cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Annotating Control-Flow Graphs for Formalized Test Coverage Criteria
Creators: name: Kauffman, Sean
name: Moreno, Carlos
name: Fischmeister, Sebastian
Publisher: name: arXiv
Year: 2024
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Control flow coverage criteria are an important part of the process of qualifying embedded software for safety-critical systems. Criteria such as modified condition/decision coverage (MC/DC) as defined by DO-178B are used by regulators to judge the adequacy of testing and by QA engineers to design tests when full path coverage is impossible.
 Despite their importance, these coverage criteria are often misunderstood. One problem is that their definitions are typically written in natural language specification documents, making them imprecise. Other works have proposed formal definitions using binary predicate logic, but these definitions are difficult to apply to the analysis of real programs. Control-Flow Graphs (CFGs) are the most common model for analyzing program logic in compilers, and seem to be a good fit for defining and analyzing coverage criteria. However, CFGs discard the explicit concept of a decision, making their use for this task seem impossible.
 In this paper, we show how to annotate a CFG with decision information inferred from the graph itself. We call this annotated model a Control-Flow Decision Graph (CFDG) and we use it to formally define several common coverage criteria. We have implemented our algorithms in a tool which we show can be applied to automatically annotate CFGs output from popular compilers.
Rezension: Draußen. Zum neuen Naturbezug in der Popkultur der Gegenwart
Creators: name: Lenhart, Johanna
Publisher: name: Medienimpulse
Year: 2017

description: Medienimpulse, Bd. 55 Nr. 4 (2017): 4/2017 - Kreativität/Ko-Kreativität
Inconsistency of the judgment matrix in the AHP method and the decision maker's knowledge
Creators: name: Szczypinska, Anna
name: Piotrowski, Edward W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: In this paper we propose a method for a quantitative estimation of the decision maker's knowledge in the context of the Analytic Hierarchy Process (AHP) in cases, where the judgment matrix is inconsistent. We show that the matrix of deviation from the transitivity condition corresponds to the rate matrix for transaction costs in the financial market. For the quantitative estimation of the decision maker's professionalism, we apply the Ising model and thermodynamics tools.
description: 17 pages
Quantum Critical Behaviour in a Graphene-like Model
Creators: name: Hands, Simon
name: Strouthos, Costas
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present the first results of numerical simulations of a 2+1 dimensional fermion field theory based on a recent proposal for a model of graphene, consisting of N_f four-component Dirac fermions moving in the plane and interacting via an instantaneous Coulomb interaction. In the strong-coupling limit we identify a critical number of flavors N_fc=4.8(2) separating an insulating from a conducting phase. This transition corresponds to the location of a quantum critical point, and we use a fit to the equation of state for the chiral order parameter to estimate the critical exponents. Next we simulate N_f=2 corresponding to real graphene, and approximately locate a transition from strong to weak coupling behaviour. Strong correlations are evident in the weak-coupling regime.
description: 14 pages, 6 figures
Multi-modal Masked Siamese Network Improves Chest X-Ray Representation Learning
Creators: name: Shurrab, Saeed
name: Guerra-Manzanares, Alejandro
name: Shamout, Farah E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Self-supervised learning methods for medical images primarily rely on the imaging modality during pretraining. While such approaches deliver promising results, they do not leverage associated patient or scan information collected within Electronic Health Records (EHR). Here, we propose to incorporate EHR data during self-supervised pretraining with a Masked Siamese Network (MSN) to enhance the quality of chest X-ray representations. We investigate three types of EHR data, including demographic, scan metadata, and inpatient stay information. We evaluate our approach on three publicly available chest X-ray datasets, MIMIC-CXR, CheXpert, and NIH-14, using two vision transformer (ViT) backbones, specifically ViT-Tiny and ViT-Small. In assessing the quality of the representations via linear evaluation, our proposed method demonstrates significant improvement compared to vanilla MSN and state-of-the-art self-supervised learning baselines. Our work highlights the potential of EHR-enhanced self-supervised pre-training for medical imaging. The code is publicly available at: https://github.com/nyuad-cai/CXR-EHR-MSN
description: Under review
Rezension: Urheberrecht für Lehrende – Ein Leitfaden für die Praxis mit 80 Fragen und Antworten
Creators: name: Olensky, Walter
Publisher: name: Medienimpulse
Year: 2017

description: Medienimpulse, Bd. 55 Nr. 4 (2017): 4/2017 - Kreativität/Ko-Kreativität
The transverse angular momentum sum rule
Creators: name: Leader, Elliot
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We explain the origin of the controversy about the existence of a transverse angular momentum sum rule, and show that it stems from utilizing an incorrect result in the literature, concerning the expression for the expectation values of the angular momentum operators. We demonstrate a new, short and direct way of obtaining correct expressions for these expectation values, from which a perfectly good transverse angular momentum sum rule can be deduced. We also introduce a new classification of sum rules into primary and secondary types. In the former all terms occurring in the sum rule can be measured experimentally; in the latter some terms cannot be measured experimentally.
description: Contribution to TRANSVERSITY 2008, Ferrara, May 2008. 7 pages
An AI Architecture with the Capability to Classify and Explain Hardware Trojans
Creators: name: Whitten, Paul
name: Wolff, Francis
name: Papachristou, Chris
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cryptography and Security (cs.CR)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Hardware trojan detection methods, based on machine learning (ML) techniques, mainly identify suspected circuits but lack the ability to explain how the decision was arrived at. An explainable methodology and architecture is introduced based on the existing hardware trojan detection features. Results are provided for explaining digital hardware trojans within a netlist using trust-hub trojan benchmarks.
