cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
WIMP astronomy and particle physics with liquid-noble and cryogenic direct-detection experiments
Creators: name: Peter, Annika H. G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Once weakly-interacting massive particles (WIMPs) are unambiguously detected in direct-detection experiments, the challenge will be to determine what one may infer from the data. Here, I examine the prospects for reconstructing the local speed distribution of WIMPs in addition to WIMP particle-physics properties (mass, cross sections) from next-generation cryogenic and liquid-noble direct-detection experiments. I find that the common method of fixing the form of the velocity distribution when estimating constraints on WIMP mass and cross sections means losing out on the information on the speed distribution contained in the data and may lead to biases in the inferred values of the particle-physics parameters. I show that using a more general, empirical form of the speed distribution can lead to good constraints on the speed distribution. Moreover, one can use Bayesian model-selection criteria to determine if a theoretically-inspired functional form for the speed distribution (such as a Maxwell-Boltzmann distribution) fits better than an empirical model. The shape of the degeneracy between WIMP mass and cross sections and their offset from the true values of those parameters depends on the hypothesis for the speed distribution, which has significant implications for consistency checks between direct-detection and collider data. In addition, I find that the uncertainties on theoretical parameters depends sensitively on the upper end of the energy range used for WIMP searches. Better constraints on the WIMP particle-physics parameters and speed distribution are obtained if the WIMP search is extended to higher energy (~ 1 MeV).
description: 25 pages, 27 figures, matches published version
Phegea51-2. Editorial. Assessing Earth’s biotic diversity in natural history museums – gone with the wind?
Creators: name: Löbl, Ivan
Publisher: name: figshare
Year: 2023
Subjects: Animal behaviour

description: Many members of our society ask in formal and informal meetings what is going on in natural history museums and especially in insect collections: little activity, little motivation, and little support. The editor-in-chief of Phegea asked an expert in museum insect collections for his opinion. Dr. Ivan Löbl is based at the natural history museum in Geneva and edited an impressive series of catalogues of Palaearctic Coleoptera https://brill.com/display/serial/CPC
Fluorescence excitation of isolated, jet-cooled 3-hydroxyflavone: the rate of excited state intramolecular proton transfer from homogeneous linewidths
Creators: name: Ernsting, Niko P.
name: Dick, Bernhard
Publisher: name: Universität Regensburg
Year: 1989
Subjects: subject: Fluorescence (of hydroxyflavon); Protonation and Proton transfer reaction (intramol., in hydroxyflavone); fluorescence excitation hydroxyflavone; laser excitation hydroxyflavone; intramol proton transfer hydroxyflavone
subject: 540 Chemie

description: The laser-induced fluorescence excitation of 3-hydroxyflavone, cooled by seeding in a supersonic expansion of He, was investigated in the range 28,000-28,500 cm-1. The vibronic origin of the S0-S1 (pp*) electronic transition of the unperturbed normal mol. form is at 28080.3 cm-1. The excitation spectrum is characterized by several progressions with vibrational spacing of 45 cm-1, and by severe spectral congestion at excess vibrational energy >225 cm-1. The prominent vibronic bands are best represented by Lorentzian lineshapes. The vibronic lifetimes, in the range 1.3-2.0 ps, are short because of excited-state intramol. proton transfer.
description: CAN 112:67727 76-5 Electric Phenomena 577-85-5 Role: PRP (Properties) (fluorescence excitation of and intramol. proton transfer in); 12408-02-5 Role: USES (Uses) (protonation and Proton transfer reaction, intramol., in hydroxyflavone)
Second-harmonic generation in centro-symmetric media
Creators: name: Epperlein, D.
name: Dick, Bernhard
name: Marowsky, G.
name: Reider, G. A.
Publisher: name: Universität Regensburg
Year: 1987
Subjects: subject: Magnetic moment; Quadrupole moment (contributions to second harmonic generation of centro-sym. media); Laser radiation (second-harmonic generation of, in centrosym. media); Optical nonlinear property (second harmonic coeff., in centro-sym. media); second harmonic generation centrosym media; magnetic dipole second harmonic generation; elec quadrupole second harmonic generation
subject: 530 Physik
subject: 540 Chemie

description: The magnetic-dipole and elec.-quadrupole contributions to second-harmonic generation (SHG) of centro-sym. media were studied. The phenomenol. parameters a, b, g can be arranged to form an effective .hivin.cs(2)-tensor, which describes dipole-forbidden SHG as the effect of a surface layer upon excitation with a single plane electromagnetic wave. An exptl. technique is proposed allowing a detn. of the usually very small g term due to magnetic-dipole interaction using coherent compensation of its contribution by a coverage with an appropriate dye monolayer.
description: CAN 107:144562 73-10 Optical, Electron, and Mass Spectroscopy and Other Related Properties
Excited-state intramolecular proton transfer in jet-cooled 2,5-bis(2-benzothiazolyl)hydroquinone
Creators: name: Ernsting, N. P.
name: Mordzinski, A.
name: Dick, Bernhard
Publisher: name: Universität Regensburg
Year: 1987
Subjects: subject: Tautomerization (intramol., of excited bis(benzothiazolyl)hydroquinone); Fluorescence (of bis(benzothiazolyl)hydroquinone); Energy level transition (electronic, of bis(benzothiazolyl)hydroquinone); Protonation and Proton transfer reaction (intramol., of excited bis(benzothiazolyl)hydroquinone); Energy level transition (vibronic, of bis(benzothiazolyl)hydroquinone); tautomerization intramol benzothiazolylhydroquinone; proton shift excited benzothiazolylhydroquinone; fluorescence excited benzothiazolylhydroquinone; jet cooled excited benzothiazolylhydroquinone
subject: 540 Chemie

