cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Norbert Heger, Die Skulpturen der Stadtgebiete von Aguntum und Brigantium
Creators: name: Peters-Abbey, Regina
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Norbert Heger, Die Skulpturen der Stadtgebiete von Aguntum und Brigantium. Corpus Signorum Imperii Romani Österreich III 4. Verlag der Österreichischen Akademie der Wissenschaften, Wien 1987. IV, 44 und 28 Seiten, 15 und 12 Tafeln.
description: Bonner Jahrbücher, Bd. 190.1990(1991): Bonner Jahrbücher
Active Electrically Small Antenna Based on Superconducting Quantum Array
Creators: name: Kornev, Victor K.
name: Soloviev, Igor I.
name: Sharafiev, Alexey V.
name: Klenov, Nikolay V.
name: Mukhanov, Oleg A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We introduce Superconductive Quantum Arrays (SQAs) and propose to use these structures as active Electrically Small Antennas (ESA). Several prototypes of the active ESA were fabricated using Nb process with critical current density 4.5 kA/cm2 and experimentally evaluated. The magnetic field to voltage transfer function linearity up to 70 dB was measured, and transfer factor dV/dB up to 6.5 mV/μT was observed for the ESA prototype containing 560 cells.
description: 5 pages, 8 figures, Applied Superconductivity Conference (ASC'2012)
The inaction approach to gauge theories
Creators: name: Pivovarov, Grigorii
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The inaction approach introduced previously for phi^4 is generalized to gauge theories. It combines the advantages of the effective field theory and causal approaches to quantum fields. Also, it suggests ways to generalizing gauge theories.
description: Write-up of presentations at Quarks-2012, HSQCD-2012, and CALC-2012
Variation of Emission Line Width in Mid- and High-Latitude Corona
Creators: name: Prasad, S. Krishna
name: Singh, Jagdev
name: Banerjee, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spectroscopic studies of the solar corona, using the high spatial and spectral resolution 25-cm coronagraph at the Norikura observatory for equatorial off-limb observations, indicated that the variation of radiance and line width with height is different for different temperature lines. The line width of the forbidden red emission line [\FeX] 6374 Åwas found to increase with height and that of the green emission line [\FeXIV] 5303 Ådecrease with height. This had been interpreted in terms of the interaction between different temperature plasma but needed to be confirmed. Further observations were made on several days during 2004, in two emission lines simultaneously covering the mid-latitude and polar regions to investigate the existence of the observed variation in other parts of the solar corona. In this study, we have analysed several raster scans that cover mid- and high-latitude regions of the off-limb corona in all four bright emission lines [\FeX] 6374 Å, [\FeXI] 7892 Å, [\FeXIII] 10747 Å, and [\FeXIV] 5303 Å. We find that the FWHM of the red line increases with height and that of the green line decreases with height similar to that observed in equatorial regions. The line widths are found to be higher in polar regions for all of the observed emission lines except for the green line. Higher values of FWHM in polar regions may imply higher non-thermal velocities which could be further linked to a non-thermal source powering the solar-wind acceleration, but the reason for the behaviour of the green emission line remains to be explored.
description: accepted for publication in Solar physics
Otar Lordkipanidse, Archäologie in Georgien. Von der Altsteinzeit zum Mittelalter
Creators: name: Plontke-Lüning, Annegret
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Otar Lordkipanidse, Archäologie in Georgien. Von der Altsteinzeit zum Mittelalter. Quellen und Forschungen zur prähistorischen und provinzialrömischen Archäologie, Band 5. Acta Humaniora. VCH Verlagsgesellschaft, Weinheim 1991. 202 Seiten, 12 Farbabbildungen, zahlreiche Textabbildungen, 58 Tafeln, davon 12 farbig.
description: Bonner Jahrbücher, Bd. 192.1992(1993): Bonner Jahrbücher
Reinterpreting the Frameworks: Hobbes & Grotius on the Right of Resistance, Slavery, & Ius Naturale
Creators: name: Kaplan, Andrew
Publisher: name: University of Chicago
Year: 2021
Subjects: subject: Hobbes
subject: Grotius
subject: Natural Law
subject: Natural Right
subject: Right of Resistance
subject: Resistance
subject: Slavery

description: The seventeenth century marks several radical philosophical and political changes for Europe. Two such writers who emerged during this period are Hugh Grotius and Thomas Hobbes. Individually, their respective contributions to political theory are already widely acknowledged. However, their relationship to one another, and their respective relations to the wider trends evident in political thought at the time are of much greater contestation. Richard Tuck argues in Natural Rights Theories and The Right of War and Peace that Grotius ought be considered as a foundational thinker of natural rights in the period, and a formative influence on the natural rights theory of Hobbes. However, this interpretation of Hobbes as following in Grotius’ footsteps is criticized by Perez Zagorin, who instead holds that while both Grotius and Hobbes are indeed influenced to some extent by their contemporary intellectual trends, the two are themselves wholly independent thinkers. This paper seeks to evaluate the claims made by both Tuck and Zagorin. In it I argue that, while Hobbes is deeply indebted to Grotius for his methodological and theoretical underpinnings as defended by Tuck, Zagorin is likewise correct in his assessments that Grotius had at least to some extent by Hobbes’ time become part of the philosophical æther, and that Grotius’s strong connection to his predecessors and his reliance on the individual will as directly connected to God’s locate him as equally aligned with both his philosophical predecessors and successors. This interpretation is defended largely through the examination of Hobbes and Grotius on two primary issues; their respective views on slavery, and the right of resistance.
