cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Proposal for a Comprehensive (Crypto) Asset Taxonomy
Creators: name: Ankenbrand, Thomas
name: Bieri, Denis
name: Cortivo, Roland
name: Hoehener, Johannes
name: Hardjono, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: Developments in the distributed ledger technology have led to new types of assets with a broad range of purposes. Although some classification frameworks for common instruments from traditional finance and some for these new, so called cryptographic assets already exist and are used, a holistic approach to integrate both worlds is missing. The present paper fills this research gap by identifying 14 attributes, each of which is assigned different characteristics, that can be used to classify all types of assets in a structured manner. Our proposed taxonomy which is an extension of existing classification frameworks, summarises these findings in a morphological box and is tested for practicability by classifying exemplary assets like cash and bitcoin. The final classification framework can help to ensure that the various stakeholders, such as investors or supervisors, have a consistent view of the different types of assets, and in particular of their characteristics, and also helps to establish standardised terminology.
Eastern Enlargement of the EU: A Comprehensive Welfare Assessment
Creators: name: Kohler, Wilhelm
name: Kohler, Wilhelm
Publisher: name: Unknown
Year: 2004
Subjects: subject: International Relations/Trade
subject: Political Economy
subject: EU Enlargement
subject: Economic Integration
subject: Commercial Policy
subject: Migration
subject: Welfare Analysis
subject: Computable General Equilibrium
subject: Search Unemployment

description: This paper takes a welfare-view on eastern enlargement of the EU, focusing on incumbent countries. Enlargement is decomposed into three elements: Single-market integration on commodity markets, budgetary costs from EU-expenditure policies, and single market- induced migration from new to present member countries. I first use an analytical model to derive a welfare equation that identifies the principle channels for incumbent country welfare gains and losses from enlargement, including product differentiation, capital accumulation, and unemployment due to search-costs. I then propose a method that allows to extend welfare results obtained from a detailed calibrated version of this model for Germany to other incumbent countries. The approach relies on model elasticities extracted from the German model which are then applied to other countries' idiosyncratic "enlargement-shocks". Constructing detailed indices for such country specific "enlargement-shocks", I arrive at characteristic inter-country pattern of enlargement- induced welfare effects for all EU15 countries. Aggregating these across countries reveals enlargement to be beneficial for the union as a whole, although several countries stand to suffer welfare losses.
Effect of Landau quantization on linear magnetoresistance of periodically modulated two-dimensional electron gas
Creators: name: Raichev, O. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The linear response of two-dimensional electron gas in a perpendicular magnetic field in the presence of a spatially dependent classically smooth electrostatic potential is studied theoretically, by application of the Kubo formula for nonlocal conductivity tensor. In the classical transport regime, a general expression for the conductivity tensor through the correlation functions of the homogeneous electron gas is derived. The quantum transport regime, when Landau quantization is essential, is studied for the case of unidirectional periodic potential modulation. Apart from the Shubnikov-de Haas oscillations, the resistivity can demonstrate quantum oscillations with larger periods and smaller amplitudes, which survive when temperature increases. These oscillations exist when the modulation amplitude considerably exceeds the cyclotron energy so the Landau subbands, formed out of the Landau levels by the modulation potential, overlap in the energy domain. Both diagonal components of the resistivity tensor demonstrate oscillations related to modification of the density of states by the modulation. In addition, the resistivity component perpendicular to the modulation axis, which is caused by the scattering-assisted hopping transport, shows another kind of oscillations related to enhancement of the hopping probability when the guiding center of cyclotron orbit shifts by the doubled cyclotron radius. It is suggested that such high-temperature oscillations can be detected under conditions when the modulation period considerably exceeds the cyclotron radius.
Usuwanie niejonowego surfaktantu z wód ściekowych z wykorzystaniem synergicznego działania metod zaawansowanego utleniania.
Creators: name: Kuźmiński, Kamil
Publisher: name: figshare
Year: 2020
Subjects: subject: 30601 Catalysis and Mechanisms of Reactions
subject: FOS: Chemical sciences