The phantom dark matter halos of the Local Volume in the context of modified Newtonian dynamics
Creators: name: Oria, P. -A.
name: Famaey, B.
name: Thomas, G. F.
name: Ibata, R.
name: Freundlich, J.
name: Posti, L.
name: Korsaga, M.
name: Monari, G.
name: Müller, O.
name: Libeskind, N. I.
name: Pawlowski, M. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We explore the predictions of Milgromian gravity (MOND) in the Local Universe by considering the distribution of the `phantom' dark matter (PDM) that would source the MOND gravitational field in Newtonian gravity, allowing an easy comparison with the dark matter framework. For this, we specifically deal with the quasi-linear version of MOND (QUMOND). We compute the `stellar-to-(phantom)halo-mass relation' (SHMR), a monotonically increasing power-law resembling the SHMR observationally deduced from spiral galaxy rotation curves in the Newtonian context. We show that the gas-to-(phantom)halo-mass relation is flat. We generate a map of the Local Volume in QUMOND, highlighting the important influence of distant galaxy clusters, in particular Virgo. This allows us to explore the scatter of the SHMR and the average density of PDM around galaxies in the Local Volume, $Ω_{\rm pdm} \approx 0.1$, below the average cold dark matter density in a $Λ$CDM Universe. We provide a model of the Milky Way in its external field in the MOND context, which we compare to an observational estimate of the escape velocity curve. Finally, we highlight the peculiar features related to the external field effect in the form of negative PDM density zones in the outskirts of each galaxy, and test a new analytic formula for computing galaxy rotation curves in the presence of an external field in QUMOND. While we show that the negative PDM density zones would be difficult to detect dynamically, we quantify the weak lensing signal they could produce for lenses at $z \sim 0.3$.
description: Accepted for publication in ApJ
The establishment of a dietary interaction between molybdenum and selenium based on weight gain and feed consumption in broilers
Creators: name: Weisstock, Silvia Rita
Publisher: name: University of British Columbia
Year: 2010

description: A series of three experiments were carried out in order to demonstrate an interaction between molybdenum and selenium in broilers. Trail I investigated the interaction of selenium (0, 0.2, 0.4, and 0.8 ppm) with various toxic and subtoxic dietary levels of molybdenum (0, 0.5, 100, and 330 ppm), supplemented to a wheat based diet to broilers from one to four weeks of age. Results indicated that at 300 ppm molybdenum, increasing selenium levels resulted in progressive decline in weight gain, compared to a non-significant decline across these selenium levels when no molybdenum was supplemented. At these levels of molybdenum, selenium appeared to be acting antagonistically with molybdenum. At lower molybdenum levels, selenium exerted no apparent effects on weight gain. Selenium at toxic levels responded different from selenium at subtoxic dietary levels over molybdenum levels. Trial II, used 480 broiler chicks, assigned in a randomized block (RB) experimental design and 12 treatment combinations of selenium and molybdenum. Although the overall interaction effect was non-significant for weeks 1 to 4 inclusive, there were some definite interaction trends. Results indicated that at either basal or 3 ppm Se over basal 100, 200, or 300 ppm Mo, a non-significant difference in weight gain and feed consumption occurred. Selenium and molybdenum appeared to be interacting reciprocally. At 6 ppm dietary supplementation of selenium, however, combining increasing levels of molybdenum appeared to result in an independent toxic effect on weight gain which was additive for the two mineral toxicities, and not interactive. Using 480 broilers chicks assigned to a 3 x 4x3x3 multifactorial arrangement of 12 treatments an experiment was performed to investigate the effect on weight gain and feed consumption upon feeding toxic levels of molybdenum and selenium. Selenium levies ranged from basal, to 6, 12, and 18 ppm and molybdenum levels from basal, 400, and 800 ppm. Treatments were arranged in a RB experimental design. Results indicated that combining toxic dietary levels of selenium and molybdenum resulted in a measurable interaction in birds based on weight gain to feed consumption from one to four weeks of the experimental period. As the toxic dietary levels of selenium increased from basal to 6, 12, and 18 ppm the adverse effect of molybdenum at basal, 400 and 800 ppm became progressively reduced. At 18 ppm selenium, weight gain and feed consumption were the same irrespective of whether basal, 400, 800 ppm Mo was supplemented to the diet. The presence of toxic levels of selenium appeared to either reduce toxicity of molybdenum, or induce an increased tolerance for increasingly toxic levels of molybdenum. The nature of the interaction between selenium and molybdenum is discussed.
The Role of Second Trials in Cascades of Information over Networks
Creators: name: de Kerchove, C.
name: Krings, G.
name: Lambiotte, R.
name: Blondel, V. D.
name: Van Dooren, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We study the propagation of information in social networks. To do so, we focus on a cascade model where nodes are infected with {probability $p_1$ after their first contact with the information and with probability $p_2$ at all subsequent contacts.} The diffusion starts from one random node and leads to a cascade of infection. It is shown that first and {subsequent} trials play different roles in the propagation and that the size of the cascade depends in a non-trivial way on $p_1$, $p_2$ and on the network structure. Second trials are shown to amplify the propagation in dense parts of the network while first trials are {dominant for the exploration of} new parts of the network and launching new seeds of infection.
description: 7 pages, 6 figures
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Bonchi, Filippo
name: Puglisi, Simon J.
