cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Capital allocation for credit portfolios with kernel estimators
Creators: name: Tasche, Dirk
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistics Theory (math.ST)
subject: Probability (math.PR)
subject: Risk Management (q-fin.RM)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 62G08; 62P05

description: Determining contributions by sub-portfolios or single exposures to portfolio-wide economic capital for credit risk is an important risk measurement task. Often economic capital is measured as Value-at-Risk (VaR) of the portfolio loss distribution. For many of the credit portfolio risk models used in practice, the VaR contributions then have to be estimated from Monte Carlo samples. In the context of a partly continuous loss distribution (i.e. continuous except for a positive point mass on zero), we investigate how to combine kernel estimation methods with importance sampling to achieve more efficient (i.e. less volatile) estimation of VaR contributions.
description: 22 pages, 12 tables, 1 figure, some amendments
Unsupervised Feature Learning for Writer Identification and Writer Retrieval
Creators: name: Christlein, Vincent
name: Gropp, Martin
name: Fiel, Stefan
name: Maier, Andreas
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep Convolutional Neural Networks (CNN) have shown great success in supervised classification tasks such as character classification or dating. Deep learning methods typically need a lot of annotated training data, which is not available in many scenarios. In these cases, traditional methods are often better than or equivalent to deep learning methods. In this paper, we propose a simple, yet effective, way to learn CNN activation features in an unsupervised manner. Therefore, we train a deep residual network using surrogate classes. The surrogate classes are created by clustering the training dataset, where each cluster index represents one surrogate class. The activations from the penultimate CNN layer serve as features for subsequent classification tasks. We evaluate the feature representations on two publicly available datasets. The focus lies on the ICDAR17 competition dataset on historical document writer identification (Historical-WI). We show that the activation features trained without supervision are superior to descriptors of state-of-the-art writer identification methods. Additionally, we achieve comparable results in the case of handwriting classification using the ICFHR16 competition dataset on historical Latin script types (CLaMM16).
description: ICDAR2017 camera ready (fixed p@2 values, missing table references)
Quantum Hall Effect and Langlands Program
Creators: name: Ikeda, Kazuki
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Recent advances in the Langlands program shed light on a vast area of modern mathematics from an unconventional viewpoint, including number theory, gauge theory, representation, knot theory and etc. By applying to physics, these novel perspectives endow with a unified account of the (integer/ fractional) quantum Hall effect. The plateaus of the Hall conductance are described by Hecke eigensheaves of the geometric Langlands correspondence. Especially, the particle-vortex duality, which is explained by S-duality of Chern-Simons theory, corresponds to the Langlands duality in Wilson and Hecke operators. Moreover the Langlands duality in the quantum group associated with the Hamiltonian describes fractal energy spectrum structure, know as Hofstadter's butterfly. These results suggest that the Langlands program has many physically realistic meanings.
description: 21 pages, 4 figures
Compact Nuclei in Moderately Redshifted Galaxies
Creators: name: Sarajedini, Vicki L.
name: Green, Richard F.
name: Griffiths, Richard E.
name: Ratnatunga, Kavan U.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Hubble Space Telescope WFPC2 is being used to obtain high-resolution images in the V and I bands for several thousand distant galaxies as part of the Medium Deep Survey (MDS). An important scientific aim of the MDS is to identify possible AGN candidates from these images in order to measure the faint end of the AGN luminosity function as well as to study the host galaxies of AGNs and nuclear starburst systems. We are able to identify candidate objects based on morphology. Candidates are selected by fitting bulge+disk models and bulge+disk+point source nuclei models to HST imaged galaxies and determining the best model fit to the galaxy light profile. We present results from a sample of MDS galaxies with I less than 21.5 mag that have been searched for AGN/starburst nuclei in this manner. We identify 84 candidates with unresolved nuclei in a sample of 825 galaxies. For the expected range of galaxy redshifts, all normal bulges are resolved. Most of the candidates are found in galaxies displaying exponential disks with some containing an additional bulge component. 5% of the hosts are dominated by an r^-1/4 bulge. The V-I color distribution of the nuclei is consistent with a dominant population of Seyfert-type nuclei combined with an additional population of starbursts. Our results suggest that 10% +/- 1% of field galaxies at z less than 0.6 may contain AGN/starburst nuclei that are 1 to 5 magnitudes fainter than the host galaxies.
description: 12 pages AASTeX manuscript, 3 separate Postscript figures, to be published in ApJ Letters
title: ADCO, Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Cart. 180 (11 H 755), 83 folios, f. 0162
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2017
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP

description: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 180 (11 H 755), 83 folios, f. 0162, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Chaugey et Maison-Dieu (Fin XVe siècle), Archives départementales de la Côte-d'Or, Cart. 180 (11 H 755), 83 folios, f. 0162, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
Schinus fagara Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Sapindales
Anacardiaceae
Schinus
Schinus fagara

description: Schinus fagara, spec. nov.
 4. Schinus foliis pinnatis: foliolis oblongis, petiolo marginato articulato inermi. Mat. med. 533.
 Lauro affinis, jasmini folio alato, costa media membranulis utrinque extantibus alata, ligno duritie ferro vix cedens. Sloan. jam. 137. hist.2. p.25. t.162. f.1. Raj. dendr. 86.
 Habitat in Jamaicae campestribus. ♄
 Confer Seo s. Sansio. Kaempf. amoen. 892.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 389, DOI: 10.5281/zenodo.3931989
The Rise Times and Bolometric Light Curve of SN 1994D: Constraints on Models of Type Ia Supernovae
Creators: name: Vacca, William D.
name: Leibundgut, Bruno
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Using the published photometry and an empirical model of the temporal evolution of the apparent magnitudes in the UBVRI passbands, we have constructed a continuous optical bolometric, or ``quasi-bolometric'', light curve of the well-observed Type Ia supernova SN 1994D. The optical bolometric light curve is found to have a maximum luminosity of about $8.8\times 10^{42} \times (\frac{D}{13.7 Mpc})^2$ erg/s, which is reached $\sim 18$ days after the explosion. In addition, the optical bolometric light curve exhibits an inflection, or ``shoulder'', about $25$ days after maximum. This inflection corresponds to the secondary maximum observed in all filter light curves redder than $B$. The individual filter curves have rise times similar to that of the optical bolometric light curve; other Type Ia supernovae are found to have similar rise times. Our fits indicate that the peak bolometric luminosity and the maxima in the B, V, and R light curves all occur within a day of one another. These results can be used to place constraints on theoretical models of Type Ia events. For example, all current theoretical models predict rise times to peak luminosity which are significantly shorter than that estimated for SN 1994D.
description: 12 pages, 1 color PostScript figure, special style file (aaspp4) included. Accepted for publication in Astrophysical Journal Letters. A PostScript version with embedded figure is available at http://www.ifa.hawaii.edu/~vacca
Mr & Mrs WJH Austin memories of Sulhamstead Berkshire during WW11
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Please see attached documents for recollections relating to a family's experiences of World War Two.
Influence of inversion on Mg mobility and electrochemistry in spinels
Creators: name: Gautam, Gopalakrishnan Sai
name: Canepa, Pieremanuele
name: Urban, Alexander
name: Bo, Shou-Hang
name: Ceder, Gerbrand
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnesium oxide and sulfide spinels have recently attracted interest as cathode and electrolyte materials for energy-dense Mg batteries, but their observed electrochemical performance depends strongly on synthesis conditions. Using first principles calculations and percolation theory, we explore the extent to which spinel inversion influences Mg$^{2+}$ ionic mobility in MgMn$_2$O$_4$ as a prototypical cathode, and MgIn$_2$S$_4$ as a potential solid electrolyte. We find that spinel inversion and the resulting changes of the local cation ordering give rise to both increased and decreased Mg$^{2+}$ migration barriers, along specific migration pathways, in the oxide as well as the sulfide. To quantify the impact of spinel inversion on macroscopic Mg$^{2+}$ transport, we determine the percolation thresholds in both MgMn$_2$O$_4$ and MgIn$_2$S$_4$. Furthermore, we analyze the impact of inversion on the electrochemical properties of the MgMn$_2$O$_4$ cathode via changes in the phase behavior, average Mg insertion voltages and extractable capacities, at varying degrees of inversion. Our results confirm that inversion is a major performance limiting factor of Mg spinels and that synthesis techniques or compositions that stabilize the well-ordered spinel structure are crucial for the success of Mg spinels in multivalent batteries.
Lettre de Léon Ménard à Jean-François Séguier, 1761-01-07
Creators: name: Ménard, Léon
name: Ménard, Léon
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Antiquités (général)
Epigraphie

description: [transcription] à Paris le 7 de janvier 1761.

Je vous dois bien des remerciements, Monsieur, pour toutes les peines que vous avez bien voulu prendre à l'occasion de l'année de mes gages en augmentation de gages dont je ne croyais pas avoir été payé et vous en suis infiniment obligé. M. de Caylus vient de me remettre la lettre que vous lui avez adressée pour moi et dans laquelle était ma quittance. Il m'a dit qu'il attend quelques antiques que vous lui envoyez. Sont ce des monuments du pays?

