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annaheffernan

Charging up with jumping droplets - 3 views

physicsworld.com/...rging-up-with-jumping-droplets

shared by annaheffernan on 21 Jul 14 - No Cached
  • annaheffernan on 21 Jul 14
     
    Energy harvesting device taps into atmospheric humidity - basically by exploiting the behaviour of water droplets when they come in contact with a superhydrophobic surfaces. Could it be exploited for other atmospheres?
Luís F. Simões

Inferring individual rules from collective behavior - 2 views

dx.doi.org/...pnas.1001763107

bio swarm biomimicry self-organization

shared by Luís F. Simões on 05 Sep 10 - No Cached
  • Luís F. Simões on 05 Sep 10
     
    "We fit data to zonal interaction models and characterize which individual interaction forces suffice to explain observed spatial patterns." You can get the paper from the first author's website: http://people.stfx.ca/rlukeman/research.htm
  • Christos Ampatzis on 06 Sep 10
     
    PNAS? Didnt strike me as sth very new though... We should refer to it in the roots study though: "Social organisms form striking aggregation patterns, displaying cohesion, polarization, and collective intelligence. Determining how they do so in nature is challenging; a plethora of simulation studies displaying life-like swarm behavior lack rigorous comparison with actual data because collecting field data of sufficient quality has been a bottleneck." For roots it is NO bottleneck :) Tobias was right :)
  • Luís F. Simões on 06 Sep 10
     
    Here they assume all relevant variables influencing behaviour are being observed. Namely, the relative positions and orientations of all ducks in the swarm. So, they make movies of the swarm's movements, process them, and them fit the models to that data. In the roots, though we can observe the complete final structure, or even obtain time-lapse movies showing how that structure came out to be, getting the measurements of all relevant soil variables (nitrogen, phosphorus, ...) throughout the soil, and over time, would be extremely difficult. So I guess a replication of the kind of work they did, but for the roots, would be hard. Nice reference though.
LeopoldS

Self-organized adaptation of a simple neural circuit enables complex robot behaviour : ... - 3 views

www.nature.com/...nphys1508.html

robotics

shared by LeopoldS on 19 Jan 10 - Cached
  • LeopoldS on 19 Jan 10
     
    is this really worth a nature paper??
  • Luzi Bergamin on 19 Jan 10
     
    Funny to read this question exactly from you, the all and ever fan of anything linked to bio :-) I have read worse papers in nature and in addition it's just "Nature physics", viz. "Nature garbage." Could be that they don't find enough really good stuff to publish in all their topical clones of Nature.
  • Nicholas Lan on 19 Jan 10
     
    francesco already posted this below
LeopoldS

Why Humans Have Sex | The New York Academy of Sciences - 4 views

www.nyas.org/...PodcastDetail.aspx

behaviour psychology

shared by LeopoldS on 04 May 10 - Cached
  • LeopoldS on 04 May 10
     
    nice podcast ... ESTEC YGT community might be an interesting study pool ....
  • Juxi Leitner on 06 May 10
     
    haha ;) I dunno what the general idea of the YGTs here at ESTEC is ;)
pacome delva

Physicists study how moral behaviour evolved - 2 views

physicsworld.com/...42540

phy ia cooperation

shared by pacome delva on 07 May 10 - Cached
  • A statistical-physics-based model may shed light on the age-old question "how can morality take root in a world where everyone is out for themselves?" Computer simulations by an international team of scientists suggest that the answer lies in how people interact with their closest neighbours rather than with the population as a whole.
  • pacome delva on 07 May 10
     
    Reminds me something... :)
  • nikolas smyrlakis on 07 May 10
     
    I check diigo for the first time since I left and my spirit is still there yeah !
Luzi Bergamin

