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lunedì 11 giugno 2018

# brain: understanding of zero even among honey bees

AA << trained individual honey bees to the numerical concepts of "greater than" or "less than" using stimuli containing one to six elemental features. Bees could subsequently extrapolate the concept of less than to order zero numerosity at the lower end of the numerical continuum. Bees demonstrated an understanding that parallels animals such as the African grey parrot, nonhuman primates, and even preschool children. >>

Scarlett R Howard, Aurore Avargues-Weber, et al. Numerical Ordering of Zero in Honey Bees. Science, 360 (6393), 1124-1126. 2018 Jun 8. doi: 10.1126/science.aar4975.

https://www.ncbi.nlm.nih.gov/labs/pubmed/29880690-numerical-ordering-of-zero-in-honey-bees/

FonT

questa news la devo a mia moglie Tamara, anche lei pulsatile nomade di labirinti ...

 

sabato 9 giugno 2018

# ai: open source AI projects

<< The Linux Foundation has published a free ebook by Ibrahim Haddad examining popular open source AI projects, including Acumos AI, Apache Spark, Caffe, TensorFlow, and others. >>

<< "It is increasingly common to see AI as open source projects,” Haddad said. And, “as with any technology where talent premiums are high, the network effects of open source are very strong.” >>

Amber Ankerholz. Free Ebook Offers Insight on 16 Open Source AI Projects. May 22, 2018.

https://www.linuxfoundation.org/blog/free-ebook-offers-insight-on-16-open-source-ai-projects/   

giovedì 7 giugno 2018

# drugs: the sweet side of a snake venom (B. jararaca)

AA << report on the sweet side of snake venom toxins >>

<< most proteins in lancehead venom are modified with glycans, which can affect the proteins' folding, stability and binding >>

<< Glycans containing sialic acid may help in venom solubility and increase toxin half-life >>

<< Sialic acid on a toxic enzyme may also bind to host proteins called siglecs [sialic acid-binding Ig superfamily  lectins], pulling the enzyme closer to target cells for greater effect >>

How just drops of viper venom pack a deadly punch. Am Soc for Biochem and Molec Biol. Jun 1, 2018.

https://m.phys.org/news/2018-06-viper-venom-deadly.html

Debora Andrade-Silva, David Ashline, et al. Structures of N-Glycans of Bothrops venoms revealed as molecular signatures that contribute to venom phenotype in viperid snakes. Molecular & Cellular Proteomics. doi: 10.1074/mcp.RA118.000748 mcp.RA118.000748. May 1, 2018.

http://m.mcponline.org/content/early/2018/04/30/mcp.RA118.000748

mercoledì 6 giugno 2018

# life: if your next interviewer will be a bot named Vera

<< You have a telephone interview for your dream job, and you're feeling nervous. You make yourself a cup of tea as you wait for the phone to ring, and you count to three before picking up. Now imagine that your interviewer is a robot named Vera. >>

Julie Jammot. Interview with a robot: AI revolution hits human resources. Apr 27, 2018.

https://m.phys.org/news/2018-04-robot-ai-revolution-human-resources.html

FonT

Intrigante un ipotetico AI bot in grado di modulare le interviste allo scopo di  calcolare "in tempo reale" parametri psicologici, di validita' e affidabilita' delle informazioni raccolte da ogni singolo intervistato, anche nell'ambito di sondaggi politici ...

lunedì 4 giugno 2018

# gst: deep, super-resolution vistas through tiny tornadoes of magnetized plasma

<< To get the extremely high-resolution images vital to study new materials, microbes, and more, scientists often build microscopes based on optical vortices. >>

AA << devised a way to make optical vortices with 1000 times more power than previous methods. Their design uses strong, nonuniform magnetic fields to control plasmas, or ionized gases, to create the vortices. >>

US Department of Energy. Magnetized plasmas that twist light can produce powerful microscopes and more. May 7, 2018.

https://m.phys.org/news/2018-05-magnetized-plasmas-powerful-microscopes.html

Kenan Qu, Qing Jia, Nathaniel J. Fisch. Plasma q-plate for generation and manipulation of intense optical vortices. Phys. Rev. E 96, 053207.  doi: 10.1103/PhysRevE.96.053207. Nov 28, 2017.

https://journals.aps.org/pre/abstract/10.1103/PhysRevE.96.053207

domenica 3 giugno 2018

# gst: Brownian motion from trading

<< The kinetic theory of molecules, involving many collisions between particles, leads to the emergence of physical Brownian motion. By generalizing the kinetic framework, the study showed the emergence of financial Brownian motion from decisions made by individual traders. >>

Tokyo Institute of Technology. The physics of finance helps solve a century-old mystery. Mar 29, 2018.

https://m.phys.org/news/2018-03-physics-century-old-mystery.html

AA << model is the first microscopic model that has been directly validated through data analysis of the microscopic dynamics, exhibiting quantitative agreements with mesoscopic and macroscopic empirical results. >>

Kiyoshi Kanazawa, Takumi Sueshige, et al.  Derivation of the Boltzmann Equation for Financial Brownian Motion: Direct Observation of the Collective Motion of High-Frequency Traders.   Phys. Rev. Lett. 120, 13830. doi: 10.1103/PhysRevLett.120.138301. Mar 27, 2018.

https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.138301

martedì 29 maggio 2018

# trade: cryptocoin; No hoax. The "McAfee Redemption Unit" is real ...

<< Late last night, John McAfee, the official mouthpiece of the 'We love making outlandish statements' club dropped a pretty big bomb on the unsuspecting crypto community.
It all started when a little known cryptocurrency exchange  SmartPayMINT posted a photo of fiat currency with McAfee’s face on it. As far as we know it was an artist’s representation of what a probable currency would look like if it had McAfee’s face on it. >>

Aheli Raychaudhuri. McAfee Coin: Elaborate Hoax or A Stroke of ‘Don Quixote’ Genius? May 29, 2018.

https://www.crypto-news.in/opinions/mcafee-coin-elaborate-hoax-stroke-don-quixote-genius/

<< No hoax. The "McAfee Redemption Unit" is real (..) Printed on currency paper, holographs on both sides, serialized, linked to the blockchain, redeemable, convertible, collectible. >>

John McAfee (@officialmcafee). May 29, 2018 02:46

https://twitter.com/officialmcafee/status/1001444693618589696