cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interstellar H I and H_2 in the Magellanic Clouds: An Expanded Sample Based on UV Absorption-Line Data
Creators: name: Welty, Daniel E.
name: Xue, Rui
name: Wong, Tony
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have determined column densities of H I and/or H_2 for sight lines in the Magellanic Clouds from archival HST and FUSE spectra of H I Lyman-alpha and H_2 Lyman-band absorption. Together with some similar data from the literature, we now have absorption-based N(H I) and/or N(H_2) for 285 LMC and SMC sight lines (114 with a detection or limit for both species) -- enabling more extensive, direct, and accurate determinations of molecular fractions, gas-to-dust ratios, and elemental depletions in these two nearby, low-metallicity galaxies. For sight lines where the N(H I) estimated from 21 cm emission is significantly higher than the value derived from Lyman-alpha absorption (presumably due to emission from gas beyond the target stars), integration of the 21 cm profile only over the velocity range seen in Na I or H_2 absorption generally yields much better agreement. Conversely, N(21 cm) can be lower than N(Ly-alpha) by factors of 2--3 in some LMC sight lines -- suggestive of small-scale structure within the 21 cm beam(s) and/or some saturation in the emission. The mean gas-to-dust ratios obtained from N(H_tot)/E(B-V) are larger than in our Galaxy, by factors of 2.8--2.9 in the LMC and 4.1--5.2 in the SMC -- i.e., factors similar to the differences in metallicity. The N(H_2)/E(B-V) ratios are more similar in the three galaxies, but with considerable scatter within each galaxy. These data may be used to test models of the atomic-to-molecular transition at low metallicities and predictions of N(H_2) based on comparisons of 21 cm emission and the IR emission from dust.
description: 67 pages; 18 figures; aastex; accepted to ApJ; higher quality figures (1, 2, 9, 18) are available at http://astro.uchicago.edu/~dwelty/MCHI
Multiscale And Multiphysics Simulations With Genasis
Creators: name: Budiardja, Reuben
name: Endeve, Eirik
name: Cardall, Christian
name: Mezzacappa, Anthony
Publisher: name: Zenodo
Year: 2016

description: Poster presented at 2016 NSF Software Infrastructure for Sustained Innovation (SI2) Principal Investigator (PI) workshop.

Poster from conference site: https://share.renci.org/SI2PI2016/2016_SI2PI_Posters/Budiardja-MsMpGenASiS.pdf
description: https://share.renci.org/SI2PI2016/2016_SI2PI_Posters/Budiardja-MsMpGenASiS.pdf
Alexandra Moschovi, A Gust of Photo-Philia. Photography in the Art Museum and Andy Grundberg, How Photography Became Contemporary Art. Inside an Artistic Revolution from Pop to the Digital Age
Creators: name: Siegel, Steffen
Publisher: name: 21: Inquiries into Art, History, and the Visual
Year: 2022

description: 21: Inquiries into Art, History, and the Visual, Bd. 3 Nr. 4 (2022): 21: Inquiries into Art, History, and the Visual. Beiträge zur Kunstgeschichte und visuellen Kultur
Gamma-ray burst host galaxies at low and high redshift
Creators: name: Savaglio, Sandra
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The galaxies hosting the most energetic explosions in the universe, the gamma-ray bursts (GRBs), are generally found to be low-mass, metal poor, blue and star forming galaxies. However, the majority of the targets investigated so far (less than 100) are at relatively low redshift, z < 2. We know that at low redshift, the cosmic star formation is predominantly in small galaxies. Therefore, at low redshift, long-duration GRBs, which are associated with massive stars, are expected to be in small galaxies. Preliminary investigations of the stellar mass function of z < 1.5 GRB hosts does not indicate that these galaxies are different from the general population of nearby star-forming galaxies. At high-z, it is still unclear whether GRB hosts are different. Recent results indicate that a fraction of them might be associated with dusty regions in massive galaxies. Remarkable is the a super-solar metallicity measured in the interstellar medium of a z = 3.57 GRB host.
description: Highlight talk at the Astronomische Gesellschaft meeting (Heidelberg 2011), to appear in the book series Reviews in Modern Astronomy, volume 24
So close, so far
Creators: name: Acosta Luna, Olga Isabel
Publisher: name: 21: Inquiries into Art, History, and the Visual
Year: 2022

description: 21: Inquiries into Art, History, and the Visual, Bd. 3 Nr. 4 (2022): 21: Inquiries into Art, History, and the Visual. Beiträge zur Kunstgeschichte und visuellen Kultur
Khanh Trinh (ed.), Love, Fight, Feast. The Multifaceted World of Japanese Narrative Art
Creators: name: Kersey, Kristopher W.
Publisher: name: 21: Inquiries into Art, History, and the Visual
Year: 2022

description: 21: Inquiries into Art, History, and the Visual, Bd. 3 Nr. 4 (2022): 21: Inquiries into Art, History, and the Visual. Beiträge zur Kunstgeschichte und visuellen Kultur
Kreuzworträtsel für Heilige
Creators: name: Büchsel, Martin
Publisher: name: 21: Inquiries into Art, History, and the Visual
Year: 2022

