31,027 research outputs found
Unsung heroes: Constituency election agents in British general elections
Despite their central role in the electoral process, constituency agents have been largely overlooked by political scientists and this article seeks to rectify the omission. It sketches the origins and development of the role of agent from the late 19th century and suggests that a serious rethink of the role took place in the 1990s. Survey-based evidence about the social characteristics of agents is presented confirming that they are largely middle-aged, middle-class, well-educated men. They are also becoming more experienced, offer realistic assessments of the impact of constituency campaigning and, arguably, many take a long-term view of how their party's support can be maximised
How did the Welsh government manage to reform council tax in 2005?
Repeated calls have been made for council tax (CT) in the UK to be reformed. A ‘tyranny of the status quo’ suggests that politicians will avoid this because they fear a backlash from the losers of reform. This paper claims that the tyranny of the status quo is not a fixed law. The Welsh government revalued CT in 2005 but did not communicate the complexity of reform sufficiently. Reform requires greater efforts to communicate the complexity of winning and losing
The Mid-infrared Fine-structure Lines of Neon as an Indicator of Star For mation Rate in Galaxies
The fine-structure lines of singly ([Ne II] 12.8 micron) and doubly ([Ne III]
15.6 micron) ionized neon are among the most prominent features in the
mid-infrared spectra of star-forming regions, and have the potential to be a
powerful new indicator of the star formation rate in galaxies. Using a sample
of star-forming galaxies with measurements of the fine-structure lines
available from the literature, we show that the sum of the [Ne II] and [Ne III]
luminosities obeys a tight, linear correlation with the total infrared
luminosity, over 5 orders of magnitude in luminosity. We discuss the formation
of the lines and their relation with the Lyman continuum luminosity. A simple
calibration between star formation rate and the [Ne II]+[Ne III] luminosity is
presented.Comment: To appear in ApJ. 8 page
It takes two to tango: Customization and standardization as colluding logics in healthcare: Comment on “(re) making the procrustean bed standardization and customization as competing logics in healthcare”
The healthcare context is characterized with new developments, technologies, ideas and expectations that are continually reshaping the frontline of care delivery. Mannion and Exworthy identify two key factors driving this complexity, ‘standardization’ and ‘customization,’ and their apparent resulting paradox to be negotiated by healthcare professionals, managers and policy makers. However, while they present a compelling argument an alternative viewpoint exists. An analysis is presented that shows instead of being ‘competing’ logics in healthcare, standardization and customization are long standing ‘colluding’ logics. Mannion and Exworthy’s call for further sustained work to understand this complex, contested space is endorsed, noting that it is critical to inform future debates and service decisions
Numerical Evidence for the Observation of a Scalar Glueball
We compute from lattice QCD in the valence (quenched) approximation the
partial decay widths of the lightest scalar glueball to pairs of pseudoscalar
quark-antiquark states. These predictions and values obtained earlier for the
scalar glueball's mass are in good agreement with the observed properties of
and inconsistent with all other observed meson resonances.Comment: 12 pages of Latex, 3 PostsScript figures as separate uufil
Casting Stones: The Role of Fault in Virginia Divorce Proceedings
The national trend is toward eliminating fault as a factor in many aspects of divorce, and in some states it plays virtually no role at all. However, Virginia is among those few remaining states where fault is potentially involved in every aspect of a divorce case
Pipeline failure prediction in water distribution networks using weather conditions as explanatory factors
This is the author accepted manuscript. The final version is available from IWA Publishing via the DOI in this recordThis paper examines the impact of weather conditions on pipe failure in water distribution networks using artificial neural network (ANN) and evolutionary polynomial regression (EPR). A number of weather-related factors over 4 consecutive days are the input of the binary ANN model while the output is the occurrence or not of at least a failure during the following 2 days. The model is able to correctly distinguish the majority (87%) of the days with failure(s). The EPR is employed to predict the annual number of failures. Initially, the network is divided into six clusters based on pipe diameter and age. The last year of the monitoring period is used for testing while the remaining years since the beginning are retained for model development. An EPR model is developed for each cluster based on the relevant training data. The results indicate a strong relationship between the annual number of failures and frequency and intensity of low temperatures. The outputs from the EPR models are used to calculate the failures of the homogenous groups within each cluster proportionally to their length.The work reported is supported by the UK Engineering & Physical Sciences Research Council (EPSRC) project Safe & SuRe (EP/K006924/1)
Quantitative spectroscopy of B-type supergiants
Context. B-type supergiants are versatile tools to address various
astrophysical topics, ranging from stellar atmospheres over stellar and
galactic evolution to the cosmic distance scale. Aims. A hybrid non-LTE
approach - line-blanketed model atmospheres computed under the assumption of
local thermodynamic equilibrium (LTE) in combination with line formation
calculations that account for deviations from LTE - is tested for quantitative
analyses of B-type supergiants with masses , characterising a
sample of 14 Galactic objects. Methods. Hydrostatic plane-parallel atmospheric
structures and synthetic spectra computed with Kurucz's Atlas12 code together
with the non-LTE line-formation codes Detail/Surface are compared to results
from full non-LTE calculations with Tlusty, and the effects of turbulent
pressure on the models are investigated. High-resolution spectra are analysed
for atmospheric parameters, using Stark-broadened hydrogen lines and multiple
metal ionisation equilibria, and for elemental abundances. Fundamental stellar
parameters are derived by considering stellar evolution tracks and Gaia EDR3
parallaxes. Interstellar reddening towards the target stars is determined by
matching model spectral energy distributions to observed ones. Results. Our
hybrid non-LTE approach turns out to be equivalent to hydrostatic full non-LTE
modelling for the deeper photospheric layers of the B-type supergiants
considered. Turbulent pressure can become relevant for microturbulent
velocities larger than 10 km s. High precision and accuracy is achieved
for all derived parameters by bringing multiple indicators to agreement
simultaneously. Abundances for chemical species (He, C, N, O, Ne, Mg, Al, Si,
S, Ar, Fe) are derived with uncertainties of 0.05 to 0.10 dex. The derived
ratios N/C vs. N/O tightly follow the predictions from Geneva stellar evolution
models.Comment: 31 pages, 24 figures, Accepted for publication in Astronomy &
Astrophysics, Data: https://doi.org/10.5281/zenodo.680256
Safe & SuRe Decision Support Tool
This is the author accepted manuscript.Engineering and Physical Sciences Research Council (EPSRC
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