cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Einschätzung des Lebensraumangebots für ausgestorbene Arten aus Fernerkundungs- und Forsteinrichtungsdaten am Beispiel des Haselhuhns (Tetrastes bonasia rupestris) im Nationalpark Schwarzwald
Creators: name: Handschuh, Markus
name: Birk, Sönke
name: Dreiser, Christoph
name: Förschler, Marc
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Haselhuhn
subject: Tetrastes bonasia
subject: Lebensraum
subject: Habitat
subject: LiDAR
subject: Forsteinrichtung
subject: regelbasierte Habitatmodellierung
subject: wissensbasierte Habitatmodellierung

description: Das Haselhuhn (Tetrastes bonasia rupestris) ist in Baden-Württemberg vor allem aufgrund Lebensraumverlusts erloschen. Im Nationalpark Schwarzwald, Teil des EG-Vogelschutzgebiets Nordschwarzwald, entstehen derzeit durch unterschiedliche Prozesse wahrscheinlich wieder geeignete Haselhuhnhabitate in größerem Umfang. Dies wirft die Frage nach einer möglichen Wiederansiedlung der für das Vogelschutzgebiet als wertgebend aufgeführten Vogelart auf. Daher überprüften wir in unserer Arbeit die saisonale Habitateignung von Waldbeständen im Nationalparkgebiet und quantifizierten das potenzielle Lebensraumangebot. Mangels Präsenzdaten der erloschenen Vogelart erfolgte dies durch eine wissens- und regelbasierte Ableitung des Habitatangebots aus Fernerkundungs- und Forsteinrichtungsdaten. Im Nationalparkgebiet umfassten geeignete Haselhuhn-Sommerhabitate im Jahr 2018 rund 1.550 ha, geeignete Winterhabitate rund 580 ha und Flächen mit ganzjähriger Habitateignung rund 275 ha, Tendenz jeweils zunehmend. Die Güte des Habitateignungsmodells ist exzellent. Da eine langfristig überlebensfähige Population des Haselhuhns auf Landschaftsebene geeignete Lebensräume benötigt, ist die Prüfung der Übertragbarkeit des Modells auf W Waldbestände außerhalb des Nationalparks geplant.
Supplementary material for Pfizer Oncology Bladder Cancer Medical Resources
Creators: name: Becker, Mauricio
name: Garas, Sam
Publisher: name: Pfizer
Year: 2025
Subjects: classificationCode: 329999
subject: Other biomedical and clinical sciences not elsewhere classified

description: Congress materials may include information for investigational products or for which the product is not approved and/or inconsistent with the product uses described in the Prescribing Information. Regulatory approval of investigational products or uses is dependent on the completion of the study programs and review by regulatory authorities. Pfizer does not suggest or recommend the use of Pfizer Products in any manner other than as described in the Prescribing Information. The clinical trial information is available at www.clinicaltrials.gov. This information is current as of January 1, 2025.
Additional file 1 of CAM: a novel aid system to analyse the coloration quality of thick blood smears using image processing and machine learning techniques
Creators: name: Fong Amaris, W. M.
name: Suárez, Daniel R.
name: Cortés-Cortés, Liliana J.
name: Martinez, Carol
Publisher: name: figshare
Year: 2024
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Supplementary Material 1: Table S1. Summary of the TNR, TPR, and F1-score obtained by each classifier during training. Table S2. Rates obtained during the system adjustment. These values were obtained from the validation set using the selected four features. Table S3. Features and parameters that showed the best results using the validation set.
Many-body nonlocality as a resource for quantum-enhanced metrology
Creators: name: Niezgoda, Artur
name: Chwedenczuk, Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We demonstrate that a many-body nonlocality is a resource for ultra-precise metrology. This result is achieved by linking the sensitivity of a quantum sensor with a combination of many-body correlation functions that witness the nonlocality. We illustrate our findings with some prominent examples---a collection of spins forming an Ising chain and a gas of ultra-cold atoms in any two-mode configuration.
description: 7 pages, 3 figures
On non-completely positive quantum dynamical maps on spin chains
Creators: name: Majewski, W. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The new arguments based on Majorana fermions indicating that non-completely positive maps can describe open quantum evolution are presented.
description: published; small changes
title: Presentation of the Programme of the 6th GI/ACM Standardization Workshop on Industrial Automation and Control Systems
title: The 6th IACS WS’21 September 28, 2021 Virtual
titleType: Subtitle
Creators: name: de Meer, Jan
name: Waedt, Karl
name: Rennoch, Axel
name: Hof, Hans-Joachim
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Keywords: Industrial Automation and Control Systems
subject: I4.0
subject: Standardization
subject: Smart Manufacturing
subject: Production Life Cycle
subject: Security Levels
subject: Functional Safety.

