cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerical relativity in black hole spacetimes
Creators: name: Thornburg, Jonathan
Publisher: name: University of British Columbia
Year: 2008

description: This thesis is concerned with the development of better techniques for the 3 + 1 numerical relativity study of black hole spacetimes. The main result of this thesis is the development of a new technique for avoiding singularities in such spacetimes. In this technique the slices are allowed to penetrate the black hole, but only the region of spacetime outside the apparent horizon is numerically evolved. This allows the slicing to be chosen to avoid the "grid stretching" problems commonly encountered when freezing slicings are used. To implement this scheme, we have developed a robust and efficient apparent-horizon-finding algorithm. We use this at each time step during a numerical evolution to monitor the apparent horizon’s position; we then dynamically adjust the region of spacetime excluded from the numerical evolution so this region tracks the apparent horizon's motion. In this thesis we use coordinates in which all components of the metric and other 3 + 1 field tensors are (generally) nonzero. This makes the 3 + 1 equations very complex, so we have developed a prototype "PDE Compiler" to automatically finite difference them and generate the required code. This automation of the finite differencing process allows us to work with and think about the 3 + 1equations almost entirely at the tensor-differential-operator level. We have developed a new initial data solver, which numerically solves the full 4-vector York equations on slices which are generally not maximal and not 3-conformally-flat. Our numerical methods are based on 4th order finite differencing, using the method of lines for hyperbolic PDEs. To study these and our black hole exclusion technique in a simple setting, we have made a series of model problem studies using a 1-dimensional flat-space scalar wave equation. These have been very successful, yielding a stable and highly accurate finite differencing scheme. To test these techniques in a more realistic setting, we have written a prototype numerical relativity code to simulate the time evolution of axisymmetric (single) black hole spacetimes. At present, this code suffers from severe finite differencing instabilities. We have identified potential causes for some of these instabilities, but we have not yet resolved them.
Heat conduction in molecular transport junctions
Creators: name: Galperin, Michael
name: Ratner, Mark A.
name: Nitzan, Abraham
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Heating and heat conduction in molecular junctions are considered within a general NEGF formalism. We obtain a unified description of heating in current carrying molecular junctions as well as the electron and phonon contributions to the thermal flux, including their mutual influence. Ways to calculate these contributions, their relative importance and ambiguities in their definitions are discussed. A general expression for the phonon thermal flux is derived and used in a new "measuring technique", to define and quantify 'local temperature' in nonequilibrium systems. Superiority of this measuring technique over the usual approach that defines effective temperature using the equilibrium phonon distribution is demonstrated. Simple bridge models are used to illustrate the general approach, with numerical examples.
description: 31 pages, 12 figures
Class agnostic moving target detection by color and location prediction of moving area
Creators: name: He, Zhuang
name: Li, Qi
name: Feng, Huajun
name: Xu, Zhihai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Moving target detection plays an important role in computer vision. However, traditional algorithms such as frame difference and optical flow usually suffer from low accuracy or heavy computation. Recent algorithms such as deep learning-based convolutional neural networks have achieved high accuracy and real-time performance, but they usually need to know the classes of targets in advance, which limits the practical applications. Therefore, we proposed a model free moving target detection algorithm. This algorithm extracts the moving area through the difference of image features. Then, the color and location probability map of the moving area will be calculated through maximum a posteriori probability. And the target probability map can be obtained through the dot multiply between the two maps. Finally, the optimal moving target area can be solved by stochastic gradient descent on the target probability map. Results show that the proposed algorithm achieves the highest accuracy compared with state-of-the-art algorithms, without needing to know the classes of targets. Furthermore, as the existing datasets are not suitable for moving target detection, we proposed a method for producing evaluation dataset. Besides, we also proved the proposed algorithm can be used to assist target tracking.
Additional file 1 of Clinical and molecular analysis of four unrelated Chinese families with pathogenic KLHL40 variants causing nemaline myopathy 8
Creators: name: Yuan, Haiming
name: Wang, Qingming
name: Zeng, Xiumei
name: He, Peiqing
name: Xu, Wanfang
name: Guo, Hongmei
name: Liu, Yanhui
name: Lin, Yangyang
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Cancer
subject: Virology

description: Additional file 1. Table S1. Estimated pathogenic variants in KLHL40 in our local database on ACMG guidelines. Table S2. Estimated pathogenic or likely pathogenic variants in KLHL40 in Chigene database on ACMG guidelines.
See in der Großen Anlage von Musawwarat es Sufra?
Creators: name: Wolf, Pawel
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Grammatical and phonological elicitation: Wordhood and stress
Creators: name: Palacio, Frank
name: Dabkowski, Maksymilian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: cab

description: Vowel hiatus resolution with possessive prefixes, secondary stress with -gi 'still' and the potential '-di.' Stress shift with the passive -üwa.
