cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Textile Testo e tessuto in connessione
Creators: name: Kapitanova, Anastasia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2021

description: L’avanzare della tecnologia nel campo della stampa su tessuto, ha permesso di riprodurre su stoffa qualsiasi tipo di disegno, indipendentemente dalla sua complessità, varcando così i limiti prefissati dalla tessitura manuale. E se fossero proprio i limiti a rendere speciale un progetto? I caratteri tipografici sono sempre stati adattati al supporto tessile per essere riconoscibili, escludendo la possibilità di progettarli in funzione del supporto. Tuttavia, se pensiamo all’antica arte della lavorazione a maglia, durante la creazione di un tessuto ci si avvale del sistema in griglia per comprendere - nel caso vengano usati due o più colori - in quale punto si deve fare il cambio da un colore ad un altro. Questo fa riflettere sul fatto che progettare un disegno su tessuto è essenzialmente come lavorare con dei pixel, con lo scopo di farsi un’idea sull’aspetto che avrà il lavoro finale. La mia tesi si basa sulla realizzazione di un carattere tipografico che si avvale dei fili del tessuto per essere sviluppato, prendendo come riferimento i punti base del lavoro a maglia. Vengono indagate le possibilità e i limiti che offre questo supporto, mostrando come il carattere si adatti a piccole e grandi dimensioni. Il limite diventa una regola, dal momento che un punto nel lavoro a maglia equivale al peso minimo della font. I punti del carattere determinano la sua risoluzione: quando sono ridotti delimitano la leggibilità in base al minor numero possibile di pixel, quando sono incrementati trasformano l’aspetto del carattere per mostrarne le proprie peculiarità, facendo un processo simile a quello della rasterizzazione.
Visualizing electron correlation by means of ab-initio scanning tunneling spectroscopy images of single molecules
Creators: name: Toroz, Dimitrios
name: Rontani, Massimo
name: Corni, Stefano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Scanning tunneling microscopy (STM) has been a fundamental tool to characterize many-body effects in condensed matter systems, from extended solids to quantum dots. STM of molecules decoupled from the supporting conductive substrate has the potential to extend STM characterization of many body effects to the molecular world as well. In this article, we describe a many-body tunneling theory for molecules decoupled from the STM substrate, and we report on the use of standard quantum chemical methods to calculate the quantities necessary to provide the 'correlated' STM molecular image. The developed approach has been applied to eighteen different molecules, to explore the effects of their chemical nature and of their substituents, as well as to verify the possible contribution by transition metal centers. Whereas the bulk of calculations have been performed with CISD because of the computational cost, some tests have been also performed with the more accurate CCSD method to quantify the importance of the computational level on many-body STM images. We have found that correlation induces a remarkable squeezing of the images, and that correlated images are not derived from Hartree-Fock HOMO or LUMO alone, but include contributions from other orbitals as well. Although correlation effects are too small to be resolved by present STM experiments for the studied molecules, our results provide hints for seeking out other species with larger, and possibly experimentally detectable, correlation effects.
description: Main text + Supplemental material
Stability of topological properties of bismuth (111) bilayer
Creators: name: Bieniek, M.
name: Wozniak, T.
name: Potasz, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate electronic and transport properties of bismuth (111) bilayer in the context of stability of its topological properties against different perturbations. The effects of spin-orbit coupling variations, geometry relaxation and an interaction with a substrate are considered. Transport properties are studied in the presence of Anderson disorder. Band structure calculations are performed within multi-orbital tight-binding model and density functional theory methods. A band inversion process in bismuth (111) infinite bilayer and an evolution of edge states dispersion in ribbons as a function of spin-orbit coupling strength are analyzed. A significant change of orbital composition of the conduction and valence bands during a topological phase transition is observed. A topological phase is shown to be robust when the effect of geometry relaxation is taken into account. An interaction with a substrate has similar effect to an external perpendicular electric field. The robust quantized conductance is observed when the Fermi energy lies within the bulk energy gap, where only two counter-propagating edge states are present. For energies where the Fermi level crosses more in-gap states, a scattering is possible between channels lying close in $k-$space. When the energy of edge states overlaps with bulk states, no topological protection is observed.
Anisotropic in-plane resistivity in the nematic phase of the iron pnictides
Creators: name: Fernandes, Rafael M.
name: Abrahams, Elihu
name: Schmalian, Jörg
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We show that the interference between scattering by impurities and by critical spin fluctuations gives rise to anisotropic transport in the Ising-nematic state of the iron pnictides. The effect is closely related to the non-Fermi liquid behavior of the resistivity near an antiferromagnetic quantum critical point. Our theory not only explains the observed sign of the resistivity anisotropy $Δρ$ in electron doped systems, but also predicts a sign change of $Δρ$ upon sufficient hole doping. Furthermore, our model naturally addresses the changes in $Δρ$ upon sample annealing and alkaline-earth substitution.
description: revised version accepted in PRL; supplemental material included
Quark Matter Induced Extensive Air Showers
Creators: name: Lawson, Kyle
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: If the dark matter of our galaxy is composed of nuggets of quarks or antiquarks in a colour superconducting phase there will be a small but non-zero flux of these objects through the Earth's atmosphere. A nugget of quark matter will deposit only a small fraction of its kinetic energy in the atmosphere and is likely to be undetectable. If however the impacting object is composed of antiquarks the energy deposited can be quite large. In this case nuclear annihilations within the nugget will trigger an extensive air shower the particle content of which is similar to that produced by an ultrahigh energy cosmic ray. This paper gives a qualitative description of the basic properties of such a shower. Several distinctions from an air shower initiated by a single ultra high energy nucleus will be described allowing these events to be distinguished from the cosmic ray background. The subtlety of these features may mean that some fraction of the high energy cosmic ray spectrum may in fact be due to this type of dark matter interaction. The estimated flux of dark matter nuggets and the energy deposited in the atmosphere are such that the Pierre Auger Observatory may prove an ideal facility to place constraints on the flux of heavy quark matter objects. This paper attempts to highlight the best techniques to search for a quark matter signature through an extensive air shower signal.
description: 9 pages, 2 figures, Version accepted by Phys. Rev. D
Real extensions of distal minimal flows and continuous topological ergodic decompositions
Creators: name: Greschonig, Gernot
Publisher: name: arXiv
Year: 2010
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B05, 37B20

