cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the convergence of the IRLS algorithm in Non-Local Patch Regression
Creators: name: Chaudhury, Kunal N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Recently, it was demonstrated in [CS2012,CS2013] that the robustness of the classical Non-Local Means (NLM) algorithm [BCM2005] can be improved by incorporating $\ell^p (0 < p \leq 2)$ regression into the NLM framework. This general optimization framework, called Non-Local Patch Regression (NLPR), contains NLM as a special case. Denoising results on synthetic and natural images show that NLPR consistently performs better than NLM beyond a moderate noise level, and significantly so when $p$ is close to zero. An iteratively reweighted least-squares (IRLS) algorithm was proposed for solving the regression problem in NLPR, where the NLM output was used to initialize the iterations. Based on exhaustive numerical experiments, we observe that the IRLS algorithm is globally convergent (for arbitrary initialization) in the convex regime $1 \leq p \leq 2$, and locally convergent (fails very rarely using NLM initialization) in the non-convex regime $0 < p < 1$. In this letter, we adapt the "majorize-minimize" framework introduced in [Voss1980] to explain these observations. [CS2012] Chaudhury et al. (2012), "Non-local Euclidean medians," IEEE Signal Processing Letters. [CS2013] Chaudhury et al. (2013), "Non-local patch regression: Robust image denoising in patch space," IEEE ICASSP. [BCM2005] Buades et al. (2005), "A review of image denoising algorithms, with a new one," Multiscale Modeling and Simulation. [Voss1980] Voss et al. (1980), "Linear convergence of generalized Weiszfeld's method," Computing.
A chip-scale, telecommunications-band frequency conversion interface for quantum emitters
Creators: name: Agha, Imad
name: Ates, Serkan
name: Davanco, Marcelo
name: Srinivasan, Kartik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We describe a chip-scale, telecommunications-band frequency conversion interface designed for low-noise operation at wavelengths desirable for common single photon emitters. Four-wave mixing Bragg scattering in silicon nitride waveguides is used to demonstrate frequency upconversion and downconversion between the 980 nm and 1550 nm wavelength regions, with signal-to-background levels >10 and conversion efficiency of approximately -60 dB at low continuous wave input pump powers (<50 mW). Finite element simulations and the split-step Fourier method indicate that increased input powers of approximately 10 W (produced by amplified nanosecond pulses, for example) will result in a conversion efficiency >25 % in existing geometries. Finally, we present waveguide designs that can be used to connect shorter wavelength (637 nm to 852 nm) quantum emitters with 1550 nm.
description: Final published version; some modifications in text and figures with respect to original
Pulsar scintillation patterns and strangelets
Creators: name: Perez-Garcia, M. Angeles
name: Silk, Joseph
name: Pen, Ue-Li
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We propose that interstellar extreme scattering events, usually observed as pulsar scintillations, may be caused by a coherent agent rather than the usually assumed turbulence of $\rm H_2$ clouds. We find that the penetration of a flux of ionizing, positively charged strangelets or quark nuggets into a dense interstellar hydrogen cloud may produce ionization trails. Depending on the specific nature and energy of the incoming droplets, diffusive propagation or even capture in the cloud are possible. As a result, enhanced electron densities may form and constitute a lens-like scattering screen for radio pulsars and possibly for quasars.
description: 5 pages, 2 figures
Code Review During Research: A Community Effort Towards Guidelines
Creators: name: Bluteau, Matthew
Publisher: name: Zenodo
Year: 2022
Subjects: code review
research software

description: This presentation was delivered to the UKHSA Code Review Workshop. It outlines the code review guidelines developed by the Research Code Review Community.
description: Presentation also available at https://researchcodereviewcommunity.github.io/ukhsa-code-review-workshop-20221207/
Uwe Schultz: Erasmus von Rotterdam - Der Fürst der Humanisten. Ein biographisches Lesebuch
Creators: name: Wittich, Peggy
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Uwe Schultz: Erasmus von Rotterdam - Der Fürst der Humanisten. Ein biographisches Lesebuch. München: Deutscher Taschenbuch Ver- lag 1998. 291 S.,19,90 DM (dtv 12608; ISBN 3- 423-12608-6).
description: Forum Classicum, Nr. 1 (1999): Forum Classicum
Alexander der Große. Bearb. v. Gerhard Hey u. Wolff-Rüdiger Heinz / Karl der Große. Bearb. v. Josef Burdich
Creators: name: Kühne, Jens
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu:

Alexander der Große. Bearb. v. Gerhard Hey u. Wolff-Rüdiger Heinz. Bamberg: Buchner 1998. 44 S., 14, 40 DM (Transit. Die Übergangslektüre. H. 1. Hrsg. v. Clement Utz u. Klaus Westphalen; ISBN 3-7661-5211-4).

