cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dissipation-enhanced collapse singularity of a nonlocal fluid of light in a hot atomic vapor
Creators: name: Azam, Pierre
name: Fusaro, Adrien
name: Fontaine, Quentin
name: Garnier, Josselin
name: Bramati, Alberto
name: Picozzi, Antonio
name: Kaiser, Robin
name: Glorieux, Quentin
name: Bienaimé, Tom
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the out-of-equilibrium dynamics of a two-dimensional paraxial fluid of light using a near-resonant laser propagating through a hot atomic vapor. We observe a double shock-collapse instability: a shock (gradient catastrophe) for the velocity, as well as an annular (ring-shaped) collapse singularity for the density. We find experimental evidence that this instability results from the combined effect of the nonlocal photon-photon interaction and the linear photon losses. The theoretical analysis based on the method of characteristics reveals the main counterintuitive result that dissipation (photon losses) is responsible for an unexpected enhancement of the collapse instability. Detailed analytical modeling makes it possible to evaluate the nonlocality range of the interaction. The nonlocality is controlled by adjusting the atomic vapor temperature and is seen to increase dramatically when the atomic density becomes much larger than one atom per cubic wavelength. Interestingly, such a large range of the nonlocal photon-photon interaction has not been observed in an atomic vapor so far and its microscopic origin is currently unknown.
description: 8 pages, 6 figures
The Lawnmower: an autonomous, protein-based artificial molecular motor
Creators: name: Korosec, Chapin S.
name: Unksov, Ivan
name: Surendiran, Pradheebha
name: Lyttleton, Roman
name: Curmi, Paul M. G.
name: Angstmann, Christopher N.
name: Eichhorn, Ralf
name: Linke, Heiner
name: Forde, Nancy R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: Inspired by biology, great progress has been made in creating artificial molecular motors. However, the dream of harnessing proteins - the building blocks selected by Nature - to design autonomous motors has so far remained elusive. Here we report the synthesis and characterization of the Lawnmower, an autonomous, protein-based artificial molecular motor comprised of a spherical hub decorated with proteases. Its "burnt-bridge" motion is directed by cleavage of a peptide lawn, promoting motion towards unvisited substrate. We find that Lawnmowers exhibit directional motion with average speeds of up to 80 nm/s, comparable to biological motors. By selectively patterning the peptide lawn on microfabricated tracks, we furthermore show that the Lawnmower is capable of track-guided motion. Our work opens an avenue towards nanotechnology applications of artificial protein motors.
An improved condition for a graph to be determined by its generalized spectrum
Creators: name: Wang, Wei
name: Wang, Wei
name: Zhu, Fuhai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50

description: A fundamental and challenging problem in spectral graph theory is to characterize which graphs are uniquely determined by their spectra. In Wang [J. Combin. Theory, Ser. B, 122 (2017): 438-451], the author proved that an $n$-vertex graph $G$ is uniquely determined by its generalized spectrum (DGS) whenever $2^{-\lfloor\frac{n}{2}\rfloor}\det W$ is odd and square-free. Here, $W$ is the walk matrix of $G$, namely, $W=[e,Ae,\ldots,A^{n-1}e]$ with $e$ all-one vector and $A$ the adjacency matrix of $G$. In this paper, we focus on a larger family of graphs with $d_n$ square-free, where $d_n$ refers to the last invariant factor of $W$. We introduce a new kind of polynomials for a graph $G$ associated with a prime $p$. Such a polynomial is invariant under generalized cospectrality. Using the newly defined polynomials, we obtain a sufficient condition for a graph in the larger family to be DGS. The main result of this paper improves upon the aforementioned result of Wang while the proof for the main result gives a new way to attack the problem of generalized spectral characterization of graphs.
description: 14 pages
Targeting Bright Metal-poor Stars in the Disk and Halo Systems of the Galaxy
Creators: name: Limberg, Guilherme
name: Santucci, Rafael M.
name: Rossi, Silvia
name: Shank, Derek
name: Placco, Vinicius M.
name: Beers, Timothy C.
name: Schlaufman, Kevin C.
name: Casey, Andrew R.
name: Perottoni, Hélio D.
name: Lee, Young Sun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the results of spectroscopic follow-up for 1897 low-metallicity star candidates, selected from the Best & Brightest (B&B) Survey, carried out with the GMOS-N/S (Gemini North/South telescopes) and Goodman (SOAR Telescope) spectrographs. From these low-resolution ($R \sim 2000$) spectra, we estimate stellar atmospheric parameters, as well as carbon and magnesium (representative of $α$ elements) abundance ratios. We confirm that $56\%$ of our program stars are metal-poor ([Fe/H] $< -1.0$), $30\%$ are very metal-poor (VMP; [Fe/H] $< -2.0$) and $2\%$ are extremely metal-poor (EMP; [Fe/H] $< -3.0$). There are 191 carbon-enhanced metal-poor (CEMP) stars, resulting in CEMP fractions of $19\%$ and $43\%$ for the VMP and EMP regimes, respectively. A total of 94 confirmed CEMP stars belong to Group I ($A({\rm C}) \gtrsim 7.25$) and 97 to Group II ($A({\rm C}) \lesssim 7.25$) in the Yoon-Beers $A$(C)$-$[Fe/H] diagram. Moreover, we combine these data with Gaia EDR3 astrometric information to delineate new target-selection criteria, which have been applied to the Goodman/SOAR candidates, to more than double the efficiency for identification of bona-fide VMP and EMP stars in comparison to random draws from the B&B catalog. We demonstrate that this target-selection approach can achieve success rates of $96\%$, $76\%$, $28\%$ and $4\%$ for [Fe/H] $\leq -1.5$, $\leq -2.0$, $\leq -2.5$ and $\leq -3.0$, respectively. Finally, we investigate the presence of dynamically interesting stars in our sample. We find that several VMP/EMP ([Fe/H] $\leq -2.5$) stars can be associated with either the disk system or halo substructures like Gaia-Sausage/Enceladus and Sequoia.
description: Accepted for ApJ. Long tables at the end of the manuscript. Minor typos fixed and references updated to match the published version
Galois cohomology and component group of a real reductive group
Creators: name: Borovoi, Mikhail
name: Timashev, Dmitry A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Group Theory (math.GR)
subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary: 11E72, 20G10, 20G20

