cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Christian Lübke, Arbeit und Wirtschaft im östlichen Mitteleuropa. Die Spezialisierung menschlicher Tätigkeit im Spiegel der hochmittelalterlichen Toponymie in den Herrschaftsgebieten von Piasten, Přemysliden und Arpad
Creators: name: Eichler, Ernst
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1995

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 44 Nr. 3 (1995)
Coherent states for a system of an electron moving in a plane: case of discrete spectrum
Creators: name: Aremua, Isiaka
name: Gouba, Laure
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work, we construct different classes of coherent states related to a quantum system, recently studied in [1], of an electron moving in a plane in uniform external magnetic and electric fields which possesses both discrete and continuous spectra. The eigenfunctions are realized as an orthonormal basis of a suitable Hilbert space appropriate for building the related coherent states. These latter are achieved in the context where we consider both spectra purely discrete obeying the criteria that a family of coherent states must satisfies.
description: 15 pages
Acta Nuntiaturae Polonae. Tomus LVII. Achilles Ratti (1918-1921). Volumen 2 (1 VIII-11XI 1918)
Creators: name: Bues, Almut
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1998

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 47 Nr. 1 (1998)
Investigating diffractive W production in hadron-hadron collisions at high energies
Creators: name: Ducati, M. B. Gay
name: Machado, M. M.
name: Machado, M. V. T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the hard diffractive hadroproduction of bosons W at high energies using Regge factorization and taking into account multiple Pomeron exchange corrections. The ratio of diffractive to non-diffractive W production agrees with the current Tevatron data and a prediction for the LHC is presented.
description: 4 pages, 1 table. To appear in the proceedings of 10th International Workshop on Hadron Physics (X Hadron Physics), Florianopolis, Brazil, 26-31 Mar 2007
Mark Tilse, Transnationalism in the Prussian East. From National Conflict to Synthesis, 1871-1914
Creators: name: Zloch, Stephanie
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
Electron-Phonon Coupling and Electron-Phonon Scattering in SrVO$_3$
Creators: name: Mirjolet, Mathieu
name: Rivadulla, Francisco
name: Marsik, Premysl
name: Borisov, Vladislav
name: Valenti, Roser
name: Fontcuberta, Josep
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Understanding the physics of strongly correlated electronic systems has been a central issue in condensed matter physics for decades. In transition metal oxides, strong correlations characteristic of narrow $d$ bands is at the origin of such remarkable properties as the Mott gap opening, enhanced effective mass, and anomalous vibronic coupling, to mention a few. SrVO$_3$, with V$^{4+}$ in a $3d^1$ electronic configuration is the simplest example of a 3D correlated metallic electronic system. Here, we focus on the observation of a (roughly) quadratic temperature dependence of the inverse electron mobility of this seemingly simple system, which is an intriguing property shared by other metallic oxides. The systematic analysis of electronic transport in SrVO$_3$ thin films discloses the limitations of the simplest picture of e-e correlations in a Fermi liquid; instead, we show that the quasi-2D topology of the Fermi surface and a strong electron-phonon coupling, contributing to dress carriers with a phonon cloud, play a pivotal role on the reported electron spectroscopic, optical, thermodynamic and transport data. The picture that emerges is not restricted to SrVO$_3$ but can be shared with other $3d$ and $4d$ metallic oxides.
Nationales Selbstverständnis und politische Ordnung. Abgrenzungen und Zusammenleben in Ost-Mitteleuropa
Creators: name: Kessler, Wolfgang
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1995

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 44 Nr. 3 (1995)
Brandenburgisches Namenbuch. Teil 8. Die Ortsnamen des Landes Lebus
Creators: name: Bily, Inge
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1997

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 46 Nr. 1 (1997)
A Fast Algorithm for Scanning Transmission Electron Microscopy (STEM) Imaging and 4D-STEM Diffraction Simulations
Creators: name: Pelz, Philipp M
name: Rakowski, Alexander
name: DaCosta, Luis Rangel
name: Savitzky, Benjamin H
name: Scott, Mary C
name: Ophus, Colin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Scanning transmission electron microscopy (STEM) is an extremely versatile method for studying materials on the atomic scale. Many STEM experiments are supported or validated with electron scattering simulations. However, using the conventional multislice algorithm to perform these simulations can require extremely large calculation times, particularly for experiments with millions of probe positions as each probe position must be simulated independently. Recently, the PRISM algorithm was developed to reduce calculation times for large STEM simulations. Here, we introduce a new method for STEM simulation: partitioning of the STEM probe into "beamlets," given by a natural neighbor interpolation of the parent beams. This idea is compatible with PRISM simulations and can lead to even larger improvements in simulation time, as well requiring significantly less computer RAM. We have performed various simulations to demonstrate the advantages and disadvantages of partitioned PRISM STEM simulations. We find that this new algorithm is particularly useful for 4D-STEM simulations of large fields of view. We also provide a reference implementation of the multislice, PRISM and partitioned PRISM algorithms.
description: 15 pages, 7 figures
Joachim Zdrenka, Polityka zagraniczna książąt szczecińskich w latach 1295-1411
Creators: name: Benl, Rudolf
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1996

