cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Melittia abyssiniensis Hampson 1919, n. sp.
Creators: name: Gorbunov, Oleg G.
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Sesiidae
Melittia
Melittia abyssiniensis

description: Melittia abyssiniensis Hampson, 1919
Figs. 1, 2
 “ Melittia abyssiniensis n. sp. ”— Hampson, 1919: 95. Type locality: “Harrar [sic!] …” [Ethiopia: Harari kilil, Harar]. Holotype ♀ (Figs. 1, 2) (BMNH).
 Dalla Torre & Strand, 1925: 137 (Melittia); Gaede, 1929: 531, pl. 77, row g (Melittia); Heppner & Duckworth, 1981: 26 (Melittia); Gorbunov & Arita, 1997: 302, 303 (Melittia); Pühringer & Kallies, 2004: 15 (Melittia).
This species was originally described from Harar, Ethiopia, based on a single female specimen (Hampson, 1919) and till now no additional specimens have been collected. The original description by Hampson fairly complete and we do not need to repeat it here. Unfortunetely, males, female genitalia and individual variability remain unknown.
 Differential diagnosis. By its coloration and completely opaque wings this species belongs to the aureosquamata species-group. From M. aureosquamata (Wallengren, 1863) M. abyssiniensis can be distinguished by minute details in the coloration of the hind leg tuft. It is possible, as was stated before in Gorbunov & Arita (1997), that the latter species may be a junior synonym of M. aureosquamata. From M. houlberti Le Cerf, 1917, M. abyssiniensis differs by the coloration of the hind tibia (dark brown to black with bronze sheen, with a narrow orange stripe dorsally from base of tibia to base of mid spurs in the species compared) and hind tarsus (dark brown to black with strong bronze-green sheen in M. houlberti, cp. Fig. 1 with fig. 9 in Gorbunov, Arita, 1997). From M. azrael Le Cerf, 1914, this species clearly differs by the coloration of the vertex (brown to dark brown with bronze sheen, with a few orange and black scales in M. azrael), thorax (both meso- and metathorax dark brown with bronze sheen in the species compared), hind leg tuft (without orange scales in the species compared) and by the coloration of the wings (dark brown with strong golden-green sheen in M. azrael, cp. Fig. 1 with fig. 9 in Gorbunov, Arita, 1997). From all other afro-tropical congeners M. abyssiniensis is clearly separated by the coloration and entirely opaque wings.
 Bionomics and Habitat. Unknown.
 Distribution. Known from the type locality only: Ethiopia: Harar.
description: Published as part of Gorbunov, Oleg G., 2015, Contributions to the study of the Ethiopian Lepidoptera. I. The genus Melittia Hübner, 1819 [" 1816 "] (Lepidoptera: Sesiidae) with description of a new species, pp. 543-554 in Zootaxa 4033 (4) on page 544, DOI: 10.11646/zootaxa.4033.4.5, http://zenodo.org/record/237991
Cabinet Card Collection
Creators: name: (:Unas)
Publisher: name: Unknown
Year: 1860
Subjects: Women
Men
Cabinet photographs
Portrait photographs
Portraits
Tintypes
Children
Infants
Landscape photographs
Photography

description: This collection of photographs feature mostly cabinet cards of unidentified people and places. Some have the photographers and gallery information of the reverse side. The dates of these photos date anywhere from 1860 to 1900. These are great examples of dated fashion, photography techniques, and landscape photography.
Shattering as a source of small grains in the circum-galactic medium
Creators: name: Hirashita, Hiroyuki
name: Lan, Ting-Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Observed reddening in the circum-galactic medium (CGM) indicates a significant abundance of small grains, of which the origin is still to be clarified. We examine a possible path of small-grain production through shattering of pre-existing large grains in the CGM. Possible sites where shattering occurs on a reasonable time-scale are cool clumps with hydrogen number density $n_\mathrm{H}\sim 0.1$ cm$^{-3}$ and gas temperature $T_\mathrm{gas}\sim 10^4$ K, which are shown to exist through observations of Mg II absorbers. We calculate the evolution of grain size distribution in physical conditions appropriate for cool clumps in the CGM, starting from a large-grain-dominated distribution suggested from theoretical studies. With an appropriate gas turbulence model expected from the physical condition of cold clumps (maximum eddy size and velocity of $\sim$100 pc and 10 km s$^{-1}$, respectively), together with the above gas density and temperature and the dust-to-gas mass ratio inferred from observations (0.006), we find that small-grain production occurs on a time-scale (a few $\times 10^8$ yr) comparable to the lifetime of cool clumps derived in the literature. Thus, the physical conditions of the cool clouds are favrourable for small-grain production. We also confirm that the reddening becomes significant on the above time-scale. Therefore, we conclude that small-grain production by shattering is a probable cause for the observed reddening in the CGM. We also mention the effect of grain materials (or their mixtures) on the reddening at different redshifts (1 and 2).
