cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Polylogarithm Identities in a Conformal Field Theory in Three Dimensions
Creators: name: Sachdev, Subir
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The $N=\infty$ vector $O(N)$ model is a solvable, interacting field theory in three dimensions ($D$). In a recent paper with A. Chubukov and J. Ye~\cite{self}, we have computed a universal number, $\tilde{c}$, characterizing the size dependence of the free energy at the conformally-invariant critical point of this theory. The result~\cite{self} for $\tilde{c}$ can be expressed in terms of polylogarithms. Here, we use non-trivial polylogarithm identities to show that $\tilde{c}/N = 4/5$, a rational number; this result is curiously parallel to recent work on dilogarithm identities in $D=2$ conformal theories. The amplitude of the stress-stress correlator of this theory, $c$ (which is the analog of the central charge), is determined to be $c/N=3/4$, also rational. Unitary conformal theories in $D=2$ always have $c = \tilde{c}$; thus such a result is clearly not valid in $D=3$.
description: LATEX, 7 pages
Induced quantum magnetism in CEF singlet ground state models: Thermodynamics and excitations
Creators: name: Thalmeier, Peter
name: Akbari, Alireza
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a comparative investigation of singlet ground state induced magnetism for singlet, doublet and triplet excited CEF states of non-Kramers f-electrons relevant primarily for Pr- and U- based compounds. This type of magnetic order is of intrinsic quantum nature because it requires the superposition of singlet ground state with excited states due to non-diagonal matrix elements of the effective intersite exchange to generate local moments. In contrast to conventional magnets the local moments and their ordering appear simultaneously at the transition temperature. It is finite only if the control parameter proportional to the ratio of exchange strength to level splitting exceeds a critical value marking the quantum critical point of the models. We determine the dependence of transition temperature, saturation moment, renormalised level splitting, specific heat jumps and low-temperature susceptibility as function of control parameter. Furthermore the temperature dependence of these quantities is calculated for control parameters above and below the quantum critical point and the distinction to conventional magnetism is discussed. In addition we investigate the dynamical properties of the three models, deriving the magnetic exciton dispersion and their critical behaviour. In particular the conditions for true and arrested soft-mode behaviour at the ordering wave vector are identified.
description: 22 pages, 10 figures
MODULARITÀ DELLA MENTE E PRATICHE DIDATTICHE. A COLLOQUIO CON EMILIO GARCÍA GARCÍA
Creators: name: TORRESAN, PAOLO
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: Emilio García García; modularità della mente; didattica

description: Emilio García García, psicologo dell'Università Complutense, si occupa da anni di raccordare gli esiti di ricerche che provengono da ambiti disciplinari contigui: psicologia cognitiva, neuropsicologia, psicolinguistica e neurolinguistica. In questa intervista, concessaci nell'aprile del 2006, mette a fuoco alcuni spunti interessanti che tali ricerche offrono per una pedagogia a misura di apprendente. Ne esce un quadro stimolante, ricco di riferimenti, prezioso. Si apre una finestra su un paesaggio, quello della mente, che riceve una luce nuova: la luce della modularità. L'intervista è preceduta da una introduzione in cui Torresan presenta una cornice teorica che orienta il lettore, consentendogli di collocare i riferimenti di García alle teorie modulari in un'ampia prospettiva epistemologica. Nella conclusione, lo stesso Torresan tira le fila delle ripercussioni didattiche, chiarendo quale profilo di insegnante una didattica sensibile alle neuroscienze possa richiedere. L'articolo si chiude con una bibliografia in cui sono elencate le opere più significative degli autori citati.
description: Studi di glottodidattica, V. 3, N. 1 (2009)
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 0982
Creators: name: de la Côte d'Or, Archives départementales
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0982, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 0982, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Tau-functions beyond the group elements
Creators: name: Mironov, A.
name: Mishnyakov, V.
name: Morozov, A.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Matrix elements in different representations are connected by quadratic relations. If matrix elements are those of a $\textit{group element}$, i.e. satisfying the property $Δ(X) = X\otimes X$, then their generating functions obey bilinear Hirota equations and hence are named $τ$-functions. However, dealing with group elements is not always easy, especially for non-commutative algebras of functions, and this slows down the development of $τ$-function theory and the study of integrability properties of non-perturbative functional integrals. A simple way out is to use arbitrary elements of the universal enveloping algebra, and not just the group elements. Then the Hirota equations appear to interrelate a whole system of generating functions, which one may call $\textit{generalized}$ $τ$-functions. It was recently demonstrated that this idea can be applicable even to a somewhat sophisticated case of the quantum toroidal algebra. We consider a number of simpler examples, including ordinary and quantum groups, to explain how the method works and what kind of solutions one can obtain.
description: 16 pages
Detectability vs. time and costs in pooled DNA extraction of cutaneous swabs: a study on the amphibian chytrid fungi: Supplementary material
Creators: name: Sabino-Pinto, Joana
name: E. Tobias Krause
name: Bletz, Molly C.
name: Martel, An
name: Pasmans, Frank
name: Steinfartz, Sebastian
name: Vences, Miguel
Publisher: name: Brill Online
Year: 2018
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: Epidemiology relies on understanding the distribution of pathogens which often can be detected through DNA-based techniques, such as quantitative Polymerase Chain Reaction (qPCR). Typically, the DNA of each individual sample is separately extracted and undergoes qPCR analysis. However, when performing field surveys and long-term monitoring, a large fraction of the samples is generally expected to be negative, especially in geographical areas still considered free of the pathogen. If pathogen detection within a population - rather than determining its individual prevalence - is the focus, work load and monetary costs can be reduced by pooling samples for DNA extraction. We test and refine a user-friendly technique where skin swabs can be pooled during DNA extraction to detect the amphibian chytrid fungi, Batrachochytrium dendrobatidis and B. salamandrivorans (Bsal). We extracted pools with different numbers of samples (from one to four swabs), without increasing reaction volumes, and each pool had one sample inoculated with a predetermined zoospore amount. Pool size did not reduce the ability to detect the two fungi, except if inoculated with extremely low zoospore amounts (one zoospore). We confirm that pooled DNA extraction of cutaneous swabs can substantially reduce processing time and costs without minimizing detection sensitivity. This is of relevance especially for the new emerging pathogen Bsal, for which pooled DNA extraction had so far not been tested and massive monitoring efforts in putatively unaffected regions are underway.
L'INSEGNAMENTO E L'APPRENDIMNTO DEL LESSICO IN AMBIENTE CLIL. Il CLIL E L'APPROCCIO LESSICALE. ALCUNE RIFLESSIONI
Creators: name: CARDONA, MARIO
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: approccio lessicale; CLIL; competenza lessicale

