cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Pheidole gibbata Wilson, 2003, new status
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole gibbata

description: Pheidole gibbata Borgmeier, new status
Pheidole transversostriata subsp. gibbata Borgmeier 1934: 10.
Types Mus. Zool. Univ. Sao Paulo.
Etymology L gibbata, hump-backed, crooked.
diagnosis a very small, yellowish brown member of the tachigaliae group, closest to mendicula (q.v.) and differing from that species as follows.
Major: occiput transversely carinulate; rugoreticula present between eye and antennal fossa and on pronotal dorsum; transverse midpronotal carina less prominent and not protruding from dorsal pronotal profile in side view. Minor: head and pronotum smooth and shiny.
Measurements (mm) Lectotype major: HW 0.56, HL 0.60, SL 0.30, EL 0.08, PW 0.36. Paralectotype minor: HW 0.32, HL 0.38, SL 0.26, EL 0.06, PW 0.24. color Major: body medium yellowish brown except for gaster, which is light brown. Minor: concolorous medium yellowish brown.
range Known from the type locality (Paramaribo, Suriname) and Canaveral, Magdalena, Colombia, 200 m (Philip S. Ward).
biology Ward's Colombian series was sifted from litter and rotting wood in dry tropical forest.
Figure Upper: lectotype, major. Lower: paralectotype, minor. SURINAME: Paramaribo. Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 636
Role of gaseous giants in the dynamical evolution of terrestrial planets and water delivery in the habitable zone
Creators: name: Sánchez, Mariana B.
name: de Elía, Gonzalo C.
name: Darriba, Luciano A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In the present research, we study the effects of a single giant planet in the dynamical evolution of water-rich embryos and planetesimals, located beyond the snow line of systems around Sun-like stars, in order to determine what kind of terrestrial-like planets could be formed in the habitable zone (hereafter HZ) of these systems. To do this, we carry out N-body simulations of planetary accretion, considering that the gas has been already dissipated from the disk and a single giant planet has been formed beyond the snow line of the system, at 3 au. We find that a giant planet with a value of mass between Saturn-mass and Jupiter-mass, represents a limit from which the amount of water-rich embryos that moves inward from beyond the snow line starts to decrease. From this, our research suggests that giant planets more massive than one Jupiter-mass become efficient dynamical barriers to inward-migrating water-rich embryos. Moreover, we infer that the number of these embryos that survive in the HZ significantly decreases for systems that host a giant planet more massive than one Jupiter-mass. This result has important consequences concerning the formation of terrestrial-like planets in the HZ with very high water contents and could provide a selection criteria in the search of potentially habitable exoplanets in systems that host a gaseous giant around solar-type stars.
description: 10 pages, 8 figures
Transverse Magnetoresistance of GaAs/AlGaAs Heterojunctions in the Presence of Parallel Magnetic Fields
Creators: name: Heisz, J. M.
name: Zaremba, E.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We have calculated the resistivity of a GaAs\slash AlGaAs heterojunction in the presence of both an in--plane magnetic field and a weak perpendicular component using a semiclassical Boltzmann transport theory. These calculations take into account fully the distortion of the Fermi contour which is induced by the parallel magnetic field. The scattering of electrons is assumed to be due to remote ionized impurities. A positive magnetoresistance is found as a function of the perpendicular component, in good qualitative agreement with experimental observations. The main source of this effect is the strong variation of the electronic scattering rate around the Fermi contour which is associated with the variation in the mean distance of the electronic states from the remote impurities. The magnitude of the positive magnetoresistance is strongly correlated with the residual acceptor impurity density in the GaAs layer. The carrier lifetime anisotropy also leads to an observable anisotropy in the resistivity with respect to the angle between the current and the direction of the in--plane magnetic field.
description: uuencoded file containing a 26 page RevTex file and 14 postscript figures. Submitted to Phys. Rev. B
Selectivity of the 16O(e,e'pp) reaction to discrete final states
Creators: name: Giusti, C.
name: Pacati, F. D.
name: Allaart, K.
name: Geurts, W. J. W.
name: Dickhoff, W. H.
name: Müther, H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Resolution of discrete final states in the $^{16}$O(e,e$'$pp)$^{14}$C reaction may provide an interesting tool to discriminate between contributions from one- and two-body currents in this reaction. This is based on the observation that the $0^+$ ground state and first $2^+$ state of $^{14}$C are reached predominantly by the removal of a $^1S_0$ pair from $^{16}$O in this reaction, whereas other states mostly arise by the removal of a $^3P$ pair. This theoretical prediction has been supported recently by an analysis of the pair momentum distribution of the experimental data. In this paper we present results of reaction calculations performed in a direct knock-out framework where final-state interaction and one- and two-body currents are included. The two-nucleon overlap integrals are obtained from a calculation of the two-proton spectral function of $^{16}$O and include both long-range and short-range correlations. The kinematics chosen in the calculations is relevant for recent experiments at NIKHEF and Mainz.
description: 17 pages, LaTeX, 9 figures included
Metastable Gravitons and Infinite Volume Extra Dimensions
Creators: name: Dvali, G.
name: Gabadadze, G.
name: Porrati, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We address the issue of whether extra dimensions could have an infinite volume and yet reproduce the effects of observable four-dimensional gravity on a brane. There is no normalizable zero-mode graviton in this case, nevertheless correct Newton's law can be obtained by exchanging bulk gravitons. This can be interpreted as an exchange of a single {\it metastable} 4D graviton. Such theories have remarkable phenomenological signatures since the evolution of the Universe becomes high-dimensional at very large scales. Furthermore, the bulk supersymmetry in the infinite volume limit might be preserved while being completely broken on a brane. This gives rise to a possibility of controlling the value of the bulk cosmological constant. Unfortunately, these theories have difficulties in reproducing certain predictions of Einstein's theory related to relativistic sources. This is due to the van Dam-Veltman-Zakharov discontinuity in the propagator of a massive graviton. This suggests that all theories in which contributions to effective 4D gravity come predominantly from the bulk graviton exchange should encounter serious phenomenological difficulties.
description: 9 LaTex pages; One reference and a comment added
Relations among QCD corrections beyond leading order
Creators: name: Blümlein, J.
name: Ravindran, V.
name: van Neerven, W. L.
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The status of various relations among higher order QCD corrections is discussed. In particular, Drell-Levy-Yan relation and Supersymmetric relation are studied at the two-loop level. We have also investigated the validity of such relations for physical observables.
description: 3 pages, LaTeX. Contributed to 3rd UK Phenomenology Workshop on HERA Physics, Durham, England, 20-25 Sep 1998
The Contributions of Neutral Higgs Bosons to Charmless Nonleptonic B Decays in MSSM
Creators: name: Huang, Chao-Shang
name: Yan, Qi-Shu
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the contributions of neutral Higgs bosons to nonleptonic transition $b \to q \bar{s} s, q=d, s$ under the supersymmetric context. Their effects to decay width and CP violation in corresponding exclusive decays are explored. The anomalous dimension matrices of the operators which have to be incorporated to include the contributions of neutral Higgs bosons are given. We find that when tan$β$ is large (say, 50) and neutral Higgs bosons are not too heavy (say, 100 GeV), contributions of neutral Higgs penguin can dominate electroweak penguin contributions, and for some processes, they can greatly modify both decay width and CP asymmetry.
description: 11 pages, typo corrected, references added, minor revisions made
Surface Region of Superfluid Helium as an Inhomogeneous Bose-Condensed Gas
Creators: name: Griffin, A.
name: Stringari, S.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present arguments that the low density surface region of self-bounded superfluid $^4$He systems is an inhomogeneous dilute Bose gas, with almost all of the atoms occupying the same single-particle state at $T = 0$. Numerical evidence for this complete Bose-Einstein condensation was first given by the many-body variational calculations of $^4$He droplets by Lewart, Pandharipande and Pieper in 1988. We show that the low density surface region can be treated rigorously using a generalized Gross-Pitaevskii equation for the Bose order parameter.
description: 4 pages, 1 Postscript figure
QED out of matter
Creators: name: Sonoda, Hidenori
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The Wilsonian renormalization group implies that an arbitrary four dimensional field theory with an ultraviolet cutoff is equivalent to a theory which is renormalizable by power counting at energy scales much below the cutoff. This applies to any theory including those with non-renormalizable interactions as long as we fine-tune the mass parameters. We analyze two simple models with current-current interactions but without elementary gauge fields from this viewpoint. We show how to tune the parameters of the models so that they become equivalent to QED at energies much below the cutoff.
description: latex, 19 pages, 9 figures
The spectrum and strong couplings of heavy-light hybrids
Creators: name: Huang, Tao
name: Jin, Hongying
name: Zhang, Ailin
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The spectrum of the $0^{++}$, $0^{--}$, $1^{-+}$ and $1^{+-}$ heavy-light hybrids have been calculated in HQET. The interpolated current of the hybrid is chosen as $g\bar qγ_αG_{αμ}^aT^ah_{\it v}(x)$, $g\bar qγ_αγ_{5}G_{αμ}^aT^ah_{\it v}(x)$ and $g\bar qσ_{μα}G_{αμ}^aT^ah_{\it v}(x)$. Some strong couplings and decay widths of the heavy-light hybrids to $B(D)π$ are calculated by using the QCD sum rules. The mass of $0^{++}$ hybrid with gluon in TM($1^{--}$) or TE($1^{+-}$) mode is found similar, while their decay widths are different. A two-point correlation function between the pion and vacuum is employed and the leading order of $1/M_Q$ expansion is kept in our calculation.
description: 12 pages, 5 ps figures, Latex file
Transverse Energy Evolution as a Test of Parton Cascade Models
Creators: name: Gyulassy, Miklos
name: Pang, Yang
name: Zhang, Bin
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a test of Monte Carlo Parton Cascade models based on analytic solutions of covariant kinetic theory for longitudinally boost and transverse translation invariant boundary conditions. We compute the evolution of the transverse energy per unit rapidity for typical mini-jet initial conditions expected in ultra-relativistic nuclear collisions. The kinetic theory solutions under these conditions test the models severely because they deviate strongly from free-streaming and also from ideal Euler and dissipative Navier-Stokes hydrodynamical approximations. We show that the newly formulated ZPC model passes this test. In addition, we show that the initial mini-jet density would need to be approximately four times higher than estimated with the HIJING generator in central Au+Au collisions at c.m. energies 200 AGeV in order that parton cascade dynamics can be approximated by Navier-Stokes hydrodynamics.
description: Latex 28 pages, including 5 figure (postscript embedded with psfig)
Higher Dimensional Operator Corrections to the Goldstino Goldberger-Treiman Vertices
Creators: name: Lee, Taekoon
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The goldstino-matter interactions given by the Goldberger-Treiman relations can receive higher dimensional operator corrections of $ O(q^{2}/M^{2})$, where $M$ denotes the mass of the mediators through which SUSY breaking is transmitted. These corrections in the gauge mediated SUSY breaking models arise from loop diagrams, and an explicit calculation of such corrections is presented. It is emphasized that the Goldberger-Treiman vertices are valid only below the mediator scale and at higher energies goldstinos decouple from the MSSM fields. The implication of this fact on gravitino cosmology in GMSB models is mentioned.
description: 9 pages, 4 figures, typos corrected, version to appear in Eur. Phys. J. C
title: ADCO, Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Cart. 32 (G 136), 745 folios, f. 1420
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2012
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: cartulaire
subject: LaMOP

description: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1420, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Neuvième cartulaire de Saint-Étienne de Dijon (1661 - 1684), Archives départementales de la Côte-d'Or, Cart. 32 (G 136), 745 folios, f. 1420, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
The Type II Superluminous SN 2008es at Late Times: Near-Infrared Excess and Circumstellar Interaction
Creators: name: Bhirombhakdi, Kornpob
name: Chornock, Ryan
name: Miller, Adam A.
name: Filippenko, Alexei V.
name: Cenko, S. Bradley
name: Smith, Nathan
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: SN 2008es is one of the rare cases of a Type II superluminous supernova (SLSN) showing no relatively narrow features in its early-time spectra, and therefore its powering mechanism is under debate between circumstellar interaction (CSI) and magnetar spin-down. Late-time data are required for better constraints. We present optical and near-infrared (NIR) photometry obtained from Gemini, Keck, and Palomar Observatories from 192 to 554 days after explosion. Only broad H$α$ emission is detected in a Gemini spectrum at 288 days. The line profile exhibits red-wing attenuation relative to the early-time spectrum. In addition to the cooling SN photosphere, a NIR excess with blackbody temperature $\sim1500$ K and radius $\sim10^{16}$ cm is observed. This evidence supports dust condensation in the cool dense shell being responsible for the spectral evolution and NIR excess. We favour CSI, with $\sim2$--3 $\textrm{M}_\odot$ of circumstellar material (CSM) and $\sim$10--20 $\textrm{M}_\odot$ of ejecta, as the powering mechanism, which still dominates at our late-time epochs. Both models of uniform density and steady wind fit the data equally well, with an effective CSM radius $\sim 10^{15}$ cm, supporting the efficient conversion of shock energy to radiation by CSI. A low amount ($\lesssim 0.4$ $\textrm{M}_\odot$) of $^{56}$Ni is possible but cannot be verified yet, since the light curve is dominated by CSI. The magnetar spin-down powering mechanism cannot be ruled out, but is less favoured because it overpredicts the late-time fluxes and may be inconsistent with the presence of dust.
Rigorous Density Functional Theory for Inhomogeneous Bose-Condensed Fluids
Creators: name: Griffin, A.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The density functional theory originally developed by Hohenberg, Kohn and Sham provides a rigorous conceptual framework for dealing with inhomogeneous interacting Fermi systems. We extend this approach to deal with inhomogeneous interacting Bose-condensed systems, limiting this presentation to setting up the formalism to deal with ground state $(T=0)$ properties. The key new feature is that one must deal with energy functionals of both the local density $n({\bf r})$ and the local complex macroscopic wavefunction $Φ({\bf r})$ associated with the Bose broken-symmetry (the local condensate density is $n_{c}({\bf r}) = \vert Φ({\bf r}) \vert ^{2}$). Implementing the Kohn-Sham scheme, we reduce the problem to a gas of weakly-interacting Bosons moving in self-consistent diagonal and off-diagonal one-body potentials. Our formalism should provide the basis for studies of the surface properties of liquid $^4$He as well as the properties of Bose-condensed atomic gases trapped in external potentials.