description: We prove a structure theorem for topologically recurrent real skew product extensions of distal minimal compact metric flows with a compactly generated Abelian acting group (e.g. $\Z^d$-flows and $\R^d$-flows). The main result states that every such extension apart from a coboundary can be represented by a perturbation of a so-called Rokhlin skew product. We obtain as a corollary that the topological ergodic decomposition of the skew product extension into prolongations is continuous and compact with respect to the Fell topology on the hyperspace. The right translation acts minimally on this decomposition, therefore providing a minimal compact metric analogue to the Mackey action. This topological Mackey action is a distal (possibly trivial) extension of a weakly mixing factor (possibly trivial), and it is distal if and only if perturbation of the Rokhlin skew product is defined by a topological coboundary.
description: This paper is an extension and generalisation of http://arxiv.org/abs/0909.0192. The result has been generalised from actions of the group of integers to actions of Abelian compactly generated transformation groups. Therefore the title had to be changed (homeomorphisms vs. flows)
Band nesting, massive Dirac Fermions and Valley Lande and Zeeman effects in transition metal dichalcogenides: a tight-binding model
Creators: name: Bieniek, M.
name: Korkusiński, M.
name: Szulakowska, L.
name: Potasz, P.
name: Ozfidan, I.
name: Hawrylak, P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present here the minimal tight--binding model for a single layer of transition metal dichalcogenides (TMDCs) MX$_{2}$ (M--metal, X--chalcogen) which illuminates the physics and captures band nesting, massive Dirac Fermions and Valley Lande and Zeeman magnetic field effects. TMDCs share the hexagonal lattice with graphene but their electronic bands require much more complex atomic orbitals. Using symmetry arguments, a minimal basis consisting of 3 metal d--orbitals and 3 chalcogen dimer p--orbitals is constructed. The tunneling matrix elements between nearest neighbor metal and chalcogen orbitals are explicitly derived at $K$, $-K$ and $Γ$ points of the Brillouin zone. The nearest neighbor tunneling matrix elements connect specific metal and sulfur orbitals yielding an effective $6\times 6$ Hamiltonian giving correct composition of metal and chalcogen orbitals but not the direct gap at $K$ points. The direct gap at $K$, correct masses and conduction band minima at $Q$ points responsible for band nesting are obtained by inclusion of next neighbor Mo--Mo tunneling. The parameters of the next nearest neighbor model are successfully fitted to MX$_2$ (M=Mo, X=S) density functional (DFT) ab--initio calculations of the highest valence and lowest conduction band dispersion along $K-Γ$ line in the Brillouin zone. The effective two--band massive Dirac Hamiltonian for MoS$_2$, Lande g--factors and valley Zeeman splitting are obtained.
Chemical and mineralogical changes of two-mica Hercynian granites of the Viseu region (Central Portugal) induced by contact metamorphism of younger granites: implications for the genesis of Sn-W ore deposits
Creators: name: Neves, Luís J. P. F.
name: Godinho, Manuel M.
name: Stephens, William E.
name: Fallick, Anthony E.
Publisher: name: Zenodo
Year: 2021
Subjects: Contact metamorphism
Hercynian granites
Muscovite breakdown, Sn-W ores, Portugal
Sn-W ores, Portugal
Portugal

