cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Accumulation of 1, 2-sn-diradylglycerol with increased membrane-associated protein kinase C may be the mechanism for spontaneous hepatocarcinogenesis in choline-deficient rats.
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Choline deficiency, via deprivation of labile methyl groups, is associated with a greatly increased incidence of hepatocarcinoma in experimental animals. This dietary deficiency also causes fatty liver, because choline is needed for hepatic secretion of lipoproteins. We hypothesized that fatty liver might be associated with the accumulation of 1,2-sn-diradylglycerol and subsequent activation of protein kinase C. Several lines of evidence indicate that cancers might develop secondary to abnormalities in protein kinase C-mediated signal transduction. We observed that rats fed a choline-deficient diet for 1, 6, or 27 weeks had increased hepatic concentrations of 1,2-diradylglycerol. At 1 and 6 weeks, hepatic plasma membrane from choline-deficient rats had increased concentrations of 1,2-sn-diacylglycerol and 1-alkyl, 2-acylglycerol, with the latter accounting for 20-26% of membrane 1,2-sn-diradylglycerol (as compared with only 2-5% in controls). Protein kinase C activity was increased in hepatic plasma membrane at 1 week of choline deficiency. By Western blotting there was an increase in the amount of protein kinase C zeta and a decrease in the amount of protein kinase C delta in liver at 1 week. By 6 weeks of choline deficiency, hepatic plasma membrane and cytosolic protein kinase C (PKC) activities were increased significantly, with increased amounts of hepatic plasma membrane protein kinase C alpha, and delta detected by Western blotting. Glycogen synthase activity in liver was diminished after 1 week of choline deficiency; this enzyme is inhibited by PKC-mediated phosphorylation. We suggest that choline deficiency perturbed PKC-mediated transmembrane signaling within liver and that this contributed to the development of hepatic cancer in these animals.
Meson retardation in deuteron photodisintegration above pi-threshold
Creators: name: Schwamb, M.
name: Arenhoevel, H.
name: Wilhelm, P.
name: Wilbois, T.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Photodisintegration of the deuteron above pi-threshold is studied in a coupled channel approach including N Delta- and pi d-channels with pion retardation in potentials and exchange currents. A much improved description of total and differential cross sections in the energy region between pi-threshold and 400-450 MeV is achieved.
description: 12 pages revtex including 5 postscript figures
Pheidole fiorii Emery
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole fiorii

description: Pheidole fiorii Emery
Pheidole fiorii Emery 1890c: 51.
Types Mus. Civ. Stor. Nat. Genova; Mus. Comp. Zool. Harvard.
Etymology Named after Andrea Fiori.
diagnosis A medium-sized member of the fallax group with extremely long propodeal spines and scapes in both castes. Major: occiput, lateral sections of the head, and posterior strip of pronotum rugoreticulate.
Minor: dorsal surface of head and almost all of mesosoma foveolate to some degree and opaque to subopaque, although the degree of foveolation is variable and parts of the head and promesonotum are often nearly smooth and shiny.
Similar to ajax, hector, jaculifera, and lourothi, differing in many details of body form, sculpturing, and pilosity. On variation, John T. Longino (1997) writes: "This species (or species complex) shows a common pattern of being darker at higher elevations... It also exhibits spatial variation in the pilosity of the major worker head. Collections from sea level to about 600 m on the Atlantic slope are yellow, and the major worker has the sides of head with abundant erect setae. Collections from higher elevations in Braulio Carrillo National Park are dark brown, and the major worker continues to have the sides of head with abundant erect setae. Collections from the Penas Blancas Valley are dark brown, and the major worker has the sides of head with sparse, appressed setae." Measurements (mm) Major (Lago Hula, Costa Rica): HW 1.48, HL 1.52, SL 1.24, EL 0.24, PW 0.68. Minor: HW 0.64, HL 0.92, SL 1.40, EL 0.18, PW 0.48.
Color Yellow to dark brown, with increasing elevation (see under Diagnosis above).
Range Atlantic slope and montane Costa Rica to 950 m.
biology Longino (1997) observes, as I have, that fiorii "inhabits mature wet forest understory. It makes hemispherical carton nests under individual leaves of palms, aroids, and other large-leaved plants. The nests are on the order of 10 cm across, and usually at head height or lower. Colonies appear to be monogynous and with a single nest." Longino notes also that fiorii has varied greatly in abundance at La Selva and Penas Blancas from one season or year to the next, for unknown reasons. At Penas Blancas he observed a nest being raided by a colony of the army-ant-like ponerine genus Simopelta.
