cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Filter for the Circuit Constraint
Creators: name: Genç-Kaya, Latife
name: Hooker, John N.
Publisher: name: Carnegie Mellon University
Year: 1987
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: We present an incomplete filtering algorithm for the circuit constraint. The filter removes redundant values by eliminating nonhamiltonian edges from the associated graph. We identify nonhamiltonian edges by analyzing a smaller graph with labeled edges that is defined on a separator of the original graph. The complexity of the procedure for each separator S is approximately O(|S|5).We found that it identified all infeasible instances and eliminated about one-third of the redundant domain elements in feasible instances.
Transient chaos enforces uncertainty in the British power grid
Creators: name: Halekotte, Lukas
name: Vanselow, Anna
name: Feudel, Ulrike
Publisher: name: arXiv
Year: 2021
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Multistability is a common phenomenon which naturally occurs in complex networks. If coexisting attractors are numerous and their basins of attraction are complexly interwoven, the long-term response to a perturbation can be highly uncertain. We examine the uncertainty in the outcome of perturbations to the synchronous state in a Kuramoto-like representation of the British power grid. Based on local basin landscapes which correspond to single-node perturbations, we demonstrate that the uncertainty shows strong spatial variability. While perturbations at many nodes only allow for a few outcomes, other local landscapes show extreme complexity with more than a hundred basins. Particularly complex domains in the latter can be related to unstable invariant chaotic sets of saddle type. Most importantly, we show that the characteristic dynamics on these chaotic saddles can be associated with certain topological structures of the network. We find that one particular tree-like substructure allows for the chaotic response to perturbations at nodes in the north of Great Britain. The interplay with other peripheral motifs increases the uncertainty in the system response even further.
Lectures on Symmetric Tensor Categories
Creators: name: Etingof, Pavel
name: Kannan, Arun S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: Category Theory (math.CT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: This is an expanded version of the notes by the second author of the lectures on symmetric tensor categories given by the first author at Ohio State University in March 2019 and later at ICRA-2020 in November 2020. We review some aspects of the current state of the theory of symmetric tensor categories and discuss their applications, including ones unavailable in the literature.
description: 34 pages, latex; v2 discusses results of the new paper [CEO], and derives stronger corollaries in the appendix
Magnetic quadrupole moment of $W$-boson in Kobayashi-Maskawa model
Creators: name: Khriplovich, I. B.
name: Pospelov, M. E.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Magnetic quadrupole moment of $W$-boson in Kobayashi-Maskawa model, I.B. Khriplovich and M.E. Pospelov, BUDKERINP 93--88 Due to CP-invariance violation a vector particle can acquire T- and P-odd electromagnetic moment, magnetic quadrupole one. The W-boson magnetic quadrupole moment is calculated in the Kobayashi-Maskawa model. This is the only known CP-odd moment arising in this model in two-loop approximation.
description: 9 pages, BUDKERINP 93--88
Portable multi-node LQCD Monte Carlo simulations using OpenACC
Creators: name: Bonati, Claudio
name: Calore, Enrico
name: D'Elia, Massimo
name: Mesiti, Michele
name: Negro, Francesco
name: Sanfilippo, Francesco
name: Schifano, Sebastiano Fabio
name: Silvi, Giorgio
name: Tripiccione, Raffaele
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: This paper describes a state-of-the-art parallel Lattice QCD Monte Carlo code for staggered fermions, purposely designed to be portable across different computer architectures, including GPUs and commodity CPUs. Portability is achieved using the OpenACC parallel programming model, used to develop a code that can be compiled for several processor architectures. The paper focuses on parallelization on multiple computing nodes using OpenACC to manage parallelism within the node, and OpenMPI to manage parallelism among the nodes. We first discuss the available strategies to be adopted to maximize performances, we then describe selected relevant details of the code, and finally measure the level of performance and scaling-performance that we are able to achieve. The work focuses mainly on GPUs, which offer a significantly high level of performances for this application, but also compares with results measured on other processors.
description: 22 pages, 8 png figures
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 4 (220)]
Creators: name: , Bellina
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1347
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Bellina, Tochter des verstorbenen Bertinus, seinerseits genannt Sargezius, und Frau des Bertollus, Sohn des verstorbenen Petrus de Porauis, aus Gessate, wohnhaft in Ripalta, bestellt Bertrammus und Zoanollus, beide aus Carugo, und Bellotollus aus Desio, alle Bürger Mailands, zu ihren procuratores.