description: Abstract: Late Hercynian porphyritic biotite granites of the Viseu region (Central Portugal) develop a 2 km wide contact aureole on older Hercynian muscovite-biotite granites. Several textural, mineralogical and geochemical transformations were recognized in the two-mica granites of the aureole. The most relevant mineralogical transformation is the progressive breakdown of muscovite, decreasing the modal abundance on average from ca. 11% to less than 2% near the contact; muscovite is replaced by K-feldspar, which increases modally from ca. 17 to 33%. Other dehydration reactions involving the breakdown of muscovite occur within 500 m of the contact producing andalusite, sillimanite and corundum, suggesting that temperatures higher than 600 ºC were probably reached. K-feldspar is less ordered and dominantly monoclinic close to the contact. Geochemical data from the muscovite-biotite Salgueiral granite obtained along a traverse and corroborated with other regional data indicate an important decrease in the abundances of the following elements towards the contact: P2O5, H2O, Li, F, Rb, Cs, Sn, Nb and probably W. The loss of most of these elements can be explained by the breakdown of muscovite, which is an important reservoir of water and many trace elements in the two-mica granites. Mineral δ18O and δD results show that no significant interaction with meteoric water has occurred; some degree of homogenization recognized through the aureole suggests, however, that interaction with dehydration fluids of composition close to magmatic was developed. From the data, a model emerges in which the breakdown of muscovite provided the release of ore forming elements and part of the fluid necessary for the development of a closed hydrothermal system, which resulted in the generation of a large number of Sn-W ore deposits, in the form of small mineralized quartz veins spatially related to the contact aureole.
Local asymptotic equivalence of pure quantum states ensembles and quantum Gaussian white noise
Creators: name: Butucea, Cristina
name: Guta, Madalin
name: Nussbaum, Michael
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistics Theory (math.ST)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Quantum technology is increasingly relying on specialised statistical inference methods for analysing quantum measurement data. This motivates the development of "quantum statistics", a field that is shaping up at the overlap of quantum physics and "classical" statistics. One of the less investigated topics to date is that of statistical inference for infinite dimensional quantum systems, which can be seen as quantum counterpart of non-parametric statistics. In this paper we analyse the asymptotic theory of quantum statistical models consisting of ensembles of quantum systems which are identically prepared in a pure state. In the limit of large ensembles we establish the local asymptotic equivalence (LAE) of this i.i.d. model to a quantum Gaussian white noise model. We use the LAE result in order to establish minimax rates for the estimation of pure states belonging to Hermite-Sobolev classes of wave functions. Moreover, for quadratic functional estimation of the same states we note an elbow effect in the rates, whereas for testing a pure state a sharp parametric rate is attained over the nonparametric Hermite-Sobolev class.
Subordinates’ Quest for Recognition in Hierarchy
Creators: name: El Taki, Karim
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Original Articles
Hierarchy
subordination
recognition
hiérarchie
reconnaissanceResumen
jerarquía
subordinación
reconocimiento

description: The scholarship on hierarchy held the promise of exposing conditions of systemic inequality in world politics. However, a significant strand of it approached the international order from above, privileging the perspective of dominant actors. I make the case for a from-below approach to hierarchical orders, recognising and accounting for understudied experiences in world politics, but also developing a more accurate understanding of hierarchy. Through a relational-sociological approach, I conceptualise hierarchy as a socially differentiated system predicated on recognition. The experience of misrecognition by way of normative and material constraints constitutes actors as subordinates. I propose a framework for subordinate actors’ navigation of hierarchy in quest of social recognition. I identify three strategies that subordinates employ, depending on the misrecognising constraints they counter (normative/material) and the recognition they seek (internal/external). Subordinates may engage in norm appropriation, alternative leveraging, and salvation from victimhood. I demonstrate the applicability of the framework by examining Egypt’s quest for recognition in the aftermath of the 2013 military coup.
title: Predicting the Demand for Central Bank Digital Currency: A Structural Analysis with Survey Data
Creators: name: Li, Jiaqi
Publisher: name: Bank of Canada
Year: 2021

description: "Many central banks are considering whether to issue a central bank digital currency (CBDC), which would allow people to have an account at the central bank itself. To inform this decision, policy-makers are interested in knowing how much of a CBDC people would hold and what design it should have. 

This paper predicts Canadian households’ potential holdings of a CBDC and how different design features of a CBDC would affect their potential holdings. I view a CBDC and its close alternatives, cash and bank deposits, as product bundles of different features. After estimating households’ preferences for each product feature, I can predict how much of a CBDC households would want to hold based on the design features of that CBDC.

I find that under a baseline design for a CBDC, households’ total CBDC holdings can range from 4 to 52 percent of their total liquid assets. I obtain the lower bound estimate if households perceive a CBDC to be closer to cash and the upper estimate if they perceive it to be closer to bank deposits. Important design features for a CBDC include its usefulness for budgeting, anonymity, bank service bundling and rate of return. "

description: "De nombreuses banques centrales se demandent si elles devraient émettre une monnaie numérique qui permettrait de détenir un compte auprès de la banque centrale. Pour pouvoir prendre une décision éclairée à ce sujet, les autorités veulent savoir quelle quantité de monnaie numérique de banque centrale (MNBC) les gens posséderaient et quelle forme cette monnaie devrait avoir.

Ce document de travail prédit quelle quantité de MNBC les ménages canadiens seraient susceptibles de détenir et quelle serait l’incidence de diverses caractéristiques de cette monnaie sur leurs possibles avoirs en MNBC. Je considère la MNBC et ses proches équivalents, l’argent comptant et les dépôts bancaires, comme des produits regroupant différentes caractéristiques. Après avoir estimé les préférences des ménages pour chaque caractéristique, je peux prédire quelle quantité de MNBC les ménages voudraient détenir en fonction des attributs de cette monnaie.

Je constate que, selon une configuration de référence, la quantité totale de MNBC détenue par les ménages pourrait représenter de 4 à 52 % de leurs actifs liquides totaux. L’estimation la plus basse correspond à une MNBC perçue comme étant plus proche de l’argent comptant et l’estimation la plus haute est pour une MNBC perçue comme étant plus proche d’un dépôt bancaire. Parmi les caractéristiques importantes d’une MNBC, on trouve son utilité pour établir un budget, son anonymat, la possibilité de la combiner à des services bancaires et son rendement."
Ca' Rossa (Grono), Ambulatorius
Creators: name: Casari, Ylenia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2018

