cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimal networks for Quantum Metrology: semidefinite programs and product rules
Creators: name: Chiribella, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We investigate the optimal estimation of a quantum process that can possibly consist of multiple time steps. The estimation is implemented by a quantum network that interacts with the process by sending an input and processing the output at each time step. We formulate the search of the optimal network as a semidefinite program and use duality theory to give an alternative expression for the maximum payoff achieved by estimation. Combining this formulation with a technique devised by Mittal and Szegedy we prove a general product rule for the joint estimation of independent processes, stating that the optimal joint estimation can achieved by estimating each process independently, whenever the figure of merit is of a product form. We illustrate the result in several examples and exhibit counterexamples showing that the optimal joint network may not be the product of the optimal individual networks if the processes are not independent or if the figure of merit is not of the product form. In particular, we show that entanglement can reduce by a factor K the variance in the estimation of the sum of K independent phase shifts.
description: 19 pages, no figures, published version
How dreams help us to accept death: A case study
Creators: name: Akbari, Moslem
Publisher: name: International Journal of Dream Research
Year: 2019

description: The patient was referred to the psychologist due to recurring dreams related to threats and death. A few sessions after existential psychotherapy, the patient had seen a dream full of symbols. And this dream was very strange and meaningful to the patient, and she wanted to interpret it. Usually, when the dream is repeated over and over, it indicates that the unconscious mind of the person intends to transmit a message that the patient is not willing to accept or face with that specific issue in the real world, or rather, the resistance causes the unconscious mind to use the symbol to convey its message. The interpretation of the dream taken in this article is most similar to that of Professor Freud’s approach, although it has religious and cultural implications related to the patient's background. In that dream, probably the most important unconscious mind message for the patient was that She could not run away from death and if the patient did not accept death, he would have to endure more stress. Only by accepting that death may occur at any given moment, these recurring dreams would leave the patient. In Existentialist Therapy School, one of the essential things to be dealt with is death. The dream shows how the patient is slowly approaching death after several sessions of psychotherapy, and the unconscious mind, in a very indirect and symbolic way, tries to help the patient to accept death and reduce the patient's psychosocial pressure.
description: International Journal of Dream Research, Vol 12, No 2 (October 2019)
On the Cone conjecture for Calabi-Yau manifolds with Picard number two
Creators: name: Lazić, Vladimir
name: Peternell, Thomas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J32, 14E07, 14E30, 14J50

description: Following a recent work of Oguiso, we calculate explicitly the groups of automorphisms and birational automorphisms on a Calabi-Yau manifold with Picard number two. When the group of birational automorphisms is infinite, we prove that the Cone conjecture of Morrison and Kawamata holds.
description: to appear in Math. Res. Lett
Diode- And Difference-Frequency Laser Studies Of Atmospheric Molecules In The Near- And Mid-Infrared: H2O, No2, And Nh3
Creators: name: Orphal, Johannes
name: Chelin, Pascale
name: Flaud, Pierre-Marie
name: Ibrahim, Nofal
Publisher: name: Zenodo
Year: 2006
Subjects: Astronomical spectroscopy
HITRAN

description: The advantages of using external cavity diode-lasers (ECDL) for quantitative spectroscopy in the laboratory are in particular the absence of any significant instrumental line shape (ECDL have typical emission line widths of 1 MHz i.e. a few 0.00001 cm-1), the fast temporal response and the high signal-to-noise ratio that can be achieved in rather short experiments. We have used near-infrared ECDL to study line widths and intensities of H2O around 820 nm and of NH3 around 1.5ãm. The results are compared with HITRAN and with previous experimental studies. For NH3 we have also recorded new near-infrared absorption spectra using a Bruker IFS 120 HR Fourier transform spectrometer, to investigate significant discrepancies concerning the line positions and intensities from the available literature. Recently we have constructed a compact difference frequency (DFG) laser that is operating in the mid-infrared region between 1900 ? 3100 cm-1 by mixing a tuneable ECDL (820 ? 880 nm range) with a cw Nd:YAG laser (1064 nm) using a Periodically Poled Lithium Niobate ? PPLN ? crystal as non-linear medium. This DFG laser (also 1 MHz linewidth) was used to study line positions and intensities of NO2 in the 3.5ãm region and in particular to compare the line intensities with the absorption cross-sections of NO2 in the 400 nm region that are known to within better than 2%. Again the results are compared with the HITRAN database. We are now moving towards using ECDL for studying unstable species and radicals.
description: Session 1 presentation
description: {"references": ["None given"]}
Water Pressure Broadening: A Never-Ending Story
Creators: name: Wagner, Georg
name: Birk, Manfred
Publisher: name: Zenodo
Year: 2006
Subjects: Astronomical spectroscopy
HITRAN

description: Numerous papers on pressure broadening of water have been published, however, with differences exceeding stated uncertainties. The present work attempts to initiate a process towards better defined uncertainties. Self- and airbroadened water vapour spectra were recorded with a Bruker IFS120HR in the range from 1250 to 1750 cm -1. 45 measurements covered the temperature range 208 - 316 K, air pressures from 0 - 1000 mbar, sample pressures 0.0004 - 5 mbar, and absorption paths 0.16 - 84 m. To allow for quality assurance, care was taken to cover most lines by several measurements with different opacity and linewidth. Furthermore, the data cover five orders of magnitude in intensity. Transmittance spectra were corrected for detector non-linearity and channeling. Line-by-line analysis was done on a microwindow basis resulting in positions, linestrengths and linewidths using the Voigt function as monochromatic lineshape. In the line fitting, especially of the 50 mbar measurements, the residual spectra show systematic deviations due to Dicke narrowing which are mostly smaller than 1%. The further data reduction was done with a new software tool which reads the broadening data and fits air and self pressure broadening parameter and temperature exponent. The software compiles the experimental data for each transition and selects the parameters to be fitted. The software also allows for various data quality assessments which are presented in this talk. This quality assessment revealed that 50 mbar measurements had to be excluded from the data analysis due to the Voigt profile being not capable of yielding pressure- and opacity-independent broadening parameters for these measurements. An important quality assessment is the intercomparison with hot cell measurementswhich were obtained a few years ago using a different cell, beamsplitter, detector, higher air pressure (500, 1000 mbar) and a different flow setup. The line broadening agreed within 1% on average. Finally, the differences of measured and calculated spectra were investigated showing almost pure instrumental noise and thus indicating that the data reduction is not introducing systematic errors. In total the number of air broadening parameters is 985 (?2: 44% H2O, 17% H182O, 10% H172O, 12% HDO, 2 ?2 - ?2 H2O: 17%) and of temperature exponents is 672. The resulting data show that in contrast to ozone the pressure broadening cannot be expressed in polynomials in the quantum numbers. Intercomparison with HITRAN 2004 and other authors, especially Toth, will be discussed.
description: Session 1 presentation
description: {"references": ["None given"]}
Topological Fields, Constituents And Coreference: A New Multi-Layer Architecture For Tüba-D/Z.
Creators: name: Krause, Thomas
name: Ritz, Julia
name: Zeldes, Amir
name: Zipser, Florian
Publisher: name: Zenodo
Year: 2015
Subjects: ANNIS
Pepper
SaltNPepper
TüBa-D/Z
GSCL
linguistics
computer linguistics
corpus

description: This poster is concerned with a new multi-layer representation of the German TüBa-D/Z Treebank, which allows users to conveniently query and visualize annotations for syntactic constituents, topological fields and coreference either separately or in conjunction.
Saltnpepper Und Das Formatpluriversum
Creators: name: Zipser, Florian
Publisher: name: Zenodo
Year: 2014
Subjects: Salt
Pepper
SaltNPepper
linguistic data
formats
corpus

description: These slides are about the conversion framework Pepper for linguistic data and the common meta model Salt it is based on. Further they address the problem of the multiverse of formats for linguistic data. The slides are in German.

Diese Folien beschreiben das Problem des Formatpluriversums für linguistische Daten sowie das Konverterframeork Pepper und das Metamodell Salt, die entwickelt wurden, um mit den unterscheidlichen Formaten umgehen zu können.
Equivalence of distance-based and RKHS-based statistics in hypothesis testing
Creators: name: Sejdinovic, Dino
name: Sriperumbudur, Bharath
name: Gretton, Arthur
name: Fukumizu, Kenji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: Machine Learning (cs.LG)
subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We provide a unifying framework linking two classes of statistics used in two-sample and independence testing: on the one hand, the energy distances and distance covariances from the statistics literature; on the other, maximum mean discrepancies (MMD), that is, distances between embeddings of distributions to reproducing kernel Hilbert spaces (RKHS), as established in machine learning. In the case where the energy distance is computed with a semimetric of negative type, a positive definite kernel, termed distance kernel, may be defined such that the MMD corresponds exactly to the energy distance. Conversely, for any positive definite kernel, we can interpret the MMD as energy distance with respect to some negative-type semimetric. This equivalence readily extends to distance covariance using kernels on the product space. We determine the class of probability distributions for which the test statistics are consistent against all alternatives. Finally, we investigate the performance of the family of distance kernels in two-sample and independence tests: we show in particular that the energy distance most commonly employed in statistics is just one member of a parametric family of kernels, and that other choices from this family can yield more powerful tests.
description: Published in at http://dx.doi.org/10.1214/13-AOS1140 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Big five personality traits and dream recall frequency in spontaneous vs. self-trained lucid dreamers
Creators: name: Shafiei, Bita
Publisher: name: International Journal of Dream Research
Year: 2019

