cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The gap between Gromov-vague and Gromov-Hausdorff-vague topology
Creators: name: Athreya, Siva
name: Löhr, Wolfgang
name: Winter, Anita
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: Primary: 60B05, 60B10, Secondary: 05C80, 60B99

description: In Athreya, Löhr, Winter (2016), an invariance principle is stated for a class of strong Markov processes on tree-like metric measure spaces. It is shown that if the underlying spaces converge Gromov vaguely, then the processes converge in the sense of finite dimensional distributions. Further, if the underlying spaces converge Gromov-Hausdorff vaguely, then the processes converge weakly in path space. In this paper we systematically introduce and study the Gromov-vague and the Gromov-Hausdorff-vague topology on the space of equivalence classes of metric boundedly finite measure spaces. The latter topology is closely related to the Gromov-Hausdorff-Prohorov metric which is defined on different equivalence classes of metric measure spaces. We explain the necessity of these two topologies via several examples, and close the gap between them. That is, we show that convergence in Gromov-vague topology implies convergence in Gromov-Hausdorff-vague topology if and only if the so-called lower mass-bound property is satisfied. Furthermore, we prove and disprove Polishness of several spaces of metric measure spaces in the topologies mentioned above (summarized in Figure~1). As an application, we consider the Galton-Watson tree with critical offspring distribution of finite variance conditioned to not get extinct, and construct the so-called Kallenberg-Kesten tree as the weak limit in Gromov-Hausdorff-vague topology when the edge length are scaled down to go to zero.
Post-fire wood management alters water stress, growth and performance of pine regeneration in a Mediterranean ecosystem
Creators: name: Marañón Jiménez, Sara
name: Castro, Jorge
name: Querejeta, Jose Ignacio
name: Fernández-Ondoño, Emilia
name: Allen, Craig
Publisher: name: Zenodo
Year: 2013

description: Extensive research has focused on comparing the impacts of post-fire salvage logging versus those of less aggressive management practices on forest regeneration. However, few studies have addressed the effects of different burnt-wood management options on seedling/sapling performance, or the ecophysiological mechanisms underlying differences among treatments. In this study, we experimentally assess the effects of post-fire management of the burnt wood on the growth and performance of naturally regenerating pine seedlings (Pinus pinaster). Three post-fire management treatments varying in degree of intervention were implemented seven months after a high-severity wildfire burned Mediterranean pine forests in the Sierra Nevada, southeast Spain: a) “No Intervention” (NI, all burnt trees left standing); b) “Partial Cut plus Lopping” (PCL, felling most of the burnt trees, cutting off branches, and leaving all the biomass on site without mastication); and c) “Salvage Logging” (SL, felling the burnt trees, piling up the logs and masticating the fine woody debris). Three years after the fire, the growth, foliar nutrient concentrations, and leaf carbon, nitrogen and oxygen isotopic composition (δ13C, δ18O and δ15N) of naturally regenerating seedlings were measured in all the treatments. Pine seedlings showed greatest vigor and size in the PCL treatment, whereas growth was poorest in SL. The nutrient concentrations were similar among treatments, although greater growth in the two treatments with residual wood present indicated higher plant uptake. Seedlings in the SL treatment showed high leaf δ13C and δ18O values indicating severe water stress, in contrast to significantly alleviated water stress indications in the PCL treatment. Seedling growth and physiological performance in NI was intermediate between that of PCL and SL. After six growing seasons, P. pinaster saplings in PCL showed greater growth and cone production than SL saplings. In summary, salvage logging has a detrimental effect on the ecophysiological performance and growth of naturally regenerating pine seedlings, compared to alternative post-fire management practices in which burnt logs and branches are left in situ. Improved seedling growth and performance is associated with the amelioration of microsite/microclimate conditions by the presence of residual burnt wood, which alleviates seedling drought stress and improves nutrient availability through the decomposition of woody debris.
title: Calculation of the Photon Flux in a Photo-Multiplier Tube with Deep Learning
Creators: name: Bhanderi, Jigar
name: Funk, Stefan
name: Malyshev, Dmitry
name: Vogel, Naomi
name: Zmĳa, Andreas
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Intensity interferometry||IACTs||deep neural networks

description: Intensity interferometry is part of optical interferometry, which provides a sub-milliarcsecond resolution of astronomical objects. In intensity interferometry one correlates intensities of optical fluxes rather than amplitudes of waves. For a successful measurement one needs a large light collecting area for several telescopes separated by hundreds of meters and good time resolution of the intensity flux. Air Cherenkov telescopes, e.g., H.E.S.S. are a natural candidate for performing such a measurement. One of the important tasks is to determine the rate of photons hitting the PMTs to calculate expectations on the signal-to-noise ratio. For low rates, the individual pulses can be resolved and counted, but for high rates, relevant for the IACTs, the pulses from the photons overlap. We use different neural network algorithms in order to determine the rate of photons hitting the PMT, including the high rates.
Supersymmetry and non-Abelian T-duality in type II supergravity
Creators: name: Kelekci, Özgür
name: Lozano, Yolanda
name: Macpherson, Niall T.
name: Colgáin, Eoin Ó
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the effect of T-duality on supersymmetry in the context of type II supergravity. For both U(1) Abelian and SU(2) non-Abelian T-duality, we demonstrate that the supersymmetry variations after T-duality are related to the variations before T-duality through the Kosmann spinorial Lie derivative, which vanishes when the Killing spinors are independent of the T-duality directions. As a byproduct of our analysis, we present closed expressions for SU(2) T-duality in a class of spacetimes with diagonal Bianchi IX symmetry and comment on specific examples of T-dual geometries, including a novel AdS3 geometry with large N = (0,4) superconformal symmetry.
description: 34 pages, v2, wording improved, references updated, v3 references added, matches published version; v4 signs in section 6 changed to make consistent with earlier sections, erroneous statement about supersymmetry of AdS3 S3 S3 S1 non-Abelian T-dual corrected, reference added
Fachdidaktische Tagespraktika im Potsdamer Modell der Lehrerbildung
Creators: name: Rother, Stefanie
name: Tosch, Frank
name: Wendland, Mirko
Publisher: name: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung.
Year: 2023

