cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Studio di Architetture e Protocolli per Reti Ottiche
Creators: name: R. Cucchi
name: A. Ghiselli
name: C. Raffaelli
name: C. Vistoli
Publisher: name: INFN Open Access Repository
Year: 1999

description: Le reti ottiche basate sulla tecnologia WDM (Wavelength Division Multiplexing) sono molto promettenti per rispondere non solo alle esigenze di capacità trasmissiva ma anche per la realizzazione di reti costituite da apparati esclusivamente ottici dove la lunghezza d'onda rappresenta il circuito di comunicazione fra nodo sorgente e nodo destinatario.Questo documento prende in esame il "trigger di II livello dell'esperimento ATLAS come case study", ne analizza le esigenze di trasmissione dei dati e descrive uno studio di fattibilità basato su una rete ottica a stella.
title: Multivariate trace estimation in constant quantum depth
Creators: name: Quek, Yihui
name: Kaur, Eneet
name: Wilde, Mark M.
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Quantum circuits
subject: Quantum information theory
subject: Shor error correction
classificationCode: 539
subject: Moderne Physik

description: There is a folkloric belief that a depth-Θ(m) quantum circuit is needed to estimate the trace of the product of m density matrices (i.e., a multivariate trace), a subroutine crucial to applications in condensed matter and quantum information science. We prove that this belief is overly conservative by constructing a constant quantum-depth circuit for the task, inspired by the method of Shor error correction. Furthermore, our circuit demands only local gates in a two dimensional circuit – we show how to implement it in a highly parallelized way on an architecture similar to that of Google's Sycamore processor. With these features, our algorithm brings the central task of multivariate trace estimation closer to the capabilities of near-term quantum processors. We instantiate the latter application with a theorem on estimating nonlinear functions of quantum states with "well-behaved" polynomial approximations.
Decodificador de 2 a 4 - Circuitos combinacionales
Creators: name: Machado, Felipe
Publisher: name: Zenodo
Year: 2020
Subjects: Electrónica digital
Bloques combinacionales
Puertas lógicas

description: Presentación de clase sobre el decodificador de 2 a 4 con habilitación. Fundamentos de electrónica digital Video de la presentación disponible: https://youtu.be/OI_f3MdsHjM La presentación siguiente del decodificador de 3 a 8 está disponible: https://doi.org/10.5281/zenodo.3712713
description: {"references": ["Machado, F., 2011. Problemas resueltos de electr\u00f3nica digital. https://eciencia.urjc.es/handle/10115/5727"]}
Sistemi Storage su Disco Utilizzati al TIER1 CNAF
Creators: name: Ricci Pier Paolo
name: Zani, Stefano
Publisher: name: INFN Open Access Repository
Year: 2003

description: Il presente articolo si presenta come una descrizione introduttiva dei vari apparati di stoccaggio dati su disco attualmente in produzione all'INFN TIER1 presso il CNAF di Bologna. Per ogni apparato presente sia una descrizione tecnica dell'hardware sia una serie di note sul sistema software di management,configurazione e monitoraggio. Inoltre sono stati riportati per ogni apparato una serie preliminare puramente indicativa di risultati di performance di accesso sequenziale al disco oltre ad una descrizione generale del sistema di storage disco del TIER1 visto nella sua globalità
Reducing Road Vehicle Fuel Consumption by Exploiting Connectivity and Automation: A Literature Survey
Creators: name: Alvarez, Miguel
name: Xu, Chu
name: Rodriguez, Manuel A.
name: Al-Mamun, Abdullah
name: Wahba, Mohamed
name: Brennan, Sean
name: Fathy, Hosam K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper examines the degree to which connectivity and automation can potentially reduce the overall fuel consumption of on-road vehicles. The paper begins with a simulation study highlighting the tradeoff between: (i) the fuel that a vehicle can save through speed trajectory shaping, versus (ii) the additional inter-vehicle spacing needed for this trajectory shaping to be feasible. This study shows that connectivity and automation are essential, rather than merely useful, for substantial reductions in the fuel consumed by fixed on-road vehicle powertrain/chassis configurations in traffic. Motivated by this insight, we survey the literature on the fuel savings achievable through different connected/automated vehicle technologies. This includes optimal vehicle routing, eco-arrival/departure at intersections, platooning, speed trajectory optimization, predictive driveline disengagement, predictive gear shifting, and predictive powertrain accessory control. This survey shows that the ability to shape vehicle speed trajectories collaboratively plays a dominant role in reducing urban/suburban fuel consumption, while platooning plays a dominant role in influencing the attainable fuel savings on the highway. Moreover, the survey shows that the degree to which connectivity/automation can reduce on-road vehicle fuel consumption, in both urban/suburban and highway settings, depends critically on the integration of powertrain- and chassis-level control.
Progetto QUADIS (Qualità di Servizio)
Creators: name: T. Ferrari
name: A. Ghiselli
name: C. Vistoli
Publisher: name: INFN Open Access Repository
Year: 1999

