juin 29, 2009 par Oldcola
Data are those published by WHO. You may want to add their RSS to your reader. I’ll keep updating the graph as long as the alert level will not drop below 4. Feel free to copy it and use it; just avoid to link it with antivax insanity please.
Graph under the fold
Continuer à lire »
Publié dans virus | Taggé grippe A(H1N1), grippe mexicaine, grippe porcine, influenza A(H1N1), mexican flu, swine flu | Leave a Comment »
juillet 4, 2009 par Oldcola
Publié dans Jesus&Mo | Leave a Comment »
juillet 3, 2009 par Oldcola
Il y a un commentaire par JJG, auquel je n’ai pas répondu de suite parce que je voulais réfléchir un peu avant de prendre un décision.
Et comme le sujet n’est pas trivial je donne la réponse en billet séparé plutôt qu’en commentaire.
Continuer à lire »
Publié dans Interesting stuff, housekeeping blog | 1 commentaire »
juillet 3, 2009 par Oldcola
Ceci n’étant qu’un extrait, il faut cliquer sur l’image pour voir le suite (vers le bas).
Publié dans humor | Leave a Comment »
juillet 2, 2009 par Oldcola
Disease-corrected haematopoietic progenitors from Fanconi anaemia induced pluripotent stem cells
Nature 460, 53-59 (2 July 2009) | doi:10.1038/nature08129
Ángel Raya, Ignasi Rodríguez-Pizà, Guillermo Guenechea, Rita Vassena, Susana Navarro, María José Barrero, Antonella Consiglio, Maria Castellà, Paula Río, Eduard Sleep, Federico González, Gustavo Tiscornia, Elena Garreta, Trond Aasen, Anna Veiga, Inder M. Verma, Jordi Surrallés, Juan Bueren & Juan Carlos Izpisúa Belmonte
Continuer à lire »
Publié dans stem cells | Leave a Comment »
juillet 2, 2009 par Oldcola
Cells keep a memory of their tissue origin during axolotl limb regeneration
Martin Kragl, Dunja Knapp, Eugen Nacu, Shahryar Khattak, Malcolm Maden, Hans Henning Epperlein & Elly M. Tanaka
Nature 460, 60-65 (2 July 2009) | doi:10.1038/nature08152
Continuer à lire »
Publié dans development, wound | Leave a Comment »
juillet 2, 2009 par Oldcola
Dysregulation of the Wnt pathway inhibits timely myelination and remyelination in the mammalian CNS
Stephen P.J. Fancy, Sergio E. Baranzini, Chao Zhao, Dong-In Yuk, Karen-Amanda Irvine, Sovann Kaing, Nader Sanai, Robin J.M. Franklin and David H. Rowitch
Published in Advance June 10, 2009, doi:10.1101/gad.1806309
Continuer à lire »
Publié dans multiple sclerosis | Taggé ß-catenin, beta-catenin, Wnt | Leave a Comment »
juillet 2, 2009 par Oldcola
How to Build a Better Tree of Life § SEEDMAGAZINE.COM:
“Organizing the world’s species into branches on a phylogenetic tree is a major goal of biologists trying to understand how life evolved. DNA-sequencing technologies are providing them with more information than ever with which to accomplish this goal, but with less than 1 percent of all species currently placed in any kind of phylogeny, there is still much work to be done. In a recent paper in Science, researchers at the University of Texas at Austin introduced new tree-building software that could expand the tree of life and change our understanding of evolution.”
[more…]
Publié dans evolution | Leave a Comment »
juin 30, 2009 par Oldcola
@yokofakun: Test your knowledge about Darwin & Evolution (In French) doc: http://tinyurl.com/mnek9m ( via Nouvel Obs http://tinyurl.com/laml8s )
@sciencesetdemoc: Revue2web: Génétiquement pro-OGM
http://tinyurl.com/njgtcb
@rubp: RT
@tweetmeme BioData Product Blog – Carbon Dioxide Affects Fish Ear Structure
http://bit.ly/ToOA1 #biodata
Related: Elevated CO2 Enhances Otolith Growth in Young Fish
David M. Checkley, Jr., Andrew G. Dickson, Motomitsu Takahashi, J. Adam Radich, Nadine Eisenkolb, Rebecca Asch
A large fraction of the carbon dioxide added to the atmosphere by human activity enters the sea, causing ocean acidification. We show that otoliths (aragonite ear bones) of young fish grown under high CO2 (low pH) conditions are larger than normal, contrary to expectation. We hypothesize that CO2 moves freely through the epithelium around the otoliths in young fish, accelerating otolith growth while the local pH is controlled. This is the converse of the effect commonly reported for structural biominerals.
Science 26 June 2009, Vol. 324. no. 5935, p. 1683, doi: 10.1126/science.1169806
Researchers discover new fluorescent silicon nanoparticles
Researchers in the Department of Physics and Astronomy at the University of Leicester have developed a new synthesis method, which has led them to the discovery of fluorescent silicon nanoparticles and may ultimately help track the uptake of drugs by the body’s cells.
Publié dans Interesting stuff | Leave a Comment »