description: Comparison of separate and combined AOP techniques for non-ionic surfactant decomposition (TX-100).
12C/13C in atmospheres of red giants and peculiar stars
Creators: name: Pavlenko, Yakiv V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We determine the carbon isotopic ratios in the atmospheres of some evolved stars in both globular clusters and the disk of our Galaxy. Analysis of 12CO and 13CO bands at 2.3 micron was carried out using fits to observed spectra of red giants and Sakurai's object (V4334 Sgr). The dependence of theoretical spectra on the various input parameters was studied in detail. The computation of model atmospheres and a detailed abundance analysis was performed in a self-consistent fashion. A special procedure for determining the best fits to observed spectra was used. We show, that globular cluster giants with [Fe/H] < -1.3 have a low 12C/13C = 4 +/- 1 abundance ration. In the spectra of Sakurai's object (V4334 Sgr) taken between 1997-98, the 2.3 micron spectral region is veiled by hot dust emission. By fitting UKIRT spectra we determined 12C/13C = 4 +/- 1 for the July, 1998 spectrum. CO bands in the spectra of ultracool dwarfs are modelled as well.
description: Poster for IAU Symposium No. 228, "From Lithium to Uranium: Elemental Tracers of Early Cosmic Evolution", V. Hill, P. Francois & F. Primas, eds. (2005); 2 pages, ppt is available on ftp://ftp.mao.kiev.ua/%2f/pub/users/yp/12C13C_for_IAU228.ppt
Gravity Approach for Exploring Baltic Sea Regional Integration in the Field of International Trade
Creators: name: Paas, Tiiu
name: Paas, Tiiu
Publisher: name: Unknown
Year: 2002
Subjects: subject: International Relations/Trade
subject: International trade
subject: gravity models
subject: Baltic Sea region

description: The paper is inviting a reader to think to what extent we can use the knowledge resulting from laws of nature for exploring economic processes. In order to look for the answers on this question, the paper is going to explore international trade flows between the Baltic Sea region countries using a gravity approach. Attention is paid to analyzing forces that attract foreign trade flows and to exploring the influence of distance as an indicator that expresses both transportation costs and cultural proximity of the countries. The results of modeling support the statement that the size of economy has statistically significant and positive influence on the bilateral trade relations of the region. The influence of economic development level that is expressed by GDP per capita is statistically insignificant. In the case of the Baltic regional integration, distance is expressing most significantly cultural proximity and historical relationship between the countries. The regional integration effect in trade is inherently larger for small countries. Small economies in transition have to look for a regional niche to penetrate into the international market.
The World Bank as an International Financial Institution
Creators: name: Shams, Rasul
name: Shams, Rasul
Publisher: name: Unknown
Year: 2004
Subjects: subject: Financial Economics
subject: international lending
subject: economic development
subject: public goods
subject: interest groups

description: The World Bank is a prestigious and large international financial institution. Since its foundation it has widened the scope and the size of its activities. One interpretation of what the World Bank is doing is the provision of public goods. If we take this interpretation seriously the comprehensiveness of the Bank's activity suggests that the Bank is assuming more and more the functions of a world government in the making. An alternative interpretation would look at the World Bank as a huge bureaucratic organization, acting on its own behalf. This interpretation can not be endorsed fully by the available information, but only in the sense of bureau-shaping. The Bank itself is proud of being a knowledge bank. But its actual activity is the popularization of ideas on development and not the application of research outcomes in its day-to-day operations. The most appropriate interpretation of the activity of the World Bank is that its changing scope and size is shaped heavily by pressure from different interest groups.
Project Aid or Budget Aid? The Interests of Governments and Financial Institutions
Creators: name: Hefeker, Carsten
name: Hefeker, Carsten
Publisher: name: Unknown
Year: 2005
Subjects: subject: Financial Economics
subject: Political Economy
subject: aid policy
subject: conditionality
subject: international financial institution
subject: interest groups
subject: D73
subject: F35
subject: O23

description: The paper compares different aid policy instruments and their effect on the target group. Starting from a situation where interest groups compete for the resources of the government, international financial institutions aim to change the policy outcome. They can either directly support one group or condition their financial help to the government on its policy. Apart from a normative analysis which policy is more adequate to help one group, the paper also asks what happens if the IFI is driven by bureaucratic selfinterest, and whether this distort policies.
Spin-lattice relaxation phenomena in manganite La0.7Sr0.3MnO3 thin films
Creators: name: Weber, M. C.
name: Hillebrands, B.
name: Moshnyaga, V.
name: Samwer, K.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Time-resolved magneto-optics was used to study spin-lattice relaxation dynamics in thin epitaxial La0.7Sr0.3MnO3 films. Two distinct recovery regimes of the ferromagnetic order can be resolved upon photoexcitation, which manifest themselves by two different relaxation times. A pump pulse energy independent spin-lattice relaxation time can be deduced. Due to a weak spin-orbit coupling in manganites this spin-lattice relaxation time is much longer than in ferromagnetic metals. Heat flow into the substrate sets the ultimate recovery speed of the ferromagnetic order and allows for a determination of heat diffusion properties of manganite films.
description: 15 pages, 3 figures
On the Endogeneity of an Exogenous OCA-Criterion: The Impact of Specialisation on the Synchronisation of Regional Business Cycles in Europe
Creators: name: Belke, Ansgar
name: Heine, Jens M.
name: Belke, Ansgar
name: Heine, Jens M.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: Agglomeration
subject: Specialisation
subject: Regional Employment
subject: European Monetary Union
subject: Regional Business Cycles
subject: Synchronisation
subject: F15

