cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The generalised second law and the black hole evaporation in an empty space as a nonequilibrium process
Creators: name: Saida, Hiromi
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: When a black hole is in an empty space on which there is no matter field except that of the Hawking radiation (Hawking field), then the black hole evaporates and the entropy of the black hole decreases. The generalised second law guarantees the increase of the total entropy of the whole system which consists of the black hole and the Hawking field. That is, the increase of the entropy of the Hawking field is faster than the decrease of the black hole entropy. In naive sense, one may expect that the entropy increase of the Hawking field is due to the self-interaction among the composite particles of the Hawking field, and that the "self"-relaxation of the Hawking field results in the entropy increase. Then, when one consider a non-self-interacting matter field as the Hawking field, it is obvious that the self-relaxation does not take place, and one may think that the total entropy does not increase. However, using nonequilibrium thermodynamics which has been developed recently, we find for the non-self-interacting Hawking field that the rate of entropy increase of the Hawking field (the entropy emission rate by the black hole) grows faster than the rate of entropy decrease of the black hole along the black hole evaporation in the empty space. The origin of the entropy increase of the Hawking field is the increase of the black hole temperature. Hence an understanding of the generalised second law in the context of the nonequilibrium thermodynamics is suggested; even if the self-relaxation of the Hawking field does not take place, the temperature increase of the black hole during the evaporation process causes the entropy increase of the Hawking field to result in the increase of the total entropy.
description: 13 pages, 6 figures. Accepted for publication in "Classical and Quantum Gravity" at 1 September 2006, mis-typo is corrected
Negative Energy and Angular Momentum Modes of Thin Accretion Disks
Creators: name: Zhang, L.
name: Lovelace, R. V. E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work derives the linearized equations of motion, the Lagrangian density, the Hamiltonian density, and the canonical angular momentum density for general perturbations [$\propto \exp(imϕ)$ with $m=0,\pm 1,..$] of a geometrically thin self-gravitating, homentropic fluid disk including the pressure. The theory is applied to ``eccentric,'' $m=\pm 1$ perturbations of a geometrically thin Keplerian disk. We find $m=1$ modes at low frequencies relative to the Keplerian frequency. Further, it shown that these modes can have negative energy and negative angular momentum. The radial propagation of these low frequency $m=1$ modes can transport angular momentum away from the inner region of a disk and thus increase the rate of mass accretion. Depending on the radial boundary conditions there can be discrete low-frequency, negative-energy, $m=1$ modes.
description: 24 pages, 8 figures
Graziano Ranocchia, Aristone 'Sul modo di liberare dalla superbia' nel decimo libro 'De vitiis' di Filodemo
Creators: name: Indelli, Giovanni
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Graziano Ranocchia, Aristone 'Sul modo di liberare dalla superbia' nel decimo libro 'De vitiis' di Filodemo, Accademia Toscana di Scienze e Lettere La Colombaria, Studi CCXXXVII. Florenz 2007: Leo S. Olschki Editore, XVIII + 438 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 13 (2010): Göttinger Forum für Altertumswissenschaft
Anomalous Diffusion of Inertial, Weakly Damped Particles
Creators: name: Friedrich, R.
name: Jenko, F.
name: Baule, A.
name: Eule, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The anomalous (i.e. non-Gaussian) dynamics of particles subject to a deterministic acceleration and a series of 'random kicks' is studied. Based on an extension of the concept of continuous time random walks to position-velocity space, a new fractional equation of the Kramers-Fokker-Planck type is derived. The associated collision operator necessarily involves a fractional substantial derivative, representing important nonlocal couplings in time and space. For the force-free case, a closed solution is found and discussed.
description: Submitted to Physical Review Letters
[Annotated texts]
Creators: name: Cortés, Nicolás
name: Hinton, Leanne
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: Chalcatongo de Hidalgo Mixtec language

description: File 001 is photocopy of handwritten transcription with corrections and translation (text at bottom cut off in photocopy); file 002 is photocopy of transcription annotated with original corrections and translation.
A Search for Optical Laser Emission from Proxima Centauri
Creators: name: Marcy, Geoffrey W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: A search for laser light from Proxima Centauri was performed, including 107 high-resolution, optical spectra obtained between 2004 and 2019. Among them, 57 spectra contain multiple, confined spectral combs, each consisting of 10 closely-spaced frequencies of light. The spectral combs, as entities, are themselves equally spaced with a frequency separation of 5800 GHz, rendering them unambiguously technological in origin. However, the combs do not originate at Proxima Centauri. Otherwise, the 107 spectra of Proxima Centauri show no evidence of technological signals, including 29 observations between March and July 2019 when the candidate technological radio signal, BLC1, was captured by Breakthrough Listen. This search would have revealed lasers pointed toward Earth having a power of 20 to 120 kilowatts and located within the 1.3au field of view centered on Proxima Centauri, assuming a benchmark laser launcher having a 10-meter aperture.
Judith Hindermann, Der elegische Esel. Apuleius’ 'Metamorphosen' und Ovids 'Ars amatoria'
Creators: name: Gärtner, Thomas
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Judith Hindermann, Der elegische Esel. Apuleius’ 'Metamorphosen' und Ovids 'Ars amatoria'. Studien zur klassischen Philologie 162. Frankfurt a.M. u.a.: Peter Lang 2009, 229 S.
description: Göttinger Forum für Altertumswissenschaft, Bd. 13 (2010): Göttinger Forum für Altertumswissenschaft
Exact solution of the spin-isospin proton-neutron pairing Hamiltonian
Creators: name: H., S. Lerma
name: Errea, B.
name: Dukelsky, J.
name: Satula, W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: Superconductivity (cond-mat.supr-con)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The exact solution of proton-neutron isoscalar-isovector (T=0,1) pairing Hamiltonian with non-degenerate single-particle orbits and equal pairing strengths (g_{T=1}= g_{T=0}) is presented for the first time. The Hamiltonian is a particular case of a family of integrable SO(8) Richardson-Gaudin (RG) models. The exact solution of the T=0,1 pairing Hamiltonian is reduced to a problem of 4 sets of coupled non linear equations that determine the spectral parameters of the complete set of eigenstates. The microscopic structure of individual eigenstates is analyzed in terms of evolution of the spectral parameters in the complex plane for system of A=80 nucleons. The spectroscopic trends of the exact solutions are discussed in terms of generalized rotations in isospace.
description: 4 pages, 2 figures
Mechthild Schulze-Dörrlamm, Byzantinische Gürtelschnallen und Gürtelbeschläge im Römisch-Germanischen Zentralmuseum. Teil I: Die Schnallen ohne Beschläg, mit Laschenbeschläg und mit festem Beschläg des 5. bis 7. Jahrhunderts / Teil II: Die Schnallen mit Scharnierbeschläg und die Schnallen mit angegossenem Riemendurchzug des 7. bis 10. Jahrhunderts
Creators: name: Ebel-Zepezauer, Wolfgang
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Rezension zu: Mechthild Schulze-Dörrlamm, Byzantinische Gürtelschnallen und Gürtelbeschläge im Römisch-Germanischen Zentralmuseum. Teil I: Die Schnallen ohne Beschläg, mit Laschenbeschläg und mit festem Beschläg des 5. bis 7. Jahrhunderts. Kataloge Vor- und Frühgeschichtlicher Altertümer 30,1. Mainz: Römisch-Germanisches Zentralmuseum 2. Auflage 2009, in Kommission bei Schnell und Steiner, Regensburg, 268 S., 313 s/w-Abb., 4 Farbtafeln, Chronologietabelle Rezension zu: Mechthild Schulze-Dörrlamm, Byzantinische Gürtelschnallen und Gürtelbeschläge im Römisch-Germanischen Zentralmuseum. Teil II: Die Schnallen mit Scharnierbeschläg und die Schnallen mit angegossenem Riemendurchzug des 7. bis 10. Jahrhunderts. Kataloge Vorund Frühgeschichtlicher Altertümer 30,2. Mainz: Römisch-Germanisches Zentralmuseum 2009, in Kommission bei Schnell und Steiner, Regensburg, 414 S., 579 s/w.-Abb., 2 Farbtafeln, Chronologietabelle, Beilage
description: Göttinger Forum für Altertumswissenschaft, Bd. 13 (2010): Göttinger Forum für Altertumswissenschaft
Stress-Induced Phase Transitions in Nanoscale CuInP$_2$S$_6$
Creators: name: Morozovska, Anna N.
name: Eliseev, Eugene A.
name: Kalinin, Sergei V.
name: Vysochanskii, Yulian M.
name: Maksymovych, Petro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using Landau-Ginsburg-Devonshire approach and available experimental results we reconstruct the thermodynamic potential of the layered ferroelectric CuInP$_2$S$_6$ (CIPS), which is expected to be applicable a wide range of temperatures and applied pressures. The analysis of temperature dependences of the dielectric permittivity and lattice constants for different applied pressures unexpectedly reveals the critically important role of the nonlinear electrostriction in this material. With the nonlinear electrostriction included we calculated temperature and pressure phase diagrams and spontaneous polarization of bulk CIPS. Using the coefficients of the reconstructed four-well thermodynamic potential, we study the strain-induced phase transitions in thin epitaxial CIPS films, as well as the stress-induced phase transitions in CIPS nanoparticles, which shape varies from prolate needles to oblate disks. We reveal the strong influence of the mismatch strain, elastic stress and shape anisotropy on the polar properties and phase diagrams of nanoscale CIPS. Also, we derived analytical expressions, which allow the elastic control of the nanoscale CIPS polar properties. Hence obtained results can be of particular interest for the strain-engineering of nanoscale layered nanoferroelectrics.
