5,449 research outputs found
"Three Vermonters" during World War I, 10 April 1918
No full textUnused photographic postcard with an image of three soldiers, presumably on a boat; identified on the back with a note by Timothy Michael Donahue reading "Three Vermonters, Lieut. Col. Cooley, Lieut. Sumner, Lieut. Donahue, April 10, 1918."Timothy Michael Donahue (1893-1973) of Northfield, Vermont, served in the Vermont National Guard during the Mexican Border Crisis and in the U.S. Army during World War I. His parents ran the Norwich University mess hall for many years
Characterisation and Calibration of ZEPLIN III - A Dark Matter Detector
No full textThe ZEPLIN III liquid xenon dark matter detector is designed to potentially discover
the WIMP - a supersymmetric galactic dark matter candidate. This thesis presents
experimental results of the ZEPLIN III commissioning studies, in preparation for
the first and second underground science runs.
Data acquired on the surface, at the Imperial College London laboratories, were
used to characterise the instrument’s response in terms of light yield (LY) and
single photoelectron (SPE) spectra. A zero-field LY was measured as 7.42±0.37
phe/keV and 18.12±0.91 phe/keV in dedicated single- and dual-phase high yield
configurations, respectively, consistent with Monte Carlo simulations. Mean SPE
measured pulse areas ranged from 41.78±1.55 Vps to 52.37±1.59 Vps, depending
on the method employed. A 3-D position reconstruction was verified and, significantly,
no evidence of a potentially-contaminating background -population was
observed. This study directly lead to critical development of the DAQ software and
hardware configuration. The PMT array was confirmed as responsive and, crucially,
the particle discrimination principle was demonstrated. Zero-field LYs of (4.6-4.7)
±0.5 phe/keV were recovered from the centre of the chamber, exceeding simulation
predictions. With-field (3.01 kV/cm in the liquid) LYs of (1.2-1.8) ±0.3 phe/keV
from the liquid scintillation (S1) and an electroluminescence yield (S2) of (98-140)
±35 phe/keV from the gas phase were also determined.
ZEPLIN III was deployed in the Boulby Underground Laboratory, UK and demonstrated
successful operation at high field (up to 3.79 kV/cm in the liquid), in situ.
An alternative Poisson method for obtaining single photoelectron distributions was
developed by the ZEPLIN collaboration. The origin of long- events in surface
data was investigated and ultimately resolved as an artefact of early versions of
the data reduction software. An S1 zero-field LY of 4.72±0.10 phe/keV, obtained
with a 57Co external source, was recovered for the centre of the chamber. The instrument’s
energy resolution was evaluated and a novel parameterisation approach,
developed by the author, yielded sigma=1.08±0.06
p
E(keV ) with a dominant stochastic
term. A ‘flat-fielding’ method was established, proving to minimise the resolution
significantly, yielding 8.6% and 7.3% for S1 and S2, respectively, in the fiducialised
anti-correlated energy channel. This flat-fielding recipe, along with construction
of the light collection correction matrices, formed the basis of the final procedures
subsequently applied to first science run data-sets
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
The metric tun : standardisation, quantification and industrialisation in the British brewing industry, 1760-1830
No full textThis thesis considers the British beer-brewing industry around 1800 as a case study exploring current themes in the history of science and technology: the imposition of
reliable standards, the use of instruments and quantities, and the nature of industrial growth. I begin by addressing Michael Combrune, author of the first thermometric
brewing account, showing the influence of Boerhaavian fermentation theory and the eighteenth-century agenda for "commercial chemistry" on his work: Combrune's
fellow brewers, however, did not generally rely on the chemical scheme of management he had established, developing instead highly localised thermometric
operations which did not challenge established understandings. Next, I consider the determination of beer strength, focusing here on the brewer John Richardson's
innovation of the saccharometer, a gravimetric philosophical instrument. I show how Richardson presented both the device and the quantity in which it was scaled, later termed the `brewer's pound, ' as offering brewery-specific advantages, in order to ensure its acceptance whilst at the same time denying its roots in the disputatious field of spirits hydrometry. Richardson did not achieve his wider goal of monopolist control over the device, but his project of saccharometric determination was widely taken up, contributing to a significant change in the composition of beer, as brewers moved from using traditional brown- malts to the saccharometrically preferable pales. This development is then reviewed in the context of an analysis of the identity of London porter, the staple brown beer of London: I investigate the relationship of porter's identity to the uniquely vast and industrialised plants which produced it. Finally, I highlight the ambiguous nature of appeals to `science' or `chemistry' before 1830 by discussing the widespread contemporary panic over adulteration, popularly assumed to
be practised by those who associated with chemists and did not pursue a `traditional' approach to brewing. This controversy was settled, I contend, only with the later
development of a common laboratory-analytical context between brewers, pharmacists and public analysts who were able to redefine the concept of adulteration itself
Money piece by Timothy P. Agnew, chief executive officer of the Finance Author
No full textMoney piece by Timothy P. Agnew, chief executive officer of the Finance Authority of Maine, about the increased availability of credit for Maine\u27s small businesses
Multi-walled carbon nanotube directed gene and protein expression in cultured human aortic endothelial cells is influenced by suspension medium
No full textAbstract not availableAchini K. Vidanapathirana, Xianyin Lai, Susana C. Hilderbrand, Josh E. Pitzer, Ramakrishna Podila, Susan J. Sumner, Timothy R. Fennell, Christopher J. Wingard, Frank A. Witzmann, Jared M. Brow
Timothy Meyer serves as a contributing author for UN report
No full textAssistant Professor Timothy Meyer served as a contributing author for the United Nations Industrial Development Organization\u27s report titled Networks for Prosperity: Connecting Development Knowledge Beyond 2015. The document, which was released during November, analyzes the nexus between the global connectedness of a country and its economic success, sustainability and government effectiveness. Meyer was one of only approximately 20 academic and practical experts from around the world selected to serve as a contributor after a global call for proposals.
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Selected Contributions of Sister Mary Berenice Beck, O.S.F. to Nursing in the United States, 1923-1956
No full textby Sister M. Timothy Costello.Typescript.Thesis (M.S.N.)--Catholic University of America.Bibliography: leaves 44-47.Also available in microfilm
The Baptismal Liturgy of Theodore of Mopsuestia
No full textTimothy A. Curtin.Typescript.Thesis (S.T.D.)--Catholic University of America, 1971.Bibliography: leaves 368-393
Five minutes with Timothy Gowers: “academics can publish journals of the highest quality without a commercial entity”
No full textFields Medal-winning Cambridge mathematician Sir Timothy Gowers and a team of colleagues have recently launched a new editor-owned Open Access (OA) journal for mathematics. Discrete Analysis is an arXiv overlay journal, which means articles are submitted and hosted via the preprint server arXiv first. The journal coordinates peer-review and publishes via Scholastica with no cost to reader or author. Gowers reflects here on his vision for the future of editor-owned journals
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