cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A systematic study of soft X-ray pulse profiles of magnetars in quiescence
Creators: name: Hu, Chin-Ping
name: Ng, C. -Y.
name: Ho, Wynn C. G.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Magnetars are neutron stars with extremely high surface magnetic fields. They show diverse X-ray pulse profiles in the quiescent state. We perform a systematic Fourier analysis of their soft X-ray pulse profiles. We find that most magnetars have a single-peaked profile and hence have low amplitudes of the second Fourier harmonics (A2). On the other hand, the pulsed fraction (PF) spreads over a wide range. We compared the results with theoretical profiles assuming various surface hotspot asymmetries, viewing geometries, and beaming functions. We found that a single value of the intensity ratio r between two antipodal hotspots is unable to reproduce the observed distribution of A2 and PF for all magnetars. The inferred r is probably anticorrelated with the thermal luminosity, implying that high-luminosity magnetars tend to have two symmetric hotspots. Our results are consistent with theoretical predictions, for which the existence of an evolving toroidal magnetic field breaks the symmetry of the surface temperature.
description: 14 pages, 10 figures, 3 tables, Accepted for publication in MNRAS
Resurgent Extrapolation: Rebuilding a Function from Asymptotic Data. Painleve I
Creators: name: Costin, Ovidiu
name: Dunne, Gerald V.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Extrapolation is a generic problem in physics and mathematics: how to use asymptotic data in one parametric regime to learn about the behavior of a function in another parametric regime. For example: extending weak coupling expansions to strong coupling, or high temperature expansions to low temperature, or vice versa. Such extrapolations are particularly interesting in systems possessing dualities. Here we study numerical procedures for performing such an extrapolation, combining ideas from resurgent asymptotics with well-known techniques of Borel summation, Pade approximants and conformal mapping. We illustrate the method with the concrete example of the Painleve I equation, which has applications in many branches of physics and mathematics. Starting solely with a finite number of coefficients from asymptotic data at infinity on the positive real line, we obtain a high precision extrapolation of the function throughout the complex plane, even across the phase transition into the pole region. The precision far exceeds that of state-of-the-art numerical integration methods along the real axis. The methods used are both elementary and general, not relying on Painleve integrability properties, and so are applicable to a wide class of extrapolation problems.
description: 23 pages; 18 figures
RXTE View of the Starburst Galaxies M82 and NGC 253
Creators: name: Rephaeli, Yoel
name: Gruber, Duane
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The two nearby starburst galaxies M82 and NGC 253 were observed for 100 ksec over a 10-month period in 1997. An increase of the M82 flux by a factor ~2 was measured during the period July-November, when compared with the flux measured earlier in 1997. The flux measured in the field centered on M82 includes ~38 of the emission from the Seyfert 1 galaxy M81. The best-fitting model for the earlier emission from M82 is thermal with kT = 6.7 +/- 0.1 keV. In the high flux state, the emission additionally includes either an absorbed second thermal component or absorbed power-law component, with the former providing a much better fit. A likely origin for the temporal variability is a single source in M82. The flux of NGC 253, which did not vary significantly during the period of observations, can be well fit by either a thermal spectrum with kT ~ 3.8 +/- 0.3 keV, or by a power law with photon index of 2.7 +/- 0.10. We have also attempted fitting the measurements to more realistic composite models with thermal and power-law components, such as would be expected from a dominant contribution from binary systems, or Compton scattering of (far) IR radiation by radio emitting electrons. However, the addition of any amount of a power-law component, even with cutoff at 20 keV, only increases chi-square. The 90% confidence upper limit for power law emission with (photon) index 1.5 is only 2.4% of the 2 -- 10 keV flux of M82; the corresponding limit for NGC 253, with index 2.0, is 48%.
description: 18 pages, 4 figures, accepted for publication in A&A
Hieracium kuekenthalianum ZAHN
Creators: name: Brandstätter, G.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Hieracium
Hieracium kuekenthalianum

description: Hieracium kuekenthalianum (ZAHN) ZAHN
Salzburg: Lungau, Hafnergruppe: am Weg entlang vom Unteren Rotgüldensee, 47°5’N 13°24’E, 8946/1, Grünerlengebüsche, Zentralgneis, 1740 u. 1750m, 12.8.2004, Nr. 04-333-2 u. 04-339-2, – ober der Rotgüldenseehütte, 47°6’7’’N 13°24’46’’E, 8846/3, Fichtenwald, Zentalgneis, 1750 m, 12.8.2004, Nr. 04-341-1; – am Aufstieg von der Rotgüldenseehütte zum Schrovinschartl, 47°6’N 13°24’E, 8846/3, SE- bis SSE-expon. ehemalige Mähder, 1920-2000 m, 12.8.2004, Nr. 04-343-2, 04-344-4 u. 04-345-4.