description: One of the important basic objectives of the 6th IACS WS’21 is to contribute to Sustainability achieved by standardization that is based on new I4.0 technologies such as Smart Manufacturing, Digital Twin, AI-based Robotics, Industrial Internet of Things and more.
Reliability and maintenance for interrelated systems
Creators: name: Armstrong, Michael John
Publisher: name: University of British Columbia
Year: 2009

description: In this paper we consider three topics in reliability and maintenance. Their common feature is the explicit consideration of interdependence, either amongst components within a machine, amongst stages in a logistics chain, or amongst machines sharing maintenance facilities. Chapter 1 examines measures of the contribution of a component towards a system's reliability; these measures include structural importance, marginal reliability importance, joint reliability importance, and link importance. We review these different measures and examine how they relate to each other. We show that some structural results previously derived for independent components continue to hold for associated components. We then propose extensions to each importance measure to cover components which have two failure modes rather than the conventional one, and show that these extensions largely retain the properties of the original definitions. Chapter 2 examines a system containing one machine subject to random failure, for which we wish to determine a maintenance policy and a spare ordering policy. We consider the solvability and desirability of jointly optimizing these two traditionally separate policies. We discuss why the general form of the problem is intractable and show how it might be approached using bounds and heuristic policies; more importantly, we examine several special cases which are more tractable. Particular attention is paid to systems which contain only one spare at a time; we show that these systems have some convexity properties which facilitate cost minimization. We subsequently consider systems which allow more than one spare, but make use of other restrictions or assumptions to simplify analysis. Chapter 3 examines how to coordinate maintenance for machines sharing repair facilities, a task which is commonly called the machine repairman problem. Existing studies of this problem make the restrictive assumption that repairs are performed only after machine failure; our work extends the machine repairman model by allowing preventive repair. We derive analytical results for a single critical age repair policy, and then use numerical studies to investigate other heuristic policies which can improve the system's cost effectiveness.
title: Einsatz von Deep Learning für den Test Eingebetteter Systeme
Creators: name: Bielefeldt, Jens
name: Basener, Kai-Uwe
name: Khan, Siddique Reza
name: Massah, Mozhdeh
name: Wiesbrock, Hans-Werner
name: Scharoba, Stefan
name: Hübner, Michael
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Test Eingebetteter Systeme
subject: Testdaten Generierung
subject: Deep Learning

description: Während der Durchführung von Funktions-, Stress- oder Laufzeittests eingebetteter Systeme fallen große Mengen von Testdaten an. Die Testläufe sind in der Regel, wenn auch nicht umfassend, von Testern und/oder Kunden ausgewertet worden, und können somit als Referenz für weitere Testdaten dienen. In dem Forschungsprojekt DeepTest wird versucht, mit Hilfe von Techniken des Deep Learning diese riesigen Datenmengen für das Training neuronaler Netze zu nutzen, um weitere, neue Tests zu generieren und Testmuster in ihnen zu identifizieren. In dem vorliegenden Artikel wird über den derzeitigen Stand der Forschung berichtet.
Thermal buckling and symmetry breaking in thin ribbons under compression
Creators: name: Hanakata, Paul Z.
name: Bhabesh, Sourav S.
name: Bowick, Mark J.
name: Nelson, David R.
name: Yllanes, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Understanding thin sheets, ranging from the macro to the nanoscale, can allow control of mechanical properties such as deformability. Out-of-plane buckling due to in-plane compression can be a key feature in designing new materials. While thin-plate theory can predict critical buckling thresholds for thin frames and nanoribbons at very low temperatures, a unifying framework to describe the effects of thermal fluctuations on buckling at more elevated temperatures presents subtle difficulties. We develop and test a theoretical approach that includes both an in-plane compression and an out-of-plane perturbing field to describe the mechanics of thermalised ribbons above and below the buckling transition. We show that, once the elastic constants are renormalised to take into account the ribbon's width (in units of the thermal length scale), we can map the physics onto a mean-field treatment of buckling, provided the length is short compared to a ribbon persistence length. Our theoretical predictions are checked by extensive molecular dynamics simulations of thin thermalised ribbons under axial compression.
description: 12 pages, 10 figures
From QCD Lagrangian to Monte Carlo simulation
Creators: name: Marchesini, Giuseppe
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: I discuss old and recent aspects of QCD jet-emission and describe how hard QCD results are used to construct Monte Carlo programs for generating hadron emission in hard collisions. I focus on the program HERWIG at LHC.
description: To be published in the volume String Theory of Fundamental Interactions, published on the 65th birthday of Gabriele Veneziano, M. Gasperini and J. Maharana editors (Springer, Berlin Heidelberg, 2007)
title: ExPD: Semi-automated Web Extraction of Personal Data
Creators: name: Böhner, Alexander
name: Herrmann, Dominik
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Subject Access Requests
subject: Crawler
subject: Case Study

