cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The distribution of a linear predictor after model selection: Unconditional finite-sample distributions and asymptotic approximations
Creators: name: Leeb, Hannes
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 62E15 (Primary) 62F10, 62F12, 62J05 (Secondary)

description: We analyze the (unconditional) distribution of a linear predictor that is constructed after a data-driven model selection step in a linear regression model. First, we derive the exact finite-sample cumulative distribution function (cdf) of the linear predictor, and a simple approximation to this (complicated) cdf. We then analyze the large-sample limit behavior of these cdfs, in the fixed-parameter case and under local alternatives.
description: Published at http://dx.doi.org/10.1214/074921706000000518 in the IMS Lecture Notes--Monograph Series (http://www.imstat.org/publications/lecnotes.htm) by the Institute of Mathematical Statistics (http://www.imstat.org)
Efficient quantum circuit simulation using a multi-qubit Bloch vector representation of density matrices
Creators: name: Huang, Qunsheng
name: Mendl, Christian B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In the Bloch sphere picture, one finds the coefficients for expanding a single-qubit density operator in terms of the identity and Pauli matrices. A generalization to $n$ qubits via tensor products represents a density operator by a real vector of length $4^n$, conceptually similar to a statevector. Here, we study this approach for the purpose of quantum circuit simulation, including noise processes. The tensor structure leads to computationally efficient algorithms for applying circuit gates and performing few-qubit quantum operations. In view of variational circuit optimization, we study ``backpropagation'' through a quantum circuit and gradient computation based on this representation, and generalize our analysis to the Lindblad equation for modeling the (non-unitary) time evolution of a density operator.
description: 10 pages
Morse potential and its relationship with the Coulomb in a position-dependent mass background
Creators: name: Bagchi, B.
name: Gorain, P. S.
name: Quesne, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We provide some explicit examples wherein the Schrödinger equation for the Morse potential remains exactly solvable in a position-dependent mass background. Furthermore, we show how in such a context, the map from the full line $(- \infty, \infty)$ to the half line $(0, \infty)$ may convert an exactly solvable Morse potential into an exactly solvable Coulomb one. This generalizes a well-known property of constant-mass problems.
description: 9 pages, no figure; final published version
Recent Results in Bottomonium Spectroscopy
Creators: name: Pedlar, Todd K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We review recent results in the spectroscopy of the bottomonium system. Among the recent measurements discussed are measurements of decays of all three sub-open threshold triplet-S bottomonium resonances to all three lepton flavors, and measurements of the rates and invariant mass distributions for dipion transitions among the triplet-S bottomonium states. Results from CLEO, Belle and BaBar are presented.
description: Contribution to the proceedings for "Heavy Quarks and Leptons 2006" (HQL06), 16-20 Oct 2006 Munich, Germany
String cosmological model in the presence of a magnetic flux
Creators: name: Saha, Bijan
name: Visinescu, Mihai
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A Bianchi type I string cosmological model in the presence of a magnetic flux is investigated. A few plausible assumptions regarding the parametrization of the cosmic string and magneto-fluid are introduced and some exact analytical solutions are presented.
description: 9 pages, 4 Figures
Βιργιλίου Αινειάδα: μια φεμινιστική ανάγνωση της Διδώς
Creators: name: Οικονόμου, Ελένη Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Φεμινισμός
Αινειάδα
Διδώ
Feminism
Aeneid
Dido

description: Η Αινειάδα, ακολουθώντας τις συμβάσεις του λογοτεχνικού είδους στο οποίο ανήκει, αποτυπώνει ευθέως ή εμμέσως τις πατριαρχικές αντιλήψεις της Αρχαιότητας. Σύμφωνα με αυτές, οι ρόλοι των δύο φύλων είναι «φυσικοί» και προκαθορισμένοι, με τον άνδρα να αποτελεί συνώνυμο της αποφασιστικότητας, του δυναμισμού και της πίστης στο καθήκον, και τη γυναίκα να είναι δέσμια των συναισθημάτων και των παρορμήσεων. Παρότι ο Αινείας, ως πρωταγωνιστής του έπους, στέκει πιστός στις επιταγές της πατριαρχίας, η φιγούρα της Διδώς εισέρχεται στο έπος και θέτει υπό αμφισβήτηση την κυρίαρχη ιδεολογία, στην οποία και στηρίζεται το ρωμαϊκό αυτοκρατορικό οικοδόμημα. Ειδικότερα, από την πρώτη της εμφάνιση στον αινειαδικό κόσμο γίνεται έκδηλη η ισχυρή προσωπικότητα της Καρχηδόνιας βασίλισσας που επαναστατεί κατά του άνδρα – αδερφού της και τολμά μόνη της να ιδρύσει πόλη και να εξουσιάσει έναν ολόκληρο λαό. Κατορθώνει, συνεπώς, να αναλάβει ρόλους ανδρικούς δίχως να απεμπολήσει ωστόσο τη γυναικεία πλευρά της. Η υποταγή της στην ανδρική νόρμα εμφανίζεται στο έπος ως αποτέλεσμα άνωθεν επέμβασης, ωστόσο ο Βιργίλιος την απεικονίζει με τρόπους που επιτρέπουν στον αναγνώστη να τη δει άλλοτε ως διεκδικήτρια ισότητας και άλλοτε ως απερίφραστα αρνητική απέναντι στις ανδροκεντρικές παραδοχές του επικού αφηγήματος.
