News tagged with select models

Whether tweets live or die depends more on network, competition for attention than message or user influence

On the global social media stage, it's not so much the message but rather network structure and competition for attention that determine whether a meme becomes popular and shows staying power or whether it ...

Other Sciences / Mathematics

created Apr 03, 2012 | popularity 3.7 / 5 (3) | comments 3 | with audio podcast

Study: Self-delusion may be a winning survival strategy

Harbouring a mistakenly inflated belief that we can easily meet challenges or win conflicts is actually good for us, a new study suggests.

Other Sciences / Social Sciences

created Sep 14, 2011 | popularity 4.8 / 5 (4) | comments 18 | with audio podcast

March Madness: Statisticians quantify entry biases

By examining historical data, statisticians in the College of Science at Virginia Tech have quantified biases that play a role in granting Division I at-large basketball teams inclusion in the NCAA March Madness ...

Other Sciences / Mathematics

created Mar 01, 2011 | popularity 2 / 5 (1) | comments 1 | with audio podcast

New model for probing antidepressant actions

medicines such as Prozac, Lexapro and Paxil – work by blocking the serotonin transporter, a brain protein that normally clears away the mood-regulating chemical serotonin. Or so the current thinking goes.

Medicine & Health / Medical research

created Feb 18, 2011 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

Optimal basketball shooting rate proposed based on mathematical model

NBA players may be too conservative with their shots, according to a comparison with a theoretical model describing shot selection reported Jan. 25 in the online journal PLoS ONE.

Other Sciences / Mathematics

created Jan 25, 2012 | popularity 5 / 5 (2) | comments 1

Global tropical forests threatened by 2100

By 2100 only 18% to 45% of the plants and animals making up ecosystems in global, humid tropical forests may remain as we know them today, according to a new study led by Greg Asner at the Carnegie Institution's ...

Space & Earth / Environment

created Aug 05, 2010 | popularity 4.3 / 5 (4) | comments 2 | with audio podcast

Ecological speciation by sexual selection on good genes: Is speciation adaptive?

Darwin suggested that the action of natural selection can produce new species, but 150 years after the publication of his famous book, 'On the Origin of Species', debate still continues on the mechanisms of speciation. New ...

Biology / Ecology

created Nov 26, 2009 | popularity 5 / 5 (2) | comments 0

New mouse model of depression/anxiety enhances understanding of antidepressant drugs

A recent study finds that the antidepressant effects of drugs like Prozac involve both neurogenesis-dependent and -independent mechanisms, a finding that may lead to development of better treatments for depression and anxiety. ...

Medicine & Health / Neuroscience

created May 27, 2009 | popularity not rated yet | comments 1