cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
LA FRASE SEMPLICE
Creators: name: Lovison, Donatella
Publisher: name: Italiano LinguaDue
Year: 2020

description: L’articolo presenta un approccio all’analisi e alla rappresentazione grafica della frase semplice secondo la teoria delle valenze del verbo. Facendo riferimento agli studi linguistici più aggiornati e proponendo metodi e riflessioni di autorevoli studiosi del modello valenziale stesso, nonché seguendo percorsi sperimentati in classe, l’intento principale è di offrire degli spunti per l’applicazione didattica del modello teorico. I percorsi di riflessione porteranno il lettore alla scoperta della valenza dei verbi, all’individuazione del nucleo della frase, mediante il riconoscimento e la definizione degli attanti e degli argomenti del verbo, e alla distinzione tra elementi nucleari ed extranucleari. Le esemplificazioni di rappresentazione grafica suggerite costituiscono uno strumento didatticamente utile per la visualizzazione, e quindi per una più efficace comprensione, della struttura della frase. The simple sentence The article presents an approach to simple sentence analysis and its graphic representation, according to the theory of valency verb patterns. Referring to linguistic studies and proposing some methods and reflections by eminent scholars, as well as direct experiences in the classroom, the main purpose is to offer some ideas for the application of the theoretical valency model in teaching practice. The reader will identify the valency of the verbs and the sentence nucleus, by recognizing and describing the actants, the arguments and by distinguishing between nuclear and extra-nuclear elements. The suggested graphic representations are useful teaching tools for visualization and therefore for a more effective understanding of sentence structure.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
COME SI INSEGNA L’ITALIANO ALLE UNIVERSITÀ IN POLONIA?
Creators: name: Kaliska, Marta
Publisher: name: Italiano LinguaDue
Year: 2020

description: Nel presente articolo vengono presentati i risultati della ricerca sul contenuto dei sillabi effettuata nel 2018 alle dieci più grandi università polacche rispetto al numero degli studenti (GUS, 2017). L’obiettivo principale è stato quello di delineare il profilo dell’insegnamento dell’italiano nel contesto universitario al livello della pianificazione e organizzazione della didattica. Il corpus dei documenti sottoposto all’analisi include sia i sillabi dei corsi organizzati nell’ambito dei lettorati di lingue che quelli dei corsi dedicati agli studenti di discipline filologico-linguistiche. Nella prima parte di questo contributo si illustrano concetti teorici e aspetti rilevanti per l’insegnamento della lingua italiana, come il quadro generale della didattica dell’italiano in Polonia, la definizione della metodologia d’insegnamento delle lingue straniere con una particolare attenzione alle specificità dell’approccio ‘post-metodo’, nonché la didattica delle lingue all’università, in Polonia. Nella seconda parte, dopo aver illustrato le caratteristiche e le sottocategorie del corpus, si passa all’analisi dei dati che permette di osservare tendenze dominanti e certe carenze nella pianificazione didattica, e ad una riflessione sulla qualità della metodologia d’insegnamento in questo contesto educativo. How is Italian taught at universities in Poland? The article presents the findings of the case study on Italian course syllabi carried out at the 10 biggest Polish universities in terms of number of students (GUS 2017). Its main aim was to establish the characteristics of Italian language teaching methodology within the Polish higher education system, mostly at organizational and planning levels. The corpus of documents analyzed included both general Italian course syllabi and those specific to philological/linguistic studies. In the first part of the paper, the most relevant theoretical issues are presented, such as Italian language teaching in Poland, teaching methodology definition with particular regard to a ‘post-method’ perspective, as well as foreign language teaching in higher education in Poland. In the second part, after providing the corpus traits and subcategories, the research findings are discussed. Their analysis allows us to observe dominant trends and certain shortcomings within teaching planning, which sparks reflection on the quality of teaching methodology.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
INTRODUZIONE
Creators: name: Duso, Elena Maria
Publisher: name: Italiano LinguaDue
Year: 2020

description: L’articolo introduce la raccolta dei contributi di un corso di approfondimento sulla grammatica valenziale tenutosi all’Università di Padova negli anni accademici 2017/18 e 2018/19, per insegnanti di ogni ordine e grado e studenti universitari. Dopo una sintetica presentazione di alcune problematiche relative all’insegnamento della grammatica nella scuola di oggi con particolare riferimento al territorio padovano, ci si sofferma sul modello valenziale, ripercorrendone la storia in Italia ed analizzandone la diffusione in una ventina di manuali scolastici in uso. Si riflette quindi sugli effetti positivi che la sua adozione può avere sull’apprendimento della lingua materna e si conclude con la presentazione del corso e dei saggi raccolti nel volume. “There’s grammar and grammar...”. Why a course on the valency model? The article introduces a collection of contributions from an in-depth course on Valency Grammar held at the University of Padua during 2017/18 and 2018/19, for teachers of all levels and university students. After a brief presentation of some issues related to the teaching of grammar in today's schools with particular reference to the territory of Padua, we focus on the valency model, retracing its history in Italy and analyzing the spread in about twenty school textbooks currently in use. It reflects on the positive effects that adoption can have on learning the mother tongue and concludes with a presentation of the course and collected essays.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
Smooth lattice general relativity, and SPH simulations of swimming linked bodies
Creators: name: Kajtar, Jules Balazs
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: In this thesis, two quite different bodies of work are presented. The first is the study of the smooth lattice approach to numerical relativity which has been developed by Brewin (1998a,b, 2002). The aim of the research was to further test the viability of the method. Previously, it had been used to model a Kasner cosmology and a Schwarzschild black hole. Both were shown to produce excellent results. In this thesis, the details and results for a long-term, stable integration of a (one-dimensional) symmetric gravitational collapse are given. In the second body of work, smoothed particle hydrodynamics (SPH) was used to model swimming linked bodies. These simulations are an attempt to model the motion of real swimming animals, such as fish or eels. The calculations were for three linked, rigid bodies in two-dimensions. However, the set of equations provided are easily generalised for more bodies, and for three dimensions. The results are shown for a range of body and fluid parameters. The common link between the two areas of research is that they are computational in nature. Both involve the study and development of specific numerical algorithms, and their application to particular problems. Whilst a significant amount of time was spent on developing the mathematical formulae, the vast majority was spent on the numerical implementation, i.e. writing and testing code, using both C and Fortran programming languages. The calculations were all done on a standard Apple eMac desktop computer. The thesis has been split into two parts to reflect that the two bodies of work are separate. In each part, the relevant mathematical and numerical details are described, and the associated results are presented.
One-stop strategy to search for long-duration gravitational-wave signals
Creators: name: Tenorio, Rodrigo
name: Mérou, Joan-René
name: Sintes, Alicia M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Blind continuous gravitational-wave (CWs) searches are a significant computational challenge due to their long duration and weak amplitude of the involved signals. To cope with such problem, the community has developed a variety of data-analysis strategies which are usually tailored to specific CW searches; this prevents their applicability across the nowadays broad landscape of potential CW source. Also, their sensitivity is typically hard to model, and thus usually requires a significant computing investment. We present fasttracks, a massively-parallel engine to evaluate detection statistics for generic CW signals using GPU computing. We demonstrate a significant increase in computational efficiency by parallelizing the brute-force evaluation of detection statistics without using any computational approximations. Also, we introduce a simple and scalable postprocessing which allows us to formulate a generic semianalytic sensitivity estimate algorithm. These proposals are tested in a minimal all-sky search in data from the third observing run of the LIGO-Virgo-KAGRA Collaboration. The strategies discussed here will become increasingly relevant in the coming years as long-duration signals become a standard observation of future ground-based and space-borne detectors.
description: 18 pages, 6 figures, matches published version
ACQUISIZIONE E USO DELL’ARTICOLO ITALIANO DA PARTE DI SINOFONI: UNO STUDIO DI CASO SULL’ESPRESSIONE DELLA DEFINITEZZA
Creators: name: Mammucari, Ilaria
name: Nuzzo, Elena
Publisher: name: Italiano LinguaDue
Year: 2020

description: Con questo studio di caso intendiamo contribuire alla ricerca sull’acquisizione dell’articolo in italiano L2 osservando come giovani apprendenti sinofoni con livelli diversi di competenza gestiscono le categorie di definitezza e indefinitezza nella lingua bersaglio. I risultati dell’analisi, condotta su produzioni orali elicitate mediante una storia per immagini, hanno in parte confermato quanto emerso in studi precedenti. Da un lato, infatti, si è confermata la difficoltà, soprattutto nelle fasi iniziali, di gestire l’espressione della definitezza mediante l’articolo; dall’altro si è osservata una tendenza piuttosto marcata a sostituire il determinativo con il dimostrativo. Quest’ultima tendenza potrebbe riflettere un transfer dalla L1, dal momento che il dimostrativo risulta essere il candidato favorito ad assumere il ruolo di marca di definitezza nel processo di grammaticalizzazione di questa categoria in corso nel cinese moderno standard. Acquisition and use of the Italian article by sinophones: a case study on the expression of definiteness This case study aims to contribute to the research on the acquisition of articles in L2 Italian. More specifically, we observe how young Chinese-speaking learners with different levels of competence deal with definiteness and indefiniteness in the target language. Data for analysis was elicited by means of a picture story. Our findings partly confirmed the results of previous studies. On the one hand, it was confirmed that learners, particularly at earlier stages, have difficulty in expressing definiteness through articles. On the other hand, a tendency to use demonstratives instead of definite articles was observed. This could be an effect of transfer from L1, where the demonstrative appears to be the favorite candidate for the role of definiteness marker in the process of grammaticalization of this category in modern standard Chinese.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
title: 02_1811
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Base processes in the ocean environment. An investigation through ‘sculptural assemblage’.
Creators: name: Murphy, Fiona
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: ‘Base processes’ is the central concept of this research. ‘Base processes’ is the term I coined to refer to underlying workings in the ocean environment that are expressed through movements, cycles and forces. The key finding in this overall research: As an artist, it is possible to visualize and perceive phenomena in the ocean environment as though seeing it for the first time, as an assemblage of ‘base processes’ that describe the underlying workings of nature. Further to this, during my field research I witnessed impacts of climate change. It is envisaged that climate change will increasingly degrade the ocean environment. This finding is demonstrated through my ‘sculptural assemblages’. I extend the parameters of sculptural ceramic practice. ‘Sculptural assemblage’ refers to my installation practice, that includes ceramics, mixed media, video and spatial concepts. This methodology offers the viewer a visual, physical, conceptual, and tactile experience. The three core areas in this research investigation are: sculptural form, material qualities and ‘climate change’ concepts. This is an art practice led research project. Exegesis documentation outlines field research investigations and studio explorations. Field research is my fundamental research methodology to investigate ‘base processes’. This approach offers: first–hand observation and knowledge, spatial perceptions, and close–up visualization of physical and intangible phenomena. My research focuses on underwater reefs, intertidal zones, icebergs and glacial environments. Ocean phenomena are mostly investigated through their movements rather than their stationary appearance. Changeable ocean processes and phenomena are observed, imaged and made concrete through ‘sculptural assemblages’. As part of research into ‘base processes’, I examine the interactions between water, earth, fire and air as foundational elements of life. This is interpreted through clay and glaze materials that are transformed through studio ‘making’ and firing processes into a tangible expression of ‘base processes’. My artworks celebrate the wonder of the ocean environment, but also draw attention to impacts from ocean acidification, coral bleaching and global warming and to the bio–diversity that may be lost. Transformational states represented through my sculptural forms imply natural processes that have gone awry due to climate change. My documentation references scientific data on climate change impacts. The two major ‘sculptural assemblages’ produced during this project are Reef Lab 2012 and Melt 2012. My artworks are visually–poetic expressions of ‘base processes’. ‘Other world’ is a term I use in my research to refer to unfamiliar, enigmatic phenomena that I experience in this world. This poetic concept is applied to these immersive sculptural installations.
L’AS-UNIT COME UNITÀ DI PRODUZIONE PER L’ITALIANO PARLATO IN L1 E L2. PROBLEMI DI APPLICAZIONE E POSSIBILI SOLUZIONI
Creators: name: Ferrari, Stefania
Publisher: name: Italiano LinguaDue
Year: 2020

description: L’identificazione di unità valide e affidabili per l’analisi è un passaggio essenziale per condurre analisi quantitative di dati sul parlato al fine di indagare dimensioni come complessità, accuratezza e fluidità o misurare la frequenza di caratteristiche specifiche del discorso o della grammatica. L’Analysis of Speech Unit (AS-unit), inizialmente proposta da Foster et al. (2000) per l’inglese, ha dimostrato di essere uno strumento utile: si basa su processi di pianificazione psicolinguistica ed è descritta ed esemplificata in dettaglio, il che contribuisce alla sua validità e affidabilità. Il presente articolo illustra l’applicazione di questa unità di produzione del parlato all’italiano L1 e L2. Dopo aver presentato l’unità AS e i suoi vantaggi, vengono discusse le questioni relative alla sua applicazione in generale e all’italiano in particolare. Sulla base di queste osservazioni, ne viene proposta una parziale ridefinizione. The AS-UNIT as a production unit for spoken L1 and L2 Italian. Application problems and possible solutions Identifying valid and reliable units for analysis is an essential step in conducting quantitative analyses of spoken data in order to investigate dimensions such as complexity, accuracy and fluency or to measure the frequency of specific features of discourse or grammar. The Analysis of Speech Unit (AS-unit), initially proposed by Foster et al. (2000) for English, has proven to be a useful tool: it is based on psycholinguistic planning processes and it is described and exemplified in detail, which contributes to its validity and reliability. The present paper illustrates the application of this unit of production to spoken L1 and L2 Italian. After presenting the AS-unit and its advantages, issues concerning its application in general and to Italian in particular are discussed. Based on these remarks, a partial redefinition is proposed.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
Innovation and organisation: towards an art of social system design
Creators: name: Graham, Bradley John
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: A new field of design activity is emerging, where the focus of designers is being directed towards seeking innovative resolutions to organisational problems that are beyond the reach of traditional fields of design. The objects of design are immaterial; they are the concepts and structures that shape and direct the complex social systems that we all inhabit. Design thinking, design in thought and language, is central to this new field, however there is yet to emerge a substantial and coherent body of research into the theoretical foundations and effective methodological frameworks as a basis for the ongoing development of this field of design practice. This thesis makes an argument for this new design, named here as social system design, the primary characteristic of which concerns relational invention of, and in, thought and language. Firstly, a perspective is developed on design that is sufficiently broad as to encompass immaterial invention and production. This perspective is brought together with a description of the distinctive and special characteristics of human, or social, systems in order to enable the key criteria for social system design to be outlined, if it is to be relevant to innovation, in and of, complex relational settings. The fundamental premise that this thesis examines is furnished by Richard Buchanan, who, in positioning design as a new ‘liberal art of technological culture’, argues that the discipline is a modern incarnation of rhetoric. This could be easily dismissed if Buchanan had in mind the degraded and fractured rhetoric received into modernity. However his argument gains solid footing as he looks to rhetoric in its ancient forms, when it was constituted as a dynamic art of relational inversion and judgement in idea and word concerning the best courses of social and civic action. Rhetoric plays a central part in developing the arguments for both theory and method for social system design in this thesis, therefore making a contribution towards consolidating this as a recognised and viable field of design research and practice.
