cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
L’evoluzione pubblicistica del “governo delle banche” tra Stato e mercato
Creators: name: Befani, Guido
Publisher: name: P.A. Persona e Amministrazione
Year: 2018

description: Le nuove forme di intervento pubblico nel settore bancario hanno manifestato il sorgere di nuove figure istituzionali che sembrerebbero essere entrate di pieno diritto nel notorio “ordinamento amministrativo delle banche”. Nello specifico, appaiono significative le missioni pubblicistiche affidate alla Società di gestione delle attività, nella veste di bad bank pubblica, e della Cassa depositi e prestiti nel ruolo di banca nazionale di promozione, entrambe accomunate dalla presa di coscienza della Commissione europea che “un istituto con un mandato pubblico si trova in posizione migliore rispetto agli operatori privati per rimediare ai fallimenti del mercato”. Ma questa rinnovata espressione dello Stato-banchiere, che ha subito come condizione di legittimità l’applicazione del criterio dell’investitore di mercato, ha previsto delle paradossali e ipocrite scelte derogatorie rispetto al regime vincolistico-contabile riservato agli altri operatori bancari, suggerendo una riflessione sull’effettiva tenuta di un sistema ancora basato sulla “razionalità economica” dell’investitore pubblico.

The new forms of public intervention in the banking sector have shown the emergence of new institutional figures that would seem to have entered fully into the well-known “administrative order of banks”. In particular, appear to be significant the public missions entrusted to Società di gestione delle attività, as a public bad bank, and the Cassa depositi e prestiti as a national promotional bank, both have in common the European Commission's awareness that “an institution with a public mandate is better positioned than private operators to make up for market failures”. But this renewed expression of the "banker State", which has undergone the application of the market investor principle as a condition of legitimacy, has provided for paradoxical and hypocritical choices derogating from the binding-accounting regime reserved for other banking operators, suggesting a reflection on the effective holding of a system still based on the “economic rationality” of the public investor.

Parole chiave: Bad bank; credito e risparmio; intervento pubblico; banca nazionale di promozione.
Keywords: Bad bank, credit and savings; public intervention; national promotion bank
description: P.A. Persona e Amministrazione, N. 2 (2018)
Probing van der Waals interactions and detecting polar molecules by Förster resonance energy transfer with Rydberg atoms at temperatures below 100 mK
Creators: name: Zou, J.
name: Hogan, S. D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electric-field-controlled Förster resonance energy transfer (FRET) between Rydberg helium (He) atoms and ground-state ammonia (NH$_3$) molecules has been studied at translational temperatures below 100 mK. The experiments were performed in an intrabeam collision apparatus with pulsed supersonic beams of NH$_3$ seeded in He. A range of Förster resonances, between triplet Rydberg states in He with principal quantum numbers of 38, 39 and 40, and the inversion intervals in NH$_3$ were investigated. Resonance widths as low as $100\pm20$ MHz were observed for Rydberg-Rydberg transitions with electric dipole transition moments of 3270 D. These widths result from binary collisions at a mean center-of-mass speed of $19.3\pm2.6$ m/s. For transitions in which the initially prepared Rydberg states were strongly polarized, with large induced static electric dipole moments, van der Waals interactions between the collision partners increased the resonance widths to $\sim750$ MHz. From measurements of the rate of FRET for the narrowest resonances observed, a density of NH$_3$ of $(9.4\pm0.3)\times10^{9}$ cm$^{-3}$ in the upper ground-state inversion sublevel in the interaction region of the apparatus was determined non-destructively.
description: 6 pages, 4 figures
La full jurisdiction come problema. Pienezza della tutela giurisdizionale e teorie del potere, del processo e della Costituzione
Creators: name: Perfetti, Luca
Publisher: name: P.A. Persona e Amministrazione
Year: 2018

