cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cryogenic cooling with cryocooler on a rotating system
Creators: name: Oguri, Shugo
name: Choi, Jihoon
name: Kawai, Masanori
name: Tajima, Osamu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We developed a system that continuously maintains a cryocooler for long periods on a rotating table. A cryostat that holds the cryocooler is set on the table. A compressor is located on the ground and supplies high-purity (> 99.999%) and high-pressure (1.7 MPa) helium gas and electricity to the cryocooler. The operation of the cryocooler and other instruments requires the development of interface components between the ground and rotating table. A combination of access holes at the center of the table and two rotary joints allows simultaneous circulation of electricity and helium gas. The developed system provides two innovative functions under the rotating condition; cooling from room temperature and the maintenance of a cold condition for long periods. We have confirmed these abilities as well as temperature stability under a condition of continuous rotation at 20 revolutions per minute. The developed system can be applied in various fields; e.g., in tests of Lorentz invariance, searches for axion, radio astronomy and cosmology, and application of radar systems. In particular, there is a plan to use this system for a radio telescope observing cosmic microwave background radiation.
description: 5 pages, 8 figures, to appear in Review of Scientific Instruments
Radar Observations of the 2011 October Draconid Outburst
Creators: name: Ye, Quanzhi
name: Brown, Peter G.
name: Campbell-Brown, Margaret D.
name: Weryk, Robert J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A strong outburst of the October Draconid meteor shower was predicted for October 8, 2011. Here we present the observations obtained by the Canadian Meteor Orbit Radar (CMOR) during the 2011 outburst. CMOR recorded 61 multi-station Draconid echoes and 179 single-station overdense Draconid echoes (covering the magnitude range of +3 <= MV <= +7) between 16-20h UT on October 8, 2011. The mean radiant for the outburst was determined to be a_g = 261.9o +/- 0.3o, d_g = +55.3o +/- 0.3o (J2000) from observations of the underdense multi-station echoes. This radiant location agrees with model predictions to ~1o . The determined geocentric velocity was found to be ~10-15% lower than the model value (17.0 - 19.1 km s^-1 versus 20.4 km s^-1), a discrepancy we attribute to undercorrection for atmospheric deceleration of low density Draconid meteoroids as well as to poor radar radiant geometry during the outburst peak. The mass index at the time of the outburst was determined to be ~ 1.75 using the amplitude distribution of underdense echoes...
description: MNRAS in press
Dealing with College FOMO in the Time of Social Distancing
Creators: name: Jaramillo, Shaina
Publisher: name: ORANGE Magazine
Year: 2020
Subjects: ORANGE - Pop Culture
COVID-19
pandemic
social distancing
college

description: COVID-19 hit the spring semester of my freshman year at the University of Texas at Austin and by then, I had just familiarized myself with campus and started to socialize with others. The pandemic cut my freshman year short and before I knew it, I was on a bus home to Dallas. Varying thoughts filled my head of whether or not I’d be able to finish this year in person, if I’d be able to still attend events, or if I would be able to see my friends back home. But most importantly it left me wondering what could have been.
From Liberal to Leftist: The Role of Social Media in Gen Z Politics
Creators: name: Risberg, Jill
Publisher: name: ORANGE Magazine
Year: 2021
Subjects: ORANGE - Pop Culture
politics
social media
Gen Z

description: It’s June of 2020. In one of the most significant social justice movements of our time, the systemic oppression of Black Americans is being protested. You know this embedded racism isn’t new. Every source you read reminds you it’s not new, but this is the first time you've sat down and given your privilege and position some serious reflection. You want to do more than simply cast a vote; you want to donate, listen to activists, and define your role as an ally.
Continuous-time Quantum Monte Carlo Approach for Impurity Anderson Models with Phonon-assisted Hybridizations
Creators: name: Hattori, Kazumasa
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop a continuous-time quantum Monte Carlo method based on a strong-coupling expansion for Anderson impurity models with phonon-assisted hybridizations for arbitrary number of phonon modes. As a benchmark, we investigate the two-channel Anderson model with a single phonon, and numerically demonstrate that an SO(5) susceptibility composed of localized-electron charge and phonon-parity operators diverges logarithmically at the non-Fermi liquid critical point in the model, which verifies the predictions by the boundary conformal field theory[K. Hattori: Phys. Rev. B {\bf 85} (2012) 214411].
description: 6 pages, 5 figures
title:   LOST & FOUND AN ELECTRO-ACOUSTIC MUSICAL COMPOSITION REFERENCING A DAY IN AN AFRICAN VILLAGE
title: A COMMENTARY ON A MUSICAL COMPOSITION
titleType: Subtitle
Creators: name: Essilfie, George
Publisher: name: University of Kentucky Libraries
Year: 2019