description: Lucid dreamers were considered as a whole population in most of the studies. Accordingly, this study purpose was to divide them into two groups of spontaneous and self-trained lucid dreamers and also to investigate lucid dreaming frequency, and its association with big five personality traits and dream recall frequency in both spontaneous vs. self-trained lucid dreamers. A total of 324 individuals participated in an online survey and filled out NEO Five-Factor Inventory, and some other questions along with that about lucid dream different aspects and dream recall frequency. The results indicated that there were certain differences established in both spontaneous and self-trained lucid dreamers. In addition, agreeableness and openness to experience were negatively associated with lucid dreaming frequency amongst self-trained lucid dreamers, while the relationship was positive for extraversion. The only factor that could affect lucid dreaming frequency in both spontaneous and self-trained lucid dreamers groups was dream recall frequency with a significant and positive association. As it was observed, there are some personality traits that make self-trained lucid dreamers interested in lucid dreaming, and also lead them to deliberately experience this phenomenon.
description: International Journal of Dream Research, Vol 12, No 2 (October 2019)
Proof-of-principle demonstration of measurement-device-independent quantum key distribution using polarization qubits
Creators: name: da Silva, T. Ferreira
name: Vitoreti, D.
name: Xavier, G. B.
name: Amaral, G. C. do
name: Temporão, G. P.
name: von der Weid, J. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We perform a proof-of-principle demonstration of the measurement-device-independent quantum key distribution (MDI-QKD) protocol using weak coherent states and polarization-encoded qubits over two optical fiber links of 8.5 km each. Each link was independently stabilized against polarization drifts using a full-polarization control system employing two wavelength-multiplexed control channels. A linear-optics-based polarization Bell-state analyzer was built into the intermediate station, Charlie, which is connected to both Alice and Bob via the optical fiber links. Using decoy-states, a lower bound for the secret-key generation rate of 1.04x10^-6 bits/pulse is computed.
A unified quantum theory I: gravity interacting with a Yang-Mills field
Creators: name: Gerhardt, Claus
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 83, 83C, 83C45

description: Using the results and techniques of a previous paper where we proved the quantization of gravity we extend the former result by adding a Yang-Mills functional and a Higgs term to the Einstein-Hilbert action.
description: v4: minor corrections in some formulas, to appear in ATMP, arXiv admin note: text overlap with arXiv:1205.1427. text overlap with arXiv:1205.1427
Dream recall after Multiple Sleep Latency Test naps with and without REM sleep
Creators: name: Schredl, Michael
name: Olbrich, Kate Isobel
Publisher: name: International Journal of Dream Research
Year: 2019

description: The current paper aimed to look into whether Rapid Eye movement (REM) sleep and narcolepsy would have an influence on dream recall frequency after a nap within the Multiple Sleep Latency Test (MSLT) procedure. Overall, 146 patients with a large variety of diagnoses were included. Patients completed a scale measuring dream recall frequency prior to the study and after every MSLT nap an item whether they could recall a dream or not. The findings indicate that REM naps yielded higher dream recall rates than naps without REM and that narcolepsy patients reported higher dream recall than patients with other diagnoses. The results supported the functional state-shift model of dream recall but also provided evidence that models that include physiological as well as psychological variables are most promising for explaining intra-individual and inter-individual differences in dream recall.
description: International Journal of Dream Research, Vol 12, No 2 (October 2019)
Domburg-Fachgespräch in Osnabrück (11. bis 12. Mai 2007)
Creators: name: Fischer, Ellinor
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 76 (2007): Nachrichten aus Niedersachsens Urgeschichte
Andreas Hauptmann, Volker Pingel (Hrsg.), Archäometrie. Methoden und Anwendungsbeispiele
Creators: name: Heine, Hans-Wilhelm
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Andreas Hauptmann, Volker Pingel (Hrsg.), Archäometrie. Methoden und Anwendungsbeispiele. Stuttgart: E. Schweizer-bart’sche Verlagsbuchhandlung, Science Publisher 2008. XVI, 264 Seiten mit 138 z.T. farbigen Abbildungen und 7 Tabellen. Hardcover. ISBN 978-3-510-65232-7
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 78 (2009): Nachrichten aus Niedersachsens Urgeschichte
On Dimension Bounds for Auxiliary Quantum Systems
Creators: name: Beigi, Salman
name: Gohari, Amin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Expressions of several capacity regions in quantum information theory involve an optimization over auxiliary quantum registers. Evaluating such expressions requires bounds on the dimension of the Hilbert space of these auxiliary registers, for which no non-trivial technique is known; we lack a quantum analog of the Carathéodory theorem. In this paper, we develop a new non-Carathéodory-type tool for evaluating expressions involving a single quantum auxiliary register and several classical random variables. As we show, such expressions appear in problems of entanglement-assisted Gray-Wyner and entanglement-assisted channel simulation, where the question of whether entanglement helps in these settings is related to that of evaluating expressions with a single quantum auxiliary register. To evaluate such expressions, we argue that developing a quantum analog of the Carathéodory theorem requires a better understanding of a notion which we call ``quantum conditioning." We then proceed by proving a few results about quantum conditioning, one of which is that quantum conditioning is strictly richer than the usual classical conditioning.
description: 30 pages, title changed, structure significantly improved, results unchanged, to appear in IEEE TIT
Daniela Gräf, Boat Mills in Europe from Early Medieval to Modern Times
Creators: name: Neß, Wolfgang
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Daniela Gräf, Boat Mills in Europe from Early Medieval to Modern Times. Veröffentlichungen des Landesamtes für Archäologie mit Landesmuseum für Vorgeschichte, Band 51 / Bibliotheca Molinologica, Volume 19. Dresden: Landesamt für Archäologie mit Landesmuseum für Vorgeschichte 2006. 368 Seiten mit 484 Textabbildungen und 2 Farbtafeln. Broschiert. ISBN 978-3-910008-73-1
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 78 (2009): Nachrichten aus Niedersachsens Urgeschichte
Invariants, exponents and formal group laws
Creators: name: Malagon-Lopez, Jose
name: Zainoulline, Kirill
name: Zhong, Changlong
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13A50, 14L24, 20F55

