If you don't have access to the journal, you can download it from here

If you don't have access to the journal, you can download it from here
The paper is on Physical Review E
https://journals.aps.org/pre/abstract/10.1103/PhysRevE.111.044304
New paper, just out.
Often, in real-world situations, one does not know the full structure of a network. However, at the same time, one can often observe some interactions that take place on it, and may be interested in knowing its full structure. For example, one may be detecting some partial criminal activity and may want to determine the whole organization. We consider higher-order networks, which are structures with many-body interactions, and specifically simplicial complexes, and show that one can reconstruct a whole network almost perfectly simply by observing the transient of the dynamics that takes place on it. In fact, we give 3 different algorithms to do it, with different complexities and accuracies, so you can choose which one suits you best.
Supervisors often prefer rule breakers, up to a point
Introducing a #framework for within-host #dynamics and #mutations modelling of #H5N1 #influenza infection in #humans, https://etidiohnew.blogspot.com/2025/04/introducing-framework-for-within-host.html
In "Dynamics of Mixed-Ploidy Populations under Demographic and Environmental Stochasticities", Gaynor et al. discover a tetraploid advantage in times of high environmental stress!
Read now ahead of print! https://www.journals.uchicago.edu/doi/10.1086/734411
An Article in the Annual Review of Condensed Matter Physics on Turbulence by KR Sreenivasan and J Schumacher
https://www.annualreviews.org/content/journals/10.1146/annurev-conmatphys-031620-095842
What is the turbulence problem, and when can we say it’s solved? This deep dive by Sreenivasan & Schumacher explores the math, physics, and engineering challenges of turbulence—from Navier-Stokes equations to intermittency and beyond. A must-read for anyone fascinated by chaos, complexity, and the unsolved mysteries of fluid dynamics!
A summary of the talk presented by KR Sreenivasan in December 2023 at the International Center for Theoretical Sciences (ICTS-TIFR) in Bengaluru, as part of a program on field theory and turbulence.
https://www.youtube.com/watch?v=fwVSBYh-KC4
"Field Theory and Turbulence" program link: https://www.icts.res.in/discussion-meeting/ftt
#FluidDynamics #Physics #NavierStokes #UnsolvedMystery #Mechanics #Dynamics #FluidMechanics #Science #Chaos #TurbulentMotion #Randomness #Chaotic #Fluid #ClassicalMechanics
#Turbulence
#Dynamics of a #Panzootic: Genomic #Insights, #Host Range, and #Epidemiology of the Highly Pathogenic Avian #Influenza A(#H5N1) Clade 2.3.4.4b in #USA, https://etidiohnew.blogspot.com/2025/02/dynamics-of-panzootic-genomic-insights.html
Now available ahead of print: "Colonization Dynamics Explain the Decoupling of Species Richness and Morphological Disparity in Syngnatharian Fishes across Oceans" by Santaquiteria et al. https://www.journals.uchicago.edu/doi/10.1086/733931
For the five cases here, the integrals can be calculated exactly, although they turn out to be piecewise functions.
The equivalent dynamic response curves now look somewhat complicated and are here.
It is difficult to explain the meaning of these curves to someone who is unfamiliar and it took me a while to figure out what they related to. Even then, explaining them to others is equally challenging.
A little more advanced is response of a structure to #Non-periodic #loads and this involves #ConvolutionIntegrals.
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The #DynamicResponse for periodic loading is quite widely known and looks like this, where beta is the ratio of the forcing to natural frequencies and xi is damping ratio.
When the two frequencies are close (beta is around 1) then you can get resonance occuring and this can be hazardous as the dynamic deflections are so much larger than their static equivalents. Fmax is termed the #DynamicMagnificationFactor.
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When I was studying #DynamicLoading of a #Structure, at least for the case of small deflections and a single-degree-of-freedom, we covered both #Periodic and #ImpulsiveLoads. The former take place over an extended period and so damping is important, while for the latter, if they are short-lived, then damping can be neglected.
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In simulation, Caudill & Ralph find that coevolutionary dynamics alone are not sufficient to produce the striking mosaic of levels of toxicity and resistance observed in nature, but with ecological heterogeneity, it did produce such patterns. https://www.journals.uchicago.edu/doi/10.1086/733456
Spatio-temporal #dynamics and #risk cluster #analysis of highly pathogenic avian #influenza (#H5N1) in #poultry: Advancing #outbreak #management through customized regional strategies in #Egypt, https://etidiohnew.blogspot.com/2024/12/spatio-temporal-dynamics-and-risk.html