cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Farrell-Jones Conjecture for Graph Products
Creators: name: Gandini, Giovanni
name: Rueping, Henrik
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics

description: We show that the class of groups satisfying the K- and L-theoretic Farrell-Jones conjecture is closed under taking graph products of groups.
GALLANT: a standardized workflow for multi strain genome-scale metabolic modeling.
Creators: name: Granado, David San León
name: Enrique, Juan Nogales
Publisher: name: F1000 Research Limited
Year: 2023

description: Genome-scale metabolic models (GEMs) of bacteria are one of the most important drivers of
 recent advances in metabolic engineering and systems biology. However, single strain GEMs
 define the metabolic capabilities of the strain in question, thus limiting the ability to perform
 metabolic studies at the species level. To overcome this, here we present GALLANT, a
 standardized and reproducible workflow that returns multi-strain GEMs to analyze the unique
 capabilities of individual strains, but with the added value that it is also able to group GEMs
 according to their pan-genome to perform studies of metabolic potential at the species level.
 The main goal of GALLANT is to deliver output GEMs to the highest standards. To this end,
 GALLANT uses a high-quality, customized GEM database as a template and it combines it with
 other databases like BIGG and KEGG to return final GEM drafts. To reduce the need for
 subsequent manual curation, it features an optimized automatic gap-filling module for multi-
 strain modeling, while built-in GEM quality assurance tools such as MEMOTE guide the user in
 the process of refining final results. GALLANT’s robust modular design supports parallel delivery
 of single strain GEMs and it is fully geared up to be run on high performance servers in order to
 scale up the process and reduce execution times considerably. We demonstrate that GALLANT
 provides a standardized, fast and accurate process to build multi-strain GEMs and, in doing so,
 it improves the current understanding of potential metabolisms.
F. D. Reboiras, Gaspar de Grajal (1530–1575). Frühneuzeitliche Bibelwissenschaft im Streit mit Universität und Inquisition, 1998
Creators: name: Le Brun, J.
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 26 Nr. 2 (1999)
Projective dimension in filtrated K-theory
Creators: name: Bentmann, Rasmus
Publisher: name: arXiv
Year: 2012
Subjects: subject: Operator Algebras (math.OA)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 18G20, 19K35, 46L80

description: Under mild assumptions, we characterise modules with projective resolutions of length n in the target category of filtrated K-theory over a finite topological space in terms of two conditions involving certain Tor-groups. We show that the filtrated K-theory of any separable C*-algebra over any topological space with at most four points has projective dimension 2 or less. We observe that this implies a universal coefficient theorem for rational equivariant KK-theory over these spaces. As a contrasting example, we find a separable C*-algebra in the bootstrap class over a certain five-point space, the filtrated K-theory of which has projective dimension 3. Finally, as an application of our investigations, we exhibit Cuntz-Krieger algebras which have projective dimension 2 in filtrated K-theory over their respective primitive spectrum.
description: 16 pages, 2 figures, revised and final version, results unchanged
Supercurrent Distribution in Real-Space and Anomalous Paramagnetic Response in a Superconducting Quasicrystal
Creators: name: Fukushima, Takumi
name: Takemori, Nayuta
name: Sakai, Shiro
name: Ichioka, Masanori
name: Jagannathan, Anuradha
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We theoretically study the real-space distribution of the supercurrent that flows under a uniform vector potential in a two-dimensional quasiperiodic structure. This is done by considering the attractive Hubbard model on the quasiperiodic Ammann-Beenker structure and studying the superconducting phase within the Bogoliubov-de Gennes mean-field theory. Decomposing the local supercurrent into the paramagnetic and diamagnetic components, we numerically investigate their dependencies on average electron density, temperature, and the angle of the applied vector potential. We find that the diamagnetic current locally violates the current conservation law, necessitating compensation from the paramagnetic current, even at zero temperature. The paramagnetic current shows exotic behaviors in the quasiperiodic structure, such as local currents which are oriented transversally or reversely to that of the applied vector potential.
description: 14 pages, 11 figures
Masking Status: Costume and Ego Veiling in Literature. A Comparative Study in Literary Textures. The Jewish Identity's New Clothes. American-Jewish Clothing Habits in Fiction
Creators: name: Deutsch, Cristina
Publisher: name: figshare
Year: 2023
Subjects: Comparative and transnational literature
Jewish studies

