cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Patterns of subnet usage reveal distinct scales of regulation in the transcriptional regulatory network of Escherichia coli
Creators: name: Marr, Carsten
name: Theis, Fabian J.
name: Liebovitch, Larry S.
name: Hütt, Marc-Thorsten
Publisher: name: arXiv
Year: 2010
Subjects: subject: Molecular Networks (q-bio.MN)
subject: FOS: Biological sciences

description: The set of regulatory interactions between genes, mediated by transcription factors, forms a species' transcriptional regulatory network (TRN). By comparing this network with measured gene expression data one can identify functional properties of the TRN and gain general insight into transcriptional control. We define the subnet of a node as the subgraph consisting of all nodes topologically downstream of the node, including itself. Using a large set of microarray expression data of the bacterium Escherichia coli, we find that the gene expression in different subnets exhibits a structured pattern in response to environmental changes and genotypic mutation. Subnets with less changes in their expression pattern have a higher fraction of feed-forward loop motifs and a lower fraction of small RNA targets within them. Our study implies that the TRN consists of several scales of regulatory organization: 1) subnets with more varying gene expression controlled by both transcription factors and post-transcriptional RNA regulation, and 2) subnets with less varying gene expression having more feed-forward loops and less post-transcriptional RNA regulation.
description: 14 pages, 8 figures, to be published in PLoS Computational Biology
Monte Carlo model of electron energy degradation in a CO2 atmosphere
Creators: name: Bhardwaj, Anil
name: Jain, Sonal Kumar
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: A Monte Carlo model has been developed to study the degradation of <1000 eV electrons in an atmosphere of CO2, which is one of the most abundant species in Mars' and Venus' atmospheres. The e-CO2 cross sections are presented in an assembled set along with their analytical representations. Monte Carlo simulations are carried out at several energies to calculate the "yield spectra", which embodied all the information related to electron degradation process and can be used to calculate "yield" (or population) for any inelastic process. The numerical yield spectra have been fitted analytically resulting in an analytical yield spectra (AYS). We have calculated the mean energy per ion pair and efficiencies for various inelastic processes, including the double and dissociative double ionization of \car\ and negative ion formation. The energy distribution of the secondary electrons produced per incident electron is also presented at few incident energies. The mean energy per ion pair for CO2 is 37.5 (35.8) eV at 200 (1000) eV, compared to experimental value 32.7 eV at high energies. Ionization is the dominant loss process at energies above 50 eV with contribution of ~50%. Among the excitation processes, 13.6 eV and 12.4 eV states are the dominant loss processes consuming ~28% energy above 200 eV. Around and below ionization threshold, 13.6 eV, 12.4 eV, and 11.1 eV, followed by 8.6 eV and 9.3 eV excitation states are important loss processes, while below 10 eV vibrational excitation dominates.
description: 31 pages, 13 figures
Towards a Critical Open-Source Software Database
Creators: name: Dam, Tobias
name: Klausner, Lukas Daniel
name: Neumaier, Sebastian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Open-source software (OSS) plays a vital role in the modern software ecosystem. However, the maintenance and sustainability of OSS projects can be challenging. In this paper, we present the CrOSSD project, which aims to build a database of OSS projects and measure their current project "health" status. In the project, we will use both quantitative and qualitative metrics to evaluate the health of OSS projects. The quantitative metrics will be gathered through automated crawling of meta information such as the number of contributors, commits and lines of code. Qualitative metrics will be gathered for selected "critical" projects through manual analysis and automated tools, including aspects such as sustainability, funding, community engagement and adherence to security policies. The results of the analysis will be presented on a user-friendly web platform, which will allow users to view the health of individual OSS projects as well as the overall health of the OSS ecosystem. With this approach, the CrOSSD project provides a comprehensive and up-to-date view of the health of OSS projects, making it easier for developers, maintainers and other stakeholders to understand the health of OSS projects and make informed decisions about their use and maintenance.
description: 4 pages, 1 figure
Phonon Calculations in Cubic and Tetragonal Phases of SrTiO3: a Comparative LCAO and Plane Wave Study
Creators: name: Evarestov, Robert A.
name: Blokhin, Evgeny
name: Gryaznov, Denis
name: Kotomin, Eugene A.
name: Maier, Joachim
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The atomic, electronic structure and phonon frequencies have been calculated in a cubic and low-temperature tetragonal SrTiO3 phases at the ab initio level. We demonstrate that the use of hybrid exchange-correlation PBE0 functional gives the best agreement with experimental data. The results for the standard PBE and hybrid PBE0 are compared for the two types of basis sets: a linear combination of atomic orbitals (LCAO, CRYSTAL09 computer code) and plane waves (PW, VASP 5.2 code). Relation between cubic and tetragonal antiferrodistortive (AFD) phases and the relevant AFD phase transition observed at 110 K is discussed in terms of group theory and illustrated with analysis of calculated soft mode frequences at the Γ and R points in the Brillouin zone. Based on phonon calculations, the temperature dependences of the Helmholtz free energy and heat capacity are in a good agreement with experiment.
description: 24 pages, 8 tables, 4 figures
Sul nuovo testimone frammentario del «Roman de Tristan» in prosa dell’Archivio dei Luoghi Pii Elemosinieri di Milano
Creators: name: Premi, Nicolò
Publisher: name: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento
Year: 2020

description: La nota offre alcune osservazioni paleografiche, filologiche e linguistiche su alcuni nuovi frammenti del Tristan en prose rinvenuti nell’Archivio dei luoghi pii elemosinieri di Milano (Carità di Porta Nuova, Frammenti dei Libri mastri del 1523 e 1524) e pubblicati di recente da Frej Moretti.
description: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento, V. 8 N. 2 (2020)
Libri ricevuti
Creators: name: Redazione, La
Publisher: name: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento
Year: 2020

description: -
description: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento, V. 8 N. 2 (2020)
title: Model predictive control for compliant feed drives with offset-free tracking behavior
Creators: name: Leipe, Valentin
name: Hinze, Christoph
name: Lechler, Armin
name: Verl, Alexander
Publisher: name: Universität Stuttgart
Year: 2023
Subjects: subject: 620
subject: 670

description: Industrial machine tool feed drives are predominantly controlled by cascade control due to their low tuning complexity and inherent robustness. However, the cascaded structure requires the inner cascades to have higher dynamics than the outer cascades, which limits the achievable dynamic accuracy. Direct control approaches, which substitute the position and velocity cascade, offer the potential to utilize the unused potential. A promising approach is model predictive control (MPC), which optimizes the manipulated variable with a plant model along a prediction horizon. However, model uncertainties between the nominal model and the real plant lead to tracking errors. Therefore, this paper presents, a linear MPC (LMPC) and an adaptive MPC (AMPC) with an additional integral action to robustly compensate for model mismatches. Both controllers use a compliant model, are real-time capable with a sample rate of 2kHzand consider state and input space constraints. The AMPC accounts for position-varying stiffness and friction. The controllers are experimentally compared with classical P-PI cascaded control on a ball screw drive. They show a tracking error reduction of 37%(LMPC) and 44%(AMPC) during a high speed motion profile and an increase in bandwidth of 180%(LMPC) and 184%(AMPC), resulting in significantly improved dynamic accuracy.
Massless interacting quantum fields in deSitter spacetime
Creators: name: Hollands, Stefan
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 81T20, 81Q30

description: We generalize key aspects of arXiv:1010.5367 (and also arXiv:1010.5327) to the case of {\em massless} $λϕ^{2n}$ quantum field theory on deSitter spacetime. As in that paper, our key objective is to derive a suitable "Mellin-Barnes-type" representation of deSitter correlation functions in a deSitter-invariant state, which holds to arbitrary orders in perturbation theory, and which incorporates renormalization. The representation is suitable for the study of large distance/time properties of correlation functions. It is arrived at via an analytic continuation from the corresponding objects on the sphere, and, as in the massive case, relies on the use of graph-polynomials and their properties, as well as other tools. However, the perturbation expansion is organized somewhat differently in the massless case, due to the well-known subtleties associated with the "zero-mode" of the quantum field. In particular, the correlation functions do not possess a well-defined limit as the self-coupling constant of the field goes to zero, reflecting the well-known non-existence of a deSitter invariant state in the free massless scalar theory. We establish that generic correlation functions cannot grow more than polynomially in proper time for large time-like separations of the points. Our results thus leave open the possibility of quantum induced IR-instabilities of deSitter spacetime on very large time-scales.
description: 40 pages, several figures, v2: added references, more discussion in app.C and in proof of thm.1, other minor changes
Notizie sugli autori
Creators: name: Redazione, La
Publisher: name: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento
Year: 2020

