cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
KKM type theorems with boundary conditions
Creators: name: Musin, Oleg R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Topology (math.AT)
subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We consider generalizations of Gale's colored KKM lemma and Shapley's KKMS theorem. It is shown that spaces and covers can be much more general and the boundary KKM rules can be substituted by more weaker boundary assumptions.
description: 13 pages, 2 figures. arXiv admin note: text overlap with arXiv:1406.6672 by other authors
title: An Overview of User Interface and Interaction Design Patterns for VR, AR, and MR Applications
Creators: name: Görlich, Daniel
name: Akincir, Tayfun
name: Meixner, Gerrit
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Virtual Reality
subject: User Interface
subject: Pattern
subject: Norm

description: While there are already extensive pattern languages and collections in many application areas of computer science, one still must search intensively for user interface and interaction design patterns for virtual, augmented and mixed reality. The search for such patterns proves to be difficult and time-consuming. Some collections are already offline and either lost or at best still accessible via web.archive.org, and sometimes one must contact the original authors when the relevant information is not publicly available. This paper therefore presents 269 results of such an extensive search, but also provides a snapshot that is suitable for saving patterns and pattern collections from oblivion if their corresponding websites should go offline.
Generalization of the tensor renormalization group approach to 3-D or higher dimensions
Creators: name: Teng, Peiyuan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In this paper, a way of generalizing the tensor renormalization group(TRG) is proposed. Mathematically, the connection between patterns of tensor renormalization group and the concept of truncation sequence in polytope geometry is discovered. A theoretical contraction framework is therefore proposed. Furthermore, the canonical polyadic decomposition is introduced to tensor network theory. A lowest order numerical verification of this method on the 3-D Ising model is carried out.
description: 31 pages, 23 figures
Combined Effect of High Temperature Annealing and Hydrogenation of a Deposited Silicon Oxide for Silicon Surface Passivation
Creators: name: Loozen, X.
name: Jivanescu, M.
name: Stesmans, A.
name: Choulat, P.
name: John, J.
name: Conard, T.
name: Franquet, A.
name: Beaucarne, G.
name: Van Kerschaver, E.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1609-1612
description: The continuous decrease of the substrate thickness for industrial silicon solar cells results in an
increased importance of surface passivation. The most natural way to achieve surface passivation is to grow a
thermal oxide. However, the cost of ownership for thermal oxidation is much too high for the photovoltaic industry.
In the present paper, the passivating properties of a deposited oxide are studied. It is found that this oxide offers
poor passivation after deposition, but that the combination of a high temperature anneal and a forming gas anneal
results in passivation of the surface. The role of the high temperature anneal is shown to be a reduction of the
densities of the interface state, in particular of Pb centers, and of the oxide charges, while the forming gas anneal
leads to de-activation of the remaining defects.
title: Rethinking business models as sociotechnical intersections in data-economy that should be designed participatively
Creators: name: Horn, Viktoria
name: Engert, Simon
name: Draude, Claude
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: participatory design
subject: business models
subject: data economy

description: We claim that business models and IT development are reciprocally intertwined, especially in the field of data-economy. To ensure socially acceptable IT systems we frame business models as sociotechnical intersections that should be designed participatively. Contributing to the workshop ’Participatory and socially responsible technology development’ we want to discuss the application of participatory design methods and approaches on the development of data-economical business models.
New Concept for Luminescent Solar Concentrators
Creators: name: Chandra, S.
name: McCormack, S.J.
name: Doran, J.
name: Kennedy, M.
name: Chatten, A.J.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 759-762
description: We have studied the excitation rate of Lumogen Red dye molecules by enhanced local electromagnetic field
of Au nanoparticles for thin film luminescent solar concentrator (LSCs).The localized enhanced electromagnetic field of Au
nanoparticles leads to an increase the excitation rate, and consequently in emission rate of dye molecules. By varying the
distance between Au nanoparticles and dye film we showed transition form quenching to enhancement in edge emission and
resultant ISC current output of thin film LSCs. When dye molecules were placed in the range of enhanced electromagnetic
field of Au nanoparticles. Two competing factors affected the edge emission of thin film LSC; increased excitation rate (by
enhanced local electromagnetic field of Au nanoparticles) and distance between Au nanoparticles and dye molecules.
Criteria for extensional necking instability in complex fluids and soft solids. Part I: imposed Hencky strain rate protocol
Creators: name: Hoyle, David M.
name: Fielding, Suzanne M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the necking dynamics of a filament of complex fluid or soft solid in uniaxial tensile stretching at constant imposed Hencky strain rate $\dot\varepsilon$, by means of linear stability analysis and nonlinear (slender filament) simulations. We demonstrate necking to be an intrinsic flow instability that arises as an inevitable consequence of the constitutive behaviour of essentially any material (with a possible rare exception, which we outline). We derive criteria for the onset of necking that are reportable simply in terms of characteristic signatures in the shapes of the experimentally measured rheological response functions, and should therefore apply universally to all materials. As evidence of their generality, we numerically show them to hold in six popular constitutive models of polymers and soft glasses. Two distinct modes of necking instability are predicted. The first is relatively gentle, and sets in when the tensile stress signal first curves down as a function of the time $t$ (or accumulated strain $ε=\dot\varepsilon t$) since the inception of the flow. The second is more violent, and sets in when a carefully defined `elastic derivative' of the tensile force first slopes down as a function of $t$ (or $\dot\varepsilon$). In the limit of fast flow $\dot\varepsilonτ\to\infty$, where $τ$ is the material's characteristic stress relaxation time, this second mode reduces to the Considére criterion for necking in solids. However we show that the Considére criterion fails to correctly predict the onset of necking in any viscoelastic regime of finite imposed $\dot\varepsilonτ$. Finally, we elucidate the way these modes of instability manifest themselves in entangled linear polymers, wormlike micelles and branched polymers. We demonstrate four distinct regimes as a function of imposed strain rate, consistent with experimental master curves.
description: Manuscript with 30 pages and 11 figures
Polymorphous and Nanocrystalline Silicon Thin-Film Solar Cells Deposited at 150°C on Plastic Substrates
Creators: name: Alpuim, P.
name: Junior, G.M.
name: Filonovich, S.A.
name: Roca I Cabarrocas, P.
name: Bouree, J.-E.
name: Johnson, E.V.
name: Soro, Y.M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Thin Films
Amorphous and Microcrystalline Silicon

