178 research outputs found
Communicating learning: evaluating the learning experience of distance learning students
Drawing upon research into studentsâ perceptions of their learning experience as distance learners, this paper explores what works well and what doesnât. How to more effectively support the learning process through better directive and interactive communication emerges as a key theme
Barriers and Contradictions in the Resettlement of Single Homeless People
Research in one local authority area suggests that a number of social policy difficulties and contradictions need to be resolved if single homeless people are to be resettled effectively. In particular, there are competing pressures on social housing providers, who are expected to meet the needs of socially excluded individuals while also creating sustainable communities and operating in a cost efficient manner. The government needs to clarify that meeting housing need is a priority for social landlords, and provide adequate funding for long-term support, if single homeless people are to find appropriate permanent accommodation
Consumer Access to Justice: The Role of the ADR Directive and the Member States
This article takes it to be vital to decide whether the Alternative Dispute Resolution (ADR) Directive provides a version of access to justice that is suitably sensitive to the consumer market. The Directive is deficient in this regard, at least to the extent that it does not make ADR processes mandatory or binding for businesses. Nevertheless, if Member States choose mandatory and binding processes, this may be compatible with the fundamental right to judicial protection, if emphasis is placed on efficiency benefits. If they choose voluntary processes/non-binding decisions, success will depend partly on incentives, sanctions, and monitoring at EU and Member State levels
Comparison Between Standard HABIT and HABIT-VR: Hand-Arm Function and Patient Acceptability Differencesâ
https://digitalcommons.unmc.edu/surp2022/1002/thumbnail.jp
Healthy Lifestyle in the Primordial Prevention of Cardiovascular Disease Among Young Women
AbstractBackgroundOverall mortality rates from coronary heart disease (CHD) in the United States have declined in recent decades, but the rate has plateaued among younger women. The potential for further reductions in mortality rates among young women through changes in lifestyle is unknown.ObjectivesThe aim of this study was to estimate the proportion of CHD cases and clinical cardiovascular disease (CVD) risk factors among young women that might be attributable to poor adherence to a healthy lifestyle.MethodsA prospective analysis was conducted among 88,940 women ages 27 to 44 years at baseline in the Nursesâ Health Study II who were followed from 1991 to 2011. Lifestyle factors were updated repeatedly by questionnaire. A healthy lifestyle was defined as not smoking, a normal body mass index, physical activity ℠2.5 h/week, television viewing †7 h/week, diet in the top 40% of the Alternative Healthy Eating Indexâ2010, and 0.1 to 14.9 g/day of alcohol. To estimate the proportion of CHD and clinical CVD risk factors (diabetes, hypertension, and hypercholesterolemia) that could be attributed to poor adherence to a healthy lifestyle, we calculated the population-attributable risk percent.ResultsDuring 20 years of follow-up, we documented 456 incident CHD cases. In multivariable-adjusted models, nonsmoking, a healthy body mass index, exercise, and a healthy diet were independently and significantly associated with lower CHD risk. Compared with women with no healthy lifestyle factors, the hazard ratio for CHD for women with 6 lifestyle factors was 0.08 (95% confidence interval: 0.03 to 0.22). Approximately 73% (95% confidence interval: 39% to 89%) of CHD cases were attributable to poor adherence to a healthy lifestyle. Similarly, 46% (95% confidence interval: 43% to 49%) of clinical CVD risk factor cases were attributable to a poor lifestyle.ConclusionsPrimordial prevention through maintenance of a healthy lifestyle among young women may substantially lower the burden of CVD
Partition Functions of Non-Abelian Quantum Hall States
Partition functions of edge excitations are obtained for non-Abelian Hall
states in the second Landau level, such as the anti-Read-Rezayi state, the
Bonderson-Slingerland hierarchy and the Wen non-Abelian fluid, as well as for
the non-Abelian spin-singlet state. The derivation is straightforward and
unique starting from the non-Abelian conformal field theory data and solving
the modular invariance conditions. The partition functions provide a complete
account of the excitation spectrum and are used to describe experiments of
Coulomb blockade and thermopower.Comment: 42 pages, 3 figures; published version; minor corrections to sect.