description: Le applicazioni distribuite di nuova generazione richiedono servizi di rete garantiti. La rete Internet fornisce tuttora un servizio di tipo "best effort"e perciò non adatto a soddisfare le nuove esigenze che provengono dalle applicazioni. E' necessario studiare nuove architetture che facciano interagire applicazioni e rete in modo più stretto per ottenere più garanzie di affidabilità ed efficienza. Questo documento introduce i concetti base della qualità di servizio sulla rete e i meccanismi in fase di studio o di sperimentazione finora esistenti. Definisce inoltre un programma di lavoro che prevede l'analisi di alcune applicazioni specifiche dell'NFN e la sperimentazione di servizi di rete QoS adatti all'applicazione in esame. Questo documento è allegato al progetto "QUAdiS" di Gruppo V.
Induced matter: Curved N-manifolds encapsulated in Riemann-flat N+1 dimensional space
Creators: name: Ringermacher, Harry I.
name: Mead, Lawrence R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Liko and Wesson have recently introduced a new 5-dimensional induced matter solution of the Einstein equations, a negative curvature Robertson-Walker space embedded in a Riemann flat 5-dimensional manifold. We show that this solution is a special case of a more general theorem prescribing the structure of certain N+1-dimensional Riemann flat spaces which are all solutions of the Einstein equations. These solutions encapsulate N-dimensional curved manifolds. Such spaces are said to "induce matter" in the sub-manifolds by virtue of their geometric structure alone. We prove that the N-manifold can be any maximally symmetric space.
description: 3 pages
MPEC 2024-T216 : 2024 TD7
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 TD7

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
A construction of semisimple tensor categories
Creators: name: Knop, Friedrich
Publisher: name: arXiv
Year: 2006
Subjects: subject: Category Theory (math.CT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 18B10; 18D10; 20G05

description: Starting from an abelian category A such that every object has only finitely many subobjects we construct a semisimple tensor category T. We show that T interpolates the categories Rep(Aut(p),K) where p runs through certain projective (pro-)objects of A. The main example is A=finite dimensional F_q-vector spaces. Then T can be considered as the category of representations of GL(n,F_q) where n is not a natural number. This work extends a construction of Deligne for symmetric groups.
description: v1: 6 pages; v2: 6 pages, slightly shortened, minor changes
Constraining Teleparallel Gravity through Gaussian Processes
Creators: name: Briffa, Rebecca
name: Capozziello, Salvatore
name: Said, Jackson Levi
name: Mifsud, Jurgen
name: Saridakis, Emmanuel N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We apply Gaussian processes (GP) in order to impose constraints on teleparallel gravity and its $f(T)$ extensions. We use available $H(z)$ observations from (i) cosmic chronometers data (CC); (ii) Supernova Type Ia (SN) data from the compressed Pantheon release together with the CANDELS and CLASH Multi-Cycle Treasury programs; and (iii) baryonic acoustic oscillation (BAO) datasets from the Sloan Digital Sky Survey. For the involved covariance functions, we consider four widely used choices, namely the square exponential, Cauchy, Matérn and rational quadratic kernels, which are consistent with one another within 1$σ$ confidence levels. Specifically, we use the GP approach to reconstruct a model-independent determination of the Hubble constant $H_0$, for each of these kernels and dataset combinations. These analyses are complemented with three recently announced literature values of $H_0$, namely (i) Riess $H_0^{\rm R} = 74.22 \pm 1.82 \,{\rm km\, s}^{-1} {\rm Mpc}^{-1}$; (ii) H0LiCOW Collaboration $H_0^{\rm HW} = 73.3^{+1.7}_{-1.8} \,{\rm km\, s}^{-1} {\rm Mpc}^{-1}$; and (iii) Carnegie-Chicago Hubble Program $H_0^{\rm TRGB} = 69.8 \pm 1.9 \,{\rm km\, s}^{-1} {\rm Mpc}^{-1}$. Additionally, we investigate the transition redshift between the decelerating and accelerating cosmological phases through the GP reconstructed deceleration parameter. Furthermore, we reconstruct the model-independent evolution of the dark energy equation of state, and finally reconstruct the allowed $f(T)$ functions. As a result, the $Λ$CDM model lies inside the allowed region at 1$σ$ in all the examined kernels and datasets, however a negative slope for $f(T)$ versus $T$ is slightly favored.
description: 36 pages, 16 figures
Realizzazione di un Mail Server su Trucluster con Software ASE
Creators: name: R. Gomezel
name: C. Strizzolo
name: L. Strizzolo
name: A. Tirel
Publisher: name: INFN Open Access Repository
Year: 2002

