cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Purely infinite C*-algebras: ideal-preserving zero homotopies
Creators: name: Kirchberg, Eberhard
name: Rordam, Mikael
Publisher: name: arXiv
Year: 2003
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L35, 46L05, 46L80

description: We show that if A is a separable, nuclear, O_infty-absorbing (or strongly purely infinite) C*-algebra, which is homotopic to zero in an ideal-system preserving way, then A is the inductive limit of C*-algebras of the form M_k(C_0(G,v)), where G is a finite graph (and C_0(G,v) is the algebra of continuous functions on G that vanish at a distinguished point v in G). We show further that any separable, nuclear, stable, O_2-absorbing C*-algebra is isomorphic to a crossed product of a C*-algebra D with the integers by an action alpha, where D is an inductive limit of C*-algebras of the form M_k(C_0(G,v)) (and D is O_2-absorbing and homotopic to zero in an ideal-system preserving way).
description: 42 pages
THEORETICAL CRITERIA AND A PROPOSED EMPIRICAL METHOD FOR COMPUTING HISTORICAL RISK MEASURES
Creators: name: Calvin, Linda S.
name: Mittelhammer, Ron C.
name: Young, Douglas L.
name: Calvin, Linda S.
name: Mittelhammer, Ron C.
name: Young, Douglas L.
Publisher: name: Unknown
Year: 1980
Subjects: Risk and Uncertainty

description: Suggested criteria for evaluating the appropriateness of historical risk measures are presented. A continuously adjusted weighted moving average (CAWMA) method for calculating historical risk is introduced, and compared to past historical risk computation procedures both in terms of the suggested criteria, and in the context of specific empirical examples.
A local density functional for the short-range part of the electron-electron interaction
Creators: name: Zecca, Lorenzo
name: Gori-Giorgi, Paola
name: Moroni, Saverio
name: Bachelet, Giovanni B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Motivated by recent suggestions --to split the electron-electron interaction into a short-range part, to be treated within the density functional theory, and a long-range part, to be handled by other techniques-- we compute, with a diffusion Monte Carlo method, the ground-state energy of a uniform electron gas with a modified, short-range-only electron-electron interaction $\erfc(μr)/r$, for different values of the cutoff parameter $μ$ and of the electron density. After deriving some exact limits, we propose an analytic representation of the correlation energy which accurately fits our Monte Carlo data and also includes, by construction, these exact limits, thus providing a reliable ``short-range local-density functional''.
description: 7 pages, 3 figures
Effects of Rotation on the Spectra of Brown Dwarfs
Creators: name: Lipatov, Mikhail
name: Brandt, Timothy D.
name: Batalha, Natasha E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Measured rotational speeds of giant planets and brown dwarfs frequently constitute appreciable fractions of the breakup limit, resulting in centrifugal expansion of these objects at the equator. According to models of internal energy transport, this expansion ought to make the poles of a rotator significantly hotter than the equator, so that inclination of the rotational axis greatly affects both spectral shape and total flux. In this article, we explore the dependence of a substellar object's observables on its rotational speed and axis inclination. To do so, we combine PICASO (a Planetary Intensity Code for Atmospheric Spectroscopy Observations) with software PARS (Paint the Atmospheres of Rotating Stars). The former computer program models radiative transfer within plane-parallel planetary atmospheres, while the latter computes disk-integrated spectra of centrifugally deformed gaseous masses. We find that the specific flux of a typical fast-rotating brown dwarf can increase by as much as a factor of 1.5 with movement from an equator-on to a pole-on view. On the other hand, the distinctive effect of rotation on spectral shape increases toward the equator-on view. The latter effect also increases with lower effective temperature. The bolometric luminosity estimate for a typical fast rotator at extreme inclinations has to be adjusted by as much as about 20% due to the anisotropy of the object's observed flux. We provide a general formula for the calculation of the corresponding adjustment factor in terms of rotational speed and inclination.
description: 11 pages, 4 figures, MNRAS accepted
Acanthoderes (Acanthoderes) parva Chemsak & Hovore 2002
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Acanthoderes
Acanthoderes parva

