cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lagrangian Markovianized Field Approximation for turbulence
Creators: name: Bos, Wouter
name: Bertoglio, Jean-Pierre
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: In a previous communication (W.J.T. Bos and J.-P. Bertoglio 2006, Phys. Fluids, 18, 031706), a self-consistent Markovian triadic closure was presented. The detailed derivation of this closure is given here, relating it to the Direct Interaction Approximation and Quasi-Normal types of closure. The time-scale needed to obtain a self-consistent closure for both the energy spectrum and the scalar variance spectrum is determined by evaluating the correlation between the velocity and an advected displacement vector-field. The relation between this latter correlation and the velocity-scalar correlation is stressed, suggesting a simplified model of the latter. The resulting closed equations are numerically integrated and results for the energy spectrum, scalar fluctuation spectrum and velocity-displacement correlation spectrum are presented for low, unity and high values of the Schmidt number.
Die Rolle der atypischen Protein Kinase C Isoformen PKC[lambda]/[iota] und PKC[zeta] in Podozyten
Creators: name: Worthmann, Kirstin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Podocytes
subject: actin cytoskeleton
subject: Podozyten
subject: aPKC
subject: Aktin Zytoskelett
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Ensayo Amparo en Revisión 245/2022 Derecho de petición
Creators: name: Nieto Olvera, Pedro David
Publisher: name: Zenodo
Year: 2023
Subjects: Amparo
derecho de petición
DDHH
Twitter
SCJN

description: El problema jurídico que abordó la Primera Sala de la Suprema Corte de Justicia de la Nación a través del amparo en revisión 245/2022[1], consistió en determinar si las peticiones ciudadanas formuladas a partir de la plataforma digital "Twitter", se encuentran cubiertas por el "derecho de petición" protegido por el artículo 8º de la Constitución Política de los Estados Unidos Mexicanos, aún y cuando la autoridad a que se dirigen no haya habilitado legalmente dicha posibilidad. Por lo que el objeto del presente ensayo consistirá en realizar un examen sobre las características y la metodología utilizada por la Primera Sala donde concluyó que, en el caso en específico, las peticiones sí se encuentran bajo la protección del artículo 8º de la Constitución, revocando así la sentencia recurrida y concediendo el amparo y protección de la justicia Federal al quejoso.
 
[1] Amparo en Revisión 245/2022, SCJN, Primera Sala, Sesionado el 01/02/2023, Ponente: Jorge Mario Pardo Rebolledo, https://www2.scjn.gob.mx/ConsultaTematica/PaginasPub/DetallePub.aspx?AsuntoID=297584
Cohomology of the de Rham complex twisted by the oscillatory representation
Creators: name: Krýsl, Svatopluk
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics
subject: 53D99, 58A14

description: We introduce a Hilbert $A$-module structure on the higher oscillatory module, where $A$ denotes the $C^*$-algebra of bounded endomorphisms of the basic oscillatory module. We also define the notion of an exterior covariant derivative in an $A$-Hilbert bundle and use it for a construction of an $A$-elliptic complex of differential operators for certain symplectic manifolds equipped with a symplectic connection.
description: 10 pages, submitted to Differential Geometry and its Applications
Phyteuma betonicifolium Vill.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: Ph. betonicifolium Vill. Cat. 244 und 428. Bis 2700 m. l: Grammont (J.); Sex du Coeur (J.); Haut deMex (J.). - 2: Kummenalp ob Kippel (J.); Triest (Inneraletsch) (Marietan). - 3:ValFerret (Becherer und Thommen); Val de Bagnes (J., Pugsley); Mont-Chemin (Closuit); Alpen von Riddes (J.); Val des Dix (J.); Evolene (J.); Randa (Mercier); Visperterminen (J.); Bistinenpass (J.). - 3a: Gondoschlucht und Umgebung von Gondo (Becherer). - 4: Binntal, mehrfach (Binz). Var. typicum R. Schulz f. alpestre R. Schulz - 3: Ob Saleinaz (Val Ferret) (Melly). Var. lanceolatum R.Schulz - l: La Creuse ob Salvan (Coquoz). - 3:Val deBagnes (Charpentier); St-Luc (P.); Saastal: Grundberg (Hirschmann), FurggjebeiFee (idem). Var. sessiIifoUum A. DC. (Ph. scaposum R.Schulz, Ph. beton, var. scaposum Vaccari) - 3: Gr.St. Bernhard (Wagner, nach R.Schulz; ob Schweiz?); Meiden im Turtmanntal (Beauverd); Zermatt (Wagner, F.), hier bis 2700 m ob dem Schwarzsee gegen das Hörnli (Thellung 1919); Saastal (Reichenbach); Simplon (Vetter, Gandoger). - 4: Binntal, mehrfach (Binz). Eine var. helveticum Beauverd gibt BEAUVEKDvon Evolene, aus dem Turtmanntal und von Zermatt an.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Optical Spectroscopy of Tungsten Carbide for Uncertainty Analysis in Electron Electric Dipole Moment Search
Creators: name: Lee, J.
name: Chen, J.
name: Skripnikov, L. V.
name: Petrov, A. N.
name: Titov, A. V.
name: Mosyagin, N. S.
name: Leanhardt, A. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We perform laser induced fluorescence(LIF) spectroscopy on a pulsed supersonic beam of tungsten carbide(WC) molecules, which has been proposed as a candidate molecular system for a permanent Electric Dipole Moment(EDM) search of the electron in its rovibrational ground state of the X3Delta1 state. In particular, [20.6]Omega=2, v'=4
description: 13 pages, 10 figures
Interaktion von Mastzellen und natürlichen Killerzellen
Creators: name: Wüllner, Katja
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Mast cell
subject: natural killer cell
subject: lipopolysaccharide
subject: Mastzelle
subject: natürliche Killerzelle
subject: Lipopolysaccharid
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Topological monomorphisms between free paratopological groups
Creators: name: Lin, Fucai
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54C20, 54C25, 54D35, 54E15, 54H11

