cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7420109
title: TOMOGRAPHIC STUDY OF THE S2-ALAR-ILIAC SCREW TECHNIQUE IN BRAZILIAN WOMEN

description: ABSTRACT Objective: Lumbosacral fixation presents problems in its arthrodesis, mainly due to pseudoarthrosis. Iliac screws minimize this problem, however, they show problems in the operative wound. The S2-Alar-iliac (S2AI) screw presents a lower rate of these complications. The anatomical differences between the populations and the sexes analyzed in the literature justify the study of the S2AI screw technique in Brazilian women. Methods: A total of 14 adult female CT scans were analyzed by 4 evaluators. Results: The mean bone length was 131.8 mm, the largest bone diameter was 22.6 mm, and the smallest bone diameter was 22.6 mm. Conclusions: The data presented are compatible with the literature and may assist spine surgeons in choosing the best implant and surgical technique. Level of Evidence I; Diagnostic Studies — Investigating a Diagnostic Test (anatomical investigation).
DOI: 10.6084/m9.figshare.7420112.v1
title: The addition of the thermophilic esterase EST2 influences the fatty acids and volatile compound profiles of semi hard cheeses

description: Abstract During cheese ripening the hydrolytic activities of proteases and lipases are essential to develop typical flavours; usually these activities come from lactic bacteria. A way to increase cheese flavour and/or to reduce the time of ripening is the addition of exogenous enzymes during cheese making. Actually some commercial lipases are used in cheese making, here we have evaluated the effect of the addition of the thermophilic esterase EST2, from Alyciclobacillus acidocaldarius, on the lipolysis and volatile compounds profiles of semi-hard cheeses. The addition of EST2 produced an increase of the degree of lipolysis up to 30% and the relative proportion of short- and medium- chain fatty acids, with respect to the control cheese. By SPME-GC-FID/MS were identified 27 and 31 volatile compounds in control and EST2-added cheeses, respectively; showing higher values than control for almost all compounds studied. EST2 addition during cheese making intensified the production of flavour compounds, suggesting a preferential release of short chain fatty acids. Considering that esterases have a different mechanism of action respect to lipases and EST2 is much more stable respect to all the commercial lipases, it could be an interesting technological tool to improve the sensory quality or to accelerate cheese ripening.
DOI: 10.6084/m9.figshare.7420103
title: Preference mapping to assess the effect of information on the acceptability of snack bars

description: Abstract Six Brazilian commercial brands of snack bars were chosen to evaluate the importance of packaging, highlighting the potential of health claims on the acceptability of them. One hundred and two consumers evaluated bars in three sessions of acceptance test, using a nine-point hedonic scale: the first with no information about the product, the second containing the packaging of the product and the last with information on health-related claims associated with the consumption of the bar. A Randomized Complete Block Design structured the experiment. The results were analyzed using frequency distribution, internal preference mapping, ANOVA and Tukey test (p ≤ 0.05). In the blind test, the lower mean acceptance of the seed and protein bars showed the need for sensorial improvement. In the packaging test, the difference between the means show that the packaging of the bars evaluated did not differ on acceptance, differing only from the protein bar. Test with the information showed that information of health claims, for the most part, can positively influence sensory acceptance, even if in some cases there is no sensory pleasure.
DOI: 10.6084/m9.figshare.7420106.v1
title: APOPTOSIS, NUTRITION, AND METABOLISM OF TRANSPLANTED INTERVERTEBRAL DISC CELLS

