cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
High-frequency transformer model for switching transient studies
Creators: name: Chimklai, Suthep
Publisher: name: University of British Columbia
Year: 2009

description: The objective of this thesis is to develop a simplified high-frequency model for three-phase, two- and three-winding transformers. The model is an extension of the classical 60 Hz model which includes two important factors prevailing in transformers under transient conditions: stray capacitances which cause transformers to resonate and frequency dependent characteristics of the leakage flux and winding resistances due to skin effects. The model is not aimed to represent internal details of the transformer and only lumped circuit parameters are used in order to simulate terminal behaviours of the transformer. However, it is different from other terminal models in that it is not just an impedance or admittance black box derived from measured transfer functions. Only the meaningful parameters which correspond to the physical components in the real transformer are included in the model. The short-circuit impedances T-form of the classical model is retained which makes it possible to separate the frequency-dependent series branch form the constantvalued capacitances. In addition, it enables the model to be built at the coil level which is independent of winding connections. The model stray capacitances are placed at the corresponding coils terminals. If they link two coils they will be split into two halves with one half connected at the upper ends and the other half at the lower ends. The frequency dependent series branch is divided into sections corresponding to various sections in the transformer coil which can be assumed uniform. An RL equivalent network is used to synthesise the frequency dependent behaviour of each section. The values of R's and L's are calculated from minimum-phase-shift approximations which guarantees numerical stability of the resulting network. With the use of symmetrical components, mathematical complications of fitting mutual impedance functions are avoided and also the number of impedance functions to be fitted by rational functions is reduced. A number of short-circuit tests on the actual power transformers installed in the Thailand 's power system were performed to determine the parameters of the model. The frequency responses calculated from the model are compared with the tests. Also, a timedomain test was conducted and the result was used for comparison with the simulation from the model.
Realization of programmable nanomechanical lattice with both nearest-neighboring and next-nearest-neighboring couplings
Creators: name: Lin, Shaochun
name: Tian, Tian
name: Huang, Pu
name: Yin, Peiran
name: Zhang, Liang
name: Du, Jiangfeng
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The programmable artificial lattice, based on the controllability of coupling strengths and the scalability of multiple sites, is desperately desired in engineering metamaterials and exploring fundamental physics. In this work, we experimentally present a programmable lattice consisting of multiple paralleled nanomechanical resonators, whose internal interactions can be linearly manipulated by external voltages. Flexural modes of nearest-neighboring (NN) and next-nearest-neighboring (NNN) resonators are parametrically coupled through modulated electrostatic interactions. Particularly, in a wide range up to deep strong coupling regime, both the NN and NNN coupling strengths are precisely proportional to manipulation voltage. The realization of long-range coupling provides a promising prospect in constructing complex lattice structure, which is essential in investigating mechanical logic devices, topological physics and coherent phononic dynamics.
description: 5 pages, 4 figures
Deciding Between Wiki and Q&A Platform for Knowledge Management (Decision Support Tool)
Creators: name: Wyrich, Marvin
name: Mũnoz Barón, Marvin
name: Baumann, Ralf
name: Pelzer, Marius
name: Wagner, Stefan
Publisher: name: Zenodo
Year: 2019
Subjects: Wiki
Q&A
Knowledge management
Knowledge sharing
Documentation
Decision support

description: Questionnaire based on scientific findings to help decide between Wiki and Q&A platform for knowledge management. Paper: [currently under review] Special thanks to Caroline Pragua for her design work.
Self-dual Maps III: projective links
Creators: name: Montejano, L.
name: Alfonsin, J. Ramirez
name: Rasskin, I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geometric Topology (math.GT)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 57M15, 57K10

description: In this paper, we present necessary and sufficient combinatorial conditions for a link to be projective, that is, a link in $RP^3$. This characterization is closely related to the notions of antipodally self-dual and antipodally symmetric maps. We also discuss the notion of symmetric cycle, an interesting issue arising in projective links leading us to an easy condition to prevent a projective link to be alternating.
description: arXiv admin note: substantial text overlap with arXiv:2106.05376
Spin-phonon coupling in antiferromagnetic chromium spinels
Creators: name: Rudolf, T.
name: Kant, Ch.
name: Mayr, F.
name: Hemberger, J.
name: Tsurkan, V.
name: Loidl, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The temperature dependence of eigenfrequencies and intensities of the IR active modes has been investigated for the antiferromagnetic chromium spinel compounds CdCr2O4, ZnCr2O4, ZnCr2S4, ZnCr2Se4, and HgCr2S4 by IR spectroscopy for temperatures from 5 K to 300 K. At the transition into the magnetically ordered phases, and driven by spin-phonon coupling, most compounds reveal significant splittings of the phonon modes. This is true for geometrically frustrated CdCr2O4, and ZnCr2O4, for bond frustrated ZnCr2S4 and for ZnCr2Se4, which also is bond frustrated, but dominated by ferromagnetic exchange. The pattern of splitting is different for the different compounds and crucially depends on the nature of frustration and of the resulting spin order. HgCr2S4, which is almost ferromagnetic, exhibits no splitting of the eigenfrequencies, but shows significant shifts due to ferromagnetic spin fluctuations.
description: 15 pages, 6 figures
Boundary Terms in Supergravity and Supersymmetry
Creators: name: van Nieuwenhuizen, P.
name: Rebhan, A.