description: 23. Acanthoderes (Acanthoderes) parva Chemsak & Hovore, 2002
 Type locality — Guatemala, Izabal: 25 km SE Morales. (EMEC). Distribution — Guatemala. Acanthoderes parva Chemsak & Hovore, 2002b: 3, fig. 2.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Beneficial bacteria associated with Mimosa pudica and potential to sustain plant growth-promoting traits under heavy metals stress
Creators: name: Saidu Abdullahi
name: Hazzeman Haris
name: Kamarul Zaman Zarkasi
name: Hamzah Ghazali Amir
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
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: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: The study was carried out to isolate and screen indigenous rhizobacteria associated with Mimosa pudica in ex-tin mining soil with the potential to sustain plant growth-promoting (PGP) traits under heavy metals (HM) stress condition. A total of 58 bacterial strains were isolated, screened for HM (As, Pb and Cd) tolerance and for various PGP traits. Production of PGP substances by selected isolates under influence of HM was further evaluated. The results revealed 5 isolates as HM tolerant (2M1, 3M1 and 3M3 as Pb tolerant; 3M3 and 4M9 as Cd tolerant while 6M2 as As tolerant) and possessing all tested PGP traits. The isolates were identified based on 16S rRNA as Bacillus cereus 2M1, Bacillus cereus 3M1, Bacillus pseudomycoides 3M3, Enterobacter tabaci 4M9 and Pseudomonas plecoglossicida 6M2. Tested isolates sustained PGP traits and withstand high HM stress conditions, particularly isolates 6M2 Pseudomonas plecoglossicida, 4M9 Enterobacter tabaci and 2M1 Bacillus cereus (6M2 had the overall best performance compared to other isolates). The strains are therefore expected to be the major contributing factors for survival of Mimosa pudica which were endemic in the abandoned mining sites and provide basis for using indigenous bacteria for bioremediation of HM contaminated soils.
Discovery of a Solitaire Dwarf Galaxy in the APPLES Survey
Creators: name: Pasquali, A.
name: Larsen, S.
name: Ferreras, I.
name: Gnedin, O. Y.
name: Malhotra, S.
name: Rhoads, J. E.
name: Pirzkal, N.
name: Walsh, J. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: During the APPLES parallel campaign, the HST Advanced Camera for Surveys has resolved a distant stellar system, which appears to be an isolated dwarf galaxy. It is characterized by a circularly symmetric distribution of stars with an integrated magnitude m(F775W) = 20.13 +- 0.02, a central surface brightness of ~ 21.33 +- 0.18 mag/arcsec^2 and a half-light radius of ~ 1.8 arcsec. The ACS and VLT spectra show no evidence of ionized gas and appear dominated by a 3 Gyr old stellar population. The OB spectral type derived for two resolved stars in the grism data and the systemic radial velocity of ~ 670 km/s measured from the VLT data give a fiducial distance of ~ 9 +- 2 Mpc. These findings, with the support of the spatial morphology, would classify the system among the dwarf spheroidal (dSph) galaxies. Following the IAU rules, we have named this newly discovered galaxy APPLES 1. An intriguing peculiarity of APPLES 1 is that the properties (age and metallicity) of the stellar content so far detected are similar to those of dSph galaxies in the Local Group, where star formation is thought to be driven by galaxy interactions and mergers. Yet, APPLES 1 seems not to be associated with a major group or cluster of galaxies. Therefore, APPLES 1 could be the first example of a field dSph galaxy with self-sustained and regulated star formation and, therefore, would make an interesting test case for studies of the formation and evolution of unperturbed dSph galaxies.
description: 46 pages, 13 figures, AJ accepted
Machine-learning classification of astronomical sources: estimating F1-score in the absence of ground truth
Creators: name: Humphrey, A.
name: Kuberski, W.
name: Bialek, J.
name: Perrakis, N.
name: Cools, W.
name: Nuyttens, N.
name: Elakhrass, H.
name: Cunha, P. A. C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Machine-learning based classifiers have become indispensable in the field of astrophysics, allowing separation of astronomical sources into various classes, with computational efficiency suitable for application to the enormous data volumes that wide-area surveys now typically produce. In the standard supervised classification paradigm, a model is typically trained and validated using data from relatively small areas of sky, before being used to classify sources in other areas of the sky. However, population shifts between the training examples and the sources to be classified can lead to `silent' degradation in model performance, which can be challenging to identify when the ground-truth is not available. In this Letter, we present a novel methodology using the NannyML Confidence-Based Performance Estimation (CBPE) method to predict classifier F1-score in the presence of population shifts, but without ground-truth labels. We apply CBPE to the selection of quasars with decision-tree ensemble models, using broad-band photometry, and show that the F1-scores are predicted remarkably well (MAPE ~ 10%; R^2 = 0.74-0.92). We discuss potential use-cases in the domain of astronomy, including machine-learning model and/or hyperparameter selection, and evaluation of the suitability of training datasets for a particular classification problem.
description: 5.5 pages, 2 figures, accepted for publication in MNRAS Letters
Additional file 1 of Comparison of pathway and gene-level models for cancer prognosis prediction
Creators: name: Xingyu Zheng
name: Amos, Christopher
name: H. Frost
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Supplementary results of the simulation studies for all TCGA cohorts.
Rural Cooperatives Magazine, January/February 2005
Creators: name: Merlo, Catherine
name: Jorgenson, Nancy
name: Holland, Steven J.
name: King, Robert
name: Zuell, Kimberly
name: Ciccone, Janet
name: Campbell, Dan
name: Thompson, Stephen
name: Merlo, Catherine
name: Jorgenson, Nancy
name: Holland, Steven J.
name: King, Robert
name: Zuell, Kimberly
name: Ciccone, Janet
name: Campbell, Dan
name: Thompson, Stephen
Publisher: name: Unknown
Year: 2005
Subjects: Agribusiness
Community/Rural/Urban Development

