cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Classifying human influences on terrestrial ecosystems
Creators: name: Rillig, Matthias C.
name: Ryo, Masahiro
name: Lehmann, Anika
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: classification
subject: factors
subject: global change
subject: multiple factors
subject: research synthesis
subject: science communication
subject: trait‐based factor classification
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: Human activity is affecting every ecosystem on Earth, with terrestrial biodiversity decreasing rapidly. Human influences materialize in the form of numerous, jointly acting factors, yet the experimental study of such joint impacts is not well developed. We identify the absence of a systematic ordering system of factors according to their properties (traits) as an impediment to progress and offer an a priori trait-based factor classification to illustrate this point, starting at the coarsest level with the physical, biological or chemical nature of factors. Such factor classifications can serve in communication of science, but also can be used as heuristic tools to develop questions and formulate new hypotheses, or as predictors of effects, which we explore here. We hope that classifications such as the one proposed here can help shift the spotlight on the multitude of anthropogenic changes affecting ecosystems, and that such classifications can be used to help unravel joint impacts of a great number of factors.
Ludger Körntgen, Königsherrschaft und Gottes Gnade. Zu Kontext und Funktion sakraler Vorstellungen in Historiographie und Bildzeugnissen der ottonisch-frühsalischen Zeit, 2001
Creators: name: Savigni, Raffaele
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 31 Nr. 1 (2004)
SOPHIE velocimetry of Kepler transit candidates VI. An additional companion in the KOI-13 system
Creators: name: Santerne, A.
name: Moutou, C.
name: Barros, S. C. C.
name: Damiani, C.
name: Díaz, R. F.
name: Almenara, J. -M.
name: Bonomo, A. S.
name: Bouchy, F.
name: Deleuil, M.
name: Hébrard, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of a new stellar companion in the KOI-13 system. KOI-13 is composed by two fast-rotating A-type stars of similar magnitude. One of these two stars hosts a transiting planet discovered by Kepler. We obtained new radial velocity measurements using the SOPHIE spectrograph at the Observatoire de Haute-Provence that revealed an additional companion in this system. This companion has a mass between 0.4 and 1 Msun and orbits one of the two main stars with a period of 65.831 \pm 0.029 days and an eccentricity of 0.52 \pm 0.02. The radial velocities of the two stars were derived using a model of two fast-rotating line profiles. From the residuals, we found a hint of the stellar variations seen in the Kepler light curve with an amplitude of about 1.41 km/s and a period close to the rotational period. This signal appears to be about three order of magnitude larger than expected for stellar activity. From the analysis of the residuals, we also put a 3-sigma upper-limit on the mass of the transiting planet KOI-13.01 of 14.8 Mjup and 9.4 Mjup, depending on which star hosts the transit. We found that this new companion has no significant impact on the photometric determination of the mass of KOI-13.01 but is expected to affect precise infrared photometry. Finally, using dynamical simulations, we infer that the new companion is orbiting around KOI-13B while the transiting planet candidate is expected to orbit KOI-13A. Thus, the transiting planet candidate KOI-13.01 is orbiting the main component of a hierarchical triple system.
description: Accepted in A&A Letters. 4 pages including 4 figures and the RV table
Social networks predict the life and death of honey bees
Creators: name: Wild, Benjamin
name: Dormagen, David M.
name: Zachariae, Adrian
name: Smith, Michael L.
name: Traynor, Kirsten S.
name: Brockmann, Dirk
name: Couzin, Iain D.
name: Landgraf, Tim
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Animal behaviour
subject: Complexity
subject: Computer modelling
subject: Entomology
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie

description: In complex societies, individuals' roles are reflected by interactions with other conspecifics. Honey bees (Apis mellifera) generally change tasks as they age, but developmental trajectories of individuals can vary drastically due to physiological and environmental factors. We introduce a succinct descriptor of an individual's social network that can be obtained without interfering with the colony. This 'network age' accurately predicts task allocation, survival, activity patterns, and future behavior. We analyze developmental trajectories of multiple cohorts of individuals in a natural setting and identify distinct developmental pathways and critical life changes. Our findings suggest a high stability in task allocation on an individual level. We show that our method is versatile and can extract different properties from social networks, opening up a broad range of future studies. Our approach highlights the relationship of social interactions and individual traits, and provides a scalable technique for understanding how complex social systems function. Honey bee workers take on different tasks for the colony as they age. Here, the authors develop a method to extract a descriptor of the individuals' social networks and show that interaction patterns predict task allocation and distinguish different developmental trajectories.
Complete separation of variables in the geodesic Hamilton--Jacobi equation in four dimensions
Creators: name: Katanaev, M. O.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We list all metrics of arbitrary signature in four dimensions which admit complete separation of variables in the Hamilton--Jacobi equation for geodesic Hamiltonians. There are only ten classes of separable metrics admitting commuting Killing vector fields, indecomposable quadratic conservation laws, and coisotropic coordinates. Canonical separable metrics parameterized by several (up to twelve) arbitrary functions of single coordinates are written explicitly. The full set of independent conservation laws in involution for each canonical metrics is also found.
description: 11 pages. arXiv admin note: substantial text overlap with arXiv:2305.02222
Room-temperature high-speed nuclear-spin quantum memory in diamond
Creators: name: Shim, J. H.
name: Niemeyer, I.
name: Zhang, J.
name: Suter, D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum memories provide intermediate storage of quantum information until it is needed for the next step of a quantum algorithm or a quantum communication process. Relevant figures of merit are therefore the fidelity with which the information can be written and retrieved, the storage time, and also the speed of the read-write process. Here, we present experimental data on a quantum memory consisting of a single $^{13}$C nuclear spin that is strongly coupled to the electron spin of a nitrogen-vacancy (NV) center in diamond. The strong hyperfine interaction of the nearest-neighbor carbon results in transfer times of 300 ns between the register qubit and the memory qubit, with an overall fidelity of 88 % for the write - storage - read cycle. The observed storage times of 3.3 ms appear to be limited by the T$_1$ relaxation of the electron spin. We discuss a possible scheme that may extend the storage time beyond this limit.
description: 7 pages, 6 figures
Updating The Dartmouth Stellar Evolution Model Grid: Pre-Main-Sequence Models & Magnetic Fields
Creators: name: Feiden, Gregory
name: Chaboyer, Brian
name: Jones, Jaquille
Publisher: name: Zenodo
Year: 2014
Subjects: stellar evolution
stellar structure
magnetic field
stars

description: Poster from The 18th Workshop on Cool Stars, Stellar Systems, and the Sun on updating the Dartmouth stellar evolution model grid. Additions include models of pre-main-sequence stars, magnetic fields, deuterium burning, and a revised treatment of surface boundary conditions.
FVM 1.0: a nonhydrostatic finite-volume dynamical core for the IFS
Creators: name: Kühnlein, Christian
name: Deconinck, Willem
name: Klein, Rupert
name: Malardel, Sylvie
name: Piotrowski, Zbigniew P.
name: Smolarkiewicz, Piotr K.
name: Szmelter, Joanna
name: Wedi, Nils P.
Publisher: name: Freie Universität Berlin
Year: 2019
Subjects: subject: IFS
subject: numerical weather prediction
subject: global atmospheric model
subject: Integrated Forecasting System
subject: 500 Naturwissenschaften und Mathematik::510 Mathematik::510 Mathematik

description: We present a nonhydrostatic finite-volume global atmospheric model formulation for numerical weather prediction with the Integrated Forecasting System (IFS) at ECMWF and compare it to the established operational spectral-transform formulation. The novel Finite-Volume Module of the IFS (henceforth IFS-FVM) integrates the fully compressible equations using semi-implicit time stepping and non-oscillatory forward-in-time (NFT) Eulerian advection, whereas the spectral-transform IFS solves the hydrostatic primitive equations (optionally the fully compressible equations) using a semi-implicit semi-Lagrangian scheme. The IFS-FVM complements the spectral-transform counterpart by means of the finite-volume discretization with a local low-volume communication footprint, fully conservative and monotone advective transport, all-scale deep-atmosphere fully compressible equations in a generalized height-based vertical coordinate, and flexible horizontal meshes. Nevertheless, both the finite-volume and spectral-transform formulations can share the same quasi-uniform horizontal grid with co-located arrangement of variables, geospherical longitude–latitude coordinates, and physics parameterizations, thereby facilitating their comparison, coexistence, and combination in the IFS. We highlight the advanced semi-implicit NFT finite-volume integration of the fully compressible equations of IFS-FVM considering comprehensive moist-precipitating dynamics with coupling to the IFS cloud parameterization by means of a generic interface. These developments – including a new horizontal–vertical split NFT MPDATA advective transport scheme, variable time stepping, effective preconditioning of the elliptic Helmholtz solver in the semi-implicit scheme, and a computationally efficient implementation of the median-dual finite-volume approach – provide a basis for the efficacy of IFS-FVM and its application in global numerical weather prediction. Here, numerical experiments focus on relevant dry and moist-precipitating baroclinic instability at various resolutions. We show that the presented semi-implicit NFT finite-volume integration scheme on co-located meshes of IFS-FVM can provide highly competitive solution quality and computational performance to the proven semi-implicit semi-Lagrangian integration scheme of the spectral-transform IFS.
Should Science Always Be Open?
Creators: name: Thorhauge, Thomas
name: Metserton, Sofie Lind
name: Larsdotter, Karin
name: Christensen, Kaare
name: Harwood, Roland
name: Taylor, Mike
name: Askwall, Cissi
name: Parraguez, Pedro
name: Elbaek, Mikael K.
name: Grigorov, Ivo
name: Sundberg, Carl Johan
Publisher: name: Zenodo
Year: 2014
Subjects: open science
open innovation
open data
open patient data
open access
open by default

description: We are experiencing a paradigm shift in the way new knowledge is shared. The internet allows for complete openness for research, innovation and personal and government information. Openness to resources from academia, government and industry changes the playing field for citizens, scientists, inventors and industry, allowing all to participate in innovation and value creation, regardless of geography and background.

