cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Postmerger multimessenger analysis of binary neutron stars: Effect of the magnetic field strength and topology
Creators: name: Bamber, Jamie
name: Tsokaros, Antonios
name: Ruiz, Milton
name: Shapiro, Stuart L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The oscillation modes of neutron star (NS) merger remnants, as encoded by the kHz postmerger gravitational wave (GW) signal, hold great potential for constraining the as-yet undetermined equation of state (EOS) of dense nuclear matter. Previous works have used numerical relativity simulations to derive quasi-universal relations for the key oscillation frequencies, but most of them omit the effects of a magnetic field. We conduct full general-relativistic magnetohydrodynamics simulations of NSNS mergers with two different masses and two different EOSs (SLy and ALF2) with three different initial magnetic field topologies (poloidal and toroidal only, confined to the interior, and "pulsar-like": dipolar poloidal extending from the interior to the exterior), with four different magnetic field strengths with maximum values ranging from from $5.5\times 10^{15}G$ to $2.2\times 10^{17}G$ at the time of insertion. We find that magnetic braking and magnetic effective turbulent viscosity drives the merger remnants towards uniform rotation and increases their overall angular momentum loss. As a result, the $f_2$ frequency of the dominant postmerger GW mode shifts upwards over time. The overall shift is up to $\sim 200$Hz for the strongest magnetic field we consider and $\sim 50$Hz for the median case and is therefore detectable in principle by future GW observatories, which should include the magnetic field in their analyses. We also explore the impact of the magnetic field on the postmerger electromagnetic emission, and demonstrate that an extremely large magnetic field, or alternatively a significant shear viscosity mechanism, can cause a supramassive NS remnant to collapse to a BH in less than 100ms and lead to jet formation, although we do not expect the conditions for such an outcome to be realistic.
description: 33 pages, 22 figures. arXiv admin note: text overlap with arXiv:2405.03705
Dynamo Action in Fully Convective Low-Mass Stars
Creators: name: Browning, Matthew
name: Basri, Gibor
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recent observations indicate that fully convective stars can effectively build magnetic fields without the aid of a tachocline of shear, that those fields can possess large-scale components, and that they may sense the effects of rotation. Motivated by these puzzles, we present global three-dimensional simulations of convection and dynamo action in the interiors of fully convective M-dwarfs of 0.3 solar masses. We use the Anelastic Spherical Harmonic (ASH) code, adopting a spherical computational domain that extends from 0.08-0.96 times the overall stellar radius. We find that such fully convective stars can generate magnetic fields of several kG strength, roughly in equipartition with the convective flows. Differential rotation is established in hydrodynamic progenitor calculations, but strongly quenched in MHD simulations because of strong Maxwell stresses exerted by the magnetic fields. Despite the absence of interior angular velocity contrasts, the magnetic fields possess strong mean (axisymmetric) components, which we attribute partly to the very strong influence of rotation upon the slowly overturning flows.
description: 8 pages, 2 color figures (at low resolution here; contact me for high-res equivalents). in press for "Unsolved Problems in Stellar Physics," held July 2-6 in Cambridge
Deux améliorations concurrentes des PID
Creators: name: Fliess, Michel
name: Join, Cédric
Publisher: name: arXiv
Year: 2018
Subjects: subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: 93B51, 93B52

description: In today's literature "Model-Free Control," or MFC, and "Active Disturbance Rejection Control," or ADRC, are the most prominent approaches in order to keep the benefits of PID controllers, that are so popular in the industrial world, and in the same time for attenuating their severe shortcomings. After a brief review of MFC and ADRC, several examples show the superiority of MFC, which permits to tackle most easily a much wider class of systems.
description: in French
Wasserstoff als nachhaltiger Energieträger
Creators: name: Epp, Amelie
name: Kutz, Janika
name: Sellner, Florian
name: Stöhr, Timo
name: Zimmermann, Felix
Publisher: name: Fraunhofer-Gesellschaft
Year: 2024
Subjects: Wasserstoff
Hydrogen
Akzeptanz
Energie
Nachhaltigkeit
Regiowin
Baden-Württemberg

description: Bundesregierung plant, mithilfe grünen Wasserstoffs einen Beitrag zur Energiewende zu leisten. So beschreibt die im Juni 2020 veröffentlichte Nationale Wasserstoffstrategie eine Förderung von zahlreichen Maßnahmen wie beispielsweise die Überarbeitung der Förderprogramme oder die Vertiefung der Zusammenarbeit auf EU-Ebene. Jedoch gestaltet sich eine solche Umsetzung ohne eine breite Akzeptanz insbesondere auf regionaler und unternehmerischer Ebene herausfordernd. Um die Akzeptanz bei Unternehmen für den Wandel hin zu einer Wasserstoffwirtschaft gezielt fördern zu können, ist es wichtig, die genauen Einflussfaktoren zu kennen. Aus diesem Grund hat das Fraunhofer IAO untersucht, welche Faktoren die Akzeptanz von Wasserstoff auf der Ebene von Unternehmen beeinflussen. Orientiert an dem Akzeptanzmodell nach Wüstenhagen et al. (2007) konnten auf den Ebenen der soziopolitischen, lokalen und Marktakzeptanz basierend auf einer Literaturrecherche und durch Interviews mit Expertinnen und Experten verschiedene Faktoren identifiziert werden, die einen Einfluss auf die Akzeptanz von Wasserstoff haben. Diese werden in der vorliegenden Studie vorgestellt sowie Handlungsempfehlungen beschrieben, um die Akzeptanz von H2 zu stärken.