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2455-2458
description: A study of the fabrication of thin-film silicon solar cells in the p-i-n superstrate diode configuration on
plastic substrates at a temperature of 150 ºC, using different absorbing i-layers, is presented. A typical solar cell
structure in this work comprises the following successive layers: PEN/GZO/p/buffer/i/n/metal. GZO is a transparent
conductive window layer made of Zinc Oxide doped with Gallium and buffer is a high-bandgap ~10 nm-thick
amorphous silicon layer. Flexible solar cells deposited entirely by radio-frequency plasma enhanced chemical vapour
deposition on PEN had a conversion efficiency of 5.0%, JSC = 11.2 mA/cm2, and VOC = 0.830 V. Similar solar cells
on PEN but with the i-layer deposited by hot-wire chemical vapor deposition had efficiency 4.53%, JSC = 12.7
mA/cm2, and VOC = 0.699 V. Based on the spectral response of the solar cells and on their I-V characteristics under
different light levels, it is concluded that the efficiency of the devices is limited by recombination in the i-layer and
by losses in the long wavelength part of the spectrum. Devices fabricated on PEN and on Asahi-U glass have
comparable characteristics. However, the best fill factor obtained on PEN is 55.6% whereas on glass it is 60.1%.
Nanocrystalline solar cells on PEN have high JSC (17.2 mA/cm2) but very poor FF (32.7%).
AZO/ATO/TiO2 Triple-Layered Transparent Conducting Substrates for Dye-Sensitized Solar Cells
Creators: name: Montero, J.
name: Guillén, C.
name: Herrero, J.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Organic-based PV

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 791-793
description: A novel electrode based on aluminum doped zinc oxide (AZO)/ antimony doped tin oxide (ATO)/
titanium oxide (TiO2) triple layered structure has been studied for its possible applications in dye sensitized solar
cells (DSSCs). This electrode was deposited by DC magnetron sputtering technique without direct substrate
heating in three sequent steps. As the resistivity of AZO increases after high temperature processes in air, which
are usually carried during the DSSCs manufacturing, the ATO layer deposited over it is intended to stabilize the
electrode thermal behavior. Then, in order to provide good adhesion with the nanocrystalline TiO2 in which dye
molecules are impregnated in a DSSC, a thin TiO2 layer was sputtered over the resulting AZO/ATO bilayer.
These triple-layered electrodes were annealed in air at 250ºC, 350ºC, and 450ºC in order to evaluate their thermal
stability in terms of their electrical and optical properties. According to this study, AZO/ATO/TiO2 samples
present better characteristics than AZO/TiO2 and ATO/TiO2 bilayers. On the other hand, X-Ray diffraction
patterns show how a previously deposited ATO thin film enhances the crystallinity of the TiO2 film deposited on
it.
title: 9.Workshop Mensch-Maschine-Interaktion in sicherheitskritischen Systemen
Creators: name: Mentler, Tilo
name: Reuter, Christian
name: Nestler, Simon
name: Kaufhold, Marc-André
name: Pottebaum, Jens
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Usable Safety
subject: Usable Security
subject: Safety-Critical Systems

