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Search results for dentin

Evolution Jan 5, 2010

Ongoing evolution among modern humans

(Âé¶¹ÒùÔºOrg.com) -- It has long been the common perception that once modern humans appeared more than 50,000 years ago, little has changed in human biology.

Evolution Dec 28, 2009

First molars provide insight into evolution of apes, humans

(Âé¶¹ÒùÔºOrg.com) -- The timing of molar emergence and its relation to growth and reproduction in apes is being reported by two scientists at Arizona State University's Institute of Human Origins in the Dec. 28 online early edition ...

Plants & Animals Nov 5, 2009

Male sabertoothed cats were pussycats compared to macho lions

Despite their fearsome fangs, male sabertoothed cats may have been less aggressive than many of their feline cousins, says a new study of male-female size differences in extinct big cats.

Optics & Photonics Aug 18, 2009

Open wide and say 'zap'

A group of researchers in Australia and Taiwan has developed a new way to analyze the health of human teeth using lasers. As described in the latest issue of Optics Express,, by measuring how the surface of a tooth responds ...

Nanomaterials Jul 1, 2009

Nanotechnology may increase longevity of dental fillings

Tooth-colored fillings may be more attractive than silver ones, but the bonds between the white filling and the tooth quickly age and degrade. A Medical College of Georgia researcher hopes a new nanotechnology technique will ...

Bio & Medicine Jun 29, 2009

Can a new implant coating technique create a new six million dollar man?

Tel Aviv University researcher Prof. Noam Eliaz of the TAU School of Mechanical Engineering has developed an electrochemical process for coating metal implants which vastly improves their functionality, longevity and integration ...

Nov 22, 2006

Daily grind: Fossil molars add to Neanderthal debate

Palaeontologists have fired a new round in a verbal battle over the Neanderthals, the hominids who were our closest evolutionary cousins before they met a strange and possibly tragic end.

Oct 2, 2006

Alternative energy: A new way to take a bite of sunlight

Flash those pearly whites in a dazzling smile and you showcase a natural light collector mechanism hidden inside the internal structure of dentin - the hard, bone-like material that forms the main part of teeth.

Oct 26, 2005

Electromechanical Imaging of Butterfly Wings and Other Biological Tissue

Applying state-of-the-art technology to a seldom-exploited electromechanical property in biomolecules, Sergei Kalinin and Brian Rodriguez of Oak Ridge National Laboratory and Alexei Gruverman of North Carolina State University ...

Oct 21, 2005

Mammoth moms heavily invested in offspring

Details about the life of a young woolly mammoth that died thousands of years ago are emerging from a study of the animal's fossil tusk. One intriguing finding: the calf nursed from its mother six or more years, apparently ...

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