description: Let G be a connected reductive group over the field of real numbers R. Using results of our previous joint paper, we compute combinatorially the first Galois cohomology set H^1(R,G) in terms of reductive Kac labelings. Moreover, we compute the group of connected components π_0 G(R) of the real Lie group G(R) and the maps in exact sequences containing π_0 G(R) and H^1(R,G).
description: V.1: 35 pages, v.2: 41 pages, v.3 41 pages
Avaddon ransomware: an in-depth analysis and decryption of infected systems
Creators: name: Yuste, Javier
name: Pastrana, Sergio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The commoditization of Malware-as-a-Service (MaaS) allows criminals to obtain financial benefits at a low risk and with little technical background. One such popular product in the underground economy is ransomware. In ransomware attacks, data from infected systems is held hostage (encrypted) until a fee is paid to the criminals. This modus operandi disrupts legitimate businesses, which may become unavailable until the data is restored. A recent blackmailing strategy adopted by criminals is to leak data online from the infected systems if the ransom is not paid. Besides reputational damage, data leakage might produce further economical losses due to fines imposed by data protection laws. Thus, research on prevention and recovery measures to mitigate the impact of such attacks is needed to adapt existing countermeasures to new strains. In this work, we perform an in-depth analysis of Avaddon, a ransomware offered in the underground economy as an affiliate program business. This has infected and leaked data from at least 23 organizations. Additionally, it runs Distributed Denial-of-Service (DDoS) attacks against victims that do not pay the ransom. We first provide an analysis of the criminal business model from the underground economy. Then, we identify and describe its technical capabilities. We provide empirical evidence of links between this variant and a previous family, suggesting that the same group was behind the development and, possibly, the operation of both campaigns. Finally, we describe a method to decrypt files encrypted with Avaddon in real time. We implement and test the decryptor in a tool that can recover the encrypted data from an infected system, thus mitigating the damage caused by the ransomware. The tool is released open-source so it can be incorporated in existing Antivirus engines.
Gauge Theories on A(dS) space and Killing Vectors
Creators: name: Banerjee, Rabin
name: Majhi, Bibhas Ranjan
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We provide a general technique for collectively analysing a manifestly covariant formulation of non-abelian gauge theories on both anti de Sitter as well as de Sitter spaces. This is done by stereographically projecting the corresponding theories, defined on a flat Minkowski space, onto the surface of the A(dS) hyperboloid. The gauge and matter fields in the two descriptions are mapped by conformal Killing vectors and conformal Killing spinors, respectively. A bilinear map connecting the spinors with the vector is established. Different forms of gauge fixing conditions and their equivalence are discussed. The U(1) axial anomaly as well as the non-abelian covariant and consistent chiral anomalies on A(dS) space are obtained. Electric-magnetic duality is demonstrated. The zero curvature limit is shown to yield consistent findings.
description: previous version is expanded, 50 pages, no figures, to appear in Ann. Phys
Transient Polarization and Dendrite Initiation Dynamics in Ceramic Electrolytes
Creators: name: Gopal, Rajeev
name: Wu, Longan
name: Lee, Youngju
name: Guo, Jinzhao
name: Bai, Peng
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Solid-state electrolytes, by enabling lithium metal anodes, may significantly increase the energy density of current lithium-ion batteries. However, similar to their liquid counterparts, these hard and stiff electrolytes can still be penetrated by soft Li metal, above a critical current density (CCD). The prevailing method to determine the CCD employs step-wise galvanostatic cycling, which suffers from inconsistent active interfacial areas due to void formations after repeated stripping and plating, leaving large variance in the reported data that preclude precision understandings. Here, we combine a one-way polarization technique with electrochemical impedance spectroscopy to uncover, for the first time, the existence of significant polarization dynamics in ceramic electrolytes. In contrast to the diverging transient current due to metal penetration, the current peaks we observed suggest a diffusion-limited mechanism that follows the classic Randles-Sevcik equation for analyzing the diffusion-limited processes in liquid electrolytes. Our results allow a rigorous self-consistent analysis to reveal that the CCD is a diffusion-limited current density, while the system-specific limiting current density for ceramic electrolytes is still lower than CCD, which suggests that the ion transport mechanism preceding the dendrite penetration in ceramic electrolytes is unifiable with that in liquid electrolytes.
description: 32 papges, 6 figures
Long Lived Charged Massive Particles and Big Bang Nucleosynthesis
Creators: name: Kohri, Kazunori
name: Takayama, Fumihiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider Big Bang Nucleosynthesis(BBN) with long lived charged massive particles. Before decaying, the long lived massive particles recombines with a light element to form a bound state like a hydrogen atom. We discuss the possible change of primordial light element abundances due to formations of such bound states.
description: 4 pages,1 figure,typos corrected and references added
De-singularizing the extremal GMGHS black hole via higher derivatives corrections
Creators: name: Herdeiro, Carlos
name: Radu, Eugen
name: Uzawa, Kunihito
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Gibbons-Maeda-Garfinkle-Horowitz-Strominger (GMGHS) black hole is an influential solution of the low energy heterotic string theory. As it is well known, it presents a singular extremal limit. We construct a regular extension of the GMGHS extremal black hole in a model with $\mathcal{O}(α')$ corrections in the action, by solving the fully non-linear equations of motion. The de-singularization is supported by the $\mathcal{O}(α')$-terms. The regularised extremal GMGHS BHs are asymptotically flat, possess a regular (non-zero size) horizon of spherical topology, with an $AdS_2\times S^2$ near horizon geometry, and their entropy is proportional to the electric charge. The near horizon solution is obtained analytically and some illustrative bulk solutions are constructed numerically.
description: 14 pages, 3 figures, Journal version
Windmill Car Conversations
Creators: name: Hammond, Jon
name: Hernandez, Betty
name: Hicks, Lucille
name: Grant, Laura
name: Turner, Julie
name: Everson, Merlene
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: xaw

