# phys: a holographic image of a black hole

<< by applying a magnetic field to a small, irregularly shaped graphene flake, the flake becomes a quantum hologram of a black hole. This means that the graphene flake recreates the spatial structure and characteristic properties of a black hole, but in a much smaller, lower-dimensional system. >>

<< The type of holographic duality illustrated by the SYK [Sachdev-Ye-Kitaev] model is particularly interesting because it exhibits some of the signature properties of black holes, such as non-zero residual entropy and quantum chaos propagation. >>

Lisa Zyga. Holographic image of a black hole proposed in a graphene flake. Phys.org. July 25, 2018.

https://m.phys.org/news/2018-07-holographic-image-black-hole-graphene.html

Anffany Chen, R. Ilan, F. de Juan, D. I. Pikulin, and M. Franz. Quantum Holography in a Graphene Flake with an Irregular Boundary. Phys. Rev. Lett. 121, 036403. July 18,  2018

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.036403

https://arxiv.org/abs/1802.00802 

# acad: when the academy pays the worst better

<< The vice-chancellors of some of the country’s worst performing universities are among the highest paid, a study has found. >>

<< In contrast, many of the heads of institutions with higher league table rankings are paid less. >>

Claire Duffin. How worst universities give their chiefs bumper salaries. Daily Mail. Jan 1, 2018.

https://www.pressreader.com/uk/daily-mail/20180101/281840054047672

Also

Susan Adams. The Highest-Paid CEOs Are The Worst Performers, New Study Says. Jun 16, 2014.

https://www.forbes.com/sites/susanadams/2014/06/16/the-highest-paid-ceos-are-the-worst-performers-new-study-says/#51fcef407e32

FonT

questa news la devo a mia moglie Tamara, anche lei curiosa e tenace  nomade di labirinti ...

# trade: job career quick transitions, from Silicon Valley to the Cannabis Marketplace

<< For decades, those looking to change the world arrived in Silicon Valley seeking the latest frontier: social media companies, gadget makers, delivery and transportation apps, e-commerce platforms. >>

<< But as the emerging markets of yesterday become today's stalwarts, a growing number of technology workers are migrating to an even newer sector-so new that it isn't legal at the federal level. >>

<<  The U.S. cannabis market is expected to grow to $75 billion in sales by 2030 from $10 billion, said Troy Dayton, chief executive of cannabis investment and market research firm Arcview. >>

<< Eaze, which aspires to be something of an Amazon for pot, has raised more than $50 million from tech investors such as DCM and Fresh VC. PAX Labs, whose cannabis vaporizers resemble Apple gadgets, has raised more than $100 million from Silicon Valley and institutional investors. And Baker Technologies, which is essentially a Salesforce for dispensaries, made it into 500 Startups' prestigious accelerator program in 2015. >>

Tracey Lien. They worked at Apple, Amazon and Lyft. Now they're working to get you stoned.  Los Angeles Times. July 17, 2018.

https://m.phys.org/news/2018-07-apple-amazon-lyft-theyre-stoned.html

FonT

quando uno scientist di talento (anche  fortunato) oppure una pulsiva AI oppure entrambi disegneranno la/una "magica stringa" fisiologica, priva di effetti collaterali di rilievo, anche questi lucrosi mercati a iniziativa piu' o meno individuale evaporeranno, io penso ...

"magic string" in:
https://flashontrack.blogspot.com/2018/07/pharma-ethno-drug-revisited-ayahuasca.html

# behav: social isolation vs. evolutionary dynamics

<< For some animals—such as beetles, ants, toads, and primates—short-term social isolation can be just as vital as social interaction to development and long-term evolution. In a review published July 17 in the journal Trends in Ecology & Evolution, two evolutionary biologists describe approaches for testing how an animal's isolation might impact natural selection and evolution. >>

Social isolation: Animals that break away from the pack can influence evolution. Cell Press. Jul 17, 2018.

