cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7518074
title: Effect of Mild Aerobic Exercise in Atrial Granules of Mice with Chronic Chagas Disease

description: Abstract Background: Chagas disease presents in different clinical forms, ranging from asymptomatic to acute, with destruction of heart cells and a possibility of death. In the chronic phase, the parasites can cause serious injuries to different tissues. Objectives: Our objective was to study the effects of physical exercise (swimming) in atrial granules and components of cardiomyocytes in mice with chronic Chagas disease. Methods: In total, 20 male mice were divided into four different groups: untrained control (UC), trained control (TC), untrained infected (UI), and trained infected (TI). In the UI and TI groups, 1,000 forms of Trypanosoma cruzi (Y strain) were inoculated intraperitoneally. After 40 days of infection and proof of chronic phase, the exercise protocol began. The UC and UI groups performed exercise for 10 min/day, and the TC and TI groups followed a training protocol five times a week for 30 minutes during 8 weeks. Ultrathin sections were subjected to morphometric and stereological analyses using electron photomicrographs (x15000) obtained by transmission electron microscopy. Results: The TI group showed the lowest percentage of small granules (58%), while the UI group presented 80% of these granules. The volume density of the Golgi complex and myofibrils in the TI group were reduced compared with those in the UI group, while the parameters of atrial granules and mitochondria increased. Conclusion: Our results suggest that mild physical exercise changes the morphological and morphometric parameters of granules and organelles in the cardiac atrium of mice infected with T. cruzi, and produces moderate beneficial effects on the cardiovascular system.
DOI: 10.6084/m9.figshare.7507844.v1
title: Stable (C, O, S) isotopes and whole-rock geochemistry of carbonatites from Alto Paranaíba Igneous Province, SE Brazil

description: ABSTRACT: The present work investigates the relationship between whole-rock geochemistry and stable isotope composition from carbonatites belonging to the Tapira, Araxá, Salitre, Serra Negra, Catalão I, and Catalão II alkaline-carbonatite complexes of the Alto Paranaiba Igneous Province (APIP), central Brazil and from the Jacupiranga Complex, of the Ponta Grossa Province, southeast Brazil. The APIP complexes are ultrapotassic, comprising bebedourites, phoscorites, nelsonites, and carbonatites, whereas Jacupiranga is a sodic complex composed of ijolite-series rocks, syenites, carbonatites, and alkaline gabbros. The geochemistry data allied to mineralogical constraints allowed us to classify the carbonatites into five groups, and to devise a chemical index (BaO/(BaO+SrO)) to gauge the magmatic evolution of the studied carbonatites.The APIP carbonatites evolve from apatite-rich calciocarbonatites toward Ba-, Sr-, and rare earth element (REE)-rich magnesiocarbonatites. This evolution is mostly driven by apatite, phlogopite, dolomite, and calcite fractionation and consequent enrichment in monazite, norsethite, and strontianite. Stable isotope data show a wide diversity of petrogenetic processes in play at the APIP, relatively to the Jacupiranga Complex, which is interpreted as a result of the shallower intrusion levels of the APIP complexes. Such shallower emplacement, at low lithostatic pressure, allowed for a complex interplay of fractional crystallization, liquid immiscibility, degassing, and interaction with hydrothermal and carbohydrothermal systems.
DOI: 10.6084/m9.figshare.7514756
title: Application of Artificial Neural Networks for Fog Forecast

description: ABSTRACT: This study examines the development of a system that assists in planning flight activities of the Academia da Força Aérea (AFA) so that meteorological data can be used to predict the occurrence of fog. This system was developed in MATLAB 8.0 by applying multilayer perceptron-type artificial neural networks and using an error correction algorithm called backpropagation. The methodology used to implement the network comprises eight input variables, five neurons in the intermediary layer, and one neuron in the output layer, which corresponds to the presence or absence of fog. The fog phenomenon is very important for the study and definition of flight strategic planning. Data taken from 1989 to 2008 and related to the input variables were used for the training and validation of the proposed network. Consequently, the multilayer perceptron network has a 95% reliability compared with the data collected. This high level of reliability is an exceptional result for the management, planning, and decision making team of the AFA strategic group. Thus, it can be concluded that the proposed system is efficient and will subsidize, with good safety margin, AFA's flight activity planning and could also be applied to other air activities in Brazil.
DOI: 10.6084/m9.figshare.7514756.v1
title: Application of Artificial Neural Networks for Fog Forecast

