High-contrast terawatt chirped-pulse-amplification laser that uses a 1-ps Nd:glass oscillator.

We have developed a fiberless 1-TW all-Nd:glass chirped-pulse-amplification laser system that uses high-contrast 0.8-1.4-ps pulses produced directly from a Nd:glass feedback-controlled oscillator.

Plasma antidiurectic hormone during hypoxia and anaesthesia in pigs.

The level of antidiuretic hormone (ADH) in the plasma of pigs was studied during hypozia, anaesthesia and a combination of the two conditions. Hypoxia, caused by making conscious pigs breathe nitrogen, elicited a rise in the level of ADH without change in plasma osmolality; the hypoxia was accompanied in some cases by a slight lowering of arterial pressure which quickly returned to its original level after the period of hypoxic breathing. Pentobarbitone anaesthesia had no significant effect on the level of ADH but halothane anaesthesia elicited a rise in ADH.

Effect of environmental temperature and food intake on the distribution of fat in growing hairless mice.

1. The fat content of the skin and of the skin-free carcass was measured in young, growing hairless mice about 4-8 weeks old kept at either 22 degrees (cool environment, i.e.