description: 13 pages, 8 figures, Accepted for publication in MNRAS
Correlations and structure of interfaces in the Ising model. Theory and numerics
Creators: name: Squarcini, Alessio
name: Tinti, Antonio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider phase separation on the strip for the two-dimensional Ising model in the near-critical region. Within the framework of field theory, we find exact analytic results for certain two- and three-point correlation functions of the order parameter field. The analytic results for order parameter correlations, energy density profile, subleading corrections and passage probability density of the interface are confirmed by accurate Monte Carlo simulations we performed.
description: 42 pages, 19 figures
A numerical stability analysis of mean curvature flow of noncompact hypersurfaces with Type-II curvature blowup
Creators: name: Garfinkle, David
name: Isenberg, James
name: Knopf, Dan
name: Wu, Haotian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Differential Geometry (math.DG)
subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 53C44, 35K59, 65M06, 65D18

description: We present a numerical study of the local stability of mean curvature flow of rotationally symmetric, complete noncompact hypersurfaces with Type-II curvature blowup. Our numerical analysis employs a novel overlap method that constructs "numerically global" (i.e., with spatial domain arbitrarily large but finite) flow solutions with initial data covering analytically distinct regions. Our numerical results show that for certain prescribed families of perturbations, there are two classes of initial data that lead to distinct behaviors under mean curvature flow. Firstly, there is a "near" class of initial data which lead to the same singular behaviour as an unperturbed solution; in particular, the curvature at the tip of the hypersurface blows up at a Type-II rate no slower than $(T-t)^{-1}$. Secondly, there is a "far" class of initial data which lead to solutions developing a local Type-I nondegenerate neckpinch under mean curvature flow. These numerical findings further suggest the existence of a "critical" class of initial data which conjecturally lead to mean curvature flow of noncompact hypersurfaces forming local Type-II degenerate neckpinches with the highest curvature blowup rate strictly slower than $(T-t)^{-1}$.
description: 23 pages, 11 figures. Comments are welcome!
Field induced hysteretic structural phase switching and possible CDW in Re-doped MoTe$_2$
Creators: name: Vasdev, Aastha
name: Kamboj, Suman
name: Sirohi, Anshu
name: Mandal, Manasi
name: Marik, Sourav
name: Singh, Ravi Prakash
name: Sheet, Goutam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Novel electronic systems displaying exotic physical properties can be derived from complex topological materials through chemical doping. MoTe$_2$, the candidate type-II Weyl semimetal shows dramatically enhanced superconductivity up to 4.1 K upon Re doping in Mo sites. Based on bulk transport and local scanning tunneling microscopy (STM) here we show that Re doping also leads to the emergence of a possible charge density wave (CDW) phase in Re$_{0.2}$Mo$_{0.8}$Te$_2$. In addition, the tunneling $I-V$ characteristics display non-linearity and hysteresis which is commensurate with a hysteresis observed in the change in tip-height ($z$) as a function of applied voltage $V$. The observations indicate an electric field induced hysteretic switching consistent with piezoelectricity and possible ferroelectricity.
description: To appear in Journal of Physics: Condensed Matter (JPCM)
A pedagogical discussion of N = 1 four-dimensional supergravity in superspace
Creators: name: Ducrocq, Robin
name: de Traubenberg, Michel Rausch
name: Valenzuela, Mauricio
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A short introduction to N = 1 supergravity in four dimensions in the superspace approach is given emphasising on all steps to obtain the final Lagrangian. In particular starting from geometrical principles and the introduction of superfields in curved superspace, the action coupling matter and gauge fields to supergravity is derived. This review is based on the book -A supergravity Primer: From geometrical principles to the Final Lagrangian- and on several lectures given at the doctoral school of Strasbourg.
Gravity duals of half-BPS Wilson loops
Creators: name: D'Hoker, Eric
name: Estes, John
name: Gutperle, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We explicitly construct the fully back-reacted half-BPS solutions in Type IIB supergravity which are dual to Wilson loops with 16 supersymmetries in $\mathcal{N}=4$ super Yang-Mills. In a first part, we use the methods of a companion paper to derive the exact general solution of the half-BPS equations on the space $AdS_2 \times S^2 \times S^4 \times Σ$, with isometry group $SO(2,1)\times SO(3) \times SO(5)$ in terms of two locally harmonic functions on a Riemann surface $Σ$ with boundary. These solutions, generally, have varying dilaton and axion, and non-vanishing 3-form fluxes. In a second part, we impose regularity and topology conditions. These non-singular solutions may be parametrized by a genus $g \geq 0$ hyperelliptic surface $Σ$, all of whose branch points lie on the real line. Each genus $g$ solution has only a single asymptotic $AdS_5 \times S^5$ region, but exhibits $g$ homology 3-spheres, and an extra $g$ homology 5-spheres, carrying respectively RR 3-form and RR 5-form charges. For genus 0, we recover $AdS_5 \times S^5$ with 3 free parameters, while for genus $g \geq 1$, the solution has $2g+5$ free parameters. The genus 1 case is studied in detail. Numerical analysis is used to show that the solutions are regular throughout the $g=1$ parameter space. Collapse of a branch cut on $Σ$ subtending either a homology 3-sphere or a homology 5-sphere is non-singular and yields the genus $g-1$ solution. This behavior is precisely expected of a proper dual to a Wilson loop in gauge theory.