description: The Aeneid, following the literary conventions of the genre where it belongs, largely and ostensibly reflects, either implicitly or explicitly, the patriarchal conceptions of ancient times. According to these, the roles of the two sexes are “natural” and predetermined, since the man constitutes a synonym for determination, dynamism and faith in duty, whereas the woman is tied to emotion and impulse. Although Aeneas, as the protagonist of the epic poem, stands faithful to the dictates of patriarchy, the figure of Dido enters the epic poem and questions the dominant ideology, on which the Roman imperial edifice is built. More specifically, ever since her first appearance in the Aeneid world, the powerful personality of the Carthage Queen, who rebels against her husband-brother, becomes evident and she dares to establish, as well as rule, an entire people on her own. She therefore manages to take on masculine roles, without disposing of her feminine side nonetheless. Her submission to the male norm appears in the epic poem as a result of higher intervention, though Virgil depicts her in ways which allow the reader to perceive her sometime as a defender of equality and sometime as bluntly adverse towards the male-centered consensus of the epic narrative.
Statistics of random voltage fluctuations and the low-density residual conductivity of graphene
Creators: name: Galitski, Victor
name: Adam, Shaffique
name: Sarma, S. Das
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider a graphene sheet in the vicinity of a substrate, which contains charged impurities. An analytic expression for the probability distribution function of voltage fluctuations due to the charged impurities is derived. The distribution function is shown to be non-Gaussian. The voltage fluctuations lead to the appearance of randomly distributed density inhomogeneities in the graphene plane. We argue that these disorder-induced density fluctuations produce a finite conductivity even at a zero gate voltage in accordance with recent experimental observations. We estimate the width of the minimal conductivity plateau and the typical size of the electron and hole puddles. The existence of inhomogeneous random puddles of electrons and holes should be a generic feature of all graphene layers at low gate voltages due to the invariable presence of charged impurities in the substrate.
description: Revised version, accepted for publication in Phys. Rev. B
Baryon Dynamics, Dark Matter Substructure, and Galaxies
Creators: name: Weinberg, David H.
name: Colombi, Stephane
name: Davé, Romeel
name: Katz, Neal
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: By comparing a collisionless cosmological N-body simulation (DM) to an SPH simulation with the same initial conditions, we investigate the correspondence between the dark matter subhalos produced by collisionless dynamics and the galaxies produced by dissipative gas dynamics in a dark matter background. When galaxies in the SPH simulation become satellites in larger groups, they retain local dark matter concentrations (SPH subhalos) whose mass is typically five times their baryonic mass. The more massive subhalos of the SPH simulation have corresponding subhalos of similar mass and position in the DM simulation; at lower masses, there is fairly good correspondence, but some DM subhalos are in different spatial positions and some suffer tidal stripping or disruption. The halo occupation statistics of DM subhalos -- the mean number of subhalos, pairs, and triples as a function of host halo mass -- are very similar to those of SPH subhalos and SPH galaxies. Gravity of the dissipative baryon component amplifies the density contrast of subhalos in the SPH simulation, making them more resistant to tidal disruption. Relative to SPH galaxies and SPH subhalos, the DM subhalo population is depleted in the densest regions of the most massive halos. The good agreement of halo occupation statistics between the DM subhalo and SPH galaxy populations leads to good agreement of their two-point correlation functions and higher order moments on large scales. The depletion of DM subhalos in dense regions depresses their clustering at R<1 Mpc/h. In these simulations, the "conversation" between dark matter and baryons is mostly one-way, with dark matter dynamics telling galaxies where to form and how to cluster, but the "back talk" of the baryons influences small scale clustering by enhancing the survival of substructure in the densest environments.
description: 32 pages including 16 figs. Submitted to ApJ. PDF file with higher quality versions of Figs 2 and 3 available at http://www.astronomy.ohio-state.edu/~dhw/Preprints/subhalo.pdf
Manipulation of Kondo Effect via Two-Dimensional Molecular Self-Assembly
Creators: name: Iancu, Violeta
name: Deshpande, Aparna
name: Hla*, Saw-Wai
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report manipulation of a Kondo resonance originated from the spin-electron interactions between a two-dimensional molecular assembly of TBrPP-Co molecules and a Cu(111) surface at 4.6 K using a low temperature scanning tunneling microscope. By manipulating nearest-neighbor molecules with a scanning tunneling microscope tip we are able to tune the spin-electron coupling of the center molecule inside a small hexagonal molecular assembly in a controlled step-by-step manner. The Kondo temperature increases from 105 to 170 K with a decreasing the number of nearest neighbor molecules from six to zero. This Kondo temperature variation is originated from the scattering of surface electrons by the molecules located at the edges of the molecular layer, which reduces spin-electron coupling strength for the molecules inside the layer. Investigations on different molecular arrangements indicate that the observed Kondo resonance is independent on the molecular lattice.