description: According to the GDPR, data subjects can issue a Subject Access Request (SAR) to obtain all personal data concerning them from a data controller. Data controllers are interested to automate the handling of SARs, which is challenging for legacy applications and services that lack suitable export functionality. This challenge is addressed by the ExPD prototype, a tool that automates the task of collecting personal data from the pages of web applications. The ExPD operator specifies extraction rules interactively in the browser using a small set of pages. After extraction, a tool-assisted refinement stage allows to fine-tune the exported data. Besides automating the processing of SARs, ExPD may also be useful for citizens who want to obtain an overview of their public data footprint on sites that share user contributions, which is demonstrated in a case study.
Design and Workspace Characterisation of Malleable Robots
Creators: name: Clark, Angus B.
name: Rojas, Nicolas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: For the majority of tasks performed by traditional serial robot arms, such as bin picking or pick and place, only two or three degrees of freedom (DOF) are required for motion; however, by augmenting the number of degrees of freedom, further dexterity of robot arms for multiple tasks can be achieved. Instead of increasing the number of joints of a robot to improve flexibility and adaptation, which increases control complexity, weight, and cost of the overall system, malleable robots utilise a variable stiffness link between joints allowing the relative positioning of the revolute pairs at each end of the link to vary, thus enabling a low DOF serial robot to adapt across tasks by varying its workspace. In this paper, we present the design and prototyping of a 2-DOF malleable robot, calculate the general equation of its workspace using a parameterisation based on distance geometry---suitable for robot arms of variable topology, and characterise the workspace categories that the end effector of the robot can trace via reconfiguration. Through the design and construction of the malleable robot we explore design considerations, and demonstrate the viability of the overall concept. By using motion tracking on the physical robot, we show examples of the infinite number of workspaces that the introduced 2-DOF malleable robot can achieve.
description: 7 Pages, 7 figures, conference
The JCMT Spectral Legacy Survey
Creators: name: Plume, R.
name: Fuller, G. A.
name: Helmich, F.
name: van der Tak, F. F. S.
name: Roberts, H.
name: Bowey, J.
name: Buckle, J.
name: Butner, H.
name: Caux, E.
name: Ceccarelli, C.
name: van Dishoeck, E. F.
name: Friberg, P.
name: Gibb, A. G.
name: Hatchell, J.
name: Hogerheijde, M. R.
name: Matthews, H.
name: Millar, T.
name: Mitchell, G.
name: Moore, T. J. T.
name: Ossenkopf, V.
name: Rawlings, J.
name: Richer, J.
name: Roellig, M.
name: Schilke, P.
name: Spaans, M.
name: Tielens, A. G. G. M.
name: Thompson, M. A.
name: Viti, S.
name: Weferling, B.
name: White, Glenn J.
name: Wouterloot, J.
name: Yates, J.
name: Zhu, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stars form in the densest, coldest, most quiescent regions of molecular clouds. Molecules provide the only probes which can reveal the dynamics, physics, chemistry and evolution of these regions, but our understanding of the molecular inventory of sources and how this is related to their physical state and evolution is rudimentary and incomplete. The Spectral Legacy Survey (SLS) is one of seven surveys recently approved by the JCMT Board. Starting in 2007, the SLS will produce a spectral imaging survey of the content and distribution of all the molecules detected in the 345 GHz atmospheric window (between 332 GHz and 373 GHz) towards a sample of 5 sources. Our intended targets are: a low mass core (NGC1333 IRAS4), 3 high mass cores spanning a range of star forming environments and evolutionary states (W49, AFGL2591, and IRAS20126), and a PDR (the Orion Bar). The SLS will use the unique spectral imaging capabilities of HARP-B/ACSIS to study the molecular inventory and the physical structure of these objects, which span different evolutionary stages and physical environments, to probe their evolution during the star formation process. As its name suggests, the SLS will provide a lasting data legacy from the JCMT that is intended to benefit the entire astronomical community. As such, the entire data set (including calibrated spectral datacubes, maps of molecular emission, line identifications, and calculations of the gas temperature and column density) will be publicly available.
description: 34 pages, 1 figure - Accepted to PASP
title: Supporting Security in Industrial Automation and Control Systems using Domain-Specific Modelling
Creators: name: Altschaffel, Robert
name: Hempel, Ivo
name: Keil, Oliver
name: Schindler, Josef
name: Szemkus, Martin
name: Dittmann, Jana
name: Lange, Matthias
name: Waedt, Karl
name: Ding, Yongjian
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Industrial Automation and Control Systems
subject: Security
subject: Modelling
subject: Standards

