For example, prions originating from sheep appear to be, as far as we know, innocuous for humans, whereas BSE prions are highly promiscuous and can cause disease in many different hosts ...

Staining with a highly rated stain from brands like Behr, Olympic, and Valspar can spruce up and protect wood. We spend 3 ...

Negative staining is a powerful preparative method for studying particulate specimens. In principle, the specimen is surrounded by heavy metal atoms that act as an electron barrier. Because the ...