cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Dynamical equivalence between Kuramoto models with first- and higher-order coupling
Creators: name: Delabays, Robin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: The Kuramoto model with high-order coupling has recently attracted some attention in the field of coupled oscillators in order, for instance, to describe clustering phenomena in sets of coupled agents. Instead of considering interactions given directly by the sine of oscillators' angle differences, the interaction is given by the sum of sines of integer multiples of these angle differences. This can be interpreted as a Fourier decomposition of a general $2π$-periodic interaction function. We show that in the case where only one multiple of the angle differences is considered, which we refer to as the "Kuramoto model with simple $q$th-order coupling," the system is dynamically equivalent to the original Kuramoto model. In other words, any property of the Kuramoto model with simple higher-order coupling can be recovered from the standard Kuramoto model.
description: 6 pages, 3 figures
Close frequency pairs in Delta Scuti stars
Creators: name: Breger, M.
name: Bischof, K. M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The majority of the well-studied Delta Scuti stars show frequency pairs in the power spectra with frequency separations less than 0.06 c/d(0.7 microHz) as well as amplitude variability. We examine the interpretation in terms of separate excited stellar pulsation modes,single modes with variable amplitudes, and observational problems. The variable-phase technique, which examines the phase jumps near the times of minimum amplitude of an assumed single frequency, is applied to the extensive data of the star BI CMi, which shows some of the most extreme behavior. The following results are found for the 5 features in the power spectrum which could be explained as single modes with variable amplitudes or as double modes: for three features it can be shown that these are indeed pairs of separate pulsation modes beating with each other: at times of minimum amplitude the phase jumps are observed and both the observed amplitude and phase variations can be predicted correctly by assuming two separate modes of nearly equal frequencies. Artifacts caused by observational error,insufficient frequency resolution or variable amplitudes can be ruled out. A fourth pair has a probable origin in two excited modes, while a 5th case is inconclusive due to long time scales of variability and small amplitudes.The existence of close frequencies need to be taken into account in planning the lengths of earth-based as well as space campaigns so that sufficient frequency resolution is obtained. Possible reasons for the existence of close frequencies in Delta Scuti stars are considered.They include the dense frequency spacing caused by the presence of mixed modes, rotational splitting as well as near-coincidence of the frequencies of modes with different l values (the so-called Small Spacing).
description: 9 Pages, 5 Figures, Accepted by Astronomy and Astrophysics; alternative Download from ftp://ftp.deltascuti.net/pub/CloseFrequencies.pdf
Numerical simulations of mass outflows driven from accretion disks by radiation and magnetic forces
Creators: name: Proga, D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the two-dimensional, time-dependent MHD of radiation-driven winds from luminous accretion disks initially threaded by a purely axial magnetic field. The radiation force is mediated primarily by spectral lines. We use ideal MHD to compute the evolution of Keplerian disks, varying the magnetic field strengths and the luminosity of the disk, the central accreting object or both. We find that the magnetic fields very quickly start deviating from purely axial due to the magnetorotational instability. This leads to fast growth of the toroidal magnetic field. As a result the toroidal field dominates over the poloidal field above the disk and the gradient of the former drives a slow and dense disk outflow, which conserves specific angular momentum. Depending on the strength of the magnetic field relative to the system luminosity the disk wind can be radiation- or MHD driven. The pure radiation-driven wind consists of a dense, slow outflow that is bounded on the polar side by a high-velocity stream. The mass-loss rate is mostly due to the fast stream. As the magnetic field strength increases first the slow part of the flow is affected, namely it becomes denser and slightly faster and begins to dominate the mass-loss rate. In very strong magnetic field or pure MHD cases, the wind consists of only a dense, slow outflow without the presence of the distinctive fast stream so typical to pure radiation-driven winds. Our simulations indicate that winds launched by the magnetic fields are likely to remain dominated by the fields downstream because of their relatively high densities.
description: 30 pages, 4 figure (fig. 1 and fig. 2 in color), to appear in ApJ, "see also http://rocinante.colorado.edu/~proga/"
Atom-field dynamics in curved spacetime
Creators: name: Bukhari, Syed Masood A. S.
name: Wang, Li-Gang
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Some aspects of atom-field interactions in curved spacetime are reviewed. Of great interest are quantum radiative and entanglement processes arising out of Rindler and black hole spacetimes, which involve the role of Hawking-Unruh and dynamical Casimir effects. Most of the discussion surrounds the radiative part of interactions. For this, we specifically reassess the conventional understandings of atomic radiative transitions and energy level shifts in curved spacetime. We also briefly outline the status quo of entanglement dynamics study in curved spacetime, and highlight literature related to some novel insights, like entanglement harvesting. On one hand, the study of the role played by spacetime curvature in quantum radiative and informational phenomena has implications for fundamental physics, notably the gravity-quantum interface. In particular, one examines the viability of the Equivalence Principle, which is at the heart of Einstein's general theory of relativity. On the other hand, it can be instructive for manipulating quantum information and light propagation in arbitrary geometries. Some issues related to nonthermal effects of acceleration are also discussed.
description: 34 pages, 5 figures
Dark sector evolution in Horndeski models
Creators: name: Pace, Francesco
name: Battye, Richard A.
name: Bolliet, Boris
name: Trinh, Damien
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We use the Equation of State (EoS) approach to study the evolution of the dark sector in Horndeski models, the most general scalar-tensor theories with second order equations of motion. By including the effects of the dark sector into our code EoS\_class, we demonstrate the numerical stability of the formalism and excellent agreement with results from other publicly available codes for a range of parameters describing the evolution of the function characterising the perturbations for Horndeski models, $α_{\rm x}$, with ${\rm x}=\{{\rm K}, {\rm B}, {\rm M}, {\rm T}\}$. After demonstrating that on sub-horizon scales ($k\gtrsim 10^{-3}~{\rm Mpc}^{-1}$ at $z=0$) velocity perturbations in both the matter and the dark sector are typically subdominant with respect to density perturbations in the equation of state for perturbations, we find an attractor solution for the dark sector gauge-invariant density perturbation $Δ_{\rm ds}$ by neglecting its time derivatives in the equation describing its time evolution, as commonly done in the well-known quasi-static approximation. Using this result, we provide simplified expressions for the equation-of-state functions: the dark sector entropy perturbations $w_{\rm ds}Γ_{\rm ds}$ and anisotropic stress $w_{\rm ds}Π_{\rm ds}$. From this we derive a growth factor-like equation for both matter and dark sector and are able to capture the relevant physics for several observables with great accuracy. We finally present new analytical expressions for the well-known modified gravity phenomenological functions $μ$, $η$ and $Σ$ for a generic Horndeski model as functions of $α_{\rm x}$. We show that on small scales they reproduce expressions presented in previous works, but on large scales, we find differences with respect to other works.
description: 43 pages, 13 figures. It matches the accepted version on JCAP
A general representation scheme for crystalline solids based on Voronoi-tessellation real feature values and atomic property data
Creators: name: Jalem, Randy
name: Nakayama, Masanobu
name: Noda, Yusuke
name: Le, Tam
name: Takeuchi, Ichiro
name: Tateyama, Yoshitaka
name: Yamazaki, Hisatsugu
Publisher: name: Taylor & Francis
Year: 2018
Subjects: Space Science
Pharmacology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Computational Biology

description: Increasing attention has been paid to materials informatics approaches that promise efficient and fast discovery and optimization of functional inorganic materials. Technical breakthrough is urgently requested to advance this field and efforts have been made in the development of materials descriptors to encode or represent characteristics of crystalline solids, such as chemical composition, crystal structure, electronic structure, etc. We propose a general representation scheme for crystalline solids that lifts restrictions on atom ordering, cell periodicity, and system cell size based on structural descriptors of directly binned Voronoi-tessellation real feature values and atomic/chemical descriptors based on the electronegativity of elements in the crystal. Comparison was made vs. radial distribution function (RDF) feature vector, in terms of predictive accuracy on density functional theory (DFT) material properties: cohesive energy (CE), density (d), electronic band gap (BG), and decomposition energy (Ed). It was confirmed that the proposed feature vector from Voronoi real value binning generally outperforms the RDF-based one for the prediction of aforementioned properties. Together with electronegativity-based features, Voronoi-tessellation features from a given crystal structure that are derived from second-nearest neighbor information contribute significantly towards prediction.
Improved local search for graph edit distance
Creators: name: Boria, Nicolas
name: Blumenthal, David B.
name: Bougleux, Sébastien
name: Brun, Luc
Publisher: name: arXiv
Year: 2019
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: 05C60, 68W25, 65D15, 68T20

description: The graph edit distance (GED) measures the dissimilarity between two graphs as the minimal cost of a sequence of elementary operations transforming one graph into another. This measure is fundamental in many areas such as structural pattern recognition or classification. However, exactly computing GED is NP-hard. Among different classes of heuristic algorithms that were proposed to compute approximate solutions, local search based algorithms provide the tightest upper bounds for GED. In this paper, we present K-REFINE and RANDPOST. K-REFINE generalizes and improves an existing local search algorithm and performs particularly well on small graphs. RANDPOST is a general warm start framework that stochastically generates promising initial solutions to be used by any local search based GED algorithm. It is particularly efficient on large graphs. An extensive empirical evaluation demonstrates that both K-REFINE and RANDPOST perform excellently in practice.
Tiphysa Mulsant 1850
Creators: name: Milléo, Julianne
name: de Almeida, Lúcia Massutti
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Tiphysa

description: Tiphysa Mulsant
(Figs. 1–16)
description: Published as part of Milléo, Julianne & de Almeida, Lúcia Massutti, 2003, Revision of the Genus Tiphysa Mulsant (Coleoptera, Coccinellidae, Hyperaspidinae), pp. 274-280 in The Coleopterists Bulletin 57 (3) on page 274, DOI: 10.1649/556, http://zenodo.org/record/10103651
GEST
Creators: name: Rhie, Sun Hong
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Galactic Exoplanet Survey Telescope (GEST) was proposed for a discovery mission to search for microlensing terrestrial planets toward the Galactic bulge and also Kuiper Belt Objects (KBOs) that are believed to hold vital information of the early history of the solar system. Earth mass planets require massive survey, angular resolution, temporal resolution, and continuous monitoring capability in a statistically stable observing condition. A 2m scale wide FOV space telescope with a large focal plane such as the GSET meets the needs. During the non-bulge time, the GEST will be ideal for high resolution mapping of the large scale structures which will include weak lensing by dark matter, quasar lensing and host galaxies, strong lensing by clusters, and a large volume of galaxies, which with selective follow-up measurements of whose redshifts and IR images will shed light on the dark stuff (matter, energy, essesnce, extra dimenstions, topological defects, ...). The data base can be mined for foreground objects such as high proper motion white dwarfs. We discuss microlensing, planets, and the necessity for a space imager.
description: Contribution to the Proceedings of the 20th Texas Symposium on Relativistic Astrophysics, Dec. 2000, Austin, Tx
Tiphysa plumbea Mulsant 1850
Creators: name: Milléo, Julianne
name: de Almeida, Lúcia Massutti
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Tiphysa
Tiphysa plumbea

description: Tiphysa plumbea Mulsant, 1850
(Figs. 17–19, 21)
 Tiphysa plumbea Mulsant, 1850:517–518; Crotch 1874:210; Korschefsky 1931:208; Blackwelder 1945:449; Gordon 1987:26; Fürsch 1989:20; 1990:17; Duverger 1989:146.
 Diagnosis. Pronotum, scutellum and elytron dark-green with metallic reflections and slight punctation (Fig. 21). Male with head black with one rectangular spot ferruginous on the frontoclypeal region and base of pronotum with yellow band. Thoracic venter black at middle, lateral margin and legs ferruginous. Abdomen of male ferruginous with seven visible segments. Length 5.08–5.25 mm; width 4.25–4.5 mm.
 Male. Median lobe assymetrical, shorter than parameres, with a truncate apex and membraneous projections; parameres wide at apex with setae long (Fig. 17). Sipho long, curved, with narrow projections (Fig. 18).
 Female. Head and base of pronotum without spots; six abdominal segments; spermatheca cylindrical, arched; infundibulum short, with three long arms (Fig. 19).
 Types. Holotype of T. plumbea, from Cayenne, French Guiana. Gordon (1987) indicated, with doubt, that the type material should be located at the Muséum d’Histoire Naturelle, Lyon, France, but we inquired, and it could not be located there.
 Specimens Examined. Without locality. Two specimens, Deyrollei (UMZC).
280
description: Published as part of Milléo, Julianne & de Almeida, Lúcia Massutti, 2003, Revision of the Genus Tiphysa Mulsant (Coleoptera, Coccinellidae, Hyperaspidinae), pp. 274-280 in The Coleopterists Bulletin 57 (3) on pages 279-280, DOI: 10.1649/556, http://zenodo.org/record/10103651
Fight or Flight: Cosmic Ray-Induced Phonons and the Quantum Surface Code
Creators: name: Sane, Bernard Ousmane
name: Van Meter, Rodney
name: Hajdušek, Michal
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recent work has identified cosmic ray events as an error source limiting the lifetime of quantum data. These errors are correlated and affect a large number of qubits, leading to the loss of data across a quantum chip. Previous works attempting to address the problem in hardware or by building distributed systems still have limitations. We approach the problem from a different perspective, developing a new hybrid hardware-software-based strategy based on the 2-D surface code, assuming the parallel development of a hardware strategy that limits the phonon propagation radius. We propose to flee the area: move the logical qubits far enough away from the strike's epicenter to maintain our logical information. Specifically, we: (1) establish the minimum hardware requirements needed for our approach; (2) propose a mapping for moving logical qubits; and (3) evaluate the possible choice of the code distance. Our analysis considers two possible cosmic ray events: those far from both ``holes'' in the surface code and those near or overlapping a hole. We show that the probability that the logical qubit will be destroyed can be reduced from 100% to the range 4% to 15% depending on the time required to move the logical qubit.
CV Jesus M. Ibanez
Creators: name: Jesus M. Ibanez
Publisher: name: Zenodo
Year: 2024

description: Over last 10 years, first as tenured professor and now as full professor, I have devoted my time to academic research, teaching (undergraduate and postgraduate), training and mentoring young scientists, disseminating knowledge, procuring funding (regional, national, and European authorities), managing projects, and creating a multidisciplinary research group.

ORCID: 0000-0002-9846-8781

Researcher ID: G-9910-2019,

Scopus Author ID: 7101992312

Google Scholar: https://scholar.google.es/citations?user=vH37E5MAAAAJ&hl=es&oi=ao

