Research into fundamental phenomena associated with spacecraft electrochemical devices - Calorimetry of nickel-cadmium cells Progress report, 1 Jul. - 30 Sep. 1968

Training of electrochemist in battery research and collecting electrochemical and thermodynamic dat

Research into fundamental phenomena associated with spacecraft electrochemical devices, calorimetry of nickel-cadmium cells Progress report, 1 Oct. - 31 Dec. 1967

Calorimetry of nickel cadmium cells for spacecraft electrochemical system

Optical-inertia space sextant for an advanced space navigation system, phase B

Optical-inertia space sextant for advanced space navigation syste

Engine restart and thermodynamic analysis of Apollo spacecraft engine tests, volume 1

Thermodynamic performance test analyses for Apollo spacecraft ascent, descent, and service propulsion system engines to define hypergol engine restart limit

On the Interpretation of Supernova Light Echo Profiles and Spectra

The light echo systems of historical supernovae in the Milky Way and local group galaxies provide an unprecedented opportunity to reveal the effects of asymmetry on observables, particularly optical spectra. Scattering dust at different locations on the light echo ellipsoid witnesses the supernova from different perspectives and the light consequently scattered towards Earth preserves the shape of line profile variations introduced by asymmetries in the supernova photosphere. However, the interpretation of supernova light echo spectra to date has not involved a detailed consideration of the effects of outburst duration and geometrical scattering modifications due to finite scattering dust filament dimension, inclination, and image point-spread function and spectrograph slit width. In this paper, we explore the implications of these factors and present a framework for future resolved supernova light echo spectra interpretation, and test it against Cas A and SN 1987A light echo spectra. We conclude that the full modeling of the dimensions and orientation of the scattering dust using the observed light echoes at two or more epochs is critical for the correct interpretation of light echo spectra. Indeed, without doing so one might falsely conclude that differences exist when none are actually present.Comment: 18 pages, 22 figures, accepted for publication in Ap

Research into fundamental phenomena associated with spacecraft electrochemical devices, calorimetry of nickel-cadmium cells Progress report, 1 Jan. - 31 Mar. 1968

Calorimetry of nickel-cadmium cell

Whole-genome sequencing and the clinician: a tale of two cities

Clinicians are faced with unprecedented opportunities to identify the genetic aetiologies of hitherto molecularly uncharacterised conditions via the use of high-throughput sequencing. Access to genomic technology and resultant data is no longer limited to clinicians, geneticists and bioinformaticians, however; ongoing commercialisation gives patients themselves ever greater access to sequencing services. We report an increasingly common medical scenario by describing two neuromuscular patients-a mother and adult son-whose consumer access to whole-genome sequencing affected their diagnostic journey

New Labour and work-time regulation: a Marxian analysis of the UK economy

This paper examines the impact of work-time regulation, introduced by the UK's New Labour governments (1997 to 2010). In doing so, we return to Marx's hypotheses regarding the length of the working day. These include the arguments that class conflict over the length of the working day is inherently distributional in a surplus-value sense and that workers often display a preference for reduced hours even with a proportionate reduction in pay. Our quantitative Marxist methodology provides a way of assessing the pattern of surplus-value before and during the period of office of the New Labour governments and the distributional effects of regulation. The impact of such regulations on workers' preferences are examined through an investigation of British Household Panel Survey data. Although many have been sceptical concerning the record of the last Labour governments, policies such as the Working Time Regulations (1998) and the Work-Life Balance Campaign (2000) are found to have been noteworthy innovations in the labour market. This is all the more important given recent moves by the successor government to weaken work-time regulation. Our results suggest the impact of these policy initiatives was broadly favourable, though the effect on men and women was different