March 29, 2012

RESHARED POST FROM PSYCHOLOGY WORLD

We are going to crack this thing really soon. Hold on tight. Psychology World originally shared this post: The human brain’s connections turn out to be a an orderly 3D grid structure with no diagonals. 2D sheets of parallel fibers cross at right angles — ” like the warp and weft of a fabric.” The first pictures from the most powerful brain scanner of its kind reveal an “astonishingly simple architecture.” This diffusion spectrum image of a whole human brain came from the new Connectom scanner, part of the NIH’s Human Connectome Project.This video has NO audio.
March 29, 2012

RESHARED POST FROM BRUNO GONÇALVES

Bruno Gonçalves originally shared this post: Competition among memes in a world with limited attention : Scientific Reports : Nature Publishing Group Competition among memes in a world with limited attention : Scientific Reports : Nature Publishing Group The wide adoption of social media has increased the competition among ideas for our finite attention. We employ a parsimonious agent-based model to study whether such a competition may affect the popu…
March 29, 2012

RESHARED POST FROM KQED SCIENCE

KQED SCIENCE originally shared this post: Man and Machine “The International Space Station’s humanoid robot helper, Robonaut 2, reaches out to touch a gloved astronaut hand in a photo that pays tribute to Michelangelo’s Sistine ceiling painting.” Read more here: http://www.livescience.com/19335-robonaut-photo-michelangelo-sistine-chapel.html
March 29, 2012

APPARENTLY I SPENT ALL MORNING ARGUING WITH…

Apparently I spent all morning arguing with the GM of a $1+ billion international company about how capitalism is obsolete. Lol internet. I think I did a good enough job, when you take into account that I’m trying to be on my best behavior in G+. Either way, it is an interesting discussion that I’d like to save for future reference, so I’m linking it here. Any contributions you have, here or there, would be appreciated immensely. https://plus.google.com/u/0/115633934578783827271/posts/fzQHDwgtLSE Gregory Esau – Google+ – Say goodbye to Microsoft Sharepoint, GoTo Meeting & WebEx… Say goodbye to Microsoft Sharepoint, GoTo Meeting & WebEx — Google+ Hangout Apps Come Out Of Hiding — http://ow.ly/9XbtZ It’s interesting because…
March 29, 2012

RESHARED POST FROM JOHN KELLDEN

John Kellden originally shared this post: Frameworks, part 13: Social Proxy Babble “Babble (1997-2001) was a pioneering persistent chat system that used a visualization to show the presence and involvement of participants in a conversation; it was designed, implemented, deployed and studied over about four years.” The dynamics of sensemaking http://jcmc.indiana.edu/vol10/issue4/gasson.html “While many studies focus on cooperation in computer-mediated work groups, these studies often focus on the role of technology in supporting some unexplored construct of collaboration. This article attempts to flesh out that construct, by providing rich insights into how members of a group that spans various professional communities of practice collaborate in jointly constructing a socio-technical artifact—a knowledge management system—within its context of application.” Social Computing Group – Babble People and projects at IBM Research
March 29, 2012

RESHARED POST FROM DAVID BIKARD

David Bikard originally shared this post: http://www.wired.co.uk/magazine/archive/2012/05/ideas-bank/scientists-should-be-publishing-on-wikipedia Alex Bateman: Why scientists should be publishing on Wikipedia (Wired UK) If someone had told me ten years ago that there would be a single website that the public would visit for information about science and technology, I would have laughed at them
March 29, 2012

RESHARED POST FROM JEFF SAYRE

Jeff Sayre originally shared this post: What Small Eyes You Have! An team of researchers are working on building an in vivo mirco-robot that would scour the human body, searching out diseases and monitoring the health of its host. From the article: Cyberplasm will be designed to mimic key functions of the sea lamprey, a creature found mainly in the Atlantic Ocean. It is believed this approach will enable the micro-robot to be extremely sensitive and responsive to the environment it is put into. Future uses could include the ability to swim unobtrusively through the human body to detect a whole range of diseases. #SyntheticBiology #robotics #Cyberplasm #cybernetics #SynapticWeb ‘Living’ micro-robot could detect diseases in humans A tiny prototype robot that functions like a living creature is being developed which one day could be safely used to pinpoint diseases within the human body. Called ‘Cyberplasm’, it will combine adva…
March 28, 2012