ResearchGate: https://www.researchgate.net/profile/Jesus-Ibanez-3
Tiphysa egae Crotch 1874
Creators: name: Milléo, Julianne
name: de Almeida, Lúcia Massutti
Publisher: name: Zenodo
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Coccinellidae
Tiphysa
Tiphysa egae

description: Tiphysa egae Crotch, 1874
(Figs. 20, 22)
 Tiphysa egae Crotch, 1874:210; Korschefsky 1931:208; Blackwelder 1945:449; Gordon, 1987:26.
 Diagnosis. Pronotum, scutellum and elytra dark blue with green metallic reflections and slight punctation (Fig. 22). Male with head black and labrum ferruginous; female with head black and oval spot ferruginous on fronto-clypeal region. Pronotum with wide yellow band on male, narrow on female. Thoracic venter and legs ferruginous (male) or black (female) with median and lateral region of abdomen ferruginous. Abdomen with six segments on female. Length 4.17–4.92 mm. Width 3.50–4.42 mm.
 Male. Not examined.
 Female. Spermatheca cylindrical, arched; infundibulum long, with three short arms (Fig. 20).
 Variation. The paralectotype has a narrow band on anterolateral angle of pronotum and legs ferruginous.
 Types. Lectotype and paralectotype of T. egae, from Amazonas, were examined and deposited in UMZC.
 Specimens Examined. BRASIL. Amazonas: Tefé (Egae), two specimens (UMZC).
description: Published as part of Milléo, Julianne & de Almeida, Lúcia Massutti, 2003, Revision of the Genus Tiphysa Mulsant (Coleoptera, Coccinellidae, Hyperaspidinae), pp. 274-280 in The Coleopterists Bulletin 57 (3) on page 280, DOI: 10.1649/556, http://zenodo.org/record/10103651
The Fundamental Plane at z=1.27: First Calibration of the Mass Scale of Red Galaxies at Redshifts z>1
Creators: name: van Dokkum, Pieter G.
name: Stanford, S. A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present results on the Fundamental Plane (FP) of early-type galaxies in the cluster RDCS J0848+4453 at z=1.27. Internal velocity dispersions of three K-selected early-type galaxies are determined from deep Keck spectra. Structural parameters are determined from HST NICMOS images. The galaxies show substantial offsets from the FP of the nearby Coma cluster, as expected from passive evolution of their stellar populations. The offsets from the FP can be expressed as offsets in M/L ratio. The M/L ratios of the two most massive galaxies are consistent with an extrapolation of results obtained at z=0.02-0.83. The evolution of early-type galaxies with masses >10^11 M_sun is well described by ln M/L(B) = (-1.06 +- 0.09) z, corresponding to passive evolution of -1.50 +- 0.13 mag at z=1.3. Ignoring selection effects, the best fitting stellar formation redshift is z*=2.6, corresponding to a luminosity weighted age at the epoch of observation of ~2 Gyr. The M/L ratios of these two galaxies are also in excellent agreement with predictions from models that include progenitor bias. The third galaxy is a factor ~10 less massive than the other two, shows strong Balmer absorption lines in its spectrum, and is offset from the Coma Fundamental Plane by 2.9 mag in rest-frame B. Despite their large range in M/L ratios, all three galaxies fall in the ``Extremely Red Object'' (ERO) class with I-H>3 and R-K>5, and our results show that it is hazardous to use simple models for converting luminosity to mass for these objects. Measurements of M/L ratios at high redshift can be considered first steps to empirically disentangle luminosity and mass evolution at the high mass end of the galaxy population, lifting an important degeneracy in the interpretation of evolution of the luminosity function. [SHORTENED]
description: Accepted for publication in the Astrophysical Journal
title: Chemotaxonomy Study of Plants from the Family Proteaceae Based on Its Natural Product Profile (Alkaloid)
Creators: name: Yang, Fan
Publisher: name: Griffith University
Year: 2017
Subjects: subject: Proteaceae
subject: Darlingia darlingiana
subject: D. ferruginea
subject: Eucarpha deplanchii
subject: E. strobilina
subject: Triunia erythrocarpa
subject: Tropane alkaloids
subject: Chemotaxonomy
subject: Natural products