description: Phys. Rev. Lett. in press
The forgotten channels: charged Higgs boson decays to a $W^\pm$ and a non-SM-like Higgs boson
Creators: name: Bahl, Henning
name: Stefaniak, Tim
name: Wittbrodt, Jonas
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: The presence of charged Higgs bosons is a generic prediction of multiplet extensions of the Standard Model (SM) Higgs sector. Focusing on the Two-Higgs-Doublet-Model (2HDM), we discuss the charged Higgs boson collider phenomenology in the theoretically and experimentally viable parameter space. While almost all existing experimental searches at the LHC target the fermionic decays of charged Higgs bosons, we point out that the bosonic decay channels -- especially the decay into a non-SM-like Higgs boson and a $W$ boson -- often dominate over the fermionic channels. Moreover, we revisit two genuine BSM effects on the properties of the discovered Higgs boson -- the charged Higgs contribution to the diphoton rate and the Higgs decay to two light Higgs bosons -- and their implication for the charged Higgs boson phenomenology. As main result of the present paper, we propose five two-dimensional benchmark scenarios with distinct phenomenological features in order to facilitate the design of dedicated LHC searches for charged Higgs bosons decaying into a $W$ boson and a light, non-SM-like Higgs boson.
description: 57 pages, 26 figures, data tables for cross sections and benchmark scenarios included as ancillary files, updated text to match journal version; fixed issue in calculation of HpmWmp XS, conclusions unchanged
Solitary Confinement and Prisoners' Human Rights
Creators: name: Walsh, Tamara
name: Blaber, Helen
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 489999
subject: Other law and legal studies not elsewhere classified

description: Whilst the term ‘solitary confinement’ does not appear in Australian legislation, prisoners in all states and territories can be placed in isolation for periods of time that exceed United Nations standards. Solitary confinement is an embedded strategy used to manage ‘difficult’ prisoners, but legal and psychological research indicates that placing a person in solitary confinement, even for a short period of time, can result in serious psychological harm. Most prisoners will be released, and if they are disturbed and distressed, or so institutionalised that they are unable to reintegrate into society, they may pose an increased risk to members of the community. Courts in Canada, New Zealand, and Europe have condemned the use of solitary confinement on human rights grounds, particularly the right to humane treatment when deprived of liberty, the right to life, and the right to be free from cruel, inhuman and degrading treatment. This paper considers how the Human Rights Act 2019 (Qld) could be used to challenge decisions to place prisoners in solitary confinement in Queensland. It is argued that since there are a number of less restrictive alternatives available, placement in solitary confinement may not be a reasonable or justifiable limitation on prisoners’ human rights.
Σχολιασμένη μετάφραση του λιμπρέτου Ο φτωχός ναύτης του Ζαν Κοκτώ
Creators: name: Παπαδάκη, Καλλιόπη Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Σχολιασμένη μετάφραση
Ο φτωχός ναύτης
Ζαν Κοκτώ
Annotated translation
Le pauvre matelot
Jean Cocteau

description: Η παρούσα εργασία αποτελεί τη σχολιασμένη μετάφραση του λιμπρέτου Le pauvre matelot του Jean Cocteau, από τα γαλλικά στα ελληνικά. Το κείμενο τοποθετείται στην καλλιτεχνική θεατρική παραγωγή του συγγραφέα του και στο πολιτισμικό συγκείμενο της εποχής του ενώ αναδεικνύεται η σχέση του με την επιρροή που άσκησε η αρχαία ελληνική τραγωδία στον Cocteau. Ακολουθεί το πρωτότυπο κείμενο και το μετάφρασμα και τέλος σχολιάζονται οι μεταφραστικές πρακτικές που ακολουθήθηκαν και οι λύσεις που επιλέχθηκαν για τα μεταφραστικά προβλήματα που προέκυψαν.
description: The present thesis is an annotated translation, from French to Greek of the libretto Le pauvre matelot by Jean Cocteau. The text is placed among the artistic theatrical production of the writer as well as in the cultural context of its era, while emphasis is put on its affinities with the influence that the ancient Greek tragedy exerted on Cocteau. The original text and its translation follow and the thesis concludes with the annotations regarding the translation practices and methods which helped resolve problems during the procedure of translation.
Transitive factorizations of free partially commutative monoids and Lie algebras
Creators: name: Luque, Jean-Gabriel
name: Duchamp, Gérard Henry Edmond
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Symbolic Computation (cs.SC)
subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Let $\M(A,θ)$ be a free partially commutative monoid. We give here a necessary and sufficient condition on a subalphabet $B\subset A$ such that the right factor of a bisection $\M(A,θ)=\M(B,θ\_B).T$ be also partially commutative free. This extends strictly the (classical) elimination theory on partial commutations and allows to construct new factorizations of $\M(A,θ)$ and associated bases of $L\_K(A,θ)$.
