cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Photon mass drag and the momentum of light in a medium
Creators: name: Partanen, Mikko
name: Häyrynen, Teppo
name: Oksanen, Jani
name: Tulkki, Jukka
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Conventional theories of electromagnetic waves in a medium assume that the energy propagating with the light pulse in the medium is entirely carried by the field. Thus, the possibility that the optical force field of the light pulse would drive forward an atomic mass density wave (MDW) and the related kinetic and elastic energies is neglected. In this work, we present foundations of a covariant theory of light propagation in a medium by considering a light wave simultaneously with the dynamics of the medium atoms driven by optoelastic forces between the induced dipoles and the electromagnetic field. We prove that the transfer of mass as MDW associated with the light pulse, the photon mass drag effect, gives an essential contribution to the total momentum of the light pulse, which becomes equal to the Minkowski momentum. Thus, our theory also resolves the centenary Abraham-Minkowski controversy of the momentum of light in a nondispersive medium. We derive the photon mass drag effect using two independent but complementary covariant models. In the mass-polariton (MP) quasiparticle approach, we consider the light pulse as a coupled state between the photon and matter, isolated from the rest of the medium. The momentum and the transferred mass of MP follow unambiguously from the Lorentz invariance and the fundamental conservation laws of nature. To enable the calculation of the mass and momentum distribution of a light pulse, we have also generalized the electrodynamics of continuous media to account for the optoelastic dynamics of the medium. In this optoelastic continuum dynamics (OCD) approach, we obtain a numerically accurate solution of the Newtonian continuum dynamics of the medium when the light pulse is propagating in it. We finally discuss a possibility of an optical waveguide setup for experimental measurement of the transferred mass of the light pulse.
Local vs. global temperature under a positive curvature condition
Creators: name: Sanders, Ko
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 81T20, 53C80

description: For a massless free scalar field in a globally hyperbolic space-time we compare the global temperature T, defined for the KMS states $ω^T$, with the local temperature $T_ω(x)$ introduced by Buchholz and Schlemmer. We prove the following claims: (1) Whenever $T_{ω^T}(x)$ is defined, it is a continuous, monotonically increasing function of T at every point x. (2) $T_ω(x)$ is defined when the space-time is ultra-static with compact Cauchy surface and non-trivial scalar curvature $R\ge 0$, $ω$ is stationary and a few other assumptions are satisfied. Our proof of (2) relies on the positive mass theorem. We discuss the necessity of its assumptions, providing counter-examples in an ultra-static space-time with non-compact Cauchy surface and R<0 somewhere. We interpret the result in terms of a violation of the weak energy condition in the background space-time.
description: 19 pages; v2 accepted for publication
Improved convergence rates for Lasserre-type hierarchies of upper bounds for box-constrained polynomial optimization
Creators: name: de Klerk, Etienne
name: Hess, Roxana
name: Laurent, Monique
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C60, 90C56, 90C26

description: We consider the problem of minimizing a given $n$-variate polynomial $f$ over the hypercube $[-1,1]^n$. An idea introduced by Lasserre, is to find a probability distribution on $[-1,1]^n$ with polynomial density function $h$ (of given degree $r$) that minimizes the expectation $\int_{[-1,1]^n} f(x)h(x)dμ(x)$, where $dμ(x)$ is a fixed, finite Borel measure supported on $[-1,1]^n$. It is known that, for the Lebesgue measure $dμ(x) = dx$, one may show an error bound $O(1/\sqrt{r})$ if $h$ is a sum-of-squares density, and an $O(1/r)$ error bound if $h$ is the density of a beta distribution. In this paper, we show an error bound of $O(1/r^2)$, if $dμ(x) = \left(\prod_{i=1}^n \sqrt{1-x_i^2} \right)^{-1}dx$ (the well-known measure in the study of orthogonal polynomials), and $h$ has a Schmüdgen-type representation with respect to $[-1,1]^n$, which is a more general condition than a sum of squares. The convergence rate analysis relies on the theory of polynomial kernels, and in particular on Jackson kernels. We also show that the resulting upper bounds may be computed as generalized eigenvalue problems, as is also the case for sum-of-squares densities.
description: 21 pages, 3 figures, published in SIAM Journal on Optimization, 27(1):347-367, March 2017. This arXiv version is an updated version of the journal paper. Typos were corrected in the proofs of Lemmata 2.2 and 3.5 and Theorem 4.2
Additional file 1 of Key aspects of psychosocial needs in palliative care - a qualitative analysis within the setting of a palliative care unit in comparison with specialised palliative home care
Creators: name: Michel, Cathrin
name: Seipp, Hannah
name: Kuss, Katrin
name: Hach, Michaela
name: Kussin, Andrea
name: Riera-Knorrenschild, Jorge
name: Bösner, Stefan
Publisher: name: figshare
Year: 2023
Subjects: subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 1
Additional file 2 of Key aspects of psychosocial needs in palliative care - a qualitative analysis within the setting of a palliative care unit in comparison with specialised palliative home care
Creators: name: Michel, Cathrin
name: Seipp, Hannah
name: Kuss, Katrin
name: Hach, Michaela
name: Kussin, Andrea
name: Riera-Knorrenschild, Jorge
name: Bösner, Stefan
Publisher: name: figshare
Year: 2023
Subjects: subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
classificationCode: 69999
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
classificationCode: 110309
subject: Infectious Diseases
subject: FOS: Health sciences

