Statistic Analysis
Mostrando 13-24 de 400 artigos, teses e dissertações.
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13. The CHA2DS2-VASc score for predicting atrial fibrillation in patients presenting with ST elevation myocardial infarction: prospective observational study
ABSTRACT BACKGROUND: Atrial fibrillation (AF) is the most common form of supraventricular arrhythmia following ST-elevation myocardial infarction (STEMI). The CHA2DS2-VASc and CHADS2 scores are used to estimate thromboembolic risk in cases of AF. Their usefulness in predicting the development of AF in patients presenting STEMI is unknown. OBJECTIVE: To e
Sao Paulo Med. J.. Publicado em: 22/07/2019
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14. Does Crop-Livestock-Forest Systems Contribute to Soil Quality in Brazilian Savannas?
ABSTRACT In this paper we discuss the impact on conversion degraded pasture areas into an integrated crop, livestock and forest system (ICLFS). We collected 30 soil samples at 0-0.1 m depth in five agroforestry systems, degraded pasture and native areas along Brazilian Cerrado biome. We analyzed the influence of chemical variables on microbial biomass carbon
Floresta Ambient.. Publicado em: 01/07/2019
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15. Manutenção do trabalho e presença de condições crônicas em idosos comunitários: evidências da Rede Fibra-BH
Resumo Este estudo transversal foi conduzido em uma amostra probabilística de 597 idosos comunitários residentes em Belo Horizonte, com o objetivo de avaliar quais condições crônicas apresentam associações independentes com a permanência do idoso no mercado de trabalho, a fim de verificar a influência de cada uma isoladamente. A análise multivariad
Ciênc. saúde coletiva. Publicado em: 30/05/2019
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16. Two-dimensional Determination of the Decision Boundary for a Radar Detection Method in the Moment Space
ABSTRACT: The radar detection with decision making in the moments space (DRACEC method) is based on a statistical analysis to determine the boundary between the background (absent target) and the anomaly (present target) classes. In this article, the boundary is taken as an ellipse and is calculated for two dimensions, emphasizing its geometric interpretatio
J. Aerosp. Technol. Manag.. Publicado em: 09/05/2019
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17. Crianças e adolescentes em vulnerabilidade social: bem-estar, saúde mental e participação em educação
Resumo Objetivo Analisar a condição de vida de famílias em vulnerabilidade social e sua potencial relação com bem-estar, saúde mental e a participação escolar das crianças e adolescentes. Método Pesquisa de método misto que utilizou questionário sociodemográfico, mapas corporais narrados e entrevistas semiestruturadas para a coleta de dados. O
Cad. Bras. Ter. Ocup.. Publicado em: 09/05/2019
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18. The Relation Between Echocardiographic Epicardial Fat Thickness and CHA2DS2-VASc Score in Patients with Sinus Rhythm
Abstract Objective: To evaluate the predictive value of epicardial fat thickness (EFT) in CHA2DS2-VASc (congestive heart failure, hypertension, age ≥75 years, diabetes mellitus, previous stroke or transient ischemic attack, vascular disease, age 65-74 years, sex category) score risk groups. Methods: A total of 158 consecutive patients (75 females, 83 mal
Braz. J. Cardiovasc. Surg.. Publicado em: 2019-02
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19. Clinical and radiographic outcomes of upper thoracic versus lower thoracic upper instrumented vertebrae for adult scoliosis: a meta-analysis
The aim of this study was to evaluate the clinical and radiographic outcomes of upper thoracic (UT) versus lower thoracic (LT) upper instrumented vertebrae (UIV) for adult scoliosis by meta-analysis. We conducted a literature search in three databases to retrieve related studies up to March 15, 2017. The preliminary screened studies were assessed by two revi
Braz J Med Biol Res. Publicado em: 26/02/2018
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20. Slash Spatial Linear Modeling: Soybean Yield Variability as a Function of Soil Chemical Properties
ABSTRACT: In geostatistical modeling of soil chemical properties, one or more influential observations in a dataset may impair the construction of interpolation maps and their accuracy. An alternative to avoid the problem would be to use most robust models, based on distributions that have heavier tails. Therefore, this study proposes a spatial linear model
Rev. Bras. Ciênc. Solo. Publicado em: 15/02/2018
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21. Is waste collection associated with hepatitis B infection? A meta-analysis
Abstract This meta-analysis, which is based on a previously published systematic review, aims to contribute to the scientific discussion on hepatitis B virus (HBV) infection in workers who are exposed to domestic and healthcare wastes. Publications were sought which had been made available on the data used by December 2013 and updated to December 2016. The q
Rev. Soc. Bras. Med. Trop.. Publicado em: 2017-12
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22. Multi-criteria decision analysis and spatial statistic: an approach to determining human vulnerability to vector transmission of Trypanosoma cruzi
BACKGROUND Chagas disease (CD), caused by the protozoan Trypanosoma cruzi, is a neglected human disease. It is endemic to the Americas and is estimated to have an economic impact, including lost productivity and disability, of 7 billion dollars per year on average. OBJECTIVES To assess vulnerability to vector-borne transmission of T. cruzi in domiciliary
Mem. Inst. Oswaldo Cruz. Publicado em: 2017-10
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23. The influence of allopurinol and post-conditioning on lung injuries induced by lower-limb ischemia and reperfusion in Wistar rats
Abstract Purpose: To analyze the effects of allopurinol and of post-conditioning on lung injuries induced by lower-limb ischemia and reperfusion. Methods: Thirty rats were used. They were divided in 5 groups: (1) group A: abdominal aortic dissection only, (2) group B: ischemia and reperfusion, (3) group C: administered allopurinol (100mg/Kg) a few hours b
Acta Cir. Bras.. Publicado em: 2017-09
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24. Tailored Degree of Functionalization and Length Preservation of Multiwalled Carbon Nanotubes by an Optimized Acid Treatment Process
The introduction of oxygen groups in carbon nanotubes is considered crucial for many applications. However, there is a lack of controlled functionalization methods which ensure nanotubes with specific property values according to each interest. In this work, acid treatments of multiwalled carbon nanotubes (MWCNTs) employing an optimized ultrasound process wi
J. Braz. Chem. Soc.. Publicado em: 2017-07