cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Chaotic Cipher Mmohocc and Its Security Analysis
Creators: name: Zhang, Xiaowen
name: Shu, Li
name: Tang, Ke
Publisher: name: arXiv
Year: 2006
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In this paper we introduce a new chaotic stream cipher Mmohocc which utilizes the fundamental chaos characteristics. The designs of the major components of the cipher are given. Its cryptographic properties of period, auto- and cross-correlations, and the mixture of Markov processes and spatiotemporal effects are investigated. The cipher is resistant to the related-key-IV attacks, Time/Memory/Data tradeoff attacks, algebraic attacks, and chosen-text attacks. The keystreams successfully passed two batteries of statistical tests and the encryption speed is comparable with RC4.
description: 14 pages, 4 figures, 4 tables
Appendix: In the line of fire: Consequences of human-ignited wildfires to homes in the U.S. (1992-2015)
Creators: name: Mietkiewicz, Nathan
name: Balch, Jennifer
name: Schoennagel, Tania
name: Leyk, Stefan
name: St. Denis, Lise
name: Bradley, Bethany
Publisher: name: Zenodo
Year: 2020
Subjects: WUI, fire, defensible space, prescribed fire, community vulnerability, fire suppression costs, Zillow

description: Abstract: With climate-driven increases in global wildfires, it is imperative to understand how the risk to homes are also changing. Here, we quantify the number of homes threatened, suppression costs, and ignition sources for 1.6 million wildfires in the United States (U.S.; 1992-2015). Human-caused wildfires accounted for 97% of the residential homes threatened (proximate to a wildfire) and nearly a third of suppression costs. This study illustrates how the WUI, which accounts for only a small portion of U.S. land area (~10%), acts as a major source of fires, almost exclusively human-started. Cumulatively, over one million homes were within human-caused wildfire perimeters in the Wildland-Urban Interface (WUI), where communities are built within flammable vegetation. An additional 43 million homes were within one kilometer. Between 1992 and 2015, the number of threatened homes doubled. The convergence of warmer, drier conditions and greater development into flammable landscapes is leaving many communities vulnerable to human-caused wildfires. These files are specifically the appendix materials related to the associated manuscript.
title: Multicomponent incompressible fluids — An asymptotic study
Creators: name: Bothe, Dieter
name: Dreyer, Wolfgang
name: Druet, Pierre‐Etienne
Publisher: name: Wiley-VCH
Year: 2024

description: This paper investigates the asymptotic behavior of the Helmholtz free energy of mixtures at small compressibility. We start from a general representation for the local free energy that is valid in stable subregions of the phase diagram. On the basis of this representation we classify the admissible data to construct a thermodynamically consistent constitutive model. We then analyze the incompressible limit, where the molar volume becomes independent of pressure. Here we are confronted with two problems: 
 
(i) Our study shows that the physical system at hand cannot remain incompressible for arbitrary large deviations from a reference pressure unless its volume is linear in the composition.
 
(ii) As a consequence of the 2nd law of thermodynamics, the incompressible limit implies that the molar volume becomes independent of temperature as well. Most applications, however, reveal the non‐appropriateness of this property.

According to our mathematical treatment, the free energy as a function of temperature and partial masses tends to a limit in the sense of epi– or Gamma–convergence. In the context of the first problem, we study the mixing of two fluids to compare the linearity with experimental observations. The second problem will be treated by considering the asymptotic behavior of both a general inequality relating thermal expansion and compressibility and a PDE‐system relying on the equations of balance for partial masses, momentum and the internal energy.
$c_2$ invariants of hourglass chains via quadratic denominator reduction
Creators: name: Schnetz, Oliver
name: Yeats, Karen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 81T18

