Her output was extensive despite consisting of a series of major works not only large in size but calling for intensive research into sheer technicalities.
Times, Sunday Times (2014)
Plant wrote of her experience, in the little time spare from intensive research and field trips.
Times, Sunday Times (2016)
His style of investing, featuring long hours devoted to intensive research, seemed outmoded.
Times, Sunday Times (2010)
The reactivity and the nature of erionite biotoxicity has been the subject of intensive research.
Matteo Giordani, Georgia Cametti, Fulvio Di Lorenzo, Sergey V. Churakov 2019, 'Real-Time Observation of Fibrous Zeolites Reactivity in Contact with Simulated Lung Fluids (SLFs) Obtained by Atomic Force Microscope (AFM)', Minerals