cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Blazar Jets Perturbed by Magneto-Gravitational Stresses in Supermassive Binaries
Creators: name: Cavaliere, A.
name: Tavani, M.
name: Vittorini, V.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study particle acceleration and radiative processes in Blazar jets under recurring conditions set by gravitational perturbations in supermassive binary systems. We consider the action from a companion orbiting a primary black hole of $\sim 10^8 \, M_{\odot}$, and perturbing its relativistic jet. We discuss how such conditions induce repetitive magneto-hydrodynamic stresses along the jet, and affect its inner electron acceleration and radiative processes. Specifically, we study how macroscopic perturbations related to increased jet "magnetization" end up into higher radiative outputs in the optical, X-ray and gamma-ray bands. We find first an increase in magnetic field strength as gauged in the optical band from the Synchrotron emission of electrons accelerated in kinetic processes stimulated by reconnecting magnetic lines. The energetic electrons then proceed to up-scatter the Synchrotron photons to GeV energies after the canonical Synchrotron-Self Compton radiation process. Our model implies a specific, recurring pattern in the optical to gamma-ray emissions, made of high peaks and wide troughs. Progressing accelerations caused by spreading reconnections will produce an additional Synchrotron keV component. Such outbursts provide a diagnostics for enhanced acceleration of electrons which can up-scatter photons into the TeV range. We discuss how our model applies to the BL Lac object PG 1553+113, arguably the best candidate to now for high amplitude, recurring modulations in its gamma-ray emissions. We also consider other BL Lacs showing correlated keV - TeV radiations such as Mrk 421.
description: 20 pages, 4 figures, accepted for publication by The Astrophysical Journal on Jan 8, 2017
Letter from E.M, Forster to Alec Randall, January 20, 1959
Creators: name: Forster, E. M. (Edward Morgan), 1879-1970
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Diplomats
valueUri: http://id.worldcat.org/fast/894415
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Forster, E. M. (Edward Morgan), 1879-1970
valueUri: http://id.worldcat.org/fast/40913
subject: Randall, Alec, 1892-
subject: Diplomatic and consular service
valueUri: http://id.worldcat.org/fast/894202
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Ambassadors
valueUri: http://id.worldcat.org/fast/806713

description: Part of a collection of letters written by E.M. Forster to Sir Alec Randall. They concern, firstly, his trip to Rumania, where he stayed with the Randalls; a tour in France in 1928; and his journey home. Later letters include references to such literary people as Herbert Read, Harold Monro and T.S. Eliot, plus a mention of reading James Joyce's "Ulysses". He also refers to his visit to Africa and his sentiments about the Spanish Civil War and W.W.II. Most of the later letters are signed "Morgan". E. M. Forster was born in London. He is principally known as a novelist and was associated with the Bloomsbury Group, which included Virginia Woolf. Among his best known works are "A Room With A View" (1911) and "A Passage To India" (1924). Many of his novels have been dramatized. He also wrote short stories, drama, non-fiction and criticism. He died at King's College, Cambridge, where he had resided since the mid 1940s. His friend, Sir Alec Randall was with the British legation in Bucharest, Rumania, and was later appointed to serve in Rome. Forster discusses how it feels to be 80 years old.
Lattice field theory simulations of Dirac semimetals
Creators: name: Braguta, V. V.
name: Katsnelson, M. I.
name: Kotov, A. Yu.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: In this paper the observed Dirac semimetals Na$_3$Bi and Cd$_3$As$_2$ are studied within lattice simulation. We formulate lattice field theory with rooted staggered fermions on anisotropic lattice. It is shown that in the limit of zero temporal lattice spacing this theory reproduces low energy effective theory of Dirac semimetals. Using this lattice theory we study the phase diagram of Dirac semimetals in the plane effective coupling constant--Fermi velocity anisotropy. Within the formulated theory the results are practically volume independent in contrast with our previous study. Our results confirm our previous finding that within the Dirac model with bare Coulomb interaction both Na$_3$Bi and Cd$_3$As$_2$ lie deep in the insulator phase.
description: 11 pages, 5 figures, 2 tables, typo in Eq. (20) corrected, Appendix added
Letter from E.M. Forster to Alec Randall, December 30, 1968
Creators: name: Forster, E. M. (Edward Morgan), 1879-1970
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Diplomats
valueUri: http://id.worldcat.org/fast/894415
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Forster, E. M. (Edward Morgan), 1879-1970
valueUri: http://id.worldcat.org/fast/40913
subject: Ambassadors
valueUri: http://id.worldcat.org/fast/806713
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Diplomatic and consular service
valueUri: http://id.worldcat.org/fast/894202
subject: Randall, Alec, 1892-
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684

