News tagged with information theory


Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Proposed Spacetime Structure Could Provide Hints for Quantum Gravity Theory

Physics / Quantum Physics

created Dec 16, 2009 | popularity 4.6 / 5 (55) | comments 16 feature

(PhysOrg.com) -- Spacetime, which consists of three dimensions of space and one time dimension, is such a large, abstract concept that scientists have a very difficult time understanding and defining it. Moreover, ...


How Bob Detects Possible Errors in the Coding of Alice's Message

Viterbi Algorithm goes quantum

Physics / General Physics

created Jul 31, 2008 | popularity 4.8 / 5 (11) | comments 0

The Viterbi Algorithm, the elegant 41-year-old logical tool for rapidly eliminating dead end possibilities in data transmission, has a new application to go alongside its ubiquitous daily use in cell phone ...





Search results for information theory


Scientists discover 2 genes that drive aggressive brain cancers

Medicine & Health / Cancer

created Dec 23, 2009 | popularity 4 / 5 (2) | comments 0

A team of Columbia scientists have discovered two genes that, when simultaneously activated, are responsible for the most aggressive forms of human brain cancer.


Researchers crack part of the neuronal code

Researchers crack part of the neuronal code

Medicine & Health / Neuroscience

created Dec 22, 2009 | popularity 4.9 / 5 (7) | comments 0

(PhysOrg.com) -- Prostheses for paralysed patients, communication with patients who have lost all capacity for normal communication - the hopes for modern brain research are high. However, such brain-machine ...


Financial instruments could be spiked with unfindable risks

Financial instruments could be spiked with unfindable risks

Other Sciences / Economics

created Dec 21, 2009 | popularity 4.7 / 5 (18) | comments 42

(PhysOrg.com) -- In a result that may have implications for financial regulation, researchers from computer science and economics have revealed potentially impenetrable problems with the pricing of financial ...


Mystery of golden ratio explained

Researcher explains mystery of golden ratio

Other Sciences / Mathematics

created Dec 21, 2009 | popularity 2.6 / 5 (24) | comments 8

The Egyptians supposedly used it to guide the construction the Pyramids. The architecture of ancient Athens is thought to have been based on it. Fictional Harvard symbologist Robert Langdon tried to unravel ...


From terrorism to HIV, it's all about the network

Other Sciences / Social Sciences

created Dec 18, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Similarities between webs of terrorists and networks of rescue personnel may seem unlikely. To an eclectic collaboration of engineers and social scientists, the connections are not only possible, but a potential ...


Researcher studies the universe through quantum electrodynamics

Physics / Quantum Physics

created Dec 17, 2009 | popularity 3.6 / 5 (9) | comments 0

(PhysOrg.com) -- Fundamental constants, such as the standards for length and mass, are a given in our society. However, research has shown that these constants might be changing slightly with the expansion of the universe.


Researchers revise long-held theory of fruit-fly development

Researchers revise long-held theory of fruit-fly development

Biology / Cell & Microbiology

created Dec 17, 2009 | popularity not rated yet | comments 0

For decades, science texts have told a simple and straightforward story about a particular protein—a transcription factor—that helps the embryo of the fruit fly, Drosophila melanogaster, pattern tissues in a m ...


Soap opera in the marsh: Coots foil nest invaders, reject impostors

Soap opera in the marsh: Coots foil nest invaders, reject impostors

Biology / Plants & Animals

created Dec 16, 2009 | popularity 4.5 / 5 (2) | comments 0

(PhysOrg.com) -- The American coot is a drab, seemingly unremarkable marsh bird common throughout North America. But its reproductive life is full of deception and violence.


Rain or Shine? Computer Models How Brain Cells Reach a Decision

Medicine & Health / Neuroscience

created Dec 14, 2009 | popularity 3.3 / 5 (4) | comments 0

(PhysOrg.com) -- Yale University researchers have devised a computer model to explain how the brain makes decisions based on statistical probabilities-as, for instance, when a doctor makes a diagnosis based on several conflicting ...


Old math reveals new thinking in children's cognitive development

Biology / Other

created Dec 11, 2009 | popularity 4.2 / 5 (6) | comments 0

Five-year-olds can reason about the world from multiple perspectives simultaneously, according to a new theory by researchers in Japan and Australia. Using an established branch of mathematics called Category Theory, the ...



List of search results for information theory