description: This paper explores how domain specific modelling can be used to support the identification of potential vulnerabilities and risks in Industrial Automation and Control Systems (IACS) to enhance security by enabling a mitigation of these vulnerabilities. This approach can be used to support already deployed IACS or to include Security-by-Design and Security Defence-in-Depth principles in the planning of future facilities. This paper explores the requirements for such a modelling approach including domain and security specific aspects. Three interlinked aspects of IACS which require different modelling approaches are identified leading to three distinct types of models: Infrastructure, cyber-process, and physical process. These three types are relevant for different attack vectors and to judge the potential impact of any attack. This paper shows examples for these three models and how these models can be used to identify vulnerabilities with the aim to close them.
Additional file 1 of Exploring transmission dynamics of the Sarcoptes scabiei mite in humans by combining molecular typing and epidemiological variables, the Netherlands 2016–2023
Creators: name: Vink, Martijn
name: Coppoolse, Hester
name: Bergmans, Anneke
name: Wennekes, Meike
name: Pas, Suzan
name: Pattipeilohy-van Ommen, Jane
name: Braks, Marieta
name: Bruisten, Sylvia
name: Galimont-Collen, Annemie
name: Wintermans, Bas
name: Fanoy, Ewout
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 1: Questionnaire. Questionnaire in Dutch was translated to English and used to collect epidemiological data from scabies patients.
Hubble Space Telescope Astrometry of the Metal-Poor Visual Binary $μ$ Cassiopeiae: Dynamical Masses, Helium Content, and Age
Creators: name: Bond, Howard E.
name: Schaefer, Gail H.
name: Gilliland, Ronald L.
name: VandenBerg, Don A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: $μ$ Cassiopeiae is a nearby, high-velocity, metal-poor ($\rm[Fe/H]=-0.81$) visual binary. We have used high-resolution imaging with the Hubble Space Telescope (HST), obtained over nearly two decades, to determine the period (21.568 yr) and precise orbital elements. Combining these with published ground- and space-based astrometry, we determined dynamical masses for both components of $μ$ Cas: $0.7440\pm0.0122\,M_\odot$ for the G5 V primary, and $0.1728\pm0.0035\,M_\odot$ for its faint dM companion. We detect no significant perturbations in the HST astrometry due to a third body in the system. The primary aim of our program was to determine, with the aid of stellar models, the helium content and age of the metal-deficient primary star, $μ$ Cas A. Although we now have a precise mass, there remain uncertainties about other parameters, including its effective temperature. Moreover, a re-examination of archival interferometric observations leads to a suspicion that the angular diameter was overestimated by a few percent. In the absolute magnitude versus color plane, $μ$ Cas A lies slightly cooler and more luminous than the main sequence of the globular cluster 47 Tucanae; this may imply that the star has a lower helium content, and/or is older, and/or has a higher metallicity, than the cluster. Our best estimates for the helium content and age of $μ$ Cas A are $Y=0.255\pm0.014$ and $12.7\pm2.7$ Gyr--making $μ$ Cas possibly the oldest star in the sky visible to the naked eye. Improved measurements of the absolute parallax of the system, the effective temperature of $μ$ Cas A, and its angular diameter would provide tighter constraints.
description: Accepted by Astrophysical Journal
A new method for the spectroscopic identification of stellar non-radial pulsation modes. II. Mode identification of the Delta Scuti star FG Virginis
Creators: name: Zima, W.
name: Wright, D.
name: Bentley, J.
name: Cottrell, P. L.
name: Heiter, U.
name: Mathias, P.
name: Poretti, E.
name: Lehmann, H.
name: Montemayor, T. J.
name: Breger, M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a mode identification based on new high-resolution time-series spectra of the non-radially pulsating Delta Scuti star FG~Vir (HD 106384, V = 6.57, A5V). From 2002 February to June a global Delta Scuti Network (DSN) campaign, utilizing high-resolution spectroscopy and simultaneous photometry has been conducted for FG~Vir in order to provide a theoretical pulsation model. In this campaign we have acquired 969 Echelle spectra covering 147 hours at six observatories. The mode identification was carried out by analyzing line profile variations by means of the Fourier parameter fit method, where the observational Fourier parameters across the line are fitted with theoretical values. This method is especially well suited for determining the azimuthal order m of non-radial pulsation modes and thus complementary with the method of Daszynska-Daszkiewicz (2002) which does best at identifying the degree l. 15 frequencies between 9.2 and 33.5 c/d were detected spectroscopically. We determined the azimuthal order m of 12 modes and constrained their harmonic degree l. Only modes of low degree (l <= 4) were detected, most of them having axisymmetric character mainly due to the relatively low projected rotational velocity of FG Vir. The detected non-axisymmetric modes have azimuthal orders between -2 and 1. We derived an inclination of 19 degrees, which implies an equatorial rotational rate of 66 km/s.
description: 14 pages, 26 figures
Inverse Tides in Pulsating Binary Stars
Creators: name: Fuller, Jim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In close binary stars, the tidal excitation of pulsations typically dissipates energy, causing the system to evolve towards a circular orbit with aligned and synchronized stellar spins. However, for stars with self-excited pulsations, we demonstrate that tidal interaction with unstable pulsation modes can transfer energy in the opposite direction, forcing the spins of the stars away from synchronicity, and potentially pumping the eccentricity and spin-orbit misalignment angle. This "inverse" tidal process only occurs when the tidally forced mode amplitude is comparable to the mode's saturation amplitude, and it is thus most likely to occur in main sequence gravity mode pulsators with orbital periods of a few days. We examine the long-term evolution of inverse tidal action, finding the stellar rotation rate can potentially be driven to a very large or very small value, while maintaining a large spin-orbit misalignment angle. Several recent asteroseismic analyses of pulsating stars in close binaries have revealed extremely slow core rotation periods, which we attribute to the action of inverse tides.
description: Accepted to MNRAS, comments welcome
Production experiment, subject 35
Creators: name: Lau-Preechathammarach, Raksit Tyler
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2023
Subjects: subject: kdt