 Bisher wurden aus dem Bundesland Salzburg nur Nachweise aus dem Pinzgau und dem Pongau publiziert (vgl. ZAHN 1936: 202 sub H. tephrosoma, REITER 1954: 17 sub H. bocconei ssp. tephrosoma, LEEDER & REITER 1959: 229 sub H. tephrosoma, sowie STÖHR et al. 2007: 209). H. kuekenthalianum konnte somit erstmals für den Lungau nachgewiesen werden.
description: Published as part of Brandstätter, G., 2009, Bemerkenswerte Hieracium-Funde aus Österreich, pp. 1793-1802 in Linzer biologische Beiträge 41 (2) on page 1798, DOI: 10.5281/zenodo.5280189
Non-dispersive wave packets in periodically driven quantum systems
Creators: name: Buchleitner, Andreas
name: Delande, Dominique
name: Zakrzewski, Jakub
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: With the exception of the harmonic oscillator, quantum wave-packets usually spread as time evolves. We show here that, using the nonlinear resonance between an internal frequency of a system and an external periodic driving, it is possible to overcome this spreading and build non-dispersive (or non-spreading) wave-packets which are well localized and follow a classical periodic orbit without spreading. From the quantum mechanical point of view, the non-dispersive wave-packets are time periodic eigenstates of the Floquet Hamiltonian, localized in the nonlinear resonance island. We discuss the general mechanism which produces the non-dispersive wave-packets, with emphasis on simple realization in the electronic motion of a Rydberg electron driven by a microwave field. We show the robustness of such wavepackets for a model one-dimensional as well as for realistic three dimensional atoms. We consider their essential properties such as the stability versus ionization, the characteristic energy spectrum and long lifetimes. The requirements for experiments aimed at observing such non-dispersive wave-packets are also considered. We also discuss other related phenomena in atomic and molecular physics as well as possible further extensions of the theory.
description: 178 pages, 63 figures, better quality pdf's available at: http://www.spectro.jussieu.fr/Chaos/perso/delande/pubdd_fr.html or http://silly.if.uj.edu.pl/~kuba/pubkub.html
Ehrenfest times for classically chaotic systems
Creators: name: Silvestrov, P. G.
name: Beenakker, C. W. J.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe the quantum mechanical spreading of a Gaussian wave packet by means of the semiclassical WKB approximation of Berry and Balazs. We find that the time scale $τ$ on which this approximation breaks down in a chaotic system is larger than the Ehrenfest times considered previously. In one dimension $τ=\fr{7}{6}λ^{-1}\ln(A/\hbar)$, with $λ$ the Lyapunov exponent and $A$ a typical classical action.
description: 4 pages
Hieracium picroides VILL.
Creators: name: Brandstätter, G.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Hieracium
Hieracium picroides

description: Hieracium picroides VILL.
Kärnten: Hafnergruppe, Pöllatal: am Weg v. d. Kochhütte zur Lanisch-Ochsenhütte, 47°4’9’’N 13°28’27’’E, 8946/2, Mähder, Schiefer, 1693 m, 31.7.2005, Nr. 05-129-1.
 Salzburg: Lungau, Hafnergruppe: am Unteren Rotgüldensee, 47°5’57’’N 13°24’39’’E, 8946/1, Grünerlengebüsche, Zentralgneis, 1740 m, 12.8.2004, Nr. 04-333-3; – am Aufstieg von der Rotgüldenseehütte zum Schrovinschartl, 47°6’19, 22 u. 31’’ N 13 °24’39, 38 u. 45’’ E, 8846/3, ehemalige Mähder, Zentralgneis, 1920, 1970 u. 2030 m, 12.8.2004, Nr. 04-343-3, 04-344-6 u. 04-346-1; – am Aufstieg vom Rotgüldensee zum Silbereck, 47°6’9’’N 13°25’10’’E, 8846/4, NW-expon. Lärchenwald, Zentralgneis, 1770 m, 5.9.2004, Nr. 04-390-1. – Schladminger Tauern, Lessachtal, Kasergraben → Schneegrube, 47°14’41’’N 13°47’3’’E, 8748/4, SSEexpon. Zwergstrauchflur, Gneis, 1880 m, 4.9.2004, Nr. 04-386-2.
 Im Kärntner Atlas (HARTL et al. 1992: 202) wird H. picroides rezent nur von der Turracher Höhe geführt, der oben angeführte Fund ergänzt somit das dort dargestellte Verbreitungsbild um einen aktuellen Nachweis.
Aus Salzburg wurde die Art bis dato nur vom Kasergraben im Lessachtal angegeben (vgl. ZAHN: 1937: 413, REITER 1954: 18 u. LEEDER & REITER 1959: 227). Neben der Bestätigung dieser historischen Angabe werden weitere aktuelle Funde aus dem Bundesland mitgeteilt.
description: Published as part of Brandstätter, G., 2009, Bemerkenswerte Hieracium-Funde aus Österreich, pp. 1793-1802 in Linzer biologische Beiträge 41 (2) on page 1799, DOI: 10.5281/zenodo.5280189
Near-Infrared Photometric Variability of Stars Toward the Chamaeleon I Molecular Cloud
Creators: name: Carpenter, John M.
name: Hillenbrand, Lynne A.
name: Skrutskie, M. F.
name: Meyer, Michael R.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of a J, H, and K_s photometric monitoring campaign of a 0.72 x 6 sq deg. area centered on the Chamaeleon I star forming region. Data were obtained on 15 separate nights over a 4 month time interval using the 2MASS South telescope. Out of a total of 34,539 sources brighter than the photometric completeness limits (J=16.0, H=15.2, K_s=14.8), 95 exhibit near-infrared variability in one or more bands. The variables can be grouped into a population of bright, red objects that are associated with the Chamaeleon I association, and a population of faint, blue variables that are dispersed over the full 6 deg of the survey and are likely field stars or older pre-main-sequence stars unrelated to the present-day Chamaeleon I molecular cloud. Ten new candidate members of Chamaeleon I, including 8 brown dwarf candidates, have been identified based on variability and/or near-infrared excess emission in the J-H vs. H-K_s color-color-diagram. We also provide a compendium of astrometry and J, H, and K_s photometry for previously identified members and candidate members of Chamaeleon I.
