cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Accuracy controlled data assimilation for parabolic problems
Creators: name: Dahmen, Wolfgang
name: Stevenson, Rob
name: Westerdiep, Jan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35B35, 35B45, 35K20, 35R25, 65F08, 65J20, 65M12, 65M30, 65M60

description: This paper is concerned with the recovery of (approximate) solutions to parabolic problems from incomplete and possibly inconsistent observational data, given on a time-space cylinder that is a strict subset of the computational domain under consideration. Unlike previous approaches to this and related problems our starting point is a regularized least squares formulation in a continuous infinite-dimensional setting that is based on stable variational time-space formulations of the parabolic PDE. This allows us to derive a priori as well as a posteriori error bounds for the recovered states with respect to a certain reference solution. In these bounds the regularization parameter is disentangled from the underlying discretization. An important ingredient for the derivation of a posteriori bounds is the construction of suitable Fortin operators which allow us to control oscillation errors stemming from the discretization of dual norms. Moreover, the variational framework allows us to contrive preconditioners for the discrete problems whose application can be performed in linear time, and for which the condition numbers of the preconditioned systems are uniformly proportional to that of the regularized continuous problem. In particular, we provide suitable stopping criteria for the iterative solvers based on the a posteriori error bounds. The presented numerical experiments quantify the theoretical findings and demonstrate the performance of the numerical scheme in relation with the underlying discretization and regularization.
Deconfined criticality and a gapless $\mathbb{Z}_2$ spin liquid in the square lattice antiferromagnet
Creators: name: Shackleton, Henry
name: Thomson, Alex
name: Sachdev, Subir
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The theory for the vanishing of Néel order in the spin $S=1/2$ square lattice antiferromagnet has been the focus of attention for many decades. A consensus appears to have emerged in recent numerical studies on the antiferromagnet with first and second neighbor exchange interactions (the $J_1$-$J_2$ model): a gapless spin liquid is present for a narrow window of parameters between the vanishing of the Néel order and the onset of a gapped valence bond solid state. We propose a deconfined critical SU(2) gauge theory for a transition into a stable $\mathbb{Z}_2$ spin liquid with massless Dirac spinon excitations; on the other side the critical point, the SU(2) spin liquid (the `$π$-flux' phase) is presumed to be unstable to confinement to the Néel phase. We identify a dangerously irrelevant coupling in the critical SU(2) gauge theory, which contributes a logarithm-squared renormalization. This critical theory is also not Lorentz invariant, and weakly breaks the SO(5) symmetry which rotates between the Néel and valence bond solid order parameters. We also propose a distinct deconfined critical U(1) gauge theory for a transition into the same gapless $\mathbb{Z}_2$ spin liquid; on the other side of the critical point, the U(1) spin liquid (the `staggered flux' phase) is presumed to be unstable to confinement to the valence bond solid. This critical theory has no dangerously irrelevant coupling, dynamic critical exponent $z \neq 1$, and no SO(5) symmetry. All of these phases and critical points are unified in a SU(2) gauge theory with Higgs fields and fermionic spinons which can naturally realize the observed sequence of phases with increasing $J_2/J_1$: Néel, gapless $\mathbb{Z}_2$ spin liquid, and valence bond solid.
description: 49 pages, 10 figures
Additional file 1 of Hepatitis B virus polymerase-specific T cell epitopes shift in a mouse model of chronic infection
Creators: name: Hasanpourghadi, Mohadeseh
name: Novikov, Mikhail
name: Newman, Dakota
name: Xiang, ZhiQuan
name: Zhou, Xiang Yang
name: Magowan, Colin
name: Ertl, Hildegund C. J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1. Table S1. The polymerase amino acid and core sequences from HBV clades A, B, C, and D
Geometric phase with full-wedge and half-wedge rotation in nonlinear frequency conversion
Creators: name: Zhao, Feiyan
name: Lü, Jiantao
name: He, Hexiang
name: Zhou, Yangui
name: Fu, Shenhe
name: Li, Yongyao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: When the quasi-phase matching (QPM) parameters of the $χ^{(2)}$ nonlinear crystal rotate along a closed path, geometric phase will be generated in the signal and idler waves that participate in the nonlinear frequency conversion. In this paper, we study two rotation schemes, full-wedge rotation, and half-wedge rotation, of the QPM parameters in the process of fully nonlinear three-wave mixing. These two schemes can effectively suppress the uncertainty in creating the geometric phase in the nonlinear frequency conversion process when the intensity of the pump is depleted. The finding of this paper provides an avenue toward constant control of the geometric phase in nonlinear optics applications and quantum information processing.