description: -
description: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento, V. 8 N. 2 (2020)
A conformal invariant growth model
Creators: name: Alcaraz, Francisco C.
name: Rittenberg, Vladimir
Publisher: name: arXiv
Year: 2010
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present a one-parameter extension of the raise and peel one-dimensional growth model. The model is defined in the configuration space of Dyck (RSOS) paths. Tiles from a rarefied gas hit the interface and change its shape. The adsorption rates are local but the desorption rates are non-local, they depend not only on the cluster hit by the tile but also on the total number of peaks (local maxima) belonging to all the clusters of the configuration. The domain of the parameter is determined by the condition that the rates are non-negative. In the finite-size scaling limit, the model is conformal invariant in the whole open domain. The parameter appears in the sound velocity only. At the boundary of the domain, the stationary state is an adsorbing state and conformal invariance is lost. The model allows to check the universality of nonlocal observables in the raise and peel model. An example is given.
description: 11 pages and 8 figures
Multi-layer study of wave propagation in sunspots
Creators: name: Felipe, T.
name: Khomenko, E.
name: Collados, M.
name: Beck, C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We analyze the propagation of waves in sunspots from the photosphere to the chromosphere using time series of co-spatial Ca II H intensity spectra (including its line blends) and polarimetric spectra of Si I 10827 and the He I 10830 multiplet. From the Doppler shifts of these lines we retrieve the variation of the velocity along the line-of-sight at several heights. Phase spectra are used to obtain the relation between the oscillatory signals. Our analysis reveals standing waves at frequencies lower than 4 mHz and a continuous propagation of waves at higher frequencies, which steepen into shocks in the chromosphere when approaching the formation height of the Ca II H core. The observed non-linearities are weaker in Ca II H than in He I lines. Our analysis suggests that the Ca II H core forms at a lower height than the He I 10830 line: a time delay of about 20 s is measured between the Doppler signal detected at both wavelengths. We fit a model of linear slow magnetoacoustic wave propagation in a stratified atmosphere with radiative losses according to Newton's cooling law to the phase spectra and derive the difference in the formation height of the spectral lines. We show that the linear model describes well the wave propagation up to the formation height of Ca II H, where non-linearities start to become very important.
description: Accepted by The Astrophysical Journal
Low Frequency Asymptotics for Time-Harmonic Generalized Maxwell Equations in Nonsmooth Exterior Domains
Creators: name: Pauly, Dirk
Publisher: name: arXiv
Year: 2011
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35Q60, 78A25, 78A30

description: We discuss the radiation problem of total reflection for a time-harmonic generalized Maxwell system in a non-smooth exterior domain with non-smooth inhomogeneous, anisotropic coefficients converging near infinity with a certain rate towards the identity. By means of the limiting absorption principle, a Fredholm alternative holds true and the eigensolutions decay polynomially resp. exponentially at infinity. We prove that the corresponding eigenvalues do not accumulate even at zero. Next, we show the convergence of the time-harmonic solutions to a solution of an electro-magneto static Maxwell system as the frequency tends to zero. Finally we are able to generalize these results easily to the corresponding Maxwell system with inhomogeneous boundary data. This paper is thought of as the first and introductory one in a series of three papers, which will completely discuss the low frequency behavior of the solutions of the time-harmonic Maxwell equations.
description: Key Words: Maxwell's equations, exterior boundary value problems, radiating solutions, polynomial and exponential decay of eigensolutions, variable coefficients, electro-magneto static, electro-magnetic theory, low frequency asymptotics, inhomogeneous boundary data
Tasarımda Farklılaşma: Differentiation in Design
Creators: name: Vatan, Ceyda
name: Alppay, Cem
Publisher: name: Zenodo
Year: 2019
Subjects: emotional experience
culture
differentiation
design

description: It can be observed in industrial design practice that products are mostly designed according to practical benefits. In this process, concepts upon which design is based are held mostly in terms of practical benefit, in parallel with positivism that leads industrial production philosophy.

Today, practical needs of man are satisfied to a great extent by advanced technology. Products designed in industrial practice satisfy physical needs, while emotional needs of users are considered only in terms of aesthetics, ignoring other dimensions of emotional experience.

In globalizing world, ‘product as a promise of experience’ constitute the concept of design, which is of increasing importance. While our daily lives are increasingly dominated by designed products, emotional experience also has a significant role in the differentiation of products.

In this study, industrial design will be examined with the dimension of emotional experience besides practical aspect. The subject will be exemplified with experiences of an education project. Experiences in ‘Proje Milano’, a project studio planned on the assumption that emphasis on emotional experiences in design process can pave the way for differentiation in design, will be dicussed. The role of cultural differences in creating difference and innovation in international platforms will be discussed and observations of encounters of emotional-experience- based design with its own culture and with other cultures will be presented. This presentation will include the discussion on effects of cultural accumulation on design process.
title: Linearly combined transition model based on empirical spot growth correlations
Creators: name: Karsch, Maximilian
name: Van Den Eynde, Jeroen
name: Steelant, Johan
Publisher: name: Universität Stuttgart
Year: 2023
Subjects: subject: 620

description: The transition from laminar to turbulent flow in a hypersonic boundary layer is modeled using an intermittency-based linear combination approach. A simplified transition model like this enables a quick assessment of aero-thermal loads and the overall flight efficiency of high-speed vehicles during the initial design phase by weighting purely laminar and turbulent flow results on the basis of an empirically calculated intermittency. The transition model presented within this work includes an empirical model to account for Mach number, Reynolds number, wall temperature and pressure gradient effects on turbulent spot growth based on available turbulent spot studies in the literature. A validation of the transition model is carried out for a number of different test cases and a methodology to extend the model to generic geometries is presented to enable a more general application.
Job files for automated phenol-chloroform extraction (RBI LabDroid Maholo)
Creators: name: Liu, Andrew W.
name: Plessy, Charles
Publisher: name: Zenodo
Year: 2022
Subjects: automation
organic extraction
DNA extraction
NGS methods
robotics

description: Job files for Robotic Biology Institute's BioPortal GUI software to run RBI LabDroid Maholo for organic extractions of genomic DNA. Manipulator assisted tube inversion of 2 ml Eppendorf micro centrifuge tubes.
Miniature multiphoton endoscopy using frequency-doubled Er-doped fiber laser
Creators: name: Huang, Lin
Publisher: name: University of British Columbia
Year: 2019