Moonshine and Donaldson invariants of CP^2
Creators: name: Malmendier, Andreas
name: Ono, Ken
Publisher: name: arXiv
Year: 2012
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 11F23, 11F37, 14D21, 81T13

description: Eguchi, Ooguri, and Tachikawa recently conjectured a new moonshine phenomenon. They conjecture that the coefficients of a certain mock modular form H(tau), which arises from the K3 surface elliptic genus, are sums of dimensions of irreducible representations of the Mathieu group M24. We prove that H(tau) surprisingly also plays a significant role in the theory of Donaldson invariants. We prove that the Moore-Witten u-plane integrals for H(tau) are the SO(3)-Donaldson invariants of CP^2. This result then implies a moonshine phenomenon where these invariants conjecturally are expressions in the dimensions of the irreducible representations of M24. Indeed, we obtain an explicit expression for the Donaldson invariant generating function Z(p,S) in terms of the derivatives of H(tau).
description: 9 pages
A journey from the hard to the soft state: How do QPOs evolve in the 2021 outburst of GX 339-4?
Creators: name: Stiele, H.
name: Kong, A. K. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigated the snapshots of five NICER observations of the black hole transient GX 339-4 when the source transited from the hard state into the soft state during its outburst in 2021. In this paper, we focused our study on the evolution of quasi-periodic oscillations (QPOs) and noise components using power-density spectra. In addition, we derived hardness ratios comparing count rates above and below 2 keV. The evolution from the hard to the soft state was a somewhat erratic process showing several transitions between states that are dominated by top-flat noise and can show type-C QPOs; those that are dominated by red noise and can show type-B QPOs. From the parameters that we studied, we only found a strong correlation between the hardness ratio and the type of QPO observed. This implies that the appearance of type-B QPOs is related to a change in the accretion geometry of the system that also reflects in altered spectral properties. We also observed that the type-B QPO forms from or disintegrates into a broad peaked feature when the source comes out of or goes to the hard-intermediate state, respectively. This implies some strong decoherence in the process that creates this feature.
description: 6 pages, 5 figures, supplementary online material as appendices (13 pages), accepted for publication in MNRAS
title: Italienisch als Herkunftssprache im Fremdsprachenunterricht: Die Rolle der Dialektkompetenz
Creators: name: Arona, Sebastiano
name: Kupisch, Tanja
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Unser Beitrag beschäftigt sich mit italienischen Herkunftssprecher/innen im Fremdsprachenunterricht Italienisch in Baden-Württemberg, wobei wir drei Perspektiven einnehmen: (i) die Mikro-Perspektive der Herkunftssprecher/innen,die in der Regel flüssig Italienisch sprechen, aber oft bidialektal mit einer Varietät des Italienischen sind, (ii) die Meso-Perspektive der Lehrenden, die diese angemessen in ihren Unterricht integrieren müssen, (iii) die Makro-Perspektive der Schulpolitik des Landes, die den Rahmen für den Italienischunterricht vorgibt. Die Mikro- und Meso-Perspektiven werden anhand von Survey-Studien mit ehemaligen Schüler/inne/n bzw. Lehrkräften dargestellt; die Makroperspektive anhand einer Analyse sprachpolitisch relevanter Dokumente. Die Ergebnisse legen nahe, dass die Ausbildung der Lehrkräfte mit Hinblick auf Herkunftssprecher/innen und ihre Varietäten noch ausbaufähig ist.
The Image of the M87 Black Hole Reconstructed with PRIMO
Creators: name: Medeiros, Lia
name: Psaltis, Dimitrios
name: Lauer, Tod R.
name: Ozel, Feryal
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a new reconstruction of the Event Horizon Telescope (EHT) image of the M87 black hole from the 2017 data set. We use PRIMO, a novel dictionary-learning based algorithm that uses high-fidelity simulations of accreting black holes as a training set. By learning the correlations between the different regions of the space of interferometric data, this approach allows us to recover high-fidelity images even in the presence of sparse coverage and reach the nominal resolution of the EHT array. The black hole image comprises a thin bright ring with a diameter of $41.5\pm0.6\,μ$as and a fractional width that is at least a factor of two smaller than previously reported. This improvement has important implications for measuring the mass of the central black hole in M87 based on the EHT images.
description: 7 pages, 5 figures
MagNetUS 2021 - Day 3 - E. Kostadinova - Consolidating Efforts in Outreach and Workforce Development
Creators: name: Kostadinova, Eva
Publisher: name: Zenodo
Year: 2021

description: MagNetUS 2021 - Day 3
 Speaker: Eva Kostadinova
 Title: Consolidating Efforts in Outreach and Workforce Development
Xenophobia and Fake News
Creators: name: Plieger, Thomas
name: Spitzley, Anna Katharina
name: Von Hellfeld, Malina
name: Feist, Felix
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Medicine and Health Sciences
subject: Mental and Social Health
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This study is part of student’s bachelor and master theses (B.Sc. & M.Sc.; year 2023/2024) at the Department of Psychology, University of Bonn (Section of Differential Psychology). In this study, a replication will be the base of three student's final thesis which in addition will all focus on different extensions of this topic.
