cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Parameterised complexity of model checking and satisfiability in propositional dependence logic
Creators: name: Mahmood, Yasir
name: Meier, Arne
Publisher: name: Dordrecht [u.a.] : Springer Science + Business Media B.V
Year: 2021
Subjects: subject: Model checking
subject: Parameterised complexity
subject: Propositional dependence logic
subject: Satisfiability
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: Dependence Logic was introduced by Jouko Väänänen in 2007. We study a propositional variant of this logic (PDL) and investigate a variety of parameterisations with respect to central decision problems. The model checking problem (MC) of PDL is NP-complete (Ebbing and Lohmann, SOFSEM 2012). The subject of this research is to identify a list of parameterisations (formula-size, formula-depth, treewidth, team-size, number of variables) under which MC becomes fixed-parameter tractable. Furthermore, we show that the number of disjunctions or the arity of dependence atoms (dep-arity) as a parameter both yield a paraNP-completeness result. Then, we consider the satisfiability problem (SAT) which classically is known to be NP-complete as well (Lohmann and Vollmer, Studia Logica 2013). There we are presenting a different picture: under team-size, or dep-arity SAT is paraNP-complete whereas under all other mentioned parameters the problem is FPT. Finally, we introduce a variant of the satisfiability problem, asking for a team of a given size, and show for this problem an almost complete picture. © 2021, The Author(s).
Organisationsformen der Produktion
Creators: name: Nyhuis, Peter
name: Rochow, Niklas E.
name: Krause, Marilena
name: Pischke, Dennis
name: Seitz, Melissa
name: Kuprat, Vivian K.
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Variantenmix-Produktion
subject: Matrix-Produktion
subject: Modulare Montage
subject: Fertigungsprinzip
subject: Montageorganisation
subject: Produktionssysteme
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Die Motivation zur Erstellung dieses Papers entstand aus zahlreichen Diskussionen mit Vertretern produzierender Unternehmen und der unzureichenden Antwort der Wissenschaft auf die Fragestellung, welche Organisationsform die geeignetste für einen spezifischen Anwendungsfall darstellt. Dabei beginnt die Problematik schon bei der reinen Beschreibung der unterschiedlichen Organisationsformen der Produktion. Die in der Literatur bestehenden Systematiken differenzieren zumeist zwischen Fertigung und Montage – und dass unter der Verwendung ähnlicher Begrifflichkeiten bei unterschiedlicher Bedeutung. Dass auf diesem Wege zum einen kein einheitliches Verständnis entstehen und zum anderen keine gezielte Auswahl der für den betrachteten Anwendungsfall geeignetsten Organisationsform erfolgen kann, liegt auf der Hand. Das vorliegende Paper bietet sowohl der Wissenschaft als auch dem praktischen Anwender durch die entwickelte Beschreibungssystematik einen Überblick über mögliche Organisationsformen in der Produktion und damit allgemein eine Beschreibung sowohl der Fertigung als auch Montage. Mit der Variantenmix-Produktion wird zudem eine Organisationsform vorgestellt, die die neuartigen Entwicklungen in der Praxis systematisch beschreibbar macht und somit bei der Ausgestaltung spezifischer Organisationsformen unterstützt. Die hier dargestellte Beschreibungssystematik für die Organisationsformen der Produktion bildet zudem die Grundlagen für weitere Arbeiten am Institut für Fabrikanlagen und Logistik (IFA), die sich auf die Erforschung der Planung und Gestaltung neuartiger Organisationsformen sowie die Auswahl der für einen spezifischen Anwendungsfall geeignetsten Organisationsform aufgrund entsprechender Vor- und Nachteile fokussieren.
Delegates' Summit: Best Practice and Definitions - Concepts of Cognostic Addressing Structured and Non-structured Data
Creators: name: Rückemann, Claus-Peter
name: Pavani, Raffaella
name: Kovacheva, Zlatinka
name: Gersbeck-Schierholz, Birgit
name: Hülsmann, Friedrich
name: Naydenova, Ina
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2021
Subjects: subject: Data Science
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: Post-Summit Results, Delegates' Summit, September 20, 2021, The Eleventh Symposium on Advanced Computation and Information in Natural and Applied Sciences (SACINAS), The 19th International Conference of Numerical Analysis and Applied Mathematics (ICNAAM), September 20--26, 2021, Rhodes, Greece
Level of Service Measures for Biking: A Comparative Analysis of Calculation Methods
Creators: name: Day, Matthew M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: Traditional methods for computing level of service (LOS) have implicitly favored mobility at the expense of accessibility. The LOS concept was developed by highway engineers in the 1950s as a method of measuring the level of mobility provided by a certain facility (FDOT, 2002). It has been applied in recent years to alternative transportation modes such as walking, bicycling and public transit. This article analyzes and compares the results of applying several of the LOS methods that have been developed for alternative transportation modes to a study area in Chapel Hill, North Carolina.
