cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Differences in Complement-Dependent Chemotactic Activity Generated by Bullous Pemphigoid and Epidermolysis Bullosa Acquisita Immune Complexes: Demonstration by Leukocytic Attachment and Organ Culture Methods
Creators: name: Inman, Alfred
name: Gammon, W. Ray
name: Wheeler, Clayton
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: Bullous pemphigoid (BP) and epidermolysis bullosa acquisita (EBA) are chronic blistering diseases associated with circulating complement (C)-binding anti-basement membrane zone (BMZ) antibodies and tissue-deposited immune complexes at the BMZ. Experimental evidence supporting a role for C-activating immune complexes in the pathogenesis of dermal inflammation and blisters has been reported in BP but not in EBA. In this study tissue-deposited immune complexes composed of EBA or BP antibodies were tested for generation of C-dependent chemotactic activity and the capacity to cause dermal leukocyte infiltration and dermal-epidermal separation (DES). Chemotactic activity was measured by the leukocyte attachment (LA) method. The capacity of complexes to mediate leukocyte infiltration and DES was examined in vitro using a newly described organ culture method. The results of LA showed immune complexes formed in vivo in EBA skin or in vitro by treating normal human skin with EBA antibodies were significantly more active in mediating C-dependent chemotaxis than complexes in BP skin or those formed with BP antibodies of equivalent or higher C-binding titers. Furthermore EBA antibodies and C caused leukocyte infiltration and DES in organ culture while BP antibodies did not. These results support a role for C- binding anti-BMZ antibodies in the pathogenesis of EBA lesions and demonstrate differences in the capacity of BP and EBA immune complexes to generate C-dependent chemotactic activity. These results suggest factors in addition to C-binding titers are important in the activation of C by BP and EBA immune complexes and suggest chemotactic factors other than those derived from C activation may be important in the recruitment of leukocytes in BP.
Qubit-oscillator relationships in the open quantum Rabi model: the role of dissipation
Creators: name: Di Bello, G.
name: Cangemi, L. M.
name: Cataudella, V.
name: De Filippis, G.
name: Nocera, A.
name: Perroni, C. A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using a dissipative quantum Rabi model, we study the dynamics of a slow qubit coupled to a fast quantum harmonic oscillator interacting with a bosonic bath from weak to strong and ultra-strong coupling regimes. Solving the quantum Heisenberg equations of motion, perturbative in the internal coupling between qubit and oscillator, we derive functional relationships directly linking the qubit coordinates in the Bloch sphere to oscillator observables. We then perform accurate time-dependent Matrix Product State simulations, and compare our results both with the analytical solutions of the Heisenberg equations of motion, and with numerical solutions of a Lindblad master equation, perturbative in the external coupling between oscillator and environment. Indeed, we show that, up to the strong coupling regime, the qubit state accurately fulfills the derived functional relationships. We analyse in detail the case of a qubit starting with generic coordinates on the Bloch sphere of which we evaluate the three components of the Bloch vector through the averages of oscillator observables. Interestingly, a weak to intermediate oscillator coupling to the bath is able to simplify the Bloch vector evaluation since qubit-oscillator relationships are more immediate. Moreover, by monitoring the qubit fidelity with respect to free limit, we find the parameter regime where the combined effect of internal and external couplings is able to hinder the reliable evaluation of the qubit Bloch vector. Finally, in the ultra-strong coupling regime, non-Markovian effects become robust and the dynamics of qubit and oscillator are inextricably entangled making the qubit Bloch vector evaluation difficult.
description: 24 pages, 15 figures
VFTS 243 as predicted by the BPASS fiducial models
Creators: name: Stevance, H. F.
name: Ghodla, S.
name: Richards, S.
name: Eldridge, J. J.
name: Briel, M. M.
name: Tang, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The recent discovery of an unambiguous quiescent BH and main sequence O star companion in VFTS 243 opens the door to new constraints on theoretical stellar evolution and population models looking to reproduce the progenitors of black hole - black hole binaries. Here we show that the Binary Population and Spectral Synthesis fiducial models (BPASSv2.2.1) natively predict VFTS243-like systems: We find that VFTS 243 likely originated from a binary system in a about 15 day orbit with primary mass ranging from 40 to 50 M$_{\odot}$ and secondary star with initial mass 24-25M$_{\odot}$. Additionally we find that the death of the primary star must have resulted in a low energy explosion E < 10$^{50}$ ergs.With a uniform prior we find that the kick velocity of the new-born black hole was <10 km/s. The very low eccentricity reported for VFTS 243 and the subsequent conclusion by the authors that the SN kick must have been very small is in line with the peak in the posterior distribution between 0 and 5 km/s found from our numerical simulations performed with a uniform prior. Finally, the reduced Hobbs kick distribution commonly used in black hole population synthesis is strongly disfavoured.
description: 4 figures, 1 table, Published to MNRAS
Do current lattice Boltzmann methods for diffusion and diffusion-type equations respect maximum principles and the non-negative constraint?
