cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
@Apogee
Creators: name: WAITE, CLEA
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Since prehistoric times, the oldest “film,” the progression of the stars and planets across the night sky, has engaged humanity as a shared experience and inspired the construction of public viewing spaces. Prehistoric sky monuments such as Stonehenge and Avebury merge built space and image space, engaging the audience with a tangible experience of the poetic as inseparable from the real. Collective rituals were embodied within these monuments and experienced by the bodies of the supplicants who traversed them. In the recent past, comparable phenomena were experienced by bodies immersed within the shared and darkened spaces of planetariums, movie theaters, arenas, and temples of all sorts. Our youngest experience in the year 2020 is of common rituals enacted with an unnatural removal of the body, as concerts attended as avatars and gatherings embodied only by photons. Ritual occurs as disembodied immersion, private experiences in the dark, safely removed from the gaseous effusions of our fellow humans. We interact within a shimmering duality of absented presence, a paradox of simultaneous reality and virtuality in which the space-time of the subject is simultaneously shared and immutably separate from the viewer. Is this our new Eden of bodies at apogee, life as cinema connected by the artificial light of monitors and head-mounted displays, removed both from the proprioceptions of our own bodies and the rudimentary experience of shared space? In this dark Eden, the other is only speculative.
Molecular Dynamic study of model two-dimensional systems involving Janus dumbbells and spherical particles
Creators: name: Baran, L.
name: Dabrowska, K.
name: Rzysko, W.
name: Sokolowski, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have performed an extensive constant temperature Molecular Dynamics study of two-dimensional systems involving Janus dumbbells and spherical particles. Janus dumbbells have been modelled as two spheres, labeled 1 and 2, joined together via harmonic bonds. Sphere 1 of a selected Janus dumbbell attracts the spheres of the same kind on other Janus dumbbells, while the interactions between the pairs 1-1 and 1-2 were repulsive. On the other hand, the spherical particles are attracted by centers 2 and repelled by the centers 1 of Janus particles. We have shown that the structure of oriented phases that can be formed in the system depends on the bond length of Janus dumbbells and the ratio of the number of spherical particles to the number of Janus dumbbells in the system. The presence of spherical particles is necessary to develop oriented phases. For the assumed model, the formation of oriented phases in the system depends on the concentration of spherical particles. Equal numbers of Janus and spherical particles create optimal conditions for the formation of lamellar phases.
description: 20 pages, 10 figures
Principles of spintronic THz emitters
Creators: name: Wu, Weipeng
name: Ameyaw, Charles Yaw
name: Doty, Matthew F.
name: Jungfleisch, M. Benjamin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Significant progress has been made in answering fundamental questions about how and, more importantly, on what time scales interactions between electrons, spins, and phonons occur in solid state materials. These complex interactions are leading to the first real applications of terahertz (THz) spintronics: THz emitters that can compete with traditional THz sources and provide additional functionalities enabled by the spin degree of freedom. This tutorial article is intended to provide the background necessary to understand, use, and improve THz spintronic emitters. A particular focus is the introduction of the physical effects that underlie the operation of spintronic THz emitters. These effects were, for the most part, first discovered through traditional spin-transport and spintronic studies. We therefore begin with a review of the historical background and current theoretical understanding of ultrafast spin physics that has been developed over the past twenty-five years. We then discuss standard experimental techniques for the characterization of spintronic THz emitters and - more broadly - ultrafast magnetic phenomena. We next present the principles and methods of the synthesis and fabrication of various types of spintronic THz emitters. Finally, we review recent developments in this exciting field including the integration of novel material platforms such as topological insulators as well as antiferromagnets and materials with unconventional spin textures.
Dark Knowledge
Creators: name: Henschke, Chris
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: In this paper, I shall discuss the concept of dark knowledge as a way to enframe scientific insights into the most fundamental forms matter and energy, and how such knowledge has been abused by humanity, epitomised by the “awful extravagance” of the atom bomb. During a decade of my own collaborations with nuclear and particle physicists, I have felt uneasy working near the dark side of such scientific and technological developments. In response to these conflicts, in 2019 I developed a site-specific installation, called “Demon Core”. This work was commissioned by DARK MOFO, and set up in Hobart’s Queen Victoria Powder Magazine, a munitions building that was literally designed to explode. The installation manifested the dangers of nuclear knowledge, inspired by an incident that happened at the Los Alamos laboratory in 1946, when an experimental plutonium orb, called the Demon Core, initially made for a third nuclear attack on Japan, accidently went supercritical causing a fatal nuclear chain reaction.The “Demon Core” installation used uranium ore and americium (produced in nuclear reactors) to trigger and control the installation, with cymatic luminescent liquids producing ultraviolet "Cherenkov blues" effects, plus hybridised scientific equipment incorporating a 32 channel sound system and finely tuned subwoofers resonating the entire space. Working with radioactive materials brough up both unique OH&S challenges, but also personal ethical dilemas. Such artworks become an interface between us and the fundamental forces of nature; but also they raise questions about the dangers of such knowledge, like the biblical Eve biting into that irresistible forbidden fruit. As Robert Oppenheimer said after the first atomic test, "physicists have known sin; and this is a knowledge which they cannot lose”.
Bond excitations in the pseudogap phase of the Hubbard Model
Creators: name: Macridin, Alexandru
name: Jarrell, Mark
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the dynamical cluster approximation, we calculate the correlation functions associated with the nearest neighbor bond operator which measure the z component of the spin exchange in the two-dimensional Hubbard model with $U$ equal to the bandwidth. We find that in the pseudogap region, the local bond susceptibility diverges at T=0. This shows the existence of degenerate bond spin excitation and implies quantum criticality and bond order formation when long range correlations are considered. The strong correlation between excitations on parallel neighboring bonds suggests bond singlet dimerization. The suppression of divergence for $n< \approx 0.78$ implies that tor these model parameters this is quantum critical point which separates the unconventional pseudogap region characterized by bond order from a conventional Fermi liquid.
description: 5 pages, 5 figures
High-precision star formation efficiency measurements in nearby clouds
Creators: name: Hu, Zipeng
name: Krumholz, Mark R.
name: Pokhrel, Riwaj
name: Gutermuth, Robert A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: On average molecular clouds convert only a small fraction epsilon_ff of their mass into stars per free-fall time, but differing star formation theories make contrasting claims for how this low mean efficiency is achieved. To test these theories, we need precise measurements of both the mean value and the scatter of epsilon_ff, but high-precision measurements have been difficult because they require determining cloud volume densities, from which we can calculate free-fall times. Until recently, most density estimates assume clouds as uniform spheres, while their real structures are often filamentary and highly non-uniform, yielding systematic errors in epsilon_ff estimates and smearing real cloud-to-cloud variations. We recently developed a theoretical model to reduce this error by using column density distributions in clouds to produce more accurate volume density estimates. In this letter, we apply this model to recent observations of 12 nearby molecular clouds. Compared to earlier analyses, our method reduces the typical dispersion of epsilon_ff within individual clouds from 0.35 dex to 0.31 dex, and decreases the median value of epsilon_ff over all clouds from ~ 0.02 to ~ 0.01. However, we find no significant change in the ~ 0.2 dex cloud-to-cloud dispersion of epsilon_ff, suggesting the measured dispersions reflect real structural differences between clouds.
description: 5 pages, 4 figures, submitted to MNRAS Letter
Twin Spectres OR An Unintended Doubling
Creators: name: PAINE, KATIE
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: I wish to propose a fictocritical text that imagines the spectral afterlife of the destroyed or discarded sign and its capacity to destabilise. The text considers the period after the fall of the Roman Empire thought to have birthed the ‘Dark Ages’. Troops departed the city of Londinium– excavations suggest a rapid exodus of inhabitants. Over time a city known as Lundenwic was developed outside of Londinium’s ruined Roman walls. The old city remained abandoned. This place for the living had become a spectre of itself; the imperialist ‘Eden’ whose conception signified the Empire’s project of civilisation was swallowed back into obscurity. Locals forgot the city’s history: stories abounded that it was built by giants or inhabited with ghouls. People resided beside this forgotten place in an ongoing act of unconscious haunting.The text explores how misunderstood signs discarded by the Empire birthed monstrous narratives within subsequent communities. As this material disseminates it becomes dislocated from its original source–adopting whole new interpretations or carrying with it the burden of thousands of simultaneous meanings. The ghost of a person might be separated from the world of the living and yet their very existence is manifest because they cannot let go of the past. An image or text, bereft of its original referent, might be imagined as a ghost. The text discusses 'the spectral sign' which sits against linear time, it is not beholden to the same earthly conditions as others and subsequently can subvert the laws of knowledge.