description: ABSTRACT Introduction: Apoptosis is a contributing factor to degenerating intervertebral disc (IVD). Disc regeneration has been attempted by transplanting cells into the disc, with some gains in disc height achieved in animal models. Here, we study whether the apoptotic microenvironment affects the transplanted disc cells. Methods: Human annulus fibrosus (AF) and nucleus pulposus (NP) cells were grown in media then starved for 5 days in vitro by not changing the media. Three aspects of apoptotic cell influence on the transplanted cells were tested in a total of 32 samples: 1) the effect of apoptotic cytokines in the media, 2) reduced glucose in the media, and 3) apoptotic cell bodies in the flask. The Trypan Blue, AlamarBlue®, and 1,9-Dimethyl-Methylene Blue assays for sulfated glycosaminoglycan (sGAG) content were performed (n=4). Results: There were significant decreases in cell viability between the control, 25% conditioned media (CM) and starved control group. There were no significant differences in cell number, metabolic activity or sGAG production in cells grown in different conditioned media compared to cells grown in complete media. The cells of the control decreased in viability and number over the 5 days without feeding, then improved dramatically when feeding was resumed. Flasks that received transplanted cells in addition to renewed feeding did not recover as much as the cells in the re-fed group. Conclusions: Cytokines from starved cells negatively impact on the viability of healthy cells. Starving cells that receive new sources of nutrition have even higher viability than transplanted cells. This indicates that altering and improving the nutrient supply problem in the IVD could be a valuable option. Level of Evidence III; Case control studyg.
DOI: 10.6084/m9.figshare.7420109.v1
title: TOMOGRAPHIC STUDY OF THE S2-ALAR-ILIAC SCREW TECHNIQUE IN BRAZILIAN WOMEN

description: ABSTRACT Objective: Lumbosacral fixation presents problems in its arthrodesis, mainly due to pseudoarthrosis. Iliac screws minimize this problem, however, they show problems in the operative wound. The S2-Alar-iliac (S2AI) screw presents a lower rate of these complications. The anatomical differences between the populations and the sexes analyzed in the literature justify the study of the S2AI screw technique in Brazilian women. Methods: A total of 14 adult female CT scans were analyzed by 4 evaluators. Results: The mean bone length was 131.8 mm, the largest bone diameter was 22.6 mm, and the smallest bone diameter was 22.6 mm. Conclusions: The data presented are compatible with the literature and may assist spine surgeons in choosing the best implant and surgical technique. Level of Evidence I; Diagnostic Studies — Investigating a Diagnostic Test (anatomical investigation).
DOI: 10.7284/116385
title: Meteorological Station data collected during research cruise NH1414 using a SIO MET-System instrument system onboard the platform RV New Horizon

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7420100
title: An analysis of the choice of higher education in Brazil

description: Abstract The aim of this paper is to evaluate the factors conditioning the choice of type of higher education course in Brazil. Based on data from the 2000 and 2010 Demographic Censuses and the Higher Education Synopsis from2000, we model the choice of course by the individual using the conditional logit model. The variables that affect this choice are: individual and family characteristics; candidate-vacancy relationship (competition) and course duration; income (mean and variability) and unemployment. This analysis is done for the total number of individuals with the age required for college entrance examination in the year 2000. The results indicated that expected yields, unemployment rate and the wage variability of careers only influence the individuals of the highest quartile. On the other hand, competition in the selective process has a greater impact on the choice of individuals in the lower distribution quartile.
DOI: 10.6084/m9.figshare.7420103.v1
title: Preference mapping to assess the effect of information on the acceptability of snack bars

description: Abstract Six Brazilian commercial brands of snack bars were chosen to evaluate the importance of packaging, highlighting the potential of health claims on the acceptability of them. One hundred and two consumers evaluated bars in three sessions of acceptance test, using a nine-point hedonic scale: the first with no information about the product, the second containing the packaging of the product and the last with information on health-related claims associated with the consumption of the bar. A Randomized Complete Block Design structured the experiment. The results were analyzed using frequency distribution, internal preference mapping, ANOVA and Tukey test (p ≤ 0.05). In the blind test, the lower mean acceptance of the seed and protein bars showed the need for sensorial improvement. In the packaging test, the difference between the means show that the packaging of the bars evaluated did not differ on acceptance, differing only from the protein bar. Test with the information showed that information of health claims, for the most part, can positively influence sensory acceptance, even if in some cases there is no sensory pleasure.
DOI: 10.6084/m9.figshare.7420094
title: Diet of Hemigrammus marginatus (Characiformes: Characidae) in the Upper Contas River, Diamantina Plateau (Bahia, Brazil)

