Results 111 to 120 of about 1,387,416 (334)

Periodic solutions of a first order differential equation [PDF]

Glasnik Matematicki, 2003
The first order dynamical system $\dot{; ; z}; ; = F t, z)$ is considered, where $F$ is $T$-periodic in time and sub-linear at infinity. Existence of $T$--periodic solution is proved, using degree theory, and applications to non-convex amiltonian systems is given as well.
openaire   +3 more sources

3D MRI Tract‐Specific Spinal Cord Lesion Pattern Improves Prediction of Distinct Neurological Recovery

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To distinguish lateralized motor‐ and sensory‐tract damage after acute spinal cord injury (SCI) and explore its predictive power for motor and sensory recovery. Methods Thirty‐five SCI patients (two female) from a multi‐center data set (placebo‐arm of the Nogo‐A‐Inhibition in SCI trial) underwent routine T2‐weighted sagittal MRI ...
Lynn Farner, Tim M. Emmenegger, Simon Schading‐Sassenhausen, Julia Berroth, Maryam Seif, Armin Curt, Patrick Freund, The Nogo Inhibition in Spinal Cord Injury Study Group   +7 more
wiley   +1 more source

Almost Periodic Solutions of First-Order Ordinary Differential Equations

Mathematics, 2018
Approaches to estimate the number of almost periodic solutions of ordinary differential equations are considered. Conditions that allow determination for both upper and lower bounds for these solutions are found.
Seifedine Kadry, Gennady Alferov, Gennady Ivanov, Artem Sharlay   +3 more
doaj   +1 more source

Glial Fibrillary Acidic Protein Astrocytopathy Based on a Two‐Center Chinese Cohort Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Glial fibrillary acidic protein astrocytopathy (GFAP‐A) is a recently defined nosological form belonging to the class of autoimmune inflammatory disorders affecting the central nervous system (CNS). Here, we report the clinical and MRI characteristics, treatment, and prognosis of a GFAP‐A cohort from two centers in China.
Ti Wu, Hao Zhang, Chao Gao, Qiuhua Yu, Moli Fan, Lin‐Jie Zhang, Haipeng Zhang, Hengri Cong, Yuzhen Wei, Chotima Böttcher, Alexej Verkhratsky, Friedemann Paul, Fu‐Dong Shi, Tian Song   +13 more
wiley   +1 more source

Higher order branching of periodic orbits from polynomial isochrones

Electronic Journal of Differential Equations, 1999
We discuss the higher order local bifurcations of limit cycles from polynomial isochrones (linearizable centers) when the linearizing transformation is explicitly known and yields a polynomial perturbation one-form.
B. Toni
doaj  

Multiplicity of Periodic Solutions for a Higher Order Difference Equation

Abstract and Applied Analysis, 2014
We study a higher order difference equation. By Lyapunov-Schmidt reduction methods and computations of critical groups, we prove that the equation has four M-periodic solutions.
Ronghui Hu
doaj   +1 more source

Timing and Predictive Value of Clinical Conditions Preceding Multiple Sclerosis in the UK Biobank

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Multiple sclerosis (MS) patients often experience a higher incidence of clinical conditions before diagnosis, suggesting a prodromal phase. However, their predictive value and temporal trajectories remain underexplored. We investigated these aspects using the large UK Biobank's population‐based cohort, which provided clinical ...
Andrea Nova, Teresa Fazia, Giovanni Di Caprio, Davide Gentilini, Luisa Bernardinelli, Roberto Bergamaschi   +5 more
wiley   +1 more source

Association of the ICH Score With Withdrawal of Life‐Sustaining Treatment Over a 10‐Year Period

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective The intracerebral hemorrhage (ICH) score was developed to enhance provider communication and facilitate early severity assessment. We examined the association of the ICH score with mortality and withdrawal of life‐sustaining treatment (WLST) in a large, multicenter stroke registry, and evaluated temporal trends in these associations.
Nina Massad, Lili Zhou, Brian Manolovitz, Negar Asdaghi, Hannah Gardener, Hao Ying, Carolina M. Gutierrez, Angus Jameson, David Rose, Mohan Kottapally, Amedeo Merenda, Kristine O'Phelan, Sebastian Koch, Jose G. Romano, Tatjana Rundek, Ayham Alkhachroum   +15 more
wiley   +1 more source

Almost periodic solutions of second order nonlinear differential equations with almost periodic forcing [PDF]

, 1959
C. E. Langenhop, George Seifert
openalex   +1 more source

Digital Activity Markers in Chronic Inflammatory Demyelinating Polyneuropathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate the utility of smartwatch and smartphone‐based activity metrics for assessing disease severity and quality of life in patients with chronic inflammatory demyelinating polyneuropathy (CIDP). Methods In the electronic monitoring of disease activity in patients with CIDP (EMDA‐CIDP) trial, we performed a prospective ...
Lars Masanneck, Jan Voth, Noëmi Gmahl, Konstantin Jendretzky, Niklas Huntemann, Noah M. Werner, Linea Schmidt, Menekse Oeztuerk, Paula Quint, Christina B. Schroeter, Hans Peter Hartung, Thomas Skripuletz, Gerd Meyer zu Hörste, Tobias Ruck, Sven G. Meuth, Marc Pawlitzki   +15 more
wiley   +1 more source