description: The fluorescence of 2,5-bis(benzothiazolyl)hydroquinone was studied for isolated mols. cooled in a supersonic free neon jet. It consists of a strongly Stokes-shifted fluorescence band, and it is assigned to the mol. which is formed by excited-state intramol. proton transfer. The fluorescence excitation spectrum shows a progression in a 114-cm-1 vibrational mode of the excited state. The obsd. spectrum is more congested than that of the parent oxazole under otherwise identical exptl. conditions. The thiazole has no significant intrinsic barrier to excited-state intramol. proton transfer. Weak vibronic bands were obsd. by fluorescence excitation in the adjoining long-wavelength spectral region which could indicate nonvertical transitions to the proton-transferred excited mol.
description: CAN 106:119042 22-6 Physical Organic Chemistry 33450-09-8 Role: PRP (Properties) (excited-state intramol. proton transfer in jet-cooled, fluorescence and); 12408-02-5 Role: PRP (Properties) (protonation and Proton transfer reaction, intramol., of excited bis(benzothiazolyl)hydroquinone)
Daemonic quantum battery charged by thermalization
Creators: name: Satriani, Matias Araya
name: Barra, Felipe
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The reduced state of a small system strongly coupled to a charger in thermal equilibrium may be athermal and used as a small battery once disconnected. By harnessing the battery-charger correlations, the battery's extractable energy can increase above the ergotropy. We introduce a protocol that uses a quantum system as a memory that measures the charger and leaves the battery intact in its charged state. Using the information gained from the measurement, the daemonic ergotropy of the battery is extracted. Then the battery is reconnected to the charger, thermalizing and charging it. However, the memory should return to its initial standard state to close the thermodynamic cycle. Thus, on the one hand, the work cost of the cycle is the sum of the disconnecting and reconnecting battery-charger work plus the measurement and erasure work. On the other hand, the extracted energy is the daemonic ergotropy of the battery plus the ergotropy of the memory. The ratio of these quantities defines the efficiency of the cycle. The protocol is exemplified by a modified transverse spin 1/2 Ising chain, one spin functioning as the battery and the others as the charger. The memory is another auxiliary spin 1/2. We found pairs of measurement schemes from which we extract the same daemonic ergotropy from the battery, they dissipate the same amount of energy, and one leaves the memory in an active state, the other in a passive state. We study the memory's ergotropy and the daemonic ergotropy of the battery. We find that with measurements, the efficiency can surpass that of the unmeasured protocol, given conditions on temperature, coupling, and choice of the measurement operators.
description: 12 pages, 5 figures
Flippable tilings of constant curvature surfaces
Creators: name: Fillastre, Francois
name: Schlenker, Jean-Marc
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We call "flippable tilings" of a constant curvature surface a tiling by "black" and "white" faces, so that each edge is adjacent to two black and two white faces (one of each on each side), the black face is forward on the right side and backward on the left side, and it is possible to "flip" the tiling by pushing all black faces forward on the left side and backward on the right side. Among those tilings we distinguish the "symmetric" ones, for which the metric on the surface does not change under the flip. We provide some existence statements, and explain how to parameterize the space of those tilings (with a fixed number of black faces) in different ways. For instance one can glue the white faces only, and obtain a metric with cone singularities which, in the hyperbolic and spherical case, uniquely determines a symmetric tiling. The proofs are based on the geometry of polyhedral surfaces in 3-dimensional spaces modeled either on the sphere or on the anti-de Sitter space.
description: 24 pages, 3 figures. v2: added a thm on going from one hyperbolic metric to another by a flip. v3: small improvements, final version
Government intervention in financial markets
Creators: name: Xiao, Kairong
Publisher: name: University of British Columbia
Year: 2017

description: Governments play an important role in financial markets around the world. This thesis studies theoretical mechanisms and empirical consequences of government actions in financial markets in order to better understand the organization of the financial sector and the inner working of governments. The first essay “Shadow Banks, Deposit Competition, and Monetary Policy” studies the transmission mechanism of monetary policy through the shadow banking system, a group of non-bank financial intermediaries conducting banking business in the economy. This essay shows empirically and theoretically that the shadow banking system partially offsets the impact of monetary policy on the traditional commercial banking system and may lead to unintended consequences in terms of the stability of the financial system. The second essay “Regulation and Market Liquidity” (co-authored with Professor Francesco Trebbi), explores whether the post-crisis financial regulations, including the Dodd-Frank Act and Basel III, have caused liquidity deterioration in the U.S. fixed income market. Against the popular claim that post-crisis regulations hurt liquidity, this essay finds no evidence of liquidity deterioration during periods of regulatory intervention. Instead, liquidity seems to have improved in this period. The third essay, “Factions in Nondemocracies: Theory and Evidence from the Chinese Communist Party” (co-authored with Professor Patrick Francois and Professor Francesco Trebbi), investigates theoretically and empirically the factional arrangements and dynamics within the Chinese Communist Party (CCP), the governing political party of the People's Republic of China. This essay documents a set of new empirical findings showing how factional politics affects the promotion of individual politicians within the CCP hierarchy. This essay proposes a theoretical model to rationalize these findings and conduct a set of counterfactual analyses of possible institutional changes within the CCP.
Two-photon spectroscopy of dipole-forbidden transitions. II. Calculation of two-photon cross sections by the CNDO-CI method
Creators: name: Hohlneicher, Georg
name: Dick, Bernhard
Publisher: name: Universität Regensburg
Year: 1979
Subjects: subject: Configuration interaction (with CNDO, in calcn. of two-photon dipole-forbidden transition); Molecular orbital (CNDO, in calcn. of two-photon spectra of dipole-forbidden transitions); Energy level transition (dipole-forbidden, calcn. of 2-photon, by CNDO-CI method); Spectrometry (two-photon, of dipole-forbidden transitions); two photon dipole forbidden transition
subject: 540 Chemie
subject: 33.20.Fb