description: 21: Inquiries into Art, History, and the Visual, Bd. 3 Nr. 4 (2022): 21: Inquiries into Art, History, and the Visual. Beiträge zur Kunstgeschichte und visuellen Kultur
Acoustic modelling and testing of piping systems
Creators: name: Lung, Tin Yick
Publisher: name: University of Calgary
Year: 1981
Subjects: subject: TA 492 P6 L85 1981
subject: Pipe - Acoustic properties - Mathematical models
subject: Acoustical engineering
subject: Acoustic models
subject: Petroleum industry and trade - Noise control
subject: Gas industry - Noise control

description: Bibliography: p. 173-182.
Spin-texture and magnetic anisotropy of Co adsorbed Bi$_2$Se$_3$ topological insulator surfaces
Creators: name: Schmidt, Tome M.
name: Miwa, R. H.
name: Fazzio, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Based upon first-principles methods, we investigate the magnetic anisotropy and the spin-texture of Co adatoms embedded in the topmost Se network of the topological insulator Bi$_2$Se$_3$ surface. We find the formation of energetically stable magnetic moment perpendicular to the surface plane, S$_z$. Our results for the pristine Bi$_2$Se$_3$ surface indicate the presence of helical spin-texture not only in the massless surface Dirac states, but also surface states resonant within the valence band present spin-texture. On the other hand, upon the presence of Co adatoms we find that the out-of-plane surface magnetism represents the dominant spin state (S$_z$), while the planar spin components, S$_x$ and S$_y$, are almost suppressed.
(Un)Sichtbar werden
Creators: name: Krause-Wahl, Antje
Publisher: name: 21: Inquiries into Art, History, and the Visual
Year: 2022

description: This article examines the photographs of artist Jimmy DeSana, who documented New York subcultures in the 1970s and experimented with materials and color in the 1980s. DeSana’s photographic interest in fetish cultures will be contextualized in the philosophical discourse of the 1970s, in which transgressive sexual practices were used to reveal and subvert power structures. To this end, I will locate the visual politics of the photographs in their publishing contexts: the magazine Semiotext(e), edited by philosopher Sylvère Lotringer, and FILE Megazine, edited by the artist group General Idea. Both magazines queered with their visual politics the strategies that determined the representation of subjects. I argue that DeSana’s material stagings and photographic processes intertwine bodies, their surfaces, and the surrounding space in order to reflect on image rhetorics and subject formations of mass media and create an alternative in which to image other ways of being and relating.
description: 21: Inquiries into Art, History, and the Visual, Bd. 3 Nr. 4 (2022): 21: Inquiries into Art, History, and the Visual. Beiträge zur Kunstgeschichte und visuellen Kultur
The Effects of peer influence and empathy on the altruism of young adolescents
Creators: name: Litvack-Miller, Willa
Publisher: name: University of Calgary
Year: 1986
Subjects: subject: BF 724 L565 1987
subject: Junior high school students - Psychology
subject: Altruism
subject: Empathy

description: Bibliography: p. 102-112.
description: This study investigated the effects of peer influence and dispositional empathy on the altruism of young adolescents. The subjects, 203 junior high school students were divided into three treatment groups: peer exhortation, adult exhortation and no exhortation and into high and low empathy groups. The study was conducted in two sessions. In the first session, subjects completed a measure of dispositional empathy, the Interpersonal Reactivity Index (Davis, 1980) and viewed a film documentary about the plight of African famine victims and the relief efforts of the International Red Cross. Prior to viewing the films, two of the treatment groups were exposed to a brief charitable exhortation delivered by either a high-status peer or a teacher. Approximately one week later the subjects reassembled. The same speakers delivered a second brief exhortation to their respective groups and subjects completed an index of altruism and anti-utilitarianism. The subjects then received a $0.50 payment for their participation in the study and were told that they could donate up to $0.45 to famine relief. Multivariate analyses of variance were used to assess the relationships of exhortation and trait empathy with charitable donations, altruism and anti-utilitarianism. The multivariate analyses of variance revealed no significant exhortation effects for the overall group. Exhortation effects did, however, appear for those subjects who had scored in the top and bottom thirds (approximately) of the empathic concern subscale of the Interpersonal Reactivity Index (Davis, 1980). Stepdown-F tests and t-tests revealed that subjects in the peer-exhortation group scored significantly higher on the anti-utilitariansim measure than did subjects in the adult-exhortation group (p=.007). Analyses of variance and corresponding stepdown-F tests revealed that both overall empathy and empathic concern significantly and positively affected charitable donations and altruism scores (p=.001) but not to anti-utilitarianism.
How Local is the Local Interstellar Magnetic Field?
Creators: name: Frisch, P. C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Similar directions are obtained for the local interstellar magnetic field (ISMF) by comparing diverse data and models that sample five orders of magnetic in spatial scales. These data include the ribbon of energetic neutral atoms discovered by the Interstellar Boundary Explorer, heliosphere models, the linear polarization of light from nearby stars, the Loop I ISMF, and pulsars that are within 100--300 pc. Together these data suggest that the local ISMF direction is correlated over scales of about 100 pc, such as would be expected for the interarm region of the galaxy. The heliosphere tail-in excess of GeV cosmic rays is consistent with the direction of the local ISMF direction found from polarization data.
description: Accepted for publication August 31, 2011; in press in the "Annual International Astrophysics Conference" series book "Physics of the Heliosphere: A 10-year Retrospective", published by American Institute of Physics, Editors: Jacob Heerikhuisen, Gang Li and Gary Zank
Selecting the diffractive events at the LHC energies
Creators: name: Fialkowski, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The PYTHIA 8 generator is used to estimate the percentage of non-diffractive and diffractive events at the LHC energies. It is shown that a simple condition of the absence of charged hadrons in the central pseudorapidity region is sufficient to remove almost all non-diffractive events. This opens the way to investigate diffraction without waiting for the future specialized detectors.
description: 4 pages
Mehrdeutigkeit und manieristische Wendung
Creators: name: Kretzschmar, Marthe
Publisher: name: 21: Inquiries into Art, History, and the Visual
Year: 2022