description: The Proteaceae is a flowering plant family containing approximately 1700 species across more than 80 genera and is a predominant feature of Australian and South African flora. The chemistry of plants from the family has been studied by researchers for over a century but these studies have neither been systematic nor extensive. The research carried out in this thesis has firstly systematically reviewed and synthesized the current state of knowledge with regard to the natural products chemistry of the Proteaceae in relation to taxonomic groupings derived from molecular and morphometric phylogenetic analysis. The knowledge gained from this review was then used to direct further experimental studies to investigate the chemistry of seven species within four genera from (or closely related to) the subtribe Floydiinea – a subtribe anticipated to be a rich source of tropane alkaloids of unique structure. The thesis is subdivided into six chapters.
Two-Dimensional Topology of the 2dF Galaxy Redshift Survey
Creators: name: Hoyle, Fiona
name: Vogeley, Michael S.
name: Gott, J. Richard
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the topology of the publicly available data released by the 2dFGRS. The 2dFGRS data contains over 100,000 galaxy redshifts with a magnitude limit of b_J=19.45 and is the largest such survey to date. The data lie over a wide range of right ascension (75 degree strips) but only within a narrow range of declination (10 degree and 15 degree strips). This allows measurements of the two-dimensional genus to be made. The NGP displays a slight meatball shift topology, whereas the SGP displays a bubble like topology. The current SGP data also have a slightly higher genus amplitude. In both cases, a slight excess of overdense regions are found over underdense regions. We assess the significance of these features using mock catalogs drawn from the Virgo Consortium's Hubble Volume LCDM z=0 simulation. We find that differences between the NGP and SGP genus curves are only significant at the 1 sigma level. The average genus curve of the 2dFGRS agrees well with that extracted from the LCDM mock catalogs. We compare the amplitude of the 2dFGRS genus curve to the amplitude of a Gaussian random field with the same power spectrum as the 2dFGRS and find, contradictory to results for the 3D genus of other samples, that the amplitude of the GRF genus curve is slightly lower than that of the 2dFGRS. This could be due to a a feature in the current data set or the 2D genus may not be as sensitive as the 3D genus to non-linear clustering due to the averaging over the thickness of the slice in 2D. (Abridged)
description: Submitted to ApJ A version with Figure 1 in higher resolution can be obtained from http://www.physics.drexel.edu/~hoyle/
Additional file 1: of MgO-ZnO/carbon nanofiber nanocomposite as an adsorbent for ultrasound-assisted dispersive solid-phase microextraction of carbamazepine from wastewater prior to high-performance liquid chromatographic detection
Creators: name: Malesela Lekota
name: K. Dimpe
name: Philiswa Nomngongo
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: Table S1. Materials with their corresponding angles and phases. (DOC 30 kb)
Camera detection and modal fingerprinting of photonic crystal nanobeam resonances
Creators: name: Afzal, Francis O.
name: Petrin, Joshua M.
name: Weiss, Sharon M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate in simulation and experiment that the out-of-plane, far-field scattering profile of resonance modes in photonic crystal nanobeam (PCN) cavities can be used to identify resonance mode order. Through detection of resonantly scattered light with an infrared camera, the overlap between optical resonance modes and the leaky region of k-space can be measured experimentally. Mode order dependent overlap with the leaky region enables usage of resonance scattering as a "fingerprint" by which resonant modes in nanophotonic structures can be identified via detection in the far-field. By selectively observing emission near the PCN cavity region, the resonant scattering profile of the device can be spatially isolated and the signal noise introduced by other elements in the transmission line can be significantly reduced, consequently improving the signal to noise ratio (SNR) of resonance detection. This work demonstrates an increase in SNR of ~19 dB in out-of-plane scattering measurements over in-plane transmission measurements. The capabilities demonstrated here may be applied to improve characterization across nanophotonic devices with mode-dependent spatial field profiles and enhance the utility of these devices across a variety of applications.
Anomalous X-ray Pulsars and Soft gamma-ray Repeaters: Spectral Fits and the Magnetar Model
Creators: name: Perna, Rosalba
name: Heyl, Jeremy
name: Hernquist, Lars
name: Juett, Adrienne
name: Chakrabarty, Deepto
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The energy source powering the X-ray emission from anomalous X-ray pulsars (AXPs) and soft gamma-ray repeaters (SGRs) is still uncertain. In one scenario, the presence of an ultramagnetized neutron star, or ``magnetar'', with B on the order of 10^{14} - 10^{15} G is invoked. To investigate this hypothesis, we have analyzed archival ASCA data for several known AXPs and SGRs, and fitted them with a model in which all or part of the X-ray flux originates as thermal emission from a magnetar. Our magnetar spectral model includes the effects of the anisotropy of the heat flow through an ultramagnetized neutron star envelope, reprocessing by a light element atmosphere, and general relativistic corrections to the observed spectrum. We obtain good fits to the data with radii for the emitting areas which are generally consistent with those expected for neutron stars, in contrast to blackbody (BB) fits, which imply much smaller radii. Furthermore, the inclusion of atmospheric effects results in inferred temperatures which are lower than those implied by BB fits, but however still too high to be accounted by thermal cooling alone. An extra source of heating (possibly due to magnetic field decay) is needed. Despite the harder tail in the spectrum produced by reprocessing of the outgoing flux through the atmosphere, spectral fits still require a considerable fraction of the flux to be in a power-law component.
description: 14 pages, 2 tables, 1 figure, ApJ in press; note added to Table 2
Gamma-Ray Burst Neutrino Background and Star Formation History in the Universe
Creators: name: Nagataki, S.
name: Kohri, K.
name: Ando, S.
name: Sato, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We estimate the flux of the GRB neutrino background and compute the event rate at SK and TITAND in the collapsar model, assuming that GRB formation rate is proportional to the star formation rate. We find that the flux and the event rate depend sensitively on the mass-accretion rate. Although the detection of signals from GRBs seems to be difficult by SK, we find that we can detect them by TITAND (optimistically about 20 events per year in the energy range where the energy of anti-electron neutrino is larger than 50 MeV). Therefore, we show that we will obtain the informations on the mass-accretion rate of collapsar by observing the GRB neutrino background, which, in turn, should give us informations on the total explosion energy of GRBs.
description: 29 pages, 14 postscript figures, using REVTeV
title: Adapting Science Teaching Explanations to Secondary School Learners
Creators: name: Ter Borg, Rose J
Publisher: name: Griffith University
Year: 2022
Subjects: subject: secondary school
subject: science teaching
subject: science explanations

