cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Right-veering diffeomorphisms of compact surfaces with boundary II
Creators: name: Honda, Ko
name: Kazez, William H.
name: Matic, Gordana
Publisher: name: arXiv
Year: 2006
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: Primary 57M50; Secondary 53C15

description: We continue our study of the monoid of right-veering diffeomorphisms on a compact oriented surface with nonempty boundary, introduced in [HKM2]. We conduct a detailed study of the case when the surface is a punctured torus; in particular, we exhibit the difference between the monoid of right-veering diffeomorphisms and the monoid of products of positive Dehn twists, with the help of the Rademacher function. We then generalize to the braid group B_n on n strands by relating the signature and the Maslov index. Finally, we discuss the symplectic fillability in the pseudo-Anosov case by comparing with the work of Roberts [Ro1,Ro2].
description: 25 pages, 5 figures
Localized and intense energy conversion in the diffusion region of asymmetric magnetic reconnection
Creators: name: Swisdak, M.
name: Drake, J. F.
name: Price, L.
name: Burch, J. L.
name: Cassak, P. A.
name: Phan, T. -D.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We analyze a high-resolution simulation of magnetopause reconnection observed by the Magnetospheric Multiscale (MMS) mission and explain the occurrence of strongly localized dissipation with an amplitude more than an order of magnitude larger than expected. Unlike symmetric reconnection, wherein reconnection of the ambient reversed magnetic field drives the dissipation, we find the annihilation of the self-generated, out-of-plane (Hall) magnetic field plays the dominant role. Electrons flow along the magnetosheath separatrices, converge in the diffusion region, and jet past the X-point into the magnetosphere. The resulting accumulation of negative charge generates intense parallel electric fields that eject electrons along the magnetospheric separatrices and produce field-aligned beams. Many of these features match MMS observations.
description: Accepted version
Valeriana locusta var. vesicaria Linnaeus, 1753, var. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dipsacales
Caprifoliaceae
Valeriana
Valeriana locusta
Valeriana locusta var. vesicaria

description: Valeriana locusta var. vesicaria, var. nov.
 β. Valeriana caule dichotomo, foliis lanceolatis serratis, calycibus inflatis. Hort. cliff. 16. Roy. lugdb. 235.
 Valeriana cretica, fructu vesicario. Tournef. cor.6. Boerh. lugdb.1. p.75. t.75.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 33, DOI: 10.5281/zenodo.3931989
Interparticle hydrogen bonding can elicit shear jamming in dense suspensions
Creators: name: James, Nicole
name: Han, Endao
name: Jureller, Justin
name: Jaeger, Heinrich
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Dense suspensions of hard particles in a liquid can exhibit strikingly counter-intuitive behavior, such as discontinuous shear thickening (DST) [1-8] and reversible shear jamming (SJ) into a state with finite yield stress [9-13]. Recent studies identified a stress-activated crossover from hydrodynamic interactions to frictional particle contacts to be key for these behaviors [2-4, 6-8, 10, 14]. However, many suspensions exhibit only DST and not SJ. Here we show that particle surface chemistry can play a central role in creating conditions that allow for SJ. We find the system's ability to form interparticle hydrogen bonds when sheared into contact elicits SJ. We demonstrate this with charge-stabilized polymer microspheres and non-spherical cornstarch particles, controlling hydrogen bond formation with solvents. The propensity for SJ is quantified by tensile tests [13] and linked to an enhanced friction by atomic force microscopy. Our results extend the fundamental understanding of the SJ mechanism and open new avenues for designing strongly non-Newtonian fluids.
Dependence of pulsar death line on the equation of state
Creators: name: Zhou, Xia
name: Tong, Hao
name: Zhu, Cui
name: Wang, Na
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Pulsar death line can be defined in $P-\dot{P}$ diagram. Traditionally, radio-loud pulsars are supposed to locate above the death line where is the radio-loud region. With the development of observational equipment, the observational properties of the neutron star are remarkably diverse. In $P-\dot{P}$ diagram, some of the special sources are radio-quiet but lie above the death line. From the definition of the pulsar death line, different equation of states for neutron star or strange star results in different death lines. We discuss the influence of the equation of state on the pulsar death line and the possible link between different neutron star groups. The results show that central compact objects would be the small mass of self-bound strange stars, and rotating radio transients might be old pulsars on the verge of death. We suggest that PSR J2144-3933 is likely to be a large mass pulsar, which would be larger than $2.0\rm{M_{\odot}}$. Multiple observational facts would help us to reveal the nature of pulsars.
description: 7 pages, 5 figures, accepted for publication in MNRAS
Valeriana locusta var. coronata Linnaeus, 1753, var. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dipsacales
Caprifoliaceae
Valeriana
Valeriana locusta
Valeriana locusta var. coronata

