cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Aspettando ISON
Creators: Maria Teresa Fulco
Publisher: name: Media Inaf
Year: 2013

La cometa ISON il 28 novembre sarà alla sua massima vicinanza dal Sole e la sua chioma dovrebbe farsi più fluente, poi inizierà ad avvicinarsi al nostro pianeta giungendo a soli 60 milioni di chilometri proprio la notte di Natale, quando potremo vederla rifulgere costantemente nel cielo. L'arrivo della cometa e importante sia dal punto di vista scientifico che dello spettacolo e tante sono le iniziative organizzate per l'occasione dagli istituti e dagli osservatori dell'INAF
Sei nuove stelle sopra LBT
Creators: Stefano Parisini
Publisher: name: Media Inaf
Year: 2013

Puntati verso il cielo per la prima volta i laser del sistema di ottiche adattive ARGOS al telescopio LBT in Arizona. I laser generano delle stelle artificiali che permettono, attraverso un complesso meccanismo frutto anche dell’ingegno italiano, di correggere le distorsioni prodotte dall’atmosfera.
10 miliardi di anni in un lampo
Creators: Andrea Giuliani
Publisher: name: Media Inaf
Year: 2013

Lo scorso otto novembre è stato registrato un Gamma Ray Burst di elevatissima potenza e con un redshift di 2.4, equivalente a 10 miliardi di anni luce e con un'energia sprigionata mille volte superiore a quella prodotta dal Sole in tutta la sua vita. A registrare l'evento i satelliti AGILE e Fermi
Il trio galattico all’alba dell’Universo
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2013

Un gruppo di ricercatori guidati da un professore dell'Università di Tokyo ha scoperto un gruppo di galassie primitive a 13 miliardi di anni luce di distanza circondate da un involucro di gas caldo ionizzato. Himiko, fotografato quando l'Universo aveva 800 milioni di anni, ha una particolarità interessante: l'assenza completa di carbonio, elemento alla base della formazione stellare, e una abbondanza di elementi leggeri.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÐºÐ¾Ð½Ð²ÐµÐ¹ÐµÑÐ½Ð¾Ð³Ð¾ ÐÐ¦Ð Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ 2,5-Ð±Ð¸ÑÐ½ÑÑ ÐºÐ°ÑÐºÐ°Ð´Ð¾Ð² ÑÐ¾ ÑÐ½Ð¸Ð¶ÐµÐ½Ð½Ð¾Ð¹ Ð¿Ð¾ÑÑÐµÐ±Ð»ÑÐµÐ¼Ð¾Ð¹ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ
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
Creators: name: Ð¡Ð¸Ð´ÑÐ½, ÐÐ»ÐµÐºÑÐ°Ð½Ð´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: 2018
Subjects: Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð¹ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ
ÐºÐ¾Ð½Ð²ÐµÐ¹ÐµÑÐ½ÑÐ¹ ÐÐ¦Ð
ÐºÐ¾Ð¼Ð¿Ð°ÑÐ°ÑÐ¾Ñ
ÐÐÐÐ
ÐºÐ¾Ð»ÑÑÐµÐ²Ð¾Ð¹ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÐºÐ¾Ð½Ð²ÐµÐ¹ÐµÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð¹ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ.
Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ â ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÐºÐ¾Ð½Ð²ÐµÐ¹ÐµÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ 2,5-Ð±Ð¸ÑÐ½ÑÑ ÐºÐ°ÑÐºÐ°Ð´Ð¾Ð² ÑÐ¾ ÑÐ½Ð¸Ð¶ÐµÐ½Ð½Ð¾Ð¹ Ð¿Ð¾ÑÑÐµÐ±Ð»ÑÐµÐ¼Ð¾Ð¹ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐ°Ð½Ð° Ð¼Ð¾Ð´ÐµÐ»Ñ ÐºÐ¾Ð½Ð²ÐµÐ¹ÐµÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ 2,5-Ð±Ð¸ÑÐ½ÑÑ ÐºÐ°ÑÐºÐ°Ð´Ð¾Ð² Ð² Matlab/Simulink. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð¾ ÑÑÐµÐ¼Ð½Ð¾Ðµ ÑÐµÑÐµÐ½Ð¸Ðµ ÐºÐ¾Ð»ÑÑÐµÐ²Ð¾Ð³Ð¾ ÑÑÐ¸Ð»Ð¸ÑÐµÐ»Ñ Ð´Ð»Ñ ÐºÐ¾Ð½Ð²ÐµÐ¹ÐµÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¾Ð³Ð¾Ð²Ð¾-ÑÐ¸ÑÑÐ¾Ð²Ð¾Ð³Ð¾ Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°ÑÐµÐ»Ñ ÑÐ¾ ÑÐ½Ð¸Ð¶ÐµÐ½Ð½Ð¾Ð¹ Ð¿Ð¾ÑÑÐµÐ±Ð»ÑÐµÐ¼Ð¾Ð¹ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑÑ.
Quel mostro di lampo gamma
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2013

Doppio record per GRB 130427A: è l’evento che ha prodotto i fotoni di più alta energia mai osservati e ha brillato in raggi gamma per oltre 20 ore. Il lampo gamma è stato seguito e studiato da ricercatori di tutto il mondo con i migliori telescopi spaziali e da Terra. L’enorme mole di dati raccolta viene presentata oggi in quattro articoli pubblicati sulle riviste Science online e The Astrophysical Journal  ai quali hanno collaborato numerosi ricercatori italiani e dell’INAF. Alessandro Maselli, post-doc dell’IASF di Palermo è il primo autore dello studio su Science coordinato dal team italiano di Swift.
Euler characteristics of moduli spaces of torsion free sheaves on toric surfaces
Creators: name: Kool, Martijn
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J60, 14M25 (Primary) 14N20, 14F45 (Secondary)

