cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A dunnett-type procedure for multiple endpoints
Creators: name: Hasler, Mario
name: Hothorn, Ludwig A.
Publisher: name: Berlin : Walter de Gruyter
Year: 2011
Subjects: subject: family-wise error
subject: many-to-one comparison
subject: multiple endpoints
subject: multivariate t em>-distribution
subject: article
subject: binomial distribution
subject: dunnett procedure
subject: extracorporeal circulation
subject: multiple endpoint
subject: multivariate analysis
subject: rating scale
subject: simulation
subject: statistical analysis
subject: variance
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: This paper describes a method for comparisons of several treatments with a control, simultaneously for multiple endpoints. These endpoints are assumed to be normally distributed with different scales and variances. An approximate multivariate t-distribution is used to obtain quantiles for test decisions, multiplicity-adjusted p-values, and simultaneous confidence intervals. Simulation results show that this approach controls the family-wise error type I over both the comparisons and the endpoints in an admissible range. The approach will be applied to a randomized clinical trial comparing two new sets of extracorporeal circulations with a standard for three primary endpoints. A related R package is available. © 2011 Berkeley Electronic Press. All rights reserved.
Are we Architects of our own happiness? The Importance of Family Background for Well-Being
Creators: name: Schnitzlein, D.D.
name: Wunder, C.
Publisher: name: Berlin : Walter de Gruyter
Year: 2016
Subjects: subject: family background
subject: intergenerational mobility
subject: subjective well-being
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: This paper analyzes whether individuals have equal opportunity to achieve happiness (or well-being). We estimate sibling correlations and intergenerational correlations in self-reported life satisfaction, satisfaction with household income, job satisfaction, and satisfaction with health. We find high sibling correlations for all measures of well-being. The results suggest that family background explains, on average, between 30% and 60% of the inequality in permanent well-being. The influence is smaller when the siblings' psychological and geographical distance from their parental home is larger. Results from intergenerational correlations suggest that parental characteristics are considerably less important than family and community factors. © 2016 by De Gruyter 2016.
An extracellular carboxylesterase from the basidiomycete Pleurotus sapidus hydrolyses xanthophyll esters
Creators: name: Zorn, Holger
name: Bouws, Henning
name: Takenberg, Meike
name: Nimtz, Manfred
name: Getzlaff, Rita
name: Breithaupt, Dietmar E.
name: Berger, Ralf Günter
Publisher: name: Berlin : Walter de Gruyter
Year: 2005
Subjects: subject: alpha/beta-hydrolase fold
subject: candida-rugosa lipases
subject: capsicum-annuum l.
subject: tagetes-erecta l.
subject: cholesterol esterase
subject: microbial lipases
subject: swiss-model
subject: proteins
subject: biotechnology
subject: carotenoids
subject: cDNA library
subject: fungi
subject: lipase
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: An extracellular enzyme capable of efficient hydrolysis of xanthophyll esters was purified from culture supernatants of the basidiomycete Pleurotus sapidus. Under native conditions, the enzyme exhibited a molecular mass of 430 kDa, and SDS-PAGE data suggested a composition of eight identical subunits. Biochemical characterisation of the purified protein showed an isoelectric point of 4.5, and ideal hydrolysis conditions were observed at pH 5.8 and 40 degrees C. Partial amino acid sequences were derived from N-terminal Edman degradation and from mass spectrometric ab initio sequencing of internal peptides. An 1861-bp cDNA containing an open reading frame of 1641 bp was cloned from a cDNA library that showed ca. 40% homology to Candida rugosa lipases. The P sapidus carboxylesterase represents the first enzyme of the lipase/esterase family from a basidiomycetous fungus that has been characterised at the molecular level.
Theory and Monte Carlo simulations for the stretching of flexible and semi-flexible single polymer chains under external fields
Creators: name: Manca, Fabio
name: Giordano, Stefano
name: Palla, Pier Luca
name: Cleri, Fabrizio
name: Colombo, Luciano
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recent developments of microscopic mechanical experiments allow the manipulation of individual polymer molecules in two main ways: \textit{uniform} stretching by external forces and \textit{non-uniform} stretching by external fields. Many results can be thereby obtained for specific kinds of polymers and specific geometries. In this work we describe the non-uniform stretching of a single, non-branched polymer molecule by an external field (e.g. fluid in uniform motion, or uniform electric field) by a universal physical framework which leads to general conclusions on different types of polymers. We derive analytical results both for the freely-jointed chain and the worm-like chain models based on classical statistical mechanics. Moreover, we provide a Monte Carlo numerical analysis of the mechanical properties of flexible and semi-flexible polymers anchored at one end. The simulations confirm the analytical achievements, and moreover allow to study the situations where the theory can not provide explicit and useful results. In all cases we evaluate the average conformation of the polymer and its fluctuation statistics as a function of the chain length, bending rigidity and field strength.