description: ABSTRACT: This study examines the development of a system that assists in planning flight activities of the Academia da Força Aérea (AFA) so that meteorological data can be used to predict the occurrence of fog. This system was developed in MATLAB 8.0 by applying multilayer perceptron-type artificial neural networks and using an error correction algorithm called backpropagation. The methodology used to implement the network comprises eight input variables, five neurons in the intermediary layer, and one neuron in the output layer, which corresponds to the presence or absence of fog. The fog phenomenon is very important for the study and definition of flight strategic planning. Data taken from 1989 to 2008 and related to the input variables were used for the training and validation of the proposed network. Consequently, the multilayer perceptron network has a 95% reliability compared with the data collected. This high level of reliability is an exceptional result for the management, planning, and decision making team of the AFA strategic group. Thus, it can be concluded that the proposed system is efficient and will subsidize, with good safety margin, AFA's flight activity planning and could also be applied to other air activities in Brazil.
DOI: 10.6084/m9.figshare.7515779
title: Power amplifier circuits for functional electrical stimulation systems

description: Abstract Introduction: Functional electrical stimulation (FES) is a technique that has been successfully employed in rehabilitation treatment to mitigate problems after spinal cord injury (SCI). One of the most relevant modules in a typical FES system is the power or output amplifier stage, which is responsible for the application of voltage or current pulses of proper intensity to the biological tissue, applied noninvasively via electrodes, placed on the skin surface or inside the muscular tissue, closer to the nervous fibers. The goals of this paper are to describe and discuss about the main power output designs usually employed in transcutaneous functional electrical stimulators as well as safety precautions taken to protect patients. Methods A systematic review investigated the circuits of papers published in IEEE Xplore and ScienceDirect databases from 2000 to 2016. The query terms were “((FES or Functional electric stimulator) and (circuit or design))” with 274 papers retrieved from IEEE Xplore and 29 from ScienceDirect. After the application of exclusion criteria the amount of papers decreased to 9 and 2 from IEEE Xplore and ScienceDirect, respectively. One paper was inserted in the results as a technological contribution to the field. Therefore, 12 papers presented power stage circuits suitable to stimulate great muscles. Discussion The retrieved results presented relevant circuits with different electronic strategies and circuit components. Some of them considered patient safety strategies or aimed to preserve muscle homeostasis such as biphasic current application, which prevents charge accumulation in stimulated tissues as well as circuits that dealt with electrical impedance variation to keep the electrode-tissue interface within an electrochemical safe regime. The investigation revealed a predominance of design strategies using operational amplifiers in power circuits, current outputs, and safety methods to reduce risks of electrical hazards and discomfort to the individual submitted to FES application.
DOI: 10.6084/m9.figshare.7515779.v1
title: Power amplifier circuits for functional electrical stimulation systems