description: 20 pages
Sensing and control of segmented mirrors with a pyramid wavefront sensor in the presence of spiders
Creators: name: Schwartz, Noah
name: Sauvage, Jean-François
name: Correia, Carlos
name: Petit, Cyril
name: Quiros-Pacheco, Fernando
name: Fusco, Thierry
name: Dohlen, Kjetil
name: Hadi, Kacem El
name: Thatte, Niranjan
name: Clarke, Fraser
name: Paufique, Jérome
name: Vernet, Joel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The segmentation of the telescope pupil (by spiders & the segmented M4) create areas of phase isolated by the width of the spiders on the wavefront sensor (WFS), breaking the spatial continuity of the wavefront. The poor sensitivity of the Pyramid WFS (PWFS) to differential piston leads to badly seen and therefore uncontrollable differential pistons. In close loop operation, differential pistons between segments will settle around integer values of the average sensing wavelength. The differential pistons typically range from one to ten times the sensing wavelength and vary rapidly over time, leading to extremely poor performance. In addition, aberrations created by atmospheric turbulence will contain large amounts of differential piston between the segments. Removing piston contribution over each of the DM segments leads to poor performance. In an attempt to reduce the impact of unwanted differential pistons that are injected by the AO correction, we compare three different approaches. We first limit ourselves to only use the information measured by the PWFS, in particular by reducing the modulation. We show that using this information sensibly is important but will not be sufficient. We discuss possible ways of improvement by using prior information. A second approach is based on phase closure of the DM commands and assumes the continuity of the correction wavefront over the entire unsegmented pupil. The last approach is based on the pair-wise slaving of edge actuators and shows the best results. We compare the performance of these methods using realistic end-to-end simulations. We find that pair-wise slaving leads to a small increase of the total wavefront error, only adding between 20-45 nm RMS in quadrature for seeing conditions between 0.45-0.85 arcsec. Finally, we discuss the possibility of combining the different proposed solutions to increase robustness.
description: 12 pages, 15 figures, AO4ELT5 Proceedings, Adaptive Optics for Extremely Large Telescopes 5, Conference Proceeding, Tenerife, Canary Islands, Spain, June 25-30, 2017
The Open Science Publishing Flood and Collaborative Authoring
Creators: name: Worthington, Simon
Publisher: name: Zenodo
Year: 2019
Subjects: semantic publishing
computational publishing
open science
collaborative authoring

description: A perspective on future publishing I am approaching collaborative authoring from the experiences of being the director of a small publishing company. It is these experiences that inform my research of ‘future publishing’. This means caring about the integrity of all parts of a publication and over its complete life and being aware of the hidden labor and skills involved in a publication production. What is important to Open Science now is to take on board that the transformation to ‘semantic/computational publishing’ is not only desirable/inevitable but it is now happening at an accelerated rate. Finally after 80+ years of the universal machine we can start writing again.
Regional and mechanistic differences in platelet-derived growth factor-isoform-induced alterations in cytosolic free calcium in porcine vascular smooth muscle cells
Creators: name: HERMAN, B
name: DILIBERTO, P.
name: GORDON, G
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: Three specific platelet-derived growth factor (PDGF) isoforms are thought to bind with differing affinities to two distinct PDGF receptors which undergo activation following dimerization. Recent evidence has been presented that marked differences exist between the ability of PDGF-AA versus PDGF-AB and PDGF-BB to stimulate alterations in second messengers in cultures of vascular smooth muscle cells (VSMC), a result which was thought to be due to low numbers of the A-type receptor in this cell type (Sachinidis, A., Locker, R., Vetter, W., Tatje, D., and Hoppe, J. (1990) J. Biol. Chem. 265, 10238-10243, 1990). In particular, PDGF-BB and PDGF-AB but not PDGF-AA could elicit alterations in cytosolic free calcium (Ca2+i). However, because these studies were performed on large cell populations using biochemical assays of PDGF activity, a minor PDGF-AA-Ca(2+)-responsive population of cells might go undetected. To test this possibility, VSMC were isolated from either thoracic or abdominal pig aorta, and alterations in Ca2+i were monitored using Multiparameter Digitized Video Microscopy following stimulation with PDGF isoforms alone, or either before or after exposure of VSMC to 5 mM EGTA. PDGF-AA-responsive cells were found to exist only in cultures of thoracic VSMC, caused oscillations in Ca2+i, represented 20% of the PDGF-BB-responsive cells, and were subsequently responsive to PDGF-BB. PDGF-BB elicited monophasic alterations in Ca2+i in both thoracic and abdominal VSMC. Prior addition of EGTA inhibited PDGF-AA but not PDGF-BB-induced alterations in Ca2+i. Addition of EGTA during PDGF-AA-induced Ca2+i oscillations inhibited subsequent oscillations in Ca2+i, while addition of EGTA at the peak of the PDGF-BB Ca2+ response resulted in a more rapid return of Ca2+i to prestimulation levels. These data suggest that regional differences in the distribution of PDGF-A- and B-type receptor exists in vivo, and that activation of the A- and B-type PDGF receptors results in distinct alterations in Ca2+i.
