198 research outputs found
The ZomPoc Project: A large scale mixed reality event
No full textIn 2011 and again in 2012, deb Polson was commissioned to design and deliver a unique experiment in large scale, live, game design and public performance, bringing together participants from across the creative arts to design, deliver and document a project that was both a cooperative learning experience and an experimental public performance.\ud
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The four month project, funded by the Edge Digital Centre, culminated into a 24 hour Mixed reality event involving over 100 participants in December 2011 and again in December 2012. Using the premise of a viral outbreak, young enthusiasts auditioned for the roles of Survivor, Zombie, Medic and Military. The main objective was for the Survivors to complete a series of challenges over 24 hours, while the other characters fulfilled their opposing objectives of interference and sabotage supported by both scripted and free-form scenarios staged in constructed scenes throughout the venues. The event was set in the State Library of Queensland and the Edge Digital Centre who granted the project full access, night and day to all areas including public, office and underground areas. These venues were transformed into cinematic settings full of interactive props and various audio-visual effects.\ud
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The ZomPoc Project was an innovative experiment in writing and directing a large scale, live, public performance, bringing together participants from across the creative industries. In order to design such an event a number of innovative resources were developed exploiting techniques of game design, theatre, film, television and tangible media production. A series of workshops invited local artists, scientists, technicians and engineers to find new ways of collaborating to create networked artifacts, experimental digital works, robotic props, modular set designs, sound effects and unique costuming guided by an innovative multi-platform script developed by Deb Polson. The result of this collaboration was the creation of innovative game and set props, both atmospheric and interactive. Such works animated the space, presented story clues and facilitated interactions between strangers who found themselves sharing a unique experience in unexpected places.\ud
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Design and Development funding of over $20,000 and supported by inkind contributions by staff at the Edge Digital Centre and State Library of Queensland along with multiple community volunteers.\ud
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This project inspired a number of media articles, radio interviews and a live webcast:\ud
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Led by Deb Polson, QUT’s Creative Industries Faculty hosted a Zombie ‘live feed’ on Friday July 19 2013 with author John Birmingham, horror expert Dr Sorcha Ní Fhlainn and Film critic Dr Tim Milfull. Zombiephiles across the globe watched it over the internet and posted real-time questions and comments.\ud
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MX Brisbane, Melbourne and Sydney, page 5, July 16, 201
Sounds Local, 1990 September 01
No full textMichael Titterton hosts this episode while Jim Polson is on vacation. Episode contains re-airings of the following Polson interview segments: UNC Wilmington psychology professors Andy Jackson and Bob Brown regarding their research decision making and consideration of "sunken costs" (August 25, 1989); author Bland Simpson about his memoir, The Great Dismal: A Carolinian's Swamp Memoir (March 23, 1990); Overview of upcoming events on the cultural calendar
Towards better integrators for dissipative particle dynamics simulations
No full textCoarse-grained models that preserve hydrodynamics provide a natural approach to study collective properties of soft-matter systems. Here, we demonstrate that commonly used integration schemes in dissipative particle dynamics give rise to pronounced artifacts in physical quantities such as the compressibility and the diffusion coefficient. We assess the quality of these integration schemes, including variants based on a recently suggested self-consistent approach, and examine their relative performance. Implications of integrator-induced effects are discussed
Privileged Mobilities: Professional Migration, Geo-Social Media, and a New Global Middle Class
No full textAs corporations ramp up «workforce globalization» and young professionals increasingly pursue opportunities to work abroad, social entrepreneurs use online digital platforms to create offline social events where foreigners can meet face-to-face. Through ethnographic study of such groups in Paris, Singapore, and Bangalore, Erika Polson illustrates how, as a new generation of expatriates uses location technologies to create mobile «places,» a new global middle class is emerging. While there are many differences in the specifics between the expat groups, they share certain characteristics that indicate a larger logic to the way that the increasing mobility of professional career paths is connected to new subjectivities and changing forms of community among a diverse and growing demographic. This book opens up a new field of study, one which pays more attention to middle class mobility while questioning the privileging of mobility more generally.
