cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Disk Evolution Study Through Imaging of Nearby Young Stars (DESTINYS): Late infall causing disk misalignment and dynamic structures in SU Aur
Creators: name: Ginski, C.
name: Facchini, S.
name: Huang, J.
name: Benisty, M.
name: Vaendel, D.
name: Stapper, L.
name: Dominik, C.
name: Bae, J.
name: Menard, F.
name: Muro-Arena, G.
name: Hogerheijde, M.
name: McClure, M.
name: van Holstein, R. G.
name: Birnstiel, T.
name: Boehler, Y.
name: Bohn, A.
name: Flock, M.
name: Mamajek, E. E.
name: Manara, C. F.
name: Pinilla, P.
name: Pinte, C.
name: Ribas, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Gas-rich circumstellar disks are the cradles of planet formation. As such, their evolution will strongly influence the resulting planet population. In the ESO DESTINYS large program, we study these disks within the first 10 Myr of their development with near-infrared scattered light imaging. Here we present VLT/SPHERE polarimetric observations of the nearby class II system SU Aur in which we resolve the disk down to scales of ~7 au. In addition to the new SPHERE observations, we utilize VLT/NACO, HST/STIS and ALMA archival data. The new SPHERE data show the disk around SU Aur and extended dust structures in unprecedented detail. We resolve several dust tails connected to the Keplerian disk. By comparison with ALMA data, we show that these dust tails represent material falling onto the disk. The disk itself shows an intricate spiral structure and a shadow lane, cast by an inner, misaligned disk component. Our observations suggest that SU Aur is undergoing late infall of material, which can explain the observed disk structures. SU Aur is the clearest observational example of this mechanism at work and demonstrates that late accretion events can still occur in the class II phase, thereby significantly affecting the evolution of circumstellar disks. Constraining the frequency of such events with additional observations will help determine whether this process is responsible for the spin-orbit misalignment in evolved exoplanet systems.
description: 18 pages, 12 figures, published in ApJL on 18-02-2021
Homotheties of Cylindrically Symmetric Static Manifolds and their Global Extension
Creators: name: Qadir, Asghar
name: Sharif, M.
name: Ziad, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Cylindrically symmetric static manifolds are classified according to their homotheties and metrics. In each case the homothety vector fields and the corresponding metrics are obtained explicitly by solving the homothety equations. It turns out that these metrics admit homothety groups $H_m$, where $m=4,5,7,11$. This classification is then used to identify the cylindrically symmetric static spaces admitting the local homotheties, which are globally prohibited due to their topological construction. Einstein's field equations are then used to identify the physical nature of the spaces thus obtained.
description: 8 pages, no figure
Mn-doped II-VI quantum dots: artificial molecular magnets
Creators: name: Fernandez-Rossier, J.
name: Aguado, Ramon
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The notion of artifical atom relies on the capability to change the number of carriers one by one in semiconductor quantum dots, and the resulting changes in their electronic structure. Organic molecules with transition metal atoms that have a net magnetic moment and display hysteretic behaviour are known as single molecule magnets (SMM). The fabrication of CdTe quantum dots chemically doped with a controlled number of Mn atoms and with a number of carriers controlled either electrically or optically paves the way towards a new concept in nanomagnetism: the artificial single molecule magnet. Here we study the magnetic properties of a Mn-doped CdTe quantum dot for different charge states and show to what extent they behave like a single molecule magnet.
description: Conference article presented at QD2006, Chamonix, May 2006
Single particle tunneling spectroscopy and superconducting gaps in layered iron based superconductor KCa$_{2}$Fe$_{4}$As$_{4}$F$_{2}$
Creators: name: Duan, Wen
name: Chen, Kailun
name: Hong, Wenshan
name: Chen, Xiaoyu
name: Yang, Huan
name: Li, Shiliang
name: Luo, Huiqian
name: Wen, Hai-Hu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We perform scanning tunneling microscopy/spectroscopy study on the layered iron based superconductor KCa$_2$Fe$_4$As$_4$F$_2$ with a critical temperature of about 33.5 K. Two types of terminated surfaces are generally observed after cleaving the samples in vacuum. On one commonly obtained surface, we observe a full gap feature with energy gap values close to 4.6 meV. This type of spectrum shows a clean and uniform full gap in space, which indicates the absence of gap nodes in this superconductor. Quasiparticle interference patterns have also been measured, which show no scattering patterns between the hole and tiny electron pockets, but rather an intra-band scattering pattern is observed possibly due to the hole-like $α$ pocket. The Fermi energy of this band is only about $24\pm6$ meV as derived from the energy dispersion result. Meanwhile, impurity induced bound-state peaks can be observed at about $\pm2.2$ meV on some spectra, and the peak value seems to be independent to magnetic field. On the second type of surface which is rarely obtained, the fully gapped feature can still be observed on the tunneling spectra, although multiple gaps are obtained either from a single spectrum or separate ones, and the gap values determined from coherence peaks locate mainly in the range from 4 to 8 meV. Our results clearly indicate multiple and nodeless superconducting gap nature in this layered superconductor KCa$_2$Fe$_4$As$_4$F$_2$, and the superfluid is mainly contributed by the hole-like Fermi surfaces near $Γ$ point. This would inspire further consideration on the effect of the shallow and incipient bands near M point, and help to understand the pairing mechanism in this highly layered iron-based superconductor.
