cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$P$-wave $ππ$ scattering and the $ρ$ resonance from lattice QCD
Creators: name: Alexandrou, Constantia
name: Leskovec, Luka
name: Meinel, Stefan
name: Negele, John
name: Paul, Srijit
name: Petschlies, Marcus
name: Pochinsky, Andrew
name: Rendon, Gumaro
name: Syritsyn, Sergey
Publisher: name: arXiv
Year: 2017
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 calculate the parameters describing elastic $I=1$, $P$-wave $ππ$ scattering using lattice QCD with $2+1$ flavors of clover fermions. Our calculation is performed with a pion mass of $m_π\approx 320\:\:{\rm MeV}$ and a lattice size of $L\approx 3.6$ fm. We construct the two-point correlation matrices with both quark-antiquark and two-hadron interpolating fields using a combination of smeared forward, sequential and stochastic propagators. The spectra in all relevant irreducible representations for total momenta $|\vec{P}| \leq \sqrt{3} \frac{2π}{L}$ are extracted with two alternative methods: a variational analysis as well as multi-exponential matrix fits. We perform an analysis using Lüscher's formalism for the energies below the inelastic thresholds, and investigate several phase shift models, including possible nonresonant contributions. We find that our data are well described by the minimal Breit-Wigner form, with no statistically significant nonresonant component. In determining the $ρ$ resonance mass and coupling we compare two different approaches: fitting the individually extracted phase shifts versus fitting the $t$-matrix model directly to the energy spectrum. We find that both methods give consistent results, and at a pion mass of $am_π=0.18295(36)_{stat}$ obtain $g_{ρππ} = 5.69(13)_{stat}(16)_{sys}$, $am_ρ= 0.4609(16)_{stat}(14)_{sys}$, and $am_ρ/am_{N} = 0.7476(38)_{stat}(23)_{sys} $, where the first uncertainty is statistical and the second is the systematic uncertainty due to the choice of fit ranges.
description: 20 pages, 12 figures, published version
A model theory of topology
Creators: name: Lipparini, Paolo
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Topology (math.GN)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: Primary 54A05, Secondary 03C65, 54C05, 03B22, 06A15, 06A75

description: An algebraization of the notion of topology has been proposed more than seventy years ago in a classical paper by McKinsey and Tarski. However, in McKinsey and Tarski's setting the model theoretical notion of homomorphism does not correspond to the notion of continuity. We notice that the two notions correspond if instead we consider a preorder relation $ \sqsubseteq $ defined by $a \sqsubseteq b$ if $a$ is contained in the topological closure of $b$.
 A specialization poset is a partially ordered set endowed with a further coarser preorder relation $ \sqsubseteq $. We show that every specialization poset can be embedded in the specialization poset naturally associated to some topological space, where the order relation corresponds to set-theoretical inclusion. Specialization semilattices are defined in an analogous way and the corresponding embedding theorem is proved. The interest of these structures arises from the fact that they also occur in many rather disparate settings, even far removed from topology.
description: 30 pages
Wanted: Soft and friable witness. Mimotien ceramic artifacts
Creators: name: Noël Haidle, Miriam Noël
name: Heng, Sophady
name: Tausendfreund, Heike
name: Vonthein, Reinhard
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 3 (2010): Zeitschrift für Archäologie Außereuropäischer Kulturen
Bibliometric and Research Impact activities at the University of Illinois at Urbana–Champaign'
Creators: name: Mischo, William H.
name: Schlembach, Mary C.
Publisher: name: Zenodo
Year: 2022
Subjects: bibliometrics

description: A report of activities from the Library at UIUC including using data vizualizations. These activities enhance the role of the library in supporting knowledge management and scholarly communication and in fostering campus partnerships.
Deep-learning Top Taggers or The End of QCD?
Creators: name: Kasieczka, Gregor
name: Plehn, Tilman
name: Russell, Michael
name: Schell, Torben
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Machine learning based on convolutional neural networks can be used to study jet images from the LHC. Top tagging in fat jets offers a well-defined framework to establish our DeepTop approach and compare its performance to QCD-based top taggers. We first optimize a network architecture to identify top quarks in Monte Carlo simulations of the Standard Model production channel. Using standard fat jets we then compare its performance to a multivariate QCD-based top tagger. We find that both approaches lead to comparable performance, establishing convolutional networks as a promising new approach for multivariate hypothesis-based top tagging.
description: Version published in JHEP
Counterexamples for the fractal Schrödinger convergence problem with an intermediate space trick
Creators: name: Eceizabarrena, Daniel
name: Ponce-Vanegas, Felipe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 35J10, Secondary 42B37

description: We construct counterexamples for the fractal Schrödinger convergence problem by combining a fractal extension of Bourgain's counterexample and the intermediate space trick of Du--Kim--Wang--Zhang. We confirm that the same regularity as Du's counterexamples for weighted $L^2$ restriction estimates is achieved for the convergence problem. To do so, we need to construct the set of divergence explicitly and compute its Hausdorff dimension, for which we use the Mass Transference Principle, a technique originated from Diophantine approximation.
