cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Αναπαραστάσεις της απώλειας του παππού σε παιδικά βιβλία για μικρά παιδιά : Μια διδακτική παρέμβαση δημιουργικής γραφής
Creators: name: Μπουγιάλα, Ζωή Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Απώλεια παππού
Εικονογραφημένα βιβλία
Δημιουργική γραφή
The loss of a grandfather
Illustrated children’s book
Creative writing

description: Σκοπός σε αυτή τη διατριβή είναι να ερευνήσουμε πώς τα εικονογραφημένα παιδικά βιβλία μπορούν να λειτουργήσουν ως μέσο για την προβολή και την κατανόηση της έννοιας του θανάτου στα παιδιά και ως μέσο διδακτικής παρέμβασης δημιουργικής γραφής για την κατανόηση και έκφραση των συναισθημάτων. Βάσει αυτού του σκοπού, στόχος της έρευνας είναι να δείξουμε πώς οι μαθητές μπορούν να κατανοήσουν και να εκφράσουν τα συναισθήματά τους για τον θάνατο του παππού μέσω του εργαλείου της δημιουργικής γραφής. Προτείνουμε διδακτικές παρεμβάσεις δημιουργικής γραφής με χρήση εικονογραφημένων παιδικών βιβλίων με θέμα τον θάνατο του παππού με σκοπό την κατανόηση και την έκφραση των συναισθημάτων των παιδιών. Από την έρευνά μας προκύπτει το συμπέρασμα ότι τα εικονογραφικά παιδικά βιβλία αποτελούν ένα πολύ εύχρηστο εργαλείο που μπορεί να χρησιμοποιηθεί στη διδακτική της δημιουργικής γραφής με ποικίλους τρόπους. Ακόμη, η δημιουργική γραφή εκτός από τα οφέλη στην παραγωγή του προφορικού και του γραπτού λόγου προσφέρεται και ως μέσω κατανόησης και έκφρασης συναισθημάτων.
description: The purpose of this thesis is to investigate how illustrated children's books can serve as a means of promoting and understanding the concept of death in children and as a means of teaching creative writing to understand and express emotions. Based on this purpose, the aim goal of the research is to show that how students can understand and express their feelings about the death of their grandfather through the tool of creative writing. In conclusion we suggest teaching creative writing with the use of illustrated children's books on the subject of the death of the grandfather in order to understand and express children’s feelings. Our research concludes that illustrated children's books are a very easy-to-use tool that can be used in teaching creative writing in variable ways. While creative writing, in addition to the benefits in the production of oral and written speech, is also offered as a means of understanding and expressing emotions.
Karte vom Nordsudan
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 16 (2005): Der Antike Sudan
Multiscale molecular kinetics by coupling Markov state models and reaction-diffusion dynamics
Creators: name: del Razo, Mauricio J.
name: Dibak, Manuel
name: Schütte, Christof
name: Noé, Frank
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Biological Physics (physics.bio-ph)
subject: Computational Physics (physics.comp-ph)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences
subject: 92C40, 60J70, 60Jxx, 60J22, 60J60, 65-XX, 37N25

description: A novel approach to simulate simple protein-ligand systems at large time- and length-scales is to couple Markov state models (MSMs) of molecular kinetics with particle-based reaction-diffusion (RD) simulations, MSM/RD. Currently, MSM/RD lacks a mathematical framework to derive coupling schemes; is limited to isotropic ligands in a single conformational state, and is lacking a multi-particle extensions. In this work, we address these needs by developing a general MSM/RD framework by coarse-graining molecular dynamics into hybrid switching diffusion processes. Given enough data to parametrize the model, it is capable of modeling protein-protein interactions over large time- and length-scales, and it can be extended to handle multiple molecules. We derive the MSM/RD framework, and we implement and verify it for two protein-protein benchmark systems and one multiparticle implementation to model the formation of pentameric ring molecules. To enable reproducibility, we have published our code in the MSM/RD software package.
PSSOH Agenda 2024
Creators: name: Miljković, Nadica
name: Cvetanović, Miloš
name: Bjelić, Miloš
Publisher: name: Zenodo
Year: 2024
Subjects: free software
open-source software
open educational resources
open hardware
electrical engineering
computer science
gender equality
open science
open research data

description: Agenda for the seventh PSSOH conference (http://pssoh.etf.bg.ac.rs/) in English.

Agenda za sedmu PSSOH konferenciju (http://pssoh.etf.bg.ac.rs/) na engleskom jeziku.
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 16 (2005): Der Antike Sudan
On recent constraints for the minimum scale of a small compact universe with three-torus topology
Creators: name: Lee, Henry
Publisher: name: University of British Columbia
Year: 2008