Study of empathy in Greek dental postgraduate students
Creators: name: Τζιάλλα, Νιόβη Πάρις
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Κλίμακα ενσυναίσθησης Jefferson
Κλίμακα ενσυναίσθησης Toronto Composite
Ψυχομετρικές ιδιότητες
Jefferson Scale of Empathy
Toronto Composite Empathy Scale
Psychometrics

description: The aims of this study are to examine the psychometric properties of the Greek version of the Jefferson Scale of Empathy for Health Professionals (JSE-HP) and to measure the empathy levels of postgraduate students. The JSE-HP scale was translated to Greek language using the back translation method. The questionnaire was given to 111 postgraduate students. The reliability of the Greek version of Jefferson Scale was tested by evaluating the Cronbach’s alpha (a) coefficient. Comparisons between groups of postgraduate dental students were performed with the Mann-Whitney test or the Kruskal-Wallis test. Response rate was 100%. The internal consistency of the questionnaire was considered satisfactory (Cronbach's alphas: 0.76, DI: 0.33). Pearson’s r for the test–retest evidenced good reliability (r= 0.77, p<0.001). No statistically significant differences in empathy scores were found between the postgraduate students of pediatric dentistry and the other dental specialties.The Greek version of the JSE-HP shows good psychometric properties. There was no statistically significant difference in empathy among the postgraduate students of dental specialties.
description: Οι στόχοι αυτής της μελέτης είναι να εξεταστούν οι ψυχομετρικές ιδιότητες της ελληνικής έκδοσης του Jefferson Scale of Empathy for Health Professionals (JSE-HP) και να μετρηθούν τα επίπεδα ενσυναίσθησης των μεταπτυχιακών φοιτητών. Η κλίμακα JSE-HP μεταφράστηκε στην ελληνική γλώσσα και το ερωτηματολόγιο δόθηκε σε 111 μεταπτυχιακούς φοιτητές. Ο έλεγχος της αξιοπιστίας της ελληνικής έκδοσης του Jefferson Scale πραγματοποιήθηκε με την αξιολόγηση του συντελεστή alpha (a) του Cronbach. Έγιναν συγκρίσεις μεταξύ ομάδων μεταπτυχιακών φοιτητών οδοντιατρικής με το τεστ Mann-Whitney ή το τεστ Kruskal-Wallis. Το ποσοστό απόκρισης ήταν 100%. Η εσωτερική συνοχή του ερωτηματολογίου κρίθηκε ικανοποιητική (Cronbach's alpha: 0,76, DI: 0,33). Το Pearson's r για τη δοκιμή σε δεύτερο χρόνο έδειξε καλή αξιοπιστία (r = 0,77, p <0,001). Δεν βρέθηκαν στατιστικά σημαντικές διαφορές στις βαθμολογίες ενσυναίσθησης μεταξύ των μεταπτυχιακών φοιτητών της παιδοδοντιατρικής και των άλλων οδοντιατρικών ειδικοτήτων. Η ελληνική έκδοση του JSE-HP δείχνει καλές ψυχομετρικές ιδιότητες. Δεν υπήρχε στατιστικά σημαντική διαφορά στην ενσυναίσθηση μεταξύ των μεταπτυχιακών φοιτητών οδοντιατρικών ειδικοτήτων.
Automatic API Usage Scenario Documentation from Technical Q&A Sites
Creators: name: Uddin, Gias
name: Khomh, Foutse
name: Roy, Chanchal K
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The online technical Q&A site Stack Overflow (SO) is popular among developers to support their coding and diverse development needs. To address shortcomings in API official documentation resources, several research has thus focused on augmenting official API documentation with insights (e.g., code examples) from SO. The techniques propose to add code examples/insights about APIs into its official documentation. Reviews are opinionated sentences with positive/negative sentiments. However, we are aware of no previous research that attempts to automatically produce API documentation from SO by considering both API code examples and reviews. In this paper, we present two novel algorithms that can be used to automatically produce API documentation from SO by combining code examples and reviews towards those examples. The first algorithm is called statistical documentation, which shows the distribution of positivity and negativity around the code examples of an API using different metrics (e.g., star ratings). The second algorithm is called concept-based documentation, which clusters similar and conceptually relevant usage scenarios. An API usage scenario contains a code example, a textual description of the underlying task addressed by the code example, and the reviews (i.e., opinions with positive and negative sentiments) from other developers towards the code example. We deployed the algorithms in Opiner, a web-based platform to aggregate information about APIs from online forums. We evaluated the algorithms by mining all Java JSON-based posts in SO and by conducting three user studies based on produced documentation from the posts.
