cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tomographic reconstruction of quantum correlations in excited Bose-Einstein condensates
Creators: name: Mouritzen, Anders S.
name: Molmer, Klaus
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We propose to use quantum tomography to characterize the state of a perturbed Bose-Einstein condensate. We assume knowledge of the number of particles in the zero-wave number mode and of density distributions in space at different times, and we treat the condensate in the Bogoliubov approximation. For states that can be treated with the Gross-Pitaevskii equation, we find that the reconstructed density operator gives excellent predictions of the second moments of the atomic creation- and annihilation operators, including the one-body density matrix. Additional inclusion of the momentum distribution at one point of time enables somewhat reliable predictions to be made for the second moments for mixed states, making it possible to distinguish between coherent and thermal perturbations of the condensate. Finally, we find that with observation of the zero-wave number mode's anomalous second moment the reconstructed density operator gives reliable predictions of the second moments of locally amplitude squeezed states.
description: 12 pages, 7 figures
Structure of mesoscopic Coulomb balls
Creators: name: Ludwig, P.
name: Kosse, S.
name: Bonitz, M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: An analysis of the structural properties of three-dimensional Coulomb clusters confined in a spherical parabolic trap is presented. Based on extensive high accuracy computer simulations the shell configurations and energies for particle numbers in the range $60 \le N\le 160$ are reported. Further, the intrashell symmetry and the lowest metastable configurations are analyzed for small clusters and a novel type of excited state which does not involve a change of shell configuration is identified.
The braid groups of the projective plane
Creators: name: Goncalves, Daciberg Lima
name: Guaschi, John
Publisher: name: arXiv
Year: 2004
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: Primary: 20F36, 55R80, Secondary: 55Q52, 20F05

description: Let B_n(RP^2)$ (respectively P_n(RP^2)) denote the braid group (respectively pure braid group) on n strings of the real projective plane RP^2. In this paper we study these braid groups, in particular the associated pure braid group short exact sequence of Fadell and Neuwirth, their torsion elements and the roots of the `full twist' braid. Our main results may be summarised as follows: first, the pure braid group short exact sequence 1 --> P_{m-n}(RP^2 - {x_1,...,x_n}) --> P_m(RP^2) --> P_n(RP^2) --> 1 does not split if m > 3 and n=2,3. Now let n > 1. Then in B_n(RP^2), there is a k-torsion element if and only if k divides either 4n or 4(n-1). Finally, the full twist braid has a k-th root if and only if k divides either 2n or 2(n-1).
description: Published by Algebraic and Geometric Topology at http://www.maths.warwick.ac.uk/agt/AGTVol4/agt-4-33.abs.html
Lithologic Controls on Silicate Weathering Regimes of Temperate Planets
Creators: name: Hakim, Kaustubh
name: Bower, Dan J.
name: Tian, Meng
name: Deitrick, Russell
name: Auclair-Desrotour, Pierre
name: Kitzmann, Daniel
name: Dorn, Caroline
name: Mezger, Klaus
name: Heng, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Weathering of silicate rocks at a planetary surface can draw down CO$_2$ from the atmosphere for eventual burial and long-term storage in the planetary interior. This process is thought to provide an essential negative feedback to the carbonate-silicate cycle (carbon cycle) to maintain clement climates on Earth and potentially similar temperate exoplanets. We implement thermodynamics to determine weathering rates as a function of surface lithology (rock type). These rates provide upper limits that allow estimating the maximum rate of weathering in regulating climate. This modeling shows that the weathering of mineral assemblages in a given rock, rather than individual minerals, is crucial to determine weathering rates at planetary surfaces. By implementing a fluid-transport controlled approach, we further mimic chemical kinetics and thermodynamics to determine weathering rates for three types of rocks inspired by the lithologies of Earth's continental and oceanic crust, and its upper mantle. We find that thermodynamic weathering rates of a continental crust-like lithology are about one to two orders of magnitude lower than those of a lithology characteristic of the oceanic crust. We show that when the CO$_2$ partial pressure decreases or surface temperature increases, thermodynamics rather than kinetics exerts a strong control on weathering. The kinetically- and thermodynamically-limited regimes of weathering depend on lithology, whereas, the supply-limited weathering is independent of lithology. Our results imply that the temperature-sensitivity of thermodynamically-limited silicate weathering may instigate a positive feedback to the carbon cycle, in which the weathering rate decreases as the surface temperature increases.
description: Accepted for publication in The Planetary Science Journal
Real-time simulation of (2+1)-dimensional lattice gauge theory on qubits
Creators: name: Yamamoto, Arata
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quantum simulation of Z2 lattice gauge theory in 2+1 dimensions. The dual variable formulation, the so-called Wegner duality, is utilized for reducing redundant gauge degrees of freedom. The problem of artificial charge unconservation is resolved for any charge distribution. As a demonstration, we simulate the real-time evolution of the system with two static electric charges, i.e., with two temporal Wilson lines. Some results obtained by the simulator (with no hardware noise) and the real device (with sizable hardware noise) of a quantum computer are shown.
Note bibliografiche: Perrotta C. e Sunna C. (a cura di): L’arretratezza del Mezzogiorno. Le idee, l’economia, la storia,
Creators: name: Zamagni, Vera
Publisher: name: Moneta e Credito
Year: 2013