description: We have embarked upon simple tests to gauge the validity of assumptions made by Fang and Liu in their assessment of opposite quasar pairs as a probe of global topology in the universe. Constraints for the scale of a three-torus (T-3) universe obtained from searches of opposite pairs of quasars by Fang and Liu have been claimed as the strongest to date. However, two assumptions involved are shown to be invalid: quasar images are not distributed uniformly across the sky and the observer and the object within the fundamental cell are not coincident. So, detected images of the object are not located back-to-back. We perform two numerical calculations in a simulated survey. A three-dimensional computational lattice with unit volumes was arranged as the model for a small universe with three-torus topology. The first calculation sets coincident observer and object positions within the unit cell while the second calculation places the observer randomly within the unit cell. The computational lattice was surveyed with two by two degree square beams for images of the object and the number of opposite pairs of images was counted. Our results show that opposite pairs of quasars are detected infrequently and that the Fang and Liu limit is overestimated by a factor of ten in probability. To obtain their90% confidence in pair detection probability, their limit underestimates the number of toroidal diameters by a factor of two. Consequently, their claimed lower limit of 200Mpc for the minimum scale of a three-torus universe is reduced by two to 100 Mpc. The absence of many opposite quasar pairs does not constrain the minimum scale of a toroidal universe and any search for opposite quasar pairs is not a useful method to investigate the existence or constrain the size of a possible toroidal universe.
Hypercentral Constituent Quark Model with a Meson Cloud
Creators: name: Chen, D. Y.
name: Dong, Y. B.
name: Giannini, M. M.
name: Santopinto, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The results for the elastic nucleon form factors and the electromagnetic transition amplitudes to the Delta(1232) resonance, obtained with the Hypercentral Constituent Quark Model with the inclusion of a meson cloud correction are briefly presented. The pion cloud effects are explicitly discussed.
description: 7 pages, 7 figures, talk at 5th International Conference on Perspectives in Hadronic Physics: International Conference on Particle-Nucleus and Nucleus-Nucleus Scattering at Relativistic Energies, Trieste, Italy, 22-26 May 2006
D3.1 Specification of services delivered by each of the 5G-VINNI facilities
Creators: name: Cattoni, Andrea F.
name: Gonzalez, Andres J.
name: Hecker, Artur
name: Guerrero, Carmen
name: Politis, Christos
name: Tranoris, Christos
name: Joao Rodrigues
name: Carapinha, Jorge
name: Ordonez-Lucena, Jose
name: Pauls, Michael
name: Xie, Min
name: Abboud, Osama
name: Grønsund, Pål
name: Muschamp, Paul
name: Wint Yi Poe
name: Huawei
name: Wang, Yue
Publisher: name: Zenodo
Year: 2019

description: 5G-VINNI aims at providing a realistic 5G end-to-end test and experimentation facility that can be used by industry verticals to set up trials of innovative use cases, assessing their readiness and validating their KPIs under different load conditions. To allow different verticals to deploy their own use cases and execute test scenarios with isolation guarantees, 5G-VINNI provides them with isolated, tailored environments (network slices) as a service. This document specifies the network slice services offered per facility site, including information on their exposed capabilities and the APIs made available for vertical’s consumption. To enable desired reusability and reproducibility of network slice services across facility sites in the upcoming project releases, model-based service templates are proposed for the specification of these service offerings. Lessons learned during the implementation phase and feedback from ICT-19 verticals will be considered for the further refinements of these templates.
Current models of the observable consequences of cosmic reionization and their detectability
Creators: name: Iliev, Ilian T.
name: Mellema, Garrelt
name: Pen, Ue-Li
name: Bond, J. Richard
name: Shapiro, Paul R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A number of large current experiments aim to detect the signatures of the Cosmic Reionization at redshifts z>6. Their success depends crucially on understanding the character of the reionization process and its observable consequences and designing the best strategies to use. We use large-scale simulations of cosmic reionization to evaluate the reionization signatures at redshifted 21-cm and small-scale CMB anisotropies in the best current model for the background universe, with fundamental cosmological parameters given by WMAP 3-year results (WMAP3). We find that the optimal frequency range for observing the ``global step'' of the 21-cm emission is 120-150 MHz, while statistical studies should aim at 140-160 MHz, observable by GMRT. Some strongly-nongaussian brightness features should be detectable at frequencies up to ~190 MHz. In terms of sensitivity-signal trade-off relatively low resolutions, corresponding to beams of at least a few arcminutes, are preferable. The CMB anisotropy signal from the kinetic Sunyaev-Zel'dovich effect from reionized patches peaks at tens of muK at arcminute scales and has an rms of ~1 muK, and should be observable by the Atacama Cosmology Telescope and the South Pole Telescope. We discuss the various observational issues and the uncertainties involved, mostly related to the poorly-known reionization parameters and, to a lesser extend, to the uncertainties in the background cosmology.
description: accepted by MNRAS, replaced to match the accepted version, substantial rewriting (including change in the original title and expanded discussions), no changes in the results, 13 pages, 11 figures, most in color
New stable phase of non-uniform charged black strings
Creators: name: Miyamoto, Umpei
name: Kudoh, Hideaki
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Non-uniform black strings coupled to a gauge field are constructed by a perturbative method in a wide range of spacetime dimensions. At the linear order of perturbations, we see that the Gregory-Laflamme instability vanishes at the point where the background solution becomes thermodynamically stable. The emergence/vanishing of the static mode resembles phase transitions, and in fact we find that its critical exponent is nearly 1/2, which means a second-order transition. By employing higher-order perturbations, the physical properties of the non-uniform black strings are investigated in detail. For fixed spacetime dimensions, we find the critical charges at which the stability of non-uniform states changes. For some range of charge, non-uniform black strings are entropically favored over uniform ones. The gauge charge works as a control parameter that controls not only the stability of uniform black strings but also the non-uniform states. In addition, we find that for a fixed background charge the uniform state is not necessarily the state carrying the largest tension. The phase diagram and a comparison with the critical dimension are also discussed.
description: 27 pages, 5 figures, references and minor comments are added
Riesz-type inequalities and overdetermined problems for triangles and quadrilaterals
Creators: name: Bonacini, Marco
name: Cristoferi, Riccardo
name: Topaloglu, Ihsan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 35N25, 49Q10, 49Q20, 49J10, 49J40, 49K21