Creators: name: Karimi, S.
name: Nakshatrala, K. B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The lattice Boltzmann method (LBM) has established itself as a valid numerical method in computational fluid dynamics. Recently, multiple-relaxation-time LBM has been proposed to simulate anisotropic advection-diffusion processes. The governing differential equations of advective-diffusive systems are known to satisfy maximum principles, comparison principles, the non-negative constraint, and the decay property. In this paper, it will be shown that current single- and multiple-relaxation-time lattice Boltzmann methods fail to preserve these mathematical properties for transient diffusion-type equations. It will also be shown that the discretization of Dirichlet boundary conditions will affect the performance of lattice Boltzmann methods in meeting these mathematical principles. A new way of discretizing the Dirichlet boundary conditions is also proposed. Several benchmark problems have been solved to illustrate the performance of lattice Boltzmann methods and the effect of discretization of boundary conditions with respect to the aforementioned mathematical properties for transient diffusion and advection-diffusion equations.
Screening in a two-band model for superconducting infinite-layer nickelate
Creators: name: Plienbumrung, Tharathep
name: Daghofer, Maria
name: Schmid, Michael
name: Oleś, Andrzej M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Starting from an effective two-dimensional two-band model for infinite layered nickelates, consisting of bands obtained from $d$ and $s$--like orbitals, we investigate to which extend it can be mapped onto a single-band Hubbard model. We identify screening of the more itinerant $s$-like band as an important driver. In absence of screening one strongly-correlated band gives an antiferromagnetic ground state. For weak screening, the strong correlations push electrons out of the $s$-band so that the undoped nickelate remains a Mott insulator with half filled $d$ orbitals. This regime markedly differs from the observations in high-$T_c$ cuprates and pairing with $s$-wave symmetry would rather be expected in the superconducting state. In contrast, for strong screening, the $s$ and $d_{x^2-y^2}$ bands are both partly filled and couple only weakly, so that one approximately finds a self-doped $d$ band as well as tendencies towards $d$-wave pairing. Particularly in the regime of strong screening mapping to a one-band model gives interesting spectral weight transfers when a second $s$ band is also partly filled. We thus find that both one-band physics and a Kondo-lattice--like regime emerge from the same two-orbital model, depending on the strength of electronic correlations and the size of the $s$-band pocket.
description: 10 pages, 11 figures
The Dark Matter Distribution in the Spiral $NGC~3198$ out to 0.22 $R_{vir}$
Creators: name: Karukes, E. V.
name: Salucci, P.
name: Gentile, G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use recent very extended HI kinematics (out to 48 kpc) along with previous H$α$ kinematics of the spiral galaxy NGC 3198 in order to derive its distribution of dark matter (DM). First, we used a chi-square method to model the rotation curve (RC) of this galaxy in terms of different profiles of its DM distribution: the universal rotation curve (URC) mass model (stellar disk $+$ Burkert halo $+$ gaseous disk), the NFW mass model (stellar disk $+$ NFW halo $+$ gaseous disk) and the baryon $Λ$CDM mass model (stellar disk $+$ NFW halo modified by baryonic physics $+$ gaseous disk). Second, to derive the DM halo density distribution, we applied a new method that does not require a global and often uncertain mass modelling. While according to the standard method, both URC and NFW mass models can account for the RC, the new method instead leads to a density profile that is sharply disagrees with the dark halo density distribution predicted within the Lambda cold dark matter ($Λ$CDM) scenario. We find that the effects of baryonic physics modify the original $Λ$CDM halo densities in such a way that the resulting profile is more compatible with the DM density of NGC 3198 derived using our new method. However, at large distances, r $\sim$ 25 kpc, also this modified baryon $Λ$CDM halo profile appears to create a tension with the derived DM halo density.
