cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.6857072.v1
title: Isolation and genotyping of Clostridium perfringens from goats in Minas Gerais, Brazil

description: ABSTRACT: Despite the known importance of Clostridium perfringens as an enteropathogen in small ruminants, little is known about the role of its additional virulence factors or the frequency of the various C. perfringens genotypes in healthy goats; this complicates the laboratory diagnosis of the infections caused by this microorganism. In light of this, the aim of the present study was to isolate and genotype C. perfringens from stool samples from healthy goats in Brazil. Stool samples from 250 apparently healthy adult goats from 17 different herds in Minas Gerais, Brazil were collected, and isolation and genotyping of C. perfringens was performed. C. perfringens type A was isolated from 189 (75.6%) goats, whereas C. perfringens types C and D were each detected in one goat (0.4%). All isolates were negative for enterotoxin-, NetB-, NetE-, and NetF-encoding genes. These results confirmed C. perfringens type A as part of the microbiota in these animals, and they suggested that C. perfringens type C and D are rarely isolated from healthy goats.
DOI: 10.6084/m9.figshare.6857066
title: Generación de mesoporosidad en zeolitas ZSM-11, BETA e Y por tratamiento alcalino

description: ABSTRACT Zeolites, Y, ZSM-11 and BETA, widely used in refineries and petrochemical processes, fine chemistry and environmental processes were subjected to an alkaline treatment of desilication, in order to generate mesoporosity in the structure. The process used consisted of treating samples with an aqueous solution of NaOH at 65 ° C for 30 minutes. An exchange with NH4Cl, to recover the acidity, followed by desorption in a N2 stream and subsequent calcination at 500 ° C was then performed. The treated samples were evaluated by various techniques such as XRD, ICP, SEM, and surface area determination by BET method, specific external area, mesopore volume and distribution of pore size by the BJH method. This treatment resulted in a mesoporous zeolitic materials phase hexagonal arrangement and defined pore size, coexisting with the remaining crystalline phase. The generation of mesopores would cause a decrease in the Si / Al ratio, accompanied by an increase of the surface area with respect to the starting material. The Si species are selectively extracted, although Al species are also removed. An increase in pore diameter and mesopore volume was also observed, with the microporous structure of the starting matrices being preserved.
DOI: 10.6084/m9.figshare.6857066.v1
title: Generación de mesoporosidad en zeolitas ZSM-11, BETA e Y por tratamiento alcalino

description: ABSTRACT Zeolites, Y, ZSM-11 and BETA, widely used in refineries and petrochemical processes, fine chemistry and environmental processes were subjected to an alkaline treatment of desilication, in order to generate mesoporosity in the structure. The process used consisted of treating samples with an aqueous solution of NaOH at 65 ° C for 30 minutes. An exchange with NH4Cl, to recover the acidity, followed by desorption in a N2 stream and subsequent calcination at 500 ° C was then performed. The treated samples were evaluated by various techniques such as XRD, ICP, SEM, and surface area determination by BET method, specific external area, mesopore volume and distribution of pore size by the BJH method. This treatment resulted in a mesoporous zeolitic materials phase hexagonal arrangement and defined pore size, coexisting with the remaining crystalline phase. The generation of mesopores would cause a decrease in the Si / Al ratio, accompanied by an increase of the surface area with respect to the starting material. The Si species are selectively extracted, although Al species are also removed. An increase in pore diameter and mesopore volume was also observed, with the microporous structure of the starting matrices being preserved.
DOI: 10.6084/m9.figshare.6857063
title: Prediction and Modeling of Forest Fires in the Pantanal