name: Vassilevich, D. V.
name: Wimmer, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We begin with the simplest possible introduction to supergravity. Then we discuss its spin 3/2 stress tensor; these results are new. Next, we discuss boundary conditions on fields and boundary actions for N=1 supergravity. Finally, we discuss new boundary contributions to the mass and central charge of monopoles in N=4 super Yang-Mills theory. All models are in 3+1 dimensions.
description: 15 pages. Talk given by P. van Nieuwenhuizen at the Einstein-celebration gravitational conference at Puri (India) in December 2005
Time-resolved Hanbury Brown-Twiss interferometry of on-chip biphoton frequency combs using Vernier phase modulation
Creators: name: Myilswamy, Karthik V.
name: Seshadri, Suparna
name: Lu, Hsuan-Hao
name: Alshaykh, Mohammed S.
name: Liu, Junqiu
name: Kippenberg, Tobias J.
name: Weiner, Andrew M.
name: Lukens, Joseph M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Biphoton frequency combs (BFCs) are promising quantum sources for large-scale and high-dimensional quantum information and networking systems. In this context, the spectral purity of individual frequency bins will be critical for realizing quantum networking protocols like teleportation and entanglement swapping. Measurement of the temporal auto-correlation function of the unheralded signal or idler photons comprising the BFC is a key tool for characterizing their spectral purity and in turn verifying the utility of the biphoton state for networking protocols. Yet the experimentally obtainable precision for measuring BFC correlation functions is often severely limited by detector jitter. The fine temporal features in the correlation function$-$not only of practical value in quantum information, but also of fundamental interest in the study of quantum optics$-$are lost as a result and have remained unexplored. We propose a scheme to circumvent this challenge through electro-optic phase modulation, experimentally demonstrating time-resolved Hanbury Brown-Twiss characterization of BFCs generated from an integrated 40.5 GHz Si$_3$N$_4$ microring, up to a 3$\times$3-dimensional two-qutrit Hilbert space. Through slight detuning of the electro-optic drive frequency from the comb's free spectral range, our approach leverages Vernier principles to magnify temporal features which would otherwise be averaged out by detector jitter. We demonstrate our approach under both continuous-wave and pulsed pumping regimes, finding excellent agreement with theory. Importantly, our method reveals not only the collective statistics of the contributing frequency bins but also their temporal shapes$-$features lost in standard fully integrated auto-correlation measurements.
Οι δάνειες λέξεις της αγγλικής γλώσσας σε γαλλικό σώμα κειμένων περιοδικού τύπου
Creators: name: Μουρτζούχου, Ανδρομάχη Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: δάνειες λέξεις
λεξικός δανεισμός
σώμα κειμένων
loan words
lexical borrowing
corpus

description: Ο λεξικός δανεισμός είναι ένα φαινόμενο που απασχολεί ιδιαίτερα τους επιστήμονες μιας και παρουσιάζει ενδιαφέρον ως προς την διαδικασία και ως προς τα ίδια τα προϊόντα του δανεισμού, τις δάνειες λέξεις δηλαδή. Για την μελέτη της διαδικασίας του δανεισμού απαιτούνται χρονοβόρες έρευνες που γυρίζουν αρκετά χρόνια πίσω στην ιστορία κάθε χώρας ώστε να εντοπιστούν οι απαρχές της λέξης και οι λόγοι που την οδήγησαν να «ταξιδέψει». Στην παρούσα μελέτη θα παρουσιαστούν οι δάνειες αγγλικές λέξεις που εντοπίστηκαν σε γαλλικό Ηλεκτρονικό Σώμα Κειμένων. Για να επιτευχθεί αυτό πραγματοποιήθηκε συλλογή κειμένων γαλλικού περιοδικού τύπου και με τη βοήθεια του εργαλείου Monoconc εντοπίστηκαν οι πιο συχνές λέξεις κι ο αριθμός εμφανίσεων των δάνειων λέξεων. Στη συνέχεια εξετάστηκε η κάθε λέξη ξεχωριστά και παρατέθηκαν πληροφορίες για το κάθε δάνειο καθώς και υποθέσεις για τη δημιουργία του. Με την ολοκλήρωση της έρευνας έγινε ξεκάθαρη η επιρροή της αγγλικής γλώσσας στην γαλλική και φάνηκε πως ο δανεισμός είναι ένα φαινόμενο με μεγάλο υπόβαθρο αιτιών που λαμβάνει χώρα συνεχώς και πρέπει να εκλαμβάνεται ως ανάγκη της γλώσσας υποδοχής κι όχι ως επίθεση προς τη δότρια γλώσσα (Αναστασιάδη-Συμεωνίδη, 1994).
description: Lexical borrowing is a phenomenon of particular concern to scientists, since there is interest both on the process and on the borrowed products themselves, i.e. the loan words. To study the borrowing process, lengthy investigations are required that go back several years in the history of each country to identify the origins of the word and the reasons which led it "travel". This study will present the borrowed English words identified in French corpus. In order to achieve this, texts from French magazines were gathered and with the help of Monoconc tool the most frequent words were identified and the number of occurrences of each loan word was counted. Then each word was examined separately and information about each loan and assumptions about its creation were presented. Upon completion of the study, the influence of English over French became clear and led to the conclusion that borrowing is a phenomenon with great background causes that occurs continuously and must be seen as a need of the host language, and not as an attack to the donor language (Anastasiadi- Symeonidi, 1994).