description: Moneta e Credito, V. 65, N. 260 (2012)
Conformal aspects of Palatini approach in Extended Theories of Gravity
Creators: name: Allemandi, Gianluca
name: Capone, Monica
name: Capozziello, Salvatore
name: Francaviglia, Mauro
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The debate on the physical relevance of conformal transformations can be faced by taking the Palatini approach into account to gravitational theories. We show that conformal transformations are not only a mathematical tool to disentangle gravitational and matter degrees of freedom (passing from the Jordan frame to the Einstein frame) but they acquire a physical meaning considering the bi-metric structure of Palatini approach which allows to distinguish between spacetime structure and geodesic structure. Examples of higher-order and non-minimally coupled theories are worked out and relevant cosmological solutions in Einstein frame and Jordan frames are discussed showing that also the interpretation of cosmological observations can drastically change depending on the adopted frame.
Polarized rigid del Pezzo surfaces in low codimension
Creators: name: Qureshi, Muhammad Imran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10, 14M07

description: We provide explicit graded constructions of orbifold del Pezzo surfaces with rigid orbifold points of type $\left\{k_i\times\frac{1}{r_i}(1,a_i): 3\le r_i \le 10,k_i \in \ZZ_{\ge 0}\right\}$; as well-formed and quasismooth varieties embedded in some weighted projective space. In particular, we present a collection of 147 such surfaces such that their image under their anti-canonical embeddings can be described by using one of the following sets of equations: a single equation, two linearly independent equations, five maximal Pfaffians of $5\times 5$ skew symmetric matrix, and nine $2\times 2$ minors of size 3 square matrix. This is a complete classification of such surfaces under certain carefully chosen bounds on the weights of ambient weighted projective spaces and it is largely based on detailed computer-assisted searches by using the computer algebra system \textsc{magma}.
description: 22 pages, 5 tables, An improved version after a referee's comments
Josef Steindl: un economista del suo tempo. (Josef Steindl: An Economist of His Time)
Creators: name: Shapiro, Nina
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: Great Depression, economic stagnation, capitalist development
subject: E6, O4

description: Questo documento discute la vita e il lavoro di Josef Steindl.Esamina lo sviluppo del suo pensiero dai suoi primi scritti su dimensioni solide e concentrazione industriale ai suoi ultimi lavori sui problemi postbellici delle economie capitaliste.Particolare attenzione viene data al suo fondamentale lavoro sulla Grande Depressione: Maturità e stagnazione nel capitalismo americano (1952).Il suo lavoro, che copriva tutti gli sviluppi economici critici del 20 ° secolo, ha grandemente illuminato i problemi dei suoi tempi, ed è tanto rilevante per i problemi dei nostri tempi quanto per i suoi. This paper discusses the life and work of Josef Steindl. It examines the development of his thought from his early writings on firm size and industrial concentration to his late work on the post-war problems of capitalist economies. Special attention is given to his seminal work on the Great Depression: Maturity and Stagnation in American Capitalism (1952). His work, which covered all the critical economic developments of the 20th century, greatly illuminated the problems of his times, and is as relevant to the problems of our own as it was to his. JEL: E6, O4
description: Moneta e Credito, V. 65, N. 260 (2012)
La domanda effettiva nel breve e nel lungo periodo.(Effective Demand in the Short and the Long Run)
Creators: name: Steindl, Josef
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: effective demand, long run, public debt, distribution of income
subject: E11, B50, E12, H63