description: Masking Status: Costume and Ego Veiling in Literature. A Comparative Study in Literary Textures. The Jewish Identity's New Clothes. American-Jewish Clothing Habits in Fiction, „Synthesis”, 2012, vol. 39, p. 35-45, ISSN 0256-7245.
Magnetic Order in the Spin-1/2 Kagome Antiferromagnet Vesignieite
Creators: name: Yoshida, Makoto
name: Okamoto, Yoshihiko
name: Takigawa, Masashi
name: Hiroi, Zenji
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report results of magnetic susceptibility and 51V- and 63,65Cu-NMR measurements on a high-quality powder sample of vesignieite BaCu3V2O8(OH)2, a candidate for the spin-1/2 kagome antiferromagnet. We observed a twostep magnetic transition: the appearance of spatially inhomogeneous static moments below 13 K and a long-range order below 9 K. The NMR data indicate a Q = 0 magnetic structure at 1.4 K with the in-plane spin components of three sublattices oriented at nearly 120 degrees to each other and the magnitude of the ordered moments of at least 0.6 muB
description: 5 pages, 5 figures
Conductivity of Strongly Coupled Striped Superconductor
Creators: name: Hutasoit, Jimmy A.
name: Siopsis, George
name: Therrien, Jason
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the conductivity of a strongly coupled striped superconductor using gauge/gravity duality (holography). The study is done analytically, in the large modulation regime. We show that the optical conductivity is inhomogeneous but isotropic at low temperatures. Near but below the critical temperature, we calculate the conductivity analytically at small frequency ω, and find it to be both inhomogeneous and anisotropic. The anisotropy is imaginary and scales like 1/ω. We also calculate analytically the speed of the second sound and the thermodynamic susceptibility.
description: 32 pages
Analytical estimation of the signal to noise ratio efficiency in axion dark matter searches using a Savitzky-Golay filter
Creators: name: Yi, A. K.
name: Ahn, S.
name: Ko, B. R.
name: Semertzidis, Y. K.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The signal to noise ratio efficiency $ε_{\rm SNR}$ in axion dark matter searches has been estimated using large-statistic simulation data reflecting the background information and the expected axion signal power obtained from a real experiment. This usually requires a lot of computing time even with the assistance of powerful computing resources. Employing a Savitzky-Golay filter for background subtraction, in this work, we estimated a fully analytical $ε_{\rm SNR}$ without relying on large-statistic simulation data, but only with an arbitrary axion mass and the relevant signal shape information. Hence, our work can provide $ε_{\rm SNR}$ using minimal computing time and resources prior to the acquisition of experimental data, without the detailed information that has to be obtained from real experiments. Axion haloscope searches have been observing the coincidence that the frequency independent scale factor $ξ$ is approximately consistent with the $ε_{\rm SNR}$. This was confirmed analytically in this work, when the window length of the Savitzky-Golay filter is reasonably wide enough, i.e., at least 5 times the signal window.
description: 14 pages, 7 figures, Accepted for publication in JHEP
Die Mobilisierung des Kostüms. Überlegungen zur         Rolle des Rockes in formeller und halbformeller         Kleidung
Creators: name: Giese, Charlotte
Publisher: name: querelles-net
Year: 2009
Subjects: Körper; Kultur; Macht; Mode; Moderne; Geschlecht; Gender

description: Die seriöse Repräsentation von         Staat und Unternehmen ist untrennbar verbunden mit dem         Herrenanzug und seinem weiblichen Pendant, dem Hosenanzug.         Auch das Kostüm, die Kombination aus Jackett und Rock, ist         an den Herrenanzug angelehnt und war den damaligen         Kleidungskonventionen entsprechend eher da als der         weibliche Hosenanzug. Dieser Beitrag befasst sich mit der         heutigen Bedeutung des Rockes für formal-repräsentative         Anlässe und seinen halbformellen Weiterentwicklungen. Der         Rock wird in urbaner Alltagskleidung zunehmend ersetzt         durch eine Kleidung-Körper-Formation aus enger Hose und         Frauenbein. Die Anpassung des Outfits an das urbane         Mobilitätsverhalten und die Codierung des Kostüms als         weiblich verdrängen ihn zunehmend aus der (halb-)formellen         Alltagskleidung.
description: querelles-net, Jg. 10, Nr. 2 (2009): Mode, Körper
Two-color QCD in a strong magnetic field: The role of the Polyakov loop
Creators: name: Andersen, Jens O.
name: Cruz, Arturo A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study two-color QCD in an external magnetic backround at finite temperature using the Polyakov-loop extended two-flavor two-color NJL model. At T=0, the chiral condensate is calculated and it is found to increase as a function of the magnetic field $B$. In the chiral limit the deconfinement transition lies below the chiral transition for nonzero magnetic fields $B$. At the physical point, the two transitions seem to coincide for field strengths up to $|qB|\approx 5m_π^2$ whereafter they split. The splitting between the two increases as a function of $B$ in both the chiral limit and at the physical point. In the range from zero magnetic field and $|qB|=20 m_π^2$, the transition temperature for the chiral transition increases by approximately 35 MeV, while the transition temperature for deconfinement is essentially constant.
description: 11 pages and 8 figures. v2 matches published version in PRD
Shockley Equation Parameters of Organic Solar Cells derived by Transient Techniques
Creators: name: Foertig, A.
name: Rauh, J.
name: Dyakonov, V.
name: Deibel, C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The Shockley equation (SE), originally derived to describe a p--n junction, was frequently used in the past to simulate current--voltage (j/V) characteristics of organic solar cells (OSC). In order to gain a more detailed understanding of recombination losses, we determined the SE parameters, i.e. the ideality factor and the dark saturation current, from temperature dependent static j/V-measurements on poly(3-hexylthiophene-2,5-diyl)(P3HT):[6,6]-phenyl-C$_{61}$ butyric acid methyl ester (PCBM) bulk heterojunction solar cells. As we show here, these parameters are directly related to charge carrier recombination and become also accessible by transient photovoltage and photocurrent methods in the case of field-independent charge carrier generation. Although determined in very different ways, both SE parameters were found to be identical. The good agreement of static and transient approaches over a wide temperature range demonstrates the validity of the Shockley model for OSC based on material systems satisfying the requirement of field-independent polaron-pair dissociation. In particular, we were able to reproduce the photocurrent at various light intensities and temperatures from the respective nongeminate recombination rates. Furthermore, the temperature dependence of the dark saturation current $j_0$ allowed determining the effective band gap of the photoactive blend perfectly agreeing with the literature values of the energy onset of the photocurrent due to charge transfer absorption. We also present a consistent model directly relating the ideality factor to recombination of free with trapped charge carriers in an exponential density of tail states. We verify this finding by data from thermally stimulated current measurements.
description: 8 pages, 6 figures
„Relax. You’re Dressed!“. Der Herrenanzug im Career         Building und seine Thematisierung in         Musicvideoclips
Creators: name: Schäfer, Gudrun
Publisher: name: querelles-net
Year: 2009
Subjects: Ästhetik; Beruf; Kleidung; Konsum; Kultur; Körper; Macht; Medien; Moderne; Musik; Performanz; Repräsentation; Rollen; Werbung; Geschlecht; Gender