description: 23 pages including 6 figures and 2 appendixes
Mariana Ivanova: Cinema of Collaborations and Stefano Pisu: La cortina di celluloide
Creators: name: Jozwiak, Karol
Publisher: name: Apparatus. Film, Media and Digital Cultures of Central and Eastern Europe
Year: 2021

description: Review of Mariana Ivanova's Cinema of Collaborations. DEFA Co-productions and International Exchange in Cold War Europe (2019) and Stefano Pisu’s La cortina di celluloide. Il cinema italo-sovietico nella Guerra fredda (2019)
description: Apparatus. Film, Media and Digital Cultures of Central and Eastern Europe, No. 13 (2021): Putting the Empire to Music. The Phenomenon of Vocal-Instrumental Ensembles (VIA)
Line junction in a quantum Hall system with two filling fractions
Creators: name: Sen, Diptiman
name: Agarwal, Amit
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a microscopic model for a line junction formed by counter or co-propagating single mode quantum Hall edges corresponding to different filling factors. The ends of the line junction can be described by two possible current splitting matrices which are dictated by the conditions of both lack of dissipation and the existence of a linear relation between the bosonic fields. Tunneling between the two edges of the line junction then leads to a microscopic understanding of a phenomenological description of line junctions introduced some time ago. The effect of density-density interactions between the two edges is considered, and renormalization group ideas are used to study how the tunneling parameter changes with the length scale. This leads to a power law variation of the conductance of the line junction with the temperature. Depending on the strength of the interactions the line junction can exhibit two quite different behaviors. Our results can be tested in bent quantum Hall systems fabricated recently.
description: 9 pages including 4 figures
Phases and homogeneous ordered states in alignment-based self-propelled particle models
Creators: name: Zhao, Yinong
name: Ihle, Thomas
name: Han, Zhangang
name: Huepe, Cristián
name: Romanczuk, Pawel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study a set of models of self-propelled particles that achieve collective motion through similar alignment-based dynamics, considering versions with and without repulsive interactions that do not affect the heading directions. We explore their phase space within a broad range of values of two nondimensional parameters (coupling strength and Peclet number), characterizing their polarization and degree of clustering. The resulting phase diagrams display equivalent, similarly distributed regions for all models with repulsion. The diagrams without repulsion exhibit differences, in particular for high coupling strengths. We compare the boundaries and representative states of all regions, identifying various regimes that had not been previously characterized. We analyze in detail three types of homogeneous polarized states, comparing them to existing theoretical and numerical results by computing their velocity and density correlations, giant number fluctuations, and local order-density coupling. We find that they all deviate in one way or another from the theoretical predictions, attributing these differences either to the remaining inhomogeneities or to finite-size effects. We discuss our results in terms of the universal or specific features of each model, their thermodynamic limit, and the high mixing and low mixing regimes. Our study provides a broad, overarching perspective on the multiple phases and states found in alignment-based self-propelled particle models.
Two-pion-exchange parity-violating potential and $\vec{n} p \to d γ$
Creators: name: Hyun, C. H.
name: Ando, S.
name: Desplanques, B.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We calculate the parity-violating nucleon-nucleon potential in heavy-baryon chiral perturbation theory up to the next-to-next-to-leading order. The one-pion exchange comes in the leading order and the next-to-next-to-leading order consists of two-pion-exchange and the two-nucleon contact terms. In order to investigate the effect of the higher order contributions, we calculate the parity-violating asymmetry in $\vec{n} p \to d γ$ at the threshold. The one-pion dominates the physical observable and the two-pion contribution is about or less than 10% of the one-pion contribution.
description: 3 pages, contribution to the workshop PAVI06 held in Milos island, Greece, May 16-20, 2006
Ultra-high bandwidth fiber-optic data transmission with a single chip source
Creators: name: Moss, David J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We report world record high data transmission over standard optical fiber from a single optical source. We achieve a line rate of 44.2 Terabits per second (Tb/s) employing only the C-band at 1550nm, resulting in a spectral efficiency of 10.4 bits/s/Hz. We use a new and powerful class of micro-comb called soliton crystals that exhibit robust operation and stable generation as well as a high intrinsic efficiency that, together with an extremely low spacing of 48.9 GHz enables a very high coherent data modulation format of 64 QAM. We achieve error free transmission across 75 km of standard optical fiber in the lab and over a field trial with a metropolitan optical fiber network. This work demonstrates the ability of optical micro-combs to exceed other approaches in performance for the most demanding practical optical communications applications.
description: 22 pages, 9 figures, 178 references. arXiv admin note: text overlap with arXiv:2003.11893, arXiv:2103.03354
Lanczos potential of Weyl field: interpretations and applications
Creators: name: Vishwakarma, Ram Gopal
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: An attempt is made to uncover the physical meaning and significance of the obscure Lanczos tensor field which is regarded as a potential of the Weyl field. Despite being a fundamental building block of any metric theory of gravity, the Lanczos tensor has not been paid proper attention as it deserves. By providing an elucidation on this tensor field through its derivation in some particularly chosen spacetimes, we try to find its adequate interpretation. Though the Lanczos field is traditionally introduced as a gravitational analogue of the electromagnetic 4-potential field, the performed study unearths its another feature - a relativistic analogue of the Newtonian gravitational force field. A new domain of applicability of the Lanczos tensor is introduced which corroborates this new feature of the tensor.
