English
Related papers

Related papers: Classification of anomalous diffusion in animal mo…

200 papers

The detection of echolocation clicks is key in understanding the intricate behaviors of cetaceans and monitoring their populations. Cetacean species relying on clicks for navigation, foraging and even communications are sperm whales…

Sound · Computer Science 2024-02-08 Mak Gracic , Guy Gubnisky , Roee Diamant

Models of the spatial distribution of animals provide useful tools to help ecologists quantify species-environment relationships, and they are increasingly being used to help determine the impacts of climate and habitat changes on species.…

Methodology · Statistics 2020-09-04 Joe Watson , Ruth Joy , Dominic Tollit , Sheila J Thornton , Marie Auger-Méthé

We investigate the translocation of a single stranded DNA (ssDNA) through a pore, which fluctuates between two conformations, by using coupled master equations (ME). The probability density function (PDF) of the first passage times (FPT) of…

Subcellular Processes · Quantitative Biology 2007-05-23 O. Flomenbom , J. Klafter

There is a growing interest in new sensing technologies and processing algorithms to increase the level of driving automation towards self-driving vehicles. The challenge for autonomy is especially difficult for the negotiation of uncharted…

Systems and Control · Electrical Eng. & Systems 2019-10-15 Giulio Reina , Antonio Leanza , Annalisa Milella , Arcangelo Messina

The power spectrum (PS) of mass density fluctuations, independent of `biasing', is estimated from the Mark III catalog of peculiar velocities using Bayesian statistics. A parametric model is assumed for the PS, and the free parameters are…

Astrophysics · Physics 2009-10-28 S. Zaroubi , I. Zehavi , A. Dekel , Y. Hoffman , T. Kolatt

The Surface Water and Ocean Topography (SWOT) mission provides two-dimensional observations of sea surface height (SSH) at unprecedented spatial resolution, enabling exploration of ocean variability down to scales of $O(10~\mathrm{ km})$.…

Atmospheric and Oceanic Physics · Physics 2026-04-16 Ryan Shìjié Dù , Momme Hell , Luc Lenain , Fabrice Ardhuin , A. B. Villas Bôas

We study analytically the single-trajectory spectral density (STSD) of an active Brownian motion as exhibited, for example, by the dynamics of a chemically-active Janus colloid. We evaluate the standardly-defined spectral density, i.e. the…

Statistical Mechanics · Physics 2022-01-26 Alessio Squarcini , Alexandre Solon , Gleb Oshanin

Animals typically forage in groups. Social foraging can help animals avoid predation and decrease their uncertainty about the richness of food resources. Despite this, theoretical mechanistic models of patch foraging have overwhelmingly…

Populations and Evolution · Quantitative Biology 2022-02-14 Subekshya Bidari , Ahmed El Hady , Jacob Davidson , Zachary P Kilpatrick

We theoretically study the transport properties of self-propelled particles on complex structures, such as motor proteins on filament networks. A general master equation formalism is developed to investigate the persistent motion of…

Soft Condensed Matter · Physics 2014-09-19 M. Reza Shaebani , Zeinab Sadjadi , Igor M. Sokolov , Heiko Rieger , Ludger Santen

Movement is fundamental to life, shaping population dynamics, biodiversity patterns, and ecosystem structure. Recent advances in tracking technology have enabled fundamental questions about movement to be tackled, leading to the development…

Populations and Evolution · Quantitative Biology 2020-06-02 Rocío Joo , Simona Picardi , Matthew E. Boone , Thomas A. Clay , Samantha C. Patrick , Vilma S. Romero-Romero , Mathieu Basille

While pulsars possess exceptional rotational stability, large scale timing studies have revealed at least two distinct types of irregularities in their rotation: red timing noise and glitches. Using modern Bayesian techniques, we…

1. Anthropogenic actions cause rapid ecological changes, meaning that animals have to respond before they have time to adapt. Tools to quantify emergent spatial patterns from animal-habitat interaction mechanisms are vital for predicting…

Populations and Evolution · Quantitative Biology 2015-01-06 Jonathan R. Potts , Karl Mokross , Philip C Stouffer , Mark A. Lewis

Pulse Shape Discrimination (PSD) is a widely used technique in many experimental analysis. In this study, we specifically aimed to assess the effectiveness of PSD in accurately measuring decay time. We measured the decay times of a 0.1 wt%…

High Energy Physics - Experiment · Physics 2024-10-29 S. B. Hong , J. S. Park

Scale-invariant spatial or temporal patterns and L\'evy flight motion have been observed in a large variety of biological systems. It has been argued that animals in general might perform L\'evy flight motion with power law distribution of…

chao-dyn · Physics 2009-10-31 A. Harnos , G. Horvath , A. B. Lawrence , G. Vattay

Starting from an age-structured diffusive population growth law for single species in a discrete and periodic habitat, we formulate a stage structured population model with spatially periodic dispersal, mortality and recruitment. With a KPP…

Analysis of PDEs · Mathematics 2020-03-18 Thazin Aye , Jian Fang , Yingli Pan

The analysis of multiwavelength properties of propagating disturbances (PDs) using Hinode/EIS observations is presented. Quasi-periodic PDs were mostly interpreted as slow magnetoacoustic waves in early studies, but recently suggested to be…

Solar and Stellar Astrophysics · Physics 2015-01-19 Tongjiang Wang , Leon Ofman , Joseph M. Davila

We consider a spatially distributed population dynamics model with excitable predator-prey dynamics, where species propagate in space due to their taxis with respect to each other's gradient in addition to, or instead of, their diffusive…

Pattern Formation and Solitons · Physics 2009-11-10 V. N. Biktashev , J. Brindley , A. V. Holden , M. A. Tsyganov

We identify the genetic signature of a selective sweep in a population described by a birth-and-death process with density dependent competition. We study the limit behaviour for large K, where K scales the population size. We focus on two…

Probability · Mathematics 2014-12-30 Charline Smadi

Electrospun polymer jets are imaged for the first time at an ultra-high rate of 10,000 frames per second, investigating the process dynamics, and the instability propagation velocity and displacement in space. The polymer concentration,…

We propose a new approach to improve the precision of astrophysical parameter constraints for the 21cm signal from the epoch of reionisation (EoR). Our method introduces new sets of summary statistics, hereafter `evolution compressed'…

Cosmology and Nongalactic Astrophysics · Physics 2024-06-12 Ian Hothi , Erwan Allys , Benoit Semelin , Francois Boulanger
‹ Prev 1 4 5 6 7 8 10 Next ›