description: L'articolo è una traduzione di un manoscritto originale di Josef Steindl, contenente un documento che ha presentato all'edizione 1990 della "Scuola estiva internazionale per studi economici avanzati" (la Scuola di Trieste). Il manoscritto, scritto nel luglio del 1990, si occupa del finanziamento a breve e a lungo termine della domanda effettiva e delle sue conseguenze sulla distribuzione del reddito e sulla sostenibilità del debito e della crescita economica, e contiene numerosi approfondimenti ancora oggi molto rilevanti. The article is a translation of an original manuscript by Josef Steindl, containing a paper he presented at the 1990 edition of the “International Summer School for Advanced Economic Studies” (the Trieste School). The manuscript, written in July of 1990, deals with the short and long-run financing of effective demand, and its consequences on the distribution of income and the sustainability of debt and of economic growth, and contains several insights still very relevant today. JEL: E11, B50, E12, H63
description: Moneta e Credito, V. 65, N. 260 (2012)
The Renormalization Group, Systems of Units and the Hierarchy Problem
Creators: name: Percacci, Roberto
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the context of the Renormalization Group (RG) for gravity I discuss the role of field rescalings and their relation to choices of units. I concentrate on a simple Higgs model coupled to gravity, where natural choices of units can be based on Newton's constant or on the Higgs mass. These quantities are not invariant under the RG, and the ratio between the units is scale-dependent. In the toy model, strong RG running occurs in the intermediate regime between the Higgs and the Planck scale, reproducing the results of the Randall-Sundrum I model. Possible connections with the problem of the mass hierarchy are pointed out.
description: Plain TEX, 16 pages. Some revisions, some references added
Uma Análise da Demanda por Combustíveis Através do Modelo Almost Ideal Demand System para Pernambuco
Creators: name: Almeida, Edilberto Tiago De
name: Justo, Wellington Ribeiro
name: Oliveira, Monaliza Ferreira De
name: Silva, Carla Calixto Da
name: Almeida, Edilberto Tiago De
name: Justo, Wellington Ribeiro
name: Oliveira, Monaliza Ferreira De
name: Silva, Carla Calixto Da
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Demand
subject: Fuel
subject: LA-AIDS
subject: SUR.

description: The fuel market has been widely studied at several perspectives, from the issue of asymmetry and transmission prices, cartels, dynamics linked to price fluctuations in the international economy, demand systems, among others. Thus, this paper aims to estimate a demand system for regular gasoline, hydrous ethanol and diesel via (LA-AIDS) Linear Approximation Almost Ideal Demand System with quarterly time series data for the period 2001-2015 in Pernambuco State (Brazil). The estimates were made using (SUR) Seemingly Unrelated Regressions. The results are similar to those observed in the literature, pointing to the inelasticity-price of demand for gasoline and diesel, which is expected given the essentiality of the assets. It was also observed that the demand for ethanol is elastic because of Marshallian price elasticity greater than one in absolute value, leading to the results already found in other studies.
Magnetorotational core collapse of possible GRB progenitors. III. Three-dimensional models
Creators: name: Obergaulinger, Martin
name: Aloy, Miguel-Ángel
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We explore the influence of non-axisymmetric modes on the dynamics of the collapsed core of rotating, magnetized high-mass stars in three-dimensional simulations of a rapidly rotating star with an initial mass of $M_{ZAMS}$ = 35 solar masses endowed with four different pre-collapse configurations of the magnetic field, ranging from moderate to very strong field strength and including the field predicted by the stellar evolution model. The model with the weakest magnetic field achieves shock revival due to neutrino heating in a gain layer characterized by a large-scale, hydrodynamic m = 1 spiral mode. Later on, the growing magnetic field of the proto-neutron star launches weak outflows into the early ejecta. Their orientation follows the evolution of the rotational axis of the proto-neutron star, which starts to tilt from the original orientation due to the asymmetric accretion flows impinging on its surface. The models with stronger magnetization generate mildly relativistic, magnetically driven polar outflows propagating over a distance of $10^4$ km within a few 100 ms. These jets are stabilized against disruptive non-axisymmetric instabilities by their fast propagation and by the shear of their toroidal magnetic field. Within the simulation times of around 1 s, the explosions reach moderate energies and the growth of the proto-neutron star masses ceases at values substantially below the threshold for black hole formation, which, in combination with the high rotational energies, might suggest a possible later proto-magnetar activity.
description: 22 pages, 24 figures; accepted for publication in MNRAS
Introduzione: sulle cause reali della crisi finanziaria. (Introduction: On the Real Causes of the Financial Crisis)
Creators: name: D'Ippoliti, Carlo
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: aggregate demand, long-run dynamics, trade surpluses
subject: F32, E25, E12

description: L'articolo introduce al presente numero, rivedendone i contenuti e ponendoli nel contesto dell'attuale crisi europea.Evidenzia brevemente la rilevanza dell'articolo pubblicato da Josef Steindl in questo numero per la prima volta, così come l'articolo di Nina Shapiro sull'economista austriaco.Questi contributi forniscono l'occasione per discutere la questione spesso trascurata delle conseguenze a lungo termine di diverse forme di stimolo della domanda aggregata, come i deficit fiscali o le eccedenze delle partite correnti.Tale questione evidenzia alcune delle cause economiche reali a lungo termine della recente crisi finanziaria, consentendo così di aggirare efficacemente la falsa dicotomia tra variabili reali e finanziarie. The article introduces to the present issue, reviewing its contents and placing them in the context of the current European crisis. It shortly highlights the relevance of the article by Josef Steindl published in this issue for the first time, as well as the article by Nina Shapiro on the Austrian economist. These contributions provide the occasion to discuss the often neglected issue of the long-run consequences of several forms of stimulus of aggregate demand, such as fiscal deficits or current account surpluses. Such issue highlights some long-run real economic causes of the recent financial crisis, thus allowing to effectively bypass the false dichotomy between real and financial variables. JEL: F32, E25, E12
description: Moneta e Credito, V. 65, N. 260 (2012)
Aplicação da Metodologia Multicritério de Apoio à Decisão no Relacionamento Interorganizacional na Cadeia da Avicultura de Corte
Creators: name: Reck, Ângelo Brambila
name: Schultz, Glauco
name: Reck, Ângelo Brambila
name: Schultz, Glauco
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Agribusiness
subject: Poultry production
subject: Supply chain
subject: Interorganizational relationship
subject: Multi-criteria.