INDAGINE SULLA VALIDITÀ DI UNA PROVA DI ASCOLTO CILS DI LIVELLO C1
Creators: name: Torresan, Paolo
Publisher: name: Italiano LinguaDue
Year: 2020

description: Il seguente articolo analizza una prova di ascolto di italiano LS di livello C1, apparsa nella sessione invernale 2016 della certificazione CILS (Università per Stranieri di Siena). L’analisi è condotta su più campioni, sia di apprendenti di italiano [di livello C1 (n=70) e di livello B1 (n=67)] che di nativi [liceali (n=88) ed esperti (n=62)]. L’esito della ricognizione attesta criticità di diverso genere. Investigation into the validity of a CILS level C1 listening test This paper deals with a test C1 level listening which appeared in the 2016 winter session of CILS Certificate (University for Foreigners, Siena). The study refers to different populations, including both students of Italian as a FL [C1 level (n=70) and B1 level (n=67)] and natives [students at secondary School (n=88); highly proficient natives (n=62)]. Our analysis detects different problems.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
Hydrodynamics and transport in the long-range-interacting $φ^4$ chain
Creators: name: Iubini, Stefano
name: Lepri, Stefano
name: Ruffo, Stefano
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present a simulation study of the one-dimensional $φ^4$ lattice theory with long-range interactions decaying as an inverse power $r^{-(1+σ)}$ of the intersite distance $r$, $σ>0$. We consider the cases of single and double-well local potentials with both attractive and repulsive couplings. The double-well, attractive case displays a phase transition for $01$ and anomalous for $0
description: Version with minor revisions, accepted for publication in JSTAT
L’ESTENSIONE DI SIGNIFICATO NELL’ITALIANO PARLATO DA UNA COMUNITÀ DI ITALIANI RESIDENTI A CITTÀ DEL MESSICO
Creators: name: Bertoni, Barbara
Publisher: name: Italiano LinguaDue
Year: 2020

description: Analizzerò secondo una prospettiva sociolinguistica variazionale l’italiano parlato da immigrati italiani di prima generazione residenti a Città del Messico. Il mio studio si focalizza sulle interferenze lessicali e in particolare sui lessemi italiani che subiscono un’estensione di significato. Questo fenomeno occorre quando un elemento della L1, che fonicamente assomiglia a un elemento della L2, a causa dell’influenza della L2, estende il suo campo semantico per assimilare quello dell’elemento della L2 a cui assomiglia. I dati sono stati ricavati da 12 intervistati stratificati in tre assi sociolinguistici: sesso, convivenza con messicani o ispanofoni, tempo di permanenza in Messico. Tutti gli intervistati sono immigrati di prima generazione, residenti a Città del Messico per periodi che vanno da quattro mesi a 35 anni, con un’età tra i 30 e i 79 anni e con un livello di studi alto. I metodi di raccolta dei dati sono stati un’intervista informale in italiano della durata di un’ora e venti domande aperte concernenti vocaboli italiani. I dati raccolti rivelano quanto segue: 1) le estensioni di significato occorrono principalmente con falsi amici parziali e falsi amici prossimi; 2) alcune estensioni di significato si sono fossilizzate nell’italiano parlato dalla comunità italiana residente a Città del Messico; 3) a causa del contatto con una lingua affine come lo spagnolo, si sta producendo una variazione nell’italiano parlato dagli immigrati italiani in Messico. Extension of meaning in the Italian spoken by a community of Italian residents in Mexico City The Italian spoken by first-generation Italian immigrants residing in Mexico City will be analyzed from a variational sociolinguistics perspective. The study focuses on lexical interferences, particularly on the extension of meaning of Italian lexemes. The extension of meaning occurs when an L1 element, which phonically resembles an L2 element, due to L2 influence, extends its semantic field to include that of the L2 element which it resembles. The data was obtained from 12 interviewees stratified on three sociolinguistic axes: sex, cohabitation with Mexicans or Spanish speakers, time in Mexico. All interviewees were first generation immigrants that resided in Mexico City for time spans ranging from four months to 35 years, aged between 30 and 79, with a high level of education. The data collection methods were hour-long informal interviews in Italian and twenty open questions concerning Italian vocabulary. The data analysis revealed the following: 1) the extension of meaning mainly occurred with partial false friends and close false friends; 2) some extensions of meaning were fossilized in the Italian spoken by the Italian community residing in Mexico City; 3) due to contact with a language of the same linguistic family, such as Spanish, variation occur in the Italian spoken by Italian immigrants in Mexico.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