Intrinsic breakdown strength: theoretical derivation and first-principles calculations
Creators: name: Liu, Shixu
name: Xiang, Hongjun
name: Gong, Xin-Gao
name: Yang, Ji-Hui
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Intrinsic breakdown strength (F_bd), as the theoretical upper limit of electric field strength that a material can sustain, plays important roles in determining dielectric and safety performance. The well accepted concept is that a larger band gap (E_g) often leads to a larger intrinsic breakdown strength. In this work, we analytically derive a simplified model of F_bd, showing a linear relationship between F_bd and the maximum electron density of states (DOS_max) within the energy range spanning from the conduction band minimum (CBM) to CBM+E_g. Using the Wannier interpolation technique to reduce the cost of calculating the F_bd for various three- and two-dimensional materials, we find that the calculated F_bd did not show any simple relationship with band gap, but it behaves linearly with the DOS_max, consistent with our theoretical derivation. Our work shows that the DOS_max is more fundamental than the band gap value in determining the F_bd, thus providing useful physical insights into the intrinsic dielectric breakdown strength and opening directions for improving high-power devices. The dimensional effects on F_bd has also been revealed that monolayers tend to have larger F_bd due to reduced screening effects.
Conservation of Chihuahuan Desert fishes – past and present
Creators: name: Garrett, Gary
name: Bean, Megan
name: Birdsong, Timothy
Publisher: name: F1000 Research Limited
Year: 2019

description: With 95% of the land in Texas privately owned, conservation of the aquatic resources is particularly daunting and is exemplified by the fact that 48% of the 191 native freshwater fishes in Texas are now of conservation concern. Partnerships with private landowners is not only sensible, but often the only way to achieve long-term conservation goals. In the Chihuahuan Desert region of Texas, 55% of the native fishes are of conservation concern or already lost to extirpation or extinction. Although there are numerous contributing factors, habitat degradation and loss are the primary culprits.
For decades, research and restoration have focused on some of the more imperiled species and their habitats. From reestablishing ciénegas, to landowner partnerships, to Conservation Agreements, much has been accomplished. Unfortunately, the challenges increase faster than our accomplishments. Our latest, and most promising, approach has been to develop six Native Fish Conservation Areas in the Chihuahuan Desert. These NFCAs represent an ecologically-focused conservation prioritization of watershed segments that serve as native fish “strongholds” and they function as priority areas for conservation investments to promote integrated, holistic conservation strategies that enable the long-term persistence of freshwater biodiversity.
Current and future conservation of aquatic resources in Texas emphasizes a landscape-scale approach, working primarily with private landowners to provide conservation best management practices and support on-the-ground projects to maintain or restore habitats to sustain functional ecosystems.
Light-ray operators in conformal field theory
Creators: name: Kravchuk, Petr
name: Simmons-Duffin, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We argue that every CFT contains light-ray operators labeled by a continuous spin J. When J is a positive integer, light-ray operators become integrals of local operators over a null line. However for non-integer J, light-ray operators are genuinely nonlocal and give the analytic continuation of CFT data in spin described by Caron-Huot. A key role in our construction is played by a novel set of intrinsically Lorentzian integral transforms that generalize the shadow transform. Matrix elements of light-ray operators can be computed via the integral of a double-commutator against a conformal block. This gives a simple derivation of Caron-Huot's Lorentzian OPE inversion formula and lets us generalize it to arbitrary four-point functions. Furthermore, we show that light-ray operators enter the Regge limit of CFT correlators, and generalize conformal Regge theory to arbitrary four-point functions. The average null energy operator is an important example of a light-ray operator. Using our construction, we find a new proof of the average null energy condition (ANEC), and furthermore generalize the ANEC to continuous spin.
