cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Temporal control of vulval precursor cell fate patterning in Caenorhabditis elegans
Creators: Li, Ji
Publisher: name: Columbia University
Year: 2011
Subjects: subject: Developmental biology
subject: Genetics
subject: FOS: Biological sciences

description: Development of a multicellular organism requires precise coordination of temporal and spatial cues to ensure that developmental events occur at the correct time and place. C. elegans vulval development offers a convenient experimental system for investigating the temporal and spatial regulation of multiple developmental decisions in response to different patterning signals. In this thesis, I present my studies on the temporal control of Vulval Precursor Cell (VPC) fate patterning through analyses of VPC development defects in heterochronic mutants. I show that loss of the miRNA lin-4 inhibits LIN-12/Notch activity through persistence of LIN-14, but not LIN-28 or HBL-1. Persistent lin-14 blocks LIN-12 activity without interfering with the key events of LIN-12/Notch signal transduction, and lin-14 activity in the second larval stage is sufficient to prevent premature LIN-12 activation. I also present evidence that persistent lin-14 activity impedes extension of the VPC apical domains, and that ectopic Wnt signaling prevents the daughters of uninduced VPCs from fusing with the major hypodermal syncytium in lin-4 null mutants. Finally, through characterization of heterochronic mutants that exhibit precocious or delayed vulval induction, I provide clues to possible mechanisms underlying the temporal control of vulval induction.
Temporary Ruins: Miyamoto Ryūji's Architectural Photography in Postmodern Japan
Creators: Cushman, Carrie
Publisher: name: Columbia University
Year: 2018
Subjects: Art
History
Architectural photography
Ruins in art

description: This dissertation focuses on the acclaimed Japanese photographer Miyamoto Ryūji (b. 1947), whose work deals with a range of structures and spaces that I describe as ruinous: demolition sites that document the incessant development of Tokyo in the 1980s; man-made shelters of the urban homeless; the ungoverned Kowloon Walled City in Hong Kong; Kobe after the 1995 Hanshin-Awaji Earthquake; pinhole photographs of the late-modern Japanese urbanscape; and, most recently, the Tōhoku region after the 2011 earthquake, tsunami and nuclear disaster. This project intersects an architectural and urban history of postwar Japan with the close visual analysis of Miyamoto’s photographs to show how images of ruins have served as a visual trope to challenge modernist narratives of progress and late-capitalist development. Second, I argue that these images connect multiple layers of trauma in the contemporary Japanese experience, illuminating the relationship between memory and image essential for an understanding of the role of photography in narrations of history. By examining this relationship, I clarify the ways in which postwar history has been narrated in Japan and how certain images (and the memories they spark) complicate the official narrative.
      Miyamoto Ryūji’s work is a compelling example of the ruin as a key theme in postwar and contemporary Japanese photography because of the diverse social and historical issues that converge in his work: urban planning, the commodification of architecture, historical preservation, natural and man-made disasters, homelessness, and, uniting all of these concerns, memory and its relationship to history. Outside of Hiroshima and Nagasaki, images of ruins are an underexplored way of understanding and documenting memory in Japan. Throughout the dissertation, I unearth the ruin as a central motif of postwar and contemporary Japanese photography in spite of widespread claims that Japan is a country without ruins. In doing so, I propose new ways of understanding the ruin that are specific to modern Japanese history and culture.
Carrollian Physics at the Black Hole Horizon
Creators: name: Donnay, Laura
name: Marteau, Charles
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that the geometry of a black hole horizon can be described as a Carrollian geometry emerging from an ultra-relativistic limit where the near-horizon radial coordinate plays the role of a virtual velocity of light tending to zero. We prove that the laws governing the dynamics of a black hole horizon, the null Raychaudhuri and Damour equations, are Carrollian conservation laws obtained by taking the ultra-relativistic limit of the conservation of an energy-momentum tensor; we also discuss their physical interpretation. We show that the vector fields preserving the Carrollian geometry of the horizon, dubbed Carrollian Killing vectors, include BMS-like supertranslations and superrotations and that they have non-trivial associated conserved charges on the horizon. In particular, we build a generalization of the angular momentum to the case of non-stationary black holes. Finally, we discuss the relation of these conserved quantities to the infinite tower of charges of the covariant phase space formalism.
description: 20 pages, 1 figure. Corrected typos
Carduus millefolius R. E. Fr.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Carduus
Carduus millefolius

description: Carduus millefolius R.E.Fr.  —
Habit: Herb.
Habitat: UMF, HZ, AZ; 2 500–3 500 m. Distribution: IIIb.
 Voucher: Kamweti Track, Alt. 3074 m, 1 Feb. 2015, SAJIT 003072 (HIB).
References: Blundell (1987), Bussmann (1993, 1994), Beentje (2000), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 91, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Carduus nyassanus subsp. nyassanus
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Carduus
Carduus nyassanus
Carduus nyassanus (s.moore) r.e.fr. subsp. nyassanus