description: Valeriana locusta var. coronata, var. nov.
 γ. Valeriana caule dichotomo, foliis lanceolatis dentatis, fructu sexdentato. Hort. cliff. 16. Roy. lugdb. 235.
 Valeriana semine stellato. Bauh. pin. 165.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Generalized conformal structure, dilaton gravity and SYK
Creators: name: Taylor, Marika
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A theory admits generalized conformal structure if the only scale in the quantum theory is set by a dimensionful coupling. SYK is an example of a theory with generalized conformal structure and in this paper we investigate the consequences of this structure for correlation functions and for the holographic realization of SYK. The Ward identities associated with the generalized conformal structure of SYK are implemented holographically in gravity/multiple scalar theories, which always have a parent AdS$_3$ origin. For questions involving only the graviton/running scalar sector, one can always describe the bulk running in terms of a single scalar but multiple running scalars are in general needed once one includes the bulk fields corresponding to all SYK operators. We then explore chaos in holographic theories with generalized conformal structure. The four point function explored by Maldacena, Shenker and Stanford exhibits exactly the same chaotic behaviour in any such theory as in holographic realizations of conformal theories i.e. the dimensionful coupling scale does not affect the chaotic exponential growth.
description: 42 pages, 3 figures
Valeriana locusta var. dentata Linnaeus, 1753, var. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dipsacales
Caprifoliaceae
Valeriana
Valeriana locusta
Valeriana locusta var. dentata

description: Valeriana locusta var. dentata, var. nov.
 δ. Valeriana caule dichotomo, foliis oblongis subserratis, seminis corona tridentata. Hall. helv. 666. Dalib. paris.12.
 Locusta major. Riv. mon.6.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Valeriana locusta var. radiata Linnaeus, 1753, var. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dipsacales
Caprifoliaceae
Valeriana
Valeriana locusta
Valeriana locusta var. radiata

description: Valeriana locusta var. radiata, var. nov.
 ε. Valeriana caule dichotomo, capitulis terminalibus involucro cinctis. Gron. virg.10.
 Valeriana marilandica, foliis oblongis obtusis. Raj. suppl.3. p.244.
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Renormalization of Twist-4 Operators in QCD Bjorken and Ellis-Jaffe Sum Rules
Creators: name: Kawamura, Hiroyuki
name: Uematsu, Tsuneo
name: Yasui, Yoshiaki
name: Kodaira, Jiro
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The QCD effects of twist-4 operators on the first moment of nucleon spin-dependent structure function $g_1(x, Q^2 )$ are studied in the framework of operator product expansion and renormalization group method. We investigate the operator mixing through renormalization of the twist-4 operators including those proportional to the equation of motion by evaluating off-shell Green's functions in the usual covariant gauge as well as in the background gauge. Through this procedure we extract the one-loop anomalous dimension of the spin 1 and twist-4 operator which determines the logarithmic correction to the $1/Q^2$ behavior of the contribution from the twist-4 operators to the first moment of $g_1(x,Q^2)$.
description: 12 pages, LaTeX, 1 Postscript figure, modified version without no changes in the final result
Valeriana mixta Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dipsacales
Caprifoliaceae
Valeriana
Valeriana mixta

description: Valeriana mixta, spec. nov.
 15. Valeriana floribus triandris, caule quadrifido, foliis imis bipinnatifidis, seminis pappo plumoso. Sauv. monsp. 275. †
 Valerianella semine umbilicato hirsuto minore. Moris. umb.
 Habitat Monspelii .
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Relativistic Reflection Modeling in AGN and Related Variability from PCA: A Brief Review
Creators: name: Danehkar, A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: X-ray observations of active galactic nuclei (AGNs) reveal relativistic reflections from the innermost regions of accretion disks, which contain general-relativistic footprints caused by spinning supermassive black holes (SMBH). We anticipate the spin of a SMBH to be stable over the human timeframe, so brightness changes in the high-energy corona above the SMBH should slightly alter relativistic reflection. In this brief review, we discuss the latest developments in modeling relativistic reflection, as well as the rapid small variation in relativistic emission disclosed by the principal component analysis (PCA) of X-ray variability in AGN. PCA studies of X-ray spectra from AGNs have shown that relativistically blurred reflection has negligible fluctuations over the course of observations, which could originate from rapid (intrahour) intrinsic variations in near-horizon accretion flows and photon rings. The PCA technique is an effective way to disclose relativistic reflection from X-ray observations of AGNs, simplifying the complexity of largely variable X-ray data for automated spectral analysis with machine learning algorithms.
description: 31 pages, 2 figures, 1 table, published in Frontiers in Astronomy and Space Sciences (FrASS), proof corrections applied
Valeriana sibirica Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dipsacales
Caprifoliaceae
Valeriana
Valeriana sibirica