description: 9 pages, 8 figures
Study of double-tagged gamma gamma events at LEPII
Creators: name: The DELPHI Collaboration
name: Abdallah, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Double-tagged interactions of photons with virtualities Q^2 between 10 GeV^2 and 200 GeV^2 are studied with the data collected by DELPHI at LEPII from 1998 to 2000, corresponding to an integrated luminosity of 550 pb^{-1}. The gam* gam* -> mu+mu- data agree with QED predictions. The cross-section of the reaction gam* gam* -> hadrons is measured and compared to the LO and NLO BFKL calculations.
description: 17 pages, 9 figures, Accepted by Eur. Phys. J. C
The time limit (prothesmia) in the graphe paranomon
Creators: name: Giannadaki, Ifigeneia
Publisher: name: Dike
Year: 2015

description: The graphe paranomon was a public case (dike demosia) introduced against illegal legislation in classical Athens. Although the procedure has attracted the attention of modern scholarship with regard to its function and significance  in the Athenian legal system, the statutory limitation on the liability of the author of a decree (prothesmia) has been only marginally addressed by modern scholars. This paper discusses the question of the time limit on the liability of the author from the time of the formal introduction of his decree, and, after thorough examination and evaluation of the sources, it establishes the length of the time limit as one year. It also offers an explanation of the rationale behind the tight statutory limitation, compared with other known statutory time limits in Athenian law, and the implications for the purpose and function of the graphe paranomon in the Athenian legal system in general.
La graphe paranomon era un’azione pubblica (dike demosia) destinata a colpire le proposte illegali di legge ad Atene. Benché tale procedura abbia ampiamente attirato l’attenzione della dottrina riguardo alla sua funzione e al suo significato nell’ordinamento giuridico ateniese, la decadenza (prothesmia) dall’azione di responsabilità nei confronti dell’autore di un decreto è stata presa in considerazione solo marginalmente.  Il presente articolo discute la questione del limite temporale entro il quale poteva essere fatta valere la responsabilità dell’autore di un decreto a partire dal momento della formale proposta di esso. Dopo un accurato esame delle fonti, si giunge al affermare che il limite era di un anno, e si propone anche una spiegazione del criterio che determinava un termine così breve, se comparato con altri termini di prescrizione nel diritto ateniese. Se ne illustrano infine le implicazioni riguardo allo scopo e alla funzione della graphe paranomon nel quadro dell’ordinamento giuridico ateniese nel suo complesso.
description: Dike, Vol 17 (2014)
Massive $Δ$-resonance admixed hypernuclear stars with anti-kaon condensations
Creators: name: Thapa, Vivek Baruah
name: Sinha, Monika
name: Li, Jia Jie
name: Sedrakian, Armen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we study the effect of (anti)kaon condensation on the properties of compact stars that develop hypernuclear cores with and without an admixture of $Δ$-resonances. We work within the covariant density functional theory with the parameters adjusted to $K$-atomic and kaon-nucleon scattering data in the kaonic sector. The density-dependent parameters in the hyperonic sector are adjusted to the data on $Λ$ and $Ξ^-$ hypernuclei data. The $Δ$-resonance couplings are tuned to the data obtained from their scattering off nuclei and heavy-ion collision experiments. We find that (anti)kaon condensate leads to a softening of the equation of state and lower maximum masses of compact stars than in the absence of the condensate. Both the $K^-$ and $\bar K^0$-condensations occur through a second-order phase transition, which implies no mixed-phase formation. For large values of (anti)kaon and $Δ$-resonance potentials in symmetric nuclear matter, we observe that condensation leads to an extinction of $ Ξ^{-,0}$ hyperons. We also investigate the influence of inclusion of additional hidden-strangeness $σ^{*}$ meson in the functional and find that it leads to a substantial softening of the equation of state and delay in the onset of (anti)kaons.
description: 14 pages, 11 figures, accepted for publication in Phys. Rev. D
Theoretical study of the band structure of 2H-SiC and 4H-SiC of silicon carbide polytypes
Creators: name: Sinelnik, A. V.
name: Semenov, A. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the electronic band properties of 2H-SiC and 4H-SiC silicon carbide polytypes. The structures of the electronic bands and density of state (DOS) using ab initio Density Functional Theory (DFT) were calculated for the first Brillouin zone both in the generalized gradient approximation and taking into account quasiparticle effects according to the GW scheme. The calculated bandgaps obtained using the GW approximation ${E_{\rm{g 2H-SiC}} = 3.17}$ eV and ${E_{\rm{g 4H-SiC}} = 3.26}$ eV agree well with experimental values. The shape and values of total DOS are within agreement with calculations performed by other authors. The calculated total energy values for 2H-SiC and 4H-SiC were close, but they satisfy the condition ${E_{\rm{2H}} > E_{\rm{4H}}}$, which implies that the 4H-SiC structure is more stable than 2H-SiC. Our calculations of the band structure and DOS of 2H-SiC and 4H-SiC by the DFT method showed that the application of the GW approximation is an optimum approach to the study of the electronic structure of 2H-SiC and 4H-SiC polytypes.