Seismological studies of ZZ Ceti stars. I. The model grid and the application to individual stars
Creators: name: Castanheira, B. G.
name: Kepler, S. O.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We calculate and explore an extensive adiabatic model grid for pulsating white dwarfs with H dominated atmospheres, the ZZ Ceti stars. We also compared the computed modes with the observed ones for five ZZ Ceti stars that are a representative sample of the whole class of pulsators. We describe our new approach for seismological studies, using the relative observed amplitudes to give weights for the periods in the fit and the external mass and temperature determinations as a guide. Our seismological study is clear evidence that seismology is indeed a powerful tool in the study of stellar structure and evolution.
description: 29 pages, 11 figures
Cross-validation: what does it estimate and how well does it do it?
Creators: name: Bates, Stephen
name: Hastie, Trevor
name: Tibshirani, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Cross-validation is a widely-used technique to estimate prediction error, but its behavior is complex and not fully understood. Ideally, one would like to think that cross-validation estimates the prediction error for the model at hand, fit to the training data. We prove that this is not the case for the linear model fit by ordinary least squares; rather it estimates the average prediction error of models fit on other unseen training sets drawn from the same population. We further show that this phenomenon occurs for most popular estimates of prediction error, including data splitting, bootstrapping, and Mallow's Cp. Next, the standard confidence intervals for prediction error derived from cross-validation may have coverage far below the desired level. Because each data point is used for both training and testing, there are correlations among the measured accuracies for each fold, and so the usual estimate of variance is too small. We introduce a nested cross-validation scheme to estimate this variance more accurately, and we show empirically that this modification leads to intervals with approximately correct coverage in many examples where traditional cross-validation intervals fail.
‘She Taught Me’: Factors Consumers Find Important in Nurse Practitioner and Pharmacist Prescriber Services
Creators: name: Officer, Tara
name: Cumming, Jackie
name: McBride-Henry, Karen
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: Uncategorized

description: Abstract Background: Advanced practitioner services, such as those nurse practitioners and pharmacist prescribers provide, are an opportunity to improve health care delivery. In New Zealand, these practitioners remain underutilised, despite research suggesting they offer safe and effective care, and considerable international literature recording patient satisfaction with these roles. This study aimed to explore factors underlying consumer satisfaction with primary health care nurse practitioner and pharmacist prescriber services.Methods: As part of a larger realist evaluation, 21 consumers of advanced practitioner services participated in semi-structured interviews. These interviews were transcribed and coded against context-mechanism-outcome configurations tested and refined throughout the research.Results: Study findings emphasise the importance of consumer confidence in the provider as a mechanism for establishing advanced practitioner roles. Underlying this confidence is a recognition that these practitioners are more accessible, engage at the consumer’s ‘level’, and operate with passion.Conclusions: This research offers learnings to re-engineer service delivery within primary health care to make best use of the entire health care team by including consumers in the design and introduction of new roles.
A Feasibility Pump for Mixed Integer Nonlinear Programs
Creators: name: Bonami, Pierre
name: Cornuejols, Gerard
name: Lodi, Andrea
name: Francois Margot
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: We present an algorithm for finding a feasible solution to a convex mixed integer nonlinear program. This algorithm, called Feasibility Pump, alternates between solving nonlinear programs and mixed integer linear programs. We also discuss how the algorithm can be iterated so as to improve the first solution it finds, as well as its integration within an outer approximation scheme. We report computational results.
Rydberg Wave Packets are Squeezed States
Creators: name: Nieto, Michael Martin
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We point out that Rydberg wave packets (and similar ``coherent" molecular packets) are, in general, squeezed states, rather than the more elementary coherent states. This observation allows a more intuitive understanding of their properties; e.g., their revivals.
description: 7 pages of text plus one figure available in the literature, LA-UR 93-2804, to be published in Quantum Optics, LaTex
Testing for Outliers with Conformal p-values
Creators: name: Bates, Stephen
name: Candès, Emmanuel
name: Lei, Lihua
name: Romano, Yaniv
name: Sesia, Matteo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: This paper studies the construction of p-values for nonparametric outlier detection, taking a multiple-testing perspective. The goal is to test whether new independent samples belong to the same distribution as a reference data set or are outliers. We propose a solution based on conformal inference, a broadly applicable framework which yields p-values that are marginally valid but mutually dependent for different test points. We prove these p-values are positively dependent and enable exact false discovery rate control, although in a relatively weak marginal sense. We then introduce a new method to compute p-values that are both valid conditionally on the training data and independent of each other for different test points; this paves the way to stronger type-I error guarantees. Our results depart from classical conformal inference as we leverage concentration inequalities rather than combinatorial arguments to establish our finite-sample guarantees. Furthermore, our techniques also yield a uniform confidence bound for the false positive rate of any outlier detection algorithm, as a function of the threshold applied to its raw statistics. Finally, the relevance of our results is demonstrated by numerical experiments on real and simulated data.
