cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Inter-valley scattering induced by Coulomb interaction and disorder in carbon-nanotube quantum dots
Creators: name: Secchi, Andrea
name: Rontani, Massimo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We develop a theory of inter-valley Coulomb scattering in semiconducting carbon-nanotube quantum dots, taking into account the effects of curvature and chirality. Starting from the effective-mass description of single-particle states, we study the two-electron system by fully including Coulomb interaction, spin-orbit coupling, and short-range disorder. We find that the energy level splittings associated with inter-valley scattering are nearly independent of the chiral angle and, while smaller than those due to spin-orbit interaction, large enough to be measurable.
description: Revised version with a largely expanded discussion of experiments. To appear in Physical Review B
Constraining stellar CME occurrence with optical spectroscopy – updated results for M dwarfs
Creators: name: Odert, P.
name: Leitzinger, M.
name: Heinzel, P.
Publisher: name: Zenodo
Year: 2022
Subjects: Stellar activity
Stellar coronal mass ejections
Stellar flares

description: Optical spectroscopic observations sometimes show asymmetrically broadened wings and/or transient extra-emissions in chromospheric lines during or shortly after flares. Such events appear most commonly on active M dwarfs. These signatures could be due to prominence eruptions, which are closely related to CMEs on the Sun. Here we present an updated semi-empirical model which combines predictions of intrinsic stellar CME rates with radiative transfer calculations in the Balmer lines. Although Balmer signatures of (eruptive) prominences are typically dominated by scattering of the incident radiation on the Sun, we find that for M dwarfs the contribution of thermal emission should not be neglected. Its inclusion can lead to modified visibility compared to our previous study which assumed only scattering. Our updated model also predicts that filaments (i.e. prominences located in front of the stellar disk) can appear in emission for a wide range of plasma parameters on M dwarfs, in contrast to the Sun. This finding is consistent with existing observations of M dwarfs, which show typically blue asymmetries/blue-shifted line components in emission, but reports of absorption signatures are uncommon.
description: Acknowledgments: Austrian Science Fund (FWF): P30949-N36, I 5711-N; Czech Science Foundation 19-17102S, 22-34841S; 'Excellence Initiative - Research University' 2020-2026 at University of Wrocław project No. BPIDUB.4610.96.2021.KG.
description: {"references": ["Heinzel, P. (2015), ASSL, 415, 103", "Labrosse, N. et al. (2010), SSR, 151, 243", "Leitzinger, M. et al. (2022), Poster at Cool Stars 21, doi:10.5281/zenodo.7404528", "Leitzinger, M. et al. (2022), MNRAS, 513, 6058", "Odert, P. et al. (2020), MNRAS, 494, 3766", "Odert, P. et al. (2017), MNRAS, 472, 876"]}
title: Cold temperature effect on the acoustic activity emitted in various concrete mixtures under special monitoring conditions
Creators: name: Kamel, Omar A.
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Concrete mixtures with different microstructures and mechanical properties release different acoustic activity when they undergo cracking. This thesis aimed to investigate the effect of sub-freezing temperature (-20℃) on the waveforms of the acoustic emission (AE) in various concrete mixtures under flexural moment and abrasion forces. The study included many variables such as different coarse-to-fine aggregate ratios (C/F) (2.0 and 0.7), crumb rubber (CR) contents (0%, 10%, 20%, and 30%), rubber particle sizes (4.5 mm CR and 0.4 mm powder rubber), water-cement ratios (W/C) (0.4 and 0.55), fiber materials (polypropylene synthetic and steel), synthetic fiber lengths (19 mm and 38 mm), and volumes (0.2% and 1%), and sample temperatures (25℃ and -20℃). Samples from thirteen concrete mixtures were cast and tested under abrasion and monotonic fourpoint flexure moments, along with attaching piezoelectric AE sensors to monitor the AE activity throughout testing. Characteristics of AE signals such as the number of hits, signal amplitudes, cumulative signal strength (CSS), and wave rise time were collected and underwent various AE parameter-based analyses to correlate damage progression to the variation in the AE waveform. The results supported the ability of AE analysis to highlight abrasion damage progression and to detect the onset of micro- and macroflexural cracks at both temperatures. Compared to 25℃, cooling down samples’ temperature to -20℃ was found to decrease the values of the number of hits, CSS, severity (Sᵣ), and historic index (H (t)) and to increase b-values for the waves emitted under abrasion and flexure. Noticeably, the reduction in samples’ temperature decreased the emitted number of hits, CSS, Sᵣ, and H (t), and increased b-values till the onset of the first flexural macro-crack regardless of mixture composition. In addition, increasing CR content (up to 30%) decreased wave signal amplitudes significantly at 25℃ and was less noticeable at -20℃, which manifested the attenuation phenomenon at both temperatures. Eventually, the study developed user-friendly damage charts to estimate ranges of abrasion mass loss and wear depth and to classify the collected AE events, whether associated with flexure micro- or macro-cracks, exclusively considering temperature effect.
The first Hi-GAL observations of the outer Galaxy: a look to star formation in the third Galactic quadrant in the longitude range 216.5 < l < 225.5
Creators: name: Elia, D.
name: Molinari, S.
name: Fukui, Y.
name: Schisano, E.
name: Olmi, L.
name: Veneziani, M.
name: Hayakawa, T.
name: Pestalozzi, M.
name: Schneider, N.
name: Benedettini, M.
name: Di Giorgio, A. M.
name: Ikhenaode, D.
name: Mizuno, A.
name: Onishi, T.
name: Pezzuto, S.
name: Piazzo, L.
name: Polychroni, D.
name: Rygl, K. L. J.
name: Yamamoto, H.
name: Maruccia, Y.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first Herschel PACS and SPIRE photometric observations in a portion of the outer Galaxy ($216.5^{\circ} \lesssim \ell \lesssim 225.5^{\circ}$ and $-2^{\circ} \lesssim b \lesssim 0^{\circ}$) as a part of the Hi-GAL survey. The maps between 70 and 500 $μ$m, the derived column density and temperature maps, and the compact source catalog are presented. NANTEN CO(1-0) line observations are used to derive cloud kinematics and distances, so that we can estimate distance-dependent physical parameters of the compact sources (cores and clumps) having a reliable spectral energy distribution, that we separate in 255 proto-stellar and 688 starless. Both typologies are found in association with all the distance components observed in the field, up to $\sim 5.8$ kpc, testifying the presence of star formation beyond the Perseus arm at these longitudes. Selecting the starless gravitationally bound sources we identify 590 pre-stellar candidates. Several sources of both proto- and pre-stellar nature are found to exceed the minimum requirement for being compatible with massive star formation, based on the mass-radius relation. For the pre-stellar sources belonging to the Local arm ($d\lesssim1.5$ kpc) we study the mass function, whose high-mass end shows a power-law $N(\log M) \propto M^{-1.0 \pm 0.2}$. Finally, we use a luminosity vs mass diagram to infer the evolutionary status of the sources, finding that most of the proto-stellar are in the early accretion phase (with some cases compatible with a Class I stage), while for pre-stellar sources, in general, accretion has not started yet.
description: Accepted by ApJ
Coupled-Plasmon-Controlled Transmission in Distributed Bragg Structures
Creators: name: Rohde, Charles A.
name: Deutsch, Miriam
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using the finite element method we investigate plasmon-mediated transmission in a periodically modulated metal-insulator-metal (MIM) grating. We compute the eigenmodes of a silver-silica-silver conformal coating atop an array of close-packed silica rods, and correlate them with extinction and transmission characteristics of the structure. We observe efficient coupling of impinging plane-waves to gap plasmon modes, allowing control of both bandwidth and intensity of the transmitted radiation.
description: 4 pages, 4 figures
Efficient Communication in Organizations
Creators: name: Vaccari, Federico
name: Vaccari, Federico
Publisher: name: Unknown
Year: 2022
Subjects: subject: Industrial Organization
subject: Productivity Analysis
subject: information
subject: communication
subject: organizations
subject: efficiency
subject: costly Talk

