Sir Richard John Harrison. 8 October 1920 – 17 October 1999

17 Lecture, 28 October 1999

The refractive index of air is close to unity, but not close enough to spare astronomers from one of their most persistent adversaries, turbulence. Energy from solar and local sources is constantly pumped into the atmosphere between telescope and celestial object, changing the temperature and pressure of the air where it is absorbed, in a manner that leads to a variety of fluid instabilities. T...

Cover 17-5 October 2020

Persian-translation 17-5 October 2020

Report from October 1999 Seminar:

OBJECTIVE: To study the effects on children of humanitarian aid agencies restricting help to refugee families (internally displaced people). DESIGN: Follow up study of 3 months. SETTING: Prabis peninsular outside Bissau, the capital of Guinea-Bissau, which has functioned as a refugee area for internally displaced people in the ongoing war, and the study area of the Bandim health project in Biss...

Research Activities #230, October 1999

in Minnesota who were covered by health maintenance organizations (HMOs) received life-saving thrombolytic treatments at least as often as those covered by traditional fee-for-service (FFS) plans. In addition, they were slightly more likely to have received emergency transportation and aspirin therapy, according to a recent study funded by the Agency for Health Care Policy and Research (HS07357...