description: Target and distractor stimuli embedded in carrier sentences. Subject is a 39-year-old male. Carried out in a quiet room in the temple of Wat Nakharin in Ban Khi Nak.
Additional file 2 of Exploring transmission dynamics of the Sarcoptes scabiei mite in humans by combining molecular typing and epidemiological variables, the Netherlands 2016–2023
Creators: name: Vink, Martijn
name: Coppoolse, Hester
name: Bergmans, Anneke
name: Wennekes, Meike
name: Pas, Suzan
name: Pattipeilohy-van Ommen, Jane
name: Braks, Marieta
name: Bruisten, Sylvia
name: Galimont-Collen, Annemie
name: Wintermans, Bas
name: Fanoy, Ewout
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology
subject: Computational Biology

description: Additional file 2: Figure S1. Neighbour Joining tree (n = 1000 bootstraps) of representatives of the 15 cox1 sequence subtypes found in skin samples from 128 patients, 1 chamois and 6 reference sequences from GenBank. Members of each clade (A–D) are shown in different branch colours. Accession numbers: AB779595.1 = water buffalo Egypt; AY493381.1 = hominis 8 Panama; AY493382.1 = hominis 208 Australia; AY493388.1 = hominis 10 Australia; AY493395.1 = canis 9 USA; KJ748528.1 = canis 5 China). Numbers in grey are bootstrap values (%).
Excitation and evolution of coronal oscillations in self-consistent 3D radiative MHD simulations of the solar atmosphere
Creators: name: Kohutova, P.
name: Popovas, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Solar coronal loops are commonly subject to oscillations. Observations of coronal oscillations are used to infer physical properties of the coronal plasma using coronal seismology. Excitation and evolution of oscillations in coronal loops is typically studied using highly idealised models of magnetic flux-tubes. In order to improve our understanding of coronal oscillations, it is necessary to consider the effect of realistic magnetic field topology and evolution. We study excitation and evolution of coronal oscillations in three-dimensional self-consistent simulations of solar atmosphere spanning from convection zone to solar corona using radiation-MHD code Bifrost. We use forward-modelled EUV emission and three-dimensional tracing of magnetic field to analyse oscillatory behaviour of individual magnetic loops. We further analyse the evolution of individual plasma velocity components along the loops using wavelet power spectra to capture changes in the oscillation periods. Various types of oscillations commonly observed in the corona are present in the simulation. We detect standing oscillations in both transverse and longitudinal velocity components, including higher order oscillation harmonics. We also show that self-consistent simulations reproduce existence of two distinct regimes of transverse coronal oscillations: rapidly decaying oscillations triggered by impulsive events and sustained small-scale oscillations showing no observable damping. No harmonic drivers are detected at the footpoints of oscillating loops. We show that coronal loop oscillations are abundant in self-consistent 3D MHD simulations of the solar atmosphere. The dynamic evolution and variability of individual magnetic loops suggest we need to reevaluate our models of monolithic and static coronal loops with constant lengths in favour of more realistic models.
description: 13 pages, 11 figures, accepted for publication in A&A
CO oxidation at Pd(100): A first-principles constrained thermodynamics study
Creators: name: Rogal, Jutta
name: Reuter, Karsten
name: Scheffler, Matthias
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The possible formation of oxides or thin oxide films (surface oxides) on late transition metal surfaces is recently being recognized as an essential ingredient when aiming to understand catalytic oxidation reactions under technologically relevant gas phase conditions. Using the CO oxidation at Pd(100) as example, we investigate the composition and structure of this model catalyst surface over a wide range of (T,p)-conditions within a multiscale modeling approach where density-functional theory is linked to thermodynamics. The results show that under the catalytically most relevant gas phase conditions a thin surface oxide is the most stable "phase" and that the system is actually very close to a transition between this oxidic state and a reduced state in form of a CO covered Pd(100) surface.
description: 13 pages including 7 figures; related publications can be found at http://www.fhi-berlin.mpg.de/th/th.html
title: Exploration and systematic assessment of the resource efficiency of Machine Learning
Creators: name: Guldner, Achim
name: Kreten, Sandro
name: Naumann, Stefan
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: resource efficiency
subject: energy and hardware assessment
subject: measurement and analysis method