description: The poultry production is an important source of protein for human consumption. Understanding the inter-relationship in this environment is essential to reduce operating and transaction costs. This work aims to build a multi-criteria evaluation model of the relationship between an agribusiness and its integrated producers in the city of Seara, Santa Catarina, evaluating the possible effects on the competitiveness of the supply chain. We conducted a case study with theoretical approach to supply chain management, complemented by microanalytical approach of competitive strategies. It conducted quantitative and qualitative research and used the multi-criteria analysis methodology to support constructivist decision (MCDA-C) for the construction and interpretation of the model. We used instrument and carried out interviews with farmers, agribusiness representatives and poultry specialists. The agents defined production cost, remuneration, factors of production, investment risk, information flow and institutional environment as the fundamental points of view (FPV) model. It was found with the application of the model in three classes of farmers that FPV´s remuneration, investment risk, downstream flow of information supply chain and production costs, had greater impact on the inter-relationships to achieve competitiveness in chain.
U–Pb zircon geochronology. Patterns of Silurian deformation and magmatism during sinistral oblique convergence, northern Scottish Caledonides.
Creators: name: R.A. Strachan
name: G.I. Alsop
name: J. Ramezani
name: R.E. Frazer
name: I.M. Burns
name: R.E. Holdsworth
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: U–Pb zircon geochronology.
Il ruolo delle istituzioni nell’economia: introduzione.(The role of institutions in economics: introduction)
Creators: name: Roncaglia, Alessandro
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: introduction, institutions, crisis
subject: E11, B52, A12

description: The article introduces the papers published in the present issue. It does so by elaborating a few comments on the role of institutions for economic development and how should economics analyse institutions.
description: Moneta e Credito, V. 66, N. 261 (2013)
Evolução do Mercado Brasileiro de Biodiesel sob a Ótica dos Leilões Promovidos pela ANP: 2005 a 2014
Creators: name: Amaral, Laila Cristina Gonçalves Silva
name: Abreu, Yolanda Vieira De
name: Amaral, Laila Cristina Gonçalves Silva
name: Abreu, Yolanda Vieira De
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Biodiesel
subject: Public auctions
subject: Market concentration
subject: Factors of influence.

description: The National Biodiesel Production and Use Program (PNPB) was created so as to introduce biodiesel in the Brazilian energy matrix. Biodiesel is mainly commercialized through auctions regulated by the National Oil, Natural Gas and Biofuel Agency (ANP) to ensure the adequate functioning of the stock system due to the progressive increase in the mandatory adding of biodiesel to diesel fuel. The aim of this study was to identify the factors influencing the evolution of the Brazilian biodiesel market from a supply perspective as a result of the public auctions held by the ANP. The results of the study showed that, initially, the Brazilian biodiesel market is concentrated. However, with the increase in the number of participating companies, the percentage of mandatory mixture and the improvements in the legislation regarding the PNPB and the auctions, the market has become moderately concentrated. The study also found that the biodiesel sector may be characterized as pure oligopoly, where there are no differences among products, few companies are responsible for most of the production and there are barriers to entry due to the requirements that must be met by the companies to participate in the auctions.
Quantum theory of vortex lattice state in a rotating Bose-Einstein condensate
Creators: name: Bhattacherjee, Aranya B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study system of large number of singly quantized vortices in a rotating Bose-Einstein condensate. Analogous to the Meissner effect in superconductors, we show that the vector potential due to the external rotational field can be tuned to cancel the vector potential due to the Magnus field, resulting in a zero average angular momentum and a shear modulus of the vortex lattice. The vortex lattice state exhibits two states, namely, an elastic state and a plastic state. A clear distinction between these states is controlled by the filling fraction, which is the ratio of the number of bosons to the average number of vortices.
description: In Pdf format
Immunomoduatory properties of host defence peptide LL-37 during infection and inflammation in human blood cells
Creators: name: Yu, Jie
Publisher: name: University of British Columbia
Year: 2011