Karl der Große. Bearb. v. Josef Burdich. Bamberg: Buchner 1998. 48 S., 14,40 DM (Transit. H. 3; ISBN 3-7661-5213-4).
description: Forum Classicum, Nr. 1 (1999): Forum Classicum
Neues Latein-Lexikon. Lexicon recentis Latinitatis. Deutsche Ausgabe
Creators: name: Mletzko, Manfred
Publisher: name: Forum Classicum
Year: 2017

description: Rezension zu: Neues Latein-Lexikon. Lexicon recentis Latinitatis. Deutsche Ausgabe. Bonn: Edition Lempertz (Mathias Lempertz Buchhandlung und Antiquariat GmbH, Acherstraße 20, 53111 Bonn) 1998. 443 S., 49,80 DM (ISBN 3- 933070-01-5).
description: Forum Classicum, Nr. 1 (1999): Forum Classicum
Darkling beetles of the tribe Helopini (Coleoptera: Tenebrionidae) of the world fauna
Creators: name: Nabozhenko, Maxim
Publisher: name: Zenodo
Year: 2019
Subjects: Helopini, world, lichen-feeding beetles, phylogeny, classification, bionomics, trophic assotiations, distribution, fossil Tenebrionidae

description: A revision of a vast group of darkling beetles of the tribe Helopini the world fauna was made for the first time. More than 100 new species of Helopini and 26 taxa of supraspecific ranks (including two fossil Paleogene taxa) were described, about 150 new combinations were proposed, 61 taxa were synonymized. A morphological basis was developed using recent and fossil taxa to reconstruct phylogeny and improve the classification of the group; the paleontological record of the family Tenebrionidae has been substantially refined and analyzed; phylogenetic models were obtained using morphological characters of adults and larvae, as well as genetic markers. A new balanced classification of the tribe Helopini was developed, taking into account morphology, data of phylogenetic reconstructions, distribution and biological characteristics of taxa. The presumptive paleogeographic area and time of the origin of the tribe were revealed. It was established for the first time that the majority of Helopini species are the main consumers of fruticose and foliose lichens among macroinvertebrates in the Northern Hemisphere, thus playing a critical role in many ecosystems.
Combined neutron reflectometry and rheology
Creators: name: Wolff, Max
name: Kuhns, Peter
name: Liesche, Georg
name: Ankner, John F.
name: Browning, Jim F.
name: Gutfreund, Philipp
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have combined neutron reflectometry with rheology in order to investigate the solid boundary of liquids and polymers under shear deformation. Our approach allows one to apply a controlled stress to a material while resolving the structural arrangements on the sub nanometer length scale with neutron reflectivity, off-specular and small angle scattering at the same time. The specularly reflected neutron intensity of a 20 % by weight solution of the Pluronic F127 in deuterated water is evaluated. We find pronounced changes in the near interface structure under applied deformation for surfaces with different surface energies, which are correlated with changes in the storage and loss modulus.
Depth resolved grazing incidence scattering from the solid-liquid interface
Creators: name: Wolff, Max
name: Kuhns, Peter
name: Dennison, Andrew J C
name: Liesche, Georg
name: Gutfreund, Philipp
name: Rogers, Sarah
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We have applied small angle scattering in grazing incidence beam geometry on a time-of-flight neutron instrument. Due to the broad wavelength distribution provided for a specific incident beam angle the penetration depth of the neutron beam is varied over a broad range in a single measurement. The near surface structure of polymer micelles close to silicon substrates with distinct surface energy is resolved. It is observed that the very near-surface structure strongly depends on the surface coating whereas further away from the surface bulk like ordering is found. A more pronounced ordering is found close to surfaces with high surface energy.