description: Gudrun Schäfer zeigt an Beispielen         aus der aktuellen Zeitschriftenwerbung und aus         Karriereratgebern sowie anhand von zwei aktuellen         Musikvideoclips, dass der Herrenanzug – selbst da, wo er         als problematisches Symbol für Konventionalität fungiert, –         nach wie vor als Referenzpunkt für ‚unangreifbare‘,         universale professionelle Bekleidung gelten kann. Vor allem         als Dresscode für Bewerbungsgespräche wird der Herrenanzug         bzw. das Kostüm oder der Hosenanzug als weibliches Pendant         als ein „Rettungsanker“ in einem Meer von Unsicherheiten         angesehen. Seine Funktion als Symbol männlicher         Souveränität und Universalität wird jedoch zunehmend in         Frage gestellt, und der universale Geltungsanspruch des         Herrenanzugs erodiert: Konventionelle ‚Banker- und         Managerkleidung‘ wird abgelehnt, da die Berufstände durch         die aktuelle Wirtschafts- und Finanzkrise stark in         Misskredit geraten sind. In IT-Berufen geht der Trend zu         deutlich informellerer Kleidung. Der höhere Anteil an         Mitarbeiterinnen führt in einigen Unternehmen dazu, dass         variierte – wenn auch adaptierte – Dresscodes gelten. Nicht         zuletzt ist ein Trend zur stärkeren Körperbetonung und         damit Individualisierung der Anzugmode zu verzeichnen, der         mit der zunehmenden Pflicht zur zur ‚Körperarbeit‘ und         Körperdarstellung auch bei Männern         zusammenhängt.
description: querelles-net, Jg. 10, Nr. 2 (2009): Mode, Körper
Homotopy Theory of Labelled Symmetric Precubical Sets
Creators: name: Gaucher, Philippe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Topology (math.AT)
subject: Category Theory (math.CT)
subject: FOS: Mathematics

description: This paper is the third paper of a series devoted to higher dimensional transition systems. The preceding paper proved the existence of a left determined model structure on the category of cubical transition systems. In this sequel, it is proved that there exists a model category of labelled symmetric precubical sets which is Quillen equivalent to the Bousfield localization of this left determined model category by the cubification functor. The realization functor from labelled symmetric precubical sets to cubical transition systems which was introduced in the first paper of this series is used to establish this Quillen equivalence. However, it is not a left Quillen functor. It is only a left adjoint. It is proved that the two model categories are related to each other by a zig-zag of Quillen equivalences of length two. The middle model category is still the model category of cubical transition systems, but with an additional family of generating cofibrations. The weak equivalences are closely related to bisimulation. Similar results are obtained by restricting the constructions to the labelled symmetric precubical sets satisfying the HDA paradigm.
description: 31 pages ; final version
Very massive stars and Nitrogen emitting galaxies
Creators: name: Vink, Jorick S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Recent studies of high-redshift galaxies with James Webb Space Telescope (JWST), such as GN-z11 at $z=10.6,$ show unexpectedly significant amounts of nitrogen (N) in their spectra. As this phenomenology appears to extend to gravitionally lensed galaxies at Cosmic noon such as the Sunburst Arc at $z=2.37$, as well as globular clusters overall, we suggest that the common ingredient among them are very massive stars (VMSs) with zero-age main sequence (ZAMS) masses in the range of 100-1000 $M_{\odot}$. The He II in the Sunburst Arc might also be the result of the disproportionally large contribution of VMS to the total stellar contribution. We analyse the pros and cons of the previous suggestions, including classical Wolf-Rayet (cWR) stars and supermassive stars (SMSs), to conclude that only our VMS alternative ticks all the relevant boxes. We discuss the VMS mass-loss history via their peculiar vertical evolution in the HR diagram resulting from a self-regulatory effect of these wind-dominated VMSs and we estimate that the large amounts of N present in star-forming galaxies may indeed result from VMSs. We conclude that VMSs should be included in population synthesis and chemical evolution models. Moreover, that it is critical for this to be done self-consistently, as a small error in their mass-loss rates would have dramatic consequences for their stellar evolution, as well as their ionising and chemical feedback.
description: Accepted as an A&A Letter. 5 pages, 2 figures
Nanoscale click-reactive scaffolds from peptide self-assembly.
Creators: name: Guttenplan, Alexander
name: Young, Laurence J
name: Matak Vinkovic, Dijana
name: Kaminski, Clemens
name: Knowles, Tuomas
name: Itzhaki, Laura
Publisher: name: Apollo - University of Cambridge Repository
Year: 2017
Subjects: subject: Azides
subject: Alkynes
subject: Amyloid
subject: Peptides
subject: Prealbumin
subject: Green Fluorescent Proteins
subject: Amino Acid Sequence
subject: Nanotechnology
subject: FOS: Nanotechnology
subject: Click Chemistry

