cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lies, Lothar: Origenes' Eucharistielehre im Streit der Konfesionen
Creators: name: Rücker, Heribert
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 35 Nr. 4 (1986): Ökumenische Rundschau, Band 35, Heft 4
The Hierarchical Chinese Postman Problem: the slightest disorder makes it hard, yet disconnectedness is manageable
Creators: name: Afanasev, Vsevolod A.
name: van Bevern, René
name: Tsidulko, Oxana Yu.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Discrete Mathematics (cs.DM)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: F.2.2
subject: 90C35

description: The Hierarchical Chinese Postman Problem is finding a shortest traversal of all edges of a graph respecting precedence constraints given by a partial order on classes of edges. We show that the special case with connected classes is NP-hard even on orders decomposable into a chain and an incomparable class. For the case with linearly ordered (possibly disconnected) classes, we get 5/3-approximations and fixed-parameter algorithms by transferring results from the Rural Postman Problem.
description: Fixed Figure 4 and an argument in the proof of Lemma 3.7(iii)
Three-dimensional imaging of colloidal glasses under steady shear
Creators: name: Besseling, R.
name: Weeks, Eric R.
name: Schofield, A. B.
name: Poon, W. C. K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Using fast confocal microscopy we image the three-dimensional dynamics of particles in a yielded hard-sphere colloidal glass under steady shear. The structural relaxation, observed in regions with uniform shear, is nearly isotropic but is distinctly different from that of quiescent metastable colloidal fluids. The inverse relaxation time $τ_α^{-1}$ and diffusion constant $D$, as functions of the {\it local} shear rate $\dotγ$, show marked shear thinning with $τ_α^{-1} \propto D \propto \dotγ^{0.8}$ over more than two decades in $\dotγ$. In contrast, the {\it global} rheology of the system displays Herschel-Bulkley behavior. We discuss the possible role of large scale shear localization and other mechanisms in generating this difference.
description: 4 pages, 5 figures, to be published in PRL
NATHALIE BARRANDON - FRANÇOIS KIRBIHLER (dir.), Administrer les provinces de la République romaine, 2010; NATHALIE BARRANDON - FRANÇOIS KIRBIHLER (dir.), Les gouverneurs et les provinciaux sous la République romaine, 2011.
Creators: name: Masci, Giulia
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: Recensione

Nathalie Barrandon - François Kirbihler (dir.), Administrer les provinces de la République romaine, Presses Universitaires de Rennes, Rennes 2010, 218 pp., ISBN 9782753510173.

Nathalie Barrandon - François Kirbihler (dir.), Les gouverneurs et les provinciaux sous la République romaine, Presses Universitaires de Rennes, Rennes 2011, 304 pp., ISBN 9782753514201.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 2 (2011)
Alternation of Magnetic Anisotropy Accompanied by Metal-Insulator Transition in Strained Ultrathin Manganite Heterostructures
Creators: name: Kobayashi, Masaki
name: Anh, Le Duc
name: Suzuki, Masahiro
name: Kaneta-Takada, Shingo
name: Takeda, Yukiharu
name: Fujimori, Shin-ichi
name: Tanaka, Masaaki
name: Ohya, Shinobu
name: Fujimori, Atsushi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Fundamental understanding of interfacial magnetic properties in ferromagnetic heterostructures is essential to utilize ferromagnetic materials for spintronic device applications. In this paper, we investigate the interfacial magnetic and electronic structures of epitaxial single-crystalline LaAlO$_3$ (LAO)/La$_{0.6}$Sr$_{0.4}$MnO$_3$ (LSMO)/Nb:SrTiO$_3$ (Nb:STO) heterostructures with varying LSMO-layer thickness, in which the magnetic anisotropy strongly changes depending on the LSMO thickness due to the delicate balance between the strains originating from both the Nb:STO and LAO layers, using x-ray magnetic circular dichroism (XMCD) and photoemission spectroscopy (PES). We successfully detect the clear change of the magnetic behavior of the Mn ions concomitant with the thickness-dependent metal-insulator transition (MIT). Our results suggest that double-exchange interaction induces the ferromagnetism in the metallic LSMO film under tensile strain caused by the SrTiO$_3$ substrate, while superexchange interaction determines the magnetic behavior in the insulating LSMO film under compressive strain originating from the top LAO layer. Based on those findings, the formation of a magnetic dead layer near the LAO/LSMO interface is attributed to competition between the superexchange interaction via Mn 3$d_{3z^2-r^2}$ orbitals under compressive strain and the double-exchange interaction via the 3$d_{x^2-y^2}$ orbitals.
description: 20 pages, 6 figures
บุพปัจจัยของการต่อสัญญาของลูกค้าสัญญาบริหารจัดการควบคุม ดูแล และบำรุงรักษาอาคารในประเทศไทย
Creators: name: กิตติพงศ์ คงกะพันธ์
Publisher: name: คณะนิเทศศาสตร์ มหาวิทยาลัยราชภัฏรำไพพรรณี
Year: 2566
Subjects: ทฤษฎีการรักษาลูกค้า
การต่อสัญญา
ความเข้มแข็งของความสัมพันธ์
บุพปัจจัยของการต่อสัญญา

