cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electroweak bubble wall expansion: gravitational waves and baryogenesis in Standard Model-like thermal plasma
Creators: name: Lewicki, Marek
name: Merchand, Marco
name: Zych, Mateusz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Computing the properties of the bubble wall of a cosmological first order phase transition at electroweak scale is of paramount importance for the correct prediction of the baryon asymmetry of the universe and the spectrum of gravitational waves. By means of the semi-classical formalism we calculate the velocity and thickness of the wall using as theoretical framework the scalar singlet extension of the SM with a parity symmetry and the SM effective field theory supplemented by a dimension six operator. We use these solutions to carefully predict the baryon asymmetry and the gravitational wave signals. The singlet scenario can easily accommodate the observed asymmetry but these solutions do not lead to observable effects at future gravity wave experiments. In contrast the effective field theory fails at explaining the baryon abundance due to the strict constraints from electric dipole moment experiments, however, the strongest solutions we found fall within the sensitivity of the LISA experiment. We provide a simple analytical approximation for the wall velocity which only requires calculation of the strength and temperature of the transition and works reasonably well in all models tested. We find that generically the weak transitions where the fluid approximation can be used to calculate the wall velocity and verify baryogenesis produce signals too weak to be observed in future gravitational wave experiments. Thus, we infer that GW signals produced by simple SM extensions visible in future experiments are likely to only be produced in strong transitions described by detonations with highly relativistic wall velocities.
A Gaussian kinematic formula
Creators: name: Taylor, Jonathan E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G15, 60G60, 53A17, 58A05 (Primary) 60G17, 62M40, 60G70 (Secondary)

description: In this paper we consider probabilistic analogues of some classical integral geometric formulae: Weyl--Steiner tube formulae and the Chern--Federer kinematic fundamental formula. The probabilistic building blocks are smooth, real-valued random fields built up from i.i.d. copies of centered, unit-variance smooth Gaussian fields on a manifold $M$. Specifically, we consider random fields of the form $f_p=F(y_1(p),...,y_k(p))$ for $F\in C^2(\mathbb{R}^k;\mathbb{R})$ and $(y_1,...,y_k)$ a vector of $C^2$ i.i.d. centered, unit-variance Gaussian fields. The analogue of the Weyl--Steiner formula for such Gaussian-related fields involves a power series expansion for the Gaussian, rather than Lebesgue, volume of tubes: that is, power series expansions related to the marginal distribution of the field $f$. The formal expansions of the Gaussian volume of a tube are of independent geometric interest. As in the classical Weyl--Steiner formulae, the coefficients in these expansions show up in a kinematic formula for the expected Euler characteristic, $χ$, of the excursion sets $M\cap f^{-1}[u,+\infty)=M\cap y^{-1}(F^{-1}[u,+\infty))$ of the field $f$. The motivation for studying the expected Euler characteristic comes from the well-known approximation $\mathbb{P}[\sup_{p\in M}f(p)\geq u]\simeq\mathbb{E}[χ(f^{-1}[u,+\infty))]$.
description: Published at http://dx.doi.org/10.1214/009117905000000594 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Initial Reports of the Deep Sea Drilling Project - Volume 95
Creators: name: Poag, C.W.
name: Watts, A.B.
name: The Leg 95 Science Party
Publisher: name: U.S. Government Printing Office
Year: 1987
Subjects: Deep Sea Drilling Project
Glomar Challenger
DSDP
Leg 95
Site 603
Site 612
Site 613
New Jersey Transect
Northwest Atlantic Ocean

description: This volume covers Leg 95 of the cruises of the Drilling Vessel Glomar Challenger. The New Jersey margin was chosen as the most suitable location for constructing the first U.S. Atlantic margin-wide stratigraphic transect. As envisioned, the transect would extend from the outcrop belt in central New Jersey to a location 700 km distant on the lower continental rise. Leg 93 began the current phase of drilling on the New Jersey Transect by placing two shallow core sites on the upper continental rise, and established the extreme oceanward end of the transect at Site 603 on the lower rise east of Cape Hatteras. The principal scientific objectives of Leg 95 were to document the Cenozoic and Latest Cretaceous depositional history of the New Jersey continental slope and upper rise. Geological and geophysical analysis of continuously cored strata from these sites would allow us to 1. Establish the composition, stratigraphic framework, and depositional environments of sediments constituting the shelf/rise transition. 2. Accurately date the biostratigraphic gaps and major seismic reflectors (both conformable and unconformable) in the section. 3. Document lateral variability in bio- and lithofacies and compare the facies observed with analogues from the modern slope and rise. 4. Establish paleoenvironmental cycles, detailed biostratigraphic zonations, and stable-isotopic stratigraphy. 5. Calibrate poorly known siliceous planktonic and benthic biozones with the widely applied calcareous micro fossil zonations. 6. Identify depositional sequences and evaluate their relationships with seismic sequences, sea-level changes, tectonism, oceanic current patterns, water-mass composition, and sediment provenance and accumulation rates. 7. Compare and correlate the geological and geophysical record of the slope and upper rise with that of the adjacent shelf and lower rise (especially that at Site 603) and with other passive margins. 8. Determine the detailed subsidence history at Site 612 by "backstripping" techniques and compare the resulting tectonic subsidence with predictions based on thermal and mechanical models for the development of passive margins. Leg 95 began in St. John’s, Newfoundland in August 1983 and ended in Ft. Lauderdale, Florida in September 1983.
A Framework for Integrating IoT Streaming Data from Multiple Sources
Creators: name: Doan, Quang Tu
Publisher: name: La Trobe
Year: 2021
Subjects: subject: Data Format
subject: FOS: Computer and information sciences
subject: 80403 Data Structures