Si l'on n'a fait que blanchir mon inscription du Miles Missicius, ce n'est qu'un demi-mal parce que avec de l'eau chaude, il sera facile de lui rendre son ancien état. Mais ce que j'ai toujours particulièrement recommandé, c'est qu'on ne la dégrade point par des coups. Vous me feriez bien plaisir de renouveller cette recommendation à ceux qui occupent maintenant cette maison. Pour ce qui est de la placer ailleurs et de la donner au public, j'ai trop d'attache à ce précieux monument, ainsi que tous les autres qui se trouvent réunis dans ce jardin pour m'en dépouiller. Je ne pourrai jamais me résoudre à faire un pareil sacrifice. Mon intention serait au contraire d'en acquérir quantité d'autres et d'en faire une ample collection. Vous savez comment pensent les antiquaires et tous ceux qui ont quelque goût pour cet objet; et je crois que vous me trouverez bien excusable.

Recevez mes justes remerciements pour les souhaits concis mais énergiques, dont vous voulez bien me favoriser à l'occasion de la nouvelle année. Ceux que je fais pour vous sont les plus sincères et les plus étendus. Je vous souhaite surtout une parfaite santé, qui est selon moi le plus précieux de tous les biens. On ne peut rien ajouter aux sentiments distingués avec lesquels j'ai l'honneur d'être, Monsieur, votre très humble et très obéissant serviteur.

Ménard.
description: [personnes citées] Anne-Claude de Tubières de Grimoard de Pestels de Lévis, comte de Caylus
description: Source: [lieu de Conservation] Nîmes, Bibliothèque Carré d'Art [cote]ms. 415, fol. 73-74
Stories of love, courage and escape; Norway, England and Burma.
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: This record contains the details of the wartime experiences of John W Wilson and Sara Lolla Wilson.
Cosmic ray electrons and the diffuse gamma ray spectrum
Creators: name: Porter, T. A.
name: Protheroe, R. J.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The bulk of the diffuse galactic gamma-ray emission above a few tens of GeV has been conventionally ascribed to the decay of neutral pions produced in cosmic-ray interactions with interstellar matter. Cosmic-ray electrons may, however, make a significant contribution to the gamma-ray spectrum at high energies, and even dominate at TeV-PeV energies depending on their injection spectral index and acceleration cut-off energy. If the injection spectrum is flat, the highest energy electrons will also contribute a diffuse hard X-ray/soft gamma-ray flux via synchrotron emission, and this may offer an explanation for the OSSE observation of a steep spectrum below a few MeV from the inner Galaxy. We perform a propagation calculation for cosmic-ray electrons, and use the resulting interstellar electron spectrum to obtain the gamma-ray spectrum due to inverse Compton, synchrotron and bremsstrahlung interactions consistently from MeV to PeV energies. We compare our results with available observations from satellite-borne telescopes, optical Cherenkov telescopes and air shower arrays and place constraints on the injection spectrum of cosmic-ray electrons. With future observations at TeV-PeV energies it should be possible to determine the average interstellar spectrum of cosmic-ray electrons, and hence estimate their spectrum on acceleration.
description: 28 pages, 10 figures, major revision. Submitted to J. Phys. G: Nucl. Part. Phys
Hofstadter's Butterfly and Langlands Duality
Creators: name: Ikeda, Kazuki
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We dig out a deeper mathematical structure of the quantum Hall system from a perspective of the Langlands program. An algebraic expression of the Hamiltonian with the quantum group is a cornerstone. The Langlands duality of the quantum group sheds light on the fractal structure of Hofstadter's butterfly. This would imply a "quantum Langlands duality".
description: 9 pages, 1 figure
Schinus tragodes Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Sapindales
Anacardiaceae
Schinus
Schinus tragodes