description: Science teachers explain concepts to students to improve their understanding of scientific phenomena, however, in order to be effective, a science teaching explanation needs to be adapted to the prior knowledge, ability, and motivations of specific learners. The effectiveness of science teaching explanations can be evaluated by considering the following components: response to learners; tools for adaptation; structure; clarity; highlighting relevance; timing within learning sequence; and accuracy. A multiple case study methodology was used to explore the ways in which teachers adapt these components when explaining concepts to different classes. Three science teachers were observed explaining concepts in their junior secondary science classes and subsequently interviewed to ascertain reasons for why they chose to explain concepts in a particular way. Content analysis was used to identify key themes. Findings indicated that the teachers adapted their explanations in their classes by varying their (1) response to learners, (2) use of tools for adaptations, (3) learning sequence, depth, and pace. Teachers described student factors which influenced their explanations, including student (i) ability, (ii) attitude towards science, (iii) response during the lesson, (iv) behaviour, and (v) interest. These factors were identified as the dominant cause of differences in explanations between classes. Other influences included contextual factors including time availability, physical classroom and class size, and the different teachers’ views on pedagogy. These findings indicate that science teaching explanations can be responsive rather than transmissive, with implications of this study indicating that asynchronous video explanations should not be considered as direct replacements for classroom explanations. Professional development relating to science teaching explanations should include ways to adapt explanations to the prior knowledge, ability, motivations, and interests of particular students, to improve comprehension, engagement and accessibility.
Possible arcminute-separation gravitational lensed QSOs in the 2dF QSO survey
Creators: name: Miller, L.
name: Lopes, A. M.
name: Smith, R. J.
name: Croom, S. M.
name: Boyle, B. J.
name: Shanks, T.
name: Outram, P.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the possible discovery of multiple gravitationally-lensed images of QSOs with angular separations on arcminute scales. The QSOs were selected from the completed 2dF QSO survey as having redshifts and optical colours which are statistically consistent. In this paper we present higher-quality optical spectra of the candidates and discuss the likelihood of their genuinely being systems lensed by massive clusters of galaxies. From a comparison of the spectra it appears that up to six pairs of QSOs may be lensed multiple images, although the true number may be less than that and further observations should be undertaken to amass more evidence and to detect the lensing clusters. Two of the candidates may be associated with low redshift clusters of galaxies.
description: Revised version accepted for publication in MNRAS
title: Capitalization of capital gains taxes
title: (In)attention and turn-of-the-year returns
titleType: Subtitle
Creators: name: Eichfelder, Sebastian
name: Lau, Mona
Publisher: name: Freie Universität Berlin
Year: 2015
Subjects: subject: Capital gains tax
subject: asset pricing
subject: tax awareness
subject: tax arbitrageM
subject: turn-of-the-year effect
subject: market efficiency
subject: 300 Sozialwissenschaften::330 Wirtschaft::332 Finanzwirtschaft

description: We argue that the tax capitalization effect is a function of the attention of market participants. Market reactions can therefore be driven not only by the announcement dates of tax events but also by factors influencing the dissemination of tax information, such as deadlines and media reports. Analyzing the introduction date of the earlier-announced German capital gains tax reform of 2009 by triple-difference estimation, we find evidence of a delayed market reaction long after the announcement date. Within the last two (five) trading days before the deadline, we observe a sharp increase in abnormal trading volumes of 151.7% (104.0%). The aggregate abnormal return of the German capital market in the last five trading days in 2008 was 10.6%. Furthermore, we find a significant and positive correlation between trading volumes and measures for awareness of the upcoming tax reform (Google searches and media reports).
Stenus simpliciclunis Puthz 2008, nov.sp.
Creators: name: Puthz, V.
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Staphylinidae
Stenus
Stenus simpliciclunis

description: Stenus (s.str.) simpliciclunis nov.sp.
 T y p e n m a t e r i a l - Holotypus: Kolumbien: Dept. Cauca: Paramo Purace, 15 km E. Purace, beating foliage, 20.X.1958, B. Malkin: im FMCh.
B e s c h r e i b u n g Brachypter, dunkel-bräunlich mit Bronzeschimmer, ziemlich glänzend, jede Elytre mit einer ziemlich grossen, ovalen, leicht erhobenen orangegelben Makel, Kopf grob und ziemlich weitläufig punktiert, Pronotum und Elytren grob und dicht punktiert, Abdomen wenig grob, mässig dicht punktiert; Beborstung glänzend, anliegend. Fühler hellbraun. Kiefertaster gelblich. Beine rötlichbraun. Clypeus und Oberlippe schwarzbraun, dicht beborstet.
Länge: 5,0 mm (RPL: 4,5-5,5 mm).
PM des HT: HW: 40,3; FW:21,5; PW: 34; PL: 34; EW: 43; EL: 36; SL: 29.
M ä n n c h e n: unbekannt.
W e i b c h e n: 8. Sternit einfach (Abb. 113). Valvifer (Abb. 112). 10. Tergit abgerundet. Keine sklerotisierte Spermatheka.
 D i s k u s s i o n: Wegen seiner Brachypterie kann dieser neue Stenus im metallicus - Komplex und der fenestralis -Verwandtschaft nur mit S. clunispicatus verwechselt werden. Von diesem unterscheidet er sich durch stärker eingesenkte Stirn, breiteren leicht erhobenen, völlig punktfreien Stirnmittelteil und durch weitläufigere Punktierung auch der Stirnseiten (Punktabstände hier oft grösser als die Punkte), durch viel längere, aber ebenso trapezoide Elytren und die erheblich grössere Makel derselben (diese ist gut so lang wie die letzten drei Fühlerglieder zusammengenommen und nur wenig schmäler als das 3. Fühlerglied lang; in der bräunlichen Grundfärbung der Elytren sind die Makeln nur unscharf abgesetzt). Abdomen wie bei der verglichenen Art, die Punktierung aber etwas weniger grob. Die bräunliche Färbung des Holotypus könnte darauf zurückzuführen sein, dass das Stück noch nicht endgültig ausgefärbt ist.
 E t y m o l o g i e: Weil das 8. Sternit des Weibchens keine besondere Auszeichnung aufweist, nenne ich diese neue Art " simpliciclunis " (lat. = "die mit dem einfachen Hintern").
description: Published as part of Puthz, V., 2008, Stenus LATREILLE und die segenreiche Himmelstochter (Coleoptera, Staphylinidae), pp. 137-230 in Linzer biologische Beiträge 40 (1) on page 198, DOI: 10.5281/zenodo.5426801
Aplatyphylax camory Malicky 2012, nov.sp.
Creators: name: Malicky, H.
Publisher: name: Zenodo
Year: 2012
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Trichoptera
Limnephilidae
Aplatyphylax
Aplatyphylax camory