An exploration of heterogeneity in ordered choice models with applications to health and health care
Creators: name: Weterings, Timothy Alan
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: This thesis considers a range of extensions through which heterogeneity can be included in ordered choice models, with the aim on increasing flexibility and ensuring models accurately represent the underlying data generating processes. In addition, this thesis includes discussion of variable choice in several highly relevant empirical applications including self-assessed health, tobacco consumption, and doctor utilisation. The thesis commences by offering a review of current techniques for allowing for heterogeneity. Each of the models discussed, as well as an extended model for unobserved heterogeneity, are estimated on data from the Household, Income and Labour Dynamics Survey of Australia. The second chapter investigates new extensions to unobserved threshold heterogeneity in a panel data context. The proposed model allows additional flexibility in the thresholds by permitting correlations across threshold components. The third chapter concludes analysis of self-assessed health with a full application of threshold heterogeneity. A new set of misreporting variables are considered as threshold covariates, and the model is specified to account for unobserved threshold and latent regression heterogeneity in a dynamic panel context. Chapter ef{ch:zigstop} considers another form of model flexibility, designed to account for excess observations in an outcome variable category. This is applied in a panel context to investigate issues including variable selection and unobserved heterogeneity. Chapter ef{ch:latentclass} examines latent class structure when incorporating heterogeneity more generally, allowing these classes to be ordered, and participation in each class to change over time. Each of these chapters contributes to the literature individually. However their joint contribution is to develop the quality of analysis of discrete, ordered variables in future academic research. The thesis concludes with a summary of findings, policy implications, and an outline of directions for future research.
A Detection of Red Noise in PSR J1824$-$2452A and Projections for PSR B1937+21 using NICER X-ray Timing Data
Creators: name: Hazboun, Jeffrey S.
name: Crump, Jack
name: Lommen, Andrea N.
name: Montano, Sergio
name: Berry, Samantha J. H.
name: Zeldes, Jesse
name: Teng, Elizabeth
name: Ray, Paul S.
name: Kerr, Matthew
name: Arzoumanian, Zaven
name: Bogdanov, Slavko
name: Deneva, Julia
name: Lewandowska, Natalia
name: Markwardt, Craig B.
name: Ransom, Scott
name: Enoto, Teruaki
name: Wood, Kent S.
name: Gendreau, Keith C.
name: Howe, David A.
name: Parthasarathy, Aditya
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We have used X-ray data from the Neutron Star Interior Composition Explorer (NICER) to search for long time-scale, correlated variations ("red noise") in the pulse times of arrival from the millisecond pulsars PSR J1824$-$2452A and PSR B1937+21. These data more closely track intrinsic noise because X-rays are unaffected by the radio-frequency dependent propagation effects of the interstellar medium. Our Bayesian search methodology yields strong evidence (natural log Bayes factor of $9.634 \pm 0.016$) for red noise in PSR J1824$-$2452A, but is inconclusive for PSR B1937+21. In the interest of future X-ray missions, we devise and implement a method to simulate longer and higher precision X-ray datasets to determine the timing baseline necessary to detect red noise. We find that the red noise in PSR B1937+21 can be reliably detected in a 5-year mission with a time-of-arrival (TOA) error of 2 microseconds and an observing cadence of 20 observations per month compared to the 5 microsecond TOA error and 11 observations per month that NICER currently achieves in PSR B1937+21. We investigate detecting red noise in PSR B1937+21 with other combinations of observing cadences and TOA errors. We also find that an injected stochastic gravitational wave background (GWB) with an amplitude of $A_{\rm GWB}=2\times10^{-15}$ and spectral index of $γ_{\rm GWB}=13/3$ can be detected in a pulsar with similar TOA precision to PSR B1937+21, but with no additional red noise, in a 10-year mission that observes the pulsar 15 times per month and has an average TOA error of 1 microsecond.