description: Im Zentrum dieses Workshops steht die Interaktion von Mensch und Technik in sicherheitskritischen Kontexten. Hierzu zählen Bereiche, die bereits seit Jahrzehnten Gegenstand der Forschung sind (z.B. Prozessführung in Leitwarten), aber auch aktuelle Herausforderungen (z.B. Social Media im Katastrophenschutz). In diesen und vielen weiteren Bereichen gilt, dass sichere Systemzustände nur durch die ganzheitliche Betrachtung von Mensch, Technik und Organisation gewährleistet bzw. schnellstmöglich wieder erreicht werden können. In diesem Zusammenhang ist der Workshop auch der Nutzbarkeit und Akzeptanz von Sicherheitskonzepten sowie einer bewussteren Auseinandersetzung der Nutzenden mit diesem Thema gewidmet.
Plasma Diagnostics and CFD Modeling of Microcrystalline Silicon Deposition Process in a Hollow-Cathode Discharge Reactor
Creators: name: Tung, F.C.
name: Chen, K.-C.
name: Chen, C.-M.
name: Wei, T.-C.
name: Chau, S.-W.
name: Lin, C.H.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Thin Films
Amorphous and Microcrystalline Silicon

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2459-2462
description: Plasma enhanced chemical vapor deposition (PECVD) of microcrystalline silicon grown at low
temperature attracts great attention especially for the manufacture of thin film solar cells. In this paper, plasma
diagnostics and numerical simulation on hollow-cathode plasma reactor for microcrystalline silicon deposition are
reported. The effects of operating parameters on electron temperature, electron density and species concentration
were investigated by plasma diagnostics. It was found that plasma uniformity can be optimized by the input power
and chamber pressure. Further, the substrate heating behavior and the flow field dynamics in in-line deposition
process were studied by numerical simulation. The effect of operating parameters on substrate temperature
distribution and velocity vector profile are realized.
Interlacements and the Wired Uniform Spanning Forest
Creators: name: Hutchcroft, Tom
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We extend the Aldous-Broder algorithm to generate the wired uniform spanning forests (WUSFs) of infinite, transient graphs. We do this by replacing the simple random walk in the classical algorithm with Sznitman's random interlacement process. We then apply this algorithm to study the WUSF, showing that every component of the WUSF is one-ended almost surely in any graph satisfying a certain weak anchored isoperimetric condition, that the number of `excessive ends' in the WUSF is non-random in any graph, and also that every component of the WUSF is one-ended almost surely in any transient unimodular random rooted graph. The first two of these results answer positively two questions of Lyons, Morris and Schramm, while the third extends a recent result of the author. Finally, we construct a counterexample showing that almost sure one-endedness of WUSF components is not preserved by rough isometries of the underlying graph, answering negatively a further question of Lyons, Morris and Schramm.
description: 25 pages, 2 figures. Update: Major revisions: several minor corrections; section 7 expanded; two new figures; several additional open problems
Development of a-Si Thin Film Solar Lamination Process Using 30 Gauge PVB as Interlayer
Creators: name: Mei, F.
name: Wohlert, M.
name: Jia, R.
name: Lu, W.
name: Prabhu, G.
name: Tanner, D.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Thin Films
Amorphous and Microcrystalline Silicon

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2463-2466
description: The solar industry is driven by reduction in the cost per watt of PV electricity. For Applied Materials SunFabTM lines, the cost reduction roadmap includes a reduction in the cost of direct materials. 45 gauge PVB is currently qualified for SunFabTM lamination process. PVB is priced almost proportionally to its thickness. By going from 45 gauge to 30 gauge, a 1/3 cost reduction can be achieved. Thinner PVB has also some other benefits over thicker PVB, such as lower leakage and less moisture penetration. However thinner PVB is harder to laminate and has narrower process window. This work focuses on process development of 30 gauge PVB lamination and its impact on final module quality.
title: Towards Inclusive Conversations in Virtual Reality for People with Visual Impairments
Creators: name: Wieland, Markus
name: Machulla, Tonja
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: visual impairments
subject: non-verbal communication
subject: virtual reality