description: Supplementary Material 2
title: Ontology and methodology in the study of the resource curse
title: LSE Kuwait Programme Paper Series, 43
titleType: Other
Creators: name: Herb, Michael
Publisher: name: London School of Economics and Political Science (LSE)
Year: 2017
Subjects: subject: H Social Sciences
subject: HC Economic History and Conditions
subject: HD Industries. Land use. Labor.
subject: D History General and Old World
subject: DS Asia

description: The most influential work on the resource curse employs quantitative methodologies, typically some variant of regression analysis that includes (to the extent that data allows) all of the world’s countries over a number of years. This paper argues that natural resource rents affect political outcomes through different channels, with varying impact and even direction of effect. This complexity is very difficult to capture in a large quantitative model. This paper argues that careful case studies are a more suitable way to advance our knowledge of the resource curse.
Temporal interactions facilitate endemicity in the susceptible-infected-susceptible epidemic model
Creators: name: Speidel, Leo
name: Klemm, Konstantin
name: Eguíluz, Víctor M.
name: Masuda, Naoki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Data of physical contacts and face-to-face communications suggest temporally varying networks as the media on which infections take place among humans and animals. Epidemic processes on temporal networks are complicated by complexity of both network structure and temporal dimensions. Theoretical approaches are much needed for identifying key factors that affect dynamics of epidemics. In particular, what factors make some temporal networks stronger media of infection than other temporal networks is under debate. We develop a theory to understand the susceptible-infected-susceptible epidemic model on arbitrary temporal networks, where each contact is used for a finite duration. We show that temporality of networks lessens the epidemic threshold such that infections persist more easily in temporal networks than in their static counterparts. We further show that the Lie commutator bracket of the adjacency matrices at different times is a key determinant of the epidemic threshold in temporal networks. The effect of temporality on the epidemic threshold, which depends on a data set, is approximately predicted by the magnitude of a commutator norm.
description: 8 figures, 1 table
Additional file 1 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 1
The merging galaxy cluster A520 --- a broken-up cool core, a dark subcluster, and an X-ray channel
Creators: name: Wang, Qian
name: Markevitch, Maxim
name: Giacintucci, Simona
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present results from a deep Chandra X-ray observation of a merging galaxy cluster A520. A high-resolution gas temperature map, after the subtraction of the cluster-scale emission, reveals a long trail of dense, cool clumps --- apparently the fragments of a cool core that has been completely stripped from the infalling subcluster by ram pressure. In this scenario, we can assume that the clumps are still connected by the magnetic field lines. The observed temperature variations imply that thermal conductivity is suppressed by a factor >100 across the presumed direction of the magnetic field (as found in other clusters), and is also suppressed -along- the field lines by a factor of several. Two massive clumps in the periphery of A520, visible in the weak lensing mass map and the X-ray image, have apparently been completely stripped of gas during the merger, but then re-accreted the surrounding high-entropy gas upon exit from the cluster. An X-ray hydrostatic mass estimate for one of the clumps (that has simple geometry) agrees with the lensing mass. Its current gas mass to total mass ratio is very low, 1.5-3%, which makes it a "dark subcluster". We also found a curious low X-ray brightness channel (likely a low-density sheet in projection) going across the cluster along the direction of an apparent secondary merger. The channel may be caused by plasma depletion in a region of an amplified magnetic field (with plasma $β\sim 10-20$). The shock in A520 will be studied in a separate paper.
description: Accepted for publication in ApJ. 13 pages, 7 figures. (Author affiliation updated (v2), updated with final revisions prior to publication (v3).)
On the cromatic number of infinitesimal plane layer
Creators: name: Kanel-Belov, A. J.
name: Voronov, V.
name: Cherkashin, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15