description: The applicability of a CNDO/S scheme including double excited configurations for the calcn. of excitation energies of larger unsatd. mols. was studied. The same scheme is very useful for the prediction of 2-photon transition probabilities. If the proper expansion is used, the results converge quite well with increasing no. of intermediate states. The inclusion of double excited configurations is not only necessary to obtain better energies for dipole-forbidden transitions to \"covalent\" excited states but also to obtain the correct order of magnitude for 2-photon cross sections.
description: CAN 91:114576 73-1 Spectra by Absorption, Emission, Reflection, or Magnetic Resonance, and Other Optical Properties
X-ray photoemission study of satellite structure accompanying core ionization from coordinated nitrogen
Creators: name: Freund, Hans Joachim
name: Pulm, Harald
name: Dick, Bernhard
name: Lange, Ralph
Publisher: name: Universität Regensburg
Year: 1983
Subjects: subject: Electron configuration; Energy level excitation (of manganese dicarbonyl cyclopentadienyl dinitrogen complex); Ionization potential and energy (inner-shell, of nitrogen in free state and coordinated to manganese with dicarbonyl and cyclopentadienyl); core ionization nitrogen manganese coordinated; carbonyl cyclopentadienyl manganese nitrogen ionization
subject: 540 Chemie

description: The core ionization was compared of free and adsorbed N2 to N2 bound head-on (with a linear N2-metal bond) to a metal atom in a mononuclear organometallic compd., namely h5-dicarbonyl-cyclopentadienyl-dinitrogen-manganese(I). A comprehensive assignment is given for the full spectrum including main lines and satellite lines on the basis of numerical calcns. The conclusions were compared to those earlier derived for CO complexes and adsorbates. The importance of doubly excited configurations for a correct description of the satellite excitation energies is discussed.
description: CAN 99:218951 65-5 General Physical Chemistry 38600-58-7 Role: PRP (Properties) (core ionization of nitrogen mol. in); 7727-37-9 Role: PRP (Properties) (core ionization of, effect of manganese coordination on)
Field correlations and the ultimate regime of turbulent convection
Creators: name: Verma, Mahendra K.
name: Mishra, Pankaj K.
name: Pandey, Ambrish
name: Paul, Supriyo
Publisher: name: arXiv
Year: 2011
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Using direct numerical simulations of Rayleigh-Bénard convection (RBC) under free-slip boundary condition, we show that the normalized correlation function between the vertical velocity field and the temperature field, as well as the normalized viscous dissipation rate, scales as $Ra^{-0.22}$ for moderately large Rayleigh number $Ra$. This scaling accounts for the Nusselt number ($Nu$) exponent to be around 0.3 observed in experiments. Numerical simulations also reveal that the above normalized correlation functions are constants for the convection simulation under periodic boundary conditions.
description: 4 pages, 4 figures
Resonant Tunneling in Superfluid Helium-3
Creators: name: Tye, S. -H. Henry
name: Wohns, Daniel
Publisher: name: arXiv
Year: 2011
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The $A$ phase and the $B$ phase of superfluid He-3 are well studied, both theoretically and experimentally. The decay time scale of the $A$ phase to the $B$ phase of a typical supercooled superfluid $^3$He-A sample is calculated to be $10^{20,000}$ years or longer, yet the actual first-order phase transition of supercooled $A$ phase happens very rapidly (in seconds to minutes) in the laboratory. We propose that this very fast phase transition puzzle can be explained by the resonant tunneling effect in field theory, which generically happens since the degeneracies of both the $A$ and the $B$ phases are lifted by many small interaction effects. This explanation predicts the existence of peaks in the $A \to B$ transition rate for certain values of the temperature, pressure, and magnetic field. Away from these peaks, the transition simply will not happen.
description: 28 pages, 12 figures, matches published version, improved discussion of alternative explanations, references added
Caustic singularity in Ho$\check {\textbf{r}}$ava-Lifshitz gravity
Creators: name: Setare, M. R.
name: Momeni, D.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this note we searched for a family of solutions with Caustic singularity in non relativistic-renormalizable Ho$\check {\textbf{r}}$ava-Lifshitz (HL)theory without the general covariant. We show that in infrared (IR) limit and with a deviation from $λ=1$ we have no caustic singularity. Also in ultraviolet (UV) regime and for Ricci flat 3-dimensional (3d) spaces and codimension 1 and for $λ\neq1$ the non linear terms should help bouncing this kind of most dangerous would be caustics. But if 3d curvature does not vanish, higher curvature terms do help caustics even in codimension one. Thus the arguments in [JCAP 0909:005,2009] are satisfied correctly.
description: Accepted for publication in International Journal of Theoretical Physics
Cuticular profiles and mating preference in a slave-making ant
Creators: name: Beibl, J.
name: D’Ettorre, P.
name: Heinze, J.
Publisher: name: Universität Regensburg
Year: 2007
Subjects: subject: Chalepoxenus muellerianus; social parasitism; mating success; cuticular hydrocarbons; Formicoxenini
subject: 570 Biowissenschaften, Biologie
subject: 590 Tiere (Zoologie)