Supplementary document for Measurement of Articular Cartilage Optical Properties in the Visible and Short Near Infrared Spectral Bands: Part I – Impact of Experimental Setup Parameters - 6318417.pdf
Creators: name: Kafian-Attari, Iman
name: Nippolainen, Ervin
name: Bergmann, Florian
name: Mirhashemi, Arash
name: Pakkari, Petri
name: Foschum, Florian
name: Kienle, Alwin
name: Töyräs, Juha
name: Afara, Isaac
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Supplementary document to the results of the main manuscript
Cosmological Tests of the Disformal Coupling to Radiation
Creators: name: Brax, Philippe
name: Burrage, Clare
name: Davis, Anne-Christine
name: Gubitosi, Giulia
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Light scalar fields can naturally couple disformally to Standard Model fields without giving rise to the unacceptably large fifth forces usually associated with light scalars. We show that these scalar fields can still be studied and constrained through their interaction with photons, and focus particularly on changes to the Cosmic Microwave Background spectral distortions and violations of the distance duality relation. We then specialise our constraints to scalars which could play the role of axionic quintessence.
Simulations for LISA & GRACE-Follow-On: Satellite constellations at Lagrangian points for LISA-like missions & Interferometer simulations for the GRACE Follow-On mission
Creators: name: Müller, Vitali
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität
Year: 2013
Subjects: subject: Space Laser Interferometry
subject: GRACE Follow-On
subject: Lagrangian Points
subject: Interferometrie
subject: Gravitationswelle
subject: GRACE Follow-On
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: This thesis is separated into two parts. The first part is about satellite orbits for space-based gravitational wave detectors. Gravitational waves are ripples in the four-dimensional spacetime and were firstly predicted by Albert Einstein. They can be caused by astrophysical events (e.g. merging black holes, stellar explosions) and manifest as length changes between objects, for example, satellites. The order of magnitude of the relative length changes corresponds approximately to the size of an atom over a measurement distance between Sun and Earth. However, even this tiny effect can be measured with laser light, interferometrically. In this thesis the construction of satellite constellations in the vicinity of the so-called Lagrangian points is investigated, which might be stable enough over the mission duration to allow interferometric measurements between the spacecrafts. Therefore, the fundamental dynamics of single objects in the proximity of Lagrangian points are studied, followed by attempts to construct constellations by combining different trajectories. Finally, numerical optimization techniques are applied to further improve the constellations. The second part of this thesis is concerned with an instrument for the GRACE Follow-On mission. This planned mission consists of two satellites in a low Earth orbit, which shall measure Earth’s gravity field. Therefore, the inter-satellite distance fluctuations need to be determined very precisely in the frequency range from 2 mHz to 100 mHz. For this purpose the Albert-Einstein-Institute develops in cooperation with industry and international partners a Laser Ranging Interferometer with a target precision better than 0.001 millimeter. An overview about the working principle of the instrument as well as the purpose of single components is presented. The contribution of various perturbations like spacecraft attitude jitter on the performance is computed. Finally, simulation results show how various misadjustments of components influence the measurements
Ultrashort self-induced transparency plasmon solitons
Creators: name: Marini, Andrea
name: Biancalana, Fabio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We study the interband self-induced transmission of surface plasmon polaritons in a gold film surrounded by an external Kerr medium. We model the optical propagation by using a version of the generalized nonlinear Schrodinger equation for the field envelope coupled to Bloch equations for valence electrons of gold, predicting self-induced transparency of ultrashort plasmon solitons with a pulse duration below 10 fs. We demonstrate that the Kerr nonlinearity from the surrounding dielectric can be used to compensate for the group velocity dispersion, and that the impact of dephasing and decay processes can be effectively reduced by the self-induced transmission mechanism.
Supplementary document for Measurement of Articular Cartilage Optical Properties in the Visible and Short Near Infrared Spectral Bands: Part I – Impact of Experimental Setup Parameters - 6420914.pdf
Creators: name: Kafian-Attari, Iman
name: Nippolainen, Ervin
name: Bergmann, Florian
name: Mirhashemi, Arash
name: Pakkari, Petri
name: Foschum, Florian
name: Kienle, Alwin
name: Töyräs, Juha
name: Afara, Isaac
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: Uncategorized

description: Modified supplementary material according to the BOEMSS style guidelines
Model-based Process Generation For Supporting Agile Shop Floor Management In SMEs
Creators: name: Torka, Jan
name: Lange, Annika
name: Scholz, Julia-Anne
name: Knothe, Thomas
name: Busse, Dirk
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Automated process generation
subject: Shop floor management system
subject: Customer-specific production
subject: Agility
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In recent years, the framework conditions on the Chinese market for machine and equipment manufacturing have changed significantly. By now, products are expected to be customized and at the same time offered at low prices with fast delivery times. Thereby, customer-specific production processes are becoming increasingly important in manufacturing. In addition, German small and medium-sized companies are confronted with a progressively turbulent business environment. For example, Chinese customers expect that orders can still be changed after they had been placed. Hence, companies must be able to identify shortterm changes and individual requirements at an early stage. In order to withstand the competitive pressure, alternative courses of action must be created by generating new process variants quickly and reliably. To address this challenge, an approach for the automated generation and realization of processes based on an integrated enterprise model for supporting agile shop floor management as part of an agile process management system is being developed in the German-Chinese joint research project “MAP” and proposed in this paper. Starting with an introduction into the subject matter, the development gap is demonstrated and an approach as well as an early prototype is presented, followed by an outlook on further development in the research project.