description: Valeriana sibirica, spec. nov.
 16. Valeriana floribus tetrandris aequalibus, foliis pinnatifidis, seminibus palea ovali adnatis. Hort. ups.13.
 Valeriana lutea humilis. Amm. ruth. 18. n.25. t.3.
 Habitat in Sibiriae campis. ☉
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Scalable Neural Network Decoders for Higher Dimensional Quantum Codes
Creators: name: Breuckmann, Nikolas P.
name: Ni, Xiaotong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Machine learning has the potential to become an important tool in quantum error correction as it allows the decoder to adapt to the error distribution of a quantum chip. An additional motivation for using neural networks is the fact that they can be evaluated by dedicated hardware which is very fast and consumes little power. Machine learning has been previously applied to decode the surface code. However, these approaches are not scalable as the training has to be redone for every system size which becomes increasingly difficult. In this work the existence of local decoders for higher dimensional codes leads us to use a low-depth convolutional neural network to locally assign a likelihood of error on each qubit. For noiseless syndrome measurements, numerical simulations show that the decoder has a threshold of around $7.1\%$ when applied to the 4D toric code. When the syndrome measurements are noisy, the decoder performs better for larger code sizes when the error probability is low. We also give theoretical and numerical analysis to show how a convolutional neural network is different from the 1-nearest neighbor algorithm, which is a baseline machine learning method.
Hirtella americana Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Malpighiales
Chrysobalanaceae
Hirtella
Hirtella americana

description: Hirtella americana, spec. nov.
 1. Hirtella. Hort. cliff.17. *
 Habitat in America meridionali. ♄
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Residential Wearable RSSI and Accelerometer Measurements with Detailed Annotations
Creators: name: Dallan Byrne
name: Kozlowski, Michal
Publisher: name: figshare
Year: 2018
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 80702 Health Informatics
subject: FOS: Media and communications
subject: 111711 Health Information Systems (incl. Surveillance)
subject: FOS: Health sciences
subject: Applied Computer Science
subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Context
This repository offers smart-home wearable accelerometer and Radio Signal Strength (RSS) data acquired : 1) with low-cost hardware 2) with high-resolution location annotations 3) from four lived-in premises.
Instructions

1. Download and unzip the dataset.

2. Navigate to:
residential_wearable_data_repo_with_location_labels_sub/codes/load_dataset_py

3. Install prerequisites:
pip -r install requirements.txt

4.Run the sample module to load and view the measurements :
python3 src/load_data.py

Further Information

Please cite: Byrne, D., Kozlowski, M., Santos-Rodriguez, R., Piechocki, R. & Craddock, I. Residential wearable RSSI and accelerometer measurements with detailed location annotations. Sci. Data 5, 180168 (2018). https://www.nature.com/articles/sdata2018168/
 Thanks to: Raul Santos-Rodriguez, Robert Piechocki, Ian Craddock, SPHERE IRC team, Beatriz Monsalve-Carcalen and Raimon Fransoy.
Olax zeylanica Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Santalales
Olacaceae
Olax
Olax zeylanica

description: Olax zeylanica, spec. nov.
 1. Olax. Fl. zeyl. 34. * Amoen. acad.1. p.387.
 Arbor stercoraria zeylanica glandifera. Burm. zeyl. 26.
 Habitat in Zeylona . ♄
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Kaiser, Ursula Ulrike: Die Rede von „Wiedergeburt“ im Neuen Testament. Ein metapherntheoretisch orientierter Neuansatz nach 100 Jahren Forschungsgeschichte
Creators: name: Wypadlo, Adrian
Publisher: name: Theologische Revue
Year: 2019

