cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kepler planets: a tale of evaporation
Creators: name: Owen, James E.
name: Wu, Yanqin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: (Abridged) Inspired by the Kepler planet discoveries, we consider the thermal contraction of planets close to their parent star, under the influence of evaporation. The mass-loss rates are based on hydrodynamic models of evaporation that include both X-ray and EUV irradiation. We find that only low-mass planets with hydrogen envelopes are significantly affected by evaporation, with evaporation being able to remove massive hydrogen envelopes inward of 0.1 AU for Neptune-mass objects. We construct a theoretical population of planets with varying core masses, envelope masses, orbital separations, and stellar spectral types, and compare these against the sizes and densities measured for low-mass planets, both in the Kepler mission and from radial velocity surveys. This exercise leads us to conclude that evaporation is the driving force of evolution for close-in Kepler planets. In fact, some 50% of the Kepler planet candidates may have been significantly eroded. Evaporation explains two striking correlations observed in these objects: a lack of large radius/low density planets close to the stars, and a bimodal distribution in planet sizes with a deficit of planets around 2R_E. Planets that have experienced high X-ray exposures are generally smaller than this size, and those with lower X-ray exposures are typically larger. A bimodal distribution is naturally explained by the evaporation model, where, depending on their X-ray exposure, close-in planets can either hold on to hydrogen envelopes 1% in mass, or be stripped entirely. To quantitatively reproduce the observed features, we argue that not only do low-mass Kepler planets need to be made of rocky cores overlaid with hydrogen envelopes, but few of them should have initial masses above 20 M_E, and the majority of them should have core masses of a few Earth masses.
description: 13 pages, Accepted for publication in ApJ
Testing spin-dependent dark matter interactions with lithium aluminate targets in CRESST-III
Creators: name: Angloher, G.
name: Banik, S.
name: Benato, G.
name: Bento, A.
name: Bertolini, A.
name: Breier, R.
name: Bucci, C.
name: Burkhart, J.
name: Canonica, L.
name: D'Addabbo, A.
name: Di Lorenzo, S.
name: Einfalt, L.
name: Erb, A.
name: Feilitzsch, F. v.
name: Iachellini, N. Ferreiro
name: Fichtinger, S.
name: Fuchs, D.
name: Fuss, A.
name: Garai, A.
name: Ghete, V. M.
name: Gerster, S.
name: Gorla, P.
name: Guillaumon, P. V.
name: Gupta, S.
name: Hauff, D.
name: Ješkovský, M.
name: Jochum, J.
name: Kaznacheeva, M.
name: Kinast, A.
name: Kluck, H.
name: Kraus, H.
name: Langenkämper, A.
name: Mancuso, M.
name: Marini, L.
name: Meyer, L.
name: Mokina, V.
name: Nilima, A.
name: Olmi, M.
name: Ortmann, T.
name: Pagliarone, C.
name: Pattavina, L.
name: Petricca, F.
name: Potzel, W.
name: Povinec, P.
name: Pröbst, F.
name: Pucci, F.
name: Reindl, F.
name: Rothe, J.
name: Schäffner, K.
name: Schieck, J.
name: Schmiedmayer, D.
name: Schönert, S.
name: Schwertner, C.
name: Stahlberg, M.
name: Stodolsky, L.
name: Strandhagen, C.
name: Strauss, R.
name: Usherov, I.
name: Wagner, F.
name: Willers, M.
name: Zema, V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the past decades, numerous experiments have emerged to unveil the nature of dark matter, one of the most discussed open questions in modern particle physics. Among them, the CRESST experiment, located at the Laboratori Nazionali del Gran Sasso, operates scintillating crystals as cryogenic phonon detectors. In this work, we present first results from the operation of two detector modules which both have 10.46 g LiAlO$_2$ targets in CRESST-III. The lithium contents in the crystal are $^6$Li, with an odd number of protons and neutrons, and $^7$Li, with an odd number of protons. By considering both isotopes of lithium and $^{27}$Al, we set the currently strongest cross section upper limits on spin-dependent interaction of dark matter with protons and neutrons for the mass region between 0.25 and 1.5 GeV/c$^2$.
description: 9 pages, 8 figures
Corporate Management in the Age of AI
Creators: name: Petrin, Martin
Publisher: name: Columbia University
Year: 2019
Subjects: Artificial intelligence
Industrial management
Artificial intelligence--Industrial applications
Corporation law
Executives

description: Recent media reports and press releases have created the impression that Artificial Intelligence (AI) is on the verge of assuming an important role in corporate management. While, upon closer inspection, it turns out that these stories should not always be taken at face value, they clearly highlight AI’s growing importance in management and hint at the enormous changes that corporate leadership may experience in the future. This Article attempts to anticipate that future by exploring a thought experiment on corporate management and AI. It argues that it is not an insurmountable step from AI generating and suggesting expert decisions (which is already common today) to AI making these decisions autonomously. The Article then proceeds based on the assumption that next-generation AI will be able to take over the management of business organizations and explores the corporate law and governance consequences of this development. In doing so, the Article focuses on the fundamental areas of corporate leadership and management structures, managerial liability, and the corporate purpose. It also considers the phenomenon of algorithmic entities and leaderless entities.