The Post-traumatic Urbanist
Creators: name: Manley, David
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: The Post Traumatic Urbanist is a body of work that interrogates architecture’s relationship with trauma and the saturation of media images. The work links Paul Virilio's assertion that technology and in particular the speed and accelerative nature of the image has its own inherent violence, to Roger Luckhurst's thesis on the intersection of trauma and photography. I use the built environment as a conduit to explore these ideas and to develop my thesis that architecture has reasserted its place in our collective conscious as a potential space for violence. On a personal level, The Post Traumatic Urbanist series operates for me as a form of clinical diagnosis and therapy, a decelerative eddy in the torrent of a contemporary media culture.
@Apogee
Creators: name: WAITE, CLEA
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Since prehistoric times, the oldest “film,” the progression of the stars and planets across the night sky, has engaged humanity as a shared experience and inspired the construction of public viewing spaces. Prehistoric sky monuments such as Stonehenge and Avebury merge built space and image space, engaging the audience with a tangible experience of the poetic as inseparable from the real. Collective rituals were embodied within these monuments and experienced by the bodies of the supplicants who traversed them. In the recent past, comparable phenomena were experienced by bodies immersed within the shared and darkened spaces of planetariums, movie theaters, arenas, and temples of all sorts. Our youngest experience in the year 2020 is of common rituals enacted with an unnatural removal of the body, as concerts attended as avatars and gatherings embodied only by photons. Ritual occurs as disembodied immersion, private experiences in the dark, safely removed from the gaseous effusions of our fellow humans. We interact within a shimmering duality of absented presence, a paradox of simultaneous reality and virtuality in which the space-time of the subject is simultaneously shared and immutably separate from the viewer. Is this our new Eden of bodies at apogee, life as cinema connected by the artificial light of monitors and head-mounted displays, removed both from the proprioceptions of our own bodies and the rudimentary experience of shared space? In this dark Eden, the other is only speculative.
Mean-field effects in the Galloway-Proctor flow
Creators: name: Rädler, Karl-Heinz
name: Brandenburg, Axel
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The coefficients defining the mean electromotive force in a Galloway-Proctor flow are determined. This flow shows a two-dimensional pattern and is helical. The pattern wobbles in its plane. Apart from one exception a circular motion of the flow pattern is assumed. This corresponds to one of the cases considered recently by Courvoisier, Hughes and Tobias (2006, Phys. Rev. Lett., 96, 034503). An analytic theory of the alpha effect and related effects in this flow is developed within the second-order correlation approximation and a corresponding fourth-order approximation. In the validity range of these approximations there is an alpha effect but no gamma effect, or pumping effect. Numerical results obtained with the test-field method, which are independent of these approximations, confirm the results for alpha and show that gamma is in general nonzero. Both alpha and gamma show a complex dependency on the magnetic Reynolds number and other parameters that define the flow, that is, amplitude and frequency of the wobbling motion. Some results for the magnetic diffusivity eta_t and a related quantity are given, too. Finally a result for alpha in the case of a randomly varying flow without the aforementioned circular motion is presented. This flow may be a more appropriate model for studying the alpha effect and related effects in flows that are statistical isotropic in a plane.
description: 12 pages, 14 figures, submitted to MNRAS
Seeing in the Dark: A Talismanic Hack into the Carbon Footprint of ICT
Creators: name: MARKS, LAURA U
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: This talk will argue in favor of seeing in the dark. To expect that media and other commodities are readily available for consumption ignores their costs, to people and the planet, not calculated in their price. I will argue it is more healthy, for individuals and the planet, to treat media works as precious. I will share my recent findings that streaming media are responsible for an alarming proportion of global greenhouse gas emissions. For the majority of platforms that run on fossil fuels, the ethical option is to stream less, and in lower resolution and high compression. Viewers to interpret, or unfold, the media work, at the same time resisting the corporate siren song of high resolution. Such acts of active interpretation have a deep history in medieval Islamic and European arts of encryption and magic, for which magicians developed closely guarded secret practices. Developing similar skills increases our collective powers and can protect us from contemporary surveillance.
