Results 41 to 50 of about 367,563 (184)

Noise-induced transitions and shifts in a climate–vegetation feedback model [PDF]

Royal Society Open Science, 2018
Motivated by the extremely important role of the Earth’s vegetation dynamics in climate changes, we study the stochastic variability of a simple climate–vegetation system.
Dmitri V. Alexandrov, Irina A. Bashkirtseva, Lev B. Ryashko   +2 more
doaj   +1 more source

Stochastic ecological kinetics of regime shifts in a time‐delayed lake eutrophication ecosystem

Ecosphere, 2017
Lake eutrophication ecosystems tend to exhibit bistable kinetics with two preferential configurations of oligotrophic and eutrophic states, and perturbations in the environmental parameters can cause regime shifts between two alternative stable states ...
Chunhua Zeng, Qingshuang Xie, Tonghuan Wang, Chun Zhang, Xiaohui Dong, Lin Guan, Kongzhai Li, Weilong Duan   +7 more
doaj   +1 more source

Postsynaptic Stability and Variability Described by a Stochastic Model of Endosomal Trafficking

Frontiers in Cellular Neuroscience, 2019
Neurons undergo dynamic processes of constitutive AMPA-type glutamate receptor (AMPAR) trafficking, such as the insertion and internalization of AMPARs by exocytosis and endocytosis, while stably maintaining synaptic efficacy.
Taegon Kim, Keiko Tanaka-Yamamoto, Keiko Tanaka-Yamamoto   +2 more
doaj   +1 more source

Heritable stochastic switching revealed by single-cell genealogy. [PDF]

PLoS Biology, 2007
The partitioning and subsequent inheritance of cellular factors like proteins and RNAs is a ubiquitous feature of cell division. However, direct quantitative measures of how such nongenetic inheritance affects subsequent changes in gene expression have ...
Benjamin B Kaufmann, Qiong Yang, Jerome T Mettetal, Alexander van Oudenaarden   +3 more
doaj   +1 more source

The Rates of Convergence for Functional Limit Theorems with Stable Subordinators and for CTRW Approximations to Fractional Evolutions

Fractal and Fractional, 2023
From the initial development of probability theory to the present days, the convergence of various discrete processes to simpler continuous distributions remains at the heart of stochastic analysis.
Vassili N. Kolokoltsov
doaj   +1 more source

Discrete random walk models for symmetric Levy-Feller diffusion processes

, 1999
We propose a variety of models of random walk, discrete in space and time, suitable for simulating stable random variables of arbitrary index $\alpha$ ($0< \alpha \le 2$), in the symmetric case.
Bartels, Chambers, Francesco Mainardi, Gianni De Fabritiis, Gillis, Gorenflo, Klafter, Lévy, Mantegna, Rudolf Gorenflo, Tsallis, West   +11 more
core   +4 more sources

Degradation and life prediction of mechanical equipment based on multivariate stochastic process

Frontiers in Mechanical Engineering
IntroductionAccurately predicting the remaining mechanical equipment is of great significance for ensuring the safe operation of the equipment and improving economic efficiency.MethodsTo accurately assess the mechanical equipment degradation, predict its
Chengwang Lin
doaj   +1 more source

Selection to minimise noise in living systems and its implications for the evolution of gene expression

Molecular Systems Biology, 2008
Gene expression, like many biological processes, is subject to noise. This noise has been measured on a global scale, but its general importance to the fitness of an organism is unclear.
Ben Lehner
doaj   +1 more source

Fluctuations and Correlations in Lattice Models for Predator-Prey Interaction

, 2006
Including spatial structure and stochastic noise invalidates the classical Lotka-Volterra picture of stable regular population cycles emerging in models for predator-prey interactions.
D. Neal, H. Haken, Ivan T. Georgiev, J. D. Murray, J. Maynard Smith, Mauro Mobilia, R. M. May, S. R. Dunbar, S. R. Dunbar, Uwe C. Täuber, V. Volterra   +10 more
core   +1 more source

Bright and stable anti-counterfeiting devices with independent stochastic processes covering multiple length scales

Nature Communications
Physical unclonable functions (PUFs) are considered the most promising approach to address the global issue of counterfeiting. Current PUF devices are often based on a single stochastic process, which can be broken, especially since their practical ...
Junfang Zhang, Adam Creamer, Kai Xie, Jiaqing Tang, Luke Salter, Jonathan P. Wojciechowski, Molly M. Stevens   +6 more
doaj   +1 more source