description: Electro-acoustic music composition makes it possible for composers to manipulate sounds with the computer with either alone or both live and prerecorded sounds. From the end of the 19th century when the first electronic devices for performing music were developed up till today, transformations in music technology keep surfacing and the possibilities with working with sounds have become endless. Electro-acoustic music has the ability to conjure mental images using vast sound manipulation techniques using the DAW(Digital audio workstation) and sound amplification through loudspeakers. Every space in our environment has its unique sound/s. Lost and found through these techniques provides an insight to a space which seems distant by geographical location but closer through sound.
description: Copyright © George Mensah Essilfie 2019
On the parameterized complexity of cutting a few vertices from a graph
Creators: name: Fomin, Fedor V.
name: Golovach, Petr A.
name: Korhonen, Janne H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We study the parameterized complexity of separating a small set of vertices from a graph by a small vertex-separator. That is, given a graph $G$ and integers $k$, $t$, the task is to find a vertex set $X$ with $|X| \le k$ and $|N(X)| \le t$. We show that - the problem is fixed-parameter tractable (FPT) when parameterized by $t$ but W[1]-hard when parameterized by $k$, and - a terminal variant of the problem, where $X$ must contain a given vertex $s$, is W[1]-hard when parameterized either by $k$ or by $t$ alone, but is FPT when parameterized by $k + t$. We also show that if we consider edge cuts instead of vertex cuts, the terminal variant is NP-hard.
The Sad Monologue of a Real Journalist
Creators: name: Cardenas, Cat
Publisher: name: ORANGE Magazine
Year: 2021
Subjects: ORANGE - Pop Culture
journalist
journalism
college

description: I would like a refund on my college experience. Inspired by the likes of Kate Hudson and Jennifer Garner, I decided to major in Journalism, in hopes that one day I would be writing for a fashion magazine in New York. However, I am not sitting in a glamorous high-rise trying to come up with a list of how to lose a guy in 10 days. Instead, I am sitting in my less-than-glamorous West Campus apartment as a broke college student who knows nothing about fashion.
Spin vortices, skyrmions and the Kosterlitz-Thouless transition in the two-dimensional antiferromagnet
Creators: name: Yanagisawa, Takashi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate spin-vortex excitations in the two-dimensional antiferromagnet on the basis of the nonlinear sigma model. The model of two-dimensional Heisenberg quantum antiferromagnet is mapped onto the (2+1)D nonlinear sigma model. The 2D nonlinear sigma model has an instanton (or skyrmion) solution which describes an excitation of spin-vortex type. Quantum fluctuations of instantons are reduced to the study of the Coulomb gas, and the gas of instantons of the 2D nonlinear sigma model is in the plasma phase. We generalize this picture of instanton gas to the (2+1)D nonlinear sigma model. We show, using some approximation, that there is a Kosterlitz-Thouless transition from the plasma phase to the molecular phase as the temperature is lowered.
Louis Auguste Sunier an Louis Rollier (1859-1931)
Creators: name: Sunier, Louis Auguste
Publisher: name: [s.n.]
Year: 1927

description: Brief aus Thorberg, verfasst auf Briefpapier der Strafanstalt Thorberg.
Zusätzlich darauf vermerkt: Notiz zur Beantwortung am 29.5.1927 von Louis Rollier
Spin resonance in Luttinger liquid with spin-orbit interaction
Creators: name: Tretiakov, Oleg A.
name: Tikhonov, K. S.
name: Pokrovsky, V. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin-orbit interaction in quantum wires leads to a spin resonance at low temperatures, even in the absence of an external dc magnetic field. We study the effect of electron-electron interaction on the resonance. This interaction is strong in quantum wires. We show that the electron-electron interaction changes the shape of the resonance curve and produces an additional cusp at the plasmon frequency. However, except for very strong electron-electron interaction these changes are weak since this interaction by itself does not break the spin-rotation symmetry that is violated weakly by the spin-orbit interaction and external magnetic field.
description: 8 pages (including 3 pages of supplementary material), 2 figures
Bodies Bodies Bodies: How to Poke Fun at a Generation
Creators: name: Meier, Sydney
Publisher: name: ORANGE Magazine
Year: 2022
Subjects: ORANGE - Pop Culture
Bodies Bodies Bodies
Gen Z
comedy
film
review

description: Gone is the age of condescending, low-quality cash grabs written exclusively by 40-year-olds for teenagers. Director Halina Reijn’s latest is a slasher film called Bodies Bodies Bodies. The blend of directing, acting, and screenplay sets this film apart from its uninventive predecessors by earning and maintaining its audiences’ attention throughout the movie in nuanced and unexpected ways.
An Adaptive Threshold in Mammalian Neocortical Evolution
Creators: name: Lewitus, Eric
name: Kelava, Iva
name: Kalinka, Alex T.
name: Tomancak, Pavel
name: Huttner, Wieland B
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Biological sciences

