cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evidence for universality of tunable-barrier electron pumps
Creators: name: Giblin, Stephen P.
name: Fujiwara, Akira
name: Yamahata, Gento
name: Bae, Myung-Ho
name: Kim, Nam
name: Rossi, Alessandro
name: Möttönen, Mikko
name: Kataoka, Masaya
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We review recent precision measurements on semiconductor tunable-barrier electron pumps operating in a ratchet mode. Seven studies on five different designs of pumps have reported measurements of the pump current with relative total uncertainties around $10^{-6}$ or less. Combined with theoretical models of electron capture by the pumps, these experimental data exhibits encouraging evidence that the pumps operate according to a universal mechanism, independent of the details of device design. Evidence for robustness of the pump current against changes in the control parameters is at a more preliminary stage, but also encouraging, with two studies reporting robustness of the pump current against three or more parameters in the range of $\sim\!5 \times 10^{-7}$ to $\sim\!2 \times 10^{-6}$. This review highlights the need for an agreed protocol for tuning the electron pump for optimal operation, as well as more rigorous evaluations of the robustness in a wide range of pump designs.
description: 18 pages, 8 figures
Optimal observables for new-physics search at LEP2
Creators: name: Osland, P.
name: Pankov, A. A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: New observables σ_\pm for the process e^+e^-\toμ^+μ^- allow one to get more direct information on additional Z' boson effects than what is obtained from the canonical ones, σand A_{FB}. Their deviations from the Standard Model predictions have very specific energy dependences, which are precisely determined by SM parameters. At energies varying from TRISTAN to LEP2, one can uniquely predict the signs of Δσ_{\pm} induced by a Z' as well as the locations of their extrema and zeros. This unambiguous energy correlation could be quite useful in distinguishing effects due to Z' exchange from those caused by other new physics sources. Furthermore, there are two energy points, \sqrt{s_{+}}\simeq 78 GeV and \sqrt{s_{-}}\simeq 113 GeV, where the SM quantities σ_\pm^{SM} as well as the deviations Δσ_{\pm} attain their minimum values or vanish. These points could be very favourable for a search for new physics beyond the SM and beyond Z' effects.
description: LaTeX2e + 7 eps figures. References added, version to appear in Phys. Lett. B
Symmetries of the Kac-Peterson Modular Matrices of Affine Algebras
Creators: name: Gannon, Terry
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: The characters $χ_μ$ of nontwisted affine algebras at fixed level define in a natural way a representation $R$ of the modular group $SL_2(Z)$. The matrices in the image $R(SL_2(Z))$ are called the Kac-Peterson modular matrices, and describe the modular behaviour of the characters. In this paper we consider all levels of $(A_{r_1}\oplus\cdots\oplus A_{r_s})^{(1)}$, and for each of these find all permutations of the highest weights which commute with the corresponding Kac-Peterson matrices. This problem is equivalent to the classification of automorphism invariants of conformal field theories, and its solution, especially considering its simplicity, is a major step toward the classification of all Wess-Zumino-Witten conformal field theories.
description: 16 pp, plain tex
title: Appendix B: Transliterated Texts
Creators: name: Høyrup, Jens
Publisher: name: Max-Planck-Gesellschaft zur Förderung der Wissenschaften
Year: 2017

description: Key to Vocabulary and Standard Translations
AO 8862 #2
BM 13901 #1, #2, #10, #12, #14 and #23
BM 15285 #24
BM 85200+VAT 6599 #6 and #23
Db2–146
TMS VII #1 and #2
TMS VIII #1
TMS IX #1, #2 and #3
TMS XIII
TMS XVI #1
VAT 7532
VAT 8389 #1
VAT 8390 #1
VAT 8512
YBC 6504
YBC 6967
Footnotes
Fast rotational intensive grazing
Creators: name: Catalan, María
name: Palomo, Gonzalo
name: Moreno, Gerardo
Publisher: name: Zenodo
Year: 2017
Subjects: dehesas
montados
erosion
low-cost

description: The increased demand for meat is driven by a rising human population, and a dramatic growth in meat consumption per person. Farmers and scientists have sought to curb the adverse environmental impacts of livestock by increasing production efficiency, and reducing its contribution to human consumption. Reduction in livestock feed components, which compete with human food crop production, is one approach to mitigating negative environmental impacts and strengthening future food security. Mediterranean pastures, such as dehesa and montado, face considerable challenges. Continuous grazing results in dramatic seasonal variations in grass production and difficulties in providing sufficient fodder for livestock throughout the year. Consequently, the dependence on external feed supplies compromises the profitability of many farms. Better adapted grazing management schemes are needed to enhance the resilience of the dehesas and montados.
Two Sculptures, One Master? A Technical Study of Two Rare Examples of Polychrome Sculptures Associated with “the Master of Saint Catherine of Gualino”, Italy, Fourteenth Century
Creators: name: de Bellaigue, Diana
name: Chloros, Jessica
name: Troalen, Lore
name: Hendriks, Laura
name: Lenglet, Justine
name: Castel, Jérôme
name: Dectot, Xavier
name: Haghipour, Negar
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Between the 1960s and 1990s art historian Giovanni Previtali identified a group of polychrome wood trecento sculptures from the Umbrian-Abruzzo region of Italy as the work of one hand. He named his artist the Maestro della Santa Caterina Gualino after one of the pieces considered to epitomize the style he had identified. Previtali's attribution has since been universally accepted in art historical publications and catalogs. This study tests this assertion through scientific analysis of two of the sculptures named in the group. A team from National Museums Scotland, Edinburgh and the Isabella Stewart Gardner Museum, Boston compared a statue of the Madonna and Child (Edinburgh) and Saint Agnes (Boston) using a variety of analytical tools. Cross-references were made to three other sculptures in the group to which access was gained. The results of this analysis highlight the challenges of testing stylistic associations in the laboratory. Despite taking a scientific approach to data collection and collation there is still much scope for subjectivity in interpretation. Rather than providing a conclusion, our work has opened the door wider still for multiple interpretations, illustrating the limitations of analysis in supporting definitive statements about the authorship of Medieval polychrome sculpture.