description: Schinus tragodes, spec. nov.
5. Schinus foliis pinnatis, petiolo marginato articulato subtus aculeato.
 Schinoides petiolis subtus aculeatis. Hort. cliff. 489. *
 Rhoi obsoniorum similis leptophyllos tragodes americana spinosa, rachi medio appendicibus aucto. Pluk. alm. 319. t.107. f.4. ?
 Habitat in America . ♄
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 389, DOI: 10.5281/zenodo.3931989
Developing the 3-Point Correlation Function For the Turbulent Interstellar Medium
Creators: name: Portillo, Stephen K. N.
name: Slepian, Zachary
name: Burkhart, Blakesley
name: Kahraman, Sule
name: Finkbeiner, Douglas P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first application of the angle-dependent 3-Point Correlation Function (3PCF) to the density fields magnetohydrodynamic (MHD) turbulence simulations intended to model interstellar (ISM) turbulence. Previous work has demonstrated that the angle-averaged bispectrum, the 3PCF's Fourier-space analog, is sensitive to the sonic and Alfvénic Mach numbers of turbulence. Here we show that introducing angular information via multipole moments with respect to the triangle opening angle offers considerable additional discriminatory power on these parameters. We exploit a fast, order $N_{\rm g} \log N_{\rm g}$ ($N_{\rm g}$ the number of grid cells used for a Fourier Transform) 3PCF algorithm to study a suite of MHD turbulence simulations with 10 different combinations of sonic and Alfvénic Mach numbers over a range from sub to super-sonic and sub to super-Alfvénic. The 3PCF algorithm's speed for the first time enables full quantification of the time-variation of our signal: we study 9 timeslices for each condition, demonstrating that the 3PCF is sufficiently time-stable to be used as an ISM diagnostic. In future, applying this framework to 3-D dust maps will enable better treatment of dust as a cosmological foreground as well as reveal conditions in the ISM that shape star formation.
description: 19 pages, 16 figures; version accepted by ApJ
Norman Hopkins' Experiences 1937-1945 And Beyond
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: This record contains details, photographs and documents relating to the wartime experiences of Norm Hopkins.
Commensurability classes of 2-bridge knot complements
Creators: name: Reid, Alan W.
name: Walsh, Genevieve S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M10

description: We show that a hyperbolic 2-bridge knot complement is the unique knot complement in its commensurability class. We also discuss constructions of commensurable hyperbolic knot complements and put forth a conjecture on the number of hyperbolic knot complements in a commensurability class.
description: 20 pages; 2 figures
Dual Modal Featuring Scheme for Learning Based Android Malware Prevention
Creators: name: chen, Jiaxiong
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 460805
subject: Fairness, accountability, transparency, trust and ethics of computer systems