description: Revision May 24, 2022: added "asymptotic" and "Monte Carlo" conditional calibration methods; added power analyses; updated numerical experiments to include new methods
Capacity-achieving Guessing Random Additive Noise Decoding (GRAND)
Creators: name: Duffy, Ken R.
name: Li, Jiange
name: Médard, Muriel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences
subject: E.4
subject: 94A24

description: We introduce a new algorithm for realizing Maximum Likelihood (ML) decoding in discrete channels with or without memory. In it, the receiver rank orders noise sequences from most likely to least likely. Subtracting noise from the received signal in that order, the first instance that results in a member of the code-book is the ML decoding. We name this algorithm GRAND for Guessing Random Additive Noise Decoding. We establish that GRAND is capacity-achieving when used with random code-books. For rates below capacity we identify error exponents, and for rates beyond capacity we identify success exponents. We determine the scheme's complexity in terms of the number of computations the receiver performs. For rates beyond capacity, this reveals thresholds for the number of guesses by which if a member of the code-book is identified it is likely to be the transmitted code-word. We introduce an approximate ML decoding scheme where the receiver abandons the search after a fixed number of queries, an approach we dub GRANDAB, for GRAND with ABandonment. While not an ML decoder, we establish that the algorithm GRANDAB is also capacity-achieving for an appropriate choice of abandonment threshold, and characterize its complexity, error and success exponents. Worked examples are presented for Markovian noise that indicate these decoding schemes substantially out-perform the brute force decoding approach.
description: IEEE Transactions on Information Theory, to appear
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 26 (24)]
Creators: name: (:Unkn) Unknown
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1555
Subjects: subject: Sonstige geistliche Aussteller
subject: Urkunde
subject: 090

description: Das Kardinalskollegium unterrichtet Ezbischof Filippo Archinto vom Tod des Papstes Marcellus II.
Low mass dilepton radiation at RHIC
Creators: name: Dusling, K.
name: Zahed, I.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this work we discuss the emission of low mass dilepton radiation from a hydrodynamic evolution model of Au-Au collisions and make comparisons with recent PHENIX measurements. The dilepton emission rates from the hadronic phase are treated at finite temperature and baryon density and are completely constrained by broken chiral symmetry in a density expansion. The rates are expressed in terms of vacuum correlators which are measured in $e^+e^-$ annihilation, $τ$ decays and photo-reactions on nucleons and nuclei. We consider two possibilities for the hadronic phase: A chemical equilibrated an off equilibrium hadronic gas. We find that while chemical off-equilibrium helps explain part of the low mass (0.15 $\leq$ M GeV $\leq$ 0.7) enhancement seen in the data there is still a large discrepancy.
description: 8 pages, 12 figures
title: ADCO, Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Cart. 143 (7 H 7), 153 fol, f. 0031r
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2009
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: cartulaire

description: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0031r, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Deuxième cartulaire ou Grand cartulaire de l'abbaye de Molesme, Archives départementales de la Côte-d'Or, Cart. 143 (7 H 7), 153 fol, f. 0031r, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb137389344
description: Provenance: abbaye de Molesme
description: Provenance: http://www.wikidata.org/entity/Q334044
Perturbative QCD Forbidden Charmonium Decays and Gluonia
Creators: name: Anselmino, M.
name: Genovese, M.
name: Kharzeev, D. E.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We address the problem of observed charmonium decays which should be forbidden in perturbative QCD. We examine the model in which these decays proceed through a gluonic component of the $J/Ψ$ and the $η_c$, arising from a mixing of $(c\bar c)$ and glueball states. We give some bounds on the values of the mixing angles and propose the study of the $p \bar{p} \to ϕϕ$ reaction, at $\sqrt{s} \simeq 3$ GeV, as an independent test of the model.