description: Current mainstream social Virtual Reality (VR) spaces pose barriers to the equal participation of people with visual impairments (PVI) in social interactions. At present, VR is first and primarily a visual medium with a strong emphasis on the visual design of the VR scene and the available avatars. If social communication cues, such as non-verbal communication, are available at all, they are often not provided in a form accessible to PVI. Such cues are essential in social interactions to successfully participate in social interactions and experience a conversation in VR as realistic. Here, we summarize previous research regarding specific requirements for social VR spaces to be accessible to PVIs. We describe how people with disabilities recognize and identify potential conversational partners and how non-verbal communication works between PVI and sighted people. Our goal was to provide an overview of valuable features that can be implemented for inclusive conversations in a social VR space.
Frequency and time domain inspiral templates for comparable mass compact binaries in eccentric orbits
Creators: name: Tanay, Sashwat
name: Haney, Maria
name: Gopakumar, Achamveedu
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Inspiraling compact binaries with non-negligible orbital eccentricities are plausible gravitational wave (GW) sources for the upcoming network of GW observatories. In this paper, we present two prescriptions to compute post-Newtonian (PN) accurate inspiral templates for such binaries. First, we adapt and extend the post-circular scheme of Yunes {\it et al.} [Phys. Rev. D 80, 084001 (2009)] to obtain a Fourier-domain inspiral approximant that incorporates the effects of PN-accurate orbital eccentricity evolution. This results in a fully analytic frequency-domain inspiral waveform with Newtonian amplitude and 2PN order Fourier phase while incorporating eccentricity effects up to sixth order at each PN order. The importance of incorporating eccentricity evolution contributions to the Fourier phase in a PN consistent manner is also demonstrated. Second, we present an accurate and efficient prescription to incorporate orbital eccentricity into the quasi-circular time-domain {\texttt{TaylorT4}} approximant at 2PN order. New features include the use of rational functions in orbital eccentricity to implement the 1.5PN order tail contributions to the far-zone fluxes. This leads to closed form PN-accurate differential equations for evolving eccentric orbits and the resulting time-domain approximant is accurate and efficient to handle initial orbital eccentricities $\leq 0.9$. Preliminary GW data analysis implications are probed using match estimates.
description: 30 pages, 5 figures
Electroless Deposition of Ag Nanoparticles on SiNx:H and SiOx Solar Cell Coatings
Creators: name: Nychyporuk, T.
name: Zhan, Z.
name: Fave, A.
name: Lemiti, M.
name: Bastide, S.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
New Materials, Cells and Modules

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 740-742
description: We report about a new low cost, fast and large area electroless technique for the formation of Ag
nanoparticles with controlled size and density on the surface of SiNx:H and SiOx layers at room temperature and on
the time scale of several minutes. The influence of the SiNx:H and SiOx layer stoechiometries on the size and density
on Ag nanoparticles are discussed in details.
title: Smart City for women’s safety: exploration of the problems and solutions through Co-Design
Creators: name: Osipova, Margarita
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: HCI
subject: Smart City
subject: Women’s safety
subject: Co-Design
subject: Feminist HCI

description: Smart City technology is a rapidly developing field that aims to solve city-problems through technological modernization of the environment and society, including safety and security of citizens. The level of safety of the urban space influences inhabitants’ mobility levels, meaning that unsafe places restrict citizens from traveling there in general, by themselves, or at specific time of the day. These usually affect female citizens more, as they are likelier to be exposed to unsolicited dangerous attention –including sexual context–, while being less bodily able to protect themselves. This study investigates the requirements of women for future urban technological solutions through a Co-Design approach. Covering topics from the fears that women experience to the solution ideation, this work contributes to a better understanding of women's perspectives on the use of Smart City technology for safety and highlights the benefits of using Co-Design method in the research of topics alike.
Measuring the Impact of Explanation Bias: A Study of Natural Language Justifications for Recommender Systems
Creators: name: Balog, Krisztian
name: Radlinski, Filip
name: Petrov, Andrey
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Despite the potential impact of explanations on decision making, there is a lack of research on quantifying their effect on users' choices. This paper presents an experimental protocol for measuring the degree to which positively or negatively biased explanations can lead to users choosing suboptimal recommendations. Key elements of this protocol include a preference elicitation stage to allow for personalizing recommendations, manual identification and extraction of item aspects from reviews, and a controlled method for introducing bias through the combination of both positive and negative aspects. We study explanations in two different textual formats: as a list of item aspects and as fluent natural language text. Through a user study with 129 participants, we demonstrate that explanations can significantly affect users' selections and that these findings generalize across explanation formats.
description: Extended Abstracts of the 2023 CHI Conference on Human Factors in Computing Systems (CHI EA '23), 2023
On the principal eigenvectors of uniform hypergraphs
Creators: name: Liu, Lele
name: Kang, Liying
name: Yuan, Xiying
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 15A42, 05C50

