cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cross-disciplinary survey of access and assessment criteria of "Best Paper" awards – PROTOCOLUntitled
Creators: name: Lagisz, Malgorzata
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Arts and Humanities
subject: Law
subject: FOS: Law
subject: Life Sciences
subject: Business
subject: Medicine and Health Sciences
subject: Engineering
subject: Social and Behavioral Sciences
subject: Education
subject: Architecture
subject: FOS: Civil engineering
subject: Physical Sciences and Mathematics
subject: academia
subject: awards
subject: meta-research
subject: meta-science
subject: open science
subject: recognition

description: Aims - To examine eligibility and assessment criteria of research publication recognition awards. - To evaluate potential gender and country biases in the lists of past awardees of the above awards. - To communicate the need for improving awards policies and how this can be done – ultimately making individual publication-related awards more equitable.
Physical mapping of adeno-associated virus serotype 4 DNA.
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: 1980

description: The organization of adeno-associated virus serotype 4 (AAV 4) DNA was probed by using restriction enzymes. The cleavage sites of the following enzymes were mapped: BglII, BamI, HincII, KpnI, PstI, SalI, SstI, and XhoI. The orientation of transcription on the physical cleavage map was determined by locating the fragments which contain the 3' end of the mRNA. Strand separation gels were run for HinII fragments of AAV 4 DNA. By hybridizing AAV 4 mRNA to the resolved strands, the polarity of the DNA strands was identified. Restriction digestion of AAV 4 DNA sometimes produced terminal fragments which migrated in agarose gels as doublets. However, when AAV 4 DNA was prepared devoid of any single-stranded nicks, these terminal doublet bands were not observed upon subsequent restriction analysis. During these studies, the molecular weights of both AAV 4 and AAV 2 duplex DNA were measured and were found to be somewhat larger than previously reported (3.18 x 10(6) and 3.10 x 10(6), respectively).
Una nuova lettura del carme 147 di Giovanni Geometra
Creators: name: Donadio, Elena
Publisher: name: Parekbolai. An Electronic Journal for Byzantine Literature
Year: 2023
Subjects: John Geometres; Nicephorus Phocas; Homeric quotation

description: In this article, the attack against Theophano in exametric poem 147 by John Geometres is taken into consideration. Starting from L.R.Cresci’s reading, this contribution sheds light on the myth of Agamemnon’s murder in different sources, confirming that through an Homeric quotation the poet is attacking John Tsimisces as well. It aims at demonstrating that the choice of the Homeric narration of the myth has a significance that goes beyond the literary hommage to the Poet, turning the quotation into a political instrument.
description: Parekbolai. An Electronic Journal for Byzantine Literature, Vol 13 (2023)
Elasticity and mechanical instability of charged lipid bilayers in ionic solutions
Creators: name: Avital, Yotam Y.
name: Grønbech-Jensen, Niels
name: Farago, Oded
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: We use coarse-grained Monte Carlo simulations to study the elastic properties of charged membranes in solutions of monovalent and pentavalent counterions. The simulation results of the two cases reveal trends opposite to each other. The bending rigidity and projected area increase with the membrane charge density for monovalent counterions, while they decrease for the pentavalent ions. These observations can be related to the counterion screening of the lipid charges. While the monovalent counterions only weakly screen the Coulomb interactions, which implies a repulsive Coulomb system, the multivalent counterions condense on the membrane and, through spatial charge correlations, make the effective interactions due the charged lipids attractive. The differences in the elastic properties of the charged membranes in monovalent and multivalent counterion solutions are reflected in the mechanisms leading to their mechanical instability at high charge densities. In the former case, the membranes develop pores to relieve the electrostatic tensile stresses, while in the latter case, the membrane exhibit large wavelength bending instability.
description: 10 pages, 6 figures, to appear in Eur. Phys. J. E
Singularly Perturbed Stochastic Hybrid Systems: Stability and Recurrence via Composite Nonsmooth Foster Functions
Creators: name: Poveda, Jorge I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We introduce new sufficient conditions for verifying stability and recurrence properties in singularly perturbed stochastic hybrid dynamical systems. Specifically, we focus on hybrid systems with deterministic continuous-time dynamics that exhibit multiple time scales and are modeled by constrained differential inclusions, as well as discrete-time dynamics modeled by constrained difference inclusions with random inputs. By assuming regularity and causality of the dynamics and their solutions, respectively, we propose a suitable class of composite nonsmooth Lagrange-Foster and Lyapunov-Foster functions that can certify stability and recurrence using simpler functions related to the slow and fast dynamics of the system. We establish the stability properties with respect to compact sets, while the recurrence properties are studied only for open sets.
Polypeptide synthesis and phosphorylation in Epstein-Barr virus-infected cells.
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: 1980

