cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Multi-wavelength afterglow observations of the high redshift GRB 050730
Creators: name: Pandey, S. B.
name: Castro-Tirado, A. J.
name: McBreen, S.
name: Perez-Ramirez, M. D.
name: Bremer, M.
name: Guerrero, M. A.
name: Sota, A.
name: Cobb, B. E.
name: Jelinek, M.
name: Postigo, A. de Ugarte
name: Gorosabel, J.
name: Guziy, S.
name: Guidorzi, C.
name: Bailyn, C. D.
name: Munoz-Darias, T.
name: Gomboc, A.
name: Monfardini, A.
name: Mundell, C. G.
name: Tanvir, N.
name: Levan, A. J.
name: Bhatt, B. C.
name: Sahu, D. K.
name: Sharma, S.
name: Bogdanov, O.
name: Combi, J. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: GRB 050730 is a long duration high-redshift burst (z=3.967) discovered by Swift. The afterglow shows variability and is well monitored over a wide wavelength range. We present comprehensive temporal and spectral analysis of the afterglow of GRB 050730 including observations from the millimeter to X-rays. We use multi-wavelength afterglow data to understand the temporal and spectral decay properties with superimposed variability of this high redshift burst. Five telescopes were used to study the decaying afterglow of GRB 050730 in the B, V, r', R, i', I, J and K photometric pass bands. A spectral energy distribution was constructed at 2.9 hours post-burst in the K, J, I, R, V and B bands. X-ray data from the satellites Swift and XMM-Newton were used to study the afterglow evolution at higher energies. The early afterglow shows variability at early times and shows a steepening at ~0.1 days (8.6 ks) in the B, V, r', R, i', I, J and K passbands. The early afterglow light curve decayed with alpha_1 = -0.60+/-0.07 and alpha_2 = -1.71+/-0.06 based on R and I band data. A millimeter detection of the afterglow around 3 days after the burst shows an excess in comparison to predictions. The early X-ray light curve observed by Swift is complex and contains flares. At late times the X-ray light curve can be fit by a powerlaw alpha_x = -2.5+/-0.15 which is steeper than the optical light curve. A spectral energy distribution (SED) was constructed at \~2.9 hours after the burst. An electron energy index, p, of ~ 2.3 was calculated using the SED and the photon index from the X-ray afterglow spectra and indicates that the synchrotron cooling frequency nu_c is above observed frequencies.
description: 12 pages, 10 figures, Accepted for publication in A&A. Typo corrected in revision
Two-chip power-scalable THz-generating semiconductor disk laser
Creators: name: Guoyu, Heyang
name: Kriso, Christian
name: Zhang, Fan
name: Wichmann, Matthias
name: Stolz, Wolfgang
name: Fedorova, Ksenia A.
name: Rahimi-Iman, Arash
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate a compact two-chip terahertz-emitting vertical-external-cavity surface-emitting laser (TECSEL) source, which provides 1-THz output based on intracavity frequency conversion of dual-wavelength emission in a periodically-poled lithium niobate crystal. The type-I frequency conversion scheme at room temperature highly benefits from the power-scaling possibilities in a multichip cavity with intracavity powers in excess of 500 W.
description: Authors' accepted manuscript. https://www.osapublishing.org/ol/abstract.cfm?uri=ol-44-16-4000 Copyright 2019 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited
Additional file 17 of Genome-wide identification, classification, and expression analysis of the JmjC domain-containing histone demethylase gene family in birch
Creators: name: Chen, Bowei
name: Ali, Shahid
name: Zhang, Xu
name: Zhang, Yonglan
name: Wang, Min
name: Zhang, Qingzhu
name: Xie, Linan
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 17: Figure S1. The detailed sequences information of 20 motifs in BpJMJ proteins annotated from MEME website.
Ratio of photon anisotropic flow in relativistic heavy ion collisions
Creators: name: Chatterjee, Rupa
name: Dasgupta, Pingal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The $p_T$ dependent elliptic and triangular flow parameters of direct photons are known to be dominated by thermal radiations. The non-thermal contributions dilute the photon anisotropic flow by adding extra weight factor in the $v_n$ calculation. The discrepancy between experimental photon anisotropic flow data and results from theoretical model calculations is not well understood even after significant developments in the model calculations as well as in the experimental analysis. We show that the ratio of photon $v_n$ can be a potential observable in this regard by minimizing the uncertainties arising due to the non-thermal contributions. We calculate the $v_2/v_3$ of photons as a function of $p_T$ from heavy ion collisions at RHIC and compare the results with available experimental data. The ratio does not change significantly $p_T$ in the region $p_T>2$ GeV. However, it rises towards smaller $p_T$ ($< 2$ GeV) values. The ratio is found to be larger for peripheral collisions than for central collisions. In addition, it is found to be sensitive to the initial formation time and the final freeze-out temperature at different $p_T$ regions unlike the individual anisotropic flow parameters. We show that the photon $v_1/v_2$ and $v_1/v_3$ along with the $v_2/v_3$ results may help us constraining the initial conditions.
description: 6 pages, 8 figures
Multifractal detrended cross-correlation analysis for two nonstationary signals
Creators: name: Zhou, Wei-Xing
Publisher: name: arXiv
Year: 2008
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Physics and Society (physics.soc-ph)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: It is ubiquitous in natural and social sciences that two variables, recorded temporally or spatially in a complex system, are cross-correlated and possess multifractal features. We propose a new method called multifractal detrended cross-correlation analysis (MF-DXA) to investigate the multifractal behaviors in the power-law cross-correlations between two records in one or higher dimensions. The method is validated with cross-correlated 1D and 2D binomial measures and multifractal random walks. Application to two financial time series is also illustrated.
description: 4 RevTex pages including 6 eps figures
Oscillations of the thermal conductivity observed in the spin-liquid state of $α$-RuCl$_3$
Creators: name: Czajka, Peter
name: Gao, Tong
name: Hirschberger, Max
name: Lampen-Kelley, Paula
name: Banerjee, Arnab
name: Yan, Jiaqiang
name: Mandrus, David G.
name: Nagler, Stephen E.
name: Ong, N. P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In the class of materials called spin liquids, a magnetically ordered state cannot be attained even at milliKelvin temperatures because of conflicting constraints on each spin (for e.g. from geometric or exchange frustration). The resulting quantum spin-liquid (QSL) state is currently of intense interest because it exhibits novel excitations as well as wave-function entanglement. The layered insulator $α$-RuCl$_3$ orders as a zigzag antiferromagnet below $\sim$7 K in zero magnetic field. The zigzag order is destroyed when a magnetic field $\bf H$ is applied parallel to the zigzag axis a. Within the field interval (7.3, 11) Tesla, there is growing evidence that a QSL state exists. Here we report the observation of oscillations in its thermal conductivity below 4 K. The oscillation amplitude is very large within the interval (7.3, 11) T and strongly suppressed on either side. Paradoxically, the oscillations are periodic in 1/\emph{H}, analogous to quantum oscillations in metals, even though $α$-RuCl$_3$ is an excellent insulator with a gap of 1.9 eV. By tilting $\bf H$ out of the plane, we find that the oscillation period is determined by the in-plane component $H_a$. As the temperature is raised above 0.5 K, the oscillation amplitude decreases exponentially. The decrease anticorrelates with the emergence above $\sim$2 K of an anomalous planar thermal Hall conductivity measured with $\bf H\parallel a$. To exclude extrinsic artifacts, we carried out several tests. The implications of the oscillations are discussed.
description: 8 pages, 3 figures
Nonsingular black hole chemistry
Creators: name: Kumar, Arun
name: Ghosh, Sushant G.
name: Maharaj, Sunil D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the nonsingular black hole in Anti de-Sitter background taking the negative cosmological constant as the pressure of the system. We investigate the horizon structure, and find the critical values $m_0$ and $\tilde{k}_0$, such that $m>m_0$ (or $\tilde{k}\tilde{k}_0$), no black hole solution exists. In turn, we calculate the thermodynamical properties and by observing the behaviour of Gibb's free energy and specific heat, we find that this black hole solution exhibits first order (small to large black hole) and second order phase transition. Further, we study the $P-V$ criticality of system and then calculate the critical exponents showing that they are the same as those of the Van der Waals fluid.
description: 12 pages, 8 figures
D1.3 Data Management Plan (v1.3 Feb 2021). Deliverable report of project H2020 MONOCLE (grant 776480)
Creators: name: Simis, Stefan
name: Poser, Kathrin
name: Peters, Steef
name: Clements, Oliver
name: Snee, Darren
Publisher: name: Zenodo
Year: 2021