description: Suppose that $X$ is a subspace of a Tychonoff space $Y$. Then the embedding mapping $e_{X, Y}: X\rightarrow Y$ can be extended to a continuous monomorphism $\hat{e}_{X, Y}: AP(X)\rightarrow AP(Y)$, where $AP(X)$ and $AP(Y)$ are the free Abelian paratopological groups over $X$ and $Y$, respectively. In this paper, we mainly discuss when $\hat{e}_{X, Y}$ is a topological monomorphism, that is, when $\hat{e}_{X, Y}$ is a topological embedding of $AP(X)$ to $AP(Y)$.
description: 13 pages. arXiv admin note: substantial text overlap with arXiv:1302.4193
Untersuchungen zur Bioverfügbarkeit und antioxidativen Kapazität von Flavonoiden aus Rooiboszubereitungen nach einmaliger Applikation
Creators: name: Breiter, Till
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Rooibos tea
subject: flavonoids
subject: antioxidant capacity
subject: bioavailability
subject: Rooibostee
subject: Flavonoide
subject: antioxidative Kapazität
subject: Bioverfügbarkeit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
A Simple Problem of Ship Collision Avoidance
Creators: name: Perera, Lokukaluge Prasad
Publisher: name: Zenodo
Year: 2023
Subjects: Autonomy, Autonomous ship, Autopilot system, Shipcollision avoidance, Advanced predictor

description: There are various advanced algorithms developed to search for optimal solutions, i.e. optimal navigation trajectories, have been utilized for collision avoidance among ocean-going vessels by the research community. It is noted that such optimization solutions may not be a mandatory requirement in realistic ship encounter situations, due to the main reason that a slight change of course or speed conditions can completely eliminate possible close encounter situations among vessels. Furthermore, ocean-going vessels may not have the capabilities to satisfy all necessary conditions of such optimal navigation trajectories due to complex environmental conditions and ship under-actuation situations. Even though ship collision avoidance can be considered a simpler problem, the complexity comes from the collision risk estimation process. Therefore, this study further discusses the respective methodology that can be utilized towards detecting possible complex close ship encounter situations and their associated risk that may result in collision situations as the main contribution. Such a methodology based on ship relative motions in estimating the relative navigation trajectories among vessels should be adopted to facilitate the future of the shipping industry, especially under autonomous navigation.
Konzeption und Bedeutung der Markentradition : Bestandsaufnahme und empirische Analyse der Wirkung auf verhaltenswissenschaftliche Steuerungs- und Erfolgsgrößen der Markenführung
Creators: name: Wüstefeld, Thomas
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Brand heritage
subject: brand management
subject: empirical study
subject: Markentradition
subject: Markenmanagement
subject: empirische Untersuchung
subject: Dewey Decimal Classification::600 | Technik::650 | Management