Fink, Gerhard: Langenscheidts Grundwortschatz Latein. Völl. Neubearb. 2001 von Linda Strehl
Creators: name: Wölke, Hansjörg
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Fink, Gerhard: Langenscheidts Grundwortschatz Latein. Völl. Neubearb. 2001 von Linda Strehl. Berlin [usw.]: Langenscheidt 2001.160 S. (ISBN 3-468-20201-6).
description: Forum Classicum, Nr. 2 (2001): Forum Classicum
title: „Die Stille schien mir unerträglich“
title: Übersetztes und Unübersetztes in Nava Ebrahimis Roman Sechzehn Wörter
titleType: Subtitle
Creators: name: Rabelhofer, Bettina
Publisher: name: Universität Graz
Year: 2020

description: Dossieronline,3(1),144-157
The 2-loop matter power spectrum and the IR-safe integrand
Creators: name: Carrasco, John Joseph M.
name: Foreman, Simon
name: Green, Daniel
name: Senatore, Leonardo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Large scale structure surveys are likely the next leading probe of cosmological information. It is therefore crucial to reliably predict their observables. The Effective Field Theory of Large Scale Structures (EFTofLSS) provides a manifestly convergent perturbation theory for the weakly non-linear regime, where dark matter correlation functions are computed in an expansion of the wavenumber k over the wavenumber associated to the non-linear scale knl. To push the predictions to higher wavenumbers, it is necessary to compute the 2-loop matter power spectrum. For equal-time correlators, exactly as with standard perturturbation theory, there are IR divergences present in each diagram that cancel completely in the final result. We develop a method by which all 2-loop diagrams are computed as one integral, with an integrand that is manifestly free of any IR divergences. This allows us to compute the 2-loop power spectra in a reliable way that is much less numerically challenging than standard techniques. We apply our method to scaling universes where the linear power spectrum is a single power law of k, and where IR divergences can particularly easily interfere with accurate evaluation of loop corrections if not handled carefully. We show that our results are independent of IR cutoff and, after renormalization, of the UV cutoff, and comment how the method presented here naturally generalizes to higher loops.
description: 27 pages, 7 figures; v2: JCAP published version; some typos corrected
Radial Profiles of Surface Density in Debris Discs
Creators: name: Rafikov, Roman R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Resolved observations of debris discs can be used to derive radial profiles of Azimuthally-averaged Surface Density (ASD), which carries important information about the disc structure even in presence of non-axisymmetric features and has improved signal-to-noise characteristics. We develop a (semi-)analytical formalism allowing one to relate ASD to the underlying semi-major axis and eccentricity distributions of the debris particles in a straightforward manner. This approach does not involve the distribution of particle apsidal angles, thus simplifying calculations. It is a much faster, more flexible and effective way of calculating ASD than the Monte Carlo sampling of orbital parameters of debris particles. We present explicit analytical results based on this technique for a number of particle eccentricity distributions, including two cases of particular practical importance: a prescribed radial profile of eccentricity, and the Rayleigh distribution of eccentricities. We then show how our framework can be applied to observations of debris discs and rings for retrieving either the semi-major axis distribution or (in some cases) the eccentricity distribution of debris, thus providing direct information about the architecture and dynamical processes operating in debris discs. Our approach also provides a fast and efficient way of forward modeling observations. Applications of this technique to other astrophysical systems, e.g. the nuclear stellar disc in M31 or tenuous planetary rings, are also discussed.
description: 16 pages, 13 figures, submitted to MNRAS, comments welcome
A simple proof that the $hp$-FEM does not suffer from the pollution effect for the constant-coefficient full-space Helmholtz equation
Creators: name: Spence, Euan A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In $d$ dimensions, approximating an arbitrary function oscillating with frequency $\lesssim k$ requires $\sim k^d$ degrees of freedom. A numerical method for solving the Helmholtz equation (with wavenumber $k$) suffers from the pollution effect if, as $k\to \infty$, the total number of degrees of freedom needed to maintain accuracy grows faster than this natural threshold. While the $h$-version of the finite element method (FEM) (where accuracy is increased by decreasing the meshwidth $h$ and keeping the polynomial degree $p$ fixed) suffers from the pollution effect, the celebrated papers [Melenk, Sauter 2010], [Melenk, Sauter 2011], [Esterhazy, Melenk 2012], and [Melenk, Parsania, Sauter 2013] showed that the $hp$-FEM (where accuracy is increased by decreasing the meshwidth $h$ and increasing the polynomial degree $p$) applied to a variety of constant-coefficient Helmholtz problems does not suffer from the pollution effect. The heart of the proofs of these results is a PDE result splitting the solution of the Helmholtz equation into "high" and "low" frequency components. In this expository paper we prove this splitting for the constant-coefficient Helmholtz equation in full space (i.e., in $\mathbb{R}^d$) using only integration by parts and elementary properties of the Fourier transform; this is in contrast to the proof for this set-up in [Melenk, Sauter 2010] which uses somewhat-involved bounds on Bessel and Hankel functions. The proof in this paper is motivated by the recent proof in [Lafontaine, Spence, Wunsch 2022] of this splitting for the variable-coefficient Helmholtz equation in full space; indeed, the proof in [Lafontaine, Spence, Wunsch 2022] uses more-sophisticated tools that reduce to the elementary ones above for constant coefficients.
