cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Engineering squeezed states in high-Q cavities
Creators: name: de Almeida, N. G.
name: Serra, R. M.
name: Villas-Boas, C. J.
name: Moussa, M. H. Y.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While it has been possible to build fields in high-Q cavities with a high degree of squeezing for some years, the engineering of arbitrary squeezed states in these cavities has only recently been addressed [Phys. Rev. A 68, 061801(R) (2003)]. The present work examines the question of how to squeeze any given cavity-field state and, particularly, how to generate the squeezed displaced number state and the squeezed macroscopic quantum superposition in a high-Q cavity.
Tidal disruptions of main sequence stars -- III. Stellar mass dependence of the character of partial disruptions
Creators: name: Ryu, Taeho
name: Krolik, Julian
name: Piran, Tsvi
name: Noble, Scott C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper, the third in this series, we continue our study of tidal disruption events of main-sequence stars by a non-spinning $10^{6}~\rm{M}_\odot$ supermassive black hole. Here we focus on the stellar mass dependence of the outcomes of partial disruptions. As the encounter becomes weaker, the debris mass is increasingly concentrated near the outer edges of the energy distribution. As a result, the mass fallback rate can deviate substantially from a $t^{-5/3}$ power-law, becoming more like a single peak with a tail declining as $t^{-p}$ with $p\simeq2-5$. Surviving remnants are spun-up in the prograde direction and are hotter than main sequence stars of the same mass. Their specific orbital energy is $\simeq10^{-3}\times$ that of the debris, but of either sign with respect to the black hole potential, while their specific angular momentum is close to that of the original star. Even for strong encounters, remnants have speeds at infinity relative to the black hole potential $\lesssim 300$ km s$^{-1}$, so they are unable to travel far out into the galactic bulge. The remnants most deeply bound to the black hole go through a second tidal disruption event upon their first return to pericenter; if they have not thermally relaxed, they will be completely disrupted.
description: 14 pages, 8 figures, accepted for publication in ApJ, Supersedes arXiv:1909.04041
Problems and Solutions of Protecting Rights and Interests of Land-expropriated farmers during Urbanization - A Case Study of Henan Province
Creators: name: Chen, Jian
name: Chen, Jian
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Land-expropriated farmers
subject: Land compensation
subject: Employment
subject: Social security

description: This paper discusses existing problems in protecting rights and interests of land-expropriated farmers during urbanization, such as those farmers failure to obtain benefits from land increment, difficult employment and imperfect social security system. Reasons for losses of farmers’ rights and interests mainly include defects in land management and expropriation system, and uncoordinated development of urbanization and industrialization. However, the basic reason is urban and rural dual economic structure. On the basis of these situations, it puts forward solutions to protecting rights and interests of land-expropriated farmers: let land-expropriated farmers share land-increment benefits from land marketization; establish effective employment security system and perfect social security system, to make land-expropriated farmers share supply of public goods equal between rural and urban areas, and realize the inclusive growth balancing urban and rural areas.
title: Paesaggi di pianura nel Lazio, tra passato e presente (esperienza in una scuola elementare)
Creators: name: Pasquinelli D'allegra, Daniela
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Il lavoro di osservazione, lettura e interpretazione dei paesaggi di pianura del Lazio, svolto con ventidue alunni di una classe quinta elementare, ha offerto lo spunto per un importante momento di sintesi metodologica dei progetti di ricerca attuati nel corso dei precedenti anni scolastici. In queste proposte la geografia ha sempre costituito il centro aggregante e propulsivo dei contenuti formativi inerenti ad altri ambiti disciplinari, data la sua peculiarità di rappresentare l'analisi dello "sfondo" su cui si compie ogni azione, positiva o negativa, dell'uomo nello spazio e nel tempo. La progettazione, incentrata sul confronto tra passato e presente delle pianure laziali, è stata impostata mediante l'impiego delle due basilari metodologie per la conoscenza di una realtà ambientale: per il passato, l'approccio indiretto, attraverso l'utilizzo di molteplici e diverse fonti documentarie (pittoriche, letterarie ... ); per il presente, l'osservazione diretta, attraverso la lezione itinerante. L'escursione didattica, che è servita a sviluppare "la capacità di leggere dal vivo il territorio, sapendo usare lo sguardo come mezzo sensibile e intellettivo" (De Vecchis, 1991, p. 6), è stata guidata da una precisa ipotesi di lavoro: la ricerca delle trasformazioni del paesaggio, rispetto alla situazione del passato, perdurata fino ai primi anni del nostro secolo.