description: The French Renaissance ceramist Bernard Palissy (c. 1510–1590) made astonishingly lifelike casted and glazed little animals and plants, the so-called rustiques figulines. His work has been studied from a perspective of art history as well as the history of science. By re-analyzing art theoretical connotations, work processes, and strategies of self-representation, this article delves deep into the interdisciplinary relationship between art and science and gives a close reading of the rustiques figulines’ ambiguous structure. Palissy’s ceramics are contextualized within artistic mannerist strategies of his time and compared with works of Benvenuto Cellini and Wenzel Jamnitzer.
description: 21: Inquiries into Art, History, and the Visual, Bd. 3 Nr. 4 (2022): 21: Inquiries into Art, History, and the Visual. Beiträge zur Kunstgeschichte und visuellen Kultur
Quantum Charge Transport and Conformational Dynamics of Macromolecules
Creators: name: Boninsegna, L.
name: Faccioli, P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the dynamics of quantum excitations inside macromolecules which can undergo conformational transitions. In the first part of the paper, we use the path integral formalism to rigorously derive a set of coupled equations of motion which simultaneously describe the molecular and quantum transport dynamics, and obey the fluctuation/dissipation relationship. We also introduce an algorithm which yields the most probable molecular and quantum transport pathways in rare, thermally-activated reactions. In the second part of the paper, we apply this formalism to simulate the propagation of a charge during the collapse of a polymer from an initial stretched conformation to a final globular state. We find that the charge dynamics is quenched when the chain reaches a molten globule state. Using random matrix theory we show that this transition is due to an increase of quantum localization driven by dynamical disorder.
description: 11 pages, 2 figures
A study of students' learning of logarithmic functions using an adaptive computer assisted instruction system
Creators: name: Ma, Shao Ngang
Publisher: name: University of Calgary
Year: 1980
Subjects: subject: QA 20 C65 M32 1980 Fiche
subject: Computer-assisted instruction
subject: Logarithmic functions - Computer-assisted instruction
subject: Mathematics - Computer-assisted instruction
subject: Logarithmic functions - Study and teaching

