cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
CXCR3 is involved in tubulointerstitial injury in human glomerulonephritis
Creators: name: Segerer, Stephan
name: Banas, Bernhard
name: Wörnle, Markus
name: Schmid, Holger
name: Cohen, Clemens D.
name: Kretzler, Matthias
name: Mack, Matthias
name: Kiss, Eva
name: Nelson, Peter J.
name: Schlöndorff, Detlef
name: Gröne, Hermann-Josef
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 610 Medizin

description: Chemokines play pivotal roles in the recruitment of inflammatory cells into the kidney. The chemokine receptors CXCR3 and CCR5 are expressed on activated T lymphocytes, and expression of CXCR3 by mesangial cells has been suggested. Detailed description of CXCR3 expression might form a rational basis for use as a diagnostic marker and for therapeutic CXCR3 targeting in human glomerulonephritis. We studied the expression of CXCR3 in renal biopsies by immunohistochemistry (n = 45), and real time RT-PCR (n = 78). Biopsies were from patients with IgA nephropathy, lupus nephritis, and membranoproliferative glomerulonephritis. Furthermore, cultured human mesangial cells (HMC) were studied for CXCR3 expression, and for functional responses to the ligands CXCL10/IP-10 and CXCL9/Mig. CXCR3-positive cells were rarely found in glomerular tufts, but formed a major part of the tubulointerstitial infiltrates. Consistently, CXCR3 mRNA expression was too low to be quantified in glomerular compartments, and was not detectable in HMC. The published staining for CXCR3 of mesangial cells could be traced to cross-reactivity of an antibody for CXCR3 with a potentially related chemokine receptor as revealed by FACS analysis. Despite an absence of CXCR3 expression, mesangial cells reacted to CXCR3 ligands by proliferation and migration, which was blocked by pertussis toxin but not by an anti-CXCR3 antibody. These results indicate that HMC do not express the classical CXCR3, but may potentially express a related receptor with shared ligand specificity. By immunohistochemistry the number of CXCR3-positive cells, mainly interstitial T cells, correlated with renal function, proteinuria, and percentage of globally sclerosed glomeruli. A significant morphological and numerical correlation between CD3, CXCR3, and CCR5-positive cells indicated a CXCR3/CCR5 double-positive T cell population. No apparent difference in the CXCR3 expression pattern was found between disease entities. CXCR3 expression was localized to interstitial T cells, and these cells correlated strongly with important prognostic markers. Therefore interstitial CXCR3, as well as CCR5-positive T cells might play an important role during progressive loss of renal function, and are potential therapeutic targets in human glomerular diseases.
Creation and pinning of vortex-antivortex pairs
Creators: name: Kim, Sangbum
name: Hu, Chia-Ren
name: Andrews, Malcolm J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Computer modeling is reported about the creation and pinning of a magnetic vortex-antivortex (V-AV) pair in a superconducting thin film, due to the magnetic field of a vertical magnetic dipole above the film, and two antidot pins inside the film. For film thickness $= 0.1ξ$, $κ= 2$, and no pins, we find the film carries two V-AV pairs at steady state in the imposed flux range $2.10Φ_0 < Φ^+ < 3.0Φ_0$, and no pairs below. With two antidot pins suitably introduced into the film, a single V-AV pair can be stable in the film for $Φ^+ \ge 1.3Φ_0$. At pin separation $\ge 17ξ$, we find the V-AV pair remains pinned after the dipole field is removed, and, so can represent a 1 for a nonvolatile memory.
description: 8 pages, 6 figures
Almost Periodic Szegő Cocycles with Uniformly Positive Lyapunov Exponents
Creators: name: Damanik, David
name: Krueger, Helge
Publisher: name: arXiv
Year: 2008
Subjects: subject: Spectral Theory (math.SP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 37D25, 42C05

description: We exhibit examples of almost periodic Verblunsky coefficients for which Herman's subharmonicity argument applies and yields that the associated Lyapunov exponents are uniformly bounded away from zero.
description: 5 Pages
Hallensleben, Barbara, Vergauwen, Guido, Wyrwoll, Klaus: Kyrill, Patriach von Moskau und der ganzen Rus'
Creators: name: Heller, Dagmar
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 59 Nr. 3 (2010): Ökumenische Rundschau, Band 59, Heft 3
Model independent analysis of polarization effects in elastic electron deuteron scattering in presence of two--photon exchange
Creators: name: Gakh, G. I.
name: Tomasi-Gustafsson, E.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The general spin structure of the matrix element, taking into account the two--photon exchange contribution, for the elastic electron (positron) --deuteron scattering has been derived using general symmetry properties of the hadron electromagnetic interaction, such as P--, C-- and T--invariances as well as lepton helicity conservation in QED at high energy. Taking into account also crossing symmetry, the amplitudes of $e^{\mp}d-$scattering can be parametrized in terms of fifteen real functions. The expressions for the differential cross section and for all polarization observables are given in terms of these functions. We consider the case of an arbitrary polarized deuteron target and polarized electron beam (both longitudinal and transverse). The transverse polarization of the electron beam induces a single--spin asymmetry which is non--zero in presence of two--photon exchange. It is shown that elastic deuteron electromagnetic form factors can still be extracted in presence of two photon exchange, from the measurements of the differential cross section and of one polarization observable (for example, the tensor asymmetry) for electron and positron deuteron elastic scattering, in the same kinematical conditions.