description: We consider Riesz-type nonlocal interaction energies over polygons. We prove the analog of the Riesz inequality in this discrete setting for triangles and quadrilaterals, and obtain that among all $N$-gons with fixed area, the nonlocal energy is maximized by a regular polygon, for $N=3,4$. Further we derive necessary first-order stationarity conditions for a polygon with respect to a restricted class of variations, which will then be used to characterize regular $N$-gons, for $N=3,4$, as solutions to an overdetermined free boundary problem.
description: This is a post-peer-review, pre-copyedit version of an article that will appear in the Journal of Geometric Analysis. The final authenticated version is available online at: https://doi.org/10.1007/s12220-021-00737-7
Exact diagonalization for spin-1/2 chains and the first order quantum phase transitions of the XXX chain in a uniform transverse field
Creators: name: Pan, Feng
name: Guan, Xin
name: Ma, Nan
name: Han, Wen-Juan
name: Draayer, J. P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A simple Mathematica code based on the differential realization of hard-core boson operators for finding exact solutions of the periodic-N spin-1/2 systems with or beyond nearest neighbor interactions is proposed, which can easily be used to study general spin-1/2 interaction systems. As an example, The code is applied to study XXX spin-1/2 chain with nearest neighbor interaction in a uniform transverse field. It shows that there are [N/2] level-crossing points in the ground state, where N is the periodic number of the system and [x] stands for the integer part of x, when the interaction strength and magnitude of the magnetic field satisfy certain conditions. The quantum phase transitional behavior in the ground state of the system in the thermodynamic limit is also studied.
description: 7pages LaTeX, 1figure
Construction of an ultra-thin cylindrical drift chamber for measurement of the rare decay K+ [formula]
Creators: name: Pacradouni, Vighen
Publisher: name: University of British Columbia
Year: 2008

description: The branching ratio for the decay K+ [formula] has been measured at Brookhaven National Laboratory by the E787 collaboration to be 5.2 x 10-9. The best QCD calculations give a prediction of (.6 -4 6) x 10'. The theoretical equations for this calculation as well as the previous experiment are reviewed. The experiment is in the midst of a major upgrade resulting in a new beam line and a modified detector. The ultra-thin cylindrical drift-chamber with helical cathode strips for measurement of the axial coordinate of the charged particle track is described. A design for charge pre-amplifiers to instrument the cathode strips is discussed. The desired gain was achieved for single amplifiers, however, the problem of ringing and cross-talk when mounted in close proximity remains.
Capacity of a simultaneous quantum secure direct communication scheme between the central party and other M parties
Creators: name: Gao, Ting
name: Yan, Feng-Li
name: Wang, Zhi-Xi
name: Li, You-Cheng
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the capacity of a simultaneous quantum secure direct communication scheme between the central party and other $M$ parties via $M+1$-particle GHZ states and swapping quantum entanglement. It is shown that the encoding scheme should be secret if other $M$ parties wants to transmit $M+1$ bit classical messages to the center party secretly. However when the encoding scheme is announced publicly, we prove that the capacity of the scheme in transmitting the secret messages is 2 bits, no matter how big $M$ is.
description: 3 pages
Scalable Detection and Tracking of Geometric Extended Objects
Creators: name: Meyer, Florian
name: Williams, Jason L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Multiobject tracking provides situational awareness that enables new applications for modern convenience, public safety, and homeland security. This paper presents a factor graph formulation and a particle-based sum-product algorithm (SPA) for scalable detection and tracking of extended objects. The proposed method dynamically introduces states of newly detected objects, efficiently performs probabilistic multiple-measurement to object association, and jointly infers the geometric shapes of objects. Scalable extended object tracking (EOT) is enabled by modeling association uncertainty by measurement-oriented association variables and newly detected objects by a Poisson birth process. Contrary to conventional EOT methods, a fully particle-based approach makes it possible to describe different geometric object shapes. The proposed method can reliably detect, localize, and track a large number of closely-spaced extended objects without gating and clustering of measurements. We demonstrate significant performance advantages of our approach compared to the recently introduced Poisson multi-Bernoulli mixture filter. In particular, we consider a simulated scenarios with up to twenty closely-spaced objects and a real autonomous driving application where measurements are captured by a lidar sensor.
description: 29 pages, 8 figures, 2 tables
On Origin of Mass and Supersymmetry
Creators: name: Shima, Kazunari
name: Tsuda, Motomu
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the nonlinear supersymmetric general relativity gives new insights into the origin of mass and elucidates the mysterious relations between the cosmology and the (low energy) particle physics.
description: 7 pages
On the Variational Characterisation of Generalized Jacobi Equations
Creators: name: Casciaro, Biagio
name: Francaviglia, Mauro
name: Tapia, Victor
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study higher--order variational derivatives of a generic second--order Lagrangian ${\cal L}={\cal L}(x,ϕ,\partialϕ,\partial^2ϕ)$ and in this context we discuss the Jacobi equation ensuing from the second variation of the action. We exhibit the different integrations by parts which may be performed to obtain the Jacobi equation and we show that there is a particular integration by parts which is invariant. We introduce two new Lagrangians, ${\cal L}_1$ and ${\cal L}_2$, associated to the first and second--order deformations of the original Lagrangian ${\cal L}_0$ respectively; they are in fact the first elements of a whole hierarchy of Lagrangians derived from ${\cal L}_0$. In terms of these Lagrangians we are able to establish simple relations between the variational derivatives of different orders of a given Lagrangian. We then show that the Jacobi equations of ${\cal L}_0$ may be obtained as variational equations, so that the Euler--Lagrange and the Jacobi equations are obtained from a single variational principle based on the first--order variation ${\cal L}_1$ of the Lagrangian. We can furthermore introduce an associated energy--momentum tensor ${{\cal H}^μ}_ν$ which turns out to be a conserved quantity if ${\cal L}_0$ is independent of space--time variables.
description: This article was originally published in Differential Geometry and Applications, Proc. Conf., Aug. 28 - Sept. 1, 1995, Brno, Czech Republic (Masaryk University, Brno, 1996), pp. 353-372. Since it is hardly available we post it here for the interested audience
Η Β΄ Ελληνική Δημοκρατία και το Σύνταγμά της: Πολιτικές και θεσμικές αναζητήσεις 1924-1927
Creators: name: Μανίκας, Γεώργιος Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Β΄ Ελληνική Δημοκρατία
Σύνταγμα 1927
Μεσοπόλεμος
Second Greek Republic
Constitution 1927
Interwar Period