Deuteron Disintegration by Protons in Kinematics of Quasi-Elastic Backward pd-Scattering
Creators: name: Smirnov, A. V.
name: Uzikov, Yu. N.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The deuteron break-up exclusive reaction $p+d \to N(180^{\circ}) + (NN)(0^{\circ})$ is considered in the framework of the one-nucleon-exchange mechanism at the incident proton kinetic energy 0.2--2 GeV and the relative energy of nucleons in the forward going final NN-pair $E_{NN}=0$--20 MeV, that is close to the kinematical conditions of the planned experiment at COSY. The off-energy-shell effects resulting, in particular, in the node of the half-off-shell $^1S_0$-state partial NN-scattering amplitude and the role of higher partial waves in the subprocess $pN\to pN$ are analysed and found to be very important, especially for the reaction $p+d \to n(180^{\circ}) + (pp)(0^{\circ})$. The accuracy of some approximate relations between the cross sections of elastic $pd$-scattering and deuteron break-up is examined in the framework of the mechanism in question.
description: 24 pages, Latex, 8 Postscript figures, to be published in Yad. Fiz. 1998
On the disintegration of cosmic ray nuclei by solar photons
Creators: name: Epele, Luis N.
name: Mollerach, Silvia
name: Roulet, Esteban
Publisher: name: arXiv
Year: 1998
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss in detail the possibility of observing pairs of simultaneous parallel air showers produced by the fragments of cosmic ray nuclei which disintegrated in collisions with solar photons. We consider scenarios with different cosmic ray compositions, exploring the predicted rates for existing and planned detectors and looking for methods to extract information on the initial composition from the characteristics of the signal. In particular, we find that fluorescence detectors, such as HiRes or the Telescope Array, due to their low threshold ($\sim 10^{17}$ eV) and large area ($\sim 10^4 km^2$) may observe several events per year if cosmic rays at those energies are indeed heavy nuclei. The possibility of exploiting the angular orientation of the plane containing the two showers to further constrain the cosmic ray composition is also discussed.
description: 15 pages
Role of disulfide bonds in biologic activity of human interleukin-6
Creators: name: Fowlkes, DM
name: Leebeek, FW
name: Snouwaert, JN
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: We have examined the functional importance of the two disulfide bonds formed by the four conserved cysteines of human interleukin (IL-6). Using a bacterial expression system, we have synthesized a series of recombinant IL-6 mutants in which the constituent cysteines of the first (Cys45-Cys51), second (Cys74-Cys84), or both disulfide bonds of recombinant human interleukin-6 were replaced by other amino acids. Each mutant was partially purified and tested in four representative bioassays. While mutants lacking Cys45 and Cys51 retained activity similar to nonmutated recombinant IL-6, the activity of mutants lacking Cys74 and Cys84 was significantly reduced, especially in assays involving human cell lines. These results indicate that the first disulfide bond of human interleukin-6 is not required for maintenance of normal biologic activity. However, the fact that mutants lacking Cys45 and Cys51 were more active than corresponding cysteine-free mutants indicates that the disulfide bond formed by these residues contributes to biologic activity in the absence of the second disulfide bond. Competition binding studies with representative mutants indicate that their affinity for the human IL-6 receptor parallels their biologic activities on human cells.
The Mass Power Spectrum in Quintessence Cosmological Models
Creators: name: Ma, Chung-Pei
name: Caldwell, R. R.
name: Bode, Paul
name: Wang, Limin
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present simple analytic approximations for the linear and fully evolved nonlinear mass power spectrum for spatially flat cold dark matter (CDM) cosmological models with quintessence (Q). Quintessence is a time evolving, spatially inhomogeneous energy component with negative pressure and an equation of state w_Q < 0. It clusters gravitationally on large length scales but remains smooth like the cosmological constant on small length scales. We show that the clustering scale is determined by the Compton wavelength of the Q-field and derive a shape parameter, Γ_Q, to characterize the linear mass power spectrum. The growth of linear perturbations as functions of redshift, w_Q, and matter density Ω_m is also quantified. Calibrating to N-body simulations, we construct a simple extension of the formula by Ma (1998) that closely approximates the nonlinear power spectrum for a range of plausible QCDM models.
description: 5 pages with 3 inserted postscript figures, AAS LaTeX v4.0 emulateapj.sty. Astrophysical Journal Letters, in press
Pheidole mendicula Wheeler
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole mendicula

description: Pheidole mendicula Wheeler
Pheidole (Hendecapheidole) mendicula Wheeler 1925e:172.