Prof. Markrams Hirnmaschine (Startseite, NZZ Online) - 2 views

www.nzz.ch/...s_hirnmaschine_1.10736223.html

AI neuroscience SciFi

shared by Luzi Bergamin on 29 May 11 - No Cached
  • Luzi Bergamin on 29 May 11
     
    A critical view on Prof. Markram's Blue Brain project (in German).
  • ...4 more comments...
  • Luzi Bergamin on 29 May 11
     
    A critical view on Prof. Markram's Blue Brain project (in German).
  • LeopoldS on 30 May 11
     
    so critical that the comment needed to be posted twice :-) ?
  • Luzi Bergamin on 30 May 11
     
    Yes, I know; I still don't know how to deal with this f.... Diigo Toolbar! Shame on me!!!
  • dejanpetkow on 30 May 11
     
    Would be nice to read something about the modelling, but it appears that there is nothing published in detail. Following the article, the main approach is to model each(!) neuron taking into account the spatial structure of the neurons positions. Once achieved they expect intelligent behaviour. And they need a (type of) supercomputer which does not exist yet.
  • Ma Ru on 31 May 11
     
    As far as I know it's sort of like "Let's construct an enormous dynamical system and see what happens"... i.e. a waste of taxpayer's money... Able to heal Alzheimer... Yeah... Actually I was on the conference the author is mentioning (FET 2011) and I have seen the presentations of all 6 flagship proposals. Following that I had a discussion with one of my colleagues about the existence of limits of the amount of bullshit politicians are willing to buy from scientists. Will there be a point at which politicians, despite their total ignorance, will realise that scientists simply don't deliver anything they promise? How long will we (scientists) be stuck in the viscous circle of have-to-promise-more-than-predecessors in order to get money? Will we face a situation when we'll be forced to revert to promises which are realistic? To be honest none of the 6 presentations convinced me of their scientific merit (apart from the one on graphene where I have absolutely no expertise to tell). Apparently a huge amount of money is about to be wasted.
  • Luzi Bergamin on 01 Jun 11
     
    It's not just "Let's construct an enormous dynamical system and see what happens", it's worse! Also the simulation of the cosmological evolution is/was a little bit of this type, still the results are very interesting and useful. Why? Neither the whole cosmos nor the human brain at the level of single neurons can be modelled on a computer, that would last aeons on a "yet-to-be-invented-extra-super-computer". Thus one has to make assumptions and simplifications. In cosmology we have working theories of gravitation, thermodynamics, electrodynamics etc. at hand; starting from these theories we can make reasonable assumptions and (more or less) justified simplifications. The result is valuable since it provides insight into a complex system under given, explicit and understood assumptions. Nothing similar seems to exist in neuroscience. There is no theory of the human brain and apparently nobody has the slightest idea which simplifications can be made without harm. Of course, Mr. Markram remains completely unaffected of ''details'' like this. Finally, Marek, money is not wasted, we ''build networks of excellence'' and ''select the brightest of the brightest'' to make them study and work at our ''elite institutions'' :-). I lively remember the stage of one of these "bestofthebest" from Ivy League at the ACT...
Marion Nachon

Smartphone-Controlled Robots Aid Astronauts | NASA SPHERES Droids - 0 views

www.innovationnewsdaily.com/pheres-droids-smartphones-2131

technology space

shared by Marion Nachon on 27 Jul 11 - No Cached
  • Marion Nachon on 27 Jul 11
     
    "The MIT-built robots will each connect with a Nexus S smartphone - the first commercial smartphone certified by NASA for use on the space shuttle and space station."
  • Marion Nachon on 27 Jul 11
     
    First smartphones control our lives, now they control robots behaviour. Watch out! After all, there must be a good reason for calling it smartphone...
Christos Ampatzis

Elucidating the cooperative behaviour of sensory nerves - 1 views

cordis.europa.eu/fetch

diigo

shared by Christos Ampatzis on 20 Oct 09 - Cached
  • Christos Ampatzis on 20 Oct 09
     