description: 28 pages
One-Loop Electron Mass and Three-Loop Dirac Neutrino Masses
Creators: name: Ma, Ernest
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the context of a left-right extension of the standard model of quarks and leptons with the addition of a gauged $U(1)_D$ dark symmetry, it is shown how the electron may obtain a radiative mass in one loop and two Dirac neutrinos obtain masses in three loops.
description: 8 pages, 4 figures, reference corrected
Dielectric (p,q) Strings in a Throat
Creators: name: Firouzjahi, Hassan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We calculate the (p,q) string spectrum in a warped deformed conifold using the dielectric brane method. The spectrum is shown to have the same functional form as in the dual picture of a wrapped D3-brane with electric and magnetic fluxes on its world volume. The agreement is exact in the limit where q is large. We also calculate the dielectric spectrum in the S-dual picture. The spectrum in the S-dual picture has the same form as in the original picture but it is not exactly S-dual invariant due to an interchange of Casimirs of the non-Abelian gauge symmetries. We argue that in order to restore S-duality invariance the non-Abelian brane action should be refined, probably by a better prescription for the non-Abelian trace operation.
Pseudomicrothorax agilis Mermod 1914
Creators: name: Durán-Ramírez, Carlos Alberto
name: Dias, Roberto Júnio Pedroso
name: Estrada, Rosaura Mayén-
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Chromista
Ciliophora
Nassophorea
Nassulida
Pseudomicrothoracidae
Pseudomicrothorax
Pseudomicrothorax agilis

description: Pseudomicrothorax agilis Mermod, 1914
Distribution. BRAZIL: Paraná River between the Nupelia’s Field Station and the district of Porto São José, São Pedro do Paraná (Buosi et al. 2014 b, 2015), (Ad).
description: Published as part of Durán-Ramírez, Carlos Alberto, Dias, Roberto Júnio Pedroso & Estrada, Rosaura Mayén-, 2020, Checklist of ciliates (Alveolata: Ciliophora) that inhabit in bromeliads from the Neotropical Region, pp. 1-36 in Zootaxa 4895 (1) on page 19, DOI: 10.11646/zootaxa.4895.1.1, http://zenodo.org/record/4321437
Infinite quantum well: a coherent state approach
Creators: name: de Leon, P. L. Garcia
name: Gazeau, J. P.
name: Queva, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A new family of 2-component vector-valued coherent states for the quantum particle motion in an infinite square well potential is presented. They allow a consistent quantization of the classical phase space and observables for a particle in this potential. We then study the resulting position and (well-defined) momentum operators. We also consider their mean values in coherent states and their quantum dispersions.
description: 24 pages, 8 figures
Nucleolus association of chromosomal domains is largely maintained in cellular senescence despite massive nuclear reorganisation
Creators: name: Dillinger, Stefan
name: Straub, Tobias
name: Németh, Attila
Publisher: name: Universität Regensburg
Year: 2017
Subjects: subject: LAMINA INTERACTIONS; HETEROCHROMATIN FORMATION; ORGANIZER REGIONS; GENE-EXPRESSION; HUMAN GENOME; CHROMATIN ORGANIZATION; SAHF FORMATION; INACTIVE-X; CELLS; ARCHITECTURE;
subject: 570 Biowissenschaften, Biologie

description: Mammalian chromosomes are organized in structural and functional domains of 0.1-10 Mb, which are characterized by high self-association frequencies in the nuclear space and different contact probabilities with nuclear sub-compartments. They exhibit distinct chromatin modification patterns, gene expression levels and replication timing. Recently, nucleolus-associated chromosomal domains (NADs) have been discovered, yet their precise genomic organization and dynamics are still largely unknown. Here, we use nucleolus genomics and single-cell experiments to address these questions in human embryonic fibroblasts during replicative senescence. Genome-wide mapping reveals 1,646 NADs in proliferating cells, which cover about 38% of the annotated human genome. They are mainly heterochromatic and correlate with late replicating loci. Using Hi-C data analysis, we show that interactions of NADs dominate interphase chromosome contacts in the 10-50 Mb distance range. Interestingly, only minute changes in nucleolar association are observed upon senescence. These spatial rearrangements in subdomains smaller than 100 kb are accompanied with local transcriptional changes. In contrast, large centromeric and pericentromeric satellite repeat clusters extensively dissociate from nucleoli in senescent cells. Accordingly, H3K9me3-marked heterochromatin gets remodelled at the perinucleolar space as revealed by immunofluorescence analyses. Collectively, this study identifies connections between the nucleolus, 3D genome structure, and cellular aging at the level of interphase chromosome organization.