description: Bibliography: p. 103-113.
Axially symmetric pseudo-Newtonian hydrodynamics code
Creators: name: Kim, Jinho
name: Kim, Hee Il
name: Choptuik, Matthew William
name: Lee, Hyung Mok
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We develop a numerical hydrodynamics code using a pseudo-Newtonian formulation that uses the weak field approximation for the geometry, and a generalized source term for the Poisson equation that takes into account relativistic effects. The code was designed to treat moderately relativistic systems such as rapidly rotating neutron stars. The hydrodynamic equations are solved using a finite volume method with High Resolution Shock Capturing (HRSC) techniques. We implement several different slope limiters for second order reconstruction schemes and also investigate higher order reconstructions. We use the method of lines (MoL) to convert the mixed spatial-time partial differential equations into ordinary differential equations (ODEs) that depend only on time. These ODEs are solved using 2nd and 3rd order Runge-Kutta methods. The Poisson equation for the gravitational potential is solved with a multigrid method. In order to confirm the validity of our code, we carry out four different tests including one and two dimensional shock tube tests, stationary star tests of both non-rotating and rotating models and radial oscillation mode tests for spherical stars. In the shock tube tests, the code shows good agreement with analytic solutions which include shocks, rarefaction waves and contact discontinuities. The code is found to be stable and accurate: for example, when solving a stationary stellar model the fractional changes in the maximum density, total mass, and total angular momentum per dynamical time are found to be $3 \times 10^{-6}$, $5 \times 10^{-7}$ and $2 \times 10^{-6}$, respectively. We also find that the frequencies of the radial modes obtained by the numerical simulation of the steady state star agree very well with those obtained by linear analysis.
description: 14 pages, 9 figures, 3 tables
Essays on poverty in Saudi Arabia
Creators: name: Al Lily, Miriam
Publisher: name: American University of Bahrain
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: In Saudi Arabia, it is estimated that around 20% of nationals live in relative poverty. Echoing this estimation, the main research objective of this thesis is to determine the causes of poverty among nationals. For this purpose, a socioeconomic survey was conducted among 496 Saudi households in Dammam, one of the largest metropolitan cities, in 2019. This appears to be one of the first independent household surveys conducted in Saudi Arabia. In addition, a subsample of 166 households took part in a lab-in-the-field experiment to measure the risk and time preferences of household heads. In this study poverty is conceptualised as relative poverty, based on the country’s inflationadjusted poverty line of $6 per person per day. To measure poverty, the Foster–GreerThorbecke (FGT) poverty index is used. Moreover, logit and tobit models are studied to analyse the determinants of the prevalence, intensity and severity of poverty. In addition, a discounted utility model is defined that applies prospect theory and quasi-hyperbolic discounting to jointly estimate the risk and time preferences of household heads. The results show that the key determinants of poverty are unemployment and limited education. Besides, large family sizes, insufficient social capital and being of African descent increase the risk of a household being poor. Moreover, female-headed households are affected by poverty more often and more severely than male-headed households. This is because many women do not seek employment due to cultural barriers. In addition, female household heads have fewer years of education than their male counterparts, which impacts their chances of employment. Nevertheless, it was discovered that females are equally likely to find a job when they have the same educational level as males. Furthermore, the study examined the relationship between poverty and behavioural aspects. A positive correlation between poverty and risk aversion and impatience was found. The study also enquired into Saudi Arabia’s social welfare system. Welfare payments lift one third of poor households out of poverty. However, around 15% of poor households do not receive any support. In particular, households without a national identification card are excluded from social welfare. Those households without access to governmental transfers or social networks were found to be willing to take greater risks. Moreover, female household heads receive higher social welfare payments than male heads. Hence, social welfare payments reduce the gender poverty gap to some extent.
Design of mirrors and apodization functions in phase-induced amplitude apodization (PIAA) systems
Creators: name: Cady, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Phase-induced amplitude apodization (PIAA) coronagraphs are a promising technology for imaging exoplanets, with the potential to detect Earth-like planets around Sun-like stars. A PIAA system nominally consists of a pair of mirrors which reshape incident light without attenuation, coupled with one or more apodizers to mitigate diffraction effects or provide additional beam-shaping to produce a desired output profile. We present a set of equations that allow apodizers to be chosen for any given pair of mirrors, or conversely mirror shapes chosen for given apodizers, to produce an arbitrary amplitude profile at the output of the system. We show how classical PIAA systems may be designed by this method, and present the design of a novel 4-mirror system with higher throughput than a standard 2-mirror system. We also discuss the limitations due to diffraction and the design steps that may be taken to mitigate them.
description: 26 pages, 8 figures, accepted to ApJS
PlasticsFatE Deliverable Report D7.6 Cluster Brochure
Creators: name: Tobin, Lesley
name: Kienzl, Sabine
name: Mata, Virginia
name: Vivani, Laura
name: Muncke, Jane
name: Boucher, Justin
Publisher: name: Zenodo
Year: 2023
Subjects: microplastics
nanoplastics
dissemination
brochure
communication
engagement

description: The Micro- and Nanoplastics Cluster – now known as CUSP “The European Research Cluster to
 Understand the Health Impacts of Micro- and Nanoplastics” - has been formed to facilitate
 collaborations between five research projects funded under Horizon 2020, the EU Framework
 Programme for Research and Innovation, SC1-BHC-36-2020 - Micro- and nanoplastics in our
 environment: Understanding exposures and impacts on human health.
 These initiatives are working together to enhance impact by synergizing communication and
 dissemination strategies, and sharing expertise such as analytical methods, exposure assessments,
 inter-lab comparisons, representative materials, and data exchange. The cluster will also collaborate
 closely with the JRC, and annual cluster meetings will be organized to report on joint activities within
 and beyond the cluster.
 This document describes the Cluster Brochure development and production as a common deliverable
 of the five CUSP projects. The text has been extracted from D7.4 Common Communication and
 Dissemination Strategy for the Cluster
A new applied approach for executing computations with infinite and infinitesimal quantities
Creators: name: Sergeyev, Yaroslav D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Mathematics (math.GM)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: A.1; C.1.0; F.1.1; G.0
subject: 00A05, 00A30, 03A99, 03E99, 65-02, 68M01

