cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Delayed Impact of Fair Machine Learning
Creators: name: Liu, Lydia T.
name: Dean, Sarah
name: Rolf, Esther
name: Simchowitz, Max
name: Hardt, Moritz
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Fairness in machine learning has predominantly been studied in static classification settings without concern for how decisions change the underlying population over time. Conventional wisdom suggests that fairness criteria promote the long-term well-being of those groups they aim to protect. We study how static fairness criteria interact with temporal indicators of well-being, such as long-term improvement, stagnation, and decline in a variable of interest. We demonstrate that even in a one-step feedback model, common fairness criteria in general do not promote improvement over time, and may in fact cause harm in cases where an unconstrained objective would not. We completely characterize the delayed impact of three standard criteria, contrasting the regimes in which these exhibit qualitatively different behavior. In addition, we find that a natural form of measurement error broadens the regime in which fairness criteria perform favorably. Our results highlight the importance of measurement and temporal modeling in the evaluation of fairness criteria, suggesting a range of new challenges and trade-offs.
description: 37 pages, 6 figures
COMPRENSIONI E MALINTESI NELLA COMUNICAZIONE INTERCULTURALE. UN ESEMPIO DELL'INCONTRO TRA TEDESCHI E ITALIANI
Creators: name: NIENHAUS, STEFAN
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: comunicazione interculturale; cultura; stereotipi

description: Thanks to the process of globalization, demands for intercultural communication skills are increasing more and more. The paper examines intercultural communication as the management of messages across cultures, particularly between the German and Italian ones. But often, problems of communication arise in intercultural dialogue when the communicators have different values and understand concepts of meaning and identity in strikingly different ways. Moreover, the author discusses about what stereotypes mean, how they arise, why they are often inaccurate and even dangerous, and how to avoid stereotypes in interactions with people from other cultures and carry out intercultural communications in a more effective way.
description: Studi di glottodidattica, V. 2, N. 2 (2008)
Shell-model study of $\log ft$ values for $^{139,140,141}$Ba $\rightarrow$ $^{139,140,141}$La transitions
Creators: name: Sharma, Shweta
name: Srivastava, Praveen C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the present work, beta-decay properties such as $\log ft$ values and half-lives have been systematically studied corresponding to Ba isotopes using large-scale shell-model calculations. An extensive comparison of beta decay results corresponding to $^{141}$Ba$\rightarrow$ $^{141}$La using shell-model calculations is made with the recently available experimental data. In addition, we have also calculated the nuclear and beta decay properties corresponding to $^{139}$Ba$\rightarrow$ $^{139}$La and $^{140}$Ba$\rightarrow$ $^{140}$La transitions. The model-space considered here is $Z=50-82$ and $N=82-126$ with $^{132}$Sn core, and the interaction employed here is jj56pnb interaction. The beta decay results using shell-model calculations for all the mentioned isotopes are compared with the available experimental data. This is the first theoretical interpretation corresponding to recent experimental data.
description: 26 pages, 7 figures
Sampling and analytical methods. Mineralogy and Geochemistry of Peridotites and Chromitites in the Aladag Ophiolite (S. Turkey): Melt Evolution of the Cretaceous Neotethyan mantle
Creators: name: Dongyang Lian
name: Jingsui Yang
name: Yildirim Dilek
name: Rocholl, Alexander
Publisher: name: Geological Society of London
Year: 2018
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary File 1. Sampling and analytical methods.
LA SCHEDA US. PERCHÉ SUL SAGGIO NON SI SCRIVE IL SAGGIO...
Creators: name: ROSSINI, GIOVANNA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: microlingua dell’archeologia; italiano L2; scheda US

description: L'insegnamento dell'italiano L2 per scopi accademici deve essere calibrato su esigenze più o meno circoscritte ed omogenee. La seguente ipotesi di lavoro è fondata su una preliminare analisi dei bisogni, incentrata sulla formazione archeologica offerta nell'ambito di istituti universitari americani o canadesi convenzionati con università italiane. La prospettiva dell'indagine tiene conto dei possibili eventi comunicativi che possono coinvolgere un archeologo - sia nell'ambito dell'attività da campo sia nell'ambito dell'attività di ricerca -, del lessico specifico che richiedono e delle modalità di interazione. Nello specifico, la proposta di lavoro concerne un peculiare genere testuale inerente propriamente all'attività di scavo, un documento tecnico di documentazione del "saggio" stratigrafico, la scheda US.
description: Studi di glottodidattica, V. 2, N. 2 (2008)
Phase Transitions in Two-Dimensional Traffic Flow Models
Creators: name: Cuesta, José A.
name: Martínez, Froilán C.
name: Molera, Juan M.
name: Escuela, Angel Sánchez
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We introduce two simple two-dimensional lattice models to study traffic flow in cities. We have found that a few basic elements give rise to the characteristic phase diagram of a first-order phase transition from a freely moving phase to a jammed state, with a critical point. The jammed phase presents new transitions corresponding to structural transformations of the jam. We discuss their relevance in the infinite size limit.
description: RevTeX 3.0 file. Figures available upon request to e-address cuesta@ing.uc3m.es (or 'dopico' or 'molera' or 'anxo', same node)
On the on-line coloring of unit interval graphs with proper interval representation
Creators: name: Curbelo, Israel R.
name: Malko, Hannah R.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Combinatorics (math.CO)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C15 (Primary) 68W27 (Secondary)