description: We consider natural generalization of plane chromatic number problem. We consider chromatic numbers $χ$ of spaces $\mathbb{R}^n \times [0,\varepsilon]^k$ for arbitrary small $\varepsilon$. We prove that $5 \leqχ(\mathbb{R}^2\times [0,\varepsilon])\leq 7$ and ${6\leq χ(\mathbb{R}^2\times [0,\varepsilon]^2) \leq 7}$. Also we consider natural questions, arising from this considerations.
description: 13 pages, 3 figures, in Russian
Fabrication of aluminum/stainless steel bimetallic composites through a combination of additive manufacturing and vacuum-assisted melt infiltration casting
Creators: Ghasri-Khouzani, M.
Li, X.
Bogno, A.-A.
Chen, Z.
Liu, J.
Henein, H.
Qureshi, A.J.
Publisher: name: University of Alberta Library
Year: 2021

This paper provides a hybrid method for net shape, lattice based, complex bimetallic composites using a combination of laser powder bed additive manufacturing and vacuum-assisted melt infiltration casting process. 316L stainless steel lattice structures were built using a selective laser melting (SLM) technique. Then, their cavities were filled with an aluminum alloy using vacuum-assisted melt infiltration to yield a bimetallic composite. For comparison purposes, monolithic aluminum alloy was also cast under the same casting parameters. Tensile properties of the fabricated stainless steel lattice and bimetallic composite were found to be insignificantly different. This was explained by the observed continuous gap in the 316L stainless steel/aluminum alloy interfaces which prevented load transfer from the stainless steel lattice to the aluminum matrix during tension. However, compressive properties of the bimetallic composite were found to be significantly greater than those of the stainless steel lattice implying that the aluminum alloy matrix plays an important role during compressive deformation of the bimetallic composites. The monolithic aluminum alloy sample exhibited a noticeably higher elastic modulus, yield stress and ultimate tensile strength but a dramatically lower elongation than both the steel lattice and bimetallic composite specimen. Detachment of the stainless steel lattice from the aluminum matrix was determined to be the root cause of failure for the bimetallic composite in tension.
Additional file 2 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 2
The influence of a weak magnetic field in the Renormalization-Group functions of (2+1)-dimensional Dirac systems
Creators: name: Menezes, N.
name: Alves, Van Sergio
name: Smith, C. Morais
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The experimental observation of the renormalization of the Fermi velocity $v_{F}$ as a function of doping has been a landmark for confirming the importance of electronic interactions in graphene. Although the experiments were performed in the presence of a perpendicular magnetic field $B$, the measurements are well described by a renormalization-group (RG) theory that did not include it. Here we clarify this issue, for both massive and massless Dirac systems, and show that for the weak magnetic fields at which the experiments are performed, there is no change in the renormalization-group functions. Our calculations are carried out in the framework of the Pseudo-quantum electrodynamics (PQED) formalism, which accounts for dynamical interactions. We include only the linear dependence in $B$, and solve the problem using two different parametrizations, the Feynman and the Schwinger one. We confirm the results obtained earlier within the RG procedure and show that, within linear order in the magnetic field, the only contribution to the renormalization of the Fermi velocity arises due to interactions. In addition, for gapped systems, we observe a running of the mass parameter.
description: Discussion about the fermionic mass has been added to the previous version
Der Einfluß von Botulinumneurotoxin A auf Wachstum und Differenzierung primär dissoziierter hippocampaler Zellkulturen
Creators: name: Fetter, Ingmar
Publisher: name: Humboldt-Universität zu Berlin, Medizinische Fakultät - Universitätsklinikum Charité
Year: 1999
Subjects: subject: Dendrit
subject: SNAP-25
subject: Botulinumneurotoxin A
subject: hippocampale Zellkulturen
subject: dendrite
subject: botulinum neurotoxin A
subject: mouse hippocampal neurons
subject: 610 Medizin
subject: 33 Medizin
subject: WW 1620