description: Σκοπός της διπλωματικής εργασίας ήταν η μελέτη της διαδικασίας που οδήγησε στην επεξεργασία και την τελική κατάρτιση του συντάγματος του 1927 και η εξαγωγή πολιτικών συμπερασμάτων μέσω της ανάλυσης των συνταγματικών συζητήσεων που διεξήχθησαν τόσο στη Βουλή, όσο και στην Εθνοσυνέλευση. Πιο συγκεκριμένα, εξετάστηκε η πορεία των πολιτικών γεγονότων που προκάλεσαν τη μεταβολή του πολιτεύματος της Ελλάδας στις 25 Μαρτίου 1924, όταν ανακηρύχτηκε ως πολίτευμα της χώρας η αβασίλευτη Δημοκρατία και η έκπτωση της δυναστείας των Γκλύξμπουργκ. Στη συνέχεια, παρουσιάστηκαν οι συνταγματικές συζητήσεις που διεξήχθησαν στην Εθνοσυνέλευση και ο ρόλος της δικτατορίας του Πάγκαλου στην εξέλιξη της συνταγματικής διαδικασίας. Επιπλέον, έγινε αναφορά στη σύσταση της Οικουμενικής Κυβέρνησης και στις συνταγματικές συζητήσεις που διεξήχθησαν στη Βουλή. Παράλληλα, σκιαγραφήθηκαν οι πολιτικές αντιλήψεις που επικρατούσαν για τη διαμόρφωση των θεμελιωδών θεσμών και κανόνων λειτουργίας του κράτους. Ακόμη, διερευνήθηκαν οι παράγοντες που επέφεραν μια καθυστέρηση της τάξεως των τριών ετών από την ανακήρυξη της Δημοκρατίας, ως την τελική ψήφιση του συντάγματος τον Ιούνιο του 1927. Τέλος, επιχειρήθηκε η ανάλυση του ρόλου που προσπάθησαν να διαδραματίσουν τα κόμματα και του προσανατολισμού, που επιδίωκαν να δώσουν στο νέο σύνταγμα και στη θεσμική συγκρότηση του κράτους που διαμόρφωναν
description: The purpose of this dissertation was to study the sequence of steps that led to processing and final drafting of the constitution of 1927, and to draw political conclusions by means of analyzing constitutional talks conducted in Parliament as well as in National Assembly. More specifically, the course of political events that brought about the Greek regime change of 25 March 1924 was examined, when the Second Hellenic Republic was proclaimed as Greece’s regime following the fall of the Glücksburg Dynasty. Next, constitutional talks held in National Assembly were presented, and the role of Pangalos’dictatorship in the development of constitutional processes was illustrated. Moreover, reference was made to the formation of the Coalition Government and discussions made in Parliament. Meanwhile, prevalent political views were outlined concerning the fundamental institutions and rules of state operation. Moreover, the factors that resulted in a three year delay from the declaration of Democracy until the final voting of the constitution in June 1927 were investigated. Lastly, there was an analysis of the role political parties played in trying to define the orientation of the new constitution and establish the institutions of the state to be
Plan 1: Das Tal von Musawwarat es Sufra / Plan 2: Luftbild des Tales von Musawwarat es Sufra
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Competition of languages in the presence of a barrier
Creators: name: Schulze, Christian
name: Stauffer, Dietrich
Publisher: name: arXiv
Year: 2007
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Using the Schulze model for Monte Carlo simulations of language competition, we include a barrier between the top half and the bottom half of the lattice. We check under which conditions two different languages evolve as dominating in the two halves.
description: 6 pages including 3 figures
The origin of the hot metal-poor gas in NGC1291: Testing the hypothesis of gas dynamics as the cause of the gas heating
Creators: name: Perez, I.
name: Freeman, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper we test the idea that the low-metallicity hot gas in the centre of NGC 1291 is heated via a dynamical process. In this scenario, the gas from the outer gas-rich ring loses energy through bar-driven shocks and falls to the centre. Heating of the gas to X-ray temperatures comes from the high velocity that it reaches ($\approx$ 700 \kms) as it falls to the bottom of the potential well. This would explain why the stellar metallicity in the bulge region is around solar while the hot gas metallicity is around 0.1 solar. We carried out an observational test to check this hypothesis by measuring the metallicity of HII regions in the outer ring to check whether they matched the hot gas metallicity. For this purpose we obtained medium resolution long slit spectroscopy with FORS1 on the ESO VLT at Paranal and obtained the metallicities using emission line ratio diagnostics. The obtained metallicities are compatible with the bulge stellar metallicities but very different from the hot-gas metallicity. However, when comparing the different time-scales, the gas in the ring had time enough to get enriched through stellar processes, therefore we cannot rule out the dynamical mechanism as the heating process of the gas. However, the blue colours of the outer ring and the dust structures in the bar region could suggest that the origin of the X-ray hot gas is due to the infall of material from further out.
description: 6 pages, 6 figures. A&A accepted
Pyramid scheme in stock market: a kind of financial market simulation
Creators: name: Shi, Yong
name: Li, Bo
name: Du, Guangle
Publisher: name: arXiv
Year: 2021
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: Artificial stock market simulation based on agent is an important means to study financial market. Based on the assumption that the investors are composed of a main fund, small trend and contrarian investors characterized by four parameters, we simulate and research a kind of financial phenomenon with the characteristics of pyramid schemes. Our simulation results and theoretical analysis reveal the relationships between the rate of return of the main fund and the proportion of the trend investors in all small investors, the small investors' parameters of taking profit and stopping loss, the order size of the main fund and the strategies adopted by the main fund. Our work are helpful to explain the financial phenomenon with the characteristics of pyramid schemes in financial markets, design trading rules for regulators and develop trading strategies for investors.
description: 23 pages, 11 figures, in this version we have corrected some expression errors in the previous version
Nicholas B. Millet (1934-2004)
Creators: name: Grzymski, Krzysztof
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Separation of long DNA chains using non-uniform electric field: a numerical study
Creators: name: Nagahiro, Shin-ichiro
name: Kawano, Satoyuki
name: Kotera, Hidetoshi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study migration of DNA molecules through a microchannel with a series of electric traps controlled by an ac electric field. We describe the motion of DNA based on Brownian dynamics simulations of a beads-spring chain. Our simulation demonstrates that the chain captured by an electrode escapes from the binding electric field due to thermal fluctuation. We find that the mobility of chain would depend on the chain length; the mobility sharply increases when the length of a chain exceeds a critical value, which is strongly affected by the amplitude of the applied ac field. Thus we can adjust the length regime, in which this microchannel well separates DNA molecules, without changing the structure of the channel. We also present a theoretical insight into the relation between the critical chain length and the field amplitude.
description: 12 pages, 9 figures
On the Strong Coupling Scaling Dimension of High Spin Operators
Creators: name: Alday, L. F.
name: Arutyunov, G.
name: Benna, M. K.
name: Eden, B.
name: Klebanov, I. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We give an exact analytic solution of the strong coupling limit of the integral equation which was recently proposed to describe the universal scaling function of high spin operators in N = 4 gauge theory. The solution agrees with the prediction from string theory, confirms the earlier numerical analysis and provides a basis for developing a systematic perturbation theory around strong coupling.
description: 26 pages, 2 figures
Realizing Majorana fermion modes in the Kitaev model
Creators: name: Yang, Lu
name: Zhang, Jia-Xing
name: Liang, Shuang
name: Chen, Wei
name: Wang, Qiang-Hua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the possibility to realize Majorana zero mode that's robust and may be easily manipulated for braiding in quantum computing in the ground state of the Kitaev model in this work. To achieve this we first apply a uniform [111] magnetic field to the gapless Kitaev model and turn the Kitaev model to an effective p + ip topological superconductor of spinons. We then study possible vortex binding in such system to a topologically trivial spot in the ground state. We consider two cases in the system: one is a vacancy and the other is a fully polarized spin. We show that in both cases, the system binds a vortex with the defect and a robust Majorana zero mode in the ground state at a weak uniform [111] magnetic field. The distribution and asymptotic behavior of these Majorana zero modes is studied. The Majorana zero modes in both cases decay exponentially in space, and are robust against local perturbations and other Majorana zero modes far away, which makes them promising candidate for braiding in topological quantum computing.
description: 15pages
Ο έκτακτος έλεγχος ως αντικείμενο δικαιώματος μειοψηφίας στην ανώνυμη εταιρία
Creators: name: Σκεντερίδου, Ελευθερία Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Έκτακτος έλεγχος
Δικαίωματα μειοψηφίας
Δικαίωμα ελέγχου
Special audit
Minority rights
Audit right

