cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The very energetic, broad-lined type Ic Supernova 2010ah (PTF10bzf) in the context of GRB/SNe
Creators: name: Mazzali, Paolo A.
name: Walker, Emma S.
name: Pian, Elena
name: Tanaka, Masaomi
name: Corsi, Alessandra
name: Hattori, Takashi
name: Gal-Yam, Avishay
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: SN2010ah, a very broad-lined type Ic SN discovered by the Palomar Transient Factory, was interesting because of its relatively high luminosity and the high velocity of the absorption lines, which was comparable to that of GRB/SNe, suggesting a high explosion kinetic energy. However, no GRB was detected in association with the SN. Here, the properties of SN2010ah are determined with higher accuracy than previous studies through modelling. New Subaru telescope photometry is presented. A bolometric light curve is constructed taking advantage of the spectral similarity with SN1998bw. Radiation transport tools are used to reproduce the spectra and the light curve. The results thus obtained regarding ejecta mass, composition and kinetic energy are then used to compute a synthetic light curve. This is in reasonable agreement with the early bolometric light curve of SN2010ah, but a high abundance of 56Ni at high velocity is required to reproduce the early rise, while a dense inner core must be used to reproduce the slow decline at late phases. The high-velocity 56Ni cannot have been located on our line of sight, which may be indirect evidence for an off-axis, aspherical explosion. The main properties of SN2010ah are: ejected mass ~ 3 Mo; kinetic energy ~10^52 erg, M(56Ni) ~ 0.25 Mo. The mass located at v >~ 0.1c is ~0.2 Mo. Although these values, in particular the kinetic energy, are quite large for a SN Ic, they are all smaller (especially the ejecta mass) than those typical of GRB/SNe. This confirms the tendency for these quantities to correlate, and suggests that there are minimum requirements for a GRB/SN, which SN2010ah may not meet although it comes quite close. Depending on whether a neutron star or a black hole was formed following core collapse, SN2010ah was the explosion of a CO core of ~ 5-6 Mo, pointing to a progenitor mass of ~24 - 28 Mo.
description: MNRAS, in press
title: Turning Tenders into Tinder: How AI and Open Data can spark Bidding Matches
Creators: name: Klassen, Gerhard
name: Bauer, Luca T.
name: Fritzsche, Robin
name: Kordyaka, Bastian
name: Weber, Sebastian
name: Niehaves, Björn
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Open Data
subject: Procurement
subject: Machine Learning
subject: Artificial Intelligence

description: Public procurement in Germany, accounting for 15% of GDP, is plagued by inefficiencies, high costs, and lack of transparency. This study investigates how Open Data can enhance competitive bidding and streamline the identification of suitable companies. Using the German public procurement market, we propose a web-based portal employing machine learning to automate tender and bidder matchmaking. Our methodology includes data collection, company profiling, and NLPbased similarity searches. Results indicate that integrating Open Data can increase competition, improve bid quality, and enhance procurement efficiency. This research provides a scalable framework for more transparent and effective public procurement practices, with potential applications in other regions and sectors.
Modellierung elektrischer und magnetischer Felder von Energieversorgungsleitungen über realem Grund mittels des verallgemeinerten Spiegelprinzips
Creators: name: Gronwald, Frank
name: Plambeck, Jörg
name: Weber, Thomas
Publisher: name: Aachen : Apprimus
Year: 2016
Subjects: subject: Elektrisches Feld
subject: Magnetisches Feld
subject: Energieversorgungsleitung
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Bei der Auslegung von Energieversorgungsleitungen sind zum Schutz der Bevölkerung Grenzwerte bezüglich der von den Leitungen hervorgerufenen niederfrequenten elektrischen und magnetischen Felder zu berücksichtigen [1, 2]. Zur Modellierung und Berechnung dieser Felder genügen üblicherweise quasistationäre und elektrostatische Methoden [3]: Bei bekannten Strömen und bekannter Leitergeometrie folgen die magnetischen Felder aus dem Ampèreschen Gesetz. Die elektrischen Felder ergeben sich bei vorgegebenen Leiterspannungen aus dem Invertieren einer Kapazitätsmatrix. Im konkreten Anwendungsfall tritt jedoch das Problem auf, dass bestimmte Eingabeparameter, und hier sind in erster Linie Materialparameter des Bodens zu nennen, gar nicht genau bekannt sind. Um den Einfluss dieser Unsicherheit abzuschätzen, kann das verallgemeinerte Spiegelprinzip angewendet werden [4]. Im Vergleich zum üblichen Spiegelprinzip, welches eine ideal leitfähige Spiegelebene voraussetzt, erlaubt das verallgemeinerte Spiegelprinzip auf Basis der Sommerfeld-Integrale die Miteinbeziehung einer endlich leitfähigen Erde. Weiterhin kann der Durchhang der Leitungen durch analytische Abschätzungen berücksichtigt werden [5]. Als Resultat lassen sich auch mit elementaren Formeln die von Energieversorgungsleitungen ausgehenden magnetischen und elektrischen Felder berechnen und entsprechende Standortanalysen durchführen.
Graffiti, Street Art, Schablonengraffiti: Überschneidungen und Differenzen. Tagungsbericht
Creators: name: Philipps, Axel
Publisher: name: Leipzig : Leipziger Forschungsgruppe Soziales
Year: 2011
Subjects: subject: Graffiti
subject: Street Art
subject: Stencils
subject: conference
subject: Schablonengraffiti
subject: Tagung
subject: Graffito
subject: Streetart
subject: Schablonengraffito
subject: Entstehung
subject: Forschung
subject: Inhaltsangabe
subject: Konferenz
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie

description: Die Leipziger Forschungsgruppe Soziales e.V. und das Institut für Soziologie der Leibniz Universität Hannover veranstalteten mit Unterstützung der Fakultät für Philosophie und Sozialwissenschaften der Universität Leipzig vom 17. bis zum 18. Juni 2011 die Tagung Graffiti, Street Art, Schablonengraffiti: Überschneidungen und Differenzen. Der Bericht gibt die Themen und Inhalte der Veranstaltung wieder.
title: Leichenrede beim Begräbnis des sel. Robert Landolt-Trümpler (1843-1897)
title: gehalten von Louis Pestalozzi in der Kirche zu Predigern in Zürich am 4. Mai 1897
titleType: Subtitle
Creators: name: Pestalozzi, Louis
name: Fröhlich, Edmund
Publisher: name: Orell Füssli Druck
Year: 1897
Subjects: subject: 330 Wirtschaft
subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Landolt-Trümpler, Robert
subject: Zürich

description: Enth.: Leichenrede von Louis Pestalozzi ; Ansprache des Herrn Pfarrer Edm. Fröhlich zu St. Anna an die Verwandten des sel. Hrn Robert Landolt-Trümpler an seinem Begräbnistage 4. Mai 1897
Constraining Lorentz Violation in Electroweak Physics
Creators: name: Lehnert, Ralf
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2018
Subjects: subject: Bosons
subject: Lorentz
subject: Lorentz violations
subject: Polarized electrons
subject: The standard model
subject: Z Bosons
subject: Electron scattering
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: For practical reasons, the majority of past Lorentz tests has involved stable or quasistable particles, such as photons, neutrinos, electrons, protons, and neutrons. Similar efforts in the electroweak sector have only recently taken shape. Within this context, Lorentz-violation searches in the Standard-Model Extension's Z-Boson sector will be discussed. It is argued that existing precision data on polarized electron-electron scattering can be employed to extract the first conservative two-sided limits on Lorentz breakdown in this sector at the level of 10-7. © Published under licence by IOP Publishing Ltd.
title: Effektive Nutzerzentrierung in Open Data-Portalen: Eine prototypische Entwicklung
Creators: name: Engeln, Felix
name: Siebenlist, Tobias
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Open Data-Portal
subject: Open Government Data
subject: Open Data
subject: Nutzerzentrierung
subject: KI-Integration
subject: Benutzerfreundlichkeit
subject: Usability

description: Dieser Beitrag untersucht die Verbesserung der Benutzerfreundlichkeit von Open Data-Portalen durch nutzerzentrierte Designansätze. Durch die Entwicklung eines Prototyps werden spezifische Funktionen wie intuitive Suchmechanismen, fortschrittliche Analysetools und KI-Integration, exemplarisch durch ChatGPT, evaluiert. Besonders hervorgehoben wird die Bedeutung sozialer Interaktionsmöglichkeiten, die eine Gemeinschaft rund um die Daten fördern und die Datenqualität durch Nutzerfeedback steigern. Erste Evaluierungsergebnisse zeigen eine deutliche Zufriedenheitssteigerung der Nutzenden, was das Potenzial dieser Ansätze unterstreicht. Die Studie bildet eine Grundlage für die kontinuierliche Entwicklung und Forschung im Bereich Open Data, um deren Nutzbarkeit und den demokratischen Nutzen zu maximieren.
QCD resummation for semi-inclusive hadron production processes
Creators: name: Anderle, Daniele P.
name: Ringer, Felix
name: Vogelsang, Werner
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the resummation of large logarithmic perturbative corrections to hadron production in electron-positron annihilation and semi-inclusive deep-inelastic scattering. We find modest, but significant, enhancements of hadron multiplicities in the kinematic regimes accessible in present high-precision experiments. Our results are therefore relevant for the determination of hadron fragmentation functions from data for these processes.
description: 14 pages, 11 figures
Pseudogap and the specific heat of high $T_c$ superconductors
Creators: name: Calegari, E. J.
name: Magalhaes, S. G.
name: Chaves, C. M.
name: Troper, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The specific heat of a two dimensional repulsive Hubbard model with local interaction is investigated. We use the two-pole approximation which exhibits explicitly important correlations that are sources of the pseudogap anomaly. The interplay between the specific heat and the pseudogap is the main focus of the present work. Our self consistent numerical results show that above the occupation $n_T\approx 0.85$, the specific heat starts to decrease due to the presence of a pseudogap in the density of states. We have also observed a two peak structure in the specific heat. Such structure is robust with respect to the Coulomb interaction $U$ but it is significantly affected by the occupation $n_T$. A detailed study of the two peak structure is carried out in terms of the renormalized quasi-particle bands. The role of the second nearest neighbor hopping on the specific heat behavior and on the pseudogap, is extensively discussed.
description: 6 pages, 6 figures, accepted for publication in Solid State Communications
title: Konzeption einer rundenbasierten Simulation zur Förderung von Digital Literacy: Diskussionsbeitrag zur Verwaltungsmodernisierung
Creators: name: Krause, Tobias
name: Jacob, Stephan
name: Piesold, Ralf-Rainer
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Gamification
subject: Digital Literacy
subject: Public Administration. E-Government
subject: Motivation

description: Der Beitrag beleuchtet den aktuellen Stand der Forschung zum Thema Gamification in der öffentlichen Verwaltung und diskutiert, inwiefern Gamification eine wichtige Methode zur Steigerung von Kompetenzen der Zukunft (z.B. Digital Literacy) im öffentlichen Sektor darstellen kann. Anhand eines rundenbasierten Konzeptes wird erläutert, wie sich verschiedene Elemente praxisnah in ein Gesamtkonzept integrieren lassen, das es zulässt, Elemente der Digital Literacy unterschwellig und spielerisch zu erlernen.
title: GovLearn: A Digital Tool to Empower Public Servants in their Search for Digital Government Competence Education
Creators: name: Koddebusch, Michael
name: Brützke, Paul
name: Becker, Jörg
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Digital Government
subject: E-Government
subject: Competence
subject: Design Science Research
subject: Public Servant

description: Developing digital government competences among public servants is crucial for the digital transformation of public organizations and the broader public sector. Traditional undergraduate education and apprenticeships are often insufficient for imparting these competences, and demographic trends necessitate exploring alternative methods for competence development. Professional development thus becomes particularly significant. A major hurdle is that public servants frequently lack awareness of their own digital government competence needs, and the array of available training opportunities is disorganized. To address these issues, we employed design science research. We designed, developed, and evaluated GovLearn, a digital tool that aids public servants in identifying their individual digital government competence requirements and provides tailored continuous education recommendations. This tool represents a significant step towards enhancing the capability of public servants to navigate and benefit from continuous education opportunities in a structured manner.
Moderne Regelverfahren für aktive harmonische Filter
Creators: name: Matthes, Peter
name: Müller, Frank
Publisher: name: Aachen : Apprimus
Year: 2016
Subjects: subject: Elektrisches Versorgungsnetz
subject: Netzqualität
subject: Messtechnik
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Mit zunehmendem Einsatz leistungselektronischer Verbraucher und dem weiteren Ausbau der erneuerbaren Energien rückt das Thema Qualität der elektrischen Versorgungsnetze und seine Sicherstellung immer weiter in den Fokus. Die Folgen schlechter Netzqualität sind sehr unterschiedlich. In der Theorie ist ein ideales Netz jederzeit verfügbar, hat eine konstante Frequenz von 50Hz, hat ideal sinusförmige Ströme und Spannungen, hat eine konstante Netzspannung und keine Spannungseinbrüche oder Komplettunterbrechungen. In der Realität wird durch den zunehmenden Einsatz von Leistungselektronik das Netz nichtlinear belastet, was zu Verzerrungen der Kurvenform führt (Oberschwingungen), sichtbare Schwankungen der Beleuchtung verursacht (Flicker) und Überund Unterschreitung der Spannungstoleranzen bewirkt. Solche Netzrückwirkungen wirken sich störend auf andere Verbraucher aus und gefährden die Verfügbarkeit elektrotechnischer Anlagen. Eine zentrale Bedeutung haben dabei die von der Grundschwingung abweichenden höheren Frequenzanteile (Oberschwingungen), die zur Verzerrung der Kurvenform von Strom und Spannung führen. Eine Möglichkeit zur Kompensation von Oberschwingungen sind aktive harmonische Filter, die an einem geeignet gewählten Knotenpunkt einen Kompensationsstrom einspeisen und die Verzerrungsanteile des Netzstromes kompensieren.
Demo Videos
Creators: name: Presas, Marina
name: Araujo, Rosa
Publisher: name: Zenodo
Year: 2022