description: The remarkable ability of slave-making ants to integrate chemically in the colonies of their host species makes them useful model systems for investigating the role of cuticular hydrocarbons in chemical recognition. The purpose of our study was to examine the influence of the rearing host species on the cuticular hydrocarbon profile and on the mating behaviour of sexuals of the slave-making ant Chalepoxenus muellerianus. Sexuals from a population parasitizing exclusively the host species Temnothorax unifasciatus were reared in the laboratory either with their natural host or another potential host species, Temnothorax recedens. C. muellerianus males reared with T. unifasciatus investigated and mounted female sexuals reared with the same host significantly more often than female sexuals reared with T. recedens. Similarly, C. muellerianus males reared with T. unifasciatus discriminated against female sexuals from natural T. recedens colonies. Males experimentally or naturally reared with T. recedens did not clearly discriminate between female sexuals reared by the two host species and only rarely engaged in mating attempts with either type of female sexuals. Chemical analyses showed that host species affect the chemical profile of C. muellerianus sexuals and vice versa. Our findings indicate that cuticular hydrocarbons might be important in the mating success of this ant species.
Molecular characterization of the black yeast Hortaea werneckii in saline environments
Creators: name: Formby, Sean Philip
Publisher: name: University of British Columbia
Year: 2017

description: As of 2007, over 30 million hectares are affected by salinization resulting in poor crop yield and a reduction of food production. Reversing salinization of soil is an expensive and long term process. The bioengineering of plants to better cope with salinization of the soil is an ongoing research effort. Hortaea werneckii is an extremely halotolerant (salt tolerant) black yeast and can grow in the absence of salt or in almost saturating conditions (5M NaCl). Its natural ecological niche is the solar salterns of Slovenia which have range of environmental extremities such as the salt concentration, low oxygen, and high UV intensity. Recently it was discovered that this yeast has had recent genome duplication and 90% of the proteins exist in duplicate. The whole genome duplication and the extreme NaCl tolerance of H. werneckii provide an interesting model to investigate molecular mechanisms involved in salt stress. In this study, H. werneckii’s genome assembly is improved (increased contiguity) and used for subsequent molecular experiments such as MNase-seq and RNA-seq. These experiments were used to examine differences of gene expression and the corresponding chromatin architecture across a range of saline conditions to determine important molecular mechanism in salt tolerance. H. werneckii increases respiration in response to salt stress exemplified by the upregulation of mitochondrial associated genes and antioxidant defense genes. Additionally, H. werneckii genes encoding zinc transporters and genes involved in glycerol assimilation were increased in response to high salt. The chromatin landscape of some of these genes differs from other yeasts such as S. cerevisiae. Using next generation sequencing and third generation sequencing a more complete picture of H. werneckii’s mechanisms of salt tolerance has been obtained while also creating an extensive data-base for future research.
The primary photochemical reaction step of unsubstituted indolino-spiropyrans
Creators: name: Ernsting, N. P.
name: Dick, Bernhard
name: Arthen-Engeland, T.
Publisher: name: Universität Regensburg
Year: 1990
Subjects: subject: Photochromism (of indolino-spiropyrans, primary photochem. reactions in); Ultraviolet and visible spectra (of transient products, in primary processes of photolysis of indolino-spiropyrans); Photolysis (laser-induced, of unsubstituted indolino-spiropyrans, primary processes in); photolysis indolino spiropyran merocyanine formation; photochromism indolino spiropyran
subject: 540 Chemie

description: The photochem. ring-opening of unsubstituted indolino-spiropyrans to the corresponding merocyanines in pentane, was followed by transient absorption spectroscopy. The temporal resoln. was better than 0.4 ps. During the pump pulse, an ultrafast unstructured absorption covered the entire measurement range 380-680 nm. From it emerged the structured absorption spectrum of a 1st merocyanine isomer, with typical time consts. in the range 0.9-1.4 ps. The transient merocyanine spectra are compared to the spectra which are obtained when the spiropyrans are irradiated at low temp. in argon. In conjunction with semiempirical calcns., the 1st merocyanine isomer is assigned a trans-trans-cis structure.
description: CAN 113:181179 74-1 Radiation Chemistry, Photochemistry, and Photographic and Other Reprographic Processes 2016-67-3; 51870-76-9 Role: USES (Uses) (MNDO calcns. of, in ground state, primary photochem. processes of photochromic indolino-spiropyrans in relation to); 1485-92-3; 1592-43-4 Role: RCT (Reactant), RACT (Reactant or reagent) (photochem. reactions of, primary processes in)
Double-resonant second harmonic generation from surface coverages of Nile Blue A
Creators: name: Marowsky, Gerd
name: Gierulski, Alfred
name: Dick, Bernhard
Publisher: name: Universität Regensburg
Year: 1985
Subjects: subject: Adsorbed substances (dyes, double-resonant second harmonic generation by); Dyes (laser double-resonant second harmonic generation from adsorbed films of); Laser radiation (second harmonic generation of, double-resonant, from adsorbed dyes); laser second harmonic dye film; Nile Blue A second harmonic Rhodamine 6G second harmonic
subject: 540 Chemie

