cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Holevo's bound from a general quantum fluctuation theorem
Creators: name: Kafri, Dvir
name: Deffner, Sebastian
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We give a novel derivation of Holevo's bound using an important result from nonequilibrium statistical physics, the fluctuation theorem. To do so we develop a general formalism of quantum fluctuation theorems for two-time measurements, which explicitly accounts for the back action of quantum measurements as well as possibly non-unitary time evolution. For a specific choice of observables this fluctuation theorem yields a measurement-dependent correction to the Holevo bound, leading to a tighter inequality. We conclude by analyzing equality conditions for the improved bound.
description: 5 pages
Chiral Perturbation Theory and the $\bar B \bar B$ Strong Interaction
Creators: name: Liu, Zhan-Wei
name: Li, Ning
name: Zhu, Shi-Lin
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We have calculated the potentials of the heavy (charmed or bottomed) pseudoscalar mesons up to $O(ε^2)$ with the heavy meson chiral perturbation theory. We take into account the contributions from the football, triangle, box, and crossed diagrams with the 2$ϕ$ exchange and one-loop corrections to the contact terms. We notice that the total 2$ϕ$-exchange potential alone is attractive in the small momentum region in the channel ${\bar B \bar B}^{I=1}$, ${\bar B_s \bar B_s}^{I=0}$, or ${\bar B \bar B_s}^{I=1/2}$, while repulsive in the channel ${\bar B \bar B}^{I=0}$. Hopefully the analytical chiral structures of the potentials may be useful in the extrapolation of the heavy meson interaction from lattice QCD simulation.
description: 14 pages, 8 figures, 4 tables; discussion extended, references added, version published in Phys. Rev. D
Testing general relativity with gravitational waves: a reality check
Creators: name: Vallisneri, Michele
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The observations of gravitational-wave signals from astrophysical sources such as binary inspirals will be used to test General Relativity for self consistency and against alternative theories of gravity. I describe a simple formula that can be used to characterize the prospects of such tests, by estimating the matched-filtering signal-to-noise ratio required to detect non-General-Relativistic corrections of a given magnitude. The formula is valid for sufficiently strong signals; it requires the computation of a single number, the fitting factor between the General-Relativistic and corrected waveform families; and it can be applied to all tests that embed General Relativity in a larger theory, including tests of individual theories such as Brans-Dicke gravity, as well as the phenomenological schemes that introduce corrections and extra terms in the post-Newtonian phasing expressions of inspiral waveforms. The formula suggests that the volume-limited gravitational-wave searches performed with second-generation ground-based detectors would detect alternative-gravity corrections to General-Relativistic waveforms no smaller than 1-10% (corresponding to fitting factors of 0.9 to 0.99).
description: 7 pages, 1 figure, RevTeX 4.1, final published version
Limit distribution theory for maximum likelihood estimation of a log-concave density
Creators: name: Balabdaoui, Fadoua
name: Rufibach, Kaspar
name: Wellner, Jon A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62N01, 62G20 (Primary) 62G05 (Secondary)

description: We find limiting distributions of the nonparametric maximum likelihood estimator (MLE) of a log-concave density, that is, a density of the form $f_0=\expφ_0$ where $φ_0$ is a concave function on $\mathbb{R}$. The pointwise limiting distributions depend on the second and third derivatives at 0 of $H_k$, the "lower invelope" of an integrated Brownian motion process minus a drift term depending on the number of vanishing derivatives of $φ_0=\log f_0$ at the point of interest. We also establish the limiting distribution of the resulting estimator of the mode $M(f_0)$ and establish a new local asymptotic minimax lower bound which shows the optimality of our mode estimator in terms of both rate of convergence and dependence of constants on population values.
description: Published in at http://dx.doi.org/10.1214/08-AOS609 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Realization of the $π$-state in junctions formed by multi-band superconductors with a spin-density-wave
Creators: name: Moor, Andreas
name: Volkov, Anatoly F.
name: Efetov, Konstantin B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using a simple model of multi-band superconductors, which can be applied in particular to Fe\nobreakdash-based pnictides, we calculate the Josephson current $I_{\text{J}}$ in a tunnel junction composed by such superconductors. We employ the tunneling Hamiltonian method and quasiclassical Green's functions. We study both the case of coexistence of the superconducting ($Δ$) and magnetic (SDW---spin density wave) order parameters and the case when only the superconducting order parameter exists. We show that the current $I_{\text{J}}$ depends on the mutual orientation of magnetization of the SDW in the case of non-ideal nesting when the coexistence of superconducting and magnetic order parameters is possible as it takes place in Fe\nobreakdash-based pnictides. It is found that the realization of the $π$\nobreakdash-junction is possible in both cases. We compare our results for multi-band superconductors without the SDW with those obtained earlier and find that they coincide if the tunneling matrix elements are real. If these elements are complex, a new term appears in the formula for the Josephson critical current.
description: 4+ pages, 1 figure Representation improved, typos corrected
Maximum likelihood estimation of a log-concave density and its distribution function: Basic properties and uniform consistency
Creators: name: Duembgen, Lutz
name: Rufibach, Kaspar
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: We study nonparametric maximum likelihood estimation of a log-concave probability density and its distribution and hazard function. Some general properties of these estimators are derived from two characterizations. It is shown that the rate of convergence with respect to supremum norm on a compact interval for the density and hazard rate estimator is at least $(\log(n)/n)^{1/3}$ and typically $(\log(n)/n)^{2/5}$, whereas the difference between the empirical and estimated distribution function vanishes with rate $o_{\mathrm{p}}(n^{-1/2})$ under certain regularity assumptions.
description: Published in at http://dx.doi.org/10.3150/08-BEJ141 the Bernoulli (http://isi.cbs.nl/bernoulli/) by the International Statistical Institute/Bernoulli Society (http://isi.cbs.nl/BS/bshome.htm), Version 3 is the extended technical report cited in version 4
Inductive topological Hausdorff dimensions and fibers of generic continuous functions
Creators: name: Balka, Richárd
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: Primary: 28A78, 54F45, Secondary: 26B99, 28A80, 46E15