description: This deliverable presents the definition and steps made towards the development of a set of demonstrative videos presenting and guiding wine makers through the different smart services developed and deployed into the VitiGEOSS Platform. The platform offers integrated services for sub-seasonal and seasonal predictions, crop management, disease warning, business operations and sustainability monitoring. The videos have been designed following a common design format to ensure consistency between them.
Enhancing community detection using a network weighting strategy
Creators: name: De Meo, Pasquale
name: Ferrara, Emilio
name: Fiumara, Giacomo
name: Provetti, Alessandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Social and Information Networks (cs.SI)
subject: Data Structures and Algorithms (cs.DS)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: A community within a network is a group of vertices densely connected to each other but less connected to the vertices outside. The problem of detecting communities in large networks plays a key role in a wide range of research areas, e.g. Computer Science, Biology and Sociology. Most of the existing algorithms to find communities count on the topological features of the network and often do not scale well on large, real-life instances. In this article we propose a strategy to enhance existing community detection algorithms by adding a pre-processing step in which edges are weighted according to their centrality w.r.t. the network topology. In our approach, the centrality of an edge reflects its contribute to making arbitrary graph tranversals, i.e., spreading messages over the network, as short as possible. Our strategy is able to effectively complements information about network topology and it can be used as an additional tool to enhance community detection. The computation of edge centralities is carried out by performing multiple random walks of bounded length on the network. Our method makes the computation of edge centralities feasible also on large-scale networks. It has been tested in conjunction with three state-of-the-art community detection algorithms, namely the Louvain method, COPRA and OSLOM. Experimental results show that our method raises the accuracy of existing algorithms both on synthetic and real-life datasets.
description: 28 pages, 2 figures
title: AI-based chatbots as enabler for efficient external knowledge management in public administration
Creators: name: Wiethölter, Jost
name: Kühl, Linus
name: Feldmann, Carsten
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Artificial Intelligence
subject: Generative AI
subject: Large Language Models
subject: Chatbot
subject: DSRP

description: This study addresses the pressing issue of staff shortages in German public administrations through the lens of digitalization, focusing on the potential of AI-based chatbots to solve this problem by replacing human labour. Employing a Design Science Research Process (DSRP) methodology, the research synthesizes theoretical foundations and regulatory frameworks to develop a robust chatbot concept. The artifact presented is a comprehensive architectural framework integrating user-centric design, linguistic processing, and regulatory compliance. The proposed artifact navigates complex federal structures and diverse IT infrastructures, promoting accessibility and inclusivity. Implications suggest enhanced efficiency and accessibility in public service delivery for potentially increasing citizen satisfaction and decreasing employee workload. The study underscores the importance of legal compliance and the evolving regulatory landscape in AI deployment. Future research will involve prototyping and evaluating the artifact's performance and applicability throughout the course of the DSRP, thus contributing to the advancement of digital transformation in public administrations.
Bose-Einstein condensation and narrow-line photoassociation spectroscopy of calcium
Creators: name: Appel, Oliver
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Ultracold calcium atoms
subject: optical dipole traps
subject: Bose-Einstein condensation
subject: narrow-line photoassociation spectroscopy
subject: optical Feshbach resonances
subject: Ultrakalte Calcium-Atome
subject: optische Dipolfallen
subject: Bose-Einstein-Kondensation
subject: Photoassoziations-Spektroskopie schmaler Linien
subject: optische Feshbach-Resonanzen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Lithium Mediated Benzene Adsorption on Graphene and Graphene Nanoribbons
Creators: name: Krepel, Dana
name: Hod, Oded
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The anchoring of benzene molecules on lithium adsorption sites at the surface of graphene and nanoribbons thereof are investigated. The effects of adsorbate densities, specific adsorption locations, and spin states on the structural stability and electronic properties of the underlying graphene derivatives are revealed. At sufficiently high densities, bare lithium adsorption turns armchair graphene nanoribbons metallic and their zigzag counterparts half-metallic due to charge transfer from the adatom to the π electronic system. Upon benzene adsorption, the lithium cation encounters two π systems thus drawing charge back towards the benzene molecule. This, in turn, leads to the opening of a measurable bandgap, whose size and character are sensitive to the adsorbate density, thus indicating that a chemical detector based on lithium adsorbed graphene may be devised. Our results are therefore expected to support the design of novel graphene-based sensing and switching devices.
description: 27 pages, 16 figures
Lycopodium alpinum L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: Ph. alpinum L. Cat. 378. Var. tenue Kunth (Ph. commutatum Gaudin, Ph. alp. var. commutatum Boissier) - l: Barberine (Exk. Soc. Murith.); Vieux-Emosson (desgl.). - 3: Valsorey (Guyot); Les Dix (Pannatier); Grubenalp (J.); Törbel (Stebler). - 4: Eginental (Jaquet).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Break-up of the South Atlantic : a geophysical image of the continent-ocean transition zone and implications on lithospheric controls and mantle dynamics
Creators: name: Koopmann, Hannes
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Continental break-up
subject: plate tectonics
subject: magmatism
subject: Kontinentaldivergenz
subject: Plattentektonik
subject: Magmatismus
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: [no abstract]
Proton temperature anisotropy and magnetic reconnection in the solar wind: effects of kinetic instabilities on current sheet stability
Creators: name: Matteini, Lorenzo
name: Landi, Simone
name: Velli, Marco
name: Matthaeus, William H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Space Physics (physics.space-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We investigate the role of kinetic instabilities driven by a proton anisotropy on the onset of magnetic reconnection by means of 2-D hybrid simulations. The collisionless tearing of a current sheet is studied in the presence of a proton temperature anisotropy in the surrounding plasma. Our results confirm that anisotropic protons within the current sheet region can significantly enhance/stabilize the tearing instability of the current. Moreover, fluctuations associated to linear instabilities excited by large proton temperature anisotropies can significantly influence the stability of the plasma and perturb the current sheets, triggering the tearing instability. We find that such a complex coupling leads to a faster tearing evolution in a regime with larger perpendicular temperature when an ion-cyclotron instability is generated by the anisotropic proton distribution functions. On the contrary, in the presence of the opposite anisotropy, fire hose fluctuations excited by the unstable background protons with larger parallel temperature are not able to efficiently destabilize the current sheets, which remain stable for a long time after fire hose saturation. We discuss possible influences of this novel coupling on the solar wind and heliospheric plasma dynamics.
description: 6 pages, 6 figures, Accepted for publication in the Astrophysical Journal
title: Imitation modeling for the research of the impact of friction on the size of the cutting force during milling
Creators: name: Bondarenko, I.R.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article considers the issue of the influence of the friction coefficient on the magnitude of the cutting force during milling with the use of modern software systems for modeling machining processes using the example of the Deform 3D program. Results have been obtained that allow to evaluate the effect of friction coefficient variation, as well as the magnitude of the feed on the cutting force.
title: Capturing trust in public service encounters: Mapping trust along life event citizen journeys
Creators: name: Nowak, David
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Trust
subject: Citizen Journey
subject: Life event

