Results 71 to 80 of about 10,636 (233)

Cumulative Radiation Damage and Cumulative Radiation Effect [PDF]

open access: yesActa Radiologica: Oncology, 1983
Different mathematical formulas capable of replacing CRE have been analyzed. The purpose was to develop an expression which would yield a value identical with CRE for regular treatment schedules, but would represent more clearly and more truthfully the radiation damage of tissue. This quantity has been called cumulative radiation damage (CRD). Its unit
openaire   +2 more sources

Variance Ratio Tests for Panels With Cross‐Section Dependence

open access: yesOxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT This paper develops panel variance ratio statistics to examine serial dependence in time series with cross‐sectional dependence. We derive asymptotic properties for panels where the cross‐section dimension N$$ N $$ is fixed or grows with T. Using a factor structure to explain cross‐sectional dependence, we propose a common correlation effects ...
Seongman Moon, Carlos Velasco
wiley   +1 more source

On Regularized Solution for BBGKY Hierarchy of One-Dimensional Infinite System

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2006
We construct a regularized cumulant (semi-invariant) representation of a solution of the initial value problem for the BBGKY hierarchy for a one-dimensional infinite system of hard spheres interacting via a short-range potential.
Tatiana V. Ryabukha
doaj  

The discounted local limit theorems for large deviations

open access: yesLietuvos Matematikos Rinkinys, 2008
Theorems of large deviations, both in the Cramer zone and the Linnik power zones, for the normal approximation of the distribution density function of normalized sum Sv = \sum∞ k=0 vkXk, 0 < v < 1, of i.i.d.
Leonas Saulis, Dovilė Deltuvienė
doaj   +1 more source

Time Averaged CCE

open access: yesOxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT A popular approach to interactive effects panel data models is the common correlated effects (CCE) estimator of Pesaran (Estimation and inference in large heterogeneous panels with a multifactor error structure. Econometrica 74, 967–1012, 2006). The current paper proposes a modified version of this estimator that is useful in a number of cases
Yousef Kaddoura   +2 more
wiley   +1 more source

A local existence theorem of the solution of the Cauchy problem for BBGKY chain of equations represented in cumulant expansions in the space E_{ξ} [PDF]

open access: yesOpuscula Mathematica, 2004
It is proved convergence of solution in cumulant expansions of the initial value problem for BBGKY chain of equations of non-symmetrical one-dimensional system of particles which interact via a short-range potential in the space \(E_{\xi}\) of the ...
Myhaylo O. Stashenko, Halyna M. Hubal
doaj  

Dependence of the Extra‐Cellular Diffusion Coefficient on the Fractions of Neurites and Cell Bodies in Gray Matter

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2426-2439, November 2026.
Purpose The dependence of the long‐time (tortuosity) limit of the extra‐cellular diffusivity on the intra‐cellular volume fraction is of fundamental importance for microstructure modeling. While such dependencies have been explored for the white matter, the tortuosity limit in gray matter is unknown due to complex cell composition and geometry. Here we
Hong‐Hsi Lee   +6 more
wiley   +1 more source

SOFI algorithm, cross-cumulant calculation.

open access: yes, 2016
The nth order cross-cumulant κn of a pixel δ is calculated as a weighted sum over all partitions of a set G of n pixels. The position of pixel δ is given by the geometrical mean of the n pixels within G. By using different sets of n pixels, the nth order
Wim Vandenberg (1501576)   +8 more
core   +1 more source

Empirical cumulant function based parameter estimation in stable laws [PDF]

open access: yes, 2019
Stable distributions are a subclass of infinitely divisible distributions that form the only family of possible limiting distributions for sums of independent identically distributed random variables.
Krutto, Annika
core   +1 more source

Correlations between Background Radiation Inside a Multilayer Interleaving Structure, Geomagnetic Activity, and Cosmic Radiation: A Fourth-Order Cumulant-Based Correlation Analysis

open access: yesMathematics, 2020
Time-series of background radiation (measured inside a multilayer structure), geomagnetic activity, and cosmic-ray activity has been analyzed using linear correlation analysis and a new correlation measure based on the one-dimensional component of the ...
Miguel E. Iglesias-Martínez   +9 more
doaj   +1 more source

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