description: Aplatyphylax camory nov.sp.
Gelbbraun, Vorderflügel hell marmoriert, die Queradern der Anastomose sind verdunkelt. VFL 12-13 mm, 11-13 mm. KA (Tafel 18): 8. Tergit mit zwei voneinander weit getrennten Buckeln, die mit einigen sehr dicken, kurzen Dörnchen besetzt sind. 9. Segment in LA schmal, dorsal und ventral am schmalsten. OA lang und fingerförmig. Die mittleren Anhänge bestehen aus einem mittleren unpaaren, nach oben gebogenen stumpfen, breiten Zahn und zwei lateralen ebensolchen, die schmäler sind. UA sehr kurz, in LA stumpf dreieckig, in VA sehr kurz und nur lateral etwas länger fingerförmig. PA einfach, plump, leicht s-förmig gewellt. Das Auffallendste sind die Parameren, die aus je einer rundlichen Platte bestehen, aus der zwei lange Dornen entspringen: ein kleiner dünner, der leicht nach oben gekrümmt ist. und ein sehr grosser, der weit nach oben gebogen ist und die ganze Kaudalfläche einnimmt und schon mit freiem Auge zu sehen ist. In Hinblick auf diese Struktur kenne ich keine auch nur annähernd ähnliche Art.
Holotypus und mehrere Paratypen und: Nepal, Chautara distr., Maidan, 8000 ft., 12.11.199 3, leg. M. Allen, CM. – Weitere 2 Paratypen: Nepal, Tibet border, Tato Pani, Sun Kosi River, 4000 ft., 18.11.199 3, leg. M. Allen, CM.
description: Published as part of Malicky, H., 2012, Neue asiatische Köcherfliegen aus neuen Ausbeuten (Insecta, Trichoptera), pp. 1263-1310 in Linzer biologische Beiträge 44 (2) on pages 1282-1283, DOI: 10.5281/zenodo.5329501
Characteristics of air showers created by extremely high energy gamma-rays
Creators: name: Plyasheshnikov, A. V.
name: Aharonian, F. A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The technique of adjoint cascade equations has been applied to calculate the properties of extremely high energy gamma-rays in the energy range 10^18--10^22 eV with taking into account the LPM effect and interactions of gamma-rays with the geomagnetic field. Such characteristics are analysed as the electron and muon contents at the observation level, the electron cascade curves, the lateral distribution functions of photoproduced muons.
description: 36 pages, 19 figures, submitted to J.Phys.G: Nucl.Part.Phys
Breaking the Redshift Deadlock - I: Constraining the star formation history of galaxies with sub-millimetre photometric redshifts
Creators: name: Hughes, D. H.
name: Aretxaga, I.
name: Chapin, E. L.
name: Gaztanaga, E.
name: Dunlop, J. S.
name: Devlin, M. J.
name: Halpern, M.
name: Gundersen, J.
name: Klein, J.
name: Netterfield, C. B.
name: Olmi, L.
name: Scott, D.
name: Tucker, G.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Future extragalactic sub-millimetre and millimetre surveys have the potential to provide a sensitive census of the level of obscured star formation in galaxies at all redshifts. While in general there is good agreement between the source counts from existing SCUBA (850um) and MAMBO (1.25mm) surveys of different depths and areas, it remains difficult to determine the redshift distribution and bolometric luminosities of the sub-millimetre and millimetre galaxy population. This is principally due to the ambiguity in identifying an individual sub-millimetre source with its optical, IR or radio counterpart which, in turn, prevents a confident measurement of the spectroscopic redshift. Additionally, the lack of data measuring the rest-frame FIR spectral peak of the sub-millimetre galaxies gives rise to poor constraints on their rest-frame FIR luminosities and star formation rates. In this paper we describe Monte-Carlo simulations of ground-based, balloon-borne and satellite sub-millimetre surveys that demonstrate how the rest-frame FIR-sub-millimetre spectral energy distributions (250-850um) can be used to derive photometric redshifts with an r.m.s accuracy of +/- 0.4 over the range 0 < z < 6. This opportunity to break the redshift deadlock will provide an estimate of the global star formation history for luminous optically-obscured galaxies [L(FIR) > 3 x 10^12 Lsun] with an accuracy of 20 per cent.
description: 14 pages, 22 figures, submitted to MNRAS, replaced with accepted version
Additional file 1 of SRAssembler: Selective Recursive local Assembly of homologous genomic regions
Creators: name: McCarthy, Thomas
name: Hsien-Chao Chou
name: Brendel, Volker
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Figure comparing assembly of target genes from simulated reads as a factor of read coverage depth. Twenty Arabidopsis genes were assembled from 20 different sets of simulated reads (â seedsâ ), at four different read coverage depths. Although the majority of gene/seed combinations showed improved assembly of the gene with increasing coverage depth, each gene had at least one seed that produced a worse result at higher coverage depth than it had at a lower depth (demonstrated by negative line slopes). (PDF 13 kb)
Addressing hesitancy to COVID-19 vaccines in healthcare assistants
Creators: name: Berry, Sarah D
name: Hanson, Laura C
name: Harrison, Jill
name: Syme, Maggie
name: Kelley, Casey J
name: Niznik, Joshua D
Publisher: name: Elsevier
Year: 2022