description: 13 pages, 11 (multiple) figures
Intention to Train Tertiary Vocational Education in Animation and Visual Effect: ExtendedTheory of Planned Behavior
Creators: name: Chanta Jhantasana
Publisher: name: Research Administration Division
Year: 2023
Subjects: Intension to Train
Animation and Visual Effect
Tertiary Vocational Education
Rajabhat University
Theory of Plan Behavior

description: Thammasat Review, 26, 1, 140-171
Optical black hole lasers
Creators: name: Faccio, Daniele
name: Arane, Tal
name: Lamperti, Marco
name: Leonhardt, Ulf
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using numerical simulations we show how to realise an optical black hole laser, i.e. an amplifier formed by travelling refractive index perturbations arranged so as to trap light between a white and a black hole horizon. The simulations highlight the main features of these lasers: the growth inside the cavity of positive and negative frequency modes accompanied by a weaker emission of modes that occurs in periodic bursts corresponding to the cavity round trips of the trapped modes. We then highlight a new regime in which the trapped mode spectra broaden until the zero-frequency points on the dispersion curve are reached. Amplification at the horizon is highest for zero-frequencies, therefore leading to a strong modification of the structure of the trapped light. For sufficiently long propagation times, lasing ensues only at the zero-frequency modes.
description: accepted for publication in Classical and Quantum Gravity
Adaptation of logistic operating curves to one-piece flow processes
Creators: name: Nyhuis, Peter
name: Vogel, Markus
Publisher: name: Bingley : Emerald Group Publishing Ltd.
Year: 2006
Subjects: subject: Delivery
subject: Distribution management
subject: Production management
subject: Production planning and control
subject: Dewey Decimal Classification::600 | Technik::650 | Management

description: Purpose - To provide a model for precise logistic controlling of one-piece flow processes and for the description of the interactions between logistic performance measures. The developed method can help manufacturing enterprises to control their production processes and therewith to exploit existing rationalization potentials in their production. Design/methodology/approach - The Institute of Production System and Logistics adapted the logistic operating curve for schedule reliability and the logistic operating curve for mean throughput time to describe the behaviour of one-piece flow processes. This model-based method depicts the correlation between the delivery reliability and mean WIP level of single manufacturing systems and enables a goal-oriented modelling as well as a controlling of single manufacturing processes. Findings - The derivation, calculation, and fields of application of the logistic operating curves for one-piece flow processes, that give a functional relationship between mean WIP, mean throughput time and schedule reliability, are presented in this paper. Moreover, the paper presents how the logistic performance measures can be adjusted to target values. Originality/value - This paper offers practical help to manufacturing enterprises confronted with the task of evaluation and optimization of manufacturing processes within the framework of production controlling. Moreover, the developed method enables manufacturing enterprises to identify bottleneck work systems where action can be taken to optimize their schedule situation and thereby improve the delivery reliability of an entire manufacturing department. © Emerald Group Publishing Limited.
As XII - Eine Preisangabe auf einem Sigillatateller aus Salzburg
Creators: name: Kovacsovics, Wilfried K.
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: -
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 65, Nr. 1 (1987)
Aerodynamic feeding systems: An example for changeable technology
Creators: name: Frädrich, Thomas
name: Pachow-Frauenhofer, Julia
name: Fiege, Torsten
name: Nyhuis, Peter
Publisher: name: Bingley : Emerald Group Publishing Ltd.
Year: 2011
Subjects: subject: Aerodynamics
subject: Factories
subject: Feeding devices
subject: Production management
subject: Aerodynamic feeding
subject: Competitive advantage
subject: Design/methodology/approach
subject: Technical applications
subject: Technical systems
subject: Work station
subject: Competition
subject: Industrial management
subject: Materials handling equipment
subject: Feeding
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Purpose - The purpose of this paper is to transfer the idea of changeability to a concrete technical application. Design/methodology/approach - Based on the definition of changeability on a factory level, a transformation of the five change enablers specified therein for the work station level using the example of an aerodynamic feeding system takes place in this paper. Findings - The observed aerodynamic feeding system can be determined as changeable. Practical implications - Changeable systems are able to react with low effort to exterior influences, e.g. of the market, and thus represent a considerable competitive advantage. Originality/value - The new element in this paper is the observation of change enablers on the work station level. This point of view enables the concrete figuration of changeable technical systems. © Emerald Group Publishing Limited [ISSN 0144-5154].
Lagrangian Descriptors: Discovery and Quantification of Phase Space Structure and Transport
Creators: name: Agaoglou, Makrina
name: Aguilar-Sanjuan, Broncio
name: García Garrido, Víctor José
name: González-Montoya, Francisco
name: Katsanikas, Matthaios
name: Krajňák, Vladimír
name: Naik, Shibabrat
name: Wiggins, Stephen
Publisher: name: Zenodo
Year: 2020
Subjects: dynamical systems
phase space structure
lagrangrian descriptors

description: This book is a collaborative project between researchers in the CHAMPS (Chemistry and Mathematics in Phase Space) research project https://www.champsproject.com Research in CHAMPS is concerned with discovering the geometrical structures in the phase space of dynamical systems that govern the many and varied mechanisms leading to a chemical reaction. Such dynamical systems are highly nonlinear, often time-dependent (both deterministic and stochastic), and generally high dimensional. When faced with such a complex dynamical setting, the researcher needs computational techniques for discovering the relevant geometrical structures as well as the theoretical techniques for interpreting the results of computations in the context of specific applications.