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2021
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 202, 46th International Symposium on Mathematical Foundations of Computer Science (MFCS 2021), pages 0:i-0:xvi
High-excitation molecular gas in local luminous AGN hosts
Creators: name: Papadopoulos, Padeli P.
name: Kovacs, A.
name: Evans, A. S.
name: Barthel, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We used the mm/sub-mm receivers on the James Clerk Maxwell Telescope (JCMT) to observe the CO J=3--2, 2--1 lines in five local, optically powerful AGN and the J=4--3 line in 3C 293 (a powerful radio galaxy). Luminous CO J=3--2 emission and high CO (3--2)/(1--0) intensity ratios are found in all objects, indicating highly excited molecular gas. In 3C 293 an exceptionally bright CO J=4--3 line is found which cannot be easily explained given its quiescent star-forming environment and low AGN X-ray luminosity. In this object shocks emanating from a well-known interaction of a powerful jet with a dense ISM may be responsible for the high excitation of its molecular gas on galaxy-wide scales. Star formation can readily account for the gas excitation in the rest of the objects, although high X-ray AGN luminosities can also contribute significantly in two cases. Measuring and eventually imaging CO line ratios in local luminous QSO hosts can be done by a partially completed ALMA during its early phases of commissioning, promising a sensitive probe of starburst versus AGN activity in obscured environments at high linear resolutions.
description: 6 pages, 1 figure, Accepted for publication in Astronomy & Astrophysics
Das kreative Potenzial digitaler Medien für Bildungsprozesse
Creators: name: Dobmeier, Florian
Publisher: name: Medienimpulse
Year: 2018

description: Eine Aufgabe von Hochschulen heutzutage besteht in der Förderung Studierender bei der Generierung neuen Wissens in forschungsbasierten Lehr- und Lernformaten. Die in diesen aufgeworfene Frage nach der Logik der Entstehung des Neuen (Reichertz 2013) ist eng an die Frage gekoppelt, wodurch Bildungsprozesse veranlasst werden können (Koller 2012b). Im Beitrag wird die – Bildungsprozessen zugrundeliegende – "neue Erkenntnis" nach Charles Sanders Peirce als "abduktiver" Prozess gefasst, der das schlusslogische Äquivalent von Kreativität darstellt. Dieser abduktive Prozess kann Peirce zufolge durch Muße oder Druck begünstigt werden. Reichertz‘ Kritik an Peirce folgend, ist abduktive Erkenntnis aber auch und vor allem durch Kommunikation mit Peers bedingt. In diesem Kontext versteht sich der Beitrag als Bildungspotenzialanalyse universitärer medialer Lernstrukturen und bezieht sich bildungstheoretisch auf wissenssoziologische Netzwerktheorie. Es wird die These diskutiert, dass die Kultivierung von Konnektivität in universitären Lernplattformsystemen durch Implementierung konjunktiv-disjunktiver Algorithmen sowie Habitualisierung einer tentativ-explorativen Netzwerk-Sozialität auf Seite der Studierenden zur Probabilisierung abduktiver Prozesse beiträgt. Angesichts dessen sind die raumzeitlich-soziale Nonlinearität und Vernetztheit digitaler Medien (Jörissen 2016d) algorithmisch sowie habituell weiter zu erschließen und (lernkulturell) in intrauniversitären digitalen Lernplattformen zu etablieren. Die Heterogenität der Studierenden stellt dabei einen Ereignishorizont, der durch jene Vernetzungsprozesse potenziert werden kann, für Bildungsprozesse dar. Im Einzelnen zeigt der Beitrag zunächst den strukturellen Zusammenhang von "Bildung" und "Kreativität" auf (II), um anschließend die strategische Herbeiführung abduktiver Prozesse zu diskutieren (III). Abschließend wird für die Kultivierung digitaler Konnektivität zur Probabilisierung abduktiver Prozesse plädiert (IV).
description: Medienimpulse, Bd. 55 Nr. 4 (2017): 4/2017 - Kreativität/Ko-Kreativität
Ectoedemia (Ectoedemia) cerris Szocs 1978
Creators: name: van Nieukerken, Erik
name: Laštůvka, Aleš
name: Laštůvka, Zdeněk
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nepticulidae
Ectoedemia
Ectoedemia cerris

description: Ectoedemia (Ectoedemia) cerris (Zimmermann) Biology. Hostplant: Quercus cerris L. Larvae September to October. Adults fly from May to June. Distribution. Slovakia: Patočka 1980, Croatia: Laštůvka and Laštůvka 1997, detailed record given here; Greece: Laštůvka and Laštůvka 1998. Here recorded new from Turkey. Material. Croatia: 1♁, 3♀, Zadar, ex l. iv.2002, larvae 25.IX.2001 on Q. cerris, A. & Z. Laštůvka (AL). Turkey: 1♁, 2♀, Ankara, Kizilcahamam, 925 m, 18.VI.1968, M. & W. Glaser (SMNK, RMNH).
