, a higher inflation is associated with a higher dispersion of prices, making search more attractive. On the other hand, it deteriorates the information content of prices, reducing the ability of consumers of taking advantage of search. This article surveys the very recent contributions to this field. It argues that although we can get important insights from those articles, none of them provide a satisfactory answer to the question that has puzzled macroeconomists for more than two decades: how to explain the social costs of inflation?
DOI: 10.6084/m9.figshare.23290720
title: Benefits of progressive resistance training on motor performance and muscular hypertrophy in rats with Parkinson’s disease

description: ABSTRACT Parkinson’s disease (PD) is a progressive neurodegenerative condition defined by the presence of primary debilitating motor symptoms. This study aims to investigate the benefits of high-intensity progressive resistance training on muscle tissue and motor performance before and after the induction of PD in rats. A total of 80 male Wistar rats (Rattus norvegicus, var. albinus) aged 40 days and weighing between 250 and 450g were used. A total of 40 animals were subjected to PD surgery to induce electrolytic injury and were randomly assigned to the following subgroups: animals trained before PD induction (PA-Exa); animals trained after PD induction (PA-Exd); animals trained before and after PD induction (PA-Exad); and sedentary animals with PD induction (PA-Sed). The other 40 animals (control) were subjected to surgical access but not to PD electrolytic injury (Sham) and distributed in the same subgroups described above. For the PD induction surgery, electrolytic stimulation was used at the following coordinates: anteroposterior (AP) −4.9, mid-lateral (ML) 1.7,and dorsoventral (DV) 8.1. High-intensity progressive resistance training was performed on a vertical ladder five days/week from 30 to 45 minutes for four weeks. For our functional evaluation, the parallel bars and the misstep tests were used at the beginning (after surgery) and at the end of the experiment. After euthanasia, the forelimb biceps and hindlimb flexor hallucis longus muscles were removed. Processing, coloration, and histomorphometry analysis of muscle tissue were performed for all groups. To analyze the data, GraphPad Prism 9.4 was used with one-way analysis of variance (ANOVA) and a p&lt;0.05. Data on muscle fiber count and area in forelimb biceps showed no significant differences, with a 0.853 and 0.4122 p-value, respectively. Flexor hallucis longus muscle fiber count showed a significant difference (p=0.0356), and PA-Exa and PA-Exd averaged the highest means. Hindlimb flexor hallucis longus muscle fiber area also evinced a significant difference (p=0.0306), in which PA-Exd, PA-Exad, and Sham-Exad showed the largest areas. Analysis of hindlegs in the parallel bars test showed that PA-Exad evinced the best functional performance. In the misstep test, we observed an increase in the number of errors animals made for almost all the groups, evincing a significant difference in the number of errors before and after the test only for PA-Exa, PA-Exd, and PA-Sed. We concluded that the animals that underwent high-intensity progressive training showed better performance in their hindlegs than in their fore ones and that animals that exercised before and after surgery benefited more from training.
DOI: 10.6084/m9.figshare.23290720.v1
title: Benefits of progressive resistance training on motor performance and muscular hypertrophy in rats with Parkinson’s disease

