Departments View all
Publication History View all
SourceAvailable from: Robert Pyle[Show abstract] [Hide abstract]
ABSTRACT: Narrow-bore instruments are commonly perceived to be brighter than wide-bore models of the same kind of instrument. This effect is closely related to the effect of the bore profile of a brass instrument on the potential for non-linear propagation of sound within the tube. This paper reports on practical tests with trumpets of different bore diameters, experiments with loudspeaker excitation of instruments, and simulations. The brassiness curves of a range of low instruments with similar Brassiness Potential but differing in their absolute bore diameters are compared. The relative importance of the two effects is explored.
[Show abstract] [Hide abstract]
ABSTRACT: Quasars that allow the study of intergalactic medium (IGM) He ii are very rare, since they must be at high redshift along sightlines free of substantial hydrogen absorption, but recent work has dramatically expanded the number of such quasars known. We analyze two dozen higher-redshift (z = 3.1–3.9) low-resolution He ii quasar spectra from the Hubble Space Telescope and find that their He ii Gunn–Peterson troughs suggest exclusion of very early and very late reionization models, favoring a reionization redshift of z ∼ 3. Although the data quality is not sufficient to reveal details such as the expected redshift evolution of helium opacity, we obtain the first ensemble measure of helium opacity at high redshift averaged over many sightlines: τ = 4.90 at z ∼ 3.3. We also find that it would be very difficult to observe the IGM red wing of absorption from the beginning of He ii reionization, but depending on the redshift of reionization and the size of ionization zones, it might be possible to do so in some objects with the current generation of UV spectrographs.The Astrophysical Journal 08/2015; 726. DOI:10.1088/0004-637X/726/2/111
[Show abstract] [Hide abstract]
ABSTRACT: Inpatient treatment for eating disorders is a scarce, expensive resource. We aimed to examine length of stay (LOS) in specialist Scottish inpatient units and to identify relationships between LOS, outcome measures and other factors. Audit of 206 admissions (89 adolescents and 117 adults) between 2009 and 2011 to all seven inpatient units in Scotland that specialize in the treatment of eating disorders. Data was collected retrospectively from electronic database and patient case files. Physical and psychological eating disorder symptoms improved significantly during specialist inpatient admissions. Mean LOS for adolescents was 141.4 days and for adults 113.0 days. Patients gained weight during admission and increased LOS correlated with increased weight gain. Treatment under the Mental Health Act or with nasogastric feeding increased LOS in adolescents. Future efforts should be invested in prospective studies, including several years' post-discharge follow-up, to explore correlations with LOS and guide treatment decisions. Copyright © 2013 John Wiley & Sons, Ltd. Inpatient treatment in specialist eating disorder units is associated with nutritional and psychological benefits in adults and adolescents. Treatment requiring legal detention or nasogastric feeding involves longer admission. Further research is needed to see whether benefits are lasting.Clinical Psychology & Psychotherapy 01/2015; 22(1). DOI:10.1002/cpp.1865
Information provided on this web page is aggregated encyclopedic and bibliographical information relating to the named institution. Information provided is not approved by the institution itself. The institution’s logo (and/or other graphical identification, such as a coat of arms) is used only to identify the institution in a nominal way. Under certain jurisdictions it may be property of the institution.
Rg score distribution
No data available.