description: In an earlier paper Buczolich, Elekes and the author introduced a new concept of dimension for metric spaces, the so called topological Hausdorff dimension. They proved that it is precisely the right notion to describe the Hausdorff dimension of the level sets of the generic real-valued continuous function (in the sense of Baire category) defined on a compact metric space $K$. The goal of this paper is to determine the Hausdorff dimension of the fibers of the generic continuous function from $K$ to $\mathbb{R}^n$. In order to do so, we define the $n$th inductive topological Hausdorff dimension, $\dim_{t^nH} K$. Let $\dim_H K$, $\dim_t K$ and $C_n(K)$ denote the Hausdorff and topological dimension of $K$ and the Banach space of the continuous functions from $K$ to $\mathbb{R}^n$. We show that $\sup_{y\in \mathbb{R}^n} \dim_{H}f^{-1}(y) = \dim_{t^nH} K -n$ for the generic $f \in C_n(K)$, provided that $\dim_t K\geq n$, otherwise every fiber is finite. In order to prove the above theorem we give some equivalent definitions for the inductive topological Hausdorff dimensions, which can be interesting in their own right. Here we use techniques coming from the theory of topological dimension. We show that the supremum is actually attained on the left hand side of the above equation. We characterize those compact metric spaces $K$ for which $\dim_{H} f^{-1}(y)=\dim_{t^nH}K-n$ for the generic $f\in C_n(K)$ and the generic $y\in f(K)$. We also generalize a result of Kirchheim by showing that if $K$ is self-similar and $\dim_t K\geq n$ then $\dim_{H} f^{-1}(y)=\dim_{t^nH}K-n$ for the generic $f\in C_n(K)$ for every $y\in \inter f(K)$.
description: 24 pages. This is the final version, incorporating referees' comments. Section 5 is added, some minor corrections. The final publication is available at http://link.springer.com/article/10.1007/s00605-014-0621-7
Mineralogical and Hydrogeochemical Characterization of Legacy Mine Wastes near Cobalt, ON
Creators: name: Fischer, Cole
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2022
Subjects: Aqueous Geochemistry
Mineralogy

