# tech: coloured walls and cities by nano pixels (also for immediate hack poetry)

<< Plasmonic metasurfaces are a promising route for flat panel display applications due to their full color gamut and high spatial resolution. >>

AA << present scalable electrically driven color-changing metasurfaces constructed using a bottom-up solution process that controls the crucial plasmonic gaps and fills them with an active medium. >>

<< ... which are a hundredfold thinner than current displays. >>

Jialong Peng, Hyeon-Ho Jeong, et al. Scalable electrochromic nanopixels using plasmonics. Science Advances   Vol. 5, no. 5, eaaw2205  doi: 10.1126/sciadv.aaw2205. May 10, 2019.

https://advances.sciencemag.org/content/5/5/eaaw2205

Smallest pixels ever created could light up color-changing buildings. University of Cambridge. May 10, 2019.

https://m.phys.org/news/2019-05-smallest-pixels-color-changing.html

FonT

2107 - coll' anse d' apostrofo. Jan 14, 2007

<< traccia coll' anse d' apostrofo un virtuosistico //
irriproducibile tagete // >>

https://inkpi.blogspot.com/2007/01/2107-coll-anse-d-apostrofo.html

# psych: exploring trust among politicians

<< The new research, (..) tested a vulnerability-centered definition of trust-meaning, defining trust as a willingness to be vulnerable to the actions of another. The results revealed three assessments that lead to one trusting in the government: whether it has the ability to do its job, the benevolence to care about its people and the integrity to generally do the right thing. >>

Do you trust politicians? Depends on how you define trust. Michigan State University. May 15, 2019

https://m.phys.org/news/2019-05-politicians.html

Joseph A. Hamm, Corwin Smidt, Roger C. Mayer. Understanding the psychological nature and mechanisms of political trust. PLoS ONE 14(5): e0215835. doi:10.1371/journal.pone.0215835.  May 15, 2019.

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0215835

# sec: adversarial audio attacks; small sound perturbations to hack a Machine Learning model and remedies

<< Adversarial audio attacks can be considered as a small perturbation unperceptive to human ears that is intentionally added to the audio signal and causes a machine learning model to make mistakes. >>

Mohammad Esmaeilpour, Patrick Cardinal, Alessandro Lameiras Koerich. A Robust Approach for Securing Audio Classification Against Adversarial Attacks. arXiv:1904.10990 [cs.LG] Apr 24, 2019.

https://arxiv.org/abs/1904.10990

Ingrid Fadelli. An approach for securing audio classification against adversarial attacks. May 7, 2019.

https://m.techxplore.com/news/2019-05-approach-audio-classification-adversarial.html

# math: squeezing Moebius strips using either 'tame' or 'wild' embeddings, but only with overlaps

<< In math, three-dimensional space sprawls out to infinity in every direction. With an infinite amount of room, it should be able to hold an infinite number of things inside of it - pearls, peacocks or even planets. >>

<< But a recent proof (..), shows that one relatively well-known mathematical object can’t be packed an uncountably infinite number of times into an infinite amount of space: the Möbius band, a two-dimensional loop with a half-twist. >>

<< "Tame" embeddings extend to the entire space, so it’s possible to stretch or squish the space to make the embedded sphere into a standard round sphere. >>

<< "Wild" embeddings, on the other hand, are not so easily visualized and generally require some infinite process to describe. With a wild embedding, there is no way to transform the space to make the wildly embedded version a round sphere. >>

Evelyn Lamb. Möbius Strips Defy a Link With Infinity. Feb 20, 2019.

https://www.quantamagazine.org/mobius-strips-defy-a-link-with-infinity-20190220

https://twitter.com/QuantaMagazine/status/1126601994494455809

Olga D. Frolkina. Pairwise disjoint Moebius bands in space. Journal of Knot Theory and Its Ramifications. Vol. 27, No. 09, 1842005 (2018). doi: 10.1142/S0218216518420051

https://www.worldscientific.com/doi/abs/10.1142/S0218216518420051

# brain eye: having colorful visions even in near darkness

<< some fish contained multiple rod opsins raising the possibility they have rod-based color vision. >>

Color vision found in fish that live in near darkness. University of Maryland. May 9, 2019.

https://m.phys.org/news/2019-05-remarkable-fish-deep-dark.html

Zuzana Musilova, Fabio Cortesi, et al. Vision using multiple distinct rod opsins in deep-sea fishes. Science. May 10, 2019 Vol. 364, Issue 6440, pp. 588-592 doi: 10.1126/science.aav4632

https://science.sciencemag.org/content/364/6440/588

# game gst: anomalous coexistence of cooperators and defectors and unexpected selection reversal in the hawk-dove game.

<< Evolution occurs in populations of reproducing individuals. Reproduction depends on the payoff a strategy receives. The payoff depends on the environment that may change over time, on intrinsic uncertainties, and on other sources of randomness. These temporal variations in the payoffs can affect which traits evolve. >>

AA << study the impact of arbitrary amplitudes and covariances of temporally varying payoffs on the dynamics. The evolutionary dynamics may be "unfair," meaning that, on average, two coexisting strategies may persistently receive different payoffs. This mechanism can induce an anomalous coexistence of cooperators and defectors in the prisoner’s dilemma, and an unexpected selection reversal in the hawk-dove game. >>

Frank Stollmeier, Jan Nagler. Unfair and Anomalous Evolutionary Dynamics from Fluctuating Payoffs. Phys. Rev. Lett. 120, 058101  Feb 1,  2018.

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.058101

# evol: an irrefutable evidence that they rose from the dead by an 'iterative evolution' process

<< the last surviving flightless species of bird, a type of rail, in the Indian Ocean had previously gone extinct but rose from the dead thanks to a rare process called 'iterative evolution'. >>

<< This is the first time that iterative evolution (the repeated evolution of similar or parallel structures from the same ancestor but at different times) has been seen in rails and one of the most significant in bird records. >>

The bird that came back from the dead. University of Portsmouth. May 9, 2019.

https://m.phys.org/news/2019-05-bird-dead.html

<< Fossil evidence presented here is unique for Rallidae and epitomizes the ability of birds from this clade to successfully colonize isolated islands and evolve flightlessness on multiple occasions. >>

Julian P Hume, David Martill. Repeated evolution of flightlessness in Dryolimnas rails (Aves: Rallidae) after extinction and recolonization on Aldabra. Zoological Journal of the Linnean Society, zlz018.  doi: 10.1093/zoolinnean/zlz018. May 8, 2019.

https://academic.oup.com/zoolinnean/advance-article-abstract/doi/10.1093/zoolinnean/zlz018/5487031