description: Understanding and fostering citizen trust is crucial for effective public service delivery, where citizens must take risks vis a vis the state, or where collaboration and adherence to rules is especially important. This article proposes a systematic approach to develop a deeper comprehension of how trust is gained and lost during specific service interactions. Building on prior work on where trust may be gained or lost in a generic citizen journey [Di22b] this article proposes identifying life event services, where trust is particularly important and creating citizen journeys, from the perspective of relevant segments of the population.
title: Experimental investigation of the power consumed in the course of treating the internal surface of pipes with the help of an inertial tool
Creators: name: Bondarenko, I.R.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: On the basis of experimental studies, a regression dependence of the power developed by the drive during the processing of the inner surface of the pipes was obtained in order to remove technological deposits with an inertial-impact tool.
Biochemical analysis of the inhibition of Ralstonia solanacearum polygalacturonases by polygalacturonase-inhibiting proteins (PGIP) from tomato stems and biochemical, histochemical and molecular analysis of the silicon effect in the tomato (Solanum lycopersicum) - Ralstonia solanacearum interaction
Creators: name: Schacht, Tanja
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2009
Subjects: subject: Ralstonia solanacearum
subject: protein-protein-interaction
subject: silicon-induced resistance
subject: Protein-Protein-Interaktion
subject: Silizium-induzierte Resistenz
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
title: Let's talk about peace: mediation in civil conflict
Creators: name: Clayton, Govinda
Publisher: name: University of Kent
Year: 2023

description: This dissertation contributes to the growing literature centered on civil war mediation. Relying on a rationalist framework of conflict and actors, and employing quantitative methods, the research uncovers a number of findings relating to the features that assist and impede civil conflict peace brokers. Paper one demonstrates the importance of the relative belligerent strength. Using disaggregated dyadic data, the analysis shows that insurgents whose capacity more closely matches the state are more likely to see mediation in the first place, and ultimately end their conflict through a settlement This argument is developed in the second paper, which shows how belligerent capacity is affected by natural resources. The presence of oil is shown to increase the relative position of the incumbent, lowering the likelihood of mediation and agreement. Paper three focuses on the interaction between the characteristics of the mediator and the belligerents. It demonstrates that mediation is more likely to be accepted when the incumbent and third party share institutional similarities. Notably, non-democratic states are shown to have a significantly higher demand for mediation led by non-democratic third parties. In paper four, which is co-authored with Kristian Skrede Gleditsch, we extend previous research on mediation by assessing the predictive powers of features highlighted as important determinants for mediation. Our results suggest that a two stage model of mediation and success does relatively well in out-of-sample predictions. In total the dissertation makes a number of important contributions, including: using disaggregated data to facilitate assessments of competing mechanisms; adopting an innovative modelling procedure to better capture the selection effects underpinning mediation; and proposing a new means of result validation that offers a more comprehensive assessment of statistical results. In this way the dissertation bridges the gap between studies of civil war mediation, and theoretical and methodological innovations within the broader civil war literature.
title: Vorwort zur 7. Fachtagung RVI 2024
Creators: name: Wimmer, Maria A.
name: Räckers, Michael
name: Hünemohr, Holger
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Digitalisierung
subject: Digitale Transformatik
subject: E-Government
subject: Daten
subject: Nutzerbasierter Zugang
subject: Verwaltungsdigitalisierung
subject: KI im öffentlichen Sektor
subject: IT-Kompetenzen