description: Features- Flying the coop; Leaving home?; Co-op stock exchange; Of necessity & invention; Charley’s Angels; Retail co-ops advised to foster member identification, not force conformity; Paper or plastic?
First- and Second Order Phase Transitions in the Holstein-Hubbard Model
Creators: name: Koller, W.
name: Meyer, D.
name: Ono, Y.
name: Hewson, A. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate metal-insulator transitions in the Holstein-Hubbard model as a function of the on-site electron-electron interaction U and the electron-phonon coupling g. We use several different numerical methods to calculate the phase diagram, the results of which are in excellent agreement. When the electron-electron interaction U is dominant the transition is to a Mott-insulator; when the electron-phonon interaction dominates, the transition is to a localised bipolaronic state. In the former case, the transition is always found to be second order. This is in contrast to the transition to the bipolaronic state, which is clearly first order for larger values of U. We also present results for the quasiparticle weight and the double-occupancy as function of U and g.
description: 6 pages, 5 figures
Turbulence and Transport During Guide-Field Reconnection at the Magnetopause
Creators: name: Price, L.
name: Swisdak, M
name: Drake, J. F.
name: Graham, D. B.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Space Physics (physics.space-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We analyze the development and influence of turbulence in three-dimensional particle-in-cell simulations of guide-field magnetic reconnection at the magnetopause with parameters based on observations of an electron diffusion region by the Magnetospheric Multiscale (MMS) mission. Along the separatrices the turbulence is a variant of the lower hybrid drift instability (LHDI) that produces electric field fluctuations with amplitudes much greater than the reconnection electric field. The turbulence controls the scale length of the density and current profiles while enabling significant transport across the magnetopause despite the electrons remaining frozen-in to the magnetic field. Near the X-line the electrons are not frozen-in and the turbulence, which differs from the LHDI, makes a significant net contribution to the generalized Ohm's law through an anomalous viscosity. The characteristics of the turbulence and associated particle transport are consistent with fluctuation amplitudes in the MMS observations. However, for this event the simulations suggest that the MMS spacecraft were not close enough to the core of the electron diffusion region to identify the region where anomalous viscosity is important.
Acanthoderes (Acanthoderes) penrosei Chemsak & Hovore 2002
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Acanthoderes
Acanthoderes penrosei

description: 25. Acanthoderes (Acanthoderes) penrosei Chemsak & Hovore, 2002
 Type locality — Panama, Panama: Bayano, 26 km W Ipeti. (EMEC). Distribution — Panama. Acanthoderes penrosei Chemsak & Hovore, 2002b: 4, fig. 3.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Additional file 5 of Large-scale kinetic metabolic models of Pseudomonas putida KT2440 for consistent design of metabolic engineering strategies
Creators: name: Tokic, Milenko
name: Hatzimanikatis, Vassily
name: Ljubisa Miskovic
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: Computational Biology

description: Additional file 5: Figure S7. Distribution of the control coefficients of cytosolic NADPH with respect to most important enzymes in the stress conditions.
Hard Lefschetz theorem for valuations and related questions of integral geometry
Creators: name: Alesker, Semyon
Publisher: name: arXiv
Year: 2003
Subjects: subject: Metric Geometry (math.MG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics

description: We study the properties of the multiplicative structure on valuations on convex sets. We prove a new version of the hard Lefschetz theorem for even translation invariant continuous valuations, and discuss related problems of integral geometry. Then we formulate a conjectural analogue of this result for odd valuations.
description: 14 pages, revised version
Rural Cooperatives Magazine, January/February 2006
Creators: name: Campbell, Dan
name: Thompson, Stephen
name: Pleasent, Bruce
name: Yales, Scott
name: Chesnick, David S.
name: Livington, Jane
name: Campbell, Dan
name: Thompson, Stephen
name: Pleasent, Bruce
name: Yales, Scott
name: Chesnick, David S.
name: Livington, Jane
Publisher: name: Unknown
Year: 2006
Subjects: Agribusiness
Community/Rural/Urban Development

