cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Vom Burgberg zur Donau: neue Untersuchungen zur Heuneburg (2008-2012)
Creators: name: Krausse, Dirk
name: Fernández-Götz, Manuel
name: Steffen, Christoph
name: Wahl, Joachim
name: Otte-Scheschkewitz, Petra
Publisher: name: Archäologisches Korrespondenzblatt
Year: 2020

description: Im Verlauf der letzten zehn Jahre hat sich das Bild der späthallstattzeitlichen Heuneburg grundlegend verändert. Während sich die Forschungen des DFG-Schwerpunktprogramms »Frühkeltische Fürstensitze« auf den Bereich der Vorburg und die Außensiedlung konzentrierten, rückte seit 2008 der eigentliche Burgberg wieder in den Mittelpunkt des Interesses. Gleichzeitig konnten auf der Ostterrasse und im Bereich des Donautals unmittelbar unterhalb der Heuneburg aufsehenerregende Entdeckungen gemacht werden, die vollkommen neue, unerwartete Fragen zu Aspekten wie Kulthandlungen, Bestattungswesen und Chronologie aufwerfen. Im Rahmen des vorliegenden Beitrages sollen die ersten Ergebnisse von fünf Jahren Feldforschungen zwischen Burgberg und Donau vorgestellt werden, von den Grabungschnitten auf dem Plateau bis hin zu den menschlichen Skelettfunden von der Ostterrasse und den frühlatènezeitlichen Fibeln aus der Donau.
description: Archäologisches Korrespondenzblatt, Bd. 43 Nr. 2 (2013): Archäologisches Korrespondenzblatt
Zum Verhältnis von Nachhaltigkeit, Gerechtigkeit und Bildung
Creators: name: Deuschle, Jürgen
name: Sonnberger, Marco
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: Gerechtigkeit ist eine der Voraussetzungen für Nachhaltigkeit. Eine der wichtigsten Aufgaben der Bildung ist deshalb die Vermittlung von Gerechtigkeitsstandards. Was aber ist Gerechtigkeit? Unter Bezugnahme auf philosophische Betrachtungen sowie auf Forschungsergebnisse aus Soziologie, Sozialpsychologie und Neurobiologie kommt die vorliegende Untersuchung zu dem Ergebnis, das Gerechtigkeit eine Synthese aus Verstand, Vernunft und Gefühl ist, die sich auf die Freiheitsbeschränkung individuellen Handelns bezieht. Während uns Verstand und Vernunft abstrakt bleiben, geht der eigentliche Handlungsimpuls vom Gefühl aus. In den aktuellen Bildungszielen spielen Gefühle als motivationale Grundlage gerechten Handelns praktisch keine Rolle. Dem gegenüber dominiert die Ausbildung instrumentellen Verstandes. Welche fatalen Folgen eine Überbetonung der Verstandesbildung gegenüber Vernunft und Gefühl hat, zeigen die Arbeiten der Aufklärungskritik. Die Verfasser kommen zu dem Schluss, dass Bildung, die dem Leitbild der Nachhaltigkeit gerecht wird, verstärkt auf Vernunft und Gefühl setzen sollte

“If we do not act, millions of people will suffer.” The relationship between sustainability, justice and education. Justice is a precondition for sustainability. Therefore one of the most important tasks of education is the communication of standards of justice. But what is meant by justice? With regard to philosophical reflections as well as results of the latest research in the fields of sociology, social psychology and neurobiology, this paper concludes that justice is a synthesis of understanding, reason and compassion. This synthesis refers to the restriction of freedom of individual action. Whereas our understanding and reason remains abstract, the real impulse of action comes from compassion. Compassion as a motivational basis plays no role in current educational goals. In contrast education is dominated by instrumental understanding. The fatal consequences of overemphasizing education of understanding versus reason and compassion can be seen in works on the criticism of enlightenment. The authors of this paper conclude that education, which meets the model of sustainability, must emphasize reason and compassion.
description: JSSE - Journal of Social Science Education, 3-2009: Nachhaltigkeit und fachdidaktische Herausforderungen/Sustainability
Zur nachhaltig ausgerichteten Dekonstruktion des wirtschafts-didaktischen Diskurses über ökonomische Kategoriensysteme
Creators: name: Skrzipietz, Frank
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: Der Beitrag reflektiert am Beispiel wirtschaftskategorialer Systeme den Status quo bezogen auf die Implementierung des normativen Nachhaltigkeitsgedankens in curriculare Strukturen und fachdidaktische Konzepte ökonomischer Bildung. Dazu wird die These entwickelt, dass eine einseitig auf neoklassische Kategorien ausgerichtete Wirtschaftsdidaktik eine nur unzureichend fundierte Plattform darstellt, um wirtschafts- und nachhaltigkeitsbezogene Probleme angemessen diskutieren, bearbeiteten und lösen zu können. Es wird gezeigt, dass die im Modus von wirtschaftkategorialen Struktureinsichten angebotene Objektseite ökonomischer Bildung zu eng angelehnt ist an die Modelle der neoklassisch geprägten Wissenschaftssystematik. Es bedarf hier nachdrücklich einer Erweiterung der an den Logiken neoklassischer Modellierungen orientierten stoffkategorialen Systeme um soziale und ökologische Faktoren bzw. um Kategorien aus dem Nachhaltigkeitsdiskurs, wie z.B. Vernetzung, Gerechtigkeit, Globalität, Zukunft, Kommunikation und Partizipation. Als Grundlage für die Entwicklung wirtschaftskategorialer Systeme und zur fachwissenschaftlichen Fundierung curricularer Konstruktionen ökonomischer Bildung im Sinne der Nachhaltigkeitsidee wird ein interdisziplinärer Zugang sowie ein Rekurs auf alternative ökonomische Referenztheorien bzw. -modelle empfohlen