description: Abstract Introduction: Functional electrical stimulation (FES) is a technique that has been successfully employed in rehabilitation treatment to mitigate problems after spinal cord injury (SCI). One of the most relevant modules in a typical FES system is the power or output amplifier stage, which is responsible for the application of voltage or current pulses of proper intensity to the biological tissue, applied noninvasively via electrodes, placed on the skin surface or inside the muscular tissue, closer to the nervous fibers. The goals of this paper are to describe and discuss about the main power output designs usually employed in transcutaneous functional electrical stimulators as well as safety precautions taken to protect patients. Methods A systematic review investigated the circuits of papers published in IEEE Xplore and ScienceDirect databases from 2000 to 2016. The query terms were “((FES or Functional electric stimulator) and (circuit or design))” with 274 papers retrieved from IEEE Xplore and 29 from ScienceDirect. After the application of exclusion criteria the amount of papers decreased to 9 and 2 from IEEE Xplore and ScienceDirect, respectively. One paper was inserted in the results as a technological contribution to the field. Therefore, 12 papers presented power stage circuits suitable to stimulate great muscles. Discussion The retrieved results presented relevant circuits with different electronic strategies and circuit components. Some of them considered patient safety strategies or aimed to preserve muscle homeostasis such as biphasic current application, which prevents charge accumulation in stimulated tissues as well as circuits that dealt with electrical impedance variation to keep the electrode-tissue interface within an electrochemical safe regime. The investigation revealed a predominance of design strategies using operational amplifiers in power circuits, current outputs, and safety methods to reduce risks of electrical hazards and discomfort to the individual submitted to FES application.
DOI: 10.6084/m9.figshare.7514747
title: The Sensitivity of Wind Forecasts with a Mesoscale Meteorological Model at the Centro de Lançamento de Alcântara

description: ABSTRACT: The sensitivity of the planetary boundary layer (PBL) parameterizations is investigated using the hybrid Fifth Generation Penn State University/National Center for Atmospheric Research (NCAR) Mesoscale Model (MM5) and its results were compared with observations from two field campaigns held during the dry and wet seasons at the Centro de Lançamento de Alcântara (CLA). The comparisons were made using the integrated zonal and meridional components of observed and forecasted winds. Initially, three boundary layer parameterizations, in addition to the current parameterization, were selected for evaluation: Blackadar (BLK), Medium Range Forecast (MRF), Janjic (ETA) and Burk-Thompson (BT). The MRF and BLK schemes produced better results than the ETA and BT schemes. Nevertheless, MRF and BLK underestimate the zonal and meridional wind components by around 16% in the rainy season and overestimate them by on average 18% in the dry season.
DOI: 10.6084/m9.figshare.7514747.v1
title: The Sensitivity of Wind Forecasts with a Mesoscale Meteorological Model at the Centro de Lançamento de Alcântara

description: ABSTRACT: The sensitivity of the planetary boundary layer (PBL) parameterizations is investigated using the hybrid Fifth Generation Penn State University/National Center for Atmospheric Research (NCAR) Mesoscale Model (MM5) and its results were compared with observations from two field campaigns held during the dry and wet seasons at the Centro de Lançamento de Alcântara (CLA). The comparisons were made using the integrated zonal and meridional components of observed and forecasted winds. Initially, three boundary layer parameterizations, in addition to the current parameterization, were selected for evaluation: Blackadar (BLK), Medium Range Forecast (MRF), Janjic (ETA) and Burk-Thompson (BT). The MRF and BLK schemes produced better results than the ETA and BT schemes. Nevertheless, MRF and BLK underestimate the zonal and meridional wind components by around 16% in the rainy season and overestimate them by on average 18% in the dry season.
DOI: 10.6084/m9.figshare.7518365
title: High-Altitude Platforms — Present Situation and Technology Trends

description: ABSTRACT High-altitude platforms (HAPs) are aircraft, usually unmanned airships or airplanes positioned above 20 km, in the stratosphere, in order to compose a telecommunications network or perform remote sensing. In the 1990 and 2000 decades, several projects were launched, but very few had continued. In 2014, 2 major Internet companies (Google and Facebook) announced investments in new HAP projects to provide Internet access in regions without communication infrastructure (terrestrial or satellite), bringing back attention to the development of HAP. This article aims to survey the history of HAPs, the current state-of-the-art (April 2016), technology trends and challenges. The main focus of this review will be on technologies directly related to the aerial platform, inserted in the aeronautical engineering field of knowledge, not detailing aspects of the telecommunications area.
DOI: 10.6084/m9.figshare.7518365.v1
title: High-Altitude Platforms — Present Situation and Technology Trends