description: Let $\mathcal{A}(H)$ be the adjacency tensor of $r$-uniform hypergraph $H$. If $H$ is connected, the unique positive eigenvector $x=(x_1,x_2,\ldots,x_n)^{\mathrm{T}}$ with $||x||_r=1$ corresponding to spectral radius $ρ(H)$ is called the principal eigenvector of $H$. The maximum and minimum entries of $x$ are denoted by $x_{\max}$ and $x_{\min}$, respectively. In this paper, we investigate the bounds of $x_{\max}$ and $x_{\min}$ in the principal eigenvector of $H$. Meanwhile, we also obtain some bounds of the ratio $x_i/x_j$ for $i$, $j\in [n]$ as well as the principal ratio $γ(H)=x_{\max}/x_{\min}$ of $H$. As an application of these results we finally give an estimate of the gap of spectral radii between $H$ and its proper sub-hypergraph $H'$.
description: In this version, we corrected a reference for the fact Page 6 Line 1, which shoud be [15], not [5] as before
Systematic Analysis of Meteorological Irradiation Effects
Creators: name: Zehner, M.
name: Hartmann, M.
name: Weizenbeck, J.
name: Gratzl, T.
name: Weigl, T.
name: Mayer, B.
name: Wirth, G.
name: Krawczynski, M.
name: Betts, T.
name: Gottschalg, R.
name: Hammer, A.
name: Giesler, B.
name: Becker, G.
name: Mayer, O.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV System Engineering and Standards, Socio-economic Aspects, and Sustainability

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4545-4548
description: Since installation in 1997, the weather profiles as well as the performance of a 1 MW PV system in
Munich have been recorded in second intervals and have shown effects of unexpectedly high irradiances. This study
investigates this phenomenon, which is the effect of cloud enhancement. Cloud enhancement refers to increased solar
irradiation values due to cloud reflection. The sharply defined edges of cumulus clouds lead to reflections and thus to
cloud enhancement effects. Monitored irradiance and temperature profiles clearly demonstrate this effect and its
correlations. The systematic analysis of these profiles in high resolution meteorological data records indicate on the
basis of time period, frequency and energy yield the importance of the review of these weather characteristics.
Spectral distribution recordings of the entire courses of cloud enhancement incidents display the influence on the
wave lengths. Up to now cloud enhancements effects in PV are largely underestimated and should be incorporated in
system sizing and design to ensure optimal performance.
title: Leveraging AI for Effective To-Do List Gamification
Creators: name: Consul, Saksham
name: Stojcheski, Jugoslav
name: Lieder, Falk
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: gamification
subject: productivity tools
subject: prioritization
subject: AI
subject: procrastination

description: Many people procrastinate and struggle to prioritize their most important work. To help their users overcome such problems, gamified productivity tools like Habitica use heuristic point systems that can be counterproductive. We recently proposed a more principled way to compute point values that avoids such problems. Although it was promising in theory, it required large amounts of computation even for very short to-do lists. Here, we present a scalable approximate method that makes our principled approach to to-do list gamification useable in the real world. Our method leverages artificial intelligence to generate a gamified to-do lists, where each task is incentivized by a number of points that communicates how valuable it is in the long-run. What makes our new method more scalable is that it decomposes the problem of computing long-term plans for how the user can best achieve their goals into a hierarchy of smaller planning problems. We assessed the scalability of our method by applying it to to-do lists with increasingly larger numbers of goals, sub-goals, and tasks, and we also increased the number of nested levels of the goal hierarchy. We found that the method can enable web and mobile applications to compute excellent point systems for fairly large to-do lists, with up to 576 tasks spread out over up to 9 different top-level goals. Our method freely available through an API1. This makes it easy to use our method in gamified web applications and mobile apps.
title: Interactive Notation for LMS: Progress Report and Pilot Study
Creators: name: Nowakowski, Matthias
name: Schilke, Elena
name: Hadjakos, Aristotelis
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: music education
subject: music notation
subject: LMS
subject: learner experience design

description: Music notation is a central part of higher music education. However, today there is very limited support for interactive music notation in Learning Management Systems (LMS), which hinders LMS adoption. Therefore the advantages of LMS are not widely used in musical subjects and the advancement of new forms of teaching is hindered. We are developing an interactive web based music notation editor, which we use in highly interactive, H5P-compliant task types to ensure interoperability with a variety of different LMS. This will result in a feature-complete LMS with interactive music notation that covers content creation, communication, assessment and administration. In this paper we will concentrate on the overall architecture of the project and present some insights from a pilot usability study we performed in earlier stages.
title: Two methods for Experience Design based on the Needs Empathy Map: Persona with Needs and Needs Persona
Creators: name: Krueger, Anne Elisabeth
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Psychological Needs
subject: User Experience Design
subject: Persona
subject: Empathy Map
subject: Needs Persona
subject: Persona with Needs