description: Backgroud:The prevalence and evolution of Android malware pose persistent threats to various devices. Behavioral features are vital for learning-based malware detectors. Prior studies focus on either host logs or network traffic data and their concatenation. Their deep fusion and alignment on the behavioral level are rarely explored. Aims:We propose a deep semantic alignment-based multimodal feature fusion scheme to detect Android malware. The scheme mainly includes a system-traffic graph (STG) construction algorithm, the STG2Vec model, and an attention-enhanced graph neural network(GNN) designed to handle class-imbalanced nodes. Method:The STG construction algorithm builds a novel argument-oriented host behavior feature space by modeling the semantics of system call arguments and network traffic bursts within a unified heterogeneous graph, while filtering irrelevant data for efficiency. The STG2Vec model encodes heterogeneous nodes into a shared representation space. Graph-based multimodal feature fusion is achieved through constructing a self-attention GNN model, and an incentive factor is introduced to enhance the representation of class-imbalanced nodes, ultimately enabling malware detection. Results:The experimental results show that the malware detection rate achieves 99.12\%, outperforming state-of-the-art solutions. Furthermore, 643‬ unseen malware samples can be identified by our scheme, demonstrating its feasibility for preventing evolving Android malware. Conclusions:The performance improvement indicates that our scheme can provide a novel feature space for malware analysis and a new way to align dynamic behaviors.
Novel electron-deficient oligo(phenyleneethynylene) derivatives for molecular electronics
Creators: name: Kitouni, Rachid
name: Selvanathan, Pramila
name: Galangau, Olivier
name: Norel, Lucie
name: Brahmia Ouarda
name: Rigaut, Stéphane
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: This work reports synthesis and characterizations of two new electron-poor “oligo(phenyleneethynylene) (OPE) type” molecular wires for fundamental studies of electron transport in molecular junctions. These OPE derivatives display three aromatic rings functionalized (i) with NO2 (OPN) or fluorine (OPF) groups on the central aryl core and (ii) with the requisite protected thiolate anchoring groups on the lateral rings at both ends. We show that the moderately effective Sonogashira couplings can give access to such rare electrodeficient molecules but are unfortunately associated with significant side reactions. We detail the choice of adequate reaction conditions to allow the recovery of suitable amounts of compounds bearing several strongly electron-withdrawing substituents on their central ring for further study of the physical properties.
Dynamics of Quiet Universes
Creators: name: Mutoh, Hiraku
name: Hirai, Toshinari
name: Maeda, Kei-ichi
Publisher: name: arXiv
Year: 1996
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the stability of a contracting {\it silent universe}, which is a spacetime with irrotational dust and vanishing magnetic part of the Weyl tensor, $H_{ab}=0$. Two general relativistic backgrounds are analyzed; one is an attractor of {\it silent universes}, i.e., a locally Kasner spacetime, and the other is a particular class of inhomogeneous Szekeres solutions. In both cases their stabilities against perturbations with non-zero magnetic part depend on a contraction configuration; a spindle-like collapse is unstable, while a pancake-like collapse is still stable. We also find that a similar instability exists in spindle collapse for a Newtonian case. We conclude that $H_{ab}=0$ is not a generic ansatz even in general relativistic dust collapse.
description: 21 pages, 8 eps figures
Principal component analysis and sparse polynomial chaos expansions for global sensitivity analysis and model calibration: application to urban drainage simulation
Creators: name: Nagel, Joseph B.
name: Rieckermann, Jörg
name: Sudret, Bruno
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: This paper presents an efficient surrogate modeling strategy for the uncertainty quantification and Bayesian calibration of a hydrological model. In particular, a process-based dynamical urban drainage simulator that predicts the discharge from a catchment area during a precipitation event is considered. The goal of the case study is to perform a global sensitivity analysis and to identify the unknown model parameters as well as the measurement and prediction errors. These objectives can only be achieved by cheapening the incurred computational costs, that is, lowering the number of necessary model runs. With this in mind, a regularity-exploiting metamodeling technique is proposed that enables fast uncertainty quantification. Principal component analysis is used for output dimensionality reduction and sparse polynomial chaos expansions are used for the emulation of the reduced outputs. Sobol' sensitivity indices are obtained directly from the expansion coefficients by a mere post-processing. Bayesian inference via Markov chain Monte Carlo posterior sampling is drastically accelerated.
Fast flowing populations are not well mixed
Creators: name: Herrerías-Azcué, Francisco
name: Pérez-Muñuzuri, Vicente
