Results 71 to 80 of about 33,542 (293)

Existence of positive almost periodic solutions for delay Lotka-Volterra cooperative systems

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we study a Lotka-Volterra cooperative system of equations with time-varying delays and distributed delays. By using Mawhin's continuation theorem of coincidence degree theory, we obtain sufficient conditions for the existence of ...
Kaihong Zhao, Juqing Liu
doaj  

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang   +10 more
wiley   +1 more source

Solvability of periodic boundary-value problems for second-order nonlinear differential equation involving fractional derivatives

open access: yesElectronic Journal of Differential Equations, 2014
This article concerns the existence of solutions to periodic boundary-value problems for second-order nonlinear differential equation involving fractional derivatives.
Taiyong Chen, Wenbin Liu
doaj  

Innate Immune Reprogramming Mediated by Endogenous Retroelement Dysregulation Drives Multiple Sclerosis Progression

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Epigenetic reprogramming in hematopoietic stem and progenitor cells (HSPCs) and downstream myeloid cells, mediated by H3.3 downregulation and endogenous retroelement (ERE) overexpression, contributes to the progression of multiple sclerosis (MS). ABSTRACT Background Skewed myelopoiesis in the bone marrow has been identified as a key driver of multiple ...
Li‐Mei Xiao   +6 more
wiley   +1 more source

Existence of periodic solutions for second order delay differential equations with impulses

open access: yesElectronic Journal of Differential Equations, 2011
Using the coincidence degree theory by Mawhin, we prove the existence of periodic solutions for the second-order delay differential equations with impulses $displaylines{ x''(t)+f(t,x'(t))+g(x(t-au(t))=p(t),quad tgeq0,; teq t_k,cr Delta x(t_k)=I_k(x(
Lijun Pan
doaj  

Dirac–Bergmann analysis and degrees of freedom of coincident f(Q)-gravity

open access: yesThe European Physical Journal C
AbstractWe investigate the propagating degrees of freedom off(Q)-gravity in a 4-dimensional space-time under the imposition of the coincident gauge by performing the Dirac–Bergmann analysis. In this work, we start with a top-down reconstruction of the metric-affine gauge theory of gravity based only on the concept of a vector bundle.
Kyosuke Tomonari, Sebastian Bahamonde
openaire   +3 more sources

Assessment of Skin in Patients With Systemic Sclerosis Using High‐Frequency Ultrasound and Shear Wave Elastography: A Comparative Study With Histology, Molecular, and Clinical Parameters

open access: yesArthritis Care &Research, EarlyView.
Objective Ultrasound (US) has been proposed as a potential tool for assessing skin fibrosis in systemic sclerosis (SSc). However, a large‐scale comparison of US‐based assessment with histologic markers of skin fibrosis has not been reported. We evaluated US‐based skin assessments for their face validity (differentiation between involved SSc and healthy
Ruhani Desai   +12 more
wiley   +1 more source

Periodic solutions for a food chain system with Monod-Haldane functional response on time scales

open access: yesElectronic Journal of Differential Equations, 2014
In this article, we study a three species food chain model on time scales, with Monod-Haldane functional response and time delay. With the help of coincidence degree theory, we establish the existence of periodic solutions.
Kejun Zhuang
doaj  

Evaluation of a novel EHR sidecar application to display RA clinical outcomes during clinic visits: results of a stepped‐wedge cluster randomized pragmatic trial

open access: yesArthritis Care &Research, Accepted Article.
Objective We developed a novel EHR sidecar application to visualize key rheumatoid arthritis (RA) outcomes, including disease activity, physical function, and pain, via a patient‐facing graphical interface designed for use during outpatient visits (“RA PRO dashboard”).
Gabriela Schmajuk   +16 more
wiley   +1 more source

Correlation between clinical diagnostics and necropsical findings

open access: yesArchivo Médico de Camagüey, 2020
Background: the indices of discrepancy and coincidence of the causes of death between the clinical and morphological diagnosis constitute, indirectly, an indicator of the quality of medical care. Objective: to determine the relationship between clinical
Alberto José Piamo-Morales   +5 more
doaj  

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