The rovibrational distribution of H2 and HD formed on a graphite surface at 15-50 K.

The rotational distributions of H2 and HD formed on a highly oriented pyrolitic graphite surface at temperatures of 15-50 K have been measured using laser spectroscopy. The population of the rovibrational levels nu=1, J=0-4 and nu=2, J=0-4 has been observed and the average rotational temperatures of the nascent H2 and HD molecules have been determined. We find that the average rotational temperature of the newly formed molecules is much higher than the surface temperature on which they have formed.

Transthoracic echocardiographic guidance of transcatheter atrial septal defect closure.

This study examines the safety and efficacy of transthoracic echocardiographic (TTE) guidance of atrial septal defect (ASD) device closure. We evaluated 74 patients for TTE-guided ASD closure. Fifty-six patients had successful device implantation using TTE guidance.

Affluence of the Recipient, Value of Donations, and Sharing Behavior in Preschool Children.

Twenty-eight four-year-old and 28 five- and six-year-old subjects were presented with either poor or rich recipients. The recipients were defined visually with a picture of the type of home they lived in and verbally with a brief story. All subjects were asked to share from 17 units of each of two types of candy, one of low and the other of high value.