description: [no abstract]
On Gaussian Half-Duplex Relay Networks
Creators: name: Cardone, Martina
name: Tuninetti, Daniela
name: Knopp, Raymond
name: Salim, Umer
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper considers Gaussian relay networks where a source transmits a message to a sink terminal with the help of one or more relay nodes. The relays work in half-duplex mode, in the sense that they can not transmit and receive at the same time. For the case of one relay, the generalized Degrees-of-Freedom is characterized first and then it is shown that capacity can be achieved to within a constant gap regardless of the actual value of the channel parameters. Different achievable schemes are presented with either deterministic or random switch for the relay node. It is shown that random switch in general achieves higher rates than deterministic switch. For the case of K relays, it is shown that the generalized Degrees-of-Freedom can be obtained by solving a linear program and that capacity can be achieved to within a constant gap of K/2log(4K). This gap may be further decreased by considering more structured networks such as, for example, the diamond network.
Identifizierung zelltypspezifischer Signale der Rezeptortyrosinkinasen c-Fms und TrkA anhand von Transkriptomanalysen in Epithelzellen
Creators: name: Breyer, Björn
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Receptor tyrosine kinases
subject: cell type specificity
subject: transcriptome analyses
subject: Rezeptortyrosinkinasen
subject: Zelltypspezifität
subject: Transkriptomanalysen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Two-channel Bose-Hubbard model of atoms at a Feshbach resonance
Creators: name: Schneider, Philipp-Immanuel
name: Saenz, Alejandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Based on the analytic model of Feshbach resonances in harmonic traps described in Phys. Rev. A 83, 030701 (2011) a Bose-Hubbard model is introduced that provides an accurate description of two atoms in an optical lattice at a Feshbach resonance with only a small number of Bloch bands. The approach circumvents the problem that the eigenenergies in the presence of a delta-like coupling do not converge to the correct energies, if an uncorrelated basis is used. The predictions of the Bose-Hubbard model are compared to non-perturbative calculations for both the stationary states and the time-dependent wavefunction during an acceleration of the lattice potential. For this purpose, a square-well interaction potential is introduced, which allows for a realistic description of Feshbach resonances within non-perturbative single-channel calculations.
description: 15 pages, 12 figures
Quantum Fluctuations and Long-Range Order in Molecular Magnets
Creators: name: Subedi, P.
name: Wen, Bo
name: Yeshurun, Y.
name: Sarachik, M. P.
name: Millis, A. J.
name: Kent, A. D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We review our studies of the effect of transverse fields on the susceptibility and magnetization of single crystals of the prototype single molecule magnet (SMM), Mn$_{12}$-acetate, and of a new high-symmetry variant, Mn$_{12}$-acetate-MeOH. SMM single crystals can exhibit long range ferromagnetic order associated with intermolecular dipole interactions. Transverse fields increase quantum spin fluctuation and quantum tunneling of the magnetization suppressing long range order. However, we have found that suppression of the Curie temperature by a transverse field in Mn$_{12}$-acetate is far more rapid than predicted by the Transverse-Field Ising Ferromagnetic Model (TFIFM). It appears that solvent disorder in Mn$_{12}$-acetate that results in an intrinsic distribution of small discrete tilts of the molecular magnetic easy axis from the global easy axis of the crystal ($\approx \pm 1^\circ$) gives rise to a distribution of random-fields that further suppresses long-range order. Semiquantitative agreement with the predictions of a Random-Field Ising Ferromagnet Model is found. Subsequent susceptibility studies we have conducted of the high symmetry Mn$_{12}$ variant, Mn$_{12}$-acetate-MeOH, with the same spin structure and similar lattice constants but without the same solvent disorder as Mn$_{12}$-acetate, agrees with the TFIFM. An important implication of our studies is that long-range order in these two chemically very similar SMMs are described by distinct physical models.
description: arXiv admin note: text overlap with arXiv:1202.4963
Phyteuma hemisphaericum
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: Ph. hemisphaericum X humiIe - 3: «Vispertäler» (Thomas, nach R. Schulz).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Hochtemperatur- und Mehrstufensynthesen mit miniaturisierten Durchflussreaktoren und Darstellung von Maleimid-funktionalisierten superparamagnetischen Nanopartikeln zur Anwendung in Wirkstoffkonjugaten
Creators: name: Hartwig, Jan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Microreactors
subject: nanoparticles
subject: magnetic induction
subject: multistep synthesis
subject: drug synthesis
subject: bromo methyl ketones
subject: high pressure/high temperature reactions
subject: synthesis in water
subject: drug conjugates
subject: computer assisted reaction control
subject: Mikroreaktoren
subject: Nanopartikel
subject: magnetische Induktion
subject: Mehrstufensynthese
subject: Wirkstoffsynthese
subject: Brommethylketone
subject: Hochdruck-/Hochtemperaturreaktionen
subject: Synthese in Wasser
subject: Wirkstoffkonjugate
subject: computergesteuerte Reaktionsführung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
RELATIVE EFFECTIVENESS OF MONETARY AND FISCAL POLICIES ON ECONOMIC GROWTH IN ETHIOPIA: VECTOR AUTOREGRESSION APPROACH
Creators: name: Teweldebrehan Tesfay
Publisher: name: Zenodo
Year: 2010

description: The study empirically investigates the relative effectiveness of fiscal and

monetary policies on economic growth in Ethiopia. With the objective of finding

out the relative strength of monetary and fiscal policies on economic growth, the