description: Abstract Uncontrolled fire points and forest fires in the Pantanal cause great damage to local flora and fauna. The prediction of these events is of paramount importance as it may mitigate or even avoid disasters in the Pantanal ecosystem. Given that fire prevention should be constant, the identification of fire foci is essential for immediate intervention. The objective of this study was to evaluate the forest fires in the Pantanal of Mato Grosso do Sul associated with the meteorological variables and to perform a forecast modeling. The environmental variables involved in the process were provided by the database of the Center for Weather Forecasting and Climate Studies of the National Institute for Space Research (INPE) and from the meteorological database for teaching and research of the National Institute of Meteorology (INMET). A close relationship was observed between the meteorological variables temperature, relative humidity and solar radiation and the occurrence of foci and the resulting correlations were satisfactory for the application of forecasting models. The Multiple Linear Regression technique presented fit of 41% and the Integrated Self-Regressive Analysis of Moving Average technique, 66.5%, and a general performance of 68.4%, thus making the latter the most recommended methodology for forecasting.
DOI: 10.6084/m9.figshare.6857063.v1
title: Prediction and Modeling of Forest Fires in the Pantanal

description: Abstract Uncontrolled fire points and forest fires in the Pantanal cause great damage to local flora and fauna. The prediction of these events is of paramount importance as it may mitigate or even avoid disasters in the Pantanal ecosystem. Given that fire prevention should be constant, the identification of fire foci is essential for immediate intervention. The objective of this study was to evaluate the forest fires in the Pantanal of Mato Grosso do Sul associated with the meteorological variables and to perform a forecast modeling. The environmental variables involved in the process were provided by the database of the Center for Weather Forecasting and Climate Studies of the National Institute for Space Research (INPE) and from the meteorological database for teaching and research of the National Institute of Meteorology (INMET). A close relationship was observed between the meteorological variables temperature, relative humidity and solar radiation and the occurrence of foci and the resulting correlations were satisfactory for the application of forecasting models. The Multiple Linear Regression technique presented fit of 41% and the Integrated Self-Regressive Analysis of Moving Average technique, 66.5%, and a general performance of 68.4%, thus making the latter the most recommended methodology for forecasting.
DOI: 10.6084/m9.figshare.6857057
title: Floods areas in the paulista region of river basin Paraiba do Sul and headwaters of Rural Environmental Register

description: Abstract The knowledge of urban flood risk areas associated with the rural environmental register database allows to identify where small rivers begins. This article combines and assesses the risk prone areas with headwaters and proposes actions. The goal of this work was to evaluate the relationships between flood risk and the environmental conditions of headwaters (both in preserved, consolidated areas and to be reforested) of 10 municipalities in the Paraiba Valley, previously mapped by the Institute of Technological Research (IPT). The results showed that, for the municipalities evaluated, 10,324 headwaters were registered and, for all municipalities the quantity of preserved areas is higher in comparison with the consolidated areas. Furthermore, there is a lack of vegetation restoration project in rivers that causes flooding in the studied municipalities, even after changes in the Brazilian Forest Code. These results provide valuable information to the local institutions that conduct actions for the restoration of deforested areas and several other initiatives that aim to mitigate flood risk in the areas assessed in this study.
DOI: 10.6084/m9.figshare.6857054
title: Corticolous lichen community in an urbanization gradient in the Rio dos Sinos Hydrographic Basin, southern Brazil

description: Abstract Lichens are known worldwide as indicators of environmental quality because they are sensitive to environmental changes, specially the ones with anthropogenic origin. In this study, we analyzed species composition, richness and coverage of corticolous lichen communities in nine municipalities with diferente urbanization levels, and evaluated their similarities considering lichen species composition. The studied sites were distributed in rural, rural/urban and urban/industrial matrices. Ten phorophytes were sampled in each area using the rubber band method. A total of 215 lichen species were identified, of which nine species are new records: four are being cited for Brazil for the first time, and five for Rio Grande do Sul. As urbanization increased, a simplification of the lichen community structure was observed, as well as a decrease in species richness and changes on species composition. Besides, in the urban/industrial matrix, few species had high coverage percentage and together added great importance to the community. We found higher homogeneity on species composition in closer areas and in the ones that were inserted in the urban/industrial matrix. This study showed that urban tree vegetation is an important factor for lichen species establishment along an urbanization gradient.
DOI: 10.6084/m9.figshare.6857057.v1
title: Floods areas in the paulista region of river basin Paraiba do Sul and headwaters of Rural Environmental Register

description: Abstract The knowledge of urban flood risk areas associated with the rural environmental register database allows to identify where small rivers begins. This article combines and assesses the risk prone areas with headwaters and proposes actions. The goal of this work was to evaluate the relationships between flood risk and the environmental conditions of headwaters (both in preserved, consolidated areas and to be reforested) of 10 municipalities in the Paraiba Valley, previously mapped by the Institute of Technological Research (IPT). The results showed that, for the municipalities evaluated, 10,324 headwaters were registered and, for all municipalities the quantity of preserved areas is higher in comparison with the consolidated areas. Furthermore, there is a lack of vegetation restoration project in rivers that causes flooding in the studied municipalities, even after changes in the Brazilian Forest Code. These results provide valuable information to the local institutions that conduct actions for the restoration of deforested areas and several other initiatives that aim to mitigate flood risk in the areas assessed in this study.
DOI: 10.6084/m9.figshare.6857051
title: Distribution and rarity of Mezilaurus (Lauraceae) species in Brazil

description: Abstract This study aimed to present a review on known distribution of Mezilaurus species from Brazil and investigate whether the potential distribution and the conservation status of the species can be studied based on herbarium data. The potential distribution of Mezilaurus species was modeled using the Brazilian Floral and Fungal Biogeography system. A total of 804 records of 16 Brazilian species of Mezilaurus was found. The percentage of total loss of records was very high (58.3%), especially due to lack of georeferencing and the sampling determiner (56.4%). Analysis of the known distribution revealed new information for M. lindaviana, M. navalium, M. sprucei, M. subcordata, M. synandra and M. vanderwerffii. The potential distribution models showed good results for M. itauba, M. crassiramea and M. synandra; however, were strongly influenced by the number of records. The analysis of rarity showed that fifty percent of the species presented a high degree of rarity because they occur in restricted areas and habitat and scanty populations. The situation of conservation based on the classification of rarity using herbarium records showed some failures regarding the classification of the population size; however, they showed good results on the geographic range and habitat of the species.
DOI: 10.6084/m9.figshare.6857048
title: Protective Effects of Accumulated Aerobic Exercise in Infarcted Old Rats

description: Abstract Background: Aerobic exercise exerts cardioprotective effects on myocardial infarction. However, there is lack of information about the possible protective effects of continuous or accumulated aerobic exercise performed prior to myocardial infarction in aging. Objective: To evaluate the preventive effects of continuous or accumulated aerobic exercise on physical capacity, pulmonary congestion and ventricular weight in rats submitted to myocardial infarction. Methods: Old male Wistar rats were divided into four groups: sham control, sedentary infarcted, continuous aerobic exercise submitted to myocardial infarction, and accumulated aerobic exercise submitted to myocardial infarction. Body weight and maximum speed were evaluated at the beginning and at the end of the protocol. Trained groups performed continuous (1 h a day) or accumulated (30 minutes in the morning and 30 minutes in the afternoon) exercise. All groups, except the sham control, were submitted to myocardial infarction surgery at the end of the protocol. Heart, skeletal muscles, as well as wet and dry lung were weighed. The significance level in statistical analysis was established at p &lt; 0.05. Results: Both continuous and accumulated exercise caused an increase in physical capacity in rats, as well as prevented its further impairment after myocardial infarction, and in the accumulated exercise group this prevention was greater. The continuous exercise group demonstrated an increase in lung water content, while the accumulated exercise group presented a reduction in body weight and an increase in left ventricle relative weight. Conclusion: In conclusion, the data of the present study indicate that accumulated aerobic exercise present a better protective effect than continuous aerobic training in the context of myocardial infarction and aging.
DOI: 10.6084/m9.figshare.6857051.v1
title: Distribution and rarity of Mezilaurus (Lauraceae) species in Brazil