description: Organizations design their communication structures to improve decision-making while limiting wasteful influence activities. An efficient communication protocol grants complete information payoffs to all organization members, thereby overcoming asymmetric information problems at no cost. This paper characterizes efficient protocols assuming that: (i) some agents within the organization have the knowledge required for optimal decision-making; (ii) both the organization and consulted agents incur losses proportional to the exerted influence activities; and (iii) informed agents can discuss their strategies before being consulted. Under these assumptions, “public advocacy” is the unique efficient communication protocol. This result provides a novel rationale for public advocacy.
Extremal Kähler metrics on projectivised vector bundles
Creators: name: Brönnle, Till
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C55

description: We prove the existence of extremal, non-csc, Kähler metrics on certain unstable projectivised vector bundles $¶(E) \to M$ over a cscK-manifold $M$ with discrete holomorphic automorphism group, in certain adiabatic Kähler classes. In particular, the vector bundles $E \to M$ under consideration are assumed to split as a direct sum of stable subbundles $E=E_1 \oplus \dots \oplus E_s$ all having different Mumford-Takemoto-slope, e.g. $μ(E_1) > \dots > μ(E_s)$.
description: 39 pages
Non-local transport properties of nanoscale conductor-microwave cavity systems
Creators: name: Bergenfeldt, C.
name: Samuelsson, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent experimental progress in coupling nanoscale conductors to superconducting microwave cavities has opened up for transport investigations of the deep quantum limit of light-matter interactions, with tunneling electrons strongly coupled to individual cavity photons. We have investigated theoretically the most basic cavity-conductor system with strong, single photon induced non-local transport effects; two spatially separated double quantum dots (DQD:s) resonantly coupled to the fundamental cavity mode. The system, described by a generalized Tavis-Cummings model, is investigated within a quantum master equation formalism, allowing us to account for both the electronic transport properties through the DQD:s as well as the coherent, non-equilibrium cavity photon state. We find sizeable non-locally induced current and current cross-correlations mediated by individual photons. From a full statistical description of the electron transport we further reveal a dynamical channel blockade in one DQD lifted by photon emission due to tunneling through the other DQD. Moreover, large entanglement between the orbital states of electrons in the two DQD:s is found for small DQD-lead temperatures.
description: 16 pages, 10 figures
Conceptualisations of care: the understanding of ‘care’ across Irish educational legislation, policies, circulars and curriculum
Creators: name: O'Flaherty, Joanne
name: Mc Cormack, Orla
Publisher: name: University of Limerick
Year: 2023
Subjects: Education