Μελέτη των τυπικών και άτυπων σχέσεων καθώς και των ροών πληροφορίας στο δίκτυο των στελεχών τμήματος του οργανισμού της Πολεμικής Αεροπορίας με σκοπό τη βελτίωση των δεξιοτήτων και του τρόπου διοίκησης
Creators: name: Παπαποστόλου, Μανώλης Κωνσταντίνου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Ανάλυση Κοινωνικών Δικτύων
Θεωρία Γραφημάτων
Μέθοδοι Ανάλυσης
Social network analysis
Graph theory
Methodology

description: Οι κοινωνικές επιστήμες επικεντρώνονται στη δομή των ανθρώπινων ομάδων, των κοινοτήτων, των οργανώσεων, των αγορών, της κοινωνίας ή του παγκόσμιου συστήματος. Η κοινωνική δομή αντιπροσωπεύεται ως ένα δίκτυο κοινωνικών δεσμών. Η Ανάλυση Κοινωνικών Δικτύων είναι η χαρτογράφηση και αποτίμηση των σχέσεων και των ροών που αναπτύσσονται μεταξύ των ανθρώπων, των ομάδων, των υπολογιστών, των ιστοσελίδων και άλλων οντοτήτων επεξεργασίας της γνώσης. Η θεωρία της Ανάλυσης Κοινωνικών Δικτύων προσφέρει τη μεθοδολογία για την ανάλυση των κοινωνικών σχέσεων και τη δυνατότητα να κατανοήσουμε τα κοινωνικά δίκτυα και να τα ερμηνεύσουμε. Στη παρούσα εργασία θα παρουσιαστούν οι πιο σημαντικές μέθοδοι μελέτης των κοινωνικών δικτύων, βάση των οποίων θα μελετηθεί και θα αναλυθεί το δίκτυο συνεργασίας το οποίο αποτελείται από το προσωπικό, επιχειρησιακό και τεχνικό, της Μοίρας Κατευθυνόμενων Βλημάτων, αναπόσπαστο κομμάτι της Πολεμικής Αεροπορίας στον τομέα της αεράμυνας, δίνοντας έμφαση στην μαθηματική ερμηνεία και οπτική παρουσίαση των one-mode, απλών και κατευθυνόμενων δικτύων που κατασκευάζονται με χρήση μιας σειράς ερωτηματολογίων. Η παρούσα διπλωματική έχει ως στόχο να αποτελέσει ένα εγχειρίδιο για τη βελτίωση του τρόπου διοίκησης και ελέγχου της Μοίρας και γενικότερα της Πολεμικής Αεροπορίας.
description: The social sciences focus on structure of human groups, communities, organizations, markets, society, or the world system. We conceptualize social structure as a network of social ties. Social Network Analysis is the mapping and evaluation of relationships and flows that develop between people, groups, computers, web sites, and other knowledge-processing entities. Social network analysis offers the methodology to analyze social relations, how to conceptualize social networks and how to interpret them. In this thesis, we present the most important methods of social networks analysis, which will be used to study and analyze the collaboration network consisting of the personnel, operational and technical, of the Guided Missile Squadron, integral part of the Greek Air Force in the field of air defense, emphasizing in the mathematical interpretation and visual presentation of the simple and directed networks that is created through questionnaires. This thesis is intended to be a manual for improving the method of command and control of the Squadron and Air Force in general.
Exact solutions for scalars and spinors on quantized (Euclidean) $AdS_2$ and the correspondence principle
Creators: name: Pinzul, A.
name: Stern, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain the exact solutions to the field equations for massless scalar and massless spinor fields on quantized two-dimensional anti-de Sitter space. We then apply the AdS/CFT correspondence principle to get exact answers for the two point correlation functions of the associated operators on the boundary. The results support the conclusion that conformal symmetry on the boundary is not spoiled by quantization of the bulk. Moreover, quantization of the bulk has no effect on the spinor two-point correlation function, while it induces an overall re-scaling in the scalar two-point correlation function.
description: 34 pages
Bulk perturbations of N=2 branes
Creators: name: Gaberdiel, Matthias R.
name: Lawrence, Albion
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The evolution of supersymmetric A-type D-branes under the bulk renormalization group flow between two different N=2 minimal models is studied. Using the Landau-Ginzburg description we show that a specific set of branes decouples from the infrared theory, and we make detailed predictions for the behavior of the remaining branes. The Landau-Ginzburg picture is then checked against a direct conformal field theory analysis. In particular we construct a natural index pairing which is preserved by the RG flow, and show that the branes that decouple have vanishing index with the surviving branes.
description: 35 pages (30 pages plus title and references), 8 figures
Estratégias de avaliação de impactos em serviços de informação
Creators: name: Gaspar Pinto, Leonor
name: Ochoa, Paula
Publisher: name: Cadernos BAD
Year: 2021

description: O tema da avaliação de impactos em Serviços de informação tem vindo a ganhar relevância desde o aparecimento, em 2014, da norma internacional sobre Métodos e procedimentos para avaliar o impacto das bibliotecas - ISO 16394. A norma sugere como metodologias preferenciais as qualitativas, dando destaque à convergência de métricas nas áreas da avaliação do impacto nos indivíduos, impacto na instituição de tutela ou na comunidade e impacto social e definindo três métodos para a recolha de evidências: inferição, solicitação e observação. Tendo por base trabalho desenvolvido no âmbito da investigação sobre avaliação em Ciência da Informação, apresentam-se as estratégias seguidas no setor de Informação-Documentação, contemplando uma trajetória iniciada com abordagens experimentais até à estratégia atual de envolver os cidadãos e as cidadãs nas várias fases do processo avaliativo.
description: Cadernos BAD, N.º 1-2 (2020)
X-ray selected starbursts in the GOODS-North
Creators: name: Georgakakis, A.
name: Rowan-Robinson, M.
name: Babbedge, T. S. R.