description: Questo documento descrive la realizzazione di un mail server, effettuata su un sistema proprietario con processore Alpha in configurazione TruCluster. La struttura, realizzata presso la Sezione di Trieste, utilizza il software ASE.
Chemical Compositions of Red Giant Stars from Habitable Zone Planet Finder Spectroscopy
Creators: name: Sneden, Christopher
name: Afsar, Melike
name: Bozkurt, Zeynep
name: Topcu, Gamze Bocek
name: Ozdemir, Sergen
name: Zeimann, Gregory R.
name: Froning, Cynthia S.
name: Mahadevan, Suvrath
name: Ninan, Joe P.
name: Bender, Chad F.
name: Terrien, Ryan
name: Ramsey, Lawrence W.
name: Lind, 9 Karin
name: Mace, Gregory N.
name: Kaplan, Kyle F.
name: Kim, Hwihyun
name: Hawkins, Keith
name: Bowler, Brendan P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have used the Habitable Zone Planet Finder (HPF) to gather high resolution, high signal-to-noise near-infrared spectra of 13 field red horizontal-branch (RHB) stars, one open-cluster giant, and one very metal-poor halo red giant. The HPF spectra cover the 0.81$-$1.28 \micron\ wavelength range of the $zyJ$ bands, filling in the gap between the optical (0.4$-$1.0~\micron) and infrared (1.5$-$2.4~\micron) spectra already available for the program stars. We derive abundances of 17 species from LTE-based computations involving equivalent widths and spectrum syntheses, and estimate abundance corrections for the species that are most affected by departures from LTE in RHB stars. Generally good agreement is found between HPF-based metallicities and abundance ratios and those from the optical and infrared spectral regions. Light element transitions dominate the HPF spectra of these red giants, and HPF data can be used to derive abundances from species with poor or no representation in optical spectra (\eg, \species{C}{i}, \species{P}{i}, \species{S}{i}, \species{K}{i}). Attention is drawn to the HPF abundances in two field solar-metallicity RHB stars of special interest: one with an extreme carbon isotope ratio, and one with a rare very large lithium content. The latter star is unique in our sample by exhibiting very strong \species{He}{i} 10830~Å absorption. The abundances of the open cluster giant concur with those derived from other wavelength regions. Detections of \species{C}{i} and \species{S}{i} in HD~122563 are reported, yielding the lowest metallicity determination of [S/Fe] from more than one multiplet.
description: Astronomical Journal, in press
Diseño de circuitos digitales con VHDL y FPGA. Circuitos combinacionales: Recomendaciones y reglas de diseño
Creators: name: Machado, Felipe
Publisher: name: Zenodo
Year: 2020
Subjects: VHDL
FPGA
Diseño digital
Circuitos combinacionales

description: Presentación de clase sobre recomendaciones y reglas para el diseño de circuitos digitales descritos en VHDL para su implementación en FPGA.
 Video de la presentación disponible: https://youtu.be/g0FnaDB3niE
description: {"references": ["Machado, F. and Borromeo, S., 2010. Dise\u00f1o de circuitos digitales con VHDL. http://hdl.handle.net/10115/4045", "Machado, F., Borromeo, S. and Rodr\u00edguez-S\u00e1nchez, M.C., 2011. Dise\u00f1o de sistemas digitales con VHDL. http://hdl.handle.net/10115/5700", "Machado, F., 2011. Problemas resueltos de electr\u00f3nica digital. https://eciencia.urjc.es/handle/10115/5727"]}
Bringing AI To Edge: From Deep Learning's Perspective
Creators: name: Liu, Di
name: Kong, Hao
name: Luo, Xiangzhong
name: Liu, Weichen
name: Subramaniam, Ravi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Edge computing and artificial intelligence (AI), especially deep learning for nowadays, are gradually intersecting to build a novel system, called edge intelligence. However, the development of edge intelligence systems encounters some challenges, and one of these challenges is the \textit{computational gap} between computation-intensive deep learning algorithms and less-capable edge systems. Due to the computational gap, many edge intelligence systems cannot meet the expected performance requirements. To bridge the gap, a plethora of deep learning techniques and optimization methods are proposed in the past years: light-weight deep learning models, network compression, and efficient neural architecture search. Although some reviews or surveys have partially covered this large body of literature, we lack a systematic and comprehensive review to discuss all aspects of these deep learning techniques which are critical for edge intelligence implementation. As various and diverse methods which are applicable to edge systems are proposed intensively, a holistic review would enable edge computing engineers and community to know the state-of-the-art deep learning techniques which are instrumental for edge intelligence and to facilitate the development of edge intelligence systems. This paper surveys the representative and latest deep learning techniques that are useful for edge intelligence systems, including hand-crafted models, model compression, hardware-aware neural architecture search and adaptive deep learning models. Finally, based on observations and simple experiments we conducted, we discuss some future directions.
Definitive Identification of the Transition between Small- to Large-Scale Clustering for Lyman Break Galaxies
Creators: name: Ouchi, M
name: Hamana, T.
name: Shimasaku, K.
name: Yamada, T.
name: Akiyama, M.
name: Kashikawa, N.
name: Yoshida, M.
name: Aoki, K.
name: Iye, M.
name: Saito, T.
name: Sasaki, T.
name: Simpson, C.
name: Yoshida, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report angular correlation function (ACF) of Lyman Break Galaxies (LBGs) with unprecedented statistical quality on the basis of 16,920 LBGs at z=4 detected in the 1 deg^2 sky of the Subaru/XMM-Newton Deep Field. The ACF significantly departs from a power law, and shows an excess on small scale. Particularly, the ACF of LBGs with i'<27.5 have a clear break between the small and large-scale regimes at the angular separation of ~7'' whose projected length corresponds to the virial radius of dark halos with a mass of 10^11-12 Mo, indicating multiple LBGs residing in a single dark halo. Both on small (2''
description: Accepted for publication in ApJL. 5 pages, 4 figures. The text and Figures 2-4 have been revised. There is no major change which affects to the main discussion shown in the original preprint. This paper with high resolution figures is available at http://www-int.stsci.edu/~ouchi/work/astroph/sxds_z4LBG/ouchi_highres.pdf (PDF)
Geração Cidadã de Dados e Mapas de Crime
Creators: name: Mattos da Costa, Camila
Publisher: name: Zenodo
Year: 2024