description: Carduus nyassanus (S.Moore) R.E.Fr. subsp. nyassanus  —
Habit: Herb.
Habitat: LMWF, LMDF, BZ, UMF, HZ; 1 400–3 500 m. Distribution: II.
 Voucher: Sirimon Track, Alt. 2 619 m, 5 Oct. 2004, Muasya & Gehrke BG-Af088 (EA).
Reference: Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 91, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Google Scholar: Highly Comprehensive Coverage... Inside a Hermetic Black Box
Creators: name: Martín, Alberto Martín
Publisher: name: Zenodo
Year: 2019
Subjects: Google Scholar
academic search engines
citation indexes
Web of Science
Scopus
Microsoft Academic
Dimensions
COCI
CrossRef

description: High level overview of Google Scholar as a source of bibliographic data, including comparisons with other sources (Web of Science, Scopus, Microsoft Academic, Dimensions, COCI) and a discussion of its main strengths and weaknesses
Identification of multilayered particles from scattering data by a clustering method
Creators: name: Gutman, Semion
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mathematical Physics (math-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35R30, 65K10, 81F05

description: A multilayered particle is illuminated by plane acoustic or electromagnetic waves of one or several frequencies. We consider the inverse scattering problem for the identification of the layers and of the refraction coefficients of the scatterer in a non-Born region of scattering. Local deterministic and global probabilistic minimization methods are studied. A special Reduction Procedure is introduced to reduce the dimensionality of the minimization space. Deep's and the Multilevel Single-Linkage methods for global minimization are used for the solution of the inverse problem. Their performance is analyzed for various multilayer configurations.
Physics reach of rare b-decays
Creators: name: Hiller, Gudrun
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss the theoretical and empirical status of $b \to s γ$, $b \to s \ell^+ \ell^-$ decays, as well as their future prospects. I emphasize those observables in rare $b$-decays which can potentially establish new physics and distinguish between extensions of the Standard Model. I briefly review current models of electroweak symmetry breaking, all of which can carry interesting flavor characteristics accessible with $b$-physics experiments.
description: Invited talk at the 5th International Conference on Hyperons, Charm and Beauty Hadrons (BEACH 2002), University of British Columbia, Vancouver, June 25-29, 2002. To be published in the proceedings; 7 pages, 5 figures, uses espcrc2.sty
Tempus Edax: Time in Ovid’s Tomitan Poems
Creators: Poole, Ursula
Publisher: name: Columbia University
Year: 2021
Subjects: Classical poetry
Time in literature
Subjectivity in literature

description: This dissertation treats the subject of temporality in Ovid’s exile poetry. I argue that the post-exile texts feature a systematic distortion of time that cannot be conveyed by conventional chronometry. I read this phenomenon as a testament to the condition of the displaced person: the trauma of exile fosters a dissonance between interior (subjective) and exterior (objective) temporality, whereby time becomes stagnant, retrospective, or compulsively circular. The object of this thesis is to chart the evolution of this relationship between dual temporal schemata—and the schism in representations of time that occurs between Ovid’s pre- and post-exilic works. The distinct temporal aesthetic that emerges is a constitutive element of a textual portrait of exilic consciousness. This unique temporality, moreover, is consistently defined against the temporal prescriptions of the Augustan regime. The ordering of the Augustan subject’s existence through temporal regulations—such as the Caesarian calendar and the myth-enshrined teleology of the Julian imperial line—codified imperial ideology. Although Ovid was, in one sense, a prime participant in this program as author of the Metamorphoses and Fasti, much of Ovid’s elegy ran afoul of Augustan moral codes due to its erotic content and celebration of an individualistic ethos, the emblems of which—such as inborn poetic ingenium and the private and subjective experience of the individual—feature so prominently in his poetry. In the context of Augustan-age incursions of public mores into private life, Ovid put himself at odds with the Augustan value system in his art and actions, which likely occasioned (or was a catalyst for) his exile. He thus had a vested interest in (i) resisting the dominant teleology of the Augustan regime and the self-legitimating semiotic system of which it was a part and (ii) mounting opprobrium against the regime that ousted him. The poet’s alternative vistas of temporality militate against the Augustan program by (a) reclaiming time as a subjective experience that cannot be delimited by the parameters of an official time scheme, and (b) evacuating Augustan time of its meaning within the fictional world of the poetry, thereby exposing it as a socially-constructed, rather than an absolute, reality.
Analog quantum simulation of the spinor-four Dirac equation with an artificial gauge field
Creators: name: Garreau, Jean Claude
name: Zehnlé, Véronique
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A two-dimensional spatially and temporally modulated Wannier-Stark system of ultracold atoms in optical lattices is shown to mimic the behavior of a Dirac particle. Suitable additional modulations generate an artificial gauge field which simulates a magnetic field and imposes the use of the full spinor-four Dirac equation.
description: 9 Pages, 4 figures. Published in PRA
Algebraic Entropy of Birational Maps with Invariant Curves
Creators: name: Bellon, M. P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The relevance of the algebraic entropy in the study of birational discrete time dynamical systems highlights the need to relate it to other characteristics of these systems. In this letter, two complementary proofs are given that the foliation of the space by invariant curves implies that the algebraic entropy is zero.
description: 11 pages, no figure
Gabriel-Roiter measure, representation dimension and rejective chains
Creators: name: Conde, Teresa
Publisher: name: arXiv
Year: 2019
Subjects: subject: Representation Theory (math.RT)
subject: Category Theory (math.CT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: The Gabriel-Roiter measure is used to give an alternative proof of the finiteness of the representation dimension for Artin algebras, a result established by Iyama in 2002. The concept of Gabriel-Roiter measure can be extended to abelian length categories and every such category has multiple Gabriel-Roiter measures. Using this notion, we prove the following broader statement: given any object $X$ and any Gabriel-Roiter measure $μ$ in an abelian length category $\mathcal{A}$, there exists an object $X'$ which depends on $X$ and $μ$, such that $Γ= \operatorname{End}_{\mathcal{A}}(X \oplus X')$ has finite global dimension. Analogously to Iyama's original results, our construction yields quasihereditary rings and fits into the theory of rejective chains.
description: 17 pages. Small correction was made
Ten Ragas to a Disco Beat: Futurism and Pirate Modernity in South Asian Electronica
Creators: Schirmann, Kyle Lindstrom
Publisher: name: Columbia University
Year: 2015
Subjects: Music
South Asians