description: Second harmonic emission from a dye covered quartz surface was obsd. in total internal reflection. Coverages with the dye Nile Blue A yielded an increase in 2nd harmonic output by several orders of magnitude as compared to coverages with Rhodamine 6G. In the latter case, only the harmonic light is at resonance with the S0-S2 transition of the adsorbed dye mols., whereas for Nile Blue A both, the fundamental and the harmonic frequency, are at resonances with the resp. singlet transitions.
description: CAN 102:122760 73-10 Optical, Electron, and Mass Spectroscopy and Other Related Properties 989-38-8P; 2381-85-3P Role: PREP (Preparation) (laser double-resonant second harmonic generation from adsorbed films of)
Phegea51-2. Ectoedemia heringella & Stigmella suberivora (Lepidoptera: Nepticulidae), twee mineerders van Quercus ilex (Fagaceae), nieuw voor de Belgische fauna
Creators: name: Wullaert, Steve
name: Recour, Ruben
name: J. van Nieukerken, Erik
Publisher: name: figshare
Year: 2023
Subjects: Animal behaviour

description: Ectoedemia heringella (Mariani, 1939) and Stigmella suberivora (Stainton, 1869) (Lepidoptera: Nepticulidae) were recorded as new for Belgium from the Belgian coast. Six leafmines, some of which still contained living caterpillars of Ectoedemia heringella were collected on 27.xii.2018 in Oostduinkerke (West Flanders). On 25.x.2020, 27 abandoned mines and one dead larva of Stigmella suberivora were found in Knokke-Heist (West Flanders). The identification was confirmed by DNA barcodes. The biology and distribution of both species are discussed.
New experimental information from two-photon spectroscopy and comparison with theory
Creators: name: Hohlneicher, Georg
name: Dick, Bernhard
Publisher: name: Universität Regensburg
Year: 1983
Subjects: subject: Photon (processes of two, exptl. and theor.); Ultraviolet and visible spectrometry (two-photon, exptl. and theor.); two photon spectroscopy expt theory
subject: 540 Chemie

description: From a specially designed expt., allowing the measurement of 2-photon absorption spectra and 2-photon polarization parameters over a wide spectral range, new exptl. information is obtained on the location of electronically excited states usually not seen in the UV spectrum. By comparison with theory it is shown that in most of the examples investigated up to now the ordering of the low lying excited states is different from what is usually expected. Correlation strongly influences the ordering esp. in those systems which consist of loosely coupled p-systems.
description: CAN 98:169764 73-4 Optical, Electron, and Mass Spectroscopy and Other Related Properties 85-01-8; 91-20-3; 92-52-4; 120-12-7 Role: PRP (Properties) (two-photon spectroscopy of, exptl. and theor.)
title: Dataset to: Miller et al. (2023): "New Decapoda (Brachyura) from the Paleocene Kambühel Formation, Austria"
Creators: name: Miller, Jennifer
name: Schweitzer, Carrie
name: Feldmann, Rodney
Publisher: name: Naturhistorisches Museum Wien (NHMW)
Year: 2023

description:
New brachyuran species from the ?Selandian
to Thanetian units of the Kambühel Formation include Dromiopsis bullamelga,
Dromiopsis aedicula, and Braggicarpilius wanzenboecki. Four previously
named brachyuran species are also present. Carpiliidae is both the only extant
family present and the only family represented in the Kambühel Formation to
originate after the end-Cretaceous. Half of the genera present in the Kambühel
Formation (Dromiopsis, Caloxanthus, and Titanocarcinus) survived
the end-Cretaceous mass extinction event, and all of the surviving genera
originated during the Cretaceous. All of the identified species originated in
the Paleocene. 87.5% of species and 95% of individual specimens found by two of
us (RMF, CES) in one day of collecting at Fakse Quarry are podotrematous, while
80% of species and 46% of individual specimens found in the Kambühel Formation
are podotrematous. The specimens from the Kambühel Formation suggest that by
late Paleocene time, biomass of the heterotremes surpassed that of the
podotremes.
Magnetotransport properties of a magnetically modulated two-dimensional electron gas with the spin-orbit interaction
Creators: name: Islam, SK Firoz
name: Ghosh, Tarun Kanti
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the electrical transport properties of a two-dimensional electron gas with the Rashba spin-orbit interaction in presence of a constant perpendicular magnetic field $(B_0 \hat z)$ which is weakly modulated by ${\bf B_1} = B_1 \cos (q x) \hat z$, where $B_1 \ll B_0 $ and $q = 2 π/a $ with $a$ is the modulation period. We obtain the analytical expressions of the diffusive conductivities for spin-up and spin-down electrons. The conductivities for spin-up and spin-down electrons oscillate with different frequencies and produce beating patterns in the amplitude of the Weiss and Shubnikov-de Haas oscillations. We show that the Rashba strength can be determined by analyzing the beating pattern in the Weiss oscillation. We find a simple equation which determines the Rashba spin-orbit interaction strength if the number of Weiss oscillations between any two successive nodes is known from the experiment. We compare our results with the electrically modulated 2DEG with the Rashba interaction. For completeness, we also study the beating pattern formation in the collisional and the Hall conductivities.
description: 11 pages, 5 figures, re-written with new results
title: Dataset to: Yost et al. (2023): "New Decapoda (Anomura) from the Paleocene Kambühel Formation, Austria"
Creators: name: Yost, Samantha
name: Feldmann, Rodney
name: Schweitzer, Carrie
Publisher: name: Naturhistorisches Museum Wien (NHMW)
Year: 2023