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
Eco-Crylic: Creating a Biodegradable Composite Fiber to  Replace Acrylic Fibers in Fast Fashion
Creators: name: Bakhtyar, Shahzadi Zaina
name: Khan, Robina
name: Khan, Faisal
Publisher: name: Zenodo
Year: 2024

description:  

“Acrylic” is an umbrella term for any fabric comprising at least 85% polyacrylonitrile (PAN). Although PAN is preferable as an alternative to wool or cashmere and is extensively used in fast fashion, it is rapidly becoming a notorious pollutant among synthetic textiles. For this reason, it is important to find a cost-effective and eco-friendly alternative.
title: L'agricoltura svantaggiata nel territorio del Comune di Roma secondo la direttiva CEE 278/75
Creators: name: Castagnoli, Donata
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Il Comune di Roma, che si estende per 150.760,54 ha di superficie può essere considerato, nonostante il considerevole sviluppo urbano, il Comune agricolo più vasto d'Europa.
description: Semestrale di studi e ricerche di geografia, N. 2 (1992)
MOESM1 of Health economic evaluations of sepsis interventions in critically ill adult patients: a systematic review
Creators: name: Higgins, Alisa
name: Brooker, Joanne
name: Mackie, Michael
name: D. Cooper
name: Harris, Anthony
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy

description: Additional file 1. MEDLINE, Embase and Cochrane library search strategies
Black Hole Relics in Large Extra Dimensions
Creators: name: Hossenfelder, Sabine
name: Bleicher, Marcus
name: Hofmann, Stefan
name: Stöcker, Horst
name: Kotwal, Ashutosh V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recent calculations applying statistical mechanics indicate that in a setting with compactified large extra dimensions a black hole might evolve into a (quasi-)stable state with mass close to the new fundamental scale $M_f$. Black holes and therefore their relics might be produced at the LHC in the case of extra-dimensional topologies. In this energy regime, Hawking's evaporation scenario is modified due to energy conservation and quantum effects. We reanalyse the evaporation of small black holes including the quantisation of the emitted radiation due to the finite surface of the black hole. It is found that observable stable black hole relics with masses $\sim 1-3 M_f$ would form which could be identified by a delayed single jet with a corresponding hard momentum kick to the relic and by ionisation, e.g. in a TPC.
description: 6 pages, 2 figures. 1 figure corrected, replaced with published version
title: Un progetto di educazione ambientale nella scuola secondaria superiore
Creators: name: Abbate, Caterina
name: Augugliaro, Claudia
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Gli obiettivi generali del progetto hanno riguardato: lo sviluppo delle attitudini di comprensione del rapporto uomo/natura e l'eliminazione di atteggiamenti di indifferenza nei confronti dell'ambiente in cui l'uomo vive e lavora; l'apprendimento delle conoscenze attraverso l'uso di ottiche diverse puntualizzando come ciascuna ottica abbia un valore relativo e vada correlata con tutti gli altri possibili approcci (multicausalità); la ricerca e la raccolta delle informazioni; lo sviluppo delle capacità di discussione e la messa in relazione delle informazioni acquisite; l' elaborazione di conclusioni con eventuali proposte.
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
title: Le temperature e le precipitazioni a Roma dal 1782 al 1989
Creators: name: Cardillo, Maria Cristina
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Le variazioni climatiche del nostro secolo ed i pronosticati cambiamenti connessi all 'aumento nell'atmosfera della concentrazione di anidride carbonica hanno destato considerevole attenzione negli anni recenti.
description: Semestrale di studi e ricerche di geografia, N. 2 (1992)
Tracing Dirac points of topological surface states by ferromagnetic resonance
Creators: name: Pietanesi, Laura
name: Marganska, Magdalena
name: Mayer, Thomas
name: Barth, Michael
name: Chen, Lin
name: Zou, Ji
name: Weindl, Adrian
name: Liebig, Alexander
name: Diaz-Pardo, Rebeca
name: Suri, Dhavala
name: Schmid, Florian
name: Giessibl, Franz J.
name: Richter, Klaus
name: Tserkovnyak, Yaroslav
name: Kronseder, Matthias
name: Back, Christian H.
Publisher: name: Universität Regensburg
Year: 2024
Subjects: subject: Topological insulators, Spin pumping, Ferromagnetic resonance, Green's function methods, Molecular beam epitaxy
subject: 530 Physik

description: Ferromagnetic resonance is used to reveal features of the buried electronic band structure at interfaces between ferromagnetic metals and topological insulators. By monitoring the evolution of magnetic damping, the application of this method to a hybrid structure consisting of a ferromagnetic layer and a 3D topological insulator reveals a clear fingerprint of the Dirac point and exhibits additional features of the interfacial band structure not otherwise observable. The underlying spin-pumping mechanism is discussed in the framework of dissipation of angular momentum by topological surface states (TSSs). Tuning of the Fermi level within the TSS was verified both by varying the stoichiometry of the topological insulator layer and by electrostatic backgating and the damping values obtained in both cases show a remarkable agreement. The high-energy resolution of this method additionally allows us to resolve the energetic shift of the local Dirac points generated by local variations of the electrostatic potential. Calculations based on the chiral tunneling process naturally occurring in TSSs agree well with the experimental results.