description: Ravi Sundaram’s conception of recycled, or pirate, modernity was first deployed to explain the extralegal circuits of production and consumption of pirated and counterfeit goods, particularly in India. This thesis argues that the production, performance, distribution, and consumption of South Asian electronic music can be read under the specter of an aestheticization of the circuits of pirate modernity. Through sampling, glitching, and remixing artifacts, sometimes with pirated software or counterfeit hardware, South Asian electronica situates itself in youth culture as an underground form of sound. This is a music that concerns itself with futurity and futurism, doubly so by its links to the diaspora and to Afrofuturist readings, and with the physicality of the sound wave. The thesis also suggests a shift in the economic and political import of pirate modernity wrought by this aestheticization, examining how it has been appropriated for profit and mobilized for political use.
A Matrix Element for Chaotic Tunnelling Rates and Scarring Intensities
Creators: name: Creagh, Stephen C.
name: Whelan, Niall D.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: It is shown that tunnelling splittings in ergodic double wells and resonant widths in ergodic metastable wells can be approximated as easily-calculated matrix elements involving the wavefunction in the neighbourhood of a certain real orbit. This orbit is a continuation of the complex orbit which crosses the barrier with minimum imaginary action. The matrix element is computed by integrating across the orbit in a surface of section representation, and uses only the wavefunction in the allowed region and the stability properties of the orbit. When the real orbit is periodic, the matrix element is a natural measure of the degree of scarring of the wavefunction. This scarring measure is canonically invariant and independent of the choice of surface of section, within semiclassical error. The result can alternatively be interpretated as the autocorrelation function of the state with respect to a transfer operator which quantises a certain complex surface of section mapping. The formula provides an efficient numerical method to compute tunnelling rates while avoiding the need for the exceedingly precise diagonalisation endemic to numerical tunnelling calculations.
description: Submitted to Annals of Physics. This work has been submitted to Academic Press for possible publication
Carduus nyassanus subsp. kikuyorum C. Jeffrey
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Carduus
Carduus nyassanus
Carduus nyassanus subsp. kikuyorum (r.e.fr.) c.jeffrey

description: Carduus nyassanus subsp. kikuyorum (R.E.Fr.) C.Jeffrey  —
Habit: Herb.
Habitat: LMWF, LMDF, BZ, UMF, HZ; 1 600–3 400 m. Distribution: II.
 Voucher: Chogoria Track, Alt. 2 411 m, 17 Aug. 2013, SAJIT 001354 (HIB).
References: Bussmann (1993, 1994), Beentje (2000), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 91, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Fundamental groups of line arrangements: Enumerative aspects
Creators: name: Suciu, Alexander I.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 14F35, 32S22, 52C35, 57M05 (primary), 20E07, 20F14, 20J05 (secondary)