Die Optimierung einer Lehrbuchunidad durch die Flipped Classroom-Methode unter Berücksichtigung des Entdeckenden Lernens
Creators: name: Wachenhausen, Nina
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2021
Subjects: subject: Umgedrehter Unterricht
subject: Integriertes Lernen
subject: Spanischunterricht
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::370 | Erziehung, Schul- und Bildungswesen

description: Flipped Classroom (FC) ist eine junge Unterrichtsmethode, die nicht ausschließlich, aber vorzugsweise mit Erklärvideos die Wissensaneignung seitens der Schülerinnen und Schüler (SuS) aus dem Unterricht vorverlagert. Die Lernenden setzen sich demnach zu Hause mit dem neuen Lerngegenstand auseinander und kommen vorbereitet in den Unterricht. In der gewonnenen Unterrichtszeit findet ein Austausch über den Lerninhalt statt, das Wissen wird diskutiert, vertieft und kollaborativ erweitert sowie allgemein schülerorientierter gelernt. Verbreitung findet der FC seit etwa zehn Jahren zunächst in den USA. Später wurde die Methode erst in deutschen Hochschulen rezipiert, bis sie im Jahr 2014 auch Einzug in das deutsche Schulsystem fand.
Tailoring the electronic properties of SrRuO3 films in SrRuO3/LaAlO3 superlattices
Creators: name: Liu, Z. Q.
name: Yang, M.
name: Lü, W. M.
name: Huang, Z.
name: Wang, X.
name: Zhang, B. M.
name: Li, C. J.
name: Gopinadhan, K.
name: Zeng, S. W.
name: Annadi, A.
name: Feng, Y. P.
name: Venkatesan, T.
name: Ariando
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The electronic properties of SrRuO3/LaAlO3 (SRO/LAO) superlattices with different interlayer thicknesses of SRO layers were studied. As the thickness of SRO layers is reduced, the superlattices exhibit a metal-insulator transition implying transformation into a more localized state from its original bulk metallic state. The strain effect on the metal-insulator transition was also examined. The origin of the metal-insulator transition in ultrathin SRO film is discussed. All the superlattices, even those with SRO layers as thin as 2 unit cells, are ferromagnetic at low temperatures. Moreover, we demonstrate field effect devices based on such multilayer superlattice structures.
description: 19 pages, 5 figures, 1 table
Pricing for Smart-Product-Service-Systems in Subscription Business Models for Production Industries
Creators: name: Leiting, Tobias
name: Schuh, Günther
name: Stich, Volker
name: Frank, Jana
Publisher: name: Hannover : publish-Ing.
Year: 2021
Subjects: subject: Digitalisation
subject: Subscription business
subject: Value-based pricing
subject: Value-in-use
subject: Data-based pricing
subject: Smartproduct-service-systems
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In the production industry, subscription business models have the potential to create long-term relationships where a supplier provides a continuous value-oriented service to a customer based on digitalisation. Monetising this increase in value through pricing represents a central challenge for suppliers in subscription business. Unlike the current dominant transactional business, the focus of pricing is on the value-in-use of the customer (e.g. on the increase in output for the customer). In this regard, there is so far no pricing approach for practice that allows the linking of the performance data of the customer with the periodically charged price. However, in subscription businesses, such an approach is required to create win-win situations for the customer and supplier through continuous performance improvement. Therefore, this paper develops a novel process model for pricing of smart-product-service-systems in subscription business for production industries. This process can serve as basis for suppliers of subscriptions in the production industry to align pricing with the created value-in-use. In the long term, this allows companies to systematically develop their pricing to monetise the potential of digitalisation.
New Jersey's Gold Coast: Revisiting Public Access and the Hudson River Waterfront Walkway
Creators: name: Strauss, Andrew L.
name: Wang, Geraldine
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1992

description: Once written off by the public, the environmental quality and economic potential of the Hudson River waterfront has become a centerpiece of New Jersey's public policy debate in recent years. Over the last decade, the shoreline of the Hudson River, stretching 18 miles from the George Washington Bridge to Bayonne and crossing nine densely developed municipalities, has undergone significant redevelopment. Formerly the domain of heavy industry, warehousing and shipping, the waterfront has long been all but inaccessible to the general public. With the implementation of a state walkway plan and procedures over the last decade, the public is for the first time gaining direct access to the water's edge.