description: Epstein-Barr virus superinfection of the human lymphoblastoid cell line Raji, a Burkitt lymphoma-derived line that contains Epstein-Barr virus genomes in an episomal form, results in the sequential synthesis of 29 detectable proteins, which range in molecular weight from approximately 155,000 to 21,000, and in the shutoff of the bulk of host protein synthesis within 6 to 9 h after infection. There are three classes of virus-induced proteins; these are an early class, consisting of eight proteins synthesized by 6 h postinfection, an intermediate class, containing two proteins synthesized 9 h postinfection, and a late class, consisting of five proteins synthesized 12 h postinfection. In addition, there is a fourth class of polypeptides, called persistent, that are found both before and after superinfection. The rates of synthesis of the proteins fall into three patterns; these are pattern A, in which the rate of synthesis decreases, pattern B, in which the rate of synthesis remains steady, and pattern C, in which the rate of synthesis increases after the initial appearance of the polypeptide. Both 9-(2-hydroxy-ethoxymethyl)guanine (acyclovir) and phosphonoacetic acid inhibit the appearance of one intermediate protein and at least three late proteins. Seven polypeptides are phosphorylated at different times after infection.
Time-dependent modelling of PKS 2155-304 in a low state
Creators: name: Petropoulou, Maria
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We apply both leptonic and leptohadronic emission scenarios for modelling the multiwavelength photon spectra and the observed variability in the optical, X-ray, and TeV gamma-ray energy bands of blazar PKS 2155-304 while being in a low state between 25 August and 6 September 2008. We consider three emission models, i.e. a one-component synchrotron self-Compton model (1-SSC), a one-zone proton synchrotron model (LHs), and a two-component SSC model (2-SSC). Only in the first scenario can the emission from the optical up to TeV gamma-rays be attributed to a single particle population from one emission region. Using a time-dependent numerical code that solves the kinetic equations for each particle species, we derived, in all cases, acceptable fits to the time-averaged SED. By imposing variations to one (or more) model parameters according to observed variability pattern in one (or more) frequencies we calculated the respective light curves and compared them with the observations. We show that the 1-SSC model cannot account for the anticorrelation observed between the X-rays and VHE gamma-rays, although it can explain the time-averaged SED. The anticorrelation can be more naturally explained by the two-component emission models. Both of them reproduce satisfactorily the optical, X-ray, and TeV variability but at the cost of additional free parameters, which from four in the 2-SSC model increase to six in the LHs model. Although the results of our time-resolved analysis do not favour one of the aforementioned models, they suggest that a two-component scenario is more adequate for the emission of PKS 2155-304 in the low state of 2008, which agrees with a recent independent analysis. This suggests that the quiescent blazar radiation might result from a superposition of the radiation from different components, while a flare might still be the result of a single component.
description: 11 pages, 10 figures, 2 tables, 1 appendix, accepted in A&A, shorter abstract than the accepted version
Magnetism and metal-insulator transition in oxygen deficient SrTiO$_3$
Creators: name: Lopez-Bezanilla, Alejandro
name: Ganesh, P.
name: Littlewood, Peter B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: First-principles calculations to study the electronic and magnetic properties of bulk, oxygen-deficient SrTiO$_3$ (STO) under different doping conditions and densities have been conducted. The appearance of magnetism in oxygen-deficient STO is not determined solely by the presence of a single oxygen vacancy but by the density of free carriers and the relative proximity of the vacant sites. We find that while an isolated vacancy behaves as a non-magnetic double donor, manipulation of the doping conditions allows the stability of a single donor state, with emergent local moments coupled ferromagnetically by carriers in the conduction band. Strong local lattice distortions enhance the binding of this state. The energy of the in-gap local moment can be further tuned by orthorhombic strain. Consequently we find that the free-carrier density and strain are fundamental components to obtaining trapped spin-polarized electrons in oxygen-deficient STO, which may have important implications in the design of optical devices.
description: 5 pages, 3 figures, Figure 2 amended
Nonlocality, No-Signalling and Bell's Theorem investigated by Weyl's Conformal Differential Geometry
Creators: name: De Martini, Francesco
name: Santamato, Enrico
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The principles and methods of the Conformal Quantum Geometrodynamics (CQG) based on the Weyl's differential geometry are presented. The theory applied to the case of the relativistic single quantum spin 1/2 leads a novel and unconventional derivation of Dirac's equation. The further extension of the theory to the case of two spins 1/2 in EPR entangled state and to the related violation of Bell's inequalities leads, by an exact albeit non relativistic analysis, to an insightful resolution of all paradoxes implied by quantum nonlocality.
description: arXiv admin note: text overlap with arXiv:1203.0033
Epstein-Barr virus polypeptides: effect of inhibition of viral DNA replication on their synthesis.
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: 1981