description: Given a smooth toric variety $X$, the action of the torus $T$ lifts to the moduli space $\mathcal{M}$ of stable sheaves on $X$. Using the pioneering work of Klyacho, a fairly explicit combinatorial description of the fixed point locus $\mathcal{M}^T$ can be given (as shown by earlier work of the author). In this paper, we apply this description to the case of torsion free sheaves on a smooth toric surface $S$. A general expression for the generating function of the Euler characteristics of such moduli spaces is obtained. The generating function is expressed in terms of Euler characteristics of certain moduli spaces of stable configurations of linear subspaces appearing in classical GIT. The expression holds for any choice of $S$, polarization, rank, and first Chern class. Specializing to various examples allows us to compute some new as well as known generating functions.
description: 30 pages. Published version. Results unchanged. Completely rewritten in order to improve exposition and notation following the referee's suggestions
V819 Tau: A Rare Weak-Lined T Tauri Star with a Weak Infrared Excess
Creators: name: Furlan, E.
name: Forrest, W. J.
name: Sargent, B. A.
name: Manoj, P.
name: Kim, K. H.
name: Watson, Dan M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We use Spitzer data to infer that the small infrared excess of V819 Tau, a weak-lined T Tauri star in Taurus, is real and not attributable to a "companion" 10 arcsec to the south. We do not confirm the mid-infrared excess in HBC 427 and V410 X-ray 3, which are also non-accreting T Tauri stars in the same region; instead, for the former object, the excess arises from a red companion 9 arcsec to the east. A single-temperature blackbody fit to the continuum excess of V819 Tau implies a dust temperature of 143 K; however, a better fit is achieved when the weak 10 and 20 micron silicate emission features are also included. We infer a disk of sub-micron silicate grains between about 1 AU and several 100 AU with a constant surface density distribution. The mid-infrared excess of V819 Tau can be successfully modeled with dust composed mostly of small amorphous olivine grains at a temperature of 85 K, and most of the excess emission is optically thin. The disk could still be primordial, but gas-poor and therefore short-lived, or already at the debris disk stage, which would make it one of the youngest debris disk systems known.
description: 7 pages, 7 figures; accepted for publication in ApJ
Quantum error correction on infinite-dimensional Hilbert spaces
Creators: name: Bény, Cédric
name: Kempf, Achim
name: Kribs, David W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a generalization of quantum error correction to infinite-dimensional Hilbert spaces. The generalization yields new classes of quantum error correcting codes that have no finite-dimensional counterparts. The error correction theory we develop begins with a shift of focus from states to algebras of observables. Standard subspace codes and subsystem codes are seen as the special case of algebras of observables given by finite-dimensional von Neumann factors of type I. Our generalization allows for the correction of codes characterized by any von Neumann algebra and we give examples, in particular, of codes defined by infinite-dimensional algebras.
Solutions of Minimal Four Dimensional de Sitter Supergravity
Creators: name: Gutowski, J. B.
name: Sabra, W. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Pseudo-supersymmetric solutions of minimal $N=2$, $D=4$ de Sitter supergravity are classified using spinorial geometry techniques. We find three classes of solutions. The first class of solution consists of geometries which are fibrations over a 3-dimensional manifold equipped with a Gauduchon-Tod structure. The second class of solution is the cosmological Majumdar-Papapetrou solution of Kastor and Traschen, and the third corresponds to gravitational waves propagating in the Nariai cosmology.
description: 17 Pages. Minor correction to section 4; equation (4.21) corrected and (old) equation (4.26) deleted; the final result is unchanged
Role of loop entropy in the force induced melting of DNA hairpin
Creators: name: Mishra, Garima
name: Giri, D.
name: Li, M. S.
name: Kumar, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Dynamics of a single stranded DNA, which can form a hairpin have been studied in the constant force ensemble. Using Langevin dynamics simulations, we obtained the force-temperature diagram, which differs from the theoretical prediction based on the lattice model. Probability analysis of the extreme bases of the stem revealed that at high temperature, the hairpin to coil transition is entropy dominated and the loop contributes significantly in its opening. However, at low temperature, the transition is force driven and the hairpin opens from the stem side. It is shown that the elastic energy plays a crucial role at high force. As a result, the phase diagram differs significantly with the theoretical prediction.
description: 9 pages, 8 figures; J. Chem. Phys (2011)
Supplementary Table S2 from Shaped by the Sun: the effect of exposure to sunlight on the evolution of spider bodies
Creators: name: Ferreira-Sousa, Leonardo
name: Rocha, Pedro N.
name: Motta, Paulo C.
name: Gawryszewski, Felipe M.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Sun-exposure of Neotropical genera of Araneidae spiders with the references used for classification. DZUB: Arachnological Collection of the University of Brasília. UFMG-ARA: Coleção de Arachnida das Coleções Taxonômicas da UFMG.
Correlation of Acute M1 Middle Cerebral Artery Thrombus Location with Endovascular Treatment Success and Clinical Outcome
Creators: name: Zeenat Qureshi Stroke Institutes
Publisher: name: Zenodo
Year: 2023

description: Abstract

Purpose

The location of the arterial occlusion can help with prognostication and treatment triage of acute stroke patients. We aimed to determine the effects of M1 distance-to-thrombus on angiographic recanalization success rate and clinical outcome following endovascular treatment of acute M1 occlusion.

Methods

All acute ischemic stroke patients with M1 segment middle cerebral artery (MCA) occlusion on admission CT angiography (CTA) who underwent endovascular treatment were analyzed. The distance between thrombus origin and internal carotid artery (ICA) bifurcation was measured on admission CTA. The modified thrombolysis in cerebral infarction (mTICI) grades 2b (>50% of distal branch filling) and 3 (complete) were considered as successful recanalization. Favorable outcome was defined by 3-month follow-up modified Rankin scale (mRs) score ≤2.

Results

Successful recanalization was achieved in 24 (71%) of 34 consecutive patients included in this study. The M1 distance-to-thrombus was shorter among patients with successful recanalization (5.4 ± 5.4 mm) versus those without (11.3 ± 7.6 mm, p = 0.015). The successful recanalization rate was higher among patients with M1 distance-to-thrombus ≤6 mm (odds ratio: 8, 95% confidence interval: 1.37–46.81, p = 0.023) compared with those with distance-to-thrombus >6 mm. There was no significant correlation between M1 distance-to-thrombus and 3-month mRs (rho: 0.131, p = 0.461); however, the distance-to-thrombus negatively correlated with admission National Institutes of Health Stroke Scale (NIHSS) scores (rho: −0.350, p=0.043). On the other hand, successful recanalization and admission NIHSS score were the only independent predictors of favorable outcome.
Antiphase magnetic boundaries in iron-based superconductors: A first-principle density-functional theory study
Creators: name: Yin, Z. P.
name: Pickett, W. E.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Superconductivity arises in the layered iron-pnictide compounds when magnetic long range order disappears. We use first principles density functional methods to study magnetic arrangements that may compete with long range order near the phase boundary. Specifically, we study the energetics and charge density distribution (through calculation of the electric field gradients) for ordered supercells with varying densities of antiphase magnetic boundaries. We quantify the amount by which Fe atoms with low spin moments at the antiphase boundaries have higher energies than Fe atoms with high spin moments away from the antiphase boundaries. These disruptions in magnetic order should be useful in accounting for experimental data such as electric field gradients and hyperfine fields on both Fe and As atoms.
description: 7 pages, 2 figures, and 4 tables
RELATO DE EXPERIÊNCIA DA PRÁTICA ALFABETIZADORA NO PROGRAMA NACIONAL NA IDADE CERTA (PNAIC)
Creators: name: Oliveira, Lucia Paula Novaes
name: Evanilda Soares E Silva
name: De Figueiredo Souza, Ester Maria
Publisher: name: Zenodo
Year: 2021
Subjects: Formação de professores
.Alfabetização
Letramento,