description: Expansion of the neocortex is a hallmark of human evolution. However, it remains an open question what adaptive mechanisms facilitated its expansion. Here we show, using gyrencephaly index (GI) and other physiological and life-history data for 102 mammalian species, that gyrencephaly is an ancestral mammalian trait. We provide evidence that the evolution of a highly folded neocortex, as observed in humans, requires the traversal of a threshold of 10^9 neurons, and that species above and below the threshold exhibit a bimodal distribution of physiological and life-history traits, establishing two phenotypic groups. We identify, using discrete mathematical models, proliferative divisions of progenitors in the basal compartment of the developing neocortex as evolutionarily necessary and sufficient for generating a fourteen-fold increase in daily prenatal neuron production and thus traversal of the neuronal threshold. We demonstrate that length of neurogenic period, rather than any novel progenitor-type, is sufficient to distinguish cortical neuron number between species within the same phenotypic group.
description: Currently under review; 38 pages, 5 Figures, 13 Supplementary Figures, 2 Tables
Tensor categories and the mathematics of rational and logarithmic conformal field theory
Creators: name: Huang, Yi-Zhi
name: Lepowsky, James
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T40, 18D10, 17B69

description: We review the construction of braided tensor categories and modular tensor categories from representations of vertex operator algebras, which correspond to chiral algebras in physics. The extensive and general theory underlying this construction also establishes the operator product expansion for intertwining operators, which correspond to chiral vertex operators, and more generally, it establishes the logarithmic operator product expansion for logarithmic intertwining operators. We review the main ideas in the construction of the tensor product bifunctors and the associativity isomorphisms. For rational and logarithmic conformal field theories, we review the precise results that yield braided tensor categories, and in the rational case, modular tensor categories as well. In the case of rational conformal field theory, we also briefly discuss the construction of the modular tensor categories for the Wess-Zumino-Novikov-Witten models and, especially, a recent discovery concerning the proof of the fundamental rigidity property of the modular tensor categories for this important special case. In the case of logarithmic conformal field theory, we mention suitable categories of modules for the triplet \mathcal{W}-algebras as an example of the applications of our general construction of the braided tensor category structure.
description: In response to the referees' helpful comments, further discussion of several issues is added, including in particular rigidity. Much of the paper is devoted to explaining what has been mathematically proved and where people can find these proofs. Several references added. 27 pages. Invited review article for publication in a special issue of J. Phys. A on logarithmic conformal field theory
title: "You Don’t Belong to Yourself...". Subject and Power in the Early Diaries of Alexander II (1826-1839)
Creators: name: Rebecchini, Damiano
Publisher: name: AvtobiografiЯ
Year: 2019

description: This article analyses the personal journal of Aleksandr Nikolaevich (the future Alexander II) when he was heir to the throne from 1825 to 1839. Held at the Russian State Archive in Moscow (GARF), the journal has not yet received significant scholarly attention. The article examines Aleksandr’s journal in the context of a romantic culture of intimate journaling at the court of Tsar Nicholas I, and, in particular, outlines four different models of journals available to the heir while composing his diary: (i) the diary of his mother, the Empress Aleksandra Fedorovna; (ii) that of his father, Tsar Nicholas I; (iii) that of his tutor Vasilii Zhukovskii; (iv) that of his governor Karl Merder. The author demonstrates how Aleksandr Nikolaevich’s journal in its design, language and its choice of subjects openly rejects the model of romantic journal embodied by his mother, while also rejecting Zhukovskii’s model, which treats the diary [...].
Jean Strohl (1886-1942) an Louis Rollier (1859-1931), mit Beilage
Creators: name: Strohl, Jean
Publisher: name: [s.n.]
Year: 1923

description: Brief aus St. Légier.
Beilage: Circulaire adressée à Messieurs les conférenciers à l'assemblée générale de la Société Helvétique des Sciences naturelles. Gedrucktes Rundschreiben der Schweizerischen Naturforschenden Gesellschaft aus Lausanne, Juni 1923
The Desensitization of Gen-Z: A Conversation on the Effects of Social Media and Societal Collapse
Creators: name: Xu, Sarah
Publisher: name: ORANGE Magazine
Year: 2022
Subjects: ORANGE - Pop Culture
Gen Z
desensitization
social media
news
society

description: The average person spends anywhere from 45-95 minutes on TikTok a day, and if you’re anything like me, I fall in the very above-average category. For perspective, today I’ve watched 215 videos in 117 minutes, not including the videos I quickly scrolled through and weren't counted in my full watch history. 215 videos that showed me a combination of sad, funny, depressing, hopeful, and happy content from an indistinguishable amount of genres and niches.
title: Bronisław Grombczewski’s Travel Diaries as Experimental Memorialistic Literature
Creators: name: Popiel-Machnicki, Wawrzyniec
name: Osiewicz, Bartosz
Publisher: name: AvtobiografiЯ
Year: 2019