description: Cart Lake, located 1.6 km south of the town of Cobalt, ON, contains elevated concentrations of As (0.95 to 18.05 mg/L Ast) resulting from uncontained mine tailings deposited during a silver mining boom from 1910 to 1983. Aqueous geochemical and investigations indicate tailings are sulfate-affected but subject to extensive carbonate buffering, with pH ranging from 6.7 to 8.6, Eh ranging from 46 to 210 mV, and alkalinity ranging from 32 to 201 mg/L HCO3-. The dominant cation species are Ca (4.9 to 192.0 mg/L), K (1.1 to 13.5 mg/L), Mg (1.2 to 8.7 mg/L), and Na (2.1 to 16.9 mg/L) and the dominant anionic species are alkalinity, As (0.003 to 18.1 mg/L), Cl- (0.3 to 16.8 mg/L), PO4 (0.04. to 9.6 mg/L), and SO42- (6.8 to 456.1 mg/L). Concentrations of minor and trace cations such as Fe, Co, and Ni are present at the g/L scale. Mineralogical investigations suggest As is mobilized from primary reactive sulfide and arsenide minerals such as arsenopyrite, skutterudite, and safflorite/löllingite/ rammelsbergite solid solutions. Primary mineral alteration products including Ca-Fe arsenates and erythrite are found in these tailings, resulting from direct alteration from primary minerals and precipitation from solution respectively. Secondary Ca-Fe arsenates and Co-Arsenates attenuate As, Co, and Fe by absorption and coprecipitation throughout the tailings profile, influenced by the presence of alteration rims around reactive mineral grains in the vadose zone. Field analysis of cation speciation and geochemical modelling of elemental equilibrium concentrations with weathering primary mineral surfaces would further inform conclusions regarding the relative contributions of each mineral to total As attenuation.
(Un)determined finite regularization dependent quantum corrections: the Higgs decay into two photons and the two photon scattering examples
Creators: name: Cherchiglia, A. L.
name: Cabral, L. A.
name: Nemes, M. C.
name: Sampaio, Marcos
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the appearance of arbitrary, regularization dependent parameters introduced by divergent integrals in two a priori finite but superficially divergent amplitudes: the Higgs decay into two photons and the two photon scattering. We use a general parametrization of ultraviolet divergences which makes explicit such ambiguities. Thus we separate in a consistent way using Implicit Regularization the divergent, finite and regularization dependent parts of the amplitudes which in turn are written as surface terms. We find that, although finite, these amplitudes are ambiguous before the imposition of physical conditions namely momentum routing invariance in the loops of Feynman diagrams. In the examples we study momentum routing invariance turns out to be equivalent to gauge invariance. We also discuss the results obtained by different regularizations and show how they can be reproduced within our framework allowing for a clear view on the origin of regularization ambiguities.
description: Version accepted for publication at Phys. Rev. D
An Active Set Algorithm to Estimate Parameters in Generalized Linear Models with Ordered Predictors
Creators: name: Rufibach, Kaspar
Publisher: name: arXiv
Year: 2009
Subjects: subject: Methodology (stat.ME)
subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: In biomedical studies, researchers are often interested in assessing the association between one or more ordinal explanatory variables and an outcome variable, at the same time adjusting for covariates of any type. The outcome variable may be continuous, binary, or represent censored survival times. In the absence of precise knowledge of the response function, using monotonicity constraints on the ordinal variables improves efficiency in estimating parameters, especially when sample sizes are small. An active set algorithm that can efficiently compute such estimators is proposed, and a characterization of the solution is provided. Having an efficient algorithm at hand is especially relevant when applying likelihood ratio tests in restricted generalized linear models, where one needs the value of the likelihood at the restricted maximizer. The algorithm is illustrated on a real life data set from oncology.
description: 24 pages, 1 Figure, 3 Tables
Freiman's theorem in an arbitrary nilpotent group
Creators: name: Tointon, Matthew
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We prove a Freiman-Ruzsa-type theorem valid in an arbitrary nilpotent group. Specifically, we show that a K-approximate subgroup A of an s-step nilpotent group G is contained in a coset nilprogression of rank at most f(K) and cardinality at most exp(g(K))|A|, with f and g polynomials depending only on the step s of G. To motivate this, we give a direct proof of Breuillard and Green's analogous result for torsion-free nilpotent groups, avoiding the use of Mal'cev's embedding theorem.
description: 39 pages. Version 2 contains a corrected proof of Theorem 1.7; improved exposition in Section 7, incorporating suggestions from an anonymous referee; and various minor presentational and organisational changes. Version 3 reflects changes made by a copy editor. Appears in Proc. London Math. Soc. at http://plms.oxfordjournals.org/cgi/content/abstract/pdu005? ijkey=AVizKoIO9JYHczu&keytype=ref
Diagonal multi-soliton matrix elements in finite volume
Creators: name: Pálmai, T.
name: Takács, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider diagonal matrix elements of local operators between multi-soliton states in finite volume in the sine-Gordon model, and formulate a conjecture regarding their finite size dependence which is valid up to corrections exponential in the volume. This conjecture extends the results of Pozsgay and Takács which were only valid for diagonal scattering. In order to test the conjecture we implement a numerical renormalization group improved truncated conformal space approach. The numerical comparisons confirm the conjecture, which is expected to be valid for general integrable field theories. The conjectured formula can be used to evaluate finite temperature one-point and two-point functions using recently developed methods.
description: 11 pages, 9 eps figures, revtex4. v2: cutoff extrapolation procedure corrected, using the theoretically predicted exponents, and related discussion is changed. Main results are unchanged. Some typos and inaccuracies corrected. arXiv admin note: text overlap with arXiv:1112.6322
Recognizing Patient Partner Contributions to Health Research
Creators: name: Fox, Grace
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2022
Subjects: Patient Engagement in Research
Patient Partner
Compensation