description: Apresentação realizada na sessão Comunicação III, da 15ª Conferência Lusófona de Ciência Aberta, na Escola Superior de Enfermagem do Porto (ESEP), de 01 a 04 de outubro de 2024.
Progress on band structure engineering of twisted bilayer and two-dimensional moiré heterostructures
Creators: name: Yao, Wei
name: Aeschlimann, Martin
name: Zhou, Shuyun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Artificially constructed van der Waals heterostructures (vdWHs) provide an ideal platform for realizing emerging quantum phenomena in condensed matter physics. Two methods for building vdWHs have been developed: stacking two-dimensional (2D) materials into a bilayer structure with different lattice constants, or with different orientations. The interlayer coupling stemming from commensurate or incommensurate superlattice pattern plays an important role in vdWHs for modulating the band structures and generating new electronic states. In this article, we review a series of novel quantum states discovered in two model vdWH systems -- graphene/hexagonal boron nitride (hBN) hetero-bilayer and twisted bilayer graphene (tBLG), and discuss how the electronic structures are modified by such stacking and twisting. We also provide perspectives for future studies on hetero-bilayer materials, from which an expansion of 2D material phase library is expected.
description: Submitted to Chin. Phys. B for Topical Review
title: Error-corrected quantum repeaters with Gottesman-Kitaev-Preskill qudits
Creators: name: Schmidt, Frank
name: Miller, Daniel
name: Van Loock, Peter
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Quantum communication
subject: Quantum error correction
classificationCode: 539
subject: Moderne Physik

description: The Gottesman-Kitaev-Preskill (GKP) code offers the possibility to encode higher-dimensional qudits into individual bosonic modes with, for instance, photonic excitations. Since photons enable the reliable transmission of quantum information over long distances and since GKP states subject to photon loss can be recovered to some extent, the GKP code has found recent applications in theoretical investigations of quantum communication protocols. While previous studies have primarily focused on GKP qubits, the possible practical benefits of higher-dimensional GKP qudits are hitherto widely unexplored. In this paper, we carry out performance analyses for three quantum repeater protocols based on GKP qudits including concatenations with a multiqudit quantum polynomial code. We find that the potential data transmission gains for qudits are often hampered by their decreased GKP error-correcting capabilities. However, we also identify parameter regimes in which having access to an increased number of quantum levels per mode can enhance the theoretically achievable secret-key rate of the quantum repeater. Some of our protocols share the attractive feature that local processing and complete error syndrome identification are realizable without online squeezing. Provided a supply of suitable multimode GKP states is available, this can be realized with a minimal set of passive linear optical operations, even when the logical qudits are composed of many physical qudits.
On Choptuik's scaling in higher dimensions
Creators: name: Sorkin, Evgeny
name: Oren, Yonatan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We extend Choptuik's scaling phenomenon found in general relativistic critical gravitational collapse of a massless scalar field to higher dimensions. We find that in the range 4 <= D <= 11 the behavior is qualitatively similar to that discovered by Choptuik. In each dimension we obtain numerically the universal numbers associated with the critical collapse: the scaling exponent gamma and the echoing period Delta. The behavior of these numbers with increasing dimension seems to indicate that gamma reaches a maximum and Delta a minimum value around 11 <= D <= 13. These results and their relation to the black hole--black string system are discussed.
description: 18 pages, 11 eps figures; v2: 2 refs added, improved discussions to match the published version
Nonradiative Energy Transfer between Thickness-Controlled Halide Perovskite Nanoplatelets
Creators: name: Singldinger, Andreas
name: Gramlich, Moritz
name: Gruber, Christoph
name: Lampe, Carola
name: Urban, Alexander S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Despite showing great promise for optoelectronics, the commercialization of halide perovskite nanostructure-based devices is hampered by inefficient electrical excitation and strong exciton binding energies. While transport of excitons in an energy-tailored system via Förster resonance energy transfer (FRET) could be an efficient alternative, halide ion migration makes the realization of cascaded structures difficult. Here, we show how these could be obtained by exploiting the pronounced quantum confinement effect in two dimensional CsPbBr3 based nanoplatelets (NPls). In thin films of NPls of two predetermined thicknesses, we observe an enhanced acceptor photoluminescence (PL) emission and a decreased donor PL lifetime. This indicates a FRET-mediated process, benefitted by the structural parameters of the NPls. We determine corresponding transfer rates up to k_FRET=0.99 ns^-1 and efficiencies of nearly η_FRET=70%. We also show FRET to occur between perovskite NPls of other thicknesses. Consequently, this strategy could lead to tailored, energy cascade nanostructures for improved optoelectronic devices.
Esperimento THALAS: Analisi Dei Rischi e Pericoli del Prototipo Biosuscettometro
Creators: name: S. Cuneo
name: F. Gastaldo
name: B. Gianesin
name: M. Marinelli
name: E. Oliveri
name: G. Sobrero
Publisher: name: INFN Open Access Repository
Year: 2005

