The hindered internal rotations around the partial carbon-carbon double bond, nitrogen-carbon and carbon-carbon single bonds within the 2-(2-chloro-phenothiazine-l-yl)-3-(triphenylphosphoranylidene) butandioate has been experimentally studied by the dynamic H NMR spectroscopic in variable temperatures. The activation (∆H, ∆S, ∆G) and kinetic (kc, Ea) parameters have been calculated in a series ...

A combination of emetine hydrochloride with chloroquine yields better results than either drug alone in the treatment of amoebic liver abscess in adults (Wilmot, Powell, and Adams, 1959). A similar combination of dehydroemetine with chloroquine is equally satisfactory (Wilmot, Powell, MacLeod, and Elsdon-Dew, 1964; Powell, Wilmot, MacLeod, and Elsdon-Dew, 1967). Dehydroemetine is claimed to be ...

We consider the problem of constructing a C1 piecewise quadratic interpolant, Q, to positional and gradient data defined at the vertices of a tessellation of n-simplices in IR. The key to the interpolation scheme is to appropriately subdivide each simplex to ensure that certain necessary geometric constraints are satisfied by the subdivision points. We establish these constraints using the Bern...