description: Estimations of today’s energy consumption of information and communication technologies (ICT) range from 2 to 9 % of the total produced energy and forecasts for the year 2030 predict an increase up to 21 %. Even though these numbers are controversial, it cannot be denied that the consumption growth of large impact factors, like data centers, networks, consumer devices, and the production of ICT needs to be reduced. In addition to Green IT, which is primarily focused on hardware, software is increasingly seen as an energy consumer with considerable savings potential. In this paper, we take a look at software for artificial intelligence (AI) and especially machine learning (ML). We describe a method for in-depth measurement and analyses of the energy consumption and hardware usage of ML algorithms and a series of experiments where we use the method on convolutional neural networks (CNN). We also compare existing estimation methods with our own. As outlook, we propose a holistic approach along the AI life cycle and additional experiments and assessments that could show potential efficiency improvements and consumption savings in AI.
k-cosymplectic classical field theories: Tulczyjew, Skinner--Rusk and Lie-algebroid formulations
Creators: name: Rey, Angel M.
name: Roman-Roy, Narciso
name: Salgado, Modesto
name: Vilarino, Silvia
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 70S05, 53D05, 53Z05

description: The k-cosymplectic Lagrangian and Hamiltonian formalisms of first-order field theories are reviewed and completed. In particular, they are stated for singular and almost-regular systems. Subsequently, several alternative formulations for k-cosymplectic first-order field theories are developed: First, generalizing the construction of Tulczyjew for mechanics, we give a new interpretation of the classical field equations in terms of certain submanifolds of the tangent bundle of the $k^1$-velocities of a manifold. Second, the Lagrangian and Hamiltonian formalisms are unified by giving an extension of the Skinner-Rusk formulation on classical mechanics. Finally, both formalisms are formulated in terms of Lie algebroids.
description: This is a complete revised version of the former article: "k-cosymplectic formalism in classical field theory: the Skinner--Rusk approach". The paper has been enlarged, adding two new formulations of the k-cosymplectic formalism of field theories. The bibliography has been uploaded and completed. The title has been changed. 49 pp
Historical institutionalism in world politics : prospects for democratisation
Creators: name: Kuyper, Jonathan
Publisher: name: The Australian National University
Year: 2012
Subjects: subject: JC423.K87 2012
subject: Democratization
subject: Democracy
subject: Globalization
subject: International relations
subject: Civil society International cooperation