description: Obwohl die Struktur und das Ausmaß dendritischer Verzweigungen eine wichtige Rolle bei der Informationsübertragung neuronaler Zellen spielen, ist bislang wenig über die Bausteine und Molekularmechanismen des Dendritenwachstums bekannt. Unter der Verwendung primär dissoziierter hippocampaler Zellkulturen embryonaler Mäuse untersuchte ich frühe Stadien des Zellfortsatzwachstums. Dabei konnte ich SNAP-25 (synaptosomal associated protein of 25 kDA), ein Schlüsselprotein der regulierten Exozytose, nicht nur in Axonen und terminalen Axonendigungen, sondern auch anhand von Doppelimmunmarkierungen mit den dendritischen Markern Transferrin-Rezeptor und MAP-2 in Dendriten lokalisieren. Die spezifische Inaktivierung von SNAP-25 durch Botulinumneurotoxin A (BoNT/A) führte zur Hemmung des Axonwachstums und des Vesikelrecyclings in terminalen Axonendigungen. Darüberhinaus wurde auch das Wachstum dendritischer Fortsätze von Körner- und Pyramidenzellen durch BoNT/A signifikant gehemmt. Daraus läßt sich schließen, daß SNAP-25, im Gegensatz zu Synaptobrevin, an konstitutiven Prozessen in den Axonen und Dendriten hippocampaler Neurone beteiligt ist.
description: Structure and dimension of the dendritic arbor are important determinants of information processing by the nerve cell, but mechanisms and molecules involved in dendritic growth are essentially unknown. I investigated early mechanisms of dendritic growth using mouse fetal hippocampal neurons in primary culture, which form processes during the first week in vitro. I detected a key component of regulated exocytosis, SNAP-25 (synaptosomal associated protein of 25 kDa)., in axons and axonal terminals as well as in dendrites identified by the occurrence of the dendritic markers transferrin receptor and MAP2. Selective inactivation of SNAP-25 by botulinum neurotoxin A (BoNTA) resulted in inhibition of axonal growth and of vesicle recycling in axonal terminals. In addition, dendritic growth of hippocampal pyramidal and granule neurons was significantly inhibited by BoNTA. These observations indicate that SNAP-25, but not synaptobrevin, is involved in constitutive axonal growth and dendrite formation by hippocampal neurons.
Additional file 3 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 3
On the Symmetries and the Capacity Achieving Input Covariance Matrices of Multiantenna Channels
Creators: name: Diaz, Mario
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper we study the capacity achieving input covariance matrices of a single user multiantenna channel based solely on the group of symmetries of its matrix of propagation coefficients. Our main result, which unifies and improves the techniques used in a variety of classical capacity theorems, uses the Haar (uniform) measure on the group of symmetries to establish the existence of a capacity achieving input covariance matrix in a very particular subset of the covariance matrices. This result allows us to provide simple proofs for old and new capacity theorems. Among other results, we show that for channels with two or more standard symmetries, the isotropic input is optimal. Overall, this paper provides a precise explanation of why the capacity achieving input covariance matrices of a channel depend more on the symmetries of the matrix of propagation coefficients than any other distributional assumption.
description: 16 pages, presented at the 2016 IEEE International Symposium on Information Theory
National Open Access Monitor Advisory Group Meeting Minutes, 18th September 2023
Creators: name: Binchy, Aaron
Publisher: name: Zenodo
Year: 2023
Subjects: open access
open access monitoring
Ireland
minutes
advisory group

description: Minutes of the National Open Access Monitor Project Advisory Group, held on 18th September 2023. The agenda of this meeting was to review of draft Inception Report provided by OpenAIRE on 13th September (Appendix 1). The outcome of the meeting was to provide Advisory Group feedback to OpenAIRE on any areas in the document which need more clarity and answer any questions OpenAIRE have at this stage. The National Open Access Monitor Project is managed by IReL and has received funding from Ireland’s National Open Research Forum under the NORF Open Research Fund. https://norf.ie/funding/ https://norf.ie/orf-projects-announcement/
Comparative performance evaluation of Horro and Menz sheep of Ethiopia under grazing and intensive feeding conditions
Creators: name: Awgichew, Kassahun
Publisher: name: Humboldt-Universität zu Berlin, Landwirtschaftlich-Gärtnerische Fakultät
Year: 2000
Subjects: subject: Schafe
subject: Rasse
subject: Lämmer
subject: Körpergewicht
subject: Körpermasseentwicklung
subject: Überlebensrate
subject: lineare Körpermaße
subject: Schlachtleistung
subject: Körperfettverteilung
subject: Ätherextraktion
subject: sheep
subject: breed
subject: lamb
subject: bodyweight
subject: growth rate
subject: survival rate
subject: linear body measurements
subject: carcass performance
subject: fat deposition
subject: body fat distribution
subject: Ether extract
subject: 630 Landwirtschaft, Veterinärmedizin
subject: 39 Landwirtschaft, Garten
subject: ZD 14070