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 45 Nr. 4 (1996)
Anomalous Relativistic Tunneling and Exotic Point Interactions
Creators: name: Hejcik, Pavel
name: Cheon, Taksu
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We examine one-dimensional quantum scattering of a Dirac particle off relativistic potential barriers. With proper considerations of Dirac sea, existence of anomalous tunneling at zero incident-energy is revealed for a particular type of relativistic potential having same magnitudes and opposite signs for scalar and vector components. It is also shown that this leads to an exotic short range limit of the potentials.
description: 5 pages TeX in EPL format, with 4 PDF figures. Revision with discussion on unitarity for all energies
Entanglement and Timing-Based Mechanisms in the Coherent Control of Scattering Processes
Creators: name: Spanner, Michael
name: Brumer, Paul
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The coherent control of scattering processes is considered, with electron impact dissociation of H$_2^+$ used as an example. The physical mechanism underlying coherently controlled stationary state scattering is exposed by analyzing a control scenario that relies on previously established entanglement requirements between the scattering partners. Specifically, initial state entanglement assures that all collisions in the scattering volume yield the desirable scattering configuration. Scattering is controlled by preparing the particular internal state wave function that leads to the favored collisional configuration in the collision volume. This insight allows coherent control to be extended to the case of time-dependent scattering. Specifically, we identify reactive scattering scenarios using incident wave packets of translational motion where coherent control is operational and initial state entanglement is unnecessary. Both the stationary and time-dependent scenarios incorporate extended coherence features, making them physically distinct. From a theoretical point of view, this work represents a large step forward in the qualitative understanding of coherently controlled reactive scattering. From an experimental viewpoint, it offers an alternative to entanglement-based control schemes. However, both methods present significant challenges to existing experimental technologies.
Strange anarchy : the philosophical anarchism of Robert Paul Wolff
Creators: name: Baugh, Graham James
Publisher: name: University of British Columbia
Year: 2010

description: This thesis presents a reconstruction and critique of Robert Paul Wolff's defence of anarchism. In Part One, the underlying moral theory upon which this defence is based is analyzed. The defence of anarchism is then reconstructed on the basis of this moral theory. It is argued that all claims to legitimate political authority are apparently illegitimate because such claims conflict with an overriding obligation of rational agents to be autonomous. Utilitarian and social contract solutions to this conflict are discussed in relation to the same moral theory. It is argued that some forms of authority are compatible with individual autonomy but that the state, due to its inherently coercive nature, is not. Wolff's anarchist alternative to the state is then discussed as the form of society in which people enjoy the fullest autonomy. In Part Two of this thesis Wolff's arguments for anarchism, his underlying moral theory and his instrumental view of reason are criticized. It is argued that Wolff's argument fails as a defence of anarchism and the anarchist status of Wolff's argument is itself put into question. Wolff's position is held to be a form of moral and political scepticism distinct from the political theory of anarchism. Wolff's moral theory is criticized for failing to provide any basis for meaningful moral discourse or for the rational resolution of moral conflict. Wolff's concepts of autonomy, obligation and moral contractarianism are held to be conceptually incoherent. Wolff's claim that reason functions merely as an instrument for the achievement of nonrational goals is rejected. It is argued that Wolff's instrumental view of reason itself expresses certain moral values typical of modern society. The thesis concludes with a short section outlining some alternative approaches to anarchism which seem more plausible and coherent than the approach taken by Wolff.
High Frequency Dynamics and Third Cumulant of Quantum Noise
Creators: name: Gabelli, J.
name: Reulet, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The existence of the third cumulant $S_{3}$ of voltage fluctuations has demonstrated the non-Gaussian aspect of shot noise in electronic transport. Until now, measurements have been performed at low frequency, \textit{i.e.} in the classical regime $\hbar ω< eV, k_BT$ where voltage fluctuations arise from charge transfer process. We report here the first measurement of $S_3$ at high frequency, in the quantum regime $\hbar ω> eV, k_BT$. In this regime, experiment cannot be seen as a charge counting statistics problem anymore. It raises central questions of the statistics of quantum noise: 1) the electromagnetic environment of the sample has been proven to strongly influence the measurement, through the possible modulation of the noise of the sample. What happens to this mechanism in the quantum regime? 2) For $\hbar ω> eV$, the noise is due to zero point fluctuations and keeps its equilibrium value: $S_2= G \hbar ω$ with $G$ the conductance of the sample. Therefore, $S_2$ is independent of the bias voltage and no photon is emitted by the conductor. Is it possible, as suggested by some theories, that $S_3 \neq 0$ in this regime? With regard to these questions, we give theoretical and experimental answers to the environmental effects showing that they involve dynamics of the quantum noise. Using these results, we investigate the question of the third cumulant of quantum noise in the a tunnel junction.
Enrichment of meat products with dietary fibers: a review
Creators: name: Zinina, O.
name: Merenkova, S.
name: Tazeddinova, D.
name: Rebezov, M.
name: Stuart, M.
name: Okuskhanova, E.
name: Yessimbekov, Zh.
name: Baryshnikova, N.
Publisher: name: Agronomy Research
Year: 2019
Subjects: dietary fiber
meat product
health
functional value
article