Sempervivum arachnoideum L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: S. arachnoideum L. Cat. 151 und 426. Ssp. Doellianum (C. B. Lehm.) Schinz et Keller (S. arachn. L. s. str.) - Verbreitet. Bis 3125 m: Gornergrat bei Zermatt (Braun-Blanquet 1919); andere hohe Stellen um Zermatt sind: Oberrothorn,bis3100m (idem 1919),ebenda bis3120m (Gilomen 1938); Unterrothorn, bis zum Gipfel, 3103 m (Braun-Blanquet 1919). Var. subacaule Beauverd - 3: Visperterminen (Beauverd). Forma ascidiopetalum («ascidipetalum») R.Chodat- 3:Valsorey (Mlle J.Chodat). Ssp. tomentosum (C. B. Lehm. et Schnittsp.) Schinz et Keller - l: Les Marécottes (J.); Les Combasses (J.); Le Rosel (Garns). - 2: Ob Niedergampel (Becherer und Schatzmann); Brigerbad- Mund (BechererundThommen);Naters-Birgisch,ob der Lötschbergbahn(Seitter). - 3: Liddes (P.); Valsorey (Garns); Saastal (A. Keller); Visperterminen (Beauverd).- 3a:Laggintal(J.). 4: Binn-Imfeld (Binz); Fiesch (P.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Climatic controls on leaf wax hydrogen isotope ratios in terrestrial and marine sediments along a hyperarid-to-humid gradient
Creators: name: Gaviria-Lugo, Nestor
name: Läuchli, Charlotte
name: Wittmann, Hella
name: Bernhard, Anne
name: Frings, Patrick
name: Mohtadi, Mahyar
name: Rach, Oliver
name: Sachse, Dirk
Publisher: name: Freie Universität Berlin
Year: 2023
Subjects: subject: climatic controls
subject: leaf wax hydrogen isotope ratios
subject: terrestrial and marine sediments
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: The hydrogen isotope composition of leaf wax biomarkers (δ2Hwax) is a valuable tool for reconstructing continental paleohydrology, since it serves as a proxy for the hydrogen isotope composition of precipitation (δ2Hpre). To yield robust palaeohydrological reconstructions using δ2Hwax in marine archives, it is necessary to examine the impacts of regional climate on δ2Hwax and assess the similarity between marine sedimentary δ2Hwax and the source of continental δ2Hwax. Here, we examined an aridity gradient from hyperarid to humid along the Chilean coast. We sampled sediments at the outlets of rivers draining into the Pacific as well as soils within catchments and marine surface sediments adjacent to the outlets of the studied rivers and analyzed the relationship between climatic variables and δ2Hwax values. We found that apparent fractionation between leaf waxes and source water is relatively constant in humid and semiarid regions (average: −121 ‰). However, it becomes less negative in hyperarid regions (average: −86 ‰) as a result of evapotranspirative processes affecting soil and leaf water 2H enrichment. We also observed that along strong aridity gradients, the 2H enrichment of δ2Hwax follows a non-linear relationship with water content and water flux variables, driven by strong soil evaporation and plant transpiration. Furthermore, our results indicate that δ2Hwax values in marine surface sediments largely reflect δ2Hwax values from the continent, confirming the robustness of marine δ2Hwax records for paleohydrological reconstructions along the Chilean margin. These findings also highlight the importance of considering the effects of hyperaridity in the interpretation of δ2Hwax values and pave the way for more quantitative paleohydrological reconstructions using δ2Hwax.
Arts, Gentrification, and Planning for Creativity
Creators: name: Grodach, Carl
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Recent decades have seen an almost obsessive focus on creativity in an urban development context. Yet creativity has come to be prized not so much for the intrinsic values of imagination, innovation, and experimentation as for the possibility to exploit these qualities as a means of urban revitalization and wealth generation. This emphasis on policy has contributed to the misplaced assumption that artistic activity causes gentrification and displacement. At the same time, it often sets in motion programs that are detrimental to the creative environments such policies claim to support. It is time to end the current approach to creative city planning: the arts as amenities catalyze land development and lure upscale consumption.
A mata de Araucárias e o Planalto do Canoinhas (Santa Catarina
Creators: name: Martins, Felipe de Castro Horta Hoffmann
Publisher: name: Zenodo
Year: 2023
Subjects: Araucárias
Bacia Hidrográifca
Análise da Paisagem
Floresta
Consevação

description: Professor de Geografia, fofógrafo e mestre em Ciências Ambientais (IFC).
description: Esta produção sintetiza o trabalho realizado ao longo do curso do programa de Pós­ graduação, Mestrado Profissional em Tecnologia e Ambiente (PPGTA) do Instituto Federal Catarinense, campus Araquari - Santa Catarina, Brasil. A intenção com a elaboração de um fotolivro-técnico é, de alguma maneira, transmitir os resultados de uma pesquisa científica em um produto onde dialogam a arte visual fotográfica e o conteúdo alcançado na pesquisa. Deixando acessível à comunidade interessada alguns resultados materializados neste produto. A ideia central do trabalho original que embasa este livro, consistiu em buscar perceber como se deu a dispersão geográfica da Floresta Ombrófila Mista (FOM), a Mata de Araucárias, ao longo de um período de tempo, em uma área de dimensões expressivas, com uso de ferramentas e recursos de sensoriamento remoto e geoprocessamento. Desta maneira optou-se pela utilização da base de dados da Fundação Mata Atlântica, trabalho estruturado em parceria com o Instituto Nacional de Pesquisas Espaciais (INPE), que anualmente disponibiliza um Atlas sobre o Bioma, e sobre tal, a análise da dispersão específica do ecossistema da Mata de Araucárias pelo período de 20 anos (de 2000 a 2020), no contexto da Região Hidrográfica do Planalto de Canoinhas (RH5) no norte do Estado de Santa Catarina.