description: Multiphoton microscopy (MPM) is a non-invasive, high-resolution imaging tool for visualizing tissues and organs. MPM uses femtosecond laser pulses to excite nonlinear signals from tissues and is capable of inherent optical sectioning. MPM systems have been mostly implemented using free-space optics and microscope platforms. For clinical applications, a compact fiber-optic MPM endoscopy with a miniature probe is needed for in vivo imaging. In this thesis, I explore the potential of applying femtosecond fiber laser in MPM endoscopy. Femtosecond fiber laser has the advantages of compactness, robustness, and direct fiber-coupling. Challenges in developing the MPM endoscopy includes optimization of the laser source for highly efficient MPM excitation, managing femtosecond pulse delivery through optical fiber, and designing a miniature scanning probe. In this thesis, systematic design, optimization, and application of a miniature MPM endoscopy based on the frequency-doubled Er-doped fiber laser are conducted, and the challenges are addressed. An Er-doped fiber laser operating at 1580 nm wavelength is developed and then frequency-doubled into ~790 nm wavelength to excite intrinsic two-photon excitation fluorescence signal from tissues. The frequency-doubling unit is integrated into the distal end of the miniature probe which is implemented by a miniature scanner and objective. The Er-doped fiber laser is directly fiber-coupled into the probe, making the system compact and portable. Imaging speed of MPM endoscopy is critical for clinical applications. To increase the imaging speed, the laser is optimized to shorten its pulsewidth to 80 fs for increasing the multiphoton excitation efficiency. All-fiber dispersion compensation and pulse compression by single mode fiber are conducted. A fast MPM imaging speed at 4 frames/s is achieved. Furthermore, the MPM endoscopy is applied for simultaneous two-photon and three-photon imaging. The fundamental laser pulse at 1580 nm and its frequency-doubled pulse at 790 nm are used as a dual-wavelength excitation source. Simultaneous imaging of two-photon excitation fluorescence, second harmonic generation, and third harmonic generation are achieved to acquire complementary information from tissues. Label-free multimodal imaging is demonstrated for biological tissues. Through this study, the miniature MPM endoscopy using frequency-doubled Er-doped fiber laser is shown to have great potential for clinical applications.
On the Representability of Line Graphs
Creators: name: Kitaev, Sergey
name: Salimov, Pavel
name: Severs, Christopher
name: Ulfarsson, Henning
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 68R15

description: A graph G=(V,E) is representable if there exists a word W over the alphabet V such that letters x and y alternate in W if and only if (x,y) is in E for each x not equal to y. The motivation to study representable graphs came from algebra, but this subject is interesting from graph theoretical, computer science, and combinatorics on words points of view. In this paper, we prove that for n greater than 3, the line graph of an n-wheel is non-representable. This not only provides a new construction of non-representable graphs, but also answers an open question on representability of the line graph of the 5-wheel, the minimal non-representable graph. Moreover, we show that for n greater than 4, the line graph of the complete graph is also non-representable. We then use these facts to prove that given a graph G which is not a cycle, a path or a claw graph, the graph obtained by taking the line graph of G k-times is guaranteed to be non-representable for k greater than 3.
description: 10 pages, 5 figures
Diamanti, magneti e altre noterelle di mineralogia nella lirica medievale
Creators: name: Gatti, Luca
Publisher: name: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento
Year: 2020

description: Il saggio propone una campionatura di immagini mineralogiche nella lirica romanza medievale: si ritorna, in particolare, sull’immagine del diamante. Almeno per taluni casi, pare lecito supporre la mediazione di una fonte letteraria; per talaltri, invece, è possibile leggere una rifunzionalizzazione, più o meno marcata, in seno all’ideologia della fin’amor.
description: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento, V. 8 N. 2 (2020)
title: Do women outperform men? Gender differences in participation and performance in STEM and non-STEM university subjects of gender dominance
Creators: name: Osterburg, Mara
name: Bauer, Victoria A.
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2024
Subjects: subject: higher education
subject: student behaviour
subject: gender gap
subject: engineering education
subject: social sciences
subject: 300 | Sozialwissenschaften, Soziologie, Anthropologie