description: This is a survey of some recent developments in the study of complements of line arrangements in the complex plane. We investigate the fundamental groups and finite covers of those complements, focusing on homological and enumerative aspects. The unifying framework for this study is the stratification of the character variety of the fundamental group, G, by the jumping loci for cohomology with coefficients in rank 1 local systems. Counting certain torsion points on these "characteristic" varieties yields information about the homology of branched and unbranched covers of the complement, as well as on the number of low-index subgroups of its fundamental group. We conclude with two conjectures, expressing the lower central series quotients of G/G'' (and, in some cases, G itself) in terms of the closely related "resonance" varieties. We illustrate the discussion with a number of detailed examples, some of which reveal new phenomena.
description: Revised and expanded; 37 pages, 13 figures; to appear in Contemporary Mathematics (Proceedings of the AMS Special Session ``Enumerative Geometry in Physics," held in Lowell, MA, April 2000)
Relativistic second-order perturbations of the Einstein-de Sitter Universe
Creators: name: Matarrese, S.
name: Mollerach, S.
name: Bruni, M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the evolution of relativistic perturbations in the Einstein-de Sitter cosmological model, including second-order effects. The perturbations are considered in two different settings: the widely used synchronous gauge and the Poisson (generalized longitudinal) one. Since, in general, perturbations are gauge dependent, we start by considering gauge transformations at second order. Next, we give the evolution of perturbations in the synchronous gauge, taking into account both scalar and tensor modes in the initial conditions. Using the second-order gauge transformation previously defined, we are then able to transform these perturbations to the Poisson gauge. The most important feature of second-order perturbation theory is mode-mixing, which here also means, for instance, that primordial density perturbations act as a source for gravitational waves, while primordial gravitational waves give rise to second-order density fluctuations. Possible applications of our formalism range from the study of the evolution of perturbations in the mildly non-linear regime to the analysis of secondary anisotropies of the Cosmic Microwave Background.
description: Revised version with minor changes, accepted in The Physical Review D; LaTeX file using RevTeX macros, 28 pages
Additional file 1: of Population-based bloodstream infection surveillance in rural Thailand, 2007â 2014
Creators: name: Rhodes, Julia
name: Possawat Jorakate
name: Sirirat Makprasert
name: Ornuma Sangwichian
name: Anek Kaewpan
name: Thantapat Akarachotpong
name: Prasong Srisaengchai
name: Somsak Thamthitiwat
name: Supphachoke Khemla
name: Somkid Yuenprakhon
name: Wantana Paveenkittiporn
name: Anusak Kerdsin
name: Whistler, Toni
name: Baggett, Henry
name: Gregory, Christopher
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Figure S1. Community-onset (CO) BSIs caused by Gram-negative pathogens by month in Sa Kaeo and Nakhon Phanom provinces, Thailand, 2007â 2014. (PDF 156 kb)
title: Infrarote Galaxien
Creators: name: Elsässer, Hans
Publisher: name: Goltze
Year: 1994
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Jahrbuch der BWG
subject: 52