description: Background Due to their natural tendency to self-assemble, proteins and peptides are important components for organic nanotechnology. One particular class of peptides of recent interest is those that form amyloid fibrils, as this self-assembly results in extremely strong, stable quasi-one-dimensional structures which can be used to organise a wide range of cargo species including proteins and oligonucleotides. However, as the amyloid state is accessible to a large number of proteins via misfolding, assembly of peptides already conjugated to proteins is limited to certain cargo species. Therefore, a general method is needed to conjugate proteins and other molecules to amyloid fibrils after the fibrils have self-assembled. Results Here we have designed an amyloidogenic peptide based on the TTR105-115 fragment of transthyretin to form fibrils that display an alkyne functionality, important for bioorthogonal chemical reactions, on their surface. The fibrils were formed and reacted both with an azide-containing amino acid and with an azide-functionalised dye by the Huisgen azidoalkyne cycloaddition, one of the class of “click” reactions. Mass spectrometry and total internal reflection fluorescence optical microscopy were used to show that peptides incorporated into the fibrils reacted with the azide while maintaining the structure of the fibril. These click-functionalised amyloid fibrils have a variety of potential uses in materials and as scaffolds for bionanotechnology. Discussion Although previous studies have produced peptides that can both form amyloid fibrils and undergo “click”-type reactions, this is the first example of amyloid fibrils that can undergo such a reaction after they have been formed. Our approach has the advantage that self-assembly takes place before click functionalization rather than pre-functionalised building blocks self-assembling. Therefore, the molecules used to functionalise the fibril do not themselves have to be exposed to harsh, amyloid-forming conditions. This means that a wider range of proteins can be used as ligands in this process. For instance, the fibrils can be functionalised with a green fluorescent protein that retains its fluorescence after it is attached to the fibrils, whereas this protein loses its fluorescence if it is exposed to the conditions used for aggregation.
Weyl asymptotics: From closed to open systems
Creators: name: Potzuweit, A.
name: Weich, T.
name: Barkhofen, S.
name: Kuhl, U.
name: Stoeckmann, H. -J.
name: Zworski, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present microwave experiments on the symmetry reduced 5-disk billiard studying the transition from a closed to an open system. The measured microwave reflection signal is analyzed by means of the harmonic inversion and the counting function of the resulting resonances is studied. For the closed system this counting function shows the Weyl asymptotic with a leading exponent equal to 2. By opening the system successively this exponent decreases smoothly to an non-integer value. For the open systems the extraction of resonances by the harmonic inversion becomes more challenging and the arising difficulties are discussed. The results can be interpreted as a first experimental indication for the fractal Weyl conjecture for resonances.
description: 9 pages, 7 figures
Correlation Driven Magnetic Frustration and Insulating Behavior of TiF$_3$
Creators: name: Fernando, Gayanath W.
name: Sheets, Donal
name: Hancock, Jason
name: Ernst, Arthur
name: Geilhufe, R. Matthias
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We investigate the halide perovskite TiF$_3$, renowned for its intricate interplay between structure, electronic correlations, magnetism, and thermal expansion. Despite its simple structure, understanding its low-temperature magnetic behavior has been a challenge. Previous theories proposed antiferromagnetic ordering. In contrast, experimental signatures for an ordered magnetic state are absent down to 10~K. Our current study has successfully reevaluated the theoretical modeling of TiF$_3$, unveiling the significance of strong electronic correlations as the key driver for its insulating behavior and magnetic frustration. In addition, our frequency-dependent optical reflectivity measurements exhibit clear signs of an insulating state. Analysis of the calculated magnetic data gives an antiferromagnetic exchange coupling with a net Weiss temperature of order 25~K as well as a magnetic response consistent with a $S$=1/2 local moment per Ti$^{3+}$. Yet, the system shows no susceptibility peak at this temperature scale and appears free of long-range antiferromagnetic order down to 1~K. Extending ab initio modeling of the material to larger unit cells shows a tendency for relaxing into a non-collinear magnetic ordering, with a shallow energy landscape between several magnetic ground states, promoting the status of this simple, nearly cubic perovskite structured material as a candidate spin liquid.
description: 6 pages, 5 figures
Precise 3D track reconstruction algorithm for the ICARUS T600 liquid argon time projection chamber detector
Creators: name: Antonello, M.
name: Baibussinov, B.
name: Benetti, P.
name: Calligarich, E.
name: Canci, N.
name: Centro, S.
name: Cesana, A.
name: Cieslik, K.
name: Cline, D. B.
name: Cocco, A. G.
name: Dabrowska, A.
name: Dequal, D.
name: Dermenev, A.
name: Dolfini, R.
name: Farnese, C.
name: Fava, A.
name: Ferrari, A.
name: Fiorillo, G.
name: Gibin, D.
name: Gninenko, S.
name: Guglielmi, A.
name: Haranczyk, M.
name: Holeczek, J.
name: Ivashkin, A.
name: Kisiel, J.
name: Kochanek, I.
name: Lagoda, J.
name: Mania, S.
name: Menegolli, A.
name: Meng, G.
name: Montanari, C.
name: Otwinowski, S.
name: Piazzoli, A.
name: Picchi, P.
name: Pietropaolo, F.
name: Plonski, P.
name: Rappoldi, A.
name: Raselli, G. L.
name: Rossella, M.
name: Rubbia, C.
name: Sala, P.
name: Scaramelli, A.
name: Segreto, E.
name: Sergiampietri, F.
name: Stefan, D.
name: Stepaniak, J.
name: Sulej, R.
name: Szarska, M.
name: Terrani, M.
name: Varanini, F.
name: Ventura, S.
name: Vignoli, C.
name: Wang, H.
name: Yang, X.
name: Zalewska, A.
name: Zaremba, K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Liquid Argon Time Projection Chamber (LAr TPC) detectors offer charged particle imaging capability with remarkable spatial resolution. Precise event reconstruction procedures are critical in order to fully exploit the potential of this technology. In this paper we present a new, general approach of three-dimensional reconstruction for the LAr TPC with a practical application to track reconstruction. The efficiency of the method is evaluated on a sample of simulated tracks. We present also the application of the method to the analysis of real data tracks collected during the ICARUS T600 detector operation with the CNGS neutrino beam.
description: Submitted to Advances in High Energy Physics
Rotational Response Induced by Electric Toroidal Dipole
Creators: name: Kirikoshi, Akimitsu
name: Hayami, Satoru
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A ferroaxial ordering, which appears without mirror symmetry parallel to an electric axial moment, is described by a ferroic alignment of the electric toroidal (ET) dipole rather than the conventional electric and magnetic dipoles. Although its emergence requires neither spatial inversion nor time-reversal symmetry breakings, unconventional transverse responses between the conjugate physical quantities have been proposed, which are qualitatively different from those in multiferroic systems without both spatial inversion and time-reversal symmetries. We theoretically investigate a general relationship between ferroaxial ordering and its characteristic response tensor. We show that various rotational responses corresponding to an antisymmetric tensor component are related to the ferroaxial ordering based on symmetry analysis. Among them, we propose that second-order nonlinear magnetostriction, where the strain is induced by a second-order magnetic field, is one of the experimental setups to identify the ferroaxial ordering. We show its temperature and magnetic-field-angle dependence by analyzing a fundamental $d$-orbital model under the tetragonal symmetry.
description: 5 pages, 4 figures, 2 tables
Application of three graph Laplacian based semi-supervised learning methods to protein function prediction problem
Creators: name: Tran, Loc
Publisher: name: arXiv
Year: 2012
Subjects: subject: Machine Learning (cs.LG)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Quantitative Methods (q-bio.QM)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences
subject: H.2.8