description: Der Beitrag befasst sich mit dem Kompetenzerleben von Lehramtsstudierenden der Universität Potsdam im Rahmen ihres Fachdidaktischen Tagespraktikums (FTP), in dem sie erstmals eigene Unterrichtserfahrungen sammeln. Ziel der Begleitstudie ist es, den Beitrag der Schulpraktischen Studien zum Kompetenzerwerb der Lehramtsstudierenden der Studiengänge „Lehramt für die Primarstufe“ und „Lehramt für die Sekundarstufen I und II (allgemeinbildende Fächer)“ zu erforschen und passgenaue Lehrveranstaltungs- und Begleitformate zu identifizieren. Hierfür wird eine Kohorte Lehramtsstudierender (N = 578) durch die fünf Schulpraktischen Studien des Potsdamer Modells der Lehrerbildung mit einer Online-Befragung begleitet. Für das FTP erweisen sich die „Unterrichtsbesprechungen“, die „Zusammenarbeit in der Kleingruppe“ und die „Seminaristische Begleitung“ als zentrale Parameter des Kompetenzerlebens, wobei die „Wichtigkeit der vorbereitenden, begleitenden und auswertenden Lehrveranstaltungen“ den stärksten Einfluss auf das Kompetenzerleben der Studierenden zeigt. Die drei Gelingensfaktoren und ihre Einflüsse auf die Kompetenzeinschätzung der Studierenden werden durch eine qualitative Analyse der offenen Rückmeldungen der Studierenden weiter untermauert. In der abschließenden Diskussion werden Folgerungen für die Weiterentwicklung der Schulpraktischen Studien erörtert.
description: PraxisForschungLehrer*innenBildung. Zeitschrift für Schul- und Professionsentwicklung., Bd. 5 Nr. 1 (2023): PraxisForschungLehrer*innenBildung – Ausgabe 5
title: Literatur-Review: State of the Art des Wertbeitrags der IT zum Unternehmenserfolg
Creators: name: Wagner, Gian-Luca
name: Beckmann, Helmut
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Wertbeitrag der IT||State of the Art||Unternehmen||Verständnis des Wertbeitrags||Ansätze zur Messbarkeit

description: Der Wertbeitrag der IT stellt ein kontrovers diskutiertes und diffuses Thema dar. Hierbei existieren viele Auffassungen was unter dem Wertbeitrag der IT verstanden wird und wie sich dieser definiert. Weiter ist nicht genau bekannt, wie sich der Wertbeitrag der IT auf Unternehmensebene äußert und so messbar gemacht werden kann. Diese Arbeit untersucht mithilfe einer systematischen Literaturanalyse den State of the Art des Wertbeitrags der IT zum Unternehmenserfolg und schafft hierbei ein Verständnis, was konkret unter dem Wertbeitrag der IT verstanden wird, wie sich dieser im Unternehmenskontext äußert und welche Ansätze existieren, diesen festzustellen.
Tachyonic matter cosmology with exponential and hyperbolic potentials
Creators: name: Pourhassan, B.
name: Naji, J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we consider tachyonic matter in spatially at FRW universe, and obtain behavior of some important cosmological parameters for two special cases of potentials. First we assume the exponential potential and then consider hyperbolic cosine type potential. In both cases we obtain behavior of the Hubble, deceleration and EoS parameters. Comparison with observational data suggest the model with hyperbolic cosine type scalar-field potentials has good model to describe universe.
description: 12 pages, 8 figures
Con burocracia no hay ciencia
Creators: name: Moreno, Luis
Publisher: name: Digital.CSIC
Year: 2018
Subjects: burocracia
ciencia
investigación
administración pública

description: El presente de la actividad científica e investigadora en España está lastrado por una maquinaria de gestión administrativa y de servicios inapropiada para los tiempos que corren. Tal telaraña burocrática se ha convertido en una auténtica rémora para optimizar los dineros públicos que, en España, comportaban en 2012 el 87,2% del gasto total en I+D+i (Investigación, Desarrollo e innovación). Con un 5% del agregado de financiación investigadora, la aportación privada de las empresas españolas era raquítica en comparación con otros países equiparables de la UE. El resto del dinero para la investigación procedía de fuentes foráneas a las españolas.
De nehéz az iskolatáska..._Az óvoda-iskola átmenet megsegítése_Kérdőív Óvodapedagógusoknak
Creators: name: Takácsné Szabó Melinda
Publisher: name: Zenodo
Year: 2023

description: A Károli Gáspár Református Egyetem Neveléstudomány MA szakos hallgatójaként az eredményes óvoda-iskola átmenet elősegítésével kapcsolatosan szeretnék adatokat gyűjteni diplomamunkámhoz.
Brexit anglocentrista
Creators: name: Moreno, Luis
Publisher: name: Digital.CSIC
Year: 2016
Subjects: Brexit
Anglocentrismo
política europea
Reino Unido