description: This paper empirically assesses the impact of specialisation on the synchronisation of regional business cycles in two core countries of EMU, namely France and Germany. Several specialisation indices are introduced and some first stylised facts about interregional business cycle correlations are derived. Second, region pair specific and pooled estimations are enacted and tested for robustness in order to calculate the impact of specialization on the degree of business cycle synchronisation. However, our regression results confirm the hypothesis of a positive impact only partly, but they underline the problem of a common monetary policy for uncommon regions which has already existed in the DM- and in the Franc-zone before. Der vorliegende empirische Beitrag untersucht die Auswirkungen realwirtschaftlicher Veränderungen auf den konjunkturellen Gleichlauf regionaler Konjunkturzyklen. In einem ersten Schritt werden zunächst verschiedene Maßzahlen zur Bestimmung der regionalen Spezialisierung sowie einige stilisierte Fakten bezüglich des Synchronisationsverhaltens regionaler Konjunkturzyklen vorgestellt. In einem zweiten Schritt wird auf der Basis ökonometrischer Verfahren der quantitative Einfluss von Strukturveränderungen auf den Synchronisationsgrad ermittelt. Zwar kann die aufgestellte Hypothese einer messbaren Einwirkung nur partiell bestätigt werden, die Resultate reflektieren jedoch das schon in der DM- und Franc-Zone bestehende Problem einer gemeinsamen Geldpolitik für unterschiedliche Regionen.
N-nH complexes in GaAs studied at the atomic scale by cross-sectional scanning tunneling microscopy
Creators: name: Tjeertes, D.
name: Verstijnen, T. J. F.
name: Gonzalo, A.
name: Ulloa, J. M.
name: Sharma, M. S.
name: Felici, M.
name: Polimeni, A.
name: Biccari, F.
name: Gurioli, M.
name: Pettinari, G.
name: Şahin, C.
name: Flatté, M. E.
name: Koenraad, P. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Hydrogenation of nitrogen (N) doped GaAs allows for reversible tuning of the bandgap and the creation of site controlled quantum dots through the manipulation of N-nH complexes, N-nH complexes, wherein a nitrogen atom is surrounded by n hydrogen (H) atoms. Here we employ cross-sectional scanning tunneling microscopy (X-STM) to study these complexes in the GaAs (110) surface at the atomic scale. In addition to that we performed density functional theory (DFT) calculations to determine the atomic properties of the N-nH complexes. We argue that at or near the (110) GaAs surface two H atoms from N-nH complexes dissociate as an H$_2$ molecule. We observe multiple features related to the hydrogenation process, of which a subset is classified as N-1H complexes. These N-1H related features show an apparent reduction of the local density of states (LDOS), characteristic to N atoms in the GaAs (110) surface with an additional apparent localized enhancement of the LDOS located in one of three crystal directions. N-nH features can be manipulated with the STM tip. Showing in one case a switching behavior between two mirror-symmetric states and in another case a removal of the localized enhancement of the LDOS. The disappearance of the bright contrast is most likely a signature of the removal of an H atom from the N-nH complex.
description: 11 pages, 12 figures
Spin Effects in the Effective Field Theory Approach to Post-Minkowskian Conservative Dynamics
Creators: name: Liu, Zhengwen
name: Porto, Rafael A.
name: Yang, Zixin
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2021
Subjects: spin: effect
scattering: gravitation
correction: finite size
binary: compact
effective field theory
orbit
boundary condition
angular momentum
binding energy
Hamiltonian
covariance
rotation

