Stem cell woes

A malaria researcher in Australia had to come to the UK to discover why her stem cell cultures wouldn’t grow—a supplier who refused to acknowledge a problem with their product.

Purity of essence

Last Friday we highlighted an evaluation of a paper reporting that a lot of papers might need to be scrutinized because they used a reagent–catalase–from a particular supplier. The catalase was contaminated with a compound that affected the very thing being measured (vasodilation in the kidney). Via the magic of Twitter, we’ve learned that there…

The essence of purity

When you come to write up your lab results and publish them (whether in a journal or your dissertation), one of the things you have to do is write up how you did everything–the methods section. In fact, it’s usually a good idea to write up your methods well before this point, but that’s another…