description: We introduce families of four-regular graphs consisting of chains of hourglasses which are attached to a finite kernel. We prove a formula for the $c_2$ invariant of these hourglass chains which only depends on the kernel. For different kernels these hourglass chains typically give rise to different $c_2$ invariants. An exhaustive search for the $c_2$ invariants of hourglass chains with kernels that have a maximum of ten vertices provides Calabi-Yau manifolds with point-counts which match the Fourier coefficients of modular forms whose weights and levels are [4,8], [4,16], [6,4], and [9,4]. Assuming the completion conjecture, we show that no modular form of weight 2 and level $\leq1000$ corresponds to the $c_2$ of such hourglass chains. This provides further evidence in favour of the conjecture that curves are absent in $c_2$ invariants of $ϕ^4$ quantum field theory.
Combier, C
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Paris
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
An optical & X-ray study of the counterpart to the SMC X-ray binary pulsar system SXP327
Creators: name: Coe, M. J.
name: Schurch, M.
name: Corbet, R. H. D.
name: Galache, J.
name: McBride, V. A.
name: Townsend, L. J.
name: Udalski, A.
name: )
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Optical and X-ray observations are presented here of a newly reported X-ray transient system in the Small Magellanic Cloud. The data reveal many previously unknown X-ray detections of this system and clear evidence for a 49.995d binary period. In addition, the optical photometry show recurring outburst features at the binary period which may well be indicative of the neutron star interacting with a circumstellar disk around a Be star.
description: 5 pages Accepted for publication in MNRAS
Heermann & Stephan
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Altenburg / Thüringen
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Universal shape law of stochastic supercritical bifurcations: Theory and experiments
Creators: name: Agez, Gonzague
name: Clerc, Marcel G.
name: Louvergneaux, Eric
Publisher: name: arXiv
Year: 2007
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: A universal law for the supercritical bifurcation shape of transverse one-dimensional (1D) systems in presence of additive noise is given. The stochastic Langevin equation of such systems is solved by using a Fokker-Planck equation leading to the expression for the most probable amplitude of the critical mode. From this universal expression, the shape of the bifurcation, its location and its evolution with the noise level are completely defined. Experimental results obtained for a 1D transverse Kerr-like slice subjected to optical feedback are in excellent agreement.
description: 5 pages, 5 figures
Measuring HTTP/3: Adoption and Performance
Creators: name: Trevisan, Martino
name: Giordano, Danilo
name: Drago, Idilio
name: Khatouni, Ali Safari
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The third version of the Hypertext Transfer Protocol (HTTP) is currently in its final standardization phase by the IETF. Besides better security and increased flexibility, it promises benefits in terms of performance. HTTP/3 adopts a more efficient header compression schema and replaces TCP with QUIC, a transport protocol carried over UDP, originally proposed by Google and currently under standardization too. Although HTTP/3 early implementations already exist and some websites announce its support, it has been subject to few studies. In this work, we provide a first measurement study on HTTP/3. We testify how, during 2020, it has been adopted by some of the leading Internet companies such as Google, Facebook and Cloudflare. We run a large-scale measurement campaign toward thousands of websites adopting HTTP/3, aiming at understanding to what extent it achieves better performance than HTTP/2. We find that adopting websites often host most web page objects on third-party servers, which support only HTTP/2 or even HTTP/1.1. Our experiments show that HTTP/3 provides sizable benefits only in scenarios with high latency or very poor bandwidth. Despite the adoption of QUIC, we do not find benefits in case of high packet loss, but we observe large diversity across website providers' infrastructures.
Complex Trajectories of a Simple Pendulum
Creators: name: Bender, Carl M.
name: Holm, Darryl D.
name: Hook, Daniel W.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The motion of a classical pendulum in a gravitational field of strength g is explored. The complex trajectories as well as the real ones are determined. If g is taken to be imaginary, the Hamiltonian that describes the pendulum becomes PT-symmetric. The classical motion for this PT-symmetric Hamiltonian is examined in detail. The complex motion of this pendulum in the presence of an external periodic forcing term is also studied.
description: 11 pages, 12 figures
The Dependence of the Type Ia Supernova Host Bias on Observation or Fitting Technique
Creators: name: Hand, Jared
name: Liu, Shu
name: Galbany, Lluís
name: Perrefort, Daniel
name: Wood-Vasey, W. M.
name: Burns, Chris
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: More luminous Type Ia supernovae (SNe Ia) prefer less massive hosts and regions of higher star formation. This correlation is inverted during width-color-luminosity light curve standardization resulting in step-like biases of distance measurements with respect to host properties. Using the PISCO supernova host sample and SDSS, GALEX, and 2MASS photometry, we compare host stellar mass and specific star formation rate (sSFR) from different observation methods, including local vs. global, and fitting techniques to measure their impact on the host step biases. Mass step measurements for all our mass samples are consistent within a 1$σ$ significance from -0.03$\pm$0.02 mag to -0.04$\pm$0.02 mag. Including or excluding UV information had no effect on measured mass step size or location. Specific SFR (sSFR) step sizes are more significant than mass step measurements and varied from $0.05\pm0.03$ mag (H$α$) and $0.06\pm0.02$ mag (UV) for a 51 host sample. The sSFR step location is influenced by mass sample used to normalize star formation and by sSFR tracer choice. The step size is reduced to 0.04$\pm$0.03 mag when using all available 73 hosts with H$α$ measurements. This 73 PISCO host subsample overall lacked a clear step signal, but here we are searching for whether different choices of mass or sSFR estimation can create a step signal. We find no evidence that different observation or fitting techniques choice can create a distance measurement step in either mass or sSFR.
description: Submission #3 accepted by ApJ
Herzog-Wibert, Achilles
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Basel
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Ο Ευχαριστιακός Λόγος στο Ευαγγέλιο του Ιωάννη:
Creators: name: Κωστοπούλου, Παναγιώτα Αχιλλέα
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Ευχαριστία
Ευαγγέλιο
Ιωάννης
Eucharist
Gospel
John

