cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
$L^2$-index of the Dirac operator of generalized Euclidean Taub-NUT metrics
Creators: name: Moroianu, Sergiu
name: Visinescu, Mihai
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the axial anomaly for the Taub-NUT metric on $R^4$. We show that the axial anomaly for the generalized Taub-NUT metrics introduced by Iwai and Katayama is finite, although the Dirac operator is not Fredholm. We show that the essential spectrum of the Dirac operator is the whole real line.
description: 8 pages, LaTeX, no figures, submitted to the Proceedings of the Workshop QFEXT'05, Barcelona, Spain
Hole in the 2D Ising Antiferromagnet: Origin of the Incoherent Spectrum
Creators: name: Wrzosek, Piotr
name: Wohlfeld, Krzysztof
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We develop a "self-avoiding walks" approximation and use it to calculate the spectral function of a single hole introduced into the 2D square lattice Ising antiferromagnet. The obtained local spectral function qualitatively agrees with the exact diagonalisation result and is largely incoherent. Such a result stays in contrast with the spectrum obtained on a Bethe lattice, which consists of the well-separated quasiparticle-like peaks and stems from the motion of a hole in an effective linear potential. We determine that this onset of the incoherent spectrum on a square lattice (i) is not triggered by the so-called Trugman loops but (ii) originates in the warping of the linear potential by the interactions between magnons created along the tangential paths of the moving hole.
description: 12 pages, 10 figures
Tracing Dark Matter Halos with Satellite Kinematics and the Central Stellar Velocity Dispersion of Galaxies
Creators: name: Seo, Gangil
name: Sohn, Jubee
name: Lee, Myung Gyoon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: It has been suggested that the central stellar velocity dispersion of galaxies can trace dark matter halo mass directly. We test this hypothesis using a complete spectroscopic sample of isolated galaxies surrounded by faint satellite galaxies from the Sloan Digital Sky Survey Data Release 12. We apply a friends-of-friends algorithm with projected linking length $ΔD < 100$ kpc and radial velocity linking length $ΔV < 1000$ km s$^{-1}$ to construct our sample. Our sample includes 2807 isolated galaxies with 3417 satellite galaxies at $0.01 < z < 0.14$. We divide the sample into two groups based on the primary galaxy color: red and blue primary galaxies separated at $(g-r)_{0} = 0.85$. The central stellar velocity dispersions of the primary galaxies are proportional to the luminosities and stellar masses of the same galaxies. Stacking the sample based on the central velocity dispersion of the primary galaxies, we derive the velocity dispersions of their satellite galaxies, which trace the dark matter halo mass of the primary galaxies. The system velocity dispersion of the satellite galaxies shows a remarkably tight correlation with the central velocity dispersion of the primary galaxies for both red and blue samples. In particular, the slope of the relation is identical to 1 for red primary systems. This tight relation suggests that the central stellar velocity dispersion of galaxies is indeed an efficient and robust tracer for dark matter halo mass. We provide empirical relations between the central stellar velocity dispersion and the dark matter halo mass.
description: 16 pages, 15 figures, Accepted for publication in Astrophysical Journal
The Progenitor Stars of Gamma-Ray Bursts
Creators: name: Woosley, Stan
name: Heger, Alexander
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Those massive stars that, during their deaths, give rise to gamma-ray bursts (GRBs) must be endowed with an unusually large amount of angular momentum in their inner regions, one to two orders of magnitude greater than the ones that make common pulsars. Yet the inclusion of mass loss and angular momentum transport by magnetic torques during the precollapse evolution is known to sap the core of the necessary rotation. Here we explore the evolution of very rapidly rotating, massive stars, including stripped down helium cores that might result from mergers or mass transfer in a binary, and single stars that rotate unusually rapidly on the main sequence. For the highest possible rotation rates (about 400 km/s), a novel sort of evolution is encountered in which single stars mix completely on the main sequence, never becoming red giants. Such stars, essentially massive "blue stragglers", produce helium-oxygen cores that rotate unusually rapidly. Such stars might comprise roughly 1% of all stars above 10 solar masses and can, under certain circumstances retain enough angular momentum to make GRBs. Because this possibility is very sensitive to mass loss, GRBs will be much more probable in regions of low metallicity.
description: 20 pages, 2 tables, 2 figures, submitted to ApJ
Impact of COVID-19 on IoT Adoption in Healthcare, Smart Homes, Smart Buildings, Smart Cities, Transportation and Industrial IoT
Creators: name: Umair, Muhammad
name: Cheema, Muhammad Aamir
name: Cheema, Omer
name: Li, Huan
name: Lu, Hua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: COVID-19 has disrupted normal life and has enforced a substantial change in the policies, priorities and activities of individuals, organisations and governments. These changes are proving to be a catalyst for technology and innovation. In this paper, we discuss the pandemic's potential impact on the adoption of the Internet of Things (IoT) in various broad sectors namely healthcare, smart homes, smart buildings, smart cities, transportation and industrial IoT. Our perspective and forecast of this impact on IoT adoption is based on a thorough research literature review, a careful examination of reports from leading consulting firms and interactions with several industry experts. For each of these sectors, we also provide the details of notable IoT initiatives taken in wake of COVID-19. We also highlight the challenges that need to be addressed and important research directions that will facilitate accelerated IoT adoption.
description: This is the version accepted at Sensors 2021
Domestication does not alter the effect of herbivory or competition on invasion risk
Creators: name: Petri, Tabitha
name: Rehill, Brian
name: Deah Lieurance
name: S. Luke Flory
Publisher: name: F1000 Research Limited
Year: 2019

description: Exploring how trait changes to plant defense compounds of Lespedeza cuneata through domestication potentially influence it's invasion risk.
