Ransom Aldrich Myers (1952–2007)

Ransom for rainforests

Throughout history, mankind has regarded the wilderness as an unlimited resource that can be plundered for food, firewood, and expansion of arable land. While some island nations (including, as we have learned from recent news, Haiti) have already suffered dire consequences from deforestation, the consequences of the loss of wilderness on a global scale were only recognised late in the twentiet...

Myers Effect and Tachyon Condensation

D0-branes are unstable in the presence of an R-R field strength background. A fuzzy twosphere is classically stable under such a background, this phenomenon being called the Myers effect. We analyze this effect from the viewpoint of tachyon condensation. It is explicitly shown that a fuzzy two-sphere is realized by the condensation of tachyons which appear from strings connecting different D0-b...

Bristol-myers Squibb Company

On extensions of Myers' theorem

Let M be a compact Riemannian manifold and h a smooth function on M. Let h (x) = inf jvj=1 (Ric x (v; v) ? 2Hess(h) x (v; v)). Here Ric x denotes the Ricci curvature at x and Hess(h) is the Hessian of h. Then M has nite fundamental group if h ? h < 0. Here h =: + 2L rh is the Bismut-Witten Laplacian. This leads to a quick proof of recent results on extension of Myers' theorem to mani-folds with...

Reply to Myers et al.

The authors agree with Myers et al. [1] that biodegradable materials represent a useful alternative in the management of tricuspid valve endocarditis repair. Our statement of dividing tricuspid valve repair choices in prosthetic and non-prosthetic techniques adequately sets the main cornerstones of surgical therapy: first, minimizing, as much as possible, the resulting valve regurgitation follo...