description: Set against a context where care for the person, others, and the world in which we live receives increasing attention in the policy and practice nexus, this paper sets out to explore how ‘care’ is understood and reflected in Irish educational legislation, policies, circulars and curricula. The importance of focusing on care has been further accentuated during the COVID-19 pandemic. Each source was searched systematically and following application of inclusion criteria, 616 documents were included in the sample, legislation (n = 39), policies (n = 49), active circulars (n = 179), archived circulars (n = 249) and curriculum specifications (n = 100). Thirteen per cent of the documents included in the review reflected some discussion of care. Thematic analysis of these documents identified that ‘care’ tended to be understood and reflected in five main interrelated ways: (1) care for the individual child and the related duty of care schools/teachers have for children; (2) supporting students to care for them-selves and for others; (3) care presented in terms of ‘pastoral care’ or intertwined with ‘well-being’; (4) care presented from the perspective of care for the environment and finally; and (5) care presented from a structural perspective regarding care supports within the school. Some considerations and challenges are presented in terms of supporting schools to navigate these different and at times diverging policy, legislative and curriculum contexts with regards conditions for implementation of care in education.
Odd-even effect of quantum discord and quantum phase transitions in the S=1/2 spin ladder with ring exchange
Creators: name: Huang, H. L.
name: Sun, Z. Y.
name: Wang, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The singularity of quantum correlations, such as quantum entanglement(QE) and quantum discord(QD), has been widely regarded as a valuable indicator for quantum phase transition(QPT) in low-dimensional quantum systems. In this paper, for a spin ladder system with ring exchange, we find that the singularity of QD (or QE) could not indicate the critical points of the system. Instead, the QD shows a novel odd-even effect in some phases, which can be used to detect the phase boundary points. The size effect is related to the symmetry breaking of the ladder.
Homomorphic Encryption: Theory & Applications
Creators: name: Sen, Jaydip
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The goal of this chapter is to present a survey of homomorphic encryption techniques and their applications. After a detailed discussion on the introduction and motivation of the chapter, we present some basic concepts of cryptography. The fundamental theories of homomorphic encryption are then discussed with suitable examples. The chapter then provides a survey of some of the classical homomorphic encryption schemes existing in the current literature. Various applications and salient properties of homomorphic encryption schemes are then discussed in detail. The chapter then introduces the most important and recent research direction in the filed - fully homomorphic encryption. A significant number of propositions on fully homomorphic encryption is then discussed. Finally, the chapter concludes by outlining some emerging research trends in this exicting field of cryptography.
description: Book Chapter accepted for publication in the book entitled: Theory and Practice of Cryptography and Network Security Protocols and Technologies, ISBN: 980-953-307-848-4, Sen, J. (Ed.), to be published by INTECH Publishers, Croatia. Expected month of publication: June 2013. This book chapter is a state of the art survey on homomorphic encryption mechanisms
A low-mass cut-off near the hydrogen burning limit for Salpeter-like initial mass functions in early-type galaxies
Creators: name: Barnabè, Matteo
name: Spiniello, Chiara
name: Koopmans, Léon V. E.
name: Trager, Scott C.
name: Czoske, Oliver
name: Treu, Tommaso
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We conduct a detailed investigation of the properties of the stellar initial mass function (IMF) in two massive early-type lens galaxies with velocity dispersions of sigma ~245 km/s and sigma ~325 km/s, for which both HST imaging and X-Shooter spectra are available. We compare the inferences obtained from two fully independent methods: (i) a combined gravitational lensing and stellar dynamics (L&D) analysis of the data sets employing self-consistent axisymmetric models, and (ii) a spectroscopic simple stellar population (SSP) analysis of optical line-strength indices, assuming single power-law IMFs. The results from the two approaches are found to be in agreement within the 1-sigma uncertainties. Both galaxies are consistent with having a Salpeter IMF (power-law slope of x = 2.35), which is strongly favoured over a Chabrier IMF (x = 1.8), with probabilities inferred from the joint analysis of 89% and 99%, respectively. Bottom-heavy IMFs significantly steeper than Salpeter (x >= 3.0) are ruled out with decisive evidence (Bayes factor B > 1000) for both galaxies, as they exceed the total mass derived from the L&D constraints. Our analysis allows, for the first time, the inference of the low-mass cut-off of the IMF (M_low). Combining the joint L&D and SSP analyses of both galaxies, we infer an IMF slope of x = 2.22 +/- 0.14, consistent with Salpeter IMF, and a low-mass limit M_low = 0.13 +/- 0.03 M_sun, just above the hydrogen burning limit.
description: 6 pages, 2 figures. Accepted for publication in MNRAS
Dyson-Schwinger approach to strongly coupled theories
Creators: name: Popovici, Carina
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Although nonperturbative functional methods are often associated with low energy Quantum Chromodynamics, contemporary studies indicate that they provide reliable tools to characterize a much wider spectrum of strongly interacting many-body systems. In this review, we aim to provide a modest overview on a few notable applications of Dyson-Schwinger equations to QCD and condensed matter physics. After a short introduction, we lay out some formal considerations and proceed by addressing the confinement problem. We discuss in some detail the heavy quark limit of Coulomb gauge QCD, in particular the simple connection between the nonperturbative Green's functions of Yang-Mills theory and the confinement potential. Landau gauge results on the infrared Yang-Mills propagators are also briefly reviewed. We then focus on less common applications, in graphene and high-temperature superconductivity. We discuss recent developments, and present theoretical predictions that are supported by experimental findings.
description: 16 pages, 3 figures, invited brief review for Mod.Phys.Lett.A
Common Mode Ferrite Chokes: Measurements, Modelling, and Simulation
Creators: name: Manterola, Alejandro M.
name: Moreno, Roberto
name: Tijero, María
name: Gascón, Alberto
name: Angulo, Luis D.
name: García, Salvador G.
Publisher: name: Zenodo
Year: 2022
Subjects: EMC
Common Mode Chokes
Magnetic materials
Material characterization