Figure Upper: major. Lower: minor. COSTA RICA: Lago Hula, Heredia (E. O. Wilson). (The minor was compared with a syntype in the Museum of Comparative Zoology, Harvard University; type locality is Jimenez, Costa Rica; collected by Anastasio Alfaro.) 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 291
Splashback radius of nonspherical dark matter halos from cosmic density and velocity fields
Creators: name: Okumura, Teppei
name: Nishimichi, Takahiro
name: Umetsu, Keiichi
name: Osato, Ken
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the splashback features of dark-matter halos based on cosmic density and velocity fields. Besides the density correlation function binned by the halo orientation angle which was used in the literature, we introduce, for the first time, the corresponding velocity statistic, alignment momentum correlation function, to take into account the asphericity of halos. Using large-volume, high-resolution N-body simulations, we measure the alignment statistics of density and velocity. On halo scales, $x\sim R_\mathrm{200m} \sim 1Mpc/h$, we detect a sharp steepening in the momentum correlation associated with the physical halo boundary, or the splashback feature, which is found more prominent than in the density correlation. We also find that the splashback radius determined from the density correlation becomes $\sim 3.5\%$ smaller than that from the momentum correlation, with their correlation coefficient being 0.605. Moreover, the orientation-dependent splashback feature due to halo asphericity is measured when the density profile is determined by dark-matter particles, which can be used as a test of collisional CDM since the halo shape is predicted to be rounder in such a model.
description: 8 pages, 4 figures, published in PRD. This paper is a considerably extended version of the section on Splashback radius of arXiv:1706.08860
Conservation laws in the continuum $1/r^2$ systems
Creators: name: Römer, Rudolf A.
name: Shastry, B. Sriram
name: Sutherland, B.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the conservation laws of both the classical and the quantum mechanical continuum $1/r^2$ type systems. For the classical case, we introduce new integrals of motion along the recent ideas of Shastry and Sutherland (SS), supplementing the usual integrals of motion constructed much earlier by Moser. We show by explicit construction that one set of integrals can be related algebraically to the other. The difference of these two sets of integrals then gives rise to yet another complete set of integrals of motion. For the quantum case, we first need to resum the integrals proposed by Calogero, Marchioro and Ragnisco. We give a diagrammatic construction scheme for these new integrals, which are the quantum analogues of the classical traces. Again we show that there is a relationship between these new integrals and the quantum integrals of SS by explicit construction.
description: 19 RevTeX 3.0 pages with 2 PS-figures included
An Autonomous Surface Vehicle for Long Term Operations
Creators: name: Moulton, Jason
name: Karapetyan, Nare
name: Bukhsbaum, Sharon
name: McKinney, Chris
name: Malebary, Sharaf
name: Sophocleous, George
name: Li, Alberto Quattrini
name: Rekleitis, Ioannis
Publisher: name: arXiv
Year: 2018
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Environmental monitoring of marine environments presents several challenges: the harshness of the environment, the often remote location, and most importantly, the vast area it covers. Manual operations are time consuming, often dangerous, and labor intensive. Operations from oceanographic vessels are costly and limited to open seas and generally deeper bodies of water. In addition, with lake, river, and ocean shoreline being a finite resource, waterfront property presents an ever increasing valued commodity, requiring exploration and continued monitoring of remote waterways. In order to efficiently explore and monitor currently known marine environments as well as reach and explore remote areas of interest, we present a design of an autonomous surface vehicle (ASV) with the power to cover large areas, the payload capacity to carry sufficient power and sensor equipment, and enough fuel to remain on task for extended periods. An analysis of the design and a discussion on lessons learned during deployments is presented in this paper.
description: In proceedings of MTS/IEEE OCEANS, 2018, Charleston
A simple Dirac wave function for a Coulomb potential with linear confinement
Creators: name: Franklin, Jerrold
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A simple analytical solution is found to the Dirac equation for the combination of a Coulomb potential with a linear confining potential. An appropriate linear combination of Lorentz scalar and vector linear potentials, with the scalar part dominating, can be chosen to give a simple Dirac wave function. The binding energy depends only on the Coulomb strength, and is not affected by the linear potential. The method works for the ground state, or for the lowest state with $l=j-{1/2}$, for any $j$.
description: Misprints (mostly of sign) corrected in equations (8), (9), (13), (14), (18), and (21). No change in results or discussion
ПЕВЧЕСКОЕ ДЫХАНИЕ
Creators: name: Бабаева, Назира
Publisher: name: Zenodo
Year: 2024

description: Статья посвящена одной из актуальнейших проблем вокальной педагогики классификации типов певческого дыхания и использования их в процессе обучения пению. В статье раскрывается технология парадоксального дыхания как оптимального типа дыхания в пении.
Mechanisms for bacterial gliding motility on soft substrates
Creators: name: Tchoufag, Joël
name: Ghosh, Pushpita
name: Pogue, Connor B.
name: Nan, Beiyan
name: Mandadapu, Kranthi K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The motility mechanism of certain rod-shaped bacteria has long been a mystery, since no external appendages are involved in their motion which is known as gliding. However, the physical principles behind gliding motility still remain poorly understood. Using myxobacteria as a canonical example of such organisms, we identify here the physical principles behind gliding motility, and develop a theoretical model that predicts a two-regime behavior of the gliding speed as a function of the substrate stiffness. Our theory describes the elastic, viscous, and capillary interactions between the bacterial membrane carrying a traveling wave, the secreted slime acting as a lubricating film, and the substrate which we model as a soft solid. Defining the myxobacterial gliding as the horizontal motion on the substrate under zero net force, we find the two-regime behavior is due to two different mechanisms of motility thrust. On stiff substrates, the thrust arises from the bacterial shape deformations creating a flow of slime that exerts a pressure along the bacterial length. This pressure in conjunction with the bacterial shape provides the necessary thrust for propulsion. However, we show that such a mechanism cannot lead to gliding on very soft substrates. Instead, we show that capillary effects lead to the formation of a ridge at the slime-substrate-air interface, which creates a thrust in the form of a localized pressure gradient at the tip of the bacteria. To test our theory, we perform experiments with isolated cells on agar substrates of varying stiffness and find the measured gliding speeds to be in good agreement with the predictions from our elasto-capillary-hydrodynamic model. The physical mechanisms reported here serve as an important step towards an accurate theory of friction and substrate-mediated interaction between bacteria in a swarm of cells proliferating in soft media.
description: Main article (8 pages and 8 figures) and Supplementary Information
Gauge coupling unification with large extra dimensions
Creators: name: Dumitru, Daniel
name: Nandi, Satyanarayan
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We make a detailed study of the unification of gauge couplings in the MSSM with large extra dimensions. We find some scenarios where unification can be achieved (with the strong coupling constant at the Z mass within one standard deviation of the experimental value) with both the compactification scale and the SUSY breaking scale in the few TeV range. No enlargement of the gauge group or particle content is needed. One particularly interesting scenario is when the SUSY breaking scale is larger than the compactification scale, but both are small enough to be probed at the CERN LHC. Unification in two scales scenarios is also investigated and found to give results within the LHC.
description: 17 pages, 3 figures, some discussions added, few additional references included. Version to appear in Phys. Rev. D
Optimized delta expansion for relativistic nuclear models
Creators: name: Krein, G.
name: de Carvalho, R. S. Marques
name: Menezes, D. P.
name: Nielsen, M.
name: Pinto, M. B.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The optimized $δ$-expansion is a nonperturbative approach for field theoretic models which combines the techniques of perturbation theory and the variational principle. This technique is discussed in the $λϕ^4$ model and then implemented in the Walecka model for the equation of state of nuclear matter. The results obtained with the $δ$ expansion are compared with those obtained with the traditional mean field, relativistic Hartree and Hartree-Fock approximations.
description: 22 pages Latex, 3 ps figures, to appear in Z. Phys. A
Bidirectional excision in methyl-directed mismatch repair
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Using electron microscopy and indirect end-labeling methods, we have examined excision tracts produced by the Escherichia coli methyl-directed mismatch repair system on a closed circular G-T heteroduplex that contains a single d(GATC) site. Despite differing polarities of the unmodified strand in the two hemimethylated derivatives of the heteroduplex, that portion of the unmethylated strand spanning the shorter path between the d(GATC) site and mismatch is targeted for excision in both cases. Mismatch-provoked excision occurring on both hemimethylated DNAs requires DNA helicase II, but exonuclease requirements for the reaction depend on heteroduplex orientation. When the d(GATC) sequence on the unmodified strand resides 3' to the mismatch as viewed along the shorter path, excision requires exonuclease I. Excision occurring on the alternate hemimethylated heteroduplex depends on the 5'--> 3' hydrolytic activity of exonuclease VII. Coupled with the previous demonstration that repair initiates via the mismatch-provoked, MutHLS-dependent incision of the unmethylated strand at a d(GATC) sequence (Au, K.G., Welsh, K., and Modrich, P. (1992) J. Biol. Chem. 267, 12142-12148), these findings indicate an excision mechanism in which helicase II displacement renders the incised strand sensitive to the appropriate single-strand exonuclease. Our data imply that hydrolysis commences at the d(GATC) site, proceeds to a point beyond the mismatch, and terminates at a number of discrete sites within a 100-nucleotide region just beyond this site. The extent of excision is therefore controlled by one or more components of the repair system.