description: A thesis submitted in total fulfillment for the degree of Doctor of Philosophy to the Department of Computer Science and Information Technology, School of Engineering and Mathematical Sciences, College of Science, Health and Engineering, La Trobe University, Victoria.
KIC 10975348: A double-mode or triple-mode high-amplitude $δ$ Scuti star?
Creators: name: Yang, Tao-Zhi
name: Sun, Xiao-Ya
name: Zuo, Zhao-Yu
name: Liu, Hai-Wen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper, we analyze the light variations of KIC 10975348 using photometric data delivered from $Kepler$ mission. This star is exceptionally faint ($K_{p}$ = 18.6 mag), compared to most well-studied $δ$ Scuti stars. The Fourier analysis of the short cadence data (i.e. Q14, Q15 and Q16, spanning 220 days) reveals the variations are dominated by the strongest mode with frequency F0 = 10.231899 $\rm{d^{-1}}$, which is compatible with that obtained from $RATS-Kepler$. The other two independent modes with F1 (= 13.4988 $\rm{d^{-1}}$) and F2 (= 19.0002 $\rm{d^{-1}}$) are newly detected and have amplitudes two orders of magnitude smaller than F0. We note that, for the first time, this star is identified to be a high-amplitude $δ$ Sct (HADS) star with amplitude of about 0.7 mag, and the lower ratio of F0/F1 = 0.758 suggests it might be a metal-rich variable star. The frequency F2 may be a third overtone mode, suggesting this target might be a new radial triple-mode HADS star. We perform $O - C$ analysis using 1018 newly determined times of maximum light and derive an ephemeris formula: $T_{max}$ = 2456170.241912(0)+0.097734(1) $\times$ $E$. The $O - C$ diagram shows that the pulsation period of KIC 10975348 seems to show no obvious change, which is in contrast to that of the majority of HADS stars. The possible cause of that may be due to the current short time span of observations. To verify its possible period variations, regular observation from space with a longer time span in future is needed.
description: 26 pages, 3 figures;Accepted for publication in The Astrophysical Journal
Heavy-metal enrichment of intermediate He-sdOB stars: the pulsators Feige 46 and LS IV -14 116 revisited
Creators: name: Dorsch, M.
name: Latour, M.
name: Heber, U.
name: Irrgang, A.
name: Charpinet, S.
name: Jeffery, C. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Hot subdwarf stars of types O and B represent a poorly understood phase in the evolution of low-mass stars. Many subdwarfs show rich oscillations and are among the most chemically peculiar stars known. Two intermediate He-rich hot subdwarf stars, LS IV-14$^\circ$116 and Feige 46, are particularly interesting, because they show extreme enrichments of heavy elements such as Ge, Sr, Y, and Zr, strikingly similar in both stars. Also their light oscillations are similar, but occur at periods incompatible with standard pulsation theory. We investigate the metal abundances in both stars and validate the pulsations in Feige 46 using its recent TESS light curve. High-resolution spectroscopy is combined with non-LTE model atmospheres calculated with Tlusty and Synspec to determine metal abundances consistently. Many lines are identified with transitions originating from Ga III, Ge III-IV, Se III, Kr III, Sr II-III, Y III, Zr III-IV, and Sn IV, most of which have not been observed so far in any star. The abundances of 19 metals in both stars are almost identical, light metals being slightly more abundant in Feige 46 while Zr, Sn, and Pb are slightly less enhanced compared to LS IV$-$14$^\circ$116. Both abundance patterns are distinctively different from those of He-poor subdwarfs of similar temperature. The enrichment in heavy metals of more than 4 dex compared to the Sun is likely the result of strong atmospheric diffusion processes while the stars' similar patterns of C, N, O, and Ne abundances might provide clues to their as yet unclear evolutionary history. Finally, we find that the periods of the pulsation modes in Feige 46 are stable to better than $\dot{P} \lesssim 10^{-8}$ s/s. This is not compatible with $\dot P$ predicted for pulsations driven by the $ε$-mechanism and excited by helium-shell flashes in a star which is evolving, for example, onto the extended horizontal branch.
description: 31 pages, 13 figures, accepted for publication in A&A
IMPAQT – AN INTELLEGIENT MANAGEMENT SYSTEM FOR INTEGRATED MULTI-TROPHIC AQUACULTURE- A CASE STUDY: CAMLI PILOT SITE
Creators: name: Tarkan, Seyma
Publisher: name: Zenodo
Year: 2020