Análisis de dos fragmentos de un objeto textil tridimensional de la tumba del “Señor de Sipán”, Perú
Creators: name: Farke, Heidemarie
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
N=4 l-conformal Galilei superalgebra
Creators: name: Galajinsky, Anton
name: Masterov, Ivan
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: An N=4 supersymmetric extension of the l-conformal Galilei algebra is constructed. This is achieved by combining generators of spatial symmetries from the l-conformal Galilei algebra and those underlying the most general superconformal group in one dimension D(2,1;a). The value of the group parameter a is fixed from the requirement that the resulting superalgebra is finite-dimensional. The analysis reveals a=-1/2 thus reducing D(2,1;a) to OSp(4|2).
description: V3:11 pages. Two misprints in the introduction corrected. The version to appear in PLB
textiles de la tumba del “Señor de Sipán”, Perú
Creators: name: Prümers, Heiko
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
céramique non décorée de l’abri de Hassi Ouenzga et le début de l’utilisation des récipients en céramique dans le nord-ouest du Maghreb
Creators: name: Schneider, Florian
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
On Sylvester sums of compound sequence semigroup complements
Creators: name: Gassert, Thomas A.
name: Shor, Caleb M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: In this paper, we consider the set $\textit{NR}(G)$ of natural numbers which are not in the numerical semigroup generated by a compound sequence $G$. We generalize a result of Tuenter which completely characterizes $\textit{NR}(G)$. We use this result to compute Sylvester sums, and we give a direct application to the computation of weights of higher-order Weierstrass points on some families of complex algebraic curves.
description: 17 pages, revised, originally submitted for publication December '16
techno-complexes Ibéromaurusiens d’Ifri El Baroud (Rif Oriental, Maroc)
Creators: name: Nami, Mustapha
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
frühgeschichtlichen Megalithgräber Tunesiens
Creators: name: Krauß, Raiko
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
Non-linear effects on the holographic free energy and thermodynamic geometry
Creators: name: Ghorai, Debabrata
name: Gangopadhyay, Sunandan
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 have analytically investigated the effects of non-linearity on the free energy and thermodynamic geometry of holographic superconductors in $2+1 -$dimensions. The non-linear effect is introduced by considering the coupling of the massive charged scalar field with Born-Infeld electrodynamics. We then calculate the relation between critical temperature and charge density from two different methods, namely, the matching method and the divergence of the scalar curvature which is obtained by investigating the thermodynamic geometry of the model. The two results are slightly different from numerical values but the effects of non-linearity gets captured in our analysis.
description: 11 pages Latex, some corrections made in the manuscript
Vertical alignment of stagnation points in pseudo-plane ideal flows
Creators: name: Sun, Che
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Recent studies of pseudo-plane ideal flow (PIF) reveal a ubiquitous presence of vortex alignment in both homogeneous and stratified fluids, and in both inertial and rotating reference frames as well. The exact solutions of a steady-state PIF model suggest that stagnation points tend to be vertically aligned and the concentric structure represents a fixed-point phenomenon of the Euler equations. Exception occurs in the rotating frame when a flow holds inertial period and skew center becomes possible. Properties of stagnation points based on Morse theory are obtained, leading to a topological explanation of vertical alignment via pressure Hessian. The study thus uncovers a new aspect of vortex behavior in ideal fluid that requires vortex center to align with the direction of gravity when vortex evolution reaches a laminar end state characterized by steady pseudo-plane velocities. Though the phenomenon arises from the constraint of the Euler equations, under specific conditions the topological theory is applicable to viscous fluid and explains the curvilinear tilting of von Kármán swirling vortex.
description: 30 pages, 2 figure, 4 tables
Der Mineralstickstoffgehalt des Bodens als Maßstab für den Stickstoffdüngerbedarf : Entwicklung und Überprüfung eines Verfahres zur N-Düngerbedarfsprognose am Beispiel von Winterweizen
Creators: name: Scharpf, Hans-Christof
Publisher: name: Hannover : Technische Universität
Year: 1977
Subjects: subject: Stickstoffdünger
subject: Mineralboden
subject: Düngebedürfnis
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract available]
New studies on Marandet (Central Niger) and its trade connections: an interim report
Creators: name: Magnavita, Sonja
name: Maga, Abdoulaye
name: Magnavita, Carlos
name: Idé, Oumarou A.