description: 74 pages plus appendices; v2: fixed typos, updated references, expanded discussion of even spin/odd spin trajectories; v3: fixed some factors of 2
Articulated Motion Modeling for Activity Analysis
Creators: name: Gao, Jiang
name: Collins, Robert T.
name: Hauptmann, Alexander
name: Wactlar, Howard
Publisher: name: Carnegie Mellon University
Year: 1974
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We propose an algorithm for articulated human motion segmentation that estimates parametric motions of body parts and segments images into moving regions accordingly. Our approach combines robust optical flow estimation, RANSAC, and region segmentation using color and Gaussian shape priors. This combination results in an algorithm that can robustly estimate and segment multiple motions, even for moving regions with small support and in low-resolution images. Based on the raw motion segmentation, consistent body motions are detected over time to characterize human activity. The effectiveness of this approach is demonstrated in a real scenario: characterizing dining activities of patients at a nursing home.
Geometry of the isotropic oscillator driven by the conformal mode
Creators: name: Galajinsky, Anton
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Geometrization of a Lagrangian conservative system typically amounts to reformulating its equations of motion as the geodesic equations in a properly chosen curved spacetime. The conventional methods include the Jacobi metric and the Eisenhart lift. In this work, a modification of the Eisenhart lift is proposed which describes the isotropic oscillator in arbitrary dimension driven by the one-dimensional conformal mode.
description: V3: 10 pages, presentation improved, the version to appear in Eur. Phys. J. C
title: Fauna of New Zealand 28: Larvae of Curculionoidea (Insecta: Coleoptera): a systematic overview
Creators: name: May, BM
Publisher: name: Manaaki Whenua Press
Year: 1993

description: The Fauna of New Zealand / Ko te Aitanga Pepeke o Aotearoa monograph series. ISSN: 1179-7193
title: Fauna of New Zealand 29: Cryptorhynchinae (Insecta: Coleoptera: Curculionidae)
Creators: name: Lyal, CHC
Publisher: name: Manaaki Whenua Press
Year: 1993

description: The Fauna of New Zealand / Ko te Aitanga Pepeke o Aotearoa monograph series. ISSN: 1179-7193
Framing Differences Between Local and National Media in the Trayvon Martin Case
Creators: name: Lerouge, Samantha
Publisher: name: My University
Year: 2017

description: The purpose of this study was to explore the difference in media representations in local and national news by examining the 2012 Trayvon Martin case between the parameters of February 26, 2012- April 12, 2012. In this case, an African American adolescent was shot and killed in Sanford, Florida, by a neighborhood watch coordinator by the name of George Zimmerman. Through a mix method approach, the research used content and discourse analysis as tools to analyze and gather data from the New York Times and Orlando Sentinel in the coverage of the case. Content analysis was used to give an overview of the data set, while discourse analysis helped describe the interpreted meanings that were constructed within the articles’ text to shed light on media framing. To further examine the research question, the study also analyzed if there was a difference in the Orlando Sentinel’s coverage before and after Trayvon Martin case became national news. The findings discovered that the New York Times emphasizes race more than the Orlando Sentinel. Further analysis showed that once the New York Times picked up the coverage on the Trayvon Martin case on March 16, 2012, there was a difference in the Orlando Sentinel’s headlines and language used within their article. Additionally, the findings revealed that the news used its ‘power’ to subtly reinforce and maintain longstanding racialized stereotypes of Blacks with the use of media framing. The Trayvon Martin case gave me the opportunity to examine the complexity and dynamics of the creation of racialized stereotypes and how the ‘powerful’ role news plays in reinforcing, perpetuating, and creating discourses.
Wide-field Ultraviolet Imager for Astronomical Transient Studies
Creators: name: Mathew, Joice
name: Ambily, S.
name: Prakash, Ajin
name: Sarpotdar, Mayuresh
name: Nirmal, K.
name: Sreejith, A. G.
name: Safonova, Margarita
name: Murthy, Jayant
name: Brosch, Noah
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Though the ultraviolet (UV) domain plays a vital role in the studies of astronomical transient events, the UV time-domain sky remains largely unexplored. We have designed a wide-field UV imager that can be flown on a range of available platforms, such as high-altitude balloons, CubeSats, and larger space missions. The major scientific goals are the variability of astronomical sources, detection of transients such as supernovae, novae, tidal disruption events, and characterizing AGN variability. The instrument has an 80 mm aperture with a circular field of view of 10.8 degrees, an angular resolution of around 22 arcsec, and a 240-390 nm spectral observation window. The detector for the instrument is a Microchannel Plate (MCP)-based image intensifier with both photon counting and integration capabilities. An FPGA-based detector readout mechanism and real-time data processing have been implemented. The imager is designed in such a way that its lightweight and compact nature are well fitted for the CubeSat dimensions. Here we present various design and developmental aspects of this UV wide-field transient explorer.