description: In this work, we show a procedure to determine the complex magnetic permeability parameters of MnZn and NiZn ferrite materials. The results obtained are compared with experimental measurements, finite element analysis, and theoretical models, exhibiting a good agreement among them.
description: This work was supported in part by the IKERLAN-UGR contract "Investigación sobre materiales magnéticos mediante simulación 3D", the EU FEDER under Project B-TIC-700-UGR20, and eSAFE, and the Spanish Ministerio de Ciencia e Innovacion (MICINN) under Project eSAFE-UAV (PID2019-106120RB-C33).
CP-violating Dashen phase transition in the two-flavor Schwinger model: a study with matrix product states
Creators: name: Funcke, Lena
name: Jansen, Karl
name: Kühn, Stefan
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2022
Subjects: CP: violation
fermion: condensation
entropy: entanglement
critical phenomena
flavor
Schwinger model
quantum chromodynamics
zero mode
Hamiltonian
stability
lattice
electric field
formation
Monte Carlo

description: We numerically study the Hamiltonian lattice formulation of the two-flavor Schwinger model using matrix product states. Keeping the mass of the first flavor at a fixed positive value, we tune the mass of the second flavor through a range of negative values, thus exploring a regime where conventional Monte Carlo methods suffer from the sign problem and may run into instabilities due to zero modes. Our results indicate a phase transition at the point where the absolute value of the second flavor mass approaches the first flavor mass. The phase transition is accompanied by the formation of a fermion condensate, a steep drop of the average electric field, and a peak in the bipartite entanglement entropy. Our data hints at a second order transition, which is the 1+1D analog of the CP-violating Dashen phase transition in QCD.
title: Rileggere Samonà Re-reading Samonà
Creators: name: Pujia, Laura
Publisher: name: RomaTrE-Press
Year: 2020

description: Il volume, nella sua seconda edizione, raccoglie l’esito della call for papers and photos Rileggere Samonà, promossa dal Dipartimento di Architettura dell’Università degli Studi Roma Tre e dal Dipartimento di Culture del progetto dell’Università Iuav di Venezia con la collaborazione dell’Archivio Progetti e della Collezione Andrea Samonà e Livia Toccafondi di Roma. L’iniziativa ha inteso proseguire il ciclo di eventi organizzati con l’Archivio Progetti Iuav – due mostre e una giornata di studi tenutesi nella primavera del 2018 a Venezia presso la sede del Rettorato ai Tolentini – dedicati a Giuseppe Samonà (1898-1983), uno degli architetti più noti e influenti del Novecento italiano. Attivo come progettista, teorico e didatta, Samonà è stato direttore e rifondatore dell’Istituto Universitario di Architettura di Venezia (IUAV) dal 1945 al 1972 e senatore della Repubblica dal 1972 al 1976. L’obiettivo della call è stato quello di ampliare il dibattito scientifico di rilettura del lavoro di Giuseppe Samonà e del suo studio con il figlio Alberto, raccogliendo contributi originali di carattere teorico, storico-critico, letture di progetti, documentazioni fotografiche delle opere. I materiali pervenuti sono stati selezionati tramite peer-review e raccolti in un volume speciale della collana Patrimonio culturale e territorio del Dipartimento di Architettura dell’Università di Roma Tre edita da Roma TrE-Press e a cura di Laura Pujia. Il comitato scientifico della call era costituito da: Cesare Ajroldi (Università degli Studi di Palermo), Paola Di Biagi (Università degli Studi di Trieste), Giovanni Durbiano (Politecnico di Torino), Giovanni Longobardi (Università degli Studi Roma Tre), Angelo Maggi (Università Iuav di Venezia), Giovanni Marras (Università Iuav di Venezia), Lionella Scazzosi (Politecnico di Milano), Armando Sichenze (Università degli Studi della Basilicata).