description: Part of a collection of letters written by E.M. Forster to Sir Alec Randall. They concern, firstly, his trip to Rumania, where he stayed with the Randalls; a tour in France in 1928; and his journey home. Later letters include references to such literary people as Herbert Read, Harold Monro and T.S. Eliot, plus a mention of reading James Joyce's "Ulysses". He also refers to his visit to Africa and his sentiments about the Spanish Civil War and W.W.II. Most of the later letters are signed "Morgan". E. M. Forster was born in London. He is principally known as a novelist and was associated with the Bloomsbury Group, which included Virginia Woolf. Among his best known works are "A Room With A View" (1911) and "A Passage To India" (1924). Many of his novels have been dramatized. He also wrote short stories, drama, non-fiction and criticism. He died at King's College, Cambridge, where he had resided since the mid 1940s. His friend, Sir Alec Randall was with the British legation in Bucharest, Rumania, and was later appointed to serve in Rome. Forster looks forward to reading Randall's contribution to "Aspects".
Jackfish Lake State of the Watershed Report
Creators: North Saskatchewan Watershed Alliance (NSWA)
Publisher: name: University of Alberta Library
Year: 2016

The purpose of this report is to consolidate environmental information on Jackfish Lake and its watershed in an effort to support future planning and management discussions. The report provides perspective on current environmental conditions at the lake relative to regional and historic trends. The report is provided as advice to the Jackfish Lake Management Association (JLMA), Alberta Environment and Parks, and Parkland County. (As cited in executive summary.)
Two-body bound and edge states in the extended SSH Bose-Hubbard model
Creators: name: Di Liberto, M.
name: Recati, A.
name: Carusotto, I.
name: Menotti, C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study the bosonic two-body problem in a Su-Schrieffer-Heeger dimerized chain with on-site and nearest-neighbor interactions. We find two classes of bound states. The first, similar to the one induced by on-site interactions, has its center of mass on the strong link, whereas the second, existing only thanks to nearest-neighbors interactions, is centered on the weak link. We identify energy crossings between these states and analyse them using exact diagonalization and perturbation theory. In the presence of open boundary conditions, novel strongly-localized edge-bound states appear in the spectrum as a consequence of the interplay between lattice geometry, on-site and nearest-neighbor interactions. Contrary to the case of purely on-site interactions, such EBS persist even in the strongly interacting regime.
description: 12 pages, 8 figures; Submitted to EPJ Special Topics, Quantum Gases and Quantum Coherence
Pruned non-local means
Creators: name: Ghosh, Sanjay
name: Mandal, Amit K.
name: Chaudhury, Kunal N.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In Non-Local Means (NLM), each pixel is denoised by performing a weighted averaging of its neighboring pixels, where the weights are computed using image patches. We demonstrate that the denoising performance of NLM can be improved by pruning the neighboring pixels, namely, by rejecting neighboring pixels whose weights are below a certain threshold $λ$. While pruning can potentially reduce pixel averaging in uniform-intensity regions, we demonstrate that there is generally an overall improvement in the denoising performance. In particular, the improvement comes from pixels situated close to edges and corners. The success of the proposed method strongly depends on the choice of the global threshold $λ$, which in turn depends on the noise level and the image characteristics. We show how Stein's unbiased estimator of the mean-squared error can be used to optimally tune $λ$, at a marginal computational overhead. We present some representative denoising results to demonstrate the superior performance of the proposed method over NLM and its variants.
description: Published in IET Image Processing
Letter from Harold Monro to Herbert Read, June 26, 1930
Creators: name: Monro, Harold, 1879-1932
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Bookstore owners
valueUri: http://id.worldcat.org/fast/2010429
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Monro, Harold, 1879-1932
valueUri: http://id.worldcat.org/fast/919
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Authors
valueUri: http://id.worldcat.org/fast/821688

description: A letter to Sir Herbert Read from Harold Monro, poet, publisher, editor, and owner of The Poetry Bookshop, in which a disgruntled Monro reflects on a meeting with the 'Criterion Club' the evening before.
Static Charge Density Wave Order in the Superconducting State of La2-xBaxCuO4
Creators: name: Thampy, V.
name: Chen, X. M.
name: Cao, Y.
name: Mazzoli, C.
name: Barbour, A. M.
name: Hu, W.
name: Miao, H.
name: Fabbris, G.
name: Zhong, R. D.
name: Gu, G. D.
name: Tranquada, J. M.
name: Robinson, I. K.
name: Wilkins, S. B.
name: Dean, M. P. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Charge density wave (CDW) correlations feature prominently in the phase diagram of the cuprates, motivating competing theories of whether fluctuating CDW correlations aid superconductivity or whether static CDW order coexists with superconductivity in inhomogeneous or spatially modulated states. Here we report Cu $L$-edge resonant x-ray photon correlation spectroscopy (XPCS) measurements of CDW correlations in superconducting La$_{2-x}$Ba$_x$CuO$_4$ $x=0.11$. Static CDW order is shown to exist in the superconducting state at low temperatures and to persist up to at least 85\% of the CDW transition temperature. We discuss the implications of our observations for how \emph{nominally} competing order parameters can coexist in the cuprates.
description: 6 pages, 5 figures, Accepted in Phys. Rev. B Rapid Communications
Letter from E.M. Forster to Alec Randall, December 23, 1938
Creators: name: Forster, E. M. (Edward Morgan), 1879-1970
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Randall, Alec, 1892-
subject: Ambassadors
valueUri: http://id.worldcat.org/fast/806713
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Diplomatic and consular service
valueUri: http://id.worldcat.org/fast/894202
subject: Forster, E. M. (Edward Morgan), 1879-1970
valueUri: http://id.worldcat.org/fast/40913
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Diplomats
valueUri: http://id.worldcat.org/fast/894415

