cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Master Lovas-Andai and Equivalent Formulas Verifying the $\frac{8}{33}$ Two-Qubit Hilbert-Schmidt Separability Probability and Companion Rational-Valued Conjectures
Creators: name: Slater, Paul B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81P16, 81P40, 81P45, 60B20, 15B52

description: We begin by investigating relationships between two forms of Hilbert-Schmidt two-re[al]bit and two-qubit "separability functions"--those recently advanced by Lovas and Andai (J. Phys. A 50 [2017] 295303), and those earlier presented by Slater (J. Phys. A 40 [2007] 14279). In the Lovas-Andai framework, the independent variable $\varepsilon \in [0,1]$ is the ratio $σ(V)$ of the singular values of the $2 \times 2$ matrix $V=D_2^{1/2} D_1^{-1/2}$ formed from the two $2 \times 2$ diagonal blocks ($D_1, D_2$) of a $4 \times 4$ density matrix $D$. In the Slater setting, the independent variable $μ$ is the diagonal-entry ratio $\sqrt{\frac{ρ_{11} ρ_{44}}{ρ_{22} ρ_{33}}}$--with, of central importance, $μ=\varepsilon$ or $μ=\frac{1}{\varepsilon}$ when both $D_1$ and $D_2$ are themselves diagonal. Lovas and Andai established that their two-rebit "separability function" $\tildeχ_1 (\varepsilon )$ ($\approx \varepsilon$) yields the previously conjectured Hilbert-Schmidt separability probability of $\frac{29}{64}$. We are able, in the Slater framework (using cylindrical algebraic decompositions [CAD] to enforce positivity constraints), to reproduce this result. Further, we newly find its two-qubit (yielding $\frac{8}{33}$), two-quater[nionic]-bit (yielding $\frac{26}{323}$) and "two-octo[nionic]-bit" (yielding $\frac{44482}{4091349}$) counterparts. Then, we find a Lovas-Andai "master formula", $\tilde{χ_d}(\varepsilon)= \frac{\varepsilon ^d Γ(d+1)^3 \,_3\tilde{F}_2\left(-\frac{d}{2},\frac{d}{2},d;\frac{d}{2}+1,\frac{3d}{2}+1;\varepsilon ^2\right)}{Γ\left(\frac{d}{2}+1\right)^2}$ encompassing both even and odd values of $d$. C. Koutschan, then, using his HolonomicFunctions program, develops an order-4 recurrence satisfied by the predictions of the several formulas, establishing their equivalence.
description: 59 pages, 29 figures, retitled, added App. A, presenting previously-obtained (arXiv:0805.0267) analogous ABSOLUTE separability probabilities
Critical Time Crystals in Dipolar Systems
Creators: name: Ho, Wen Wei
name: Choi, Soonwon
name: Lukin, Mikhail D.
name: Abanin, Dmitry A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the quantum dynamics of periodically driven, disordered systems in the presence of long-range interactions. Focusing on the stability of discrete time crystalline (DTC) order in such systems, we use a perturbative procedure to evaluate its lifetime. For 3D systems with dipolar interactions, we show that the corresponding decay is parametrically slow, implying that robust, long-lived DTC order can be obtained. We further predict a sharp crossover from the stable DTC regime into a regime where DTC order is lost, reminiscent of a phase transition. These results are in good agreement with the recent experiments utilizing a dense, dipolar spin ensemble in diamond [Nature 543, 221-225 (2017)]. They demonstrate the existence of a novel, critical DTC regime that is stabilized not by many-body localization but rather by slow, critical dynamics. Our analysis shows that the DTC response can be used as a sensitive probe of nonequilibrium quantum matter.
description: 5 + 4 pages, 3 figures, updated references and corrected some typos, paper updated to match published version
Quantum harmonic oscillator state control in a squeezed Fock basis
Creators: name: Kienzler, D.
name: Lo, H. -Y.
name: Negnevitsky, V.
name: Flühmann, C.
name: Marinelli, M.
name: Home, J. P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate control of a trapped-ion quantum harmonic oscillator in a squeezed Fock state basis, using engineered Hamiltonians analogous to the Jaynes-Cummings and anti-Jaynes-Cummings forms. We demonstrate that for squeezed Fock states with low $n$ the engineered Hamiltonians reproduce the $\sqrt{n}$ scaling of the matrix elements which is typical of Jaynes-Cummings physics, and also examine deviations due to the finite wavelength of our control fields. Starting from a squeezed vacuum state, we apply sequences of alternating transfer pulses which allow us to climb the squeezed Fock state ladder, creating states up to excitations of $n = 6$ with up to 8.7 dB of squeezing, as well as demonstrating superpositions of these states. These techniques offer access to new sets of states of the harmonic oscillator which may be applicable for precision metrology or quantum information science.
