cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Braid cobordisms, triangulated categories, and flag varieties
Creators: name: Khovanov, Mikhail
name: Thomas, Richard
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Algebra (math.QA)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 18E30

description: We argue that various braid group actions on triangulated categories should be extended to projective actions of the category of braid cobordisms and illustrate how this works in examples. We also construct actions of both the affine braid group and the braid cobordism category on the derived category of coherent sheaves on the cotangent bundle to the full flag variety.
description: Comment added noting faithfulness of braid group action on D(T*Flag). Referee's comments incorporated to make paper more readable. 90 pages, 21 figures
Μεταναστευτική κρίση και δημοσιογραφική αναπαράσταση: Η περίπτωση των μουσουλμάνων μεταναστών στην Ελλάδα (2015-2017)
Creators: name: Ιωαννίδου, Ιωάννα Χρήστου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Μουσουλμάνοι
Μετανάστες
Δημοσιογραφία
Muslims
Refugee
Media

description: Η παρούσα εργασία επιχειρεί να σκιαγραφήσει το πεδίο της δημοσιογραφικής αναπαράστασης της μεταναστευτικής κρίσης στην Ελλάδα. Ειδικότερα, αναζητά να μελετήσει το αφήγημα που χρησιμοποιεί ο ελληνικός Τύπος, προκειμένου να αναπαραστήσει τους μουσουλμάνους μετανάστες και πρόσφυγες κατά τη χρονική περίοδο 2015-2017. Η εργασία χρησιμοποιεί την ανάλυση περιεχομένου ως ερευνητική μέθοδο για να εξετάσει τα αφηγηματικά μοντέλα των ελληνικών εφημερίδων Καθημερινή, Αυγή και Μακεδονία. Μέσα από τη μελέτη των υπό έρευνα εφημερίδων, η εργασία επιθυμεί να δώσει απάντηση στο κεντρικό ερώτημα της έρευνα: Πως οι τρεις εφημερίδες αναπαράστησαν τη μεταναστευτική κρίση και εάν και κατά πόσο η θρησκεία επηρέασε το αφηγηματικό πλαίσιο της αναπαράστασης;
description: The present study aims to give detail information about the media representation of refugee crisis in Greece. In particular, this study seeks to capture the Greek media narrative concerning Muslim refugees during 2015-2017. This thesis uses the content analysis method to examine the representation of three Greek newspapers, Kathimerini, Avgi, and Macedonia. Through the content analysis, we give answer to our central question: How did these three newspapers represent the refugee crisis and did the element of religion affect its media representation?
Implementation and evaluation of various stop and wait type II hybrid ARQ schemes for mobile radio
Creators: name: Agostino, Remo L.
Publisher: name: University of British Columbia
Year: 2008

description: This thesis investigates the design and implementation issues involved in the development of various Stop-and-Wait (SW) Type II Hybrid Automatic Repeat reQuest(ARQ) strategies. The modulation scheme utilized is the North American digital cellular standard known as 7r/4—shift DQPSK. The general Complementary Punctured Convolutional (CPC) SW Type II ARQ scheme is presented and numerically analyzed in both an AWGN channel and a combined AWGN and Rayleigh fading channel. The three variations of the general scheme implemented are: Rate 3/4 CPC SW Type II ARQ, Rate 3/4CPC SW Type II ARQ with Code Combining, and an Adaptive CPC SW Type II ARQ scheme. The prototypes are implemented with two Spectrum TMS320C30 Digital SignalProcessing (DSP) cards and a host IBM PC. The experimental data for the prototypes were verified and were in good agreement with the numerical results. This validated the prototypes' correct and proper operation along with the DSP software modules used by the prototypes. It is shown that the upgrade of the CPC SW Type IT ARQ scheme to a Code Combining and an Adaptive scheme requires small software modifications. It is the versatility and flexibility of the DSP cards which allow these upgrades to be easily accomplished and extremely cost effective. The Code Combining upgrade increased the throughput performance of the general rate 3/4 scheme at low SNR levels. The Adaptive scheme resulted in an increase at both low and high SNR levels with a slight degradation at medium SNR levels with respect to the throughput curve of the general rate 3/4 scheme.
title: Stoff für Spekulationen
Creators: name: Kühnelt, Eva
name: Stüssi, Olivia
Publisher: name: Zentralbibliothek Zürich
Year: 2023
Subjects: subject: 900 Geschichte und Geografie::930 Geschichte des Altertums (bis ca. 499), Archäologie::930 Geschichte des Altertums bis ca. 499, Archäologie
subject: 700 Künste und Unterhaltung::740 Zeichnung, angewandte Kunst::746 Textilkunst
subject: Maur
subject: Steinzeit
subject: Archäologie
subject: Kulturgeschichte
subject: Kleidung
subject: Kunsthandwerk

description: Weil der Greifensee die Pfahlbausiedlung bei der Schifflände Maur überschwemmte, blieben organische Gegenstände wie Hölzer und sogar Textilien über Jahrtausende erhalten. Sie ermöglichen uns einmalige Einblicke in das Leben der Menschen, geben aber auch viele Rätsel auf.
title: Japanische Aprikose :
title: Richtlinien für die Durchführung der Prüfung auf Unterscheidbarkeit, Homogenität und Beständigkeit.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Group identity.
New Varieties of Plants
Mume