Determining the accuracy and repeatability of citizen-derived imagery as a source for Structure-from-Motion photogrammetry
Creators: name: Lusty, Michael
Publisher: name: Lancaster University
Year: 2019

description: Globally, sea levels are rising and continue to rise at an accelerating rate. Developments built near the coast are vulnerable from coastal flooding due to a direct rise in sea level and an increase in storm severity, persistence and frequency. As storm events become more prevalent and powerful they will consequently exacerbate the effects from rising sea levels and increase coastal flooding. It is therefore relevant for coastal managers to build and maintain a comprehensive understanding of the coast to predict what a future heightened sea level might bring. Building understanding at a time when resources are limited due to budget cuts is often difficult requiring cost-effective monitoring approaches. Citizen Science is a rapidly developing research method whereby scientific projects utilise public input at one or more stages of the research process. CS projects can tackle scientific research which often cannot be done by scientists alone due to human, financial, time and spatial constraints. Alongside the benefits afforded to scientific research, CS projects help in building scientific understanding within the public domain. By increasing public understanding of the coastal environment, citizens become more empowered to contribute towards coastal decisions. This project takes on the framework defined by CS by engaging a community group with data collection methods for coastal monitoring. Focus is placed on the Structure-from-Motion (SfM) photogrammetric workflow to build 3D models of the coastal environment using citizens and their personal standalone cameras or inbuilt smartphone cameras. This project aims to assess the accuracy of point clouds derived from citizen-derived imagery of a coastal environment and thus determine its potential as a source of data for coastal practitioners. It also aims to recognise the response from participating members of the public towards the SfM imaging procedure.
The Pressure in 2, 2+1 and 3 Flavour QCD
Creators: name: Karsch, F.
name: Laermann, E.
name: Peikert, A.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We calculate the pressure in QCD with two and three light quarks on a lattice of size 16^3x4 using tree level improved gauge and fermion actions. We argue that for temperatures T > 2T_c systematic effects due to the finite lattice cut-off and non-vanishing quark masses are below 15% in this calculation and give an estimate for the continuum extrapolated pressure in QCD with massless quarks. We find that the flavour dependence of the pressure is dominated by that of the Stefan-Boltzmann constant. Furthermore we perform a calculation of the pressure using 2 light (m_u,d/T=0.4) and one heavier quark (m_s/T = 1). In this case the pressure is reduced relative to that of three flavour QCD. This effect is stronger than expected from the mass dependence of an ideal Fermi gas.
description: 13 pages, LaTeX2e
Pheidole galba 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 galba

description: Pheidole galba new species
Types Mus. Comp. Zool. Harvard.
Etymology L galba, yellow.
diagnosis A member of the fallax group, close to huacana and oliveirai and distinguished as follows.
Major: yellow; rugoreticulum on each side of the head reaches from the anterior border of the head capsule to a third of the way from eye level to occiput level; at the posterior end the rugoreticula give way to short carinulae that travel obliquely backward toward the sides of the head; rear half of posterior venter of head smooth; posterior third of dorsal surface of head mostly smooth but sprinkled with foveae; vertex rugulose and carinulate; propodeal spines well developed; postpetiolar dorsum smooth. Minor: propodeal spines well developed; occiput narrowed, with nuchal collar. measurements (mm) Holotype major: HW 1.82, HL 1.92, SL 1.02, EL 0.26, PW 0.84. Paratype minor: HW 0.72, HL 0.84, SL 1.04, EL 0.18, PW 0.50. Color Major: light reddish yellow. Minor: clear medium yellow.
range Known only from the type locality and the Cocha Cashu Biological Station, Manu National Park; also in Madre de Dios, Peru.
biology Two colonies collected at Cuzco Amazonico were nesting in clay soil of terra firme forest. One of the nests was surmounted by a castle-like superstructure of soil particles.
Figure Upper: holotype, major. Lower: paratype, minor. PERU: Cuzco Amazonico, 15 km northeast of Puerto Maldonado, Madre de Dios (Stefan Cover and John E. Tobin). 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 292
Omega_{ccc} production via fragmentation at LHC
Creators: name: Saleev, V. A.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the framework of the leading order of perturbative QCD and the nonrelativistic quark-diquark model of baryons we have obtained fragmentation function for c-quark to split into Omega_{ccc} baryon. It is shown that at LHC one can expect 3.5 10^3 events with Omega_{ccc} at p_t>5 GeV/c and -1
description: LaTex, 5 pages and 2 figures. Talk presented at XIV Workshop on High Energy Physics and Quantum Field Theory, Moscow, May 27 - June 4, 1999
Spin density wave selection in the one-dimensional Hubbard model
Creators: name: Samson, J H
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The Hartree-Fock ground state phase diagram of the one-dimensional Hubbard model is calculated, constrained to uniform phases, which have no charge density modulation. The allowed solutions are saturated ferromagnetism (FM), a spiral spin density wave (SSDW) and a double spin density wave} (DSDW). The DSDW phase comprises two canted interpenetrating antiferromagnetic sublattices. FM occurs for small filling, SSDW in most of the remainder of the phase diagram, and DSDW in a narrow tongue near quarter (and three-quarter) filling. Itinerant electrons lift the degeneracy with respect to canting angle in the DSDW. The Hartree-Fock states are metallic except at multiples of a quarter filling. Near half filling the uniform SSDW phase is unstable against phase separation into a half-filled antiferromagnetic phase and a hole-rich SSDW phase. The dependence of the ground state wave number on chemical potential is conjectured to be a staircase. Comparison is made with higher dimensional Hubbard models and the $J_{1}-J_{2}$ Heisenberg model.