description: Esse relato de experiência surge da minha participação como coordenadora local e orientadora de Estudo no Programa Nacional de Alfabetização na Idade Certa (PNAIC) no município de Cordeiros - Bahia. As considerações aqui expostas convergem para realçar a participação de professoras na formulação de programas educacionais e na melhoria da qualidade da educação municipal. O PNAIC aconteceu nos anos 2013 a 2015 e seu objetivo era o de assegurar que todas as crianças fossem alfabetizadas nos três primeiros anos do Ensino Fundamental, ao final do 1º Ciclo de Alfabetização. Como programa do âmbito federal buscou parceria com os governos estaduais, municipais e instituições com implementação de ações que se integrassem ao programa. O pacto tinha quatro eixos de atuação: Formação Continuada de Professores Alfabetizadores, Material Didático e Pedagógico, Avaliações e Gestão, Controle Social e Mobilização. Os materiais didáticos e pedagógicos, e os cadernos de estudos para a formação continuada dos professores que atuavam nas classes de Alfabetização tinham como foco a Alfabetização e Letramento.
Supplementary Table S1 from Shaped by the Sun: the effect of exposure to sunlight on the evolution of spider bodies
Creators: name: Ferreira-Sousa, Leonardo
name: Rocha, Pedro N.
name: Motta, Paulo C.
name: Gawryszewski, Felipe M.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: List of araneid genera with neotropical representatives, followed by the references that contains dorsal pictures or illustrations used to collect data on female body size and shape, and our classification of sun-exposure. Species known only by male specimens or without dorsal images of females were not included.
Apollo e la polvere lunare
Creators: Matteo De Giuli
Publisher: name: Media Inaf
Year: 2013

Un nuovo studio mostra come sulla Luna la polvere si accumuli molto più velocemente di quanto creduto. Potrebbe essere una prova a favore della presenza di correnti di polvere carica che viaggiano al di sopra della sua superficie. La ricerca ha analizzato alcuni dati raccolti durante le missioni Apollo che si credevano persi per sempre e che sono stati ritrovati solo da poco.
Sintonizzati su ISON
Creators: Stefano Parisini
Publisher: name: Media Inaf
Year: 2013

Il terzetto di antenne paraboliche dell'INAF seguirà l’avvicinamento della cometa ISON al Sole per rintracciare molecole costituenti le basi chimiche della vita o peculiari fenomeni fisici osservabili solo in queste occasioni.
Chandra svela il getto di Sgr A*
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2013

È debole ma c'è. I dati dell'osservatorio orbitante della NASA e del VLA confermano che il getto di particelle ad alte energie al centro della nostra galassia esiste. Dopo decenni di ricerche e tentativi, gli studiosi avrebbero trovato delle prove. Sagittarius A* è poco attivo negli ultimi secoli e per questo anche il suo getto risulta poco visibile ai telescopi.
Gravitational eigenstates in weak gravity I: dipole decay rates of charged particles
Creators: name: Ernest, A D
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The experimental demonstration that neutrons can reside in gravitational quantum stationary states formed in the gravitational field of the Earth indicates a need to examine in more detail the general theoretical properties of gravitational eigenstates. Despite the almost universal study of quantum theory applied to atomic and molecular states very little work has been done to investigate the properties of the hypothetical stationary states that should exist in similar types of gravitational central potential wells, particularly those with large quantum numbers. In this first of a series of papers, we attempt to address this shortfall by developing analytic, non-integral expressions for the electromagnetic dipole state-to-state transition rates of charged particles for any given initial and final gravitational quantum states. The expressions are non-relativistic and hence valid provided the eigenstate wavefunctions do not extend significantly into regions of strong gravity. The formulae may be used to obtain tractable approximations to the transition rates that can be used to give general trends associated with certain types of transitions. Surprisingly, we find that some of the high angular momentum eigenstates have extremely long lifetimes and a resulting stability that belies the multitude of channels available for state decay.
description: 25 pages, 2 tables, 2 figures
title: Электротехника. Электроника. Схемотехника. Часть 1
title: Практикум
titleType: Subtitle
Creators: name: Рыжов В.А.
name:  Пузынин Н.Г.
Publisher: name: Новосибирский государственный университет экономики и управления «НИНХ»
Year: 2017

description: Практикум предназначен для формирования у студентов практических навыков в сфере использования современных методов проектирования, анализа схем и устройств электротехники, электроники и схемотехники путем проведения лабораторных работ на мобильных стендах KL-210 и в виртуальной среде Multisim. Первая часть практикума направлена на обучение анализу и измерению электрических параметров различных устройств большим числом методов. Практикум подготовлен в соответствии с ФГОС ВПО для студентов специальности 10.03.01 «Информационная безопасность» всех форм обучения.
description: The workshop is designed to develop students practical skills in the use of modern methods of design, analysis circuits and devices electrical engineering, electronics and circuitry by carrying out laboratory works on mobile stands KL-210 in the virtual environment Multisim. The first part of the workshop focuses on teaching analysis and measurement of electrical parameters of various devices, a large number of methods. The workshop has been prepared in accordance with GEF VPO for students majoring 10.03.01 Information security all forms of learning.
Le nonne brune
Creators: Giulia Bonelli
Publisher: name: Media Inaf
Year: 2013