    From research*eu magazine
Joris _

DailyTech - NASA Releases iPhone App - 2 views

www.dailytech.com/...article16613.htm

shared by Joris _ on 26 Oct 09 - Cached
  • The U.S. space agency has worked more diligently the past few years to better interact with the public.
  • Joris _ on 26 Oct 09
     
    what about ESA?
  • ...3 more comments...
  • LeopoldS on 26 Oct 09
     
    have already sent it as a suggestion to our com department ... btw: installed the app and its really well done!!
  • Francesco Biscani on 27 Oct 09
     
    God no, why give more taxpayers' money to the shittiest, greediest and most closed company out there??
  • LeopoldS on 27 Oct 09
     
    why "more" ... do they get any taxpayers money? answer to your question: because its the most efficient (and coolest) platform to convey your message to a larger audience with relatively little effort ... btw: just ordered a time capsule for home :-)
  • Francesco Biscani on 27 Oct 09
     
    I said "more" because we already gave them money in the form of Sophia and Atlas :) If we want to be consistent in promoting "open" efforts (open innovation, open source, open governance, etc.) we should avoid Apple like the plague. They are far far worse than Microsoft in terms of closedness, secrecy, shady market practices and vendor lock-in. Just google a bit and you will find lots of example of their behaviour.
  • nikolas smyrlakis on 28 Oct 09
     
    cant' really argue about the Apple practices, although I ve read some things. I think the NASA app is more like a news feed and nothing more. But that online crowdsourcing game we had in mind, now that would be cool in a mobile version - new mobiles also have accelerometers nowadays
LeopoldS

Leadership, consensus decision making and collective behaviour in humans - Philosophi... - 0 views

rstb.royalsocietypublishing.org/...781.abstract

swarms psychology

shared by LeopoldS on 06 Sep 09 - Cached
  • LeopoldS on 06 Sep 09
     
    seems that we behave like fish ... :-)
Christos Ampatzis

What it takes to be a team player - 2 views

physics.aps.org/...PhysRevE.79.066117

diigo

shared by Christos Ampatzis on 18 Sep 09 - Cached
  • Christos Ampatzis on 23 Oct 09
     
    PD's article presented to the idea storm: "They find the data can best be explained using a model that says an individual can join a team if she/he can bring some new, complementary skills to the group. This interpretation goes against the idea that an individual will tend to mainly join-and remain comfortable in-groups of "like-minded" people."
  • LeopoldS on 25 Oct 09
     
    nice article according to the abstract but can't download the paper (can we from within ESA? do you have it already downloaded - would be interested in reading the full paper - can we apply this to behaviour and size of the ACT?
  • Christos Ampatzis on 26 Oct 09
     
    Yes it is available within ESA's network - I have it anyway
Joris _

The Origin of Artificial Species: Creating Artificial Personalities - 0 views

www.physorg.com/news161517506.html

ai behaviour robots

shared by Joris _ on 15 May 09 - Cached
  • The first artificial creature to receive the genomic personality is Rity, a dog-like software character that lives in a virtual 3D world in a PC
  • In Rity, internal states such as motivation, homeostasis and emotion change according to the incoming perception
  • The internal control architecture processes incoming sensor information, calculates each value of internal states as its response, and sends the calculated values to the behavior selection module to generate a proper behavior.
  • Joris _ on 15 May 09
     
    they have found Christina's dog !!
Ma Ru

Euroscience Open Forum 2010 - 2 views

www.esof2010.org

science conference Europe

shared by Ma Ru on 24 Apr 09 - Cached
LeopoldS liked it
  • ESA ACT on 24 Apr 09
     
    A conference ACT should consider going to.
  • ...4 more comments...
  • Ma Ru on 23 Apr 10
     
    Perhaps some of ACTers will find this conference interesting... One of the talks: "Would Einstein be on Twitter? Exploring the potential and limits of Web 2.0 in science & science communication" [Edit] Oh, I see someone has already posted this link... a year ago. Anyway, if anyone of you plans to go, let me know - I'll be around ;-)
  • Ma Ru on 08 Jul 10
     