description: Accepted for publication in Experimental Astronomy
Future stability of the $1+3$ Milne model for Einstein-Klein-Gordon system
Creators: name: Wang, Jinhua
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the small perturbations of the $1+3$-dimensional Milne model for the Einstein-Klein-Gordon (EKG) system. We prove the nonlinear future stability, and show that the perturbed spacetimes are future causally geodesically complete. For the proof, we work within the constant mean curvature (CMC) gauge and focus on the $1+3$ splitting of the Bianchi-Klein-Gordon equations. Moreover, we treat the Bianchi-Klein-Gordon equations as evolution equations and establish the energy scheme in the sense that we only commute the Bianchi-Klein-Gordon equations with the spatially covariant derivatives while the normal derivative is not allowed.
description: The scale-free variables including the rescaled mass (1.5) for the Klein Gordon field are used to make the estimates uniform (Thanks to the suggestions from an anonymous referee); More reference and remark are added; e.g. Remark 3.10 (P.18) confirms the inevitability of the borderline terms arising in the KG equation
title: ADCO, Cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Cart. 34 (G 138), 22 folios, f. 0038
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: LaMOP
subject: Chartes de la Bourgogne du Moyen Âge
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 34 (G 138), 22 folios, f. 0038, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Saint-Etienne de Dijon (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 34 (G 138), 22 folios, f. 0038, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
eTraj.jl: Trajectory-Based Simulation for Strong-Field Ionization
Creators: name: Zhu, Mingyu
name: Ni, Hongcheng
name: Wu, Jian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The dynamics of light-matter interactions in the realm of strong-field ionization has been a focal point and has attracted widespread interest. We present the eTraj.jl program package, designed to implement established classical/semiclassical trajectory-based methods to determine the photoelectron momentum distribution resulting from strong-field ionization of both atoms and molecules. The program operates within a unified theoretical framework that separates the trajectory-based computation into two stages: initial-condition preparation and trajectory evolution. For initial-condition preparation, we provide several methods, including the Strong-Field Approximation with Saddle-Point Approximation (SFA-SPA), SFA-SPA with Non-adiabatic Expansion (SFA-SPANE), and the Ammosov-Delone-Krainov theory (ADK), with atomic and molecular variants, as well as the Weak-Field Asymptotic Theory (WFAT) for molecules. For trajectory evolution, available options are Classical Trajectory Monte-Carlo (CTMC), which employs purely classical electron trajectories, and the Quantum Trajectory Monte-Carlo (QTMC) and Semi-Classical Two-Step model (SCTS), which include the quantum phase during trajectory evolution. The program is a versatile, efficient, flexible, and out-of-the-box solution for trajectory-based simulations for strong-field ionization. It is designed with user-friendliness in mind and is expected to serve as a valuable and powerful tool for the community of strong-field physics.
description: Repository link: https://github.com/TheStarAlight/eTraj.jl
ARGUS: Rete + DBMS = Efficient Persistent Profile Matching on Large-Volume Data Streams
Creators: name: Jin, Chun
name: Carbonell, Jaime G.
name: Hayes, Phil
Publisher: name: Carnegie Mellon University
Year: 2002
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Efficient processing of complex streaming data presents multiple challenges, especially when combined with intelligent detection of hidden anomalies in real time. We label such systems Stream Anomaly Monitoring Systems (SAMS), and describe the CMU/Dynamix ARGUS system as a new kind of SAMS to detect rare but high value patterns combining streaming and historical data. Such patterns may correspond to hidden precursors of terrorist activity, or early indicators of the onset of a dangerous disease, such as a SARS outbreak. Our method starts from an extension of the RETE algorithm for matching streaming data against multiple complex persistent queries, and proceeds beyond to transitivity inferences, conditional intermediate result materialization, and other such techniques to obtain both accuracy and efficiency, as demonstrated by the evaluation results outperforming classical techniques such as a modern DMBS.
MOESM8 of N,N-dimethylformamide induces cellulase production in the filamentous fungus Trichoderma reesei
Creators: name: Chen, Yumeng
name: Wu, Chuan
name: Shen, Yaling
name: Ma, Yushu
name: Wei, Dongzhi
name: Wang, Wei
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Additional file 8: Table S3. Whole transcriptome shotgun sequencing data and RT-qPCR verification of plc-e gene expression with 0 or 1% DMF added to cultures.
