Results 101 to 110 of about 30,323 (260)

Per‐ and Polyfluoroalkyl Substances and Knee Osteoarthritis: Data From the Osteoarthritis Initiative

open access: yesArthritis &Rheumatology, EarlyView.
Objective To examine whether concentrations of specific per‐ and polyfluoroalkyl substances (PFAS) and a mixture of PFAS relate to incident knee osteoarthritis (KOA) and knee pain progression. Methods Among a case‐cohort sample from the OA Initiative (n = 1,878), we examined associations of serum concentrations of eight PFAS with odds of developing ...
Jeffrey B. Driban   +14 more
wiley   +1 more source

From Interferon Signature to the Clinical Landscape: Type I Interferonopathies

open access: yesArthritis &Rheumatology, EarlyView.
Objective TypeI interferonopathies are heterogeneous diseases driven by dysregulated type I interferon (IFN‐I) signaling. Diagnosis is challenging due to clinical/molecular variability and the need for IFN‐I quantification. The aim of this study was to characterize the clinical, immunologic, genetic, molecular profiles of patients with suspected ...
Ismail Yaz   +13 more
wiley   +1 more source

Homoclinic solutions for a class of second-order Hamiltonian systems with locally defined potentials

open access: yesElectronic Journal of Differential Equations, 2017
In this article, we establish sufficient conditions for the existence of homoclinic solutions for a class of second-order Hamiltonian systems $$ \ddot u(t)-L(t)u(t)+\nabla W\bigl(t,u(t)\bigr)=f(t), $$ where L(t) is a positive definite symmetric ...
Xiang Lv
doaj  

Anti‐carbamylated fibrinogen autoantibodies of IgG and IgA isotypes contribute to a better prognostic stratification in very early rheumatoid arthritis: data from the French national ESPOIR cohort

open access: yesArthritis &Rheumatology, Accepted Article.
Objective To investigate the prevalence and longitudinal evolution of anti‐carbamylated fibrinogen antibodies (ACa‐Fib) of IgG and IgA isotypes in early rheumatoid arthritis (RA), and determine whether these antibodies provide additional diagnostic and prognostic information beyond anti‐cyclic citrullinated peptide antibodies (anti‐CCP) and rheumatoid ...
Pauline Brevet   +11 more
wiley   +1 more source

Fast homoclinic solutions for damped vibration systems with subquadratic and asymptotically quadratic potentials

open access: yesElectronic Journal of Differential Equations, 2019
In this article, we study the nonperiodic damped vibration problem $$ \ddot{u}(t)+q(t)\dot u(t)-L(t)u(t)+\nabla W(t,u(t))=0, $$ where L(t) is uniformly positive definite for all $t\in \mathbb{R}$, and W(t,x) is either subquadratic or asymptotically
Yiwei Ye
doaj  

Outcomes in progressive pulmonary fibrosis in systemic autoimmune rheumatic diseases: real‐world data from the ILD‐PRO Registry

open access: yesArthritis &Rheumatology, Accepted Article.
Objective We evaluated baseline characteristics, treatment patterns, and outcomes in patients with systemic autoimmune rheumatic disease‐associated progressive pulmonary fibrosis (SARD‐PPF) and evaluated whether outcomes differed by SARD subtype. Methods The ILD‐PRO Registry is a prospective multicenter US registry of patients with PPF.
Sonali J Bracken   +7 more
wiley   +1 more source

Performance improvement of discrete‐time linear‐quadratic regulators applied to uncertain linear systems using the Tikhonov regularization method

open access: yesAsian Journal of Control, EarlyView.
Abstract The linear‐quadratic regulator (LQR) problem of optimal control of an uncertain discrete‐time linear system (DTLS) is revisited in this paper from the perspective of Tikhonov regularization. We show that an optimally chosen regularization parameter reduces, compared to the classical LQR, the values of a scalar error function, as well as the ...
Fernando Pazos, Amit Bhaya
wiley   +1 more source

Quantum algorithms for matrix geometric means

open access: yesnpj Quantum Information
Matrix geometric means between two positive definite matrices can be defined from distinct perspectives—as solutions to certain nonlinear systems of equations, as points along geodesics in Riemannian geometry, and as solutions to certain optimisation ...
Nana Liu   +3 more
doaj   +1 more source

Revisiting Variable Stars Toward the Globular Cluster NGC 6496 With ATLAS and Gaia Photometry

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We revisit 13 variable stars in the field of the metal‐rich globular cluster NGC 6496, discovered by Abbas et al. (2015; Astronomical Journal 149:40) (hereafter referred to as “MA15”) via time‐series data, spanning 2 years. We improve upon the MA15 characterization of the variables using ATLAS time‐series photometry data, spanning 8 years, in ...
Madison E. Martin   +2 more
wiley   +1 more source

Adaptive Functioning, Sensory Processing, and Behavioral Problems in Autistic Children: The Moderating Role of Gender

open access: yesAutism Research, EarlyView.
ABSTRACT Children with autism spectrum disorder (ASD) frequently experience elevated emotional and behavioral difficulties, yet factors associated with variability remain incompletely understood. Adaptive functioning and sensory processing differences have been linked to behavioral problems, but little is known about whether associations differ between
Cory Shulman, Danielle Bitton, Zili Nir
wiley   +1 more source

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