I materiali pervenuti sono stati selezionati tramite peer-review e raccolti in un volume speciale della collana Patrimonio culturale e territorio del Dipartimento di Architettura dell’Università di Roma Tre edita da Roma TrE-Press e a cura di Laura Pujia. Il comitato scientifico della call era costituito da: Cesare Ajroldi (Università degli Studi di Palermo), Paola Di Biagi (Università degli Studi di Trieste), Giovanni Durbiano (Politecnico di Torino), Giovanni Longobardi (Università degli Studi Roma Tre), Angelo Maggi (Università Iuav di Venezia), Giovanni Marras (Università Iuav di Venezia), Lionella Scazzosi (Politecnico di Milano), Armando Sichenze (Università degli Studi della Basilicata).
Transition radiation from electrons with orbital angular momentum
Creators: name: Konkov, Anatoly S.
name: Potylitsyn, Alexander P.
name: Polonskaya, Marina S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Several experimental groups have recently obtained the so called vortex electrons (electrons with orbital angular momentum (OAM) of l = 100h) with energies of 300 keV. The gyromagnetic ratio of such electrons becomes proportional to the OAM value, which leads to the corresponding increase of the electron magnetic moment. In this paper we investigate the transition radiation from the "charge + magnetic moment" system using the theory of classical electrodynamics. The circular polarization of optical transition radiation amounts up to 70%, which allows to use this effect for the independent measurement of the electron orbital momentum value.
description: 9 pages with 7 figures
The Johnson Cokernel and the Enomoto-Satoh invariant
Creators: name: Conant, Jim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B55

description: We study the cokernel of the Johnson homomorphism for the mapping class group of a surface with one boundary component. A graphical trace map simultaneously generalizing trace maps of Enomoto-Satoh and Conant-Kassabov-Vogtmann is given, and using technology from the author's work with Kassabov and Vogtmann, this is is shown to detect a large family of representations which vastly generalizes series due to Morita and Enomoto-Satoh. The Enomoto-Satoh trace is the rank 1 part of the new trace. The rank 2 part is also investigated.
description: Added a reference to forthcoming work with Kassabov
Modeling the Nuclear Infrared Spectral Energy Distribution of Type II Active Galactic Nuclei
Creators: name: Lira, Paulina
name: Videla, Liza
name: Wu, Yanling
name: Alonso-Herrero, Almudena
name: Alexander, David M.
name: Ward, Martin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present results from model fitting to the Spectral Energy Distribution (SED) of a homogeneous sample of Seyfert II galaxies drawn from the $12μ$m Galaxy Sample. Imaging and nuclear flux measurements are presented in an accompanying paper (Videla et al., 2013). Here we add IRS Spitzer observations to further constrain the SEDs after careful subtraction of a starburst component. We use the library of CLUMPY torus models from Nenkova et al.~(2008ab) and also test the two-phase models recently produced by Stalevski et al.~(2012). We find that photometric and spectroscopic observations in the mid-IR (>5mu) are crucial to properly constrain the best-fit torus models. About half of our sources show clear near-IR excess of their SEDs above the best fit models. This problem can be less severe when using the Stalevski et al.~(2012) models. It is not clear what is the nature of this emission since best fitted black body temperatures are very high (~1700-2500 K) and the Type II classification of our sources would correspond to a small probability to peer directly into the hottest regions of the torus. Crucially, the derived torus parameters when using CLUMPY models are quite robust,, independently of whether the sources require an additional black body component or not. Our findings suggest that tori are characterized by N_0 > 5, sigma > 40, tau < 25, i > 40 degrees, Y < 50 and A_v^los ~ 100-300. From these we can determine that typical torus sizes and masses of 0.1-5.0 pc and 10^{4-6} M_\odot. We find tentative evidence that those nuclei with a detected Hidden Broad Line Regions are characterized by lower levels of extinction than those without one. Finally, we find no correlation between the torus properties and the presence of circumnuclear or more global star-formation.
description: 5 Tables, 11 Figures, ApJ in press
Probability Distribution of the Ratio of Consecutive Level Spacings in Interacting Particle Systems
Creators: name: Chavda, N. D.
name: Kota, V. K. B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the probability distribution of the ratio of consecutive level spacings for embedded one plus two-body random matrix ensembles with and without spin degree of freedom and for both fermion and boson systems. The agreement between the numerical results and the recently derived analytic form for the distribution and other related quantities is found to be close. This establishes conclusively that local level fluctuations generated by embedded ensembles follow the results of classical Gaussian ensembles.
description: 7 pages, 10 figures
Thin domains with doubly oscillatory boundary
Creators: name: Arrieta, José M.
name: Villanueva-Pesqueira, Manuel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider a 2-dimensional thin domain with order of thickness ε which presents oscillations of amplitude also ε on both boundaries, top and bottom, but the period of the oscillations are of different order at the top and at the bottom. We study the behavior of the Laplace operator with Neumann boundary condition and obtain its asymptotic homogenized limit as the parameter ε goes to 0. We are interested in understanding how this different oscillatory behavior at the boundary, influences the limit problem.
Phase transition in the economically modeled growth of a cellular nervous system
Creators: name: Nicosia, Vincenzo
name: Vértes, Petra E.
name: Schafer, William R.
name: Latora, Vito
name: Bullmore, Edward T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Biological Physics (physics.bio-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Spatially-embedded complex networks, such as nervous systems, the Internet and transportation networks, generally have non-trivial topological patterns of connections combined with nearly minimal wiring costs. However the growth rules shaping these economical trade-offs between cost and topology are not well understood. Here we study the cellular nervous system of the nematode worm C. elegans, together with information on the birth times of neurons and on their spatial locations. We find that the growth of this network undergoes a transition from an accelerated to a constant increase in the number of links (synaptic connections) as a function of the number of nodes (neurons). The time of this phase transition coincides closely with the observed moment of hatching, when development switches metamorphically from oval to larval stages. We use graph analysis and generative modelling to show that the transition between different growth regimes, as well as its coincidence with the moment of hatching, can be explained by a dynamic economical model which incorporates a trade-off between topology and cost that is continuously negotiated and re-negotiated over developmental time. As the body of the animal progressively elongates, the cost of longer distance connections is increasingly penalised. This growth process regenerates many aspects of the adult nervous system's organization, including the neuronal membership of anatomically pre-defined ganglia. We expect that similar economical principles can be found in the development of other biological or man-made spatially-embedded complex systems.
description: 16 pages, 8 figures, 3 tables
Large-gap quantum spin Hall insulators in tin films
Creators: name: Xu, Yong
name: Yan, Binghai
name: Zhang, Hai-Jun
name: Wang, Jing
name: Xu, Gang
name: Tang, Peizhe
name: Duan, Wenhui
name: Zhang, Shou-Cheng
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The search of large-gap quantum spin Hall (QSH) insulators and effective approaches to tune QSH states is important for both fundamental and practical interests. Based on first-principles calculations we find two-dimensional tin films are QSH insulators with sizable bulk gaps of 0.3 eV, sufficiently large for practical applications at room temperature. These QSH states can be effectively tuned by chemical functionalization and by external strain. The mechanism for the QSH effect in this system is band inversion at the Γpoint, similar to the case of HgTe quantum well. With surface doping of magnetic elements, the quantum anomalous Hall effect could also be realized.
Six Dances
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2018
Subjects: Music
Music by African American composers