The Fluid Nature of Quark-Gluon Plasma
Creators: name: Zajc, W. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Collisions of heavy nuclei at very high energies offer the exciting possibility of experimentally exploring the phase transformation from hadronic to partonic degrees of freedom which is predicted to occur at several times normal nuclear density and/or for temperatures in excess of $\sim 170$ MeV. Such a state, often referred to as a quark-gluon plasma, is thought to have been the dominant form of matter in the universe in the first few microseconds after the Big Bang. Data from the first five years of heavy ion collisions of Brookhaven National Laboratory's Relativistic Heavy Ion Collider (RHIC) clearly demonstrate that these very high temperatures and densities have been achieved. While there are strong suggestions of the role of quark degrees of freedom in determining the final-state distributions of the produced matter, there is also compelling evidence that the matter does {\em not} behave as a quasi-ideal state of free quarks and gluons. Rather, its behavior is that of a dense fluid with very low kinematic viscosity exhibiting strong hydrodynamic flow and nearly complete absorption of high momentum probes. The current status of the RHIC experimental studies is presented, with a special emphasis on the fluid properties of the created matter, which may in fact be the most perfect fluid ever studied in the laboratory.
description: 12 pages, 5 figures; to appear in Proceedings of the 2007 International Conference on Nuclear Physics; version posted as submitted on 27-Sep-07
What's the trouble with anthropic reasoning?
Creators: name: Trotta, Roberto
name: Starkman, Glenn D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Selection effects in cosmology are often invoked to "explain" why some of the fundamental constant of Nature, and in particular the cosmological constant, take on the value they do in our Universe. We briefly review this probabilistic "anthropic reasoning" and we argue that different (equally plausible) ways of assigning probabilities to candidate universes lead to totally different anthropic predictions, presenting an explicit example based on the total number of possible observations observers can carry out. We conclude that in absence of a fundamental motivation for selecting one weighting scheme over another the anthropic principle cannot be used to explain the value of Lambda. .
description: 8 pages, no figures. Contribution to the proceedings of the conference "The Dark Side of the Universe", Madrid, June 2006
Laser engineering of biomimetic surfaces
Creators: name: Stratakis, E.
name: Bonse, J.
name: Heitz, J.
name: Siegel, J.
name: Tsibidis, G. D.
name: Skoulas, E.
name: Papadopoulos, A.
name: Mimidis, A.
name: Joel, A. -C.
name: Comanns, P.
name: Krüger, J.
name: Florian, C.
name: Fuentes-Edfuf, Y.
name: Solis, J.
name: Baumgartner, W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The exciting properties of micro- and nano-patterned surfaces found in natural species hide a virtually endless potential of technological ideas, opening new opportunities for innovation and exploitation in materials science and engineering. Due to the diversity of biomimetic surface functionalities, inspirations from natural surfaces are interesting for a broad range of applications in engineering, including phenomena of adhesion, friction, wear, lubrication, wetting phenomena, self-cleaning, antifouling, antibacterial phenomena, thermoregulation and optics. Lasers are increasingly proving to be promising tools for the precise and controlled structuring of materials at micro- and nano-scales. When ultrashort-pulsed lasers are used, the optimal interplay between laser and material parameters enables structuring down to the nanometer scale. Besides this, a unique aspect of laser processing technology is the possibility for material modifications at multiple (hierarchical) length scales, leading to the complex biomimetic micro- and nano-scale patterns, while adding a new dimension to structure optimization. This article reviews the current state of the art of laser processing methodologies, which are being used for the fabrication of bioinspired artificial surfaces to realize extraordinary wetting, optical, mechanical, and biological-active properties for numerous applications. The innovative aspect of laser functionalized biomimetic surfaces for a wide variety of current and future applications is particularly demonstrated and discussed. The article concludes with illustrating the wealth of arising possibilities and the number of new laser micro/nano fabrication approaches for obtaining complex high-resolution features, which prescribe a future where control of structures and subsequent functionalities are beyond our current imagination.
Longitudinal dynamics with RF phase modulation in the LNLS electron storage ring
Creators: name: Abreu, N. P.
name: Tavares, P. F.
name: Farias, R. H. A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: In the Brazilian synchrotron light source, we observed that modulating the phase of the accelerating fields at approximately twice the synchrotron frequency suppressed remarkably well a longitudinal coupled-bunch mode of the beam driven by a higher order mode (HOM) in one of the radiofrequency (RF) cavities. In this work, we present the results of a set of systematic measurements, in single and multibunch mode, aimed at characterizing the effects of RF phase modulation on the beam. We compare those experiments with the results of tracking simulations and of a theoretical model in which Landau damping is the stabilizing mechanism that explains the suppression of the longitudinal coupled bunch instability. We also measure the frequency of the stable islands created in longitudinal phase space by phase modulation and the longitudinal beam transfer function (BTF) as a function of the modulation frequency and amplitude. The experimental results are in good agreement with theoretical expectations.
description: to be submitted to PR-STAB
Quasielastic production of polarized $τ$ leptons in $ν_τ$ and $\barν_τ$ scattering from nucleons
Creators: name: Fatima, A.