Efficiency and Its Bounds for Thermal Engines at Maximum Power using a Newton's Law of Cooling
Creators: name: Yan, H.
name: Guo, Hao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a thermal engine model for which Newton's cooling law is obeyed during heat transfer processes. The thermal efficiency and its bounds at maximum output power are derived and discussed. This model, though quite simple, can be applied not only to Carnot engines but also to four other types of engines. For the long thermal contact time limit, new bounds, tighter than what were known before, are obtained. In this case,this model can simulate Otto, Joule Brayton, Diesel, and Atkinson engines. While in the short contact time limit, which corresponds to the Carnot cycle, the same efficiency bounds as Esposito et al's are derived. In both cases, the thermal efficiency decreases as the ratio between the heat capacities of the working medium during heating and cooling stages increases. This might provide instructions for designing real engines.
Thermal Models of Asteroids with Two-band Combinations of Wide-field Infrared Survey Explorer Cryogenic Data
Creators: name: Whittaker, Emily A.
name: Margot, Jean-Luc
name: Lam, Adrian L. H.
name: Myhrvold, Nathan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We used the reparameterized Near-Earth Asteroid Thermal Model to model observations of a curated set of over 4000 asteroids from the Wide-field Infrared Survey Explorer in two wavelength bands (W2-3 or W3-4) and compared the results to previous results from all four wavelength bands (W1-4). This comparison was done with the goal of elucidating unique aspects of modeling two-band observations so that any potential biases or shortcomings for planned two-band surveys (e.g., the NASA Near-Earth Object Surveyor Mission) can be anticipated and quantified. The W2-3 two-band fits usually yielded slightly smaller diameters than the four-band fits, with a median diameter difference of -10%, with the 5% and 95% quantiles of the distribution at -32% and -1.5%, respectively. We conducted similar comparisons for W3-4, in part because the longest wavelength bands are expected to provide the best two-band results. We found that the W3-4 two-band diameters are slightly larger than the four-band results, with a median diameter difference of 11% and the 5% and 95% quantiles of the distribution at -2.1% and 26%, respectively. The diameter uncertainty, obtained with bootstrap analysis, is larger by 30% and 35% (median values) for the W2-3 and W3-4 fits, respectively, than for the corresponding four-band fits. Using 23 high-quality stellar occultation diameters as a benchmark, we found that the median errors of W2-3 and W3-4 diameter estimates are -15% and +12%, respectively, whereas the median error of the four-band fits is 9.3%. Although the W2-3 and W3-4 diameters appear to have greater systematic errors and uncertainties than their four-band counterparts, two-band estimates remain useful because they improve upon diameter estimates obtained from visible photometry alone.
description: 18 pages, 21 figures
High frequency limit for gravitational perturbations of cosmological models in modified gravity theories
Creators: name: Saito, Keiki
name: Ishibashi, Akihiro
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In general relativity, it has been shown that the effective gravitational stress-energy tensor for short-wavelength metric perturbations acts just like that for a radiation fluid, and thus, in particular, cannot provide any effects that mimic dark energy. However, it is far from obvious if this property of the effective gravitational stress-energy tensor is a specific nature held only in the Einstein gravity, or holds also in other theories of gravity. In particular, when considering modified gravity theories that involve higher order derivative terms, one may expect to have some non-negligible effects arising from higher order derivatives of short-wavelength perturbations. In this paper, we argue this is not the case at least in the cosmological context. We show that when the background, or coarse-grained metric averaged over several wavelengths has FLRW symmetry, the effective gravitational stress-energy tensor for metric perturbations of a cosmological model in a simple class of f(R) gravity theories, as well as that obtained in the corresponding scalar-tensor theory, takes a similar form to that in general relativity and is in fact traceless, hence acting again like a radiation fluid.
description: 11 pages, no figures
Morphological asymmetries of quasar host galaxies with Subaru Hyper Suprime-Cam
Creators: name: Tang, Shenli
name: Silverman, John D.
name: Yesuf, Hassen M.