description: Building upon the worldline effective field theory (EFT) formalism for spinning bodies developed for the Post-Newtonian regime, we generalize the EFT approach to Post-Minkowskian (PM) dynamics to include rotational degrees of freedom in a manifestly covariant framework. We introduce a systematic procedure to compute the total change in momentum and spin in the gravitational scattering of compact objects. For the special case of spins aligned with the orbital angular momentum, we show how to construct the radial action for elliptic-like orbits using the Boundary-to-Bound correspondence. As a paradigmatic example, we solve the scattering problem to next-to-leading PM order with linear and bilinear spin effects and arbitrary initial conditions, incorporating for the first time finite-size corrections. We obtain the aligned-spin radial action from the resulting scattering data, and derive the periastron advance and binding energy for circular orbits. We also provide the (square of the) center-of-mass momentum to ${\cal O}(G^2)$, which may be used to reconstruct a Hamiltonian. Our results are in perfect agreement with the existent literature, while at the same time extend the knowledge of the PM dynamics of compact binaries at quadratic order in spins.
Limits on WIMP cross-sections from the NAIAD experiment at the Boulby Underground Laboratory
Creators: name: The UK Dark Matter Collaboration
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The NAIAD experiment (NaI Advanced Detector) for WIMP dark matter searches at the Boulby Underground Laboratory (North Yorkshire, UK) ran from 2000 until 2003. A total of 44.9 kg x years of data collected with 2 encapsulated and 4 unencapsulated NaI(Tl) crystals with high light yield were included in the analysis. We present final results of this analysis carried out using pulse shape discrimination. No signal associated with nuclear recoils from WIMP interactions was observed in any run with any crystal. This allowed us to set upper limits on the WIMP-nucleon spin-independent and WIMP-proton spin-dependent cross-sections. The NAIAD experiment has so far imposed the most stringent constraints on the spin-dependent WIMP-proton cross-section.
description: 14 pages, 4 figures, to be published in Phys. Lett. B
Nonperturbative dynamical many-body theory of a Bose-Einstein condensate
Creators: name: Gasenzer, Thomas
name: Berges, Juergen
name: Schmidt, Michael G.
name: Seco, Marcos
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A dynamical many-body theory is presented which systematically extends beyond mean-field and perturbative quantum-field theoretical procedures. It allows us to study the dynamics of strongly interacting quantum-degenerate atomic gases. The non-perturbative approximation scheme is based on a systematic expansion of the two-particle irreducible effective action in powers of the inverse number of field components. This yields dynamic equations which contain direct scattering, memory and ``off-shell'' effects that are not captured by the Gross-Pitaevskii equation. This is relevant to account for the dynamics of, e.g., strongly interacting quantum gases atoms near a scattering resonance, or of one-dimensional Bose gases in the Tonks-Girardeau regime. We apply the theory to a homogeneous ultracold Bose gas in one spatial dimension. Considering the time evolution of an initial state far from equilibrium we show that it quickly evolves to a non-equilibrium quasistationary state and discuss the possibility to attribute an effective temperature to it. The approach to thermal equilibrium is found to be extremely slow.
description: 21 pages RevTeX, 12 figures
Change and Crisis in the Japanese Banking Industry
Creators: name: Krawczyk, Mariusz K.
name: Krawczyk, Mariusz K.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Financial Economics
subject: Japanese economy
subject: banking crisis
subject: financial liberalisation

description: The weakness of the Japanese banking industry, suffering from acute problem of non-performing loans, prevents Japan from restoring sound growth rates despite having undertaken structural reforms and substantial fiscal policy efforts, and, through impairing transmission channels of monetary policy, it has also made ineffective efforts to stimulate the economy through "zero interest rates" and quantitative easing policy. Misunderstanding the roots of the banking crisis contributed greatly to its exceptional length and depth and prevented its early solution. Poor coordination and sequencing of liberalization of financial services together with macroeconomic policy mistakes have been responsible for the crisis. But the origins of those mistakes can be traced to the bureaucratic character of the country's policy-making process often lacking a comprehensive analysis of macroeconomic effects of a particular policy decision. Simple solution to the banking crisis in the form of eliminating non-performing loans burden, bailing out ailing financial institutions etc., if not accompanied by decisive steps restoring rationality to the public spending and resolving the problems arising from the presence of the government sponsored financial institutions, may not be sufficient to achieve sound growth and prevent similar crises in the future.
La vie de saint Jean le Pauvre ou le Calybite en version géorgienne
Creators: name: Van Esbroeck, Michel
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 82 (1998): Oriens christianus, Band 82
The Impact of EU Enlargement on European Border Regions
Creators: name: Niebuhr, Annekatrin
name: Niebuhr, Annekatrin
Publisher: name: Unknown
Year: 2005
Subjects: subject: International Relations/Trade
subject: Political Economy
subject: Integration
subject: market access
subject: EU enlargement
subject: border regions

