News tagged with left handedness

New research suggests right-handedness prevailed 500,000 years ago

(PhysOrg.com) -- Research by University of Kansas professor David Frayer shows that distinctive markings on fossilized teeth correlate to the right or left-handedness of individual prehistoric humans.

Other Sciences / Archaeology & Fossils

created Apr 19, 2011 | popularity 4.6 / 5 (7) | comments 13 | with audio podcast

Sinister business: Lefties have evolutionary boon

Under Darwinian pressure, genes that don't help the struggle to survive get squeezed out of the genetic code, leaving the ones that are fitter.

Biology / Evolution

created Feb 27, 2009 | popularity 3.6 / 5 (13) | comments 10




Search results for left handedness


MAJORANA, the search for the most elusive neutrino of all

(Phys.org) -- In a cavern almost a mile underground in the Black Hills, an experiment called the MAJORANA DEMONSTRATOR, 40 kilograms of pure germanium crystals enclosed in deep-freeze cryostat modules, will ...

Physics / General Physics

created May 17, 2012 | popularity 5 / 5 (9) | comments 17 | with audio podcast

Researchers unlock mystery of how 'handedness' arises

The overwhelming majority of proteins and other functional molecules in our bodies display a striking molecular characteristic: They can exist in two distinct forms that are mirror images of each other, like ...

Physics / General Physics

created May 08, 2012 | popularity 4.8 / 5 (16) | comments 10 | with audio podcast

Shedding light on southpaws: Sports data help confirm theory explaining left-handed minority in general population

Lefties have always been a bit of a puzzle. Representing only 10 percent of the general human population, left-handers have been viewed with suspicion and persecuted across history. The word "sinister" even derives from "left ...

Other Sciences / Social Sciences

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

Spectroscopic evidence for the unusual handedness of a mammalian lipid may advance our understanding of evolution

Phospholipids are the main constituents of the cellular membranes in all organisms, ranging from single-celled archaea to highly complex plants and mammals. According to conventional wisdom, the chemical backbone ...

Chemistry / Biochemistry

created Mar 23, 2012 | popularity 5 / 5 (1) | comments 0

New chemical reaction holds promise for drug development

A team of researchers at the California Institute of Technology (Caltech) has devised a new method for making complex molecules. The reaction they have come up with should enable chemists to synthesize new ...

Chemistry / Materials Science

created Jan 12, 2012 | popularity 5 / 5 (5) | comments 0 | with audio podcast

NMR used to determine whether gold nanoparticles exhibit 'handedness'

Carnegie Mellon University's Roberto R. Gil and Rongchao Jin have successfully used NMR to analyze the structure of infinitesimal gold nanoparticles, which could advance the development and use of the tiny ...

Nanotechnology / Bio & Medicine

created Dec 08, 2011 | popularity 5 / 5 (3) | comments 0 | with audio podcast

'Left-handed iron corkscrews' point the way to new weapon in battle against superbugs like MRSA

Scientists at the University of Warwick have taken inspiration from corkscrew structures found in nature to develop a new weapon in the fight against infections like E-coli and MRSA.

Chemistry / Biochemistry

created Nov 28, 2011 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Scientists develop the most advanced computer model to-date of the scattering of polarized light from chiral molecules

(PhysOrg.com) -- An international research team has described the first calculations of Raman optical activity (ROA) spectra using coupled-cluster theory – one of the most reliable quantum chemical methods ...

Chemistry / Analytical Chemistry

created Oct 04, 2011 | popularity not rated yet | comments 0

Building better catalysts: Chemists find new way to design important molecules

(PhysOrg.com) -- University of Utah chemists developed a method to design and test new catalysts, which are substances that speed chemical reactions and are crucial for producing energy, chemicals and industrial products. ...

Chemistry / Materials Science

created Sep 29, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Mathematicians, biologists explain why vertebrate intestines are so predictably loopy

Between conception and birth, the human gut grows more than two meters long, looping and coiling within the tiny abdomen. Within a given species, the developing vertebrate gut always loops into the same formation—however, ...

Biology / Plants & Animals

created Aug 10, 2011 | popularity 4.6 / 5 (5) | comments 4 | with audio podcast


List of search results for left handedness