description: Αντικείμενο της διατριβής ήταν η μελέτη ενός εκ των βασικότερων δικαιωμάτων της μειοψηφίας των μετόχων στην ανώνυμη εταιρία, ήτοι του δικαιώματος για διενέργεια έκτακτου ελέγχου. Εξετάσαμε το δικαίωμα αυτό υπό το πρίσμα του άρθρων 142 και 143 του ν. 4548/2018 περί αναμόρφωσης του δικαίου των ανωνύμων εταιριών, στο σύνολο όμως της μελέτης γίνεται αντιπαραβολή με τις ρυθμίσεις του προϊσχύσαντος κ.ν. 2190/1920. Αναπτύχθηκε εκτενέστατα ο σκοπός του δικαιώματος, καθώς και η διάκρισή του σε δικαίωμα της μικρής και της μεγάλης μειοψηφίας, με τις προϋποθέσεις και τα ειδικότερα χαρακτηριστικά που το διακρίνουν. Έγινε ακόμα αναφορά στο δικονομικό πλαίσιο άσκησης του δικαιώματος αλλά και στον τρόπο διενέργειάς του. Σκοπός της παρούσας μελέτης ήταν να γίνουν αντιληπτά στον αναγνώστη η διαδικασία και οι προϋποθέσεις άσκησης του, τα διάφορα ζητήματα που προέκυψαν από αυτήν, με επίκληση σε πληθώρα θεωρητικών και νομολογιακών απόψεων, καθώς και η σημασία του έκτακτου ελέγχου για τους μετόχους της μειοψηφίας και για την ίδια την ανώνυμη εταιρία εν γένει
description: The subject of the dissertation was the study of one of the most basic rights of minority shareholders in public limited companies, namely the right of special audit. We examined this right in the light of Articles 142 and 143 of Law 4548/2018 “Reformation of the law of public limited companies”, but throughout the study a comparison is made with the regulations of the previous codified Law 2190/1920. The purpose of the right has been extensively developed, as well as its distinction as a right of the small and large minority, with the conditions and the specific characteristics that distinguish it. Reference was also made to the procedural framework of exercising the right but also to the way of conducting the audit. The purpose of this study was the understanding of the process and conditions of the right, the various issues that arose from it, invoking a variety of theoretical and jurisprudential points of view, as well as the importance of special audit for minority shareholders and for the company in general
กลยุทธ์การสื่อสารการตลาดภายในเพื่อเสริมสร้างความไว้วางใจและความผูกพันในตราโรงแรม
Creators: name: นัทธ์หทัย  เถาตระกูล
Publisher: name: บัณฑิตวิทยาลัย มหาวิทยาลัยราชภัฏนครสวรรค์
Year: 2557
Subjects: การสื่อสารการตลาดภายใน, ความมั่นใจในความสามารถของตน, ความไว้วางใจ, ความผูกพัน, พนักงาน

