cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Lagrangian Neural Style Transfer for Fluids
Creators: name: Kim, Byungsoo
name: Azevedo, Vinicius C.
name: Gross, Markus
name: Solenthaler, Barbara
Publisher: name: arXiv
Year: 2020
Subjects: subject: Graphics (cs.GR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Artistically controlling the shape, motion and appearance of fluid simulations pose major challenges in visual effects production. In this paper, we present a neural style transfer approach from images to 3D fluids formulated in a Lagrangian viewpoint. Using particles for style transfer has unique benefits compared to grid-based techniques. Attributes are stored on the particles and hence are trivially transported by the particle motion. This intrinsically ensures temporal consistency of the optimized stylized structure and notably improves the resulting quality. Simultaneously, the expensive, recursive alignment of stylization velocity fields of grid approaches is unnecessary, reducing the computation time to less than an hour and rendering neural flow stylization practical in production settings. Moreover, the Lagrangian representation improves artistic control as it allows for multi-fluid stylization and consistent color transfer from images, and the generality of the method enables stylization of smoke and liquids likewise.
description: ACM Transaction on Graphics (SIGGRAPH 2020), additional materials: http://www.byungsoo.me/project/lnst/index.html
title: Einführung einer institutionellen Forschungsdateninfrastruktur an der Helmut-Schmidt-Universität
Creators: name: Eisentraudt, Theres
Publisher: name: Hochschule Hannover
Year: 2016
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Die vorliegende Bachelorarbeit untersucht den zur Einführung einer institutionellen Forschungsdateninfrastruktur zu berücksichtigenden Handlungsrahmen an der Helmut-Schmidt-Universität/ Universität der Bundeswehr Hamburg (HSU/ UniBw H) und gibt unter besonderer Berücksichtigung möglicher Aufgabenfelder der Universitätsbibliothek allgemeine Handlungsempfehlungen für deren Implementierung. Da sich die Arbeit sowohl an die Verantwortlichen zur Einführung einer Forschungsdateninfrastruktur an der HSU/ UniBw H als auch an Interessierte der akademischen Gemeinschaft richtet, werden die zum besseren Verständnis besonders relevanten Begriffe zunächst herausgestellt. Auf der Grundlage aktueller Forschungsliteratur und verfügbarer Praxiserfahrung anderer Universitäten wurde mittels Webseitenanalyse und der Auswertung von Fragebögen eine gesamtheitliche Beschreibung für die Implementierung einer institutionellen Forschungsdateninfrastruktur zum Abgleich mit der Ausgangssituation an der HSU/ UniBw H erstellt. Die Arbeit verdeutlicht in den daraus abgeleiteten Handlungsempfehlungen den zu berücksichtigenden allgemeinen Handlungsrahmen in seiner Komplexität und zeigt vor allem diesbezügliche Aufgabenfelder der Universitätsbibliothek von der Initiierung bis zum Abschluss der Implementierung auf. Im Wesentlichen wird hierbei herausgestellt, dass die Universitätsbibliothek als klassische Gedächtnisorganisation und zentraler Informationsdienstleister ihre Kompetenzen besonders bei der Entwicklung und Verwirklichung des Forschungsdatenmanagements sinnvoll einbringen und zukunftsorientiert erweitern kann und sollte. Auslegungsbestimmend ist die von der Universitätsleitung festzulegende Ziel- und Zweckbestimmung der institutionellen Forschungsdateninfrastruktur. Diese dient dem Forschungsdatenmanagement zur Skalierung und Bestimmung von Umfang, Komplexität und Anforderungen an die potentiellen Aufgabenbereiche insbesondere der Universitätsbibliothek. Somit leistet diese Bachelorarbeit einen grundlegenden Beitrag zur weiteren Strukturierung und Konkretisierung der initiatorischen Überlegungen der Universitätsbibliotheksleitung zu den Möglichkeiten der Einführung einer institutionellen Forschungsdateninfrastruktur an der HSU/ UniBw H.
Additional file 1 of Where there’s smoke, there’s fire: what current and future providers do and do not know about electronic cigarettes
Creators: name: Hwang, Josephine
name: Lee, Crystal
name: Mastrolonardo, Eric
name: Frasso, Rosemary
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. Data collection survey questionnaire used to assess participants’ knowledge of electronic cigarettes and associated health consequences of use.
Johannes bar aphtonaja und die syrische Übersetzung seines Kommentars zum Hohen Liede
Creators: name: Krüger, Paul
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 50 (1966): Oriens christianus, Band 50
The Wide-Binary Origin of The Pluto-Charon System
Creators: name: Rozner, Mor
name: Grishin, Evgeni
name: Perets, Hagai B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The Pluto-Charon binary system is the best-studied representative of the binary Kuiper-belt population. Its origins are vital to understanding the formation of other Kupier-belt objects (KBO) and binaries, and the evolution of the outer solar-system. The Pluto-Charon system is believed to form following a giant impact between two massive KBOs at relatively low velocities. However, the likelihood of a random direct collision between two of the most massive KBOs is low, and is further constrained by the requirement of a low-velocity collision, making this a potentially fine-tuned scenario. Here we expand our previous studies and suggest that the proto-Pluto-Charon system was formed as a highly inclined wide-binary, which was then driven through secular/quasi-secular evolution into a direct impact. Since wide-binaries are ubiquitous in the Kuiper-belt with many expected to be highly inclined, our scenario is expected to be robust. We use analytic tools and few-body simulations of the triple Sun-(proto-)Pluto-Charon system to show that a large parameter-space of initial conditions leads to such collisions. The velocity of such an impact is the escape velocity of a bound system, which naturally explains the low-velocity impact. The dynamical evolution and the origins of the Pluto-Charon system could therefore be traced to similar secular origins as those of other binaries and contact-binaries (e.g. Arrokoth), and suggest they play a key role in the evolution of KBOs.