description: Protein function prediction is the important problem in modern biology. In this paper, the un-normalized, symmetric normalized, and random walk graph Laplacian based semi-supervised learning methods will be applied to the integrated network combined from multiple networks to predict the functions of all yeast proteins in these multiple networks. These multiple networks are network created from Pfam domain structure, co-participation in a protein complex, protein-protein interaction network, genetic interaction network, and network created from cell cycle gene expression measurements. Multiple networks are combined with fixed weights instead of using convex optimization to determine the combination weights due to high time complexity of convex optimization method. This simple combination method will not affect the accuracy performance measures of the three semi-supervised learning methods. Experiment results show that the un-normalized and symmetric normalized graph Laplacian based methods perform slightly better than random walk graph Laplacian based method for integrated network. Moreover, the accuracy performance measures of these three semi-supervised learning methods for integrated network are much better than the best accuracy performance measures of these three methods for the individual network.
description: 16 pages, 9 tables
Ministère de la Défense, Centre d'études d'histoire de la défense. La France et l'opération de Suez de 1956. Actes d'une table ronde organisée sous la direction de M. Vaïsse, 1997
Creators: name: Dülffer, J.
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 26 Nr. 3 (1999)
title: Redox conditions across the Upper Cambrian in Western Newfoundland, Canada
Creators: name: Okafor, Miracle-Mary Chisom
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: The lower part of the Martin Point section (~ 110 m - rhythmites) spans the uppermost Shallow Bay and lowermost Green Point formations (uppermost Franconian‒ lowermost Trempealeauan) of the Cow Head Group (western Newfoundland, Canada). It records two post-SPICE events (SPICE – Steptoean Positive Carbon Isotope Excursion) marked by negative δ¹³Ccarb excursions (NL1 and NL2) that were also documented in South China. The petrographic and chemical screening of the investigated carbonate samples proves the preservation of at least near-primary geochemical signatures. The proxies of weathering (e.g., Mn, Fe, Al, and ΣREE), bioproductivity (e.g., δ¹³Corg, TOC, P, Ni, Zn, and Cu), and paleoredox (e.g., Cr, Th/U, Ce/Ce*) have been utilized to reconstruct the paleoenvironmental conditions during the post-SPICE events. The TOC, P, Ni, Cu, Cr, ΣREE, Mn, Fe, and U enrichment-factor profiles exhibit a positive pulse at the base of NL2 (upper negative δ¹³Ccarb excursion), followed by a drop. This might have resulted from shoaling organic-rich anoxic waters into an oxygenated shallow environment during transgression, which led to a negative shift in the δ¹³Ccarb and a decrease in TOC contents as well as an increase in the δ¹³Corg. The correlated enrichment in Zn and δ¹⁵Norg values and the Ce/Ce* around unity are consistent with the shoaling scenario. A similar scenario seems to be consistent with NL1 (lower negative δ¹³Ccarb excursion) although the lower resolution of correlated proxy variations makes the interpretations based on a few points and to be therefore taken with caution. The upper part of the Martin Point section spans the upper Martin Point Member (upper Furongian, ~90 m) of the Green Point Formation of the Cow Head Group. It records the HERB event (HERB - Hellnmaria-Red Tops Boundary) marked by a negative δ¹³Ccarb excursion at the base of the Econodontus notchpakensis conodont Zone. The HERB paleoenvironmental proxy enrichment profiles exhibit comparable patterns to those of the post-SPICE, which suggests that the HERB event started with a similar scenario of transgression and shoaling of organic-rich anoxic water into the water settings. However, the TOC profile shows a small gradual enrichment (~1 %), above the peak of the excursion, correlated with a broad negative δ¹³Corg shift (~2 ‰), and a positive Al/Ti shift. This may suggest possible minor interruptions by sealevel drop and/or an episode/pulse of enhanced wind-blown inputs of weathered terrigenous material.
C. Eggers, C. Longre, J.-F. Marillier, T. Wyrostek, Les épreuves orales d'allemand aux concours de recrutement. Civilisation, Littérature, Grammaire, Didactique, 1997
Creators: name: Tiemann, D.
Publisher: name: Francia
Year: 2019

