Friday, April 30, 2010
Thursday, April 22, 2010
Sunday, April 11, 2010
This is an intriguing concept that I believe people will find interesting, so I would suggest that teachers could use it as a current event article.
Bacterial "Signatures" Linger on Users' Keyboards
recent research into the human microbiome –
suggests that humans serve as hosts for an astounding diversity of microorganisms. In fact, each of us supports as many as 10 times the number of microbes as there are cells in the human body.
Saturday, April 10, 2010
Asexual Plant Reproduction May Seed New Approach for Agriculture
Arabidopsis thaliana, a small flowering mustard plant, normally reproduces sexually. But Jean Philippe Vielle-Calzada and his colleagues have show that silencing a protein called Argonaute 9 causes the plant to begin reproducing asexually instead. The blue shading shows the area involved in gamete formation that is disrupted when Argonaute 9 is silenced.
his problem is sidestepped by some plants—such as dandelions and poplar trees—that reproduce asexually by essentially cloning themselves. Jean-Philippe Vielle-Calzada, a Howard Hughes Medical Institute (HHMI) international research scholar, wondered whether he could learn enough about the genetics of asexual reproduction to apply it to plants that produce sexually. In an advance online publication in Nature on March 7, 2010, Vielle-Calzada and his colleagues report that they have moved a step closer to turning sexually-reproducing plants into asexual reproducers,
Tuesday, April 6, 2010
This new information could decrease the high number of deaths, up to 22%, from hip fractures and resulting surgery.
Evidence Versus Beliefs About Predictors of
Knowledge of predictors of outcome can and should influence
The responses of American surgeons vs European surgeons regarding predictors of outcome after operative treatment of femoral neck fractures.
survey and current evidence