description: Features- Making the Grade; Fruits of Their Labor; Voice of experience: co-ops are resilient; Trade, Farm Bill challenges eyed at dairy conference; Foreign Affairs; Largest 100 ag co-ops post strong margins in ‘04; An Art & Science
Critical behavior of the 3-state Potts model on Sierpinski carpet
Creators: name: Hsiao, Pai-Yi
name: Monceau, Pascal
Publisher: name: arXiv
Year: 2003
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the critical behavior of the 3-state Potts model, where the spins are located at the centers of the occupied squares of the deterministic Sierpinski carpet. A finite-size scaling analysis is performed from Monte Carlo simulations, for a Hausdorff dimension $d_{f}$ $\simeq 1.8928$. The phase transition is shown to be a second order one. The maxima of the susceptibility of the order parameter follow a power law in a very reliable way, which enables us to calculate the ratio of the exponents $γ/ν$. We find that the scaling corrections affect the behavior of most of the thermodynamical quantities. However, the sequence of intersection points extracted from the Binder's cumulant provides bounds for the critical temperature. We are able to give the bounds for the exponent $1/ν$ as well as for the ratio of the exponents $β/ν$, which are compatible with the results calculated from the hyperscaling relation.
description: 13 pages, 4 figures
Additional file 6 of Large-scale kinetic metabolic models of Pseudomonas putida KT2440 for consistent design of metabolic engineering strategies
Creators: name: Tokic, Milenko
name: Hatzimanikatis, Vassily
name: Ljubisa Miskovic
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: Additional file 6: Figure S8. Distribution of the control coefficients of pyruvate carboxylase (PC) with respect to most important enzymes in the stress conditions.
The peculiar emission line spectra of core-Extremely Red BOSS Quasars at $z\sim$2-3: orientation and/or evolution?
Creators: name: Martin, Montse Villar
name: Perna, Michele
name: Humphrey, Andrew
name: Rodriguez, Nieves Castro
name: Binette, Luc
name: Gonzalez, Pablo Perez
name: Mateos, Silvia
name: Lavers, Antonio Cabrera
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Core-extremely red quasars (core-ERQ) have been proposed to represent an intermediate evolutionary phase in which a heavily obscured quasar is blowing out the circumnuclear interstellar medium with very energetic outflows prior to becoming an optical quasar. We revise the general UV and optical emission line properties of core-ERQ in the context of the AGN orientation-based unification scenario. We use diagnostic diagrams based on ultraviolet (UV) emission line ratios and UV-optical line kinematic information to compare the physical and kinematic gas properties of core-ERQ with those of other luminous narrow and broad line AGN. In particular, we provide a revised comparison of the [OIII] kinematics in 21 core-ERQ with other samples of quasars matched in luminosity with the aim of evaluating whether core-ERQ host the most extreme [OIII] outflows. The UV line ratios suggest that the physical properties (for instance, density, metallicity) of the ionised gas in core-ERQ are similar to those observed in the BLR of blue Nitrogen-loud QSOs. The [OIII] outflow velocities of core-ERQ are, on average, consistent with those of very luminous blue QSO1, although extreme outflows are much more frequent in core-ERQ. These similarities can be explained in the context of the AGN unification model, assuming that core-ERQ are viewed with an intermediate orientation between type 2 (edge-on) and type 1 (face-on) QSOs. We propose that core-ERQ are very luminous but otherwise normal quasars viewed at an intermediate orientation. Such orientation allows a direct view of the outer part of the large BLR, from which core-ERQ UV emission originates; the extreme [OIII] outflow velocities are instead a consequence of the very high luminosity of core-ERQ.
description: 23 pages, 10 figures. Accepted for publication in A&A
Additional file 4 of Large-scale kinetic metabolic models of Pseudomonas putida KT2440 for consistent design of metabolic engineering strategies
Creators: name: Tokic, Milenko
name: Hatzimanikatis, Vassily
name: Ljubisa Miskovic
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: Additional file 4: Figure S6. Distribution of the control coefficients of 6-phosphogluconate dehydratase (EDD)Â with respect to most important enzymes in the stress conditions.
Rural Cooperatives Magazine, January/February 2007
Creators: name: Lee-Woolf, Charlotte
name: Lykins, Ashley
name: Pitman, Lynn
name: Livington, Jane
name: Todd, Anne
name: Campbell, Dan
name: Chesnick, David S.
name: Liebrand, Carolyn
name: Lee-Woolf, Charlotte
name: Lykins, Ashley
name: Pitman, Lynn
name: Livington, Jane
name: Todd, Anne
name: Campbell, Dan
name: Chesnick, David S.
name: Liebrand, Carolyn
Publisher: name: Unknown
Year: 2007
Subjects: Agribusiness
Community/Rural/Urban Development

