PURPOSE To evaluate different clinical variants of pseudoexfoliation syndrome and their risk of developing ocular hypertension (OHT) or glaucoma (PXG). DESIGN Cross sectional hospital based study. SETTING All patients seen at glaucoma services of a tertiary eye care center in east India. METHODS Electronic medical records search of hospital database including consecutive new and old cases...

The electronic gas-phase absorption spectrum of the bent carbon-chain radical, HC(4)CHC(6)H with C(s) symmetry, is recorded in the 595 nm region by cavity ring-down spectroscopy through an expanding hydrogen plasma. An unambiguous spectroscopic identification becomes possible from a systematic deuterium labeling experiment. A comparison of the results with recently reported spectra of the nonli...

In this paper the effect of bias and geometric symmetry breaking on the electronic spectrum of a model molecular system is studied. Geometric symmetry breaking can either enhance the dissipative effect of the bias, where spectral peaks are disabled, or enable new excitations that are absent under zero bias conditions. The spectral analysis is performed on a simple model system by solving for th...

The B (2)Phi(5/2)-X(1) (2)Delta(3/2)(0,0) band at 778 nm and the C (2)Delta(3/2)-X(1) (2)Delta(3/2)(0,0) band at 737 nm of tantalum oxide (TaO) were recorded by laser excitation spectroscopy using a hollow cathode sputtering source to generate the molecules. The hyperfine structure arising from the (181)Ta (I=72) nucleus was measured at sub-Doppler resolution using the technique of intermodulat...

Ab initio configuration interaction calculations of the ground and singlet A' and A " excited states have been performed, with all possible single and double excitations from the 10 highest occupied orbitals to the lowest 17 virtual Orbitals being included, the previous C s symmetry molecular structure being used. Some of the states can be identified with excitation f rom individual occupied (S...

Inelastic light scattering from Dirac-type electrons in graphene is shown to be dominated by the generation of the interband electronic modes which are odd in terms of time-inversion symmetry and belong to the irreducible representation A2 of the point group C6v of the honeycomb crystal. At high magnetic fields, these electron-hole excitations appear as peculiar n−→n+ inter-Landau-level modes w...

The A(2)Πg ← X(2)Πu electronic transition (4800-6000 Å) of triacetylene cation was measured in an ion trap, where the vibrational and rotational degrees of freedom were equilibrated to 25 K. The rotational profile of the origin band is predicted by a collisional-radiative rate model under conditions expected in diffuse interstellar clouds. Variation in the density of the surrounding gas, rotati...

One of the prototype compounds for metal-metal multiple bonding, the Re(2)Cl(8)(2)(-) ion, has been studied theoretically using multiconfigurational quantum chemical methods. The molecular structure of the ground state has been determined. It is shown that the effective bond order of the Re-Re bond is close to three, due to the weakness of, in particular, the delta bond. The electronic spectrum...

The electronic spectrum of sheets of graphite (plane honeycomb lattice) folded into regular polihedra is studied. A continuum limit valid for sufficiently large molecules and based on the tight binding approximation is derived. It is found that a Dirac equation describes the flat grafite lattice. Curving the lattice by insertion of odd numbered rings can be mimicked by coupling effective gauge ...

Andrew Dick, Hedayat Rahemi, Elmars R. Krausz, Graeme R. Hanson, and Mark J. Riley School of Molecular and Microbial Sciences, University of Queensland, St. Lucia, Queensland 4072, Australia Chemistry Department, Urmia University, Urmia 57159-165, Iran Research School of Chemistry, Australian National University, Canberra 0200, Australia Centre for Magnetic Resonance, University of Queensland, ...