SY10-4 * RESEARCH STUDIES AT THE NRC

A closer look at the latest NRC patient release guidance.

T he Nuclear Regulatory Commission (NRC) in May 2008 issued new guidance to medical licensees relative to the post–radioiodine therapy release of individuals likely to come in contact with infants and/or young children (see the NRC press release reproduced on the facing Newsline page). A careful reading of the press release, the Regulatory Issue Summary (RIS) to which it refers, and the Federal...

New National Research Council (NRC) Beef Cattle Requirements - Range Application

Acoustical Studies of Some Derivatives of 4-Amino Benzoic Acid in 1, 4-Dioxane and Dimethyl Formamide at 308.15 K

The ultrasonic velocity, density and viscosity of some Schiff bases of 4-amino benzoic acid  were measured in 1,4-dioxane and dimethylformamide at 308.15 K. Various acoustical properties such as isentropic compressibility (ks), Rao’s molar sound function (Rm), the Van der Waals constant (b), molar compressibility (W), inter molecular free len...

Conducting Sound Ecological Studies at the Landscape Scale: Research Challenges

Landscape ecology is maturing as both a traditional natural science and an integrative field. It strives to meet the demands of traditional science through incremental scientific achievements realized via experimentation and hypothesis testing, while working at scales not conducive to the paradigm of controlled experiments. At the same time, landscape ecology is the intersection of many older s...

Ac-dc Current Transfer Standards and Calibrations at Nrc

This paper describes efforts undertaken to upgrade ac-dc current transfer standards and calibrations at the National Research Council of Canada. The ac-dc current transfer comparator has been redesigned, using guarding techniques most advantageous for the current shunt comparisons. A set of coaxial shunts for currents between 10 mA and 10 A has been built, and characterized up to 100 kHz by a s...