description: The IMPAQT project is an ambitious challenge to design and demonstrate an IMTA system supported by and Intelligent Management System (IMS). The project’s demonstration has been planned to be carried out at six different pilot sites around Europe and one in China, all which has their production and product properties comprising different trophic species such as seaweeds, mussels, scallops, lobster and fish. The pilot in Camli (Cesme, Turkey) has been installed within the boundaries of the offshore production sites of a commercial enterprise at industrial scale which mainly produces seabream, seabass and meagre. The pilot has been designed to carry out an integrated aquaculture production for seabass, blue mussel and sea lettuce. The development of such an offshore IMTA system requires the identification and analysis of environmental, economic and operational costs and benefits in order to be able to compare to a traditional monoculturing offshore system with a similar scale . The comparative results of such investigations will enable to assess the actual feasibility for an IMTA system for the future development of offshore aquaculture. The pilot has been designed as a trio-trophic system comprising macroalgae lines, mussel rafts, and fish cages at unit commercial production unit. Three bouys equipped with a set of sensors around the system enabling continuous measurement of a set of envrionmental variables such as temperature, salinity, DO, Chl a, turbidity, etc.) provides observational data via wireles connection tools developed . There are also surface and under water cameras and wheather station providing data via same connection tools. All data are transfered first to a dedicated server and then to the cloud account as a data storage and retrieval platform. The data on the farming operations such as feeding, mortality, grading, stoking density, disease treatment, etc. are been entered by user so that; • monitoring growth and feed consumption for the optimization of stocking, feeding and harvesting, • monitoring and preventing health related problems • monitoring environmental footprint, and. • monitoring welfare of cultured organisms. can be performed more efficiently by using the integrated systems and thus, the ability to control the state of production and to predict iteratively harvestable products over a calender schedule can be more realible and feasible.
Isotopic Abundances of Carbon and Oxygen in Oxygen-Rich Giant Stars
Creators: name: Tsuji, Takashi
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: 16O/17O and 12C/13C ratios in 23 M giants are determined from high resolution IR spectra observed with the KPNO FTS. The masses of our sample are estimated with the use of the evolutionary tracks by Claret (2004), which could account for only about half of our sample. The resulting rather large variation of 16O/17O in low mass stars is well consistent with the prediction of the evolutionary models, but quite low 16O/17O ratios observed in some higher mass stars cannot be explained with the model prediction. The observed 12C/13C ratios are mostly around 10, in contradiction with the predict 12C/13C ratios of about 20. Thus we confirm a long-standing 12C/13C puzzle, and it appears that this dilemma may not be resolved yet even with extra mixing such as "cool bottom processing" expected only in low mass stars.
description: 3 pages, 3 figures, to appear in Proceedings of the IAU Symposium No.239 "Convection in Astrophysics" eds. F. Kupka, I. W. Roxburgh & K. L. Chan
Elicitation on object scope and infinitival complementation
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: nkr

description: Elicitation on the scope of objects with respect to modals, followed by infinitival complementation. The first recording stops after sentence 11; the second recording picks up there.
Managing Your Digital Presence
Creators: name: Vrouwenvelder, Kristina
Publisher: name: Zenodo
Year: 2023
Subjects: digital presence
orcid
tutorial
citation

description: Presentation given at the Open Science and Data Help Desk at AGU 2023 in San Francisco. 