description: Zweck dieser Richtlinien („Prüfungsrichtlinien“) ist es, die in der Allgemeinen Einführung (Dokument TG/1/3) und deren verbundenen TGP-Dokumenten enthaltenen Grundsätze in detaillierte praktische Anleitung für die harmonisierte Prüfung der Unterscheidbarkeit, der Homogenität und der Beständigkeit (DUS) umzusetzen und insbesondere geeignete Merkmale für die DUS-Prüfung und die Erstellung harmonisierter Sortenbeschreibungen auszuweisen.
Long gamma-ray bursts without visible supernovae: a case study of redshift estimators and alleged novel objects
Creators: name: Dado, Shlomo
name: Dar, Arnon
name: De Rujula, A.
name: Plaga, Rainer
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has been argued that the observational limits on a supernova (SN) associated with GRB060614 convincingly exclude a SN akin to SN1998bw as its originator, and provide evidence for a new class of long-duration GRBs. We discuss this issue in the contexts of indirect 'redshift estimators' and of the fireball and cannonball models of GRBs. The latter explains the unusual properties of GRB060614: at its debated but favoured low redshift (0.125) they are predicted, as opposed to exceptional, if the associated core-collapse SN is of a recently discovered, very faint type. We take the occasion to discuss the 'association' between GRBs and SNe.
description: 19 pages, 2 figures. To be published in ApJ
title: An unexpected cause of breast pain: Mondor’s disease
Creators: name: Trovisco, Rita
Publisher: name: EURORAD
Year: 2025
Subjects: subject: Breast imaging
subject: Breast
subject: Emergency
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Embolism / Thrombosis
subject: Clinical Case

description: Clinical History: A 29-year-old healthy woman presented with a 4-day history of right breast pain and periareolar bruising associated with a 1-day periareolar indurated tumefaction. She denied any other symptoms, trauma, or regular medication use. Physical examination revealed a 2-cm indurated, painful cord-like structure in the periareolar region associated with bruising and petechial lesions.

description: 29 years, female
Income models of online personal projects
Creators: name: Panfilova, Anna Yurii
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ηλεκτρονική προσωπική μάρκα
Μοντέλο εισοδήματος
Ψηφιακή επιχειρηματικότητα
Online personal brand
Income model
Digital entrepreneurship

description: The question of applicability of the existing online media income models to online personal projects (based on their authors’ personal brands) is discussed in the present study. Taking into consideration the extant research talking about inefficiency of the ‘traditional’ two-sided (i.e. involving readers and advertisers) model in digital media, we try to investigate factors which presumably led to appearance of novel models. In particular, we examine: types of products/ content which are sold by the selected online personal projects, the free-to-access content they all offer to initially attract readers/ viewers, the additional social media platforms which are used for brand building and maintaining purposes, and the variety of income sources those projects have. Fifteen currently working online personal projects have been researched. Our results indicate ‘traditional’ income models are indeed being exploited by the projects – however, they’re also being transformed in order to fulfill projects’ commercial goals. In fact, online personal projects turned out to be digital entities in-between media and e-shops which implies they, in addition, tend to generate income streams typical for e-businesses (such as, for example, physical offline products’ sales).
description: ο ζήτημα της δυνατότητας εφαρμογής των υφιστάμενων μοντέλων εισοδήματος σε απευθείας σύνδεση μέσων μαζικής ενημέρωσης σε διαδικτυακά προσωπικά έργα (με βάση τις προσωπικές μάρκες των συγγραφέων τους) συζητείται στην παρούσα μελέτη. Λαμβάνοντας υπόψη την υπάρχουσα έρευνα που μιλά για την αναποτελεσματικότητα του μοντέλου «παραδοσιακού» διπλού όρου (δηλ. Με τη συμμετοχή αναγνωστών και διαφημιστών) στα ψηφιακά μέσα, προσπαθούμε να διερευνήσουμε παράγοντες που προφανώς οδήγησαν στην εμφάνιση νέων μοντέλων.
Doublet bands in $^{126}$Cs in the triaxial rotor model coupled with two quasiparticles
Creators: name: Wang, S. Y.
name: Zhang, S. Q.
name: Qi, B.
name: Meng, J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The positive parity doublet bands based on the $πh_{11/2}\otimesνh_{11/2}$ configuration in $^{126}$Cs have been investigated in the two quasi-particles coupled with a triaxial rotor model. The energy spectra $E(I)$, energy staggering parameter $S(I)=[E(I)-E(I-1)]/2I$, $B(M1)$ and $B(E2)$ values, intraband $B(M1)/B(E2)$ ratios, $B(M1)_{\textrm{in}}/B(M1)_{\textrm{out}}$ ratios, and orientation of the angular momentum for the rotor as well as the valence proton and neutron are calculated. After including the pairing correlation, good agreement has been obtained between the calculated results and the data available, which supports the interpretation of this positive parity doublet bands as chiral bands.
description: Phys.Rev.C (accepted)
A spatial correlation analysis for a toroidal universe
Creators: name: Aurich, Ralf
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The spatial cross-correlation function xi_C recently introduced by Roukema et al. is applied to the equilateral toroidal topology of the universe. Several CMB maps based on the WMAP 5yr data are analysed and a small likelihood in favour of a torus cell is revealed. The results are compared to ten LCDM simulations which point to a high false positive rate of the spatial-correlation-function method such that a firm conclusion cannot be drawn.
Global Electroweak Symmetric Vacuum
Creators: name: Bai, Yang
name: Lee, Seung J.
name: Son, Minho
name: Ye, Fang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Although the Higgs potential in the Standard Model (SM) contains only a simple electroweak symmetry breaking vacuum in the small field region, additional metastable or global vacua could exist in models beyond the SM. In this paper, we study one intriguing scenario with an additional electroweak symmetric vacuum that could be the global one. For the thermal universe ending at the current metastable vacuum, the electroweak symmetry should stay non-restored at high temperatures. We realize the scenario in a model with Higgs-portal couplings to SM singlet scalars with approximately global O(N) symmetries with a large N. For a large portion of model parameter space, both the quantum and thermal tunneling rates are suppressed such that our current metastable vacuum is long-lived enough. Our scenario predicts order-one changes for the Higgs self-couplings and a large contribution to the signal of the off-shell Higgs invisible decay. It can be partly probed at the LHC Run 3 and well tested at the high luminosity LHC. We also discuss the subcritical (anti-de Sitter) bubbles from the thermal tunneling that could have a large population and interesting cosmological implications.
description: 38 pages, 9 figures; v2: references added, final version in JHEP
Ancestral processes with selection: Branching and Moran models
Creators: name: Baake, E.
name: Bialowons, R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Probability (math.PR)
subject: FOS: Biological sciences
subject: FOS: Mathematics