    Just came back from ESOF 2010... I was on look for ACT agents undercover, but either they were not there or the cover was good enough... Anyway here's a few remarks from me (I could write a nice report... if you paid): 1) In general, to say that ESA was underrepresented on the conference as a whole is not enough (I guess ESA just failed to notice the event taking place). For instance, on the GMES presentation, ESA as such was not mentioned at all... at some point I started to wonder if ESA is actually involved in the project, but now I checked the website and apparently it is. On the other hand, GMES presentation was crap anyway, as after 1:15 of talking, I didn't gain any knowledge of what GMES is and what its contributions to the EU community will be. 2) There was a lot of talk about LHC and particle research (well, at least among those that I attended). Some of them were very good, some of them rather crap... 3) "Would Einstein be on Twitter? Exploring the potential and limits of Web 2.0 in science & science communication" talk - quite interesting, but focusing mainly on Science-to-Wide Public and Science-to-Journalists communication. Not really on Science-to-Science (as in Ariadnet). There was quite an extensive discussion with the public. You may be interested that Nature is trying to stimulate Web 2.0 communication, running blog service, but also I think a kind of social network - perhaps you'd like to have a look. In general the conclusion was that Web 2.0 is not so useful for scientific communication because practising it requires TIME (blogs, etc.) and often some professional skills (podcasts/videocasts, etc.), and scientists have neither of these. This can be run on corporation level (like ESA does actually), but then it looses the "intimate" character. 4) "How much can robots learn?" talk... very nicely presented: understandable by the wide public, but conveying the message... which is something like "we can already make the robots do stuff absolutely imp
  • Ma Ru on 08 Jul 10
     
    Well, my comment was cut in half, and I don't feel like typing it again... the most important highlight from the rest is that the only presenter from ESA (ESTEC) did not show up on his talk because his department was undergoing some sort of audit on the same day :)
  • LeopoldS on 08 Jul 10
     
    Fantastic comment - or better report!! thanks very much Marek! Who was the supposed no-show speaker from ESA?
  • Ma Ru on 08 Jul 10
     
    Bernard Foing (he is actually one of the 8 ESA employees who have their own page on Wikipedia)...
  • LeopoldS on 08 Jul 10
     
    written almost entirely by a guy called a "quest for knowledge" ... who will this be????? :-)
LeopoldS

Extraneous factors in judicial decisions - 1 views

www.pnas.org/...1018033108.short

social behaviour

shared by LeopoldS on 18 Apr 11 - No Cached
  • LeopoldS on 18 Apr 11
     
    astonishing! whenever you go to a judge, make sure that he has a full belly ... I am sure we can apply this things also for other situations: exams etc
anonymous

Scientists Are Turning Their Backs on Algorithms Inspired By Nature - 5 views

gizmodo.com/n-algorithms-inspir-1708656813

AI inf

shared by anonymous on 03 Jun 15 - No Cached
  • anonymous on 03 Jun 15
     
    "Over the past couple of decades, the research literature has filled up with endless new nature-based metaphors for algorithms. You can find algorithms based on the behaviour of cuckoos, bees, bats, cats, wolves, galaxy formation and black holes. (...) All researchers have been doing is wasting time on developing new approaches that are probably little better than existing ones. And the language of each metaphor then invades the literature, distracting people from using the already sufficiently expressive terminology of mathematics and, above all, working together to find the best way forward." The golden era of fireworks-like algorithm is about to end
  • Paul N on 05 Jun 15
     
    Lies, lies, all lies. They will never go away. Papers need to be published.
jaihobah

Emergence of Locomotion Behaviours in Rich Environments - 1 views

arxiv.org/1707.02286

AI

shared by jaihobah on 11 Jul 17 - No Cached
jcunha liked it
  • jaihobah on 11 Jul 17
     
    Some work by DeepMind on applying reinforcement learning to teach a computer to navigate complex environments. Come for the science - stay for the video: https://goo.gl/8rTx2F
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