description: -
description: Francia, Bd. 26 Nr. 3 (1999)
Computation of 2-D spectra assisted by compressed sampling
Creators: name: Almeida, J.
name: Prior, J.
name: Plenio, M. B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The computation of scientific data can be very time consuming even if they are ultimately determined by a small number of parameters. The principle of compressed sampling suggests that we can achieve a considerable decrease in the computation time by avoiding the need to sample the full data set. We demonstrate the usefulness of this approach at the hand of 2-D spectra in the context of ultra-fast non-linear spectroscopy of biological systems where numerical calculations are highly challenging due to the considerable computational effort involved in obtaining individual data points.
description: 5 pages, 1 figure
Search for particle-stable tetraneutrons in thermal fission of $^{235}$U
Creators: name: Fujioka, Hiroyuki
name: Tomomatsu, Ryutaro
name: Takamiya, Koichi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Background: The existence of a tetraneutron comprising four neutrons has long been debated. Purpose: Motivated by a recent observation of particle-stable tetraneutrons, we investigated potential particle-stable tetraneutron emission in thermal neutron-induced $^{235}$U fission using a nuclear research reactor. Methods: We performed $γ$-ray spectroscopy for a $^{88}$SrCO$_3$ sample irradiated in a reactor core. Stable $^{88}$Sr was expected to produce $^{91}$Sr by a tetraneutron-induced ($^4n$,n) reaction; hence, observation of $γ$-rays followed by $β$ decay of $^{91}$Sr would indicate particle-stable tetraneutron emission. Results: The $γ$-ray spectrum of an irradiated $^{88}$SrCO$_3$ sample did not show any photopeak for $^{91}$Sr. Conclusion: The emission rate of particle-stable tetraneutrons, if they exist, is estimated to be lower than $8\times 10^{-7}$ per fission at the 95% confidence level, assuming the cross-sections of reactions induced by hypothetical particle-stable tetraneutrons.
description: 6 pages, 2 figures, accepted for publication in Phys. Rev. C
Nagaoka states in the SU($n$) Hubbard model
Creators: name: Katsura, Hosho
name: Tanaka, Akinori
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present an extension of Nagaoka's theorem in the SU($n$) generalization of the infinite-$U$ Hubbard model. It is shown that, when there is exactly one hole, the fully polarized states analogous to the ferromagnetic states in the SU(2) Hubbard model are ground states. For a restricted class of models satisfying the connectivity condition, these fully polarized states are the unique ground states up to the trivial degeneracy due to the SU($n$) symmetry. We also give examples of lattices in which the connectivity condition can be verified explicitly. The examples include the triangular, kagome, and hypercubic lattices in $d (\ge 2)$ dimensions, among which the cases of $d=2$ and 3 are experimentally realizable in ultracold atomic gases loaded into optical lattices.
description: 9 pages, 7 figures
Appearance and disappearance of superconductivity in SmFe1-xNixAsO (x = 0.0 to 1.0)
Creators: name: Pal, Anand
name: Mehdi, S. S.
name: Husain, Mushahid
name: Awana, V. P. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Bulk polycrystalline Ni-substituted SmFe1-xNixAsO (x = 0.0 to 1.0) samples are synthesized by solid state reaction route in an evacuated sealed quartz tube. The cell volume decreases with increase of Ni content in SmFe1-xNixAsO, thus indicating successful substitution of smaller ion Ni at Fe site. The resistivity measurements showed that the spin-density-wave (SDW) transition is suppressed drastically with Ni doping and subsequently superconductivity is achieved in a narrow range of x from 0.04 to 0.10 with maximum Tc of 9K at x = 0.06. For higher content of Ni (x > 0.10), the system becomes metallic and superconductivity is not observed down to 2K. The magneto-transport [R(T)H] measurements exhibited the upper critical field [Hc2(0)] of up to 300kOe. The flux flow activation energy (U/kB) is estimated ~98.37K for 0.1T field. Magnetic susceptibility measurements also confirms bulk superconductivity for x = 0.04, 0.06 and 0.08 samples. The lower critical field (Hc1) is around 100Oe at 2K for x = 0.06 sample. Heat capacity CP(T) measurements exhibited a hump like transition pertaining to SDW in Fe planes at around 150K and an AFM ordering of Sm spins below temperature of 5.4K for ordered Sm spins [TN(Sm)]. Though, the SDW hump for Fe spins disappears for Ni doped samples, the TN (Sm) remains unaltered but with a reduced transition height, i.e., decreased entropy. In conclusion, complete phase diagram of SmFe1-xNixAsO (x = 0.0 to 1.0) is studied in terms of its structural, electrical, magnetic and thermal properties.
description: 18 pages text + Figures; comments suggestions welcome (awana@mail.nplindia.org)
Stroke Prevention Rehabilitation Intervention Trial of Exercise (SPRITE) - a randomised feasibility study.
Creators: name: Heron, Neil
name: Kee, Frank
name: Mant, Jonathan
name: Reilly, Philip M
name: Cupples, Margaret
name: Tully, Mark
name: Donnelly, Michael
Publisher: name: Apollo - University of Cambridge Repository
Year: 2017
Subjects: Humans
Ischemic Attack, Transient
Recurrence
Treatment Outcome
Exercise Therapy
Risk Factors
Feasibility Studies
Health Knowledge, Attitudes, Practice
Patient Compliance
Motivation
Recovery of Function
Time Factors
Social Support
Aged
Middle Aged
Home Care Services, Hospital-Based
Northern Ireland
Female
Male
Manuals as Topic
Patient Education as Topic
Stroke
Secondary Prevention
Actigraphy
Protective Factors
Stroke Rehabilitation
Fitness Trackers