description: 12 Pages, 37 References, and 7 Figures, published on Optics Express
title: Hydrothermal carbonization processes to increase the transportability of plant biomasses
Creators: name: Schlegel, Mathias
name: Ibrahim, Bassel
name: Fras, Józef
name: Kanswohl, Norbert
name: Zosel, Jens
Publisher: name: Publishing House of Poznan University of Technology
Year: 2018

description: Research in Logistics & Production, 8, 2, 169-178
Task inefficiency patterns for a wave equation solver
Creators: name: Schulz, Holger
name: Gadeschi, Gonzalo Brito
name: Rudyy, Oleksandr
name: Weinzierl, Tobias
Publisher: name: arXiv
Year: 2021
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences

description: The orchestration of complex algorithms demands high levels of automation to use modern hardware efficiently. Task-based programming with OpenMP 5.0 is a prominent candidate to accomplish this goal. We study OpenMP 5.0's tasking in the context of a wave equation solver (ExaHyPE) using three different architectures and runtimes. We describe several task-scheduling flaws present in currently available runtimes, demonstrate how they impact performance and show how to work around them. Finally, we propose extensions to the OpenMP standard.
title: Implementation of lean 5s methodology in logistic enterprise
Creators: name: Wojtynek, Lilianna
name: Kulińska, Ewa
name: Dendera-Gruszka, Małgorzata
name: Kulińska, Karolina
Publisher: name: Publishing House of Poznan University of Technology
Year: 2018

description: Research in Logistics & Production, 8, 2, 179-187
Gravitational Wave Recoil and the Retention of Intermediate Mass Black Holes
Creators: name: Holley-Bockelmann, Kelly
name: Gultekin, Kayhan
name: Shoemaker, Deirdre
name: Yunes, Nico
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: During the inspiral and merger of a binary black hole, gravitational radiation is emitted anisotropically due to asymmetries in the merger configuration. This anisotropic radiation leads to a gravitational wave kick, or recoil velocity, as large as ~ 4000 km/sec. We investigate the effect gravitational recoil has on the retention of intermediate mass black holes (IMBH) within Galactic globular clusters. Assuming that our current understanding of IMBH-formation is correct and yields an IMBH-seed in every globular cluster, we find a significant problem retaining low mass IMBHs (1000 $\Msun$) in the typical merger-rich globular cluster environment. Given a uniform black hole spin distribution and orientation and a Kroupa IMF, we find that at most 3% of the globular clusters can retain an IMBH larger than 1000 $\Msun$ today. For a population of black holes that better approximates mass loss from winds and supernovae, we find that 16% of globulars can retain an IMBH larger than 1000 $\Msun$. Our calculations show that if there are black holes of mass $M > 60 \Msun$ in a cluster, repeated IMBH-BH encounters will eventually eject a 1000 $\Msun$ IMBH with greater than 30% probability. As a consequence, a large population of rogue black holes may exist in our Milky Way halo. We discuss the dynamical implications of this subpopulation, and its possible connection to ultraluminous X-ray sources (ULXs).
description: 8 pages, 6 figures. Pick up high resolution version of figure 1 at http://gravity.psu.edu/~kellyhb/kickfigures. Submitted to Astrophysical Journal
Metallicity of Galactic RR Lyrae from Optical and Infrared Light Curves: I. Period-Fourier-Metallicity Relations for Fundamental Mode RR Lyrae
Creators: name: Mullen, Joseph P.
name: Marengo, Massimo
name: Martínez-Vázquez, Clara E.
name: Neeley, Jillian R.
name: Bono, Giuseppe
name: Dall'Ora, Massimo
name: Chaboyer, Brian
name: Thévenin, Frédéric
name: Braga, Vittorio F.
name: Crestani, Juliana
name: Fabrizio, Michele
name: Fiorentino, Giuliana
name: Gilligan, Christina K.
name: Monelli, Matteo
name: Stetson, Peter B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present newly-calibrated period-$ϕ_{31}$-[Fe/H] relations for fundamental mode RR Lyrae stars in the optical and, for the first time, mid-infrared. This work's calibration dataset provides the largest and most comprehensive span of parameter space to date with homogeneous metallicities from $-3
description: Accepted by ApJ, 29 pages, 14 Figures, 4 Tables
Additional file 2 of Hepatitis B virus polymerase-specific T cell epitopes shift in a mouse model of chronic infection
Creators: name: Hasanpourghadi, Mohadeseh
name: Novikov, Mikhail
name: Newman, Dakota
name: Xiang, ZhiQuan
name: Zhou, Xiang Yang
name: Magowan, Colin
name: Ertl, Hildegund C. J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 2. Table S2. Consensus polymerase and core sequences
Double Neutron Stars: Evidence For Two Different Neutron-Star Formation Mechanisms
Creators: name: Heuvel, E. P. J. van den
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Six of the eight double neutron stars known in the Galactic disk have low orbital eccentricities (< 0.27) indicating that their second-born neutron stars received only very small velocity kicks at birth. This is similar to the case of the B-emission X-ray binaries, where a sizable fraction of the neutron stars received hardly any velocity kick at birth (Pfahl et al. 2002). The masses of the second-born neutron stars in five of the six low-eccentricity double neutron stars are remarkably low (between 1.18 and 1.30 Msun). It is argued that these low-mass, low-kick neutron stars were formed by the electron-capture collapse of the degenerate O-Ne-Mg cores of helium stars less massive than about 3.5 Msun, whereas the higher-mass, higher kick-velocity neutron stars were formed by the collapses of the iron cores of higher initial mass. The absence of low-velocity single young radio pulsars (Hobbs et al. 2005) is consistent with the model proposed by Podsiadlowski et al. (2004), in which the electron-capture collapse of degenerate O-Ne-Mg cores can only occur in binary systems, and not in single stars.