Wednesday, 13 December 2023

Your digital presence determines how the global scientific community finds, perceives, and interacts with your research and work. Is yours ready for primetime? We'll give a tutorial on setting up your digital ORCID to help connect your papers, funding, employment, education, and more.
The Effect of Declustering on the Size Distribution of Mainshocks
Creators: name: Mizrahi, Leila
name: Nandan, Shyam
name: Wiemer, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Declustering aims to divide earthquake catalogs into independent events (mainshocks), and dependent (clustered) events, and is an integral component of many seismicity studies, including seismic hazard assessment. We assess the effect of declustering on the frequency-magnitude distribution of mainshocks. In particular, we examine the dependence of the b-value of declustered catalogs on the choice of declustering approach and algorithm-specific parameters. Using the catalog of earthquakes in California since 1980, we show that the b-value decreases by up to 30% due to declustering with respect to the undeclustered catalog. The extent of the reduction is highly dependent on the declustering method and parameters applied. We then reproduce a similar effect by declustering synthetic earthquake catalogs with known b-value, which have been generated using an Epidemic-Type Aftershock Sequence (ETAS) model. Our analysis suggests that the observed decrease in b-value must, at least partially, arise from the application of the declustering algorithm on the catalog, rather than from differences in the nature of mainshocks versus fore- or aftershocks. We conclude that declustering should be considered as a potential source of bias in seismicity and hazard studies.
Joint density-functional theory for electronic structure of solvated systems
Creators: name: Petrosyan, Sahak
name: Briere, Jean-Francois
name: Roundy, David
name: Arias, T. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We introduce a new form of density functional theory for the {\em ab initio} description of electronic systems in contact with a molecular liquid environment. This theory rigorously joins an electron density-functional for the electrons of a solute with a classical density-functional theory for the liquid into a single variational principle for the free energy of the combined system. A simple approximate functional predicts, without any fitting of parameters to solvation data, solvation energies as well as state-of-the-art quantum-chemical cavity approaches, which require such fitting.
description: Fixed typos and minor updates to text
Bootstrapping (D, D) Conformal Matter
Creators: name: Baume, Florent
name: Lawrie, Craig
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the numerical conformal bootstrap to study six-dimensional $\mathcal{N}=(1,0)$ superconformal field theories with flavor symmetry $\mathfrak{so}_{4k}$. We present evidence that minimal $(D_k, D_k)$ conformal matter saturates the unitarity bounds for arbitrary $k$. Furthermore, using the extremal-functional method, we check that the chiral-ring relations are correctly reproduced, extract the anomalous dimensions of low-lying long superconformal multiplets, and find hints for novel OPE selection rules involving type-$\mathcal{B}$ multiplets.
description: 14 pages, 8 figures
Shell-model studies on exotic nuclei around 132Sn
Creators: name: Coraggio, L.
name: Covello, A.
name: Gargano, A.
name: Itaco, N.
name: Kuo, T. T. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The study of exotic nuclei around 132Sn is a subject of current experimental and theoretical interest. Experimental information for nuclei in the vicinity of 132Sn, which have been long inaccessible to spectroscopic studies, is now available thanks to new advanced facilities and techniques. The experimental data which have been now become available for these neutron-rich nuclei may suggest a modification in the shell structure. They are, in fact, somewhat different from what one might expect by extrapolating the existing results for N<82, and as a possible explanation a change in the single-proton level scheme has been suggested. The latter would be caused by a more diffuse nuclear surface, and could be seen as a precursor of major effects which should show up at larger neutron excess. New data offer therefore the opportunity to test the shell model and look for a possible evolution of shell structure when going toward neutron drip line. This is stimulating shell-model studies in this region. Here, we present an overview of recent shell-model studies of 132Sn neighbors, focusing attention on those calculations employing realistic effective interactions.
description: 8 pages, 4 tables, invited talk at INPC2007, Tokyo, Japan, June 3-8 2007. To be published in Nuclear Physics A
Galois module structure of Milnor K-theory mod p^s in characteristic p
Creators: name: Minac, Jan
name: Schultz, Andrew
name: Swallow, John
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: K-Theory and Homology (math.KT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 19D45; 12F10

description: Let E be a cyclic extension of pth-power degree of a field F of characteristic p. For all m, s in N, we determine K_mE/p^sK_mE as a (Z/p^sZ)[Gal(E/F)]-module. We also provide examples of extensions for which all of the possible nonzero summands in the decomposition are indeed nonzero.
description: v2 (11 pages): minor corrections made
Dolichogenidea seriphia
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea seriphia

description: D. seriphia (Nixon, 1972): Pterostigma brown; T2 smooth.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 174, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178
D6 Family Symmetry and Cold Dark Matter at LHC
Creators: name: Kajiyama, Yuji
name: Kubo, Jisuke
name: Okada, Hiroshi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a non-supersymmetric extension of the standard model with a family symmetry based on D6 Z2 Z2, where one of Z2's is exactly conserved. This Z2 forbids the tree-level neutrino masses and simultaneously ensures the stability of cold dark matter candidates. From the assumption that cold dark matter is fermionic we can single out the D6 singlet right-handed neutrino as the best cold dark mater candidate. We find that an inert charged Higgs with a mass between 300 and 750 GeV decays mostly into an electron (or a positron) with a large missing energy, where the missing energy is carried away by the cold dark matter candidate. This will be a clean signal at LHC.
description: 20 pages, 7 figures
A Bayesian Time-Varying Effect Model for Behavioral mHealth Data
Creators: name: Koslovsky, Matthew D.
name: Hebert, Emily T.
name: Businelle, Michael S.
name: Vannucci, Marina
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The integration of mobile health (mHealth) devices into behavioral health research has fundamentally changed the way researchers and interventionalists are able to collect data as well as deploy and evaluate intervention strategies. In these studies, researchers often collect intensive longitudinal data (ILD) using ecological momentary assessment methods, which aim to capture psychological, emotional, and environmental factors that may relate to a behavioral outcome in near real-time. In order to investigate ILD collected in a novel, smartphone-based smoking cessation study, we propose a Bayesian variable selection approach for time-varying effect models, designed to identify dynamic relations between potential risk factors and smoking behaviors in the critical moments around a quit attempt. We use parameter-expansion and data-augmentation techniques to efficiently explore how the underlying structure of these relations varies over time and across subjects. We achieve deeper insights into these relations by introducing nonparametric priors for regression coefficients that cluster similar effects for risk factors while simultaneously determining their inclusion. Results indicate that our approach is well-positioned to help researchers effectively evaluate, design, and deliver tailored intervention strategies in the critical moments surrounding a quit attempt.
Love for Art in the Time of Coronavirus. The Consumption of Digital Museums Services.
Creators: name: Pellegrini Elisa
Publisher: name: Zenodo
Year: 2021
Subjects: Digitalization
Innovation
Museum
Audience
Consumption