description: Theologische Revue, Bd. 116 (2020): Januar
Weight Shifting Operators and Conformal Blocks
Creators: name: Karateev, Denis
name: Kravchuk, Petr
name: Simmons-Duffin, David
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce a large class of conformally-covariant differential operators and a crossing equation that they obey. Together, these tools dramatically simplify calculations involving operators with spin in conformal field theories. As an application, we derive a formula for a general conformal block (with arbitrary internal and external representations) in terms of derivatives of blocks for external scalars. In particular, our formula gives new expressions for "seed conformal blocks" in 3d and 4d CFTs. We also find simple derivations of identities between external-scalar blocks with different dimensions and internal spins. We comment on additional applications, including derivation of recursion relations for general conformal blocks, reducing inversion formulae for spinning operators to inversion formulae for scalars, and deriving identities between general 6j symbols (Racah-Wigner coefficients/"crossing kernels") of the conformal group.
description: 84 pages
Magneto-polaritons in Weyl semimetals in a strong magnetic field
Creators: name: Long, Zhongqu
name: Wang, Yongrui
name: Erukhimova, Maria
name: Tokman, Mikhail
name: Belyanin, Alexey
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Exotic topological and transport properties of Weyl semimetals generated a lot of excitement in the condensed matter community. Here we show that Weyl semimetals in a strong magnetic field are highly unusual optical materials. The propagation of electromagnetic waves is affected by an interplay between plasmonic response of chiral Weyl fermions and extreme anisotropy induced by a magnetic field. The resulting magneto-polaritons possess a number of peculiar properties, such as hyperbolic dispersion, photonic stop bands, coupling-induced transparency, and broadband polarization conversion. These effects can be used for optical spectroscopy of these materials including detection of the chiral anomaly, or for broadband terahertz/infrared applications.
description: 11 pages, 3 figures
Lieb-Robinson Bound at Finite Temperature
Creators: name: Huang, Zhiqiang
name: Guo, Xiao-Kan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Lieb-Robinson bound shows that the speed of propagating information in a nonrelativistic quantum lattice system is bounded by a finite velocity, which entails the clustering of correlations. In this paper, we extend the Lieb-Robinson bound to quantum systems at finite temperature by calculating the dynamical correlation function at nonzero temperature for systems whose interactions are respectively short-range, exponentially-decaying and long-range. We introduce a simple way of counting the clusters in a cluster expansion by using the combinatoric generating functions of graphs. Limitations and possible applications of the obtained bound are also discussed.
description: 12 pages, 6 figures
Damping Rate and Lyapunov Exponent of a Higgs Field at High Temperature
Creators: name: Biro, T. S.
name: Thoma, M. H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The damping rate of a Higgs field at zero momentum is calculated using the Braaten-Pisarski method and compared to the Lyapunov exponent of the classical SU(2) Yang-Mills Higgs system.
description: 15 pages, REVTex, 6 figures (PostScript)
Tamarindus indica Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Tamarindus
Tamarindus indica

description: Tamarindus indica, spec. nov.
 1. Tamarindus. Hort. cliff. 18. Mat. med. 28. Hort. ups. 15. Fl. zeyl. 14. Roy. lugd. 465.
 Siliqua arabica, quae Tamarindus. Bauh. pin. 403.
 Balam-pulli. Rheed. mal.1. p.39. t.23.
 Habitat in India , America , AEgypto , Arabia . ♄
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 34, DOI: 10.5281/zenodo.3931989
Practical Approach to Initiating SGLT2 Inhibitors in Type 2 Diabetes
Creators: name: Gomez-Peralta, Fernando
name: Abreu, Cristina
name: Lecube, Albert
name: Bellido, Diego
name: Soto, Alfonso
name: Morales, Cristóbal
name: Brito-Sanfiel, Miguel
name: Umpierrez, Guillermo
Publisher: name: Adis Journals
Year: 2018
Subjects: subject: Medicine
subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Article full text
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Cneorum tricoccon Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Sapindales
Rutaceae
Cneorum
Cneorum tricoccon