description: 27 pages, no figures
Traveling waves in magnetized Taylor-Couette flow
Creators: name: Liu, Wei
name: Goodman, Jeremy
name: Ji, Hantao
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate numerically a traveling wave pattern observed in experimental magnetized Taylor-Couette flow at low magnetic Reynolds number. By accurately modeling viscous and magnetic boundaries in all directions, we reproduce the experimentally measured wave patterns and their amplitudes. Contrary to previous claims, the waves are shown to be transiently amplified disturbances launched by viscous boundary layers rather than globally unstable magnetorotational modes.
description: 4 pages, 3 figures and 1 table, accepted by PRE. Minor revision according to referees
Nonclassical Approximate Symmetries of Evolution Equations with a Small Parameter
Creators: name: Kordyukova, Svetlana
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We introduce a method of approximate nonclassical Lie-Bäcklund symmetries for partial differential equations with a small parameter and discuss applications of this method to finding of approximate solutions both integrable and nonintegrable equations.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Definición de las líneas de investigación
Creators: name: Suing, Abel
Publisher: name: Zenodo
Year: 2008
Subjects: Comunicación
investigación
líneas
doctorado
grupo
medios
universidad
publicación
academia

description: Definición de las líneas de investigación. Compilación para insumo del CITTES VÍA Comunicación de la Universidad Técnica Particular de Loja, Ecuador.
Design, implementation and testing of a flexible, intelligent modem architecture for power line communications
Creators: name: Buternowsky, Barry
Publisher: name: University of British Columbia
Year: 2008

description: Intrabuilding electric power distribution lines provide easy access and universal coverage for data communications. However, power line communication channels exhibit unpredictable levels of impedance, attenuation and noise. To enable effective communications requires appropriate modulation schemes and communication protocols. This thesis describes the design, implementation and testing of a modular, flexible, intelligent modem architecture, based on binary phase-shift keying (BPSK). The modem operates at user selectable baud rates of 2.4, 4.8, 9.6 and 19.2 kbps. Most of the design is digital, to facilitate eventual implementation using VLSI. A microcontroller resident on the modem enables judicious allocation of data link layer functions between modem and host microcomputer. Data link functions performed by the microcontroller include byte and packet synchronization, and control of host-modem communications. The overall data link protocol design results in a flexible, user specified packet format and length, which accommodates to different data rates. The modem architecture is designed for use with various medium access protocols including CSMA, polling or token passing. Addition of forward error correction capability in the form of on-board hardware is also feasible. Evaluation of the modem architecture was performed in a four-storey industrial building which contains good, fair and poor quality communication links. Results for same phase and cross phase transmissions were collected and analyzed for two different test environments: (1) short length links of approximately 30 meters within the same room location; and, (2) moderate to very long links (greater than 60 meters) among different floors. Results from tests (1) indicate that same phase transmission is in general advantageous over cross phase transmission. This advantage for BERs less than 10-3 for transmission at 19.2 kbps can be large as 27 dBmV. Evaluation of results from tests (2) indicate that power line channel communication characteristics are directly related to the channel's length. The BER was found to be in a range from 10-1 to 10-3 for transmission at 19.2 kbps . Comparison of channel throughput for continuous one-way transmission without forward error correction indicates 2.4 kbps would be appropriate for long distance,4.8 and 9.6 kbps for medium distances, and 19.2 kbps for relatively short distances.
Kritisches zur Römischen Petrustradition und zur Datierung des Ersten Clemensbriefes
Creators: name: Zwierlein, Otto
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Göttinger Forum für Altertumswissenschaft, Bd. 13 (2010): Göttinger Forum für Altertumswissenschaft
Efficient and compact thermo-optic phase shifter in silicon-rich silicon nitride
Creators: name: Nejadriahi, Hani
name: Pappert, Steve
name: Fainman, Yeshaiahu
name: Yu, Paul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The design, fabrication, and characterization of low loss ultra-compact bends in high index (n = 3.1 at λ = 1550 nm) PECVD silicon rich silicon nitride (SRN) is demonstrated and utilized to realize efficient, small footprint thermo-optic phase shifter. Compact bends are structured into a folded waveguide geometry to form a rectangular spiral within an area of 65 x 65 \mum2 possessing a total active waveguide length of 1.2 mm. The device features a phase shifting efficiency of 8 mW/π and a 3 dB switching bandwidth of 15 KHz. We propose SRN as a promising thermo-optic platform combining the properties of silicon and silicon stoichiometric nitride
description: 4 page, 3 figures, 1 table
Per la fortuna di Dione Crisostomo I: la ritrovata versione latina di Arnaud de Ferron ed un perduto codice di Jean de Pins
Creators: name: Amato, Eugenio
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Göttinger Forum für Altertumswissenschaft, Bd. 13 (2010): Göttinger Forum für Altertumswissenschaft
X-ray scattering from surfaces: discrete and continuous components of roughness
Creators: name: Dale, Darren
name: Fleet, Aaron
name: Suzuki, Y.