description: We consider two versions of stochastic population models with mutation and selection. The first approach relies on a multitype branching process; here, individuals reproduce and change type (i.e., mutate) independently of each other, without restriction on population size. We analyze the equilibrium behaviour of this model, both in the forward and in the backward direction of time; the backward point of view emerges if the ancestry of individuals chosen randomly from the present population is traced back into the past. The second approach is the Moran model with selection. Here, the population has constant size N. Individuals reproduce (at rates depending on their types), the offspring inherits the parent's type, and replaces a randomly chosen individual (to keep population size constant). Independently of the reproduction process, individuals can change type. As in the branching model, we consider the ancestral lines of single individuals chosen from the equilibrium population. We use analytical results of Fearnhead (2002) to determine the explicit properties, and parameter dependence, of the ancestral distribution of types, and its relationship with the stationary distribution in forward time.
description: minor changes, updated references; Banach Center Publications, in press
Semantic and grammatical elicitation: Epistemic indefinites and complementation
Creators: name: Kipkoech, Linus
name: Bossi, Madeline
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: sgc

description: One .mp4 file and one .pdf file. Elicitation of scopal possibilities of epistemic indefinites and examples with singleton extensions. Elicitation of different complement-taking predicates.
Non-Hermitian Hamiltonians with real eigenvalues coupled to electric fields: from the time-independent to the time dependent quantum mechanical formulation
Creators: name: Faria, Carla Figueira de Morisson
name: Fring, Andreas
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide a reviewlike introduction into the quantum mechanical formalism related to non-Hermitian Hamiltonian systems with real eigenvalues. Starting with the time-independent framework we explain how to determine an appropriate domain of a non-Hermitian Hamiltonian and pay particular attention to the role played by PT-symmetry and pseudo-Hermiticity. We discuss the time-evolution of such systems having in particular the question in mind of how to couple consistently an electric field to pseudo-Hermitian Hamiltonians. We illustrate the general formalism with three explicit examples: i) the generalized Swanson Hamiltonians, which constitute non-Hermitian extensions of anharmonic oscillators, ii) the spiked harmonic oscillator, which exhibits explicit supersymmetry and iii) the -x^4-potential, which serves as a toy model for the quantum field theoretical phi^4-theory.
description: 14 pages, 3 figures, to appear in Laser Physics, minor typos corrected
Multiple charge density waves and superconductivity nucleation at antiphase domain walls in the nematic pnictide Ba$_{1-x}$Sr$_{x}$Ni$_{2}$As$_{2}$
Creators: name: Lee, Sangjun
name: Collini, John
name: Sun, Stella X. -L.
name: Mitrano, Matteo
name: Guo, Xuefei
name: Eckberg, Chris
name: Paglione, Johnpierre
name: Fradkin, Eduardo
name: Abbamonte, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: How superconductivity interacts with charge or nematic order is one of the great unresolved issues at the center of research in quantum materials. Ba$_{1-x}$Sr$_{x}$Ni$_{2}$As$_{2}$ (BSNA) is a charge ordered pnictide superconductor recently shown to exhibit a six-fold enhancement of superconductivity due to nematic fluctuations near a quantum phase transition (at $x_c=0.7$). The superconductivity is, however, anomalous, with the resistive transition for $0.4 < x< x_c$ occurring at a higher temperature than the specific heat anomaly. Using x-ray scattering, we discovered a new charge density wave (CDW) in BSNA in this composition range. The CDW is commensurate with a period of two lattice parameters, and is distinct from the two CDWs previously reported in this material. We argue that the anomalous transport behavior arises from heterogeneous superconductivity nucleating at antiphase domain walls in this CDW. We also present new data on the incommensurate CDW, previously identified as being unidirectional, showing that is a rotationally symmetric, "4$Q$" state with $C_4$ symmetry. Our study establishes BSNA as a rare material containing three distinct CDWs, and an exciting testbed for studying coupling between CDW, nematic, and SC orders.
description: 5 pages, 5 figures + supplemental material document
Ο δίκαιος αυτοκράτορας: Η εικόνα του Θεοφίλου (829-842) στις πηγές
Creators: name: Τσερκέζης, Ελευθέριος Βασιλείου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αυτοκράτορας Θεόφιλος
Δικαιοσύνη
Βυζαντινές πηγές
Emperor Theophilos
Justice
Byzantine sources