description: El resultado fue inesperado. En las tertulias y programas informativos durante el día de la votación existía la convicción que el Bremain superaría al Brexit. Todos los sondeos de última hora confirmaban, si bien por un estrecho margen, la ventaja de los partidarios de quedarse en la Unión Europea. Las grandes cadenas televisivas británicas habían anunciado que no se realizarían encuestas a la salida de los colegios electorales (exit polls) para evitar errores en las proyecciones de lo manifestado por los votantes entrevistados. Así sucedió con motivo del referéndum por la independencia de Escocia, el 18 de septiembre de 2014, donde tampoco se realizaron las conocidas como encuestas israelitas o a pie de urna. De consecuencia, no fueron pocos los ciudadanos en las islas británicas y el resto de Europa que se fueron a la cama ‘persuadidos’ que prevalecería el Bremain, según habían aventurado los sondeos previos y las subidas bursátiles. El resultado final se confirmó hacia las 6 de la mañana del día siguiente: el Brexit había ganado con un 52% de los votos.
title: Μέταλλα στρατηγικής σημασίας στην ερυθρά iλύ. Διερεύνηση της κατανομής li, ce, la με μεθόδους εμπλουτισμού
Creators: name: Ζαγα Αλεξανδρα
Publisher: name: Technical University of Crete
Year: 2023

description: Στο πλαίσιο της κυκλικής οικονομίας υπάρχει έντονο επιστημονικό ενδιαφέρον για τεχνολογίες που στοχεύουν στην ανάκτηση μετάλλων στρατηγικής σημασίας από απόβλητα και παραπροϊόντα. Προκειμένου να σχεδιαστούν αποτελεσματικές διεργασίες ανάκτησης, απαιτείται λεπτομερής και σε βάθος γνώση του τρόπου εμφάνισης των μετάλλων στα υλικά αυτά. Στην παρούσα διπλωματική εργασία έγινε διερεύνηση της κατανομής μετάλλων στρατηγικής σημασίας στην ερυθρά ιλύ, από την εταιρεία “Αλουμίνιον της Ελλάδος” με μεθόδους εμπλουτισμού. Τα μέταλλα που μελετήθηκαν ήταν το δημήτριο και το λανθάνιο (ως αντιπροσωπευτικά των ελαφρών σπάνιων γαιών) και το λίθιο. Εφαρμόστηκαν δύο μέθοδοι εμπλουτισμού (μαγνητικός και τριβοηλεκτροστατικός). Στο αρχικό δείγμα της ερυθράς ιλύος και στα προϊόντα που προέκυψαν από τους διαχωρισμούς έγινε ποσοτικός προσδιορισμός των μετάλλων με φασματομετρία μάζας επαγωγικά συζευγμένου πλάσματος (ΙCP-MS) και προσδιορισμός της ορυκτολογικής τους σύστασης με (XRD).Τα αποτελέσματα έδειξαν ότι τα στοιχεία La, Ce και Li εμφανίζονται με συγκεντρώσεις 71, 291, 100 mg/kg αντίστοιχα. Από τις δοκιμές εμπλουτισμού τα υπό μελέτη μέταλλα φάνηκε να εμπλουτίζονται σε συγκεκριμένα προϊόντα με βαθμό εμπλουτισμού μέχρι 1,2.
A simplified approach to generating synthetic data for disclosure control
Creators: name: Raab, Gillian
name: Nowok, Beata
name: Dibben, Chris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We describe results on the creation and use of synthetic data that were derived in the context of a project to make synthetic extracts available for users of the UK Longitudinal Studies. A critical review of existing methods of inference from large synthetic data sets is presented. We introduce new variance estimates for use with large samples of completely synthesised data that do not require them to be generated from the posterior predictive distribution derived from the observed data. We make recommendations on how to synthesise data based on these findings. An example of synthesising data from the Scottish Longitudinal Study is included to illustrate our results.
description: This version has minor clarifications of the derivations in section 2
title: The status-quo of companies' data privacy and security communication: An ethical evaluation and future paths
Creators: name: Carl, K. Valerie
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: data privacy||data security||company communication||best practices||communication guidelines||Corporate Digital Responsibility.

description: Advancing digital technologies and the omnipresent digitalization bear chances but also threats for companies and consumers. Especially data privacy and security risks remain one key concern of consumers. However, fulfilling legally binding requirements is not sufficient anymore for many consumers. Instead, consumers expect companies to behave ethically responsible and voluntarily assume more responsibilities in the digital context, particularly related to data privacy and security. Broader approaches, like the emerging concept of Corporate Digital Responsibility, make it possible to see responsibility with regard to data privacy and security in the broader context of a company’s digital responsibilities and thus to develop a more holistic understanding. However, responsible behavior alone is not enough; rather an adequate communication is the evaluation basis of consumers. Accordingly, this work-in-progress evaluates current corporate communication regarding data privacy and security from an ethical view, thus illustrating best practices and paving future paths for corporate communication.
Suppliers Network Optimization Model for fruit  dealers in Namibia Context (Concept of multiple  trip and split delivery with time constraints)
Creators: name: Shuuya, Selma Magano
name: Manuel, Julio Pedro
name: Chancel, Penka Zefack Nkenfouet
Publisher: name: NAAR
Year: 2023