Heavy quark production and gluon saturation in double parton scattering at LHC
Creators: name: Cazaroto, E. R.
name: Goncalves, V. P.
name: Navarra, F. S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The production of $c\bar{c}c\bar{c}$, $b\bar{b}b\bar{b}$ and $c\bar{c}b\bar{b}$ pairs considering double parton scattering at LHC energies is investigated. We estimate the contribution of saturation effects to the different final states and predict the energy dependence of the cross sections. Moreover, we estimate the ratio between the double and single parton scattering cross sections for the full rapidity range of the LHC and for the rapidity range of the LHCb experiment. For the full rapidity range we confirm a previous prediction, namely that for charm production the double parton scattering contribution becomes comparable with the single parton scattering one at LHC energies. We also demonstrate that this result remains valid when one introduces saturation effects in the calculations. Finally we show that the production of $c\bar{c}b\bar{b}$ contributes significantly to bottom production. For the LHCb kinematical range the ratio is strongly reduced.
description: 8 pages, 11 figures
Informationsverhalten und Wissenschaftskommunikation: Wahrnehmung der Relevanz und Selektion des Angebots von Konferenzen
Creators: name: Altemeier, Franziska
Publisher: name: Hildesheim : Stiftung Universität Hildesheim
Year: 2021
Subjects: subject: Informationsverhalten
subject: Wissenschaftskommunikation
subject: Konferenzen
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft

description: Wissenschaftliche Konferenzen sind ein elementarer Bestandteil der akademischen Arbeit. Dennoch ist bisher nicht untersucht, wie sich Forschende über diese informieren. Ziel vorliegender Arbeit ist es daher, einen ersten detaillierten Einblick in das Informationsverhalten von Forschenden bei der Suche nach Konferenzen zu erhalten. Dabei soll beantwortet werden, welche Informationsquellen Forschende nutzen und welche Rolle die aktive Suche in diesem Zusammenhang spielt. Außerdem soll beantwortet werden, anhand welcher Informationen und Kriterien sie über eine Teilnahme entscheiden und ob Konferenzrankings in diesem Zusammenhang relevant sind. Zur Zielerreichung wurden um die Information Horizons Methode kombinierte Experteninterviews mit neun Forschenden der Sprachwissenschaft durchgeführt. Diese zeigen, dass persönliche Informationsnetzwerke und Verteiler eine besonders wichtige Rolle spielen. Eine aktive Suche spielt hingegen eine untergeordnete Rolle. Konferenzrankings sind allen Teilnehmern unbekannt, sie entscheiden anhand ausgewählter Konferenzfaktoren sowie persönlichen Faktoren über eine Teilnahme.
Evaluating the quality of selective emitter structures by imaging the emitter saturation current density
Creators: name: Müller, M.
name: Altermatt, Pietro P.
name: Schlegel, K.
name: Fischer, G.
Publisher: name: Amsterdam : Elsevier BV
Year: 2012
Subjects: subject: Emitter saturation current density
subject: Photoluminescence
subject: Selective emitter
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft::333 | Boden- und Energiewirtschaft::333,7 | Natürliche Ressourcen, Energie und Umwelt

description: A method to derive the emitter saturation current density J0e with lateral resolution is applied to investigate selective emitter structures. The method uses PL lifetime imaging at several injection densities to laterally evaluate J0e by applying the method of Kane and Swanson [1] pixel by pixel. Samples with two-sided diffused emitters on lowlydoped Cz wafers were used to produce selective emitter structures by laser doping of the phosphorus-rich glass (LDSE). By comparison of experimental and numerical simulation results of J0e linescans, a limited resolution of a feature size of an inhomogeneous emitter is determined to be theoretically between 0.5-1.0 mm and experimentally about 2 mm. The method was successfully applied to investigate the dependence of J0e on the laser power of a selective emitter structure. The expected behaviour of a maximum J0e for medium laser intensities is observed. The method is suitable to evaluate the selective emitter process and its optimization.