Alternative entropies and consistent black hole thermodynamics
Creators: name: Nojiri, Shin'ichi
name: Odintsov, Sergei D.
name: Faraoni, Valerio
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: While the Bekenstein-Hawking entropy is the unique notion of entropy that makes classical black hole thermodynamics consistent, alternative entropy notions (Rényi, Tsallis, and generalized constructs) abound in the literature. We explore conditions under which they are part of a consistent horizon thermodynamics for certain classes of modified gravity black holes. We provide examples in which black hole masses and temperatures going hand-in-hand with these alternative entropies coincide with their usual counterparts associated with the Bekenstein-Hawking entropy.
description: 20 pages, LateX, to appear in Int. J. Geom. Meth. Mod. Phys
Ernst Bury: Latein durch die Hintertür. Der Formendetektiv
Creators: name: Weitz, Friedemann
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Ernst Bury: Latein durch die Hintertür. Der Formendetektiv. Lichtenau: AOL-Verlag 2001. 63 S. (3-89111-583-0).
description: Forum Classicum, Nr. 3 (2001): Forum Classicum
Making Disclosure Work for Start-Up Employees
Creators: name: Aran, Yifat
Publisher: name: Columbia University
Year: 2019
Subjects: New business enterprises
Stocks
New business enterprises--Finance
New business enterprises--Finance--Law and legislation
Disclosure of information

description: Equity-based compensation of startup employees is attracting growing and skeptical attention in academia and the media. Legal and finance scholars have raised concerns that employees are misinformed regarding the value of their equity grants in a manner that could distort their employment and investment decisions. This Article addresses these emerging concerns by articulating a theoretical and practical framework for the regulation of start-up employees’ human capital investments. This framework balances the confidentiality interests of employers with employees’ need for ongoing and realistic valuation of the return on their labor. Start-ups commonly rely on Rule 701 of the Securities Act to grant equity-based compensation to their employees without registering these securities with the Securities and Exchange Commission. This Article describes the flaws of the current regulation and proposes concrete amendments including (1) replacing the requirement to disclose the issuer’s financial statements with a requirement to disclose fair market valuation and exit waterfall analysis; (2) changing the threshold that triggers the enhanced disclosure requirement from when the company issues equity-based compensation exceeding $10 million within a twelve month period, to when the company issues securities to at least 100 employees, and these securities aggregately convey over 10% ownership in any class of shares; and (3) advancing the timing of the disclosure from its current post-employment stage to the offer letter stage.
Form fumbles function: Do university IR deposit forms deter data discovery?
Creators: name: Bennett, Terrence
name: Nicholson, Shawn
Publisher: name: Zenodo
Year: 2021

description: Just as every designer knows that form follows function, data professionals adhere to the dictum that documentation drives discovery. University based institutional repositories (IRs) continue to play an evolving and expanding role in the scholarly communication ecosystem, including the collection, organization, and dissemination of digital data objects. To remain relevant within this continuously evolving ecosystem, university IRs need to support a common language that advances data discovery--not only across academic institutions, but throughout the wider research data network. A first and crucial step in promoting this common language is the design of deposit forms and guidelines for the metadata that accompanies digital data deposit, which is essential for discovery, reuse, and interoperability. This presentation will report on the results of our exploration across a sample of US- and UK-based university IRs to analyze the required metadata elements for data deposit. Specifically, we examine IR deposit forms and guidelines to determine comparable fields as mapped against the Dublin Core schema, with a particular focus on how these guidelines support the requirements and expectations for data discovery within and across diverse academic disciplines. Case examples from different-sized institutions will illustrate variations in IR data deposit guidelines and point up issues associated with the need for human readable, domain specific data description. In addition to presenting our findings, we hope to engage attendees at this session in a broader discussion of the range of institutional approaches to addressing the inevitable conflicts (such as controlled vocabulary vs flexibility; comprehensive description vs ease of self-deposit; etc.) arising from the establishment of metadata requirements for data deposit.