description: Die Astronomie hat in jüngster Zeit viel Neues über die Entstehung der Sterne gelernt. Wie und wo sich Sterne bilden, ist heute eine der Beobachtung zugängliche Thematik: Innerhalb unseres eigenen Milchstraßensystems sind jetzt eine ganze Reihe von Regionen identifiziert, in denen gegenwärtig Sterne in der Entstehung begriffen oder vor kurzem entstanden sind. Dies ist neuen, der modernen Technologie entwachsenen Meßmethoden zu verdanken, die der Astronomie das Infrarote und den daran anschließenden Bereich der kürzesten Radiowellen erschlossen haben.
Die Geburt von Sternen beginnt im interstellaren Raum bei sehr tiefen Temperaturen, in Wolken aus molekularem Gas und kleinen Staubteilchen. Strahlung dieses frühen Stadiums kommt deshalb im Infraroten zum Vorschein. Und auch in etwas späteren Phasen des neuen Sterns macht sich dieser vorwiegend als infrarote Quelle bemerkbar, da er noch immer in einer kalten Staubhülle steckt, die seine Strahlung absorbiert und zu längeren Wellen umsetzt. Der Millimeterbereich dagegen ist für die Beobachtung der ausgedehnten Molekülwolken, der Brutstätten neuer Sterne, von Bedeutung. Herr Mezger hat in seinem Vortrag näheres dazu ausgeführt.
Die Entdeckung von Galaxien mit stark überhöhter Strahlung im Infraroten weckte vor wenigen Jahren die Hoffnung, anhand dieser Objekte auch Einblick in die frühe Entwicklung der großen Sternsysteme, ähnlich dem Milchstraßensystem, zu erhalten; das hat sich jedoch bisher nur unvollkommen bestätigt. Dagegen kamen so bis dahin unbekannte Phänomene zutage, von denen jetzt zunächst die Rede sein soll.
Constraining URCA cooling of neutron stars from the neutron radius of 208Pb
Creators: name: Horowitz, C. J.
name: Piekarewicz, J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent observations by the Chandra observatory suggest that some neutron stars may cool rapidly, perhaps by the direct URCA process which requires a high proton fraction. The proton fraction is determined by the nuclear symmetry energy whose density dependence may be constrained by measuring the neutron radius of a heavy nucleus, such as 208Pb. Such a measurement is necessary for a reliable extrapolation of the proton fraction to the higher densities present in the neutron star. A large neutron radius in 208Pb implies a stiff symmetry energy that grows rapidly with density, thereby favoring a high proton fraction and allowing direct URCA cooling. Predictions for the neutron radius in 208Pb are correlated to the proton fraction in dense matter by using a variety of relativistic effective field-theory models. Models that predict a neutron (Rn) minus proton (Rp) root-mean-square radius in 208Pb to be Rn-Rp<0.20 fm have proton fractions too small to allow the direct URCA cooling of 1.4 solar-mass neutron stars. Conversely, if Rn-Rp>0.25 fm, the direct URCA process is allowed (by all models) to cool down a 1.4 solar-mass neutron star. The Parity Radius Experiment at Jefferson Laboratory aims to measure the neutron radius in 208Pb accurately and model independently via parity-violating electron scattering. Such a measurement would greatly enhance our ability to either confirm or dismiss the direct URCA cooling of neutron stars.
description: 8 pages with 3 (eps) figures
Counting Classical Nodes in Quantum Networks
Creators: name: Lu, He
name: Huang, Chien-Ying
name: Li, Zheng-Da
name: Yin, Xu-Fei
name: Zhang, Rui
name: Liao, Teh-Lu
name: Chen, Yu-Ao
name: Li, Che-Ming
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum networks illustrate the use of connected nodes of quantum systems as the backbone of distributed quantum information processing. When the network nodes are entangled in graph states, such a quantum platform is indispensable to almost all the existing distributed quantum tasks. Unfortunately, real networks unavoidably suffer from noise and technical restrictions, making nodes transit from quantum to classical at worst. Here, we introduce a figure of merit in terms of the number of classical nodes for quantum networks in arbitrary graph states. Such a network property is revealed by exploiting a novel Einstein-Podolsky-Rosen steerability. Experimentally, we demonstrate photonic quantum networks of $n_q$ quantum nodes and $n_c$ classical nodes with $n_q$ up to 6 and $n_c$ up to 18 using spontaneous parametric down-conversion entanglement sources. We show that the proposed method is faithful in quantifying the classical defects in prepared multiphoton quantum networks. Our results provide novel identification of generic quantum networks and nonclassical correlations in graph states.
Carduus schimperi subsp. schimperi
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Carduus
Carduus schimperi
Carduus schimperi sch.bip. subsp. schimperi

description: Carduus schimperi Sch.Bip. subsp. schimperi  —
Habit: Herb.
Habitat: LMWF, LMDF; 1 700–2 700 m. Distribution: II.
 Voucher: Near Sirimon Track Gate, Alt. 2 643 m, 8 Jan. 2014, SAJIT 001603 (HIB).
 References: Rehder et al. (1981), Bussmann (1993, 1994, 2006), Beentje (2000), Abdi (2013), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 91, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Cantorian Fractal Spacetime, Quantum-like Chaos and Scale Relativity in Atmospheric Flows
Creators: name: Selvam, A. M.
name: Fadnavis, Suvarna
Publisher: name: arXiv
Year: 1998
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Cantorian fractal spacetime fluctuations characterize quantumlike chaos in atmospheric flows. The macroscale atmospheric flow structure behaves as a unified whole quantum system, where, the superimposition of a continuum of eddies results in the observed global weather patterns with long-range spatiotemporal correlations such as that of the widely investigated El Nino phenomenon. Large eddies are visualised as envelopes enclosing smaller eddies, thereby generating a hierarchy of eddy circulations, originating initially from a fixed primary small scale energising perturbation, e.g. the frictional upward momentum flux at the boundary layer of the earth's surface. In this paper it is shown that the relative motion concepts of Einstein's special and general theories of relativity are applicable to eddy circulations originating from a constant primary perturbation.
description: 14 pages, 1 figure. Submitted for consideration of publication in Chaos, Solitons and Fractals
Avoided crossings in mesoscopic systems: electron propagation on a non-uniform magnetic cylinder
Creators: name: Exner, Pavel
name: Joye, Alain
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q20