description: Features- Changing of the Guard; Billion-Pound Baby; King's Pansom; Renewable fuels industry rife with opportuniy for co-ops; Outside the box; Turning over a new leaf; Global 300 list reveals world's larget co-ops
Orbital Stability of Proposed NY Virginis Exoplanets
Creators: name: Mai, Xinyu
name: Mutel, Robert L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Er et al. (2021) recently proposed a two-planet solution to account for eclipse timing variations (ETVs) observed from the sdB binary NY Virginis. We tested the proposed planetary system for orbit stability using both numerical simulations and chaotic behavior analysis. The best-fit orbits, as well as those with parameters varying by the published uncertainty range in each parameter, were unstable on a timescale much less than the presumed lifetime of the PCEB phase ($\sim$100 Myr). suggesting that the proposed circumbinary companions fail to provide a complete explanation for the observed ETVs.
description: 4 pages, 3 figures
Detection of Pristine Circumstellar Material of the Cassiopeia A Supernova
Creators: name: Koo, Bon-Chul
name: Kim, Hyun-Jeong
name: Oh, Heeyoung
name: Raymond, John C.
name: Yoon, Sung-Chul
name: Lee, Yong-Hyun
name: Jaffe, Daniel T.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Cassiopeia A is a nearby young supernova remnant that provides a unique laboratory for the study of core-collapse supernova explosions. Cassiopeia A is known to be a Type IIb supernova from the optical spectrum of its light echo, but the immediate progenitor of the supernova remains uncertain. Here we report results of near-infrared, high-resolution spectroscopic observations of Cassiopeia A where we detected the pristine circumstellar material of the supernova progenitor. Our observations revealed a strong emission line of iron (Fe) from a circumstellar clump that has not yet been processed by the supernova shock wave. A comprehensive analysis of the observed spectra, together with an HST image, indicates that the majority of Fe in this unprocessed circumstellar material is in the gas phase, not depleted onto dust grains as in the general interstellar medium. This result is consistent with a theoretical model of dust condensation in material that is heavily enriched with CNO-cycle products, supporting the idea that the clump originated near the He core of the progenitor. It has been recently found that Type IIb supernovae can result from the explosion of a blue supergiant with a thin hydrogen envelope, and our results support such a scenario for Cassiopeia A.
description: 18 pages, 7 figures
Acanthoderes (Acanthoderes) ramirezi Chemsak & Hovore 2002
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Acanthoderes
Acanthoderes ramirezi

description: 27. Acanthoderes (Acanthoderes) ramirezi Chemsak & Hovore, 2002
Type locality — Mexico, Jalisco: Los Angeles Locos, 40 km SE Est. de Biol. (EMEC). Distribution — Mexico (Jalisco).
 Acanthoderes ramirezi Chemsak & Hovore, 2002b: 5, fig. 4.
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
The Cotton tensor in Riemannian spacetimes
Creators: name: Garcia, A.
name: Hehl, F. W.
name: Heinicke, C.
name: Macias, A.
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, the study of three-dimensional spaces is becoming of great interest. In these dimensions the Cotton tensor is prominent as the substitute for the Weyl tensor. It is conformally invariant and its vanishing is equivalent to conformal flatness. However, the Cotton tensor arises in the context of the Bianchi identities and is present in any dimension. We present a systematic derivation of the Cotton tensor. We perform its irreducible decomposition and determine its number of independent components for the first time. Subsequently, we exhibit its characteristic properties and perform a classification of the Cotton tensor in three dimensions. We investigate some solutions of Einstein's field equations in three dimensions and of the topologically massive gravity model of Deser, Jackiw, and Templeton. For each class examples are given. Finally we investigate the relation between the Cotton tensor and the energy-momentum in Einstein's theory and derive a conformally flat perfect fluid solution of Einstein's field equations in three dimensions.
description: 27 pages, revtex4
Acanthoderes (Acanthoderes) rufofemorata Aurivillius 1925
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Acanthoderes
Acanthoderes rufofemorata