description: 8pages, lateX, DFTT 64-93
Detectability of CMB tensor B modes via delensing with weak lensing galaxy surveys
Creators: name: Marian, Laura
name: Bernstein, Gary M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We analyze the possibility of delensing CMB polarization maps using foreground weak lensing (WL) information. We build an estimator of the CMB lensing potential out of optimally combined projected potential estimators to different source redshift bins. Our estimator is most sensitive to the redshift depth of the WL survey, less so to the shape noise level. Estimators built using galaxy surveys like LSST and SNAP yield a 30-50% reduction in the lensing B-mode power. We illustrate the potential advantages of a 21-cm survey by considering a fiducial WL survey for which we take the redshift depth zmax and the effective angular concentration of sources n as free parameters. For a noise level of 1 muK arcmin in the polarization map itself, as projected for a CMBPol experiment, and a beam with FWHM=10 arcmin, we find that going to zmax=20 at n=100 gal/sqarcmin yields a delensing performance similar to that of a quadratic lensing potential estimator applied to small-scale CMB maps: the lensing B-mode contamination is reduced by almost an order of magnitude. In this case, there is also a reduction by a factor of ~4 in the detectability threshold of the tensor B-mode power. At this CMB noise level, there is little gain from sources with zmax>20. The delensing gains are lost if the CMB beam exceeds ~20 arcmin. The delensing efficiency and useful zmax depend acutely on the CMB map noise level, but beam sizes below 10 arcmin do not help. Delensing via foreground sources does not require arcminute-resolution CMB observations, a substantial practical advantage over the use of CMB observables for delensing.
description: 10 pages, 5 figures; accepted for publication in Physical Review D
Social connectedness and self-perceived health of older adults in New Zealand
Creators: name: Saravanakumar, P
name: Garrett, NKG
name: Van Wissen, Kim
name: Montayre, J
name: McBride-Henry, Karen
Publisher: name: Open Access Victoria University of Wellington | Te Herenga Waka
Year: 2021
Subjects: subject: 111799 Public Health and Health Services not elsewhere classified
subject: FOS: Health sciences
subject: 160799 Social Work not elsewhere classified
subject: FOS: Sociology

description: The objective of this research was to explore social connectedness and associations with self-perceived health amongst older adults in New Zealand at a population level. The data for this analysis were derived from the 2016 Health and Lifestyle Survey, a nationally representative survey administered via face-to-face interviews. The findings from this analysis of 1,374 respondents, all of whom were over the age of 55 years, highlight that being female, belonging to older age groups (above 70 years), being employed full-time or part-time, connecting online with known people, considering cultural connections to be important and not feeling isolated from others are significantly and positively associated with positive self-perceived health. The findings underscore the resilience potential of older adults and importance of social connectedness for positive health and well-being. In addition, the findings reveal target areas that would benefit by intervention and support by health professionals and policy makers.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 31 (15)]
Creators: name: Scottus, Thomas Antonius
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1690
Subjects: subject: Sonstige geistliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Verleihung des Doktorgrades
A dynamic space-time network flow model for city traffic congestion
Creators: name: Zawack, Daniel J.
name: Thompson, Gerald Luther
name: Carnegie Mellon University.Design Research Center.
Publisher: name: Carnegie Mellon University
Year: 2007
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Abstract: "A space-time network is used to model traffic flows over time for a capacitated road transportation system having one-way and two-way streets. Also, for the first time, traffic signal lights which change the network structure are explicitly incorporated into the model. A linear (time) cost per unit flow is associated with each arc, and it is shown that under the model structure, travel time on a street is a piecewise linear convex function of the number of units traveling on that street. Hence congestion effects are explicitly considered while maintaining the linear nature of the model.Two efficient solution methods are proposed. A network flow solution for a multiple source single destination network and a shortest path solution for a single source single destination network. Two examples are presented. The first example has one source and one sink. There is a unimodal buildup of traffic at the source (say a factory) which enters the street network as quickly as its capacity permits and proceeds through the network, stopping at red lights when necessary, towards the sink (a residential area). Computations with this example show that the arrival rate has multiple peaks which are induced by the stop lights. In the second example there are multiple sources and one sink. The results here are similar except that the arrival rate has a single broad peak which is due to the extreme symmetry of the constraints of the problems."
Wise-SrNet: A Novel Architecture for Enhancing Image Classification by Learning Spatial Resolution of Feature Maps
Creators: name: Rahimzadeh, Mohammad
name: Askari, AmirAli
name: Parvin, Soroush
name: Safi, Elnaz
name: Mohammadi, Mohammad Reza
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: One of the main challenges since the advancement of convolutional neural networks is how to connect the extracted feature map to the final classification layer. VGG models used two sets of fully connected layers for the classification part of their architectures, which significantly increased the number of models' weights. ResNet and the next deep convolutional models used the Global Average Pooling (GAP) layer to compress the feature map and feed it to the classification layer. Although using the GAP layer reduces the computational cost, but also causes losing spatial resolution of the feature map, which results in decreasing learning efficiency. In this paper, we aim to tackle this problem by replacing the GAP layer with a new architecture called Wise-SrNet. It is inspired by the depthwise convolutional idea and is designed for processing spatial resolution while not increasing computational cost. We have evaluated our method using three different datasets: Intel Image Classification Challenge, MIT Indoors Scenes, and a part of the ImageNet dataset. We investigated the implementation of our architecture on several models of the Inception, ResNet, and DenseNet families. Applying our architecture has revealed a significant effect on increasing convergence speed and accuracy. Our Experiments on images with 224*224 resolution increased the Top-1 accuracy between 2% to 8% on different datasets and models. Running our models on 512*512 resolution images of the MIT Indoors Scenes dataset showed a notable result of improving the Top-1 accuracy within 3% to 26%. We will also demonstrate the GAP layer's disadvantage when the input images are large and the number of classes is not few. In this circumstance, our proposed architecture can do a great help in enhancing classification results. The code is shared at https://github.com/mr7495/image-classification-spatial.
