In Drear-Nighted December

Optimizing DREAR and SnB parameters for determining Se-atom substructures.

The determination of the anomalous scattering substructure is the first essential step in any successful macromolecular structure determination using the multiwavelength anomalous diffraction (MAD) technique. The diffE method of calculating difference Es in conjunction with SnB has had considerable success in determining large Se-atom substructures. An investigation of the parameters used in bo...

Cover vol. 12, no. 6, December 2015

Assessment of Nuclear Moisture Density Gauges at a Secondary Standard Dosimetry Laboratory in Ghana during December 2015–December 2017

Introduction: Nuclear moisture density gauges are widely used in construction industry in different countries across the world, including Ghana, on a large scale. Like all irradiating devices, the nuclear gauges should be subjected to radiation safety assessment based on radiation protection and safety principles. Regarding this, the objective of this research was to i...

cover 16-6 December 2019

December 2012

ith the aging population and recognition that treatment of a patient’s pain is a key healthcare objective, more patients are taking pain medications that must be taken consistently to be effective. But at the same time, many of these same medications are subject to abuse. These benefits and dangers drive the need to test for patient compliance. Although urine has historically been the specimen ...