description: A new computational methodology for executing calculations with infinite and infinitesimal quantities is described in this paper. It is based on the principle `The part is less than the whole' introduced by Ancient Greeks and applied to all numbers (finite, infinite, and infinitesimal) and to all sets and processes (finite and infinite). It is shown that it becomes possible to write down finite, infinite, and infinitesimal numbers by a finite number of symbols as particular cases of a unique framework. The new methodology has allowed us to introduce the Infinity Computer working with such numbers (its simulator has already been realized). Examples dealing with divergent series, infinite sets, and limits are given.
description: 30 pages, 2 figures
Wide Stiffness Range Cavity Optomechanical Sensors for Atomic Force Microscopy
Creators: name: Liu, Yuxiang
name: Miao, Houxun
name: Aksyuk, Vladimir
name: Srinivasan, Kartik
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on progress in developing compact sensors for atomic force microscopy (AFM), in which the mechanical transducer is integrated with near-field optical readout on a single chip. The motion of a nanoscale, doubly-clamped cantilever was transduced by an adjacent high quality factor silicon microdisk cavity. In particular, we show that displacement sensitivity on the order of 1 fm/(Hz)^(1/2) can be achieved while the cantilever stiffness is varied over four orders of magnitude (\approx 0.01 N/m to \approx 290 N/m). The ability to transduce both very soft and very stiff cantilevers extends the domain of applicability of this technique, potentially ranging from interrogation of microbiological samples (soft cantilevers) to imaging with high resolution (stiff cantilevers). Along with mechanical frequencies (> 250 kHz) that are much higher than those used in conventional AFM probes of similar stiffness, these results suggest that our cavity optomechanical sensors may have application in a wide variety of high-bandwidth AFM measurements.
PENTATRAP: A novel cryogenic multi-Penning trap experiment for high-precision mass measurements on highly charged ions
Creators: name: Repp, J.
name: Böhm, Ch.
name: López-Urrutia, J. R. Crespo
name: Dörr, A.
name: Eliseev, S.
name: George, S.
name: Goncharov, M.
name: Novikov, Yu. N.
name: Roux, C.
name: Sturm, S.
name: Ulmer, S.
name: Blaum, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The novel five-Penning trap mass spectrometer PENTATRAP is developed at the Max-Planck-Institut für Kernphysik (MPIK), Heidelberg. Ions of interest are long-lived highly charged nuclides up to bare uranium. PENTATRAP aims for an accuracy of a few parts in 10^12 for mass ratios of mass doublets. A physics program for PENTATRAP includes Q-values measurements of β-transitions relevant for neutrino physics, stringent tests of quantum electrodynamics in the regime of extreme electric fields, and a test of special relativity. Main features of PENTATRAP are an access to a source of highly charged ions, a multi-trap configuration, simultaneous measurements of frequencies, a continuous precise monitoring of magnetic field fluctuations, a fast exchange between different ions, and a highly sensitive cryogenic non-destructive detection system. This paper gives a motivation for the new mass spectrometer PENTATRAP, presents its experimental setup, and describes the present status.
Covalent cross-linkage of immunoglobulins and F(ab1)2 fragments to their specific tissue antigens
Creators: name: Masri, Marwan A.
Publisher: name: University of Calgary
Year: 1980
Subjects: subject: QR 187 A1 M36 1980 Fiche
subject: Antigen-antibody reactions
subject: Proteins - Crosslinking
subject: Immunoglobulins

description: Bibliography: p. 101-105.
Generalized Relativistic Kinematics
Creators: name: Manida, Sergey N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a method for deforming an extended Galilei algebra that leads to a nonstandard realization of the Poincaré group with the Fock-Lorentz linear fractional transformations. The invariant parameter in these transformations has the dimension of length. Combining this deformation with the standard one (with an invariant velocity $c$) leads to the algebra of the symmetry group of the anti-de Sitter space in Beltrami coordinates. In this case, the action for free point particles contains the dimensional constants $R$ and $c$. The limit transitions lead to the ordinary ($R\to \infty$) or alternative ($c\to \infty$) but nevertheless relativistic kinematics.
Critical behaviour of the Ising model on the 4-dimensional lattice
Creators: name: Lundow, P. H.
name: Markström, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper we investigate the nature of the singularity of the Ising model of the 4-dimensional cubic lattice. It is rigorously known that the specific heat has critical exponent $α=0$ but a non-rigorous field-theory argument predicts an unbounded specific heat with a logarithmic singularity at $T_c$. We find that within the given accuracy the canonical ensemble data is consistent both with a logarithmic singularity and a bounded specific heat, but that the micro-canonical ensemble lends stronger support to a bounded specific heat. Our conclusion is that either much larger system sizes are needed for Monte Carlo studies of this model in four dimensions or the field theory prediction of a logarithmic singularity is wrong.
description: 5 pages, 7 figures
“Ghazal: America,” “Banquet,” “What the Butterfly is Thinking”
Creators: name: Suskin Ostriker, Alicia
Publisher: name: RSAJournal
Year: 2009