description: Patient engagement in research has many benefits including the alignment of research aims, projects, and outcomes with those of the ultimate end-user. As a result, patient engagement is becoming increasingly established in many areas of health research. Missing from this growing body of evidence are details about how patient partners (i.e., individuals with lived experience of a health condition including informal caregivers, family and friends) are compensated for their contributions as well as existing barriers or challenges to compensation. The overall aim of my thesis is to synthesize and assess the current landscape of patient partner compensation. First, I conducted a systematic review that identified a cohort of published patient engagement research and assessed the prevalence of reporting compensation and identified current compensation practices. Second, we surveyed researchers identified by the systematic review and their affiliated institutions to understand researcher attitudes towards compensation and any experienced barriers and challenges to offering financial compensation to patient partners. Third, we conducted a scoping review to synthesize available guidance and policy documents that inform patient partner compensation. Broadly, these projects found that: 1) reporting of patient partner financial compensation is modest and non-financial methods of compensation (e.g., co-authorship) are reported more often, 2) researchers are generally positive about their abilities and intend to offer financial compensation to patient partners, however institutional barriers including lack of policy or support persist, and 3) the majority of identified guidance recommend offering financial compensation to patient partners and discuss benefits of such practices including fostering a sense of equality between researchers and patient partners. Findings from this thesis may influence research practices by informing stakeholders of the benefits of offering financial compensation to patient partners and guiding the development of compensation strategies. Lastly, findings may inform implementation strategies at the institutional and funder level, including adoption of guidance and procedure, to better support researchers in navigating compensation.
Least Squares estimation of two ordered monotone regression curves
Creators: name: Balabdaoui, Fadoua
name: Rufibach, Kaspar
name: Santambrogio, Filippo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: In this paper, we consider the problem of finding the Least Squares estimators of two isotonic regression curves $g^\circ_1$ and $g^\circ_2$ under the additional constraint that they are ordered; e.g., $g^\circ_1 \le g^\circ_2$. Given two sets of $n$ data points $y_1, ..., y_n$ and $z_1, >...,z_n$ observed at (the same) design points, the estimates of the true curves are obtained by minimizing the weighted Least Squares criterion $L_2(a, b) = \sum_{j=1}^n (y_j - a_j)^2 w_{1,j}+ \sum_{j=1}^n (z_j - b_j)^2 w_{2,j}$ over the class of pairs of vectors $(a, b) \in \mathbb{R}^n \times \mathbb{R}^n $ such that $a_1 \le a_2 \le ...\le a_n $, $b_1 \le b_2 \le ...\le b_n $, and $a_i \le b_i, i=1, ...,n$. The characterization of the estimators is established. To compute these estimators, we use an iterative projected subgradient algorithm, where the projection is performed with a "generalized" pool-adjacent-violaters algorithm (PAVA), a byproduct of this work. Then, we apply the estimation method to real data from mechanical engineering.
description: 23 pages, 2 figures. Second revised version according to reviewer comments
Measurement of the sum of WW and WZ production with W+dijet events in pp collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of the inclusive WW+WZ diboson production cross section in proton-proton collisions is reported, based on events containing a leptonically decaying W boson and exactly two jets. The data sample, collected at sqrt(s) = 7 TeV with the CMS detector at the LHC, corresponds to an integrated luminosity of 5.0 inverse femtobarns. The measured value of the sum of the inclusive WW and WZ cross sections is sigma(pp to WW+WZ) = 68.9 +/- 8.7 (stat.) +/- 9.7 (syst.) +/- 1.5 (lum.) pb, consistent with the standard model prediction of 65.6 +/- 2.2 pb. This is the first measurement of WW+WZ production in pp collisions using this signature. No evidence for anomalous triple gauge couplings is found and upper limits are set on their magnitudes.
description: Replaced with published version. Added journal reference and DOI
Selection models with monotone weight functions in meta analysis
Creators: name: Rufibach, Kaspar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Publication bias, the fact that studies identified for inclusion in a meta analysis do not represent all studies on the topic of interest, is commonly recognized as a threat to the validity of the results of a meta analysis. One way to explicitly model publication bias is via selection models or weighted probability distributions. We adopt the nonparametric approach initially introduced by Dear (1992) but impose that the weight function $w$ is monotonely non-increasing as a function of the $p$-value. Since in meta analysis one typically only has few studies or "observations", regularization of the estimation problem seems sensible. In addition, virtually all parametric weight functions proposed so far in the literature are in fact decreasing. We discuss how to estimate a decreasing weight function in the above model and illustrate the new methodology on two well-known examples. The new approach potentially offers more insight in the selection process than other methods and is more flexible than parametric approaches. Some basic properties of the log-likelihood function and computation of a $p$-value quantifying the evidence against the null hypothesis of a constant weight function are indicated. In addition, we provide an approximate selection bias adjusted profile likelihood confidence interval for the treatment effect. The corresponding software and the datasets used to illustrate it are provided as the R package selectMeta. This enables full reproducibility of the results in this paper.
description: 15 pages, 2 figures. Some minor changes according to reviewer comments
A smooth ROC curve estimator based on log-concave density estimates
Creators: name: Rufibach, Kaspar
Publisher: name: arXiv
Year: 2011
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We introduce a new smooth estimator of the ROC curve based on log-concave density estimates of the constituent distributions. We show that our estimate is asymptotically equivalent to the empirical ROC curve if the underlying densities are in fact log-concave. In addition, we empirically show that our proposed estimator exhibits an efficiency gain for finite sample sizes with respect to the standard empirical estimate in various scenarios and that it is only slightly less efficient, if at all, compared to the fully parametric binormal estimate in case the underlying distributions are normal. The estimator is also quite robust against modest deviations from the log-concavity assumption. We show that bootstrap confidence intervals for the value of the ROC curve at a fixed false positive fraction based on the new estimate are on average shorter compared to the approach by Zhou & Qin (2005), while maintaining coverage probability. Computation of our proposed estimate uses the R package logcondens that implements univariate log-concave density estimation and can be done very efficiently using only one line of code. These obtained results lead us to advocate our estimate for a wide range of scenarios.
description: 23 pages, 6 figures, 2 tables
Supersymmetric Dark Matter Sectors
Creators: name: Arnold, Jonathan M.
name: Perez, Pavel Fileviez
name: Fornal, Bartosz
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate the properties of a dark matter sector where supersymmetry is a good symmetry. In this context we find that the stability of the dark matter candidate is possible even when R-parity is broken in the visible sector. In order to illustrate the idea we investigate a simple scenario where the dark matter candidate is the lightest scalar field in the dark sector which annihilates mainly into two sfermions when these channels are available. We study the relic density constraints and the predictions for the dark matter detection experiments.
description: minor corrections, to appear in Physics Letters B
Multi-height observations of magnetoacoustic cut-off frequency in a sunspot atmosphere
Creators: name: Yuan, Ding
name: Sych, R.
name: Reznikova, V. E.
name: Nakariakov, V. M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We used the Pixelised Wavelet Filtering (PWF) method to compute narrow-band power maps of SDO/AIA imaging datasets in the 1700 Å, 1600 Å and 304 Å bandpasses that correspond to different heights. The cut-off frequency was defined as contours where the spectral power droped to the median level. It was measured as a function of the spatial location. We inferred the magnetic field inclination according to the MAG wave theory in the low-$β$ limit and compared it with the potential field extrapolation.{We analysed intensity oscillations in a symmetric sunspot AR11131(08 Dec 2010) and an asymmetric sunspot AR11330 (27 Oct 2011). We reconstructed the magnetic field inclination in the radial direction for the symmetric sunspot and in both radial and azimuthal directions for the asymmetric sunspot. We observed 3D variation of the main oscillation periods in sunspots. We found that shorter-period oscillations were mostly constrained in sunspot umbrae, while longer-period oscillations formed an annular shape enclosing the umbra. Longer periods are found to be distributed further away from the sunspot centre. Our results indicate that 3-min oscillation are generated in the chromosphere, possibly by the acoustic resonator model, while 5-min and longer-period oscillations seemed to originate in a level under the photosphere. The reconstructed field inclinations gives the values of the field inclination that are systematically larger than the values obtained by the potential field extrapolation. The inclined magnetic field line can account for 60-80% of cut-offfrequency lowering only.
description: 10 pages, 11 figures
Asymptotics of the discrete log-concave maximum likelihood estimator and related applications
Creators: name: Balabdaoui, Fadoua
name: Jankowski, Hanna
name: Rufibach, Kaspar
name: Pavlides, Marios
Publisher: name: arXiv
Year: 2011
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The assumption of log-concavity is a flexible and appealing nonparametric shape constraint in distribution modelling. In this work, we study the log-concave maximum likelihood estimator (MLE) of a probability mass function (pmf). We show that the MLE is strongly consistent and derive its pointwise asymptotic theory under both the well- and misspecified setting. Our asymptotic results are used to calculate confidence intervals for the true log-concave pmf. Both the MLE and the associated confidence intervals may be easily computed using the R package logcondiscr. We illustrate our theoretical results using recent data from the H1N1 pandemic in Ontario, Canada.
description: 21 pages, 7 Figures
La Depressione Nel Luogo Di Lavoro - Traduzione Autorizzata Del Report Prodotto Dalla Federazione Mondiale Per La Salute Mentale (Wfmh) "Depression In The Workplace" (Http://Wfmh.Com/Wpcontent/ Uploads/201 4/06/Depression-In-The-Workplace_Pdf_V02.Pdf).
Creators: name: Fellone, Lucio
Publisher: name: Zenodo
Year: 2014
Subjects: Depressione, Luoghi di lavoro