We will explore the balance between benefits and concerns in relation to openness to knowledge and data. We will showcase the current impact potential of open science and open innovation, while considering intellectual property, the right for commercial exploitation of innovative concepts and the need for privacy legislation preventing misuse of personal data.

We will discuss questions such as: Why should I care about openness? Does open science create more impact? Does intellectual property enable or hinder progress? Does openness pose risks for privacy and patients?

Storify thanks to Célya Gruson-Daniel: https://storify.com/HackYourPhd/esof2014-day-5-should-science-always-be-open#publicize
M. Kintzinger, Westbindungen im spätmittelalterlichen Europa. Auswärtige Politik zwischen dem Reich, Frankreich, Burgund und England in der Regierungszeit Kaiser Sigmunds, 2000
Creators: name: Mœglin, Jean-Marie
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 31 Nr. 1 (2004)
Should Innovation Always Be Open?
Creators: name: Harwood, Roland
Publisher: name: Zenodo
Year: 2014
Subjects: open innovation

description: Roland Harwood will reference how many large organisations are now embracing open innovation, open source and open data because it is proven to be a better way to solve complex problems, attract and retain talent, and to maintain accountability through transparency. And yet he will highlight the

significant challenges this still poses to most organisations, particularly in terms of intellectual property but also regarding collaborative cultures. However he will argue that anything that can be shared will be eventually and that those that do so by default will benefit more than those who have openness

forced upon them.

Roland Harwood is Co-founder and Networks Partner at 100%Open, the global open innovation agency that works with the likes of LEGO, P&G, Oxfam and Ordnance Survey to coinnovate with partners. It was a spin-out from NESTA in 2010, the UK Innovation Agency and Investment Fund, where he was Director of Open Innovation. Graduating with a PhD in Physics from Edinburgh University, he has held senior innovation roles in the public and private sector. In addition has worked with hundreds of start-ups to raise venture capital and comercialise technology. He is a keen piano player and has produced TV and film music for SonyBMG. Last but not least, he is a proud and often exhausted dad of 3 kids under 7.

Linked In: http://uk.linkedin.com/in/rolandharwood
Conjectures involving arithmetical sequences
Creators: name: Sun, Zhi-Wei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11A41, 05A10, 11B39, 11B68, 11B73, 11B83

description: We pose thirty conjectures on arithmetical sequences, most of which are about monotonicity of sequences of the form $(\root n\of{a_n})_{n\ge 1}$ or the form $(\root{n+1}\of{a_{n+1}}/\root n\of{a_n})_{n\ge1}$, where $(a_n)_{n\ge 1}$ is a number-theoretic or combinatorial sequence of positive integers. This material might stimulate further research.
description: 14 pages. Final published version
The affectively extended self: A pragmatist approach
Creators: name: Piredda, Giulia
name: Candiotto, Laura
Publisher: name: Freie Universität Berlin
Year: 2019
Subjects: subject: extended self
subject: situated affectivity
subject: motivational theory of emotions
subject: pragmatism
subject: enactivism
subject: 100 Philosophie und Psychologie::100 Philosophie::101 Theorie der Philosophie

description: In this paper we suggest an understanding of the self within the conceptual framework of situated affectivity, proposing the notion of an affectively extended self and arguing that the construction, diachronic re-shaping and maintenance of the self is mediated first by affective interactions. We initially consider the different variations on the conception of the extended self that have been already proposed in the literature (Clark & Chalmers 1998; Heersmink 2017, 2018; Krueger 2018; Wilson, Lenart 2015). We then propose our alternative, contextualising it within the current debate on situated affectivity. While the idea that we exploit the external environment in order to manage our affective life is now rather widespread among philosophers (e.g. Colombetti & Krueger 2015, Piredda 2019), its potential consequences for and connections with the debate on the self remain underexplored. Drawing on James’ intuition of the “material self”, which clearly connects the self and the emotions in agency, and broadly envisioning an extension of the self beyond its organismic boundaries, we propose our pragmatist conception of the self: an affectively extended self that relies on affective artifacts and practices to construct its identity extended beyond skin and skull.
Elucidation of orientation relations between Fe-Cr alloys and corrosion products after high temperature SO2 corrosion
Creators: name: Stephan-Scherb, Christiane
name: Menneken, Martina
name: Weber, Kathrin
name: Jacome, Leonardo Agudo
name: Nolze, Gert
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: Iron
subject: TEM
subject: SEM
subject: High
subject: Temperature Corrosion
subject: Oxidation
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::550 Geowissenschaften