description: Cneorum tricoccon, spec. nov.
 1. Cneorum. Hort. cliff. 18. Roy. lugdb. 119.
 Chamaelea tricoccos. Bauh. pin. 462.
 Chamaelea. Cam. epit. 973.
 Habitat in Hispaniae , Narbonae glareosis. ♄
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on pages 34-35, DOI: 10.5281/zenodo.3931989
Secrecy Rate of Cooperative MIMO in Presence of a Location Constrained Eavesdropper
Creators: name: Zheng, Zhong
name: Haas, Zygmunt
name: Kieburg, Mario
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: We propose and study the cooperative MIMO architecture to enable and to improve the secrecy transmissions between clusters of mobile devices in the presence of an eavesdropper with certain location constraint. The cooperative MIMO system in this paper (referred to as Reconfigurable Distributed MIMO) is formed by temporarily activating clusters of nearby trusted mobile devices, with each cluster being centrally coordinated by its corresponding cluster head. We assume that the transmitters apply a practical eigen-direction precoding scheme to transmit the confidential signal and artificial noise, while the eavesdropper can be located in multiple possible locations in the proximity. We first obtain the expression of the secrecy rate, where the required average mutual information between the transmitters and the eavesdropper is characterized by closed-form approximations. The proposed approximations are especially useful in the secrecy rate maximization, where the original non-convex problem can be solved by the successive convex approximations. Numerical results show that the secrecy rate can be significantly improved by leveraging the location constraint of the eavesdropper, compared to the existing result. We also demonstrate that the secrecy rate can be further improved by increasing the cluster size.
description: 15 pages, 6 figures. Artificial noise and signal are jointly optimized via successive convex approximation method
On a factorization of second order elliptic operators and applications
Creators: name: Kravchenko, Vladislav V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30G20; 30G35; 35J10; 35J15; 35J45

description: We show that given a nonvanishing particular solution of the equation (divpgrad+q)u=0 (1) the corresponding differential operator can be factorized into a product of two first order operators. The factorization allows us to reduce the equation (1) to a first order equation which in a two-dimensional case is the Vekua equation of a special form. Under quite general conditions on the coefficients p and q we obtain an algorithm which allows us to construct in explicit form the positive formal powers (solutions of the Vekua equation generalizing the usual powers of the variable z). This result means that under quite general conditions one can construct an infinite system of exact solutions of (1) explicitly, and moreover, at least when p and q are real valued this system will be complete in ker(divpgrad+q) in the sense that any solution of (1) in a simply connected domain can be represented as an infinite series of obtained exact solutions which converges uniformly on any compact subset of . Finally we give a similar factorization of the operator (divpgrad+q) in a multidimensional case and obtain a natural generalization of the Vekua equation which is related to second order operators in a similar way as its two-dimensional prototype does.
MACS J0416.1-2403: Impact of line-of-sight structures on strong gravitational lensing modelling of galaxy clusters
Creators: name: Chirivì, G.
name: Suyu, S. H.
name: Grillo, C.
name: Halkola, A.
name: Balestra, I.
name: Caminha, G. B.
name: Mercurio, A.
name: Rosati, P.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Exploiting the powerful tool of strong gravitational lensing by galaxy clusters to study the highest-redshift Universe and cluster mass distributions relies on precise lens mass modelling. In this work, we present the first attempt at modelling line-of-sight mass distribution in addition to that of the cluster, extending previous modelling techniques that assume mass distributions to be on a single lens plane. We focus on the Hubble Frontier Field cluster MACS J0416.1-2403, and our multi-plane model reproduces the observed image positions with a rms offset of ~0.53". Starting from this best-fitting model, we simulate a mock cluster that resembles MACS J0416.1-2403 in order to explore the effects of line-of-sight structures on cluster mass modelling. By systematically analysing the mock cluster under different model assumptions, we find that neglecting the lensing environment has a significant impact on the reconstruction of image positions (rms ~0.3"); accounting for line-of-sight galaxies as if they were at the cluster redshift can partially reduce this offset. Moreover, foreground galaxies are more important to include into the model than the background ones. While the magnification factors of the lensed multiple images are recovered within ~10% for ~95% of them, those ~5% that lie near critical curves can be significantly affected by the exclusion of the lensing environment in the models (up to a factor of ~200). In addition, line-of-sight galaxies cannot explain the apparent discrepancy in the properties of massive subhalos between MACS J0416.1-2403 and N-body simulated clusters. Since our model of MACS J0416.1-2403 with line-of-sight galaxies only reduced modestly the rms offset in the image positions, we conclude that additional complexities, such as more flexible halo shapes, would be needed in future models of MACS J0416.1-2403.
description: 29 pages, 21 figures, submitted to A&A
Overview of supplied files. A sauropod-dominated tracksite from Rubha nam Brathairean (Brothers' Point), Isle of Skye, Scotland
Creators: name: DePolo, Paige E.
name: Brusatte, Stephen L.
name: Challands, Thomas J.
name: Foffa, Davide
name: Ross, Dugald A.
name: Wilkinson, Mark
name: Yi, Hong-Yu
Publisher: name: Geological Society of London
Year: 2018
Subjects: subject: Geology
subject: FOS: Earth and related environmental sciences