name: Ding, Xuheng
name: Li, Junyao
name: Bottrell, Connor
name: Goulding, Andy
name: Omori, Kiyoaki Christopher
name: Toba, Yoshiki
name: Kawaguchi, Toshihiro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: How does the host galaxy morphology influence a central quasar or vice versa? We address this question by measuring the asymmetries of 2424 SDSS quasar hosts at $0.245$). This then manifests itself into quasar hosts being more asymmetric, on average, when they harbor a more massive and highly accreting black hole. The merger fraction also positively correlates with $L_{\rm bol}$ and reaches up to 35\% for the most luminous. Compared to control galaxies, quasar hosts are marginally more asymmetric (excess of 0.017 in median at 9.4$σ$ level) and the merger fractions are similar ($\sim 16.5\%$). We quantify the dependence of asymmetry on optical band which demonstrates that mergers are more likely to be identified with the bluer bands and the correlation between $L_{\rm bol}$ and asymmetry is also stronger in such bands. We stress that the band dependence, indicative of a changing stellar population, is an important factor in considering the influence of mergers on AGN activity.
description: 27 pages, 28 figures
DIGITALIZATION AND ACCESS TO FINANCE IN SUB-SAHARAN AFRICA: THE ROLE OF REGULATORY QUALITY
Creators: name: Onyia, Dr. Chinedu Callistus
name: Okereke, Samuel Felix
name: Obinn, James Kelechi
Publisher: name: ZAP journals
Year: 2023
Subjects: Digitalization
access to finance
regulatory quality
two-step system GMM

description: Digital technology has become the order of daily activities in developing countries including Sub-Saharan Africa. The financial sector has not been left out in the digitalization process, which has been regarded as veritable means of enhancing access to finance in Sub-Saharan Africa. However, this has been hampered by the quality of regulations in the region. Thus, the study examined the nexus between digitalization and access to finance and the role of regulatory quality in Sub-Saharan Africa between 2010 and 2022. The study employed the two-step system Generalized Method of Moments in analyzing the data, and the result found that digitalization is effective in improving access to finance in Sub-Saharan Africa. It also found that poor regulatory quality negatively affect financial access in the region. As a result, when regulatory quality interacted with digitalization in the model, it weakens the effect of digitalization on access to finance. This calls for the SSA countries to strengthen the regulations especially with regard to digitalization and fintech in order to guide against undue transaction by the digital service providers and to guide against bad service providers scamming the customers and denying them access to financial services. Therefore, the study recommends that Sub-Saharan African countries need to strengthen their institutional infrastructures to make them stronger to prevent abuse of digital platform.
Motion Control of a Spinning Disc on Rotating Earth
Creators: name: Jing, Fangxu
name: Kanso, Eva
name: Newton, Paul K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Classical Physics (physics.class-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: This paper considers the motion control of a particle and a spinning disc on rotating earth. The equations of motion are derived using Lagrangian mechanics. Trajectory planning is studied as an optimization problem using the method referred to as Discrete Mechanics and Optimal Control.
description: 10 pages, 5 figures, 46th IEEE Conference on Decision and Control
Efficiency and Its Bounds for a Quantum Einstein Engine at Maximum Power
Creators: name: Yan, H.
name: Guo, Hao
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study a quantum thermal engine model for which the heat transfer law is determined by Einstein's theory of radiation. The working substance of the quantum engine is assumed to be a two-level quantum systems of which the constituent particles obey Maxwell-Boltzmann(M.B.), Fermi-Dirac(F.D.) or Bose-einstein(B.E.) distributions respectively at equilibrium. The thermal efficiency and its bounds at maximum power of these models are derived and discussed in the long and short thermal contact time limits. The similarity and difference between these models are discussed. We also compare the efficiency bounds of this quantum thermal engine to those of its classical counterpart.
A Privacy-Preserving Architecture for the Protection of Adolescents in Online Social Networks
Creators: name: Charalambous, Markos
name: Papagiannis, Petros
name: Papasavva, Antonis
name: Pantelitsa Leonidou
name: Constaninou, Rafael
name: Terzidou, Lia
name: Christophides, Theodoros
name: Nicolaou, Pantelis
name: Orfeas Theofanis
name: Kalatzantonakis, George
name: Sirivianos, Michael
Publisher: name: Zenodo
Year: 2020
Subjects: online social networks
online threats
cybersecurity risks
privacy
minors

description: Online social networks (OSN) constitute an integral part of people's every day social activity. Specifically, mainstream OSNs such as Twitter, YouTube, and Facebook are especially prominent in adolescents' lives for communicating with other people online, expressing and entertain themselves, and finding information. However, adolescents face a significant number of threats when using online platforms. Some of these threats include aggressive behavior and cyberbullying, sexual grooming, false news and fake activity, radicalization, and exposure of personal information and sensitive content. There is a pressing need for parental control tools and Internet content filtering techniques to protect the vulnerable groups that use online platforms. Existing parental control tools occasionally violate the privacy of adolescents, leading them to use other communication channels to avoid moderation. In this work, we design and implement a user-centric Family Advice Suite with Guardian Avatars aiming at preserving the privacy of the individuals towards their custodians and towards the advice tool itself. Moreover, we present a systematic process for designing and developing state of the art techniques and a system architecture to prevent minors' exposure to numerous risks and dangers while using Facebook, Twitter, and YouTube on a browser.