description: Bronisław Grombczewski, a son of a Polish participant in the January Uprising (1863), chose a career path in the tsarist army of the Russian Empire and became a general under Tsar Alexander III and Nicholas II. Grombczewski was famous thanks to his service in Central Asia, where as a diplomat and intelligence officer he defended the interests of Russia in its struggle against the British Empire for the Silk Road. His travel diaries, covering numerous expeditions, are an invaluable source of knowledge about the history and life of the inhabitants of this region. Moreover, Grombczewski’s notebooks reflect the policy of Russia in the late nineteenth and early twentieth centuries. In addition to their value as a historical document, they give personal insight into Grombczewski. The purpose of this article is to identify the features of the diary genre in which Grombczewski worked.  [...]
Unidentified
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019
Subjects: Folk music

description: Gil Turner sings "Benny 'Kid' Paret." Pete Seeger, Bob Dylan, and Sis Cunningham are in the studio talking about folk music and Broadside Magazine. Dylan sings "The Ballad of Donald White." Pete Seeger sings "I Can See A New Day.
The proton-proton weak capture in chiral effective field theory
Creators: name: Marcucci, L. E.
name: Schiavilla, R.
name: Viviani, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The astrophysical S-factor for proton-proton weak capture is calculated in chiral effective field theory over the center-of-mass relative-energy range 0--100 keV. The chiral two-nucleon potential derived up to next-to-next-to-next-to leading order is augmented by the full electromagnetic interaction including, beyond Coulomb, two-photon and vacuum-polarization corrections. The low-energy constants (LEC's) entering the weak current operators are fixed so as to reproduce the A=3 binding energies and magnetic moments, and the Gamow-Teller matrix element in tritium beta decay. Contributions from S and P partial waves in the incoming two-proton channel are retained. The S-factor at zero energy is found to be S(0)=(4.030 +/- 0.006) x 10^{-23} MeV fm^2, with a P-wave contribution of 0.020 x 10^{-23} MeV fm^2. The theoretical uncertainty is due to the fitting procedure of the LEC's and to the cutoff dependence.
description: 4 pages, 3 figures; revisited version accepted for publication on Phys. Rev. Lett. A misprint in Table II has been corrected
title: From "Ardent Boy" to "A Man with Honour and Intellect": David Samoilov’s Pre-War and Wartime Diaries
Creators: name: Reznichenko, Naum
Publisher: name: AvtobiografiЯ
Year: 2019

description: This article is devoted to Podennie zapisi [Daily Notes], the diaries by Russian poet David Samoilov (1920–1990), which depict the main events in his life and the historical period in which he lived. The article focuses on the years 1934 to 1945, a crucial period for the foundation and evolution of the poet’s moral and creative principles, which shaped the poet’s personal artistic world, his political ideology and his philosophical worldview. Samoilov’s diaries provide a “mirror” of the historical fate of his generation, whom he calls “the generation of 1940”. Ultimately, I argue that Samoilov’s diaries are not simply an autobiographical document, but a “personal history”, which is developed more fully in Samoilov’s poetry.
Periodic Landau gauge and Quantum Hall effect in twisted bilayer graphene
Creators: name: Hasegawa, Yasumasa
name: Kohmoto, Mahito
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Energy versus magnetic field (Hofstadter butterfly diagram) in twisted bilayer graphene is studied theoretically. If we take the usual Landau gauge, we cannot take a finite periodicity even when the magnetic flux through a supercell is a rational number. We show that the \textit{periodic} Landau gauge, which has the periodicity in one direction, makes it possible to obtain the Hofstadter butterfly diagram. Since a supercell can be large, magnetic flux through a supercell normalized by the flux quantum can be a fractional number with a small denominator, even when a magnetic field is not extremely strong. As a result, quantized Hall conductance can be a solution of nontrivial Diophantine equation.
description: 9 pages, 10 figures revised
Microwave spectroscopic study of the hyperfine structure of antiprotonic helium-3
Creators: name: Friedreich, Susanne
name: Barna, Daniel
name: Caspers, Fritz
name: Dax, Andreas
name: Hayano, Ryugo S.
name: Hori, Masaki
name: Horváth, Dezső
name: Juhász, Bertalan
name: Kobayashi, Takumi
name: Massiczek, Oswald
name: Sótér, Anna
name: Todoroki, Koichi
name: Widmann, Eberhard
name: Zmeskal, Johann
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this work we describe the latest results for the measurements of the hyperfine structure of antiprotonic helium-3. Two out of four measurable super-super-hyperfine SSHF transition lines of the (n,L)=(36,34) state of antiprotonic helium-3 were observed. The measured frequencies of the individual transitions are 11.12548(08) GHz and 11.15793(13) GHz, with an increased precision of about 43% and 25% respectively compared to our first measurements with antiprotonic helium-3 [S. Friedreich et al., Phys. Lett. B 700 (2011) 1--6]. They are less than 0.5 MHz higher with respect to the most recent theoretical values, still within their estimated errors. Although the experimental uncertainty for the difference of 0.03245(15) GHz between these frequencies is large as compared to that of theory, its measured value also agrees with theoretical calculations. The rates for collisions between antiprotonic helium and helium atoms have been assessed through comparison with simulations, resulting in an elastic collision rate of gamma_e = 3.41 +- 0.62 MHz and an inelastic collision rate of gamma_i = 0.51 +- 0.07 MHz.
description: 15 pages, 9 figures. arXiv admin note: substantial text overlap with arXiv:1102.5286
Visualization of three-dimensional incompressible flows by quasi-two-dimensional divergence-free projections
Creators: name: Gelfgat, Alexander
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A visualization of three-dimensional incompressible flows by divergence-free quasi-two-dimensional projections of velocity field on three coordinate planes is proposed. It is argued that such divergence-free projections satisfying all the velocity boundary conditions are unique for a given velocity field. It is shown that the projected fields and their vector potentials can be calculated using divergence-free Galerkin bases. Using natural convection flow in a laterally heated cube as an example, it is shown that the projection proposed allow for a better understanding of similarities and differences of three-dimensional flows and their two-dimensional likenesses. An arbitrary choice of projection planes is further illustrated by a lid-driven flow in a cube, where the lid moves parallel either to a sidewall or a diagonal plane.
title: Diaries in Twentieth-Century Russian Culture: Twenty-Five Years Later
Creators: name: Bogomolov, Nikolai
Publisher: name: AvtobiografiЯ
Year: 2019

