# evol: traces of proto harpist players, 40k year old evidence that Neanderthal's wove strings (three bundles of twisted fibres).

AA << show direct evidence of fibre technology in the form of a 3-ply cord fragment made from inner bark fibres on a stone tool recovered in situ from the same site (Abri du Maras Paleolithic site). Twisted fibres provide the basis for clothing, rope, bags, nets, mats, boats, etc. which, once discovered, would have become an indispensable part of daily life. Understanding and use of twisted fibres implies the use of complex multi-component technology as well as a mathematical understanding of pairs, sets, and numbers. Added to recent evidence of birch bark tar, art, and shell beads, the idea that Neanderthals were cognitively inferior to modern humans is becoming increasingly untenable. >>

B. L. Hardy, M.-H. Moncel, et al. 

Direct evidence of Neanderthal fibre technology and its cognitive and behavioral implications.  Sci Rep 10, 4889. doi: 10.1038/s41598-020-61839-w. Apr 9, 2020.

https://www.nature.com/articles/s41598-020-61839-w

40,000 year old evidence that Neanderthals wove string. CNRS. Apr 9, 2020.

https://www.sciencedaily.com/releases/2020/04/200409110533.htm

FonT

non per essere frainteso sulla prima parte del titolo di questo post ('traces of proto harpist players'), ma quando approccio dissertazioni circa argomenti che trattano 'corde', per associazione (a senso unico) richiamo  in modo automatico, meccanico,  immagini relative alla musica (e al caos); ognuno ha i suoi limiti ...

Also

keyword 'Neanderthal' in FonT

https://flashontrack.blogspot.com/search?q=Neanderthal

# gst: how a virus could cause context-dependent manipulation in host social behavior

<< Honey bees that guard hive entrances are twice as likely to allow in trespassers from other hives if the intruders are infected with the Israeli acute paralysis virus, a deadly pathogen of bees, >>

<< It seems that the virus is changing how the bees smell, and perhaps the infected bees also are behaving in a way that is meant to appease the guards by engaging more in trophallaxis (a process by which honey bees exchange regurgitated food and other liquids), >> Adam Dolezal

Diana Yates. Virus-infected honey bees more likely to gain entrance to healthy hives. University of Illinois at Urbana-Champaign. April 27, 2020.

https://phys.org/news/2020-04-virus-infected-honey-bees-gain-entrance.html

Amy C. Geffre, Tim Gernat, et al. Honey bee virus causes context-dependent changes in host social behavior. PNAS  doi: 10.1073/pnas.2002268117. Apr 27, 2020.

https://www.pnas.org/content/early/2020/04/21/2002268117

keyword 'trophallaxis' in Britannica

https://www.britannica.com/search?query=Trophallaxis

# life: chaotic visions, by Thomas (on the wave of 1or2 achoo from Wuhan)

<< On peut être certain d’une chose : les grands bouleversements politico-idéologiques ne font que commencer. >>

Thomas Piketty. Eviter le pire. 14 Avril, 2020.

https://www.lemonde.fr/blog/piketty

Un nuovo stato sociale per uscire dalla crisi. Le Monde. 26 aprile 2020.

https://www.internazionale.it/opinione/thomas-piketty/2020/04/26/crisi-nuovo-stato-sociale

Also:  the unmentionable GTTD - Great Tea Trolley Disaster, by Bristow

il grande disastro del carrello del the' per Egon. FonT. 13 Dic 2015. 

https://flashontrack.blogspot.com/2015/12/rmx-trade-il-grande-disastro-del.html

# gst: a view of multi-system self-assembly

<< a team of scientists in Turkey has demonstrated the fundamental principles of a universal self-assembly process acting on a range of materials-starting from a few atoms-large quantum dots up to nearly 100 trillion atoms-large human cells. >>

AA << not only demonstrated the self-assembly of simple as well as complex structures that are more than four orders of magnitude different in size and mass. They all come together following a sigmoid function, also known as the S-curve. Curiously, they also observed that the individual deviations from the S-curves follow the statistics of the Tracy-Widom distribution, which manifests in diverse, social, economic, and physical systems.>>

<< To initiate self-assembly, either you force the system to deliver a specific outcome, or you use its inner dynamics to your advantage for universal outcomes. We followed the second approach, >> Serim Ilday.