title: Entwicklung eines Funktionsumfangs für Augmented Reality Führungen in Hochschulbibliotheken
Creators: name: Simonsen, Nils
Publisher: name: Hochschule Hannover
Year: 2016
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Anwendungen in Bibliotheken auf Basis von Augmented Reality (AR), der Erweiterung der Realität durch zusätzliche, virtuelle Informationen, existieren bislang nur vereinzelt. Das vom Bundesministerium für Wirtschaft und Energie geförderte Forschungsprojekt mylibrARy ermittelt seit Juni 2014 Szenarien für den Einsatz von AR in Bibliotheken und Informationseinrichtungen. Das Projekt zielt auf die Entwicklung einer deutschlandweit einsetzbaren Applikation (App). An diesen Gedanken knüpft die vorliegende Arbeit mit der Entwicklung eines Konzepts für Einführungen in Hochschulbibliotheken mittels AR-Technik. Aus der Analyse aktueller Führungsmodelle von Bibliotheken der Hochschulen im Exzellenzcluster 2012-2017, werden die für die Modellführung benötigten charakteristischen Merkmale einer Bibliotheksführung abgeleitet. Auf die technisch relevanten Grundlagen der AR folgt eine Bestandsaufnahme der bisherigen Augmented-Reality-Projekte im internationalen Bibliothekskontext. Daran schließt die Formulierung der theoretischen Anforderungen und die Ausarbeitung der Funktionen im Einzelnen. Nachfolgend lenkt eine kritische Betrachtung den Fokus auf Mehrwert und Risiken der AR für Bibliothek und Nutzer. Mit einer Zusammenfassung und dem Ausblick auf die zukünftige Entwicklung findet die Arbeit ihren Abschuss.
title: Nicht-standardisierte Erweiterungen von SKOS-Thesauri und ihre Auswirkungen auf die Kompatibilität
Creators: name: Freytag, Daniel
Publisher: name: Hochschule Hannover
Year: 2016
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Vorliegende Arbeit beschäftigt sich mit den Auswirkungen von selbst-definierten Extensions auf Kompatibilität von SKOS-Thesauri untereinander. Zu diesem Zweck werden als Grundlage zunächst die Funktionsweisen von RDF, SKOS, SKOS-XL und Dublin Core Metadaten erläutert und die verwendete Syntax geklärt. Es folgt eine Beschreibung des Aufbaus von konventionellen Thesauri inkl. der für sie geltenden Normen. Danach wird der Vorgang der Konvertierung eines konventionellen Thesaurus in SKOS dargestellt. Um dann die selbst-definierten Erweiterungen und ihre Folgen betrachten zu können, werden fünf SKOS-Thesauri beispielhaft beschrieben. Dazu gehören allgemeine Informationen, ihre Struktur, die verwendeten Erweiterungen und ein Schaubild, das die Struktur als Übersicht darstellt. Anhand dieser Thesauri wird dann beschrieben wie Mappings zwischen den Thesauri erstellt werden und welche Herausforderungen dabei bestehen.
title: Stadtbibliothek Wolfsburg - Eine Usability-Studie
Creators: name: Duda, Wiebke
Publisher: name: Hochschule Hannover
Year: 2016
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Die vorliegende Bachelorarbeit befasst sich mit den Themen Usability digitaler Bibliotheksangebote, Nutzerorientierung und Zielgruppendefinition von Öffentlichen Bibliotheken. Die Bearbeiterin untersucht die Website der Stadtbibliothek Wolfsburg. Die Zielgruppen der Stadtbibliothek werden unter Berücksichtigung der demografischen Struktur der Region definiert. Ebenso werden die Entstehungsgeschichte der Stadt beschrieben und wirtschaftliche Einflüsse aufgezeigt. Eine regionale Besonderheit ist die Abhängigkeit der Stadt Wolfsburg zum Volkswagen-Konzern, welche sich einmal mehr durch aktuelle Ereignisse wie den „Abgasskandal bei Volkswagen“ aus dem Jahr 2015 zeigt. Diese regionalspezifischen Aspekte haben insgesamt eine große Relevanz für die zielgruppenorientierte und nutzerfreundliche Gestaltung der Bibliothekswebsite. Allgemein gültige Usability-Standards werden hier an individuelle Faktoren angepasst. Unter Berücksichtigung der Zielgruppendefinition und mithilfe einer Kombination der Usability-Methoden Personas-Verfahren, der Recherchedokumentation im Stil eines Thinking-Aloud-Protokolls und dem Abgleich mit ausgewählten Usability-Kriterien aus dem BibEval-Kriterienkatalog der HTW Chur untersucht die Bearbeiterin den Internetauftritt der Stadtbibliothek Wolfsburg im Praxisteil dieser Bachelorarbeit. Eine zusammenfassende Auswertung zeigt Stärken und Schwächen der Website auf und nennt darüber hinaus Verbesserungspotenziale. Diese Arbeit ist interessant für Bibliothekare, die sich mit der Usability und Nutzerorientierung von digitalen Inhalten nach den spezifischen Zielgruppen einer Institution und ihrem Umfeld auseinander setzen möchten.