description: 25, 9, วารสารวิชาการและวิจัยสังคมศาสตร์
Trends in the Globular Cluster Luminosity Function of Early-Type Galaxies
Creators: name: Jordan, Andres
name: McLaughlin, Dean E.
name: Cote, Patrick
name: Ferrarese, Laura
name: Peng, Eric W.
name: Blakeslee, John P.
name: Mei, Simona
name: Villegas, Daniela
name: Merritt, David
name: Tonry, John L.
name: West, Michael J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from a study of the globular cluster luminosity function (GCLF) in a sample of 89 early-type galaxies observed as part of the ACS Virgo Cluster Survey. Using a Gaussian parametrization of the GCLF, we find a highly significant correlation between the GCLF dispersion, sigma, and the galaxy luminosity, M_B, in the sense that the GC systems in fainter galaxies have narrower luminosity functions. The GCLF dispersions in the Milky Way and M31 are fully consistent with this trend, implying that the correlation between sigma and galaxy luminosity is more fundamental than older suggestions that GCLF shape is a function of galaxy Hubble type. We show that the sigma - M_B relation results from a bonafide narrowing of the distribution of (logarithmic) cluster masses in fainter galaxies. We further show that this behavior is mirrored by a steepening of the GC mass function for relatively high masses, M >~ 3 x 10^5 M_sun, a mass regime in which the shape of the GCLF is not strongly affected by dynamical evolution over a Hubble time. We argue that this trend arises from variations in initial conditions and requires explanation by theories of cluster formation. Finally, we confirm that in bright galaxies, the GCLF "turns over" at the canonical mass scale of M_TO ~ 2 x 10^5 M_sun. However, we find that M_TO scatters to lower values (~1-2 x 10^5 M_sun) in galaxies fainter than M_B >~ -18.5, an important consideration if the GCLF is to be used as a distance indicator for dwarf ellipticals.
description: 4 pages, 3 figures. Accepted for publication in ApJ Letters. Also available at http://www.cadc.hia.nrc.gc.ca/community/ACSVCS/publications.html
Lech Krzyżaniak (1940–2004)
Creators: name: Chlodnicki, Marek
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Vibrational relaxation dynamics in layered perovskite quantum wells
Creators: name: Quan, Li Na
name: Park, Yoonjae
name: Guo, Peijun
name: Gao, Mengyu
name: Jin, Jianbo
name: Huang, Jianmei
name: Copper, Jason K.
name: Schwartzberg, Adam
name: Schaller, Richard
name: Limmer, David T.
name: Yang, Peidong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Organic-inorganic layered perovskites are two-dimensional quantum wells with layers of lead-halide octahedra stacked between organic ligand barriers. The combination of their dielectric confinement and ionic sublattice results in excitonic excitations with substantial binding energies that are strongly coupled to the surrounding soft, polar lattice. However, the ligand environment in layered perovskites can significantly alter their optical properties due to the complex dynamic disorder of soft perovskite lattice. Here, we observe the dynamic disorder through phonon dephasing lifetimes initiated by ultrafast photoexcitation employing high-resolution resonant impulsive stimulated Raman spectroscopy of a variety of ligand substitutions. We demonstrate that vibrational relaxation in layered perovskite formed from flexible alkyl-amines as organic barriers is fast and relatively independent of the lattice temperature. Relaxation in aromatic amine based layered perovskite is slower, though still fast relative to pure inorganic lead bromide lattices, with a rate that is temperature dependent. Using molecular dynamics simulations, we explain the fast rates of relaxation by quantifying the large anharmonic coupling of the optical modes with the ligand layers and rationalize the temperature independence due to their amorphous packing. This work provides a molecular and time-domain depiction of the relaxation of nascent optical excitations and opens opportunities to understand how they couple to the complex layered perovskite lattice, elucidating design principles for optoelectronic devices.
description: 7 pages, 4 figures, SI
การพัฒนาหลักสูตรสาระการเรียนรู้การงานอาชีพที่สอดคล้องตามสภาพท้องถิ่น สำหรับนักเรียนชั้นประถมศึกษาตอนปลาย จังหวัดชัยนาท
Creators: name: วิเชียร  พรหมมา
Publisher: name: บัณฑิตวิทยาลัย มหาวิทยาลัยราชภัฏนครสวรรค์
Year: 2557
Subjects: หลักสูตรท้องถิ่น, ชั้นประถมศึกษาตอนปลาย, สาระการงานอาชีพ