description: This recording contains everyday discussions and conversations between the speakers, as well as occasional comments and side conversations about things they pass while driving along the road.
Weltausstellung (Crystal Palace) in London 1851.
Schilderung der Ausstellung, im speziellen ihrer Atmosphäre, unter dem Titel "Leben in der Ausstellung" und Zusammenfassungen zu folgenden Themen: Schiffsdampfmaschinen, optische Instrumente, meteorologische und einige physikalische Instrumente, Uhren, astronomische Instrumente, verfasst von Joseph Wolfgang von Deschwanden (1819-1866)
Creators: name: Deschwanden, Joseph Wolfgang von
Publisher: name: [s.n.]
Year: 1851

description: Handschriftliche Schilderungen in Reinschrift, im einzelnen:
- "Notizen über das Leben in der Ausstellung" (10 Bl.).
- Schiffdampfmaschinen (6 Bl.).
- Optische Instrumente, u.a. mit dem Untertitel "Mikroskope" (6 Bl.).
- Meteorologische und einige andere physikalische Instrumente (16 Bl.).
- Uhren, mit dem ersten Untertitel "Verbesserungen an den bekannten Uhren" (14 Bl.).
- Astronomische Instrumente (14 Bl.).
Im Rahmen der Digitalisierung wurden die Unterlagen der urspr. Einheit 213 überprüft, inhaltlich bestimmt und besser verpackt sowie in mehrere Einheiten unterteilt
$k$-symmetric AKS systems and flat immersions in spheres
Creators: name: Brander, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Differential Geometry (math.DG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 53C42; 37J35; 53C35

description: We define a large class of integrable nonlinear PDE's, \emph{$k$-symmetric AKS systems}, whose solutions evolve on finite dimensional subalgebras of loop algebras, and linearize on an associated algebraic curve. We prove that periodicity of the associated algebraic data implies a type of quasiperiodicity for the solution, and show that the problem of isometrically immersing $n$-dimensional Euclidean space into a sphere of dimension $2n-1$ can be addressed via this scheme, producing infinitely many real analytic solutions.
description: 21 pages. Minor typographical corrections
Schlüssel zu der Grossen Industrie-Ausstellung 1851, von E. Heine.
Gedruckter Hauptplan zur Weltausstellung (Crystal Palace) in London 1851, mit dem Nachweis von Gegenständen von allgemeinem Interesse, aufbewahrt im Nachlass von Joseph Wolfgang von Deschwanden (1819-1866)
Creators: name: Heine, E.
Publisher: name: [s.n.]
Year: 1851