Types Mus. Comp. Zool. Harvard.
ETYMOLOGY L mendicula, little and beggarly, or poor, presumably alluding to the small size and reduction of antennal segmentation.
Diagnosis A very small, reddish brown member of the tachigaliae group, which group is characterized by 11-segmented antennae, and distinguished within it as follows.
Major: occiput rugoreticulate, antennal scrobes, frontal triangle, and mid-clypeus smooth, and rest of dorsal head surface transversely carinulate; all of head and mesosoma foveolate and punctate; strong transverse ridge just breaks the surface of the pronotal profile in side view as a right-angle; posterior half of dorsal head profile in side view weakly concave; postpetiole from above trapezoidal. Minor: all of head and mesosoma foveolate and opaque; carinulae absent mesad to eye; propodeal spines backward projecting. Measurements (mm) Syntype major: HW 0.60, HL 0.66, SL 0.32, EL 0.08, PW 0.38. Syntype minor: HW 0.34, HL 0.34, SL 0.26, EL 0.06, PW 0.24.
Color Major and minor: body concolorous medium reddish brown, appendages a contrasting yellowish brown.
Range Besides Wheeler's type collection in Panama, Longino (1997) has recorded mendicula from both the Atlantic and Pacific lowlands of Costa Rica; and the species has been collected widely southward to Trinidad and Amazonian Brazil, Peru, and Ecuador.
Biology P. mendicula is an adaptable species. At La Selva, near Puerto Viejo, Costa Rica, Longino (1997) found a nest in the clay soil of a lawn surrounded by rainforest. Other sites include a second-growth forest and a rotten branch in a bamboo grove (Trinidad), and a rotten stick on the floor of terra firme rainforest (Brazil). On the Osa Peninsula of Costa Rica, Longino (1997) collected a worker from an extrafloral nectary of Passifolia pittieri. Winged queens have been found in nests from May to July.
Figure Upper: syntype, major. Lower: syntype, minor. PANAMA: Barro Coorado Island (William M. Wheeler). Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 637
Experimental engineering of arbitrary qudit states with discrete-time quantum walks
Creators: name: Giordani, Taira
name: Polino, Emanuele
name: Emiliani, Sabrina
name: Suprano, Alessia
name: Innocenti, Luca
name: Majury, Helena
name: Marrucci, Lorenzo
name: Paternostro, Mauro
name: Ferraro, Alessandro
name: Spagnolo, Nicolò
name: Sciarrino, Fabio
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The capability to generate and manipulate quantum states in high-dimensional Hilbert spaces is a crucial step for the development of quantum technologies, from quantum communication to quantum computation. One-dimensional quantum walk dynamics represents a valid tool in the task of engineering arbitrary quantum states. Here we affirm such potential in a linear-optics platform that realizes discrete-time quantum walks in the orbital angular momentum degree of freedom of photons. Different classes of relevant qudit states in a six-dimensional space are prepared and measured, confirming the feasibility of the protocol. Our results represent a further investigation of quantum walk dynamics in photonics platforms, paving the way for the use of such a quantum state-engineering toolbox for a large range of applications.
description: 6+4 pages, 3+1 figures
Role of lysine 173 in heparin binding to heparin cofactor II
Creators: name: Szewczyk, Mark
name: Whinna, Herbert
name: Church, Frank
name: Tollefsen, Douglas
name: Blinder, Morey
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: Heparin cofactor II (HC) is a plasma serine proteinase inhibitor (serpin) that inhibits alpha-thrombin in a reaction that is dramatically enhanced by heparin and other glycosaminoglycans/polyanions. We investigated the glycosaminoglycan binding site in HC by: (i) chemical modification with pyridoxal 5'-phosphate (PLP) in the absence and presence of heparin and dermatan sulfate; (ii) molecular modeling; and (iii) site-directed oligonucleotide mutagenesis. Four lysyl residues (173, 252, 343, and 348) were protected from modification by heparin and to a lesser extent by dermatan sulfate. Heparin-protected PLPHC retained both heparin cofactor and dermatan sulfate cofactor activity while dermatan sulfate-protected PLPHC retained some dermatan sulfate cofactor activity and little heparin cofactor activity. Molecular modeling studies revealed that Lys173 and Lys252 are within a region previously shown to contain residues involved in glycosaminoglycan binding. Lys343 and Lys348 are distant from this region, but protection by heparin and dermatan sulfate might result from a conformational change following glycosaminoglycan binding to the inhibitor. Site-directed mutagenesis of Lys173 and Lys343 was performed to further dissect the role of these two regions during HC-heparin and HC-dermatan sulfate interactions. The Lys343----Asn or Thr mutants had normal or only slightly reduced heparin or dermatan sulfate cofactor activity and eluted from heparin-Sepharose at the same ionic strength as native recombinant HC. However, the Lys173----Gln or Leu mutants had greatly reduced heparin cofactor activity and eluted from heparin-Sepharose at a significantly lower ionic strength than native recombinant HC but retained normal dermatan sulfate cofactor activity. Our results demonstrate that Lys173 is involved in the interaction of HC with heparin but not with dermatan sulfate, whereas Lys343 is not critical for HC binding to either glycosaminoglycan. These data provide further evidence for the determinants required for glycosaminoglycan binding to HC.
