Results 71 to 80 of about 13,866,830 (310)
ABSTRACT Background Graft‐versus‐host disease (GvHD) remains one of the most significant complications of hematopoietic stem cell transplantation (HSCT). Abatacept, a selective T‐cell costimulation modulator, is a relatively novel prophylactic agent, though pediatric data remain limited.
Matthijs D. Kruizinga +3 more
wiley +1 more source
Distributed Formation Control based on Orientation Alignment and Position Estimation
Formation control is studied for single-and double-integrators on the plane based on orientation alignment and position estimation. It is assumed that agents measure the relative positions of their neighbors with respect to their own local body-fixed ...
Ahn, Hyo-Sung +3 more
core +1 more source
Exact and positive controllability of boundary control systems
Using the semigroup approach to abstract boundary control problems we characterize the space of all exactly reachable states. Moreover, we study the situation when the controls of the system are required to be positive. The abstract results are applied to flows in networks with static as well as dynamic boundary conditions.
ENGEL, KLAUS JOCHEN OTTO +1 more
openaire +5 more sources
ABSTRACT Background Outcomes in relapsed or refractory pediatric and AYA bone sarcomas remain poor, and the impact of early referral to specialized sarcoma centers on survival is unclear. Early centralization of care may improve local and systemic treatment quality, but evidence in this population is limited.
Justyna Antoniuk‐Majchrzak +9 more
wiley +1 more source
Vision-Based Autonomous Landing of a Quadrotor on the Perturbed Deck of an Unmanned Surface Vehicle
Autonomous landing on the deck of an unmanned surface vehicle (USV) is still a major challenge for unmanned aerial vehicles (UAVs). In this paper, a fiducial marker is located on the platform so as to facilitate the task since it is possible to retrieve ...
Riccardo Polvara +4 more
doaj +1 more source
A programmed construction for the positional control [PDF]
Let the motion of a competitively controlled system be described by the differential equation $$dx/dt = f(t,x,u,v),{\kern 1pt} x({t_0}) = {x_0},$$ (1) (1) where x ∊ Rn is the phase vector of the system; u and v are the vectors controlling the actions of the players with restrictions u[t] ∊ P ⊂RP; v[t] ∊ Q ⊂ Ra; P and Q are compacts; the ...
openaire +2 more sources
ABSTRACT The medical burdens of sickle cell disease (SCD) and transfusion‐dependent β‐thalassemia (TDT) are chronic and cumulative, even in children. Yet the effects expand beyond medications and healthcare visits due to their impacts on school attendance, academic performance, and peer engagement.
Mary Ann Etling +2 more
wiley +1 more source
Model predictive quadrotor control: attitude, altitude and position experimental studies [PDF]
This article addresses the control problem of an unmanned quadrotor in an indoor environment where there is lack of absolute localization data. Based on an attached Inertia Measurement Unit, a sonar and an optic flow sensor, the state vector is estimated
Nikolakopoulos, George +5 more
core +1 more source
Adaptive and Robust Sliding Mode Position Control of IPMSM Drives
This paper proposes an adaptive and robust sliding mode control (SMC) for the position control of Interior Permanent Magnet Synchronous Motor (IPMSM) drives.
ZAKY, M., SHABAN, S., FETOUH, T.
doaj +1 more source
ABSTRACT Background Heavy menstrual bleeding (HMB) is a common condition among adolescents and young adults (AYAs) and is the leading cause of iron deficiency anemia (IDA) in this population. Growing evidence suggests that social determinants of health (SDOH) influence menstrual bleeding patterns, access to care, and treatment. However, no studies have
Maria Carter‐Febres +6 more
wiley +1 more source