description: Part of a collection of letters written by E.M. Forster to Sir Alec Randall. They concern, firstly, his trip to Rumania, where he stayed with the Randalls; a tour in France in 1928; and his journey home. Later letters include references to such literary people as Herbert Read, Harold Monro and T.S. Eliot, plus a mention of reading James Joyce's "Ulysses". He also refers to his visit to Africa and his sentiments about the Spanish Civil War and W.W.II. Most of the later letters are signed "Morgan". E. M. Forster was born in London. He is principally known as a novelist and was associated with the Bloomsbury Group, which included Virginia Woolf. Among his best known works are "A Room With A View" (1911) and "A Passage To India" (1924). Many of his novels have been dramatized. He also wrote short stories, drama, non-fiction and criticism. He died at King's College, Cambridge, where he had resided since the mid 1940s. His friend, Sir Alec Randall was with the British legation in Bucharest, Rumania, and was later appointed to serve in Rome.
Letter from A. R. Orage to Herbert Read, February 09, 1920
Creators: name: Orage, A. R. (Alfred Richard), 1873-1934
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Orage, A. R. (Alfred Richard), 1873-1934
valueUri: http://id.worldcat.org/fast/822
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Uspenskiĭ, P. D. (Petr Demʹi︠a︡novich), 1878-1947
valueUri: http://id.worldcat.org/fast/15966
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386

description: Part of a collection of correspondence between Sir Herbert Read and Alfred Richard Orage. Orage is most well-known for editing the magazine “The New Age”. These letters, spanning 1921 and 1922, primarily discuss Read’s work as a Readers and Writers columnist for the magazine in that time. In these letters Orage also frequently mentions P. D. Ouspensky, who studied under philosopher G. I. Gurdjieff. In 1922 Orage sold “The New Age” and moved to Paris in order to also study under Gurdjieff. In this letter Orage refuses to publish a war story because it is too realistic, and encourages read explore what his soul learned in World War I.
Letter from E.M. Forster to Alec Randall, November 29, 1939
Creators: name: Forster, E. M. (Edward Morgan), 1879-1970
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Ambassadors
valueUri: http://id.worldcat.org/fast/806713
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Diplomatic and consular service
valueUri: http://id.worldcat.org/fast/894202
subject: Forster, E. M. (Edward Morgan), 1879-1970
valueUri: http://id.worldcat.org/fast/40913
subject: Diplomats
valueUri: http://id.worldcat.org/fast/894415
subject: Randall, Alec, 1892-
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Authors
valueUri: http://id.worldcat.org/fast/821688

description: Part of a collection of letters written by E.M. Forster to Sir Alec Randall. They concern, firstly, his trip to Rumania, where he stayed with the Randalls; a tour in France in 1928; and his journey home. Later letters include references to such literary people as Herbert Read, Harold Monro and T.S. Eliot, plus a mention of reading James Joyce's "Ulysses". He also refers to his visit to Africa and his sentiments about the Spanish Civil War and W.W.II. Most of the later letters are signed "Morgan". E. M. Forster was born in London. He is principally known as a novelist and was associated with the Bloomsbury Group, which included Virginia Woolf. Among his best known works are "A Room With A View" (1911) and "A Passage To India" (1924). Many of his novels have been dramatized. He also wrote short stories, drama, non-fiction and criticism. He died at King's College, Cambridge, where he had resided since the mid 1940s. His friend, Sir Alec Randall was with the British legation in Bucharest, Rumania, and was later appointed to serve in Rome. Forster asks for news about Mrs. Myslakowska from Warsaw who has visited him a few times in England. He has been excused housing wartime evacuees due to his mother's health and lack of gas and electric light.
Postcard from A. R. Orage to Herbert Read, July 21, 1921
Creators: name: Orage, A. R. (Alfred Richard), 1873-1934
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Anarchists
valueUri: http://id.worldcat.org/fast/808401
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Uspenskiĭ, P. D. (Petr Demʹi︠a︡novich), 1878-1947
valueUri: http://id.worldcat.org/fast/15966
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Editors
valueUri: http://id.worldcat.org/fast/902475
subject: Orage, A. R. (Alfred Richard), 1873-1934
valueUri: http://id.worldcat.org/fast/822
subject: Periodical editors
valueUri: http://id.worldcat.org/fast/1058064
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554