description: วารสารสหวิทยาการสังคมศาสตร์และการสื่อสาร, 6, 4, 236-245
Radiative Electroweak Symmetry Breaking Beyond Leading Logarithms
Creators: name: Elias, V.
name: Mann, R. B.
name: McKeon, D. G. C.
name: Steele, T. G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The top-quark Yukawa coupling is too large to permit radiative electroweak symmetry breaking to occur for small values of y, the Higgs self-coupling, to leading-logarithm order. However, a large y solution leading to a viable Higgs mass of approximately 220 GeV does exist, and differs from conventional symmetry breaking by an approximately five-fold enhancement of the Higgs self-coupling. This scenario for radiative symmetry breaking is reviewed, and the order-by-order perturbative stability of this scenario is studied within the scalar field theory projection of the standard model in which the Higgs self-coupling y represents the dominant standard-model coupling.
description: 5 pages, one eps figure embedded in manuscript. Write-up of talk given at Theory Canada I, June 2005, University of British Columbia
Hauschild, Wolf-Dieter, Nicolaisen, Carsten, Wendebourg, Dorothea: Kirchengemeinschaft - Anspruch und Wirklichkeit
Creators: name: Krüger, Hanfried
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 35 Nr. 4 (1986): Ökumenische Rundschau, Band 35, Heft 4
Transition from shear-dominated to Rayleigh-Taylor turbulence
Creators: name: Brizzolara, Stefano
name: Mollicone, Jean-Paul
name: van Reeuwijk, Maarten
name: Mazzino, Andrea
name: Holzner, Markus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Turbulent mixing layers in nature are often characterized by the presence of a mean shear and an unstable buoyancy gradient between two streams of different velocity. Depending on the relative strength of shear versus buoyancy, either the former or the latter may dominate the turbulence and mixing between the two streams. In this paper, we present a phenomenological theory that leads to the identification of two distinct turbulent regimes: an early regime, dominated by the mean shear, and a later regime dominated by the buoyancy. The main theoretical result consists of the identification of a cross-over time-scale that discerns between the shear- and the buoyancy-dominated turbulence. This cross-over time depends on three large-scale constants of the flow, namely the buoyancy difference, the velocity difference between the two streams, and the gravitational acceleration. We validate our theory against direct numerical simulations (DNSs) of a temporal turbulent mixing layer compounded with an unstable stratification. We observe that the cross-over time correctly predicts the transition from shear to buoyancy driven turbulence, in terms of turbulent kinetic energy production, energy spectra scaling and mixing layer thickness.
Una nuova iscrizione monumentale dagli scavi di piazza Madonna di Loreto
Creators: name: Egidi, Roberto
name: Orlandi, Silvia
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: The archaeological excavations in Piazza Madonna di Loreto, due to the  construction of the new metro line in Rome, led to the discovery of a  group of buildings dating from the reign of Hadrian, probably to be  identified with the Athenaeum. In one of these, transformed during the  Middle Ages into a workshop for melting metals, was found a new fragment  of marble with monumental letters, belonging to an imperial inscription  already known since a long time (CIL, VI 966 = 31215). The new fragment  confirms the reconstruction of the epigraphic text, but the traditional  interpretation as dedication of the temple of Trajan and his wife  Plotina is possibly to be revised.

Gli scavi per la costruzione della nuova linea della metropolitana di Roma in Piazza Madonna di Loreto, hanno portato alla scoperta di un complesso di ambienti di età adrianea forse identificabile con l’Athenaeum. In uno di questi ambienti, trasformato in epoca medievale in officina per la fusione dei metalli, è stato rinvenuto un nuovo frammento di iscrizione monumentale, verosimilmente proveniente dal vicino Foro di Traiano, che appartiene a un’epigrafe già nota da tempo (CIL, VI 966= 31215). L’integrazione del testo ne esce confermata, ma la sua tradizionale interpretazione come dedica del tempio di Traiano e Plotina è forse da rivedere.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 1 (2011)
Implementation of a real time simulator for protective relay testing
Creators: name: Calviño-Fraga, Jesús
Publisher: name: University of British Columbia
Year: 2009