Resonant scattering effect in spectroscopies of interacting atomic gases
Creators: name: Leskinen, M. J.
name: Kajala, J.
name: Kinnunen, J. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider spectroscopies of strongly interacting atomic gases, and we propose a model for describing the coupling between quasiparticles and gapless phonon-like modes. Our model explains features in a wide range of different experiments in both fermionic and bosonic atom gases in various spectroscopic methods.
description: Minor revision. Added 2 pages and 2 figures
The EPR correlation in Kerr-Newman spacetime
Creators: name: Said, Jackson Levi
name: Adami, Kristian Zarb
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The EPR correlation has become an integral part of quantum communications as has general relativity in classical communication theory, however when combined an apparent deterioration is observed for spin states. We consider appropriate changes in directions of measurement to exploit full EPR entanglement for a pair of particles and show that it can be deduced only up to the outer even horizon of a Kerr-Newman black hole, even in the case of freely falling observer.
description: 8 pages, 3 figures
The lipid-water interaction in lyotropic measophases : an NMR study
Creators: name: Abdolall, Khaled
Publisher: name: University of British Columbia
Year: 2010

description: A nuclear magnetic resonance study of the lipid-water interaction has been carried out in the lamellar mesophase of the sodium laurate-water system. Deuterium quadrupole splittings and spin lattice relaxation time measurements of perdeuterated fatty acid chains and the quadrupole splittings of water (D₂O) and the sodium counter ion are used to study the effects of this interaction. The results indicate that the lipid-water interaction has a strong influence on the conformations and motions of the. lipid chains, particularly those chain segments near the lipid water interface. The details of this interaction are not included in the theories which attempt to explain hydrocarbon chain ordering in bilayer membranes in terms of chain-chain (or lipid-lipid) interactions only. A thermodynamic analysis of the results indicates that a description of the ordering of the hydrocarbon chains entirely in terms of chain-chain interactions is not complete, and that a complete theory should include the lipid-water interaction explicitly. The first experimental evidence for a spin lattice relaxation mechanism between water protons and lipid protons in a lipid water system is also reported. The effect of isotopic modification of the methylene hydrogen nuclei on the proton spin lattice relaxation rate in H₂O and also of the effect of the isotope modification of the water on the relaxation rates of the lipid protons is investigated. Although the measurements show that protons deep in the bilayer make a substantial contribution to the spin-lattice relaxation rate of the water protons, a detailed theoretical analysis demonstrates that the experimental results can be accounted for without invoking deep penetration of the water in the bilayer.
Evidence for two distinct scales of current flow in polycrystalline Sm and Nd iron oxypnictides
Creators: name: Yamamoto, A.
name: Polyanskii, A. A.
name: Jiang, J.
name: Kametani, F.
name: Tarantini, C.
name: Hunte, F.
name: Jaroszynski, J.
name: Hellstrom, E. E.
name: Lee, P. J.
name: Gurevich, A.
name: Larbalestier, D. C.
name: Ren, Z. A.
name: Yang, J.
name: Dong, X. L.
name: Lu, W.
name: Zhao, Z. X.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Early studies have found quasi-reversible magnetization curves in polycrystalline bulk rare-earth iron oxypnictides that suggest either wide-spread obstacles to intergranular current or very weak vortex pinning. In the present study of polycrystalline samarium and neodymium rare-earth iron oxypnictide samples made by high pressure synthesis, the hysteretic magnetization is significantly enhanced. Magneto optical imaging and study of the field dependence of the remanent magnetization as a function of particle size both show that global currents over the whole sample do exist but that the intergranular and intragranular current densities have distinctively different temperature dependences and differ in magnitude by about 1000. Assuming that the highest current density loops are restricted to circulation only within grains leads to values of ~5 MA/cm2 at 5 K and self field, while whole-sample current densities, though two orders of magnitude lower are 1000-10000 A/cm2, some two orders of magnitude higher than in random polycrystalline cuprates. We cannot yet be certain whether this large difference in global and intragrain current density is intrinsic to the oxypnictides or due to extrinsic barriers to current flow, because the samples contain significant second phase, some of which wets the grain boundaries and produces evidences of SNS proximity effect in the whole sample critical current.
description: 28 pages, 14 figures
Disgust Is Life
Creators: name: Morton, Timothy
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: What happens when we take the human, and more specifically the bourgeois human, blinkers off the experience we call beauty? We realize that it is always fringed by disgust. We already have the right emotional chemical for being “scientific”—the mode in which we will care more sincerely for nonhuman beings. It’s called, rather surprisingly, ennui, an oscillation between enjoyment and disgust. This is a twelve-inch remix way of thinking about beauty—expanded for an ecological age in which it is clear that beauty was never a human-only affair. That’s a perfectly logical thing to say about the arguments on beauty of Immanuel Kant. I will be showing how Kantian beauty is far more strange and radical than we have often thought, and why beauty rather than the sublime is the path towards a more ecologically attuned art.
