Results 51 to 60 of about 169,109 (267)

Real-Time Estimation of R₀ for COVID-19 Spread

Mathematics, 2021
We propose a real-time approximation of R0 in an SIR-type model that applies to the COVID-19 epidemic outbreak. A very useful direct formula expressing R0 is found.
Theodore E. Simos, Charalampos Tsitouras, Vladislav N. Kovalnogov, Ruslan V. Fedorov, Dmitry A. Generalov   +4 more
doaj   +1 more source

Temporal Trends in and Associations With Nonsteroidal Anti‐inflammatory Drug Prescription in Adult and Pediatric Patients With Inflammatory Bowel Disease

Arthritis Care &Research, EarlyView.
Objective Recent inflammatory bowel disease (IBD) treatment guidelines have recommended against nonsteroidal anti‐inflammatory drug (NSAID) use despite prevalent musculoskeletal symptoms and opioid overuse in this population. Given the discordance between changing national guidelines and potential clinical utility, we sought to assess national temporal
Adam S. Mayer, Rui Xiao, Andrew Grossman, Meenakshi Bewtra, Michael D. George, Pamela F. Weiss   +5 more
wiley   +1 more source

Sobre la determinación de valores de una variable en la geología y en la minería

Minería y Geología, 2001
En la práctica geológica y minera es usual realizar mediciones sobre una red del plano y, a partir de éstas, obtener modelos analíticos y gráficos de cierta característica de una zona y determinar algunos valores de la variable modelada.
Abel Velázquez-Prattz, Dulce M. Atanes-Beatón, Arístides A. Legrá-Lobaina   +2 more
doaj  

Tariff Analysis in Automobile Insurance: Is It Time to Switch from Generalized Linear Models to Generalized Additive Models?

Mathematics, 2023
Generalized Linear Models (GLMs) are the standard tool used for pricing in the field of automobile insurance. Generalized Additive Models (GAMs) are more complex and computationally intensive but allow taking into account nonlinear effects without the ...
Zuleyka Díaz Martínez, José Fernández Menéndez, Luis Javier García Villalba   +2 more
doaj   +1 more source

Use of a Molecular Signature Response Classifier to Inform Treatment Selection Improves Clinical Disease Activity Among Patients with Rheumatoid Arthritis Initiating a Biologic or Targeted Synthetic Disease‐Modifying Antirheumatic Drug

Arthritis Care &Research, EarlyView.
Objective We assessed the effectiveness of PrismRA to improve clinical outcomes among patients with rheumatoid arthritis (RA) initiating treatment with a biologic or targeted synthetic disease‐modifying antirheumatic drug (b/tsDMARD). Methods PrismRA incorporated 19 gene expression features and four clinical features to assess a patient's likelihood of
Fenglong Xie, Timothy Beukelman, Nicholas P. McCormick, Jeffrey R. Curtis   +3 more
wiley   +1 more source

Continuous Ordinal Regression for Analysis of Visual Analogue Scales: The R Package ordinalCont

Journal of Statistical Software, 2020
This paper introduces the R package ordinalCont, which implements an ordinal regression framework for response variables which are recorded on a visual analogue scale (VAS). This scale is used when recording subjects' perception of an intangible quantity
Maurizio Manuguerra, Gillian Z. Heller, Jun Ma   +2 more
doaj   +1 more source

Quartic spline-on-spline interpolation

Journal of Computational and Applied Mathematics, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xieping-Gao, , Shi-Shu, , Kaixin-Fu,
openaire   +1 more source

3D‐Printed Serial Snap‐Through Architectures for Programmable Mechanical Response

Advanced Engineering Materials, EarlyView.
A serial snap‐through architecture is realized using compact 3D‐printed von Mises truss units arranged in a staged cascade. Their geometry and boundary conditions program multistage mechanical responses with plateaux and re‐hardening regimes. An inverted‐compliance model predicts these behaviors and enables analytical design of programmable force ...
Filipe A. Santos
wiley   +1 more source

frailtypack : An R Package for the Analysis of Correlated Survival Data with Frailty Models Using Penalized Likelihood Estimation or Parametrical Estimation

Journal of Statistical Software, 2012
Frailty models are very useful for analysing correlated survival data, when observations are clustered into groups or for recurrent events. The aim of this article is to present the new version of anR package called frailtypack.
Virginie Rondeau, Yassin Mazroui, Juan R. Gonzalez   +2 more
doaj  

Exponential Splines of Complex Order

, 2013
We extend the concept of exponential B-spline to complex orders. This extension contains as special cases the class of exponential splines and also the class of polynomial B-splines of complex order.
Massopust, Peter
core   +1 more source