description: Il documento descrive l'analisi dei rischi dell'apparecchiatura denominata "biosuscettometro" cosí come progettata per la realizzazione di un prototipo destinato all'applicazione su pazienti e volontari sani presso l'Ospedale Galliera di Genova.
High Availability a Basso Costo
Creators: name: Diacono, Domenico
name: Caló, Sabino
Publisher: name: INFN Open Access Repository
Year: 2007

description: Lo scopo di questo progetto è quello di portare in produzione servizi erogati in Alta Disponibilità, al fine di ridurre il tempo d'interruzione del servizio allo 0,01%. La caratteristica peculiare rispetto ad altri progetti che ottengono lo stesso risultato è l'utilizzo di componenti hardware e software standard, facilmente reperibili e generalmente più economici.
Cosmic Shear Analysis with CFHTLS Deep data
Creators: name: Semboloni, E.
name: Mellier, Y.
name: van Waerbeke, L.
name: Hoekstra, H.
name: Tereno, I.
name: Benabed, K.
name: Gwyn, S.
name: Fu, L.
name: Hudson, M. J.
name: Maoli, R.
name: Parker, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first cosmic shear measurements obtained from the T0001 release of the Canada-France-Hawaii Telescope Legacy Survey. The data set covers three uncorrelated patches (D1, D3 and D4) of one square degree each observed in u*, g', r', i' and z' bands, out to i'=25.5. The depth and the multicolored observations done in deep fields enable several data quality controls. The lensing signal is detected in both r' and i' bands and shows similar amplitude and slope in both filters. B-modes are found to be statistically zero at all scales. Using multi-color information, we derived a photometric redshift for each galaxy and separate the sample into medium and high-z galaxies. A stronger shear signal is detected from the high-z subsample than from the low-z subsample, as expected from weak lensing tomography. While further work is needed to model the effects of errors in the photometric redshifts, this results suggests that it will be possible to obtain constraints on the growth of dark matter fluctuations with lensing wide field surveys. The various quality tests and analysis discussed in this work demonstrate that MegaPrime/Megacam instrument produces excellent quality data. The combined Deep and Wide surveys give sigma_8= 0.89 pm 0.06 assuming the Peacock & Dodds non-linear scheme and sigma_8=0.86 pm 0.05 for the halo fitting model and Omega_m=0.3. We assumed a Cold Dark Matter model with flat geometry. Systematics, Hubble constant and redshift uncertainties have been marginalized over. Using only data from the Deep survey, the 1 sigma upper bound for w_0, the constant equation of state parameter is w_0 < -0.8.
description: 14 pages, 16 figures, accepted A&A
Configurazione dei Servizi di Posta Elettronica per la Sezione INFN di Genova
Creators: name: Brunengo, Alessandro
name: Corosu, Mirko
Publisher: name: INFN Open Access Repository
Year: 2007

description: Viene di seguito descritta la scelta degli applicativi e delle configurazioni hardware e software per dotare la sezione INFN di Genova di un servizio di posta elettronica affidabile e dotato delle funzionalità ritenute idonee al lavoro dell'utenza del Servizio Calcolo locale. La realizzazione dei vari servizi descritti sono il risultato di approssimazioni successive che ha raggiunto un livello di stabilità e di prestazioni idoneo alle funzionalità richieste, e potenzialmente scalabile entro un ordine di grandezza senza sostanziali rivoluzioni della architettura. Come vedremo i requisiti imposti al sistema, in particolare quello di indipendenza delle macchine coinvolte da altri servizi che non fossero l'infrastruttura di rete, ha reso necessaria una configurazione opportuna anche di servizi di rete potenzialmente indipendenti dalla posta elettronica, quali DNS ed authentication service. Le scelte operate non sono le uniche possibili, ma sono tra quelle ritenute idonee a dotare la sezione di un servizio che offre le funzionalità desiderate, trovando un equilibrio tra le esigenze di ridondanza e quella di non eccedere nella complessità del sistema, sia per contenere i costi che per limitare il man power necessario alla gestione hardware e software.
New experimental limit on the Pauli Exclusion Principle violation by electrons
Creators: name: The VIP Collaboration
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Pauli Exclusion Principle (PEP) is one of the basic principles of modern physics and, even if there are no compelling reasons to doubt its validity, it is still debated today because an intuitive, elementary explanation is still missing, and because of its unique stand among the basic symmetries of physics. The present paper reports a new limit on the probability that PEP is violated by electrons, in a search for a shifted K$_α$ line in copper: the presence of this line in the soft X-ray copper fluorescence would signal a transition to a ground state already occupied by 2 electrons. The obtained value, ${1/2} β^{2} \leq 4.5\times 10^{-28}$, improves the existing limit by almost two orders of magnitude.
description: submitted to Phys. Lett. B
ERC Locus Ludi workshop 2019. Play, Games and Cultural Patrimony
Creators: name: Dasen Véronique
Publisher: name: Zenodo
Year: 2019
Subjects: antiquity, play, game, die, board game, cultural transmission, production bias