description: Il progetto vuole valorizzare l’architettura della Ca’ Rossa, con interventi puntuali e chirurgici nel rispetto del carattere storico dell’edificio. Un attento studio ha permesso di rispondere alle nuove esigenze funzionali con la messa a norma dei servizi igienico-sanitari e con l’inserimento di un mobilio progettato su misura nel rispetto dell’atmosfera degli ambienti.
Lie groupoids and the Frolicher-Nijenhuis bracket
Creators: name: Bursztyn, Henrique
name: Drummond, Thiago
Publisher: name: arXiv
Year: 2017
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: The space of vector-valued forms on any manifold is a graded Lie algebra with respect to the Frolicher-Nijenhuis bracket. In this paper we consider multiplicative vector-valued forms on Lie groupoids and show that they naturally form a graded Lie subalgebra. Along the way, we discuss various examples and different characterizations of multiplicative vector-valued forms.
description: 16 pages. Appeared in special volume of the Bull. Braz. Math. Society in 2013 (IMPA 60 years)
Categorification of a frieze pattern determinant
Creators: name: Baur, Karin
name: Marsh, Bethany
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 05B30 (Primary) 16G20, 18E30, 05E15 (Secondary) 13F60, 16G70, 52C99

description: Broline, Crowe and Isaacs have computed the determinant of a matrix associated to a Conway-Coxeter frieze pattern. We generalise their result to the corresponding frieze pattern of cluster variables arising from the Fomin-Zelevinsky cluster algebra of type A. We give a representation-theoretic interpretation of this result in terms of certain configurations of indecomposable objects in the root category of type A.
description: 14 pages; 8 figures. Sections 1-3 rewritten, postponing the cluster interpretation until Section 3. Minor corrections
title: Ð¡Ð¿ÐµÑÐ¸ÑÐ¸ÐºÐ° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½Ð¾-ÑÐ¼Ð¾ÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ° Ð² Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð¸Ð·ÑÑÐµÐ½Ð¸Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½Ð¾Ð³Ð¾ ÑÐ·ÑÐºÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Specifics of the development of the Social-Emotional Intelligence in the process of foreign language studying
Creators: name: Ð¢Ð°Ð»Ð°Ð½Ð¾Ð²Ð°, ÐÐ½Ð°ÑÑÐ°ÑÐ¸Ñ
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2019
Subjects: ÑÐ¾ÑÐ¸Ð¾-ÑÐ¼Ð¾ÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½ÑÐ¹ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑ
Ð¾Ð±ÑÑÐµÐ½Ð¸Ðµ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½Ð¾Ð¼Ñ ÑÐ·ÑÐºÑ
ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÐµ Ð½Ð°Ð²ÑÐºÐ¸
ÑÐ¿ÑÐ°Ð¶Ð½ÐµÐ½Ð¸Ñ Ð½Ð° Ð³Ð¾Ð²Ð¾ÑÐµÐ½Ð¸Ðµ
Ð²Ð½ÑÑÑÐ¸Ð»Ð¸ÑÐ½Ð¾ÑÑÐ½ÑÐ¹ Ð°ÑÐ¿ÐµÐºÑ
Ð¼ÐµÐ¶Ð»Ð¸ÑÐ½Ð¾ÑÑÐ½ÑÐ¹ Ð°ÑÐ¿ÐµÐºÑ
social-emotional intelligence
foreign language teaching
social skills
speaking activities
personal competence
social competence

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¸Ð·Ð»Ð¾Ð¶ÐµÐ½Ð° ÑÐ¿ÐµÑÐ¸ÑÐ¸ÐºÐ° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÐ¾ÑÐ¸Ð¾-ÑÐ¼Ð¾ÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ° ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð² ÑÐ¾Ð´Ðµ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ Ð¸Ð½Ð¾ÑÑÑÐ°Ð½Ð½ÑÐ¼ ÑÐ·ÑÐºÐ°Ð¼ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÐ¿ÑÐ°Ð¶Ð½ÐµÐ½Ð¸Ð¹ Ð½Ð° Ð³Ð¾Ð²Ð¾ÑÐµÐ½Ð¸Ðµ. ÐÐ°Ð½Ð½ÑÐ¹ ÑÐµÐ½Ð¾Ð¼ÐµÐ½ ÑÐ°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² Ð¾Ð¿ÑÐ¾ÑÐ¾Ð², Ð½Ð°ÑÐµÐ»ÐµÐ½Ð½ÑÑ Ð½Ð° Ð²ÑÑÐ²Ð»ÐµÐ½Ð¸Ðµ ÑÑÐ¾Ð²Ð½Ñ ÑÐ¾ÑÐ¸Ð¾-ÑÐ¼Ð¾ÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ° Ð¸ ÑÑÐµÐ¿ÐµÐ½Ð¸ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÐµÐ³Ð¾ ÑÐ¾ÑÑÐ°Ð²Ð»ÑÑÑÐ¸Ñ ÑÐµÑÐµÐ· ÑÐ¿ÑÐ°Ð¶Ð½ÐµÐ½Ð¸Ñ Ð½Ð° Ð³Ð¾Ð²Ð¾ÑÐµÐ½Ð¸Ðµ. ÐÑÑÐ²Ð»ÐµÐ½Ð° Ð½Ð°Ð¿ÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾ÑÑÑ Ð½Ð° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½ÑÑ Ð½Ð°Ð²ÑÐºÐ¾Ð² Ð¸ Ð½ÐµÐ´Ð¾ÑÑÐ°ÑÐ¾ÑÐ½Ð¾Ðµ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ðµ ÐºÐ¾Ð¼Ð¿Ð¾Ð½ÐµÐ½ÑÐ¾Ð² Ð²Ð½ÑÑÑÐ¸ Ð»Ð¸ÑÐ½Ð¾ÑÑÐ½Ð¾Ð³Ð¾ Ð°ÑÐ¿ÐµÐºÑÐ° ÑÐ¾ÑÐ¸Ð¾-ÑÐ¼Ð¾ÑÐ¸Ð¾Ð½Ð°Ð»ÑÐ½Ð¾Ð³Ð¾ Ð¸Ð½ÑÐµÐ»Ð»ÐµÐºÑÐ°.
description: This research presents the specifics of the development of the Social-Emotional Intelligence in the process of foreign language studying on the basis of speaking activities. This concept is studied on the basis of the survey results aimed at the level of Social-Emotional Intelligence detection and the degree of itsâ components development through the speaking activities in textbooks. The tendency of Social Skillsâ development is revealed and the insufficient level of the personal aspect of Social-Emotional Intelligence is clearly recognized.
Onto Interpolation for the Dirichlet Space and for $H_1(\mathbb{D})$
Creators: name: Chalmoukis, Nikolaos
Publisher: name: arXiv
Year: 2018
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30E05, 30H25, 30J99