description: Sintesi
Il contributo raffronta le regole ed i principi affermati dal diritto europeo e dalla Corte Europea dei Diritti dell’Uomo con le differenti culture nazionali in materia di potere pubblico e Costituzione, evidenziando, in particolare, come l’impatto della giurisprudenza della CEDU sull’ordinamento nazionale possa risultare di maggiore o minore rilevanza a seconda proprio delle singole ricostruzioni nazionali con le quali si operi la comparazione. In questa prospettiva, laddove si assumano concezioni della Costituzione e del potere pubblico basate sulla pienezza della tutela giurisdizionale (art. 24 Cost.) e su di una concezione del potere pubblico funzionalizzata alla realizzazione e tutela dei diritti fondamentali (art. 2 Cost.), gli insegnamenti che vengono dall’elaborazione europea della full jurisdiction sembrano perdere di forza innovativa dirompente, risultando piuttosto mera conferma di costruzioni da tempo ricavabili dall’impianto costituzionale e, ad oggi, non adeguatamente valorizzate per via di retaggi culturali stratificatisi nel tempo. In questi termini, la giurisprudenza CEDU in materia di  full jurisdiction può certamente costituire valido contributo all’adeguata spiegazione del diritto vigente.
Abstract
The essay compares the rules established by European law and the European Court of Human Rights with the different national cultures concerning the public power and the Constitution; the essay highlights how the impact of the jurisprudence of the ECHR on the national legal system can result to be of greater or lesser importance, depending on the individual national reconstructions with which the comparison is made. In this perspective, in case views of the Constitution based on the fullness of judicial protection (Article 24 of the Constitution) and of the public power as functionalized to the realization and protection of fundamental rights (Article 2 of the Constitution) are assumed, the lessons that come from the European elaboration of the full jurisdiction seem to lose innovative and disruptive power, proving to be a mere confirmation of constructions already provided by the Italian constitutional system and, to date, not adequately valued due to cultural heritage stratified over time. In these terms, the ECHR jurisprudence in matters of full jurisdiction can certainly constitute a valid contribution to the proper explanation of the Italian law in force.
Parole chiave: piena giurisdizione – potere pubblico – diritti fondamentali – protezione - Costituzione -
Keywords: full jurisdiction – public power – fundamental rights – protection - Constitution -
description: P.A. Persona e Amministrazione, N. 2 (2018)
Scalar scattering by black holes and wormholes
Creators: name: Junior, Haroldo C. D. Lima
name: Benone, Carolina L.
name: Crispino, Luís C. B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the scattering of monochromatic planar scalar waves in a geometry that interpolates between the Schwarzschild solution, regular black holes and traversable wormhole spacetimes. We employ the partial waves approach to compute the differential scattering cross section of the regular black hole, as well as of the wormhole solutions. We compare our full numerical results with the classical geodesic scattering and the glory approximation, obtaining excellent agreement in the appropriate regime of validity of such approximations. We obtain that the differential scattering cross section for the regular black hole case is similar to the Schwarzschild result. Notwithstanding, the results for wormholes can be very distinctive from the black hole ones. In particular, we show that the differential scattering cross section for wormholes considerably decreases at large scattering angles for resonant frequencies.
Bayesian Optimization of 2D Echocardiography Segmentation
Creators: name: Tran, Son-Tung
name: Stough, Joshua V.
name: Zhang, Xiaoyan
name: Haggerty, Christopher M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Optimization and Control (math.OC)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Bayesian Optimization (BO) is a well-studied hyperparameter tuning technique that is more efficient than grid search for high-cost, high-parameter machine learning problems. Echocardiography is a ubiquitous modality for evaluating heart structure and function in cardiology. In this work, we use BO to optimize the architectural and training-related hyperparameters of a previously published deep fully convolutional neural network model for multi-structure segmentation in echocardiography. In a fair comparison, the resulting model outperforms this recent state-of-the-art on the annotated CAMUS dataset in both apical two- and four-chamber echo views. We report mean Dice overlaps of 0.95, 0.96, and 0.93 on left ventricular (LV) endocardium, LV epicardium, and left atrium respectively. We also observe significant improvement in derived clinical indices, including smaller median absolute errors for LV end-diastolic volume (4.9mL vs. 6.7), end-systolic volume (3.1mL vs. 5.2), and ejection fraction (2.6% vs. 3.7); and much tighter limits of agreement, which were already within inter-rater variability for non-contrast echo. These results demonstrate the benefits of BO for echocardiography segmentation over a recent state-of-the-art framework, although validation using large-scale independent clinical data is required.
Estado social de derecho y daño sacrificial
Creators: name: Rodríguez Fernández, Ignacio
Publisher: name: P.A. Persona e Amministrazione
Year: 2018

description: RESUMEN

El daño sacrificial, como daño causado en el ámbito protegido por un derecho
individual para obtener una utilidad colectiva, es un instituto que materializa el
conflicto histórico y conceptual entre las cláusulas de Estado de Derecho y de
Estado social. La idea de “Estado social y democrático de Derecho” exige, no
obstante, hallar soluciones que satisfagan la dimensión social de la
Constitución sin merma alguna de la consideración del individuo como fin en
sí mismo, lo que, aplicado al fenómeno sacrificial, demanda un tratamiento
jurídico que, más allá de la utilización de una técnica ponderativa idónea,
indague en el papel que juega la indemnización como distribución equitativa
del coste del bien común.

Sacrificial damage, as damage caused in the protected sphere of individual
rights in order to achieve objectives of common interest, is an institution that
materializes the historical and conceptual conflict that may arise between Rule
of Law and Social State clauses. However, the idea of “Social State under the
Rule of Law” requires the fulfillment of the social dimension of the Constitution
without impairing the value of the individual as an end in him or herself.
In relation to the sacrificial damage, this entails that, beyond any weighting
technique, the compensation can be required as equal distribution of the cost
of the common good.