description:
New decapod crustaceans from ?Selandian to Thanetian strata of the Kambühel Formation, Austria, include the paguroid Squamipelta insecta new genus and species, and two new galatheoid species, Protomunida kambuehelensis and Annieporcellana paleocenica. The range of Annieporcellana is extended across the Cretaceous-Paleogene boundary. Selandian and Thanetian decapod occurrences are rare; thus, this report adds to the known decapod diversity in the recovery after the end-Cretaceous events.
Neutral Fermion Excitations in the Moore-Read state at ν=5/2
Creators: name: Moller, Gunnar
name: Wojs, Arkadiusz
name: Cooper, Nigel R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present evidence supporting the weakly paired Moore-Read phase in the half-filled second Landau level, focusing on some of the qualitative features of its excitations. Based on numerical studies, we show that systems with odd particle number at the flux $N_ϕ=2N-3$ can be interpreted as a neutral fermion mode of one unpaired fermion, which is gapped. The mode is found to have two distinct minima, providing a signature that could be observed by photoluminescence. In the presence of two quasiparticles the same neutral fermion excitation is shown to be gapless, confirming expectations for non-Abelian statistics of the Ising model with degenerate fusion channels 1 and $ψ$.
description: 4 pages, 4 figures; v2: final published version
Experimental evidence on the Altshuler-Aronov-Spivak interference of the topological surface states in the exfoliated Bi2Te3 nanoflakes
Creators: name: Qin, Yuyuan
name: Li, Zhaoguo
name: Song, Fengqi
name: Wang, Qianghua
name: Ding, Wangfeng
name: Wang, Xuefeng
name: Ding, Haifeng
name: Wang, Baigeng
name: Van Haesondonck, Chris
name: Wan, Jianguo
name: Han, Min
name: Zhang, Y. H.
name: Wang, Guanghou
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Here we demonstrate the Altshuler-Aronov-Spivak (AAS) interference of the topological surface states on the exfoliated Bi2Te3 microflakes by a flux period of h/2e in their magnetoresistance oscillations and its weak field character. Both the osillations with the period of h/e and h/2e are observed. The h/2e-period AAS oscillation gradually dominates with increasing the sample widths and the temperatures. This reveals the transition of the Dirac Fermions' transport to the diffusive regime.
description: version 3;Applied Physics Letters in press
Rank-Refining Seed Selection Methods for Budget Constrained Influence Maximisation in Multilayer Networks under Linear Threshold Model
Creators: name: Czuba, Michał
name: Bródka, Piotr
Publisher: name: arXiv
Year: 2024
Subjects: subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The problem of selecting an optimal seed set to maximise influence in networks has been a subject of intense research in recent years. However, despite numerous works addressing this area, it remains a topic that requires further elaboration. Most often, it is considered within the scope of classically defined graphs with a spreading model in the form of Independent Cascades. In this work, we focus on the problem of budget-constrained influence maximisation in multilayer networks using a Linear Threshold Model. Both the graph model and the spreading process we employ are less prevalent in the literature, even though their application allows for a more precise representation of the opinion dynamics in social networks. This paper aims to answer which of the sixteen evaluated seed selection methods is the most effective and how similar they are. Additionally, we focus our analysis on the impact of spreading model parameters, network characteristics, a budget, and the seed selection methods on the diffusion effectiveness in multilayer networks. Our contribution also includes extending several centrality measures and heuristics to the case of such graphs. The results indicate that all the factors mentioned above collectively contribute to the effectiveness of influence maximisation. Moreover, there is no seed selection method which always provides the best results. However, the seeds chosen with VoteRank-based methods (especially with the $v-rnk-m$ variant we propose) usually provide the most extensive diffusion.
description: This version of the article has been accepted for publication, after peer review, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1007/s13278-025-01454-7
POPAR: Patch Order Prediction and Appearance Recovery for Self-supervised Medical Image Analysis
Creators: name: Pang Jiaxuan
name: Haghighi Fatemeh
name: DongAo, Ma
name: Ul, Islam Nahid
name: Hosseinzadeh Taher Mohammad Reza
name: Gotway Michael, B.
name: Jianming, Liang
Publisher: name: Zenodo
Year: 2022
Subjects: Vision Transformer
Self-supervised Learning
Medical Image Analysis
Transfer Learning

description: Pre-trained Models for POPAR: Patch Order Prediction and Appearance Recovery for Self-supervised Medical Image Analysis
A matrix isolation study of the fluorescence of anthracene and anthracene-ammonia adducts in solid argon
Creators: name: Fraenkel, R.
name: Samuni, U.
name: Haas, Yehuda
name: Dick, Bernhard
Publisher: name: Universität Regensburg
Year: 1993
Subjects: subject: Fluorescence (of anthracene and anthracene-ammonia adducts in solid argon, matrix isolation); matrix isolation fluorescence anthracene solid argon; anthracene ammonia adduct fluorescence solid argon
subject: 540 Chemie

