22,169 research outputs found


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    Using a combination of migration studies, political sociology, and policy studies, this paper explores the contradictions and violence of immigration detention, its architectures, and its audiences. The concept of “detention-as-spectacle” is developed to make sense of detention’s hypervisible and obscured manifestations in the European Union. We focus particularly on two case studies, the United Kingdom and Malta, which occupy different geopolitical positions within the EU. Detention-as-spectacle demonstrates that detention is less related to deterrence and security than to displaying sovereign enforcement, control, and power. A central aspect of the sovereign spectacle is detention’s purported ability to order and even halt “crises” of irregular immigration, while simultaneously creating and reinforcing these crises. The paper concludes by examining recent disruptions to the spectacle, and their implications

    Julian Ernst Besag, 26 March 1945 -- 6 August 2010, a biographical memoir

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    Julian Besag was an outstanding statistical scientist, distinguished for his pioneering work on the statistical theory and analysis of spatial processes, especially conditional lattice systems. His work has been seminal in statistical developments over the last several decades ranging from image analysis to Markov chain Monte Carlo methods. He clarified the role of auto-logistic and auto-normal models as instances of Markov random fields and paved the way for their use in diverse applications. Later work included investigations into the efficacy of nearest neighbour models to accommodate spatial dependence in the analysis of data from agricultural field trials, image restoration from noisy data, and texture generation using lattice models.Comment: 26 pages, 14 figures; minor revisions, omission of full bibliograph

    Metered oxygen supply aids treatment of domestic sewage

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    Microbiological fixed-bed process was developed in which supplementary oxygen required by microbial species is supplied by electrochemical device. Rate of addition of oxygen to waste treatment process is controlled to maintain aerobic metabolism and prevent anaerobic metabolisms which produce odorous or toxic products

    Quantum description and properties of electrons emitted from pulsed nanotip electron sources

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    We present a quantum calculation of the electron degeneracy for electron sources. We explore quantum interference of electrons in the temporal and spatial domain and demonstrate how it can be utilized to characterize a pulsed electron source. We estimate effects of Coulomb repulsion on two-electron interference and show that currently available nano tip pulsed electron sources operate in the regime where the quantum nature of electrons can be made dominant

    The Resistivity of Microorganisms to Thermal Inactivation by Dry Heat Final Report

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    Microorganism resistivity to thermal inactivation by dry heat - glass fibers and membrane filter

    Comparison of Material Properties and Microstructure of Specimens Built Using the 3D Systems Vanguard HS and Vanguard HiQ+HSSLS Systems

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    The HiQ upgrade to the 3D Systems Vanguard selective laser sintering (SLS) machine incorporates a revised thermal calibration system and new control software. The paper compares the tensile modulus, tensile strength, elongation at break, flexural modulus, Izod impact resistance and microstructure of two batteries of standard specimens built from recycled Duraform PA (Nylon 12). The first set is built on a Vanguard HS system and the second on the same system with the HiQ upgrade installed. The upgrade reduces user intervention, decreases total build time and improves surface finish. However, using the default processing parameters, tensile, flexure and impact properties are all found to decline after the upgrade is installed.Mechanical Engineerin
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