description: 6 pages, 2 figures, 2 tables
The complexity of partial-observation stochastic parity games with finite-memory strategies
Creators: name: Chatterjee, Krishnendu
name: Doyen, Laurent
name: Nain, Sumit
name: Vardi, Moshe
Publisher: name: IST Austria
Year: 2013
Subjects: 000 Computer science, knowledge general works

description: We consider two-player partial-observation stochastic games where player 1 has partial observation and player 2 has perfect observation. The winning condition we study are omega-regular conditions specified as parity objectives. The qualitative analysis problem given a partial-observation stochastic game and a parity objective asks whether there is a strategy to ensure that the objective is satisfied with probability 1 (resp. positive probability). While the qualitative analysis problems are known to be undecidable even for very special cases of parity objectives, they were shown to be decidable in 2EXPTIME under finite-memory strategies. We improve the complexity and show that the qualitative analysis problems for partial-observation stochastic parity games under finite-memory strategies are EXPTIME-complete; and also establish optimal (exponential) memory bounds for finite-memory strategies required for qualitative analysis.
Ion dynamics in capacitively coupled argon-xenon discharges
Creators: name: Klich, M.
name: Wilczek, S.
name: Janssen, J. F. J.
name: Brinkmann, R. P.
name: Mussenbrock, T.
name: Trieschmann, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: An argon-xenon (Ar/Xe) plasma is used as a model system for complex plasmas. Based on this system, symmetric low-pressure capacitively coupled radio-frequency discharges are examined utilizing Particle-In-Cell/Monte Carlo Collisions (PIC/MCC) simulations. In addition to the simulation, an analytical energy balance model fed with the simulation data is applied to analyze the findings further. This work focuses on investigating the ion dynamics in a plasma with two ion species and a gas mixture as background. By varying the gas composition and driving voltage of the single-frequency discharge, fundamental mechanics of the discharge, such as the evolution of the plasma density and the energy dispersion, are discussed. Thereby, close attention is paid to these measures' influence on the ion energy distribution functions at the electrode surfaces. The results show that both the gas composition and the driving voltage can significantly impact the ion dynamics. The mixing ratio of argon to xenon allows for shifting the distribution function for one ion species from collisionless to collision dominated. The mixing ratio serves as a control parameter for the ion flux and the impingement energy of ions at the surfaces. Additionally, a synergy effect between the ionization of argon and the ionization of xenon is found and discussed.
The High-Density Symmetry Energy and Direct Urca
Creators: name: Steiner, Andrew W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The symmetry energy of nucleonic matter is usually assumed to be quadratic in the isospin density. While this may be justified at sub-saturation densities, there is no need to enforce this restriction at super-saturation densities. The presence of a quartic term can strongly modify the critical density for the direct Urca process which leads to faster cooling of neutron stars. Neutron star cooling predictions which lie below the observational data can, for some equations of state, be repaired with a quartic term which effectively turns off the direct Urca process.
description: 6 pages, 3 figures, submitted to PRC
Considerazioni sulla Κροκωνιδῶν διαδικασIα
Creators: name: Fabbri, Lorenzo
Publisher: name: Dike
Year: 2015

description: The aim of this essay is to examine the remaining evidence concerning the dispute that took place between the γένος of Krokonidai and that of Koironidai. Analyzing the information handed down by lexicographers and by those orators who probably spoke in defense of each different stock, it is possible to make some conjectures about the reconstruction of the argument which most likely dealt with the claim of religious privileges in the Eleusinian cult. Probably the dispute brought to two different lawsuits: certainly a διαδικασíα and maybe a δίκη ἐξούλης as well. If on the one hand we don’t know how the dispute ended, on the other we know that Krokonidai had more prestige than their rival family.
Il presente lavoro si propone di esaminare le testimonianze pervenute circa la contesa che vide contrapposto il γένος dei Krokonidai contro quello dei Koironidai. Dall’esame delle informazioni tramandate dai lessicografi e dagli oratori che presumibilmente presero le difese delle due stirpi, è possibile avanzare ipotesi in merito alla ricostruzione della vicenda, che con buona probabilità verteva sulla rivendicazione di privilegi di carattere religioso all’interno del culto eleusino. È verisimile che la disputa diede luogo a due diversi procedimenti giudiziari: sicuramente una διαδικασíα e forse una δίκη ἐξούλης. Se da un lato non si è a conoscenza dell’esito finale della vicenda, dall’altro è certo il maggior prestigio di cui godettero i Krokonidai rispetto ai loro avversari.
description: Dike, Vol 17 (2014)
Radio emission of highly inclined cosmic ray air showers measured with LOPES
Creators: name: Jelena Petrovic LOPES Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: LOPES-10 (the first phase of LOPES, consisting of 10 antennas) detected a significant number of cosmic ray air showers with a zenith angle larger than 50$^{\circ}$, and many of these have very high radio field strengths. The most inclined event that has been detected with LOPES-10 has a zenith angle of almost 80$^{\circ}$. This is proof that the new technique is also applicable for cosmic ray air showers with high inclinations, which in the case that they are initiated close to the ground, can be a signature of neutrino events.Our results indicate that arrays of simple radio antennas can be used for the detection of highly inclined air showers, which might be triggered by neutrinos. In addition, we found that the radio pulse height (normalized with the muon number) for highly inclined events increases with the geomagnetic angle, which confirms the geomagnetic origin of radio emission in cosmic ray air showers.
description: A&A accepted
Per un riesame delle l. 1-6 del decreto attico su pesi e misure
Creators: name: Rizzi, Mariagrazia
Publisher: name: Dike
Year: 2015

description: This contribution aims to investigate the initial rows of the attic decree on weights and measures dating from the end of the second century B.C.  (IG II2 1013). The analysis mainly focuses on the integrations proposed in some of the editions of the ψήφισμα and will try to verify their plausibility from the juridical viewpoint of legal history. Particular attention is dedicated to the reconstruction of the lost lines of the decree, to the application of the ἀπαγωγή against those who act fraudulently in connection with weights and measures on the marketplace,  and to the various sanctions directed towards free individuals as well as slaves.