description: Since 8 March 2020, the Italian government closed museums to prevent further spread of COVID-19 outbreak. Therefore, in order to keep active and present in the market, museums developed or prominently showcased a series of digital services. However, it is crucial to understand if the investments made are in the right direction and able to satisfy customers’ needs. In fact, many museums are short of resources and digital services can require large investments. Consequently, a guide of what people want may be useful to museums in future allocation of resources. For these reasons, my thesis aims at understanding what defines the consumer utility of digital museum services. In order to do that, I investigate why people visit museums, what services museums are providing online, what museum services are being consumed online and what services have market potential for growth in the online leisure market. In particular, the research focuses on free services delivered by museums as leisure activities, both in an entertainment and educative sense. The study follows a quantitative strategy with a comparative cross-sectional design and it is developed looking at consumers in Italy, delivering self-completion questionnaires to potential visitors of art museums. Results show that online services as virtual tours, videos and social media provide the greatest utility to consumers, particularly those that present interactive characteristics and give the possibility to be directly involved, enjoying the experience with other people, and have an educational goal, presenting the content within a context to enable the consumer to learn something new.
Soft X-ray spectral variability of AM Herculis
Creators: name: Beuermann, K.
name: Kholy, E. El
name: Reinsch, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Polars (AM Herculis binaries) are a prominent class of bright soft X-ray sources, many of which were discovered with ROSAT. We present a homogenous analysis of all the pointed ROSAT PSPC observations of polars subdivided into two papers that discuss the prototype polar AM Her in detail and summarize the class properties of all other polars. We derive the high-state soft X-ray flux and short-term spectral variability of AM Her using a new detector response matrix and a confirmed flux calibration of the ROSAT PSPC below 0.28 keV. The best-fit mean single-blackbody temperature and integrated bright-phase energy flux of AM Her in its April 1991 high state are 27.2 +/- 1.0 eV and (2.6 +/- 0.6) x 10^-9 erg cm^-2s^-1, respectively. The total blackbody flux of a multi-temperature model that fits both the soft X-ray and the fluctuating far-ultraviolet components is Fbb = (4.5 +/- 1.5) x 10^-9 erg cm^-2s^-1. The total accretion luminosity at a distance of 80 pc, Lbb = (2.1 +/- 0.7) x 10^33 erg s-1, implies an accretion rate of Mdot = (2.4 +/- 0.8) x 10^-10 Msun yr^-1 for an 0.78 Msun white dwarf. The soft X-ray flux displays significant variability on time scales down to 200 ms. Correlated spectral and count-rate variations are seen in flares on time scales down to 1 s, demonstrating the heating and cooling associated with individual accretion events. Our spectral and temporal analysis provides direct evidence for the blobby accretion model and suggests a connection between the soft X-ray and the fluctuating far-ultraviolet components.
description: 7 pages, 6 figures, accepted for publication in Astronomy & Astrophysics
Dolichogenidea sisenna
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea sisenna

description: D. sisenna (Nixon, 1972): Propodeum mostly polished and without areola (only small rugae above nucha); very broad pterostigma with very small (almost indistinguishable) pale spot at base.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 174, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178
Notes on the two-dimensional fractional Brownian motion
Creators: name: Baudoin, Fabrice
name: Nualart, David
Publisher: name: arXiv
Year: 2006
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60F15, 60G15, 60G18, 60H05 (Primary)