A profissão de assistente social em Portugal
Creators: name: Branco, Francisco
Publisher: name: Locus Soci@l
Year: 2009

description: Ensaia-se neste artigo uma análise da profissão de assistente social em Portugal. Apresenta-se uma perspectiva histórica geral da evolução do Serviço Social como profissão no nosso país. Traça-se um perfil global atual desta profissão. Ensaia-se uma análise das suas principais características e do poder deste grupo, enquanto uma das profissões históricas do campo social. Seguindo a proposta de Weiss & Welbourn (2007), a análise ensaiada combina uma abordagem baseada nos «atributos» das profissões («attributes approach») e uma abordagem que concebe as profissões em termos de «poder» («power approach»). O principal objectivo deste artigo é, ao utilizar uma matriz idêntica à Weiss & Welbourn, subsidiar e potenciar a análise comparativa desta profissão, quer num plano mais geral de comparação internacional, quer no contexto específico da Europa do Sul em que o nosso país se integra (cross-national analysis)
description: Locus Soci@l, No 3 (2009)
Student-created physics problems as an independent and equitable assessment tool
Creators: name: Schumm, Bruce A.
name: Ishii, Joy
name: West, Colin G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Traditional high-stakes summative assessments--timed, in-class exams accounting for a large percentage of the term's overall grade--have often received criticism from the educational community. Such assessments tend to prize a particular "narrow bundle of skills", and have been shown in some contexts to produce disparate outcomes between different demographic groups. Alternative low-stakes assessments have shown potential to improve student engagement and close demographic gaps. In this paper, we document our use of an alternative form of assessment, in which students were asked to create and solve a problem of their own design.
description: Submitted to The Physics Teacher
Ready, set and no action: A static perspective on potential energy surfaces commonly used in gas-surface dynamics
Creators: name: Bukas, Vanessa Jane
name: Meyer, Jörg
name: Alducin, Maite
name: Reuter, Karsten
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In honoring the seminal contribution of Henry Eyring and Michael Polanyi who first introduced the concept of potential energy surfaces (PESs) to describe chemical reactions in gas-phase [Z. Phys. Chem. 12, 279-311, (1931)], this work comes to review and assess state-of-the-art approaches towards first-principle based modeling in the field of gas-surface dynamics. Within the Born-Oppenheimer and frozen surface approximations, the O2-Ag(100) interaction energetics are used as a showcase system to accentuate the complex landscape exhibited by the PESs employed to describe the impingement of diatomics on metal substrates and draw attention to the far-from-trivial task of continuously representing them within all six molecular degrees of freedom. To this end, the same set of ab initio reference data obtained within Density Functional Theory (DFT) are continuously represented by two different state-of-the-art high-dimensional approaches, namely the Corrugation-Reducing Procedure and Neural Networks. Exploiting the numerically undemanding nature of the resulting representations, a detailed static evaluation is performed on both PESs based on an extensive global minima search. The latter proved particularly illuminating in revealing representation deficiencies which affect the dynamical picture yet go otherwise unnoticed within the so-called "divide-and-conquer" approach.
description: 27 pages including 8 figures; related publications can be found at http://www.th4.ch.tum.de/index.php?id=167 [corrected typos, formulae, references, modified a few formulations based on added supporting material]
Probing an MeV-Scale Scalar Boson in Association with a TeV-Scale Top-Quark Partner at the LHC
Creators: name: Dutta, Bhaskar
name: Ghosh, Sumit
name: Gurrola, Alfredo
name: Julson, Dale
name: Kamon, Teruki
name: Kumar, Jason
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Searches for new low-mass matter and mediator particles have actively been pursued at fixed target experiments and at $e^+e^-$ colliders. It is challenging at the CERN LHC, but they have been searched for in Higgs boson decays and in $B$ meson decays by the ATLAS and CMS Collaborations, as well as in a low transverse momentum phenomena from forward scattering processes (e.g., FASER). We propose a search for a new scalar particle in association with a heavy vector-like quark. We consider the scenario in which the top quark ($t$) couples to a light scalar $ϕ^\prime$ and a heavy vector-like top quark $T$. We examine single and pair production of $T$ in $pp$ collisions, resulting in a final state with a top quark that decays purely hadronically, a $T$ which decays semileptonically ($T$ $\rightarrow$ $W$ + $b$ $\rightarrow$ $\ell$ $ν$ $b$), and a $ϕ^\prime$ that is very boosted and decays to a pair of collimated photons which can be identified as a merged photon system. The proposed search is expected to achieve a discovery reach with signal significance greater than 5$σ$ (3$σ$) for $m(T)$ as large as 1.8 (2) TeV and $m(ϕ^\prime)$ as small as 1 MeV, assuming an integrated luminosity of 3000 fb$^{-1}$. This search can expand the reach of $T$, and demonstrates that the LHC can probe low-mass, MeV-scale particles.
description: restructured and text added to clarify the results, results unchanged, matches the journal version
Three-dimensional numerical simulations of structured GRB jets
Creators: name: Urrutia, Gerardo
name: De Colle, Fabio
name: López-Cámara, Diego
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: After the detection of GRB 170817A, the first unambiguous off-axis gamma-ray burst (GRB), several studies tried to understand the structure of GRB jets. The initial jet structure (directly produced by the central engine) can be partially preserved, or can be completely modified by the interaction with the environment. In this study, we perform three-dimensional, special relativistic hydrodynamics simulations of long GRB jets evolving through a massive progenitor star. Different jet scenarios were considered: Top-hat, Gaussian jets dominated by pressure or by kinetic energy, as well as a model of a supernova (SN) plus a jet both propagating through the progenitor. We found that, while propagating inside the progenitor star, jets with different initial structures are nearly indistinguishable. Kinetic dominated jets are faster and more collimated than pressure dominated jets. The dynamics of jets inside the progenitor star strongly depends on the presence of an associated SN, which can substantially decelerate the jet propagation. We show that the initial structure of GRB jets is preserved, or not, mainly depending on the jet collimation. The initial structure is preserved in uncollimated jets, i.e. jets which move through low density environments. Meanwhile, jets which move through dense environments are shaped by the interaction with the medium and remain collimated.