PALABRAS CLAVE: daño sacrificial, expropiación forzosa, equidistribución.
KEYWORDS: sacrificial damage, eminent domain, equal distribution.
description: P.A. Persona e Amministrazione, N. 2 (2018)
A model capturing novel strand symmetries in bacterial DNA
Creators: name: Sobottka, Marcelo
name: Hart, Andrew G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Chargaff's second parity rule for short oligonucleotides states that the frequency of any short nucleotide sequence on a strand is approximately equal to the frequency of its reverse complement on the same strand. Recent studies have shown that, with the exception of organellar DNA, this parity rule generally holds for double stranded DNA genomes and fails to hold for single-stranded genomes. While Chargaff's first parity rule is fully explained by the Watson-Crick pairing in the DNA double helix, a definitive explanation for the second parity rule has not yet been determined. In this work, we propose a model based on a hidden Markov process for approximating the distributional structure of primitive DNA sequences. Then, we use the model to provide another possible theoretical explanation for Chargaff's second parity rule, and to predict novel distributional aspects of bacterial DNA sequences.
description: This is a pre-copy-editing, author-produced preprint of an article accepted for publication in Biochemical and Biophysical Research Communications. The definitive publisher-authenticated version is available online at: http://dx.doi.org/10.1016/j.bbrc.2011.06.072 or http://www.sciencedirect.com/science/article/pii/S0006291X1101045X. 9 pages, 1 figure
A Comparison between Semi-Analytic Model Predictions for the CANDELS Survey
Creators: name: Lu, Yu
name: Wechsler, Risa H.
name: Somerville, Rachel S.
name: Croton, Darren
name: Porter, Lauren
name: Primack, Joel
name: Behroozi, Peter S.
name: Ferguson, Henry C.
name: Koo, David C.
name: Guo, Yicheng
name: Safarzadeh, Mohammadtaher
name: Finlator, Kristian
name: Castellano, Marco
name: White, Catherine E.
name: Sommariva, Veronica
name: Moody, Chris
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We compare the predictions of three independently developed semi-analytic galaxy formation models that are being used to aid in the interpretation of results from the CANDELS survey. These models are each applied to the same set of halo merger trees extracted from the "Bolshoi" simulation and are carefully tuned to match the local galaxy stellar mass function using the powerful method of Bayesian Inference coupled with MCMC or by hand. The comparisons reveal that in spite of the significantly different parameterizations for star formation and feedback processes, the three models yield qualitatively similar predictions for the assembly histories of galaxy stellar mass and star formation over cosmic time. We show that the SAMs generally require strong outflows to suppress star formation in low-mass halos to match the present day stellar mass function. However, all of the models considered produce predictions for the star formation rates and metallicities of low-mass galaxies that are inconsistent with existing data and diverge between the models. We suggest that large differences in the metallicity relations and small differences in the stellar mass assembly histories of model galaxies stem from different assumptions for the outflow mass-loading factor. Importantly, while more accurate observational measurements for stellar mass, SFR and metallicity of galaxies at 1
description: 29 pages, 14 figures, 1 table, submitted to ApJ
Thurii-Copia. Quattuorvir i.d. quinq. Pontifex. Maecia tribus. 31 BC - 14 AD
Creators: name: Cappelletti, Loredana
Publisher: name: Zenodo
Year: 2023
Subjects: Turi
Greek Colony
Latin Colony
Western Greeks
Latin Epigraphy
Ancient Italy