Density Fluctuations in an Electrolyte from Generalized Debye-Hueckel Theory
Creators: name: Lee, Benjamin P.
name: Fisher, Michael E.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: Near-critical thermodynamics in the hard-sphere (1,1) electrolyte is well described, at a classical level, by Debye-Hueckel (DH) theory with (+,-) ion pairing and dipolar-pair-ionic-fluid coupling. But DH-based theories do not address density fluctuations. Here density correlations are obtained by functional differentiation of DH theory generalized to {\it non}-uniform densities of various species. The correlation length $ξ$ diverges universally at low density $ρ$ as $(Tρ)^{-1/4}$ (correcting GMSA theory). When $ρ=ρ_c$ one has $ξ\approxξ_0^+/t^{1/2}$ as $t\equiv(T-T_c)/T_c\to 0+$ where the amplitudes $ξ_0^+$ compare informatively with experimental data.
description: 5 pages, REVTeX, 1 ps figure included with epsf. Minor changes, references added. Accepted for publication in Phys. Rev. Lett
Flemish Strings of Magnetic Solitons and a Non-Thermal Fixed Point in a One-Dimensional Antiferromagnetic Spin-1 Bose Gas
Creators: name: Fujimoto, Kazuya
name: Hamazaki, Ryusuke
name: Ueda, Masahito
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Thermalization in a quenched one-dimensional antiferromagnetic spin-1 Bose gas is shown to proceed via a non-thermal fixed point through annihilation of Flemish-string bound states of magnetic solitons. A possible experimental situation is discussed.
description: 7 pages, 5 figures (Supplemental material: 11 pages, 6 figures)
Lipeurus caponis
Creators: name: Gonza ́ Lez-Acun, Daniel A.
name: Palma, Ricardo L.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Lipeurus
Lipeurus caponis

description: Lipeurus caponis (Linnaeus, 1758)
 Pediculus caponis Linnaeus, 1758: 614.
 Ricinus caponis (Linnaeus, 1758); Latreille 1804: 110.
 Lipeurus caponis (Linnaeus, 1758); Clay 1938: 111, figs 1, 2a, b, 3a.
 Lipeurus (Lipeurus) caponis (Linnaeus, 1758); Séguy 1944: 193, figs 278–281.
 Lipeurus caponis Linn; Roman-Bolelli 1947: 5.
 Lipeurus caponis (Linnaeus, 1758); Hopkins & Clay 1952: 192.
 Lipeurus caponis Lineo, 1758 [sic]; Tagle 1953: 99.
 Lipeurus caponis Lineo, 1758 [sic]; Tagle 1966: 123.
 Lipeurus caponis; Torres et al. 1974: 116.
 Lipeurus caponis Linneo, 1758 [sic]; Alcaíno & Gorma 1999: 14.
 Lipeurus caponis (Linnaeus, 1758); González-Acuña et al. 2009: 182.
Neotype ♂ in NHML (see Clay & Hopkins 1950: 263).
 Type host: Gallus gallus (Linnaeus, 1758).
 Chilean hosts: Chrysolophus pictus Linnaeus, 1758; Gallus gallus domesticus Brisson, 1760.
 Other hosts: Colinus virginianus (Linnaeus, 1758); Gallus sonneratii Temminck, 1813; Gallus lafayettii Lesson, 1831; Gallus varius (Shaw, 1798); Phasianus colchicus Linnaeus, 1758; Meleagris gallopavo Linnaeus, 1758; Numida meleagris (Linnaeus, 1758) captive.
Chilean localities: Concepción: Region VIII; Valdivia: Region XIV.
Geographic distribution: Australasia; Eurasia; North, Central and South America.
 Chilean references: Roman-Bolelli (1947); Tagle (1953); Tagle (1966); Torres et al. (1974); Alcaíno & Gorma (1999); González-Acuña et al. (2009); this catalogue.
 Other significant references: Clay (1938); SÉguy (1944); Clay & Hopkins (1950: 262); Emerson (1956: 69, pl. 5); Palma (1996: 190); Price et al. (2003: 194); Martín-Mateo (2009: 73, fig. 17).
 Remarks: Lipeurus caponis was introduced to Chile and other countries by human agency with chickens. This louse species has spread onto a number of adventive hosts due to the human practice of mixing various species of game birds in captivity. Chrysolophus pictus is a new host record for this louse species based on a sample held in MONZ, and due to straggling from another host in captivity.