description: 9 pages. Invited talk at `The Multicoloured Landscape of Compact Objects and their Explosive Origins', Cefalu', 2006 June 11-24 (AIP Conf. Proc.), eds. L. Burderi et al., in press
Large Scale Self-Similar Skeletal Structure of the Universe
Creators: name: Rantsev-Kartinov, Valentin A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An analysis of the redshift maps of galaxies and quasars has revealed large-scale self-similar skeletal structures of the Universe of the same topology which had been found earlier in a wide range of phenomena, spatial scales and environments. The "cartwheel" type of structure with diameter ~ 1.5 10^27 cm is discovered in this analysis by means of the method of multi-level dynamical contrasting. Similar skeletal structures in size up to 1.5 10^28 cm are found also in the redshift maps of quasars.
description: 10 pages, 14 figures, paper was been represented in 1st Crisis in Cosmology Conference, CCC1
The impact of Springer Compact agreements on OA transformation from a data analysis perspective
Creators: name: Pieper, Dirk
Publisher: name: Zenodo
Year: 2019
Subjects: OpenAPC, Transformative Agreements, Open Access, Springer Compact

description: The OpenAPC initiative was first presented at the 44th LIBER conference 2015. During the INTACT project (2015 – 2018) OpenAPC became the authoritative source for collecting and disseminating APC cost data. For the next phase, funded by the Federal Ministry of Education and Research in Germany, OpenAPC is expanding aims and scope by involving additional bibliometric data and workflows to better estimate and calculate the costs of open access publishing and the ongoing open access transition. The potential of this approach is shown with the example of analysing Springer Compact agreements.

The presentation will demonstrate, to which extend existing Springer Compact agreements have contributed to the open access shares of articles within Springer journals during the last years. With regard to the ongoing DEAL negotiations in Germany, the presentation will also introduce a simulation analysis approach, which answers the hypothetical question what would have happened, if all German corresponding/reprint authors would have published additionally open access in Springer Compact journals during the last years. The results of this analysis can provide some suggestions to improve and adapt open access transition strategies within transformative agreements.
Probing the screening of the Casimir interaction with optical tweezers
Creators: name: Pires, L. B.
name: Ether, D. S.
name: Spreng, B.
name: Araújo, G. R. S.
name: Decca, R. S.
name: Dutra, R. S.
name: Borges, M.
name: Rosa, F. S. S.
name: Ingold, G. -L.
name: Moura, M. J. B.
name: Frases, S.
name: Pontes, B.
name: Nussenzveig, H. M.
name: Reynaud, S.
name: Viana, N. B.
name: Neto, P. A. Maia
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We measure the colloidal interaction between two silica microspheres in aqueous solution in the distance range from $0.2\,μ$m to $0.5\,μ$m with the help of optical tweezers. When employing a sample with a low salt concentration, the resulting interaction is dominated by the repulsive double-layer interaction which is fully characterized. The double-layer interaction is suppressed when adding $0.22\,$M of salt to our sample, thus leading to a purely attractive Casimir signal. When analyzing the experimental data for the potential energy and force, we find good agreement with theoretical results based on the scattering approach. At the distance range probed experimentally, the interaction arises mainly from the unscreened transverse magnetic contribution in the zero-frequency limit, with nonzero Matsubara frequencies providing a negligible contribution. In contrast, such unscreened contribution is not included by the standard theoretical model of the Casimir interaction in electrolyte solutions, in which the zero-frequency term is treated separately as an electrostatic fluctuational effect. As a consequence, the resulting attraction is too weak in this standard model, by approximately one order of magnitude, to explain the experimental data. Overall, our experimental results shed light on the nature of the thermal zero-frequency contribution and indicate that the Casimir attraction across polar liquids has a longer range than previously predicted.
description: 19 pages, 9 figures; updated references; added a detailed discussion of the subtraction procedure leading to the interaction potential
Aluminium Nanowires: Influence of Work Hardening on Conductance Histograms
Creators: name: Yanson, I. K.
name: Shklyarevskii, O. I.
name: van Ruitenbeek, J. M.
name: Speller, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Conductance histograms of work-hardened Al show a series up to 11 equidistant peaks with a period of 1.15 +/- 0.02 of the quantum conductance unit G_0 = 2e^2/h. Assuming the peaks originate from atomic discreteness, this agrees with the value of 1.16 G_0 per atom obtained in numerical calculations by Hasmy et al.