description: Publication concerning the Latin inscription AE 2006, 353 = EDR170771, with English and Italian translation and bibliography
Runaway massive stars as variable gamma-ray sources
Creators: name: del Valle, Maria V.
name: Romero, Gustavo E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Runaway stars are ejected from their formation sites well within molecular cores in giant dark clouds. Eventually, these stars can travel through the molecular clouds, which are highly inhomogeneous. The powerful winds of massive runaway stars interact with the medium forming bowshocks. Recent observations and theoretical modelling suggest that these bowshocks emit non-thermal radiation. As the massive stars move through the inhomogeneous ambient gas the physical properties of the bowshocks are modified, producing changes in the non-thermal emission. We aim to compute the non-thermal radiation produced in the bowshocks of runaway massive stars when travelling through a molecular cloud. We calculate the non-thermal emission and absorption for two types of massive runaway stars, an O9I and an O4I, as they move through a density gradient. We present the spectral energy distributions for the runaway stars modelled. Additionally, we obtain light curves at different energy ranges. We find significant variations in the emission over timescales of $\sim$ 1 yr. We conclude that bowshocks of massive runaway stars, under some assumptions, might be variable gamma-ray sources, with variability timescales that depend on the medium density profile. These objects might constitute a population of galactic gamma-ray sources turning on and off within years.
description: 10 pages, 13 figures, accepted for publication in Astronomy & Astrophysics
On Schwinger's formula for pair production
Creators: name: Dittrich, Walter
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present some comments on Schwinger's calculation of electron-positron production in a prescribed constant electric field. The range of validity of 2 Im \mathcal{L}^(1)(E) is discussed thoroughly and limiting cases are provided.
Audio Anti-spoofing Using a Simple Attention Module and Joint Optimization Based on Additive Angular Margin Loss and Meta-learning
Creators: name: Wang, Zhenyu
name: Hansen, John H. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Sound (cs.SD)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Automatic speaker verification systems are vulnerable to a variety of access threats, prompting research into the formulation of effective spoofing detection systems to act as a gate to filter out such spoofing attacks. This study introduces a simple attention module to infer 3-dim attention weights for the feature map in a convolutional layer, which then optimizes an energy function to determine each neuron's importance. With the advancement of both voice conversion and speech synthesis technologies, unseen spoofing attacks are constantly emerging to limit spoofing detection system performance. Here, we propose a joint optimization approach based on the weighted additive angular margin loss for binary classification, with a meta-learning training framework to develop an efficient system that is robust to a wide range of spoofing attacks for model generalization enhancement. As a result, when compared to current state-of-the-art systems, our proposed approach delivers a competitive result with a pooled EER of 0.99% and min t-DCF of 0.0289.
description: Interspeech 2022
Communicability reveals a transition to coordinated behavior in multiplex networks
Creators: name: Estrada, Ernesto
name: Gomez-Gardenes, Jesus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We analyse the flow of information in multiplex networks by means of the communicability function. First, we generalize this measure from its definition from simple graphs to multiplex networks. Then, we study its relevance for the analysis of real-world systems by studying a social multiplex where information flows using formal/informal channels and an air transportation system where the layers represent different air companies. Accordingly, the communicability, which is essential for the good performance of these complex systems, emerges at a systemic operation point in the multiplex where the performance of the layers operates in a coordinated way very differently from the state represented by a collection of unconnected networks.
description: 5 pages, 2 figures, 3 tables
Joint spectra of representations of Lie algebras by compact operators
Creators: name: Boasso, Enrico
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 47A13, 47A10, Secondary 17B15, 17B55

description: Given $X$ a complex Banach space, $L$ a complex nilpotent finite dimensional Lie algebra, and $ρ\colon L\to L(X)$, a representation of $L$ in $X$ such that $ρ(l)\in K(X)$ for all $l\in L$, the Taylor, the Slodkowski, the Fredholm, the split and the Fredholm split joint spectra of the representation $ρ$ are computed.
description: 8 pages, original research article
L’analogia “occultata” e l’analogia “negata”: spunti giurisprudenziali per l’analisi del ragionamento analogico
Creators: name: Velluzzi, Vito
Publisher: name: P.A. Persona e Amministrazione
Year: 2018

description: L’articolo tratta alcuni aspetti dell’analogia giuridica. In particolare muove da due casi evidenziando i problemi posti dal ragionamento giuridico seguito dai giudici.

Dealing with doctrine of analogy, the paper point out theoretical problem, moving from concrete case studies taken from Italian and UC case law

Indice: 1. Un esempio di analogia occultata – 2. Un esempio di analogia negata – 3. Il ragionamento analogico nel diritto: aspetti essenziali – 4. I problemi dell’occultamento e i problemi della negazione.
description: P.A. Persona e Amministrazione, N. 2 (2018)
Référentiel des métadonnées EMERGEN
Creators: name: Salgado, David
name: Castro Alvarez, Javier
name: Bozorgan, Anne
name: Denecker, Thomas
name: Messak, Imane
name: Mohamed, Anliat
name: Josset, Laurence
name: Lina, Bruno
name: Enouf, Vincent
name: Van Der Werf, Sylvie
name: Coignard, Bruno
name: van Helden, Jacques
Publisher: name: Zenodo
Year: 2022
Subjects: SARS-CoV-2
COVID-19
Data standards