  Genus Meinertzhageniella Eichler, 1941
 Meinertzhageniella Eichler, 1940b. Zool. Anz. 130, 98. Type species: Lipeurus latus Piaget, 1880 = Meinertzhageniella latus (Piaget, 1880) (by original designation).
description: Published as part of Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L., 2021, An annotated catalogue of bird lice (Insecta: Phthiraptera) from Chile, pp. 1-151 in Zootaxa 5077 (1) on pages 81-82, DOI: 10.11646/zootaxa.5077.1.1, http://zenodo.org/record/5766642
Search for Proton Decay via p -> e+ pi0 in a Large Water Cherenkov Detector
Creators: name: Kamiokande Collaboration
name: Shiozawa, M.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have searched for proton decay via p -> e+ pi0 using data from a 25.5 kton-year exposure of the Super-Kamiokande detector. We find no candidate events with an expected background induced by atmospheric neutrinos of 0.1 events. From these data, we set a lower limit on the partial lifetime of the proton to be 1.6E33 years at a 90% confidence level.
description: 7 pages, 5 eps figures, revtex, submitted to PRL
Quantum solitons in spin-orbit-coupled Bose-Bose mixtures
Creators: name: Tononi, Andrea
name: Wang, Yueming
name: Salasnich, Luca
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Recent experimental and theoretical results show that weakly interacting atomic Bose-Bose mixtures with attractive interspecies interaction are stabilized by beyond-mean-field effects. Here we consider the peculiar properties of these systems in a strictly one-dimensional configuration, taking also into account the nontrivial role of spin-orbit and Rabi couplings. We show that when the value of inter- and intraspecies interaction strengths are such that mean-field contributions to the energy cancel, a self-bound bright soliton fully governed by quantum fluctuations exists. We derive the phase diagram of the phase transition between a single-peak soliton and a multipeak (striped) soliton, produced by the interplay between spin-orbit, Rabi couplings and beyond-mean-field effects, which also affect the breathing mode frequency of the atomic cloud. Finally, we prove that a phase imprinting of the single-peak soliton leads to a self-confined propagating solitary wave even in the presence of spin-orbit coupling.
description: 6 pages, 4 figures, published in Phys. Rev. A
A Novel Approach to Quantized Matrix Completion Using Huber Loss Measure
Creators: name: Esmaeili, Ashkan
name: Marvasti, Farokh
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper, we introduce a novel and robust approach to Quantized Matrix Completion (QMC). First, we propose a rank minimization problem with constraints induced by quantization bounds. Next, we form an unconstrained optimization problem by regularizing the rank function with Huber loss. Huber loss is leveraged to control the violation from quantization bounds due to two properties: 1- It is differentiable, 2- It is less sensitive to outliers than the quadratic loss. A Smooth Rank Approximation is utilized to endorse lower rank on the genuine data matrix. Thus, an unconstrained optimization problem with differentiable objective function is obtained allowing us to advantage from Gradient Descent (GD) technique. Novel and firm theoretical analysis on problem model and convergence of our algorithm to the global solution are provided. Another contribution of our work is that our method does not require projections or initial rank estimation unlike the state- of-the-art. In the Numerical Experiments Section, the noticeable outperformance of our proposed method in learning accuracy and computational complexity compared to those of the state-of- the-art literature methods is illustrated as the main contribution.
Effects of medium modifications of nucleon form factors on neutrino scattering in dense matter
Creators: name: Hutauruk, Parada T. P.
name: Oh, Yongseok
name: Tsushima, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Effects of the in-medium modifications of nucleon form factors on neutrino interaction in dense matter are presented by considering both the weak and electromagnetic interactions of neutrinos with the constituents of the matter. A relativistic mean field and the quark-meson coupling models are respectively adopted for the effective nucleon mass and in-medium nucleon form factors. We calculate the cross-section of neutrino scattering as well as the neutrino mean free path. We found the cross sections of neutrino scattering in cold nuclear medium decreases when the in-medium modifications of the nucleon weak and electromagnetic form factors are taken into account.This reduction results in the enhancement of the neutrino mean free path, in particular at the baryon density of around a few times of the normal nuclear matter density.
description: 4 pages, 2 figures, accepted for the QNP2018 proceedings, a talk given at QNP2018, 8th International Conference on Quarks and Nuclear Physics (QNP2018), November 13-17, 2018, Tsukuba, Ibaraki, Japan
Meinertzhageniella schubarti Eichler 1941
Creators: name: Gonza ́ Lez-Acun, Daniel A.
name: Palma, Ricardo L.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Meinertzhageniella
Meinertzhageniella schubarti

description: Meinertzhageniella schubarti Eichler, 1941
 Meinertzhageniella schubarti Eichler, 1941a: 373.
 Meinertzhageniella schubarti Eichler, 1941; Hopkins & Clay 1952: 206.
 Meinertzhageniella schubarti Eichler, 1941; Cicchino & Castro 1998b: 110, 119.
 Meinertzhageniella schubarti Eichler, 1941; Price et al. 2003: 198.
Holotype ♀ in ZMHG (see Weidner 1966: 258).
 Type host: Pterocnemia pennata pennata (d’Orbigny, 1834).
 Chilean host: Pterocnemia pennata pennata (d’Orbigny, 1834).
Other hosts: None.
Chilean locality: Punta Arenas: Region XII.
Geographic distribution: Argentinean and Chilean Patagonia.
Chilean references: Eichler (1941a); Weidner (1966: 258).
 Other significant references: Cicchino & Castro (1998b); Price et al. (2003).
 Remarks: The original description of Meinertzhageniella schubarti was based on three females from Chile, and it was recorded in Argentina later.
