536 research outputs found
A Conversation with Doris H. Gray on the Power and Limitations of Restorative Justice across History, Culture, and Gender
No full textThis interview with Doris H. Gray, author of Leaving the Shadow of Pain: A Cross-cultural Exploration of Truth, Trauma, Reconciliation, and Healing, explores the impact of political trauma across time, and the strategies for healing and justice. The conversation with Gray focuses on the ways in which her own experiences, as the child of a traumatized German Jew, intersect with those of formerly persecuted and incarcerated Tunisian women before and after the Arab Spring. What are the possibilities and limitations of restorative justice for those haunted by history
Food and eating in fiction since 1950 with particular reference to the writing of Angela Carter, Doris Lessing, Michele Roberts and Alice Thomas Ellis.
No full textPhDEating is a fundamental activity. What people eat, how and with whom, what
they feel about food, what they do or do not want to eat and why - even who
they eat - are of crucial significance in any reading of human behaviour.
In this thesis, I consider the diverse and complex uses of food and eating
in fiction since 1950, especially that written by women. I argue both that food
and eating carry much of the meaning of a novel or story and that the acts of
cooking, feeding and eating depicted are inseparable from issues of power and
control: individually, interpersonally, culturally, politically.
My discussion centres on the writing of Angela Carter, Doris Lessing,
Michele Roberts and Alice Thomas Ellis. Drawing on psychoanalytic theory,
sociology, anthropology, Foucault, Bakhtin and others, the thesis aims to
construct an interdisciplinary perspective which both resists reductive
interpretations and emphasises the centrality, complexity and diversity of food
and eating in literature in our culture.
I begin with an examination of the ambiguities of maternal feeding and
nurturing, moving on to explore the links between appetite, eating and sexuality.
I explore cannibalism and vampirism as manifestations of oppression, but also as
indicating insatiable emptiness and transgressive appetite. The body itself is
crucial, and my argument considers the paradox of not eating as
control/enslavement, also tracing self-starvation as a positive route towards
wholeness and connection. The last part of my argument focuses on social
eating, examining conventions, rituals and food itself in connection with power
relations, and finally considers how we might truly speak of food and eating in
the context of society as a whole
Insertion devices for DORIS III (invited)
No full textRecently, a major reconstruction of the electron storage ring DORIS II, the DORIS III project, has been completed [W. Brefeld, H. Nesemann, and J. Rossbach, Proceedings of the European Particle Accelerator Conference, Rome (World Scientific, Singapore, 1988), p. 2389]. Figure 1 shows an overview of the new ring. Originally DORIS II had a twofold symmetry. In part C each of the two dipole magnets adjacing to the 65‐m‐long straight section was replaced by three corresponding weaker ones. In this way a total of seven straight sections for insertion devices are provided. Six of them are 4‐m long and the one in the center is only 2.7‐m long. After extensive discussions with the user groups involved, four x‐ray wigglers, one asymmetric hybrid structure, one x‐ray undulator, and one XUV multiple undulator of the revolver type have been proposed for six of the sections [J. Pflüger and P. Gurtler, Nucl. Instrum. Methods A 287, 628 (1990)]. One section is presently still free. All devices are either in construction or have already been completed and installed. In this contribution the mechanical and magnetic design of these devices will be described. Results of magnetic measurements of those devices which are already completed will be given in more detail.HAY
"Should I surrender?": performing and interrogating female virginity in Hollywood films 1957-64
No full textThe twin topics of interest to this thesis are the figure of the desirous virgin, as she appeared in Hollywood films around the cusp of the 1960s, and Doris Day, during the later evolution of her star persona around the time of Pillow Talk (Michael Gordon, 1959).
An introductory section looks at important works from star studies and film history. Several texts from stereotype studies are also examined, both sections working to build up a methodology for the explorations of the virgin and Day which follow.
Films which seem to constitute part of a distinct mini-cyle, the 'virginity dilemma' film, are then explored in detail, with their shared themes, narratives, characters, and, often, actors, examined. This cycle of films seems crossgeneric, with both comic and melodramatic entries produced. Furthermore, a generically-inspired rubric, dictating the physical performance of the virgin, emerges from comparison of the films. Here the comic virgin displays a buoyant comic body, her unruly kinesis indicative of energies not yet directed into sex. By contrast, the melodramatic virgin is always marked by a stillness and composure which may wax and wane through the film but will reach both its apogée and rupture at the moment when she capitulates to consummation.
The final section looks at Doris Day's star persona as it emerged after Pillow Talk attempted to redefine her as a maturely sexual star. Subsequent films pathologized the qualities of maturity and sexuality, resulting in the creation of a coy aged virgin persona. Although actually performed only once, in Lover Come Back (Delbert Mann, 1961), this persona subsumed previous incarnations of the star, eventually leading to the decline of her active career and calcifying to become the dominant lasting memory of Day even now
Structural and electrical characterisation of ion-implanted strained silicon
No full textThe production of low resistance ultra-shallow junctions for e.g. source/drain extensions using low energy ion-implantation will be required for future CMOS devices [1]. This architecture will require implants which demonstrate high electrical activation and nm range depth profiles. We investigate the properties of Sb implants in tensile strained silicon due to their potential to satisfy these criteria, and the carrier mobility enhancements associated with tensile strained silicon. Low energy (in this case 2 keV)implants coupled with Sb’s large atomic radius are capable of providing ~ 10 nm implant depths. In addition to this, Sb, in the presence of tensile strain demonstrates higher electrical activation when compared with the more traditional n-type dopant As [2].