description: Référentiel des métadonnées d'EMERGEN, projet national de surveillance génomique et de recherche concernant le COVID-19.  Ce document fournit une description détaillée de chacun des champs de métadonnées collectées à différents niveaux du flux des données : laboratoires préleveurs, laboratoires séquenceurs, plateforme bioinformatique. Il sert de trame pour générer les fichiers modèles utilisés pour la saisie de ces métadonnées. Metadata specification for EMERGEN, a national genomic surveillance and research project on COVID-19.  This document provides a detailed description of each metadata field collected at different levels of the data flow: sampling laboratories, sequencing laboratories, bioinformatics platform. It serves as a framework to generate the template files used for the capture of these metadata.
Thermodynamical asymmetries in whirling, jumping and walking
Creators: name: Güémez, Julio
name: Fiolhais, Manuel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We analyze, from the thermodynamical point of view, mechanical systems in which there is production of mechanical energy due to an internal source of energy, and compare that analysis with the similar one for the "symmetric" motion which occurs with energy dissipation. The analysis of the energetic asymmetries is instructive to put in evidence the role of thermodynamics even in the discussion of mechanical aspects. We illustrate the discussion with the well known example of a person on a rotating platform outstretching and contracting his/her arms, and also with other common situations such as jumping and walking.
description: 11 pages, 3 figures. arXiv admin note: text overlap with arXiv:1402.1857
CHARTER: Identifying the Most-Critical Gate Operations in Quantum Circuits via Amplified Gate Reversibility
Creators: name: Patel, Tirthak
name: Silver, Daniel
name: Tiwari, Devesh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: When quantum programs are executed on noisy intermediate-scale quantum (NISQ) computers, they experience hardware noise; consequently, the program outputs are often erroneous. To mitigate the adverse effects of hardware noise, it is necessary to understand the effect of hardware noise on the program output and more fundamentally, understand the impact of hardware noise on specific regions within a quantum program. Identifying and optimizing regions that are more noise-sensitive is the key to expanding the capabilities of NISQ computers. Toward achieving that goal, we propose CHARTER, a novel technique to pinpoint specific gates and regions within a quantum program that are the most affected by the hardware noise and that have the highest impact on the program output. Using CHARTER's methodology, programmers can obtain a precise understanding of how different components of their code affect the output and optimize those components without the need for non-scalable quantum simulation on classical computers.
description: This worked was published in SC'22
Unzipping of DNA under the influence of external fields
Creators: name: Bergues-Pupo, A. E.
name: Bergues, J. M.
name: Falo, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the features on the unzipping process of a modified version of the Peyrard-Bishop- Dauxois model. We show that the inclusion of a barrier in the on-site potential allows for the existence of stable domain wall solutions between open and closed regions of the DNA chain. We analyze the linear stability of such solutions and study their relevance in the dynamical behavior of DNA under ac forces.
description: 17 pages, 9 figures
The continuum intensity as a function of magnetic field II. Local magnetic flux and convective flows
Creators: name: Kobel, P.
name: Solanki, S. K.
name: Borrero, J. M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: To deepen our understanding of the role of small-scale magnetic fields in active regions (ARs) and in the quiet Sun (QS) on the solar irradiance, it is fundamental to investigate the physical processes underlying their continuum brightness. Previous results showed that magnetic elements in the QS reach larger continuum intensities than in ARs at disk center, but left this difference unexplained. We use Hinode/SP disk center data to study the influence of the local amount of magnetic flux on the vigour of the convective flows and the continuum intensity contrasts. The apparent (i.e. averaged over a pixel) longitudinal field strength and line-of-sight (LOS) plasma velocity were retrieved by means of Milne-Eddington inversions (VFISV code). We analyzed a series of boxes taken over AR plages and the QS, to determine how the continuum intensity contrast of magnetic elements, the amplitude of the vertical flows and the box-averaged contrast were affected by the mean longitudinal field strength in the box (which scales with the total unsigned flux in the box). Our results suggest that as the magnetic flux increases locally (e.g. from weak network to strong plage), the heating of the magnetic elements is reduced by the intermediate of a more suppressed convective energy transport within the larger and stronger magnetic patches. This, together with the known presence of larger magnetic features, could explain the previously found lower contrasts of the brightest magnetic elements in ARs compared to the QS. The inhibition of convection also affects the average continuum brightness of a photospheric region, so that at disk center, an area of photosphere in strong network or plage appears darker than a purely quiet one. This is qualitatively consistent with the predictions of 3D MHD simulations.
Fractional quantum Hall valley ferromagnetism in the extreme quantum limit
Creators: name: Hossain, Md. Shafayat
name: Ma, M. K.
name: Chung, Y. J.
name: Singh, S. K.
name: Gupta, A.
name: Pfeiffer, L. N.
name: West, K. W.
name: Baldwin, K. W.
name: Winkler, R.