description: Added short discussion of possible applications of presented techniques, replaced figures with higher quality versions, typographical corrections
Topology in colored tensor models via crystallization theory
Creators: name: Casali, Maria Rita
name: Cristofori, Paola
name: Dartois, Stephane
name: Grasselli, Luigi
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Combinatorics (math.CO)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 57Q15, 57N10, 57N13, 57M15, 57Q25, 83E99

description: The aim of this paper is twofold. On the one hand, it provides a review of the links between random tensor models, seen as quantum gravity theories, and the PL-manifolds representation by means of edge-colored graphs (crystallization theory). On the other hand, the core of the paper is to establish results about the topological and geometrical properties of the Gurau-degree (or G-degree) of the represented manifolds, in relation with the motivations coming from physics. In fact, the G-degree appears naturally in higher dimensional tensor models as the quantity driving their 1/N expansion, exactly as it happens for the genus of surfaces in the two-dimensional matrix model setting. In particular, the G-degree of PL-manifolds is proved to be finite-to-one in any dimension, while in dimension 3 and 4 a series of classification theorems are obtained for PL-manifolds represented by graphs with a fixed G-degree. All these properties have specific relevance in the tensor models framework, showing a direct fruitful interaction between tensor models and discrete geometry, via crystallization theory.
description: 34 pages, 6 figures; improvements suggested by referee. Published online 8 January 2018 by the Journal of Geometry and Physics
The hair-trigger effect for a class of nonlocal nonlinear equations
Creators: name: Finkelshtein, Dmitri
name: Tkachov, Pasha
Publisher: name: arXiv
Year: 2017
Subjects: subject: Analysis of PDEs (math.AP)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 35B40, 35K57, 47G20, 45G10

description: We prove the hair-trigger effect for a class of nonlocal nonlinear evolution equations on $\mathbb{R}^d$ which have only two constant stationary solutions, $0$ and $θ>0$. The effect consists in that the solution with an initial condition non identical to zero converges (when time goes to $\infty$) to $θ$ locally uniformly in $\mathbb{R}^d$. We find also sufficient conditions for existence, uniqueness and comparison principle in the considered equations.
description: To appear in 'Nonlinearity'
Spatial evolution of human dialects
Creators: name: Burridge, James
Publisher: name: arXiv
Year: 2017
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: The geographical pattern of human dialects is a result of history. Here, we formulate a simple spatial model of language change which shows that the final result of this historical evolution may, to some extent, be predictable. The model shows that the boundaries of language dialect regions are controlled by a length minimizing effect analogous to surface tension, mediated by variations in population density which can induce curvature, and by the shape of coastline or similar borders. The predictability of dialect regions arises because these effects will drive many complex, randomized early states toward one of a smaller number of stable final configurations. The model is able to reproduce observations and predictions of dialectologists. These include dialect continua, isogloss bundling, fanning, the wave-like spread of dialect features from cities, and the impact of human movement on the number of dialects that an area can support. The model also provides an analytical form for Séguy's Curve giving the relationship between geographical and linguistic distance, and a generalisation of the curve to account for the presence of a population centre. A simple modification allows us to analytically characterize the variation of language use by age in an area undergoing linguistic change.
Total rainbow connection of digraphs
Creators: name: Lei, Hui
name: Liu, Henry
name: Magnant, Colton
name: Shi, Yongtang
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: An edge-coloured path is rainbow if its edges have distinct colours. For a connected graph $G$, the rainbow connection number (resp. strong rainbow connection number) of $G$ is the minimum number of colours required to colour the edges of $G$ so that, any two vertices of $G$ are connected by a rainbow path (resp. rainbow geodesic). These two graph parameters were introduced by Chartrand, Johns, McKeon and Zhang in 2008. Krivelevich and Yuster generalised this concept to the vertex-coloured setting. Similarly, Liu, Mestre and Sousa introduced the version which involves total-colourings. Dorbec, Schiermeyer, Sidorowicz and Sopena extended the concept of the rainbow connection to digraphs. In this paper, we consider the (strong) total rainbow connection number of digraphs. Results on the (strong) total rainbow connection number of biorientations of graphs, tournaments and cactus digraphs are presented.
description: 29 pages, 4 figures. arXiv admin note: text overlap with arXiv:1701.04280
Heisenberg and Dzyaloshinskii-Moriya interactions controlled by molecular packing in tri-nuclear organometallic clusters
Creators: name: Powell, B. J.
name: Merino, J.
name: Khosla, A. L.
name: Jacko, A. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Motivated by recent synthetic and theoretical progress we consider magnetism in crystals of multi-nuclear organometallic complexes. We calculate the Heisenberg symmetric exchange and the Dzyaloshinskii-Moriya antisymmetric exchange. We show how, in the absence of spin-orbit coupling, the interplay of electronic correlations and quantum interference leads to a quasi-one dimensional effective spin model in a typical tri-nuclear complex, Mo$_3$S$_7$(dmit)$_3$, despite its underlying three dimensional band structure. We show that both intra- and inter-molecular spin-orbit coupling can cause an effective Dzyaloshinskii-Moriya interaction. Furthermore, we show that, even for an isolated pair of molecules the relative orientation of the molecules controls the nature of the Dzyaloshinskii-Moriya coupling. We show that interference effects also play a crucial role in determining the Dzyaloshinskii-Moriya interaction. Thus, we argue, that multi-nuclear organometallic complexes represent an ideal platform to investigate the effects of Dzyaloshinskii-Moriya interactions on quantum magnets.
description: This update incorporates the corrections described in a recently submitted erratum. Changes are confined to sections IV.A and B. The conclusions of the paper are unchanged. 12 + 4 pages, 9 figures
Dirac $δ$-function potential in quasiposition representation of a minimal-length scenario
Creators: name: Gusson, M. F.
name: Gonçalves, A. Oakes O.
name: Francisco, R. O.
name: Furtado, R. G.
name: Fabris, J. C.
name: Nogueira, J. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A minimal-length scenario can be considered as an effective description of quantum gravity effects. In quantum mechanics the introduction of a minimal length can be accomplished through a generalization of Heisenberg's uncertainty principle. In this scenario, state eigenvectors of the position operator are no longer physical states and the representation in momentum space or a representation in a quasiposition space must be used. In this work, we solve the Schroedinger equation with Dirac $δ$-function potential in quasiposition space. We calculate the bound state energy and the coefficients of reflection and transmission for scattering states. We show that leading corrections are of order of the minimal length $({\sl O}(\sqrtβ))$ and the coefficients of reflection and transmission are no longer the same for the Dirac delta well and barrier as in ordinary quantum mechanics. Furthermore, assuming that the equivalence of the 1s state energy of the hydrogen atom and the bound state energy of the Dirac $δ$-function potential in 1-dim is kept in a minimal-length scenario, we also find that the leading correction term for the ground state energy of the hydrogen atom is of order of the minimal length and $Δx_{min} \le 10^{-25}$ m.
Algebraic $K$-theory, assembly maps, controlled algebra, and trace methods
Creators: name: Reich, Holger
name: Varisco, Marco
Publisher: name: arXiv
Year: 2017
Subjects: subject: K-Theory and Homology (math.KT)
subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 19-02

description: We give a concise introduction to the Farrell-Jones Conjecture in algebraic $K$-theory and to some of its applications. We survey the current status of the conjecture, and we illustrate the two main tools that are used to attack it: controlled algebra and trace methods.
description: Final version, to appear in Space - Time - Matter. Analytic and Geometric Structures (Jochen Br\"uning and Matthias Staudacher, eds.), De Gruyter. v3: updated references, added index, fixed few typos. 44 pages
Comparative evaluation of peri-apical healing in patients with mature teeth using A-PRF+ and i-PRF with apical periodontitis.
Creators: name: DrTejas Suryawanshi
Publisher: name: Zenodo
Year: 2023

description: Background: Delayed Periapical healing is a common finding in treated root canals. Various additive and alterations have been tried in order to hasten the healing process in literature. Platelet concentrates have been studied in dentistry with satisfactory results but the clot like form of these concentrates was not in favour of Endodontist in closed apex cases due to consistency of the concentrates. Recently Injectable PRF (iPRF) is being used in dermatology, Orthopedics due to good amount of growth factors and liquid like consistency. Objectives: To evaluate and compare the efficacy of A-PRF+ and i-PRF in periapical healing of patients with mature permanent teeth radiographically. Materials and Methods: A total of 34 patients with Apical Periodontitis related to permanent central incisors will be included in the study. The Subjects will undergo conventional Access opening, Biomechanical preparation and irrigation. In control group (n=17) freshly made APRF+ will be pushed out of the root apex with help of pluggers. While in the intervention group (n=17) freshly made iPRF will be injected beyond the root apex. MTA barrier of 2 mm will be placed above it and the teeth will be sealed thermoplastically by Gutta percha in both the groups. Intra Oral Periapical Radiographs will be taken T0 (on the day), T1 (6 months) T2 (12 months) to assess Periapical healing post operatively. Expected outcome: iPRF is expected to outperform APRF+ in periapical healing because of the intricate and tapered form of Dental Root Canal Systems liquid consistency of the material may be favorable when compared to semisolid clot like consistency of APRF+. Keywords: Periapical Bone healing, iPRF, APRF+, Apical Periodontitis.