description: Einblattdruck. Ein Text links oben über Nachmeldungen verweist darauf, dass E. Heine diese Auflage mind. vier Wochen nach Eröffnung gedruckt hatte.
Deutschsprachiger Plan zur Orientierung in der Ausstellung, gefaltet, 48 x 98 cm.
Im Rahmen der Digitalisierung wurden die Unterlagen der urspr. Einheit 213 überprüft, inhaltlich bestimmt und besser verpackt sowie in mehrere Einheiten unterteilt
Privacy Protection, Measurement Error, and the Integration of Remote Sensing and Socioeconomic Survey Data
Creators: name: Michler, Jeffrey D.
name: Josephson, Anna
name: Kilic, Talip
name: Murray, Siobhan
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Economics (econ.GN)
subject: FOS: Economics and business

description: When publishing socioeconomic survey data, survey programs implement a variety of statistical methods designed to preserve privacy but which come at the cost of distorting the data. We explore the extent to which spatial anonymization methods to preserve privacy in the large-scale surveys supported by the World Bank Living Standards Measurement Study - Integrated Surveys on Agriculture (LSMS-ISA) introduce measurement error in econometric estimates when that survey data is integrated with remote sensing weather data. Guided by a pre-analysis plan, we produce 90 linked weather-household datasets that vary by the spatial anonymization method and the remote sensing weather product. By varying the data along with the econometric model we quantify the magnitude and significance of measurement error coming from the loss of accuracy that results from protect privacy measures. We find that spatial anonymization techniques currently in general use have, on average, limited to no impact on estimates of the relationship between weather and agricultural productivity. However, the degree to which spatial anonymization introduces mismeasurement is a function of which remote sensing weather product is used in the analysis. We conclude that care must be taken in choosing a remote sensing weather product when looking to integrate it with publicly available survey data.
The Orbifolds of Permutation-Type as Physical String Systems at Multiples of c=26 II. The Twisted BRST Systems of \hatc=52 Matter
Creators: name: Halpern, M. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: This is the second in a series of papers which consider the orbifolds of permutation-type as candidates for new physical string systems at higher central charge. In the first paper, I worked out the extended actions of the twisted sectors of these orbifolds -- which exhibit new permutation-twisted world-sheet gravities and correspondingly extended diffeomorphism groups. In this paper I begin the study of these systems as operator string theories, limiting the discussion for simplicity to the strings with ${\hat c} = 52$ matter (which are those governed by ${\mathbb Z}_2$-twisted permutation gravity). In particular, I present here a construction of the twisted reparametrization ghosts and {\em new twisted BRST systems} of all ${\hat c} = 52$ strings. The twisted BRST systems also imply new {\em extended physical state conditions}, whose analysis for individual ${\hat c} = 52$ strings is deferred to the next paper of the series.
description: 21 pages, reference added and typos corrected
Theory for heating of metals assisted by Surface Plasmon Polaritons
Creators: name: Benhayoun, Othmane
name: Terekhin, P. N.
name: Ivanov, Dmitry
name: Rethfeld, Bärbel
name: Garcia, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We propose a model accounting for plasmons within a two temperature description, to investigate the role of surface plasmon polaritons (SPP) in the energy redistribution between laser excited electrons and the lattice, leading to surface restructuring of the material. This energy transfer can lead to the creation of laser induced surface structures in metals illuminated by an ultrashort laser pulse. The Two Temperature Model + Plasmon (TTM+P) equations are constructed by applying perturbation theory on the energy-, momentum- and density conservation equations of free electrons in metals. We consider three subsystems: the lattice, the thermalized electrons and the SPP, subject to an external laser field irradiation. The interference between the laser and SPP fields leads to spatially modulated energy absorption by the electronic system, and, through electron-phonon collisions, periodically shapes the lattice temperature. A numerical analysis is performed on a 1D model for gold. We show the emergence of a periodic modulation of the lattice temperature, which may contribute to laser induced periodic surface structures (LIPSS).
description: 23 pages, 5 figures
1 Brief an H[ans] G[eorg] Nägeli
Brief an Nägeli ...
Creators: name: Schnyder von Wartensee, Franz Xaver
Publisher: name: [s.n.]
Year: 1817

