cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symbolic Toolboxes For Differential Geometry and Mathematical Physics
Creators: name: Torre, Charles
name: IAN ANDERSON
Publisher: name: figshare
Year: 2018
Subjects: subject: 10102 Algebraic and Differential Geometry
subject: FOS: Mathematics
subject: 10203 Calculus of Variations, Systems Theory and Control Theory
subject: Geometry
subject: 10105 Group Theory and Generalisations
subject: 10502 Integrable Systems (Classical and Quantum)
subject: 10503 Mathematical Aspects of Classical Mechanics, Quantum Mechanics and Quantum Information Theory
subject: 10504 Mathematical Aspects of General Relativity
subject: 10505 Mathematical Aspects of Quantum and Conformal Field Theory, Quantum Gravity and String Theory
subject: 10207 Theoretical and Applied Mechanics
subject: 20602 Field Theory and String Theory
subject: FOS: Physical sciences
subject: General Relativity
subject: Mechanics

description: The DifferentialGeometry (DG) software provides advanced mathematical functionalities for research and teaching in the areas of differential geometry, Lie theory, general relativity, and geometric methods for differential equations.
The current project will provide additional infrastructure for symbolic computing in differential geometry and its applications; meet specific user community demands; and
explore new areas where symbolic methods have heretofore been unused.
Toolboxes and libraries in the areas of differential geometry, general relativity, exterior differential systems, integrable systems and Lie theory are being created.
title: Analyse der postoperativen Abszedierung nach Extraktionen symptomatischer und asymptomatischer Weisheitszähne – eine retrospektive Kohortenanalyse
Creators: name: Wohlers, Aron
Publisher: name: Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Year: 2023
Subjects: subject: DDC Classification::6 Technik, Medizin, angewandte Wissenschaften :: 61 Medizin und Gesundheit :: 610 Medizin und Gesundheit

description: Hintergrund und Studienziel Die aktuelle Studienlage zu dentogenen Abszessen im Kausalzusammenhang mit der Entfernung von Weisheitszähnen beschränkt sich auf einzelne Fallberichte. Das Ziel der nachfolgenden Studie ist es, ein Risikoprofil für die Entstehung von Abszessen nach der Entfernung von Weisheitszähnen (symptomatisch oder asymptomatisch) zu erstellen. Zudem wird der Einfluss möglicher Kofaktoren, insbesondere Alter, Geschlecht und Vorerkrankungen der Patienten sowie die Lage der Weisheitszähne, eruiert. Methoden Bei der vorliegenden Arbeit handelt es sich um eine monozentrische retrospektive Kohortenstudie. Für die Studie wurden Patienten aus dem Patientengut der Hochschulambulanz der Mund-, Kiefer- und Gesichtschirurgischen Klinik im Universitätsklinikum Erlangen im Zeitraum von 2012 bis 2017 ausgewählt, die sich aufgrund eines dentogenen Abszesses in zeitlichem Zusammenhang mit der Entfernung eines Weisheitszahns vorstellten. Es wurde eruiert, ob der Abszessentwicklung die Entfernung eines asymptomatischen oder symptomatischen Weisheitszahns vorausging und die Patienten wurden demnach retrospektiv einer von zwei Gruppen zugeteilt: Gruppe A (asymptomatischer Weisheitszahn) und Gruppe B (symptomatischer Weisheitszahn). In einer komparativen Analyse der Gruppen wurden folgende Parameter analysiert: Alter, Geschlecht, Vorerkrankungen, Medikation, Indikation zur Weisheitszahnentfernung, Lage der Weisheitszähne, Operationstechnik, Abszesslokalisation, postoperative Zeitspanne bis zur Abszessentstehung, radiologische Diagnostik, Anzahl Operationen, Abszesstherapie, sonstige postoperative Komplikationen und Antibiotikatherapie. Ergebnisse Bei 82 Patienten wurden insgesamt 88 Weisheitszähne entfernt, deren Entfernung in zeitlichem Zusammenhang mit einem postoperativen Abszessgeschehen stand. Im Untersuchungszeitraum kam es häufiger zur Abszedierung nach der Entfernung symptomatischer Weisheitszähne (Gruppe B: n = 53) als nach der Entfernung asymptomatischer Weisheitszähne (Gruppe A: n = 35). Patienten der Untersuchungsgruppe B waren durchschnittlich 11,37 Jahre älter als Patienten der Gruppe A (p = 0,001). Die Abszesse manifestierten sich in beiden Gruppen vermehrt im Unterkiefer (Gruppe A: 91,4 %; Gruppe B: 88,68 %) und waren abhängig von der Lage der Weisheitszähne im Kiefer. Schlussfolgerung Das Risiko der postoperativen Entstehung eines Abszesses ist nach der Entfernung symptomatischer Weisheitszähne gegenüber dem nach der Entfernung asymptomatischer Weisheitszähne erhöht. Das Risiko wird maßgeblich durch folgende Merkmale definiert: Alter, Anamnese/Vorerkrankungen des Patienten und anatomische Lage des Zahnes (Retention, Angulation).