Seeing in the Dark: A Talismanic Hack into the Carbon Footprint of ICT
Creators: name: MARKS, LAURA U
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: This talk will argue in favor of seeing in the dark. To expect that media and other commodities are readily available for consumption ignores their costs, to people and the planet, not calculated in their price. I will argue it is more healthy, for individuals and the planet, to treat media works as precious. I will share my recent findings that streaming media are responsible for an alarming proportion of global greenhouse gas emissions. For the majority of platforms that run on fossil fuels, the ethical option is to stream less, and in lower resolution and high compression. Viewers to interpret, or unfold, the media work, at the same time resisting the corporate siren song of high resolution. Such acts of active interpretation have a deep history in medieval Islamic and European arts of encryption and magic, for which magicians developed closely guarded secret practices. Developing similar skills increases our collective powers and can protect us from contemporary surveillance.
The Properties of Early-type Stars in the Magellanic Clouds
Creators: name: Evans, Christopher J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The past decade has witnessed impressive progress in our understanding of the physical properties of massive stars in the Magellanic Clouds, and how they compare to their cousins in the Galaxy. I summarise new results in this field, including evidence for reduced mass-loss rates and faster stellar rotational velocities in the Clouds, and their present-day compositions. I also discuss the stellar temperature scale, emphasizing its dependence on metallicity across the entire upper-part of the Hertzsprung-Russell diagram.
description: 12 pages, invited review at IAU Symposium 256, van Loon J.Th. & Oliviera J.M., eds., Cambridge Univ. Press, v2: minor corrections
Dark Deviations and Timely Digressions
Creators: name: VULCAN, JULIE
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: If Dark Eden is a spectral landscape and the material for a new culture, it is not so because of any sense of descent from the grand narrative of enlightened homo. In that story the narrative is working exactly as it is meant to, operating in a space of twenty-four hour illumination and productivity tied up in the visually biased “voraciousness of contemporary capitalism.”(1) Within that saturated landscape the dark has been white-washed and the histogram is leaning a little too heavily to the right. My paper draws from my recent thesis engaging the conceptual practice of ‘going dark’ as a methodology and tool of intervention. The accompanying social media project delivered dark text tiles, images and audio detailing a speculative fiction randomly transmitted via a sequence of hashtags to co-mingle alongside bright images of selfies, food, cats, and news. My project explores the case for dark as a thing with “thing-power”(2) and urges for a reorientation within its sphere of influence rather than separate or outside. To go dark is to engage in steady observation and a slow liveliness, to embrace the unfamiliar and attend to a practice of deviation indifferent to the temporal scales of productivity and possessive individualism. In this paper I offer the inverse and propose any notion of a current dark Eden is not because it is dark but rather because it is blazing. Simultaneously I suggest the bright Eden of paradise was always dark, always a multi-sensory affair entangled in relational and sensorial affects.1. Jonathan Crary, 24/7: Late Capitalism and the Ends of Sleep, (London: Verso, 2014), 10.2. Jane Bennett, “The Force of Things: Steps Toward an Ecology of Matter,” Political Theory 32, no. 3 (June 2004), 347-372.
An atomic decomposition of the Hajłasz Sobolev space $\Mone$ on manifolds
Creators: name: Badr, Nadine
name: Dafni, Galia
Publisher: name: arXiv
Year: 2009
Subjects: subject: Differential Geometry (math.DG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Several possible notions of Hardy-Sobolev spaces on a Riemannian manifold with a doubling measure are considered. Under the assumption of a Poincaré inequality, the space $\Mone$, defined by Hajłasz, is identified with a Hardy-Sobolev space defined in terms of atoms. Decomposition results are proved for both the homogeneous and the nonhomogeneous spaces.
Careful Whispers of The Butcher, or the Dark Image of Thought
Creators: name: stephen, loo
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: Stephen Loo hypothesises the matter of the dark space-time between frames of the cinematic that animate our computational and algorithmic worlds. Through two recent becoming-minoritarian (after Deleuze) sound-food social practice projects Careful Whipsers with the Autonomous Sensory Meridian Orchestra (Melbourne, 2018) and The Butcher of Nang Loeng (Bangkok, 2019), while riffing on Baradian black hole materialism, he will discuss the performing philosophy in dark of night, cut through with gloaming (after Tawa) after-images left by lightning bolts that connect neuropsychology, posthuman agency, rights and justice, and semblances of life. Take these / wings and learn to fly.