Influence of the martensitic transformation kinetics on the magnetocaloric effect in Ni-Mn-In
Creators: name: Pfeuffer, L.
name: Gottschall, T.
name: Faske, T.
name: Taubel, A.
name: Scheibel, F.
name: Karpenkov, A. Y.
name: Ener, S.
name: Skokov, K. P.
name: Gutfleisch, O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The inverse magnetocaloric effect (MCE) in Ni-Mn-based Heusler compounds occurs during the magnetostructural transition between low-temperature, low-magnetization martensite and high-temperature, high-magnetization austenite. In this study, we analyze the metamagnetic transformation of a $Ni_{49.8}Mn_{35}In_{15.2}$ compound by simultaneous adiabatic temperature change and strain measurements in pulsed magnetic fields up to 10 T. We observe an adiabatic temperature change of -10 K and a strain of -0.22 % when the reverse martensitic transition is fully induced at a starting temperature of 285 K. By a variation of the magnetic field-sweep rates between 316 Ts$^{-1}$, 865 Ts$^{-1}$ and 1850 Ts$^{-1}$, the transitional dynamics of the reverse martensitic transformation have been investigated. Our experiments reveal an apparent delay upon the end of the reverse martensitic transformation at field rates exceeding 865 Ts$^{-1}$ which is related to the annihilation of retained martensite. As a consequence, the field hysteresis increases and higher fields are required to saturate the transition. In contrast, no time-dependent effects on the onset of the reverse martensitic transformation were observed in the studied field-sweep range. Our results demonstrate that kinetic effects in Heusler compounds strongly affect the magnetic cooling cycle, especially when utilising a multicaloric "exploiting-hysteresis cycle" where high magnetic field-sweep rates are employed.
Coupled dynamics of endemic disease transmission and gradual awareness diffusion in multiplex networks
Creators: name: Wu, Qingchu
name: Hadzibeganovic, Tarik
name: Han, Xiao-Pu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Understanding the interplay between human behavioral phenomena and infectious disease dynamics has been one of the central challenges of mathematical epidemiology. However, socio-cognitive processes critical for the initiation of desired behavioral responses during an outbreak have often been neglected or oversimplified in earlier models. Combining the microscopic Markov chain approach with the law of total probability, we herein institute a mathematical model describing the dynamic interplay between stage-based progression of awareness diffusion and endemic disease transmission in multiplex networks. We analytically derived the epidemic thresholds for both discrete-time and continuous-time versions of our model, and we numerically demonstrated the accuracy of our analytic arguments in capturing the time course and the steady-state of the coupled disease-awareness dynamics. We found that our model is exact for arbitrary unclustered multiplex networks, outperforming a widely adopted probability-tree-based method, both in the prediction of the time-evolution of a contagion and in the final epidemic size. Our findings show that informing the unaware individuals about the circulating disease will not be sufficient for the prevention of an outbreak unless the distributed information triggers strong awareness of infection risks with adequate protective measures, and that the immunity of highly-aware individuals can elevate the epidemic threshold, but only if the rate of transition from weak to strong awareness is sufficiently high. Our study thus reveals that awareness diffusion and other behavioral parameters can nontrivially interact when producing their effects on epidemiological dynamics of an infectious disease, suggesting that future public health measures should not ignore this complex behavioral interplay and its influence on contagion transmission in multilayered networked systems.
Homalg: A meta-package for homological algebra
Creators: name: Barakat, Mohamed
name: Robertz, Daniel
Publisher: name: arXiv
Year: 2007
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13D02, 13D05, 13D07, 16E05, 16E10, 16E30

description: The central notion of this work is that of a functor between categories of finitely presented modules over so-called computable rings, i.e. rings R where one can algorithmically solve inhomogeneous linear equations with coefficients in R. The paper describes a way allowing one to realize such functors, e.g. Hom, tensor product, Ext, Tor, as a mathematical object in a computer algebra system. Once this is achieved, one can compose and derive functors and even iterate this process without the need of any specific knowledge of these functors. These ideas are realized in the ring independent package homalg. It is designed to extend any computer algebra software implementing the arithmetics of a computable ring R, as soon as the latter contains algorithms to solve inhomogeneous linear equations with coefficients in R. Beside explaining how this suffices, the paper describes the nature of the extensions provided by homalg.
