The results of calculations of gas emission spectra with both central and extended sources of ion-ization have been compared to the ratio of line intensities observed in the extended narrow line region of NGC1068. The origin of an extended structure of anomalous strength in the OIII]5007 and NeV ]3425 lines found by Evans & Dopita (1986) and Bergeron et al.(1989) could be due to an additional s...

We describe an accelerated density functional theory (DFT)-based computational strategy to determine trends in the decomposition of glycerol via elementary dehydrogenation, C-C, and C-O bond scission reactions on close-packed transition metal surfaces. Beginning with periodic DFT calculations on Pt(111), the thermochemistry of glycerol dehydrogenation on Pd(111), Rh(111), Cu(111) and Ni(111) is...

In the present study, the effect of Datura steramonium (DS) seed extract on acute inflammation induced by formalin injection was investigated. For this purpose, two control and treatment groups were selected and in order to induce pain, formalin (50 µl, 2.5%) was applied to the plantar surface of hind paws. In treatment group, 20-30 min before formalin injection, the DS seed extract was used i....

Evans defined quasigroups equationally, and proved a Normal Form Theorem solving the word problem for free extensions of partial Latin squares. In this paper, quasigroups are redefined as algebras with six basic operations related by triality, manifested as coupled right and left regular actions of the symmetric group on three symbols. Triality leads to considerable simplifications in the proof...

can readily be ascertained in the living subject by rendering it opaque to z-rays, as when_ a paste of barium salt is swallowed. The gullet can be made to signal changes in the shape of neighbouring organs in this way; thus, distortion of the gullet is known to happen in aneurysmal enlargement of the aorta. But this method of studying the forms of organs pressing against the gullet, and changes...

Ocean acidification is expected to have a major effect on the marine carbonate system over the next century, particularly in high latitude seas. Less appreciated is natural environmental variation within these systems, particularly in terms of pH, and how this natural variation may inform laboratory experiments. In this study, we deployed sensor-equipped moorings at 20 m depths at three locatio...

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The spectral problem associated with the linearization about solitary waves of the generalized fifth-order KdV equation is formulated in terms of the Evans function, a complex analytic function whose zeros correspond to eigenvalues. A numerical framework, based on a fast robust shooting algorithm on exterior algebra spaces is introduced. The complete algorithm has several new features, includin...

The bifurcation of internal modes from the phonon band in models supporting solitary wave solutions has been one of the exciting new phenomena in the field. We will present a number of analytical and semi-analytical techniques for the detection, study and understanding of these modes. We will see how they appear, without threshold, due to the discretization of the continuum equations. This pert...