name: Georgantopoulos, I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate claims that recent deep X-ray surveys are detecting starbursts at cosmologically interesting redshifts (z=0-1). We combine X-ray data from the 2Ms CDF-North with multi-wavelength observations from GOODS to build the SEDs (UV, optical, IR) of X-ray sources in this field. These are fit with model templates providing an estimate of the total IR luminosity of each source. We then exploit the correlation between IR and X-ray luminosities for star-forming galaxies, established in the local Universe, to select sources that are dominated by star-formation. This approach is efficient in discriminating normal galaxies from AGN over a wide range of SFRs. The resulting sample consists of 45 X-ray selected star-forming systems at a median redshift z~0.5, the majority of which (60%) are LIRGs or ULIRGs. This sample is least affected by incompleteness and AGN contamination and is well suited for cosmological studies. We quantify the X-ray evolution of these sources by constructing their differential, dN/dS, and comparing them with evolving luminosity function models. The results are consistent with luminosity evolution of the form (1+z)^{p} with p~2.4. This is similar to the evolution rate of star-forming galaxies selected at other wavelengths, suggesting that the deep X-ray surveys, are indeed finding the starburst galaxy population that drives the rapid evolution of the global SFR density in the range z~0-1. Our analysis also reveals a separate population of IR-faint X-ray sources. These include old galaxies but also systems that are X-ray luminous for their stellar mass compared to local E/S0. We argue that these may be post-starbursts that will, over time, become fainter at X-rays and will eventually evolve into early-type systems (e.g. E/S0).
description: Accepted for publication in MNRAS
Thinking outloud: the problem-solving language of preschoolers with and without language impairment
Creators: name: Sturn, Paula A.
Publisher: name: University of British Columbia
Year: 2008

description: Eighteen preschoolers were asked to build bridges out of diverse construction material, two children working in parallel. Their utterances were coded for task relevance, function(regulative vs. affective) and addressee (private vs. social). The language of six children with specific language impairment was compared to that of six age-matched, and six language-matched peers. Correlations between dependency, impulsivity and efficiency and language use were also investigated. 39% of the speech was narrowly task relevant and regulative. Similar proportions of private and social speech occurred but problem-solving language was more likely to be private (61 %). Group differences were found only in amount of speech. These findings indicate first that the correlation between function and addressee, while consonant with traditional accounts, is far from perfect: researchers interested in the intellectual functions of language should study both social and private speech. Second, language impaired children use speech for problem-solving to an age appropriate degree, though formulation problems may still reduce the efficacy of such use. A positive correlation was found between impulsivity and task irrelevant speech, while dependency was negatively correlated with the total number of utterances, the number of broadly task relevant utterances, and the number of social utterances. Correlations between efficiency and language use revealed a split between children with normal langauge and children with specific language impairment. Efficient children with normal language spoke more and devoted more of their speech to narrowly task relevant utterances. Efficient children with specific language impairment spoke less but also devoted a larger proportion of their speech to narrowly task relevant speech. These findings indicate that the intellectual function of language is used productively by efficient children regardless of language status but efficient children with specific langauge impairment rely on it less.
D3.2 Publication of first version of service catalogues to vertical consumers
Creators: name: Tranoris, Christos
name: Corici Marius-Iulian
name: Briedigkeit Thomas
name: Chowdhury Ananya
name: Szabó Zsolt
name: Muschamp, Paul
name: Carlos Parada,
name: José Bonnet,
name: Carapinha, Jorge
name: Jose Ordonez-Lucena,
name: Fernández, Sonia
name: Gonzales, Andres
name: Grønsund, Pål
name: Xie, Min
name: Rodrigues Joao A.,
name: Ghosh Tirthankar
name: Carmen Guerrero,
name: Gallego, Adrián
name: Artur Hecker,
name: Xiao, Xun
name: Abboud, Osama
Publisher: name: Zenodo
Year: 2019

description: This deliverable contains details of implementation towards the first operational readiness of 5G-VINNI facilities for provisioning network slices as services for industry verticals. The deliverable contains details about how each facility: i) supports the different envisaged 5G-VINNI roles, ii) what are the services and entry points for the supported roles, iii) how these roles access the facilities services and catalogues, iv) how each facility supports the Lifecycle Management of Network Slice Services, v) what are the interfaces exposed to be used by the service orchestration layer, vi) how each facility will support day-to-day operations and issue management for verticals and vii) which are the initial internal tests planned by each facility to verify service operations.
Truncated stellar discs in the near infrared. II. Statistical properties and interpretation
Creators: name: Florido, E.
name: Battaner, E.
name: Guijarro, A.
name: Garzon, F.
name: Castillo-Morales, A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The results obtained in paper I are used to study possible relationships between the truncation radius of stellar discs in the NIR and structural parameters of the galaxies. The NIR truncation radius is larger for brighter galaxies, being proportional to $V_m^c$ with $c \approx 3/2$, and with $V_m$ being the asymptotic rotation velocity at large radii (when the rotation curve becomes flat), and is lower for higher wavelengths. When it is normalized to the scalelength, the truncation is an increasing function of the central surface brightness and is lower for late type galaxies, although these correlations are weaker. These relations are in agreement with the scenario of magnetically driven truncations.