The article reflects on the status quo with regard to the implementation of the normative sustainability-idea in curricular structures and didactical concepts of economic education using the example of economic-categorical systems. Accordingly, it is not appropriate to discuss and treat economical and sustainable problems through an economic didactic which is based upon neoclassical categories in biased way but to demonstrate that the economical categories intensively refer upon the models of neoclassical economy. Therefore an extension of neoclassical models towards social and ecological factors and categories of the sustainability-discourse respectively is required, e.g. integration, justice, globality, future, communication and participation. As a basis of the development of economic-categorical systems and the science-based foundation of curricular constructions of economic education in a sustainable sense an interdisciplinary access and a regress of alternative economic theories are recommended.
description: JSSE - Journal of Social Science Education, 3-2009: Nachhaltigkeit und fachdidaktische Herausforderungen/Sustainability
Vom Nachhaltigkeitsdiskurs zum hochschuldidaktischen Kriteriensatz
Creators: name: Greb, Ulrike
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: Als regulative Idee impliziert die „Nachhaltigkeitsidee“ eine Reihe geisteswissenschaftlicher Theoreme. Sie gilt daher als überkomplex und konnte bislang hochschuldidaktisch nicht systematisch transformiert wurden. Zur Rede stehen hier begriffliche Großprojekte wie Gerechtigkeit, Verantwortung, Partizipation, Retinität oder Globalität und Interkulturalität, die als Kristallisationspunkte der Nachhaltigkeitsidee die Grundlagentexte, Positionspapiere und Programme durchziehen. Im Anschluss an die heuristische Studie Globalität und Interkulturalität als integrale Bestandteile beruflicher Bildung für eine nachhaltige Entwicklung (GInE, www.ibw.uni-hamburg.de/GInE) wurde ein didaktisches Strukturgitter entworfen, das exemplarische Problemlagen und Dilemmata benennt, so wie Reflexionskategorien für die Hochschuldidaktik in der beruflichen Lehrerbildung zur Diskussion stellt

As a regulative concept, the idea of sustainability implies a number of theorems in the field of humanities. It is regarded as supercomplex and, thus, could not yet be systematically transformed in university didactics. Large scale conceptual terms such as justice, responsibility, participation, retinity, globality, and interculturality are at the core of the discussion – terms which run through basic texts, policy papers, and programmes as focal points of the idea of sustainability. With respect to the heuristic study Globality and Interculturality as Integral Elements of a Professional Education for a Sustainable Development (GInE, www.ibw.uni-hamburg.de/GInE), a didactic framework was designed which not only denotes exemplary problems and dilemmata but also puts up categories of reflection for a university didactics aiming at a professional teacher training.
description: JSSE - Journal of Social Science Education, 3-2009: Nachhaltigkeit und fachdidaktische Herausforderungen/Sustainability
Corporate Social Responsibility (CSR) nachhaltig im Unternehmen verankern. Eine Herausforderung an die Managementbildung
Creators: name: Schaltegger, Stefan
name: Petersen, Holger
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: Wenn Maßnahmen der unternehmerischen Verantwortung (CSR) über die generelle Ausprägung als Geisteshaltung oder als Öffentlichkeitsarbeit hinausgehen sollen, ist unternehmerisches Nachhaltigkeitsmanagement gefordert. Der zur Erreichung einer nachhaltigen Unternehmensentwicklung in der Regel notwendige organisatorische Wandel erfordert sowohl spezifische interdisziplinäre Managementkenntnisse als auch Fachkenntnisse zu unternehmerischer Nachhaltigkeit, die konventionelle betriebswirtschaftliche Studiengänge nicht bieten. Dieser Beitrag legt die Grundzüge des Studiengangkonzepts des weltweit ersten MBA Studiengangs zu Nachhaltigkeitsmanagement dar. Über die Vermittlung von Fachkenntnissen hinaus spielen sowohl generelle als auch spezifische Soft skills und die Gestaltungskompetenz für interdisziplinäre Projekte eine wesentliche Rolle

If corporate social responsibility (CSR) is to exceed the ambition of a general philosophy or to be more than PR, corporate sustainability management is required. The organizational change usually necessary to develop a sustainable organization requires specific interdisciplinary management knowledge as well as knowledge about corporate sustainability. Both are not provided by conventional management programmes. This paper discusses the basic study concept of the worldwide first MBA in sustainability management. Exceeding the teaching of factual knowledge, both, general as well as specific soft skills as well as the competence to organize and lead interdisciplinary projects play a crucial role.
description: JSSE - Journal of Social Science Education, 3-2009: Nachhaltigkeit und fachdidaktische Herausforderungen/Sustainability
Summands of theta divisors on Jacobians
Creators: name: Krämer, Thomas
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Jacobian variety
subject: theta divisor
subject: Gauss map
subject: characteristic cycle
subject: perverse sheaf
subject: Tannakian category
subject: 14K12: Subvarieties
subject: 14F10: Differentials and other special sheaves; D-modules; Bernstein-Sato ideals and polynomials
subject: 18D10: Monoidal categories (= multiplicative categories), symmetric monoidal categories, braided categories
subject: 510 Mathematik