description: Overview of supplied files
Diffuse X-Ray Sky in the Galactic Center
Creators: name: Koyama, Katsuji
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Galactic Diffuse X-ray Emission (GDXE) in the Milky Way Galaxy is spatially and spectrally decomposed into the Galactic Center X-ray Emission (GCXE), the Galactic Ridge X-ray Emission (GRXE) and the Galactic Bulge X-ray Emission (GBXE). The X-ray spectra of the GDXE are characterized by the strong K-shell lines of the highly ionized atoms, the brightest are the K-shell transition (principal quantum number transition of $n=2\rightarrow1$) of neutral iron (SXV-He$α$), He-like iron (FeXXV-He$α$) and He-like sulfur (SXV-He$α$) lines. Accordingly, the GDXE is composed of a high-temperature plasma of $\sim$7 keV (HTP) and a low-temperature plasma of $\sim$1 keV (LTP), which emit the FeXXV-He$α$ and SXV-He$α$ lines, respectively. The FeI-K$α$ line is emitted from nearly neutral irons, and hence the third component of the GDXE is a Cool Gas (CG). The FeI-K$α$ distribution in the GCXE region is clumpy (FeI-K$α$ clump), associated with giant molecular cloud (MC) complexes, Sagittarius A, B, C, D and E, in the central molecular zone. The origin of the FeI-K$α$ clumps is the fluorescence and Thomson scattering from the MCs irradiated by past big flares of the super massive black hole Sagittarius A$^*$. The scale heights and equivalent widths of the FeI-K$α$, FeXXV-He$α$, and FeXXVI-Ly$α$ ($n=2\rightarrow1$ transition of H-like iron) lines are different among the GCXE, GBXE and GRXE. Therefore the structure and origin are separately examined. This paper overviews the research history and the present understandings of the GDXE, in particular focus on the origin of the HTP and CG in the GCXE.
description: 46 pages, 9 figures, 15 tables, accepted to PASJ, but some figures are missing from the original PASJ paper (24 figures) due to the memory limit of figures
Dynamical model selection near the quantum-classical boundary
Creators: name: Ralph, Jason F.
name: Toroš, Marko
name: Maskell, Simon
name: Jacobs, Kurt
name: Rashid, Muddassar
name: Setter, Ashley J.
name: Ulbricht, Hendrik
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss a general method of model selection from experimentally recorded time-trace data. This method can be used to distinguish between quantum and classical dynamical models. It can be used in post-selection as well as for real-time analysis, and offers an alternative to statistical tests based on state-reconstruction methods. We examine the conditions that optimize quantum hypothesis testing, maximizing one's ability to discriminate between classical and quantum models. We set upper limits on the temperature and lower limits on the measurement efficiencies required to explore these differences, using a novel experiment in levitated optomechanical systems as an example.
description: 9 pages, 1 figure. Accepted for publication in Physical Review A (Rapid Communication)
The Variance of QSO Counts in Cells
Creators: name: Andreani, P.
name: Cristiani, S.
name: Lucchin, F.
name: Matarrese, S.
name: Moscardini, L.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: {}From three quasar samples with a total of 1038 objects in the redshift range $1.0 ÷2.2$ we measure the variance $σ^2$ of counts in cells of volume $V_u$. By a maximum likelihood analysis applied separately on these samples we obtain estimates of $σ^2(\ell)$, with $\ell \equiv V_u^{1/3}$. The analysis from a single catalog for $\ell = ~40~h^{-1}$ Mpc and from a suitable average over the three catalogs for $\ell = ~60,~80$ and $100~h^{-1}$ Mpc, gives $σ^2(\ell) = 0.46^{+0.27}_{-0.27}$, $0.18^{+0.14}_{-0.15}$, $0.05^{+0.14}_{-0.05}$ and $0.12^{+0.13}_{-0.12}$, respectively, where the $70\%$ confidence ranges account for both sampling errors and statistical fluctuations in the counts. This allows a comparison of QSO clustering on large scales with analogous data recently obtained both for optical and IRAS galaxies: QSOs seem to be more clustered than these galaxies by a biasing factor $b_{QSO}/b_{gal} \sim 1.4 - 2.3$.
description: 13 pages in plain Tex, 5 figures available in postscript in a separate file, submitted to ApJ, DAPD-333
IEA Wind Task 32: Collaborative R&D Roadmap
Creators: name: Clifton, Andrew
name: Schlipf, David
name: Vasiljevic, Nikola
name: Gottschall, Julia
name: Clive, Peter
name: Wüerth, Ines
name: Wagner, Rozenn
name: Nygaard, Nicolai
Publisher: name: Zenodo
Year: 2019
Subjects: wind lidar, roadmap