description: Published as part of van Nieukerken, Erik, Laštůvka, Aleš & Laštůvka, Zdeněk, 2010, Western Palaearctic Ectoedemia (Zimmermannia) Hering and Ectoedemia Busck s. str. (Lepidoptera: Nepticulidae): five new species and new data on distribution, hostplants and recognition, pp. 1-82 in ZooKeys 32 (32) on page 60, DOI: 10.3897/zookeys.32.282, http://zenodo.org/record/576594
description: {"references": ["Patocka J (1980) Prispevek k faunistice Lepidopter Slovenska nadceledi Nepticuloidea, Incurvarioidea e Tineoidea. Zpravy Ceskoslovenske Spolecnosti Entomologicke pri CSAV 16: 135 - 147.", "Lastuvka A, Lastuvka Z (1997) Nepticulidae Mitteleuropas. Ein illustrierter Begleiter (Lepidoptera). Konvoj, Brno, 229 pp.", "Lastuvka Z, Lastuvka A (1998) Beitrag zur Kenntnis der Nepticulidenfauna Griechenlands (Lepidoptera, Nepticulidae). Stapfia 55: 313 - 326."]}
Imaging magnetic spiral phases, skyrmion clusters, and skyrmion displacements at the surface of bulk Cu$_2$OSeO$_3$
Creators: name: Marchiori, E.
name: Romagnoli, G.
name: Schneider, L.
name: Gross, B.
name: Sahafi, P.
name: Jordan, A.
name: Budakian, R.
name: Baral, P. R.
name: Magrez, A.
name: White, J. S.
name: Poggio, M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Surfaces -- by breaking bulk symmetries, introducing roughness, or hosting defects -- can significantly influence magnetic order in magnetic materials. Determining their effect on the complex nanometer-scale phases present in certain non-centrosymmetric magnets is an outstanding problem requiring high-resolution magnetic microscopy. Here, we use scanning SQUID-on-tip microscopy to image the surface of bulk Cu$_2$OSeO$_3$ at low temperature and in a magnetic field applied along $\left\langle100\right\rangle$. Real-space maps measured as a function of applied field reveal the microscopic structure of the magnetic phases and their transitions. In low applied field, we observe a magnetic texture consistent with an in-plane stripe phase, pointing to the existence of a distinct surface state. In the low-temperature skyrmion phase, the surface is populated by clusters of disordered skyrmions, which emerge from rupturing domains of the tilted spiral phase. Furthermore, we displace individual skyrmions from their pinning sites by applying an electric potential to the scanning probe, thereby demonstrating local skyrmion control at the surface of a magnetoelectric insulator.
description: 25 pages, 13 figures, including 1 appendix and references
Origin of the Temperature Oscillation in Turbulent Thermal Convection
Creators: name: Xi, Heng-Dong
name: Zhou, Sheng-Qi
name: Zhou, Quan
name: Chan, Tak-Shing
name: Xia, Ke-Qing
Publisher: name: arXiv
Year: 2008
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We report an experimental study of the three-dimensional spatial structure of the low frequency temperature oscillations in a cylindrical Rayleigh-Bénard convection cell. It is found that thermal plumes are not emitted periodically, but randomly and continuously, from the top and bottom plates. We further found that the oscillation of the temperature field does not originate from the boundary layers, but rather is a result of the horizontal motion of the hot ascending and cold descending fluids being modulated by the twisting and sloshing motion of the bulk flow field.
description: 5 figures
Internal effective field sources for spin torque nano pillar oscillators
Creators: name: Hrkac, Gino
name: Schrefl, Thomas
name: Dean, Julian
name: Goncharov, Alexander
name: Bance, Simon
name: Suess, Dieter
name: Fidler, Josef
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this paper we numerically conduct micromagnetic modelling with an expended micromagnetic model that includes the spin torque term and an impedance model to investigate methods to replace external field sources with internal ones and to investigate its tuneability on nanopillar geometries. We present results for three methods: interlayer coupling, large perpendicular anisotropy and magnetostatic coupling. The internal field sources are evaluated as function of frequency shift with current, its dependency on temperature and are tested against analytical predictions.
description: 27 pages, 11 figures, submitted to Journal of Applied Physics
Ectoedemia (Ectoedemia) alnifoliae van Nieukerken 1985
Creators: name: van Nieukerken, Erik
name: Laštůvka, Aleš
name: Laštůvka, Zdeněk
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nepticulidae
Ectoedemia
Ectoedemia alnifoliae

description: Ectoedemia (Ectoedemia) alnifoliae Van Nieukerken Figs 73, 81, 94, 99, 103, 107, 113, 114, 118 Diagnosis. Externally Ectoedemia alnifoliae is similar to E. rufifrontella, but is overall more uniform, has fewer pale scales and is more distinctly yellow. Th e male genitalia most resemble those of the E. albifasciella complex, but the valva is more “bulging” distally; the valva reminds of E. haraldi, but that has an overall concave inner margin and a divided gnathos. Th e female genitalia differ from those of E. rufifrontella by having just two convolutions in the ductus spermathecae against ca 13–14 in rufifrontella, female genitalia hardly separable from those of haraldi. Redescription. Male (Figs 73, 113). Forewing length 2.0–3.0 mm, wingspan 4.5– 6.7 mm. Head: frontal tuft orange, collar ochreous; scape white, often with some darker scales; antenna brown, with 36–44 segments. Th orax and forewing unicolorous, covered with coarse brown scales, less dense in tornus, and few pale scales; cilia-line distinct; terminal cilia silvery white; underside brownish grey. Hindwing and cilia dark grey, hindwing with costal bristles, no hairpencil. Abdomen fuscous, anal tufts ochreous. Female (Fig. 114). Forewing length 2.2–3.0 mm, wingspan 4.9–6.6 mm. Antennae with 27–31 segments. Male genitalia (Figs 81, 103). Capsule length 230–310 µm. Vinculum slightly concave anteriorly. Tegumen distinctly produced in a hemispheric pseuduncus, with simple long setae. Gnathos with central element short, with blunt, truncate tip, not separated in two parts; lateral processes long. Valva length 175–220 µm, broad with distal process pointed and strongly curved inwards, outer margin slightly bulged, inner margin in middle distinctly convex, with long setae on dorsal surface and on caudal part, sublateral processes more than one third transtilla length. Aedeagus 250–300 µm long, with distinct cathrema, numerous very small cornuti in vesica, carinae simple, elongate. Female genitalia (Figs 94, 99, 107). T7 without row of setae. T8 with two lateral groups of scales and a few setae; posterior margin slightly indented, with rounded corners. Anal papillae with ca 15–20 setae. Vestibulum with vaginal sclerite, a prominent spiculate pouch and a group of densely packed pectinations near entrance of ductus
description: Published as part of van Nieukerken, Erik, Laštůvka, Aleš & Laštůvka, Zdeněk, 2010, Western Palaearctic Ectoedemia (Zimmermannia) Hering and Ectoedemia Busck s. str. (Lepidoptera: Nepticulidae): five new species and new data on distribution, hostplants and recognition, pp. 1-82 in ZooKeys 32 (32) on page 56, DOI: 10.3897/zookeys.32.282, http://zenodo.org/record/576594
On the Perturbative Stability of the QCD Predictions for the Ratio $R=F_L/F_T$ in Heavy-Quark Leptoproduction
Creators: name: Ivanov, N. Ya.
