Cerebral blood flow was measured with xenon in 21 fetal sheep and 14 newborn lambs under 48 hours old. When the ewe breathed air, the average gray matter blood flow in the fetuses was 70.6 ml/100 g/min, the average white matter blood flow 15.4 ml/100 g/min and average gray matter oxygen consumption 2.06 ml/100 g/min. The corresponding values in the newborn lambs were 87.2, 17.8, and 2.98 ml/100...

ROMERO, TOMAS, JAMES COVELL, AND WILLIAM F. FRIEDMAN. A comparison of pressure-volume relations of the fetal, newborn, and adult heart. Am. J. Physiol. 222(5) : 1285-l 290. 1972.-A marked paucity of information exists concerning the physiological characteristics of the developing heart. The purpose of the present investigation was to analyze and compare the compliance of the right and left vent...

We carefully analyze the WFPC2 and STIS images of GRB970228. We measure magnitudes for the GRB970228 point source component in the WFPC2 images of V = 26.20 −0.13, Ic = 23.94 +0.10 −0.09 and V = 26.52 +0.16 −0.18, Ic = 24.31 +0.15 −0.11 on March 26 and April 7, respectively; and Rc = 27.09 +0.14 −0.14 on September 4 in the STIS image. For the extended component, we measure magnitudes of Rc = 25...