description: International workshop within the ERC Locus Ludi at Fribourg University, May 17, 2019. For more see: https://locusludi.ch. The workshop Play, Games and Cultural Patrimony promoted reflections on the transmission and reception of ludic cultural patrimony from Greece and South Italy in museums and private collections, tracing the history of objects with the contribution of renowned international specialists.
Micksch, Jürgen: Deutschland - Einheit in kultureller Vielfalt
Creators: name: Burkhardt, Günter
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 41 Nr. 3 (1992): Ökumenische Rundschau, Band 41, Heft 3
Worker Node per il Calcolo LHC
Creators: name: Michelotto, Michele
Publisher: name: INFN Open Access Repository
Year: 2008

description: Questo documento descrive il panorama dei processori disponibili sul mercato per i nodi di calcolo (Worker Node) nei prossimi mesi. La valutazione delle prestazioni dei processori in questo momento di transizione tra SPEC INT 2000 e un altro benchmark, probabilmente della suite SPEC CPU 2006, risulta alquanto problematica poiché vengono usati vecchi e nuovi benchmark, con dati in parte pubblicati e in parte misurati. Il documento si conclude con una tabella in cui si evidenziano le prestazioni delle macchine attuali e di quelle delle generazioni precedenti in termini di SI2k e SPEC INT 2006 in attesa della scelta di WLCG come benchmark di riferimento per il futuro. Infine sono riportati i prezzi di alcuni medi acquisti di Worker Node (taglia tipica dei Tier2) degli ultimi mesi nell'intento di valutare i prezzi per gli acquisti futuri (2009).
Collective dynamics of stock market efficiency
Creators: name: Alves, Luiz G. A.
name: Sigaki, Higor Y. D.
name: Perc, Matjaz
name: Ribeiro, Haroldo V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Summarized by the efficient market hypothesis, the idea that stock prices fully reflect all available information is always confronted with the behavior of real-world markets. While there is plenty of evidence indicating and quantifying the efficiency of stock markets, most studies assume this efficiency to be constant over time so that its dynamical and collective aspects remain poorly understood. Here we define the time-varying efficiency of stock markets by calculating the permutation entropy within sliding time-windows of log-returns of stock market indices. We show that major world stock markets can be hierarchically classified into several groups that display similar long-term efficiency profiles. However, we also show that efficiency ranks and clusters of markets with similar trends are only stable for a few months at a time. We thus propose a network representation of stock markets that aggregates their short-term efficiency patterns into a global and coherent picture. We find this financial network to be strongly entangled while also having a modular structure that consists of two distinct groups of stock markets. Our results suggest that stock market efficiency is a collective phenomenon that can drive its operation at a high level of informational efficiency, but also places the entire system under risk of failure.
description: 11 pages, 4 figures, supplementary information; accepted for publication in Scientific Reports
title: Introduction to Haar Measure Tools in Quantum Information: A Beginner's Tutorial
Creators: name: Mele, Antonio Anna
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Haar measure
subject: Quantum information theory
subject: Quantum machine learning
subject: Classical shadow tomography
classificationCode: 539
subject: Moderne Physik

description: The Haar measure plays a vital role in quantum information, but its study often requires a deep understanding of representation theory, posing a challenge for beginners. This tutorial aims to provide a basic introduction to Haar measure tools in quantum information, utilizing only basic knowledge of linear algebra and thus aiming to make this topic more accessible. The tutorial begins by introducing the Haar measure with a specific emphasis on characterizing the moment operator, an essential element for computing integrals over the Haar measure. It also covers properties of the symmetric subspace and introduces helpful tools like tensor network diagrammatic notation, which aid in visualizing and simplifying calculations. Next, the tutorial explores the concept of unitary designs, providing equivalent definitions, and subsequently explores approximate notions of unitary designs, shedding light on the relationships between these different notions. Practical examples of Haar measure calculations are illustrated, including the derivation of well-known formulas such as the twirling of a quantum channel. Lastly, the tutorial showcases the applications of Haar measure calculations in quantum machine learning and classical shadow tomography.
Il "GRID Data Center" dell'INFN di Pisa
Creators: name: Arezzini, Silvia
name: Boccali, Tommaso
name: Calzolari, Federico
name: Ciampa, Alberto
name: Marini, Simone
name: Mazzoni, Enrico
name: Sarkar, Subir
name: Taneja, Sonia
name: Terreni, Giuseppe
Publisher: name: INFN Open Access Repository
Year: 2009

description: La candidatura della Sezione INFN di Pisa come membro del consorzio italiano dei Tier 2 di CMS è stata proposta nel Giugno 2005. Partendo dall'inizio del commissioning avvenuto alla fine del 2006, si descrive l'attuale stato di ciò che, nel corso del progetto, è divenuto un "GRID Data Center". Tale descrizione è organizzata tematicamente seguendo quelle che sono le diverse componenti del centro: infrastrutture, calcolo (farm), rete, storage e organizzazione GRID. Si conclude descrivendo le attività progettuali in corso e la direzione che si intende seguire per lo sviluppo futuro.
Impressioni e Considerazioni dal Winter Meeting 2001 dell'American  Nuclear Society, Reno, Nevada, USA:  EBR-I  e 'Cinquantenario' della Produzione di Energia Elettronucleare, Trasmutazione di Scorie Nucleare, Impieghi Avanzati degli Acceleratori, Reattori e Trasmutatori a Metalli Liquidi, Applicazioni Biomediche ed Industriali dei Radionuclidi e delle Radiazioni Ionizzanti
Creators: name: M. Bonardi
name: Mainardi, Hae Song
name: F. Groppi
name: D.Barni
name: P. Michelato
name: C. Pagani
name: D. Sertore
Publisher: name: INFN Open Access Repository
Year: 2001

