Results 71 to 80 of about 46,157 (263)

Voltage drop across Josephson junctions for Lévy noise detection

open access: yesPhysical Review Research, 2020
We propose to characterize Lévy-distributed stochastic fluctuations through the measurement of the average voltage drop across a current-biased Josephson junction.
Claudio Guarcello   +4 more
doaj   +1 more source

The ageing holobiont: crosstalk between telomere dynamics, oxidative stress and the gut microbiome

open access: yesBiological Reviews, EarlyView.
ABSTRACT The gut tissue is at the frontline of early onset of ageing. It exhibits high cell turnover rates and rapid telomere shortening, which can have systemic effects on the developing or senescing organism. We conducted a literature review of studies on the crosstalk between telomere length dynamics, telomerase activity, oxidative stress, and gut ...
Michael L. Pepke   +2 more
wiley   +1 more source

Potential Densities for Taxed Spectrally Negative Lévy Risk Processes

open access: yesRisks, 2019
This paper revisits the spectrally negative Lévy risk process embedded with the general tax structure introduced in Kyprianou and Zhou (2009). A joint Laplace transform is found concerning the first down-crossing time below level 0.
Wenyuan Wang, Xiaowen Zhou
doaj   +1 more source

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  

The Lévy–Khintchine type operators with variable Lipschitz continuous coefficients generate linear or nonlinear Markov processes and semigroups [PDF]

open access: yes, 2011
Ito's construction of Markovian solutions to stochastic equations driven by a Lévy noise is extended to nonlinear distribution dependent integrands aiming at the effective construction of linear and nonlinear Markov semigroups and the corresponding ...
Kolokoltsov, V. N. (Vasiliĭ Nikitich)
core   +1 more source

On the importance of including both sexes in animal studies – insights from home‐cage monitoring

open access: yesBiological Reviews, EarlyView.
ABSTRACT A review of behavioural studies using home‐cage monitoring (HCM) systems revealed that over 61% of studies used only male subjects, with only 24% including both sexes, despite evidence of substantial behavioural differences between male and female animals. This bias could influence the outcomes of biomedical research.
Maša Čater   +12 more
wiley   +1 more source

The optimal control of a Lévy process

open access: yes, 2009
textIn this thesis we study the optimal stochastic control problem of the drift of a Lévy process. We show that, for a broad class of Lévy processes, the partial integro-differential Hamilton-Jacobi-Bellman equation for the value function admits ...
DiTanna, Anthony Santino   +1 more
core  

Environmental Regulation at the Crossroads: A Review of Catalysts and Barriers in Circular Economy Transitions

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Amid growing resource pressures, environmental regulation plays a critical role in enabling the transition to a circular economy (CE). This study conducts a systematic literature review to synthesize how different regulatory approaches—command‐and‐control, market‐based, voluntary, and reflexive—affect CE transitions across economic and ...
Li Yuan
wiley   +1 more source

Lévy processes and Lévy copulas with an application in insurance [PDF]

open access: yes, 2007
This thesis discusses Lévy processes and Lévy copulas. In connection with Lévy processes we treat some of the theory behind infinitely divisible distributions, acknowledging that the two classes are equivalent.Within the class of Lévy processes we will ...
Hunting, Martin
core  

How to Navigate Disrupted Business Models in the 21st Century: At the Crossroads of the Circular Economy and the Industry 4.0 Transition

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Our planet faces a critical crisis, with pollution, resource depletion and biodiversity loss surpassing sustainable limits. Businesses must address these challenges, with the circular economy and Industry 4.0 offering transformative potential through closed‐loop systems, regenerative solutions and advanced technologies.
Agnes Toth‐Peter   +3 more
wiley   +1 more source

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