4.
The evolution of the Milky Way's thin disc radial metallicity gradient with K2 asteroseismic ages
The radial metallicity distribution of the Milky Way's disc is an important
observational constraint for models of the formation and evolution of our
Galaxy. It informs our understanding of the chemical enrichment of the Galactic
disc and the dynamical processes therein, particularly radial migration. We
investigate how the metallicity changes with guiding radius in the thin disc
using a sample of red-giant stars with robust astrometric, spectroscopic and
asteroseismic parameters. Our sample contains stars with guiding radii
kpc < < kpc and asteroseismic ages covering the whole
history of the thin disc with precision . We use MCMC analysis to
measure the gradient and its intrinsic spread in bins of age and construct a
hierarchical Bayesian model to investigate the evolution of these parameters
independently of the bins. We find a smooth evolution of the gradient from
dex/kpc in the youngest stars to dex/kpc in
stars older than Gyr, with no break at intermediate ages. Our results are
consistent with those based on asteroseismic ages from CoRoT, with that found
in Cepheid variables for stars younger than Gyr, and with open clusters for
stars younger than Gyr. For older stars we find a significantly lower
metallicity in our sample than in the clusters, suggesting a survival bias
favouring more metal-rich clusters. We also find that the chemical evolution
model of Chiappini (2009) is too metal-poor in the early stages of disc
formation. Our results provide strong new constraints for the growth and
enrichment of the thin disc and radial migration, which will facilitate new
tests of model conditions and physics.Comment: 15 pages, 16 figures. Accepted for publication in MNRA
Composite Fermion Wavefunctions Derived by Conformal Field Theory
The Jain theory of hierarchical Hall states is reconsidered in the light of
recent analyses that have found exact relations between projected Jain
wavefunctions and conformal field theory correlators. We show that the
underlying conformal theory is precisely given by the W-infinity minimal models
introduced earlier. This theory involves a reduction of the multicomponent
Abelian theory that is similar to the projection to the lowest Landau level in
the Jain approach. The projection yields quasihole excitations obeying
non-Abelian fractional statistics. The analysis closely parallels the bosonic
conformal theory description of the Pfaffian and Read-Rezayi states.Comment: 4 pages, 1 figur
Effect of unbalanced topography and overloading on Coulomb wedge kinematics: Insights from sandbox modeling
Investigating Gaia EDR3 parallax systematics using asteroseismology of Cool Giant Stars observed by Kepler, K2, and TESS I. Asteroseismic distances to 12,500 red-giant stars
Gaia EDR3 has provided unprecedented data that generate a lot of interest in
the astrophysical community, despite the fact that systematics affect the
reported parallaxes at the level of ~ 10 muas. Independent distance
measurements are available from asteroseismology of red-giant stars with
measurable parallaxes, whose magnitude and colour ranges more closely reflect
those of other stars of interest. In this paper, we determine distances to
nearly 12,500 red-giant branch and red clump stars observed by Kepler, K2, and
TESS. This is done via a grid-based modelling method, where global
asteroseismic observables, constraints on the photospheric chemical
composition, and on the unreddened photometry are used as observational inputs.
This large catalogue of asteroseismic distances allows us to provide a first
comparison with Gaia EDR3 parallaxes. Offset values estimated with
asteroseismology show no clear trend with ecliptic latitude or magnitude, and
the trend whereby they increase (in absolute terms) as we move towards redder
colours is dominated by the brightest stars. The correction model proposed by
Lindegren et al. (2021) is not suitable for all the fields considered in this
study. We find a good agreement between asteroseismic results and model
predictions of the red clump magnitude. We discuss possible trends with the
Gaia scan law statistics, and show that two magnitude regimes exist where
either asteroseismology or Gaia provides the best precision in parallax.Comment: 11 pages, 8 figures, Accepted for publication in A&
- âŠ