Unidirectional Alignment of AgCN Microwires on Distorted Transition Metal Dichalcogenide Crystals
Creators: name: Jang, Myeongjin
name: Bae, Hyeonhu
name: Lee, Yangjin
name: Na, Woongki
name: Yu, Byungkyu
name: Choi, Soyeon
name: Cheong, Hyeonsik
name: Lee, Hoonkyung
name: Kim, Kwanpyo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Van der Waals epitaxy on the surface of two-dimensional (2D) layered crystals has gained significant research interest for the assembly of well-ordered nanostructures and fabrication of vertical heterostructures based on 2D crystals. Although van der Waals epitaxial assembly on the hexagonal phase of transition metal dichalcogenides (TMDCs) has been relatively well characterized, a comparable study on the distorted octahedral phase (1T' or Td) of TMDCs is largely lacking. Here we investigate the assembly behavior of one-dimensional (1D) AgCN microwires on various distorted TMDC crystals, namely 1T'-MoTe2, Td-WTe2, and 1T'-ReS2. The unidirectional alignment of AgCN chains is observed on these crystals, reflecting the symmetry of underlying distorted TMDCs. Polarized Raman spectroscopy and transmission electron microscopy directly confirm that AgCN chains display the remarkable alignment behavior along the distorted chain directions of underlying TMDCs. The observed unidirectional assembly behavior can be attributed to the favorable adsorption configurations of 1D chains along the substrate distortion, which is supported by our theoretical calculations and observation of similar assembly behavior from different cyanide chains. The aligned AgCN microwires can be harnessed as facile markers to identify polymorphs and crystal orientations of TMDCs.
description: 23 pages, 6 main figures
Twistors and 3-symmetric spaces
Creators: name: Butruille, Jean-Baptiste
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 22E60 ; 53C10 ; 53C28 ; 53C30

description: We describe complex twistor spaces over inner 3-symmetric spaces $G/H$, such that $H$ acts transitively on the fibre. Like in the symmetric case, these are flag manifolds $G/K$ where $K$ is the centralizer of a torus in $G$. Moreover, they carry an almost complex structure defined using the horizontal distribution of the normal connection on $G/H$, that coincides with the complex structure associated to a parabolic subgroup $P \subset G^{\mathbb C}$ if it is integrable. Conversely, starting from a complex flag manifold $G^{\mathbb C}/P$, there exists a natural fibration with complex fibres on a 3-symmetric space, called fibration of degree 3.
Grabungs- und Restaurierungskampagne 2004 in Musawwarat es Sufra
Creators: name: Wenig, Steffen
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Photoconductivity of Single-crystalline Selenium Nanotubes
Creators: name: Liu, Peng
name: Ma, Yurong
name: Cai, Weiwei
name: Wang, Zhenzhong
name: Qi, Limin
name: Chen, Dongmin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Photoconductivity of single-crystalline selenium nanotubes (SCSNT) under a range of illumination intensities of a 633nm laser is carried out with a novel two terminal device arrangement at room temperature. It's found that SCSNT forms Schottky barriers with the W and Au contacts, and the barrier height is a function of the light intensities. In low illumination regime below 1.46x10E-4 muWmum-2, the Au-Se-W hybrid structure exhibits sharp switch on/off behavior, and the turn-on voltages decrease with increasing illuminating intensities. In the high illumination regime above 7x10E-4 muWmum-2, the device exhibits ohmic conductance with a photoconductivity as high as 0.59Ohmcm-1, significantly higher that reported values for carbon and GaN nanotubes. This finding suggests that SCSNT is potentially a good photo-sensor material as well we a very effective solar cell material.
description: 12pages including 5 figures, submitted to Nanotechnology
Interval valued $(\in,\ivq)$-fuzzy filters of pseudo $BL$-algebras
Creators: name: Zhan, J.
name: Dudek, W. A.
name: Jun, Y. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Logic (math.LO)
subject: General Mathematics (math.GM)
subject: FOS: Mathematics
subject: 16Y99; 06D35; 03B52

description: We introduce the concept of quasi-coincidence of a fuzzy interval value with an interval valued fuzzy set. By using this new idea, we introduce the notions of interval valued $(\in,\ivq)$-fuzzy filters of pseudo $BL$-algebras and investigate some of their related properties. Some characterization theorems of these generalized interval valued fuzzy filters are derived. The relationship among these generalized interval valued fuzzy filters of pseudo $BL$-algebras is considered. Finally, we consider the concept of implication-based interval valued fuzzy implicative filters of pseudo $BL$-algebras, in particular, the implication operators in Lukasiewicz system of continuous-valued logic are discussed.