name: Brock, J. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Incoherent surface scattering yields a statistical description of the surface, due to the ensemble averaging over many independently sampled volumes. Depending on the state of the surface and direction of the scattering vector relative to the surface normal, the height distribution is discrete, continuous, or a combination of the two. We present a treatment for the influence of multimodal surface height distributions on Crystal Truncation Rod scattering. The effects of a multimodal height distribution are especially evident during in situ monitoring of layer-by-layer thin-film growth via Pulsed Laser Deposition. We model the total height distribution as a convolution of discrete and continuous components, resulting in a broadly applicable parameterization of surface roughness which can be applied to other scattering probes, such as electrons and neutrons. Convolution of such distributions could potentially be applied to interface or chemical scattering. Here we find that this analysis describes accurately our experimental studies of <001> SrTiO3 annealing and homoepitaxial growth.
description: 15 pages, 7 figures
ATOMIC NUCLEI AND QUARKS UNVEIL THEIR SECRETS
Creators: name: KINET Guido
Publisher: name: Zenodo
Year: 2019
Subjects: Atomic nuclei, quarks, nuclear fission, crystalline nucleus, mass distribution, decay modes, liquid drop model, shell model, unified model, protons, neutrons, muon, tau, elastic scattering, electrons, strong force, gluon, hydrogen-1, helium-3, deuterium, tritium, carbon, beryllium, Coulomb force, isotopes, alpha decay,  − decay, β+ decay, electron capture, fission fragments, mass distribution,
novam terram

description: Two small parts, an UP quark and a DOWN quark, were merged into a crystalline structure, through which an amazingly simple and harmonious tool of nature could be achieved ... the core of all things. The elegance, the structural simplicity of that crystalline structure, the atomic nucleus, can be admired in its ability to search for its most stable condition to give the universe the chance to spawn intelligent life. A new and innovative way to gain insight into this whole event has made it possible to obtain a better understanding of the underlying processes. At the same time, new insights emerged that pushed past assumptions into the background.
Compressing 1D Time-Channel Separable Convolutions using Sparse Random Ternary Matrices
Creators: name: Mordido, Gonçalo
name: Van Keirsbilck, Matthijs
name: Keller, Alexander
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We demonstrate that 1x1-convolutions in 1D time-channel separable convolutions may be replaced by constant, sparse random ternary matrices with weights in $\{-1,0,+1\}$. Such layers do not perform any multiplications and do not require training. Moreover, the matrices may be generated on the chip during computation and therefore do not require any memory access. With the same parameter budget, we can afford deeper and more expressive models, improving the Pareto frontiers of existing models on several tasks. For command recognition on Google Speech Commands v1, we improve the state-of-the-art accuracy from $97.21\%$ to $97.41\%$ at the same network size. Alternatively, we can lower the cost of existing models. For speech recognition on Librispeech, we half the number of weights to be trained while only sacrificing about $1\%$ of the floating-point baseline's word error rate.
Due frammenti e l’analogia in Empedocle: B115 D.-K. e il fr. 110 Bollack
Creators: name: Santaniello, Carlo
Publisher: name: Göttinger Forum für Altertumswissenschaft
Year: 2021

description: Göttinger Forum für Altertumswissenschaft, Bd. 13 (2010): Göttinger Forum für Altertumswissenschaft
Spin dynamics in copper metaborate $CuB_2 O_4$ studied by muon spin relaxation
Creators: name: Fukaya, A.
name: Watanabe, I.
name: Yamada, K.
name: Nagamine, K.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Copper metaborate CuB$_2$O$_{4}$ was studied by muon spin relaxation measurements in order to clarify its static and dynamic magnetic properties. The time spectra of muon spin depolarization suggest that the local fields at the muon site contain both static and fluctuating components in all ordered phases down to 0.3 K. In the weak ferromagnetic phase (20 K~$>T>$~9.3 K), the static component is dominant. On the other hand, upon cooling the fluctuating component becomes dominant in the incommensurate helix phase (9.3K > T > 1.4K). The dynamical fluctuations of the local fields persist down to 0.3K, where a new incommensurate phase (T < 1.4K) is expected to appear. This result suggests that spins fluctuate even at T \to 0. We propose two possible origins of the remnant dynamical spin fluctuations: frustration of the exchange interactions and the dynamic behavior of the soliton lattice.