Endorsements:
“In Privileged Mobilities, Erika Polson opens up the subject of the new mobilities. With an ethnographer’s eye for detail and contradiction, she shows us a range of elite worlds far broader than most other books on the subject.” —Saskia Sassen, Author of Expulsions
“This rich and thoughtful book explores the ways that middle-class professionals use online, social, and locative media to find their place, relate to people, and negotiate cultures as they wend their ways through global metropoles. Deconstructing mobilities and their social imaginaries, Erika Polson raises fundamental questions about the nature of connection and prospects for cosmopolitan life in digital societies.” —Gerard Goggin, University of Sydne
Discontinuous molecular dynamics simulation study of polymer collapse
No full textDiscontinuous molecular dynamics simulations were used to study the coil-globule transition of a polymer in an explicit solvent. Two different versions of the model were employed, which are differentiated by the nature of monomer-solvent, solvent-solvent, and nonbonded monomer-monomer interactions. For each case, a model parameter lambda determines the degree of hydrophobicity of the monomers by controlling the degree of energy mismatch between the monomers and solvent particles. We consider a lambda-driven coil-globule transition at constant temperature. The simulations are used to calculate average static structure factors, which are then used to determine the scaling exponents of the system in order to determine the theta-point values lambda(theta) separating the coil from the globule state. For each model we construct coil-globule phase diagrams in terms of lambda and the particle density rho. Additionally, we explore for each model the effects of varying the range of the attractive interactions on the phase boundary separating the coil and globule phases. The results are analyzed in terms of a simple Flory-type theory of the collapse transition. (c) 2006 American Institute of Physics.PT: J; CR: ABRAMS CF, 2002, EUROPHYS LETT, V59, P391 ALDER BJ, 1959, J CHEM PHYS, V31, P459 ALLEN MP, 1987, COMPUTER SIMULATION BAYSAL BM, 2003, MACROMOL THEOR SIMUL, V12, P627 BELOHOREC P, 1997, UNPUB U GUELPH REPOR BIRSHTEIN TM, 1991, MACROMOLECULES, V24, P1554 CHANG RW, 2001, J CHEM PHYS, V114, P7688 CHAPELA GA, 1984, MOL PHYS, V53, P139 CICCOTTI G, 2004, J STAT PHYS, V115, P701 DELAPENA LH, CONDMAT0607527 DELAPENA LH, CONDMAT0607528 DIJKSTRA M, 1994, J CHEM PHYS, V101, P3179 DIJKSTRA M, 1994, PHYS REV LETT, V72, P298 ERPENBECK JJ, 1977, STAT MECH B FLORY PJ, 1953, PRINCIPLES POLYM CHE GAN HH, 1998, J CHEM PHYS, V109, P2011 GAN HH, 1999, J CHEM PHYS, V110, P3235 GROSBERG AY, 1994, STAT PHYS MACROMOLEC HSU HP, 2004, MACROMOLECULES, V37, P4658 LI ZM, 2005, LANGMUIR, V21, P7579 LISAL M, 2003, J CHEM PHYS, V119, P4026 LIU JX, 1994, IND ENG CHEM RES, V33, P957 LIVADARU L, 2005, J PHYS CHEM B, V109, P10631 LOWE CP, 2005, J CHEM PHYS, V122 