cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$U(\frak h)$-free modules over the Lie algebras of differential operators
Creators: name: Dilxat, Munayim
name: Gao, Shoulan
name: Liu, Dong
name: Xia, Limeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Representation Theory (math.RT)
subject: Mathematical Physics (math-ph)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 17B10, 17B65, 17B68

description: In this paper, we consider some non-weight modules over the Lie algebra of Weyl type. First, we determine the modules whose restriction to $U(\frak h)$ are free of rank $1$ over the Lie algebra of differential operators on the circle. Then we determine the necessary and sufficient conditions for the tensor products of quasi-finite highest weight modules and $U(\frak h)$-free modules to be irreducible, and obtain that any two such tensor products are isomorphic if and only if the corresponding highest weight modules and $U(\frak h)$-free modules are isomorphic. Finally, we extend such results to the Lie algebras of differential operators in the general case.
description: Latex, 17 pages
Discussion on `Characterization of 1-3 piezoelectric polymer composites - a numerical and analytical evaluation procedure for thickness mode vibrations' by C.V. Madhusudhana Rao, G. Prasad, Condens. Matter Phys., 2010, Vol.13, No.1, 13703
Creators: name: Sun, Y.
name: Li, Z.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In the paper entitled "Characterization of 1-3 piezoelectric polymer composites - a numerical and analytical evaluation procedure for thickness mode vibrations", the dependence of the thickness electromechanical coupling coefficient on the aspect ratio of piezoceramic fibers is studied by finite element simulation for various volume fractions of piezoceramic fibers in a 1-3 composite. The accuracy of the results is questionable because the boundary condition claiming that `predefined displacements are applied perpendicularly on $C^+$ plane on all nodes' is not suitable for the analysis of 1-3 composite with comparatively large aspect ratio from 0.2 to 1. A discussion regarding this problem and the suggested corrections are presented in this paper.
description: 4 pages, 3 figures
Was it worth it?
Creators: name: Stokes, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: iPRES
iPRES outputs
Digital Preservation Publications Index

description: iPRES has been around for a while. It’s now 20 years since the first iPRES in Beijing and in that time we’ve seen a lot of people stand up in front of their peers and talk about digital preservation and closely related subjects. Close to 1200 contributions have been recorded in the published proceedings since that first event. My colleagues and I have been wondering for a while if we’ve made a difference to the world of Digital Preservation as a result. Within those 1200 or so contributions, were there ideas that have stood the test of time, become main stream. In short, was it all worth it?

Thanks to Andrew Jackson of the DPC (and in the nick of time for this poster) we can now link to all the conference proceedings in one place and we can play around with the data and underlying metadata! Hooray!

This poster shows an initial exploration and analysis of the outputs of the iPRES conferences with a view to undertaking a deeper analysis and paper for a future iPRES.
Leptogenesis and the Higgs Portal
Creators: name: Dall, Matthias Le
name: Ritz, Adam
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the impact on leptogenesis of Higgs portal couplings to a new scalar singlet. These couplings open up additional $CP$-violating decay channels for the higher mass singlet neutrinos $N_2$ and $N_3$. We analyze the simplest case of two-level $N_1-N_2$ leptogenesis, including significant mass hierarchies, in which the $CP$ asymmetry is generated in part by singlet-mediated decays of $N_2$. For these models, provided the lightest singlet neutrino $N_1$ is sufficiently weakly coupled to avoid excessive washout, its mass scale is not directly constrained by the Davidson-Ibarra bound.
description: 45 pages, 19 figures
Magnetization in AIIIBV semiconductor heterostructures with the depletion layer of manganese
Creators: name: Charikova, T.
name: Okulov, V.
name: Gubkin, A.
name: Lugovikh, A.
name: Moiseev, K.
name: Nevedomsky, V.
name: Kudriavstev, Yu.
name: Gallardo, S.
name: Lopez, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The magnetic moment and magnetization in GaAs/Ga$_{0.84}$In$_{0.16}$As/GaAs heterostructures with Mn deluted in GaAs cover layers and with atomically controlled Mn $δ$-layer thicknesses near GaInAs-quantum well ($\sim$3 nm) in temperature range T=(1.8-300)K in magnetic field up to 50 kOe have been investigated. The mass magnetization all of the samples of GaAs/Ga$_{0.84}$In$_{0.16}$As/GaAs with Mn increases with the increasing of the magnetic field that pointed out on the presence of low-dimensional ferromagnetism in the manganese depletion layer of GaAs based structures. It has been estimated the manganese content threshold at which the ferromagnetic ordering was found.
description: 8 pages, 3 figures
Accelerating Interactive Human-like Manipulation Learning with GPU-based Simulation and High-quality Demonstrations
Creators: name: Mosbach, Malte
name: Moraw, Kara
name: Behnke, Sven
Publisher: name: arXiv
Year: 2022
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Dexterous manipulation with anthropomorphic robot hands remains a challenging problem in robotics because of the high-dimensional state and action spaces and complex contacts. Nevertheless, skillful closed-loop manipulation is required to enable humanoid robots to operate in unstructured real-world environments. Reinforcement learning (RL) has traditionally imposed enormous interaction data requirements for optimizing such complex control problems. We introduce a new framework that leverages recent advances in GPU-based simulation along with the strength of imitation learning in guiding policy search towards promising behaviors to make RL training feasible in these domains. To this end, we present an immersive virtual reality teleoperation interface designed for interactive human-like manipulation on contact rich tasks and a suite of manipulation environments inspired by tasks of daily living. Finally, we demonstrate the complementary strengths of massively parallel RL and imitation learning, yielding robust and natural behaviors. Videos of trained policies, our source code, and the collected demonstration datasets are available at https://maltemosbach.github.io/interactive_ human_like_manipulation/.
Supplementary document for Unity-order magnetochiral effects exhibited by a single metamolecule - 6036129.pdf
Creators: name: Kurosawa, Hiroyuki
name: Tomita, Satoshi
name: Sawada, Kei
name: Nakanishi, Toshihiro
name: Ueda, Tetsuya
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplement 1
Tra narrazione biblica e performatività liturgica: il Planctus virginum Israel super filia Iepte Galadite di Abelardo
Creators: name: Pagani, Ileana
Publisher: name: Roma : Carocci
Year: 2013
Subjects: Abelard
Middle Ages
Bible