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
aktuelle Forschungsstand zum Großen Damm von Marib, Jemen, nach der Winterkampagne 2005/2006
Creators: name: Vogt, Burkhard
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: Der Artikel wird zeitnah als PDF verfügbar sein.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
Measuring What Matters: Open to Interpretation?
Creators: name: Kramer, Bianca
Publisher: name: Zenodo
Year: 2022
Subjects: bibliometrics

description: Keynote address. In this presentation, Bianca Kramer addresses several aspects of openness in research assessment, as well as developments that either facilitate or limit that openness. This ranges from the freedom researchers, institutions and funders have to decide what is important in assessment, to the availability of data, infrastructure and services to make such assessments possible. Measuring what matters, and how to do that, is open to interpretation – and there are important choices to make!
On Maximum-a-Posteriori estimation with Plug & Play priors and stochastic gradient descent
Creators: name: Laumont, Rémi
name: de Bortoli, Valentin
name: Almansa, Andrés
name: Delon, Julie
name: Durmus, Alain
name: Pereyra, Marcelo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (stat.ML)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: 65K10 (Primary) 65K05, 62F15, 62C10, 68Q25, 68U10, 90C26 (Secondary) 65K10, 65K05, 62F15, 62C10, 68Q25, 68U10, 90C26

description: Bayesian methods to solve imaging inverse problems usually combine an explicit data likelihood function with a prior distribution that explicitly models expected properties of the solution. Many kinds of priors have been explored in the literature, from simple ones expressing local properties to more involved ones exploiting image redundancy at a non-local scale. In a departure from explicit modelling, several recent works have proposed and studied the use of implicit priors defined by an image denoising algorithm. This approach, commonly known as Plug & Play (PnP) regularisation, can deliver remarkably accurate results, particularly when combined with state-of-the-art denoisers based on convolutional neural networks. However, the theoretical analysis of PnP Bayesian models and algorithms is difficult and works on the topic often rely on unrealistic assumptions on the properties of the image denoiser. This papers studies maximum-a-posteriori (MAP) estimation for Bayesian models with PnP priors. We first consider questions related to existence, stability and well-posedness, and then present a convergence proof for MAP computation by PnP stochastic gradient descent (PnP-SGD) under realistic assumptions on the denoiser used. We report a range of imaging experiments demonstrating PnP-SGD as well as comparisons with other PnP schemes.
Large 21 cm signals from AGN-dominated reionization
Creators: name: Kulkarni, Girish
name: Choudhury, Tirthankar Roy
name: Puchwein, Ewald
name: Haehnelt, Martin G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present here predictions for the spatial distribution of 21 cm brightness temperature fluctuations from high-dynamic-range simulations for AGN-dominated reionization histories that have been tested against available Lyman-alpha and CMB data. We model AGN by extrapolating the observed M-sigma relation to high redshifts and assign them ionizing emissivities consistent with recent UV luminosity function measurements. We assess the observability of the predicted spatial 21 cm fluctuations by ongoing and upcoming experiments in the late stages of reionization in the limit in which the hydrogen 21 cm spin temperature is significantly larger than the CMB temperature. Our AGN-dominated reionization histories increase the variance of the 21 cm emission by a factor of up to ten compared to similar reionization histories dominated by faint galaxies, to values close to 100 mK^2 at scales accessible to experiments (k < 1 h/cMpc). This is lower than the sensitivity claimed to have been already reached by ongoing experiments by only a factor of about two or less. When reionization is dominated by AGN, the 21 cm power spectrum is enhanced on all scales due to the enhanced bias of the clustering of the more massive haloes and the peak in the large scale 21 cm power is strongly enhanced and moved to larger scales due to bigger characteristic bubble sizes. AGN dominated reionization should be easily detectable by LOFAR (and later HERA and SKA1) at their design sensitivity, assuming successful foreground subtraction and instrument calibration. Conversely, these could become the first non-trivial reionization scenarios to be ruled out by 21 cm experiments, thereby constraining the contribution of AGN to reionization.
description: Matches version accepted for publication in MNRAS
Śafār, capital of Himyar, Fifth Preliminary Report, February-March 2005.