description: 6 pages. Published in Astronomy & Astrophysics
Solitary Confinement and Prisoners' Human Rights
Creators: name: Walsh, Tamara
name: Blaber, Helen
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 489999
subject: Other law and legal studies not elsewhere classified

description: Whilst the term ‘solitary confinement’ does not appear in Australian legislation, prisoners in all states and territories can be placed in isolation for periods of time that exceed United Nations standards. Solitary confinement is an embedded strategy used to manage ‘difficult’ prisoners, but legal and psychological research indicates that placing a person in solitary confinement, even for a short period of time, can result in serious psychological harm. Most prisoners will be released, and if they are disturbed and distressed, or so institutionalised that they are unable to reintegrate into society, they may pose an increased risk to members of the community. Courts in Canada, New Zealand, and Europe have condemned the use of solitary confinement on human rights grounds, particularly the right to humane treatment when deprived of liberty, the right to life, and the right to be free from cruel, inhuman and degrading treatment. This paper considers how the Human Rights Act 2019 (Qld) could be used to challenge decisions to place prisoners in solitary confinement in Queensland. It is argued that since there are a number of less restrictive alternatives available, placement in solitary confinement may not be a reasonable or justifiable limitation on prisoners’ human rights.
NICMOS Status
Creators: name: de Jong, Roelof S.
name: Arribas, Santiago
name: Barker, Elizabeth
name: Bergeron, Louis E.
name: Bohlin, Ralph C.
name: Calzetti, Daniela
name: Dashevsky, Ilana
name: Dickinson, Mark
name: Koekemoer, Anton M.
name: Malhotra, Sangeeta
name: Mobasher, Bahram
name: Noll, Keith S.
name: Riess, Adam G.
name: Schultz, Alfred B.
name: Sosey, Megan L.
name: Wheeler, Thomas
name: Wiklind, Tommy
name: Xu, Chun
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We provide an overview of the most important calibration aspects of the NICMOS instrument on board of HST. We describe the performance of the instrument after the installation of the NICMOS Cooling System, and show that the behavior of the instrument has become very stable and predictable. We detail the improvements made to the NICMOS pipeline and outline plans for future developments. The derivation of the absolute photometric zero-point calibration is described in detail. Finally, we describe and quantify a newly discovered count-rate dependent non-linearity in the NICMOS cameras. This new non-linearity is distinctly different from the total count dependent non-linearity that is well known for near-infrared detectors. We show that the non-linearity has a power law behavior, with pixels with high system, or vice versa, pixels with low count rate detecting slightly less than expected. The effect has a wavelength dependence with observations at the shortest wavelengths being the most affected (~0.05-0.1 mag per dex flux change at ~1 micron, 0.03 mag per dex at 1.6 micron).
description: 12 pages, 10 figures. More information on the newly discovered NICMOS count-rate dependent non-linearity and how to correct for it can be found at http://www.stsci.edu/hst/nicmos/performance/anomalies/nonlinearity.html
Joint framework with deep feature distillation and adaptive focal loss for weakly supervised audio tagging and acoustic event detection
Creators: name: Liang, Yunhao
name: Long, Yanhua
name: Li, Yijie
name: Liang, Jiaen
name: Wang, Yuping
Publisher: name: arXiv
Year: 2021
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: A good joint training framework is very helpful to improve the performances of weakly supervised audio tagging (AT) and acoustic event detection (AED) simultaneously. In this study, we propose three methods to improve the best teacher-student framework in the IEEE AASP Challenge on Detection and Classification of Acoustic Scenes and Events (DCASE) 2019 Task 4 for both audio tagging and acoustic events detection tasks. A frame-level target-events based deep feature distillation is first proposed, which aims to leverage the potential of limited strong-labeled data in weakly supervised framework to learn better intermediate feature maps. Then, we propose an adaptive focal loss and two-stage training strategy to enable an effective and more accurate model training, where the contribution of hard and easy acoustic events to the total cost function can be automatically adjusted. Furthermore, an event-specific post processing is designed to improve the prediction of target event time-stamps. Our experiments are performed on the public DCASE 2019 Task 4 dataset, results show that our approach achieves competitive performances in both AT (81.2\% F1-score) and AED (49.8\% F1-score) tasks.
description: Updated, please refer to "https://sciencedirect.53yu.com/science/article/abs/pii/S105120042200063X"
Bounds on ordered codes and orthogonal arrays
Creators: name: Barg, Alexander
name: Purkayastha, Punarbasu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We derive new estimates of the size of codes and orthogonal arrays in the ordered Hamming space (the Niederreiter-Rosenbloom-Tsfasman space). We also show that the eigenvalues of the ordered Hamming scheme, the association scheme that describes the combinatorics of the space, are given by the multivariable Krawtchouk polynomials, and establish some of their properties.
description: Final version, minor corrections
Exploring the QCD phase diagram with fluctuations
Creators: name: Koch, Volker
name: Vovchenko, Volodymyr
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on recent progress concerning theoretical description of event-by-event fluctuations in heavy-ion collisions. Specifically we discuss a new Cooper-Frye particlization routine -- the subensemble sampler -- which is designed to incorporate effects of global conservation laws, thermal smearing and resonance decays on fluctuation measurements in various rapidity acceptances. First applications of the method to heavy-ion collisions at the LHC energies are presented and further necessary steps to analyze fluctuations from RHIC beam energy scan are outlined.