THE STANDING OVATION PROBLEM “THE BASIC…

The Standing Ovation Problem “The basic SOP can be stated as: A brilliant economics lecture ends and the audience begins to applaud. The applause builds and tentatively, a few audience members may or may not decide to stand. Does a standing ovation ensue or does the enthusiasm fizzle? Inspired by the seminal work of Schelling (1978), the SOP possesses sucient structure to generate nontrivial dynamics without imposing too many a priori modeling constraints. Like Schelling’s work, it focuses on the macro-behavior that emerges from micro-motives, and relies on models that emphasize agents driven by simple behavioral algorithms placed in interesting spatial contexts. Though ostensibly simple, the social dynamics responsible for a standing ovation are complex. As the performance ends, each audience member must decide whether or not to stand. Of course, if the decision to stand is simply a personal choice based on the individual’s own assessment of the worth of the performance, the problem becomes trivial. However, people do not stand solely based upon their own impressions of the performance. A seated audience member surrounded by people standing might be enticed to stand, even if he hated the performance. This behavioral mimicry could be strategic (the agents wants to send the right signal to the lecturer), informational (maybe the lecture was better than he thought), or conformal (he stands so as to not feel awkward). Regardless of the source of these peer effects, they set the stage (so to speak) for interesting dynamic behavior.” Miller, John, and Scott E. Page (2004) Complexity, Vol. 9, No. 5, May/June http://www2.econ.iastate.edu/tesfatsi/StandingOvation.MillerPage.pdf http://www2.econ.iastate.edu/tesfatsi/StandingOvation.MillerPage.pdf
March 28, 2012

RESHARED POST FROM BETSY MCCALL

I wrote this in the comment of the original thread below. I have no idea if I’m right, but I thought I’m going to save it for posterity (vanity) anyway. For what it’s worth, nothing like this is mentioned in the linked article in Nature. __ If the biological analog of quantum theory is the theory of evolution, then the biological analog of the Higgs boson is the neural correlate of the meme. The theory of evolution is highly explanatory, and predicts a wide range of observed phenomena. It doesn’t give you a set of linear equations, but it does describe a set of complex dynamics that allows for a detailed study of the very mechanisms of life. Like the standard model, some of these mechanisms are well studied and understood. The biological equivalent of the electrons are the genes: the most familiar and well understood mechanisms predicted by the theory. At the moment, we understand electrons far better than we understand genes– that is, we can do more with them. But the last few decades have seen incredible advances in genetic engineering, and we are only becoming more confident in our grasp. The theory of evolution also has natural and obvious applications in the areas of psychology and sociology, but applying the theory in these areas is like walking through a minefield, and there are few places where we can do so with any confidence. The lack of confidence about the specifics, however, betrays a much deeper confidence in the generalities: the same biological models that explain the organization of other biological systems should likewise explain the organization of both brains and networks of brains. Both phenomena are pervasive biological phenomena, but we lack the mechanism, the “fundamental particle”, to unify their treatment with the genetic models we’ve been […]
March 28, 2012

RESHARED POST FROM PSYCHOLOGY WORLD

“He scalpels out little segments freehand, remarking: ‘That’s your fear and aggression centre …'” Psychology World originally shared this post: A human brain dissection – in pictures By Zoe Williams, +The Guardian Photo Credit: Graeme Robertson Observe the process, step by step, as professor Steve Gentleman dissects a brain at the Brain Bank. It may be difficult to look at, but the research done here helps scientists to learn more about little-understood and devastating conditions from Parkinson’s disease to Alzheimer’s and multiple sclerosis Source: http://goo.gl/QVijz
March 28, 2012

RESHARED POST FROM CIRO VILLA

Ciro Villa originally shared this post: …”The recently-launched Runmycode has thrown another bridge across these divides, a bridge that allows scientists and academics in the fields of economics and business to test the logic of an argument by testing the code that expresses it. A user can employ Runmycode for free to automatically create a website built around a given professional paper in between 15 and 45 minutes. The central feature of the resultant site is a cloud-based data simulator, developed in J2EE, that allows a user to test the paper’s assertions. This simulator allows readers, especially other scientists and those for whom the paper may prove the most useful, to test the arguments in the paper with their own data set.”… Runmycode lets scientists crowdsource code testing A new service removes a little more of the barrier between academics and the public by automatically producing a companion website for each paper researchers author. Creators hope it will invite criti…
March 28, 2012