description: We define the problem as a two-player game between Algorithm and Builder. The game is played in rounds. Each round, Builder presents an interval that is neither contained in nor contains any previously presented interval. Algorithm immediately and irrevocably assigns the interval a color that has not been assigned to any interval intersecting it. The set of intervals form an interval representation for a unit interval graph and the colors form a proper coloring of that graph. For every positive integer $ω$, we define the value $R(ω)$ as the maximum number of colors for which Builder has a strategy that forces Algorithm to use $R(ω)$ colors with the restriction that the unit interval graph constructed cannot contain a clique of size $ω+1$. In 1981, Chrobak and Ślusarek showed that $R(ω)\leq2ω-1$. In 2005, Epstein and Levy showed that $R(ω)\geq\lfloor{3ω/2\rfloor}$. This problem remained unsolved for $ω\geq 3$. In 2023, Biró and Curbelo showed that $R(3)=5$. In this paper, we show that $R(4)=7$
description: To be published in Discrete Mathematics & Theoretical Computer Science (DMTCS)
LA LETTERATURA FANTASTICA E L'IMPORTANZA PER LA FORMAZIONE INTEGRALE DEL BAMBINO
Creators: name: RUSSO, ANTONELLA
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: letteratura fantastica; formazione del bambino; fiabe

description: Quando alla fine degli anni '60 la televisione si impone come mezzo di comunicazione dominante, automaticamente si assiste ad una diminuzione della lettura di libri da parte dei giovani. Con l'arrivo del computer nelle case e l'esplosione delle nuove tecnologie di comunicazione, vediamo rinforzarsi questa tendenza in modo considerevole: l'unico tipo di 'lettura cartacea' che continua a sopravvivere, con grande successo, è quella della letteratura fantastica. Quale è il segreto dell'interesse verso questo tipo di letteratura? Che ruolo occupa nell'insegnamento scolastico? Può essere considerato uno strumento didattico efficace? Queste domande costituiscono il punto di partenza del presente saggio, alle quali si cercherà di rispondere sviluppando due parti: nella prima parte sarà dedicata una breve introduzione alle caratteristiche e alle tematiche proprie della letteratura fantastica, prendendo in considerazione lo studio critico di Todorov e affronterò i motivi che spingono il lettore ad avvicinarsi alla letteratura fantastica, facendo riferimento anche alle teorie psicoanalitiche di Freud e al suo concetto di unheimlich; la seconda parte sarà dedicata all'importanza della letteratura fantastica, in particolare della fabia, come strumento pedagogico indispensabile per la formazione e la crescita del bambino, fornendo alcuni esempi.
description: Studi di glottodidattica, V. 2, N. 2 (2008)
Spectral Efficiency of Mixed-ADC Massive MIMO
Creators: name: Pirzadeh, Hessam
name: Swindlehurst, A. Lee
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We study the spectral efficiency (SE) of a mixed-ADC massive MIMO system in which K single-antenna users communicate with a base station (BS) equipped with M antennas connected to N high-resolution ADCs and M-N one-bit ADCs. This architecture has been proposed as an approach for realizing massive MIMO systems with reasonable power consumption. First, we investigate the effectiveness of mixed-ADC architectures in overcoming the channel estimation error caused by coarse quantization. For the channel estimation phase, we study to what extent one can combat the SE loss by exploiting just N << M pairs of high-resolution ADCs. We extend the round-robin training scheme for mixed-ADC systems to include both high-resolution and one-bit quantized observations. Then, we analyze the impact of the resulting channel estimation error in the data detection phase. We consider random high-resolution ADC assignment and also analyze a simple antenna selection scheme to increase the SE. Analytical expressions are derived for the SE for maximum ratio combining (MRC) and numerical results are presented for zero-forcing (ZF) detection. Performance comparisons are made against systems with uniform ADC resolution and against mixed-ADC systems without round-robin training to illustrate under what conditions each approach provides the greatest benefit.
description: To appear in IEEE Transactions on Signal Processing
INSEGNAMENTO/APPRENDIMENTO DELL’ITALIANO L2 IN CLASSI PLURILINGUE ARABOFONE LA REALTA’ ALGERINA
Creators: name: BADREDINE, BEDDEK
Publisher: name: Studi di glottodidattica
Year: 2009