description: Die vorliegende Untersuchung wurde am International Livestock Centre for Africa (ILCA), jetzt International Livestock Research Institute (ILRI) auf der Versuchsstation Debre Birhan in Äthiopien durchgeführt. Diese Untersuchung ist Teil eines panafrikanischen ILRI-Forschungsprogramms zur Untersuchung und Charakterisierung einheimischer kleiner Wiederkäuer im Sub-Saharischen Afrika auf genetische Resistenz gegenüber Endoparasiten. Das Ziel dieser Arbeit bestand darin, Ergebnisse zu verschaffen, die zum Verständnis der relativen Leistung zweier äthiopischer Hochlandschafrassen (Horroschaf und Menzschaf) unter Stationsbedingungen dienen sollen. Horro-Lämmer (2,43±0,03 kg) waren signifikant (p
description: This study has been carried out at the former International Livestock Centre for Africa (ILCA), that is now the International Livestock Research Institute (ILRI) experiment station at Debre Birhan, Ethiopia. This research is part of an ILCA (now ILRI) Pan-African research programme designed to investigate and characterise genetic resistance to endoparasites in some indigenous small ruminants in sub-Saharan Africa. The present study was, therefore, undertaken in an attempt to generate information that may contribute towards the understanding of the relative performance of two highland sheep (Horro and Menz) of Ethiopia under station management conditions. Horro lambs were significantly heavier (P
Additional file 4 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 4
Accelerated Stability Study on Anti-Allergic, Anti-inflammatory Activities and Phytochemical Contents of the Ethanolic Extract of Zingiber officinaleRoscoe
Creators: name: Arunporn Itharat
Publisher: name: กองบริหารการวิจัย
Year: 2020
Subjects: Ginger
Anti-allergic activity
Anti-inflammatory activity
HPLC
Stability study

description: Science & Technology Asia, 25, 2, 86-96
Optimization of Ingredients using Response Surface Methodology and Effects of Organic Acids on Phytochemicals and Antioxidant Activities in Extruded Purple Corn Noodle
Creators: name: Hathaigan Kokkaew
Publisher: name: กองบริหารการวิจัย
Year: 2020
Subjects: Extruded purple corn noodles
Responsesurfacemethodology
Phytochemical
Antioxidant activity
Organic acid