Thermodynamic formalism for interval maps: inducing schemes
Creators: name: Iommi, Godofredo
name: Todd, Mike
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: This survey article concerns inducing schemes in the context of interval maps. We explain how the study of these induced systems allows for the fine description of, not only, the thermodynamic formalism for certain multimodal maps, but also of its multifractal structure.
description: Survey
Dynamic priority allocation via restless bandit marginal productivity indices
Creators: name: Niño-Mora, José
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 90B36, 90C4, 090B05, 90B22, 90B18

description: This paper surveys recent work by the author on the theoretical and algorithmic aspects of restless bandit indexation as well as on its application to a variety of problems involving the dynamic allocation of priority to multiple stochastic projects. The main aim is to present ideas and methods in an accessible form that can be of use to researchers addressing problems of such a kind. Besides building on the rich literature on bandit problems, our approach draws on ideas from linear programming, economics, and multi-objective optimization. In particular, it was motivated to address issues raised in the seminal work of Whittle (Restless bandits: activity allocation in a changing world. In: Gani J. (ed.) A Celebration of Applied Probability, J. Appl. Probab., vol. 25A, Applied Probability Trust, Sheffield, pp. 287-298, 1988) where he introduced the index for restless bandits that is the starting point of this work. Such an index, along with previously proposed indices and more recent extensions, is shown to be unified through the intuitive concept of ``marginal productivity index'' (MPI), which measures the marginal productivity of work on a project at each of its states. In a multi-project setting, MPI policies are economically sound, as they dynamically allocate higher priority to those projects where work appears to be currently more productive. Besides being tractable and widely applicable, a growing body of computational evidence indicates that such index policies typically achieve a near-optimal performance and substantially outperform benchmark policies derived from conventional approaches.
description: 7 figures
Deliverable D3.1: Product selection guidelines for technical  requirements
Creators: name: Dispenza, Clelia
Publisher: name: Zenodo
Year: 2023

description: This deliverable is part of Task 3.3 Selection of Products and Technologies for Scaling-up (M1-M30; Lead partner: EPS), which concerns the definition of criteria and factors to be considered in the selection of new products to be developed within the project. In particular, the 'Guidelines for the selection of products for technical requirements' aim to define the main technical characteristics of the new products to be developed and the methodologies for their evaluation. 
They were drafted with the contribution of the consortium's industrial partners and will be periodically reviewed and possibly updated during the development of the project, in particular for the proposed methodologies for assessing the fulfilment of requirements and/or to consider the introduction of quantitative targets.
IoT trust and reputation: a survey and taxonomy
Creators: name: Aaqib, Muhammad
name: Ali, Aftab
name: Chen, Liming
name: Nibouche, Omar
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computers and Society (cs.CY)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: IoT is one of the fastest-growing technologies and it is estimated that more than a billion devices would be utilized across the globe by the end of 2030. To maximize the capability of these connected entities, trust and reputation among IoT entities is essential. Several trust management models have been proposed in the IoT environment; however, these schemes have not fully addressed the IoT devices features, such as devices role, device type and its dynamic behavior in a smart environment. As a result, traditional trust and reputation models are insufficient to tackle these characteristics and uncertainty risks while connecting nodes to the network. Whilst continuous study has been carried out and various articles suggest promising solutions in constrained environments, research on trust and reputation is still at its infancy. In this paper, we carry out a comprehensive literature review on state-of-the-art research on the trust and reputation of IoT devices and systems. Specifically, we first propose a new structure, namely a new taxonomy, to organize the trust and reputation models based on the ways trust is managed. The proposed taxonomy comprises of traditional trust management-based systems and artificial intelligence-based systems, and combine both the classes which encourage the existing schemes to adapt these emerging concepts. This collaboration between the conventional mathematical and the advanced ML models result in design schemes that are more robust and efficient. Then we drill down to compare and analyse the methods and applications of these systems based on community-accepted performance metrics, e.g. scalability, delay, cooperativeness and efficiency. Finally, built upon the findings of the analysis, we identify and discuss open research issues and challenges, and further speculate and point out future research directions.
description: 20 pages, 5 Figures, 3 tables, Journal of cloud computing
Acuerdos mínimos
Creators: name: Suing, Abel
Publisher: name: Zenodo
Year: 2021
Subjects: Valores
democracia
tolerancia
Libertad
igualdad
solidaridad
diálogo

description: Publicación en la sección de opinión del diario digital hora 32 https://hora32.com.ec/ que se edita en Loja (Ecuador)
On computation of clustering coefficient in a class of random networks
Creators: name: Demetrian, Michal
name: Nehez, Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The random networks enriched with additional structures as metric and group-symmetry in background metric space are investigated. The important quantities like he clustering coefficient as well as the mean degree of separation in such networks are effectively computed with help of additional structures. Representative models are discussed in details.