description: 11 pages, 11 figures, 1 table Updated to match A&A version
Differentially Private Fréchet Mean on the Manifold of Symmetric Positive Definite (SPD) Matrices with log-Euclidean Metric
Creators: name: Utpala, Saiteja
name: Vepakomma, Praneeth
name: Miolane, Nina
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: Differential privacy has become crucial in the real-world deployment of statistical and machine learning algorithms with rigorous privacy guarantees. The earliest statistical queries, for which differential privacy mechanisms have been developed, were for the release of the sample mean. In Geometric Statistics, the sample Fréchet mean represents one of the most fundamental statistical summaries, as it generalizes the sample mean for data belonging to nonlinear manifolds. In that spirit, the only geometric statistical query for which a differential privacy mechanism has been developed, so far, is for the release of the sample Fréchet mean: the \emph{Riemannian Laplace mechanism} was recently proposed to privatize the Fréchet mean on complete Riemannian manifolds. In many fields, the manifold of Symmetric Positive Definite (SPD) matrices is used to model data spaces, including in medical imaging where privacy requirements are key. We propose a novel, simple and fast mechanism - the \emph{tangent Gaussian mechanism} - to compute a differentially private Fréchet mean on the SPD manifold endowed with the log-Euclidean Riemannian metric. We show that our new mechanism has significantly better utility and is computationally efficient -- as confirmed by extensive experiments.
description: Accepted at TMLR
Massive fermion between two parallel chiral plates
Creators: name: Rohim, Ar
name: Adam, Apriadi Salim
name: Yamamoto, Kazuhiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the system of a massive fermion field confined between two parallel plates, where the properties of both plates are discussed under chiral MIT boundary conditions. We investigate the effects of the chiral angle on the Casimir energy for a massive fermion field with the general momentum. We find that the Casimir energy as a function of the chiral angle is generally symmetric, and the attractive Casimir force in the chiral case is stronger than that in the nonchiral case. In addition, we investigate the approximate Casimir energy for light and heavy mass cases. The behavior of the discrete momentum and changes of spin orientation are also discussed.
description: 16 pages, 4 figures, published version
Trapped mode control in metasurfaces composed of particles with the form birefringence property
Creators: name: Kupriianov, Anton S.
name: Fesenko, Volodymyr I.
name: Evlyukhin, Andrey B.
name: Han, Wei
name: Tuz, Vladimir R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Progress in developing advanced photonic devices relies on introducing new materials, discovered physical principles, and optimal designs when constructing their components. Optical systems operating on the principles of excitation of extremely high-quality factor trapped modes (also known as the bound states in the continuum, BICs) are of great interest since they allow the implementation of laser and sensor devices with outstanding characteristics. In this paper, we discuss how one can utilize the anisotropic properties of novel materials (transition metal dichalcogenides, TMDs), particularly, the bulk molybdenum disulfide (MoS2), to realize the excitation of trapped modes in dielectric metasurfaces. The bulk MoS2 is a thin-film structure in which the light wave behaves the same way as that in the uniaxial anisotropic material with the form birefringence property. Our metasurface is composed of an array of disk-shaped nanoparticles (resonators) made of the MoS2 material under the assumption that the anisotropy axis of MoS2 can be tilted to the rotation axis of the disks. We perform a detailed analysis of eigenwaves and scattering properties of such anisotropic resonators as well as the spectral features of the metasurface revealing dependence of the excitation conditions of the trapped mode on the anisotropy axis orientation of the MoS2 material used.
description: 13 pages, 8 figures
Open-Loop Polarization Mode Dispersion Mitigation for Fibre-Optic Time and Frequency Transfer
Creators: name: Fordell, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The non-reciprocal and dynamic nature of polarization mode dispersion (PMD) in optical fibers can be a problem for accurate time and frequency transfer. Here a simple, passive solution is put forward that is based on transmitting optical pulses with alternating orthogonal polarization. The fast and deterministic polarization modulation means that the PMD noise is pushed far away from the frequencies of interest and upon reflection from a Faraday mirror at the receiver, the pulses have a well defined polarization when they return to the transmitter, which facilitates stable optical phase detection and fibre phase compensation. In an open-loop test setup that uses a mode-locked laser and a simple pulse interleaver, the polarization mode dispersion is shown to be reduced by more than two orders of magnitude
(100225) Minna Louisa Hollier
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Quantum phase detection generalisation from marginal quantum neural network models
Creators: name: Monaco, Saverio
name: Kiss, Oriel
name: Mandarino, Antonio
name: Vallecorsa, Sofia
name: Grossi, Michele
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum machine learning offers a promising advantage in extracting information about quantum states, e.g. phase diagram. However, access to training labels is a major bottleneck for any supervised approach, preventing getting insights about new physics. In this Letter, using quantum convolutional neural networks, we overcome this limit by determining the phase diagram of a model where analytical solutions are lacking, by training only on marginal points of the phase diagram, where integrable models are represented. More specifically, we consider the axial next-nearest-neighbor Ising (ANNNI) Hamiltonian, which possesses a ferromagnetic, paramagnetic and antiphase, showing that the whole phase diagram can be reproduced.