description: 4 pages, 4 figures
Spectroscopy of Rydberg States in Erbium using Electromagnetically Induced Transparency
Creators: name: Trautmann, A.
name: Mark, M. J.
name: Ilzhöfer, P.
name: Edri, H.
name: Arrach, A. E.
name: Maloberti, J. G.
name: Greene, C. H.
name: Robicheaux, F.
name: Ferlaino, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a study of the Rydberg spectrum in \ts{166}Er for series connected to the $4f^{12} (^3H_6) 6s$, $J_c=13/2 $ and $J_c=11/2 $ ionic core states using an all-optical detection based on electromagnetically induced transparency in an effusive atomic beam. Identifying approximately 550 individual states, we find good agreement with a multi-channel quantum defect theory (MQDT) which allows assignment of most states to $ns$ or $nd$ Rydberg series. We provide an improved accuracy for the lowest two ionization thresholds to $E_{\textrm{IP}, J_c = 13/2 } = 49260.750(1)\,$cm$^{-1}$ and $E_{\textrm{IP}, J_c = 11/2 } = 49701.184(1)\,$cm$^{-1}$ as well as the corresponding quantum defects for all observed series. We identify Rydberg states in five different isotopes, and states between the two lowest ionization thresholds. Our results open the way for future applications of Rydberg states for quantum simulation using erbium and exploiting its special open-shell structure.
description: 17 pages, 9 figures
Additional file 3 of Hepatitis B virus polymerase-specific T cell epitopes shift in a mouse model of chronic infection
Creators: name: Hasanpourghadi, Mohadeseh
name: Novikov, Mikhail
name: Newman, Dakota
name: Xiang, ZhiQuan
name: Zhou, Xiang Yang
name: Magowan, Colin
name: Ertl, Hildegund C. J.
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 3. Figure S1. Expression of the gD fusion proteins by the vaccines. The graphs show results of Western blot for CHO-CAR cells infected with 103vp/cells of the AdC6-gDPolC and AdC6-gDPolN vectors or HEK293 cells infected with the same doses of the AdC6-gDCore, AdC7-gDPolC, AdC7-gDPolN or AdC7-gDCore vectors. An AdC vector expressing gp140 of HIV-1 was used as a negative control. An AdC vector expressing a gD-HPV oncoprotein fusion protein was used as a positive control. The blots were probed with an antibody to gD, stripped, and then tested with an antibody to ß-actin as a loading control (not shown)
The impact of radio feedback from active galactic nuclei in cosmological simulations: Formation of disk galaxies
Creators: name: Okamoto, Takashi
name: Nemmen, Rodrigo S.
name: Bower, Richard G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In this paper, we present a new implementation of feedback due to active galactic nuclei (AGN) in cosmological simulations of galaxy formation. We assume that a fraction of jet energy, which is generated by an AGN, is transferred to the surrounding gas as thermal energy. Combining a theoretical model of mass accretion onto black holes with a multiphase description of star-forming gas, we self-consistently follow evolution of both galaxies and their central black holes. The novelty in our model is that we consider two distinct accretion modes: standard radiatively efficient thin accretion disks and radiatively inefficient accretion flows which we will generically refer to as RIAFs; motivated by theoretical models for jet production in accretion disks, we assume that only the RIAF is responsible for the AGN feedback. We find that, after an initial episode of bursting star formation, the accretion rate onto the central black hole drops so that the accretion disk switches to a RIAF structure. At this point, the feedback from the AGN becomes efficient and slightly suppresses star formation in the galactic disk and almost completely halts star formation in the bulge. As a result, the nucleus becomes a stochastically fuelled low-luminosity AGN (Seyfert galaxy) with recurrent short-lived episodes of activity after the star bursts. Our model predicts several properties of the low-luminosity AGN including the bolometric luminosity, jet powers, the effect on kpc-scale of the radio jet and the AGN lifetime, which are in broad agreement with observations of Seyfert galaxies and their radio activity. We also find that the mass ratios between the central black hole and the the host spheroid at z = 0 are ~10^{-3} regardless of the strength of either supernova feedback or AGN feedback. (abridged)
description: 22 pages, 16 figures, accepted version for publication in MNRAS, animation available at http://star-www.dur.ac.uk/~takashi/research/movies.html#agn
Rosa Luxemburg zwischen Ost und West: Instrumentalisierung im Kalten Krieg bis 1990
Creators: name: Weber, Hermann
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Rosa Luxemburg zwischen Ost und West: Instrumentalisierung im Kalten Krieg bis 1990" of MTS 29 (2003).
description: Moving the Social, Vol 29 (2003): Rosa Luxemburg und die Arbeiterbewegung
A case study of university physics students' conceptualization of sound
Creators: name: Linder, Cedric J.