description: 62 pages, LaTeX, 6 figures, v2: minor changes
Multiscale characterization of interfacial region in flexible rubber composites: initial structure and evolution upon thermal treatment
Creators: name: Enganati, S. K.
name: Addiego, F.
name: Fernandes, J. P. C.
name: Koutsawa, Y.
name: Zielinski, B.
name: Ruch, D.
name: Mertz, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: To investigate the structural changes upon thermal treatment of resorcinol formaldehyde latex (RFL) interfacial layer in rubber-cord flexible composite, a multiscale approach has been employed. High-resolution AFM mapping showed a significant increase of the modulus of the RF phase from 1.2 GPa to 2.3 GPa and latex phase (L) from 0.3 GPa to 0.8 GPa after a thermal exposure at 100°C for 10 days. The increase of the RF and L phases elastic modulus was correlated with the increase of the oxygen content in RFL layer based on the measurements by SEM-EDX. Besides by combining finite element simulations and AFM modulus profiling, the presence of an interphase region (over 280 nm) between the RFL and the rubber regions was identified and was not deteriorated by the thermal treatment. Peel adhesion testing revealed that the increase of RF and L phases rigidity after thermal treatment was detrimental for the interfacial adhesion of the rubber composite.
description: 21 pages, 12 figures
Feasibility of a shortened pathway for nitrogen removal from highly nitrogenous wastes
Creators: name: Turk, Oussama
Publisher: name: University of British Columbia
Year: 2010

description: The objective of the research program was to demonstrate the feasibility of removing nitrogen from highly nitrogenous wastes by a shortened nitrification/denitrification pathway. This process bypasses the nitrite oxidation step to nitrate and the concomitant nitrate reduction to nitrite. The success of the shortcut is dependent on selectively inhibiting the nitrite oxidation step, allowing nitrite to accumulate in the aerobic environment, and be subsequently reduced anaerobically to a gaseous product. Seven runs lasting between 13 and 359 days were undertaken using bench-scale, activated sludge cells operated in series. Parameters investigated as potential selective inhibitors were: dissolved oxygen, nitrous acid, anaerobiosis, and free ammonia. Of these, only free ammonia (at 5 to 10 mg NH₃-N/L) was found to be effective as a differential inhibitor of unacclimated populations. Nitrite build-up was achieved by intermittent contact of the nitrite oxidizers with the high, free ammonia level in the cell at the front-end of the system. Comparison of this shortened nitrogen removal pathway with the traditional mechanism revealed: 1) a 40% reduction of COD demand during denitrification; 2) 63% higher rate of denitrifica-tion; 3) Two thirds reduction in biomass yield during anaerobic growth; 4) no apparent nitrite toxicity effects. The degree of nitrite build-up was found to be inversely related to the aerobic residence time. High nitrite concentrations could not be sustained indefinitely, due to acclimation of the nitrite oxidizers to free ammmonia. Measures investigated to overcome the effects of acclimation were: 1) reduction of the sludge age; 2) extension of contact time to high, free ammonia levels; 3) raising free ammonia levels; 4) use of a potentially more inhibitory waste; 5) double substrate inhibition; 6) provision of intermediary recycle, or internal denitrification; 7) temporary reduction of free ammonia levels; 8) temporary stoppage of feed. Of these, the most effective was internal denitrification, due to the continued ability of free ammonia to maintain some degree of inhibition to an acclimated population of nitrite oxidizers. As a result, their nitrifying activity lagged that of the ammonia oxidizers by several hours, allowing nitrite build-up to sustain itself.
Coastlines and percolation in a model for hierarchical random deposition
Creators: name: Berx, Jonas
name: Bervoets, Evi
name: Giuraniuc, Claudiu V.
name: Indekeu, Joseph O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We revisit a known model in which (conducting) blocks are hierarchically and randomly deposited on a $d$-dimensional substrate according to a hyperbolic size law with the block size decreasing by a factor $λ\, > 1$ in each subsequent generation. In the first part of the paper the number of coastal points (in $D=1)$ or coastlines (in $D=2)$ is calculated, which are points or lines that separate a region at "sea level" and an elevated region. We find that this number possesses a non-universal character, implying a Euclidean geometry below a threshold value $P_c$ of the deposition probability $P$, and a fractal geometry above this value. Exactly at the threshold, the geometry is logarithmic fractal. The number of coastlines in $D=2$ turns out to be exactly twice the number of coastal points in $D=1$. We comment briefly on the surface morphology and derive a roughness exponent $α$. In the second part, we study the percolation probability for a current in this model and two extensions of it, in which both the scale factor and the deposition probability can take on different values between generations. We find that the percolation threshold $P_c$ is located at exactly the same value for the deposition probability as the threshold probability of the number of coastal points. This coincidence suggests that exactly at the onset of percolation for a conducting path, the number of coastal points exhibits logarithmic fractal behaviour.
description: 26 pages, 24 figures. v2 -> Corrected author list and added DOI
DeePaC models for novel fungal pathogens and real-time detection of multiple pathogen classes
Creators: name: Bartoszewicz, Jakub M.
name: Nasri, Ferdous
name: Nowicka, Melania
name: Renard, Bernhard Y.