name: Shayegan, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Electrons' multiple quantum degrees of freedom can lead to rich physics, including a competition between various exotic ground states, as well as novel applications such as spintronics and valleytronics. Here we report magneto-transport experiments demonstrating how the valley degree of freedom impacts the fractional quantum states (FQHSs), and the related magnetic-flux-electron composite fermions (CFs), at very high magnetic fields in the extreme quantum limit when only the lowest Landau level is occupied. Unlike in other multivalley two-dimensional electron systems such as Si or monolayer graphene and transition-metal dichalcogenides, in our AlAs sample we can continuously tune the valley polarization via the application of in-situ strain. We find that the FQHSs remain exceptionally strong even as they make valley polarization transitions, revealing a surprisingly robust ferromagnetism of the FQHSs and the underlying CFs. Our observation implies that the CFs are strongly interacting in our system. We are also able to obtain a phase diagram for the FQHS and CF valley polarization in the extreme quantum limit as we monitor transitions of the FHQSs with different valley polarizations.
Trigonometric Parallaxes for 1,507 Nearby Mid-to-Late M-dwarfs
Creators: name: Dittmann, Jason A.
name: Irwin, Jonathan M.
name: Charbonneau, David
name: Berta-Thompson, Zachory K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The MEarth survey is a search for small rocky planets around the smallest, nearest stars to the Sun as identified by high proper motion with red colors. We augmented our planetary search time series with lower cadence astrometric imaging and obtained two million images of approximately 1800 stars suspected to be mid-to-late M dwarfs. We fit an astrometric model to MEarth's images for 1507 stars and obtained trigonometric distance measurements to each star with an average precision of 5 milliarcseconds. Our measurements, combined with the 2MASS photometry, allowed us to obtain an absolute K_s magnitude for each star. In turn, this allows us to better estimate the stellar parameters than those obtained with photometric estimates alone and to better prioritize the targets chosen to monitor at high cadence for planetary transits. The MEarth sample is mostly complete out to a distance of 25 parsecs for stars of type M5.5V and earlier, and mostly complete for later type stars out to 20 parsecs. We find eight stars that are within ten parsecs of the Sun for which there did not exist a published trigonometric parallax distance estimate. We release with this work a catalog of the trigonometric parallax measurements for 1,507 mid-to-late M-dwarfs, as well as new estimates of their masses and radii.
description: ApJ, accepted. 36 pages, 8 figures, 2 tables. Please find our data table here: http://www.cfa.harvard.edu/MEarth/DataDR2.html
Structural heterogeneity and its role in determining properties of disordered solids
Creators: name: Tong, Hua
name: Xu, Ning
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We construct a new order parameter from the normal modes of vibration, based on the consideration of energy equipartition, to quantify the structural heterogeneity in disordered solids. The order parameter exhibits strong spatial correlations with low-temperature single particle dynamics and local structural entropy. To characterize the role of particles with the most defective local structures identified by the order parameter, we pin them and study how properties of disordered solids respond to the pinning. It turns out that these particles are responsible to the quasilocalized low-frequency vibration, instability, softening, and nonaffinity of disordered solids.
description: 5 pages, 4 figures
Multi-source Domain Adaptation for Text-independent Forensic Speaker Recognition
Creators: name: Wang, Zhenyu
name: Hansen, John H. L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Sound (cs.SD)
subject: Artificial Intelligence (cs.AI)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Adapting speaker recognition systems to new environments is a widely-used technique to improve a well-performing model learned from large-scale data towards a task-specific small-scale data scenarios. However, previous studies focus on single domain adaptation, which neglects a more practical scenario where training data are collected from multiple acoustic domains needed in forensic scenarios. Audio analysis for forensic speaker recognition offers unique challenges in model training with multi-domain training data due to location/scenario uncertainty and diversity mismatch between reference and naturalistic field recordings. It is also difficult to directly employ small-scale domain-specific data to train complex neural network architectures due to domain mismatch and performance loss. Fine-tuning is a commonly-used method for adaptation in order to retrain the model with weights initialized from a well-trained model. Alternatively, in this study, three novel adaptation methods based on domain adversarial training, discrepancy minimization, and moment-matching approaches are proposed to further promote adaptation performance across multiple acoustic domains. A comprehensive set of experiments are conducted to demonstrate that: 1) diverse acoustic environments do impact speaker recognition performance, which could advance research in audio forensics, 2) domain adversarial training learns the discriminative features which are also invariant to shifts between domains, 3) discrepancy-minimizing adaptation achieves effective performance simultaneously across multiple acoustic domains, and 4) moment-matching adaptation along with dynamic distribution alignment also significantly promotes speaker recognition performance on each domain, especially for the LENA-field domain with noise compared to all other systems.
description: IEEE/ACM TRANSACTIONS ON AUDIO, SPEECH, AND LANGUAGE PROCESSING
Obras completas de Rubén Darío Vol. III
Creators: name: Darío, Rubén
name: Bentivegna, Diego
Publisher: name: Zenodo
Year: 2023
Subjects: Rubén Darío
La vida de Rubén Darío escrita por él mismo
El oro de Mallorca
Historia de mis libros