Assembly Histories and Observational Properties of Simulated Early-type Galaxies
Creators: name: Johansson, Peter H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We demonstrate that massive simulated galaxies assemble in two phases, with the initial growth dominated by compact in situ star formation, whereas the late growth is dominated by accretion of old stars formed in subunits outside the main galaxy. We also show that 1) gravitational feedback strongly suppresses late star formation in massive galaxies contributing to the observed galaxy colour bimodality that 2) the observed galaxy downsizing can be explained naturally in the two-phased model and finally that 3) the details of the assembly histories of massive galaxies are directly connected to their observed kinematic properties.
description: 4 pages, 3 figures. To appear in the Proceedings of IAU Symposium No. 295: "The intriguing life of massive galaxies", D. Thomas, A. Pasquali and I. Ferreras, eds
Proton Radius: A Puzzle or a Solution!?
Creators: name: Jentschura, Ulrich D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The proton radius puzzle is known as the discrepancy of the proton radius, obtained from muonic hydrogen spectroscopy (obtained as being roughly equal to 0.84fm), and the proton radius obtained from (ordinary) hydrogen spectroscopy where a number of measurements involving highly excited states have traditionally favored a value of about 0.88fm. Recently, a number of measurements of hydrogen transitions by the Munich (Garching) groups (notably, several hyperfine-resolved sublevels of the 2S-4P) and by the group at the University of Toronto (2S-2P_1/2) have led to transition frequency data consistent with the smaller proton radius of about 0.84fm. A recent measurement of the 2S-8D transition by a group at Colorado State University leads to a proton radius of about $0.86$\,fm, in between the two aforementioned results. The current situation points to a possible, purely experimental, resolution of the proton radius puzzle. However, a closer look at the situation reveals that the situation may be somewhat less clear, raising the question of whether or not the proton radius puzzle has been conclusively solved, and opening up interesting experimental possiblities at TRIUMF/ARIEL.
description: 4 pages; RevTeX
Massive gravity solution of Black Holes and Entropy Bounds
Creators: name: Hadi, Hamed
name: Akbarieh, Amin Rezaei
name: Ilkhchi, Pouneh Safarzadeh
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The dRGT massive gravity represent a comprehensive theory which properly describes massive graviton field. Latterly, the exact spherical solutions are identified for the black hole in the dRGT massive gravity theory. In this paper, we derive Bousso's D-bound entropy for the black hole solutions of dRGT massive gravity. By an entropic consideration which provides a criterion, it is demonstrated that the relation between the D-bound and Bekenstein entropy bound imposes some constraints on the structure parameters of black hole solutions in dRGT massive gravity.
description: 17 pages
Stability and energetics of Bursian diodes
Creators: name: Rosin, M. S.
name: Sun, H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present an analysis of the stability, energy and torque properties of a model Bursian diode in a one dimensional Eulerian framework using the cold Euler-Poisson fluid equations. In regions of parameter space where there are two sets of equilibrium solutions for the same boundary conditions, one solution is found to be stable and the other unstable to linear perturbations. Following the linearly unstable solutions into the non-linear regime, we find they relax to the stable equilibrium. A description of this process in terms of kinetic, potential and boundary-flux energies is given, and the relation to a Hamiltonian formulation is commented upon. A non-local torque integral theorem, relating the prescribed boundary data to the average current in the domain, is also provided. These results should prove useful for understanding Bursian diodes in general, as well as for control applications and benchmarking numerical codes.
description: 15 pages, 8 figures
MagNetUS 2021 - Day 3 - A. Stanier - High-fidelity kinetic modeling of magnetic reconnection in laboratory experiments
Creators: name: Stanier, Adam
Publisher: name: Zenodo
Year: 2021

description: MagNetUS 2021 - Day 3
 Speaker: Adam Stanier
 Title: High-fidelity kinetic modeling of magnetic reconnection in laboratory experiments
A new mathematical problem related to quantization of fields
Creators: name: Stoyanovsky, A. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: This paper is a survey of author's mathematical and logical study of the problem of quantization of fields.
description: 11 pages, to appear in Russian Journal of Math. Phys. arXiv admin note: text overlap with arXiv:hep-th/0601080, arXiv:1110.0002
Entanglement Measures for Single- and Multi-Reference Correlation Effects
Creators: name: Boguslawski, Katharina
name: Tecmer, Paweł
name: Legeza, Örs
name: Reiher, Markus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Electron correlation effects are essential for an accurate ab initio description of molecules. A quantitative a priori knowledge of the single- or multi-reference nature of electronic structures as well as of the dominant contributions to the correlation energy can facilitate the decision regarding the optimum quantum chemical method of choice. We propose concepts from quantum information theory as orbital entanglement measures that allow us to evaluate the single- and multi-reference character of any molecular structure in a given orbital basis set. By studying these measures we can detect possible artifacts of small active spaces.