description: The objective of this data management plan (DMP) is to detail the plan for management of data generated and collected within the MONOCLE project. The DMP describes the data management life cycle for all datasets collected, processed and/or generated by the project. It covers • what data will be collected, processed or generated • how the data will be handled during and after the project • who is considered as an owner of a data set and who it is shared with • how the sharing of the data within and outside the project is organised • what formats, meta data and standards the data will adhere to • how data will be curated and preserved MONOCLE data consist of a diverse range of types and formats and standardization of the data and data flows is one of the main project objectives.
title: The new approach to hybrid Kalman filtering, based on the changed order of filters for state estimation of dynamical systems
Creators: name: Michalski, Jacek
name: Kozierski, Piotr
name: Ziętkiewicz, Joanna
Publisher: name: Publishing House of Poznan University of Technology
Year: 2019

description: Poznan University of Technology Academic Journals: Electrical Engineering, 97, 181-190
The Mega-MUSCLES Spectral Energy Distribution Of TRAPPIST-1
Creators: name: Wilson, David J.
name: Froning, Cynthia S.
name: Duvvuri, Girish M.
name: France, Kevin
name: Youngblood, Allison
name: Schneider, P. Christian
name: Berta-Thompson, Zachory
name: Brown, Alexander
name: Buccino, Andrea P.
name: Hawley, Suzanne
name: Irwin, Jonathan
name: Kaltenegger, Lisa
name: Kowalski, Adam
name: Linsky, Jeffrey
name: Loyd, R. O. Parke
name: Miguel, Yamila
name: Pineda, J. Sebastian
name: Redfield, Seth
name: Roberge, Aki
name: Rugheimer, Sarah
name: Tian, Feng
name: Vieytes, Mariela
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a 5A-100um Spectral Energy Distribution (SED) of the ultracool dwarf star TRAPPIST-1, obtained as part of the Mega-MUSCLES Treasury Survey. The SED combines ultraviolet and blue-optical spectroscopy obtained with the Hubble Space Telescope, X-ray spectroscopy obtained with XMM-Newton, and models of the stellar photosphere, chromosphere, transition region and corona. A new Differential Emission Measure model of the unobserved extreme-ultraviolet spectrum is provided, improving on the Lyman alpha to EUV relations often used to estimate the 100-911A flux from low-mass stars. We describe the observations and models used, as well as the recipe for combining them into an SED. We also provide a semi-empirical, noise-free model of the stellar ultraviolet spectrum based on our observations for use in atmospheric modelling of the TRAPPIST-1 planets.
description: Accepted to APJ, SEDs available at https://github.com/davidjwilson/Trappist-1_MM
An Inhomogeneous Model Universe Behaving Homogeneously
Creators: name: Khosravi, Sh.
name: Kourkchi, E.
name: Mansouri, R.
name: Akrami, Y.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new model universe based on the junction of FRW to flat Lemaitre-Tolman-Bondi (LTB) solutions of Einstein equations along our past light cone, bringing structures within the FRW models. The model is assumed globally to be homogeneous, i.e. the cosmological principle is valid. Local inhomogeneities within the past light cone are modeled as a flat LTB, whereas those outside the light cone are assumed to be smoothed out and represented by a FRW model. The model is singularity free, always FRW far from the observer along the past light cone, gives way to a different luminosity distance relation as for the CDM/FRW models, a negative deceleration parameter near the observer, and correct linear and non-linear density contrast. As a whole, the model behaves like a FRW model on the past light cone with a special behavior of the scale factor, Hubble and deceleration parameter, mimicking dark energy.
description: 23 pages, 19 figures, published version in GRG
Affective geographies : Virginia Woolf and Arab women writers narrate memory
Creators: name: Logan, Katie Marie
Publisher: name: The University of Texas at Austin
Year: 2016
Subjects: Affect theory
Memory studies
Middle East
Virginia Woolf
Arabic
Theories of space and place
Forgetting