description: Questo progetto “Insegnamento dell’italiano in classi plurilingue. Riflessioni su alcune difficoltà trasversali dell’apprendimento e analisi degli errori” in apprendenti arabofoni di italiano L2 nella abilità della lingua scritta e orale, vuole essere uno spazio di riflessione sul discente universitario algerino a livello comportamentista-cognitivo e al contempo operare una ricognizione dei risultati positivi e negativi emersi nel corso dell’apprendimento. Partendo da un’ottica strettamente pedagogica, si è cercato di raccogliere un certo numero di dati oggettivi (desunti dall’osservazione sistematica delle composizioni, dei dictocomp, degli esercizi strutturali, del dettato, del cloze, dei test, delle verifiche, ecc.) per costruire delle ipotesi e mettere a fuoco l’assunto del progetto.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
Edgar Wind, Percy Schramm and the Warburg-Kreis On the concepts of Nachleben, Renovatio, Correctio
Creators: name: Ghelardi, Maurizio; Sacco, Daniela
Publisher: name: La Rivista di Engramma
Year: 2020
Subjects: Percy Ernst Schramm
Edgar Wind
Nachleben der Antike

description: Maurizio Ghelardi’s essay examines the debate between Edgar Wind and Percy Ernst Schramm on the idea of the Nachleben der Antike. The concepts proposed by Schramm of renovatio and correctio referring to images of power during the Middle Ages are in fact a departure from the idea of the persistence of Antiquity understood by Wind as the rebirth of paganism in the Renaissance, a departure that, when analysed, proves crucial for the outcomes of the dissemination of Warburgian studies.
Large voltage from spin pumping in magnetic tunnel junctions
Creators: name: Chui, S. T.
name: Lin, Z. F.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We studied the response of a ferromagnet-insulator-normal metal tunnel structure under an external oscillating radio frequency (R.F.) magnetic field. The D. C. voltage across the junction is calculated and is found not to decrease despite the high resistance of the junction; instead, it is of the order of $μV$ to $100μV$, much larger than the experimentally observed value (100 nano-V) in the "strong coupled" ohmic ferromagnet-normal metal bilayers. This is consistent with recent experimental results in tunnel structures, where the voltage is larger than $μV$s. The damping and loss of an external RF field in this structure is calculated.
ITALIANO L2: UNA VIA ITALIANA
Creators: name: BALBONI, PAOLO E.
Publisher: name: Studi di glottodidattica
Year: 2009

description: Questa sintesi si articola in due direzioni: da un lato un rendiconto su quanto è stato fatto nell’ultimo quindicennio, dall’altro l’analisi delle linee che paiono emergere e che potrebbero essere seguite nei prossimi anni per affrontare l’insegnamento dell’italiano a non nativi (Ital2: italiano come lingua seconda). La situazione descritta è quella della primavera 2008.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
Inomogeneous Quantum Groups as Symmetries of Phonons
Creators: name: Bonechi, F.
name: Celeghini, E.
name: Giachetti, R.
name: Sorace, E.
name: Tarlini, M.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The quantum deformed (1+1) Poincare' algebra is shown to be the kinematical symmetry of the harmonic chain, whose spacing is given by the deformation parameter. Phonons with their symmetries as well as multiphonon processes are derived from the quantum group structure. Inhomogeneous quantum groups are thus proposed as kinematical invariance of discrete systems.
description: 5 pags. 0 figs
EARLY LANGUAGE LEARNING AND TEACHER TRAINING: A FOREIGN LANGUAGE SYLLABUS FOR PRIMARY SCHOOL TEACHERS
Creators: name: CALABRESE, RITA
name: DAWES, BARBARA
Publisher: name: Studi di glottodidattica
Year: 2009

description: The Decree Law no.59 of 2004 concerning the introduction of foreign languages in the Italian primary school has led to several nationwide teacher training programmes with the aim to provide in-service training for teachers employed in all types and levels of school according to the EU directives contained in Document no.36 of April 2003. One such scheme is the Training Programme (ex Comunicazione di Servizio Ministeriale n.1446 of 29th July 2005) to develop linguistic and communicative competences in English and teaching methodology for primary school teachers which envisages a concerted effort on the part of the country's educational institutions. The aim of this article is to review the present training scheme and to suggest possible outcomes and future prospects. The article is divided into two parts. In part one, to contextualise the present project, we outline a brief history of the language policies which have been carried out in Europe and in Italy in the last decades in the primary school sector. In part two, we describe the operational phases which have led to the implementation of the current training programme and explain the theoretical and legal basis of the project as well as the research perspectives underlying the creation of specific syllabuses for each level of language competence. In the conclusion we suggest ways of developing our research in order to contribute to the building of a national framework for foreign language teacher training.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
Light scalar dark matter at neutrino oscillation experiments
Creators: name: Liao, Jiajun
name: Marfatia, Danny
name: Whisnant, Kerry
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Couplings between light scalar dark matter (DM) and neutrinos induce a perturbation to the neutrino mass matrix. If the DM oscillation period is smaller than ten minutes (or equivalently, the DM particle is heavier than $0.69\times10^{-17}$ eV), the fast-averaging over an oscillation cycle leads to a modification of the measured oscillation parameters. We present a specific $μ-τ$ symmetric model in which the measured value of $θ_{13}$ is entirely generated by the DM interaction, and which reproduces the other measured oscillation parameters. For a scalar DM particle lighter than $10^{-15}$ eV, adiabatic solar neutrino propagation is maintained. A suppression of the sensitivity to CP violation at long-baseline neutrino experiments is predicted in this model. We find that DUNE cannot exclude the DM scenario at more than $3σ$ C.L. for bimaximal, tribimaximal and hexagonal mixing, while JUNO can rule it out at more than $6σ$ C.L. by precisely measuring both $θ_{12}$ and $θ_{13}$.
description: 21 pages, 2 figures. Version to appear in JHEP
title: Making Worlds Accessible. Essays in Honor of Angelika Kratzer
Creators: name: Bhatt, Rajesh
name: Frana, Ilaria
name: Menéndez-Benito, Paula
Publisher: name: University of Massachusetts Amherst
Year: 2020