  Genus Naubates Bedford, 1930
  Subgenus Naubates Bedford, 1930
 Naubates Bedford, 1930. 16th Report Director Vet. Services Animal Ind. Union of South Africa 1930, 167. Type species: Esthiopterum fuliginosum (Taschenberg, 1882) = Naubates (Naubates) fuliginosus (Taschenberg, 1882) (by original designation).
description: Published as part of Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L., 2021, An annotated catalogue of bird lice (Insecta: Phthiraptera) from Chile, pp. 1-151 in Zootaxa 5077 (1) on page 82, DOI: 10.11646/zootaxa.5077.1.1, http://zenodo.org/record/5766642
Relaxation of Inter-Landau-level excitations in the Quatized Hall Regime
Creators: name: Dickmann, S.
name: Levinson, Y.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Relaxation of collective plasmon inter-Landau-level excitation is determined by emission of LO-phonons or by Auger-like processes when this emission is suppressed off the magneto-phonon resonance conditions. The decay of "one-cyclotron" magneto-plasmons with wave-vectors near the roton minimum is studied under the condition of filling $ν=1$. Some features of this relaxation should be helpful for the experimental detection of the magneto-rotons in a strongly correlated 2D electron gas.
description: Published: Physica E 5, 153-156 (2000)
The effect of disorder on the critical temperature of a dilute hard sphere gas
Creators: name: Gordillo, M. C.
name: Ceperley, D. M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have performed Path Integral Monte Carlo (PIMC) calculations to determine the effect of quenched disorder on the superfluid density of a dilute 3D hard sphere gas. The disorder was introduced by locating set of hard cylinders randomly inside the simulation cell. Our results indicate that the disorder leaves the superfluid critical temperature basically unchanged. Comparison to experiments of helium in Vycor is made.
description: 4 pages, 4 figures
Further signatures to support the tetraquark mixing framework for the two light-meson nonets
Creators: name: Kim, Hungchong
name: Kim, K. S.
name: Cheoun, Myung-Ki
name: Jido, Daisuke
name: Oka, Makoto
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work, we investigate additional signatures to support the tetraquark mixing framework that has been recently proposed as a possible structure for the two nonets, namely $a_0 (980)$, $K_0^* (800)$, $f_0 (500)$, $f_0 (980)$ in the light nonet, $a_0 (1450)$, $K_0^* (1430)$, $f_0 (1370)$, $f_0 (1500)$ in the heavy nonet. First, we advocate that the two nonets form the flavor nonet approximately satisfying the Gell-Mann--Okubo mass relation. Then we reexamine the mass ordering generated from the tetraquark nonets and show that this mass ordering is satisfied by the two nonets although the ordering in the heavy nonet is marginal. The marginal mass ordering however can be regarded as another signature for tetraquarks because it can be explained partially by the hyperfine masses calculated from the tetraquark mixing framework. The tetraquark mixing parameters are found to be independent of isospins giving additional support for the formation of the flavor nonets. In addition, we discuss the other approaches like two-quark pictures or meson-meson bound states, and their possible limitations in explaining the two nonets. As a peculiar signature distinguished from other approaches, we investigate the fall-apart coupling strengths into two vector mesons from our tetraquarks. Coupling strengths into the two-vector modes are found to enhance strongly in the heavy nonet while they are suppressed in the light nonet. The coupling ratios, which depend on the isospin channel, are found to be huge around $\sim 15$. This trend in the two-vector modes, which is opposite to that in the two-pseudoscalar fall-apart modes, can provide another testing ground for the tetraquark mixing framework. Some experimental evidences related to the phenomena are discussed particularly from the resonances belonging to the heavy nonet.
description: 15 pages, 2 figures, revised slighltly, version accepted for publication in PRD
Σχολική ηγεσία και διαχείριση κρίσεων: διερεύνηση του αντίκτυπου της πανδημίας COVID-19 στη σχολική πραγματικότητα και τρόποι διαχείρισης από διευθυντές σχολικών μονάδων
Creators: name: Μαξούρης, Παναγιώτης
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Σχολική ηγεσία
subject: Σχολική μονάδα
subject: Διαχείριση κρίσεων
subject: Πανδημία COVID-19

description: Το ξέσπασμα της πανδημίας λόγω της νόσου COVID-19 επέφερε πρωτοφανείς συνέπειες στον τομέα της εκπαίδευσης, ο οποίος βρέθηκε αντιμέτωπος με μια σειρά από προκλήσεις που αφορούσαν πρωτίστως τη διαφύλαξη της υγείας των μαθητών και των εκπαιδευτικών, καθώς και την απρόσκοπτη διεξαγωγή της εκπαιδευτικής διαδικασίας. Επιπλέον, δημιουργήθηκαν νέα δεδομένα όσον αφορά τη διοίκηση των σχολικών μονάδων. Συνεπώς, οι σχολικοί ηγέτες τέθηκαν ενώπιον νέων, πρωτόγνωρων και δύσκολα διαχειρίσιμων καταστάσεων, οι οποίες επέδρασαν σε μεγάλο βαθμό στις μέχρι τούδε ασκούμενες διευθυντικές πρακτικές, επηρεάζοντας καθοριστικά τον ρόλο τους. Στην παρούσα εργασία επιχειρείται η καταγραφή των απόψεων και εμπειριών 16 διευθυντών Γυμνασίων της Διεύθυνσης Δευτεροβάθμιας Β’ Αθήνας, με στόχο τη διερεύνηση των παραγόντων που επηρέασαν την αποτελεσματικότητα της άσκησης της σχολικής ηγεσίας κατά την περίοδο της πανδημίας COVID-19. Από την καταγραφή των αποτελεσμάτων της έρευνας προκύπτουν νέες προσεγγίσεις εκ μέρους των διευθυντών, όπως η συνεργατικότητα και η προσαρμοστικότητα, αλλά και νέα δεδομένα για τις επιμέρους δράσεις τους, την αδιάλειπτη προσπάθειά τους για τη διατήρηση θετικού σχολικού κλίματος και την επιτυχή έκβαση του εγχειρήματος της εξ αποστάσεως εκπαίδευσης. Πλέον, η διαχείριση κρίσεων και αλλαγών αποτελεί μια εξαιρετικά σημαντική δεξιότητα για έναν σχολικό ηγέτη.
