Can determinable properties earn their keep?

Cytoskeleton: Axons Earn Their Stripes

Axons must be supported by a strong and flexible cytoskeleton. New 'super-resolution' imaging of the submembranous axonal cytoskeleton reveals that it is organized in a periodic, ladder-like structure with alternating rings of actin linked together by intervening complexes of spectrin.

Can mitochondrial clocks keep time?

Put a scientist on the analyst's couch, say the word "mitochondria," and she's likely to blurt out "powerhouse of the cell" in response. But if she happens to be an evolutionary biologist, she might instead connect this organelle with a different type of power: the ability to illuminate evolutionary events deep in the past. For over two decades, biologists have been using mitochondrial DNA (mtD...

Can you keep a secret?

The characteristics of a method for measuring cyclic AMP binding proteins in cytosols of human breast cancer are described. Using the assay, binding proteins were demonstrable in all of 100 tumour cytosols. Levels of binding in individual tumours varied from 0.8 to 15 pmol mg-1 cytosol protein (mean value 5 pmol mg-' cytosol protein) and the dissociation constant ranged from 0.5 to 5.2 x 10-8M ...

Women Can Earn $105 a Month Learning War Work

Hypoxic turtles keep their cool

Several species of freshwater turtles spend the winter submerged in ice-covered lakes in a state of severe metabolic depression. It has been proposed that the hibernating turtles are comatose and entirely unresponsive, which raises the question of how they detect the arrival of spring and whether they respond to sensory information during hibernation. Using evoked potential studies in cold hypo...