description: This paper attempts to discuss Supply Chain Network Optimization in the context of multiple and split delivery vehicle routing problems. There is a likelihood of efficient supply chains to minimize costs as well as improve reliance on what would be called shared networks (demands and agents). Ancient optimization models have limitations in adopting the concept of a multi-depot and split delivery. As such, this writeup elaborates more on the supply chain network optimization model: Multi-Split delivery vehicle routing problem, commonly abbreviated MDSDVRP. This model factors in different constraints in the objective function i.e. multi depot, split delivery, and timed constraints. The resultant function minimizes the supply chain's delivery times, operations, and several vehicles and, increases customer satisfaction.
¿Brexit y Scotin?
Creators: name: Moreno, Luis
Publisher: name: Digital.CSIC
Year: 2016
Subjects: Brexit
Reino Unido
Escocia
Unión Europea

description: A pocos días de la celebración en el Reino Unido del referéndum sobre la Unión Europea, el resultado del mismo aparece incierto. Los sondeos no indican una clara ventaja ni de los partidarios por irse ni de los favorables por quedarse en la UE. A la hora de redactar estas líneas, las últimas proyecciones indicarían un voto marginalmente favorable al ‘exit’ en Inglaterra, aunque el mayor apoyo a permanecer en el club europeo en las otras naciones componentes del Reino Unido (Escocia, Irlanda del Norte y País de Gales), haría que la balanza se inclinase muy levemente a la continuidad británica en las instituciones comunitarias. Todo incierto y hasta cabalístico. La Tabla 1 muestra el mayor peso poblacional de Inglaterra en el conjunto británico (84% del total). Según los sondeos, prevalece allí una pequeña predisposición a abandonar la UE. En Escocia, los encuestados eurófilos alcanzan casi los dos tercios de los residentes en la antigua Caledonia. Pero debe tenerse en cuenta que su peso demográfico en el Reino Unido apenas sobrepasa el 8% del total británico. No es de extrañar que, tradicionalmente, tal disparidad poblacional haya alimentado la sinonimia entre los gentilicios de Inglaterra y Reino Unido.
Cataluña y el camino esloveno a la secesión
Creators: name: Moreno, Luis
name: Conversi, Daniele
Publisher: name: Digital.CSIC
Year: 2018
Subjects: Cataluna
Eslovenia
secesión

description: Hace unos días, el presidente de la Generalitat, Quim Torra, habló de una «vía eslovena hacia la independencia» de Cataluña. Más allá de que sea viable, conviene repasar los hechos que rodearon al proceso esloveno y sus efectos colaterales durante el período de desmembración yugoslava (1991-1999). Eslovenia fue el primero de los países que se separaron de Yugoslavia. Ello concatenó las declaraciones de independencia -una tras otra- de todas las repúblicas y un territorio autónomo, Kosovo, que formaban parte de la República Democrática Federal de Yugoslavia. Ésta fue constituida en primera instancia al final de la Segunda Guerra Mundial, y estuvo bajo conducción política y mando militar del mariscal Tito de 1953 a 1980. La declaración de independencia eslovena de junio de 1991 no fue pacífica. Provocó una reacción inmediata del Ejército yugoslavo y causó más de 70 muertos en la propia Eslovenia (la llamada Guerra de los Diez Días).
СОЦИАЛЬНО-КУЛЬТУРНОЕ ЗНАЧЕНИЕ КАРАКАЛПАКСКОГО КИНОМАТОГРАФА
Creators: name: Мамбетниязов, Даулетьяр
Publisher: name: Zenodo
Year: 2024

description: Каракалпакское кино играет важную роль в сохранении культурного наследия и идентичности народа Каракалпакстана. В этой статье рассмотрим исключительное значение каракалпакского кино для культуры и идентичности народа, а также его влияние на общество. Введение этой темы позволит провести анализ и изучение важных аспектов культурного значения кино в современном мире.
Further evidence for asymptotic safety of quantum gravity
Creators: name: Falls, Kevin
name: Litim, Daniel F.
name: Nikolakopoulos, Konstantinos
name: Rahmede, Christoph
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The asymptotic safety conjecture is examined for quantum gravity in four dimensions. Using the renormalisation group, we find evidence for an interacting UV fixed point for polynomial actions up to the 34th power in the Ricci scalar. The extrapolation to infinite polynomial order is given, and the self-consistency of the fixed point is established using a bootstrap test. All details of our analysis are provided. We also clarify further aspects such as stability, convergence, the role of boundary conditions, and a partial degeneracy of eigenvalues. Within this setting we find strong support for the conjecture.
description: 44 pages, 17 figures, explanations and Sec VII D added; to appear (PRD)
Rescaling limits of the spatial Lambda-Fleming-Viot process with selection
Creators: name: Etheridge, Alison
name: Veber, Amandine
name: Yu, Feng
Publisher: name: arXiv
Year: 2014
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: Primary: 60G57, 60J25, 92D10, Secondary: 60J75, 60G52