description: This publication is with permission of the rights owner (Cambridge University Press) freely accessible.
description: We show that the only summands of the theta divisor on Jacobians of curves and on intermediate Jacobians of cubic threefolds are the powers of the curve and the Fano surface of lines on the threefold. The proof only uses the decomposition theorem for perverse sheaves, some representation theory and the notion of characteristic cycles.
Klima- und umweltbezogene Lernprozesse in partizipativen Produktentwicklungsverfahren: Möglichkeiten und Grenzen
Creators: name: Arnold, Marlen
name: Barth, Volker
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: Für erfolgreiche und nachhaltige Produktentwicklung reichen heute Marktbeobachtung und Kund/innenbefragungen alleine nicht mehr aus. Mit Verfahren zur partizipativen Produktentwicklung (PPE) können sowohl das kreative Potenzial von Nutzer/innen für die Produktentwicklung erschlossen als auch marktfähige nachhaltige Produkte entwickelt werden. Sie ermöglichen so aktives Nachhaltigkeitsmanagement. Am Beispiel des INNOCOPE-Pilotverfahrens wird diskutiert, wie nachhaltigkeitsbezogene Lernprozesse in PPE-Prozessen initiiert werden können und welche Faktoren dabei wesentlich sind. Insgesamt zeigt sich, dass vor allem die sich wiederholende, direkte und möglichst gleichberechtigte Interaktion von Unternehmensvertreter/innen und von Konsument/innen einen themenbezogenen Wissensaustausch und wechselseitige Lernprozesse ermöglicht. Dabei sind der inhaltliche Aufbau der Treffen und der zeitlich gestaffelte Einsatz von Lernmethoden wesentlich

Today, market observation and customer surveys alone do not suffice to develop successful and sustainable products. Methods of participatory product development (PPD) allow to open up the creative potential of users for product development, and to develop marketable sustainable products. Thereby, they support active sustainability management. Taking the INNOCOPE pilot process as an example, we discuss the possibilities and the relevant factors to initiate sustainability- and climate-related learning processes within PPD processes. Our findings indicate that repeated, direct and equitable interaction between company representatives and customers are fundamental for relevant knowledge exchange and mutual learning processes. Other key issues are the thematic structure of the meetings and the timing of learning methods.
description: JSSE - Journal of Social Science Education, 3-2009: Nachhaltigkeit und fachdidaktische Herausforderungen/Sustainability
»Triftigkeiten«? Überlegungen zu prähistorischer Viehwirtschaft als traditionellem Element wirtschaftlicher Subsistenz und Prosperität während der Bronzeund Eisenzeit Südwestdeutschlands
Creators: name: Löhlein, Wolfgang
Publisher: name: Archäologisches Korrespondenzblatt
Year: 2020

description: Im Zentrum dieses Beitrags steht die bronze- und eisenzeitliche Viehwirtschaft, die als Motor wirtschaftlicher Prosperität und sozialen Ansehens der bäuerlichen Gemeinschaften verstanden wird und in Form mobiler Weidehaltung überlokale Netzwerke hervorbrachte. Indizien für eine damit einhergehende Wirtschaftstopographie sind neben Daten aus bioarchäologischen und archäobotanischen Analysen archäologische Hinweise auf Hirtenstationen und Opferplätze. Einige jüngereisenzeitliche Markt- und Versammlungsorte zeigen, dass Vieh zu solchen Orten gebracht, verhandelt, dort geschlachtet oder zu bestimmten Anlässen verzehrt wurde. Bronze- und früheisenzeitliche Funde von Waagen belegen, dass die technischen und vor allem sozialen Voraussetzungen für die Abhaltung von Märkten bereits präkeltisch gegeben waren. Tiere, deren Fleisch sowie Milch, Käse oder Leder können deshalb in entsprechenden Distributionszentren oder auf metallzeitlichen Märkten verhandelt worden sein. Mit der wirtschaftlichen Rolle der Viehwirtschaft gehen politische Prozesse einher und geben Anlass für die Akkumulation sozialen Prestiges.
description: Archäologisches Korrespondenzblatt, Bd. 49 Nr. 1 (2019): Archäologisches Korrespondenzblatt
Die Bedeutung des Themas „Bahn“ für eine ökologische Nachhaltigskeitsbildung
Creators: name: Engartner, Tim
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: Die seit mehr als einem Jahrzehnt geführte Debatte über die Zukunft der Deutschen Bahn AG zeigt, dass das Themenfeld „Bahn“ zahlreiche Anknüpfungspunkte bietet, um verschiedene ökonomische Fragestellungen zu beleuchten – gerade auch im Kontext der ökologischen Nachhaltigkeitsbildung. Mit einer didaktisch und methodisch durchdachten Annäherung an das Themenfeld „Bahn“ kann dem gut begründeten, aber häufig unzureichend umgesetzten Postulat, Wissenschafts- und Schülerorientierung miteinander zu verbinden, Rechnung getragen werden. Denn die immense Bandbreite an Zugangs-, Erklärungs- und Interpretationsebenen erlaubt es nicht nur, das Umweltbewusstsein von Schüler(inne)n zu schärfen. Werden Anleitungen zum Fahrscheinkauf erstellt, Statistiken zu Verkehrsmarktanteilen ausgewertet und Schaubilder zu externen Verkehrskosten erörtert, können Kinder und Jugendliche auch motiviert werden, die Bahn als Transportmittel ihrer Wahl zu entdecken und somit einen nachhaltigen Beitrag zum Umwelt- und Klimaschutz zu leisten