description: ABSTRACT Studies on the composition of fish diet and on how species exploit food resources are especially relevant in tropical freshwater systems, where dietary plasticity is a commonly used strategy. In this study, we analysed the food spectrum and the environmental, seasonal and ontogenetic variations in the diet of a characid species [Hemigrammus marginatus Ellis, 1911 (Characidae)] in the region of the Upper Contas River, in the Diamantina Plateau, Brazil. We verified an omnivorous/invertivorous and opportunistic food habit, with predominance of insects and microcrustaceans, followed by filamentous algae. Seasonality did not alter the food resources used by the species. However, differences were detected in the dominant categories when comparing the two sampled rivers, as well as in the food consumption throughout the development of the species. These data increase the knowledge about the biology of H. marginatus and allow understanding the influence of the characteristics of the rivers and their surroundings in the trophic ecology of the species, as our findings have shown that, although insects have been expressive in both studied localities, microcrustaceans exhibit a greater relative importance in the more lentic environment, which is probably related to the variation in the availability of these resources in the environment.
DOI: 10.6084/m9.figshare.7420097
title: Influence of habitat connectivity and seasonality on the ichthyofauna structure of a riverine knickzone

description: ABSTRACT Knickzones are originated from basaltic outcroppings, present runs, riffles and pools and are highly influenced by flood pulses, which maintain their natural dynamic. However, the construction of hydroelectric power plants alters or eliminate the dynamism of this area and can affect the resident fauna that may be dependent on it. The aim of this study was to evaluate the organization of a knickzone’s ichthyofauna considering the influence of seasonality and connectivity of habitats. The study was performed in a knickzone located in the Sapucaí-Mirim River, Southeast Brazil. We sampled four rocky pools connected to the river and three isolated pools, during rainy and dry conditions. The analysis of the two factors (connectivity and seasonality) and of their interaction showed a significant influence only for seasonality on ichthyofauna structure, with higher values of abundance in the rainy season. The species that most contributed to the high dissimilarity between seasons were Knodus moenkhausii (50% of contribution) and Astyanax bockmanni (21%). The former is the most abundant species in the rainy season and the later in the dry season. The alteration between low and high water level occurs frequently in knickzones, as it is a rocky shallow platform in the middle of a river, with floods occurring seasonally or in stochastic short-term periods. This hydrological seasonal dynamic, high limnological variability and complex interactions of different habitats (pools, runs and rapids) explain the particular ichthyofauna structure in such small area. Our results also indicate the potential importance of basaltic knickzones for regional fish diversity conservation, especially due to the imminent threat by intensive hydropower reservoir construction.
DOI: 10.6084/m9.figshare.7420100.v1
title: An analysis of the choice of higher education in Brazil

description: Abstract The aim of this paper is to evaluate the factors conditioning the choice of type of higher education course in Brazil. Based on data from the 2000 and 2010 Demographic Censuses and the Higher Education Synopsis from2000, we model the choice of course by the individual using the conditional logit model. The variables that affect this choice are: individual and family characteristics; candidate-vacancy relationship (competition) and course duration; income (mean and variability) and unemployment. This analysis is done for the total number of individuals with the age required for college entrance examination in the year 2000. The results indicated that expected yields, unemployment rate and the wage variability of careers only influence the individuals of the highest quartile. On the other hand, competition in the selective process has a greater impact on the choice of individuals in the lower distribution quartile.
DOI: 10.7284/116376
title: Singlebeam Echosounder data collected during research cruise NH1414 using a Knudsen 320B/R instrument system onboard the platform RV New Horizon