Publisher: name: University of British Columbia
Year: 2010

description: This study identified some of the conceptual problems which physics students often encounter when asked, to explain their understanding of topics studied in their undergraduate physics programme. In particular, the study focused on the area of sound and the associated conceptualizations held by a group of physics graduates who were enrolled in a secondary physics teacher education programme. Three aspects of their understanding were scrutinized: conceptualizations of sound per se and the consistency of these conceptualizations across a variety of contexts; conceptualizations of the factors affecting the speed of sound propagation; and, factors influencing their conceptualizations of the similarities and differences between the physics concepts of sound and light. The approach taken was one embedded in phenomenography, an experientially based research perspective developed at Gothenburg University in Sweden. In general terms, phenomenography is the study of the qualitatively different ways in which people conceptualize various aspects of reality and phenomena. The data source was a set of interviews conducted with the students which incorporated a variety of different contexts. These contexts included theory, experimentation and demonstration. The interview protocol was developed in an extensive pilot study which involved a similar group of students. The outcomes of the study yielded an identification and description of the students conceptualizations of sound and provided insights into how these were strongly mediated by: microscopic and macroscopic explanatory perspectives, intuition, language, and a tendency to view much of physics as abstract applied mathematics. While some contexts appeared to provide visual cues which evoked certain kinds of conceptualizations, most conceptualizations tended not to be specifically contextually dependent. As part of the consequences of the study, a recommendation was made for university physics educators to re-evaluate both what they teach and how they teach. In particular, for potential physics teachers, a conceptual approach to teaching undergraduate physics was proposed.
Variability of Late-time Radio Emission in SLSN PTF10hgi
Creators: name: Hatsukade, Bunyo
name: Tominaga, Nozomu
name: Morokuma, Tomoki
name: Morokuma-Matsui, Kana
name: Tamura, Yoichi
name: Niinuma, Kotaro
name: Hayashi, Masao
name: Matsuda, Yuichi
name: Motogi, Kazuhiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report the time variability of the late-time radio emission in a Type-I superluminous supernova (SLSN), PTF10hgi, at z = 0.0987. The Karl G. Jansky Very Large Array 3 GHz observations at 8.6 and 10 years after the explosion both detected radio emission with a ~40% decrease in flux density in the second epoch. This is the first report of a significant variability of the late-time radio light curve in a SLSN. Through combination with previous measurements in two other epochs, we constrained both the rise and decay phases of the radio light curve over three years, peaking at approximately 8-9 years after the explosion with a peak luminosity of L(3GHz) = 2 x 10^21 W/Hz. Possible scenarios for the origin of the variability are an active galactic nucleus (AGN) in the host galaxy, an afterglow caused by the interaction between an off-axis jet and circumstellar medium, and a wind nebula powered by a newly-born magnetar. Comparisons with models show that the radio light curve can be reproduced by both the afterglow model and magnetar wind nebula model. Considering the flat radio spectrum at 1-15 GHz and an upper limit at 0.6 GHz obtained in previous studies, plausible scenarios are a low-luminosity flat-spectrum AGN or a magnetar wind nebula with a shallow injection spectral index.
description: 9 pages, 4 figures, accepted for publication in ApJ Letters
Combinatorial screening of crystal structure in Ba-Sr-Mn-Ce perovskite oxides with ABO3 stoichiometry
Creators: name: Heo, Su Jeong
name: Zakutayev, Andriy
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: ABO3 oxides with the perovskite-related structures are attracting significant interest due to their promising physical and chemical properties for many applications requiring tunable chemistry, including fuel cells, catalysis, and electrochemical water splitting. Here we report on the crystal structure of the entire family of perovskite oxides with ABO3 stoichiometry, where A and B are Ba, Sr, Mn, Ce. Given the vast size of this chemically complex material system, exploration for stable perovskite-related structures with respect to its constituent elements and annealing temperature is performed by combinatorial pulsed laser deposition and spatially-resolved characterization of composition and structure. As a result of this high-throughput experimental study, we identify hexagonal perovskite-related polytypic transformation as a function of composition in the Ba1-xSrxMnO3 oxides after annealing at different temperatures. Furthermore, a hexagonal perovskite-related polytype is observed in a narrow composition-temperature range of the BaCexMn1-xO3 oxides. In contrast, a tetragonally-distorted perovskite is observed across a wider range of compositions and annealing temperatures in the Sr1-xCexMnO3 oxides. This structure stability is further enhanced along the BaCexMn1-xO3 - Sr1-xCexMnO3 pseudo-binary tie-line at x=0.25 by increasing Ba-incorporation and annealing temperature. These results indicate that the BaCexMn1-xO3 - Sr1-xCexMnO3 pseudo-binary oxide alloys (solid solutions) with tetragonal perovskite structure and broad composition-temperature range of stability are promising candidates for thermochemical water splitting applications.
