Results 71 to 80 of about 10,598,022 (245)

A Donsker Theorem for Lévy Measures [PDF]

open access: yes
Given n equidistant realisations of a Lévy process (Lt; t >= 0), a natural estimator for the distribution function N of the Lévy measure is constructed. Under a polynomial decay restriction on the characteristic function, a Donsker-type theorem is proved,
Richard Nickl, Markus Reiß
core  

Complement Activation Linked to Type II Interferon Signaling in Still Disease

open access: yesArthritis &Rheumatology, EarlyView.
Objective Still disease (SD) is an autoinflammatory syndrome characterized by innate immune dysregulation. Although complement can drive inflammation, its involvement in SD remains to be defined. Thus, we aimed to assess complement activation in SD. Methods Complement was assessed using transcriptomic, proteomic, and in vitro approaches. RNA sequencing
Freya M. C. H. Huijsmans   +115 more
wiley   +1 more source

Markov Regime Switching of Stochastic Volatility Lévy Model on Approximation Mode

open access: yesJournal of Applied Mathematics, 2013
This paper deals with financial modeling to describe the behavior of asset returns, through consideration of economic cycles together with the stylized empirical features of asset returns such as fat tails.
Arthit Intarasit
doaj   +1 more source

Legal and ethical considerations around the use of existing illustrations to generate new illustrations in the anatomical sciences

open access: yesAnatomical Sciences Education, Volume 18, Issue 3, Page 289-300, March 2025.
Abstract It is likely existing anatomical illustrations are often used as the basis for new illustrative works, given not all illustrators have access to human tissues, bodies, or prosections on which to base their illustrations. Potential issues arise with this practice in the realms of copyright infringement and plagiarism when authors are seeking to
Jon Cornwall   +7 more
wiley   +1 more source

Body donor programs in Australia and New Zealand: Current status and future opportunities

open access: yesAnatomical Sciences Education, Volume 18, Issue 3, Page 301-328, March 2025.
Abstract Body donation is critical to anatomy study in Australia and New Zealand. Annually, more than 10,000 students, anatomists, researchers, and clinicians access tissue donated by local consented donors through university‐based body donation programs. However, little research has been published about their operations.
Rebekah A. Jenkin, Kevin A. Keay
wiley   +1 more source

On the reducibility of affine models with dependent Lévy factors

open access: yesModern Stochastics: Theory and Applications
The paper is devoted to the study of the short rate equation of the form \[ \text{d}R(t)=F(R(t))\text{d}t+{\sum \limits_{i=1}^{d}}{G_{i}}(R(t-))\text{d}{Z_{i}}(t),\hspace{1em}R(0)={R_{0}}\ge 0,\hspace{3.33333pt}t\gt 0,\] with deterministic functions
Michał Barski, Rafał Łochowski
doaj   +1 more source

Autism Screening in the First Year and Beyond: Comparison of Multiple Measures

open access: yesAutism Research, EarlyView.
ABSTRACT Autism screening aids in early detection and diagnosis. Several screeners are available for toddlers 16 months and older, but there is little data on the accuracy of screening measures used in the first year of life. A community sample (N = 1641) completed three screeners—M‐CHAT‐R, ITC, VIRSA—online at 6, 9, 12, 18, and 24 months of age ...
Devon N. Gangi   +7 more
wiley   +1 more source

Ruin Time and Severity for a Lévy Subordinator Claim Process: A Simple Approach

open access: yesRisks, 2013
This paper is concerned with an insurance risk model whose claim process is described by a Lévy subordinator process. Lévy-type risk models have been the object of much research in recent years. Our purpose is to present, in the case of a subordinator, a
Claude Lefèvre, Philippe Picard
doaj   +1 more source

Spectral calibration of exponential Lévy Models [2] [PDF]

open access: yes
The calibration of financial models has become rather important topic in recent years mainly because of the need to price increasingly complex options in a consistent way.
Denis Belomestny, Markus Reiß
core  

Clinical and Genetic Factors Associated With Regression in Children With Autism Spectrum Disorders

open access: yesAutism Research, EarlyView.
ABSTRACT Autism spectrum disorder (ASD) is a heterogeneous neurodevelopmental condition with complex genetic and environmental underpinnings. A clinically significant subset of children with ASD experience developmental regression (regASD), characterized by the acute loss of previously acquired skills. The mechanisms, predictors, and molecular basis of
Anna Maruani   +7 more
wiley   +1 more source

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