description: Erfolgreiche, nachhaltige und Ressourcen schonende Digitalisierung von Staat und öffentlicher Verwaltung erfordern neue, effektivere Herangehensweisen sowie stärkere Zusammenarbeit und Vernetzung der Akteure. Bürgerinnen und Bürger, Beschäftigte im öffentlichen Dienst, Unternehmen und zivilgesellschaftliche Organisationen erwarten von der öffentlichen Hand, dass sie ihre Leistungen niedrigschwellig, nutzerorientiert, nachhaltig und zeitgemäß anbietet. Vielfach wird hinsichtlich Digitalisierung und Digitaler Transformation Deutschlands öffentliche Verwaltung aber kritisiert, dass die Maßnahmen Bürokratie verstärken anstatt sie abzubauen. Fehlschlagende Digitalvorhaben bremsen die Entwicklung unserer gesamten Gesellschaft und beschädigen das Vertrauen in Politik, Staat und öffentlicher Verwaltung. Die gemeinsame Fachtagung Rechts- und Verwaltungsinformatik der GI hat das Ziel, den Dialog zwischen Wissenschaft und Praxis zu befördern und die digitale Transformation von Staat und Verwaltung durch wissenschaftlich gesicherte Erkenntnisse substanziell voranzubringen. Der Tagungsband enthält insgesamt 15 wissenschaftliche Beitrgäge der RVI 2024 und des Workshops IT-Kompetenzen fr die digitale Verwaltung der Zukunft der Informatik-Jahrestagung.
UNA FORMULA PER LA FUNZIONE PSI CICLICA SPECIFICA
Creators: name: Bossi, Riccardo Jacopo
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 490401
subject: Algebra and number theory

description: In questo articolo esporrò una formula per la funzione psi ciclica specifica, esposta in [2], che si basa sul Teorema iniziale della funzione psi ciclica specifica, esposto in [2].
title: Nutzungsqualität im Fokus: Ergebnisse einer Fokusgruppe zur Wahrnehmung der Nutzungsqualität einer SSI-Anwendung mit Dongle
Creators: name: Ebert, Sarah
name: Krauß, Anna-Magdalena
name: Biedermann, Ben
name: Jürgenssen, Olivia
name: Anke, Jürgen
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Self-Sovereign Identity
subject: Fokusgruppe
subject: Nutzungsqualität
subject: Wallet
subject: Dongle
subject: Usability

description: Die vorliegende Arbeit untersucht die Nutzungsqualität von Self-Sovereign Identity (SSI) Wallets mit einem zusätzlichen Hardware-Kryptographie-Faktor. Mithilfe einer Fokusgruppe, bestehend aus fünf Teilnehmenden unterschiedlicher technischer Kompetenz, wurde eine Wallet mit Dongle im Kontext eines ÖPNV-Anwendungsfalls getestet und anschließend diskutiert. Die Ergebnisse unterstreichen die Notwendigkeit benutzerfreundlicher Technologien, um das Vertrauen der Nutzenden zu gewinnen. Zudem zeigen sie die Bedeutung von Transparenz und offenen Standards für die Akzeptanz der Lösung auf. Abschließend wurden Propositionen formuliert, die weitere Forschung ermöglichen.
Low frequency optical conductivity in graphene and in other scale-invariant two-band systems
Creators: name: Bácsi, Ádám
name: Virosztek, Attila
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate optical transitions of non-interacting electron systems consisting of two symmetric energy bands touching each other at the Fermi energy (e.g. graphene at half filling). Optical conductivity is obtained using Kubo formula at zero temperature. We show that for particles whose pseudospin direction is determined solely by the direction of their momentum, the optical conductivity has power law frequency dependence with the exponent $(d-2)/z$ where $d$ is the dimension of the system and $z$ is the dynamical exponent. According to our result two-dimensional systems with the above pseudospin characteristics always exhibit frequency-independent optical conductivity.
Communication and dissemination plan-first report
Creators: name: Presas, Marina
name: Araujo, Rosa
Publisher: name: Zenodo
Year: 2021

description: The present public document details the VitiGEOSS project dissemination and communication plan, aiming at reaching as many relevant actors as possible to inform them on the activities and results derived from the project. BSC and EUT are responsible for designing and implementing VitiGEOSS communication and dissemination strategy, but all consortium partners will be involved in it.
 The channels and platforms considered in the communication and dissemination plan are: social media channels, official website, materials to be distributed in key events, media relations to specialized media outlets, scientific publications, the organization of workshops and training activities, and attendance to strategic conferences, fairs and congresses where the project can be presented and the organisation of stakeholder engagement events, among others.
 This deliverable details the target groups, key messages addressed to each main group of stakeholders, communication and dissemination activities planned, requirements and the process of reporting and monitoring communication activities.
title: Verwaltungsdigitalisierung als Hebel zur Nachhaltigkeitstransformation im öffentlichen Sektor: Eine vorbereitende Forschungsskizze
Creators: name: Frank, Sander
name: von Lucke, Jörn
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2024
Subjects: subject: Verwaltungsdigitalisierung
subject: Nachhaltigkeit
subject: Transformation
subject: öffentlicher Sektor
subject: Nachhaltigkeitstransformation
subject: Nachhaltigkeitssteuerung