description: ABSTRACT Parkinson’s disease (PD) is a progressive neurodegenerative condition defined by the presence of primary debilitating motor symptoms. This study aims to investigate the benefits of high-intensity progressive resistance training on muscle tissue and motor performance before and after the induction of PD in rats. A total of 80 male Wistar rats (Rattus norvegicus, var. albinus) aged 40 days and weighing between 250 and 450g were used. A total of 40 animals were subjected to PD surgery to induce electrolytic injury and were randomly assigned to the following subgroups: animals trained before PD induction (PA-Exa); animals trained after PD induction (PA-Exd); animals trained before and after PD induction (PA-Exad); and sedentary animals with PD induction (PA-Sed). The other 40 animals (control) were subjected to surgical access but not to PD electrolytic injury (Sham) and distributed in the same subgroups described above. For the PD induction surgery, electrolytic stimulation was used at the following coordinates: anteroposterior (AP) −4.9, mid-lateral (ML) 1.7,and dorsoventral (DV) 8.1. High-intensity progressive resistance training was performed on a vertical ladder five days/week from 30 to 45 minutes for four weeks. For our functional evaluation, the parallel bars and the misstep tests were used at the beginning (after surgery) and at the end of the experiment. After euthanasia, the forelimb biceps and hindlimb flexor hallucis longus muscles were removed. Processing, coloration, and histomorphometry analysis of muscle tissue were performed for all groups. To analyze the data, GraphPad Prism 9.4 was used with one-way analysis of variance (ANOVA) and a p&lt;0.05. Data on muscle fiber count and area in forelimb biceps showed no significant differences, with a 0.853 and 0.4122 p-value, respectively. Flexor hallucis longus muscle fiber count showed a significant difference (p=0.0356), and PA-Exa and PA-Exd averaged the highest means. Hindlimb flexor hallucis longus muscle fiber area also evinced a significant difference (p=0.0306), in which PA-Exd, PA-Exad, and Sham-Exad showed the largest areas. Analysis of hindlegs in the parallel bars test showed that PA-Exad evinced the best functional performance. In the misstep test, we observed an increase in the number of errors animals made for almost all the groups, evincing a significant difference in the number of errors before and after the test only for PA-Exa, PA-Exd, and PA-Sed. We concluded that the animals that underwent high-intensity progressive training showed better performance in their hindlegs than in their fore ones and that animals that exercised before and after surgery benefited more from training.
DOI: 10.6084/m9.figshare.23290721
title: Income distribution in Brazil: evaluation of the long-term tendencies and changes in inequality since mid-1970s

description: ABSTRACT The paper analyses the Brazilian size distribution of income with the objective of identifying to what extent economic policies, macroeconomic performance and changes in the structure of the labor force are related to inequality. There is evidence of long term increases in inequality, especially between 1960 and 1970. Long term trends do not seem to be affected by economic performance, although the stagnation of the 1980s has led to absolute income losses for all individuals except those in the top percentile. Short term behavior, on the other hand, seems to have been influenced by economic performance: there is evidence that growth enhances equity, whereas high inflation has the opposite effect. A decomposition analysis highlights the importance of education in explaining inequality, but points to changes in the structure of the labor force as the major factor in accounting for changes in inequality since the mid-1970s.
DOI: 10.6084/m9.figshare.23290721.v1
title: Income distribution in Brazil: evaluation of the long-term tendencies and changes in inequality since mid-1970s

description: ABSTRACT The paper analyses the Brazilian size distribution of income with the objective of identifying to what extent economic policies, macroeconomic performance and changes in the structure of the labor force are related to inequality. There is evidence of long term increases in inequality, especially between 1960 and 1970. Long term trends do not seem to be affected by economic performance, although the stagnation of the 1980s has led to absolute income losses for all individuals except those in the top percentile. Short term behavior, on the other hand, seems to have been influenced by economic performance: there is evidence that growth enhances equity, whereas high inflation has the opposite effect. A decomposition analysis highlights the importance of education in explaining inequality, but points to changes in the structure of the labor force as the major factor in accounting for changes in inequality since the mid-1970s.
DOI: 10.6084/m9.figshare.23290724
title: Paclobutrazol as a strategy to induce reproductive precocity in sour passion fruit

description: Abstract The adoption of growth regulators can be an alternative method to modulate the quality of the propagation material and obtain reproductive precocity. The objective was to evaluate if a gibberellin biosynthesis inhibitor affects the morphophysiological, biochemical and anatomical parameters of sour passion fruit seedlings and if such alterations affect the reproductive period. Two trials were conducted. In trial I, 40 days after emergence, the seedlings were immersed up to the substrate level in paclobutrazol (PBZ) solutions at concentrations of: 0, 40, 80, 120 and 160 mg L-1. At 45 days after the application of PBZ - DAA, the morphophysiology, biochemistry and anatomy were evaluated. Trail II was conducted in pots, using seedlings from trail I with 45 DAA of PBZ. At 200 days after transplanting, accumulation of shoots and roots fresh and dry mass (g), flowering speed index, total number of reproductive organs and SPAD index were evaluated. In seedlings, restriction of shoot growth induced by PBZ was associated with root increment, seedling quality, photosynthetic pigments and optimization of gas exchange. A shorter period of transition from the juvenile – vegetative phase to reproductive is observed when the seedlings were submitted to PBZ concentrations.
DOI: 10.6084/m9.figshare.23290724.v1
title: Paclobutrazol as a strategy to induce reproductive precocity in sour passion fruit