description: ABSTRACT High-altitude platforms (HAPs) are aircraft, usually unmanned airships or airplanes positioned above 20 km, in the stratosphere, in order to compose a telecommunications network or perform remote sensing. In the 1990 and 2000 decades, several projects were launched, but very few had continued. In 2014, 2 major Internet companies (Google and Facebook) announced investments in new HAP projects to provide Internet access in regions without communication infrastructure (terrestrial or satellite), bringing back attention to the development of HAP. This article aims to survey the history of HAPs, the current state-of-the-art (April 2016), technology trends and challenges. The main focus of this review will be on technologies directly related to the aerial platform, inserted in the aeronautical engineering field of knowledge, not detailing aspects of the telecommunications area.
DOI: 10.6084/m9.figshare.11390934
title: MICROBIOLOGICAL EVALUATION OF THIGH AND DRUMSTICK CHICKEN SOLD IN BULK IN SINOP-MT

description: Abstract The chicken meat consumption has increased in recent years favored by different factors. However, when this food is manipulated without hygienic care, can be a source of etiological agents that cause diseases. The objective of this study was to evaluate the microbiological quality of 60 samples of fresh chilled chicken meat cooled in nature, collected from 20 commercial establishments in the municipalyti of Sinop – Mato Grosso. The microbiological assessments were composed of: enumeration of total and thermotolerant coliforms, Escherichia coli research and identification of Salmonella spp. In 100% of the samples total coliforms were found. Six samples presented thermotolerant coliform values &gt;3 NMP / g, but did not extrapolate the standard 104NMP / g required by brazilian legislation. Of the 60 samples evaluated, 8.3% presented contamination by E. coli and 8.3% were contaminated by Salmonella spp.. In 30% of markets were obtained contaminated samples by E. coli (10%) and Salmonella spp. (20%), being considered unsuitable for consumption.Theserovars of Salmonella spp. found were: Hadar, Minnesota, Heidelberg and Kentucky.In this way, there is a need for good manufacturing practices applied, hygiene and food handling in establishments in order to reduce contamination by microorganisms in the final product and the risks to collective health.
DOI: 10.6084/m9.figshare.11390934.v1
title: MICROBIOLOGICAL EVALUATION OF THIGH AND DRUMSTICK CHICKEN SOLD IN BULK IN SINOP-MT

description: Abstract The chicken meat consumption has increased in recent years favored by different factors. However, when this food is manipulated without hygienic care, can be a source of etiological agents that cause diseases. The objective of this study was to evaluate the microbiological quality of 60 samples of fresh chilled chicken meat cooled in nature, collected from 20 commercial establishments in the municipalyti of Sinop – Mato Grosso. The microbiological assessments were composed of: enumeration of total and thermotolerant coliforms, Escherichia coli research and identification of Salmonella spp. In 100% of the samples total coliforms were found. Six samples presented thermotolerant coliform values &gt;3 NMP / g, but did not extrapolate the standard 104NMP / g required by brazilian legislation. Of the 60 samples evaluated, 8.3% presented contamination by E. coli and 8.3% were contaminated by Salmonella spp.. In 30% of markets were obtained contaminated samples by E. coli (10%) and Salmonella spp. (20%), being considered unsuitable for consumption.Theserovars of Salmonella spp. found were: Hadar, Minnesota, Heidelberg and Kentucky.In this way, there is a need for good manufacturing practices applied, hygiene and food handling in establishments in order to reduce contamination by microorganisms in the final product and the risks to collective health.
DOI: 10.6084/m9.figshare.14270156.v1
title: Stress and quality of life of the family caregivers of elderly with Alzheimer's disease