Il contributo è volto all’indagine delle prime linee del decreto attico sui pesi e misure della fine del II secolo a.C. (IG II2 1013). L’analisi si incentra in particolare sulle integrazioni proposte in alcune edizioni dello ψήφισμα ed è tesa a verificarne la loro accoglibilità sotto il profilo giuridico. Una particolare attenzione è posta alla ricostruzione delle linee non conservate del decreto, all’effettivo ricorso all’ἀπαγωγή contro colui che abbia tenuto nel mercato una condotta fraudolenta nel peso e nelle misura, alle diverse sanzioni previste nei confronti dei liberi e degli schiavi.
description: Dike, Vol 17 (2014)
DeepLoc: A Ubiquitous Accurate and Low-Overhead Outdoor Cellular Localization System
Creators: name: Shokry, Ahmed
name: Torki, Marwan
name: Youssef, Moustafa
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Recent years have witnessed fast growth in outdoor location-based services. While GPS is considered a ubiquitous localization system, it is not supported by low-end phones, requires direct line of sight to the satellites, and can drain the phone battery quickly. In this paper, we propose DeepLoc: a deep learning-based outdoor localization system that obtains GPS-like localization accuracy without its limitations. In particular, DeepLoc leverages the ubiquitous cellular signals received from the different cell towers heard by the mobile device as hints to localize it. To do that, crowd-sensed geo-tagged received signal strength information coming from different cell towers is used to train a deep model that is used to infer the user's position. As part of DeepLoc design, we introduce modules to address a number of practical challenges including scaling the data collection to large areas, handling the inherent noise in the cellular signal and geo-tagged data, as well as providing enough data that is required for deep learning models with low-overhead. We implemented DeepLoc on different Android devices. Evaluation results in realistic urban and rural environments show that DeepLoc can achieve a median localization accuracy within 18.8m in urban areas and within 15.7m in rural areas. This accuracy outperforms the state-of-the-art cellular-based systems by more than 470% and comes with 330% savings in power compared to the GPS. This highlights the promise of DeepLoc as a ubiquitous accurate and low-overhead localization system.
Structure and thermodynamics in the linear modified Poisson-Boltzmann theories in restricted primitive model electrolytes
Creators: name: Bhuiyan, L. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Structure and thermodynamics in restricted primitive model electrolytes are examined using three recently developed versions of a linear form of the modified Poisson-Boltzmann equation. Analytical expressions for the osmotic coefficient and the electrical part of the mean activity coefficient are obtained and the results for the osmotic and the mean activity coefficients are compared with that from the more established mean spherical approximation, symmetric Poisson-Boltzmann, modified Poisson-Boltzmann theories, and available Monte Carlo simulation results. The linear theories predict the thermodynamics to a remarkable degree of accuracy relative to the simulations and are consistent with the mean spherical approximation and modified Poisson-Boltzmann results. The predicted structure in the form of the radial distribution functions and the mean electrostatic potential also compare well with the corresponding results from the formal theories. The excess internal energy and the electrical part of the mean activity coefficient are shown to be identical analytically for the mean spherical approximation and the linear modified Poisson-Boltzmann theories.
description: 17 pages, 10 figures
Le Ricerche di Guillame Budé sul lessico giuridico greco
Creators: name: Sanchi, Luigi-Alberto
Publisher: name: Dike
Year: 2015

description: A vast enquiry on Greek prose language written in Latin, Guillaume Budé’s Commentarii linguae Graecae (1529, 1548) are also a “thesaurus” of the Greek legal vocabulary that can still be helpful today. Based on the careful study of a large number of Greek quotations, Budé’s Commentarii are conceived like modern dictionaries, except the alphabetical order, which can be obtained thanks to the two Index, Greek and Latin. In fact, Budé’s complex scheme can be reconstructed and corresponds to the evolution of his project. He initially wanted to provide French scholars with a lexicon of legal words that would help the readers with specific meanings found in orators and historians, whom Budé precisely quotes when necessary. The present contribution aims at both showing how to read Budé’s work in its context and giving a comprehensive list of the Greek legal words and expressions which are explained in the first section of Commentarii, with a large number of identified quotations.