description: The Planctus virginum Israel super filia Iepte Galadite is the best known of six poems for music unanimously attributed to Abelard, generally known as the planctus. Reconsideration of some significant moments in the patristic and medieval Latin tradition of reworking and commentary of the biblical episode which is the subject of the planctus (Judges 10-12), reveals Abelard’s peculiar approach as a reflection of his view of feminine sanctity. Moreover, analysis of the planctus highlights the complexity of its structure: the story, framed by the mimesis of a commemorative liturgical celebration, unfolds partly in narrative, partly in dialogical form, constantly stressing its visual and dramatic dimension.
The Expanded Painting
Creators: name: Tarp, Lisbet
Publisher: name: International Journal for Digital Art History
Year: 2024

description: Digital reproductions of artifacts are utilized in an increasing range of professional work with cultural heritage. Because paintings are relatively easy to capture and transfer to the digital realm, an increasing number of them are now being photographed and made accessible in databases. However, as this article points out, paintings can be used as a point of departure for a wide range of digitally-based copies of their material and visual components, a phenomenon described as the visual culture of painting. By employing Greimas’ square, this article explores how computer-aided reproductions of paintings can be differentiated, distributed, and described according to their basic formal qualities from digital photography and analytical imaging to 3D-printed versions. The square also enables a description of formal features and outlines the limitations of each type of reproduction by placing painting in relation to its historical counterpart, sculpture. In this mapping, tensions between opposites appear, including the virtual versus the material, two- versus three-dimensionality, surface versus matter, and the multifaceted struggle to cope with invisible structures. These issues have been illustrated and negotiated for hundreds of years in the practice of making and appreciating paintings, but this article reframes them for the digital realm.
description: International Journal for Digital Art History, No. 6 (2021): Horizons of Mixed Realities
Quantum Computing for Data Centric Engineering and Science
Creators: name: Herbert, Steven
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this perspective I give my answer to the question of how quantum computing will impact on data-intensive applications in engineering and science. I focus on quantum Monte Carlo integration as a likely source of (relatively) near-term quantum advantage, but also discuss some other ideas that have garnered wide-spread interest.
description: 14 pages, 4 figures
Supplementary document for Color Balanced Transparent Luminescent Solar Concentrator Based on Polydimethylsiloxane Polymer Waveguide with Coexisting Polar and Non-Polar Fluorescent Dyes - 6040632.pdf
Creators: name: Lee, Chanyong
name: Cho, Hyobeen
name: Ko, Jongwon
name: Kim, Seungkyu
name: Ko, Yohan
name: Park, Seaeun
name: Kang, Yoonmook
name: Yun, Yong Ju
name: Jun, Yongseok
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplemental Document
Qualitative breakdown of the unrestricted Hartree-Fock energy
Creators: name: Mori-Sánchez, Paula
name: Cohen, Aron J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The stretching of closed-shell molecules is a qualitative problem for restricted Hartree-Fock that is usually circumvented by the use of unrestricted Hartree-Fock (UHF). UHF is well known to break the spin symmetry at the Coulson-Fischer point, leading to a discontinuous derivative in the potential energy surface and incorrect spin density. However, this is generally not considered as a major drawback. In this work, we present a set of two electron molecules which magnify the problem of symmetry breaking and lead to drastically incorrect potential energy surfaces with UHF. These molecules also fail with unrestricted density-functional calculations where a functional such as B3LYP gives both symmetry breaking and an unphysically low energy due to the delocalization error. The implications for density functional theory are also discussed.
Challenges in Research Software Training - survey results
Creators: name: Filinger, Weronika
name: Cohen, Jeremy
Publisher: name: Zenodo
Year: 2023
Subjects: training
RSE
FAIR
survey results
community

