Sick of work or too sick to work? Evidence on health shocks and early retirement from the BHPS

We follow individuals as they retire using discrete-time hazard models applied to a stock sample from 12 waves of the British Household Panel Survey. Results confirm that health shocks are a determinant of retirement age and are quantitatively more important than pension entitlement. This is the case for both men and women and is observed for both a measure of health limitations and a measure of latent health status obtained from a generalized ordered probit model. Further, our results provide evidence that, for women, the health status of their partner impacts on their retirement decisions; an effect that is not evident for men

Spatial and temporal variations in growth rates along active normal fault Systems: an example from the Lazio-Abruzzo Apennines, central Italy

The geometry, kinematics and rates of active extension in Lazio\u2013Abruzzo, Italian Apennines, have been measured in order to gain a better understanding of the spatial and temporal variations in fault growth rates and seismic hazards associated with active normal fault systems. We present fault map traces, throws, throw-rates and slip-directions for 17 parallel, en e\ub4chelon or end-on active normal faults whose 20\u2013 40 km lengths combine to form a soft-linked fault array ca. 155 km in length and ca. 55 km across strike. Throw-rates derived from observations of faulted late-glacial features and Holocene soils show that both maximum throw-rates and throw-rate gradients are greater on centrally-located faults along the strike of the array; total throws and throw gradients show similar spatial variations but with weaker relationships with distance along strike. When summed across strike, throw-rates are increasingly high towards the centre of the array relative to summed throws. We interpret the above to suggest that throw-rates have changed in the recent past (ca. 0.7 Ma) from spatially-random fault growth rates (initiating at 2.5\u20133.3 Ma) to growth rates that are greater on centrally-located faults. We interpret this as evidence for fault interaction producing throw-rate variations that drive throw profile readjustment on these crustal scale soft-linked faults. The results are used to discuss seismic hazards in the region, which are quantified in a second paper in this issue

The “broken escalator” phenomenon: Vestibular dizziness interferes with locomotor adaptation

BACKGROUND: Although vestibular lesions degrade postural control we do not know the relative contributions of the magnitude of the vestibular loss and subjective vestibular symptoms to locomotor adaptation. OBJECTIVE: To study how dizzy symptoms interfere with adaptive locomotor learning. METHODS: We examined patients with contrasting peripheral vestibular deficits, vestibular neuritis in the chronic stable phase (n = 20) and strongly symptomatic unilateral Meniere’s disease (n = 15), compared to age-matched healthy controls (n = 15). We measured locomotor adaptive learning using the “broken escalator” aftereffect, simulated on a motorised moving sled. RESULTS: Patients with Meniere’s disease had an enhanced “broken escalator” postural aftereffect. More generally, the size of the locomotor aftereffect was related to how symptomatic patients were across both groups. Contrastingly, the degree of peripheral vestibular loss was not correlated with symptom load or locomotor aftereffect size. During the MOVING trials, both patient groups had larger levels of instability (trunk sway) and reduced adaptation than normal controls. CONCLUSION: Dizziness symptoms influence locomotor adaptation and its subsequent expression through motor aftereffects. Given that the unsteadiness experienced during the “broken escalator” paradigm is internally driven, the enhanced aftereffect found represents a new type of self-generated postural challenge for vestibular/unsteady patients

Presenteeism in the UK : effects of physical and mental health on worker productivity

Poor health in the workforce is costly to employers and the economy. This is partly due to health problems causing people to spend less time at work but is also due to people being less productive while at work. In this paper, we investigate the causes of presenteeism, defined as reduced productivity at work due to health problems. This is the first study to estimate the extent of presenteeism in the UK workforce as a whole. We assess the extent to which physical and mental health affect people’s ability to do their job effectively and seek to expose some of the ‘hidden’ costs of ill health on the UK economy. We find that both physical and mental health significantly predict the probability of presenteeism. These effects persist in a longitudinal framework, such that a worsening of health over time significantly increases the probability of presenteeism; and the effects of mental health problems seem to be worse than physical health. In comparison, changes to other characteristics, such as work circumstances, have little or no effect on presenteeism, with the exception of perceived job security. However, being in part time work and having autonomy over work tasks both significantly reduce the effect of mental health on presenteeism, suggesting that conducive working conditions can help to mitigate the negative impact of health on productivity

Book Reviews

Reviews of the following books: Confederates Downast by Mason Philip Smith; The Source: A Guidebook of American Genealogy by Arlene Eakle and Johni Cern

Looking into the matter of light-quark hadrons

In tackling QCD, a constructive feedback between theory and extant and forthcoming experiments is necessary in order to place constraints on the infrared behaviour of QCD's \beta-function, a key nonperturbative quantity in hadron physics. The Dyson-Schwinger equations provide a tool with which to work toward this goal. They connect confinement with dynamical chiral symmetry breaking, both with the observable properties of hadrons, and hence provide a means of elucidating the material content of real-world QCD. This contribution illustrates these points via comments on: in-hadron condensates; dressed-quark anomalous chromo- and electro-magnetic moments; the spectra of mesons and baryons, and the critical role played by hadron-hadron interactions in producing these spectra.Comment: 11 pages, 7 figures. Contribution to the Proceedings of "Applications of light-cone coordinates to highly relativistic systems - LIGHTCONE 2011," 23-27 May, 2011, Dallas. The Proceedings will be published in Few Body System

(No) dynamical constraints on the mass of the black hole in two ULXs

We present the preliminary results of two Gemini campaigns to constrain the mass of the black hole in an ultraluminous X-ray source (ULX) via optical spectroscopy. Pilot studies of the optical counterparts of a number of ULXs revealed two candidates for further detailed study, based on the presence of a broad He II 4686 Å emission line. A sequence of 10 long-slit spectra were obtained for each object, and the velocity shift of the ULX counterpart measured. Although radial velocity variations are observed, they are not sinusoidal, and no mass function is obtained. However, the broad He II line is highly variable on timescales shorter than a day. If associated with the reprocessing of X-rays in the accretion disc, its breadth implies that the disc must be close to face-on

Employment related COVID-19 exposure risk among disabled people in the UK

We provide new evidence about the work-related exposure of disabled people to COVID-19 using household survey data combined with a novel occupational risk indicator. Despite their higher clinical vulnerability, disabled people in employment in the UK were significantly more likely to be going out to work during the pandemic rather than working from home, and were working in occupations that were more exposed to COVID-19 than the occupations of non-disabled workers. Our results raise questions about whether there are sufficient safeguards for disabled people in the workplace, and have longer-term implications for a labour market where COVID-19 is a persistent health issue