description: Details on the implementation of the Real-Time simulator for protective relay tester on an off-the-shelf hardware platform are presented. This simulator is a particular implementation of the OVNI simulator (Object Virtual Network Integrator) being developed at the Power System Simulation Laboratory of the University of British Columbia. This report includes the details on the implementation of fast and accurate models for current and coupling-capacitor voltage transformers. Also described are the details on the implementation of accurate timing and other operating system related issues. The user interface program, as well as details on the hardware/software implementation of the simulator are also presented.
Entanglement of Two Distinguishable Atoms in a Rectangular Waveguide: Linear Approximation with Single Excitation
Creators: name: Li, Jing
name: Hu, Lijuan
name: Lu, Jing
name: Zhou, Lan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider two two-level systems (TLSs) coupled to the vacuum of guided modes confined in a rectangular waveguide. Two TLSs are fixed at different points in the waveguide and initially share an excitation. For the energy separation of the TLSs far away from the cutoff frequencies of transverse modes, two coupled delay-differential equations are obtained for the probability amplitudes of the TLSs. The effects of the difference of TLSs' energy separations and the inter-TLS distance on the time evolution of the concurrence of the TLSs are examined.
description: 7 pages, 5 figures. arXiv admin note: text overlap with arXiv:1901.01795
Strain-induced Fermi contour anisotropy of GaAs 2D holes
Creators: name: Shabani, J.
name: Shayegan, M.
name: Winkler, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report measurements of magneto-resistance commensurability peaks, induced by a square array of anti-dots, in GaAs (311)A two-dimensional holes as a function of applied in-plane strain. The data directly probe the shapes of the Fermi contours of the two spin subbands that are split thanks to the spin-orbit interaction and strain. The experimental results are in quantitative agreement with the predictions of accurate energy band calculations, and reveal that the majority spin-subband has a severely distorted Fermi contour whose anisotropy can be tuned with strain.
description: Accepted for publication in Phys. Rev. Lett
The Atacama Large Aperture Submillimetre Telescope (AtLAST)
Creators: name: Klaassen, Pamela D.
name: Mroczkowski, Tony
name: Cicone, Claudia
name: Hatziminaoglou, Evanthia
name: Sartori, Sabrina
name: De Breuck, Carlos
name: Bryan, Sean
name: Dicker, Simon R.
name: Duran, Carlos
name: Groppi, Chris
name: Kärcher, Hans
name: Kawabe, Ryohei
name: Kohno, Kotaro
name: Geach, James
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The coldest and densest structures of gas and dust in the Universe have unique spectral signatures across the (sub-)millimetre bands ($ν\approx 30-950$~GHz). The current generation of single dish facilities has given a glimpse of the potential for discovery, while sub-mm interferometers have presented a high resolution view into the finer details of known targets or in small-area deep fields. However, significant advances in our understanding of such cold and dense structures are now hampered by the limited sensitivity and angular resolution of our sub-mm view of the Universe at larger scales. In this context, we present the case for a new transformational astronomical facility in the 2030s, the Atacama Large Aperture Submillimetre Telescope (AtLAST). AtLAST is a concept for a 50-m-class single dish telescope, with a high throughput provided by a 2~deg - diameter Field of View, located on a high, dry site in the Atacama with good atmospheric transmission up to $ν\sim 1$~THz, and fully powered by renewable energy. We envision AtLAST as a facility operated by an international partnership with a suite of instruments to deliver the transformative science that cannot be achieved with current or in-construction observatories. As an 50m-diameter telescope with a full complement of advanced instrumentation, including highly multiplexed high-resolution spectrometers, continuum cameras and integral field units, AtLAST will have mapping speeds hundreds of times greater than current or planned large aperture ($>$ 12m) facilities. By reaching confusion limits below L$_*$ in the distant Universe, resolving low-mass protostellar cores at the distance of the Galactic Centre, and directly mapping both the cold and the hot (the Sunyaev-Zeldovich effect) circumgalactic medium of galaxies, AtLAST will enable a fundamentally new understanding of the sub-mm Universe.
description: 20 pages, 5 figures, to be submitted to SPIE Astronomical telescopes & Instruments 2020, Ground-based and Airborne Telescopes VIII (conference 11445, abstract 290)
title:  Dalla penuria al Terrore. Relazioni e pratiche disumane nella Teoria degli insiemi pratici
Creators: name: Russo  ,  Maria
Publisher: name: Roma TrE-Press
Year: 2019

description: In questo contributo si intende analizzare la molteplicità dei processi di disumanizzazione che Sartre descrive nel primo volume della Critica della Ragione Dialettica (la Teoria degli Insiemi Pratici). Anzitutto, il filosofo francese si interroga intorno a quale tipo di sapere sia davvero in grado di considerare l’uomo nella sua dimensione più propriamente umana. Per Sartre, esso corrisponde a una rivisitazione esistenzialista del marxismo, che recupera analisi fenomenologiche e psicanalitiche dell’individuo. In secondo luogo, egli analizza i luoghi in cui concretamente emerge la disumanizzazione: la condizione contingente ma ineludibile della penuria, il rapporto che si instaura tra proprietario borghese e operaio nella contro-violenza dell’oppressione e dello sfruttamento e infine nella perversione del gruppo-in-fusione che, attraverso la Fraternità-Terrore, ricade in una nuova forma di serialità. Una possibile alternativa a queste dinamiche infernali, descritte nella Critica e in parte già accennate nelle opere precedenti, viene indicata nell’ultima discussa intervista, La speranza oggi, in una nuova forma di fraternità finalmente sganciata dal Terrore, una fraternità che è insieme relazione originaria e compito normativo per una compiuta realizzazione dell’umano.
description: Studi Sartriani – Anno XIII – L’umana disumanità
A small-signal GFET equivalent circuit considering an explicit contribution of contact resistances
Creators: name: Pacheco-Sanchez, Anibal
name: Ramos-Silva, Javier N.
name: Ramirez-Garcia, Eloy
name: Jiménez, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: A small-signal equivalent circuit for graphene field-effect transistors is proposed considering the explicit contribution of effects at the metal-graphene interfaces by means of contact resistances. A methodology to separate the contact resistances from intrinsic parameters, obtained by a de-embedding process, and extrinsic parameters of the circuit is considered. The experimental high-frequency performance of three devices from two different GFET technologies is properly described by the proposed small-signal circuit. Some model parameters scale with the device footprint. The correct detachment of contact resistances from the internal transistor enables to assess their impact on the intrinsic cutoff frequency of the studied devices.
Text: Vision for the community
Creators: name: Narvaez, Erika
name: Dabkowski, Maksymilian
name: Aguinda, Shen
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: con