description: https://champsproject.github.io/lagrangian_descriptors/
Claus Oeftiger, Mehrfachbestattungen im Westhallstattkreis. Zum Problem der Totenfolge
Creators: name: Schmid-Sikimić, Biljana
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2019

description: Rezension zu: Claus Oeftiger, Mehrfachbestattungen im Westhallstattkreis. Zum Problem der Totenfolge. Antiquitas, Reihe 3, Band 26. Dr. Rudolf Habelt GmbH, Bonn 1984. ISBN 3-7749-2045-1. VII, 232 Seiten, 2 Karten und 10 Abbildungen
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 66, Nr. 2 (1988)
Brand extensions: A successful strategy in luxury fashion branding? Assessing consumers’ implicit associations
Creators: name: Hennigs, Nadine
name: Wiedmann, Klaus-Peter
name: Behrens, Stefan
name: Klarmann, Christiane
name: Carduck, Juliane
Publisher: name: Bingley : Emerald Group Publishing Ltd.
Year: 2013
Subjects: subject: Brand extension
subject: Implicit association test (IAT)
subject: Implicit measurement
subject: Luxury fashion branding
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: Although the investigation of brand extension strategies has gained importance, existing research focusses primarily on consumer attitudes to brand extensions, and to date, little research has been made on the luxury market. Moreover, studies on the impact of brand extensions have been limited to explicit measurement methods. Therefore, the aim of this study is to provide new insights by focussing on the change of consumers’ brand perception related to downgrading and upgrading brand extensions strategies in the luxury market based on an implicit association test (IAT). In this exploratory study context of examining the spontaneous reaction time with reference to the luxury concept by confronting respondents with adequate verbal brand extension stimuli, a ST-IAT was considered for the empirical tests of these hypotheses. The study results give evidence that consumers’ perception of an upgrading or downgrading strategy of a brand varies in accordance to these hypotheses. Hence, the reaction time of the H&M subjects decreased after having read the upgrading stimulus whereby, in the case of Karl Lagerfeld, the ST-IAT reaction times showed that the downgrading information resulted in a weaker association of Karl Lagerfeld with luxury. The use of implicit measurement methods is becoming increasingly important for assessing consumer reaction to the new product line. Particularly, when luxury brands apply a downgrading strategy, the risks of possible damages to the core brand are much higher than in the case of an upgrade of a basic brand to the luxury or premium segment. © 2013, Emerald Group Publishing Limited
Heide Lauter-Bufe, Die Geschichte des sikeliotisch-korinthischen Kapitells
Creators: name: Gans, Ulrich-Walter
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Heide Lauter-Bufe, Die Geschichte des sikeliotisch-korinthischen Kapitells. Der sogenannte italisch-republikanische Typus. Verlag Philipp von Zabern, Mainz 1987. VII, 105 Seiten mit 3 Abbildungen, 48 Tafeln mit 171 Fotos
description: Bonner Jahrbücher, Bd. 190.1990(1991): Bonner Jahrbücher
‘The contempt and reproach of our nation’? Wardship in England and Wales, 1617–1624
Creators: name: Strange, Diane Elizabeth
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: This thesis evokes the Jacobean Court of Wards and Liveries as historians have never seen it: as a means of redress for individuals from a diverse range of economic backgrounds who approached the court with a variety of difficulties and anxieties that all had one common thread. They were occasioned by royal wardship. Using the vast but neglected WARD collection at The National Archives, this thesis investigates how wardship affected individuals during the later Jacobean period. In so doing it tests the court’s long-held reputation as a mercenary revenue-generator that evinced little concern for the fortunes of who fell within its remit. A set of Instructions was issued to the court by James I in 1611, designed to address accusations of ill usage. The thesis provides evidence that the court observed these directives and worked to mitigate its unsavoury reputation. It further demonstrates that, contrary to current understanding, the court had a wide social spread, drawing over a third of its litigants from those below the gentry. Developing this theme, it also elucidates the importance of the court for women, thereby adding to the ongoing debate about female agency and women’s interaction with the law in early modern England. Additionally, the thesis investigates the remit and significance of an almost wholly overlooked institution, Prince Charles’s Court of Wards and Liveries, established in 1619 to handle tenures belonging to the prince as Duke of Cornwall and Earl of Chester. It establishes that the court presented new and difficult challenges to those holding land in chief of the prince, while demonstrating the importance of the court as a training-ground for Charles and showing how the court’s drive for revenue generation can be seen as a precursor of the Personal Rule (1629–1640).
Desalinization of a salt-affected soil in plots of various sizes under two modes of water application
Creators: name: Dahiya, I.S.
name: Grewal, K.S.