Geometric Dirac operator on the fuzzy sphere
Creators: name: Lira-Torres, Evelyn
name: Majid, Shahn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We construct a Connes spectral triple or `Dirac operator' on the non-reduced fuzzy sphere $C_λ[S^2]$ as realised using quantum Riemannian geometry with a central quantum metric $g$ of Euclidean signature and its associated quantum Levi-Civita connection. The Dirac operator is characterised uniquely up to unitary equivalence within our quantum Riemannian geometric setting and an assumption that the spinor bundle is trivial and rank 2 with a central basis. The spectral triple has KO dimension 3 and in the case of the round metric, essentially recovers a previous proposal motivated by rotational symmetry.
description: 16 pages AMSLATEX no figures; minor revision, added sample computation of a Connes spectral distance in the concluding remarks
Y-formalism and $b$ ghost in the Non-minimal Pure Spinor Formalism of Superstrings
Creators: name: Oda, Ichiro
name: Tonin, Mario
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present the Y-formalism for the non-minimal pure spinor quantization of superstrings. In the framework of this formalism we compute, at the quantum level, the explicit form of the compound operators involved in the construction of the $b$ ghost, their normal-ordering contributions and the relevant relations among them. We use these results to construct the quantum-mechanical $b$ ghost in the non-minimal pure spinor formalism. Moreover we show that this non-minimal $b$ ghost is cohomologically equivalent to the non-covariant $b$ ghost.
description: 42 pages, no figures
Additional file 1 of Catalase deficiency facilitates the shuttling of free fatty acid to brown adipose tissue through lipolysis mediated by ROS during sustained fasting
Creators: name: Dutta, Raghbendra Kumar
name: Lee, Joon No
name: Maharjan, Yunash
name: Park, Channy
name: Choe, Seong-Kyu
name: Ho, Ye-Shih
name: Park, Raekil
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 60506 Virology
subject: Computational Biology

description: Additional file 1: Fig. S1. Catalase expression was specifically increased during sustained fasting. Fig. S2. The expression of catalase was successfully depleted in mice. Fig. S3. Sustained fasting decreased the level of free fatty acid in serum of catalase KO mice. Fig. S4. Catalase deficiency during sustained fasting did not induce inflammatory response, and lipodystrophy in adipocytes. Fig. S5. Catalase deficiency during sustained fasting did not show any morphological change in BAT. Fig S6. Catalase activity was significantly increased during sustained fasting with no change in other antioxidant enzyme. Fig. S7. Lipolysis by isoproterenol increased the peroxisomal enzyme in primary BAT of catalase KO mice. Table S1. List of antibodies used in this study. Table S2. List of primer sequence used for Q-PCR.
Le rôle de la Communauté Européenne du Charbon et de l’Acier dans le développement des politiques de reconversion industrielle et d’essor économique régional
Creators: name: Leboutte, René
Publisher: name: Moving the Social
Year: 2014

description: This is the contribution "Le rôle de la Communauté Européenne du Charbon et de l’Acier dans le développement des politiques de reconversion industrielle et d’essor économique régional" of MTS 30 (2003).
description: Moving the Social, Vol 30 (2003): Strukturwandel aus vergleichender regionaler Perspektive nach 1945
A multi-transition molecular line study of candidate massive young stellar objects associated with methanol masers
Creators: name: Szymczak, M.
name: Bartkiewicz, A.
name: Richards, A. M. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We characterize the molecular environment of candidate massive young stellar objects (MYSOs) signposted by methanol masers. Single pixel observations of 10 transitions of HCO^+, CO and CS isotopomers were carried out, using the IRAM 30m telescope. We studied a sample of 28 targets for which the 6.7GHz maser emission positions are known with a sub-arcsecond accuracy. The systemic velocity inferred from the optically thin lines agrees within 3km/s with the central velocity of the maser emission for most of the sources. About 64% of the sources show line wings in one or more transitions of CO, HCO^+ and CS species, indicating the presence of molecular outflows. Comparison of the widths of line wings and methanol maser emission suggests that the 6.7GHz maser line traces the environment of MYSO of various kinematic regimes. Therefore conditions conducive for the methanol maser can exist in the inner parts of molecular clouds or circumstellar discs as well as in the outer parts associated with molecular outflows. Calculations of the physical conditions based on the CO and HCO^+ lines and the CS line intensity ratios refine the input parameters for maser models.