name: Galla, Tobias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: In evolutionary dynamics, well-mixed populations are almost always associated with all-to-all interactions; mathematical models are based on complete graphs. In most cases, these models do not predict fixation probabilities in groups of individuals mixed by flows. We propose an analytical description in the fast-flow limit. This approach is valid for processes with global and local selection, and accurately predicts the suppression of selection as competition becomes more local. It provides a modelling tool for biological or social systems with individuals in motion.
description: 19 pages, 8 figures
Samarium(II) dibromide-promoted selective deprotection of a benzoyl protective group
Creators: name: Yokoyama, Yasuo
name: Oyamada, Shun
name: Suzuki, Junya
name: Maruyama, Shou
name: Sakusabe, Takahiro
name: Suzuki, Shoko
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The selective deprotection of a benzoyl group was very important methodology in the field of organic synthesis. Various methods for debenzoylation were investigated and developed in the past six decades, but more useful and selective strategies are now being strongly desired. In response to this strong demand, we developed the novel and selective deprotection of a benzoyl group by use of samarium(II) dibromide and a proton source. This deprotective reaction proceeded smoothly and the desired compound was obtained in good to excellent yields. In this paper, we will report the details of this deprotective reaction.
Birth Death Swap population in random environment and aggregation with two timescales
Creators: name: Kaakai, Sarah
name: Karoui, Nicole El
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: This paper deals with the stochastic modeling of a class of heterogeneous population in a random environment, called birth-death-swap. In addition to demographic events, swap events, i.e. moves between subgroups, occur in the population. Event intensities are random functionals of the multi-type population. In the first part, we show that the complexity of the problem is significantly reduced by modeling the jumps measure of the population, described by a multivariate counting process. This process is defined as a solution of a stochastic differential system with random coefficients, driven by a multivariate Poisson random measure. The solution is obtained under weak assumptions, by the thinning of a strongly dominating point process generated by the same Poisson measure. This key construction relies on a general strong comparison result, of independent interest. The second part is dedicated to averaging results when swap events are significantly more frequent than demographic events. An important ingredient is the stable convergence, which is well-adapted to the general random environment. The pathwise construction by domination yields tightness results straightforwardly. At the limit, the demographic intensity functionals are averaged against random kernels depending on swap events. Finally, under a natural assumption, we show the convergence of the aggregated population to a "true" birth-death process in random environment, with non-linear intensity functionals.
description: 35 pages, 2 figures
Beyond the Kepler/K2 bright limit: variability in the seven brightest members of the Pleiades
Creators: name: White, T. R.
name: Pope, B. J. S.
name: Antoci, V.
name: Pápics, P. I.
name: Aerts, C.
name: Gies, D. R.
name: Gordon, K.
name: Huber, D.
name: Schaefer, G. H.
name: Aigrain, S.
name: Albrecht, S.
name: Barclay, T.
name: Barentsen, G.
name: Beck, P. G.
name: Bedding, T. R.
name: Andersen, M. Fredslund
name: Grundahl, F.
name: Howell, S. B.
name: Ireland, M. J.
name: Murphy, S. J.
name: Nielsen, M. B.
name: Aguirre, V. Silva
name: Tuthill, P. G.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The most powerful tests of stellar models come from the brightest stars in the sky, for which complementary techniques, such as astrometry, asteroseismology, spectroscopy, and interferometry can be combined. The K2 Mission is providing a unique opportunity to obtain high-precision photometric time series for bright stars along the ecliptic. However, bright targets require a large number of pixels to capture the entirety of the stellar flux, and bandwidth restrictions limit the number and brightness of stars that can be observed. To overcome this, we have developed a new photometric technique, that we call halo photometry, to observe very bright stars using a limited number of pixels. Halo photometry is simple, fast and does not require extensive pixel allocation, and will allow us to use K2 and other photometric missions, such as TESS, to observe very bright stars for asteroseismology and to search for transiting exoplanets. We apply this method to the seven brightest stars in the Pleiades open cluster. Each star exhibits variability; six of the stars show what are most-likely slowly pulsating B-star (SPB) pulsations, with amplitudes ranging from 20 to 2000 ppm. For the star Maia, we demonstrate the utility of combining K2 photometry with spectroscopy and interferometry to show that it is not a 'Maia variable', and to establish that its variability is caused by rotational modulation of a large chemical spot on a 10 d time scale.
description: Published in Monthly Notices of the Royal Astronomical Society. 20 pages, 10 figures and 10 tables
Schinus limonia Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Sapindales
Anacardiaceae
Schinus
Schinus limonia