Hinz, Rudolf, Kürschner-Pelkmann, Frank: Christen im Widerstand
Creators: name: Raiser, Konrad
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 36 Nr. 4 (1987): Ökumenische Rundschau, Band 36, Heft 4
Ising model susceptibility: Fuchsian differential equation for $χ^{(4)}$ and its factorization properties
Creators: name: Zenine, N.
name: Boukraa, S.
name: Hassani, S.
name: Maillard, J. -M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We give the Fuchsian linear differential equation satisfied by $χ^{(4)}$, the ``four-particle'' contribution to the susceptibility of the isotropic square lattice Ising model. This Fuchsian differential equation is deduced from a series expansion method introduced in two previous papers and is applied with some symmetries and tricks specific to $χ^{(4)}$. The corresponding order ten linear differential operator exhibits a large set of factorization properties. Among these factorizations one is highly remarkable: it corresponds to the fact that the two-particle contribution $χ^{(2)}$ is actually a solution of this order ten linear differential operator. This result, together with a similar one for the order seven differential operator corresponding to the three-particle contribution, $χ^{(3)}$, leads us to a conjecture on the structure of all the $ n$-particle contributions $ χ^{(n)}$.
description: 27 pages no figures
Discovery of a Supercluster in the eROSITA Final Equatorial Depth Survey: X-ray Properties, Radio Halo, and Double Relics
Creators: name: Ghirardini, V.
name: Bulbul, E.
name: Hoang, D. N.
name: Klein, M.
name: Okabe, N.
name: Biffi, V.
name: Bruggen, M.
name: Ramos-Ceja, M. E.
name: Comparat, J.
name: Oguri, M.
name: Shimwell, T. W.
name: Basu, K.
name: Bonafede, A.
name: Botteon, A.
name: Brunetti, G.
name: Cassano, R.
name: de Gasperin, F.
name: Dennerl, K.
name: Gatuzz, E.
name: Gastaldello, F.
name: Intema, H.
name: Merloni, A.
name: Nandra, K.
name: Pacaud, F.
name: Predehl, P.
name: Reiprich, T. H.
name: Robrade, J.
name: Röttgering, H.
name: van Weeren, J. Sanders R. J.
name: Williams, W. L.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine the X-ray, optical, and radio properties for the members clusters of a new supercluster discovered during the SRG/eROSITA Performance Verification phase. In the 140 deg2 eROSITA Final Equatorial Depth Survey (eFEDS) field we detect a previously unknown supercluster consisting of a chain of eight galaxy clusters at z=0.36. The redshifts of these members are determined through HSC photometric measurements. We examine the X-ray morphological and dynamical properties, gas and total mass out to R500 of the members and compare them with the general population of clusters detected in the eFEDS field. We further investigate the gas in the bridge region between the cluster members for a potential WHIM detection. Radio follow-up observations with LOFAR and uGMRT are used to search for diffuse emission and constrain the dynamic state of the system. We do not find significant differences in the morphological parameters and properties of the intra-cluster medium of the clusters embedded in this large-scale filament compared to eFEDS clusters. We also provide upper limits on the electron number density and mass of the warm-hot intergalactic medium as provided by the eROSITA data. These limits are consistent with previously reported values for the detections in the vicinity of clusters of galaxies. In LOFAR and uGMRT follow-up observations of the northern part of this supercluster we find two new radio relics that are the result of major merger activity in the system. These early results show the potential of eROSITA to probe large-scale structures such as superclusters and the properties of their members. Our forecasts show that we will be able to detect 450 superclusters with 3000 member clusters located in the eROSITA_DE region at the final eROSITA all-sky survey depth, enabling statistical studies of the properties of superclusters and their constituents embedded in the cosmic web.
description: 19 pages, 13 figures, accepted for publication by A&A
An analogue of the Magnus problem for associative algebras
Creators: name: Dotsenko, V.
name: Iyudu, N.
name: Korytin, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Rings and Algebras (math.RA)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 16S15

description: We prove an analogue of the Magnus theorem for associative algebras without unity over arbitrary fields. Namely, if an algebra is given by n+k generators and k relations and has an n-element system of generators, then this algebra is a free algebra of rank n.
Evaluation of Construction Zone Pavement Marking Materials
Creators: name: Agent, Kenneth R.
name: Pigman, Jerry G.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1985
Subjects: subject: Transportation Engineering

description: The objectives of this report were to evaluate all available foil-back and removable tapes as well as construction zone raised pavement markers and to recommend materials that should be included on approved lists for use by the Kentucky Department of Highways. The tapes were placed on transverse test sections and as lane lines and the reflectivity, durability, and appearance were observed. The markers were observed at test sections as well as at construction sites.  Lists of tapes to be included on the approved lists for foil-back and removable tapes were recommended. Tapes manufactured by 3M and Flex-0-Lite were included on the list of acceptable foil-back tapes. The only recommended removable tape was the 3M removable tape. It was recommended that the Stimsonite 66 construction zone marker could be used if the adhesive is completely removed along with the marker.
A Survey of the States on Problems Related to Bridge Approaches
Creators: name: Allen, David L.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1985
Subjects: subject: Transportation Engineering

description: A questionnaire was sent to the states concerning problems with bridge approaches. Seven questions were included in the survey, including questions on the use of integral end bents and spread footers. This report summarizes the responses. Appendix A contains the detailed responses received, and Appendix B contains specifications and standard drawings used by some of the states.
A Potential Supernova Remnant/X-ray Binary Association in M31
Creators: name: Williams, Benjamin F.
name: Barnard, Robin
name: Garcia, Michael R.
name: Kolb, U.
name: Osborne, J. P.
name: Kong, Albert K. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The well-studied X-ray/Optical/Radio supernova remnant DDB 1-15 (CXOM31 J004327.8+411829; r3-63) in M31 has been investigated with archival XMM-Newton and Chandra observations. The timing data from XMM-Newton reveals a power density spectrum (PDS) characteristic of accreting compact objects in X-ray binaries (XRBs). The PDS shows features typical of Roche lobe overflow accretion, hinting that the XRB is low-mass. The Chandra observations resolve the SNR into a shell and show a variable count rate at the 94% confidence level in the northwest quadrant. Together, these XMM-Newton and Chandra data suggest that there is an XRB in the SNR r3-63 and that the XRB is located in the northwestern portion of the SNR. The currently-available X-ray and optical data show no evidence that the XRB is high-mass. If the XRB is low-mass, r3-63 would be the first SNR found to contain a low-mass X-ray binary.
description: 30 pages, 3 tables, 11 figures, accepted for publication in ApJ
title: A Computerized Analysis of Flexible Pavement Rutting Behavior
title: (PAVRUT)
titleType: Subtitle
Creators: name: Allen, David L.
name: Deen, Robert C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1985
Subjects: subject: Transportation Engineering

description: The behavior of asphalt-bound layers, unbound aggregate bases, and foundation soils (subgrades) may be affected by such variables as gradation, asphalt and (or) moisture contents, type of aggregate, density, method of compaction, temperature, magnitude and frequency of loading, duration of each load cycle, and other less significant variables. The complex interaction of all these variables yields a composite behavior for a particular pavement structure that could become manifest in some form of distress or even complete "failure."  Flexible pavements are susceptible to rutting. But it is not well known where and to what extent rutting takes place within a pavement structure. Rutting is a result of the lateral distribution (generally approximated by a normal distribution) or scatter of wheel passes across the wheelpaths. A large percentage of wheel passes occur within relatively narrow paths on the pavement surface. It is this distribution of traffic that causes accumulated deformations to occur, producing ruts. If these ruts are to be estimated or predicted for design purposes, the behavior of the materials must be known or "parameterized."  To determine where in the pavement structure and to what extent rutting occurs and to determine the factors that control rutting, a comprehensive laboratory testing program was performed. Various traffic and environmental parameters were controlled in the study; and from the data, mathematical models that described the rutting behavior of an asphaltic concrete, a dense-graded aggregate, and a subgrade soil were formulated. A traffic and a temperature model were also formulated to provide necessary input into the rutting models. These models have been collected and programmed into a computer program entitled PAVRUT. Using this program, an estimated rut depth can be calculated for any flexible pavement, assuming the volume and characteristics of the traffic stream and the properties of the paving materials are known.
Coordination chemistry : basics to bioactive molecules
Creators: name: Setyawati, Ika Agustin
Publisher: name: University of British Columbia
Year: 2009

description: The stability constants of bis(maltolato)oxovanadium(IV) (BMOV, or VO(ma)₂) and bis(kojato)oxovanadium(IV) (BKOV, or VO(ka)₂) at 25 °C (0.15 M NaCl) were measured. The former was found to be slightly more stable that the latter system. Since BMOV exhibits favourable chemical and insulin-enhancing properties in streptozotocin(STZ)-diabetic rats, the biodistributions of BMOV and its parent compound, vanadyl sulfate (VOSO₄ or VS), using ⁴⁸V as a tracer via oral or intraperitoneal administration in rats were studied. The data were analyzed using compartmental modeling. The results showed that tissue uptake of ⁴⁸V from an oral dose of ⁴⁸V-BMOV was approximately two to three times greater than that from an equivalent dose of ⁴⁸VS. This is consistent with previous studies in which a two to three times increased acute glucose-lowering potency was seen with BMOV compared with VS. The reactions of potentially hexadentate H₂bbpen (N,N'-bis(2-hydroxybenzyl)-N,N'- bis(2-methylpyridyl)ethylenediamine, H₂LI), H₂Clbbpen (N,N'-bis(5-chloro-2- hydroxybenzyl)-N,N'-bis(2-methylpyridyl)ethylenediamine, H₂L₂), and H₂Brbbpen (N,N'- bis(5-bromo-2-hydroxybenzyl)-N,N' -bis(2-methylpyridyl)ethylenediamine, H₂L₃) with Ln(III) ions in the presence of a base in methanol resulted in three types of complex: neutral mononuclear ([LnL(N0₃)]), monocationic dinuclear ([Ln₂L₂ (N0₃)]+) and monocationic trinuclear ([Ln₃L₂ (X)n(CH₃OH)]+), where X = bridging (CH₃COO⁻) and bidentate ligands (NO₃⁻, CH₃COO⁻, or CIO₄⁻) and n is 4. The formation of a complex depends on the base (hydroxide or acetate) and the size of the respective Ln(III) ion. All complexes were characterized by infrared spectroscopy, mass spectrometry, elemental analyses, and in some cases, by X-ray diffraction studies. The [LnL(N0₃)] or [Ln₂L₂ (N0₃)]+ complexes can be converted to [Ln₃L₂ (X)n(CH₃0H)]+ complexes by addition of one equivalent of a Ln(III) salt, and 2-3 equivalents of sodium acetate in methanol. The trinuclear complexes were found to be surprisingly stable, evinced by the presence of the intact monocationic high molecular weight parent peaks ([Ln₃L₂ (X)n]+) in the mass spectra of all trinuclear complexes, and from the ease of conversion from the mononuclear or dinuclear to the trinuclear species. X-ray crystal structures showed myriad modes of coordination geometry around Ln(III). The incompatibility of the ligand denticity with the coordination requirements of the Ln(III) ions was proven to be a useful tool in the construction of multinuclear Ln(III) metal ion arrays. The complexation of Fe₃+ and [RevO] ₃+ with bbpen²⁻ (LI²⁻) and Clbbpen²⁻ (L₂²⁻) resulted in the formation of monocationic complexes. The X-ray crystal structure of distorted octahedral [Fe(Ll)]N0₃»CH3₃0H showed the same coordination environment as in its previously studied Ga(III) and In(III) congeners. The solid state and solution structures of a monocationic oxorhenium(V) complex with H₂LI ([ReO(Ll)]+) were quite symmetric, with a pentagonal bipyramidal geometry.
Symmetries of quantum evolutions
Creators: name: Chiribella, Giulio
name: Aurell, Erik
name: Życzkowski, Karol
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A cornerstone of quantum mechanics is the characterisation of symmetries provided by Wigner's theorem. Wigner's theorem establishes that every symmetry of the quantum state space must be either a unitary transformation, or an antiunitary transformation. Here we extend Wigner's theorem from quantum states to quantum evolutions, including both the deterministic evolution associated to the dynamics of closed systems, and the stochastic evolutions associated to the outcomes of quantum measurements. We prove that every symmetry of the space of quantum evolutions can be decomposed into two state space symmetries that are either both unitary or both antiunitary. Building on this result, we show that it is impossible to extend the time reversal symmetry of unitary quantum dynamics to a symmetry of the full set of quantum evolutions. Our no-go theorem implies that any time symmetric formulation of quantum theory must either restrict the set of the allowed evolutions, or modify the operational interpretation of quantum states and processes. Here we propose a time symmetric formulation of quantum theory where the allowed quantum evolutions are restricted to a suitable set, which includes both unitary evolution and projective measurements, but excludes the deterministic preparation of pure states. The standard operational formulation of quantum theory can be retrieved from this time symmetric version by introducing an operation of conditioning on the outcomes of past experiments.
description: 11 + 11 pages, 1 figure, new results added, published version
Linear Diophantine equations in Piatetski-Shapiro sequences
Creators: name: Matsusaka, Toshiki
name: Saito, Kota
Publisher: name: arXiv
Year: 2020
Subjects: subject: Number Theory (math.NT)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: Primary:11K55, Secondary:11D04

description: A Piatetski-Shapiro sequence with exponent $α$ is a sequence of integer parts of $n^α$ $(n = 1,2,\ldots)$ with a non-integral $α> 0$. We let $\mathrm{PS}(α)$ denote the set of those terms. In this article, we study the set of $α$ so that the equation $ax + by = cz$ has infinitely many pairwise distinct solutions $(x,y,z) \in \mathrm{PS}(α)^3$, and give a lower bound for its Hausdorff dimension. As a corollary, we find uncountably many $α> 2$ such that $\mathrm{PS}(α)$ contains infinitely many arithmetic progressions of length $3$.
description: 21 pages
RAiSERed: radio continuum redshifts for lobed AGNs
Creators: name: Turner, Ross J.
name: Drouart, Guillaume
name: Seymour, Nick
name: Shabala, Stanislav S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Next-generation radio surveys are expected to detect tens of millions of active galactic nuclei (AGN) with a median redshift of z > 1. Beyond targeted surveys, the vast majority of these objects will not have spectroscopic redshifts, whilst photometric redshifts for high-redshift AGNs are of limited quality, and even then require optical and infrared photometry. We propose a new approach to measure the redshifts of lobed radio galaxies based exclusively on radio-frequency imaging and broadband radio photometry. Specifically, our algorithm uses the lobe flux density, angular size and width, and spectral shape to derive probability density functions for the most likely source redshift based on the Radio AGN in Semi-analytic Environments (RAiSE) dynamical model. The full physically based model explains 70% of the variation in the spectroscopic redshifts of a high-redshift (2 < z < 4) sample of radio AGNs, compared to at most 27% for any one of the observed attributes in isolation. We find that upper bounds on the angular size, as expected for unresolved sources, are sufficient to yield accurate redshift measurements at z > 2. The error in the model upon calibration using at least nine sources with known spectroscopic redshifts is <14% in redshift (as 1 + z) across all redshifts. We provide python code for the calculation and calibration of our radio continuum redshifts in an online library.
description: 14 pages, 9 figures, 4 tables; accepted in MNRAS. Code available at github.com/rossjturner/RAiSERed
«ХУДОЖЕСТВЕННАЯ ИНТЕРПРЕТАЦИЯ ЖИЗНИ И ТВОРЧЕСТВА АЛИШЕРА НАВОИ В ПОВЕСТИ «САД ЖИЗНИ» Л. Г. БАТЬ».
Creators: name: Ткаченко, Алла
Publisher: name: Zenodo
Year: 2024

description: Изучение творчества и жизнедеятельности Алишера Навои исчисляется несколькими веками, появившиеся в этот период многочисленные исследования и научные труды, посвященные гениальному поэту, характеризуются научным интересом к богатейшему и неисчерпаемому наследию  величайшего мыслителя Востока.
Towards Initial Indications for a Thiol-Based Redox Control of Arabidopsis 5-Aminolevulinic Acid Dehydratase
Creators: name: Wittmann, Daniel
name: Kløve, Sigri
name: Wang, Peng
name: Grimm, Bernhard
Publisher: name: Humboldt-Universität zu Berlin
Year: 2018
Subjects: subject: ALAD
subject: tetrapyrrole biosynthesis
subject: redox control
subject: thioredoxins
subject: posttranslational modification
subject: chlorophyll
subject: 540 Chemie und zugeordnete Wissenschaften
subject: 610 Medizin und Gesundheit

description: Thiol-based redox control is one of the important posttranslational mechanisms of the tetrapyrrole biosynthesis pathway. Many enzymes of the pathway have been shown to interact with thioredoxin (TRX) and Nicotinamide adenine dinucleotide phosphate (NADPH)-dependent thioredoxin reductase C (NTRC). We examined the redox-dependency of 5-aminolevulinic acid dehydratase (ALAD), which catalyzed the conjugation of two 5-aminolevulinic acid (ALA) molecules to porphobilinogen. ALAD interacted with TRX f, TRX m and NTRC in chloroplasts. Consequently, less ALAD protein accumulated in the trx f1, ntrc and trx f1/ntrc mutants compared to wild-type control resulting in decreased ALAD activity. In a polyacrylamide gel under non-reducing conditions, ALAD monomers turned out to be present in reduced and two oxidized forms. The reduced and oxidized forms of ALAD differed in their catalytic activity. The addition of TRX stimulated ALAD activity. From our results it was concluded that (i) deficiency of the reducing power mainly affected the in planta stability of ALAD; and (ii) the reduced form of ALAD displayed increased enzymatic activity.
On the sensitivity of condensed-matter P- and T-violation experiments
Creators: name: Budker, D.
name: Lamoreaux, S. K.
name: Sushkov, A. O.
name: Sushkov, O. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Experiments searching for parity- and time-reversal-invariance-violating effects that rely on measuring magnetization of a condensed-matter sample induced by application of an electric field are considered. A limit on statistical sensitivity arises due to random fluctuations of the spins in the sample. The scaling of this limit with the number of spins and their relaxation time is derived. Application to an experiment searching for nuclear Schiff moment in a ferroelectric is discussed.
description: 6 pages, no figures
A model of hyphal tip growth involving microtubule-based transport
Creators: name: Sugden, K. E. P.
name: Evans, M. R.
name: Poon, W. C. K.
name: Read, N. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Subcellular Processes (q-bio.SC)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: We propose a simple model for mass transport within a fungal hypha and its subsequent growth. Inspired by the role of microtubule-transported vesicles, we embody the internal dynamics of mass inside a hypha with mutually excluding particles progressing stochastically along a growing one-dimensional lattice. The connection between long range transport of materials for growth, and the resulting extension of the hyphal tip has not previously been addressed in the modelling literature. We derive and analyse mean-field equations for the model and present a phase diagram of its steady state behaviour, which we compare to simulations. We discuss our results in the context of the filamentous fungus, Neurospora crassa.
description: 5 pages, 5 figures
W$^+$W$^-$ boson pair production in proton-proton collisions at $\sqrt{s} =$ 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A measurement of the W$^+$W$^-$ boson pair production cross section in proton-proton collisions at $\sqrt{s} =$ 13 TeV is presented. The data used in this study are collected with the CMS detector at the CERN LHC and correspond to an integrated luminosity of 35.9 fb$^{-1}$. The W$^+$W$^-$ candidate events are selected by requiring two oppositely charged leptons (electrons or muons). Two methods for reducing background contributions are employed. In the first one, a sequence of requirements on kinematic quantities is applied allowing a measurement of the total production cross section: 117.6 $\pm$ 6.8 pb, which agrees well with the theoretical prediction. Fiducial cross sections are also reported for events with zero or one jet, and the change in the zero-jet fiducial cross section with the jet transverse momentum threshold is measured. Normalized differential cross sections are reported within the fiducial region. A second method for suppressing background contributions employs two random forest classifiers. The analysis based on this method includes a measurement of the total production cross section and also a measurement of the normalized jet multiplicity distribution in W$^+$W$^-$ events. Finally, a dilepton invariant mass distribution is used to probe for physics beyond the standard model in the context of an effective field theory, and constraints on the presence of dimension-6 operators are derived.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables, including additional supplementary figures, can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/SMP-18-004 (CMS Public Pages)
Friedel oscillations induced by magnetic skyrmions: from scattering properties to all-electrical detection
Creators: name: Bouhassoune, Mohammed
name: Lounis, Samir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Magnetic skyrmions are spin swirling solitonic defects that can play a major role in information technology. Their future in applications and devices hinges on their efficient manipulation and detection. Here, we explore from ab-initio their nature as magnetic inhomongeities in an otherwise unperturbed magnetic material, Fe layer covered by a thin Pd film and deposited on top of Ir(111) surface. The presence of skyrmions triggers scattering processes, from which Friedel oscillations emerge. The latter mediate interactions among skyrmions or between skyrmions and other potential surrounding defects. In contrast to their wavelengths, the amplitude of the oscillations depends strongly on the size of the skyrmion. The analogy with the scattering-off atomic defects enables the assignment of an effective scattering potential and a phase shift to the skyrmionic particles, which can be useful to predict their behavior on the basis of simple scattering frameworks. The induced charge ripples can be utilized for a noninvasive all-electrical detection of skyrmions located on a surface or even if buried a few nanometers away from the detecting electrode.
On the microscopic mechanisms behind hyperferroelectricity
Creators: name: Khedidji, Mohamed
name: Amoroso, Danila
name: Djani, Hania
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Hyperferroelectrics are receiving a growing interest thanks to their unique property to retain a spontaneous polarization even in presence of a depolarizing field. Nevertheless, general microscopic mechanisms driving hyperferroelectricity, which is ascribed to the softening of a polar $LO$ mode, are still missing. Here, by means of phonons calculations and force constants analysis in two class of hyperferroelectrics, the ABO$_3$-LiNbO3-type systems and the prototypical hexagonal-ABC systems, we unveiled common features in the dynamical properties of a hyperferroelectric behind such $LO$ instability: negative or vanishing on-site force constant associated to the cation driving the $LO$ polar distortion, and destabilizing cation-anion interactions, both induced by short-range forces. We also predict possible enhancement of the hyperferroelectric properties by applying an external positive pressure; pressure strengthens the destabilizing short-range interactions. Particularly, the increase in the mode effective charges associated to the unstable $LO$ mode under pressure suggests an eventual enhancement of the $D$=0 polarization under compressive strain.
The interaction of slow J/psi and psi' with nucleons
Creators: name: Sibirtsev, A.
name: Voloshin, M. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The interaction of the charmonium resonances J/psi and psi' with nucleons at low energies is considered using the multipole expansion and low-energy theorems in QCD. A lower bound is established for the relevant gluonic operator average over the nucleon. As a result we find the discussed interaction to be significantly stronger than previously estimated in the literature. In particular we conclude that the cross section of the J/psi - nucleon elastic scattering at the threshold is very likely to exceed 17 millibarn and that existence of bound states of the J/psi in light nuclei is possible. For the psi' resonance we estimate even larger elastic scattering cross section and also a very large cross section of the process psi'+N -> psi+N giving rise to the decay width of tens of MeV for the psi' resonance in heavy nuclei.
description: 7 pages
Der Bundesschluß als Weg zu verpflichteter Gemeinschaft der Kirchen
Creators: name: Minor, Rüdiger
name: Sens, Matthias
name: Barth, Hermann
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 36 Nr. 4 (1987): Ökumenische Rundschau, Band 36, Heft 4
Crossed optical cavities with large mode diameters
Creators: name: Heinz, A.
name: Trautmann, J.
name: Šantić, N.
name: Park, A. J.
name: Bloch, I.
name: Blatt, S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We report on a compact, ultrahigh-vacuum compatible optical assembly to create large-scale, two-dimensional optical lattices for use in experiments with ultracold atoms. The assembly consists of an octagon-shaped spacer made from ultra-low-expansion glass, to which we optically contact four fused-silica cavity mirrors, making it highly mechanically and thermally stable. The mirror surfaces are nearly plane-parallel which allows us to create two perpendicular cavity modes with diameters $\sim$1 mm. Such large mode diameters are desirable to increase the optical lattice homogeneity, but lead to strong angular sensitivities of the coplanarity between the two cavity modes. We demonstrate a procedure to precisely position each mirror substrate that achieves a deviation from coplanarity of $d = 1(5)$ $μ$m. Creating large optical lattices at arbitrary visible and near infrared wavelengths requires significant power enhancements to overcome limitations in the available laser power. The cavity mirrors have a customized low-loss mirror coating that enhances the power at a set of relevant wavelengths from the visible to the near infrared by up to three orders of magnitude.
description: 4 pages, 4 figures, 1 page supplemental material
On Darboux transformation of the supersymmetric sine-Gordon equation
Creators: name: Siddiq, M.
name: Hassan, M.
name: Saleem, U.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Darboux transformation is constructed for superfields of the super sine-Gordon equation and the superfields of the associated linear problem. The Darboux transformation is shown to be related to the super Bäcklund transformation and is further used to obtain $N$ super soliton solutions.
description: 9 Pages
Enantioselective photoelectrocyclization of tropolone derivative in solid state
Creators: name: Wang, Letian
Publisher: name: University of British Columbia
Year: 2009

description: Acid 27 and its esters (29 and 21) were prepared, and studies of their photochemical reactivity were investigated in solution. The acid reacts with optical pure amines to form salts whose photoelectrocyclization reactions were studied in solid state. The chiral amines serve as an ionic chiral auxiliary to induce asymmetric synthesis of 32 which could give satisfied enantiomeric excess (up to 79%). The effort has been tried to stop the reaction at the first step that gives only cyclization product. But both compound 29 and 21 gave photorearrangement product 32 and 31. Some other tropolone derivatives with phenyl group also have been synthesized and their photochemical reactions were studied in solution phase. The highlight of the project was to apply the ionic chiral auxiliary method, which was successfully in asymmetric induction in di-π-methane rearrangement reaction and Norrish/Yang type II reaction, to photoelectrocyclization reaction.
DeepTake: Prediction of Driver Takeover Behavior using Multimodal Data
Creators: name: Pakdamanian, Erfan
name: Sheng, Shili
name: Baee, Sonia
name: Heo, Seongkook
name: Kraus, Sarit
name: Feng, Lu
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences
subject: I.2.6; J.4

description: Automated vehicles promise a future where drivers can engage in non-driving tasks without hands on the steering wheels for a prolonged period. Nevertheless, automated vehicles may still need to occasionally hand the control back to drivers due to technology limitations and legal requirements. While some systems determine the need for driver takeover using driver context and road condition to initiate a takeover request, studies show that the driver may not react to it. We present DeepTake, a novel deep neural network-based framework that predicts multiple aspects of takeover behavior to ensure that the driver is able to safely take over the control when engaged in non-driving tasks. Using features from vehicle data, driver biometrics, and subjective measurements, DeepTake predicts the driver's intention, time, and quality of takeover. We evaluate DeepTake performance using multiple evaluation metrics. Results show that DeepTake reliably predicts the takeover intention, time, and quality, with an accuracy of 96%, 93%, and 83%, respectively. Results also indicate that DeepTake outperforms previous state-of-the-art methods on predicting driver takeover time and quality. Our findings have implications for the algorithm development of driver monitoring and state detection.
description: Accepted to CHI 2021
title: Energiewende durch tiefe Geothermie
title: Geothermische Nutzung von Tunnelanlagen
titleType: Subtitle
Creators: name: Voit, Klaus
name: Götzl, Gregor
Publisher: name: Zenodo
Year: 2021

description: Geothermische Energie ist der Schlüssel zur Energiewende. Sie nutzt die in der Erdkruste gespeicherte thermische Energie. Die Nutzung dieses bereits vorhandenen und quasi unerschöpflichen Energiereservoirs ist emissionsfrei, wodurch die Geothermie zu den erneuerbaren Energieformen zählt. Im Unterschied zur oberflächennahen geothermischen Nutzung mit Tiefen bis ≤ 300 m werden mittels tiefer Geothermie Tiefenbereiche > 300 m erschlossen. Die Leistung von tiefen Anlagen ist dabei – durch das höhere Temperaturniveau in Abhängigkeit des geothermischen Gradienten – um ein Vielfaches höher.
Multivariate p-dic L-function
Creators: name: Kim, Taekyun
Publisher: name: arXiv
Year: 2005
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B68, 11M99,11S80

description: We construct multivariate p-adic L-function in the p-adic number fild by using Washington method.
description: 9 pages
Influence of drying conditions on the stress and weight development of capillary suspensions
Creators: name: Fischer, Steffen B.
name: Koos, Erin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Cracking of suspensions during drying is a common problem. While additives, e.g. binders and surfactants, can mitigate this problem, some applications, such as printing conductive pastes or sintering green bodies, do not lend themselves to the use of additives. Capillary suspensions provide an alternative formulation without additives. In this work, we use simultaneous stress and weight measurements to investigate the influence of formulation and drying conditions. Capillary suspensions dry more homogeneously and with lower peak stresses, leading to an increased robustness against cracking compared. An increase in dry film porosity is not the key driver for the stress reduction. Instead, the capillary bridges, which create strong particle networks, resist the stress. Increasing the relative humidity enhances this effect, even for pure suspensions. While lower boiling point secondary liquids, e.g. water, persist for very long times during drying, higher boiling point liquids offer further potential to tune the the drying process.
A non-LTE abundance analysis of the post-AGB star ROA 5701
Creators: name: Thompson, H. M. A.
name: Keenan, F. P.
name: Dufton, P. L.
name: Ryans, R. S. I.
name: Smoker, J. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: An analysis of high-resolution Anglo-Australian Telescope (AAT)/ University College London Echelle Spectrograph (UCLES) optical spectra for the ultraviolet (UV)-bright star ROA 5701 in the globular cluster omega Cen (NGC 5139) is performed, using non-local thermodynamic equilibrium (non-LTE) model atmospheres to estimate stellar atmospheric parameters and chemical composition. Abundances are derived for C, N, O, Mg, Si and S, and compared with those found previously by Moehler et al. We find a general metal underabundance relative to young B-type stars, consistent with the average metallicity of the cluster. Our results indicate that ROA 5701 has not undergone a gas-dust separation scenario as previously suggested. However, its abundance pattern does imply that ROA 5701 has evolved off the AGB prior to the onset of the third dredge-up.
description: 9 pages, 2 figures. Accepted for publication in MNRAS (Online Early)
Optical-to-NIR magnitude measurements of the Starlink LEO Darksat satellite and effectiveness of the darkening treatment
Creators: name: Tregloan-Reed, J.
name: Otarola, A.
name: Unda-Sanzana, E.
name: Haeussler, B
name: Gaete, F.
name: Colque, J. P.
name: González-Fernández, C.
name: Anais, J.
name: Molina, V.
name: González, R.
name: Ortiz, E.
name: Mieske, S.
name: Brillant, S.
name: Anderson, J. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Four observations of Starlink's LEO communication satellites, Darksat and STARLINK-1113, were conducted on two nights with two telescopes. The Chakana 0.6\,m telescope at the Ckoirama observatory (Chile) observed both satellites on 5\,Mar\,2020 (UTC) and 7\,Mar\,2020 (UTC) using a Sloan r' and Sloan i' filter, respectively. The ESO VISTA 4.1\,m telescope with the VIRCAM instrument observed both satellites on 5\,Mar\,2020 (UTC) and 7\,Mar\,2020 (UTC) in the NIR J-band and Ks-band, respectively. The calibration, image processing, and analysis of the Darksat images give r\,$\approx$\,5.6\,mag, i\,$\approx$\,5.0\,mag, J\,$\approx$\,4.2\,mag, and Ks\,$\approx$\,4.0\,mag when scaled to a range of 550\,km (airmass $=1$) and corrected for the solar incidence and observer phase angles. In comparison, the STARLINK-1113 images give r\,$\approx$\,4.9\,mag, i\,$\approx$\,4.4\,mag, J\,$\approx$\,3.8\,mag, and Ks\,$\approx$\,3.6\,mag when corrected for range, solar incidence, and observer phase angles. The data and results presented in this work show that the special darkening coating used by Starlink for Darksat has darkened the Sloan r' magnitude by 50\,\%, Sloan i' magnitude by 42\,\%, NIR J magnitude by 32\,\%, and NIR Ks magnitude by 28\,\%. The results show that both satellites increase in reflective brightness with increasing wavelength and that the effectiveness of the darkening treatment is reduced at longer wavelengths. This shows that the mitigation strategies being developed by Starlink and other LEO satellite operators need to take into account other wavelengths, not just the optical. This work highlights the continued importance of obtaining multi-wavelength observations of many different LEO satellites in order to characterise their reflective properties and to aid the community in developing impact simulations and developing mitigation tools.
description: Accepted for publication in A&A, 10 pages, 10 figures, 3 tables
title: Analysis of Movements and Forces on Bridge Approaches:
title: A Case Study
titleType: Subtitle
title: (Bridge over Chesapeake Ave. on Interstate 471 in Campbell County, Kentucky)
titleType: Subtitle
Creators: name: Allen, David L.
name: Meade, Bobby W.
name: Hopkins, Tommy C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1985
Subjects: subject: Transportation Engineering

description: A case study is presented of a bridge on Interstate 471 in Campbell County, Kentucky. The south approach to the bridge is a side-hill fill. During construction, the south intermediate piers tilted as a result of movement in the south approach foundation. Construction was temporarily halted on the south approach embankment, allowing pore pressures in the foundation to dissipate and slowing the movement. The piers were than reconstructed.  The south approach end bents were instrumented with earth pressure meters. The piles were instrumented with slope inclinometers. Most recent data show that movement is continuing and the present factor of safety is approximately 1.03.