description: 13 pages, 3 figures. Prepared for the 60th anniversary of the Cracow School of Theoretical Physics. Contains overview of the material presented in arXiv:2012.09954
Spontaneous emergence of spatial patterns ina a predator-prey model
Creators: name: Charret, I. C.
name: Carneiro, M. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: We present studies for an individual based model of three interacting populations whose individuals are mobile in a 2D-lattice. We focus on the pattern formation in the spatial distributions of the populations. Also relevant is the relationship between pattern formation and features of the populations' time series. Our model displays travelling waves solutions, clustering and uniform distributions, all related to the parameters values. We also observed that the regeneration rate, the parameter associated to the primary level of trophic chain, the plants, regulated the presence of predators, as well as the type of spatial configuration.
description: 17 pages and 15 figures
Ruling out real-valued standard formalism of quantum theory
Creators: name: Chen, Ming-Cheng
name: Wang, Can
name: Liu, Feng-Ming
name: Wang, Jian-Wen
name: Ying, Chong
name: Shang, Zhong-Xia
name: Wu, Yulin
name: Gong, Ming
name: Deng, Hui
name: Liang, Futian
name: Zhang, Qiang
name: Peng, Cheng-Zhi
name: Zhu, Xiaobo
name: Cabello, Adan
name: Lu, Chao-Yang
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Standard quantum theory was formulated with complex-valued Schrodinger equations, wave functions, operators, and Hilbert spaces. Previous work attempted to simulate quantum systems using only real numbers by exploiting an enlarged Hilbert space. A fundamental question arises: are complex numbers really necessary in the standard formalism of quantum theory? To answer this question, a quantum game has been developed to distinguish standard quantum theory from its real-number analog by revealing a contradiction in the maximum game scores between a high-fidelity multi-qubit quantum experiment and players using only real-number quantum theory. Here, using superconducting qubits, we faithfully experimentally implement the quantum game based on entanglement swapping with a state-of-the-art fidelity of 0.952(1), which beats the real-number bound of 7.66 by 43 standard deviations. Our results disprove the real-number formulation and establish the indispensable role of complex numbers in the standard quantum theory.
description: submitted on March 2021
Renormalizability of a generalized gauge fixing interpolating among the Coulomb, Landau and maximal Abelian gauges
Creators: name: Capri, M. A. L.
name: Sobreiro, R. F.
name: Sorella, S. P.
name: Thibes, R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A detailed discussion of the renormalization properties of a class of gauges which interpolates among the Landau, Coulomb and Maximal Abelian gauges is provided in the framework of the algebraic renormalization in Euclidean Yang-Mills theories in four dimensions.
description: 15 pages; Final version to appear in Annals of Physics
Energy levels of a two-dimensional hydrogen atom with spin-orbit Rashba interaction
Creators: name: Grimaldi, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electronic bound states around charged impurities in two-dimensional systems with structural inversion asymmetry can be described in terms of a two-dimensional hydrogen atom in the presence of a Rashba spin-orbit interaction. Here, the energy levels of the bound electron are evaluated numerically as a function of the spin-orbit interaction, and analytic expressions for the weak and strong spin-orbit coupling limits are compared with the numerical results. It is found that, besides the level splitting due to the lack of inversion symmetry, the energy levels are lowered for sufficiently strong spin-orbit coupling, indicating that the electron gets more tightly bound to the ion as the spin-orbit interaction increases. Similarities and differences with respect to the two-dimensional Fröhlich polaron with Rashba coupling are discussed.
description: 4 pages, 2 figures; Brief Report
Climate Change and the Constitution: The Case for the Ecological Limitation
Creators: name: Avgoustinos, Costa
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 480702
subject: Constitutional law
classificationCode: 480203
subject: Environmental law

description: In this article, I explore the doctrinal argument for establishing a new implication in Australian constitutional law. The ‘ecological limitation’ is a proposed constitutional implication restraining some forms of Commonwealth or state legislative and executive action worsening climate change. The argument for its derivation is based on the premise that such action poses a threat to the long-term structural integrity, if not existence, of the Australian constitutional system. When domestic government action threatens this system, even in a partial or incremental manner, the High Court may derive implications from the Commonwealth Constitution to restrain such action. This is the reasoning underpinning the Court’s establishment of implied limitations such as the Melbourne Corporation and political communication limitations. In order to help assess the doctrinal merits of the ecological limitation, I examine a hypothetical matter centring on whether Queensland government approval of a coal mine being pursued by Adani Mining Pty Ltd breaches this limitation.
Covariance Decomposition as a Universal Limit on Correlations in Networks
Creators: name: Beigi, Salman
name: Renou, Marc-Olivier
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Parties connected to independent sources through a network can generate correlations among themselves. Notably, the space of feasible correlations for a given network, depends on the physical nature of the sources and the measurements performed by the parties. In particular, quantum sources give access to nonlocal correlations that cannot be generated classically. In this paper, we derive a universal limit on correlations in networks in terms of their covariance matrix. We show that in a network satisfying a certain condition, the covariance matrix of any feasible correlation can be decomposed as a summation of positive semidefinite matrices each of whose terms corresponds to a source in the network. Our result is universal in the sense that it holds in any physical theory of correlation in networks, including the classical, quantum and all generalized probabilistic theories.
description: 22 pages