description: The data presented here was collected anonymously during the ISC'23 BoF session on "Understanding the Skills and Pathways Behind Research Software Training" via a live Mentimeter poll. The session was attended by approximately 70 people with up to 50 session participants responding interactively to the questions in the room (the questions could only be answered when displayed on the screen during the workshop session). There was no pre-registration for the session so we have no details of the profile of audience members or which of the participants in the room chose to respond to which questions. The session attendees were asked 9 questions, and the number of respondents and responses varied between questions, with 24 to 50 participants engaging and providing 32 to 59 replies. Questions were of two types, those requiring only a numeric score and those with the option for open-ended text responses. This file contains the anonymous data from this workshop session.
Daphni DOEPNER, "Große Statuetten" in Medma (Kalabrien). Zur Produktion und sakralen Verwendung von Terrakotten aus dem "Calderazzo-Depot" (basierend auf den Vorarbeiten von Peter Noelke)
Creators: name: Öhlinger, Birgit
name: Heitz, Christian
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2022

description: Rezension zu: Daphni Doepner, "Große Statuetten" in Medma (Kalabrien). Zur Produktion und sakralen Verwendung von Terrakotten aus dem "Calderazzo-Depot" (basierend auf den Vorarbeiten von Peter Noelke), Palilia 32. Wiesbaden: Harrassowitz Verlag 2020, XVI + 280 S., 152 Abb., EUR 58,00. ISBN: 978-3-447-11357-1
description: Göttinger Forum für Altertumswissenschaft, Bd. 25 Nr. 1 (2022): Göttinger Forum für Altertumswissenschaft
What is a Lithium-Ion Battery? (Introduction)
Creators: name: Office Of Research Experiences & Education
Publisher: name: UL Research Institutes
Year: 2024
Subjects: classificationCode: 400803
subject: Electrical energy generation (incl. renewables, excl. photovoltaics)
classificationCode: 400911
subject: Power electronics

description: Lithium-ion is the most popular rechargeable battery chemistry used today. Lithium-ion batteries consist of single or multiple lithium-ion cells and a protective circuit board. They are called batteries once the cell or cells are installed inside a device with the protective circuit board.
Three-dimensional reconstruction of type U radio bursts: a novel remote sensing approach for coronal loops
Creators: name: Mancuso, S.
name: Barghini, D.
name: Bemporad, A.
name: Telloni, D.
name: Gardiol, D.
name: Frassati, F.
name: Bizzarri, I.
name: Taricco, C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Type U radio bursts are impulsive coherent radio emissions produced by the Sun that indicate the presence of subrelativistic electron beams propagating along magnetic loops in the solar corona. In this work, we present the analysis of a type U radio burst that was exceptionally imaged on 2011 March 22 by the Nançay Radioheliograph (NRH) at three different frequencies (298.7, 327.0, and 360.8 MHz). Using a novel modelling approach, we show for the first time that the use of high-resolution radio heliograph images of type U radio bursts can be sufficient to both accurately reconstruct the 3D morphology of coronal loops (without recurring to triangulation techniques) and to fully constrain their physical parameters. At the same time, we can obtain unique information on the dynamics of the accelerated electron beams, which provides important clues as to the plasma mechanisms involved in their acceleration and as to why type U radio bursts are not observed as frequently as type III radio bursts. We finally present plausible explanations for a problematic aspect related to the apparent lack of association between the modeled loop as inferred from radio images and the extreme-ultraviolet (EUV) structures observed from space in the same coronal region
description: A&A, in press (8 pages, 6 figures)
Transport modelling and contaminant fate in unsaturated soils: analysis and perspectives
Creators: name: Stoppiello, Maria Grazia
Publisher: name: Universita degli studi di Salerno
Year: 2021
Subjects: subject: ICAR/07 GEOTECNICA
subject: Contaminant
subject: Transport Models
subject: Unsaturated flows