Higher-order moment theories for dilute granular gases of smooth hard-spheres
Creators: name: Gupta, Vinay Kumar
name: Shukla, Priyanka
name: Torrilhon, Manuel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Grad's method of moments is employed to develop higher-order Grad's moment equations---up to first 26-moments---for granular gases within the framework of the (inelastic) Boltzmann equation. The homogeneous cooling state of a freely cooling granular gas is investigated with the Grad's 26-moment equations in a semi-linearized setting and it is shown that the granular temperature in the homogeneous cooling state still decays according to Haff's law while the other higher-order moments decay on a faster time scale. The constitutive relations for stress and heat flux (the Navier--Stokes and Fourier relations) are obtained by performing a Chapman--Enskog-like expansion on the Grad's 26-moment equations and compared with those existing in the literature. The linear stability of the homogeneous cooling state is analyzed through the Grad's 26-moment system and various sub-systems by decomposing them into longitudinal and transverse systems. It is found that one eigenmode in both longitudinal and transverse systems in case of inelastic gases is unstable. By comparing the eigenmodes from various theories, it is established that the 13-moment eigenmode theory predicts that the unstable eigenmode remains unstable for all wavenumbers below a certain coefficient of restitution while any other higher-order moment theory shows that this mode becomes stable above some critical wavenumber for all values of coefficient of restitution. In particular, the Grad's 26-moment theory leads to a smooth profile for the critical wavenumber in contrast to the other considered theories. Furthermore, the critical system size obtained through the Grad 26-moment and existing theories are also in excellent agreement.
description: Accepted for publication in the Journal of Fluid Mechanics
Collégiale de Barjols, présentation par le curé d'oranges destinées à la décoration du reliquaire de saint Marcel.
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Fibre-optic delivery of time and frequency to VLBI station
Creators: name: Krehlik, P.
name: Buczek, Ł.
name: Kołodziej, J.
name: Lipiński, M.
name: Śliwczyński, Ł.
name: Nawrocki, J.
name: Nogaś, P.
name: Marecki, A.
name: Pazderski, E.
name: Ablewski, P.
name: Bober, M.
name: Ciuryło, R.
name: Cygan, A.
name: Lisak, D.
name: Masłowski, P.
name: Morzyński, P.
name: Zawada, M.
name: Campbell, R. M.
name: Pieczerak, J.
name: Binczewski, A.
name: Turza, K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The quality of Very Long Baseline Interferometry (VLBI) radio observations predominantly relies on precise and ultra-stable time and frequency (T&F) standards, usually hydrogen masers (HM), maintained locally at each VLBI station. Here, we present an operational solution in which the VLBI observations are routinely carried out without use of a local HM, but using remote synchronization via a stabilized, long-distance fibre-optic link. The T&F reference signals, traceable to international atomic timescale (TAI), are delivered to the VLBI station from a dedicated timekeeping laboratory. Moreover, we describe a proof-of-concept experiment where the VLBI station is synchronized to a remote strontium optical lattice clock during the observation.
description: 8 pages, 8 figures, matches the version published in A&A, section Astronomical instrumentation
Wirtinger curves, Artin groups, and hypocycloids
Creators: name: Bartolo, Enrique Artal
name: Cogolludo-Agustín, José Ignacio
name: Martín-Morales, Jorge
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 14H30, 57M10, 32S05, 20F36, 14H50

description: The computation of the fundamental group of the complement of an algebraic plane curve has been theoretically solved since Zariski-van Kampen, but actual computations are usually cumbersome. In this work, we describe the notion of Wirtinger presentation of such a group relying on the real picture of the curve and with the same combinatorial flavor as the classical Wirtinger presentation; we determine a significant family of curves for which Wirtinger presentation provides the required fundamental group. The above methods allow us to compute that fundamental group for an infinite subfamily of hypocycloids, relating them with Artin groups.
description: 16 pages, 8 figures, to appear in Revista de la Real Academia de Ciencias Exactas, F\'isicas y Naturales. Serie A. Matem\'aticas
Is the cosmological dark sector better modeled by a generalized Chaplygin gas or by a scalar field?
Creators: name: del Campo, S.
name: Fabris, J. C.
name: Herrera, R.
name: Zimdahl, W.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Both scalar fields and (generalized) Chaplygin gases have been widely used separately to characterize the dark sector of the Universe. Here we investigate the cosmological background dynamics for a mixture of both these components and quantify the fractional abundances that are admitted by observational data from supernovae of type Ia and from the evolution of the Hubble rate. Moreover, we study how the growth rate of (baryonic) matter perturbations is affected by the dark-sector perturbations.
description: 20 pages, 9 figures, substantially revised, section on matter perturbations added, accepted for publication in EPJC
Energy Scale of Lorentz Violation in Rainbow Gravity
Creators: name: Nilsson, Nils A.
name: Dabrowski, Mariusz P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We modify the standard relativistic dispersion relation in a way which breaks Lorentz symmetry - the effect is predicted in a high-energy regime of some modern theories of quantum gravity. We show that it is possible to realise this scenario within the framework of Rainbow Gravity which introduces two new energy-dependent functions $f_1(E)$ and $f_2(E)$ into the dispersion relation. Additionally, we assume that the gravitational constant $G$ and the cosmological constant $Λ$ also depend on energy $E$ and introduce the scaling function $h(E)$ in order to express this dependence. For cosmological applications we specify the functions $f_1$ and $f_2$ in order to fit massless particles which allows us to derive modified cosmological equations. Finally, by using Hubble+SNIa+BAO(BOSS+Lyman $α$)+CMB data, we constrain the energy scale $E_{LV}$ to be at least of the order of $10^{16}$ GeV at $1σ$ which is the GUT scale or even higher $10^{17}$ GeV at $3σ$. Our claim is that this energy can be interpreted as the decoupling scale of massless particles from spacetime Lorentz violating effects.
description: 25 pages, 2 figures, 1 table. Matches version published in Physics of the Dark Universe
$B\to D^{(*)}τν_τ$ in the 2HDM with an anomalous $τ$ coupling
Creators: name: Lee, Jong-Phil
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The puzzle of $R(D^{(*)})$ associated with $B\to D^{(*)}τν$ decay is addressed in the two-HIggs-doublet model. An anomalous coupling of $τ$ to the charged Higgs is introduced to fit the data from BaBar, Belle, and LHCb. It is shown that all of the four types of the model yield similar values of the minimum $χ^2$. Also shown is that the newly normalized $R(D^{(*)})$ with the branching ratio of $B\toτν$ decay exhibits much smaller minimum $χ^2$.
description: 14 pages, 5 tables, 6 figures. More discussions for the model. To appear in PRD
Barjols, domicile de Marius Fabre, crèche de Noël.
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Improve your DMP with expert guidance [Webinar, Presentation]
Creators: name: Hirsch, Lisa
name: Fink, Anne Sofie
name: Mihai, Hannah
Publisher: name: Zenodo
Year: 2023
Subjects: Data management
scientific research
social research
ethics of science
CESSDA
Data Management Expert Guide

description: Need expert help for your Data Management Plan (DMP)? DMPs are not only required by funding agencies but also an important tool to structure the research data management of your project. The DMEG, CESSDA's Data Management Expert Guide, is designed by European experts to help you as social science researchers make your research data Findable, Accessible, Interoperable and Reusable (FAIR). n this event, we will show how the DMEG offers information you need to answer the questions typically occurring in a DMP.
We focus on the research data life cycle, the FAIR principles and will hear about researcher's own experiences with writing a DMP.
Comparison of fibre optic sensor and Borehole Seismometer VSP surveys in a Scientific Borehole - DFDP-2B, Alpine Fault, New Zealand
Creators: name: Constantinou, A
name: Schmitt, DR
name: Kofman, R
name: Kellett, R
name: Eccles, J
name: Lawton, D
name: Bertram, M
name: Hall, K
name: Townend, John
name: Savage, Martha
name: Buske, S
name: Lay, V
name: Gorman, A
Publisher: name: Open Access Te Herenga Waka-Victoria University of Wellington
Year: 2022
Subjects: Uncategorized

description: The DFDP-2B scientific borehole was drilled in 2014 to a depth of 893 m into mylonitic fault rocks adjacent to the Alpine Fault, New Zealand, in the second phase of the Deep Fault Drilling Project (DFDP; Sutherland et al, 2015). The borehole was designed to penetrate the fault zone in order to study the physical and chemical properties of a major tectonic boundary in an active continent-continent collision zone. As part of the project, a slim (BQ) casing string containing optical fibre cable was deployed in the borehole from the surface to its base, on the outside of the main casing. This fibre cable was used to measure temperatures at approximately two-month intervals in the year following the completion of drilling using Distributed Temperature Sensing (DTS) techniques. In January 2016, an active source seismic experiment was conducted around the DFDP-2B borehole, as part of which the optical fibre cable was used to collect acoustic data along the length of the borehole. In addition, a conventional four-level, three-component vertical seismic profile (VSP) string was suspended in the accessible top 400 m of the borehole. Zero-offset and multi-azimuth walkaway VSP surveys were undertaken to image around the borehole and determine the velocity structure and reflectivity characteristics in the hanging-wall of the Alpine Fault.
Existence of a Radner equilibrium in a model with transaction costs
Creators: name: Weston, Kim
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business
subject: 91B25, 91B51

description: We prove the existence of a Radner equilibrium in a model with proportional transaction costs on an infinite time horizon and analyze the effect of transaction costs on the endogenously determined interest rate. Two agents receive exogenous, unspanned income and choose between consumption and investing into an annuity. After establishing the existence of a discrete-time equilibrium, we show that the discrete-time equilibrium converges to a continuous-time equilibrium model. The continuous-time equilibrium provides an explicit formula for the equilibrium interest rate in terms of the transaction cost parameter. We analyze the impact of transaction costs on the equilibrium interest rate and welfare levels.
description: To appear in Mathematics and Financial Economics
$K\to πν\overlineν$ in the MSSM in Light of the $ε^{\prime}_K/ε_K$ Anomaly
Creators: name: Crivellin, Andreas
name: D'Ambrosio, Giancarlo
name: Kitahara, Teppei
name: Nierste, Ulrich
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Standard-Model (SM) prediction for the CP-violating quantity $ε_K^{\prime}/ε_K$ deviates from its measured value by 2.8 $σ$. It has been shown that this tension can be resolved within the Minimal Supersymmetric Standard Model (MSSM) through gluino-squark box diagrams, even if squarks and gluinos are much heavier than 1 TeV. The rare decays $K_L \to π^0ν\barν$ and $K^+ \to π^+ν\barν$ are similarly sensitive to very high mass scales and the first one also measures CP violation. In this article, we analyze the correlations between $ε^{\prime}_K/ε_K$ and $B(K_L \to π^0ν\barν)$ and $B(K^+ \to π^+ν\barν)$ within the MSSM aiming at an explanation of $ε_K^{\prime}/ε_K$ via gluino-squark box diagrams. The dominant MSSM contribution to the $K \to πν\barν$ branching fractions stems from box diagrams with squarks, sleptons, charginos, and neutralinos, and the pattern of the correlations is different from the widely studied $Z$-penguin scenarios. This is interesting in light of future precision measurements by KOTO and NA62 at J-PARC and CERN, respectively. We find $B(K_L \to π^0ν\barν)/B^{SM} (K_L \to π^0ν\barν)\lesssim 2\,(1.2)$ and $B(K^+ \to π^+ν\barν)/B^{SM}(K^+ \to π^+ν\barν) \lesssim 1.4\,(1.1)$, if all squark masses are above 1.5 TeV, gaugino masses obey GUT relations, and if one allows for a fine-tuning at the $1\%\,(10\%)$ level for the gluino mass. Larger values are possible for a tuned CP violating phase. Furthermore, the sign of the MSSM contribution to $ε_K^{\prime}$ imposes a strict correlation between $B(K_L \to π^0ν\barν)$ and the hierarchy between the masses $m_{\bar{U}}$, $m_{\bar{D}}$ of the right-handed up-squark and down-squark: sgn$[B(K_L \to π^0ν\barν)-B^{SM} (K_L \to π^0ν\barν)] = $sgn$(m_{\bar{U}}-m_{\bar{D}}) $.
description: 9 pages, 5 figures; references added, version published in PRD
Note Value Recognition for Piano Transcription Using Markov Random Fields
Creators: name: Nakamura, Eita
name: Yoshii, Kazuyoshi
name: Dixon, Simon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Sound (cs.SD)
subject: FOS: Computer and information sciences

description: This paper presents a statistical method for use in music transcription that can estimate score times of note onsets and offsets from polyphonic MIDI performance signals. Because performed note durations can deviate largely from score-indicated values, previous methods had the problem of not being able to accurately estimate offset score times (or note values) and thus could only output incomplete musical scores. Based on observations that the pitch context and onset score times are influential on the configuration of note values, we construct a context-tree model that provides prior distributions of note values using these features and combine it with a performance model in the framework of Markov random fields. Evaluation results show that our method reduces the average error rate by around 40 percent compared to existing/simple methods. We also confirmed that, in our model, the score model plays a more important role than the performance model, and it automatically captures the voice structure by unsupervised learning.
description: 13 pages, 16 figures, version accepted to IEEE/ACM TASLP, minor revision
Barjols, décoration de la vitrine d'une épicerie en lien avec la fête de la saint Marcel.
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
How do we measure cost-effectiveness of a new medical product?
Creators: name: Harvey, Elizabeth
name: Oliver, Jacqui
name: Lobban, Dawn
Publisher: name: figshare
Year: 2022
Subjects: subject: 111504 Pharmaceutical Sciences
subject: FOS: Clinical medicine

description: There is a need for consistent use of plain language communications to support patient involvement in health economics and outcomes research (HEOR). This summary provides a plain language explanation of the definition and methods used for measuring cost-effectiveness of a new medical product.
How do we measure cost-effectiveness of a new medical product?
Creators: name: Harvey, Elizabeth
name: Lobban, Dawn
name: Oliver, Jacqui
Publisher: name: figshare
Year: 2022
Subjects: subject: 111504 Pharmaceutical Sciences
subject: FOS: Clinical medicine

description: There is a need for consistent use of plain language communications to support patient involvement in health economics and outcomes research (HEOR). This summary provides a plain language explanation of the definition and methods used for measuring cost-effectiveness of a new medical product.
Waist of balls in hyperbolic and spherical spaces
Creators: name: Akopyan, Arseniy
name: Karasev, Roman
Publisher: name: arXiv
Year: 2017
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 49Q20, 53C20, 53C23

description: In this paper we find a tight estimate for Gromov's waist of the balls in spaces of constant curvature, deduce the estimates for the balls in Riemannian manifolds with upper bounds on the curvature ($\mathrm{CAT}(κ)$-spaces), and establish similar result for normed spaces.
Modeling observations of solar coronal mass ejections with heliospheric imagers verified with the Heliophysics System Observatory
Creators: name: Möstl, C.
name: Isavnin, A.
name: Boakes, P. D.
name: Kilpua, E. K. J.
name: Davies, J. A.
name: Harrison, R. A.
name: Barnes, D.
name: Krupar, V.
name: Eastwood, J. P.
name: Good, S. W.
name: Forsyth, R. J.
name: Bothmer, V.
name: Reiss, M. A.
name: Amerstorfer, T.
name: Winslow, R. M.
name: Anderson, B. J.
name: Philpott, L. C.
name: Rodriguez, L.
name: Rouillard, A. P.
name: Gallagher, P. T.
name: Zhang, T. L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We present an advance towards accurately predicting the arrivals of coronal mass ejections (CMEs) at the terrestrial planets, including Earth. For the first time, we are able to assess a CME prediction model using data over 2/3 of a solar cycle of observations with the Heliophysics System Observatory. We validate modeling results of 1337 CMEs observed with the Solar Terrestrial Relations Observatory (STEREO) heliospheric imagers (HI) (science data) from 8 years of observations by 5 in situ observing spacecraft. We use the self-similar expansion model for CME fronts assuming 60 degree longitudinal width, constant speed and constant propagation direction. With these assumptions we find that 23%-35% of all CMEs that were predicted to hit a certain spacecraft lead to clear in situ signatures, so that for 1 correct prediction, 2 to 3 false alarms would have been issued. In addition, we find that the prediction accuracy does not degrade with the HI longitudinal separation from Earth. Predicted arrival times are on average within 2.6 +/- 16.6 hours difference of the in situ arrival time, similar to analytical and numerical modeling, and a true skill statistic of 0.21. We also discuss various factors that may improve the accuracy of space weather forecasting using wide-angle heliospheric imager observations. These results form a first order approximated baseline of the prediction accuracy that is possible with HI and other methods used for data by an operational space weather mission at the Sun-Earth L5 point.
description: 27 pages, 7 figures, 3 tables, accepted for publication in the AGU journal "Space Weather" on 2017 July 1
Feasibility of measuring the magnetic dipole moments of the charm baryons at the LHC using bent crystals
Creators: name: Fomin, A. S.
name: Korchin, A. Yu.
name: Stocchi, A.
name: Bezshyyko, O. A.
name: Burmistrov, L.
name: Fomin, S. P.
name: Kirillin, I. V.
name: Massacrier, L.
name: Natochii, A.
name: Robbe, P.
name: Scandale, W.
name: Shul'ga, N. F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we revisit the idea of measuring the magnetic dipole moments of the charm baryons and, in particular, of charmed Lambda by studying the spin precession induced by the strong effective magnetic field inside the channels of a bent crystal. We present a detailed sensitivity study showing the feasibility of such an experiment at the LHC in the coming years.
description: 13 pages, 11 figures
An Upper Limit on the Mass of a Central Black Hole in the Large Magellanic Cloud from the Stellar Rotation Field
Creators: name: Boyce, H.
name: Lützgendorf, N.
name: van der Marel, R. P.
name: Baumgardt, H.
name: Kissler-Patig, M.
name: Neumayer, N.
name: de Zeeuw, P. T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We constrain the possible presence of a central black hole (BH) in the center of the Large Magellanic Cloud (LMC). This requires spectroscopic measurements over an area of order a square degree, due to the poorly known position of the kinematic center. Such measurements are now possible with the impressive field of view of the Multi Unit Spectroscopic Explorer (MUSE) on the ESO Very Large Telescope. We used the Calcium Triplet (~850nm) spectral lines in many short-exposure MUSE pointings to create a two-dimensional integrated-light line-of-sight velocity map from the ~$10^8$ individual spectra, taking care to identify and remove Galactic foreground populations. The data reveal a clear velocity gradient at an unprecedented spatial resolution of 1 arcmin$^{2}$. We fit kinematic models to arrive at a $3σ$ upper-mass-limit of $10^{7.1}$ M$_{Sun}$ for any central BH - consistent with the known scaling relations for supermassive black holes and their host systems. This adds to the growing body of knowledge on the presence of BHs in low-mass and dwarf galaxies, and their scaling relations with host-galaxy properties, which can shed light on theories of BH growth and host system interaction.
description: 12 pages, 11 figures, 1 table, ApJ - in press
MULTIBAT: Unified workflow for fast electrochemical 3D simulations of lithium-ion cells combining virtual stochastic microstructures, electrochemical degradation models and model order reduction
Creators: name: Feinauer, Julian
name: Hein, Simon
name: Rave, Stephan
name: Schmidt, Sebastian
name: Westhoff, Daniel
name: Zausch, Jochen
name: Iliev, Oleg
name: Latz, Arnulf
name: Ohlberger, Mario
name: Schmidt, Volker
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: Probability (math.PR)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present a simulation workflow for efficient investigations of the interplay between 3D lithium-ion electrode microstructures and electrochemical performance, with emphasis on lithium plating. Our approach addresses several challenges. First, the 3D microstructures of porous electrodes are generated by a parametric stochastic model, in order to significantly reduce the necessity of tomographic imaging. Secondly, we integrate a consistent microscopic, 3D spatially-resolved physical model for the electrochemical behavior of the lithium-ion cells taking lithium plating and stripping into account. This highly non-linear mathematical model is solved numerically on the complex 3D microstructures to compute the transient cell behavior. Due to the complexity of the model and the considerable size of realistic microstructures even a single charging cycle of the battery requires several hours computing time. This renders large scale parameter studies extremely time consuming. Hence, we develop a mathematical model order reduction scheme. We demonstrate how these aspects are integrated into one unified workflow, which is a step towards computer aided engineering for the development of more efficient lithium-ion cells.
Geometry-driven collective ordering of bacterial vortices
Creators: name: Beppu, Kazusa
name: Izri, Ziane
name: Gohya, Jun
name: Eto, Kanta
name: Ichikawa, Masatoshi
name: Maeda, Yusuke T.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Controlling the phases of matter is a challenge that spans from condensed materials to biological systems. Here, by imposing a geometric boundary condition, we study controlled collective motion of Escherichia coli bacteria. A circular microwell isolates a rectified vortex from disordered vortices masked in bulk. For a doublet of microwells, two vortices emerge but their spinning directions show transition from parallel to anti-parallel. A Vicsek-like model for confined self-propelled particles gives the point where two spinning patterns occur in equal probability and one geometric quantity governs the transition as seen in experiments. This mechanism shapes rich patterns including chiral configurations in a quadruplet of microwells, thus revealing a design principle of active vortices.
description: 5 pages, 5 figures. Supplemental materials: 3 pages
From star-disc encounters to numerical solutions for a subset of the restricted three-body problem
Creators: name: Breslau, Andreas
name: Vincke, Kirsten
name: Pfalzner, Susanne
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Various astrophysical processes are known, where the fly-by of a massive object affects matter initially supported against gravity by rotation. Examples are perturbations of galaxies, protoplanetary discs or planetary systems. We approximate such events as subset of the restricted three-body problem by considering only perturbations of non-interacting low-mass objects initially on circular Keplerian orbits. In this paper we present a new parametrisation of the initial conditions of this problem. Under certain conditions the initial positions of the low-mass objects can be specified largely independent of the initial position of the perturber. Exploiting additionally the known scalings of the problem reduces the parameter space of initial conditions for one specific perturbation to two dimensions. To this two-dimensional initial condition space we have related the final properties of the perturbed trajectories of the low-mass objects from our numerical simulations. That way, maps showing the effect of the perturbation on the low-mass objects have been created, which provide a new view on the perturbation process. Comparing the maps for different mass-ratios reveals that the perturbations by low- and high-mass perturbers are dominated by different physical processes. The equal-mass case is a complicated mixture of the other two cases. Since the final properties of trajectories with similar initial conditions are usually also similar, the results of the limited number of integrated trajectories can be generalised to the full presented parameter space by interpolation. Since our results are also unique within the accuracy strived for, they constitute general numerical solutions for this subset of the restricted three-body problem. As such, they can be used to predict the evolution of real physical problems by simple transformations like scaling and without further simulations. (...)
description: 11 pages, 8 figures, + 2 pages appendix, published by A&A; This version includes the Corrigendum (DOI: 10.1051/0004-6361/201526068e) and changes from the editing process
Multiscale modeling of the elastic behavior of architectured and nanostructured Cu-Nb composite wires
Creators: name: Gu, T.
name: Castelnau, O.
name: Forest, S.
name: Hervé-Luanco, E.
name: Lecouturier, F.
name: Proudhon, H.
name: Thilly, L.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanostructured and architectured copper niobium composite wires are excellent candidates for the generation of intense pulsed magnetic fields (>90T) as they combine both high strength and high electrical conductivity. Multi-scaled Cu-Nb wires are fabricated by accumulative drawing and bundling (a severe plastic deformation technique), leading to a multiscale, architectured, and nanostructured microstructure exhibiting a strong fiber crystallographic texture and elongated grain shapes along the wire axis. This paper presents a comprehensive study of the effective elastic behavior of this composite material by three multi-scale models accounting for different microstructural contents: two mean-field models and a full-field finite element model. As the specimens exhibit many characteristic scales, several scale transition steps are carried out iteratively from the grain scale to the macro-scale. The general agreement among the model responses allows suggesting the best strategy to estimate the effective behavior of Cu-Nb wires and save computational time. The importance of crystallographical and morphological textures in various cases is discussed. Finally, the models are validated by available experimental data with a good agreement.
description: This paper has been published on 6 May 2017 in "International Journal of Solids and Structures"