Solving Linear Equations Using a Jacobi Based Time-Variant Adaptive Hybrid Evolutionary Algorithm
Creators: name: Jamali, A. R. M. Jalal Uddin
name: Hashem, M. M. A.
name: Rahman, Md. Bazlar
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Large set of linear equations, especially for sparse and structured coefficient (matrix) equations, solutions using classical methods become arduous. And evolutionary algorithms have mostly been used to solve various optimization and learning problems. Recently, hybridization of classical methods (Jacobi method and Gauss-Seidel method) with evolutionary computation techniques have successfully been applied in linear equation solving. In the both above hybrid evolutionary methods, uniform adaptation (UA) techniques are used to adapt relaxation factor. In this paper, a new Jacobi Based Time-Variant Adaptive (JBTVA) hybrid evolutionary algorithm is proposed. In this algorithm, a Time-Variant Adaptive (TVA) technique of relaxation factor is introduced aiming at both improving the fine local tuning and reducing the disadvantage of uniform adaptation of relaxation factors. This algorithm integrates the Jacobi based SR method with time variant adaptive evolutionary algorithm. The convergence theorems of the proposed algorithm are proved theoretically. And the performance of the proposed algorithm is compared with JBUA hybrid evolutionary algorithm and classical methods in the experimental domain. The proposed algorithm outperforms both the JBUA hybrid algorithm and classical methods in terms of convergence speed and effectiveness.
description: arXiv admin note: substantial text overlap with arXiv:1304.3200, arXiv:1304.2097
Keynote Address at the 39th Annual North Carolina Planning Conference and Robert and Helen Siler Lecture
Creators: name: Peirce, Neal R.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1996

description: Of course I was immensely pleased when my old friend and colleague Bob Siler asked if I would be willing to give this address, the first in a series of what are to be regular Siler Lectures. My family and I lived across the street from Bob and Helen Siler in Washington for many years, enjoying many good times together. Bob and I even accompanied each other on the first big trip of American city planners to China in 1979. He always knew something of value about every city in America, and I am pleased that our relationship continues. When Bob called, my first reaction was that I would talk about the two recent so-called "Peirce Reports," which my colleague Curtis Johnson and I have done in North Carolina. The first, entitled "Triangle Needs a New Vision for the '90s," was published by the Raleigh News & Observer in September 1993. The second, "Shaping A Shared Future," appeared in the Charlotte Observer early last autumn. But then it struck me how odd it is to talk about urban regions in North Carolina. Back in the early 1970s, when I was preparing the North Carolina chapter of my book, The Border South States, the story was quite different. The narrative was not of sparkling cities on hills, or even great historic seaports, but of waves of hardy yeomen struggling to farm tobacco or being drawn into one-industry towns to make textiles or furniture.
Magnetic field induced ordering in SrDy2O4
Creators: name: Cheffings, T H
name: Lees, M R
name: Balakrishnan, G
name: Petrenko, O A
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Heat capacity measurements were used to investigate the magnetic ordering processes in single crystal samples of SrDy2O4 in a magnetic field applied along the [010] and [001] directions. In zero field this compound appears to be magnetically disordered down to at least 0.39 K. A magnetic field applied along the [010] direction induces a very sharp transition at 20 kOe, seen as a strong peak in the heat capacity versus field, C(H) curves, while for H // [001], the magnetisation process is accompanied by the development of only broad features in the C(H) curves. The process of field induced ordering in \sdo\ appears to be rather remarkable even in the context of the unusual phase transitions observed in other geometrically frustrated magnetic systems consisting of hexagons and triangles.
description: 10 pages, 7 figures, to appear in J. Phys.: Cond. Matt. (2013)
Increased Light Harvesting by Structured Cell Interconnection Ribbons: An Optical Ray Tracing Study Using a Realistic Daylight Model
Creators: name: Holst, Hendrik
name: Schulte-Huxel, Henning
name: Winter, Matthias
name: Blankemeyer, Susanne
name: Witteck, Robert
name: Vogt, Malte R.
name: Booz, Thomas
name: Distelrath, Fabian
name: Köntges, Marc
name: Bothe, Karsten
name: Brendel, Rolf
Publisher: name: London : Elsevier Ltd.
Year: 2016
Subjects: subject: light harvesting string (LHS)
subject: ray tracing
subject: realistic irradiation
subject: Angular distribution
subject: Crystalline materials
subject: Irradiation
subject: Location
subject: Photovoltaic cells
subject: Cell interconnection
subject: Irradiation conditions
subject: Module efficiency
subject: Module performance
subject: Optical ray tracing
subject: Ray tracing simulation
subject: Spectral distribution
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: A key for increasing the module efficiency is improved light harvesting. The structuring of solar cell interconnection ribbons (CIR) is a promising option for improved light harvesting as it can easily be integrated into current module production. We perform ray tracing simulations of complete PV modules in 3D exhibiting geometric features such as profiled CIR and surface textured cells. We evaluate the increase in module performance by a light harvesting string (LHS) under realistic irradiation conditions with respect to angular and spectral distribution. Using the realistic irradiation for a location in Germany, a location at the polar circle and a location at the equator we simulate the enhancement of short-circuit current density Jsc resulting from the use of LHS. Our results show Jsc gains between 1.00% and 1.86% depending on the location and module orientation. We demonstrate the applicability of our model by comparing measurements and simulations for a one-cell module that we measure and simulate under various angles of the light incidence.