description: 25, 9, วารสารวิชาการและวิจัยสังคมศาสตร์
Uniform plasma oscillations in ellipsoid of conductive material
Creators: name: Kornyushin, Yuri
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The influence of the shape of a sample on the type of uniform dipole collective electrons oscillations is discussed. In samples of a bulk shape uniform bulk dipole oscillation (Langmuir oscillation) cannot exist. It exists in samples of a thin slab shape only. As uniform bulk dipole oscillations cannot penetrate ellipsoidal samples of conductive material, they exist in the surface layer of a sample only (Mie oscillations). Frequencies of Mie oscillations are alculated for a sample of the shape of an arbitrary ellipsoid.
description: Langmuir oscillation is possible in a thin slab shape sample only
On the first three minimum Mostar indices of tree-like phenylenes
Creators: name: Liu, Hechao
name: You, Lihua
name: Chen, Hanlin
name: Tang, Zikai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C09, 05C92

description: Let $G =(V_{G}, E_{G})$ be a simple connected graph with its vertex set $V_{G}$ and edge set $E_{G}$. The Mostar index $Mo(G)$ was defined as $Mo(G)=\sum\limits_{e=uv\in E(G)}|n_{u}-n_{v}|$, where $n_{u}$ (resp., $n_{v}$) is the number of vertices whose distance to vertex $u$ (resp., $v$) is smaller than the distance to vertex $v$ (resp., $u$). In this study, we determine the first three minimum Mostar indices of tree-like phenylenes and characterize all the tree-like phenylenes attaining these values. At last, we give some numerical examples and discussion.
description: 17 pages, 6 figures
Interacting finite-size magnons
Creators: name: Klose, Thomas
name: McLoughlin, Tristan
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explicitly construct a large class of finite-volume two-magnon string solutions moving on R x S^2. In particular, by making use of the relationship between the O(3) sigma model and sine-Gordon theory we are able to find solutions corresponding to the periodic analogues of magnon scattering and breather-like solutions. After semi-classically quantizing these solutions we invert the implicit expressions for the excitation energies in certain limits and find the corrections for the multi-magnon states. For the breather-like solutions we express the energies directly in terms of the action variable whereas for the scattering solution we express the result as a combination of corrections to the dispersion relation and to the scattering phase.
description: 45pages, 7figures, v2: simplified expressions for periods and angular momenta when elliptic modulus is greater than one, references added, typos corrected
CMB power spectrum estimation with non-circular beam and incomplete sky coverage
Creators: name: Mitra, Sanjit
name: Sengupta, Anand S.
name: Ray, Subharthi
name: Saha, Rajib
name: Souradeep, Tarun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Over the last decade, measurements of the CMB anisotropy has spearheaded the remarkable transition of cosmology into a precision science. However, addressing the systematic effects in the increasingly sensitive, high resolution, `full' sky measurements from different CMB experiments pose a stiff challenge. The analysis techniques must not only be computationally fast to contend with the huge size of the data, but, the higher sensitivity also limits the simplifying assumptions which can then be invoked to achieve the desired speed without compromising the final precision goals. While maximum likelihood is desirable, the enormous computational cost makes the suboptimal method of power spectrum estimation using Pseudo-C_l unavoidable for high resolution data. We provide a (semi)analytic framework to estimate bias in the power spectrum due to the effect of beam non-circularity and non-uniform sky coverage including incomplete/masked sky maps and scan strategy. The approach is perturbative in the distortion of the beam from non-circularity, allowing for rapid computations when the beam is mildly non-circular. We advocate that it is computationally advantageous to employ `soft' azimuthally apodized masks whose spherical harmonic transform die down fast with m. We numerically implement our method for non-rotating beams. We present preliminary estimates of the computational cost to evaluate the bias for the upcoming CMB anisotropy probes l_max~3000, with angular resolution comparable to the Planck surveyor mission. We further show that this implementation and estimate is applicable for rotating beams on equal declination scans and possibly can be extended to simple approximations to other scan strategies.
description: 22 pages, 7 figures. Revised presentation to highlight significance of extended results. Matches version accepted to the MNRAS
The Chaos second level trigger
Creators: name: McFarland, Sheila Joy
Publisher: name: University of British Columbia
Year: 2009