 Vasto studio linguistico della prosa greca redatto in latino, i Commentarii linguae Graecae (1529, 1548) di Guillaume Budé costituiscono altresì un “thesaurus” del lessico giuridico greco che ancor oggi conserva una sua utilità. Fondati sull’esame puntuale di un ampio numero di passi di autori greci, i Commentarii di Budé sono concepiti come i moderni dizionari, ad eccezione dell’ordine alfabetico, che viene comunque fornito attraverso i due indici, greco e latino. Il complesso schema messo in atto da Budé può in effetti essere ricostituito; esso corrisponde all’evoluzione del suo piano di lavoro. Egli volle dapprima offrire agli studiosi francesi un lessico giuridico per aiutarli con i significati specializzati che occorrono nella lettura degli oratori e degli storici, testualmente citati ogni volta che Budé lo ritenne necessario. Il presente contributo intende, da un lato, dare indicazioni per leggere l’opera di Budé nel suo contesto e, dall’altro lato, fornire una lista il più possible comprensiva dei termini e delle espressioni giuridiche spiegate nella prima sezione dei Commentarii, con un largo numero di citazioni identificate.
description: Dike, Vol 17 (2014)
Thermodynamics of the coupled spin-dimer system TlCuCl3 close to a quantum phase transition
Creators: name: Lorenz, T.
name: Stark, S.
name: Heyer, O.
name: Hollmann, N.
name: Vasiliev, A.
name: Oosawa, A.
name: Tanaka, H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present thermal expansion alpha, magnetostriction and specific heat C measurements of \tal, which shows a quantum phase transition from a spin-gap phase to a Neel-ordered ground state as a function of magnetic field around H_{C0}->4.8T. Using Ehrenfest's relation, we find huge pressure dependencies of the spin gap for uniaxial as well as for hydrostatic pressure. For T->0 and H->H_{C0} we observe a diverging Grueneisen parameter Gamma(T)=alpha/C, in qualitative agreement with theoretical predictions. However, the predicted individual temperature dependencies alpha(T) and C(T) are not reproduced by our experimental data.
description: 6 pages including 7 figures, contribution to the III Joint European Magnetic Symposia 2006, San Sebastian
Discharge of elongated grains from silo with rotating bottom
Creators: name: To, Kiwing
name: Mo, Yi-Kai
name: Pongó, Tivadar
name: Börzsönyi, Tamás
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the flow of elongated grains (wooden pegs of length $L$=20 mm with circular cross section of diameter $d_c$=6 and 8 mm) from a silo with a rotating bottom and a circular orifice of diameter $D$. In the small orifice range ($D/d<5$) clogs are mostly broken by the rotating base, and the flow is intermittent with avalanches and temporary clogs. Here $d\equiv(\frac{3}{2}d_c^2L)^{1/3}$ is the effective grain diameter. Unlike for spherical grains, for rods the flow rate $W$ clearly deviates from the power law dependence $W\propto (D-kd)^{2.5}$ at lower orifice sizes in the intermittent regime, where $W$ is measured in between temporary clogs only. Instead, below about $D/d<3$ an exponential dependence $W\propto e^{κD}$ is detected. Here $k$ and $κ$ are constants of order unity. Even more importantly, rotating the silo base leads to a strong -- more than 50% -- decrease of the flow rate, which otherwise does not depend significantly on the value of $ω$ in the continuous flow regime. In the intermittent regime, $W(ω)$ appears to follow a non-monotonic trend, although with considerable noise. A simple picture, in terms of the switching from funnel flow to mass flow and the alignment of the pegs due to rotation, is proposed to explain the observed difference between spherical and elongated grains. We also observe shear induced orientational ordering of the pegs at the bottom such that their long axes in average are oriented at a small angle $\langleθ\rangle \approx 15^\circ$ to the motion of the bottom.
description: 9 pages, 11 figures
D5.1 Ecosystem analysis and specification of B&E KPIs
Creators: name: Darzanos, George
name: Kalogiros, Costas
name: Papakonstantinopoulou, Katia
name: Stamoulis, George
name: Zois, George
name: Muschamp, Paul
name: Caruso, Giuseppa
name: Anastasius Gavras
name: Weiss, Maria Barros
name: Hanne Kristine Hallingby,
name: Lønsethagen, Håkon
name: Diego Lopez,
name: Ordoñez-Lucena, Jose A.
Publisher: name: Zenodo
Year: 2019

description: This document provides suggestions for actor roles for the 5G-VINNI facility and the complex 5G
 ecosystem. Based on this the document elaborates on implications for 5G business relationships and
 business models.
 The results of a SWOT (Strengths, Weaknesses, Opportunities, and Threats) analysis of the 5G-VINNI
 facility are reported. By systematically combining the SWOT input it is possible to suggest both
 forward leaning strategies, and more defensive ones.
 The document contains an overview of the verticals’ innovation potential that the 5G-VINNI facility
 can enable.
 Furthermore, it provides the basis for enabling business validation of the 5G-VINNI facility by
 establishing Business and Economic KPIs concerning topics such as cost efficiency, value creation, and
 entry barriers.
Working toward the public interest: integrating public and policy
Creators: name: Hoff, Terry D.