description: Science & Technology Asia, 25, 2, 97-111
Coupling stochastic EM and Approximate Bayesian Computation for parameter inference in state-space models
Creators: name: Picchini, Umberto
name: Samson, Adeline
Publisher: name: arXiv
Year: 2015
Subjects: subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We study the class of state-space models and perform maximum likelihood estimation for the model parameters. We consider a stochastic approximation expectation-maximization (SAEM) algorithm to maximize the likelihood function with the novelty of using approximate Bayesian computation (ABC) within SAEM. The task is to provide each iteration of SAEM with a filtered state of the system, and this is achieved using an ABC sampler for the hidden state, based on sequential Monte Carlo (SMC) methodology. It is shown that the resulting SAEM-ABC algorithm can be calibrated to return accurate inference, and in some situations it can outperform a version of SAEM incorporating the bootstrap filter. Two simulation studies are presented, first a nonlinear Gaussian state-space model then a state-space model having dynamics expressed by a stochastic differential equation. Comparisons with iterated filtering for maximum likelihood inference, and Gibbs sampling and particle marginal methods for Bayesian inference are presented.
description: 29 pages. Made a small fix to equation (8). Added the doi of the published version, doi: 10.1007/s00180-017-0770-y
Additional file 5 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 5
Coherent-state constellations and polar codes for thermal Gaussian channels
Creators: name: Lacerda, Felipe
name: Renes, Joseph M.
name: Scholz, Volkher B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Optical communication channels are ultimately quantum-mechanical in nature, and we must therefore look beyond classical information theory to determine their communication capacity as well as to find efficient encoding and decoding schemes of the highest rates. Thermal channels, which arise from linear coupling of the field to a thermal environment, are of particular practical relevance; their classical capacity has been recently established, but their quantum capacity remains unknown. While the capacity sets the ultimate limit on reliable communication rates, it does not promise that such rates are achievable by practical means. Here we construct efficiently encodable codes for thermal channels which achieve the classical capacity and the so-called Gaussian coherent information for transmission of classical and quantum information, respectively. Our codes are based on combining polar codes with a discretization of the channel input into a finite "constellation" of coherent states. Encoding of classical information can be done using linear optics.
description: v3: published version; v2: vastly improved presentation. Figures! v1: 10 pages
Additional file 6 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 6
Regularized Estimation of Piecewise Constant Gaussian Graphical Models: The Group-Fused Graphical Lasso
Creators: name: Gibberd, Alexander J.
name: Nelson, James D. B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: The time-evolving precision matrix of a piecewise-constant Gaussian graphical model encodes the dynamic conditional dependency structure of a multivariate time-series. Traditionally, graphical models are estimated under the assumption that data is drawn identically from a generating distribution. Introducing sparsity and sparse-difference inducing priors we relax these assumptions and propose a novel regularized M-estimator to jointly estimate both the graph and changepoint structure. The resulting estimator possesses the ability to therefore favor sparse dependency structures and/or smoothly evolving graph structures, as required. Moreover, our approach extends current methods to allow estimation of changepoints that are grouped across multiple dependencies in a system. An efficient algorithm for estimating structure is proposed. We study the empirical recovery properties in a synthetic setting. The qualitative effect of grouped changepoint estimation is then demonstrated by applying the method on two real-world data-sets.
description: 32 pages, 9 figures
Impact of leptonic $τ$ decays on the distribution of $B \to P μ\barν$ decays
Creators: name: Bordone, Marzia
name: Isidori, Gino
name: van Dyk, Danny
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the fully-differential rate of the decays $B\to Pτ(\to μ\barνν)\barν$ where $P = D,π$, which is a background to the semimuonic decays $B\to Pμ\barν$. The decays with a $3ν$ final state can have a sizeable impact on the experimental analyses of the ratios $R_D$ and $R_π$, depending on the event selection in the analysis. We outline a strategy which permits the extraction of $R_P \mathcal{B}(τ\to μ\barνν)$ from the neutrino-inclusive rate. Our analytic results can also be used to test both existing and upcoming experimental analyses. We further provide Monte Carlo samples of the 5D rate of the neutrino-inclusive decays $B\to PμX_{\barν}$.
description: 14 pages, 6 figures, 3 ancillary files; v2 (as published): Corrected error in d^5Gamma, updated all numerical results; summary unchanged
Equity derivatives markets
Creators: name: Detlefsen, Kai
Publisher: name: Humboldt-Universität zu Berlin, Wirtschaftswissenschaftliche Fakultät
Year: 2007
Subjects: subject: Aktienderivate
subject: Implizierte Volatilitätsoberfläche
subject: Varianzswap
subject: Preiskern
subject: equity derivatives
subject: implied volatility surface
subject: variance swap
subject: empirical pricing kernel
subject: 330 Wirtschaft
subject: 17 Wirtschaft
subject: QK 660

description: Seit der Entdeckung der arbitragefreien Bewertung hat sich das Gebiet finance grundlegend geändert - sowohl in der Theorie als auch in der Anwendung. Märkte für Derivate haben sich entwickelt und Optionen dienen heutzutage als Basis- und als Absicherungsinstrumente. In dieser Dissertation betrachten wir einige Märkte für Aktienderivate. Wir beginnen mit statistischen Analysen des Marktes für europäische Optionen und des Marktes für Varianzswaps, weil diese Produkte die hauptsächlichen Absicherungsinstrumente für komplexe Optionen sind. Dann betrachten wir verschiedene Optionspreismodelle und ihre Kalibrierung an beobachtete Preisoberflächen. Schließlich untersuchen wir die Verbindung zwischen Optionspreisen und dem grundlegenden ökonomischen Konzept der Risikoaversion anhand des empirischen Preiskernes.
description: Since the ideas of arbitrage free pricing were born, finance has changed radically - both in theory and practice. Derivatives markets have evolved and options serve nowadays as underlyings and as hedging instruments. In this thesis, we consider some markets for equity derivatives. We start by statistical analysis of the markets for European options and variance swaps because these products are important for hedging more complex claims. Then we consider different option pricing models and their calibration to observed price surfaces. Finally, we investigate the connection between option prices and the fundamental economic concept of risk aversion by the empirical pricing kernel.
Additional file 7 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 7
The Greek philosophical schools according to Europe's earliest history of philosophy. Towards a new pioneering critical edition of Philodemus' "Arrangement of the Philosophers"
Creators: name: Ranocchia, Graziano
name: Puglia, Enzo
name: Vassallo, Christian
name: Pernigotti, Carlo
name: Fleischer, Kilian
name: Verhasselt, Gertjan
name: Alessandrelli, Michele
name: Miliani, Costanza
name: Romano, Francesco Paolo
name: Rosi, Francesca
name: Caliri, Claudia
name: Pavone, Danilo Paolo
name: Preisler, Zdenek
name: Zenzaro, Simone
name: Boschetti, Federico
name: Del Grosso, Angelo Mario
name: Enea, Alessandro
Publisher: name: Zenodo
Year: 2022
Subjects: Greek papyrology, Ancient philosophy, Textual criticism, Shortwave-Infrared Hyperspectral Imaging, TeraHertz Imaging, Optical Coherence Tomography, X-Ray Fluorescence Mapping, 3D Microscopy, Nuclear Magnetic Resonance Relaxometry, Computational philology, Digital Scholarly Editing, Machine Learning for Text