Scoperte due nane brune fino a oggi sconosciute, che avrebbero più di dieci miliardi di anni. Potrebbero far parte di una vasta, e ancora sconosciuta, popolazione stellare. Tra gli autori dello studio una ricercatrice dell’Osservatorio Astronomico INAF di Torino.
Symmetry protection of topological order in one-dimensional quantum spin systems
Creators: name: Pollmann, Frank
name: Berg, Erez
name: Turner, Ari M.
name: Oshikawa, Masaki
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We discuss the characterization and stability of the Haldane phase in integer spin chains on the basis of simple, physical arguments. We find that an odd-$S$ Haldane phase is a topologically non-trivial phase which is protected by any one of the following three global symmetries: (i) the dihedral group of $π$-rotations about $x,y$ and $z$ axes; (ii) time-reversal symmetry $S^{x,y,z} \rightarrow - S^{x,y,z}$; (iii) link inversion symmetry (reflection about a bond center), consistently with previous results [Phys. Rev. B \textbf{81}, 064439 (2010)]. On the other hand, an even-$S$ Haldane phase is not topologically protected (i.e., it is indistinct from a trivial, site-factorizable phase). We show some numerical evidence that supports these claims, using concrete examples.
description: 9 pages, 6 figures, extended version: several new examples and numerical results added. Journal reference added
title: Ð¡Ð¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÐ´ÑÑ ÑÐµÑ Ð½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÐÐ "Ð¡Ð£Ð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
Creators: name: ÐÐ¾ÑÑÑÐ½Ð½Ð¸ÐºÐ¾Ð²Ð°, ÐÐºÐ°ÑÐµÑÐ¸Ð½Ð°
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: 2018
Subjects: ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÑ
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ÑÑÐ°ÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð´Ð¾Ð¿ÑÑÐºÐ¸

description: ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ ÐÐ Â«Ð¡Ð£ÐÐ Â» Ð³. Ð¡ÐµÐ²ÐµÑÐ¾ÑÑÐ°Ð»ÑÑÐº. Ð¦ÐµÐ»ÑÑ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ ÑÐ²Ð»ÑÐµÑÑÑ ÑÐ¾Ð²ÐµÑÑÐµÐ½ÑÑÐ²Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÐ´ÑÑ ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ Ð½Ð° Ð¿ÑÐ¾Ð¸Ð·Ð²Ð¾Ð´ÑÑÐ²ÐµÐ½Ð½Ð¾Ð¼ Ð¿ÑÐµÐ´Ð¿ÑÐ¸ÑÑÐ¸Ð¸ Ð¸ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾Ðµ ÑÑÐ°ÑÑÐ¸Ðµ Ð² ÑÐµÑÐµÐ½Ð¸Ð¸ Ð¿Ð¾ÑÑÐ°Ð²Ð»ÐµÐ½Ð½Ð¾Ð¹ Ð·Ð°Ð´Ð°ÑÐ¸. Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ ÑÑÐ´ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ¾Ð², Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð¿ÑÐ¾Ð²ÐµÐ»Ð¸ ÑÑÐ°ÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ð¹ Ð°Ð½Ð°Ð»Ð¸Ð·. Ð Ð°ÑÑÑÐ¸ÑÐ°Ð»Ð¸ ÑÑÐµÐ´Ð½ÐµÐºÐ²Ð°Ð´ÑÐ°ÑÐ¸ÑÐ½Ð¾Ðµ Ð¾ÑÐºÐ»Ð¾Ð½ÐµÐ½Ð¸Ðµ, Ð¿Ð¾Ð³ÑÐµÑÐ½Ð¾ÑÑÑ Ð¸ ÑÑÐ°ÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð´Ð¾Ð¿ÑÑÐºÐ¸.
Marte cambia i connotati agli asteroidi
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2013

Uno studio di ricercatori del MIT ha confermato che anche il Pianeta rosso contribuisce a modificare la struttura superficiale degli asteroidi, nonostante Marte sia più piccolo della Terra è abbia meno forza gravitazionale. Il 10% degli asteroidi studiati, infatti, non ha mai transitato vicino al nostro pianeta. Abilità simili potrebbe averle anche Venere.
Bis di pulsar per LOFAR
Creators: Marco Malaspina
Publisher: name: Media Inaf
Year: 2013

Le sue 25 mila antenne sono da poco a disposizione degli scienziati, ma già ha catturato gli elusivi segnali radio provenienti da due stelle di neutroni. Brunettti (INAF): «Speriamo di trovare le risorse per installare una stazione LOFAR anche in Italia».
Il satellite molto ‘phone’ e anche ‘smart’
Creators: Marco Galliani
Publisher: name: Media Inaf
Year: 2013

Un satellite con il cuore di smartphone: piccolo, leggero e soprattutto low-cost. PhoneSat collauderà la resistenza e l’affidabilità di componenti elettroniche di largo consumo, non certo pensate per l’utilizzo estremo in orbita. Decollo previsto nelle prossime ore, all’1.30 di domani mattina ora italiana, dalla base NASA di Wallops in Virginia (USA).
L’astronomia in agenda
Creators: Davide Coero Borga
Publisher: name: Media Inaf
Year: 2013

Con l'addentrarsi nell'attività scolastica si moltiplicano le iniziative degli istituti e osservatori dell'INAF dedicati alla divulgazione e alla didattica. In attesa della cometa ISON, un breve excursus delle iniziative in essere
Essential hyperbolic Coxeter polytopes
Creators: name: Felikson, Anna
name: Tumarkin, Pavel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 51F15, 51M20, 20F55

description: We introduce a notion of essential hyperbolic Coxeter polytope as a polytope which fits some minimality conditions. The problem of classification of hyperbolic reflection groups can be easily reduced to classification of essential Coxeter polytopes. We determine a potentially large combinatorial class of polytopes containing, in particular, all the compact hyperbolic Coxeter polytopes of dimension at least 6 which are known to be essential, and prove that this class contains finitely many polytopes only. We also construct an effective algorithm of classifying polytopes from this class, realize it in four-dimensional case, and formulate a conjecture on finiteness of the number of essential polytopes.
description: IHES preprint; 39 pages, a lot of figures; accepted version, to appear in Isr. J. Math
Financing American Cotton Production and Marketing in the United States
Creators: name: Benton, Mildred C.
name: Benton, Mildred C.
Publisher: name: Unknown
Year: 1935
Subjects: subject: Agricultural Finance
subject: Crop Production/Industries
subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business
subject: Production Economics

description: Excerpt from the Foreword: This bibliography includes references to periodicals and books relating to all phases of the financing of American cotton from production through marketing. References cover the period 1897-1935.
Urinary metabolites of S[35]-BAL in the rat
Creators: name: Matheson, Alastair Taylor
Publisher: name: University of British Columbia
Year: 2012