description: Die vorliegende Arbeit setzt auf den Herausforderungen und Potentiale auf, die durch die gleichzeitige Transformation von Digitalisierung und Klimawandel entstehen. Politik und Verwaltung sind gefordert, diese Transformationsprozesse erfolgreich für Staat, Wirtschaft und Gesellschaft zu koordinieren und zu meistern. Angesichts des Ziels einer nachhaltigen Entwicklung müssen die beiden Transformationen gemeinsam durchdacht und gestaltet werden, um Synergien zu nutzen und nachteilige Auswirkungen auszuschließen. Die Verwaltungswissenschaften sind gefordert, bei der Erforschung und Umsetzung entsprechender Strukturen, Synergien und Anwendungsbeispiele eine wichtige Rolle zu übernehmen. Verwaltungsdigitalisierung kann durch die Gestaltung neuartiger Lösungen als wirksamer Hebel fungieren und bisher ungenutzte Möglichkeiten erschließen. Im Rahmen eines Workshops wurden fünf Anwendungsfälle mit erheblichem Potenzial zur digitalen Nachhaltigkeitstransformation identifiziert, als Leitbilder ausgearbeitet und konkretisiert. Diese Ergebnisse bilden den Auftakt für eine weitere Diskussion und professionelle Umsetzungen, um einen Beitrag zur Nachhaltigkeitstransformation zu leisten.
Equisetum pratense L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: Ph. pratense L. Cat. 378. Bis 1900 m: bei Törbel (Stehler). Andere hohe Fundorte sind: Saflischmatten im Binntal, gegen 1850 m (Bernoulli); Saas-Fee, um 1800 m (A. Keller); zwischen Almagell und Zermeiggern, gegen 1700 m (idem); Zermatt, Grasplätze beim «Zermatterhof», 1616m (Becherer 1945). Var. nodosum (L.) Schreber - l: Martigny-Croix; Alesse;Haut d'Arbignon, 1740m, subvar. abbreviatum (Boissier) A. et G.; Le Rosel (alles: Garns). - 2: Ob Fully (Garns). - 3: FUSS des Mont bei Martigny (Closuit); St. Niklaus (Wolf). -3a: Gondoschlucht (Becherer). Die Art ist vielleicht erst im 19.Jahrhundert durch den Wiesenbau ins Wallis eingedrungen; die Varietät ist möglicherweise ursprünglich einheimisch.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
An extremely low-noise heralded single-photon source: a breakthrough for quantum technologies
Creators: name: Brida, G.
name: Degiovanni, I. P.
name: Genovese, M.
name: Piacentini, F.
name: Traina, P.
name: Della Frera, A.
name: Tosi, A.
name: Shehata, A. Bahgat
name: Scarcella, C.
name: Gulinatti, A.
name: Ghioni, M.
name: Polyakov, S. V.
name: Migdall, A.
name: Giudice, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Low noise single-photon sources are a critical element for quantum technologies. We present a heralded single-photon source with an extremely low level of residual background photons, by implementing low-jitter detectors and electronics and a fast custom-made pulse generator controlling an optical shutter (a LiNbO3 waveguide optical switch) on the output of the source. This source has a second-order autocorrelation g^{(2)}(0)=0.005(7), and an "Output Noise Factor" (defined as the ratio of the number of noise photons to total photons at the source output channel) of 0.25(1)%. These are the best performance characteristics reported to date.
Biochemical non-equivalence of the DSL proteins DLL1 and DLL3
Creators: name: Geffers, Insa
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2008
Subjects: subject: DLL1
subject: DLL3
subject: notch signaling
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Could strange stars be in the color-flavor-locked phase: Tested by their thermal evolutions
Creators: name: Cheng, Quan
name: Yu, Yun-Wei
name: Zheng, Xiao-Ping
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The thermal evolution of strange stars in both normal and color-flavor-locked (CFL) phases are investigated together with the evolutions of the stellar rotation and the r-mode instability. The heating effects due to the deconfinement transition of the stellar crust and the dissipation of the r-modes are considered. As a result, the cooling of the stars in the normal phase is found to be not very different from the standard one. In contrast, for the stars in the CFL phase, a big bump during the first hundred years and a steep decay ($\sim$7% in ten years) at the ages of $\sim10^{4-6}$ yrs are predicted in their thermal evolution curves. These unique features provide an effective observational test for determining whether or not the CFL phase is reached in strange stars. This thermal test method is independent of and complementary to the rotational test method, which is a direct consequence of the r-mode instability.
description: 6 pages, 4 figures, published in Physical Review D
Möglichkeiten und Grenzen der Messverfahren zur Bewertung von Solarwechselrichtern nach der neuen EN 55011
Creators: name: Scheck, Simon
name: Paulwitz, Christian
name: Weber, Stefan
Publisher: name: Aachen : Apprimus
Year: 2016
Subjects: subject: Norm
subject: Störsignal
subject: Fotovoltaik
