martedì 21 marzo 2017

# s-astro-esobio: fast radio bursts might be artificial in origin

AA << examine the possibility that fast radio bursts (FRBs) originate from the activity of extragalactic civilizations >>

Manasvi Lingam, Abraham Loeb. Fast Radio Bursts from Extragalactic Light Sails. The Astrophysical Journal Letters, Volume 837, Number 2. Publ. Mar. 8, 2017 doi 10.3847/2041-8213/aa633e

lunedì 20 marzo 2017

# e-os: a bootable (Linux, Debian) Live system on CD, DVD or USB flash drives

Klaus Knopper. Datenrettung und Forensik mit Knoppix. Open Source Forum @ CeBIT. 23 Mar. 2017

<< KNOPPIX is a bootable Live system on CD, DVD or USB flash drives, consisting of a representative collection of GNU/Linux software, automatic hardware detection, and support for many graphics cards, sound cards, SCSI and USB devices and other peripherals >>

sabato 18 marzo 2017

# s-ethnomed: ancient flexible eat; self-medication among Neanderthals with aspirin and penicillin like

<< Dental plaque preserved in fossilized teeth confirms that Neandertals were flexible eaters and may have self-medicated with an ancient equivalent of aspirin >>

<< Genetic material from poplar trees, which contain the pain-killing aspirin ingredient salicylic acid, and a plant mold that makes the antibiotic penicillin hint that he may have used natural medication to ease his aliments >>

Helen Thompson. Ancient dental plaque tells tales of Neandertal diet and disease. March 8, 2017

Laura S. Weyrich, Sebastian Duchene, et al. Neanderthal behaviour, diet, and disease inferred from ancient DNA in dental calculus. Nature (2017) doi:10.1038/nature21674.  March 08, 2017

lunedì 13 marzo 2017

# s-gst: breaking a kind of time- symmetry to draw stabilities

<< Time crystals are hypothetical structures that pulse without requiring any energy — like a ticking clock that never needs winding >>

<< In 2012, Wilczek [Frank Wilczek] [..] wondered why symmetry never broke spontaneously in time and whether it would be possible to create something in which it did >>

<< These systems draw stability from random interactions that would normally disrupt other kinds of matter >>

Elizabeth Gibney. The quest to crystallize time. Bizarre forms of matter called time crystals were supposed to be physically impossible. Now they’re not. Nature. Vol. 543, Pages: 164–166 164-166 09 March 2017 doi :10.1038/543164a

venerdì 10 marzo 2017

# e-web-sec: qucpu will make vital cryptography simple to crack

<< Quantum computers could bring about a quantum leap in processing power >>

<< But there's also a dark side: this extra power will make it simple to crack the encryption keeping everything from our emails to our online banking secure >>

<< A recent report from the Global Risk Institute predicted that there is a one in seven chance vital cryptography tools will be rendered useless by 2026, rising to a 50% chance by 2031 >>

<< As a report from the National Institute of Standards and Technology (NIST) released in April notes, this algorithm [to solve a problem called integer factorization] can be used to efficiently solve the mathematical problems at the heart of three of the most widely-used encryption approaches: Diffie-Hellman key exchange, RSA, and elliptic curve cryptography >>

Edd Gent. Quantum Computers Could CrushToday’s Top Encryption in 15 Years. Nov 24, 2016

Michele Mosca. A quantum of prevention for our cyber-security.

mercoledì 8 marzo 2017

# web-sec: recently, they lost control of the majority of they hacking tools ...

<< Recently, the CIA lost control of the majority of its hacking arsenal including malware, viruses, trojans, weaponized "zero day" exploits, malware remote control systems and associated documentation >>

Vault 7: CIA Hacking Tools Revealed. 7 Mar. 2017.



<< dalle viscosita' silenti d' inane baldacchino  ... >>

2151 - a voting machine (to explain precisely). Jan. 15, 2008.

martedì 7 marzo 2017

# s-age-behav: meditation vs physiology: the tide is tu(r)ning ...

<< a team led by a Nobel Prize-winning biochemist [Elizabeth H. Blackburn] is engaged in serious studies hinting that meditation might slow aging and lengthen life >>

<< “Ten years ago, if you'd told me that I would be seriously thinking about meditation, I would have said one of us is loco,” Blackburn told the New York Times in 2007 >>

<< The tide is now turning >>

Jo Marchant. Can Meditation Really Slow Aging? What the Latest Science Shows.


sabato 4 marzo 2017

# s-gst: when a destabilized soliton surprisingly generates a puff of sound waves ...

<< Solitons in the land of ultracold atoms are intriguing (..) because they are as close as you can get to observing the interface between quantum effects and the ordinary physics of everyday life >>

Joint  Quantum  Institute. Destabilized solitons perform a disappearing act. Feb. 27,  2017.

Lauren M. Aycock, Hilary M. Hurst et al. Brownian motion of solitons in a Bose–Einstein condensate. Proceedings of the National Academy of Sciences. Mar. 4,  2017. DOI: 10.1073/pnas.1615004114

giovedì 2 marzo 2017

# s-pharma: the alternative pack of the Conus regius, a small marine cone snail of the Caribbean Sea

<< Conus regius, a small marine cone snail common to the Caribbean Sea, packs a venomous punch, capable of paralyzing and killing its prey >>

<< a compound isolated from snail's venom, Rg1A, acts on a pain pathway distinct from that targeted by opioid drugs >>

Stacy  W.  Kish. An  alternative  to  opioids? Compound  from marine  snail  is  potent  pain  reliever.  Feb. 20,  2017

mercoledì 1 marzo 2017

# s-gene: epigenetic 'cis' and 'trans' memories

<< How epigenetic memory is stored and inherited is an on-going debate (..). In so-called  ‘cis  memory’, epigenetic information is proposed to be physically stored in local chromatin states that are associated, for example, with DNA methylation or histone modifications. By contrast, in  ‘trans  memory’, epigenetic information is stored in the concentration of a diffusible factor such as a transcriptional repressor. >>

Caroline Dean. What holds epigenetic memory? Nature Reviews Molecular Cell Biology Volume: 18, Page: 140 Year published: (2017) DOI: doi:10.1038/nrm.2017.15 Published online 21 February 2017