Publisher: name: Zenodo
Year: 2021
Subjects: fungi
novel pathogens
bioinformatics
deep learning
next-generation sequencing

description: A collection of DeePaC ResNet models for 1) pathogenic potential prediction for novel fungal species (input Illumina read length: 250bp) 2) real-time detection of novel bacterial, viral and fungal pathogens (input Illumina read length: 25-250bp). Those models assume four classes: non-pathogens (i.e. commensal bacteria or non-human viruses), pathogenic bacteria, human-infecting viruses, and human-infecting fungi. Two alternative models are provided: we recommend either using the 'log' model (for faster inference), or an ensemble averaging predictions of both models (for better results). See the code and manual at https://gitlab.com/dacs-hpi/deepac. Model weights for the fungal (-fun-) and multi-class (-multi4-) models in .h5 files and config .ini files. The models were trained on read sets hosted here: https://zenodo.org/record/5713153 based on a curated database of pathogenic fungi (https://zenodo.org/record/5711852). See also the preprint: https://www.biorxiv.org/content/10.1101/2021.11.30.470625v1
The Florence Trigger-Box (FTB) project: an FPGA-based configurable and scalable trigger system
Creators: name: Ottanelli, Pietro
name: Pasquali, Gabriele
name: Baldesi, Lucia
name: Barlini, Sandro
name: Bolzonella, Riccardo
name: Camaiani, Alberto
name: Casini, Giovanni
name: Ciampi, Caterina
name: Marchi, Tommaso
name: Piantelli, Silvia
name: Valdre', Simone
name: Verde, Giuseppe
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A multi-layer trigger system, based on programmable logic devices hosted on VME boards, has been implemented. It is completely scalable and suitable for handling from a few up to a few hundred channels. Custom software for monitoring and controlling the trigger system has been developed.
description: 23 pages, 4 figures, Published on Nuclear Instruments and Methods in Physics Research A. For associated software/firmware package see https://github.com/NUCLEX-Fi/FTBOX.git
Extended Hubbard model with renormalized Wannier wave functions in the correlated state: beyond the parametrized models
Creators: name: Kurzyk, Jan
name: Wójcik, Włodzimierz
name: Spałek, Jozef
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The method used earlier for analysis of correlated nanoscopic systems is extended to infinite (periodic) s-band like systems described by the Hubbard model and its extensions. The optimized single-particle wave functions contained in the parameters of the Hubbard model (the hopping \textit{t} and the magnitude of the intraatomic interaction \textit{U}) are determined explicitly in the correlated state for the electronic systems of various symmetries and dimensions: Hubbard chain, square and triangular planar lattices, and the three cubic lattices (SC, BCC, FCC). In effect, the evolution of the electronic properties as a function of interatomic distance $R$ is obtained. The model parameters in most cases do not scale linearly with the lattice spacing and hence, their solution as a function of microscopic parameters reflects only qualitatively the system evolution. Also, the atomic energy changes with $R$ and therefore should be included in the model analysis. The solutions in one dimension (\textit{D} = 1) can be analyzed both rigorously (by making use of the Lieb--Wu solution) and compared with the approximate Gutzwiller treatment. In higher dimensions (\textit{D} = 2, 3) only the latter approach is possible to implement within the scheme. The renormalized single particle wave functions are almost independent of the choice of the scheme selected to diagonalize the Hamiltonian in the Fock space in D=1 case. The method can be extended to other approximation schemes as stressed at the end.
description: 19 pages, 15 figure, 4 tables
Quantum graphs where back-scattering is prohibited
Creators: name: Harrison, J. M.
name: Smilansky, U.
name: Winn, B.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q50, 05C99

description: We describe a new class of scattering matrices for quantum graphs in which back-scattering is prohibited. We discuss some properties of quantum graphs with these scattering matrices and explain the advantages and interest in their study. We also provide two methods to build the vertex scattering matrices needed for their construction.
description: 15 pages
Towards Physarum robots: computing and manipulating on water surface
Creators: name: Adamatzky, Andrew
Publisher: name: arXiv
Year: 2008
Subjects: subject: Robotics (cs.RO)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Plasmodium of Physarym polycephalum is an ideal biological substrate for implementing concurrent and parallel computation, including combinatorial geometry and optimization on graphs. We report results of scoping experiments on Physarum computing in conditions of minimal friction, on the water surface. We show that plasmodium of Physarum is capable for computing a basic spanning trees and manipulating of light-weight objects. We speculate that our results pave the pathways towards design and implementation of amorphous biological robots.