Model of Low-pass Filtering of Local Field Potentials in Brain Tissue
Creators: name: Bédard, C.
name: Kröger, H.
name: Destexhe, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Local field potentials (LFPs) are routinely measured experimentally in brain tissue, and exhibit strong low-pass frequency filtering properties, with high frequencies (such as action potentials) being visible only at very short distances ($\approx$10~$μm$) from the recording electrode. Understanding this filtering is crucial to relate LFP signals with neuronal activity, but not much is known about the exact mechanisms underlying this low-pass filtering. In this paper, we investigate a possible biophysical mechanism for the low-pass filtering properties of LFPs. We investigate the propagation of electric fields and its frequency dependence close to the current source, i.e. at length scales in the order of average interneuronal distance. We take into account the presence of a high density of cellular membranes around current sources, such as glial cells. By considering them as passive cells, we show that under the influence of the electric source field, they respond by polarisation, i.e., creation of an induced field. Because of the finite velocity of ionic charge movement, this polarization will not be instantaneous. Consequently, the induced electric field will be frequency-dependent, and much reduced for high frequencies. Our model establishes that with respect to frequency attenuation properties, this situation is analogous to an equivalent RC-circuit, or better a system of coupled RC-circuits. We present a number of numerical simulations of induced electric field for biologically realistic values of parameters, and show this frequency filtering effect as well as the attenuation of extracellular potentials with distance. We suggest that induced electric fields in passive cells surrounding neurons is the physical origin of frequency filtering properties of LFPs.
description: 10 figs, revised tex file and revised figs
Development and Application of Nanocomposite Materials in Telecommunication Networks
Creators: name: Yaremko, Oleg
name: Andrushchak, Nazariy
name: Adamiv, Volodymyr
name: Rosa, Taras
name: Lelonek, Monika
name: Andrushchak, Anatoliy
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This article considers the issue of the development, production, and application of nanocomposite materials in telecommunication networks for the optical and subterahertz wave ranges. The results are obtained on the base of growing the nanocomposite materials from Al2O3 membranes and KDP crystals in a saturated solution.
title: Usability-Studie des TIB-Portals: eine Evaluation der Website der Technischen Informationsbibliothek
Creators: name: Hinterberg, Lou
Publisher: name: Hochschule Hannover
Year: 2017
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: In den letzten Jahren gewinnt das Thema Usability von Websites auch für Bibliotheken zunehmend an Bedeutung. In dieser Bachelorarbeit wird die Benutzerfreundlichkeit des neugestalteten Internetauftritts der Technischen Informationsbibliothek (TIB) in Hannover für die Zielgruppe der Studierenden der Leibniz Universität Hannover (LUH) untersucht. Auslöser für die Neugestaltung stellt die Stiftungswerdung der TIB dar. Im theoretischen Teil der Arbeit werden Grundlagen und Anwendungsbereiche von Usability in verschiedenen Normen dargestellt. Mit den empirischen Methoden der heuristischen Evaluation, dem Experteninterview und dem Usability-Testing, das von der Thinking-Aloud-Methode begleitet wird, werden Stärken und Schwächen des TIB-Portals analysiert. Im Anschluss werden Empfehlungen zur Verbesserung der Anwenderfreundlichkeit des Webauftritts der TIB benannt. Die Studie zeigt, dass die Aufmachung der Website durchaus noch Verbesserungspotential für die Zielgruppe der Studierenden aufweist. Zugleich wird festgestellt, dass neben der Anwenderfreundlichkeit auch noch andere Aspekte die Gestaltung der Webpräsenz der TIB beeinflussen.
Change points in the spread of COVID-19 question the effectiveness of nonpharmaceutical interventions in Germany
Creators: name: Wieland, Thomas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Aims: Nonpharmaceutical interventions against the spread of SARS-CoV-2 in Germany included the cancellation of mass events (from March 8), closures of schools and child day care facilities (from March 16) as well as a "lockdown" (from March 23). This study attempts to assess the effectiveness of these interventions in terms of revealing their impact on infections over time. Methods: Dates of infections were estimated from official German case data by incorporating the incubation period and an empirical reporting delay. Exponential growth models for infections and reproduction numbers were estimated and investigated with respect to change points in the time series. Results: A significant decline of daily and cumulative infections as well as reproduction numbers is found at March 8 (CI [7, 9]), March 10 (CI [9, 11] and March 3 (CI [2, 4]), respectively. Further declines and stabilizations are found in the end of March. There is also a change point in new infections at April 19 (CI [18, 20]), but daily infections still show a negative growth. From March 19 (CI [18, 20]), the reproduction numbers fluctuate on a level below one. Conclusions: The decline of infections in early March 2020 can be attributed to relatively small interventions and voluntary behavioural changes. Additional effects of later interventions cannot be detected clearly. Liberalizations of measures did not induce a re-increase of infections. Thus, the effectiveness of most German interventions remains questionable. Moreover, assessing of interventions is impeded by the estimation of true infection dates and the influence of test volume.
