cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generalized covariant gyrokinetic dynamics of magnetoplasmas
Creators: name: Cremaschini, C.
name: Tessarotto, M.
name: Nicolini, P.
name: Beklemishev, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: A basic prerequisite for the investigation of relativistic astrophysical magnetoplasmas, occurring typically in the vicinity of massive stellar objects (black holes, neutron stars, active galactic nuclei, etc.), is the accurate description of single-particle covariant dynamics, based on gyrokinetic theory (Beklemishev et al.,1999-2005). Provided radiation-reaction effects are negligible, this is usually based on the assumption that both the space-time metric and the EM fields (in particular the magnetic field) are suitably prescribed and are considered independent of single-particle dynamics, while allowing for the possible presence of gravitational/EM perturbations driven by plasma collective interactions which may naturally arise in such systems. The purpose of this work is the formulation of a generalized gyrokinetic theory based on the synchronous variational principle recently pointed out (Tessarotto et al., 2007) which permits to satisfy exactly the physical realizability condition for the four-velocity. The theory here developed includes the treatment of nonlinear perturbations (gravitational and/or EM) characterized locally, i.e., in the rest frame of a test particle, by short wavelength and high frequency. Basic feature of the approach is to ensure the validity of the theory both for large and vanishing parallel electric field. It is shown that the correct treatment of EM perturbations occurring in the presence of an intense background magnetic field generally implies the appearance of appropriate four-velocity corrections, which are essential for the description of single-particle gyrokinetic dynamics.
description: Contributed paper at RGD26 (Kyoto, Japan, July 2008)
Ferromagnetic quantum critical point in a locally noncentrosymmetric and nonsymmorphic Kondo metal
Creators: name: Shin, Soohyeon
name: Ramires, Aline
name: Pomjakushin, Vladimir
name: Plokhikh, Igor
name: Pomjakushina, Ekaterina
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quantum critical points (QCPs), zero-temperature phase transitions, are windows to fundamental quantum-mechanical phenomena associated with universal behaviour and can provide parallels to the physics of black holes. Magnetic QCPs have been extensively investigated in the vicinity of antiferromagnetic order. However, QCPs are rare in metallic ferromagnets due to the coupling of the order parameter to electronic soft modes [1,2]. Recently, antisymmetric spin-orbit coupling in noncentrosymmetric systems was suggested to protect ferromagnetic QCPs [3]. Nonetheless, multiple centrosymmetric materials host FM QCPs, suggesting a more general mechanism behind their protection. In this context, CeSi$_{2-δ}$, a dense Kondo lattice crystallising in a centrosymmetric structure, exhibits ferromagnetic order when Si is replaced with Ag. We report that the Ag-substitution controls the strength of the Kondo coupling, leading to a transition between paramagnetic and ferromagnetic Kondo phases. Remarkably, a ferromagnetic QCP accompanied by concurrent strange-metal behaviour emerges. Herein, we suggest that, despite the centrosymmetric structure, spin-orbit coupling arising from the local noncentrosymmetric structure, in combination with nonsymmorphic symmetry, can protect ferromagnetic QCPs. Our findings present a unique example of Kondo coupling-driven ferromagnetic QCP through chemical doping and offer a general guideline for discovering new ferromagnetic QCPs.
description: Main text with 3 figures and 1 table, and supplementary information
Ultra-high energy cosmic rays threshold in Randers-Finsler space
Creators: name: Chang, Zhe
name: Li, Xin
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Kinematics in Finsler space is used to study the propagation of ultra high energy cosmic rays particles through the cosmic microwave background radiation. We find that the GZK threshold is lifted dramatically in Randers-Finsler space. A tiny deformation of spacetime from Minkowskian to Finslerian allows more ultra-high energy cosmic rays particles arrive at the earth. It is suggested that the lower bound of particle mass is related with the negative second invariant speed in Randers-Finsler space.
Open source disease analysis system of cactus by artificial intelligence and image processing
Creators: name: Kaweesinsakul, Kanlayanee
name: Nuchitprasitchai, Siranee
name: Pearce, Joshua M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: There is a growing interest in cactus cultivation because of numerous cacti uses from houseplants to food and medicinal applications. Various diseases impact the growth of cacti. To develop an automated model for the analysis of cactus disease and to be able to quickly treat and prevent damage to the cactus. The Faster R-CNN and YOLO algorithm technique were used to analyze cactus diseases automatically distributed into six groups: 1) anthracnose, 2) canker, 3) lack of care, 4) aphid, 5) rusts and 6) normal group. Based on the experimental results the YOLOv5 algorithm was found to be more effective at detecting and identifying cactus disease than the Faster R-CNN algorithm. Data training and testing with YOLOv5S model resulted in a precision of 89.7% and an accuracy (recall) of 98.5%, which is effective enough for further use in a number of applications in cactus cultivation. Overall the YOLOv5 algorithm had a test time per image of only 26 milliseconds. Therefore, the YOLOv5 algorithm was found to suitable for mobile applications and this model could be further developed into a program for analyzing cactus disease.
description: Preprint for IAIT2021
Detecting and Mitigating System-Level Anomalies of Vision-Based Controllers
Creators: name: Gupta, Aryaman
name: Chakraborty, Kaustav
name: Bansal, Somil
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Autonomous systems, such as self-driving cars and drones, have made significant strides in recent years by leveraging visual inputs and machine learning for decision-making and control. Despite their impressive performance, these vision-based controllers can make erroneous predictions when faced with novel or out-of-distribution inputs. Such errors can cascade to catastrophic system failures and compromise system safety. In this work, we introduce a run-time anomaly monitor to detect and mitigate such closed-loop, system-level failures. Specifically, we leverage a reachability-based framework to stress-test the vision-based controller offline and mine its system-level failures. This data is then used to train a classifier that is leveraged online to flag inputs that might cause system breakdowns. The anomaly detector highlights issues that transcend individual modules and pertain to the safety of the overall system. We also design a fallback controller that robustly handles these detected anomalies to preserve system safety. We validate the proposed approach on an autonomous aircraft taxiing system that uses a vision-based controller for taxiing. Our results show the efficacy of the proposed approach in identifying and handling system-level anomalies, outperforming methods such as prediction error-based detection, and ensembling, thereby enhancing the overall safety and robustness of autonomous systems.
IKT approach for quantum hydrodynamic equations
Creators: name: Tessarotto, M.
name: Ellero, M.
name: Nicolini, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: A striking feature of standard quantum mechanics is its analogy with classical fluid dynamics. In particular it is well known the Schrödinger equation can be viewed as describing a classical compressible and non-viscous fluid, described by two (quantum) fluid fields ${ρ,% \mathbf{V}} $, to be identified with the quantum probability density and velocity field. This feature has suggested the construction of a phase-space hidden-variable description based on a suitable inverse kinetic theory (IKT; Tessarotto et al., 2007). The discovery of this approach has potentially important consequences since it permits to identify the classical dynamical system which advances in time the quantum fluid fields. This type of approach, however requires the identification of additional fluid fields. These can be generally identified with suitable directional fluid temperatures $T_{QM,i}$ (for $i=1,2,3$), to be related to the expectation values of momentum fluctuations appearing in the Heisenberg inequalities. Nevertheless the definition given previously for them (Tessarotto et al., 2007) is non-unique. In this paper we intend to propose a criterion, based on the validity of a constant H-theorem, which provides an unique definition for the quantum temperatures.
description: Contributed paper at RGD26 (Kyoto, Japan, July 2008)
„Film trifft Schule“: Die erfolgreiche Fortbildungsreihe von filmABC
Creators: name: Ordnung, Gerhardt
name: Prasse, Markus
Publisher: name: Medienimpulse
Year: 2011