description: Score of Ulysses Kay's "Six Dances for String Orchestra," with the alternative title "American Dances," consists of "Schottische," "Waltz," "Round Dance," "Polka," "Promenade," and "Galop."
AI-RIDE VISION
Creators: name: Leone, Giuseppe Riccardo
name: Righi, Marco
name: Moroni, Davide
Publisher: name: Zenodo
Year: 2022
Subjects: YOLO
Computer Vision
motorbike
driving controlo

description: AIRIDE VISION è un progetto di ricerca la cui finalità è lo sviluppo di un innovativo sistema di telemetria, basato su algoritmi di Computer Vision e Intelligenza Artificiale, in grado di riconoscere automaticamente, con grado di affidabilità variabile, delle specifiche penalità previste durante la fase pratica degli esami per il conseguimento della patente di guida per motocicli. Tale sistema non intende esprimere giudizi certi, bensı̀ essere di supporto per l’esaminatore umano nella valutazione del test di guida.
title: Quantifying the bilateral deficit in force during maximal arm cycling wingates
Creators: name: Edwards, Philip Francis
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: The bilateral deficit phenomenon (BLD) is a reduction in performance during a bilateral motor task when compared to the performance during the unilateral version of the same motor task. The objective of the current study was to determine if there was a BLD during maximal arm cycling Wingate tests. Thirteen healthy male participants performed three 30-second maximal arm cycling Wingate tests during three experimental sessions. Each session the participants completed Wingate tests with 1) both arms, 2) dominant arm, and 3) non-dominant arm at randomized intensities including 3% body weight (BW), 4% BW, or 5% BW. Instantaneous force data on the pedal axis was recorded and used to calculate the BLD. Data were analyzed using a three-way ANOVA with factors of intensity (3% BW, 4% BW, and 5% BW), time during the Wingate (1s – 10s, 11s – 20s, and 21s – 30 s), and position (1 o’clock position and 6 o’clock position). There was an overall BLD of -31.68 ± 21.20% (p <.001). The magnitude of the bilateral index (BI) value was significantly affected by the intensity of the Wingate (p =.006), and the time period of the Wingate (p<.001), but not the position. There were differences in the magnitude of the BLD across intensities and time periods. Overall, a BLD in force exists during maximal arm cycling Wingates and it is affected by fatigue and the movement velocity. Increases in movement velocity decrease the magnitude of the BLD and increased amounts of muscle fatigue likely increase the magnitude of the BLD.
Electronic structure of Co doped ZnO from the \textit{GW} perspective
Creators: name: Sarsari, I. Abdolhosseini
name: Pemmaraju, C. D.
name: Salamati, H.
name: Sanvito, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In transition metal doped ZnO, the energy position of dopant 3$d$ states relative to host conduction and valence bands is crucial in determining the possibilty of long range ferromagnetism. Density functional theory based estimates of the energy position of Co-3$d$ states in Co doped ZnO differ substantially depending upon the choice of exchange-correlation functional. In this work we investigate many-body $GW$ corrections on top of DFT$+U$ and hybrid-DFT groundstates to provide a theoretical benchmark for the quasiparticle energies in wurtzite ZnO:Co. Both single shot $G_0W_0$ as well as partially self-consistent $GW_0$ wherein the wavefunctions are held fixed at the DFT level but the eigenvalues in G are iterated, are considered. The predicted energy position of the minority spin Co-$t_2$ states is 3.0-3.6 eV above the ZnO conduction band minimum which is closer to hybrid-DFT based estimates.
description: 6 pages, 2 figures
Recognizable classification of Lorentzian distance-squared mappings
Creators: name: Ichiki, Shunsuke
name: Nishimura, Takashi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57R45, 58C25, 58K50