description: Updated with German COVID-19 case data (RKI) from June 28, 2020
Green's function theory of quasi-two-dimensional spin-half Heisenberg ferromagnets: stacked square versus stacked kagomé lattice
Creators: name: Schmalfuß, D.
name: Richter, J.
name: Ihle, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the thermodynamic properties of the quasi-two-dimensional spin-half Heisenberg ferromagnet on the stacked square and the stacked kagomé lattices by using the spin-rotation-invariant Green's function method. We calculate the critical temperature $T_C$, the uniform static susceptibility $χ$, the correlation lengths $ξ_ν$ and the magnetization $M$ and investigate the short-range order above $T_C$. We find that $T_C$ and $M$ at $T>0$ are smaller for the stacked kagomé lattice which we attribute to frustration effects becoming relevant at finite temperatures.
description: shortened version as published in PRB
Waveguide quantum optomechanics: parity-time phase transitions in ultrastrong coupling regime
Creators: name: Iorsh, Ivan
name: Poshakinskiy, Alexander
name: Poddubny, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a rigorous theoretical framework for interaction-induced phenomena in the waveguide quantum electrodynamics (QED) driven by mechanical oscillations of the qubits. Specifically, we predict that the simplest set-up of two qubits, harmonically trapped over an optical waveguide, enables the ultrastrong coupling regime of the quantum optomechanical interaction. Moreover, the combination of the inherent open nature of the system and the strong optomechanical coupling leads to emerging parity-time (\PT) symmetry, quite unexpected for a purely quantum system without artificially engineered gain and loss. The $\mathcal{PT}$ phase transition drives long-living subradiant states, observable in the state-of-the-art waveguide QED setups.
Additional file 1 of Performance evaluation of lossy quality compression algorithms for RNA-seq data
Creators: name: Rongshan Yu
name: Wenxian Yang
name: Wang, Shun
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1 Supplementary Data for “Performance evaluation of lossy quality compression algorithms for RNA-seq data”. Supplementary information on software tools, datasets, and additional results in Tables and Figures.
Additional file 2 of Infection patterns of dengue, Zika and endosymbiont Wolbachia in the mosquito Aedes albopictus in Hong Kong
Creators: name: Huang, Elaine Y. Y.
name: Wong, Annette Y. P.
name: Lee, Ivy H. T.
name: Qu, Zhe
name: Yip, Ho Yin
name: Chi-Wah Leung
name: Shuk-May Yin
name: Hui, Jerome H. L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology
subject: Computational Biology

description: Additional file 2: Figure S1.Wolbachia infection in April 2018. Figure S2.Wolbachia infection in May 2018. Figure S3.Wolbachia infection in June 2018. Figure S4.Wolbachia infection in July 2018. Figure S5.Wolbachia infection in August 2018. Figure S6.Wolbachia infection in September 2018. Figure S7.Wolbachia infection in October 2018. Figure S8.Wolbachia infection in November 2018. Figure S9.Wolbachia infection in December 2018. Figure S10.Wolbachia infection in February 2019. Figure S11.Wolbachia infection in March 2019. Figure S12.Wolbachia infection in April 2019.
The Vimos VLT Deep Survey: Compact structures in the CDFS
Creators: name: Adami, C.
name: Mazure, A.
name: Ilbert, O.
name: Cappi, A.
name: consortium, the VVDS
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have used the Vimos VLT Deep Survey in combination with other spectroscopic, photometric and X-ray surveys from literature to detect several galaxy structures in the Chandra Deep Field South (CDFS). Both a friend-of-friend based algorithm applied to the spectroscopic redshift catalog and an adaptative kernel galaxy density and colour maps correlated with photometric redshift estimates have been used. We mainly detect a chain-like structure at z=0.66 and two massive groups at z=0.735 and 1.098 showing signs of ongoing collapse. We also detect two galaxy walls at z=0.66 and at z=0.735 (extremely compact in redshift space). The first one contains the chain-like structure and the last one contains in its center one of the two massive groups. Finally, other galaxy structures that are probably loose low mass groups are detected. We compare the group galaxy population with simulations in order to assess the richness of these structures and we study their galaxy morphological contents. The higher redshift structures appear to probably have lower velocity dispersion than the nearby ones. The number of moderatly massive structures we detect is consistent with what is expected for an LCDM model, but a larger sample is required to put significant cosmological constraints.
description: 15 pages, 17 figures, accepted in A&A
IMPACTS OF ECONOMIC ADULTERATION ON THE U.S. HONEY INDUSTRY
Creators: name: Fairchild, Gary F.
name: Capps, Oral
name: Nichols, John P.
name: Fairchild, Gary F.
name: Capps, Oral
name: Nichols, John P.
Publisher: name: Unknown
Year: 2000
Subjects: Food Consumption/Nutrition/Food Safety

description: Research for this paper was funded by the National Honey Board to provide a basis for industry dialogue on the need for a quality assurance program. The paper provides a background perspective on economic adulteration, industry perspectives on the extent of economic adulteration in the U.S. honey industry, estimates of potential economic impacts, and a discussion of trends and issues relevant to economic adulteration.