description: 2018 - 2019
description: In recent years, the contamination of groundwater has become a growing threat at global scale. The improper release of chemicals from numerous and different sources (landfills, leaking storage tanks, etc.) in the subsurface has largely affected the quality of the groundwater resources. Many of the fate and transport processes take place into the unsaturated zone posing a great concern in terms of groundwater protection. Because of that, many scientific studies on models for simulating contaminant transport in the unsaturated zone have been carried out. Application of these models to field scale is a challenging task because of several findings related to the involved processes and the hydrogeological characterization of the site. The present thesis seeks to contribute to this topic, identifying features and limitations of the existing tools and, thus, developing a modelling approach useful for engineering applications to contaminated sites. In particular, a quantitative comparison of selected analytical models has been developed, in order to identify features and limitations and highlight the differences in the outcomes of the different models. The comparison highlights a significant variability of the results with respect to the variation of the considered parameters. The analysis of the models makes it possible to identify three groups, according to the assumptions on contaminant source and chemical-physical mechanisms occurring during the transport. Each group appears suitable for a different contamination scenario. A modelling procedure based on a hindcasting simulation combining a steady-state flow model and a mass transport model has been proposed. Specifically, the objectives of the procedure are to reproduce the contaminant concentration measured in the aquifer within the site, to assess the contaminant concentration of the source and, based on that, to give some insights helping to the identification of the primary sources. The procedure has been applied to a significant case study: the Taranto site The developed modelling has been able to reproduce the measured contaminant concentrations in site and the obtained contamination scenarios have been found plausible and consistent with the solubility of the analysed contaminant. [edited by Author]
Iterative Posterior Inference for Bayesian Kriging
Creators: name: Zhang, Zepu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We propose a method for estimating the posterior distribution of a standard geostatistical model. After choosing the model formulation and specifying a prior, we use normal mixture densities to approximate the posterior distribution. The approximation is improved iteratively. Some difficulties in estimating the normal mixture densities, including determining tuning parameters concerning bandwidth and localization, are addressed. The method is applicable to other model formulations as long as all the parameters, or transforms thereof, are defined on the whole real line, $(-\infty, \infty)$. Ad hoc treatments in the posterior inference such as imposing bounds on an unbounded parameter or discretizing a continuous parameter are avoided. The method is illustrated by two examples, one using digital elevation data and the other using historical soil moisture data. The examples in particular examine convergence of the approximate posterior distributions in the iterations.
description: 18 pages, 6 figures
Unexpectedly Useful: Convergence Bounds And Real-World Distributed Learning
Creators: name: Malandrino, Francesco
name: Chiasserini, Carla Fabiana
Publisher: name: arXiv
Year: 2022
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Convergence bounds are one of the main tools to obtain information on the performance of a distributed machine learning task, before running the task itself. In this work, we perform a set of experiments to assess to which extent, and in which way, such bounds can predict and improve the performance of real-world distributed (namely, federated) learning tasks. We find that, as can be expected given the way they are obtained, bounds are quite loose and their relative magnitude reflects the training rather than the testing loss. More unexpectedly, we find that some of the quantities appearing in the bounds turn out to be very useful to identify the clients that are most likely to contribute to the learning process, without requiring the disclosure of any information about the quality or size of their datasets. This suggests that further research is warranted on the ways -- often counter-intuitive -- in which convergence bounds can be exploited to improve the performance of real-world distributed learning tasks.
Additional file 1 of A psycho-educational intervention programme for parents with SGA foetuses supported by an adaptive mHealth system: design, proof of concept and usability assessment
Creators: name: Balderas-Díaz, Sara
name: Rodríguez-Fórtiz, María José
name: Garrido, José Luis
name: Bellido-González, Mercedes
name: Guerrero-Contreras, Gabriel
Publisher: name: figshare
Year: 2022
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences

description: Additional file 1. This file contains the questionnaires developedand used for this intervention program, which were adapted from SUS,PSSUQ and TAM questionnaires [26, 28, 23]. Title of data:Questionnaires. Description of data: The questionnaires areassociated with each task so that parents can assess their learningprogress on general topics (healthcare, medical advice, foetusstimulation and emotion management) included on thepsycho-educational intervention programme.
Four-dimensional formulation of the sector-improved residue subtraction scheme
Creators: name: Czakon, M.
name: Heymes, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Four years ago, one of us introduced a novel subtraction scheme for the evaluation of double-real radiation contributions to cross sections at next-to-next-to-leading order (NNLO) in QCD. This approach, named SecToR Improved Phase sPacE for Real radiation (STRIPPER), has already found several non-trivial applications. In particular, it has allowed for the determination of NNLO corrections to hadronic top-quark pair production, fully differential top-quark decays, inclusive semileptonic charmless b-quark decays, associated Higgs boson and jet production in gluon fusion, muon decay spin asymmetry, and t-channel single-top production. Common to these calculations was the use of conventional dimensional regularization (CDR). In this publication, we present a complete formulation of the subtraction scheme for arbitrary processes with any number of colored partons in the final state, and up to two partons in the initial state. Furthermore, we modify the integrated subtraction terms of the double-real radiation to enable the introduction of the 't Hooft-Veltman version of dimensional regularization (HV), in which resolved states are four-dimensional. We demonstrate the correctness of our approach on the example of top-quark pair production in the gluon fusion channel.
description: 60 pages, 5 figures, 9 tables
Efficacité et ciblage optimal des paiements pour services écosystémiques
Creators: name: Voia, Anca
name: Voia, Anca
Publisher: name: Unknown
Year: 2022
Subjects: Environmental Economics and Policy