description: How can democratisation best be pursued and promoted in the existing global system? Most proposals to ameliorate the global democratic deficit are conceptualised as ideal end-points which should be approximated as closely as possible. However, because there is an ineliminable gap between ideal conception and non-ideal institutionalisation, designers should redirect focus toward the transformative pathway. Institutional designers and policymakers thus require foreknowledge about how institutions may evolve through time. I contend that historical institutionalism - well-placed as it is to incorporate rationalist and sociological insights - can be recalibrated to think through these future pathways. I argue that the structure, sequence, and setting of a proposal all shed light on how institutions may change and the wider effects design might entail. The task for institutional designers then is to determine whether a transformative pathway can feasibly promote democratic values. I reconceptualise global democracy as an on-going process of democratisation promoted by the attainment of three values: equal participation, accountability, and institutional revisability. The thesis engages in comparative analysis of three ideal-typical proposals for global democratisation: federalism (world government), cosmopolitan democracy (piecemeal constitutionalism), and democratic polycentrism (global civil society). Having analysed these approaches, I argue that federalist models -which seek to replicate familiar statist institutions at the global level - would have difficulty inducing the democratising effects sought by proponents. Similarly, cosmopolitan democratic institutions would likely limit future experimentation through path-dependent feedback. While the deliberative base of global civil society offers a more fruitful way to think about global democratisation, it is difficult to envisage how this approach meets a fundamental equality condition of democratic participation. Building on the comparative analysis, I contend that regime complexes are the appropriate unit of democratisation beyond the state. Because each issue area in world politics is different, we require tailor-made (as opposed to one-size-fits-all) solutions. Through a discussion of the intellectual property rights regime complex, I contend that democratisation can be sought on two planes: horizontal deliberative accountability within multilateral negotiations; and the vertical development of deliberative democratic experimentalism. I apply my historical-institutionalist framework to expound both normative and institutional benefits of this prescription.
Physical model for vaporization
Creators: name: Garai, Jozsef
Publisher: name: arXiv
Year: 2006
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: Based on two assumptions, the surface layer is flexible, and the internal energy of the latent heat of vaporization is completely utilized by the atoms for overcoming on the surface resistance of the liquid, the enthalpy of vaporization was calculated for 45 elements. The theoretical values were tested against experiments with positive result.
Affleck-Dine Baryogenesis, Split Supersymmetry, and Inflation
Creators: name: Charng, Yeo-Yie
name: Lee, Da-Shin
name: Leung, Chung Ngoc
name: Ng, Kin-Wang
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is shown that, in the context of split supersymmetry, a simple model with a single complex scalar field can produce chaotic inflation and generate the observed amount of baryon asymmetry via the Affleck-Dine mechanism. While the inflaton quantum fluctuations give rise to curvature perturbation, we show that quantum fluctuations of the phase of the scalar field can produce baryonic isocurvature perturbation. Combining with constraints from WMAP data, all parameters in the model can be determined to within a narrow range.
description: version accepted for publication in PRD
The DFSZ axion in the CMB
Creators: name: Ferreira, Ricardo Z.
name: Notari, Alessio
name: Rompineve, Fabrizio
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We perform for the first time a dedicated analysis of cosmological constraints on DFSZ QCD axion models. Such constructions are especially interesting in light of the recent Xenon-1T excess and of hints from stellar cooling. In DFSZ models, for $m_a\gtrsim 0.1$ eV, scatterings of pions and muons can produce a sizable cosmic background of thermal axions, that behave similarly to massive neutrinos. However, the pion coupling depends on the alignment between the vevs of two Higgs doublets, and can be significantly suppressed or enhanced with respect to the KSVZ scenario. Using the latest Planck and BAO data, we find $m_a\leq 0.2~\text{eV}$ at $95\%$ C.L., when the axion coupling to pions $c_{aπ}$ is maximal. Constraints on $m_a$, instead, can be significantly relaxed when $c_{aπ}$ is small. In particular, we point out that in the so-called DFSZ-II model, where the axion coupling to leptons does not vanish simultaneously with $c_{aπ}$, production via muons gives $m_a\leq 0.6~\text{eV}$ at $95\%$ C.L., whereas in the DFSZ-I model bounds on $m_a$ can be fully lifted. We then combine cosmological data with recent hints of a DFSZ axion coupled to electrons from the Xenon-1T experiment, finding in this case that the axion mass is constrained to be in the window $0.07 ~\text{eV} \lesssim m_a \lesssim 1.8\, (0.3)~\text{eV}$ for the DFSZ-I (DFSZ-II) model. A similar analysis with stellar cooling hints gives $3 ~\text{meV} \lesssim m_a \lesssim 0.2 ~\text{eV}$ for DFSZ-II, while no constraint arises in the DFSZ-I case. Forthcoming CMB Stage 4 experiments will be able to further test such scenarios; for instance the Xenon-1T window should be fully probed at $2σ$ for a DFSZ-I axion.
description: 14 pages, 10 figures
Carbon-poor stellar cores as supernova progenitors
Creators: name: Waldman, Roni
name: Barkat, Zalman
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Exploring stellar models which ignite carbon off-center (in the mass range of about 1.05 - 1.25 Msun, depending on the carbon mass fraction) we find that they may present an interesting SN I progenitor scenario, since whereas in the standard scenario runaway always takes place at the same density of about 2 X 10^9 gr/cm^3, in our case, due to the small amount of carbon ignited, we get a whole range of densities from 1 X 10^9 up to 6 X 10^9 gr/cm^3. These results could contribute in resolving the emerging recognition that at least some diversity among SNe I exists, since runaway at various central densities is expected to yield various outcomes in terms of the velocities and composition of the ejecta, which should be modeled and compared to observations.
description: 49 pages, 20 figures
Quasi-normal mode analysis in BEC acoustic black holes
Creators: name: Barcelo, C.
name: Cano, A.
name: Garay, L. J.
name: Jannes, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform a quasi-normal mode analysis of black hole configurations in Bose-Einstein condensates (BEC). In this analysis we use the full Bogoliubov dispersion relation, not just the hydrodynamic or geometric approximation. We restrict our attention to one-dimensional flows in BEC with step-like discontinuities. For this case we show that in the hydrodynamic approximation quasi-normal modes do not exist. The full dispersion relation, however, allows the existence of quasi-normal modes. Remarkably, the spectrum of these modes is not discrete but continuous.
description: 7 pages, 3 figures
title: Digitale Mündigkeit fördern in IT-nahen Studiengängen
title: Entwicklung von Learning Outcomes am Beispiel eines Studiengangs
titleType: Subtitle
Creators: name: Gumm, Dorina
name: Beer, Sonja
name: Schumacher, Stephan
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Digitale Mündigkeit
subject: Future Skills
subject: IT-nahe Studiengänge
subject: Curriculumsentwicklung

description: In einem Projekt an der TH Lübeck untersuchen wir, was die Förderung Digitaler Kompetenzen im Sinne einer Digitalen Mündigkeit für unsere Informatik- und IT-nahen Studiengänge konkret bedeuten und wie eine Verankerung in den Ausbildungsprozess erfolgen kann. In diesem Paper legen wir zunächst verschiedene Perspektiven auf Digitale Kompetenzen dar, begründen, welchem Verständnis wir in dem vorgestellten Projekt folgen, und beschreiben bisherige Problemstellungen für die Umsetzung in Studiengängen. Unter Berücksichtigung des Kontextes legen wir dann das Vorgehen des Projektes dar und diskutieren, welche Erkenntnisse zur Förderung Digitaler Mündigkeit abgeleitet werden können und welche Bedeutung diese Erkenntnisse für die Konzeptbildung zu Digitalen Kompetenzen haben können.
Listening to the quantum vacuum: a perspective on the dynamical Casimir effect
Creators: name: Paraoanu, Gheorghe Sorin
name: Johansson, Göran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: Modern quantum field theory has offered us a very intriguing picture of empty space. The vacuum state is no longer an inert, motionless state. We are instead dealing with an entity teeming with fluctuations that continuously produce virtual particles popping in and out of existence. The dynamical Casimir effect is a paradigmatic phenomenon, whereby these particles are converted into real particles (photons) by changing the boundary conditions of the field. It was predicted 50 years ago by Gerald T. Moore and it took more than 40 years until the first experimental verification.
description: 6 pages, 2 figures
A LabVIEW module to promote undergraduate research in control of AC servo motors of robotics manipulator
Creators: name: Yahya, S
name: Moghavvemi, M
name: H.A.F, Almurib,
name: H., Al-Rizzo,
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 400901
subject: Analog electronics and interfaces
classificationCode: 400902
subject: Digital electronic devices
classificationCode: 400905
subject: Electronic instrumentation
classificationCode: 400906
subject: Electronic sensors
classificationCode: 461204
subject: Programming languages
classificationCode: 461206
subject: Software architecture
classificationCode: 461207
subject: Software quality, processes and metrics
classificationCode: 461201
subject: Automated software engineering
classificationCode: 390405
subject: Educational technology and computing