description: We give a characterization of onto interpolating sequences with finite associated measure for the Dirichlet space in terms of condenser capacity. In the Sobolev space $H_1(\mathbb{D})$ we define a natural notion of onto interpolation and we prove that the same condenser capacity condition characterizes all onto interpolating sequences. As a result, for sequences with finite associated measure, the problem of interpolation by an analytic function reduces to a problem of interpolation by a function in $H_1(\mathbb{D})$.
description: 34 pages
Non-Gaussian Halo Bias Re-examined: Mass-dependent Amplitude from the Peak-Background Split and Thresholding
Creators: name: Desjacques, Vincent
name: Jeong, Donghui
name: Schmidt, Fabian
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Recent results of N-body simulations have shown that current theoretical models are not able to correctly predict the amplitude of the scale-dependent halo bias induced by primordial non-Gaussianity, for models going beyond the simplest, local quadratic case. Motivated by these discrepancies, we carefully examine three theoretical approaches based on (1) the statistics of thresholded regions, (2) a peak-background split method based on separation of scales, and (3) a peak-background split method using the conditional mass function. We first demonstrate that the statistics of thresholded regions, which is shown to be equivalent at leading order to a local bias expansion, cannot explain the mass-dependent deviation between theory and N-body simulations. In the two formulations of the peak-background split on the other hand, we identify an important, but previously overlooked, correction to the non-Gaussian bias that strongly depends on halo mass. This new term is in general significant for any primordial non-Gaussianity going beyond the simplest local fNL model. In a separate paper, we compare these new theoretical predictions with N-body simulations, showing good agreement for all simulated types of non-Gaussianity.
description: 26 pages, 3 figures (v2): minor changes from (v1). matches published version
Zero-free neighborhood around the unit circle for Kac polynomials
Creators: name: Barrera, Gerardo
name: Manrique, Paulo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary 60G99, 12D10, Secondary, 11CXX, 30C15

description: In this paper, we study how the roots of the so-called Kac polynomial $W_n(z) = \sum_{k=0}^{n-1} ξ_k z^k$ are concentrating to the unit circle when its coefficients of $W_n$ are independent and identically distributed non-degenerate real random variables. It is well-known that the roots of a Kac polynomial are concentrating around the unit circle as $n\to\infty$ if and only if $\mathbb{E}[\log( 1+ |ξ_0|)]<\infty$. Under the condition of $\mathbb{E}[ξ^2_0]<\infty$, we show that there exists an annulus of width $\mathrm{O}(n^{-2}(\log n)^{-3})$ around the unit circle which is free of roots with probability $1-\mathrm{O}({(\log n)^{-{1}/{2}}})$. The proof relies on the so-called small ball probability inequalities and the least common denominator.
description: New version. The title of the manuscript was updated
Shear strengthening of reinforced concrete beams with various composite strengthening systems
Creators: name: Kennedy, Dylan
Publisher: name: University of British Columbia
Year: 2020

description: Across Canada and around the world, damaged and aging infrastructure is a major issue facing civil engineers and infrastructure planners. Funding to replace these aging structures is unlikely to become available, therefore, economical repair techniques, which can return a structure to its original state are required. Several of those techniques are mortar adhered near surface mounted (NSM) fibre reinforced polymer (FRP) bars and fabric reinforced cementitious mortar (FRCM) wraps. These composites overcome financial and safety related concerns of previously used repair methods, while delivering similar levels of strengthening efficiency. This study was designed to investigate the effectiveness of these two composite strengthening systems on shear-damaged reinforced concrete (RC) beams with different levels of damage (1st shear crack and 70% of maximum theoretical load), adhesives (mortar and epoxy), wrapping patterns (continuous and intermittent), and different stirrup spacings (150mm or 200mm). Fifteen half-scale (200x265x2000 mm) RC beams (2 control, 6 strengthened without damage, and 7 strengthened after damage) were cast and tested under monotonic three-point bending conditions. Load, stiffness, mid-span displacement, pseudo-ductility, energy absorption, and failure mode were used as performance indicators. Results showed that most of the beams failed due to debonding failure between the strengthening material and the concrete substrate. The strengthening systems did not have a significant effect on the beams’ stiffness, however, all the strengthening systems were able to increase the load bearing capacity, the pseudo-ductility, and the energy absorption. Load bearing capacity was increased between 22% and 42%, depending on the strengthening system used. Recommendations on the maximum design strains in the different strengthening systems were also made.
IS INCREASING INPUT USE FOR RICE PRODUCTION A PROFITABLE PROPOSITION IN TANZANIA?
Creators: name: RASHID, Furaha Ndakije
name: RASHID, Furaha Ndakije
Publisher: name: Unknown
Year: 2020
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Farm Management
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Production Economics
subject: Productivity Analysis
subject: inorganic fertilizer
subject: seed
subject: profit
subject: rice
subject: Tanzania

