The armaticity of 5 methylcytosine tautomers in the gas phase has been studied and the chemical structures of related tautomers are investigated . The electronic energy, enthalpy and free energy of each tautomer are also estimated at the B3LYP/6-31 G* // B3LYP/6-31 G* and MP2 / 6-31 G* // MP2 / 6-31 G* Levels

Research has focussed on the impact that factors such as IT, marketplace process design and competition have on electronic marketplace performance. However, such research has neglected the impact of ownership upon the performance of an electronic marketplace. This paper explores the issue of ownership in electronic marketplaces and derives a broad, multi-faceted perspective of ownership, incorp...

We report measurement of the inelastic and elastic collision rates for Sr atoms in the (5s5p)3P0 state in a crossed-beam optical dipole trap. This is the first measurement of ultracold collision properties of a 3P0 level in an alkaline-earth atom or atom with similar electronic structure. Since the (5s5p)3P0 state is the lowest level of the triplet manifold, large loss rates indicate the import...

I review the main theoretical conclusions from high-energy spectral observations of Galactic Black Hole Candidate systems. With an eye towards future missions, I show how the ability to reach such conclusions depends critically on the type of spectral coverage one has available. Perhaps the most important factor in determining how well a set of observations constrains theoretical models is the ...

High-assurance systems with multiple security levels use data filters to facilitate the safe flow of information from higher to lower classification levels. Since filters play a critical security role, they must be formally verified. However, a wide range of sanitization strategies has been developed to address the wide variety of data content and contexts that arise in practice. As the diversi...

Highly frustrated lattices yield a completely flat lowest single-electron band. Remarkably, exact many-body ground states can be constructed for the repulsive Hubbard model and the t − J model by filling this flat band with localized electron states. This construction leads to a macroscopic ground-state degeneracy. We discuss how to compute these ground-state degeneracies for a certain class of...

Research has focussed on the impact that factors such as IT, marketplace process design and competition have on electronic marketplace performance. However, such research has neglected the impact of ownership upon the performance of an electronic marketplace. This paper explores the issue of ownership in electronic marketplaces and derives a broad, multi-faceted perspective of ownership, incorp...

The goals of the U.S. Federal PKI are to create a cross-governmental, ubiquitous, interoperable Public Key Infrastructure and the development and use of applications which employ that PKI in support of Agency business processes. In addition, the U.S. Federal PKI must interoperate with State governments and with other national governments. Our goals recognize that the purpose of deploying a PKI ...