description: Every linguist knows how colossal Angelika’s impact on our field is. Hearing aboutthis would not be informative for anybody who might (virtually) pick up this volume, including Angelika herself. So, instead of writing about, say, Angelika’s crucial role in the development of our understanding of modality, we will write about what Angelika means to us, as a teacher, advisor, mentor, colleague, and friend. We know that these words will resonate with many of you (Angelika has meant so much to so many people). We just get to be the lucky ones to tell Angelika publicly.
A Modified Approximate Dynamic Programming Algorithm for Community-level Food Security Following Disasters
Creators: name: Nozhati, Saeed
name: Sarkale, Yugandhar
name: Ellingwood, Bruce R.
name: Chong, Edwin K. P.
name: Mahmoud, Hussam
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In the aftermath of an extreme natural hazard, community residents must have access to functioning food retailers to maintain food security. Food security is dependent on supporting critical infrastructure systems, including electricity, potable water, and transportation. An understanding of the response of such interdependent networks and the process of post-disaster recovery is the cornerstone of an efficient emergency management plan. In this study, the interconnectedness among different critical facilities, such as electrical power networks, water networks, highway bridges, and food retailers, is modeled. The study considers various sources of uncertainty and complexity in the recovery process of a community to capture the stochastic behavior of the spatially distributed infrastructure systems. The study utilizes an approximate dynamic programming (ADP) framework to allocate resources to restore infrastructure components efficiently. The proposed ADP scheme enables us to identify near-optimal restoration decisions at the community level. Furthermore, we employ a simulated annealing (SA) algorithm to complement the proposed ADP framework and to identify near-optimal actions accurately. In the sequel, we use the City of Gilroy, California, USA to illustrate the applicability of the proposed methodology following a severe earthquake. The approach can be implemented efficiently to identify practical policy interventions to hasten recovery of food systems and to reduce adverse food-insecurity impacts for other hazards and communities.
description: The material presented here might have some overlap with arXiv:1803.04144 and arXiv:1803.01451. Nonetheless, this material contains substantial additions
L'UTILIZZO DELLA CANZONE PER LA PROMOZIONE E L'INSEGNAMENTO DELLA LINGUA, DELLA CULTURA E DELLA LETTERATURA ITALIANA ALL'ESTERO
Creators: name: CAON, FABIO
name: LOBASSO, FABRIZIO
Publisher: name: Studi di glottodidattica
Year: 2009

description: Con questo contributo si vuole rendere sinteticamente conto delle potenzialità nell'uso della canzone sia per la promozione che per la didattica della lingua, della cultura e della letteratura italiana all'estero. Dal punto di vista didattico, la scelta della canzone si basa su fattori motivazionali legati al piacere dell'ascolto e ai conseguenti vantaggi che tali fattori possono generare in termini di apprendimento linguistico significativo, su fattori culturali legati all'importante ruolo che la canzone ha avuto nell'arricchimento del patrimonio culturale italiano, su fattori letterari legati al repertorio retoricoespressivo che avvicina (seppur con necessarie distinzioni) certa canzone leggera alla tradizione letteraria italiana "alta". Dal punto di vista diplomatico, la necessità di trovare forme di promozione innovative e fortemente motivanti della lingua, della cultura e della letteratura italiana trovano nella canzone un naturale luogo d'elezione, considerando il grande successo e il notevole interesse per la canzone italiana a livello mondiale. Gli obiettivi di questi due ambiti d'azione trovano una naturale convergenza nel modello della lezione-concerto qui presentato che permette di creare dei modelli formativi flessibili e innovativi rivolti a docenti, a studenti di italiano, a comunità di connazionali all'estero ma anche ad appassionati di italiano o di canzone.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
Smooth estimation of a reliability function in ranked set sampling
Creators: name: M. Mahdizadeh
name: Zamanzade, Ehsan
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Inorganic Chemistry
subject: Computational Biology

description: The authors develop a kernel-based estimator of a dynamic reliability measure for use with independent ranked set samples. The estimator is in the form of a ratio, whose numerator and denominator are shown to outperform their rivals based on simple random samples. Some asymptotic properties about the proposed estimator are also established. Simulation studies reveal finite-sample properties of the estimator. The technique is finally applied on an agricultural data set.
GLI AUDIOVISIVI NELLA GLOTTODIDATTICA: UN’UNITA’ DI APPRENDIMENTO BASATA SU SEQUENZE TRATTE DAL FILM “VIAGGI DI NOZZE” di CARLO VERDONE
Creators: name: CORBUCCI, GLORIA
Publisher: name: Studi di glottodidattica
Year: 2009