LUNABARCENAS G, 1997, J CHEM PHYS, V107, P10782 NISHIO I, 1979, NATURE, V281, P208 POLSON JM, 1999, PHYS REV E, V60, P3429 POLSON JM, 2000, J CHEM PHYS, V113, P1283 POLSON JM, 2002, J CHEM PHYS, V116, P7244 POLSON JM, 2005, J CHEM PHYS, V122 PORTER JA, 2005, J CHEM PHYS, V122 PRELLBERG T, 2001, J PHYS A-MATH GEN, V34, L599 RAPAPORT DC, 1980, J COMPUT PHYS, V34, P184 RAPAPORT DC, 2003, PHYS REV E 1, V68 SMITH SW, 1997, J COMPUT PHYS, V134, P16 SWISLOW G, 1980, PHYS REV LETT, V44, P796 TAYLOR MP, 2004, J CHEM PHYS, V121, P10757 VASILEVSKAYA VV, 1998, J CHEM PHYS, V109, P5108 ZHOU YQ, 1996, PHYS REV LETT, V77, P2822 ZHOU YQ, 1997, P NATL ACAD SCI USA, V94, P14429 ZHOU YQ, 1999, J MOL BIOL, V293, P917; NR: 41; TC: 0; J9: J CHEM PHYS; PG: 9; GA: 107OVSource type: Electronic(1
Intermolecular potentials in liquid crystals: comparison between simulations and NMR experiments
No full textThe anisotropic intermolecular forces responsible for the orientational ordering in liquid crystals are probed by comparing Monte Carlo (MC) simulations with experimental nuclear magnetic resonance (NMR) results for solutes in nematic liquid crystals. In a special liquid crystal mixture where all long-range interactions are assumed to be minimized, the models for short-range interactions which best fit NMR experimental solute order parameters also best fit solute order parameters from MC simulations of hard ellipsoids. This is taken as an indication that in this special mixture the intermolecular potential is dominated by short-range forces. However, for liquid crystals where long-range interactions are important, simulations of hard ellipsoids with point quadrupoles cannot reproduce even the gross effects observed with experimental NMR data.PT: J; CR: BURNELL EE, 1982, PHYS REV A, V25, P2339 BURNELL EE, 1998, CHEM REV, V98, P2359 CELEBRE G, 1997, MOL PHYS, V92, P1039 DIEHL P, 1974, J MAGN RESON, V14, P260 EMSLEY JW, 1983, MOL PHYS, V49, P1321 EMSLEY JW, 1991, LIQ CRYST, V9, P643 FERRARINI A, 1992, MOL PHYS, V77, P1 KOK MY, 1988, LIQ CRYST, V3, P485 PATEY GN, 1983, CHEM PHYS LETT, V99, P271 PHOTINOS DJ, 1992, J PHYS CHEM-US, V96, P8176 PHOTINOS DJ, 1993, J CHEM PHYS, V98, P10009 POLSON JM, 1996, MOL PHYS, V88, P767 POLSON JM, 1997, PHYS REV E, V55, P4321 SYVITSKI RT, IN PRESS SYVITSKI RT, 1997, CHEM PHYS LETT, V281, P199 TERZIS AF, 1994, MOL PHYS, V83, P847 VANDEREST AJ, 1985, MOL PHYS, V56, P161 VANDEREST AJ, 1987, MOL PHYS, V60, P397 VANDEREST AJ, 1988, J CHEM PHYS, V89, P4657 VANDEREST AJ, 1988, J CHEM SOC F2, V84, P1095 ZIMMERMAN DS, 1993, MOL PHYS, V78, P687; NR: 21; TC: 7; J9: INT J MOD PHYS C; PG: 11; GA: 222HPSource type: Electronic(1
Numerical prediction of the melting curve of n-octane
