Round barrows and dykes as landscape metaphors

This article outlines the results of phenomenological research on the significance of landscape features, in particular ridges and coombe (dry valley) systems, in relation to the locations of Bronze Age round barrows and late Bronze Age/early Iron Age crossridge and spur dykes constructed along a chalk ridge in central southern England. It considers the locations of these monuments in a holistic manner and argues that together the round barrows, and then subsequently the dykes, network or draw together very different aspects of the topography in narratives about life and death. The round barrows differentially reference the significance of these places metaphorically through a combination of their specific locations. By contrast, the monumental courses of the dykes physically impose themselves on, or objectify the significance of, the same landscape features, but in a radically different manner indicating both continuity and difference in the historical significance of place. © 2004 McDonald Institute for Archaeological Research

Consumer Response to Genetically Modified Foods

The consumer trait and characteristic identification, and corresponding relationship to the genetically modified food product's negative reactions was determined from a 354 respondent, 130 item mailed survey. The survey and partially mediated model from Mowen's 3M Model of Personality and Motivation explained how personality traits influence genetically modified food reactions.Consumer/Household Economics,

THE ENGLISH RULE AS TO LIABILITY FOR UNINTENDED CONSEQUENCES

The question how far a defendant is liable in tort for the unintended consequences of his wrongful act, generally supposed to have been settled for England by the case of In re Polemis and Furness, Withy & Co., Ltd., has recently been reopened by the House of Lords decision in the case of Liesbosch Dredger v. S. S. Edison. Defendants, owners of the Edison, negligently sank the plaintiffs\u27 dredger Liesbosch while the latter was being used by the plaintiffs in performance of a profitable contract to construct a harbor at Patras, Greece. There was evidence that, had the plaintiffs had the necessary capital at their disposal, they could have purchased another dredger in Holland. Unfortunately all of plaintiffs\u27 resources were tied up, and to continue work on the contract, which contained severe penalty clauses for failure to complete performance within a specified time, plaintiffs entered into negotiations to hire another dredger. Several months elapsed, during which all work on the harbor had to be suspended, before they succeeded in hiring the Adria, a somewhat larger dredger, at an admittedly high rate of hire. After operating the Adria for a year, the plaintiffs found the cost of hire so burdensome that they prevailed upon the Patras harbor authorities to purchase the Adria for cash and resell her to them on the installment plan

SSME structural dynamic model development

A mathematical model of the Space Shuttle Main Engine (SSME) as a complete assembly, with detailed emphasis on LOX and High Fuel Turbopumps is developed. The advantages of both complete engine dynamics, and high fidelity modeling are incorporated. Development of this model, some results, and projected applications are discussed

Tracking ocean wave spectrum from SAR images

An end to end algorithm for recovery of ocean wave spectral peaks from Synthetic Aperture Radar (SAR) images is described. Current approaches allow precisions of 1 percent in wave number, and 0.6 deg in direction

Topological stability of stored optical vortices

We report an experiment in which an optical vortex is stored in a vapor of Rb atoms. Due to its 2\pi phase twist, this mode, also known as the Laguerre-Gauss mode, is topologically stable and cannot unwind even under conditions of strong diffusion. To supplement our finding, we stored a flat phase Gaussian beam with a dark center. Contrary to the optical vortex, which stays stable for over 100 microseconds, the dark center in the retrieved flat-phased image was filled with light at storage times as small as 10 microseconds. This experiment proves that higher electromagnetic modes can be converted into atomic coherences, and that modes with phase singularities are robust to decoherence effects such as diffusion. This opens the possibility to more elaborate schemes for two dimensional information storage in atomic vapors.Comment: 4 pages, 4 figures v2: minor grammatical corrections v3: problem with references fixed v4: minor clarifications added to the tex

Beyond the Landau Criterion for Superfluidity

According to the Landau criterion for superfluidity, a Bose-Einstein condensate flowing with a group velocity smaller than the sound velocity is energetically stable to the presence of perturbing potentials. We found that this is strictly correct only for vanishingly small perturbations. The superfluid critical velocity strongly depends on the strength and shape of the defect. We quantitatively study, both numerically and with an approximate analytical model, the dynamical response of a one-dimensional condensate flowing against an istantaneously raised spatially periodic defect. We found that the critical velocity $v_c$ decreases by incresing the strength of the defect $V_0$, up to to a critical value of the defect intensity where the critical velocity vanishes

The ISIS synchrotron beam control and study programme

Progress on the beam control and study programme for the 800 MeV High Intensity Proton Synchrotron of the Spallation Neutron Source ISIS, is outlined. Recent hardware upgrades to diagnostics, instrumentation and computing have increased the amount, accuracy and availability of beam information. The measurement methods employed and their planned applications for beam control, optimisation and study are described. Work includes detailed study of longitudinal and transverse dynamics at high and low intensity. Results obtained so far and future plans are summarised. (6 refs)