description: The early stages of corrosion of Fe-Cr-model alloys (2 and 9 % Cr) were investigated after exposure at 650 degrees C in 0.5 % SO2 containing gas by electron backscattered diffraction (EBSD) and transmission electron microscopy (TEM). The impact of the grain orientation of the base alloy on the orientation relations of the corrosion products is presented. After 2 min - 5 min exposure the formation of a multi-layered corrosion zone was discovered. A clear orientation relationship between ferrite and the (Fe,Cr)(3)O-4 spinel could be demonstrated. The obtained results show the importance of the grain orientation on oxidation resistance.
Magnetic field effects on the finite-frequency noise and ac conductance of a Kondo quantum dot out of equilibrium
Creators: name: Mueller, S. Y.
name: Pletyukhov, M.
name: Schuricht, D.
name: Andergassen, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present analytic results for the finite-frequency current noise and the nonequilibrium ac conductance for a Kondo quantum dot in presence of a magnetic field. Using the real-time renormalization group method, we determine the line shape close to resonances and show that while all resonances in the ac conductance are broadened by the transverse spin relaxation rate, the noise at finite field additionally involves the longitudinal rate as well as sharp kinks resulting in singular derivatives. Our results provide a consistent theoretical description of recent experimental data for the emission noise at zero magnetic field, and we propose the extension to finite field for which we present a detailed prediction.
description: 21 pages, 13 figures
Two-body anticorrelation in a harmonically trapped ideal Bose gas
Creators: name: Wright, T. M.
name: Perrin, A.
name: Bray, A.
name: Schmiedmayer, J.
name: Kheruntsyan, K. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We predict the existence of a dip below unity in the second-order coherence function of a partially condensed ideal Bose gas in harmonic confinement, signaling the anticorrelation of density fluctuations in the sample. The dip in the second-order coherence function is revealed in a canonical-ensemble calculation, corresponding to a system with fixed total number of particles. In a grand-canonical ensemble description, this dip is obscured by the occupation-number fluctuation catastrophe of the ideal Bose gas. The anticorrelation is most pronounced in highly anisotropic trap geometries containing small particle numbers. We explain the fundamental physical mechanism which underlies this phenomenon, and its relevance to experiments on interacting Bose gases.
description: 10 pages, 5 figures. v2: Minor changes and corrections to figures and text. To appear in PRA
Maintenance of cell type-specific connectivity and circuit function requires Tao kinase
Creators: name: Tenedini, Federico Marcello
name: Sigrist, Stephan J.
name: González, Maria Sáez
name: Hu, Chun
name: Pedersen, Lisa Hedegaard
name: Petruzzi, Mabel Matamala
name: Spitzweck, Bettina
name: Wang, Denan
name: Richter, Melanie
name: Petersen, Meike
Publisher: name: Freie Universität Berlin
Year: 2019
Subjects: subject: cell growth
subject: cellular neuroscience
subject: differentiation
subject: morphogenesis
subject: neuroscience
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::573 Einzelne physiologische Systeme bei Tieren

description: Sensory circuits are typically established during early development, yet how circuit specificity and function are maintained during organismal growth has not been elucidated. To gain insight we quantitatively investigated synaptic growth and connectivity in the Drosophila nociceptive network during larval development. We show that connectivity between primary nociceptors and their downstream neurons scales with animal size. We further identified the conserved Ste20-like kinase Tao as a negative regulator of synaptic growth required for maintenance of circuit specificity and connectivity. Loss of Tao kinase resulted in exuberant postsynaptic specializations and aberrant connectivity during larval growth. Using functional imaging and behavioral analysis we show that loss of Tao-induced ectopic synapses with inappropriate partner neurons are functional and alter behavioral responses in a connection-specific manner. Our data show that fine-tuning of synaptic growth by Tao kinase is required for maintaining specificity and behavioral output of the neuronal network during animal growth.
Should Patient Data Always Be Open?
Creators: name: Larsdotter, Karin
Publisher: name: Zenodo
Year: 2014
Subjects: open patient data
patient data
privacy
patient data registers

description: Nationwide registries containing personal information on socioeconomic status and medical conditions exist in many countries for administrative purposes.  Along with large-scale, population-based cohorts created for research, these administrative registries are widely used in a broad range of sciences including medicine, economics and social sciences.

There are concerns among the public that the use of these databases can threaten personal integrity; results from a recent opinion poll in Sweden show that 60% of the respondents only want researchers to have limited access to databases containing information about personal relationships or medical conditions. Desirable restrictions include, for example, only giving researchers access to anonymous data or data on selected illnesses or personal relationships. These concerns are most prevalent among older and less educated people.

Conversely, it is clear that the same databases can be used to remove concerns or detect unrecognized threats. One example is vaccination programmes that prevent serious adverse health outcomes in children. Participation in these programs was declining some years ago due to concerns that the vaccination might cause autism. Large-scale studies using existing databases have provided strong evidence against this hypothesis, hereby removing much of this public concern.