description: We consider an electron constrained to move on a surface with revolution symmetry in the presence of a constant magnetic field $B$ parallel to the surface axis. Depending on $B$ and the surface geometry the transverse part of the spectrum typically exhibits many crossings which change to avoided crossings if a weak symmetry breaking interaction is introduced. We study the effect of such perturbations on the quantum propagation. This problem admits a natural reformulation to which tools from molecular dynamics can be applied. In turn, this leads to the study of a perturbation theory for the time dependent Born-Oppenheimer approximation.
Tensor Analysis and the Dynamics of Motor Cortex
Creators: Seely, Jeffrey Scott
Publisher: name: Columbia University
Year: 2017
Subjects: subject: Neurosciences
subject: FOS: Clinical medicine
subject: Calculus of tensors
subject: System analysis
subject: Motor cortex

description: Neural data often span multiple indices, such as neuron, experimental condition, trial, and time, resulting in a tensor or multidimensional array. Standard approaches to neural data analysis often rely on matrix factorization techniques, such as principal component analysis or nonnegative matrix factorization. Any inherent tensor structure in the data is lost when flattened into a matrix. Here, we analyze datasets from primary motor cortex from the perspective of tensor analysis, and develop a theory for how tensor structure relates to certain computational properties of the underlying system. Applied to the motor cortex datasets, we reveal that neural activity is best described by condition-independent dynamics as opposed to condition-dependent relations to external movement variables. Motivated by this result, we pursue one further tensor-related analysis, and two further dynamical systems-related analyses. First, we show how tensor decompositions can be used to denoise neural signals. Second, we apply system identification to the cortex- to-muscle transformation to reveal the intermediate spinal dynamics. Third, we fit recurrent neural networks to muscle activations and show that the geometric properties observed in motor cortex are naturally recapitulated in the network model. Taken together, these results emphasize (on the data analysis side) the role of tensor structure in data and (on the theoretical side) the role of motor cortex as a dynamical system.
Carduus schimperi subsp. platyphyllus C. Jeffrey
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Carduus
Carduus schimperi
Carduus schimperi subsp. platyphyllus (r.e.fr.) c.jeffrey

description: E   Carduus schimperi subsp. platyphyllus (R.E.Fr.) C.Jeffrey  —
Habit: Herb.
Habitat: HZ, AZ, NZ; 2 800–5 000 m. Distribution: IIIc.
 Voucher: Chogoria Track, Alt. 3 602 m, 24 Jan. 2015, SAJIT 002808 (HIB).
References: Young & Peacock (1985), Beentje (2000).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 91, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Locally solvable subnormal and quasinormal subgroups of division rings
Creators: name: Danh, Le Qui
name: Khanh, Huynh Viet
Publisher: name: arXiv
Year: 2019
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: Let $D$ be a division ring with center $F$, and $G$ a subnormal or quasinormal subgroup of $D^*$. We show that if $G$ is locally solvable, then $G$ is contained in $F$.
The long term effects of capital gains taxes in New Zealand
Creators: name: Coleman, Andrew
name: Coleman, Andrew
Publisher: name: Unknown
Year: 2009
Subjects: subject: Public Economics
subject: Inflation
subject: credit constraints
subject: capital income taxes
subject: housing markets
subject: home-ownership rates
subject: monetary policy

description: This paper develops a model of the housing market incorporating a construction sector, a rental sector, and a housing demand sector to examine the long term consequences for the housing market of different types of capital gains taxes. The sector is based on an overlapping generations model of the economy that included a detailed representation of the credit constraints and tax regulations affecting households. The model suggests that capital gains taxes will raise rents, increase homeownership rates, rebalance the housing stock towards smaller houses, and increase the net foreign asset position. The implications for welfare are much less clear, however, particularly for young low income households that will face higher rents.
Interwar Romanian Fashion and Beauty in American Vogue
Creators: name: D. Andras, Sonia
Publisher: name: Presa Universitară Clujeană
Year: 2023
Subjects: subject: Cocéa, Alice
subject: Romania
subject: Clothing trade
subject: United States
subject: Models (Persons)
subject: Marie, Queen, consort of Ferdinand I, King of Romania, 1875-1938
subject: Vogue (London, England)
subject: Fashion
subject: Bibesco, Marthe, 1886-1973