description: Her preoccupations, her visions, how they created a tourist organization for it to be sustainable without damaging the environment. Basic amenities: potable water and plumbing so that there are no diseases.
Optical excitations in organic molecules, clusters and defects studied by first-principles Green's function methods
Creators: name: Tiago, Murilo L.
name: Chelikowsky, James R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Spectroscopic and optical properties of nanosystems and point defects are discussed within the framework of Green's function methods. We use an approach based on evaluating the self-energy in the so-called GW approximation and solving the Bethe-Salpeter equation in the space of single-particle transitions. Plasmon-pole models or numerical energy integration, which have been used in most of the previous GW calculations, are not used. Fourier transforms of the dielectric function are also avoided. This approach is applied to benzene, naphthalene, passivated silicon clusters (containing more than one hundred atoms), and the F center in LiCl. In the latter, excitonic effects and the $1s \to 2p$ defect line are identified in the energy-resolved dielectric function. We also compare optical spectra obtained by solving the Bethe-Salpeter equation and by using time-dependent density functional theory in the local, adiabatic approximation. From this comparison, we conclude that both methods give similar predictions for optical excitations in benzene and naphthalene, but they differ in the spectra of small silicon clusters. As cluster size increases, both methods predict very low cross section for photoabsorption in the optical and near ultra-violet ranges. For the larger clusters, the computed cross section shows a slow increase as function of photon frequency. Ionization potentials and electron affinities of molecules and clusters are also calculated.
description: 9 figures, 5 tables, to appear in Phys. Rev. B, 2006
Regularity of coupled two-dimensional nonlinear Fokker-Planck and Navier-Stokes systems
Creators: name: Constantin, Peter
name: Fefferman, Charles
name: Titi, Edriss
name: Zarnescu, Arghir
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q30, 82C31, 76A05

description: We consider systems of particles coupled with fluids. The particles are described by the evolution of their density, and the fluid is described by the Navier-Stokes equations. The particles add stress to the fluid and the fluid carries and deforms the particles. Because the particles perform rapid random motion, we assume that the density of particles is carried by a time average of the fluid velocity. The resulting coupled system is shown to have smooth solutions at all values of parameters, in two spatial dimensions.
High contrast and resolution 3-D ultrasonography with a clinical linear transducer array scanned in a rotate-translate geometry
Creators: name: Lucas, Théotim
name: Quidu, Isabelle
name: Bridal, S. Lori
name: Gateau, Jerome
Publisher: name: arXiv
Year: 2020
Subjects: subject: Medical Physics (physics.med-ph)
subject: Image and Video Processing (eess.IV)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose a novel solution for volumetric ultrasound imaging using single-side access 3-D synthetic-aperture scanning of a clinical linear array. This solution is based on an advanced scanning geometry and a software-based ultrasound platform. The rotate-translate scanning scheme increases the elevation angular aperture by pivoting the array [-45{\textdegree} to 45{\textdegree}] around its array axis (axis along the row of its elements) and then, scans the imaged object for each pivoted angle by translating the array perpendicularly to the rotation axis. A theoretical basis is presented so that the angular and translational scan sampling periods can be best adjusted for any linear transducer array. We experimentally implemented scanning with a 5-MHz array. In vitro characterization was performed with phantoms designed to test resolution and contrast. Spatial resolution assessed based on the full-width half-maximum of images from isolated microspheres was increased by a factor 3 along the translational direction from a simple translation scan of the array. Moreover, the resolution is uniform over a cross-sectional area of 4.5 cm 2. Angular sampling periods were optimized and tapered to decrease the scan duration while maintaining image contrast (contrast at the center of a 5 mm cyst on the order of-26 dB for 4{\textdegree} angular period and a scan duration of 10 s for a 9cm 3 volume). We demonstrate that superior 3-D US imaging can be obtained with a clinical array using our scanning strategy. This technique offers a promising and flexible alternative to development of costly matrix arrays toward the development of sensitive volumetric ultrasonography.
Bewertung der Prozess-Struktur-Eigenschaftsbeziehung von verbundgestrahlten Aluminiumwerkstoffen
Creators: name: Seitz, Michael
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: composite peening
mechanical surface treatments
particle embedding
process structure properties relationship

