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Luís F. Simões

The Secret of Ant Transportation Networks - Technology Review - 2 views

  • Just how ants create the highly efficient network of trails around their nests has never been fully understood. Now researchers think they've cracked it
  • They say the structure of ant trails can be entirely explained if the ants's response to a pheromone droplet concentration is linear. "One ant will turn to the left in proportion to the difference between the pheromone it has on its left side and the pheromone on its right," say Perna and co. They also point out that this is exactly what Weber's law predicts.
  • Ref: arxiv.org/abs/1201.5827 :Individual Rules For Trail Pattern Formation In Argentine Ants (Linepithema Humile)
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    from the abstract: "Using a novel imaging and analysis technique on experimental data we estimated pheromone concentrations at all spatial positions in the experimental arena and at different times. Then we derived the response function of individual ants to pheromone concentrations by looking at correlations between concentrations and changes in speed or direction of the ants." [...] "agent based simulations based on the Weber's Law response function determined experimentally produced results compatible with those reported in the literature and reproduced the formation of trails."
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    Nice article!
ESA ACT

BibSonomy:: - 0 views

shared by ESA ACT on 24 Apr 09 - Cached
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    BibSonomy is a system for sharing bookmarks and lists of literature.
ESA ACT

CiteULike: A free online service to organise your academic papers - 0 views

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    Personal (or maybe group) relevant page to manage your literature. Currently I check it out - ask me later. Tobias
ESA ACT

SciBX: Science-Business eXchange - 0 views

shared by ESA ACT on 24 Apr 09 - Cached
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    is a groundbreaking weekly publication that provides a timely, concise, and understandable analysis of the scientific content and commercial potential of the most important translational research papers from across the life science literature.
Dario Izzo

Life Is Too Short to RTFM: How Users Relate to Documentation and Excess Features in Con... - 2 views

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    IgNobel 2018 for literature. Btw, I never ever RTFM .. :)
anonymous

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

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    "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
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    Lies, lies, all lies. They will never go away. Papers need to be published.
Alexander Wittig

Gene name errors are widespread in the scientific literature - 0 views

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    The spreadsheet software Microsoft Excel, when used with default settings, is known to convert gene names to dates and floating-point numbers. A programmatic scan of leading genomics journals reveals that approximately one-fifth of papers with supplementary Excel gene lists contain erroneous gene name conversions. The reason why you shouldn't use Excel (or Numbers or OpenOffice or ...) without knowing what it actually really does!
Ma Ru

Structured population genetic algorithms: a literature survey - 2 views

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    Might be a useful reference for PyGMO-related works.
Tom Gheysens

First animals oxygenated the ocean -- ScienceDaily - 0 views

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    Now this is an interesting hypothesis! Would make terraforming a bit easier 
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    Having an ocean on Mars would solve so many problems... btw, again this guy? Isabelle take a look at that : Tim Lenton is everywhere, last time he wrote half of our literature references on the tipping points study.
pacome delva

Radiation fears stalk stellar mission - 0 views

  • Concern over ESA's handling of the radiation issue caused Michael Perryman, former GAIA project scientist, to resign from the agency in 2008. But GAIA science-team member Lennart Lindegren, an astronomer at Lund Observatory in Sweden, is confident that GAIA's unprecedented accuracy will be feasible. GAIA researchers will continue to perform tests and calibrations until at least 2011, which will include irradiating the CCDs at space-like temperatures. Lindegren admits, however, that they can never be certain of success until the spacecraft is in orbit and starts sending back data.
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    metamaterials to stop radiations?
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    hmm ... in the optical range it is already a bit tricky .... lets brainstorm a bit about it ... anything in the literature? Luzi?
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    the components of the metamaterial need to have a size inversely proportional to the wavelenght, but here we are talking about high energy protons. So the idea was: is there metamaterials that change the electrical properties to solve this problem of holes in the material... but i dont have a clue !
pacome delva

How to walk through walls - 6 views

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    and yet another TO nonsense... And why always Harry Potter, dont't these darn scientists have more imagination or is their intellectual level just as low as being unable to read more complex literature than J.K. Rawling?? btw.: how about this skype session on TO, Leo?
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    Combine it with touchable holography (search for SIGGRAPH 2009 at youtube) and name it Holosuite 0.1.
Nina Nadine Ridder

Skeptical Science now an iPhone app - 2 views

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    iPhone app with scientific assessment of arguments used by global warming skeptics
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    very good idea! and it seems well done, the graphics are very clear and the literature abondant.
Christos Ampatzis

Academic publishers make Murdoch look like a socialist - 4 views

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    Who are the most ruthless capitalists in the western world? Whose monopolistic practices make Walmart look like a corner shop and Rupert Murdoch a socialist? You won't guess the answer in a month of Sundays. While there are plenty of candidates, my vote goes not to the banks, the oil companies or the health insurers, but - wait for it - to academic publishers.
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    fully agree ... "But an analysis by Deutsche Bank reaches different conclusions. "We believe the publisher adds relatively little value to the publishing process … if the process really were as complex, costly and value-added as the publishers protest that it is, 40% margins wouldn't be available." Far from assisting the dissemination of research, the big publishers impede it, as their long turnaround times can delay the release of findings by a year or more." very nice also: "Government bodies, with a few exceptions, have failed to confront them. The National Institutes of Health in the US oblige anyone taking their grants to put their papers in an open-access archive. But Research Councils UK, whose statement on public access is a masterpiece of meaningless waffle, relies on "the assumption that publishers will maintain the spirit of their current policies". You bet they will. In the short term, governments should refer the academic publishers to their competition watchdogs, and insist that all papers arising from publicly funded research are placed in a free public database. In the longer term, they should work with researchers to cut out the middleman altogether, creating - along the lines proposed by Björn Brembs of Berlin's Freie Universität - a single global archive of academic literature and data. Peer-review would be overseen by an independent body. It could be funded by the library budgets which are currently being diverted into the hands of privateers. The knowledge monopoly is as unwarranted and anachronistic as the corn laws. Let's throw off these parasitic overlords and liberate the research that belongs to us."
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    It is a really great article and the first time I read something in this direction. FULLY AGREE as well. Problem is I have not much encouraging to report from the Brussels region...
Marcus Maertens

Unsupervised word embeddings capture latent knowledge from materials science literature... - 1 views

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    New results in NLP might allow to automate scientific discoveries by data mining of papers. Work considers 3.3M abstracts from material science, physics and chemistry and claims to discover new materials before they are published later on.
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    ACT did that from diigo post digging in the retreat of 2014! Still without NLP.
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    That's cool! Didn't know.
koskons

A day at the zoo: exhaustive list of evolutionary, swarm and other metaphor-based algor... - 4 views

shared by koskons on 02 Jul 19 - No Cached
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    "A list of the many different animals, plants, microbes, natural phenomena and supernatural activities that can be spotted in the wild lands of the metaphor-based computation literature"
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