Results 71 to 80 of about 3,991,559 (290)

The Dynamics of Digits: Calculating Pi with Galperin’s Billiards

Mathematics, 2020
In Galperin billiards, two balls colliding with a hard wall form an analog calculator for the digits of the number π . This classical, one-dimensional three-body system (counting the hard wall) calculates the digits of π in a base determined ...
Xabier M. Aretxabaleta, Marina Gonchenko, Nathan L. Harshman, Steven Glenn Jackson, Maxim Olshanii, Grigory E. Astrakharchik   +5 more
doaj   +1 more source

In-matter three-body problem

, 2005
We formulate three-dimensional equations for the finite temperature in-matter three-body problem. Our approach takes into account the full infinite series for the effective pair-interaction kernel, so that all possible two-body sub-processes allowed by ...
Blankleider, B., Kvinikhidze, A. N.
core  

Capture and escape in the elliptic restricted three-body problem

, 2004
Several families of irregular moons orbit the giant planets. These moons are thought to have been captured into planetocentric orbits after straying into a region in which the planet's gravitation dominates solar perturbations (the Hill sphere).
D. Farrelly, Froeschle, S. A. Astakhov
core   +2 more sources

Vestibular Patient Journey: Insights From Vestibular Disorders Association (VeDA) Registry

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Vestibular symptoms impose a high burden of disability. Understanding real‐world diagnostic and treatment pathways can identify care gaps and guide interventions. We aimed to characterize symptom profiles, diagnostic trends, provider involvement, and treatment patterns in vestibular disorders.
Ali Rafati, Sami I. Nassar, Shaun A. Nguyen, Patricia L. Gerend, Michael C. Schubert, Michael T. Teixido, Frederick A. Godley, Joel A. Goebel, Cynthia A. Ryan, Habib G. Rizk, Amir Kheradmand   +10 more
wiley   +1 more source

Three-body problem in heteronuclear mixtures with resonant interspecies interaction

, 2010
We use the zero-range approximation to study a system of two identical bosons interacting resonantly with a third particle. The method is derived from effective field theory.
Hammer, H. -W., Helfrich, K., Petrov, D. S.   +2 more
core   +2 more sources

Posterior Cortical Atrophy in the Asia‐Pacific: A Report From the PCA Asian Workgroup

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Posterior Cortical Atrophy (PCA) is a distinct dementia syndrome primarily affecting spatial abilities and visual processing. It is associated with degeneration in the posterior part of the brain. PCA is subclassified into PCA‐pure and PCA‐plus syndromes based on consensus criteria.
Yuttachai Likitjaroen, Ya‐Ting Chang, Levinia Lim, Pai‐Yi Chiu, Jung‐Lung Hsu, SangYun Kim, Wataru Narita, Na Young Ryoo, Kyoko Suzuki, Nagaendran Kandiah, Sebastian Crutch, Ming‐Chyi Pai   +11 more
wiley   +1 more source

Canceling Effects of Conjunctions Render Higher-order Mean Motion Resonances Weak

The Astrophysical Journal
Mean motion resonances (MMRs) are a key phenomenon in orbital dynamics. The traditional disturbing function expansion in celestial mechanics shows that, for coplanar systems at low eccentricities, p : p  −  q MMRs exhibit a clear hierarchy of strengths ...
Elizabeth K. Jones, Samuel Hadden, Supakrai Teekamongkol, Daniel Tamayo   +3 more
doaj   +1 more source

Retrograde resonance in the planar three-body problem

, 2013
We continue the investigation of the dynamics of retrograde resonances initiated in Morais & Giuppone (2012). After deriving a procedure to deduce the retrograde resonance terms from the standard expansion of the three-dimensional disturbing function, we
Morais, M. H. M., Namouni, F.
core   +2 more sources

ALDOA Promotes Glycolysis and NLRP3/GSDMD Pyroptosis to Accelerate ALS Progression

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Amyotrophic lateral sclerosis (ALS) is characterized by progressive motor neuron degeneration. Glycolytic dysregulation is implicated in disease progression, yet the underlying mechanisms remain unclear. This study investigates how Aldolase A (ALDOA) drives ALS progression through glycolysis‐mediated motor neuron pyroptosis.
Kaixin Yan, Yan Jiang, Yuxuan Yong, Tianshuo Zhang, Niannian Zhang, Qianqian Zeng, Xue Gong, Li Meng, Fangfang Bi, Yongmin Liu   +9 more
wiley   +1 more source

Restricted three-body problem in effective-field-theory models of gravity

, 2014
One of the outstanding problems of classical celestial mechanics was the restricted 3-body prob- lem, in which a planetoid of small mass is subject to the Newtonian attraction of two celestial bodies of large mass, as it occurs, for example, in the sun ...
B. S. DeWitt, Emmanuele Battista, Giampiero Esposito, H. Poincaré, H. Poincaré, H. Poincaré, J. Klauder, L. A. Pars, M. Reed   +8 more
core   +2 more sources