description: L'uso della lingua veicolare e l'apprendimento delle materie curricolari non linguistiche attraverso la lingua straniera in ambiente CLIL implicano lo sviluppo nell'allievo di una articolata competenza lessicale. Oltre al lessico di frequenza egli deve infatti sviluppare un corpus lessicale idoneo a rappresentare l'oggetto di studio e un lessico microlinguistico specifico relativo alla materia di insegnamento. Tuttavia il lessico, la sua natura ed il suo insegnamento, non hanno ancora raggiunto nella didattica delle lingue (almeno nel panorama italiano) il dovuto riconoscimento; la ricerca scientifica, che pur in questi ultimi anni ha dedicato al lessico una rinnovata attenzione recuperando anni di silenzio, non ha portato sul piano didattico a particolari innovazioni e molto insegnamento rimane "grammaticocentrico". Il presente contributo descrive le principali caratteristiche della competenza lessicale ed introduce i fondamenti del Lexical Approach al fine di delineare quali possano essere le strategie che consentano da un lato una stabile memorizzazione delle unità lessicali e dall'altro di sviluppare nell'allievo la metacompetenza linguistica necessaria per affrontare i tasks proposti nelle attività CLIL.
description: Studi di glottodidattica, V. 2, N. 4 (2008)
Characteristics and energy dependence of recurrent galactic cosmic-ray flux depressions and of a Forbush decrease with LISA Pathfinder
Creators: name: Armano, M.
name: Audley, H.
name: Baird, J.
name: Bassan, M.
name: Benella, S.
name: Binetruy, P.
name: Born, M.
name: Bortoluzzi, D.
name: Cavalleri, A.
name: Cesarini, A.
name: Cruise, A. M.
name: Danzmann, K.
name: Silva, M. de Deus
name: Diepholz, I.
name: Dixon, G.
name: Dolesi, R.
name: Fabi, M.
name: Ferraioli, L.
name: Ferroni, V.
name: Finetti, N.
name: Fitzsimons, E. D.
name: Freschi, M.
name: Gesa, L.
name: Gibert, F.
name: Giardini, D.
name: Giusteri, R.
name: Grimani, C.
name: Grzymisch, J.
name: Harrison, I.
name: Heinzel, G.
name: Hewitson, M.
name: Hollington, D.
name: Hoyland, D.
name: Hueller, M.
name: Inchauspé, H.
name: Jennrich, O.
name: Jetzer, P.
name: Karnesis, N.
name: Kaune, B.
name: Korsakova, N.
name: Killow, C. J.
name: Laurenza, M.
name: Lobo, J. A.
name: Lloro, I.
name: Liu, L.
name: López-Zaragoza, J. P.
name: Maarschalkerweerd, R.
name: Mance, D.
name: Martín, V.
name: Martin-Polo, L.
name: Martino, J.
name: Martin-Porqueras, F.
name: Mateos, I.
name: McNamara, P. W.
name: Mendes, J.
name: Mendes, L.
name: Nofrarias, M.
name: Paczkowski, S.
name: Perreur-Lloyd, M.
name: Petiteau, A.
name: Pivato, P.
name: Plagnol, E.
name: Ramos-Castro, J.
name: Reiche, J.
name: Robertson, D. I.
name: Rivas, F.
name: Russano, G.
name: Sabbatini, F.
name: Slutsky, J.
name: Sopuerta, C. F.
name: Sumner, T.
name: Telloni, D.
name: Texier, D.
name: Thorpe, J. I.
name: Vetrugno, D.
name: Vitale, S.
name: Wanner, G.
name: Ward, H.
name: Wass, P.
name: Weber, W. J.
name: Wissel, L.
name: Wittchen, A.
name: Zambotti, A.
name: Zanoni, C.
name: Zweifel, P.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Space Physics (physics.space-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Galactic cosmic-ray (GCR) energy spectra observed in the inner heliosphere are modulated by the solar activity, the solar polarity and structures of solar and interplanetary origin. A high counting rate particle detector (PD) aboard LISA Pathfinder (LPF), meant for subsystems diagnostics, was devoted to the measurement of galactic cosmic-ray and solar energetic particle integral fluxes above 70 MeV n$^{-1}$ up to 6500 counts s$^{-1}$. PD data were gathered with a sampling time of 15 s. Characteristics and energy-dependence of GCR flux recurrent depressions and of a Forbush decrease dated August 2, 2016 are reported here. The capability of interplanetary missions, carrying PDs for instrument performance purposes, in monitoring the passage of interplanetary coronal mass ejections (ICMEs) is also discussed.