description: Medienimpulse, Bd. 49 Nr. 4 (2011): 4/2011 - Bildbewegungen/Räume des Filmischen
Microservice-based Architecture for the Integration of Data Backends and Dashboard Applications in the Energy and Environment Domains
Creators: name: Sidler, Jannik
name: Braun, Eric
name: Schmitt, Christian
name: Schlachter, Thorsten
name: Hagenmeyer, Veit
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: environmental information systems
energy dashboards
web application
software architecture
application microservice
onion architecture

description: This article presents a software architecture based on the onion architecture that uses the concept of application microservices in order to integrate data backends with dashboard applications. Its main goal is to reduce the complexity in the architecture's frontend and therefore to increase the performance of the application for the user. The concept of the added application layer as well as its interaction with the other parts of the architecture is described in detail. Then an evaluation of its advantages is presented which shows the benefits of the concept regarding performance and simplicity using a real-world use case in the energy and environmental domains.
title: Bauschäden im Wohn- und Gewerbebau – eine Thüringer Bestandsaufnahme und Ansätze zur Problemlösung
Creators: name: Dannecker, Lutz
Publisher: name: Bauhaus-Universität Weimar
Year: 2000
Subjects: subject: Baubetriebslehre
subject: Qualität
subject: Prozessfähigkeit
subject: Bauschaden
subject: Wohnungsbau
subject: 620

