Results 81 to 90 of about 1,916 (217)

Truncated Lévy flights and generalized Cauchy processes

open access: yes, 2011
A continuous Markovian model for truncated Lévy flights is proposed. It generalizes the approach developed previously by Lubashevsky et al. [Phys. Rev. E 79, 011110 (2009); Phys. Rev. E 80, 031148 (2009), Eur. Phys. J.
I. A. Lubashevsky, I. Lubashevsky
core   +1 more source

The predatory behavior of ants: an impressive panoply of morphological adaptations

open access: yesInsect Science, EarlyView.
This review focuses on predation in ants, showing the wide diversity of cases from solitary foraging to group hunting tactics, as well as the evolution of mandible shape frequently adapted to capture specific prey. Although most ants are generalist feeders, finding their sugary substances directly on plants or indirectly via sap‐sucking insects, some ...
Alain Dejean   +6 more
wiley   +1 more source

Lévy Flight Model of Gaze Trajectories to Assist in ADHD Diagnoses

open access: yesEntropy
The precise mathematical description of gaze patterns remains a topic of ongoing debate, impacting the practical analysis of eye-tracking data. In this context, we present evidence supporting the appropriateness of a Lévy flight description for eye-gaze ...
Christos Papanikolaou   +3 more
doaj   +1 more source

Microscopic characterization of Lévy flights of light in atomic vapors

open access: yes, 2013
High resolutions figures in the published version.International audienceWe investigate multiple scattering of near-resonant light in a Doppler-broadened atomic vapor.
Kaiser, Robin   +3 more
core   +1 more source

Effect of the microbiome on pathogen susceptibility across four Drosophilidae species

open access: yesInsect Science, EarlyView.
Four Drosophilidae species were used to investigate how variation in the host microbiome influences susceptibility to infection. Microbial composition and abundance differed among species and treatments. The effects of microbiome manipulation on host survival were both species‐ and pathogen‐specific.
Hongbo Sun, Ben Longdon, Ben Raymond
wiley   +1 more source

Lévy flights in binary optimization

open access: yes, 2013
There are many optimization heuristics which involves mutation operator. Reducing them to binary optimization allows to study properties of binary mutation operator.
Klimt, M, Mojzeš, M, Kukal, J.
core  

Small Noise Asymptotics of a Lévy Flights Driven Displacement Process

open access: yes, 2013
In this paper we consider a second-order Langevin equation for the motion of a Lévy flights particle subject to a linear Stokes’ damping. In the limit of small noise amplitude we determine the law of the continuous displacement process as well as the law
Pavlyukevich, Ilya, Hintze, Robert
core   +1 more source

Ants contribute to raspberry pollination in protected cropping systems

open access: yesAgricultural and Forest Entomology, EarlyView.
Ants visited raspberry flowers more frequently than European honey bees (Apis mellifera), Australian stingless bees (Tetragonula carbonaria) and flies, many transporting raspberry pollen on their bodies, indicating potential pollination capacity. Ants were active flower visitors at most times of the day and may extend the daily pollination window and ...
Pia Malm   +6 more
wiley   +1 more source

Lévy-like movement patterns of metastatic cancer cells revealed in microfabricated systems and implicated in vivo

open access: yesNature Communications, 2018
Metastatic cancer cells differ from their non-metastatic counterparts not only in terms of molecular composition and genetics, but also by the very strategy they employ for locomotion.
Sabil Huda   +17 more
doaj   +1 more source

Features of barrier crossing event for Lévy flights

open access: yes, 2016
The steady-state time characteristics of anomalous diffusion in the form of Lévy flights in a symmetric bistable quartic potential are examined. Based on a previously developed technique, we obtain the exact formula for the correlation time of particle ...
A. A. Dubkov, A. A. Kharcheva
core   +1 more source

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