Subleading corrections to the $S^3$ free energy of necklace quiver theories dual to massive IIA
Creators: name: Hong, Junho
name: Liu, James T.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the $S^3$ free energy of $\mathcal N=3$ Chern-Simons-matter quiver gauge theories with gauge group $U(N)^r~(r\geq2)$ where the sum of Chern-Simons levels does not vanish, beyond the leading order in the large-$N$ expansion. We take two different approaches to explore the sub-leading structures of the free energy. First we evaluate the matrix integral for the partition function in the 't~Hooft limit using a saddle point approximation. Second we use an ideal Fermi-gas model to compute the same partition function, but in the limit of fixed Chern-Simons levels. The resulting expressions for the free energy $F=-\log Z$ are consistent with each other at the leading and first sub-leading order. The Fermi-gas approach also hints at a universal $\frac{1}{6}\log N$ correction to the free energy. Since the quiver gauge theories we consider are dual to massive Type IIA theory, we expect our results to match sub-leading corrections to the holographic dual free energy, which have not yet been fully investigated.
description: v1: 50 pages, 1figure; v2: minor revisions
An inverse source problem for the heat equation and the enclosure method
Creators: name: Ikehata, Masaru
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 35R30;80A23

description: An inverse source problem for the heat equation is considered. Extraction formulae for information about the time and location when and where the unknown source of the equation firstly appeared are given from a single lateral boundary measurement. New roles of the plane progressive wave solutions or their complex versions for the backward heat equation are given.
description: 23pages
Effects of Zero Mode and Thin Spectrum on the Life Time of Atomic Bose Einstein Condensates
Creators: name: Birol, Turan
name: Müstecaplıoğlu, Özgür E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Reviewing the ideas developed in, the ground state life time of a finite size atomic Bose Einstein condensate is studied for coherent, squeezed coherent and thermal coherent ground states. Ground state evolution of coherent and squeezed coherent states in a double well potential is studied. Effects of thin spectrum on Bose-Einstein condensates is discussed and quasiparticle excitation lifetimes are calculated. It is shown that the effect of the states we use on the free energy vanishes in the thermodynamic limit. Possible extension to a double well potential and effect of a second broken symmetry is also discussed.
description: 8 pages, 9 figures, Proceeding of 14th Central European Workshop on Quantum Optics To be published in European Physical Journal Special Topics
Understanding and mitigating noise in trained deep neural networks
Creators: name: Semenova, Nadezhda
name: Larger, Laurent
name: Brunner, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Deep neural networks unlocked a vast range of new applications by solving tasks of which many were previously deemed as reserved to higher human intelligence. One of the developments enabling this success was a boost in computing power provided by special purpose hardware, such as graphic or tensor processing units. However, these do not leverage fundamental features of neural networks like parallelism and analog state variables. Instead, they emulate neural networks relying on binary computing, which results in unsustainable energy consumption and comparatively low speed. Fully parallel and analogue hardware promises to overcome these challenges, yet the impact of analogue neuron noise and its propagation, i.e. accumulation, threatens rendering such approaches inept. Here, we determine for the first time the propagation of noise in deep neural networks comprising noisy nonlinear neurons in trained fully connected layers. We study additive and multiplicative as well as correlated and uncorrelated noise, and develop analytical methods that predict the noise level in any layer of symmetric deep neural networks or deep neural networks trained with back propagation. We find that noise accumulation is generally bound, and adding additional network layers does not worsen the signal to noise ratio beyond a limit. Most importantly, noise accumulation can be suppressed entirely when neuron activation functions have a slope smaller than unity. We therefore developed the framework for noise in fully connected deep neural networks implemented in analog systems, and identify criteria allowing engineers to design noise-resilient novel neural network hardware.
Ultrafast Photoinduced Formation of Metallic State in a Perovskite-type Manganite with Short Range Charge and Orbital Order
Creators: name: Okimoto, Yoichi
name: Matsuzaki, Hiroyuki
name: Tomioka, Yasuhide
name: Kezsmarki, Istvan
name: Ogasawara, Takeshi
name: Matsubara, Masakazu
name: Okamoto, Hiroshi
name: Tokura, Yoshinori
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Femtosecond reflection spectroscopy was performed on a perovskite-type manganite, Gd0.55Sr0.45MnO3, with the short-range charge and orbital order (CO/OO). Immediately after the photoirradiation, a large increase of the reflectivity was detected in the mid-infrared region. The optical conductivity spectrum under photoirradiation obtained from the Kramers-Kronig analyses of the reflectivity changes demonstrates a formation of a metallic state. This suggests that ferromagnetic spin arrangements occur within the time resolution (ca. 200 fs) through the double exchange interaction, resulting in an ultrafast CO/OO to FM switching.