description: von [Franz] X[aver] Schnyder [von Wartensee]
description: Abschrift von Hermann Nägeli; Originalbrief in Ms V 455.2.10
Class-wise Classifier Design Capable of Continual Learning using Adaptive Resonance Theory-based Topological Clustering
Creators: name: Masuyama, Naoki
name: Nojima, Yusuke
name: Dawood, Farhan
name: Liu, Zongying
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper proposes a supervised classification algorithm capable of continual learning by utilizing an Adaptive Resonance Theory (ART)-based growing self-organizing clustering algorithm. The ART-based clustering algorithm is theoretically capable of continual learning, and the proposed algorithm independently applies it to each class of training data for generating classifiers. Whenever an additional training data set from a new class is given, a new ART-based clustering will be defined in a different learning space. Thanks to the above-mentioned features, the proposed algorithm realizes continual learning capability. Simulation experiments showed that the proposed algorithm has superior classification performance compared with state-of-the-art clustering-based classification algorithms capable of continual learning.
description: This paper is currently under review. arXiv admin note: substantial text overlap with arXiv:2201.10713
Repeatable patterns and the maximum multiplicity of a generator in a reduced word
Creators: name: Gaetz, Christian
name: Gao, Yibo
name: Jiradilok, Pakawut
name: Nenashev, Gleb
name: Postnikov, Alexander
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We study the maximum multiplicity $\mathcal{M}(k,n)$ of a simple transposition $s_k=(k \: k+1)$ in a reduced word for the longest permutation $w_0=n \: n-1 \: \cdots \: 2 \: 1$, a problem closely related to much previous work on sorting networks and on the "$k$-set" problem. After reinterpreting the problem in terms of monotone weakly separated paths, we show that, for fixed $k$ and sufficiently large $n$, the optimal density is realized by paths which are periodic in a precise sense, so that \[ \mathcal{M}(k,n)=c_k n + p_k(n) \] for a periodic function $p_k$ and constant $c_k$. In fact we show that $c_k$ is always rational, and compute several bounds and exact values for this quantity with "repeatable patterns", which we introduce.
description: 30 pages; to appear in Combinatorial Theory
Eccentricity content of binary black hole initial data
Creators: name: Berti, Emanuele
name: Iyer, Sai
name: Will, Clifford M.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using a post-Newtonian diagnostic tool developed by Mora and Will, we examine numerically generated quasiequilibrium initial data sets that have been used in recently successful numerical evolutions of binary black holes through plunge, merger and ringdown. We show that a small but significant orbital eccentricity is required to match post-Newtonian and quasiequilibrium calculations. If this proves to be a real eccentricity, it could affect the fine details of the subsequent numerical evolutions and the predicted gravitational waveforms.
description: 5 pages, 5 figures, clarifications and minor corrections; version submitted to Phys. Rev. D
Gauge and Yukawa couplings in 6D supersymmetric SU(6) models
Creators: name: Uekusa, Nobuhiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study six-dimensional (6D) SU(6) supersymmetric models where the doublet-triplet splitting, quark-lepton mass relations and gaugino-mediated supersymmetry breaking are taken into account. We find that effective 4D gauge coupling constants have highly nontrivial behavior between two compactification scales. It is shown that realistic patterns of Yukawa coupling constants are obtained for valid values of parameters and that hierarchical numbers are generated via suppression by extra-dimensional effects.
description: 56 pages, 5 figures
A Benchmarks Library for Extended Parametric Timed Automata
Creators: name: André, Étienne
name: Marinho, Dylan
name: van de Pol, Jaco
Publisher: name: arXiv
Year: 2021
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Parametric timed automata are a powerful formalism for reasoning on concurrent real-time systems with unknown or uncertain timing constants. In order to test the efficiency of new algorithms, a fair set of benchmarks is required. We present an extension of the IMITATOR benchmarks library, that accumulated over the years a number of case studies from academic and industrial contexts. We extend here the library with several dozens of new benchmarks; these benchmarks highlight several new features: liveness properties, extensions of (parametric) timed automata (including stopwatches or multi-rate clocks), and unsolvable toy benchmarks. These latter additions help to emphasize the limits of state-of-the-art parameter synthesis techniques, with the hope to develop new dedicated algorithms in the future.
description: This is the author (and extended) version of the manuscript of the same name published in the proceedings of the 15th International Conference on Tests and Proofs (TAP 2021)
Reference Vector Adaptation and Mating Selection Strategy via Adaptive Resonance Theory-based Clustering for Many-objective Optimization
Creators: name: Kinoshita, Takato
name: Masuyama, Naoki
name: Liu, Yiping
name: Nojima, Yusuke
name: Ishibuchi, Hisao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Decomposition-based multiobjective evolutionary algorithms (MOEAs) with clustering-based reference vector adaptation show good optimization performance for many-objective optimization problems (MaOPs). Especially, algorithms that employ a clustering algorithm with a topological structure (i.e., a network composed of nodes and edges) show superior optimization performance to other MOEAs for MaOPs with irregular Pareto optimal fronts (PFs). These algorithms, however, do not effectively utilize information of the topological structure in the search process. Moreover, the clustering algorithms typically used in conventional studies have limited clustering performance, inhibiting the ability to extract useful information for the search process. This paper proposes an adaptive reference vector-guided evolutionary algorithm using an adaptive resonance theory-based clustering with a topological structure. The proposed algorithm utilizes the information of the topological structure not only for reference vector adaptation but also for mating selection. The proposed algorithm is compared with 8 state-of-the-art MOEAs on 78 test problems. Experimental results reveal the outstanding optimization performance of the proposed algorithm over the others on MaOPs with various properties.
description: This paper is currently under review
Meditationen über die Jungfrau Maria und die Geburt Christi (Fragment)
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1460