description: TRADUZIONE AUTORIZZATA DEL REPORT PRODOTTO DALLA FEDERAZIONE MONDIALE PER LA SALUTE MENTALE (WFMH) "DEPRESSION IN THE WORKPLACE". UNA BREVE INTRODUZIONE E' DISPONIBILE IN INGLESE SUL SITO UFFICIALE DELLA WFMH ALL'INDIRIZZO http://wfmh.com/initiatives/depression-in-the-workplace/

IL DOCUMENTO ORIGINALE IN INGLESE È DISPONIBILE ALLA PAGINA http://wfmh.com/wpcontent/uploads/201 4/06/Depression-in-the-Workplace_PDF_v02.pdf.
description: https://updatingmdl.files.wordpress.com/2014/02/la-depressione-sul-luogo-di-lavoro-depression-in-the-workplace-wfmh.pdf
description: {"references": ["Original article:", "Depression in the Workplace by World Federation for Mental Health (http://wfmh.com/wpcontent/", "uploads/201 4/06/Depression-in-the-Workplace_PDF_v02.pdf)."]}
Copula Correlation: An Equitable Dependence Measure and Extension of Pearson's Correlation
Creators: name: Ding, A. Adam
name: Li, Yi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: In Science, Reshef et al. (2011) proposed the concept of equitability for measures of dependence between two random variables. To this end, they proposed a novel measure, the maximal information coefficient (MIC). Recently a PNAS paper (Kinney and Atwal, 2014) gave a mathematical definition for equitability. They proved that MIC in fact is not equitable, while a fundamental information theoretic measure, the mutual information (MI), is self-equitable. In this paper, we show that MI also does not correctly reflect the proportion of deterministic signals hidden in noisy data. We propose a new equitability definition based on this scenario. The copula correlation (Ccor), based on the L1-distance of copula density, is shown to be equitable under both definitions. We also prove theoretically that Ccor is much easier to estimate than MI. Numerical studies illustrate the properties of the measures.
Comunicato Stampa N°227 Dell'Agenzia Internazionale Per La Ricerca Sul Cancro (Iarc) "Iarc Calls On Countries With High Stomach Cancer Burden To Act To Prevent The Disease" Pubblicato Il 24 Settembre 2014.
Creators: name: Fellone, Lucio
Publisher: name: Zenodo
Year: 2014
Subjects: Tumore dello stomaco, Helicobacter pylori, Prevenzione