description: Background The value of cardiac rehabilitation (CR) after a transient ischaemic attack (TIA) or minor stroke is untested despite these conditions sharing similar pathology and risk factors to coronary heart disease. We aimed to evaluate the feasibility of conducting a trial of an adapted home-based CR programme, ‘The Healthy Brain Rehabilitation Manual’, for patients following a TIA/minor stroke, participants’ views on the intervention and, to identify the behaviour change techniques (BCTs) used. Methods Clinicians were asked to identify patients attending the Ulster Hospital, Belfast within 4 weeks of a first TIA or minor stroke. Those who agreed to participate underwent assessments of physical fitness, cardiovascular risk, quality of life and mental health, before random allocation to: Group (1) standard/usual care; (2) rehabilitation manual or (3) manual plus pedometer. All participants received telephone support at 1 and 4 weeks, reassessment at 6 weeks and an invitation to a focus group exploring views regarding the study. Two trained review authors independently assessed the manual to identify the BCTs used. Results Twenty-eight patients were invited to participate, with 15 (10 men, 5 women; 9 TIA, 6 minor stroke; mean age 69 years) consenting and completing the study. Mean time to enrolment from the TIA/stroke was 20.5 days. Participants completed all assessment measures except VO2max testing, which all declined. The manual and telephone contact were viewed positively, as credible sources of advice. Pedometers were valued highly, particularly for goal-setting. Overall, 36 individual BCTs were used, the commonest being centred around setting goals and planning as well as social support. Conclusion Recruitment and retention rates suggest that a trial to evaluate the effectiveness of a novel home-based CR programme, implemented within 4 weeks of a first TIA/minor stroke is feasible. The commonest BCTs used within the manual revolve around goals, planning and social support, in keeping with UK national guidelines. The findings from this feasibility work have been used to further refine the next stage of the intervention’s development, a pilot study.
Reversible Christoffel factorizations
Creators: name: Bucci, Michelangelo
name: De Luca, Alessandro
name: Zamboni, Luca Q.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68R15

description: We define a family of natural decompositions of Sturmian words in Christoffel words, called *reversible Christoffel* (RC) factorizations. They arise from the observation that two Sturmian words with the same language have (almost always) arbitrarily long Abelian equivalent prefixes. Using the three gap theorem, we prove that in each RC factorization, only 2 or 3 distinct Christoffel words may occur. We begin the study of such factorizations, considered as infinite words over 2 or 3 letters, and show that in the general case they are either Sturmian words, or obtained by a three-interval exchange transformation.
description: 12 pages, submitted. Previous draft presented at RuFiDiM 2011
Behavioural analysis of farmers' and consumers' choice for legume uptake
Creators: name: Toma, Luiza
name: Akaichi, Faical
name: Shrestha, Shailesh
name: Barnes, Andrew
name: Bienkowski, Damian
name: Iannetta, Pietro
Publisher: name: Zenodo
Year: 2020
Subjects: Legume
Farmer
Consumer
Diet
Choice Experiments
Structural Equation Modelling