description: In this report we review the main topics discussed during the annual Winter Meeting of the American Nuclear Society, ANS, held in Reno, Nevada, USA, on November 10-16, 2001. A brief historical review is presented of the early produced electricity by the Experimental fast Breeder Reactor-I of the Idaho National Engineering and Environmental Laboratory, INEEL, presently site of Department of Energy, DOE, USA. Some definition and neutronic parameters involved in thermal and fast breeder nuclear rector technolgy are reported in some details.  The possible applications of Accelerator Driven System (ADS) technology using high-energy and high-intensity proton accelerator for Nuclear Transmutation of rad-waste are reported. Some relevant concepts regarding nuclear reactor cooling by liquid metals, like Pb-Bi eutectic (LBE) and chemical-physical data concerned are discussed also. The use of nuclear energy could lead to an almost complete substitution of presently used fossil fuels like coal, oil and methane, with the highly echo-compatible 'hydricity' coming from the use of 'liquid hydrogen', as ultimate clean fuel for energy production and any kind of transportation vehicle. Some space is devoted to show that hydrogen fuel presents either less or comparable hazardness than more common gaseous fuels like methane and propane. The Hindenburg tragedy was due to the high flammability of the envelope of the Zeppelin air-ship and not to the presence of huge amouts of hydrogen gas itself. Finally, several non-energetic applications of radionuclides and radioactivity in industry, research and life sciences are presented.
Quantitative analysis of interaction effects in generalized Aubry-Andŕe-Harper models
Creators: name: Lin, Y. -T.
name: Weber, C. S.
name: Kennes, D. M.
name: Pletyukhov, M.
name: Schoeller, H.
name: Meden, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a quantitative analysis of two-particle interaction effects in generalized, one-dimensional Aubry-André-Harper models with the Fermi energy placed in one of the band gaps. We investigate systems with periodic as well as open boundary conditions; for the latter focusing on the number of edge states and the boundary charge. Both these observables are important for the classification of noninteracting topological systems. In our first class of models the unit cell structure stems from periodically modulated single-particle parameters. In the second it results from the spatial modulation of the two-particle interaction. For both types of models, we find that the single-particle band gaps are renormalized by the interaction in accordance with expectations employing general field theoretical arguments. While interaction induced effective edge states can be found in the local single-particle spectral function close to a boundary, the characteristics of the boundary charge are not modified by the interaction. This indicates that our results for the Rice-Mele and Su-Schriefer-Heeger model [Phys. Rev. B 102, 085122 (2020)] are generic and can be found in lattice models with more complex unit cells as well.
An Application of the Feferman-Vaught Theorem to Automata and Logics for
 Words over an Infinite Alphabet
Creators: name: Bès, Alexis
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.1.1; F.4.1; F.4.3

description: We show that a special case of the Feferman-Vaught composition theorem gives rise to a natural notion of automata for finite words over an infinite alphabet, with good closure and decidability properties, as well as several logical characterizations. We also consider a slight extension of the Feferman-Vaught formalism which allows to express more relations between component values (such as equality), and prove related decidability results. From this result we get new classes of decidable logics for words over an infinite alphabet.
description: 24 pages
Smart Farming: From Automated Machinery to the Cloud
Creators: name: Schmittner, Christoph
name: Hirsch, Christian
name: Zhendong, Ma
Publisher: name: Zenodo
Year: 2018

description: Smart Farming – the application of IoT and Industry4.0 technologies within the agricultural domain – has the potential to increase yield and efficiency while decreasing environmental impact. A European project will address the challenges necessary to reach these goals. The results will be demonstrated in multiple real world agricultural demonstrations.
Additional file 1 of Phoenics: a novel statistical approach for longitudinal metabolomic pathway analysis
Creators: name: Guilmineau, Camille
name: Tremblay-Franco, Marie
name: Vialaneix, Nathalie
name: Servien, Rémi
Publisher: name: figshare
Year: 2025
Subjects: subject: Statistics
subject: FOS: Mathematics

description: Supplementary file 1: Figure S1. Positive predictive value (PPV) and sensitivity for the test of the time effect in simulation SimulatedH1_ConditionTime. Figure S2. Percentage of differential metabolites for the time effect in the overlapping pathways in simulation SimulatedH1_ConditionTime. Table S1. Results of the test of the condition effect in simulation SimulatedH1_Condition. Table S2. Results of the test of the time effect in simulation SimulatedH1_Time. Table S3. Results of the test of the condition effect in simulation SimulatedH1_ConditionTime. Table S4. Results of the test of the time effect in simulation SimulatedH1_ConditionTime. Figure S3. Percentage of times the pathway “ABC transporters” is detected positive for the test of the time effect in simulation SimulatedVSize_ConditionTime. Figure S4. Percentage of differential metabolites for the condition effect in the overlapping pathways in simulation SimulatedH1_ConditionTime. Figure S5. Percentage of times the pathway “ABC transporters” is detected positive for the test of the condition effect in simulation SimulatedVSize_ConditionTime. (pdf file).
Global Conservative Solutions to a Nonlinear Variational Wave Equation
Creators: name: Bressan, Alberto
name: Zheng, Yuxi
Publisher: name: arXiv
Year: 2005
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q35