description: The Universidad Nacional de Tres de Febrero presents a new edition of the complete works of Rubén Darío in ten volumes. of Rubén Darío in ten volumes, each one of them divided into a variable number of volumes. By making available to the public the texts of one of Latin America's most important literary figures in authoritative and annotated versions, the University aims to enrich the public University aims to enrich the field of contemporary cultural debates. contemporary cultural debates. Furthermore, in a commitment to democratic access to the writings of the first Latin American poet of worldwide renown, the Works are complemented by the Rubén Darío Ordered and Centralised Archive (AR.DOC-UNTREF), a digital repository open to the the community that gathers Darío's documents documents scattered in archives all over the world.
Adiabatic model of $(d,p)$ reactions with explicitly energy-dependent non-local potentials
Creators: name: Johnson, R. C.
name: Timofeyuk, N. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We have developed an approximate way of dealing with explicit energy-dependence of non-local nucleon optical potentials as used to predict the $(d,p)$ cross sections within the adiabatic theory. Within this approximation, the non-local optical potentials have to be evaluated at an energy shifted from half the incident deuteron energy by the $n-p$ kinetic energy averaged over the range of the $n-p$ interaction and then treated as an energy-independent non-local potential. Thus the evaluation of the distorting potential in the incident channel is reduced to a problem solved in our previous work in [{\it Phys. Rev. Lett. 110, 112501(2013) and Phys. Rev. C 87, 064610 (2013)}]. We have demonstrated how our new model works for the case of $^{16}$O$(d,p)^{17}$O, $^{36}$Ar($d,p)^{37}$Ar and $^{40}$Ca$(d,p)^{41}$Ca reactions and highlighted the need for a detailed understanding of energy-dependence of non-local potentials. We have also suggested a simple way of correcting the $d-A$ effective potentials for non-locality when the underlying energy-dependent non-local nucleon potentials are unknown but energy-dependent local phenomenological nucleon potentials are available.
description: 15 pages, 2 figures, accepted in Phys. Rev. C
A Council of Giants
Creators: name: McCall, Marshall L.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It is demonstrated that the Local Sheet is both geometrically and dynamically distinct from the Local Supercluster and that the evolution of the Sheet and Local Group were probably interconnected. The Sheet is inclined by 8 degrees with respect to the Local Supercluster, and the dispersion of giant members about the mid-plane is only 230 kpc. A "Council of Giants" with a radius of 3.75 Mpc encompasses the Local Group, demarcating a clear upper limit to the realm of influence of the Local Group. The only two giant elliptical galaxies in the Sheet sit on opposite sides of the Council, raising the possibility that they have somehow shepherded the evolution of the Local Group. The position vector of the Andromeda galaxy with respect to the Milky Way deviates only 11 degrees from the Sheet plane and only 11 degrees from the projected axis of the ellipticals. The Local Group appears to be moving away from a ridge in the potential surface of the Council on a path parallel to the elliptical axis. Spin directions of the giants in the Council are distributed over the sky in a pattern which is very different from that of giants beyond, possibly in reaction to the central mass asymmetry that developed into the Local Group. By matching matter densities of Group and Council giants, the edge of the volume of space most likely to have contributed to the development of the Local Group is shown to be very close to where gravitational forces from the Local Group and the Council balance. The boundary specification reveals that the Local Sheet formed out of a density perturbation of very low amplitude (~10%), but that normal matter was incorporated into galaxies with relatively high efficiency (~40%). It appears that the development of the giants of the Local Sheet was guided by a pre-existing flattened framework of matter.
description: 26 pages, 6 figures, 5 tables. MNRAS (2014), Advance Access. First published online: March 10, 2014
Harmonic generation and filamentation: when secondary radiations have primary consequences
Creators: name: Béjot, P.
name: Karras, G.
name: Billard, F.
name: Hertz, E.
name: Lavorel, B.
name: Cormier, E.
name: Faucher, O.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: In this Letter, it is experimentally and theoretically shown that weak odd harmonics generated during the propagation of an infrared ultrashort ultra-intense pulse unexpectedly modify the nonlinear properties of the medium and lead to a strong modification of the propagation dynamics. This result is in contrast with all current state-of-the-art propagation model predictions, in which secondary radiations, such as third harmonic, are expected to have a negligible action upon the fundamental pulse propagation. By analysing full three-dimensional ab initio quantum calculations describing the microscopic atomic optical response, we have identified a fundamental mechanism resulting from interferences between a direct ionization channel and a channel involving one single ultraviolet photon. This mechanism is responsible for wide refractive index modifications in relation with significant variation of the ionization rate. This work paves the way to the full physical understanding of the filamentation mechanism and could lead to unexplored phenomena, such as coherent control of the filamentation by harmonic seeding.
description: 7 pages, 5 figures
Emergent quantum mechanics of finances
Creators: name: Nastasiuk, Vadim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Finance (q-fin.ST)
subject: FOS: Economics and business