description: 9 pages, 7 figures
Production of Soluble and Cell-Associated Fibronectin by Cultured Keratinocytes
Creators: name: Payne, Richard
name: O'Keefe, Edward
name: Woodley, David
name: Russell, Nancy
name: Castillo, Gabrielle
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1984

description: Fibronectin has been demonstrated in epithelial cell types in culture, but published studies of keratinocytes have shown patterns of fibronectin produced by cells grown in medium with serum, which contains fibronectin. Since plasma fibronectin can bind to cells in vitro, cells grown in serum-supplemented media could show artifactual patterns of cell-associated fibronectin. To study insoluble fibronectin produced by keratinocytes, we plated cells in the absence of feeder layers in medium lacking fibronectin. Medium conditioned by metabolically labeled keratinocytes was studied by immunoprecipitation and by extraction with gelatin-Sepharose. Cells grown in fibronectin-free medium were labeled using affinity-purified anti-fibronectin antibody and fluorescein-conjugated antirabbit IgG. Keratinocytes produced soluble fibronectin, since both immunoprecipitation and adsorption to gelatin-Sepharose detected 35S-methionine-labeled material which comigrated with human plasma fibronectin on sodium dodecyl sulfate polyacrylamide gels. Demonstration of insoluble, cell-associated fibronectin was enhanced in Triton X-100-extracted cells and was seen in subcellular fibrillar arrays at both physiologic and reduced Ca++ concentrations, but in intracellular locations only at physiologic Ca++ concentrations. When cells grown in 1.1 mM Ca++ were removed with Triton X-100, diffusely distributed fibrillar fibronectin remained on the surface of the coverslip. Asymmetric "tracks" of fibronectin left by sparsely plated cells suggested movement. Fibronectin is deposited by keratinocytes on the culture surface and may be modulated by culture conditions.
3D-printed facet-attached optical elements for connecting VCSEL and photodiodes to fiber arrays and multi-core fibers
Creators: name: Maier, Pascal
name: Xu, Yilin
name: Trappen, Mareike
name: Lauermann, Matthias
name: Henniger-Ludwig, Alexandra
name: Kapim, Hermann
name: Kind, Torben
name: Dietrich, Philipp-Immanuel
name: Weber, Achim
name: Blaicher, Matthias
name: Wurster, Clemens
name: Randel, Sebastian
name: Freude, Wolfgang
name: Koos, Christian
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Multicore optical fibers and ribbons based on fiber arrays allow for massively parallel transmission of signals via spatially separated channels, thereby offering attractive bandwidth scaling with linearly increasing technical effort. However, low-loss coupling of light between fiber arrays or multicore fibers and standard linear arrays of vertical-cavity surface-emitting lasers (VCSEL) or photodiodes (PD) still represents a challenge. In this paper, we demonstrate that 3D-printed facet-attached microlenses (FaML) offer an attractive path for connecting multimode fiber arrays as well as individual cores of multimode multicore fibers to standard arrays of VCSEL or PD. The freeform coupling elements are printed in situ with high precision on the device and fiber facets by high-resolution multi-photon lithography. We demonstrate coupling losses down to 0.35 dB along with lateral 1 dB alignment tolerances in excess of 10 $μ$m, allowing to leverage fast passive assembly techniques that rely on industry-standard machine vision. To the best of our knowledge, our experiments represent the first demonstration of a coupling interface that connects individual cores of a multicore fiber to VCSEL or PD arranged in a standard linear array without the need for additional fiber-based or waveguide-based fan-out structures. Using this approach, we build a 3 x 25 Gbit/s transceiver assembly which fits into a small form-factor pluggable module and which fulfills many performance metrics specified in the IEEE 802.3 standard.