description: In recent years, much attention has been paid to the development of food products with properties that can promote well-being and prevent disease. Tested strategies to improve the functional value of meat products through the introduction of dietary fiber are reviewed here. Based on the literature reviewed, the addition of dietary fiber in meat products contributes to the fabrication of products which enhance physiological functions. Furthermore, fibers can be used to improve the quality and yield of meat products.
Interfacial Spin-Orbit Torques and Magnetic Anisotropy in WSe$_{2}$/Permalloy Bilayers
Creators: name: Hidding, Jan
name: Tirion, Sytze H.
name: Momand, Jamo
name: Kaverzin, Alexey
name: Mostovoy, Maxim
name: van Wees, Bart J.
name: Kooi, Bart J.
name: Guimarães, Marcos H. D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Transition metal dichalcogenides (TMDs) are promising materials for efficient generation of current-induced spin-orbit torques on an adjacent ferromagnetic layer. Numerous effects, both interfacial and bulk, have been put forward to explain the different torques previously observed. Thus far, however, there is no clear consensus on the microscopic origin underlying the spin-orbit torques observed in these TMD/ferromagnet bilayers. To shine light on the microscopic mechanisms at play, here we perform thickness dependent spin-orbit torque measurements on the semiconducting WSe$_{2}$/permalloy bilayer with various WSe$_{2}$ layer thickness, down to the monolayer limit. We observe a large out-of-plane field-like torque with spin-torque conductivities up to $1\times10^4 ({\hbar}/2e) (Ωm)^{-1}$. For some devices, we also observe a smaller in-plane antidamping-like torque, with spin-torque conductivities up to $4\times10^{3} ({\hbar}/2e) (Ωm)^{-1}$, comparable to other TMD-based systems. Both torques show no clear dependence on the WSe$_{2}$ thickness, as expected for a Rashba system. Unexpectedly, we observe a strong in-plane magnetic anisotropy - up to about $6.6\times10^{4} erg/cm^{3}$ - induced in permalloy by the underlying hexagonal WSe$_{2}$ crystal. Using scanning transmission electron microscopy, we confirm that the easy axis of the magnetic anisotropy is aligned to the armchair direction of the WSe$_{2}$. Our results indicate a strong interplay between the ferromagnet and TMD, and unveil the nature of the spin-orbit torques in TMD-based devices. These findings open new avenues for possible methods for optimizing the torques and the interaction with interfaced magnets, important for future non-volatile magnetic devices for data processing and storage.
description: 19 pages, 3 figures
Population-based identification of Hα-excess sources in the Gaia DR2 and IPHAS catalogues
Creators: name: Fratta, M.
name: Scaringi, S.
name: Drew, J. E.
name: Monguio, M.
name: Knigge, C.
name: Maccarone, T. J.
name: Court, J. M. C.
name: Ilkiewicz, K. A.
name: Pala, A. F.
name: Gandhi, P.
name: Gaensicke, B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a catalogue of point-like Hα-excess sources in the Northern Galactic Plane. Our catalogue is created using a new technique that leverages astrometric and photomeric information from Gaia to select Hα-bright outliers in the INT Photometric Hα Survey of the Northern Galactic Plane (IPHAS), across the colour-absolute magnitude diagram. To mitigate the selection biases due to stellar population mixing and to extinction, the investigated objects are first partitioned with respect to their positions in the Gaia colour-absolute magnitude space, and in the Galactic coordinates space, respectively. The selection is then performed on both partition types independently. Two significance parameters are assigned to each target, one for each partition type. These represent a quantitative degree of confidence that the given source is a reliable Hα-excess candidate, with reference to the other objects in the corresponding partition. Our catalogue provides two flags for each source, both indicating the significance level of the Hα-excess. By analysing their intensity in the Hα narrow band, 28,496 objects out of 7,474,835 are identified as Hα-excess candidates with a significance higher than 3. The completeness fraction of the Hα outliers selection is between 3% and 5%. The suggested 5σ conservative cut yields a purity fraction of 81.9%.
description: 20 pages, 23 figures
Guide to Boundary Value Problems for Dirac-Type Operators
Creators: name: Baer, Christian
name: Ballmann, Werner
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 35J56, 58J05, 58J20, 58J32

description: We present an introduction to boundary value problems for Dirac-type operators on complete Riemannian manifolds with compact boundary. We introduce a very general class of boundary conditions which contains local elliptic boundary conditions in the sense of Lopatinskij and Shapiro as well as the Atiyah-Patodi-Singer boundary conditions. We discuss boundary regularity of solutions and also spectral and index theory. The emphasis is on providing the reader with a working knowledge.
description: 30 pages, 2 figures, identical with published version up to layout
Rola i miejsce Polski w Europie 1914—1957. W 75 rocznicę odzyskania niepodległości
Creators: name: Obermeier, Jan
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1998