description: A. method for the synthesis of S³⁵-BAL has been described S³⁵-sulphate was reduced to the sulphide and converted to NaS³⁵H. The NaS³⁵H was then reacted with 2:3-dibromopropanol to form S³⁵-BAL. The product was characterized by sulphydryl content, preparation of two crystalline dithiolans, sulphur analysis and chromatographic behavior. The metabolism of S³⁵-BAL was studied in the Wistar rat. The isotopic BAL was administered by intraperitoneal injection and the S³⁵ content of the post-inject ion urine was studied. The maximum rate of S³⁵ excretion in the urine was observed in the first 6 hours after injection and was followed by a rapid decrease in S³⁵ excretion. This was true for both neutral S³⁵- sulphur and inorganic S³⁵-sulphate. The amount of neutral sulphur excreted in the urine also reached a maximum in the first 6 hours and returned to normal within 12 hours. The excretion of inorganic sulphate, however, remained abnormally high throughout the experiment. Approximately 4 - 19% of the excreted was S³⁵ in the form of inorganic sulphate while less than 0.5% was present in the ethereal sulphate. Six possible metabolic products were detected by radiochromatographic studies of the post-injection urine. These compounds were found to have the following Rf values when the chromatograms were run in a tertiary butanol-water solvent (70/35): Compound 1 0.07 - 0.10 Compound 2 0.25 - 0.30 Compound 3 0.45 - 0.50 Compound 4 0.60 - 0.65 Compound 5 0.78 - 0.85 Compound 6 0.95 - 0.98 Compound 1 was characterized as inorganic sulphate while compound 5 was found to be a thiol compound which arose following acid hydrolysis of compound 3. Extraction studies showed only compound 2 to be extracted with ether while all but compounds 1 were found to be soluble in n-butanol. Compound 4, the major metabolite, was shown to be only slightly soluble in n-butanol and insoluble in ether. No glucuronide of BAL or its metabolites have been found in the urine and no increase in glucuronic acid excretion was observed following BAL injection. The presence of a large amount of glucose in the post-injection urine was indicated by chromatographic studies.
title: ÐÐ´ÐµÐ½ÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð½ÐµÑÐ¿ÑÑÐ³Ð¾Ð³Ð¾ Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐ°Ð·ÑÑÑÐµÐ½Ð¸Ñ Ð±ÐµÑÐ¾Ð½Ð°
title: Ð¼Ð°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ
titleType: Subtitle
Creators: name: ÐÐµÐ»Ñ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: 2017
Subjects: ÐÐµÑÐ¾Ð½
ÐÐµÑÐ¾Ð½Ð½ÑÐµ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸

description: ÐÐ°Ð³Ð¸ÑÑÐµÑÑÐºÐ°Ñ Ð´Ð¸ÑÑÐµÑÑÐ°ÑÐ¸Ñ Ð¿Ð¾ÑÐ²ÑÑÐµÐ½Ð° ÑÐµÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð¸Ð´ÐµÐ½ÑÐ¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¸ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð¸ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð½ÐµÑÐ¿ÑÑÐ³Ð¾Ð³Ð¾ Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐ°Ð·ÑÑÑÐµÐ½Ð¸Ñ Ð±ÐµÑÐ¾Ð½Ð°. Ð Ð°ÑÑÐ¼Ð°ÑÑÐ¸Ð²Ð°ÐµÑÑÑ Ð²Ð¾Ð¿ÑÐ¾Ñ Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÑÐµÐºÑÑÐµÐ³Ð¾ Ð·Ð½Ð°ÑÐµÐ½Ð¸Ñ Ð¼Ð¾Ð´ÑÐ»Ñ ÑÐ¿ÑÑÐ³Ð¾ÑÑÐ¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÑ Ð´Ð°Ð½Ð½ÑÑ Ð´Ð»Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¿ÑÑÐ³Ð¾-Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð±ÐµÑÐ¾Ð½Ð° Ñ ÑÑÐµÑÐ¾Ð¼ Ð¿Ð¾Ð²ÑÐµÐ¶Ð´ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¿ÑÐ¸ ÐºÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½Ð¾Ð¼ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ð¸. ÐÑÐ¾Ð±Ð¾Ðµ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸Ðµ ÑÐ´ÐµÐ»ÑÐ»Ð¾ÑÑ Ð¿Ð¾Ð¸ÑÐºÑ Ð½Ð°Ð´ÐµÐ¶Ð½ÑÑ Ð¸ ÑÑÑÐµÐºÑÐ¸Ð²Ð½ÑÑ Ð¼ÐµÑÐ¾Ð´Ð¾Ð² Ð¾Ð¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð²ÑÐµÐ¶Ð´ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð±ÐµÑÐ¾Ð½Ð° Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÐºÑÐ¸Ð²ÑÑ ÑÐ¸ÐºÐ»Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð´Ð¾Ð¿Ð¸ÐºÐ¾Ð²Ð¾Ð¹ Ð¸ Ð·Ð°Ð¿Ð¸ÐºÐ¾Ð²Ð¾Ð¹ Ð¾Ð±Ð»Ð°ÑÑÑÑ Ð½Ð°Ð³ÑÑÐ¶ÐµÐ½Ð¸Ñ. Ð¡ÑÐ°Ð²Ð½ÐµÐ½Ð¸Ðµ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ¾Ð² ÐºÐ¾Ð½ÐµÑÐ½Ð¾-ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ½ÑÑ ÑÐ°ÑÑÐµÑÐ¾Ð² Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð° Ñ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÐ°Ð»ÑÐ½ÑÐ¼Ð¸ Ð´Ð°Ð½Ð½ÑÐ¼Ð¸ Ð¿ÑÐ¾Ð´ÐµÐ¼Ð¾Ð½ÑÑÑÐ¸ÑÐ¾Ð²Ð°Ð»Ð¾ ÑÐ¾ÑÐ¾ÑÐµÐµ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²Ð¸Ðµ Ð´Ð»Ñ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð¼Ð°ÑÐ¾Ðº Ð±ÐµÑÐ¾Ð½Ð°.
Large electronic bandwidth in solution-processable pyrene crystals: The role of close-packed crystal structure
Creators: name: Provencher, Francoise
name: Laprade, Jean-Frederic
name: Simard, Gabrielle
name: Berube, Nicolas
name: Cote, Michel
name: Silva, Carlos
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examine the interdependence of structural and electronic properties of two substituted pyrene crystals by means of combined spectroscopic probes and density-functional theory calculations. One derivative features n-hexyl side groups, while the other one contains branched silanyl groups. Both derivatives form triclinic crystal structures when grown from solution, but the electronic dispersion behavior is significantly different due to differences in $π$-$π$ overlap along the $a$ crystal axis. Both systems display dispersion of 0.40-0.45 eV in the valence band, suggesting a high intrinsic hole mobility. However, the dispersion is primarily along the a-axis in the silanyl-substituted derivative, but less aligned with this crystal axis in the hexyl-substituted material. This is a direct consequence of the diferences in co-facial $π$ electron overlap revealed by the crystallographic studies. We find that photophysical defects, ascribed to excimer-like states, point to the importance of localized trap states. Substituted pyrenes are useful model systems to unravel the interplay of crystal structure and electronic properties in organic semiconductors.
description: 25 pages, 8 figures
CRaTER studia le radiazioni spaziali
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2013