description: An Original Work by Alicia Suskin Ostriker
description: RSAJournal, V. 20 (2009): American Patchwork: Multi-Ethnicity in the United States Today
Stellar Membership and Dusty Debris Disks in the alpha Persei Cluster
Creators: name: Zuckerman, B.
name: Melis, Carl
name: Rhee, Joseph H.
name: Schneider, Adam
name: Song, Inseok
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Because of proximity to the Galactic plane, reliable identification of members of the alpha Persei cluster is often problematic. Based primarily on membership evaluations contained in six published papers, we constructed a mostly complete list of high-fidelity members of spectral type G and earlier that lie within 3 arc degrees of the cluster center. Alpha Persei was the one nearby, rich, young open cluster not surveyed with the Spitzer Space Telescope. We examined the first and final data releases of the Wide Field Infrared Survey Explorer (WISE) and found 11, or perhaps 12, alpha Per cluster members that have excess mid-infrared emission above the stellar photosphere attributable to an orbiting dusty debris disk. The most unusual of these is V488 Per, a K-type star with an excess IR luminosity 16% (or more) of the stellar luminosity; this is a larger excess fraction than that of any other known dusty main sequence star. Much of the dust that orbits V488 Per is at a temperature of ~800 K; if these grains radiate like blackbodies, then they lie only ~0.06 AU from the star. The dust is probably the aftermath of a collision of two planetary embryos or planets with small semimajor axes; such orbital radii are similar to those of many of the transiting planets discovered by the Kepler satellite.
description: Accepted for the Astrophysical Journal
A Comparative/analytical study of social policies on adoptions between Alberta, Canada, and selected Latin American countries, and their implications on international adoptions
Creators: name: Llerena, Ysabel M.
Publisher: name: University of Calgary
Year: 1986
Subjects: subject: HV 875.58 C32 A434 1987
subject: Intercountry adoption - Alberta
subject: Intercountry adoption - Peru
subject: Intercountry adoption - Colombia
subject: Alberta - Social policy
subject: Adoption - Alberta

description: Bibliography: p. 256-264.
Interstellar extinction and interstellar polarization: old and new models
Creators: name: Voshchinnikov, N. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The review contains an analysis of the observed and model curves of the interstellar extinction and polarization. The observations mainly give information on dust in diffuse and translucent interstellar clouds. The features of various dust grain models including spherical/non-spherical, homogeneous/inhomogeneous particles are discussed. A special attention is devoted to the analysis of the grain size distributions, alignment mechanisms and magnetic field structure in interstellar clouds. It is concluded that the interpretation of interstellar extinction and polarization is not yet complete.
description: Accepted for publication in Journal of Quantitative Spectroscopy and Radiative Transfer (Special issue, Electromagnetic and Light Scattering XIII, Taormina, 2011), 48 pages, 14 figures
Round Table on David Armitage, “The Declaration of Independence: A Global History”
Creators: name: Del Pero, Mario
name: Et Al.
Publisher: name: RSAJournal
Year: 2009

description: Introduction to the Serialized Forum Round Table on David Armitage's The Declaration of Independence: A Global History and interviews with Prof. Tiziano Bonazzi, Prof. David Hendrickson, Prof. Peter Onuf, and Prof. Arnaldo Testi
description: RSAJournal, V. 20 (2009): American Patchwork: Multi-Ethnicity in the United States Today
Post-development biophysical impact assessment of Diplomat Coal Mine, Forestburg, Alberta
Creators: name: McFarlane, Katherine I.
Publisher: name: Environmental Design
Year: 1981
Subjects: subject: TD 195 C58 M17 1985
subject: Coal mines and mining - Environmental aspects - Alberta - Forestburg
subject: Environmental impact analysis - Alberta - Forestburg
subject: Reclamation of land - Alberta - Forestburg

description: Bibliography: p. 265-274.
The United States as a Microcosm
Creators: name: Rosso, Gabriele
Publisher: name: RSAJournal
Year: 2009

description: During the early twentieth century the common perception of American identity was considerably reframed by the emergence of a pluralist and cosmopolitan outlook towards cultural diversity. The massive waves of immigration which, starting in the 1880s, radically changed the ethnic composition of the United States, contributing to the rise of a more refined cultural consciousness within some of the largest and cohesive minorities of the country. In this context the American Jewish community played a significant role in the development of the national debate on assimilation. Zionists and Reform Judaists struggled to impose their own perceptions of the Jewish people’s place and mission in America. One of the main contributions to this debate was that of the Jewish philosopher Horace Kallen (1882-1974): his theory of cultural pluralism, which was inspired precisely by this dispute, was founded upon the idea of the United States as a microcosm and opened the way to a multicultural understanding of American society that has been largely influential and still today receives wide attention.
description: RSAJournal, V. 20 (2009): American Patchwork: Multi-Ethnicity in the United States Today
Cold stars: the movement selfward in late nineteenth-century Canadian poetry
Creators: name: McLeod, Les
Publisher: name: University of Calgary
Year: 1981
Subjects: subject: PS 8143 M22 1983
subject: Lampman, Archibald, 1861-1899
subject: Roberts, Charles George Douglas, Sir., 1860-1943
subject: Carman, Bliss, 1861-1929
subject: Crawford, Isabella Valancy, 1850-1887
subject: Scott, Duncan Campbell, 1862-1947
subject: Canadian poetry (English) - History and criticism

description: Bibliography: p. 419-430.
Multiculturalism and the Legacy of Cultural Pluralism
Creators: name: Fiorentino, Daniele
Publisher: name: RSAJournal
Year: 2009