description: EU enlargement is supposed to entail profound impact on the location of economic activities in Europe. Although there is concern about the implications of enlargement for regional disparities in the EU, corresponding empirical results are still rare. The objective of this analysis is to provide empirical evidence on enlargement effects with a special focus on border regions in the EU27 since they are likely to play a critical role within the spatial dynamics initiated by integration. Departing from a three-region economic geography model we investigate whether changes in market access released by integration result in above-average integration benefits in border regions.
Probing many-body localization on a noisy quantum computer
Creators: name: Zhu, D.
name: Johri, S.
name: Nguyen, N. H.
name: Alderete, C. Huerta
name: Landsman, K. A.
name: Linke, N. M.
name: Monroe, C.
name: Matsuura, A. Y.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A disordered system of interacting particles exhibits localized behavior when the disorder is large compared to the interaction strength. Studying this phenomenon on a quantum computer without error correction is challenging because even weak coupling to a thermal environment destroys most signatures of localization. Fortunately, spectral functions of local operators are known to contain features that can survive the presence of noise. In these spectra, discrete peaks and a soft gap at low frequencies compared to the thermal phase indicate localization. Here, we present the computation of spectral functions on a trapped-ion quantum computer for a one-dimensional Heisenberg model with disorder. Further, we design an error-mitigation technique which is effective at removing the noise from the measurement allowing clear signatures of localization to emerge as the disorder increases. Thus, we show that spectral functions can serve as a robust and scalable diagnostic of many-body localization on the current generation of quantum computers.
Phantom universe from CPT symmetric QFT
Creators: name: Andrianov, Alexander A.
name: Cannata, Francesco
name: Kamenshchik, Alexander Y.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Inspired by the generalization of quantum theory for the case of non-Hermitian Hamiltonians with CPT symmetry, we construct a simple classical cosmological scalar field based model describing a smooth transition from ordinary dark energy to the phantom one.
Can Global Climate Change affect Prices in the World Banana Market?
Creators: name: Blake, Daniella
name: Dawson, Carolina
name: Loeillet, Denis
name: Staver, Charles
name: Blake, Daniella
name: Dawson, Carolina
name: Loeillet, Denis
name: Staver, Charles
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Demand and Price Analysis
subject: Environmental Economics and Policy
subject: banana market
subject: extreme weather events
subject: global warming
subject: commodity markets
subject: food prices
subject: international food trade

description: This paper explores the potential impacts of extreme weather events associated with climate change on prices in the international banana market. First, we made an inventory of the events reported to have affected banana export volumes for six exporter countries, as well as events reported to have affected banana import prices in the French market, between the years 2000 to 2015. We used weekly time-series to examine the impact of reported events on banana export volumes and on banana import prices. The first results indicate that weather events were the most frequently reported events to impact on export volumes and on consumer demand, thus confirming that they play a frequent role in determining prices. However, we also identified a wide range of other non-weather events which affect volumes, consumer demand and thus prices. We demonstrated that the extent to which extreme weather events affect prices is primarily determined by the coincidence of events and by the structural context of the exporting and importing countries. This study helps to put the potential impact of weather events related to climate change into perspective and highlights the ongoing role of market mechanisms, policy makers and stakeholders’ strategies in price variations in international commodity markets.
Can Minor Planets be Used to Assess Gravity in the Outer Solar System?
Creators: name: Page, Gary L.
name: Dixon, David S.
name: Wallin, John F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The twin Pioneer spacecraft have been tracked for over thirty years as they headed out of the solar system. After passing 20 AU from the Sun, both exhibited a systematic error in their trajectories that can be interpreted as a constant acceleration towards the Sun. This Pioneer Effect is most likely explained by spacecraft systematics, but there have been no convincing arguments that that is the case. The alternative is that the Pioneer Effect represents a real phenomenon and perhaps new physics. What is lacking is a means of measuring the effect, its variation, its potential anisotropies, and its region of influence. We show that minor planets provide an observational vehicle for investigating the gravitational field in the outer solar system, and that a sustained observation campaign against properly chosen minor planets could confirm or refute the existence of the Pioneer Effect. Additionally, even if the Pioneer Effect does not represent a new physical phenomenon, minor planets can be used to probe the gravitational field in the outer Solar System and since there are very few intermediate range tests of gravity at the multiple AU distance scale, this is a worthwhile endeavor in its own right.
description: Accepted for publication in The Astrophysical Journal
Electronic properties of a nanotorus
Creators: name: Silva, J. E. G.
name: Furtado, J.
name: Ramos, A. C. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper we study the properties of an electron trapped on a torus surface. We consider the influence of surface curvature on the spectrum and the behaviour of the wave function. In addition, the effects of external electric and magnetic fields were explored. Two toroid configurations were considered, namely, a torus-like configuration and a ring-like configuration both in agreement with experimental data. We also obtain the bound states and discuss the role of geometry on the Landau levels.
description: 12 pages, 12 figures
The effect of collective spin-1 excitations on electronic spectra in high-Tc superconductors
Creators: name: Eschrig, Matthias
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We review recent experimental and theoretical results on the interaction between single-particle excitations and collective spin excitations in the superconducting state of high-Tc cuprates. We concentrate on the traces, that sharp features in the magnetic excitation spectrum imprint in the spectra of single-particle excitations. The review gives in the first part an overview over the main corresponding experimental results obtained by inelastic neutron scattering, angle resolved photoemission spectroscopy and optical spectroscopy, concentrating on the so-called magnetic resonance mode and the electronic self-energy effects that can be associated with it. In the second part theoretical explanations for the observed effects are reviewed, with an emphasis on the interpretation of the magnetic resonance feature as spin-1 exciton below a gapped continuum, and on such effects in the single-particle electronic spectrum that can be assigned to the interaction with the spin-1 resonance feature. The influence of the gapped spin-fluctuation continuum on the high-energy part of the electronic spectrum is discussed.
description: Review article, revised version, published in Advances in Physics, 137 pages, 75 figures; added References, added Chapters 3.3.3 and 3.6
Practical Quantum Key Distribution Secure Against Side-Channels
Creators: name: Navarrete, Álvaro
name: Pereira, Margarida
name: Curty, Marcos
name: Tamaki, Kiyoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: There is a big gap between theory and practice in quantum key distribution (QKD) because real devices do not satisfy the assumptions required by the security proofs. Here, we close this gap by introducing a simple and practical measurement-device-independent (MDI) QKD type of protocol, based on the transmission of coherent light, for which we prove its security against any possible device imperfection and/or side-channel at the transmitters' side. Besides using a much simpler experimental set-up and source characterization with only one single parameter, we show that the performance of the protocol is comparable to other MDI-QKD type of protocols which disregard the effect of several side-channels.
description: 9 pages, 4 figures. v2: results revised, typos corrected, appendix B extended
[Letter from Johan Nordal Fischer Wille]
Creators: name: Wille, Johan Nordal Fischer
Publisher: name: Unknown
Year: 1901
Subjects: Henckel, Alexander Hermanowitsch
Dahl, Ove Christian
Gunnerus, Johan Ernst

