Reference and contact details: GB 779 RCSEd JYS 1-1884 Location: RS R1; RS R2; Plans chest Title: James Young Simpson Collection Dates of Creation: 1823-1948 Held at: The Royal College of Surgeons of Edinburgh Extent: 1884 items as at 2012. Further material in the RCSEd Museum Name of Creator: Simpson, J Y; Fergusson W; etc Language of Material: English. Some French; some Latin Level of Descrip...

The Deligne-Simpson problem (DSP) (resp. the weak DSP) is formulated like this: give necessary and sufficient conditions for the choice of the conjugacy classes Cj ⊂ GL(n,C) or cj ⊂ gl(n,C) so that there exist irreducible (resp. with trivial centralizer) (p + 1)-tuples of matrices Mj ∈ Cj or Aj ∈ cj satisfying the equality M1 . . .Mp+1 = I or A1+ . . .+Ap+1 = 0. The matrices Mj and Aj are inter...

Brown and Simpson (1993) considered two versions of the Baire Category Theorem, which they called BCT-I and BCT-II . They showed that BCT-I is provable in RCA0, the subsystem of second order arithmetic specifying some basic algebraic properties of the numbers, induction for Σ 1 sets and the recursive comprehension axiom. Additionally, they showed that BCT-II is not provable in RCA0. Brown and S...

The first anesthetic for childbirth and the first recognition of the importance of hand hygiene in obstetrics coincidentally occurred within 5 months of one another in 1847. More than 150 years later, one would have thought that these milestone events would have been fully integrated into practice. However, individuals resist transformational change, which is defined as a fundamental alteration...