We now report on the initial results of an ongoing systematic study over a wide silicon tensile strain range (from 0.4 to 1.25 % strain) in order to establish clear strain-related trends. Graded Si1-xGex virtual substrates (VS) with are used as template substrates, upon which tensile strained Si layers are grown. Prior to implantation the 0.1 ≤ x ≤ 0.3 quality of the strained layer and SiGe buffer is assessed using UV micro-Raman spectroscopy (μRS), synchrotron x-ray topography (SXRT) and high resolution x-ray diffraction (HR-XRD). For measurements of strain following implantation, HR-XRD is found to be more useful than μRS due to additional carrier-concentration induced Si
Raman peak shifts in the Raman spectra , these obscure small changes in the strain state, and result from the degenerate doping levels achieved in these samples (~7x1020 cm-3).
Using x-ray techniques, we find clear evidence of tilt in the SiGe VS at Ge concentrations > 23% (i.e. ε > 0.9 %), this tilt impacts on the quality of the strained Si. In
addition to this, stacking faults have been detected non-destructively in the higher strain samples (ε = 1.25%, VS = Si0.7Ge0.3) using SXRT in transmission mode
Diversity of the Amazonian dennis-ray mimicry ring.
No full text<p>First row: <i>H</i>. <i>burneyi huebneri</i>, <i>H</i>. <i>aoede auca</i>, and <i>H</i>. <i>xanthocles zamora;</i> second row: <i>H</i>. <i>timareta timareta</i> f. <i>timareta</i>, <i>H</i>. <i>doris doris</i>, and <i>H</i>. <i>demeter ucayalensis;</i> third row: <i>H</i>. <i>melpomene malleti</i>, <i>H</i>. <i>egeria homogena</i>, and <i>H</i>. <i>erato emma</i>; fourth row: <i>H</i>. <i>elevatus pseudocupidineus</i>, <i>Eueides heliconioides eanes</i>, and <i>E</i>. <i>tales calathus</i>; and bottom: <i>Chetone phyleis</i>, a pericopine moth. Stars indicate the three species that are the focus of this study. Butterflies figured are from the Neukirchen Collection, McGuire Centre, Florida. The butterflies are from populations in both Ecuador and Peru.</p
Cosmological Implications and Physical Properties of an X-Ray Flux-Limited Sample of Galaxy Clusters
No full textStructural studies of ba3-type cytochrome c oxidase using serial crystallography and X-ray absorption spectroscopy
No full textCytochrome c oxidase (CcO) catalyses the reduction of molecular oxygen to water while the energy released in this process is used transport protons “up-hill” across an energy transducing biological membrane, creating a proton-motive force for ATP synthesis. Given its key role in energy transduction in organisms, proton pumping has been extensively studied across species. Even though many members of the CcO superfamily have been structurally characterized in detail, time-resolved structural details of electron transfer coupled to proton pumping have not been entirely understood. A billion-fold jump in the peak X-ray brilliance delivered by X-ray free electron laser (XFEL) and the development of serial femtosecond crystallography (SFX) allowed the determination of protein structures at room temperature, opening up the opportunities to measure ultrafast reactions in proteins. Moving beyond the study of only light-sensitive systems, our long-term goal is to use time-resolved serial femtosecond crystallography at XFELs for a comprehensive structural study of cytochrome c oxidase activity. First, we employed a standard pump-probe SFX setup in a time-resolved (TR) study of structural events following the photodissociation of carbon monooxide (CO) from a reduced CO-bound ba3-type CcO. In the following study, we performed TR-SFX to track structural changes at the active site of ba3-type CcO upon photoinitiated release of oxygen molecule from cobal-based cage compound. Moreover, to utilize the potential of synchrotron radiation and lower the entry barrier for serial crystallography at synchrotron beamlines, we designed and experimentally validated a flow-cell device for serial synchrotron crystallography (SSX) at room-temperature. Finally, we used X-ray absorption spectroscopy (XAS) to access electronic configuration and coordination geometry of copper and iron co-factors of ba3-type CcO in different redox states. Qualitative analysis of X-ray absorption near-edge structure (XANES) and theory-based model of extended X-ray absorption fine structure (EXAFS) highlighted differences between analyzed samples, leaving room for additional computational input to obtain a detailed fingerprint of ba3-type CcO redox states and better understanding of possible ligands in the heme a3-CuB active site. The work presented in this thesis highlights the importance of utilizing different methods for comprehensive understanding of enzyme reaction dynamics
Development of synchrotron radiation as a high-intensity source for X-ray diffraction
No full textInterest in the molecular mechanism of muscle contraction led to the search for an intense source of X-rays of 1–2 Å wavelength so as to be able to examine the rich X-ray diffraction patterns given by muscles during contraction. This led to the first X-ray diffraction experiments using synchrotron radiation, carried out by Holmes, Rosenbaum and Witz at DESY, Hamburg, in September 1970. In the following years, the EMBL Outstation, to utilize synchrotron radiation for biological structure determination, was established at DESY and preliminary experiments on muscle were also carried out at NINA (Daresbury). The development of time-resolved techniques for muscle diffraction was first started in the MRC Molecular Biology Laboratory in Cambridge, using rotating-anode X-ray tubes, and was then greatly extended at the EMBL Outstation, Hamburg, using the storage ring DORIS. This was a very successful venture, and helped to drive the whole technology development and to interest other potential users in the techniqu
- …
