Results 11 to 20 of about 97,120 (209)

IL‐31 levels correlate with pruritus in patients with cholestatic and metabolic liver diseases and is farnesoid X receptor responsive in NASH

Hepatology, EarlyView., 2022
IL‐31 levels correlate with pruritus in patients with cholestatic and metabolic liver diseases Abstract Background and Aims Pruritus is associated with multiple liver diseases, particularly those with cholestasis, but the mechanism remains incompletely understood.
Jun Xu, Ya Wang, Mina Khoshdeli, Matt Peach, Jen‐Chieh Chuang, Julie Lin, Wen‐Wei Tsai, Sangeetha Mahadevan, Wesley Minto, Lauri Diehl, Ruchi Gupta, Michael Trauner, Keyur Patel, Mazen Noureddin, Kris V. Kowdley, Aliya Gulamhusein, Christopher L. Bowlus, Ryan S. Huss, Robert P. Myers, Chuhan Chung, Andrew N. Billin   +20 more
wiley   +1 more source

Joint power control and user grouping mechanism for efficient uplink non‐orthogonal multiple access‐based 5G communication: Utilising the Lèvy‐flight firefly algorithm

IET Networks, EarlyView., 2023
We utilise a metaheuristic optimisation method, inspired by nature, called the Lévy‐flight firefly algorithm (LFA), to tackle the power regulation and user grouping in the NOMA systems. Abstract The non‐orthogonal multiple access strategies have shown promise to boost fifth generation and sixth generation wireless networks' spectral efficiency and ...
Zaid Albataineh, Khaled F. Hayajneh, Haythem Bany Salameh, Raed Al Athamneh, Yaser Jararweh   +4 more
wiley   +1 more source

Cooling down Lévy flights [PDF]

Journal of Physics A: Mathematical and Theoretical, 2007
Let L(t) be a Levy flights process with a stability index \in(0,2), and U be an external multi-well potential. A jump-diffusion Z satisfying a stochastic differential equation dZ(t)=-U'(Z(t-))dt+ (t)dL(t) describes an evolution of a Levy particle of an `instant temperature' (t) in an external force field.
openaire   +2 more sources

Heteroskedastic Levy Flights [PDF]

, 1999
16 pages Revtex, 1 eps ...
openaire   +2 more sources

Reaction, Levy Flights, and Quenched Disorder [PDF]

, 2002
We consider the A + A --> emptyset reaction, where the transport of the particles is given by Levy flights in a quenched random potential. With a common literature model of the disorder, the random potential can only increase the rate of reaction. With a
A. Ott, B.P. Lee, D. Mollison, D. Vernon, H.C. Fogedby, J. Honkonen, J. Honkonen, J. Klafter, J.-M. Park, J.-M. Park, Ligang Chen, M.W. Deem, Michael W. Deem, N. le Tran, V. Pham, V.E. Kravtsov   +15 more
core   +1 more source

Arbitrary Truncated Levy Flight: Asymmetrical Truncation and High-Order Correlations

, 2012
The generalized correlation approach, which has been successfully used in statistical radio physics to describe non-Gaussian random processes, is proposed to describe stochastic financial processes.
Altman, Bouchaud, Chechkin, Cont, Dacorogna, Dmitry V. Vinogradov, Fama, Feller, Gardiner, Gelfand, Kendall, Koponen, Korn, Mantegna, Mantegna, Mazo, McCauley, Mundelbrot, Nayfeh, Podobnik, Podobnik, Rudnick, Shiryaev, Stratonovich, Van Kampen, Vinogradov, Zmijewski, Zolotarev   +27 more
core   +1 more source

Characterizing Human Mobility Patterns in a Large Street Network

, 2009
Previous studies demonstrated empirically that human mobility exhibits Levy flight behaviour. However, our knowledge of the mechanisms governing this Levy flight behaviour remains limited.
B. Jiang, Bin Jiang, I. Rhee, Junjun Yin, R. C. Thomson, Sijian Zhao   +5 more
core   +1 more source

Scintillations and Levy Flights through the Interstellar Medium [PDF]

The Astrophysical Journal, 2003
Temporal broadening of pulsar signals results from electron density fluctuations in the interstellar medium that cause the radiation to travel along paths of different lengths. The Gaussian theory of fluctuations predicts that the pulse temporal broadening should scale with the wavelength as lambda^4, and with the dispersion measure (corresponding to ...
Boldyrev, Stanislav, Gwinn, Carl
openaire   +2 more sources

Levy-flight spreading of epidemic processes leading to percolating clusters

, 1998
We consider two stochastic processes, the Gribov process and the general epidemic process, that describe the spreading of an infectious disease. In contrast to the usually assumed case of short-range infections that lead, at the critical point, to ...
Hilhorst, H. J., Janssen, H. K., Oerding, K., van Wijland, F.   +3 more
core   +1 more source

LFGCN: Levitating over Graphs with Levy Flights [PDF]

2020 IEEE International Conference on Data Mining (ICDM), 2020
To Appear in the 2020 IEEE International Conference on Data Mining (ICDM)
Chen, Yuzhou, Gel, Yulia, Avrachenkov, Konstantin   +2 more
openaire   +3 more sources