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sabato 26 ottobre 2019
# astro: (they) accidentally snap a picture of the beast - lurking in dust - for the first time
martedì 22 ottobre 2019
# gst: the transition from quiescent spherical cap states to self-piloted motile states of volatile droplets
sabato 19 ottobre 2019
# brain: the 'loosely balanced state' of cerebral cortex
giovedì 17 ottobre 2019
# gst: fingerprints of reality (2): the stormquake
mercoledì 16 ottobre 2019
# gst: counterintuitively, even complex processes can be hidden inside flat power spectra
<< Power spectral densities are a common, convenient, and powerful way to analyze signals. So much so that they are now broadly deployed across the sciences and engineering - from quantum physics to cosmology, and from crystallography to neuroscience to speech recognition. The features they reveal not only identify prominent signal-frequencies but also hint at mechanisms that generate correlation and lead to resonance. Despite their near-centuries-long run of successes in signal analysis, here (AA) show that flat power spectra can be generated by highly complex processes, effectively hiding all inherent structure in complex signals. >>
P. M. Riechers, J. P. Crutchfield. Fraudulent White Noise: Flat power spectra belie arbitrarily complex processes. arXiv:1908.11405v1 [cond-mat.stat-mech] Aug 29, 2019. https://arxiv.org/abs/1908.11405
martedì 15 ottobre 2019
# ai: the future where machines will test hypotheses on their own
<< Brian Nord imagines a future where machines test hypotheses on their own (..) Nord has begun applying AI to problems in astronomy, such as identifying unusual astronomical objects known as gravitational lenses. (..) He spoke to Physics about his recent projects and how he thinks AI, also known as machine learning, will change the way researchers do science. >>
Sophia Chen. Paving A Path for AI in Physics Research. Physics 12, 108. Oct 3, 2019. https://physics.aps.org/articles/v12/108
Also
oops! artificial intelligence will kill self-employment. Oct 4, 2019. https://flashontrack.blogspot.com/2019/10/ai-life-oops-artificial-intelligence.html
keyword "ai" in FonT: https://flashontrack.blogspot.com/search?q=ai
lunedì 14 ottobre 2019
# gst: chaotic dynamics modulate complex systems, even in the presence of extrinsic and intrinsic noise
AA << find that chaotic dynamics modulates gene expression and up-regulates certain families of low-affinity genes, even in the presence of extrinsic and intrinsic noise. Furthermore, this leads to an increase in the production of protein complexes and the efficiency of their assembly. Finally, (AA) show how chaotic dynamics creates a heterogeneous population of cell states, and describe how this can be beneficial in multi-toxic environments. >>
Mathias L. Heltberg, Sandeep Krishna, Mogens H. Jensen. On chaotic dynamics in transcription factors and the associated effects in differential gene regulation. Nature Comm. volume 10, Article number: 71 Jan 8, 2019. https://www.nature.com/articles/s41467-018-07932-1
<< Chaos in bodily regulation can optimize our immune system according to a recent discovery made by researchers at the University of Copenhagen's Niels Bohr Institute. The discovery may prove to be of great significance for avoiding serious diseases such as cancer and diabetes. >>
Chaos in the body tunes up your immune system. Niels Bohr Institute.
Jan 16, 2019. https://m.medicalxpress.com/news/2019-01-chaos-body-tunes-immune.html
Also
'l'immaginifico "tracciante ... che svagola nella macina ...' in: 2149 - onda di predazione (to knock seals off the ice). Notes. Dec 17, 2007. https://inkpi.blogspot.com/2007/12/2149-onda-di-predazione-to-knock-seals.html
Also
never boring with chaos and tit-for-tat theories. F.on.T. Jun 12, 2016. https://flashontrack.blogspot.com/2016/06/s-gst-never-boring-with-chaos-and-tit.html