More than a decade of debate about the future of Germany’s state-run rail company, Deutsche Bahn AG, has shown that the subject of “the railways” provides ample opportunity to discuss a whole range of economic issues, especially in the context of ecological sustainability. The desirable but often inadequately implemented goal of making science accessible to school students can be achieved through a didactically and methodologically well-planned approach, heightening students’ environmental awareness through the immense spectrum of perspectives, explanations and interpretations. And if instructions for buying tickets are prepared, statistics on transport market share analysed and graphics on the external costs of transport explored, children and young people can also be motivated to discover the railways as their preferred means of transport – a lasting contribution to environmental and climate protection.
description: JSSE - Journal of Social Science Education, 3-2009: Nachhaltigkeit und fachdidaktische Herausforderungen/Sustainability
Simulated Tempering and Magnetizing: An Application of Two-Dimensional Simulated Tempering to Two-Dimensional Ising Model and Its Crossover
Creators: name: Nagai, Tetsuro
name: Okamoto, Yuko
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We performed two-dimensional simulated tempering (ST) simulations of the two-dimensional Ising model with different lattice sizes in order to investigate the two-dimensional ST's applicability to dealing with phase transitions and to study the crossover of critical scaling behavior. The external field, as well as the temperature, was treated as a dynamical variable updated during the simulations. Thus, this simulation can be referred to as "Simulated Tempering and Magnetizing (STM)." We also performed the "Simulated Magnetizing" (SM) simulations, in which the external field was considered as a dynamical variable and temperature was not. As has been discussed by previous studies, the ST method is not always compatible with first-order phase transitions. This is also true in the magnetizing process. Flipping of the entire magnetization did not occur in the SM simulations under $T_\mathrm{c}$ in large lattice-size simulations. However, the phase changed through the high temperature region in the STM simulations. Thus, the dimensional extension let us eliminate the difficulty of the first-order phase transitions and study wide area of the phase space. We then discuss how frequently parameter-updating attempts should be made for optimal convergence. The results favor frequent attempts. We finally study the crossover behavior of the phase transitions with respect to the temperature and external field. The crossover behavior was clearly observed in the simulations in agreement with the theoretical implications.
description: 15 pages, (Revtex4-1), 23 figures, 1 video (link)
Non-Gaussian statistics and extreme waves in a nonlinear optical cavity
Creators: name: Montina, A.
name: Bortolozzo, U.
name: Residori, S.
name: Arecchi, F. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A unidirectional optical oscillator is built by using a liquid crystal light-valve that couples a pump beam with the modes of a nearly spherical cavity. For sufficiently high pump intensity, the cavity field presents a complex spatio-temporal dynamics, accompanied by the emission of extreme waves and large deviations from the Gaussian statistics. We identify a mechanism of spatial symmetry breaking, due to a hypercycle-type amplification through the nonlocal coupling of the cavity field.
Gesamtausgabe / Entire Issue
Creators: name: JSSE, Administrator
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: Kein Abstract vorhanden

