News tagged with theory model


Raven teenager gangs play by game theory

Biology / Plants & Animals

created May 22, 2009 | popularity 3 / 5 (2) | comments 0

Game theory models predicted that young ravens gain the greatest advantage from hunting in a pack. Now the young birds have figured this out for themselves, and form gangs to oust older raven pairs from tasty carcasses.





Search results for theory model


Rewriting general relativity?

Rewriting general relativity? Putting a new model of quantum gravity under the microscope

Physics / Quantum Physics

created Aug 24, 2009 | popularity 4.2 / 5 (17) | comments 9

Does an exciting but controversial new model of quantum gravity reproduce Einstein's theory of general relativity? Scientists at Texas A&M University in the US explore this question in a paper appearing in ...


Thinking of you: Studies of blind reveal how we think about other people

Medicine & Health / Neuroscience

created Jun 29, 2009 | popularity 4.7 / 5 (6) | comments 0

(PhysOrg.com) -- Human beings constantly make inferences about other people's state of mind, usually without even realizing they are doing it. Cognitive scientists call this ability "theory of mind," and until recently, not ...


Can R2 gravity explain dark matter?

Physics / General Physics

created Apr 20, 2009 | popularity 3.5 / 5 (62) | comments 50

(PhysOrg.com) -- "In many ways, the standard model of cosmology works very well," Jose Cembranos tells PhysOrg. "However, there are very basic features that we just do not know. We have dark energy and dark matter. They d ...


Bizarre bird behavior predicted by game theory

Bizarre bird behavior predicted by game theory

Other Sciences / Mathematics

created Feb 25, 2009 | popularity 4.3 / 5 (11) | comments 0

A team of scientists, led by the University of Exeter, has used game theory to explain the bizarre behaviour of a group of ravens. Juvenile birds from a roost in North Wales have been observed adopting the ...


Physicists offer foundation for uprooting a hallowed principle of physics

Physics / General Physics

created Jan 05, 2009 | popularity 4.7 / 5 (23) | comments 30

Physicists at Indiana University have developed a promising new way to identify a possible abnormality in a fundamental building block of Einstein's theory of relativity known as "Lorentz invariance." If confirmed, the abnormality ...


New model system may better explain regulation of body weight

Other Sciences / Mathematics

created Jan 14, 2009 | popularity 4 / 5 (4) | comments 0

A new mathematical model of the physiological regulation of body weight suggests a potential mechanism underlying the difficulty of losing weight, one that includes aspects of two competing hypotheses of weight regulation. ...


Fundamental flaw in transistor noise theory discovered

Fundamental flaw in transistor noise theory discovered

Physics / General Physics

created May 21, 2009 | popularity 4.5 / 5 (20) | comments 10

(PhysOrg.com) -- Chip manufacturers beware: There's a newfound flaw in our understanding of transistor noise, a phenomenon affecting the electronic on-off switch that makes computer circuits possible. According ...


Clownfish provide clues to animal conflicts

Clownfish provide clues to animal conflicts

Biology / Plants & Animals

created Jul 02, 2009 | popularity 5 / 5 (2) | comments 0

(PhysOrg.com) -- Animal societies are hotbeds of conflict and cooperation, with creatures helping each other one moment and fighting the next. Biologist Andrew Zink has developed a new theoretical framework ...


Sharing Scarce Flu Vaccine May Be Best: Game Theory Model Shows Hoarding Supplies Isn't Healthiest Choice

Sharing Scarce Flu Vaccine May Be Best: Game Theory Model Shows Hoarding Supplies Isn't Healthiest Choice

Medicine & Health / Research

created Sep 22, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- As manufacturers race to test and deliver an H1N1 influenza vaccine by October, public health officials are working equally feverishly to determine how scarce doses should be allocated.


Odors Simplified

Brain encodes complex plumes of odors with a simple code

Medicine & Health / Research

created Feb 25, 2009 | popularity 4.7 / 5 (3) | comments 0

In the real world, odors don't happen one puff at a time. Animals move through, and subsequently distort, plumes of odor molecules that constantly drift, changing direction as the wind disperses them. Now, ...



List of search results for theory model