description: We consider the spatial Lambda-Fleming-Viot process model for frequencies of genetic types in a population living in R^d, with two types of individuals (0 and 1) and natural selection favouring individuals of type 1. We first prove that the model is well-defined and provide a measure-valued dual process encoding the locations of the `potential ancestors' of a sample taken from such a population. We then consider two cases, one in which the dynamics of the process are driven by events of bounded radii and one incorporating large-scale events whose radii have a polynomial tail distribution. In both cases, we consider a sequence of spatial Lambda-Fleming-Viot processes indexed by n, and we assume that the fraction of individuals replaced during a reproduction event and the relative frequency of events during which natural selection acts tend to 0 as n tends to infinity. We choose the decay of these parameters in such a way that when reproduction is only local, the measure-valued process describing the local frequencies of the less favoured type converges in distribution to a (measure-valued) solution to the stochastic Fisher-KPP equation in one dimension, and to a (measure-valued) solution to the deterministic Fisher-KPP equation in more than one dimension. When large-scale extinction-recolonisation events occur, the sequence of processes converges instead to the solution to the analogous equation in which the Laplacian is replaced by a fractional Laplacian. We also consider the process of `potential ancestors' of a sample of individuals taken from these populations, which we see as a system of branching and coalescing symmetric jump processes. We show their convergence in distribution towards a system of Brownian or stable motions which branch at some finite rate. In one dimension, in the limit, pairs of particles also coalesce at a rate proportional to their collision local time.
description: 97 pages
title: Mobilitätswende @ Lebensqualität (MobiLe) – Die Entwicklung eines qualitativen Modells zur Vermittlung wichtiger Wirkungszusammenhänge im komplexen System Verkehr
Creators: name: Brüning, Herbert
name: Marx Gómez, Jorge
name: Papke, Alexander
name: Kokkarachedu, Sreedhar
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Stadtentwicklung||webbasiertes Planungstool||kommunale Verkehrssysteme||kybernetisches Modell||Mobilitätswende

description: Das Forschungsvorhaben MobiLe zielt darauf ab, eine neuartige Entscheidungshilfe für verkehrsbezogene Entscheidungen zur Verfügung zu stellen, die das Verkehrssystem, zusammen mit weiteren Aspekten einer qualitativen, auf Nachhaltigkeit zielenden Stadtentwicklung in ihrem systemischen Zusammenspiel betrachtet. Dabei wird ein webbasiertes Planungstool entwickelt, das mit einer leicht nutzbaren Software die Kommunalpolitiker*innen in die Lage versetzt, die Komplexität und Interdependenzen des kommunalen Verkehrssystems besser zu verstehen und zu berücksichtigen. Dies ermöglicht es den Kommunalpolitiker*innen, die komplexen Auswirkungen verkehrswirksamer Entscheidungen eigenständig und frühzeitig abzuschätzen.
Crisis inacabada, ¿quién control al robot?
Creators: name: Moreno, Luis
name: Jiménez, Raúl
Publisher: name: Digital.CSIC
Year: 2020
Subjects: Robots
control informático
encriptación

description: La robotización de nuestras democracias es imparable e irreversible. ¿Puede dudarse…? En una serie de artículos que iniciamos tras la publicación de nuestro ensayo ‘Democracias Robotizadas’, hemos analizado la importancia que conlleva, en tiempos de crisis, robotizar cabalmente nuestras sociedades. Las críticas que se nos han planteado pueden agruparse en dos categorías diferenciadas: a) argumentar que la robotización es inútil, ya que no ha servido efectivamente para evitar la pandemia actual, y b) robotización, sí, pero ¿quién controla al robot? O parafraseando la célebre aporía‘¿Quis custodiet ipsos custodes?’, ¿quién vigilará a los vigilantes? Y es que, en esta segunda aproximación, al estar el robot (computador) programado por los humanos, siempre emerge la tensión entre democracia y autocracia. La derivación final de ambas críticas es que es la robotización puede ser inútil, si no maléfica. Nada tan lejos de la realidad.
title: Making Remote Work for Women in Tech
Creators: name: Marsden, Nicola
name: Holtzblatt, Karen
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: gender||remote work||retention

description: Remote working during the pandemic goes far beyond the global remote work that occurred in prior years. In this paper, we look at remote working from the point of view of creating the experiences women need to thrive. Within the context of our research on retaining women in tech, we have studied the impact of remote work on women. We reveal our findings and indicate how to improve the experience of tech women in remote work.
Organisk gjødsel, gjødselplanlegging og næringsbalanser. Forelesningsnotater i jordøkologi (versjon 1)
Creators: name: Solberg, Svein Øivind
Publisher: name: Zenodo
Year: 2023
Subjects: Soil ecology, Fertilization, Nutrient balance, Planning

description: A lecture note in Norwegian for students in soil ecology.
title: Designing a Data Sharing Tool Kit - Showing companies how to start using Data Sharing
Creators: name: Jussen, Ilka
name: Schweihoff, Julia Christina
name: Stachon, Maleen
name: Möller, Frederik
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Data Sharing||Visual Inquiry Tools||Canvas Development||Design Science Research

description: Sharing data is essential to the success of modern data-driven business models. They play a crucial role for companies in creating new and better services and optimizing existing processes. While the interest in data sharing is growing, companies face an array of challenges preventing them from fully exploiting data sharing opportunities. Mitigating these risks and weighing them against their potential is a creative, interdisciplinary task in each company. The paper starts precisely at this point and proposes a Tool Kit with three Visual Inquiry Tool (VIT) to work on finding data sharing potential conjointly. We do this using a design-oriented research approach and contribute to research and practice by providing three VITs that help different stakeholders or companies in an ecosystem to visualize and design their data-sharing activities.
Las edades del welfare
Creators: name: Morerno, Luis
Publisher: name: Digital.CSIC
Year: 2015
Subjects: Estado del Bienestar
welfare
políticas sociales