description: To appear in AJ; see http://www.astro.caltech.edu/~jmc/variables/cham1/
Floquet engineering Hz-Level Rabi Spectra in Shallow Optical Lattice Clock
Creators: name: Yin, Mo-Juan
name: Wang, Tao
name: Lu, Xiao-Tong
name: Li, Ting
name: Xia, Jing-Jing
name: Zhang, Xue-Feng
name: Chang, Hong
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum metrology with ultra-high precision usually requires atoms prepared in an ultra-stable environment with well-defined quantum states. Thus, in optical lattice clock systems deep lattice potentials are used to trap ultra-cold atoms. However, decoherence, induced by Raman scattering and higher order light shifts, can significantly be reduced if atomic clocks are realized in shallow optical lattices. On the other hand, in such lattices, tunneling among different sites can cause additional dephasing and strongly broadening of the Rabi spectrum. Here, in our experiment, we periodically drive a shallow $^{87}$Sr optical lattice clock. Counter intuitively, shaking the system can deform the wide broad spectral line into a sharp peak with 5.4Hz line-width. With careful comparison between the theory and experiment, we demonstrate that the Rabi frequency and the Bloch bands can be tuned, simultaneously and independently. Our work not only provides a different idea for quantum metrology, such as building shallow optical lattice clock in outer space, but also paves the way for quantum simulation of new phases of matter by engineering exotic spin orbit couplings.
description: 6 pages, 5 figures, comments are welcome and more information at http://cqutp.org/users/xfzhang/
Transport properties of a modified Lorentz gas
Creators: name: Larralde, H.
name: Leyvraz, F.
name: Mejia-Monasterio, C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present a detailed study of the first simple mechanical system that shows fully realistic transport behavior while still being exactly solvable at the level of equilibrium statistical mechanics. The system under consideration is a Lorentz gas with fixed freely-rotating circular scatterers interacting with point particles via perfectly rough collisions. Upon imposing a temperature and/or a chemical potential gradient, a stationary state is attained for which local thermal equilibrium holds for low values of the imposed gradients. Transport in this system is normal, in the sense that the transport coefficients which characterize the flow of heat and matter are finite in the thermodynamic limit. Moreover, the two flows are non-trivially coupled, satisfying Onsager's reciprocity relations to within numerical accuracy as well as the Green-Kubo relations . We further show numerically that an applied electric field causes the same currents as the corresponding chemical potential gradient in first order of the applied field. Puzzling discrepancies in higher order effects (Joule heating) are also observed. Finally, the role of entropy production in this purely Hamiltonian system is shortly discussed.
description: 16 pages, 16 figures, submitted to J. Stat. Phys
Constructing Separable Non-$2π$-Periodic Solutions to the Navier-Lamé Equation in Cylindrical Coordinates Using the Buchwald Representation: Theory and Applications
Creators: name: Sakhr, Jamal
name: Chronik, Blaine A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In a previous paper [Adv. Appl. Math. Mech. 10 (2018), pp. 1025-1056], we used the Buchwald representation to construct several families of separable cylindrical solutions to the Navier-Lamé equation; these solutions had the property of being $2π$-periodic in the circumferential coordinate. In this paper, we extend the analysis and obtain the complementary set of separable solutions whose circumferential parts are elementary $2π$-aperiodic functions. Collectively, we construct eighteen distinct families of separable solutions; in each case, the circumferential part of the solution is one of three elementary $2π$-aperiodic functions. These solutions are useful for solving a wide variety of dynamical problems that involve cylindrical geometries and for which $2π$-periodicity in the angular coordinate is incompatible with the given boundary conditions. As illustrative examples, we show how the obtained solutions can be used to solve certain forced-vibration problems involving open cylindrical shells and open solid cylinders where (by virtue of the boundary conditions) $2π$-periodicity in the angular coordinate is inappropriate. As an addendum to our prior work, we also include an illustrative example of a certain type of asymmetric problem that can be solved using the particular $2π$-periodic subsolutions that ensue when there is no explicit dependence on the circumferential coordinate.
description: arXiv admin note: text overlap with arXiv:1704.06669
Spontaneous Branching of Anode-Directed Streamers between Planar Electrodes
Creators: name: Arrayas, Manuel
name: Ebert, Ute
name: Hundsdorfer, Willem
Publisher: name: arXiv
Year: 2001
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Non-ionized media subject to strong fields can become locally ionized by penetration of finger-shaped streamers. We study negative streamers between planar electrodes in a simple deterministic continuum approximation. We observe that for sufficiently large fields, the streamer tip can split. This happens close to Firsov's limit of `ideal conductivity'. Qualitatively the tip splitting is due to a Laplacian instability quite like in viscous fingering. For future quantitative analytical progress, our stability analysis of planar fronts identifies the screening length as a regularization mechanism.
description: 4 pages, 6 figures, submitted to PRL on Nov. 16, 2001, revised version of March 10, 2002
Hieracium sterzingense ZAHN
Creators: name: Brandstätter, G.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Hieracium
Hieracium sterzingense

description: Hieracium sterzingense ZAHN
Salzburg: Lungau, Hohe Tauern, Hafnergruppe, am Weg vom Schrovinschartl zum Jh. Muritzen, 47°7’9’’N 13°24’29’’E, 8846/3, Zwergstrauchflur, Zentralgneis, 1980 m, 12.8.2004, Nr. 04- 351-1.
 Das überaus seltene Hieracium sterzingense tritt nach GOTTSCHLICH in FISCHER et al. (2008: 1003) rezent nur in Kärnten, Nordtirol und Vorarlberg auf.