description: Das Verbundstrahlen stellt ein neu entwickeltes Verfahren auf Basis des Mikrostrahlens dar. Durch die Erweiterung einer Mikrostrahlanlage um eine Heizeinheit ist es möglich, keramische Strahlpartikel mehrere Mikrometer in ein Grundmaterial einzubringen. Die Eindringtiefe ist dabei von unterschiedlichen Prozessparametern, wie Materialpaarung, Temperatur, Strahldruck und Bearbeitungsanzahl abhängig. In der vorliegenden Arbeit wird der Zusammenhang zwischen den Prozessparametern, der sich ausbildenden Mikrostruktur und den daraus resultierenden Eigenschaften beschrieben. Mikroskopische Untersuchungen zeigen, dass sich durch das vielfache Auftreffen der Keramikpartikel eine Hügel-Tal-Struktur ausbildet. Weiterhin führt der mehrfache Aufprall zu einem Fragmentieren der Keramikpartikel. Diese werden vor allem in den Tälern der Oberflächenstruktur vorgefunden. Durch Prozesstemperaturen nahe dem Schmelzpunkt des Grundmaterials ist es möglich, die Fragmente der Keramikpartikel bis zu einer Tiefe von 40 μm in Aluminiumwerkstoffe einzubringen. Analytische Modelle aus den Bereichen des Strahlverschleißes und der Ballistik berechnen ähnliche Eindringtiefen. Detaillierte Untersuchungen der Mikrostruktur mittels Röntgendiffraktometrie (XRD) und Transmissionselektronenmikroskopie (TEM) zeigen, dass die ehemals mikrometergroßen Strahlpartikel bis hin zu nanoskaligen Partikeln zerbrechen. Weiterhin weisen die Partikel durch den massiven Aufprall eine erhebliche Defektdichte auf. Die quasi-statischen Eigenschaften werden nur geringfügig durch das Verbundstrahlen beeinflusst und sind nahezu unabhängig von den Prozessparametern. Die eingebrachten Partikel und die gesteigerte Rauheit der Oberfläche nach dem Verbundstrahlprozess führt bei Wechselbiegeversuchen zu einer geringfügigen Reduktion der Langzeitfestigkeit. Den größten Einfluss hat die verbundgestrahlte Oberfläche bei tribologischer Belastung. Die harte und raue Oberfläche erhöht den Reibungskoeffizient unter Schwing-Reib-Verschleiß, steigert aber den Widerstand gegen Abrasion erheblich.
Text: Community life
Creators: name: Narvaez, Erika
name: Dabkowski, Maksymilian
name: Aguinda, Shen
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: con

description: Chores to do around the house, how the community functions, meetings to organize solicitations, because in order to do something in the community, one first needs to obtain funds.
title:  Spontaneità e realtà umana in Sartre
Creators: name: Manca  ,  Danilo
Publisher: name: Roma TrE-Press
Year: 2019

description: L’articolo si occupa del modo in cui Sartre tenta di risolvere il paradosso della soggettività che appare parte del mondo, oggetto agito e al contempo sua fonte costituente e donatrice di senso. Si adotta come filo conduttore l’identificazione di spontaneità e coscienza proposta da Sartre ne La trascendenza. Nel primo paragrafo si discute il tentativo di Sartre di mostrare l’origine spontanea della fuoriuscita fenomenologica dall’atteggiamento naturale. Nel secondo paragrafo ci si sofferma sull’identificazione della coscienza trascendentale con una spontaneità impersonale e pre-umana. Infine, nel terzo si mostra come Sartre lasci prima cadere la distinzione fra soggettività trascendentale e realtà umana ne L’essere e il nulla per poi recuperarla in una chiave diversa in Critica della ragione dialettica attraverso le nozioni di spontaneità pratica ed esperienza critica.
description: Studi Sartriani – Anno XIII – L’umana disumanità
MIRACLES: atmospheric characterization of directly imaged planets and substellar companions at 4-5 $μ$m. II. Constraints on the mass and radius of the enshrouded planet PDS 70 b
Creators: name: Stolker, Tomas
name: Marleau, Gabriel-Dominique
name: Cugno, Gabriele
name: Mollière, Paul
name: Quanz, Sascha P.
name: Todorov, Kamen O.
name: Kühn, Jonas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The circumstellar disk of PDS 70 hosts two forming planets, which are actively accreting gas from their environment. In this work, we report the first detection of PDS 70 b in the Br$α$ and $M'$ filters with VLT/NACO, a tentative detection of PDS 70 c in Br$α$, and a reanalysis of archival NACO $L'$ and SPHERE $H23$ and $K12$ imaging data. The near side of the disk is also resolved with the Br$α$ and $M'$ filters, indicating that scattered light is non-negligible at these wavelengths. The spectral energy distribution of PDS 70 b is well described by blackbody emission, for which we constrain the photospheric temperature and photospheric radius to $T_\mathrm{eff}=1193 \pm 20$ K and $R=3.0 \pm 0.2$ $R_\mathrm{J}$. The relatively low bolometric luminosity, $\log(L/L_\odot) = -3.79 \pm 0.02$, in combination with the large radius, is not compatible with standard structure models of fully convective objects. With predictions from such models, and adopting a recent estimate of the accretion rate, we derive a planetary mass and radius in the range of $M_\mathrm{p}\approx 0.5-1.5$ $M_\mathrm{J}$ and $R_\mathrm{p}\approx 1-2.5$ $R_\mathrm{J}$, independently of the age and post-formation entropy of the planet. The blackbody emission, large photospheric radius, and the discrepancy between the photospheric and planetary radius suggests that infrared observations probe an extended, dusty environment around the planet, which obscures the view on its molecular composition. Finally, we derive a rough upper limit on the temperature and radius of potential excess emission from a circumplanetary disk, $T_\mathrm{eff}\lesssim256$ K and $R\lesssim245$ $R_\mathrm{J}$, but we do find weak evidence that the current data favors a model with a single blackbody component.
description: 19 pages, 7 figures, accepted for publication in A&A
Dark Energy: Vacuum Fluctuations, the Effective Phantom Phase, and Holography
Creators: name: Elizalde, Emilio
name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
name: Wang, Peng
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We aim at the construction of dark energy models without exotic matter but with a phantom-like equation of state (an effective phantom phase). The first model we consider is decaying vacuum cosmology where the fluctuations of the vacuum are taken into account. In this case, the phantom cosmology (with an effective, observational $ω$ being less than -1) emerges even for the case of a real dark energy with a physical equation of state parameter $ω$ larger than -1. The second proposal is a generalized holographic model, which is produced by the presence of an infrared cutoff. It also leads to an effective phantom phase, which is not a transient one as in the first model. However, we show that quantum effects are able to prevent its evolution towards a Big Rip singularity.
description: 13 pages, 2 figures, revtex4, version to appear in Physical Review D
A warped scalar portal to fermionic dark matter
Creators: name: Carmona, Adrian
name: Ruiz, Javier Castellano
name: Neubert, Matthias
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We argue that extensions of the SM with a warped extra dimension, together with a new $\mathbb{Z}_2$-odd scalar singlet, provide a natural explanation not only for the hierarchy problem but also for the nature of fermion bulk masses and the observed dark matter relic abundance. In particular, the Kaluza-Klein excitations of the new scalar particle, which is required to naturally obtain fermion bulk masses through Yukawa-like interactions, can be the leading portal to any fermion propagating into the bulk of the extra dimension and playing the role of dark matter. Moreover, such scalar excitations will necessarily mix with the Higgs boson, leading to modifications of the Higgs couplings and branching ratios, and allowing the Higgs to mediate the coannihilation of the fermionic dark matter. We study these effects and explore the viability of fermionic dark matter in the presence of these new heavy scalar mediators both in the usual freeze-out scenario and in the case where the freeze-out happens during an early period of matter domination.
description: 20 pages, two columns, 9 figures. v2: matches published version
The African Customs Union, Infant Industry Protection, and Self-Centred Development
Creators: name: Zongwe, Dunia Prince
name: Masumbe, Paul S.
Publisher: name: Walter Sisulu University
Year: 2021
Subjects: subject: 180117 International Trade Law
subject: FOS: Law
subject: 130203 Economics, Business and Management Curriculum and Pedagogy
subject: FOS: Educational sciences
subject: Law