description: 29. Acanthoderes (Acanthoderes) rufofemorata Aurivillius, 1925
Syntype localities — Bolivia. Southern Brazil. (NHRS). Distribution — Bolivia.
 Acanthoderes rufofemorata Aurivillius, 1925: 514, fig. 150.
 Acanthoderes (Acanthoderes) rufofemorata; Gilmour, 1965: 612 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Production of Scalar Higgs Bosons Associated with $Z^0$ Boson at the CERN LHC in the MSSM
Creators: name: Yang, Li Lin
name: Li, Chong Sheng
name: Liu, Jian Jun
name: Jin, Li Gang
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the associated production of a scalar Higgs boson ($h^0$ or $H^0$) with $Z^0$ boson in the minimal supersymmetric extension of the standard model (MSSM) at the CERN Large Hadron Collider (LHC), including the contributions from $b\bar{b}$ annihilation at the tree level and gluon fusion via quark and squark loops. We quantitatively analyze the total cross sections in the mSUGRA scenario. For the production of $h^0$ associated with $Z^0$, we find that in most of the parameter regions, the contributions from initial $b\bar{b}$ and $gg$ are at a level of one percent of the total cross section and therefore almost insignificant. For the production of $H^0$ associated with $Z^0$, the contributions from $b\bar{b}$ channel can be much larger than those from light quark initial states. Especially for large $\tanβ$, the increment can reach about one order of magnitude. Thus, when considering the associated production of $H^0$ and $Z^0$ at the LHC, the contributions from $b\bar{b}$ annihilation should be taken into account seriously.
description: 19 pages, 8 figures, RevTeX4; one reference added, minor changes, conclusion unchanged; Journal-ref added
Orbits and action changes during star-clump encounters responsible for the origin of exponential discs in dwarf galaxies
Creators: name: Wu, Jian
name: Struck, Curtis
name: Elmegreen, Bruce G.
name: D'Onghia, Elena
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Previous studies found that stellar scattering by massive clumps can lead to the formation of exponential profiles in galaxy discs, but details on how a star is moved around have not been fully explained. We use a GADGET-2 simulation where an exponential profile forms from an initially Gaussian disc in about 4 Gyr for a low-mass galaxy like a dwarf irregular. We find that nearly all large angular momentum changes of stars are caused by star-clump encounters with the closest approach less than 0.5 kpc. During star-clump encounters, stars may increase their random motions, resulting in an increase in the average radial and vertical actions of the whole stellar population. The angular momentum change and the radial action change of an individual star are influenced by the direction from which the star approaches a clump. A star initially at a higher galactic radius relative to the scattering clump usually gets pulled inwards and loses its angular momentum during the encounter, and one at a lower radius tends to shift outwards and gains angular momentum. The increase in the radial action is the largest if a star encounters a clump from the azimuthal direction, and is the smallest from a radial approach. The angular momentum change due to encounters has an inward bias when the clump profile has a steep radial decline, and a shallow decline can make the bias outwards. The stellar profile evolution towards an exponential seems to occur regardless of the direction of the bias.
description: 20 pages, 21 figures
Additional file 3 of Large-scale kinetic metabolic models of Pseudomonas putida KT2440 for consistent design of metabolic engineering strategies
Creators: name: Tokic, Milenko
name: Hatzimanikatis, Vassily
name: Ljubisa Miskovic
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Computational Biology

description: Additional file 3: Figure S5. Distribution of the control coeicients of 2-dehydro-3-deoxy-phosphogluconate aldolase (EDA) with respect to most important enzymes in the stress conditions.
Acanthoderes (Acanthoderes) satanas Bates 1880
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Acanthoderes
Acanthoderes satanas