Effects of charge symmetry breaking on form factors of the pion and kaon
Creators: name: Hutauruk, Parada T. P.
name: Bentz, Wolfgang
name: Cloët, Ian C.
name: Thomas, Anthony
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Effects of charge symmetry breaking associated with the $u$ and $d$ quark mass difference in the elastic form factors of the pion and kaon are presented. We use a confining version of the Nambu--Jona-Lasinio model. The pion and kaon are described as a dressed quark and antiquark bound states governed by the Bethe-Salpeter equation, and exhibit the properties of Goldstone bosons, with the pion mass difference given by $m_{π^{+}}^2 - m_{π^{0}}^2 \propto (m_u -m_d)^2$ as demanded by dynamical chiral symmetry breaking. We found significant charge symmetry breaking effects for realistic current quark mass ratios ($m_u/m_d \sim 0.5$) in the quark electromagnetic form factors of the pion and kaon. We also report the effects of charge symmetry breaking on the parton distribution functions, which are rather smaller than those found in the electromagnetic form factors.
description: 4 pages, 5 figures, accepted version for the QNP2018 proceedings, 8th International Conference on Quarks and Nuclear Physics (QNP2018), November 13-17, 2018, Tsukuba, Ibaraki, Japan
Η εκπαίδευση ως εργαλείο ένταξης των παιδιών-μεταναστών στην Ευρωπαϊκή Ένωση: ο ρόλος των εκπαιδευτικών στην Ελλάδα
Creators: name: Μιχαλολιάκου, Θεοδώρα
Publisher: name: Πανεπιστήμιο Πειραιώς
Year: 2021
Subjects: subject: Εκπαίδευση
subject: Παιδιά - μετανάστες
subject: Παιδιά - πρόσφυγες
subject: Εκπαιδευτικοί
subject: Ελλάδα
subject: Διαπολιτισμική εκπαίδευση
subject: Ευρωπαϊκή Ένωση
subject: Ένταξη

description: Τα κράτη-μέλη της ΕΕ τα τελευταία χρόνια, ανάμεσά τους και η Ελλάδα, ανέλαβαν τη φιλοξενία και την εκπαίδευση μεγάλου αριθμού ανθρώπων που εγκατέλειψαν τη χώρα τους. Στη συγκεκριμένη εργασία εξετάζεται το πλαίσιο της ένταξης των αλλοδαπών μαθητών -μεταναστών και προσφύγων- μέσα από τη διαδικασία της εκπαίδευσης. Στο πρώτο μέρος της εργασίας μελετούνται οι κύριοι παράγοντες που σχετίζονται με την εκπαίδευση αυτών των παιδιών στην Ευρώπη, όπως είναι ο εξευρωπαϊσμός και το θεσμικό πλαίσιο, οι μέθοδοι διαχείρισης της πολυπολιτισμικότητας και ο ρόλος του εκπαιδευτικού. Tο δεύτερο μέρος της εργασίας επικεντρώνεται στην έρευνα των γνώσεων, των απόψεων και των αντιλήψεων των εκπαιδευτικών της χώρας μας σχετικά με τους παράγοντες ένταξης που θεωρήθηκαν ότι αφορούν τους ίδιους. 114 εκπαιδευτικοί πρωτοβάθμιας και δευτεροβάθμιας εκπαίδευσης που εργάζονται ή εργάζονταν στο ίδιο σχολικό περιβάλλον με παιδιά-μετανάστες ή πρόσφυγες απάντησαν σε ερωτηματολόγιο. Από την ανάλυσή του διαπιστώθηκε ότι παρά την καθημερινή τους επαφή με αυτά τα παιδιά, δεν έχουν όλοι οι εκπαιδευτικοί τις γνώσεις που απαιτούνται για την καλύτερη ανταπόκριση στην εκπαίδευσή τους. Βρέθηκε, ακόμα, πως οι γνώσεις τους και γενικά οι απαντήσεις τους διαφοροποιούνταν θετικά σε εκπαιδευτικούς που είχαν υψηλότερο μορφωτικό επίπεδο, είχαν δεχτεί επιμόρφωση ή επιπλέον κατάρτιση και είχαν εμπειρία περισσότερων ετών. Τέλος, συμπεριλαμβάνονται προτάσεις για περαιτέρω έρευνα.
Different behaviour of the spin structure functions $g_1(x)$ and $h_1(x)$ at $x\to 0$
Creators: name: Troshin, S. M.
name: Tyurin, N. E.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider low-$x$ behaviour of the spin structure functions $g_1(x)$ and $h_1(x)$ in the unitarized chiral quark model which combines ideas on the constituent quark structure of hadrons with a geometrical scattering picture and unitarity. A nondiffractive singular low-$x$ dependence of $g^p_1(x)$ and $g_1^n(x)$ indicated by the recent SMC experimental data is described. A diffractive type smooth behaviour of $h_1(x)$ is predicted at small $x$. The expectations for the double-spin asymmetries in the low-mass Drell-Yan production at RHIC in the central region are discussed alongside.
description: LaTeX, 10 pages, 2 figures
Charge-spin current conversion in high quality epitaxial Fe/Pt systems: isotropic spin Hall angle along different in-plane crystalline directions
Creators: name: Guillemard, C.
name: Petit-Watelot, S.
name: Andrieu, S.
