Effect of ultrasound on the neonatal rat brain.

Six-day-old rat neonates were exposed to 2.25 MHz continuous wave (CW) ultrasound for 5 min at an intensity of 2.5 W/cm2 (SATA).

Reversible biochemical changes in the developing rat central nervous system following ultrasound exposure.

Rat embryos in utero at 10 days of gestation (gd) were exposed to the intensity of 2.5 W/cm2 (SATA) of 1 MHz continuous-wave ultrasound for 5 min. The right uterine horn was exteriorized, exposed to the ultrasound beam, and then reinserted into the abdominal cavity.

Biochemical changes in the developing rat central nervous system due to hyperthermia.

Rat embryos at 10 days of gestation were exposed to 43 degrees C for 8 minutes by submerging the exteriorized right uterine horn in heated saline solution and then reinserting the uterine horn into the abdominal cavity. At 15 days, the fetuses were removed, and cells from the cerebral hemispheres were dissociated and grown as primary cultures. Embryos from the left uterine horn served as controls.

Noninvasive ambulatory blood pressure control in normotensive pregnant women.

Twenty-four hour noninvasive, automatic and ambulatory control of blood pressure (BP) was carried out on 11 normotensive pregnant women in the third trimester of pregnancy with a Del Mar Avionics Model 1978 Pressurometer III System at 7.5 min intervals during 24 h. The patients kept a detailed record of their activities during those 24 h.

Productivity management: a model for participative management in health care organizations.

The current cost of inflation in the health care industry, contributed to in part by the Medicare and Medicaid legislation, has created concerns for productivity that can no longer be ignored by health care administrators. Despite these concerns and in the face of increasingly scarce resources, many hospitals have not yet established productivity tracking systems or methods for measuring and analyzing potential areas for productivity improvement.