Results 11 to 20 of about 14,834 (217)
Sharp asymptotic behavior for wetting models in (1+1)-dimension [PDF]
, 2005 We consider continuous and discrete (1+1)-dimensional wetting models which undergo a localization/delocalization phase transition. Using a simple approach based on Renewal Theory we determine the precise asymptotic behavior of the partition function ...
Caravenna, Francesco +2 more
core +5 more sources
On a class of stochastic models with two-sided jumps [PDF]
, 2011 In this paper a stochastic process involving two-sided jumps and a continuous downward drift is studied. In the context of ruin theory, the model can be interpreted as the surplus process of a business enterprise which is subject to constant expense rate
Cheung, ECK
core +1 more source
Markov chains conditioned never to wait too long at the origin [PDF]
, 2009 Motivated by Feller's coin-tossing problem, we consider the problem of conditioning an irreducible Markov chain never to wait too long at 0. Denoting by τ the first time that the chain, X, waits for at least one unit of time at the origin, we consider ...
Doney +7 more
core +3 more sources
Quantitative speeds of convergence for exposure to food contaminants [PDF]
, 2014 In this paper we consider a class of piecewise-deterministic Markov processes (PDMPs) modeling the quantity of a given food contaminant in the body. On the one hand, the amount of contaminant increases with random food intakes and, on the other hand ...
Bouguet, Florian
core +3 more sources
Assessing the efficient cost of sustaining Britain's rail network: Perspectives based on zonal comparisons [PDF]
, 2004 The objective of this paper is to inform the debate on how efficiency targets for Network Rail (formerly Railtrack) should be set during the 2002/03 Interim Review and beyond.
Kennedy, J, Smith, ASJ
core +2 more sources
Local asymptotics for the time of first return to the origin of transient random walk
, 2011 We consider a transient random walk on $Z^d$ which is asymptotically stable, without centering, in a sense which allows different norming for each component.
Doney, Ron, Korshunov, Dmitry
core +1 more source
Ruin Probabilities and Overshoots for General Levy Insurance Risk Processes
, 2004 We formulate the insurance risk process in a general Levy process setting, and give general theorems for the ruin probability and the asymptotic distribution of the overshoot of the process above a high level, when the process drifts to -\infty a.s.
Kluppelberg, Claudia +2 more
core +3 more sources
Randomized observation times for the compound Poisson risk model: The discounted penalty function [PDF]
, 2013 In the framework of collective risk theory, we consider a compound Poisson risk model for the surplus process where the process (and hence ruin) can only be observed at random observation times. For Erlang(n) distributed inter-observation times, explicit
Albrecher, H. +2 more
core +2 more sources
Advanced Healthcare Materials, EarlyView.Zinc‐containing bioactive glass (ZnBG) promotes diabetic wound healing by regulating macrophage extracellular traps (METs). Specifically, ZnBG reduces oxidative stress and inhibits the PAD4 and NLRP3/caspase‐1/GSDMD signaling pathways, thereby suppressing MET formation.
RuiYang Sun +11 more
wiley +1 more source
3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence
Advanced Healthcare Materials, EarlyView.Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes +11 more
wiley +1 more source