Peeling an elastic film from a soft viscoelastic adhesive: experiments and scaling laws
Creators: name: Perrin, Hugo
name: Eddi, Antonin
name: Karpitschka, Stefan
name: Snoeijer, Jacco H.
name: Andreotti, Bruno
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The functionality of adhesives relies on their response under the application of a load. Yet, it has remained a challenge to quantitatively relate the macroscopic dynamics of peeling to the dissipative processes inside the adhesive layer. Here we investigate the peeling of a reversible adhesive made of a polymer gel, measuring the relationship between the peeling force, the peeling velocity, and the geometry of the interface at small-scale. Experiments are compared to a theory based on the linear viscoelastic response of the adhesive, augmented with an elastocapillary regularization approach. This theory, fully quantitative in the limit of small surface deformations, demonstrates the emergence of a "wetting" angle at the contact line and exhibits scaling laws for peeling which are in good agreement with the experimental results. Our findings provide a new strategy for design of reversible adhesives, by quantitatively combining wetting, geometry and dissipation.
Comparative Analysis of the Course of Rural Urbanization and Urban Modernization - A Case Study of Jiangsu Province
Creators: name: Wei, Tong-Jun
name: Wei, Tong-Jun
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Urbanization
subject: Factor analysis
subject: Principal component analysis
subject: Jiangsu Province

description: According to the relevant data in Jiangsu Province during the period 2000-2005, this article conducts comparative analysis of the course of rural urbanization and urban modernization using factor analysis method and principal component analysis method. The results show that the factors influencing the course of rural urbanization and urban modernization in Jiangsu Province can be summarized as 3 common factors (economic urbanization, social urbanization, urbanization of life quality and environment); economic urbanization is still the main factor influencing the course of rural urbanization and urban modernization; social urbanization, urbanization of life quality and environment also have great impact on the course of rural urbanization and urban modernization. Finally this article draws the conclusion that the difference between rural urbanization and urban modernization in Jiangsu Province will be gradually reduced, and Jiangsu Province should achieve balanced development in urban and rural areas.
Conductance distribution in quasi-one-dimensional disordered quantum wires
Creators: name: Muttalib, K. A.
name: Woelfle, P.
name: Gopar, V. A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We develop a simple systematic method, valid for all strengths of disorder, to obtain analytically the full distribution of conductances P(g) for a quasi one dimensional wire within the model of non-interacting fermions. The method has been used in [1-3] to predict sharp features in P(g) near g=1 and the existence of non-analyticity in the conductance distribution in the insulating and crossover regimes, as well as to show how P(g) changes from Gaussian to log-normal behavior as the disorder strength is increased. Here we provide many details of the method, including intermediate results that offer much insight into the nature of the solutions. In addition, we show within the same framework that while for metals P(g) is a Gaussian around g >>1, there exists a log-normal tail for g << 1, consistent with earlier field theory calculations. We also obtain several other results that compare very well with available exact results in the metallic and insulating regimes.
description: 9 figures, 50 pages (figures included). To appear in Annals of Physics
title: Antananarivo: uno spazio agro-ubano
Creators: name: Cristaldi, Flavia
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: L'attrazione esercitata dalla città sull'immaginario collettivo quale fonte di lavoro, di opportunità culturali e di riscatto da una situazione di sussistenza, ha a lungo determinato nei Paesi ad economia avanzata movimenti migratori diretti verso i maggiori centri urbani. Se attualmente il fenomeno della "convergenza al centro" ha visto in queste Nazioni un deciso arresto, ed in alcuni casi ha mostrato segni di inversione dal centro alla periferia (suburbanizzazione e controurbanizzazione)1, nei Paesi del Terzo Mondo la dinamica dell'urbanizzazione mostra di aver oggi raggiunto una fase molto acuta. In questi ultimi Paesi si assiste, infatti, ad un'esplosione urbana a forte accelerazione, nel senso che le grandi città si espandono demograficamente e topograficamente per mostrare volumi demografici dell'ordine di milioni di abitanti e per estendersi su decine di chilometri quadrati.
description: Semestrale di studi e ricerche di geografia, N. 2 (1992)
Peculiarities of the resistive transition in fractal superconducting structures
Creators: name: Kuzmin, Yuriy I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The influence of fractal clusters of a normal phase on the current-voltage characteristics of a percolation superconductor in the region of a resistive transition has been studied. The clusters represent the aggregates of columnar defects, which give rise to a correlated microscopic disorder in the system. Dependencies of the static and dynamic resistance on the transport current are obtained for an arbitrary fractal dimension of the cluster boundaries. It is revealed that a mixed state of the vortex glass type is realized in the superconducting system involved.