description: Part of a collection of correspondence between Sir Herbert Read and Alfred Richard Orage. Orage is most well-known for editing the magazine “The New Age”. These letters, spanning 1921 and 1922, primarily discuss Read’s work as a Readers and Writers columnist for the magazine in that time. In these letters Orage also frequently mentions P. D. Ouspensky, who studied under philosopher G. I. Gurdjieff. In 1922 Orage sold “The New Age” and moved to Paris in order to also study under Gurdjieff. In this postcard, Orage writes that Read's column should deal with current letters, leaving "old stagers" for off weeks. Orage also notes that R. H. C. should announce new critique soon.
Localization and Tracking of Neural Silences in the Brain
Creators: name: Chaman Zar, Alireza
Publisher: name: Carnegie Mellon University
Year: 2022
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: An ongoing challenge confronting basic scientists as well as those at the translational interface is the ability to access a rapid and cost-effective tool to detect and characterize neural silences. “Silences” or “regions of silence” refer to areas of brain tissue with abnormal, reduced, or no neural activity. These regions reflect ischemic, necrotic, or lesional tissue, resected tissue (e.g., after epilepsy surgery), or tumors. Dynamic regions of silence also arise in spreading depolarizations (SDs), which are slow-propagating waves of silence in the cerebral cortex and are reliable biomarkers for worsening brain injuries. Increasing evidence shows that clustered and prolonged SD events are devastating and can cause irreversible secondary brain damage after the primary brain injury.
KELT-18b: Puffy Planet, Hot Host, Probably Perturbed
Creators: name: McLeod, Kim K.
name: Rodriguez, Joseph E.
name: Oelkers, Ryan J.
name: Collins, Karen A.
name: Bieryla, Allyson
name: Fulton, Benjamin J.
name: Stassun, Keivan G.
name: Gaudi, B. Scott
name: Penev, Kaloyan
name: Stevens, Daniel J.
name: Colón, Knicole D.
name: Pepper, Joshua
name: Narita, Norio
name: Tsuguru, Ryu
name: Fukui, Akihiko
name: Reed, Phillip A.
name: Tirrell, Bethany
name: Visgaitis, Tiffany
name: Kielkopf, John F.
name: Cohen, David H.
name: Jensen, Eric L. N.
name: Gregorio, Joao
name: Baştürk, Özgür
name: Oberst, Thomas E.
name: Melton, Casey
name: Kempton, Eliza M. -R.
name: Baldridge, Andrew
name: Zhao, Y. Sunny
name: Zambelli, Roberto
name: Latham, David W.
name: Esquerdo, Gilbert A.
name: Berlind, Perry
name: Calkins, Michael L.
name: Howard, Andrew W.
name: Isaacson, Howard
name: Weiss, Lauren M.
name: Beatty, Thomas G.
name: Eastman, Jason D.
name: Penny, Matthew T.
name: Siverd, Robert J.
name: Lund, Michael B.
name: Labadie-Bartz, Jonathan
name: Zhou, G.
name: Curtis, Ivan A.
name: Joner, Michael D.
name: Manner, Mark
name: Relles, Howard
name: Scarpetta, Gaetano
name: Stephens, Denise C.
name: Stockdale, Chris
name: Tan, T. G.
name: DePoy, D. L.
name: Marshall, Jennifer L.
name: Pogge, Richard W.
name: Trueblood, Mark
name: Trueblood, Patricia
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery of KELT-18b, a transiting hot Jupiter in a 2.87d orbit around the bright (V=10.1), hot, F4V star BD+60 1538 (TYC 3865-1173-1). We present follow-up photometry, spectroscopy, and adaptive optics imaging that allow a detailed characterization of the system. Our preferred model fits yield a host stellar temperature of 6670+/-120 K and a mass of 1.524+/-0.069 Msun, situating it as one of only a handful of known transiting planets with hosts that are as hot, massive, and bright. The planet has a mass of 1.18+/-0.11 Mjup, a radius of 1.57+/-0.04 Rjup, and a density of 0.377+/-0.040 g/cm^3, making it one of the most inflated planets known around a hot star. We argue that KELT-18b's high temperature and low surface gravity, which yield an estimated ~600 km atmospheric scale height, combined with its hot, bright host make it an excellent candidate for observations aimed at atmospheric characterization. We also present evidence for a bound stellar companion at a projected separation of ~1100 AU, and speculate that it may have contributed to the strong misalignment we suspect between KELT-18's spin axis and its planet's orbital axis. The inferior conjunction time is 2457542.524998 +/-0.000416 (BJD_TDB) and the orbital period is 2.8717510 +/- 0.0000029 days. We encourage Rossiter-McLaughlin measurements in the near future to confirm the suspected spin-orbit misalignment of this system.
description: 16 pages, 13 figures, 6 tables, accepted to AJ
Secular light curves of 25 members of the Themis family of asteroids, suspected of exhibiting low level cometary activity
Creators: name: Ferrin, I.
name: Perez, M.
name: Rendon, J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: From 1996 to 2015 sixteen main belt asteroids were discovered exhibiting cometary activity (less than one per year), all of them during searches at the telescope. In this work we will explore another way to discover them. We reduced 192016 magnitude observations of 165 asteroids of the Themis family, using data from the astrometric-photometric database of the Minor Planet Center, MPCOBS, and measuring the absolute magnitudes from the phase plots. 25 objects of 165 (15.2%), exhibited bumps or enhancements in brightness that might indicate low level cometary activity. Since activity repeats at the same place in different orbits and in many occasions is centered at perihelion, activity might be due to water ice sublimation. As of September 2016, there are 717768 asteroids listed in the MPC files. If we assume that we do not have any false positives and the above percentage can be extrapolated to the whole Main Belt, the number of potentially active asteroid gets to the very large number of ~111.000. This number is much larger than the ones predicted in previous surveys and indicates one of three scenarios: A) there are many false positives in our detections and the real number of active asteroid is much smaller than we found, implying that the MPC astrometric-photometric database is only astrometric and not photometric. B) The location of active asteroids is restricted to the Themis family and an extrapolation to the whole belt is not possible. Or C) there are few false positives in our candidates and the main belt actually contains many low level active asteroids undetected by current surveys. Case C) would imply that the main belt is not a field of bare rocks but a graveyard of extinct comets, changing our current paradigm of the main belt. So it is of the outmost importance to verify observationally our candidates, and determine which of these scenarios is valid.
description: 37 pages, 18 Figures, 4 Tables
$3nj$-symbols and identities for $q$-Bessel functions
Creators: name: Groenevelt, Wolter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: The $6j$-symbols for representations of the $\mathrm{SU}(2)$ quantum group are given by Hahn-Exton $q$-Bessel functions. This interpretation leads to several summation identities for the $q$-Bessel functions. Multivariate $q$-Bessel functions are defined, which are shown to be limit cases of multivariate Askey-Wilson polynomials. The multivariate $q$-Bessel functions occur as $3nj$-symbols.
description: 18 pages; v2 contains minor corrections
Confined Dense Circumstellar Material Surrounding a Regular Type II Supernova: The Unique Flash-Spectroscopy Event of SN 2013fs
Creators: name: Yaron, O.
name: Perley, D. A.
name: Gal-Yam, A.
name: Groh, J. H.
name: Horesh, A.
name: Ofek, E. O.
name: Kulkarni, S. R.
name: Sollerman, J.
name: Fransson, C.
name: Rubin, A.
name: Szabo, P.
name: Sapir, N.
name: Taddia, F.
name: Cenko, S. B.
name: Valenti, S.
name: Arcavi, I.
name: Howell, D. A.
name: Kasliwal, M. M.
name: Vreeswijk, P. M.
name: Khazov, D.
name: Fox, O. D.
name: Cao, Y.
name: Gnat, O.
name: Kelly, P. L.
name: Nugent, P. E.
name: Filippenko, A. V.
name: Laher, R. R.
name: Wozniak, P. R.
name: Lee, W. H.
name: Rebbapragada, U. D.
name: Maguire, K.
name: Sullivan, M.
name: Soumagnac, M. T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: With the advent of new wide-field, high-cadence optical transient surveys, our understanding of the diversity of core-collapse supernovae has grown tremendously in the last decade. However, the pre-supernova evolution of massive stars, that sets the physical backdrop to these violent events, is theoretically not well understood and difficult to probe observationally. Here we report the discovery of the supernova iPTF13dqy = SN 2013fs, a mere ~3 hr after explosion. Our rapid follow-up observations, which include multiwavelength photometry and extremely early (beginning at ~6 hr post-explosion) spectra, map the distribution of material in the immediate environment (
description: Published in Nature Phys., including methods and SI
Exact Deconstruction of the 6D (2,0) Theory
Creators: name: Hayling, Joseph
name: Papageorgakis, Constantinos
name: Pomoni, Elli
name: Rodríguez-Gómez, Diego
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dimensional-deconstruction prescription of Arkani-Hamed, Cohen, Kaplan, Karch and Motl provides a mechanism for recovering the $A$-type (2,0) theories on $T^2$, starting from a four-dimensional $\mathcal N=2$ circular-quiver theory. We put this conjecture to the test using two exact-counting arguments: In the decompactification limit, we compare the Higgs-branch Hilbert series of the 4D $\mathcal N=2$ quiver to the "half-BPS" limit of the (2,0) superconformal index. We also compare the full partition function for the 4D quiver on $S^4$ to the (2,0) partition function on $S^4 \times T^2$. In both cases we find exact agreement. The partition function calculation sets up a dictionary between exact results in 4D and 6D.
description: 49 pages; v2 typos corrected, published version
Letter from E.M. Forster to Alec Randall, August 24, 1950
Creators: name: Forster, E. M. (Edward Morgan), 1879-1970
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Ambassadors
valueUri: http://id.worldcat.org/fast/806713
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Diplomatic and consular service
valueUri: http://id.worldcat.org/fast/894202
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Diplomats
valueUri: http://id.worldcat.org/fast/894415
subject: Forster, E. M. (Edward Morgan), 1879-1970
valueUri: http://id.worldcat.org/fast/40913
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455
subject: Randall, Alec, 1892-
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945