Detection of CO absorption in the atmosphere of the hot Jupiter HD 189733b
Creators: name: Rodler, Florian
name: Kürster, Martin
name: Barnes, John R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: With time-series spectroscopic observations taken with the Near Infrared Spectrometer (NIRSPEC) at Keck II, we investigated the atmosphere of the close orbiting transiting extrasolar giant planet, HD 189733b. In particular, we intended to measure the dense absorption line forest around 2.3 micron, which is produced by carbon monoxide (CO). CO is expected to be present in the planetary atmosphere, although no detection of this molecule has been claimed yet. To identify the best suited data analysis method, we created artificial spectra of planetary atmospheres and analyzed them by three approaches found in the literature, the deconvolution method, data modeling via chi^2-minimization, and cross-correlation. As a result, we found that cross-correlation and chi^2-data modeling show systematically a higher sensitivity than the deconvolution method. We analyzed the NIRSPEC data with cross-correlation and detect CO absorption in the day-side spectrum of HD 189733b at the known planetary radial velocity semi-amplitude with 3.4 sigma confidence.
description: accepted for publication in MNRAS
RESISTIRE factsheet: Crisis as a Continuum: Learning from an Inclusive Feminist Crisis Response
Creators: name: Altınay, Ayşe Gül
name: Türker, Nazlı
name: Ensari, Pınar
name: Tzanakou, Charoula
name: Strid, Sofia
name: Belloso, Maria Lopez
name: Harroche, Audrey
Publisher: name: Zenodo
Year: 2023
Subjects: Gender+
COVID-19
crisis response
policy recommendation
crisis management

description: As a way of harvesting our collective insights from the RESISTIRÉ research, we 1) propose the concept of ‘crisis as a continuum’ as an essential framework for crisis prevention, response, recovery, and monitoring, and 2) suggest that public authorities at all levels, including the European Union, support and learn from an inclusive feminist crisis response to prevent and better manage future crises. These recommendations are based on the three cycles of RESISTIRÉ research and supported by project factsheets that aim to provide a conceptual framework for approaching future crises.
High resolution probe of coherence in low-energy charge exchange collisions with oriented targets
Creators: name: Leredde, A.
name: Fléchard, X.
name: Cassimi, A.
name: Hennecart, D.
name: Pons, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The trapping lasers of a magneto-optical trap (MOT) are used to bring Rb atoms into well defined oriented states. Coupled to recoil-ion momentum spectroscopy (RIMS), this yields a unique MOTRIMS setup which is able to probe scattering dynamics, including their coherence features, with unprecedented resolution. This technique is applied to the low-energy charge exchange processes Na$^+$+Rb($5p_{\pm 1}$) $\rightarrow$ Na($3p,4s$)+Rb$^+$. The measurements reveal detailed features of the collisional interaction which are employed to improve the theoretical description. All of this enables to gauge the reliability of intuitive pictures predicting the most likely capture transitions.
Review on Soil Solidification and Heavy Metal Stabilization by Microbial-Induced Carbonate Precipitation (MICP) Technology
Creators: name: Xu, Fengli
name: Wang, Dongxing
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Space Science
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences

description: Microbial-induced carbonate precipitation (MICP) as a novel eco-friendly bioremediation method has been applied tentatively in soil solidification and heavy metal stabilization. In order to deeply study the theoretical knowledge of MICP and its application in environmental engineering, this review summarizes the main mechanisms of MICP, including biosorption and biomineralization. It is proposed innovatively that bacterial cell wall and extracellular polymeric substances (EPS) can provide ions binding sites during the process of biomineral nucleation due to negative charges and functional groups. Engineering properties of soil are regulated, such as increase of unconfined compressive strength (UCS) and shear stress, decrease of permeability and improvement of erosion resistance. Supposing the available CaCO3 content (CCC), UCS can be estimated by two boundary lines with an intersection angle of 2.72°. The great bioremediation capacity of metal cations/anions greatly depends upon carbonate precipitation/coprecipitation. Biotransformation and bioaccumulation of metal poisonousness should be considered as essential mechanisms in bacteria. Finally, according to the authors’ knowledge, current deficiencies and future research directions for the technology were pointed out, which might be beneficial to the optimization, application and generalization of MICP technology.
Tractability frontiers in probabilistic team semantics and existential second-order logic over the reals
Creators: name: Hannula, Miika
name: Virtema, Jonni
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2022
Subjects: subject: Blum-Shub-Smale machine
subject: Dependence logic
subject: Metafinite structures
subject: Team semantics
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik
subject: Dewey Decimal Classification::100 | Philosophie

description: Probabilistic team semantics is a framework for logical analysis of probabilistic dependencies. Our focus is on the axiomatizability, complexity, and expressivity of probabilistic inclusion logic and its extensions. We identify a natural fragment of existential second-order logic with additive real arithmetic that captures exactly the expressivity of probabilistic inclusion logic. We furthermore relate these formalisms to linear programming, and doing so obtain PTIME data complexity for the logics. Moreover, on finite structures, we show that the full existential second-order logic with additive real arithmetic can only express NP properties. Lastly, we present a sound and complete axiomatization for probabilistic inclusion logic at the atomic level. © 2022 The Author(s)
Abell 48 - a rare WN-type central star of a planetary nebula
Creators: name: Todt, H.