description: VERSIONE IN LINGUA ITALIANA AUTORIZZATA DEL COMUNICATO STAMPA N°227 DELL'AGENZIA INTERNAZIONALE PER LA RICERCA SUL CANCRO (IARC) "IARC CALLS ON COUNTRIES WITH HIGH STOMACH CANCER BURDEN TO ACT TO PREVENT THE DISEASE" PUBBLICATO IL 24 SETTEMBRE 2014.

IL DOCUMENTO ORIGINALE IN INGLESE È DISPONIBILE ALLA PAGINA http://www.iarc.fr/en/mediacentre/pr/2014/pdfs/pr227_E.pdf.

Authorized Italian translation of IARC Press Release N°227.

ORIGINAL IARC PRESS RELEASE N°227, 24 SEPTEMBER 2014, "IARC CALLS ON COUNTRIES WITH HIGH STOMACH CANCER BURDEN TO ACT TO PREVENT THE DISEASE". AVIALABLE ON: http://www.iarc.fr/en/mediacentre/pr/2014/pdfs/pr227_E.pdf.
description: https://updatingmdl.files.wordpress.com/2014/02/comunicato-stampa-n-227-autorizzato-dalla-iarc.pdf
description: {"references": ["Original IARC Press Release N\u00b0227  \"IARC CALLS ON COUNTRIES WITH HIGH", "STOMACH CANCER BURDEN TO ACT TO PREVENT THE DISEASE\"  (24 September 2014)", "http://www.iarc.fr/en/mediacentre/pr/201 4/pdfs/pr227_E.pdf"]}
T. C. Bringmann, Handbuch der Diplomatie 1815-1963. Auswärtige Missionschefs in Deutschland und deutsche Missionschefs im Ausland von Metternich bis Adenauer, 2001
Creators: name: Allain, Jean-Claude
Publisher: name: Francia
Year: 2019

description: T. C. Bringmann, Handbuch der Diplomatie 1815-1963. Auswärtige Missionschefs in Deutschland und deutsche Missionschefs im Ausland von Metternich bis Adenauer, 2001 (J.-C. Allain)
description: Francia, Bd. 30 Nr. 3 (2003)
Comunicato Stampa N°226 Dell'Agenzia Internazionale Per La Ricerca Sul Cancro (Iarc) "New Report Shows That Hpv Vaccine Trials Can Be Significantly Shortened" Pubblicato Il 25 Agosto 2014
Creators: name: Fellone, Lucio
Publisher: name: Zenodo
Year: 2014
Subjects: Tumore, Papillomavirus umano, HPV, Vaccino anti-HPV

description: VERSIONE IN LINGUA ITALIANA AUTORIZZATA DEL COMUNICATO STAMPA N°226 DELL'AGENZIA INTERNAZIONALE PER LA RICERCA SUL CANCRO (IARC) "NEW REPORT SHOWS THAT HPV VACCINE TRIALS CAN BE SIGNIFICANTLY SHORTENED" PUBBLICATO IL 25 AGOSTO 2014.

IL DOCUMENTO ORIGINALE IN INGLESE È DISPONIBILE ALLA PAGINA http://www.iarc.fr/en/mediacentre/pr/2014/pdfs/pr226_E.pdf.

Authorized Italian translation of the IARC Press Release N°226.

Original IARC Press Release N°226 "NEW REPORT SHOWS THAT HPV VACCINE TRIALS CAN BE SIGNIFICANTLY SHORTENED" available on http://www.iarc.fr/en/mediacentre/pr/201 4/pdfs/pr226_E.pdf
description: https://updatingmdl.files.wordpress.com/2014/02/comunicato-stampa-n-226-autorizzato-dalla-iarc.pdf
description: {"references": ["Original IARC Press Release N\u00b0226 \"NEW REPORT SHOWS THAT HPV VACCINE", "TRIALS CAN BE SIGNIFICANTLY SHORTENED\" (25 August 2014) http://www.iarc.fr/en/mediacentre/", "pr/2014/pdfs/pr226_E.pdf"]}
Schubert calculus of Richardson varieties stable under spherical Levi subgroups
Creators: name: Wyser, Benjamin J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We observe that the expansion in the basis of Schubert cycles for $H^*(G/B)$ of the class of a Richardson variety stable under a spherical Levi subgroup is described by a theorem of Brion. Using this observation, along with a combinatorial model of the poset of certain symmetric subgroup orbit closures, we give positive combinatorial descriptions of certain Schubert structure constants on the full flag variety in type $A$. Namely, we describe $c_{u,v}^w$ when $u$ and $v$ are inverse to Grassmannian permutations with unique descents at $p$ and $q$, respectively. We offer some conjectures for similar rules in types $B$ and $D$, associated to Richardson varieties stable under spherical Levi subgroups of $SO(2n+1,\C)$ and $SO(2n,\C)$, respectively.
description: Section 4 significantly shortened, and other minor changes made as suggested by referees. Final version, to appear in Journal of Algebraic Combinatorics
S.-L. Hoffmann, Die Politik der Geselligkeit. Freimaurerlogen in der deutschen Bürgergesellschaft 1840-1918, 2000
Creators: name: Walle, Marianne
Publisher: name: Francia
Year: 2019

description: S.-L. Hoffmann, Die Politik der Geselligkeit. Freimaurerlogen in der deutschen Bürgergesellschaft 1840-1918, 2000 (M. Walle)
description: Francia, Bd. 30 Nr. 3 (2003)
Real holomorphic curves and invariant global surfaces of section
Creators: name: Frauenfelder, Urs
name: Kang, Jungsoo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Symplectic Geometry (math.SG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: In this paper we prove that a dynamically convex starshaped hypersurface in $\mathbb{C}^2$ which is invariant under complex conjugation admits a global surface of section which is invariant under conjugation as well. We obtain this invariant global surface by embedding $\mathbb{C}^2$ into $\mathbb{CP}^2$ and applying a stretching argument to real holomorphic curves in $\mathbb{CP}^2$. The motivation for this result arises from recent progress in applying holomorphic curve techniques to gain a deeper understanding on the dynamics of the restricted three body problem.
description: 36 pages
Search for supersymmetry in events with photons and low missing transverse energy in pp collisions at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Many models of new physics, including versions of supersymmetry (SUSY), predict production of events with low missing transverse energy, electroweak gauge bosons, and many energetic final-state particles. The stealth SUSY model yields this signature while conserving R-parity by means of a new hidden sector in which SUSY is approximately conserved. The results of a general search for new physics, with no requirement on missing transverse energy, in events with two photons and four or more hadronic jets are reported. The study is based on a sample of proton-proton collisions at sqrt(s) = 7 TeV corresponding to 4.96 inverse femtobarns of integrated luminosity collected with the CMS detector in 2011. Based on good agreement between the data and the standard model expectation, the data are used to determine model-independent cross-section limits and a limit on the squark mass in the framework of stealth SUSY. With this first study of its kind, squark masses less than 1430 GeV are excluded at the 95% confidence level.
description: Replaced with published version. Added journal reference and DOI
Pluricanonical maps of stable log surfaces
Creators: name: Liu, Wenfei
name: Rollenske, Sönke
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J10, 14C20

description: Stable surfaces and their log analogues are the type of varieties naturally occuring as boundary points in moduli spaces. We extend classical results of Kodaira and Bombieri to this more general setting: if $(X,Δ)$ is a stable log surface with reduced boundary (possibly empty) and $I$ is its global index, then $4I(K_X+Δ)$ is base-point-free and $8I(K_X+Δ)$ is very ample. These bounds can be improved under further assumptions on the singularities or invariants, for example, $5(K_X+Δ)$ is very ample if $(X,Δ)$ has semi-canonical singularities.
description: v2: improved section on vanishing (removing some gaps pointed out by the referee), Thm. 6.1 now treats the full (log-)canonical ring, fixed many typos; v3: fixed some typos
S. Luzzatto, L'impôt du sang. La gauche française à l'épreuve de la guerre mondiale (1900-1945), traduit de l'italien par S. Carpentari Messina, 1996
Creators: name: Rathel, Thomas
Publisher: name: Francia
Year: 2019