description: Part of a collection of letters written by E.M. Forster to Sir Alec Randall. They concern, firstly, his trip to Rumania, where he stayed with the Randalls; a tour in France in 1928; and his journey home. Later letters include references to such literary people as Herbert Read, Harold Monro and T.S. Eliot, plus a mention of reading James Joyce's "Ulysses". He also refers to his visit to Africa and his sentiments about the Spanish Civil War and W.W.II. Most of the later letters are signed "Morgan". E. M. Forster was born in London. He is principally known as a novelist and was associated with the Bloomsbury Group, which included Virginia Woolf. Among his best known works are "A Room With A View" (1911) and "A Passage To India" (1924). Many of his novels have been dramatized. He also wrote short stories, drama, non-fiction and criticism. He died at King's College, Cambridge, where he had resided since the mid 1940s. His friend, Sir Alec Randall was with the British legation in Bucharest, Rumania, and was later appointed to serve in Rome. Forster has had three operations and does not want to travel outside of England this year due to his health.
Spatial distribution of star formation related to ionized regions throughout the inner Galactic plane
Creators: name: Palmeirim, P.
name: Zavagno, A.
name: Elia, D.
name: Moore, T. J. T.
name: Whitworth, A.
name: Tremblin, P.
name: Traficante, A.
name: Merello, M.
name: Russeil, D.
name: Pezzuto, S.
name: Cambrésy, L.
name: Baldeschi, A.
name: Bandieramonte, M.
name: Becciani, U.
name: Benedettini, M.
name: Buemi, C.
name: Bufano, F.
name: Bulpitt, A.
name: Butora, R.
name: Carey, D.
name: Costa, A.
name: Deharveng, L.
name: Di Giorgio, A.
name: Eden, D.
name: Hajnal, A.
name: Hoare, M.
name: Kacsuk, P.
name: Leto, P.
name: Marsh, K.
name: Mège, P.
name: Molinari, S.
name: Molinaro, M.
name: Noriega-Crespo, A.
name: Schisano, E.
name: Sciacca, E.
name: Trigilio, C.
name: Umana, G.
name: Vitello, F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a comprehensive statistical analysis of star-forming objects located in the vicinities of 1 360 bubble structures throughout the Galactic Plane and their local environments. The compilation of ~70 000 star-forming sources, found in the proximity of the ionized (Hii) regions and detected in both Hi-GAL and GLIMPSE surveys, provided a broad overview of the different evolutionary stages of star-formation in bubbles, from prestellar objects to more evolved young stellar objects (YSOs). Surface density maps of star-forming objects clearly reveal an evolutionary trend where more evolved star-forming objects are found spatially located near the center, while younger star-forming objects are found at the edge of the bubbles. We derived dynamic ages for a subsample of 182 Hii regions for which kinematic distances and radio continuum flux measurements were available. We detect ~80% more star-forming sources per unit area in the direction of bubbles than in the surrounding fields. We estimate ~10% clump formation efficiency (CFE) of Hi-GAL clumps in bubbles, twice the CFE in fields not affected by feedback. We find higher CFE of protostellar clumps in younger bubbles, whose density of the bubble shells is higher. We argue that the formation rate from prestellar to protostellar phase is probably higher during the early stages of the bubble expansion. Evaluation of the fragmentation time inside the shell of bubbles advocates the preexistence of clumps in the medium before the bubble, as supported by numerical simulations. Approximately 23% of the Hi-GAL clumps are found located in the direction of a bubble, with 15% for prestellar clumps and 41% for protostellar clumps. We argue that the high fraction of protostellar clumps may be due to the acceleration of the star-formation process cause by the feedback of the (Hii) bubbles.
description: 15 pages, 12 figures. Accepted for publication by Astronomy and Astrophysics
Amerindian Misfortunes: Ethnographies of South American Rituals and Cosmologies on Danger, Illness, and Evil. Introduction to the Dossier
Creators: name: Rivera Andía, Juan Javier
Publisher: name: INDIANA
Year: 2015
Subjects: South America, rituals, danger, evil, illness