Location of the bow shock ahead of cloud G2 at the Galactic Center
Creators: name: Sadowski, A.
name: Narayan, R.
name: Sironi, L.
name: Ozel, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We perform detailed magnetohydrodynamic simulations of the gas cloud G2 interacting with the accretion flow around the Galactic Center black hole Sgr A*. We take as our initial conditions a steady-state, converged solution of the accretion flow obtained earlier using the general-relativistic magnetohydrodynamic code HARM. Using the observed parameters for the cloud's orbit, we compute the interaction of the cloud with the ambient gas and identify the shock structure that forms ahead of the cloud. We show that for many configurations, the cloud front crosses orbit pericenter 7 to 9 months earlier than the center-of-mass.
description: revised version, accounts for the new orbital model and recent observations; 8 pages, 7 figures, submitted to MNRAS
Singular eigenfunctions for the three-dimensional radiative transport equation
Creators: name: Machida, Manabu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Case's method obtains solutions to the radiative transport equation as superpositions of elementary solutions when the specific intensity depends on one spatial variable. In this paper, we find elementary solutions when the specific intensity depends on three spatial variables in three-dimensional space. By using the reference frame whose z-axis lies in the direction of the wave vector, the angular part of each elementary solution becomes the singular eigenfunction for the one-dimensional radiative transport equation. Thus Case's method is generalized.
Apresentação do Dossier Temático
Creators: name: Ceia, Carlos
Publisher: name: RE@D - Revista de Educação a Distância e Elearning
Year: 2022

description: Breve apresentação ao dossier temático associado à International Conference on The Impact of Video Games on Culture and Education, nos dias 17 e 18 de Fevereiro de 2022, na NOVA FCSH, em Lisboa e por videoconferência.
description: RE@D - Revista de Educação a Distância e Elearning, Vol. 5 N.º 2 (2022)
Electron heat conduction in the solar wind: transition from Spitzer-Härm to the collisionless limit
Creators: name: Bale, S. D.
name: Pulupa, M.
name: Salem, C.
name: Chen, C. H. K.
name: Quataert, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We use a statistically significant set of measurements to show that the field-aligned electron heat flux $q_\parallel$ in the solar wind at 1 AU is consistent with the Spitzer-Härm collisional heat flux $q_{sh}$ for temperature gradient scales larger than a few mean free paths $L_T \gtrsim 3.5 ~λ_{fp}$. This represents about 65% of the measured data and corresponds primarily to high $β$, weakly collisional plasma ('slow solar wind'). In the more collisionless regime $λ_{fp}/L_T \gtrsim 0.28$, the electron heat flux is limited to $q_\parallel/q_0 \sim 0.3$, independent of mean free path, where $q_0$ is the 'free-streaming' value; the measured $q_\parallel$ does not achieve the full $q_0$. This constraint $q_\parallel/q_0 \sim 0.3$ might be attributed to wave-particle interactions, an interplanetary electric potential, or inherent flux limitation. We also show a $β_e$ dependence to these results that is consistent with a local radial electron temperature profile $T_e \sim r^{-α}$ that is a function of the thermal electron beta $α= α(β_e)$ and that the $β$ dependence of the collisionless regulation constraint is not obviously consistent with a whistler heat flux instability. We discuss the results in a broader astrophysical context.
description: 6 pages, 3 figures, accepted for ApJ Letters
Probing Curvature Effects in the Fermi GRB 110920
Creators: name: Shenoy, A.
name: Sonbas, E.
name: Dermer, C.
name: Maximon, L. C.
name: Dhuga, K. S.
name: Bhat, P. N.
name: Hakkila, J.
name: Parke, W. C.
name: Maclachlan, G. A.
name: Ukwatta, T. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Curvature effects in Gamma-ray bursts (GRBs) have long been a source of considerable interest. In a collimated relativistic GRB jet, photons that are off-axis relative to the observer arrive at later times than on-axis photons and are also expected to be spectrally softer. In this work, we invoke a relatively simple kinematic two-shell collision model for a uniform jet profile and compare its predictions to GRB prompt-emission data for observations that have been attributed to curvature effects such as the peak-flux--peak-frequency relation, i.e., the relation between the $ν$F$_ν$ flux and the spectral peak, E$_{pk}$ in the decay phase of a GRB pulse, and spectral lags. In addition, we explore the behavior of pulse widths with energy. We present the case of the single-pulse Fermi GRB 110920, as a test for the predictions of the model against observations.