Il futuro corre sempre più veloce e i viaggi verso Marte, pianeti lontani o asteroidi sono sempre più vicini. Ma quali sono i rischi che corrono gli astronauti? E' proprio questo che i ricercatori cercano di studiare e prevedere, costruendo nuovi rivelatori e strumenti per misurare il dosaggio delle radiazioni che il corpo umano e le strumentazioni possono sopportare.
Terminal respiration in pseudomonas aeruginosa
Creators: name: Smith, Roberts Angus
Publisher: name: University of British Columbia
Year: 2012

description: The conventional tricarboxylic acid cycle is generally accepted as the sole means of terminal respiration in aerobic micro-organisms. Cell-free extracts of Pseudomonas aeruginosa were found to contain the condensing enzyme and were able to oxidize all the intermediates of the conventional tricarboxylic acid cycle. In spite of this evidence in favour of the conventional tricarboxylic acid cycle some deviations from the normal scheme were found. Even though an ability to oxidize isocitrate was noted the cell-free extracts had no ability to equilibrate isocitrate with citrate, indicating possession of an impaired aconitase system. Furthermore, when citrate was used as substrate all attempts to isolate alpha-Ice toglutarate in the fermentation liquor failed. Moreover, the 2,4, dinitrophenylhydra-zone of glyoxylate was easily isolated in relatively large quantities when either citrate or cis-aconitate were used as substrates. Although glyoxylate was never isolated when isocitrate was used as substrate it was produced from citrate or cis-aconitate under either aerobic or anaerobic conditions. Since the reaction proceeded in the presence or absence of oxygen it was assumed to be a hydrolytic cleavage of cis-aconitate. In addition to glyoxylate, succinate was found as a product of the anaerobic degradation of citrate or cis-aconitate and in the presence of the cell- extract citrate was readily formed by synthe-i sis from glyoxylate and succinates Succinate was then shown to be oxidized by P.aeruginosa through fumarate and 1-malate to oxalacetate, indicating a similarity to the tricarboxylic acid cycle. These results represent a deviation from the conventional tricarboxylic acid cycle and show that the fragmentary evidence normally accepted is not sufficient to prove the presence of a conventional tricarboxylic acid cycle.
Griffiths Inequalities for Ising Spin Glasses on the Nishimori Line
Creators: name: Kitatani, Hidetsugu
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Griffiths inequalities for Ising spin glasses are proved on the Nishimori line with various bond randomness which includes Gaussian and $\pm J$ bond randomness. The proof for Ising systems with Gaussian bond randomness has already been carried out by Morita et al, which uses not only the gauge theory but also the properties of the Gaussian distribution, so that it cannot be directly applied to the systems with other bond randomness. The present proof essentially uses only the gauge theory, so that it does not depend on the detail properties of the probability distribution of random interactions. Thus, the results obtained from the inequalities for Ising systems with Gaussian bond randomness do also hold for those with various bond randomness, especially with $\pm J$ bond randomness.
description: 13pages. Submitted to J. Phys. Soc. Jpn
Maven in volo verso Marte
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2013

Il lancio è stato effettuato alle 19:28 ora italiana, appena apertasi la prevista finestra di lancio di due ore. La missione della Nasa, che entrerà nell'orbita marziana solo nel settembre 2014, studierà il clima del Pianeta rosso e fornirà nuovi indizi sull'abitabilità o meno della superficie. Maven è costata circa 671 milioni di dollari.
Gravitational eigenstates in weak gravity II: further approximate methods for decay rates
Creators: name: Ernest, A D
Publisher: name: arXiv
Year: 2009
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: This paper develops further approximate methods for obtaining the dipole matrix elements and corresponding transition and decay rates of the high-n, high-l gravitational eigenstates. These methods include (1) investigation of the polar spreads of the angular components of the high-n, high-l eigenstates and the effects these have on the limiting values of the angular components of the dipole matrix elements in the case of large l and m and (2) investigation of the rapid cut off and limited width of the low-p, high-n radial eigenfunctions, and the development of an equation to determine the width, position and oscillatory behaviour of those eigenfunctions in cases of arbitrarily large values of n, l and p. The methods have wider applicability than dipole transition rate estimates and may be also used to determine limits on the rates for more general interactions. Combining the methods enables the establishment of upper limits to the total dipole decay rates of many high-n, low-p states on the state diagram to be determined, even those that have many channels available for decay. The results continue to support the hypothetical existence of a specialized set of high-n, low-p gravitational eigenfunctions that are invisible and stable, both with respect to electromagnetic decay and gravitational collapse, making them excellent dark matter candidates.
description: 36 pages, 2 tables, 9 figures
Topological insulators and topological non-linear sigma models
Creators: name: Yao, Hong
name: Lee, Dung-Hai
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper we link the physics of topological nonlinear σ models with that of Chern-Simons insulators. We show that corresponding to every 2n-dimensional Chern-Simons insulator there is a (n-1)-dimensional topological nonlinear σ model with the Wess-Zumino-Witten term. Breaking internal symmetry in these nonlinear σ models leads to nonlinear σ models with the θ term. [This is analogous to the dimension reduction leading from 2n-dimensional Chern-Simons insulators to (2n-1) and (2n-2)-dimensional topological insulators protected by discrete symmetries.] The correspondence described in this paper allows one to derive the topological term in a theory involving fermions and order parameters (we shall referred to them as "fermion-σ models") when the conventional gradient-expansion method fails. We also discuss the quantum number of solitons in topological nonlinear σ model and the electromagnetic action of the (2n-1)-dimensional topological insulators. Throughout the paper we use a simple model to illustrate how things work.
description: 18 pages, 11 figures (figure problem fixed)
Practices in instrument use and development in Chemistry Education Research and Practice 2010-2021
Creators: name: Lazenby, Katherine
name: Komperda, Regis
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Science and Mathematics Education
subject: Education
subject: Educational Assessment, Evaluation, and Research

description: To investigate the effectiveness of classroom-based innovations, researchers commonly generate data using assessment instruments. In chemistry education research, assessment instruments may generate data related to cognitive knowledge (e.g., American Chemical Society exams, instructor-developed exams, concept inventories, or other measures of chemistry content knowledge), affect (e.g., measures of student attitudes, beliefs, etc.), and behavior (e.g., observational protocols for student [or instructor] behaviors). Because assessment instruments commonly measure latent (not directly observable) constructs such as knowledge and beliefs, it is best practice for instrument developers and users to provide evidence related to the validity and reliability of instrument-generated data. While the CER community has collectively adopted some expectations related to reporting of validity and reliability evidence (Arjoon et al., 2013), there is no consistent protocol for conducting validation and reliability studies or reporting these data. In the present study, we will investigate the adoption of best practices in measurement and evaluation, as described by the Standards for Educational and Psychological Testing, in a census of journal articles published in the flagship international journal for Chemistry Education Research (CER) since 2010.
L’universo negli occhi dei bambini
Creators: Davide Coero Borga
Publisher: name: Media Inaf
Year: 2013

