Results 111 to 120 of about 5,123,051 (393)

Random walk in random environment and their time-reversed counterpart [PDF]

open access: yesarXiv, 2019
The random walk in Dirichlet environment is a random walk in random environment where the transition probabilities are independent Dirichlet random variables. This random walk exhibits a property of statistical invariance by time-reversal which leads to several results.
arxiv  

The restaurant at the end of the random walk: recent developments in the description of anomalous transport by fractional dynamics

open access: yes, 2004
Fractional dynamics has experienced a firm upswing during the past few years, having been forged into a mature framework in the theory of stochastic processes.
R. Metzler, J. Klafter
semanticscholar   +1 more source

The PTTG1/VASP axis promotes oral squamous cell carcinoma metastasis by modulating focal adhesion and actin filaments

open access: yesMolecular Oncology, Volume 19, Issue 5, Page 1517-1531, May 2025.
VASP was found to be overexpressed in metastatic oral squamous cell carcinoma (OSCC) tissues. Notably, PTTG1‐ and VASP‐deficient OSCC cells demonstrated suppressed metastatic properties by disrupting the interaction between the cytoskeleton and focal adhesion (FAs) in the filopodia region.
Suyeon Park   +6 more
wiley   +1 more source

Weighted network motifs as random walk patterns

open access: yesNew Journal of Physics, 2022
Over the last two decades, network theory has shown to be a fruitful paradigm in understanding the organization and functioning of real-world complex systems.
Francesco Picciolo   +3 more
doaj   +1 more source

Persistence exponent for random walk on directed versions of $Z^2$ [PDF]

open access: yesarXiv, 2015
We study the persistence exponent for random walks in random sceneries (RWRS) with integer values and for some special random walks in random environment in $\mathbb Z^2$ including random walks in $\mathbb Z^2$ with random orientations of the horizontal layers.
arxiv  

Power-law random walks

open access: yes, 2006
We present some new results about the distribution of a random walk whose independent steps follow a $q-$Gaussian distribution with exponent $\frac{1}{1-q}; q \in \mathbb{R}$.
A. Plastino   +9 more
core   +3 more sources

SKA1 promotes oncogenic properties in oral dysplasia and oral squamous cell carcinoma, and augments resistance to radiotherapy

open access: yesMolecular Oncology, Volume 19, Issue 4, Page 1054-1074, April 2025.
The mitosis‐related gene SKA1 was among 629 genes consistently dysregulated in OSCC across nine public gene expression datasets. In OSCC cell lines, SKA1 promoted proliferation and migration, enhanced radioresistance, and reduced radiation‐induced senescence.
Alexander Michael Grandits   +7 more
wiley   +1 more source

RANDOM WALK HYPOTHESIS IN FINANCIAL MARKETS [PDF]

open access: yesChallenges of the Knowledge Society, 2017
Random walk hypothesis states that the stock market prices do not follow a predictable trajectory, but are simply random. If you are trying to predict a random set of data, one should test for randomness, because, despite the power and complexity of the ...
Nicolae-Marius JULA, Nicoleta JULA
doaj  

Diffusivity of a random walk on random walks [PDF]

open access: yesarXiv, 2012
We consider a random walk $(Z^{(1)}_n, ..., Z^{(K+1)}_n) \in \mathbb{Z}^{K+1}$ with the constraint that each coordinate of the walk is at distance one from the following one. In this paper, we show that this random walk is slowed down by a variance factor $\sigma_K^2 = \frac{2}{K+2}$ with respect to the case of the classical simple random walk without ...
arxiv  

Maximal-entropy random walk unifies centrality measures

open access: yes, 2012
In this paper analogies between different (dis)similarity matrices are derived. These matrices, which are connected to path enumeration and random walks, are used in community detection methods or in computation of centrality measures for complex ...
C. M. Grinstead   +7 more
core   +1 more source

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