description: Submitted to Int J Intelligent and Robotic Systems, February 2008
An estimation of single and double diffractive heavy flavour production in hadron-hadron colliders
Creators: name: Machado, M. V. T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Results from a phenomenological analysis for diffractive hadroproduction of heavy flavors at high energies are reported. Diffractive production of charm, bottom and top are calculated using Regge factorization, taking into account recent experimental determination of the diffractive parton density functions in Pomeron by the H1 Collaboration at DESY-HERA. In addition, multiple-Pomeron corrections are considered through the rapidity gap survival probability factor. We give numerical predictions for single diffractive as well as double Pomeron exchange (DPE) cross sections, which agree with the available data for diffractive production of charm and beauty. We make estimates which could be compared to future measurements at the LHC.
description: 6 pages, 4 figures and 1 table. Version to be published in Physical Review D
The Arcminute Microkelvin Imager
Creators: name: Consortium, AMI
name: :
name: Zwart, J. T. L.
name: Barker, R. W.
name: Biddulph, P.
name: Bly, D.
name: Boysen, R. C.
name: Brown, A. R.
name: Clementson, C.
name: Crofts, M.
name: Culverhouse, T. L.
name: Czeres, J.
name: Dace, R. J.
name: Davies, M. L.
name: D'Alessandro, R.
name: Doherty, P.
name: Duggan, K.
name: Ely, J. A.
name: Felvus, M.
name: Feroz, F.
name: Flynn, W.
name: Franzen, T. M. O.
name: Geisbüsch, J.
name: Génova-Santos, R.
name: Grainge, K. J. B.
name: Grainger, W. F.
name: Hammett, D.
name: Hills, R. E.
name: Hobson, M. P.
name: Holler, C. M.
name: Hurley-Walker, N.
name: Jilley, R.
name: Jones, M. E.
name: Kaneko, T.
name: Kneissl, R.
name: Lancaster, K.
name: Lasenby, A. N.
name: Marshall, P. J.
name: Newton, F.
name: Norris, O.
name: Northrop, I.
name: Odell, D. M.
name: Pober, J. C.
name: Pooley, G. G.
name: Quy, V.
name: Rodríguez-Gonzálvez, C.
name: Saunders, R. D. E.
name: Scaife, A. M.
name: Schofield, J.
name: Scott, P. F.
name: Shaw, C.
name: Shimwell, T. W.
name: Smith, H.
name: Taylor, A. C.
name: Titterington, D. J.
name: Velić, M.
name: Waldram, E. M.
name: West, S.
name: Wood, B. A.
name: Yassin, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Arcminute Microkelvin Imager is a pair of interferometer arrays operating with six frequency channels spanning 13.9-18.2 GHz, with very high sensitivity to angular scales 30''-10'. The telescope is aimed principally at Sunyaev-Zel'dovich imaging of clusters of galaxies. We discuss the design of the telescope and describe and explain its electronic and mechanical systems.
description: 15 pages, 13 figures. Submitted to MNRAS
Additional file 1 of Estimating cutoff values for diagnostic tests to achieve target specificity using extreme value theory
Creators: name: Pugh, Sierra
name: Fosdick, Bailey K.
name: Nehring, Mary
name: Gallichotte, Emily N.
name: VandeWoude, Sue
name: Wilson, Ander
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. See the online Supplementary Materials for technical appendices and additional results.
The history of Angelina County
Creators: name: Boon, Effie
Publisher: name: The University of Texas at Austin
Year: 1937
Subjects: subject: Angelina County (Tex.)--History

description: In this paper the writer has endeavored to give the geographical setting of Angelina County and to follow the gradual development of the county from the first grant of land issued to the present industrial period. The writer has searched books, county records, state records, maps, land files, newspapers, and magazines and has interviewed many people in order to secure the data used. An attempt has been made to select the outstanding features in the development of the county from 1797 to 1937
Effect of test design on impact response of alumina bars
Creators: name: Beno, Tim Andrew
Publisher: name: The University of Texas at Austin
Year: 2004
Subjects: Alumina ceramic
Graded density impactors

description: Investigation of alumina ceramic has yet to fully characterize this material in high strain rate applications. Experiments completed for this research focus on accurately measuring the dynamic response of alumina. Bar impact tests are conducted on alumina types AD995 and AD998. Baseline experiments, graded density impactor experiments, and impact zone confinement experiments are three versions of the bar impact test performed. Manganin gauges and high-speed photographs are used for diagnostics. Test design had a large effect on alumina impact response. Results of baseline experiments gave strength values of 3.6 GPa for both AD995 and AD998 while impact zone confinement experiments recorded values as high as 5.1 GPa for AD998. Post fracture strength was 2 GPa.