description: ABSTRACT This study aimed to analyze the relationship between stress and quality of life of family caregivers of elderly with Alzheimer's disease. It is a quantitative study of descriptive type, conducted with 43 family caregivers of elderly with Alzheimer's. These were submitted to a semi-structured interview, the Brazilian Version of the Questionnaire Short-Form Health Survey of Quality of Life and the Inventory of Symptoms of Stress to Lipp Adults. It was verified that family caregivers of elderly present deeply affected health conditions, providing a stress frame which is related to their quality of life, especially in the physical, social and emotional domains.
DOI: 10.6084/m9.figshare.8031455
title: ECONOMY AND FISHING ACTIVITY IN THE ATLANTIC SOUTH: THE CASE OF MOÇÂMEDES IN THE 19TH CENTURY

description: Abstract This work analyzes Moçâmedes during the 19th century and its importance for the development of southern Angola and for trade with other ports in Africa and Portugal. It is observed that the main export goods were those derived from fishing in the cold waters of its coast and not those derived from agriculture, as it seemed to be the first intention of the settlers who arrived there and of the Portuguese state, which promoted colonization. The food trade, including fish, cattle and various garden species, was essential to the development of Moçâmedes, also to economic changes with different places and peoples, both African and foreign, and to the process of occupation that Portugal implemented in Angola.
DOI: 10.6084/m9.figshare.8031455.v1
title: ECONOMY AND FISHING ACTIVITY IN THE ATLANTIC SOUTH: THE CASE OF MOÇÂMEDES IN THE 19TH CENTURY

description: Abstract This work analyzes Moçâmedes during the 19th century and its importance for the development of southern Angola and for trade with other ports in Africa and Portugal. It is observed that the main export goods were those derived from fishing in the cold waters of its coast and not those derived from agriculture, as it seemed to be the first intention of the settlers who arrived there and of the Portuguese state, which promoted colonization. The food trade, including fish, cattle and various garden species, was essential to the development of Moçâmedes, also to economic changes with different places and peoples, both African and foreign, and to the process of occupation that Portugal implemented in Angola.
DOI: 10.6084/m9.figshare.14270156
title: Stress and quality of life of the family caregivers of elderly with Alzheimer's disease

description: ABSTRACT This study aimed to analyze the relationship between stress and quality of life of family caregivers of elderly with Alzheimer's disease. It is a quantitative study of descriptive type, conducted with 43 family caregivers of elderly with Alzheimer's. These were submitted to a semi-structured interview, the Brazilian Version of the Questionnaire Short-Form Health Survey of Quality of Life and the Inventory of Symptoms of Stress to Lipp Adults. It was verified that family caregivers of elderly present deeply affected health conditions, providing a stress frame which is related to their quality of life, especially in the physical, social and emotional domains.
DOI: 10.6084/m9.figshare.7506284.v1
title: Control measures for circulation of the textbook for teaching reading and writing in São Paulo: the role of the 1918 reviewing committee

description: In order to contribute to the understanding of the history of the teaching of reading and writing and the history of political movement of textbooks in Sao Paulo, Brazil, we present the results of the analysis of the documents produced by the Review Commission Textbook, established in 1918 by the General Board of Education of São Paulo State. This commission aimed to review which books among the already approved by previous committees, should continue as recommended for use in elementary schools in São Paulo. For this, the commission has prepared various reports, which are representative of the actions of the state government to control the circulation and use of textbooks in elementary schools in the early twentieth century.
DOI: 10.6084/m9.figshare.7506284
title: Control measures for circulation of the textbook for teaching reading and writing in São Paulo: the role of the 1918 reviewing committee

description: In order to contribute to the understanding of the history of the teaching of reading and writing and the history of political movement of textbooks in Sao Paulo, Brazil, we present the results of the analysis of the documents produced by the Review Commission Textbook, established in 1918 by the General Board of Education of São Paulo State. This commission aimed to review which books among the already approved by previous committees, should continue as recommended for use in elementary schools in São Paulo. For this, the commission has prepared various reports, which are representative of the actions of the state government to control the circulation and use of textbooks in elementary schools in the early twentieth century.