Combining TF-GridNet and Mixture Encoder for Continuous Speech Separation for Meeting Transcription
Creators: name: Vieting, Peter
name: Berger, Simon
name: von Neumann, Thilo
name: Boeddeker, Christoph
name: Schlüter, Ralf
name: Haeb-Umbach, Reinhold
Publisher: name: arXiv
Year: 2023
Subjects: subject: Audio and Speech Processing (eess.AS)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Sound (cs.SD)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Many real-life applications of automatic speech recognition (ASR) require processing of overlapped speech. A common method involves first separating the speech into overlap-free streams on which ASR is performed. Recently, TF-GridNet has shown impressive performance in speech separation in real reverberant conditions. Furthermore, a mixture encoder was proposed that leverages the mixed speech to mitigate the effect of separation artifacts. In this work, we extended the mixture encoder from a static two-speaker scenario to a natural meeting context featuring an arbitrary number of speakers and varying degrees of overlap. We further demonstrate its limits by the integration with separators of varying strength including TF-GridNet. Our experiments result in a new state-of-the-art performance on LibriCSS using a single microphone. They show that TF-GridNet largely closes the gap between previous methods and oracle separation independent of mixture encoding. We further investigate the remaining potential for improvement.
description: Presented at SLT 2024
Ground-State Phase Diagram of (1/2,1/2,1) Mixed Diamond Chains
Creators: name: Hida, Kazuo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The ground-state phases of mixed diamond chains with ($S, τ^{(1)}, τ^{(2)})=(1/2,1/2,1)$, where $S$ is the magnitude of vertex spins, and $τ^{(1)}$ and $τ^{(2)}$ are those of apical spins, are investigated. The two apical spins in each unit cell are coupled by an exchange coupling $λ$. The vertex spins are coupled with the top and bottom apical spins by exchange couplings $1+δ$ and $1-δ$, respectively. Although this model has an infinite number of local conservation laws for $δ=0$, they are lost for finite $δ$. The ground-state phase diagram is determined using the numerical exact diagonalization and DMRG method in addition to the analytical approximations in various limiting cases. The phase diagram consists of a nonmagnetic phase and several kinds of ferrimagnetic phases. We find two different ferrimagnetic phases without spontaneous translational symmetry breakdown. It is also found that the quantized ferrimagnetic phases with large spatial periodicities present for $δ=0$ are easily destroyed by small $δ$ and replaced by a partial ferrimagnetic phase. The nonmagnetic phase is considered to be a gapless Tomonaga-Luttinger liquid phase based on the recently extended Lieb-Schultz-Mattis theorem to the site-reflection invariant spin chains and numerical diagonalization results.
description: 8 pages, 10 figures
title: Transcriptions du Y//3 - Livre rouge , page #062
Creators: name: Brochard, Pierre
name: Claustre, Julie
name: Regazzi, Hugo
name: Claustre, Julie
name: Brochard, Pierre
name: Regazzi, Hugo
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Châtelet de Paris
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: http://www.idref.fr/032506511/id