description: clarified some points, added references and more interesting examples
Η αφαίρεση της επιμέλειας λόγω κακής άσκησής της κατ’ άρθρο 1532 ΑΚ
Creators: name: Χατζημηνά, Ελένη Χαράλαμπου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Γονική μέριμνα
Κακή άσκηση
Συμφέρον του παιδιού
Parental care
Malpractice
Best interest of the child

description: Στην παρούσα εργασία παρουσιάζεται το ζήτημα της αφαίρεσης της επιμέλειας του προσώπου του ανηλίκου λόγω κακής άσκησης από τους γονείς, όπως αυτή εξειδικεύεται στο άρθρο 1532 ΑΚ. Αρχικά γίνεται διάκριση ανάμεσα στο λειτούργημα και την άσκηση του λειτουργικού δικαιώματος της γονικής μέριμνας ήτοι ανάμεσα στους φορείς και τους ασκούντες τη γονική μέριμνα αντίστοιχα, καθώς και στην παύση (οριστική αποστέρηση του δικαιώματος της γονικής μέριμνας χωρίς δυνατότητα ανάκτησης) και της αδράνειας (προσωρινά ανενεργό δικαίωμα άσκησης του παραμένοντος φορέα) του δικαιώματος. Στη συνέχεια και στα πλαίσια των τριών εκφάνσεων της γονικής μέριμνας (επιμέλεια, διοίκηση της περιουσίας και εκπροσώπηση του ανηλίκου) αναλύεται η κακή άσκησή της. Το άρθρο 1532 ΑΚ προβλέπει τρεις περιπτώσεις κακής άσκησης της γονικής μέριμνας (παράβαση των καθηκόντων των γονέων, καταχρηστική άσκηση και πραγματική αδυναμία ανταπόκρισης στο λειτούργημα) που συνέπεια έχουν την αφαίρεση της επιμέλειας από τους γονείς είτε με επείγουσα διάταξη του Εισαγγελέα είτε με απόφαση δικαστηρίου (εκούσια δικαιοδοσία). Κεντρική έννοια στην κρίση του Εισαγγελέα/Δικαστηρίου είναι το συμφέρον του τέκνου, ενώ εξετάζοντα και οι έννοιες του πρόσφορου μέτρου και του κατάλληλου τρίτου που υπεισέρχεται στη θέση των γονέων. Τέλος επιχειρείται μία εννοιολογική οριοθέτηση της γονικής μέριμνας σε σχέση με άλλους προστατευτικούς θεσμούς στον τομέα της ανηλικότητας, όπως είναι η αναδοχή ανηλίκου.
description: This paper presents the issue of removal of custody of the child due to poor exercise by parents, as specified in Article 1532 of Civil Code. Very important is the distinction between the right of parental care itself and its exercise, which leads to the distinction between the “carriers” of the right and the practitioners and between the pause (the definitive deprivation of parental care without possibility of recovery) and the inactivity (temporarily inactive exercise) of the right of parental care. Then, the poor exercise of parental care is analyzed through its three facets (custody, administration of property and representation of the child). According to Article 1532 of Civil Code, there are three cases of poor parental care (violation of the duties of parents, malpractice and de facto inability), that as a result have the deprivation of parental care from parents via an urgent order from the Prosecutor or after a court decision. Essential element that the Prosecutor-Court must take under consideration is the principal of the best interest of the child, while also important is the issue of the selection of the appropriate measure and the appropriate third party, who takes the position of the incapable parents. Finally, there is an attempt to compare the parental care with other protective measures, such as of the foster care of the child.
Neutrinos from the Brightest Gamma-Ray Burst?
Creators: name: Murase, Kohta
name: Mukhopadhyay, Mainak
name: Kheirandish, Ali
name: Kimura, Shigeo S.
name: Fang, Ke
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss implications that can be obtained by searches for neutrinos from the brightest gamma-ray burst, GRB 221009A. We derive constraints on GRB model parameters such as the cosmic-ray loading factor and dissipation radius, taking into account both neutrino spectra and effective areas. The results are strong enough to constrain proton acceleration near the photosphere, and we find that the single burst limits are comparable to those from stacking analysis. Quasithermal neutrinos from subphotospheres and ultrahigh-energy neutrinos from external shocks are not yet constrained. We show that GeV-TeV neutrinos originating from neutron collisions are detectable, and urge dedicated analysis on these neutrinos with DeepCore and IceCube as well as ORCA and KM3NeT.
description: 7 pages, 2 figures, published in ApJL, replaced to provide neutrino spectral templates on Github at https://github.com/pegasuskmurase/ModelTemplates/tree/main/GRBnu, arXiv version with the new GRECO effective area for Figure 2. Conclusions unchanged
Όψεις της θρησκευτικής ετερότητας στην πρωτοβάθμια εκπαίδευση: μουσουλμάνοι μαθητές από οικογένειες μεταναστών
Creators: name: Τσοντάκη, Μαρίνα Εμμανουήλ
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Ετερότητα
Θρησκείες
Πρωτοβάθμια εκπαίδευση
Μουσουλμάνοι
Μετανάστες
Alterity
Religions
Primary Education
Muslims
Immigrants

description: Σκοπός της διπλωματικής εργασίας ήταν η μελέτη όψεων της θρησκευτικής ετερότητας στην Πρωτοβάθμια Εκπαίδευση. Εξετάσαμε την ορολογία που χρησιμοποιείται για την ετερότητα σε διεθνές επίπεδο, και παρουσιάσαμε τις εκφράσεις και τους ορισμούς που έχουν προταθεί. Στη συνέχεια παρουσιάσαμε αναλυτικά τις διάφορες μορφές της, τη στάση της σύγχρονης ευρωπαϊκής κοινωνίας απέναντι στο φαινόμενο συνολικά, καθώς και τις προκλήσεις στην ελληνική κοινωνία στα πλαίσια της πολυπολιτισμικότητας. Στο επίκεντρο της εργασίας βρέθηκε τόσο το ευρωπαϊκό, όσο και το ελληνικό σχολείο, ιδιαίτερα στην Πρωτοβάθμια Εκπαίδευση καθώς και ο ρόλος του παιδαγωγού, στην προσπάθεια ένταξης μουσουλμάνων μαθητών από οικογένειες μεταναστών. Παρουσιάστηκε συστηματικά το πρόβλημα της εκρηκτικής αύξησης των μουσουλμάνων μαθητών μετά το 1990, οι προσπάθειες της ελληνικής πολιτείας να θεσπίσουν το νομοθετικό πλαίσιο για την μεταναστευτική πολιτική, την διαπολιτισμική εκπαίδευση, τα τμήματα υποδοχής αλλοδαπών μαθητών και τα προγράμματα ΕΠΕΑΕΚ. Τέλος, παρουσιάσαμε την περίπτωση της φοίτησης στην Πρωτοβάθμια εκπαίδευση των μουσουλμάνων μαθητών και την νέα πραγματικότητα, που καλείται να αντιμετωπίσει το σύγχρονο ελληνικό σχολείο.