description: Σκοπός της μεταπτυχιακής διπλωματικής εργασίας είναι η μελέτη της εικόνας του Βυζαντινού αυτοκράτορα Θεοφίλου (829-842) στις πηγές, με έμφαση στην πιο χαρακτηριστική ιδιότητα που του αποδίδεται, αυτή του δίκαιου ηγεμόνα. Αρχικά, εξετάζουμε τη γενικότερη εξέλιξη του πορτραίτου καθώς και τις διαθέσιμες πληροφορίες για τη νομοθετική δράση του αυτοκράτορα. Ακολούθως, παρουσιάζουμε τις κυρίως μαρτυρίες των πηγών σχετικά με τη δικαιοσύνη του και επιχειρούμε προσέγγιση της προέλευσης, της ιστορικότητας και της λογοτεχνικής τους διάστασης. Το θέμα τίθεται επίσης στο ιδεολογικό και πολιτικό του πλαίσιο. Συγκεκριμένα, εξετάζουμε τη σχέση της εικόνας του δίκαιου Θεοφίλου με τη βυζαντινή αυτοκρατορική ιδεολογία και τον προσανατολισμό της πολιτικής του ίδιου. Τέλος, συζητούμε την πρόσληψη και χρήση της εικόνας του αυτοκράτορα από τη γραμματεία της εποχής της Μακεδονικής δυναστεία
description: The objective of this thesis is the study of the image of the Byzantine Emperor Theophilos (829-842) in the primary sources, with focus on the most characteristic quality that is attributed to him, that of the just ruler. Initially, we examine the general evolution of the portrait as well as the available information about the Emperor’s legislative activity. Subsequently, we present the testimonies of the sources about his justice and attempt an approach to their origin, historicity and literary dimension. The subject is also set in its ideological and political context. More specifically, we examine the relationship of the image of the just Theophilos to the Byzantine imperial ideology and the orientation of his own policy. Finally, we discuss the reception and use of the Emperor’s image by the literature of the period of the Macedonian dynasty
Nernst effect in semi-metals: the meritorious heaviness of electrons
Creators: name: Behnia, Kamran
name: Measson, Marie-Aude
name: Kopelevich, Yakov
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a study of electric, thermal and thermoelectric transport in elemental Bismuth, which presents a Nernst coefficient much larger than what was found in correlated metals. We argue that this is due to the combination of an exceptionally low carrier density with a very long electronic mean-free-path. The low thermomagnetic figure of merit is traced to the lightness of electrons. Heavy-electron semi-metals, which keep a metallic behavior in presence of a magnetic field, emerge as promising candidates for thermomagnetic cooling at low temperatures.
description: 4 pages, including 4 figures
Προσφυγικοί καταυλισμοί. Ο σχεδιασμός του χώρου ως ανταπόκριση στην αποκαλούμενη "προσφυγική κρίση" μέσα από τη διερεύνηση κοινωνικο - χωρικών διαστάσεων
Creators: name: Γελαστοπούλου, Ευτέρπη Πέτρου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Προσφυγικοί καταυλισμοί
Σχεδιασμός χώρου
Κοινωνικο – χωρικές διαστάσεις
Refugee camps
Spatial planning
Socio – spatial dimensions