description: Schinus limonia, spec. nov.
 6. Schinus foliis pinnatis, petiolo marginato articulato, spinis axillaribus solitariis. Fl. zeyl. 175. *
 Malus Limonia indica, fructu pusillo. Raj. hist. 1658.
 Tserou katou Naregam. Rheed. mal. 4. p. 31 t. 14.
 Reference ambiguous: text as printed is “p. - - - t. 12.”. In Reede, Tsjerou-katou-naregam is p.31, t.14; Mal-naregam is p.27, t.12.
 Habitat in India utraque. ♄
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 389, DOI: 10.5281/zenodo.3931989
Cliente mistério como ferramenta para melhoria da gestão da qualidade em serviços
Creators: name: Cunha Araújo, Luana
Publisher: name: Estudos do ISCA
Year: 2019

description: O cliente mistério é uma ferramenta qualitativa de pesquisa de mercados que busca essencialmente obter o feedback real da qualidade do serviço prestado. Diante da alta competitividade no mercado atual, medir a satisfação dos clientes por eio de questionários já não batsa, pois para gerar vantagem competitiva é necessário alcançar a excelência na experiência do serviço com foco no cliente. Esta dissertação teve como metodologia o estudo de caso único que foi desenvolvido em uma empresa de telecomunicações portuguesa, que por motivos de confidenciabilidade não foi explicitada. Tratando-se do setor com maior índice de reclamações atualmente no mercado parece evidente que mais estudos para compreensão das falhas no atendimento deste setor sejam relevantes. Do mesmo modo, o desenvolvimento de ferramentas que venham ajudar a desenvolver maior qualidade no atendimento do serviço prestado e consequentemente melhorar a satisfação no atendimento dos consumidores. Para a realiazação do estudo a metodologia desenvolveu-se no seguinte formato: revisão de literatura, preparação do guião semiestruturado que foi utilizado como intrumento da recolha de dados, a pesquisa de campo efetuada através de cliente mistério, análise dos guiões e apresentação dos resultados encontrados. a pesquisa foi aplicada em dois períodos distintos, afim de poder utilizar os dados anteriores para uma possível comparação de resultados e auxiliar na perceção do contributo da aplicação do cliente mistério para a organização, sendo possível haver uma análise comparativa das mudanças que ocorreram após a primeira visita do cliente mistério e a segunda. Após análise dos dados recolhidos foram sugeridas melhorias à gestão e foi apresentado os resultados, isto é, as principais falhas no atendimento da empresa. Ainda no que tange os resultados apresentados, não foi possível confirmar a eficácia da aplicação do cliente mistério como ferramenta de melhoria para a gestão da qualidade dos serviços, pois não houve treinamento dos funcionários por parte da empresa no intervalo de tempo das pesquisas, mesmo assim, no estudo que se fez, se encontrou resultados relevantes e se espera que estes resultados apresentem contributos importantes para a empresa, ao implementar as sugestões apresentadas, assim como para as demais operadoras do setor de telecomunicações Portuguesas que poderão consultar este trabalho.
description: Estudos do ISCA, n.º 17 (2018)
Relativistic Nonlinear Whistler Waves in Cold Magnetized Plasmas
Creators: name: Tzenov, Stephan I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Starting from the Vlasov-Maxwell equations describing the dynamics of various species in a quasi-neutral plasma immersed in an external solenoidal magnetic field and utilizing a technique known as the hydrodynamic substitution, a relativistic hydrodynamic system of equations governing the dynamics of various species has been obtained. Based on the method of multiple scales, a system comprising three nonlinear Schrodinger equation for the transverse envelopes of the three basic whistler modes, has been derived. Using the method of formal series of Dubois-Violette, a traveling wave solution of the derived set of coupled nonlinear Schrodinger equations in both the relativistic and the non relativistic case has been obtained. An intriguing feature of our description is that whistler waves do not perturb the initial uniform density of plasma electrons. The plasma response to the induced whistler waves consists in transverse velocity redistribution, which follows exactly the behaviour of the electromagnetic whistlers. This property may have an important application for transverse focusing of charged particle beams in future laser plasma accelerators. Yet another interesting peculiarity are the selection rules governing the nonlinear mode coupling. According to these rules self coupling between modes in the non relativistic regime is absent, which is a direct consequence of the vector character of the interaction governed by the Lorentz force.
description: 9 pages, 2 figures
The effect of Silk damping on primordial magnetic fields
Creators: name: Brandenburg, Axel
name: Enqvist, Kari
name: Olesen, Poul
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the effects of plasma viscosity on the dynamics of primordial magnetic fields by simulating magnetohydrodynamics in the early universe by appropriate non-linear cascade models. We find numerically that even in the presence of large kinetic viscosity, magnetic energy is transferred to large length scales. There are indications, however, that the inverse cascade stops at a given time which depends on the magnitude of viscosity. For realistic viscosities we do not find equipartition between magnetic and kinetic energies.
description: 11 pages, LaTeX type, 4 ps figures included
A importância de Continuous Assurance: a perspetiva dos auditores internos
Creators: name: Santos Barros, Cátia Alexandra
Publisher: name: Estudos do ISCA
Year: 2019

description: Em resultado da crescente exigência na credibilidade da informação financeira fornecida, a auditoria interna tem vindo a desempenhar um papel cada vez mais importante nas organizações. Atualmente existe a necessidade de garantir a conformidade das transações organizacionais em tempo real de forma a aumentar a confiabilidade na informação e diminuir os riscos. Neste contexto, o conceito de Continuous Assurance tem vindo a ganhar relevo, permitindo reduzir potenciais erros e riscos e obter informações úteis em tempo real suportando mais eficazmente a tomada de decisão. Como objetivo central desta dissertação, procurou-se compreender qual a importância e a utilização de serviços de Continuous Assurance na ótica do auditor interno. A metodologia utilizada é do tipo exploratório-descritiva, de natureza qualitativa e recorreu a inquérito por questionário. Os principais resultados demonstram, entre outros aspetos, que os serviços de Continuous Assurance são considerados pelos auditores internos como muito importantes. Apesar disso, a sua implementação nas organizações não acompanha a importância que lhe é atribuída, estando ainda longe de estar completamente concretizada. O número de auditores que compõe o departamento de auditoria é um fator influenciador no que diz respeito à utilização de alguns serviços de Continuous Asssurance.
description: Estudos do ISCA, n.º 17 (2018)
Kac-Moody Algebras, the Monstrous Moonshine, Jacobi Forms and Infinite Products
Creators: name: Yang, Jae-Hyun
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F30, 11F55, 17B65, 17B67, 20C34, 20D08

description: In this article, we discuss the relation between Kac-Moody algebras, the monstrous moonshine, Jacobi forms and infinite products. We also review Borcherds' solution of the Moonshine Conjecture and his work of constructing automorphic forms on the orthogonal group which can be written as infinite products.
description: 78 pages I added two more Dynkin diagrams in page 7. I corrected several typos
Causas das fraudes: um estudo qualitativo das causas das fraudes nos EUA e UE no século XXI
Creators: name: Gaspar Dos Santos, Fábio André
Publisher: name: Estudos do ISCA
Year: 2019