description: The UV absorption and emission spectra of anthracene in an Ar matrix were measured. Three major spectroscopic systems were obsd., assignable to anthracene mols. occupying distinct sites. The origins of these systems were red shifted with respect to the isolated mol. by 535, 691 and 722 cm-1. At 17 K, all lines were well resolved, with about 8 cm-1 full width at half max. Addn. of a small amt. of NH3 leads to the observation of 3 new band systems, red shifted with respect to the previously mentioned ones. These observations are discussed in relation to recent studies of anthracene-Ar and anthracene-NH3 clusters in supersonic jets.
description: CAN 118:179233 73-5 Optical, Electron, and Mass Spectroscopy and Other Related Properties 7664-41-7 (Ammonia) Role: PRP (Properties) (anthracene fluorescence in solid argon contg.); 120-12-7 (Anthracene); 146963-93-1 Role: PRP (Properties) (fluorescence of, in solid argon, matrix isolation study of); 7440-37-1 (Argon) Role: USES (Uses) (solid, matrix isolation study of fluorescence of anthracene and anthracene-ammonia adducts in)
Corticosteroid-Binding Globulin (CBG) : deficiencies and the role of CBG in disease processes
Creators: name: Hill, Lesley Ann
Publisher: name: University of British Columbia
Year: 2017

description: Corticosteroid-binding globulin (CBG, SERPINA6) is a serine protease inhibitor family member produced by hepatocytes. Plasma CBG transports biologically active glucocorticoids, determines their bioavailability to target tissues and acts as an acute-phase negative protein with a role in the delivery of glucocorticoids to sites of inflammation. A few CBG-deficient individuals have been identified, yet the clinical significance of this remain unclear. In this thesis, I investigated 1) the biochemical consequences of naturally occurring single nucleotide polymorphisms in the SERPINA6 gene, 2) the role of human CBG during infections and acute inflammation and 3) CBG as a biomarker of inflammation in rats. A comprehensive analysis of functionally relevant naturally occurring SERPINA6 SNP revealed 11 CBG variants with abnormal production and/or function, diminished responses to proteolytic cleavage of the CBG reactive center loop (RCL) or altered recognition by monoclonal antibodies. In a genome-wide association study, plasma cortisol levels were most closely associated with SERPINA6 SNPs and plasma CBG-cortisol binding capacity. These studies indicate that human CBG variants need to be considered in clinical evaluations of patients with abnormal cortisol levels. In addition, I obtained evidence that discrepancies in CBG values obtained by the 9G12 ELISA compared to CBG binding capacity and 12G2 ELISA are likely due to differential N-glycosylation rather than proteolysis, as recently reported. In relation to human inflammation, the bacterial protease Pseudomonas aeruginosa elastase was shown to cleave the RCL and α-2-macroglobulin specifically inhibited this. ICU patients with a variety of illnesses had significantly reduced plasma CBG levels, with the lowest levels in individuals with severe inflammation. Similar results were observed in a rodent model of inflammation, where significant reductions in plasma CBG levels were associated with CBG proteolysis and the down-regulation of hepatic Serpina6 expression. In addition, lower baseline plasma CBG levels in Harlan Sprague Dawley rats were linked with an increased susceptibility to inflammation. Together, the human and rodent studies highlight the importance of CBG in inflammatory reactions and suggest that CBG is a useful biomarker of inflammation onset and severity.
Stacking-Dependent Band Gap and Quantum Transport in Trilayer Graphene
Creators: name: Bao, W.
name: Jing, L.
name: Lee, Y.
name: Velasco, J.
name: Kratz, P.
name: Tran, D.
name: Standley, B.
name: Aykol, M.
name: Cronin, S. B.
name: Smirnov, D.
name: Koshino, M.
name: McCann, E.
name: Bockrath, M.
name: Lau, C. N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In a multi-layer electronic system, stacking order provides a rarely-explored degree of freedom for tuning its electronic properties. Here we demonstrate the dramatically different transport properties in trilayer graphene (TLG) with different stacking orders. At the Dirac point, ABA-stacked TLG remains metallic while the ABC counterpart becomes insulating. The latter exhibits a gap-like dI/dV characteristics at low temperature and thermally activated conduction at higher temperatures, indicating an intrinsic gap ~6 meV. In magnetic fields, in addition to an insulating state at filling factor ν=0, ABC TLG exhibits quantum Hall plateaus at ν=-30, \pm 18, \pm 9, each of which splits into 3 branches at higher fields. Such splittings are signatures of the Lifshitz transition induced by trigonal warping, found only in ABC TLG, and in semi-quantitative agreement with theory. Our results underscore the rich interaction-induced phenomena in trilayer graphene with different stacking orders, and its potential towards electronic applications.
description: minor revision; published version
Calculation of transition metal compounds using an extension of the CNDO formalism. II. Metal to metal bonding in binuclear transition metal compounds
Creators: name: Freund, Hans Joachim
name: Dick, Bernhard
name: Hohlneicher, Georg
Publisher: name: Universität Regensburg
Year: 1980
Subjects: subject: Transition metal carbonyls, Role: PRP (Properties) (MO of, bonding in relation to); Energy level (of transition metal carboxylates and carbonylbinuclear complexes); Carboxylic acids, Role: PRP (Properties) (transition metal complexes, MO calcns. of), Molecular orbital (CNDO, of transition metal carbonyls and carboxylates), Bond (transition metal-transition metal, in binuclear complexes), transition metal binuclear complex CNDO carbonyl transition metal complex CNDO carboxylate transition metal complex CNDO bond transition metal complex
subject: 540 Chemie