description: Demand for food staples particularly rice has been increasing tremendously especially in Sub-Saharan Africa relative to supply attributed by a continued rise in population. The shortfall in supply is generally considered to be caused by low use of inputs particularly inorganic fertilizer and improved seed among others. Meanwhile, there is limited empirical evidence to support this notion. This paper aimed at estimating the profitability and yield response to inorganic fertilizer and improved rice seed using cross-section data collected from 256 smallholder rice farmers in Mbarali district -Tanzania. Data was analysed using treatment effect model while instrumental variable was used for robustness check. Results shows that inorganic fertilizer use in the study area is not low as generalized by previous studies. It was further revealed that increasing fertilizer and seed use by 1 kg leads to an increase in yield by 6.2 kgha-1 and 9.2 kgha-1 respectively. Furthermore, rice production is a profitable business though low marginal physical product and high fertilizer price significantly reduce the profitability of fertilizer use. Thus, reducing input costs through well-managed subsidy programs, timely accessibility of inputs coupled with irrigation facilities and good agronomic practices are crucial for sustainable and profitable agricultural development.
description: doi: 10.15414/raae.2020.23.02.54-63; https://roaae.org/issue/review-of-agricultural-and-applied-economics-raae-vol-23-no-2-2020-2/?article=is-increasing-input-use-for-rice-production-a-profitable-proposition-in-tanzania
title: ÐÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»Ð¸Ð²Ð¾Ð¼, Ð¾ÑÐ²ÐµÑÐµÐ½Ð¸ÐµÐ¼ Ð¸ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ¾Ð¹ Ð¾ÐºÑÑÐ¶Ð°ÑÑÐµÐ¹ ÑÑÐµÐ´Ñ ÐºÐ¾Ð¼Ð½Ð°ÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÑÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¸ Ð¿Ð¾Ð¼Ð¾ÑÐ¸ Ð¿ÑÐ¾Ð³ÑÐ°Ð¼Ð¼Ð¸ÑÑÐµÐ¼Ð¾Ð³Ð¾ Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Designing a control system for watering, lighting and ambient temperature of a houseplant using a programmable microcontroller
Creators: name: ÐÐ¾ÑÑÑÐ»ÐµÐ², ÐÐ¸ÑÐ°Ð¸Ð»
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð°Ñ ÑÐ¸ÑÑÐµÐ¼Ð°
ÑÐ°ÑÑÐµÐ½Ð¸Ðµ
Ð¼Ð¸ÐºÑÐ¾ÐºÐ¾Ð½ÑÑÐ¾Ð»Ð»ÐµÑ
Ð²ÐµÐ±-Ð¸Ð½ÑÐµÑÑÐµÐ¹Ñ
automated system
plant
microcontroller
web interface

description: ÐÐ°Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐµ ÑÐ¸ÑÑÐµÐ¼Ñ Ð°Ð²ÑÐ¾Ð¼Ð°ÑÐ¸Ð·Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ð³Ð¾ ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð»Ð¸Ð²Ð°, Ð¾ÑÐ²ÐµÑÐµÐ½Ð¸ÐµÐ¼ Ð¸ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ¾Ð¹ Ð¾ÐºÑÑÐ¶Ð°ÑÑÐµÐ¹ ÑÑÐµÐ´Ñ.
description: This work is devoted to the design and development of an automated control system for irrigation, illumination and ambient temperature.
Nonlinear magnetoinductive transmission lines
Creators: name: Lazarides, Nikos
name: Paltoglou, Vassilis
name: Tsironis, G. P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Physics (physics.class-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Power transmission in one-dimensional nonlinear magnetic metamaterials driven at one end is investigated numerically and analytically in a wide frequency range. The nonlinear magnetic metamaterials are composed of varactor-loaded split-ring resonators which are coupled magnetically through their mutual inductances, forming thus a magnetoiductive transmission line. In the linear limit, significant power transmission along the array only appears for frequencies inside the linear magnetoinductive wave band. We present analytical, closed form solutions for the magnetoinductive waves transmitting the power in this regime, and their discrete frequency dispersion. When nonlinearity is important, more frequency bands with significant power transmission along the array may appear. In the equivalent circuit picture, the nonlinear magnetoiductive transmission line driven at one end by a relatively weak electromotive force, can be modeled by coupled resistive-inductive-capacitive (RLC) circuits with voltage-dependent capacitance. Extended numerical simulations reveal that power transmission along the array is also possible in other than the linear frequency bands, which are located close to the nonlinear resonances of a single nonlinear RLC circuit. Moreover, the effectiveness of power transmission for driving frequencies in the nonlinear bands is comparable to that in the linear band. Power transmission in the nonlinear bands occurs through the linear modes of the system, and it is closely related to the instability of a mode that is localized at the driven site.
description: 11 pages, 11 figures, submitted to International Journal of Bifurcation and Chaos
Approximate unitary $t$-designs by short random quantum circuits using nearest-neighbor and long-range gates
Creators: name: Harrow, Aram
name: Mehraban, Saeed
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove that $poly(t) \cdot n^{1/D}$-depth local random quantum circuits with two qudit nearest-neighbor gates on a $D$-dimensional lattice with n qudits are approximate $t$-designs in various measures. These include the "monomial" measure, meaning that the monomials of a random circuit from this family have expectation close to the value that would result from the Haar measure. Previously, the best bound was $poly(t)\cdot n$ due to Brandao-Harrow-Horodecki (BHH) for $D=1$. We also improve the "scrambling" and "decoupling" bounds for spatially local random circuits due to Brown and Fawzi. One consequence of our result is that assuming the polynomial hierarchy (PH) is infinite and that certain counting problems are $\#P$-hard on average, sampling within total variation distance from these circuits is hard for classical computers. Previously, exact sampling from the outputs of even constant-depth quantum circuits was known to be hard for classical computers under the assumption that PH is infinite. However, to show the hardness of approximate sampling using this strategy requires that the quantum circuits have a property called "anti-concentration", meaning roughly that the output has near-maximal entropy. Unitary 2-designs have the desired anti-concentration property. Thus our result improves the required depth for this level of anti-concentration from linear depth to a sub-linear value, depending on the geometry of the interactions. This is relevant to a recent proposal by the Google Quantum AI group to perform such a sampling task with 49 qubits on a two-dimensional lattice and confirms their conjecture that $O(\sqrt n)$ depth suffices for anti-concentration. We also prove that anti-concentration is possible in depth O(log(n) loglog(n)) using a different model.
description: This is the second version with minor updates on the previous article
КОНСТИТУЦІЙНІ ЗАСАДИ ФОРМУВАННЯ ТА ДІЯЛЬНОСТІ МУНІЦИПАЛЬНОЇ МІЛІЦІЇ (ПОЛІЦІЇ): ПОРІВНЯЛЬНО-ПРАВОВЕ ДОСЛІДЖЕННЯ
Creators: name: Orlov, Viktor
Publisher: name: figshare
Year: 2021
Subjects: subject: 180108 Constitutional Law
subject: FOS: Law