Majorana zero modes, unconventional real-complex transition and mobility edges in a one-dimensional non-Hermitian quasi-periodic lattice
Creators: name: Cheng, Shujie
name: Xianlong, Gao
Publisher: name: arXiv
Year: 2021
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this paper, a one-dimensional non-Hermitian quasiperiodic $p$-wave superconductor without $\mathcal{PT}$-symmetry is studied. By analyzing the spectrum, we discovered there still exists real-complex energy transition even if the inexistence of $\mathcal{PT}$-symmetry breaking. By the inverse participation ratio, we constructed such a correspondence that pure real energies correspond to the extended states and complex energies correspond to the localized states, and this correspondence is precise and effective to detect the mobility edges. After investigating the topological properties, we arrive at a fact that the Majorana zero modes in this system are immune to the non-Hermiticity.
description: 9 pages, 7 figures; an invited paper to Chinese Physics B, special issue: Non-Hermitian Physics
Relation-aware Hierarchical Attention Framework for Video Question Answering
Creators: name: Li, Fangtao
name: Bai, Ting
name: Cao, Chenyu
name: Liu, Zihe
name: Yan, Chenghao
name: Wu, Bin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Video Question Answering (VideoQA) is a challenging video understanding task since it requires a deep understanding of both question and video. Previous studies mainly focus on extracting sophisticated visual and language embeddings, fusing them by delicate hand-crafted networks. However, the relevance of different frames, objects, and modalities to the question are varied along with the time, which is ignored in most of existing methods. Lacking understanding of the the dynamic relationships and interactions among objects brings a great challenge to VideoQA task. To address this problem, we propose a novel Relation-aware Hierarchical Attention (RHA) framework to learn both the static and dynamic relations of the objects in videos. In particular, videos and questions are embedded by pre-trained models firstly to obtain the visual and textual features. Then a graph-based relation encoder is utilized to extract the static relationship between visual objects. To capture the dynamic changes of multimodal objects in different video frames, we consider the temporal, spatial, and semantic relations, and fuse the multimodal features by hierarchical attention mechanism to predict the answer. We conduct extensive experiments on a large scale VideoQA dataset, and the experimental results demonstrate that our RHA outperforms the state-of-the-art methods.
description: 9 pages, This paper is accepted by ICMR 2021
Current constraints on interacting holographic dark energy
Creators: name: Wu, Qiang
name: Gong, Yungui
name: Wang, Anzhong
name: Alcaniz, J. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Although there is mounting observational evidence that the cosmic expansion is undergoing a late-time acceleration, the physical mechanism behind such a phenomenon is yet unknown. In this paper, we investigate a holographic dark energy (HDE) model with interaction between the components of the dark sector in the light of current cosmological observations. We use both the new \emph{gold} sample of 182 type Ia supernovae (SNe Ia) and the 192 SNe Ia ESSENCE data, the baryon acoustic oscillation measurement from the Sloan Digital Sky Survey and the shift parameter from the three-year Wilkinson Microwave Anisotropy Probe data. In agreement with previous results, we show that these observations suggest a very weak coupling or even a noninteracting HDE. The phantom crossing behavior in the context of these scenarios is also briefly discussed.
description: revtex4, three figures. Last version to appear in Physics Letters B
Gravitational Leptogenesis in Bounce Cosmology
Creators: name: Barrie, Neil D.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate whether successful Gravitational Leptogenesis can take place during an Ekpyrotic contraction phase. Two possible paths by which this can occur are coupling the Ekpyrotic scalar to a gravitational Chern-Simons term, or to a $ U(1) $ gauge field Chern-Simons term. These couplings lead to the production of chiral gravitational waves, which generate a lepton number asymmetry through the gravitational-lepton number anomaly. This lepton asymmetry is subsequently reprocessed by equilibrium sphaleron processes to produce a baryon asymmetry. We find successful Gravitational Leptogenesis to be possible in Ekpyrotic bounce cosmologies through both of these mechanisms.