description: The authors predict that the Continental Customs Union (CCU) will injure some infant industries in smaller Member States and that, if not properly designed, the small States which have wholeheartedly embraced the African Continental Free Trade Area (AfCFTA) Agreement may actually hold little. The AfCFTA Agreement alludes to the CCU but does not specifically provide for it. Moreover, the AfCFTA provisions on infant-industry protection (IIP) remain hopelessly vague. But, if the experience with the Southern African Customs Union (SACU) is anything to go by, the CCU will end up hurting some infant industries in the CCU territory. The authors’ prediction does not imply that AU Member States should not join the CCU. On the contrary, evidence from SACU shows that this customs union represents the largest source of income for most of its members. However, just like SACU, the CCU – a form of neoliberal economic integration – subverts self-centred development by stopping local industries from growing or emerging in the first place. Tentatively, this article recommends that customs unions Member States share skills, knowledge and technology if they want to avoid the moral hazard problem that IIP carries with it.
The NICER View of the 2020 Burst Storm and Persistent Emission of SGR 1935+2154
Creators: name: Younes, George
name: Guver, Tolga
name: Kouveliotou, Chryssa
name: Baring, Matthew G.
name: Hu, Chin-Ping
name: Wadiasingh, Zorawar
name: Begicarslan, Beste
name: Enoto, Teruaki
name: Gogus, Ersin
name: Lin, Lin
name: Harding, Alice K.
name: van der Horst, Alexander J.
name: Majid, Walid A.
name: Guillot, Sebastien
name: Malacaria, Christian
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on NICER observations of the Magnetar SGR~1935+2154, covering its 2020 burst storm and long-term persistent emission evolution up to $\sim90$ days post outburst. During the first 1120~seconds taken on April 28 00:40:58 UTC we detect over 217 bursts, corresponding to a burst rate of $>0.2$ bursts s$^{-1}$. Three hours later the rate is at 0.008 bursts s$^{-1}$, remaining at a comparatively low level thereafter. The $T_{90}$ burst duration distribution peaks at 840~ms; the distribution of waiting times to the next burst is fit with a log-normal with an average of 2.1 s. The 1-10 keV burst spectra are well fit by a blackbody, with an average temperature and area of $kT=1.7$ keV and $R^2=53$ km$^2$. The differential burst fluence distribution over $\sim3$ orders of magnitude is well modeled with a power-law form $dN/dF\propto F^{-1.5\pm0.1}$. The source persistent emission pulse profile is double-peaked hours after the burst storm. We find that the bursts peak arrival times follow a uniform distribution in pulse phase, though the fast radio burst associated with the source aligns in phase with the brighter peak. We measure the source spin-down from heavy-cadence observations covering days 21 to 39 post-outburst, $\dotν=-3.72(3)\times10^{-12}$ Hz s$^{-1}$; a factor 2.7 larger than the value measured after the 2014 outburst. Finally, the persistent emission flux and blackbody temperature decrease rapidly in the early stages of the outburst, reaching quiescence 40 days later, while the size of the emitting area remains unchanged.
description: Accepted for publication in the Astrophysical Journal Letters
title: Erklärbare KI im Bildungswesen: Konzeption eines Prüfrahmenwerks für die Erklärbarkeit von KI-Systemen
Creators: name: Kosar, Emre Selim
Year: 2025
Subjects: subject: 330 Wirtschaft