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 47 Nr. 1 (1998)
Characterization of Er$^{3+}$:YVO$_{4}$ for microwave to optical transduction
Creators: name: Xie, Tian
name: Rochman, Jake
name: Bartholomew, John G.
name: Ruskuc, Andrei
name: Kindem, Jonathan M.
name: Craiciu, Ioana
name: Thiel, Charles
name: Cone, Rufus
name: Faraon, Andrei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Quantum transduction between microwave and optical frequencies is important for connecting superconducting quantum platforms in a quantum network. Ensembles of rare-earth ions are promising candidates to achieve this conversion due to their collective coherent properties at microwave and optical frequencies. Erbium ions are of particular interest because of their telecom wavelength optical transitions that are compatible with fiber communication networks. Here, we report the optical and electron spin properties of erbium doped yttrium orthovanadate (Er$^{3+}$:YVO$_{4}$), including high-resolution optical spectroscopy, electron paramagnetic resonance studies and an initial demonstration of microwave to optical conversion of classical fields. The highly absorptive optical transitions and narrow ensemble linewidths make Er$^{3+}$:YVO$_{4}$ promising for magneto-optic quantum transduction.
Differentiable Rigidity under Ricci curvature lower bound
Creators: name: Bessières, Laurent
name: Besson, Gérard
name: Courtois, Gilles
name: Gallot, Sylvain
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: In this article we prove a differentiable rigidity result. Let $(Y, g)$ and $(X, g_0)$ be two closed $n$-dimensional Riemannian manifolds ($n\geqslant 3$) and $f:Y\to X$ be a continuous map of degree $1$. We furthermore assume that the metric $g_0$ is real hyperbolic and denote by $d$ the diameter of $(X,g_0)$. We show that there exists a number $\varepsilon:=\varepsilon (n, d)>0$ such that if the Ricci curvature of the metric $g$ is bounded below by $-n(n-1)$ and its volume satisfies $\vol_g (Y)\leqslant (1+\varepsilon) \vol_{g_0} (X)$ then the manifolds are diffeomorphic. The proof relies on Cheeger-Colding's theory of limits of Riemannian manifolds under lower Ricci curvature bound.
description: 33 pages, 1 dessin
Ewa Szymani (Hrsg.), Deutsche und Polen in der Aufklärung und in der Romantik. Verweigerung eines Transfers?
Creators: name: Wojtczak, Maria
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
Hanna Popowska-Taborska, Wczesne dzieje Słowian w świetle ich języka
Creators: name: Udolph, Jürgen
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1996

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 45 Nr. 4 (1996)
Canadian Gallup Poll # 525-1
Creators: name: Inc., The Canadian Gallup Poll
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Federal elections vote intent(1); past federal elections vote(1); life in Canada(5); Prime Minister and the opposition leader job performance(2); best choice for Prime Minister(1); university education(2); free trade with US(1); bilingualism(1); Canada's Senate(2); Canada under Progressive Conservative government(10). Note: Standard demographics(17).
On the spectrum of infinite dimensional random products of compact operators
Creators: name: Bessa, Mario
name: Carvalho, Maria
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 37H15, 37D08, 47B80

description: We consider an infinite dimensional separable Hilbert space and its family of compact integrable cocycles over a dynamical system f. Assuming that f acts in a compact Hausdorff space X and preserves a Borel regular ergodic measure which is positive on non-empty open sets, we conclude that there is a residual subset of cocycles within which, for almost every x, either the Oseledets-Ruelle's decomposition along the orbit of x is dominated or has a trivial spectrum.
description: 20 pages
Motivation and Authenticity: Creating Meaning in the Language Classroom
Creators: name: Chapman, Richard
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2006

description: La metodologia comunicativa per insegnare le lingue è oramai considerata efficace e viene usata dalla maggioranza dei docenti della lingua inglese. Però possiamo chiederci se è davvero valido come approccio: la lingua insegnata tende ad essere improntata alla praticità. Così la consideriamo impoverita perché mancante di un significato vero: questo comporta una scarsa motivazione da parte dello studente e un contenuto delle lezioni che viene facilmente dimenticato. Viene proposta una soluzione: l'utilizzo della letteratura, non per conoscere essa stessa, ma per insegnare la lingua inglese. La lingua imparata attraverso la letteratura, infatti, è più autentica e stimolante grazie al significato più forte che offre e all'esperienza più profonda che crea. Per lo più, la letteratura è vista come uno dei pochi temi che si trova 'naturalmente' nell'ambiente della lezione. È vero, però, che ha più 'significato' questo tipo di lezione? Un'analisi teorica semplice del senso del linguaggio, con una breve descrizione che esplicita i concetti, ci guida verso la conclusione che testi letterari dei tipi più disparati potrebbero rendere la lezione di lingua più efficace perché più vicini a un'espressione vera di una lingua quando viene usata per comunicare.
description: Annali Online  Lettere - Ferrara, I 1 (2006)
Cognitive applicability. The Natural History of the Unicorn from Ctesias to TV News
Creators: name: Li Causi, Pietro
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2013

description: Le storie naturali degli antichi non possono essere considerate, in senso stretto, testi tecnici. In esse, solo raramente si presenta il problema del passaggio dalla regola o dall’istruzione scritte alla messa in pratica nell’ambito della realtà extra-linguistica. Tuttavia anche per questa tipologia di opere si può parlare di un problema di “applicabilità” che potremmo definire “cognitiva”. Questi testi in genere utilizzano una serie di strategie del discorso sostitutive delle immagini e delle illustrazioni (similitudini, analogie) che servono a rendere visualizzabili una serie di esseri “invisibili” (o talvolta inesistenti) come quelli che si trovano, ad esempio, nelle eschatiai.  Si tratta, appunto, di capire se – e quando, e come – queste descrizioni sono “applicabili”. Un esploratore che si trovi per le mani, ad esempio, i brani di Plinio che descrivono il camelopardo o il corocotta, riuscirebbe a riconoscerli se dovesse, per caso, avvistarli? Esemplare è in tal senso la vicenda dell'asino indiano unicorno. Dopo essere stato menzionato da Erodoto (IV 191 e VII 86), l'animale viene descritto per la prima volta da Ctesia (FGrHist 688 F. 45) come un ferocissimo essere a forma equina con un solo corno policromo sulla fronte. Il tipo cognitivo di quello che era verosimilmente un animale fantastico che il medico di Cnido aveva visto raffigurato alla corte del re di Persia finirà tuttavia, nel corso della storia dell’Occidente antico e moderno, per subire diverse variazioni e, di conseguenza, per essere “applicato” a referenti extralinguistici – reali e immaginari – di varia foggia e natura.
description: Annali Online  Lettere - Ferrara, VII 2 (2012)
Wojciech Wrzesinski, Prusy Wschodnie w polskiej myśli politycznej w latach 1864—1945
Creators: name: Wörster, Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1998

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 47 Nr. 1 (1998)
Posterior Consistency for Gaussian Process Approximations of Bayesian Posterior Distributions
Creators: name: Stuart, Andrew M.
name: Teckentrup, Aretha L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We study the use of Gaussian process emulators to approximate the parameter-to-observation map or the negative log-likelihood in Bayesian inverse problems. We prove error bounds on the Hellinger distance between the true posterior distribution and various approximations based on the Gaussian process emulator. Our analysis includes approximations based on the mean of the predictive process, as well as approximations based on the full Gaussian process emulator. Our results show that the Hellinger distance between the true posterior and its approximations can be bounded by moments of the error in the emulator. Numerical results confirm our theoretical findings.
description: In the latest version, we have added Assumption A. This is required in the proofs of Corollaries 4.3, 4.10 and 4.12, and we would like to thank Holger Wendland for alerting us of this omission. The latest version further corrects the definition of X at the beginning of section 2
Coherent Control and Entanglement in the Attosecond Electron Recollision Dissociation of D2+
Creators: name: Spanner, Michael
name: Brumer, Paul
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We examine the attosecond electron recollision dissociation of D2+ recently demonstrated experimentally [H. Niikura et al., Nature (London) 421, 826 (2003)] from a coherent control perspective. In this process, a strong laser field incident on D2 ionizes an electron, accelerates the electron in the laser field to eV energies, and then drives the electron to recollide with the parent ion, causing D2+ dissociation. A number of results are demonstrated. First, a full dimensional Strong Field Approximation (SFA) model is constructed and shown to be in agreement with the original experiment. This is then used to rigorously demonstrate that the experiment is an example of coherent pump-dump control. Second, extensions to bichromatic coherent control are proposed by considering dissociative recollision of molecules prepared in a coherent superposition of vibrational states. Third, by comparing the results to similar scenarios involving field-free attosecond scattering of independently prepared D2+ and electron wave packets, recollision dissociation is shown to provide an example of wave-packet coherent control of reactive scattering. Fourth, this analysis makes clear that it is the temporal correlations between the continuum electron and D2+ wave packet, and not entanglement, that are crucial for the sub-femtosecond probing resolution demonstrated in the experiment. This result clarifies some misconceptions regarding the importance of entanglement in the recollision probing of D2+. Finally, signatures of entanglement between the recollision electron and the atomic fragments, detectable via coincidence measurements, are identified.
Paul Goukowsky (éd., trans.), Appien: Histoire romaine, Tome V. Livre IX, Le Livre Illyrien. Fragments du Livre Macédonien, Collection des universités de France, Paris, Les Belles Lettres 2011, pp. 209, ISBN 9782251005683
Creators: name: Livadiotti, Umberto
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2013

description: Annali Online  Lettere - Ferrara, VII 2 (2012)
MOND fiducial specific angular momentum of disc galaxies
Creators: name: Milgrom, Mordehai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is pointed out that MOND defines a fiducial specific angular momentum (SAM) for a galaxy of total (baryonic) mass $\mathcal{M}$: $j_M(\mathcal{M})\equiv\mathcal{M}^{3/4}(G^3/a_0)^{1/4}\approx 383(\mathcal{M}/10^{10}M_\odot)^{3/4}{\rm kpc~km/s}$. It plays important roles in disc-galaxy dynamics and evolution: It underlies scaling relations in virialized galaxies that involve their angular-momentum. I show that the disc SAM should be $j_D\approx[\langle r\rangle/r_M(\mathcal{M})]j_M(\mathcal{M})=[Σ_M/\langle Σ\rangle]^{1/2}j_M(\mathcal{M})$, with $\langle r\rangle$ the mean radius of the disc, $\langle Σ\rangle=\mathcal{M}/2π\langle r\rangle^2$ some mean surface density of the galaxy, $r_M=(\mathcal{M} G/a_0)^{1/2}$ is the MOND radius of the galaxy, and $Σ_M=a_0/2πG$ is the (universal) MOND surface density. So, e.g., for a fixed $\langle Σ\rangle$, $j_D\propto \mathcal{M}^{3/4}$, while for a fixed $\langle r\rangle$, $j_D\propto \mathcal{M}^{1/4}$. Furthermore, $j_M(\mathcal{M})$ is a reference predictor of the type of galaxy a protogalaxy will settle into, if it evolves in isolation: A protogalaxy of mass $\mathcal{M}$, and SAM $j\gg j_M(\mathcal{M})$ should settle into a low-surface-density disc -- with mean acceleration $\langle a\rangle/a_0\approx j_M/j\ll 1$. While a protogalaxy with $j\lesssim j_M(\mathcal{M})$ should end up with a disc of mass $\mathcal{M}_D\approx j\mathcal{M}/j_M(\mathcal{M})$, having a SAM $j_D\approx j_M(\mathcal{M})$, which is tantamount to $\langle a\rangle\approx a_0$ (i.e., at the `Freeman limit'); it should also develop a low-SAM bulge, taking up the rest of the mass $\mathcal{M}_B\approx\mathcal{M}-\mathcal{M}_D$.
description: 6 pages, 2 figure. Added a detailed discussion of the recent analysis of j-M correlations in Ref. 25, which lends itself to a much clearer comparison with the predictions of MOND. Version to appear in Phys. Rev. D
Sigismund von Luxemburg. Kaiser und König in Mitteleuropa 1387—1437. Beiträge zur Herrschaft Kaiser Sigismunds und der europäischen Geschichte um 1400
Creators: name: Bahlcke, Joachim
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1997

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 46 Nr. 1 (1997)
Hawking Radiation in the Ghost Condensate is Non-Thermal
Creators: name: Feldstein, Brian
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a Schwarzschild black hole immersed in a ghost condensate background. It is shown that the Hawking radiation in the quanta of small perturbations around this background is highly suppressed- in particular it is not given by a thermal spectrum. This result is in accord with observations that such black holes can be used to violate the generalized second law of thermodynamics, and thus cannot have a standard entropy/area relation.
description: 26 pages; v2: reference added, missing Christoffel symbols included in appendix, minor typos corrected in equations (39) and (50)
A microstructural analysis of 2D halide perovskites: Stability and functionality
Creators: name: Bhattacharya, Susmita
name: Chandra, Goutam Kumar
name: Predeep, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Recent observations indicated that the photoelectric conversion properties of perovskite materials are intimately related to the presence of superlattice structures and other unusual nanoscale features in them. The low dimensional or mixed dimensional halide perovskite family are found to be more efficient materials for device application compared to 3-dimensional halide perovskites. The emergence of perovskite solar cell has revolutionized the solar cell industry because of their flexible architecture and rapidly increased efficiency. Tuning the dielectric constant, charge separation are the main objective in designing a photovoltaic device that can be explored using 2-dimensional perovskite family. Thus, revisiting the fundamental properties of perovskite crystals could reveal further possibilities for recognizing these improvements towards device functionality. In this context, this review discusses the material properties of 2-dimensional halide perovskite and related optoelectronic devices aiming particularly for solar cell application.
description: Review article, 6 figures, under review in Frontiers in Nanotechnology
Gauge-gravity duality -- Super Yang Mills Quantum Mechanics
Creators: name: Catterall, Simon
name: Wiseman, Toby
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe the conjectured holographic duality between Yang-Mills quantum mechanics and type IIa string theory. This duality allows us to use lattice Monte Carlo simulations to probe the physics of the gravitational theory - for example, at low energies it provides a computation of black hole entropy in terms of a sum over microstates of the dual gauge theory. Numerical results are presented of the 4 supercharge theory at finite temperature
description: 7 pages, 6 figures, Talk at lattice 2007
Anna Kochanowska-Nieborak, Das Polenbild in Meyers Konversationslexika des „langen“ 19. Jahrhunderts
Creators: name: Myschor, Christian
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)
Il sonetto 99 del Canzoniere
Creators: name: Cherchi, Paolo
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2012

description: The analysis of sonnet 99 of the Canzoniere widens into a study  of the notion of hope in Petrarch's work. This theme of hope appears in  the first as well as in the last composition, and it permeates the  entire work representing one of the major clues for interpreting its  "story". Hope undergoes constant change, starting as "speranza vana" or  hearthly hope and ending by becoming hope in the Highest Good,  coinciding with Faith and Charity. In the context of this tormenting  history the meaning and the function of sonnet 99 become clear, and  sheds light on that great rhetorical work of self-persuasion narrated in  the Canzoniere: an existential quest that transforms earthly hopes into the desire of the Supreme Goodness.
description: Annali Online  Lettere - Ferrara, I 1 (2006)
Radiation- and Phonon-Bottleneck-Induced Tunneling in the Fe8 Single-Molecule Magnet
Creators: name: Bal, M.
name: Friedman, Jonathan R.
name: Chen, W.
name: Tuominen, M. T.
name: Beedle, C. C.
name: Rumberger, E. M.
name: Hendrickson, D. N.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We measure magnetization changes in a single crystal of the single-molecule magnet Fe8 when exposed to intense, short (<20 $μ$s) pulses of microwave radiation resonant with the m = 10 to 9 transition. We find that radiation induces a phonon bottleneck in the system with a time scale of ~5 $μ$s. The phonon bottleneck, in turn, drives the spin dynamics, allowing observation of thermally assisted resonant tunneling between spin states at the 100-ns time scale. Detailed numerical simulations quantitatively reproduce the data and yield a spin-phonon relaxation time of T1 ~ 40 ns.
description: 6 RevTeX pages, including 4 EPS figures, version accepted for publication
Echo Spectroscopy of Atomic Dynamics in a Gaussian Trap via Phase Imprints
Creators: name: Oblak, Daniel
name: Appel, Juergen
name: Windpassinger, Patrick
name: Hoff, Ulrich Busk
name: Kjaergaard, Niels
name: Polzik, Eugene S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on the collapse and revival of Ramsey fringe visibility when a spatially dependent phase is imprinted in the coherences of a trapped ensemble of two-level atoms. The phase is imprinted via the light shift from a Gaussian laser beam which couples the dynamics of internal and external degrees of freedom for the atoms in an echo spectroscopy sequence. The observed revivals are directly linked to the oscillatory motion of atoms in the trap. An understanding of the effect is important for quantum state engineering of trapped atoms.
The conductivity measure for the Anderson model
Creators: name: Klein, Abel
name: Müller, Peter
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B44 (Primary), 47B80, 60H25 (Secondary)

description: We study the ac-conductivity in linear response theory for the Anderson tight-binding model. We define the electrical ac-conductivity and calculate the linear-response current at zero temperature for arbitrary Fermi energy. In particular, the Fermi energy may lie in a spectral region where extended states are believed to exist.
Kazimierz Śmigiel, Florian Stablewski. Arcybiskup gnieźnieński i poznański (1841—190
Creators: name: Blanke, Richard
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1998

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 47 Nr. 1 (1998)
f(R) Theories Of Gravity
Creators: name: Sotiriou, Thomas P.
name: Faraoni, Valerio
Publisher: name: arXiv
Year: 2008
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: Modified gravity theories have received increased attention lately due to combined motivation coming from high-energy physics, cosmology and astrophysics. Among numerous alternatives to Einstein's theory of gravity, theories which include higher order curvature invariants, and specifically the particular class of f(R) theories, have a long history. In the last five years there has been a new stimulus for their study, leading to a number of interesting results. We review here f(R) theories of gravity in an attempt to comprehensively present their most important aspects and cover the largest possible portion of the relevant literature. All known formalisms are presented -- metric, Palatini and metric-affine -- and the following topics are discussed: motivation; actions, field equations and theoretical aspects; equivalence with other theories; cosmological aspects and constraints; viability criteria; astrophysical applications.
description: 47 pages, review commissioned by Rev. Mod. Phys; v2: minor changes to address comments received, references added; v3: changes in the Cauchy problem section, minor edits, some typos corrected, version accepted in Rev. Mod. Phys; v4: minor corrections to match published version
The effect of oxygen ions on the stability and polarization of Kinetic Alfvén Waves in the Magnetosphere
Creators: name: Moya, Pablo S.
name: Gallo-Méndez, Iván
name: Zenteno-Quinteros, Bea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: One of the most striking properties of Kinetic Alfvén Waves (KAW) is that, unlike the also Alfvénic Electromagnetic Ion Cyclotron (EMIC) waves, these waves are right-hand polarized in the plasma frame. In particular, this signature property is key for the identification of KAW from in situ measurements of plasma waves. From the theoretical point of view, both the dispersion relation and the polarization of KAW has been mostly studied in proton-electron plasmas. However, most astrophysical and space plasmas are multi-species, and therefore in these systems the dispersion properties of the KAW may not depend only on the macroscopic parameters of proton and electron distributions, but also on the parameters of heavier ions. Here, using Vlasov linear theory we study the dispersion properties of Alfvénic modes in multi-species plasmas composed by electrons, protons, and O$^+$ ions, with macroscopic plasma parameters relevant to the inner magnetosphere. In consistency with recent observations, our numerical results show that the presence of O$^+$ ions allows the existence of KAW in a wider wave-number range and at smaller wave-normal angles compared to the electron-proton case, but at the same time isotropic O$^+$ ions tend to reduce (or even inhibiting) the growth rates of unstable KAW triggered by anisotropic protons. These results suggest that magnetospheric ions may play an important role on the energy transfer from large macroscopic scales to sub-ionic and electronic scales, especially during intense geomagnetic storms in which O$^+$ ions can dominate the plasma composition in the inner magnetosphere.
description: 16 pages, 4 figures, in press
Lattices with exponentially large kissing numbers
Creators: name: Vlăduţ, Serge
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 11H31, 11H71, 14G15, 52C17

description: We construct a sequence of lattices $\{L_{n_i}\subset \mathbb R^{n_i}\}$ for $n_i\longrightarrow\infty$, with exponentially large kissing numbers, namely, $\log_2τ(L_{n_i})> 0.0338\cdot n_i -o(n_i)$. We also show that the maximum lattice kissing number $ τ^l_{n}$ in $n$ dimensions verifies $\log_2τ^l_{n}> 0.0219\cdot n -o(n)$.
description: Unfortunately, the main result of the paper should be considered as not proven. Namely, the constructions D and E applied to the codes with many light vectors give some lattices, but there is no proof that their kissing numbers will be exponential. The initial impression that those lattices retain all 0-1 short vectors from the least code $C_0$ in the tower, is definitely false
Sex-related differences in mathematics achievement scores in Grade 4 and Grade 8 in Kerala, India
Creators: name: Nair, Leila Karunakaran
Publisher: name: University of British Columbia
Year: 2010

description: The purpose of this study was to investigate whether sex-related differences in mathematics achievement scores existed in a sample from the under-developed world; and if so, what bearing the findings had on the current "nature" and "nurture" positions on such differences. A total of 1377 students at two grade levels, Grade 4 and Grade 8, drawn from three districts in the state of Kerala, India, were tested. Items for the instruments of testing were drawn from the British Columbia Learning Assessment Study in Mathematics of 1981 for the Grade 4 level and from the Second International Mathematics Study conducted in British Columbia in 1982 for the Grade 8 level. The results showed that sex-related differences in mathematics achievement scores existed at the two grade levels in varying degrees depending on the urban-rural location of the sample, and not consistently in favour of the same sex. In the urban sample, boys outperformed girls by 7% at the Grade 4 level and girls outperformed boys by 3% at the Grade 8 level. In the rural sample, girls outperformed boys by 2% at the Grade 4 level and boys outperformed girls by 8% at the Grade 8 level. Based on the results of this study, it is hypothesized that if the "nature-position" of genetic male superiority in mathematical ability is the reason for the instances of superior male scores in this study, data at the same grade levels that show marginally superior female achievement scores in a different locale indicate that "nurture" of some sort can likely 'remedy any deficiencies in mathematical ability that may be imposed by "nature".
Nationalitäten und Identitäten in Ostmitteleuropa. Festschrift aus Anlaß des 70. Geburtstags von Richard Georg Plaschka
Creators: name: Hoensch, Jörg K.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1997

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 46 Nr. 1 (1997)
The energy-momentum of plane-fronted gravitational waves in the teleparallel equivalent of GR
Creators: name: Maluf, J. W.
name: Ulhoa, S. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We show that in the framework of the teleparallel equivalent of general relativity the gravitational energy-momentum of plane-fronted gravitational waves contained in an arbitrary three-dimensional volume V may be easily obtained and is non-negative in the frame of static observers.
description: 11 pages, no figures. This submission comprises the published version (Phys. Rev. D 78, 047502 (2008)) and takes into account the Erratum (Phys. Rev. D 78, 069901(E) (2008)). One of the conclusions of the paper is changed. The energy-momentum of plane-fronted gravitational waves contained in an arbitrary space volume V is nonpositive
Norbert Angermann u.a. (Hrsg.), Geisteswissenschaften und Publizistik im Baltikum des 19. und frühen 20. Jahrhunderts
Creators: name: Von Pistohlkors, Gert
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2013

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 62 Nr. 4 (2013)