description: As fraudes vindas a público no início do século XXI deterioraram a confiança dos investidores e da sociedade em geral nos mercados financeiros, além de toda a destruição económica e social que trouxeram. Em resposta a casos como a Enron e a WorldCom, os Estados Unidos da América promulgaram a Lei Sarbanes-Oxley (SOX) e na União Europeia, respondendo não só à Enron, mas também às próprias fraudes na Europa, foram promulgadas várias iniciativas legislativas. Apesar destas ações, num passado recente os dois lados do Atlântico voltaram a ser alvo de casos de fraudes de grandes dimensões. O objetivo desta dissertação é entender quais as causas mais relevantes que estiveram na origem das fraudes nestas duas geografias e dois horizontes temporais (antes e depois da implementação da SOX). Posteriormente, analisa-se também se entre períodos existiram alterações na relevância das causas. Através da análise de vários casos de fraude e da definição de um grupo de causas comuns para o despoletar da fraude é feita a classificação da relevância de cada causa para o eclodir da fraude em cada caso de fraude. As conclusões permitem observar as tendências das causas mais e menos relevantes nos períodos pré e pós-SOX. A falta de tom ético na gestão de topo revela-se como a causa mais relevante e transversal às várias fraudes, enquanto que a passividade dos investidores se revela como a causa transversal menos relevante. Da passagem do pré para o pós-SOX, observa- se uma tendência para que as demonstrações financeiras adulteradas deixem de ser uma das causas mais relevantes para ceder o lugar aos controlos internos fracos, apesar da SOX incidir com particular força nesta última área. A regulação fraca é substituída pela sobre-expansão do negócio como uma das causas menos relevantes após a implementação da SOX.
description: Estudos do ISCA, n.º 17 (2018)
The Very Worst Day
Creators: name: Project Team, Their Finest Hour
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: My father, Norman Shaw took part in the D-Day landings driving a tanker of aviation fuel to establish a landing strip in France for Typhoon fighter planes. He was hurried on by all around as he and his load were deemed a potential bomb in their midst. He stated after surviving this day, every other was a bonus.The making of a man truly, as he died after a full day's work at the age of 80, in 2004, just after my parents celebrated their diamond wedding anniversary.
Topological Jordan decompositions
Creators: name: Spice, Loren
Publisher: name: arXiv
Year: 2006
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20G25, 22E35 (Primary) 22D05 (Secondary)

description: The notion of a topological Jordan decomposition of a compact element of a reductive p-adic group has proven useful in many contexts. In this paper, we generalise it to groups defined over fairly general discretely-valued fields and prove the usual existence and uniqueness properties, as well as an analogue of a fixed-point result of Prasad and Yu.
description: 28 pages
Stone type representation theorems via games
Creators: name: Aslan, Tuğba
name: Khaled, Mohamed
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: Primary 03G15, Secondary 06E25, 03B45

description: The classes of relativized relation algebras (whose units are not necessarily transitive as binary relations) are known to be finitely axiomatizable. In this article, we give a new proof for this fact that is easier and more transparent than the original proofs. We give direct constructions for all cases, whereas the original proofs reduced the problem to only one case. The proof herein is combinatorial and it uses some techniques from game theory.
A discrete-time Markov modulated queuing system with batched arrivals
Creators: name: Clegg, Richard G.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: Dynamical Systems (math.DS)
subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: This paper examines a discrete-time queuing system with applications to telecommunications traffic. The arrival process is a particular Markov modulated process which belongs to the class of discrete batched Markovian arrival processes. The server process is a single server deterministic queue. A closed form exact solution is given for the expected queue length and delay. A simple system of equations is given for the probability of the queue exceeding a given length.
description: to appear Performance Evaluation
title: ADCO, Cartulaire de l'abbaye de Saint-Seine (XIIIe siècle), Cart. 165 (10 H 6, ms. 139), 354 pages, f. 0318
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire
subject: Corpus Burgundiae Medii Aevi

description: Cartulaire de l'abbaye de Saint-Seine (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 165 (10 H 6, ms. 139), 354 pages, f. 0318, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de l'abbaye de Saint-Seine (XIIIe siècle), Archives départementales de la Côte-d'Or, Cart. 165 (10 H 6, ms. 139), 354 pages, f. 0318, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Saint-Seine
description: Provenance: http://www.wikidata.org/entity/Q2820709