description: The present essay focuses on a group of intellectuals from the beginning of the 20th century who opened the way to a nationwide reflection on the right of minorities, and especially of immigrants, to maintain their tradition while entering American life. They contributed a pluralist reading of national identity that decades later resulted in the multiculturalist approach. Some among them held that these “new Americans” could contribute to the life of the nation by bringing with and within them different experiences and cultures. At a time when white supremacy, racial superiority, nationalism, and Social Darwinism were triumphant in their effort to exclude minorities, they worked on a redefinition of identity and citizenship that tended to include at least some of the minorities. Toward the end of the “American century,” this debate, initially limited to some of the groups forming the nation, found an articulate definition in multiculturalism. If not ready to create a “federation of cultures,” the United States of the late 20th century was at least capable of accepting a reality that has accompanied the history of the country since its birth: citizens can be “good Americans” while maintaining a cultural and social identity shared with their group of affiliation.
description: RSAJournal, V. 20 (2009): American Patchwork: Multi-Ethnicity in the United States Today
Higher order Laguerre-Gauss mode degeneracy in realistic, high finesse cavities
Creators: name: Bond, Charlotte
name: Fulda, Paul
name: Carbone, Ludovico
name: Kokeyama, Keiko
name: Freise, Andreas
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Higher order Laguerre-Gauss (LG) beams have been proposed for use in future gravitational wave detectors, such as upgrades to the Advanced LIGO detectors and the Einstein Telescope, for their potential to reduce the effects of the thermal noise of the test masses. This paper details the theoretical analysis and simulation work carried out to investigate the behaviour of LG beams in realistic optical setups, in particular the coupling between different LG modes in a linear cavity. We present a new analytical approximation to compute the coupling between modes, using Zernike polynomials to describe mirror surface distortions. We apply this method in a study of the behaviour of the LG33 mode within realistic arm cavities, using measured mirror surface maps from the Advanced LIGO project. We show mode distortions that can be expected to arise due to the degeneracy of higher order spatial modes within such cavities and relate this to the theoretical analysis. Finally we identify the mirror distortions which cause significant coupling from the LG33 mode into other order 9 modes and derive requirements for the mirror surfaces.
description: 12 pages Submitted to PRD 19/07/2011
Symmetry and characters of finite groups
Creators: name: Giannelli, Eugenio
name: Taylor, Jay
Publisher: name: Mathematisches Forschungsinstitut Oberwolfach
Year: 2016
Subjects: Algebra and Number Theory

description: Over the last two centuries mathematicians have developed an elegant abstract framework to study the natural idea of symmetry. The aim of this snapshot is to gently guide the interested reader through these ideas. In particular, we introduce finite groups and their representations and try to indicate their central role in understanding symmetry.
description: Snapshots of modern mathematics from Oberwolfach; No. 5/2016
“The Foreigner’s Home” and the Racial Self
Creators: name: Boi, Paola
Publisher: name: RSAJournal
Year: 2009