Additional file 1 of Complementary and alternative medicine use in coronary heart disease patients: a cross-sectional study from Palestine
Creators: name: Abdelraouf O. Salah
name: Salameh, Ahmad D.
name: Mohanad A. Bitar
name: Sa’ed H. Zyoud
name: Abdulsalam S. Alkaiyat
name: Al-Jabi, Samah W.
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Biotechnology
Cancer
Science Policy

description: Additional file 1. Study questionnaires. This is the final version of the English version that was used to obtain data which will help to examine the use of complementary and alternative medicine (CAM) among patients with coronary heart disease, the reasons and factors influencing their use, and the types of CAM used.
title: Potentiale und Barrieren der Nutzung des Mobile Payment aus Kundensicht: eine empirische Untersuchung
Creators: name: Haarstick, Felix
Publisher: name: Hochschule Hannover
Year: 2017
Subjects: subject: 380 Handel, Kommunikation, Verkehr

description: Während sich das Zahlungsverfahren Mobile Payment seit einigen Jahren international mehr und mehr etabliert, fristet es entgegen jährlich wiederkehrender Erfolgsprognosen in Deutschland immer noch ein Nischendasein. Die vorliegende Untersuchung entstand im Rahmen einer Bachelorarbeit des Studiengangs der Betriebswirtschaftslehre an der Hochschule Hannover und beschäftigt sich mit den Potentialen und Barrieren der Nutzung des Mobile Payment aus Kundensicht, mit dem Ziel, die wesentlichen Faktoren der geringen Nutzung in Deutschland zu identifizieren. Hierzu wurden Studierende sowohl mittels eines Fragebogens (N = 128) zu ihren persönlichen Nutzungs-Voraussetzungen sowie –Erfahrungen befragt, als auch um die Bewertung verschiedener Faktoren als Potential oder Barriere für eine mögliche Nutzung gebeten. Bei der Auswertung der Ergebnisse konnten Zusammenhänge zwischen den untersuchten Einflussgrößen und der Nutzung des Mobile Payment festgestellt werden. Insbesondere der fehlende Schutz, drohender Missbrauch und eine fehlende Standardanwendung erwiesen sich als wichtige Faktoren für die Entscheidung, Mobile Payment zu nutzen.
description: While mobile payment as an electronic payment system has become increasingly common in today’s everyday life all over the world, mobile payment is still not among the frequently used payment procedures in Germany despite annual prognoses to the contrary. This study was developed for the purposes of a study programme in business administration at the University of Applied Science and Arts in Hanover. It investigates the potentialities and barriers of the use of mobile payment from a customer's point of view, to identify the essential factors of the slight adoption behaviors of mobile payment in Germany. For that a paper-based questionnaire (N = 128) was handed out to the students of the Faculty IV Economics and Computer Science of the University of Applied Science and Arts in Hanover to investigate their personal technical conditions of use and experiences of use, as well as to evaluate different factors as eventual potentialities or barriers for the use of mobile payment. By evaluating the questionnaires correlations between the influencing variable and the use of mobile payment could be detected. In particular, the lack of technical protection, threat of abuse and a missing standard application proved to be important factors for the decision to use mobile payment.
Adaptive Synchronization of An Uncertain Complex Dynamical Network
Creators: name: Zhou, Jin
name: Lu, Junan
name: Lu, Jinhu
Publisher: name: arXiv
Year: 2005
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: This brief paper further investigates the locally and globally adaptive synchronization of an uncertain complex dynamical network. Several network synchronization criteria are deduced. Especially, our hypotheses and designed adaptive controllers for network synchronization are rather simple in form. It is very useful for future practical engineering design. Moreover, numerical simulations are also given to show the effectiveness of our synchronization approaches.
description: 5 pages, 3 figures
Molecular Gas in Compact Galaxies
Creators: name: Israel, F. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: New observations of 11 compact galaxies in the 12CO J=2-1 and J=3-2 transitions and literature data have been used to construct accurate line ratios in matched beams allowing LVG modelling of physical parameters. Fitting a single gas component to observed line ratios tends to produce physically unrealistic results, and is often not possible at all. Much better results are obtained by modelling two distinct gas components. The molecular gas is usually warm (T(kin)=50-150 K) and at least partially dense (n(H2)>3000 cm3). Most of the gas-phase carbon in these galaxies is in atomic form; only a small fraction (5%) is in carbon monoxide. Beam-averaged CO column densities are low, typically 10(16) cm2 but molecular hydrogen column densities are high, of the order of 10(22) cm2 and confirm large CO-to-H2 conversion factors, typically X = 10(21)-10(22) cm2(K kms-1) found in low-metallicity environments by other methods. From CO spectroscopy, three different types of molecular environment are distinguished in compact galaxies. Type I (high rotational and isotopic ratios) corresponds to hot and dense molecular clouds dominated by star-forming regions. Type II has lower ratios, similar to the mean found for infrared-luminous galaxies in general, and corresponds to environments engaged in, but not dominated by, star-forming activity. Type III, characterized by low 12CO (2--1)/(1--0) ratios, corresponds to mostly inactive environments of relatively low density.
