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mercoledì 3 aprile 2024
# gst: elastomers fail from the edge.
giovedì 15 febbraio 2024
# gst: droplets scoot like caterpillars.
venerdì 1 dicembre 2023
# life: POTUS race 2024, Native voters could make a difference
mercoledì 20 settembre 2023
# gst: apropos of collisions of a vortex dipoles, vortex unbinding, vortex pinning to the edge, and emission of rarefaction pulses.
mercoledì 5 luglio 2023
# brain: spiral waves at the edge of neural tissue during cognitive processing.
lunedì 3 luglio 2023
# gst: a flapping forward flight (among Papilio polytes and Kallima inachus)
sabato 13 maggio 2023
# gst: the robustness of a edge spiking.
giovedì 2 marzo 2023
# gst: when science meets poetry, an image of three-dimensional stepped cracks (bistability, and their transition to simple cracks)
lunedì 11 aprile 2022
# gst: apropos of instabilities, viscoelastic liquid bridges can be destabilized by torsion.
sabato 20 novembre 2021
# gst: predict the wetting of the wedge; why do the teapots always drip?
sabato 21 agosto 2021
# gst: apropos of transitions, randomness can stabilize edge states in short- lifetime regions of disordered periodically-driven systems
giovedì 22 luglio 2021
# life: transitions in the edges; to stimulate a shift in thinking, target small groups of people in the "outer edge" or fringe of a network.
giovedì 15 luglio 2021
# gst: apropos of turbulence, self-similarity of turbulent flows with internal and external intermittency
mercoledì 30 giugno 2021
# gst: weird Nature; randomly arranged nanowire networks seem to behave, at the edge of chaos, like cortical neuronal cultures
martedì 22 dicembre 2020
# gst: disorder can induce and modulate topological structures
giovedì 17 ottobre 2019
# gst: fingerprints of reality (2): the stormquake
sabato 9 marzo 2019
# behav: how to gain a competitive advantage over larger rivals by teaming up with another species (among the beetles Nicrophorus vespilloides)
AA << report that conflict within burying beetles Nicrophorus vespilloides influences the fitness that can be gained from interacting with the mite Poecilochirus carabi. Beetles transport these mites to carrion, upon which both species breed. >>
Syuan‐Jyun Sun, Nicholas P.C. Horrocks, Rebecca M. Kilner. Conflict within species determines the value of a mutualism between species. Evolution Letters. Mar 6, 2019. doi: 10.1002/evl3.109.
https://onlinelibrary.wiley.com/doi/full/10.1002/evl3.109
<< In a study featuring a miniature 'gym' for beetles (complete with beetle treadmills), [AA] found that beetles who consistently lose out to members of their own species have the most to gain by forming a mutually-beneficial cross-species partnership. >>
Mighty mites give scrawny beetles the edge over bigger rivals. University of Cambridge. Mar 5, 2019.
https://m.phys.org/news/2019-03-mighty-mites-scrawny-beetles-edge.html
sabato 16 febbraio 2019
# qubit: an energy control approach to build quantum computers: quickly jump two rungs at a time without spilling any water from the glass
<< Dr. Sergey Danilin, (..) describes quantum control-the process of using chips like transmons to build quantum computers-by extending the "climbing a ladder" analogy. "To get a useful quantum system, you need to imagine climbing a ladder while holding a glass of water-it works if one does it smoothly, but if you do it too fast, the water spills. Certainly, this requires a special skill." (..) in the quantum world, the trick for climbing the ladder quickly without spilling any water is by carefully jumping two rungs at a time. >>
Life on the edge in the quantum world. Aalto University. Feb 8, 2019
https://m.phys.org/news/2019-02-life-edge-quantum-world.html
Antti Vepsalainen, Sergey Danilin, Gheorghe Sorin Paraoanu. Superadiabatic population transfer in a three-level superconducting circuit. Science Advances Feb 8, 2019:
Vol. 5, no. 2, eaau5999
doi: 10.1126/sciadv.aau5999
http://advances.sciencemag.org/content/5/2/eaau5999
Also
lunedì 9 aprile 2018
# brain: actually there is chaos in the brain
<< Besides some empirical findings of chaos at different time scales, the focus is on theoretical modeling of change processes explaining and simulating chaotic dynamics. It will be illustrated how some common factors of psychotherapeutic change and psychological hypotheses on motivation, emotion regulation, and information processing of the client's functioning can be integrated into a comprehensive nonlinear model of human change processes >>
Schiepek GK, Viol K, et al. Psychotherapy Is Chaotic - (Not Only) in a Computational World. Front Psychol. 2017 Apr 24;8:379. doi: 10.3389/fpsyg.2017.00379. eCollection 2017.
https://www.ncbi.nlm.nih.gov/m/pubmed/28484401/
<< Cambridge-based researchers provide new evidence that the human brain lives "on the edge of chaos", at a critical transition point between randomness and order. The study provides experimental data on an idea previously fraught with theoretical speculation >>
Public Library of Science. The Human Brain Is On The Edge Of Chaos. Mar 23, 2009.
https://www.sciencedaily.com/releases/2009/03/090319224532.htm
Manfred G. Kitzbichler, Marie L. Smith, et al. Broadband Criticality of Human Brain Network Synchronization. PLoS Comput Biol 2009; 5 (3): e1000314. doi: 10.1371/journal.pcbi.1000314. Mar 20, 2009.
http://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1000314
mercoledì 14 marzo 2018
# gst: chemical waves exhibit fascinating patterns
<< Waves are known in many very different forms; as water waves, light waves or sound waves. But here we are dealing with something quite different - chemical waves >>
<< Typically, one imagines a chemical reaction like this: from specific initial reactants one obtains specific final products. But it does not need to be as simple as that. Self-sustaining oscillations may occur, i.e. periodic changes between two different states >>
<< On a polycrystalline surface, there are then different regions in which the cyclical process occurs at different frequencies. It is precisely this effect that creates those fascinating wave patterns. When a chemical wave moves across the surface and passes from the edge of one grain of crystal to another, it speeds up or slows down, similar to light passing from the air to water. This changes the complex spiral wave structures according to the particular orientation of the grain surface >>
Vienna University of Technology. Chemical waves guide to catalysts of the future. Feb 20, 2018.
https://m.phys.org/news/2018-02-chemical-catalysts-future.html
Yuri Suchorski, Martin Datler, et al. Visualizing catalyst heterogeneity by a multifrequential oscillating reaction. Nature Communication. 2018; 9 (600). doi: 10.1038/s41467-018-03007-3. Feb 9, 2018.