Administrative registries exist, regardless of whether they are used for research, so it could be argued that it is unethical not to use the existing information to protect and improve public health. In discussions on large-scale databases, it is important to recognise both the concerns that are introduced and those that are removed.

Karin Larsdotter is Research and Project Manager at the Swedish non-profit membership organisation VA, Public & Science. She is the Project Manager for several projects dealing with public engagement, scientific literacy and responsible research and innovation, RRI. She is also responsible for the 2013-2014 edition of VA’s annual opinion poll on the Swedish public’s attitudes towards science and researchers: the VA barometer. Karin holds a PhD in environmental microbiology and has previously worked as a Project Manager for Researchers’ Night in Stockholm in parallel with research and teaching in microbiology at the Royal Institute of Technology.

se.linkedin.com/pub/karin-larsdotter/24/b1/545
Constraints on Hidden Photon Models from Electron g-2 and Hydrogen Spectroscopy
Creators: name: Endo, Motoi
name: Hamaguchi, Koichi
name: Mishima, Go
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The hidden photon model is one of the simplest models which can explain the anomaly of the muon anomalous magnetic moment (g-2). The experimental constraints are studied in detail, which come from the electron g-2 and the hydrogen transition frequencies. The input parameters are set carefully in order to take dark photon contributions into account and to prevent the analysis from being self-inconsistent. It is shown that the new analysis provides a constraint severer by more than one order of magnitude than the previous result.
description: 18 pages, 2 figures, 1 table. v2: minor corrections
Model Independent Evolution of Transverse Momentum Dependent Distribution Functions (TMDs) at NNLL
Creators: name: Echevarria, Miguel G.
name: Idilbi, Ahmad
name: Schäfer, Andreas
name: Scimemi, Ignazio
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the evolution of the eight leading twist transverse momentum dependent parton distribution functions, which turns out to be universal and spin independent. By using the highest order perturbatively calculable ingredients at our disposal, we perform the resummation of the large logarithms that appear in the evolution kernel of transverse momentum distributions up to next-to-next-to-leading logarithms (NNLL), thus obtaining an expression for the kernel with highly reduced model dependence. Our results can also be obtained using the standard CSS approach when a particular choice of the $b^*$ prescription is used. In this sense, and while restricted to the perturbative domain of applicability, we consider our results as a "prediction" of the correct value of $b_{\rm max}$ which is very close to $1.5 {\rm GeV}^{-1}$. We explore under which kinematical conditions the effects of the non-perturbative region are negligible, and hence the evolution of transverse momentum distributions can be applied in a model independent way. The application of the kernel is illustrated by considering the unpolarized transverse momentum dependent parton distribution function and the Sivers function.
description: To appear in EPJC. 17 pages, 7 figures
Synthetic X-ray emission from white dwarf accreting planetary material
Creators: name: Estrada-Dorado, S.
name: Lora, V.
name: Toalá, J. A.
name: Esquivel, A.
name: Guerrero, M. A.
name: Maldonado, R. F.
name: Chu, Y. -H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The emission of hard X-rays associated with white dwarfs (WD) can be generated by the presence of a stellar companion either by the companion's coronal emission or by an accretion disk formed by material stripped from the companion. Recent studies have suggested that a Jupiter-like planet can also be donor of material whose accretion onto the WD can generate hard X-rays. We use the {\sc guacho} code to reproduce the conditions of this WD-planet scenario. With the example of the hard X-ray WD KPD\,0005+5106, we explore different terminal wind velocities and mass-loss rates of a donor planet for a future network of simulations to investigate the luminosity and the spectral and temporal properties of the hard X-ray emission in WD-planet systems. Our simulations show that the material stripped from the planet forms a disk and accretes onto the WD to reach temperatures high enough to generate hard X-rays as usually seen in X-ray binaries with low-mass companions. For high terminal wind velocities, the planet material does not form a disk, but it rather accretes directly onto the WD surface. The simulations reproduce the X-ray luminosity of another X-ray accreting WD (G\,29$-$38), and only for some times reaches the hard X-ray luminosity of KPD\,0005+5106. The X-ray variability is stochastic and does not reproduce the period of KPD\,0005+5106, suggesting that additional physical processes (e.g., hot spots resulting from magnetic channelling of the accreting material) need to be explored.
description: 16 pages, 13 figures
Thickness-dependent polarization of strained BiFeO3 films with constant tetragonality
Creators: name: Rault, J. E.
name: Ren, W.
name: Prosandeev, S.
name: Lisenkov, S.
name: Sando, D.
name: Fusil, S.
name: Bibes, M.
name: Barthelemy, A.
name: Bellaiche, L.
name: Barrett, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We measure the remnant polarization of ferroelectric domains in BiFeO3 films down to 3.6 nm using low energy electron and photoelectron emission microscopy. The measured polarization decays strongly below a critical thickness of 5-7 nm predicted by continuous medium theory whereas the tetragonal distortion does not change. We resolve this apparent contradiction using first-principles-based effective Hamiltonian calculations. In ultra thin films the energetics of near open circuit electrical boundary conditions, i.e. unscreened depolarizing field, drive the system through a phase transition from single out-of-plane polarization to a nanoscale stripe domains, giving rise to an average remnant polarization close to zero as measured by the electron microscopy whilst maintaining the relatively large tetragonal distortion imposed by the non-zero polarization state of each individual domain.
description: main article: 5 pages, 6 figures; supplementary materials: 6 pages, 6 figures. Published in Phys. Rev. Lett
Goethe et Werther. Lettres de Goethe aux Kestner, préface de J.-M. Valentin, édition allemande recueillie au XIXe siècle par August Kestner et traduite en français par Louis Parade, présentée et annotée par U. Moureau-Martini, 2003
Creators: name: Cottebrune, Anne
Publisher: name: Francia
Year: 2019