description: Request for Ove Dahl’s work about Gunnerus.
description: Handwritten notes on the letter.
Phase structure of an Abelian two-Higgs model and high temperature superconductors
Creators: name: Chernodub, M. N.
name: Ilgenfritz, E. -M.
name: Schiller, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the phase structure of a three dimensional Abelian Higgs model with singly- and doubly-charged scalar fields coupled to a compact Abelian gauge field. The model is pretending to describe systems of strongly correlated electrons such as high-Tc superconductivity in overdoped regime and exotic phases supporting excitations with fractionalized quantum numbers. We identify the Fermi liquid, the spin gap, the superconductor and the strange metallic phases in which densities and properties of holon and spinon vortices and monopoles are explored. The phase diagram in the 3D coupling space is predicted. We show that at sufficiently strong gauge coupling the spinon-pair and holon condensation transitions merge together and become, unexpectedly, first order.
description: 5 pages, 9 figures, RevTeX 4
Observations on Economic Adulteration of High-Value Food Products: The Honey Case
Creators: name: Fairchild, Gary F.
name: Nichols, John P.
name: Capps, Oral
name: Fairchild, Gary F.
name: Nichols, John P.
name: Capps, Oral
Publisher: name: Unknown
Year: 2003
Subjects: Agribusiness

description: The paper highlights the issue of economic adulteration of high-value food products and provides a context for discussion and analysis based on experiences with the U.S. honey industry. Perspectives on economic adulteration are identified, trends relevant to the issue of economic adulteration are discussed, and industry opinions on economic adulteration of honey are summarized. The paper is based on research funded by the National Honey Board to provide a platform for industry dialogue on the need for a quality-assurance program.
Fast electrical modulation of strong near-field interactions between erbium emitters and graphene
Creators: name: Cano, Daniel
name: Ferrier, Alban
name: Soundarapandian, Karuppasamy
name: Reserbat-Plantey, Antoine
name: Scarafagio, Marion
name: Tallaire, Alexandre
name: Seyeux, Antoine
name: Marcus, Philippe
name: de Riedmatten, Hugues
name: Goldner, Philippe
name: Koppens, Frank H. L.
name: Tielrooij, Klaas-Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Combining the quantum optical properties of single-photon emitters with the strong near-field interactions available in nanophotonic and plasmonic systems is a powerful way of creating quantum manipulation and metrological functionalities. The ability to actively and dynamically modulate emitter-environment interactions is of particular interest in this regard. While thermal, mechanical and optical modulation have been demonstrated, electrical modulation has remained an outstanding challenge. Here we realize fast, all-electrical modulation of the near-field interactions between a nanolayer of erbium emitters and graphene, by in-situ tuning the Fermi energy of graphene. We demonstrate strong interactions with a >1,000-fold increased decay rate for 25% of the emitters, and electrically modulate these interactions with frequencies up to 300 kHz - orders of magnitude faster than the emitters radiative decay (100 Hz). This constitutes an enabling platform for integrated quantum technologies, opening routes to quantum entanglement generation by collective plasmon emission or photon emission with controlled waveform.
description: to be published in Nat Commun
Laser detection using liquid crystal polarization modulators
Creators: name: Benton, David M
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Lasers can be identified by their relatively long coherence lengths using interferometry. A Mach Zehnder interferometer incorporating liquid crystal polarization modulators is demonstrated as a means of low cost, robust laser detection. Temporal modulations, as a signature of coherence can be induced by modulating polarization changes in liquid crystal modulators, using low voltages. Sensitivities of less than 10nW can be achieved. The suitability as a means of laser detection is discussed.
Die Bischofs- und Metropolitensitze des griechisch-orthodoxen Patriarchats von Antiochia von 1594 bis 1664 nach einigen zeitgenössischen Quellen
Creators: name: Walbiner, Carsten-Michael
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 82 (1998): Oriens christianus, Band 82
Consumer-Preferred Attributes of a Fresh Ground Beef and Turkey Product: A Conjoint Analysis
Creators: name: Schupp, Alvin R.
name: Gillespie, Jeffrey M.
name: Prinyawiwatkul, Witoon
name: O'Neil, Carol E.
name: Schupp, Alvin R.
name: Gillespie, Jeffrey M.
name: Prinyawiwatkul, Witoon
name: O'Neil, Carol E.
Publisher: name: Unknown
Year: 2003
Subjects: Consumer/Household Economics