Essays in globalization Technology and the Labor Market
Creators: name: Guta, Ashenafi Teshome
Publisher: name: Universität Bielefeld
Year: 2019
Subjects: subject: 330

description: This thesis attempts to investigate and analyze the link between technological advancement, international trade, and the labor market. It comprises three independent chapters of which the first two are empirical work and the third one is the theoretical work. The first chapter of the thesis introduces the general overview of the thesis and the main motivations. The second chapter "Job polarization; Evidence from Developing Countries" attempts to investigate and present the evidence of job polarization in the case of the developing countries, using the Ethiopian labor force survey data. Job polarization, which the growth of the employment of both high skilled and low skilled workers at the expense of the middle-skilled once, is a widely discussed phenomenon in the case of advanced countries like for the US (see Autor et al. (2003) and others), for the UK (see Goos and Manning (2007) and Salvatore (2015)), for EU (Goos et al. (2009)) and others. However, there hardly exists the evidence in the case of developing countries, apart from some reports by the World Bank. The starting point for the present chapter is Blanchard and Willman (2016) trade model which shows the hollowing out of the middle-class workers in developed countries and the opposite in the developing countries. Using the labor force survey data from Ethiopian CSA, however, this study finds clear evidence of job polarization in developing countries; Ethiopia. The third chapter, "The impact of Firms' global market engagement on the local labor market", analyses the effect of firms' participation global market via trade or ownership (FDI) on the labor market outcome and inequality using the Ethiopian manufacturing firms survey data. The results from the regression analysis show the firm’s global market engagement through export contributes positively to employment and wage growth. However, the wage gap between skilled and unskilled workers stay significantly positive. Further analysis also shows as the effect is positive, significant for the high and low skilled workers, and negative, significant for middle-skilled workers, which is a confirmation for the evidence of job polarization discussed in chapter two. The fourth chapter "International trade and Equilibrium unemployment with heterogeneous firms and workers" attempts to bridge two strands of economic literature; International trade with heterogeneous firms (the Melitz (2003) model) and the frictional labor market (Pissarides (2000) model). Thus, the model shows the interaction between the labor market and trade variables. We showed that productivity cut-offs are directly affected by trade liberalization and further depends on the labor market tightness. The model also shows as the wage inequality between workers in the exporting and non-exporting sector increases due to trade liberalization.
title: «Pendono interrotte le opere». Antichi monumenti incompiuti nel mondo greco
Creators: name: PAPINI, Massimiliano
Publisher: name: Sapienza Università Editrice
Year: 2019

description: «Pendono interrotte le opere…», recita un celebre verso nel quarto libro dell’Eneide, quando a Cartagine, in conseguenza della passione di Didone per Enea, il fervore dei cantieri, si è improvvisamente fermato.
In età contemporanea l’incompiuto, oltre che nelle arti figurative e in letteratura, suscita molto interesse nel campo dell’architettura, perché rappresentativo delle condizioni di provvisorietà e di precarietà del secolo da poco iniziato.
Questo libro si concentra sulle cause e sulla percezione dei diversi monumenti incompiuti del mondo greco dall’età arcaica in poi ed esamina in dettaglio le vicende di alcuni edifici interrotti e/o contraddistinti dalla presenza di parti lasciate in diversi stadi di lavorazione e mai giunte alla fine (telos) grazie alle evidenze archeologiche, epigrafiche e letterarie.
Risalenti ai tanti secoli compresi tra l’età arcaica e almeno la tarda epoca imperiale, quelle costruzioni sono ovunque e appartengono a una vasta area geografica, dalla Grecia continentale alla Magna Grecia e all’area microasiatica.
Al centro dell’interesse è quindi quanto in architettura poteva valere come atelēs, hēmitelēs, hēmiergos, inchoatus, imperfectus; tutti vocaboli che traduciamo, in modo più approssimativo, con aggettivi privativi del genere di non finito, non rifinito, incompiuto, incompleto, interrotto e imperfetto, spesso impiegati come sinonimi; ma non è poi detto che tutto quello che abbiamo la tendenza oggi a considerare tale fosse giudicato in maniera analoga dagli Antichi.
Symmetry Breaking Patterns for Inflation
Creators: name: Klein, Remko
name: Roest, Diederik
name: Stefanyszyn, David
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study inflationary models where the kinetic sector of the theory has a non-linearly realised symmetry which is broken by the inflationary potential. We distinguish between kinetic symmetries which non-linearly realise an internal or space-time group, and which yield a flat or curved scalar manifold. This classification leads to well-known inflationary models such as monomial inflation and $α$-attractors, as well as a new model based on fixed couplings between a dilaton and many axions which non-linearly realises higher-dimensional conformal symmetries. In this model, inflation can be realised along the dilatonic direction, leading to a tensor-to-scalar ratio $r \sim 0.01$ and a spectral index $n_{s} \sim 0.975$. We refer to the new model as ambient inflation since inflation proceeds along an isometry of an anti-de Sitter ambient space-time, which fully determines the kinetic sector.