description: Öffentliche Bibliothek der Universität Basel
description: Deutsch (Alemannisch)
description: Der Faszikel wurde 1993 aus ungeordneten Fragmenten in den Bestand der Universitätsbibliothek einsigniert. Die Provenienz ist unbekannt, doch gibt es Hinweise auf eine mögliche Herkunft aus dem Basler Dominikanerinnenkloster St. Maria Magdalena in den Steinen: Stärkstes Indiz ist das Papier, das wahrscheinlich mit demjenigen übereinstimmt, das in der im Steinenkloster entstandenen Handschrift Mariastein, Benediktinerkloster, S 353 verwendet wurde. Die Schreibhand konnte bisher in keiner der nachweislich im Steinenkloster geschriebenen Handschriften (neben dem Codex aus Mariastein auch Basel, UB, A VIII 36) nachgewiesen werden, doch passen Schrifttypus und Format zu den anderen bekannten Handschriften aus diesem Kloster. Die Schreibsprache ist auf jeden Fall alemannisch, das Papier weist auf eine Entstehung möglicherweise in Basel in den 1460er Jahren hin.
description: Verzeichnung=Description=Inventaire Dez. 2009 HAN-Katalogisierungsregeln Titel, Jahr und Signatur nach: Steinmann, unpublizierte Beschreibung
description: Verzeichnung=Description=Inventaire Dez. 2009 Rekatalogisiert nach: Steinmann (1993)
description: Verzeichnung=Description=Inventaire Februar 2025 HAN-Katalogisierungsregeln Normalaufnahme nach: Steinmann (1993), mit Ergänzungen Studer
description: Digitalisierung=Digitization=Numérisation Februar 2025 TIFF
description: Erschliessungsniveau Normalniveau
Log to log-log crossover of entanglement in $(1+1)-$ dimensional massive scalar field
Creators: name: Jain, Parul
name: Chandran, S. Mahesh
name: Shankaranarayanan, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study three different measures of quantum correlations -- entanglement spectrum, entanglement entropy, and logarithmic negativity -- for (1+1)-dimensional massive scalar field in flat spacetime. The entanglement spectrum for the discretized scalar field in the ground state indicates a cross-over in the zero-mode regime, which is further substantiated by an analytical treatment of both entanglement entropy and logarithmic negativity. The exact nature of this cross-over depends on the boundary conditions used -- the leading order term switches from a $\log$ to $\log-\log$ behavior for the Periodic and Neumann boundary conditions. In contrast, for Dirichlet, it is the parameters within the leading $\log-\log$ term that are switched. We show that this cross-over manifests as a change in the behavior of the leading order divergent term for entanglement entropy and logarithmic negativity close to the zero-mode limit. We thus show that the two regimes have fundamentally different information content. Furthermore, an analysis of the ground state fidelity shows us that the region between critical point $Λ=0$ and the crossover point is dominated by zero-mode effects, featuring an explicit dependence on the IR cutoff of the system. For the reduced state of a single oscillator, we show that this cross-over occurs in the region $Nam_f\sim \mathscr{O}(1)$.
description: Version 2: 30 pages, 6 figures, 2 tables. One new section on ground state fidelity added. Conclusions unchanged. Version accepted in Phy. Rev. D
Fluid-crystal coexistence for proteins and inorganic nanocolloids: dependence on ionic strength
Creators: name: Prinsen, Peter
name: Odijk, Theo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We investigate theoretically the fluid-crystal coexistence of solutions of globular charged nanoparticles like proteins and inorganic colloids. The thermodynamic properties of the fluid phase are computed via the optimized Baxter model. This is done specifically for lysozyme and silicotungstates for which the bare adhesion parameters are evaluated via the experimental second virial coefficients. The electrostatic free energy of the crystal is approximated by supposing the cavities in the interstitial phase between the particles are spherical in form. In the salt-free case a Poisson-Boltzmann equation is solved to calculate the effective charge on a particle and a Donnan approximation is used to derive the chemical potential and osmotic pressure in the presence of salt. The coexistence data of lysozyme and silicotungstates are analyzed within this scheme, especially with regard to the ionic-strength dependence of the chemical potentials. The latter agree within the two phases provided some upward adjustment of the effective charge is allowed for.
description: 15 pages, 9 figures
Classification of the characteristics of two mango cultivars harvested at different stages of maturity using gas chromatography and sensory data
Creators: name: Vodovotz, Yael
Publisher: name: University of British Columbia
Year: 2008