description: The Lorentzian length, which is one of the most significant functions in Lorentzian geometry, is a complex-valued function. Its square gives a real-valued non-degenerate quadratic function. In this paper, we define naturally extended mappings of Lorentzian distance-squared functions, wherein each component is a Lorentzian distance-squared function; and classify these mappings completely by the likeness of recognition subspaces.
title: Mercado
Creators: name: Samões, Orlando
Publisher: name: IFILNOVA, Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa
Year: 2022

description: Entrada de dicionário sobre "Mercado": Origens (trocas e voluntarismo); Ajustamentos e preços; Formas de mercado; Trabalho e tempo; Falhas de mercado; Dimensões morais.
description: Samões, O. “Mercado”. Dicionário de Filosofia Moral e Política (2022), 2.ª série, coord. António Marques e André Santos Campos. Lisboa: Instituto de Filosofia da Nova, Faculdade de Ciências Sociais e Humanas, Universidade Nova de Lisboa.
Swift publication statistics: a comparison with other major observatories
Creators: name: Savaglio, S.
name: Grothkopf, U.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Swift is a satellite equipped with gamma-ray, X-ray, and optical-UV instruments aimed at discovering, localizing and collecting data from gamma-ray bursts (GRBs). Launched at the end of 2004, this small-size mission finds about a hundred GRBs per year, totaling more than 700 events as of 2012. In addition to GRBs, Swift observes other energetic events, such as AGNs, novae, and supernovae. Here we look at its success using bibliometric tools; that is the number of papers using Swift data and their impact (i.e., number of citations to those papers). We derived these for the publication years 2005 to 2011, and compared them with the same numbers for other major observatories. Swift provided data for 1101 papers in the interval 2005-2011, with 24 in the first year, to 287 in the last year. In 2011, Swift had more than double the number of publications as Subaru, it overcame Gemini by a large fraction, and reached Keck. It is getting closer to the ~400 publications of the successful high-energy missions XMM-Newton and Chandra, but is still far from the most productive telescopes VLT (over 500) and HST (almost 800). The overall average number of citations per paper, as of November 2012, is 28.3, which is comparable to the others, but lower than Keck (41.8). The science topics covered by Swift publications have changed from the first year, when over 80% of the papers were about GRBs, while in 2011 it was less than 30%.
description: PASP accepted, minor changes after referee's report
A reconstruction of object properties with significant uncertainties
Creators: name: Romanovski, M.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Computational Biology

