Results 71 to 80 of about 3,327,271 (332)

Random Variables Aren’t Random

open access: yesMathematics
This paper examines the foundational concept of random variables in probability theory and statistical inference, demonstrating that their mathematical definition requires no reference to randomization or hypothetical repeated sampling. We show how measure-theoretic probability provides a framework for modeling populations through distributions ...
openaire   +4 more sources

On the Sojourn Time of the Brownian Process in a Multidimensional Sphere

open access: yesNonlinear Analysis, 2009
We consider the Brownian motion process B m(s) in the m-space and the distribution F m(t, x, a) = P ˘ sup 0≤s≤t ˛ ˛B m(s) + x ˛ ˛ < a¯ , where a > 0, x ∈ R m, |x| < a.
S. Steišūnas
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

open access: yesFEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang   +9 more
wiley   +1 more source

Random dynamical systems on time scales

open access: yesElectronic Journal of Differential Equations, 2012
The purpose of this paper is to prove the existence and uniqueness of solution for random dynamic systems on time scales.
Cristina Lungan, Vasile Lupulescu
doaj  

Physical mechanisms and models of long-term transformations of radiative recombination in n-GaAs due to the magnetic field treatments

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2016
Simulation of long-time changes in photoluminescence of n-GaAs has been performed, and the mechanism of transformation of the defect structure caused by magnetic field treatments has been represented.
G.V. Milenin
doaj   +1 more source

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

A generalization of the Ricets distribution

open access: yesRevista Técnica de la Facultad de Ingeniería, 2011
In this paper we generalize the Rice's random variable. We calculate the m-th moment, the distribution function, the characteristic function, the mode and the distribution of the products of Rice's -(a, a, v) random variables.
José Sarabia
doaj  

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Hermite-Hadamard, Fejér and trapezoid type inequalities using Godunova-Levin Preinvex functions via Bhunia's order and with applications to quadrature formula and random variable

open access: yesMathematical Biosciences and Engineering
Convex and preinvex functions are two different concepts. Specifically, preinvex functions are generalizations of convex functions. We created some intriguing examples to demonstrate how these classes differ from one another.
Waqar Afzal   +4 more
doaj   +1 more source

PROBABILISTIC FLOW MODEL OF FREIGHT ORDERING WITH CONSIDERATION OF REGULARITIES OF THEIR RECEPTION [PDF]

open access: yesAvtomobilʹnyj Transport (Harʹkov), 2014
An analytical model for calculating the probability of freightage obtaining by concrete carrier is proposed. The model takes into account the freightage waiting time, the parameters of a single freight flow and freight structure parameters.
P. Gorbachov, А. Makarychev, N. Kuzlo
doaj  

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