description: Abstract This study aimed to present a review on known distribution of Mezilaurus species from Brazil and investigate whether the potential distribution and the conservation status of the species can be studied based on herbarium data. The potential distribution of Mezilaurus species was modeled using the Brazilian Floral and Fungal Biogeography system. A total of 804 records of 16 Brazilian species of Mezilaurus was found. The percentage of total loss of records was very high (58.3%), especially due to lack of georeferencing and the sampling determiner (56.4%). Analysis of the known distribution revealed new information for M. lindaviana, M. navalium, M. sprucei, M. subcordata, M. synandra and M. vanderwerffii. The potential distribution models showed good results for M. itauba, M. crassiramea and M. synandra; however, were strongly influenced by the number of records. The analysis of rarity showed that fifty percent of the species presented a high degree of rarity because they occur in restricted areas and habitat and scanty populations. The situation of conservation based on the classification of rarity using herbarium records showed some failures regarding the classification of the population size; however, they showed good results on the geographic range and habitat of the species.
DOI: 10.6084/m9.figshare.6857045
title: SAMe-TT2R2 Score: A Useful Tool in Oral Anticoagulation Decision-Making for Venous Thromboembolism Patients?

description: Abstract Background: The SAMe-TT2R2 score was introduced to identify atrial fibrillation patients with a high risk of not achieving a good time in therapeutic range (TTR) during vitamin K antagonists (VKA) therapy. Objective: The aim of this study was to evaluate this score in venous thromboembolism (VTE) patients. Patients and methods: A retrospective cohort study of patients receiving care at the outpatient anticoagulation clinic of a tertiary care teaching hospital. Patients were classified as having low (score 0-1) or high risk (score ≥ 2) of not achieving a good TTR. The area under the ROC curve was calculated to assess the ability of the score to predict a TTR ≥ 65%. Adverse event-free survival curves according to the SAMe-TT2R2 score were calculated by the Kaplan-Meier method and compared by the log-rank test. A p-value &lt; 0.05 was considered statistically significant. Results: We investigated 111 patients during a median follow-up of 2.3 (0.7-6.4) years. Mean age was 54.1 ± 15.7 years and 71 (64.0%) were women. Low- and high-risk groups had similar mean TTR (51.9 vs. 49.6%; p = 0.593). The two groups did not differ significantly in the percentage of patients achieving a TTR ≥ 65% (35.6 vs. 25.8%; p = 0.370). The c-statistic was 0.595 (p = 0.113) for TTR ≥ 65%. Adverse event-free survival during anticoagulation was also similar in both groups (p = 0.136). Conclusions: The SAMe-TT2R2 score does not seem to be a useful tool in oral anticoagulation decision-making for patients with VTE and should not be used in this setting.
DOI: 10.6084/m9.figshare.6857048.v1
title: Protective Effects of Accumulated Aerobic Exercise in Infarcted Old Rats

description: Abstract Background: Aerobic exercise exerts cardioprotective effects on myocardial infarction. However, there is lack of information about the possible protective effects of continuous or accumulated aerobic exercise performed prior to myocardial infarction in aging. Objective: To evaluate the preventive effects of continuous or accumulated aerobic exercise on physical capacity, pulmonary congestion and ventricular weight in rats submitted to myocardial infarction. Methods: Old male Wistar rats were divided into four groups: sham control, sedentary infarcted, continuous aerobic exercise submitted to myocardial infarction, and accumulated aerobic exercise submitted to myocardial infarction. Body weight and maximum speed were evaluated at the beginning and at the end of the protocol. Trained groups performed continuous (1 h a day) or accumulated (30 minutes in the morning and 30 minutes in the afternoon) exercise. All groups, except the sham control, were submitted to myocardial infarction surgery at the end of the protocol. Heart, skeletal muscles, as well as wet and dry lung were weighed. The significance level in statistical analysis was established at p &lt; 0.05. Results: Both continuous and accumulated exercise caused an increase in physical capacity in rats, as well as prevented its further impairment after myocardial infarction, and in the accumulated exercise group this prevention was greater. The continuous exercise group demonstrated an increase in lung water content, while the accumulated exercise group presented a reduction in body weight and an increase in left ventricle relative weight. Conclusion: In conclusion, the data of the present study indicate that accumulated aerobic exercise present a better protective effect than continuous aerobic training in the context of myocardial infarction and aging.
DOI: 10.6084/m9.figshare.6857039
title: Phenotype mapping of heart failure with preserved ejection fraction