description: Дисертація на здобуття наукового ступеня кандидата юридичних наук за спеціальністю 12.00.02 - конституційне право; муніципальне право. - Харківський національний університет імені В.Н. Каразіна. - Харків, 2017. Дисертація представляє собою комплекс наукових досліджень, спрямування на визначення сутності, організації, форм та аспектів діяльності муніципальної міліції (поліції) в Україні. Актуальність дослідження базується на необхідності формування та розвитку інституту муніципальної міліції (поліції), а також пошук нових форм охорони громадського порядку на місцевому рівні. У роботі досліджується еволюція муніципальної міліції (поліції), досвід організації та діяльність муніципальної поліції за кордон, сучасні форми її розвитку, правове та економічне забезпечення становлення муніципальної міліції (поліції) в Україні. Загальногрунтоване науково-підготовче формування організацій діяльності муніципальної міліції (поліції) на сучасному етапі розвитку держави та пропонування варіантів забезпечення матеріально-технічної та фінансово-бюджетної основи муніципальної міліції (поліції). У результаті дослідження вироблено конкретні пропозиції, складові моделі, які можуть бути використані під час забезпечення розвитку муніципальної міліції (поліції).
Coherent Cherenkov radio pulses from hadronic showers up to EeV energies
Creators: name: Alvarez-Muniz, Jaime
name: Carvalho, Washington R.
name: Tueros, Matias
name: Zas, Enrique
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Cherenkov radio pulse emitted by hadronic showers in ice is calculated for showers of energies in the EeV range. This is obtained with three dimensional simulations of both shower development and the coherent radio pulse emitted as the excess charge develops in the shower. A Monte Carlo, ZHAireS, has been developed for this purpose combining the high energy hadronic interaction capabilities of AIRES, and the dense media propagation capabilities of TIERRAS, with the precise low energy tracking and specific algorithms developed to calculate the radio emission in ZHS. A thinning technique is implemented and optimized to allow the simulation of radio pulses induced by showers up to 10 EeV in ice. The code is validated comparing the results for electromagnetic and hadronic showers to those obtained with GEANT4 and ZHS codes. The contribution to the pulse of other shower particles in addition to electrons and positrons, mainly pions and muons, is found to be below 1%. The characteristics of hadronic showers and the corresponding Cherenkov frequency spectra are compared with those from purely electromagnetic showers. The dependence of the spectra on shower energy and high-energy hadronic model is addressed and parameterizations for the radio emission in hadronic showers in ice are given for practical applications.
description: Replaced with version published in Astroparticle Physics
FixMiner: Mining Relevant Fix Patterns for Automated Program Repair
Creators: name: Koyuncu, Anil
name: Liu, Kui
name: Bissyandé, Tegawendé F.
name: Kim, Dongsun
name: Klein, Jacques
name: Monperrus, Martin
name: Traon, Yves Le
Publisher: name: arXiv
Year: 2018
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Patching is a common activity in software development. It is generally performed on a source code base to address bugs or add new functionalities. In this context, given the recurrence of bugs across projects, the associated similar patches can be leveraged to extract generic fix actions. While the literature includes various approaches leveraging similarity among patches to guide program repair, these approaches often do not yield fix patterns that are tractable and reusable as actionable input to APR systems. In this paper, we propose a systematic and automated approach to mining relevant and actionable fix patterns based on an iterative clustering strategy applied to atomic changes within patches. The goal of FixMiner is thus to infer separate and reusable fix patterns that can be leveraged in other patch generation systems. Our technique, FixMiner, leverages Rich Edit Script which is a specialized tree structure of the edit scripts that captures the AST-level context of the code changes. FixMiner uses different tree representations of Rich Edit Scripts for each round of clustering to identify similar changes. These are abstract syntax trees, edit actions trees, and code context trees. We have evaluated FixMiner on thousands of software patches collected from open source projects. Preliminary results show that we are able to mine accurate patterns, efficiently exploiting change information in Rich Edit Scripts. We further integrated the mined patterns to an automated program repair prototype, PARFixMiner, with which we are able to correctly fix 26 bugs of the Defects4J benchmark. Beyond this quantitative performance, we show that the mined fix patterns are sufficiently relevant to produce patches with a high probability of correctness: 81% of PARFixMiner's generated plausible patches are correct.
description: 31 pages, 11 figures
Prozessorientierung als möglicher Beitrag zur Förderung der Schreibkompetenz von L2-Lernenden
Creators: name: Janner, Christine
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2016