name: Kniehl, B. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the perturbative and parametric stability of the QCD predictions for the Callan-Gross ratio $R(x,Q^2)=F_L/F_T$ in heavy-quark leptoproduction. We consider the radiative corrections to the dominant photon-gluon fusion mechanism. In various kinematic regions, the following contributions are investigated: exact NLO results at low and moderate $Q^2\lesssim m^2$, asymptotic NLO predictions at high $Q^2\gg m^2$, and both NLO and NNLO soft-gluon (or threshold) corrections at large Bjorken $x$. Our analysis shows that large radiative corrections to the structure functions $F_T(x,Q^2)$ and $F_L(x,Q^2)$ cancel each other in their ratio $R(x,Q^2)$ with good accuracy. As a result, the NLO contributions to the Callan-Gross ratio are less than 10% in a wide region of the variables $x$ and $Q^2$. We provide compact LO predictions for $R(x,Q^2)$ in the case of low $x\ll 1$. A simple formula connecting the high-energy behavior of the Callan-Gross ratio and low-$x$ asymptotics of the gluon density is derived. It is shown that the obtained hadron-level predictions for $R(x\to 0,Q^2)$ are stable under the DGLAP evolution of the gluon distribution function. Our analytic results simplify the extraction of the structure functions $F_2^c(x,Q^2)$ and $F_2^b(x,Q^2)$ from measurements of the corresponding reduced cross sections, in particular at DESY HERA.
description: 14 pages, 6 figures, revtex4; minor corrections
Constraining the dense matter equation of state with new NICER mass-radius measurements and new chiral effective field theory inputs
Creators: name: Rutherford, Nathan
name: Mendes, Melissa
name: Svensson, Isak
name: Schwenk, Achim
name: Watts, Anna L.
name: Hebeler, Kai
name: Keller, Jonas
name: Prescod-Weinstein, Chanda
name: Choudhury, Devarshi
name: Raaijmakers, Geert
name: Salmi, Tuomo
name: Timmerman, Patrick
name: Vinciguerra, Serena
name: Guillot, Sebastien
name: Lattimer, James M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Pulse profile modeling of X-ray data from NICER is now enabling precision inference of neutron star mass and radius. Combined with nuclear physics constraints from chiral effective field theory ($χ$EFT), and masses and tidal deformabilities inferred from gravitational wave detections of binary neutron star mergers, this has lead to a steady improvement in our understanding of the dense matter equation of state (EOS). Here we consider the impact of several new results: the radius measurement for the 1.42$\,M_\odot$ pulsar PSR J0437$-$4715 presented by Choudhury et al. (2024), updates to the masses and radii of PSR J0740$+$6620 and PSR J0030$+$0451, and new $χ$EFT results for neutron star matter up to 1.5 times nuclear saturation density. Using two different high-density EOS extensions -- a piecewise-polytropic (PP) model and a model based on the speed of sound in a neutron star (CS) -- we find the radius of a 1.4$\,M_\odot$ (2.0$\,M_\odot$) neutron star to be constrained to the 95% credible ranges $12.28^{+0.50}_{-0.76}\,$km ($12.33^{+0.70}_{-1.34}\,$km) for the PP model and $12.01^{+0.56}_{-0.75}\,$km ($11.55^{+0.94}_{-1.09}\,$km) for the CS model. The maximum neutron star mass is predicted to be $2.15^{+0.14}_{-0.16}\,$$M_\odot$ and $2.08^{+0.28}_{-0.16}\,$$M_\odot$ for the PP and CS model, respectively. We explore the sensitivity of our results to different orders and different densities up to which $χ$EFT is used, and show how the astrophysical observations provide constraints for the pressure at intermediate densities. Moreover, we investigate the difference $R_{2.0} - R_{1.4}$ of the radius of 2$\,M_\odot$ and 1.4$\,M_\odot$ neutron stars within our EOS inference.
description: 23 pages, 15 figures; published version
Propagation of nonadiabatic magnetoacoustic waves in a threaded prominence with mass flows
Creators: name: Soler, R.