description: 4 figures
Infrared study on the electronic structure of alkaline-earth-filled skutterudites AT4Sb12 (A = Sr, Ba; M = Fe, Ru, Os)
Creators: name: Kimura, Shin-ichi
name: Im, Hojun
name: Mizuno, Takafumi
name: Narazu, Shota
name: Matsuoka, Eiichi
name: Takabatake, Toshiro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The optical conductivity [$σ(ω)$] spectra of alkaline-earth-filled skutterudites with the chemical formula $A^{2+}M_{4}$Sb$_{12}$ ($A$ = Sr, Ba, $M$ = Fe, Ru, Os) and a reference material La$^{3+}$Fe$_{4}$Sb$_{12}$ were obtained and compared with the corresponding band structure calculations and with calculated $σ(ω)$ spectra to investigate their electronic structures. At high temperatures, the energy of the plasma edge decreased with the increasing valence of the guest atoms $A$ in the Fe$_{4}$Sb$_{12}$ cage indicating hole-type conduction. A narrow peak with a pseudogap of 25 meV was observed in SrFe$_{4}$Sb$_{12}$, while the corresponding peak were located at 200 and 100 meV in the Ru- and Os-counterparts, respectively. The order of the peak energy in these compounds is consistent with the thermodynamical properties in which the Os-compound is located between the Fe- and Ru-compounds. This indicated that the electronic structure observed in the infrared $σ(ω)$ spectra directly affects the thermodynamical properties. The band structure calculation implies the different electronic structure among these compounds originates from the different $d$ states of the $M$ ions.
description: 7 pages, 6 figures
Spitzer Observations of Nearby M Dwarfs
Creators: name: Riaz, Basmah
name: Mullan, D. J.
name: Gizis, John E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present Spitzer IRAC and MIPS observations for a sample of eight M dwarfs: six dMe, one dM, and one sdMe star. All of our targets are found to have SEDs which are fitted within the error bars by a purely photospheric spectrum out to 24 micron. We find no evidence for IR excess. None of our targets is detected in the MIPS 70 and 160 micron bands. The estimated ages for all are >10 Myr, suggesting that enough disk dissipation has occurred within the inner several AU of the star. For four of these, Mullan et al. (1989) had reported IRAS detections at 12 micron, although the reported fluxes were below the 5-sigma IRAS detection limit (~0.2 Jy). Mullan et al. also pointed out that V-K colors in dMe stars are larger than those in dM stars, possibly because of the presence of a chromosphere. Here we suggest that metallicity effects provide a better explanation of the V-K data. For reasons of observational selection, our targets are not the most active flare stars known, but being dMe stars indicates the presence of a chromosphere. Scaling from Houdebine's model of the AU Mic chromosphere, we have computed the free-free infrared excesses for a range of densities. Our Spitzer 24 micron data shows that the chromospheres in two of our targets are less dense than in AU Mic by a factor of 10 or more. This is consistent with the fact that our sample includes the less active flare stars. Our models also indicate that the chromospheric contribution to the observed AU Mic emission at submillimeter wavelengths is only about 2%.
description: 20 pages, 5 figures, accepted in ApJ
Karte: Antiker Sudan
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Inhaltsverzeichnis
Creators: name: Redaktion, Die
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2021

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Nr. 15 (2004): Der Antike Sudan
Constructing Surveys
Creators: name: Sewell, Claire
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019
Subjects: questionnaires
surveys
libraries

description: Surveys are a popular way to collect data on a range of topics related to your library service but it is all too easy to get them wrong. If you struggle to design effective surveys you are not alone – they are often far more complex than they look. This interactive session will outline the basics of designing a survey, how to draft questions to get the answers you really want, some of the common pitfalls to avoid, the different software options available to help you and some tips and tricks for using surveys effectively. At the end of the session attendees will be able to put together a successful survey on a range of topics.
Two-dimensional spin-1 frustrated Heisenberg model with valence-bond ground states
Creators: name: Cai, Zi
name: Chen, Shu
name: Kou, Supeng
name: Wang, Yupeng
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this paper, we propose a method to understand the nature for the quantum disorder phase of the two-dimensional (2D) high spin frustrated model. The ground state and excitation properties of a fully frustrated 2D spin-1 model are studied based on a model whose groundstate can be found exactly. By analogy to the pseudo-potential approach in the fractional quantum Hall effect, we conclude that the ground states of the fully frustrated spin-1 model are doubly degenerate valance bond solid (VBS) states along the horizontal or vertical direction of the square lattice. We also find that the ground state could be characterized by a nonzero string order, which rarely happened in the 2D case. The method that we used is novel for a 2D spin system and reveals the connection between the fractional quantum hall effect and the frustrated 2D antiferromagnetism system. The VBS states capture the main character of the disordered phase in the 2D spin-1 frustrated system, and can be verified by a numerical method.