description: The classification of the characteristics of two Mexican mango varieties (Tommy Atkins and Haden) ripened under two conditions (in cold storage and on the tree) was attempted using several multivariate analysis techniques. The aroma of the different mango purees was analyzed using both capillary gas chromatography and sensory analysis. A new portable gas chromatograph (SRI model 8610, Torrance, CA) equipped with a purge and trap was used and the area count of relevant peaks calculated. These results and those obtained from a sensory panel comprised the classification factors. In addition, parameters such as the Magness Taylor pressure values, pH and acid/sugar ratio were determined. Two familiar classification techniques namely Principal Component Analysis (PCA) and Linear Discriminant Analysis (LDA) were used as well as a new program developed in our laboratory: PCA- Similarity (PCA-SIM). Results showed that differences exist between varieties as well as ripening conditions when analyzed both by GC and sensory techniques. Distinct groups were formed when the results of these techniques were independently subjected to LDA and PCA-SIM. PCA was more successful as a variable reduction technique than a classification method. Although both GC and sensory methods were successful in characterizing the differences between the groups, one could not replace the other since no correlation was found between the two methods. The other physico/chemical parameters were useful, but only to a limited extent, and none could account for both differences between varieties and ripening conditions.
Electronic structure and optical properties of lightweight metal hydrides
Creators: name: van Setten, M. J.
name: Popa, V. A.
name: de Wijs, G. A.
name: Brocks, G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study the electronic structures and dielectric functions of the simple hydrides LiH, NaH, MgH2 and AlH3, and the complex hydrides Li3AlH6, Na3AlH6, LiAlH4, NaAlH4 and Mg(AlH4)2, using first principles density functional theory and GW calculations. All these compounds are large gap insulators with GW single particle band gaps varying from 3.5 eV in AlH3 to 6.5 eV in the MAlH4 compounds. The valence bands are dominated by the hydrogen atoms, whereas the conduction bands have mixed contributions from the hydrogens and the metal cations. The electronic structure of the aluminium compounds is determined mainly by aluminium hydride complexes and their mutual interactions. Despite considerable differences between the band structures and the band gaps of the various compounds, their optical responses are qualitatively similar. In most of the spectra the optical absorption rises sharply above 6 eV and has a strong peak around 8 eV. The quantitative differences in the optical spectra are interpreted in terms of the structure and the electronic structure of the compounds.
description: 13 pages, 10 figures
Weatherwax Ranch
Creators: name: Girado, Luther
name: Hammond, Jon
name: Hernandez, Betty
name: Hicks, Lucille
name: Grant, Laura
name: Turner, Julie
name: Durham, Kim
name: Everson, Merlene
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: xaw

description: This recording continues the earlier discussion and recollection of childhood events on Weatherwax Ranch. One of the speakers spends extended time talking about the day she was born and the home where she was born.
Betti numbers and the curvature operator of the second kind
Creators: name: Nienhaus, Jan
name: Petersen, Peter
name: Wink, Matthias
Publisher: name: arXiv
Year: 2022
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53B20, 53C20, 53C21, 58A14

description: We show that compact, $n$-dimensional Riemannian manifolds with $\frac{n+2}{2}$-nonnegative curvature operators of the second kind are either rational homology spheres or flat. More generally, we obtain vanishing of the $p$-th Betti number provided that the curvature operator of the second kind is $C(p,n)$-positive. Our curvature conditions become weaker as $p$ increases. For $p=\frac{n}{2}$ we have $C(p,n)= \frac{3n}{2} \frac{n+2}{n+4} $, and for $5 \leq p \leq \frac{n}{2}$ we exhibit a $C(p,n)$-positive algebraic curvature operator of the second kind with negative Ricci curvatures.
description: 24 pages, improved weight principle
title: Riflessioni sull’adozione dell’arbitrato e della mediazione nella risoluzione dei conflitti per la quantificazione del danno per infrazione degli artt. 101 o 102 del TFUE
Creators: name: Massolo, Alessandro
Publisher: name: Edizioni Ca' Foscari - Digital Publishing
Year: 2014

description: Ricerche giuridiche, 2 | 2 | 2013
Geometric properties of quasiconformal maps
Creators: name: Vuorinen, Matti
Publisher: name: arXiv
Year: 2007
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C65

description: Our goal is to provide a survey of some topics in quasiconformal analysis of current interest. We try to emphasize ideas and leave proofs and technicalities aside. Several easily stated open problems are given. Most of the results are joint work with several coauthors.
description: 42 pages, 20 figues
A model independent approach to the study of $f(R)$ cosmologies with expansion histories close to $Λ$CDM
Creators: name: Chakraborty, Saikat
name: MacDevette, Kelly
name: Dunsby, Peter
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: We propose a new framework for studying the cosmology of $f(R)$ gravity which completely avoids using the reconstruction programme. This allows us to easily obtain a qualitative feel of how much the $Λ$CDM model differs from other $f(R)$ theories of gravity at the level of linear perturbation theory for theories that share the same background dynamics. This is achieved by using the standard model independent cosmographic parameters to develop a new dynamical system formulation of $f(R)$ gravity which is free from the limitation of having to first specify the functional form of $f(R)$. By considering a set of representative trajectories, which are indistinguishable from $Λ$CDM, we use purely qualitative arguments to determine the extent to which these models deviate from the standard model by including an analysis of the linear growth rate of density fluctuations and also whether or not they suffer from the Dolgov-Kawasaki instability. We find that if one demands that a late time $f(R)$ cosmology is observationally close to the $Λ$CDM model, there is a higher risk that it suffers from a Dolgov-Kawasaki instability. Conversely, the more one tries to construct a physically viable late time $f(R)$ cosmology, the more likely it is observationally different from the $Λ$CDM model.
description: 11 pages, 4 figures, figures improved, conclusion section modified
1 Brief an [Hans Georg Nägeli]
Brief an Nägeli ...
Creators: name: Schnyder von Wartensee, Franz Xaver
Publisher: name: [s.n.]
Year: 1811