No Abstract available
description: JSSE - Journal of Social Science Education, 3-2009: Nachhaltigkeit und fachdidaktische Herausforderungen/Sustainability
Randomly Stopped Nonlinear Fractional Birth Processes
Creators: name: Orsingher, Enzo
name: Polito, Federico
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We present and analyse the nonlinear classical pure birth process $\mathpzc{N} (t)$, $t>0$, and the fractional pure birth process $\mathpzc{N}^ν(t)$, $t>0$, subordinated to various random times, namely the first-passage time $T_t$ of the standard Brownian motion $B(t)$, $t>0$, the $α$-stable subordinator $\mathpzc{S}^α(t)$, $α\in (0,1)$, and others. For all of them we derive the state probability distribution $\hat{p}_k (t)$, $k \geq 1$ and, in some cases, we also present the corresponding governing differential equation. We also highlight interesting interpretations for both the subordinated classical birth process $\hat{\mathpzc{N}} (t)$, $t>0$, and its fractional counterpart $\hat{\mathpzc{N}}^ν(t)$, $t>0$ in terms of classical birth processes with random rates evaluated on a stretched or squashed time scale. Various types of compositions of the fractional pure birth process $\mathpzc{N}^ν(t)$ have been examined in the last part of the paper. In particular, the processes $\mathpzc{N}^ν(T_t)$, $\mathpzc{N}^ν(\mathpzc{S}^α(t))$, $\mathpzc{N}^ν(T_{2ν}(t))$, have been analysed, where $T_{2ν}(t)$, $t>0$, is a process related to fractional diffusion equations. Also the related process $\mathpzc{N}(\mathpzc{S}^α({T_{2ν}(t)}))$ is investigated and compared with $\mathpzc{N}(T_{2ν}(\mathpzc{S}^α(t))) = \mathpzc{N}^ν(\mathpzc{S}^α(t))$. As a byproduct of our analysis, some formulae relating Mittag--Leffler functions are obtained.
The Sensitivity of Convection Zone Depth to Stellar Abundances: An Absolute Stellar Abundance Scale from Asteroseismology
Creators: name: van Saders, Jennifer L.
name: Pinsonneault, Marc H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The base of the convection zone is a source of acoustic glitches in the asteroseismic frequency spectra of solar-like oscillators, allowing one to precisely measure the acoustic depth to the feature. We examine the sensitivity of the depth of the convection zone to mass, stellar abundances, and input physics, and in particular, the use of a measurement of the acoustic depth to the CZ as an atmosphere-independent, absolute measure of stellar metallicities. We find that for low mass stars on the main sequence with $0.4 M_{\odot} \le M \le 1.6 M_{\odot}$, the acoustic depth to the base of the convection zone, normalized by the acoustic depth to the center of the star, $τ_{cz,n}$, is both a strong function of mass, and varies at the 0.5-1% per 0.1 dex level in [Z/X], and is therefore also a sensitive probe of the composition. We estimate the theoretical uncertainties in the stellar models, and show that combined with reasonable observational uncertainties, we can expect measure the the metallicity to within 0.15 - 0.3 dex for solar-like stars. We discuss the applications of this work to rotational mixing, particularly in the context of the observed mid F star Li dip, and to distguishing between different mixtures of heavy elements.
description: 37 pages, 12 figures, 2 tables, submitted to ApJ. For a brief video explaining the key result of this paper, see http://www.youtube.com/user/OSUAstronomy
Werner Meyer-Barkhausen, Das große Jahrhundert kölnischer Kirchenbaukunst 1150 bis 1250
Creators: name: Bandmann, G.
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: Werner Meyer-Barkhausen, Das große Jahrhundert kölnischer Kirchenbaukunst 1150 bis 1250. Köln (Verlag E. A. Seemann) 1952. 116 Seiten Text mit 41 Abbildungen und 180 Abbildungen auf Tafeln.
description: Bonner Jahrbücher, Bd. 153 (1953): Bonner Jahrbücher des Vereins von Altertumsfreunden im Rheinlande und des Rheinischen Provinzialmuseums in Bonn
Subband structure of a two-dimensional electron gas formed at the polar surface of the strong spin-orbit perovskite KTaO$_3$
Creators: name: King, P. D. C.
name: He, R. H.
name: Eknapakul, T.
name: Buaphet, P.
name: Mo, S. -K.
name: Kaneko, Y.
name: Harashima, S.
name: Hikita, Y.
name: Bahramy, M. S.
name: Bell, C.
name: Hussain, Z.
name: Tokura, Y.
name: Shen, Z. -X.
name: Hwang, H. Y.
name: Baumberger, F.
name: Meevasana, W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate the formation of a two-dimensional electron gas (2DEG) at the $(100)$ surface of the $5d$ transition-metal oxide KTaO$_3$. From angle-resolved photoemission, we find that quantum confinement lifts the orbital degeneracy of the bulk band structure and leads to a 2DEG composed of ladders of subband states of both light and heavy carriers. Despite the strong spin-orbit coupling, our measurements provide a direct upper bound for potential Rashba spin splitting of only $Δ{k}_\parallel\sim\0.02$ Å$^{-1}$ at the Fermi level. The polar nature of the KTaO$_3(100)$ surface appears to help mediate formation of the 2DEG as compared to non-polar SrTiO$_3(100)$.
description: 5 pages, 3 figures
José M. Blázquez, Imagen y mito. Estudios sobre religiones mediterráneas e ibéricas
Creators: name: Schmidt, Karl Horst
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: José M. Blázquez, Imagen y mito. Estudios sobre religiones mediterráneas e ibéricas. Madrid, Ediciones Christiandad 1977. 529 Seiten, 167 Abbildungen.
description: Bonner Jahrbücher, Bd. 180.1980: Bonner Jahrbücher
Editorial
Creators: name: Hedtke, Reinhold
name: Zimenkova, Tatjana
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: The core question of this issue of the JSSE, “Sociology? Who Needs It?”, sounds rather radical and provocative. But it may simply mirror the real vanishing of sociological topics from civic education curricula in the past decades occurring at least in some European countries. At the same time, asking this question may hold high potentials of identification for all social scientists, teaching in schools, occupied with teacher training and developing conceptions for curricula of social science subjects and conceptions for school.
description: JSSE - Journal of Social Science Education, 4-2009: Sociology? Who needs it?
Modeling and Communicating Flexibility in Smart Grids Using Artificial Neural Networks as Surrogate Models
Creators: name: Förderer, Kevin Michael
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: Smart Grid
Demand Side Management
Demand Side Flexibility
Surrogate Modeling
Energy Management System
Artificial Neural Networks
Machine Learning