description: This paper explores Romanian women's influence on US fashion as representatives of European artistic, cultural, and social elites and as genuine Parisiennes. This study treats the Parisienne model as a symbolic marker of elegance driven by French, namely Parisian, aesthetic philosophies, and technical prowess. In this sense, Romanian women function as liminal agents of influence and scrutiny, in-between local, regional, continental, and worldwide ethnic, cultural, social, ideological, and religious identities. The research focuses on primary visual and textual materials published in the original American edition of Vogue, based in New York. These sources, including fashion and news reports, photographs, illustrations, and full-length articles, are analyzed in the context of Romanian-American cultural and aesthetic negotiations, using an informed disciplinary methodology focusing on fashion studies and discourse analysis of written and visual texts. Interwar Romanian women's impact on European and American fashion remains a largely unexplored topic. This paper aims to open a new field of inquiry, adding fashion studies in the media to the diversity of topics regarding Romanian-American cultural and artistic negotiations.
Multiscale thermodynamics of charged mixtures
Creators: name: Vagner, Petr
name: Pavelka, Michal
name: Esen, Ogul
Publisher: name: arXiv
Year: 2019
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A multiscale theory of interacting continuum mechanics and thermodynamics of mixtures of fluids, electrodynamics, polarization and magnetization is proposed. The mechanical (reversible) part of the theory is constructed in a purely geometric way by means of semidirect products. This leads to a complex Hamiltonian system with a new Poisson bracket, which can be used in principle with any energy functional. The thermodynamic (irreversible) part is added as gradient dynamics, generated by derivatives of a dissipation potential, which makes the theory part of the GENERIC framework. Subsequently, Dynamic MaxEnt reductions are carried out, which lead to reduced GENERIC models for smaller sets of state variables. Eventually, standard engineering models are recovered as the low-level limits of the detailed theory. The theory is then compared to recent literature.
description: Submitted to journal
Comparison of Methods in Estimating the Released Volume in a Tailings Dam Break Analysis
Creators: name: Huamanyauri, Jeymy
name: Huanchi, Jhoel
name: Hinostroza, Jose
name: Huamán, Miguel
Publisher: name: The University of British Columbia
Year: 2023

description: An important variable in a tailings dam break analysis (TDBA) is the released volume, which can underestimate or overestimate the impacts to people or the environment. In general, the volume released is directly related to the width of the dam. The impact footprint is related to the peak discharge flow and the arrival time of the tailings. Two types of methods can be used to estimate the volume released: statistical and geometric methods. Statistical methods are based on the historical records of the volume stored in the tailings deposits and later released; while geometric methods are conditioned by the angle of final disposal after the dam break. This paper presents the analysis of the volumes of released tailings, as estimated from the two previously indicated methods, in order to understand and discuss the advantages and disadvantages of these methods in the TDBA.
Exploring the relationship between road traffic noise, air quality and hypertension
Creators: name: Adza, Wisdom Kwesi
Publisher: name: Zenodo
Year: 2024

description: Background: There is evidence that exposure to the air pollution and noise from transportation is associated with risk of hypertension. Most studies have, however, only looked at relationships between single exposures and hypertension.Objective: To examine the combined association of outside air pollution and road noise with risk of hypertension.Methods: Using a cross-sectional design, information from the Scottish National Health Survey (2020) involving 33932 adults was linked. The survey assessed information on hypertension using the self-reporting of doctor diagnosed hypertension to a separate information from the NHS Scotland database of 776,579 hypertension patients’ registrations and rates per 13.80 people at the GP practice levels. Based on geospatial attributes, data on residential areas were added by modelling annual average air pollutant concentrations, including particulate matter (PM10 andPM2.5), nitrogen dioxide (NO2), and road-traffic noise at different frequency components (Lden)(23 November 2020–23 November 2021). The relationships between exposure to road noise, air pollution, and hypertension were examined using multiple regression and multivariate analysis.Results: Traffic noise and air pollution at various frequency components were associated with both registered hypertension cases and hypertension rates. Based on the canonical loading technique, the variance explained by the canonical independent variable at a canonical correlation of 0.342 is 89%. There was a significant correlation between joint air pollution and noise at different frequency components and combined registered hypertension cases and hypertension rate. Based on Moran I autocorrelation, geographically close values of a variable on a map typically had comparable values when there is a positive spatial autocorrelation. This means clustering on the map was influenced significantly by NO2, PM10 and PM2.5, and Lden at most monitoring locations. Hypertension was significantly associated with PM10, PM2.5 and NO2 and Lden at all monitoring location. Conclusion: Studies that only consider one of the two related exposures (outside air pollution and road noise) may exaggerate the impact of the individual exposure while underestimating the combined impact of the two environmental exposures.
Recycling universe
Creators: name: Garriga, Jaume
name: Vilenkin, Alexander
Publisher: name: arXiv
Year: 1997
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: If the effective cosmological constant is non-zero, our observable universe may enter a stage of exponential expansion. In such case, regions of it may tunnel back to the false vacuum of an inflaton scalar field, and inflation with a high expansion rate may resume in those regions. An ``ideal'' eternal observer would then witness an infinite succession of cycles from false vacuum to true, and back. Within each cycle, the entire history of a hot universe would be replayed. If there were several minima of the inflaton potential, our ideal observer would visit each one of these minima with a frequency which depends on the shape of the potential. We generalize the formalism of stochastic inflation to analyze the global structure of the universe when this `recycling' process is taken into account.
description: 43 pages, 10 figures
Additional file 1: of Outbreak investigation of lead neurotoxicity in children from artificial jewelry cottage industry
Creators: name: Akhil Goel
name: Chowgule, Rohini
Publisher: name: figshare
Year: 2019
Subjects: subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Dataset (DOCX 14 kb)
Experimental artifact for the "Sequence-RTG: Efficient and Production-Ready Pattern Mining in System Log Messages" article
Creators: name: Suter, Frederic
name: Harding, Louise
name: Wernli, Fabien
Publisher: name: figshare
Year: 2021
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: 80109 Pattern Recognition and Data Mining