Lattice Sigma Models with Exact Supersymmetry
Creators: name: Catterall, Simon
name: Ghadab, Sofiane
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how to construct lattice sigma models in one, two and four dimensions which exhibit an exact fermionic symmetry. These models are discretized and {\it twisted} versions of conventional supersymmetric sigma models with N=2 supersymmetry. The fermionic symmetry corresponds to a scalar BRST charge built from the original supercharges. The lattice theories possess local actions and in many cases admit a Wilson term to suppress doubles. In the two and four dimensional theorie s we show that these lattice theories are invariant under additional discrete symmetries. We argue that the presence of these exact symmetries ensures that no fine tuning is required to achieve N=2 supersymmetry in the continuum limit. As a concrete example we show preliminary numerical results from a simulation of the O(3) supersymmetric sigma model in two dimensions.
description: 23 pages, 3 figures, formalism generalized to allow for explicit Wilson mass terms. New numerical results added. Version to be published in JHEP
Additional file 1 of CT radiomics facilitates more accurate diagnosis of COVID-19 pneumonia: compared with CO-RADS
Creators: name: Liu, Huanhuan
name: Ren, Hua
name: Wu, Zengbin
name: Xu, He
name: Zhang, Shuhai
name: Li, Jinning
name: Hou, Liang
name: Chi, Runmin
name: Zheng, Hui
name: Chen, Yanhong
name: Duan, Shaofeng
name: Li, Huimin
name: Xie, Zongyu
name: Wang, Dengbin
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer

description: Additional file 1. More detailed information about the imaging parameters of chest CT, radiomics feature extraction, CO-RADS classification, and clinico-radiomics combined model.
Symbolic Toolboxes For Differential Geometry and Mathematical Physics
Creators: name: Torre, Charles
name: IAN ANDERSON
Publisher: name: figshare
Year: 2018
Subjects: subject: 10102 Algebraic and Differential Geometry
subject: FOS: Mathematics
subject: 10203 Calculus of Variations, Systems Theory and Control Theory
subject: Geometry
subject: 10105 Group Theory and Generalisations
subject: 10502 Integrable Systems (Classical and Quantum)
subject: 10106 Lie Groups, Harmonic and Fourier Analysis
subject: 10503 Mathematical Aspects of Classical Mechanics, Quantum Mechanics and Quantum Information Theory
subject: 10504 Mathematical Aspects of General Relativity
subject: 10505 Mathematical Aspects of Quantum and Conformal Field Theory, Quantum Gravity and String Theory
subject: 20602 Field Theory and String Theory
subject: FOS: Physical sciences
subject: General Relativity
subject: Mechanics

description: The DifferentialGeometry (DG) software provides advanced mathematical functionalities for research and teaching in the areas of differential geometry, Lie theory, general relativity, and geometric methods for differential equations.
The current project will provide additional infrastructure for symbolic computing in differential geometry and its applications; meet specific user community demands; and
explore new areas where symbolic methods have heretofore been unused.
 Toolboxes and libraries in the areas of differential geometry, general relativity, exterior differential systems, integrable systems and Lie theory are being created.
Generalized action principle and extrinsic geometry for N=1 superparticle
Creators: name: Bandos, Igor A.
name: Nurmagambetov, Alexei Yu.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is proposed the generalized action functional for N=1 superparticle in D=3,4,6 and 10 space-time dimensions. The superfield geometric approach equations describing superparticle motion in terms of extrinsic geometry of the worldline superspace are obtained on the base of the generalized action. The off-shell superdiffeomorphism invariance (in the rheonomic sense) of the superparticle generalized action is proved. It was demonstrated that the half of the fermionic and one bosonic (super)fields disappear from the generalized action in the analytical basis. Superparticle interaction with Abelian gauge theory is considered in the framework of this formulation. The geometric approach equations describing superparticle motion in Abelian background are obtained.
description: 31 pages. Latex
A new scheme for the Klein-Gordon and Dirac fields on the lattice with axial anomaly
Creators: name: Lorente, M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: Using the method of finite differences a scheme is proposed to solve exactly the Klein-Gordon and Dirac free field equations, in a (1+1)-dimensional lattice. The hamiltonian of the Dirac field is translational invariant, hermitian, avoids fermion doubling, and, for the massless case, preserves global chiral symmetry. Coupling the fermion field to the electromagnetic vector potential we construct a gauge invariant vector current leading to the correct axial anomaly.
description: LaTeX, 17 pages (late submission)
A family of many-body models which are exactly solvable analytically
Creators: name: Fuentes-Schuller, I.
