Results 91 to 100 of about 5,122,542 (341)

Constant invariant solutions of the Poincare center-focus problem

Electronic Journal of Differential Equations, 2010
We consider the classical Poincare problem $$ frac{dx}{dt}=-y-p(x,y),quad frac{dy}{dt}=x+q(x,y) $$ where $p,q$ are homogeneous polynomials of degree $n geq 2$.
Gary R. Nicklason
doaj  

Dynamic Granularity Matrix Space Model Based High Robust Multi-Ellipse Center Extraction Method for Camera Calibration

IEEE Access, 2020
Ellipse center extraction is the important basis of camera calibration with circle arrays calibration board, which directly affects the measurement accuracy of machine vision system.
Changzhi Yu, Fang Ji, Junpeng Xue
doaj   +1 more source

Centrality of Trees for Capacitated k-Center [PDF]

, 2013
There is a large discrepancy in our understanding of uncapacitated and capacitated versions of network location problems. This is perhaps best illustrated by the classical k-center problem: there is a simple tight 2-approximation algorithm for the ...
An, Hyung-Chan, Bhaskara, Aditya, Svensson, Ola   +2 more
core  

Re‐Awakening Public Attention to the Silent Pandemic of Cancer Among Older Adults in Low‐ and Middle‐Income Countries

Aging and Cancer, EarlyView.
ABSTRACT As global populations age, cancer is increasingly becoming a leading cause of morbidity and mortality among older adults, particularly in low‐ and middle‐income countries (LMICs). Despite accounting for the majority of new cancer cases and deaths, older individuals remain underrepresented in cancer research, clinical guidelines, and health ...
Ibrahim Bidemi Abdullateef, Sunkanmi Folorunsho, Abdulazeez Opeyemi Abdulganiyu   +2 more
wiley   +1 more source

The effect of dark matter on stars at the Galactic center: The paradox of youth problem [PDF]

, 2020
Ebrahim Hassani, Reza Pazhouhesh, Hossein Ebadi   +2 more
openalex   +1 more source

Tracking Motor Progression and Device‐Aided Therapy Eligibility in Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterise the progression of motor symptoms and identify eligibility for device‐aided therapies in Parkinson's disease, using both the 5‐2‐1 criteria and a refined clinical definition, while examining differences across genetic subgroups.
David Ledingham, Sahana Sathyanarayana, Charlotte B. Stewart, Robyn Iredale, Victoria Foster, Debra Galley, Mark Baker, Nicola Pavese   +7 more
wiley   +1 more source

Basic Questions on Artin-Tits groups

, 2011
This paper is a short survey on four basic questions on Artin-Tits groups: the torsion, the center, the word problem, and the cohomology ($K(\pi,1)$ problem).
Godelle, Eddy, Paris, Luis
core   +1 more source

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz, Josefine Eck, Joel S. Winston, Kate Baker   +3 more
wiley   +1 more source

Recommendations for Diagnosing and Quantifying treatment outcomes in clinical trials of compulsive sexual behavior disorder

Addictive Behaviors Reports
This article proposes minimum requirements for reporting efficacy in treatment studies of compulsive sexual behavior (CSB). CSB disorder (CSBD) is a condition whose diagnostic criteria were only recently defined by the World Health Organization. Multiple
Jannis Engel, Shane W. Kraus, Li Yan McCurdy, Marc N. Potenza   +3 more
doaj   +1 more source

Life‐Threatening Bradycardia in Anti‐NMDA‐Receptor Encephalitis and a Novel Use for Permanent Pacing

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pediatric anti‐NMDA receptor encephalitis (pNMDARE) is an autoantibody‐mediated disorder that can cause severe autonomic dysfunction, including symptomatic bradycardia and asystole. Dysautonomia can last for years, making it very challenging to manage.
Sarah Tucker, Abhijit Das, Andres Jimenez, Areeba Basit, Yike Jiang, Emily A. Smitherman, Heather Van Mater, Taylor Howard, Alexander J. Sandweiss, Kristen S. Fisher   +9 more
wiley   +1 more source