description: Women are underrepresented in STEM (science, technology, engineering, and mathematics) degrees in higher education (HE), despite outperforming at other levels of education (Kriesi & Imdorf, 2019). Previous research explains this in terms of stereotype threat and gender dominance (Koch et al., 2022; Hill et al., 2010). Inconsistent findings of a male advantage (Matz et al., 2017) highlight the need for a more detailed examination of student behavior. Our study addresses the research gap on gender differences in performance and participation by examining variations in gender differences in student performance and participation at the module level from two perspectives: 1) between STEM and non-STEM programs, and 2) between female- and male-dominated programs. We use administrative datasets from three undergraduate programs at a large German university. The total of 5,853 cases consist of the 2016-2021 program cohorts in mechanical engineering (male-dominated STEM), political science (male-dominated non-STEM), and sociology (female-dominated non-STEM). Women tend to outperform men in terms of grades, regardless of whether the program is in a STEM or gender-dominated field. The same is true for module exam participation rates in non-STEM programs, while in male-dominated STEM fields they may be outperformed by men, who on the other hand have to retake exams more often than women in these fields. Our findings suggest that when studying gender differences in higher education, it is important to look at detailed behaviors rather than focusing only on overall student success. The study also highlights the importance of comparing not only STEM and non-STEM fields, but also gender dominance, as we see nuanced cross-level effects.
Le rubriche di genere nei canzonieri della lirica galloromanza medievale
Creators: name: Rozza, Silvia
Publisher: name: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento
Year: 2020

description: Attraverso l’analisi dei canzonieri della tradizione lirica galloromanza, il contributo mette in risalto la presenza di rubriche esplicitamente dedicate a fornire informazioni relative al genere dei componimenti a cui si accompagnano. Si fornisce un’analisi tipologica di tali paratesti, allo scopo di porne in evidenza la varietà di funzioni e la rilevanza ai fini di una migliore conoscenza della percezione antica nei confronti dei generi della lirica medievale.
description: Carte Romanze. Rivista di Filologia e Linguistica Romanze dalle Origini al Rinascimento, V. 8 N. 2 (2020)
The fragmentation of expanding shells II: Thickness matters
Creators: name: Wunsch, Richard
name: Dale, James E.
name: Palous, Jan
name: Whitworth, Anthony P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study analytically the development of gravitational instability in an expanding shell having finite thickness. We consider three models for the radial density profile of the shell: (i) an analytic uniform-density model, (ii) a semi-analytic model obtained by numerical solution of the hydrostatic equilibrium equation, and (iii) a 3D hydrodynamic simulation. We show that all three profiles are in close agreement, and this allows us to use the first model to describe fragments in the radial direction of the shell. We then use non-linear equations describing the time-evolution of a uniform oblate spheroid to derive the growth rates of shell fragments having different sizes. This yields a dispersion relation which depends on the shell thickness, and hence on the pressure confining the shell. We compare this dispersion relation with the dispersion relation obtained using the standard thin-shell analysis, and show that, if the confining pressure is low, only large fragments are unstable. On the other hand, if the confining pressure is high, fragments smaller than predicted by the thin-shell analysis become unstable. Finally, we compare the new dispersion relation with the results of 3D hydrodynamic simulations, and show that the two are in good agreement.
description: 9 pages, 9 figures, accepted by MNRAS
Open Issue
Creators: name: Borsa, Paolo
name: Høgel, Christian
name: Mortensen, Lars Boje
name: Tyler, Elizabeth
name: Ravenhall, Henry
name: Jensen, Kristian
name: Gómez-Bravo, Ana M.
Publisher: name: Interfaces: A Journal of Medieval European Literatures
Year: 2020

description: Issue No. 7 is the third open issue of Interfaces: A Journal of Medieval European Literatures. It contains contributions by Henry Ravenhall, Kristian Jensen, and Ana M. Gómez-Bravo. Cover image: Marianne Therese Grønnow, Light. Dusk. Darkness, 2012, acrylic on canvas, 145 x 225 cm – Photograph by Dorte Krogh – By kind permission of the Artist – mariannegroennow.com
description: Interfaces: A Journal of Medieval European Literatures, N. 7 (2020): Open Issue
The Casimir force of Quantum Spring in the (D+1)-dimensional spacetime
Creators: name: Zhai, Xiang-hua
name: Li, Xin-zhou
name: Feng, Chao-Jun
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Casimir effect for a massless scalar field on the helix boundary condition which is named as quantum spring is studied in our recent paper\cite{Feng}. In this paper, the Casimir effect of the quantum spring is investigated in $(D+1)$-dimensional spacetime for the massless and massive scalar fields by using the zeta function techniques. We obtain the exact results of the Casimir energy and Casimir force for any $D$, which indicate a $Z_2$ symmetry of the two space dimensions. The Casimir energy and Casimir force have different expressions for odd and even dimensional space in the massless case but in both cases the force is attractive. In the case of odd-dimensional space, the Casimir energy density can be expressed by the Bernoulli numbers, while in the even case it can be expressed by the $ζ$-function. And we also show that the Casimir force has a maximum value which depends on the spacetime dimensions. In particular, for a massive scalar field, we found that the Casimir force varies as the mass of the field changes.
description: 9 pages, 5 figures, v2, massive case added, refs. added
Selected topics on Hadrons in Nuclei
Creators: name: Oset, E.
name: Kaskulov, M.
name: Hernandez, E.
name: Ramos, A.
name: Magas, V. K.
name: Yamagata-Sekihara, J.
name: Hirenzaki, S.
name: Gamermann, D.
name: Molina, R.
name: Tolos, L.
name: Roca, L.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this talk we report on selected topics on hadrons in nuclei. The first topic is the renormalization of the width of the $Λ(1520)$ in a nuclear medium. This is followed by a short update of the situation of the $ω$ in the medium. The investigation of the properties of $\bar{K}$ in the nuclear medium from the study of the $(K_{flight},p)$ reaction is also addressed, as well as properties of X,Y,Z charmed and hidden charm resonances in a nuclear medium. Finally we address the novel issue of multimeson states.
description: Talk at the International Nuclear Physics Conference, Vancouver, July 2010
Stygia Latreille 1802
Creators: name: Alipanah, Helen
name: Yakovlev, Roman
name: Falsafi, Hossein
name: Witt, Thomas
name: Saldaitis, Aidas
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Cossidae
Stygia

