Chest radiography doses with film screen : is further reduction possible?

Peer reviewedPublisher PD

From the 'cinematic' to the 'anime-ic': Issues of movement in anime

This is the author's accepted manuscript. The final published article is available from the link below.This article explores the way that movement is formally depicted in anime. Drawing on Thomas Lamarre's concepts of the `cinematic' and the `anime-ic', the article interrogates further the differences in movement and action in anime from traditional filmic form. While often considered in terms of `flatness', anime offers spectacle, character development and, ironically, depth through the very form of movement put to use in such texts.The article questions whether the modes of address at work in anime are unique to this form of animation.Taking into account how the terms `cinematic' and `anime-ic' can be understood (and by extension the cinematic and animatic apparatus), the article also begins to explore how viewers might identify with such images

Integrating IR detector imaging systems

An integrating IR detector array for imaging is provided in a hybrid circuit with InSb mesa diodes in a linear array, a single J-FET preamplifier for readout, and a silicon integrated circuit multiplexer. Thin film conductors in a fan out pattern deposited on an Al2O3 substrate connect the diodes to the multiplexer, and thick film conductors also connect the reset switch and preamplifier to the multiplexer. Two phase clock pulses are applied with a logic return signal to the multiplexer through triax comprised of three thin film conductors deposited between layers. A lens focuses a scanned image onto the diode array for horizontal read out while a scanning mirror provides vertical scan

The hypersensitization of sixteen millimeter black and white motion picture film by pre-exposure to light.

Thesis (M.S.)--Boston Universit

The Chronotopic Imagination in Literature and Film

In this contribution, I would like to examine the way in which Bakhtin, in the two essays dedicated to the chronotope, lays the foundations for a theory of literary imagination. […] His concept of the chronotope may be interpreted as a contribution to a tradition in which Henri Bergson, William James, Charles Sander Peirce and Gilles Deleuze have been key figures. Like these four authors, Bakhtin is a philosopher in the school of pragmatism. His predilection for what Gary Saul Morson and Caryl Emerson have called “prosaics” puts him right at the heart of a philosophical family that calls forth multiplicity against metaphysical essentialism, and prefers the mundane to the universal. It seems wise to proceed carefully in the attempt to reconstruct Bakhtin’s theory of imagination. In this contribution to the debate, I choose to develop a philosophical dialogue between Bakhtin and the above-mentioned philosophical family. More specifically, it seems to me that the ideal point of departure for examining the way in which Bakhtin attempts to get to the bottom of the mysteries of literary imagination is Gilles Deleuze’s synthesis of Bergson’s epistemological view on knowledge as “the perception of images”, as well as Peirce’s theory of experience based on a typology of images. In the following, I show that Bakhtin’s view of the temporal-spatial constellations in literature demonstrates a strong affinity to the Bergsonian view that perception of the spatial world is colored by the lived time experienced by the observer. Based on this observation, I then develop a typology of images which places the concept of the chronotope in a more systematic framework

The use of radiography in osteological measurement

This is the author's PDF version of an book chapter published in Current and Recent Research in Osteoarchaeology 2 ©1999. The paper was originally delivered at the sixth meeting of the Osteoarchaeological Research Group at the Institute of Archaeology, University of Durham on 7 June 1997.Radiographs provide a means of obtaining permanent images of objects. These images may be readily and repeatedly copied, disseminated or used in a variety of ways without the need further to disturb the original material. Although measurements are frequently taken from such images for metrical analysis, it must be remembered that these images are only representations of the original object. To obtain accurate data, one must be aware of the sources of error inherent in the image-forming process so that radiographs can be used in the appropriate way. This paper outlines the factors involved in the production of radiographic images and applies this to the generation of accurate metrical data

Can high-frequency ultrasound predict metastatic lymph nodes in patients with invasive breast cancer?

Aim To determine whether high-frequency ultrasound can predict the presence of metastatic axillary lymph nodes, with a high specificity and positive predictive value, in patients with invasive breast cancer. The clinical aim is to identify patients with axillary disease requiring surgery who would not normally, on clinical grounds, have an axillary dissection, so potentially improving outcome and survival rates. Materials and methods The ipsilateral and contralateral axillae of 42 consecutive patients with invasive breast cancer were scanned prior to treatment using a B-mode frequency of 13 MHz and a Power Doppler frequency of 7 MHz. The presence or absence of an echogenic centre for each lymph node detected was recorded, and measurements were also taken to determine the L/S ratio and the widest and narrowest part of the cortex. Power Doppler was also used to determine vascularity. The contralateral axilla was used as a control for each patient. Results In this study of patients with invasive breast cancer, ipsilateral lymph nodes with a cortical bulge ≥3 mm and/or at least two lymph nodes with absent echogenic centres indicated the presence of metastatic axillary lymph nodes (10 patients). The sensitivity and specificity were 52.6% and 100%, respectively, positive and negative predictive values were 100% and 71.9%, respectively, the P value was 0.001 and the Kappa score was 0.55.\ud Conclusion This would indicate that high-frequency ultrasound can be used to accurately predict metastatic lymph nodes in a proportion of patients with invasive breast cancer, which may alter patient management