Rare-earth chalcohalides: A family of van der Waals layered Kitaev spin liquid candidates
Creators: name: Ji, Jianting
name: Sun, Mengjie
name: Cai, Yanzhen
name: Wang, Yimeng
name: Sun, Yingqi
name: Ren, Wei
name: Zhang, Zheng
name: Jin, Feng
name: Zhang, Qingming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Kitaev spin liquid (KSL) system has attracted tremendous attention in past years because of its fundamental significance in condensed matter physics and promising applications in fault-tolerant topological quantum computation. Material realization of such a system remains a major challenge in the field due to the unusual configuration of anisotropic spin interactions, though great effort has been made before. Here we reveal that rare-earth chalcohalides REChX (RE=rare earth, Ch=O, S, Se, Te, X=F, Cl, Br, I) can serve as a family of KSL candidates. Most family members have the typical SmSI-type structure with a high symmetry of R-3m and rare-earth magnetic ions form an undistorted honeycomb lattice. The strong spin-orbit coupling of 4f electrons intrinsically offers anisotropic spin interactions as required by Kitaev model. We have grown the crystals of YbOCl and synthesized the polycrystals of SmSI, ErOF, HoOF and DyOF, and made careful structural characterizations. We carry out magnetic and heat capacity measurements down to 1.8 K and find no obvious magnetic transition in all the samples but DyOF. The van der Waals interlayer coupling highlights the true two-dimensionality of the family which is vital for the exact realization of Abelian/non-Abelian anyons, and the graphene-like feature will be a prominent advantage for developing miniaturized devices. The family is expected to act as an inspiring material platform for the exploration of KSL physics.
description: 6 pages, 6 figures, 2 tables
Effectively Teaching Students with Special Educational Needs: A Template Analysis and Comparison of Mainstream and Special Education Teachers’ Knowledge.
Creators: name: Delafontaine, Jolien
name: Nijs, Sara
name: Aesaert, Koen
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Education
subject: Special Education and Teaching
subject: Elementary Education

description: This study investigates and compares mainstream and special education teachers' knowledge on effectively teaching students with Special Educational Needs (SEN). Through semi-structured interviews 24 Flemish primary education teachers (12 mainstream education teachers and 12 special education teachers) are questioned about their knowledge on effective teaching for students with SEN with regard to the six elements within 'Activating Hard Thinking' dimension of the Great Teaching Toolkit (GTT, Coe et al., 2020): structuring, explaining, questioning, interacting, embedding and activating. Using a template analysis approach a conceptualization of effective teaching for students with SEN will be developed and differences between special and mainstream education teachers will be investigated.
A sonar imaging system
Creators: name: Smayra, Michael K. A.
Publisher: name: University of British Columbia
Year: 2008

description: In this thesis, a sonar mine detection system is presented. The three stages of the system, image enhancement, edge detection and data compression are analyzed. For each stage, different approaches are studied and the appropriate algorithm is chosen. For image enhancement, a cascaded morphological enhancement algorithm is developed. Our algorithm is shown to preserve high-detail regions, including edges surrounding features of concern (suspect mines) and their corresponding shadows. This is accomplished without introducing any blurring, which is an inherent side-effect of conventional enhancement algorithms. For edge detection, amongst various methods, we have found the two dimensional morphological edge detector, the Alpha-Trimmed Morphological (ATM) filter, to be immune to noise, a major problem encountered in sonar imagery, and consequently this filter has outperformed the other conventional edge detectors. At the compression stage, three algorithms are examined. The Vector Quantization (VQ) method, using a new codebook generation algorithm, which we have developed, is found to yield very high quality reconstructed images. The decompressed images have their high-detail regions well preserved, and furthermore the low-detail regions are minimally distorted, to the extent that the reconstructed images are virtually indistinguishable from the original images. With the new compression algorithm, a compression ratio of 1:10, or equivalently 0.8 bits per pixel (bpp) is achieved. Furthermore, the processing time for codebook generation is greatly shortened.
Reply to "Comment on 'Dr. Bertlmann's Socks in a Quaternionic World of Ambidextral Reality'"
Creators: name: Christian, Joy
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In this paper, I respond to a critique of one of my papers previously published in this journal, entitled `Dr. Bertlmann's socks in a quaternionic world of ambidextral reality.' The geometrical framework presented in my paper is based on a quaternionic 3-sphere, or S^3, taken as a model of the physical space in which we are inescapably confined to perform all our experiments. The framework intrinsically circumvents Bell's theorem by reproducing the singlet correlations local-realistically, without resorting to backward causation, superdeterminism, or any other conspiracy loophole. In this response, I demonstrate point by point that, contrary to its claims, the critique has not found any mistakes in my paper, either in the analytical model of the singlet correlations or in its event-by-event numerical simulation based on Geometric Algebra.