description: Έχει υποστηριχθεί, όχι αβάσιμα, πως ο Ευαγγελιστής Ιωάννης στηρίζει στο Ευαγγέλιό του τα δύο κεφαλαιώδη μυστήρια της Εκκλησίας, το Βάπτισμα και τη Θεία Ευχαριστία. Δεν έχει αποδοθεί άλλωστε τυχαία στον Ιωάννη το προσωνύμιο του «Θεολόγου Των Μυστηρίων» και δη αυτό του «Ευχαριστιακού Θεολόγου». Η παρούσα μελέτη έχει σαν στόχο της να αποκρυπτογραφήσει τα σημεία εκείνα των περικοπών του Ευαγγελίου του Ιωάννη που επιδέχονται ευχαριστιακής ερμηνείας και να τα καταδείξει. Μέσα από αυτήν την ιχνηλάτιση των ευχαριστιακών τόπων του Ευαγγελίου του Ιωάννη ο Ιωάννης αναδεικνύεται ως ο πρωτεργάτης μιας δεσπόζουσας μυστηριολογίας, στην οποία και αναφέρεται όχι βέβαια expressis verbis αλλά με έναν ιδιαίτερα ευφυή και κεκαλυμένο τρόπο, ωθώντας τον αναγνώστη να ανιχνεύσει από μόνος του τις πληροφορίες που το ίδιο το κείμενο του τις επιδαψιλεύει, ανάγοντάς τον με τον προσφυέστερο τρόπο στο μυστήριο της Θείας Ευχαριστίας. Νοούμενο από αυτή τη σκοπιά, δεν είναι ανακριβές το γεγονός του ότι η προκείμενη εργασία προκρίνει την ευχαριστιακή θεώρηση του Ευαγγελίου του Ιωάννη.
description: It has been claimed that Saint Jean in his gospel supports, not without some ground, the two highly acknowledged mysteries among the other mysteries of the church, those of the Baptism and that of the Holy Communion. It is not a coincidental incidence that Saint John has been proclaimed the par excellence “Theologian Οf The Mysteries”, and more explicitly,“ The Eucharistic Theologian”. In the following paper we tried to manage all the biblical allusions encrypted in the numerous sections of John’s Gospel, which are amenable to Eucharistic interpretation. Should that be the case Saint John has been indicated as a forwarder of an unparalleled mysteriology, in which he refers to, not of course expressis verbis but in an highly - intelligent and non - overt way, pushing every reader to read between the lines and detect the eucharistic meaning enclosed in all these cascade informations that the text itself provides. In this regard, it is precise that the present paper asserts the Eucharistic aspect of the Gospel of John.
Hüffel, L. A
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Hamburg
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Chiodera, P
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Chiavenna
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Integration by parts formula for locally smooth laws and applications to sensitivity computations
Creators: name: Bally, Vlad
name: Bavouzet, Marie-Pierre
name: Messaoud, Marouen
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60H07, 60J75 (Primary) 65C05 (Secondary)

description: We consider random variables of the form $F=f(V_1,...,V_n)$, where $f$ is a smooth function and $V_i,i\in\mathbb{N}$, are random variables with absolutely continuous law $p_i(y) dy$. We assume that $p_i$, $i=1,...,n$, are piecewise differentiable and we develop a differential calculus of Malliavin type based on $\partial\ln p_i$. This allows us to establish an integration by parts formula $E(\partial_iϕ(F)G)=E(ϕ(F)H_i(F,G))$, where $H_i(F,G)$ is a random variable constructed using the differential operators acting on $F$ and $G.$ We use this formula in order to give numerical algorithms for sensitivity computations in a model driven by a Lévy process.
description: Published at http://dx.doi.org/10.1214/105051606000000592 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Carmagnola, Maggi, Warcher & Co
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Mailand
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Interplay of photons and charge carriers in thin-film devices
Creators: name: Kivisaari, Pyry
name: Partanen, Mikko
name: Sadi, Toufik
name: Oksanen, Jani
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Thin films are gaining ground in photonics and optoelectronics, promising improvements in their efficiency and functionality as well as decreased material usage as compared to bulk technologies. However, proliferation of thin films would benefit not only from continuous improvements in their fabrication, but also from a unified and accurate theoretical framework of the interplay of photons and charge carriers. In particular, such a framework would need to account quantitatively and self-consistently for photon recycling and interference effects. To this end, here we combine the drift-diffusion formalism of charge carrier dynamics and the fluctuational electrodynamics of photon transport self-consistently using the recently introduced interference-extended radiative transfer equations. The resulting equation system can be solved numerically using standard simulation tools, and as an example, here we apply it to study well-known GaAs thin-film solar cells. In addition to obtaining the expected device characteristics, we analyze the underlying complex photon transport and recombination-generation processes, demonstrating the physical insight provided for unevenly excited structures through the direct and self-consistent description of photons and charge carriers. The methodology proposed in this work is general and can be used to obtain accurate physical insight into a wide range of planar optoelectronic devices, of which the thin-film single-junction solar cells studied here are only one example.
A Machine Learning Approach for Early Detection of Fish Diseases by Analyzing Water Quality
Creators: name: Nayan, Al-Akhir
name: Mozumder, Ahamad Nokib
name: Saha, Joyeta
name: Mahmud, Khan Raqib
name: Azad, Abul Kalam Al
name: Kibria, Muhammad Golam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Early detection of fish diseases and identifying the underlying causes are crucial for farmers to take necessary steps to mitigate the potential outbreak and thus to avert financial losses with apparent negative implications to the national economy. Typically, fish diseases are caused by viruses and bacteria; according to biochemical studies, the presence of certain bacteria and viruses may affect the level of pH, DO, BOD, COD, TSS, TDS, EC, PO43-, NO3-N, and NH3-N in water, resulting in the death of fishes. Besides, natural processes, e.g., photosynthesis, respiration, and decomposition, also contribute to the alteration of water quality that adversely affects fish health. Being motivated by the recent successes of machine learning techniques, a state-of-art machine learning algorithm has been adopted in this paper to detect and predict the degradation of water quality timely and accurately. Thus, it helps to take preemptive steps against potential fish diseases. The experimental results show high accuracy in detecting fish diseases specific to water quality based on the algorithm with real datasets.
Tc-rich M stars: platypuses of low-mass star evolution
Creators: name: Shetye, Shreeya
name: Van Eck, Sophie
name: Jorissen, Alain
name: Goriely, Stephane
name: Siess, Lionel
Publisher: name: Zenodo
Year: 2021
Subjects: Post main sequence cool stars