description: Affective Geographies engages a cross-cultural group of writers who long for lost places and pasts but express that longing critically. The writers articulate affective memories to contest linear and politically legible narratives about place. I focus on nostalgia and forgetting to theorize a memory practice in which authors navigate ambiguous, ongoing loss. I construct an associative canon of women writers like the contemporary Arab authors Miral al-Tahawy, Leila Ahmed, Hoda Barakat, Ghada al-Samman, and Jean Said Makdisi and the British Modernist Virginia Woolf. Scholars who read these authors globally often shy away from explorations of affect, particularly nostalgia or sentimentality. I advocate, however, for a comparative reading that emphasizes the authors’ aesthetic and affective resonances despite the differences in their contexts, audiences, and publication histories. Each writer uses personal experience, ambivalent feelings, and complex memory structures to claim and re-narrate their own histories, pushing back against dominant political narratives and becoming sources for critical reflection. Female writers in particular use affective memory to contest gender-based distinctions in the political and domestic spheres. In Chapter One, I describe how autobiography and memoir projects from Leila Ahmed, Virginia Woolf, and Leonard Woolf introduce ambivalent feelings about the past to leave their narration of complex histories open. I develop a theorization of ambivalent nostalgia in order to compare three disparate authors with diverse relationships to colonial and domestic histories. In Chapter Two, I argue that Woolf’s Mrs. Dalloway and Miral al-Tahawy’s Brooklyn Heights reconfigure the negative connotations of female memory, most notably sentimentality, as a practice of empathy and community formation rather than an exercise in backwards-gazing. I demonstrate that in both novels, the act of walking through city space provokes a dynamic and embodied form of memory. In Chapter Three, I explore how Woolf and Hoda Barakat resist medical discourses that seek to pathologize experiences of desire, longing, and female narration. Finally, Chapter Four details how forgetting can become an essential tool for narration, allowing the writer to shape and renegotiate her past.
The Performance Impact of Newton Iterations per Solver Call in Partitioned Fluid-Structure Interaction
Creators: name: Spenke, Thomas
name: Hosters, Norbert
name: Behr, Marek
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The cost of a partitioned fluid-structure interaction scheme is typically assessed by the number of coupling iterations required per time step, while ignoring the Newton loops within the nonlinear sub-solvers. In this work, we discuss why these single-field iterations deserve more attention when evaluating the coupling's efficiency and how to find the optimal number of Newton steps per coupling iteration.
title: Estymacja SNR przy użyciu filtrów cyfrowych dla łączy światłowodowych
Creators: name: Żegliński, Grzegorz
name: Pęksiński, Jakub
name: Mikołajczak, Grzegorz
Publisher: name: Publishing House of Poznan University of Technology
Year: 2019

description: Poznan University of Technology Academic Journals: Electrical Engineering, 97, 191-202
title: Wpływ pracy nowoczesnych urządzeń domowego użytku na parametry określające jakość energii elektrycznej oraz warunki eksploatacji instalacji elektrycznych i ochrony przeciwporażeniowej
Creators: name: Lange, Andrzej
Publisher: name: Publishing House of Poznan University of Technology
Year: 2019

description: Poznan University of Technology Academic Journals: Electrical Engineering, 97, 215-230
Μοτίβα σε Μοντέλα Δικτύων
Creators: name: Αργύρης, Γιώργος Απόστολου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Μοντέλα εξομείωσης δικτύων
Δείκτης Τυχαιότητας σε δίκτυα
Μοτίβα
Network Models
Randomness indicator on networks
Motifs