description: After Epstein-Barr virus superinfection of the human lymphoblastoid cell line Raji, a Burkitt lymphoma-derived line that contains Epstein-Barr virus genomes in an episomal form, at least 40 polypeptides could be resolved by polyacrylamide gel electrophoresis. Eleven of the 40 polypeptides were immunoprecipitable by early antigen+/viral capsid antigen+ antiserum. The polypeptides could be divided into six classes, immediate-early, early, intermediate, late, very late, and persistent, depending upon the time of synthesis. Ten of the 40 polypeptides appeared to preexist before superinfection and persisted despite general cessation of host protein synthesis; none of the persistent proteins was immunoprecipitated by the Epstein-Barr virus antibody-containing serum. When viral DNA replication was blocked by a variety of inhibitors of DNA synthesis, a number of different patterns of polypeptide synthesis could be detected. The synthesis of six polypeptides was blocked by the most virus-specific inhibitors, acyclovir and phosphonoacetic acid. Additionally, in the presence of 1-beta-D-arabinofuranosylcytosine, 1-beta-D-arabinofuranosyladenine, and methotrexate, seven polypeptides showed oversynthesis.
Supplementary Table.doc
Creators: name: Cao, Bingyan
name: Liu, Meijuan
name: Zhang, Yingxian
name: Chen, JiaJia
name: Li, Xiaoqiao
name: Su, Chang
name: Yang, Wei
name: Liu, Min
name: Wu, Di
name: Li, Wenjing
name: Liang, Xuejun
name: Wang, Qiao
name: Wei, Haiyan
name: Gong, Chunxiu
Publisher: name: figshare
Year: 2022
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: Supplementary Table 1 Positive rate of different MODY screening criteria Supplementary Table 2 The clinical and genetic characteristics of MODY in two cohorts (gray lines represent the cohort 2)
Epstein-Barr Virus Polypeptides: Identification of Early Proteins and Their Synthesis and Glycosylation
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: 1981

description: We have identified at least six early polypeptides induced by Epstein-Barr virus in cells or under conditions which are nonpermissive for Epstein-Barr virus DNA replication ranging in molecular weight from 140,000 to 26,000.
Bilayer-induced asymmetric quantum Hall effect in epitaxial graphene
Creators: name: Iagallo, Andrea
name: Tanabe, Shinichi
name: Roddaro, Stefano
name: Takamura, Makoto
name: Sekine, Yoshiaki
name: Hibino, Hiroki
name: Miseikis, Vaidotas
name: Coletti, Camilla
name: Piazza, Vincenzo
name: Beltram, Fabio
name: Heun, Stefan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The transport properties of epitaxial graphene on SiC(0001) at quantizing magnetic fields are investigated. Devices patterned perpendicularly to SiC terraces clearly exhibit bilayer inclusions distributed along the substrate step edges. We show that the transport properties in the quantum Hall regime are heavily affected by the presence of bilayer inclusions, and observe a significant departure from the conventional quantum Hall characteristics. A quantitative model involving enhanced inter-channel scattering mediated by the presence of bilayer inclusions is presented that successfully explains the observed symmetry properties.
Mechanism of coliphage M13 contraction: intermediate structures trapped at low temperatures.
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: 1981

description: The filamentous coliphage M13 can be transformed into a spherical particle (termed spheroid) by exposure to an interface of water and slightly polar but hydrophobic solvent such as chloroform-water at 24 degrees C. We report here that exposure of M13 filaments to a chloroform-water interface at 2 degrees C trapped the phage particles in forms morphologically intermediate to filaments and spheroids. These structures were rods 250 nm long and 15 nm wide, and each had a closed, slightly pointed end, an open flaired end, and a hollow central channel. The final contraction of these intermediates (termed I-forms) into spheroids was dependent upon both temperature and the presence of the solvent-water interface but was apparently independent of both the minor phage coat proteins and the virion DNA. Although stable in an aqueous environment, I-forms, in contrast to filaments, were readily disrupted by detergents, suggesting that the phage structure had been altered to a form more easily solubilized by membrane lipids. These solvent-induced changes might be related to the initial steps of phage penetration in vivo.
Phosphorylation of acyclovir [9-(2-hydroxyethoxymethyl)guanine] in Epstein-Barr virus-infected lymphoblastoid cell lines.
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: 1981