description: Presentación al dossier.
description: INDIANA, Bd. 32 (2015)
Normative theory of visual receptive fields
Creators: name: Lindeberg, Tony
Publisher: name: arXiv
Year: 2017
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: This article gives an overview of a normative computational theory of visual receptive fields, by which idealized functional models of early spatial, spatio-chromatic and spatio-temporal receptive fields can be derived in an axiomatic way based on structural properties of the environment in combination with assumptions about the internal structure of a vision system to guarantee consistent handling of image representations over multiple spatial and temporal scales. Interestingly, this theory leads to predictions about visual receptive field shapes with qualitatively very good similarity to biological receptive fields measured in the retina, the LGN and the primary visual cortex (V1) of mammals.
description: 15 pages, 17 figures. arXiv admin note: text overlap with arXiv:1210.0754
Letter from E.M, Forster to Alec Randall, July 8, 1951
Creators: name: Forster, E. M. (Edward Morgan), 1879-1970
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Diplomatic and consular service
valueUri: http://id.worldcat.org/fast/894202
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Literature, Modern
valueUri: http://id.worldcat.org/fast/1000172
subject: Ambassadors
valueUri: http://id.worldcat.org/fast/806713
subject: Novelists, English
valueUri: http://id.worldcat.org/fast/1039718
subject: Diplomats
valueUri: http://id.worldcat.org/fast/894415
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Randall, Alec, 1892-
subject: Forster, E. M. (Edward Morgan), 1879-1970
valueUri: http://id.worldcat.org/fast/40913
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Novelists
valueUri: http://id.worldcat.org/fast/1039684
subject: Modernism (Literature)
valueUri: http://id.worldcat.org/fast/1024455