description: Designing for psychological needs is an essential approach to designing for a positive experience in the context of interactive products and services. However, psychological needs are often perceived as rather abstract and there is a need for methods that support the design team to use them systematically in the experience-centered design process for creative ideation. In this paper, two methods are presented that support the designers in developing personas with the help of a specifically designed Needs Empathy Map, which systematically integrates the psychological needs model: The Persona with Needs and the Needs Persona methods. With the help of the Persona with Needs method, a hypothetical persona or a persona based on user research data is developed and the relevant psychological needs of the persona are derived based on this cognitive process. The Needs Persona method, on the other hand, starts from one or a set of psychological needs per se and makes it tangible and concrete with the help of the development of the persona on the empathy map. Both methods are suitable to sensitize for and for finding a common point of view in the design team on the perspective of potential users and psychological needs. At the same time, both methods can be used as a starting point for creative brainstorming in the context of experience-oriented design - either together or independently of each other.
title: Exploration of a Mobile Design for a Privacy Assistant to Help Users in Sharing Content in Online Social Networks
Creators: name: Kqiku, Lindrit
name: Dieterle, Jakob
name: Reinhardt, Delphine
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Social networks
subject: privacy
subject: user interface
subject: mobile design

description: Currently available Online Social Network (OSN) solutions with which users can select the audience with whom they want to share online content have been shown to be inefficient in protecting their privacy. As a result, users may either censure themselves or post information about themselves that they may later regret. To address the shortcomings of existing solutions, we propose to rely on a privacy assistant that will help the users in their audience selection. Among the necessary steps for its design, we focus in this paper on the visible tip of the iceberg, i.e., the interface that will present the suggestion to the users. Our interface addresses our defined criteria and is dedicated to mobile devices. In this first design phase, we have implemented and evaluated our proposed solution with ten participants using System Usability Scale (SUS). We have reached a SUS score of 70.75 and found out that our proposed interface is usable and easy to understand.We finally discuss possible improvements and challenges for designing and evaluating such interfaces.
Axial vector transition form factors of $N \rightarrow Δ$ in QCD
Creators: name: Kucukarslan, A.
name: Ozdem, U.
name: Ozpineci, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The isovector axial vector form factors of $N \rightarrow Δ$ transition are calculated by employing Light-cone QCD sum rules. The analytical results are analysed by both the conventional method, and also by a Monte Carlo based approach which allows one to scan all of the parameter space. The predictions are also compared with the results in the literature, where available. Although the Monte Carlo analysis predicts large uncertainties in the predicted results, the predictions obtained by the conventional analysis are in good agreement with other results in the literature.
description: 12 pages, 4 figures, 2 tables, improved analysis, conclusions unmodified
Solid phase synthesis of thiazole orange labeled peptide nucleic acids for homogeneous detection of single base mutation in DNA
Creators: name: Jarikote, Dilip Venkatrao
Publisher: name: Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I
Year: 2007
Subjects: subject: PNA
subject: DNA
subject: Cyanin
subject: Fluoreszenze
subject: Cyanine
subject: Fluorescence
subject: 540 Chemie
subject: 30 Chemie

description: Interkalatorfarbstoffe wie Thiazolorange (TO) wurden an Stelle einer internen Nucleobase in PNA eingebaut. Solche Konjugate werden als FIT-Sonden (Forced Intercalation of Thiazole Orange) bezeichnet. Bei Hybridisierung interkaliert Thiazolorange in unmittelbarer Nachbarschaft zu einem mismatch Basenpaar in einen PNA·DNA-Duplex . Diese Arbeit befasste sich zunächst mit der Entwicklung einer linearen Strategie für die Festphasensynthese von PNA. Um den Einfluss der stacking- und pairing-Partner von Thiazolorange auf Stabilität und optische Eigenschaften der entsprechenden PNA•DNA-Duplexe zu untersuchen, wurden sowohl N-terminal (x) als auch C-terminal (y) benachbarte. Basen von TO in Aeg-TO- und D-Orn-TO-Oligomeren variiert. Die durchgeführten Studien belegen, dass das Thiazolorange-Basensurrogat seine Fluoreszenzintensität bei Hybridisierung am stärksten ändert, wenn es von zwei Adenin-Bausteinen flankiert wird. In Light-up-Sonden ist TO über einen flexiblen Linker mit dem N-oder C-Terminus des Oligomers verbunden, in FIT-Sonden ist eine Base durch TO ersetzt. Beide Varianten wurde in Hybridisierungsexperimenten miteinander verglichen.
description: Intercalator dyes such as thiazole orange have been linked into PNA by replacing an internal nucleobase. In these conjugates the DNA stain thiazole orange (TO) was forced to intercalate next to mismatched base pairs in a PNA•DNA duplex. These conjugates were named as FIT (Forced Intercalation of Thiazole orange) probes and are used to find single base mutation. This work was first concerned with the development of a linear strategy for the solid-phase synthesis of FIT-PNA. To explore the influence of thiazole orange stacking and pairing partners on stability and optical properties of duplexes the N’-terminal (x) and C’-terminal (y) bases of thiazole orange environment were varied for both Aeg-TO and D-Orn-TO containing oligomers. The above studies showed that the fluorescence of the thiazole orange base surrogate is most responsive to hybridisation when TO is flanked by adenine-adenine. The influence of the different attachment modes was explored by the hybridization experiments.
title: AppliHelp: Virtual assistant to overcome application hurdles
Creators: name: Wagner, Kristina
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Chatbot
subject: virtual assistant
subject: AppliHelp
subject: job application support