study used an unrestricted vector autoregressions (VARs) framework, based on

the St. Louis equation, to compute variance decompositions (VDCs) and impulse

response functions (IRFs). Neither government expenditure nor money supply

(M2) was found to be statistically significant in the co-integrating equations

estimated suggesting that the policy variables are neutral in the long run
Dielectric Fluid in Inhomogeneous Pulsed Electric Field
Creators: name: Shneider, M. N.
name: Pekker, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We consider the dynamics of a compressible fluid under the influence of electrostrictive ponderomotive forces in strong inhomogeneous nonstationary electric fields. It is shown that if the fronts of the voltage rise at a sharp, needle-like electrode are rather steep (less than or about nanoseconds), and the region of negative pressure arises, which can reach values at which the fluid loses its continuity with the formation of cavitation ruptures. If the voltage on the electrode is not large enough or the front is flatter, the cavitation in the liquid does not occur. However, a sudden shutdown of the field results in a reverse flow of liquid from the electrode, which leads to appearance of negative pressure, and, possibly, cavitation.
Dante's Divina Commedia: Spring Lecture 16 (Paradiso 11, 12)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 16 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded March 10, 2016. 0:00 – chiasmus and circularity; rhetoric of the Paradiso; overview of Paradiso 11-12 37:20 – Paradiso 11 1:08:17 – Paradiso 12
title: Utopia podmiotowości Jespera Juula
Creators: name: Zielka, Sylwester
Publisher: name: Instytut Pedagogiki Uniwersytetu Wrocławskiego
Year: 2017