description: IEA Wind Task 32 coordinates a range of research and development activities for wind lidar for wind energy applications. In order to help Task members and others keep an overview of what's happening in the Task, we have created a visual road map showing these activities. To find out more about specific activities, see the Task 32 website at https://community.ieawind.org/task32/home. This repository includes: A PDF of the roadmap: "IEA_Wind_Task_32__Collaborative_RD_Roadmap.pdf". All of the files required to produce the roadmap using the LaTeX document preparation system:
 IEA Wind Task 32_ Collaborative RD Roadmap.zip. Please note that this document will be updated regularly. Please check for new versions at https://doi.org/10.5281/zenodo.3374354. We welcome feedback on the document. Please go to https://github.com/IEA-Wind-Task-32/white-paper-Task32-RnD-roadmap to find out how you can help improve this document.
description: This version has been published to obtain feedback and may be subject to revision. Readers are encouraged to check for more recent versions of this document at https://doi.org/10.5281/zenodo.3374354.
Semileptonic decays $B\to(π,ρ)eν$ in relativistic quark model
Creators: name: Melikhov, D.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Quark model results for the $B\to π,ρ$ decays are analysed, making use of the dispersion formulation of the model: The form factors at $q^2>0$ are expressed as relativistic invariant double spectral representation over invariant masses of the initial and final mesons through their light--cone wave functions. The dependence of the results on the quark model parameters is studied. For various versions of the quark model the ranges $Γ(\bar B^0\toπ^+e\barν)=(7\pm2)\times10^{12}|V_{ub}|^2\; s^{-1}$, $Γ(\bar B^0\toρ^+e\barν)/Γ(\bar B^0\toπ^+e\barν)=1.45\pm0.1$, and $Γ_L/Γ_T=0.7\pm0.08$ are found. The effects of the constituent quark transition form factor are briefly discussed.
description: latex, 8 pages, 2 figures
Quantitative tomography for continuous variable quantum systems
Creators: name: Landon-Cardinal, Olivier
name: Govia, Luke C. G.
name: Clerk, Aashish A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a continuous variable tomography scheme that reconstructs the Husimi Q-function (Wigner function) by Lagrange interpolation, using measurements of the Q-function (Wigner function) at the Padua points, the optimal sampling points for two dimensional reconstruction. Our approach drastically reduces the number of measurements required compared to using equidistant points on a regular grid, although reanalysis of such experiments is possible. The reconstruction algorithm produces a reconstructed function with exponentially decreasing error and quasi-linear runtime in the number of Padua points. Moreover, using the interpolating polynomial of the Q-function, we present a technique to directly estimate the density matrix elements of the continuous variable state, with only linear propagation of input measurement error. Furthermore, we derive a state-independent analytical bound on this error, such that our estimate of the density matrix is accompanied by a measure of its uncertainty.
description: 4.25 pages, 2 figures (+ 3.5 pages, 4 figures)
Differential transcendence & algebraicity criteria for the series counting weighted quadrant walks
Creators: name: Dreyfus, Thomas
name: Raschel, Kilian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We consider weighted small step walks in the positive quadrant, and provide algebraicity and differential transcendence results for the underlying generating functions: we prove that depending on the probabilities of allowed steps, certain of the generating functions are algebraic over the field of rational functions, while some others do not satisfy any algebraic differential equation with rational function coefficients. Our techniques involve differential Galois theory for difference equations as well as complex analysis (Weierstrass parameterization of elliptic curves). We also extend to the weighted case many key intermediate results, as a theorem of analytic continuation of the generating functions.
description: 36 pages, 9 figures, to appear in Publications math\'ematiques de Besan\c{c}on
Melothria pendula Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Cucurbitales
Cucurbitaceae
Melothria
Melothria pendula