description: The Tc-rich M stars reported in the literature (Little-Marenin & Little 1979, Uttenthaler et al. 2013) are puzzling objects since 99Tc, a relatively short-lived isotope on the s-process path, is expected to be detected only in stars also enriched with other s-process elements (like zirconium) or carbon which is dredged-up at the same time, after the thermal pulses on the asymptotic giant branch. However these Tc-enriched objects are classified as M stars, meaning that they do not have any significant zirconium enhancement (otherwise they would be tagged as S-type stars) or any large carbon overabundance (in which case they would be carbon stars). Here we present the first detailed chemical analysis of a sample of Tc-rich M-type stars. We first confirm the detection of the Tc lines, and then analyse the carbon and s-process abundances of these objects, to draw conclusions on their evolutionary status, and on the luminosity of the third dredge-up.
The Crystallography of Strange Quark Matter
Creators: name: Rajagopal, Krishna
name: Sharma, Rishi
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Cold three-flavor quark matter at large (but not asymptotically large) densities may exist as a crystalline color superconductor. We explore this possibility by calculating the gap parameter Delta and free energy Omega(Delta) for possible crystal structures within a Ginzburg-Landau approximation, evaluating Omega(Delta) to order Delta^6. We develop a qualitative understanding of what makes a crystal structure stable, and find two structures with particularly large values of Delta and the condensation energy, within a factor of two of those for the CFL phase known to characterize QCD at asymptotically large densities. The robustness of these phases results in their being favored over wide ranges of density and though it also implies that the Ginzburg-Landau approximation is not quantitatively reliable, previous work suggests that it can be trusted for qualitative comparisons between crystal structures. We close with a look ahead at the calculations that remain to be done in order to make contact with observed pulsar glitches and neutron star cooling.
description: 6 pages, 3 figures. Contribution to the proceedings of Strangeness in Quark Matter 2006, UCLA. Talk given by Rishi Sharma
Abundance of zirconium in the red giants of Galactic globular cluster 47 Tuc
Creators: name: Kolomiecas, Edgaras
name: Dobrovolskas, Vidas
name: Kučinskas, Arūnas
Publisher: name: Zenodo
Year: 2021
Subjects: Stellar systems, clusters, and associations
Stars: abundances
Stars: late-type
globular clusters: individual
Techniques: spectroscopic