description: The aim of this thesis was to study aspects of religious otherness in Primary Education. We examined the terminology used to alterity at international level, and presented expressions and definitions that have been proposed. Then we presented in detail the various forms, the attitude of modern European society towards the phenomenon as a whole, and the challenges towards Greek society in the context of multiculturalism. The focus of work was both the European and the Greek school, particularly in Primary Education and the role of the teacher in integration of Muslim pupils from immigrant families. We systematically presented the problem of the explosive growth of Muslim students after 1990, the efforts of the Greek state to establish the legislative framework for immigration policy, intercultural education, foreign students reception classes and EPEAEK programs. Finally, we presented the case of attendance of Muslim students in Primary Education and the new reality facing the modern Greek school
Solving Math Word Problems via Cooperative Reasoning induced Language Models
Creators: name: Zhu, Xinyu
name: Wang, Junjie
name: Zhang, Lin
name: Zhang, Yuxiang
name: Gan, Ruyi
name: Zhang, Jiaxing
name: Yang, Yujiu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Large-scale pre-trained language models (PLMs) bring new opportunities to challenging problems, especially those that need high-level intelligence, such as the math word problem (MWPs). However, directly applying existing PLMs to MWPs can fail as the generation process lacks sufficient supervision and thus lacks fast adaptivity as humans. We notice that human reasoning has a dual reasoning framework that consists of an immediate reaction system (system 1) and a delicate reasoning system (system 2), where the entire reasoning is determined by their interaction. This inspires us to develop a cooperative reasoning-induced PLM for solving MWPs, called Cooperative Reasoning (CoRe), resulting in a human-like reasoning architecture with system 1 as the generator and system 2 as the verifier. In our approach, the generator is responsible for generating reasoning paths, and the verifiers are used to supervise the evaluation in order to obtain reliable feedback for the generator. We evaluate our CoRe framework on several mathematical reasoning datasets and achieve decent improvement over state-of-the-art methods, up to 9.6% increase over best baselines. Our codes are available at https://github.com/TianHongZXY/CoRe
description: Accepted to ACL 2023 Main Conference; Camera Ready
Hereditary invertible linear surjections and splitting problems for selections
Creators: name: Repovš, Dušan
name: Semenov, Pavel V.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 54C60; 54C65; 41A65; 54C55; 54C20

description: Let $A+B$ be the pointwise (Minkowski) sum of two convex subsets $A$ and $B$ of a Banach space. Is it true that every continuous mapping $h:X \to A+B$ splits into a sum $h=f+g$ of continuous mappings $f:X \to A$ and $g:X \to B$? We study this question within a wider framework of splitting techniques of continuous selections. Existence of splittings is guaranteed by hereditary invertibility of linear surjections between Banach spaces. Some affirmative and negative results on such invertibility with respect to an appropriate class of convex compacta are presented. As a corollary, a positive answer to the above question is obtained for strictly convex finite-dimensional precompact spaces.
On the nature of overcharging and charge inversion in electrical double layers
Creators: name: Agrawal, Nikhil R.
name: Duan, Chao
name: Wang, Rui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding overcharging and charge inversion is one of the long-standing challenges in soft matter and biophysics. To study these phenomena, we employ the modified Gaussian renormalized fluctuation theory, which allows for the self-consistent accounting of spatially varying ionic strength, as well as the spatial variations in dielectric permittivity and excluded volume effects. The underlying dependence of overcharging on the electrostatic coupling is elucidated by varying surface charge, counterion valency, and dielectric contrast. Consistent with simulations, three characteristic regimes corresponding to weak, moderate, and strong coupling are identified. Important features like the inversion of zeta potential, crowding and ionic layering at the surface are successfully captured. For weak coupling, there is no overcharging. In the moderate coupling regime, overcharging increases with surface charge. Finally, in the strong coupling regime, ionic crowding and saturation in overcharging are observed. Our theory predicts non-monotonic dependence of charge inversion on multivalent salt concentration as well as the addition of monovalent salt, in quantitative agreement with experiments.