description: 15 pages LaTeX, 5 Postscript figures in uuencoded file. To appear in J Phys: Condensed Matter. Requires files ioplppt.sty, iopl10.sty, iopl12.sty (available at http://www.ioppublishing.com/Journals/texstyle.html)
Planet-Planet Tides in the TRAPPIST-1 System
Creators: name: Wright, Jason T.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The star TRAPPIST-1 hosts a system of seven transiting, terrestrial exoplanets apparently in a resonant chain, at least some of which are in or near the Habitable Zone. Many have examined the roles of tides in this system, as tidal dissipation of the orbital energy of the planets may be relevant to both the rotational and orbital dynamics of the planets, as well as their habitability. Generally, tides are calculated as being due to the tides raised on the planets by the star, and tides raised on the star by the planets. I write this research note to point out a tidal effect that may be at least as important as the others in the TRAPPIST-1 system and which is so far unremarked upon in the literature: planet-planet tides. Under some reasonable assumptions, I find that for every planet $p$ in the TRAPPIST-1 system there exists some other planet $q$ for which the planet-planet dynamical tidal strain is within an order of magnitude of the stellar eccentricity tidal strain, and that the effects of planet $f$ on planet $g$ are in fact greater than that of the star on planet $g$. It is thus not obvious that planet-planet tides can be neglected in the TRAPPIST-1 exoplanetary system, especially the tides on planet $g$ due to planet $f$, if the planets are in synchronous rotation.
description: 3 pp Research Note of the AAS. v.2 contains additional citation to prior art by Lingam & Loeb (2018) Astrobiology 18, 967
Pheidole gigas 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 gigas

description: Pheidole gigas new species
types Mus. Comp. Zool. Harvard.
Etymology L gigas, giant.
diagnosis A large member of the fallax group most similar to obscurithorax of Argentina (and exotic in the southern U. S.), and somewhat less so to the fallax, jelskii, and puttemansi, differing as follows.
Major: robust; hypostoma 2-toothed; entire head heavily sculptured, with genae, venter, and broad median strip (including frontal lobes) longitudinally carinulate and most of the remainder, from genae to occiput, rugoreticulate; most of pronotal and propodeal dorsa transversely carinulate; anterior strip of first gastral tergite shagreened; promesonotal convexity in dorsal-oblique view strongly lobose and directed posteriorly; petiolar peduncle very thick, petiolar node low; postpetiole laterally angulate, scape broadened at insertion.
Minor: occiput narrow, with nuchal collar; head and pronotum shiny; propodeal spines reduced to denticles. Measurements (mm) Holotype major: HW 2.00, HL 1.96, SL 1.06, EL 0.24, PW 0.94. Paratype minor: HW 0.60, HL 0.80, SL 1.00, EL 0.16, PW 0.46.
Color Major: gaster and postpetiole dark reddish brown, rest of body medium reddish brown.
Minor: gaster dark reddish brown, rest of body light to medium reddish brown.
Range Known only from the type locality and from Manaus, Amazonas, Brazil (J. C Trager).
Biology The type colony was collected in cerrado, or tropical savanna. A seed cache was found in the nest.
figure Upper: holotype, major. Lower: paratype, minor. BRAZIL: Mun. Anapolis, km 46 on road to Goiania, Goias (William L. and Doris E. 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 293
Binding-incompetent adenovirus facilitates molecular conjugate-mediated gene transfer by the receptor-mediated endocytosis pathway
Creators: name: Hu, Ping-chuan
name: Michael, Sharon I
name: Huang, CH
name: Curiel, David T
name: Rømer, MU
name: Wagner, Ernst
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: Molecular conjugate vectors may be constructed that accomplish high efficiency gene transfer by the receptor-mediated endocytosis pathway. In order to mediate escape from lysosomal degradation, we have incorporated adenoviruses into the functional design of the conjugate. In doing so, however, we have introduced an additional ligand, which can bind to receptors on the cell surface, undermining the potential for cell specific targeting. To overcome this, we have treated the adenovirus with a monoclonal anti-fiber antibody, which renders the virus incapable of binding to its receptor. The result is a multi-functional molecular conjugate vector, which has preserved its binding specificity while at the same time being capable of preventing lysosomal degradation of endosome-internalized conjugate-DNA complexes. This finding indicates that adenoviral binding is not a prerequisite for adenoviral-mediated endosome disruption.
Semiclassical Treatment of High-Lying Electronic States of H$_2^+$
Creators: name: Price, T. J.
name: Greene, Chris H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: This work reports quantum mechanical and semiclassical WKB calculations for energies and wave functions of high-lying $^2Σ$ states of H$_2^+$ in atomic units. The high-lying states presented lie in an unexplored regime, corresponding asymptotically to H $(n\leq 145)$ plus a proton, with $R\leq 120,000$ $a_0$. We compare quantum mechanical energies, spectroscopic constants, dipole matrix elements, and phases with semiclassical results and demonstrate a good level of agreement. The quantum mechanical phases are determined by using Milne's phase-amplitude procedure. Our semiclassical energies for low-lying states are compared with those published previously in the literature.