description: This article is a sequel to the author’s previous piece Дневники в русской культуре начала ХХ века [Diaries in Twentieth-Century Russian Culture] (1990). During these years a lot of diaries appeared that were not known to anyone, and scholarly understandings of life-writing changed radically. First of all, we are obliged to understand the functions of the diary for its author. More and more often a diary becomes intended for an outside reader, as a work of fiction is. So scholars must distinguish between Dichtung [poetry] and Wahrheit [truth] in these works, as they do in addressing pure art.
title: Ivan Bunin’s 1920s Diaries: Limits and Space for their Reconstruction
Creators: name: Dviniatina, Tatiana
Publisher: name: AvtobiografiЯ
Year: 2019

description: This article examines the relationship between Ivan Bunin’s 1920s diary entries, the concrete events of his life and the diaries of his wife, Vera Bunina. An attempt is made to reconstruct what might have been in those parts of his diary, which Bunin subsequently destroyed. Attention focusses on the principles governing the choice of events to be recorded at the time the diary was being written (hypothetically) and the principles that determined the subsequent selection of diary entries for the retrospective construction of a personal history (more concretely). Interrogating the assembled documentary evidence makes it possible to delineate the visible limits of Bunin’s inner biography accessible to the scrutiny of researchers and readers in our own time.
Fermi bubble $γ$-rays as a result of diffusive injection of Galactic cosmic rays
Creators: name: Thoudam, Satyendra
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recently, the {\it{Fermi}} space telescope has discovered two large $γ$-ray emission regions, the so-called "Fermi bubbles", that extend up to $\sim 50^\circ$ above and below the Galactic center. The $γ$-ray emission from the bubbles are found to follow a hard spectrum with no significant spatial variation in intensity and spectral shape. The origin of the emission is still not clearly understood. Suggested explanations include injection of cosmic-ray nuclei from the Galactic center by high-speed Galactic winds, electron acceleration by multiple shocks and stochastic electron acceleration inside the bubbles. In this letter, it is proposed that the $γ$-rays can be the result of diffusive injection of Galactic cosmic-ray protons during their propagation through the Galaxy. Considering that the bubbles are slowly expanding, and cosmic rays undergo much slower diffusion inside the bubbles than in the averaged Galaxy and at the same time suffer losses due to adiabatic expansion and inelastic collisions with the bubble plasma, this model can explain the observed intensity profile, the emission spectrum and the measured luminosity without invoking any additional particle production processes unlike other existing models.
description: ApJ Letters accepted, major revision after referee's comments
Long-range entanglement is necessary for a topological storage of quantum information
Creators: name: Kim, Isaac H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A general inequality between entanglement entropy and a number of topologically ordered states is derived, even without using the properties of the parent Hamiltonian or the formalism of topological quantum field theory. Given a quantum state $\ketψ$, we obtain an upper bound on the number of distinct states that are locally indistinguishable from $\ketψ$. The upper bound is determined only by the entanglement entropy of some local subsystems. As an example, we show that $\log N \leq 2γ$ for a large class of topologically ordered systems on a torus, where $N$ is the number of topologically protected states and $γ$ is the constant subcorrection term of the entanglement entropy. We discuss applications to quantum many-body systems that do not have any low-energy topological quantum field theory description, as well as tradeoff bounds for general quantum error correcting codes.
description: 5 pages, 1 figure, minor changes. For more details, see the first version. After submitting this work to the journal, I have found a related work by T. Osborne; see arXiv:0806.2962
Quantum limits on probabilistic amplifiers
Creators: name: Pandey, Shashank
name: Jiang, Zhang
name: Combes, Joshua
name: Caves, Carlton M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An ideal phase-preserving linear amplifier is a deterministic device that adds to an input signal the minimal amount of noise consistent with the constraints imposed by quantum mechanics. A noiseless linear amplifier takes an input coherent state to an amplified coherent state, but only works part of the time. Such a device is actually better than noiseless, since the output has less noise than the amplified noise of the input coherent state; for this reason we refer to such devices as {\em immaculate}. Here we bound the working probabilities of probabilistic and approximate immaculate amplifiers and construct theoretical models that achieve some of these bounds. Our chief conclusions are the following: (i) the working probability of any phase-insensitive immaculate amplifier is very small in the phase-plane region where the device works with high fidelity; (ii) phase-sensitive immaculate amplifiers that work only on coherent states sparsely distributed on a phase-plane circle centered at the origin can have a reasonably high working probability.
description: V1: 20 pages, 8 figures. V2: 24 pages, 9 figures, and significantly revised text. V3 published version (minor changes)
Unidentified
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2019