description: The code is shared at https://github.com/mr7495/image-classification-spatial
A Dynamic Quality Ladder Model with Entry and Exit: Exploring the Equilibrium Correspondence Using the Homotopy Method
Creators: name: Borkovsky, Ron N.
name: Doraszelski, Ulrich
name: Kryukov, Yaroslav
Publisher: name: Carnegie Mellon University
Year: 2009
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: This paper explores the equilibrium correspondence of a dynamic quality ladder model with entry and exit using the homotopy method. The homotopy method facilitates exploring the equilibrium correspondence in a systematic fashion; it is ideally suited for investigating the economic phenomena that arise as one moves through the parameter space and is especially useful in games that have multiple equilibria. We discuss the theory of the homotopy method and its application to dynamic stochastic games. We then present the following results: First, we find that a change in parameterization that increases (decreases) the cost (benefit) of achieving or maintaining any given product quality yields more asymmetric industry structures. Second, we show that the possibility of entry and exit alone gives rise to predatory and limit investment. Third, we illustrate and discuss the multiple equilibria that arise in the quality ladder model, highlighting the presence of entry and exit as a source of multiplicity.
Seglearn: A Python Package for Learning Sequences and Time Series
Creators: name: Burns, David M.
name: Whyne, Cari M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.2.5

description: Seglearn is an open-source python package for machine learning time series or sequences using a sliding window segmentation approach. The implementation provides a flexible pipeline for tackling classification, regression, and forecasting problems with multivariate sequence and contextual data. This package is compatible with scikit-learn and is listed under scikit-learn Related Projects. The package depends on numpy, scipy, and scikit-learn. Seglearn is distributed under the BSD 3-Clause License. Documentation includes a detailed API description, user guide, and examples. Unit tests provide a high degree of code coverage.
Low energy effective theory on a regularized brane in 6D gauged chiral supergravity
Creators: name: Arroja, Frederico
name: Kobayashi, Tsutomu
name: Koyama, Kazuya
name: Shiromizu, Tetsuya
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive the low energy effective theory on a brane in six-dimensional chiral supergravity. The conical 3-brane singularities are resolved by introducing cylindrical codimension one 4-branes whose interiors are capped by a regular spacetime. The effective theory is described by the Brans-Dicke (BD) theory with the BD parameter given by $ω_{\rm BD}=1/2$. The BD field is originated from a modulus which is associated with the scaling symmetry of the system. If the dilaton potentials on the branes preserve the scaling symmetry, the scalar field has an exponential potential in the Einstein frame. We show that the time dependent solutions driven by the modulus in the four-dimensional effective theory can be lifted up to the six-dimensional exact solutions found in the literature. Based on the effective theory, we discuss a possible way to stabilize the modulus to recover standard cosmology and also study the implication for the cosmological constant problem.
description: 12 pages, 1 figure
Fusion frame and its alternative dual in tensor product of Hilbert spaces
Creators: name: Ghosh, Prasenjit
name: Samanta, T. K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 42C15, 46C07

description: We study fusion frame in tensor product of Hilbert spaces and discuss some of its properties. The resolution of the identity operator on a tensor product of Hilbert spaces is being discussed. An alternative dual of a fusion frame in tensor product of Hilbert spaces is being presented.
description: 15 pages. arXiv admin note: text overlap with arXiv:2101.06857
Aspects of Heavy Quark Production in Polarized Proton-Proton Collisions
Creators: name: Karliner, M.
name: Robinett, R. W.
