cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the probability density function of baskets
Creators: name: Bayer, Christian
name: Friz, Peter
name: Laurence, Peter
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Mathematics
subject: FOS: Economics and business

description: The state price density of a basket, even under uncorrelated Black-Scholes dynamics, does not allow for a closed from density. (This may be rephrased as statement on the sum of lognormals and is especially annoying for such are used most frequently in Financial and Actuarial Mathematics.) In this note we discuss short time and small volatility expansions, respectively. The method works for general multi-factor models with correlations and leads to the analysis of a system of ordinary (Hamiltonian) differential equations. Surprisingly perhaps, even in two asset Black-Scholes situation (with its flat geometry), the expansion can degenerate at a critical (basket) strike level; a phenomena which seems to have gone unnoticed in the literature to date. Explicit computations relate this to a phase transition from a unique to more than one "most-likely" paths (along which the diffusion, if suitably conditioned, concentrates in the afore-mentioned regimes). This also provides a (quantifiable) understanding of how precisely a presently out-of-money basket option may still end up in-the-money.
description: Appeared in: Large Deviations and Asymptotic Methods in Finance, Springer proceedings in Mathematics & Statistics, Editors: Friz, P.K., Gatheral, J., Gulisashvili, A., Jacquier, A., Teichmann, J., 2015, with minor typos removed
RSS-Based Relative Localization and Tethering for Moving Robots in Unknown Environments
Creators: name: Zickler, Stefan
name: Veloso, Manuela M.
Publisher: name: Carnegie Mellon University
Year: 1988
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The LANdroids project requires robots to autonomously localize, track, and follow (a task also known as tethering) other robots or humans in an unknown environment with limited sensing abilities. In this paper, we present a localization and tethering approach that relies solely on wireless signal strength and robot odometry without requiring any known reference points in the domain. We introduce a data-driven, probabilistic model that maps received signal strength (RSS) values to real-world distance distributions and embed this model in a grid-based localization algorithm that successfully performs the LANdroids tethering task. We furthermore show, that it is possible to improve localization through the addition of a compass sensor and inter-robot information sharing.
title: 01_0834
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/
A Dust spectral energy distribution model with hierarchical Bayesian inference. I. Formalism & benchmarking
Creators: name: Galliano, F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This article presents a new dust SED model, named HerBIE, aimed at eliminating the noise-induced correlations and large scatter obtained when performing least-squares fits. The originality of this code is to apply the hierarchical Bayesian approach to full dust models, including realistic optical properties, stochastic heating and the mixing of physical conditions in the observed regions. We test the performances of our model by applying it to synthetic observations. We explore the impact on the recovered parameters of several effects: signal-to-noise ratio, SED shape, sample size, the presence of intrinsic correlations, the wavelength coverage and the use of different SED model components. We show that this method is very efficient: the recovered parameters are consistently distributed around their true values. We do not find any clear bias, even for the most degenerate parameters, or with extreme signal-to-noise ratios.
description: 28 pages, 19 figures, accepted for publication by MNRAS. Version 2: corrected an improperly displayed mathematical symbol representing the covariance matrix
Greybody factor of scalar fields from black strings
Creators: name: Ahmed, Jamil
name: Saifullah, K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The greybody factor of massless, uncharged scalar fields is studied in the background of cylindrically symmetric spacetimes, in the low-energy approximation. We discuss two cases. In the first case we derive analytical expression for the absorption probability when the spacetime is kinetically coupled with the Einstein tensor. In the second case we do the analysis in the absence of the coupling constant. For this purpose we analyze the wave equation which is obtained from Klein-Gordon equation. The radial part of the wave equation is solved in the form of the hypergeometric function in the near horizon region, whereas in the far region the solution is of the form of Bessel's function. Finally, considering continuity of the wave function we smoothly match the two solutions in the low energy approximation to get the formula for the absorption probability.
RPT : a low overhead single-end probing tool for detecting network congestion positions
Creators: name: Ningning  Hu
name: Steenkiste, Peter
Publisher: name: Carnegie Mellon University
Year: 1998
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "Detecting the points of network congestion is an intriguing research problem, because this information can benefit both regular network users and Internet Service Providers. This is also a highly challenging problem, because the Internet is designed to provide only end-to-end services, and its internals are in principal invisible to end users. Current techniques used to detect bottleneck positions have problems such as high probing overhead and low measurement accuracy. In this paper, we propose using Recursive Packet Trains (RPT) to detect the network congestion position. RPT combines two types of probing packets -- measurement packets and load packets -- in a single probing packet train. The idea is to let load packets generate a packet queue on the router, and to use the measurement packets at the beginning and the end of the train to measure the packet train length. By detecting the changes in the packet train length, we can derive the congestion points of the network path. RPT has the advantages that it only needs single-end control and that it has relatively low overhead. In this paper, we present the algorithm and evaluate it using both testbed experiments and Internet experiments."
Phase structure of twisted Eguchi-Kawai model
Creators: name: Azeyanagi, Tatsuo
name: Hanada, Masanori
name: Hirata, Tomoyoshi
name: Ishikawa, Tomomi
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Twisted Eguchi-Kawai model is a useful tool for studying the large-N gauge theory. It can also provide a nonperturbative formulation of the gauge theory on noncommutative spaces. Recently it was found that the Z_N^4 symmetry in this model, which is crucial for the above applications, can break spontaneously in the intermediate coupling region. In this article, we study the phase structure of this model using the Monte-Carlo simulation. In particular, we elaborately investigate the symmetry breaking point from the weak coupling side. The simulation results show that we cannot take a continuum limit for this model.
description: 17 pages, 7 figures, minor correction
Kinematically Constrained Human-like Bimanual Robot-to-Human Handovers
Creators: name: Göksu, Yasemin
name: Correia, Antonio De Almeida
name: Prasad, Vignesh
name: Kshirsagar, Alap
name: Koert, Dorothea
name: Peters, Jan
name: Chalvatzaki, Georgia
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: Human-Computer Interaction (cs.HC)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Bimanual handovers are crucial for transferring large, deformable or delicate objects. This paper proposes a framework for generating kinematically constrained human-like bimanual robot motions to ensure seamless and natural robot-to-human object handovers. We use a Hidden Semi-Markov Model (HSMM) to reactively generate suitable response trajectories for a robot based on the observed human partner's motion. The trajectories are adapted with task space constraints to ensure accurate handovers. Results from a pilot study show that our approach is perceived as more human--like compared to a baseline Inverse Kinematics approach.
description: Accepted as a Late Breaking Report in The ACM/IEEE International Conference on Human Robot Interaction (HRI) 2024
Quantization coefficients in infinite systems
Creators: name: Mihailescu, Eugen
name: Roychowdhury, Mrinal
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60B05, 28A80

description: We investigate quantization coefficients for self-similar probability measures μon limit sets which are generated by systems S of infinitely many contractive similarities and by probabilistic vectors. The theory of quantization coefficients for infinite systems has significant differences from the finite case. One of these differences is the lack of finite maximal antichains, and the fact that the set of contraction ratios has zero infimum; another difference resides in the specific geometry of the non-compact limit set J of S. We prove that, for each r \in (0,1), there exists a unique positive number κ_r, so that for arbitrary κ< κ_r < κ', the κ-dimensional lower quantization coefficient of order r of μis positive, and we also give estimates for the κ'-dimensional upper quantization coefficient of order r of μ. In particular, it follows that the quantization dimension of order r of μexists, and it is equal to κ_r. The above results allow then to estimate the asymptotic errors of approximating the measure μin the L_r-Kantorovich-Wasserstein metric, with discrete measures supported on finitely many points.
Routing Without Regret: On Convergence to Nash Equilibria of Regret-Minimizing Algorithms in Routing Games
Creators: name: Avrim  Blum
name: Eyel  Even-Dar
name: Ligett, Katrina
Publisher: name: Carnegie Mellon University
Year: 1971
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: There has been substantial work developing simple, efficient no-regret algorithms for a wide class of repeated decision-making problems including online routing. These are adaptive strategies an individual can use that give strong guarantees on performance even in adversarially-changing environments. There has also been substantial work on analyzing properties of Nash equilibria in routing games. In this paper, we consider the question: if each player in a routing game uses a noregret strategy, will behavior converge to a Nash equilibrium? In general games the answer to this question is known to be no in a strong sense, but routing games have substantially more structure. In this paper we show that in the Wardrop setting of multicommodity flow and infinitesimal agents, behavior will approach Nash equilibrium (formally, on most days, the cost of the flow will be close to the cost of the cheapest paths possible given that flow) at a rate that depends polynomially on the players’ regret bounds and the maximum slope of any latency function. We also show that price-of-anarchy results may be applied to these approximate equilibria, and also consider the finitesize (non-infinitesimal) load-balancing model of Azar [2]. Our nonatomic results also apply to a more general class of games known as congestion games.
Shubnikov-de Haas oscillations of biaxial-strain-tuned superconductors in pulsed magnetic field up to 60 T
Creators: name: Yip, King Yau
name: Wang, Lingfei
name: Poon, Tsz Fung
name: Yu, Kai Ham
name: Lam, Siu Tung
name: Lai, Kwing To
name: Singleton, John
name: Balakirev, Fedor F.
name: Goh, Swee K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Two-dimensional (2D) materials have gained increasing prominence not only in fundamental research but also in daily applications. However, to fully harness their potential, it is crucial to optimize their properties with an external parameter and track the electronic structure simultaneously. Magnetotransport over a wide magnetic field range is a powerful method to probe the electronic structure and, for metallic 2D materials, quantum oscillations superimposed on the transport signals encode Fermi surface parameters. In this manuscript, we utilize biaxial strain as an external tuning parameter and investigate the effects of strain on the electronic properties of two quasi-2D superconductors, MoTe$_2$ and RbV$_3$Sb$_5$, by measuring their magnetoresistance in pulsed magnetic fields up to 60 T. With a careful selection of insulating substrates, we demonstrate the possibility of both the compressive and tensile biaxial strain, imposed on MoTe$_2$ and RbV$_3$Sb$_5$, respectively. For both systems, the applied strain has led to superconducting critical temperature enhancement compared to their free-standing counterparts, proving the effectiveness of this biaxial strain method at cryogenic temperatures. Clear quantum oscillations in the magnetoresistance -- the Shubnikov-de Haas (SdH) effect -- are obtained in both samples. In strained MoTe$_2$, the magnetoresistance exhibits a nearly quadratic dependence on the magnetic field and remains non-saturating even at the highest field. Whereas in strained RbV$_3$Sb$_5$, two SdH frequencies showed a substantial enhancement in effective mass values, hinting at a possible enhancement of charge fluctuations. Our results demonstrate that combining biaxial strain and pulsed magnetic field paves the way for studying 2D materials under unprecedented conditions.
description: 6 pages, 4 figures
Tsunamis and Ripples: Effects of Scalar Waves on Screening in the Milky Way
Creators: name: Ip, Hiu Yan Sam
name: Schmidt, Fabian
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Modified gravity models which include an additional propagating degree of freedom are typically studied in the quasi-static limit, where the propagation is neglected, and the wave equation of the field is replaced with a Poisson-type equation. Recently, it has been proposed that, in the context of models with symmetron- or chameleon-type screening, scalar waves from astrophysical or cosmological events could have a significant effect on the screening of the Solar System, and hence invalidate these models. Here, we quantitatively investigate the impact of scalar waves by solving the full field equation linearised in the wave amplitude. In the symmetron case, we find that the quantitative effect of waves is generally negligible, even for the largest amplitudes of waves that are physically expected. In order to spoil the screening in the Solar System, a significant amount of wave energy would have to be focused on the Solar System by arranging the sources in a spherical shell centred on Earth. In the chameleon case, we are able to rule out any significant effects of propagating waves on Solar System tests.
description: 11 pages, 2 figures
Multi-Spacecraft Observations of the Rotation and Non-Radial Motion of a CME Flux Rope causing an intense geomagnetic storm
Creators: name: Liu, Yi A.
name: Liu, Ying D.
name: Hu, Huidong
name: Wang, Rui
name: Zhao, Xiaowei
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present an investigation of the rotation and non-radial motion of a coronal mass ejection (CME) from AR 12468 on 2015 December 16 using observations from SDO, SOHO, STEREO A and Wind. The EUV and HMI observations of the source region show that the associated magnetic flux rope (MFR) axis pointed to the east before the eruption. We use a nonlinear fore-free field (NLFFF) extrapolation to determine the configuration of the coronal magnetic field and calculate the magnetic energy density distributions at different heights. The distribution of the magnetic energy density shows a strong gradient toward the northeast. The propagation direction of the CME from a Graduated Cylindrical Shell (GCS) modeling deviates from the radial direction of the source region by about 45 degr in longitude and about 30 degr in latitude, which is consistent with the gradient of the magnetic energy distribution around the AR.The MFR axis determined by the GCS modeling points southward, which has rotated counterclockwise by about 95 degr compared with the orientation of the MFR in the low corona.The MFR reconstructed by a Grad-Shafranov (GS) method at 1 AU has almost the same orientation as the MFR from the GCS modeling, which indicates that the MFR rotation occurred in the low corona. It is the rotation of the MFR that caused the intense geomagnetic storm with the minimum Dst of -155 nT. These results suggest that the coronal magnetic field surrounding the MFR plays a crucial role in the MFR rotation and propagation direction.
description: accepted for publication in APJ
Transition State Clustering for Interaction Segmentation and Learning
Creators: name: Hahne, Fabian
name: Prasad, Vignesh
name: Kshirsagar, Alap
name: Koert, Dorothea
name: Stock-Homburg, Ruth Maria
name: Peters, Jan
name: Chalvatzaki, Georgia
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Hidden Markov Models with an underlying Mixture of Gaussian structure have proven effective in learning Human-Robot Interactions from demonstrations for various interactive tasks via Gaussian Mixture Regression. However, a mismatch occurs when segmenting the interaction using only the observed state of the human compared to the joint state of the human and the robot. To enhance this underlying segmentation and subsequently the predictive abilities of such Gaussian Mixture-based approaches, we take a hierarchical approach by learning an additional mixture distribution on the states at the transition boundary. This helps prevent misclassifications that usually occur in such states. We find that our framework improves the performance of the underlying Gaussian Mixture-based approach, which we evaluate on various interactive tasks such as handshaking and fistbumps.
description: Accepted as a Late Breaking Report in The ACM/IEEE International Conference on Human Robot Interaction (HRI) 2024
Creating "an oasis of hope, inclusion and connection": students and stakeholders' experiences of a pilot Recovery College
Creators: name: Doroud, Nastaran
name: King, Alicia
name: Zirnsak, Tessa-May
name: Minshall, Catherine
name: Hall, Teresa
name: Jordan, Helen
name: Brophy, Lisa
Publisher: name: La Trobe
Year: 2024
Subjects: classificationCode: 3202
subject: Clinical sciences
classificationCode: 4203
subject: Health services and systems
classificationCode: 5203
subject: Clinical and health psychology

description: Background: Recovery Colleges are an innovative approach to promoting personal recovery for people experiencing mental illness. Aims: This study was to explore experiences of students, supporters, staff, educators and external stakeholders (i.e. partner organisations) of a pilot Recovery College in the Australian Capital Territory (ACTRC), and the impact of participation in the College for students and supporters. Methods: ACTRC students, supporters, staff and educators, and external stakeholders were invited to participate in a mixed-method evaluation via an online survey, interviews and/or focus groups. The survey included questions regarding experiences and recovery-orientation of the College environment, and for students and supporters only, satisfaction with the College. Qualitative data from interviews and focus groups was inductively coded, thematically analysed and triangulated with survey responses. Results: The findings suggest that the ACTRC provides a safe space, promotes meaningful connections within and beyond the college, and offers steppingstones supporting recovery and growth. Participants spoke positively about cross institutional partnerships and collaboration with several organisations within the ACT. Conclusions: This evaluation reiterates the role of Recovery Colleges as an innovative approach to promoting personal recovery for people living with mental illness. Adequate resourcing and collaboration are essential in realising the value of co-production whilst ensuring sustainability.
Calculations of long-range three-body interactions for He($n_0\,^λS$)-He($n_0\,^λS$)-He($n_0^{\prime}\,^λL$)
Creators: name: Yan, Pei-Gen
name: Tang, Li-Yan
name: Yan, Zong-Chao
name: Babb, James F
Publisher: name: arXiv
Year: 2017
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We theoretically investigate long-range interactions between an excited $L$ state He atom and two identical $S$ state He atoms, for the cases of the three atoms all in spin singlet states or all in spin triplet states, denoted by He($n_0\,^λS$)-He($n_0\,^λS$)-He($n_0^{\prime}\,^λL$), with $n_0$ and $n_0'$ principal quantum numbers, $λ=1$ or 3 the spin multiplicity, and $L$ the orbital angular momentum of a He atom. Using degenerate perturbation theory for the energies up to second-order, we evaluate the coefficients $C_3$ of the first order dipolar interactions and the coefficients $C_6$ and $C_8$ of the second order additive and nonadditive interactions. Both the dipolar and dispersion interaction coefficients, for these three-body degenerate systems, show dependences on the geometrical configurations of the three atoms. The nonadditive interactions start to appear in second-order. To demonstrate the results and for applications, the obtained coefficients $C_n$ are evaluated with highly accurate variationally-generated nonrelativistic wave functions in Hylleraas coordinates for He($1\,^{1}S$)-He($1\,^{1}S$)-He($2\,^{1}S$), He${(1\,^{1}S)}$-He${(1\,^{1}S)}$-He${(2\,^{1}P)}$, He${(2\,^{1}S)}$-He${(2\,^{1}S)}$-He${(2\,^{1}P)}$, and He${(2\,^{3}S)}$-He${(2\,^{3}S)}$-He${(2\,^{3}P)}$. The calculations are given for three like-nuclei for the cases of hypothetical infinite mass He nuclei, and of real finite mass $^4{}$He or $^3{}$He nuclei. The special cases of the three atoms in equilateral triangle configurations are explored in detail, and for the cases where one of the atoms is in a $P$ state, we also present results for the atoms in an isosceles right triangle configuration or in an equally spaced co-linear configuration. The results can be applied to construct potential energy surfaces for three helium atom systems.
description: 42 pages, 10 figures. arXiv admin note: text overlap with arXiv:1608.01098
Recent studies of Charmonium Decays at CLEO
Creators: name: Muramatsu, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Recent results on Charmonium decays are reviewed which includes two-, three- and four-body decays of $χ_{cJ}$ states, observations of Y(4260) through $ππJ/ψ$ transitions, precise measurements of $M(D^0)$, $M(η)$ as well as $\mathcal{B}(η\to X)$.
description: To be published in the proceedings of CHARM07, Ithaca, NY, August 2007, eConf C070805
Hypercompe leucarctioides
Creators: name: Vincent, Benoît
name: Laguerre, Michel
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Arctiidae
Hypercompe
Hypercompe leucarctioides

description: Hypercompe leucarctioides (Grote & Robinson, 1867)
Ecpantheria leucarctioides Grote & Robinson, 1867: 369.
Hypercompe leucarctioides – Watson & Goodger 1986: 30.
Ecpantheria trebula Druce, 1884: 97, synonymie dans Hampson 1901: 371.
Hypercompe leucarctioides aberration trebula – Watson & Goodger 1986: 30.
Ecpantheria tenella Edwards, 1884: 15, synonymie dans Hampson 1901: 371.
Hypercompe tenella – Watson & Goodger 1986: 30.
SPÉCIMENS SÉQUENCÉS. — Hypercompe leucarctioides: ARCTA 625-07, ARCTA012-07.
Hypercompe trebula: ARCTA 612-07, ARCTA615-07. Hypercompe tenella: ARCTA 660-07, ARCTA661-07, ARCTA614-07.
ARGUMENTAIRE TAXONOMIQUE
Ecpantheria leucarctioides Grote & Robinson, 1867 est décrit sur une série indéterminée de syntypes de l’État de Vera Cruz au Mexique.Les syntypes n’ont pu être localisés. Heureusement, l’excellente figuration d’un couple dans la publication originale ne laisse pas de doute quant à l’identification de l’espèce. Druce (1884) décrit de l’État du Quetzalténango au Guatemala une espèce très proche sous le nom de Ecpantheria trebula sur une série indéterminée de syntypes dont un mâle étiqueté « TYPE » conservé au BMNH. Malgré quelques différences dans l’habitus, les deux formes sont indéniablement très proches morphologiquement. L’analyse des séquences de sept spécimens (cinq provenant du Guatemala et deux du Mexique) ne montre qu’une trop faible différence (en moyenne 0,7 % avec un maximum à 1,2 %) ne justifiant pas la séparation de ces taxa.
description: Published as part of Vincent, Benoît & Laguerre, Michel, 2013, Changements nomenclaturaux chez les Arctiinae nÉotropicales (Insecta, Lepidoptera, Erebidae); seconde partie, pp. 425-455 in Zoosystema 35 (3) on page 446, DOI: 10.5252/z2013n3a5, http://zenodo.org/record/5165260
Rounding Lasserre SDPs using column selection and spectrum-based approximation schemes for graph partitioning and Quadratic IPs
Creators: name: Venkatesan  Guruswami
name: Sinop, Ali Kemal
Publisher: name: Carnegie Mellon University
Year: 2000
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We present an approximation scheme for minimizing certain Quadratic Integer Programming problems with positive semidefinite objective functions and global linear constraints. This framework includes well known graph problems such as Minimum graph bisection, Edge expansion, Sparsest Cut, and Small Set expansion, as well as the Unique Games problem. These problems are notorious for the existence of huge gaps between the known algorithmic results and NP-hardness results. Our algorithm is based on rounding semidefinite programs from the Lasserre hierarchy, and the analysis uses bounds for low-rank approximations of a matrix in Frobenius norm using columns of the matrix.
For all the above graph problems, we give an algorithm running in time nO(r/ϵ2) with approximation ratio 1+ϵmin{1,λr}, where λr is the r'th smallest eigenvalue of the normalized graph Laplacian L. In the case of graph bisection and small set expansion, the number of vertices in the cut is within lower-order terms of the stipulated bound. Our results imply (1+O(ϵ)) factor approximation in time nO(r∗/ϵ2) where is the number of eigenvalues of Lsmaller than 1−ϵ (for variants of sparsest cut, λr∗≥OPT/ϵ also suffices, and as OPT is usually o(1) on interesting instances of these problems, this requirement on r∗ is typically weaker). For Unique Games, we give a factor (1+2+ϵλr) approximation for minimizing the number of unsatisfied constraints in nO(r/ϵ) time, improving upon an earlier bound for solving Unique Games on expanders. We also give an algorithm for independent sets in graphs that performs well when the Laplacian does not have too many eigenvalues bigger than 1+o(1).
Analytic results for planar three-loop four-point integrals from a Knizhnik-Zamolodchikov equation
Creators: name: Henn, Johannes M.
name: Smirnov, Alexander V.
name: Smirnov, Vladimir A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We apply a recently suggested new strategy to solve differential equations for master integrals for families of Feynman integrals. After a set of master integrals has been found using the integration-by-parts method, the crucial point of this strategy is to introduce a new basis where all master integrals are pure functions of uniform transcendentality. In this paper, we apply this method to all planar three-loop four-point massless on-shell master integrals. We explicitly find such a basis, and show that the differential equations are of the Knizhnik-Zamolodchikov type. We explain how to solve the latter to all orders in the dimensional regularization parameter epsilon, including all boundary constants, in a purely algebraic way. The solution is expressed in terms of harmonic polylogarithms. We explicitly write out the Laurent expansion in epsilon for all master integrals up to weight six.
description: 26 pages, 6 figures; v2: minor changes, typos in Eqs. (2.34) and (2.35) fixed
title: ADCO, Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Cart. 173 (11 H 939), 226 folios, f. 0077
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: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire

description: Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 173 (11 H 939), 226 folios, f. 0077, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour la grange et seigneurie d'Ouges (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 173 (11 H 939), 226 folios, f. 0077, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
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
description: Provenance: https://www.geonames.org/3024876
Standing Shocks in Magnetized Dissipative Accretion Flow around Black Holes
Creators: name: Sarkar, Biplob
name: Das, Santabrata
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We explore the global structure of the accretion flow around a Schwarzschild black hole where the accretion disc is threaded by toroidal magnetic fields. The accretion flow is optically thin and advection dominated. Synchrotron radiation is considered to be the active cooling mechanism in the flow. With this, we obtain the global transonic accretion solutions and show that centrifugal barrier in the rotating magnetized accretion flow causes a discontinuous transition of the flow variables in the form of shock waves. The shock properties and the dynamics of the post-shock corona are affected by the flow parameters such as viscosity, cooling rate and strength of the magnetic fields. The shock properties are investigated against these flow parameters. We further show that for given set of boundary parameters at the outer edge of the disc, accretion flow around a black hole admits shock when the flow parameters are tuned for a considerable range.
description: 12 pages, 5 figures, Accepted for publication in Journal of Astrophysics and Astronomy. arXiv admin note: text overlap with arXiv:1710.01112
Adsorption isotherms of charged nanoparticles
Creators: name: Santos, Alexandre P. dos
name: Bakhshandeh, Amin
name: Diehl, Alexandre
name: Levin, Yan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present theory and simulations which allow us to quantitatively calculate the amount of surface adsorption excess of charged nanoparticles onto a charged surface. The theory is very accurate for weakly charged nanoparticles and can be used at physiological concentrations of salt. We have also developed an efficient simulation algorithm which can be used for dilute suspensions of nanoparticles of any charge, even at very large salt concentrations. With the help of the new simulation method, we are able to efficiently calculate the adsorption isotherms of highly charged nanoparticles in suspensions containing multivalent ions, for which there are no accurate theoretical methods available.
Scanning SQUID study of ferromagnetism and superconductivity in infinite-layer nickelates
Creators: name: Shi, Ruby A.
name: Wang, Bai Yang
name: Iguchi, Yusuke
name: Osada, Motoki
name: Lee, Kyuho
name: Goodge, Berit H.
name: Kourkoutis, Lena F.
name: Hwang, Harold Y.
name: Moler, Kathryn A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Infinite-layer nickelates $R_{1-x}$Sr$_{x}$NiO$_{2}$ ($R$ = La, Pr, Nd) are a class of superconductors with structural similarities to cuprates. Although long-range antiferromagnetic order has not been observed for these materials, magnetic effects such as antiferromagnetic spin fluctuations and spin-glass behavior have been reported. Different experiments have drawn different conclusions about whether the pairing symmetry is $s$- or $d$ wave. In this paper, we applied a scanning superconducting quantum interference device (SQUID) to probe the magnetic behavior of film samples of three infinite-layer nickelates (La$_{0.85}$Sr$_{0.15}$NiO$_2$, Pr$_{0.8}$Sr$_{0.2}$NiO$_2$, and Nd$_{0.775}$Sr$_{0.225}$NiO$_2$) grown on SrTiO$_3$ (STO), each with a nominal thickness of 20 unit cells. In all three films, we observed a ferromagnetic background. We also measured the magnetic susceptibility above the superconducting critical temperature in Pr$_{0.8}$Sr$_{0.2}$NiO$_2$ and La$_{0.85}$Sr$_{0.15}$NiO$_2$ and identified a non-Curie-Weiss dynamic susceptibility. Both magnetic features are likely due to NiO$_x$ nanoparticles. Additionally, we investigated superconductivity in Pr$_{0.8}$Sr$_{0.2}$NiO$_2$ and Nd$_{0.775}$Sr$_{0.225}$NiO$_2$, which exhibited inhomogeneous diamagnetic screening. The superfluid density inferred from the diamagnetic susceptibility in relatively homogeneous regions shows $T$-linear behavior in both samples. Finally, we observed superconducting vortices in Nd$_{0.775}$Sr$_{0.225}$NiO$_2$. We determined a Pearl length of 330 $\upmu$m for Nd$_{0.775}$Sr$_{0.225}$NiO$_2$ at 300 mK both from the strength of the diamagnetism and from the size and shape of the vortices. These results highlight the importance of considering NiO$_x$ particles when interpreting experimental results for these films.
Optimal Discrete Spatial Compression for Beamspace Massive MIMO Signals
Creators: name: Jiang, Zhiyuan
name: Zhou, Sheng
name: Niu, Zhisheng
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Deploying massive number of antennas at the base station side can boost the cellular system performance dramatically. Meanwhile, it however involves significant additional radio-frequency (RF) front-end complexity, hardware cost and power consumption. To address this issue, the beamspace-multiple-input-multiple-output (beamspace-MIMO) based approach is considered as a promising solution. In this paper, we first show that the traditional beamspace-MIMO suffers from spatial power leakage and imperfect channel statistics estimation. A beam combination module is hence proposed, which consists of a small number (compared with the number of antenna elements) of low-resolution (possibly one-bit) digital (discrete) phase shifters after the beamspace transformation to further compress the beamspace signal dimensionality, such that the number of RF chains can be reduced beyond beamspace transformation and beam selection. The optimum discrete beam combination weights for the uplink are obtained based on the branch-and-bound (BB) approach. The key to the BB-based solution is to solve the embodied sub-problem, whose solution is derived in a closed-form. Based on the solution, a sequential greedy beam combination scheme with linear-complexity (w.r.t. the number of beams in the beamspace) is proposed. Link-level simulation results based on realistic channel models and long-term-evolution (LTE) parameters are presented which show that the proposed schemes can reduce the number of RF chains by up to $25\%$ with a one-bit digital phase-shifter-network.
description: Submitted to IEEE Trans. Signal Process
Almost Kaehler Ricci Flows and Einstein and Lagrange-Finsler Structures on Lie Algebroids
Creators: name: Vacaru, Sergiu I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53C44, 53D15, 37J60, 53D17, 70G45, 70S05, 83D99, 53B40, 53B35

description: In this work we investigate Ricci flows of almost Kaehler structures on Lie algebroids when the fundamental geometric objects are completely determined by (semi) Riemannian metrics, or effective) regular generating Lagrange/ Finsler, functions. There are constructed canonical almost symplectic connections for which the geometric flows can be represented as gradient ones and characterized by nonholonomic deformations of Grigory Perelman's functionals. The first goal of this paper is to define such thermodynamical type values and derive almost Kähler - Ricci geometric evolution equations. The second goal is to study how fixed Lie algebroid, i.e. Ricci soliton, configurations can be constructed for Riemannian manifolds and/or (co) tangent bundles endowed with nonholonomic distributions modelling (generalized) Einstein or Finsler - Cartan spaces. Finally, there are provided some examples of generic off-diagonal solutions for Lie algebroid type Ricci solitons and (effective) Einstein and Lagrange-Finsler algebroids.
description: This version is accepted by Mediterranian J. Math. and modified following editor/referee's requests. File latex2e 11pt generates 29 pages
Rotation distance, triangulations, and hyperbolic geometry
Creators: name: Sleator, Daniel D.(Daniel Dominic)
name: Tarjan, Robert E(Robert Endre)
name: Thurston, William P.
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Computer Science Department
Wizard of Oz Experimentation for Language Technology Applications: Challenges and Tools
Creators: name: Schlögl, Stephan
name: Doherty, Gavin
name: Luz, Saturnino
Publisher: name: arXiv
Year: 2024
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Wizard of OZ (WOZ) is a well-established method for simulating the functionality and user experience of future systems. Using a human wizard to mimic certain operations of a potential system is particularly useful in situations where extensive engineering effort would otherwise be needed to explore the design possibilities offered by such operations. The WOZ method has been widely used in connection with speech and language technologies, but advances in sensor technology and pattern recognition as well as new application areas such as human-robot interaction have made it increasingly relevant to the design of a wider range of interactive systems. In such cases achieving acceptable performance at the user interface level often hinges on resource intensive improvements such as domain tuning, which are better done once the overall design is relatively stable. While WOZ is recognised as a valuable prototyping technique, surprisingly little effort has been put into exploring it from a methodological point of view. Starting from a survey of the literature, this paper presents a systematic investigation and analysis of the design space for WOZ for language technology applications, and proposes a generic architecture for tool support that supports the integration of components for speech recognition and synthesis as well as for machine translation. This architecture is instantiated in WebWOZ - a new web-based open-source WOZ prototyping platform. The viability of generic support is explored empirically through a series of evaluations. Researchers from a variety of backgrounds were able to create experiments, independent of their previous experience with WOZ. The approach was further validated through a number of real experiments, which also helped to identify a number of possibilities for additional support, and flagged potential issues relating to consistency in Wizard performance.
description: 28 pages
Rog-O-Matic : a belligerent expert system
Creators: name: Mauldin, Michael L.
name: Jacobson, Guy
name: Appel, Andrew W.
name: Hamey, Leonard G. C.
Publisher: name: Carnegie Mellon University
Year: 1991
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Computer Science Department
Doughnut shaped emission from vertical organic nanowire coupled to thin plasmonic film
Creators: name: Vasista, Adarsh B.
name: Tripathi, Ravi P. N.
name: Chaubey, Shailendra K.
name: Tiwari, Sunny
name: Kumar, G. V. Pavan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Vertical nanowires facilitate an innovative mechanism to channel the optical field in the orthogonal direction and act as a nanoscale light source. Subwavelength, vertically oriented nanowire platforms, both of plasmonic and semiconducting variety can facilitate interesting far field emission profiles and potentially carry orbital angular momentum states. Motivated by these prospects, in this letter, we show how a hybrid plasmonic - organic platform can be harnessed to engineer far field radiation. The system that we have employed is an organic nanowire made of diaminoanthroquinone grown on a plasmonic gold film. We experimentally and numerically studied angular distribution of surface plasmon polariton mediated emission from a single, vertical organic nanowire by utilising evanescent excitation and Fourier plane microscopy. Photoluminescence and elastic scattering from single nanowire was analysed individually in terms of in plane momentum states of the outcoupled photons. We found that the emission is doughnut shaped in both photoluminescence and elastic scattering regimes. We anticipate that the discussed results can be relevant in designing efficient, polariton-mediated nanoscale photon sources which can carry orbital angular momentum states.
description: Optics Letters (accepted), 2018
Photoionization accompanied by excitation at intermediate photon energies
Creators: name: Drukarev, E. G.
name: Liverts, E. Z.
name: Amusia, M. Ya.
name: Krivec, R.
name: Mandelzweig, V. B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We calculate the photoionization with excitation-to photoionization ratios for atomic helium and heliumlike ions at intermediate values of the photon energies. The final state interactions between the electrons are included in the lowest order of their Sommerfeld parameter. This enables us, in contrast to purely numerical calculations to investigate the roles of various mechanisms contributing beyond the high energy limit. The system of the two bound electrons is described by the functions obtained by the Correlation Function Hyperspherical Harmonic Method. For the case of heliumlike ions we present the high energy limits as power expansion in inverse charge of the nucleus. We analyse the role of excitation of states with the nonzero orbital momenta.
description: 3 figures