Recherche

<
TwitterFacebook
Get flash to fully experience Pearltrees

PubMed home

http://www.ncbi.nlm.nih.gov/pubmed/ PubMed comprises more than 21 million citations for biomedical literature from MEDLINE, life science journals, and online books.
http://blast.ncbi.nlm.nih.gov/Blast.cgi BLAST finds regions of similarity between biological sequences. more...

BLAST: Basic Local Alignment Search Tool

http://scirus.com/srsapp/

for scientific information

is the most comprehensive scientific research tool on the web. With over 440 million scientific items indexed at last count, it allows researchers to search for not only journal content but also scientists' homepages, courseware, pre-print server material, patents and institutional repository and website information.
http://www.chemweb.com/ ChemWeb members now have access to selected full text articles from Chemistry publishers such as Wiley, Elsevier and Springer.

Welcome to ChemWeb

Wikipédia, l'encyclopédie libre

http://fr.wikipedia.org/wiki/Accueil L' accueil est une cérémonie ou prestation réservée à un nouvel arrivant, consistant généralement à lui souhaiter la bienvenue et à l’aider dans son intégration ou ses démarches.