Algebraic coarsening in voter models with intermediate states
Creators: name: Dall'Asta, Luca
name: Galla, Tobias
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: The introduction of intermediate states in the dynamics of the voter model modifies the ordering process and restores an effective surface tension. The logarithmic coarsening of the conventional voter model in two dimensions is eliminated in favour of an algebraic decay of the density of interfaces with time, compatible with Model A dynamics at low temperatures. This phenomenon is addressed by deriving Langevin equations for the dynamics of appropriately defined continuous fields. These equations are analyzed using field theoretical arguments and by means of a recently proposed numerical technique for the integration of stochastic equations with multiplicative noise. We find good agreement with lattice simulations of the microscopic model.
description: 11 pages, 5 figures; minor typos corrected
Estimating divergence functionals and the likelihood ratio by convex risk minimization
Creators: name: Nguyen, XuanLong
name: Wainwright, Martin J.
name: Jordan, Michael I.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistics Theory (math.ST)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We develop and analyze $M$-estimation methods for divergence functionals and the likelihood ratios of two probability distributions. Our method is based on a non-asymptotic variational characterization of $f$-divergences, which allows the problem of estimating divergences to be tackled via convex empirical risk optimization. The resulting estimators are simple to implement, requiring only the solution of standard convex programs. We present an analysis of consistency and convergence for these estimators. Given conditions only on the ratios of densities, we show that our estimators can achieve optimal minimax rates for the likelihood ratio and the divergence functionals in certain regimes. We derive an efficient optimization algorithm for computing our estimates, and illustrate their convergence behavior and practical viability by simulations.
description: 28 pages
Iconographic Necromancy
Creators: name: Ramirez, Diego
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: This text frames two contemporary demonic monuments as zombie monoliths within the area of expanded image, for they resuscitate the iconographic corpse of their idols while leaving a pious entity behind. These are Pazuzu (2008) by artist Roberto Cuoghi, a 5.7-meter reproduction of a small talisman depicting Mesopotamian demon Pazuzu, originally shown at the Castello Di Rivoli. And The Statue of Baphomet (2015) by the non-theistic organisation The Satanic Temple, a 2.6-meter public monument to the occult icon Baphomet rejected by Oklahoma State Capitol and Arkansas State Capitol in the USA. Both statues are post-secular, for Cuoghi conjured the dead image of Pazuzu to meditate on the fall of Empire, while The Satanic Temple devised The Statue of Baphomet as a ploy against a monument to the Ten Commandments sitting on State Capitol; advocating for the separation of church and state. Thus, their cadavers stand erect yet vacant, failing to summon the supernatural beings they represent.I draw from Hans Belting Anthropology of Images to argue that Pazuzu and The Statue of Baphomet resuscitate the body, but not the soul, of these idols in a necromancy that typifies Dark Eden. Indeed, Belting separates the anatomy of the image into image, medium and the receptive body—the first of which mirrors the split between soul and body. Teasing out the connotations of this framework, this text touches on practices of resurrection and the figure of the undead to put forth a semiotic necromancy as the darkness of the contemporary image.
Navigating Dark Eden
Creators: name: PARRY, WARREN
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: In this paper I present insights and imagery from my research that is relevant to both researchers and artists, showing how visualised data, gathered from the darkest human experiences, illuminates what it is like to dwell in Dark Eden. A glimpse of a way in, and of a way out is offered by crossing the boundaries between art and science. Mapping over 200,000 people’s personality dynamics along with their everyday experiences, I discovered that Aesthetic Experience is extremely high where fear and situational risks are also at their highest, and all aspects of agency - purpose, engagement and resilience - are at their lowest ebb. How can this be? And what does it tell us about the role of Aesthetic Experience in navigating Dark Eden? Is it a blessing or a curse? A source of inspiration and hope in an almost impossible situation? Or held in the clutches of fear, does it simply drive you crazy? Informed by the writings of J Dewey, J Drucker and L Manovich, my research uses interactive psychological landscapes to give visibility to experiences that are not normally accessible. Pathways can be found, not by flooding Dark Eden with light, but by becoming accustomed with the darkness itself where the transformational role of Aesthetic Experience plays out.