description: 6 pages with 2 figures
title: L'attaccamento al luogo nativo: Arpino per Cicerone, Rieti per Varrone (un'unità didattica interdisciplinare: storia, geografia, letteratura latina)
Creators: name: Moretti, Maddalena
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Leggendo in parallelo le indicazioni fornite dai Programmi ministeriali di storia, geografia e latino per il Biennio del Liceo classico (disegno di legge Brocca), emergono problematiche che interagiscono; ciò consente numerosi e significativi momenti di riflessione. Compiere ricerca storico-geografica, infatti, significa anche verificare quanto l'uomo senta fortemente il legame col proprio luogo nativo, da cui eredita abitudini, tradizioni, lingua e del quale, quando se ne allontana, ricorda località e paesaggi particolari.
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
MOESM1 of Hyper-acute cardiovascular magnetic resonance T1 mapping predicts infarct characteristics in patients with ST elevation myocardial infarction
Creators: name: Alkhalil, Mohammad
name: Borlotti, Alessandra
name: Maria, Giovanni De
name: Wolfrum, Mathias
name: Dawkins, Sam
name: Fahrni, Gregor
name: Gaughran, Lisa
name: Langrish, Jeremy
name: Lucking, Andrew
name: Ferreira, Vanessa
name: Kharbanda, Rajesh
name: Banning, Adrian
name: Dallâ€™Armellina, Erica
name: Channon, Keith
name: Choudhury, Robin
Publisher: name: figshare
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1. Study population and electrocardiographic analysis.
Application of Mixed Group Decision Making to Safety Evaluation of Agricultural Products
Creators: name: Zhao, Xiao-Hong
name: Zhao, Xiao-Hong
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Safety of agricultural products
subject: Evaluation
subject: Judgment matrix
subject: Weight

description: In view of the gravity of issues concerning safety of agricultural products and urgency of resolving these issues, after analyzing the problems existing in safety of agricultural products, this article offers a method for evaluating safety of agricultural products on the basis of mixed group decision making. First of all, it introduces the factors influencing safety evaluation of agricultural products; subsequently, given that the judgment matrices offered by the group of experts contain both reciprocal and complementary judgment matrices in the process of jointly participating in evaluation arising from personal preference, it proposes to assemble expert information in order to obtain indicator weight using the OWA operator; finally, the process of evaluating safety of agricultural products is given.
Holography with Timelike Bulk Hypersurfaces
Creators: name: Bak, Dongsu
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose a new version of holographic principle. This proposal extends the holographic principle based on the lightsheet to the one constraining the entropy passing through bulk hypersurface of timelike geodesics by the boundary area divided by 4G. We give a proof of the proposal in the classical regime based on a simple local entropy condition.
description: 12 pages, 2 figures, comments and references added, corrections of the expansion rate of timelike geodesics
Application of Weighted Average Method in Evaluation System for Rural Cadre Distance Education
Creators: name: Dai, Li-Na
name: Zheng, Bo-Wei
name: Dong, Hai-Ge
name: Dai, Li-Na
name: Zheng, Bo-Wei
name: Dong, Hai-Ge
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: Rural modern distance education
subject: Weighted average method
subject: Weight distribution
subject: Calculation model

description: We elaborate the application method, process and effect of weighted average method in the examination and evaluation system for modern distance education of rural party members and cadres. The study shows that this method reflects the evaluation results objectively and comprehensively and plays a remarkable role in establishing and improving the examination and evaluation system, thus will have an important reference value for the development of modern distance education of rural party members and cadres in the future.
Status of Evidence for Neutrinoless Double Beta Decay
Creators: name: Klapdor-Kleingrothaus, H. V.
name: Dietz, A.
name: Krivosheina, I. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The present experimental status in the search for neutrinoless double beta decay is reviewed, with emphasis on the first indication for neutrinoless double beta decay found in the Heidelberg-Moscow experiment, giving first evidence for lepton number violation and a Majorana nature of the neutrinos. Future perspectives of the field are briefly outlined.
