Browsing by Title
Now showing items 1649-1668 of 24089
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Axions and the white dwarf luminosity function
(2009)The evolution of white dwarfs can be described as a simple cooling process. Recently, it has been possible to determine with an unprecedented precision their luminosity function, that is, the number of stars per unit volume ... -
Axisymmetry in protoplanetary nebulae - II : A near-infrared imaging polarimetric survey
(2005)In an imaging polarimetry survey of candidate post-AGB stars, scattering envelopes are detected around 20 objects. These envelopes represent the final mass-loss phases at the end of the AGB. In all cases, evidence for ... -
Axisymmetry in protoplanetary nebulae: using imaging polarimetry to investigate envelope structure
(2001-04)We use ground-based imaging polarimetry to detect and image the dusty circumstellar envelopes of a sample of proto-planetary nebulae (PPNe) at near-infrared wavelengths. This technique allows the scattered light from the ... -
Azad: Design and Practice
(Glyphi, 2018-01-09) -
Azimuthal variations of gas-phase oxygen abundance in NGC 2997
(2018-10-15)The azimuthal variation of the HII region oxygen abundance in spiral galaxies is a key observable for understanding how quickly oxygen produced by massive stars can be dispersed within the surrounding interstellar medium. ... -
Azithromycin : An assessment of its pharmacokinetics and therapeutic potential in CAPD
(2001)◆ Background: Azithromycin is an azalide antibiotic with a similar antibacterial spectrum to erythromycin but with greater gram-negative activity. Azithromycin displays a favorable pharmacokinetic profile, with improved ... -
Azole fungicide sensitivity and molecular mechanisms of reduced sensitivity in Irish Pyrenopeziza brassicae populations
(2022-10-09)BACKGROUND: Light leaf spot, caused by Pyrenopeziza brassicae, is amongst the most damaging diseases of winter oilseed rape(Brassica napus), and currently the sterol 14⊍-demethylase (CYP51) inhibitors (azoles) represent ... -
Azole sensitivity in Leptosphaeria pathogens of oilseed rape: the role of lanosterol 14α-demethylase
(2017-11-20)Lanosterol 14-α demethy lase is a key enzyme intermediating the biosynthesis of ergosterol in fungi, and the target of azole fungicides. Studies have suggested that Leptosphaeria maculans and L. biglobosa, the causal ... -
AzTEC 1.1 mm observations of high-z protocluster environments : SMG overdensities and misalignment between AGN jets and SMG distribution
(2018-10)We present observations at 1.1 mm towards 16 powerful radio galaxies and a radio-quiet quasar at 0.5 > z > 6.3 acquired with the AzTEC camera mounted at the James Clerk Maxwell Telescope and Atacama Submillimeter Telescope ... -
An AzTEC 1.1 mm survey of the GOODS-N field - I : Maps, catalogue and source statistics
(2008-12-01)We have conducted a deep and uniform 1.1 mm survey of the Great Observatories Origins Deep Survey-North (GOODS-N) field with AzTEC on the James Clerk Maxwell Telescope. Here, we present the first results from this survey ... -
An AzTEC 1.1 mm survey of the GOODS-N field - II : Multiwavelength identifications and redshift distribution
(2009-10-01)We present results from a multiwavelength study of 29 sources (false detection probabilities -
An AzTEC 1.1-mm Survey for ULIRGs in the field of the Galaxy Cluster MS 0451.6-0305
(2010)We have undertaken a deep (sigma~1.1 mJy) 1.1-mm survey of the z=0.54 cluster MS 0451.6-0305 using the AzTEC camera on the James Clerk Maxwell Telescope. We detect 36 sources with S/N>3.5 in the central 0.10 deg^2 and ... -
AzTEC half square degree survey of the SHADES fields - II : Identifications, redshifts and evidence for large-scale structure
(2012-11-01)The Astronomical Thermal Emission Camera (AzTEC) 1.1mm survey of the two SCUBA HAlf Degree Extragalactic Survey (SHADES) fields is the largest (0.7 deg ) blank-field millimetre-wavelength (mm-wavelength) survey undertaken ... -
AzTEC half square degree survey of the SHADES fields – I : Maps, catalogues and source counts
(2010)We present the first results from the largest deep extragalactic mm-wavelength survey undertaken to date. These results are derived from maps covering over 0.7 deg2, made at λ= 1.1 mm , using the AzTEC continuum camera ... -
The B+ Hypothesis: strength through adversity in sports coaching?
(2008)Some years ago whilst gathering research interview data from athletics coaches I came across the following quote in regards to the achievement of athletic potential: It is often the B+ people, not the A’s who will eventually ... -
B-CCD: a framework to enable SMEs to make business-critical computing decisions
(University of Hertfordshire, 1997)This paper reports the first cycle of action research to develop the B-CCD (Business-Critical Computing Decisions) framework which has been designed to support SMEs in developing IS/IT strategies. The framework combines ... -
B-fields in Star-Forming Region Observations (BISTRO) : Magnetic Fields in the Filamentary Structures of Serpens Main
(2022-02-22)We present 850 $\mu$m polarimetric observations toward the Serpens Main molecular cloud obtained using the POL-2 polarimeter on the James Clerk Maxwell Telescope (JCMT) as part of the B-fields In STar-forming Region ... -
The B-type giant HD 271791 in the Galactic halo : Linking run-away stars to hyper-velocity stars
(2008-05-01)Context. Young, massive stars have been found in the distant Galactic halo. Dynamical ejection from the Galactic disc has been suggested as the origin of these "run-away stars". The so-called hyper-velocity stars have been ... -
Back to the Future
(Routledge, 2015)