Die aktuelle Angabe für Kärnten bezieht sich auf einen Fund G. Gottschlich´s zwischen der Straniger Alm und dem Lodintörl in den Karnischen Alpen, Quadrant 9444/2, im Jahr 2000, welcher in der Typus-Unterart vorliegt (schriftl. Mitteilung G. Gottschlich 2009). Diese wurde, basierend auf einer Aufsammlung Huter´s (Herbarium BRIX-1409, -1410) vom Jaufen bei Sterzing, wo sie nach WILHALM et al. (2006: 105) als verschollen gilt, von Zahn in Koch´s Synopsis der Deutschen und Schweizer Flora beschrieben (ZAHN 1901: 1893f.).
 Bei den Vorkommen in Tirol (Steissbachtal bei St. Anton am Arlberg) und Vorarlberg (Verwallgruppe: zwischen Zamangalpe und Furkla) handelt es sich um die bisher einzig publizierten Fundstellen (vgl. ZAHN 1936: 246 sowie GOTTSCHLICH et al. 1999: 540) der Subspezies antonii VETTER & ZAHN (nom. inval. – descr. germ.), zu der auch der Neufund aus Salzburg zu stellen ist.
description: Published as part of Brandstätter, G., 2009, Bemerkenswerte Hieracium-Funde aus Österreich, pp. 1793-1802 in Linzer biologische Beiträge 41 (2) on page 1799, DOI: 10.5281/zenodo.5280189
Analogue of the pole-skipping phenomenon in acoustic black holes
Creators: name: Yuan, Haiming
name: Ge, Xian-Hui
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The pole-skipping phenomenon is a special property of the retarded Green's function of black hole perturbations. We turn to its analog in acoustic black holes, which may relate to experiments. The frequencies of these special points are located at negative integer (imaginary) Matsubara frequencies $ω=-i2πTn$, which are consistent with the imaginary frequencies of quasinormal modes (QNMs). This implies that the lower-half plane pole-skipping phenomena have the same physical meaning as the imaginary part of QNMs, which represents the dissipation of perturbation of acoustic black holes and is related to the instability time scale of perturbation.
Bashar Malkawi, Reforming Rules of Origin in GAFTA
Creators: name: Malkawi, Bashar H.
Publisher: name: figshare
Year: 2019
Subjects: subject: 180105 Commercial and Contract Law
subject: FOS: Law

description: Free trade agreements are about reducing tariffs, market access in services, protection of intellectual property rights, streamlining customs procedures, trade remedy measures, and dispute settlement mechanism. Equally important if not even more important than these provisions is the designation of rules of origin. Many benefits can be lost if restrictive rules of origin are incorporated. Rules of origin are supposed to be straightforward and easy-to-follow methods used to determine origin of imported goods. The policy question that arises is how to improve trade integration among Arab countries through more effective rules of origin.
Dynamical localization simulated on a few qubits quantum computer
Creators: name: Benenti, Giuliano
name: Casati, Giulio
name: Montangero, Simone
name: Shepelyansky, Dima L.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: Condensed Matter (cond-mat)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We show that a quantum computer operating with a small number of qubits can simulate the dynamical localization of classical chaos in a system described by the quantum sawtooth map model. The dynamics of the system is computed efficiently up to a time $t\geq \ell$, and then the localization length $\ell$ can be obtained with accuracy $ν$ by means of order $1/ν^2$ computer runs, followed by coarse grained projective measurements on the computational basis. We also show that in the presence of static imperfections a reliable computation of the localization length is possible without error correction up to an imperfection threshold which drops polynomially with the number of qubits.
description: 8 pages, 8 figures
Evidences of Bolgiano scaling in 3D Rayleigh-Benard convection
Creators: name: Calzavarini, Enrico
name: Toschi, Federico
name: Tripiccione, Raffaele
Publisher: name: arXiv
Year: 2001
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We present new results from high-resolution high-statistics direct numerical simulations of a tri-dimensional convective cell. We test the fundamental physical picture of the presence of both a Bolgiano-like and a Kolmogorov-like regime. We find that the dimensional predictions for these two distinct regimes (characterized respectively by an active and passive role of the temperature field) are consistent with our measurements.
description: 4 pages, 3 figures
Detection of HD in emission towards Sagittarius B2
Creators: name: Polehampton, E. T.
name: Baluteau, J. -P.
name: Ceccarelli, C.
name: Swinyard, B. M.
name: Caux, E.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The giant molecular cloud Sagittarius B2, located near the Galactic Centre, has been observed in the far-infrared by the ISO Long Wavelength Spectrometer. Wavelengths in the range 47-196 microns were covered with the high resolution Fabry-Perot spectrometer, giving a spectral resolution of 30-40 km/s. The J=1-0 and J=2-1 rotational transitions of HD fall within this range at 112 microns and 56 microns. A probable detection was made of the ground state J=1-0 line in emission but the J=2-1 line was not detected above the noise. This allowed us to calculate an upper limit on the temperature in the emitting region of approximately 80 K and a value for the deuterium abundance in the Sgr B2 envelope of D/H=(0.2-11)x10^-6.
description: 4 pages, 1 figure, accepted by A&A
Pristiphora (Pristiphora) thalictri TAEGER et al. 1998
Creators: name: Macek, Jan
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Tenthredinidae
Pristiphora
Pristiphora thalictri

description: Pristiphora (Pristiphora) thalictri (Kriechbaumer, 1884)
(Figs 3, 6, 9, 12)
 Nematus thalictri Kriechbaumer, 1884: 105–106 (original description).
