Orsini's viper: Growth or reproduction?

Orsini's viper, a rare and protected species at risk of extinction in France, has an original reproductive strategy. In alternate years, it switches between reproductive and non-reproductive behavior. This strategy has recently ...

Researchers use voltammetry to probe the brain's chemistry

(Phys.org)—Our brains are constantly awash in chemicals that serve as messengers, transporting signals from one neuron to another.  It's a really nifty system, although scientists still aren't clear on how, exactly, those ...

New insights into placebo effect

(Phys.org)—Mathematical models developed by scientists at the University of Bristol are providing new insights into why the placebo effect exists and when it should occur. Their research is published today in the journal ...

Protecting confidential data with math

Statistical databases (SDBs) are collections of data that are used to gather and analyze information from a variety of sources. The data may be derived from sales transactions, customer files, voter registrations, medical ...

After almost 20 years, math problem falls

Mathematicians and engineers are often concerned with finding the minimum value of a particular mathematical function. That minimum could represent the optimal trade-off between competing criteria — between the surface ...

How bumblebees tackle the traveling salesman problem

It is a mathematical puzzle which has vexed academics and travelling salesmen alike, but new research from Queen Mary, University of London's School of Biological and Chemical Sciences, reveals how bumblebees effectively ...

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