Results 71 to 80 of about 4,927,965 (236)

Cox Models With Smooth Functional Effect of Covariates Measured With Error [PDF]

open access: yesJournal of the American Statistical Association, 2009
We propose, develop, and implement a fully Bayesian inferential approach for the Cox model when the log hazard function contains unknown smooth functions of the variables measured with error. Our approach is to model nonparametrically both the log-baseline hazard and the smooth components of the log-hazard functions using low-rank penalized splines ...
Cheng, Yu-Jen, Crainiceanu, Ciprian M.
openaire   +3 more sources

Transplantation of Human Urine-Derived Stem Cells Transfected with Pigment Epithelium-Derived Factor to Protect Erectile Function in a Rat Model of Cavernous Nerve Injury

open access: yesCell Transplantation, 2016
The aim of this study was to investigate whether intracavernous injection of urine-derived stem cells (USCs) or USCs genetically modified with pigment epithelium-derived factor (PEDF) could protect the erectile function and cavernous structure in a ...
Qiyun Yang   +12 more
doaj   +1 more source

Multifrequency nonlinear model of magnetic material with artificial intelligence optimization

open access: yesScientific Reports, 2022
Magnetic rings are extensively used in power products where they often operate in high frequency and high current conditions, such as for mitigation of excessive voltages in high-power switchgear equipment.
J. Pawłowski   +2 more
doaj   +1 more source

Association between the sarcopenia index and abnormal liver function in the adult population in the United States: a cross-sectional study

open access: yesFrontiers in Medicine, 2023
BackgroundThe objective of this study was to explore the association between the sarcopenia index and abnormal liver function in adult individuals in the United States.MethodologyThis study employed a rigorous cross-sectional analysis of data derived ...
Jian Xu   +5 more
doaj   +1 more source

ACF estimation via difference schemes for a semiparametric model with $m$-dependent errors

open access: yes, 2020
In this manuscript, we discuss a class of difference-based estimators of the autocovariance structure in a semiparametric regression model where the signal is discontinuous and the errors are serially correlated.
Levine, Michael, Tecuapetla-Gomez, Inder
core  

A variational phase-field model for hydraulic fracturing in porous media

open access: yesComputer Methods in Applied Mechanics and Engineering, 2019
Rigorous coupling of fracture–porous medium fluid flow and topologically complex fracture propagation is of great scientific interest in geotechnical and biomechanical applications.
C. Chukwudozie, B. Bourdin, K. Yoshioka
semanticscholar   +1 more source

Global existence and asymptotic behavior of the solutions to the 3D bipolar non-isentropic Euler–Poisson equation

open access: yesNonlinear Analysis, 2015
In this paper, the global existence of smooth solutions for the three-dimensional (3D) non-isentropic bipolar hydrodynamic model is showed when the initial data are close to a constant state.
Yeping Li
doaj   +1 more source

Emergent Calabi-Yau Geometry [PDF]

open access: yes, 2009
We show how the smooth geometry of Calabi-Yau manifolds emerges from the thermodynamic limit of the statistical mechanical model of crystal melting defined in our previous paper arXiv:0811.2801.
B. Feng   +5 more
core   +2 more sources

STRUCTURE OF THE ANAL CANAL AND ANAL SPHINCTER DOGS IN NORM AND AFTER PROCTECTOMY WITH BRINGING DOWN THE COLON

open access: yesБюллетень сибирской медицины, 2015
With gistostereometry study the structure of the anal canal and anal sphincter dogs in norm and after proctectomy with bringing down the colon, forming neoanus and neosphinkter.
S. R. Bashirov   +3 more
doaj   +1 more source

Na+/Ca2+ Exchanger 1 in Airway Smooth Muscle of Allergic Inflammation Mouse Model

open access: yesFrontiers in Pharmacology, 2018
Cytosolic free Ca2+ ([Ca2+]cyt) is essential for airway contraction, secretion and remodeling. [Ca2+]cyt homeostasis is controlled by several critical molecules, one of which is the Na+/Ca2+ exchanger 1 (NCX1) in the plasma membrane.
Jiexia Wen   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy