cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Reflexion in mathematical models of decision-making
Creators: name: Novikov, Dmitry
name: Korepanov, Vsevolod
name: Chkhartishvili, Alexander
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: The paper is devoted to a generalization of static and dynamic mathematical models of behavior with explicitly stated reflexive models of agents' decision-making. Reflexion is considered as agent's beliefs about nature, opponents' beliefs and opponents' decision-making principles in the framework of game theory, collective behavior theory and learning models.
description: This is an Accepted Manuscript of an article published by Taylor & Francis Group in the International Journal of Parallel, Emergent & Distributed Systems on 01/12/2017, available online: http://www.tandfonline.com/10.1080/17445760.2017.1413189
Collaborative 20 Questions for Target Localization
Creators: name: Tsiligkaridis, Theodoros
name: Sadler, Brian M.
name: Hero, Alfred O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We consider the problem of 20 questions with noise for multiple players under the minimum entropy criterion in the setting of stochastic search, with application to target localization. Each player yields a noisy response to a binary query governed by a certain error probability. First, we propose a sequential policy for constructing questions that queries each player in sequence and refines the posterior of the target location. Second, we consider a joint policy that asks all players questions in parallel at each time instant and characterize the structure of the optimal policy for constructing the sequence of questions. This generalizes the single player probabilistic bisection method for stochastic search problems. Third, we prove an equivalence between the two schemes showing that, despite the fact that the sequential scheme has access to a more refined filtration, the joint scheme performs just as well on average. Fourth, we establish convergence rates of the mean-square error (MSE) and derive error exponents. Lastly, we obtain an extension to the case of unknown error probabilities. This framework provides a mathematical model for incorporating a human in the loop for active machine learning systems.
description: 34 pages, accepted to IEEE Transactions on Information Theory
title: Coprophilous fungi as paleo indicators for moose presence after introduction to Newfoundland
Creators: name: Walker, Amber
Publisher: name: Memorial University of Newfoundland
publisherIdentifier: https://ror.org/04haebc03
publisherIdentifierScheme: ROR
Year: 2024

description: To study the non-native moose (Alces alces) population on Newfoundland, successfully introduced in 1904, a paleolimnological approach was used: coprophilous fungal spores were isolated in two 210Pb-dated lake sediment cores to compare with historical abundance numbers for moose. We predicted that, as commonly practiced with megafauna, coprophilous spores would correspond with abundance data. Cores from two ponds were sectioned at 0.25 cm intervals resulting in ~3-4 years in each slice of sediment from ~1850 to 2021. The counts were numerically treated for each spore type and the spore total by two different methods in 24 samples from each core: 1) as a percent of the tracer Lycopodium present and 2) as an accumulation rate. Coprophilous spores counted in this study include Podospora, Sordaria, Sporomiella, Arnium, Coniochaeta, Ascodesmis, and Delitschia. Results corresponded between moose abundance and spores for Little Crow Pond, but were less promising for Pitcher Pond, possibly due to dating error. Our prediction was supported by the similar trends of coprophilous spore abundance and moose population estimates through time, serving as a validation of these spores as a proxy for large herbivores. With further research, this method may be applicable to the native caribou (Rangifer tarandus).
Incremental Network Design with Minimum Spanning Trees
Creators: name: Engel, Konrad
name: Kalinowski, Thomas
name: Savelsbergh, Martin W. P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05C85, 90C27, 90C35

description: Given an edge-weighted graph $G=(V,E)$ and a set $E_0\subset E$, the incremental network design problem with minimum spanning trees asks for a sequence of edges $e'_1,\ldots,e'_T\in E\setminus E_0$ minimizing $\sum_{t=1}^Tw(X_t)$ where $w(X_t)$ is the weight of a minimum spanning tree $X_t$ for the subgraph $(V,E_0\cup\{e'_1,\ldots,e'_t\})$ and $T=\lvert E\setminus E_0\rvert$. We prove that this problem can be solved by a greedy algorithm.
description: 9 pages, minor revision based on reviewer comments
The relationship between the prestellar core mass function and the stellar initial mass function
Creators: name: Goodwin, Simon P
name: Nutter, Dave
name: Kroupa, Pavel
name: Ward-Thompson, Derek
name: Whitworth, Anthony P
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stars form from dense molecular cores, and the mass function of these cores (the CMF) is often found to be similar to the form of the stellar initial mass function (IMF). This suggests that the form of the IMF is the result of the form of the CMF. However, most stars are thought to form in binary and multiple systems, therefore the relationship between the IMF and the CMF cannot be trivial. We test two star formation scenarios - one in which all stars form as binary or triple systems, and one in which low-mass stars form in a predominantly single mode. We show that from a log-normal CMF, similar to those observed, and expected on theoretical grounds, the model in which all stars form as multiples gives a better fit to the IMF.
description: 7 pages, 3 figures, A&A in press
title: 03_0493
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
title: Texte Interview Meistre Nicodème
Creators: name: Di Giannatale, Victor Alfredo
name: Giannuzzi, Giulia
name: Siragusa, Federico
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024

description: Transcription de l'interview avec l'auteur Jean-Luc Plastrier-Pitteloud, alias Meistre Nicodème, s'est déroulée à Perronas le 09.05.2022. Son amour pour le Moyen Âge a commencé dans son enfance en vivant près de sites historiques. Il souhaite éliminer les idées fausses sur cette époque dans ses écrits, mettant en avant les femmes puissantes et la richesse de la période.
Testing the effects of gravity and motion on quantum entanglement in space-based experiments
Creators: name: Bruschi, David Edward
name: Sabín, Carlos
name: White, Angela
name: Baccetti, Valentina
name: Oi, Daniel K. L.
name: Fuentes, Ivette
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We propose an experiment to test the effects of gravity and acceleration on quantum entanglement in space-based setups. We show that the entanglement between excitations of two Bose-Einstein condensates is degraded after one of them undergoes a change in the gravitational field strength. This prediction can be tested if the condensates are initially entangled in two separate satellites while being in the same orbit and then one of them moves to a different orbit. We show that the effect is observable in a typical orbital manoeuvre of nanosatellites like CanX4 and CanX5.
description: v1: 6 pages, 2 figure. I. F. previously published as I. Fuentes-Guridi and I. Fuentes-Schuller. v2: appendices added. 8 pages, 2 figures. v3: minor changes, published version. v4: Typos corrected. Final version
Financing Agriculture and Rural America: Issues of Policy, Structure and Technical Change: A Study of the Risk of Issuing FSA Guarantees on Contract Land Sales to Beginning Farmers
Creators: name: Dodson, Charles
name: Dodson, Charles
Publisher: name: Unknown
Year: 2002
Subjects: Risk and Uncertainty

description: Risks associated with guarantees of land contracts are expected to be greater than guarantees of loans made by commercial lenders. Farmers utilizing seller-financing have greater debts, less cash flow, less equity in real estate, and less solvency than farmers utilizing regular FSA guarantees. Consequently, defaults and loan loss levels are expected to be 50 percent higher than loss rates on guaranteed loans made by commercial lenders. In addition, ambiguities in real estate laws concerning the administration of land contracts would likely result in higher servicing and liquidation costs. Therefore, if the contract land sale guarantee is structured as the current program, the costs per dollar lent would be much higher than for traditional guarantees. Guaranteeing the payment rather than the principal could reduce risks associated with guarantees of land contracts. Under this alternative FSA would make a guarantee to the seller equal to one annual installment which would be paid upon default by the buyer. Because total losses are limited to an amount equal to one or two annual installments, this alternative would greatly limit potential losses. However, the frequency of losses for seller financed loans would be greater than if this option was used on regular guarantees. In summary, FSA guarantees of land contracts should enable a limited additional number of beginning farmers to acquire farmland. As long as losses are limited, the risk associated with the issuing land contract guarantees should not be notably greater than for losses occurring in the traditional guarantee program.
Special Issue on New Perspectives in Scheduling
Creators: name: Harchol-Balter, Mor
Publisher: name: Carnegie Mellon University
Year: 1985
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: I would like to introduce this issue by telling a story. Sometime back in 1997, I wrote a paper on a new idea for improving the response times of http requests at a Web server. The idea was to schedule the HTTP requests so as to favor requests for small files, in accordance with the well-known scheduling policy Shortest Remaining Processing Time (SRPT). The paper was rejected, for many reasons, but the review that stuck in my mind was the one that said, "Why is this person writing about scheduling? Scheduling is dead." According to this reviewer, everything that would ever be known about scheduling was already described in the beautiful Theory of Scheduling book, written in 1967, by Conway, Maxwell, and Miller.
PSR J1618-3921: a recycled pulsar in an eccentric orbit
Creators: name: Octau, F.
name: Cognard, I.
name: Guillemot, L.
name: Tauris, T. M.
name: Freire, P. C. C.
name: Desvignes, G.
name: Theureau, G.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: PSR~J1618$-$3921 is an $11.99$-ms pulsar in a $22.7$-d orbit around a likely low-mass He white dwarf companion, discovered in a survey of the intermediate Galactic latitudes at 1400 MHz conducted with the Parkes radio telescope in the late 1990s. Although PSR~J1618$-$3921 was discovered more than 15 years ago, only limited information has been published about this pulsar which has a surprisingly large orbital eccentricity ($e \simeq 0.027$), considering its high spin frequency and likely small companion mass. The focus of this work is a precise measurement of the spin, astrometric and orbital characteristics of PSR J1618$-$3921. This was done with timing observations made at the Nançay Radio Telescope, from 2009 to 2017. We analyzed the timing data recorded at the Nançay Radio Telescope over several years to characterize the properties of PSR~J1618$-$3921. A rotation ephemeris for this pulsar was obtained by analyzing the times of arrival of the radio pulses at the telescope. We confirm the unusual eccentricity of PSR~J1618$-$3921 and discuss several hypotheses regarding its formation, in the context of other discoveries of recycled pulsars in eccentric orbits.
description: 6 pages, 3 tables, 3 figures. Accepted for publication in Astronomy & Astrophysics
Self-Organized Criticality and earthquakes
Creators: name: Caruso, F.
name: Pluchino, A.
name: Latora, V.
name: Rapisarda, A.
name: Vinciguerra, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Geophysics (physics.geo-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We discuss recent results on a new analysis regarding models showing Self-Organized Criticality (SOC), and in particular on the OFC one. We show that Probability Density Functions (PDFs) for the avalanche size differences at different times have fat tails with a q-Gaussian shape. This behavior does not depend on the time interval adopted and it is also found when considering energy differences between real earthquakes.
description: 4 pages, Paper presented at the international conference CTNEXT07, satellite of STATPHYS23, 1-5 july 2007, Catania, Italy http://www.ct.infn.it/ctnext07/
Mapping Resilience: the MorphoSedimentological Map of San Vincenzo (Tuscany, Italy)
Creators: name: Francesco, Bianco
name: Pranzini Enzo
name: Bonciani Filippo
name: Cinelli Irene
name: Lanciano Chiara
name: Morandotti Marco
name: Simoncini Daniele
name: Baldetti Antonio
name: Cipriani Luigi Emanuele
Publisher: name: Zenodo
Year: 2019
Subjects: Morpho sedimentological map
Morphodynamics
Coastal erosion assessment
Geomorphological mapping

description: The San Vincenzo coastal area (Livorno, Tuscany – Italy) morpho sedimentological map represents a quantitative research on assessing and manage coastal erosion risk, through the computation of sedimentary stock. The presented method links the geomorphic mapping guidelines, issued in 2017 by Regione Toscana, and the Italian Geo thematic cartography procedures (CARG). To integrate the different features and procedures provides an exhaustive overview on the main coastal processes at San Vincenzo. It highlights a lack on the sampling locations, especially near the sedimentary discharge sites, as well as at a basin scale, to deeper investigate sediment supply processes. Moreover, the geodatabase allows us to analyze the anthropogenic impact on the coastal dynamics and the resilience potential as a PhD project
Derivation of the Dirac Equation from Principles of Information Processing
Creators: name: D'Ariano, G. M.
name: Perinotti, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how the Dirac equation in three space-dimensions emerges from the large-scale dynamics of the minimal nontrivial quantum cellular automaton satisfying unitariety, locality, homogeneity, and discrete isotropy, without using the relativity principle. The Dirac equation is recovered for small wave-vector and inertial mass, whereas Lorentz covariance is distorted in the ultra-relativistic limit. The automaton can thus be regarded as a theory unifying scales from Planck to Fermi. A simple asymptotic approach leads to a dispersive Schroedinger equation describing the evolution of narrow-band states at all scales.
description: 20 pages, 9 figures, revtex4, revised version
Suppl. Table 1 from A novel yeast-based high-throughput method for the identification of protein palmitoylation inhibitors
Creators: name: Arrechea, Consuelo Coronel
name: Giolito, María Luz
name: García, Iris Alejandra
name: Soria, Gastón
name: Taubas, Javier Valdez
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 60113 Synthetic Biology

description: is a list of oligos used throughout this work
title: 01_2696
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Higher-$n$ triangular dilatonic black holes
Creators: name: Zadora, Anton
name: Gal'tsov, Dmitri V.
name: Chen, Chiang-Mei
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Dilaton gravity with the form fields is known to possess dyon solutions with two horizons for the discrete ("triangular") values of the dilaton coupling constant $a = \sqrt{n (n + 1)/2}$. From this sequence only $n = 1,\, 2$ members were known analytically so far. We present two new $n = 3,\, 5$ triangular solutions for the theory with different dilaton couplings $a,\, b$ in electric and magnetic sectors in which case the quantization condition reads $a b = n (n + 1)/2$. These are derived via the Toda chains for $B_2$ and $G_2$ Lie algebras. Solutions are found in the closed form in general $D$ space-time dimensions. They satisfy the entropy product rules and have negative binding energy in the extremal case.
description: Acknowledgement corrected
Evolutionary accessibility of modular fitness landscapes
Creators: name: Schmiegelt, Benjamin
name: Krug, Joachim
Publisher: name: arXiv
Year: 2013
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: A fitness landscape is a mapping from the space of genetic sequences, which is modeled here as a binary hypercube of dimension $L$, to the real numbers. We consider random models of fitness landscapes, where fitness values are assigned according to some probabilistic rule, and study the statistical properties of pathways to the global fitness maximum along which fitness increases monotonically. Such paths are important for evolution because they are the only ones that are accessible to an adapting population when mutations occur at a low rate. The focus of this work is on the block model introduced by A.S. Perelson and C.A. Macken [Proc. Natl. Acad. Sci. USA 92:9657 (1995)] where the genome is decomposed into disjoint sets of loci (`modules') that contribute independently to fitness, and fitness values within blocks are assigned at random. We show that the number of accessible paths can be written as a product of the path numbers within the blocks, which provides a detailed analytic description of the path statistics. The block model can be viewed as a special case of Kauffman's NK-model, and we compare the analytic results to simulations of the NK-model with different genetic architectures. We find that the mean number of accessible paths in the different versions of the model are quite similar, but the distribution of the path number is qualitatively different in the block model due to its multiplicative structure. A similar statement applies to the number of local fitness maxima in the NK-models, which has been studied extensively in previous works. The overall evolutionary accessibility of the landscape, as quantified by the probability to find at least one accessible path to the global maximum, is dramatically lowered by the modular structure.