description: 12 pages, 1 figure, Published version of my response to arXiv:2001.11338
Observation of VHE Gamma Radiation from HESS J1834-087/W41 with the MAGIC Telescope
Creators: name: al., J. Albert et
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, the HESS array has reported the detection of gamma-ray emission above a few hundred GeV from eight new sources located close to the Galactic Plane. The source HESS J1834-087 is spatially coincident with SNR G23.3-0.3 (W41). Here we present MAGIC observations of this source, resulting in the detection of a differential gamma-ray flux consistent with a power law, described as dN/(dA dt dE) = (3.7 +/- 0.6)*10^(-12) (E/TeV)^(-2.5 +/- 0.2) \ cm^(-2)s^(-1)TeV^(-1). We confirm the extended character of this flux. We briefly discuss the observational technique used, the procedure implemented for the data analysis, and put this detection in the perspective of the molecular environment found in the region of W41. We present 13CO and 12CO emission maps showing the existence of a massive molecular cloud in spatial superposition with the MAGIC detection.
description: Accepted by ApJ Letters
title: Rapport de voyage, Ile de France (1926) : Ligne de New-York, 1955, voyage n°31
Creators: name: Comilia, Jean
name: Couetoux du Tertre, Fernand
name: Delsart, André
name: Monnier, Jean Albert
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: subject: Compagnie Générale Transatlantique
subject: Transports maritimes - Histoire
subject: Marine marchande
subject: Journaux de bord

description: Chapitrage : Rapport général / du capitaine - Rapport du commissaire - Rapport du second - Rapport de l'officier de sécurité - Rapport de l'officier de navigation - Rapport du médecin - Rapport contentieux
description: Source: French Lines & Compagnies, 1997 004 5071-33
description: Coverage: 1955-08-30/1955-09-13
Robert's Farm of Ideas: 4 -- spectrum prediction from conversion
Creators: name: Giessmann, Robert T.
Publisher: name: Zenodo
Year: 2021
Subjects: spectral unmixing
spectral deconvolution
nucleoside
nucleobase
reaction monitoring

description: It is possible to predict the spectrum of e.g. a nucleobase in a nucleoside-nucleobase conversion. .
description: Development is happening here: https://github.com/roberts-farm-of-ideas/4
Parkes Error Grid Analysis Templates for Type 1 and 2 Diabetes Mellitus
Creators: name: Mondal, Himel
Publisher: name: figshare
Year: 2021
Subjects: subject: 10402 Biostatistics
subject: FOS: Mathematics

description: This is a Microsoft Excel spreadsheet file containing templates for Parkes Error Grid analysis (Also known as Consensus Error Grid Analysis). This is for generating figures for presenting in manuscript; the actual analysis to be done manually on graph paper.
An explicit Skorokhod embedding for spectrally negative Levy processes
Creators: name: Obloj, Jan
name: Pistorius, Martijn
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G51, 60G40

description: We present an explicit solution to the Skorokhod embedding problem for spectrally negative Lévy processes. Given a process $X$ and a target measure $μ$ satisfying an explicit admissibility condition we define functions $\f_\pm$ such that the stopping time $T = \inf\{t>0: X_t \in \{-\f_-(L_t), \f_+(L_t)\}\}$ induces $X_T\sim μ$. We also treat versions of $T$ which take into account the sign of the excursion straddling time $t$. We prove that our stopping times are minimal and we describe criteria under which they are integrable. We compare our solution with the one proposed by Bertoin and Le Jan (1992) and we compute explicitly their general quantities in our setup. Our method relies on some new explicit calculations relating scale functions and the Itô excursion measure of $X$. More precisely, we compute the joint law of the maximum and minimum of an excursion away from 0 in terms of the scale function.
description: This is the final version of the paper that has been accepted for publication in J. Theor. Probab. In this new version several typos were corrected and Lemma 6(iii) [now Lemma 5(iii)] was modified. The original publication is available at http://www.springerlink.com
Transdiagnostic Written Exposure Therapy: a Randomized Control Trial
Creators: name: Zlotnick, Elad
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: The goal of the current project is to evaluate a self-administered, brief online written
exposure therapy (WET) intervention. This intervention was adapted from WET
for PTSD (Sloan & Marx, 2019) and is designed to be transdiagnostic, focus on
participants’ core fears (Huppert & Zlotnick, 2012) and use an immersive perspec-
tive similar to imaginal exposure (IE; Asnaani et al., 2016). The intervention will
be tested in an online randomized controlled trial with a trans-diagnostic sample
of individuals with high levels of anxiety. Therefore, we will test treatment efficacy
as measured by change in anxiety and functioning. Furthermore we will investigate
patterns of change and potential mechanisms of change.