Publisher: name: University of British Columbia
Year: 2008

description: The issue of public involvement in public policy planning is of fundamental importance for professional planners, public policy, and ultimately a problem of democratic governance. However, despite the attention given to this issue in literature and in practice, there is little agreement on the theoretical basis of public involvement and little consistency in the application of public involvement in professional practice. Planners have a responsibility to consider the ways in which their policy planning actions contribute to the public interest. How planners deal with this responsibility is both a matter of personal commitment and a matter of professional strategy. This thesis concludes that policy planning should be ethically purposeful in pursuing democratic ideals, yet strategic and pragmatic in being relevant to nature of the policy issue and specific policy situation. To achieve these objectives policy planning should be procedurally and substantively responsive to the publics directly affected by the policy issue. Procedurally affected publics should have a fair opportunity to express their values and interests regarding policy issues; substantively, planners should respect citizen's values and their context-specific knowledge of issues and potential policy actions. However, within the policy environment of local government, planners must also serve the decision making responsibilities of elected representatives, and promote the efficiency of public administration. The political and administrative context of policy planning offers both constraints and opportunities for public involvement. Planners must pragmatically adapt to the conditions of the policy environment in order to reconcile their often conflicting obligations to political superiors and the general public interest. Planners do have the ability to influence the process and content of public policy, and should employ this influence to promote the responsiveness of public institutions and public policy to the public. While responsiveness to affected publics does not guarantee policy success, this study concludes that the purposeful and strategic role of public involvement can both enhance the accountability of policy to the public, and reconcile the planner’s obligations to political superiors.
Αισχρολογία στον αρχαίο ελληνικό κόσμο: κωμωδία και ιαμβική ποίηση
Creators: name: Παπαδοπούλου, Δάφνη Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αισχρολογία
Αριστοφάνης
Κωμωδία
Obscenity
Aristophanes
Comedy

description: Μία πολύ καλά κρυμμένη και σχεδόν άγνωστη πτυχή της ζωής των αρχαίων Ελλήνων αποτελεί η αισχρολογία οι κυριολεκτικές δηλαδή και ευφημιστικές λέξεις ή/και φράσεις που χρησιμοποιούνταν για να γίνει αναφορά σε διάφορες περιοχές ταμπού. Σκοπός της παρούσας εργασίας είναι η ανίχνευση και καταγραφή αυτών των λέξεων ή/και φράσεων καθώς και η ταξινόμησή τους στις διάφορες περιοχές ταμπού. Μέσω της περιήγησης στα σωζόμενα αριστοφανικά κείμενα αλλά και στην ιαμβική ποίηση του Αρχίλοχου, του Ιππώνακτα και του Σιμωνίδη, καταλήγουμε σε ένα σώμα λημμάτων – λεξημάτων που φαίνεται να χρησιμοποιούνταν κατά την αρχαιότητα, είτε συστηματικά, είτε αποσπασματικά. Κάποιες από τις λέξεις – φράσεις επιβιώνουν μέχρι και σήμερα στο λεξιλόγιο της Κοινής Νεοελληνικής Γλώσσας, είτε ως αισχρολογίες, είτε ως ορθοφημισμοί.
description: A very well-hidden and almost unknown aspect of the life on ancient Greek people is obscenity: the literal and euphemistic use of words or/and phrases that people used to use in order to refer to various taboo areas. The purpose of this paper is both the detection and the register of those words and/or phrases and their classification in the taboo areas. Through our wandering in the comedic aristophanic corpus and in the iambic poetry of Archilochus, Hipponax and Simonides, we end up in a corpus of lexical entries – lexemes, that seem to be used during the ancient times, either on a regular basis or fragmentarily. Some of those words and/or phrases are still surviving in the vocabulary of Standard Modern Greek language as obscenities, while others are only used as orthophemisms.
Phase-conjugate optical coherence tomography
Creators: name: Erkmen, Baris I.
name: Shapiro, Jeffrey H.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum optical coherence tomography (Q-OCT) offers a factor-of-two improvement in axial resolution and the advantage of even-order dispersion cancellation when it is compared to conventional OCT (C-OCT). These features have been ascribed to the non-classical nature of the biphoton state employed in the former, as opposed to the classical state used in the latter. Phase-conjugate OCT (PC-OCT), introduced here, shows that non-classical light is not necessary to reap Q-OCT's advantages. PC-OCT uses classical-state signal and reference beams, which have a phase-sensitive cross-correlation, together with phase conjugation to achieve the axial resolution and even-order dispersion cancellation of Q-OCT with a signal-to-noise ratio that can be comparable to that of C-OCT.
description: 4 pages, 3 figures
Η χρήση των θεραπευτικών μονοκλωνικών αντισωμάτων στη νευρολογία
Creators: name: Νατσής, Κωνσταντίνος Στεργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Εκπαιδευτικό υλικό για φυτά
Οδηγός δραστηριοτήτων για φυτά
Περιβαλλοντική εκπαίδευση
Teaching material for plants
Activities guide for plants
Environmental education

description: Ο σκοπός της παρούσας μεταπτυχιακής διπλωματικής εργασίας είναι η εκτενής ανασκόπηση της βιβλιογραφίας για τη χρήση των θεραπευτικών μονοκλωνικών αντισωμάτων στις νευρολογικές παθήσεις. Περιλαμβάνει το σύνολο των διαφορετικών μονοκλωνικών αντισωμάτων που έχουν δοκιμαστεί στις διάφορες κατηγορίες νευρολογικών παθήσεων ανεξαρτήτως από το αν έχουν λάβει επίσημη ένδειξη για τη χορήγησή τους ή όχι. Επίσης γίνεται αναλυτική αναφορά σε ορισμένες βασικές έννοιες που αφορούν τα μονοκλωνικά αντισώματα όπως είναι η δομή, ο τρόπος παραγωγής και η ονοματολογία τους.
description: The aim of this study is to provide an extensive review of the literature on the use of therapeutic monoclonal antibodies in neurological diseases. Numerous monoclonal antibodies that have been tested in all aspects of neurology are included, regardless of whether they have received official approval for their administration or not. There is also a detailed reference to basic concepts of monoclonal antibodies such as their structure, mode of production and nomenclature.