description: Η Ελλάδα ήταν και είναι χώρα εξόδου μεταναστών, αλλά τα τελευταία χρόνια λόγω των διεθνών πολιτικών, κοινωνικών και οικονομικών εξελίξεων αλλά και της γεωγραφικής της θέσης είναι χώρα υποδοχής. Ειδικότερα από τον Μάρτιο του 2016 μεγάλο μέρος του πληθυσμού που ήταν σε κίνηση λόγω διακοπής της Βαλκανικής οδού παρέμεινε στην Ελλάδα με αποτέλεσμα να χρειάζονται άμεσες ενέργειες προκειμένου να μπορέσουν να στεγαστούν και να καλυφθούν αρχικά οι ανάγκες του επείγοντος. Η δημιουργία καταυλισμών στις παρυφές διαφόρων πόλεων της χώρας ήταν η βασική πρώτη ανταπόκριση. Η παρούσα εργασία προσπαθεί να διερευνήσει τη συνθήκη της απάντησης του επείγοντος μέσα από το σχεδιασμό και τη λειτουργία των προσφυγικών καταυλισμών όπου στέγασαν και στεγάζουν ακόμα και σήμερα μεγάλο αριθμό ατόμων. Γίνεται μια προσπάθεια προσέγγισης του χώρου ως μία διάσταση της κοινωνικής πολιτικής. Η χωρική απόσταση σχετίζεται άμεσα με το ζήτημα της πρόσβασης σε αστικούς πόρους, σε ευκαιρίες και δικαιώματα. Οι προσφυγικοί καταυλισμοί ήταν και είναι οι υποδοχείς της αποκαλούμενης “προσφυγικής κρίσης” και των επιπτώσεων αυτής, αναδεικνύοντας τις κοινωνικές αντιθέσεις και συγκρούσεις που συχνά τροποποιούν τους ήδη υπάρχοντες κοινωνικούς δεσμούς και τις χωρικές σηματοδοτήσεις
description: Greece has been, and still is, an outword migration country, but in recent years and due to international political, social and economic developments and its geographical location it has also become a host country. In particular, as of March 2016, a large proportion of the population that was on the move has actually remained in Greece due to a Balkan roadblock. This brought about the need for immediate actions for the accommodation of these people and the initial coverage of their emergency needs. The major first response to this was the establishment of camps on the outskirts of various cities in the country. The present work seeks to explore the framework of the emergency response through the design and operation of refugee camps that housed and are still housing large numbers of people. In this there is made an attempt to approach space as a dimension of social policy. Spatial distance is directly related to the issue of access to urban resources, opportunities and rights. The refugee camps have been the hosting structures of the so-called "refugee crisis" and its effects, highlighting the social contradictions
Ray-Optical Evaluation of Scattering from Electrically Large Metasurfaces Characterized by Locally Periodic Surface Susceptibilities
Creators: name: Stewart, Scott
name: de Jong, Yvo L. C.
name: Smy, Tom J.
name: Gupta, Shulabh
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: This work continues the development of the raytracing method of [1] for computing the scattered fields from metasurfaces characterized by locally periodic reflection and transmission coefficients. In this work, instead of describing the metasurface in terms of scattering coefficients that depend on the incidence direction, its scattering behavior is characterized by the surface susceptibility tensors that appear in the generalized sheet transition conditions (GSTCs). As the latter quantities are constitutive parameters, they do not depend on the incident field and thus enable a more compact and physically motivated description of the surface. The locally periodic susceptibility profile is expanded into a Fourier series, and the GSTCs are rewritten in a form that enables them to be numerically solved for in terms of the reflected and transmitted surface fields. The scattered field at arbitrary detector locations is constructed by evaluating critical-point contributions of the first and second kinds using a Forward Ray Tracing (FRT) scheme. The accuracy of the resulting framework has been verified with an Integral Equation based Boundary Element Method (BEM)-GSTC full-wave solver for a variety of examples such as a periodically modulated metasurface, a metasurface diffuser and a beam collimator.
description: 12 pages, 9 figures
Revisiting Bayesian Optimization in the light of the COCO benchmark
Creators: name: Riche, Rodolphe Le
name: Picheny, Victor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: It is commonly believed that Bayesian optimization (BO) algorithms are highly efficient for optimizing numerically costly functions. However, BO is not often compared to widely different alternatives, and is mostly tested on narrow sets of problems (multimodal, low-dimensional functions), which makes it difficult to assess where (or if) they actually achieve state-of-the-art performance. Moreover, several aspects in the design of these algorithms vary across implementations without a clear recommendation emerging from current practices, and many of these design choices are not substantiated by authoritative test campaigns. This article reports a large investigation about the effects on the performance of (Gaussian process based) BO of common and less common design choices. The experiments are carried out with the established COCO (COmparing Continuous Optimizers) software. It is found that a small initial budget, a quadratic trend, high-quality optimization of the acquisition criterion bring consistent progress. Using the GP mean as an occasional acquisition contributes to a negligible additional improvement. Warping degrades performance. The Matérn 5/2 kernel is a good default but it may be surpassed by the exponential kernel on irregular functions. Overall, the best EGO variants are competitive or improve over state-of-the-art algorithms in dimensions less or equal to 5 for multimodal functions. The code developed for this study makes the new version (v2.1.1) of the R package DiceOptim available on CRAN. The structure of the experiments by function groups allows to define priorities for future research on Bayesian optimization.
Flow cytometry data management workflow at M.I.O
Creators: name: Libes, Maurice
name: Thyssen, Melilotus
name: Izard, Lloyd
name: Mathilde Couteyen Carpay
name: Grégori, Gérald
Publisher: name: Zenodo
Year: 2024

description: This presentation describes the Flow cytometry data management workflow created at M.I.O (UMR 7204 CNRS, france)

The objective is to manage in situ near real time flow cytometry data, and to share FCM data with scientific communityvia SeadataNet portal with metadata, Quality Codes, in interoperable formats such as ODV

the software pipeline involves three steps :

I) We convert complex FCM data files into a CSV readable format with numerous quality controlswith consensual vocabulary coming  from BODC F02 thesaurus, and FCM large dedicated metadata

ii) We insert the selected FCM data into a relational DB allowing to perform queries

iii) We use Seadatanet infrastructure to make our data Findable, Accessible, Interoperable and Reusable in the Seadatanet portal

This work can also be used in the Odatis national marine data infrastructure
Link Floer homology detects the Thurston norm
Creators: name: Ni, Yi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R58;57M27;57R30

description: We prove that, for a link $L$ in a rational homology 3--sphere, the link Floer homology detects the Thurston norm of its complement. This generalizes the previous results due to Ozsváth, Szabó and the author.
description: 25 pages, 1 figure
THE ROLE OF FOLKLORE IN THE DEVELOPMENT OF PRESCHOOL CHILDREN
Creators: name: Akhmedova Feruza Ibragimovna
Publisher: name: Zenodo
Year: 2024

description: Annotation

The article's concept is still extremely important today since moral instruction through folklore produces positive and useful outcomes. Folk art, which has its roots in ancient Greece, enhances communication and helps people think figuratively. Thus, it follows logically that folklore plays a central part in an individual's moral and aesthetic upbringing. An educational resource is folklore.

