- Elsevier has taken steps to strengthen its policies and practices around publishing ethics over the past decade, including introducing common approaches to conflicts of interest and ethical guidelines, requiring codes to be included in electronic submissions, and launching resources like PERK and joining COPE. - CrossCheck, Elsevier's plagiarism detection software, now screens over 400 journals and aims to ramp up screening for all submissions. - Statistics from mid-2011 show fewer ethics cases reported in physics and chemistry journals compared to the previous year, but more retractions. Common issues include plagiarism, duplicate publication, and authorship disputes. - Editors play a key role in ethics judgments, though determining author contributions or research fraud can