Using systematic tests of his hypothesis, he created the Book of Optics, a text which is foundational to medicine today. (booklistonline.com)
«Our results indicate that systematic testing for anti-androgenic activity of currently used pesticides is urgently required,» wrote the scientists from University of London's Centre for Toxicology, led by Professor Andreas Kortenkamp. (scientificamerican.com)
African elephants (Loxodonta africana) that had experienced separation from family members and translocation during culling operations decades previously performed poorly on systematic tests of their social knowledge, failing to distinguish between callers on the basis of social familiarity. (frontiersinzoology.biomedcentral.com)