Additional file 1: of What enables good end of life care for people with dementia? A multi-method qualitative study with key stakeholders
Creators: name: Bamford, Claire
name: Lee, Richard
name: McLellan, Emma
name: Poole, Marie
name: Harrison-Dening, Karen
name: Hughes, Julian
name: Robinson, Louise
name: Exley, Catherine
Publisher: name: figshare
Year: 2018
Subjects: subject: Medicine
subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Description of case study sites. (DOCX 17â kb)
Relativistic Hartree-Bogoliubov theory with finite range pairing forces in coordinate space: Neutron halo in light nuclei
Creators: name: Poeschl, W.
name: Vretenar, D.
name: Lalazissis, G. A.
name: Ring, P.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Relativistic Hartree Bogoliubov (RHB) model is applied in the self-consistent mean-field approximation to the description of the neutron halo in the mass region above the s-d shell. Pairing correlations and the coupling to particle continuum states are described by finite range two-body forces. Finite element methods are used in the coordinate space discretization of the coupled system of Dirac-Hartree-Bogoliubov integro-differential eigenvalue equations, and Klein-Gordon equations for the meson fields. Calculations are performed for the isotopic chains of Ne and C nuclei. We find evidence for the occurrence of neutron halo in heavier Ne isotopes. The properties of the 1f-2p orbitals near the Fermi level and the neutron pairing interaction play a crucial role in the formation of the halo. Our calculations display no evidence for the neutron halo phenomenon in C isotopes.
description: 7 pages, Latex, 5 P.S. Figures, To appear in Phys. Rev. Lett
Pheidole pedana Wilson, 2003, new species
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole pedana

description: Pheidole pedana new species
Types Mus. Comp. Zool. Harvard.
Etymology Gr pedana, of the earth.
Diagnosis A tiny, yellow member of the tachigaliae group, characterized by 11-segmented antennae, and distinguished within it as follows.
Major: all of head and mesosoma foveolate and opaque; all of head carinulate except antennal scrobes, frontal triangle, and midclypeus; no part of the body rugoreticulate; mid-pronotal profde bluntly and weakly angulate; postpetiole from above oval. Minor: head and mesosoma completely foveolate and opaque; eye set very far forward, its distance to the genal border only about 2/3 its length.
Measurements (mm) Holotype major: HW 0.52, HL 0.60, SL 0.26, EL 0.06, PW 0.30. Paratype minor: HW 0.32, HL 0.34, SL 0.24, EL 0.04, PW 0.22. Color Major and minor: yellow.
Range Known from the type locality; from near Belem, Para, Brazil; and from Tingo Maria, Amazonian Peru.
Biology Unknown.
Figure Upper: holotype, major. Lower: paratype, minor. BRAZIL: Manaus to Itacoatiara, Km 24, Amazonas (William L. Brown). Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 638
Output Selection and Observer Design for Boolean Control Networks: A Sub-Optimal Polynomial-Complexity Algorithm
Creators: name: Weiss, Eyal
name: Margaliot, Michael
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Using a graph-theoretic approach, we derive a new sufficient condition for observability of a Boolean control network (BCN). Based on this condition, we describe two algorithms: the first selects a set of nodes so that observing this set makes the BCN observable. The second algorithm builds an observer for the observable BCN. Both algorithms are sub-optimal, as they are based on a sufficient but not necessary condition for observability. Yet their time-complexity is linear in the length of the description of the BCN, rendering them feasible for large-scale networks. We discuss how these results can be used to provide a sub-optimal yet polynomial-complexity algorithm for the minimal observability problem in BCNs. Some of the theoretical results are demonstrated using a BCN model of the core network regulating the mammalian cell cycle.
