Results 91 to 100 of about 460,152 (328)

Chromosome‐Level Genome Assembly of the Leafcutter Bee Megachile rotundata Reveals Its Ecological Adaptation and Pollination Biology

open access: yesAdvanced Science, EarlyView.
The genome of Megachile rotundata, an extensively managed solitary pollination bee species, has been sequenced, covering 280.68 Mb and predicting 10 701 genes. The study reveals significant expansions of the Toll gene family and their abundant expression in diapause prepupae, highlighting enhanced immune responses during diapause. This genome serves as
Rangjun Shi   +8 more
wiley   +1 more source

Effects of altered salt intake and diet on cytokines in humans: A 20‐week randomized cross‐over intervention study

open access: yesEuropean Journal of Immunology, Volume 53, Issue 1, January 2023., 2023
The effect of habitual Western diet and salt‐reduced diet on the levels of systemic blood cytokines was analyzed in a placebo‐controlled nutritional intervention study. The results showed that reduced salt intake did not alter the concentrations of any of the analyzed 34 cytokines in blood.
Teemu Niiranen   +4 more
wiley   +1 more source

Markov Chain Approximations to Singular Stable-like Processes [PDF]

open access: yesarXiv, 2012
We consider the Markov chain approximations for singular stable-like processes. First we obtain properties of some Markov chains. Then we construct the approximating Markov chains and give a necessary condition for weak convergence of these chains to singular stable-like processes.
arxiv  

Two-sided reflected Markov-modulated Brownian motion with applications to fluid queues and dividend payouts [PDF]

open access: yes, 2011
In this paper we study a reflected Markov-modulated Brownian motion with a two sided reflection in which the drift, diffusion coefficient and the two boundaries are (jointly) modulated by a finite state space irreducible continuous time Markov chain. The
D'Auria, Bernardo, Kella, Offer
core   +2 more sources

The optimal sink and the best source in a Markov chain

open access: yes, 2012
It is well known that the distributions of hitting times in Markov chains are quite irregular, unless the limit as time tends to infinity is considered. We show that nevertheless for a typical finite irreducible Markov chain and for nondegenerate initial
A. Galves   +16 more
core   +1 more source

DiffMC‐Gen: A Dual Denoising Diffusion Model for Multi‐Conditional Molecular Generation

open access: yesAdvanced Science, EarlyView.
DiffMC‐Gen, a dual‐diffusion model for 2D and 3D molecular generation, simultaneously optimizes multiple key objectives across the drug design process, enabling the generation of novel, target‐specific small‐molecule ligands with high therapeutic potential.
Yuwei Yang   +7 more
wiley   +1 more source

Graphs: Associated Markov Chains [PDF]

open access: yesarXiv, 2012
In this research paper, weighted / unweighted, directed / undirected graphs are associated with interesting Discrete Time Markov Chains (DTMCs) as well as Continuous Time Markov Chains (CTMCs). The equilibrium / transient behaviour of such Markov chains is studied.
arxiv  

Deterministic chaos for Markov chains [PDF]

open access: yesarXiv, 2020
We find that Markov chains with finite state space are Poincare chaotic. Moreover, finite realizations of the chains are arcs of each unpredictable orbit for sure. An illustrating example with a proper numerical simulation is provided.
arxiv  

Mission‐centric decision support in cybersecurity via Bayesian Privilege Attack Graph

open access: yesEngineering Reports, Volume 4, Issue 12, December 2022., 2022
We propose a mission‐centric approach to assessing the risks of cyber attacks on the organization's mission and provide decision support to network security administrators. Our approach uses a unique stochastic model that connects vulnerability impacts to the mission's security requirements and allows selecting the most resilient configuration of ...
Michal Javorník, Martin Husák
wiley   +1 more source

Regularity of harmonic functions for some Markov chains with unbounded range [PDF]

open access: yesarXiv, 2012
We consider a class of continuous time Markov chains on $\Z^d$. These chains are the discrete space analogue of Markov processes with jumps. Under some conditions, we show that harmonic functions associated with these Markov chains are H\"{o}lder continuous.
arxiv  

Home - About - Disclaimer - Privacy