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7420091
title: The importance of considering small-scale variability in macrobenthic distribution: spatial segregation between two fiddler crab species (genus Leptuca) (Decapoda, Ocypodidae)

description: ABSTRACT Defining the appropriate scale is important when trying to understand distribution patterns in community studies. Fiddler crabs are among the most common organisms inhabiting estuarine environments, and despite having a wide latitudinal distribution, are limited by shifts in temperature, current and wind pattern. Thus, many co-occur at a local scale, where their distribution is influenced by variables such as mean sediment grain diameter, salinity and tidal level. Our goal was to test intra and interspecific segregation in two similar and commonly co-occurring fiddler crabs species (Leptuca leptodactyla and Leptuca uruguayensis) at a small scale (10 m²). Interspecific segregation was observed, with L. leptodactyla occurring mainly at the upper level in relation to the water line and L. uruguayensis, at the lower. However, this pattern was irrespective of sex and developmental stage, as no intraspecific segregation was seen. Possible impacts of tidal level, soil silt/clay content and competition on interspecific segregation are discussed. Although L. leptodactyla and L. uruguayensis overlap in their occurrence when intertidal zonation is disregarded, they segregate when tidal levels are individually sampled as habitats. This highlights the importance of small-scale studies to identify patterns unobserved at regional scales, even when no environmental gradient is readily apparent.
DOI: 10.6084/m9.figshare.7420094.v1
title: Diet of Hemigrammus marginatus (Characiformes: Characidae) in the Upper Contas River, Diamantina Plateau (Bahia, Brazil)

description: ABSTRACT Studies on the composition of fish diet and on how species exploit food resources are especially relevant in tropical freshwater systems, where dietary plasticity is a commonly used strategy. In this study, we analysed the food spectrum and the environmental, seasonal and ontogenetic variations in the diet of a characid species [Hemigrammus marginatus Ellis, 1911 (Characidae)] in the region of the Upper Contas River, in the Diamantina Plateau, Brazil. We verified an omnivorous/invertivorous and opportunistic food habit, with predominance of insects and microcrustaceans, followed by filamentous algae. Seasonality did not alter the food resources used by the species. However, differences were detected in the dominant categories when comparing the two sampled rivers, as well as in the food consumption throughout the development of the species. These data increase the knowledge about the biology of H. marginatus and allow understanding the influence of the characteristics of the rivers and their surroundings in the trophic ecology of the species, as our findings have shown that, although insects have been expressive in both studied localities, microcrustaceans exhibit a greater relative importance in the more lentic environment, which is probably related to the variation in the availability of these resources in the environment.
DOI: 10.6084/m9.figshare.7420088
title: Susceptibility of targets to the vampire bat Desmodus rotundus are proportional to their abundance in Atlantic Forest fragments?

description: ABSTRACT Desmodus rotundus (É. Geoffroy, 1810) feeds preferably on mammal blood, including livestock animals, such as bovine cattle. In spite of using native preys in the wild, records of this feeding activity are scarce. In the present study, we investigated the foraging activity of D. rotundus based on video footage from camera traps in Atlantic Forest fragments in southern Goiás State, Brazil. Out of 23 mammal species recorded in the study area, four had interactions with Desmodus rotundus (Priodontes maximus, Tapirus terrestris, Mazama americana and Pecari tajacu). The records were obtained from early night to sunrise. There was a correlation between abundance of potential preys and the choice of the target by D. rotundus. Most of the bat-prey interaction occurred on the edge of fragments. The present study records for the first time the potential use of the collared peccary (P. tajacu) and the giant armadillo (P. maximus) in the diet of D. rotundus.
DOI: 10.6084/m9.figshare.7420091.v1
title: The importance of considering small-scale variability in macrobenthic distribution: spatial segregation between two fiddler crab species (genus Leptuca) (Decapoda, Ocypodidae)