Keywords: folklore, tradition, custom, writing, fairy tale, joke
Roton pair density wave and unconventional strong-coupling superconductivity in a topological kagome metal
Creators: name: Chen, Hui
name: Yang, Haitao
name: Hu, Bin
name: Zhao, Zhen
name: Yuan, Jie
name: Xing, Yuqing
name: Qian, Guojian
name: Huang, Zihao
name: Li, Geng
name: Ye, Yuhan
name: Ma, Sheng
name: Ni, Shunli
name: Zhang, Hua
name: Yin, Qiangwei
name: Gong, Chunsheng
name: Tu, Zhijun
name: Lei, Hechang
name: Tan, Hengxin
name: Zhou, Sen
name: Shen, Chengmin
name: Dong, Xiaoli
name: Yan, Binghai
name: Wang, Ziqiang
name: Gao, Hong-Jun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The transition-metal kagome lattice materials host frustrated, correlated, and topological quantum states of matter. Recently, a new family of vanadium-based kagome metals AV3Sb5 (A=K, Rb, and Cs) with topological band structures has been discovered. These layered compounds are nonmagnetic and undergo charge density wave transitions before developing superconductivity at low temperatures. Here we report the observation of unconventional superconductivity and pair density wave (PDW) in CsV3Sb5 using scanning tunneling microscope/spectroscopy (STM/STS) and Josephson STS. We find that CsV3Sb5 exhibits a V-shaped pairing gap Δ~0.5 meV and is a strong-coupling superconductor (2Δ/kBTc~5) that coexists with 4a0 unidirectional and 2a0X2a0 charge order. Remarkably, we discover a 3Q PDW accompanied by bidirectional 4a0/3 spatial modulations of the superconducting gap, coherence peak and gap-depth in the tunneling conductance. We term this novel quantum state a roton-PDW associated with an underlying vortex-antivortex lattice that can account for the observed conductance modulations. Probing the electronic states in the vortex halo in an applied magnetic field, in strong-field that suppresses superconductivity, and in zero-field above Tc reveals that the PDW is a primary state responsible for an emergent pseudogap and intertwined electronic order. Our findings show striking analogies and distinctions to the phenomenology of high-Tc cuprate superconductors, and provide groundwork for understanding the microscopic origin of correlated electronic states and superconductivity in vanadium-based kagome metals.
description: Nature (2021)
Shape Minimization of Dendritic Attenuation
Creators: name: Henrot, Antoine
name: Privat, Yannick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Analysis of PDEs (math.AP)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 49J20, 49R50, 92C15

description: What is the optimal shape of a dendrite? Of course, optimality refers to some particular criterion. In this paper, we look at the case of a dendrite sealed at one end and connected at the other end to a soma. The electrical potential in the fiber follows the classical cable equations as established by W. Rall. We are interested in the shape of the dendrite which minimizes either the attenuation in time of the potential or the attenuation in space. In both cases, we prove that the cylindrical shape is optimal.
Formal specification, simulation, and performance evaluation of a mobile data link protocol using Estelle
Creators: name: Chen, Ted Y. G.
Publisher: name: University of British Columbia
Year: 2009

description: Communication protocols consists of a set of distributed algorithms which allow two or more communicating entities to exchange information. Typically, these protocols represent one of the seven layers in the Open Systems Interconnection (OSI) Reference Model. Traditionally, protocols approved by international standards organizations, such as the ISO or CCITf, have been defined by a combination of English prose, state tables, and state diagrams. These informal methods, although useful, are imprecise and can lead to ambiguities. Using Estelle, a formal description technique (FDT), protocol specifications can be made clear and free from any ambiguities and provide a standardized manner in which to document protocol operations. Formal methods also provide a foundation for performing protocol validation and implementation, and evaluating protocol efficiency. A brief summary of Estelle constructs and its application in modelling communication protocol elements is presented, and a data link layer protocol, representing layer two of the OSI model, is introduced. This protocol is based on a Type-IT Hybrid ARQ scheme and was designed to provide reliable communications in a mobile radio environment. The mobile data link protocol (MDLP) is formally specified using Estelle. In addition, the MDLP specification is tested for conformance to the informal prose description. Finally, the operation of the MDLP is simulated and a throughput evaluation is performed using a statistical channel model. Moreover, for comparison purposes, throughput results are also obtained for a selective repeat ARQ scheme. The protocol design, testing, and simulation was performed using the Estelle Development Toolset (EDT).
Negative magnetic susceptibility and nonequivalent ensembles for the mean-field $ϕ^4$ spin model
Creators: name: Campa, A.
name: Ruffo, S.
name: Touchette, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We calculate the thermodynamic entropy of the mean-field $ϕ^4$ spin model in the microcanonical ensemble as a function of the energy and magnetization of the model. The entropy and its derivative are obtained from the theory of large deviations, as well as from Rugh's microcanonical formalism, which is implemented by computing averages of suitable observables in microcanonical molecular dynamics simulations. Our main finding is that the entropy is a concave function of the energy for all values of the magnetization, but is nonconcave as a function of the magnetization for some values of the energy. This last property implies that the magnetic susceptibility of the model can be negative when calculated microcanonically for fixed values of the energy and magnetization. This provides a magnetization analog of negative heat capacities, which are well-known to be associated in general with the nonequivalence of the microcanonical and canonical ensembles. Here, the two ensembles that are nonequivalent are the microcanonical ensemble in which the energy and magnetization are held fixed and the canonical ensemble in which the energy and magnetization are fixed only on average by fixing the temperature and magnetic field.
description: 14 pages, 4 figures, 2 appendices, REVTeX4
Extensions of an $AC(σ)$ functional calculus
Creators: name: Doust, Ian
name: Terauds, Venta
Publisher: name: arXiv
Year: 2008
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47B40

