StatsFirst-hitting time threshold regression (TR) is well-known for analyzing event time data without the proportional hazards assumption. To date, most applications and software are developed for cross-sectional data. In this paper, using the Markov property
Ya-Shan Cheng +2 more
doaj +1 more source
On the rate of convergence in the weak invariance principle for dependent random variables with applications to Markov chains [PDF]
We prove an invariance principle for non-stationary random processes and establish a rate of convergence under a new type of mixing condition. The dependence is exponentially decaying in the gap between the past and the future and is controlled by an ...
Ion Grama, 'Emile Le Page, M. Peigné
semanticscholar +1 more source
Limits of Multilevel TASEP and similar processes [PDF]
, 2012 We study the asymptotic behavior of a class of stochastic dynamics on interlacing particle configurations (also known as Gelfand-Tsetlin patterns). Examples of such dynamics include, in particular, a multi-layer extension of TASEP and particle dynamics ...
Gorin, Vadim, Shkolnikov, Mykhaylo
core +4 more sources
An evaluation of flow-routing algorithms for calculating contributing area on regular grids [PDF]
Earth Surface DynamicsCalculating contributing area (often used as a proxy for surface water discharge) within a digital elevation model (DEM) or landscape evolution model (LEM) is a fundamental operation in geomorphology.
A. B. Prescott +3 more
doaj +1 more source
Universal first-passage statistics of aging processes [PDF]
, 2017 Many out of equilibrium phenomena, such as diffusion-limited reactions or target search processes, are controlled by first-passage events. So far the general determination of the mean first-passage time (FPT) to a target in confinement has left aside ...
Bénichou, O. +3 more
core +2 more sources
Convergence of dependent walks in a random scenery to fBm-local time fractional stable motions [PDF]
, 2008 It is classical to approximate the distribution of fractional Brownian motion by a renormalized sum $ S_n $ of dependent Gaussian random variables. In this paper we consider such a walk $ Z_n $ that collects random rewards $ \xi_j $ for $ j \in \mathbb Z,
Cohen, Serge, Dombry, Clément
core +3 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
One-Point Probability Distribution Functions of Supersonic Turbulent Flows in Self-Gravitating Media
, 2000 Turbulence is essential for understanding the structure and dynamics of molecular clouds and star-forming regions. There is a need for adequate tools to describe and characterize the properties of turbulent flows.
Balkovsky E. +19 more
core +2 more sources
Multiscale assimilation of Advanced Microwave Scanning Radiometer-EOS snow water equivalent and Moderate Resolution Imaging Spectroradiometer snow cover fraction observations in northern Colorado [PDF]
, 2012 Eight years (2002–2010) of Advanced Microwave Scanning Radiometer–EOS (AMSR-E) snow water equivalent (SWE) retrievals and Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover fraction (SCF) observations are assimilated separately or jointly ...
Arsenault, Kristi R +6 more
core +2 more sources