description: Η παρούσα διπλωματική εμπίπτει στον τομέα Επιστήμης δικτύων/Θεωρίας γράφων. Σκοπός είναι να διακρίνουμε δυναμικές ενός συστήματος που αναλύεται υπό την μορφή πολυμεταβλητών χρονοσειρών. Αρχικά, εισάγουμε κάποιες θεμελιώδεις στατιστικές μετρικές που χαρακτηρίζουν ένα δίκτυο και κάποια μαθηματικά μοντέλα που προσπαθούν να εξομοιώσουν πραγματικά δίκτυα. Επιπροσθέτως, εισάγουμε μία νέα στατιστική μετρική, που βασίζεται στα μοτίβα (συνδεδεμένες τετράδες κόμβων), και ελέγχει κατα πόσο ένα παρατηρούμενο δίκτυο κατασκευάζεται από ένα από τα παρακάτω μοντέλα: Erdos-Renyi model, Barabasi-Albert scale free model, WS small world model, Exponential degree random graph model. Η στατιστική μετρική λειτουργεί ικανοποιητικά έπειτα από δοκιμές Monte Carlo που πραγματοποιήθηκαν και μπορεί να βελτιωθεί περεταίρω. Η εφαρμογή της εμπίπτει στην ανάλυση δυναμικών συστημάτων όπως χρηματιστήριο και ηλεκτροεγκεφαλογραφήματα και επίσης εφαρμόζεται και σε στατικά δίκτυα. Το Matlab χρησιμοποιήσαμε σαν εργαλείο.
description: This master thesis lies in the sector of network science/graph theory/circuit theory. The purpose is to classify the dynamics of a system which is analyzed by the means of multivariate time series. Initially, we introduce some of the fundamental statistical metrics that characterize a network as well as some of the mathematical models that emulate general real world networks. Last but not least, we introduce a new statistical network metric, which relies on motifs (tetrads of nodes), and checks/quantifies the possibility of a given network to have been constructed by one of the models: Erdos-Renyi random graph model, Barabasi-Albert scale free model, WS small world model, Exponential degree random graph model. This statistical metric seems to work well, according to Monte Carlo experiments that have been done, and could be improved. The application of the aforementioned statistical metric lies in the sector of dynamical system analysis such as Stock Market, EEGs and is also applied to static networks. Matlab was the tool that we used.
Οι αγορές της κλασικής και ελληνιστικής εποχής στο βόρειο ελλαδικό χώρο.
Creators: name: Δανιηλίδου, Ολγα Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2017
Subjects: Αγορά
Βόρειος ελλαδικός χώρος
Αρχιτεκτονική κλασικής και ελληνιστικής εποχής
Agora
Northern Greek area
Architecture of Classical and Hellenistic times

description: Σκοπός της παρούσας μεταπτυχιακής εργασίας ήταν η μελέτη των αρχιτεκτονικών καταλοίπων αρχαίων πόλεων του βόρειου ελλαδικού χώρου των κλασικών και ελληνιστικών χρόνων που ταυτίστηκαν με σχετική βεβαιότητα ως τμήματα αγορών ή αποτελούν ισχυρές ενδείξεις για την αναζήτηση των αγορών των πόλεων αυτών. Παρουσιάστηκε μια γενική θεώρηση των χαρακτηριστικών γνωρισμάτων των αγορών συνοδευόμενη από αντίστοιχα παραδείγματα. Ιδιαίτερη μνεία δόθηκε στην ανάλυση των λειτουργιών των αγορών. Κατόπιν, παρουσιάστηκαν αναλυτικά τα υπάρχοντα αρχαιολογικά δεδομένα από αρχαίες πόλεις στις χωρικές ενότητες της Ηπείρου, της Μακεδονίας και της Θράκης του σύγχρονου ελληνικού κράτους. Τέλος, αναφέρθηκαν συμπεράσματα για τη σχέση πολιτεύματος των παραπάνω περιοχών και αρχιτεκτονικού και τοπογραφικού σχεδιασμού των πόλεών τους κατά την κλασική και ελληνιστική εποχή.
description: The aim of the present thesis was the study of architectural remains of ancient cities of the Classical and Hellenistic periods in the northern Greek area which were identified with relative certainty of agora segments or are strong indications for the search of the agora in these cities. We presented an overview of the characteristics of the agora together with corresponding examples. Special mention was given to the analysis of the agora functions. Then we presented in detail the existing archaeological evidence of ancient cities on the spatial units of Epirus, Macedonia and Thrace of the Modern Greek state. Finally, we mentioned conclusions about the connection between the constitution of these areas and architectural and topographical design of their cities during the Classical and Hellenistic period.
title: Porównanie przebiegów w systemie elektroenergetycznym w niesymetrycznych stanach pracy przy uwzględnieniu różnych modeli generatorów synchronicznych
Creators: name: Pruski, Piotr
name: Paszek, Stefan
Publisher: name: Publishing House of Poznan University of Technology
Year: 2019

description: Poznan University of Technology Academic Journals: Electrical Engineering, 98, 7-18
Η ετερότητα στη λογοτεχνία : Η εικόνα του Αλβανού μετανάστη σε ελληνικά λογοτεχνικά αφηγήματα για νέους
Creators: name: Παπαδημητρίου, Ιωάννα Ευθυμίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Ταυτότητα - Ετερότητα
Λογοτεχνία
Θεωρία της πολιτισμικής εικονολογίας
Identity - Diversity
Literature
Imagology theory