description: ABSTRACT Defining the appropriate scale is important when trying to understand distribution patterns in community studies. Fiddler crabs are among the most common organisms inhabiting estuarine environments, and despite having a wide latitudinal distribution, are limited by shifts in temperature, current and wind pattern. Thus, many co-occur at a local scale, where their distribution is influenced by variables such as mean sediment grain diameter, salinity and tidal level. Our goal was to test intra and interspecific segregation in two similar and commonly co-occurring fiddler crabs species (Leptuca leptodactyla and Leptuca uruguayensis) at a small scale (10 m²). Interspecific segregation was observed, with L. leptodactyla occurring mainly at the upper level in relation to the water line and L. uruguayensis, at the lower. However, this pattern was irrespective of sex and developmental stage, as no intraspecific segregation was seen. Possible impacts of tidal level, soil silt/clay content and competition on interspecific segregation are discussed. Although L. leptodactyla and L. uruguayensis overlap in their occurrence when intertidal zonation is disregarded, they segregate when tidal levels are individually sampled as habitats. This highlights the importance of small-scale studies to identify patterns unobserved at regional scales, even when no environmental gradient is readily apparent.
DOI: 10.6084/m9.figshare.7420097.v1
title: Influence of habitat connectivity and seasonality on the ichthyofauna structure of a riverine knickzone

description: ABSTRACT Knickzones are originated from basaltic outcroppings, present runs, riffles and pools and are highly influenced by flood pulses, which maintain their natural dynamic. However, the construction of hydroelectric power plants alters or eliminate the dynamism of this area and can affect the resident fauna that may be dependent on it. The aim of this study was to evaluate the organization of a knickzone’s ichthyofauna considering the influence of seasonality and connectivity of habitats. The study was performed in a knickzone located in the Sapucaí-Mirim River, Southeast Brazil. We sampled four rocky pools connected to the river and three isolated pools, during rainy and dry conditions. The analysis of the two factors (connectivity and seasonality) and of their interaction showed a significant influence only for seasonality on ichthyofauna structure, with higher values of abundance in the rainy season. The species that most contributed to the high dissimilarity between seasons were Knodus moenkhausii (50% of contribution) and Astyanax bockmanni (21%). The former is the most abundant species in the rainy season and the later in the dry season. The alteration between low and high water level occurs frequently in knickzones, as it is a rocky shallow platform in the middle of a river, with floods occurring seasonally or in stochastic short-term periods. This hydrological seasonal dynamic, high limnological variability and complex interactions of different habitats (pools, runs and rapids) explain the particular ichthyofauna structure in such small area. Our results also indicate the potential importance of basaltic knickzones for regional fish diversity conservation, especially due to the imminent threat by intensive hydropower reservoir construction.
DOI: 10.7284/116379
title: Winch data collected during research cruise NH1414 using a Markey DUSH-5 instrument system onboard the platform RV New Horizon

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7420082
title: Reproductive stage, histology and seasonal morphometry of the testes of Dermanura cinerea (Chiroptera: Phyllostomidae) in Atlantic Forest fragment on the South Coast of Pernambuco, Brazil

description: ABSTRACT This study analyzed the reproductive stage, histology and morphometry of the testes of Dermanura cinerea (Gervais, 1856) in Atlantic Forest fragment on the South Coast of Pernambuco. Specimens were captured by mist net, and collections occurred monthly over two consecutive nights for 18 months. The meteorological data were grouped in rainy and dry months. Eighteen adult specimens were used, which were classified in males with descendant testes and with testes no descendant. For the histological analysis, the testes were collected, fixed and processed following the routine histological technique. The slides obtained were stained by Hematoxylin-Eosin. In the morphometric analysis the area of occupation of the tubular and intertubular compartment were measured, the number of Leydig, Sertoli, spermatocytes and elongated spermatids were quantified. The morphometric data were submitted to statistical analysis. Dermanura cinerea presented higher sperm production activity in dry months and higher hormone production in rainy months. This information is also related to the reproductive pattern of the females and to the increase in rainfall indexes, since it is a determinant factor in the mediation of the food availability of the frugivorous species, such as D. cinerea in the Atlantic Forest area of Pernambuco.