description: 7 pages, 3 figures
Noncommutative Standard Model in Top Quark Sector
Creators: name: Najafabadi, Mojtaba Mohammadi
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this article we aim to estimate the bounds on the noncommutative scale $Λ_{NC}$ and to extract the 95% exclusion contours for some $θ_{μν}$ components using the recent measurements of the top quark width and the $W$ boson polarization in top pair events from CDF experiment at Tevatron.
description: 12 pages, 1 figures
Human skin optical properties and autofluorescence decay dynamics
Creators: name: Zeng, Haishan
Publisher: name: University of British Columbia
Year: 2008

description: Human skin is an optical organ which constantly interacts with light. Its optical properties are fundamental to understanding various effects of light-tissue interaction inhuman skin and to laser applications in medicine and biology. The aim of this thesis was to test two hypotheses: (1) that skin optical properties can be quantitatively modeled, and (2)that in vivo spectroscopic measurements can be used to derive information about skin structures. Both theoretical and experimental procedures were used to test these hypotheses. Experimental studies were completed in terms of macroscopic, in vivo diffuse reflectance spectroscopy, autofluorescence spectroscopy, and temporal behavior of the autofluorescence signal during continuous laser exposure, as well as microscopic in vitro fluorophore distribution and spectral differences. Several interesting physical phenomena were discovered. Three new methods were developed for deriving information of different skin layers from in vivo and in vitro measurements. The most interesting finding was that, under continuous laser exposure, skin autofluorescence decays following a double exponential function and that the autofluorescence recovery takes about six days. A seven layer skin optical model was developed based on(1) the structural anatomy of skin, (2) published optical properties of different skin layers and blood, and (3) measured skin fluorophore micro-distribution. Monte Carlo simulation was used to solve the Boltzmann equation of radiative transfer for the new skin model. The solutions provided a detailed knowledge of light propagation in skin tissue. The theoretical modeling unified the microscopic properties with the macroscopic in vivo skin measurements. The physical meaning of the auto fluorescence double exponential decay dynamics was also elucidated. It was shown that the coefficients of the double decay can be used to estimate the fractional contributions of different skin layers to the observed in vivo auto fluorescence signal. Using this approach, it was determined that the fractional contribution of the stratum corneum was - 14%, while the calculated value for the Monte Carlo skin model was - 15%, providing a close agreement between experimental and theoretical values. The dermis contributed the remaining 85% of the observed in vivo signal. We therefore, believe that the thesis hypotheses have been substantially proven. Although the skin has complicated inhomogeneous structures, its optical properties can now be quantitatively modeled and various modalities of in vivo skin spectroscopy can be used to derive information on skin structures.
Double deeply virtual Compton scattering with positron beams at SoLID
Creators: name: Zhao, S.
name: Camsonne, A.
name: Marchand, D.
name: Mazouz, M.
name: Sparveris, N.
name: Stepanyan, S.
name: Voutier, E.
name: Zhao, Z. W.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Double Deeply Virtual Compton Scattering (DDVCS) is the only experimental channel for the determination of the dependence of the Generalized Parton Distributions (GPDs) on both the average and the transferred momentum independently. The physics observables of the electron induced di-muon production reaction $\vv{e}^{\pm}p \to e^{\pm}pμ^+μ^-$ off unpolarized hydrogen are discussed. Their measurement with the high luminosity and large acceptance SoLID spectrometer at the Thomas Jefferson National Accelerator Facility, using polarized and unpolarized positron and electron beams at 11 GeV is investigated. This experimental configuration is shown to provide unprecedented access to the GPDs with the determination of the real and imaginary parts of the Compton Form Factor ${\mathcal H}$ in an unexplored phase space, and to enable an exploratory investigation of higher twist effects.
description: 9 pages, 9 figures
Baryon number conservation and enforced electric charge neutrality for bulk viscosity in quark matter
Creators: name: Dong, Hui
name: Su, Nan
name: Wang, Qun
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: General constraints on fluid velocity divergences for particles in quark matter are derived from baryon number conservation and enforced electric charge neutrality. A new oscillation pattern in three-flavor normal quark matter satisfying these conditions is found and its bulk viscosity is calculated. The result may have astrophysical implication for maximum rotation frequencies of compact stars.
description: ReVTex 4, 5 pages, 3 figures; some comments added; accepted version to PRD
Stretched Exponential Relaxation Arising from a Continuous Sum of Exponential Decays
Creators: name: Johnston, D. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Stretched exponential relaxation of a quantity n versus time t according to n = n_0 exp[-(lambda* t)^beta] is ubiquitous in many research fields, where lambda* is a characteristic relaxation rate and the stretching exponent beta is in the range 0 < beta < 1. Here we consider systems in which the stretched exponential relaxation arises from the global relaxation of a system containing independently exponentially relaxing species with a probability distribution P(lambda/lambda*,beta) of relaxation rates lambda. We study the properties of P(lambda/lambda*,beta) and their dependence on beta. Physical interpretations of lambda* and beta, derived from consideration of P(lambda/lambda*,beta) and its moments, are discussed.