description: 9 pages, 4 figures, accepted in A&A
Accelerating Quantitative Susceptibility Mapping using Compressed Sensing and Deep Neural Network
Creators: name: Gao, Yang
name: Cloos, Martijn
name: Liu, Feng
name: Crozier, Stuart
name: Pike, G. Bruce
name: Sun, Hongfu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Quantitative susceptibility mapping (QSM) is an MRI phase-based post-processing method that quantifies tissue magnetic susceptibility distributions. However, QSM acquisitions are relatively slow, even with parallel imaging. Incoherent undersampling and compressed sensing reconstruction techniques have been used to accelerate traditional magnitude-based MRI acquisitions; however, most do not recover the full phase signal due to its non-convex nature. In this study, a learning-based Deep Complex Residual Network (DCRNet) is proposed to recover both the magnitude and phase images from incoherently undersampled data, enabling high acceleration of QSM acquisition. Magnitude, phase, and QSM results from DCRNet were compared with two iterative and one deep learning methods on retrospectively undersampled acquisitions from six healthy volunteers, one intracranial hemorrhage and one multiple sclerosis patients, as well as one prospectively undersampled healthy subject using a 7T scanner. Peak signal to noise ratio (PSNR), structural similarity (SSIM) and region-of-interest susceptibility measurements are reported for numerical comparisons. The proposed DCRNet method substantially reduced artifacts and blurring compared to the other methods and resulted in the highest PSNR and SSIM on the magnitude, phase, local field, and susceptibility maps. It led to 4.0% to 8.8% accuracy improvements in deep grey matter susceptibility than some existing methods, when the acquisition was accelerated four times. The proposed DCRNet also dramatically shortened the reconstruction time by nearly 10 thousand times for each scan, from around 80 hours using conventional approaches to only 30 seconds.
description: 10 figures
Bericht über die Tätigkeit des Projekts zur Erforschung des SPD-Unternehmensbereichs nach 1945
Creators: name: Rudolph, Karsten
name: Fattmann, Rainer
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Bericht über die Tätigkeit des Projekts zur Erforschung des SPD-Unternehmensbereichs nach 1945" of MTS 31 (2004).
description: Moving the Social, Vol 31 (2004): Forschungen und Forschungsberichte
Silicon Photonics in Optical Access Networks for 5G Communications
Creators: name: Guan, Xun
name: Shi, Wei
name: Liu, Jia
name: Tan, Peng
name: Slevinsky, Jim
name: Rusch, Leslie A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Only radio access networks can provide connectivity across multiple antenna sites to achieve the great leap forward in capacity targeted by 5G. Optical fronthaul remains a sticking point in that connectivity, and we make the case for analog radio over fiber signals and an optical access network smartedge to achieve the potential of radio access networks. The edge of the network would house the intelligence that coordinates wireless transmissions to minimize interference and maximize throughput. As silicon photonics provides a hardware platform well adapted to support optical fronthaul, it is poised to drive smart edge adoption. We draw out the issues in adopting oursolution, propose a strategy for network densification, and cite recent demonstrations to support our approach.
description: 6 pages, 5 figures, accepted to IEEE communication magazine
Plasmaneutrino spectrum
Creators: name: Odrzywolek, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Spectrum of the neutrinos produced in the massive photon and longitudal plasmon decay process has been computed with four levels of approximation for the dispersion relations. Some analytical formulae in limiting cases are derived. Interesting conclusions related to previous calculations of the energy loss in stars are presented. High energy tail of the neutrino spectrum is shown to be proportional to exp(-E/kT), where E is the neutrino energy and kT is the temperature of the plasma.
description: 9 pages, 6 figures, submitted to epjc
Quadratic BSDEs with random terminal time and elliptic PDEs in infinite dimension
Creators: name: Briand, Philippe
name: Confortola, Fulvia
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H20, 60H30

description: In this paper we study one dimensional backward stochastic differential equations (BSDEs) with random terminal time not necessarily bounded or finite when the generator F(t,Y,Z) has a quadratic growth in Z. We provide existence and uniqueness of a bounded solution of such BSDEs and, in the case of infinite horizon, regular dependence on parameters. The obtained results are then applied to prove existence and uniqueness of a mild solution to elliptic partial differential equations in Hilbert spaces.
Additional file 1 of Harnessing technology to enable all women mobility in labour and birth: feasibility of implementing beltless non-invasive fetal ECG applying the NASSS framework
Creators: name: Fox, Deborah
name: Coddington, Rebecca
name: Scarf, Vanessa
name: Bisits, Andrew
name: Lainchbury, Anne
name: Woodworth, Rachael
name: Maude, Robyn
name: Foureur, Maralyn
name: Sandall, Jane
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. The Philips Avalon Beltless solution pictured here is attached to the woman’s abdomen using five small adhesive electrodes similar to those used for adult cardiac monitoring by electrocardiogram (ECG). Signals are transmitted via a small pod that is similar in size to a matchbox. Unlike the CTG, once applied, the wearable device should not require adjustment by the midwife when the woman mobilises or her fetus changes position. The beltless solution records and digitises data pertaining to the fetal heart rate, maternal heart rate and uterine activity, transmitting data wirelessly from the pod (attached to the woman’s abdomen) to the base station. Although different technology is used to collect the data versus conventional CTG monitoring, the base station is compatible with existing CTG machinery and infrastructure installed in the majority of Australian hospitals. No additional skills or knowledge are required from clinicians to interpret the visual data, which appear almost identical to the data produced by a CTG.