description: An approach is developed to read and simulate experimental data using inverse problems. The idea is founded on a locally sequential refinement of the reconstruction. The regularization that occurs under a scheme of separate matching with observations is the basis for a numerical solution. The simultaneous identification of several unknowns using a set of mathematical models and functional representations of the desired quantities combines the simulation with inverse problem solutions. This unified approach is applied to the investigation of the enzyme kinetics. The object in question is simulated in the absence of information about the functional type of sought kinetic parameters, the noise structure and its level, and also details of observations. Nevertheless, the composition and volume of the samples under consideration prove to be sufficient not only for determining all of the kinetic parameters but also for clarifying the observation conditions. The obtained results demonstrate the effectiveness of the sequential regularized solutions to the inverse problems for the case of acting at once all the known features of ill-posed problems.
Day-Night Asymmetries in Active-Sterile Solar Neutrino Oscillations
Creators: name: Long, H. W.
name: Li, Y. F.
name: Giunti, C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Day-night asymmetries in active-sterile solar neutrino oscillations are discussed in the general $3+N_{s}$ mixing framework with three active and N_s sterile neutrinos. Analytical expressions of the probability of neutrino flavor transitions in the Earth in the perturbative approximation and in the slab approximation are presented and the effects of active-sterile mixing and of the CP-violating phases are discussed. The accuracy of the analytical approximations and the properties of the day-night asymmetries are illustrated numerically in the 3+1 neutrino mixing framework.
description: 30 pages, 8 gigures, publshed in JHEP
RN/CFT Correspondence From Thermodynamics
Creators: name: Chen, Bin
name: Zhang, Jia-ju
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent studies suggest that in the Kerr/CFT correspondence, much universal information of the dual CFT, including the central charges and the temperatures, is fully encoded in the thermodynamics of the outer and inner horizons of the Kerr(-Newman) black holes. In this paper, we study holographic descriptions of Reissner-Nordström (RN) black holes in arbitrary dimensions by using the thermodynamics method.We refine the thermodynamics method proposed in arXiv:1206.2015 by imposing the "quantization" condition so that we can fix the ambiguity in determining the central charges of the dual CFT of RN black holes. Using the refined thermodynamics method, we find the holographic CFT duals for the RN black holes, and confirm these pictures by using conventional analysis of asymptotic symmetry group and the hidden conformal symmetry in the low-frequency scattering. In particular, we revisit the four-dimensional dyonic RN black hole and find a novel magnetic picture, besides the known electric CFT dual picture. We show how to generate a class of dual dyonic pictures by $SL(2,Z)$ transformations.
description: 32 pages, references added, published version
Geochemical and radiogenic isotope records of the Weissert Event in south Tethyan sediments
Creators: name: Shmeit, M.
name: Chauvel, C.
name: Giraud, F.
name: Jaillard, E.
name: Reboulet, S.
name: Masrour, M.
name: Spangenberg, J. E.
name: El-Samrani, A.
Publisher: name: Geological Society of London
Year: 2022
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Fig. S2. Location of selected samples (arrows) in Zalidou and DSDP Hole 416A; colors correspond to the pre-Weissert Event (blue), Weissert Event (green) and post-Weissert Event intervals (orange), following Shmeit et al. (2022). In Zalidou, the recognized stages are plotted with, the ammonite biostratigraphy (zones/subzones), calcareous nannofossil biostratigraphy (zones/subzones), sedimentary discontinuities (D0 to D8) and lithology (Reboulet et al. 2022; Shmeit et al.  2022). In Hole 416A, the recognized stages are plotted with, the calcareous nannofossil biostratigraphy (zones/subzones) same as for Zalidou, the lithological units, magnetic anomalies and lithology. Also, in Hole 416A, the Berriasian/Valanginian boundary is fixed following Čepek and Gartner (1980), and the top of the Valanginian stage is fixed following Shmeit et al. (2022). Abbreviations: Berr., Berriasian; Haut., Hauterivian; T. pertra., T. pertransiens; N. prem., N. premolicus; N. neocomiensi., N. neocomiensiformis; B. camp., B. campylotoxus; K. i., K. inostranzewi; S. ver., S. verrucosum; K. pro.; K. pronecostatum; T. c., Tescheniceras callidiscum and magnetic anom., magnetic anomalies.
title: Pistes pour une formation professionnelle dualisée
title: Roadmap to high-quality dual VET
titleType: Subtitle
Creators: name: Euler, Dieter
Publisher: name: Bertelsmann Stiftung
Year: 2023
Subjects: Formation professionelle
Formation en alternance
Dual vocational education and training
Transfer

description: Le système de formation en alternance est considéré comme un modèle de réussite dans le monde entier - mais comment ce modèle de réussite peut-il être transféré dans d'autres pays ?

Dieter Euler se penche sur cette question dans une nouvelle étude dans laquelle il divise le système de formation en alternance en différents éléments et discute de leur transférabilité à plusieurs niveaux de mise en œuvre. Son approche, fortement orientée vers la pratique et la mise en œuvre, montre à quoi peut ressembler un transfert de certains éléments et comment ceux-ci peuvent être adaptés aux conditions générales d'un pays.

L'étude est publiée en allemand, en anglais, en français et en espagnol.
Object-oriented approach to Rapid Custom Instruction design
Creators: name: Kallel, Emna
name: Aoudni, Yassine
name: Abid, Mohamed
Publisher: name: arXiv
Year: 2013
Subjects: subject: Hardware Architecture (cs.AR)
subject: FOS: Computer and information sciences

description: Due to continuous evolution of Systems-on-Chip (SoC), the complexity of their design and development has augmented exponentially. To deal with the ever-growing complexity of such embedded systems, we introduce, in this paper, an object-oriented approach to rapid SoC design using auto-generation of hardware custom instructions to simplify and accelerate the SoC design process. In our approach, a Data Flow Graph (DFG) is adopted as a representation of the arithmetic operation to convert it to a custom instruction. Then VHDL code will be automatically generated. The input C code is automatically updated for calling the new hardware components. To prove the effectiveness of the proposed approach, a Java source code framework named Automatic Custom Architecture generator (ACAgen) is developed. Experimental results on 3D sample application validate our approach and demonstrate how the proposed framework facilitates and accelerates the SoC design process at low costs.
description: IEEE 2012