description: La visione di un film in classe e’ importante ai fini della presentazione delle componenti paralinguistiche della comunicazione (pronuncia, intonazione, pause, ritmo, accento), ma diventa addirittura indispensabile per la comprensione delle componenti extralinguistiche: i gesti,la mimica facciale (cinesica), la distanza fra gli interlocutori (prossemica), il significato sociale di oggetti e vestiti (oggettemica e vestemica) non possono essere analizzabili tramite materiali cartacei o audio. I film sono un veicolo di conoscenza di molti aspetti sociali legati al contesto linguistico dei parlanti nativi, che possono stimolare un confronto interculturale; sono inoltre utili per presentare agli studenti campioni di varietà linguistiche, allo scopo di ampliare il loro repertorio comunicativo. Dopo la visione, tecniche di produzione orale come la drammatizzazione e il roleplay diventano un valido riassunto dei principali tratti prosodici ed extralinguistici analizzati nel video. Una regola da non dimenticare nell’uso di un film in classe è quella di selezionare sequenze brevi e significative, che non superino complessivamente i 5-10 minuti. Una visione più lunga non garantirebbe la concentrazione degli studenti e potrebbe rendere poco agevole la costruzione di percorsi didattici adeguati.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
Statistical Uncertainties in Temperature Diagnostics for Hot Coronal Plasma Using the ASCA SIS
Creators: name: Swartz, Douglas A.
name: O'Dell, S. L.
name: Sulkanen, M. E.
name: Tennant, A. F.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Statistical uncertainties in determining the temperatures of hot (0.5 keV to 10 keV) coronal plasmas are investigated. The statistical precision of various spectral temperature diagnostics is established by analyzing synthetic ASCA Solid-state Imaging Spectrometer (SIS) CCD spectra. The diagnostics considered are the ratio of hydrogen-like to helium-like line complexes of $Z\ge14$ elements, line-free portions of the continuum, and the entire spectrum. While fits to the entire spectrum yield the highest statistical precision, it is argued that fits to the line-free continuum are less susceptible to atomic data uncertainties but lead to a modest increase in statistical uncertainty over full spectral fits. Temperatures deduced from line ratios can have similar accuracy but only over a narrow range of temperatures. Convenient estimates of statistical accuracies for the various temperature diagnostics are provided which may be used in planning ASCA SIS observations.
description: postscript file of 8 pages+3 figures; 4 files tarred, compressed and uuencoded. To appear in the Astrophysical Journal Letters; contents copyright 1994 American Astronomical Society
Effects of shock and turbulence properties on electron acceleration
Creators: name: Qin, G.
name: Kong, F. -J.
name: Zhang, L. -H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Using test particle simulations we study electron acceleration at collisionless shocks with a two-component model turbulent magnetic field with slab component including dissipation range. We investigate the importance of shock normal angle $θ_{Bn}$, magnetic turbulence level $\left(b/B_0\right)^2$, and shock thickness on the acceleration efficiency of electrons. It is shown that at perpendicular shocks the electron acceleration efficiency is enhanced with the decreasing of $\left(b/B_0\right)^2$, and at $\left(b/B_0\right)^2=0.01$ the acceleration becomes significant due to strong drift electric field with long time particles staying near the shock front for shock drift acceleration (SDA). In addition, at parallel shocks the electron acceleration efficiency is increasing with the increasing of $\left(b/B_0\right)^2$, and at $\left(b/B_0\right)^2=10.0$ the acceleration is very strong due to sufficient pitch-angle scattering for first-order Fermi acceleration, as well as due to large local component of magnetic field perpendicular to shock normal angle for SDA. On the other hand, the high perpendicular shock acceleration with $\left(b/B_0\right)^2=0.01$ is stronger than the high parallel shock acceleration with ($\left(b/B_0\right)^2=10.0$), the reason might be the assumption that SDA is more efficient than first-order Fermi acceleration. Furthermore, for oblique shocks, the acceleration efficiency is small no matter the turbulence level is low or high. Moreover, for the effect of shock thickness on electron acceleration at perpendicular shocks, we show that there exists the bend-over thickness, $L_{\text{diff,b}}$. The acceleration efficiency does not change evidently if the shock thickness is much smaller than $L_{\text{diff,b}}$. However, if the shock thickness is much larger than $L_{\text{diff,b}}$, the acceleration efficiency starts to drop abruptly.
description: 27 pages, 9 figures
Compact QED in Landau Gauge: a lattice gauge fixing case study
Creators: name: Polikarpov, M. I.
name: Yee, Ken
name: Zubkov, M. A.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Condensed Matter (cond-mat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive different representations of compact QED fixed to Landau gauge by the lattice Faddeev-Popov procedure. Our analysis finds that (A)Nielsen-Olesen vortices arising from the compactness of the gauge-fixing action are {\it quenched\/}, that is, the Faddeev-Popov determinant cancels them out and they do not influence correlation functions such as the photon propagator; (B)Dirac strings are responsible for the nonzero mass pole of the photon propagator. Since in $D=3+1$ the photon mass undergoes a rapid drop to zero at $β_c$, the deconfinement point, this result predicts that Dirac strings must be sufficiently dilute at $β> β_c$. Indeed, numerical simulations reveal that the string density undergoes a rapid drop to near zero at $β\sim β_c$.
description: 19 pages, 4 Figures(provided), LSU-431-93
INTERFERENZA FONETICA UN’ANALISI DEGLI ERRORI PIU’ COMUNI COMMESSI DA PARLANTI DI MADRELINGUA ITALIANA NELLA PRONUNCIA DELL’INGLESE
Creators: name: GAUCI, PHYLLISIENNE
Publisher: name: Studi di glottodidattica
Year: 2009