Creators: name: Yule, Paul
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
Ten rock-shelter inscriptions from Ruhuna, southern Sri Lanka
Creators: name: Falk, Harry
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
Parthian glazed pottery from Sri Lanka and the Indian Ocean trade
Creators: name: Schenk, Heidrun
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
idea of civilization in ancient Indian literature and South Asian archaeology
Creators: name: Eltsov, Peter A.
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 2 (2007): Zeitschrift für Archäologie Außereuropäischer Kulturen
Estudio antropológico de los huesos humanos del sitio Bella Vista, Prov. Iténez, Bolivia
Creators: name: Wahl, Joachim
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen
Algunas tumbas prehispánicas de Bella Vista, Prov. Iténez, Bolivia
Creators: name: Prümers, Heiko
name: Jaimes Betancourt, Carla
name: Plaza Martinez, Ruden
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen
The Openpipeflow Navier--Stokes Solver
Creators: name: Willis, Ashley P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Pipelines are used in a huge range of industrial processes involving fluids, and the ability to accurately predict properties of the flow through a pipe is of fundamental engineering importance. Armed with parallel MPI, Arnoldi and Newton--Krylov solvers, the Openpipeflow code can be used in a range of settings, from large-scale simulation of highly turbulent flow, to the detailed analysis of nonlinear invariant solutions (equilibria and periodic orbits) and their influence on the dynamics of the flow.
description: 5 pages, 4 figures
Developing Practices that Matter - from Local to Global
Creators: name: Bullingham, Liam
name: Ma, Lai
name: Pallares Delgado, Cesar Orlando
name: Robinson, Julia
name: Watson-Cook, Aimee
Publisher: name: Zenodo
Year: 2022
Subjects: bibliometrics

description: Panel discussion Chair: Liam Bullingham, LIS-Bibliometrics Committee Our panellists (Julia Robinson & Aimee Watson-Cook, Newcastle University, UK; Cesar Orlando Pallares Delgado, Colombian Association of Research Managers (COREMA); Lai Ma, University College Dublin) will each share a different perspective for five minutes – a community of practice for connecting and sharing information at a UK university, a national association comprised of different organisatons using responsible metrics as a conceptual source, and an approach to equality, diversity and inclusion and research culture.
A fiber-coupled diamond quantum nanophotonic interface
Creators: name: Burek, Michael J.
name: Meuwly, Charles
name: Evans, Ruffin E.
name: Bhaskar, Mihir K.
name: Sipahigil, Alp
name: Meesala, Srujan
name: Sukachev, Denis D.
name: Nguyen, Christian T.
name: Pacheco, Jose L.
name: Bielejec, Edward
name: Lukin, Mikhail D.
name: Lončar, Marko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Color centers in diamond provide a promising platform for quantum optics in the solid state, with coherent optical transitions and long-lived electron and nuclear spins. Building upon recent demonstrations of nanophotonic waveguides and optical cavities in single-crystal diamond, we now demonstrate on-chip diamond nanophotonics with a high efficiency fiber-optical interface, achieving > 90% power coupling at visible wavelengths. We use this approach to demonstrate a bright source of narrowband single photons, based on a silicon-vacancy color center embedded within a waveguide-coupled diamond photonic crystal cavity. Our fiber-coupled diamond quantum nanophotonic interface results in a high flux of coherent single photons into a single mode fiber, enabling new possibilities for realizing quantum networks that interface multiple emitters, both on-chip and separated by long distances.
Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. VI. Age and abundance structure of the stellar populations in the central sub-kpc of the Milky Way
Creators: name: Bensby, T.
name: Feltzing, S.
name: Gould, A.
name: Yee, J. C.
name: Johnson, J. A.
name: Asplund, M.
name: Meléndez, J.
name: Lucatello, S.
name: Howes, L. M.
name: McWilliam, A.
name: Udalski, A.
name: Szymański, M. K.
name: Soszyński, I.
name: Poleski, R.
name: Wyrzykowski, Ł.
name: Ulaczyk, K.
name: Kozłowski, S.
name: Pietrukowicz, P.
name: Skowron, J.
name: Mróz, P.
name: Pawlak, M.
name: Abe, F.