description: 21 pages, 13 figures
Ehrenfest dynamics with localized atomic-orbital basis sets within the projector augmented-wave method
Creators: name: Zobač, Vladimír
name: Kuisma, Mikael
name: Larsen, Ask Hjorth
name: Rossi, Tuomas
name: Susi, Toma
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Density functional theory with linear combination of atomic orbitals (LCAO) basis sets is useful for studying large atomic systems, especially when it comes to computationally highly demanding time-dependent dynamics. We have implemented the Ehrenfest molecular dynamics (ED) method with the approximate approach of Tomfohr and Sankey within the projector augmented-wave code GPAW. We apply this method to small molecules as well as larger periodic systems, and elucidate its limits, advantages, and disadvantages in comparison to the existing implementation of Ehrenfest dynamics with a real-space grid representation. For modest atomic velocities, LCAO-ED shows satisfactory accuracy at a much reduced computational cost. This method will be particularly useful for modeling ion irradiation processes that require large amounts of vacuum in the simulation cell.
LE FUNZIONI DEL CLITICO “NE” NELLE INTERLINGUE POSTBASICHE DI APPRENDENTI L’ITALIANO L2, A UN ANNO DI DISTANZA DALL’IMMERSIONE NEL CONTESTO ITALOFONO
Creators: name: Ballarin, Elena
name: Nitti, Paolo
Publisher: name: Italiano LinguaDue
Year: 2020

description: L’acquisizione del sistema pronominale dell’italiano da parte di apprendenti non nativi costituisce un elemento significativo sul piano della ricerca, vista la sostanziale carenza di letteratura scientifica a riguardo. Il contributo propone l’analisi di alcuni dati sulla presenza della proforma “ne”, in un campione di apprendenti stranieri, a un anno di distanza dall’esperienza di studio o di lavoro in Italia. I risultati della ricerca, condotta sulla base delle risposte a un questionario e della costruzione di un corpus testuale, ne confermano le sequenze di acquisizione. The functions of the “ne” clitic in post-basic interlanguages of Italian L2 learners one year after immersion in an italian-speaking context The acquisition of the pronominal system of Italian by non-native learners is a significant element in terms of research, given the substantial lack of scientific literature in this regard. The paper analyzes some data regarding the presence of the clitic “ne”, in a sample of foreign learners, one year after study or work experience in Italy. The results of the research, based on a questionnaire, confirm the acquisition sequences.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
Population Properties of Gravitational-Wave Neutron Star--Black Hole Mergers
Creators: name: Zhu, Jin-Ping
name: Wu, Shichao
name: Qin, Ying
name: Zhang, Bing
name: Gao, He
name: Cao, Zhoujian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Over the course of the third observing run of LIGO-Virgo-KAGRA Collaboration, several gravitational-wave (GW) neutron star--black hole (NSBH) candidates have been announced. By assuming these candidates are real signals and of astrophysical origins, we analyze the population properties of the mass and spin distributions for GW NSBH mergers. We find that the primary BH mass distribution of NSBH systems, whose shape is consistent with that inferred from the GW binary BH (BBH) primaries, can be well described as a power-law with an index of $α= 4.8^{+4.5}_{-2.8}$ plus a high-mass Gaussian component peaking at $\sim33^{+14}_{-9}\,M_\odot$. The NS mass spectrum could be shaped as a near flat distribution between $\sim1.0-2.1\,M_\odot$. The constrained NS maximum mass agrees with that inferred from NSs in our Galaxy. If GW190814 and GW200210 are NSBH mergers, the posterior results of the NS maximum mass would be always larger than $\sim2.5\,M_\odot$ and significantly deviate from that inferred in the Galactic NSs. The effective inspiral spin and effective precession spin of GW NSBH mergers are measured to potentially have near-zero distributions. The negligible spins for GW NSBH mergers imply that most events in the universe should be plunging events, which supports the standard isolated formation channel of NSBH binaries. More NSBH mergers to be discovered in the fourth observing run would help to more precisely model the population properties of cosmological NSBH mergers.