description: Σε συνεργασία με: Ιατρικής (Δημοκρίτειο Πανεπιστήμιο Θράκης)
On discretizing sea-ice dynamics on triangular meshes using vertex, cell or edge velocities
Creators: name: Danilov, S.
name: Mehlmann, C.
name: Fofonova, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: Discretization of the equations of Viscous Plastic and Elastic Viscous Plastic (EVP) sea ice dynamics on triangular meshes can be done by placing discrete velocities at vertices, cells or edges. Since there are more cells and edges than vertices, the cell- and edge-based discretizations simulate more linear kinematic features at the same mesh than the vertex discretization. However, the discretization based on cell and edge velocities suffer from kernels in the strain rate or stress divergence operators and need either special strain rate computations as proposed here for cell velocities, or stabilization as proposed earlier for edge velocities. An elementary Fourier analysis clarifies how kernels are removed, and also shows that cell and edge velocity placement leads to spurious branches of stress divergence operator with large negative eigenvalues. Although spurious branches correspond to fast decay and are not expected to distort sea ice dynamics, they demand either smaller internal time steps or higher stability parameters in explicit EVP-like methods.
Imaging the atomic-scale electronic states induced by a pair of hole dopants in Ca2CuO2Cl2 Mott insulator
Creators: name: Li, Haiwei
name: Ye, Shusen
name: Zhao, Jianfa
name: Jin, Changqing
name: Wang, Yayu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use scanning tunneling microscopy to visualize the atomic-scale electronic states induced by a pair of hole dopants in Ca2CuO2Cl2 parent Mott insulator of cuprates. We find that when the two dopants approach each other, the transfer of spectral weight from high energy Hubbard band to low energy in-gap state creates a broad peak and nearly V-shaped gap around the Fermi level. The peak position shows a sudden drop at distance around 4 a0 and then remains almost constant. The in-gap states exhibit peculiar spatial distributions depending on the configuration of the two dopants relative to the underlying Cu lattice. These results shed important new lights on the evolution of low energy electronic states when a few holes are doped into parent cuprates.
description: 12 pages, 4 figures
Radio and optical observations of the possible AE Aqr twin, LAMOST J024048.51+195226.9
Creators: name: Pretorius, M. L.
name: Hewitt, D. M.
name: Woudt, P. A.
name: Fender, R. P.
name: Heywood, I.
name: Knigge, C.
name: Miller-Jones, J. C. A.
name: Buckley, D. A. H.
name: Worters, H. L.
name: Potter, S. B.
name: Williams, D. R. A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Thorstensen (2020) recently argued that the cataclysmic variable (CV) LAMOST J024048.51+195226.9 may be a twin to the unique magnetic propeller system AE Aqr. If this is the case, two predictions are that it should display a short period white dwarf spin modulation, and that it should be a bright radio source. We obtained follow-up optical and radio observations of this CV, in order to see if this holds true. Our optical high-speed photometry does not reveal a white dwarf spin signal, but lacks the sensitivity to detect a modulation similar to the 33-s spin signal seen in AE Aqr. We detect the source in the radio, and measure a radio luminosity similar to that of AE Aqr and close to the highest so far reported for a CV. We also find good evidence for radio variability on a time scale of tens of minutes. Optical polarimetric observations produce no detection of linear or circular polarization. While we are not able to provide compelling evidence, our observations are all consistent with this object being a propeller system.
description: MNRAS, accepted
MBE Growth of Cubic InN
Creators: name: Schoermann, J.
name: As, D. J.
name: Lischka, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Cubic InN films were grown on top of a c-GaN buffer layer by rf-plasma assisted MBE at different growth temperatures. X-Ray diffraction investigations show that the c-InN layers consist of a nearly phase-pure zinc blende (cubic) structure with a small fraction of the wurtzite (hexagonal) phase grown on the (111) facets of the cubic layer. The content of hexagonal inclusions is decreasing with decreasing growth temperature. The full-width at half-maximum (FWHM) of c-InN (002) rocking curve is about 50 arcmin. Low temperature photoluminescence measurements reveal a band gap of about 0.61eV for cubic InN.
description: 3 pages with 3 figures; MRS Symposium, Fall Meeting 2006
Urinary levels of the acrolein conjugates of carnosine are associated with inhaled toxicants
Creators: name: O’Toole, Timothy E.
name: Li, Xiaohong
name: Riggs, Daniel W.
name: Hoetker, David J.
name: Yeager, Ray
name: Lorkiewicz, Pawel
name: Baba, Shahid P.
name: Cooper, Nigel G. F.