description: arXiv admin note: text overlap with arXiv:1706.04072
Sulfatide activator protein : alternative splicing that generates three mRNAs and a newly found mutation responsible for a clinical disease
Creators: name: Sandhoff, K
name: Suzuki, K
name: Harzer, K
name: Holtschmidt, H
name: Nakano, T
name: Kwon, HY
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1991

description: The sulfatide activator protein, also known as SAP-1, is derived from a gene that generates an mRNA coding for four homologous proteins. Its physiological function is to stimulate hydrolysis of sulfatide by arylsulfatase A in vivo. A genetic defect in the sulfatide activator results in a metabolic disorder similar to classical metachromatic leukodystrophy, which is itself caused by a genetic defect in arylsulfatase A. In a patient with sulfatide activator deficiency, a nucleotide transversion G722----C (counted from A of the initiation codon ATG) was found in the mRNA of the sulfatide activator precursor, resulting in the substitution of serine for Cys241 in the mature sulfatide activator. The remainder of the coding sequence was completely normal except for a polymorphism C to T in position 1389, which does not change the amino acid sequence. The patient produces at least three different forms of mRNA for the precursor. Two of them include a stretch of an additional 9 and 6 bases, respectively, within the sulfatide activator coding region. In normal individuals this stretch of additional bases has also been observed. This could be explained by the presence of a small 9-base pair exon which can be introduced, or not, by alternative splicing as a stretch of 9 or 6 bases into the mature mRNA. The shortest form of the mRNA yields an active sulfatide activator (Fürst, W., Schubert, J., Machleidt, W., Meier, H. E., and Sandhoff, K. (1990) Eur. J. Biochem. 192, 709-714).
Nonlocal Orbital-Free kinetic pressure tensors for the Fermi gas
Creators: name: Palade, D. I.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A novel nonlocal density functional for the kinetic pressure tensor of a Fermi gas is derived. The functional is designed to reconcile the Quantum Hydrodynamic Model with the microscopic approaches, both for homogeneous equilibrium and dynamical regime. The derivation opens new ways to improve and implement further time-nonlocal functionals. The present proposal is systematically tested in and beyond the linear regime for the Fermi gas, as well as for some small sodium clusters, proving that it is quantitative superior to other existing functionals.
Kac-Moody Symmetries of Critical Ground States
Creators: name: Kondev, J.
name: Henley, C. L.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The symmetries of critical ground states of two-dimensional lattice models are investigated. We show how mapping a critical ground state to a model of a rough interface can be used to identify the chiral symmetry algebra of the conformal field theory that describes its scaling limit. This is demonstrated in the case of the six-vertex model, the three-coloring model on the honeycomb lattice, and the four-coloring model on the square lattice. These models are critical and they are described in the continuum by conformal field theories whose symmetry algebras are the $su(2)_{k=1}$, $su(3)_{k=1}$, and the $su(4)_{k=1}$ Kac-Moody algebra, respectively. Our approach is based on the Frenkel--Kac--Segal vertex operator construction of level one Kac--Moody algebras.
description: 42 pages, RevTex, 14 ps figures, Submitted to Nucl. Phys. B. [FS]
Unusual scaling in a discrete quantum walk with random long range steps
Creators: name: Sen, Parongama
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A discrete time quantum walker is considered in one dimension, where at each step, the translation can be more than one unit length chosen randomly. In the simplest case, the probability that the distance travelled is $\ell$ is taken as $P(\ell) = αδ(\ell-1) + (1-α) δ(\ell-2^n)$ with $n \geq 1$. Even the $n=1$ case shows a drastic change in the scaling behaviour for any $α\neq 0,1$. Specifically, $\langle x^2\rangle \propto t^{3/2}$ for $0 < α< 1$, implying the walk is slower compared to the usual quantum walk. This scaling behaviour, which is neither conventional quantum nor classical, can be justified using a simple form for the probability density. The decoherence effect is characterized by two parameters which vanish in a power law manner close to $α=0$ and $1$ with an exponent $\approx 0.5$. It is also shown that randomness is the essential ingredient for the decoherence effect.
description: 15 pages, 10 figures, version accepted in Physica A
Pheidole tachigaliae Wheeler
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole tachigaliae

description: Pheidole tachigaliae Wheeler
Pheidole tachigaliae Wheeler 192If: 148.
Types Mus. Comp. Zool. Harvard.
etymology L tachigaliae, referring to the plant on which the type colony was found.
Diagnosis A member of the tachigaliae group, characterized by very small size and 11-segmented antennae, this species is easily recognized by the following traits.
Major: dorsal surface of head longitudinally carinulate (not transversely carinulate as in other tachigaliae-group species); pronotal dorsum lightly sprinkled with foveolae, feebly shiny; propodeal spines short, stout and directed strongly backward. Minor: all of head and mesosoma foveolate and opaque.
Measurements (mm) Lectotype major: HW 0.64, HL 0.74, SL 0.32, EL 0.08, PW 0.40. Paralectotype minor: HW 0.34, HL 0.38, SL 0.28, EL 0.08, PW 0.22.
Color Major: concolorous medium yellow; vertex with a fuzzy, circular brown spot as illustrated. Minor: concolorous pale yellow.
Range Known from the type locality and from Kaw, French Guiana (Mark W. Moffett).
biology Found on the ant-plant Tachigalia.
Figure Upper: lectotype, major. Lower: paralectotype, minor. GUYANA: Kartabo (William M. Wheeler). Scale bars = 1 mm.
description: Published as part of Wilson, E. O., 2003, Pheidole in the New World. A dominant, hyperdiverse ant genus., Cambridge, MA :Harvard University Press on page 639