description: By combining abundances of neutron capture and proton capture chemical elements and determining their abundance ratios we can try to constrain the possible evolutionary scenarios of Galactic globular clusters. With the purpose of identifying the possible pollution scenarios and possible polluter stars themselves we determined abundance of Zr which is a light s-process chemical element and abundance of Na in the atmospheres of 283 RGB stars in the Galactic globular cluster 47 Tuc. Abundance analysis was based on the archival spectra of RGB stars in 47 Tuc that were obtained with GIRAFFE spectrograph. Stellar model atmospheres were computed using the ATLAS9 code and were further employed to derive 1D LTE Zr abundances with the WIDTH9 package and 1D NLTE Na abundances with the MULTI code. We use the obtained results to discuss the existence of possible correlations/anticorrelations between the abundances of these chemical elements, as well as possible connections between the chemical composition of these stars and their kinematical properties.
description: {"references": ["Bastian, N. & Lardo, C. 2018, ARA&A, 56, 83", "Carlsson, M. 1986, UppOR, 33", "Korotin, S. A., Andrievsky, S. M., & Luck, R. E. 1999, A&A, 351, 168", "Krause, M., Charbonnel, C., Decressin, T., Meynet, G., & Prantzos, N. 2013, A&A, 552, A121", "Ventura P., D'Antona F., Mazzitelli I., Gratton, R., 2001, ApJ, 550, L65"]}
Effective field theory interpretation of lepton magnetic and electric dipole moments
Creators: name: Aebischer, Jason
name: Dekens, Wouter
name: Jenkins, Elizabeth E.
name: Manohar, Aneesh V.
name: Sengupta, Dipan
name: Stoffer, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We perform a model-independent analysis of the magnetic and electric dipole moments of the muon and electron. We give expressions for the dipole moments in terms of operator coefficients of the low-energy effective field theory (LEFT) and the Standard Model effective field theory (SMEFT). We use one-loop renormalization group improved perturbation theory, including the one-loop matching from SMEFT onto LEFT, and one-loop lepton matrix elements of the effective-theory operators. Semileptonic four-fermion operators involving light quarks give sizable non-perturbative contributions to the dipole moments, which are included in our analysis. We find that only a very limited set of the SMEFT operators is able to generate the current deviation of the magnetic moment of the muon from its Standard Model expectation.
description: 34 pages, 7 figures; v2: numbers updated to new experimental value for g-2; version published in JHEP
Musical interval perception with pulsatile electrical stimulation of profoundly deaf ears
Creators: name: Pijl, Sipke
Publisher: name: University of British Columbia
Year: 2009

description: This research examines, in a musical context, the measurement of pitches heard by Nucleus cochlear implant recipients upon systematic variation of electrical pulse rates, delivered to single intracochlear electrodes at a comfortable listening level. Stimuli were configured by a computer in tandem with the Boys Town National Institute Interface for psychophysical research with the Nucleus cochlear implant. Seventeen subjects participated in a 30- item tune recognition test (Experiment I). Many subjects identified a substantial number of items. Three subjects underwent a more detailed investigation to determine whether pitches resulting from pulse rate variation were sufficiently salient for musical interval perception. The results of a closed—set melody recognition test (Experiment II) suggested that recognition was possible on the basis of melody, i.e., even in the complete absence of rhythmical information, and that recognition was possible over a range of pulse rates. However, these results did not determine whether performance was based on ordinal properties of the pitches, or whether successive pitches defined identifiable musical intervals. Intonation quality judgements (Experiment III) of intervals ranging in size from a minor 3rd to a 5th provided evidence that the frequency ratios which characterize acoustical musical intervals also apply to electrical pulse rate pitch. Further evidence of musical ratio recognition was obtained using the method of adjustment (Experiments IV and V). At least 2 out of 3 subjects were able, by means of the adjustment of a variable pulse rate, to reconstruct selected musical intervals abstracted from melodies well—known to the subjects. Two subjects, furthermore, were able to transpose these melodic patterns to higher and lower pulse rates, in a manner similar to that demonstrated by normal—hearing subjects when listening to musical intervals. These results suggest that temporally mediated pitches are capable of conveying ratio pitch information, in the sense that equal ratios of pulse rates appear to produce equal musical pitch intervals. These findings lend support to temporal theories of musical pitch and interval perception.
On the variation in stellar $α$-enhancements of star-forming galaxies in the EAGLE simulation
Creators: name: Gebek, Andrea
name: Matthee, Jorryt
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The ratio of $α$-elements to iron in galaxies holds valuable information about the star formation history since their enrichment occurs on different timescales. The fossil record of stars in galaxies has mostly been excavated for passive galaxies, since the light of star-forming galaxies is dominated by young stars which have much weaker atmospheric absorption features. Here we use the largest reference cosmological simulation of the EAGLE project to investigate the origin of variations in stellar $α$-enhancement among star-forming galaxies at $z=0$, and their impact on integrated spectra. The definition of $α$-enhancement in a composite stellar population is ambiguous. We elucidate two definitions - termed `mean' and `galactic' $α$-enhancement - in more detail. While a star-forming galaxy has a high `mean' $α$-enhancement when its stars formed rapidly, a galaxy with a large `galactic' $α$-enhancement generally had a delayed star formation history. We find that absorption-line strengths of Mg and Fe correlate with variations in $α$-enhancement. These correlations are strongest for the `galactic' $α$-enhancement. However, we show that these are mostly caused by other effects which are cross-correlated with $α$-enhancement, such as variations in the light-weighted age. This severely complicates the retrieval of $α$-enhancements in star-forming galaxies. The ambiguity is not severe for passive galaxies and we confirm that spectral variations in these galaxies are caused by measurable variations in $α$-enhancements. We suggest that this more complex coupling between $α$-enhancement and star formation histories can guide the interpretation of new observations of star-forming galaxies.
description: 21 pages, 12 figures, 4 tables. Accepted to ApJ
Hebrard
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Bordeaux
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Necessary Optimality Conditions for Fractional Action-Like Integrals of Variational Calculus with Riemann-Liouville Derivatives of Order $(α,β)$
Creators: name: El-Nabulsi, Rami Ahmad
name: Torres, Delfim F. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: Optimization and Control (math.OC)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 49K05; 49S05; 70H33; 26A33