description: The extent of phosphorylation of 9-(2-hydroxyethoxymethyl)guanine (acyclovir [ACV]) in fresh peripheral leukocytes, in Epstein-Barr virus (EBV)-infected lymphoblastoid cell lines, and in herpes simplex virus type 1-infected lymphoblastoid (P3HR-1) and monkey kidney (Vero) cells was determined by high-pressure liquid chromatography, Mono-, di-, and triphosphorylated derivatives of [8-14C]ACV were detected at low levels at various times after superinfection of Raji cells with EBV. The extent of phosphorylation appeared to be related to the concentration of ACV in the medium. Small amounts of ACV mono-, di-, and triphosphates were formed in fresh peripheral leukocyte preparations from EBV- seropositive and -seronegative donors. Comparable ACV monophosphate levels were detected in EBV-negative BJAB and the EBV-positive BJAB/GC cell lines; however, no di- or triphosphate derivatives were detected. Comparable ACV-monophosphate levels were detected in both P3HR-1 and HSV-infected P3HR-1 cell lines; however, larger amounts of ACV di- and triphosphorylated derivatives were detected in the HSV-infected P3HR-1 cells. ACV was converted to the triphosphate to a greater extent in HSV-infected Vero cells than in mock-infected Vero cells or in HSV-infected P3HR-1 cells. ACV or its phosphorylated derivatives were converted to guanine nucleotides to a greater extent in lymphoblastoid cells than in fibroblasts (Vero). In conclusion, neither the productive replication of EBV nor the presence of latent viral DNA is required for ACV monophosphate formation in B lymphoblastoid cells. ACV triphosphate, however, was detected only in cells infected productively with EBV.
Fuel Consumption Prediction for a Passenger Ferry using Machine Learning and In-service Data: A Comparative Study
Creators: name: Agand, Pedram
name: Kennedy, Allison
name: Harris, Trevor
name: Bae, Chanwoo
name: Chen, Mo
name: Park, Edward J
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: As the importance of eco-friendly transportation increases, providing an efficient approach for marine vessel operation is essential. Methods for status monitoring with consideration to the weather condition and forecasting with the use of in-service data from ships requires accurate and complete models for predicting the energy efficiency of a ship. The models need to effectively process all the operational data in real-time. This paper presents models that can predict fuel consumption using in-service data collected from a passenger ship. Statistical and domain-knowledge methods were used to select the proper input variables for the models. These methods prevent over-fitting, missing data, and multicollinearity while providing practical applicability. Prediction models that were investigated include multiple linear regression (MLR), decision tree approach (DT), an artificial neural network (ANN), and ensemble methods. The best predictive performance was from a model developed using the XGboost technique which is a boosting ensemble approach. \rvv{Our code is available on GitHub at \url{https://github.com/pagand/model_optimze_vessel/tree/OE} for future research.
description: 20 pages, 11 figures, 7 tables
Structure of replicating herpes simplex virus DNA.
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: 1981

description: We have investigated the molecular anatomy of the herpes simplex virus replicative intermediates by cleavage with the restriction endonuclease BglII. We find that in populations of multiply infected cells, pulse-labeled replicating herpes simplex virus DNA contains at least two and probably all four sequence isomers. Also, it contains no detectable termini. In pulse-chase experiments, we show that endless replicative intermediates are the precursors to virion DNA and that maturation is a relatively slow process. The results are discussed in terms of their significance to possible models of herpes simplex virus DNA replication.
Spectroscopic detections of CIII]1909 at z~6-7: A new probe of early star forming galaxies and cosmic reionisation
Creators: name: Stark, Daniel P.
name: Richard, Johan
name: Charlot, Stephane
name: Clement, Benjamin
name: Ellis, Richard
name: Siana, Brian
name: Robertson, Brant
name: Schenker, Matthew
name: Gutkin, Julia
name: Wofford, Aida
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Deep spectroscopic observations of z~6.5 galaxies have revealed a marked decline with increasing redshift in the detectability of Lyman-alpha emission. While this may offer valuable insight into the end of the reionisation process, it presents a fundamental challenge to the detailed spectroscopic study of the many hundreds of photometrically-selected distant sources now being found via deep HST imaging, and particularly those bright sources viewed through foreground lensing clusters. In this paper we demonstrate the validity of a new way forward via the convincing detection of an alternative diagnostic line, CIII]1909, seen in spectroscopic exposures of two star forming galaxies at z=6.029 and 7.213. The former detection is based on a 3.5 hour X-shooter spectrum of a bright (J=25.2) gravitationally-lensed galaxy behind the cluster Abell 383. The latter detection is based on a 4.2 hour MOSFIRE spectra of one of the most distant spectroscopically confirmed galaxies, GN-108036, with J=25.2. Both targets were chosen for their continuum brightness and previously-known redshift (based on Lyman-alpha), ensuring that any CIII] emission would be located in a favorable portion of the near-infrared sky spectrum. We compare our CIII] and Lyman-alpha equivalent widths in the context of those found at z~2 from earlier work and discuss the motivation for using lines other than Lyman-alpha to study galaxies in the reionisation era.
description: 10 pages, 6 figures, submitted to MNRAS
Approximating Gibbs states of local Hamiltonians efficiently with PEPS
Creators: name: Molnár, András
name: Schuch, Norbert
name: Verstraete, Frank
name: Cirac, J. Ignacio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We analyze the error of approximating Gibbs states of local quantum spin Hamiltonians on lattices with Projected Entangled Pair States (PEPS) as a function of the bond dimension ($D$), temperature ($β^{-1}$), and system size ($N$). First, we introduce a compression method in which the bond dimension scales as $D=e^{O(\log^2(N/ε))}$ if $β
description: 12 pages, 1 figure
Slow dynamics of salol: a pressure and temperature dependent light scattering study
Creators: name: Comez, L.
name: Corezzi, S.
name: Fioretto, D.
name: Kriegs, H.
name: Best, A.
name: Steffen, W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the slow dynamics of salol by varying both temperature and pressure using photon correlation spectroscopy and pressure-volume-temperature measurements, and compare the behavior of the structural relaxation time with equations derived within the Adam-Gibbs entropy theory and the Cohen-Grest free volume theory. We find that pressure dependent data are crucial to assess the validity of these model equations. Our analysis supports the entropy-based equation, and estimates the configurational entropy of salol at ambient pressure ? 70% of the excess entropy. Finally, we investigate the evolution of the shape of the structural relaxation process, and find that a time-temperature-pressure superposition principle holds over the range investigated.
Upsilon Production at the STAR Experiment with a Focus on New U+U Results
Creators: name: Vertesi, Robert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We report recent Upsilon measurements in p+p, d+Au and Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV, and detail the analysis in U+U collisions at $\sqrt{s_{NN}}$=193 GeV. Results on Upsilon production versus rapidity are consistent with pQCD predictions in p+p collisions. However, Upsilon production in mid-rapidity (|y|<0.5) d+Au collisions is suppressed with respect to p+p collisions beyond model predictions that take into account modification of parton distribution functions and initial parton energy loss inside nuclei. The nuclear modification factor R_AA shows a significant suppression in central Au+Au and U+U collisions, consistent with model calculations including color screening effects in a deconfined medium.
description: To appear in the proceedings of Particles and Nuclei International Conference 2014 (PANIC14). 4 pages, 6 figures
Black hole Meissner effect and entanglement
Creators: name: Penna, Robert F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Extremal black holes tend to expel magnetic and electric fields. Fields are unable to reach the horizon because the length of the black hole throat blows up in the extremal limit. The length of the throat is related to the amount of entanglement between modes on either side of the horizon. So it is natural to try to relate the black hole Meissner effect to entanglement. We derive the black hole Meissner effect directly from the low temperature limit of two-point functions in the Hartle-Hawking vacuum. Then we discuss several new examples of the black hole Meissner effect, its applications to astrophysics, and its relationship to gauge invariance.
Analysis of proteins synthesized in respiratory syncytial virus-infected cells.
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: 1982

description: The spectrum of respiratory syncytial virus-encoded proteins was examined in infected cell extracts by standard polyacrylamide gel electrophoresis and by two-dimensional gel analysis. Polyacrylamide gel electrophoresis analysis of a variety of respiratory syncytial virus-infected, actinomycin D-treated cell lines revealed the presence of as many as nine virus-encoded proteins. Seven of these nine proteins were immunoprecipitated by anti-respiratory syncytial serum. Only one major band of [3H]glucosamine was detected in infected cell extracts (Vp86), whereas the reported major virion glycoprotein (Vp48-53) was difficult to detect in infected cells when carbohydrate labels were employed. Two-dimensional gel analysis easily identified seven viral proteins, and one other was tentatively identified. The reported major virion glycoprotein again was not consistently detected. The results of this study confirm the existence of a virus-coded glycoprotein (Vp86) in infected cell extracts. The existence of this glycoprotein in the purified virion has been in dispute, but the apparent low methionine content of this protein may be the reason for this controversy.
Carrier doping of Bi$_2$Se$_3$ surface by chemical adsorption -- a DFT study
Creators: name: Fan, Cheng
name: Sakamoto, Kazuyuki
name: Krüger, Peter
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Bi$_2$Se$_3$ is one of the most promising topological insulators, but it suffers from intrinsic n-doping due to Se-vacancies, which shifts the Fermi level into the bulk conduction band, leading to topologically trivial carriers. Recently it was shown that this Fermi-level shift can be compensated by a locally controlled surface p-doping process, through water adsorption and XUV irradiation. Here, the microscopic mechanism of this surface doping is studied by means of density functional theory (DFT) focusing on the adsorption of H$_2$O, OH, O, C and CH on Bi$_2$Se$_3$. We find that water adsorption has a negligible doping effect while hydroxyl groups lead to n-doping. Carbon adsorption on Se vacancies gives rise to p-doping but it also strongly modifies the electronic band structure around the Dirac point. Only if the Se vacancies are filled with atomic oxygen, the experimentally observed p-doping without change of the topological surface bands is reproduced. Based on the DFT results, we propose a reaction path where photon absorption gives rise to water splitting and the produced O atoms fill the Se vacancies. Adsorbed OH groups appear as intermediate states and carbon impurities may have a catalytic effect in agreement with experimental observations.
Energy levels, radiative rates and electron impact excitation rates for transitions in Be-like Cl XIV, K XVI and Ge XXIX
Creators: name: Aggarwal, K. M.
name: Keenan, F. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Results for energy levels, radiative rates and electron impact excitation (effective) collision strengths for transitions in Be-like Cl XIV, K XVI and Ge XXIX are reported. For the calculations of energy levels and radiative rates the General-purpose Relativistic Atomic Structure Package ({\sc grasp}) is adopted, while for determining the collision strengths and subsequently the excitation rates, the Dirac Atomic R-matrix Code ({\sc darc}) is used. Oscillator strengths, radiative rates and line strengths are listed for all E1, E2, M1 and M2 transitions among the lowest 98 levels of the $n \le$ 4 configurations. Furthermore, lifetimes are provided for all levels and comparisons made with available theoretical and experimental results. Resonances in the collision strengths are resolved in a fine energy mesh and averaged over a Maxwellian velocity distribution to obtain the effective collision strengths. Results obtained are listed over a wide temperature range up to 10$^{7.8}$ K, depending on the ion.
description: Text: 10p, Figs. 3, Tables 17 Will be published in Physica Scripta 89 (2014) 000000
Emergent properties hidden in plane view: Strong electronic correlations at oxide interfaces
Creators: name: Chakhalian, Jak
name: Freeland, John W.
name: Millis, Andrew J.
name: Panagopoulos, Christos
name: Rondinelli, James M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Finding new collective electronic states in materials is one of the fundamental goals of condensed matter physics. Atomic-scale superlattices formed from transition metal oxides are a particularly appealing hunting ground for new physics. In bulk form, transition metal oxides exhibit a remarkable range of magnetic, superconducting, and multiferroic phases that are of great scientific interest and are potentially capable of providing innovative energy, security, electronics and medical technology platforms. In superlattices new states may emerge at the interfaces where dissimilar materials meet. Here we illustrate the essential features that make transition metal oxide-based heterostructures an appealing discovery platform for emergent properties with a few selected examples, showing how charge redistributes, magnetism and orbital polarization arises and ferroelectric order emerges from heterostructures comprised of oxide components with nominally contradictory behavior with the aim providing insight into the creation and control of novel behavior at oxide interfaces by suitable mechanical, electrical or optical boundary conditions and excitations.
description: 16 pages, 5 figures
Residential segretation. The role of inequality and housing subsidies
Creators: name: Harting, Philipp
name: Radi, Davide
Publisher: name: Bielefeld University, Department of Business Administration and Economics
Year: 2018
Subjects: subject: 330
subject: Residential segregation
subject: Ethnic income disparities
subject: Housing subsidies
subject: Evolutionary dynamics

description: Residential segregation is a key public policy issue that is driven by economic fac- tors on the one side, and individual attitudes towards ethnic diversity on the other side. We assume a modeling framework that consists of a population of two ethnic groups, a rental market for each neighborhood, and household's utility which depends on consumption and housing. Accounting for income disparities and heterogeneous preferences for living in ethnically diverse neighborhoods, we examine the residential segregation patterns that occur when households make their neighborhood choice by taking economic and diversity related aspects into account. The investigation reveals that ethnic income disparities and heterogeneous preferences are antagonistic forces such that a certain level of income stratification is the price for residential integra- tion. In light of these findings, we discuss to which extent and under which conditions housing subsidy policies can favor residential integration.
Differential effect of nucleoside analog triphosphates on ribonucleotide reductases from uninfected and herpes simplex virus-infected HeLa cells.
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: 1982

description: Effects of the triphosphates of eight pyrimidine nucleoside analogs (5-substituted, 2'-fluoroara-, and acyclonucleosides) and acycloguanosine were examined on the ribonucleotide reductases prepared from uninfected and herpes simplex virus (types 1 and 2)-infected HeLa cells. Of the analogs tested, E-5-propenyl- and E-5-(2-bromovinyl)-dUTP were more potent inhibitors than dTTP of the enzymes from virus-infected cells, whereas only the former compound showed this effect on the uninfected HeLa enzyme.
title: Graceful labellings of new families of windmill and snake graphs
Creators: name: Alkasasbeh, Ahmad H.
Publisher: name: Memorial University of Newfoundland
Year: 2021

description: A function ƒ is a graceful labelling of a graph G = (V,E) with m edges if ƒ is an injection ƒ : V (G) → {0, 1, 2, . . . ,m} such that each edge uv ∈ E is assigned the label |ƒ(u) − ƒ(v)| ∈ {1, 2, . . . ,m}, and no two edge labels are the same. If a graph G has a graceful labelling, we say that G itself is graceful. A variant is a near graceful labelling, which is similar, except the co-domain of f is {0, 1, 2, . . . ,m + 1} and the set of edge labels are either {1, 2, . . . ,m − 1,m} or {1, 2, . . . ,m − 1,m + 1}. In this thesis, we prove any Dutch windmill with three pendant triangles is (near) graceful, which settles Rosa’s conjecture for a new family of triangular cacti. Further, we introduce graceful and near graceful labellings of several families of windmills. In particular, we use Skolem-type sequences to prove (near) graceful labellings exist for windmills with C₃ and C₄ vanes, and infinite families of 3,5-windmills and 3,6-windmills. Furthermore, we offer a new solution showing that the graph obtained from the union of t 5-cycles with one vertex in common (Ct₅ ) is graceful if and only if t ≡ 0,3 (mod 4) and near graceful when t ≡ 1, 2 (mod 4). Also, we present a new sufficiency condition to obtain a graceful labelling for every kC₄ₙ snake and use this condition to label every such snake for n = 1, 2, . . . , 6. Then, we extend this result to cyclic snakes where the cycles lengths vary. Also, we obtain new results on the (near) graceful labelling of cyclic snakes based on cycles of lengths n = 6, 10, 14, completely solving the case n = 6.
Filamentous structures associated with Epstein-Barr virus-infected cells.
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: 1982

description: After the onset of Epstein-Barr virus DNA and protein synthesis 10 h after superinfection of Raji cells (a cell line containing Epstein-Barr virus DNA but not producing virus), filamentous structures 25 nm in diameter and 0.2 to 1.4 micrometers in length could be detected in the cell cytoplasm by electron microscopy. These structures banded in metrizamide gradients with viral DNA and proteins, but at a density different from that of virions or nucleocapsids. These filaments, enriched in a 155,000-dalton protein similar in size to a major nucleocapsid protein of Epstein-Barr virus, may represent intermediates in viral nucleocapsid assembly.
Identification and characterization of a DNase induced by Epstein-Barr virus.
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: 1982

description: The diterpene ester promoter of mouse skin tumors, 12-O-tetradecanoyl-phorbol-13-acetate, induced a DNase activity in the Epstein-Barr virus-producer cell line P3HR-1. The elution patterns of the enzyme from DEAE-cellulose, phosphocellulose, and DNA-cellulose columns were different from virus-associated DNA polymerase activity. The partially purified activity could be neutralized to the extent of 90% by sera of patients with nasopharyngeal carcinoma. Purified immunoglobulin G from sera of nasopharyngeal carcinoma patients inhibited this enzyme and that obtained from superinfected Raji cells to the same extent. The partially purified enzyme preferred native DNA as a substrate over denatured DNA and 3'-terminally labeled activated calf thymus DNA. The activity was inhibited by high ionic strength. Phosphonoformic acid did not have any effect on this enzyme activity.
Impact of polarisation on the intrinsic CMB bispectrum
Creators: name: Pettinari, Guido W.
name: Fidler, Christian
name: Crittenden, Robert
name: Koyama, Kazuya
name: Lewis, Antony
name: Wands, David
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the bispectrum induced in the cosmic microwave background (CMB) temperature and polarisation by the evolution of the primordial density perturbations using the second-order Boltzmann code SONG. We show that adding polarisation increases the signal-to-noise ratio by a factor four with respect to temperature alone and we estimate the observability of this intrinsic bispectrum and the bias it induces on measurements of primordial non-Gaussianity. When including all physical effects except the late-time non-linear evolution, we find for the intrinsic bispectrum a signal-to-noise of $S/N=3.8,\,2.9,\,1.6$ and $0.5$ for, respectively, an ideal experiment with an angular resolution of $\ell_\text{max}=3000$, the proposed CMB surveys PRISM and COrE, and Planck's polarised data; the bulk of this signal comes from the $E$-polarisation and from squeezed configurations. We discuss how CMB lensing is expected to reduce these estimates as it suppresses the bispectrum for squeezed configurations and contributes to the noise in the estimator. We find that the presence of the intrinsic bispectrum will bias a measurement of primordial non-Gaussianity of local type by $f_{NL}^\text{bias}=0.66$ for an ideal experiment with $\ell_\text{max}=3000$. Finally, we verify the robustness of our results by reproducing the analytical approximation for the squeezed-limit bispectrum in the general polarised case.
description: 5 pages, 3 figures
On the concept of Bell's local causality in local classical and quantum theory
Creators: name: Hofer-Szabó, G.
name: Vecsernyés, P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The aim of this paper is to give a sharp definition of Bell's notion of local causality. To this end, first we unfold a framework, called local physical theory, integrating probabilistic and spatiotemporal concepts. Formulating local causality within this framework and classifying local physical theories by whether they obey local primitive causality --- a property rendering the dynamics of the theory causal, we then investigate what is needed for a local physical theory, with or without local primitive causality, to be locally causal. Finally, comparing Bell's local causality with the Common Cause Principles and relating both to the Bell inequalities we find a nice parallelism: Bell inequalities cannot be derived neither from local causality nor from a common cause unless the local physical theory is classical or the common cause is commuting, respectively.
description: 24 pages, 5 figures
Synthesis of Vesicular Stomatitis Virus Negative-Strand RNA In Vitro: Dependence on Viral Protein Synthesis
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: 1982

description: An in vitro system is described which supports the synthesis of vesicular stomatitis virus (VSV) negative-strand RNA. The major components of this system are (i) an mRNA-dependent rabbit reticulocyte lysate to carry out cell-free protein synthesis, (ii) the five VSV mRNAs to program VSV-specific protein synthesis, and (iii) nucleocapsids containing positive- and negative-strand genome-length RNA. The protein products synthesized in the system in response to addition of saturating amounts of the five VSV mRNA's included polypeptides which comigrated in acrylamide gels with the five VSV proteins. Approximately 200 pmol of protein per ml was synthesized during a 90-min reaction. The RNA products synthesized in the system included all five of the VSV mRNA's and, in addition, negative-strand, genome-sense RNA. All of the negative-strand RNA, which represented 2 to 5% of the total RNA product synthesized in vitro, banded in CsCl at the position of nucleocapsids. All of the mature mRNA's made in the system pelleted in CsCl. This technique allowed a clear separation of negative-strand product from the mRNA products and facilitated further analysis of the negative-strand product. The amount of negative-strand product produced in the system was shown to be a function of the amount of concurrent protein synthesis in the system. An increase in the level of protein synthesis led to an increase in the amount of negative-strand RNA synthesized, whereas inhibition of protein synthesis by cycloheximide resulted in a 70% inhibition of negative-strand synthesis. In contrast to the negative-strand RNA product, the amount of transcriptive product was decreased by 50% in the presence of maximum levels of viral protein synthesis. This inhibition was reversed by adding cycloheximide. Characterization of the negative-strand product by Northern blot analysis demonstrated that negative-strand product was being synthesized which hybridized to all five of the VSV mRNA's and, hence, that product representing all of the VSV cistrons was being made. This in vitro system offers an opportunity to study factors involved in the promotion of VSV genome replication as well as those responsible for the regulation of transcription.
SCMA Codebook Design
Creators: name: Taherzadeh, Mahmoud
name: Nikopour, Hosein
name: Bayesteh, Alireza
name: Baligh, Hadi
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: Multicarrier CDMA is a multiple access scheme in which modulated QAM symbols are spread over OFDMA tones by using a generally complex spreading sequence. Effectively, a QAM symbol is repeated over multiple tones. Low density signature (LDS) is a version of CDMA with low density spreading sequences allowing us to take advantage of a near optimal message passing algorithm (MPA) receiver with practically feasible complexity. Sparse code multiple access (SCMA) is a multi-dimensional codebook-based non-orthogonal spreading technique. In SCMA, the procedure of bit to QAM symbol mapping and spreading are combined together and incoming bits are directly mapped to multi-dimensional codewords of SCMA codebook sets. Each layer has its dedicated codebook. Shaping gain of a multi-dimensional constellation is one of the main sources of the performance improvement in comparison to the simple repetition of QAM symbols in LDS. Meanwhile, like LDS, SCMA enjoys the low complexity reception techniques due to the sparsity of SCMA codewords. In this paper a systematic approach is proposed to design SCMA codebooks mainly based on the design principles of lattice constellations. Simulation results are presented to show the performance gain of SCMA compared to LDS and OFDMA.
description: Accepted for IEEE VTC-fall 2014
The genome of respiratory syncytial virus is a negative-stranded RNA that codes for at least seven mRNA species.
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: 1982

description: The RNA from purified respiratory syncytial (RS) virions and the RNAs from RS virus-infected cells were isolated and characterized. The RNA from RS virions was found to be a unique species of single-stranded RNA of approximately 5 x 10(6) daltons. Specific annealing experiments demonstrated that at least 93% of the virion RNA was of negative (nonmessage) polarity. Eight major and three minor species of virus-specific RNA were detected in the cytoplasm of RS virus-infected HEp-2 cells. The largest intracellular RNA species comigrated with RNA from purified virions, was not polyadenylated, and was synthesized only in the presence of concomitant protein synthesis. The seven major smaller species of RNA were synthesized in the presence of an inhibitor of protein synthesis. These RNAs were all polyadenylated and were shown to be RS virus specific by their ability to anneal specifically to purified virion RNA. The sum of the sizes of the major RS virus-specific polyadenylated RNAs was sufficient to account for the coding capacity of the RS virus genome (within the limits of reliability of the methods we have used to determine size).