description: 9 pages, 5 Figures; Added discussion; Accepted for publication in MNRAS
T. Wiedemann: Kaiser und Gladiatoren. Die Macht der Spiele im antiken Rom
Creators: name: Lobe, Michael
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: T. Wiedemann: Kaiser und Gladiatoren. Die Macht der Spiele im antiken Rom. Darmstadt: Primus 2001. 220 S. (ISBN 3-89678-196-0).
description: Forum Classicum, Nr. 4 (2001): Forum Classicum
Redactable Signature with Compactness from Set-Commitment
Creators: name: Tezuka, Masayuki
name: Tanaka, Keisuke
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Redactable signature allows anyone to remove parts of a signed message without invalidating the signature. The need to prove the validity of digital documents issued by governments is increasing. When governments disclose documents, they must remove private information concerning individuals. Redactable signature is useful for such a situation. However, in most redactable signature schemes, to remove parts of the signed message, we need pieces of information for each part we want to remove. If a signed message consists of l elements, the number of elements in an original signature is at least linear in l. As far as we know, in some redactable signature schemes, the number of elements in an original signature is constant, regardless of the number of elements in a message to be signed. However, these constructions have drawbacks in that the use of the random oracle model or generic group model. In this paper, we construct an efficient redactable signature to overcome these drawbacks. Our redactable signature is obtained by combining set-commitment proposed in the recent work by Fuchsbauer et al. (JoC 2019) and digital signatures.
Johannes Hahn/Meinolf Vielberg (Hgg.), Formen und Funktionen von Leitbildern
Creators: name: Schmitz, Dietmar
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Johannes Hahn/Meinolf Vielberg (Hgg.), Formen und Funktionen von Leitbildern. Altertumswissenschaftliches Kolloquium 17. Stuttgart: Franz Steiner Verlag 2007, 321 S., (ISBN 978- 3-515-08998-2)
description: Forum Classicum, Nr. 2 (2008): Forum Classicum
An Economic Perspective on Balancing Unquantified Harms and Benefits Under the Consumer Welfare Standard
Creators: name: Aron, Debra
name: Tenn, Steven
Publisher: name: Columbia University
Year: 2019
Subjects: Consumer protection
Antitrust law
Economics
Consolidation and merger of corporations
Prices

description: Judge Ginsburg’s address on how to balance unquantified benefits and harms under the consumer welfare standard highlights two distinct roles for qualitative assessment. The first is the role of qualitative evidence in antitrust analyses. The second is the consideration of both price and non-price effects. While these two topics are related—e.g., analysis of non-price competitive effects often relies on qualitative evidence—they raise distinct issues. We provide an economic perspective on these topics as a complement to Judge Ginsburg’s learned legal commentary. Specifically, we explain the central role that sound qualitative evidence traditionally and properly plays in the economic analysis of both price and non-price effects of mergers and accused conduct. We also discuss the state of economic analysis when a broad economic interpretation of the consumer welfare standard would require balancing the welfare of one group against another.
title: Γεωγραφικά συστήματα πληροφοριών και εφαρμογές τους στο σχεδιασμό συστημάτων ηλεκτρικής ενέργειας
Creators: name: Ρούτσης Δημήτριος
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
Towards the determination of the gluon helicity distribution in the nucleon from lattice quantum chromodynamics
Creators: name: Egerer, Colin
name: Joó, Bálint
name: Karpie, Joseph
name: Karthik, Nikhil
name: Khan, Tanjib
name: Monahan, Christopher J.
name: Morris, Wayne
name: Orginos, Kostas
name: Radyushkin, Anatoly
name: Richards, David G.
name: Romero, Eloy
name: Sufian, Raza Sabbir
name: Zafeiropoulos, Savvas
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present the first exploratory lattice quantum chromodynamics (QCD) calculation of the polarized gluon Ioffe-time pseudo-distribution in the nucleon. The Ioffe-time pseudo-distribution provides a frame-independent and gauge-invariant framework to determine the gluon helicity in the nucleon from first principles. We employ a high-statistics computation using a $32^3\times 64$ lattice ensemble characterized by a $358$ MeV pion mass and a $0.094$ fm lattice spacing. We establish the pseudo-distribution approach as a feasible method to address the proton spin puzzle with successive improvements in statistical and systematic uncertainties anticipated in the future. Within the statistical precision of our data, we find a good comparison between the lattice determined polarized gluon Ioffe-time distribution and the corresponding expectations from the state-of-the-art global analyses. We find a hint for a nonzero gluon spin contribution to the proton spin from the model-independent extraction of the gluon helicity pseudo-distribution over a range of Ioffe-time, $ν\lesssim 9$.