The electron foreshock at high-Mach-number nonrelativistic oblique shocks
Creators: name: Bohdan, Artem
name: Weidl, Martin S.
name: Morris, Paul J.
name: Pohl, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In the Universe matter outside of stars and compact objects is mostly composed of collisionless plasma. The interaction of a supersonic plasma flow with an obstacle results in collisionless shocks that are often associated with intense nonthermal radiation and the production of cosmic ray particles. Motivated by simulations of non-relativistic high-Mach-number shocks in supernova remnants, we investigate the instabilities excited by relativistic electron beams in the extended foreshock of oblique shocks. The phase-space distributions in the inner and outer foreshock regions are derived with a Particle-in-Cell simulation of the shock and used as initial conditions for simulations with periodic boundary conditions to study their relaxation towards equilibrium. We find that the observed electron-beam instabilities agree very well with the predictions of a linear dispersion analysis: the electrostatic electron-acoustic instability dominates in the outer region of the foreshock, while the denser electron beams in the inner foreshock drive the gyroresonant oblique-whistler instability.
description: accepted for publication in Physics of Plasmas. 14 pages, 12 figures
(100226) Minna Hollier
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(100228) Charles Herbert James
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
A new approach to the Pontryagin maximum principle for nonlinear fractional optimal control problems
Creators: name: Ali, H. M.
name: Pereira, F. Lobo
name: Gama, S. M. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In this paper, we discuss a new general formulation of fractional optimal control problems whose performance index is in the fractional integral form and the dynamics are given by a set of fractional differential equations in the Caputo sense. We use a new approach to prove necessary conditions of optimality in the form of Pontryagin maximum principle for fractional nonlinear optimal control problems. Moreover, a new method based on a generalization of the Mittag-Leffler function is used to solving this class of fractional optimal control problems. A simple example is provided to illustrate the effectiveness of our main result.
description: Reasons for replacing: (i) change of the email of the corresponding author, (ii) added references dor section 2, (iii) minor English corrections, (iv) typos added
Penanganan Intensif ARDS dan Edema Paru Berat
Creators: name: Hartanto, Tony
name: IASI, Jerman
Publisher: name: Zenodo
Year: 2020
Subjects: Webinar IASI
Covid-19
Diaspora Indonesia
Alat Ventilator

description: Webinar ini diselenggarakan oleh IASI Jerman (Ikatan Ahli dan Sarjana Indonesia Jerman) dan didukung oleh GIZ (Deutsche Gesellschaft für Internationale Zusammenarbeit GmbH atau Lembaga Pelaksana Kerjasama Teknis Pemerintah Jerman) dan CIM (Centrum für Internationale Migration und Entwicklung), yaitu lembaga yang merupakan join operation antara GIZ dengan Dinas Tenaga Kerja Jerman, dan juga didukung oleh Kementerian Kesehatan Republik Indonesia. Webinar kami kali ini merupakan webinar pertama dalam tahap kedua dari rangkaian webinar yang bertemakan‚ 'Penggunaan Alat Ventilator yang Optimal‘. Tujuan dari rangkaian webinar ini, kami ingin berbagi pengalaman, bagaimana penggunaan alat Ventilator digunakan dalam penanganan pasien dengan penyakit paru dan saluran pernafasan, termasuk pada pasien Covid-19. Kami berharap dengan rangkaian Webinar ini, kita bisa bersama sama mengoptimalisasikan penanganan melawan Covid-19 ini.
Creativity in translation: machine translation as a constraint for literary texts
Creators: name: Arenas, Ana Guerberof
name: Toral, Antonio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computation and Language (cs.CL)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: This article presents the results of a study involving the translation of a short story by Kurt Vonnegut from English to Catalan and Dutch using three modalities: machine-translation (MT), post-editing (PE) and translation without aid (HT). Our aim is to explore creativity, understood to involve novelty and acceptability, from a quantitative perspective. The results show that HT has the highest creativity score, followed by PE, and lastly, MT, and this is unanimous from all reviewers. A neural MT system trained on literary data does not currently have the necessary capabilities for a creative translation; it renders literal solutions to translation problems. More importantly, using MT to post-edit raw output constrains the creativity of translators, resulting in a poorer translation often not fit for publication, according to experts.
description: 28 pages, 2 figures, 10 tables
Modeling Volatility and Dependence of European Carbon and Energy Prices
Creators: name: Berrisch, Jonathan
name: Pappert, Sven
name: Ziel, Florian
name: Arsova, Antonia
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Machine Learning (cs.LG)
subject: Econometrics (econ.EM)
subject: Applications (stat.AP)
subject: Computation (stat.CO)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: G.3; J.4; I.6.3
subject: 62H05, 62M10, 91B84

description: We study the prices of European Emission Allowances (EUA), whereby we analyze their uncertainty and dependencies on related energy prices (natural gas, coal, and oil). We propose a probabilistic multivariate conditional time series model with a VECM-Copula-GARCH structure which exploits key characteristics of the data. Data are normalized with respect to inflation and carbon emissions to allow for proper cross-series evaluation. The forecasting performance is evaluated in an extensive rolling-window forecasting study, covering eight years out-of-sample. We discuss our findings for both levels- and log-transformed data, focusing on time-varying correlations, and in view of the Russian invasion of Ukraine.