Δομή και προσδιοριστικοί παράγοντες της αυτοαντίληψης των Ελληνόπουλων
Creators: name: Μακρή-Μπότσαρη, Εύη
Publisher: name: Παιδαγωγική Επιθεώρηση
Year: 1996

description: The present study investigates the structure of the self-concept in Greek elementary and junior high school children by adopting a multi-dimensional approach to the self-concept, which is here viewed as a compound of two elements: one descriptive, the self-image or self-picture, and one evaluative, the self-esteem or global self-worth. In particular, our study identifies the distinct domains composing the children's profile of self-perceptions, as well as the domains of perceived competence which dominate as determinants of a child's sense of global self-worth. Further, the study explores the effect of specific sociodemographic factors on the various facets of children's self-concept.
description: Παιδαγωγική Επιθεώρηση, Vol. 23 (1996)
Spontaneous Symmetry Breaking in Two-Channel Asymmetric Exclusion Processes with Narrow Entrances
Creators: name: Pronina, Ekaterina
name: Kolomeisky, Anatoly B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Multi-particle non-equilibrium dynamics in two-channel asymmetric exclusion processes with narrow entrances is investigated theoretically. Particles move on two parallel lattices in opposite directions without changing them, while the channels are coupled only at the boundaries. A particle cannot enter the corresponding lane if the exit site of the other lane is occupied. Stationary phase diagrams, particle currents and densities are calculated in a mean-field approximation. It is shown that there are four stationary phases in the system, with two of them exhibiting spontaneous symmetry breaking phenomena. Extensive Monte Carlo computer simulations confirm qualitatively our predictions, although the phase boundaries and stationary properties deviate from the mean-field results. Computer simulations indicate that several dynamic and phase properties of the system have a strong size dependency, and one of the stationary phases predicted by the mean-field theory disappears in the thermodynamic limit.
description: 13 pages
Explainability as statistical inference
Creators: name: Senetaire, Hugo Henri Joseph
name: Garreau, Damien
name: Frellsen, Jes
name: Mattei, Pierre-Alexandre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: A wide variety of model explanation approaches have been proposed in recent years, all guided by very different rationales and heuristics. In this paper, we take a new route and cast interpretability as a statistical inference problem. We propose a general deep probabilistic model designed to produce interpretable predictions. The model parameters can be learned via maximum likelihood, and the method can be adapted to any predictor network architecture and any type of prediction problem. Our method is a case of amortized interpretability models, where a neural network is used as a selector to allow for fast interpretation at inference time. Several popular interpretability methods are shown to be particular cases of regularised maximum likelihood for our general model. We propose new datasets with ground truth selection which allow for the evaluation of the features importance map. Using these datasets, we show experimentally that using multiple imputation provides more reasonable interpretations.
description: 10 pages, 22 figures, published at ICLR 2023
Sp(N) higher-derivative F-terms via singular superpotentials
Creators: name: Argyres, Philip C.
name: Edalati, Mohammad
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We generalize the higher-derivative F-terms introduced by Beasley and Witten (hep-th/0409149) for SU(2) superQCD to Sp(N) gauge theories with fundamental matter. We generate these terms by integrating out massive modes at tree level from an effective superpotential on the chiral ring of the microscopic theory. Though this superpotential is singular, its singularities are mild enough to permit the unambiguous identification of its minima, and gives sensible answers upon integrating out massive modes near any given minimum.
description: 15 pages, 6 figures
FAIR AI Models in High Energy Physics
Creators: name: Duarte, Javier
name: Li, Haoyang
name: Roy, Avik
name: Zhu, Ruike
name: Huerta, E. A.
name: Diaz, Daniel
name: Harris, Philip
name: Kansal, Raghav
name: Katz, Daniel S.
name: Kavoori, Ishaan H.
name: Kindratenko, Volodymyr V.
name: Mokhtar, Farouk
name: Neubauer, Mark S.
name: Park, Sang Eon
name: Quinnan, Melissa
name: Rusack, Roger
name: Zhao, Zhizhen
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Machine Learning (cs.LG)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The findable, accessible, interoperable, and reusable (FAIR) data principles provide a framework for examining, evaluating, and improving how data is shared to facilitate scientific discovery. Generalizing these principles to research software and other digital products is an active area of research. Machine learning (ML) models -- algorithms that have been trained on data without being explicitly programmed -- and more generally, artificial intelligence (AI) models, are an important target for this because of the ever-increasing pace with which AI is transforming scientific domains, such as experimental high energy physics (HEP). In this paper, we propose a practical definition of FAIR principles for AI models in HEP and describe a template for the application of these principles. We demonstrate the template's use with an example AI model applied to HEP, in which a graph neural network is used to identify Higgs bosons decaying to two bottom quarks. We report on the robustness of this FAIR AI model, its portability across hardware architectures and software frameworks, and its interpretability.
description: 34 pages, 9 figures, 10 tables
A theoretical toolbox for the simulation and design of HBTs constructed in the Al Ga₁₋ As and Si₁₋ Ge material systems
Creators: name: Searles, Shawn
Publisher: name: University of British Columbia
Year: 2009

description: A theoretical toolbox for the simulation of Heterojunction Bipolar Transistors (HBTs), including the effects of tunneling, recombination, and the optimum non-linear base profile (for the minimisation of the base transit time), is developed. The models developed are applicable to a general material system, and are analytic. Extensions specifically required by the complex S₁₋xGex material system are also developed. The optimum (to minimise base transit time) base doping is found to be non-exponential, and the optimum base bandgap grading is not linear. A general transport model for HBTs, including recombination processes, is developed that accounts for the complex nature of charge transport throughout the entire device. Unique methods for optimising HBT metrics, which cannot be employed for Bipolar Junction Transistors (BJTs), are also presented. A description of charge transport within the emitter-base Space-Charge Region (SCR), which accounts for tunneling and is not beholden to the usual drift-diffusion analysis, is developed. The implications of having different electron effective masses in the two sides of the hetero-junction, leading to what is termed a mass boundary, is fully explored. It is found that the tunneling of electrons within the emitter-base SCR leads to a non-Maxwellian minority-particle ensemble distribution entering the neutral base. Finally, transport within SiGe HBTs is considered, with all of the relevant material models presented and multi-band transport models developed. This treatment leads to a variety of interesting conclusions regarding the operation of present-day SiGe HBTs and possible future designs.