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine the spin-dependence of b-quark production at large transverse momentum in polarized proton-proton collisions. The leading-order (LO) 2 -> 2 subprocesses, g + g -> Q + Q-bar and q+ q-bar -> Q + Q-bar have a large `analyzing power', as measured by the average spin-spin asymmetry , at large p_T, approaching -100%. The contributions from next-to-leading order (NLO) 2 -> 3 processes are also discussed and found to be dominated at large transverse momentum by subprocesses with a large and positive partonic level spin asymmetry leading to strong cancellations with the LO predictions. The results suggest that b-quark production might constitute an interesting test of the spin-dependence of NLO QCD but they also point up the importance of a full calculation of the complete O(α_S^3) spin-dependent corrections for a successful extraction of the polarized gluon distribution. Similarities to gluino pair production are also briefly discussed.
description: 23 pages (LaTeX) + 8 postscript figures encoded through uufiles; PSU/TH/135, TAUP 2099-93
title: Probing the Local Group Medium toward Markarian 421 with Chandra and the Far Ultraviolet Spectroscopic Explorer
Creators: name: Williams, RJ
name: Mathur, S
name: Nicastro, F
name: Elvis, M
name: Drake, JJ
name: Fang, T
name: Fiore, F
name: Krongold, Y
name: Wang, QD
name: Yao, Y
Publisher: name: University of Massachusetts Amherst
Year: 2005
Subjects: subject: Galaxy: halo; intergalactic medium; quasars: absorption lines
subject: Astrophysics and Astronomy

description: This is the pre-published version harvested from ArXiv. The published version is located at http://iopscience.iop.org/0004-637X/631/2/856/
description: We report the detection of highly ionized gas at z ~ 0 seen in resonant UV and X-ray absorption lines toward the z = 0.03 blazar Mrk 421. A total of 13 X-ray and three UV lines were measured (or upper limits derived), including three lines in the O VII K series and Kα transitions from neon, carbon, and nitrogen. From the three O VII lines we derive a 2 σ Doppler parameter constraint of 24 km s-1 < b < 55 km s-1. The FUSE spectrum shows strong Galactic low-velocity O VI λ1032 absorption and a possible weak O VI high-velocity component (HVC). The Doppler parameter of the low-velocity O VI measured with FUSE is ~3 σ higher than that derived from the O VII line ratios, indicating that the O VII and Galactic O VI arise in different phases. This velocity dispersion along with limits on the gas temperature and density from the X-ray line ratios (assuming a single phase with collisional ionization equilibrium plus photoionization) are all consistent with an extragalactic absorber. However, the O VII Doppler parameter is inconsistent with the high temperature required to produce the observed O VIHVC/O VII ratio, implying that the HVC is probably not related to the O VII. In addition, the O VIKα line detected by Chandra implies a column density ~4 times higher than the λ1032 absorption. Although an extragalactic absorber is fully consistent with the measured column density ratios, a Galactic origin cannot be ruled out given the uncertainties in the available data.
Galactic Effects on Habitability
Creators: name: Kaib, Nathan A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The galactic environment has been suspected to influence planetary habitability in many ways. Very metal-poor regions of the Galaxy, or those largely devoid of atoms more massive than H and He, are thought to be unable to form habitable planets. Moreover, if such planets do form, the young system is subjected to close stellar passages while it resides in its stellar birth cluster. Various potential hazards remain after clusters disperse. For instance, central galactic regions may present risks to habitability via nearby supernovae, gamma ray bursts (GRBs), and frequent comet showers. In addition, planets residing within very wide binary star systems are affected by the Galaxy, as local gravitational perturbations from the Galaxy can increase the binary's eccentricity until it destabilizes the planets it hosts. Here we review the most recent work on the main galactic influences over planetary habitability. Although there must be some metallicity limit below which rocky planets cannot form, recent exoplanet surveys show that they form around stars with a very large range of metallicities. Once formed, the probability of star clusters destabilizing planetary systems only becomes high for rare, extremely long-lived clusters. Regarding threats to habitability from supernovae, GRBs, and comet showers, many recent studies suggest that their hazards are more limited than originally thought. Finally, denser regions of the Galaxy enhance the threat that very wide binary companions pose to planetary habitability, but the probability that a very wide binary star disrupts habitability will always be substantially below 100% for any environment. While some Milky Way regions must be more hospitable to habitable planets than others, it is difficult to state that habitable planets are confined to any well-defined region of the Galaxy or that any other particular region of the Galaxy is uninhabitable.