description: Version to be published in Phys. Rev. D, 24 pages, 13 figures
About the creation of proton-anti-proton pair at electron-positron collider in the energy range of the mass $Ψ(3770)$
Creators: name: Ahmadov, A. I.
name: Bystritskiy, Yu. M.
name: Kuraev, E. A.
name: Wang, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The process of electron--positron annihilation into proton--antiproton pair is considered within the vicinity of $ψ(3770)$ resonance. The interference between the pure electromagnetic intermediate state and the $ψ(3770)$ state is evaluated. It is shown that this interference is destructive and the relative phase between these two contributions is large ($ϕ_0 \approx 250^o$).
description: 16 pages, 6 figures. The authors included the long-range contributions (D-meson loop) in their calculations. The conclusion of the papers did not change
Blueprint of a scalable spin qubit shuttle device for coherent mid-range qubit transfer in disordered Si/SiGe/SiO$_2$
Creators: name: Langrock, Veit
name: Krzywda, Jan A.
name: Focke, Niels
name: Seidler, Inga
name: Schreiber, Lars R.
name: Cywiński, Łukasz
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Silicon spin qubits stand out due to their very long coherence times, compatibility with industrial fabrication, and prospect to integrate classical control electronics. To achieve a truly scalable architecture, a coherent mid-range link that moves the electrons between qubit registers has been suggested to solve the signal fan-out problem. Here, we present a blueprint of such a $\approx 10\,μ$m long link, called a spin qubit shuttle, which is based on connecting an array of gates into a small number of sets. To control these sets, only a few voltage control lines are needed and the number of these sets and thus the number of required control signals is independent of the length of this link. We discuss two different operation modes for the spin qubit shuttle: A qubit conveyor, i.e. a potential minimum that smoothly moves laterally, and a bucket brigade, in which the electron is transported through a series of tunnel-coupled quantum dots by adiabatic passage. We find the former approach more promising considering a realistic Si/SiGe device including potential disorder from the charged defects at the Si/SiO$_2$ layer, as well as typical charge noise. Focusing on the qubit transfer fidelity in the conveyor shuttling mode, we discuss in detail motional narrowing, the interplay between orbital and valley excitation and relaxation in presence of $g$-factors that depend on orbital and valley state of the electron, and effects from spin-hotspots. We find that a transfer fidelity of 99.9 \% is feasible in Si/SiGe at a speed of $\sim$10 m/s, if the average valley splitting and its inhomogeneity stay within realistic bounds. Operation at low global magnetic field $\approx 20$ mT and material engineering towards high valley splitting is favourable for reaching high fidelities of transfer.
description: The final version. 25 pages of main text, 5 pages of appendices
title: Μελέτη και προσομοίωση συστημάτων υπερευρείας ζώνης (UWB) και συνύπαρξη με συστήματα στενής ζώνης (narrowband) σε περιβάλλον Matlab
Creators: name: Αλεξίου Ευάγγελος
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
title: Παραλληλοποίηση εφαρμογών σε συστήματα πολυπύρηνων αρχιτεκτονικών με έμφαση στην αρχιτεκτονική CUDA
Creators: name: Κατσούλας Αναστάσιος
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
Wittke, A.-M./Olshausen, E./Szydlak, R., Historischer Atlas der antiken Welt / Der Neue Pauly
Creators: name: Wissemann, Michael
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Wittke, A.-M./Olshausen, E./Szydlak, R., Historischer Atlas der antiken Welt. Unter Mitarbeit von Sauer, V. und weiteren Fachwissenschaftlern, Der Neue Pauly, Supplemente Bd. 3, Stuttgart/Weimar 2007, EUR (J.B. Metzler; ISBN 978-3-476- 02031-4)
description: Forum Classicum, Nr. 3 (2008): Forum Classicum
α-FeAs-free SmFeAsO1-xFx by low temperature sintering with slow cooling
Creators: name: Fujioka, Masaya
name: Denholme, Saleem James
name: Ozaki, Toshinori
name: Okazaki, Hiroyuki
name: Deguchi, Keita
name: Demura, Satoshi
name: Hara, Hiroshi
name: Watanabe, Tohru
name: Takeya, Hiroyuki
name: Yamaguchi, Takahide
name: Kumakura, Hiroaki
name: Takano, Yoshihiko
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We obtained amorphous-FeAs-free SmFeAsO1-xFx using a low temperature sintering with slow cooling. SmFeAsO1-xFx is sintered at 980 °C for 40 hours and cooled slowly down to 600 °C. The low temperature sintering suppresses the formation of amorphous FeAs, and the slow cooling introduces much fluorine into SmFeAsO1-xFx. The superconductivity of this sample appears at 57.8 K and the superconducting volume fraction reaches 96 %. To study the change of fluorine concentration during the cooling process, samples are quenched by water at 950 °C, 900 °C, 850 °C, 800 °C, 750 °C and 700 °C. It is found that fluorine is substituted not only at the maximum heating temperature but also during the cooling process. The low temperature sintering with slow cooling is very effective to obtain a homogeneous SmFeAsO1-xFx with high fluorine concentration.