Dark Knowledge
Creators: name: Henschke, Chris
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: In this paper, I shall discuss the concept of dark knowledge as a way to enframe scientific insights into the most fundamental forms matter and energy, and how such knowledge has been abused by humanity, epitomised by the “awful extravagance” of the atom bomb. During a decade of my own collaborations with nuclear and particle physicists, I have felt uneasy working near the dark side of such scientific and technological developments. In response to these conflicts, in 2019 I developed a site-specific installation, called “Demon Core”. This work was commissioned by DARK MOFO, and set up in Hobart’s Queen Victoria Powder Magazine, a munitions building that was literally designed to explode. The installation manifested the dangers of nuclear knowledge, inspired by an incident that happened at the Los Alamos laboratory in 1946, when an experimental plutonium orb, called the Demon Core, initially made for a third nuclear attack on Japan, accidently went supercritical causing a fatal nuclear chain reaction.The “Demon Core” installation used uranium ore and americium (produced in nuclear reactors) to trigger and control the installation, with cymatic luminescent liquids producing ultraviolet "Cherenkov blues" effects, plus hybridised scientific equipment incorporating a 32 channel sound system and finely tuned subwoofers resonating the entire space. Working with radioactive materials brough up both unique OH&S challenges, but also personal ethical dilemas. Such artworks become an interface between us and the fundamental forces of nature; but also they raise questions about the dangers of such knowledge, like the biblical Eve biting into that irresistible forbidden fruit. As Robert Oppenheimer said after the first atomic test, "physicists have known sin; and this is a knowledge which they cannot lose”.
Situating Images
Creators: name: Roberts, Margaret
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: This paper will discuss my exploration of the multiple nature of places in Western culture(s) in the 2020 artwork 'We went to school here'.(1) I used this work to draw on the gallery floor the footprint of the school building that previously occupied that same place, so that ex-school students could bring together their remembered images of it with the actual place in which it existed. It proposed that both the gallery and the school could briefly co-exist both visibly and actually: the gallery visible in the normal way to sighted people who actually entered it, and the school visible to those actually entering that same space but with remembered images of when they occupied it as a school.It will also discuss its optimistic proposal of a conjunction of remembered image and actual place as one way of challenging modernity’s devaluation of place (the latter discussed using accounts by writers as apparently diverse as Jane Bennett and Anthony Giddens).It intends to remind people that places have histories, even if, in the absence of traditional personal recognition, the location of earlier occupations sometimes needs to be confirmed with modern technical data, as is the case with this work. Most importantly, in having histories, places become more than their present occupation.The paper will also discuss the role of explanatory text that accompanies artwork such as this, because, despite occupying the whole gallery, the work itself is like its intended content in being invisible to most visitors.(1) http://margaretroberts.org/Wewent.html
РОЛЬ ДИАЛЕКТИКИ В СТАНОВЛЕНИИ ЕВРАЗИЙСКОЙ ИДЕНТИЧНОСТИ
Creators: name: Elkhova, Oxana
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 500318
subject: Philosophy of specific cultures (incl. comparative philosophy)

description:  In the article, the author emphasizes that dialectics is not an outdated  concept, but, on the contrary, helps us in forming an adequate vision of the world and  practical interaction with it. Dialectics, being a powerful tool for analytical thinking,  plays an important role in the philosophical understanding of integration processes on  the Eurasian platform. Thus, the formation of the Eurasian identity must be  considered in the dialectic of the individual, particular and general. The process of  formation of the Eurasian identity has begun its development and will continue in the  future.
Radiation driven instabilities in stellar winds
Creators: name: Carlberg, Raymond G.
Publisher: name: University of British Columbia
Year: 2010

description: This thesis investigates the quantitative nature of the variability which is present in the stellar winds of high luminosity early type stars. A program of optical observations with high time and spectral resolution was designed to provide quantitative information on the nature of the fluctuations. These observations found no optical variability over a time period of six hours and hence restrict the variability over this period to size scales of less than 5x1011 cm, but do confirm the variations on time scales exceeding one day. A class of X-ray sources comprised of a neutron star orbiting a star with a strong stellar wind provides another source of information on the variability of stellar winds. A theory of accretion onto a neutron star was developed which is used with X-ray intensity data to derive estimates of the density and velocity of the stellar wind. This analysis performed on Cen X-3 suggests that the velocity in the stellar wind increases as the wind density increases. A theoretical analysis of the stability of a stellar wind is made to determine whether the variability may originate in the wind itself. Two types of instability are founds those that amplify pre-existing disturbances, and absolute instabilities which can grow from random motions within the gas. It is found that short wavelength disturbances (<10⁴ cm) are always strongly damped by conduction, and long wavelength ones (>10¹¹ cm) are damped by radiation if the gas is thermally stable, that is if the net radiative energy loss increases with temperature. Intermediate wavelengths of about 10⁸⁻⁹ cm are usually subject to an amplification due to the density gradient of the wind. The radiation acceleration amplifies disturbances of scales 10⁷ to 10¹¹ ca. Absolute instabilities are present if the gas is thermally unstable, if the flow is deccelerating, or if the gas has a temperature of several million degrees. On the basis of the information derived on stellar wind stability it is proposed that a complete theory should be based on the assumption that the wind is a nonstationary flow.