description: 37 pages, latex, 23 figures, Published in Found. Phys. 32 (2002) 1181-1223 and Presented at Fourth Heidelberg International Conference on Dark Matter in Astro- and Particle Physics, DARK2002, Cape Town, South Africa, 4 - 9 February, 2002, eds. H.V. Klapdor-Kleingrothaus and R. Viollier, Springer-Verlag Heidelberg, (2002) 367-403 see Home Page of Heidelberg Non-Accelerator Particle Physics Group: http://www.mpi-hd.mpg.de/non_acc/buecher.html#DARK2002
Analysis on Current Situations of Endangered P. intermedius S. Y. Chen
Creators: name: Xu, Yuan-Ke
name: Zhang, Shao-Hua
name: Peng, Xue-Ku
name: Liu, Rao
name: Xu, Yuan-Ke
name: Zhang, Shao-Hua
name: Peng, Xue-Ku
name: Liu, Rao
Publisher: name: Unknown
Year: 2012
Subjects: subject: Agribusiness
subject: P. intermedius S. Y. Chen
subject: Current situations
subject: Analysis on endangered situations

description: We carried out a general survey of current situations of P. intermedius S. Y. Chen. Results show that P. intermedius S. Y. Chen is distributed in Dongkeng Township, Jingnan Township and Yanxi Township. It covers an area of 262.51 hm2. The distribution areas are narrow and limited. What’s worse, it suffers from serious destruction and has been withered in large areas. Besides, according to current introduction test, it is difficult to survive in other places. In accordance with Exploring the Criteria for Endangered Categories of Bamboo Species from China put forward by Ma Naixun et al from the Research Institute of Subtropical Forestry of Chinese Academy of Forestry (RISFCAF), we propose incorporating P. intermedius S. Y. Chen into vulnerable species for protection.
title: Il paesaggio storico del velabro a Roma: un'unità didattica interdisciplinare per il ginnasio
Creators: name: Russo De Matteis, Andreina
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Ipotesi di lavoro Approccio conoscitivo alla zona del Velabro a Roma sulla scorta del libro VIII dell'Eneide e di altri testi classici.
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
Environmentally-induced exceptional points in elastodynamics
Creators: name: Dominguez-Rocha, V.
name: Thevamaran, Ramathasan
name: Ellis, F. M.
name: Kottos, T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We study the nature of an environment-induced exceptional point in a non-Hermitian pair of coupled mechanical oscillators. The mechanical oscillators are a pair of pillars carved out of a single isotropic elastodynamic medium made of aluminum and consist of carefully controlled differential losses. The inter-oscillator coupling originates exclusively from background modes associated with the "environment", that portion of the structure which, if perfectly rigid, would support the oscillators without coupling. We describe the effective interaction in terms of a coupled mode framework where only one nearby environmental mode can qualitatively reproduce changes to the exceptional point characteristics. Our experimental and numerical demonstrations illustrates new directions utilizing environmental mode control for the implementation of exceptional point degeneracies. Potential applications include a new type of non-invasive, dfferential atomic force microscopy and hypersensitive sensors for the structural integrity of surfaces.
title: Il paesaggio: cosa, come e perchè a scuola
Creators: name: De Vecchis, Gino
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Il paesaggio geografico: un concetto, un simbolo ... II concetto di paesaggio è stato fin dal secolo scorso momento fondamentale e rappresentativo dell'indagine geografica, tanto da venire quasi ad essere identificato con questa: il paesaggio preso a simbolo della geografia. Esemplare è la frase che Emmanuel De Martonne pronunciò, nel 1938, al Congresso Internazionale di Amsterdam: "Mais le paysage c'est toute la géographie!". Poco più tardi un altro grande geografo, Roberto Almagià, definiva la geografia come la "scienza che studia e descrive scientificamente i paesaggi".
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
Coherent single-photon scattering spectra for a giant-atom waveguide-QED system beyond dipole approximation
Creators: name: Cai, Q. Y.
name: Jia, W. Z.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the single-photon scattering spectra of a giant atom coupled to a one dimensional waveguide via multiple connection points or a continuous coupling region. Using a full quantum mechanical method, we obtain the general analytic expressions for the single-photon scattering coefficients, which are valid in both the Markovian and the non-arkovian regimes. We summarize the influences of the non-dipole effects, mainly caused by the phases accumulated by photons traveling between coupling points, on the scattering spectra. We find that under the Markovian limit, the phase decay is detuning-independent, resulting in Lorentzian lineshapes characterized by the Lamb shifts and the effective decay rates. While in the non-Markovian regime, the accumulated phases become detuning-dependent, giving rise to non-Lorentzian lineshapes, characterized by multiple side peaks and total transmission points. Another interesting phenomenon in the non-Markovian regime is generation of broad photonic band gap by a single giant atom. We further generalize the case of discrete coupling points to the continuum limit with atom coupling to the waveguide via a continuous area, and analyze the scattering spectra for some typical distributions of coupling strength.
description: 12 pages, 8 figures
Entanglement Entropy and Quantum Field Theory
Creators: name: Calabrese, Pasquale
name: Cardy, John
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We carry out a systematic study of entanglement entropy in relativistic quantum field theory. This is defined as the von Neumann entropy S_A=-Tr rho_A log rho_A corresponding to the reduced density matrix rho_A of a subsystem A. For the case of a 1+1-dimensional critical system, whose continuum limit is a conformal field theory with central charge c, we re-derive the result S_A\sim(c/3) log(l) of Holzhey et al. when A is a finite interval of length l in an infinite system, and extend it to many other cases: finite systems,finite temperatures, and when A consists of an arbitrary number of disjoint intervals. For such a system away from its critical point, when the correlation length ξis large but finite, we show that S_A\sim{\cal A}(c/6)\logξ, where \cal A is the number of boundary points of A. These results are verified for a free massive field theory, which is also used to confirm a scaling ansatz for the case of finite-size off-critical systems, and for integrable lattice models, such as the Ising and XXZ models, which are solvable by corner transfer matrix methods. Finally the free-field results are extended to higher dimensions, and used to motivate a scaling form for the singular part of the entanglement entropy near a quantum phase transition.