name: Athar, M. Sajjad
name: Singh, S. K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The cross sections and polarization components of the $τ$ leptons produced in the charged current induced quasielastic $ν_τ~(\barν_τ) - N$ scattering have been studied. The theoretical uncertainties arising due to the use of different vector form factors and the axial dipole mass in the axial vector form factor have been investigated. Due to the high mass of $τ$ lepton, the contributions from the term containing pseudoscalar and second class current form factors are non-negligible and contribute to the uncertainty in the cross section and polarization observables as these form factors are not well known. In view of the currently proposed experiments by DUNE, SHiP and DsTau collaborations to study the production of $τ$ lepton, an updated calculation of the cross sections and polarizations of tau leptons in the case of quasielastic production have been done and the numerical results have been presented along with a discussion of the theoretical uncertainties.
description: 22 pages, 13 figures, regular article
Data Traffic Dynamics and Saturation on a Single Link
Creators: name: Smith, Reginald D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Performance (cs.PF)
subject: FOS: Computer and information sciences

description: The dynamics of User Datagram Protocol (UDP) traffic over Ethernet between two computers are analyzed using nonlinear dynamics which shows that there are two clear regimes in the data flow: free flow and saturated. The two most important variables affecting this are the packet size and packet flow rate. However, this transition is due to a transcritical bifurcation rather than phase transition in models such as in vehicle traffic or theorized large-scale computer network congestion. It is hoped this model will help lay the groundwork for further research on the dynamics of networks, especially computer networks.
description: 10 pages, 5 figures
Sources of $H_0$-tensions in dark energy scenarios
Creators: name: Haridasu, Balakrishna S.
name: Viel, Matteo
name: Vittorio, Nicola
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: By focusing on the simple $w\neq-1$ extension to $Λ$CDM, we assess which epoch(s) possibly source the $H_0$-tension. We consider Cosmic Microwave Background (CMB) data in three possible ways: $i)$ complete CMB data; $ii)$ excluding the $l<30$ temperature and polarization likelihoods; $iii)$ imposing early universe priors, that disentangle early and late time physics. Through a joint analysis with low-redshift supernovae type-Ia and gravitationally lensed time delay datasets, {and neglecting galaxy clustering Baryonic Acoustic Oscillation (BAO) data}, we find that the inclusion of early universe CMB priors is consistent with the local estimate of $H_0$ while excluding the low-$l$+lowE likelihoods mildly relaxes the tension. This is in contrast to joint analyses with the complete CMB data. Our simple implementation of contrasting the effect of different CMB priors on the $H_0$ estimate shows that the early universe information from the CMB data when decoupled from late-times physics could be in agreement with a higher value of $H_0$. {We also find no evidence for the early dark energy model using only the early universe physics within the CMB data. Finally using the BAO data in different redshift ranges to perform inverse distance ladder analysis, we find that the early universe modifications, while being perfectly capable of alleviating the $H_0$-tension when including the BAO galaxy clustering data, would be at odds with the Ly-$α$ BAO data due to the difference in $r_{\rm d}\, vs.\, H_0$ correlation between the two BAO datasets.} We therefore infer and speculate that source for the $H_0$-tension between CMB and local estimates could possibly originate in the modeling of late-time physics within the CMB analysis. This in turn recasts the $H_0$-tension as an effect of late-time physics in CMB, instead of the current early-time CMB vs. local late-time physics perspective.
description: 16 pages, 8 figures
The Adiabatic Invariance of the Action Variable in Classical Dynamics
Creators: name: Wells, Clive G.
name: Siklos, Stephen T. C.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We consider one-dimensional classical time-dependent Hamiltonian systems with quasi-periodic orbits. It is well-known that such systems possess an adiabatic invariant which coincides with the action variable of the Hamiltonian formalism. We present a new proof of the adiabatic invariance of this quantity and illustrate our arguments by means of explicit calculations for the harmonic oscillator. The new proof makes essential use of the Hamiltonian formalism. The key step is the introduction of a slowly-varying quantity closely related to the action variable. This new quantity arises naturally within the Hamiltonian framework as follows: a canonical transformation is first performed to convert the system to action-angle coordinates; then the new quantity is constructed as an action integral (effectively a new action variable) using the new coordinates. The integration required for this construction provides, in a natural way, the averaging procedure introduced in other proofs, though here it is an average in phase space rather than over time.
description: 8 pages
Optically induced nonreciprocity by a plasmonic pump in semiconductor wires
Creators: name: Song, Kil-Song
name: Im, Song-Jin
name: Pae, Ji-Song
name: Ri, Chol-Song
name: Ho, Kum-Song
name: Kim, Chol-Sun
name: Han, Yong-Ha
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In most studies on all-optical diodes spatial asymmetry has been by necessity applied to break Lorentz reciprocity. Here we suggest a paradigm for optically induced nonreciprocity in semiconductor wires which are spatially asymmetry-free and provide a very simple and efficient platform for plasmonic devices. An azimuthal magnetic field induced by a plasmonic pump in the semiconductor wire alters the material parameters and thus results in a cross-nonlinear modulation of the plasmonic signal. Peculiarly the nonlinear wavenumber shift has opposite signs for forward and backward signals whereas Kerr or Kerr-like nonlinearity does not break Lorentz reciprocity in spatially symmetric structures. This principle may open an avenue towards highly integrated all-optical nonreciprocal devices.