Cell- and heparin-binding domains of the hexabrachion arm defined by tenascin expression proteins
Creators: name: Erickson, Harold P
name: Aukhil, Ikramuddin
name: Yan, Yingzhuo
name: Joshi, Paritosh
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: We have produced a set of bacterial expression proteins corresponding to 10 segments of tenascin and two of fibronectin and tested them for heparin binding and cell adhesion. We used polymerase chain reaction cloning to terminate the segments precisely at domain boundaries. Heparin binding activity was mapped to two different tenascin segments: one comprising the fourth and fifth fibronectin type III domains, and to TNfbg, the fibrinogen-like terminal knob. TNfbg, but none of the other tanascin segments, also supported adhesion of primary rat embryo skin fibroblasts. The fibroblasts did not spread on TNfbg but remained rounded. Cell binding to TNfbg occurred in the presence or absence of divalent cations and was not inhibited by RGD peptides, suggesting that integrins are not involved. Fibroblast binding to TNfbg was strongly inhibited by soluble heparin, by treating the cells with heparitinase, or by culture conditions that cause undersulfation of proteoglycans. These observations suggest that cell attachment to TNfbg is mediated by cell surface proteoglycans. We have also made full-length cDNA constructs for the largest and smallest splice variants of human tenascin, as well as one truncated after the 14th epidermal growth factor-like domain, in the pNUT mammalian cell expression vector. Stably transfected baby hamster kidney cell lines secreted large quantities of tenascin, and this was assembled into normal hexabrachions, the arm length corresponding to the construct.
Broadband excitation spectrum of bulk crystals and thin layers of PtTe$_2$
Creators: name: Ghosh, Barun
name: Alessandro, Francesca
name: Zappia, Marilena
name: Brescia, Rosaria
name: Kuo, Chia-Nung
name: Lue, Chin Shan
name: Chiarello, Gennaro
name: Politano, Antonio
name: Caputi, Lorenzo S.
name: Agarwal, Amit
name: Cupolillo, Anna
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We explore the broadband excitation spectrum of bulk PtTe$_2$ using electron energy loss spectroscopy and density functional theory. In addition to infrared modes related to intraband 3D Dirac plasmon and interband transitions between the 3D Dirac bands, we observe modes at 3.9, 7.5 and 19.0 eV in the ultraviolet region. The comparison of the excitation spectrum with the calculated orbital-resolved density of states allows us to ascribe spectral features to transitions between specific electronic states. Additionally, we study the thickness dependence of the high-energy plasmon in the PtTe2 thin films. We show that, unlike graphene, the high-energy plasmon in PtTe2 thin film gets red-shifted by 2.5 eV with increasing thickness.
description: 9 pages with 7 figures
Pheidole gouldi
Creators: name: Wilson, E. O.
Publisher: name: Harvard University Press
Year: 2003
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Formicidae
Pheidole
Pheidole gouldi

description: Pheidole goiddi Forel
Pheidole gouldi Forel 1886b: xlii.
Types Mus. Hist. Nat. Geneve; Mus. Comp. Zool. Harvard.
Etymology Eponymous, no attribution given.
Diagnosis A member of the fallax group instantly recognizable by the following traits.
Major: reddish yellow; entire body covered by short, bristle-like, exclusively erect hairs that on each body part are approximately of equal length; all of head, mesosoma, and waist foveolate and opaque; all of first gastral tergite and posterior strips of succeeding tergites very finely shagreened and opaque, and first gastral tergite often with bluish reflections; antennal scape reaches halfway from level of eye to level of occiput; postpetiolar node from above elliptical.
Minor: occiput drawn out into a long neck, with nuchal collar; all of head, mesosoma, and waist foveolate and opaque; all of first gastral tergite and posterior strips of succeeding tergites shagreened and opaque.
Measurements (mm) Major (Palo Verde, Costa Rica): HW 1.66, HL 1.72, SL 1.32, EL 0.24, PW 0.78. Minor (Palo Verde, Costa Rica): HW 0.78, HL 1.04, SL 1.42, EL 0.22, PW 0.52.
color Major: body and appendages light reddish yellow ("orange") except for the gaster, which is medium reddish yellow; first gastral tergite has in addition bluish reflections.
Minor: body medium yellowish brown, appendages light yellowish brown.
Range Recorded from Campeche and Yucatan, Mexico; Guatemala; Honduras; and the northwestern lowlands of Costa Rica.
Biology In Costa Rica, according to Longino (1997), gouldi is an inhabitant of seasonally dry habitats. He has encountered it in the xeric scrub of Santa Rosa National Park and along roadsides. In Campeche, Mexico, I found a colony in a double-cratered nest in dense bushes of a moist thorn woodland.
