Results 31 to 40 of about 634,139 (266)

Hospitalization Through Families’ Eyes: Comparing Inpatient Care Quality for Children With Sickle Cell Disease and Cystic Fibrosis in Canada

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Sickle cell disease (SCD) is a chronic, inherited hemoglobinopathy that requires frequent hospitalization for disease‐related complications. Canadian data on inpatient care is limited. This study compared caregiver‐reported hospital experiences of children with SCD to those with cystic fibrosis (CF), a chronic, autosomal recessive ...
Hailey M. Zwicker, Kyle Kemp, Perri Tutelman, Sharon H. J. Hou, Paul Fairie, Maria Santana, Gregory M. T. Guilcher, Taryn Fay‐McClymont, Glenda Bendiak, Wendy Pelletier, Nicola Wright, Fiona Schulte   +11 more
wiley   +1 more source

Improved input‐to‐state stability criteria for time‐varying switched singular systems

IET Control Theory & Applications
This paper is dedicated to proposing improved input‐to‐state stability (ISS) criteria for a class of continuous‐time time‐varying switched singular systems (CTSSS) under slow/fast/slow‐fast switching signals.
Junjie Lu, Yongqi Li, Shijie Wang, Zhikun She   +3 more
doaj   +1 more source

Controller Design for Continuous-Time Linear Control Systems with Time-Varying Delay

Mathematics
This paper addresses the controller design problem for linear systems with time-varying delays. By constructing a novel Lyapunov–Krasovskii functional incorporating delay-partitioning techniques, we establish delay-dependent stability criteria for the ...
Hongli Yang, Lijuan Yang, Ivan Ganchev Ivanov   +2 more
doaj   +1 more source

Optimal Control for Aperiodic Dual-Rate Systems With Time-Varying Delays

Sensors, 2018
In this work, we consider a dual-rate scenario with slow input and fast output. Our objective is the maximization of the decay rate of the system through the suitable choice of the n-input signals between two measures (periodic sampling) and their times ...
Ernesto Aranda-Escolástico, Julián Salt, María Guinaldo, Jesús Chacón, Sebastián Dormido   +4 more
doaj   +1 more source

Time Toxicity in Wilms Tumor: Quantifying the Burden of Healthcare Interaction in the First Year After Diagnosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook, Veerain Gupta, Nicholas J. Clark, Vijay Rings, Lauren E. Corona, Douglass B. Clayton, Daniel J. Benedetti   +6 more
wiley   +1 more source

Reducible linear time-varying control systems†

International Journal of Control, 1971
Linear systems with time-varying coefficients are of great concern in various fields. However, the theoretical treatment is very difficult and very few achievements have been seen so far. In this paper, the discussions are confined to those classes of systems which can be transformed into linear stationary systems.
openaire   +1 more source

Control of Haptic Systems with Time-varying Delay: a Novel Approach

IFAC Proceedings Volumes, 2013
This paper addresses the stable implementation of high stiffness interactions of objects in the virtual environment. The virtual wall is modeled as a mechanical system including a linear spring characterized by a virtual stiffness and a damper with a virtual damping in parallel.
Quoc Viet Dang, Laurent Vermeiren, Antoine Dequidt, Michel Dambrine   +3 more
openaire   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Time-Varying Lyapunov Functions for Tracking Control of Mechanical Systems With and Without Frictions

IEEE Access, 2020
In this paper, the tracking control problem is investigated for time-varying nonlinear mechanical systems with and without frictions. A reduced-order dynamic and a traditional time-invariant Lyapunov design method is utilized for the case without ...
Weizheng Ren, Bin Zhang, Haiyuan Li, Lutao Yan   +3 more
doaj   +1 more source

Stable Online Control of Linear Time-Varying Systems

CoRR, 2021
Linear time-varying (LTV) systems are widely used for modeling real-world dynamical systems due to their generality and simplicity. Providing stability guarantees for LTV systems is one of the central problems in control theory. However, existing approaches that guarantee stability typically lead to significantly sub-optimal cumulative control cost in ...
Qu, Guannan, Shi, Yuanyuan, Lale, Sahin, Anandkumar, Animashree, Wierman, Adam   +4 more
openaire   +4 more sources