description: The human cathelicidin, LL-37, is a cationic host defence peptide and serves as an essential component of innate immunity. In addition to its modest antimicrobial activity, LL-37 has been demonstrated to be a multifunctional modulator of innate immune responses, although the mechanism(s) of which have not been elucidated. The present study demonstrated that LL-37 could synergistically enhance IL-1β-induced production of cytokines (IL-6, IL-10) and chemokines (MCP-3) in primary human PBMCs. In contrast to the neutralization of LPS-induced secretion of pro-inflammatory cytokines, LL-37 dramatically augmented LPS-stimulated MCP-3 production. LL-37 by itself induced transient phosphorylation of IkB-α. and the subsequent nuclear translocation of NF - kB subunits p50 and p65, which could be further enhanced in the presence of IL-1β. Similar effects of LL-37 and I L-1β were also observed oh activation of Akt and CREB. Therefore, we propose that, in addition to its well-known anti-inflammatory activity, the human host defence peptide LL-37 also plays an important role in boosting the innate immune responses in combination with inflammatory mediator (IL-1β), which provides a new mechanism for LL-37 in modulating the inflammatory responses in innate immunity.
A Influência do Preço dos Hortifrutícolas no IPCA: uma análise por meio da curva de Phillips
Creators: name: Carrara, Aniela Fagundes
name: Barros, Geraldo Sant’Ana De Camargo
name: Carrara, Aniela Fagundes
name: Barros, Geraldo Sant’Ana De Camargo
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: Prices
subject: IPCA
subject: Supply shocks
subject: Horticultural products.

description: Supply shocks have frequently been related to the behavior of inflation. Those shocks are in general measured by changes in commodity prices (minerals, oil, agricultural commodities, etc.). The objective of this paper is to examine the influence of supply shocks caused by changes in prices of horticultural products (perishable with short cycles) exert in the Brazilian inflation. Although not quite studied academically, this process has popularly been associated with important variations on the IPCA index. To deal with this process, a Phillips curve, following New Keynesians principles, based on the semi structural model of small size by the Brazilian Central Bank and the estimation method used was Auto-regression with Vector Error Correction (VEC) in its structural version. The results show that there is evidence that the prices of horticultural products may have a considerable participation in the IPCA and inflation expectations variations and their shocks produce effects that persist for several months in the trajectory of these two variables.
A polynomial model for predicting shear wave velocity from cone penetration test data
Creators: name: Afkham, Sina Lahijani
name: Abolfazl Najafi
Publisher: name: figshare
Year: 2020
Subjects: subject: 90501 Civil Geotechnical Engineering
subject: FOS: Civil engineering

description: Shear wave velocity (Vs) is known to be an essential soil parameter for site characterization purposes. Although shear wave velocity can be directly measured, indirect determination using common in-situ tests, entailing cone penetration test (CPT), are often preferred by engineers. In this paper, the relation between Vs and CPT parameters is reinvestigated and a new polynomial regression form is proposed to correlate shear wave velocity with cone tip resistance, sleeve friction, and vertical effective stress. Using a dataset obtained from several sites in Canada, Japan, Norway, Italy, and China, the performance of the presented correlation is appraised through comparison with the observed data as well as formerly published CPT-Vs equations. The results demonstrate that the suggested functional form provides a more reliable approach for predicting shear wave velocity and thus, can ostensibly be regarded as an improvement to the currently adopted practices
Differential Mapping Spiking Neural Network for Sensor-Based Robot Control
Creators: name: Zahra, Omar
name: Tolu, Silvia
name: Navarro-Alarcon, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work, a spiking neural network (SNN) is proposed for approximating differential sensorimotor maps of robotic systems. The computed model is used as a local Jacobian-like projection that relates changes in sensor space to changes in motor space. The SNN consists of an input (sensory) layer and an output (motor) layer connected through plastic synapses, with inter-inhibitory connections at the output layer. Spiking neurons are modeled as Izhikevich neurons with a synaptic learning rule based on spike-timing-dependent plasticity. Feedback data from proprioceptive and exteroceptive sensors are encoded and fed into the input layer through a motor babbling process. As the main challenge to building an efficient SNN is to tune its parameters, we present an intuitive tuning method that considerably reduces the number of neurons and the amount of data required for training. Our proposed architecture represents a biologically plausible neural controller that is capable of handling noisy sensor readings to guide robot movements in real-time. Experimental results are presented to validate the control methodology with a vision-guided robot.
description: 11 pages, 11 figures. Bioinspir. Biomim 2021
Table S2. Summary of calculated U–Pb ages and their uncertainties. Patterns of Silurian deformation and magmatism during sinistral oblique convergence, northern Scottish Caledonides.
Creators: name: R.A. Strachan
name: G.I. Alsop
name: J. Ramezani
name: R.E. Frazer
name: I.M. Burns
name: R.E. Holdsworth
Publisher: name: Geological Society of London
Year: 2020
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Table S2. Summary of calculated U–Pb ages and their uncertainties.
L'unione bancaria europea e la stabilizzazione dell'Eurozona.(The European Banking Union and the stabilisation of the Eurozone)
Creators: name: Sarcinelli, Mario
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: Banking Union, Euro, european crisis, financial stability, unione bancaria, crisi, euro
subject: G01, G18, G28

