Results 31 to 40 of about 1,916 (217)

“It's Not Deterministic and It Will Never Be Deterministic”: A Qualitative Study on Stakeholder Perspectives of Polygenic Risk Score Testing for Post‐Traumatic Stress Disorder

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Post‐traumatic stress disorder (PTSD) causes significant mental and physical distress, yet only a small subset of individuals exposed to trauma develop the disorder. Scientists and clinicians are still unable to predict who will get the disorder or how it will manifest.
Brandy M. Fox
wiley   +1 more source

Enhancement of stability of metastable states in the presence of Lévy noise

open access: yesSciPost Physics
The barrier-crossing event for superdiffusion characterized by symmetric Lévy flights is analyzed. Starting from the fractional Fokker-Planck equation, we derive an integro-differential equation along with the necessary conditions to calculate the mean ...
Alexander A. Dubkov, Claudio Guarcello, Bernardo Spagnolo
doaj   +1 more source

Brain-localized CD4 and CD8 T cells perform correlated random walks and not Levy walks [version 2; peer review: 1 approved, 2 approved with reservations]

open access: yesF1000Research, 2023
Background. For survival of the organism, T cells must efficiently control pathogens invading different peripheral tissues. Whether or not such control is achieved by utilizing different movement strategies in different tissues remains poorly understood.
Barun Majumder   +3 more
doaj   +1 more source

Dynamical continuous time random lévy flights

open access: yes, 2016
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag 2016. The Lévy flights’ diffusive behavior is studied within the framework of the dynamical continuous time random walk (DCTRW) method, while the nonlinear friction is introduced in each step ...
Xiaosong Chen   +3 more
core   +1 more source

Quantifying the Sites of Government, Commercial, and Personal Systems‐Perpetrated Financial Abuse

open access: yesAustralian Journal of Social Issues, EarlyView.
ABSTRACT This study explores the institutional systems through which post‐separation financial abuse is perpetrated. While existing measures seek to quantify the harms experienced by women post‐separation, this study draws on financial, welfare and legal service casefiles to identify where such harms occur. Drawing on 76 de‐identified Victorian service
Kay Cook   +3 more
wiley   +1 more source

Self-avoiding Lévy flights in one dimension

open access: yes, 1987
International audienceWe study the node-avoiding (NALF) and path-avoiding (PALF) extensions of the Lévy flights in one dimension both numerically and analytically.
Derrida, Bernard   +2 more
core   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

open access: yesAdvanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang   +2 more
wiley   +1 more source

Levy Flights in Metaheuristics Optimization Algorithms – A Review

open access: yesApplied Artificial Intelligence, 2018
In recent years, Levy flight (LF) is increasingly being employed as search mechanism in metaheuristics optimization algorithms (MOA) to solve complex real world problems.
Mridul Chawla, Manoj Duhan
doaj   +1 more source

Analytical Investigations into Anomalous Diffusion Driven by Stress Redistribution Events: Consequences of Lévy Flights

open access: yesMathematics, 2022
This research is concerned with developing a generalised diffusion equation capable of describing diffusion processes driven by underlying stress-redistributing type events.
Josiah D. Cleland, Martin A. K. Williams
doaj   +1 more source

The ageing holobiont: crosstalk between telomere dynamics, oxidative stress and the gut microbiome

open access: yesBiological Reviews, EarlyView.
ABSTRACT The gut tissue is at the frontline of early onset of ageing. It exhibits high cell turnover rates and rapid telomere shortening, which can have systemic effects on the developing or senescing organism. We conducted a literature review of studies on the crosstalk between telomere length dynamics, telomerase activity, oxidative stress, and gut ...
Michael L. Pepke   +2 more
wiley   +1 more source

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