description: Increasing shares of renewable energies and the transition towards electric vehicles pose major challenges to the energy system. In order to tackle these in an economically sensible way, the flexibility of distributed energy resources (DERs), such as battery energy storage systems, combined heat and power plants, and heat pumps, needs to be exploited. Modeling and communicating this flexibility is a fundamental step when trying to achieve control over DERs. The literature proposes and makes use of many different approaches, not only for the exploitation itself, but also in terms of models. In the first step, this thesis presents an extensive literature review and a general framework for classifying exploitation approaches and the communicated models. Often, the employed models only apply to specific types of DERs, or the models are so abstract that they neglect constraints and only roughly outline the true flexibility. Surrogate models, which are learned from data, can pose as generic DER models and may potentially be trained in a fully automated process. In this thesis, the idea of encoding the flexibility of DERs into ANNs is systematically investigated. Based on the presented framework, a set of ANN-based surrogate modeling approaches is derived and outlined, of which some are only applicable for specific use cases. In order to establish a baseline for the approximation quality, one of the most versatile identified approaches is evaluated in order to assess how well a set of reference models is approximated. If this versatile model is able to capture the flexibility well, a more specific model can be expected to do so even better. The results show that simple DERs are very closely approximated, and for more complex DERs and combinations of multiple DERs, a high approximation quality can be achieved by introducing buffers. Additionally, the investigated approach has been tested in scheduling tasks for multiple different DERs, showing that it is indeed possible to use ANN-based surrogates for the flexibility of DERs to derive load schedules. Finally, the computational complexity of utilizing the different approaches for controlling DERs is compared.
S-Matrix for AdS from General Boundary QFT
Creators: name: Colosi, Daniele
name: Dohse, Max
name: Oeckl, Robert
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The General Boundary Formulation (GBF) is a new framework for studying quantum theories. After concise overviews of the GBF and Schrödinger-Feynman quantization we apply the GBF to resolve a well known problem on Anti-deSitter spacetime where due to the lack of temporally asymptotic free states the usual S-matrix cannot be defined. We construct a different type of S-matrix plus propagators for free and interacting real Klein-Gordon theory.
description: 4 pages, 5 figures, Proceedings of LOOPS'11 Madrid, to appear in IOP Journal of Physics: Conference Series (JPCS)
The Solar Flare Iron Abundance
Creators: name: Phillips, K. J. H.
name: Dennis, B. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The abundance of iron is measured from emission line complexes at 6.65 keV (Fe line) and 8 keV (Fe/Ni line) in {\em RHESSI} X-ray spectra during solar flares. Spectra during long-duration flares with steady declines were selected, with an isothermal assumption and improved data analysis methods over previous work. Two spectral fitting models give comparable results, viz. an iron abundance that is lower than previous coronal values but higher than photospheric values. In the preferred method, the estimated Fe abundance is $A({\rm Fe}) = 7.91 \pm 0.10$ (on a logarithmic scale, with $A({\rm H}) = 12$), or $2.6 \pm 0.6$ times the photospheric Fe abundance. Our estimate is based on a detailed analysis of 1,898 spectra taken during 20 flares. No variation from flare to flare is indicated. This argues for a fractionation mechanism similar to quiet-Sun plasma. The new value of $A({\rm Fe})$ has important implications for radiation loss curves, which are estimated.
description: Accepted by Astrophysical Journal
Social Theory: Who Needs It? A Didactic Substantiation of Social Theories in Lessons
Creators: name: Zurstrassen, Bettina
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: Social Theory; Conceptual Change; scientific propaedeutics; social orientation knowledge; analysis raster for social theories

description: Only marginal importance is attached to the analysis of social theories in textbooks for social science. Mostly, they are only taught in extracts, and the analysis of a text extract from a theory is seldom discussed in class. In particular, sociological theories are therefore only presented to the pupils in an abridged form. The didactic-methodical potential of social theories in the process of Conceptual Change – from the everyday theory to science-related theories – about aspects of social changes, the social order, or social actions, remains unused. This article deals with scientific, didactic and methodical questions on the use of social theories in social science lessons.
description: JSSE - Journal of Social Science Education, 4-2009: Sociology? Who needs it?
Beyond “Doom and Gloom” and “Saving the World”: On the Relevance of Sociology in Civic Education
Creators: name: Katunaric´, Vjeran
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: Sociology; civic education; classical sociologists; contemporary sociology; young citizens; young skeptics