Scientists uncover principles of universal self-assembly. Bilkent University. Apr 20, 2020.

https://phys.org/news/2020-04-scientists-uncover-principles-universal-self-assembly.html

Ghaith Makey, Sezin Galioglu, et al. Universality of dissipative self-assembly from quantum dots to human cells. Nat. Phys. doi: 10.1038/s41567-020-0879-8. Apr 20, 2020.

https://www.nature.com/articles/s41567-020-0879-8

Also

keyword 'self-assembly' in FonT

https://flashontrack.blogspot.com/search?q=self-assembly

keyword 'self' in Notes (quasi- stochastic poetry)

https://inkpi.blogspot.com/search?q=self

# ai: the dawn of 'Darwinian' self-programming machines, by Quoc Le (Google)

<< Artificial intelligence (AI) is evolving-literally. Researchers have created software that borrows concepts from Darwinian evolution, including "survival of the fittest," to build AI programs that improve generation after generation without human input. The program replicated decades of AI research in a matter of days, and its designers think that one day, it could discover new approaches to AI. >>

<< So Quoc Le, a computer scientist at Google, and colleagues developed a program called AutoML-Zero that could develop AI programs with effectively zero human input, using only basic mathematical concepts a high school student would know. >>

<< Our ultimate goal is to actually develop novel machine learning concepts that even researchers could not find, >> Quoc Le.

Edd Gent. Artificial intelligence is evolving all by itself. Science. Technology. doi: 10.1126/ science.abc2274. Apr. 13, 2020.

https://www.sciencemag.org/news/2020/04/artificial-intelligence-evolving-all-itself

Esteban Real, Chen Liang, et al. AutoML-Zero: Evolving Machine Learning Algorithms From Scratch. arXiv:2003.03384v1 [cs.LG]. Mar 6, 2020.

https://arxiv.org/abs/2003.03384

David Nield. Google Engineers 'Mutate' AI to Make It Evolve Systems Faster Than We Can Code Them. Apr 17, 2020.

https://www.sciencealert.com/coders-mutate-ai-systems-to-make-them-evolve-faster-than-we-can-program-them    

Also 

keyword 'ai' in FonT 

https://flashontrack.blogspot.com/search?q=ai

keyword 'ia' in Notes (quasi-stochastic poetry)

https://inkpi.blogspot.com/search?q=ia

# gst: apropos of strange fluctuations in oscillation and translation

<< The dynamical processes of the inner core rely significantly on the viscous strength of iron. Since plastic deformation of iron may produce crystallographic preferred orientations  (CPO), creep is commonly considered to be a potential source contributing to the seismic anisotropy observed in the inner core. The viscosity of the inner core also influences the rotational dynamics of the Earth. >>

AA << show  that  dislocation  creep  is  a key  mechanism driving  deformation  of  hcp (hexagonal  close  packed) iron  at  inner  core  conditions. The  associated  viscosity  agrees well  with  the  estimates  from  geophysical  observations  supporting  that  the  inner  core  is  significantly less  viscous  than  the  Earth’s  mantle. Such  low  viscosity  rules  out  inner  core  translation,  with  melting on one side  and  solidification  on  the  opposite,  but  allows  for  the  occurrence  of  the  seismically  observed fluctuations  in  inner  core  differential  rotation. >>

Sebastian Ritterbex & Taku Tsuchiya. Viscosity of hcp iron at Earth’s inner core conditions from density functional theory. Sci Rep 10, 6311 (2020). doi: 10.1038/s41598-020-63166-6. Apr 14, 2020.

https://www.nature.com/articles/s41598-020-63166-6

Is the Earth's inner core oscillating and translating anomalously? Ehime University.  Apr 14, 2020.

https://phys.org/news/2020-04-earth-core-oscillating-anomalously.html

# phys: bizarre, cosmic mysteries, when spin particles bump up from 1/2 to 3/2 and more

<< spin is essential when delving into virtually any topic governed by quantum mechanics (..) Yet after almost a century of playing a central role in quantum research, questions about spin remain. For example, why do all the elementary particles that we know about only have spin values of 0, 1/2, or 1? And what new behaviors might exist for particles with spin values greater than 1? The first question may remain a cosmic mystery, but there are opportunities to explore the second. (..)  In the past couple years, researchers have discovered materials in which electrons behave like their spin has been bumped up, from 1/2 to 3/2. (..)  (recently, AA) explored the new behaviors these spins might produce .>>

Bailey Bedford. Peeking into a world of spin-3/2 materials. Joint Quantum Institute. Apr 16, 2020.

https://phys.org/news/2020-04-peeking-world-spin-materials.html

AA << study, for the first time, the effects of strong short-range electron-electron interactions (..) (they) combine symmetry considerations and a perturbative renormalization group analysis to discern three interacting phases that are prone to emerge in the strongly correlated regime (..) (AA) find that symmetry breaking occurs at weaker coupling if the total monopole charge remains constant across the transition. >>

Igor Boettcher. Interplay of Topology and Electron-Electron Interactions in Rarita-Schwinger-Weyl semimetals. 

Phys. Rev. Lett. 124, 127602. Mar 27, 2020.

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.124.127602