cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dünenmonitoring bei Sturmflutereignissen
Creators: name: Koldrack, Nils
name: Bill, Ralf
name: Schweiger, Constantin
name: Kaehler, Christian
name: Fürst, Sebastian
name: Saathoff, Fokke
name: Jonas, Matthias
name: Miegel, Konrad
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2020
Subjects: subject: PADO
subject: Dünen
subject: Sturmflut
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: Das Forschungsvorhaben PADO (Prozesse und Auswirkungen von Dünendurchbrüchen an der deutschen Ostseeküste) hat es sich zur Aufgabe gemacht, wesentliche Erkenntnisse zur Dünendynamik und dem Verhalten von Dünen in Durchbruchsituationen zu generieren. Damit soll das Bemessungskonzept für Dünen und kombinierte Küstenschutzsysteme verbessert werden.Hierfür wurde ein für ein jährliches Sturmflutereignis bemessenes großmaßstäbliches Dünenbauwerk am Strand von Rostock Warnemünde errichtet. Das Bauwerk wurde durch ein auftretendes Hochwasser bis zum Versagen (Dünendurchbruch) belastet und dabei durch eine umfangreiche Instrumentierung überwacht. Mit einem 3D-Messkonzept konnte die Dünenoberfläche kontinuierlich vermessen und die stattgefundenen Prozesse, wie die Breschenbildung, erfasst werden. Die gewonnenen Daten dienen unter anderem als Grundlage für die Kalibrierung numerischer Modelle sowie für weiterführende Untersuchungen langfristiger Folgen eines Dünendurchbruchs auf das Hinterland. Hierbei wird das Hauptaugenmerk auf die damit verbundene Versalzung und den möglichen Aussüÿungsprozess gelegt. Darüber hinaus nden auf Basis der überschwemmten Gebiete sozioökonomische Auswertungen statt, bei denen technische, hydrologische und ökonomische Bewertungen der durch Dünen geschützten Küstenregionen durchgeführt werden.
Micromagnetic modelling of anisotropic damping in ferromagnet
Creators: name: Dvornik, Mykola
name: Vansteenkiste, Arne
name: Van Waeyenberge, Bartel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a numerical implementation of the Landau-Lifshitz-Baryakhtar theory, which dictates that the micromagnetic relaxation term obeys the symmetry of the magnetic crystal, i. e. replacing the single intrinsic damping constant with a tensor of corresponding symmetry. The effect of anisotropic relaxation is studied in thin saturated ferromagnetic disk and ellipse with and without uniaxial magneto-crystalline anisotropy. We investigate the angular dependency of the linewidth of magnonic resonances with respect to the given structure of the relaxation tensor. The simulations suggest that the anisotropy of the magnonic linewidth is determined by only two factors: the projection of the relaxation tensor onto the plane of precession and the ellipticity of the later.
description: 6 pages, 5 figures, submitted to PRB Rapid. Comm
Orientational order in concentrated suspensions of spherical microswimmers
Creators: name: Evans, Arthur A.
name: Ishikawa, Takuji
name: Yamaguchi, Takami
name: Lauga, Eric
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use numerical simulations to probe the dynamics of concentrated suspensions of spherical microswimmers interacting hydrodynamically. Previous work in the dilute limit predicted orientational instabilities of aligned suspensions for both pusher and puller swimmers, which we confirm computationally. Unlike previous work, we show that isotropic suspensions of spherical swimmers are also always unstable. Both types of initial conditions develop long-time polar order, of a nature which depends on the hydrodynamic signature of the swimmer but very weakly on the volume fraction up to very high volume fractions.
Ecology and pest status of Mussidia nigrivenella Ragonot (Lepidoptera: Pyralidae), a cob borer of maize in West Africa
Creators: name: Sétamou, Mamoudou
Publisher: name: Hannover : Universität Hannover
Year: 1999
Subjects: subject: Benin
subject: Biologische Schädlingsbekämpfung
subject: Körnermais
subject: Mussidia nigrivenella
subject: Wirtspflanzen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
title: „El pueblo canta en ellos y por ellos y con ellos.“ Nicaraguas ‚imagined culture‘ im Werk der cantautores Mejía Godoy. Interview mit Luis Enrique Mejía Godoy
Creators: name: Eser, Felicitas
Publisher: name: University Library Heidelberg
Year: 2015

description: The brothers Carlos and Luis Enrique Mejía Godoy are the most famous songwriters in Nicaragua and representatives of the musical movement Nueva Canción Latinoamericana. During the Sandinist Revolution and the Civil War they dedicated their songs to the resistance against Somoza’s dictatorship and the interventions from the USA. One of their main aims was to strengthen the Nicaraguan national identity. The Sandinist party FSLN also recognized very early that the promotion of culture should play a key role in the rise of the Nueva Nicaragua. But how can you strengthen the culture of a country which has been oppressed for centuries by the Spanish and British colonialism and afterwards by the neo-imperialism of the USA? Was constructing an ‘imagined culture’ according to the theory of the renowned cultural theorist Stuart Hall the only way? Or did they just have to wake up the old and ‘sleeping’ culture by retelling narratives, myths of origins, symbols and rituals? This article tries to answer some of these questions and focuses on the role of the two songwriters Carlos and Luis Enrique Mejía Godoy in this process. A historical and political overview of the Sandinist movement and the Nueva Nueva Cancíon Latinoamericana gives a necessary introduction to the following e-mail interview with Luis Enrique Mejía Godoy.
