We present the results from the spectral analysis of the time-average spectrum of the Narrow Line Seyfert 1 (NLS1) galaxy Ark 564 from a ∼ 100 ks XMM-Newton observation.

In a series of 7 cases of acute aphakic pupil block glaucoma a surgical approach designed to break adhesions between the iris and the anterior hyaloid face was uniformly successful. Reasons for the success of the method are discussed and comparisons made with other surgical approaches.

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Small angle X-ray scattering (SAXS) is a potentially powerful method for obtaining structural information from biological molecules in solution. The use of this technique in the laboratory has hitherto been limited by the long exposures necessary to obtain patterns on photographic film. Multi-wire area detectors, due to their high efficiency and absence of noise, enable patterns to be collected...

PURPOSE An easily recognized clinical marker for early changes of primary angle closure glaucoma (PACG) or eyes predisposed to angle closure is important so that timely laser iridotomy can prevent morbidity. Pupillary ruff changes, specifically appearance of entropion uveae (EU), are frequent in eyes with PACG. METHODS Pupillary ruff was examined under magnification and EU, if present, was gr...

improve the procedure, and it may be that we shall also have to change some of our concepts. But the chief purpose of this paper will be fulfilled even if the hypothesis and the calculations which I have presented are erroneous, for my principal aim is to show that an efficient prevention of glaucomatous field damage is only possible by a quantitative determination of visual field sensitivity a...

We propose a cross polarization (CP) sequence effective under magic-angle spinning (MAS) which is tolerant to RF field inhomogeneity and Hartmann-Hahn mismatch. Its key feature is that spin locking is not used, as CP occurs among the longitudinal (Z) magnetizations modulated by the combination of two pulses with the opposite phases. We show that, by changing the phases of the pulse pairs synchr...