'The Ascension': Blood and Roses

Free groups and roses

Consider the 2n symbols x1, . . . , xn, x−1 1 , . . . , x −1 n . Collect these into a set G. There is a map from G to itself which interchanges xi and x−1 i . This map is denoted by the usual inversion symbol g 7→ g−1. Thus x−1 i is unambiguous and (x −1 i ) −1 = xi. The empty word will be denoted by 1. A word is defined to be a finite ordered list of elements of G, depicted as exemplified by x...

Sarajevo Roses and Commemorative Plaques

The ascension of clinical organ transplantation.

D URING 1958 and 1959 at Northwestern Universitv (Chicago). we developed transplantation of the canine liver alone. I parallel to similar independent investigations in Boston hy Francis Moore.:'" The liver also was transplanted as a component of abdominal multivisceral grafts. 4 At the beginning. these were technical and physiologic exercises. because long-term survival of an organ allograft ha...

Transpiration stream & ascension of calcium.

Since Cline's report (5) of a very slow equilibration in the leaves of tritiated water absorbed by the roots of bean plants, no resolution has been made between his expressed alternative views that this was due A, to failure of tissue water to exchange with the incoming tritium-labeled water, or B, to a large isotope effect. During the preparation of the present manuscript Vartapetyan and Kursa...

The Ascension Health journey to zero: lessons learned and leadership.

BACKGROUND In 2002, Ascension Health, a 65-hospital nonprofit health care system, articulated a call to action to provide Healthcare That Works, Healthcare That Is Safe, and Healthcare That Leaves No One Behind. The goal is to provide excellent clinical care with no preventable injuries or deaths by July 2008. Just months from this target date, substantial reductions in events related to eight ...