name: Bhatnagar, Aruni
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Cancer

description: The inhalation of air-borne toxicants is associated with adverse health outcomes which can be somewhat mitigated by enhancing endogenous anti-oxidant capacity. Carnosine is a naturally occurring dipeptide (β-alanine-L-histidine), present in high abundance in skeletal and cardiac muscle. This multi-functional dipeptide has anti-oxidant properties, can buffer intracellular pH, chelate metals, and sequester aldehydes such as acrolein. Due to these chemical properties, carnosine may be protective against inhaled pollutants which can contain metals and aldehydes and can stimulate the generation of electrophiles in exposed tissues. Thus, assessment of carnosine levels, or levels of its acrolein conjugates (carnosine-propanal and carnosine-propanol) may inform on level of exposure and risk assessment. We used established mass spectroscopy methods to measure levels of urinary carnosine (n = 605) and its conjugates with acrolein (n = 561) in a subset of participants in the Louisville Healthy Heart Study (mean age = 51 ± 10; 52% male). We then determined associations between these measures and air pollution exposure and smoking behavior using statistical modeling approaches. We found that higher levels of non-conjugated carnosine, carnosine-propanal, and carnosine-propanol were significantly associated with males (p < 0.02) and those of Caucasian ethnicity (p < 0.02). Levels of carnosine-propanol were significantly higher in never-smokers (p = 0.001) but lower in current smokers (p = 0.037). This conjugate also demonstrated a negative association with mean-daily particulate air pollution (PM2.5) levels (p = 0.01). These findings suggest that urinary levels of carnosine-propanol may inform as to risk from inhaled pollutants.
Mechanism of electron-beam manipulation of single dopant atoms in silicon
Creators: name: Markevich, Alexander
name: Hudak, Bethany M
name: Madsen, Jacob
name: Song, Jiaming
name: Snijders, Paul C
name: Lupini, Andrew R
name: Susi, Toma
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The precise positioning of dopant atoms within bulk crystal lattices could enable novel applications in areas including solid-state sensing and quantum computation. Established scanning probe techniques are capable tools for the manipulation of surface atoms, but at a disadvantage due to their need to bring a physical tip into contact with the sample. This has prompted interest in electron-beam techniques, followed by the first proof-of-principle experiment of bismuth dopant manipulation in crystalline silicon. Here, we use first principles modeling to discover a novel indirect exchange mechanism that allows electron impacts to non-destructively move dopants with atomic precision within the silicon lattice. However, this mechanism only works for the two heaviest group V donors with split-vacancy configurations, Bi and Sb. We verify our model by directly imaging these configurations for Bi, and by demonstrating that the promising nuclear spin qubit Sb can be manipulated using a focused electron beam.
description: 23 pages, 4 figures, 1 table
Η τιτλοποίηση απαιτήσεων ως σχεδιαζόμενη μέθοδος αντιμετώπισης των «κόκκινων δανείων»
Creators: name: Ζυγουλιάνου, Αικατερίνη Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Τιτλοποίηση απαιτήσεων
Μη Εξυπηρετούμενα Δάνεια (ΜΕΔ)
Τραπεζικό Δίκαιο
Securitization
Non – Performing Loans (NPLs)
Banking Law

description: Η τιτλοποίηση απαιτήσεων αποτελεί έναν νομικό και οικονομικό θεσμό, ο οποίος χρησιμοποιήθηκε και χρησιμοποιείται κατά κόρον από τις τράπεζες σε παγκόσμιο επίπεδο ως τρόπος άμεσης χρηματοδότησης και εξυγίανσης των ισολογισμών τους. Η τιτλοποίηση απαιτήσεων συνδέθηκε από πολύ νωρίς με τα μη εξυπηρετούμενα δάνεια (ΜΕΔ) ή κατά την ειδησεογραφική χρήση του όρου «κόκκινα δάνεια». Δια της τιτλοποίησης απαιτήσεων ο κίνδυνος που απορρέει από τα μη εξυπηρετούμενα ανοίγματα των τραπεζών μετακυλίεται από τα τραπεζικά ιδρύματα στην επενδυτική αγορά, με αποτέλεσμα να επιμερίζεται μεταξύ του επενδυτικού κοινού. Η παρούσα διατριβή πραγματεύεται τον τρόπο λειτουργίας της διαδικασίας της τιτλοποίησης, το ρόλο των συμμετεχόντων στη διαδικασία μερών καθώς και τις έννομες σχέσεις που αναπτύσσονται μεταξύ τους. Περαιτέρω, εξετάζονται οι κίνδυνοι που ελλοχεύουν στην τιτλοποίηση απαιτήσεων σε συνδυασμό με το ρόλο που διετέλεσε η τελευταία στην παγκόσμια οικονομική κρίση του 2007. Η ενίσχυση των τιτλοποίησεων των ελληνικών τραπεζών με την εισαγωγή του σχεδίου «Ηρακλής» το Δεκέμβριο του 2019 σε συνδυασμό με το νέο κύμα ΜΕΔ που αναμένεται να προκαλέσει η πανδημία του κορονοϊού καθιστά την θεματική περί του θεσμού της τιτλοποίησης πιο επίκαιρη από ποτέ.
description: Securitization is a legal and financial institution which was widely used and it is still used by the banks in a worldwide scale as a method of immediate financing and the consolidation of their balance sheets. From a very early stage, securitization was linked to Non – Performing Loans (NPLs) or “red loans” pursuant to the relevant news term. Through securitization the risk deriving from non – performing exposures of the banks is passed on by the banking institutions to the investment market. The present thesis addresses the operating mode of securitization, the role of the involved in the procedure parties and the legal relationships between the latter. Furthermore, the lurking dangers of the securitization are reported in combination with the role of securitization to the global financial crisis of 2007. The enhancement of Greek bank’s securitizations with the introduction of “Hercules” plan on December 2019 along with the new wave of NPLs which is anticipated due to the pandemic of Covid makes the securitization theme more timely than ever.