description: We study the two-dimensional fractional Brownian motion with Hurst parameter $H>{1/2}$. In particular, we show, using stochastic calculus, that this process admits a skew-product decomposition and deduce from this representation some asymptotic properties of the motion.
description: Published at http://dx.doi.org/10.1214/009117905000000288 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Active Tuning of Resonant Lattice Kerker Effect
Creators: name: Xiong, Lei
name: Ding, Hongwei
name: Lu, Yuanfu
name: Li, Guangyuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: The Kerker effect has been generalized in nanophotonics and meta-optics, and has recently been of great interest by relating to various fascinating functionalities such as scattering management and perfect transmission, reflection or absorption. One of the most interesting generalizations is the resonant lattice Kerker effect in periodic nanostructures. However, its active tuning has not been explored yet. Here, we report, for the first time, the active control of the resonant lattice Kerker effect in periodic Ge2Se2Te5 nanodisks. By changing the crystalline fraction, we show that the electric dipole lattice resonance (ED-LR), the magnetic dipole resonance (MDR), and thus the resonant lattice Kerker effect are all red-shifted. We therefore realize the transition from the ED-LR to the resonant lattice Kerker effect, which enables multilevel tuning of reflection, transmission and absorption with modulation depths above 86%. Taking advantage of the MDR redshifts, we also observe broadband and multilevel tuning of transmission with modulation depth of 87% over a broadband range of 588 nm. Our work establishes a new path for designing high-performance active nanophotonic devices.
description: 18 pages, 6 figures
Ψηφιακή ιχνηλάτηση επαφών: Εργαλείο αναχαίτησης της πανδημίας ή πρόσχημα για την παραβίαση προσωπικών δεδομένων
Creators: name: Laoudias, Christos
Publisher: name: Zenodo
Year: 2021

description: Η πανδημία του κορωνοϊού εμφανίστηκε στα τέλη του 2019 και έκτοτε έχει προκαλέσει τεράστια διαταραχή στην δημόσια υγεία και πρωτοφανή αντίκτυπο στην παγκόσμια οικονομία, ενώ κυβερνήσεις σε όλο τον κόσμο εξακολουθούν να λαμβάνουν μέτρα για τον περιορισμό της εξάπλωσής της. Ταυτόχρονα, βασίζονται στην Συμβατική Ιχνηλάτηση Επαφών (ΣΙΕ) με την οποία εντοπίζονται οι επαφές των επιβεβαιωμένων κρουσμάτων ώστε να απομονωθούν έγκαιρα. Ωστόσο, όταν τα κρούσματα αυξάνονται δραματικά η ΣΙΕ συχνά καθίσταται χρονοβόρα και ανεπαρκής. Επιπρόσθετα, η ΣΙΕ αδυνατεί να εντοπίσει πιθανές νέες μολύνσεις λόγω επαφών με αγνώστους σε πολυσύχναστους χώρους όπως εστιατόρια, μπαρ, θέατρα, μέσα μαζικής μεταφοράς κ.λπ. Για αυτούς τους λόγους, η Ψηφιακή Ιχνηλάτηση Επαφών (ΨΙΕ) αποτελεί μία πολλά υποσχόμενη τεχνολογία καθώς επιτρέπει την αυτόματη και ταχύτερη ειδοποίηση των χρηστών που έχουν υψηλό ρίσκο λόγω έκθεσης σε κάποιο θετικό κρούσμα. Αυτή η διάλεξη θα ξεκινήσει με το ιστορικό των τεχνολογιών ΨΙΕ, θα συνοψίσει τα ευρήματα πρόσφατων μελετών αναφορικά με την αποτελεσματικότητά τους, θα περιγράψει την Κυπριακή εφαρμογή CovTracer-Exposure Notification και θα προσπαθήσει να απαντήσει στις ανησυχίες για πιθανή παραβίαση της ιδιωτικότητας και των προσωπικών δεδομένων από την χρήση αντίστοιχων εφαρμογών.
description: 4η διάλεξη του 23ου Χρόνου του Ελεύθερου Ζηνώνειου Πανεπιστημίου, 14 Δεκεμβρίου 2021
A kernel for time series based on global alignments
Creators: name: Cuturi, Marco
name: Vert, Jean-Philippe
name: Birkenes, Oystein
name: Matsui, Tomoko
Publisher: name: arXiv
Year: 2006
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose in this paper a new family of kernels to handle times series, notably speech data, within the framework of kernel methods which includes popular algorithms such as the Support Vector Machine. These kernels elaborate on the well known Dynamic Time Warping (DTW) family of distances by considering the same set of elementary operations, namely substitutions and repetitions of tokens, to map a sequence onto another. Associating to each of these operations a given score, DTW algorithms use dynamic programming techniques to compute an optimal sequence of operations with high overall score. In this paper we consider instead the score spanned by all possible alignments, take a smoothed version of their maximum and derive a kernel out of this formulation. We prove that this kernel is positive definite under favorable conditions and show how it can be tuned effectively for practical applications as we report encouraging results on a speech recognition task.
Dolichogenidea sagus
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea sagus

description: D. sagus (Kotenko, 1986): Antenna reddish-brown or reddish-yellow; pterostigma light yellow; propodeum mostly polished and without areola (only small rugae above nucha); ovipositor sheath longer than metatibia.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 174, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178
Elicitation on indefinites, disjunction, and de se interpretation
Creators: name: Rudolph, Johnny (Soni)
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: nkr