Hanno fra i 4 e gli 11 anni i vincitori di Stars, il premio dell'Agenzia Spaziale Europea pensato per giovani artisti e giovanissimi astrofili. Nelle loro tavole di colore e luce, lo stupore e la gioia del primo sguardo al cielo stellato.
Tropical curves with a singularity in a fixed point
Creators: name: Markwig, Hannah
name: Markwig, Thomas
name: Shustin, Eugenii
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 14H20, 51M20, 05B35

description: In this paper, we study tropicalisations of families of curves with a singularity in a fixed point. The tropicalisation of such a family is a linear tropical variety. We describe its maximal dimensional cones using results about linear tropical varieties from Ardila and Klivans and from Feichtner and Sturmfels. We show that a singularity tropicalises either to a vertex of higher valence or of higher multiplicity, or to an edge of higher weight. We then classify maximal dimensional types of singular tropical curves. For those, the singularity is either a crossing of two edges, or a 3-valent vertex of multiplicity 3, or a point on an edge of weight 2 whose distances to the neighbouring vertices satisfy a certain metric condition. We also study algebraic preimages of our singular tropical curves.
description: 34 pages, 26 figrues; replaced by the published version
Dataflow approach to testing Java programs supported with DFC
Creators: name: Bluemke, Ilona
name: Rembiszewski, Artur
Publisher: name: Institute of Applied Informatics, Wrocław University of Technology, Wrocław
Year: 2015
Subjects: tests
white box testing
dataflow coverage testing
tool supporting testing

description: e-Informatica Vol. IX, 2015; ISSN 1897-7979
Un’illusione ottica galattica
Creators: Giulia Bonelli
Publisher: name: Media Inaf
Year: 2013

