Deprecated: Function ereg() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/lang.php on line 32

Deprecated: Function ereg() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/lang.php on line 32

Deprecated: Function ereg_replace() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/acces.php on line 38

Deprecated: Function ereg_replace() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/acces.php on line 39

Deprecated: Function ereg_replace() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/acces.php on line 40

Deprecated: Function ereg() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/flock.php on line 60

Deprecated: Function ereg() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/texte.php on line 1428

Deprecated: Function ereg() is deprecated in /home/hochedez/lebadaud.com/ecrire/inc/lang.php on line 32
Your hair can reveal your recent travels - Le badaud - La presse autrement !
Le logo du Badaud
Le Badaud, version 2.0
  Tous les jours, les news qui font parler...
 
Accueil
Edito
 
Les articles
Les enquêtes du Badaud
Les lectures du Badaud
Les humeurs du Badaud
Les coups de coeur du Badaud
Le Badaud of the month
 
Les services
Carte du site
Contacts
Acces administrateurs
version texte pour les personnes handicapées visuelles
 
     
 

Les lectures du badaud

Your hair can reveal your recent travels Your hair can reveal your recent travels

Tracking the recent whereabouts of suspected criminals or uncovering the true origins of asylum-seeking immigrants might come down to a single hair, says a UK researcher. Stuart Black and his colleagues at the University of Reading are testing a new method of determining where people have lived by measuring the ratios of oxygen and hydrogen isotopes in their tissues or fluids. They presented their results at the British Association for the Advancement of Science Festival in Exeter, UK.

The method is based on the ratio of two sets of naturally occurring isotopes, oxygen-16 and oxygen-18, and hydrogen and deuterium. Plants and animals alike absorb a distinct local pattern of isotopes from the water and food they consume. The isotopes, absorbed into the body from water, have predictable values for different local areas and leave a telltale signature in tissues. “Hair is particularly good because it grows about a centimetre a month,” says Black. “So it actually grows a record of not only where you have been but what you have been eating and drinking.”

He says the technology could assist police investigations and potentially help immigration officials to decide whether people seeking asylum are arriving from appropriate countries. “We’re not going to get a postcode,” says Black. “It will only get as far as a regional level, but that may be good enough for some cases.” 

Source : The Standard, Nairobi (Kenya)


[ Envoyer cet article à un ami ]


Laissez un commentaire:

L'actu vue en dessin par CAD
Inscription à la newsletter

 Inscription
 Désinscription


MC's badaudblog
Ben's badaudblog

Guide des meilleurs hébergeurs Web

Meilleure banque

Comparatif banques en ligne