description: This paper is an attempt at understanding the quantum-like dynamics of financial markets in terms of non-differentiable price-time continuum having fractal properties. The main steps of this development are the statistical scaling, the non-differentiability hypothesis, and the equations of motion entailed by this hypothesis. From perspective of the proposed theory the dynamics of S&P500 index are analyzed.
description: 9 pages, 3 figures
Inertial Force Transmission in Dense Granular Flows
Creators: name: Macaulay, Matthew
name: Rognon, Pierre
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences
subject: 74-10

description: Dense granular flows are well described by several continuum models, however, their internal dynamics remain elusive. This study explores the contact force distributions in simulated steady and homogenous shear flows. Results demonstrate the existence of high magnitude contact forces in faster flows with stiffer grains. A proposed physical mechanism explains this rate-dependent force transmission. This analysis establishes a relation between contact forces and grain velocities, providing an entry point to unify a range of continuum models derived from either contact forces or grain velocity.
Thünen-Baseline 2020 – 2030: Agrarökonomische Projektionen für Deutschland
Creators: name: Haß, Marlen
name: Banse, Martin
name: Deblitz, Claus
name: Freund, Florian
name: Geibel, Inna
name: Gocht, Alexander
name: Kreins, Peter
name: Laquai, Verena
name: Offermann, Frank
name: Osterburg, Bernhard
name: Pelikan, Janine
name: Rieger, Jörg
name: Rösemann, Claus
name: Salamon, Petra
name: Zinnbauer, Maximilian
name: Zirngibl, Max-Emanuel
name: Haß, Marlen
name: Banse, Martin
name: Deblitz, Claus
name: Freund, Florian
name: Geibel, Inna
name: Gocht, Alexander
name: Kreins, Peter
name: Laquai, Verena
name: Offermann, Frank
name: Osterburg, Bernhard
name: Pelikan, Janine
name: Rieger, Jörg
name: Rösemann, Claus
name: Salamon, Petra
name: Zinnbauer, Maximilian
name: Zirngibl, Max-Emanuel
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: Agrarpolitik
subject: Politikfolgenabschätzung
subject: Modell
subject: Modellverbund
subject: agricultural policy
subject: impact assessment
subject: model
subject: model network

description: This report presents selected results of the Thünen-Baseline 2020-2030 as well as the assumptions underlying the projections. The Thünen-Baseline describes the expected developments of agricultural markets under given macro-economic conditions assuming no change in the current policy framework. Projections are based on the data and information available in February 2020. The report includes projection results on agricultural trade, prices, demand, production, income and environmental effects. The presentation of the results focuses mainly on the developments of the German agricultural sector up to the year 2030 compared to the average of the base period 2017-2019. With regard to the crops sector results show that oilseed cultivation is likely to be expanded by 2030. This is because the oilseed sector becomes more competitive relative to grains driven by a stronger increase in yields as well as prices. For the meat sector, higher environmental and animal welfare standards suggest that the growth in production observed over the past decades is likely to slow down, especially in the pigmeat sector, while poultry meat production is expected to still grow slightly over the projection period. Furthermore, stable milk prices and dairy herd populations combined with a further increase in milk yield are likely to result in a moderate increase in milk deliveries over the projection period. The average real income of agricultural farms is expected to decline slightly over the projection period. However, in 2030 agricultural farms still achieve an income equal to the average level observed over the last ten years.
description: DOI:10.3220/REP1601889632000
Geometric Origin of Pair Production by Electric Field in de Sitter Space
Creators: name: Kim, Sang Pyo
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The particle production in a de Sitter space provides an interesting model to understand the curvature effect on Schwinger pair production by a constant electric field or Schwinger mechanism on the de Sitter radiation. For that purpose, we employ the recently introduced complex analysis method, in which the quantum evolution in the complex time explains the pair production via the geometric transition amplitude and gives the pair-production rate as the contour integral. We compare the result by the contour integral with that of the phase-integral method.
description: LaTex 4 pages, Invited talk at ICGAC11, Almaty, Kazakhstan, October 1-5, 2013
A Metamathematical Approach to the Susceptible-Infected-Recovered (SIR) Model: The Case of the Hong Kong Flu in New York City
Creators: name: Paraskevopoulos, Athanasios
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 490102
subject: Biological mathematics
classificationCode: 490105
subject: Dynamical systems in applications

description: This study employs a metamathematical lens to analyze the Susceptible-Infected-Recovered (SIR) model, applying this model to the case of the Hong Kong flu that struck New York City in the late 1960s. It offers innovative insights into disease progression and peak infection rates and explores the philosophical and ethical dimensions of applying such models. By dissecting the SIR model from these angles, this paper highlights the model's capabilities and limitations, enriching the ongoing discussion about its utility in managing infectious diseases.