name: Rojas-Sánchez, J. -C.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report the growth of MgO[001]//Fe(6 nm)/MgO(7 nm) and MgO[001]//Fe(6 nm)/Pt(6 nm) by molecular beam epitaxy and show that the full characterization by spin-orbit ferromagnetic resonance (SO-FMR) allows the determination of magnetic anisotropies as by classical FMR-only studies. The spin mixing conductance of epitaxial Fe/Pt interface was measured to be (1.5 +- 0.5)x10^19 m^2, and the effective spin Hall angle (SHA), was estimated at different in-plane crystalline directions. It was found that SHA is the same in all directions. When taking into account high enough excitation frequencies to achieve uniform precession of magnetization, the effective spin hall angle for epitaxial Pt in Fe/Pt is 0.051 +- 0.005. We address about the proper conditions to determine those relevant spintronics parameters.
description: 11 pages, 4 figures
Onsager relations and hydrodynamic balance equations
Creators: name: Wu, M. W.
name: Cui, H. L.
name: Horing, N. J. M.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: In this paper we clarify the role of heat flux in the hydrodynamic balance equations, facilitating the formulation of an Onsager relation within the framework of this theory. Previously thought to be unobtainable from the present form of the theory [X.L. Lei, J. Cai, and L.M. Xie, Phys. Rev. B {\bf 38},1529 (1988)], our verification of the Onsager relation for linear particle and heat flux currents driven by electric fields and temperature gradients resolves a puzzling issue of long standing. Our results show that, for any temperature, when electron density is sufficiently high, the linear predictions of balance equation theory exactly satisfy the Onsager relation. The condition of high density is consonant with the requirement of strong electron-electron interactions for the validity of the Lei-Ting balance equations. Our results support the validity of this theory for a weakly nonuniform system. We also discuss a possible method of extending this theory to a system further removed from thermal equilibrium.
description: 21 pages, revtex, 5 figures are available upon request
The Tokyo Axion Helioscope Experiment
Creators: name: Minowa, Makoto
name: Moriyama, Shigetaka
name: Inoue, Yoshizumi
name: Namba, Toshio
name: Takasu, Yuko
name: Yamamoto, Akira
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A preliminary result of the solar axion search experiment at the University of Tokyo is presented. We searched for axions which could be produced in the solar core by exploiting the axion helioscope. The helioscope consists of a superconducting magnet with field strength of 4 Tesla over 2.3 meters. From the absence of the axion signal we set a 95 % confidence level upper limit on the axion coupling to two photons $g_{aγγ} < 6.0 \times 10^{-10} GeV^{-1}$ for the axion mass $m_a < 0.03$ eV. This is the first solar axion search experiment whose sensitivity to $g_{aγγ}$ exceeds the limit inferred from the solar age consideration.
description: 5 pages, 5 eps files included, uses espcrc2.sty, to be published in Proc. AXION WORKSHOP, Gainesville, Florida, 13-15 March 1998, ed. by P.Sikivie
Conventional mechanisms for "exotic" superconductivity
Creators: name: Agterberg, D. F.
name: Barzykin, Victor
name: Gor'kov, Lev. P.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider the pairing state due to the usual BCS mechanism in substances of cubic and hexagonal symmetry where the Fermi surface forms pockets around several points of high symmetry. We find that the symmetry imposed on the multiple pocket positions could give rise to a multidimensional nontrivial superconducting order parameter. The time reversal symmetry in the pairing state is broken. We suggest several candidate substances where such ordering may appear, and discuss means by which such a phase may be identified.
description: 5 pages, 2 figures
Polyphenols contents, heavy metals analysis and in vitro antibacterial activity of extracts from Cladanthus arabicus and Bubonium imbricatum of Moroccan Origin
Creators: name: Aghraz, Abdellah
name: Albergamo, Ambrogina
name: Qada Benameur
name: Salvo, Andrea
name: Larhsini, Mustapha
name: Markouk, Mohamed
name: Gervasi, Teresa
name: Cicero, Nicola
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology

description: Aim of this study was to evaluate polyphenols and major and trace elements of Cladanthus arabicus and Bubonium imbricatum, along with their in vitro antibacterial activity against six multidrug resistant Enterobacteriaceae (Escherichia coli S33/16, E. coli S34/16, Proteus mirabilis S32/16, Klebsiella pneumoniae S12/16, Enterobacter cloacae S5/16, and Salmonella sp S12/14). UV spectrophotometry, ultra-high-performance liquid chromatography coupled to mass spectrometry and inductively coupled plasma mass spectrometry were used to evaluate total polyphenol content, quali-quantitative profile of single polyphenols and inorganic elements of the extract. The antibacterial activity was investigated by standard methods. Twelve polyphenols were identified in both plants and these were more concentrated in B. imbricatum than C. arabicus extracts. High levels of minerals, essential trace elements and tolerable levels of heavy metals (Cd, As and Pb) were found. Furthermore, the extracts showed also a strong in vitro antibacterial activity, particularly versus E. coli S33/16 (MIC, 0.125 mg ml−1).
Supplemental data, figures, and tables from manuscript entitled, "A Two-Hour Fetal Glucagon Infusion Stimulates Hepatic Catabolism of Amino Acids in Fetal Sheep."
