Results 81 to 90 of about 8,164,188 (290)
Modeling long-range dependent Gaussian processes with application in continuous-time financial models [PDF]
This paper considers a class of nonstationary Gaussian processes with possible long-range dependence (LRD) and intermittency. The author proposes a new estimation method to simultaneously estimate both the LRD and intermittency parameter.
Gao, Jiti
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Remarks on continuous dependence for semilinear wave equation with weak damping
Advances in Nonlinear AnalysisThis article provides a rigorous supplement to the work [J. B. Han, K. Y. Wang, R. Z. Xu, and C. Yang, Global quantitative stability of wave equations with strong and weak dampings, J.
Han Jiangbo, Li Hong
doaj +1 more source
A nonstandard Volterra integral equation on time scales
Demonstratio Mathematica, 2019 This paper introduces the more general result on existence, uniqueness and boundedness for solutions of nonstandard Volterra type integral equation on an arbitrary time scales.
Reinfelds Andrejs, Christian Shraddha
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From mice to humans—divergent strategies for intestinal homeostasis and regeneration
FEBS Letters, EarlyView.Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa +2 more
wiley +1 more source
UNIVERSITY OF CAMBRIDGE Numerical Analysis Reports
, 1997 The purpose of this work is to consider an initial value problem for neutral functional differential equations with state dependent and vanishing delays.
England Cb Ew +2 more
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Stability of entropy solutions for Levy mixed hyperbolic-parabolic equations
Electronic Journal of Differential Equations, 2011 We analyze entropy solutions for a class of Levy mixed hyperbolic-parabolic equations containing a non-local (or fractional) diffusion operator originating from a pure jump Levy process.
Kenneth H. Karlsen, Suleyman Ulusoy
doaj
Design and analysis strategies for robust microbiome ageing research
FEBS Letters, EarlyView.The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik +5 more
wiley +1 more source
A new class of copulas with tail dependence and a generalized tail dependence estimator [PDF]
We present a new family of copulas (generalized mean copulas) which is positive comprehensive and allows for upper tail dependence. It includes the Spearman copula and a specific Fréchet copula as special cases.
Fischer, Matthias J., Hinzmann, Gerd
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Reconstructing enzyme evolution by protein engineering
FEBS Letters, EarlyView.Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler +2 more
wiley +1 more source
Bayesian dependence tests for continuous, binary and mixed continuous-binary variables
, 2020 Tests for dependence of continuous, discrete and mixed continuous-discrete variables are ubiquitous in science. The goal of this paper is to derive Bayesian alternatives to frequentist null hypothesis significance tests for dependence.
De Campos, Cassio P., Benavoli, Alessio
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