description: Accepted for publication in Finance Research Letters
A Mouse Monoclonal Antibody Against a Newly Discovered Basement Membrane Component, the Epidermolysis Bullosa Acquisita Antigen
Creators: name: Woodley, David
name: Gammon, W. Ray
name: Queen, Laurinda
name: Paller, Amy
name: Briggaman, Robert
name: O'Keefe, Edward
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: A mouse monoclonal antibody, H3a, directed against the newly described epidermolysis bullosa acquisita (EBA) antigen was obtained using hybridoma techniques. The distribution of the monoclonal antibody is identical to that of the polyclonal serum antibody of patients with EBA. By immunofluorescence, a linear band is seen at the dermal-epidermal junction and, by immunoelectron microscopy, immune reaction products are present in the lamina densa and sublamina densa regions. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis followed by Western immunoblot analysis shows that the monoclonal antibody recognizes 290 and 145 kilodalton proteins present in the immunizing junctional extract, identical with the newly discovered EBA antigen. This monoclonal antibody should be useful in the further isolation and characterization of the EBA antigen.
(100223) Tom Walter Wring
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Spreading and Enhanced Motility of Human Keratinocytes on Fibronectin
Creators: name: Russell, Nancy
name: O'Keefe, Edward
name: Woodley, David
name: Payne, Richard
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1985

description: Soluble human plasma fibronectin or collagen types I or IV, when preincubated with tissue culture plastic dishes, were effective spreading agents for cultured human keratinocytes and increased spreading in a time and concentration-dependent manner. Spreading on fibronectin, but not on type IV collagen, was inhibited by antifibroneetin; therefore, the contribution of fibronectin to the spreading activity of the natural matrix produced by keratinocytes could not be determined using antifibronectin. Fibroneetin mediated spreading at both high (1.1 mM) and low (0.1 mM) Ca++ concentrations, and spreading was not altered by cycloheximide. Insoluble fibronectin deposited by keratinocytes correlated with phagokinetic tracks on particulate gold salts, and added fibronectin, as well as type I collagen and type IV collagen, enhanced motility of keratinocytes. These studies show that production of fibronectin and responsiveness to it are similar in fibroblasts and keratinocytes and demonstrate that fibronectin can act as a matrix factor for keratinocytes.
Interface collisions with diffusive mass transport
Creators: name: Marguet, Bastien
name: Reis, F. D. A. Aarão
name: Pierre-Louis, Olivier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on a linear Langevin model that describes the evolution of the roughness of two interfaces that move towards each other and are coupled by a diffusion field. This model aims at describing the closing of the gap between two two-dimensional material domains during growth, and the subsequent formation of a rough grain boundary. We assume that deposition occurs in the gap between the two domains and that the growth units diffuse and may attach to the edges of the domains. These units can also detach from edges, diffuse, and re-attach elsewhere. For slow growth, the edge roughness increases monotonously and then saturates at some equilibrium value. For fast growth, the roughness exhibits a maximum just before the collision between the two interfaces, which is followed by a minimum. The peak of the roughness can be dominated by statistical fluctuations or by edge instabilities. A phase diagram with three regimes is obtained: slow growth without peak, peak dominated by statistical fluctuations, and peak dominated by instabilities. These results reproduce the main features observed in Kinetic Monte Carlo simulations.
description: 18 pages, 16 Figures
The Kodaira dimension of complex hyperbolic manifolds with cusps
Creators: name: Bakker, Benjamin
name: Tsimerman, Jacob
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 32Q45 (primary), 20H10, 14M27 (secondary)

description: We prove a bound relating the volume of a curve near a cusp in a hyperbolic manifold to its multiplicity at the cusp. The proof uses a hybrid technique employing both the geometry of the uniformizing group and the algebraic geometry of the toroidal compactification. There are a number of consequences: we show that for an $n$-dimensional toroidal compactification $\bar X$ with boundary $D$, $K_{\bar X}+(1-\frac{n+1}{2π}) D$ is nef, and in particular that $K_{\bar X}$ is ample for $n\geq 6$. By an independent algebraic argument, we prove that every hyperbolic manifold of dimension $n\geq 3$ is of general type, and conclude that the phenomena famously exhibited by Hirzebruch in dimension 2 do not occur in higher dimensions. Finally, we investigate the applications to the problem of bounding the number of cusps and to the Green--Griffiths conjecture.