description: Transcriptions de certaines pages du Y//3 - Livre Rouge, Châtelet de Paris, Y//1-Y//6/6. Livres de couleur (1223-1604)
Les images liées sont indiquées par le champ Source.

Les transcriptions sont dans deux formats : Txt et PageXml.

Liste des abréviations

App(b)eillees = appareillées
Bouch'r = boucher
Com'e = comme
Laut' = l'autre
Daut' = d'autre
Par' = Paris
Com'andem's = commandemens
Cestass' = c'est assavoir
Envir' = environ
App(b)tient = appartient
Ass' = assavoir
Ch'un = chascun
Oucas = ou cas
Enioint = enjoint
T'spas = trespas
Entiere = entière
Aleurs = à leurs

Les apostrophes représentent les tildes et '(b)' signifie que le jambage de la lettre précédente est barré.
description: Source: https://www.siv.archives-nationales.culture.gouv.fr/siv/media/FRAN_IR_056373/c-2xp1c58jd-1w19uv1g8sus6/FRAN_0053_01062_L
description: Source: https://www.nakala.fr/10.34847/nkl.e169xqy0
description: Relation: https://lamop.hypotheses.org/
description: Bibliographic citation: Hugo Regazzi, Pierre Brochard, Julie Claustre - Transcriptions du Y//3 - Livre Rouge du Châtelet de Paris, page #01062
description: Transcriptions du Y//3 - Livre Rouge page #062 - Format Text
Quantum Algorithm for Radiative Transfer Equation
Creators: name: Igarashi, Asuka
name: Kadowaki, Tadashi
name: Kawabata, Shiro
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The radiation transfer equation is widely used for simulating such as heat transfer in engineering, diffuse optical tomography in healthcare, and radiation hydrodynamics in astrophysics. By combining the lattice Boltzmann method, we propose a quantum algorithm for radiative transfer. This algorithm encompasses all the essential physical processes of radiative transfer: absorption, scattering, and emission. Although a sufficient number of measurements are required to precisely estimate the quantum state, and the initial encoding of the quantum state remains a challenging problem, our quantum algorithm exponentially accelerates radiative transfer calculations compared to classical algorithms. In order to verify the quantum algorithm, we perform quantum circuit simulation using IBM Qiskit Aer and find good agreement between our numerical result and the exact solution. The algorithm opens new application of fault-tolerant quantum computers for plasma engineering, telecommunications, nuclear fusion technology, healthcare and astrophysics.
description: 9 pages, 8 figures
Como Tratar la Diabetes Tipo 2
Creators: name: Adheer Saxsena
Publisher: name: figshare
Year: 2018
Subjects: subject: 111702 Aged Health Care
subject: FOS: Health sciences
subject: 110703 Autoimmunity
subject: FOS: Clinical medicine
subject: Diseases
subject: Health Care
subject: 111710 Health Counselling

description: This is just a test description. The real content will be uploaded soon on this site. Keep coming back for the same.
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Convergence of simple random walks on random discrete trees to Brownian motion on the continuum random tree
Creators: name: Croydon, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K37, 60G99, 60J15, 60J80, 60K35

description: In this article it is shown that the Brownian motion on the continuum random tree is the scaling limit of the simple random walks on any family of discrete $n$-vertex ordered graph trees whose search-depth functions converge to the Brownian excursion as $n\to\infty$. We prove both a quenched version (for typical realisations of the trees) and an annealed version (averaged over all realisations of the trees) of our main result. The assumptions of the article cover the important example of simple random walks on the trees generated by the Galton-Watson branching process, conditioned on the total population size.
Beam Operation for Particle Physics and Photon Science with Pulse-to-Pulse Modulation at KEK injector LINAC
Creators: name: Furukawa, Kazuro
name: Satoh, Masanori
name: group, Injector LINAC
Publisher: name: arXiv
Year: 2023
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: The electron and positron accelerator complex at KEK offers unique experimental opportunities in the fields of elementary particle physics with SuperKEKB collider and photon science with two light sources. In order to maximize the experimental performances at those facilities the injector LINAC employs pulse-to-pulse modulation at 50 Hz, injecting beams with diverse properties. The event-based control system effectively manages different beam configurations. This injection scheme was initially designed 15 years ago and has been in full operation since 2019. Over the years, quite a few enhancements have been implemented. As the event-based controls are tightly coupled with microwave systems, machine protection systems and so on, their modifications require meticulous planning. However, the diverse requirements from particle physics and photon science, stemming from the distinct nature of those experiments, often necessitate patient negotiation to meet the demands of both fields. This presentation discusses those operational aspects of the multidisciplinary facility.
description: 5 figures, LaTeX, a contribution to ICALEPCS2023, Cape Town, South Africa, TUPDP046
THE FOREIGN LANGUAGE IN THE CLIL LESSON: PROBLEMS AND IMPLICATIONS
Creators: name: COONAN, CARMEL MARY
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: CLIL lesson; foreign languages