description: Die rapide Entwicklung von Künstlicher Intelligenz (KI) hat eine transformative Wirkung
auf zahlreiche Lebensaspekte, einschließlich des Bildungswesens. Die Integration von
KI-Technologien im Bildungskontext bietet vielfältige Möglichkeiten, Lehr- und Lernmethoden
effizienter zu gestalten. Um diese Potenziale jedoch voll auszuschöpfen und die
Technologie vertrauenswürdig einsetzen zu können, ist eine erklärbare Gestaltung der
KI-generierten Entscheidungsprozesse unerlässlich. Dennoch hat sich bisher kein Prüfrahmenwerk
etabliert, anhand dessen Auditoren mangelhafte Erklärbarkeit und hierbei
im Zusammenhang stehende potenzielle Risiken erkennen und an relevante Stakeholder
kommunizieren können.
Das Ziel in der vorliegenden Arbeit ist es, ein Rahmenwerk zur Prüfung der Erklärbarkeit
von KI-Systemen zu konzipieren und mit einem konkreten Anwendungsbeispiel
aus dem Bildungswesen zu veranschaulichen.
Hierfür bietet Kapitel drei dieser Arbeit zunächst ein einheitliches Verständnis der Erklärbarkeit
von KI-Systemen im Bildungswesen, indem es die Anwendungsgebiete, die
Notwendigkeit, die Zielgruppen und den Informationsgehalt sowie potenzielle Risiken
Erklärbarer KI im Bildungskontext analysiert.
In Kapitel 4 wird schließlich das Prüfrahmenwerk mit der direkten Demonstration der
Kriterien am Anwendungsbeispiel vorgestellt. Um ein umfassendes Prüfrahmenwerk zu
konzipieren, wurde die Literatur rund um Erklärbare KI untersucht und die Kriterien
extrahiert, die andere Autoren für die Bewertung von Erklärbarkeit vorgeschlagen oder
in ihrer Forschung verwendet haben. Das Prüfrahmenwerk wird hierfür in drei Dimensionen
unterteilt, um die Vorgehensweise zu strukturieren: Die soziale, sozio-technische
und technische Dimension. Das Werk kann als Leitfaden oder Orientierungshilfe zur
Prüfung der Erklärbarkeit von KI-Systemen dienen und leistet einen Beitrag zur Etablierung
verantwortungsvoller KI-Nutzung, die den Bedürfnissen und Erwartungen der Gesellschaft
gerecht wird.
Atene e la ‘sua’ Delo Concordia politica e identità territoriale in età ellenistica
Creators: name: Cuniberti, Gianluca
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: In questo contributo la ricerca è volta ad indagare le reciproche relazioni fra Atene e Delo alla luce delle tensioni alla concordia e dell'esigenza di rimarcare i caratteri territoriali della polis in età ellenistica: è infatti in questo periodo che, in primo luogo e per la prima volta, si rende urgente per le poleis, e tra di esse anche e soprattutto per Atene, la definizione della propria identità, anzitutto territoriale, all'interno di un contesto politico interstatale che, per contrasto, vede definitivamente pregiudicata la possibilità di autodeterminazione di ogni singola polis. Si segue così l’intrecciarsi delle vicende dell’isola sacra ad Apollo e della polis attica secondo uno schema che continua nel periodo ellenistico, quando la storia di Delo, tra indipendenza e annessione, si articola intorno ad episodi nei quali le questioni di fondo sono sempre il tema dell'autonomia da Atene, quale condizione per l’affermazione di una specifica identità territoriale e sociale dell’isola, ma anche le ragioni dell’espansione di Atene, che, pur nella nuova posizione subordinata a Roma, ha bisogno di Delo per garantire il proprio sviluppo economico, ma anche per avere un indispensabile specchio su cui riflettere e amplificare le proprie relazioni estere. Si dimostra così che Atene, solo con il possesso dell’isola, poteva pensare di guadagnare e confermare un'identità territoriale che si estendeva dall'Attica alle isole, in una prospettiva panionica culturalmente indispensabile per la mentalità e la storia di Atene.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 2 (2011)
Fano resonance in two-dimensional optical waveguide arrays with a bi-modal defect
Creators: name: Vicencio, Rodrigo A.
name: Gorbach, Andrey V.
name: Flach, Sergej
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the two-dimensional extension of the Fano-Anderson model on the basis of a two-dimensional optical waveguide array with a bi-modal defect. We demonstrate numerically the persistence of the Fano resonance in wavepacket scattering process by the defect. An analytical approximation is derived for the total scattered light power.
N. BERNARD, Donne e società nell’antica Grecia, 2011
Creators: name: Bianco, Elisabetta
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: Recensione