description: Abstract Heart failure with preserved ejection fraction (HFPEF) has become the main phenotypic model of heart failure (HF) in community and referral patients in Brazil and in the world. Despite advances in the development of new drugs for HF treatment, there has been no significant improvement in mortality of this condition. According to many studies, this can be explained by the heterogeneous nature of HF physiopathology, whose basic mechanisms may result in different clinical presentations, culminating in the emerging of different phenogroups in this syndrome. In this context, phenotype mapping of HFPEF has emerged as a possible solution, since it enables the development of clinical trials that establish specific therapeutic strategies for each phenotypic profile. New technologies in the field of artificial intelligence have enabled the assessment of a large volume of data and infer intrinsic patterns and different outcomes. Thereby, it is possible to obtain mutually exclusive categories of HFPEF, with a phenotype mapping of the syndrome and grouping of patients according to their phenotypic features. Besides, other diseases can have the same clinical phenotype but different pathophysiological basis, the so called “phenocopies”. These tools enable the analysis and categorization of the wide spectrum of heart failure, contributing to solve the dilemmas of the treatment of this syndrome.
DOI: 10.6084/m9.figshare.6857042
title: From Echocardiographic Evaluation to Biomarkers Measurement: The Role of Myocardial Dysfunction in Mortality Associated with Sepsis

description: Abstract Sepsis remains the leading cause of mortality and critical illness worldwide. Myocardial dysfunction is one of the most clinically relevant manifestations of sepsis and results from a complex interaction among genetic, molecular, metabolic, and structural changes. Despite the prominence given to the occurrence of systolic dysfunction during sepsis, the association between diastolic dysfunction and mortality is controversial, while diastolic dysfunction and right ventricular dysfunction are identified as independent predictors of mortality in the most recent studies. Elevation of biomarkers during sepsis may result from several mechanisms, and although the role of the B-type natriuretic peptide (BNP) and the N-terminal portion of its prohormone (NT-proBNP) as independent predictors of mortality is well defined, the same cannot be said about cardiac troponins due to conflicting results among currently available studies. The objective of the present review is to discuss the pathophysiological mechanisms of myocardial dysfunction induced by sepsis in adults and the role of echocardiography and cardiac biomarkers as tools for prognostic evaluation in this clinical setting.
DOI: 10.6084/m9.figshare.6857045.v1
title: SAMe-TT2R2 Score: A Useful Tool in Oral Anticoagulation Decision-Making for Venous Thromboembolism Patients?

description: Abstract Background: The SAMe-TT2R2 score was introduced to identify atrial fibrillation patients with a high risk of not achieving a good time in therapeutic range (TTR) during vitamin K antagonists (VKA) therapy. Objective: The aim of this study was to evaluate this score in venous thromboembolism (VTE) patients. Patients and methods: A retrospective cohort study of patients receiving care at the outpatient anticoagulation clinic of a tertiary care teaching hospital. Patients were classified as having low (score 0-1) or high risk (score ≥ 2) of not achieving a good TTR. The area under the ROC curve was calculated to assess the ability of the score to predict a TTR ≥ 65%. Adverse event-free survival curves according to the SAMe-TT2R2 score were calculated by the Kaplan-Meier method and compared by the log-rank test. A p-value &lt; 0.05 was considered statistically significant. Results: We investigated 111 patients during a median follow-up of 2.3 (0.7-6.4) years. Mean age was 54.1 ± 15.7 years and 71 (64.0%) were women. Low- and high-risk groups had similar mean TTR (51.9 vs. 49.6%; p = 0.593). The two groups did not differ significantly in the percentage of patients achieving a TTR ≥ 65% (35.6 vs. 25.8%; p = 0.370). The c-statistic was 0.595 (p = 0.113) for TTR ≥ 65%. Adverse event-free survival during anticoagulation was also similar in both groups (p = 0.136). Conclusions: The SAMe-TT2R2 score does not seem to be a useful tool in oral anticoagulation decision-making for patients with VTE and should not be used in this setting.