description: Our knowledge about Greek philosophical schools is mostly based on Diogenes Laërtius’ Lives and Philodemus of Gadara’s Arrangement of the Philosophers, a treatise in several books which represents the earliest ‘history of philosophy’ to have reached us directly from antiquity. In particular, from this work preserved by the Herculaneum papyri we may derive a systematic account of the history of Greek philosophical schools which is in many respects unique. Unfortunately, the papyri which transmit it are in a poor state and the currently available editions of them are obsolete. By relying on advanced technologies, the project aims to provide a new critical edition of this treatise, with introduction and commentary. In particular, noninvasive techniques will be applied to opisthograph and multi-layered papyri belonging to Philodemus’ treatise, as well as to other papyri, in order to read the text hidden on the verso, detect, classify and replace overlapping layers, and read the text concealed in them. We shall combine these methods with sound philological approaches in order to produce an improved critical text of Philodemus’ treatise. Finally, we shall produce an open-access electronic edition of it through an open-source scholarly Web platform, engaging scholars in an on-going collaborative revision of it.
Entropic uncertainty relation based on generalized uncertainty principle
Creators: name: Hsu, Li-Yi
name: Kawamoto, Shoichi
name: Wen, Wen-Yu
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We explore the modification of the entropic formulation of uncertainty principle in quantum mechanics which measures the incompatibility of measurements in terms of Shannon entropy. The deformation in question is the type so called generalized uncertainty principle that is motivated by thought experiments in quantum gravity and string theory and is characterized by a parameter of Planck scale. The corrections are evaluated for small deformation parameters by use of the Gaussian wave function and numerical calculation. As the generalized uncertainty principle has proven to be useful in the study of the quantum nature of black holes, this study would be a step toward introducing an information theory viewpoint to black hole physics.
description: 14 pages, 9 figures; Ver 2, references and a new discussion based on an auxiliary momentum are added; Ver. 3, references updated. Final version to appear in Mod. Phys. Lett. A
Orienting Transversals and Transition Polynomials of Multimatroids
Creators: name: Brijder, Robert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: Multimatroids generalize matroids, delta-matroids, and isotropic systems, and transition polynomials of multimatroids subsume various polynomials for these latter combinatorial structures, such as the interlace polynomial and the Tutte-Martin polynomial. We prove evaluations of the Tutte-Martin polynomial of isotropic systems from Bouchet directly and more efficiently in the context of transition polynomials of multimatroids. Moreover, we generalize some related evaluations of the transition polynomial of 4-regular graphs from Jaeger to multimatroids. These evaluations are obtained in a uniform and matroid-theoretic way. We also translate the evaluations in terms of the interlace polynomial of graphs. Finally, we give an excluded-minor theorem for the class of binary tight 3-matroids (a subclass of multimatroids) based on the excluded-minor theorem for the class of binary delta-matroids from Bouchet.
description: 28 pages, no figures
Additional file 8 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 8
Clogging of soft particles in 2D hoppers
Creators: name: Hong, Xia
name: Kohne, Meghan
name: Morrell, Mia
name: Wang, Haoran
name: Weeks, Eric R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Using experiments and simulations, we study the flow of soft particles through quasi-two-dimensional hoppers. The first experiment uses oil-in-water emulsion droplets in a thin sample chamber. Due to surfactants coating the droplets, they easily slide past each other, approximating soft frictionless disks. For these droplets, clogging at the hopper exit requires a narrow hopper opening only slightly larger than the droplet diameter. The second experiments use soft hydrogel particles in a thin sample chamber, where we vary gravity by changing the tilt angle of the chamber. For reduced gravity, clogging becomes easier, and can occur for larger hopper openings. Our simulations mimic the emulsion experiments and demonstrate that softness is a key factor controlling clogging: with stiffer particles or a weaker gravitational force, clogging is easier. The fractional amount a single particle is deformed under its own weight is a useful parameter measuring particle softness. Data from the simulation and hydrogel experiments collapse when compared using this parameter. Our results suggest that prior studies using hard particles were in a limit where the role of softness is negligible which causes clogging to occur with significantly larger openings.
description: v03 has new experiments using hydrogel particles, along with new coauthors who did those experiments
The number of linear transformations defined on a subspace with given invariant factors
Creators: name: Ram, Samrith
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05A05, 05A15, 15A04, 15B33