description: 31 pages, 17 figures
Extreme floods in the Pacific coastal region
Creators: name: Melone, Anthony Michael
Publisher: name: University of British Columbia
Year: 2010

description: The research program developed hydrograph procedures for estimation of extreme rain-on-snow floods on ungauged watersheds in the Pacific coastal region. A multi-disciplinary investigation was undertaken encompassing the areas of hydrometeorology, snow hydrology and hydrologic modelling. Study components include assessment of flood producing mechanisms in the coastal region; analysis of regional rainfall characteristics for input to a hydrograph model; examination of the role of a snowpack during extreme events; and application of a hydrograph model. Based on an assessment of atmospheric processes which affect climate, examination of historical flood data, and analysis of flood frequency, it is shown that the area bounded by the crests of the coastal mountains forms a hydrologic region with similar flood characteristics. Extreme floods in the coastal region are rainfall-induced, either as runoff from rainfall-only or as a combination of rain and snowmelt. Recorded storm rainfall along the coast was examined to determine whether regional characteristics could be identified from available data even though the magnitude of rainfall varies between stations. Multi-storm intensity data available from Atmospheric Environment Service and rainfall intensities occurring within single storms that were identified as part of this study were analyzed. Results show that ratios of shorter duration intensities to the 24-hour rainfall are in a relatively narrow range in the coastal region for both multi and single storm intenstity data, and this range set limits on the hourly intensities that need to be considered as input rainfall data to a hydrograph model. With regard to basin response to extreme rain-on-snow, available literature suggests that for a ripe snowpack, development of an internal drainage network within the snowpack is the dominant routing mechanism for liquid water. Consequences of this conclusion on hydrograph procedures are that a watershed undergoes a transition from snow-controlled to more terrain-controlled water movement and basin storage characteristics approach conditions which would occur on the same basin without a snowcover. Lag and route hydrograph techniques were investigated to assess whether this method can be applied to rain-on-snow floods. Results from analysis of two rain-on-snow floods suggest this procedure can be applied when the following methodology is adopted: 1) estimate travel time through the basin from channelized and overland flow considerations; 2) select a storage coefficient which simulates basin response; 3) take water inputs as the sum of snowmelt and rainfall; and 4) consider there are no losses to groundwater. The combination of results from each study component provides a methodology for estimating input rainfall data and for undertaking hydrograph analysis for extreme rain-on-snow floods in the mountainous Pacific coastal region.
Triangularization of a Jordan Algebra of Schatten Operators
Creators: name: Kennedy, Matthew
Publisher: name: arXiv
Year: 2007
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47A15, 17C65

description: We show that a Jordan algebra of compact quasinilpotent operators which contains a nonzero trace class operator has a common invariant subspace. As a consequence of this result, we obtain that a Jordan algebra of quasinilpotent Schatten operators is simultaneously triangularizable.
The Mass Assembly History of Spheroidal Galaxies: Did Newly-Formed Systems Arise Via Major Mergers?
Creators: name: Bundy, K.
name: Treu, T.
name: Ellis, R. S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We examine the properties of a morphologically-selected sample of 0.4
description: Accepted to ApJL; New version corrects the Millennium merger predictions--further details at http://www.astro.utoronto.ca/~bundy/millennium/
Semileptonic $Ξ_c$ baryon decays in the light cone QCD sum rules
Creators: name: Aliev, T. M.
name: Bilmis, S.
name: Savci, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Form factors of the weak $Ξ_c \to Ξ(Λ)$ transitions are calculated within the light cone QCD sum rules. The pollutions coming from the contribution of the negative parity $Ξ_c^*$ baryon is eliminated by considering the combinations of sum rules corresponding to the different Lorentz structures. Having obtained the form factors, the branching ratios of the $Ξ_c \to Ξ(Λ) \ell ν$ decays are also calculated, and our predictions are compared with the results of other approaches as well as the measurements done by BELLE and ALICE Collaborations.
The unbearable lightness of charged gravitini
Creators: name: Dall'Agata, Gianguido
name: Emelin, Maxim
name: Farakos, Fotis
name: Morittu, Matteo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We prove that charged gravitini cannot have parametrically small or vanishing Lagrangian mass in de Sitter vacua of extended supergravity while respecting the magnetic weak gravity conjecture. This places large classes of de Sitter solutions of gauged supergravity in the swampland, including all known stable solutions of the N=2 theory. We illustrate this result by analyzing a variety of de Sitter critical points of N=2 matter-coupled supergravity that also include new stable de Sitter solutions. Our results provide concrete evidence that (quasi) de Sitter with charged light gravitini should belong to the swampland, which also strongly resonates with the festina lente bound.
description: 43 pages, 2 figures, v2, minor corrections and references added
Spectral and timing properties of the black hole candidate X1755-338 observed in 1989-1995
Creators: name: Yamauchi, Shigeo
name: Maeda, Sakiho
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report results of an analysis of the black hole (BH) candidate source X1755-338 in 1989, 1990, and 1991 with Ginga, and in 1995 with ASCA. The spectra were well represented by a model consisting of a soft thermal emission from an accretion disk and a hard X-ray tail. The normalization of the multi-color disk model, relating to the inner disk radius, was similar to each other. The unabsorbed X-ray fluxes from the disk component in the 0.01-10 keV band were estimated to be 1.3x10^{-9}, 3.0x10^{-9}, 9.8x10^{-10}, and 2.4x10^{-9} erg s^{-1} cm^{-2} in 1989, 1990, 1991, and 1995, respectively, and are proportional to kT_{in}^4, where kT_{in} is a temperature at the inner disk radius. Based on the standard accretion disk model for a non-rotating BH, our results suggest either a small BH mass or a large inclination angle. Otherwise, X1755-338 is a rotating BH. The hard X-ray intensity was found to be variable, while the soft X-ray intensity was stable. Although the previous work showed the existence of an iron line at 6.7 keV, no clear iron line feature was found in all the spectra. We infer that most of the iron line flux reported in the previous work was due to contamination of the Galactic diffuse X-ray emission.