description: References added, discussion of Wess-Zumino term extended
Textbook Costs and Affordable Alternatives at the University of Ottawa
Creators: name: Brunet, Mélanie
Publisher: name: My University
Year: 2020
Subjects: TextbookBroke
Textbook costs
Open educational resources
Open education

description: Presentation for Open Education Week 2020 at uOttawa. Since January 2018, the Library has been tracking textbook costs at the University of Ottawa through #TextbookBroke campaigns and data collection from local bookstores. Presents the results and how they compare with larger trends, what the Library is doing about it, and how the university community can advocate for low-cost alternatives.
AI on My Shoulder: Supporting Emotional Labor in Front-Office Roles with an LLM-based Empathetic Coworker
Creators: name: Swain, Vedant Das
name: Zhong, Qiuyue "Joy"
name: Parekh, Jash Rajesh
name: Jeon, Yechan
name: Zimmermann, Roy
name: Czerwinski, Mary
name: Suh, Jina
name: Mishra, Varun
name: Saha, Koustuv
name: Hernandez, Javier
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Client-Service Representatives (CSRs) are vital to organizations. Frequent interactions with disgruntled clients, however, disrupt their mental well-being. To help CSRs regulate their emotions while interacting with uncivil clients, we designed Care-Pilot, an LLM-powered assistant, and evaluated its efficacy, perception, and use. Our comparative analyses between 665 human and Care-Pilot-generated support messages highlight Care-Pilot's ability to adapt to and demonstrate empathy in various incivility incidents. Additionally, 143 CSRs assessed Care-Pilot's empathy as more sincere and actionable than human messages. Finally, we interviewed 20 CSRs who interacted with Care-Pilot in a simulation exercise. They reported that Care-Pilot helped them avoid negative thinking, recenter thoughts, and humanize clients; showing potential for bridging gaps in coworker support. Yet, they also noted deployment challenges and emphasized the indispensability of shared experiences. We discuss future designs and societal implications of AI-mediated emotional labor, underscoring empathy as a critical function for AI assistants for worker mental health.
Color Transfer Enhancement for Heavy Quarkonium Production
Creators: name: Nayak, Gouranga C.
name: Qiu, Jian-Wei
name: Sterman, George
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the transfer of color between a heavy quark pair and an unpaired heavy quark or antiquark moving at a nonrelativistic velocity with respect to the pair. We find that the open heavy quark or antiquark can catalyze the transformation of the pair from octet representation at short distances to singlet at long distances. This process is infrared sensitive in general, and we exhibit double poles in dimensional regularization at next-to-next-to-leading order in the transition probability. Because of their dependence on kinematic variables, these poles cannot be matched to the non-perturbative matrix elements of effective field theories based on a single heavy quark pair.
description: 23 pages, 8 figures, references updated, paper accepted for publication in Phys. Rev. D
ARGUS: Efficient Scalable Continuous Query Optimization for Large-Volume Data Streams
Creators: name: Jin, Chun
name: Carbonell, Jaime G.
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We present the architecture of ARGUS, a stream processing system implemented atop commercial DBMSs to support large-scale complex continuous queries over data streams. ARGUS supports incremental operator evaluation and incremental multi-query plan optimization as new queries arrive. The latter is done to a degree well beyond the previous state-of-the-art via a suite of techniques such as query-algebra canonicalization, indexing, and searching, and topological query network optimization with join order optimization, conditional materialization, minimal column projection, and transitivity inference. Building on top of a DBMS, the system provides a value-adding package to the existing database applications where the needs of stream processing become increasingly demanding. Compared to directly running the continuous queries on the DBMS, ARGUS achieves well over a 100-fold improvement in performance
Axion Astrophysics
Creators: name: Carenza, Pierluca
name: Giannotti, Maurizio
name: Isern, Jordi
name: Mirizzi, Alessandro
name: Straniero, Oscar
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Stars have been recognized as optimal laboratories to probe axion properties. In the last decades there have been significant advances in this field due to a better modelling of stellar systems and accurate observational data. In this work we review the current status of constraints on axions from stellar physics. We focus in particular on the Sun, globular cluster stars, white dwarfs and (proto)-neutron stars.
description: 130 pages, 59 figures, 9 tables. v2: minor revisions to match the published version
APPLICATE Presentation at the ECRA General Assembly 2019
Creators: name: Jung, Thomas
Publisher: name: Zenodo
Year: 2019

description: At the end of February 2019 the European Climate Research Alliance hosted an ECRA General Assembly in Brussels. The presentations and discussions during the meeting referred to the overarching theme "Climate Change and Actionable Information". The APPLICATE project coordinator presented first results and updates from the project.