description: Genus Stygia Latreille, [1802]
Latreille, [1802], in: Sonnini, Hist. Nat. Crust. Insects 3: 403.
 Type species: Stygia australis Latreille, 1804.
Synonymy:
 = Gryphia Meigen, 1830, Syst. Beschr. Eur. Schmett. 2: 190.
 Type species: Stygia australis Latreille, 1804.
 = Hyalida Sodoffsky, 1837, Bull. Soc. Imp. Nat. Moscou 6: 83.
 Type species: Stygia australis Latreille, 1804.
description: Published as part of Alipanah, Helen, Yakovlev, Roman, Falsafi, Hossein, Witt, Thomas & Saldaitis, Aidas, 2021, 5062, pp. 1-100 in Zootaxa 5062 (1) on page 10, DOI: 10.11646/zootaxa.5062.1.1, http://zenodo.org/record/5808035
Direct observation of paramagnons in palladium
Creators: name: Doubble, R.
name: Hayden, S. M.
name: Dai, Pengcheng
name: Mook, H. A.
name: Thompson, J. R.
name: Frost, C. D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report an inelastic neutron scattering study of the spin fluctuations in the nearly-ferromagnetic element palladium. Dispersive over-damped collective magnetic excitations or ``paramagnons'' are observed up to 128 meV. We analyze our results in terms of a Moriya-Lonzarich-type spin fluctuation model and estimate the contribution of the spin fluctuations to the low temperature heat capacity. In spite of the paramagnon excitations being relatively strong, their relaxation rates are large. This leads to a small contribution to the low-temperature electronic specific heat.
Uncovering the Spatial and Temporal Variability of Wind Resources in Europe: A Web-Based Data-Mining Tool
Creators: name: Puech, Alban
name: Read, Jesse
Publisher: name: arXiv
Year: 2023
Subjects: subject: Applications (stat.AP)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: We introduce REmap-eu.app, a web-based data-mining visualization tool of the spatial and temporal variability of wind resources. It uses the latest open-access dataset of the daily wind capacity factor in 28 European countries between 1979 and 2019 and proposes several user-configurable visualizations of the temporal and spatial variations of the wind power capacity factor. The platform allows for a deep analysis of the distribution, the crosscountry correlation, and the drivers of low wind power events. It offers an easy-to-use interface that makes it suitable for the needs of researchers and stakeholders. The tool is expected to be useful in identifying areas of high wind potential and possible challenges that may impact the large-scale deployment of wind turbines in Europe. Particular importance is given to the visualization of low wind power events and to the potential of cross-border cooperations in mitigating the variability of wind in the context of increasing reliance on weather-sensitive renewable energy sources.
description: visit Remap-eu.app
A diagrammatic treatment of neutrino oscillations
Creators: name: Naumov, Dmitry V.
name: Naumov, Vadim A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a covariant wave-packet approach to neutrino flavor transitions in vacuum. The approach is based on the technique of macroscopic Feynman diagrams describing the lepton number violating processes of production and absorption of virtual massive neutrinos at the macroscopically separated space-time regions ("source" and "detector"). Accordingly, the flavor transitions are a result of interference of the diagrams with neutrinos of different masses in the intermediate states. The statistically averaged probability of the process is representable as a multidimensional integral of the product of the factors which describe the differential flux density of massless neutrinos from the source, differential cross section of the neutrino interaction with the detector and a dimensionless factor responsible for the flavor transition. The conditions are analyzed under which the last factor can be treated as the flavor transition probability in the usual quantum-mechanical sense.
description: 27 pages,7 figures, iopart class. Includes minor corrections made in proofs. References updated
All the better to eat you with: a multidisciplinary investigation into feeding in mammalian carnivores
Creators: name: POLLOCK, TAHLIA ISOBEL
Publisher: name: Monash University
Year: 2022
Subjects: subject: Zoology
subject: FOS: Biological sciences

description: The survival and success of mammalian carnivores is determined by their ability to acquire and consume food. Carnivores have evolved a range of adaptations to help them feed effectively. By examining feeding behaviour, tooth morphology, and biomechanics in a range of carnivores, I show how dingoes and Tasmanian devils hunt and process food, that canine teeth have evolved to suit diets and killing behaviours, and how tooth wear determines if the conditions of wild feeding are successfully replicated in captivity. This thesis reveals the interactions between a predator’s anatomy and behaviour that shape the diversity of feeding ecologies in mammalian carnivores today.
Introduction to 'Interfaces' 7
Creators: name: Borsa, Paolo
name: Høgel, Christian
name: Mortensen, Lars Boje
name: Tyler, Elizabeth
Publisher: name: Interfaces: A Journal of Medieval European Literatures
Year: 2020

