physical

This, along with physical representations of more than 100 books that have been lost, unfinished or dreamed up by other writers, will be on display at the Grolier Club, from Thursday through Feb. 15.

The cavers experienced daily physical exertion, isolation and spartan hygiene and sleeping quarters -- a far cry from the strict parameters involved in orthodox lab work.

Girls who lived in neighborhoods designed to support physical activity were less likely to be sedentary.

They represented the bravery and courage that was a hallmark of Mexican boxing, but their lack of concern about violence in the ring suggested their bouts would take a profound physical toll.

"Catch bonds play critical roles in systems like T-cell receptors and bacterial adhesions, which are key to immune responses, tissue integrity and mechano-sensing -- a cell's ability to detect and respond to physical forces," says Yang.