Analysis of 89 models of metabolic processes finds flaws in 44 of them—but suggests corrections
Metabolic networks are mathematical models of every possible sequence of chemical reactions available to an organ or organism, and they're used to design microbes for manufacturing processes or to study disease. ...
New theorem determines the age distribution of populations from fruit flies to humans
The initial motivation was to estimate the age structure of a fruit fly population, the result a fundamental theorem that can help determine the age distribution of essentially any group.
Adding uncertainty to improve mathematical models
Mathematicians from Brown University have introduced a new element of uncertainty into an equation used to describe the behavior of fluid flows. While being as certain as possible is generally the stock and ...
At the interface of math and science
In popular culture, mathematics is often deemed inaccessible or esoteric. Yet in the modern world, it plays an ever more important role in our daily lives and a decisive role in the discovery and development ...
People looking for proof to come from any research in science will be sadly disappointed
As an astrophysicist, I live and breathe science. Much of what I read and hear is couched in the language of science which to outsiders can seem little more than jargon and gibberish. But one word is rarely ...
By watching people walk, researchers decode the foot position's role in maintaining balance
Researchers at The Ohio State University have gained new insight into how the body moves when we're walking. They learned everything they needed to know by watching people walk naturally on a treadmill.
XPRIZE announces Global Learning XPRIZE—$15 million competition to disrupt education
Math journal puts Rauzy fractcal image on the cover
An image created by geometer Edmund Harriss made the cover of the mathematics journal Notices, published by the American Mathematical Society. The image, created in collaboration with Bill Casselman, appear ...
Fluid mechanics suggests alternative to quantum orthodoxy
The central mystery of quantum mechanics is that small chunks of matter sometimes seem to behave like particles, sometimes like waves. For most of the past century, the prevailing explanation of this conundrum ...
Researchers use math and observation to show neural networks in crustaceans have evolved to offer optimized swimming
Tweets during 2013 Colorado floods gave engineers valuable data on infrastructure damage
Tweets sent during last year's massive flooding on Colorado's Front Range were able to detail the scope of damage to the area's infrastructure, according to a study by the University of Colorado Boulder.
Local model better describes lunar gravity
Two satellites orbiting the Moon as a part of NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission have been mapping its inner structure by measuring subtle shifts in the pull of gravity on the ...
Life boils down to five 'rules' … or so says the Madingley Model
It may sound overly simple, but just five processes can define us as animals: eating, metabolism, reproduction, dispersal and death.
Neanderthals and humans had 'ample time' to mix
Humans and Neanderthals may have coexisted in Europe for more than 5,000 years, providing ample time for the two species to meet and mix, according to new research.