description: La lutte contre le changement climatique est l’un des défis les plus importants auxquels l’humanité est confrontée. Après la combustion des énergies fossiles, la déforestation et l’activité agricole sont les autres sources majeures de changement climatique. Pourtant, elles peuvent également constituer une partie importante de la solution grâce à des interventions de politique publique telles que des taxes, des subventions ou des réglementations visant à déclencher une séquestration supplémentaire du carbone. Nous nous intéressons ici aux programmes de paiements pour services écosystémiques (PSE) qui rétribuent les propriétaires fonciers volontaires pour qu’ils adoptent des pratiques visant à augmenter la séquestration du carbone. Ces programmes sont largement utilisés par les gouvernements du monde entier dans le cadre des politiques de développement et d’environnement. La question est de savoir si les PSE sont un moyen rentable de réduire les émissions de gaz à effet de serre et quelle est la conception optimale de ces programmes.
Deriving Large Coronal Magnetic Loop Parameters Using LOFAR J burst Observations
Creators: name: Zhang, Jinge
name: Reid, Hamish A. S.
name: Krupar, Vratislav
name: Zucca, Pietro
name: Dabrowski, Bartosz
name: Krankowski, Andrzej
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Large coronal loops around one solar radius in altitude are an important connection between the solar wind and the low solar corona. However, their plasma properties are ill-defined as standard X-ray and UV techniques are not suited to these low-density environments. Diagnostics from type J solar radio bursts at frequencies above 10 MHz are ideally suited to understand these coronal loops. Despite this, J-bursts are less frequently studied than their type III cousins, in part because the curvature of the coronal loop makes them unsuited for using standard coronal density models. We used LOw-Frequency-ARray (LOFAR) and Parker Solar Probe (PSP) solar radio dynamic spectrum to identify 27 type III bursts and 27 J-bursts during a solar radio noise storm observed on 10 April 2019. We found that their exciter velocities were similar, implying a common acceleration region that injects electrons along open and closed magnetic structures. We describe a novel technique to estimate the density model in coronal loops from J-burst dynamic spectra, finding typical loop apex altitudes around 1.3 solar radius. At this altitude, the average scale heights were 0.36 solar radius, the average temperature was around 1 MK, the average pressure was 0.7 mdyn cm$^{-2}$, and the average minimum magnetic field strength was 0.13 G. We discuss how these parameters compare with much smaller coronal loops.
Electronic Supporting Information 1 - Predicting Air-Water Partitioning of Oxyfluorfen Under California Rice Field Conditions
Creators: name: Bonnar, David
name: Tjeerdema, Ronald
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 460207
subject: Modelling and simulation
classificationCode: 340701
subject: Computational chemistry
classificationCode: 419999
subject: Other environmental sciences not elsewhere classified

description: This resource serves as Electronic Supporting Information for the Ph.D. dissertation chapter titled 'Predicting Air-Water Partitioning of Oxyfluorfen Under California Rice Field Conditions: An Approach for Broader Application' prepared by David J. Bonnar.

Electronic Supporting Information 1.xlsxExcel spreadsheet containing fully parametrized models, data, and results of the study.
Dynamics of an inelastic tagged particle under strong confinement
Creators: name: Maynar, P.
name: de Soria, M. I. García
name: Brey, J. Javier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The dynamics of a tagged particle immersed in a fluid of particles of the same size but different mass is studied when the system is confined between two hard parallel plates separated a distance smaller than twice the diameter of the particles. The collisions between particles are inelastic while the collisions of the particles with the hard walls inject energy in the direction perpendicular to the wall, so that stationary states can be reached in the long-time limit. The velocity distribution of the tagged particle verifies a Boltzmann-Lorentz-like equation that is solved assuming that it is a spatially homogeneous gaussian distribution with two different temperatures (one associated to the motion parallel to the wall and another associated to the perpendicular direction). It is found that the temperature perpendicular to the wall diverges when the tagged particle mass approaches a critical mass from below, while the parallel temperature remains finite. Molecular Dynamics simulation results agree very well with the theoretical predictions for tagged particle masses below the critical mass. The measurements of the velocity distribution function of the tagged particle confirm that it is gaussian if the mass is not close to the critical mass, while it deviates from gaussianity when approaching the critical mass. Above the critical mass, the velocity distribution function is very far from a gaussian, being the marginal distribution in the perpendicular direction bimodal and with a much larger variance than the one in the parallel direction.
Exact solutions of the Wheeler-DeWitt equation and the Yamabe construction
Creators: name: Ita, Eyo
name: Soo, Chopin
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Exact solutions of the Wheeler-DeWitt equation of the full theory of four dimensional gravity of Lorentzian signature are obtained. They are characterized by Schrödinger wavefunctionals having support on 3-metrics of constant spatial scalar curvature, and thus contain two full physical field degrees of freedom in accordance with the Yamabe construction. These solutions are moreover Gaussians of minimum uncertainty and they are naturally associated with a rigged Hilbert space. In addition, in the limit the regulator is removed, exact 3-dimensional diffeomorphism and local gauge invariance of the solutions are recovered.
description: 15 Pages
title: Einflussfaktoren auf die Erlebnisqualität von Veranstaltungen unter Pandemiebedingungen am Beispiel des Modellprojekts „Back to dance“
Creators: name: Lustig, Elisa
Publisher: name: Hochschule Hannover
Year: 2022
Subjects: subject: 300 Sozialwissenschaften
subject: 650 Management