description: von N.N. [Franz Xaver Schnyder von Wartensee]
description: Unvollständige Abschrift dieses Briefs in Ms Car. XV 192.24.176
Generating cosmological perturbations in non-singular Horndeski cosmologies
Creators: name: Ageeva, Y.
name: Petrov, P.
name: Rubakov, V.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct a concrete model of Horndeski bounce with strong gravity in the past. Within this model we show that the correct spectra of cosmological perturbations may be generated at early contracting epoch, with mild fine-tuning ensuring that the scalar spectral tilt $n_S$ and tensor-to-scalar ratio $r$ are consistent with observations. The smallness of $r$ is governed by the smallness of the scalar sound speed. Arbitrarily small values of $r$ are forbidden in our setup because of the strong coupling in the past. Nevertheless, we show that it is possible to generate perturbations in a controllable way, i.e. in the regime where the background evolution and perturbations are legitimately described within classical field theory and weakly coupled quantum theory.
description: 51 pages, 14 figures
Haemers' conjecture: an algorithmic perspective
Creators: name: Wang, Wei
name: Wang, Wei
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C50

description: Characterizing graphs by their spectra is a fundamental and challenging problem in spectral graph theory, which has received considerable attention in recent years. A major unsolved conjecture in this area is Haemers' conjecture which states that almost all graphs are determined by their spectra. Despite many efforts, little is known about this conjecture so far. In this paper, we shall consider Haemers' conjecture from an algorithmic perspective. Based on some recent developments in the generalized spectral characterizations of graphs, we propose an algorithm to find all possible generalized cospectral mates for a given $n$-vertex graph $G$, assuming that $G$ is controllable or almost controllable. The experimental results indicate that the proposed algorithm runs surprisingly fast for most graphs with several dozen vertices. Moreover, we observe in the experiment that most graphs are determined by their generalized spectra, e.g., at least 9945 graphs are determined by their generalized spectra among all randomly generated 10,000 graphs on 50 vertices in one experiment. These experimental results give strong evidence for Haemers' conjecture.
description: 22 pages, 5 tables
THE INFLUENCE OF TRANSLATION CRITICISM ON THE DEVELOPMENT OF TRANSLATION STUDIES
Creators: name: Abdikhamidova, Sevinch
Publisher: name: Zenodo
Year: 2023

description: Translation studies` has gradually evolved into an independent field, and translation criticism plays a significant role within this field. In other words, developing a comprehensive theoretical framework for translation studies is closely tied to the examination of translation criticism. This scientific article aims to explore the different ways in which translation criticism influences the field of translation studies. It begins with the definition of translation criticism, then continues with analyzes of its steps, functions, principles, and further developments. In this article the various translation criticism approaches, and their suitability issues are also examined.
Applying FAIR to InterMine
Creators: name: Butano, Daniela
name: Clark-Casey, Justin
name: Contrino, Sergio
name: Heimbach, Josh
name: Lyne, Rachel
name: Sullivan, Julie
name: Yehudi, Yo
name: Gos Micklem
Publisher: name: F1000 Research Limited
Year: 2019

description: InterMine is a platform to integrate and access life sciences data, providing a user-friendly web interface and RESTful web services. Whilst InterMine comes with a core data model for common biological entities and loaders for popular data sources and file types, different deployments can extend these components to publish any type of data.
InterMine currently includes some FAIR principles such as search and structured query functionalities, web services, cross-references to other InterMine instances and resources, but, as an established platform - which has been maintained for over 15 years - it did not start out as FAIR. We will present our experience of the practical implementation of the FAIR principles in InterMine. We will cover topics such as the design of persistent data entity URIs, standards for embedding data descriptions into web pages, describing data with ontologies, and data licences.
Tool prediction in Galaxy workflows using deep learning
Creators: name: Anup Kumar
name: Grüning, Björn
Publisher: name: F1000 Research Limited
Year: 2019

description: Galaxy workflows are scientific data processing pipelines for performing and reproducing data analyses. The workflows are complex and difficult to create from a suite of 2,000+ tools available in Galaxy, especially for new Galaxy users. In order to make creating workflows easier, faster and less error-prone, a recommendation system was developed to predict the following tools. The predictive system analyses the complete set of workflows available on Galaxy’s European server using a deep learning approach to create a tool prediction model. Workflows are directed acyclic graphs. To create the predictive model, sequences (paths) of tools are extracted from these graphs and learned by a deep learning approach (Gated recurrent network). The hyperparameters of the deep learning model are optimised using bayesian optimisation. The usage frequency of tools is integrated into the model so that the tools which have not been used recently do not appear in the set of possible tools. This is achieved by learning the usage of each tool over time using a support vector regression (SVR) model. An API was developed to predict tools and visualize them using a user interface. It can be used in the Galaxy workflow editor (It is not yet available publicly. The API can be also used for multiple user interface integrations. Using the tool recommendation system, a user does not need to search for the tools in the toolbox to create a workflow. The possible tools are available in the “recommended tools” modal popup. The codebase is located at: https://github.com/anuprulez/similar_galaxy_workflow/tree/release_tool_recommendation_v_03_19