The bisecting N-acetylglucosamine of N-glycans appear dispensable for development and reproduction
Creators: name: Priatel, John Jacob
Publisher: name: University of British Columbia
Year: 2009

description: The biosynthesis of complex asparagine (N)-linked oligosaccharides in vertebrates proceeds with the linkage of N-acetylglucosamine (GlcNAc) to the core mannose residues. UDP-N-acetylglucosamine:β-D-mannoside β-4 N-acetylglucosaminyltransferase HI (GlcNAc-TIII, E.C. 2.4.1.144) catalyzes the addition of GlcNAc to the mannose that is itself β-4 linked to underlying Nacetylglucosamine. GlcNAc-TIII thereby produces what is known as a "bisecting" GlcNAc linkage which can be found on various hybrid and complex N-glycans. GlcNAc-TIII can also play a regulatory role in N-glycan biosynthesis as addition of the bisecting GlcNAc eliminates the potential for a-mannosidase-II, GlcNAc-TII, GlcNAc-TIV, GlcNAc-TV, and core αl-6-fucosyltransferase to act. To investigate the physiologic relevance of GlcNAc-TIII function and bisected N-glycans, the mouse gene encoding GlcNAc-TIII (Mgat3) was cloned, characterized, and inactivated using Cre/loxP site-directed recombination. The Mgat3 gene is highly conserved in comparison to the rat and human homologs and is normally expressed at high levels in brain and kidney tissue. Using fluorescence in situ hybridization (FISH), the Mgat3 gene was regionally mapped to chromosome 15E11, near the Scn8a sodium channel gene at 15F1. Following homologous recombination in embryonic stem cells and Cre mediated gene deletion, Mgaf3-deficient mice were produced that lacked GlcNAc-TIII activity and E₄-PHA visualized GlcNAc-bisected N-linked oligosaccharides. Such GlcNAc-TIII null mice were found to be viable and reproduced normally. Moreover, such mice exhibited normal cellularity and morphology among organs including brain and kidney. No alterations were apparent in circulating leukocytes, red cells or in serum metabolite levels that reflect kidney function. Although we find that GlcNAc-TIII and the bisecting GlcNAc of N-glycans appear dispensable for normal development and reproduction in the mouse, it may have a role in physiologic responses to pathogenic and environmental stimuli. Moreover, it may be important for some function still to be determined.
Optical Spectroscopy as a Probe of Gaps and Kinetic Electronic Energy in p- and n-type cuprates
Creators: name: Bontemps, Nicole
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The real part of the optical in-plane conductivity of p-- and n--type cuprates thin films at various doping levels was deduced from highly accurate reflectivity measurements. We present here a comprehensive set of optical spectral weight data as a function of the temperature $T (> T_c$), for underdoped and overdoped samples. The temperature dependence of the spectral weight is not universal. Using various cut-off frequencies for the spectral weight, we show that n--type Pr$_{2-x}$Ce$_x$CuO$_4$ and p--type Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$ exhibit both similarities and striking differences. The Fermi surface is closed in overdoped metallic samples. In underdoped Pr$_{2-x}$Ce$_x$CuO$_4$ samples, it clearly breaks into arcs, giving rise to a "pseudogap" signature. It is argued that such a signature is subtle in underdoped Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$.
description: Proceedings M2SHTSCVIII, to appear in Physica C
The Infrared Afterglow of Supermassive Black Hole Mergers
Creators: name: Schnittman, Jeremy D.
name: Krolik, Julian H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We model the spectra and light curves of circumbinary accretion disks during the time after the central black holes merge. The most immediate effect of this merger is the dissipation of energy in the outer regions of the disk due to the gravitational wave energy and linear momentum flux released at merger. This has the effect of perturbing the gas in the disk, which then radiates the dissipated energy over a cooling timescale, giving a characteristic infrared signal for tens of thousands of years when the total black hole mass is M~10^8 M_sun. On the basis of a simple cosmological merger model in which a typical supermassive black hole undergoes a few major mergers during its lifetime, we predict that ~10^4-10^5 of these IR sources should be observable today and discuss the possibility of identifying them with multi-wavelength surveys such as SWIRE/XMM-LSS/XBootes and COSMOS.