description: 26 pages, 12 figures; final version with some typos corrected
Spatial Join Selectivity Using Power Laws
Creators: name: Faloutsos, Christos
name: Seeger, Bernhard
name: Agma  Traina
name: Traina, Caetano
Publisher: name: Carnegie Mellon University
Year: 1976
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We discovered a surprising law governing the spatial join selectivity across two sets of points. An example of such a spatial join is "find the libraries that are within 10 miles of schools". Our law dictates that the number of such qualifying pairs follows a power law, whose exponent we call "pair-count exponent" (PC). We show that this law also holds for self-spatial-joins ("find schools within 5 miles of other schools") in addition to the general case that the two point-sets are distinct. Our law holds for many real datasets, including diverse environments (geographic datasets, feature vectors from biology data, galaxy data from astronomy). In addition, we introduce the concept of the Box-Occupancy-Product-Sum (BOPS) plot, and we show that it can compute the pair-count exponent in a timely manner, reducing the run time by orders of magnitude, from quadratic to linear. Due to the pair-count exponent and our analysis (Law 1), we can achieve accurate selectivity estimates in constant time (O(1)) without the need for sampling or other expensive operations. The relative error in selectivity is about 30% with our fast BOPS method, and even better (about 10%), if we use the slower, quadratic method.
title: 01_0156
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Very Special Relativity and Lorentz Violating Theories
Creators: name: Alfaro, Jorge
name: Rivelles, Victor O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Very special relativity (VSR) keeps the main features of special relativity but breaks rotational invariance. It can not be regarded as a fundamental symmetry of nature because many observed phenomena depend on the existence of Lorentz boosts. However, within the scope of Lorentz violating theories it can have a role since it is breaking Lorentz symmetry in a very mild way. In this context, when VSR terms are incorporated in a Lorentz invariant theory several possibilities are allowed. In order to generate such terms systematically we start with a formulation for a spinning particle in VSR. It is then coupled minimally to the electromagnetic field and a gyromagnetic factor is added to give rise to a magnetic moment. In order to analyze the effects of VSR in Thomas precession a spin vector is then proposed in terms of the spinning particle variables. It is then found the VSR contributions to the equation which determines the spin precession angular velocity.
description: Latex, 16 pages. Add references and discussion on the distribution function
Link between quantum measurement and the iε term in the QFT propagator
Creators: name: Sverdlov, Roman
name: Bombelli, Luca
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Mensky has suggested to account for "continuous measurement" by attaching to a path integral a weight function centered around the classical path that the integral assigns a probability amplitude to. We show that in fact this weight function doesn't have to be viewed as an additional ingredient put in by hand. It can be derived instead from the conventional path integral if the infinitesimal term iε in the propagator is made finite; the "classical trajectory" is proportional to the current.
description: 5 pages, 0 figures
The Essential Skeleton of a product of degenerations
Creators: name: Brown, Morgan
name: Mazzon, Enrica
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We study the problem of how the dual complex of the special fiber of an snc degeneration $\cX_R$ changes under products. We view the dual complex as a skeleton inside the Berkovich space associated to $X_K$. Using the Kato fan, we define a skeleton $\Sk(\cX_R)$ when the model $\cX_R$ is log-regular. We show that if $\cX_R$ and $\cY_R$ are log-regular, and at least one is semistable, then $\Sk(\cX_R\times_R \cY_R) \simeq \Sk(\cX_R)\times \Sk(\cY_R)$. The essential skeleton $\Sk(X_K)$, defined by Mustaţă and Nicaise, is a birational invariant of $X_K$ and is independent of the choice of $R$-model. We extend their definition to pairs, and show that if both $X_K$ and $Y_K$ admit semistable models, $\Sk(X_K\times_K Y_K) \simeq \Sk(X_K)\times \Sk(Y_K)$. As an application, we compute the homeomorphism type of the dual complex of some degenerations of hyper-K{ä}hler varieties. We consider both the case of the Hilbert scheme of a semistable degeneration of K3 surfaces, and the generalized Kummer construction applied to a semistable degeneration of abelian surfaces. In both cases we find that the dual complex of the $2n$-dimensional degeneration is homeomorphic to either a point, $n$-simplex, or $\mathbb{C}\mathbb{P}^n$, depending on the type of the degeneration.
title: ADCO, Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Cart. 177 (11 H 289), 197 folios, f. 0203
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/2015
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Cartulaire de Cîteaux pour les domaines de Beaune (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0203, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions d’Izeure (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 177 (11 H 289), 197 folios, f. 0203, 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
Lettre de Antoine Gouan à Jean-François Séguier, 1777-05-26
Creators: name: Gouan, Antoine
name: Gouan, Antoine
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: Botanique

description: [fol. 204] Montpellier 26 mai 1777

Mon très cher ami,

M. Delassonne et Sabatier mon confrère viennent à Nîmes uniquement pour vous et j’eusse fait le quatrième si j’eusse été prévenu quelques jours à l’avance. Ce sera pour une autre fois. EN attendant, recevez avec mes regrets quelques thèses que je vous avais réservées.
Je suis tout occupé dans mon cabinet à mettre mes observations sur Belleval. Je vous ai déjà dit que le roi de Pologne voulait les faire imprimer à Varsovie et j’espère dans peu que cet ouvrage paraîtra sous ses auspices, car avant 6 mois mes manuscrits y seront, les cuivres y étant déjà depuis un an. J’ai un besoin extrême des Saules, des Renoncules et des Potentilla, trois genres qui me tourmentent. Veuillez bien confier à Sabatier 1° tous les Saules 2° les Potentilla du Mont-Balde et les Renoncules alpines dont j’ai besoin pour une confrontation ultérieure et soyez assuré que j’en aurai tout le soin possible et vous les aurez avec les deux livres que j’ai à vous comme Hortus cliffortis et Petiver. Je vous prie de ne pas me refuser cette satisfaction. Je vous embrasse de tout mon cœur et suis pour la vie votre ami.

 Gouan

PS : M. Delassonne m’est attaché. Je vous dirai en secret que M. son père à des vues sur moi ainsi que M. Lieutaud, vous me ferez plaisir de parler à M. Delassonne en ma faveur et d’un ton à l’engager à m’aider auprès de son père, quoi qu’il ignore encore les projets que son père et M. Lieutaud ont formé relativement à la botanique et que je vous confierai bientôt.

Cité : François Xavier Delassonne (1717-1788), fils, futur médecin de Louis XVI
Joseph Marie Delassonne père, médecin
Joseph Lieutaud (1703-1780)
description: Source: [établissement de conservation] Nîmes, Bibliothèque Carré d'Art [cote] ms. 144, fol. 204
title: Providing care during early warning signs and relapse in psychosis: exploring mental health staff perspectives using grounded theory methods
Creators: name: Beedie, Sara
Publisher: name: University of Glasgow
Year: 2019
Subjects: subject: Psychosis, mental health staff, qualitative methods, relapse, early warning signs, therapeutic relationships.

description: Objectives: Episodes of relapse in psychosis can have profound adverse consequences for service users and their families. Efforts to prevent relapse, or minimise its impact, may be supported by the recognition of early warning signs (EWS). However, several challenges exist to both service users’ help-seeking and services’ provision of care during these periods. It is important that this context is understood if novel interventions are to be effectively implemented in practice. This study therefore aimed to explore staff experiences of providing care at times of EWS or relapse of psychosis. Design: The study was part of an on-going trial of an intervention for early signs monitoring (EMPOWER: ISRCTN 99559262). Data collection and analysis were informed by grounded theory methods. Methods: Five mental health key workers in community mental health teams were interviewed about their experiences of providing care during EWS or relapse. Pre-existing focus group transcripts were also used to check and further refine developing categories. Results: Keyworkers framed their practice around EWS as intertwined with their relationships with service users. Decision making around care at these times was influenced by the keyworkers’ appraisals of trust, wider social support networks and constructed knowledge of the service user. EWS episodes were experienced as opportunities for learning for both keyworker and service user. In this way, keyworkers described potential for more attuned care and improved service user expectations of service response to EWS. However, where service users were perceived to lack insight, or did not engage in reflection on past episodes, encouraging earlier help seeking was appraised as difficult or impossible. Conclusion: Keyworkers experience long-term relationships and their knowledge of the service user as key in the provision of care during early relapse. Implications for the development of interventions for early relapse are discussed.
Inner and outer star forming regions over the disks of spiral galaxies. I. Sample characterization
Creators: name: Rodríguez-Baras, M.
name: Díaz, A. I.
name: Rosales-Ortega, F. F.
name: Sánchez, S. F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Context. The knowledge of abundance distributions is central to understanding the formation and evolution of galaxies. Most of the relations employed for the derivation of gas abundances have so far been derived from observations of outer disk HII regions, despite the known differences between inner and outer regions. Aims. Using integral field spectroscopy (IFS) observations we aim to perform a systematic study and comparison of two inner and outer HII regions samples. The spatial resolution of the IFS, the number of objects and the homogeneity and coherence of the observations allow a complete characterization of the main observational properties and differences of the regions. Methods. We analyzed a sample of 725 inner HII regions and a sample of 671 outer HII regions, all of them detected and extracted from the observations of a sample of 263 nearby, isolated, spiral galaxies observed by the CALIFA survey. Results. We find that inner HII regions show smaller equivalent widths, greater extinction and luminosities, along with greater values of [NII]λ6583/Hα and [OII]λ3727/[OIII]λ5007 emission-line ratios, indicating higher metallicites and lower ionization parameters. Inner regions have also redder colors and higher photometric and ionizing masses, although Mion/Mphot is slighty higher for the outer regions. Conclusions. This work shows important observational differences between inner and outer HII regions in star forming galaxies not previously studied in detail. These differences indicate that inner regions have more evolved stellar populations and are in a later evolution state with respect to outer regions, which goes in line with the inside-out galaxy formation paradigm.
description: 16 pages
Quantum phase estimation algorithm in presence of static imperfections
Creators: name: Garcia-Mata, Ignacio
name: Shepelyansky, Dima L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study numerically the effects of static imperfections and residual couplings between qubits for the quantum phase estimation algorithm with two qubits. We show that the success probability of the algorithm is affected significantly more by static imperfections than by random noise errors in quantum gates. An improvement of the algorithm accuracy can be reached by application of the Pauli-random-error-correction method (PAREC).
description: 5 pages, 5 figures. Research avilable at http://www.quantware.ups-tlse.fr/
Nucleon form factors induced by isovector and isoscalar axial-vector currents in QCD
Creators: name: Aliev, T. M.
name: Savci, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the most general form of the baryon current, nucleon form factors, induced by isovector and isoscalar axial-vector currents, are studied in the framework of light cone QCD sum rule approach. Comparison of our results on form factors with the existing results and lattice calculations are presented.
description: 17 pages, 10 figures, LaTeX formatted
Sparsest Cut on Bounded Treewidth Graphs: Algorithms and Hardness Results
Creators: name: Gupta, Anupam
name: Kunal  Talwar
name: Witmer, David
Publisher: name: Carnegie Mellon University
Year: 1978
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We give a 2-approximation algorithm for the non-uniform Sparsest Cut problem that runs in time nO(k), where k is the treewidth of the graph. This improves on the previous 22k-approximation in time poly(n) 2O(k) due to Chlamtac et al. [18]. To complement this algorithm, we show the following hardness results: If the non-uniform Sparsest Cut has a ρ-approximation for series-parallel graphs (where ρ ≥ 1), then the MaxCut problem has an algorithm with approximation factor arbitrarily close to 1/ρ. Hence, even for such restricted graphs (which have treewidth 2), the Sparsest Cut problem is NP-hard to approximate better than 17/16 - ε for ε > 0; assuming the Unique Games Conjecture the hardness becomes 1/αGW - ε. For graphs with large (but constant) treewidth, we show a hardness result of 2 - ε assuming the Unique Games Conjecture. Our algorithm rounds a linear program based on (a subset of) the Sherali-Adams lift of the standard Sparsest Cut LP. We show that even for treewidth-2 graphs, the LP has an integrality gap close to 2 even after polynomially many rounds of Sherali-Adams. Hence our approach cannot be improved even on such restricted graphs without using a stronger relaxation.
Farrea occa subsp. mammillata Ijima 1927
Creators: name: Tabachnick, Konstantin R.
name: Menschenina, Dorte Janussen And Larisa L.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Porifera
Hexactinellida
Hexactinosida
Farreidae
Farrea
Farrea occa
Farrea occa mammillata ijima, 1927

description: Farrea occa mammillata Ijima, 1927 (Tab. 15) Material. WAM Z 258 — RV Soela, sta. SO 1/84/82, NNW of Cape Leveque, 13 o 7.20'S 123 o 15.70'E, depth 400 m. WAM (p4135)— RV Soela, sta.?, NNW Cape Leveque, 13°7'S 123 o 15'E, depth 400 m. Description. Body: Fragments of dichotomously branching tubes about 22 mm in diameter; the specimens WAM Z 258 are two fragments 70x50x 60 mm and 50x30x 40 mm; the other specimen is a small lamella­like fragment. The thickness of the wall is about 1.5–3 mm. Spicules: There are no significant differences of spicule forms compared to the primary description by Ijima (1927). The differences in the spicule dimensions seen in Tab.15 are not significant and require no special discussion. Euretidae Zittel, 1877 Genus: Eurete Semper, 1868
description: Published as part of Tabachnick, Konstantin R. & Menschenina, Dorte Janussen And Larisa L., 2008, New Australian Hexactinellida (Porifera) with a revision of Euplectella aspergillum *, pp. 7-68 in Zootaxa 1866 (1) on pages 38-39, DOI: 10.11646/zootaxa.1866.1.3, http://zenodo.org/record/5133305
description: {"references": ["Ijima, I. (1927) The Hexactinellida of the Siboga Expedition. In: Weber, M. (Ed.), Siboga-Expeditie. Uitkomsten op zoologisch, botanisch, oceanographisch en geologisch gebied verzameld in Nederlandsch Oost-lndie 1899 - 1900 aan boord H. M. ' Siboga' Monographie VI. (E. J. Brill: Leiden), i - viii, 1 - 383."]}
Sparse Voronoi Refinement
Creators: name: Benoit  Hudson
name: Miller, Gary L.
name: Phillips, Todd
Publisher: name: Carnegie Mellon University
Year: 1989
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We present a new algorithm, Sparse Voronoi Refinement, that produces a conformal Delaunay mesh in arbitrary dimension with guaranteed mesh size and quality. Our algorithm runs in output-sensitive time O(n log(L/s) + m), with constants depending only on dimension and on prescribed element shape quality bounds. For a large class of inputs, including integer coordinates, this matches the optimal time bound of Θ(n log n + m). Our new technique uses interleaving: we maintain a sparse mesh as we mix the recovery of input features with the addition of Steiner vertices for quality improvement.
Advances in the Physics of Magnetic Skyrmions and Perspective for Technology
Creators: name: Fert, Albert
name: Reyren, Nicolas
name: Cros, Vincent
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Magnetic skyrmions are small swirling topological defects in the magnetization texture stabilized by the protection due to their topology. In most cases they are induced by chiral interactions between atomic spins existing in non-centrosymmetric magnetic compounds or in thin films in which inversion symmetry is broken by the presence of an interface. The skyrmions can be extremely small with diameters in the nanometer range and, importantly, they behave as particles that can be moved, created or annihilated, making them suitable for abacus-type applications in information storage, logic or neuro-inspired technologies. Up to the last years skyrmions were observed only at low temperature (and in most cases under large applied fields) but important efforts of research has been recently devoted to find thin film and multilayered structures in which skyrmions are stabilized above room temperature and manipulated by current. This article focuses on these recent advances on the route to devices prototypes.
description: Published online 13 June 2017 : 17 pages, 8 figures and 2 boxes
title: ADCO, Cartulaire des Dominicains de Dijon (1286), Cart. 221 (H 53), 170 folios, f. 0253
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Cartulaire des Dominicains de Dijon (1286), Archives départementales de la Côte-d'Or, Cart. 221 (H 53), 170 folios. Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire des Dominicains de Dijon (1286), Archives départementales de la Côte-d'Or, Cart. 221 (H 53), 170 folios, f. 0253, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb15250518p
description: Provenance: http://www.idref.fr/02643413X/id
description: Provenance: https://www.geonames.org/6453767
description: Provenance: Dijon
description: Provenance: http://www.wikidata.org/entity/Q7003