Is native tissue always better?

Is more always better

Is more always better? We address this question in the context of bibliometric indices that aim to assess the scientific impact of individual researchers by counting their number of highly cited publications. We propose a simple model in which the number of citations of a publication depends not only on the scientific impact of the publication but also on other ‘random’ factors. Our model indic...

Exercise: Is More Always Better?

Do greater levels of exercise always promote relatively higher levels of daily energy expenditure and health? Recent studies challenge the traditional assumption that 'more exercise is better' by suggesting daily energy expenditure and health plateaus are reached beyond which incremental gains are minimal.

Medical care--is more always better?

[Budgetary blues: more is not always better].

Después de años de un continuado crecimiento muy por encima el de nuestro producto interior bruto, el gasto sanitario empieza mostrar inequívocamente su frenada. Las alegrías de su pasado umento se tornan en tristeza y decaimiento, con una verosímil endencia a ir a menos. Es comprensible que la situación no suscite legría, pero no deja de extrañar la generalizada preocupación por l «mal color» ...

For telomeres, longer is not always better.

N E W S " Short people got no reason to live, " goes the Randy Newman song. The same used to be thought of cells with short telomeres, those indispensable nubs of repetitive DNA and protein coating that protect the ends of chromosomes. But if Randy Newman was singing about telomeres, he would have to rewrite his lyrics. New findings are overturning what scientists thought they knew about the im...