description: On a reflexive Banach space $X$, if an operator $T$ admits a functional calculus for the absolutely continuous functions on its spectrum $σ(T) \subseteq \mathbb{R}$, then this functional calculus can always be extended to include all the functions of bounded variation. This need no longer be true on nonreflexive spaces. In this paper, it is shown that on most classical separable nonreflexive spaces, one can construct an example where such an extension is impossible. Sufficient conditions are also given which ensure that an extension of an $\AC$ functional calculus is possible for operators acting on families of interpolation spaces such as the $L^p$ spaces.
A Review of Assistive Technologies for Activities of Daily Living of Elderly
Creators: name: Thakur, Nirmalya
name: Han, Chia Y.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: One of the distinct features of this century has been the population of older adults which has been on a constant rise. Elderly people have several needs and requirements due to physical disabilities, cognitive issues, weakened memory and disorganized behavior, that they face with increasing age. The extent of these limitations also differs according to the varying diversities in elderly, which include age, gender, background, experience, skills, knowledge and so on. These varying needs and challenges with increasing age, limits abilities of older adults to perform Activities of Daily Living (ADLs) in an independent manner. To add to it, the shortage of caregivers creates a looming need for technology-based services for elderly people, to assist them in performing their daily routine tasks to sustain their independent living and active aging. To address these needs, this work consists of making three major contributions in this field. First, it provides a rather comprehensive review of assisted living technologies aimed at helping elderly people to perform ADLs. Second, the work discusses the challenges identified through this review, that currently exist in the context of implementation of assisted living services for elderly care in Smart Homes and Smart Cities. Finally, the work also outlines an approach for implementation, extension and integration of the existing works in this field for development of a much-needed framework that can provide personalized assistance and user-centered behavior interventions to elderly as per their varying and ever-changing needs.
Past and present star formation in the SMC: NGC 346 and its neighborhood
Creators: name: Sabbi, E.
name: Sirianni, M.
name: Nota, A.
name: Tosi, M.
name: Gallagher, J.
name: Meixner, M.
name: Oey, M. S.
name: Walterbos, R.
name: Pasquali, A.
name: Smith, L. J.
name: Angeretti, L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In the quest of understanding how star formation occurs and propagates in the low metallicity environment of the Small Magellanic Cloud (SMC), we acquired deep F555W (~V), and F814W (~I) HST/ACS images of the young and massive star forming region NGC 346. These images and their photometric analysis provide us with a snapshot of the star formation history of the region. We find evidence for star formation extending from ~10 Gyr in the past until ~150 Myr in the field of the SMC. The youngest stellar population (~3 +/- 1 Myr) is associated with the NGC 346 cluster. It includes a rich component of low mass pre-main sequence stars mainly concentrated in a number of sub-clusters, spatially co- located with CO clumps previously detected by Rubio et al. (2000). Within our analysis uncertainties, these sub-clusters appear coeval with each other. The most massive stars appear concentrated in the central sub-clusters, indicating possible mass segregation. A number of embedded clusters are also observed. This finding, combined with the overall wealth of dust and gas, could imply that star formation is still active. An intermediate age star cluster, BS90, formed ~4.3 +/-0.1 Gyr ago, is also present in the region. Thus, this region of the SMC has supported star formation with varying levels of intensity over much of the cosmic time.
description: 38 pages, 13 figures, 3 tables; AJ accepted
Διαχείριση και αντιμετώπιση οξείας δηλητηρίασης στο Τμήμα Επειγόντων Περιστατικών και στη Μονάδα Εντατικής Θεραπείας
Creators: name: Αηδόνη, Ζωή Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Κλινική Φαρμακολογία
Βιομηχανική Φαρμακολογία
Κλινική Τοξικολογία
Καταγραφή
Clinical Pharmacology
Industrial Pharmacology
Clinical Toxicology
Reference

