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  • May 30, 2013
  • 10:11 AM

Atom-trapping laser gratings : A technological quantum leap for space

by Perikis Livas in Chilon

New micro-fabricated grating chips developed through ESA-led research enable the laser-based cooling and capture of atoms on a more compact basis than ever before, potentially delivering laboratory-standard performance for precision environmental sensing and timekeeping from devices portable enough to be flown into space.... Read more »

ESA Space Engineering. (2013) Atom-trapping laser gratings : A technological quantum leap for space. ESA. info:/

  • May 29, 2013
  • 11:30 PM

Microscopic computing in cells and with self-assembling DNA tiles

by Artem Kaznatcheev in Evolutionary Games Group

One of the three goals of natural algorithms is to implement computers in non-electronic media. In cases like quantum computing, the goal is to achieve a qualitatively different form of computing, but other times (as with most biological computing) the goal is just to recreate normal computation (or a subset of it) at a different […]... Read more »

Cardelli L, & Csikász-Nagy A. (2012) The cell cycle switch computes approximate majority. Scientific Reports, 656. PMID: 22977731  

  • May 29, 2013
  • 12:41 PM

New Catalysts Will Get Cellphones Running on Acid

by dailyfusion in The Daily Fusion

Physicist Florian Nitze at the Umeå University, Sweden, has developed several new catalysts that improve the capacity of the fuel cells, making it possible to use relatively environmentally friendly formic acid in fuel cell powering your mobile phone or laptop.... Read more »

  • May 29, 2013
  • 08:13 AM

Angelina Jolie doesn't trust medical imaging

by Know Your Images in Know Your Images

Angelina Jolie shocked us all with her decision to remove both her breasts in order to prevent breast cancer. Her breast cancer risk was calculated based on genetics and was 87%. Now it is 5%. I have to agree that this woman is brave! However, I think a very intense screening could have been done with very good results. There are several methods to detect breast cancer: (digital) mammography, tomosynthesis, breast MRI, ultrasound, positron emission tomography and even microwave imaging. Some wit........ Read more »

  • May 28, 2013
  • 04:31 PM

Shape-shifting Nanoparticles Flip from Sphere to Net in Response to Tumor Signal

by Perikis Livas in Chilon

Scientists at the University of California, San Diego, have designed tiny spherical particles to float easily through the bloodstream after injection, then assemble into a durable scaffold within diseased tissue. An enzyme produced by a specific type of tumor can trigger the transformation of the spheres into netlike structures that accumulate at the site of a cancer, the team reports in the journal Advanced Materials this week.... Read more »

Susan Brown. (2013) Shape-shifting Nanoparticles Flip from Sphere to Net in Response to Tumor Signal. UC San Diego News Center. info:/

  • May 27, 2013
  • 04:55 PM

Transparent Graphene Electrode Makes Flexible Solar Cells Possible

by dailyfusion in The Daily Fusion

In a recent article published in journal Advanced Functional Materials, researchers describe a new graphene-coated transparent electrode made of silver nanowires. Because of its ability to bend without breaking, the new invention can be used to create flexible solar cells, computer and consumer electronics displays and future “optoelectronic” circuits for sensors and information processing.... Read more »

  • May 26, 2013
  • 11:30 PM

Distributed computation in foraging desert ants

by Artem Kaznatcheev in Evolutionary Games Group

For computer scientists, ants are most familiar from ant colony optimization. These algorithms rely on simulating how ants lay, follow, and modify pheromone trails to find efficient paths from their hives to food sources. Hence, it might come as a surprise that this is not a universal feature of ants. The cataglyphis niger desert ant […]... Read more »

  • May 24, 2013
  • 11:30 PM

Computer science on prediction and the edge of chaos

by Artem Kaznatcheev in Evolutionary Games Group

With the development of statistical mechanics, physicists became the first agent-based modellers. Since the scientists of the 19th century didn’t have super-computers, they couldn’t succumb to the curse of computing and had to come up with analytic treatments of their “agent-based models”. These analytic treatments were often not rigorous, and only a heuristic correspondence was […]... Read more »

Chazelle, B. (2012) Natural algorithms and influence systems. Communications of the ACM, 55(12), 101. DOI: 10.1145/2380656.2380679  

  • May 24, 2013
  • 10:07 AM

Ants Reveal How to Build a Tunnel You Can't Fall Down

by Elizabeth Preston in Inkfish

It's hard to keep your footing in a steep tunnel made of loose dirt while others are scrambling around and over your body. Harder still in pitch blackness. That's why fire ants build tunnels that will catch them when they fall—a strategy human engineers might want to steal.