description: Given a finite-dimensional vector space $V$ over the finite field $\mathbb{F}_q$ and a subspace $W$ of $V$, we consider the problem of counting linear transformations $T:W\to V$ which have prescribed invariant factors. The case $W=V$ is a well-studied problem that is essentially equivalent to counting the number of square matrices over $\mathbb{F}_q$ in a conjugacy class and an explicit formula is known in this case. On the other hand, the case of general $W$ is also an interesting problem and there hasn't been substantive progress in this case for over two decades, barring a special case where all the invariant factors of $T$ are of degree zero. We extend this result to the case of arbitrary $W$ by giving an explicit counting formula. As an application of our results, we give new proofs of some recent enumerative results in linear control theory and derive an extension of the Gerstenhaber-Reiner formula for the number of square matrices over $\mathbb{F}_q$ with given characteristic polynomial.
description: minor changes in abstract and some suggestions of referee incorporated; the section on Gerstenhaber-Reiner formula has been considerably expanded with an application
Magnetic Domain Wall Engineering in a Nanoscale Permalloy Junction
Creators: name: Wang, Junlin
name: Zhang, Xichao
name: Lu, Xianyang
name: Zhang, Jason
name: Ling, Hua
name: Wu, Jing
name: Zhou, Yan
name: Xu, Yongbing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Nanoscale magnetic junction provides a useful approach to act as the building block for magnetoresistive random access memories (MRAM), where one of the key issues is to control the magnetic domain configuration. Here, we study the domain structure and the magnetic switching in the Permalloy (Fe20Ni80) nanoscale magnetic junctions with different thicknesses by using micromagnetic simulations. It is found that both the 90-degree and 45-degree domain walls can be formed between the junctions and the wire arms depending on the thickness of the device. The magnetic switching fields show distinct thickness dependencies with a broad peak varying from 7 nm to 22 nm depending on the junction sizes, and the large magnetic switching fields favor the stability of the MRAM operation.
description: 9 pages,5 figures
Additional file 10 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 10
Additional file 11 of Diagnostic and therapeutic practices in adult chronic nonbacterial osteomyelitis (CNO)
Creators: name: Leerling, A. T.
name: Clunie, G.
name: Koutrouba, E.
name: Dekkers, O. M.
name: Appelman-Dijkstra, N. M.
name: Winter, E. M.
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
classificationCode: 59999
subject: Environmental Sciences not elsewhere classified
classificationCode: 39999
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
classificationCode: 69999
subject: Biological Sciences not elsewhere classified

description: Supplementary Material 11
On Exclusive $h \to V \ell^+ \ell^-$ Decays
Creators: name: Colangelo, Pietro
name: De Fazio, Fulvia
name: Santorelli, Pietro
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a set of exclusive decay modes of the Standard Model Higgs boson into a vector meson and a dilepton pair: $h\to V \ell^+ \ell^-$, with $V=Υ, J/ψ,ϕ$, and $\ell=μ, τ$, determining the decay rates, the dilepton mass spectra and the $V$ longitudinal helicity fraction distributions. In the same framework, we analyze the exclusive modes into neutrino pairs $h\to V ν\bar ν$. We also discuss the implications of the recent CMS and ATLAS results for the lepton flavor-changing process $h\to τ^+ μ^-$ on the $h\to V τ^+ μ^-$ decay modes.
description: 13 pages, 4 figures; v2 matches published version