Creators: name: Tanner, Amelia
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 321501
subject: Foetal development and medicine

description: Supplemental data accompanying the manuscript entitled "A Two-Hour Fetal Glucagon Infusion Stimulates Hepatic Catabolism of Amino Acids in Fetal Sheep."
title: Integrated Navigation using MEMS-based Inertial, GPS and Sun Vector Measurements aboard the Spin-Stabilized PMWE-1 Sounding Rocket
Creators: name: BRAUN, Benjamin
name: BARF, Jochen
name: MARKGRAF, Markus
Publisher: name: Proceedings of the 8th European Conference for Aeronautics and Space Sciences. Madrid, Spain, 1-4 july 2019
Year: 2019
Subjects: NAVIGATION
VISION BASED NAVIGATION
IN-FLIGHT MEASUREMENTS
STATE ESTIMATION
IMAGE AND VIDEO PROCESSING

description: The paper presents the design of an integrated navigation system for spin-stabilized sounding rockets that fuses angular rate and acceleration measurements of a strap-down microelectromechanical inertial measurement unit, pseudorange and range rate measurements of a GPS receiver and Sun direction vector measurements which are extracted from high-resolution high-rate video images of a camera. Its performance with respect to the position and orientation accuracy is demonstrated by means of measurements that were recorded on the PMWE-1 sounding rocket in April 2018.
Theoretical evaluation of the screening-current-induced magnetic field in superconducting coils with tape wires
Creators: name: Mawatari, Yasunori
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically investigate the physical mechanism of the screening-current-induced field (SCIF) in solenoid coils wound with superconducting tape wires. We derive the direct relationship between the SCIF and the magnetization of tape wires, and a scaling law for the SCIF and the coil dimensions is demonstrated. A simple analytical expression of the SCIF is obtained as functions of current load factor, tape wire width, and the coil dimensions. We verify that the published data for the precise numerical computation of SCIF are roughly fitted by our theoretical results for flat coils where the height is smaller than the outer diameter.
description: 5 pages, 3 figures
Naubates (Guenterion) prioni
Creators: name: Gonza ́ Lez-Acun, Daniel A.
name: Palma, Ricardo L.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Psocodea
Philopteridae
Naubates
Naubates prioni

description: Naubates (Guenterion) prioni (Enderlein, 1908)
 Lipeurus prioni Enderlein, 1908: 454, figs 194, 196–199.
 Esthiopterum clypeatum Enderlein, 1908 [sic]; Harrison 1916: 140. In part.
 Naubates clypeatus Harrison, 1937: 31 (not Lipeurus clypeatus Giebel, 1874).
 Naubates prioni (Enderlein, 1908); Hopkins & Clay 1952: 235.
 Naubates prioni (Enderlein, 1908); Timmermann 1961b: 187, fig. 8.
 Naubates prioni (Enderlein, 1908); Timmermann 1965: 123, figs 62a–b, pl. 3: fig. 3.
 Naubates prioni (Enderlein, 1908); Clay & Moreby 1967: 162, 168, fig. 89.
 Naubates prioni (Enderlein, 1908); Mey 1994: 24, figs 9–10.
 Naubates (Guenterion) prioni (Enderlein, 1908); Palma & Pilgrim 2002: 35, figs 16, 23, 41, 46, 51, 64. Naubates (Guenterion) prioni (Enderlein, 1908); Palma 2017: 144.
Lectotype ♂ in ZMHU (see Göllner-Scheiding 1973: 41; Palma & Pilgrim 2002: 36).
 Type host: Pachyptila desolata (Gmelin, 1789).
 Chilean host: Pachyptila belcheri (Mathews, 1912).
 Other hosts: Pachyptila vittata (G.Forster, 1777); Pachyptila salvini (Mathews, 1912); Pachyptila belcheri (Mathews, 1912); Pachyptila turtur (Kuhl, 1820); Pachyptila crassirostris crassirostris (Mathews, 1912); Pachyptila crassirostris pyramidalis Fleming, 1939; Pachyptila crassirostris flemingi Tennyson & Bartle, 2005.
Chilean localities: La Rinconada, Antofagasta: Region II; Isla Noir: Region XII; Mehuín (Valdivia): Region XIV.
Geographic distribution: Southerm Hemisphere.
Chilean reference: Palma & Pilgrim (2002: 39).
 Other significant references: Harrison (1937); Timmermann (1961b; 1965); Clay & Moreby (1967); Mey (1994); Palma (1996: 193); Palma & Pilgrim (2002); Price et al. (2003: 199); Page et al. (2004: 638, 649); Hänel & Palma (2007: 113, 125, 130); Palma (2010: 408); Palma (2017).
 Remarks: Naubates (Guenterion) prioni is highly prevalent and abundant on all its hosts, and predominantly found on their wings (Palma & Pilgrim 2002: 36).
  Genus Ornithobius Denny, 1842
 Ornithobius Denny, 1842. Mon. Anopl. Brit. 1842, 183. Type species: Ornithobius cygni (Linnaeus, 1758) (by subsequent designation). As a subgenus of Philopterus.
description: Published as part of Gonza ́ Lez-Acun, Daniel A. & Palma, Ricardo L., 2021, An annotated catalogue of bird lice (Insecta: Phthiraptera) from Chile, pp. 1-151 in Zootaxa 5077 (1) on page 84, DOI: 10.11646/zootaxa.5077.1.1, http://zenodo.org/record/5766642
Localization in a random phase-conjugating medium
Creators: name: Blaauboer, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We theoretically study reflection and transmission of light in a one-dimensional disordered phase-conjugating medium. Using an invariant imbedding approach a Fokker-Planck equation for the distribution of the probe light reflectance and expressions for the average probabilities of reflection and transmission are derived. A new crossover length scale for localization of light is found, which depends on the competition between phase conjugation and disorder. For weak disorder, our analytical results are in good agreement with numerical simulations.