description: 12 pages, accepted by A&A
Electron-beam-induced shift in the apparent position of a pinned vortex in a thin superconducting film
Creators: name: Clem, John R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: When an electron beam strikes a superconducting thin film near a pinned vortex, it locally increases the temperature-dependent London penetration depth and perturbs the circulating supercurrent, thereby distorting the vortex's magnetic field toward the heated spot. This phenomenon has been used to visualize vortices pinned in SQUIDs using low-temperature scanning electron microscopy. In this paper I develop a quantitative theory to calculate the displacement of the vortex-generated magnetic-flux distribution as a function of the distance of the beam spot from the vortex core. The results are calculated using four different models for the spatial distribution of the thermal power deposited by the electron beam.
description: 9 pages, 6 figures, resubmitted to PRB with referee-suggested revisions, includes new paragraph on numerical evaluation
title: Cradle to Cradle – An analysis of the market potential in the German outdoor apparel industry
Creators: name: Weiner, Mareike
Publisher: name: Hochschule Hannover
Year: 2017
Subjects: subject: 330 Wirtschaft

description: The purpose of this study is to investigate the market potential in the German outdoor apparel industry by focusing on sustainable production in terms of environmental and human health. A literature study of the Cradle to Cradle (C2C) design concept is provided, as it represents a solution for pollution, waste and environmental destruction caused by the current industrial design and waste management. The data for the subsequent market- and competitive analysis of the German outdoor apparel industry was collected through secondary research in order to identify several key market indicators for the assessment of the market potential. The outcome of this research is the identification of a positioning strategy for outdoor apparel according to the C2C design concept. The results show stagnant growth rates in recent years in the German outdoor apparel market and strong rivalry among the competitors. However, a significant market potential was calculated and beneficial trends for sustainable outdoor brands were recognised. These findings reveal the existence of a market potential for an outdoor apparel brand according to the C2C design concept. By following a positioning strategy of transparency and full commitment to a sustainable production, the company might be able to gain market shares from its competitors, as future predictions indicate slow growth rates in the market. The results of this analysis can be of great interest for entrepreneurs that plan to enter the German outdoor apparel industry.
On the Clark-alpha model of turbulence: global regularity and long--time dynamics
Creators: name: Cao, C.
name: Holm, D. D.
name: Titi, E. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: In this paper we study a well-known three--dimensional turbulence model, the filtered Clark model, or Clark-alpha model. This is Large Eddy Simulation (LES) tensor-diffusivity model of turbulent flows with an additional spatial filter of width alpha ($α$). We show the global well-posedness of this model with constant Navier-Stokes (eddy) viscosity. Moreover, we establish the existence of a finite dimensional global attractor for this dissipative evolution system, and we provide an anaytical estimate for its fractal and Hausdorff dimensions. Our estimate is proportional to $(L/l_d)^3$, where $L$ is the integral spatial scale and $l_d$ is the viscous dissipation length scale. This explicit bound is consistent with the physical estimate for the number of degrees of freedom based on heuristic arguments. Using semi-rigorous physical arguments we show that the inertial range of the energy spectrum for the Clark-$å$ model has the usual $k^{-5/3}$ Kolmogorov power law for wave numbers $kå\ll 1$ and $k^{-3}$ decay power law for $kå\gg 1.$ This is evidence that the Clark$-α$ model parameterizes efficiently the large wave numbers within the inertial range, $kå\gg 1$, so that they contain much less translational kinetic energy than their counterparts in the Navier-Stokes equations.
description: 11 pages, no figures, submitted to J of Turbulence
PROCUREMENT STRATEGIES: IMPACTS OF QUALITY RISKS IN HARD WHEAT
Creators: name: Wilson, William W.
name: Dahl, Bruce L.
name: Johnson, D. Demcey
name: Wilson, William W.
name: Dahl, Bruce L.
name: Johnson, D. Demcey
Publisher: name: Unknown
Year: 2000
Subjects: Crop Production/Industries

description: Analytical models were developed in this paper to evaluate cost/risk tradeoffs of three alternative procurement strategies in the case of hard red spring (HRS) wheat. Results indicate a naive strategy has the lowest expected cost, but a high probability of not conforming to end-use requirements. Two alternative specifications for the constant share strategy result in higher probabilities of meeting requirements, but at higher costs. The opportunistic strategy results in a higher probability of meeting requirements than either of the other two alternative strategies at a comparable cost.
Space-Time Medium Functions as a Perfect Antenna-Mixer-Amplifier Transceiver
Creators: name: Taravati, Sajjad
name: Eleftheriades, George V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We show that a space-time-varying medium can function as a front-end transceiver, i.e., an antenna-mixer-amplifier. Such a unique functionality is endowed by space-time surface waves associated with complex space-time wave vectors in a subluminal space-time medium. The proposed structure introduces pure frequency up- and down-conversions and with very weak undesired time harmonics. In contrast to other recently proposed space-time mixers, a large frequency up-/down conversion ratio, associated with gain is achievable. Furthermore, as the structure does not operate based on progressive energy transition between the space-time modulation and the incident wave, it possesses a subwavelength thickness (metasurface). Such a multi-functional, highly efficient and compact medium is expected to find various applications in modern wireless telecommunication systems.
