# life: apropos of widespread racism, three in four people (probably even more than three) hold unconscious negative view of world: study

<< Most Australians tested for unconscious bias hold a negative view of Indigenous Australians which can lead to widespread racism, new analysis from The Australian National University (ANU) shows. >>

<< The ANU researchers say 75 per cent of Australians tested using the Implicit Association Test by a joint initiative of universities including Harvard, Yale and the University of Sydney hold a negative implicit or unconscious bias against Indigenous Australians. >>

Three in four people hold negative view of Indigenous people: study. Australian National University. June 9, 2020.

https://phys.org/news/2020-06-people-negative-view-indigenous.html   

Siddharth Shirodkar. Bias against Indigenous Australians: Implicit association test results for Australia. Journal of Australian Indigenous Issues. Vol 22 Issue 3-4.  Dec 2019.

https://search.informit.com.au/documentSummary;dn=150032703197478;res=IELIND   

Also

# brain: immagini #CTZ, cicliche fantasmatiche pervasive visioni ricorrenti. FonT. Jun 29, 2019. 

https://flashontrack.blogspot.com/2019/06/brain-immagini-ctz-cicliche.html

# lang: an 'esperanto' language among birds

<< animals with shared predators can eavesdrop on and respond to each other's calls, indicating that they can partly understand other species. >>

<< Many birds have specific alarm calls, warning others about a predator, (..) I was studying how a specific call of a small bird named the Japanese tit, Parus minor, evokes a visual image of the predator in their minds, in particular, a snake. >> Toshitaka Suzuki.

<< But he then observed that another bird, the coal tit or Periparus ater, also often approached the experimental area during these alarm calls. >>

<< I wondered if these other birds also mentally retrieve 'snake' images from these calls. While they are in the same taxonomic group their calls are otherwise vastly different. >> Toshitaka Suzuki.

How do birds understand 'foreign' calls? Kyoto University. May 19, 2020.

https://phys.org/news/2020-05-birds-foreign.html   

Toshitaka N. Suzuki. Other Species’ Alarm Calls Evoke a Predator-Specific Search Image in Birds. Current Biology. doi: 10.1016/ j.cub.2020.04.062. May 14, 2020.

https://www.sciencedirect.com/science/article/abs/pii/S0960982220305789

Also:

keyword 'bird' in FonT:

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

a special view:  

https://flashontrack.blogspot.com/2016/06/s-brain-question-is-humans-vs-parrots.html

# GST: the behavior of motile active self-propelling matter

<< From starling aberrations to self-turbulent fluids, 'active systems' encompass a wide family of phenomena in which individual objects propel themselves forward, allowing them to display intriguing collective behaviors. (..) these objects collectively spend most of their time in one of two states, between which some intriguing behaviors can emerge. (..) these collective behaviors are determined by the ability of the self-propelling objects to swim upwards against the gravitational force, and their degrees of bottom-heaviness. For lower values of these quantities, groups of swimmers will sink to the bottom of their container just like inactive dust grains; but higher values will instead collect at the top. In between these states, smaller clusters of swimmers group at the bottom, which are fed by plumes of sinking particles. Also, porous clusters of swimmers can form, which allow individual particles to escape. >>

'Bottom-heavy squirmers' adopt characteristic group behaviours. Springer. May 28, 2020.

https://phys.org/news/2020-05-bottom-heavy-squirmers-characteristic-group-behaviours.html 

Ruhle F., Stark H. Emergent collective dynamics of bottom-heavy squirmers under gravity. Eur. Phys. J. E 43, 26 (2020). doi: 10.1140/epje/ i2020-11949-8. May 25, 2020.

https://link.springer.com/article/10.1140/epje/i2020-11949-8  

# life: the landscape of a 'patchwork' pandemic (caused by 1or2 'achoo' from Wuhan)

<< There was supposed to be a peak. But the stark turning point, when the number of daily COVID-19 cases in the U.S. finally crested and began descending sharply, never happened. Instead, America spent much of April on a disquieting plateau, with every day bringing about 30,000 new cases and about 2,000 new deaths. The graphs were more mesa than Matterhorn—flat-topped, not sharp-peaked. >>