description: RevTex, 4 pages, 4 figures
title: Ethiopian Journals of Environment and Development, Vol. 3 No. 2 (2021): ETHNOBOTANICAL STUDY OF MEDICINAL PLANTS IN ALE SPECIAL DISTRICT, SOUTHERN ETHIOPIA
title: ETHNOBOTANICAL STUDY OF MEDICINAL PLANTS IN ALE SPECIAL DISTRICT, SOUTHERN ETHIOPIA
titleType: AlternativeTitle
Creators: name: Ethiopian Journals Of Environment And Development
Publisher: name: Ethiopian Journals of Environment and Development
Year: 2021

description: Abstract
An Ethno-botanical study was carried out to investigate the type, associated knowledge and practices of
medicinal plants used by the local people in Ale Special District, SNNPR, Ethiopia. Ninety informants were
selected by preferential sampling technique. Ethnobotanical data about traditional medicinal plant names
and associated knowledge such as use, remedy preparation, administration, and others were collected using semi-structured interview, field observation, and focus group discussion. Informant consensus, preference ranking, direct matrix ranking, informant consensus factor and fidelity level were computed. A total of 72 medicinal plant species belonging to 68 genera and 39 families were documented.
The Dynamic Exponent of the Two-Dimensional Ising Model and Monte Carlo Computation of the Sub-Dominant Eigenvalue of the Stochastic Matrix
Creators: name: Nightingale, M. P.
name: Blöte, H. W. J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We introduce a novel variance-reducing Monte Carlo algorithm for accurate determination of autocorrelation times. We apply this method to two-dimensional Ising systems with sizes up to $15 \times 15$, using single-spin flip dynamics, random site selection and transition probabilities according to the heat-bath method. From a finite-size scaling analysis of these autocorrelation times, the dynamical critical exponent $z$ is determined as $z=2.1665$ (12).
Nuclear Uncertainties in the Determination of Proton PDFs
Creators: name: Ball, Richard D.
name: Nocera, Emanuele R.
name: Pearson, Rosalyn L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show how theoretical uncertainties due to nuclear effects may be incorporated into global fits of proton parton distribution functions (PDFs) that include deep-inelastic scattering and Drell-Yan data on nuclear targets. We specifically consider the CHORUS, NuTeV and E605 data included in the NNPDF3.1 fit, which used Pb, Fe and Cu targets, respectively. We show that the additional uncertainty in the proton PDFs due to nuclear effects is small, as expected, and in particular that the effect on the $\bar{d}/\bar{u}$ ratio, the total strangeness $s+\bar{s}$, and the strange valence distribution $s-\bar{s}$ is negligible.
description: 34 pages, 15 figures, 4 tables - version accepted for publication in Eur. Phys. J. C
Cohomology and Deformation of Leibniz Pairs
Creators: name: Flato, M.
name: Gerstenhaber, M.
name: Voronov, A. A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Cohomology and deformation theories are developed for Poisson algebras starting with the more general concept of a Leibniz pair, namely of an associative algebra $A$ together with a Lie algebra $L$ mapped into the derivations of $A$. A bicomplex (with both Hochschild and Chevalley-Eilenberg cohomologies) is essential.
description: 15 pages
CP Violation By Soft Supersymmetry Breaking Terms in Orbifold Compactifications
Creators: name: Bailin, D.
name: Kraniotis, G. V.
name: Love, A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The possibility of spontaneous breaking of CP symmetry by the expectation values of orbifold moduli is investigated with particular reference to $CP$ violating phases in soft supersymmetry breaking terms. The effect of different mechanisms for stabilizing the dilaton and the form of the non-perturbative superpotential on the existence and size of these phases is studied. Non-perturbative superpotentials involving the absolute modular invariant $j(T)$, such as may arise from F-theory compactifications, are considered.
description: LaTeX file 12 pages, A reference amended and a typo corrected. To appear in Phys.Lett.B
Topology and exceptional points of massive Dirac models with generic non-Hermitian perturbations
Creators: name: Rui, W. B.
name: Zhao, Y. X.
name: Schnyder, Andreas P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, there has been a lot of activity in the research field of topological non-Hermitian physics, partly driven by fundamental interests and partly driven by applications in photonics. However, despite these activities, a general classification and characterization of non-Hermitian Dirac models that describe the experimental systems is missing. Here, we present a systematic investigation of massive Dirac models on periodic lattices, perturbed by general non-Hermitian terms. We find that there are three different types of non-Hermitian terms. For each case we determine the bulk exceptional points, the boundary modes, and the band topology. Our findings serve as guiding principles for the design of applications, for example, in photonic lattices. For instance, periodic Dirac systems with non-Hermitian mass terms can be used as topological lasers. Periodic Dirac systems with non-Hermitian anti-commuting terms, on the other hand, exhibit exceptional points at the surface, whose non-trivial topology could be utilized for optical devices.
description: 6 pages, 2 figures + 4 pages of supplemental material
Pion structure in a nuclear medium
Creators: name: Hutauruk, Parada. T. P.
name: Oh, Yongseok
name: Tsushima, K.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The structure and electroweak properties of the pion in symmetric nuclear matter are presented in the framework of the Nambu--Jona-Lasinio model. The pion is described as a bound state of a dressed quark-antiquark pair governed by the Bethe-Salpeter equation. For the in-medium current-light-quark properties we use the quark-meson coupling model, which describes successfully the properties of hadron in a nuclear medium. We found that the light-quark condensates, the pion decay constant and pion-quark coupling constant decrease with increasing nuclear matter density. We then predict the modifications of the charge radius of the charged pion in nuclear matter.
description: 4 pages, 6 figures, accepted version for the QNP2018 proceedings, 8th International Conference on Quarks and Nuclear Physics (QNP2018), November 13-17, 2018, Tsukuba, Ibaraki, Japan