description: Die vorliegende Arbeit befasst sich mit der Erlebnisqualität auf Open-Air-Tanzveranstaltungen unter Pandemiebedingungen. Um zu erforschen, welche Faktoren die Erwartungen der Teilnehmer:Innen von Events unter Pandemiebedingungen übertreffen und somit Begeisterung hervorrufen, wurden Befragungen mit Besucher:Innen des Modellprojekts "Back to dance" durchgeführt. Die Critical Incident Technik stellt den qualitativen Teil der Untersuchung dar, welche mit einer quantitativen Forschung unter Anwendung der Kano-Befragung kombiniert wird. Die Ergebnisse einer Forschungsgruppe der Leibniz-Universität Hannover, die ebenfalls Besucher:Innen derselben Veranstaltung befragte, ergänzen die Analyse. Im Rahmen der vorliegenden Arbeit wurde zunächst eine tiefgründige Literaturrecherche zu den Kernthemen Clubkultur, Dienstleistungs- und Erlebnisqualität sowie den angewendeten Methoden betrieben. Insgesamt wird aus den Untersuchungen deutlich, dass - nach langer Zeit der Abstinenz - schon allein die Möglichkeit, an einer Veranstaltung teilzunehmen, zu großer Zufriedenheit führt. Daher zeigen die Besucher:Innen bezüglich einschränkender Regelungen wie dem Tragen einer Mund-Nasen-Bedeckung, veränderter Veranstaltungszeit oder fehlendem Alkoholausschank eine hohe Kompromissbereitschaft.
Construction of Object Boundaries for the Autopilotof a Surface Robot from Satellite Imagesusing Computer Vision Methods
Creators: name: Grekov, Aleksandr N.
name: Shishkin, Yurii E.
name: Peliushenko, Sergei S.
name: Mavrin, Aleksandr S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: An algorithm and a program for detecting the boundaries of water bodies for the autopilot module of asurface robot are proposed. A method for detecting water objects on satellite maps by the method of finding a color in the HSV color space, using erosion, dilation - methods of digital image filtering is applied.The following operators for constructing contours on the image are investigated: the operators of Sobel,Roberts, Prewitt, and from them the one that detects the boundary more accurately is selected for thismodule. An algorithm for calculating the GPS coordinates of the contours is created. The proposed algorithm allows saving the result in a format suitable for the surface robot autopilot module.
description: 9 pages, 11 figures, 24 formulas
OGLE-BLG182.1.162852: An Eclipsing Binary with a Circumstellar Disk
Creators: name: Rattenbury, N. J.
name: Wyrzykowski, Ł.
name: Kostrzewa-Rutkowska, Z.
name: Udalski, A.
name: Kozłowski, S.
name: Szymański, M. K.
name: Pietrzyński, G.
name: Soszyński, I.
name: Poleski, R.
name: Ulaczyk, K.
name: Skowron, J.
name: Pietrukowicz, P.
name: Mróz, P.
name: Skowron, D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the discovery of a plausible disk-eclipse system OGLE-BLG182.1.162852. The OGLE light curve for OGLE-BLG182.1.162852 shows three episodes of dimming by $I \simeq 2 - 3$ magnitudes, separated by 1277 days. The shape of the light curve during dimming events is very similar to that of known disk eclipse system OGLE-LMC-ECL-11893 (Dong et al. 2014). The event is presently undergoing a dimming event, predicted to end on December 30th, 2014. We encourage spectroscopic and multi-band photometric observations now. The next dimming episode for OGLE-BLG182.1.162852 is expected to occur in March 2018.
description: 4 pages, 4 figures, submitted to MNRAS Letters
The Gould's Belt Very Large Array Survey III. The Orion region
Creators: name: Kounkel, Marina
name: Hartmann, Lee
name: Loinard, Laurent
name: Mioduszewski, Amy J.
name: Dzib, Sergio A.
name: Ortiz-León, Gisela N.
name: Rodríguez, Luis F.
name: Pech, Gerardo
name: Rivera, Juana L.
name: Torres, Rosa M.
name: Boden, Andrew F.
name: Evans, Neal J. II
name: Briceño, Cesar
name: Tobin, John
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present results from a high-sensitivity (60 $μ$Jy), large-scale (2.26 square degree) survey obtained with the Karl G. Jansky Very Large Array as part of the Gould's Belt Survey program. We detected 374 and 354 sources at 4.5 and 7.5 GHz, respectively. Of these, 148 are associated with previously known Young Stellar Objects (YSOs). Another 86 sources previously unclassified at either optical or infrared wavelengths exhibit radio properties that are consistent with those of young stars. The overall properties of our sources at radio wavelengths such as their variability and radio to X-ray luminosity relation are consistent with previous results from the Gould's Belt Survey. Our detections provide target lists for followup VLBA radio observations to determine their distances as YSOs are located in regions of high nebulosity and extinction, making it difficult to measure optical parallaxes.
description: Accepted for publication in ApJ; 51 pages, 15 figures, 5 tables
Explanation of Y(4630) as hadronic resonant state
Creators: name: Mei, Xiao-Hui
name: Yu, Zhuo
name: Song, Mao
name: Guo, Jian-You
name: Li, Gang
name: Luo, Xuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: After Y(4630) is discovered, theorists have given various explanations. We find that if Y(4630) is interpreted as the D-wave resonant state of $Λ_c \bar Λ_c$ system, the particle mass, decay width and all quantum numbers are consistent with experimental observations. We use the Bonn approximation to get the interaction potential of one boson exchange model, then extend the complex scaling method (CSM) to calculate the bound and resonant states. The results indicate that the $Λ_c \barΛ_c$ system can form not only the bound state of S wave, but also the resonant state of the high angular momentum, and the $^3D_1$ wave resonant state can explain the structure of Y(4630) very well.
description: 8 pages, 9 figures, accepted by Chinese Physics C
Charge transport in ion-gated mono-, bi-, and trilayer MoS2 field effect transistors
Creators: name: Chu, Leiqiang
name: Schmidt, Hennrik
name: Pu, Jiang
name: Wang, Shunfeng
name: Özyilmaz, Barbaros
name: Takenobu, Taishi
name: Eda, Goki
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Charge transport in MoS2 in the low carrier density regime is dominated by trap states and band edge disorder. The intrinsic transport properties of MoS2 emerge in the high density regime where conduction occurs via extended states. Here, we investigate the transport properties of mechanically exfoliated mono-, bi-, and trilayer MoS2 sheets over a wide range of carrier densities realized by a combination of ion gel top gate and SiO2 back gate which allows us to achieve high charge carrier (>10^13) density. We discuss the gating properties of the devices as a function of layer thickness and demonstrate resistivities of as low as 1 kΩ for monolayer and 420Ω for bilayer devices at 10 K. We show that from the capacitive coupling of the two gates, quantum capacitance can be roughly estimated to be on the order of 1 μF/cm^2 for all devices studied. Temperature dependence of the carrier mobility in the high density regime indicates that short-range scatterers limit charge transport at low temperatures.
description: 25 pages
CONCERTO: Simulating the CO, [CII], and [CI] line emission of galaxies in a 117 $\rm deg^2$ field and the impact of field-to-field variance
Creators: name: Gkogkou, A.
name: Béthermin, M.
name: Lagache, G.
name: Van Cuyck, M.
name: Jullo, E.
name: Aravena, M.
name: Beelen, A.
name: Benoit, A.
name: Bounmy, J.
name: Calvo, M.
name: Catalano, A.
name: Cora, S.
name: Croton, D.
name: de la Torre, S.
name: Fasano, A.
name: Ferrara, A.
name: Goupy, J.
name: Hoarau, C.
name: Hu, W.
name: Ishiyama, T.
name: Knudsen, K. K.
name: Lambert, J. -C.
name: Macías-Pérez, J. F.
name: Marpaud, J.
name: Mellema, G.
name: Monfardini, A.
name: Pallottini, A.
name: Ponthieu, N.
name: Prada, F.
name: Roehlly, Y.
name: Vallini, L.
name: Walter, F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the submm regime, spectral line scans and line intensity mapping (LIM) are new promising probes for the cold gas content and star formation rate of galaxies across cosmic time. However, both of these two measurements suffer from field-to-field variance. We study the effect of field-to-field variance on the predicted CO and [CII] power spectra from future LIM experiments such as CONCERTO, as well as on the line luminosity functions (LFs) and the cosmic molecular gas mass density that are currently derived from spectral line scans. We combined a 117 $\rm deg^2$ dark matter lightcone from the Uchuu cosmological simulation with the simulated infrared dusty extragalactic sky (SIDES) approach. We find that in order to constrain the CO LF with an uncertainty below 20%, we need survey sizes of at least 0.1 $\rm deg^2$. Furthermore, accounting for the field-to-field variance using only the Poisson variance can underestimate the total variance by up to 80%. The lower the luminosity is and the larger the survey size is, the higher the level of underestimate. At $z$<3, the impact of field-to-field variance on the cosmic molecular gas density can be as high as 40% for the 4.6 arcmin$^2$ field, but drops below 10% for areas larger than 0.2 deg$^2$. However, at $z>3$ the variance decreases more slowly with survey size and for example drops below 10% for 1 deg$^2$ fields. Finally, we find that the CO and [CII] LIM power spectra can vary by up to 50% in $\rm 1 deg^2$ fields. This limits the accuracy of the constraints provided by the first 1 deg$^2$ surveys. The level of the shot noise power is always dominated by the sources that are just below the detection thresholds. We provide an analytical formula to estimate the field-to-field variance of current or future LIM experiments. The code and the full SIDES-Uchuu products (catalogs, cubes, and maps) are publicly available.
High-efficiency WSi superconducting nanowire single-photon detectors operating at 2.5 K
Creators: name: Verma, V. B.
name: Korzh, B.
name: Bussières, F.
name: Horansky, R. D.
name: Lita, A. E.
name: Marsili, F.
name: Shaw, M. D.
name: Zbinden, H.
name: Mirin, R. P.
name: Nam, S. W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the operation of WSi superconducting nanowire single-photon detectors (SNSPDs) at 2.5 K, a temperature which is ~ 70 % of the superconducting transition temperature (TC) of 3.4 K. We demonstrate saturation of the system detection efficiency at 78 +- 2 % with a jitter of 191 ps. We find that the jitter at 2.5 K is limited by the noise of the readout, and can be improved through the use of cryogenic amplifiers. Operation of SNSPDs with high efficiency at temperatures very close to TC appears to be a unique property of amorphous WSi.
Research on Early Warning and NB-IoT Real-time Monitoring System for Radiation Source Shedding of Gamma Flaw Detection Machine
Creators: name: Zhang, Zheng-yang
name: Liu, Zhi-hui
name: Zhang, Rui
name: He, Rong-hua
name: Wang, Zhe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The system takes the embedded system single chip as the core, and organizes the gamma ray induction module, keying switch, radiation source braid locking mechanism, on-site alarm equipment, NB-IoT communication module, GPS positioning system and other related equipment to realize real-time operators warning and remote alarming to the monitoring platform. Thus, timely management of the fallen radiation source can be realized. What's more, position of radiation source braid is monitored by radiation source braid locking mechanism, gamma-ray induction module and keying switch. This idea solves the bottleneck problem of difficulty in transmitting real-time remote monitoring signal by NB-IoT technology. Single-chip microcontroller is innovatively embedded around the radiation source to monitor whether the source falls off. As a result, when part or all of the source braid are not returned to the storage location of the flaw detector, the gamma ray induction module, keying switch, and radiation source braid locking mechanism remind the operator of the dangerous situation. At the same time, NB-IoT transmission system alarms companies and regulators of safety risks. In conclusion, radiation source can be found timely when it falls off, to avoid radiation accident. Two bottlenecks related to installing GPS positioning system can be solved, that the GPS positioning system is installed on the flaw detector, and the radioactive source is still unable to be controlled, and that the GPS positioning system requires power to transmit the signal back to the regulatory platform or to the platform of the flaw detection enterprise. This article's ideas can solve this problem through the advantages of NB-IoT.
Treatment of de novo femoro-popliteal lesions with a new Drug Coated Balloon: early experience of a single Center in the first 50 patients
Creators: name: Bracale, Umberto Marcello
name: Di Filippo, Mathilde
name: De Capua, Antonio
name: Vanni, Linda
name: Narese, Donatella
name: Pecoraro, Felice
name: Giribono, Anna Maria
name: Bracale, Renata
Publisher: name: Universita' degli Studi di Salerno
Year: 2018
Subjects: Drug-coated balloon
Peripheral arterial disease
Superficial femoral artery
Endovascular treatment