description: Die vorliegende Arbeit befasst sich mit einem Ansatz, der an die prozessorientierte Schreibdidaktik anlehnt und als möglicher Beitrag zur Förderung der Schreibkompetenz von gymnasialen L2- Lernenden gelten soll. Prozessorientierung zerlegt den Schreibprozess in Teilschritte, die einzeln behandelt werden: das Planen, das Verfassen und das Überarbeiten. Ziel ist, Lernenden Schreibstrategien zu vermitteln. Das Augenmerk der Arbeit liegt auf der Überarbeitungsphase, deren wichtiger Bestandteil die Schreibkonferenz ist. Es handelt sich dabei um eine Methode, die in Deutschland für die Grundschule bekannt geworden ist und die vorsieht, dass sich Lernende in einer Gruppe gegenseitig Feedback auf ihre Textentwürfe geben. Vor der didaktischen Intervention wurde die Hypothese formuliert, dass sich Prozessorientierung auch bei L2-Lernenden als vorteilhaft erweisen kann. Die Daten, die aus der Analyse der während der didaktischen Intervention verfassten und überarbeiteten Schülertexte hervorgehen, zeigen, dass die meisten Überarbeitungen auf formaler Ebene vorgenommen wurden. Obwohl die Auseinandersetzung mit der inhaltlichen Ebene verbesserungsbedürftig ist, beweisen die hier gewonnenen Erkenntnisse, dass die Schreibkonferenz, die insgesamt dreimal durchgeführt wurde, die Qualität der Texte erhöht hat. Relatore: Gé Stoks. Materia: tedesco
“Miracolo di San Francesco d’Assisi” in Santa Maria del Sasso a Morcote. Analisi delle tecniche e dello stato di conservazione
Creators: name: Brescia, Chiara
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2015

description: La tesi è stata svolta con l’obiettivo di approfondire le informazioni storico-artistiche e lo stato di conservazione del dipinto murale raffigurante un Miracolo di San Francesco d’Assisi all’interno della chiesa di Santa Maria del Sasso a Morcote.
Disegnare per scrivere: il disegno può favorire l'apprendimento dell'orografia in prima elementare?
Creators: name: Lucchinetti, Andreina
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2022
Subjects: scrittura
ortografia
disegno
etichettatura e competenze

description: Il bambino inizia a comunicare attraverso un’attività simbolica utilizzando il disegno. Il passaggio alla scrittura è dovuto sia alla necessità di rappresentare la realtà secondo una certa convenzionalità dettata dalla società sia alla sua curiosità verso questo nuovo codice. È ormai dimostrato che il disegno è un trampolino di lancio per l’apprendimento della scrittura, ma non è ancora chiaro se e come quest’ultimo possa aiutare i bambini nel passaggio alla fase ortografica convenzionale. È per rispondere a questa domanda che nel percorso didattico qui presentato (rivolto a una prima elementare), sono state proposte attività di scoperta e allenamento dei nessi ortografici “ci”, “ce”, “chi” e “che” sfruttando l’etichettatura di disegni prodotti dai bambini. Per favorire il confronto, l’apprendimento di “gi”, “ge”, “ghi” e “ghe” è avvenuto senza l’ausilio del disegno. I dati raccolti hanno mostrato che attività di etichettatura effettuate sulla base di disegni dei bambini e inserite all’interno di un percorso volto all’apprendimento di “ci”, “ce”, “chi” e “che” possono sviluppare le competenze ortografiche. È altresì da tenere in considerazione che anche l’apprendimento delle norme ortografiche “gi”, “ge”, “ghi” e “ghe” avvenuto senza l’ausilio del disegno ha incrementato le competenze ortografiche degli allievi. Può dunque essere interessante affiancare il disegno all’apprendimento dell’ortografia, soprattutto se si riflette in ottica motivazionale. Relatrice: Silvia Demartini.
Quantum isometry groups of duals of free powers of cyclic groups
Creators: name: Banica, Teodor
name: Skalski, Adam
Publisher: name: arXiv
Year: 2010
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: Primary: 46L65, Secondary: 16W30, 46L54, 58J42

description: We study the quantum isometry groups of the noncommutative Riemannian manifolds associated to discrete group duals. The basic representation theory problem is to compute the law of the main character of the relevant quantum group, and our main result here is as follows: for the group Z_s^{*n}, with s>4 and n>1, half of the character follows the compound free Poisson law with respect to the measure $\underlineε$/2, where $ε$ is the uniform measure on the s-th roots of unity, and $ε\to\underlineε$ is the canonical projection map from complex to real measures. We discuss as well a number of technical versions of this result, notably with the construction of a new quantum group, which appears as a "representation-theoretic limit", at s equal to infinity.
description: 23 pages, in v2 some proofs are modified and expanded (notably that of Theorem 3.5), a few illustrations of the operations related to the considered categories of partitions added and some typos corrected. The paper will appear in the International Mathematics Research Notices