description: 14 pages, 4 figures
title: Heimat Defender: Rebellion
Creators: name: Hufsky, Susanna
Year: 2023

description: Die Arbeit analysiert Rechtspopulismus anhand des rechtsextremen Computerspiels Heimat Defender: Rebellion. Dabei wird das Material anhand zeitgeschichtlicher und medienspezifischer Betrachtungsweisen analysieren, um das mediale Gefüge eines Platform- Games greifbarer zu machen. Es wird skizziert, wie sich rechtspopulistische Akteur:innen dessen bedienen, um rechte Ideologie zu verbreiten. Zudem bewegt sich die Arbeit entlang geschlechtsspezifischer Diskurse, um die ideologische Schlagseite des Spiels sichtbar zu machen und die Diskurse, die von Rechts entlang von Queerfeindlichkeit geführt werden, aufzuschlüsseln. Dabei liegt der Fokus der Analyse auf den inhaltlichen Hauptmerkmalen des Spiels: der Produktion von Feindbildern, der Verwendung des Begriffs HEIMAT, der Adressierung der Spieler:innen sowie der Führungsfigur.
Numerical simulation of cylindrical solitary waves in periodic media
Creators: name: Ketcheson, Manuel Quezada de Luna David I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study the behavior of nonlinear waves in a two-dimensional medium with density and stress relation that vary periodically in space. Efficient approximate Riemann solvers are developed for the corresponding variable-coefficient first-order hyperbolic system. We present direct numerical simulations of this multiscale problem, focused on the propagation of a single localized perturbation in media with strongly varying impedance. For the conditions studied, we find little evidence of shock formation. Instead, solutions consist primarily of solitary waves. These solitary waves are observed to be stable over long times and to interact in a manner approximately like solitons. The system considered has no dispersive terms; these solitary waves arise due to the material heterogeneity, which leads to strong reflections and effective dispersion.
MagNetUS 2021 - Day 3 - R. Sydora - Experiments and theory on stimulated excitation of thermal diffusion waves in magnetized plasmas and their application
Creators: name: Sydora, Rick
Publisher: name: Zenodo
Year: 2021

description: MagNetUS 2021 - Day 3
 Speaker: Rick Sydora
 Title: Experiments and theory on stimulated excitation of thermal diffusion waves in magnetized plasmas and their application
Distributed Gesture Controlled Systems for Human-Machine Interface
Creators: name: Johnson, Hans
name: Saniie, Jafar
Publisher: name: arXiv
Year: 2023
Subjects: subject: Image and Video Processing (eess.IV)
subject: Human-Computer Interaction (cs.HC)
subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: This paper presents the design flow of an IoT human machine touchless interface. The device uses embedded computing in conjunction with the Leap Motion Controller to provide an accurate and intuitive touchless interface. Its main function is to augment current touchscreen devices in public spaces through a combination of computer vision technology, event driven programming, and machine learning. Especially following the COVID 19 pandemic, this technology is important for hygiene and sanitation purposes for public devices such as airports, food, and ATM kiosks where hundreds or even thousands of people may touch these devices in a single day. A prototype of the touchless interface was designed with a Leap Motion Controller housed on a Windows PC exchanging information with a Raspberry Pi microcontroller via internet connection.
description: 5 Pages, Accepted for Publication in 2022 IEEE International Conference on Electro Information Technology (eIT)
Barbara Ernst, Les Monnaies Franjaises depuis 1848 / Die Französischen Münzen seit 1848, 1968 / Barbara Ernst, Les Monnaies Franfaises au Systeme Dreimal 1795-1848 Die Französischen Münzen im Dezimalsystem, 1970
Creators: name: Schiffers, Reinhard
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 2 (1974)
Thermally induced structural modification in the Al/Zr multilayers
Creators: name: Zhong, Qi
name: Ma, Shuang
name: Zhang, Zhong
name: Qi, Runze
name: Li, Jia
name: Wang, Zhanshan
name: Jonnard, Philippe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The effect of increasing temperature on the structural stability and interactions of two kinds of Al/Zr (Al(1%wtSi)/Zr and Al(Pure)/Zr) multilayer mirrors are investigated. All Al/Zr multilayers annealed from 200^{\circ}C to 500^{\circ}C, were deposited on Si wafers by using direct-current magnetron sputtering technology. A detailed and consistent picture of the thermally induced changes in the microstructure is obtained using an array of complementary measurements including grazing incidence X-ray reflectance, atomic force microscope, X-ray diffraction and high-resolution transmission electron microscopy. The first significant structural changes of two systems are observed at 250^{\circ}C, characterized by asymmetric interlayers appears at interface. At 290^{\circ}C, the interface consisted of amorphous Al-Zr alloy is transformed to amorphous Al-Zr alloy and cubic ZrAl3 in both systems. By 298^{\circ}C of Al(1%wtSi)/Zr and 295^{\circ}C of Al(Pure)/Zr multilayers, the interfacial phases of Al-Zr alloy transform completely into polycrystalline mixtures of hcp-ZrAl2 and cubic-ZrAl3, which smooth the interface boundary and lower the surface roughness in the multilayers. Up to 500^{\circ}C, the multilayer structure still exists in both systems, and the differences between the asymmetric interlayers are much larger in the multilayers. Finally, we discuss the transformation from symmetric to asymmetric in the annealing process for other systems.