name: Asakura, Y.
name: Bhattacharya, A.
name: Bond, I. A.
name: Bennett, D. P.
name: Hirao, Y.
name: Nagakane, M.
name: Koshimoto, N.
name: Sumi, T.
name: Suzuki, D.
name: Tristram, P. J.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a detailed elemental abundance study of 90 F and G dwarf, turn-off and subgiant stars in the Galactic bulge. Based on high-resolution spectra acquired during gravitational microlensing events, stellar ages and abundances for 11 elements (Na, Mg, Al, Si, Ca, Ti, Cr, Fe, Zn, Y and Ba) have been determined. We find that the Galactic bulge has a wide metallicity distribution with significant peaks at [Fe/H]=-1.09, -0.63, -0.20, +0.12, +0.41. We also find a high fraction of intermediate-age to young stars: at [Fe/H]>0 more than 35 % are younger than 8 Gyr. For [Fe/H]
description: Accepted for publication in A&A
Quantum-corrected geometry of horizon vicinity
Creators: name: Park, I. Y.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the deformation of the horizon-vicinity geometry caused by quantum gravitational effects. Departure from the semi-classical picture is noted, and the fact that the matter part of the action comes at a higher order in Newton's constant than does the Einstein-Hilbert term is crucial for the departure. The analysis leads to a Firewall-type energy measured by an infalling observer for which quantum generation of the cosmological constant is critical. The analysis seems to suggest that the Firewall should be a part of such deformation and that the information be stored both in the horizon-vicinity and asymptotic boundary region. We also examine the behavior near the cosmological horizon.
description: 31 pages, 1 figure, refs added, version to appear in Fortschritte der Physik
title: Collectively Improve the Quality of Life at Work: How and Which Data to Collect and Analyze?
Creators: name: Bossen, Claus
name: Chassot, Christophe
name: Datchary, Caroline
name: Grosjean, Sylvie
name: Guha, Shion
name: Lewkowicz, Myriam
name: Medjiah, Samir
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: The European Union announced recently that Europe should be a global hub and leader in the development of Artifcial Intelligence (AI) that guarantees safety and fundamental rights (European Commission (2021)). In this workshop, we investigate how we can approach this challenge from the perspective of Computer-Supported Cooperative Work (CSCW). Starting with a general conceptual focus on algorithmic systems and their increasing role in society, we are particularly interested in such systems in and as organisations, and the questions that come up when investigating them as part of complex, cooperative work practices. The full-day workshop, designed for up to 20 participants, advances a CSCW-perspective on algorithmic/AI systems by bringing together researchers within (and where possible beyond) the CSCW community who study algorithmic systems, with the aim of sharing ongoing research and connecting participants with others who share their research interests.
Neural Decomposition of Time-Series Data for Effective Generalization
Creators: name: Godfrey, Luke B.
name: Gashler, Michael S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: We present a neural network technique for the analysis and extrapolation of time-series data called Neural Decomposition (ND). Units with a sinusoidal activation function are used to perform a Fourier-like decomposition of training samples into a sum of sinusoids, augmented by units with nonperiodic activation functions to capture linear trends and other nonperiodic components. We show how careful weight initialization can be combined with regularization to form a simple model that generalizes well. Our method generalizes effectively on the Mackey-Glass series, a dataset of unemployment rates as reported by the U.S. Department of Labor Statistics, a time-series of monthly international airline passengers, the monthly ozone concentration in downtown Los Angeles, and an unevenly sampled time-series of oxygen isotope measurements from a cave in north India. We find that ND outperforms popular time-series forecasting techniques including LSTM, echo state networks, ARIMA, SARIMA, SVR with a radial basis function, and Gashler and Ashmore's model.
description: 13 pages, 11 figures, IEEE TNNLS Preprint
title: Spatial tensions in CSCW: The political and ethical challenges of scale
Creators: name: Lampinen, Airi
name: Rossitto, Chiara
name: Abbing, Roel Roscam
name: Light, Ann
name: Fedosov, Anton
name: Ciolfi, Luigina
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: Activists of all generations unite! With the same goals, we are designing an alternative to Greta Thunberg's "Fridays for Future". While this movement is largely age-homogeneous, accuses its parents' generation, and relies on renunciation as a solution, we demand intergenerational cooperation, bracket moral arguments, believe in the power of innovation and make dialogue qua digital media strong. Our project is provocative and playful, as an opportunity to reflect on the ecologically and politically complex problem we are addressing today. As a result, we will present the name of the (fictitious) new alliance, its program, a manifesto, a flag, an anthem, a "key visual", posters, flyers, banners a strategy for the (digital) dialogue as well as the "pro's and con's" of the dogmas.