description: Let W be the Weyl group of a crystallographic root system acting on the associated weight lattice by reflections. In the present notes we extend the notion of an exponent of the W-action introduced in [Baek-Neher-Zainoulline, arXiv:1106.4332] to the context of an arbitrary algebraic oriented cohomology theory of Levine-Morel, Panin-Smirnov and the associated formal group law. From this point of view the classical Dynkin index of the associated Lie algebra will be the second exponent of the deformation map from the multiplicative to the additive formal group law. We apply this generalized exponent to study the torsion part of an arbitrary oriented cohomology theory of a twisted flag variety.
description: 15 pages, the last section is revised
Erdos-Szekeres-type statements: Ramsey function and decidability in dimension 1
Creators: name: Bukh, Boris
name: Matousek, Jiri
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05D10 (Primary) 52C45 (Secondary)

description: A classical and widely used lemma of Erdos and Szekeres asserts that for every n there exists N such that every N-term sequence a of real numbers contains an n-term increasing subsequence or an n-term nondecreasing subsequence; quantitatively, the smallest N with this property equals (n-1)^2+1. In the setting of the present paper, we express this lemma by saying that the set of predicates Phi={x_1
description: minor fixes of the previous version. to appear in Duke Math. J
Hexose Fermentation By The Fission Yeast Schizosaccharomyces pombe and Characterization of its Hexokinase
Creators: name: ESTER MPANDI-KHOSA
Publisher: name: Monash University
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: This thesis describes a study of some aspects of ethanol production by the fission yeast Schizosaccharomyces pombe and the purification and characterization of its hexokinase.
Comparisons were made between S. pombe MY4 (also L972) and new isolates of S. pombe (from molasses) and Saccharomyces cerevisiae (from a preparation used for industrial production of ethanol) obtained in Zimbabwe. All three strains of yeasts produced ethanol with high efficiency and although the strain of Saccharomyces cerevisiae was somewhat more tolerant of ethanol than the two strains of S. pombe, the latter were more tolerant of high concentrations of sugars, growing in up to 60% (w/v) sucrose.
Studies on S. pombe MY 4 showed that its optimum pH for growth and ethanol production was less than 5.5, and it had a requirement for air during fermentation of glucose. When growing on sucrose the extent of growth was reduced by concentrations above 20% (w/v), probably due to inhibition by the accumulating ethanol, since ethanol increased the growth inhibiting effect of high concentrations of sucrose. This inhibition could be overcome by carrying out the fermentation under reduced pressure and removing the ethanol as it was formed.[...]
Global results for linear waves on expanding Kerr and Schwarzschild de Sitter cosmologies
Creators: name: Schlue, Volker
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q75

description: In this global study of solutions to the linear wave equation on Schwarzschild de Sitter spacetimes we attend to the cosmological region of spacetime which is bounded in the past by cosmological horizons and to the future by a spacelike hypersurface at infinity. We prove an energy estimate capturing the expansion of that region which combined with earlier results for the static region yields a global boundedness result for linear waves. It asserts that a general finite energy solution to the global initial value problem has a limit on the future boundary at infinity that can be viewed as a function on the standard cylinder with finite energy, and that moreover any decay along the cosmological horizon is inherited along the future boundary. In particular, we exhibit an explicit nonvanishing quantity on the future boundary of the spacetime consistent with our expectations for the nonlinear stability problem. Our results apply to a large class of expanding cosmologies near the Schwarzschild de Sitter geometry, in particular subextremal Kerr de Sitter spacetimes.
description: Substantially extended results for Kerr de Sitter backgrounds, and more general expanding cosmologies without symmetries (Section 5); applications to Klein-Gordon equations added (Section 7); Introduction (Section 2.3.2) and references updated; 45 pages, 7 figures
Kernelized Supervised Dictionary Learning
Creators: name: Gangeh, Mehrdad J.
name: Ghodsi, Ali
name: Kamel, Mohamed S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper, we propose supervised dictionary learning (SDL) by incorporating information on class labels into the learning of the dictionary. To this end, we propose to learn the dictionary in a space where the dependency between the signals and their corresponding labels is maximized. To maximize this dependency, the recently introduced Hilbert Schmidt independence criterion (HSIC) is used. One of the main advantages of this novel approach for SDL is that it can be easily kernelized by incorporating a kernel, particularly a data-derived kernel such as normalized compression distance, into the formulation. The learned dictionary is compact and the proposed approach is fast. We show that it outperforms other unsupervised and supervised dictionary learning approaches in the literature, using real-world data.
description: This paper has been withdrawn by the author as it has been already published by the IEEE Trans. on Signal Processing and is now available online
Uma Investigação sobre Análise de Sentimentos e Categorização de Issues Reabertas do GitHub
Creators: name: Boechat, Glaucya
name: Machado, Ivan
name: Mendonça, Manoel
Publisher: name: Zenodo
Year: 2023
Subjects: Análise de Sentimentos
Reabertura de issues
Categorização de Issues
Análise de Sentimentos baseado em léxico