description: The economic governance of the Eurozone has been substantially improved in the last two years. However, the Eurozone still exhibits a dramatic coordination failure. Economic growth is being invoked, without anybody acting to make it realise. If a common macroeconomic stabilisation device was in place, it may have been possible to sustain growth without imposing new stress on public finances. Moreover, mechanisms of risk sharing, in the form of a fiscal backstop, are also a necessary component of any banking union.
description: Moneta e Credito, V. 66, N. 261 (2013)
title: Logistikzentrum am Alberner Hafen
Creators: name: Mayregger, Hanno
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Industriebau
subject: Logistik
subject: Infrastruktur
subject: Industrial Building
subject: Logistics
subject: Infrasructure

description: In dieser Arbeit sollen Typologien der Logistik erforscht und auf ihre Aktualität überprüft werden. Die oftmals an den Knotenpunkten einer logistischen Versorgungskette liegenden Gebäude, deren Hauptaufgaben das Bündeln und Verteilen von Warenströmen ist, prägen die Peripherien unserer Städte. Wolfgang Lehmacher beschreibt Logistik als eine gesamtheitliche Koordination von Waren- und Informationsbewegungen von der Quelle bis zur Senke. Somit entstehen weltweite Netzwerke von Güterströmen die sich überlappen und ergänzen können. Ein neuralgischer Punkt des weltweiten Warenverkehrs ist das Grundstück zwischen Autobahnknoten Schwechat und dem Hafen Albern. Eine Anbindung an das Schienennetz, durch bereits bestehende Logistikinfrastruktur, bietet die Möglichkeit an diesem Grundstück eine multimodales Logistikzentrum entstehen zu lassen. In Folge bildet eine generische Raumanalyse der zur verknüpfenden räumlichen Anforderungen die Grundlage fürspezifische Raumstudien. Ziel dieser Arbeit ist es eine neue Typologie des Warenumschlags zu entwickeln
description: The object of this thesis is the research and analysis of logistics and distribution typologies. Those typologies are located on the outskirts of cities at intersections of various supply chains. Their main task is consolidation and distribution of all kinds of goods. Logistics is the science of planning, organizing and managing activities that provide goods or services from the source to the object. Assuming that the source is in a different country than the object, this is the foundation of globally connected supply chains. The building site is located on one intersection of several supply chains. The Area between the highway intersection, Knoten Schwechat and the harbour Albern is, because of existing logistic infrastructure, also connected to the rail network. Given those conditions the object is to create a structure that provides consolidation and distribution of goods between those lines of communication. Generic spatial analysis will provide the foundation for further specifi c structural designs.The aim of this thesis is the development of a new typology for logistical infrastructure.
Assessment of confinement models for reinforced concrete columns subjected to seismic loading
Creators: name: Riederer, Kevin Allen
Publisher: name: University of British Columbia
Year: 2011

description: Research conducted over the past several years has shown that factors such as axial load level and the amount and spacing of confinement steel influence the performance of reinforced concrete columns subjected to seismic loading. The aim of this research project was to investigate the performance of the current ACI 318 confining steel requirements and compare them to other codes and proposed models to determine their suitability for a performance based design equation for implementation in Chapter 21 of ACI 318. The investigation was performed by analyzing the results of multiple reverse-cyclic column tests presented in the UW/PEER Structural Performance Database. The condensed database used in this investigation consisted solely of columns which exhibited flexural failure and contained 145 rectangular and 50 circular columns. First, a scatter plot was used to compare the confining requirements of each model with the lateral drift observed for each column within the database. The plot showed the drift ratio achieved by the column test versus a ratio of lateral steel Ash provided over that which is required by ACI (Ash provided / Ash ACI)- A drift ratio of 2.5% was selected as the performance target for the evaluation. Columns were identified as those which satisfied the requirements of the model but failed the performance target ('unconservative') or those which failed the requirements of the model but satisfied the performance target ('conservative'). For each model, the percentage of columns falling into these classifications was calculated and compared. Two fragility curves were generated for each model which provided the probability of a column being classified as 'unconservative' or 'conservative' as a function of drift ratio. A third curve was a combination of the first two and provided insight as to the overall performance of the model. For both the rectangular and circular column evaluations, the ACI model was determined to be the least desirable of all models investigated. Based on the evaluation techniques developed, specific models were selected as recommended alternatives to the current ACI requirements. The recommended models minimize the potential of a column experiencing lateral strength degradation before reaching the prescribed lateral drift limit.
La ‘scuola’ italiana di scienza delle finanze.(The Italian ‘school’ of public economics)
Creators: name: Dallera, Giuseppe
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: public choice, Italian school, scienza delle finanze, James Buchanan
subject: B15, B21, D71, D72