description: Die vorliegende Arbeit befasst sich mit der Entwicklung von AppliHelp, einem virtuellen Assistenten in Chatbotformat, welcher es Berufseinsteiger*innen ermöglichen soll, potenzielle Bewerbungshürden mithilfe von einem Zugewinn an Selbstvertrauen und weiterführenden Informationen zu überwinden. Vor der Umsetzung des Assistenten mit IBM Watson Assistant wurde auf Basis einer Literaturrecherche zu Chatbots im Rekrutierungsbereich eine Umfrage unter Studierenden zur Einstellung zu Chatbots sowie zu Potenzialen für AppliHelp durchgeführt. Außerdem trugen Expert-inneninterviews mit einer Selbstvertrauenstrainerin sowie einer Personalexpertin zur Konzeption von AppliHelp bei. Die Ausarbeitung von dementsprechend festgelegten Use Cases wird ebenso beschrieben wie die formative Nutzerevaluation während der Entwicklung.
Global and Local Horizon Quantum Mechanics
Creators: name: Casadio, R.
name: Giugno, A.
name: Giusti, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Horizons are classical causal structures that arise in systems with sharply defined energy and corresponding gravitational radius. A global gravitational radius operator can be introduced for a static and spherically symmetric quantum mechanical matter state by lifting the classical "Hamiltonian" constraint that relates the gravitational radius to the ADM mass, thus giving rise to a "horizon wave-function". This minisuperspace-like formalism is shown here to be able to consistently describe also the local gravitational radius related to the Misner-Sharp mass function of the quantum source, provided its energy spectrum is determine by spatially localised modes.
description: 13 pages, no figures. Added section about GUP and Hawking radiation. Version accepted in GERG
Distributed vs. Central Inverters - A Comparison of Monitored PV Systems
Creators: name: Kröger-Vodde, A.
name: Armbruster, A.
name: Hadek, V.
name: Heydenreich, W.
name: Kiefer, K.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Components for PV Systems
PV System Engineering and Standards, Socio-economic Aspects, and Sustainability

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 4565-4568
description: In recent years large commercial PV systems with distributed inverter have become more common.
This paper compares the performance ratio of PV plants with central and distributed inverters. It lists the main
decision criteria and arguments for each of the two options. The focus is set on a comparison of a sample of actual
PV systems, representing both inverter layout types, regarding their annual performance ratio and the operational
availability. All PV systems have been equipped with customised, high-quality monitoring systems from Fraunhofer
ISE and have a few years of operation history. The paper presents the approach taken in the investigation and
features a variety of facts based comparisons.
title: Drug target deconvolution in Leishmania donovani
titleType: Other
Creators: name: De Sousa Paradela, Luciana
Publisher: name: University of Dundee
Year: 2022