<< What’s happening is not one crisis, but many interconnected ones. As we shall see, it will be harder to come to terms with such a crisis. It will be harder to bring it to heel. And it will be harder to grapple with the historical legacies that have shaped today’s patchwork. >>

Ed Yong. America’s Patchwork Pandemic Is Fraying Even Further. The coronavirus is coursing through different parts of the U.S. in different ways, making the crisis harder to predict, control, or understand. May 20, 2020. 

https://www.theatlantic.com/health/archive/2020/05/patchwork-pandemic-states-reopening-inequalities/611866/

# behav: persistent neuronal firing during flight in flies, like a pulsating gambler who has to decide quickly

<< A general principle of sensory systems is that they adapt to prolonged stimulation by reducing their response over time. >>

<< as opposed to most sensory and visual neurons, and in particular to the motion vision sensitive neurons in the brains of both flies and mammals, the descending neurons show little adaption during stimulus motion. (..) the optic-flow-sensitive descending neurons display persistent firing, or an after-effect, following the cessation of visual stimulation, consistent with the lingering calcium signal hypothesis. >>

AA results << show a combination of adaptation and persistent firing in the neurons that project to the thoracic ganglia and thereby control behavioral output. >>

Sarah Nicholas, Karin Nordstrom. Persistent Firing and Adaptation in Optic-Flow-Sensitive Descending Neurons. Curr Biol. doi: 10.1016/ j.cub.2020.05.019. May 28, 2020.

https://www.cell.com/current-biology/fulltext/S0960-9822(20)30658-8

Revealing how flies make decisions on the fly to survive. Flinders University. May 28, 2020

https://phys.org/news/2020-05-revealing-flies-decisions-survive.html

Also

the flexible mental maps of flies. FonT. Nov 21, 2019. 

https://flashontrack.blogspot.com/2019/11/brain-flexible-mental-maps-of-flies.html

<< Considerando invece l' immagine classica della "mosca nella bottiglia", >>  in: 2066 - voli a casaccio. Notes. (quasi-stochastic poetry). Oct 01, 2006.

https://inkpi.blogspot.com/2006/10/2066-voli-casaccio.html

# life; aprops of 'extreme swing' (4) ... IT exists, IT doesn't; IT will return, IT will not;

<< "i tamponi eseguiti negli ultimi dieci giorni hanno una carica virale infinitesimale rispetto a quelli eseguiti su pazienti di un mese, due mesi fa". Il presidente del Consiglio Superiore di Sanità (..) esprime "sorpresa e sconcerto" >>

Per il primario del San Raffaele, il coronavirus "dal punto di vista clinico non esiste più". AGI. May 31, 2020 utd 21:03 

https://www.agi.it/cronaca/news/2020-05-31/coronavirus-non-esiste-piu-zangrillo-8780102/ 

Also

keyword 'extreme | swing' in FonT

https://flashontrack.blogspot.com/search?q=extreme|swing

keyword 'estremo | swing' in Notes (quasi- stochastic poetry)

https://inkpi.blogspot.com/search?q=estremo|swing

# gst: apropos of unexpected Hopfion tangles

<< a certain geometrical structure of knots, which scientists call a Hopfion, manifests itself in unexpected corners of the universe, ranging from particle physics, to biology, to cosmology. >>

<< In a recent theoretical study, (..) (AA) discovered the presence of the Hopfion structure in nano-sized particles of ferroelectrics. >>

<< The Hopfion is a very abstract mathematical concept, (..) but the structure shows up in hydrodynamics, electrodynamics and even in the packing of DNA and RNA molecules in biological systems and viruses. >> Valerii Vinokur

<< When we visualized the polarization, we saw the Hopfion structure emerge, (..) We thought, wow, there is a whole world inside of these nanoparticles. >> Igor Luk'yanchuck.

Savannah Mitchem. Novel insight reveals topological tangle in unexpected corner of the universe. Argonne National Laboratory. May 26, 2020.

https://phys.org/news/2020-05-insight-reveals-topological-tangle-unexpected.html

Luk’yanchuk I., Tikhonov Y., et al. Hopfions emerge in ferroelectrics. 

 Nat Commun 11, 2433. doi: 10.1038/ s41467-020-16258-w. May 15, 2020.

https://www.nature.com/articles/s41467-020-16258-w