 Pristiphora thalictri: KONTUNIEMI (1960): 90 (host plant); TAKEUCHI (1949): 49 (host plant); OKUTANI (1967):92 (host plant); LISTON (1995): 131 (host plant); TAEGER et al. (1998): 115 (host plant); PSCHORN- WALCHER & ALTENHOFER (2006): 1624 (host plant).
 Material examined. CZECH REPUBLIC: BOHEMIA mer.: Šumava NP, Černý Kříž (7149), 7.vi.2014, 6 larvae on Thalictrum aquilegifolium; 19.vi.2015, 18 larvae on Thalictrum aquilegifolium, all J. Macek lgt. & det. (NMPC).
 Description of the last instar larva. Body length 12–13 mm. Colour. Head yellow brown, with brownish reticulate pattern on vertex; trunk yellow green with narrow translucent dark blood vessel.
 Discussion. The larva was shortly descibed and its host plant, Thalictrum aquilegifolium, recorded by KRIECHBAUMER (1884, as Nematus thalictri). Subsequently this host species was also mentioned by KONTUNIEMI (1960), TAEGER et al. (1998), LACOURT (1999), and PSCHORN- WALCHER (2006). Additionally, TAEGER et al. (1998) noticed larvae of an unrecognized species feeding on Thalictrum minus on a xerotermic site in Kyffhäuser (Fränkischer Jura, Germany), which might refer to P. sareptana. Additional food plants from Japan, Thalictrum thunbergii (OKUTANI 1956) and T. minus (TAKEUCHI 1949), are not evaluated here, and need confirmation.
 Distribution. Palaearctic: Albania, Austria, Belgium, Croatia, Czech Republic, France, Germany, Great Britain, Italy, Japan, Latvia, Romania, Russia, Slovakia, Switzerland, Ukraine (TAEGER & BLANK 2011).
description: Published as part of Macek, Jan, 2016, Descriptions of larvae of the Pristiphora thalictri group of the Czech Republic (Hymenoptera: Symphyta: Tenthredinidae), pp. 785-794 in Acta Entomologica Musei Nationalis Pragae 56 (2) on pages 791-793, DOI: 10.5281/zenodo.5306285
Asymptotic Behavior of the Emptiness Formation Probability in the Critical Phase of XXZ Spin Chain
Creators: name: Korepin, V. E.
name: Lukyanov, S.
name: Nishiyama, Y.
name: Shiroishi, M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We study the Emptiness Formation Probability (EFP) for the spin 1/2 XXZ spin chain. EFP P(n) detects a formation of ferromagnetic string of the length n in the ground state. It is expected that EFP decays in a Gaussian way for large strings P(n) ~ n^{-gamma} C^{-n^2}. Here, we propose the explicit expressions for the rate of Gaussian decay C as well as for the exponent gamma. In order to confirm the validity of our formulas, we employed an ab initio simulation technique of the density-matrix renormalization group to simulate XXZ spin chain of sufficient length. Furthermore, we performed Monte-Carlo integration of the Jimbo-Miwa multiple integral for P(n). Those numerical results for P(n) support our formulas fairly definitely.
description: 9 pages, 2 figures
Chelostoma campanularum
Creators: name: Ban, C.
name: Ljubomirov, T.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Chelostoma
Chelostoma campanularum

description: Chelostoma campanularum (KIRBY 1802)
P r e v i o u s r e c o r d s: Mehadia, Oradea, Româneşti, Sibiu, Siseşti (HENRICH 1881, MOCSÁRY 1897, ZANDEN & MATACHE 1986), Ineu, Măgura Cisnădiei, Retezat Mountains (AFTENE 1995).
N e w m a t e r i a l s t u d i e d 13, Slătioara River, 9.VII.1995; 13, Pietrosul Rodnei, 10. VII.1995; 13, Izvorul lui Dragoş, 13. VII.1995; 233, Colibi, 9. VII.1996; 433, Văleni, 7. VII.1995; 13, Crasna Vişeu, 19. VII.2004; 13, Făina, 21. VII.2004; 13, Poienile de sub Munte, 25. VII.2004; 13, Dragomireşti, 22. VI.2003; 13, Bratcu Valley, 6. VII.2004; 13, 1♀, Gura Bârsei Chalet, 4. VII.2004; 13, Valea cu Peşti, 6.VIII.2004 (Fig. 2).
description: Published as part of Ban, C. & Ljubomirov, T., 2009, New data on the distribution of some Megachilinae (Hymenoptera: Apoidea: Megachilidae) in Romania, pp. 1803-1816 in Linzer biologische Beiträge 41 (2) on page 1804, DOI: 10.5281/zenodo.5280191
Evolution of Mercury's Earliest Atmosphere
Creators: name: Jäggi, Noah
name: Gamborino, Diana
name: Bower, Dan J.
name: Sossi, Paolo A.
name: Wolf, Aaron S.
name: Oza, Apurva V.