description: HeLix - Dossiers zur romanischen Literaturwissenschaft, Bd. 8 (2015): HeLix - Dossiers zur romanischen Literaturwissenschaft, Beginn und Erscheinungsfrequenz: Jahr: 2009, Ausgaben pro Band: 1, Bände pro Jahr: 2
Reconstructing cosmological initial conditions from galaxy peculiar velocities. II. The effect of observational errors
Creators: name: Doumler, Timur
name: Courtois, Helene
name: Gottloeber, Stefan
name: Hoffman, Yehuda
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The Reverse Zeldovich Approximation (RZA) is a reconstruction method which allows to estimate the cosmic displacement field from galaxy peculiar velocity data and to constrain initial conditions for cosmological simulations of the Local Universe. In this paper, we investigate the effect of different observational errors on the reconstruction quality of this method. For this, we build a set of mock catalogues from a cosmological simulation, varying different error sources like the galaxy distance measurement error (0 - 20%), the sparseness of the data points, and the maximum catalogue radius (3000 - 6000 km/s). We perform the RZA reconstruction of the initial conditions on these mock catalogues and compare with the actual initial conditions of the simulation. We also investigate the impact of the fact that only the radial part of the peculiar velocity is observationally accessible. We find that the sparseness of a dataset has the highest detrimental effect on RZA reconstruction quality. Observational distance errors also have a significant influence, but it is possible to compensate this relatively well with Wiener Filter reconstruction. We also investigate the effect of different object selection criteria and find that distance catalogues distributed randomly and homogeneously across the sky (such as spiral galaxies selected for the Tully-Fisher method) allow for a higher reconstruction quality than if when data is preferentially drawn from massive objects or dense environments (such as elliptical galaxies). We find that the error of estimating the initial conditions with RZA is always dominated by the inherent non-linearity of data observed at z=0 rather than by the combined effect of the observational errors. Even an extremely sparse dataset with high observational errors still leads to a good reconstruction of the initial conditions on a scale of about 5 Mpc/h.
description: Accepted for MNRAS 2012 december 12
Corylus avellana L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. Avellana L. Cat. 321. Bis1850m:obFully (Garns). Andere hoheStellen sind:Outre-Rhone, 1730m (Garns); Collombey- Monthey, 1600 m (Oberli); Törbel, 1500 m (Stehler). 'Var" glandulosa (Shuttlew.) Gremli - l: ObSalvan (Coquoz).- 3:ObRiddes(J.);obNendaz(J-).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Fast dynamics of H2O in hydrous aluminosilicate glasses studied with quasielastic neutron scattering
Creators: name: Indris, Sylvio
name: Heitjans, Paul
name: Behrens, Harald
name: Zorn, Reiner
name: Frick, Bernhard
Publisher: name: College Park, MD : American Physical Society
Year: 2005
Subjects: subject: aluminosilicate glass
subject: aluminum
subject: calcium
subject: cation
subject: glass
subject: hydroxyl group
subject: oxygen
subject: silicate
subject: sodium
subject: unclassified drug
subject: water
subject: article
subject: calculation
subject: chemical composition
subject: dissolution
subject: dynamics
subject: fast dynamics
subject: motion
subject: near infrared spectroscopy
subject: neutron scattering
subject: quasielastic neutron scattering
subject: rotation
subject: scattering function
subject: temperature
subject: water content
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We studied the dynamics of dissolved water in aluminosilicate glasses with the compositions NaAlSi3O8⋅0.3H2O, NaAlSi3O8⋅1.3H2O and Ca0.5AlSi3O8⋅1.3H2O using quasielastic neutron scattering. As shown by near-infrared spectroscopy on these samples, H2O molecules are the predominant hydrous species in the water-rich glasses whereas OH groups bound to tetrahedrally coordinated cations are predominant at low water contents. Backscattering and time-of-flight methods were combined to investigate motional correlation times in the range between 0.2ps and 2ns. For the water-rich glasses an elastic scan between 2K and 420K shows that the dynamical processes set in at lower temperatures in the Ca-bearing glass than in the Na-bearing glass. This is corroborated by the broadening of the inelastic spectra S(Q,ω). The shape of the scattering function S(Q,t) suggests a distribution of activation barriers for the motion of hydrous species in the disordered structure of the glass. The distribution is narrower and the average activation energy is smaller in the Ca-bearing glass than in the Na-bearing glass. No indication for dynamics of hydrous species was found at temperatures up to 520K in the water-poor glass NaAlSi3O8⋅0.3H2O containing dissolved water mainly in the form of OH groups. It is concluded that H2O molecules are the dynamic species in the above-mentioned time regime in the water-rich glasses. The dynamic process is probably a rotation of H2O molecules around their bisector axis. © 2005 The American Physical Society.