description: A reabertura de issues representa um desafio significativo no desenvolvimento e manutenção de software, acarretando custos e complexidade. Essa ocorrência muitas vezes indica problemas não resolvidos ou mal compreendidos na comunicação entre colaboradores do projeto e usuários, especialmente em plataformas como o GitHub. Nosso estudo visa aprofundar a compreensão dessas reaberturas em repositórios de código aberto, utilizando dados históricos, categorização de issues e análise de sentimentos dos desenvolvedores. Na metodologia, empregamos a ferramenta SentiStrength-SE, adaptada para léxicos de Engenharia de Software, para obter pontuações negativas, positivas e o sentimento nas discussões relacionadas às issues. Desenvolvemos um modelo de categorização automática, classificando issues em áreas como Banco de Dados, Configuração, Desempenho, Funcional, Interface Homem-Máquina, Informação, Permissões/Obsoleto, Redes, Segurança e Testes. Finalmente, caracterizamos a reabertura de issues conforme os sentimentos dos desenvolvedores em cada categoria. Os resultados destacaram que a análise de sentimentos, embora valiosa, por si só não prevê com precisão as reaberturas de issues. A combinação de sentimentos com a categoria mostrou-se mais eficaz, sublinhando a importância do contexto e compreensão dos sentimentos para uma gestão eficaz no desenvolvimento de software.
Topological Flat Bands from Dipolar Spin Systems
Creators: name: Yao, Norman Y.
name: Laumann, Chris R.
name: Gorshkov, Alexey V.
name: Bennett, Steven D.
name: Demler, Eugene
name: Zoller, Peter
name: Lukin, Mikhail D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose and analyze a physical system that naturally admits two-dimensional topological nearly flat bands. Our approach utilizes an array of three-level dipoles (effective S = 1 spins) driven by inhomogeneous electromagnetic fields. The dipolar interactions produce arbitrary uniform background gauge fields for an effective collection of conserved hardcore bosons, namely, the dressed spin-flips. These gauge fields result in topological band structures, whose bandgap can be larger than the corresponding bandwidth. Exact diagonalization of the full interacting Hamiltonian at half-filling reveals the existence of superfluid, crystalline, and supersolid phases. An experimental realization using either ultra-cold polar molecules or spins in the solid state is considered.
description: 8 pages, 5 figures. V2: Added discussion of optical dressing - final version as published in Phys. Rev. Lett
A note on the discrete-time evolutions of quantum walk on a graph
Creators: name: Higuchi, Yusuke
name: Konno, Norio
name: Sato, Iwao
name: Segawa, Etsuo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: For a quantum walk on a graph, there exist many kinds of operators for the discrete-time evolution. We give a general relation between the characteristic polynomial of the evolution matrix of a quantum walk on edges and that of a kind of transition matrix of a classical random walk on vertices. Furthermore we determine the structure of the positive support of the cube of some evolution matrix, which is said to be useful for isospectral problem in graphs, under a certain condition.
description: 11 pages, revised version, title changed, Journal-ref added
Motives and the Hodge Conjecture for moduli spaces of pairs
Creators: name: Muñoz, Vicente
name: Oliveira, André
name: Sánchez, Jonathan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F45, 14D20, 14H60

description: Let $C$ be a smooth projective curve of genus $g\geq 2$ over $\mathbb C$. Fix $n\geq 1$, $d\in {\mathbb Z}$. A pair $(E,ϕ)$ over $C$ consists of an algebraic vector bundle $E$ of rank $n$ and degree $d$ over $C$ and a section $ϕ\in H^0(E)$. There is a concept of stability for pairs which depends on a real parameter $τ$. Let ${\mathfrak M}_τ(n,d)$ be the moduli space of $τ$-polystable pairs of rank $n$ and degree $d$ over $C$. Here we prove that for a generic curve $C$, the moduli space ${\mathfrak M}_τ(n,d)$ satisfies the Hodge Conjecture for $n \leq 4$. For obtaining this, we prove first that ${\mathfrak M}_τ(n,d)$ is motivated by $C$.
description: 23 pages. v3. Final version. Accepted in Asian J. Math
The photochemistry of a diepoxy ketone
Creators: name: Schneider, Diana Sonja
Publisher: name: Monash University
Year: 2017
Subjects: Uncategorized