Cognitive processes and interpreting expertise: Autonomous exercise of master's students
Creators: name: Ghiselli, Serena
Publisher: name: Zenodo
Year: 2021
Subjects: Interpreter training
interpreting exercise
skill acquisition
working memory
selective attention

description: The present paper describes the results of a part of a PhD project about working memory (Baddeley & Hitch 1974; Baddeley 2000; Gerver 1975; 1976; Padilla Benítez 1995) and selective attention (Cowan 2000; Moser-Mercer 2000; Seeber 2011; Timarová et al. 2014; 2015) in the training of conference interpreters.
 In this experimental study, data on autonomous interpreting exercises were collected. The study group was formed of interpreting students of the master’s degree in interpreting of the University of Bologna and can be divided into two subgroups, one subgroup starting the course in 2015 (27) and the other in 2016 (22). The
 hypothesis was that time devoted to exercise and the type of activities done during self-study would contribute to the improvement of working memory and selective attention, which were measured by a battery of psychological tests. Before the description of empirical data, the paper includes a review of the main studies on skill acquisition (Ackerman 1988; Anderson 1995; Ericsson 2000; Von Bastian & Oberauer 2014) and on cognitive training methods in interpreter training (van Dam 1989; Dollerup & Loddegaard 1992; Benítez 2002; Gillies 2013; Andres & Behr 2015; Yenkimaleki & van Heuven 2013; 2017; Setton & Dawrant 2016a,b).
Non-minimal Wu-Yang wormhole
Creators: name: Balakin, Alexander B.
name: Sushkov, Sergey V.
name: Zayats, Alexei E.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss exact solutions of three-parameter non-minimal Einstein-Yang-Mills model, which describe the wormholes of a new type. These wormholes are considered to be supported by SU(2)-symmetric Yang-Mills field, non-minimally coupled to gravity, the Wu-Yang ansatz for the gauge field being used. We distinguish between regular solutions, describing traversable non-minimal Wu-Yang wormholes, and black wormholes possessing one or two event horizons. The relation between the asymptotic mass of the regular traversable Wu-Yang wormhole and its throat radius is analysed.
description: 9 pages, 2 figures, typos corrected, 2 references added
Additional file 1 of Muscle strength, an independent determinant of glycemic control in older adults with long-standing type 2 diabetes: a prospective cohort study
Creators: name: Koo, Bo Kyung
name: Moon, Seoil
name: Moon, Min Kyong
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: Additional file 1: Table S1. HbA1c level at the time point of each outcome. Table S2. Baseline clinical characteristics according to the secondary outcome. Table S3. Determinants of primary and secondary outcome in each sex. Table S4. Cox proportional hazards analysis for aggravation of glucose level according to low handgrip strength. Fig. S1. Cox proportional hazards model with adjustment for age, baseline HbA1c, obesity and duration of DM
Additional file 1 of Predicting acute respiratory distress syndrome in influenza pneumonia patients using delta mean platelet volume
Creators: name: Reangvilaikul, Teeraphat
name: Udompongpaiboon, Piyaphat
name: Vattanavanit, Veerapong
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1. 1. Definitions. Table S1: NEWS; Table S2: SOFA score; Table S3: CURB-65 scoring system; Table S4: PSI. 2. ARDS data. Table S5: Characteristics and clinical parameters of ARDS patients.
Additional file 1 of Identification of new candidate biomarkers to support doxorubicin treatments in canine cancer patients
Creators: name: Walters, Kristine
name: Stornetta, Alessia
name: Jacobs, Foster
name: Villalta, Peter W.
name: Razzoli, Maria
name: Grant, Marianne
name: Zordoky, Beshay
name: Bartolomucci, Alessandro
name: Borgatti, Antonella
name: Balbo, Silvia
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Hematology
subject: Computational Biology

description: Additional file 1: Table S1. Canine cancer patient information.
Plasma Suppression of Large Scale Structure Formation in the Universe
Creators: name: Chen, Pisin
name: Lai, Kwang-Chang
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We point out that during the reionization epoch of the cosmic history, the plasma collective effect among the ordinary matter would suppress the large scale structure formation. The imperfect Debye shielding at finite temperature would induce a residual long-range electrostatic potential which, working together with the baryon thermal pressure, would counter the gravitational collapse. As a result the effective Jean's length, $\tildeλ_J$, is increased by a factor, $\tildeλ_J/λ_J=\sqrt{8/5}$, relative to the conventional one. For scales smaller than the effective Jean's scale the plasma would oscillate at the ion-acoustic frequency. The modes that would be influenced by this effect depend on the starting time and the initial temperature of reionization, but roughly lie in the range $0.5 h{\rm Mpc}^{-1}< k$, which corresponds to the region of the Lyman-$α$ forest from the inter-galactic medium. We predict that in the linear regime of density-contrast growth, the plasma suppression of the matter power spectrum would approach $1-(Ω_{dm}/Ω_m)^2\sim 1-(5/6)^2\sim 30%$.
description: 4 pages and 2 figures