description: L’apprendimento di una seconda lingua è un processo lungo e pieno di difficoltà. Quando poi ci apprestiamo ad apprendere una nuova pronuncia, il primo passo è quello di distinguere i suoni che formano una parte integrale della nostra lingua dagl’ altri che sono a noi ignoti. Susseguentemente bisogna essere pronti ad abbandonare i primi per abbracciare questi ultimi. In questo articolo viene documentata l’interferenza fonetica che risulta dal contatto fra due lingue nettamente diverse - italiano e inglese. Il metodo di comparazione che viene adottato prende spunto dall’ analisi contrastiva e si basa dunque sull’ analisi degli errori che vengono commessi - in questo caso da parlanti di madrelingue italiana che studiano l’inglese. Errori che altro non sono che deviazioni da ciò che è ritenuto standard in inglese, provenienti perlopiù dall’interferenza fonetica causata dal contatto fra le due lingue.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
On the locality of qubit encodings of local fermionic modes
Creators: name: Guaita, Tommaso
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Known mappings that encode fermionic modes into a bosonic qubit system are non-local transformations. In this paper we establish that this must necessarily be the case, if the locality graph is complex enough (for example for regular 2$d$ lattices). In particular we show that, in case of exact encodings, a fully local mapping is possible if and only if the locality graph is a tree. If instead we allow ourselves to also consider operators that only act fermionically on a subspace of the qubit Hilbert space, then we show that this subspace must be composed of long range entangled states, if the locality graph contains at least two overlapping cycles. This implies, for instance, that on 2$d$ lattices there exist states that are of low depth from the fermionic point of view, while in any encoding require a circuit of depth at least proportional to the system size to be prepared.
description: 13 pages, 3 figures
AN EXPERIENCE OF INTER-CULTURAL EDUCATION IN AN EVOLUTIONARY CLASS
Creators: name: LONGO, DAMIANO
Publisher: name: Studi di glottodidattica
Year: 2009
Subjects: foreign language; second language acquisition; communicative approach intercultural competence; learning

description: In this paper, students inter-cultural competence in an American classroom has been discussed. An ideal classroom has been created where students with experience abroad can refer to their own experience in order to share their own background with others. Instructors could take advantage of this source of real cultural exchanges without modifying the syllabus of the course. In this way, learners could develop their critical competence by using the intercultural approach. Learners could not only know another culture avoiding discrimination and developing tolerance but also be inter-cultural people with the experience of their own life.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
L’INSEGNAMENTO DELLA CULTURA NELLA DIDATTICA DELLE LINGUE STRANIERE IN GERMANIA
Creators: name: SNAIDERO, TIBERIO
Publisher: name: Studi di glottodidattica
Year: 2009