description: The article summarises the evolution of the Italian school of public finance, highlighting those themes that most attracted James Buchanan's interest. It considers such topics as the operations of the fiscal authorities, the Leviatan monopolist, financial delusion, public debt theory, and the theory of taxation.
description: Moneta e Credito, V. 66, N. 261 (2013)
Meglio che arare. (Better than ploughing)
Creators: name: Buchanan, James M.
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: public choice, James Buchanan, autobiography
subject: B31, D71, D72

description: Contributo a una serie di ricordi e riflessioni sulle esperienze professionali di eminenti economisti.Articolo originariamente pubblicato nel vol.39 n.159 della Rassegna trimestrale Banca Nazionale del Lavoro. Contribution to a series of recollections and reflections on professional experiences of distinguished economists. Article originally published in vol. 39 n. 159 of Banca Nazionale del Lavoro Quarterly Review. JEL: B31, D71, D72
description: Moneta e Credito, V. 66, N. 261 (2013)
Strukturális átalakulás a kelet-közép-európai országok mezőgazdaságában: konvergencia vagy divergencia?
Creators: name: Fertő, Imre
name: Fertő, Imre
Publisher: name: Unknown
Year: 2016
Subjects: subject: International Relations/Trade
subject: strukturális átalakulás
subject: Kelet-Közép-Európa
subject: konvergencia
subject: structural transformation
subject: Central and Eastern Europe
subject: convergence

description: A cikk a kelet-közép-európai országok mezőgazdaságának strukturális átalakulását elemzi makroadatok segítségével az 1990 és 2011 közötti időszakban. A mezőgazdaság szerepe a foglalkoztatottságban és GDP-ben, illetve az élelmiszer-kiadások aránya mindegyik vizsgált országban csökkent. Eredményeink ugyanakkor arra utalnak, hogy a hasonló tendenciák ellenére a kiinduló állapotban meglévő különbségek fennmaradtak az egyes országok között. A panelegységgyök-próbák nem erősítették meg a konvergencia hipotézisét a régió strukturális átalakulásában.---------The paper investigates the structural transformation of agriculture in Central and Eastern European countries using macro data from the period between 1990 and 2011. The role of agriculture in total employment and GDP, and the share of food expenditure have declined in all of the analysed countries during the period in question. The results indicate that despite the common trend the initial differences between countries have remained. The findings of panel unit root tests do not confirm the convergence hypothesis in the agricultural structural transformation of the region.
Mid-21st century anthropogenic changes in extreme precipitation and snowpack projections over Newfoundland
Creators: name: Abbasnezhadi, Kian
name: Rousseau, Alain N.
name: Bohrn, Steven
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: Science Policy

description: Extreme precipitation events, including probable maximum precipitation (PMP) and probable maximum snow accumulation (PMSA) and 1/100 annual exceedance probability (AEP) values for precipitation (P100) and snow accumulation (expressed in snow water equivalent; SWE100) were analyzed over Newfoundland to compute the projected changes from 1971–2000 to 2041–2070. PMP and PMSA of various storm durations were simulated based on the moisture maximization of high efficiency storms. Also, P100 and SWE100 data were calculated based on the frequency analysis of liquid precipitation and snowpack data during each 30-year period. The required meteorological variables, including liquid and solid precipitation, precipitable water content, and snow accumulation, defined over a 50 × 50 km grid, were extracted from an ensemble of six regional climate model simulations provided by the North American Regional Climate Change Assessment Program (NARCCAP). Projections indicated that while PMP and P100 are intensifying in the future period, PMSA and SWE100 are declining. This is the first study which quantifies the impact of climate change on extreme-value characteristics of precipitation in Newfoundland. The results of the study can help stakeholders throughout the province to gain a better understanding of the impact of global warming on extreme meteorological events. Such an understanding is prerequisite to build resiliency and understand the uncertainty related to standard probable maximum flood analysis in the region.
Note bibliografiche: Ramazzotti P., Frigato P. e Elsner W. (a cura di): Social Costs Today. Institutional Analyses of the Present
Creators: name: Corsi, Marcella
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: sviluppo civile, sviluppo economico, crisi
subject: E0