description: The Editors introduce the seventh issue of Interfaces: A Journal of Medieval European Literatures, the third open issue of the journal.
description: Interfaces: A Journal of Medieval European Literatures, N. 7 (2020): Open Issue
Locher's and Grüninger's edition of Horace from Strasbourg 1498: At the crossroads between printed and manuscript book production and use
Creators: name: Jensen, Kristian
Publisher: name: Interfaces: A Journal of Medieval European Literatures
Year: 2020

description: This contribution aims to exemplify through a case study focused on Germany, how the late fifteenth-century availability of printed classical texts, whether for teachers or for students, facilitated an internationalisation of local textual traditions, sometimes with cultural tensions as a result. Printed books were commodities which modified both ways of engaging with texts and ways of producing manuscript texts. At the same time, pre-existing ways of making and using books formed the expectations of customers which producers of printed books sought to meet or, in a world of international commercial competition, even to exceed, by introducing innovative features which matched the evolving needs of potential buyers. We find a complex interplay of intellectual demands for change, institutionally established user expectations and the need for printers and publishers to create economically viable commodities, where printed books shaped a preexisting and continued manuscript based literary culture.
description: Interfaces: A Journal of Medieval European Literatures, N. 7 (2020): Open Issue
Multidimensional simulations of magnetic field amplification and electron acceleration to near-energy equipartition with ions by a mildly relativistic quasi-parallel plasma collision
Creators: name: Murphy, Gareth C.
name: Dieckmann, Mark E.
name: Drury, Luke O'C
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The energetic electromagnetic eruptions observed during the prompt phase of gamma-ray bursts are attributed to synchrotron emissions. The internal shocks moving through the ultrarelativistic jet, which is ejected by an imploding supermassive star, are the likely source of this radiation. Synchrotron emissions at the observed strength require the simultaneous presence of powerful magnetic fields and highly relativistic electrons. We explore with one and three-dimensional relativistic particle-in-cell simulations the transition layer of a shock, that evolves out of the collision of two plasma clouds at a speed 0.9c and in the presence of a quasi-parallel magnetic field. The cloud densities vary by a factor of 10. The number densities of ions and electrons in each cloud, which have the mass ratio 250, are equal. The peak Lorentz factor of the electrons is determined in the 1D simulation, as well as the orientation and the strength of the magnetic field at the boundary of the two colliding clouds. The relativistic masses of the electrons and ions close to the shock transition layer are comparable as in previous work. The 3D simulation shows rapid and strong plasma filamentation behind the transient precursor. The magnetic field component orthogonal to the initial field direction is amplified in both simulations to values that exceed those expected from the shock compression by over an order of magnitude. The forming shock is quasi-perpendicular due to this amplification. The simultaneous presence of highly relativistic electrons and strong magnetic fields will give rise to significant synchrotron emissions.
description: 8 pages, 5 figures. This work was presented at 21st International Conference on Numerical Simulation of Plasmas (ICNSP'09). Accepted for publication IEEE Trans. on Plasma Science
Dyspessa Hubner 1820
Creators: name: Alipanah, Helen
name: Yakovlev, Roman
name: Falsafi, Hossein
name: Witt, Thomas
name: Saldaitis, Aidas
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Cossidae
Dyspessa

description: Genus Dyspessa Hübner, [1820] 1816
Hübner, [1820] 1816, Verz. Bekannt. Schmett.: 194.
 Type species: Phalena pantherina Hübner, 1790.
Synonymy:
 = Endagria Boisduval, [1841] 1834, Icones Hist. Lépid. Nouv. ou peu connus 2: 176.
 Type species: Phalena pantherina Hübner, 1790.
description: Published as part of Alipanah, Helen, Yakovlev, Roman, Falsafi, Hossein, Witt, Thomas & Saldaitis, Aidas, 2021, 5062, pp. 1-100 in Zootaxa 5062 (1) on page 16, DOI: 10.11646/zootaxa.5062.1.1, http://zenodo.org/record/5808035
Correlated conformation and charge transport in multiwall carbon nanotube - conducting polymer nanocomposites
Creators: name: Choudhury, Paramita Kar
name: Ramaprabhu, S.
name: Ramesh, K. P.
name: Menon, Reghu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The strikingly different charge transport behaviors in nanocomposites of multiwall carbon nanotubes (MWNTs) and conducting polymer polyethylene dioxythiophene - polystyrene sulfonic acid (PEDOT-PSS) at low temperatures are explained by probing their conformational properties using small angle X-ray scattering (SAXS). The SAXS studies indicate assembly of elongated PEDOT-PSS globules on the walls of nanotubes, coating them partially thereby limiting the interaction between the nanotubes in the polymer matrix. This results in a charge transport governed mainly by small polarons in the conducting polymer despite the presence of metallic MWNTs. At T > 4 K, hopping of the charge carriers following 1D-VRH is evident which also gives rise to a positive magnetoresistance (MR) with an enhanced localization length (~ 5 nm) due to the presence of MWNTs. However, at T < 4 K, the observation of an unconventional positive temperature coefficient of resistivity (TCR) is attributed to small polaron tunnelling. The exceptionally large negative MR observed in this temperature regime is conjectured to be due to the presence of quasi-1D MWNTs that can aid in lowering the tunnelling barrier across the nanotube - polymer boundary resulting in large delocalization.
description: Accepted J. Phys.: Condens. Matter
The Origins of 'Raza:' Racializing Difference in Early Spanish
Creators: name: Gómez-Bravo, Ana
Publisher: name: Interfaces: A Journal of Medieval European Literatures
Year: 2020