Subjective and Objective Visual Quality Assessment of Textured 3D Meshes
Creators: name: Guo, Jinjiang
name: Vidal, Vincent
name: Cheng, Irene
name: Basu, Anup
name: Baskurt, Atilla
name: Lavoue, Guillaume
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Objective visual quality assessment of 3D models is a fundamental issue in computer graphics. Quality assessment metrics may allow a wide range of processes to be guided and evaluated, such as level of detail creation, compression, filtering, and so on. Most computer graphics assets are composed of geometric surfaces on which several texture images can be mapped to 11 make the rendering more realistic. While some quality assessment metrics exist for geometric surfaces, almost no research has been conducted on the evaluation of texture-mapped 3D models. In this context, we present a new subjective study to evaluate the perceptual quality of textured meshes, based on a paired comparison protocol. We introduce both texture and geometry distortions on a set of 5 reference models to produce a database of 136 distorted models, evaluated using two rendering protocols. Based on analysis of the results, we propose two new metrics for visual quality assessment of textured mesh, as optimized linear combinations of accurate geometry and texture quality measurements. These proposed perceptual metrics outperform their counterparts in terms of correlation with human opinion. The database, along with the associated subjective scores, will be made publicly available online.
FLY: MPI-2 High Resolution code for LSS Cosmological Simulations
Creators: name: Becciani, U.
name: Antonuccio, V.
name: Comparato, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Cosmological simulations of structures and galaxies formations have played a fundamental role in the study of the origin, formation and evolution of the Universe. These studies improved enormously with the use of supercomputers and parallel systems and, recently, grid based systems and Linux clusters. Now we present the new version of the tree N-body parallel code FLY that runs on a PC Linux Cluster using the one side communication paradigm MPI-2 and we show the performances obtained. FLY is included in the Computer Physics Communication Program Library. This new version was developed using the Linux Cluster of CINECA, an IBM Cluster with 1024 Intel Xeon Pentium IV 3.0 Ghz. The results show that it is possible to run a 64 Million particle simulation in less than 15 minutes for each timestep, and the code scalability with the number of processors is achieved. This lead us to propose FLY as a code to run very large N-Body simulations with more than $10^{9}$ particles with the higher resolution of a pure tree code. The FLY new version will be available at http://www.ct.astro.it/fly/ and CPC Program Library.
description: 15 pages, 5 figures
Hidden zero-temperature bicritical point in the two-dimensional anisotropic Heisenberg model: Monte Carlo simulations and proper finite-size scaling
Creators: name: Zhou, Chenggang
name: Landau, D. P.
name: Schulthess, Thomas C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: By considering the appropriate finite-size effect, we explain the connection between Monte Carlo simulations of two-dimensional anisotropic Heisenberg antiferromagnet in a field and the early renormalization group calculation for the bicritical point in $2+ε$ dimensions. We found that the long length scale physics of the Monte Carlo simulations is indeed captured by the anisotropic nonlinear $σ$ model. Our Monte Carlo data and analysis confirm that the bicritical point in two dimensions is Heisenberg-like and occurs at T=0, therefore the uncertainty in the phase diagram of this model is removed.
description: 10 pages, 11 figures
ePsyCHI - Theoretical mapping
Creators: name: Barbier, Laura
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences

description: The referencing of behavior change theories has revealed that there are links between theories. Indeed, some theories are inspired by existing theories. So we created a dynamic map of these links, indicating which behavior change theories were the most widely used, and which contained the greatest number of constructs inspired by other theories.
Fundamental formalism of statistical mechanics and thermodynamics of negative kinetic energy systems
Creators: name: Wang, Huai-Yu
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The solutions of a particle's Dirac equation contains a negative kinetic energy (NKE) branch. Such an energy spectrum has an upper limit but no lower limit, so that the system with this spectrum, called NKE system, is of negative temperature. Fundamental formulas of statistical mechanics and thermodynamics of NKE systems are presented. All the formulas have the same forms of those of positive kinetic energy (PKE) systems. Almost all thermodynamic quantities, except entropy and specific heat, have a contrary sign compared to those of PKE systems. Specially, pressure is negative and its microscopic mechanism is given. Entropy is always positive and Boltzmann entropy formula remains valid. The three laws of thermodynamics remain valid, as long as the thermodynamic quantities have a negative sign. Negative temperature Carnot engine can work between two negative temperatures. Since the NKE levels need not be fully filled, it is argued that the concept of Dirac's Fermion Sea can be totally abandoned.
description: 12 pages, 2 tables
Nanostructure and microstructure of laser-interference induced dynamic patterning of Co on Si
Creators: name: Longstreth-Spoor, L.
name: Trice, J.
name: Garcia, H.
name: Zhang, C.
name: Kalyanaraman, Ramki
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have investigated the nanostructure and microstructure resulting from ns laser irradiation simultaneous with deposition of Co films on Si(001) substrates. The spatial order and length scales of the resulting nanopatterns and their crystalline microstructure were investigated as a function of film thickness h and laser energy density E using a combination of atomic force, scanning electron and transmission electron microscopies. The results could be classified into two distinct categories based on the laser energy density used. It was observed that the thickness-dependent E required to melt the Co film (E_{Co}) was lower than Si (E_{Si}) primarily because of the higher reflectivity of Si. Consequently, for energy densities E_{Co}
description: Submitted to J. Phys. D: Appl. Phys