"Slips and missteps are likely a constant, recurring feature of life underground," says Nick Gravish, a graduate student in Daniel Goldman's rheology and biomechanics lab at Georgia Tech. Yet ants have to traverse their........ Read more »

Gravish, N., Monaenkova, D., Goodisman, M., & Goldman, D. (2013) Climbing, falling, and jamming during ant locomotion in confined environments. Proceedings of the National Academy of Sciences. DOI: 10.1073/pnas.1302428110  

  • May 23, 2013
  • 03:37 PM

Researchers Turn a Smartphone into a Biosensor

by Jason Carr in Wired Cosmos

University of Illinois at Urbana-Champaign researchers have developed a cradle and app for the iPhone that uses the phone’s built-in camera and processing power as a biosensor to detect toxins, proteins, bacteria, viruses and other molecules. Having such sensitive biosensing capabilities in the field could enable on-the-spot tracking of groundwater contamination, combine the phone’s GPS … Read More →... Read more »

Gallegos, D., Long, K., Yu, H., Clark, P., Lin, Y., George, S., Nath, P., & Cunningham, B. (2013) Label-free biodetection using a smartphone. Lab on a Chip, 13(11), 2124. DOI: 10.1039/C3LC40991K  

  • May 23, 2013
  • 11:58 AM

New Method for Clean and Safe Hydrogen Production Proposed

by dailyfusion in The Daily Fusion

Duke University engineers have developed a new safer method for catalytic hydrogen production. According to the authors of the study, it does not require high temperatures and produces smaller amounts of toxic chemicals than other industrial hydrogen production technologies.... Read more »

  • May 21, 2013
  • 10:15 AM

Algorithmic view of historicity and separation of scales in biology

by Artem Kaznatcheev in Evolutionary Games Group

A Science publications is one of the best ways to launch your career, especially if it is based on your undergraduate work, part of which you carried out with makeshift equipment in your dorm! That is the story of Thomas M.S. Chang, who in 1956 started experiments (partially carried out in his residence room in […]... Read more »

  • May 19, 2013
  • 11:45 PM

Natural algorithms and the sciences

by Artem Kaznatcheev in Evolutionary Games Group

Today, I am passing through New York City on my way to Princeton’s Center for Computational Intractability for a workshop on Natural Algorithms and the Sciences (NA&S). The two day meeting will cover everything from molecular algorithms for learning and experiments on artificial cells to bounded rationality in decision-making and the effects of network topology […]... Read more »

Chazelle, B. (2012) Natural algorithms and influence systems. Communications of the ACM, 55(12), 101. DOI: 10.1145/2380656.2380679  

  • May 18, 2013
  • 07:00 AM

Bigger groups make better decisions

by Randy Olson in Randal S. Olson's Blog

Randy Olson reviews a research paper that shows us how bigger groups can make more accurate decisions.... Read more »

  • May 16, 2013
  • 08:38 AM

‘Brainbow,’ version 2.0

by Perikis Livas in Chilon

The breakthrough technique that allowed scientists to obtain one-of-a-kind, colorful images of the myriad connections in the brain and nervous system is about to get a significant upgrade.... Read more »

Peter Reuell. (2013) ‘Brainbow,’ version 2.0. Harvard Gazette. info:/

  • May 14, 2013
  • 09:30 PM

Four color problem, odd Goldbach conjecture, and the curse of computing

by Artem Kaznatcheev in Evolutionary Games Group

For over twenty-three hundred years, at least since the publication of Euclid’s Elements, the conjecture and proof of new theorems has been the sine qua non of mathematics. The method of proof is at “the heart of mathematics, the royal road to creating analytical tools and catalyzing growth” (Rav, 1999; pg 6). Proofs are not […]... Read more »

Rav, Y. (1999) Why Do We Prove Theorems?. Philosophia Mathematica, 7(1), 5-41. DOI: 10.1093/philmat/7.1.5  

  • May 13, 2013
  • 09:58 AM

Riding Hexapod Walkers on Dusty Alien Worlds

by Jason Carr in Wired Cosmos

Speculative fiction is the home of countless machines that fly in space, yet resemble humanoid lifeforms. Scientists are now working on the next generation of robots that will blaze a trail in space by going where humans simply can’t maneuver on their own. Like so many things in the field of space exploration, the descendents … Read More →... Read more »

  • May 13, 2013
  • 09:45 AM

A Quantum Version of Google

by Carian Thus in United Academics

A team of computer scientists in Spain applied a quantum PageRank algorithm to a network with 7 webpages. They found that the quantum PageRank sometimes ordered the webpages differently in terms of importance, but averaging the quantum PageRank score over time recovered the classical ordering.... Read more »

Paparo, G., & Martin-Delgado, M. (2012) Google in a Quantum Network. Scientific Reports. DOI: 10.1038/srep00444  

  • May 9, 2013
  • 08:43 AM

Reflections on WebSci‘13

by Peter Kraker in Science and the Web

I spent last week at Web Science 2013 in Paris. And what a well spent time that was. Web Science was for sure the most diverse conference I have ever attended. One of the reasons for this diversity is that Webscience was collocated with CHI (Human-Computer-Interaction) and Hypertext. But most importantly, the community of Webscience …Read More... Read more »

Peter Kraker, Kris Jack, Christian Schlögl, Christoph Trattner, & Stefanie Lindstaedt. (2013) Head Start: Improving Academic Literature Search with Overview Visualizations based on Readership Statistics. Web Science 2013. info:/

  • May 9, 2013
  • 08:36 AM

More Than a Good Eye: Carnegie Mellon Robot Uses Arms, Location and More To Discover Objects

by Perikis Livas in Chilon

A robot can struggle to discover objects in its surroundings when it relies on computer vision alone. But by taking advantage of all of the information available to it – an object’s location, size, shape and even whether it can be lifted – a robot can continually discover and refine its understanding of objects, say researchers at Carnegie Mellon University’s Robotics Institute.... Read more »

Byron Spice. (2013) More Than a Good Eye: Carnegie Mellon Robot Uses Arms, Location and More To Discover Objects. Carnegie Mellon University News. info:/

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