description: Utopia kieruje się przekonaniem, że inny świat jest możliwy, że współczesność nie wyczerpuje ludzkiej potencji kreacji świata. Myślenie edukacyjne przepełnione jest ideami innego, alternatywnego społeczeństwa, choć wydaje się, że obecnie duch utopii znajduje się w odwrocie. Celem artykułu jest przybliżenie koncepcji pedagogicznej duńskiego pedagoga i terapeuty Jespera Juula, potraktowanej tu jako alternatywa dla współczesnych niedostatków edukacji. Juul proponuje interesującą i kompleksową wizję zmiany relacji międzyludzkich, będącą podstawą budowy nowych relacji społecznych. Projekt ten można potraktować jako utopijny, ponieważ zakłada, że budowanie wielowymiarowych relacji służących wszystkim (dzieciom, rodzicom, szkołom, społeczeństwom): 1) wiąże się z wykroczeniem poza obowiązujące schematy myślowe dotyczące wychowania i życia społecznego, gdzie ich podstawą stać się powinny kategorie odpowiedzialności i kompetencji; 2) wymaga radykalnej zmiany języka i sposobu jego używania w kierunku niewymuszonego dialogu; 3) powoduje konieczność przekształcenia szerszego kontekstu społeczno-ekonomicznego od nadzoru w stronę samodzielności myślenia.
Untersuchung der Expression verschiedener Fc[gamma]-Rezeptoren in glomerulären Mesangiumzellen der Maus sowie deren Funktion in vitro mit Hilfe von Fc[gamma]RIII-Defektmutanten
Creators: name: Sowa, Eveline
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Fcgamma receptors
subject: mesangial cells
subject: glomerulonephritis
subject: chemokines
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Inelastic collapse in one-dimensional driven systems under gravity
Creators: name: Wakou, Jun'ichi
name: Kitagishi, Hiroyuki
name: Sakaue, Takahiro
name: Nakanishi, Hiizu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the inelastic collapse in the one-dimensional $N$-particle systems in the situation where the system is driven from below under the gravity. We investigate the hard-sphere limit of the inelastic soft-sphere systems by numerical simulations to find how the collision rate per particle $n_{coll}$ increases as a function of the elastic constant of the sphere $k$ when the restitution coefficient $e$ is kept constant. For the systems with large enough $N \agt 20$, we find three regimes in $e$ depending on the behavior of $n_{coll}$ in the hard-sphere limit: (i) uncollapsing regime for $1 \ge e > e_{c1}$, where $n_{coll}$ converges to a finite value, (ii) logarithmically collapsing regime for $e_{c1} > e > e_{c2}$, where $n_{coll}$ diverges as $n_{coll} \sim \log k$, and (iii) power-law collapsing regime for $e_{c2} > e > 0$, where $n_{coll}$ diverges as $n_{coll} \sim k^α$ with an exponent $α$ that depends on $N$. The power-law collapsing regime shrinks as $N$ decreases and seems not to exist for the system with N=3 while, for large $N$, the size of the uncollapsing and the logarithmically collapsing regime decreases as $e_{c1} \simeq 1-2.6/N$ and $e_{c2} \simeq 1-3.0/N$. We demonstrate that this difference between large and small systems exists already in the inelastic collapse without the external drive and the gravity.
description: 12 pages, 12 figures
Einfluss der Temperaturverteilung auf das tribologische Verhalten von Synchronisierungen
Creators: name: Spreckels, Marcus
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Synchroniser
subject: temperature distribution
subject: tribological performance
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
Interacting epidemics and coinfection on contact networks
Creators: name: Newman, M. E. J.
name: Ferrario, C. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The spread of certain diseases can be promoted, in some cases substantially, by prior infection with another disease. One example is that of HIV, whose immunosuppressant effects significantly increase the chances of infection with other pathogens. Such coinfection processes, when combined with nontrivial structure in the contact networks over which diseases spread, can lead to complex patterns of epidemiological behavior. Here we consider a mathematical model of two diseases spreading through a single population, where infection with one disease is dependent on prior infection with the other. We solve exactly for the sizes of the outbreaks of both diseases in the limit of large population size, along with the complete phase diagram of the system. Among other things, we use our model to demonstrate how diseases can be controlled not only by reducing the rate of their spread, but also by reducing the spread of other infections upon which they depend.
description: 9 pages, 3 figures
Spin Induced Optical Conductivity in the Spin Liquid Candidate Herbertsmithite
Creators: name: Pilon, Daniel V.
name: Lui, Chun Hung
name: Han, Tianheng
name: Shrekenhamer, David B.
name: Frenzel, Alex J.
name: Padilla, William J.
name: Lee, Young S.
name: Gedik, Nuh
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A quantum spin liquid (QSL) is a state of matter in which magnetic spins interact strongly, but quantum fluctuations inhibit long-range magnetic order even at zero temperature. A QSL has been predicted to have a host of exotic properties, including fractionalized excitations and long-range quantum entanglement. Despite the numerous theoretical studies, experimental realization of a QSL has proved to be challenging due to the lack of candidate materials. The triangular organic salts EtMe3Sb[Pd(dmit)2]2 and κ-(BEDT-TTF)2Cu2(CN)3, and kagome ZnCu3(OH)6Cl2 (Herbertsmithite) have recently emerged as promising candidates of exhibiting a QSL state, but the nature of their ground states is still elusive. Here we studied a large-area high-quality single crystal of Herbertsmithite by means of time-domain terahertz (THz) spectroscopy. We observed in the low-frequency (0.6-2.2 THz) optical conductivity evidence for the nature of the spin system. In particular, the in-plane absorption spectrum exhibits a unique frequency dependence that can be described by a power-law with an exponent of approximately 1.4, in sharp contrast with the ω^4 dependence expected for an ordered Mott insulator. The absorption is also found to increase as the temperature decreases, a behavior unexpected for conventional insulators. Such features are consistent with recent theory based on the interactions between the charge and spin degrees of freedom in a QSL system.
description: 9 pages, 6 figures (supplementary information included)
Phyteuma hemisphaericum X Scheuchzeri
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: Ph. hemisphaericum X Scheuchzeri Cat. 245. Zu streichenderBastard.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
He I D3 Observation of the 1984 May 22 M6.3 Solar Flare
Creators: name: Liu, Chang
name: Xu, Yan
name: Deng, Na
name: Lee, Jeongwoo
name: Zhang, Jifeng
name: Choudhary, Debi Prasad