description: In the summer of 1993, a group at TRIUMF commissioned the Canadian High Acceptance Orbit Spectrometer (CHAOS). This is a 360° spectrometer that was built to study Π[sup ±]p elastic scattering and the (Π, 2 Π) reaction in order to investigate the possible effects of chiral symmetry in QCD. An important part of the vast readout electronics is the second level trigger, which performs several fast calculations in hardware to determine the merit of an event before writing it to tape. The trigger performs various cuts on single outgoing tracks: momentum, polarity, distance of closest approach to the origin of CHAOS, and momentum versus scattering angle. In addition, the trigger can look for two such acceptable tracks and then perform cuts based on the sum of the momenta and the comparison of the polarities; this section in particular is crucial for the success of the (Π, 2 Π) program. Finally, the second level trigger can survey the incoming beam and reject events in which an incident pion decayed to a muon before reaching the CHAOS target. This thesis will first provide an introduction to the theoretical motivation behind CHAOS and also outline the various components of the spectrometer in brief. The remainder of the thesis will discuss in detail the purpose and operation of the different sections of the second level trigger.
Σχέση σχιζοφρένειας με αναπτυξιακά ελλείμματα βρεφικής και πρώιμης παιδικής ηλικίας. Μελέτη περιπτώσεων
Creators: name: Χαλεπλή, Ιωάννα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Σχιζοφρένεια
Ανάπτυξη
Πρώιμη παιδική ηλικία
Schizophrenia
Development
Early childhood

description: Σκοπός της μεταπτυχιακής διπλωματικής εργασίας ήταν η μελέτη της σχέσης μεταξύ σχιζοφρένειας και αναπτυξιακών ελλειμμάτων στη βρεφονηπιακή και πρώιμη παιδική ηλικία. Στο θεωρητικό μέρος της εργασίας μελετήθηκε η ανάπτυξη της σχιζοφρένειας και περιγράφησαν διεξοδικά οι πρώιμες διαταραχές στην ανάπτυξη που σχετίστηκαν με τη νόσο και διερευνήθηκε η αλληλεπίδραση αυτών με γενετικούς και περιβαλλοντικούς παράγοντες κινδύνου. Στη συνέχεια εξετάστηκε η προγνωστική αξία των ελλειμμάτων αυτών για την ανάπτυξη της νόσου καθώς και οι πιθανοί προστατευτικοί παράγοντες που λειτουργούν ως ρυθμιστές του κινδύνου για ένα κατάλληλο αναπτυξιακά αποτέλεσμα. Ακολούθως περιγράφηκε ο ρόλος της πρώιμης παρέμβασης στην πρόληψη της νόσου. Στο ειδικό μέρος της εργασίας διενεργήθηκε περιγραφή περιστατικών ασθενών με σχιζοφρένεια με σκοπό τη μελέτη του αναπτυξιακού ιστορικού και τη συσχέτιση πρώιμων αναπτυξιακών ελλειμμάτων με παράγοντες κινδύνου στην βρεφονηπιακή και πρώιμη παιδική ηλικία.
description: The purpose of the dissertation was to study the relationship between schizophrenia and developmental deficits in infancy and early childhood. The first part of the study examined the development of schizophrenia and described in detail the early developmental disorders associated with the disease and investigated their interaction with genetic and environmental risk factors. The prognostic value of these deficits for schizophrenia was studied as well as the possible protective factors that act as risk regulators for a better developmental outcome. The role of early intervention in disease prevention was then described. In the second part of the work, case studies of patients with schizophrenia were conducted in order to study their developmental history and the correlation of early developmental deficits with risk factors in infancy and early childhood.