description: Angioplasty with drug-coated balloon (DCB) is an emerging and reliable method for the treatment of femoro-popliteal lesions. We report our experience with the Stellarex™ DCB in the first 50 patients. Methods - From July 2015 to November 2017, 50 patients (41 M, 9F), medium age (64 ± 7.4 year) were subject to 33 angioplasties (PTAs) for femoro-popliteal lesions with a paclitaxel-coated balloon (Stellarex™). Based upon clinical data sixteen patients had severe claudication (56% - Rutherford class 3); ten patients suffered from ischemic rest pain (34% - Rutherford class 4); and five presented minor tissue loss (10% - Rutherford class 5). 42% of patients showed femoro-popliteal lesion TASC-II B, and 58% presented lesions pertaining to TASC-II C. Results - Immediate technical success was 100% without perioperative complications. Primary patency rate was 94% at twelve months. In three cases restenosis (6%) was detected within a year from procedure, and a further PTA DCB was performed with primary assisted patency rates of 100% at twelve months. Two patients underwent major lower limb amputation. Three patients died during follow-up and one patient was lost at follow-up. Conclusion - DCB angioplasty with Stellarex™ is a viable alternative to traditional endovascular procedures proving satisfactory primary patency rates at twelve months. Based on our experience, treatment with DCB is a first choice technique for non-complex de novo lesions of the femoro – popliteal tract.
The Plancherel theorem for Fourier--Laplace--Nahm transform for connections on the projective line
Creators: name: Szabó, Szilárd
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 14H60, 14D20, 14J26, 53D30