name: Wang, Haimin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: He I D3 line has a unique response to the flare impact on the low solar atmosphere and can be a powerful diagnostic tool for energy transport processes. Using images obtained from the recently digitized films of Big Bear Solar Observatory, we report D3 observation of the M6.3 flare on 1984 May 22, which occurred in an active region with a circular magnetic polarity inversion line (PIL). The impulsive phase of the flare starts with a main elongated source that darkens in D3, inside of which bright emission kernels appear at the time of the initial small peak in hard X-rays (HXRs). These flare cores subsequently evolve into a sharp emission strand lying within the dark halo simultaneously with the main peak in HXRs, reversing the overall source contrast from -5% to 5%. The radiated energy in D3 during the main peak is estimated to be about 10^30 ergs, which is comparable to that carried by nonthermal electrons above 20 keV. Afterwards the flare proceeds along the circular PIL in the counterclockwise direction to form a dark circular ribbon in D3, which apparently mirrors the bright ribbons in Halpha and He I 10830 A. All these ribbons last for over one hour in the late gradual phase. We suggest that the present event resembles the so-called black-light flare that is proposed based on continuum images, and that D3 darkening and brightening features herein may be due to, respectively, the thermal conduction heating and the direct precipitation of high-energy electrons.
description: 8 pages, 6 figures, accepted to the Astrophysical Journal
Charakterisierung verschiedener Rußtypen durch systematische statische Gasadsorption : energetische Heterogenität und Fraktalität der Partikeloberfläche
Creators: name: Schröder, Andreas
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Carbon black
subject: surface activity
subject: reinforcement
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Dante's Divina Commedia: Spring Lecture 15 (Paradiso 8, 9, 10)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 15 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded March 8, 2016. 0:00 – Paradiso 8 23:52 – Paradiso 9 52:35 – Paradiso 10
Gauge Coupling Unification and Non-Equilibrium Thermal Dark Matter
Creators: name: Mambrini, Yann
name: Olive, Keith A.
name: Quevillon, Jeremie
name: Zaldivar, Bryan
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study a new mechanism for the production of dark matter in the universe which does not rely on thermal equilibrium. Dark matter is populated from the thermal bath subsequent to inflationary reheating via a massive mediator whose mass is above the reheating scale, T_R. To this end, we consider models with an extra U(1) gauge symmetry broken at some intermediate scale M, of the order of 10^10 -- 10^12 GeV. We show that not only does the model allow for gauge coupling unification (at a higher scale associated with grand unification) but can naturally provide a dark matter candidate which is a Standard Model singlet but charged under the extra U(1). The intermediate scale gauge boson(s) which are predicted in several E6/SO(10) constructions can be a natural mediator between dark matter and the thermal bath. We show that the dark matter abundance, while never having achieved thermal equilibrium, is fixed shortly after the reheating epoch by the relation T_R^3/M^4. As a consequence, we show that the unification of gauge couplings which determines M also fixes the reheating temperature T_R, which can be as high as 10^11 GeV.
description: 4 pages, 2 figures, 1 table
Constraint equations for general hypersurfaces and applications to shells
Creators: name: Mars, Marc
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Hypersurfaces of arbitrary causal character embedded in a spacetime are studied with the aim of extracting necessary and sufficient free data on the submanifold suitable for reconstructing the spacetime metric and its first derivative along the hypersurface. The constraint equations for hypersurfaces of arbitrary causal character are then computed explicitly in terms of this hypersurface data, thus providing a framework capable of unifying, and extending, the standard constraint equations in the spacelike and in the characteristic cases to the general situation. This may have interesting applications in well-posedness problems more general than those already treated in the literature. As a simple application of the constraint equations for general hypersurfaces, we derive the field equations for shells of matter when no restriction whatsoever on the causal character of the shell is imposed.
description: 34 pages, no figures
title: Aktualisierte Risikobewertung zu Gehalten an 1,2-ungesättigten Pyrrolizidinalkaloiden (PA) in Lebensmitteln: Stellungnahme Nr. 020/2018 des BfR vom 14. Juni 2018
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2018
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2018, no. 020
Strukturelle und funktionelle Untersuchungen am Transkriptionsfaktor c-Myb und seinem Kofaktor Rcd1+
Creators: name: Schürmann, André
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: c-Myb
subject: Rcd1+
subject: protein-protein-interaction
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Mechanismen der Regulation eukaryontischer Transkriptionsfaktoren am Beispiel von DevR and AnCF von Aspergillus nidulans
Creators: name: Tüncher, André
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Aspergillus nidulans
subject: DevR
subject: AnCF complex
subject: transcription factors
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Genetische und phänotypische Variabilität von Helicobacter pylori während der Infektion und nach natürlicher Transmission
Creators: name: Schwarz, Sandra
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: Helicobacter pylori
subject: Übertragung
subject: Adhärenz
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
title: Francisella-tularensis-Infektionen durch Lebensmittel unwahrscheinlich: Stellungnahme Nr. 021/2018 des BfR vom 18. Juni 2018
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2018
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2018, no. 021
Campanula barbata L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. barbata L. Cat. 245 und 428. Ssp. eu-barbata Hirschmann (C. barb. L. s. str.) Var. genuina Hirschmann subvar. ramosissima (Chenev.) (C. barb. var. ramosa Vaccari) - 3: Boveyre ob Bourg-St-Pierre (Melly); Valsorey (Guyot); La Pierraz am Gr. St. Bernhard (idem); Saastal (Hirschmann). Var. pusilla (Gaudin) (C.barb. var. uniflora A. DC.) - 3: Arpette (Melly); Saastal (A.Keller, Hirschmann). Ssp. stricto-pedunculata (Rchb.) Hirschmann (C. stricto-pedunculata E.Thomas ex Rchb., C.barb. var. stricto-pedunculata Rchb.) - l: Luisin (Oberson). - 3: La Pierraz am Gr. St.Bernhard (Melly); Barneusa-Lirecim Val de Zinal (Marietan); ob Grächen (H. und M. Itten); Findelenbei Zermatt (Heinis); Saastal (A.Keller, Becherer, Hirschmann). - 3a: Hohsaas südlich Simplon- Dorf (Becherer und Arnold). - 4: Eginental (F.). Var. normalis Hirschmann subvar. ramigera Hirschmann und subvar. parviflora Hirschmann. - 3: Saastal (Hirschmann). Var. monanthos Hirschmann (C. barb. var. pusilla subf. erecta Vaccari) - Desgleichen.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Über den Transfer von natürlichen Radionukliden in terrestrischen Ökosystemen und die realistische Modellierung der natürlichen Strahlenexposition in Norddeutschland
Creators: name: Vahlbruch, Jan-Willem
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Radiation exposure
subject: natural radionuclides
subject: transfer
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen

description: [no abstract]
Stochasticity effects in quantum radiation reaction
Creators: name: Neitz, N.
name: Di Piazza, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: When an ultrarelativistic electron beam collides with a sufficiently intense laser pulse, radiation-reaction effects can strongly alter the beam dynamics. In the realm of classical electrodynamics, radiation reaction has a beneficial effect on the electron beam as it tends to reduce its energy spread. Here, we show that when quantum effects become important, radiation reaction induces the opposite effect, i.e., the electron beam spreads out after interacting with the laser pulse. We identify the physical origin of this opposite tendency in the intrinsic stochasticity of photon emission, which becomes substantial in the full quantum regime. Our numerical simulations indicated that the predicted effects of the stochasticity can be measured already with presently available lasers and electron accelerators.
description: 5 pages, 2 figures
The Importance of Establishing Baselines in ML Classification Tasks
Creators: name: D'hooge, Laurens
name: Wauters, Tim
name: Volckaert, Bruno
name: De Turck, Filip
Publisher: name: Zenodo
Year: 2022

description: Machine learning is finding its way into more and more application domains, often reaching outstanding results. However, most of its premier results have been achieved in vision and language tasks. The new methods which power those results are then eagerly adopted in a broader set of research fields to solve other tasks, typically with other types of data. This demonstration will show that the blind adoption of computationally expensive methods has caused more harm than good in my research field, (network / host) intrusion detection and in the application of data science in cybersecurity tasks more broadly. Foregoing establishing proper baselines with simple methods has deluded many researchers into hailing their methods as improvements over the state-of-the-art, when in fact they are not. This demo is targeted at researchers who are applying ML to any task with structured input data.
Der Isenherger Münzfund, von Cornelius Reistorff, Leipzig 1866
Creators: name: Wuerst, August
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Der Isenherger Münzfund, verzeichnet von Cornelius Reistorff, mit 163 Abbildungen. Leipzig. Hahn’sche Verlags-Handlung 1866. 8. 52 S. mit 9 Tafeln. Von Kreissecretär Würst, Ilauptmann a. D.
description: Bonner Jahrbücher, Bd. 43 (1867): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
Diskussionsbeiträge, Teil 2 / Discussion, Part 2
Creators: name: Redaktion, Die
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2017

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 62 (2016): ICOMOS – Hefte des Deutschen Nationalkomitees
Dante's Divina Commedia: Spring Lecture 14 (Paradiso 7 , 8)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 14 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded March 3, 2016. 0:00 – Paradiso 7 43:48 – overview of upcoming canti 51:40 – Paradiso 8
Extraction of $α_s$ from deep inelastic scattering at large $x$
Creators: name: Courtoy, A.
name: Liuti, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present an analysis of the role of the running coupling constant at the intersection of perturbative and nonperturbative QCD. Although the approaches that have been considered so far in these two regimes appear to be complementary to each other, a unified description might derive through the definition of the effective coupling, as they both provide ways of analyzing its freezing at low values of the scale. We extract the effective coupling from all available experimental data on the unpolarized structure function of the proton, $F_2^p$, at large values of Bjorken $x$, including the resonance region. We suggest that parton-hadron duality observed in this region can be explained if nonperturbative effects are included in the coupling constant. The outcome of our analysis is a smooth transition from perturbative to nonperturbative QCD physics, embodied in the running of the coupling constant at intermediate scales.
description: 11pages, 5 figures, aps bibliography style
APOSTLE: Longterm Transit Monitoring and Stability Analysis of XO-2b
Creators: name: Kundurthy, Praveen
name: Barnes, Rory
name: Becker, Andrew C.
name: Agol, Eric
name: Williams, Benjamin F.
name: Gorelick, Noel
name: Rose, Amy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Apache Point Survey of Transit Lightcurves of Exoplanets (APOSTLE) observed 10 transits of XO-2b over a period of three years. We present measurements which confirm previous estimates of system parameters like the normalized semi-major axis (a/R_{*}), stellar density (ρ_{*}), impact parameter (b) and orbital inclination (i_{orb}). Our errors on system parameters like a/R_{*} and ρ_{*} have improved by ~40% compared to previous best ground-based measurements. Our study of the transit times show no evidence for transit timing variations and we are able to rule out co-planar companions with masses \ge 0.20 \mearth\ in low order mean motion resonance with XO-2b. We also explored the stability of the XO-2 system given various orbital configurations of a hypothetical planet near the 2:1 mean motion resonance. We find that a wide range of orbits (including Earth-mass perturbers) are both dynamically stable and produce observable TTVs. We find that up to 51% of our stable simulations show TTVs that are smaller than the typical transit timing errors (~20 sec) measured for XO-2b, and hence remain undetectable.
description: 33 pages, 6 figures, 9 tables (submitted to ApJ, Apr 21 2013). arXiv admin note: text overlap with arXiv:1211.6828
Annäherungen an die Industrielle Kulturlandschaft Ruhrgebiet. Prozesse und Strukturen - Zonen, Achsen und Systeme
Creators: name: Wehling, Hans-Werner
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2017