description: CLIL constitutes a new learning environment as well as a new teaching environment. As such therefore it represents a new research ‘space’ that can be investigated from a variety of perspectives. In this paper the focus of the research is that of language – the foreign language in the CLIL lesson. The reason for focus lies in the promise that CLIL makes - namely that the foreign language competence of the CLIL students will grow through the learning of the content. Research by Swain and colleagues (1985) has shown however that this is not an automatic process, especially as far as concerns oral productive competence. The present paper focuses precisely on this aspect through the quantitative and qualitative analysis of oral data collected in CLIL lessons from five lessons in four Italian high schools. Results show that greater care needs to be made in organizing tasks in the CLIL lesson that are more conducive to richer oral production on the part of the pupils.
description: Studi di glottodidattica, V. 2, N. 4 (2008)
Role of switching-on and -off effects in the vacuum instability
Creators: name: Adorno, T. C.
name: Ferreira, R.
name: Gavrilov, S. P.
name: Gitman, D. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find exact differential mean numbers of fermions and bosons created from the vacuum due to a composite electric field of special configuration. This configuration imitates a finite switching-on and -off regime and consists of fields that switch-on exponentially from the infinitely remote past, remains constant during a certain interval $T$ and switch-off exponentially to the infinitely remote future. We show that calculations in the slowly varying field approximation are completely predictable in the framework of a locally constant field approximation. Beyond the slowly varying field approximation, we study effects of fast switching-on and -off in a number of cases when the size of the dimensionless parameter $\sqrt{eE}T$ is either close or exceeds the threshold value that determines the transition from a regime sensitive to on-off parameters to the slowly varying regime for which these effects are secondary.
description: 19 pages, 6 figures. Minor revisions and reference added; matches published version
Stochastic optimal control in Hilbert spaces: $C^{1,1}$ regularity of the value function and optimal synthesis via viscosity solutions
Creators: name: de Feo, Filippo
name: Święch, Andrzej
name: Wessels, Lukas
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 93E20, 49L25, 49L12, 49K45, 60H15, 49L20, 49N35, 35R15, 35K57, 34K50

description: We study optimal control problems governed by abstract infinite dimensional stochastic differential equations using the dynamic programming approach. In the first part, we prove Lipschitz continuity, semiconcavity and semiconvexity of the value function under several sets of assumptions, and thus derive its $C^{1,1}$ regularity in the space variable. Based on this regularity result, we construct optimal feedback controls using the notion of the $B$-continuous viscosity solutions for the associated Hamilton--Jacobi--Bellman equation. This is done in the case when the noise coefficient is independent of the control variable. We also discuss applications of our results to optimal control problems governed by stochastic reaction-diffusion equations and, under economic motivations, stochastic delay differential equations.
description: Accepted for publication in Electron. J. Probab
TAKING THE MATTER TO TASK
Creators: name: COONAN, CARMEL MARY
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: Tasks in CLIL; Apprendimento linguistico

description: CLIL (Content and Language Integrated Learning), considerato un nuovo ambiente di apprendimento, pone delle sfide agli insegnanti nei loro sforzi di assicurare l’apprendimento duale che l’acronimo richiede, ossia che il contenuto non linguistico venga appreso attraverso la lingua straniera e la lingua straniera attraverso il contenuto, contemporaneamente. Quali procedure, strategie e tecniche considerare per garantire tale apprendimento? Nel presente articolo si esplora il contributo del concetto di ‘task’ alla questione CLIL facendo riferimento alla ricerca in corso nell’ambito specifico nonché a dei task proposti in moduli CLIL da parte di docenti che hanno avuto una formazione nella metodologia CLIL.
description: Studi di glottodidattica, V. 2, N. 4 (2008)
Non-Linear Cluster Lens Reconstruction
Creators: name: Kaiser, Nick
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We develop a method for general non-linear cluster lens reconstruction using the observable distortion of background galaxies. The distortion measures the combination $γ/(1-κ)$ of shear $γ$ and surface density $κ$. From this we obtain an expression for the gradient of $\log (1 - κ)$ in terms of directly measurable quantities. This allows one to reconstruct $1 - κ$ up to an arbitrary constant multiplier. Recent work has emphasised an ambiguity in the relation between the distortion and $γ/(1-κ)$. Here we show that the functional relation depends only on the parity of the images, so if one has data extending to large radii, and if the critical lines can be visually identified (as lines along which the distortion diverges), this ambiguity is resolved. Moreover, we show that for a generic 2-dimensional lens it is possible to locally determine the parity from the distortion. The arbitrary multiplier, which may in fact take a different value in each region bounded by the contour $κ= 1$, can be determined by requiring that the mean surface excess vanish at large radii and that the gradient of $κ$ should be continuous across $κ= 1$. We show how these ideas might be implemented to reconstruct the surface density, if necessary without use of the data in regions where determination of the parity is insecure, and we show how one can measure the mass contained within an aperture, again, if necessary, without using data within the aperture.
description: 6 pages, uuencoded compressed postscript, CITA-94-39
CONOSCENZA DELL'APPRENDIMENTO COOPERATIVO DA PARTE DEGLI INSEGNANTI CLIL
Creators: name: GUAZZIERI, ANNAVALERIA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: Cooperative learning; lingua veicolare; CLIL