No full textWe compute the melting curve of n-octane using Molecular Dynamics simulations with a realistic all-atom molecular model. Thermodynamic integration methods are used to calculate the free energy of the system in both the crystalline solid and isotropic liquid phases. The Gibbs-Duhem integration procedure is used to calculate the melting curve, starting with an initial point obtained from the free energy calculations. The calculations yield quantitatively accurate results: in the pressure range of 0-100 MPa, the calculated melting curve deviates by only 3 K from the experimental curve. This deviation falls just within the range of uncertainty of the calculations. (C) 1999 American Institute of Physics. [S0021-9606(99)52128-4].PT: J; CR: ANDERSEN HC, 1983, J COMPUT PHYS, V52, P24 BAEZ LA, 1995, MOL PHYS, V86, P385 BOLHUIS P, 1997, J CHEM PHYS, V106, P666 BOLHUIS PG, 1997, NATURE, V388, P235 CHEN B, 1998, J PHYS CHEM B, V102, P2578 FRENKEL D, 1984, J CHEM PHYS, V81, P3188 FRENKEL D, 1984, PHYS REV LETT, V52, P287 FRENKEL D, 1985, MOL PHYS, V55, P1171 FRENKEL D, 1992, J PHYS-CONDENS MAT, V4, P3053 HABENSCHUSS A, 1989, J CHEM PHYS, V91, P4299 KOFKE DA, 1993, J CHEM PHYS, V98, P4149 KOFKE DA, 1993, MOL PHYS, V78, P1331 KUCHTA B, 1992, PHYS REV B, V45, P5072 KUCHTA B, 1993, PHYS REV B, V47, P14691 KUCHTA B, 1995, J CHEM PHYS, V102, P3349 KUCHTA B, 1997, J CHEM PHYS, V106, P6771 LASO M, 1992, J CHEM PHYS, V97, P2817 MALANOSKI AP, 1997, J CHEM PHYS, V107, P6899 MALANOSKI AP, 1999, J CHEM PHYS, V110, P664 MARTIN MG, 1998, J PHYS CHEM B, V102, P2569 MARTYNA GJ, 1994, J CHEM PHYS, V101, P4177 MARTYNA GJ, 1996, MOL PHYS, V87, P1117 MATHISEN H, 1967, ACTA CHEM SCAND, V21, P9 MEIJER EJ, 1990, J CHEM PHYS, V92, P7570 MOOIJ GCA, 1992, J PHYS CONDENS MATT, V4, L255 NORMAN N, 1961, ACTA CHEM SCAND, V15, P1755 PANAGIOTOPOULOS AZ, 1987, MOL PHYS, V61, P813 PANAGIOTOPOULOS AZ, 1988, MOL PHYS, V63, P527 POLSON JM, UNPUB POLSON JM, 1998, J CHEM PHYS, V109, P318 RYCKAERT JP, 1977, J COMPUT PHYS, V23, P327 RYCKAERT JP, 1985, MOL PHYS, V55, P549 RYCKAERT JP, 1989, MOL PHYS, V67, P957 SCOTT RA, 1966, J CHEM PHYS, V44, P3054 SIEPMANN JI, 1990, MOL PHYS, V70, P1145 SIEPMANN JI, 1992, MOL PHYS, V75, P59 SIEPMANN JI, 1993, NATURE, V365, P330 SINGER SJ, 1990, J CHEM PHYS, V93, P1278 SMIT B, 1989, MOL PHYS, V68, P931 SMIT B, 1995, J CHEM PHYS, V102, P2126 SMITH GD, 1996, J PHYS CHEM-US, V100, P18718 SMITH JC, 1992, J AM CHEM SOC, V114, P801 TOBIAS DJ, 1997, J CHIM PHYS PCB, V94, P1482 TOXVAERD S, 1990, J CHEM PHYS, V93, P4290 TOXVAERD S, 1997, J CHEM PHYS, V107, P5197 TUCKERMAN M, 1992, J CHEM PHYS, V97, P1990 TUCKERMAN ME, 1990, J CHEM PHYS, V93, P1287 VEERMAN JAC, 1990, PHYS REV A, V41, P3237 VEGA C, 1992, J CHEM PHYS, V96, P9060 VEGA C, 1992, J CHEM PHYS, V97, P8543 WATANABE M, 1993, J CHEM PHYS, V99, P8063 WIDOM B, 1963, J CHEM PHYS, V39, P2808 WIDOM B, 1982, J PHYS CHEM-US, V86, P869 WILLIAMS DE, 1967, J CHEM PHYS, V47, P4680 WURFLINGER A, 1975, BER BUNSEN PHYS CHEM, V79, P1195; NR: 55; TC: 30; J9: J CHEM PHYS; PG: 10; GA: 215QQSource type: Electronic(1
Simulation study of the coil-globule transition of a polymer in solvent