description: In dilute ethanol or tertiary butanol solutions irradiated with light of wavelength 300 nm, 1:1', 3:4-diepoxy-1-methyl-2- tetralone (I) was found to rearrange to the phenols (III) and (XIX) and to the pyrone (XXI). The identities of (XIX) and (XXI) were confirmed by synthesis whilst the identity of (III) was confirmed by comparing its properties with those of an authentic sample. Possible rearrangement mechanisms leading to the formation of these products are described.
Composition and chemistry of the atmosphere: selected publications (1968-2008)
Creators: name: Galbally, Ian Edward
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: In 1995 IUPAC (International Union of Pure and Applied Chemistry) published a units and nomenclature guide for atmospheric chemistry (Schwartz and Warneck 1995). As well, the 1995 Nobel Prize for Chemistry was awarded to Paul Crutzen, Mario Molina and F. Sherwood Rowland "for their work in atmospheric chemistry, particularly concerning the formation and decomposition of ozone". Atmospheric chemistry had come of age, as a field within the discipline of Chemistry. The Publications presented in this thesis cover the period 1968-2008, a period that witnessed the emergence and maturing of atmospheric chemistry as a scientific discipline. There appears to be no recent account of the historical development of atmospheric chemistry (as distinct from air pollution). Therefore, to provide the context for the work in the thesis, the development of knowledge about atmospheric composition and chemistry is briefly summarised in this Introduction. Reviews of the developments of the relevant areas of atmospheric composition and chemistry introduce each chapter.
Klaus Fittschen und Paul Zänker, Katalog der römischen Porträts in den kapitolinischen Museen und den anderen kommunalen Sammlungen der Stadt Rom 1. Kaiser-und Prinzenbildnisse
Creators: name: Meischner, Jutta
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Klaus Fittschen und Paul Zänker, Katalog der römischen Porträts in den kapitolinischen Museen und den anderen kommunalen Sammlungen der Stadt Rom 1. Kaiser-und Prinzenbildnisse. Verlag Philipp von Zabern, Mainz 1985. Textband mit XI, 184 Seiten, 1 Abbildung, 1 Farbtafel; Tafelband mit VIII Seiten, 158 Tafeln mit 602 Abbildungen, 96 Beilagen mit 423 Abbildungen.
description: Bonner Jahrbücher, Bd. 187.1987: Bonner Jahrbücher
Dorothee Renner, Die spätantiken und koptischen Textilien im Hessischen Landesmuseum in Darmstadt
Creators: name: Simon, Erika
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Dorothee Renner, Die spätantiken und koptischen Textilien im Hessischen Landesmuseum in Darmstadt. 116 Seiten, 29 Tafeln, 1 Farbtafel. Verlag Otto Harrassowitz, Wiesbaden 1985.
description: Bonner Jahrbücher, Bd. 187.1987: Bonner Jahrbücher
The Macro View 2022 - Total Australian Research Data and the Data Growth Rate
Creators: name: Soo, Ai-Lin
name: Francis, Rhys
name: Betbeder-Matibet, Luc
Publisher: name: Zenodo
Year: 2023

description: For the last 6 years, a small group of research intensive universities have bee working to understand the characteristics of a more effective research data culture - https://www.researchdataculture.org.
In 2022, the first attempt to answer the question "What is the volume of unique data managed by Australian research sector institutions for the purpose of future access?" was published and reported 300PB of first copy research data held across Australian research organisations in 2021 - The Macro View. 
Now in 2023, the Macro View was repeated to find out;
What is Australia's research data growth rate?
Information geometry, dynamics and discrete quantum mechanics
Creators: name: Reginatto, Marcel
name: Hall, Michael J. W.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a system with a discrete configuration space. We show that the geometrical structures associated with such a system provide the tools necessary for a reconstruction of discrete quantum mechanics once dynamics is brought into the picture. We do this in three steps. Our starting point is information geometry, the natural geometry of the space of probability distributions. Dynamics requires additional structure. To evolve the probabilities $P^k$, we introduce coordinates $S^k$ canonically conjugate to the $P^k$ and a symplectic structure. We then seek to extend the metric structure of information geometry, to define a geometry over the full space of the $P^k$ and $S^k$. Consistency between the metric tensor and the symplectic form forces us to introduce a Kähler geometry. The construction has notable features. A complex structure is obtained in a natural way. The canonical coordinates of the Kähler space are precisely the wave functions of quantum mechanics. The full group of unitary transformations is obtained. Finally, one may associate a Hilbert space with the Kähler space, which leads to the standard version of quantum theory. We also show that the metric that we derive here using purely geometrical arguments is precisely the one that leads to Wootters' expression for the statistical distance for quantum systems.
description: 12 pages. Presented at MaxEnt 2012, the 32nd International Workshop on Bayesian Inference and Maximum Entropy Methods in Science and Engineering, July 15-20, 2012, Garching near Munich, Germany. Updated version includes corrections of typos and minor revisions
Critical properties of the Hintermann-Merlini model
Creators: name: Ding, Chengxiang
name: Wang, Yancheng
name: Zhang, Wanzhou
name: Guo, Wenan
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Many critical properties of the Hintermann-Merlini model are known exactly through the mapping to the eight-vertex model. Wu [J. Phys. C {\bf 8}, 2262 (1975)] calculated the spontaneous magnetizations of the model on two sublattices by relating them to the conjectured spontaneous magnetization and polarization of the eight-vertex model, respectively. The latter conjecture remains unproved. In this paper, we numerically study the critical properties of the model by means of a finite-size scaling analysis based on transfer matrix calculations and Monte Carlo simulations. All analytic predictions for the model are confirmed by our numerical results. The central charge $c=1$ is found for the critical manifold investigated. In addition, some unpredicted geometry properties of the model are studied. Fractal dimensions of the largest Ising clusters on two sublattices are determined. The fractal dimension of the largest Ising cluster on the sublattice A takes fixed value $D_{\rm a}=1.888(2)$, while that for sublattice B varies continuously with the parameters of the model.
description: 8 pages, 10 figures
Dealing with nonresponse in survey sampling: a latent modeling approach
Creators: name: Matei, Alina
name: Ranalli, M. Giovanna
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: 62D05

description: Nonresponse is present in almost all surveys and can severely bias estimates. It is usually distinguished between unit and item nonresponse: in the former, we completely fail to have information from a unit selected in the sample, while in the latter, we observe only part of the information on the selected unit. Unit nonresponse is usually dealt with by reweighting: each unit selected in the sample has associated a sampling weight and an unknown response probability; the initial sampling weight is multiplied by the inverse of estimated response probability. Item nonresponse is usually dealt with by imputation. By noting that for a particular survey variable, we just have observed and unobserved values, in this work we exploit the connection between unit and item nonresponse. In particular, we assume that the factors that drive unit response are the same as those that drive item response on selected variables of interest. Response probabilities are then estimated by using a logistic regression with a latent covariate that measures such will to respond and that can explain part of the unknown behavior of a unit to participate in the survey. The latent covariate is estimated using latent trait models. Such approach is particularly relevant for sensitive items and, therefore, can handle non-ignorable nonresponse. Auxiliary information known for both respondents and nonrespondents can be included either in the latent variable model or in the logistic model. The approach can be also used when auxiliary information is not available, and we focus here on this case. The theoretical properties of the proposed estimators are sketched and simulations studies are conducted to illustrate their finite size sample performance.
description: 28 pages
John Mitchell Kemble in seiner Bedeutung für die niedersächsische Urgeschichtsforschung
Creators: name: Gummel, Hans
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 20 (1951): Nachrichten aus Niedersachsens Urgeschichte
Angular Correlation of the CMB in the R_h=ct Universe
Creators: name: Melia, Fulvio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The emergence of several unexpected large-scale features in the cosmic microwave background (CMB) has pointed to possible new physics driving the origin of density fluctuations in the early Universe and their evolution into the large-scale structure we see today. In this paper, we focus our attention on the possible absence of angular correlation in the CMB anisotropies at angles larger than ~60 degrees, and consider whether this feature may be the signature of fluctuations expected in the R_h=ct Universe. We calculate the CMB angular correlation function for a fluctuation spectrum expected from growth in a Universe whose dynamics is constrained by the equation-of-state p=-rho/3, where p and rho are the total pressure and density, respectively. We find that, though the disparity between the predictions of LCDM and the WMAP sky may be due to cosmic variance, it may also be due to an absence of inflation. The classic horizon problem does not exist in the R_h=ct Universe, so a period of exponential growth was not necessary in this cosmology in order to account for the general uniformity of the CMB (save for the aforementioned tiny fluctuations of 1 part in 100,000 in the WMAP relic signal. We show that the R_h=ct Universe without inflation can account for the apparent absence in CMB angular correlation at angles > 60 degrees without invoking cosmic variance, providing additional motivation for pursuing this cosmology as a viable description of nature.
description: Accepted for publication in Astronomy & Astrophysics
Weak gravitational lensing by compact objects in fourth order gravity
Creators: name: Horváth, Zsolt
name: Gergely, László Á.
name: Hobill, David
name: Capozziello, Salvatore
name: De Laurentis, Mariafelicia
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We discuss weak lensing characteristics in the gravitational field of a compact object in the low-energy approximation of fourth order f(R) gravity theory. The particular solution is characterized by a gravitational strength parameter $σ$ and a distance scale $r_{c}$ much larger than the Schwarzschild radius. Above $r_{c}$ gravity is strengthened and as a consequence weak lensing features are modified compared to the Schwarzschild case. We find a critical impact parameter (depending upon $r_{c}$) for which the behavior of the deflection angle changes. Using the Virbhadra-Ellis lens equation we improve the computation of the image positions, Einstein ring radii, magnification factors and the magnification ratio. We demonstrate that the magnification ratio as function of image separation obeys a power-law depending on the parameter $σ$, with a double degeneracy. No $σ\neq 0$ value gives the same power as the one characterizing Schwarzschild black holes. As the magnification ratio and the image separation are the lensing quantities most conveniently determined by direct measurements, future lensing surveys will be able to constrain the parameter $σ$ based on this prediction.
description: 14 pages, 8 figures, published version. Appendix added on the energy conditions for the modifications from GR, interpreted as an effective energy-momentum tensor
Die Entwicklung der Archäologischen Denkmalpflege bei der Unteren Denkmalschutzbehörde der Stadt Einbeck bis zum Jahr 2004
Creators: name: Heege, Andreas
name: Teuber, Stefan
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 74 (2005): Nachrichten aus Niedersachsens Urgeschichte
Heinz-Josef Stümpel, Früh- bis spätmittelalterliche Keramik aus dem südlichen nordfriesischen Marschengebiet und Wattenmeer
Creators: name: Thier, Bernd
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Rezension zu: Heinz-Josef Stümpel, Früh- bis spätmittelalterliche Keramik aus dem südlichen nordfriesischen Marschengebiet und Wattenmeer. Studien zur Küstenarchäologie Schleswig-Holsteins, Serie C: Norderhever-Projekt, Band 2 = Offa-Bücher, Band 81. Hrsg. v. Alfred Haffner u. Michael Müller-Wille. Neumünster: Wachholtz-Verlag 2002. 313 Seiten mit 34 Abbildungen, 30 Tabellen, 11 Karten, 29 Tafeln; 1 CD-ROM als Beilage mit 100 Tabellen. Leinen. ISBN 3-529-01181-9
description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 74 (2005): Nachrichten aus Niedersachsens Urgeschichte
Der Kachelfund von der Echternstrasse 18 in Peine Zu seiner Neudatierung und Neuinterpretation
Creators: name: Kristiansen, Ole
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 78 (2009): Nachrichten aus Niedersachsens Urgeschichte
Salztorfabbau im Jadebusengebiet Prospektion von anthropogenen Landabsenkungen und ihren Folgen
Creators: name: Siegmüller, Annette
name: Bungenstock, Friederike
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 79 (2010): Nachrichten aus Niedersachsens Urgeschichte
Information geometry and sufficient statistics
Creators: name: Ay, Nihat
name: Jost, Jürgen
name: Lê, Hông Vân
name: Schwachhöfer, Lorenz
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C99, 62B05

description: Information geometry provides a geometric approach to families of statistical models. The key geometric structures are the Fisher quadratic form and the Amari-Chentsov tensor. In statistics, the notion of sufficient statistic expresses the criterion for passing from one model to another without loss of information. This leads to the question how the geometric structures behave under such sufficient statistics. While this is well studied in the finite sample size case, in the infinite case, we encounter technical problems concerning the appropriate topologies. Here, we introduce notions of parametrized measure models and tensor fields on them that exhibit the right behavior under statistical transformations. Within this framework, we can then handle the topological issues and show that the Fisher metric and the Amari-Chentsov tensor on statistical models in the class of symmetric 2-tensor fields and 3-tensor fields can be uniquely (up to a constant) characterized by their invariance under sufficient statistics, thereby achieving a full generalization of the original result of Chentsov to infinite sample sizes. More generally, we decompose Markov morphisms between statistical models in terms of statistics. In particular, a monotonicity result for the Fisher information naturally follows.
description: 37 p, final version, minor corrections, improved presentation
Kommunalarchäologie in Stadt und Landkreis Osnabrück
Creators: name: Zehm, Bodo
Publisher: name: Nachrichten aus Niedersachsens Urgeschichte
Year: 2019

description: Nachrichten aus Niedersachsens Urgeschichte, Bd. 74 (2005): Nachrichten aus Niedersachsens Urgeschichte
A control problem with fuel constraint and Dawson-Watanabe superprocesses
Creators: name: Schied, Alexander
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Optimization and Control (math.OC)
subject: Computational Finance (q-fin.CP)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: We solve a class of control problems with fuel constraint by means of the log-Laplace transforms of $J$-functionals of Dawson-Watanabe superprocesses. This solution is related to the superprocess solution of quasilinear parabolic PDEs with singular terminal condition. For the probabilistic verification proof, we develop sharp bounds on the blow-up behavior of log-Laplace functionals of $J$-functionals, which might be of independent interest.
description: Published in at http://dx.doi.org/10.1214/12-AAP908 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)