A cobalt spot test was recently developed (1). Testing for cobalt release is performed by dipping a white cotton stick into a clear yellow cobalt test solution containing nitroso R salt, followed by rubbing of the cotton stick for 20–30 seconds against the test item. A colour change from yellow to red–orange indicates a positive test reaction. The spot test detects approximately 8 ppm cobalt in...

This research examines whether precious metals futures serve as a price discovery vehicle for spot market movement. The spot price serves as a price discovery tool for silver. The co-integration test shows that silver, futures and spot prices are co-integrated and there exists one co-integration equation. The Granger causality test shows that there is no bi-causal relationship between futures a...

Behavioral tests of animals in a controlled experimental setting provide a valuable tool to advance understanding of genotype-phenotype relations, and to study the effects of genetic and environmental manipulations. To optimally benefit from the increasing numbers of genetically engineered mice, reliable high-throughput methods for comprehensive behavioral phenotyping of mice lines have become ...

Glucose-6-phosphate dehydrogenase (G6PD) deficiency is an Background: inherited enzymatic disorder associated with severe neonatal hyperbilirubinemia and acute haemolysis after exposure to certain drugs or infections. The disorder can be diagnosed phenotypically with a fluorescent spot test (FST), which is a simple test that requires training and basic laboratory equipment. This study aimed to ...

Contrary to the traditional view that receptive fields are limited in spatial extent, recent studies have indicated that the response of neurons to a local stimulus within the receptive field can be modulated by stimulation of the surrounding region. Here we quantified the nature of these contextual effects on visual motion responses of neurons in the pigeon's optic tectum using standard extrac...

The early and accurate diagnosis of the mucopolysaccharidoses remains a problem for the clinical laboratory. Reported here is the systematic compari­ son of the ability of three common glycosaminoglycanuria screening proce­ dure (the Berry spot test, the AMES MPS® spot test, and the gross acid albumin turbidity test) to detect the mucopolysaccharidoses. These tests were run on random urine samp...