No full textMolecular dynamics simulations are used to study the coil-globule transition for a system composed of a bead-spring polymer immersed in an explicitly modeled solvent. Two different versions of the model are used, which are differentiated by the nature of monomer-solvent, solvent-solvent, and nonbonded monomer-monomer interactions. For each case, a model parameter lambda determines the degree of hydrophobicity of the monomers by controlling the degree of energy mismatch between the monomers and solvent particles. We consider a lambda-driven coil-globule transition at constant temperature. The simulations are used to calculate average static structure factors, which are then used to determine the scaling exponents of the system in order to determine the theta-point values lambda(theta) separating the coil from the globule states. For each model we construct coil-globule phase diagrams in terms of lambda and the particle density rho. The results are analyzed in terms of a simple Flory-type theory of the collapse transition. The ratio of lambda(theta) for the two models converges in the high density limit exactly to the value predicted by the theory in the random mixing approximation. Generally, the predicted values of lambda(theta) are in reasonable agreement with the measured values at high rho, though the accuracy improves if the average chain size is calculated using the full probability distribution associated with the polymer-solvent free energy, rather than merely using the value obtained from the minimum of the free energy. (C) 2005 American Institute of Physics.PT: J; CR: ABRAMS CF, 2002, EUROPHYS LETT, V59, P391 ALLEGRA G, 1983, MACROMOLECULES, V16, P1317 ALLEGRA G, 1985, J CHEM PHYS, V83, P397 BAYSAL BM, 2003, MACROMOL THEOR SIMUL, V12, P627 BIRSHTEIN TM, 1991, MACROMOLECULES, V24, P1554 CALVO F, 2002, J CHEM PHYS, V116, P2642 CURRO JG, 1987, J CHEM PHYS, V87, P1842 CURRO JG, 1987, MACROMOLECULES, V20, P1928 CURRO JG, 1991, MACROMOLECULES, V24, P6736 DEGENNES PG, 1975, J PHYS LETT, V36, L55 DESCLOISEAUX J, 1991, POLYM SOLUTION DIJKSTRA M, 1994, J CHEM PHYS, V101, P3179 DIJKSTRA M, 1994, PHYS REV LETT, V72, P298 DIMARZIO EA, 1984, MACROMOLECULES, V17, P969 DOYE JPK, 1998, J CHEM PHYS, V108, P2134 EIZNER EY, 1969, POLYM SCI USSR, V11, P409 FLORY PJ, 1953, PRINCIPLES POLYM CHE FUJIWARA S, 2001, J CHEM PHYS, V114, P6455 GAN HH, 1998, J CHEM PHYS, V109, P2011 GAN HH, 1999, J CHEM PHYS, V110, P3235 GRASSBERGER P, 1995, J CHEM PHYS, V102, P6881 GRASSBERGER P, 1997, PHYS REV E B, V56, P3682 GRAYCE CJ, 1997, J CHEM PHYS, V106, P5171 GROSBERG AY, 1987, SOC SCI REV A, V8, P147 GROSBERG AY, 1992, MACROMOLECULES, V25, P1970 GROSBERG AY, 1992, MACROMOLECULES, V25, P1980 GROSBERG AY, 1992, MACROMOLECULES, V25, P1991 GROSBERG AY, 1992, MACROMOLECULES, V25, P1996 GROSBERG AY, 1994, AIP SERIES POLYM COM HU WB, 1998, J CHEM PHYS, V109, P3686 HUANG L, 2003, J CHEM PHYS, V119, P2432 IRBACK A, 1999, J CHEM PHYS, V110, P12256 IVANOV VA, 1998, J CHEM PHYS, V109, P5659 IVANOV VA, 2000, MACROMOL THEOR