description: The concept and terminology associated with the Spanish raza developed as a culturally and linguistically situated metaphor during the medieval period and first decades of the early modern period. The early biologization of raza appears after a first conceptual transfer from the textile field reinforced through semantic overlapping transfers from gemology and metallurgy lexicons. A second push toward this biologization came from an administrative language that leveraged existing though unsystematized vocabulary of (marked) selective reproduction. These developments played a key role in the early racialization of difference.
description: Interfaces: A Journal of Medieval European Literatures, N. 7 (2020): Open Issue
Thesis ArchiMate
Creators: name: Duarte, Maria Catarina
Publisher: name: Zenodo
Year: 2021

description: The viewpoints modeled here relate to the iAP description architecture. The viewpoints were modeled in ArchiMate, having been made for each modeling a simplified view and another with greater detail. AD is defined according to ISO/IEC/IEEE 42010. And it mentions several concepts such as "interested parties", "concerns", "actors", "roles", "services", "processes" and "interfaces" .
The Untimely Subject: Reporting Discourse and Bearing Witness in Villehardouin's 'La Conquête de Constantinople' and Yannick Haenel's 'Jan Karski'
Creators: name: Ravenhall, Henry Alexander
Publisher: name: Interfaces: A Journal of Medieval European Literatures
Year: 2020

description: This article examines the use of reported discourse in Villehardouin's La Conquête de Constantinople (c. 1210), offering a comparison to Robert de Clari's text of the same name. The radical shift in direct speech across the first and second halves of the text is explored in relation to three existing interpretations put forward by scholars, before a fourth one is proposed that places new emphasis on the processes of memory and text-making behind the composition of the Conquête. Villehardouin's status as eyewitness, and the importance this has for the nature of his chronicle, is then analysed through a reading of the 2009 novel Jan Karski by Yannick Haenel, whose playful, distortional treatment of historical speech and metacommentary on the act of bearing witness have important implications for the temporality and discursive features of the medieval text.
description: Interfaces: A Journal of Medieval European Literatures, N. 7 (2020): Open Issue
Shot Noise Suppression and Hopping Conduction in Graphene Nanoribbons
Creators: name: Danneau, R.
name: Wu, F.
name: Tomi, M. Y.
name: Oostinga, J. B.
name: Morpurgo, A. F.
name: Hakonen, P. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated shot noise and conduction of graphene field effect nanoribbon devices at low temperature. By analyzing the exponential $I-V$ characteristics of our devices in the transport gap region, we found out that transport follows variable range hopping laws at intermediate bias voltages $1 < V_{bias} < 12$ mV. In parallel, we observe a strong shot noise suppression leading to very low Fano factors. The strong suppression of shot noise is consistent with inelastic hopping, in crossover from one- to two-dimensional regime, indicating that the localization length $l_{loc} < W$ in our nanoribbons.
description: 4 pages, 4 figures
Rhythms and relations in transactional sex : relating past, present, and future time dimensions to the practice of purchasing sexual services in Canada
Creators: name: Burnett, Patrick John
Publisher: name: University of British Columbia
Year: 2019

description: This dissertation employs a mixed methods strategy consisting of layered multiple correspondence analyses and thematic analyses of open-ended content from 852 completed online surveys to investigate factors that shape the practices of people who pay for sexual services in Canada. It describes 12 substantively unique classifications of clients whose diverse experiences of the past, preferences for more or less intimate connections in the present, and perceptions of future risks associated with purchasing sexual services inform their safety practices and willingness to intervene when witnessing conflict. The discussion revisits three central debates in client research. First, it considers the idea of clients as perpetrators of violence and conflict, showing how lack of foresight catalyzes situational conflict and unsafe action, cognitive connections to the future shape safe practices and desire to support others in need, and future planning assures stability and regularity in transactions. Second, it considers the common position that most clients are sources of violence against service providers, arguing that some clients’ embodiment of past experiences provides a unique insider’s perspective that can mitigate violence and promote safety. Finally, it considers the role of stigma in influencing clients’ willingness to take action against victimization and conflict.