1,224 research outputs found
Chiral nonanalytic behaviour: The Edinburgh Plot
No full textCopyright © 2003 Published by Elsevier B.V.The Edinburgh Plot is a scale independent way of presenting lattice QCD calculations over a wide range of quark masses. In this sense it is appealing as an indicator of how the approach to physical quark masses is progressing. The difficulty remains that even the most state of the art calculations are still at quark masses that are too heavy to apply dimensionally-regulated chiral perturbation theory. We present a method allowing predictions of the behaviour of the Edinburgh plot, in both the continuum, and on the lattice.Stewart V. Wright, Derek B. Leinweber and Anthony W. Thomashttp://www.elsevier.com/wps/find/journaldescription.cws_home/505717/description#descriptio
A critical edition of Derek Walcott's Omeros
No full textThe thesis is a Critical Edition of Derek Walcott’s Omeros, consisting of a Critical
Introduction and Annotations. The Critical Introduction analyses:
- Narrative
- Settings
- Metaphor and Paronomasia
- Symbolism
- Historiography
- Intertexts
- Dualism
- Autobiography
- Dialects
- Prosody.
The Annotations comment on more than 1000 references that may be obscure and on
specifics of narrative, language and prosody.
This study presents new conclusions about some aspects of Omeros:
- It challenges the prevailing view that the work is written substantially in a
variation of terza rima and shows that regular quatrains predominate.
- It demonstrates ways in which the metrics follow the sense of the narrative and
takes a more balanced position on the use of Caribbean as opposed to classical
metrics than that put forward previously.
- It identifies a paragraphic structure to the verse.
- It proposes a new prosodic structure for the significant Chapter XXX/iii.
- It extends Walcott’s recognised use of numerology into word counting the
names of characters.
- It develops the idea of Walcott’s dualism and his use of pairing and
contradiction as a dialectical method.
- It defines his wide use of paronomasia and shows that many of the puns have a
metaphorical aspect beyond mere word-play.
- It analyses some of Walcott’s symbolism.
- It identifies intertextual links to his earlier works and to some thirty other
writers, and suggests homage to Hemingway and possibly Heaney.
- It provides the first complete analysis of Walcott’s rhyme types in Omeros.
In its analysis of Omeros and in the Annotations it has included commentary from
across the critical literature, to provide some sense of other views on Walcott’s
writing, and has included as many as possible of Walcott’s own comments on Omeros
and on the writer’s task, as a background to understanding the poem
Supplemental Material - Accuracy of head computed tomography scoring systems in predicting outcomes for patients with moderate to severe traumatic brain injury: A ProTECT III ancillary study
No full textSupplemental Material for Accuracy of head computed tomography scoring systems in predicting outcomes for patients with moderate to severe traumatic brain injury: A ProTECT III ancillary study by Haijun Wu, David W. Wright, Jason W. Allen, Victoria Ding, Derek Boothroyd, Olena Y. Glushakova, Ron Hayes, Bin Jiang,Max Wintermark in The Neuroradiology Journal</p
The sigma commutator from lattice QCD
No full textAs a direct source of information on chiral symmetry breaking within QCD, the sigma commutator is of considerable importance. Since hadron structure is a non-perturbative problem, numerical calculations on a space-time lattice are currently the only rigorous approach. With recent advances in the calculation of hadron masses within full QCD, it is of interest to see whether the sigma commutator can be calculated directly from the dependence of the nucleon mass on the input quark mass. We show that, provided the correct chiral behaviour of QCD is respected in the extrapolation to realistic quark masses, one can indeed obtain a fairly reliable determination of the sigma commutator using present lattice data. For two-flavour dynamical fermion QCD the sigma commutator lies between 45 and 55 MeV based on recent data from CP-PACS and UKQCD.Stewart V. Wright, Derek B. Leinweber and Anthony W. Thomashttp://www.elsevier.com/wps/find/journaldescription.cws_home/505715/description#descriptio
A graphical and computational modelling platform for biological pathways
No full textA major endeavor of systems biology is the construction of graphical and computational models of biological pathways as a means to better understand their structure and function. Here, we present a protocol for a biologist-friendly graphical modeling scheme that facilitates the construction of detailed network diagrams, summarizing the components of a biological pathway (such as proteins and biochemicals) and illustrating how they interact. These diagrams can then be used to simulate activity flow through a pathway, thereby modeling its dynamic behavior. The protocol is divided into four sections: (i) assembly of network diagrams using the modified Edinburgh Pathway Notation (mEPN) scheme and yEd network editing software with pathway information obtained from published literature and databases of molecular interaction data; (ii) parameterization of the pathway model within yEd through the placement of 'tokens' on the basis of the known or imputed amount or activity of a component; (iii) model testing through visualization and quantitative analysis of the movement of tokens through the pathway, using the network analysis tool Graphia Professional and (iv) optimization of model parameterization and experimentation. This is the first modeling approach that combines a sophisticated notation scheme for depicting biological events at the molecular level with a Petri net–based flow simulation algorithm and a powerful visualization engine with which to observe the dynamics of the system being modeled. Unlike many mathematical approaches to modeling pathways, it does not require the construction of a series of equations or rate constants for model parameterization. Depending on a model's complexity and the availability of information, its construction can take days to months, and, with refinement, possibly years. However, once assembled and parameterized, a simulation run, even on a large model, typically takes only seconds. Models constructed using this approach provide a means of knowledge management, information exchange and, through the computation simulation of their dynamic activity, generation and testing of hypotheses, as well as prediction of a system's behavior when perturbed