description: Various folk songs play, including "Will the Circle be Unbroken," "Little Wheel Spin and Spin" by Buffy Sainte-Marie, "Reno Nevada" by Mimi & Richard Farina, "I Am a Roving Gambler," "The Name of the Game is Stud" by Tom Paxton, "Tennesee Stud," and "Bucking Bronco
The Role of Superluminal Electromagnetic Waves in Pulsar Wind Termination Shocks
Creators: name: Amano, Takanobu
name: Kirk, John G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The dynamics of a standing shock front in a Poynting-flux dominated relativistic flow is investigated by using a one-dimensional, relativistic, two-fluid simulation. An upstream flow containing a circularly polarized, sinusoidal magnetic shear wave is considered, mimicking a wave driven by an obliquely rotating pulsar. It is demonstrated that this wave is converted into large amplitude electromagnetic waves with superluminal phase speeds by interacting with the shock when the shock-frame frequency of the wave exceeds the proper plasma frequency. The superluminal waves propagate in the upstream, modify the shock structure substantially, and form a well-developed precursor region ahead of a subshock. Dissipation of Poynting flux occurs in the precursor as well as in the downstream region through a parametric instability driven by the superluminal waves. The Poynting flux remaining in the downstream region is carried entirely by the superluminal waves. The downstream plasma is therefore an essentially unmagnetized, relativistically hot plasma with a non-relativistic flow speed, as suggested by observations of pulsar wind nebulae.
description: 15 pages, 7 figures. Accepted for publication in ApJ
Weyl group actions on the Springer sheaf
Creators: name: Achar, Pramod N.
name: Henderson, Anthony
name: Juteau, Daniel
name: Riche, Simon
Publisher: name: arXiv
Year: 2013
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B08, 20G05 (Primary) 14M15 (Secondary)

description: We show that two Weyl group actions on the Springer sheaf with arbitrary coefficients, one defined by Fourier transform and one by restriction, agree up to a twist by the sign character. This generalizes a familiar result from the setting of l-adic cohomology, making it applicable to modular representation theory. We use the Weyl group actions to define a Springer correspondence in this generality, and identify the zero weight spaces of small representations in terms of this Springer correspondence.
description: 27 pages; version 2: accepted version, with minor changes recommended by referee
title: The Diary as Political Commentary: Ivan Bunin’s Okaiannye dni (1925) and the Newspaper «Vozrodozhdenie»
Creators: name: Nikolaev, Dmitrii
Publisher: name: AvtobiografiЯ
Year: 2019

description: The article examines the first publication of Okaiannye dni [Cursed Days] in 1925 in the Russian émigré newspaper «Vozrozhdenie» [Rebirth] and the text’s role in the ideological debates of that year. The author argues that readers judged the newspaper based on the fragments of Okaiannye dni no less than by its editorial articles. Bunin’s diary is written in a subjective, documentary style, evoking the journalistic pathos characteristic of «Vozrozhdenie». The author’s ideological position combined two layers: one associated with the ideological struggles of the year of publication (1925), and the second, reflecting the pathos of the period covered in the diary (1919). When Okaiannye dni was finally published in 1935, the text had many fictional elements, and there exists a common misconception that the newspaper publication also included such elements. [...]
title: You, Me and I: Addressivity in the Diaries of Ordinary Soviet Citizens
Creators: name: Savkina, Irina
Publisher: name: AvtobiografiЯ
Year: 2019