name: Oliver, R.
name: Ballester, J. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: High resolution observations of solar filaments suggest the presence of groups of prominence threads, i.e. the fine-structures of prominences, which oscillate coherently (in phase). In addition, mass flows along threads have been often observed. Here, we investigate the effect of mass flows on the collective fast and slow nonadiabatic magnetoacoustic wave modes supported by systems of prominence threads. Prominence fine-structures are modeled as parallel, homogeneous and infinite cylinders embedded in a coronal environment. The magnetic field is uniform and parallel to the axis of threads. Configurations of identical and nonidentical threads are both explored. We apply the T-matrix theory of acoustic scattering to obtain the oscillatory frequency and the eigenfunctions of linear magnetosonic disturbances. We find that the existence of wave modes with a collective dynamics, i.e. those that produce significant perturbations in all threads, is only possible when the Doppler-shifted individual frequencies of threads are very similar. This can be only achieved for very particular values of the plasma physical conditions and flow velocities within threads.
description: Submitted in ApJ
Ectoedemia (Ectoedemia) pseudoilicis
Creators: name: van Nieukerken, Erik
name: Laštůvka, Aleš
name: Laštůvka, Zdeněk
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nepticulidae
Ectoedemia
Ectoedemia pseudoilicis

description: Ectoedemia (Ectoedemia) pseudoilicis Z. & A. Laštůvka Figs 83, 91, 97, 101, 105 Ectoedemia (Ectoedemia) pseudoilicis Z. & A. Laštůvka, 1998: 317. Holotype ♁, Greece, Piería, Leptokariá, 25.VI.1996, A. & Z: Laštůvka (AL). Diagnosis. Resembles E. ilicis closely, but distribution is completely vicariant. E. pseudoilicis has the dorsal spot slightly beyond middle, whereas this is exactly in the middle
description: Published as part of van Nieukerken, Erik, Laštůvka, Aleš & Laštůvka, Zdeněk, 2010, Western Palaearctic Ectoedemia (Zimmermannia) Hering and Ectoedemia Busck s. str. (Lepidoptera: Nepticulidae): five new species and new data on distribution, hostplants and recognition, pp. 1-82 in ZooKeys 32 (32) on page 50, DOI: 10.3897/zookeys.32.282, http://zenodo.org/record/576594
description: {"references": ["Lastuvka Z, Lastuvka A (1998) Beitrag zur Kenntnis der Nepticulidenfauna Griechenlands (Lepidoptera, Nepticulidae). Stapfia 55: 313 - 326."]}
OnlineMEMO - WWWebgames mit eigenen Fotomotiven
Creators: name: Mattern, Klaudia
Publisher: name: Medienimpulse
Year: 2014

description: Medienimpulse, Bd. 52 Nr. 1 (2014): 1/2014 - Display/Aktuelle Dynamiken und Herausforderungen kuratorischer und vermittelnder Praxis
Okto
Creators: name: Lindner, Georg
Publisher: name: Medienimpulse
Year: 2014

description: Als kleiner Sender mit großen Ideen ging Okto am 28. November 2005 um 20 Uhr on air. Seither haben an die 350 verschiedene Gruppierungen unterschiedlichster Zusammensetzung, was Alter, Herkunft, Interessen und Vorstellungen betrifft, mit der Produktion eigener Sendereihen am Zustandekommen des vielfältigen, spannenden und immer professioneller hergestellten Programm des Sender mitgewirkt. Diese Erfolgsgeschichte macht es deutlich: Partizipation ist aus der medialen Gegenwart nicht mehr wegzudenken und stellt, das zeigen die Bemühungen vieler – auch kommerziell orientierter Anbieter – eine der größten und spannendsten Herausforderungen für die Medienproduktion der Zukunft dar.
description: Medienimpulse, Bd. 52 Nr. 1 (2014): 1/2014 - Display/Aktuelle Dynamiken und Herausforderungen kuratorischer und vermittelnder Praxis
Probing the order-to-chaos region in superdeformed 151Tb and 196Pb nuclei with continuum gamma-transitions
Creators: name: Leoni, S.
name: Benzoni, G.
name: Blasi, N.
name: Bracco, A.
name: Brambilla, S.
name: Camera, F.
name: Corsi, A.
name: Crespi, F. C. L.
name: Mason, P.
name: Million, B.
name: Montanari, D.
name: Pignanelli, M.
name: Vigezzi, E.
name: Wieland, O.
name: Matsuo, M.
name: Shimizu, Y. R.
name: Bednarczyk, P.
name: Castoldi, M.
name: Curien, D.
name: Duchene, G.
name: Herskind, B.
name: Kmiecik, M.
name: Maj, A.
name: Meczynski, W.
name: Robin, J.
name: Styczen, J.
name: Zieblinski, M.
name: Zuber, K.
name: Zucchiatti, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The gamma-decay associated with the warm rotation of the superdeformed (SD) nuclei 151Tb and 196Pb has been measured with the EUROBALL IV array. Several independent quantities provide a stringent test of the population and decay dynamics in the SD well. A Monte Carlo simulation of the gamma-decay based on microscopic calculations gives remarkable agreement with the data only assuming a large enhancement of the B(E1) strength at low excitation energy, which may be related to the evidence for octupole vibrations in both mass regions.