description: Francia, Bd. 31 Nr. 2 (2004)
Attribution of ground-level ozone to anthropogenic and natural sources of nitrogen oxides and reactive carbon in a global chemical transport model
Creators: name: Butler, Tim
name: Lupascu, Aurelia
name: Nalam, Aditya
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: tropospheric ozone
subject: atmospheric chemistry
subject: air-pollution
subject: surface ozone
subject: source apportionment
subject: land transport
subject: nitrate pan
subject: emissions
subject: 500 Naturwissenschaften und Mathematik::550 Geowissenschaften, Geologie::551 Geologie, Hydrologie, Meteorologie

description: We perform a source attribution for tropospheric and ground-level ozone using a novel technique that accounts separately for the contributions of the two chemically distinct emitted precursors (reactive carbon and oxides of nitrogen) to the chemical production of ozone in the troposphere. By tagging anthropogenic emissions of these precursors according to the geographical region from which they are emitted, we determine source-receptor relationships for ground-level ozone. Our methodology reproduces earlier results obtained via other techniques for ozone source attribution, and it also delivers additional information about the modelled processes responsible for the intercontinental transport of ozone, which is especially strong during the spring months. The current generation of chemical transport models used to support international negotiations aimed at reducing the intercontinental transport of ozone shows especially strong inter-model differences in simulated springtime ozone. Current models also simulate a large range of different responses of surface ozone to methane, which is one of the major precursors of ground-level ozone. Using our novel source attribution technique, we show that emissions of NOx (oxides of nitrogen) from international shipping over the high seas play a disproportionately strong role in our model system regarding the hemispheric-scale response of surface ozone to changes in methane, as well as to the springtime maximum in intercontinental transport of ozone and its precursors. We recommend a renewed focus on the improvement of the representation of the chemistry of ship NOx emissions in current-generation models. We demonstrate the utility of ozone source attribution as a powerful model diagnostic tool and recommend that similar source attribution techniques become a standard part of future model intercomparison studies.
Simulating the assembly of galaxies at redshifts z = 6 - 12
Creators: name: Dayal, Pratika
name: Dunlop, James S.
name: Maio, Umberto
name: Ciardi, Benedetta
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We use state-of-the-art simulations to explore the physical evolution of galaxies in the first billion years of cosmic time. First, we demonstrate that our model reproduces the basic statistical properties of the observed Lyman-break galaxy (LBG) population at z = 6 - 8, including the evolving ultra-violet (UV) luminosity function (LF), the stellar-mass density (SMD), and the average specific star-formation rates (sSFR) of LBGs with M_{UV} < -18 (AB mag). Encouraged by this success we present predictions for the behaviour of fainter LBGs extending down to M_{UV} <= -15 (as will be probed with the James Webb Space Telescope) and have interrogated our simulations to try to gain insight into the physical drivers of the observed population evolution. We find that mass growth due to star formation in the mass-dominant progenitor builds up about 90% of the total z ~ 6 LBG stellar mass, dominating over the mass contributed by merging throughout this era. Our simulation suggests that the apparent "luminosity evolution" depends on the luminosity range probed: the steady brightening of the bright end of the LF is driven primarily by genuine physical luminosity evolution and arises due to a fairly steady increase in the UV luminosity (and hence star-formation rates) in the most massive LBGs. However, at fainter luminosities the situation is more complex, due in part to the more stochastic star-formation histories of lower-mass objects; at this end, the evolution of the UV LF involves a mix of positive and negative luminosity evolution (as low-mass galaxies temporarily brighten then fade) coupled with both positive and negative density evolution (as new low-mass galaxies form, and other low-mass galaxies are consumed by merging). We also predict the average sSFR of LBGs should rise from sSFR = 4.5 Gyr^-1 at z = 6 to about 11 Gyr^-1 by z = 9.
description: Accepted for publication in MNRAS
Nearly flat Andreev bound states in superconductor-topological insulator hybrid structures
Creators: name: Lababidi, Mahmoud
name: Zhao, Erhai
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Exotic excitations arise at the interface between a three-dimensional topological insulator (TI) and superconductors. For example, Majorana fermions with a linear dispersion, $E\sim k$, exist in a short $π$ Josephson junction on the TI surface. We show that in these systems, the Andreev bound states spectrum becomes nearly flat at zero energy when the chemical potential is sufficiently away from the Dirac point. The flat dispersion is well approximated by $E\sim k^N$, where $N$ scales with the chemical potential. Similar evolution from linear to flat dispersion also occurs for the subgap spectrum of a periodic superconducting proximity structure, such as a TI surface in contact with a stripe superconductor.