description: A random sample of 3,400 Louisiana households was surveyed by mail to determine their ratings for a number of product profiles involving a combined fresh ground beef and turkey product. The attributes and levels of the new product included form (fresh, frozen), identity of the packager (retailer, processor), percentage of beef in product (50,70,90), and price of the combined product as a percentage of ground beef (80,90,100). Based on 2,781 observations, the order of importance of the attributes were, in order of declining importance, content, form, price, and packager. Consumer utility was highly sensitive to the content of beef, with a higher content being preferred.
[Letter from Deutsche Botanische Gesellschaft]
Creators: name: Deutsche Botanische Gesellschaft
Publisher: name: Unknown
Year: 1901

description: Do not want to publish the paper: "Bieten die Heydrich'schen Melobesien-Arbeiten eine sichere Grundlage" because it is too long and the limits for controversy are exceeded. Enclosed is a list of Foslie's and Heydrich's publications showing four publications on this topic.
Manipulation and resynthesis of environmental sounds with natural wavelet grains
Creators: name: Hoskinson, Reynald
Publisher: name: University of British Columbia
Year: 2009

description: A technique is presented to facilitate the creation of constantly changing, randomized audio streams from samples of source material. A core motivation is to make it easier to quickly create soundscapes for virtual environments and other scenarios where long streams of audio are used. While mostly in the background, these streams are vital for the creation of mood and realism in these types of applications. Our approach is to extract the component parts of sampled audio signals, and use them to synthesize a continuous audio stream of indeterminate length. An automatic speech recognition algorithm involving wavelets is used to split up the input signal into syllable-like audio segments. The segments are taken from the original sample and are not transformed in any way. For each segment, a table of similarity between it and all the other segments is constructed. The segments are then output in a continuous stream, with the next segment being chosen from among those other segments which best follow from it. In this way, we can construct an infinite number of variations on the original signal with a minimum amount of interaction. An interface for the manipulation and playback of several of these streams is provided to facilitate building complex audio environments.
Market Potential for Locally Produced Meat Products
Creators: name: Maynard, Leigh J.
name: Burdine, Kenneth H.
name: Meyer, A. Lee
name: Maynard, Leigh J.
name: Burdine, Kenneth H.
name: Meyer, A. Lee
Publisher: name: Unknown
Year: 2003
Subjects: Agribusiness

description: The goal of this research was to guide livestock producers in marketing, product design and pricing decisions. Tools included a focus group, a consumer taste-testing and willingness-to-pay survey, and a restaurant survey. Experience attributes of locally produced ground beef were especially competitive, and demand for credence attributes packaged under the "local" label appears consistent with a niche market that could justify verification programs. Restaurants are a potentially receptive outlet for local meats, allowing producers to avoid the barriers to entry in mainstream grocery outlets.
From Neutron Star Binaries to Gamma-ray bursts
Creators: name: Rosswog, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I summarize recent results about how a neutron star binary coalescence can produce short gamma-ray bursts (GRBs). Two possibilities are discussed: the annihilation of neutrino anti-neutrino pairs above the merged remnant and the exponential amplification of magnetic fields in the central object up to values close to equipartition. We find that the neutrino annihilation drives bipolar, relativistic outflows with Lorentz-factors large enough to circumvent the GRB 'compactness problem'. The total energy within these outflows is moderate by GRB-standards ($\sim 10^{48}-10^{49}$ ergs), but the interaction with the baryonic material blown-off by the neutrinos collimates the outflows into opening angles of typically 0.1 sterad, yielding isotropic energies close to $10^{51}$ ergs. We further want to stress the plausibility of the central object resisting the immediate collapse to a black hole. In this case the central object will --similar to a proto-neutron star-- be subject to neutrino driven convection that --together with the rapid, differential rotation-- will lead to a drastic amplification of pre-existing magnetic fields. Within fractions of a second, field strengths comparable to equipartition field strength ($> 10^{17}$ G) will be reached. These will produce large torques that will spin-down the object within about 0.2 s, and would thus naturally explain the duration of short GRBs.
description: Proceedings of the 4th Workshop Gamma-Ray Bursts in the Afterglow Era, Rome,18-22 October 2004
Scoring and Assessment in Medical VR Training Simulators with Dynamic Time Series Classification
Creators: name: Vaughan, Neil
name: Gabrys, Bogdan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: I.2.0