description: Τις τελευταίες δεκαετίες οι Έλληνες συγγραφείς έργων παιδικής και εφηβικής ηλικίας έχουν επηρεαστεί από την αθρόα άφιξη μεταναστών στη χώρα μας και παράγουν μυθιστορήματα που εστιάζουν στο θέμα της ταυτότητας και της ετερότητας, με στόχο την εξοικείωση των παιδιών και των εφήβων με τον «άλλο» και την αποδόμηση των στερεοτύπων που σχετίζονται με τον «άλλο», τον μετανάστη. Στόχος της παρούσας ερευνητικής εργασίας είναι η ανίχνευση και η καταγραφή της εικόνας του Αλβανού μετανάστη, καθώς και η διερεύνηση των τρόπων και των τεχνικών με τις οποίες κατασκευάζεται και αποτυπώνεται η ταυτότητά του σε ελληνικά λογοτεχνικά αφηγήματα για νέους που εκδόθηκαν κατά την τριετία 2003-2005. Η ανάλυση των μυθιστορημάτων έγινε με βάση τα εργαλεία που προέρχονται από τον χώρο της θεωρίας της πολιτισμικής εικονολογίας, της θεωρίας της αφήγησης και της θεωρίας των κοινωνικών σταθερών. Στα μυθιστορήματα τα οποία αναλύθηκαν, οι λεκτικές, θεματικές και αφηγηματικές επιλογές των συγγραφέων πολλές φορές αντιβαίνουν στον διαπολιτισμικό στόχο των βιβλίων. Διαπιστώθηκε ότι κυριαρχεί η ιδεολογία της αφομοίωσης του μετανάστη, ενώ αναπαράγονται τα ήδη κατασκευασμένα στερεοτυπικά χαρακτηριστικά της εικόνας του Αλβανού μετανάστη, που έχουν επικρατήσει στο συλλογικό ασυνείδητο της ελληνικής κοινωνίας
description: In recent decades Greek authors of children and adolescent literature have been affected by the massive arrival of immigrants in Greece and they produce novels that focus on the issue of identity and diversity, in order to familiarize children and teenagers with the "other" and to deconstruct the stereotypes associated with the "other", the immigrant. The target of this dissertation is to detect and record the image of the Albanian immigrant and to explore the techniques with which his identity is constructed and reflected in Greek narrative literature for young people, which was published during the years 2003-2005. The analysis of the texts was based on tools from the areas of the “imagologie” theory, the narration theory and the theory of “catholic and local pictures”. In the analyzed texts, the authors’ lexical, thematic and narrative choices often go against the intercultural target of the books. It was found that the ideology of immigrants’ assimilation prevails and that the already constructed stereotypical features of the image of the Albanian immigrant, which have predominated in the collective unconscious of the Greek society, are recreated.
title: Analiza możliwości wykrywania miejsca zwarcia zwojowego w transformatorze energetycznym na podstawie jego odpowiedzi częstotliwościowej (SFRA)
Creators: name: Lewandowski, Kamil
name: Morańda, Hubert
Publisher: name: Publishing House of Poznan University of Technology
Year: 2019

description: Poznan University of Technology Academic Journals: Electrical Engineering, 98, 53-63
Revisiting the production of $J/ψ+η_c$ via the $e^+e^-$ annihilation within the QCD light-cone sum rules
Creators: name: Zeng, Long
name: Fu, Hai-Bing
name: Hu, Dan-Dan
name: Chen, Ling-Li
name: Cheng, Wei
name: Wu, Xing-Gang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We make a detailed study on the typical production channel of double charmoniums, $e^+e^-\to J/ψ+η_c$, at the center-of-mass collision energy $\sqrt{s}=10.58$ GeV. The key component of the process is the form factor $F_{\rm VP}(q^2)$, which has been calculated within the QCD light-cone sum rules (LCSR). To improve the accuracy of the derived LCSR, we keep the $J/ψ$ light-cone distribution amplitude up to twist-4 accuracy. Total cross sections for $e^+e^-\to J/ψ+η_c$ at three typical factorization scales are $σ|_{μ_s} = 22.53^{+3.46}_{-3.49}~{\rm fb}$, $σ|_{μ_k} = 21.98^{+3.35}_{-3.38}~{\rm fb}$ and $σ|_{μ_0} = 21.74^{+3.29}_{-3.33}~{\rm fb}$, respectively. The factorization scale dependence is small, and those predictions are consistent with the BABAR and Belle measurements within errors.
description: 8 pages, 3 figures, version to be published in Physical Review D
Μνεία και χρήση της Αγίας Γραφής στη Λαυσαϊκή Ιστορία
Creators: name: Μωυσίδου, Ελεάννα Γεωργίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Λαυσαϊκή Ιστορία
Αγία Γραφή
Αιγυπτιακός μοναχισμός
Lausiac History
Bible
Egyptian monasticism

description: Στην παρούσα εργασία μελετάται ο ρόλος της Αγίας Γραφής στη διαμόρφωση των κανόνων του μοναστικού βίου. Για το σκοπό αυτό μελετήθηκε σε βάθος το κείμενο της Λαυσαϊκής Ιστορίας (420) του Παλλαδίου Ελενο(υ)πόλεως, στο οποίο ο συγγραφέας εξιστορεί το βίο των πατέρων της ερήμου, κάποιους από τους οποίους γνώρισε ο ίδιος κατά τη διάρκεια του ταξιδιού του στην αιγυπτιακή έρημο. Η Λαυσαϊκή Ιστορία, που αφιερώνεται στον πραιπόσιτο Λαύσο, το θαλαμηπόλο του Θεοδοσίου Β', ήταν η κύρια πηγή της εργασίας. Στο πρώτο κεφάλαιο της παρούσας μελέτης εκτίθεται η ζωή, η δράση και η εργογραφία του συγγραφέα. Στο δεύτερο κεφάλαιο καταγράφονται όλα τα αγιογραφικά χωρία που παρατίθενται στο έργο. Το τελευταίο κεφάλαιο προβάλλει το ρόλο των ανθρωπολογικών προτύπων, και κυρίως του Χριστού ως υψίστου προτύπου και διδασκάλου στις σελίδες της Λαυσαϊκής. Μελετήσαμε τη χρήση των αγιογραφικών χωρίων και συμπεράναμε ότι ο συγγραφέας αξιοποιεί τα βιβλικά χωρία ως έρεισμα της διδασκαλίας του αλλά και ως πηγή άντλησης των κανόνων και των αρχών της μοναστικής βιωτής: η Βίβλος διδάσκει την υπακοή, την ταπείνωση, την παρθενία, την ακτημοσύνη και την αγάπη. Οι ήρωες του Παλλαδίου γίνονται οδοδείκτες του ουρανού, έχοντας οι ίδιοι ως οδηγό και κανόνα την Αγία Γραφή.
description: This paper studied the role of the Bible in shaping the rules of monastic life. For this purpose, we studied in depth the text of Lausiac History (420) of Palladius of Hellenopolis, in which the author recounts the life of the desert fathers, some of whom he himself met during his trip to the egyptian desert. Lausiac History, which was dedicated to the praepositus Lausus, the chamberlain of Theodosius II, was the main source of labor. The first chapter exposes life, action and the work of the author. The second chapter lists all direct or indirect references of the Bible. The last chapter reveals the role of anthropological models, and mainly Christ as the highest standard and teacher in the pages of Lausiac History. We studied the use of hagiographical passages and found that the author leverages the biblical passages not only as the basis of his teachings but also as a source of the rules and principles of monastic life: The Bible teaches obedience, humility, virginity, indigence and love. The heroes of Palladium are signposts of heaven, having as a guide the Bible itself.
Fixed-Points for Quantitative Equational Logics
Creators: name: Mardare, Radu
name: Panangaden, Prakash
name: Plotkin, Gordon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: We develop a fixed-point extension of quantitative equational logic and give semantics in one-bounded complete quantitative algebras. Unlike previous related work about fixed-points in metric spaces, we are working with the notion of approximate equality rather than exact equality. The result is a novel theory of fixed points which can not only provide solutions to the traditional fixed-point equations but we can also define the rate of convergence to the fixed point. We show that such a theory is the quantitative analogue of a Conway theory and also of an iteration theory; and it reflects the metric coinduction principle. We study the Bellman equation for a Markov decision process as an illustrative example.
title: Analiza odpowiedzi częstotliwościowej (SFRA) transformatora energetycznego o mocy 25 MVA po wystąpieniu zwarcia zwojowego
Creators: name: Lewandowski, Kamil
name: Morańda, Hubert
Publisher: name: Publishing House of Poznan University of Technology
Year: 2019