description: 33 pages, 2 figures. Our results for more than one interval are in general incorrect. A note had been added discussing this
Comments on Global Parton Analyses
Creators: name: Martin, A. D.
name: Ryskin, M. G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the causes which can limit the accuracy of the predictions based on the conventional PDFs when including in global parton analyses the data at moderate scales $μ$. The first is the existence of power corrections ${\cal O} (Q_0^2/μ^2)$ due to the double counting of contributions arising from the region below the input scale $Q_0$. The second concerns the possible inclusion of the BFKL re-summation of the $(α_s\ln (1/x))^n$ terms. The third is the treatment of the heavy-quark thresholds. We show how to include the heavy-quark masses ($m_h$ with $h=c,b,t$) in DGLAP evolution which provides the correct {\it smooth} behaviour through the threshold regions and how to subtract the low parton virtuality $|k^2|
description: 15 pages, 3 figures. arXiv admin note: text overlap with arXiv:1307.3508
title: Aspetti geografico-fisici e geomorfologici dei paesaggi laziali
Creators: name: Caputo, Claudio
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: Negli attuali limiti amministrativi il Lazio manca di unità o di omogeneità naturale: infatti il suo territorio risulta costituito da un insieme di elementi orografici, morfologici e geologici assai differenti, che danno luogo a paesaggi molto diversi fra di loro. Questa regione comprende, infatti, una limitata parte dell'asse della catena appenninica (Monti Reatini), come noto maggiormente sviluppata nella regione abruzzese, unitamente ad altre catene marginali quali i Monti Simbruini ed Emici. Verso il Tirreno si ha una successione eterogenea di edifici vulcanici spenti, di alcuni gruppi montuosi carbonatici (Monti Lepini-Ausoni-Aurunci) e di qualche gruppo minore o rilievo isolato. Inoltre, si nota la presenza di ripiani poco elevati o di basse colline, che lasciano uno spazio limitato a pianure vere e proprie. Nel complesso, quindi, si può parlare di una regione più che altro montagnosa o collinare: secondo alcune valutazioni statistiche indicative, il 26% risulterebbe occupato da montagna, il 54% da collina e solo il 20% da pianura (fig. 1).
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
A Method for Black Hole Mass Determination in Accretion Powered X-Ray Sources
Creators: name: Shrader, Chris
name: Titarchuk, Lev
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We describe a method for the determination of black-hole masses based on information inferred from high-energy spectra. It is required that the spectral energy distribution consist of thermal and Comptonized components. One can then, in principle, infer the depth of the gravitational potential well for sources of known distance. The thermal component is inferred by the integration of a blackbody spectral form over the disk. We assume that the color temperature distribution in the disk has a specific shape given by the Shakura-Sunyaev (1973) disk model which goes to zero at the inner disk radius and at infinity and has a maximum at 4.2 Schwarzchild radii. In this formulation there is only one parameter, the so called color correction factor, relating the apparent temperature to effective temperature which characterizes the thermal emission component. We have made use of improved Galactic black hole binary dynamical mass determinations to derive, in effect, an empirical calibration of this factor. We then present our analysis of observational data for representative objects of several classes; Galactic black hole X-ray binaries, narrow line Seyfert galaxies (NLS1), and ``ultra-luminous'' extragalactic X-ray sources (ULX). We then apply our mass determination calculation and present our results. We argue that this approach can potentially fill a void in the current knowledge of NLS1 and ULX properties, and discuss how a deeper understanding of both classes has relevance to the broader issues of how cosmic black holes, beyond the stellar-mass realm, are formed and what is their overall mass distribution.
description: 15 pages, 3 tables, 6 figures. Accepted for publication in ApJ, 1st of August
Wave reflection and transmission at interface of convective and stably stratified regions in a rotating star or planet
Creators: name: Wei, Xing
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We use a simplified model to study wave reflection and transmission at interface of convective region and stably stratified region (e.g. radiative zone in star or stratification layer in gaseous planet). Inertial wave in convective region and gravito-inertial wave in stably stratified region are considered. We begin with polar area and then extend to any latitude. Six cases are discussed (see Table 1), and in Case 2 both waves co-exist in both regions. Four configurations are further discussed for Case 2. The angles and energy ratios of wave reflection and transmission are calculated. It is found that wave propagation and transmission depend on the ratio of buoyancy frequency to rotational frequency. In a rapidly rotating star or planet wave propagates across interface and most of energy of incident wave is transmitted to the other region, but in a slowly rotating star or planet wave transmission is inhibited.