description: 14 pages, 5 figures, 3 tables, accepted for publication in ApJ
ITALOFONIE MIGRANTI NEL CORNO D’AFRICA: IMMAGINARI SOCIOLINGUISTICI METICCI
Creators: name: Revelli, Luisa
Publisher: name: Italiano LinguaDue
Year: 2020

description: Se il numero di cittadini italiani residenti in modo stabile nel Corno d’Africa è attualmente molto ridotto, esistono ancora oggi nelle aree delle ex colonie gruppi di parlanti che conoscono e utilizzano la lingua italiana: si tratta dei cosiddetti “meticci”, figli o discendenti dei coloni migrati dalla Penisola tra Otto- e Novecento. Collocati in una scomoda posizione intermedia tra la comunità degli italofoni e quella locale, i nati nelle famiglie italo-somale, italo-eritree e italo-etiopiche hanno tramandato di generazione in generazione un legame con la cultura italiana che ha trovato nella lingua e nell’onomastica personale i suoi più espliciti simboli di appartenenza. A partire da testimonianze (interviste, questionari, autobiografie, etnotesti) e osservazioni raccolte sul campo, il contributo si propone di analizzare comportamenti, scelte, atteggiamenti e rappresentazioni linguistiche maturate nel passato e nel presente all’interno dei contesti italo-africani per verificare se e in che termini sia possibile parlare di una comunità meticcia di parlanti italofoni. Migrant italophonies of the Horn of Africa: sociolinguistic imaginary crossbreeds Even if Italian citizens permanently residing in the Horn of Africa are limited, still today some Italian language speakers are present in ex-colonies. These people, commonly called “meticci” (person of “combined descent”, “half-caste”), are often colonists’ sons or descendants, migrated from Italy around 19-20th centuries. Italian-Somali, Italian-Eritrean and Italian-Ethiopian families, lying in a complicated, intermediate position between Italian-speaking and local communities, from generation to generation transmitted a bond with Italian culture, which belonging symbols predominantly consist in language and personal onomastics. From documentations (interviews, questionnaires, autobiographies, ethnotexts) and field observations, this paper aims to analyse behaviours, choices, attitudes and linguistic representations developed in the past and in the present in Italian-African contexts, in order to verify if, and in which terms, it can be possible to refer to a mixed community of Italian-speaking individuals.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
Phase shift in periodically driven non-equilibrium systems: Its identification and a bound
Creators: name: Degünther, Julius
name: Koyuk, Timur
name: Seifert, Udo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Time-dependently driven stochastic systems form a vast and manifold class of non-equilibrium systems used to model important applications on small length scales such as bit erasure protocols or microscopic heat engines. One property that unites all these quite different systems is some form of lag between the driving of the system and its response. For periodic steady states, we quantify this lag by introducing a generalized phase difference and prove a tight upper bound for it. In its most general version, this bound depends only on the relative speed of the driving.
Additional file 2 of Temporal trajectories of important diseases in the life course and premature mortality in the UK Biobank
Creators: name: Shang, Xianwen
name: Zhang, Xueli
name: Huang, Yu
name: Zhu, Zhuoting
name: Zhang, Xiayin
name: Liu, Shunming
name: Liu, Jiahao
name: Tang, Shulin
name: Wang, Wei
name: Yu, Honghua
name: Ge, Zongyuan
name: He, Mingguang
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 2: Figure S1. Proportional hazards assumption test for cardiometabolic disorders and incident mortality. Figure S2. Proportional hazards assumption test for cardiometabolic disorders and incident mortality. Figure S3. Proportional hazards assumption test for cancers and incident mortality. Figure S4. Proportional hazards assumption test for musculoskeletal disorders, digestive disorders and incident mortality. Figure S5. Proportional hazards assumption test for other diseases and incident mortality.
ITALIANI NELLE FIANDRE ORIENTALI: UNA PRIMA ESPLORAZIONE SOCIOLINGUISTICA
Creators: name: Badan, Linda
name: Lamote, Emilie
Publisher: name: Italiano LinguaDue
Year: 2020

description: L’articolo riporta una prima indagine esplorativa sulla situazione sociolinguistica degli italiani che vivono nelle Fiandre, in Belgio. In particolare, lo studio mira a indagare e confrontare l’atteggiamento nei confronti dell’italiano come lingua di origine e il suo legame con il senso di identità degli italiani di prima e seconda generazione che vivono nelle Fiandre orientali, in particolare nell’area del capoluogo di provincia, la città di Gent. Italians in East Flands: a first sociolinguistic exploration The paper is a first exploratory investigation of the sociolinguistic situation of Italians living in Flanders, Belgium. In particular, the study aims at investigating and comparing the attitude towards Italian as a heritage language and its link to the sense of identity of first and second generation Italians living in East Flanders, in particular in the area of the provincial capital, the city of Gent.
description: Italiano LinguaDue, V. 11 N. 2 (2019)
Quantum Cosmology in Coupled Brans-Dicke Gravity: A Noether Symmetry Analysis
Creators: name: Laya, Dipankar
name: Dutta, Sourav
name: Chakraborty, Subenoy
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The present work deals with a multi-field cosmological model in a spatially flat FLRW space-time geometry. The usual Brans-Dicke(BD) field and another scalar field are minimally coupled to gravity while they interact with each other through the Kinetic terms. {The main aim of the present work is to examine whether the model is compatible with cosmic observations. So cosmological solutions are obtained using symmetry analysis only.} By imposing Noether Symmetry to the Lagrangian of the system the potential of the scalar field as well as the coupling function has been determined. The classical solutions are determined after simplifying the Lagrangian using cyclic variables. Finally, Wheeler-DeWitt(WD) equation in quantum cosmology has been formulated and conserved momenta corresponding to Noether symmetry shows the periodic part of the wave function and it helps to have the complete integral for the wave function.