description: We derive Euler-Lagrange type equations for fractional action-like integrals of the calculus of variations which depend on the Riemann-Liouville derivatives of order $(α,β)$, $α> 0$, $β> 0$, recently introduced by J. Cresson and S. Darses. Some interesting consequences are obtained and discussed.
description: This is a preprint of an article accepted for publication (28-02-2007) in Math. Methods Appl. Sci
Hollard, Jules
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Le Hâvre
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
A hidden spatial-temporal Markov random field model for network-based analysis of time course gene expression data
Creators: name: Wei, Zhi
name: Li, Hongzhe
Publisher: name: arXiv
Year: 2008
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Microarray time course (MTC) gene expression data are commonly collected to study the dynamic nature of biological processes. One important problem is to identify genes that show different expression profiles over time and pathways that are perturbed during a given biological process. While methods are available to identify the genes with differential expression levels over time, there is a lack of methods that can incorporate the pathway information in identifying the pathways being modified/activated during a biological process. In this paper we develop a hidden spatial-temporal Markov random field (hstMRF)-based method for identifying genes and subnetworks that are related to biological processes, where the dependency of the differential expression patterns of genes on the networks are modeled over time and over the network of pathways. Simulation studies indicated that the method is quite effective in identifying genes and modified subnetworks and has higher sensitivity than the commonly used procedures that do not use the pathway structure or time dependency information, with similar false discovery rates. Application to a microarray gene expression study of systemic inflammation in humans identified a core set of genes on the KEGG pathways that show clear differential expression patterns over time. In addition, the method confirmed that the TOLL-like signaling pathway plays an important role in immune response to endotoxins.
description: Published in at http://dx.doi.org/10.1214/07--AOAS145 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
News aggregator using semantic and data mining technologies:
Creators: name: Βεντούρης, Αναστάσιος Παναγιώτη
Publisher: name: Aristotle University of Thessaloniki
Year: 2014
Subjects: Εξόρυξη δεδομένων
Ομαδοποίηση κειμένων
Ομοιότητα κειμένων
Data mining
Text clustering,
Text Similarities