description: This Deliverable report presents the impact of key factors influencing decision making of farmers and consumers to uptake legume cultivation and, respectively, the choice to include legumes into diets. Results provide guidance on determinants of positive behavioural change towards legume inclusion. Farmer and consumer analyses are based on survey data for the UK farmers and consumers, and findings are discussed comparatively in the context of European production and consumption and main factors potentially influencing behaviours and trends. The report informs how we may operate more effectively to affect behavioural change positively towards legume inclusion.
Uconnect: Synergistic Spectral CT Reconstruction with U-Nets Connecting the Energy bins
Creators: name: Wang, Zhihan
name: Bousse, Alexandre
name: Vermet, Franck
name: Froment, Jacques
name: Vedel, Béatrice
name: Perelli, Alessandro
name: Tasu, Jean-Pierre
name: Visvikis, Dimitris
Publisher: name: arXiv
Year: 2023
Subjects: subject: Medical Physics (physics.med-ph)
subject: FOS: Physical sciences

description: Spectral computed tomography (CT) offers the possibility to reconstruct attenuation images at different energy levels, which can be then used for material decomposition. However, traditional methods reconstruct each energy bin individually and are vulnerable to noise. In this paper, we propose a novel synergistic method for spectral CT reconstruction, namely Uconnect. It utilizes trained convolutional neural networks (CNNs) to connect the energy bins to a latent image so that the full binned data is used synergistically. We experiment on two types of low-dose data: simulated and real patient data. Qualitative and quantitative analysis show that our proposed Uconnect outperforms state-of-art model-based iterative reconstruction (MBIR) techniques as well as CNN-based denoising.
Cascading Failures in Bi-partite Graphs: Model for Systemic Risk Propagation
Creators: name: Huang, Xuqing
name: Vodenska, Irena
name: Havlin, Shlomo
name: Stanley, H. Eugene
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Finance (q-fin.GN)
subject: Physics and Society (physics.soc-ph)
subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: As economic entities become increasingly interconnected, a shock in a financial network can provoke significant cascading failures throughout the system. To study the systemic risk of financial systems, we create a bi-partite banking network model composed of banks and bank assets and propose a cascading failure model to describe the risk propagation process during crises. We empirically test the model with 2007 US commercial banks balance sheet data and compare the model prediction of the failed banks with the real failed banks after 2007. We find that our model efficiently identifies a significant portion of the actual failed banks reported by Federal Deposit Insurance Corporation. The results suggest that this model could be useful for systemic risk stress testing for financial systems. The model also identifies that commercial rather than residential real estate assets are major culprits for the failure of over 350 US commercial banks during 2008-2011.
description: 13 pages, 7 figures
Critical line of the $Φ^4$ theory on a simple cubic lattice in the local potential approximation
Creators: name: Caillol, Jean-Michel
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We establish the critical line of the one-component $Φ^4$ (or Landau-Ginzburg) model on the simple cubic lattice in three dimensions. Our study is performed in the framework of the non-perturbative renormalization group in the local potential approximation. Soft as well as ultra-sharp infra-red regulators are both considered. While the latter gives poor results, the critical line given by the soft cut-off compares well with the Monte Carlo simulations data of Hasenbusch (J. Phys. A : Math. Gen. 32 (1999) 4851) with a relative error of, at worst, $\sim 3. 10^{-3}$ on published points (critical parameters) of this line.
description: Minor revisions: 15 pages, 4 figures, 3 tables
Poietik der Ambivalenz. Zur Sinngenerierung in Tizians ‚Vergewaltigung der Lucretia‘ (1571)
Creators: name: Gludovatz, Karin
Publisher: name: querelles-net
Year: 2010
Subjects: Bildende Kunst; Gewalt; Geschlecht; Gender

description: Im Beitrag wird die ästhetische Struktur von Tizians Vergewaltigung der Lucretia von 1571 analysiert, eines späten Gemäldes, das für Philipp II. entstand. Dieses zeigt – entgegen der Malereitradition – nicht den Selbstmord Lucretias, sondern den vorausgegangenen Gewaltakt durch Tarquinius. Das Geschehen wird dabei ambivalent dargestellt: Motivisch kehrt Tizian die Vehemenz des Übergriffs hervor, auf der ästhetischen Ebene und in der Inszenierung des Akts und seines Umfelds rekurriert er jedoch zugleich auf Darstellungen und Interpretationen, die der Frau einen Anteil an dem Verbrechen zuschreiben wollten. Diese Ambivalenz fordert im hohen Maß die Beteiligung der Betrachter/-innen an der Sinngenerierung heraus, vor allem deren Bilderkenntnis, zielt also auf einen imaginativen Bildspeicher, über den jede/r Betrachter/-in verfügt und auf den er/sie für die Interpretation realer Bilder zurückgreift.
description: querelles-net, Jg. 11, Nr. 3 (2010): Bild