Area Optimizations for Dual-Rail Circuits Using Relative-Timing Analysis
Creators: name: Chelcea, Tiberiu
name: Girish  Venkataramani
name: Goldstein, Seth C.
Publisher: name: Carnegie Mellon University
Year: 1972
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Future deep sub-micron technologies will be characterized by large parametric variations, which could make asynchronous design an attractive solution for use on large scale. However, the investment in asynchronous CAD tools does not approach that in synchronous ones. Even when asynchronous tools leverage existing synchronous tool flows, they introduce large area and speed overheads. This paper proposes several heuristic and optimal algorithms, based on timing interval analysis, for improving existing asynchronous CAD solutions by optimizing area. The optimized circuits are 2.4 times smaller for an optimal algorithm and 1.8 times smaller for a heuristic one than the existing solutions. The optimized circuits are also shown to be resilient to large parametric variations, yielding better average-case latencies than their synchronous counterparts.
Mapping Ricci-based theories of gravity into general relativity
Creators: name: Afonso, V. I.
name: Olmo, Gonzalo J.
name: Rubiera-Garcia, D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that the space of solutions of a wide family of Ricci-based metric-affine theories of gravity can be put into correspondence with the space of solutions of general relativity (GR). This allows us to use well-established methods and results from GR to explore new gravitational physics beyond it.
description: 6 double column pages
Gaussian entanglement of symmetric two-mode Gaussian states
Creators: name: Marian, Paulina
name: Marian, Tudor A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A Gaussian degree of entanglement for a symmetric two-mode Gaussian state can be defined as its distance to the set of all separable two-mode Gaussian states. The principal property that enables us to evaluate both Bures distance and relative entropy between symmetric two-mode Gaussian states is the diagonalization of their covariance matrices under the same beam-splitter transformation. The multiplicativity property of the Uhlmann fidelity and the additivity of the relative entropy allow one to finally deal with a single-mode optimization problem in both cases. We find that only the Bures-distance Gaussian entanglement is consistent with the exact entanglement of formation.
description: Submitted to European Physical Journal Special Topics as a contribution to CEWQO, Palermo 2007
IRSC liste de contrôle pour l'application des connaissances
Creators: name: Girard, Marie-Eve
Publisher: name: My University
Year: 2021
Subjects: Outil
mobilisation des connaissances
IRSC
application des connaissances

description: Cette liste de contrôle a été élaborée pour aider les rédacteurs de propositions pour lesIRSC à réfléchir à toutes les sections dans lesquelles l’application des connaissancespeut être abordée dans une proposition des IRSC. Utilisez cette liste de contrôle pour vérifier si vous avez inclus dans votre propositiontous les éléments importants liés à l’application des connaissances qui sont pertinentspour votre projet de recherche dans chaque section de la proposition (résumé de laproposition, approche méthodologique, calendrier, rôles et responsabilités oudescription des partenaires, application des connaissances, budget et CV desparticipants).
Energy Extraction from a Black Hole by a Strongly Magnetized Thin Accretion Disk
Creators: name: Dhang, Prasun
name: Dexter, Jason
name: Begelman, Mitchell C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The presence of a strong, large-scale magnetic field in an accretion flow leads to extraction of the rotational energy of the black hole (BH) through the Blandford-Znajek (BZ) process, believed to power relativistic jets in various astrophysical sources. We study rotational energy extraction from a BH surrounded by a highly magnetized thin disk by performing a set of 3D global GRMHD simulations. We find that the saturated flux threading the BH has a weaker dependence on BH spin, compared to highly magnetized hot (geometrically thick) accretion flows. Also, we find that only a fraction ($10-70$ per cent) of the extracted BZ power is channeled into the jet, depending on the spin parameter. The remaining energy is potentially used to launch winds or contribute to the radiative output of the disk or corona. Our simulations reveal that the presence of a strong magnetic field enhances the radiative efficiency of the disk, making it more luminous than its weakly magnetized counterpart or the standard disk model. We attribute this excess luminosity primarily to the enhanced magnetic dissipation in the intra-ISCO region. Our findings have implications for understanding X-ray corona formation and black hole spin measurements, and interpreting black hole transient phenomena.