description: Tο News Odyssey (http://newsodyssey.okfn.gr) είναι ένας πρωτοποριακός αλγόριθμος ειδήσεων που συγκεντρώνει και ομαδοποιεί ιστορίες με το ίδιο θέμα από πολλές κορυφαίες ιστοσελίδες ειδήσεων, αλλά και επιτρέπει τον εντοπισμό της πραγματικής πηγής της είδησης και ποια ήταν η πορεία της. Ουσιαστικά, ο αλγόριθμος απεικονίζει την εξέλιξη της κάθε ιστορίας, με ένα διαδραστικό χρονολόγιο που επιτρέπει στον αναγνώστη να ανατρέξει γρήγορα μεταξύ των ιστοριών, όπως και τη διαδρομή της ιστορίας ανά χώρα, αλλά και ανά ιστοσελίδα ειδήσεων. Η πρώτη λειτουργική έκδοση της εργασίας αναλύει ειδήσεις στην αγγλική γλώσσα, αλλά μπορεί εύκολα να εφαρμοστεί σε άλλη γλώσσα δεδομένου ότι ο αλγόριθμος είναι ανεξάρτητος από τη γλώσσα. Ο σκοπός αυτής της εργασίας είναι να παρουσιάσει πώς λειτουργεί ο αλγόριθμος αλλά και να προτείνει μελλοντικές εφαρμογές. ΛΕΞΕΙΣ ΚΛΕΙΔΙΑ (ΑΓΓΛΙΚΑ) 1. Data mining 2. Text clustering, 3. Text Similarities
description: ABSTRACT News Odyssey (http://newsodyssey.okfn.gr) is a groundbreaking news algorithm that gathers and clusters stories of the same topic from several leading news websites and also traces the genuine source of a news item and what is the course of the story. Essentially, it visualizes the development of each story, with a special interactive timeline that allows the reader to flip swiftly between headlines, refining his search by country or by specific news site. The working prototype analyzes news in English language but can be easily implemented in other language since the algorithm is language-independent. The purpose of this thesis is to present how the algorithm works, visualize case studies and propose future applications.
Star Formation in the Eagle Nebula and NGC 6611
Creators: name: Oliveira, J. M.
name: Jeffries, R. D.
name: van Loon, J. Th
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present IZJHKL' photometry of the core of the cluster NGC 6611 in the Eagle Nebula. This photometry is used to constrain the Initial Mass Function (IMF) and the circumstellar disk frequency of the young stellar objects. Optical spectroscopy of 258 objects is used to confirm membership and constrain contamination as well as individual reddening estimates. Our overall aim is to assess the influence of the ionizing radiation from the massive stars on the formation and evolution of young low-mass stars and their disks. The disk frequency determined from the JHKL' colour-colour diagram suggests that the ionizing radiation from the massive stars has little effect on disk evolution (Oliveira et al. 2005). The cluster IMF seems indistinguishable from those of quieter environments; however towards lower masses the tell-tale signs of an environmental influence are expected to become more noticeable, a question we are currently addressing with our recently acquired ultra-deep (ACS and NICMOS) HST images.
description: in "Triggered Star Formation in a Turbulent ISM", IAU symposium, poster contribution; a full version of the poster can be found at http://www.astro.keele.ac.uk/~jacco/papers/IAUS237_Eagle_2006.pdf
A silicon singlet-triplet qubit driven by spin-valley coupling
Creators: name: Jock, Ryan M.
name: Jacobson, N. Tobias
name: Rudolph, Martin
name: Ward, Daniel R.
name: Carroll, Malcolm S.
name: Luhman, Dwight R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spin-orbit effects, inherent to electrons confined in quantum dots at a silicon heterointerface, provide a means to control electron spin qubits without the added complexity of on-chip, nanofabricated micromagnets or nearby coplanar striplines. Here, we demonstrate a novel singlet-triplet qubit operating mode that can drive qubit evolution at frequencies in excess of 200 MHz. This approach offers a means to electrically turn on and off fast control, while providing high logic gate orthogonality and long qubit dephasing times. We utilize this operational mode for dynamical decoupling experiments to probe the charge noise power spectrum in a silicon metal-oxide-semiconductor double quantum dot. In addition, we assess qubit frequency drift over longer timescales to capture low-frequency noise. We present the charge noise power spectral density up to 3 MHz, which exhibits a $1/f^α$ dependence consistent with $α\sim 0.7$, over 9 orders of magnitude in noise frequency.
description: Supplementary information included with the paper
Discovery of Probable Relativistic Fe Emission and Absorption in the Cloverleaf Quasar H 1413+117
Creators: name: Chartas, G.
name: Eracleous, M.
name: Dai, X.
name: Agol, E.
name: Gallagher, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results from Chandra and XMM-Newton observations of the low-ionization broad absorption line (LoBAL) quasar H 1413+117. Our spatial and spectral analysis of a recent deep Chandra observation confirms a microlensing event in a previous Chandra observation performed about 5 years earlier. We present constraints on the structure of the accretion flow in H 1413+117 based on the time-scale of this microlensing event. Our analysis of the combined spectrum of all the images indicates the presence of two emission peaks at rest-frame energies of 5.35 keV and 6.32 keV detected at the > 98% and > 99% confidence levels, respectively. The double peaked Fe emission line is fit well with an accretion-disk line model, however, the best-fitting model parameters are neither well constrained nor unique. Additional observations are required to constrain the model parameters better and to confirm the relativistic interpretation of the double peaked Fe Kalpha line. Another possible interpretation of the Fe emission is fluorescent Fe emission from the back-side of the wind. The spectra of images C and D show significant high-energy broad absorption features that extend up to rest-frame energies of 9 keV and 15 keV respectively. We propose that a likely cause of these differences is significant variability of the outflow on time-scales that are shorter than the time-delays between the images. The Chandra observation of H 1413+117 has made possible for the first time the detection of the inner regions of the accretion disk and/or wind and the high ionization component of the outflowing wind of a LoBAL quasar.
description: 28 pages, includes 12 figures, Accepted for publication in ApJ
An Open Access, Open Source Stellar Database
Creators: name: Tanner, Angelle
name: Muna, Demitri
Publisher: name: Zenodo
Year: 2021

