Results 71 to 80 of about 21,173,420 (246)
Community resource packet: 2003 Oregon Problem Gambling Awareness Week
, 2002 Why Oregon Problem Gambling Awareness Week? -- What is Oregon doing about problem gambling -- What materials and resources are ready for me to use for Oregon Problem Gambling Awareness Week?
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Digital Cognitive Phenotyping for Differential Diagnosis and Monitoring in Neurological Conditions
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective To assess the utility, accessibility, and equivalence to supervised scales of online cognitive assessment in older individuals with cognitive impairment. Methods Patients with Alzheimer's disease (AD, n = 31), idiopathic normal pressure hydrocephalus (iNPH, n = 26), and traumatic brain injury (TBI, n = 23) completed online cognitive ...
Martina Del Giovane +10 more
wiley +1 more source
N-body problem in $R^n$: Necessary conditions for a constant configuration measure
Electronic Journal of Differential Equations, 2008 A formulation of the N-body problem is presented in which $m_{i}$ and $r_{i}in mathbb{R}^d$ are the mass and the position vector of the i-th body, $ x=(sqrt{m_{1}}r_{1},dots ,sqrt{m_{N}}r_{N})in mathbb{R}^n$ and $ n=dN$ ($d=1,2,3$).
Kal Zare
doaj
Canceling Effects of Conjunctions Render Higher-order Mean Motion Resonances Weak
The Astrophysical JournalMean 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 +3 more
doaj +1 more source
One-Dimensional Relativistic Self-Gravitating Systems
EntropyOne of the oldest problems in physics is that of calculating the motion of N particles under a specified mutual force: the N-body problem. Much is known about this problem if the specified force is non-relativistic gravity, and considerable progress has ...
Robert B. Mann
doaj +1 more source
Computational Structure of the N-Body Problem [PDF]
SIAM Journal on Scientific and Statistical Computing, 1989 Summary: This work considers tree algorithms for the N-body problem where the number of particles is on the order of a million. The main concern of this work is the organization and performance of these computations on parallel computers. This work introduces a formulation of the N-body problem as a set of recursive equations based on a few elementary ...
openaire +1 more source
Integrating an N-Body Problem with SDC and PFASST [PDF]
, 2014 Vortex methods for the Navier–Stokes equations are based on a Lagrangian particle discretization, which reduces the governing equations to a first-order initial value system of ordinary differential equations for the position and vorticity of N particles.
Speck, R +6 more
openaire +2 more sources
Oregon problem gambling services data book
, 2011 [Parts 1 and 2]. Problem gambling data -- [Part 3]. County problem gambling data.Title from PDF cover (viewed on June 1, 2020)."OHA 9511 (1/2011)"--Back cover.This archived document is maintained by the State Library of Oregon as part of the Oregon ...
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Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Building on our prior Behavioral Risk Factor Surveillance System analysis identifying adults aged 18–39 as the primary driver of the national increase in self‐reported cognitive disability, we examined factors associated with this rise using 2013–2024 U.S. BRFSS data. Methods We analyzed U.S.
Adam de Havenon +9 more
wiley +1 more source
On Parallel and Distributed N-Body Simulations
MathematicsThe N-body problem is a classic problem involving a system of N discrete bodies mutually interacting in a dynamical system. At any moment in time there are N(N−1)/2 such interactions occurring.
Alexander Brandt
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