Nonlocal chiral quark models with wavefunction renormalization: sigma properties and π-πscattering parameters
Creators: name: Noguera, S.
name: Scoccola, N. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze the sigma meson mass and width together with the pion-pion scattering parameters in the context of non-local chiral quark models with wave-function renormalization (WFR). We consider both non-local interactions based on the frequently used exponential form factor, and on fits to the mass and renormalization functions obtained in lattice calculations. In the case of the sigma properties we obtain results which are less dependent on the parameterization than in the standard local NJL model, and which are in reasonable agreement with the recently reported empirical values. We also show that the inclusion of the WFR tend to improve the description of the $π-π$ scattering parameters, with the lattice inspired parameterization providing the best overall results. Finally, we analyze the connection of the non-local quark models discussed here with Chiral Perturbation Theory, and present the model predictions for the low energy constants relevant for $π-π$ scattering to O(4) in the chiral expansion.
description: 15 pages, 1 figure
Topological mass generation in four-dimensional gauge theory
Creators: name: Savvidy, George
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Lagrangian of non-Abelian tensor gauge fields describes the interaction of the Yang-Mills and massless tensor bosons of increasing helicities. We have found a metric-independent gauge invariant density which is a four-dimensional analog of the Chern-Simons density. The Lagrangian augmented by this Chern-Simons-like invariant describes massive Yang-Mills boson, providing a gauge-invariant mass gap for a four-dimensional gauge field theory. We present invariant densities which can provide masses to the high rank tensor bosons.
description: 18 pages, Note added addressing the question of minimal number of derivarives in the cubic vertices for high spin fields, references added
Mental Rotation Data and Statistics for Heimisch, Preuss and Russwinkel, 2023
Creators: name: Preuss, Kai
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 100 Philosophie und Psychologie::150 Psychologie::153 Kognitive Prozesse, Intelligenz
subject: cognitive modeling
subject: spatial cognition
subject: ACT-R
subject: mental rotation
subject: mental spatial transformation

description: Model output from the mental rotation cognitive model, including behavioral and module activity data, as well as R statistics scripts for its analysis. As used for Heimisch, Preuss and Russwinkel (in press). Cognitive Processing Stages in Mental Rotation – How can Cognitive Modelling inform HsMM-EEG models? Neuropsychologia. MR-simulation-input.csv: behavioral data extracted from the original experiments, with only trials included in the accompanying HsMM analysis cognitive_stage_markers.txt: overview over model markers noting significant model events hsmm-plot.r: R script for fast plotting of HsMM data activityplots.r: R script for plotting and statistical analysis of behavioral, cognitive model and HsMM data
A Postcard from Venice: Escaping the Contemporary so as to Pollinate the Earth
Creators: name: Moran, Thomas
name: Transdisciplinary Imaging Conference, Dark Eden
Publisher: name: figshare
Year: 2021
Subjects: subject: 190104 Visual Cultures
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: The following paper is based on the text of a postcard sent during the Venice Biennial of 2019 which arrived at my home in the Antipodes a year later at the height of The Virus. On a planet in which technology appears to have completely outstripped the creative capacities of the human being, we must face an important question: is Contemporary Art obsolete? Being stung by a bee would be far more enlightening. This paper will argue that while “Contemporary Art” may disappear, aesthetics understood as a “science of the beautiful”, is well and truly alive.I will begin with an investigation of the term and practise of “New Media Art”, focusing specifically on two works exhibited at the 2019 Venice Biennial. These works, Interesting World (2019) by Fei Jun and I Can’t Help Myself (2019) by Sun Yuan & Peng Yu are emblematic of the spectacular use of digital technologies, namely algorithmic composition and automated intelligence. These works, as enchanting as they are, remain subject to the planned obsolescence built into the ‘contemporary’ blockbuster show.I will then draw on three works in archaic media forms, namely the aphoristic philosophical text Pollen (1798) by Novalis, the painting An Old Bee Farm (1900) by Clara Southern and the speculative science fiction novel The Glass Bees (1957) by Ernst Jünger. All three artworks consider technology and art as coevolutionary processes which can foster and stimulate creativity. In order to follow Novalis in his call to “scatter seeds…[and] pollinate the Earth” we must finally abandon the dead name of “Contemporary Art” in order for the science of the aesthetic to bloom once more in places we have ceased to look and in a buzzing we have forgotten how to hear.