description: Minor typos corrected. Comments welcome
Adult Human Keratinocytes Migrating over Nonviable Dermal Collagen Produce Collagenolytic Enzymes That Degrade Type I and Type IV Collagen
Creators: name: Prunieras, Michel
name: Woodley, David
name: Liotta, Lance
name: Link, William
name: Banes, Albert
name: Kalebec, Tea
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1986

description: Human adult keratinocytes migrating on a nonviable dermal substrate in cultures without fibroblasts induce thinning and degradation of the collagen substrate beneath the migrating epithelium. Further, unconcentrated conditioned medium from the cultures exhibit collagenolytic activity against both type I and type IV collagen which is inhibited by EDTA but not by phenylmethylsulfonyl fluoride or N-ethylmaleimide. Since the migrating epithelium and dermal substrate do not contain fibroblasts, this study shows that migratory keratinocytes in contact with interstitial collagen are capable of producing collagenases against type I and type IV collagen. Moreover, migratory keratinocytes appear to be similar to highly metastatic cells in their ability to degrade basement membrane collagen.
Epidermolysis Bullosa Acquisita Antigen, a Major Cutaneous Basement Membrane Component, Is Synthesized by Human Dermal Fibroblasts and Other Cutaneous Tissues
Creators: name: O'keefe, Edward
name: Tomsick, Robert
name: Reese, Melinda
name: Briggaman, Robert
name: Gammon, W. Ray
name: Woodley, David
name: Falk, Ronald
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1986

description: The epidermolysis bullosa acquisita (EBA) antigen is identified as 2 chains: a 290,000-dalton protein and a less prominent 145,000-dalton protein. The 290,000-dalton chain is synthesized by human keratinocytes in culture. In this study, we show that the 290,000-dalton chain is synthesized by human skin fibroblasts and cutaneous human tumors. In contrast, HT1080 cells, a human sarcoma cell line known to produce matrix molecules (such as laminin and type IV collagen), does not synthesize the EBA antigen. Further, the EBA antigen is absent from serum and blood components, placenta, amnion, lung, and the EHS tumor, a murine sarcoma that produces large amounts of laminin, type IV collagen, nidogen, entactin, and basement membrane proteoglycan but is present in cutaneous tumors of adnexal and epithelial origin. These data suggest that while the EBA antigen is synthesized by both human skin keratinocytes and fibroblasts and is therefore not specific for a primordial germ layer, it does appear to be specific for tissue containing a stratified squamous epithelium.
(100220) Mary Ann Hirst
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
How to Register a Live onto a Liver ? Partial Matching in the Space of Varifolds
Creators: name: Antonsanti, Pierre-Louis
name: Benseghir, Thomas
name: Jugnon, Vincent
name: Ghosn, Mario
name: Chassat, Perrine
name: Kaltenmark, Irène
name: Glaunès, Joan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Medical Physics (physics.med-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: I.5.4; I.4.9
subject: 65D19 (Primary) 68U10, 68U07 (Secondary)

description: Partial shapes correspondences is a problem that often occurs in computer vision (occlusion, evolution in time...). In medical imaging, data may come from different modalities and be acquired under different conditions which leads to variations in shapes and topologies. In this paper we use an asymmetric data dissimilarity term applicable to various geometric shapes like sets of curves or surfaces, assessing the embedding of a shape into another one without relying on correspondences. It is designed as a data attachment for the Large Deformation Diffeomorphic Metric Mapping (LDDMM) framework, allowing to compute a meaningful deformation of one shape onto a subset of the other. We refine it in order to control the resulting non-rigid deformations and provide consistent deformations of the shapes along with their ambient space. We show that partial matching can be used for robust multi-modal liver registration between a Computed Tomography (CT) volume and a Cone Beam Computed Tomography (CBCT) volume. The 3D imaging of the patient CBCT at point of care that we call live is truncated while the CT pre-intervention provides a full visualization of the liver. The proposed method allows the truncated surfaces from CBCT to be aligned non-rigidly, yet realistically, with surfaces from CT with an average distance of 2.6mm(+/- 2.2). The generated deformations extend consistently to the liver volume, and are evaluated on points of interest for the physicians, with an average distance of 5.8mm (+/- 2.7) for vessels bifurcations and 5.13mm (+/- 2.5) for tumors landmarks. Such multi-modality volumes registrations would help the physicians in the perspective of navigating their tools in the patient's anatomy to locate structures that are hardly visible in the CBCT used during their procedures. Our code is available at https://github.com/plantonsanti/PartialMatchingVarifolds.
description: 30 pages, 11 figures, Special Issue: Information Processing in Medical Imaging (IPMI) 2021, Accepted for publication at the Journal of Machine Learning for Biomedical Imaging (MELBA) https://www.melba-journal.org
Epidermolysis Bullosa Acquisita Antigen, a New Major Component of Cutaneous Basement Membrane, Is a Glycoprotein with Collagenous Domains
Creators: name: Reese, Melinda
name: Mechanic, Gerald
name: O'Keefe, Edward
name: Briggaman, Robert
name: Gammon, W. Ray
name: Woodley, David
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1986

description: The epidermolysis bullosa acquisita antigen is a major constituent of the basement membrane zone beneath stratified squamous epithelium. The antigen which is recognized in extracts of skin basement membrane by Western blot analysis with polyclonal or monoclonal antiepidermolysis bullosa acquisita antigen antibodies as 2 chains (a major chain of 290,000 and a minor chain of 145,000) has a native molecular weight over 800,000. Both epidermolysis bullosa acquisita antigen chains contain carbohydrate and the 290K chain is sensitive to collagenase.
On Resilient Behaviors in Computational Systems and Environments
Creators: name: De Florio, Vincenzo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The present article introduces a reference framework for discussing resilience of computational systems. Rather than a property that may or may not be exhibited by a system, resilience is interpreted here as the emerging result of a dynamic process. Said process represents the dynamic interplay between the behaviors exercised by a system and those of the environment it is set to operate in. As a result of this interpretation, coherent definitions of several aspects of resilience can be derived and proposed, including elasticity, change tolerance, and antifragility. Definitions are also provided for measures of the risk of unresilience as well as for the optimal match of a given resilient design with respect to the current environmental conditions. Finally, a resilience strategy based on our model is exemplified through a simple scenario.
description: The final publication is available at Springer via http://dx.doi.org/10.1007/s40860-015-0002-6 The paper considerably extends the results of two conference papers that are available at http://ow.ly/KWfkj and http://ow.ly/KWfgO. Text and formalism in those papers has been used or adapted in the herewith submitted paper
Demystifying the measurement of periodic structures
Creators: name: Nečas, David
name: Yacoot, Andrew
name: Klapetek, Petr
Publisher: name: arXiv
Year: 2022
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Periodic structures are often found in various areas of nanoscience and nanotechnology with many of them being used for metrological purposes either to calibrate instruments, or forming the basis of measuring devices such as encoders. Evaluating the period of one or two-dimensional periodic structures from topography measurements, e.g. performed using scanning probe microscopy (SPM) methods, can be achieved using different methodologies with many grating evaluation methods having been proposed in the past and applied to a handful of examples. The optimum methodology for determining the grating pitch is not immediately obvious. This paper reports the results of extensive large-scale simulations and analysis to evaluate the performance of both direct and Fourier space data processing methods. Many thousands of simulations have been performed on a variety of different gratings under different measurement conditions and including the simulation of defects encountered in real life situations. The paper concludes with a summary of the merits and disadvantages of the methods together with practical recommendations for the measurements of periodic structures and for developing algorithms for processing them.
description: 34 pages, 11 figures, to be submitted to Measurement Science and Technology
Amorphic complexity
Creators: name: Fuhrmann, G.
name: Gröger, M.
name: Jäger, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We introduce amorphic complexity as a new topological invariant that measures the complexity of dynamical systems in the regime of zero entropy. Its main purpose is to detect the very onset of disorder in the asymptotic behaviour. For instance, it gives positive value to Denjoy examples on the circle and Sturmian subshifts, while being zero for all isometries and Morse-Smale systems. After discussing basic properties and examples, we show that amorphic complexity and the underlying asymptotic separation numbers can be used to distinguish almost automorphic minimal systems from equicontinuous ones. For symbolic systems, amorphic complexity equals the box dimension of the associated Besicovitch space. In this context, we concentrate on regular Toeplitz flows and give a detailed description of the relation to the scaling behaviour of the densities of the p-skeletons. Finally, we take a look at strange non-chaotic attractors appearing in so-called pinched skew product systems. Continuous-time systems, more general group actions and the application to cut and project quasicrystals will be treated in subsequent work.
description: 36 pages, 2 figures, added references, minor changes, corrected typos