description: The lack of robustly validated drug targets in Leishmania spp. is a major impediment to the discovery of new drugs and effective treatments for leishmaniasis. Here, 6 phenotypically-active anti-leishmanial compounds were selected from GSKs Kinetobox compound collections for subsequent target deconvolution studies. The principal aim of these studies was to identify molecular targets that can be exploited by subsequent target-focused anti-leishmanial drug discovery. Using multiple orthogonal genome-wide genetic, chemical proteomic and biochemistry-based approaches, two compounds were found to target novel anti-leishmanial targets, namely oxidosqualene cyclase, a key enzyme of sterol biosynthesis, and Sec23, a component of the COPII coatomer, a vesicular coat protein involved in vesicular trafficking and secretion. Future studies to further investigate and exploit these novel targets are discussed. Remarkably, three of the four remaining compounds studied were confirmed as chelators of divalent metals. Compounds acting via this generic and potentially toxic mechanism of action are not considered progressible for drug discovery. Therefore, the significant number of chelators identified in this random selection of the Kinetobox is concerning and may be indicative of high levels of chelators more generally in screening libraries. Strategies to identify chelators at an early stage of the drug discovery process are proposed.
Conductance oscillations in quantum point contacts of InAs/GaSb heterostructures
Creators: name: Papaj, Michał
name: Cywiński, Łukasz
name: Wróbel, Jerzy
name: Dietl, Tomasz
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study quantum point contacts in two-dimensional topological insulators by means of quantum transport simulations for InAs/GaSb heterostructures and HgTe/(Hg,Cd)Te quantum wells. In InAs/GaSb, the density of edge states shows an oscillatory decay as a function of the distance to the edge. This is in contrast to the behavior of the edge states in HgTe quantum wells, which decay into the bulk in a simple exponential manner. The difference between the two materials is brought about by spatial separation of electrons and holes in InAs/GaSb, which affects the magnitudes of the parameters describing the particle-hole asymmetry and the strength of intersubband coupling within the Bernevig-Hughes-Zhang model. We show that the character of the wave function decay impacts directly the dependence of the point contact conductance on the constriction width and the Fermi energy, which can be verified experimentally and serve to determine accurately the values of relevant parameters. In the case of InAs/GaSb heterostructures the conductance magnitude oscillates as a function of the constriction width following the oscillations of the edge state penetration, whereas in HgTe/(Hg,Cd)Te quantum wells a single switching from transmitting to reflecting contact is predicted.
description: 8 pages, 6 figures, accepted version, references and additional paragraph added
title: Augmenting Elastic Displays with Active Vibrotactile Feedback
Creators: name: Müller, Mathias
name: Kammer, Dietrich
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Shape-Changing Interfaces
subject: Elastic Displays
subject: Interaction Design
subject: Interaction Metaphors
subject: Tactile Feedback

description: Within the last years, several use-cases for Elastic Displays have been explored, showing the potential for this novel technology. However, one of the shortcomings of this type of interface is that it is not possible to provide active haptic feedback to the user. This feature is limited to actuated displays, which in turn are much more complex to build, more expensive, less robust and portable. In this paper, we describe another approach to provide basic active haptic feedback for Elastic Displays by using vibration motors.We explore different options for vibrotactile feedback and describe the results of a student project in which some of the concepts were realized as part of a small game prototype.
Surface Passivation of Multi-Crystalline Silicon by Multi-Layer Deposition of Hydrogenated Amorphous Silicon
Creators: name: Mitchell, J.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Materials and Cells

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 1569-1573
description: Multi-layer plasma-enhanced chemical vapour deposition is shown to effectively passivate the surface
of both n- and p-type 1.0Ωcm mc-Si using very-thin, intrinsic a-Si:H layers. This technique compensates for the
difficulty in obtaining full coverage of the mc-Si surface across crystallographic dislocations and an abrupt interface
with no epitaxial growth of the a-Si:H is achieved. Deposition of a thin passivating a-Si:H layers permitted the
subsequent application of the a-Si:H heterostructure design to the mc-Si surface, separating the emitter from the base
wafer. Good surface passivation is achieved for both n- and p-based heterostructures on mc-Si surface when using
5nm and 10nm a-Si:H(i) inter-layers, and is further described by relatively low current density at the interface and a
correspondingly high implied open-circuit voltages in comparison to standard PECVD. These heterostructures
represent a significant advantage over other passivation methods due to the inherently low processing temperature
below 250oC and without the need for high temperature emitter diffusion. The a-Si:H heterostructure was applied to
100μm mc-Si wafers to further demonstrate the significant benefits obtained from low temperature passivation and
emitter formation using a-Si:H.
On Fairness in Petri Nets
Creators: name: Burkhard, Hans-Dieter
Publisher: name: Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II
Year: 1982
Subjects: subject: fairness
subject: Petri nets
subject: 004 Informatik

description: Introduction: Fairness is to be understood as performing actions in the order of their announcements. Related problems are studied in the Petri net model where actions correspond to the firings of transitions. An action in announced if a transition becomes firable, it is performed if this transition fires. Fairness in Petri nets means firing of transitions in the order of their anabling. Therefore, fairness is a property of firing sequences: some of them satisfy fairness conditions while others do not and have to be excluded. To ensure fairness the firings must be controlled by a queue regime giving temporary priorities to the transitions with longest waiting time. The queue policy can be performed by finite automata controlling the firings of the Petri net. While in other fairness considerations the performability of a waiting action is not influenced by other actions, the situation in Patri nets may be different: a firable transition may loose its concession by firings of other transitions, i. e. an announced action may be non-performable when it should be executed with respect to its waiting period. This leads to certain constraits for the net (to permit fair firings) or to modified fairness conditions. The problems like reachability, boundedness, liveness etc. are considered for nets firing under fairness conditions. They can be proved to be undecidable in the case of unbounded nets since we can simulate counter machines by Petri nets where the firings are constraited by fairness. Thus fairness gives the Petri nets more computational power and hence in general it is not possible to modify a Petri net in such a way that the possible firings are exactly the fair firings of the original net.