name: Barberis-Blostein, P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a family of many-body models which are exactly solvable analytically. The models are an extended n-body interaction Lipkin-Meshkov-Glick model which considers spin-flip terms which are associated with the interaction of an external classical field which coherently manipulates the state of the system in order to, for example, process quantum information. The models also describe a two-mode Bose-Einstein condensate with a Josephson-type interaction which includes n-particle elastic and inelastic collisions. One of the models corresponds to the canonical two-mode Bose-Einstein Hamitonian plus a term which we argue must be considered in the description of the two-mode condensate. Intriguingly, this extra term allows for an exact and analytical solution of the two-particle collision two-mode BEC problem. Our results open up an arena to study many-body system properties analytically.
description: 4 pages, 2 figures; I. F-S published previously under Fuentes-Guridi
LA PROCEDENCIA DE LA LLAMADA PRISIÓN CIVIL EN EL  ORDENAMIENTO PERUANO
Creators: name: Aldo Zela Villegas
Publisher: name: Zenodo
Year: 2007

description: SUMARIO: I. Introducción. II. ¿Es inconstitucional la prisión civil? II. La regulación de la prisión civil en el ordenamiento nacional. IV. La prisión civil como mecanismos de represión de una conducta procesal. V. La prisión civil como un mecanismo de actuación de resoluciones judiciales. VI. ¿En que casos cabe conceder y ordenar la prisión civil?
Solitons in (1,1)-supersymmetric massive sigma model
Creators: name: Opfermann, A.
name: Papadopoulos, G.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We find the solitons of massive (1,1)-supersymmetric sigma models with target space the groups $SO(2)$ and $SU(2)$ for a class of scalar potentials and compute their charge, mass and moduli space metric. We also investigate the massive sigma models with target space any semisimple Lie group and show that some of their solitons can be obtained from embedding the $SO(2)$ and $SU(2)$ solitons.
description: Phyzzx.tex, 32 pp, 3 figs
Chemical abundances for Hf 2-2, a planetary nebula with the strongest known heavy element recombination lines
Creators: name: Liu, X. -W.
name: Barlow, M. J.
name: Zhang, Y.
name: Bastin, R. J.
name: Storey, P. J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present high quality optical spectroscopic observations of the planetary nebula (PN) Hf 2-2. The spectrum exhibits many prominent optical recombination lines (ORLs) from heavy element ions. Analysis of the H {\sc i} and He {\sc i} recombination spectrum yields an electron temperature of $\sim 900$ K, a factor of ten lower than given by the collisionally excited [O {\sc iii}] forbidden lines. The ionic abundances of heavy elements relative to hydrogen derived from ORLs are about a factor of 70 higher than those deduced from collisionally excited lines (CELs) from the same ions, the largest abundance discrepancy factor (adf) ever measured for a PN. By comparing the observed O {\sc ii} $λ$4089/$λ$4649 ORL ratio to theoretical value as a function of electron temperature, we show that the O {\sc ii} ORLs arise from ionized regions with an electron temperature of only $\sim 630$ K. The current observations thus provide the strongest evidence that the nebula contains another previously unknown component of cold, high metallicity gas, which is too cool to excite any significant optical or UV CELs and is thus invisible via such lines. The existence of such a plasma component in PNe provides a natural solution to the long-standing dichotomy between nebular plasma diagnostics and abundance determinations using CELs on the one hand and ORLs on the other.
description: 12 pages, 5 figures, accepted for publication in the Monthly Notices of the Royal Astronomical Society
title: ADCO, Grènetier de Cîteaux : comptes (1499-1503) (11 H 1173), f. 00373
Creators: name: de la Côte-d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CBMA/CG21/F.PETOT/2019
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: comptes

description: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173). Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Grènetier de Cîteaux : comptes (1499-1503), Archives départementales de la Côte-d'Or, (11 H 1173), f. 00373, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Dynamic Security of Interconnected Electric Power Systems - Volume 1
Creators: name: EL-Shimy, Mohamed
Publisher: name: figshare
Year: 2018
Subjects: subject: 90607 Power and Energy Systems Engineering (excl. Renewable Power)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)

description: Dynamic Security of Interconnected Electric Power Systems - Volume 1
Nambu-Goto string with massive ends at finite temperature
Creators: name: Lambiase, G.
name: Nesterenko, V. V.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that the critical (or deconfinement) temperature for the Nambu-Goto string connecting the point-like masses (quarks) does not depend on the value of these masses. This temperature turns out to be the same as that in the case of string with fixed ends (infinitely heavy immobile quarks).
description: LaTex file, 8 pages
Joint Probabilities Reproducing Three EPR Experiments On Two Qubits
Creators: name: Roy, S. M.
name: Atkinson, D.
name: Auberson, G.
name: Mahoux, G.
name: Singh, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An eight parameter family of the most general nonnegative quadruple probabilities is constructed for EPR-Bohm-Aharonov experiments when only 3 pairs of analyser settings are used. It is a simultaneous representation of 3 Bohr-incompatible experimental configurations valid for arbitrary quantum states.
description: Typo corrected in abstract
$\mathcal O(10) M_\odot$ primordial black holes and string axion dark matter
Creators: name: Inomata, Keisuke
name: Kawasaki, Masahiro
name: Mukaida, Kyohei
name: Tada, Yuichiro
name: Yanagida, Tsutomu T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences
subject: 85A40, 83C57, 83C35

description: LIGO-Virgo collaboration has found black holes as heavy as $M \sim 30M_\odot$ through the detections of the gravitational waves emitted during their mergers. Primordial black holes (PBHs) produced by inflation could be an origin of such events. While it is tempting to presume that these PBHs constitute all Dark Matter (DM), there exists a number of constraints for PBHs with $\mathcal{O} (10) M_\odot$ which contradict with the idea of PBHs as all DM. Also, it is known that weakly interacting massive particle (WIMP) that is a common DM candidate is almost impossible to coexist with PBHs. These observations motivate us to pursue another candidate of DM. In this paper, we assume that the string axion solving the strong CP problem makes up all DM, and discuss the coexistence of string axion DM and inflationary PBHs for LIGO events.
description: 12 pages, 8 figures; v2: published version
Evaluating backreaction with the ellipsoidal collapse model
Creators: name: Montanari, Francesco
name: Rasanen, Syksy
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We evaluate the effect of structure formation on the average expansion rate with a statistical treatment where density peaks and troughs are modelled as homogeneous ellipsoids. This extends earlier work that used spherical regions. We find that the shear and the presence of filamentary and planar structures have only a small impact on the results. The expansion rate times the age of the universe $Ht$ increases from 2/3 to 0.83 at late times, in order of magnitude agreement with observations, although the change is slower and takes longer than in the real universe. We discuss shortcomings that have to be addressed for this and similar statistical models in the literature to develop into realistic quantitative treatment of backreaction.
description: 30 pages, 14 figures. v2: Published version. Revised a figure, fixed typos, clarified text
Properties of Thermal Glueballs
Creators: name: Ishii, Noriyoshi
name: Suganuma, Hideo
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study the properties of the 0++ glueball at finite temperature using SU(3) quenched lattice QCD. We find a significant thermal effects near T_c. We perform the χ^2 fit analyses adopting two Ansaetze for the spectral function, i.e., the conventional narrow-peak Ansatz and an advanced Breit-Wigner Ansatz. The latter is an extension of the former, taking account of the appearance of the thermal width at T>0. We also perform the MEM analysis. These analyses indicate that the thermal effect on the glueball is a significant thermal-width broadening Γ(T_c) \sim 300 MeV together with a modest reduction in the peak center Δω_0(T_c) \sim 100 MeV.
description: A talk presented at International Conference on Color Confinement and Hadrons in Quantum Chromodynamics --Confinement 2003--, Wako, Japan, 21-24 July 2003, 5 pages, 3 figures
Updated status of Renewable and Sustainable Energy Projects in Algeria
Creators: name: EL-Shimy, Mohamed
name: Nadjem Bailek
name: Kada Bouchouicha
name: Abdeldjalil Slimani
Publisher: name: figshare
Year: 2018
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Updated status of Renewable and Sustainable Energy Projects in Algeria
Studying the effect of Polarisation in Compton scattering in the undergraduate laboratory
Creators: name: Knights, P.
name: Ryburn, F.
name: Tungate, G.
name: Nikolopoulos, K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics Education (physics.ed-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: An experiment for the advanced undergraduate laboratory allowing students to directly observe the effect of photon polarisation on Compton scattering is described. An initially unpolarised beam of photons is polarised via Compton scattering and analysed through a subsequent scattering. The experiment is designed to use equipment typically available at an undergraduate physics laboratory. The experimental results are compared with a Geant4 simulation and geometry effects are discussed.
description: 10 pages, 7 figures, 1 table
Renewable Energy in Mexico: Development and Outlook of Photovoltaic (PV) Energy
Creators: name: EL-Shimy, Mohamed
name: Vargas-Hernández, José G.
name: Córdova, Arturo
name: Nađ, Lucija
Publisher: name: figshare
Year: 2018
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Renewable Energy in Mexico: Development and Outlook of Photovoltaic (PV) Energy
Detector sampling of optical/IR spectra: how many pixels per FWHM?
Creators: name: Robertson, J. Gordon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Most optical and IR spectra are now acquired using detectors with finite-width pixels in a square array. This paper examines the effects of such pixellation, using computed simulations to illustrate the effects which most concern the astronomer end-user. Coarse sampling increases the random noise errors in wavelength by typically 10 - 20% at 2 pixels/FWHM, but with wide variation depending on the functional form of the instrumental Line Spread Function (LSF) and on the pixel phase. Line widths are even more strongly affected at low sampling frequencies. However, the noise in fitted peak amplitudes is minimally affected. Pixellation has a substantial but complex effect on the ability to see a relative minimum between two closely-spaced peaks (or relative maximum between two absorption lines). The consistent scale of resolving power presented by Robertson (2013) is extended to cover pixellated spectra. The systematic bias errors in wavelength introduced by pixellation are examined. While they may be negligible for smooth well-sampled symmetric LSFs, they are very sensitive to asymmetry and high spatial frequency substructure. The Modulation Transfer Function for sampled data is shown to give a useful indication of the extent of improperly sampled signal in an LSF. The common maxim that 2 pixels/FWHM is the Nyquist limit is incorrect and most LSFs will exhibit some aliasing at this sample frequency. While 2 pixels/FWHM is often an acceptable minimum for moderate signal/noise work, it is preferable to carry out simulations for any actual or proposed LSF to find the effects of sampling frequency. Where end-users have a choice of sampling frequencies, through on-chip binning and/or spectrograph configurations, the instrument user manual should include an examination of their effects. (Abridged)
description: 22 pages, 37 figures. Accepted for publication in PASA
A 2-D Finite-Element Model for Electro-Thermal Transients in Accelerator Magnets
Creators: name: Bortot, Lorenzo
name: Auchmann, Bernhard
name: Garcia, Idoia Cortes
name: Navarro, Alejandro Manuel Fernandez
name: Maciejewski, Michal
name: Prioli, Marco
name: Schöps, Sebastian
name: Verweij, Arjan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Superconducting accelerator magnets require sophisticated monitoring and means of protection due to the large energy stored in the magnetic field. Numerical simulations play a crucial role in understanding transient phenomena occurring within the magnet, and can, therefore, help to prevent disruptive consequences. We present a 2-D FEM model for the simulation of electro-thermal transients occurring in superconducting accelerator magnets. The magnetoquasistatic problem is solved with a modified magnetic vector potential formulation, where the cable eddy currents are resolved in terms of their equivalent magnetization. The heat balance equation is then investigated, and the relevant heat sources are discussed. The model implements a two-port component interface and is resolved, as part of an electrical circuit, in a cooperative simulation scheme with a lumped-parameter network.
description: 4 pages, 12 figures, approved for publication, IEEE Transactions on Magnetics, 2017
Automated Editing of Radio Interferometer Data with Pieflag
Creators: name: Middelberg, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Editing of radio interferometer data, a process commonly known as ``flagging'', can be laborious and time-consuming. One quickly tends to flag more data than actually required, sacrificing sensitivity and image fidelity in the process. I describe a program, Pieflag, which can analyse radio interferometer data to filter out measurements which are likely to be affected by interference. Pieflag uses two algorithms to allow for data sets which are either dominated by receiver noise or by source structure. Together, the algorithms detect essentially all affected data whilst the amount of data which is not affected by interference but falsely marked as such is kept to a minimum. The sections marked by Pieflag are very similar to what would be deemed affected by the observer in a visual inspection of the data. Pieflag displays its results concisely and allows the user to add and remove flags interactively. It is written in Python, is easy to install and use, and has a variety of options to adjust its algorithms to a particular observing situation. I describe how Pieflag works and illustrate its effect using data from typical observations.
description: 6 pages, 5 figures, requires apj.bst, accepted for publication in Publications of the Astronomical Society of Australia
Missing dust signature in the cosmic microwave background
Creators: name: Vavrycuk, Vaclav
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: I examine a possible spectral distortion of the Cosmic Microwave Background (CMB) due to its absorption by galactic and intergalactic dust. I show that even subtle intergalactic opacity of $1 \times 10^{-7}\, \mathrm{mag}\, h\, \mathrm{Gpc}^{-1}$ at the CMB wavelengths in the local Universe causes non-negligible CMB absorption and decline of the CMB intensity because the opacity steeply increases with redshift. The CMB should be distorted even during the epoch of the Universe defined by redshifts $z < 10$. For this epoch, the maximum spectral distortion of the CMB is at least $20 \times 10^{-22} \,\mathrm{Wm}^{-2}\, \mathrm{Hz}^{-1}\, \mathrm{sr}^{-1}$ at 300 GHz being well above the sensitivity of the COBE/FIRAS, WMAP or Planck flux measurements. If dust mass is considered to be redshift dependent with noticeable dust abundance at redshifts 2-4, the predicted CMB distortion is even higher. The CMB would be distorted also in a perfectly transparent universe due to dust in galaxies but this effect is lower by one order than that due to intergalactic opacity. The fact that the distortion of the CMB by dust is not observed is intriguing and questions either opacity and extinction law measurements or validity of the current model of the Universe.
description: 5 pages, 4 figures
Magnetic monopole loop for the Yang-Mills instanton
Creators: name: Brower, Richard C.
name: Orginos, Kostas N.
name: Tan, Chung-I
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We investigate 't Hooft-Mandelstam monopoles in QCD in the presence of a single classical instanton configuration. The solution to the Maximal Abelian projection is found to be a circular monopole trajectory with radius $R$ centered on the instanton. At zero loop radius, there is a marginally stable (or flat) direction for loop formation to $O(R^4 logR)$. We argue that loops will form, in the semi-classical limit, due to small perturbations such as the dipole interaction between instanton anti-instanton pairs. As the instanton gas becomes a liquid, the percolation of the monopole loops may therefore provide a semi-classical precursor to the confinement mechanism.
description: 19 pages, ReVTeX, 5 Encaptulated Postscript figures
Well-posedness of a mathematical model for Alzheimer's disease
Creators: name: Bertsch, Michiel
name: Franchi, Bruno
name: Tesi, Maria Carla
name: Tosin, Andrea
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We consider the existence and uniqueness of solutions of an initial-boundary value problem for a coupled system of PDE's arising in a model for Alzheimer's disease. Apart from reaction diffusion equations, the system contains a transport equation in a bounded interval for a probability measure which is related to the malfunctioning of neurons. The main ingredients to prove existence are: the method of characteristics for the transport equation, a priori estimates for solutions of the reaction diffusion equations, a variant of the classical contraction theorem, and the Wasserstein metric for the part concerning the probability measure. We stress that all hypotheses on the data are not suggested by mathematical artefacts, but are naturally imposed by modelling considerations. In particular the use of a probability measure is natural from a modelling point of view. The nontrivial part of the analysis is the suitable combination of the various mathematical tools, which is not quite routine and requires various technical adjustments.
Così le intelligenze artificiali stanno trasformando il fumetto
Creators: name: Manouach, Ilan
name: D'Isa, Francesco
Publisher: name: Artribune
Year: 2023

description: un articolo pubblicato lo scorso ottobre sul settimanale belga Le Vif, il fumettista Ilan Manouach si interrogava sulle relazioni tra AI e comics. Qui una sintesi del testo, tradotto per noi dallo scrittore e artista Francesco D'Isa

https://www.artribune.com/editoria/fumetti/2024/01/fumetto-ai-ilan-manouach/
Efimov states and their Fano resonances in a neutron-rich nucleus
Creators: name: Mazumdar, I.
name: Rau, A. R. P.
name: Bhasin, V. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Asymmetric resonances in elastic n+$^{19}$C scattering are attributed to Efimov states of such neutron-rich nuclei, that is, three-body bound states of the n+n+$^{18}$C system when none of the pairs is bound or some of them only weakly bound. By fitting to the general resonance shape described by Fano, we extract resonance position, width, and the "Fano profile index". While Efimov states have been discussed extensively in many areas of physics, there is only one very recent experimental observation in trimers of cesium atoms. The conjunction that we present of the Efimov and Fano phenomena may lead to experimental realization in nuclei.
description: 4 double-column pages, 3 figures
A problem with the analysis of type Ia supernovae
Creators: name: Crawford, David F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Type Ia supernovae have light curves that have widths and magnitudes that can be used for testing cosmologies and they provide one of the few direct measurements of time dilation. It is shown that the standard analysis that calibrates the light curve against a rest-frame average (such as SALT2) removes all the cosmological information from the calibrated light curves. Consequently type Ia supernovae calibrated with these methods cannot be used to investigate cosmology. The major evidence that supports the hypothesis of a static universe is that the measurements of the widths of the raw light curves of type Ia supernovae do not show any time dilation. The intrinsic wavelength dependence shown by the SALT2 calibration templates is also consistent with no time dilation. Using a static cosmological model the peak absolute magnitudes of raw type Ia supernovae observations are also independent of redshift. These results support the hypothesis of a static universe.
description: 9 pages 3 figures Correction to equation (1) and several small additions yo avoid possible ambiguities
Generalized Method for Sizing Optimization of Standalone 100% Renewable Energy Mixed Source for Supplying Deferrable Loads
Creators: name: EL-Shimy, Mohamed
name: B. Durin
Publisher: name: figshare
Year: 2018
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Generalized Method for Sizing Optimization of Standalone 100% Renewable Energy Mixed Source for Supplying Deferrable Loads
Viability and Emission Analysis of Various Energy Supply Options for Irrigation Water Pumping Systems
Creators: name: EL-Shimy, Mohamed
Publisher: name: figshare
Year: 2018
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Viability and Emission Analysis of Various Energy Supply Options for Irrigation Water Pumping Systems
title: ADCO, Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Cart. 31 (G 135), 549 folios, f. 0700
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0700, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Huitième cartulaire de Saint-Étienne de Dijon (1661-1667), Archives départementales de la Côte-d'Or, Cart. 31 (G 135), 549 folios, f. 0700, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Accurate photometric redshifts for the CFHT Legacy Survey calibrated using the VIMOS VLT Deep Survey
Creators: name: Ilbert, O.
name: Arnouts, S.
name: McCracken, H. J.
name: Bolzonella, M.
name: Bertin, E.
name: Fevre, O. Le
name: Mellier, Y.
name: Zamorani, G.
name: Pello, R.
name: Iovino, A.
name: Tresse, L.
name: Bottini, D.
name: Garilli, B.
name: Brun, V. Le
name: Maccagni, D.
name: Picat, J. P.
name: Scaramella, R.
name: Scodeggio, M.
name: Vettolani, G.
name: Zanichelli, A.
name: Adami, C.
name: Bardelli, S.
name: Cappi, A.
name: Charlot, S.
name: Ciliegi, P.
name: Contini, T.
name: Cucciati, O.
name: Foucaud, S.
name: Franzetti, P.
name: Gavignaud, I.
name: Guzzo, L.
name: Marano, B.
name: Marinoni, C.
name: Mazure, A.
name: Meneux, B.
name: Merighi, R.
name: Paltani, S.
name: Pollo, A.
name: Pozzetti, L.
name: Radovich, M.
name: Zucca, E.
name: Bondi, M.
name: Bongiorno, A.
name: Busarello, G.
name: De La Torre, S.
name: Gregorini, L.
name: Lamareille, F.
name: Mathez, G.
name: Merluzzi, P.
name: Ripepi, V.
name: Rizzo, D.
name: Vergani, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present photometric redshifts for an uniquely large and deep sample of 522286 objects with i'_{AB}<25 in the Canada-France Legacy Survey ``Deep Survey'' fields, which cover a total effective area of 3.2 deg^2. We use 3241 spectroscopic redshifts with 0
description: 19 pages, 17 figures, submitted to A&A. The photometric redshifts described in this paper will be made publicly available from 1st may 2006 at http://terapix.iap.fr and http://cencosw.oamp.fr/
Overview of Pumping Systems with Focus on Deferrable Irrigation Loads
Creators: name: EL-Shimy, Mohamed
Publisher: name: figshare
Year: 2018
Subjects: subject: 90607 Power and Energy Systems Engineering (excl. Renewable Power)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)

description: Overview of Pumping Systems with Focus on Deferrable Irrigation Loads
Off-Shell Formulation of N=2 Non-Linear Sigma-Models
Creators: name: Sevrin, Alexander
name: Troost, Jan
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study d=2, N=(2,2) non-linear sigma-models in (2,2) superspace. By analyzing the most general constraints on a superfield, we show that through an appropriate choice of coordinates, there are no other superfields than chiral, twisted chiral and semi-chiral ones. We study the resulting sigma-models and we speculate on the possibility that all (2,2) non-linear sigma-models can be described using these fields. We apply the results to two examples: the SU(2) x U(1) and the SU(2) x SU(2) WZW model. Pending upon the choice of complex structures, the former can be described in terms of either one semi-chiral multiplet or a chiral and a twisted chiral multiplet. The latter is formulated in terms of one semi-chiral and one twisted chiral multiplet. For both cases we obtain the potential explicitely.
description: 22 pages, LaTeX
Additional file 1 of Lumbar and ventricular CSF concentrations of extracellular matrix proteins before and after shunt surgery in idiopathic normal pressure hydrocephalus
Creators: name: Minta, Karolina
name: Jeppsson, Anna
name: Brinkmalm, Gunnar
name: Portelius, Erik
name: Zetterberg, Henrik
name: Blennow, Kaj
name: Tullberg, Mats
name: Andreasson, Ulf
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Developmental Biology
subject: Computational Biology

description: Additional file 1. Additional figures and table.
Experimental Violation of Bell Inequality beyond Cirel'son's Bound
Creators: name: Chen, Yu-Ao
name: Yang, Tao
name: Zhang, An-Ning
name: Zhao, Zhi
name: Cabello, Adan
name: Pan, Jian-Wei
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The correlations between two qubits belonging to a three-qubit system can violate the Clauser-Horne-Shimony-Holt-Bell inequality beyond Cirel'son's bound [A. Cabello, Phys. Rev. Lett. 88, 060403 (2002)]. We experimentally demonstrate such a violation by 7 standard deviations by using a three-photon polarization-entangled Greenberger-Horne-Zeilinger state produced by Type-II spontaneous parametric down-conversion. In addition, using part of our results, we obtain a violation of the Mermin inequality by 39 standard deviations.
description: 4 pages, 3 figures
title: Analysis of rainfall and runoff for debris flows at the Illgraben catchment, Switzerland
Creators: name: Hirschberg, Jacob
name: McArdell, Brian W.
name: Badoux, Alexandre
name: Molnar, Peter
Publisher: name: Mountain Scholar
Year: 2019
Subjects: runoff coefficient
volume
frequency

description: For hazard analysis, scenario design and mitigation there is a need to accurately and objectively predict the volume of debris flows. One approach is to base the calculation on rainfall properties. Herein we present an analysis of rainfall and debris-flow volume using data from the Illgraben catchment in Switzerland. The Illgraben debris-flow observation station, operated starting in the year 2000, has successfully recorded 75 debris flows and debris floods, with volume and bulk density estimates available for most of these events since 2000 and 2004, respectively. Here we describe results for 52 debris flows with sufficient data. Runoff coefficients determine the proportion of precipitation discharged from a catchment and support estimates on flow magnitudes. For each debris flow, runoff coefficients were determined by considering the event rainfall and the water contained in the debris flow. The events can further be characterized by the 14-day antecedent wetness. Runoff coefficients comprise a wide range from near 0 to close to 1. Clear trends are apparent, such as larger runoff coefficients during the snowmelt season. Furthermore, the debris-flow volumes are more sensitive to the antecedent rainfall than to the rainfall amount that triggered the event, likely because a wet channel bed enhances entraining. This study gives insights on which climate variables control the debris-flow volume. This will be further investigated and incorporated into the SedCas (Sediment Cascade) model (Bennett et al., 2014) to improve prediction of debris-flow activity.
Comparison Between the Economic Performances of Wind and Solar-PV Projects Considering External Costs
Creators: name: EL-Shimy, Mohamed
Publisher: name: figshare
Year: 2018
Subjects: subject: 90608 Renewable Power and Energy Systems Engineering (excl. Solar Cells)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Comparison Between the Economic Performances of Wind and Solar-PV Projects Considering External Costs
Star Formation in QSO Host Galaxies
Creators: name: Canalizo, Gabriela
name: Stockton, Alan
name: Brotherton, Michael S.
name: Lacy, Mark
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Many of the conditions that are necessary for starbursts appear to be important in the triggering of QSOs. However, it is still debatable whether starbursts are ubiquitously present in galaxies harboring QSOs. In this paper we review our current knowledge from observations of the role of starbursts in different types of QSOs. Post-starburst stellar populations are potentially present in the majority of QSO hosts. QSOs with far-infrared colors similar to those of ultraluminous infrared galaxies invariably reside in merging galaxies that have interaction-induced starbursts of a few hundred Myr or less. Similar, but dramatically more luminous post-starburst populations are found in the recently discovered class of QSOs known as post-starburst QSOs, or Q+A's. Both of these classes, however, comprise only a small fraction (10-15%) of the total QSO population. The so-called "red" QSOs generally suffer from strong extinction at optical wavelengths, making them ideal candidates for the study of hosts. Their stellar populations typically show a post-starburst component as well, though with a larger range of ages. Finally, optical "classical" QSO hosts show traces of major star formation episodes (typically involving >10% of the mass of the stellar component) in the more distant past (1-2 Gyr). These starbursts appear to be linked to past merger events. It remains to be determined whether these mergers were also responsible for triggering the QSO activity that we observe today.
description: 8 pages, 5 figures, invited review for "QSO Host Galaxies: Evolution and Environment", held at the Lorentz Center, Universiteit Leiden, August, 2005
PEAR: PEriodic And fixed Rank separation for fast fMRI
Creators: name: Weizman, Lior
name: Miller, Karla L.
name: Chiew, Mark
name: Eldar, Yonina C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Medical Physics (physics.med-ph)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: In functional MRI (fMRI), faster acquisition via undersampling of data can improve the spatial-temporal resolution trade-off and increase statistical robustness through increased degrees-of-freedom. High quality reconstruction of fMRI data from undersampled measurements requires proper modeling of the data. We present an fMRI reconstruction approach based on modeling the fMRI signal as a sum of periodic and fixed rank components, for improved reconstruction from undersampled measurements. We decompose the fMRI signal into a component which a has fixed rank and a component consisting of a sum of periodic signals which is sparse in the temporal Fourier domain. Data reconstruction is performed by solving a constrained problem that enforces a fixed, moderate rank on one of the components, and a limited number of temporal frequencies on the other. Our approach is coined PEAR - PEriodic And fixed Rank separation for fast fMRI. Experimental results include purely synthetic simulation, a simulation with real timecourses and retrospective undersampling of a real fMRI dataset. Evaluation was performed both quantitatively and visually versus ground truth, comparing PEAR to two additional recent methods for fMRI reconstruction from undersampled measurements. Results demonstrate PEAR's improvement in estimating the timecourses and activation maps versus the methods compared against at acceleration ratios of R=8,16 (for simulated data) and R=6.66,10 (for real data). PEAR results in reconstruction with higher fidelity than when using a fixed-rank based model or a conventional Low-rank+Sparse algorithm. We have shown that splitting the functional information between the components leads to better modeling of fMRI, over state-of-the-art methods.