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 62 (2016): ICOMOS – Hefte des Deutschen Nationalkomitees
Struktur des KCNJ14-Gens und funktionelle Bedeutung der Kir2.4-Kanaluntereinheit beim Menschen und bei der Maus
Creators: name: Töpert, Christoph
Publisher: name: Hannover : Universität
Year: 2004
Subjects: subject: Kir2.4
subject: inwardly rectifying potassium channel
subject: KCNJ14
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
Virtuelle und abstrahierende Rekonstruktion archäologischer Landschaften: Der Mittelberg bei Nebra
Creators: name: Pfaff, Bettina
Publisher: name: ICOMOS – Hefte des Deutschen Nationalkomitees
Year: 2017

description: ICOMOS – Hefte des Deutschen Nationalkomitees, Bd. 61 (2016): ICOMOS – Hefte des Deutschen Nationalkomitees
Dante's Divina Commedia: Spring Lecture 13 (Paradiso 6, 7)
Creators: name: Barolini, Teodolinda
Publisher: name: Columbia University
Year: 2016
Subjects: Italian literature

description: Spring Lecture 13 of the course "Dante's Divina Commedia" taught by Teodolinda Barolini, Lorenzo da Ponte Professor of Italian at Columbia University. This iteration of her year-long Dante course was taught in two-hour, twice-weekly sessions during Fall 2015 and Spring 2016 (Dante’s Divina Commedia, Italian W4091 & W4092). Recorded March 1, 2016. 0:00 – Paradiso 6 56:26 – Paradiso 7
From geometry to invertibility preservers
Creators: name: Havlicek, Hans
name: Šemrl, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: Algebraic Geometry (math.AG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47B49, 15A04

description: We characterize bijections on matrix spaces (operator algebras) preserving full rank (invertibility) of differences of matrix (operator) pairs in both directions.
Coexistence in an inhomogeneous environment
Creators: name: Weisman, Shlomit
name: Kessler, David A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We examine the two-dimensional extension of the model of Kessler and Sander of competition between two species identical except for dispersion rates. In this class of models, the spatial inhomogeneity of reproduction rates gives rise to an implicit cost of dispersal, due to the tendency to leave favorable locations. Then, as in the Hamilton-May model with its explicit dispersal cost, the tradeoff between dispersal case and the beneficial role of dispersal in limiting fluctuations, leads to an advantage of one dispersal rate over another, and the eventual extinction of the disadvantaged species. In two dimensions we find that while the competition leads to the elimination of one species at high and low population density, at intermediate densities the two species can coexist essentially indefinitely. This is a new phenomenon not present in either the one-dimensional form of the Kessler-Sander model nor in the totally connected Hamilton-May model, and points to the importance of geometry in the question of dispersal.
Perturbations of Kantowski-Sachs models
Creators: name: Bradley, Michael
name: Forsberg, Mats
name: Keresztes, Zoltán
name: Gergely, László Á.
name: Dunsby, Peter K. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Perturbations of Kantowski-Sachs models with a positive cosmological constant are considered in a harmonic decomposition, in the framework of gauge invariant 1+3 and 1+1+2 covariant splits of spacetime. Scalar, vector and tensor modes are allowed, however they remain vorticity-free and of perfect fluid type. The dynamics is encompassed in six evolution equations for six harmonic coefficients.
description: 3 pages, to be published in the Proceedings of the Thirteenth Marcel Grossmann Meeting, Stockholm, Sweden 2012
Hardware Impairments in Large-scale MISO Systems: Energy Efficiency, Estimation, and Capacity Limits
Creators: name: Björnson, Emil
name: Hoydis, Jakob
name: Kountouris, Marios
name: Debbah, Mérouane
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The use of large-scale antenna arrays has the potential to bring substantial improvements in energy efficiency and/or spectral efficiency to future wireless systems, due to the greatly improved spatial beamforming resolution. Recent asymptotic results show that by increasing the number of antennas one can achieve a large array gain and at the same time naturally decorrelate the user channels; thus, the available energy can be focused very accurately at the intended destinations without causing much inter-user interference. Since these results rely on asymptotics, it is important to investigate whether the conventional system models are still reasonable in the asymptotic regimes. This paper analyzes the fundamental limits of large-scale multiple-input single-output (MISO) communication systems using a generalized system model that accounts for transceiver hardware impairments. As opposed to the case of ideal hardware, we show that these practical impairments create finite ceilings on the estimation accuracy and capacity of large-scale MISO systems. Surprisingly, the performance is only limited by the hardware at the single-antenna user terminal, while the impact of impairments at the large-scale array vanishes asymptotically. Furthermore, we show that an arbitrarily high energy efficiency can be achieved by reducing the power while increasing the number of antennas.
description: Published at International Conference on Digital Signal Processing (DSP 2013), 6 pages, 5 figures
Kirchliche Kunst in Aachen (1830—1930). Eine Ausstellung im Suermondt-Museum (Mai-August 1975)
Creators: name: Grimme, Ernst Günther
Publisher: name: Aachener Kunstblätter
Year: 2017

description: -
description: Aachener Kunstblätter, Bd. 46 (1975): Aachener Kunstblätter