description: The article explores the knowledge and use of Cooperative Learning on the part of twenty-five Italian CLIL teachers involved in a classroom observation based research project, 'Participation in CLIL', which was carried out in the Veneto region by the Regional Institute for Educational Research of the Veneto (IRRE del Veneto, now National Agency for the Promotion of School Autonomy) in collaboration with the PRIN Project run by the University of Ca' Foscari, under the supervision of Prof. Carmel Mary Coonan. The author is involved in the project both as the IRRE researcher and as a PhD student at the Department of Language Sciences of the University. The project aimed at sustaining teachers in responding efficiently to innovation, rethinking their teaching practices in order to develop more learning-conducive activities in their CLIL lessons. The author's focus is on cooperative/collaborative learning activities, and specifically on how the interaction among students affects their understanding of the content and their production in the foreign language.
description: Studi di glottodidattica, V. 2, N. 4 (2008)
Unconditional convergence of a fast two-level linearized algorithm for semilinear subdiffusion equations
Creators: name: Liao, Hong-lin
name: Yan, Yonggui
name: Zhang, Jiwei
Publisher: name: arXiv
Year: 2018
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M06, 35B65

description: A fast two-level linearized scheme with unequal time-steps is constructed and analyzed for an initial-boundary-value problem of semilinear subdiffusion equations. The two-level fast L1 formula of the Caputo derivative is derived based on the sum-of-exponentials technique. The resulting fast algorithm is computationally efficient in long-time simulations because it significantly reduces the computational cost $O(MN^2)$ and storage $O(MN)$ for the standard L1 formula to $O(MN\log N)$ and $O(M\log N)$, respectively, for $M$ grid points in space and $N$ levels in time. The nonuniform time mesh would be graded to handle the typical singularity of the solution near the time $t=0$, and Newton linearization is used to approximate the nonlinearity term. Our analysis relies on three tools: a new discrete fractional Grönwall inequality, a global consistency analysis and a discrete $H^2$ energy method. A sharp error estimate reflecting the regularity of solution is established without any restriction on the relative diameters of the temporal and spatial mesh sizes. Numerical examples are provided to demonstrate the effectiveness of our approach and the sharpness of error analysis.
description: 23 pages, 5 figures
Dynamical CP Violation in Composite Higgs Models
Creators: name: Hashimoto, S.
name: Inagaki, T.
name: Muta, T.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The dynamical origin of the CP violation in electroweak theory is investigated in composite Higgs models. The mechanism of the spontaneous CP violation proposed in other context by Dashen is adopted to construct simple models of the dynamical CP violation. Within the models the size of the neutron electric dipole moment is estimated and the constraint on the $\varepsilon$-parameter in K-meson decays is discussed.
description: 20 pages, 2 figures not included, uses LaTeX, HUPD-9220
IL RUOLO DEL 'SOSTEGNO' ALL'ESPOSIZIONE DI CONTENUTI STORICI IN LS
Creators: name: JAMET, MARIE-CHRISTINE
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: didattica della storia; lingua veicolare

description: In this paper, we have applied the concepts of Zone of Proximal Development described by Vygotsky and scaffolding, as defined by Bruner and his collaborators (1976) to observe what happens in two classrooms which are following the CLIL methodology where history is taught in French. In the two classes the same didactic technique of ' lezione partecipata frontale' is adopted. Thus, the difference between the two experiments is the age of the learners (high school and middle school), and therefore the degree of foreign language knowledge and cognitive abilities in historic discourse. We argue that the CLIL methodology is valid because it is situated inside the ZPD; we analyze the different operations involved in the scaffolding process with several examples that privilege the oral production competence. We discuss the validity of the model and make a proposal for modifying the model so that it fits a classroom situation better as well as collective teaching/learning - and not only for individual learning.
description: Studi di glottodidattica, V. 2, N. 4 (2008)
Non-Trivial Phase Structure of $ϕ^{4}$-Theory at Finite Temperature
Creators: name: Langfeld, K.
name: Smekal, L. v.
name: Reinhardt, H.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The effective potential for the local composite operator $ϕ^{2}(x)$ in $λϕ^{4}$-theory is investigated at finite temperature in an approach based on path-integral linearisation of the $ϕ^4 $-interaction. At zero temperature, the perturbative vacuum is unstable, because a non-trivial phase with a scalar condensate $\langle ϕ^{2} \rangle _{0}$ has lower effective action. Due to field renormalisation, $\langle λϕ^{2} \rangle _{0}$ is renormalisation group invariant and leads to the correct scale anomaly. At a critical temperature $T_{c}$ the non-perturbative phase becomes meta-stable implying a first order phase-transition to the perturbative phase. The ratio $\langleλϕ^{2} \rangle _{0} / T_{c}^{2} \approx 62$ turns out to be a universal constant.
description: 10 LaTex pages (2 figures available on request), UNITUE-THEP-5-1993
Catalogue of >55 MeV Wide-longitude Solar Proton Events Observed by SOHO, ACE, and the STEREOs at $\approx$1 AU during 2009-2016
Creators: name: Paassilta, Miikka
name: Papaioannou, Athanasios
name: Dresing, Nina
name: Vainio, Rami
name: Valtonen, Eino
name: Heber, Bernd
Publisher: name: arXiv
Year: 2018
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Based on energetic particle observations made at $\approx$1 AU, we present a catalogue of 46 wide-longitude (>45°) solar energetic particle (SEP) events detected at multiple locations during 2009-2016. The particle kinetic energies of interest were chosen as >55 MeV for protons and 0.18-0.31 MeV for electrons. We make use of proton data from the Solar and Heliospheric Observatory/Energetic and Relativistic Nuclei and Electron experiment (SOHO/ERNE) and the Solar Terrestrial Relations Observatory/High Energy Telescopes (STEREO/HET), together with electron data from the Advanced Composition Explorer/Electron, Proton, and Alpha Monitor (ACE/EPAM) and the STEREO/Solar Electron and Proton Telescopes (SEPT). We consider soft X-ray data from the Geostationary Operational Environmental Satellites (GOES) and coronal mass ejection (CME) observations made with the SOHO/Large Angle and Spectrometric Coronagraph (LASCO) and STEREO/Coronagraphs 1 and 2 (COR1, COR2) to establish the probable associations between SEP events and the related solar phenomena. Event onset times and peak intensities are determined; velocity dispersion analysis (VDA) and time-shifting analysis (TSA) are performed for protons; TSA is performed for electrons. In our event sample, there is a tendency for the highest peak intensities to occur when the observer is magnetically connected to solar regions west of the flare. Our estimates for the mean event width, derived as the standard deviation of a Gaussian curve modelling the SEP intensities (protons $\approx$44°, electrons $\approx$50°), largely agree with previous results for lower-energy SEPs. SEP release times with respect to event flares, as well as the event rise times, show no simple dependence on the observer's connection angle, suggesting that...
description: This is a pre-print of an article to be published in Solar Physics. The final authenticated version will be available online at: https://doi.org/10.1007/s11207-018-1284-7
Stability of homogeneous equilibria of the Hartree-Fock equation, for its equivalent formulation for random fields
Creators: name: Collot, Charles
name: Danesi, Elena
name: de Suzzoni, Anne-Sophie
name: Malézé, Cyril
Publisher: name: arXiv
Year: 2023
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q40, 35B35, 35B40