Geometrical Dependence of High-Bias Current in Multiwalled Carbon Nanotubes
Creators: name: Bourlon, B.
name: Glattli, D. C.
name: Placais, B.
name: Berroir, J. M.
name: Forro, L.
name: Bachtold, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the high-bias transport properties of the different shells that constitute a multiwalled carbon nanotube. The current is shown to be reduced as the shell diameter is decreased or the length is increased. We assign this geometrical dependence to the competition between electron-phonon scattering process and Zener tunneling.
description: 4 pages, 4 figures
MOESM2 of Graph-based data clustering via multiscale community detection
Creators: name: Zijing Liu
name: Barahona, Mauricio
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 2 Supplementary Figure: Multiscale Markov Stability analysis of the WBDC dataset.
Measurement of the $HZγ$ Coupling at the Future Linear \ee Collider
Creators: name: Dubinin, M.
name: Schreiber, H. J.
name: Vologdin, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the prospects for measuring the $H Z γ$ coupling of a Standard Model-like Higgs boson with a mass between 120 and 160 GeV at the future TESLA linear \ee collider, assuming an integrated luminosity of 1 ab$^{-1}$ and a center-of-mass energy of 500 GeV. We consider the Higgs boson produced in association with $ν_e \bar{ν_e}$ via the $W W$ fusion reaction $e^+e^- \to ν_e \bar{ν_e} H$, followed by the rare decay into a $Z$ boson and a photon, $H \to Z γ$. Accounting for all main background contributions, different selection procedures are discussed. Uncertainties on the \hZg branching fraction of approximately 48% (27%, 44%) can be achieved in unpolarised \ee collisions for $M_H$ = 120 (140, 160) GeV. With appropriate initial state polarisations $Δ$BF(\hZg)/BF(\hZg), or the precisions on the \hZg partial width, can be improved to 29% (17%, 27%) and provide valuable information on the $HZγ$ coupling. We regard our results as a convincing confirmation of the great potential of a linear collider to access and reliably measure important parameters of the Higgs boson despite initially overwhelming background with final state signature similar to the signal events.
description: 17 pages, 6 figures
MOESM3 of Graph-based data clustering via multiscale community detection
Creators: name: Zijing Liu
name: Barahona, Mauricio
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 3 Supplementary Table: Performance of clustering methods measured by Purity.
Recognizing semantic relation in sentence pairs using Tree-RNNs and Typed dependencies
Creators: name: Kleenankandy, Jeena
name: Nazeer, K A Abdul
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Recursive neural networks (Tree-RNNs) based on dependency trees are ubiquitous in modeling sentence meanings as they effectively capture semantic relationships between non-neighborhood words. However, recognizing semantically dissimilar sentences with the same words and syntax is still a challenge to Tree-RNNs. This work proposes an improvement to Dependency Tree-RNN (DT-RNN) using the grammatical relationship type identified in the dependency parse. Our experiments on semantic relatedness scoring (SRS) and recognizing textual entailment (RTE) in sentence pairs using SICK (Sentence Involving Compositional Knowledge) dataset show encouraging results. The model achieved a 2% improvement in classification accuracy for the RTE task over the DT-RNN model. The results show that Pearson's and Spearman's correlation measures between the model's predicted similarity scores and human ratings are higher than those of standard DT-RNNs.
Normal-superconducting transition induced by high current densities in YBa2Cu3O7-d melt-textured samples and thin films: Similarities and differences
Creators: name: Gonzalez, M. T.
name: Vina, J.
name: Curras, S. R.
name: Veira, J. A.
name: Maza, J.
name: Vidal, F.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Current-voltage characteristics of top seeded melt-textured YBa2Cu3O7-d are presented. The samples were cut out of centimetric monoliths. Films characteristics were also measured on microbridges patterned on thin films grown by dc sputtering. For both types of samples, a quasi-discontinuity or quenching was observed for a current density J* several times the critical current density Jc. Though films and bulks much differ in their magnitude of both Jc and J*, a proposal is made as to a common intrinsic origin of the quenching phenomenon. The unique temperature dependence observed for the ratio J*/Jc, as well as the explanation of the pre-quenching regime in terms of a single dissipation model lend support to our proposal.
description: 10 pages, 10 figures, submitted to Physical Review B
title: Musica e paesaggio
Creators: name: Meloncelli, Raoul
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: L'argomento richiede una precisazione preliminare che si rende necessaria ogniqualvolta il linguaggio musicale viene erroneamente considerato, non nell'ambito dei suoi limiti espressivi che sono quelli propri dei valori sonori, ma quale veicolo descrittivo di elementi extramusicali con cui si viene ad affrontare il concetto di musica a programma.