description: Der Verfasser gibt einen Überblick über die aktuelle Bauschadensforschung an Wohn-, Gewerbe- und Industriebauten (Schadensanfälligkeit, zeitliche Verteilung von Bauschäden, Verteiliung der Verursachung und des Verschuldens, Schadensintensität in Abhängigkeit von den Vertragsstrukturen, Mängel- und Schadensbeseitigungskosten). Es werden Schlussfolgerungen auf notwendige Maßnahmen zur Reduzierung der Schadensintensität gezogen.
description: Tag des Baubetriebs 2000 - Tagungsbeiträge: "Prozesssteuerung - Projektleitung - Dienstleistung", p. 69
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 02
Thermodynamics and remnants of Kiselev black holes in Rainbow gravity
Creators: name: Morais, P. H.
name: Silva, G. V.
name: Graça, J. P. Morais
name: Bezerra, V. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We do a detailed study of the thermodynamics of black holes in Rainbow gravity in the framework of the Kiselev metric, taking into account different cosmic fluids which can mimic several kinds of dark energy scenarios. A discussion related to the appearance of black hole remnants is presented and, unlike other studies on the same topic, we found no evidence of the appearance of remnants in Rainbow gravity, except in peculiar cases.
Hamiltonian Analysis of non-chiral Plebanski Theory and its Generalizations
Creators: name: Alexandrov, Sergei
name: Krasnov, Kirill
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider non-chiral, full Lorentz group-based Plebanski formulation of general relativity in its version that utilizes the Lagrange multiplier field Phi with "internal" indices. The Hamiltonian analysis of this version of the theory turns out to be simpler than in the previously considered in the literature version with Phi carrying spacetime indices. We then extend the Hamiltonian analysis to a more general class of theories whose action contains scalars invariants constructed from Phi. Such theories have recently been considered in the context of unification of gravity with other forces. We show that these more general theories have six additional propagating degrees of freedom as compared to general relativity, something that has not been appreciated in the literature treating them as being not much different from GR.
description: 10 pages
title: Qualitätssicherung durch baubegleitende Prüfung
Creators: name: Bücker, Joachim
Publisher: name: Bauhaus-Universität Weimar
Year: 2000
Subjects: subject: Baubetriebslehre
subject: Qualität
subject: Prozessfähigkeit
subject: 620

description: Darstellung der aktuellen Situation der Qualitätssicherung im Bauwesen, der Aufgaben und der Vorgehensweise des TÜV Bautechnik bei der Qualitätsüberwachung am Bau.
description: Tag des Baubetriebs 2000 - Tagungsbeiträge: "Prozesssteuerung - Projektleitung - Dienstleistung", p. 61
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 02
Near Zone Hydrodynamics of AdS/CFT Jet Wakes
Creators: name: Noronha, Jorge
name: Gyulassy, Miklos
name: Torrieri, Giorgio
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The energy-momentum tensor of a supersonic heavy quark jet moving through a strongly-coupled $\mathcal{N}=4$ SYM plasma is analyzed in terms of first-order Navier-Stokes hydrodynamics. We focus on the near zone ``head'' region close to the heavy quark where deviations from hydrodynamic behavior are expected to be large. For realistic quark velocities, $v=0.99$, we find that the non-hydrodynamical head region is confined at a narrow pancake surrounding the jet with a width $\sim 1/T$ and transverse radius $\sim 3/T$. Outside this jet head region, the jet induced stress is well approximated by Navier-Stokes hydrodynamics.
description: 4 pages, 5 figures, Presented at Quark Matter 2008: 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (QM 2008), Jaipur, India, 4-10 Feb 2008
The q-exponential family in statistical physics
Creators: name: Naudts, Jan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The notion of generalised exponential family is considered in the restricted context of nonextensive statistical physics. Examples are given of models belonging to this family. In particular, the q-Gaussians are discussed and it is shown that the configurational probability distributions of the microcanonical ensemble belong to the q-exponential family.
description: 18 pages, 4 figures, proceedings of SigmaPhi 2008
title: Zusammenwirken der am Prozess Beteiligten bei komplexen Projekten
Creators: name: Duft, Mathias
Publisher: name: Bauhaus-Universität Weimar
Year: 2000
Subjects: subject: Baubetriebslehre
subject: Planung
subject: Management
subject: Baustelle
subject: Baustelleneinrichtung
subject: 620

description: Eine integrierte Gesamtplanung, ein konzentriertes Planungs- und Freigabesystem, ein konsequentes Baustellenmanagement sowie die Einbeziehung und Bündelung des Know how und der Leistungsfähigkeit solventer Partner sind Grundlage für die Optimierung der Kommunikations- und Entscheidungswege für die systemgeführte Prozesslenkung. Das wird am Beispiel der Errichtung des Innerstädtischen Einkaufszentrums Anger 1 belegt.
description: Tag des Baubetriebs 2000 - Tagungsbeiträge: "Prozesssteuerung - Projektleitung - Dienstleistung", p. 43
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 02
On the index of constant mean curvature 1 surfaces in hyperbolic space
Creators: name: de Lima, Levi Lopes
name: Rossman, Wayne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10; 53A35; 53A42

description: We show that the index of a constant mean curvature 1 surface in hyperbolic 3-space is completely determined by the compact Riemann surface and secondary Gauss map that represent it in Bryant's Weierstrass representation. We give three applications of this observation. Firstly, it allows us to explicitly compute the index of the catenoid cousins and some other examples. Secondly, it allows us to be able to apply a method similar to that of Choe (using Killing vector fields on minimal surfaces in Euclidean 3-space) to our case as well, resulting in lower bounds of index for other examples. And thirdly, it allows us to give a more direct proof of the result by do Carmo and Silveira that if a constant mean curvature 1 surface in hyperbolic 3-space has finite total curvature, then it has finite index. Finally, we show that for any constant mean curvature 1 surface in hyperbolic 3-space that has been constructed via a correspondence to a minimal surface in Euclidean 3-space, we can take advantage of this correspondence to find a lower bound for its index.
title: Zukunft des Bauens aus der Sicht eines industriellen Baubetriebs
Creators: name: Frerichs, Uwe
Publisher: name: Bauhaus-Universität Weimar
Year: 2000
Subjects: subject: Baubetriebslehre
subject: Planung
subject: Prognose
subject: 620

description: Im Beitrag werden die Merkmale zukünftigen Bauens dargestellt. Sie beruhen auf drei Kernpunkten: Rationalisierung, Standardisierung und Weiterentwicklung der Technik. Betont wird der hohe Einfluss der Planung auf die Qualität der Bauwerke.
description: Tag des Baubetriebs 2000 - Tagungsbeiträge: "Prozesssteuerung - Projektleitung - Dienstleistung", p. 33
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 02
A contemporary Peruvian weaving technique on the continuous warp loom : learning and instruction in a non literate society
Creators: name: McRobb, Janice Helen
Publisher: name: University of British Columbia
Year: 2010

description: The first chapters of this thesis provide a brief survey to establish the antiquity of the Peruvian textile tradition. The development of this tradition, using the most rudimentary of equipment, the continuous warp loom, is traced from its beginnings millenia ago, to the Spanish conquest in the fifteenth century, which disruption of the established pattern of life resulted in the loss of many sophisticated textile techniques. The continuation of the warp-pattern weaves results from their position as peasant weaving techniques, in contradistinction to the other techniques which were used in the production of status textiles. The versatility of the continuous warp loom is shown, with reference to prehistoric models and early Spanish literature, followed by a discussion of contemporary loom set ups, observed during field work in Peru in 1978. A later chapter provides detailed descriptions of spinning, warping and weaving techniques observed in the Cuzco region of Peru. The weaving descriptions include finger weaving techniques in the production of narrow and wide bands, and loom weaving of wide cloth, using a variety of loom set ups. The thesis concludes with a description of how the Peruvian weavers transmit their knowledge, as experienced by the researcher, who participated in this culture transmission by learning to weave while in Peru, and the effects of the learning process on the evolution of designs in the textiles.
New dispersion relations in the description of $ππ$ scattering amplitudes
Creators: name: Kaminski, R.
name: Garcia-Martin, R.
name: Grynkiewicz, P.
name: Pelaez, J. R.
name: Yndurain, F. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a set of once subtracted dispersion relations which implement crossing symmetry conditions for the $ππ$ scattering amplitudes below 1 GeV. We compare and discuss the results obtained for the once and twice subtracted dispersion relations, known as Roy's equations, for three $ππ$ partial JI waves, S0, P and S2. We also show that once subtracted dispersion relations provide a stringent test of crossing and analyticity for $ππ$ partial wave amplitudes, remarkably precise in the 400 to 1.1 GeV region, where the resulting uncertainties are significantly smaller than those coming from standard Roy's equations, given the same input.
description: 8 pages, 2 figures, to appear in the Proceedings of the Meson 2008 conference, June 6-10, 2008, Cracow, Poland
Profoundly deaf students’ performance on arithmetical word problems
Creators: name: Lapawa, Marguerite Clauvet
Publisher: name: University of British Columbia
Year: 2010

description: The investigation examined the performance of profoundly hearing impaired students on one-step word problems in arithmetic. Students were administered a computation task and those who met the pass requirements were given a word problem task. These ninety subjects were divided into four age groups as follows: 8-11 years; 12-13 years; 14-15 years; and 16+ years. Statistical treatment of the data showed no significant differences when age and gender were examined for any of the word problems which involved the four operations of addition, subtraction, multiplication or division. Significant differences however, were found for type of question for addition and subtraction word problems. There was a significant interaction between type of question, age, and gender for division problems. When age and gender were collapsed, a second analysis revealed that operation, type of question, and the interaction between operation and type of question were all significant. Error analysis revealed that profoundly hearing impaired students, when faced with a word problem requiring subtraction or division, were likely to either add or multiply. Educational implications are discussed and suggestions made for further research.
‘Startling’, ‘Extraordinarily beautiful’, and ‘Obtrusive’: Reactions and Responses to the Stereo-Autochrome
Creators: name: Langford, Catlin
Publisher: name: International Journal on Stereo & Immersive Media
Year: 2022

description: The commercial release of the Lumière Autochrome in 1907 made three-dimensional colour images appear in reach. The issues surrounding the viewing of autochromes seemed to be mitigated in the stereoscopic format, with stereo-autochromes branded a sensation in the photographic and popular press, compared to witchcraft in their combination of the stereoscopes’ sense of depth and relief with the autochrome’s full spectrum of colours. But over time, issues with the stereo-autochrome, ranging from ‘clumping’ to exposure times, fed into a rejection of the invention. This paper will draw on new research into the Victoria and Albert Museum’s collection of autochromes and related objects and ephemera. 
description: International Journal on Stereo & Immersive Media, Vol. 6 No. 1 (2022): International Journal on Stereo & Immersive Media
Overlaid Cellular and Mobile Ad Hoc Networks
Creators: name: Huang, Kaibin
name: Chen, Yan
name: Chen, Bin
name: Yang, Xia
name: Lau, Vincent K. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In cellular systems using frequency division duplex, growing Internet services cause unbalance of uplink and downlink traffic, resulting in poor uplink spectrum utilization. Addressing this issue, this paper considers overlaying an ad hoc network onto a cellular uplink network for improving spectrum utilization and spatial reuse efficiency. Transmission capacities of the overlaid networks are analyzed, which are defined as the maximum densities of the ad hoc nodes and mobile users under an outage constraint. Using tools from stochastic geometry, the capacity tradeoff curves for the overlaid networks are shown to be linear. Deploying overlaid networks based on frequency separation is proved to achieve higher network capacities than that based on spatial separation. Furthermore, spatial diversity is shown to enhance network capacities.
description: 5 pages; submitted to IEEE ICCS 2008 (Guangzhou, P.R.China)
Coregularity of smooth Fano threefolds
Creators: name: Avilov, Artem
name: Loginov, Konstantin
name: Przyjalkowski, Victor
Publisher: name: arXiv
Year: 2023
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We study the coregularity of smooth Fano threefolds. We prove that for 100 out of 105 families of smooth Fano threefolds, a general member in the family has coregularity 0; moreover, for 92 families out of these 100, any member in the family has coregularity 0; for the remaining 5 families, we obtain some partial results. In particular, we show that there exist families of smooth Fano threefolds whose general elements have positive coregularity.
description: 40 pages
Non-extensive equilibration in relativistic matter
Creators: name: Biro, T. S.
name: Purcsel, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a view of the non-extensive thermodynamics based on general composition rules. A formal logarithm maps these rules to the addition, which can be used to generate stationary distributions by standard techniques. We review the most commonly used rules and as an application we discuss the Tsallis-Pareto distribution of transverse momenta of energetic hadrons, which emerge from relativistic heavy-ion collisions.
description: Talk presented at SigmaPhi 2008 Conference, Crete, Greece. Submitted to Central European Journal for Physics
Pfad durch den rechtlichen Dschungel bei Medienproduktionen mit Kindern und Jugendlichen
Creators: name: Berger, Christian
Publisher: name: Medienimpulse
Year: 2011

description: Medienimpulse, Bd. 49 Nr. 4 (2011): 4/2011 - Bildbewegungen/Räume des Filmischen
title: Arbeit 4.0 aus Geschlechterperspektive
Creators: name: Kutzner, Edelgard
Publisher: name: DuEPublico: Duisburg-Essen Publications online, University of Duisburg-Essen, Germany
Year: 2021
Subjects: subject: 300
subject: Arbeit
subject: Technik
subject: Frauen

description: Mit Arbeit 4.0 wird allgemein ein digitaler Transformationsprozess beschrieben, der neue Arbeitsformen erforderlich macht. In solchen Prozessen entstehen Möglichkeiten für eine geschlechtergerechte Gestaltung der Arbeit. Wie wir in unserer empirischen Untersuchung zeigen, geschieht dies jedoch nicht zwangsläufig (Kutzner et al. 2021). In welche Richtung sich Arbeit 4.0 aus einer Geschlechterperspektive entwickelt, hängt von etlichen Faktoren ab. In diesem Beitrag werden verallgemeinerbare Entwicklungen und Interventionsmöglichkeiten anhand der Auswirkungen der Digitalisierung im ‚frauentypischen‘ Bereich der Sachbearbeitung vorgestellt.
description: blog interdisziplinäre geschlechterforschung
Let's start with citizen science
Creators: name: Stožická, Zuzana
name: Habrmanová, Mária
Publisher: name: Zenodo
Year: 2021
Subjects: citizen science
Slovakia
MOOC
EU-Citizen.Science

description: Conference presentation for a virtual booth in The future of citizen science: sharing experiences from the European community (24.-25. 11. 2021) concerning the first Slovak course on Citizen Science created by the team of Slovak Center for Scientific and Technical Information for the platform EU-Citizen.Science. In Slovakia, the concept of citizen science is not yet widely known. There is only a limited number of projects using methods of citizen participation for science. We addressed the need for developing an introductory course in Slovak to spread the ideas of citizen science, its society-advancing potential, and good practice awareness in and outside of the scientific community. In the field calling for the participation of stakeholders with different backgrounds (not equally proficient in English), it is essential to lay the foundation of knowledge in the local language. The module consists of five sections dedicated to particular development steps substantial for the building of a citizen science project – looking for opportunities, designing the project, cooperation with partners, data management and ethical issues, and an impact of the project. The theoretical background is accompanied by videos where people working on citizen science projects in Slovakia share their experiences.
Adventures of A Photographer from Madeira in the Imperial Court of Brazil
Creators: name: Lissovsky, Maurício
Publisher: name: International Journal on Stereo & Immersive Media
Year: 2020

description: Based on the discovery of four portraits in the collection of the Brazilian National Archives, we researched the trajectory of Diogo


Luis Cipriano (1820-1870), born on Madeira Island, one of the first daguerreotypists to settle in Rio de Janeiro. We try to describe


the tensions and conflicts between painters, miniaturists and photographers in search for their prestige and commercial success


in the capital of the Empire of Brazil, between 1850 and 1870. On the other hand, we analyze how in the public arena of the


newspaper pages and the busy corners of the Court, techniques are confronted, talents are measured and, mainly, the signs of


modernity and the monopoly of saudade (nostalgia) are disputed.


 


Resumo:


A partir da descoberta de quatro retratos na coleção do Arquivo Nacional brasileiro, investigamos a trajetória de Diogo Luis


Cipriano (1820-1870), nascido na Ilha da Madeira, um dos primeiros daguerreotipistas a se estabelecer no Rio de Janeiro.


Procuramos descrever as tensões e os conflitos entre pintores, miniaturistas e fotógrafos por prestígio e sucesso comercial na


capital do Império do Brasil, entre 1850 e 1870. Por outro lado, observamos como na arena pública das páginas dos jornais e


das movimentadas esquinas da Corte confrontam-se técnicas, medem-se talentos e, principalmente, disputam-se os signos de


modernidade e o monopólio da saudade.
description: International Journal on Stereo & Immersive Media, Vol. 3 No. 1 (2019): International Journal on Stereo & Immersive Media
Rezension: Cox und der Lauf der Zeit
Creators: name: Barberi, Alessandro
Publisher: name: Medienimpulse
Year: 2018

description: Alessandro Barberi berichtet von Christoph Ransmayrs chronometrischer Abhandlung „Cox und der Lauf der Zeit“. Ein Buch, das an die Grenze von Historiografie und Fiktion führt, wenn es uns auf eine Reise ins China des 18. Jahrhunderts mitnimmt ...
description: Medienimpulse, Bd. 54 Nr. 4 (2016): 4/2016 - Macht, Souveränität, Herrschaft
Power sums of Hecke's eigenvalues and application
Creators: name: Wu, Jie
Publisher: name: arXiv
Year: 2008
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: We sharpen some estimates of Rankin on power sums of Hecke eigenvalues, by using Kim & Shahidi's recent results on higher order symmetric powers. As an application, we improve Kohnen, Lau & Shparlinski's lower bound for the number of Hecke eigenvalues of same signs.
Ehrhart Theory for Lawrence Polytopes and Orbifold Cohomology of Hypertoric Varieties
Creators: name: Stapledon, Alan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M25, 52B20, 52C35, 53C26

description: We establish a connection between the orbifold cohomology of hypertoric varieties and the Ehrhart theory of Lawrence polytopes. More specifically, we show that the dimensions of the orbifold cohomology groups of a hypertoric variety are equal to the coefficients of the Ehrhart $δ$-polynomial of the associated Lawrence polytope. As a consequence, we deduce a formula for the Ehrhart $δ$-polynomial of a Lawrence polytope and use the injective part of the Hard Lefschetz Theorem for hypertoric varieties to deduce some inequalities between the coefficients of the $δ$-polynomial.
description: 10 pages
Tricritical O(n) models in two dimensions
Creators: name: Nienhuis, Bernard
name: Guo, Wenan
name: Blöte, Henk W. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We show that the exactly solved low-temperature branch of the two-dimensional O($n$) model is equivalent with an O($n$) model with vacancies and a different value of $n$. We present analytic results for several universal parameters of the latter model, which is identified as a tricritical point. These results apply to the range $n \leq 3/2$, and include the exact tricritical point, the conformal anomaly and a number of scaling dimensions, among which the thermal and magnetic exponent, the exponent associated with crossover to ordinary critical behavior, and to tricritical behavior with cubic symmetry. We describe the translation of the tricritical model in a Coulomb gas. The results are verified numerically by means of transfer-matrix calculations. We use a generalized ADE model as an intermediary, and present the expression of the one-point distribution function in that language. The analytic calculations are done both for the square and the hexagonal lattice.
description: 24 pages, 4 figures
Die frühmittelalterlichen Grabfunde von Micheldorf / Kremsdorf, OÖ
Creators: name: Hausmair, Barbara
Year: 2008

description: The dissertation concerns the archaeological finds of the early medieval burials of Micheldorf/Kremsdorf, Upper Austria, a site that has been known for more than a hundred years. Through typochronological analyses of the grave goods a chronological sequence of the cemetery has been developed, that ranges from the 8th to the early 9th centuries and allows examine culture historical processes in the Southeast of Upper Austria during this period. Influences of the Bavarian area are represented in the material culture, as well aselements of the Avar culture, respectively Karantanien. Although located on the periphery of the Bavarian duchy, the population buried in the necropolis of Kremsdorf wasn’t integrated in the ecclesiastic organisation of the Salzburg diocese until the end of the 8th century. After Charlemagne’s ascension to power in large parts of Europe and the defeat of the Avar Kaghanat, the bishop of Salzburg started an intensive campaign for proselytizing the in the area of the eastern Alps. This process can be observed by the abandonment the cemetery in the Kremsdorf valley and the erection of a Christian cemetery and church on the nearby Georgenberg.
description: Die Arbeit widmet sich der Aufarbeitung des archäologischen Fundmaterials des Bestattungsareals von Micheldorf/Kremsdorf, OÖ, welches seit über hundert Jahren als Fundstelle frühmittelalterlicher Bestattungen bekannt ist. Durch typochronologische Analysen des Fundstoffes wurde eine zeitliche Einordnung des Gräberkomplexes vorgenommen und ein Einblick in die kulturellen Prozesse des 8. und frühen 9. Jahrhunderts im südöstlichen Oberösterreich ermöglicht. Verschiedenste kulturelle Einflüsse spiegeln sich im Beigabenmaterial der Verstorbenen wieder. An der Peripherie des bairischen Herzogtums gelegen, beginnt ab der ersten Hälfte des 8. Jahrhunderts eine durch die Kirchenorganisation noch nicht erfasste Bevölkerung ihre Toten in Kremsdorf zu bestatten, wobei die Trachtausstattung durch spätmerowingerzeitliche Elemente geprägt ist (Pressblechfibel, Körbchenohrgehänge, Brakteat). Als Folge der karantanischen Ethnogenese kommt es im 8. Jahrhundert zum Auftreten materieller Güter aus dem karantanischen Raum (Stabarmreifen, Gürtelgarnitur, Ohrringe) im Kremstal, was auch mit dem Fortbestehen der alten, römischen Verkehrsverbindungen über den Phyrnpass zusammenhängt. Im Zuge einer intensivierten salzburgischen Mission im Ostalpenraum nach den Awarenkriegen, kommt es auch im Kremstal zur schrittweisen Einbindung der Bevölkerung in die kirchlichen Organisationsstrukturen, was zur Aufgabe des Gräberfelds von Kremsdorf und der anknüpfenden Belegung des christlichen Friedhofs um die Kirche am Georgenberg führt.
Big-Bang Nucleosynthesis Reactions Catalyzed by a Long-Lived Negatively Charged Leptonic Particle
Creators: name: Kamimura, Masayasu
name: Kino, Yasushi
name: Hiyama, Emiko
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: An accurate quantum three-body calculation is performed for the new type of big-bang nucleosynthesis (BBN) reactions that are catalyzed by a long-lived negatively-charged, massive leptonic particle (called X^-) such as the supersymmetric (SUSY) particle stau. The reactions studied here includes, i) 4He-transfer reactions such as (4He X)+d --> 6Li+X, ii) radiative capture reactions such as (7Be X)+ p --> (8B X) + gamma, iii) three-body breakup reactions such as (7Li X)+ p --> 4He+4He+X, iv) charge-exchange reactions such as (p X)+4He -->(4He X) +p, and v) neutron induced reactions such as (8Be X)+ n -->9Be+X, where (A X) denotes a Coulombic bound state of a nucleus A and X^-. In recent papers it has been claimed that some of the catalyzed BBN reactions have significantly large cross sections so as to markedly change the abundances of some elements, not only giving a solution to the 6Li-7Li problem (calculated underproduction of 6Li by a factor of 1000 and overproduction of 7Li+7Be by a factor of nearly 3) but also imposing strong restrictions on the lifetime and the primordial abundance of X^-. However, most of the calculations of these reaction cross sections in the literature were performed assuming too naive models or approximations that are unsuitable for the complicated low-energy nuclear reactions. We use a high-accuracy few-body calculational method developed by the authors, and provide precise cross sections and rates of these catalyzed BBN reactions for use in the BBN network calculation.
description: 40 pages, 11 figures; v3: matches published version, minor grammatical changes, references renumbered
Limit Surfaces of Riemann Examples
Creators: name: Hoffman, David
name: Rossman, Wayne
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10; 49Q05

description: The family of embedded, singly periodic minimal surfaces of Riemann have as limit-surfaces the helicoid, the catenoid, a single plane, or an infinite set of equally-spaced parallel planes.
Tuning of metal-insulator transition of two-dimensional electrons at parylene/SrTiO$_3$ interface by electric field
Creators: name: Nakamura, H.
name: Tomita, H.
name: Akimoto, H.
name: Matsumura, R.
name: Inoue, I. H.
name: Hasegawa, T.
name: Kono, K.
name: Tokura, Y.
name: Takagi, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Electrostatic carrier doping using a field-effect-transistor structure is an intriguing approach to explore electronic phases by critical control of carrier concentration. We demonstrate the reversible control of the insulator-metal transition (IMT) in a two dimensional (2D) electron gas at the interface of insulating SrTiO$_3$ single crystals. Superconductivity was observed in a limited number of devices doped far beyond the IMT, which may imply the presence of 2D metal-superconductor transition. This realization of a two-dimensional metallic state on the most widely-used perovskite oxide is the best manifestation of the potential of oxide electronics.
Hormonal parameters in foal hair: from birth to post weaning
Creators: name: Montillo, Marta <1986>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: VET/02 Fisiologia veterinaria

description: The aim of this study was to investigate cortisol and progesterone (P4) trends in hair from birth up to postweaning in Italian trotter foals. Hair sampling is non-invasive and hair concentrations provide retrospective information of integrated hormone secretion over periods of several months. Samples were collected at birth and at a distance of 30 days, collecting only regrowth hair, up to post weaning.
From birth to 3 months, foals cortisol falls from 47.64±5.6 to 4.9±0.68 pg/mg (mean±standard error), due to the interruption of foetal-placental connection and progressive adaptation to extrauterine life. From the third month of life to post weaning concentrations don’t vary significantly, underlining a non-chronic activation of the HPA axis. 
Hair P4 significantly decreases in the first two samples (from 469.68±72,54 to 184.65±35.42 pg/mg). At 2 (111.78±37.13 pg/mg) and 3 months (35.96±6.33 pg/mg) hair concentrations don’t show significant differences. These concentrations are not due to interactions of the utero-placental tissues with foals, animals are still prepuberal and P4 isn’t produced by adrenals as a result of high stress. We could therefore hypothesize that the source of foal hair P4 could be milk, suckled from mares. The high individual variability in hair at 2 and 3 months is due to a gradual and subjective change in foal diet, from milk to solid food, and to the fact that mares do not allow to suckle. From fourth month to post weaning P4 concentration in hair remains around 37.56±6.45 pg/mg. 
In conclusion, hair collected at birth, giving information about last period of gestation, could be used along with traditional matrices, to evaluate foals maturity. Hair cortisol could give indications about foals capacity to adapt to extra-uterine life. Finally milk, configuring as a bringer of nutrients and energy and assuming the characteristic of a nutraceutical, could give fundamental information about parental care.
UV-complete Gauged Anomaly-free U(1) Froggatt-Nielsen Model
Creators: name: Rathsman, Johan
name: Tellander, Felix
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2023
Subjects: fermion, mass
neutrino, right-handed
symmetry, flavor
Higgs particle, doublet
mixing
Froggatt-Nielsen
U(1)
pole
gravitation

description: We investigate the possibility of understanding all fermion masses and mixings within a gauged Froggatt-Nielsen framework. Continuing the work from [J. Rathsman and F. Tellander, Phys. Rev. D \textbf{100}, 055032 (2019)] we especially focus on a UV completion of this type of models. Independent of the UV completion, we construct an anomaly-free two Higgs doublet model with a gauged $U(1)_F$ flavor symmetry and three right-handed neutrinos explaining all observed masses and mixings in the fermion sector. We then investigate two different UV completions: one through fermions and one through scalars. The fermion completion has low lying Landau poles in the gague couplings while the scalar completion is viable up to the gravity scale.
Meron-antimeron crystals in noncentrosymmetric itinerant magnets on a triangular lattice
Creators: name: Hayami, Satoru
name: Yambe, Ryota
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Multiple-$Q$ magnetic states often induce nontrivial topological spin textures, such as a skyrmion and a hedgehog. We theoretically investigate yet another multiple-$Q$ state with topological defects, a meron-antimeron crystal (MAX), represented by a periodic array of the meron and antimeron with a half-integer skyrmion number. Performing simulated annealing for an effective spin model of noncentrosymmetric itinerant magnets on a triangular lattice, we show that rectangular-shaped and triangular-shaped MAXs are stabilized by the interplay between the biquadratic interaction arising from the spin-charge coupling and the Dzyaloshinskii-Moriya interaction arising from the spin-orbit coupling. We also discuss the effect of a magnetic field on the triangular MAX, where highly anisotropic responses against a field direction are found. In particular, we show that the triangular MAX turns into the skyrmion crystal for the fields along the $y$ and $z$ directions, while it is replaced by another chiral state for the field along the $x$ direction. These results would inspire further experimental investigation of the MAXs in itinerant magnets.
description: 11 pages, 10 figures
Charged Higgs decay to $W^{\pm}H$ at a high energy lepton collider
Creators: name: Hashemi, Majid
name: Roushandel, Laleh
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we present a search strategy for heavy charged Higgs boson at Compact Linear Collider (CLIC) as a future $e^+e^-$ collider. The signal is charged Higgs boson pair production in two Higgs doublet model (2HDM) followed by $H^{\pm}\to W^{\pm}H$ and $H\to b\bar{b}$. Here, $H$ denotes the heavy CP-even neutral Higgs boson of the model. The collider center of mass energy is chosen to be $\sqrt{s}=1400$ GeV as the second stage of CLIC operation. In this case, $m_{H^+}<\sqrt{s}/2$ can be explored due to the pair production. It is shown that the signal of charged Higgs in the mass range 250 GeV $
description: 12 pages, 24 figures, version to appear in EPJC