description: Recent trends in contemporary African American theory emphasize the problematization that affects the debates centered on the self. Theorist Deborah McDowell, in particular, underlines the difficulty “to posit a ‘positive’ black self, coherent, stable and above all known.” Not surprisingly she identifies Toni Morrison as the writer who can beautifully meet the challenge. Few writers can in fact accomplish the difficult task of blurring the boundaries created by the opposition self/other, familiar/foreign as Morrison does. The story “Stranger” published in 1998 (The New Yorker) followed by the spectacular program “The Foreigner’s Home” that she put on at the Louvre in 2006, are eloquent examples of how Morrison plays with these notions, endlessly mixing and identifying us as “others” to ourselves. Moving from the traditional metaphor of survival and shelter, she connotes the idea of “home” as something essentially ambiguous and at times threatening: a place of estrangement that becomes the necessary space of engagement. Robert Bergman’s haunting portraits, with the intense feeling of “otherness” they convey, offer the author/narrator of “Stranger” the occasion to tell the story and to relocate herself. Only the contact with a stranger can in fact teach her how to survive in a new landscape of identification.
description: RSAJournal, V. 20 (2009): American Patchwork: Multi-Ethnicity in the United States Today
3D Spectroscopy of Local Luminous Compact Blue Galaxies: Kinematic Maps of a Sample of 22 Objects
Creators: name: Pérez-Gallego, J.
name: Guzmán, R.
name: Castillo-Morales, A.
name: Gallego, J.
name: Castander, F. J.
name: Garland, C. A.
name: Gruel, N.
name: Pisano, D. J.
name: Zamorano, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use three dimensional optical spectroscopy observations of a sample of 22 local Luminous Compact Blue Galaxies (LCBGs) to create kinematic maps. By means of these, we classify the kinematics of these galaxies into three different classes: rotating disk (RD), perturbed rotation (PR), and complex kinematics (CK). We find 48% are RDs, 28% are PRs, and 24% are CKs. RDs show rotational velocities that range between $\sim50$ and $\sim200 km s^{-1}$, and dynamical masses that range between $\sim1\times10^{9}$ and $\sim3\times10^{10} M_{\odot}$. We also address the following two fundamental questions through the study of the kinematic maps: \emph{(i) What processes are triggering the current starbust in LCBGs?} We search our maps of the galaxy velocity fields for signatures of recent interactions and close companions that may be responsible for the enhanced star formation in our sample. We find 5% of objects show evidence of a recent major merger, 10% of a minor merger, and 45% of a companion. This argues in favor of ongoing interactions with close companions as a mechanism for the enhanced star formation activity in these galaxies. \emph{(ii) What processes may eventually quench the current starbust in LCBGs?} Velocity and velocity width maps, together with emission line ratio maps, can reveal signatures of Active Galactic Nuclei (AGN) activity or supernova (SN) driven galactic winds that could halt the current burst. We find only 5% of objects with clear evidence of AGN activity, and 27% with kinematics consistent with SN-driven galactic winds. Therefore, a different mechanism may be responsible for quenching the star formation in LCBGs. Finally, from our analysis, we find that the velocity widths of RDs, rather than accounting exclusively for the rotational nature of these objects, may account as well for other kinematic components, and may not be good tracers of their dynamical masses.
description: The paper contains 12 figures and 5 tables. The SDSS or DSS images, velocity maps, and velocity width maps of our galaxies (Figures 2-7) will be available through the actual paper at MNRAS (in grayscale), and by themselves at http://www.astro.ufl.edu/~jgallego/astronomy/atlas.pdf (in color)
Connectivity-Enforcing Hough Transform for the Robust Extraction of Line Segments
Creators: name: Guerreiro, Rui F. C.
name: Aguiar, Pedro M. Q.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Global voting schemes based on the Hough transform (HT) have been widely used to robustly detect lines in images. However, since the votes do not take line connectivity into account, these methods do not deal well with cluttered images. In opposition, the so-called local methods enforce connectivity but lack robustness to deal with challenging situations that occur in many realistic scenarios, e.g., when line segments cross or when long segments are corrupted. In this paper, we address the critical limitations of the HT as a line segment extractor by incorporating connectivity in the voting process. This is done by only accounting for the contributions of edge points lying in increasingly larger neighborhoods and whose position and directional content agree with potential line segments. As a result, our method, which we call STRAIGHT (Segment exTRAction by connectivity-enforcInG HT), extracts the longest connected segments in each location of the image, thus also integrating into the HT voting process the usually separate step of individual segment extraction. The usage of the Hough space mapping and a corresponding hierarchical implementation make our approach computationally feasible. We present experiments that illustrate, with synthetic and real images, how STRAIGHT succeeds in extracting complete segments in several situations where current methods fail.
description: Submitted for publication
The Orbital Period and Negative Superhumps of the Nova-Like Cataclysmic Variable V378 Pegasi
Creators: name: Ringwald, F. A.
name: Velasco, Kenia
name: Roveto, Jonathan J.
name: Meyers, Michelle E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A radial velocity study is presented of the cataclysmic variable V378 Pegasi (PG 2337+300). It is found to have an orbital period of 0.13858 +/- 0.00004 d (3.32592 +/- 0.00096 hours). Its spectrum and long-term light curve suggest that V378 Peg is a nova-like variable, with no outbursts. We use the approximate distance and position in the Galaxy of V378 Peg to estimate E(B-V) = 0.095, and use near-infrared magnitudes to calculate a distance of 680 +/- 90 pc and M_V = 4.68 +/- 0.70, consistent with V378 Peg being a nova-like. Time-resolved photometry taken between 2001 and 2009 reveals a period of 0.1346 +/- 0.0004 d (3.23 +/- 0.01 hours). We identify this photometric variability to be negative superhumps, from a precessing, tilted accretion disk. Our repeated measurements of the photometric period of V378 Peg are consistent with this period having been stable between 2001 and 2009, with its negative superhumps showing coherence over as many as hundreds or even thousands of cycles.
description: 24 pages, 19 figures, accepted for publication in New Astronomy
The Maple leaf site: an interpretation of prehistoric hunting and butchering strategies in the southern Alberta rockies
Creators: name: Landals, Alison J.
Publisher: name: University of Calgary
Year: 1986
Subjects: subject: GN 799 H84 L36 1986
subject: Hunting, Prehistoric - Alberta
subject: Animal remains (Archaeology) - Alberta

description: Bibliography: p. 219-231.
title: Adsorption of Naphthalene on Activated Wood Charcoal Derived from Biomass Gasification
Creators: name: Gradel, Andy
name: Wünning, Joachim Alfred
name: Plessing, Tobias
name: Jess, Andreas
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: Activated wood charcoal
subject: Adsorption
subject: Biomass gasification
subject: Breakthrough modeling
subject: Naphthalene
subject: 540
subject: 600
subject: 620
subject: 660

description: Abstract During gasification and/or pyrolysis of wooden biomass, charcoal is formed as a solid intermediate or product. In CO2- and H2O-rich atmospheres at high temperatures, a high specific surface area of several 100 m2 per gram of charcoal may be reached. Common biomass gasifiers aim at a charcoal conversion of 100 %. Up to now, the option of a subsequent usage of the charcoal for adsorption of tar compounds has rarely been considered but is an interesting option to produce a clean syngas in a downstream adsorption unit. Experimental studies show an adsorption capacity of up to 0.4 g of tar per gram of charcoal using naphthalene as a model substance for tar. Respective adsorption isotherms, breakthrough curves in a fixed-bed adsorber, and a kinetic breakthrough model are presented.