cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Empowering Citizen Science Through Digital Technologies: New Participatory Approaches to Data Collection, Sharing, and Analysis
Creators: name: Pumplun, Luisa
name: Wagner, Amina
name: Störzinger, Tobias
name: Fecho, Mariska
name: Buxmann, Peter
name: Misselhorn, Catrin
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Citizen science
subject: digital technologies
subject: data
subject: data donation

description: This workshop revolves around citizen science as an approach that allows people to collect data, share it with scientists, and actively participate in its analysis via modern digital technologies. In recent decades, Internet users have generated ever increasing amounts of personal data, e.g., through the use of mobile devices, wearables, or social networks. At the latest since the outbreak of the Covid 19 pandemic, it is clear that citizens are willing to donate this data for a good cause and in particular to promote science. Beyond donating data, citizens are increasingly involved in other phases of the research process, such as data analysis. This draws citizens and scientists closer together and blurs boundaries between the otherwise separated parties. Beyond the promise of larger data sets and more effective data analysis, however, citizen science has its downsides, especially when it comes to broad citizen participation through digital technologies. For example, key issues such as ensuring data privacy or quality are still unresolved. Therefore, the workshop will address the advantages and disadvantages of digitally enabled citizen science, the use of advanced digital technologies to engage people in research, and specifically data donation, which has been of particular interest in research and practice recently. We invite researchers to submit contributions in the area of digitally enabled citizen science to further develop this branch of research with respect to ethical, legal, and technical concerns, among others. We will also host a panel discussion with several experts from different disciplines on the special interest topic data donation to share ideas and discuss how this type of citizen science can be realized. We intend to use the results of this workshop as a starting point for further discussion, research, and steps towards participatory science.
Quantum circuits for qubit fusion
Creators: name: Moussa, Jonathan E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider four-dimensional qudits as qubit pairs and their qudit Pauli operators as qubit Clifford operators. This introduces a nesting, $C_1^2 \subset C_2^4 \subset C_3^2$, where $C_n^m$ is the $n$th level of the $m$-dimensional qudit Clifford hierarchy. If we can convert between logical qubits and qudits, then qudit Clifford operators are qubit non-Clifford operators. Conversion is achieved by qubit fusion and qudit fission using stabilizer circuits that consume a resource state. This resource is a fused qubit stabilizer state with a fault-tolerant state preparation using stabilizer circuits.
description: 6 pages, 1 figure
Materials Analysis of Laser Treated CIGS
Creators: name: Westin, P.-O.
name: Edoff, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Thin Films
CIS, CdTe and Other (II-VI) Ternary Thin Film Cells

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2558-2561
description: Laser treated CIGS can replace the direct contact between front ZnO contact and back Mo contact in
CIGS based thin film modules without performance losses. The possibility to influence the composition of the laser
treated material, particularly the Cu content, by using different scribing conditions is shown. A high Cu content is
likely to be better suited for the electrical conductivity of the resulting scribe line. Furthermore, XRD showed that the
residual material after laser scribing is for the most part still in the chalcopyrite CIGS phase. Small amounts of
additional phases were encountered, most likely metal oxides and selenides. Although a segregation of a conductive
CuySe phase was expected, no clear evidence of such a phase could be found.
title: Investigating the Challenges Facing Behavioral Biometrics in Everyday Life
Creators: name: Saad, Alia
name: Gruenefeld, Uwe
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: behavioral biometrics
subject: user identification
subject: gait
subject: inertial sensors

description: The rapid progress of ubiquitous devices’ usage is faced with equally rapid progress of user-centered attacks. Researchers considered adopting different user identification methods, with more attention towards the implicit and continuous ones, to maintain the balance between usability and privacy. In this statement, we first discuss biometric-based solutions used to assure devices’ robustness against user-centered attacks, taking the inertial sensor-based gait identification for example. We finally discuss the challenges facing these solutions when integrated with everyday interactions.
Electronic Excitation Response of DNA to High-energy Proton Radiation in Water
Creators: name: Shepard, Christopher
name: Yost, Dillon
name: Kanai, Yosuke
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The lack of molecular-level understanding for the electronic excitation response of DNA to charged particle radiation, such as high-energy protons, remains a fundamental scientific bottleneck in advancing proton and other ion beam cancer therapies. In particular, the dependence of different types of DNA damage on high-energy protons represents a significant knowledge void. Here we employ first-principles real-time time-dependent density functional theory simulation, using a massively-parallel supercomputer, to unravel the quantum-mechanical details of the energy transfer from high-energy protons to DNA in water. The calculations reveal that protons deposit significantly more energy onto the DNA sugar-phosphate side chains than onto the nucleobases, and greater energy transfer is expected onto the DNA side chains than onto water. As a result of this electronic stopping process, highly energetic holes are generated on the DNA side chains as a source of oxidative damage.
description: Main text (9 pages) with 4 figures and Supplemental Information
title: User Experience and Social Interaction with Robots
Creators: name: Häkkilä, Jonna
name: Väänänen, Kaisa
name: Löchtefeld, Markus
name: Ahtinen, Aino
name: Kaipainen, Kirsikka
name: Rehm, Matthias
name: Paananen, Siiri
name: Hannula, Petri
name: Colley, Ashley
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: social robots
subject: human-robot interaction
subject: user experience

description: Robots are an emerging area in human-computer interaction. Although different types of robots have been around for automation and maintenance tasks, they are now emerging more and more towards use cases with social interaction, bringing new opportunities and challenges for the designers. Robots are being integrated into different work and service domains, including office work, healthcare and education. When designing interactive technologies, we need to take into account different user groups, use contexts, and even cultural sensitivities to achieve good user experiences. With robots, also tangible interaction, the form factor, and physical appearance are part of the interactive system design. This workshop addresses interaction with robots, focusing especially on the user experience and social interaction side of it. The workshop invites researchers and practitioners to present their work, or position papers, on the topic and to discuss about related case studies, applications, research methods, and experiences.
Controlling the Surface Tension of Alkaline Etching Solutions
Creators: name: Birmann, K.
name: Zimmer, M.
name: Rentsch, 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; 1744-1747
description: Alkaline anisotropic etching with potassium hydroxide (KOH) and the additive 2-propanol (IPA) is a
widely used process to texture monocrystalline silicon wafers industrially in order to reduce their reflection. Using
IPA as additive in hot KOH (aq) the alcohol evaporates easily during the texturisation and the bath composition
changes. Therefore IPA has to be redosed either during the texturisation or afterwards. The IPA concentration
strongly influences the air to liquid surface tension of the etching solution. Adding IPA to an alkaline etching
solution reduces its surface tension because IPA is surface active, resulting in a reciprocal proportionality. Online
measurement of the surface tension allows dosing IPA to the bath solution using the surface tension as a control
parameter. A proportional-integral-derivative controller can keep the surface tension and IPA concentration constant.
This means that a texturisation can be processed at well defined conditions.
title: UUX (+ X) in der Praxis: Bedürfnisse und Werte für Unternehmen nutzbar machen
Creators: name: Krüger, Anne Elisabeth
name: Brandenburg, Stefan
name: Langner, Moritz
name: Burmester, Michael
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Bedürfnisse
subject: Bedürfnisprofile
subject: User Experience Design
subject: wertebasiertes Design

description: Der interaktive Workshop UUX(+X) in der Praxis ist eine Fortsetzung der erfolgreichen Reihe UUX in der Praxis. Er hat die Sensibilisierung für die Relevanz von Bedürfnissen und Werten im Unternehmenskontext zum Ziel. In diesem Sinne soll der Blickwinkel der Usability (U) auf effektive und effiziente Nutzung und der User Experience (UX) mit dem Fokus auf die Erfüllung psychologischer Bedürfnisse der NutzerInnen um die Perspektive auf die Bedürfnisse und Werte von MitarbeiterInnen von Unternehmen (+X) erweitert werden. Neben den NutzerInnen digitaler Services und den KundInnen von Unternehmen rücken nun auch die Technologieschaffenden in den Fokus. Sie benötigen ein menschzentriertes Mindset im Unternehmen, damit sie eine positive User Experience digitaler Produkte und Services gestalten können. Damit dies in der Praxis gelingen kann, sensibilisiert derWorkshop für die Bedeutung der Bedürfnisse und Werte der MitarbeiterInnen und ihre Auswirkungen auf den Unternehmenserfolg. Impulsvorträge helfen Werte und Bedürfnisse zu definieren und deren Relevanz für Unternehmen aufzuzeigen. Anschließend erarbeiten die TeilnehmerInnen für sie wichtige Bedürfnisse und Werte. Um diese Erkenntnisse in den Kontext der Unternehmen zu überführen, arbeiten die TeilnehmerInnen interaktiv nach der Methode der Bedürfnisprofile. Zunächst werden die Bedürfnisse und Werte metaphorisch mithilfe von Lego®-Steinen gebaut, um die eher abstrakten Konzepte konkret und greifbar zu machen. Anschließend werden Bedürfnisund Wertepersonas entwickelt. Sie erlauben einen Einblick in die Motivationen von werte- und bedürfnisorientierten Arbeitsweisen. Abschließend wird gemeinsam diskutiert, welche Haltung in den Unternehmen vorhanden sein sollte, damit bedürfnis- und wertebasiertes Arbeiten möglich wird.
Source Localization on Graphs via l1 Recovery and Spectral Graph Theory
Creators: name: Pena, Rodrigo
name: Bresson, Xavier
name: Vandergheynst, Pierre
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We cast the problem of source localization on graphs as the simultaneous problem of sparse recovery and diffusion kernel learning. An l1 regularization term enforces the sparsity constraint while we recover the sources of diffusion from a single snapshot of the diffusion process. The diffusion kernel is estimated by assuming the process to be as generic as the standard heat diffusion. We show with synthetic data that we can concomitantly learn the diffusion kernel and the sources, given an estimated initialization. We validate our model with cholera mortality and atmospheric tracer diffusion data, showing also that the accuracy of the solution depends on the construction of the graph from the data points.
description: 5 pages, 5 figures, published in "Image, Video, and Multidimensional Signal Processing Workshop (IVMSP), 2016 IEEE 12th"
title: KI im Einsatz: Interdisziplinäre Herausforderungen im Projekt UAV-Rescue
Creators: name: Philippi, Martina
name: Heusinger-Heß, Victoria
name: Ari, Meral
name: Krüger, Emily
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: -

description: Im Projekt „UAV-Rescue: UAV-getragene Sensorik zur KI-basierten Unterstützung von Rettungsmissionen“ wird an einem unbemannt fliegenden System geforscht, das in schwer zugänglichen Räumen bei der Rettungspriorisierung hilft, indem es den Einsatzkräften eine Visualisierung des Raumes mit darin lokalisierten Lebenszeichen zur Verfügung stellt. Diese neue Technologie wirft verschiedene ethische Fragestellungen auf, die unter anderem die Nutzung von Künstlicher Intelligenz zur Lebenszeichendetektion und die Einbettung der neuen Technologie in die Einsatzpraxis betreffen. Die ethische Begleitforschung des Projekts adressiert diese Fragestellungen in einem interdisziplinären und iterativen Diskurs mit Technikpartnern und Endanwendern. Einige dieser Fragestellungen werden hier vor dem Hintergrund der eingesetzten KI-Methoden und der bestehenden Einsatzpraxis beim THW vorgestellt.
An Integrated Software for Monitoring and Evaluation Solar Photovoltaic Installations
Creators: name: Martínez-Marchena, I.
name: Mora-López, L.
name: Piliougine Rocha, M.
name: Sidrach-De-Cardona, M.
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; 4729-4732
description: This article describes the developed software for monitoring and evaluating photovoltaic solar energy
systems using OPC technology and some machine learning techniques. The software allows the integration of expert
knowledge in the definition of the measurement channels. The result of evaluating the performance of a photovoltaic
plant obtained from a machine learning model is also obtained with the software. The recorded information is not
only the standard information, such as irradiation, production, temperature and so on, but also calculated channels
that link these basic channels from previous definition. As a result of this monitoring and evaluating system, daily
reports of the operation of the plant that include not only the standard calculations of energy production and
performance, but additional information on possible problems in the operation according to the optimal operation of
the plant are generated. These reports can be obtained at different time intervals. OPC technology (OLE for Process
Control) has been used for developing the software.
title: Detecting a Crisis: Comparison of Self-Reported vs. Automated Internet Outage Measuring Methods
Creators: name: Orlov, Denis
name: Möller, Simon
name: Düfer, Sven
name: Haesler, Steffen
name: Reuter, Christian
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Internet Outages
subject: Germany
subject: Self-Organization
subject: Crowdsourcing
subject: Crisis Informatics

description: Every day, there are internet disruptions or outages around the world that affect our daily lives. In this paper, we analyzed these events in Germany in recent years and found out how they can be detected, and what impact they have on citizens, especially in crisis situations. For this purpose, we take a look at two different approaches to recording internet outages, namely the self-reporting of citizens and automatic reporting by algorithmic examination of the availability of IP networks. We evaluate the data of six major events with regard to their meaningfulness in quality and quantity. We found that due to the amount of data and the inherent imprecision of the methods used, it is difficult to detect outages through algorithmic examination. But once an event is publicly known by self-reporting, they have advantages to capture the temporal and spatial dimensions of the outage due to its nature of objective measurements. As a result, we propose that users’ crowdsourcing can enhance the detection of outages and should be seen as an important starting point to even begin an analysis with algorithm-based techniques, but it is to ISPs and regulatory authorities to support that.
Thermal Analysis of Concentrated Photovoltaic Module
Creators: name: Tseng, C.-J.
name: Chen, C.-F.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Advanced Photovoltaics: New Concepts and Ultra-high Efficiency
Terrestrial Concentrator Systems

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 896-901
description: In this work, temperature distribution is analyzed for different solar concentration ratio, wall
emissivity, and the type of additional fins. Also, we discuss two types of photovoltaic array in extreme conditions;
one is single cell module and the other is periodic cell module in a solar cell system. So the temperature of any array
type will fall between these two bounds. The temperature of a single module solar system is found to be 344 K for a
concentration of 476 suns, ceramic PCB, and shell emissivity of 0.1. The temperature is 397 K for a periodic module
array under the same conditions. The difference in temperature between the two array types is caused by the
boundary condition. In the single module, heat can be transferred through the module shell, while the periodic array
lacks this mechanism.
Periodicity of the Cayley-Dickson twists
Creators: name: Bales, John W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16S99, 16W99

description: Regarding the Cayley-Dickson algebras as twisted group algebras, this paper reveals some basic periodic properties of these twists.
description: 8 pages
Minimal hypersurfaces with small first eigenvalue in manifolds of positive Ricci curvature
Creators: name: Zhu, Jonathan J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C42, 58J50

description: In this paper we exhibit deformations of the hemisphere $S^{n+1}_+$, $n\geq 2$, for which the ambient Ricci curvature lower bound $\text{Ric}\geq n $ and the minimality of the boundary are preserved, but the first Laplace eigenvalue of the boundary decreases. The existence of these metrics suggests that any resolution of Yau's conjecture on the first eigenvalue of minimal hypersurfaces in spheres would likely need to consider more geometric data than a Ricci curvature lower bound.
description: 30 pages; changes to sections 3.2, 3.3, typos fixed; to appear in J. Topol. Anal
Modifications to Cosmological Power Spectra from Scalar-Tensor Entanglement and their Observational Consequences
Creators: name: Bolis, Nadia
name: Albrecht, Andreas
name: Holman, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the effects of entanglement in the initial quantum state of scalar and tensor fluctuations during inflation. We allow the gauge-invariant scalar and tensor fluctuations to be entangled in the initial state and compute modifications to the various cosmological power spectra. We compute the angular power spectra ($C_l$'s) for some specific cases of our entangled state and discuss what signals one might expect to find in CMB data. This entanglement also can break rotational invariance, allowing for the possibility that some of the large scale anomalies in the CMB power spectrum might be explained by this mechanism.
description: 29 pages, 15 figures Third version: Published in JCAP. Includes improvements to toy model in Section 5 to better explain origin of oscillations and changes to Appendix C to complement this discussion. The discussion in the final Appendix has also been slightly modified for clarity
title: Eine Klassifikation sicherheitskritischer UX-Design-Patterns
Creators: name: Buhleier, Laura
name: Linsner, Sebastian
name: Steinbrink, Enno
name: Reuter, Christian
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Dark Patterns
subject: Anti Patterns
subject: Grey Patterns
subject: UX Design

description: User Experience ist von zunehmender Relevanz für die Entwicklung digitaler Designentscheidungen und hat somit weitgehende Auswirkungen auf das Nutzerverhalten. Dass dies besonders für die Sicherheit und Vertraulichkeit nicht nur von Vorteil sein kann, sondern Nutzer*innen negativ beeinflussen kann, wird in dieser Arbeit ersichtlich. Betrachtetwerden dafür die Themengebiete Anti-Patterns, Grey Patterns und Dark-Patterns. Anti-Patterns bezeichnen wiederkehrende Lösungen für ein Konzept eines User Interfaces, die trotz guter Intention ungewünschte Nebeneffekte oder Konsequenzen haben. Dark-Patterns dagegen stellen Designentscheidungen dar, die durch Täuschung oder Ausnutzung psychischen Drucks versuchen Nutzer*innen zu Handlungen zu verleiten, von denen die Ersteller*innen des Dark-Patterns mehr profitieren als die Anwender* innen. Der Begriff Grey Patterns wird in dieser Arbeit für alle Design Patterns genutzt, die sich nicht direkt zuordnen lassen. Da es bisher kaum vergleichendeWerke und keinen Konsens zu diesen Themengebieten gibt, ist das Ziel dieser Arbeit ein grundlegendes Modell aufzustellen. Dabei wird durch die Untersuchung bestehender Literatur eine zusammenfassende Taxonomie und ein Vorgehen zur Unterscheidung von Anti-Patterns und Dark-Patterns erarbeitet, die als Grundlage für weitere Arbeiten und zur Entwicklung von Gegenmaßnahmen genutzt werden können.
Preparation Conditions for Microcrystalline Silicon Growth Using He Dilution
Creators: name: Torres, I.
name: Gandía, J.J.
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; 2371-2373
description: In this work, undoped microcrystalline silicon is deposited by PECVD from He dilution instead of the
commonly used H2 dilution. The effect of input silane content, total flux and effective power have been investigated.
Similar to what occurs when H2 is used, the effect of these deposition parameters on microcrystalline silicon growth
comes directly related to its effect in silane depletion in the plasma. If silane content is increased, by adjusting the
total flux and effective power so that silane depletion also increases, films having similar characteristics can be
deposited. Therefore, despite the differences in He or H2 dilution, microcrystalline growth is, in both cases,
controlled by the silane content in the plasma, and the influence of input parameters is similar regardless of the gas
used.
Universal Signatures of Quantum Critical Points from Finite-Size Torus Spectra: A Window into the Operator Content of Higher-Dimensional Conformal Field Theories
Creators: name: Schuler, Michael
name: Whitsitt, Seth
name: Henry, Louis-Paul
name: Sachdev, Subir
name: Läuchli, Andreas M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The low-energy spectra of many body systems on a torus, of finite size $L$, are well understood in magnetically ordered and gapped topological phases. However, the spectra at quantum critical points separating such phases are largely unexplored for 2+1D systems. Using a combination of analytical and numerical techniques, we show that the low-energy torus spectrum at criticality provides a universal fingerprint of the underlying quantum field theory, with the energy levels given by universal numbers times $1/L$. We highlight the implications of a neighboring topological phase on the spectrum by studying the Ising* transition (i.e. the transition between a $Z_2$ topological phase and a trivial paramagnet), in the example of the toric code in a longitudinal field, and advocate a phenomenological picture that provides insight into the operator content of the critical field theory.
description: 6 pages, 4 figures (+Supplemental Material)
$\mathcal{D}$-solutions to the system of vectorial Calculus of Variations in $L^\infty$ via the singular value problem
Creators: name: Croce, Gisella
name: Katzourakis, Nikos
name: Pisante, Giovanni
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: For $\mathrm{H} \in C^2(\mathbb{R}^{N \times n})$ and $u : Ω\subseteq \mathbb{R}^n \to \mathbb{R}^N$, consider the system \[ \label{1}\mathrm{A}\_\infty u\, :=\,\Big(\mathrm{H}\_P \otimes \mathrm{H}\_P + \mathrm{H}[\mathrm{H}\_P]^\bot \mathrm{H}\_{PP}\Big)(\mathrm{D} u): \mathrm{D}^2 u\, =\,0. \tag{1}\]We construct $\mathcal{D}$-solutions to the Dirichlet problem for (1), an apt notion of generalised solutions recently proposed for fully nonlinear systems. Our $\mathcal{D}$-solutions are $W^{1,\infty}$-submersions and are obtained without any convexity hypotheses for $\mathrm{H}$, through a result of independent interest involving existence of strong solutions to the singular value problem for general dimensions $n\neq N$.
LHC 750 GeV Diphoton excess in a radiative seesaw model
Creators: name: Kanemura, Shinya
name: Nishiwaki, Kenji
name: Okada, Hiroshi
name: Orikasa, Yuta
name: Park, Seong Chan
name: Watanabe, Ryoutaro
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate a possibility for explaining the recently announced 750\,GeV diphoton excess by the ATLAS and the CMS experiments at the CERN LHC in a model with multiple doubly charged particles, which was originally suggested for explaining tiny neutrino masses through a three-loop effect in a natural way. The enhanced radiatively generated effective coupling of a new singlet scalar $S$ with diphoton with multiple charged particles in the loop enlarges the production rate of $S$ in $pp\to S+X$ via photon fusion process and also the decay width $Γ(S\to γγ)$ even without assuming a tree level production mechanism. We provide detailed analysis on the cases with or without allowing the mixing between $S$ and the standard model Higgs doublet.
description: 24 pages, 3 figures, 1 table (v1); 33 pages, 8 figures, 2 tables (v2, accepted version to PTEP)
title: SMT Solvers – A PromisingWay for Verifying User Interfaces?
Creators: name: Bruchertseifer, Jens
name: Weyers, Benjamin
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: formal methods in HCI
subject: SMT
subject: SMT solver
subject: Z3
subject: UI model
subject: verification
subject: reference nets
subject: Renew
subject: FILL
subject: transformation
subject: automatization

description: Evaluating user interfaces of interactive applications in terms of correctness has always been a lengthy and error-prone task, as it would be executed by humans. This has led to this aspect of development being severely neglected, which poses a fundamental problem in terms of usability. In this work, we present a novel approach based on the creation of a formal representation from a given user interface, which is transformed into a reference net and finally converted into an SMT formula. As SMT formulae can be evaluated easily using highly efficient SMT solvers, this approach promises good efficiency in real-world scenarios.
Second-order convergence of monotone schemes for conservation laws
Creators: name: Fjordholm, Ulrik S.
name: Solem, Susanne
Publisher: name: arXiv
Year: 2016
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M08, 65M12

description: We prove that a class of monotone, \emph{$W_1$-contractive} schemes for scalar conservation laws converge at a rate of $Δx^2$ in the Wasserstein distance ($W_1$-distance), whenever the initial data is decreasing and consists of a finite number of piecewise constants. It is shown that the Lax--Friedrichs, Enquist--Osher and Godunov schemes are $W_1$-contractive. Numerical experiments are presented to illustrate the main result. To the best of our knowledge, this is the first proof of second-order convergence of any numerical method for discontinuous solutions of nonlinear conservation laws.
Low Temperature Surface Passivation of Silicon by Using Perhydropolysilazane as a SiO2 Source Material
Creators: name: Nagaoyshi, H.
name: Ozaki, T.
name: Higano, M.
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; 1680-1682
description: Low temperature surface passivation on silicon using SiO2 prepared by Perhydropolysilazane (PHPS) as
source material has investigated. The PHPS, which is an organosilicate polymer consisting of cyclic (-SiH2-NH-)n units,
turns to SiO2 by heat treatment lower than 450°C. Hot steam annealing, O2 annealing, and hydrogen radical treatment were
examined as post annealing methods. SiO2 film preaperd by dip coating showed good passivation property after hot steam
annealing at 650°C. The results suggest that the passivation using PHPS can be a candidate of very low cost surface
passivation process.
Effect of Doping with Magnesium on Structural, Optical and Electrical Properties of Epitaxial-Grown Mg-Doped C60 Thin Films
Creators: name: Morales, C.
name: Kojima, N.
name: Natori, M.
name: Ogata, N.
name: Nishi, S.
name: Yamaguchi, M.
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; 781-783
description: Effect of doping with magnesium atoms of Mg-doped C60 films grown on mica was studied. An
improvement on the conductivity of the films was observed when the concentration of magnesium was increased.
Structural changes were observed from the diffraction patterns of x-ray at high magnesium concentration. A new
peak in the photoconductivity spectrum was observed. This new peak also was attributed to structural changes, which
would lead to some changes in the carrier transport. The pentagonal pinch Ag(2) mode of the Raman spectrum
weakened and shifted to lower wavenumbers when the magnesium concentration increased which indicates that
indeed the C60 molecule cage is changing .
title: Taking a Value Perspective on Medical Data Donation Through Participatory Workshops
Creators: name: Müller-Birn, Claudia
name: Leimstädtner, David
name: Sörries, Peter
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Value-sensitive design
subject: reflective design
subject: participatory design
subject: values
subject: data donation
subject: medical domain

description: Clinical patient data is a valuable resource for data-driven medical research. However, discussions around personal data privacy highlight the urgency of designing user interfaces that communicate the possibilities and limitations of the data security used when sharing personal health data. To better understand patients’ values regarding medical data sharing, we developed a methodical approach for value-centered participatory workshops. This approach is inspired by two strains, value-sensitive design and reflective design, to reveal values related to a data donation process in the medical field. The data collected in the workshop (the first of three) will be used to derive design recommendations to improve data donation processes.
Is the magnetic field making the inner crust of neutron stars more heterogeneous?
Creators: name: Fang, Jianjun
name: Avancini, Sidney
name: Pais, Helena
name: Providência, Constança
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the effect of strong magnetic fields, of the order of $10^{15}-10^{17}$ G, on the extension of the crust of magnetized neutron stars. The dynamical instability region of neutron-proton-electron ($npe$) matter at subsaturation densities and the mode with the largest growth rate are determined within a relativistic mean field model. It is shown that a strong magnetic field has a large effect on the instability region, defining the crust-core transition as a wide density range.
description: 5 pages, 2 figures. Figures 2 have been changed and the corresponding discussion completed. Accepted for publication in Phys. Rev. C as Rapid Communication
Addition of Na2Se and Na to Bridgman-grown CuInSe2+x
Creators: name: Champness, C.H.
name: Myers, H.F.
name: Shih, J.-L.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Thin Films
CIS, CdTe and Other (II-VI) Ternary Thin Film Cells

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 2531-2534
description: Ingots of CuInSe2+x were grown by a vertical Bridgman method from melts containing added quantities of either elemental sodium (Na0) or Na2Se, where x was 0, 0.2 or 0.4. Thermoelectric power () measurements on samples cut from the ingots showed a conductivity type reversal from p- to n-type for additions above 0.1 at % Na0 in stoichiometric CuInSe2 but no change in p-type behaviour from 0 to 10 at % Na0 was observed in CuInSe2.2 or CuInSe2.4, with excess Se. In either CuInSe2 or CuInSe2.2,  decreased to about a third of its initial value as Na2Se was added from 0 to 5 at %. Four different surface deposits were observed within the ampoule containing the ingot. These were shown to include sodium, selenium and copper products. While the brittleness of the ingot increased with sodium addition, the crystal structure remained essentially chalcopyrite.
Keywords: CIS, Sodium, Monocrystalline.
title: 5th International Workshop "Gam-R – Gamification Reloaded"
Creators: name: Mazarakis, Athanasios
name: Voit, Thomas
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Gamification
subject: Game-based Learning
subject: Game-Based Learning
subject: Serious Games
subject: Pervasive Games

description: The “Gam-R – Gamification Reloaded” series hosts a regular international workshop on gamification and related topics. Gamification as a scientific concept for using game-like elements in a non-game context [3] is here to stay [7–10]. The results of the past four workshops were summarized to identify current and future gamification trends and form the basis for the new focus of the workshop. Among other areas, gamification can, from a scientific perspective, help to improve the motivation for education, engage with healthrelated aspects, support sustainable consumption, and improve customer loyalty.
A partial differential equation for the rank one convex envelope
Creators: name: Oberman, Adam M.
name: Ruan, Yuanlong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: In this article we introduce a Partial Differential Equation (PDE) for the rank one convex envelope. Rank one convex envelopes arise in non-convex vector valued variational problems \cite{BallElasticity, kohn1986optimal1, BallJames87, chipot1988equilibrium}. More generally, we study a PDE for directional convex envelopes, which includes the usual convex envelope \cite{ObermanConvexEnvelope} and the rank one convex envelope as special cases. Existence and uniqueness of viscosity solutions to the PDE is established. Wide stencil elliptic finite difference schemes are built. Convergence of finite difference solutions to the viscosity solution of the PDE is proven. Numerical examples of rank one and other directional convex envelopes are presented. Additionally, laminates are computed from the rank one convex envelope.
description: 26 pages, 5 figures, 4 tables
Simultaneous Determination of Electron Density-Of-States and Carrier Lifetime in Organic Bulk-Heterojunction Solar Cells Under Illumination by Impedance Spectroscopy
Creators: name: Boix, P.P.
name: Garcia-Belmonte, G.
name: Bisquert, 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; 810-812
description: We report new insights into recombination kinetics in poly(3-hexylthiophene):methanofullerene
(P3HT:PCBM) solar cells using a small-amplitude technique (impedance spectroscopy) that allows to determine both
the density of states (DOS), internal recombination resistance, and carrier lifetime, at different steady states. We
performed a set of measurements at open-circuit aiming to better understand the limitations to the photovoltage,
which in this class of solar cells remains far below the theoretical limit which is the difference between the LUMO
level of PCBM and the HOMO of P3HT (~1.1 eV). Recombination kinetics follows a bimolecular law, being the
recombination time (lifetime) inversely proportional to the density of photogenerated charges and the recombination
coefficient  = 6×10-13 cm-3 s. We find that the open-circuit photovoltage is governed by the carrier ability of
occupying the DOS, which results of Gaussian shape and spreads in energy  ≈ 125–140 meV. The energy position
of the Gaussian DOS center (EL=0.75–0.80 eV), which corresponds to half occupation of the electron DOS,
approximates LUMO(PCBM)-HOMO(P3HT) difference. But the recombination rate is strongly enhanced at high
illumination levels, what produces the photogenerated charge to remain in the tail of the DOS. Consequently the
electron and hole Fermi levels are unable to reach the center of the DOS, then substantially limiting the photovoltage
title: Virtuelle und Augmentierte Realität für Partizipation und Teilhabe
Creators: name: Draxler, Fiona
name: Feitsch, Jochen
name: Neuhaus, Robin
name: Ringfort-Felner, Ronda
name: Wieland, Markus
name: Hassenzahl, Marc
name: Geiger, Chris
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Virtual Reality
subject: Augmented Reality
subject: Mixed Reality
subject: Partizipation
subject: Teilhabe
subject: Digitale Gesellschaft

description: Virtuelle und augmentierte Realität (VR/AR) sind mittlerweile wesentliche Technologien in vielen gesellschaftlichen Bereichen. So ermöglichen VR und AR digitale Partizipation und Teilhabe etwa im Kontext sozialer, kultureller und wirtschaftlicher Projekte. Insbesondere können vielfältige zukünftige, vergangene oder simulierte Szenarien interaktiv gestaltet und immersiv visualisiert werden, zum Beispiel um Bürgerbeteiligung zu fördern oder kulturelles und historisches Erbe erlebbar zu machen. Herausforderungen, auf die dabei besonderes Augenmerk gelegt werden sollte, sind die Interaktion in Multi-User-Szenarien sowie die inklusive Gestaltung. Der Workshop bietet ein Forum zum Austausch zum Einsatz von VR/ARbasierten Technologien im Bereich der digitalen Gesellschaft aus Forschungs-, Entwicklungs- und Anwendungsperspektive. Er wird als klassischer wissenschaftlicher Workshop mit Kurzbeiträgen, Diskussionen und Prototypendemonstrationen gestaltet.
Singular $F(R)$ Cosmology Unifying Early and Late-time Acceleration with Matter and Radiation Domination Era
Creators: name: Odintsov, S. D.
name: Oikonomou, V. K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present some cosmological models which unify the late and early-time acceleration eras with the radiation and the matter domination era, and we realize the cosmological models by using the theoretical framework of $F(R)$ gravity. Particularly, the first model unifies the late and early-time acceleration with the matter domination era, and the second model unifies all the evolution eras of our Universe. The two models are described in the same way at early and late times, and only the intermediate stages of the evolution have some differences. Each cosmological model contains two Type IV singularities which are chosen to occur one at the end of the inflationary era and one at the end of the matter domination era. The cosmological models at early times are approximately identical to the $R^2$ inflation model, so these describe a slow-roll inflationary era which ends when the slow-roll parameters become of order one. The inflationary era is followed by the radiation era and after that the matter domination era follows, which lasts until the second Type IV singularity, and then the late-time acceleration era follows. The models produce a nearly scale invariant power spectrum of primordial curvature perturbations and a scalar-to-tensor ratio which are compatible with the most recent observational data and it seems that the deceleration acceleration transition is crucially affected by the presence of the second Type IV singularity which occurs at the end of the matter domination era. We perform an analysis of the Hubble horizon evolution, and in addition, we investigate which $F(R)$ gravity can successfully realize each of the four cosmological epochs.
description: CQG accepted
title: 8. Usable Security und PrivacyWorkshop
Creators: name: Lo Iacono, Luigi
name: Schmitt, Hartmut
name: Polst, Svenja
name: Heinemann, Andreas
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: Usable Security
subject: Usable Privacy

description: Ziel der achten Auflage des wissenschaftlichen Workshops “Usable Security and Privacy” auf der Mensch und Computer 2022 ist es, aktuelle Forschungs- und Praxisbeiträge zu präsentieren und anschließend mit den Teilnehmenden zu diskutieren. Der Workshop soll ein etabliertes Forum fortführen und weiterentwickeln, in dem sich Experten aus verschiedenen Bereichen, z. B. Usability und Security Engineering, transdisziplinär austauschen können.
Post-Crystallization Thin Film Solar Cell Stress Determination
Creators: name: Brazil, I.C.
name: Green, M.A.
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; 2486-2488
description: Strain determination is of importance in any thin film manufacturing process, with the effects of excess stress and strain reducing device performance and yield. Samples of thin film silicon on glass which was deposited using plasma enhanced chemical vapour deposition were obtained from a well known manufacturer for testing. The strain was determined by patterning of micro test structures onto the surface of the film with their subsequent release via wet and dry etching techniques. Movement of these micro structures allowed the determination of the strain via optical and electron microscopy. Samples were sectioned into 5cm2 pieces which allowed in practice up to eight measurements to be made on each sample at different locations, i.e. mapping. The average strain in all samples was found to be compressive with no indication of tensile strain present in the film with an average value of 354MPa. Strain gradients were observed in all samples.
Galactic masers: kinematics, spiral structure and the disk dynamic state
Creators: name: Rastorguev, A. S.
name: Utkin, N. D.
name: Zabolotskikh, M. V.
name: Dambis, A. K.
name: Bajkova, A. T.
name: Bobylev, V. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences
subject: J.2
subject: 85A05

description: We applied the currently most comprehensive version of the statistical-parallax technique to derive kinematical parameters of the maser sample with 136 sources. Our kinematic model comprises the overall rotation of the Galactic disk and the spiral density-wave effects. We take into account the variation of radial velocity dispersion with Galactocentric distance. The best description of the velocity field is provided by the model with constant radial and vertical velocity dispersions, $(σU0, σW0) \approx (9.4 \pm 0.9~, 5.9 \pm 0.8)~ km/s$. We compute flat Galactic rotation curve over the Galactocentric distance interval from 3 to 15 kpc and find the local circular rotation velocity to be $ V_0 \approx (235-238)$~ km/s $\pm 7$~ km/s. We also determine the parameters of the four-armed spiral pattern (pitch angle $i \approx (-10.4 \pm 0.3)^\circ$ and the phase of the Sun $χ_0 \approx (125 \pm 10) ^\circ$). The radial and tangential spiral perturbations are about $f_R \approx (-6.9 \pm 1.4)$~km/s, $f_Θ\approx (+2.8 \pm 1.0$) ~km/s. The kinematic data yield a solar Galactocentric distance of $R_0 \approx (8.24 \pm 0.12)~kpc$. Based on rotation curve parameters and the asymmetric drift we Infer the exponential disk scale $H_D \approx (2.7 \pm 0.2)$ ~kpc under assumption of marginal stability of the intermediate-age disk, and finally we estimate the minimum local surface disk density, $Σ(R_0) > (26 \pm 3) ~ M_\odot pc^{-2}$.
description: 16 pages, 8 figures, 5 tables
title: The Implementation of Protective Measures and Communication of Cybersecurity Alerts in Germany - A Representative Survey of the Population
Creators: name: Kaufhold, Marc-André
name: Bäumler, Julian
name: Reuter, Christian
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2022
Subjects: subject: cyberthreat awareness
subject: cybersecurity behavior
subject: cybercrisis management
subject: population warning
subject: human-computer interaction

description: Despite the merits of digitization in private and professional spaces, critical infrastructures and societies are increasingly exposed to cyberattacks. We conducted a representative survey with German citizens (N=1,093) to examine how they assess the current and future cyber threat situation as well as possible protective measures in cyberspace. Furthermore, we asked what information and channels citizens need to be aware of cyber threats. Our findings indicate that large proportions of the German population feel inadequately informed about cyber threats and tend to only apply enforced security measures by programs (e.g., updates) and services (e.g., two-factor authentication). Furthermore, institutions such as state-level Computer Emergency Response Teams (CERTs) are relatively unknown among the population and respondents showed little confidence in German security authorities to cope with largescale attacks and ultimately protect citizens. Still, our participants prefer to receive cybersecurity information via installed security applications, television channels, or emergency warning apps.