description: 30. Acanthoderes (Acanthoderes) satanas Bates, 1880
Type locality — Peru, Chanchamayo. (MNHN). Distribution — Peru.
 Acanthoderes satanas Bates, 1880d: 58; Lameere, 1883: 66 (cat.).
 Acanthoderes (Acanthoderes) satanas; Aurivillius, 1923a: 385 (cat.).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Measurement of $\sin^2{2θ_{13}}$ by reactor experiments and its sensitivity
Creators: name: Yasuda, Osamu
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Reactor experiments offer a promising way to determine $θ_{13}$ and are free from parameter degeneracies in neutrino oscillations. It is described how reactor measurements of $\sin^22θ_{13}$ can be improved by a near-far detector complex. The experimental lower bound is derived on the sensitivity to $\sin^2{2θ_{13}}\gtrsim 0.02$ based on the rate analysis, and an idea is given which may enable us to circumvent this bound. It is shown that in the Kashiwazaki-Kariwa plan (KASKA) the sensitivity to $\sin^2{2θ_{13}}$ is approximately 0.02.
description: 8 pages, 2 sets of figures, uses ws-procs9x6.cls. Talk presented at Coral Gables Conference On Lauching Of Belle Epoque In High-Energy Physics And Cosmology (CG 2003), 17-21 Dec 2003, Ft. Lauderdale, Florida
Solving simple quaternionic differential equations
Creators: name: De Leo, S.
name: Ducati, G. C.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The renewed interest in investigating quaternionic quantum mechanics, in particular tunneling effects, and the recent results on quaternionic differential operators motivate the study of resolution methods for quaternionic differential equations. In this paper, by using the real matrix representation of left/right acting quaternionic operators, we prove existence and uniqueness for quaternionic initial value problems, discuss the reduction of order for quaternionic homogeneous differential equations and extend to the non-commutative case the method of variation of parameters. We also show that the standard Wronskian cannot uniquely be extended to the quaternionic case. Nevertheless, the absolute value of the complex Wronskian admits a non-commutative extension for quaternionic functions of one real variable. Linear dependence and independence of solutions of homogeneous (right) H-linear differential equations is then related to this new functional. Our discussion is, for simplicity, presented for quaternionic second order differential equations. This involves no loss of generality. Definitions and results can be readily extended to the n-order case.
description: 9 pages, AMS-TeX
Connecting Berry's phase and the pumped charge in a Cooper pair pump
Creators: name: Aunola, M.
name: Toppari, J. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The properties of the tunnelling-charging Hamiltonian of a Cooper pair pump are well understood in the regime of weak and intermediate Josephson coupling, i.e. when $E_{\mathrm{J}}\lesssim E_{\mathrm{C}}$. It is also known that Berry's phase is related to the pumped charge induced by the adiabatical variation of the eigenstates. We show explicitly that pumped charge in Cooper pair pump can be understood as a partial derivative of Berry's phase with respect to the phase difference $ϕ$ across the array. The phase fluctuations always present in real experiments can also be taken into account, although only approximately. Thus the measurement of the pumped current gives reliable, yet indirect, information on Berry's phase. As closing remarks, we give the differential relation between Berry's phase and the pumped charge, and state that the mathematical results are valid for any observable expressible as a partial derivative of the Hamiltonian.
description: 5 pages, 5 figures, RevTeX, Presentation has been clarified
On the evolution of pebble-accreting planets in evolving protoplanetary discs
Creators: name: Pierens, Arnaud
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We examine the migration of luminous low-mass cores in laminar protoplanetary discs where accretion occurs mainly because of disc winds and where the planet luminosity is generated by pebble accretion. Using 2D hydrodynamical simulations, we determine the eccentricities induced by thermal forces as a function of gas and pebble accretion rates, and also evaluate the importance of the torque exerted by the solid component relative to the gas torque. For a gas accretion rate $\dot M= 2\times 10^{-8}$ $M_\odot/$yr and pebble flux $\dot M_{peb}=170$ $M_\oplus$/Myr, we find that embryo eccentricities attain values comparable to the disc aspect ratio. The planet radial excursion in the disc, however, causes the torque exerted by inflowing pebbles to cancel on average and migration to transition from outward to inward. This is found to arise because the magnitude of thermal torques decreases exponentially with increasing eccentricity, and we provide a fitting formula for the thermal torque attenuation as a function of eccentricity. As the disc evolves, the accretion luminosity becomes at some point too small to make the core eccentricity grow such that the solid component can exert a non-zero torque on the planet. This torque is positive and for gas accretion rates $\dot M \lesssim 5\times 10^{-9}$ $M_\odot/$yr and pebble fluxes $\dot M_{peb} \lesssim 120$ $M_\oplus/$Myr, it is found to overcome the gas torque exerted on cores with mass $m_p\lesssim$ $1M_\oplus$, resulting in outward migration.
description: Accepted in MNRAS
From short to long scales in the QCD vacuum
Creators: name: Tomboulis, E. T.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We study approximate decimations in SU(N) LGT that connect the short to long distance regimes, and provide both upper and lower bounds on the exact partition function. This leads to a representation of the exact partition function in terms of successive decimations. The implications for a derivation of confinement from first principles are discussed.
description: 3 pages, talk presented at Lattice2003(topology)
4D Movement: Introducing 'In' and 'Out' as the Missing Directions
Creators: name: Owies, samar
Publisher: name: Zenodo
Year: 2025
Subjects: subject: 4D movement
subject: Higher dimensions
subject: Spatial theory
subject: Quantum tunneling
subject: Dimensional physics
subject: Entanglement
subject: Theoretical physics

description: This theory proposes that each new spatial dimension introduces two additional directions of movement. In the case of the fourth dimension, the directions “in” and “out” are proposed as the missing vectors. The paper explores dimensional symmetry, limitations of 2D/3D perception, and possible evidence in physics such as quantum tunneling and entanglement. It offers a new way to think about spatial expansion and higher-dimensional motion.
Additional file 2 of Large-scale kinetic metabolic models of Pseudomonas putida KT2440 for consistent design of metabolic engineering strategies
Creators: name: Tokic, Milenko
name: Hatzimanikatis, Vassily
name: Ljubisa Miskovic
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: Computational Biology