description: Fin dalla fine del XIX secolo la didattica delle lingue straniere ha sviluppato in Germania un approccio all'insegnamento che oggi si chiamerebbe interculturale. Autori come Erdmenger, Melde e Bredella rimangono dei punti di riferimento della Didattica dell'Inglese e del Francese, rappresentando le tre posizioni che hanno caratterizzato la teoria e la prassi pedagogiche dell'insegnamento delle lingue straniere in Germania: la comunicativo-pragmatica (il "linguista" Erdmenger), quella orientata all'educazione politica (la "studiosa di scienze sociali" Melde) e la letterario-interculturale (l'"umanista" Bredella). A partire dagli anni Novanta l'approccio si è fatto sempre più transculturale e transnazionale, lasciandosi volentieri influenzare dagli approdi della riflessione delle scienze umane intorno al concetto di "competenza interculturale". La ricerca glottodidattica continua ad essere in Germania assai viva e feconda di proposte che anche l'insegnante di lingue italiano potrebbe trovare proficuo studiare.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
Strong thermal $SO(10)$-inspired leptogenesis in the light of recent results from long-baseline neutrino experiments
Creators: name: Chianese, Marco
name: Di Bari, Pasquale
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We confront recent experimental results on neutrino mixing parameters with the requirements from strong thermal $SO(10)$-inspired leptogenesis, where the asymmetry is produced from next-to-lightest right-handed neutrinos $N_2$ independently of the initial conditions. There is a nice agreement with latest global analyses supporting $\sinδ< 0$ and normal ordering at $ \sim 95\%$ C.L. On the other hand, the more stringent experimental lower bound on the atmospheric mixing angle starts to corner strong thermal $SO(10)$-inspired leptogenesis. Prompted and encouraged by this rapid experimental advance, we obtain a precise determination of the allowed region in the plane $δ$ versus $θ_{23}$. We confirm that for the benchmark case $α_2 \equiv m_{D2} / m_{\rm charm}= 5 \, $, where $m_{D2}$ is the intermediate neutrino Dirac mass setting the $N_2$ mass, and initial pre-existing asymmetry $N_{B-L}^{\rm p, i} = 10^{-3}$, the bulk of solutions lies in the first octant. Though most of the solutions are found outside the $95\%$ C.L. experimental region, there is still a big allowed fraction that does not require a too fine-tuned choice of the Majorana phases so that the neutrinoless double beta decay effective neutrino mass allowed range is still $m_{ee}\simeq [10,30]\,{\rm meV}$. We also show how the constraints depend on $N_{B-L}^{\rm p, i}$ and $α_2$. In particular, we show that the current best fit, ($θ_{23},δ)\simeq (47^{\circ}, -130^{\circ})$, can be reproduced for $N_{B-L}^{\rm p, i} = 10^{-3}$ and $α_2 = 6$. Such large values for $α_2$ have been recently obtained in a few realistic fits within $SO(10)$-inspired models. Finally, we also obtain that current neutrino data rule out $N_{B-L}^{\rm p, i} \gtrsim 0.1$ for $α_2 \lesssim 4.7$.
description: 21 pages, 5 figures. v2: matching version to be published in JHEP. arXiv admin note: text overlap with arXiv:1705.01935
Sampling and analytical methods. Mineralogy and Geochemistry of Peridotites and 1 Chromitites in the Aladag Ophiolite (S. Turkey): Melt Evolution of the Cretaceous Neotethyan mantle
Creators: name: Dongyang Lian
name: Jingsui Yang
name: Yildirim Dilek
name: Rocholl, Alexander
Publisher: name: Geological Society of London
Year: 2018
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Supplementary File 1. Sampling and analytical methods.
Microscopic thickness determination of thin graphite films formed on SiC from quantized oscillation in reflectivity of low-energy electrons
Creators: name: Hibino, H.
name: Kageshima, H.
name: Maeda, F.
name: Nagase, M.
name: Kobayashi, Y.
name: Yamaguchi, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Low-energy electron microscopy (LEEM) was used to measure the reflectivity of low-energy electrons from graphitized SiC(0001). The reflectivity shows distinct quantized oscillations as a function of the electron energy and graphite thickness. Conduction bands in thin graphite films form discrete energy levels whose wave vectors are normal to the surface. Resonance of the incident electrons with these quantized conduction band states enhances electrons to transmit through the film into the SiC substrate, resulting in dips in the reflectivity. The dip positions are well explained using tight-binding and first-principles calculations. The graphite thickness distribution can be determined microscopically from LEEM reflectivity measurements.
description: 7 pages, 3 figures
INTERPRETING HUMAN'S PLACE IN NATURE
Creators: name: SARV, LILL
Publisher: name: Studi di glottodidattica
Year: 2009