description: The Hartree-Fock equation admits homogeneous states that model infinitely many particles at equilibrium. We prove their asymptotic stability in large dimensions, under assumptions on the linearised operator. Perturbations are moreover showed to scatter to linear waves. We obtain this result for the equivalent formulation of the Hartree-Fock equation in the framework of random fields. The main novelty is to study the full Hartree-Fock equation, including for the first time the exchange term in the study of these stationary solutions.
description: 37 pages
Nonlinear aspects of stochastic particle acceleration
Creators: name: Lemoine, M.
name: Murase, K.
name: Rieger, F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In turbulent magnetized plasmas, charged particles can be accelerated to high energies through their interactions with the turbulent motions. As they do so, they draw energy from the turbulence, possibly up to the point where they start modifying the turbulent cascade. Stochastic acceleration then enters a nonlinear regime because turbulence damping back-reacts in turn on the acceleration process. This article develops a phenomenological model to examine this situation in detail and to explore its consequences for the particle and turbulent energy spectra. We determine a criterion that specifies the threshold of nonthermal particle energy density and the characteristic momentum beyond which back-reaction becomes effective. Once the back-reaction sets in, the turbulence cascade becomes damped below a length scale that keeps increasing in time. The accelerated particle momentum distribution develops a near power-law of the form ${\rm d}n/{\rm d}p\propto p^{-s}$ with $s\sim2$ beyond the momentum at which back-reaction first sets in. At very high energies, where the gyroradius of accelerated particles becomes comparable to the outer scale of the turbulence, the energy spectrum can display an even harder spectrum with $s\sim 1.3-1.5$ over a short segment. The low-energy part of the spectrum, below the critical momentum, is expected to be hard ($s\sim 1$ or harder), and shaped by any residual acceleration process in the damped region of the turbulence cascade. This characteristic broken power-law shape with $s\sim 2$ at high energies may find phenomenological applications in various high-energy astrophysical contexts.
description: v2: includes relevant missing references; 17 pages, 6 figures
DALLA TEORIA ALLA PRATICA DIDATTICA: UNA SPERIMENTAZIONE CLIL NELLA SCUOLA SECONDARIA DI I GRADO
Creators: name: LATELA, ANNALISA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: scuola secondaria; sperimentazione CLIL; pratica didattica