Publisher: name: Cambridge : Cambridge University Press
Year: 1985
Subjects: subject: Salt-affected Soil
subject: Permeable Soil
subject: Sandy Loam Soil
subject: Leaching
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Leaching in a salt-affected, permeable, sandy loam soil was evaluated under continuous and intermittent ponding conditions in 2x2m (S1), 4x4m (S2) and 6x6m (S3) plots. The soil contained large amounts of soluble salts throughout the profile to the water table, chiefly chlorides and sulphates of sodium, calcium and magnesium. The leaching curves did not differ significantly between S1S2and S3plots under continuous ponding but did under intermittent ponding. The leaching efficiency decreased sharply with increased plot size. The leaching efficiency in S1plots was significantly greater with intermittent than with continuous ponding, but the reverse was true in S3 plots. The displacement of the resident soil solution in S2plots under intermittent ponding was nearly piston-like. With increased plot size, it tended to deviate from this behaviour. The leaching curves from S3 plots (this size being reasonable in farmers’ fields) were compared with those obtained from numerical solution of a simplified steady-state salt transport model. The model also included a source term, solubility rate constant, for the slightly soluble salts present in the experimental soil. The pore water velocity was estimated from field capacity and time-averaged infiltration rate. The effective dispersion coefficient and solubility rate constant were estimated by a least-squares minimization technique. A reasonably good agreement was obtained between simulated and experimental leaching curves. For practical purposes, this simple model may be adequate to predict leaching in salt-affected soils similar to the one under consideration. © 1985, Cambridge University Press. All rights reserved.
Warm water deuterium fractionation in IRAS 16293-2422 - The high-resolution ALMA and SMA view
Creators: name: Persson, Magnus V.
name: Jørgensen, Jes K.
name: van Dishoeck, Ewine F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Measuring the water deuterium fractionation in the inner warm regions of low-mass protostars has so far been hampered by poor angular resolution obtainable with single-dish ground- and space-based telescopes. Observations of water isotopologues using (sub)millimeter wavelength interferometers have the potential to shed light on this matter. Observations toward IRAS 16293-2422 of the 5(3,2)-4(4,1) transition of H2-18O at 692.07914 GHz from Atacama Large Millimeter/submillimeter Array (ALMA) as well as the 3(1,3)-2(2,0) of H2-18O at 203.40752 GHz and the 3(1,2)-2(2,1) transition of HDO at 225.89672 GHz from the Submillimeter Array (SMA) are presented. The 692 GHz H2-18O line is seen toward both components of the binary protostar. Toward one of the components, "source B", the line is seen in absorption toward the continuum, slightly red-shifted from the systemic velocity, whereas emission is seen off-source at the systemic velocity. Toward the other component, "source A", the two HDO and H2-18O lines are detected as well with the SMA. From the H2-18O transitions the excitation temperature is estimated at 124 +/- 12 K. The calculated HDO/H2O ratio is (9.2 +/- 2.6)*10^(-4) - significantly lower than previous estimates in the warm gas close to the source. It is also lower by a factor of ~5 than the ratio deduced in the outer envelope. Our observations reveal the physical and chemical structure of water vapor close to the protostars on solar-system scales. The red-shifted absorption detected toward source B is indicative of infall. The excitation temperature is consistent with the picture of water ice evaporation close to the protostar. The low HDO/H2O ratio deduced here suggests that the differences between the inner regions of the protostars and the Earth's oceans and comets are smaller than previously thought.
description: Accepted for publication in Astronomy & Astrophysics
Nancy Gauthier und Jean-Charles Picard (Hrsg.), Topographie chrétienne des cités de la Gaule des origines au milieu du VIIIe siècle
Creators: name: Kaiser, Reinhold
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Nancy Gauthier und Jean-Charles Picard (Hrsg.), Topographie chrétienne des cités de la Gaule des origines au milieu du VIIIe siècle. Editions De Boccard, Paris 1986. Bd. 1-4.
description: Bonner Jahrbücher, Bd. 190.1990(1991): Bonner Jahrbücher
Frank Unruh, Das Bild des Imperium Romanum im Spiegel der Literatur an der Wende vom 2. zum 3. Jahrhundert n. Chr
Creators: name: Klein, Richard
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Frank Unruh, Das Bild des Imperium Romanum im Spiegel der Literatur an der Wende vom 2. zum 3. Jahrhundert n. Chr. Habelts Dissertationsdrucke, Reihe Alte Geschichte, Heft 29. Dr. Rudolf Habelt GmbH, Bonn 1991. 210 Seiten.