description: Part of a collection of letters written by E.M. Forster to Sir Alec Randall. They concern, firstly, his trip to Rumania, where he stayed with the Randalls; a tour in France in 1928; and his journey home. Later letters include references to such literary people as Herbert Read, Harold Monro and T.S. Eliot, plus a mention of reading James Joyce's "Ulysses". He also refers to his visit to Africa and his sentiments about the Spanish Civil War and W.W.II. Most of the later letters are signed "Morgan". E. M. Forster was born in London. He is principally known as a novelist and was associated with the Bloomsbury Group, which included Virginia Woolf. Among his best known works are "A Room With A View" (1911) and "A Passage To India" (1924). Many of his novels have been dramatized. He also wrote short stories, drama, non-fiction and criticism. He died at King's College, Cambridge, where he had resided since the mid 1940s. His friend, Sir Alec Randall was with the British legation in Bucharest, Rumania, and was later appointed to serve in Rome. Forster's friends Patrick and Sydney Wilkinson will be Copenhagen and Forster has asked them to visit Randall.
National Association of Women Artists 1961 Annual Exhibition, May 11 - May 28th, 1961
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1961

description: The National Association of Women Artists (NAWA) was established in 1889 and is the oldest professional women's fine arts organization in the United States. NAWA's mission is to promote awareness of, and interest in, visual art created by women in the United States. As part of this effort NAWA holds an annual exhibition of works by members of the association and publishes an exhibition catalog to accompany or commemorate the annual exhibitions. These catalogs not only function as an exhibition catalog, but also as a document that summarizes the structure, membership, and activities of the association.Information that can be found in these catalogs includes lists of officers, members of the executive board and committees, prize winners, lists of exhibitor and members, and images of some of the artwork exhibited. Catalogs from the 2000s also include information on NAWA events and activities beyond the annual exhibition.Please note that the numbering of the annual catalogs was adjusted in 1960 and again in 1971. For example, NAWA designated the annual exhibition in 1960 as the 70th Anniversary Exhibition after 1959 was the 67th Annual Exhibition. These adjustments appear to have been made to reflect the date of the founding of the association, so that, by 1989, the annual exhibition commemorated the 100-year anniversary of the founding of NAWA in 1889.
Sharp limit of the viscous Cahn--Hilliard equation and thermodynamic consistency
Creators: name: Dreyer, Wolfgang
name: Guhlke, Clemens
Publisher: name: Weierstrass Institute
Year: 2013
Subjects: subject: Cahn-Hilliard equation
subject: thermodynamics
subject: phase transitions
subject: asymptotic expansions
subject: 35K25
subject: 35C20
subject: 82C26