Figure Upper: major. Lower: minor. COSTA RICA: Rio Tempisque, Palo Verde, Guanacaste (Charles Kugler). (Compared with syntypes.) 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 294
Large insulating nitride islands on Cu3Au as a template for atomic spin structures
Creators: name: Gobeil, Jeremie
name: Coffey, David
name: Wang, Shang Jen
name: Otte, Alexander F.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present controlled growth of c(2$\times$2)N islands on the (100) surface of Cu$_3$Au, which can be used as an insulating surface template for manipulation of magnetic adatoms. Compared to the commonly used Cu(100)/c(2$\times$2)N surface, where island sizes do not exceed several nanometers due to strain limitation, the current system provides better lattice matching between metal and adsorption layer, allowing larger unstrained islands to be formed. We show that we can achieve island sizes ranging from tens to hundreds of nanometers, increasing the potential building area by a factor 10$^3$. Initial manipulation attempts show no observable difference in adatom behaviour, either in manipulation or spectroscopy.
Gauge-invariant theory of pion photoproduction with dressed hadrons
Creators: name: Haberzettl, Helmut
Publisher: name: arXiv
Year: 1997
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on an effective field theory of hadrons in which quantum chromodynamics is assumed to provide the necessary bare cutoff functions, a gauge-invariant theory of pion photoproduction with fully dressed nucleons is described. The formalism provides consistent dynamical descriptions of pi-N --> pi-N scattering and Gamma-N --> pi-N production mechanisms in terms of nonlinear integral equations for fully dressed hadrons. The dressed hadron currents and the pion photoproduction current satisfy gauge invariance in a self-consistent manner. Approximations are discussed that make the nonlinear formalism manageable in practice and yet preserve gauge invariance.
description: 7 pages, RevTeX; includes 8 postscript figures (requires psfig.sty). Invited talk given at MENU97, 7/28--8/1/97, Vancouver, B.C., Canada; to appear in the conference proceedings
Computation of the Vortex Free Energy in SU(2) Gauge Theory
Creators: name: Kovacs, T. G.
name: Tomboulis, E. T.
Publisher: name: arXiv
Year: 2000
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present the first measurement of the vortex free-energy order parameter at weak coupling for SU(2) in simulations employing multihistogram methods. The result shows that the excitation probability for a sufficiently thick vortex in the vacuum tends to unity. This is rigorously known to provide a necessary and sufficient condition for maintaining confinement at weak coupling in SU(N) gauge theories.
description: 7 pages, LaTeX with 3 eps figures, minor changes, replacement of Fig. 3
Search for CP Violation with a Neutrino Factory
Creators: name: Tanimoto, Morimitsu
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We have discussed the search of the genuine CP violation in a neutrino factory, in which well known neutrino beams are provided by a high intensity muon storage ring. Both $ΔP(\n_\a \Ar \n_\b)$ and CP odd asymmetry $A_{CP}$ in neutrino oscillations are investigated by taking account of the atmospheric neutrino data and the solar neutrino data. If the large mixing angle MSW solution is taken, the magnitude of $ΔP(\n_e \Ar \n_\m)$ could be 1%. If $s_{13}$ is lower than 0.05 with the maximal CP violating phase, the matter effect is negligible in $ΔP(\n_e \Ar \n_\m)$ and $A_{CP}$. We have proposed how to extract the genuine CP violation effect in the three family scheme from the neutrino oscillation data $ΔP(\n_e \Ar \n_\m)$, $ΔP(\n_\m \Ar \n_e)$ and $ΔP(\n_e \Ar \n_τ)$.
description: LaTeX, 16 pages, 5 figures, Added references, A comment about matter density is added
Cell spreading on extracellular matrix proteins induces tyrosine phosphorylation of tensin
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: A small number of proteins becomes tyrosine-phosphorylated in response to integrin-mediated cell adhesion to extracellular matrix proteins. Previous work has identified two of these tyrosine-phosphorylated proteins as the focal adhesion kinase and paxillin. Here we identify a third focal adhesion protein, tensin, that becomes tyrosine-phosphorylated during cell adhesion to extracellular matrix proteins. The tyrosine phosphorylation of tensin does not occur when cells adhere to plastic or polylysine and is blocked when microfilament assembly and cell spreading are inhibited with cytochalasin D. In addition, we show that other focal adhesion proteins such as talin and vinculin do not become tyrosine-phosphorylated under the same conditions of cell spreading on extracellular matrix proteins.
ФОРТЕПИАННАЯ МУЗЫКА В ТВОРЧЕСКОМ НАСЛЕДИИ П.И. ЧАЙКОВСКОГО
Creators: name: Ахмедова, Махфуза
Publisher: name: Zenodo
Year: 2024

description: В статье рассматривается фортепианные произведения Чайковского, их художественно-выразительные и композиционные особенности и свойства; произведения Чайковского как принципиально важная составная часть учебного репертуара учащихся-пианистов и музыковедов.
