Mathematical Sciences The research profile of the mathematics department at Brunel continues to improve, with 20% of its work classified as world-leading, in comparison to 11% the last time the REF was conducted. Of the papers submitted by our researchers, 88% were assessed as world-leading or internationally excellent. As in 2014, the department scored very highly for impact. View full results here. Statistical research fix for difficult-to-predict situations - REF impact case study Prof Yu’s disseminated modelling approaches have been used by TWI, for clients in Japan and the United Arab Emirates, to reduce their risk of catastrophic incidents REF results for physical sciences engineering and mathematics panel