description: 17 pages, 7 figures
Aproximación al trabajo social en españa
Creators: name: Chaforlet, Aurora Castillo
Publisher: name: Locus Soci@l
Year: 2009

description: This text approaches the evolution and development of the Social Work as discipline and profession in Spain. After a brief historical review that frames the current situation we approach the professional group, demographic characteristics and professional activities. The knowledge of the Spanish social workers training and their scientific production completes the X-ray photography of the current situation of the profession.
description: Locus Soci@l, No 3 (2009)
Singular Density of States Measure for Subshift and Quasi-Periodic Schrödinger Operators
Creators: name: Avila, Artur
name: Damanik, David
name: Zhang, Zhenghe
Publisher: name: arXiv
Year: 2013
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Simon's subshift conjecture states that for every aperiodic minimal subshift of Verblunsky coefficients, the common essential support of the associated measures has zero Lebesgue measure. We disprove this conjecture in this paper, both in the form stated and in the analogous formulation of it for discrete Schrödinger operators. In addition we prove a weak version of the conjecture in the Schrödinger setting. Namely, under some additional assumptions on the subshift, we show that the density of states measure, a natural measure associated with the operator family and whose topological support is equal to the spectrum, is singular. We also consider one-frequency quasi-periodic Schrödinger operators with continuous sampling functions and show that generically, the density of states measure is singular as well.
description: 29 pages
A Novel Length-Flexible Lightweight Cancelable Fingerprint Template for Privacy-Preserving Authentication Systems in Resource-Constrained IoT Applications
Creators: name: Yin, Xuefei
name: Wang, Song
name: Zhu, Yanming
name: Hu, Jiankun
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Fingerprint authentication techniques have been employed in various Internet of Things (IoT) applications for access control to protect private data, but raw fingerprint template leakage in unprotected IoT applications may render the authentication system insecure. Cancelable fingerprint templates can effectively prevent privacy breaches and provide strong protection to the original templates. However, to suit resource-constrained IoT devices, oversimplified templates would compromise authentication performance significantly. In addition, the length of existing cancelable fingerprint templates is usually fixed, making them difficult to be deployed in various memory-limited IoT devices. To address these issues, we propose a novel length-flexible lightweight cancelable fingerprint template for privacy-preserving authentication systems in various resource-constrained IoT applications. The proposed cancelable template design primarily consists of two components: 1) length-flexible partial-cancelable feature generation based on the designed re-indexing scheme; and 2) lightweight cancelable feature generation based on the designed encoding-nested-difference-XOR scheme. Comprehensive experimental results on public databases~FVC2002 DB1-DB4 and FVC2004 DB1-DB4 demonstrate that the proposed cancelable fingerprint template achieves equivalent authentication performance to state-of-the-art methods in IoT environments, but our design substantially reduces template storage space and computational cost. More importantly, the proposed length-flexible lightweight cancelable template is suitable for a variety of commercial smart cards (e.g., C5-M.O.S.T. Card Contact Microprocessor Smart Cards CLXSU064KC5). To the best of our knowledge, the proposed method is the first length-flexible lightweight, high-performing cancelable fingerprint template design for resource-constrained IoT applications.
Social work in Italy: problems and perspectives
Creators: name: Campanini, Annamaria
Publisher: name: Locus Soci@l
Year: 2009

description: The article will present the state of social work in Italy, considering both the education and the profession. The aim is to describe the Italian situation by discussing some peculiar aspects and some criticisms
description: Locus Soci@l, No 3 (2009)
Superradiance and statistical entropy of hairy black hole in three dimensions
Creators: name: Eune, Myungseok
name: Gim, Yongwan
name: Kim, Wontae
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the statistical entropy of a rotating hairy black hole by taking into account superradiant modes in the brick wall method. The UV cutoff is independent of the gravitational hair, which gives the well-defined area law of the entropy. It can be shown that the angular momentum and the energy of matter field depend on the gravitational hair. For the vanishing gravitational hair, it turns out that the energy for matter is related to both the black hole mass and the black hole angular momentum whereas the angular momentum for matter field is directly proportional to the angular momentum of the black hole.
description: 8 pages, no figure, version to appear in PRD
Andrea Scheithauer: Verfeinerte Lebensweise und gesteigertes Lebensgefühl im augusteischen Rom
Creators: name: Chwalek, Burkard
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Andrea Scheithauer: Verfeinerte Lebensweise und gesteigertes Lebensgefühl im augusteischen Rom. Frankfurt am Main (Peter Lang) 2007, 331 S. (Studien zur klassischen Philologie 157, hrsg. von M. v. Albrecht), (ISBN 978-3-631- 55289-6)
description: Forum Classicum, Nr. 3 (2008): Forum Classicum
Raman Photogalvanic Effect: photocurrent at inelastic light scattering
Creators: name: Golub, L. E.
name: Glazov, M. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show theoretically that electromagnetic waves propagating in the transparency region of a non-centrosymmetric medium can induce a dc electric current. The origin of the effect is the Raman scattering of light by free carriers in the system. Due to the photon scattering, electrons undergo real quantum transitions resulting in the formation of their anisotropic momentum distribution and in shifts of electronic wavepackets giving rise to a steady state photocurrent. We present microscopic theory of the Raman Photogalvanic effect (RPGE) focusing on two specific situations: (i) generic case of a bulk gyrotropic semiconductor and (ii) a quantum well structure where the light is scattered by intersubband excitations. We uncover the relation of the predicted RPGE and the traditional photogalvanic effect at the light absorption.
description: 4+2 pages, 3 figures + SI
Social work: the idea of a profession and the professional project
Creators: name: Welbourn, Pelenope
Publisher: name: Locus Soci@l
Year: 2009

description: Social work has undergone rapid development over the fifty years since Greenwood classified it as a semi-profession. In this article, social work’s claim to be a profession is examined. It is examined in the light of ideas about what it means to be a profession; the development of theory and internationally recognised ethical principles; and reflection on the complexity of the social work role in both national and global contexts.
description: Locus Soci@l, No 3 (2009)
Image-based material analysis of ancient historical documents
Creators: name: Reynolds, Thomas
name: Dhali, Maruf A.
name: Schomaker, Lambert
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Researchers continually perform corroborative tests to classify ancient historical documents based on the physical materials of their writing surfaces. However, these tests, often performed on-site, requires actual access to the manuscript objects. The procedures involve a considerable amount of time and cost, and can damage the manuscripts. Developing a technique to classify such documents using only digital images can be very useful and efficient. In order to tackle this problem, this study uses images of a famous historical collection, the Dead Sea Scrolls, to propose a novel method to classify the materials of the manuscripts. The proposed classifier uses the two-dimensional Fourier Transform to identify patterns within the manuscript surfaces. Combining a binary classification system employing the transform with a majority voting process is shown to be effective for this classification task. This pilot study shows a successful classification percentage of up to 97% for a confined amount of manuscripts produced from either parchment or papyrus material. Feature vectors based on Fourier-space grid representation outperformed a concentric Fourier-space format.
description: 8 pages, 11 figures including supplementary documents; Submitted to ICPR 2022
Absence of a static in-plane magnetic moment in the "hidden-order" phase of URu$_2$Si$_2$
Creators: name: Das, P.
name: Baumbach, R. E.
name: Bauer, E. D.
name: Huang, K.
name: Maple, M. B.
name: Zhao, Y.
name: Helton, J.
name: Lynn, J. W.
name: Janoschek, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We have carried out a careful magnetic neutron scattering study of the heavy fermion compound \URuSi\ to probe the possible existence of a small magnetic moment parallel to tetragonal basal plane in the "hidden-order" phase. This small in-plane component of the magnetic moment on the uranium sites $S_\parallel$ has been postulated by two recent models (rank-5 superspin/hastatic order) aiming to explain the hidden-order phase, in addition to the well-known out-of-plane component $S_\perp ~ \approx~0.01-0.04 $μ_B$/U. In order to separate $S_\parallel$ and $S_\perp$ we take advantage of the condition that for magnetic neutron scattering only the components of the magnetic structure that are perpendicular to the scattering vector $Q$ contribute to the magnetic scattering. We find no evidence for an in-plane magnetic moment $S_\parallel$. Based on the statistics of our measurement, we establish that the upper experimental limit for the size of any possible in-plane component is $S^{\rm{max}}_\parallel ~ \leq~1\cdot 10^{-3} ~μ_B$/U.
description: 12 pages, 4 figures, updated introduction and discussion
title: Ανάπτυξη αλγορίθμου για βέλτιστη τοποθέτηση Φ/Β πλαισίων σε οποιοδήποτε αγροτεμάχιο
Creators: name: Μπαριάμπας Άντι
Publisher: name: Technical University of Crete
Year: 2011

description: Μη διαθέσιμο
Engaged Ephemeral Art: Street Art and the Egyptian Arab Spring
Creators: name: Naguib, Saphinaz Amal
Publisher: name: Transcultural Studies
Year: 2017
Subjects: street art; graffiti; calligraffiti; translation; political protest; slogan; Egypt; Arab Spring; Tahrir Square

description: The wave of uprisings known as the Arab Spring that swept over the Middle East and North Africa from December 2010 to early 2013 left its imprint on political and social life in the countries concerned. This ephemeral moment also marked a change in various forms of artistic expression. Street art, graffiti, and calligraffiti are among the most striking art forms of this short period. Artists recorded and commented on events and developments in the political situation. They drew upon their people’s cultural memory to impart their messages and expressed dissension, civil disobedience, and resistance by combining images and scripts. This article is about the materiality of visual art and the translation of political contestation into street art, graffiti, and calligraffiti in Egypt. It probes the ways slogans were visualised, drawn, and inscribed on the walls of the urban space in Cairo and then disseminated on the internet and social media. Translation relates here to transcultural contacts and the interplay between texts, images, and contexts from the vantage point of intermediality.
description: Transcultural Studies, No 2 (2016)