description: Abstract The adoption of growth regulators can be an alternative method to modulate the quality of the propagation material and obtain reproductive precocity. The objective was to evaluate if a gibberellin biosynthesis inhibitor affects the morphophysiological, biochemical and anatomical parameters of sour passion fruit seedlings and if such alterations affect the reproductive period. Two trials were conducted. In trial I, 40 days after emergence, the seedlings were immersed up to the substrate level in paclobutrazol (PBZ) solutions at concentrations of: 0, 40, 80, 120 and 160 mg L-1. At 45 days after the application of PBZ - DAA, the morphophysiology, biochemistry and anatomy were evaluated. Trail II was conducted in pots, using seedlings from trail I with 45 DAA of PBZ. At 200 days after transplanting, accumulation of shoots and roots fresh and dry mass (g), flowering speed index, total number of reproductive organs and SPAD index were evaluated. In seedlings, restriction of shoot growth induced by PBZ was associated with root increment, seedling quality, photosynthetic pigments and optimization of gas exchange. A shorter period of transition from the juvenile – vegetative phase to reproductive is observed when the seedlings were submitted to PBZ concentrations.
DOI: 10.6084/m9.figshare.23290726
title: Population size regulation is density-dependent in Rhodnius prolixus (Hemiptera: Reduviidae) through an irritability mechanism

description: BACKGROUND Physical factors can determine the level of triatomine abundance, but do not regulate their population densities, and neither do natural enemies. OBJECTIVES To identify the processes associated with density-dependent triatomine population regulation. METHODS We set-up a laboratory experiment with four interconnected boxes; the central box harbored Rhodnius prolixus bugs and one hamster. Stage 5 and adult densities of 10, 20, 30, 40, and 60 bugs per hamster, were replicated four times (except the density of 60 bugs). Hamster’s irritability and several triatomine responses were measured: feeding, development time and longevity, mortality, fecundity, dispersal, and the net reproductive value (R o ). FINDINGS Density had a statistically significant effect on irritability, but not on the percent of bugs feeding. Density was significant on blood meal size ingested in bugs that did not move between boxes, but not significant when the bugs moved. Density and irritability affected the proportion of stage 5 nymphs molting, and the proportion of adult bugs dying per day and over a three-week period. There was a highly significant effect of density and irritability on R o . MAIN CONCLUSIONS We showed that a density-dependent mechanism, acting through the irritability of the host, seems the most plausible process regulating populations in triatomines.
DOI: 10.6084/m9.figshare.23290726.v1
title: Population size regulation is density-dependent in Rhodnius prolixus (Hemiptera: Reduviidae) through an irritability mechanism

description: BACKGROUND Physical factors can determine the level of triatomine abundance, but do not regulate their population densities, and neither do natural enemies. OBJECTIVES To identify the processes associated with density-dependent triatomine population regulation. METHODS We set-up a laboratory experiment with four interconnected boxes; the central box harbored Rhodnius prolixus bugs and one hamster. Stage 5 and adult densities of 10, 20, 30, 40, and 60 bugs per hamster, were replicated four times (except the density of 60 bugs). Hamster’s irritability and several triatomine responses were measured: feeding, development time and longevity, mortality, fecundity, dispersal, and the net reproductive value (R o ). FINDINGS Density had a statistically significant effect on irritability, but not on the percent of bugs feeding. Density was significant on blood meal size ingested in bugs that did not move between boxes, but not significant when the bugs moved. Density and irritability affected the proportion of stage 5 nymphs molting, and the proportion of adult bugs dying per day and over a three-week period. There was a highly significant effect of density and irritability on R o . MAIN CONCLUSIONS We showed that a density-dependent mechanism, acting through the irritability of the host, seems the most plausible process regulating populations in triatomines.
DOI: 10.6084/m9.figshare.23290729
title: Artificial neural networks discriminate lettuce seeds with different levels of thermoinhibition