description: In this article some tenets of classical and contemporary sociology are examined with reference to social problems that are also topical in civic education. The social problems are: social inequality, inter-communal conflicts, and democratic participation. A major obstacle in adopting sociological interpretations of the social problems to contemporary civic education lies in sociological reservations toward liberal democracy as a remedy to the social problems. More properly, some utopian (from radical to conservative) ramifications of the sociological analysis cannot actually be adopted in civic education. As a consequence, sociology is often distanced toward normative order and dominant forms of social power and practice of the actually existing societies, including liberal democracies. Thus, one can argue that sociology educates “young skeptics”, rather than “young citizens” as postulated in some national curricula of civic education. Still, sociology may serve in civic education as an abundant source of knowledge for unraveling prejudices and false forms of democracy in the contemporary society, and also for questioning some national solutions to pressing social problems. Also, as long as civic education has a tendency to idealize the actually existing forms of (liberal) democracy and thus avoiding major criticism of the social order, teaching sociology in secondary education in concurrence with CE would be necessary for the sake of establishing a comprehensive education on the contemporary society and citizenship.
description: JSSE - Journal of Social Science Education, 4-2009: Sociology? Who needs it?
One possible mechanism for massive neutron star supported by soft EOS
Creators: name: Wen, De-Hua
name: Yan, Jing
name: Liu, Xue-Mei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The recently discovery of a massive neutron star (PSR J1614-2230 of $1.97\pm0.04M_{\odot}$) rules out the soft equation of states (EOSs) such as those included hyperons or kaon condensates at high densities, while the nuclear theory or the terrestrial laboratory data prefer a soft EOS. Here we propose one possible mechanism to allow that the observed massive neutron star can be supported by a soft EOS, that is, if the the gravitational constant $G$ varies at super strong field, a soft EOS can support the massive neutron stars.
description: 5 pages, 3 figures
Learning Symbolic Models of Stochastic Domains
Creators: name: Kaelbling, L. P.
name: Pasula, H. M.
name: Zettlemoyer, L. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In this article, we work towards the goal of developing agents that can learn to act in complex worlds. We develop a probabilistic, relational planning rule representation that compactly models noisy, nondeterministic action effects, and show how such rules can be effectively learned. Through experiments in simple planning domains and a 3D simulated blocks world with realistic physics, we demonstrate that this learning algorithm allows agents to effectively model world dynamics.
A tidally distorted dwarf galaxy near NGC 4449
Creators: name: Rich, R. M.
name: Collins, M. L. M.
name: Black, C. M.
name: Longstaff, F. M.
name: Koch, A.
name: Benson, A.
name: Reitzel, D. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: NGC 4449 is a nearby Magellanic irregular starburst galaxy with a B-band absolute magnitude of -18 and a prominent, massive, intermediate-age nucleus at a distance from Earth of 3.8 megaparsecs. It is wreathed in an extraordinary neutral hydrogen (H I) complex, which includes rings, shells and a counter-rotating core, spanning 90 kiloparsecs. NGC 4449 is relatively isolated, although an interaction with its nearest known companion-the galaxy DDO 125, some 40 kpc to the south-has been proposed as being responsible for the complexity of its HI structure. Here we report the presence of a dwarf galaxy companion to NGC 4449, namely NGC 4449B. This companion has a V-band absolute magnitude of -13.4 and a half-light radius of 2.7 kpc, with a full extent of around 8 kpc. It is in a transient stage of tidal disruption, similar to that of the Sagittarius dwarf near the Milky Way. NGC 4449B exhibits a striking S-shaped morphology that has been predicted for disrupting galaxies but has hitherto been seen only in a dissolving globular cluster. We also detect an additional arc or disk ripple embedded in a two-component stellar halo, including a component extending twice as far as previously known, to about 20 kpc from the galaxy's centre.
description: Published in Nature, February 9, 2012. Nature, 482, 192-194 Published article available at http://www.nature.com/nature/journal/v482/n7384//full/nature10837.html
Jean-Marie Lassère, Vbique populus. Peuplement et mouvements de population dans l’Afrique romaine de la chute de Carthage à la fin de la dynastie des Sévères (146 a. C.-235 p. C.)
Creators: name: Gascou, Jacques
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: Jean-Marie Lassère, Vbique populus. Peuplement et mouvements de population dans l’Afrique romaine de la chute de Carthage à la fin de la dynastie des Sévères (146 a. C.-235 p. C.). Préface de M. Le Glay. Editions du Centre National de la Recherche Scientifique, Paris 1977, 715 pages.
description: Bonner Jahrbücher, Bd. 180.1980: Bonner Jahrbücher
Subconvexity and equidistribution of Heegner points in the level aspect
Creators: name: Liu, Sheng-Chi
name: Masri, Riad
name: Young, Matthew P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Let q be a prime and -D < -4 be an odd fundamental discriminant such that q splits in Q(\sqrt{-D}). For f a weight zero Hecke-Maass newform of level q and h the weight one theta series of level D corresponding to an ideal class group character of Q(\sqrt{-D}), we establish a hybrid subconvexity bound for L(f \times h,s) at the central point when q = D^η for 0 < η< 1. With this circle of ideas, we show that the Heegner points of level q and discriminant D become equidistributed, in a natural sense, as q, D become large with q < D^{1/20-\varepsilon}. Our approach to these problems is connected to estimating the L^2-restriction norm of a Maass form of large level when restricted to the collection of Heegner points. We furthermore establish bounds for quadratic twists of Hecke-Maass L-functions with simultaneously large level and large quadratic twist, and hybrid bounds for quadratic Dirichlet L-functions in certain ranges.
description: 24 pages, submitted for publication
The SAURON Project - XX. The Spitzer [3.6] - [4.5] colour in early-type galaxies: colours, colour gradients and inverted scaling relations
Creators: name: Peletier, Reynier F.
name: Kutdemir, Elif
name: van der Wolk, Guido
name: Falcon-Barroso, Jesus
name: Bacon, Roland
name: Bureau, Martin
name: Cappellari, Michele
name: Davies, Roger L.
name: de Zeeuw, P. Tim
name: Emsellem, Eric
name: Krajnovic, Davor
name: Kuntschner, Harald
name: McDermid, Richard M.
name: Sarzi, Marc
name: Scott, Nicholas
name: Shapiro, Kristen L.
name: Bosch, Remco C. E. van den
name: van de Ven, Glenn
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the [3.6] - [4.5] Spitzer-IRAC colour behaviour of the early-type galaxies of the SAURON survey, a representative sample of 48 nearby ellipticals and lenticulars. We investigate how this colour, which is unaffected by dust extinction, can be used to constrain the stellar populations in these galaxies. We find a tight relation between the [3.6]-[4.5] colour and effective velocity dispersion, a good mass-indicator in early-type galaxies. Contrary to other colours in the optical and near-infrared, we find that the colours become bluer for larger galaxies. The relations are tighter when using the colour inside r_e, rather than the much smaller r_e/8 aperture, due to the presence of young populations in the central regions. We also obtain strong correlations between the [3.6]-[4.5] colour and 3 strong absorption lines (H beta, Mg b and Fe 5015). Comparing our data with the models of Marigo et al., which show that more metal rich galaxies are bluer, we can explain our results in a way consistent with results from the optical, by stating that larger galaxies are more metal rich. The blueing is caused by a strong CO absorption band, whose line strength increases strongly with decreasing temperature and which covers a considerable fraction of the 4.5 micron filter. In galaxies that contain a compact radio source, the [3.6]-[4.5] colour is generally slightly redder than in the other galaxies, indicating small amounts of either hot dust, non-thermal emission, or young stars near the center. We find that the large majority of the galaxies show redder colours with increasing radius. abbreviated...
description: 28 pages, 20 figures, accepted for MNRAS, high resolution version available at http://www.astro.rug.nl/~peletier/Peletier_SauronXX.pdf
Brigitte Fischer, Les monnaies antiques d’Afrique du Nord trouvées en Gaule
Creators: name: Baldus, Hans Roland
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Rezension zu: Brigitte Fischer, Les monnaies antiques d’Afrique du Nord trouvées en Gaule. Gallia, Supplement 36. Centre National de la Recherche Scientifique, Paris 1978. 173 Seiten, Karten und zahlreiche Textabbildungen.
description: Bonner Jahrbücher, Bd. 180.1980: Bonner Jahrbücher
Fritz Ebhardt
Creators: name: Liessem, Udo
Publisher: name: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Year: 2020

