Results 111 to 120 of about 8,714,045 (298)

Global Rather Than Vertical‐Selective Saccadic Abnormalities in Progressive Supranuclear Palsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To test whether vertical saccades are preferentially affected in Progressive Supranuclear Palsy (PSP). Methods PSP patients (n = 24) were compared to age‐matched controls (n = 94) and two degenerative groups (Alzheimer's disease, n = 20; Lewy body disease, n = 50).
Duy Duan Nguyen, Mark Paine, Soohyun Lee, Amir Fazlollahi, Baibin (Ben) Wang, John D. O'Sullivan, Peter J. Nestor   +6 more
wiley   +1 more source

An Augmented Lagrangian Perspective on Differential Flatness-Based Control of Dual Spring-Loaded Inverted Pendulum Model

Controller synthesis for bipedal legged locomotion is challenging. The spring-loaded inverted pendulum (SLIP) model is an effective simplified model for planning bipedal locomotion.
Cao, Zhefeng, Hong, Zejun, Chen, Hua
core   +1 more source

Three-Tiered Controller for Obstacle Avoidance in a PV Panel-Powered Wheeled Mobile Robot: Considering Actuators and Power Electronics Stages

IEEE Access
This research addresses the obstacle avoidance problem in wheeled mobile robots powered by renewable energy by considering all subsystems involved. A three-tier hierarchical controller is developed, integrating the technique of artificial potential ...
Erik Reyes-Reyes, Benjamin Natanael Santiago-Nogales, Ramon Silva-Ortigoza, Magdalena Marciano-Melchor, Jose Rafael Garcia-Sanchez, Angel Adrian Orta-Quintana, Gilberto Silva-Ortigoza, Hind Taud, Miguel Hernandez-Bolanos   +8 more
doaj   +1 more source

Stage‐Dependent β‐Synuclein Links MRI and Cognitive Decline in Alzheimer's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Synaptic degeneration drives cognitive decline in Alzheimer's disease (AD), but synaptic biomarkers are scarce. Brain‐enriched β‐synuclein emerged as a synaptic damage marker. We investigated its diagnostic, prognostic, and structural correlates across the AD continuum.
Ulaş Ay, Merve Alaylioglu, Erdi Sahin, Sanem Sultan Yoruk Oner, Gulce Iskan, Gulce Cosku Yilmaz Cakan, Gozde Kizilates‐Evin, Emre Hari, Elif Kurt, Erdinc Dursun, Basar Bilgic, Hasmet Hanagasi, Hakan Gurvit, Tamer Demiralp, Duygu Gezen‐Ak, Bedia Samanci   +15 more
wiley   +1 more source

Feedforward control of open channel flow using differential flatness

, 2010
[Departement_IRSTEA]Eaux [TR1_IRSTEA]ARCEAUOpen channels are used to distribute water to large irrigated areas. In these systems, ensuring timely water delivery is essential to reduce operational water losses.
Rabbani, T., Bayen-Poisson, Aurélie, Di Meglio, Florent, Litrico, X.   +3 more
core   +1 more source

Active vibration control of vehicle suspension systems using sliding modes, differential flatness and generalized proportional-integral control

Revista Facultad de Ingeniería Universidad de Antioquia, 2011
En este artículo se presenta un enfoque de diseño de esquemas de control activo robusto para sistemas de suspensión de vehículos, usando técnicas de control Proporcional-Integral Generalizado, modos deslizantes y planitud diferencial, para atenuar ...
Esteban Chávez Conde, Francisco Beltrán Carbajal, Antonio Valderrábano González, Antonio Favela Contreras   +3 more
doaj  

White Matter and Perivascular Imaging Changes in Alzheimer's Disease and Cerebral Amyloid Angiopathy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Peak‐width of skeletonized mean diffusivity (PSMD) and diffusion tensor imaging–analysis along the perivascular space (DTI‐ALPS), reflecting white matter integrity and glymphatic function, are altered in Alzheimer's disease (AD).
Debina Laishram, Guangwei Du, Sangam Kanekar, Nandakumar Nagaraja   +3 more
wiley   +1 more source

Average Obstacle Avoidance Controller for Photovoltaic Panel-Powered Wheeled Mobile Robots Considering the Dynamics of All Their Subsystems

IEEE Access
Autonomous navigation in wheeled mobile robots (WMRs) powered by renewable energy sources requires a control framework capable of handling the tight coupling between reactive motion demands and power-stage stability.
Erik Reyes-Reyes, Rogelio Ernesto Garcia-Chavez, Ramon Silva-Ortigoza, Benjamin Natanael Santiago-Nogales, Magdalena Marciano-Melchor, Jose Rafael Garcia-Sanchez, Hind Taud, Gilberto Silva-Ortigoza   +7 more
doaj   +1 more source

A criterion for the differential flatness of a nonlinear control system

, 2017
Let's consider a control system described by the implicit equation $F(x,\dot x) = 0$. If this system is differentially flat, then the following criterion is satisfied : For some integer $r$, there exists a function $φ(y_0, y_1, ..,y_r)$ satisfying the following conditions: (1) The map $(y_0,..,y_{r+1}) \mapsto ( φ( y_0, y_1, ..,y_r), \frac {\partial φ}{
openaire   +2 more sources

Real‐World Longitudinal Data on the Impact of Hydroxychloroquine Blood Level Monitoring on Lupus Outcomes: Results of a Prospective Longitudinal Cohort Study

Arthritis Care &Research, EarlyView.
Objective Hydroxychloroquine (HCQ) is a cornerstone therapy in systemic lupus erythematosus (SLE), but the weight‐based dosing does not account for clinical factors that can introduce individual variability in drug metabolism and clearance. We leveraged longitudinal data from a prospective SLE cohort to identify clinical factors that predict ...
Jay J. Patel, Fauzia Hollangel, Caroline Packee, Amita Kapoor, Brad Rovin, Nathalie Costedoat‐Chalumeau, Shivani Garg   +6 more
wiley   +1 more source