description: This research proposes and evaluates scoring and assessment methods for Virtual Reality (VR) training simulators. VR simulators capture detailed n-dimensional human motion data which is useful for performance analysis. Custom made medical haptic VR training simulators were developed and used to record data from 271 trainees of multiple clinical experience levels. DTW Multivariate Prototyping (DTW-MP) is proposed. VR data was classified as Novice, Intermediate or Expert. Accuracy of algorithms applied for time-series classification were: dynamic time warping 1-nearest neighbor (DTW-1NN) 60%, nearest centroid SoftDTW classification 77.5%, Deep Learning: ResNet 85%, FCN 75%, CNN 72.5% and MCDCNN 28.5%. Expert VR data recordings can be used for guidance of novices. Assessment feedback can help trainees to improve skills and consistency. Motion analysis can identify different techniques used by individuals. Mistakes can be detected dynamically in real-time, raising alarms to prevent injuries.
description: Copyright 2020. This manuscript version is made available under CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
An HI interstellar bubble surrounding WR85 and RCW118
Creators: name: Vasquez, J.
name: Cappa, C.
name: McClure-Griffiths, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the distribution of the interstellar matter in the environs of the Wolf-Rayet star LSS3982 (= WR85, WN6+OB?) linked to the optical ring nebula RCW118. Our study is based on neutral hydrogen 21cm-line data belonging to the Southern Galactic Plane Survey (SGPS). The analysis of the HI data allowed the identification of a neutral hydrogen interstellar bubble related to WR 85 and the 25' diameter ring nebula RCW118. The HI bubble was detected at a systemic velocity of -21.5 km/s, corresponding to a kinematical distance of 2.8+/-1.1 kpc, compatible with the stellar distance. The neutral stucture is about 25' in radius or 21+/-8 pc, and is expanding at 9+/-2 km/s. The associated ionized and neutral masses amount to 3000 Mo. The CO emission distribution depicts a region lacking CO coincident in position and velocity with the HI structure. The 9'.3 diameter inner optical nebula appears to be related to the approaching part of the neutral atomic shell. The HI void and shell are the neutral gas counterparts of the optical bubble and have very probably originated in the action of the strong stellar wind of the central star during the O-type and WR phases on the surrounding interstellar medium. The HI bubble appears to be in the momentun conserving stage.
description: 9 pages, 7 figures, accepted in MNRAS
Asymmetries in Processes of Electron-Positron Annihilation
Creators: name: Arbuzov, Andrej
name: Bondarenko, Serge
name: Kalinovskaya, Lidia
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Processes of electron-positron annihilation into a pair of fermions were considered. Forward-backward and left-right asymmetries were studied, taking into account polarization of initial and final particles. Complete 1-loop electroweak radiative corrections were included. A wide energy range including the $Z$ boson peak and higher energies relevant for future $e^+e^-$ colliders was covered. Sensitivity of observable asymmetries to the electroweak mixing angle and fermion weak coupling was discussed.
description: 18 pages, 10 figures, references are updated
Salvadoran Consumption of Ethnic Foods in the United States
Creators: name: Batres-Marquez, S. Patricia
name: Jensen, Helen H.
name: Brester, Gary W.
name: Batres-Marquez, S. Patricia
name: Jensen, Helen H.
name: Brester, Gary W.
Publisher: name: Unknown
Year: 2003
Subjects: Food Consumption/Nutrition/Food Safety

description: The U.S. Salvadoran population is the largest group of Central and South American people living in the United States today. This study investigates the U.S. market for thirty Salvadoran foods and the demographic characteristics and attitudes of Salvadorans toward these foods. Original data were obtained from a survey conducted through personal interviews of Salvadoran residents of Los Angeles, California and Houston, Texas. Salvadorans surveyed were predominantly low income, without a high school degree, and living in large families. The Salvadoran foods consumed by most respondents were tortilla flour, red beans, loroco (a vegetable), semita (a sweet bread), queso duro (a hard cheese) and horchata (a cold drink). Four groups of households were determined by using cluster analysis. The results indicate that a potential market exists in the United States for most of the Salvadoran products included in this study, and that Salvadorans would like to buy other foods such as fresh fruits and vegetables.