An extension of the Hirsch Index: Indexing scientific topics and compounds

An interesting twist of the Hirsch index is given, in terms of an index for topics and compounds. By comparing both the hb index and m for a number of compounds and topics, it can be used to differentiate between a new so-called hot topic with older topics. This quick method is shown to help new comers to identify how much interest and work has already been achieved in their chosen area of research.Comment: Published in Scientometrics, Note added in proof, 4 page

The distribution of wealth in the population aged 50 and over in England

The tables in this paper present a description of the distribution of wealth amongst those aged 50 and over in England in 2002/3, with the analysis split by a series of different factors. These include: age, education, income, social, with the analysis split by a series of different factors. These include: age, education, income, social class, housing tenure, self-reported health and self-reported disability

Better prepared for retirement? Using panel data to improve wealth estimates of ELSA respondents

We compare the key assumptions underpinning estimates of the pension wealth of ELSA respondents to outcomes over the period from 2002–03 to 2004–05. We find that many of these assumptions have, on average, proved cautious or reasonable. Improving pension wealth calculations using this new evidence makes little difference to the distribution of pension wealth. Previous estimates of retirement resources also considered net financial, physical and housing wealth. Particularly cautious, ex-post, was the assumption that net housing wealth would remain constant in real terms. We find that average housing wealth has risen by almost 40% in nominal terms over just two years, which is in line with growth in the Nationwide House Price Index. This large increase in house prices boosts estimates of total wealth across the entire distribution of wealth. Previous research showed that once half of current net housing wealth was included as a retirement resource 12.6% of employees approaching retirement were estimated to have resources below the Pensions Commission’s definition of adequacy. We show that taking into account the high growth in house prices between 2002–03 and 2004–05 reduces this to 10.9%, and that it would fall by a further 1.2 percentage points if house prices were to grow by 2½% a year in real terms in the future

Women leadership in business based on customary land: The concept of wanbel

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Estimating pension wealth of ELSA respondents

This paper explains the methodology used for calculating pensionwealth for all individuals in the first wave of the EnglishLongitudinal Study of Ageing (ELSA). We focus on the pensionwealth of individuals aged between 50 and the state pension age.Both state and private pension wealth has been calculated and eachhas been calculated both on the basis of immediate retirement in2002 and on the basis of retirement at the state pension age.Sensitivity analysis of our assumptions is also presented, whichshows that the distribution of pension wealth is sensitive to ourassumptions about the discount rate and contracting out historiesbut insensitive to assumptions about future earnings growth, futureannuity rates and future asset returns

A simultaneous spin/eject mechanism for aerospace payloads

A simultaneous spin/eject mechanism was developed for aerospace applications requiring a compact, passive device which would accommodate payload support and controlled-release functions, and which would provide a highly accurate spin-ejection motion to the payload. The mechanism satisfied the requirements and is adaptable to other deployment applications

Modeling of flexible surfaces: A preliminary study

The one-dimensional classical scalar string equation which involves linearization about a horizontal reference or equilibrium position is derived. We then derive a model for small motion about a nonhorizontal reference. The implications of our findings to modeling of flexible antenna surfaces such as that in the Maypole Hoop/Column antenna are discussed

CT-duality as a local property of the world-sheet

In the present article, we study the local features of the world-sheet in the case when probe bosonic string moves in antisymmetric background field. We generalize the geometry of surfaces embedded in space-time to the case when the torsion is present. We define the mean extrinsic curvature for spaces with Minkowski signature and introduce the concept of mean torsion. Its orthogonal projection defines the dual mean extrinsic curvature. In this language, the field equation is just the equality of mean extrinsic curvature and extrinsic mean torsion, which we call CT-duality. To the world-sheet described by this relation we will refer as CT-dual surface.Comment: Latex, 15 pages, 2 Figure

A Pyramid Scheme for Particle Physics

We introduce a new model, the Pyramid Scheme, of direct mediation of SUSY breaking, which is compatible with the idea of Cosmological SUSY Breaking (CSB). It uses the trinification scheme of grand unification and avoids problems with Landau poles in standard model gauge couplings. It also avoids problems, which have recently come to light, associated with rapid stellar cooling due to emission of the pseudo Nambu-Goldstone Boson (PNGB) of spontaneously broken hidden sector baryon number. With a certain pattern of R-symmetry breaking masses, a pattern more or less required by CSB, the Pyramid Scheme leads to a dark matter candidate that decays predominantly into leptons, with cross sections compatible with a variety of recent observations. The dark matter particle is not a thermal WIMP but a particle with new strong interactions, produced in the late decay of some other scalar, perhaps the superpartner of the QCD axion, with a reheat temperature in the TeV range. This is compatible with a variety of scenarios for baryogenesis, including some novel ones which exploit specific features of the Pyramid Scheme.Comment: JHEP Latex, 32 pages, 1 figur

Approximation techniques for parameter estimation and feedback control for distributed models of large flexible structures

Approximation ideas are discussed that can be used in parameter estimation and feedback control for Euler-Bernoulli models of elastic systems. Focusing on parameter estimation problems, ways by which one can obtain convergence results for cubic spline based schemes for hybrid models involving an elastic cantilevered beam with tip mass and base acceleration are outlined. Sample numerical findings are also presented