description: Invited review chapter, accepted for publication in the "Handbook of Exoplanets"; 19 pages; 2 figures
Partially-separated Majorana modes in a disordered medium
Creators: name: Zeng, Chuanchang
name: Sharma, Gargee
name: Tewari, Sumanta
name: Stanescu, Tudor
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Focusing on the implications of recent experiments on Majorana zero modes in semiconductor-superconductor (SM-SC) heterostructures, we critically examine the quantization of the zero-bias differential conductance as a possible unambiguous signature of Majorana physics in the presence of disorder. By numerically calculating the zero-bias conductance (ZBC) maps as function of Zeeman splitting and chemical potential for different disorder realizations, we show that the presence of quantized "islands" characterized by a ZBC value (approximately) equal to $2e^2/h$ and having a finite area/volume in a multi-dimensional parameter space represents a unique signature of Majorana physics supporting Majorana zero modes (MZMs) or partially-separated Majorana modes (ps-MMs). We find that in the presence of strong disorder Majorana physics only emerges locally and gives rise to ps-MMs, which, in turn, generate small quantized islands when one of the Majorana modes is located at the end of the system. Observing these small islands may require sample selection and the systematic scanning of a large volume in the control parameter space. Upon decreasing disorder, the quantized islands increase in size and eventually coalesce into large topological regions. Since the presence of MZMs localized at the opposite ends of the system is typically associated with large quantized islands, looking for MZM-induced edge-to-edge correlations is premature in the absence of convincing experimental evidence for (even small) quantized islands. We conclude that the observation of quantized islands demonstrates unambiguously the presence of the key ingredients necessary for Majorana physics, provides an excellent diagnostic tool for evaluating the disorder strength, and, consequently, represents the next natural milestone in the Majorana search.
description: 12 pages, 10 figures. Published version
A Declarative Modeling Framework that Integrates Solution Methods
Creators: name: Hooker, John N.
name: Kim, Hak-Jin
name: G.  Ottosson
Publisher: name: Carnegie Mellon University
Year: 1969
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: Constraint programming offers modeling features and solution methods that are unavailable in mathematical programming but are often flexible and efficient for scheduling and other combinatorial problems. Yet mathematical programming is well suited to declarative modeling languages and is more efficient for some important problem classes. This raises this issue as to whether the two approaches can be combined in a declarative modeling framework. This paper proposes a general declarative modeling system in which the conditional structure of the constraints shows how to integrate any "checker" and any special-purpose "solver". In particular this integrates constraint programming and optimization methods, because the checker can consist of constraint propagation methods, and the solver can be a linear or nonlinear programming routine.
MHV amplitudes and BCFW recursion for Yang-Mills theory in the de Sitter static patch
Creators: name: Albrychiewicz, Emil
name: Neiman, Yasha
name: Tsulaia, Mirian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the scattering problem in the static patch of de Sitter space, i.e. the problem of field evolution between the past and future horizons of a de Sitter observer. We formulate the problem in terms of off-shell fields in Poincare coordinates. This is especially convenient for conformal theories, where the static patch can be viewed as a flat causal diamond, with one tip at the origin and the other at timelike infinity. As an important example, we consider Yang-Mills theory at tree level. We find that static-patch scattering for Yang-Mills is subject to BCFW-like recursion relations. These can reduce any static-patch amplitude to one with N^{-1}MHV helicity structure, dressed by ordinary Minkowski amplitudes. We derive all the N^{-1}MHV static-patch amplitudes from self-dual Yang-Mills field solutions. Using the recursion relations, we then derive from these an infinite set of MHV amplitudes, with arbitrary number of external legs.
description: 40 pages, 3 figures; v2: JHEP version; expanded discussion, references; v3: corrected the kinematics of reading off the final horizon data
A Cross-Cultural View of Corruption
Creators: name: Hooker, John N.
Publisher: name: Carnegie Mellon University
Year: 1998
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: The world is shrinking, but its cultures remain worlds apart, as do its ethical norms. The West views bribery, kickbacks, cronyism and nepotism as unethical, but they are standard practice in many parts of the world. This poses a familiar dilemma for business firms that operate globally: should they engage in what they see as corrupt behavior in order to do business? The position defended here is that firms should always resist corruption, but at the same time understand it from a broader perspective: as behavior that undermines a cultural system. Behavior that is acceptable in one country may be corrupting in another. Businesses must take into account the cultural situation on the ground, or else they may help to disrupt the very system they wish to engage.
