We study real-time electron dynamics in a molecular junction with a variety of approximations to the electronic structure, toward the ultimate aim of determining what ingredients are crucial for the accurate prediction of charge transport. We begin with real-time, all electron simulations using some common density functionals that differ in how they treat long-range Hartree-Fock exchange. We fi...

Abstract By limiting the range of predicate variables in a second-order language, one may obtain restricted versions logic such as weak or definable subset logic. In this note, we provide an infinitary strongly complete axiomatization for several systems kind having parameter. The completeness argument uses simple techniques from theory Boolean algebras. This article is dedicated to our friend ...

A specific antigenic component in mouse leukemias induced by Friend virus has been demonstrated by cytotoxic tests in vitro. Serum from mice of several inbred strains immunized with histoincompatible Friend leukemia tissue contained antibody that was cytotoxic in vitro for leukemia cells induced by Friend virus in the strains providing the immune serum. Unexpectedly, a high proportion of mice f...

In The Sovereignty of Good' Iris Murdoch suggests that the central task of the moral agent involves a true and loving perception of another individual, who is seen as a particular reality external to the agent. Writing in the 1960s she claimed that this dimension of morality had been "theorized away" in contemporary ethics. I will argue today that 20 years later, this charge still holds true of...

A class of string backgrounds associated with non semi-simple groups is obtained as a special large level limit of ordinary WZW models. The models have an integer Virasoro central charge and they include the background recently studied by Nappi and Witten. November 1993 In this note we discuss from an algebraic point of view a class of exact conformal field theories which are based on WZW model...