description: Diffuse and sharp interface models represent two alternatives to describe phase transitions with an interface between two coexisting phases. The two model classes can be independently formulated. Thus there arises the problem whether the sharp limit of the diffuse model fits into the setting of a corresponding sharp interface model. We call a diffuse model admissible if its sharp limit produces interfacial jump conditions that are consistent with the balance equations and the 2nd law of thermodynamics for sharp interfaces. We use special cases of the viscous Cahn-Hilliard equation to show that there are admissible as well as non-admissible diffuse interface models.
National Association of Women Artists 1962 Annual Exhibition, May 10 - May 27th, 1962
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 1962

description: The National Association of Women Artists (NAWA) was established in 1889 and is the oldest professional women's fine arts organization in the United States. NAWA's mission is to promote awareness of, and interest in, visual art created by women in the United States. As part of this effort NAWA holds an annual exhibition of works by members of the association and publishes an exhibition catalog to accompany or commemorate the annual exhibitions. These catalogs not only function as an exhibition catalog, but also as a document that summarizes the structure, membership, and activities of the association.Information that can be found in these catalogs includes lists of officers, members of the executive board and committees, prize winners, lists of exhibitor and members, and images of some of the artwork exhibited. Catalogs from the 2000s also include information on NAWA events and activities beyond the annual exhibition.Please note that the numbering of the annual catalogs was adjusted in 1960 and again in 1971. For example, NAWA designated the annual exhibition in 1960 as the 70th Anniversary Exhibition after 1959 was the 67th Annual Exhibition. These adjustments appear to have been made to reflect the date of the founding of the association, so that, by 1989, the annual exhibition commemorated the 100-year anniversary of the founding of NAWA in 1889.
Leptoquark mechanism of neutrino masses within the grand unification framework
Creators: name: Doršner, Ilja
name: Fajfer, Svjetlana
name: Košnik, Nejc
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We demonstrate viability of the one-loop neutrino mass mechanism within the framework of grand unification when the loop particles comprise scalar leptoquarks (LQs) and quarks of the matching electric charge. This mechanism can be implemented in both supersymmetric and non-supersymmetric models and requires the presence of at least one LQ pair. The appropriate pairs for the neutrino mass generation via the up-type and down-type quark loops are $S_3$-$R_2$ and $S_{1,\,3}$-$\tilde{R}_2$, respectively. We consider two phenomenologically distinct regimes for the LQ masses in our analysis. First regime calls for very heavy LQs in the loop. It can be naturally realised with the $S_{1,\,3}$-$\tilde{R}_2$ scenarios when the LQ masses are roughly between $10^{12}$ GeV and $5 \times 10^{13}$ GeV. These lower and upper bounds originate from experimental limits on partial proton decay lifetimes and perturbativity constraints, respectively. Second regime corresponds to the collider accessible LQs in the neutrino mass loop. That option is viable for the $S_3$-$\tilde{R}_2$ scenario in the models of unification that we discuss. If one furthermore assumes the presence of the type II see-saw mechanism there is an additional contribution from the $S_3$-$R_2$ scenario that needs to be taken into account beside the type II see-saw contribution itself. We provide a complete list of renormalizable operators that yield necessary mixing of all aforementioned LQ pairs using the language of $SU(5)$. We furthermore discuss several possible embeddings of this mechanism in $SU(5)$ and $SO(10)$ gauge groups.
description: minor typos fixed, 14 pages, 1 figure
UTILIZING T-O-E FRAMEWORK FOR EVALUATING THE USE OF SIMULATORS IN SNOWPLOW DRIVER TRAINING
Creators: name: Zheng, Yanchao
Publisher: name: Purdue University Graduate School
Year: 2022
Subjects: Building construction management and project planning
Innovation management
Organisational behaviour
Organisational planning and management
Public sector organisation and management

description: Driving simulators have been introduced by some American states’ department of transportation (DOT) as a supplementary tool to train their snowplow drivers. This is a costly investment that requires careful planning. Yet, there is a current lack of recent studies that holistically evaluate factors affecting the decision-making process on adopting the driving simulator in winter snowplow driver training. The current research aims to fill this gap by employing the theoretical framework of Technology-Organization-Environment (T-O-E) to explore factors affecting state DOTs’ decision-making process of adopting snowplow driving simulator in driver training. Relevant factors were identified first using a scoping review of literature, and then validated by interviews with DOT stakeholders. Subsequent findings from the state DOT survey suggests that perceived long-term effect on public safety, cost related to simulator training, and ease of the relocation of simulator are the top contributors when it comes to the factors affecting decision-making on adoption of snowplow driving simulator in training. The resulted T-O-E framework contains 11 factors cross-verified from various sources, in which most factors such as simulator fidelity and relative advantage were categorized to technology context under the T-O-E framework, while the main environment factor relates to normative and mimetic pressure. The paper contributes to academic research by applying T-O-E to offer decision making support for using simulator technology for training of snowplow drivers; and to practitioners by providing state DOT decision makers a framework to analyze different factors on adopting snowplow driving simulators in training.