Fast Algorithms For Josephson Junction Arrays : Bus--bars and Defects
Creators: name: Datta, Sujay
name: Das, Shantilal
name: Sahdev, Deshdeep
name: Mehrotra, Ravi
name: Shenoy, Subodh R.
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We critically review the fast algorithms for the numerical study of two--dimensional Josephson junction arrays and develop the analogy of such systems with electrostatics. We extend these procedures to arrays with bus--bars and defects in the form of missing bonds. The role of boundaries and of the guage choice in determing the Green's function of the system is clarified. The extension of the Green's function approach to other situations is also discussed.
description: Uuencoded 1 Revtex file (11 Pages), 3 Figures : Postscript Uuencoded
title: An Examination of Individual Differences in Monitoring for Automation Failures
Creators: name: DeVries, Holly
Publisher: name: Old Dominion University
Year: 2001

description: Automation-induced complacency has been documented as a cause or contributing factor in many airplane accidents throughout the last two decades. It is surmised that the condition results when a crew is working in highly reliable automated environments in which they serve as supervisory controllers monitoring system states for occasional automation failures. Although many reports have discussed the dangers of complacency, little empirical research has been produced to substantiate its harmful effects on performance as well as what factors produce complacency. There have been some suggestions, however, that individual characteristics could serve as possible predictors of performance in automated systems.

The present study examined the relationship between the individual differences of complacency potential, boredom proneness, and cognitive failure with automation induced complacency. Workload and boredom scores were also collected and analyzed in relation to the three individual differences. The results of the study demonstrated that there are personality predispositions that influence whether an individual will succumb to automation-induced complacency. Theoretical and practical implications are discussed.
Characterization of the DNA-binding domain of the mouse uterine estrogen receptor using site-specific polyclonal antibodies
Creators: name: The University of North Carolina at Chapel Hill University Libraries
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1993

description: The DNA-binding domain of the mouse uterine estrogen receptor (ER) was characterized using site-specific polyclonal antibodies. The peptides used as antigens have sequences corresponding to amino acids 185-199 and 227-245, the two zinc finger regions of the DNA-binding domain of the human ER, and produced anti-sera designated A-1542 and A-1554, respectively. Mouse uterine nuclear ER and salt-activated 4 S cytosol receptor, as well as 8 S untransformed cytosol receptor, were observed to react with the antisera by Western blot and sucrose density gradient centrifugation analyses indicating that the DNA-binding domain of the 8 S cytosol receptor is not completely masked by heat shock protein 90 or other proteins. Only A-1554 detected a nuclear-specific doublet form of the ER on Western blot analysis. In a gel shift assay, neither antisera altered the pattern of the nuclear ER interaction with the vitellogenin A2 estrogen response element (VRE). In contrast, antiserum A-1554 partially shifted the 8 S cytosol receptor-VRE complex. This concurs with mutational analysis and x-ray crystallography studies with the human ER that have shown that the second finger is not in contact with the DNA. The results of the gel shift assay were confirmed by sucrose density gradient analysis using the same buffer conditions. The nuclear receptor-VRE complex did not react with either antisera, suggesting that when the dimeric nuclear receptor form binds the VRE, the specific receptor epitopes involved with the DNA binding may be blocked and unable to bind the antisera. The cytosol receptor-VRE complex reacted only partially with the second finger antisera A-1554, suggesting that on receptor monomers the second finger epitope is not completely blocked by DNA binding or dimer formation.
Pheidole gulo 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 gulo

description: Pheidole gulo new species
Types Mus. Comp. Zool. Harvard.
Etymology L gulo, glutton, wolverine.
diagnosis A member of the fallax group somewhat similar to cockerelli and perpilosa (see also the less similar species listed with them), but easily distinguished as follows.
Major: yellow; almost entire dorsal and lateral surfaces of head rugoreticulate, including frontal lobes, as illustrated; almost all of mesosoma and waist foveolate and opaque; pronotal dorsum in addition rugoreticulate; dorsa of petiolar and postpetiolar nodes in addition faintly carinulate; anterior fringe of central strip of first gastral tergite shagreened; pronotal profile in dorsal-oblique view bilobous; postpetiole from above diamond-shaped.
Minor: yellow; dorsal surface of head, mesosoma, and waist foveolate and opaque; anterior strip of pronotal dorsum rugulose; occiput narrowed but at most with a very thin nuchal collar; mesonotal convexity very prominent. Measurements (mm) Holotype major: HW 1.46, HL 1.52, SL 1.00, EL 0.22, PW 0.76. Paratype minor: HW 0.62, HL 0.74, SL 1.00, EL 0.16, PW 0.44.
Color Major: body medium reddish yellow ("orange"), appendages light reddish yellow.
Range Known only from the type locality.
Biology Unknown.
Figure Upper: holotype, major. Lower: paratype, minor. NICARAGUA: Rio Kukra (Ivette Perfecto). 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 295