description: S. Luzzatto, L'impôt du sang. La gauche française à l'épreuve de la guerre mondiale (1900-1945), traduit de l'italien par S. Carpentari Messina, 1996 (T. Raithel)
description: Francia, Bd. 30 Nr. 3 (2003)
On the coupling of vector fields to the Gauss-Bonnet invariant
Creators: name: Bueno-Sánchez, Juan C.
name: Orjuela-Quintana, J. Bayron
name: Valenzuela-Toledo, César A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Inflationary models including vector fields have attracted a great deal of attention over the past decade. Such an interest owes to the fact that they might contribute to, or even be fully responsible for, the curvature perturbation imprinted in the cosmic microwave background. However, the necessary breaking of the vector field's conformal invariance during inflation is not without problems. In recent years, it has been realized that a number of instabilities endangering the consistency of the theory arise when the conformal invariance is broken by means of a non-minimal coupling to gravity. In this paper, we consider a massive vector field non-minimally coupled to gravity through the Gauss-Bonnet invariant, and investigate whether the vector can play the role of a curvaton while evading the emergence of instabilities and preserves the large-scale isotropy.
description: Typos corrected, some clarifying comments added. Matches the published version
Narrow Atomic Features from Rapidly Spinning Neutron Stars
Creators: name: Baubock, Michi
name: Psaltis, Dimitrios
name: Ozel, Feryal
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Neutron stars spinning at moderate rates (~300-600Hz) become oblate in shape and acquire a nonzero quadrupole moment. In this paper, we calculate profiles of atomic features from such neutron stars using a ray-tracing algorithm in the Hartle-Thorne approximation. We show that line profiles acquire cores that are much narrower than the widths expected from pure Doppler effects for a large range of observer inclinations. As a result, the effects of both the oblateness and the quadrupole moments of neutron stars need to be taken into account when aiming to measure neutron star radii from rotationally broadened lines. Moreover, the presence of these narrow cores substantially increases the likelihood of detecting atomic lines from rapidly spinning neutron stars.
description: 7 pages, 8 figures, accepted to ApJ
Experimental observation of chimera and cluster states in a minimal globally coupled network
Creators: name: Hart, Joseph D.
name: Bansal, Kanika
name: Murphy, Thomas E.
name: Roy, Rajarshi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: A "chimera state" is a dynamical pattern that occurs in a network of coupled identical oscillators when the symmetry of the oscillator population is broken into synchronous and asynchronous parts. We report the experimental observation of chimera and cluster states in a network of four globally coupled chaotic opto-electronic oscillators. This is the minimal network that can support chimera states, and our study provides new insight into the fundamental mechanisms underlying their formation. We use a unified approach to determine the stability of all the observed partially synchronous patterns, highlighting the close relationship between chimera and cluster states as belonging to the broader phenomenon of partial synchronization. Our approach is general in terms of network size and connectivity. We also find that chimera states often appear in regions of multistability between global, cluster, and desynchronized states.
Separable factor analysis with applications to mortality data
Creators: name: Fosdick, Bailey K.
name: Hoff, Peter D.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Human mortality data sets can be expressed as multiway data arrays, the dimensions of which correspond to categories by which mortality rates are reported, such as age, sex, country and year. Regression models for such data typically assume an independent error distribution or an error model that allows for dependence along at most one or two dimensions of the data array. However, failing to account for other dependencies can lead to inefficient estimates of regression parameters, inaccurate standard errors and poor predictions. An alternative to assuming independent errors is to allow for dependence along each dimension of the array using a separable covariance model. However, the number of parameters in this model increases rapidly with the dimensions of the array and, for many arrays, maximum likelihood estimates of the covariance parameters do not exist. In this paper, we propose a submodel of the separable covariance model that estimates the covariance matrix for each dimension as having factor analytic structure. This model can be viewed as an extension of factor analysis to array-valued data, as it uses a factor model to estimate the covariance along each dimension of the array. We discuss properties of this model as they relate to ordinary factor analysis, describe maximum likelihood and Bayesian estimation methods, and provide a likelihood ratio testing procedure for selecting the factor model ranks. We apply this methodology to the analysis of data from the Human Mortality Database, and show in a cross-validation experiment how it outperforms simpler methods. Additionally, we use this model to impute mortality rates for countries that have no mortality data for several years. Unlike other approaches, our methodology is able to estimate similarities between the mortality rates of countries, time periods and sexes, and use this information to assist with the imputations.
description: Published in at http://dx.doi.org/10.1214/13-AOAS694 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Analysis of the charmed mesons $D_{1}^{*}(2680)$, $D_{3}^{*}(2760)$ and $D_{2}^{*}(3000)$
Creators: name: Yu, Guo Liang
name: Wang, Zhi Gang
name: Li, Zhen Yu
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this work, we systematically study the strong decay behaviors of the charmed mesons $D_{1}^{*}(2680)$, $D_{3}^{*}(2760)$ and $D_{2}^{*}(3000)$ reported by the LHCb collaboration. By comparing the masses and the decay properties with the results of the experiment, we assigned these newly observed mesons as the $2S\frac{1}{2}1^{-}$, $1D\frac{5}{2}3^{-}$ and $1F\frac{5}{2}2^{+}$ states respectively. As a byproduct, we also study the strong decays of the unobserved $2P\frac{3}{2}2^{+}$ and $2F\frac{5}{2}2^{+}$ charmed mesons, which is helpful to the future experiments in searching for these charmed mesons.
description: arXiv admin note: text overlap with arXiv:0803.0106 by other authors
Scattering resonances in graphene
Creators: name: Nazarov, V. U.
name: Silkin, V. M.
name: Krasovskii, E. E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We address the two-dimensional band-structure of graphene above the vacuum level in the context of discrete states immersed in the three-dimensional continuum. Scattering resonances are discovered that originate from the coupling of the in-plane and perpendicular motions, as elucidated by the analysis of an exactly solvable model. Some of the resonances turn into true bound states at high-symmetry $\kv$ vectors. {\it Ab initio} scattering theory verifies the existence of the resonances in realistic graphene and shows that they lead to a total reflection of the incident electron below and total transmission above the resonance energy.
description: 5 pages, 4 figures
Kataloge und Museumsberichte
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Vol 3 No 1 (1950): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege