0:32 Protected areas A shortage of oxygen causes the bacteria Staphylococcus aureus to form biofilms that protect it from antibiotics.
8:01 Making medicines in yeast A drug found only in an Indian plant can be produced on a large scale in engineered yeast.
13:58 Is there gender bias in peer review? Female researchers are less likely to be invited to review scientific papers.
22:43 Synchronising brain waves Artificial stimulation of the brain can boost performance in certain memory tasks.