description: 14 pages, 4 figures
On some locally symmetric embedded spaces with non-negative scalar curvature and their characterization
Creators: name: Sherif, Abbas M
name: Dunsby, Peter K S
name: Goswami, Rituparno
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we perform a general study of properties of a class of locally symmetric embedded hypersurfaces in spacetimes admitting a $1+1+2$ spacetime decomposition. The hypersurfaces are given by specifying the form of the Ricci tensor with respect to the induced metric. These are slices of constant time in the spacetime. Firstly, the form of the Ricci tensor for general hypersurfaces is obtained and the conditions under which the general case reduces to those of constant time slices are specified. We provide a characterization of these hypersurfaces, with key physical quantities in the spacetime playing a role in specifying the local geometry of these hypersurfaces. Furthermore, we investigate the case where these hypersurfaces admit a Ricci soliton structure. The particular cases where the vector fields associated to the solitons are Killing or conformal Killing vector fields are analyzed. Finally, in the context of spacetimes with local rotational symmetry it is shown that, only spacetimes in this class with vanishing rotation and spatial twist can admit the hypersurface types considered, and that the hypersurfaces are necessarily flat. And if such hypersurface do admit a Ricci soliton structure, the soliton is steady, with the components of the soliton field being constants.
description: 27 pages, no figure, few typos corrected, results unchanged, Accepted for publication in IJGMMP
Quantum Delocalization Enables Water Dissociation on Ru(0001)
Creators: name: Cao, Yu
name: Wang, Jiantao
name: Liu, Mingfeng
name: Liu, Yan
name: Ma, Hui
name: Franchini, Cesare
name: Sun, Yan
name: Kresse, Georg
name: Chen, Xing-Qiu
name: Liu, Peitao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We revisit the long-standing question of whether water molecules dissociate on the Ru(0001) surface through nanosecond-scale path-integral molecular dynamics simulations on a sizable supercell. This is made possible through the development of an efficient and reliable machine-learning potential with near first-principles accuracy, overcoming the limitations of previous ab initio studies. We show that the quantum delocalization associated with nuclear quantum effects enables rapid and frequent proton transfers between water molecules, thereby facilitating the water dissociation on Ru(0001). This work provides the direct theoretical evidence of water dissociation on Ru(0001), resolving the enduring issue in surface sciences and offering crucial atomistic insights into water-metal interfaces.
description: 24 pages, 15 figures (include Supplemental Material)
Pole position of the $a_1(1260)$ resonance in a three-body unitary framework
Creators: name: Sadasivan, Daniel
name: Alexandru, Andrei
name: Akdag, Hakan
name: Amorim, Felipe
name: Brett, Ruairí
name: Culver, Chris
name: Döring, Michael
name: Lee, Frank X.
name: Mai, Maxim
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Masses, widths, and branching ratios of hadronic resonances are quantified by their pole positions and residues with respect to transition amplitudes on the Riemann sheets of the complex energy-plane. In this study we discuss the analytic structure in the physical energy region of three-body scattering amplitudes on such manifolds. As an application, we determine the pole position of the $a_1(1260)$ meson from the ALEPH experiment by allowing for $πρ$ coupled channels in S- and D-wave. We find it to be $\sqrt{s_0}=(1232^{+15+9}_{-0-11}-i266^{+0+15}_{-22-27})~\text{MeV}$.
description: 17 pages, 13 figures
New Photometry and Spectroscopy of DW Cnc
Creators: name: Ramirez, S. H.
name: Montero, O. Segura
name: Michel, R.
name: Echevarria, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present new observations of the cataclysmic variable DW Cancri, after the system recovered from a low state. We performed a power spectrum analysis that reveals a clear signal of the 38 min spin period in our photometric data. Our spectroscopic power spectrum search was consistent with studies performed before the low state, showing the orbital and spin modulations. We also conducted a Doppler Tomography study which exhibits a disc structure and an enhanced emission region, possibly related to a hot spot component. Through a wavelet transform analysis we also found evidence of the 70 min spin-orbit beat period. We interpret these results as indication of a partial recovery of the system. Nonetheless, DW Cnc does not yet show all the original photometric modulations reported in 2004, before experiencing the low state. Namely, these signals are a 38 min spin period, an 86 min orbital period, a 70 min beat period between the latter modulations, and an unresolved 110 min period. Even though our photometry shows a spin cycle modulation and a long 108 min period, it lacks the beat and orbital period signals. Thus, we propose further observations of DW Cancri, to elucidate if the mechanisms giving rise to the signatures observed prior to the low state, require more time to reactivate.
description: 32 pages, 21 figures