Superconducting states in metals with toroidal ordering
Creators: name: Mineev, V. P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The paper presents a theory of superconducting states in metals with toroidal symmetry.
description: 5 pages,2 figures
Clover improvement for stout-smeared 2+1 flavour SLiNC fermions: perturbative results
Creators: name: Horsley, R.
name: Rakow, P. E. L.
name: Perlt, H.
name: Schierholz, G.
name: Schiller, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: For the Stout Link Non-perturbative Clover (SLiNC) action we determine in one-loop lattice perturbation theory the critical hopping parameter $κ_c$ and the clover parameter $c_{SW}$ which is needed for $\mathcal{O}(a)$ improvement. Performing this calculation off-shell we are also able to compute the non gauge invariant quark field improvement coefficient $c_{NGI}$. Additionally, we present first results for the renormalization factors of the scalar, pseudoscalar, vector and axial vector currents. We discuss mean field improvement for the SLiNC action.
description: 7 pages, talk presented at The XXVI International Symposium on Lattice Field Theory, July 14 - 19, 2008, Williamsburg, Virginia, USA
The ESO SupJup Survey II: The 12C/13C ratios of three young brown dwarfs with CRIRES$^+$
Creators: name: Picos, D. González
name: Snellen, I. A. G.
name: de Regt, S.
name: Landman, R.
name: Zhang, Y.
name: Gandhi, S.
name: Ginski, C.
name: Kesseli, A. Y.
name: Mollière, P.
name: Stolker, T.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Young brown dwarfs exhibit atmospheric characteristics similar to those of super-Jupiters, providing a unique opportunity to study planetary atmospheres. The ESO SupJup Survey, utilizing CRIRES$^+$ on the Very Large Telescope, aims to assess the role of $^{12}$C/$^{13}$C as a formation tracer. We present observations of three young brown dwarfs: 2MASS J12003792-7845082, TWA 28, and 2MASS J08561384-1342242, with the goal of constraining their chemical compositions, thermal profiles, surface gravities, spin rotations, and $^{12}$C/$^{13}$C. Atmospheric retrievals of CRIRES$^+$ K-band spectra were conducted using the radiative transfer code petitRADTRANS coupled with the Bayesian inference algorithm MultiNest, resulting in a detailed characterization of the atmospheres of these objects. We report the volume mixing ratios of main molecular and atomic species, including the novel detection of hydrogen fluoride (HF) in a brown dwarf's atmosphere, and determine $^{12}$C/$^{13}$C values of $81^{+28}_{-19}$ and $79^{+20}_{-14}$ in the atmospheres of TWA 28 and J0856, respectively, with strong significance ($>3σ$). Tentative evidence ($\sim 2σ$) of $^{13}$C in J1200 was found, with $^{12}$C/$^{13}$C = $114^{+69}_{-33}$, along with $^{18}$O detected at moderate significance in J0856 (3.3$σ$) and TWA 28 (2.1$σ$). The retrieved thermal profiles indicate hot atmospheres (2300-2600 K) with low surface gravities and slow spins, consistent with young objects. The consistent carbon isotope ratios among the three objects, showing no significant deviation from the local ISM, suggest a fragmentation-based formation mechanism similar to star formation. The tentative detection of $^{18}$O in two objects highlights the potential of high-resolution spectroscopy to probe additional isotope ratios, such as $^{16}$O/$^{18}$O, in the atmospheres of brown dwarfs and super-Jupiters.
description: Published in A&A Volume 689, September 2024
Zur EU-Konsultation Urheberrecht: Es betrifft uns alle
Creators: name: Mathys-Parnreiter, Simone
Publisher: name: Medienimpulse
Year: 2014

description: Von Dezember 2013 bis März 2014 lud die EU dazu ein, zu verschiedenen urheberrechtlichen Fragen Stellung zu nehmen. In einer Gruppe von KollegInnen der Initiative Medienbildung Jetzt! haben wir einiges daran gesetzt, die für medienpädagogisches Arbeiten relevanten Fragen herauszuarbeiten und Positionen zu formulieren, wie ein angemessener urheberrechtlicher Rahmen für unserer Arbeit aussehen könnte. Das Resultat kann auf www.medienbildungjetzt.at nachgelesen werden.
description: Medienimpulse, Bd. 52 Nr. 1 (2014): 1/2014 - Display/Aktuelle Dynamiken und Herausforderungen kuratorischer und vermittelnder Praxis
Gravitational ringdown in the Minimal Theory of Massive Gravity
Creators: name: Roussille, Hugo
name: Larrouturou, François
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This work focuses on gravitational perturbations of black holes in the self-accelerating branch of the Minimal Theory of Massive Gravity (MTMG). This theory is a healthy extension of GR which displays the feature of massive tensor modes, without additional polarizations, strong-coupling issues nor requiring screening mechanisms. We proceed by implementing a newly developed technique that, instead of considering a second-order Schrödinger-like reformulation of perturbation equations, relies on a first-order formulation and solves it asymptotically, before numerically deriving the quasi-normal modes. We find that the black holes of MTMG are stable, and that their quasi-normal modes smoothly differ from the GR ones, for non-vanishing values of the graviton mass. This work hence confirms the fact that GR is a smooth limit of MTMG, and opens the exciting possibility of a clean test, performed for instance by the LISA detector.