title: Vergleich von webbasierten Programmierschnittstellen zum Zugriff auf kontrollierte Vokabulare
Creators: name: Horn, Moritz
Publisher: name: Hochschule Hannover
Year: 2017
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Diese Arbeit beschäftigt sich mit der Analyse von Webschnittstellen für kontrollierte Vokabulare von Informationseinrichtungen. Hierfür werden zunächst einige relevante Arten solcher Vokabulare vorgestellt. Außerdem wird ein Überblick über die in diesem Zusammenhang verwendeten Technologien und Standards für den maschinellen Datenaustausch über das World Wide Web gegeben. Darauf aufbauend werden schließlich die Schnittstellen von vier in der Bibliothekswelt viel genutzten Vokabularen miteinander verglichen. Zu diesem Zweck wird jedes Begriffssystem kurz vorgestellt und die Funktionalitäten der entsprechenden API untersucht. Danach werden die Untersuchungsobjekte nach ausgewählten Kriterien einander gegenübergestellt. Im Abschluss werden die Ergebnisse des Vergleichs präsentiert.
Wall-Paintings on the Monastic Churches of Judaea
Creators: name: Meinardus, Otto F. A.
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 50 (1966): Oriens christianus, Band 50
SUPPLY-SIDE RISKS AND MALTING BARLEY PROCUREMENT AND STORAGE
Creators: name: Johnson, D. Demcey
name: DeVuyst, Eric A.
name: Nganje, William E.
name: Johnson, D. Demcey
name: DeVuyst, Eric A.
name: Nganje, William E.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Crop Production/Industries
subject: barley
subject: discrete stochastic programming
subject: risk
subject: international trade

description: U.S. production of six-rowed malting barley has declined sharply over the last several years. Further, the quality of U.S. malting barley has suffered repeatedly due to disease. This has left the U.S. malting industry dependent on a single-desk seller of malting barley, the Canadian Wheat Board. In this paper, we develop a discrete stochastic programming model to analyze the procurement and storage decisions of the U.S. malting industry. We employ the model to investigate the impact that various sources of risk have on the industry's reliance on imported barley. The results indicate strategies that mitigate dependence on imports.
Compressed Sensing Tomography for qudits in Hilbert spaces of non-power-of-two dimensions
Creators: name: Badveli, Revanth
name: Jagadish, Vinayak
name: Srikanth, R.
name: Petruccione, Francesco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The techniques of low-rank matrix recovery were adapted for Quantum State Tomography (QST) previously by D. Gross et al. [Phys. Rev. Lett. 105, 150401 (2010)], where they consider the tomography of $n$ spin-$1/2$ systems. For the density matrix of dimension $d = 2^n$ and rank $r$ with $r \ll 2^n$, it was shown that randomly chosen Pauli measurements of the order $O(dr \log(d)^2)$ are enough to fully reconstruct the density matrix by running a specific convex optimization algorithm. The result utilized the low operator-norm of the Pauli operator basis, which makes it `incoherent' to low-rank matrices. For quantum systems of dimension $d$ not a power of two, Pauli measurements are not available, and one may consider using SU($d$) measurements. Here, we point out that the SU($d$) operators, owing to their high operator norm, do not provide a significant savings in the number of measurement settings required for successful recovery of all rank-$r$ states. We propose an alternative strategy, in which the quantum information is swapped into the subspace of a power-two system using only $\textrm{poly}(\log(d)^2)$ gates at most, with QST being implemented subsequently by performing $O(dr \log(d)^2)$ Pauli measurements. We show that, despite the increased dimensionality, this method is more efficient than the one using SU($d$) measurements.
description: 6 pages, 2 figures
SHADOW PRICE IMPLICATIONS OF SECOND DEGREE STOCHASTIC DOMINANCE EFFICIENCY
Creators: name: McCamley, Francis P.
name: Rudel, Richard K.
name: McCamley, Francis P.
name: Rudel, Richard K.
Publisher: name: Unknown
Year: 2000
Subjects: Research Methods/ Statistical Methods

description: Second degree stochastic dominance (SSD) can be, but seldom is explicitly, applied to problems having continuous variables. A model is presented which, for any SSD efficient solution, facilitates exploration of the set of SSD consistent shadow prices. The model is tested by applying it to a problem described by Hazell.
Additional file 7 of Examining the relationship between maternal body size, gestational glucose tolerance status, mode of delivery and ethnicity on human milk microbiota at three months post-partum
Creators: name: LeMay-Nedjelski, Lauren
name: Butcher, James
name: Ley, Sylvia H.
name: Asbury, Michelle R.
name: Hanley, Anthony J.
name: Kiss, Alex
name: Unger, Sharon
name: Copeland, Julia K.
name: Wang, Pauline W.
name: Zinman, Bernard
name: Stintzi, Alain
name: O’Connor, Deborah L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 7: Table S5. Examining the association between maternal characteristics and the milk microbiota beta-diversity. Statistically significant p-values (p
Coupled-mode theory for microresonators with quadratic nonlinearity
Creators: name: Skryabin, Dmitry V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We use Maxwell's equations to derive several models describing the interaction of the multi-mode fundamental field and its second harmonic in a ring microresonator with quadratic nonlinearity and quasi-phase-matching. We demonstrate how multi-mode three-wave mixing sums entering nonlinear polarisation response can be calculated via Fourier transforms of products of the field envelopes. Quasi-phase-matching gratings with arbitrary profiles are incorporated seamlessly into our models. We also introduce several levels of approximations allowing to account for dispersion of nonlinear coefficients and demonstrate how coupled-mode equations can be reduced to the envelope Lugiato-Lefever-like equations with self-steepening terms. An estimate for the $χ^{(2)}$ induced cascaded Kerr nonlinearity, in the regime of imperfect phase-matching, puts it above the intrinsic Kerr effect by several orders of magnitude.