name: Vorburger, Audrey
name: Galli, André
name: Wurz, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: MESSENGER observations suggest a magma ocean formed on proto-Mercury, during which evaporation of metals and outgassing of C- and H-bearing volatiles produced an early atmosphere. Atmospheric escape subsequently occurred by plasma heating, photoevaporation, Jeans escape, and photoionization. To quantify atmospheric loss, we combine constraints on the lifetime of surficial melt, melt composition, and atmospheric composition. Consideration of two initial Mercury sizes and four magma ocean compositions determine the atmospheric speciation at a given surface temperature. A coupled interior-atmosphere model determines the cooling rate and therefore the lifetime of surficial melt. Combining the melt lifetime and escape flux calculations provide estimates for the total mass loss from early Mercury. Loss rates by Jeans escape are negligible. Plasma heating and photoionization are limited by homopause diffusion rates of $\sim10^{6}$ kg/s. Loss by photoevaporation depends on the timing of Mercury formation and assumed heating efficiency and ranges from $\sim10^{6.6}$ to $\sim10^{9.6}$ kg/s. The material for photoevaporation is sourced from below the homopause and is therefore energy-limited rather than diffusion-limited. The timescale for efficient interior-atmosphere chemical exchange is less than ten thousand years. Therefore, escape processes only account for an equivalent loss of less than 2.3 km of crust ($0.3\%$ of Mercury's mass). Accordingly, $\leq0.02\%$ of the total mass of H$_2$O and Na is lost. Therefore, cumulative loss cannot significantly modify Mercury's bulk mantle composition during the magma ocean stage. Mercury's high core:mantle ratio and volatile-rich surface may instead reflect chemical variations in its building blocks resulting from its solar-proximal accretion environment.
description: 25 pages, 8 figures, accepted to be published in The Planetary Science Journal
Orthomodular Lattices and a Quantum Algebra
Creators: name: Megill, Norman D.
name: Pavicic, Mladen
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that one can formulate an algebra with lattice ordering so as to contain one quantum and five classical operations as opposed to the standard formulation of the Hilbert space subspace algebra. The standard orthomodular lattice is embeddable into the algebra. To obtain this result we devised algorithms and computer programs for obtaining expressions of all quantum and classical operations within an orthomodular lattice in terms of each other, many of which are presented in the paper. For quantum disjunction and conjunction we prove their associativity in an orthomodular lattice for any triple in which one of the elements commutes with the other two and their distributivity for any triple in which a particular one of the elements commutes with the other two. We also prove that the distributivity of symmetric identity holds in Hilbert space, although it remains an open problem whether it holds in all orthomodular lattices, as it does not fail in any of over 50 million Greechie diagrams we tested.
description: 21 pages, AMSLaTeX, http://m3k.grad.hr/pavicic, minor misprints corrected and a note on incorrectnes of Dalla Chiara and Giuntini's paper http://xxx.lanl.gov/abs/quant-ph/0101028 added
A host of traveling waves in a model of three-dimensional water-wave dynamics
Creators: name: Pego, Robert L.
name: Quintero, Jose Raul
Publisher: name: arXiv
Year: 2001
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences
subject: 76B15, 35Q35, 35M10

description: We describe traveling waves in a basic model for three-dimensional water-wave dynamics in the weakly nonlinear long-wave regime. Small solutions that are periodic in the direction of translation (or orthogonal to it) form an infinite-dimensional family. We characterize these solutions through spatial dynamics, by reducing a linearly ill-posed mixed-type initial-value problem to a center manifold of infinite dimension and codimension. A unique global solution exists for arbitrary small initial data for the two-component bottom velocity, specified along a single line in the direction of translation (or orthogonal to it). A dispersive, nonlocal, nonlinear wave equation governs the spatial evolution of bottom velocity.
description: 22 pages with 1 figure, LaTeX2e with amsfonts, epsfig packages
Discovery of the neutron star nature of SLX 1737-282
Creators: name: Zand, J. J. M. in 't
name: Verbunt, F.
name: Kuulkers, E.
name: Markwardt, C.
name: Bazzano, A.
name: Cocchi, M.
name: Cornelisse, R.
name: Heise, J.
name: Natalucci, L.
name: Ubertini, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: SLX 1737-282 is a persistent moderately bright X-ray source 1.2 deg from the Galactic center. X-ray observations with the Wide Field Cameras on BeppoSAX have for the first time revealed the true nature of SLX 1737-282: a 15-min long thermonuclear flash was detected exposing the source as a neutron star in a binary system. The flash was Eddington-limited constraining the distance to between 5 and 8 kpc. We analyze BeppoSAX, ROSAT, and RXTE data on SLX 1737-282. The persistent 0.5-200 keV luminosity is close to or less than 1% of the Eddington limit which implies a rarely-seen circumstance for thermonuclear flash activity.
description: Accepted for publication in A&A Letters
Thermodynamics of Antiferromagnetic Solids in Magnetic Fields
Creators: name: Brauner, Tomáš
name: Hofmann, Christoph P.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the thermodynamic properties of antiferromagnetic solids subjected to a combination of mutually orthogonal uniform magnetic and staggered fields. Low-temperature series for the pressure, order parameter and magnetization up to two-loop order in the effective expansion are established. We evaluate the self-energy and the dispersion relation of the dressed magnons in order to discuss the impact of spin-wave interactions on thermodynamic observables.
description: 23 pages, 6 figures
Correlation length of the 1D Hubbard Model at half-filling : equal-time one-particle Green's function
Creators: name: Umeno, Y.
name: Shiroishi, M.
name: Kluemper, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The asymptotics of the equal-time one-particle Green's function for the half-filled one-dimensional Hubbard model is studied at finite temperature. We calculate its correlation length by evaluating the largest and the second largest eigenvalues of the Quantum Transfer Matrix (QTM). In order to allow for the genuinely fermionic nature of the one-particle Green's function, we employ the fermionic formulation of the QTM based on the fermionic R-operator of the Hubbard model. The purely imaginary value of the second largest eigenvalue reflects the k_F (= pi/2) oscillations of the one-particle Green's function at half-filling. By solving numerically the Bethe Ansatz equations with Trotter numbers up to N=10240, we obtain accurate data for the correlation length at finite temperatures down into the very low temperature region. The correlation length remains finite even at T=0 due to the existence of the charge gap. Our numerical data confirm Stafford and Millis' conjecture regarding an analytic expression for the correlation length at T=0.
description: 7 pages, 6 figures
Chelostoma distinctum STOECKHERT 1929
Creators: name: Ban, C.
name: Ljubomirov, T.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Chelostoma
Chelostoma distinctum

description: Chelostoma distinctum STOECKHERT 1929
P r e v i o u s r e c o r d s: Bacău, Plopeni, Sibiu, Tatlageac (AFTENE 1995).