description: Durante la segunda mitad del siglo XX, y con altos grados de legitimidad, el Estado del Bienestar (EB) hizo posible la aspiración ciudadana por la mejora de las condiciones de vida en la Europa occidental. Cabe establecer, en retrospectiva, que a los treinte gloreuses , o período de la Edad de Oro del capitalismo del bienestar europeo (1945- 1975), le sucedió una Edad de Plata (1976-2007) que mantuvo una encomiable resiliencia ante los persistentes ajustes para contener los gastos sociales y en evitación de retrocesos de las políticas del bienestar. Tras el crack económico de 2007, la cuestión a ponderar es si la presente Edad de Bronce del welfare (2008- ¿?) podrá mantener los rasgos constitutivos del bienestar social consolidados en la segunda mitad del siglo XX.
title: Scalable backend representation of security posture of IIoT systems
Creators: name: Kreho, Edin
name: Djeukoua, Roger
name: Guiraud, Timothée
name: Waedt, Karl
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Cybersecurity||Industrial Automation and Control System||Industrial Internet Of things||Concurrent cybersecurity Modelling||Primary Assets||Supporting Assets||Sdocument-oriented database

description: The focus of this paper is the scalable modelling and database representation of cybersecurity postures as part of a framework for modelling of security artefacts. A cybersecurity posture describes the current state of protection of a system. During the lifecycle phases of a power plant or manufacturing facility this includes the semi-formal database representation of all components and subsystems of automation equipment, the controlled aggregates, the related sensors and the applied security controls. The type of database choice is discussed based on the need to serve as web backend server and scalable multi-user use. The frontend part of a comprehensive security artefacts modelling framework is not in the focus of this paper. One focus will be on the modelling related to network security artefacts as supporting assets. This will include all network devices and network endpoints with segregations between networks by physically unidirectional security gateways and firewalls. The primary assets (that are controlled or monitored) will be selected and can include pumps, pressurizers, valves, motors, circuit breakers and similar. The important part of the modelling is to be able to represent the potential attack vectors via supporting assets up to the primary assets that may potentially be destroyed or degraded by an attack. An important aspect of the data modeling is the security grading, as present in industrial environments, but not covered by the common IT security standards (like ISO/IEC 2700x). The current state of the art of tools and frameworks that cover a part of the intended data modelling will be outlined. The backend of a document based (e.g. MongoDB) database for modelling the relations will be presented in more detail. The backend semi-formal representation takes into account the semi-formal approach of structuring of the supporting assets, structuring of primary assets, linking between assets and association of Application Security Controls in the sense of ISO/IEC 27034-5 and ISO/IEC 27034-5-1 (for XML/JSON representation) to supporting assets.[ IS17] [IS18] A web framework will be used to interact with the backend data representation. Approaches to compare different revisions of a security posture will be outlined. This will help in planning and regularly monitoring the progress of a security posture, e.g. with regard to security audit preparations.
Probing the weak mixing angle at high energies at the LHC and HL-LHC
Creators: name: Amoroso, Simone
name: Chiesa, Mauro
name: Del Pio, Clara Lavinia
name: Lipka, Katerina
name: Piccinini, Fulvio
name: Vazzoler, Federico
name: Vicini, Alessandro
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: electroweak interaction, mixing angle
dilepton, mass
electroweak interaction, radiative correction
CERN LHC Coll, upgrade
energy, high
higher-order, 1
p p, scattering
TeV
Drell-Yan process
renormalization
Weinberg angle
neutral current
scale dependence

description: Measurements of neutral current Drell-Yan production at large invariant dilepton masses can be used to test the energy scale dependence (running) of the electroweak mixing angle. In this work, we make use of a novel implementation of the full next-to-leading order electroweak radiative corrections to the Drell-Yan process using the $\overline{\mathrm{MS}}$ renormalization scheme for the electroweak mixing angle. The potential of future analyses using proton-proton collisions at $\sqrt{s}=13.6~\mathrm{TeV}$ in the Run 3 and High-Luminosity phases of the LHC is explored. In this way, the Standard Model predictions for the $\overline{\mathrm{MS}}$ running at $\mathrm{TeV}$ scales can be probed.
La Universidad: Remota y Presencial
Creators: name: Moreno, Luis
name: Jiménez, Raúl
Publisher: name: Digital.CSIC
Year: 2019
Subjects: Universidad
Docencia
clases presenciales
educación telemática

description: Cuando acabe el largo confinamiento domiciliario por la pandemia de la Covid-19, se vaticina el retorno a una nueva normalidad. En lo relativo a la educación universitaria, ¿será una vuelta a la vieja normalidad presencial o un reforzamiento de la nueva normalidad virtual? En realidad, la instrucción universitaria a distancia no es algo novedoso. Ya se ha venido realizando desde mediados del siglo pasado. La Open University británica y la Universidad nacional de Educación a Distancia (Uned) española fueron pioneras en desarrollar un sistema efectivo de educación superior capaz de ofrecer una instrucción equivalente al de las universidades presenciales, así como de otorgar títulos de igual rango universitario. Nuestra Uned es un ejemplo notable de educación superior no presencial. No se trata de una universidad abierta, como la Open University, ya que se requieren estrictos requisitos de entrada, como en las otras universidades presenciales españolas. La mayoría de la instrucción en la Uned es a distancia y facilita la obtención de grados universitarios a alumnos que, por razones de lejanía o incompatibilidad de horarios, no puedan acudir a cursos presenciales.
title: Implementations for Shor's algorithm for the DLP
Creators: name: Mandl, Alexander
name: Egly, Uwe
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: quantum computing||discrete logarithm||implementation||Shor's algorithm