SIMUL, V9, P488 KARASAWA N, 1988, J PHYS CHEM-US, V92, P5828 KAVASSALIS TA, 1993, MACROMOLECULES, V26, P4144 KHALATUR PG, 1998, EUR PHYS J B, V5, P881 KHALATUR PG, 1998, MOL PHYS, V93, P555 LAI PY, 1999, MACROMOL THEOR SIMUL, V8, P382 LIANG HJ, 2000, J CHEM PHYS, V113, P4469 LIAO Q, 1999, J CHEM PHYS, V110, P8835 LIFSHITZ IM, 1969, SOV PHYS JETP, V28, P1280 LIFSHITZ IM, 1978, REV MOD PHYS, V50, P683 LUNABARCENAS G, 1997, J CHEM PHYS, V107, P10782 MA JP, 1995, J CHEM PHYS, V103, P2615 MENDEZ S, 2001, J CHEM PHYS, V115, P5669 MILCHEV A, 1993, J CHEM PHYS, V99, P4786 MUTHUKUMAR M, 1984, J CHEM PHYS, V81, P6272 NISHIO I, 1979, NATURE, V281, P208 NOGUCHI H, 1998, J CHEM PHYS, V109, P5070 PAUL W, 2001, J CHEM PHYS, V115, P630 POLSON JM, 1999, PHYS REV E, V60, P3429 POLSON JM, 2000, J CHEM PHYS, V113, P1283 POLSON JM, 2002, J CHEM PHYS, V116, P7244 PTITSYN OB, 1965, BIOFIZIKA, V10, P1 PTITSYN OB, 1968, J POLYMER SCI C, V16, P3509 RUBIO AM, 1995, J CHEM PHYS, V102, P2277 SANCHEZ IC, 1979, MACROMOLECULES, V12, P980 SCHWEIZER KS, 1987, PHYS REV LETT, V58, P246 SCHWEIZER KS, 1994, ADV POLYM SCI, V116, P321 SCHWEIZER KS, 1997, ADV CHEM PHYS, V98, P1 SOKAL A, 1995, MONTE CARLO MOL DYNA STOCKMAYER WH, 1960, MAKROMOL CHEM, V35, P54 SUEN JKC, 1997, J CHEM PHYS, V106, P1288 SWISLOW G, 1980, PHYS REV LETT, V44, P796 SZLEIFER I, 1992, J CHEM PHYS, V97, P6802 TANAKA G, 1995, MACROMOLECULES, V28, P1049 TANAKA G, 1996, MACROMOL THEOR SIMUL, V5, P499 TAYLOR MP, 1995, MOL PHYS, V86, P73 TAYLOR MP, 1996, J CHEM PHYS, V104, P4835 TAYLOR MP, 2001, J CHEM PHYS, V114, P6472 TAYLOR MP, 2003, J CHEM PHYS, V118, P883 VANDERSCHOOT P, 1998, MACROMOLECULES, V31, P4635 VASILEVSKAYA VV, 1998, J CHEM PHYS, V109, P5108 VASILEVSKAYA VV, 1998, J CHEM PHYS, V109, P5119 WITTKOP M, 1996, J CHEM PHYS, V104, P3373 ZHOU YQ, 1997, J CHEM PHYS, V107, P10691; NR: 77; TC: 5; J9: J CHEM PHYS; PG: 11; GA: 893DHSource type: Electronic(1
Finite-size corrections to the free energies of crystalline solids
No full textWe analyze the finite-size corrections to the free energy of crystals with a fixed center of mass. When we explicitly correct for the leading (ln N/N) corrections, the remaining free energy is found to depend linearly on 1/N. Extrapolating to the thermodynamic limit (N → ∞), we estimate the free energy of a defect-free crystal of particles interacting through an r–12 potential. We also estimate the free energy of perfect hard-sphere crystal near coexistence: at ρσ3 = 1.0409, the excess free energy of a defect-free hard-sphere crystal is 5.918 89(4)kT per particle. This, however, is not the free energy of an equilibrium hard-sphere crystal. The presence of a finite concentration of vacancies results in a reduction of the free energy that is some two orders of magnitude larger than the present error estimate
Girl Guides meet Lady Alexander in Polson Park
No full textLady Alexander was the wife of the Governor General
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