description: Poznan University of Technology Academic Journals: Electrical Engineering, 98, 89-100
Relic gravitational waves and their detection
Creators: name: Zhao, Wen
name: Zhang, Yang
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: As the strong evidence for inflation, the relic gravitational waves (RGW) have been extensively studied. Although, it has not been detected, yet some constraints have been achieved by the observations. Future experiments for the RGW detection are mainly two kinds: the CMB experiments and the laser interferometers. In this paper, we study these current constraints and the detective abilities of future experiments. We calculate the strength of RGW $Ω_g(k)$ in two methods: the analytic method and the numerical method by solving the inflationary flow equations. By the first method we obtain a bound $Ω_g<3.89\times10^{-16}$ at $ν=0.1$Hz, where we have used the current constraints on the scalar spectral index, the tensor-scalar ratio, furthermore, we have taken into account of the redshift-suppression effect, the accelerating expansion effect, the neutrino damping effect on the RGW. But the analytic expression of $Ω_g(k)$ depends on the specific inflationary models and not well applies for the waves with very high frequencies. The numerical method is more precise for the waves with high frequencies and applies to any single-field inflationary model. It gives a bound $Ω_g<8.62\times10^{-14}$, which is independent of the inflationary parameters, and applies to any single-field slow-roll inflationary model. After considering the current constraints on the inflationary parameters, this bound becomes $Ω_g<2\times10^{-17}$ (see text).
description: 17 pages including 3 figures. Only style is revised
Text of "Dancing and Drumming"
Creators: name: Koroma, Yallon
name: Rolle, Nicholas
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: lma

description: 2 MOV files. This is a text explaining the significance of a dance just performed. It was recorded using a Zoom recorder and lapel microphone. Mami Yallon starts off, then another community leader steps in the explain further.
The relationship of virtue of happiness in Socrates’ moral theory
Creators: name: Harland, Leslie A.
Publisher: name: University of British Columbia
Year: 2008

description: This thesis examines the relationship of virtue to happiness in Socrates 'moral theory. The focus of my enquiry is a debate between Gregory Vlastos and Terence Irwin in which Vlastos claims that Socrates holds component view of the relationship of virtue to happiness, and Irwin claims that Socrates holds an instrumentalist view. I begin the thesis with an enquiry into what counts as Socrates’ moral theory. I conclude that, in spite of the seemingly negative function of the elenctic method, Socrates has a positive moral theory which can be found in the early Platonic dialogues. I then present Socrates' major theses. With respect to happiness, Socrates is a eudaemonist — that is, he holds that happiness is the ultimate end of all rational acts. With respect to virtue, Socrates holds the principle of the Sovereignty of Virtue — that is, when considering two alternate courses of action, one virtuous and the other either vicious or less virtuous, it is considerations of virtue and nothing else that should decide one's actions. With respect to the relationship of virtue to happiness, Socrates holds the Sufficiency Thesis — that is, virtue is both necessary and sufficient for happiness. The remainder of the thesis examines and critiques three diver-gent interpretations of the Sufficiency Thesis. First, Socrates could hold that virtue is necessary and sufficient for virtue because virtue is instrumental toward happiness. This is Irwin's position. Second, Socrates could hold that virtue is necessary and sufficient for happiness because virtue is the major component of happiness, and any other components of happiness are components of happiness only if they occur in conjunction with virtue. This is Vlastos' position. Third, Socrates could hold that virtue is necessary and sufficient for happiness because virtue and happiness are one and the same form of living described from the vantage points of different criteria. This is my position. I close the thesis with an evaluation of the Socratic relationship of virtue to happiness from a modern perspective. Although there awesome differences between contemporary conceptions of the relationship of virtue to happiness and that of Socrates, the third interpretation of the Socrates' Sufficiency thesis (outlined in the preceding paragraph) is consistent with modern thought.
Συγκριτική μελέτη αναγνωστικών της Τρίτης Δημοτικού του 20ου αιώνα
Creators: name: Λυπιρίδου, Ανθούλα-Ισμήνη Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Αναγνωστικό Δημοτικού
Ελλάδα-20ος αιώνας
books of Greek language in primary school
Greece-20th century