Gli ultimi dati provenienti dal Karl Jansky Very Large Array dimostrano che la galassia a spirale conosciuta  come UGC 10288 è in realtà il risultato visivo della sovrapposizione di due oggetti celesti distinti. La “nuova” galassia è molto più lontana della prima, ed emette intense onde radio.
Generating EPR beams in a cavity optomechanical system
Creators: name: Yin, Zhang-qi
name: Han, Y. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a scheme to produce continuous variable entanglement between phase-quadrature amplitudes of two light modes in an optomechanical system. For proper driving power and detuning, the entanglement is insensitive with bath temperature and $Q$ of mechanical oscillator. Under realistic experimental conditions, we find that the entanglement could be very large even at room temperature.
description: 4.1 pages, 4 figures, comments are welcome; to appear in PRA, published version with corrections of typos
title: Ð¡ÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ Ð°Ð½Ð°Ð»Ð¸Ð· ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÑÐµÑÑ ÑÑÑÐ¸Ð·Ð¼Ð° Ð½Ð° Ð°ÑÐºÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸ÑÑ ÑÐ¸ÑÐºÑÐ¼Ð¿Ð¾Ð»ÑÑÐ½ÑÑ ÑÑÑÐ°Ð½ (Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ Ð Ð¤ Ð¸ ÐÐ°Ð½Ð°Ð´Ñ)
title: Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÑÐºÐ°Ñ ÑÐ°Ð±Ð¾ÑÐ°
titleType: Subtitle
Creators: name: Ð©ÑÑÐ¸Ðº, ÐÐ°ÑÑ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: 2017
Subjects: adl-Ð¼Ð¾Ð´ÐµÐ»Ñ
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description: Ð¦ÐµÐ»Ñ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ - Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ ÑÑÐ°Ð²Ð½Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÑÐµÑÑ ÑÑÑÐ¸Ð·Ð¼Ð° Ð½Ð° Ð°ÑÐºÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸ÑÑ Ð Ð¾ÑÑÐ¸Ð¸ Ð¸ ÐÐ°Ð½Ð°Ð´Ñ Ñ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐ¸ÑÑÐµÐ¼Ñ ÑÐºÐ¾Ð½Ð¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÑÐ°Ð²Ð½ÐµÐ½Ð¸Ð¹. ÐÑÐ±ÑÐ°Ð½Ñ Ð¡ÐµÐ²ÐµÑÐ¾-ÐÐ°Ð¿Ð°Ð´Ð½ÑÐµ ÑÐµÑÑÐ¸ÑÐ¾ÑÐ¸Ð¸ (ÐÐ°Ð½Ð°Ð´Ð°) Ð¸ Ð¯Ð¼Ð°Ð»Ð¾-ÐÐµÐ½ÐµÑÐºÐ¸Ð¹ Ð°Ð²ÑÐ¾Ð½Ð¾Ð¼Ð½ÑÐ¹ Ð¾ÐºÑÑÐ³ (Ð Ð¾ÑÑÐ¸Ñ). Ð¡ Ð¿Ð¾Ð¼Ð¾ÑÑÑ ÑÐºÐ¾Ð½Ð¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¼Ð¾Ð´ÐµÐ»Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¸ ÑÐ¾Ð´ÐµÑÐ¶Ð°ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ð¾ÑÑÐ°ÑÐ»Ð¸ Ð²ÑÑÐ²Ð»ÐµÐ½Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼Ñ Ð¸ ÑÐ»Ð°Ð±ÑÐµ ÑÑÐ¾ÑÐ¾Ð½Ñ ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¹ Ð¾ÑÑÐ°ÑÐ»Ð¸ Ð² Ð¸Ð·ÑÑÐµÐ½Ð½ÑÑ ÑÐµÐ³Ð¸Ð¾Ð½Ð°Ñ. ÐÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ñ Ð¼ÐµÑÑ Ð¸ ÑÐ¿Ð¾ÑÐ¾Ð±Ñ ÑÐµÑÐµÐ½Ð¸Ñ ÑÐ»ÐµÐ´ÑÑÑÐ¸Ñ Ð¿ÑÐ¾Ð±Ð»ÐµÐ¼: Ð¿ÑÐ¸Ð²Ð»ÐµÑÐµÐ½Ð¸Ðµ Ð²ÑÑÐ¾ÐºÐ¾ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð½ÑÑ ÐºÐ°Ð´ÑÐ¾Ð² Ð´Ð»Ñ ÑÐ°Ð±Ð¾ÑÑ Ð² Ð¾ÑÑÐ°ÑÐ»Ð¸; ÑÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ ÐºÐ¾Ð¼Ð¿Ð»ÐµÐºÑÐ½ÑÑ ÑÐµÐºÐ»Ð°Ð¼Ð½ÑÑ ÐºÐ°Ð¼Ð¿Ð°Ð½Ð¸Ð¹ Ð²Ð½ÑÑÑÐ¸ ÑÐµÐ³Ð¸Ð¾Ð½Ð° Ð¸ Ð·Ð° ÐµÐ³Ð¾ Ð¿ÑÐµÐ´ÐµÐ»Ð°Ð¼Ð¸, Ð½Ð°ÑÐµÐ»ÐµÐ½Ð½ÑÑ Ð½Ð° ÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð²Ð½Ð¾Ð³Ð¾ Ð¸Ð¼Ð¸Ð´Ð¶Ð° ÑÐµÐ³Ð¸Ð¾Ð½Ð° Ð¸ Ð¾ÑÐ²ÐµÐ´Ð¾Ð¼Ð»ÐµÐ½Ð½Ð¾ÑÑÐ¸ Ð¿ÑÑÐµÑÐµÑÑÐ²ÐµÐ½Ð½Ð¸ÐºÐ¾Ð² Ð¾ ÐµÐ³Ð¾ Ð´Ð¾ÑÑÐ¾Ð¿ÑÐ¸Ð¼ÐµÑÐ°ÑÐµÐ»ÑÐ½Ð¾ÑÑÑÑ Ð¸ ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð¼ Ð¿Ð¾ÑÐµÐ½ÑÐ¸Ð°Ð»Ðµ; Ð°ÐºÑÐ¸Ð²Ð¸Ð·Ð°ÑÐ¸Ñ Ð²Ð·Ð°Ð¸Ð¼Ð¾Ð´ÐµÐ¹ÑÑÐ²Ð¸Ñ Ñ Ð¾Ð±ÑÐµÑÑÐ²ÐµÐ½Ð½ÑÐ¼Ð¸ Ð¾ÑÐ³Ð°Ð½Ð¸Ð·Ð°ÑÐ¸ÑÐ¼Ð¸; ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð±ÑÐµÐ½Ð´Ð° ÑÐµÐ³Ð¸Ð¾Ð½Ð° Ð¸ Ð´Ñ. Ð¡Ð´ÐµÐ»Ð°Ð½ Ð¿ÑÐ¾Ð³Ð½Ð¾Ð· Ð²ÑÐ¾Ð´ÑÑÐµÐ³Ð¾ ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð¿Ð¾ÑÐ¾ÐºÐ° Ð² ÑÐµÐ³Ð¸Ð¾Ð½Ð°Ñ, Ð¾Ð±ÑÐµÐ¼Ð° Ð¾ÐºÐ°Ð·Ð°Ð½Ð½ÑÑ ÑÑÑÐ¸ÑÑÐ¸ÑÐµÑÐºÐ¸Ñ ÑÑÐ»ÑÐ³ Ð¸ Ð¸Ð½Ð²ÐµÑÑÐ¸ÑÐ¸Ð¹ Ð² Ð¾ÑÑÐ°ÑÐ»Ð¸ ÑÑÑÐ¸Ð·Ð¼Ð° Ð½Ð° 3 Ð³Ð¾Ð´Ð° Ð²Ð¿ÐµÑÐµÐ´ â Ð´Ð¾ 2019 Ð³Ð¾Ð´Ð°. Ð ÐµÐ°Ð»Ð¸Ð·Ð°ÑÐ¸Ñ Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÑ Ð¼ÐµÑ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÑ Ðº Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ¼Ñ ÑÐ¾ÑÑÑ Ð¸Ð·ÑÑÐµÐ½Ð½ÑÑ Ð¿Ð¾ÐºÐ°Ð·Ð°ÑÐµÐ»ÐµÐ¹ Ð¸ ÑÐ»ÑÑÑÐµÐ½Ð¸Ñ ÑÐ¾ÑÐ¸Ð°Ð»ÑÐ½Ð¾-ÑÐºÐ¾Ð½Ð¾Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÑÐ¾Ð²Ð½Ñ ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÐµÐ³Ð¸Ð¾Ð½Ð°.
title: Ð¡Ð±Ð¾ÑÐ½Ð¸Ðº Ð·Ð°Ð´Ð°Ñ Ð¿Ð¾ ÐºÑÑÑÑ "Ð¡ÑÑÐ°Ñ Ð¾Ð²Ð°Ð½Ð¸Ðµ"
title: ÑÑÐµÐ±Ð½Ð¾Ðµ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ðµ
titleType: Subtitle
Creators: name: ÐÐ¾ÑÐ¾Ð²ÐºÐ¾Ð²Ð°, ÐÐ¸ÐºÑÐ¾ÑÐ¸Ñ
Publisher: name: Ð¢Ð­Ð
Year: 2012
Subjects: ÑÑÑÐ°Ñ Ð¾Ð²Ð°Ð½Ð¸Ðµ
ÑÑÐµÐ±Ð½Ð¸ÐºÐ¸ Ð¸ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ñ Ð´Ð»Ñ Ð²ÑÐ·Ð¾Ð²

description: Ð ÑÑÐµÐ±Ð½Ð¾Ð¼ Ð¿Ð¾ÑÐ¾Ð±Ð¸Ð¸ Ð¿ÑÐ¸Ð²ÐµÐ´ÐµÐ½Ñ Ð·Ð°Ð´Ð°ÑÐ¸ Ð¿Ð¾ ÑÐµÐ¼Ð°Ð¼ ÑÑÐµÐ±Ð½Ð¾Ð¹ Ð´Ð¸ÑÑÐ¸Ð¿Ð»Ð¸Ð½Ñ Â«Ð¡ÑÑÐ°ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÂ». ÐÑÐµÐ´Ð½Ð°Ð·Ð½Ð°ÑÐµÐ½Ð¾ Ð´Ð»Ñ ÑÑÑÐ´ÐµÐ½ÑÐ¾Ð² Ð²ÑÐµÑ ÑÐ¾ÑÐ¼ Ð¾Ð±ÑÑÐµÐ½Ð¸Ñ ÑÐ¿ÐµÑÐ¸Ð°Ð»ÑÐ½Ð¾ÑÑÐµÐ¹ 080502 Ð¸ 080109.
Il mistero della Grande macchia rossa
Creators: Eleonora Ferroni
Publisher: name: Media Inaf
Year: 2013

Dopo diversi tentativi e teorie non esaustive, un gruppo di ricercatori prova di nuovo a dare una risposta al perché la tempesta più famosa di Giove duri ormai da centinaia e centinaia di anni. I due studiosi hanno sviluppato un nuovo modello, che verrà presentato verso la fine di novembre: sembra che il vortice si rigeneri continuamente risucchiando energia dall'esterno.