description: 8 pages, 10 figures; version to be published in Phys. Rev. B
Making Tezos smart contracts more reliable with Coq
Creators: name: Bernardo, Bruno
name: Cauderlier, Raphaël
name: Claret, Guillaume
name: Jakobsson, Arvid
name: Pesin, Basile
name: Tesson, Julien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Tezos is a smart-contract blockchain. Tezos smart contracts are written in a low-level stack-based language called Michelson. This article gives an overview of efforts using the Coq proof assistant to have stronger guarantees on Michelson smart contracts: the Mi-Cho-Coq framework, a Coq library defining formal semantics of Michelson, as well as an interpreter, a simple optimiser and a weakest-precondition calculus to reason about Michelson smart contracts; Albert, an intermediate language that abstracts Michelson stacks with a compiler written in Coq that targets Mi-Cho-Coq.
Multi-level stochastic refinement for complex time series and fields: A Data-Driven Approach
Creators: name: Sinhuber, M.
name: Friedrich, J.
name: Grauer, R.
name: Wilczek, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Spatio-temporally extended nonlinear systems often exhibit a remarkable complexity in space and time. In many cases, extensive datasets of such systems are difficult to obtain, yet needed for a range of applications. Here, we present a method to generate synthetic time series or fields that reproduce statistical multi-scale features of complex systems. The method is based on a hierarchical refinement employing transition probability density functions (PDFs) from one scale to another. We address the case in which such PDFs can be obtained from experimental measurements or simulations and then used to generate arbitrarily large synthetic datasets. The validity of our approach is demonstrated at the example of an experimental dataset of high Reynolds number turbulence.
description: 15 pages, seven figures
BC-SIM-TR-028 SIMBIO-SYS ICO#03 Interchannel Test Report
Creators: name: ZUSI, MICHELE
name: SIMIONI, Emanuele
name: DELLA CORTE, VINCENZO
name: POLITI, ROMOLO
name: CREMONESE, Gabriele
name: CAPACCIONI, FABRIZIO
name: Doressoundiram, Alain
name: PALUMBO, PASQUALE
name: RE, Cristina
name: Vincendon, Mathieu
Publisher: name: IAPS Roma
Year: 2022

description: Alla mia meravigliosa famiglia
description: This document contains the results and the discussion on the interchannel test performed during the Instrument Check Out Phase (ICO#3) of the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS).
Lieb's Theorem and Maximum Entropy Condensates
Creators: name: Tindall, J.
name: Schlawin, F.
name: Sentef, M.
name: Jaksch, D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Coherent driving has established itself as a powerful tool for guiding a many-body quantum system into a desirable, coherent non-equilibrium state. A thermodynamically large system will, however, almost always saturate to a featureless infinite temperature state under continuous driving and so the optical manipulation of many-body systems is considered feasible only if a transient, prethermal regime exists, where heating is suppressed. Here we show that, counterintuitively, in a broad class of lattices Floquet heating can actually be an advantageous effect. Specifically, we prove that the maximum entropy steady states which form upon driving the ground state of the Hubbard model on unbalanced bi-partite lattices possess uniform off-diagonal long-range order which remains finite even in the thermodynamic limit. This creation of a `hot' condensate can occur on \textit{any} driven unbalanced lattice and provides an understanding of how heating can, at the macroscopic level, expose and alter the order in a quantum system. We discuss implications for recent experiments observing emergent superconductivity in photoexcited materials.
description: 10 pages, 3 figures
Système de représentation d'aide au besoin dans le domaine architectural
Creators: name: Ango-Obiang, Marie-France
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Computer Science (cs.OH)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: The image is a very important mean of communication in the field of architectural who intervenes in the various phases of the design of a project. It can be regarded as a tool of decision-making aid. The study of our research aims at to see the contribution of the Economic Intelligence in the resolution of a decisional problem of the various partners (Architect, Contractor, Customer) in the architectural field, in order to make strategic decisions within the framework of the realization or design of an architectural work. The economic Intelligence allows the taking into account of the real needs for the user-decision makers, so that their waiting are considered at the first stage of a search for information and not in the final stage of the development of the tool in the evaluation of this last.