description: Σκοπός της διπλωματικής εργασίας ήταν η συγκριτική μελέτη των αναγνωστικών του 20ου αιώνα στην τρίτη δημοτικού του . Στο εισαγωγικό μέρος, σκιαγραφήθηκε το ιστορικό πλαίσιο της εκπαίδευσης στην Ελλάδα τον 20ο αιώνα και η διεθνής και ελληνική έρευνα στα σχολικά βιβλία. Το κυρίως μέρος ήταν η έρευνα και η ανάλυση των αποτελεσμάτων από την έρευνα των αναγνωστικών της τρίτης δημοτικού στους τομείς της ιστορίας, της θρησκείας και της εργασίας.Στο τελευταίο μέρος της εργασίας υπάρχουν τα συμπεράσματα και τις προτάσεις για το μέλλον.
description: The aim of the present thesis was the comparative study in primary school’s books of Greek language in the third grade during the 20th century. The introductory part summarizes the educational historic framework of the 20th century and the international and the greek research in the books of school. The main part of the dissertation was the research and the analysis of the results in the fields of history, religion and professions. In the final part of the dissertation, I stated the conclusions that have been drawn and suggestions for the future.
Identification of acoustic gravity waves from satellite measurements
Creators: name: Klymenko, Yu. O.
name: Fedorenko, A. K.
name: Kryuchkov, E. I.
name: Cheremnykh, O. K.
name: Voitsekhovska, A. D.
name: Selivanov, Yu. O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: A method for recognizing the types of linear acoustic gravity waves (AGWs) in the atmosphere from satellite measurements is proposed. It is shown that the polarization relations between fluctuations of wave parameters (velocity, density, temperature, and pressure) for freely propagating waves, as well as evanescent wave modes, differ significantly, which makes it possible to identify different types of atmospheric waves in experimental data. A diagnostic diagram is proposed, with the help of which, from the phase shifts of the observed parameters, it is possible to determine the type of wave, as well as the direction of its movement relative to the vertical. Using phase shifts between fluctuations of the velocity and thermodynamic parameters of the atmosphere, not only the type of the wave, but also its spectral characteristics can be determined. The verification of the proposed method for identification of polar wave disturbances in measurements from the low-orbit satellite Dynamics Explorer 2 was carried out. The verification showed that the polarization relations of AGW in the thermosphere mainly correspond to the gravity branch of acoustic-gravity waves freely propagating in the direction from bottom to top. This conclusion is consistent with other results of AGW observations in the atmosphere and ionosphere by ground-based and satellite methods. No evanescent waves were observed on the considered orbits.
Dependence of band structures on stacking and field in layered graphene
Creators: name: Aoki, Masato
name: Amawashi, Hiroshi
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Novel systems of layered graphene are attracting interest for theories and applications. The stability, band structures of few-layer graphite films, and their dependence on electric field applied along the c-axis are examined within the density functional theory. We predict that those of Bernal type and also rhombohedral type tri- and tetra-layer graphite films exhibit stability. The rhombohedral-type systems including AB-bilayer, show variable band gap induced by perpendicular electric field, whereas the other systems such as the Bernal-type films stay semi-metallic.
description: 5 pages, 5 figures, accepted for publication in Solid State Communications
Sustainability and economic policy analysis
Creators: name: Von Amsberg, Joachim
Publisher: name: University of British Columbia
Year: 2008