description: We prove that the Fourier--Laplace--Nahm transform for connections on the projective line is a hyper-Kähler isometry.
description: 17 pages
St. Gildas and the anointing of kings
Creators: name: Friedlander Alan
Publisher: name: Петербургский исторический журнал
Year: 2015
Subjects: ГИЛЬДА ПРЕМУДРЫЙ
МИРОПОМАЗАНИЕ КОРОЛЕЙ
ПЕЛАГИАНСТВО
ВЕСТГОТСКОЕ КОРОЛЕВСТВО
VISIGOTHIC MONARCHS
PELAGIAN IDEAS
DE EXCIDIO BRITANNIAE OF GILDAS

description: Consensus reigns, or very nearly, among historians concerning the medieval origins of royal anointing: a simple matter, barely worth the insertion of a question mark. The practice took root with the anointing of Pepin in the 8th century; one precedent paved the way, the anointing of various Visigothic monarchs in the 7th century. A few discordant points of evidence, while not disregarded, have generated little interest and found little acceptance. This article proposes to recall one discordant note and to suggest the chance of its credibility. The statement ungebantur reges in the De Excidio Britanniae of Gildas, has been explained away conveniently as a figure of speech, a metaphorical turn, or mere misinformation. It has been dismissed without evidence because no evidence confirms it, an argument from silence which validates only an a priori judgment. Perhaps, we suggest, it is well to reconsider the consensus. Conditions in sub-Roman Britain a uniquely unstable political landscape, the fermentation of Pelagian ideas, especially regarding the necessity of unction present the possibility that Gildas’ words reflect not metaphor or misinformation but a material event, an experiment, in a time of chaos, in new forms of validation for authority unable to rest on established foundations.