N. Bernard, Donne e società nell’antica Grecia, Carocci, Roma 2011, ISBN 9788843060092.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 2 (2011)
M. CASELLA, Storie di ordinaria corruzione. Libanio, Orazioni LVI, LVII, XLIX. Introduzione, Traduzione e Commento storico, 2010
Creators: name: Pellizzari, Andrea
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: Recensione

M. Casella, Storie di ordinaria corruzione. Libanio, Orazioni LVI, LVII, XLIX. Introduzione, Traduzione e Commento storico, Di.Sc.A.M., Messina 2010 (Pelorias 19), pp. 378.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 2 (2011)
Greinacher, Norbert, Küng, Hans: Katholische Kirche - wohin?
Creators: name: Kantzenbach, Friedrich Wilhelm
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 35 Nr. 4 (1986): Ökumenische Rundschau, Band 35, Heft 4
D. GRANINGER, Cult and Koinon in Hellenistic Thessaly, 2011
Creators: name: Saba, Sara
Publisher: name: Università degli Studi di Torino - Dipartimento di Studi Storici
Year: 2012

description: Recensione

D. Graninger, Cult and Koinon in Hellenistic Thessaly, Brill, Leiden-Boston 2011, ISBN 9789004207103.
description: HISTORIKA Studi di storia greca e romana, Vol 1, N° 2 (2011)
Investigation of biases in Doppler centroid estimation algorithms
Creators: name: Zhang, Tonghua
Publisher: name: University of British Columbia
Year: 2009

description: Synthetic Aperture Radar (SAR) is a microwave imaging system capable of producing high-resolution imagery from data collected by a relatively small antenna. The Doppler centroid is an important parameter in the SAR signal processing. In principle, it is possible to calculate the Doppler centroid from orbit and attitude data. But the measurement uncertainties on these parameters will limit the accuracy of the estimation. Alternatively, the Doppler centroid can be estimated from the received data. In the past a few years, a number of Doppler centroid estimation algorithms have been developed. These algorithms can be categorized as one of two kinds. The first kind of algorithm utilizes the signal amplitude. The second kind of algorithm utilizes the phase of the received signal, such as the DLR algorithm, the MLCC and the MLBF algorithms. It is assumed that the estimation algorithms based on the signal phase can obtain more accurate estimates. The objective of this research is to examine and test the performance of the phased-based Doppler estimation algorithms with different scene contrasts, SNR levels and different squint angles, and examine the sensitivity of some phase-based Doppler estimation algorithms to radiometric discontinuities to find out how the radiometric discontinuities affect these estimation algorithms. First, the signal model is carefully examined. The effect of range sampling is discussed. The three candidate algorithms, the DLR, MLCC and MLBF, are introduced. Mathematical analysis of the ACCC angle and the contrast model are performed to obtain a insight of the operation of these algorithms. Experiments on simulated data with different scene contrast and SNR level are performed to compare the performance of these candidate algorithms. The MLCC algorithm works well with the ERS and J-ERS data, which normally have a low squint. However, it does not work reliably with the RADARSAT data. Since the RADARSAT data has a higher squint, simulations are performed to examine the effect of squint on the DLR, the MLCC and the MLBF algorithms. Radiometric discontinuity has significant effect on the estimate of the phasedbased algorithms. This thesis proposed a theory on the mechanism of how the radiometric discontinuity affects these algorithms in different ways. This thesis also proposed that, the MLBF is not affected by the radiometric discontinuity, the DLR algorithm is more sensitive to the azimuth discontinuity than the MLCC algorithm, whereas the M LCC algorithm is more sensitive to the range discontinuity than the DLR algorithm. These theories are proven by simulations and real data experiments.
Josephson Effect in a Coulomb-blockaded SINIS Junction
Creators: name: Ostrovsky, P. M.
name: Feigel'man, M. V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The problem of Josephson current through Coulomb-blocked nanoscale superconductor-normal-superconductor structure with tunnel contacts is reconsidered. Two different contributions to the phase-biased supercurrent are identified, which are dominant in the limits of weak and strong Coulomb interaction. Full expression for the free energy valid at arbitrary Coulomb strength is found. The current derived from this free energy interpolates between known results for weak and strong Coulomb interaction as phase bias changes from 0 to pi. In the broad range of Coulomb strength the current-phase relation is substantially non-sinusoidal and qualitatively different from the case of semi-ballistic SNS junctions. Coulomb interaction leads to appearance of a local minimum in the current at some intermediate value of phase difference applied to the junction.
description: 5 pages, 2 EPS figures, JETP Letters style file included
Fractons from a liquid of singlet pairs
Creators: name: Xavier, Hernan B.
name: Pereira, Rodrigo G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Fracton phases of matter feature a variety of exciting phenomena stemming from the restricted mobility of their quasiparticles. Here we consider a model of interacting electrons in one dimension that describes hopping of spin-singlet pairs and obeys both charge and dipole conservation laws. The model contains Bethe ansatz integrable sectors which allow us to solve the ground state and calculate the exact spin and single-electron excitation gaps. We observe hallmarks of fractonic behavior, including localization of single-electron excitations and propensity to clustering. Our results demonstrate the important role of the dipole moment conservation law in a simple model of spin-1/2 fermions.
description: 16 pages, 16 figures