description: -
description: Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege, Bd. 52 Nr. 1 (2011): Burgen und Schlösser - Zeitschrift für Burgenforschung und Denkmalpflege
Sociology, Basis for the Secondary-School Subject of Social Sciences
Creators: name: Meijs, Lieke
name: Need, Ariana
Publisher: name: sowi-online e.V., Bielefeld
Year: 2009
Subjects: -

description: This paper reformulates the question of ‘sociology, who needs it’ in two ways, The first question we address is that of the reason why the educational system itself did not come to sociology for help in their long quest for a clear-cut content of the subject. The second question is why sociology did not adopt the orphaned subject of social studies back in 1960. The answer to the first question lies in the vulnerability of a subject that is dependent for its continued existence on the political leanings of the day. This led to a new goal for the subject almost every decade: from social education in the sixties and social and political education in the seventies, to a focus on citizenship education in the nineties. Although the objective was renamed on several occasions, the prescriptive viewpoint is recognizable in each. This perspective is difficult to reconcile with a social science content. The answer to the second questions points towards Dutch social scientists with a strong focus on academic sociology and not for critical, policy or public sociology. This choice was also made in order to win the competition with psychologists and for the discipline to get rid of the poor image it had acquired in the 1960s. The new subject social sciences, with a strong focus on science made it possible for sociology to become the pillar of this new subject.
description: JSSE - Journal of Social Science Education, 4-2009: Sociology? Who needs it?
Dualities and the phase diagram of the $p$-clock model
Creators: name: Ortiz, G.
name: Cobanera, E.
name: Nussinov, Z.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A new "bond-algebraic" approach to duality transformations provides a very powerful technique to analyze elementary excitations in the classical two-dimensional XY and $p$-clock models. By combining duality and Peierls arguments, we establish the existence of non-Abelian symmetries, the phase structure, and transitions of these models, unveil the nature of their topological excitations, and explicitly show that a continuous U(1) symmetry emerges when $p \geq 5$. This latter symmetry is associated with the appearance of discrete vortices and Berezinskii-Kosterlitz-Thouless-type transitions. We derive a correlation inequality to prove that the intermediate phase, appearing for $p\geq 5$, is critical (massless) with decaying power-law correlations.
description: 48 pages, 5 figures. Submitted to Nuclear Physics B
A Stable, Accurate Methodology for High Mach Number, Strong Magnetic Field MHD Turbulence with Adaptive Mesh Refinement: Resolution and Refinement Studies
Creators: name: Li, Pak Shing
name: Martin, Daniel F.
name: Klein, Richard I.
name: McKee, Christopher F.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computational Physics (physics.comp-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Performing a stable, long duration simulation of driven MHD turbulence with a high thermal Mach number and a strong initial magnetic field is a challenge to high-order Godunov ideal MHD schemes because of the difficulty in guaranteeing positivity of the density and pressure. We have implemented a robust combination of reconstruction schemes, Riemann solvers, limiters, and Constrained Transport EMF averaging schemes that can meet this challenge, and using this strategy, we have developed a new Adaptive Mesh Refinement (AMR) MHD module of the ORION2 code. We investigate the effects of AMR on several statistical properties of a turbulent ideal MHD system with a thermal Mach number of 10 and a plasma $β_0$ of 0.1 as initial conditions; our code is shown to be stable for simulations with higher Mach numbers ($M_rms = 17.3$) and smaller plasma beta ($β_0 = 0.0067$) as well. Our results show that the quality of the turbulence simulation is generally related to the volume-averaged refinement. Our AMR simulations show that the turbulent dissipation coefficient for supersonic MHD turbulence is about 0.5, in agreement with unigrid simulations.
description: 22 pages, 13 figures, accepted by ApJ