description: v2: expanded discussion of optical depth calculations; ApJ in press
Gestufte Standards für die Entwicklung von Kompetenzen in der Lehrerbildung
Creators: name: Autorengruppe Passauer Lehrerbildungsstandards
Publisher: name: PAradigma: Beiträge aus Forschung und Lehre aus dem Zentrum für Lehrerbildung und Fachdidaktik
Year: 2020

description: Autorengruppe Passauer Lehrerbildungsstandards GESTUFTE STANDARDS FÜR DIE ENTWICKLUNG VON KOMPETENZEN IN DER LEHRERBILDUNG (22) Dimension 1: Gestaltung der Lehrerrolle Dimension 2: Schule als Lern- und Lebensraum Dimension 2.1: Schule als Organisation Dimension 2.2: Schulalltag und Schulleben Dimension 2.3: Unterrichtsbeobachtung und -evaluation Dimension 2.4: Entwicklung von Schule Dimension 3: Unterrichtsplanung, -durchführung und -analyse Dimension 3.1: Struktur von Unterricht Dimension 3.2: Lehrformen und -theorien Dimension 3.3: Lernumgebungen gestalten Dimension 3.4: Zeitmanagement Dimension 3.5: Planungsmittel Dimension 3.6: Medieneinsatz Dimension 3.7: Sozialformen und Methoden Dimension 3.8: Umgang mit Heterogenität Dimension 4: Klassenführung Dimension 5: Lernprozess- und Lernproduktdiagnostik Dimension 6: Beratung
description: PAradigma: Beiträge aus Forschung und Lehre aus dem Zentrum für Lehrerbildung und Fachdidaktik, Bd. 10 (2020)
Monitoring food wastein the wholesale and retail sectorin Germany 2019 - Food retail data -
Creators: name: Orr, Lia
name: Schmidt, Thomas
name: Orr, Lia
name: Schmidt, Thomas
Publisher: name: Unknown
Year: 2021
Subjects: subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: Lebensmittelhandel
subject: Monitoring
subject: Lebensmittelabfälle
subject: Lebensmittelverluste
subject: retail
subject: wholesale
subject: food waste
subject: food loss
subject: measurement
subject: monitoring

description: The aim of this report is to mapfood waste in the retail and wholesale sector in Germany for the year 2019 inthe Dialogue Forum on Wholesale and Retail, with the participating retail companies. In addition, the findings regarding the data basis and data collection process are intended to support the development of an accord by the participants in the Dialogue Forum on Wholesale and Retail (as part of the National Strategy to Reduce Food Waste). In the DialogueForum, the participating companies work together to ensure that the sustainable development goal 12.3 (halving global food waste per capita at retail and consumer level) can be achieved. This report documents the current status of the work in the Dialogue Forum with results from the food retail sector; the figures from the food wholesale sector will be added in the next report. The calculations are based on voluntarily provided data on turnover losses (markdowns) from 13 food retail and Cash and Carry companies represented by approximately 13,000 points of sale3. The participating companies cover a market share of the total retail sector in Germany of about 35%4. Markdowns include both food waste and redistributed food, such as food donations or as animal feed, as well as breakage and loss. The data do not distinguish between preventable and non-preventable food waste. In addition, they do not provide information on the actual recovery of food not sold at the retail store, since the data collection serves accounting purposes. The extrapolation of food waste for the German retail food sectoris based on a high data quality; with markdown data of partly very large companies and turnover figures of the entire sector. In this report, the entire food retail is reported for the first time in Germany (see chapter 4). Food waste in the entire retail sector is projected at around 500 thousand tons for 2019, which represents about1.5% of food turnover. The food waste in organised food retail identified here is 290 thousand tons and 210 thousand tons in the extended food retail. Due to data gaps, it is currently only possible to distinguish food waste from food redistribution (i.e. food donations) and other utilisation (i.e. animal feed) based on estimates-expert estimate for this report: 30% of losses are donated. In the course of further work, these quantities and the causes of losses must be analysed in order to derive measures for reduction.
description: DOI:10.3220/WP1613555002000
Blue Straggler Stars in Galactic Open Clusters and the effect of field star contamination
Creators: name: Carraro, G.
name: Vazquez, R. A.
name: Moitinho, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the distribution of Blue Straggler stars in the field of three open star clusters. The main purpose is to highlight the crucial role played by general Galactic disk fore-/back-ground field stars, which are often located in the same region of the Color Magnitude Diagram as Blue Straggler stars. We analyze photometry taken from the literature of 3 open clusters of intermediate/old age rich in Blue Straggler stars, and which are projected in the direction of the Perseus arm, and study their spatial distribution and the Color Magnitude Diagram. As expected, we find that a large portion of the Blue Straggler population in these clusters are simply young field stars belonging to the spiral arm. This result has important consequences on the theories of the formation and statistics of Blue Straggler stars in different population environments: open clusters, globular clusters or dwarf galaxies. As previously emphasized by many authors, a detailed membership analysis is mandatory before comparing the Blue Straggler population in star clusters against theoretical models. Moreover, these sequences of young field stars (blue plumes) are potentially powerful tracers of Galactic structure which require further consideration.
description: 11 pages, 4 figurs, in press as Research Note in A&A
Rough translation of file 024_A (collection LA 256)
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-250314-07: Rough translation (minute-by-minute) of file 024_A (tape 024, side A) from LA 256 (collection of recordings given to the Berkeley Language Center by Verdena), from the beginning of the file to 29:05; no transcription in this session, translation only. Due to re-numbering, tape 024_A has been assigned to the CLA item number LA256.024, audio file LA256.024A.