description: 22 pages, 16 figures, published in ApJ
'It's Reducing a Human Being to a Percentage'; Perceptions of Justice in Algorithmic Decisions
Creators: name: Binns, Reuben
name: Van Kleek, Max
name: Veale, Michael
name: Lyngs, Ulrik
name: Zhao, Jun
name: Shadbolt, Nigel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences
subject: H.5.m; K.4.1

description: Data-driven decision-making consequential to individuals raises important questions of accountability and justice. Indeed, European law provides individuals limited rights to 'meaningful information about the logic' behind significant, autonomous decisions such as loan approvals, insurance quotes, and CV filtering. We undertake three experimental studies examining people's perceptions of justice in algorithmic decision-making under different scenarios and explanation styles. Dimensions of justice previously observed in response to human decision-making appear similarly engaged in response to algorithmic decisions. Qualitative analysis identified several concerns and heuristics involved in justice perceptions including arbitrariness, generalisation, and (in)dignity. Quantitative analysis indicates that explanation styles primarily matter to justice perceptions only when subjects are exposed to multiple different styles---under repeated exposure of one style, scenario effects obscure any explanation effects. Our results suggests there may be no 'best' approach to explaining algorithmic decisions, and that reflection on their automated nature both implicates and mitigates justice dimensions.
description: 14 pages, 3 figures, ACM Conference on Human Factors in Computing Systems (CHI'18), April 21--26, Montreal, Canada
Doing Good, Feeling Good: Causal Evidence from Canadian Volunteers
Creators: name: Deri Armstrong, Catherine
name: Devlin, Rose Anne
name: Seifi, Forough
Publisher: name: My University
Year: 2018
Subjects: volunteering
volunteering and health
volunteering and life satisfaction

description: Volunteers are reputedly healthier and happier than their non-volunteering counterparts. But is this a causal link or are healthier, happy individuals simply more likely to volunteer? Some papers have attempted to identify the causal relationship using an instrumental variable methodology; most relying on measures of religiosity as instruments for volunteering. No studies of such nature have been conducted in Canada. We rely on a novel instrument, a measure physical proximity to volunteer opportunities and use data from Canadian General Social Surveys to fill this gap. Employing a conditional mixed process (CMP) model, we find that volunteering is a robustly significant predictor of health, and positively affects life satisfaction for female and middle-aged individuals.
MOESM9 of N,N-dimethylformamide induces cellulase production in the filamentous fungus Trichoderma reesei
Creators: name: Chen, Yumeng
name: Wu, Chuan
name: Shen, Yaling
name: Ma, Yushu
name: Wei, Dongzhi
name: Wang, Wei
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Physiology
subject: Biotechnology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology

description: Additional file 9. Construction of Î plc-e strains and effect of PLC-E on DMF-induced cellulase overexpression.
Are These Documents Written from Different Perspectives? A Test of Different Perspectives Based On Statistical Distribution Divergence
Creators: name: Wei-Hao  Lin
name: Hauptmann, Alexander
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: In this paper we investigate how to automatically determine if two document collections are written from different perspectives. By perspectives we mean a point of view, for example, from the perspective of Democrats or Republicans. We propose a test of different perspectives based on distribution divergence between the statistical models of two collections. Experimental results show that the test can successfully distinguish document collections of different perspectives from other types of collections.
Supernova-driven winds in simulated dwarf galaxies
Creators: name: Hu, Chia-Yu
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate galactic winds driven by supernova (SN) explosions in an isolated dwarf galaxy using high-resolution (particle mass $m_{\rm gas} = 1{\rm M_\odot}$, number of neighbor $N_{\rm ngb} = 100$) smoothed-particle hydrodynamics simulations that include non-equilibrium cooling and chemistry, individual star formation, stellar feedback and metal enrichment. Clustered SNe lead to the formation of superbubbles which break out of the disk and vent out hot gas, launching the winds. We find much weaker winds than what cosmological simulations typically adopt at this mass scale. At the virial radius, the time-averaged loading factors of mass, momentum and energy are 3, 1 and 0.05, respectively, and the metal enrichment factor is 1.5. Winds that escape the halo consist of two populations that differ in their launching temperatures. Hot gas acquires enough kinetic energy to escape when launched while warm gas does not. However, warm gas can be further accelerated by the ram pressure of the subsequently launched hot gas and eventually escape. The strong interactions between different temperature phases highlight the caveat of extrapolating properties of warm gas to large distances based on its local conditions (e.g. the Bernoulli parameter). Our convergence study finds that wind properties converge when the cooling masses of individual SNe are resolved, which corresponds to $m_{\rm gas}=5 {\rm M_\odot}$ with an injection mass of $500 {\rm M_\odot}$. The winds weaken dramatically once the SNe become unresolved. We demonstrate that injecting the terminal momentum of SNe, a popular sub-grid model in the literature, fails to capture SN winds irrespective of the inclusion of residual thermal energy.
description: Version accepted for publication, including discussion on effects of residual thermal energy and injection mass (appendix A & B)