description: Bonner Jahrbücher, Bd. 192.1992(1993): Bonner Jahrbücher
Kinetic energy preserving and entropy stable finite volume schemes for compressible Euler and Navier-Stokes equations
Creators: name: Chandrashekar, Praveen
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Centered numerical fluxes can be constructed for compressible Euler equations which preserve kinetic energy in the semi-discrete finite volume scheme. The essential feature is that the momentum flux should be of the form $f^m_\jph = \tp_\jph + \avg{u}_\jph f^ρ_\jph$ where $\avg{u}_\jph = (u_j + u_{j+1})/2$ and $\tp_\jph, f^ρ_\jph$ are {\em any} consistent approximations to the pressure and the mass flux. This scheme thus leaves most terms in the numerical flux unspecified and various authors have used simple averaging. Here we enforce approximate or exact entropy consistency which leads to a unique choice of all the terms in the numerical fluxes. As a consequence novel entropy conservative flux that also preserves kinetic energy for the semi-discrete finite volume scheme has been proposed. These fluxes are centered and some dissipation has to be added if shocks are present or if the mesh is coarse. We construct scalar artificial dissipation terms which are kinetic energy stable and satisfy approximate/exact entropy condition. Secondly, we use entropy- variable based matrix dissipation flux which leads to kinetic energy and entropy stable schemes. These schemes are shown to be free of entropy violating solutions unlike the original Roe scheme. For hypersonic flows a blended scheme is proposed which gives carbuncle free solutions for blunt body flows. Numerical results for Euler and Navier-Stokes equations are presented to demonstrate the performance of the different schemes.
Stochastic Heating of Ions in a Tokamak by RF Power
Creators: name: Karney, Charles F. F.
Publisher: name: Zenodo
Year: 1977
Subjects: plasma physics
stochastic processes
radio-frequency heating
nuclear fusion

description: The nonlinear interaction of ions in a plasma with waves excited by RF power near the lower hybrid frequency is considered. The object of this study is to evaluate such an interaction as a method of heating the ions in a tokamak. The problem is simplified by assuming the magnetic field, \(B_0\), to be uniform and the lower hybrid wave (whose frequency, \(\omega\), is much greater than the ion cyclotron frequency, \(\Omega_i\)) to be propagating perpendicular to the magnetic field. It is shown that trapping by the wave significantly increases the energy of the ions on a time scale of a few cyclotron periods. For longer times the motion in a certain region of velocity space becomes stochastic for fields satisfying \(E/B_0 > \frac14(\Omega_i/\omega)^{1/3}\omega/k\) (\(k\) is the wavenumber of the wave). The stochastic region of velocity space extends from a lower limit given by \(\omega/k - \sqrt{qE/mk}\) (\(q\) and \(m\) are the ionic charge and mass, respectively) where the ion dynamics are determined by trapping to an upper limit which scales as \(E^{2/3}\). The stochasticity condition is independent of how close \(\omega\) is to a cyclotron harmonic. These results are extended to the case of propagation at an oblique angle to the magnetic field and to the case of inhomogeneous magnetic field. It is shown that stochastic ion heating can be an efficient method for supplementary heating of the ions in a tokamak.
Rheinisches Amt für Bodendenkmalpflege. Ausgrabungen, Funde und Befunde 1990
Creators: name: Beyer, Brigitte
name: Jürgens, Antonius
Publisher: name: Bonner Jahrbücher
Year: 2019

description: -
description: Bonner Jahrbücher, Bd. 192.1992(1993): Bonner Jahrbücher
Analytical and numerical study of uncorrelated disorder on a honeycomb lattice
Creators: name: Lee, Kean Loon
name: Grémaud, Benoît
name: Miniatura, Christian
name: Delande, Dominique
Publisher: name: arXiv
Year: 2012
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a tight-binding model on the regular honeycomb lattice with uncorrelated on-site disorder. We use two independent methods (recursive Green's function and self-consistent Born approximation) to extract the scattering mean free path, the scattering mean free time, the density of states and the localization length as a function of the disorder strength. The two methods give excellent quantitative agreement for these single-particle properties. Furthermore, a finite-size scaling analysis reveals that all localization lengths for different lattice sizes and different energies (including the energy at the Dirac points) collapse onto a single curve, in agreement with the one-parameter scaling theory of localization. The predictions of the self-consistent theory of localization however fail to quantitatively reproduce these numerically-extracted localization lengths.
description: 19 pages, 25 figures
Archäologischer Park/Regionalmuseum Xanten. Bericht über die Tätigkeit in den Jahren 1990 und 1991
Creators: name: Redaktion, Die
Publisher: name: Bonner Jahrbücher
Year: 2019

description: -
description: Bonner Jahrbücher, Bd. 192.1992(1993): Bonner Jahrbücher
Energy-resolved detection of single infrared photons with λ = 8 μm using a superconducting microbolometer
Creators: name: Karasik, Boris S.
name: Pereverzev, Sergey V.
name: Soibel, Alexander
name: Santavicca, Daniel F.
name: Prober, Daniel E.
name: Olaya, David
name: Gershenson, Michael E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We report on the detection of single photons with λ = 8 μm using a superconducting hot-electron microbolometer. The sensing element is a titanium transition-edge sensor with a volume ~ 0.1 μm^3 fabricated on a silicon substrate. Poisson photon counting statistics including simultaneous detection of 3 photons was observed. The width of the photon-number peaks was 0.11 eV, 70% of the photon energy, at 50-100 mK. This achieved energy resolution is one of the best figures reported so far for superconducting devices. Such devices can be suitable for single photon calorimetric spectroscopy throughout the mid-infrared and even the far-infrared.
description: 17 pages, 5 figures. Accepted to Applied Physics Letters
Recovering an homogeneous polynomial from moments of its level set
Creators: name: Lasserre, Jean
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Let $K:={x: g(x)\leq 1}$ be the compact sub-level set of some homogeneous polynomial $g$. Assume that the only knowledge about $K$ is the degree of $g$ as well as the moments of the Lebesgue measure on $K$ up to order 2d. Then the vector of coefficients of $g$ is solution of a simple linear system whose associated matrix is nonsingular. In other words, the moments up to order 2d of the Lebesgue measure on $K$ encode all information on the homogeneous polynomial $g$ that defines $K$ (in fact, only moments of order $d$ and 2d are needed).