Accuracy of the quantum regression theorem for photon emission from a quantum dot
Creators: name: Cosacchi, M.
name: Seidelmann, T.
name: Cygorek, M.
name: Vagov, A.
name: Reiter, D. E.
name: Axt, V. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quantum regression theorem (QRT) is the most-widely used tool for calculating multitime correlation functions for the assessment of quantum emitters. It is an approximate method based on a Markov assumption for the environmental coupling. In this work we quantify properties of photons emitted from a single quantum dot coupled to phonons. For the single-photon purity and the indistinguishability, we compare numerically exact path-integral results with those obtained from the QRT. It is demonstrated that the QRT systematically overestimates the influence of the environment for typical quantum dots used in quantum information technology.
description: 8 pages, 2 figures; Erratum added to ancillary files: main conclusions unchanged, additional insights on PMEs
Grammatical elicitation: Purpose and reason clauses
Creators: name: Palacio, Frank
name: Björklund, Anna
name: Dabkowski, Maksymilian
name: Elias, Alexander
name: López Márquez, Wendy
name: Michael, Lev
name: Montaño Ramírez, Tzintia
name: Robertson, Allegra
name: Robinson, Dakota
name: Wellstood, Zachary
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: cab

description: Varies coreferentiality of matrix and subordinate clause subject and object.
Οι αυλές των ελληνικών ιδιωτικών κατοικιών κατά τα κλασικά και ελληνιστικά χρόνια
Creators: name: Καλμπουρτζή, Ελένη Χαραλάμπους
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Αυλές
Όλυνθος
Παστάδα
Courts
Olynthus
Pastas

description: Η παρούσα διπλωματική εργασία επικεντρώθηκε στη μελέτη των αυλών των ιδιωτικών κατοικιών κατά τα κλασικά και ελληνιστικά χρόνια. Για τη συγκεκριμένη έρευνα συγκεντρώθηκαν και μελετήθηκαν τα κινητά ευρήματα και τα αρχιτεκτονικά κατάλοιπα των αυλών και των παστάδων από τις κατοικίες της Ολύνθου. Στόχος ήταν η μελέτη της λειτουργίας των χώρων και οι δραστηριότητες που πραγματοποιούνταν σε αυτούς, παραθέτοντας τα δεδομένα και σε πίνακες. Για μία ολοκληρωμένη συζήτηση σχετικά με τις αυλές ήταν αναγκαίο να αναλυθεί και η εξέλιξη των αυλών στην πάροδο των χρόνων, αλλά και οι διαφοροποιήσεις που παρατηρούνται σε αυτές από άλλες πόλεις του ηπειρωτικού και νησιωτικού κορμού της Ελλάδας. Τα μικροαντικείμενα που αποκαλύφθηκαν στις αυλές και στις παστάδες της Ολύνθου παρουσιάζονται αναλυτικά ανά είδος ευρήματος στο τέλος της εργασίας σε δύο καταλόγους, ενώ παραθέτονται τα ευρήματα των δύο αυτών χώρων και συνολικά για κάθε κατοικία
description: The present thesis is focused on the study of the courts of private houses during the Classical and Hellenistic periods. For this specific research, the portable findings and the architectural remains of the courtyards and the pastas from the houses of Olynthus were collected and studied. The point was to study the operation of the spaces and the activities carried out in them, stating the data in tables as well. For a comprehensive discussion about the courts, it was necessary to analyze the evolution of the courts over the years, but also the differences that are observed in them from various cities of the mainland and the islands of Greece. The mobile findings that were discovered in the courts and the pastas of Olynthus are presented in detail by type of finding at the end of the assignment in two catalogues, while the findings of these two places are listed in total for each house
BC-SIM-TN-013 STC Inflight Dark Calibration
Creators: name: SIMIONI, Emanuele
name: Da Deppo, Vania
name: ZUSI, MICHELE
name: BALESTRA, Andrea
name: POLITI, ROMOLO
name: DELLA CORTE, VINCENZO
name: SLEMER, Alessandra
name: CREMONESE, Gabriele
name: CAPACCIONI, FABRIZIO
name: RE, Cristina
name: Doressoundiram, Alain
name: PALUMBO, PASQUALE
name: Vincendon, Mathieu
Publisher: name: O.A. Padova
Year: 2022

description: Un ringraziamento va ad ASI per il supporto per il progetto.
description: In this document, we reported the history of the tests performed on the STC detector in the first two years of the BepiColombo’s cruise phase. The scope of these tests was to monitor the dark current behavior of the STC channel’s detector. A detailed description is provided for each test phase: data acquired, the deducted results and conclusions. The STC Channel is part of SIMBIO-SYS, a scientific payload of the BepiColombo ESA-JAXA mission to Mercury. During the NECP (Near-Earth Commissioning Phase ), all the initial commissioning activities were completed and the three channels of SIMBIO-SYS have operated properly demonstrating that all the channels and subsystems worked nominally. Since then, every six months different instrument checkouts have been carried-out to check the performance of the three SIMBIO-SYS channels and improve their calibration. This document reports the conclusion on the Dark calibration of STC Channel due to the analysis of the ICOs tests.