description: Additional file 2: Figure S4.Â Distribution of the control coefficients of glucose uptake (GLCtex) with respect to most important enzymes in the stress conditions.
Simulation of the Hall-Petch effect in FCC polycrystals by means of strain gradient crystal plasticity and FFT homogenization
Creators: name: Haouala, S.
name: Lucarini, S.
name: LLorca, J.
name: Segurado, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The influence of grain size on the flow stress of various FCC polycrystals (Cu, Al, Ag and Ni) has been analyzed by means of computational homogenization of a representative volume element of the microstructure using a FFT approach in combination with a strain gradient crystal plasticity model. The density of geometrically necessary dislocations resulting from the incompatibility of plastic deformation among different crystals was obtained from the Nye tensor, which was efficiently obtained from the curl operation in the Fourier space. The simulation results were in good agreement with the experimental data for Cu, Al, Ag and Ni polycrystals for grain sizes > 20 microns and strains < 5% and provided a physical explanation for the higher strengthening provided by grain boundaries in Al and Ni, as compared with Cu and Ag. The investigation demonstrates how the combination of FFT with strain gradient crystal plasticity can be used to include effect of grain boundaries in the mechanical behavior of polycrystals using realistic representative volume elements of the microstructure.
Partial energies fluctuations and negative heat capacities
Creators: name: Campi, Xavier
name: Krivine, H.
name: Plagnol, E.
name: Sator, N.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Physical sciences

description: We proceed to a critical examination of the method used in nuclear fragmentation to exhibit signals of negative heat capacity. We show that this method leads to unsatisfactory results when applied to a simple and well controlled model. Discrepancies are due to incomplete evaluation of potential energies.
description: Modified figures 3 and 4
NaCo polarimetric observations of Sz 91 transitional disk: a remarkable case of dust filtering
Creators: name: Maucó, Karina
name: Olofsson, Johan
name: Canovas, Hector
name: Schreiber, Matthias R.
name: Christiaens, Valentin
name: Bayo, Amelia
name: Zurlo, Alice
name: Cáceres, Claudio
name: Pinte, Christophe
name: Villaver, Eva
name: Girard, Julien H.
name: Cieza, Lucas
name: Montesinos, Matías
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present polarized light observations of the transitional disk around Sz 91 acquired with VLT/NaCo at $H$ (1.7$μ$m) and $K_s$ (2.2$μ$m) bands. We resolve the disk and detect polarized emission up to $\sim$0."5 ($\sim$80 au) along with a central cavity at both bands. We computed a radiative transfer model that accounts for the main characteristics of the polarized observations. We found that the emission is best explained by small, porous grains distributed in a disk with a $\sim$45 au cavity. Previous ALMA observations have revealed a large sub-mm cavity ($\sim$83 au) and extended gas emission from the innermost (<16 au) regions up to almost 400 au from the star. Dynamical clearing by multiple low-mass planets arises as the most probable mechanism for the origin of Sz 91's peculiar structure. Using new $L'$ band ADI observations we can rule out companions more massive than $M_p$ $\geq$ 8 $M_\mathrm{Jup}$ beyond 45 au assuming hot-start models. The disk is clearly asymmetric in polarized light along the minor axis, with the north side brighter than the south side. Differences in position angle between the disk observed at sub-mm wavelengths with ALMA and our NaCo observations were found. This suggests that the disk around Sz 91 could be highly structured. Higher signal-to-noise near-IR and sub-mm observations are needed to confirm the existence of such structures and to improve the current understanding in the origin of transitional disks.
description: 14 pages, 8 figures, accepted for publication in MNRAS
Impact detection using a machine learning approach and experimental road roughness classification
Creators: name: Gorges, Christian
name: Öztürk, Kemal
name: Liebich, Robert
Publisher: name: Technische Universität Berlin
Year: 2018
Subjects: subject: 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: Road roughness classification
subject: ISO 8608
subject: Impact detection
subject: Supervised machine learning
subject: Customer usage profiles
subject: Two-wheeled vehicles

description: First, this publication presents the experimental validation of a road roughness classification method. Second, an impact detection strategy for two-wheeled vehicles is proposed including a classification of service loads, mild special events, and severe special events. The methods presented utilise the vehicle’s onboard signals to gather field data. The modular road roughness classification system operates with the vehicle’s transfer functions, and continuously classifies the road profile, according to ISO 8608. The method was successfully validated on test tracks with known road profiles. The impact detection strategy was developed using a supervised machine learning technique. Six road obstacles were ridden over using different velocities to invoke mild and severe special events. The most popular classifiers were trained for comparison and prediction of future observations. The developed impact detection strategy shows a high accuracy and was successfully validated using a k-fold cross-validation. The combination of the road roughness classification system and the impact detection strategy, enables a holistic field data acquisition of customer usage profiles, in the context of durability engineering. The collection of customer usage profiles improves vehicle design targets and enables a virtual load acquisition.