Effects of surface geometry on light exposure, photoacclimation and photosynthetic energy acquisition in zooxanthellate corals
Creators: name: López-Londoño, Tomás
name: Enríquez, Susana
name: Iglesias-Prieto, Roberto
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 310907
subject: Animal physiological ecology
classificationCode: 310908
subject: Animal physiology - biophysics
classificationCode: 310911
subject: Animal structure and function

description: Background: Symbiotic corals display a great array of morphologies, each of which has unique effects on light interception and the photosynthetic performance of in hospite zooxanthellae. Changes in light availability elicit photoacclimation responses to optimize the energy balances in primary producers, extensively documented for corals exposed to contrasting light regimes along depth gradients. Yet, response variation driven by coral colony geometry and its energetic implications on colonies with contrasting morphologies remain largely unknown. Methods: We assessed the effect of the inclination angle of coral surface on light availability, short- and long-term photoacclimation responses, and potential photosynthetic usable energy. Twenty coral fragments of the species Orbicella faveolata formed the basis for this experimental study. Coral fragments were evenly distributed across five inclination settings: 0° (horizontal), 25°, 45°, 65° and 90° (vertical). Results: Increasing surface inclination angle resulted in an order of magnitude reduction of light availability. The light gradient induced by surface geometry triggered photoacclimation responses comparable to those observed along depth gradients: changes in the quantum yield of photosystem II, photosynthetic parameters, and optical properties and pigmentation of the coral tissue. Differences in light availability and photoacclimation driven by surface inclination led to contrasting energetic performance.Discussion: Our study provides clear evidence that contrasting photoacclimatory responses, light climates and energy balances can occur within a single colony at a constant depth. Therefore, studying the entire coral colony and its metabolic gradients should be a research priority to enhance our understanding of colonial responses to environmental cues and the role of colony morphology and energetic economy on the vertical distribution of species and niche diversification in coral reefs.
Überwachungskapitalistische Biopolitik: Big Tech und die Regierung der Körper
Creators: name: Maschewski, Felix
name: Nosthoff, Anna-Verena
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: Big Tech
subject: Biopolitik
subject: Überwachungskapitalismus
subject: Pandemie
subject: Infrastrukturelle Macht
subject: Gesundheitswesen
subject: 320 Politikwissenschaft (Politik und Regierung)

description: Der Artikel analysiert den Einzug Big Techs (der Fokus liegt auf Apple und Alphabet) in den Gesundheitsmarkt und beschreibt in Anlehnung an Michel Foucault und Shoshana Zuboff das Konzept einer „überwachungskapitalistischen Biopolitik“. Ziel ist, die Ausweitung des „Datenextraktivismus“ im Gesundheitswesen und der Gesundheitsforschung machtkritisch einzuordnen und damit einen Trend in der digitalen Gesundheitsfürsorge zu problematisieren, der sich in den letzten Jahren und, wie wir zeigen, besonders während der Coronakrise beschleunigt und ausgefächert hat. Anhand wissenschaftlicher und kommerzieller Projekte sowie Kooperationen im Bereich public health wird deutlich, dass zeitgenössische Formen der Biopolitik keineswegs auf staatliche Regime beschränkt sind. Stattdessen sind sie zunehmend über private Technologieunternehmen vermittelt, die dabei nicht nur intime Verhaltens- und Vitaldaten akkumulieren, sondern – qua proprietärer Algorithmen – auch den Zugang zu diesen kontrollieren und schließlich ihren Einfluss in exklusive Services und Produkte überführen. Ein besonderer Akzent des Artikels liegt zudem auf der voranschreitenden Verbreitung sogenannter Wearable-Technologien (Smartwatches etc.), über die sich nicht nur die herausgehobene Marktposition der Konzerne, sondern – in der Entwicklung von einem „quantifizierten Selbst“ zu einem „quantifizierten Kollektiv“ – auch ihre epistemische bzw. „infrastrukturelle Macht“ konkretisiert. Entgegen einer einseitig repressiven Perspektive auf biopolitische Praxen zeigen wir schließlich Ansätze einer Demokratisierung „überwachungskapitalistischer Biopolitik“ auf. Hierbei heben wir vier Topoi hervor, die von zentraler Bedeutung sind: Privatsphäre bzw. individuelle Souveränität, demokratische Deliberation, Pluralismus und epistemische Gleichheit.
Architecture and Civilization: A Sketch
Creators: name: Gleichmann, Peter R.
Publisher: name: London : SAGE Publications Ltd.