Τέχνη και Βιογραφία: η περίπτωση του Γιάννη Τσαρούχη και του Νίκου Χατζηκυριάκου – Γκίκα
Creators: name: Ξυδιά, Βασιλική Αθανασίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Γιάννης Τσαρούχης
Νίκος Χατζηκυριάκος - Γκίκας
Τέχνη και Βιογραφία
Yannis Tsarouchis
Nikos Hadjikyriakos – Ghikas
Art and Biography

description: Αντικείμενο της παρούσας διατριβής είναι η ερμηνεία του καλλιτεχνικού έργου μέσα από την εξέταση της ζωής και της προσωπικότητας του δημιουργού. Πιο συγκεκριμένα, μελετάται το έργο του Γιάννη Τσαρούχη και του Νίκου Χατζηκυριάκου – Γκίκα, ιδωμένα μέσα από το πρίσμα της βιογραφίας τους. Αναφερόμενη στον όρο «βιογραφία», δεν εννοώ αποκλειστικά τα βιωματικά στοιχεία που μπορεί να ενυπάρχουν σε ένα έργο τέχνης. Πρωτίστως, επιχειρείται μια εξέταση του έργου από την πλευρά του καλλιτέχνη: οι λόγοι, δηλαδή, που τον ωθούν σε μια συγκεκριμένη θεματική, τι θέλει να εκφράσει με το έργο του και γιατί καταλήγει στη μία ή την άλλη τεχνοτροπία. Τα έργα που παρουσιάζονται, δεν προσεγγίζονται φορμαλιστικά, ούτε αξιολογούνται εκ νέου, αλλά συζητούνται μόνο ως προς τη σχέση τους με τον δημιουργό, την ιστορία του και τους λόγους για τους οποίους απέκτησαν την τελική τους μορφή. Πρόθεσή μου είναι, μέσα από την παράλληλη μελέτη των δύο καλλιτεχνών, να φανεί ο τρόπος με τον οποίο η προσωπικότητα, οι απόψεις και οι επιδιώξεις του κάθε δημιουργού, προσανατόλισαν το έργο του.
description: The subject of the current dissertation concerns the interpretation of artistic work via examining the life and personality of the creator. Specifically, we consider the work of Yannis Tsarouchis and Nikos Hadjikyriakos - Ghikas, as displayed through the prism of their biography. By referring to the term ‘biography’ we do not exclusively imply the elements from experience that may be included in a work of art. Primarily, we attempt to examine the work from the artist’s perspective: That is, the reasons that force them unto a specific thematic, what they wish to express with their work and why they conclude to one or another artistic genre. The works displayed are not formally treated, neither reevaluated, but are discussed only as to their relation to the creators, their history and the reasons for which they have come to obtain their final forms. Our intention is, through the parallel study of the two artists, to portray the ways in which their personalities, their views and aspirations, have orientated their artistic work.
A measure of the multiverse
Creators: name: Vilenkin, Alexander
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: FOS: Physical sciences

description: I review recent progress in defining a probability measure in the inflationary multiverse. General requirements for a satisfactory measure are formulated and recent proposals for the measure are clarified and discussed.
description: 13 pages, 1 figure. Discussion of eternal observers is slightly expanded
Semi-classical approaches to heavy-ion reactions: fusion, rainbow, and glory
Creators: name: Canto, L. F.
name: Hagino, K.
name: Ueda, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A semi-classical approximation has been a powerful tool in understanding the dynamics of low-energy heavy-ion reactions. Here we discuss two topics in this regard, for which Mahir Hussein was a world leading pioneer. The first topic is heavy-ion fusion reactions of neutron-rich nuclei, in which the breakup process of the projectile nucleus plays a crucial role. The second is rainbow and glory scattering, for which characteristic oscillatory patterns in differential cross sections can be well understood in terms of intereferences among several semi-classical trajectories.
description: 10 pages, 7 figures. A contribution to the topical issue "Cluster structure and dynamics of nuclei - A tribute to Mahir Hussein", to be published in Euro. Phys. J. A
Exergy analysis of the Colombian energy matrix: An insight from its economic sectors and energy resources
Creators: name: Velasquez, Hector Ivan
name: Orozco Loaiza, Carlos Andres
name: Maya, Juan Carlos
name: Florez-Orrego, Daniel
name: Lopera, Sergio
Publisher: name: International Journal of Sustainable Energy Planning and Management
Year: 2019

description: In this paper, the exergy analysis of the Colombian energy matrix for the years 1975,1993, 2012 and 2016 is developed, based on data measured by the Colombian Planning Office of Mining and Energy (UPME) along with the reported values of the general exergy performance of industrial processes and other specific to the productive activities of the Colombian energy matrix. Differently from the existent evaluation methodology of the Latin American Energy Organization (OLADE), in this work, a methodology based on the concept of exergy (i.e. the combined analysis of the First and Second law of the Thermodynamics) is used to assess the performance of each economic sector without the need for differentiating between primary and secondary resources. The exergy performance of the utilization of the various energy resources through the different economic sectors is represented via Grassmann diagrams from two points of view, namely representing the exergy losses by energy resource and determining the exergy losses by economic sector. The first approach focuses on the study of how the resources are used in the Colombian energy matrix, whereas the latter one focuses on how efficient the Colombian economic sectors perform. As a novel outcome, it was possible to evidence an increasing trend, although still incipient, of the evolution of the overall exergy efficiency of the Colombian energy sectors. These results prove to be useful in identifying the actual bottlenecks and forecast the future shortcomings that the planning offices and economic decision-makers will face in the scenario of a newly industrializing country with a growing and energy demanding population.