description: The article discusses the problem of addressivity (Bakhtin’s adresovannost’) in the diaries of Soviet citizens, based on an understanding of the diary as an uncertain genre balanced between privacy and publicity. On the one hand, diarists can address a You who is, paradoxically, both absent and present: a virtual addressee whose presence reveals the need for dialogue. On the other hand, the addressee can take the form of a We who is particularly meaningful for the diarist. The word We here refers to a community that the diarist considers significant, which can be termed recognition groups. The diarist enters into an internal dialogue with these recognition groups, imitating their discourse. The variety of such forms of addressivity is demonstrated through the analysis of three diaries of young people in the Soviet period [...].
Pilgrim or Tourist? Modelling Two Types of Travel Bloggers
Creators: name: Van Nuenen, Tom
name: Van Der Beek, Suzanne
Publisher: name: Institute for Religious Studies, University of Heidelberg
Year: 2016
Subjects: pilgrim, tourist, identity, computational methods, topic modelling

description: The typological distinction between pilgrims and tourists has often been drawn in tourism studies. This article aims at complementing this debate by applying computational techniques to analyse discourses in a corpus of blogs from the Dutch travel blog repository of waarbenjij.nu. The hypothesis is that pilgrims and tourists share notable similarities in their identity narratives. Several unsupervised computational methods are leveraged to analyse the corpora; they provide a cue for further interpretation, which relies on a directed close reading of indicated keywords. The analysis shows that pilgrims, instead of writing about sacred topics, focus on the same practical topics that tourists are invested in. Conversely, tourists show a notable sensibility to a range of highly valued, set apart experiences. The paper ends with the proposal for a new continuum to understand the distinction between pilgrims andtourists, based on the difference between condensed diversity and extended engagement.
description: Online - Heidelberg Journal of Religions on the Internet, Vol 11 (2016)
Late-Time Spectral Observations of the Strongly Interacting Type Ia Supernova PTF11kx
Creators: name: Silverman, Jeffrey M.
name: Nugent, Peter E.
name: Gal-Yam, Avishay
name: Sullivan, Mark
name: Howell, D. Andrew
name: Filippenko, Alexei V.
name: Pan, Yen-Chen
name: Cenko, S. Bradley
name: Hook, Isobel M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: PTF11kx was a Type Ia supernova (SN Ia) that showed time-variable absorption features, including saturated Ca II H&K lines that weakened and eventually went into emission. The strength of the emission component of Hα increased, implying that the SN was undergoing significant interaction with its circumstellar medium (CSM). These features were blueshifted slightly and showed a P-Cygni profile, likely indicating that the CSM was directly related to, and probably previously ejected by, the progenitor system itself. These and other observations led Dilday et al. (2012) to conclude that PTF11kx came from a symbiotic nova progenitor like RS Oph. In this work we extend the spectral coverage of PTF11kx to 124-680 rest-frame days past maximum brightness. These spectra of PTF11kx are dominated by Hα emission (with widths of ~2000 km/s), strong Ca II emission features (~10,000 km/s wide), and a blue "quasi-continuum" due to many overlapping narrow lines of Fe II. Emission from oxygen, He I, and Balmer lines higher than Hα is weak or completely absent at all epochs, leading to large observed Hα/Hβ intensity ratios. The broader (~2000 km/s) Hα emission appears to increase in strength with time for ~1 yr, but it subsequently decreases significantly along with the Ca II emission. Our latest spectrum also indicates the possibility of newly formed dust in the system as evidenced by a slight decrease in the red wing of Hα. During the same epochs, multiple narrow emission features from the CSM temporally vary in strength. The weakening of the Hα and Ca II emission at late times is possible evidence that the SN ejecta have overtaken the majority of the CSM and agrees with models of other strongly interacting SNe Ia. The varying narrow emission features, on the other hand, may indicate that the CSM is clumpy or consists of multiple thin shells.
description: 12 pages, 7 figures, 1 table, re-submitted to ApJ
Abstraction and Acceleration in SMT-based Model-Checking for Array Programs
Creators: name: Alberti, Francesco
name: Ghilardi, Silvio
name: Sharygina, Natasha
Publisher: name: arXiv
Year: 2013
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Abstraction (in its various forms) is a powerful established technique in model-checking; still, when unbounded data-structures are concerned, it cannot always cope with divergence phenomena in a satisfactory way. Acceleration is an approach which is widely used to avoid divergence, but it has been applied mostly to integer programs. This paper addresses the problem of accelerating transition relations for unbounded arrays with the ultimate goal of avoiding divergence during reachability analysis of abstract programs. For this, we first design a format to compute accelerations in this domain; then we show how to adapt the so-called 'monotonic abstraction' technique to efficiently handle complex formulas with nested quantifiers generated by the acceleration preprocessing. Notably, our technique can be easily plugged-in into abstraction/refinement loops, and strongly contributes to avoid divergence: experiments conducted with the MCMT model checker attest the effectiveness of our approach on programs with unbounded arrays, where acceleration and abstraction/refinement technologies fail if applied alone.
description: Published in the proceedings of the 9th International Symposium on Frontiers of Combining Systems (FroCoS) with the title "Definability of Accelerated Relations in a Theory of Arrays and its Applications" (available at http://www.springerlink.com)
Das Stammbuch des Ulrich Reutter. (Handschrift des Germ. Mus. Nr. 121165 = Gs. 2092m)
Creators: name: Rothenfelder, Ludwig
Publisher: name: Anzeiger des Germanischen Nationalmuseums
Year: 2017