description: This is a cool poster about the Starchive which is an open source, open access database and web app of stellar properties. Current samples include near stars, young stars, brown dwarfs and white dwarfs. Users will be able to upload new measurements and download csv, latex or text tables. All plots will be adaptable and suitable for publication. Newly uploaded datasets will be advertised on the main page and in a monthly newsletter to encourage contributions.
Towards absolute neutrino masses
Creators: name: Vogel, Petr
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Various ways of determining the absolute neutrino masses are briefly reviewed and their sensitivities compared. The apparent tension between the announced but unconfirmed observation of the $0νββ$ decay and the neutrino mass upper limit based on observational cosmology is used as an example of what could happen eventually. The possibility of a ``nonstandard'' mechanism of the $0νββ$ decay is stressed and the ways of deciding which of the possible mechanisms is actually operational are described. The importance of the $0νββ$ nuclear matrix elements is discussed and their uncertainty estimated.
description: Invited talk at the NOW2006 Workshop, Otranto, Italy, September 2006
Hinrichsen, W. M
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Güstrow / Mecklenburg
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
Hürlimann, Johannes
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Richterswil
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
On the Global Structure of Hopf Hypersurfaces in Complex Space Form
Creators: name: Borisenko, Alexander A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: It is known that a tube over a Kahler submanifold in a complex form is a Hopf hypersurface. In some sense the reverse statement is true: a connected compact generic immersed C^(2n-1) regular Hopf hypersurface in the complex projective plane is a tube iver an irreducible algebraic variety. In the complex hyperbolic space a connected compact generic immersed C^(2n-1) regular Hopf hypersurface is a geodesic hypersphere
6D structure and dynamics of Vela OB2 with Gaia eDR3
Creators: name: Armstrong, Joseph J.
name: Wright, N. J.
name: Jeffries, R. D.
name: Jackson, R. J.
Publisher: name: Zenodo
Year: 2021
Subjects: Stellar systems, clusters, and associations
Gaia
Dynamics

description: We present the first results of analysis of the structure and dynamics of the Vela OB2 association and nearby open clusters using a combination of Gaia eDR3 astrometry and spectroscopic radial velocities. We confirm the youth of sources in our sample using Lithium equivalent widths, identify velocity substructure and estimate rates of expansion for the Vela OB2 association. We find that the expansion of Vela OB2 is significantly anisotropic.
description: {"references": ["Armstrong J. J. et al. 2020, MNRAS, 494(4), 4794", "Armstrong J. J. et al. 2018, MNRAS, 480, L121", "de Zeeuw P. T. et al. 1999, AJ, 117, 354", "Jeffries R. D. et al. 2014, A&A, 563, A94", "Miville-Deschenes M.- A., Lagache G., 2005, ApJS, 157(2), 302", "Prisinzano L. et al. 2016, A&A, 589, A70", "Wright, N. J. 2020, NewAR, 90, 101549"]}
Cassina, François
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Lugano
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert
A Fleming--Viot process and Bayesian nonparametrics
Creators: name: Walker, Stephen G.
name: Hatjispyros, Spyridon J.
name: Nicoleris, Theodoros
Publisher: name: arXiv
Year: 2007
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60G57, 60J35 (Primary) 60J60, 92D15 (Secondary)

description: This paper provides a construction of a Fleming--Viot measure valued diffusion process, for which the transition function is known, by extending recent ideas of the Gibbs sampler based Markov processes. In particular, we concentrate on the Chapman--Kolmogorov consistency conditions which allows a simple derivation of such a Fleming--Viot process, once a key and apparently new combinatorial result for Pólya-urn sequences has been established.
description: Published at http://dx.doi.org/10.1214/105051606000000600 in the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Manipulability optimization for multi-arm teleoperation
Creators: name: Kennel-Maushart, Florian
name: Poranne, Roi
name: Coros, Stelian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Teleoperation provides a way for human operators to guide robots in situations where full autonomy is challenging or where direct human intervention is required. It can also be an important tool to teach robots in order to achieve autonomous behaviour later on. The increased availability of collaborative robot arms and Virtual Reality (VR) devices provides ample opportunity for development of novel teleoperation methods. Since robot arms are often kinematically different from human arms, mapping human motions to a robot in real-time is not trivial. Additionally, a human operator might steer the robot arm toward singularities or its workspace limits, which can lead to undesirable behaviour. This is further accentuated for the orchestration of multiple robots. In this paper, we present a VR interface targeted to multi-arm payload manipulation, which can closely match real-time input motion. Allowing the user to manipulate the payload rather than mapping their motions to individual arms we are able to simultaneously guide multiple collaborative arms. By releasing a single rotational degree of freedom, and by using a local optimization method, we can improve each arm's manipulability index, which in turn lets us avoid kinematic singularities and workspace limitations. We apply our approach to predefined trajectories as well as real-time teleoperation on different robot arms and compare performance in terms of end effector position error and relevant joint motion metrics.
description: Accepted for presentation at IEEE ICRA 2021, published in the conference proceedings
Heidegger, J. H
Creators: name: [s.n.]
Publisher: name: [s.n.]
Year: 1834

description: Ort: Zürich
description: Verzeichnung=Description=Inventaire 05.07.2020 Automatisiert nach HAN-Import
description: Verzeichnung=Description=Inventaire ISAD(G) / HAN Katalogisierungsregeln für Archivbestände Detailliert