RESHARED POST FROM JOHN BAEZ

John Baez originally shared this post: +Mike Stay pointed out Ron Eglash’s webpage on fractal themes in African architecture: http://homepages.rpi.edu/~eglash/eglash.dir/afractal/afarch.htm The most convincing example is an aerial photo of a Ba-ila village. Here’s a sketch based on that photo.
April 8, 2012

THE ATTENTION ECONOMY THE #ATTENTIONECONOMY…

The Attention Economy The #attentioneconomy is a unified model of social organization. In the previous post, I described some very general features of the attention economy, and hinted at your role in it. In this post, I will describe a simple thought experiment for thinking about how the attention economy might serve as a general organizational infrastructure. 10: The Marble Network Imagine that everyone straps a little box on their foreheads. These little boxes produce tiny invisible marbles at some rate, say: 10 marbles every second. While you are wearing the box, it shoots invisible marbles out at the objects you happen to be looking at. Those objects along with everything else in the environment are equipped with little devices that register and absorb the incoming marbles, so that all your marbles get absorbed by something. These marbles are a crude approximation of the attention you pay. Every time you pay attention to some object, it gets bombarded with the marbles shooting from your forehead. The idea seems silly because it is. I’d never suggest we actually fling high speed projectiles in arbitrary directions from boxes mounted on people’s foreheads, that would be dangerous and irresponsible. If this is to be implemented at all, it would of course be rendered digitally and transparently as best as our technology will allow. Moreover, the direction a person’s head is facing is a terrible indicator of where their attention is being paid; to do this precisely, we’d need something far more sophisticated. But leave these technical details aside for the moment. This is a toy model, and I’m describing it in some detail to help us think about what the attention economy is doing, and what we are doing in it. So boxes on foreheads with marbles shooting out with some frequency and […]
April 7, 2012

RESHARED POST FROM TYGER AC

h/t +Gideon Rosenblatt Tyger AC originally shared this post: Remember the good old days when everyone read really good books, like, maybe in the post-war years when everyone appreciated a good use of the semi-colon? Everyone’s favorite book was by Faulkner or Woolf or Roth. We were a civilized civilization. This was before the Internet and cable television, and so people had these, like, wholly different desires and attention spans. They just craved, craved, craved the erudition and cultivation of our literary kings and queens. All this to say: our collective memory of past is astoundingly inaccurate. Not only has the number of people reading not declined precipitously, it’s actually gone up since the perceived golden age of American letters. The Next Time Someone Says the Internet Killed Reading Books, Show Them This Chart Not only has the number of readers not declined since the golden age of American letters, it has gone up.
April 7, 2012

RESHARED POST FROM PSYCHOLOGY WORLD

Psychology World originally shared this post: Does the brain’s wiring make us who we are? Neuroscientists Sebastian Seung and Anothony Movshon debate minds, maps, and the future of their field.
April 7, 2012

RESHARED POST FROM NEUROVISUALIZATION

neurovisualization originally shared this post: this is a really interesting interview with prof. olaf sporn about computational neuroscience. also check out the other great podcasts at brainscience. NETWORKS OF THE BRAIN – OLAF SPORN Interview with Dr. Olaf Sporns, author of Networks of the Brain, which is a comprehensive introduction to the application of Network Theory to Neuroscience. Network Theory is an important tool for dealing with the massive amounts of data being generated by our current technology. We discuss basic concepts and also explore some of the interesting discoveries that are being generated by this approach.For detailed show notes, including links and episode transcripts go to http://brainsciencepodcast.com. h/t +Brain Science Podcast Home – Brain Science Podcast Brain Science Podcast show notes and blog
April 7, 2012

THIS IS AN IMPORTANT SOCIAL INNOVATION,…

This is an important social innovation, because, unlike classic non-profits or non-governmental institutions, they do not operate from the point of view of scarcity. Classic NGOs still operate much like other industrial institutions, such as the corporation and the market state, as they believe that resources need to marshalled and managed. By contrast, the new for-benefits have only an active role in enabling and empowering the community to co-operate – by provisioning its infrastructure, not by commanding its production processes. These associations exist for the sole purpose of benefitting the community of which they are the expression. This is good news, as they are generally managed in democratic ways. And they have to be, because an undemocratic institution would discourage contributions by the community of participants. Here is the kicker. What would you call an institution that is responsible for the common good of all the participants? I would argue that this type for for-benefit institution has a very similar function to what we commonly assign to the state. h/t +David Guthrie http://www.aljazeera.com/indepth/opinion/2012/03/20123111423139193.html The ‘welfare state’ is dead – long live the ‘partner state’? As the welfare state declines, what’s needed are democratically-run, civic institutions that protect the common good.
April 6, 2012

RESHARED POST FROM JOHN VERDON

John Verdon originally shared this post:
April 6, 2012

RESHARED POST FROM BRUNO GONÇALVES

Bruno Gonçalves originally shared this post: Complex systems: Spotlight on mobility Complex systems: Spotlight on mobility Nature 484, 7392 (2012). doi:10.1038/484040a Authors: Dirk Brockmann The complexity in patterns of human mobility, migration and communication has been difficult to unpack. Researchers have now come up with a simple theory that captures the intricacy of such phenomena. See Letter p.96
April 6, 2012

IN AMERICA WE HAVE A MOTIVATION PROBLEM :…

In America we have a motivation problem : money. I’m not a communist. I love capitalism (I even love money), but here’s a simple fact we’ve known since 1962: using money as a motivator makes us less capable at problem-solving. It actually makes us dumber. When your employees have to do something straightforward, like pressing a button or manning one stage in an assembly line, financial incentives work. It’s a small effect, but they do work. Simple jobs are like the simple candle problem. However, if your people must do something that requires any creative or critical thinking, financial incentives hurt. The In-Box Candle Problem is the stereotypical problem that requires you to think “Out of the Box,” (you knew that was coming, didn’t you?). Whenever people must think out of the box, offering them a monetary carrot will keep them in that box. A monetary reward will help your employees focus. That’s the point. ^When you’re focused you are less able to think laterally. You become dumber*. This is not the kind of thing we want if we expect to solve the problems that face us in the 21st century. Is your job like that of a button pusher? or do you have to think creatively? What about a CEO? The results above apply more to a CEO than almost anybody, yet CEOs receive greater financial incentives than anyone. This practice is self-destructive. Now I understand why the CEO of Company X killed his golden goose. I understand why he decimated R&D. I understand why he upped the number of spurious lawsuits against competitors instead of investing in long term growth. He was incentivized. He was focused. The stock price was the most important metric of judgment. The same is true for many other companies. http://blogs.nature.com/a_mad_hemorrhage/2012/04/02/ceos-and-the-candle-problem CEOs and the […]
April 6, 2012

RESHARED POST FROM GERD MOE-BEHRENS

Gerd Moe-Behrens originally shared this post: Leukippos Institute Evolutionary Synthetic Biology by Sergio G. Peisajovich “Signaling networks process vast amounts of environmental information to generate specific cellular responses. As cellular environments change, signaling networks adapt accordingly. Here, I will discuss how the integration of synthetic biology and directed evolution approaches is shedding light on the molecular mechanisms that guide the evolution of signaling networks. In particular, I will review studies that demonstrate how different types of mutations, from the replacement of individual amino acids to the shuffling of modular domains, lead to markedly different evolutionary trajectories, and consequently to diverse network rewiring. Moreover, I will argue that intrinsic evolutionary properties of signaling proteins, such as the robustness of wild type functions, the promiscuous nature of evolutionary intermediates, and the modular decoupling between binding and catalysis, play important roles in the evolution of signaling networks. Finally, I will argue that rapid advances in our ability to synthesize DNA will radically alter how we study signaling network evolution at the genome-wide level.” http://bit.ly/Hd65fd #syntheticbiology #synbio #syntheticbio Evolutionary Synthetic Biology – ACS Synthetic Biology (ACS Publications) Signaling networks process vast amounts of environmental information to generate specific cellular responses. As cellular environments change, signaling networks adapt accordingly. Here, I will discus…
April 5, 2012

RESHARED POST FROM MATT UEBEL

Matt Uebel originally shared this post: #RaceAgainstTheMachine . Robots will steal your job, but that’s OK | how to survive the economic collapse and be happy You are about to become obsolete. You think you are special, unique, and that whatever it is that you are doing is impossible to replace. You are wrong. As we speak, millions of algorithms created by …
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