Posts Tagged ‘strontium’

Infant Tooth Reveals Neandertal Breast-Feeding Habits

Tooth Care | Posted by admin
May 30 2013



By measuring a relations amounts of barium and calcium on a tooth’s expansion lines, scientists showed that a Neandertal tot substantially switched to a plain diet comparatively early.
Image: Ian Harrowell, Christine Austin, and Manish Arora

The changing ratios of calcium and barium in a teeth of complicated humans and macaques account a transition from mother’s divert to plain food — and might yield clues about the

Article source: http://www.scientificamerican.com/article.cfm?id=infant-tooth-reveals-neandertal-breastfeeding-habits

Infant Tooth Reveals Neandertal Breastfeeding Habits

Tooth Care | Posted by admin
May 24 2013



By measuring a relations amounts of barium and calcium on a tooth’s expansion lines, scientists showed that a Neandertal tot substantially switched to a plain diet comparatively early.
Image: Ian Harrowell, Christine Austin, and Manish Arora

The changing ratios of calcium and barium in a teeth of complicated humans and macaques account a transition from mother’s divert to plain food — and might yield clues about the

Article source: http://www.scientificamerican.com/article.cfm?id=infant-tooth-reveals-neandertal-breastfeeding-habits

Infant tooth reveals Neanderthal breastfeeding habits

Tooth Care | Posted by admin
May 22 2013

By measuring a relations amounts of barium and calcium on a tooth’s expansion lines, scientists showed that a Neanderthal tot substantially switched to a plain diet comparatively early.

Ian Harrowell, Christine Austin, and Manish Arora

The changing ratios of calcium and barium in a teeth of complicated humans and macaques account a transition from mother’s divert to plain food — and might yield clues about a weaning habits of Neanderthals, a new investigate suggests.

The accepted vegetable in a tooth finish of primates is hydroxyapatite, a form of calcium phosphate. But snippet elements benefaction in a bloodstream that are chemically identical to calcium, such as strontium and barium, can be incorporated into finish as it calcifies, says Manish Arora, an environmental chemist during a Icahn School of Medicine during Mount Sinai in New York. Teeth start combining in a gums before birth, and they record daily expansion lines via their

Article source: http://www.nature.com/doifinder/10.1038/nature.2013.13047

Teeth exhibit emigration patterns of ancient humans

Teeth And Dentistry | Posted by admin
Dec 20 2012

A group of dental earthy scientists have been regulating x-ray
diffraction to investigate a growth of children’s teeth in order
to lane emigration patterns of a ancestors.

The group has been regulating a festively-named XMaS trickery (X-ray
Magnetic Scattering) during a European
Synchrotron Radiation Facility
in Grenoble to perform detailed
analysis of tooth structure and composition. The work will make it
possible to re-interpret archaeological annals of ancient human
migrations and might also assistance scientists to regrow tellurian teeth lost
due to illness or age.

The combination of finish — a tough outer-coating on teeth —
is influenced by diet. Archaeologists are means to investigate a ratio of
elements such as strontium and lead benefaction to find markers of the
geology in a soils where a plants a chairman ate were grown.
These variations can uncover a change in eating habits brought on by a
migration when a chairman was

Article source: http://www.wired.co.uk/news/archive/2012-12/19/xmas-teeth-studies