description: Οι διεγερτικές ουσίες που προκαλούν αύξηση της κινητικής και ψυχολογικής δραστηριότητας. Η δραστηριότητα της διέγερσης ενδέχεται να συνοδεύεται από διαταραχές της συνείδησης, του προσανατολισμού, της ομιλίας, της μορφής, της σκέψης, του συναισθήματος και του άγχους. Οι διεγερτικές ουσίες κατηγοριοποιούνται ανάλογα με την επίδρασή τους στο ΚΝΣ. Στην παρούσα εργασία αναφέρονται αναλυτικά οι φαρμακοκινητικές, οι φαρμακοδυναμικές ιδιότητες και οι ανεπιθύμητες ενέργειες των αμφεταμινών, των μεθαμφεταμινών, της ηρωίνης, την κοκαΐνης, της κάνναβης, μεθαδόνης, MDMA και LSD. Αναφέρονται αναλυτικά τα επιδημιολογικά δεδομένα για τις παραπάνω ουσίες. Επίσης δίνεται ιδιαίτερη έμφαση στις ανεπιθύμητες ενέργειες όπως η ραβδομυόλυση, η ηπατική ανεπάρκεια, η υπονατριαιμία, το εγκεφαλικό οίδημα, το σύνδρομο σεροτονίνης, η υπερπυρεξία, η πολυοργανική ανεπάρκεια και ο ξαφνικός θάνατος. Επιπλέον παρουσιάζονται δύο περιπτώσεις περιστατικών οξείας δηλητηρίασης ασθενών που έχουν κάνει χρήση MDMA. Σκοπός της παρούσας εργασίας ήταν η διερεύνηση της οξείας δηλητηρίασης από διεγερτικές ουσίες, με ιδιαίτερη έμφαση στο MDMA στην Μονάδα Εντατικής Θεραπείας.
description: Stimulant substances cause an increase in motor and psychological activity. Stimulus activity may be accompanied by disorders of consciousness, orientation, speech, form, thinking, emotion, and anxiety. Stimulants are categorized according to their effects on the CNS. The present work details the pharmacokinetics, pharmacodynamic properties and side effects of amphetamines, methamphetamines, heroin, cocaine, cannabis, methadone, MDMA, and LSD. The epidemiological data for the above substances are detailed. Emphasis is also placed on side effects such as rhabdomyolysis, liver failure, hyponatraemia, cerebral edema, serotonin syndrome, hyperpyrexia, multi-organ failure, and sudden death. In addition there are two cases of acute poisoning cases of patients using MDMA. The aim of the present study was to investigate acute poisoning by stimulants, with particular emphasis on MDMA in the Intensive Care Unit.
title: Mume (Japanese Apricot) :
title: Guidelines for the Conduct of Tests for Distinctness, Uniformity and Stability.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Mume
Group identity.
New Varieties of Plants

description: The purpose of these guidelines (“Test Guidelines”) is to elaborate the principles contained in the General Introduction (document TG/1/3), and its associated TGP documents, into detailed practical guidance for the harmonized examination of distinctness, uniformity and stability (DUS) and, in particular, to identify appropriate characteristics for the examination of DUS and production of harmonized variety descriptions.
Representations of certain non-rational vertex operator algebras of affine type
Creators: name: Adamovic, Drazen
name: Perse, Ozren
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B69, 17B67

description: In this paper we study a series of vertex operator algebras of integer level associated to the affine Lie algebra $A_{\ell}^{(1)}$. These vertex operator algebras are constructed by using the explicit construction of certain singular vectors in the universal affine vertex operator algebra $N(n-2,0)$ at the integer level. In the case $n=1$ or $l=2$, we explicitly determine Zhu's algebras and classify all irreducible modules in the category $\mathcal{O}$. In the case $l=2$, we show that the vertex operator algebra $N(n-2,0)$ contains two linearly independent singular vectors of the same conformal weight.
description: 15 pages, LaTeX; final version, to appear in J. Algebra
Deep HI observations of the surroundings of ram pressure stripped Virgo spiral galaxies - Where is the stripped gas?
Creators: name: Vollmer, B.
name: Huchtmeier, W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Deep Effelsberg 100-m HI observations of 5 HI deficient Virgo spiral galaxies are presented. No new extended HI tail is found in these galaxies. The already known HI tail north of NGC 4388 does not significantly extend further than a WSRT image has shown. Based on the absence of HI tails in a sample of 6 Virgo spiral galaxies and a balance of previous detections of extraplanar gas in the targeted galaxies we propose a global picture where the outer gas disk (beyond the optical radius R_25) is removed much earlier than expected by the classical ram pressure criterion. Based on the two-phase nature of atomic hydrogen located in a galactic disk, we argue that the warm diffuse HI in the outer galactic disk is evaporated much more rapidly than the cold dense HI. Therefore, after a ram pressure stripping event we can only observe atomic hydrogen which was cold and dense before it was removed from the galactic disk. This global picture is consistent with all available observations. We detect between 0.3% and 20% of the stripped mass assuming an initially non-deficient galaxy and between 3% and 70% of the stripped mass assuming an initially HI deficient galaxy (def=0.4). Under the latter assumption we estimate an evaporation rate by dividing the missing mass by the estimated time to peak ram pressure from dynamical simulations. We find evaporation rates between 10 and 100 M_solar/yr.
description: 9 pages, 9 figures, accepted for publication in A&A
Photon Conversion in Thin-film Lithium Niobate Nanowaveguides: A Noise Analysis
Creators: name: Fan, Heng
name: Ma, Zhaohui
name: Chen, Jiayang
name: Li, Zhan
name: Tang, Chao
name: Sua, Yongmeng
name: Huang, Yuping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Wavelength transduction of single-photon signals is indispensable to networked quantum applications, particularly those incorporating quantum memories. Lithium niobate nanophotonic devices have demonstrated favorable linear, nonlinear, and electro-optical properties to deliver this crucial function while offering superiror efficiency, integrability, and scalability. Yet, their quantum noise level--an crucial metric for any single-photon based application--has yet to be understood. In this work, we report the first study with the focus on telecom to near-visible conversion driven by a telecom pump of small detuning, for practical considerations in distributed quantum processing over fiber networks. Our results find the noise level to be on the order of $10^{-4}$ photons per time-frequency mode for high conversion, allowing faithful pulsed operations. Through carefully analyzing the origins of such noise and each's dependence on the pump power and wavelength detuning, we have also identified a formula for noise suppression to $10^{-5}$ photons per mode. Our results assert a viable, low-cost, and modular approach to networked quantum processing and beyond using lithium niobate nanophotonics.