description: Anzeiger des Germanischen Nationalmuseums, 1924-25: Anzeiger des Germanischen Nationalmuseums
title: Aleksandr Blok’s Diary as the Key to the Mysterious Image of Jesus Christ at the End of The Twelve
Creators: name: Dotsenko, Sergei
Publisher: name: AvtobiografiЯ
Year: 2019

description: The unexpected appearance of Jesus Christ at the end of Aleksandr Blok’s The Twelve has caused much debate among scholars. This essay attempts to discover a key to decoding this image in the light of a much-discussed remark in Blok’s diary: “A terrible thought from the present times: the problem is not that the Red Guards are ‘unworthy’ of Jesus Christ who walks with them now; rather, the problem is that it precisely He who walks with them, when an Other is needed”. This remark suggests that the author himself could not fully explain this controversial idea he introduced in the poem. In the light of this remark, this article reads the ending of the poem as Blok’s attempt to deconstruct the symbolism of the traditional image of Christ. [...]
SRG/eROSITA prospects for the detection of stellar tidal disruption flares
Creators: name: Khabibullin, Ildar
name: Sazonov, Sergey
name: Sunyaev, Rashid
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We discuss the potential of the eROSITA telescope on board the Spectrum-Roentgen-Gamma (SRG) observatory to detect stellar tidal disruption events (TDE) during its 4-year all-sky survey. These events are expected to reveal themselves as luminous flares of UV/soft X-ray emission associated with the centres of previously non-active galaxies and fading by few orders of magnitude on time-scales of several months to years. Given that eROSITA will complete an all-sky survey every 6 months and a total of 8 such scans will be performed over the course of the mission, we propose to distinguish TDEs from other X-ray transients using two criteria: I) large (more than a factor of 10) X-ray variation between two subsequent 6-month scans and ii) soft X-ray spectrum. The expected number of TDE candidates is $\sim 10^3$ per scan (with most of the events being new discoveries in a given scan), so that a total of several thousand TDE candidates could be found during the 4-year survey. The actual number may significantly differ from this estimate, since it is based on just a few TDEs observed so far. The eROSITA all-sky survey is expected to be nearly equally sensitive to TDEs occurring near supermassive black holes (SMBH) of mass between $\sim 10^6$ and $\sim 10^7 M_\odot$ and will thus provide a unique census of quiescent SMBHs and associated nuclear stellar cusps in the local Universe ($z\lesssim 0.15$). Information on TDE candidates will be available within a day after their detection and localization by eROSITA, making possible follow-up observations that may reveal peculiar types of TDEs.
description: 11 pages, 6 figures; accepted for publication in MNRAS after major revision in response to referee comments
title: "An Intersection of Fate": Iurii Lotman and Zara Mints’ Youth Diaries.
Creators: name: Kuzovkina, Tatiana
Publisher: name: AvtobiografiЯ
Year: 2019

description: The article offers a comparative analysis of the diaries of Iurii Lotman and Zara Mints. The biographies of those two prominent scholars have many similarities. The wartime experience influenced of the formation of the personality of both. From the diaries we learn about the intellectual quests of Lotman and Mints and how they strove to educate themselves. The article reveals the similarity of their characters, attitudes and goals. This article is based on unpublished archival materials.
Sonnenfleckenzeichnung Nr. 30.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 31.01.2000, 09:45, erstellt von Sergio Cortesi
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2000

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 232.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 17.09.2000, 10:00, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2000

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 158.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 30.06.2000, 09:00, erstellt von Michele Bianda
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2000

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 4.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)
Sonnenfleckenzeichnung Nr. 146.
Zeichnung von Flecken und Fackelflächen zur Ermittlung der Sonnenaktivität am 18.06.2000, 10:15, erstellt von Andrea Manna
Creators: name: Observatorium Specola Solare Ticinese Locarno (1957 bis 1980 Teil der Eidgenössischen Sternwarte der ETH Zürich)
Publisher: name: [s.n.]
Year: 2000

description: Bleistiftzeichnung mit schwarzer Farbe und Bleistift, erstellt als Projektionsbildzeichnung für die Beobachtungen in Locarno-Monti auf einem eigenen Vordruck. Instrument: Zeiss-Coudé-Refraktor mit 15 cm Öffnung und 225 cm Brennweite. Bildqualität (SIDC): 3.
Die Beobachtungen zu Einzelflecken und zu Sonnenfleckengruppen wurden auf dem Vordruck eingetragen. Zusätzlich sind zuhanden der späteren statistischen Verarbeitung die Angaben für die Bestimmung der Fleckenrelativzahl notiert.
Beobachtungstätigkeit unter eigenständiger Leitung (Associazione Specola Solare Ticinese ASST)