description: The main scope of this article is to discuss the human-nature relationship and the influence of outdoor learning on this relation. Nature is conceived in today's society as opposition of culture and as have shown researchers people don't see themselves as a part of the nature when they have to define nature. As a result of the propaganda of different green movements and the instructions from teachers and forest guards, youngsters consider the right behaviour in the forests as follows - no walking on the grass and off the official forest paths, no picking flowers etc. They consider environmental protection very important, but at the same time they are not sure what it is. There is a gap between knowledge and action. The rules that forbid free exploring in the wilderness are reinforcing the alienation from nature. As a result of alienation children don't have a clue how and what the things that surround them are made of and where do they come from have shown several sociological studies made in Germany by natural sociologists. One interesting result of these studies is the fact that children who spend more time outside have similar idea of nature as have the others who have had less personal contact with nature. This shows that alienation from nature exist also on theoretical level as a product of nowadays society. The article argues that it is important to start considering man as a sign that is a part of larger web of signs - the semiobiosphere as believed Mikhail Bachtin and Charles Sanders Peirce.
description: Studi di glottodidattica, V. 2, N. 1 (2008)
title: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f.233
Creators: name: Rouzeau, Benoît
name: Rouzeau, Benoît
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: subject: cistercien
subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains. Numérisation en mode image
description: Relation: https://cisterciensetressources.lamop.fr/
description: Bibliographic citation: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f.233, in Projet Cisterciens et Ressources [Ressource en ligne], https://cisterciensetressources.lamop.fr
description: Inventaire des titres de propriété et des actes concernant les droits de l'abbaye de Morimond, Manuscrit n° 1, Bibliothèque municipale de Bourbonne-les-Bains, f. 233
Matter Distribution for Power Spectra with Broken Scale Invariance
Creators: name: Amendola, L.
name: Gottloeber, S.
name: Muecket, J. P.
name: Mueller, V.
Publisher: name: arXiv
Year: 1994
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: To test the primordial power spectra predicted by a double inflationary model with a break of amplitude $Δ=3$ at a scale of $2π/k\approx 10 \hm$ and CDM as dominant matter content, we perform PM simulations with 128$^3$ particles on a 256$^3$ grid. The broken scale invariance of the power spectra explains the extra power observed in the large-scale matter distribution. COBE-normalized spectra and a linear biasing with $b\approx 2$ are shown to reproduce the reconstructed power spectra from the CfA catalog. Identifying galactic halos with overdensity of approximately two times the cell variance, we can fit the angular correlation function using both the Limber equation and creating a APM-like angular projection with the observed luminosity function. Finally, the higher order moments of the galaxy distribution are shown to fit reasonably well the observed values.
description: 13 pages, uuencoded tar-compressed file, one additional figure available on request, preprint Fermilab-Pub- 94/262-A
$n$-$\bar n$ oscillations and the neutron lifetime
Creators: name: Leontaris, George K.
name: Vergados, John D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Neutron-antineutron oscillations are considered in the light of recently proposed particle models, which claim to resolve the neutron lifetime anomaly, indicating the existence of baryon violating $ΔB=1$ interactions. Possible constraints are derived coming from the non-observation of neutron-antineutron oscillations, which can take place if the dark matter particle produced in neutron decay happens to be a Majorana fermion. It is shown that this can be realised in a simple MSSM extention where only the baryon number violating term $u^cd^cd^c$ is included whilst all other R-parity violating terms are prevented to avoid rapid proton decay. It is demostrated how this scenario can be implemented in a string motivated GUT broken to MSSM by fluxes.
description: 17 pages, updated version, references added
Orthogonal almost complex structure and its Nijenhuis tensor
Creators: name: Tang, Zizhou
name: Yan, Wenjiao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: In this paper, we demonstrate that on an almost Hermitian manifold $(M^{2n}, J, ds^2)$, a 2-form $φ=S^*Φ$, the pulling back of the Kähler form $Φ$ on the twistor bundle over $M^{2n}$, is non-degenerate if the squared norm $|N|^2$ of the Nijenhuis tensor is less than $\frac{64}{5}$ when $n\geq 3$ or less than $16$ when $n=2$. As a corollary, there exists no orthogonal almost complex structure on the standard sphere $(S^6, ds_0^2)$ with $|N|^2<\frac{64}{5}$ everywhere.
description: 11pages
ÉLÉMENTS POUR UNE DESCRIPTION DYNAMIQUE DU SYSTÈME VOCALIQUE DE L'ARABE
Creators: name: ABI AAD, ALBERT
Publisher: name: Studi di glottodidattica
Year: 2009

description: Gli studi relativi alla fonetica dell'arabo, sia classico sia moderno standard, individuano tre vocali che occupano le tre estremità del triangolo ideato dalla fonetica articolatoria. Oltre al fatto di essere troppo schematica, tale descrizione non sempre permette di mettere in risalto il carattere dinamico della fonazione dell'arabo ne le sue variazioni regionali e dialettali. Inoltre, l'arabo usa una scrittura alfabetica che pone problemi d'interferenze con il sistema sillabico delle lingue occidentali, interferenze che generano errori di scrittura difficili da controllare. Attraverso una rassegna di testi della tradizione grammaticale dell'arabo ci si propone di individuare gli elementi utili alla costruzione di una prospettiva diversa per lo studio della fonetica dell'arabo, e più specificamente del sistema vocalico i cui tre componenti brevi sono chiamati "movimenti", ("Êarakªt", plurale di "Êaraka"). Di che movimenti si tratta ? Quali sono i luoghi e i limiti di tali movimenti ? Perchè i grammatici arabi hanno localizzato le vocali brevi su un asse verticale : in alto la /a/, in mezzo la /u/ e in basso la /i/ ? E tale disposizione intrattiene dei legami con i codici non verbali (CNV) e con la concezione dello spazio? Le risposte a questi quesiti ci consentiranno di delineare un sistema di confronto tra le lingue europee e l'arabo, confronto utile per l'insegnamento dell'arabo come lingua straniera e delle lingue europee ad arabofoni.
description: Studi di glottodidattica, V. 1, N. 4 (2007)
One-dimensional asymmetrically coupled maps with defects
Creators: name: Biferale, L
name: Crisanti, A
name: Falcioni, M
name: Vulpiani, A
Publisher: name: arXiv
Year: 1993
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: In this letter we study chaotic dynamical properties of an asymmetrically coupled one-dimensional chain of maps. We discuss the existence of coherent regions in terms of the presence of defects along the chain. We find out that temporal chaos is instantaneously localized around one single defect and that the tangent vector jumps from one defect to another in an apparently random way. We quantitatively measure the localization properties by defining an entropy-like function in the space of tangent vectors.
description: 9 pages + 4 figures TeX dialect: Plain TeX + IOP macros (included)