description: To ensure the reproduction and further investigation of the presented code and results, this experimental artifact comprises a copy of the data and notebooks used in the accuracy testing of Sequence-RTG. It includes a folder containing original data from LogParse, in the event this
changes from time of writing. It also contains, for each service, two JSON files, i.e. pre-processed data and full log text, and Jupyter notebooks that show how we built these files, and a a CSV file for each service to map Sequence-RTG pattern-ids to the corresponding labels in the original data-set.
Carduus silvarum R. E. Fr.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Carduus
Carduus silvarum

description: Carduus silvarum R.E.Fr.  —
Habit:Herb.
Habitat:LMWF, LMDF, BZ; 1 600–2 600 m.Distribution:IIIb.
 Voucher: Kaburia Track, Alt. 2 165 m, 10 Aug. 2015, SAJIT 003917 (HIB).
References: Beentje (2000), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 91, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Negative results for Nikodym maximal functions and related oscillatory integrals in curved space
Creators: name: Minicozzi, William
name: Sogge, Christopher D.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42

description: We expand on counterxamples of Bourgain showing how Nikodym maximal estimates and oscillatory integral estimates can break down in the non-Euclidean case. Our examples show the role that the non-existence of totally geodesic submanifolds can play in these problems.
Tent City: An Analysis Of Honolulu’s Homelessness
Creators: Febuary, Aaron John
Publisher: name: Columbia University
Year: 2016
Subjects: subject: Rural homeless persons
subject: Quality of life
subject: Homelessness--Government policy
subject: City planning
subject: Sociology
subject: FOS: Sociology

description: This thesis examines the displacement of homeless and houseless individuals and families in Honolulu County Hawaii through the examination of rural and urban environments. The purpose of this study is to compare rural and urban homelessness with the goal of identifying whether and why homeless individuals in rural environments are better established than those in urban ones. What types of policies benefit the homeless in these areas and how can city policies and officials work collectively with those suffering from homeless in the urban core without allowing them to infringe on the basic rights of the general public? This study used qualitative data collected in both rural and urban homeless environments. After numerous surveys and interviews, the researcher found that: safety, partnerships with supporting agencies and access to shelter play the largest roles in the quality of life for the homeless.
Cineraria deltoidea Sond.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Cineraria
Cineraria deltoidea

description: Cineraria deltoidea Sond.  —
Habit: Herb.
Habitat: LMWF, LMDF, BZ, UMF, HZ, NZ, AZ; 1 800–4 100 m. Distribution: II.
 Voucher: Timau Track,Alt. 3 421 m, 21 Jan. 2015, SAJIT 002778 (HIB).
 References: Young & Peacock (1985), Blundell (1987), Bussmann (1993, 1994, 2006), Bussmann & Beck (1995a, 1998, 1999), Beentje et al. (2005), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 91, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Border Collision Bifurcations in Two Dimensional Piecewise Smooth Maps
Creators: name: Banerjee, Soumitro
name: Grebogi, Celso
Publisher: name: arXiv
Year: 1998
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Recent investigations on the bifurcations in switching circuits have shown that many atypical bifurcations can occur in piecewise smooth maps which can not be classified among the generic cases like saddle-node, pitchfork or Hopf bifurcations occurring in smooth maps. In this paper we first present experimental results to establish the need for the development of a theoretical framework and classification of the bifurcations resulting from border collision. We then present a systematic analysis of such bifurcations by deriving a normal form --- the piecewise linear approximation in the neighborhood of the border. We show that there can be eleven qualitatively different types of border collision bifurcations depending on the parameters of the normal form, and these are classified under six cases. We present a partitioning of the parameter space of the normal form showing the regions where different types of bifurcations occur. This theoretical framework will help in explaining bifurcations in all systems which can be represented by two dimensional piecewise smooth maps.
description: Revised version of earlier submission. 11 pages. Gnuzipped postscript including figures. To be published in Physical Review E, 1 April 1999