description: Abstract: The thermoinhibition of lettuce seed germination causes important losses for producers, who do not have thermotolerant commercial cultivars. One of the obstacles has been the scarcity of optimizing techniques capable of efficiently discriminating thermotolerant and thermosensitive cultivars. The aim of this work was to evaluate the use of neural networks to discriminate different levels of thermoinhibition in lettuce seeds. Seeds of 18 cultivars were evaluated for thermoinhibition considering the characteristics of the first and last germination count and germination speed index, in seeds subjected to temperatures of 20, 25, 30 and 35 °C. The remaining seeds, which did not germinate, were subjected to the tetrazolium test. Analyses were performed immediately after seed harvesting and repeated after six months of storage. Discriminant analysis was performed and the Kohonen’s Self-Organizing Map (SOM) was created using Artificial Neural Networks (ANNs). Neural networks discriminate lettuce cultivars and organizes them in terms of seed thermoinhibition tolerance through Kohonen’s Self-Organizing Map. Discriminant analysis consistently identifies the Everglades and Luiza genotypes as tolerant to thermoinhibition.
DOI: 10.6084/m9.figshare.23290729.v1
title: Artificial neural networks discriminate lettuce seeds with different levels of thermoinhibition

description: Abstract: The thermoinhibition of lettuce seed germination causes important losses for producers, who do not have thermotolerant commercial cultivars. One of the obstacles has been the scarcity of optimizing techniques capable of efficiently discriminating thermotolerant and thermosensitive cultivars. The aim of this work was to evaluate the use of neural networks to discriminate different levels of thermoinhibition in lettuce seeds. Seeds of 18 cultivars were evaluated for thermoinhibition considering the characteristics of the first and last germination count and germination speed index, in seeds subjected to temperatures of 20, 25, 30 and 35 °C. The remaining seeds, which did not germinate, were subjected to the tetrazolium test. Analyses were performed immediately after seed harvesting and repeated after six months of storage. Discriminant analysis was performed and the Kohonen’s Self-Organizing Map (SOM) was created using Artificial Neural Networks (ANNs). Neural networks discriminate lettuce cultivars and organizes them in terms of seed thermoinhibition tolerance through Kohonen’s Self-Organizing Map. Discriminant analysis consistently identifies the Everglades and Luiza genotypes as tolerant to thermoinhibition.
DOI: 10.6084/m9.figshare.23290730.v1
title: Use of ozonized sunflower oil in the treatment of skin injury in golden hamster (Mesocricetus auratus) - case report]

description: ABSTRACT Hamster breeding is becoming increasingly popular, mainly because of the simplicity of breeding, low cost, and characteristics of these animals: they are small, quiet, and do not require a large space. Because of this ease of keeping, some people choose to keep more than one animal of the same species in a single enclosure. In some cases, this sociability can lead to fights, because hamsters are extremely territorial animals, which can cause significant injuries. Knowledge of the most efficient methods for wound healing is essential in medicine for wild and exotic animals, as it allows faster clinical treatment and thus, stress reduction. The present case report refers to the therapeutic treatment of an extensive skin lesion in a golden hamster (Mesocricetus auratus) using ozonized sunflower oil. The treatment, which lasted 23 days, allowed complete healing of the lesion.
DOI: 10.6084/m9.figshare.23290730
title: Use of ozonized sunflower oil in the treatment of skin injury in golden hamster (Mesocricetus auratus) - case report]

description: ABSTRACT Hamster breeding is becoming increasingly popular, mainly because of the simplicity of breeding, low cost, and characteristics of these animals: they are small, quiet, and do not require a large space. Because of this ease of keeping, some people choose to keep more than one animal of the same species in a single enclosure. In some cases, this sociability can lead to fights, because hamsters are extremely territorial animals, which can cause significant injuries. Knowledge of the most efficient methods for wound healing is essential in medicine for wild and exotic animals, as it allows faster clinical treatment and thus, stress reduction. The present case report refers to the therapeutic treatment of an extensive skin lesion in a golden hamster (Mesocricetus auratus) using ozonized sunflower oil. The treatment, which lasted 23 days, allowed complete healing of the lesion.