https://m.phys.org/news/2018-07-social-isolation-animals-evolution.html

AA << suggest that the 'index of social isolation', the mismatch between actual and optimal social interaction experienced by individuals within a population, may play a key role in releasing cryptic genetic variation, adaptation rates, diversification patterns, and ecosystem-level processes. Evolutionary dynamics arising from social isolation could have significant impacts in applied settings such as conservation, animal breeding, control of biological invasions, and evolutionary resilience to anthropogenic change. >>

Nathan W. Bailey, Allen J. Moore.  Evolutionary Consequences of Social Isolation. Trends in Ecology & Evolution. doi: 10.1016/j.tree.2018.05.008. Jul 17, 2018.

https://www.cell.com/trends/ecology-evolution/abstract/S0169-5347(18)30120-4

# acad: oops! when a big research (MACH15 clinical study, funded by several million dollars) can go wrong

<< The National Institutes of Health plans to end funding to the Moderate Alcohol and Cardiovascular Health (MACH) trial. The decision is based on concerns about the study design that cast doubt on its ultimate credibility.  >>

NIH to end funding for Moderate Alcohol and Cardiovascular Health trial. Jun 15, 2018.

https://www.nih.gov/news-events/news-releases/nih-end-funding-moderate-alcohol-cardiovascular-health-trial   

<< last month, the National Institutes of Health took the unusual step of shutting down one of its own clinical trials - a $100 million dollar experiment gone wrong. The announcement followed an internal investigation, prompted by a dogged New York Times report, that uncovered inappropriate interactions between the alcohol industry (Anheuser-Busch InBev, Heineken, and others) and the NIAAA in the execution of MACH15. >>

Jeremy Samuel Faust. A Major Industry-Funded Alcohol Study Was Compromised. How Many Others Are Out There?  The most salient takeaway from the collapse of the MACH15 trial is that the conflicts of interest at its core are probably not as rare as we think. Jul 13, 2018

https://undark.org/article/mach15-alcohol-nih-industry-funding

# astro: after Florence, the binary nature of the near-Earth asteroid 2017 YE5, as dark as charcoal.

<< Near-Earth asteroid 2017 YE5 was discovered with observations provided by the Morocco Oukaimeden Sky Survey on Dec. 21, 2017. >>

<< On June 24 (..) they were able to confirm that 2017 YE5 consists of two separated objects. By June 26, both Goldstone and Arecibo had independently confirmed the asteroid's binary nature. >>

<< At its closest approach to Earth, the asteroid came to within 16 times the distance between Earth and the moon. >>

<< 2017 YE5 is likely as dark as charcoal. >>

Calla Cofield. Observatories team up to reveal rare double asteroid. Jet Propulsion Laboratory. Jul 13, 2018.

https://m.phys.org/news/2018-07-observatories-team-reveal-rare-asteroid.html  

Also

<< Asteroid Florence, a large near-Earth asteroid, will pass safely by Earth on Sept. 1, 2017, at a distance of about 4.4 million miles, (7.0 million kilometers, or about 18 Earth-Moon distances). Florence is among the largest near-Earth asteroids that are several miles is size; measurements from NASA's Spitzer Space Telescope and NEOWISE mission indicate it's about 2.7 miles (4.4 kilometers) in size. >>

Large asteroid to safely pass Earth on September 1. NASA. Aug 18, 2017.

https://m.phys.org/news/2017-08-large-asteroid-safely-earth-september.html

# gst: the 'memory' of a friction

<< Contrary to what you may have learned in high school, friction between two surfaces is not constant. For a wide range of materials and surface types, it increases with time, as microscopically uneven surfaces deform and come into closer contact. Experiments now find an additional wrinkle: friction can have a memory, meaning that it can depend not only on the current state of the interface but also on how it got there. The findings hint at connections between friction and the behavior of glasses and other disordered systems and, in the long run, may influence how scientists think about friction associated with earthquakes, industrial machinery, and micromachines. >>

David Lindley. Focus: Friction Remembers Its Origins. Physics 11, 55. Jun 1, 2018

https://physics.aps.org/articles/v11/55