description: This paper presents a project-based learning pedagogy for undergraduate mechanical engineering students which integrates traditional hardware-based laboratory with LabVIEW to control the angular position, velocity, and acceleration of AC servo motors of a six-degree of freedom manipulator. The proposed experimental modules have been proved to be very effective in assisting teams of undergraduate students within the Department of Mechanical, Materials and Manufacturing Engineering at the University of Nottingham, Malaysia Campus, who have used the modules in designing a new mechanical structure of a robot during their capstone design project. The proposed pedagogy inspired undergraduate students to publish their first paper based on the outcomes of their project. The focus on this paper is to present how the students' learning experience has been significantly enforced and their role in developing the modules introduced in this paper. Three modules are presented; the first configures a timer to generate a signal that drives the servo motors. The second drives the servo motor to a specific angular position with a constant angular velocity. Finally, the third is used to control the servo motor to follow any desired angular position, velocity, and acceleration.
title: An architecture for detecting infrastructure anomalies at Germany’s Federal Employment Agency
Creators: name: Ludsteck, Johannes
name: Sultanow, Eldar
name: Chircu, Alina
name: Herget, Gebhard
name: Seßler, Matthias
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: Machine Learning Architecture
subject: Enterprise Architecture
subject: Time Series
subject: Operations

description: The data centers of Germany’s Federal Employment Agency (FEA) provide an information technology (IT) infrastructure that is critical for both external stakeholders and internal processes. For FEA and many other organizations like it, it is essential that any IT infrastructure anomalies - deviations from normal behavior - are detected and their underlying causes are understood and, if appropriate, addressed. In this paper we develop a solution that can help increase the availability of an IT landscape such as FEA’s that is characterized by increasing technical complexity and increasing relevance of its applications. The solution detects IT service anomalies based on IT service access logs analyzed with time series methods. The solution also provides visualizations to support further analyses.
Birational Mappings and Matrix Sub-algebra from the Chiral Potts Model
Creators: name: Preissmann, E.
name: d'Auriac, J. -Ch. Anglès
name: Maillard, J. -M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 82B20; 05B20; 05E30; 32H50

description: We study birational transformations of the projective space originating from lattice statistical mechanics, specifically from various chiral Potts models. Associating these models to \emph{stable patterns} and \emph{signed-patterns}, we give general results which allow us to find \emph{all} chiral $q$-state spin-edge Potts models when the number of states $q$ is a prime or the square of a prime, as well as several $q$-dependent family of models. We also prove the absence of monocolor stable signed-pattern with more than four states. This demonstrates a conjecture about cyclic Hadamard matrices in a particular case. The birational transformations associated to these lattice spin-edge models show complexity reduction. In particular we recover a one-parameter family of integrable transformations, for which we give a matrix representation
description: 22 pages 0 figure The paper has been reorganized, splitting the results into two sections : results pertaining to Physics and results pertaining to Mathematics
title: Make Up Your MINT: Multimediale Popup-Lernlabore
Creators: name: Bade, Korinna
name: Böhnke, Stephanie
name: Hirschel, Andrea
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2021
Subjects: subject: MINT-Interessensförderung für Mädchen
subject: Lernlabor
subject: online
subject: außerschulisch

description: Die richtige Studienwahl, die Spaß bringt, finanzielle Freiheiten eröffnet, Sicherheit verspricht und eine individuelle Karrieregestaltung ermöglicht – wer will das nicht? Insbesondere mit einem Informatik-Studium kann all das erreichbar sein, denn Digitalisierung spielt in jedem Lebensbereich eine Rolle und die „Grand Challenges der Informatik“2 bieten eine Menge Herausforderungen, die von den Fachkräften von heute und morgen gemeistert werden müssen. Der Weg zum passenden Studium ist jedoch oft steinig, die Entscheidung schwierig und Vorbilder Mangelware. Unser MINT-Orientierungsangebot „Make up your MINT“ unterstützt junge Frauen in dieser Findungsphase. In Online-Lernlaboren können sie ihre Berufsvorstellungen festigen und mit praktischen Erfahrungen untersetzen.