Model Confidence Set
Mostrando 1-12 de 36 artigos, teses e dissertações.
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1. Predictive model for difficult laryngoscopy using machine learning: retrospective cohort study
Abstract Background Both predictions and predictors of difficult laryngoscopy are controversial. Machine learning is an excellent alternative method for predicting difficult laryngoscopy. This study aimed to develop and validate practical predictive models for difficult laryngoscopy through machine learning. Methods Variables for the prediction of difficul
Brazilian Journal of Anesthesiology. Publicado em: 2022
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2. Association between Cardiovascular Risk in Adolescents and Daily Consumption of Soft Drinks: a Brazilian National Study
Abstract Background: Cardiovascular risk in adolescence is a public health problem that has grown along with the increase in soft drink consumption. Objective: To investigate the association between cardiovascular risk factors and daily consumption of soft drinks in Brazilian adolescents. Methods: We conducted a cross-sectional, national, school-based stu
International Journal of Cardiovascular Sciences. Publicado em: 2022
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3. Nephrostomy tube versus double J ureteral stent in patients with malignant ureteric obstruction. A systematic review and meta-analysis of comparative studies
ABSTRACT Purpose: We aimed to perform a systematic review to assess perioperative outcomes, complications, and survival in studies comparing ureteral stent and percutaneous nephrostomy in malignant ureteral obstruction. Materials and Methods: This review was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses frame
International braz j urol. Publicado em: 2022
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4. Corrente de Sobrevivência à COVID-19
Abstract Introduction: To determine predictors of length of stay (LOS) in the intensive care unit (ICU) after coronary artery bypass grafting (CABG) and to develop a risk scoring system were the objectives of this study. Methods: In this retrospective study, 1202 patients' medical records after CABG were evaluated by a research-made checklist. Tarone-Ware
Arq. Bras. Cardiol.. Publicado em: 2021-02
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5. Predictors of Length of Stay in Intensive Care Unit After Coronary Artery Bypass Grafting: Development a Risk Scoring System
Abstract Introduction: To determine predictors of length of stay (LOS) in the intensive care unit (ICU) after coronary artery bypass grafting (CABG) and to develop a risk scoring system were the objectives of this study. Methods: In this retrospective study, 1202 patients' medical records after CABG were evaluated by a research-made checklist. Tarone-Ware
Braz. J. Cardiovasc. Surg.. Publicado em: 2021-02
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6. A new class of lifetime models and the evaluation of the confidence intervals by double percentile bootstrap
Abstract: In this paper, we introduce a new three-parameter distribution by compounding the Nadarajah-Haghighi and geometric distributions, which can be interpreted as a truncated Marshall-Olkin extended Weibull. The compounding procedure is based on the work by Marshall and Olkin 1997. We prove that the new distribution can be obtained as a compound model w
An. Acad. Bras. Ciênc.. Publicado em: 08/04/2019
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7. Two-Dimensional Numerical Model of the Fracture Process in Steel Fibre Reinforced Concrete with the Continuum Strong Discontinuity Approach and Functional Data Analysis
Abstract This paper presents the formulation of a two-dimensional numeri-cal model able to describe the fracture process in structural mem-bers of steel fibre reinforced concrete (SFRC) from the volume ratio of the fibres and the mechanical properties of the compo-nents: a concrete matrix and a set of steel fibres with a random orientation. The relationship
Lat. Am. j. solids struct.. Publicado em: 08/04/2019
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8. The amount of spermatic cord rotation magnifies the time-related orchidectomy risk in Intravaginal testicular torsion
Abstract Purpose To investigate the roles of age, testicular rotation and time in the surgical outcome of intravaginal testicular torsion (iTT). Patients and Methods We retrieved the records of all iTT patients treated in our unit from January 2012 to January 2014. Explanatory variables were: age (years); presentation delay (PrD, time between symptoms and
Int. braz j urol.. Publicado em: 2016-12
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9. Previsões Macroeconômicas Baseadas em Modelos TVP-VAR: Evidências Para o Brasil
Modelos baseados em vetores autoregressivos com parâmetros variantes no tempo e contendo efeitos heterocedásticos (TVP-VAR) propostos por Koop & Korobilis (2013) são utilizados na previsão da inflação (IPCA), da taxa de juros (SELIC) e do indicador mensal do PIB (IBC-Br) para diversos horizontes. Estratégias de previsão baseadas em seleção e combin
Rev. Bras. Econ.. Publicado em: 2015-12
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10. Prevalence and conditions associated with chronic pelvic pain in women from São Luís, Brazil
The objective of the present study was to estimate the prevalence of chronic pelvic pain in the community of São Luís, capital of the State of Maranhão, Northeastern Brazil, and to identify independent conditions associated with it. A cross-sectional study was conducted, including a sample of 1470 women older than 14 years predominantly served by the publ
Braz J Med Biol Res. Publicado em: 25/07/2014
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11. A multicriteria model for ranking of improvement approaches in construction companies based on the PROMETHÉE II method
The quality of the construction production process may be improved using several different methods such as Lean Construction, ISO 9001, ISO 14001 or ISO 18001. Construction companies need a preliminary study and systematic implementation of changes to become more competitive and efficient. This paper presents a multicriteria decision model for the selection
Prod.. Publicado em: 17/09/2013
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12. Projeção de inflação no Brasil utilizando dados agregados e desagregados : um teste de poder preditivo por horizonte de tempo
O trabalho tem como objetivo comparar a eficácia das diferentes metodologias de projeção de inflação aplicadas ao Brasil. Serão comparados modelos de projeção que utilizam os dados agregados e desagregados do IPCA em um horizonte de até doze meses à frente. Foi utilizado o IPCA na base mensal, com início em janeiro de 1996 e fim em março de 2012.
Publicado em: 14/08/2012