Growth in the sea comes down to a struggle for iron
...oard the American vessel. The Americans' interest stems in part from the first SEEDS experiment in 2001. Japanese scientists had recorded the largest phytoplankton bloom of any of the iron fertilization tests conducted to that date. The question that remains unanswered is why the diatoms showed signs of n...It's not all genetic: Common epigenetic problem doubles cancer risk in mice
...ercent of the general population -- the extra IGF2 stems not from a genetic problem, or mutation, but an "epigenetic" problem that improperly turns on the copy of the IGF2 gene that should remain off. Unlike most genes, the copy of IGF2 that should be silent depends only on which parent it came from, a si...Gene with broad role also causes prevalent, inherited nerve disorder
...mulation from the nerves. That lack of stimulation stems from one of two underlying causes, which define the two primary forms of the disease: CMT type 1 and 2. In CMT type 1, the speed of the nerve impulse slows due to degradation of the protective myelin sheath that normally covers nerve axons, Zchner e...Discovery promises simpler therapy for sickle cell disease
... their symptoms, despite the fact that the disease stems from a single genetic defect, Stamler said. "This finding, if verified in clinical trials, could change physicians' approach to sickle cell disease," Stamler said. "Current efforts for managing the disease completely miss the role that red blood cell...Why attractive (but costly) males get the girls
...me and sons that were more attractive. The benefit stems in large part, the authors argue, from siring "sexy" sons. Thus, by evaluating both the direct effects of mating on female lifetime fecundity and the indirect effects of offspring fitness, the authors determined the net consequences of a mating strat...Study shows stem cells can preserve vision
... already been lost," says Young, who believes that stems cells will have many roles to play in the fight against blinding diseases.Young and his team are now investigating the same phenomenon in pigs, whose eyes are larger and more like human eyes....Sandbagging cancer in the bloodstream
... new treatment strategy for cancer cell metastasis stems from several years of basic research conducted by Cheresh and his collaborators into an area of biology known as cell adhesion. Cell adhesion is a topic of major importance because it is the basis for how groups of cells form and define functionally......new segregation has taken root, and is growing. It stems from recent immigration. (8 9.45 a.m.) Women and Work: new ways to examine and discuss women. (8-11.45 a.m.) Violence in Contemporary Japan. Discussions about verbal abuse, harrassment, family based eldercare, violence against homeless peo...