# gst: when a 'ricequake' repeat perpetually and propagate

<< puffed rice and milk can serve as a stand-in to simulate collapsing ice shelves and rockfill dams. >>

<< Intrigued by their findings, the researchers created what they call a "crushing wave model," which they believe could prove useful for describing the behavior of much larger collapse events. >>

Bob Yirka. Using puffed rice to simulate collapsing ice shelves and rockfill dams. Oct 15, 2018.

https://m.phys.org/news/2018-10-puffed-rice-simulate-collapsing-ice.html

<< These "ricequakes" repeat perpetually during the experiments and propagate upward through the material. >>

Itai Einav, Francois Guillard. Tracking time with ricequakes in partially soaked brittle porous media. Science Advances  Oct 12, 2018. Vol. 4, no. 10, eaat6961. doi: 10.1126/sciadv.aat6961.

http://advances.sciencemag.org/content/4/10/eaat6961

# chem: it can self-repair by capturing carbon from the air

<< A material designed by MIT chemical engineers can react with carbon dioxide from the air, to grow, strengthen, and even repair itself. The polymer, which might someday be used as construction or repair material or for protective coatings, continuously converts the greenhouse gas into a carbon-based material that reinforces itself. >>

<< Materials science has never produced anything like this (..) These materials mimic some aspects of something living, even though it's not reproducing. >> Michael Strano

David L. Chandler. Self-healing material can build itself from carbon in the air. MIT. Oct 11, 2018.

https://m.phys.org/news/2018-10-self-healing-material-carbon-air.html 

Seon‐Yeong Kwak,  Juan Pablo Giraldo, et al. Polymethacrylamide and Carbon Composites that Grow, Strengthen, and Self‐Repair using Ambient Carbon Dioxide Fixation. Advanced Materials. Oct 9, 2018. doi: 10.1002/adma.201804037

https://onlinelibrary.wiley.com/doi/10.1002/adma.201804037

# soc-eu: Bavarian Greens could be the second party (18% by exit polls)

<< Now, multiple surveys show the Greens polling at 15-17 percent nationally, catching up with or even overtaking the SPD. >>

Zia Weise. The rise and rise of Bavaria’s Greens. Oct 12, 2018.

https://www.politico.eu/article/greens-bavaria-election-germany-the-rise-and-rise-of-bavarias-greens/

<< The Green wave: Glance casually at the election results in Bavaria, in Luxembourg, in Belgium’s communes, and you’ll find a Green wave engulfing the center-left of the political spectrum. Look a bit closer, and you’ll see the traditional political camps - the EPP and Social Democracy - fighting for survival. Mark this day in your calendars as a potential turning point for Europe. >>

Florian Eder. Brussels Playbook. Oct 15, 2018

https://www.politico.eu/newsletter/brussels-playbook/politico-brussels-playbook-presented-by-banco-santander-green-wave-bavarian-earthquake-brexit-crunch/

<< The polls said the Greens were making major gains to secure second place with up to 19 percent of the vote. >>

The Latest: Exit Polls: Top Party Losing Bavaria Majority.  The Associated Press. Oct 14, 2018

https://www.nytimes.com/aponline/2018/10/14/world/europe/ap-eu-germany-bavaria-election-the-latest.html

# evol: dry, chaotic environment in the transition to modern (nomadic) humans

<< A progressively drying climate punctuated by variable wetter episodes may have precipitated the transition from our hominin ancestors to anatomically modern humans >>

Dryer, less predictable environment may have spurred human evolution. University of Arizona. Oct 8, 2018.

https://m.phys.org/news/2018-10-dryer-environment-spurred-human-evolution.html

R. Bernhart Owen, Veronica M. Muiruri, et al. Progressive aridification in East Africa over the last half million years and implications for human evolution. PNAS Oct 8, 2018 doi: 10.1073/pnas.1801357115 

http://www.pnas.org/content/early/2018/10/03/1801357115

# age: the first of five big report (800-page) on longevity by academic and industry ventures

<< The longevity field is bustling but still fragmented, and the “silver tsunami” is coming. >>

<< That is the takeaway of The Science of Longevity, the behemoth first volume of a four-part series offering a bird’s-eye view of the longevity industry in 2017. The report, a joint production of the Biogerontology Research Foundation, Deep Knowledge Life Science, Aging Analytics Agency, and Longevity.International, synthesizes the growing array of academic and industry ventures related to aging, healthspan, and everything in between. >>

Shelly Fan. We Read This 800-Page Report on the State of Longevity Research So You Don’t Have To. Feb 14, 2018.

https://singularityhub.com/2018/02/14/we-read-this-800-page-report-on-longevity-research-so-you-dont-have-to/

Also

DrugAge Database of Anti-Ageing Drugs

http://genomics.senescence.info/drugs/

# gene: the generation of color pattern in ladybird beetle (H. axyridis aka harlequin ladybird).

<< Many ladybirds have attractive color patterns consisting of black and red. This prominent color pattern is thought to function as a warning that indicates to predators that they are very bitter and unpalatable. >>

AA << focused on the multicolored Asian ladybird beetle Harmonia axyridis (also known as the harlequin ladybird), which lives mainly in Siberia and East Asia, and shows >200 color patterns within a species. The team has identified a single gene that regulates such highly diverse ladybird color patterns. >>

A mechanism of color pattern formation in ladybird beetles. National Institutes of Natural Sciences, Japan. Sep 26, 2018.

https://m.phys.org/news/2018-09-mechanism-pattern-formation-ladybird-beetles.html

Toshiya Ando, Takeshi M Matsuda, et al. Repeated inversions within a pannier intron drive diversification of intraspecific colour patterns of ladybird beetles. Nature Communications 9, 3843. Sep 21, 2018.  doi: 10.1038/s41467-018-06116-1.

https://www.nature.com/articles/s41467-018-06116-1 

# gst: periodic oscillations of flexible knots

AA << study the dynamics of knotted deformable closed chains sedimenting in a viscous fluid. (..) trefoil and other torus knots often attain a remarkably regular horizontal toroidal structure while sedimenting, with a number of intertwined loops, oscillating periodically around each other. (..) this motion (..) is accompanied by a very slow rotation around the vertical symmetry axis. (..) this oscillating mode of the dynamics can spontaneously form even when starting from a qualitatively different initial configuration. (..) the oscillating modes are usually present as transients or final stages of the evolution, depending on chain aspect ratio and flexibility, and the number of loops. >>

Magdalena Gruziel, Krishnan Thyagarajan, et al. Periodic Motion of Sedimenting Flexible Knots. Phys. Rev. Lett. 121, 127801 Sep 18,  2018. doi: 10.1103/PhysRevLett.121.127801.

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.121.127801

The periodic motion of flexible knots, and the connection to DNA. University of Warsaw. Sep 26, 2018.

https://m.phys.org/news/2018-09-periodic-motion-flexible-dna.html