description: 5 pages, 4 figures
The infrared colors of the Sun
Creators: name: Casagrande, L.
name: Ramirez, I.
name: Melendez, J.
name: Asplund, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Solar infrared colors provide powerful constraints on the stellar effective temperature scale, but to this purpose they must be measured with both accuracy and precision. We achieve this requirement by using line-depth ratios to derive in a model independent way the infrared colors of the Sun, and use the latter to test the zero-point of the Casagrande et al. (2010) effective temperature scale, confirming its accuracy. Solar colors in the widely used 2MASS -J H K- and WISE -W1 W2 W3 W4- systems are provided. A cross check of the effective temperatures derived implementing 2MASS or WISE magnitudes in the infrared flux method confirms that the absolute calibration of the two systems agree within the errors, possibly suggesting a 1% offset between the two, thus validating extant near and mid infrared absolute calibrations. While 2MASS magnitudes are usually well suited to derive effective temperatures, we find that a number of bright, solar-like stars exhibit anomalous WISE colors. In most cases this effect is spurious and traceable to lower quality measurements, although for a couple of objects (3 +/- 2 % of the total sample) it might be real and hints towards the presence of warm/hot debris disks.
description: ApJ, accepted. Minor changes to match published version
Large-scale calculations of supernova neutrino-induced reactions in Z=8-82 target nuclei
Creators: name: Paar, N.
name: Tutman, H.
name: Marketin, T.
name: Fischer, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Background: In the environment of high neutrino-fluxes provided in core-collapse supernovae or neutron star mergers, neutrino-induced reactions with nuclei contribute to the nucleosynthesis processes. A number of terrestrial neutrino detectors are based on inelastic neutrino-nucleus scattering and modeling of the respective cross sections allow predictions of the expected detector reaction rates. Purpose: To provide a self-consistent microscopic description of neutrino-nucleus cross sections involving a large pool of Z = 8 - 82 nuclei for the implementation in models of nucleosynthesis and neutrino detector simulations. Methods: Self-consistent theory framework based on relativistic nuclear energy density functional is employed to determine the nuclear structure of the initial state and relevant transitions to excited states induced by neutrinos. The weak neutrino-nucleus interaction is employed in the current-current form and a complete set of transition operators is taken into account. Results: We perform large-scale calculations of charged-current neutrino-nucleus cross sections, including those averaged over supernova neutrino fluxes, for the set of even-even target nuclei from oxygen toward lead (Z = 8 - 82), spanning N = 8 - 182 (OPb pool). The model calculations include allowed and forbidden transitions up to J = 5 multipoles. Conclusions: The present analysis shows that the self-consistent calculations result in considerable differences in comparison to previously reported cross sections, and for a large number of target nuclei the cross sections are enhanced. Revision in modeling r-process nucleosynthesis based on a self-consistent description of neutrino-induced reactions would allow an updated insight into the origin of elements in the Universe and it would provide the estimate of uncertainties in the calculated element abundance patterns.
description: 25 pages, 12 figures, submitted to Physical Review C
Scattering by stringy black holes
Creators: name: Xavier, Sérgio V. M. C. B.
name: Benone, Carolina L.
name: Leite, Luiz C. S.
name: Crispino, Luís C. B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the scattering of axially incident massless scalar waves by a charged and rotating black hole solution from heterotic string theory called the Kerr-Sen black hole. We compute the scattering cross section using the partial wave approach, for arbitrary incident wavelengths. We compare our results with those of the general relativistic version of a charged and rotating black hole, namely the Kerr-Newman black hole. We present a selection of numerical results showing that these compact objects have similar scattering properties.
description: 8 pages, 4 figures
The Foregrounding Assessment Matrix: An interface for qualitative-quantitative interdisciplinary research
Creators: name: Gambino, Renata
name: Pulvirenti, Grazia
name: Sylvester, Teresa
name: Jacobs, Arthur M.
name: Lüdtke, Jana
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: Qualitative and quantitative research
subject: Literary criticism
subject: Experimental psychology
subject: Foregrounding
subject: Density fields
subject: 100 Philosophie und Psychologie::150 Psychologie::150 Psychologie