title: Einsatz von Digital Storytelling im herkunftssprachlichen Russischunterricht an einer Samstagsschule
Creators: name: Felberg, Darja
name: Hülsmann, Natalia
name: Propp, Kristina
name: Drackert, Anastasia
Publisher: name: Universitäts- und Landesbibliothek Darmstadt
Year: 2023

description: Der Umgang mit literarischen Texten im herkunftssprachlichen Unterricht ist im Bereich von Heritage Language Acquisition bisher nur selten ein primärer Forschungsgegenstand. Zugleich wird in der Literaturdidaktik zunehmend häufiger die Methode des Digital Storytelling (DST) angewandt, die in vielerlei Hinsicht Vorteile für SprachlernerInnen bieten kann (vgl. Matz/Wilden 2016; Owczarek2018), von denen auch HerkunftssprecherInnen u.a. im Sinne eines produktionsorientierten Umgangs mit Literatur profitieren können (vgl. Brehmer/Mehlhorn 2018: 88). In diesem Beitrag berichten wir über den Einsatz von DST im Rahmen eines Projekts an einer außerschulischen Bildungseinrichtung für Schülerinnen und Schüler (SuS) mit russischsprachigem Hintergrund. Dabei erstellten fünf SuS im Alter von 11 bis 12 Jahren auf Grundlage einer Kurzgeschichte insgesamt zwei Digital Stories. Das Projekt hatte zum Ziel, u.a. motivationale Aspekte, die wahrgenommene Selbstwirksamkeit und die Einstellungen zur Arbeit mit literarischen Texten zu untersuchen sowie die Methode des DST in der Praxis zu erproben und deren Einsatz zu evaluieren. Dafür wurden im Sinne der Aktionsforschung (vgl. Boeckmann 2016) Daten mithilfe von teilnehmenden Beobachtungen, Interviews und Fragebögen erhoben. Die Ergebnisse zeigen, dass DST ein vielversprechendes Instrument für die Arbeit mit Literatur im herkunftssprachlichen Russischunterricht darstellt, u.a. zur Förderung des Textverständnisses und zur Verknüpfung der Bereiche Literatur und Digitalisierung. Anhand der erhobenen Daten werden Vorschläge für die Implementierung von DST in herkunftssprachlichen Lerngruppen gemacht.
Prepartum level of dietary cation-anion difference fed to nulliparous cows: Acid-base balance, mineral metabolism, and health responses
Creators: name: P. Santos, José Eduardo
Publisher: name: figshare
Year: 2021
Subjects: subject: 70204 Animal Nutrition
subject: FOS: Animal and dairy science

description: Supplemental table for manuscript entitled "Prepartum level of dietary cation-anion difference fed to nulliparous cows: Acid-base balance, mineral metabolism, and health responses"
published under doi:

- https://doi.org/10.3168/jds.2021-20486
Is the Cygnus Superbubble a Hypernova Remnant?
Creators: name: Kimura, Masashi
name: Tsunemi, Hiroshi
name: Tomida, Hiroshi
name: Sugizaki, Mutsumi
name: Ueno, Shiro
name: Hanayama, Takanori
name: Yoshidome, Koshiro
name: Sasaki, Masayuki
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present here the observation of the Cygnus Superbubble (CSB) using the Solid-state slit camera (SSC) aboard the Monitor of All-sky X-ray Image. The CSB is a large diffuse structure in the Cygnus region with enhanced soft X-ray emission. By utilizing the CCD spectral resolution of the SSC, we detect Fe, Ne, Mg emission lines from the CSB for the first time. The best fit model implies thin hot plasma of kT ~ 0.3 keV with depleted abundance of 0.26 +/- 0.1 solar. Joint spectrum fitting of the ROSAT PSPC data and MAXI/SSC data enables us to measure precise values of NH and temperature inside the CSB. The results show that all of the regions in the CSB have similar NH and temperature, indicating that the CSB is single unity. The energy budgets calculation suggests that 2-3 Myrs of stellar wind from the Cyg OB2 is enough to power up the CSB, whereas due to its off center position, the origin of the CSB is most likely a Hypernova.
description: 15 pages 8 figures
Neural Network Algorithm for Intercepting Targets Moving Along Known Trajectories by a Dubins' Car
Creators: name: Nasonov, Ivan
name: Galyaev, Andrey
name: Medvedev, Andrey
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The task of intercepting a target moving along a rectilinear or circular trajectory by a Dubins' car is formulated as a time-optimal control problem with an arbitrary direction of the car's velocity at the interception moment. To solve this problem and to synthesize interception trajectories, neural network methods of unsupervised learning based on the Deep Deterministic Policy Gradient algorithm are used. The analysis of the obtained control laws and interception trajectories in comparison with the analytical solutions of the interception problem is performed. The mathematical modeling for the parameters of the target movement that the neural network had not seen before during training is carried out. Model experiments are conducted to test the stability of the neural solution. The effectiveness of using neural network methods for the synthesis of interception trajectories for given classes of target movements is shown.