Anhang I: Die Standards geordnet nach Lehrerbildungsphasen
Creators: name: Autorengruppe Passauer Lehrerbildungsstandards
Publisher: name: PAradigma: Beiträge aus Forschung und Lehre aus dem Zentrum für Lehrerbildung und Fachdidaktik
Year: 2020

description: ANLAGE I: DIE STANDARDS GEORDNET NACH LEHRERBILDUNGSPHASEN Pädagogisch-Didaktisches Praktikum Studienbegleitendes Fachdidaktisches Praktikum Referendariat Professionelle Lehrkraft
description: PAradigma: Beiträge aus Forschung und Lehre aus dem Zentrum für Lehrerbildung und Fachdidaktik, Bd. 10 (2020)
Supplemental material and Figures from Injury-induced Cavl-expressing cells at lesion rostral side play major roles in spinal cord regeneration
Creators: name: Zeng, Chih-Wei
name: Kamei, Yasuhiro
name: Shigenobu, Shuji
name: Jin-Chuan Sheu
name: Tsai, Huai-Jen
Publisher: name: The Royal Society
Year: 2021
Subjects: Neuroscience
Developmental Biology

description: The extent of cellular heterogeneity involved in neuronal regeneration after spinal cord injury (SCI) remains unclear. Therefore, we established stress-responsive transgenic zebrafish embryos with SCI. As a result, we found an SCI-induced cell population, termed SCI stress-responsive regenerating cells (SrRCs), essential for neuronal regeneration post-SCI. SrRCs were mostly composed of subtypes of radial glia (RGs-SrRCs) and neuron stem/progenitor cells (NSPCs-SrRCs) able to differentiate into neurons, formed a bridge across the lesion and connected with neighbouring undamaged motor neurons post-SCI. Compared to SrRCs at the caudal side of the SCI site (caudal-SrRCs), rostral-SrRCs participated more actively in neuronal regeneration. After RNA-seq analysis, we discovered that caveolin 1 (cav1) was significantly upregulated in rostral-SrRCs and that cav1 was responsible for the axonal regrowth and regenerative capability of rostral-SrRCs. Collectively, we define a specific SCI-induced cell population, SrRCs, involved in neuronal regeneration, demonstrate that rostral-SrRCs exhibit higher neuronal differentiation capability and prove that cav1 is predominately expressed in rostral-SrRCs, playing a major role in neuronal regeneration after SCI.
The Stellar Content of Obscured Galactic Giant HII Regions. VI: W51A
Creators: name: Figueredo, E.
name: Blum, R. D.
name: Damineli, A.
name: Conti, P. S.
name: Barbosa, C. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present K-band spectra of newly born OB stars in the obscured Galactic giant H II region W51A and ~ 0.8'' angular resolution images in the J, H and K_S-bands. Four objects have been spectroscopically classified as O-type stars. The mean spectroscopic parallax of the four stars gives a distance of 2.0 \pm 0.3 kpc (error in the mean), significantly smaller than the radio recombination line kinematic value of 5.5 kpc or the values derived from maser propermotion observations (6--8 kpc). The number of Lyman continuum photons from the contribution of all massive stars (NLyc ~ 1.5 x 10^{50} s^{-1}) is in good agreement with that inferred from radio recombination lines (NLyc = 1.3 x 10^{50} s^{-1}) after accounting for the smaller distance derived here. We present analysis of archival high angular resolution images (NAOS CONICA at VLT and T-ReCS at Gemini) of the compact region W51 IRS2. The K_S--band images resolve the infrared source IRS~2 indicating that it is a very young compact HII region. Sources IRS2E was resolved into compact cluster (within 660 AU of projected distance) of 3 objects, but one of them is just bright extended emission. W51d1 and W51d2 were identified with compact clusters of 3 objects (maybe 4 in the case of W51d1) each one. Although IRS~2E is the brightest source in the K-band and at 12.6 \micron, it is not clearly associated with a radio continuum source. Our spectrum of IRS~2E shows, similar to previous work, strong emission in Br$γ$ and HeI, as well as three forbidden emission lines of FeIII and emission lines of molecular hydrogen (H_2) marking it as a massive young stellar object.
description: 31 pages and 9 figures, submitted to AJ
Exact results for a charged, harmonically trapped quantum gas at arbitrary temperature and magnetic field strength
Creators: name: Shea, Patrick
name: van Zyl, Brandon P.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An analytical expression for the first-order density matrix of a charged, two-dimensional, harmonically confined quantum gas, in the presence of a constant magnetic field is derived. In contrast to previous results available in the literature, our expressions are exact for any temperature and magnetic field strength. We also present a novel factorization of the Bloch density matrix in the form of a simple product with a clean separation of the zero-field and field-dependent parts. This factorization provides an alternative way of analytically investigating the effects of the magnetic field on the system, and also permits the extension of our analysis to other dimensions, and/or anisotropic confinement.