description: Investigating properties of indefinites with dahi, including their scopal possibilities outside of islands and their ability to be topics, and the scope of disjunction, followed by some questions on the de se/de re interpretation of null subjects of embedded clauses.
Chemical abundances for the transiting planet host stars OGLE-TR-10, 56, 111, 113, 132 and TrES-1. Abundances in different galactic populations
Creators: name: Santos, N. C.
name: Ecuvillon, A.
name: Israelian, G.
name: Mayor, M.
name: Melo, C.
name: Queloz, D.
name: Udry, S.
name: Ribeiro, J. P.
name: Jorge, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We used the UVES spectrograph (VLT-UT2 telescope) to obtain high-resolution spectra of 6 stars hosting transiting planets, namely for OGLE-TR-10, 56, 111, 113, 132 and TrES-1. The spectra are now used to derive and discuss the chemical abundances for C, O, Na, Mg, Al, Si, S, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Cu and Zn. Abundances were derived in LTE, using 1-D plane-parallel Kurucz model atmospheres. For S, Zn and Cu we used a spectral synthesis procedure, while for the remaining cases the abundances were derived from measurements of line-equivalent widths. The resulting abundances are compared with those found for stars in the solar neighborhood. Distances and galactic coordinates are estimated for the stars. We conclude that besides being particularly metal-rich, with small possible exceptions OGLE-TR-10, 56, 111, 113, 132 and TrES-1 are chemically undistinguishable from the field (thin disk) stars regarding their [X/Fe] abundances. This is particularly relevant for the most distant of the targets, located at up to ~2 Kpc from the Sun. We also did not find any correlation between the abundances and the condensation temperature of the elements, an evidence that strong accretion of planetary-like material, tentatively connected to planetary migration, did not occur.
description: Accepted for publication in Astronomy & Astrophysics (June 2006)
Measuring the Cosmic Microwave Background Radiation (CMBR) polarization with QUIET
Creators: name: Samtleben, Dorothea
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A major goal of upcoming experiments measuring the Cosmic Microwave Background Radiation (CMBR) is to reveal the subtle signature of inflation in the polarization pattern which requires unprecedented sensitivity and control of systematics. Since the sensitivity of single receivers has reached fundamental limits future experiments will take advantage of large receiver arrays in order to significantly increase the sensitivity. Here we introduce the Q/U Imaging ExperimenT (QUIET) which will use HEMT-based receivers in chip packages at 90(40) GHz in the Atacama Desert. Data taking is planned for the beginning of 2008 with prototype arrays of 91(19) receivers, an expansion to 1000 receivers is foreseen. With the two frequencies and a careful choice of scan regions there is the promise of effectively dealing with foregrounds and reaching a sensitivity approaching 10$^{-2}$ for the ratio of the tensor to scalar perturbations.
description: 6 pages, 4 figures, to appear in the Proceedings `A Century of Cosmology', San Servolo (Venezia, Italy), August 2007, to be published by `Il Nuovo Cimento'
Spectral triple with real structure on fuzzy sphere
Creators: name: Chakraborty, Anwesha
name: Nandi, Partha
name: Chakraborty, Biswajit
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Here we have illustrated the construction of a real structure on fuzzy sphere $S^2_*$ in its spin-1/2 representation. Considering the SU(2) covariant Dirac and chirality operator on $S^2_*$ given by Watamura et. al. in [6], we have shown that the real structure is consistent with other spectral data for KO dimension-4 fulfilling the zero order condition, where we find it necessary to enlarge the symmetry group from SO(3) to the full orthogonal group O(3). However the first order condition is violated thus paving the way to construct a toy model for an SU(2) gauge theory to capture some features of physics beyond standard model following Connes et.al. [9].
description: 16 Pages, Some typographical corrections are done in version-2
Evidence for the importance of resonance scattering in X-ray emission line profiles of the O star $ζ$ Puppis
Creators: name: Leutenegger, Maurice A.
name: Owocki, Stanley P.
name: Kahn, Steven M.
name: Paerels, Frits B. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We fit the Doppler profiles of the He-like triplet complexes of \ion{O}{7} and \ion{N}{6} in the X-ray spectrum of the O star $ζ$ Puppis, using XMM-Newton RGS data collected over $\sim 400$ ks of exposure. We find that they cannot be well fit if the resonance and intercombination lines are constrained to have the same profile shape. However, a significantly better fit is achieved with a model incorporating the effects of resonance scattering, which causes the resonance line to become more symmetric than the intercombination line for a given characteristic continuum optical depth $τ_*$. We discuss the plausibility of this hypothesis, as well as its significance for our understanding of Doppler profiles of X-ray emission lines in O stars.
description: 29 pages, 8 figures, revised version accepted by ApJ
Extension of the Non-Crossing Approximation for the Anderson Model with Finite Coulomb Repulsion
Creators: name: Otsuki, J.
name: Kuramoto, Y.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The non-crossing approximation (NCA) is generalized for the Anderson model with finite Coulomb repulsion U. Resummation of infinite number of terms is performed so as to incorporate all leading contributions in the limit of large degeneracy of the local states. With negligible weight of the doubly occupied local states in equilibrium, the extension is achieved through simple modifications of the lowest order formulae. The single-particle excitation spectrum is calculated with almost the same computational effort as in the original NCA. The present scheme reproduces the scaling behavior of the Kondo resonance in the density of states, and gives reasonable description of thermodynamics of the finite-U Anderson model over a wide range of temperature.
description: 10 pages, 18 figures, submitted to J. Phys. Soc. Jpn
Tight coupling expansion and fully inhomogeneous magnetic fields
Creators: name: Giovannini, Massimo
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The tight coupling expansion, appropriately generalized to include large-scale magnetic fields, allows the estimate of the brightness perturbations of CMB anisotropies for typical wavelengths that are larger than the Hubble radius after matter-radiation equality. After discussing the basic features of the the pre-decoupling initial conditions in the presence of fully inhomogeneous magnetic fields, the tight coupling expansion is studied both analytically and numerically. From the requirement that the amplitudes and phases of Sakharov oscillations are (predominantly) adiabatic and from the inferred value of the plateau in the temperature autocorrelation, the effects of the magnetized contribution can be systematically investigated and constrained.
description: 30 pages, 14 figures
Soft X-ray in-flight calibration of the ROSAT PSPC
Creators: name: Beuermann, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present an in-flight calibration of the ROSAT PSPC using the incident spectra of the hot white dwarf HZ43 and the polar AM Her. We derive an absolute flux calibration of the PSPC using the accurately known soft X-ray spectrum of HZ43. Corrections to the PSPC response matrix are derived from a comparison of predicted and observed PSPC spectra of HZ43, supplemented by results for AM Her. The calibration of the PSPC for photon energies E < 0.28 keV is found to be accurate to better than 5% refuting earlier reports of a major miscalibration. Our corrections to the detector response matrices remove systematic residuals in the pulse height spectra of soft sources.
description: 3 pages, 1 figure, accepted for publication in Astronomy & Astrophysics
Dolichogenidea soikai
Creators: name: Fernandez-Triana, Jose
name: Sakagami, Kota
name: Shimizu, So
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Braconidae
Dolichogenidea
Dolichogenidea soikai