Recuay Tradition Sculptures of Chinchawas, North Highlands of Ancash, Peru
Creators: name: Lau, George F.
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen
title: Implementing Electronic Health Records – Cases, Concepts, Questions
Creators: name: Hertzum, Morten
name: Randell, Rebecca
name: Ellingsen, Gunnar
name: Grisot, Miria
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: Learning is inherently social. This raises several questions that relate to how contexts and spaces can mediate co-creative learning. In this workshop proposal, we refer to the interrelated aspects of space, learning, and embodiment and how these aspects mediate the human-robot interaction. Our assumption is that robots are interpreted variously and used in different ways. We are interested in the interrelation between interpretation and use, which are constitutive for the establishment of different co-creative learning spaces. Reflecting on this leads to an understanding of what to look for in Participatory Design studies. It matters, for example, whether persons in a nursing home have any say at all in how robots are perceived and in what technical practices robots are to be integrated and adopted. This is a crucial aspect for the appropriation of technical artifacts and for the development of new (E)CSCW or HCI paradigms.
Perverse sheaves, nilpotent Hessenberg varieties, and the modular law
Creators: name: Precup, Martha
name: Sommers, Eric
Publisher: name: arXiv
Year: 2022
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We consider generalizations of the Springer resolution of the nilpotent cone of a simple Lie algebra by replacing the cotangent bundle with certain other vector bundles over the flag variety. We show that the analogue of the Springer sheaf has as direct summands only intersection cohomology sheaves that arise in the Springer correspondence. The fibers of these general maps are nilpotent Hessenberg varieties, and we build on techniques established by De Concini, Lusztig, and Procesi to study their geometry. For example, we show that these fibers have vanishing cohomology in odd degrees. This leads to several implications for the dual picture, where we consider maps that generalize the Grothendieck-Springer resolution of the whole Lie algebra. In particular we are able to prove a conjecture of Brosnan.
 As we vary the maps, the cohomology of the corresponding nilpotent Hessenberg varieties often satisfy a relation we call the geometric modular law, which also has origins in the work on De Concini, Lusztig, and Procesi. We connect this relation in type $A$ with a combinatorial modular law defined by Guay-Paquet that is satisfied by certain symmetric functions and deduce some consequences of that connection.
description: 27 pages. Minor updates and journal info
title: The digital public encounter
Creators: name: Schmidt, Michaela
name: Farshchian, Babak A.
name: Hofmann, Sara
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: AI (artificial intelligence) systems are increasingly being used in all aspects of our lives, from mundane routines to sensitive decision-making and even creative tasks. Therefore, an appropriate level of trust is required so that users know when to rely on the system and when to override it. While research has looked extensively at fostering trust in human-AI interactions, the lack of standardized procedures for human-AI trust makes it difficult to interpret results and compare across studies. As a result, the fundamental understanding of trust between humans and AI remains fragmented. This workshop invites researchers to revisit existing approaches and work toward a standardized framework for studying AI trust to answer the open questions: (1) What does trust mean between humans and AI in different contexts? (2) How can we create and convey the calibrated level of trust in interactions with AI? And (3) How can we develop a standardized framework to address new challenges?
Dating and Historical Value of Rouletted Ware
Creators: name: Schenk, Heidrun
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen
Preservation of product structures under the Ricci flow with instantaneous curvature bounds
Creators: name: Cook, Mary
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this note, we prove that there exists a constant $ε>0$, depending only on the dimension, such that if a complete solution to the Ricci flow splits as a product at time $t=0$ and has curvature bounded by $\fracε{t}$, then the solution splits for all time.
Faunal Remains from Phum Snay, Banteay Meanchey, Cambodia
Creators: name: Von Den Driesch, Angela
name: O’Reilly, Dougald J. W.
name: Voeun, Vuthy
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen
Counterexamples to conjectures about Subset Takeaway and counting linear extensions of a Boolean lattice
Creators: name: Brouwer, Andries E.
name: Christensen, J. Daniel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 91A46, 06A07

description: We develop an algorithm for efficiently computing recursively defined functions on posets. We illustrate this algorithm by disproving conjectures about the game Subset Takeaway (Chomp on a hypercube) and computing the number of linear extensions of the lattice of a 7-cube and related lattices.
description: 5 pages. v2 has improvements throughout and is to appear in Order
Differences in the attitudes and beliefs about science of students in the physics-mathematics and life sciences areas and their impact on teaching
Creators: name: Suarez, Alvaro
name: Baccino, Daniel
name: Monteiro, Martin
name: Marti, Arturo C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: For this study, we compared the attitudes and beliefs about science of physical science (physics and mathematics) and life science (biochemistry and biology) students at the beginning of their university degrees using the CLASS (Colorado Learning Attitudes about Science Survey) tool. It is worth noting that both groups of students received similar physics courses during their high-school education. Through a detailed analysis of the different categories of the test, we examined the differences in performance in each of the areas that make up the questionnaire. Among other aspects, we found that a considerable percentage of life science students (higher than that of physical science students) adopted a novice type of behavior in problem solving. Finally, we discussed the possible causes of the differences found and their implications for teaching.
description: 6 pages, 3 tables
title: The Ecological Underpinnings and Future Contributions of (E)CSCW
Creators: name: Light, Ann
name: Rossitto, Chiara
name: Lampinen, Airi
name: Botero, Andrea
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: When times change rapidly, the transformations around us ask us to consider whether our practices of research and scholarship are keeping abreast. Multiple crises are bearing down on us and only a change in Global North lifestyles and values will begin to address the world’s course towards major catastrophe. In this highly interactive panel, we unravel the ecological underpinnings of (E)CSCW to understand how it could contribute more fully to different sustainabilities and alternative futures. We consider (E)CSCW to offer a strength in its practice-oriented roots and its ecological understanding of socio-technical relations. We revisit these qualities in light of the need to embrace interdependence in all aspects of life and invite others to think with us about possible futures and the contributions (E)CSCW scholarship is poised to make in working toward them.
Impact of In-text Citations on Journal Rankings
Creators: name: Rosati, Domenic
name: Mongeon, Philippe
Publisher: name: Zenodo
Year: 2022
Subjects: bibliometrics

description: Traditional citations are links between publications that lack context. In-text citations measure how many times a publication was cited in text providing additional context on how much that publication was used.
 How would ranking change if in-text citations were used?
First Documentary Evidence for Qara Qorum from the Year 635/1237–8
Creators: name: Heidemann, Stefan
name: Kelzenberg, Hendrik
name: Erdenebat, Ulambayar
name: Pohl, Ernst
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: The article will be available as a PDF in the near future.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen
Some remarks on 'superradiant' phase transitions in light-matter systems
Creators: name: Larson, Jonas
name: Irish, Elinor K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this paper we analyze properties of the phase transition that appears in a set of quantum optical models; Dicke, Tavis-Cummings, quantum Rabi, and finally the Jaynes-Cummings model. As the light-matter coupling is increased into the deep strong coupling regime, the ground state turns from vacuum to become a superradiant state characterized by both atomic and photonic excitations. It is pointed out that all four transitions are of the mean-field type, that quantum fluctuations are negligible, and hence these fluctuations cannot be responsible for the corresponding vacuum instability. In this respect, these are not quantum phase transitions. In the case of the Tavis-Cummings and Jaynes-Cummings models, the continuous symmetry of these models implies that quantum fluctuations are not only negligible, but strictly zero. However, all models possess a non-analyticity in the ground state in agreement with a continuous quantum phase transition. As such, it is a matter of taste whether the transitions should be termed quantum or not. In addition, we also consider the modifications of the transitions when photon losses are present. For the Dicke and Rabi models these non-equilibrium steady states remain critical, while the criticality for the open Tavis-Cummings and Jaynes-Cummings models is completely lost, i.e. in realistic settings one cannot expect a true critical behaviour for the two last models.
description: 25 pages (single column), 6 figures
title: Experimenting with Ethnography: Making Time-Space for Analysis
Creators: name: Winthereik, Brit Ross
Publisher: name: European Society for Socially Embedded Technologies (EUSSET)
Year: 2023

description: In this master class you will experiment with the concept ‘object exchange’ as described and developed in (Korsby & Stavrianakis, 2021). As preparation you will bring an object from your field of study. It can be anything from your field, an image, a recorded sound bite, a diary, a transcript, but also a smell or. as long as it has a physical form. Prior to the workshop you must also read read the Introduction to Experimenting with Ethnography: A companion to analysis (2021) Analysis as Experimental Practice. (Ballestero & Winthereik, 2021: 1-14) and Object Exchange (Korsby & Stavrianakis, 2021: 82-93).
Hexavalent chromium scavenging performances of one-pot synthesized hydrous cerium-copper-mixed oxide from contaminated water with plausible mechanism
Creators: name: Ghosh, Ayan
name: Kanrar, Sarat
name: Srivastava, Ankur
name: Pandey, Mrituanjay D.
name: Ghosh, Uday Chand
name: Sasikumar, Palani
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences

description: Prolonged use of the chromate [Cr(VI)]-contaminated water originates severe health problems for the public. Thus, the societal urgency is a reusable and cost-effective material for efficient scavenging of Cr(VI) from contaminated industrial wastewater. Aiming this, we had targeted to prepare some cheap and effective materials for scavenging Cr(VI) from the contaminated water. Herein, we report the preparation of hydrous cerium-copper oxide (HCCO) with some tailored compositions and employed toward the abstraction of chromate from water solution. The HCCO (Ce: Cu = 1:4, mole/mole) has shown the highest Cr(VI) scavenging capacity. Experimentally, highest Cr(VI) abstraction efficiency is recorded at pH ~ 3.0 (508.853 mg. g−1 at 303 K). Kinetically, the Cr(VI) scavenging reaction with HCCO surfaces agrees better with the pseudo second-order model (R2 = 0.987) equation and the equilibrium Cr(VI) distribution data explain the Freundlich isotherm model (R2 = 0.998) equation, which anticipates the multi-layered adsorption on heterogeneous sites of the adsorbent. A negative value of the Gibbs free energy change indicates that the Cr(VI) adsorption over HCCO surfaces is spontaneous. The positive enthalpy change indicates the endothermic nature of the said reaction. One-pot synthesis of hydrous Ce(IV)-Cu(II) oxide (HCCO) and characterizations. Systematic Cr(VI) scavenging from modeled ground water with HCCO. Best fit pseudo-second-order kinetic model, implying the chemisorption mechanism. Very high amount of Cr(VI) scavenging at ambient condition reported to be 508.85 mg.g−1. Coulombic interaction between HCCO and Cr(VI) is responsible for scavenging Cr(VI).
Blauweiße chinesische Importkeramik aus Karakorum, Mongolei
Creators: name: Janssen-Kim, Melanie
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: Der Artikel wird zeitnah als PDF verfügbar sein.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen
Multi-component Fermionic Dark Matter and IceCube PeV scale Neutrinos in Left-Right Model with Gauge Unification
Creators: name: Borah, Debasish
name: Dasgupta, Arnab
name: Dey, Ujjal Kumar
name: Patra, Sudhanwa
name: Tomar, Gaurav
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider a simple extension of the minimal left-right symmetric model (LRSM) in order to explain the PeV neutrino events seen at the IceCube experiment from a heavy decaying dark matter. The dark matter sector is composed of two fermions: one at PeV scale and the other at TeV scale such that the heavier one can decay into the lighter one and two neutrinos. The gauge annihilation cross sections of PeV dark matter are not large enough to generate its relic abundance within the observed limit. We include a pair of real scalar triplets $Ω_{L,R}$ which can bring the thermally overproduced PeV dark matter abundance into the observed range through late time decay and consequent entropy release thereby providing a consistent way to obtain the correct relic abundance without violating the unitarity bound on dark matter mass. Another scalar field, a bitriplet under left-right gauge group is added to assist the heavier dark matter decay. The presence of an approximate global $U(1)_X$ symmetry can naturally explain the origin of tiny couplings required for long-lived nature of these decaying particles. We also show, how such an extended LRSM can be incorporated within a non-supersymmetric $SO(10)$ model where the gauge coupling unification at a very high scale naturally accommodate a PeV scale intermediate symmetry, required to explain the PeV events at IceCube.
description: 33 pages, 9 figures, 4 tables; error in relic density calculation fixed and discussion expanded for better clarity; matches published version
Blankwaffen des frühen Mittelalters in China (5.–10. Jahrhunderts n. Chr)
Creators: name: Koch, Alexander
Publisher: name: Zeitschrift für Archäologie Außereuropäischer Kulturen
Year: 2023

description: Der Artikel wird zeitnah als PDF verfügbar sein.
description: Zeitschrift für Archäologie Außereuropäischer Kulturen, Bd. 1 (2006): Zeitschrift für Archäologie Außereuropäischer Kulturen