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: Um die bis zur Edition 5 bestehende Lücke in der Normung zu schließen, werden in der neuen Ausgabe der EN 55011 (CISPR 11 Ed. 6.0) [1], der Produktfamiliennorm für industrielle, wissenschaftliche und medizinische Geräte, erstmals Messverfahren und Grenzwerte für die leitungsgebundene Störaussendung zwischen 150 kHz und 30 MHz an den Gleichspannungsschnittstellen von Geräten festgelegt, die an das Niederspannungsnetz angeschlossen und für den Einbau in Photovoltaik-Energieerzeugungssystemen (GCPC – Grid connected Power Conditioners) vorgesehen sind. Hierzu wurde eigens eine Netznachbildung (DC-NNB) definiert. Deren Aufgabe ist es, die vom Prüfling erzeugten hochfrequenten Störungen auszukoppeln, um diese dann auf einem entsprechenden Messgerät darstellen zu können. Des Weiteren soll dem Prüfling für den oben genannten Frequenzbereich eine definierte Impedanz an der zu untersuchenden Schnittstelle (hier: DC-Spannungsversorgung) geboten werden. Die Impedanz der Netznachbildung soll der einer realen Installation mit Photovoltaikgeneratoren (PV-Generator – Photovoltaikpaneele auf dem Dach) möglichst nahe kommen. Die dritte Aufgabe einer Netznachbildung ist es, eine ausreichende Entkopplung zwischen dem Prüflingsanschluss und dem speisenden Netz sicher zu stellen. Neben dem Standardmessverfahren mit Netznachbildungen in den Leistungszweigen des Prüflings werden speziell für Geräte größer 20 kVA zur Einhaltung der Grenzwerte der Klasse A, Gruppe 1 alternative Messverfahren angeboten. Die derzeit im Markt verfügbaren Gleichspannungs-Netznachbildungen sind auf eine Stromtragfähigkeit von 100 A begrenzt. Für die Alternativverfahren für Geräte größer 20 kVA sind in der oben genannten Norm [1] die Verwendung der Netznachbildungen als Spannungstastkopf bei der gleichzeitigen Messung mit einer HF-Stromzange zugelassen. Ziel dieses Beitrages ist es aufzuzeigen, inwiefern sich diese Messverfahren umsetzen lassen und wie es um die Vergleichbarkeit der alternativen Messverfahren bestellt ist, um eine zuverlässige Konformitätsaussage für Geräte aller Leistungsklassen sicherzustellen.
Background modeling for the GERDA experiment
Creators: name: Becerici-Schmidt, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The neutrinoless double beta (0nubb) decay experiment GERDA at the LNGS of INFN has started physics data taking in November 2011. This paper presents an analysis aimed at understanding and modeling the observed background energy spectrum, which plays an essential role in searches for a rare signal like 0nubb decay. A very promising preliminary model has been obtained, with the systematic uncertainties still under study. Important information can be deduced from the model such as the expected background and its decomposition in the signal region. According to the model the main background contributions around Qbb come from Bi-214, Th-228, K-42, Co-60 and alpha emitting isotopes in the Ra-226 decay chain, with a fraction depending on the assumed source positions.
description: 5 pages, 5 figures, used the template for the LaTeX class aipproc, contribution to LRT 2013, to be published in AIP Conference Proceedings
Interpretation of transverse tune spectra in a heavy-ion synchrotron at high intensities
Creators: name: Singh, R.
name: Boine-Frankenheim, O.
name: Chorniy, O.
name: Forck, P.
name: Haseitl, R.
name: Kaufmann, W.
name: Kowina, P.
name: Lang, K.
name: Weiland, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Two different tune measurement systems have been installed in the GSI heavy-ion synchrotron SIS-18. Tune spectra are obtained with high accuracy using these fast and sensitive systems. Besides the machine tune, the spectra contain information about the intensity dependent coherent tune shift and the incoherent space charge tune shift. The space charge tune shift is derived from a fit of the observed shifted positions of the synchrotron satellites to an analytic expression for the head-tail eigenmodes with space charge. Furthermore, the chromaticity is extracted from the measured head-tail mode structure. The results of the measurements provide experimental evidence of the importance of space charge effects and head-tail modes for the interpretation of transverse beam signals at high intensity.
title: Realization of the dynamic model of the three-mass «scsiem» on the basis of the generalized model
Creators: name: Neyman, L.A.
name: Neyman, V.Yu.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The relevance of the research is due to the need to improve and expand the possibilities of dynamic calculation when solving a complex task of analyzing and synthesizing various variants of single-coil synchronous electromagnetic machines of percussion action (SCSIEM). An example of the dynamical model based on the generalized one is considered for a three-mass SCSIEM with striker two-side free running-out powered from 50 Hz power supply trough a half-period rectifier.