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
BALQSO Spectra Explained by Shock Disruption of Galactic Clouds
Creators: name: Hess, Meir Zeilig
name: Levinson, Amir
name: Xu, Xinfeng
name: Arav, Nahum
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Blue-shifted Broad Absorption Lines (BALs) detected in quasar's spectra are indicative of AGN outflows. We show, using 2D hydrodynamical simulations, that disruption of interstellar clouds by a fast AGN wind can lead to formation of cold, dense high speed blobs that give rise to broad absorption features in the transmission spectrum of the AGN continuum source. For a wind velocity of $0.1 c$ and sufficiently high cloud density ($n_{c}$ < $10^4$ cm$^{-3}$, depending on size), absorption troughs with velocities up to about $3000$ km s$^{-1}$ can be produced. For slower winds and/or lower cloud density the anticipated velocity of the absorbing clouds should be smaller.
description: 10 pages, 8 figures
THE EFFECTS OF THE GLOBAL ECONOMIC CRISIS ON THE MARKETS FOR FOSSIL AND RENEWABLE FUELS
Creators: name: Jobbagy, Peter
name: Bai, Attila
name: Jobbagy, Peter
name: Bai, Attila
Publisher: name: Unknown
Year: 2012
Subjects: subject: Environmental Economics and Policy
subject: global economic crisis
subject: fuel market
subject: biofuels Figure 2:

description: The 2008/2009 world economic crisis had significant impact on oil and fuel markets. This crisis has been developed from the meltdown of the American mortgage and financial market and spread throughout the global economy. As each country reacted differently to the crisis, the changes in the fuel market have also shown significant geographic variation. In our present research, the changes of the US, German and Hungarian fuel markets were analysed, looking for answers to the reasons behind different crisis reactions. We examined the tendency of fuel consumption, the changes of gasoline and diesel price elasticity and the possible effects of the crisis on the regulatory system.
Bell inequalities versus entanglement and mixedness for a class of two - qubit states
Creators: name: Derkacz, L.
name: Jakobczyk, L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For a class of mixed two -qubit states we show that it is not possible to discriminate between states violating or non - violating Bell - CHSH inequalities, knowing only their entanglement and mixedness. For a large set of possible values of these quantities, we construct pairs of states with the same entanglement and mixedness such that one state is violating but the other is non - violating Bell - CHSH inequality.
description: 11 pages
title: Un esempio di integrazione funzionale: Analisi geo-topologica della rete dei trasporti in Finlandia
Creators: name: Paoluzi, Maria Ludovica
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: La Finlandia è stata ed è tutt'ora un Paese ai margini dell'Europa Comunitaria. Le sue vicende storiche, infatti, l'hanno avvicinata più alla Russia che ai Paesi Scandinavi e ancor meno all'Europa. È solo negli ultimi decenni che il Paese si è rivolto all'Occidente.
description: Semestrale di studi e ricerche di geografia, N. 1 (1992)
title: Alle origini della pittura di paesaggio
Creators: name: Cieri Via, Claudia
Publisher: name: Semestrale di studi e ricerche di geografia
Year: 2019

description: La definizione del paesaggio, come "intero paese o parte di esso in quanto è scelto a ritrarsi in pittura", implica un rapporto fra pittura e paesaggio che si configura in termini di rappresentazione artistica di una realtà naturale. Tale rapporto tende a privilegiare ora gli aspetti percettivi e tecnico-scientifici - che a partire dalle ricerche prospettiche quattrocentesche trovarono una più precisa definizione nel vedutismo e nel panorama - ora quelli legati alla rappresentazione naturalistico-mimetica, oppure ideale, o ancora volti ad indagare gli aspetti significanti e simbolici del paesaggio.
description: Semestrale di studi e ricerche di geografia, N. 2 (1993)
MOESM1 of Graph-based data clustering via multiscale community detection
Creators: name: Zijing Liu
name: Barahona, Mauricio
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Additional file 1 Supplementary Figure: Multiscale Markov Stability analysis of the Control Chart dataset.
Neue Ausgrabungen und Forschungen in Niedersachsen, Band IV
Creators: name: Janssen, Walter
Publisher: name: Bonner Jahrbücher
Year: 2021

description: Rezension zu: Neue Ausgrabungen und Forschungen in Niedersachsen, Band IV. Fur die Arbeitsgemeinschaft der Ur- und Frühgeschichtsforscher in Niedersachsen hrsg. von H. Jankuhn. August Lax, Hildesheim 1969. 427 Seiten, zahlreiche Abbildungen, Plane und Tafeln
description: Bonner Jahrbücher, Bd. 170 (1970): Bonner Jahrbücher