description: International Journal of Sustainable Energy Planning and Management, Vol 22 (2019)
Strategic Features for General Games
Creators: name: Browne, Cameron
name: Soemers, Dennis J. N. J.
name: Piette, Eric
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: This short paper describes an ongoing research project that requires the automated self-play learning and evaluation of a large number of board games in digital form. We describe the approach we are taking to determine relevant features, for biasing MCTS playouts for arbitrary games played on arbitrary geometries. Benefits of our approach include efficient implementation, the potential to transfer learnt knowledge to new contexts, and the potential to explain strategic knowledge embedded in features in human-comprehensible terms.
description: Paper exactly as it appeared at KEG Workshop held at AAAI 2019
Nanometer scale electronic reconstruction at the interface between LaVO3 and LaVO4
Creators: name: Kourkoutis, L. Fitting
name: Hotta, Y.
name: Susaki, T.
name: Hwang, H. Y.
name: Muller, D. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electrons at interfaces, driven to minimize their free energy, are distributed differently than in bulk. This can be dramatic at interfaces involving heterovalent compounds. Here we profile an abrupt interface between V 3d2 LaVO3 and V 3d0 LaVO4 using electron energy loss spectroscopy. Although no bulk phase of LaVOx with a V 3d1 configuration exists, we find a nanometer-wide region of V 3d1 at the LaVO3/LaVO4 interface, rather than a mixture of V 3d0 and V 3d2. The two-dimensional sheet of 3d1 electrons is a prototypical electronic reconstruction at an interface between competing ground states.
description: 14 pages, 5 figures
Έρως και Πόλις, ο Ρόλος του Έρωτα στην Πλατωνική Πολιτική Σκέψη των Μέσων Διαλόγων
Creators: name: Θεοδωρούδη, Ευαγγελία Ιωακείμ
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Έρωτας
Πλάτων
Πολιτική φιλοσοφία
Love
Plato
Political philosophy

description: Σκοπός της εργασίας ήταν να μελετηθεί ο ρόλος του έρωτα στην πολιτική σκέψη του Πλάτωνα, στους διαλόγους της μέσης (ώριμης) περιόδου. Αρχικά παρουσιάστηκαν περιληπτικά οι τέσσερις διάλογοι (Φαίδων, Συμπόσιον, Πολιτεία, Φαίδρος) και τέθηκαν εντός του χρονολογικού τους πλαισίου. Στη συνέχεια εξετάστηκε η σχέση έρωτα – πολιτικής στις κοινές αντιλήψεις των Αθηναίων της κλασικής εποχής. Ως έρωτας προσωπικός, με τη μορφή της παιδεραστίας, θεωρήθηκε μια απελευθερωτική διαδικασία πολιτικής εμβάπτισης που σηματοδοτείται από το πέρασμα από την ιδιωτική σφαίρα της εξάρτησης στη δημόσια σφαίρα της ελευθερίας. Ως έρωτας γενικός, που απευθύνεται στους θεσμούς, στη πατρίδα κλπ., εμφανίστηκε σαν πολιτικό κίνητρο που συνδέει μέσω του συναισθήματος το άτομο με την κοινότητα. Έπειτα, μελετήθηκε η πλατωνική προσέγγιση στο ίδιο ζήτημα και παρατηρήθηκε πως ο φιλόσοφος ακολούθησε τις στάσεις των συγχρόνων του, εντάσσοντάς τες ωστόσο στο δικό του φιλοσοφικό οικοδόμημα, επαναπροσδιορίζοντας την έννοια της ελευθερίας, που εκκινεί από το ερωτικό συναίσθημα, ως έλλογη, εσωτερική κατάσταση του υποκειμένου. Τέλος, παραβλήθηκαν τα συμπεράσματα της έρευνας με νεότερες μελέτες και συζητήθηκαν πιθανές ενστάσεις που ενδέχεται να προκύψουν.
description: The aim of the present thesis was to study the role of love in Plato’s political thinking, in the dialogues of his middle (mature) period. At first, the four dialogues (Phaedo, Symposion, Republic, Phaedrus) were summarily presented and set within their chronological frame. Next, the relationship between love and politics in classical time’s Athenian common perceptions was examined. As personal love, in the form of pederasty, love was considered a liberating procedure of political dipping, marked by the passage from the personal/depended sphere to the public/free sphere. As general love, addressing institutions, the homeland etc., it appeared like a political motivation that connects the person with the community through emotion. Then, the platonic approach on the same subject was studied and it was observed that the philosopher followed his contemporaries’ stances, incorporating them,though,in his own philosophical edifice, redefining the meaning of liberty, motivated by the emotion of love, as a rational, internal human condition. Finally, the conclusions of the study were compared with more recent studies and eventual objections were discussed