N e w m a t e r i a l s t u d i e d 13, "Podul Slătioarei" Forest Range, 6.VII.1995; 13, Hututeanca Stream Valley, 17. VI.2003; 13, Idişor Stream, 23. VI.2003; 13, Sărata, 25. VI.2004 (Fig. 3).
description: Published as part of Ban, C. & Ljubomirov, T., 2009, New data on the distribution of some Megachilinae (Hymenoptera: Apoidea: Megachilidae) in Romania, pp. 1803-1816 in Linzer biologische Beiträge 41 (2) on page 1804, DOI: 10.5281/zenodo.5280191
The diet of a forest-dependent frog species, Odorrana morafkai (Anura: Ranidae), in relation to habitat disturbance: supplementary material
Creators: name: Le, Duong Thi Thuy
name: Rowley, Jodi J.L.
name: Tran, Dao Thi Anh
name: Hoang, Huy Duc
Publisher: name: Brill Online
Year: 2019
Subjects: subject: 60299 Ecology not elsewhere classified
subject: FOS: Biological sciences

description: While deforestation is one of the greatest drivers of biodiversity loss, our understanding of the effects of habitat modification on species is limited. We investigated the diet of a forest-dwelling frog species, Morafka’s frog (Odorrana morafkai), in a highland forest in Vietnam in relation to habitat disturbance, sex and season. We surveyed the species at 45 sites in forest of varying disturbance and examined its diet using stomach flushing, estimating prey availability via trapping. We detected significantly fewer O. morafkai in highly disturbed habitats compared to moderately disturbed or non-disturbed habitats. We revealed that O. morafkai is a dietary generalist, identifying 28 prey types, primarily invertebrates. Prey composition, the number of prey items per stomach and prey volume per stomach did not vary between disturbance levels. Diet did not vary significantly between sexes, except that females had a higher prey volume. Prey composition in the species varied between seasons, with Coleoptera and Orthoptera dominating the diet in the rainy season and Lepidoptera in the dry season. The number of prey items per stomach and prey volume were significantly higher in the rainy season. There was a significant correlation between prey availability and diet composition. The low number of O. morafkai detected in highly disturbed habitats suggests that this habitat may not be optimal for the species, despite having a generalist feeding strategy and presumed high mobility. This study provides a window into the impact of an increasing threat, habitat disturbance, on forest-dependent amphibian species.
Functional Equations for Lexicographic Products
Creators: name: Kuhlmann, Franz--Viktor
name: Kuhlmann, Salma
name: Shelah, Saharon
Publisher: name: arXiv
Year: 2001
Subjects: subject: Logic (math.LO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We generalize the main result of math.RA/9608214 concerning the convex embeddings of a chain Gamma in a lexicographic power Delta^Gamma. For a fixed nonempty chain Delta, we derive necessary and sufficient conditions for the existence of nonempty solutions Gamma to each of the lexicographic functional equations (Delta^Gamma)^{<=0} simeq Gamma, (Delta^Gamma) simeq Gamma, and (Delta^Gamma)^{<0} simeq Gamma.
Structural and magnetic response of CrI3 monolayer to electric field
Creators: name: Ghosh, S.
name: Stojic, N.
name: Binggeli, N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A recent theoretical study reported large effects of perpendicular electric fields on the atomic structure of a monolayer CrI3, which could be related to the microscopic origin of the technologically promising and experimentally observed electrical switching of magnetization in bilayer CrI3. However, those theoretical results are not in line with a previous theoretical finding of only slight changes under a strong electric field in CrI3. Given the important consequences that the presence of large structural distortions in an electric field might have, we investigated the effects of external electric fields on the CrI3 monolayer using density functional theory for a wide range of field strengths. Conclusively, we find that the structural response of CrI3 to the applied perpendicular electric field is extremely small due to a very efficient electronic screening of the electric field within the monolayer. Therefore it cannot be the origin of the observed electrical switching of magnetization in the bilayer CrI3. Furthermore, we find that the very small linear dependence of the structural changes on the electric field persists up to a field value of 0.45 V/Angstrom, while the Cr magnetic moment remains constant for the same strengths of electric field.
description: 15 pages, 4 figures
Chelostoma florisomne
Creators: name: Ban, C.
name: Ljubomirov, T.
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Megachilidae
Chelostoma
Chelostoma florisomne

description: Chelostoma florisomne (LINNAEUS 1758)
P r e v i o u s r e c o r d s Işelniţa, Leleşti, Ocna Sibiului, Sibiu (AFTENE 1979, ZANDEN & MATACHE 1986), Covasna, Racova (AFTENE & GOAGĂ 1993), Dumbrava Sibiului, Ineu, Leleşti, Lereşti, Poenarii Rali, Sadu River, Retezat Mountains-Zlata Chalet, Târgu Jiu, Şura Mică, Ştezii Valley (AFTENE 1995), Bârsa Valley (TOMOZEI 2006).