description: We establish the existence of a conservative weak solution to the Cauchy problem for the nonlinear variational wave equation $u_{tt} - c(u)(c(u)u_x)_x=0$, for initial data of finite energy. Here $c(\cdot)$ is any smooth function with uniformly positive bounded values.
description: 32 pages, 6 figures
Classical Density Functional Theory applied to the solid state
Creators: name: Lutsko, James F.
name: Schoonen, Cédric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The standard model of classical Density Functional Theory for pair potentials consists of a hard-sphere functional plus a mean-field term accounting for long ranged attraction. However, most implementations using sophisticated Fundamental Measure hard-sphere functionals suffer from potential numerical instabilities either due to possible instabilities in the functionals themselves or due to implementations that mix real- and Fourier-space components inconsistently. Here, we present a new implementation based on a demonstrably stable hard-sphere functional that is implemented in a completely consistent manner. The present work does not depend on approximate spherical integration schemes and so is much more robust than previous algorithms. The methods are illustrated by calculating phase diagrams for the solid state using the standard Lennard-Jones potential as well as a new class of potentials recently proposed by Wang et al (Phys. Chem. Chem. Phys. 22, 10624 (2020)). The latter span the range from potentials for small molecules to those appropriate to colloidal systems simply by varying a parameter. We verify that cDFT is able to semi-quantitatively reproduce the phase diagram in all cases. We also show that for these problems computationally cheap Gaussian approximations are nearly as good as full minimization based on finite differences.
Parametric Euler Sum Identities
Creators: name: Borwein, David
name: Borwein, Jonathan M.
name: Bradley, David M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 11M41

description: We consider some parametrized classes of multiple sums first studied by Euler. Identities between meromorphic functions of one or more variables generate reduction formulae for these sums.
description: 12 pages
N.I.N.A
Creators: name: N.I.N.A
Publisher: name: Zenodo
Year: 2024

description: Presentazione tenuta durante il seminario: Intelligenza artificiale e ricerca scientifica: minacce ed opportunità in un contesto di scienza aperta, all'interno del ciclo di incontri dal titolo:

Può ancora esistere una buona comunicazione scientifica? incontri sugli aspetti etici e pragmatici della scienza in un contesto accademico ipercompetitivo
The secrets of Wen Tingyun’s life and poetry
Creators: name: Mou, Huaichuan
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation is an investigation into the secrets of the life and poetry of a major late Tang poet, Wen Tingyun (798-866?). Traditional Chinese literary criticism has subjected Wen to such misunderstanding that even many modern studies are not immune from agelong prejudices. This fact can be regarded, in a sense, as a continuation of the slanders Wen suffered in his lifetime, though it results from misconstruing Wen's poetry and ignoring the political implications of his life. A complete and careful restudy of Wen Tingyun the man and Wen Tingyun the poet is therefore a pressing academic necessity. By means of factual investigation and textual annotation, and with recourse to the mutual evidence of history and poetry, this study probes the political intricacies of the major events of Wen's lifetime and explores the artistic complexities of his "inexplicable" verses. The result is that it finds a series of hitherto uncovered facts, reveals the unreliability of Wen's official biographies and reconstructs a chronology of Wen's life. Meanwhile, in eliciting the biographical information via unraveling Wen's poetic puzzles, it reaches hold of the key to going in and out of Wen's artistic labyrinth and thus paves the way for a reevaluation of his poetry. With respect to Wen's life, this study consists of the following findings: Wen's birth year (798); Wen clan's marriages with the royal family and hostility with the eunuchs; Wen's marriage to a singer-prostitute (836); his secret attendance upon the Heir Apparent (837-8); his change of name in an effort to pass the civil service examinations (839-40); his numerous failures and final "success" in becoming a Presented Scholar (847-59); and his "cheating" (helping others) when sitting for the examinations. These findings spell out a new understanding of Wen's life that underlies his poetry. Drawn from Wen's poetry, they will unfold more secrets of his poetry and then lead to more discoveries of his life. Since Wen used his poetry as elaborate representation of himself, it is only natural that he wanted to express, rather than hide, his experiences, feelings and ambitions, however ambiguous they might be, because of the political pressure of the time. In this sense, to know Wen Tingyun the man is to understand Wen Tingyun the poet, and vice versa. In brief, Wen was deeply involved in the palace and court struggles of his time, especially at odds with the power-entrenched eunuchs. Some of the events he witnessed were too sinister to be recorded by histories, and his poems reflecting the truth too incomprehensible for causal readers, despite his efforts to put his secrets into them. These contradictory factors caused a long-lasting misunderstanding before he could be seen in his true light. Now it is high time Wen were rehabilitated.