Quantum Optimal Transport
Creators: name: Cole, Sam
name: Eckstein, Michał
name: Friedland, Shmuel
name: Życzkowski, Karol
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81P40, 90C22, 15A69

description: We analyze a quantum version of the Monge--Kantorovich optimal transport problem. The quantum transport cost related to a Hermitian cost matrix $C$ is minimized over the set of all bipartite coupling states $ρ^{AB}$ with fixed reduced density matrices $ρ^A$ and $ρ^B$ of size $m$ and $n$. The minimum quantum optimal transport cost $\rT^Q_{C}(ρ^A,ρ^B)$ can be efficiently computed using semidefinite programming. In the case $m=n$ the cost $\rT^Q_{C}$ gives a semidistance if and only if $C$ is positive semidefinite and vanishes exactly on the subspace of symmetric matrices. Furthermore, if $C$ satisfies the above conditions, then $\sqrt{\rT^Q_{C}}$ induces a quantum analogue of the Wasserstein-2 distance. Taking the quantum cost matrix $C^Q$ to be the projector on the antisymmetric subspace, we provide a semi-analytic expression for $\rT^Q_{C^Q}$ for any pair of single-qubit states and show that its square root yields a transport distance on the Bloch ball. Numerical simulations suggest that this property holds also in higher dimensions. Assuming that the cost matrix suffers decoherence and that the density matrices become diagonal, we study the quantum-to-classical transition of the Earth mover's distance, propose a continuous family of interpolating distances, and demonstrate that the quantum transport is cheaper than the classical one. Furthermore, we introduce a related quantity -- the SWAP-fidelity -- and compare its properties with the standard Uhlmann--Jozsa fidelity. We also discuss the quantum optimal transport for general $d$-partite systems.
description: A detailed and expanded version of most mathematical results in arXiv:2102.07787: "Quantum Monge-Kantorovich problem and transport distance between density matrices". 61 pages
PERIOPERATIVE HYPEROXYGENATION FOR REDUCING RISK OF SURGICAL SITE INFECTION IN COLORECTAL SURGERY PATIENTS
Creators: name: Cross, Christina
name: Winkle, Kyla
Publisher: name: Zenodo
Year: 2020
Subjects: Surgical Site Infections (SSI)
perioperative hyperoxygenation
FiO2
colorectal surgery
ETT
guideline
CDC
WHO
oxygen
intubated

description: Surgical Site Infections (SSIs) are a postoperative complication that are most prevalent in colorectal surgical patients. From the years 2016 to 2018, The World Health Organization (WHO) and Centers for Disease Control and Prevention (CDC) developed evidence-based guidelines to address surgical site infections. These guidelines support the use of perioperative hyperoxygenation, the administration of a fraction of inspired oxygen concentration of 80% or higher in the perioperative period. We performed a literature review of the studies used to develop WHO and CDC guidelines as well as all recent studies on the topic. The literature review confirmed that there is an association between perioperative hyperoxygenation and a reduced risk for SSIs in patients with endotracheal tubes undergoing general anesthesia. We then aimed to assess clinician’s use of perioperative hyperoxygenation through collecting data from 26 anesthetic records, which revealed 0% compliance with the WHO and CDC guidelines’ recommendation. This finding prompted our recommendation to develop a clinical protocol and educational guideline designed to provide instruction for use of perioperative hyperoxygenation in intubated colorectal surgery patients.
Slice conformality and Riemann manifolds on quaternions and octonions
Creators: name: Gentili, Graziano
name: Prezelj, Jasna
name: Vlacci, Fabio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30G35, 30C35, 30F99

description: In this paper we establish quaternionic and octonionic analogs of the classical Riemann surfaces. The construction of these manifolds has nice peculiarities and the scrutiny of Bernhard Riemann approach to Riemann surfaces, mainly based on conformality, leads to the definition of slice conformal or slice isothermal parameterization of quaternionic or octonionic Riemann manifolds. These new classes of manifolds include slice regular quaternionic and octonionic curves, graphs of slice regular functions, the $4$ and $8$ dimensional spheres, the helicoidal and catenoidal $4$ and $8$ dimensional manifolds. Using appropriate Riemann manifolds, we also give a unified definition of the quaternionic and octonionic logarithm and $n$-th root function.
description: Published online in: Math. Z. (2022) - (open access)
Modulated Perturbations from Instant Preheating after new Ekpyrosis
Creators: name: Battefeld, Thorsten
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a mechanism to transfer the spectrum of perturbations in a scalar isocurvature field $ξ$ onto the matter content in the radiation era via modulated, instant preheating after ekpyrosis. In this setup, $ξ$ determines the coupling constant relevant for the decay of a preheat matter field into Fermions. The resulting power spectrum is scale invariant if $ξ$ remains close to a scaling solution in new ekpyrotic models of the universe; by construction the spectrum is independent of the detailed physics near the bounce. The process differs from the curvaton mechanism, which has been used recently to revive the ekpyrotic scenario, in that no peculiar behavior of $ξ$ shortly before or during the bounce is needed. In addition, a concrete and efficient realization of reheating after ekpyrosis is provided; this mechanism is not tied to ekpyrotic models, but could equally well be used in other setups, for instance inflationary ones. We estimate non-Gaussianities and find no additional contributions in the most simple realizations, in contrast to models using the curvaton mechanism.
description: 21 pages; v2 references added, minor clarifications