Unwinding relaxation dynamics of polymers
Creators: name: Walter, Jean-Charles
name: Baiesi, Marco
name: Barkema, Gerard
name: Carlon, Enrico
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The relaxation dynamics of a polymer wound around a fixed obstacle constitutes a fundamental instance of polymer with twist and torque and it is of relevance also for DNA denaturation dynamics. We investigate it by simulations and Langevin equation analysis. The latter predicts a relaxation time scaling as a power of the polymer length times a logarithmic correction related to the equilibrium fluctuations of the winding angle. The numerical data support this result and show that at short times the winding angle decreases as a power-law. This is also in agreement with the Langevin equation provided a winding-dependent friction is used, suggesting that such reduced description of the system captures the basic features of the problem.
description: 4 pages, 5 figures. Accepted for publication in Phys. Rev. Lett
Electric Dipole Moments of Nucleons, Nuclei, and Atoms: The Standard Model and Beyond
Creators: name: Engel, Jonathan
name: Ramsey-Musolf, Michael J.
name: van Kolck, U.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Searches for the permanent electric dipole moments (EDMs) of molecules, atoms, nucleons and nuclei provide powerful probes of CP violation both within and beyond the Standard Model (BSM). The interpretation of experimental EDM limits requires careful delineation of physics at a wide range of distance scales, from the long-range atomic and molecular scales to the short-distance dynamics of physics at or beyond the Fermi scale. In this review, we provide a framework for disentangling contributions from physics at these disparate scales, building out from the set of dimension four and six effective operators that embody CP violation at the Fermi scale. We survey existing computations of hadronic and nuclear matrix elements associated with Fermi-scale CP violation in systems of experimental interest, and quantify the present level of theoretical uncertainty in these calculations. Using representative BSM scenarios of current interest, we illustrate how the interplay of physics at various scales generates EDMs at a potentially observable level.
description: To appear in Prog. Part. Nucl. Phys
Untersuchungen zur Interaktion von Ipomoea batatas mit synergistischen und pathogenen Mikroorganismen
Creators: name: Debarry, Matthias
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Gluconacetobacter diazotrophicus
subject: Ipomoea batatas
subject: oxidative burst
subject: plant-bacteria-interaction
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
title: Möbel aus Franken. Oberflächen und Hintergründe. 22. Juni - 15. September 1991. Eine Ausstellung im Germanischen Nationalmuseum. Gemeinschaftsausstellung des Bayerischen Nationalmuseums München und des Germanischen Nationalmuseums Nürnberg
Creators: name: Sangl, Sigrid
name: Bauer, Ingolf
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
Exotic phases of interacting p-band bosons
Creators: name: Hébert, F.
name: Cai, Zi
name: Rousseau, V. G.
name: Wu, Congjun
name: Scalettar, R. T.
name: Batrouni, G. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study a model of interacting bosons that occupy the first excited p-band states of a two-dimensional optical lattice. In contrast to the much studied single band Bose-Hubbard Hamiltonian, this more complex model allows for non-trivial superfluid phases associated with condensation at non-zero momentum and staggered order of the orbital angular momentum in addition to the superfluid-Mott insulator transition. More specifically, we observe staggered orbital angular momentum order in the Mott phase at commensurate filling and superfluidity at all densities. We also observe a transition between the staggered angular momentum superfluid phase and a striped superfluid, with an alternation of the phase of the superfluid along one direction. The transition between these two phases was observed in a recent experiment, which is then qualitatively well described by our model.
description: 8 pages, 12 figures
NMR and Impedance Spectroscopy Studies on Lithium Ion Diffusion in Microcrystalline γ-LiAlO2
Creators: name: Witt, Elena
name: Nakhal, Suliman
name: Chandran, C. Vinod
name: Lerch, Martin
name: Heitjans, Paul
Publisher: name: Berlin : Walter de Gruyter
Year: 2015
Subjects: subject: Impedance Spectroscopy
subject: LiAlO2
subject: Lithium Ion Diffusion
subject: Nuclear Magnetic Resonance
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In this work nuclear magnetic resonance (NMR) and impedance spectroscopy (IS) studies on Li ion dynamics in microcrystalline γ-LiAlO2 are presented. The sample was prepared by solid state synthesis between Li2CO3 and Al2O3 in air, followed by a quenching procedure. The presence of phase-pure γ-LiAlO2 was confirmed by X-ray powder diffraction including Rietveld refinement. Further structural characterization was done with 6Li, 7Li and 27Al NMR. Several NMR techniques such as spin-lattice relaxation measurements, motional narrowing experiments, as well as spin-alignment echo were employed for the investigation of Li ion diffusion. The measurements were carried out at high temperatures (up to 970 K) in order to access the regime of Li ion motion being very slow. The dc conductivities measured by IS in the temperature range from 680 K to 870 K were converted to diffusion coefficients being compatible with those obtained by NMR. © 2015 Walter de Gruyter.
Description Approach for the Transfer of Competencies and Resources in Collaborations Between Corporates and Deep Tech Startups
Creators: name: Schuh, Günther
name: Studerus, Bastian
name: Rohmann, Aaron
Publisher: name: Hannover : publish-Ing.
Year: 2022
Subjects: subject: Deep Tech Startup
subject: Corporate
subject: Competencies
subject: Resources
subject: Transfer
subject: Technology Access
subject: Deep Technology
subject: Dewey Decimal Classification::600 | Technik

description: Deep tech innovations and emerging competitors are putting increasing pressure on established companies to defend their competitive position in globalized markets. With the aim of efficiently generating deep tech innovations through access to deep technologies and thus ensuring growth, corporates are increasingly entering into collaborations with deep tech startups. For their part, deep tech startups are seeking access to complementary competencies in collaborations with corporates. However, due to their differences in practice both partners often lack an understanding of transferable competencies and resources, e.g., deep technologies, competencies and resources. In the context of this work, a model to characterize and identify the potentials for complementary transfer of competencies from corporates and startups within a collaboration is elaborated. Based on an organization-theoretical delimitation of the collaboration partners, a morphology is developed that characterizes suitable groups and dimensions for the identification of competencies and resources. For this purpose, existing approaches for the exchange of competencies in collaborations are analysed and the deficits in relation to deep tech startups are discussed. Based on this, superordinate groups are derived that consider the specific characteristics of corporates and startups. The morphology enables the description of the competencies and resources within a collaboration between corporates and deep tech startups.
Microelectromechanical Resonators for Radio Frequency Communication Applications
Creators: name: Basu, Joydeep
name: Bhattacharyya, Tarun Kanti
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Over the past few years, microelectromechanical system (MEMS) based on-chip resonators have shown significant potential for sensing and high frequency signal processing applications. This is due to their excellent features like small size, large frequency-quality factor product, low power consumption, low cost batch fabrication, and integrability with CMOS IC technology. Radio frequency communication circuits like reference oscillators, filters, and mixers based on such MEMS resonators can be utilized for meeting the increasing count of RF components likely to be demanded by the next generation multi-band/multi-mode wireless devices. MEMS resonators can provide a feasible alternative to the present day well established quartz crystal technology that is riddled with major drawbacks like relatively large size, high cost, and low compatibility with IC chips. This article presents a survey of the developments in this field of resonant MEMS structures with detailed enumeration on the various micromechanical resonator types, modes of vibration, equivalent mechanical and electrical models, materials and technologies used for fabrication, and the application of the resonators for implementing oscillators and filters. These are followed by a discussion on the challenges for RF MEMS technology in comparison to quartz crystal technology; like high precision, stability, reliability, need for hermetic packaging etc. which remain to be addressed for enabling the inclusion of micromechanical resonators into tomorrow's highly integrated communication systems.
Monitoring mittels Airborne Laserscanning – Projektbeispiele über 20 Jahre aus der Bundesrepublik Deutschland
Creators: name: Jany, Sven
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2020
Subjects: subject: ALS
subject: DSM
subject: DTM
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: Der Einfluss der Menschheit auf unsere Umwelt nimmt stetig zu. Fernerkundungsmethoden können verwendet werden, um schnell Informationen über den Zustand unserer Umwelt zu erhalten. Insbesondere Instrumente wie Airborne Laser Scanner (ALS) in Kombination mit Bildgebungssystemen liefern detaillierte Informationen über die Erdoberfläche. Aus ALS können digitale Oberflächenmodelle (DSM) und durch komplexe Filterung digitale Geländemodelle (DTM) abgeleitet werden. ALS in Kombination mit RGB-Daten ermöglicht die Erzeugung von Orthofotos, wenn eine Differenzverzerrung angewendet wird. Die erreichte räumliche Auflösung ist heutzutage besser als 10 cm mit einer Genauigkeit von ungefähr 10 cm in der Position. Die Daten werden je nach Projekttyp typischerweise von kleinen Flugzeugen oder Hubschraubern in Höhen zwischen 300 m und 600 m gemessen. Die daraus abgeleiteten Produkte werden zur Umweltüberwachung, zur topografischen Geländemodellierung, zur Vegetationshöhenbestimmung, zum Küstenschutz, zur Bestimmung von Überschwemmungsgebieten, für digitale Stadtmodelle, zur Fahrbahngestaltung, zur Überwachung, zur Mengenregulierung, zur Regionalplanung im Allgemeinen usw. verwendet. Der Autor illustriert anhand von diversen Projektbeispielen den komplexen Arbeitsablauf, der nötig ist, um den vom Kunden geforderten hohen Standard zu erreichen, angefangen von der Planung über die Verarbeitung bis hin zur Berichterstattung über verschiedene Arten von Airborne-Laserscanner-Projekttypen. Das Sammeln, Verarbeiten, Korrigieren und Zusammenführen der Daten ist nicht trivial, insbesondere dann nicht, wenn die Auflösung und Genauigkeit im Bereich einiger Dezimeter liegt.
Modelling Carbon Radio Recombination Line observation towards the Ultra-Compact HII region W48A
Creators: name: Jeyakumar, S.
name: Roshi, D. Anish
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We model Carbon Recombination Line (CRL) emission from the Photo Dissociation Region (PDR) surrounding the Ultra-Compact (UC) HII region W48A. Our modelling shows that the inner regions ($A_V \sim 1$) of the CII layer in the PDR contribute significantly to the CRL emission. The dependence of line ratios of CRL emission with the density of the PDR and the far ultra-violet (FUV) radiation incident on the region is explored over a large range of these parameters that are typical for the environments of UCHII regions. We find that by observing a suitable set of CRLs it is possible to constrain the density of the PDR. If the neutral density in the PDR is high ($\gtrsim 10^7$ \cmthree) CRL emission is bright at high frequencies ($\gtrsim 20$ GHz), and absorption lines from such regions can be detected at low frequencies ($\lesssim 10$ GHz). Modelling CRL observations towards W48A shows that the UCHII region is embedded in a molecular cloud of density of about $4 \times$ 10$^7$ \cmthree.
description: Accepted for publication in MNRAS. 6 pages 5 figures
Carpinus betulus L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: C. Betulus L. Cat. 321. DieAngabendesCat. sindwiefolgt zuergänzenbzw.zuberichtigen: l: Waldbildend von St-Gingolph bis Monthey; weiter aufwärts vereinzelte Bäume im Wald: bei Massongex, Evionnaz (andiesenOrten ausserdem inHeckengepflanzt), Collonges undD^orenaz. - 2:Nicht"urwüchsig;nur gepflanzt in Heckenbei Sitten. - 3:Bei Chemin, vereinzelte Bäume im Wald, hier Ostgrenze des natürlichen Areals im Wallis; weiter aufwärts im Rhonetal nur verem- zeit gepflanzt in Hecken: bei Saxon, Visp und Brig. (NachMitteilungen vonKantonsforstinspektor K.A.PERRIG[Sitten] undForstinspektor F.ROTEN [Martigny-Ville], 1953.)
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Erfahrungen aus 20 Jahre GPS Monitoring der Massenbewegung Gradenbach
Creators: name: Schönberger, Caroline
name: Lienhart, Werner
name: Lang, Erich
name: Stary, Ulrike
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2020
Subjects: subject: Geodäsie
subject: Langzeitbeobachtung
subject: Langzeitbetrieb
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik

description: Seit den katastrophalen Ereignissen in den Jahren 1965 und 1966 wird die Massenbewegung Gradenbach geodätisch überwacht. Bis 1991 wurden dazu terrestrische Messungen mit Polygonzügen durchgeführt. Seit 1999 sind GPS Messungen in unterschiedlicher Konfiguration im Einsatz. In den mehr als 20 Jahren hat sich das grundlegende Messverfahren nicht geändert, jedoch konnten durch Weiterentwicklungen in der Begleittechnologie (z.B. Datenverbindung, Stromversorgung, ... ) die Datenverfügbarkeit und Echtzeitfähigkeit des Monitoringsystems massiv erhöht werden. Diese geodätisch gemessenen Daten werden durch geotechnische, seismische, meteorologische, hydrologische und faseroptische Messungen ergänzt und erlauben dadurch auch die Verwendung moderner Auswertemethode im Rahmen von kausalen Modellen. Der Hang weist wiederkehrende, beschleunigte Phasen mit Geschwindigkeiten von bis zu 50cm pro Jahr in einem Zeitraum von April bis September und beruhigte Phasen im restlichen Jahr auf. Durch eine Gesamtbetrachtung aller gemessenen Parameter ist eine Korrelation mit Einflussgrößen wie z.B. Hangwasserpegelständen zu erkennen. Der lange Beobachtungszeitraum von mehr als 20 Jahren ermöglicht es, neben Zusammenh ängen der Messgrößen, auch technische Herausforderungen an das Monitoringsystem zu beobachten. So kommt es im Dauerbetrieb immer wieder zu unerwarteten Störungen. Besonders hervorzuheben ist dabei die rasante Weiterentwicklung im IT-Bereich, die wiederholt zu unerwarteten Problemen im Gesamtsystem führt. Aufgrund von Sicherheitsvorschriften, Weiterentwicklung von Betriebssystemen und erforderlichen Updates muss das System regelmäßig angepasst werden, um längere Störungen zu verhindern. In diesem Artikel werden die Erfahrungen in den drei erwähnten Bereichen: Technische Anlagen und Entwicklungsphasen, Bedeutung von Langzeitbeobachtungen und Erfahrung im Langzeitbetrieb erläutert.
School leaders’ perspectives of the continuous professional development of teachers
Creators: name: Lafferty, Niamh
name: Sheehan, Michael
name: Walsh, Conor
name: Mai Rooney, Anna
name: Mannix McNamara, Patricia
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 39
subject: Education

description: Teachers’ engagement with high quality continuous professional development (CPD) opportunities has repeatedly and consistently been linked to an array of positive out-comes for students, teachers, and the wider school community. In light of this, multiple countries have developed and designed frameworks for CPD, such as Cosan in Ireland, the CPD Framework in the UK, and NF-TCPD in Tanzania. Despite this, the delivery, availability, and quality of CPD opportunities has, unfortunately, been debated in recent years and has been identified as an area requiring immediate action. Some barriers to successful CPD implementation include time constraints, financial constraints, and balancing student and staff needs. One aspect which has been shown to influence the uptake of CPD opportunities of employees, yet which is scarcely regarded in literature pertaining to education, is school leader influence. Due to this, to ensure that CPD opportunities are delivered and engaged with, it is imperative to understand the perceptions of school leaders themselves. The purpose of the current study is to garner those perspectives. Semi-structured interviews were carried out with 17 school leaders to identify their experiences and perceptions of the facilitation of CPD opportunities for their staff. From the perspectives of the school leaders who participated in this research, is identified as important for all staff and schools, but multiple barriers and facilitators need to be considered to ensure successful implementation. Based on the findings of this research, a 4-step process for CPD implementation is identified and presented.
Reconstructing cosmological initial conditions from galaxy peculiar velocities. III. Constrained simulations
Creators: name: Doumler, Timur
name: Gottloeber, Stefan
name: Hoffman, Yehuda
name: Courtois, Helene
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In previous works we proposed the Reverse Zeldovich Approximation (RZA) method, which can be used to estimate the cosmological initial conditions underlying the galaxy distribution in the Local Universe using peculiar velocity data. In this paper, we apply the technique to run constrained cosmological simulations from the RZA-reconstructed initial conditions, designed to reproduce the large-scale structure of the Local Universe. We test the method with mock peculiar velocity catalogues extracted from a reference simulation. We first reconstruct the initial conditions of this reference simulation using the mock data, and then run the reconstructed initial conditions forward in time until z=0. We compare the resulting constrained simulations with the original simulation at z=0 to test the accuracy of this method. We also compare them with constrained simulations run from the mock data without the addition of RZA, i.e. using only the currently established constrained realizations (CR) method. Our re-simulations are able to correctly recover the evolution of the large-scale structure underlying the data. The results show that the addition of RZA to the CR method significantly improves both the reconstruction of the initial conditions and the accuracy of the obtained constrained resimulations. Haloes from the original simulation are recovered in the re-simulations with an average accuracy of about 2 Mpc/h on their position and a factor of 2 in mass, down to haloes with a mass of approx 10^14 M_odot/h. In comparison, without RZA the re-simulations recover only the most massive haloes with masses of about 5x10^14 M_odot/h and higher, and with a systematic shift on their position of about approx 10 Mpc/h due to the cosmic displacement field. We show that with the additional Lagrangian reconstruction step introduced by the RZA, this shift can be removed.
description: Accepted for MNRAS, 2012 december 12
High-energy deformation of filaments with internal structure and localized torque-induced melting of DNA
Creators: name: Evans, Arthur A.
name: Levine, Alex J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We develop a continuum elastic approach to examining the bending mechanics of semiflexible filaments with a local internal degree of freedom that couples to the bending modulus. We apply this model to study the nonlinear mechanics of a double stranded DNA oligomer (shorter than its thermal persistence length) whose free ends are linked by a single standed DNA chain. This construct, studied by Qu et al. [Europhys. Lett., $\bf{94}$, 18003, 2011], displays nonlinear strain softening associated with the local melting of the double stranded DNA under applied torque and serves as a model system with which to study the nonlinear elasticity of DNA under large energy deformations. We show that one can account quantitatively for the observed bending mechanics using an augmented worm-like chain model, the helix coil worm-like chain. We also predict that the highly bent and partially molten dsDNA should exhibit particularly large end-to-end fluctuations associated with the fluctuation of the length of the molten region, and propose appropriate experimental tests. We suggest that the augmented worm-like chain model discussed here is a useful analytic approach to the nonlinear mechanics of DNA or other biopolymer systems.
Η Σεξουαλικότητα ως ενδοψυχικό αφήγημα
Creators: name: Fragkiadakis, Dionysus
Publisher: name: figshare
Year: 2023
Subjects: Other psychology not elsewhere classified

description: Στην παρούσα εργασία προσπαθώ να προσεγγίσω το θέμα της σεξουαλικότητας ιδωμένου ως αφήγηση. Δεδομένου ότι η κατάκτηση της ικανότητας να χρησιμοποιούμε τον αφηγηματικό λόγο προκύπτει σε κάποιο σημείο της αναπτυξιακής μας πορείας, δικαιολογημένα ο επιτυχής χειρισμός αυτού μπορεί να θεωρηθεί ως η κατάκτηση κάποιου ορόσημου στο συνεχές της αναπτυξιακής διαδρομής κάθε ατόμου.
Stability of frozen waves in the Modified Cahn--Hilliard model
Creators: name: Benilov, E. S.
name: Lee, W. T.
name: Sedakov, R. O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We examine the existence and stability of frozen waves in diblock copolymers with local conservation of the order parameter, which are described by the modified Cahn--Hilliard model. It is shown that a range of stable waves exists and each can emerge from a `general' initial condition (not only the one with the lowest density of free energy). We discuss the implications of these results for the use of block copolymers in templating nanostructures.
description: 11 pages, 9 figures. Ancillary material contains Fortran code to solve the modified Cahn-Hilliard equation in one dimension, used to generate data for figure 6
Punktcrushieren keramisch gebundener Diamantschleifscheiben
Creators: name: Hessel, Dirk
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Pointcrush dressing
subject: dressing technology
subject: vitrified bonded diamond grinding wheel
subject: plunge form grinding
subject: tool grinding
subject: Dewey Decimal Classification::600 | Technik::670 | Industrielle und handwerkliche Fertigung

description: [no abstract]
Hölder continuous solutions to complex Hessian equations
Creators: name: Nguyen, Ngoc Cuong
Publisher: name: arXiv
Year: 2013
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We prove the Hölder continuity of the solution to complex Hessian equation with the right hand side in $L^p$, $p>\frac{n}{m}$, $1< m< n$, in a $m$-strongly pseudoconvex domain in $\mathbb{C}^n$ under some additional conditions on the density near the boundary and on the boundary data.
description: 19 pages. Added Theorem 3.7: when the boundary is Holder continuous, there exists a Holder continuous $m$-sh extension to the domain
Room temperature Rydberg Single Photon Source
Creators: name: Müller, M. M.
name: Kölle, A.
name: Löw, R.
name: Pfau, T.
name: Calarco, T.
name: Montangero, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present an optimal protocol to implement a room temperature Rydberg single photon source within an experimental setup based on micro cells filled with thermal vapor. The optimization of a pulsed four wave mixing scheme allows to double the effective Rydberg blockade radius as compared to a simple Gaussian pulse scheme, releasing some of the constrains on the geometry of the micro cells. The performance of the optimized protocol is improved by about 70% with respect to the standard protocol.
description: 5 pages, 6 figures
Photocatalytic Degradation of Anthracene in Closed System Reactor
Creators: name: Karam, Faiq F.
name: Hussein, Falah H.
name: Baqir, Sadiq J.
name: Halbus, Ahmed F.
name: Dillert, Ralf
name: Bahnemann, Detlef W.
Publisher: name: New York : Hindawi Publishing Corporation
Year: 2014
Subjects: subject: polycyclic aromatic-hydrocarbons
subject: dyeing waste-water
subject: titanium-dioxide
subject: soil surfaces
subject: uv-light
subject: fluorescence detection
subject: tio2
subject: irradiation
subject: extraction
subject: pahs
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Polycyclic aromatic hydrocarbons (PAHs) represent a large class of persistent organic pollutants in an environment of special concern because they have carcinogenic and mutagenic activity. In this paper, we focus on and discuss the effect of different parameters, for instance, initial concentration of Anthracene, temperature, and light intensity, on the degradation rate. These parameters were adjusted at pH 6.8 in the presence of the semiconductor materials (TiO2) as photocatalysts overUVlight. The main product of Anthracene photodegradation is 9,10-Anthraquinone which isidentified and compared with the standard compound by GC-MS. Our results indicate that the optimum conditions for the best rate of degradation are 25 ppm concentration of Anthracene, regulating the reaction vessel at 308.15 K and 2.5 mW/cm(2) of light intensity at 17 5mg/100 mL of titanium dioxide (P25).
Modeling double slit interference via anomalous diffusion: independently variable slit widths
Creators: name: Pascasio, Johannes Mesa
name: Fussy, Siegfried
name: Schwabl, Herbert
name: Groessing, Gerhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Based on a re-formulation of the classical explanation of quantum mechanical Gaussian dispersion (Groessing et al. 2010) as well as interference of two Gaussians (Groessing et al. 2012), we present a new and more practical way of their simulation. The quantum mechanical "decay of the wave packet" can be described by anomalous sub-quantum diffusion with a specific diffusivity varying in time due to a particle's changing thermal environment. In a simulation of the double-slit experiment with different slit widths, the phase with this new approach can be implemented as a local quantity. We describe the conditions of the diffusivity and, by connecting to wave mechanics, we compute the exact quantum mechanical intensity distributions, as well as the corresponding trajectory distributions according to the velocity field of two Gaussian wave packets emerging from a double-slit. We also calculate probability density current distributions, including situations where phase shifters affect a single slit's current, and provide computer simulations thereof.
description: 17 pages, 5 figures
Constraints on the Holographic Dark Energy Model from Type Ia Supernovae, WMAP7, Baryon Acoustic Oscillation and Redshift-Space Distortion
Creators: name: Xu, Lixin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we use the joint measurement of geometry and growth rate from matter density perturbations to constrain the holographic dark energy model. The geometry measurement includes type Ia supernovae (SN Ia) Union2.1, full information of cosmic microwave background (CMB) from WMAP-7yr and baryon acoustic oscillation (BAO). For the growth rate of matter density perturbations, the results $f(z)σ_8(z)$ measured from the redshift-space distortion (RSD) in the galaxy power spectrum are employed. Via the Markov Chain Monte Carlo method, we try to constrain the model parameters space. The jointed constraint shows that $c=0.750_{- 0.0999- 0.173- 0.226}^{+ 0.0976+ 0.215+ 0.319}$ and $σ_8=0.763_{- 0.0465- 0.0826- 0.108}^{+ 0.0477+ 0.0910+ 0.120}$ with $1,2,3σ$ regions. After marginalizing the other irrelevant model parameters, we show the evolution of the equation of state of HDE with respect to the redshift $z$. Though the current cosmic data points favor a phantom like HDE Universe for the mean values of the model parameters in the future, it can behave like quintessence in $3σ$ regions.
description: 10 pages, 4 figures, to appear in Phys. Rev. D
Spinrauschen in nulldimensionalen Strukturen
Creators: name: Dahbashi, Ramin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Semiconductor
subject: quantum dots
subject: spin dynamics
subject: spin noise
subject: Halbleiter
subject: Quantenpunkte
subject: Spindynamik
subject: Spinrauschen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
title: Inhalt
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 4 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
title: Methoden der Entwicklungspsychologie
Creators: name: Erdfelder, Edgar
name: Rietz, Christian
name: Rudinger, Georg
Publisher: name: Universitätsbibliothek Mannheim
Year: 1996

description: Digitalisierte Ausgabe 2019. Gedruckt erschienen im Handbuch Quantitative Methoden (1996), hrsg. von Edgar Erdfelder, Rainer Mausfeld, Thorsten Meiser und Georg Rudinger, beim Beltz-Verlag (Weinheim), ISBN 3-621-27280-1.
Hadamard-Perron theorems and effective hyperbolicity
Creators: name: Climenhaga, Vaughn
name: Pesin, Yakov
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37D10, 37D25, 37C05,

description: We prove several new versions of the Hadamard-Perron Theorem, which relates infinitesimal dynamics to local dynamics for a sequence of local diffeomorphisms, and in particular establishes the existence of local stable and unstable manifolds. Our results imply the classical Hadamard-Perron Theorem in both its uniform and non-uniform versions, but also apply much more generally. We introduce a notion of "effective hyperbolicity" and show that if the rate of effective hyperbolicity is asymptotically positive, then the local manifolds are well-behaved with positive asymptotic frequency. By applying effective hyperbolicity to finite orbit segments, we prove a closing lemma whose conditions can be verified with a finite amount of information.
description: 45 pages
The Revised D-A-CH-Reference Values for the Intake of Vitamin B 12 : Prevention of Deficiency and Beyond
Creators: name: Ströhle, Alexander
name: Richter, Margrit
name: González-Gross, Marcela
name: Neuhäuser-Berthold, Monika
name: Wagner, Karl-Heinz
name: Leschik-Bonnet, Eva
name: Egert, Sarah
Publisher: name: Weinheim : Wiley-VCH Verlag
Year: 2019
Subjects: subject: cobalamine
subject: holo-transcobalamin
subject: methylmalonic acid
subject: reference value
subject: vitamin B 12
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Scope: The nutrition societies of Germany, Austria, and Switzerland are the joint editors of the “D-A-CH reference values for nutrient intake”, which are revised regularly. Methods and Results: By reviewing vitamin-B 12 -related biomarker studies, the reference values for vitamin B 12 were revised in 2018. For adults, the estimated intake is based on the adequate serum concentrations of holotranscobalamin and methylmalonic acid. The estimated values for children and adolescents are extrapolated from the adult reference value by considering differences in body mass, an allometric exponent, and growth factors. For infants below 4 months of age, an estimated value is set based on the vitamin B 12 intake via breast milk. The reference values for pregnant and lactating women consider the requirements for the fetus and for loss via breast milk. The estimated values for vitamin B 12 intake for infants, children, and adolescents range from 0.5 to 4.0 µg d −1 . For adults, the estimated values are set at 4.0 µg d −1 , and for pregnant and lactating women, they are set at 4.5 and 5.5 µg d −1 , respectively. Conclusion: Based on the data of several vitamin B 12 status biomarkers studies, the reference value for vitamin B 12 intake for adults is raised from 3.0 to 4.0 µg d −1.
title: Methoden der Psychologischen Diagnostik
Creators: name: Kubinger, Klaus D.
Publisher: name: Universitätsbibliothek Mannheim
Year: 1996

description: Digitalisierte Ausgabe 2019. Gedruckt erschienen im Handbuch Quantitative Methoden (1996), hrsg. von Edgar Erdfelder, Rainer Mausfeld, Thorsten Meiser und Georg Rudinger, beim Beltz-Verlag (Weinheim), ISBN 3-621-27280-1.
Theory of t2g electron-gas Rashba interactions
Creators: name: Khalsa, Guru
name: Lee, Byounghak
name: MacDonald, A. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The spin-degeneracy of Bloch bands in a crystal can be lifted when spin-orbit (SO) coupling is present and inversion symmetry is absent. In two-dimensional electron systems (2DES) spin-degeneracy is lifted by Rashba interaction terms - symmetry invariants that are scalar products of spin and orbital axial vectors. Rashba interactions are symmetry allowed whenever a 2DES is not invariant under reflections through the plane it occupies. In this paper, we use a tight-binding model informed by ab initio electronic structure calculations to develop a theory of Rashba splitting in the t2g bands of the two- dimensional electron systems formed at cubic perovskite crystal surfaces and interfaces. We find that Rashba splitting in these systems is due to atomic-like on-site SO interactions combined with processes in which t2g electrons change orbital character when they hop between metal sites. These processes are absent in a cubic environment and are due primarily to polar lattice distortions which alter the metal-oxygen-metal bond angle.
MPEC 2023-M50 : DAILY ORBIT UPDATE (2023 June 19)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
title: Papiertapetenfund in Kirchberg an der Jagst. Auf der Suche nach dem „Grünen Salon“ in der ehemaligen hohenloheschen Residenz
Creators: name: Becker, Lena Stephanie
name: Wiegand, Yvonne
Publisher: name: University Library Heidelberg
Year: 2015

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 44, Nr. 4 (2015), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4