description:
COVID-19 vaccination rates have been suboptimal in frontline healthcare assistants (HCAs). We sought to characterize contributors to COVID-19 vaccine hesitancy among HCAs. We conducted an analysis of online survey responses from members of the National Association of Health Care Assistants from December 2020-January 2021. Respondents were asked what it would take for them to be vaccinated against COVID-19. Responses from 309 HCAs were coded to characterize respondents' willingness to be vaccinated and identify contributors to vaccine hesitancy. Approximately 60% (n = 185) of HCAs expressed hesitancy but would consider getting vaccinated under certain circumstances. We identified 8 overarching themes for contributors to COVID-19 vaccine hesitancy, the most common being safety concerns (70% of respondents). Others included efficacy (11.4%), workplace requirements (9.7%), societal influence (9.2%), and compensation (8.1%). Interventions to increase vaccine uptake among HCAs may be most effective by addressing concerns regarding the short-term and long-term safety implications of COVID-19 vaccines.
New solution to viscous evolution of accretion disks in binary systems
Creators: name: Lipunova, G. V.
name: Shakura, N. I.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Analytical investigation of time-dependent accretion in disks is carried out. We consider a time-dependent disk in a binary system at outburst which has a fixed tidally-truncated outer radius. The standard Shakura-Sunyaev model of the disk is considered. The vertical structure of the disk is accurately described in two regimes of opacity: Thomson and free-free. Fully analytical solutions are obtained, characterized by power-law variations of accretion rate with time. The solutions supply asymptotic description of disk evolution in flaring sources in the periods after outbursts while the disk is fully ionized. The X-ray flux of multicolor (black-body) alpha-disk is obtained as varying quasi-exponentially. Application to X-ray novae is briefly discussed concerning the observed faster-than-power decays of X-ray light curves. The case of time-dependent advective disk when the exponential variations of accretion rate can occur is discussed.
description: 14 pages, 3 figures, typos are corrected in formulae (17),(26),(29),(31),(34),(46)
A Submillimeter and Radio Survey of Gamma-Ray Burst Host Galaxies: A Glimpse into the Future of Star Formation Studies
Creators: name: Berger, E.
name: Cowie, L. L.
name: Kulkarni, S. R.
name: Frail, D. A.
name: Aussel, H.
name: Barger, A. J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first comprehensive search for submillimeter and radio emission from the host galaxies of twenty well-localized gamma-ray bursts (GRBs). With the exception of a single source, all observations were undertaken months to years after the GRB explosions to ensure negligible contamination from the afterglows. We detect the host galaxy of GRB 000418 in both the sub-mm and radio, and the host galaxy of GRB 000210 only in the sub-mm. These observations, in conjunction with the previous detections of the host galaxies of GRB 980703 and GRB 010222, indicate that about 20% of GRB host galaxies are ultra-luminous and have star formation rates of about 500 M_sun/yr. As an ensemble, the non-detected hosts have a star formation rate of about 100 M_sun/yr (5-sigma) based on their radio emission. The detected and ensemble star formation rates exceed the optical values by an order of magnitude, indicating significant dust obscuration. In the same vein, the ratio of bolometric dust luminosity to UV luminosity for the hosts detected in the sub-mm and radio ranges from 20-800, and follows the known trend of increasing obscuration with increasing bolometric luminosity. We also show that, both as a sample and individually, the GRB host galaxies have bluer R-K colors as compared with galaxies selected in the sub-mm in the same redshift range. This possibly indicates that the stellar populations in the GRB hosts are on average younger, supporting the massive stellar progenitor scenario for GRBs, but it is also possible that GRB hosts are on average less dusty.
description: Submitted to ApJ; 36 pages, 3 tables, 7 figures; updated references