Year: 1992
Subjects: subject: architecture
subject: civilization
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: Building houses and cities is a part of our civilization. People are increasingly creating their own environment. To the extent they imbue that environment with meaning we have traditionally called it „architecture“ in many languages. The development of architecture is a characteristic subdivision of civilizational activities. The possible conditions for a relative autonomy of architectonic events can be determined from the overall framework of a civilizational process. We find the scholarly knowledge of these connections in the theories of civilization.
A Self-Consistent Model of the Circumstellar Debris Created by a Giant Hypervelocity Impact in the HD172555 System
Creators: name: Johnson, B. C.
name: Lisse, C. M.
name: Chen, C. H.
name: Melosh, H. J.
name: Wyatt, M. C.
name: Thebault, P.
name: Henning, W. G.
name: Gaidos, E.
name: Elkins-Tanton, L. T.
name: Bridges, J. C.
name: Morlok, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Spectral modeling of the large infrared excess in the Spitzer IRS spectra of HD 172555 suggests that there is more than 10^19 kg of sub-micron dust in the system. Using physical arguments and constraints from observations, we rule out the possibility of the infrared excess being created by a magma ocean planet or a circumplanetary disk or torus. We show that the infrared excess is consistent with a circumstellar debris disk or torus, located at approximately 6 AU, that was created by a planetary scale hypervelocity impact. We find that radiation pressure should remove submicron dust from the debris disk in less than one year. However, the system's mid-infrared photometric flux, dominated by submicron grains, has been stable within 4 percent over the last 27 years, from IRAS (1983) to WISE (2010). Our new spectral modeling work and calculations of the radiation pressure on fine dust in HD 172555 provide a self-consistent explanation for this apparent contradiction. We also explore the unconfirmed claim that 10^47 molecules of SiO vapor are needed to explain an emission feature at 8 um in the Spitzer IRS spectrum of HD 172555. We find that unless there are 10^48 atoms or 0.05 Earth masses of atomic Si and O vapor in the system, SiO vapor should be destroyed by photo-dissociation in less than 0.2 years. We argue that a second plausible explanation for the 8 um feature can be emission from solid SiO, which naturally occurs in submicron silicate "smokes" created by quickly condensing vaporized silicate.
description: Accepted to the Astrophysical Journal
Application of adaptive interim analysis in pharmacology
Creators: name: Hothorn, Ludwig A.
name: Martin, Ullrich
Publisher: name: London : SAGE Publications Ltd.
Year: 1997
Subjects: subject: Interim analysis
subject: Pharmacological studies
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: A Drug Information Association Workshop on “Statistical Methodology on Non-Clinical and Toxicological Studies” was held March 25–27, 1996. The purpose of this meeting was to discuss the appropriateness of current and new biostatistical methods in this field of drug development. This paper describes the application of adaptive interim analysis in pharmacological studies. Bauer and Köhne (1) published a two-step approach in the case of unknown a priori information. This approach is now widely used for clinical trails. Here, the advantages of use in some pharmacological studies will be discussed. © 1997, Drug Information Association. All rights reserved.
RISIS policymakers sessions: How to monitor and analyze research careers to inform policy making in the European Research AREA
Creators: name: Reale, Emanuela
name: Canibano, Carolina
name: Capezzuto, Dario
name: Stahlschmidt, Stephan
name: Iversen, Eric James
name: Ion, Tudor
name: Galindo-Rueda, Fernando
name: Widany, Sarah
Publisher: name: Zenodo
Year: 2023
Subjects: Research careers
Monitoring
Doctoral Degree and Career Dataset
RISIS datasets

description: The 13th RISIS Policymakers Session, a crucial event focused on monitoring and analyzing research careers to guide policy making in the European Research Area, took place in Brussels on June 8th, 2023 in HYBRID FORMAT. The event aimed to bring together policymakers, researchers, and professionals from various fields to discuss the challenges and opportunities in understanding and supporting research careers. By exploring frameworks and strategies for data collection, the session provided valuable insights into shaping effective policies that foster research excellence. The Policymakers Session explored various aspects related to research careers and changing frameworks. It started with an introduction by Emanuela Reale, Director of IRCrES, CNR & Member of RISIS Governing Board, providing an overview of the RISIS projects and infrastructure. The first session, titled “Research Careers and Changing Frameworks”, featured presentations by Carolina Cañibano from CSIC, who discussed the conceptual framework for studying science research careers, and Dario Capezzuto from the European Commission, DG RTD, R&I actors and research careers who delved into the scenario of research careers in Europe. The second session, “Monitoring Research Careers,” covered topics such as data collection strategies and their combination in RISIS2, presented by Stephan Stahlschmidt from DZHW, and the development of the Doctoral Degree and Career Pilot Dataset (DDC), presented by Eric Iversen from NIFU. Tudor Ion from the European Commission, DG RTD, and Fernando Galindo-Rueda from the OECD discussed monitoring research careers through a Research and Innovation Careers Observatory. In the afternoon a presentations on “The DocEnhance Career-Tracking Survey of Doctorate Holders” by Julia Boman from the European Science Foundation and “The German National Academics Panel Study (NACAPS)” by Sarah Widany from DZHW. The event ended with a final open debate.