description: The purpose of this dissertation is to provide a better economic basis for the discussion on how much natural capital the current generation should be allowed to deplete. Chapter I uses overlapping-generations models to show the effects of different assumptions about which generation owns the stock of a natural resource on the distribution of intergenerational welfare. An increase in the share of the resource stock that is owned by the first generation, reduces welfare of later generations. If the first generation owns the full resource stock, intermediate generations have to be sufficiently wealthy to buy the resource from the first generation and sell it to later generations. This channelling effect can lead to a situation of resource abundance followed by rapidly increasing resource prices and scarcity. Chapter II show that the incompleteness of intergenerational insurance markets constitutes a market failure that leads to inefficient intergenerational investment decisions. Risks that increase from generation to generation would be under-insured by the current generation. Examples of excessive reduction of biodiversity, excessive natural resource depletion, and inefficiently low protection against global warming are provided. Chapter III analyzes the decision theoretical foundation of environmental choices under uncertainty. Since ambiguity and ignorance are important aspects of many environmental problems, subjective expected utility theory (SEU) has significant limitations as a normative decision making model. The use of SEU leads to a systematic bias against the conservation of natural capital. An alternative decision model is suggested based on the Dempster-Shafer belief-function theory and Choquet expected utility. The synthesis in chapter IV suggests that the costs of natural capital depletion are systematically underestimated in conventional analysis. To remedy the biases against future generations and the complete valuation of natural capital, a sustainability constraint on the economic activities of the current generation is proposed. This constraint requires compensation for natural capital depletion through functional substitutes. From this sustainability constraint, an operational sustainable supply rule is derived for determining shadow prices of natural capital depletion.
A pole to pole pressure temperature map of Saturn's thermosphere from Cassini Grand Finale data
Creators: name: Brown, Zarah
name: Koskinen, Tommi
name: Mueller-Wodarg, Ingo
name: West, Robert
name: Jouchoux, Alain
name: Esposito, Larry
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Temperatures of the outer planet thermospheres exceed those predicted by solar heating alone by several hundred degrees. Enough energy is deposited at auroral regions to heat the entire thermosphere, but models predict that equatorward distribution is inhibited by strong Coriolis forces and ion drag. A better understanding of auroral energy deposition and circulation are critical to solving this so-called energy crisis. Stellar occultations observed by the Ultraviolet Imaging Spectrograph instrument during the Cassini Grand Finale were designed to map the thermosphere from pole to pole. We analyze these observations, together with earlier observations from 2016 and 2017, to create a two-dimensional map of densities and temperatures in Saturns thermosphere as a function of latitude and depth. The observed temperatures at auroral latitudes are cooler and peak at higher altitudes and lower latitudes than predicted by models, leading to a shallower meridional pressure gradient. Under modified geostrophy, we infer slower westward zonal winds that extend to lower latitudes than predicted, supporting equatorward flow from approximately 70 to 30 degrees latitude in both hemispheres. We also show evidence of atmospheric waves in the data that can contribute to equatorward redistribution of energy through zonal drag.
description: 25 pages, 6 figures, including Supplementary Information
First measurement of the rho spectral function in nuclear collisions
Creators: name: Damjanovic, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The NA60 experiment at the CERN SPS has studied low-mass muon pairs in 158 AGeV In-In collisions. A strong excess of pairs is observed above the yield expected from neutral meson decays. The unprecedented sample size close to 400K events and the good mass resolution of about 2% made it possible to isolate the excess by subtraction of the decay sources. The shape of the resulting mass spectrum shows some non-trivial centrality dependence, but is largely consistent with a dominant contribution from pi+pi- ->rho ->mu+mu- annihilation. The associated rho spectral function exhibits considerable broadening, but essentially no shift in mass. The pT-differential mass spectra show the excess to be much stronger at low pT than at high pT. The results are compared to theoretical model predictions; they tend to rule out models linking hadron masses directly to the chiral condensate.
description: 6 pages, 9 figures, To appear in the proceedings of Hot Quarks 2006, Villasimius, Italy, 15-20 May 2006
Μελέτη των ταξιανθιών του φυτού Achillea grandifolia Friv. της οικογένειας Asteraceae (Compositae)
Creators: name: Γούναρης, Χρήστος Απόστολου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Αχίλλεια
Σεσκιτερπενικές λακτόνες
Φλαβονοειδή
Achillea grandifolia Friv.
Sesquiterpene lactones
Flavonoids

description: Διάφορα είδη του γένους Achillea L. (Asteraceae) χρησιμοποιούνται παραδοσιακά για την επούλωση πληγών, κατά της διάρροιας και του μετεωρισμού, για κοιλιακό άλγος, καθώς και για την διουρητική και εμμηναγωγό δράση τους. Στην παρούσα εργασία μελετήθηκαν οι ταξιανθίες του φυτού Achillea grandifolia Friv. της οικογένειας Asteraceae, ως προς το περιεχόμενο των μη πτητικών δευτερογενών μεταβολιτών τους. Η εκχύλιση του φυτού αρχικά έγινε με το μίγμα των διαλυτών πετρελαϊκός αιθέρας:αιθέρας:μεθανόλη σε αναλογία 1:1:1, και στη συνέχεια με μεθανόλη. Με τη χρήση διαφόρων χρωματογραφικών μεθόδων (VLC, CC, HPLC) απομονώθηκαν έως τώρα επτά ουσίες: δύο σεσκιτερπενικές λακτόνες που ανήκουν στην κατηγορία των γουαϊανολιδίων: ρουπικολίνη Α και ρουπικολίνη Β, καθώς και πέντε φλαβονοειδή: 5, 7, 4΄-τριϋδροξυφλαβόνη (απιγενίνη), 3΄, 4΄, 5, 7-τετραϋδροξυφλαβόνη (λουτεολίνη), 3, 5, 3΄, 4΄-τετραϋδροξυ-6, 7-διμεθοξυφλαβόνη (ευπατολιτίνη), απιγενινο-7-Ο-γλυκοσίδης και λουτεολινο-7-Ο-γλυκοσίδης. Η διευκρίνιση της δομής των ουσιών έγινε με τη χρήση φασματοσκοπίας πυρηνικού μαγνητικού συντονισμού (NMR) (1Η, 13C, COSY, HSQC, HMBC), φασματοσκοπίας μάζας (MS/MS) και φασματοσκοπίας υπεριώδους-ορατού (UV-Vis).
description: Many species of genus Achillea L. (Asteraceae) have been traditionally used for wound healing, against diarrhea and flatulence, for abdominal pain, and for their diuretic and emmenagogue action. In this study, the inflorescence of the plant Achillea grandifolia Friv. of Asteraceae family was examined for its content in nonvolatile secondary metabolites. The extraction of the plant was initially held with the mixture of solvents petrolium ether:ether:methanol in 1:1:1 proportion, and then with methanol. With the use of different chromatographic methods (VLC, CC, HPLC) seven secondary metabolites have so far been isolated: two sesquiterpene lactones which belong to guaianolides: rupicolin A and rupicolin B, and five flavonoids: 5, 7, 4΄-trihydroxyflavone (apigenin), 3΄, 4΄, 5, 7-tetrahydroxyflavone (luteolin), 3, 5, 3΄, 4΄-tetrahydroxy-6, 7-dimethoxyflavone (eupatolitin), apigenin-7-O-glucoside and luteolin-7-O-glucoside. Τhe clarification of their structure was held with the use of nuclear magnetic resonance spectroscopy (NMR) (1Η, 13C, COSY, HSQC, HMBC), mass spectroscopy (MS/MS) and ultraviolet-visible spectroscopy (UV-Vis).