description: 11 pages
Scanning tunneling microscopy of surfaces of half-metals: an ab-initio study on NiMnSb(001)
Creators: name: Ležaić, Marjana
name: Mavropoulos, Phivos
name: Bihlmayer, Gustav
name: Blügel, Stefan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present a first-principles study of the unreconstructed (001) surfaces of the half-metallic ferromagnet NiMnSb. Both terminations (MnSb and Ni) are considered. We find that half-metallicity is lost at the surfaces. After a discussion of the geometric relaxations and the spin-polarized surface band structure, we focus on topography images which are expected to be found with spin-polarized scanning tunneling microscopy. For the MnSb-terminated surface we find that only the Sb atoms are visible, reflecting a geometric buckling caused by relaxations. For the Ni-terminated surface we find a strong contrast between the images of forward and reverse tip-sample-bias of 0.5 eV, as well as a stripe-like image for reverse bias. We interpret these findings in terms of highly directional surface states which are formed in the spin-down gap region.
description: Submitted to J. Phys. D: Appl. Phys
title: Experimental assessment of hull, propeller, and the gate rudder system interaction in calm water and oblique waves
Creators: name: Köksal, Çağatay Sabri
name: Aktas, Batuhan
name: Gürkan, Ahmet Yusuf
name: Sasaki, Noriyuki
name: Atlar, Mehmet
Publisher: name: Strathprints - University of Strathclyde
Year: 2024

description: This study focuses on the experimental assessment of the EU H2020 Innovation Action project GATERS' target ship, a 7241 DWT multi-purpose dry cargo ship (M/V ERGE), scaled to 1/27.1, in calm water and oblique wave (at a yaw angle of the ship model) conditions. M/V ERGE was initially built with a Conventional Rudder System (CRS) in 2010 but was later retrofitted with a newly introduced energy-saving device, the Gate Rudder System (GRS), in 2023 as part of the GATERS project. In this project, the interaction of the GRS with the hull and propeller was investigated using model tests of the vessel in the Kelvin Hydrodynamics Laboratory's (KHL) towing tank at the University of Strathclyde (UoS) and compared to the CRS. The main objectives of these tests were threefold. While they aimed to make experimental contributions toward the establishment of the best procedure for estimating the powering prediction of a ship with the GRS, they also aimed to investigate the hull, propeller and rudder interaction for the CRS and GRS configurations. In addition, a set of comparative pilot tests were conducted in waves to explore the effect of the oblique waves on the vessel's performance with the CRS and GRS. The resistance and self-propulsion tests were performed for both the CRS and GRS configurations, and performance predictions based on the model tests were compared with sea trials. Furthermore, tests at a yaw angle of the ship model were conducted to evaluate the effect of waves on the vessel's performance with the CRS and GRS, simulating the in-service conditions of commercial ships. These tests were conducted in regular waves with the hull at a yaw angle to simulate oblique wave conditions, with a wave height of 1.25 m in full scale (corresponding to moderate breeze, Beaufort 4) for a range of wavelengths. Numerical analyses were performed to obtain the full-scale propeller open water characteristics. The paper demonstrates the superior interaction of the GRS with the hull and propeller in both conditions compared to the CRS configuration, even improving its contribution to the vessel's performance in oblique waves.
title: Open Access zu Textpublikationen und Forschungsdaten: Positionen politischer Parteien in Deutschland
Creators: name: Wohlleben, Verena
Publisher: name: Hochschule Hannover
Year: 2017
Subjects: subject: 020 Bibliotheks- und Informationswissenschaft

description: Die Arbeit beginnt mit einem Blick auf die Entstehung der Open-Access-Bewegung und erklärt die zentralen Begriffe Open Access zu Textpublikationen und Forschungsdaten und stellt das Zweitveröffentlichungsrecht vor. Die Vorstellung der beschlossenen Open-Access-Strategien, zusammen mit der Untersuchung von Wahlprogrammen und Koalitionsverträgen vermittelt einen Gesamteindruck zum aktuellen Open-Access-Stand in den Ländern. Bereits seit zehn Jahren ist die Forderung nach Open Access, dem freien Zugang zu wissenschaftlichen Informationen, Bestandteil der Wahlprogramme politischer Parteien. Trotzdem beschlossen erst in den Jahren 2014 und 2015 die Länder Baden-Württemberg, Berlin und Schleswig-Holstein landesweite Konzepte zur Open-Access-Förderung. Im Sommer 2016 wird unter den politischen Parteien in Deutschland eine schriftliche Befragung durchgeführt. Ziel der Befragung ist die Ermittlung der Positionen der Parteien, um Rückschlüsse auf die weitere Open-Access-Entwicklung in Deutschland zu ziehen.