description: Il CLIL si è dimostrato negli ultimi anni un efficace strumento per potenziare l’apprendimento delle lingue e contemporaneamente attivare una più stimolante acquisizione dei contenuti, favorendo il superamento dei limiti dei programmi disciplinari tradizionali verso l’integrazione curricolare. Qualsiasi percorso CLIL, infatti, se opportunamente strutturato e progettato, oltre ad essere conforme alle linee programmatiche del POF d’Istituto, si integra perfettamente nella programmazione del Consiglio di Classe di qualsiasi scuola, come il presente contributo intende mostrare. L’intervento, frutto di una sperimentazione condotta in una scuola secondaria di primo grado, mira a suggerire strumenti, fornire indicazioni pratiche ed esempi significativi a chi voglia sperimentare unità o moduli CLIL nelle proprie classi e offrire spunti di riflessione sulle motivazioni alla base di questa scelta metodologica.
description: Studi di glottodidattica, V. 2, N. 4 (2008)
Momentum of an electromagnetic wave in dielectric media
Creators: name: Pfeifer, Robert N. C.
name: Nieminen, Timo A.
name: Heckenberg, Norman R.
name: Rubinsztein-Dunlop, Halina
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Almost a hundred years ago, two different expressions were proposed for the energy--momentum tensor of an electromagnetic wave in a dielectric. Minkowski's tensor predicted an increase in the linear momentum of the wave on entering a dielectric medium, whereas Abraham's tensor predicted its decrease. Theoretical arguments were advanced in favour of both sides, and experiments proved incapable of distinguishing between the two. Yet more forms were proposed, each with their advocates who considered the form that they were proposing to be the one true tensor. This paper reviews the debate and its eventual conclusion: that no electromagnetic wave energy--momentum tensor is complete on its own. When the appropriate accompanying energy--momentum tensor for the material medium is also considered, experimental predictions of all the various proposed tensors will always be the same, and the preferred form is therefore effectively a matter of personal choice.
description: 23 pages, 3 figures, RevTeX 4. Removed erroneous factor of mu/mu_0 from Eq.(44)
Interview Questions | Attitudes to Open Education Initiatives
Creators: name: Harold, Sinead
Publisher: name: figshare
Year: 2018
Subjects: subject: 130306 Educational Technology and Computing
subject: FOS: Educational sciences

description: This list contains the follow-up interview questions written for the study participants who completed the Attitudes to Open Educational Initiatives survey. These interview questions were developed based on the free-response answers given by early study participants.
Constraining screened fifth forces with the electron magnetic moment
Creators: name: Brax, Philippe
name: Davis, Anne-Christine
name: Elder, Benjamin
name: Wong, Leong Khim
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Chameleon and symmetron theories serve as archetypal models for how light scalar fields can couple to matter with gravitational strength or greater, yet evade the stringent constraints from classical tests of gravity on Earth and in the Solar System. In this work, we investigate how a precision measurement of the electron magnetic moment places meaningful constraints on both chameleons and symmetrons. Two effects are identified: First, virtual chameleons and symmetrons run in loops to generate quantum corrections to the intrinsic value of the magnetic moment; a common process widely considered in the literature for many scenarios beyond the Standard Model. A second effect, however, is unique to scalar fields that exhibit screening. A scalar bubblelike profile forms inside the experimental vacuum chamber and exerts a fifth force on the electron, leading to a systematic shift in the experimental measurement. In quantifying this latter effect, we present a novel approach that combines analytic arguments and a small number of numerical simulations to solve for the bubblelike profile quickly for a large range of model parameters. Taken together, both effects yield interesting constraints in complementary regions of parameter space. While the constraints we obtain for the chameleon are largely uncompetitive with those in the existing literature, this still represents the tightest constraint achievable yet from an experiment not originally designed to search for fifth forces. We break more ground with the symmetron, for which our results exclude a large and previously unexplored region of parameter space. Central to this achievement are the quantum correction terms, which are able to constrain symmetrons with masses in the range $μ\in [10^{-3.88},10^8]\,\text{eV}$, whereas other experiments have hitherto only been sensitive to 1 or 2 orders of magnitude at a time.
description: 18 pages + appendices, 12 figures. Abstract abridged for arXiv submission. v2: Minor typos corrected to match PRD version
AURO: Reinforcement Learning for Adaptive User Retention Optimization in Recommender Systems
Creators: name: Xue, Zhenghai
name: Cai, Qingpeng
name: Yang, Bin
name: Hu, Lantao
name: Jiang, Peng
name: Gai, Kun
name: An, Bo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The field of Reinforcement Learning (RL) has garnered increasing attention for its ability of optimizing user retention in recommender systems. A primary obstacle in this optimization process is the environment non-stationarity stemming from the continual and complex evolution of user behavior patterns over time, such as variations in interaction rates and retention propensities. These changes pose significant challenges to existing RL algorithms for recommendations, leading to issues with dynamics and reward distribution shifts. This paper introduces a novel approach called \textbf{A}daptive \textbf{U}ser \textbf{R}etention \textbf{O}ptimization (AURO) to address this challenge. To navigate the recommendation policy in non-stationary environments, AURO introduces an state abstraction module in the policy network. The module is trained with a new value-based loss function, aligning its output with the estimated performance of the current policy. As the policy performance of RL is sensitive to environment drifts, the loss function enables the state abstraction to be reflective of environment changes and notify the recommendation policy to adapt accordingly. Additionally, the non-stationarity of the environment introduces the problem of implicit cold start, where the recommendation policy continuously interacts with users displaying novel behavior patterns. AURO encourages exploration guarded by performance-based rejection sampling to maintain a stable recommendation quality in the cost-sensitive online environment. Extensive empirical analysis are conducted in a user retention simulator, the MovieLens dataset, and a live short-video recommendation platform, demonstrating AURO's superior performance against all evaluated baseline algorithms.
description: The Web Conference 2025 (Oral)