description: Accepted for publication in PASJ
Evidence of the role of contacts on the observed electron-hole asymmetry in graphene
Creators: name: Huard, B.
name: Stander, N.
name: Sulpizio, J. A.
name: Goldhaber-Gordon, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We perform electrical transport measurements in graphene with several sample geometries. In particular, we design ``invasive'' probes crossing the whole graphene sheet as well as ``external'' probes connected through graphene side arms. The four-probe conductance measured between external probes varies linearly with charge density and is symmetric between electron and hole types of carriers. In contrast measurements with invasive probes give a strong electron-hole asymmetry and a sub-linear conductance as a function of density. By comparing various geometries and types of contact metal, we show that these two observations are due to transport properties of the metal/graphene interface. The asymmetry originates from the pinning of the charge density below the metal, which thereby forms a p-n or p-p junction depending on the polarity of the carriers in the bulk graphene sheet. Our results also explain part of the sub-linearity observed in conductance as a function of density in a large number of experiments on graphene, which has generally been attributed to short-range scattering only.
description: 4 pages, 5 figures, Supplementary information will come soon
The Identification of BHB Stars Using GALEX and other photometry
Creators: name: Kinman, T. D.
name: Salim, S.
name: Clewley, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Halo samples that have no kinematic bias have been successfully isolated by photometric observations. We show that the near-UV (NUV) magnitude of the GALEX All-Sky Survey can be used, together with Johnson BV magnitudes in a (NUV-V)_0 vs. (B-V)_0 plot, to distinguish blue horizontal branch (BHB) from other A stars of the same B-V color for 12
description: Accepted for publication in ApJ Letters
Strong diamagnetic response of metamaterials
Creators: name: Economou, E. N.
name: Koschny, Th.
name: Soukoulis, C. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate that there is a strong diamagnetic response of metamaterials, consisting of open or closed split ring resonators (SRRs). Detailed numerical work shows that for densely packed SRRs the magnetic permeability, $μ(ω)$, does not approach unity, as expected for frequencies lower and higher than the resonance frequency, $ω_0$. Below $ω_0$, $μ(ω)$ gives values ranging from 0.9 to 0.6 depending of the width of the metallic ring, while above $ω_0$, $μ(ω)$ is close to 0.5. Closed rings have $μ\approx 0.5$ over a wide frequency range independently of the width of the ring. A simple model that uses the inner and outer current loop of the SRRs can easily explain theoretically this strong diamagnetic response, which can be used in magnetic levitation.
Underwater dual-magnification imaging for automated lake plankton monitoring
Creators: name: Merz, E.
name: Kozakiewicz, T.
name: Reyes, M.
name: Ebi, C.
name: Isles, P.
name: Baity-Jesi, M.
name: Roberts, P.
name: Jaffe, J. S.
name: Dennis, S.
name: Hardeman, T.
name: Stevens, N.
name: Lorimer, T.
name: Pomati, F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We present an approach for automated in-situ monitoring of phytoplankton and zooplankton communities based on a dual magnification dark-field imaging microscope/camera. We describe the Dual Scripps Plankton Camera (DSPC) system and associated image processing, and assess its capabilities in detecting and characterizing plankton species of different size and taxonomic categories, and in measuring their abundances in both laboratory and field applications. In the laboratory, body size and abundance estimates by the DSPC significantly and robustly scale with the same measurements derived by traditional microscopy. In the field, a DSPC installed permanently at 3 m depth in Lake Greifensee (Switzerland), delivered images of plankton individuals, colonies, and heterospecific aggregates without disrupting natural arrangements of interacting organisms, their microenvironment or their behavior at hourly timescales. The DSPC was able to track the dynamics of taxa in the size range between ~10 $μ$m to ~ 1 cm, covering virtually all the components of the planktonic food web (including parasites and potentially toxic cyanobacteria). Comparing data from the field-deployed DSPC to traditional sampling and microscopy revealed a general overall agreement in estimates of plankton diversity and abundances, despite imaging limitations in detecting small phytoplankton species and rare and large zooplankton taxa (e.g. carnivorous zooplankton). The most significant disagreements between traditional methods and the DSPC resided in the measurements of community properties of zooplankton, organisms that are heterogeneously distributed spatially and temporally, and whose demography appeared to be better captured by automated imaging. Time series collected by the DSPC depicted ecological succession patterns, algal bloom dynamics and circadian fluctuations with a temporal frequency and morphological [continues...]
description: 49 pages
Music Medicine and Music Therapy in Austria
Creators: name: Brandes, Vera
name: Tangian, Zahra
name: Ficher, Cludia
Publisher: name: Faculty of Fine and Applied Arts, Chulalongkorn University
Year: 2013
Subjects: Social Inclusion, Arts Management, Theater Workshop, Urban Slum, Self-Empowerment, Nang Loeng Community

description: -, 6, Journal of Urban Culture Research