description: Video of discussion: https://www.youtube.com/watch?v=gOrro7qlZOU
An etched multilayer as a dispersive element in a curved-crystal spectrometer: implementation and performance
Creators: name: Jonnard, Philippe
name: Guen, Karine Le
name: André, Jean-Michel
name: Coudevylle, Jean-René
name: Isac, Nathalie
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Etched multilayers obtained by forming a laminar grating pattern within interferential multilayer mirrors are used in the soft x-ray range to improve the spectral resolution of wavelength dispersive spectrometers equipped with periodic multilayers. We describe the fabrication process of such an etched multilayer dispersive element, its characterization through reflectivity measurement and simulations, and its implementation in a high-resolution Johann-type spectrometer. The specially designed patterning of a Mo/B4C multilayer is found fruitful in the range of the C K emission as the diffraction pattern narrows by a factor 4 with respect to the non-etched structure. This dispersive element with an improved spectral resolution was successfully implemented for electronic structure study with an improved spectral resolution by x-ray emission spectroscopy. As first results we present the distinction between the chemical states of carbon atoms in various compounds, such as graphite, SiC and B4C, by the different shape of their C K emission band.
description: 12 pages. Published in X-ray Spectrom. 41, 308 (2012)
Animals in the administrative zoo: Organizational change and agency autonomy in Germany
Creators: name: Bach, T.
name: Jann, W.
Publisher: name: London : SAGE Publications Ltd.
Year: 2010
Subjects: subject: administrative organization and structures
subject: central administration
subject: control
subject: modernization
subject: public sector reform
subject: regulation
subject: administrative framework
subject: administrative reform
subject: autonomy
subject: bureaucracy
subject: federal system
subject: governance approach
subject: organizational change
subject: political geography
subject: public sector
subject: regulatory framework
subject: Germany
subject: Animalia
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::350 | Öffentliche Verwaltung

description: Although Germany does not figure among the 'forerunners' of managerial reforms of the public sector, it has a long tradition of agencies and non-departmental bodies at the federal level. Over time, the federal administration has developed into a highly differentiated 'administrative zoo' with a large number of species, questioning the image of a well-ordered German bureaucracy. The article addresses organizational changes among non-ministerial agencies during the past 20 years and ministry-agency relations, drawing on data from a comprehensive survey of the federal administration. The structural changes we observe are neither comprehensive nor planned; they are much more evolutionary than revolutionary, driven by sectoral policies and not by any overall agency policy, supported more by regulatory than by managerial reforms, and most of the changes are horizontal mergers or successions of existing organizations, while we find almost no evidence for hiving-off from ministries to agencies. At the same time, federal agencies report a lot of bureaucratic discretion, whereas they perceive substantial levels of 'red tape' due to administrative regulations. We also find that traditional, hierarchical modes of ministerial oversight are still dominating; only few agencies have performance agreements with measurable goals. © The Author(s) 2010.
Policy Brief, Issue 13/How to monitor and analyse the labour-market placement of trained PhDs using linked datasets
Creators: name: Iversen, Eric James
Publisher: name: Zenodo
Year: 2023
Subjects: DDC dataset
Risis Core Facility
PhD careers
PhD production

description: The numbers of doctorates awarded in OECD countries have increased dramatically since the mid-1990s. PhD production is currently outpacing the rate needed simply to replace research and teaching competencies in the academic sector. In consequence, a substantial and apparently growing share of PhDs is percolating into other sectors of the economy. This trend is not new. “The perennial shortage-surplus debate” has long roots[3]. Looking back, it stands out as a characterizing feature of the formative knowledge economy. Looking ahead, its importance is likely to continue to grow, with manifold implications both for education and innovation policy. A product of the RISIS2 project, the Doctoral Degree and Career Dataset (DDC) is designed to inform ongoing policymaking on these issues in Europe. Three aims are central: to take stock of PhD production on a year-to-year basis for a wide range of European countries to identify the proportion that flows into other, non-academic sectors, and to build the lens on appropriate scientific framework that appreciates the long-term returns to society of its investment into PhD production in terms of new economic activities and innovation in the economy. Thus, the DDC aims at complementing ongoing activities at the national and international levels (e.g., CDH) and at providing important added functionality.
Generalizing the rotation interval to vertex maps on graphs
Creators: name: Bernhardt, Chris
name: Staecker, P. Christopher
Publisher: name: arXiv
Year: 2012
Subjects: subject: Dynamical Systems (math.DS)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 37E15, 37E25, 37E45

description: Graph maps that are homotopic to the identity and that permute the vertices are studied. Given a periodic point for such a map, a {\em rotation element} is defined in terms of the fundamental group. A number of results are proved about the rotation elements associated to periodic points in a given edge of the graph. Most of the results show that the existence of two periodic points with certain rotation elements will imply an infinite family of other periodic points with related rotation elements. These results for periodic points can be considered as generalizations of the rotation interval for degree one maps of the circle.