Digital instruments sample analog waveforms and operate on the samples with the assurance that the data can be restored to continuous analog form. The sampling theorem states that a signal digitized ...

In food science and technology, quality control is a persistent challenge. Liquid foodstuffs have been characterized through the extensive use of high-resolution proton NMR spectroscopy. However, the ...

In scientific research, controls are employed as standards. By separating the control from the samples exposed to an experimental condition, such as the introduction of an analyte, the effects of the ...

Research programs using large compound or sample repositories, such as those prevalent in the drug discovery industry, require efficient management to maximize usability and minimize costs. Such ...

The image of the real SAR-CoV-2 virus, which causes COVID-19, has become ubiquitous. But creating a fake one could be a crucial part of fighting the pandemic. Credit: Shutterstock / CKA When Dr. Soo ...

A Facebook post with a picture of a positive control for a COVID-19 test misleadingly describes it as a positive test kit and suggests it may be “preloaded with the virus”. The post (here) shows a ...