Results 41 to 50 of about 801,850 (308)

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei   +17 more
wiley   +1 more source

Randomized Simplicial Hessian Update

open access: yesMathematics, 2021
Recently, a derivative-free optimization algorithm was proposed that utilizes a minimum Frobenius norm (MFN) Hessian update for estimating the second derivative information, which in turn is used for accelerating the search.
Árpád Bűrmen   +2 more
doaj   +1 more source

Measurable Residual Disease Monitoring During Treatment for Pediatric Acute Myeloid Leukemia in First Relapse

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survival after relapse in pediatric acute myeloid leukemia (AML) remains poor, highlighting the critical importance of identifying prognostic factors to guide optimal relapse management. Methods We investigated the prognostic impact of multiparameter flow cytometry (MFC) measurable residual disease (MRD) in 188 patients with first ...
Camilla Poulsen   +21 more
wiley   +1 more source

Characterizations of the Uniform Distribution by Conditional Expectations [PDF]

open access: yes, 2009
Let $X$ be a random variable on the interval $[a,b]$ with continuous distribution function $F$. If $E(X\vert X>c) = {b+c\over 2}$ for $a < c < b$, then $X$ has an uniform distribution on $[a,b]$. Also let $X_{1:n}
Ouyang, Liang-yuh
core  

Quantum-driven sampling of the almost-uniform distribution via quantum walks

open access: yesNew Journal of Physics
We investigate the use of discrete-time quantum walks to sample from an almost-uniform distribution, in the absence of any external source of randomness.
Marco Radaelli   +2 more
doaj   +1 more source

Problems in Strong Uniform Distribution [PDF]

open access: yesTatra Mountains Mathematical Publications, 2014
Abstract In 1923 A. Khinchin asked if given any B ⊆ [0, 1) of positive Lebesgue measure, we have #{n : 1 ≤ n ≤ N : {nx} ∈ B} → |B| for almost all x with respect to Lebesgue measure ...
Kwo Lik Chan, Radhakrishnan Nair
openaire   +3 more sources

Uniform approximation for period-quadrupling bifurcations. [PDF]

open access: yes, 1997
. We derive a uniform approximation for semiclassical contributions of periodic orbits to the spectral density which is valid for generic period-quadrupling bifurcations in systems with a mixed phase space.
Henning Schomerus   +5 more
core  

On the moments of random variables uniformly distributed over a polytope

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
Suppose X=(X1,X2,…,Xn) is a random vector uniformly distributed over a polytope. In this note, the author derives a formula for E(XirXjs…), (the expected value of XirXjs…), in terms of the extreme points of the polytope.
S. Paramasamy
doaj   +1 more source

Some limit theorems for ratios of order statistics from uniform random variables

open access: yesJournal of Inequalities and Applications, 2017
In this paper, we study the ratios of order statistics based on samples drawn from uniform distribution and establish some limit properties such as the almost sure central limit theorem, the large deviation principle, the Marcinkiewicz-Zygmund law of ...
Shou-Fang Xu, Yu Miao
doaj   +1 more source

Mixture Representations for Generalized Burr, Snedecor–Fisher and Generalized Student Distributions with Related Results

open access: yesMathematics, 2023
In this paper, the representability of the generalized Student’s distribution as uniform and normal-scale mixtures is considered. It is also shown that the generalized Burr and the Snedecor–Fisher distributions can be represented as the scale mixtures of
Victor Korolev, Alexander Zeifman
doaj   +1 more source

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