description: Melothria pendula, spec. nov.
 1. Melothria. Hort. cliff. 490. * Hort. ups. 15. Gron. virg. 10. Roy. lugdb. 528.
 Cucumis parva repens virginiana, fructu minimo. Pluk. alm. 123. t.85. f.5.
 Cucumis minima, fructu ovali nigro laevi. Sloan. hist.1. p.227. t.142. f.1.
 Habitat in Canada , Virginia , Jamaica . ☉
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 35, DOI: 10.5281/zenodo.3931989
Fast Deployment of UAV Networks for Optimal Wireless Coverage
Creators: name: Zhang, Xiao
name: Duan, Lingjie
Publisher: name: arXiv
Year: 2017
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Unmanned Aerial Vehicle (UAV) networks have emerged as a promising technique to rapidly provide wireless coverage to a geographical area, where a flying UAV can be fast deployed to serve as cell site. Existing work on UAV-enabled wireless networks overlook the fast UAV deployment for wireless coverage, and such deployment problems have only been studied recently in sensor networks. Unlike sensors, UAVs should be deployed to the air and they are generally different in flying speed, operating altitude and wireless coverage radius. By considering such UAV heterogeneity to cover the whole target area, this paper studies two fast UAV deployment problems: one is to minimize the maximum deployment delay among all UAVs (min-max) for fairness consideration, and the other is to minimize the total deployment delay (min-sum) for efficiency consideration. We prove both min-max and min-sum problems are NP-complete in general. When dispatching UAVs from the same location, we present an optimal algorithm of low computational complexity $O(n^2)$ for the min-max problem. When UAVs are dispatched from different locations, we propose to preserve their location order during deployment and successfully design a fully polynomial time approximation scheme (FPTAS) of computation complexity $O(n^2 \log \frac{1}ε)$ to arbitrarily approach the global optimum with relative error $ε$. The min-sum problem is more challenging. When UAVs are dispatched from the same initial location, we present an approximation algorithm of linear time. As for the general case, we further reformulate it as a dynamic program and propose a pseudo polynomial-time algorithm to solve it optimally.
Constraints on hidden gravitons from fifth-force experiments and stellar energy loss
Creators: name: Cembranos, J. A. R.
name: Maroto, A. L.
name: Villarrubia-Rojo, H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study different phenomenological signatures associated with new spin-2 particles. These new degrees of freedom, that we call hidden gravitons, arise in different high-energy theories such as extra-dimensional models or extensions of General Relativity. At low energies, hidden gravitons can be generally described by the Fierz-Pauli Lagrangian. Their phenomenology is parameterized by two dimensionful constants: their mass and their coupling strength. In this work, we analyze two different sets of constraints. On the one hand, we study potential deviations from the inverse-square law on solar-system and laboratory scales. To extend the constraints to scales where the laboratory probes are not competitive, we also study consequences on astrophysical objects. We analyze in detail the processes that may take place in stellar interiors and lead to emission of hidden gravitons, acting like an additional source of energy loss.
description: 15 pages, 7 figures
A Huff model with firm heterogeneity and selection. Application to the Italian retail sector
Creators: name: Gatto, Massimo Del
name: Mastinu, Carlo S.
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: In this paper, firm heterogeneity (in terms of productivity, i.e., marginal costs) is incorporated into a Huff model of competition in the Italian retail sector. A higher market potential in the trade area is associated with higher average productivity and lower productivity dispersion through selection of the best stores. The analysis, based on a unique data set encompassing 14,212 Italian retailers, finds support for this relationship in Southern Italy, but not in Northern and Central Italy (where opposite results are obtained in some cases), suggesting the selection dynamics are affected by context factors (other than provincial/regional accessibility) related to an upper geographical scale. The results are robust to controlling for local context factors such as financial risk and floor size restrictions. Floor size restrictions are found to enhance selection.
Ortegia hispanica Linnaeus, 1753, spec. nov.
Creators: name: Linnaeus, Carolus
Publisher: name: Laurentius Salvius
Year: 1753
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Caryophyllaceae
Ortegia
Ortegia hispanica

description: Ortegia hispanica, spec. nov.
 1. Ortega. Loefl. epist. VIII: 43.
 Rubia linifolia aspera. Bauh. pin. 333.
 Juncaria salmatica. Clus. hist.1. p.174.
 Habitat in Castilia Minuart, Baetica Velez, Salmantica . ☉
description: Published as part of Linnaeus, Carolus, 1753, Species plantarum: exhibentes plantas rite cognitas, ad genera relatas, cum differentiis specificis, nominibus trivialibus, synonymis selectis, locis natalibus, secundum systema sexuale digestas, Stockholm :Laurentius Salvius on page 35, DOI: 10.5281/zenodo.3931989