description: 17+10 pages, 2 figures. Version accepted for publication in PRD
Kinder machen Literatur-Radio
Creators: name: Mildner (Sontag), Katharina
Publisher: name: Medienimpulse
Year: 2014

description: Medienimpulse, Bd. 52 Nr. 1 (2014): 1/2014 - Display/Aktuelle Dynamiken und Herausforderungen kuratorischer und vermittelnder Praxis
Verhaltensweisen und Medien
Creators: name: Dopplinger, Ursula
Publisher: name: Medienimpulse
Year: 2014

description: Stellt man die Frage, wie sich die Habitusformen jener Personen, die direkt oder indirekt im österreichische Schulwesen involviert sind, durch den Gebrauch von (neuen) Medien geändert haben, müssen im Vorfeld einige theoretische und epistemologische Aspekte aufgezeigt werden. Diese bilden die Grundlage, um darstellen zu können, was für eine zielführende Umsetzung eines Bildungsprozesses in Hinblick auf die Mediendidaktik und der daraus resultierenden Medienkompetenz der Schüler/innen in Österreich notwendig ist. Mit anderen Worten wird der Frage nachgegangen, welche Rolle der Mediale Habitus in den sozialen Feldern des Unterrichts spielt? Normen, die dabei zum Tragen kommen und welche Prozesse durch den Einsatz von neuen Medien im Unterricht hervorgerufenen werden, veranschaulicht dieser Artikel.
description: Medienimpulse, Bd. 52 Nr. 1 (2014): 1/2014 - Display/Aktuelle Dynamiken und Herausforderungen kuratorischer und vermittelnder Praxis
title: Tag des Baubetriebs 2008 - Tagungsbeiträge: Auf dem Weg zum digitalen (Bau-)haus-Bau : Forschungsworkshop zur Simulation von Bauprozessen
Creators: name: Bauhaus-Universität Weimar. Professur Baubetrieb Und Bauverfahren
Publisher: name: Universitätsverlag
Year: 2008
Subjects: subject: Bauplanung
subject: Bauprozess
subject: 620

description: Am 31. März 2008 veranstalteten die Professur Baubetrieb und Bauverfahren und die Juniorprofessur Theoretische Methoden des Projektmanagements der Bauhaus-Universität Weimar einen ganztägigen Workshop mit dem Titel: „Auf dem Weg zum digitalen (Bau-)haus-Bau“. Damit sollte die im Herbst 2007 an der Universität Kassel unter dem Titel „Simulation in der Bauwirtschaft“ begonnene Reihe von Workshops eine Fortsetzung finden. Der Schwerpunkt wurde dieses Mal auf die Simulation von Bauprozessen gesetzt – Simulation mit dem Ziel, Arbeitsvorbereitung, Bauausführung und Baustellencontrolling digital zu unterstützen.
description: Schriften der Professur Baubetrieb und Bauverfahren, vol. 17
Quantum chaos in disordered graphene
Creators: name: Amanatidis, I.
name: Evangelou, S. N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We have studied numerically the statistics for electronic states (level-spacings and participation ratios) from disordered graphene of finite size, described by the aspect ratio $W/L$ and various geometries, including finite or torroidal, chiral or achiral carbon nanotubes. Quantum chaotic Wigner energy level-spacing distribution is found for weak disorder, even infinitesimally small disorder for wide and short samples ($W/L>>1$), while for strong disorder Anderson localization with Poisson level-statistics always sets in. Although pure graphene near the Dirac point corresponds to integrable ballistic statistics chaotic diffusive behavior is more common for realistic samples.
description: 5 pages 3 figures. (for high resolution figures send an e-mail to i.amanatidis@lancs.ac.uk)
Dunkl-Schrödinger equation with time-dependent harmonic oscillator potential
Creators: name: Benchikha, A.
name: Khantoul, B.
name: Hamil, B.
name: Lütfüoğlu, B. C.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, using the Lewis-Riesenfeld method, we determine the explicit form of the wavefunctions of one- and three-dimensional harmonic oscillators with time-dependent mass and frequency within the framework of the Dunkl derivative, which leads to the derivation of a parity-dependent of the invariant and auxiliary equation.
description: 11 pages
Rezension: Daten, Drohnen, Disziplin. Ein Gespräch über flüchtige Überwachung.
Creators: name: Ringhof, Valeska
Publisher: name: Medienimpulse
Year: 2014

description: Medienimpulse, Bd. 52 Nr. 1 (2014): 1/2014 - Display/Aktuelle Dynamiken und Herausforderungen kuratorischer und vermittelnder Praxis
Reconciling Rewards with Predictive State Representations
Creators: name: Baisero, Andrea
name: Amato, Christopher
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Predictive state representations (PSRs) are models of controlled non-Markov observation sequences which exhibit the same generative process governing POMDP observations without relying on an underlying latent state. In that respect, a PSR is indistinguishable from the corresponding POMDP. However, PSRs notoriously ignore the notion of rewards, which undermines the general utility of PSR models for control, planning, or reinforcement learning. Therefore, we describe a sufficient and necessary accuracy condition which determines whether a PSR is able to accurately model POMDP rewards, we show that rewards can be approximated even when the accuracy condition is not satisfied, and we find that a non-trivial number of POMDPs taken from a well-known third-party repository do not satisfy the accuracy condition. We propose reward-predictive state representations (R-PSRs), a generalization of PSRs which accurately models both observations and rewards, and develop value iteration for R-PSRs. We show that there is a mismatch between optimal POMDP policies and the optimal PSR policies derived from approximate rewards. On the other hand, optimal R-PSR policies perfectly match optimal POMDP policies, reconfirming R-PSRs as accurate state-less generative models of observations and rewards.
description: IJCAI 2021