description: A recently developed extension of the CNDO-method (Freund and Hohlneicher, 1979) is used to study the electronic structure of a no. of binuclear transition metal carbonyls and carboxylates with 4-fold or quasi-4-fold symmetry. The results are compared to those available from nonempirical calcns. Special attention is paid to the nature of the metal-metal bond. Connections with qual. MO-considerations allow a fairly general discussion of metal-metal bonding in binuclear transition metal complexes with basic 4-fold symmetry. A few, up to now unknown, but possibly existing, complexes are considered.
description: CAN 94:8019 65-4 General Physical Chemistry 10170-69-1; 10210-68-1; 14404-41-2; 45264-01-5; 60428-77-5; 63448-51-1; 75952-29-3; 75952-30-6; 75952-31-7 Role: PRP (Properties) (MO calcns. on, bonding in relation to)
Excited-state intramolecular proton transfer in jet-cooled 3-hydroxyflavone. Deuteration studies, vibronic double-resonance experiments, and semiempirical (AM1) calculations of potential-energy surfaces
Creators: name: Muehlpfordt, A.
name: Bultmann, T.
name: Ernsting, N. P.
name: Dick, Bernhard
Publisher: name: Universität Regensburg
Year: 1994
Subjects: subject: Tautomerism and Tautomers (excited-state, in hydroxyflavone); Potential energy surface and hypersurface (of ground and excited state of hydroxyflavone); Isotope effect (on excited-state intramol. proton transfer in jet-cooled, by deuterium); Potential barrier (to low-frequency hydroxyl hydrogen motion, in hydroxyflavone); Molecular orbital (AM1, potential surface for ground and excited hydroxyflavone calcd. by); Fluorescence (excitation, of hydroxyflavone); Protonation and Proton transfer reaction (intramol., excited-state, of hydroxyflavone); Potential energy and function (vibrational, zero-point, of hydroxyflavone); Energy level transition (vibronic, of hydroxyflavone); hydroxyflavone excited state intramol proton transfer; fluorescence excitation hydroxyflavone; potential surface intramol proton transfer; isotope effect intramol proton transfer; AM1 MO limited CI hydroxyflavone
subject: 540 Chemie

description: 3-Hydroxyflavone (3-HF) and 3-deuteroxyflavone (3-DF) were examd. by fluorescence excitation spectroscopy in a supersonic free jet. Compared to 3-HF, vibronic bands of 3-DF are significantly narrower. Substitution of H by D also appears to split vibronic bands into at least three bands leading to a congested spectrum. Fluorescence-dip double-resonance spectroscopy revealed that the complicated spectrum of 3-DF consists of at least three independent partial spectra which are superimposed. The vibrational pattern of every partial spectrum is identical to that of 3-HF, but partial spectra differ in their spectral position. Semiempirical calcns. (MNDO/AM1 with limited CI) were used to generate ground- and singlet excited-state potential energy surfaces as a function of Ph and hydroxyl torsional angles. The deuteration effects suggest the existence of potential energy barriers to low-frequency hydroxyl hydrogen motion, with barrier height on the order of the vibrational zero-point energy.
description: CAN 120:243934 22-9 Physical Organic Chemistry 577-85-5 (3-Hydroxyflavone) Role: PRP (Properties) (excited-state intramol. proton transfer in jet-cooled); 7782-39-0 (Deuterium) Role: PRP (Properties) (isotope effect of,on excited-state intramol. proton transfer in hydroxyflavone); 12408-02-5 Role: PRP (Properties) (protonation and Proton transfer reaction, intramol., excited-state, of hydroxyflavone)
Search for plant biomagnetism with a sensitive atomic magnetometer
Creators: name: Corsini, Eric
name: Acosta, Victor
name: Baddour, Nicolas
name: Higbie, James
name: Lester, Brian
name: Licht, Paul
name: Patton, Brian
name: Prouty, Mark
name: Budker, Dmitry
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Biological Physics (physics.bio-ph)
subject: Popular Physics (physics.pop-ph)
subject: FOS: Physical sciences

description: We report what we believe is the first experimental limit placed on plant biomagnetism. Measurements with a sensitive atomic magnetometer were performed on the Titan arum (Amorphophallus titanum) inflorescence, known for its fast bio-chemical processes while blooming. We find that the surface magnetic field from these processes, projected along the Earth's magnetic field, and measured at the surface of the plant, is less then ~0.6uG.
description: 5 pages, 5 figures, to be published - modified one sentence in abstract + reformatted fig
A model for space and time-like proton (neutron) form factors
Creators: name: Kuraev, E. A.
name: Dbeyssi, A.
name: Tomasi-Gustafsson, E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A model is suggested to describe the known experimental behavior of nucleon form factors both in space and time-like regions. It implies quarks to be colorless in the region of high intensity chomo-magnetic gluon field inside the nucleon.
description: 6 pages, 3 figures