description: D. soikai (Nixon, 1972): Flagellomeres 14 and 15 square to slightly elongate; anteromesoscutum with rather coarse and deep punctures; veins mostly transparent.
description: Published as part of Fernandez-Triana, Jose, Sakagami, Kota & Shimizu, So, 2018, Dolichogenidea maetoi sp. nov. (Hymenoptera: Braconidae) from Japan, the first parasitoid wasp recorded from Hyblaea fortissima (Lepidoptera), pp. 167-175 in Acta Entomologica Musei Nationalis Pragae 58 (1) on page 174, DOI: 10.2478/aemnp-2018-0014, http://zenodo.org/record/3699178
Entanglement as a source of black hole entropy
Creators: name: Das, Saurya
name: Shankaranarayanan, S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We review aspects of black hole thermodynamics, and show how entanglement of a quantum field between the inside and outside of a horizon can account for the area-proportionality of black hole entropy, provided the field is in its ground state. We show that the result continues to hold for Coherent States and Squeezed States, while for Excited States, the entropy scales as a power of area less than unity. We also identify location of the degrees of freedom which give rise to the above entropy.
description: 12 pages, latex, 5 figures. Invited talk by SD at `Recent Developments in Gravity' (NEB XII), Nafplion, Greece, 30 June 2006. To appear in Journal of Physics: Conference Series; V2: References added, Minor changes to match published version
Early out-of-equilibrium beam-plasma evolution
Creators: name: Firpo, M. -C.
name: Lifschitz, A. F.
name: Lefebvre, E.
name: Deutsch, C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We solve analytically the out-of-equilibrium initial stage that follows the injection of a radially finite electron beam into a plasma at rest and test it against particle-in-cell simulations. For initial large beam edge gradients and not too large beam radius, compared to the electron skin depth, the electron beam is shown to evolve into a ring structure. For low enough transverse temperatures, the filamentation instability eventually proceeds and saturates when transverse isotropy is reached. The analysis accounts for the variety of very recent experimental beam transverse observations.
description: to appear in Phys. Rev. Letters
How Resummation Depresses the Gluon at Small x
Creators: name: Forte, Stefano
name: Altarelli, Guido
name: Ball, Richard D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We summarize recent progress in the resummation of perturbative evolution at small x. We show that the problem of incorporating BFKL small x logs in GLAP evolution is now completely solved, and that the main effect of small x resummation is to reduce the growth of the gluon at small x in the HERA and LHC regions.
description: 5 pages, 4 figures, talk at DIS2006