Dirty Superconductivity in the Electron-Doped Cuprate PCCO: a Tunneling Study
Creators: name: Dagan, Y.
name: Beck, R.
name: Greene, R. L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report a tunneling study between Pr_2-xCe_xCuO_{4-delta} (PCCO) and Lead as a function of doping, temperature and magnetic field. The temperature dependence of the gap follows the BCS prediction. Our data fits a nonmonotonic d-wave order parameter for the whole doping range studied. From our data we are able to conclude that the electron-doped cuprate PCCO is a weak coupling, BCS, dirty superconductor.
Πρώτος διωγμός Ελλήνων στην Οθωμανική Αυτοκρατορία (1913-1914): Η περίπτωση της Κωνσταντινούπολης και της Σμύρνης
Creators: name: Ευσταθιάδου, Παρασκευή Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2020
Subjects: Διωγμός
Κωνσταντινούπολη
Σμύρνη
Persecution
Constantinople
Smyrna

description: Σκοπός της διπλωματικής εργασίας ήταν η μελέτη της ασκηθείσας πολιτικής προς τους Ρωμιούς της Κωνσταντινούπολης και της Σμύρνης κατά της διάρκεια του Πρώτου Διωγμού και συγκεκριμένα το χρονικό διάστημα 1913-1914. Επιπροσθέτως, μελετήθηκε η αντίδραση που πρόβαλαν οι επίσημοι ρωμαίικοι φορείς των δύο πόλεων για τους διωγμούς κατά των ομοεθνών τους που βίωναν τις βιαιοπραγίες, κυρίως στις αγροτικές περιοχές. Πιο συγκεκριμένα, εξετάστηκε η αντίδραση του Οικουμενικού Πατριαρχείου Κωνσταντινουπόλεως και της Μητρόπολης Σμύρνης, των ρωμιών βουλευτών και του ελληνικού κράτους. Όσον αφορά το ελληνικό κράτος έγινε μια αναλυτική περιγραφή της προσπάθειας ανταλλαγής πληθυσμών μεταξύ της Ελλάδας και της Οθωμανικής Αυτοκρατορίας κατά το 1914. Στην εργασία, επίσης, αναλύθηκε το πληθυσμιακό και οικονομικό προφίλ των Ρωμιών της Κωνσταντινούπολης και της Σμύρνης, αλλά και γεγονότα τα οποία συνέβαλαν στην εξέλιξη της πολιτικής των Νεότουρκων κατά του ρωμαίικου στοιχείου.
description: The purpose of this thesis was to study the policy pursued towards the Ottoman Greeks of Constantinople and Smyrna during the First Persecution and in particular in the period between 1913-1914. In addition, it was examined how the official Ottoman Greek institutions of the two cities reacted against the persecution of their fellow citizens who were suffering from acts of violence, particularly in rural areas. More specifically, the focus was placed on the reaction of the Ecumenical Patriarchate of Constantinople and the Metropolis of Smyrna, the actions of the Ottoman Greeks Parliamentarians and the response of the Greek state. As far as the Greek state is concerned, there is a detailed description of the effort to exchange populations between Greece and the Ottoman Empire in 1914. The paper also presented the population and the economic profile of the Ottoman Greeks of Constantinople and Smyrna, as well as the events which contributed to the development of the Young Turks policy against the Ottoman Greek inhabitants
Evidence suggests that SARS-CoV-2 rapid antigen tests provide benefits for epidemic control -- observations from Austrian schools
Creators: name: Polechová, Jitka
name: Johnson, Kory D.
name: Payne, Pavel
name: Crozier, Alex
name: Beiglböck, Mathias
name: Plevka, Pavel
name: Schernhammer, Eva
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Rapid antigen tests detect proteins at the surface of virus particles, identifying the disease during its infectious phase. In contrast, PCR tests detect viral genomes; they can thus diagnose COVID-19 before the infectious phase but also react to remnants of the virus genome, even weeks after live virus ceases to be detectable in the respiratory tract. Furthermore, the logistics for administering the tests are different, with rapid antigen tests being much easier to administer at-scale. In this article, we discuss the relative advantages of the different testing procedures and summarise evidence that shows that using antigen tests 2-3 times per week could become a powerful tool to suppress the COVID-19 pandemic. We also discuss the results of recent large-scale rapid antigen testing in Austrian schools. While our report on testing predates Delta, we have updated the review with recent data on viral loads in breakthrough infections and more information about testing efficacy, especially in children.
description: We have updated the article with recent data on viral loads in breakthrough infections and more information about testing efficacy, especially in children