description: Shor's algorithm for solving the discrete logarithm problem is one of the most celebrated works in quantum computing. It builds upon a quantum circuit performing modular exponentiation. As this is a comparatively expensive process, many approaches for reducing both the number of used qubits and the number of applied gate operations have been proposed. We provide quantum circuits in Qiskit for three different implementation proposals aiming to reduce space complexity and compare their performance regarding their asymptotic gate complexity. We make use of the circuit implementations and Qiskit’s simulation capabilities to compare the actual number of applied gate operations in compiled circuits for small problem instances to aid future applications of this algorithm.
title: Learning without Looking: Similarity Preserving Hashing and Its Potential for Machine Learning in Privacy Critical Domains
Creators: name: Eleks, Marian
name: Rebstadt, Jonas
name: Fukas, Philipp
name: Thomas, Oliver
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Data Anonymization||Similarity Preserving Hashing||Machine Learning||Fuzzy Hashing||Privacy Aware Machine Learning

description: Machine Learning is frequently ranked as one of the most promising technologies in several application domains but falls short when the data necessary for training is privacy-sensitive and can thus not be used. We address this problem by extending the field of Privacy Aware Machine Learning with the application of Similarity Preserving Hashing algorithms to the task of data anonymization in a Design Science Research approach. In this endeavor, novel anonymization algorithms made to enable Machine Learning on anonymized data are designed, implemented, and evaluated. Throughout the Design Science Research process, we present a collection of issues and requirements for Privacy Aware Machine Learning algorithms along with three Similarity Preserving Hashing-based algorithms to fulfil them. A metric-based comparison of established and novel algorithms as well as new arising opportunities for Machine Learning on sensitive data are also added to the current knowledge base of Information Systems research.
Angular momentum balance in gravitational two-body scattering: Flux, memory, and supertranslation invariance
Creators: name: Riva, Massimiliano Maria
name: Vernizzi, Filippo
name: Wong, Leong Khim
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: gravitation, fundamental constant
angular momentum
flux
binary
field theory
scattering
resolution

description: Two puzzles continue to plague our understanding of angular momentum balance in the context of gravitational two-body scattering. First, because the standard definition of the Bondi angular momentum $J$ is subject to a supertranslation ambiguity, it has been shown that when the corresponding flux $F_J$ is expanded in powers of Newton's constant $G$, it can start at either $O(G^2)$ or $O(G^3)$ depending on the choice of frame. This naturally raises the question as to whether the $O(G^2)$ part of the flux is physically meaningful. The second puzzle concerns a set of new methods for computing the flux that were recently developed using quantum field theory. Somewhat surprisingly, it was found that they generally do not agree with the standard formula for $F_J$, except in the binary's center-of-mass frame. In this paper, we show that the resolution to both of these puzzles lies in the careful interpretation of $J$: Generically, the Bondi angular momentum $J$ is \emph{not} equal to the mechanical angular momentum $\mathcal{J}$ of the binary, which is the actual quantity of interest. Rather, it is the sum of $\mathcal{J}$ and an extra piece involving the shear of the gravitational field. By separating these two contributions, we obtain a new balance law, accurate to all orders in $G$, that equates the total loss in mechanical angular momentum $\Delta_\mathcal{J}$ to the sum of a flux term, which always starts at $O(G^3)$, and a memory term, which always starts at $O(G^2)$. We show that each of these terms is invariant under supertranslations, and we find that $\Delta_\mathcal{J}$ matches the result from quantum field theory at least up to $O(G^2)$ in all Bondi frames. The connection between our results and other proposals for supertranslation-invariant definitions of the angular momentum is also discussed.
Emergent $\mathcal{N}=4$ supersymmetry from $\mathcal{N}=1$
Creators: name: Kang, Monica Jinwoo
name: Lawrie, Craig
name: Lee, Ki-Hong
name: Song, Jaewon
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: field theory, conformal
dimension, 4
gauge field theory, Yang-Mills
space, conformal
supersymmetry, 4
symmetry, flavor
duality
infrared
flow
central charge

description: We discover a four-dimensional $\mathcal{N}=1$ supersymmetric field theory that is dual to the $\mathcal{N}=4$ super Yang-Mills theory with gauge group $SU(2n+1)$ for each $n$. The dual theory is constructed through the diagonal gauging of the $SU(2n+1)$ flavor symmetry of three copies of a strongly-coupled superconformal field theory (SCFT) of Argyres-Douglas type. We find that this theory flows in the infrared to a strongly-coupled $\mathcal{N}=1$ SCFT that lies on the same conformal manifold as $\mathcal{N}=4$ super Yang-Mills with gauge group $SU(2n+1)$. Our construction provides a hint on why certain $\mathcal{N}=1,2$ SCFTs have identical central charges ($a=c$).
A New Family of Regularized Kernels for the Harmonic Oscillator
Creators: name: Ong, Benjamin
name: Christlieb, Andrew
name: Quaife, Bryan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, a new two-parameter family of regularized kernels is introduced, suitable for applying high-order time stepping to N-body systems. These high-order kernels are derived by truncating a Taylor expansion of the non-regularized kernel about $(r^2+ε^2)$, generating a sequence of increasingly more accurate kernels. This paper proves the validity of this two-parameter family of regularized kernels, constructs error estimates, and illustrates the benefits of using high-order kernels through numerical experiments.
description: 27 pages, 15 figures
title: Interaktive Steuerung der Ausführung von KI-Algorithmen in Umweltinformationssystemen über OGC SensorThings
Creators: name: Emde, Katharina
name: Budde, Matthias
name: Fischer, Thilo
name: Martin, Tobias
name: Hilbring, Desiree
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Umweltinformationssysteme||Künstliche Intelligenz||Entscheidungsunterstützung||Benutzerfreundlichkeit