description: To appear in Phys. Rev. B
Mood dependent memory : extension and validation
Creators: name: Macaulay, Dawn Leigh
Publisher: name: University of British Columbia
Year: 2009

description: Recent studies have indicated stronger mood dependent memory (MDM) effects when subjects generate both the to-be-remembered events and the cues used in their retrieval, and when subjects who experience similar moods are compared to subjects who report a change in both pleasure and arousal, rather than others who report a change in pleasure alone. The first study was undertaken to experimentally evaluate the relationship between mood change and memory performance. Specifically, four mood manipulations were developed to compare memory performance in subjects assigned to no mood change, change in pleasure, change in arousal, or change in both pleasure and arousal. Subjects generated autobiographical events in response to neutral nouns, and were tested for free recall and recognition of these events two days later. Results demonstrated greater memory disruption after change in both pleasure and arousal than after change in pleasure alone. However, one-dimensional change in arousal led to as much memory disruption as did change in both dimensions. Separate ANOVAs compared each mood in combination with each other mood and indicated that MDM was more strongly supported in some combinations than others. Further, the pattern in free recall was different from the pattern in recognition indicating that MDM effects may vary interactively across moods and tasks. The second study was undertaken to validate prior research by employing subjects who experience large, but naturally occurring, changes in mood. Patients with rapid-cycling Bipolar Disorder performed a variety of tasks during study sessions and were tested for implicit and explicit memory during test sessions. Significant MDM effects were supported in free recall of autobiographical events and inkblot recognition, but not in implicit category production of autobiographical event probes, picture fragment completion, explicit nor implicit memory for letter associates. Results validate MDM as a real world phenomenon that impacts on explicit memory performance in subjects whose moods are not manipulated. Discussion centers on prospects for future studies that consider a wider range of manipulated moods and tasks, theories of emotion, and other clinical groups in the investigation of MDM.
On the vibrational free energy of hydrated proteins
Creators: name: Sanejouand, Yves-Henri
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: When the hydration shell of a protein is filled with at least 0.6 gram of water per gram of protein, a significant anti-correlation between the vibrational free energy and the potential energy of energy-minimized conformers is observed. This means that low potential energy, well-hydrated, protein conformers tend to be more rigid than high-energy ones. On the other hand, in the case of CASP target 624, when its hydration shell is filled, a significant average energy gap is observed between the crystal structure and the best conformers proposed during the prediction experiment, strongly suggesting that including explicit water molecules may help identifying unlikely conformers among good-looking ones.
description: 8 pages, 7 figures
Interstellar Extinction Law toward the Galactic Center II: V, J, H, and Ks Bands
Creators: name: Nishiyama, Shogo
name: Nagata, Tetsuya
name: Tamura, Motohide
name: Kandori, Ryo
name: Hatano, Hirofumi
name: Sato, Shuji
name: Sugitani, Koji
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have determined the ratios of total to selective extinction directly from observations in the optical V band and near-infrared J band toward the Galactic center. The OGLE (Optical Gravitational Lensing Experiment) Galactic bulge fields have been observed with the SIRIUS camera on the IRSF telescope, and we obtain A(V)/E(V-J)=1.251+-0.014 and A(J)/E(V-J)=0.225+-0.007. From these ratios, we have derived A(J)/A(V) = 0.188+-0.005; if we combine A(J)/A(V) with the near-infrared extinction ratios obtained by Nishiyama et al. for more reddened fields near the Galactic center, we get A(V) : A(J) : A(H) : A(Ks) = 1 : 0.188 : 0.108 : 0.062, which implies steeply declining extinction toward the longer wavelengths. In particular, it is striking that the Ks band extinction is \approx 1/16 of the visual extinction A(V) much smaller than one tenth of A(V) so far employed.
description: 8 pages, 7 figures, Accepted for publication in ApJ
A QMD description of the interaction of ion beams with matter
Creators: name: Garzelli, M. V.
name: Sala, P. R.
name: Battistoni, G.
name: Cerutti, F.
name: Ferrari, A.
name: Gadioli, E.
name: Ballarini, F.
name: Ottolenghi, A.
name: Fassò, A.
name: Pinsky, L. S.
name: Ranft, J.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Heavy-ion collisions can be simulated by means of comprehensive approaches, to include the many different reaction mechanisms which may contribute. QMD models and their relativistic extensions are examples of these approaches based on Monte Carlo techniques. In this paper are shown some results obtained by coupling a new QMD code, which describes the fast stage of ion-ion collisions, to the evaporation /fission/Fermi break-up and photon de-excitation routines present in the FLUKA multipurpose Monte Carlo transport and interaction code. In particular, we compare the predicted neutron spectra to available experimental data from thin and thick target irradiations. We show also some predictions of particle and charged fragment fluences for the interaction of C and Fe ions with a thick PMMA target, which may be useful to assess the risk of side-effects in the hadron therapy of tumours.
description: 10 pages, 6 figures. Proceedings of the 25th Workshop on Nuclear Theory, Rila Mountains, Bulgaria, June 26 - July 1, 2006
Un «protectorat» thrace? Les relations politiques entre Grecs et Thraces autour de la baie de Bourgas (IIIe‑IIe s. Av. J.‑C.)
Creators: name: Castelli, Thibaut
Publisher: name: Aristonothos. Scritti per il Mediterraneo antico
Year: 2015

description: Forthcoming.
description: Aristonothos. Scritti per il Mediterraneo antico, No 9 (2015): I Traci tra geografia e storia
Elicitation of vocabulary from Goddard's "Hupa Texts"
Creators: name: Parker, Verdena
name: Spence, Justin
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2022
Subjects: subject: hup

description: Audio file VP-250314-06: Elicitation of vocabulary from Goddard's volume "Hupa Texts" (University of California Publications in American Archaeology and Ethnology vol. 1, no. 2, 1904)