N e w m a t e r i a l s t u d i e d 233, 2♀♀, Dumbrava Sibiului, 25.V.1996; 233, Săpânciora Valley, 20. V.1996; 233, Repedea-Smereceni Clearing, 22. VI.1997, Elmo Clearing, 24. VI.1997; 233, Pietroşani, 28.IV.2004; 13, Copăniţa, 17. V.2004; 1♀, Lainici Monastery, 7. VII.2004; 233, Sărata, 4. V.2005, 233, 28.IV.2008; 2♀♀, Scorei, 21.VIII.2004; 13, Valea lui Ivan, 27. VI.2003; 433, 2♀♀, Valea Fagilor, 24. V.2005; 233, Comana, 4. V.2006 (Fig. 4).
description: Published as part of Ban, C. & Ljubomirov, T., 2009, New data on the distribution of some Megachilinae (Hymenoptera: Apoidea: Megachilidae) in Romania, pp. 1803-1816 in Linzer biologische Beiträge 41 (2) on pages 1804-1805, DOI: 10.5281/zenodo.5280191
Canonical explicit Bäcklund transformations with spectrality for constrained flows of soliton hierarchies
Creators: name: Zeng, Yunbo
name: Zhu, Yiqing
name: Xiao, Ting
name: Dai, Huihui
Publisher: name: arXiv
Year: 2001
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: It is shown that explicit Bäcklund transformations (BTs) for the high-order constrained flows of soliton hierarchy can be constructed via their Darboux transformations and Lax representation, and these BTs are canonical transformations including Bäcklund parameter $η$ and possess a spectrality property with respect to $η$ and the 'conjugated' variable $μ$ for which the pair $(η, μ)$ lies on the spectral curve. As model we present the canonical explicit BTs with the spectrality for high-order constrained flows of the Kaup-Newell hierarchy and the KdV hierarchy.
description: 21 pages, Latex, to be published in "PHYSICA A"
Bow shocks, Wiggling Jets, and Wide-Angle Winds: A High Resolution Study of the Entrainment Mechanism of the PV Ceph Molecular (CO) Outflow
Creators: name: Arce, Hector G.
name: Goodman, Alyssa A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a new set of high-resolution molecular line maps of the gas immediately surrounding various Herbig-Haro (HH) knots of the giant HH flow HH 315, from the young star PV Cephei. The observations, aimed at studying the entrainment mechanism of the 2.6 pc-long HH 315 flow, include IRAM 30m maps of the 12CO(2-1), 12CO(1-0), and 13CO(1-0) lines, with beam sizes of 11'', 21'', and 22'', respectively. We compare the morphology and the kinematics of the outflow gas, as well as the temperature and momentum distribution of the molecular outflow with those predicted by different entrainment models. With our detailed study we are able to conclude that jet bow shock entrainment by an episodic stellar wind, with a time-varying axis, produces most of the high-velocity molecular outflow observed far from the source. In addition, near PV Cephei we find evidence for a poorly collimated, wide-angle, molecular outflow and a collimated wiggling jet-like molecular outflow. We propose that the poorly collimated component is entrained by a wide-angle wind, and the collimated component is entrained by a variable jet with internal working surfaces. If this picture is true, then a stellar wind model which allows for the coexistence of a wide-angle component and a collimated (jet-like) stellar wind component is needed to explain the observed properties of the PV Ceph outflow. The wiggling axis of the redshifted molecular outflow lobe indicates that the outflow ejection axis is changing over time. We find that the time-scale of the axis variation shown by the molecular outflow lobe is about a factor of 10 less than that shown by the large-scale optical HH knots.
description: 41 pages, including 7 tables. 18 figures included separately. Version with embedded full-resolution figures available at http://www.astro.caltech.edu/~harce/papers . Accepted by The Astrophysical Journal
Quality Control Characterization of α-Synuclein Preformed Fibrils (PFFs)
Creators: name: Del Cid Pellitero, Esther
name: Shlaifer, RIna
name: Luo, Wen
name: Krahn, Andrea
name: Nguyen-Renou, Emmanuelle
name: Maneca, Destiny-Love
name: Rao, Trisha
name: Beitel, Lenore
name: Durcan, Thomas M.
Publisher: name: Zenodo
Year: 2019
Subjects: alpha-synuclein
quality-control
fluorescent imaging
electron microscopy
dynamic light scattering (DLS)

description: This protocol describes how to:
 • Determine fibril length of sonicated unlabelled α-synuclein preformed fibrils (PFFs) by dynamic light scattering (DLS) and electron microscopy (EM)
 • Confirm cellular uptake of fluorescently-labelled α-synuclein PFFs by immunofluorescence (IF)
Metastability in Glauber dynamics in the low-temperature limit: Beyond exponential asymptotics
Creators: name: Bovier, Anton
name: Manzo, Francesco
Publisher: name: arXiv
Year: 2001
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider Glauber dynamics of classical spin systems of Ising type in the limit when the temperature tends to zero in finite volume. We show that information on the structure of the most profound minima and the connecting saddle points of the Hamiltonian can be translated into sharp estimates on the distribution of the times of metastable transitions between such minima as well as the low lying spectrum of the generator. In contrast with earlier results on such problems, where only the asymptotics of the exponential rates is obtained, we compute the precise pre-factors up to multiplicative errors that tend to 1 as $T\downarrow 0$. As an example we treat the nearest neighbor Ising model on the 2 and 3 dimensional square lattice. Our results improve considerably earlier estimates obtained by Neves-Schonmann and Ben Arous-Cerf. Our results employ the methods introduced by Bovier, Eckhoff, Gayrard, and Klein.
description: 18pp, LaTeX