description: Algorithmen der künstlichen Intelligenz (KI) werden über ein weites Spektrum an Domänen zur Entscheidungsunterstützung eingesetzt. Sollen KI-Algorithmen dabei von Fachanwender:innen -- die üblicherweise Domänenexpert:innen, oft aber auch IT-Laien sind -- wiederkehrend ausgeführt werden, ist ein geeignetes Interaktionskonzept zur Parametrisierung und Steuerung notwendig. Diese Arbeit beschäftigt sich mit der Fragestellung, anhand welcher Kriterien eine dafür geeignete Plattform entwickelt werden muss. Eine Anforderungsanalyse sowie das sich daraus ergebende technische Umsetzungskonzept werden konkret am Beispiel des Umweltinformationssystems „Nitrat-Monitoring 4.0 (NiMo)“ vorgestellt.
Controlled HHG with a Sub-Cycle mJ-Level Parametric Waveform Synthesizer
Creators: name: Mainz, Roland
name: Yang, Yudong
name: Rossi, Giulio Maria
name: Scheiba, Fabian
name: Cirmi, Giovanni
name: Kärtner, Franz
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2018

description: CLEO Pacific Rim, CLEO-PR, Hong Kong, China, 29 Jul 2018 - 3 Aug 2018
description: We present high-harmonic generation (HHG) driven with a sub-cycle mJ-levelparametric waveform synthesizer. The HHG yield and spectral shape can be controlled byvarying the carrier-envelope phase and the relative phase in the synthesizer channels.
Stochastic transport equation in bounded domains
Creators: name: Neves, Wladimir
name: Olivera, Christian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics

description: This paper is concerned with the initial-boundary value problem \; for stochastic transport equations in bounded domains. For a given stochastic perturbation of the drift vector field, we prove existence and uniqueness of weak solutions with non-regular coefficients. The existence of weak solutions relies strongly on the existence of strong stochastic trace, and also on the passage from the Stratonovich into Itô's formulation for bounded domains.Moreover, the uniqueness of weak solutions is obtained under suitable conditions.
description: We introduced several changes with respect to the first version
title: Wirtschaftsinformatik an Hochschulen Angewandter Wissenschaften
Creators: name: Czarnecki, Christian
name: Meister, Vera G.
name: Majuntke, Verena
Publisher: name: Gesellschaft für Informatik, Bonn
Year: 2022
Subjects: subject: Wirtschaftsinformatik||Hochschulen Angewandter Wissenschaften||anwendungsorientierte Forschung

description: Der Workshop Wirtschaftsinformatik (WI) an Hochschulen Angewandter Wissen-schaften (HAW) wird in Kooperation mit dem Arbeitskreis WI an HAW (AKWI) organisiert. Der AKWI ist der Dachverband der Fachbereiche mit deutschsprachigen WI-Studiengängen und/oder -Studienschwerpunkten an HAW. Er versteht sich als fachkompetenter und hochschulpolitischer Ansprechpartner zu Themen des Studiums der WI an HAW sowie der WI als anwendungs¬bezogene Wissenschaft. Der AKWI ist als Arbeitskreis des Fachbereichstags Informatik und zugleich als Fachgruppe WI-AKWI der Gesellschaft für Informatik (GI) organisiert (siehe www.akwi.de).
Mediterráneo, mal nuestro
Creators: name: Moreno, Luis
name: Conversi, Daniele
Publisher: name: Digital.CSIC
Year: 2019
Subjects: transición energética
Mediterráneo
contaminación
degradación ambiental

description: Aludían los víejos romanos al Mare Nostrum como referente geográfico de su acción económica, política y socíal. En realídad, el Mediterráneo ya se había convertido en el basamento fundacional de los actuales valores civílizatorios del hemisferio occidental. Ahora el Mare Nostrum es escenario de un proceso convulso de deterioro ambiental y testigo de un gran drama humano. Considérese la pronunciada disminución de las precipitaciones y la ausencia de lluvia en algunas zonas, especialmente durante el período estival. Yello es precisamente así porque la variabilidad interanual aumenta dramáticamente durante el verano, cuando se alcanzan temperaturas cada vez más extremas. Los ominosos síntomas se multiplican y el cambio climático los hará cada vez más vulnerables, con un impacto brutal en los recursos hídricos de la cuenca mediterránea; ya se manifiestan en nuestro 'pequeño océano' con la transformación de las faunas marinas y el aumento de especies invasivas.
Stochastic stability of Pollicott-Ruelle resonances
Creators: name: Dyatlov, Semyon
name: Zworski, Maciej
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Analysis of PDEs (math.AP)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics

description: Pollicott-Ruelle resonances for chaotic flows are the characteristic frequencies of correlations. They are typically defined as eigenvalues of the generator of the flow acting on specially designed functional spaces. We show that these resonances can be computed as viscosity limits of eigenvalues of second order elliptic operators. These eigenvalues are the characteristic frequencies of correlations for a stochastically perturbed flow.
description: 26 pages, 6 figures. Added several negative examples at the end of the introduction