name: Kniazev, A. Y.
name: Gvaramadze, V. V.
name: Hamann, W. -R.
name: Buckley, D.
name: Crause, L.
name: Crawford, S. M.
name: Gulbis, A. A. S.
name: Hettlage, C.
name: Hooper, E.
name: Husser, T. -O.
name: Kotze, P.
name: Loaring, N.
name: Nordsieck, K. H.
name: O'Donoghue, D.
name: Pickering, T.
name: Potter, S.
name: Romero-Colmenero, E.
name: Vaisanen, P.
name: Williams, T.
name: Wolf, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A considerable fraction of the central stars of planetary nebulae (CSPNe) are hydrogen-deficient. Almost all of these H-deficient central stars (CSs) display spectra with strong carbon and helium lines. Most of them exhibit emission line spectra resembling those of massive WC stars. Therefore these stars are classed as CSPNe of spectral type [WC]. Recently, quantitative spectral analysis of two emission-line CSs, PB 8 and IC 4663, revealed that these stars do not belong to the [WC] class. Instead PB 8 has been classified as [WN/WC] type and IC 4663 as [WN] type. In this work we report the spectroscopic identification of another rare [WN] star, the CS of Abell 48. We performed a spectral analysis of Abell 48 with the Potsdam Wolf-Rayet (PoWR) models for expanding atmospheres. We find that the expanding atmosphere of Abell 48 is mainly composed of helium (85 per cent by mass), hydrogen (10 per cent), and nitrogen (5 per cent). The residual hydrogen and the enhanced nitrogen abundance make this object different from the other [WN] star IC 4663. We discuss the possible origin of this atmospheric composition.
description: 12 pages, 10 figures, accepted for publication in MNRAS
Civic Art, Civic Life and Urbanism
Creators: name: Westfall, Carroll William
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1999

description: Let me lay out some premises of what follows. These premises can be known, but they cannot be proven. They reside in the realm of articles of faith, of propositions that are self-evident to the wise, and in the domain of truth. They belong in nature, and knowing them helps define human nature. One such point is this: The mature, sane person understands that the most urgent task he faces is the one posited in the New Testament and posed by the Delphic oracle: Know thyself. Another is this: There have been wise people before us who have something useful to teach us. There is a third one: To know oneself, to draw on what others have to teach, requires participation a community, or more precisely, in three communities. One is composed of those who have preceded us and with whom we have an affiliation. Another is made up of our contemporaries. And a third is formed from those yet to come whose lives we will have improved through our actions. And finally there is this: Not all things are of equal value. Things that promote knowledge of oneself, things whose value has allowed them to survive across time, and things that bind us across time and into communities are to be valued above all other things.
Assessment of Potent Phosphate-Solubilizing Bacteria Isolated from the Olive Tree Rhizosphere Grown on Phosphate Sludge and Their Effect on Common Bean Growth
Creators: name: Ait-Ouakrim, El Houcine
name: Chakhchar, Abdelghani
name: Modafar, Cherkaoui El
name: Douira, Allal
name: Amir, Soumia
name: Ibnsouda-Koraichi, Saad
name: Belkadi, Bouchra
name: Filali-Maltouf, Abdelkarim
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology
subject: Computational Biology

description: One of the most restricting macronutrients for crop yield worldwide is phosphorus, which is often less than 1% of the total amount contained in soils. To promote its bioavailability, there are microorganisms considered vital that can solubilize and mineralize their pools in soils. In the current study, we assessed the potential of phosphate-solubilizing bacteria (PSB), isolated from the olive tree rhizosphere grown on phosphate sludge, to solubilize phosphate, promote plant growth, and tolerate abiotic stresses. Based on 16S rRNA gene sequencing, twenty-four PSB strains were identified and retained for in vitro analysis. According to the results, all the strains were able to solubilize the Moroccan rock phosphate, with soluble phosphate concentrations ranged from 5.34 µg/mL to 227 µg/mL. Furthermore, the majority of the strains are thermo-tolerant and halotolerant. Nonetheless, only five strains produced indole acetic acid. Regarding biocontrol potentialities, several PSB strains were characterized by producing hydrogen cyanide and hydrolytic enzymes (cellulase, and chitinase), of which three strains identified as Pseudomonas moraviensis, Bacillus cereus, and Bacillus aryabhattai, with a remarkable multi-trait combination were selected for antagonism and co-inoculation tests. The findings revealed that these PSB strains significantly inhibited Fusarium oxysporum (17.65%–62.35%) and Verticillium dahliae (52.35%–66.87%) and promoted common bean growth. The consortium of the three strains showed the best results by significantly increasing both plant height and tap root length and dry biomass compared to individual inoculation. The PSB selected from the olive tree rhizosphere growing on phosphate sludge have the potential to be useful as biofertilizer and biocontrol agents for attaining sustainable food crop production.