description: This paper presents the results of a transdisciplinary research conducted by scholars working in the humanities and experimental psychologists in order to find an interface between the needs of a qualitative approach (mainly based on the evaluation of stylistic features) and those of a quantitative analysis, in order to find useful features for testing different reading behaviors and for new hermeneutical enquiries. The results of our research, which was conducted in two Labs (Dahlem Institute for Neuroimaging of Emotion at the FU Berlin and the NewHums - Neurocog-nitive and Human Studies at the University of Catania), consistently differ from previous ones, as they focus on the whole multi-layered foregrounded texture of a poem and try to evaluate predictable differences in reading, re-reading behaviour and meaning-making processes. We present the FAM, targeting foregrounding elements in three main categories: the phonological, morpho-syntactic, and rhetoric. To identify those elements, four different text levels were taken into account, the sublexical level of phonemes and syllables, the lexical level of single words, the interlexical level of word combinations across longer distance (e.g. two lines), and the supralexical level of whole stanzas or an entire poem. In contrast to previous quantitative analyses on short, isolated sentences and texts, mostly expository in nature (`textoids'), or on single words or segments, the text is considered as a whole, marked by density fields that work as milestones along a reading route.
An Industry 4.0 Glossary English – Thai – English
Creators: name: Madritsch, Christian
name: Zakova, Katarina
name: Putpuek, Narongsak
name: Singsri, Pongpat
name: Jitngernmadan, Prajaks
name: Langmann, Reinhard
name: Gfrerer, Margareth
name: Kumpakeaw, Saman
name: Bundasak, Supaporn
name: Kimpan, Warangkhana
Publisher: name: ARDC
Year: 2023

description: The Erasmus+ Project "Education and Training for Automation 4.0 in Thailand (ETAT)" faced the challenge that the European Project Team was not able to speak Thai and the learners (students and lifelong-learners from companies) of the Thai partner organizations are facing challenges with the English language. Therefore, it was considered to introduce a glossary for automation engineering in the form of a collection of important terms. Out of the developed training content 671 terms the Thai partners have selected based on what they understood as important to have in the glossary and subsequently they translated those terms into Thai.
The ETAT Team led discussions about the semantic towards the close context with the teaching material. Already at mid-term of the ETAT project the glossary was completed. However, so far - there is no meaningful feedback from the potential users, because the first testing was in the try-out of the training material with students from the Thai organisations. It is expected that in the lifelong-leaning process this glossary will become valuable for Thai learners due to the fact that professionals from industries often lack English language skills.
In general, this glossary should be seen as an open-source tool. In technical terms the glossary was implemented based on available free glossary software - following the FAIR (Findable, Accessible, Interoperable and Reproduceable) principles. The glossary is accessible from both sides - the ETAT project website (https://etat-erasmus.com) and the individual training modules. It is understood that the glossary accommodates the basic terms necessary for automation engineering trainings. Due to the universal content of automation engineering, it can be translated in the different languages, wherever automation engineering is lectured.
Since the ETAT project training material is available under the creative common licence, the use of the glossary can be harmonized with the freely teaching material.
Acknowledgements
The project work is supported by the ERASMUS+ programm with the Grant Agreement 610154-EPP-1-2019-1-DE-EPPKA2-CBHE-JP.
References
1. ETAT glossary: https://etat.informatics.buu.ac.th/index.php/etat-glossary/
Finite Heterogeneous Rate Constants for the Electrochemical Oxidation of VO2+ at Glassy Carbon Electrodes
Creators: name: Tichter, Tim
name: Schneider, Jonathan
name: Roth, Christina
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: vanadium redox-flow batteries
subject: rotating disc electrode
subject: linear sweep voltammetry
subject: Koutecky-Levich analysis
subject: Tafel analysis
subject: 500 Naturwissenschaften und Mathematik::540 Chemie::541 Physikalische Chemie

description: The electrochemical oxidation of VO2+ at planar glassy carbon electrodes is investigated via stationary and rotating linear sweep voltammetry as well as via chronoamperometry. It is demonstrated that introducing finite kinetic rate constants into the Butler-Volmer equation captures the experimentally observed concentration dependence of the ordinate intercept in Koutecky-Levich plots that cannot be explained by using the classical model. This new concept leads to a three-term Koutecky-Levich equation considering mass transport limitations, Butler-Volmer kinetics, as well as finite heterogeneous kinetics simultaneously. Based on these findings it is pointed out that stationary linear sweep voltammetry followed by an irreversible Randles-Sevcik analysis is not sufficient for deducing the electrode kinetics of the VO2+-oxidation. In contrast, it is verified experimentally and theoretically that a Tafel analysis will still provide reasonable values of k(0) = 1.35 . 10(-5) cm/s and alpha = 0.38, respectively. Finally, it is shown that introducing the concept of finite heterogeneous kinetics into the theory of stationary linear sweep voltammetry also explains the failure of the irreversible Randles-Sevcik relation leading to an extension of the classical model and providing insight into the electrochemical oxidation reaction of VO2+.