Cariboo College papers in archaeology number 3: Archaeological site survey and excavation, Seton Portage - Shalalth : a preliminary report
No full textCariboo College Papers in Archaeology is a series of papers dealing with archaeological research in the Interior Plateau of British Columbia. During July and August of 1974, Derek Wales conducted a Ruppe type 4 archaeological site survey in the Seton Portage-Shalalth area of B.C. Also during the final three weeks of August salvage work was conducted at site EeRn 11. This report presents a preliminary account of both the site survey and salvage work. Submitted to the Archaeological Sites Advisory Board of British Columbia.Peer reviewedArchaeological repor
Cariboo College papers in archaeology number 3: Archaeological site survey and excavation, Seton Portage - Shalalth : a preliminary report
No full textCariboo College Papers in Archaeology is a series of papers dealing with archaeological research in the Interior Plateau of British Columbia. During July and August of 1974, Derek Wales conducted a Ruppe type 4 archaeological site survey in the Seton Portage-Shalalth area of B.C. Also during the final three weeks of August salvage work was conducted at site EeRn 11. This report presents a preliminary account of both the site survey and salvage work. Submitted to the Archaeological Sites Advisory Board of British Columbia.Peer reviewedArchaeological repor
NEA Workshop
No full textThis volume contains abstracts that have been accepted for presentation at the Near-Earth Asteroid Sample Return Workshop, December 11-12, 2000.Sponsored by Arkansas-Oklahoma Center for Space and Planetary Science,, University of Arkansas, Lunar and Planetary Institute, National Aeronautics and Space AdministrationPARTIAL CONTENTS: Near-Earth Asteroid Sample Curation--C. C. Allen and M. M. Lindstrom--Surface Processes and Sample Return: What Can We Learn About Asteroid Regoliths?--D. T. Britt--Implications from NEAR-Shoemaker Imaging of Eros for Small-Scale Structure and Surface Sampling--C. R. Chapman and the NEAR MSI-NIS Team--Surface Properties of 433 Eros: Results from NEAR--A. F. Cheng--Sample Containment Options for Planetary Protection--B. C. Clark--Initiating Exponential Growth in NEA Exploration with NEA Science Missions--E. L. Dahlstrom--Sample Characterization on Asteroid Sample Return Missions by the Alpha X-Ray Spectrometer--T. E. Economou--High Precision Light Element Isotopic Characterization of Asteroidal Material--I. A. Franchi, L. Baker, I. P. Wright, and C. T. Pillinger--MUSES-C: Mission Scenario and Science--A. Fujiwara, T. Mukai, M. Abe, H. Yano, J. Kawaguchi, and K. Uesugi--Generalized Cutting Tool Temperatures for a Spacecraft Payload--J. R. C. Garry.Steering Committee: Derek Sears, Chair, University of Arkansas, Dan Britt, University of Tennessee, Don Brownlee, University of Washington, Andrew Cheng, Johns Hopkins University, Benton Clark, Lockheed Martin Astronautics, Leon Gefert, NASA Glenn Research Center, Steve Gorevan, Honeybee Robotics, Marilyn Lindstrom, NASA Johnson Space Center, Carle Pieters, Brown University, Jeff Preble, Space Works, Inc., Brian Wilcox, Jet Propulsion Laboratory, Don Yeomans, Jet Propulsion Laboratory
Voices of inheritance : aspects of British film and television in the 1980s and 1990s
No full textDuring the 1990s the notion of the heritage film has become a taken for granted
category of British cinema. Rather than dispute the merits of particular films that lie
within this genre I question the construction of the relation between the idea of
heritage and contemporary British film and television. Using the critical literature
established by the contending cultural histories that address the rise of heritage in
British culture, I highlight other, frequently personal and national engagements with
inherited pasts. The concentration upon inheritance lends a greater emphasis to
what is passed on from the past and endures in the present.
The modes of articulating these inherited pasts are formally distinctive and
constructed out of the vocabulary of documentary and fiction. The corpus of texts
begins with the apparently radical avant garde film-making of Derek Jannan and
moves through the work of the Black Audio Film Collective to the apparently
conservative television documentaries of Alan Bennett. These key voices are then
situated in relation to the hegemonic definition of heritage and current debates
concerning British film and television. The persisting opposition which defined
British cinema during the 1980s posits an unofficial cinema characterized by dissent
and urban decay against an official cinema represented by the heritage film. My
corpus of texts challenges this opposition. The different engagements with inherited
pasts take place from different speaking positions and represent a diminishing
publicly funded tradition of film and television production. The range of positions
from margins to centre reveal that there was a contestation of the cultural sources
which are aggregated into the construction of heritage during the 1980s and 1990s
An examination of thematic patterns in selected plays by Derek Walcott
No full textThis dissertation studies Derek Walcott, the preeminent dramatist in the West Indies today, and his contributions to West Indian drama and the West Indian theater. Further, the major themes of isolation, alienation, exile, and the search for identity are closely examined as are the devices Walcott uses in his treatment of these themes. These devices include the older West Indian male as an embodiment of the themes, the white presence of America and England as typified by certain characters, and the folklore of the region including the belief in spirits and the local Anansi folktale. A review of two novels by other West Indian authors, A House for Mr. Biswas by V.S. Naipaul and The Wine of Astonishment by Earl Lovelace, documents the prevalence of the relevant themes in West Indian literature. Moreover, the desirability as well as the possibility of a West Indian unity as implied by the works and themes studied, is, hopefully, demonstrated
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