description: It is in the direction of assessing how the crisis should be placed in the context of the relationship between civil development and economic development, which the author has enjoyed some of the ideas from the book edited by Ramazzotti et al., and in this article, it takes up the steps. È nella direzione di valutare come le crisi vadano collocate nelcontesto della relazione tra sviluppo civile e sviluppo economico, che l'autore ha apprezzato alcuni degli spunti provenienti dal volume curato daRamazzotti et al., e in questo articolo, ne riprende dei passaggi. JEL Codes: E0
description: Moneta e Credito, V. 66, N. 261 (2013)
Entanglement view of dynamical quantum phase transitions
Creators: name: De Nicola, Stefano
name: Michailidis, Alexios A.
name: Serbyn, Maksym
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The analogy between an equilibrium partition function and the return probability in many-body unitary dynamics has led to the concept of dynamical quantum phase transition (DQPT). DQPTs are defined by non-analyticities in the return amplitude and are present in many models. In some cases DQPTs can be related to equilibrium concepts such as order parameters, yet their universal description is an open question. In this work we provide first steps towards a classification of DQPTs by using a matrix product state description of unitary dynamics in the thermodynamic limit. This allows us to distinguish the two limiting cases of precession and entanglement DQPTs, which are illustrated using an analytical description in the quantum Ising model. While precession DQPTs are characterized by a large entanglement gap and are semiclassical in their nature, entanglement DQPTs occur near avoided crossings in the entanglement spectrum and can be distinguished by a complex pattern of non-local correlations. We demonstrate the existence of precession and entanglement DQPTs beyond Ising model, discuss observables that can distinguish them and relate their interplay to complex DQPT phenomenology.
description: v2: accepted version, minor changes; 5 pages, 2 figures (main text) + 7 pages, 9 figures (appendix)
The Pierre Auger Observatory: Science Prospects and Performance at First Light
Creators: name: Anchordoqui, Luis A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Pierre Auger Observatory is a major international effort aiming at high-statistics study of highest energy cosmic rays. A general description of the experimental set-up and overall performance of the detector at first light are presented.
description: Contribution to the Proceedings of PASCOS '04
Pubblicazioni ricevute
Creators: name: Moneta E Credito, Redazione
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: Pubblicazioni, volume, saggio
subject: E0

description: Introduzione ad una serie di pubblicazioni ricevute. JEL Codes: E0 Keywords: Pubblicazioni, volume, saggio
description: Moneta e Credito, V. 66, N. 261 (2013)
Gerbes, M5-Brane Anomalies and E_8 Gauge Theory
Creators: name: Aschieri, Paolo
name: Jurco, Branislav
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Abelian gerbes and twisted bundles describe the topology of the NS-NS 3-form gauge field strength H. We review how they have been usefully applied to study and resolve global anomalies in open string theory. Abelian 2-gerbes and twisted nonabelian gerbes describe the topology of the 4-form field strength G of M-theory. We show that twisted nonabelian gerbes are relevant in the study and resolution of global anomalies of multiple coinciding M5-branes. Global anomalies for one M5-brane have been studied by Witten and by Diaconescu, Freed and Moore. The structure and the differential geometry of twisted nonabelian gerbes (i.e. modules for 2-gerbes) is defined and studied. The nonabelian 2-form gauge potential living on multiple coinciding M5-branes arises as curving (curvature) of twisted nonabelian gerbes. The nonabelian group is in general $\tildeΩE_8$, the central extension of the E_8 loop group. The twist is in general necessary to cancel global anomalies due to the nontriviality of the 11-dimensional 4-form G field strength and due to the possible torsion present in the cycles the M5-branes wrap. Our description of M5-branes global anomalies leads to the D4-branes one upon compactification of M-theory to Type IIA theory.
description: 19 pages
Decoherence as Detector of the Unruh Effect
Creators: name: Nesterov, Alexander I
name: Berman, Gennady P
name: Fernández, Manuel A Rodríguez
name: Wang, Xidi
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a new type of the Unruh-DeWitt detector which measures the decoherence of the reduced density matrix of the detector interacting with the massless quantum scalar field. We find that the decoherence decay rates are different in the inertial and accelerated reference frames. We show that the exponential phase decay can be observed for relatively low accelerations, that can significantly improve the conditions for measuring the Unruh effect.
description: 7 pages, 3 figures
Implicazioni di Basilea II per la stabilità finanziaria. Le nuvole si addensano sui paesi in via di sviluppo.
Creators: name: Tonveronachi, Mario
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: Basilea II, paesi in via di sviluppo
subject: E44, F53, G21, G28, O16

description: Placing Basel II in the perspective of the more general trend in financial regulation, the paper analyses its efficacy an efficiency as a device ti foster financial resiliency. In assessing the criticism levelled against the New Accord, special attention is devoted to the case of the emerging countries. I suggest that Basel II is neither a sufficient, nor a necessary condition to attain systematic financial stability, especially in weak institutional and macro-policy environments. Taking also into account just how complex and onerous the scheme is, I conclude that the emerging countries should look for new international institutional arrangements based on the principle of a stability level playing field. JEL Codes: E44, F53, G21, G28, O16
description: Moneta e Credito, V. 60, N. 238 (2007)