Results 71 to 80 of about 17,806,258 (356)
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Numerous international studies have reported declines in new cancer diagnoses, delayed diagnoses and disruptions in cancer treatment following the implementation of COVID‐19 pandemic public health measures, raising concerns that these effects may ultimately contribute to increased cancer mortality.
Friederike Erdmann +8 more
wiley +1 more source
Stochastic model predictive control for constrained networked control systems with random time delay [PDF]
, 2011 In this paper the continuous time stochastic constrained optimal control problem is formulated for the class of networked control systems assuming that time delays follow a discrete-time, finite Markov chain . Polytopic overapproximations of the system's
Panagiotis Patrinos +9 more
core +1 more source
New Stability Criteria of Discrete Systems With Time-Varying Delays
IEEE Access, 2019 This paper is concerned with the stability criteria of discrete neural networks with two additive input time-varying delays. By using the time delay division and a new summation inequality, a less conservative criterion is derived.
Daixi Liao +5 more
doaj +1 more source
The Effects of Time-Varying Temperature on Delays in Genetic Networks [PDF]
SIAM Journal on Applied Dynamical Systems, 2015 Abstract Delays in gene networks result from the sequential nature of protein assembly. However, it is unclear how models of gene networks that use delays should be modified when considering time-dependent changes in temperature. This is important, as delay is often used in models of genetic oscillators that can be entrained by periodic
Marcella M. Gomez +2 more
openaire +5 more sources
Referral Patterns and Diagnostic Timeliness in Pediatric Cancer: A Hospital‐Based Study in Indonesia
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Timely diagnosis and treatment are critical for improving survival among children with cancer. In low‐ and middle‐income countries (LMICs), delays are common and may be influenced by fragmented referral pathways and diagnostic limitations.
Nur Melani Sari +5 more
wiley +1 more source
Stability Analysis of Switched Systems with Time-Varying Discontinuous Delays [PDF]
, 2017 International audienceA new technique is proposed to ensure global asymptotic stability for nonlinear switched time-varying systems with time-varying discontinuous delays.
Malisoff, Michael +7 more
core +1 more source
Fractal and FractionalIn this paper, we are studying a class of nonlinear fractional difference equations with time-varying delays in Banach space. By means of mathematical induction and the Picard iteration method, we first obtain the existence result of this fractional ...
Shihan Wang, Danfeng Luo
doaj +1 more source
Networked Euler-Lagrangian Systems Synchronization under Time-Varying Communicating Delays
Information, 2019 This paper investigates the problem of the task-space synchronization control for networked Euler-Lagrange systems. In the considered systems, there are time-varying delays existing in the networking links and every subsystem contains uncertainties in ...
Hongjun Wang, Zhuoqun Zhao, Tao Li
doaj +1 more source
On the Uniform Exponential Stability of Time-Varying Systems Subject to Discrete Time-Varying Delays and Nonlinear Delayed Perturbations [PDF]
Mathematical Problems in Engineering, 2015 This paper addresses the problem of stability analysis of systems with delayed time-varying perturbations. Some sufficient conditions for a class of linear time-varying systems with nonlinear delayed perturbations are derived by using an improved Lyapunov-Krasovskii functional.
Hammami, Maher +2 more
openaire +2 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric intramedullary low‐grade gliomas (PIMLGGs) are rare neoplasms that present unique clinical and management challenges. Although surgery remains the primary tool for tissue diagnosis and decompression, complete gross‐total resection is frequently unfeasible due to the infiltrative nature of these lesions.
Olga M. Sergeenko +5 more
wiley +1 more source