description: 8 pages, 11 figures, Accepted for publication in ApJ
Mass function and assembly of dark halos: an approach to inventory isolated overdense regions in random fields
Creators: name: Firmani, C.
name: Avila-Reese, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In order to attain a statistical description of the evolution of cosmic density fluctuations in agreement with results from the numerical simulations, we introduce a probability conditional formalism (CF) based on an inventory of isolated overdense regions in a density random field. This formalism is a useful tool for describing at the same time the mass function (MF) of dark haloes, their mass aggregation histories (MAHs) and merging rates (MRs). The CF focuses on virialized regions in a self-consistent way rather than in mass elements, and it offers an economical description for a variety of random fields. Within the framework of the CF, we confirm that, for a Gaussian field, it is not possible to reproduce at the same time the MF, MAH, and MR of haloes, both for a constant and moving barrier. Then, we develop an inductive method for constraining the cumulative conditional probability from a given halo MF description, and thus, using the CF, we calculate the halo MAHs and MRs. By applying this method to the MF measured in numerical simulations by Tinker et al. 2008, we find that a reasonable solution, justified by a mass conservation argument, is obtained if ones introduce a rescaling -increment by ~30% - of the virial mass used in simulations and a (slight) deviation from Gaussianity. Thus, both the MAH and MR obtained by a Monte Carlo merger tree agree now with the predictions of numerical simulations. We discuss on the necessity of rescaling the virial mass in simulations when comparing with analytical approaches on the ground of the matter not accounted as part of the halos and the halo mass limit due to numerical. Our analysis supports the presence of a diffuse dark matter component that is not taken into account in the measured halo MFs inasmuch as it is not part of the collapsed structures.
description: 13 pages, 10 figures. Few typos and references corrected. Published in MNRAS
Extra relativistic degrees of freedom without extra particles using Planck data
Creators: name: Mastache, Jorge
name: de la Macorra, Axel
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A recent number of analysis of cosmological data have shown indications for the presence of extra radiation beyond the standard model at equality and nucleosynthesis epoch, which has been usually interpreted as an effective number of neutrinos, Neff > 3.046. In this work we establish the theoretical basis for a particle physics-motivated model (Bound Dark Matter, BDM) which explain the need of extra radiation. The BDM model describes dark matter particles which are relativistic at a scale below a < ac, these particles acquire mass with an initial velocity, vc, at scales a > ac due to non-perturbative methods, as protons and neutrons do, this process is described by a time dependent equation of state, w_bdm(a). Owing to this behavior the amount of extra radiation change as a function of the scale factor, this entail that the extra relativistic degrees of freedom Nex may also vary as a function of the scale factor. This is favored by data at CMB and BBN epochs. We compute the range of values of the BDM model parameters, xc = ac*vc, that explain the values obtained for the 4He at BBN and Neff at equality. Combining different analysis we compute the value xc = 4.13x10^{-5} and vc = 0.37. We conclude that we can account for the apparent extra neutrino degrees of freedom Nex using a phase transition in the dark matter with a time dependent equation of state with no need for introducing extra relativistic particles.
description: 9 pages, 7 figures, 2 Tables
title: What's in the Pan
title: An Evaluation of Fragipan Evolution in Western Kentucky
titleType: Subtitle
Creators: name: Somerville, Hannah Leigh
Publisher: name: University of Kentucky Libraries
Year: 2021
Subjects: subject: FOS: Agricultural sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: The fragipan is a common diagnostic soil feature that does not follow a clear development path. Fragipans are found commonly throughout the southeastern US and cover 2.7 million acres in Kentucky alone. However prevalent, there is no currently accepted genesis theory for fragipans. In this study, we sought to better understand the formation of fragic features in Kentucky’s soils by evaluating fragipan characteristics across a sequence of pedons featuring varying degrees of fragipan development. We found that [Si/Al]Dithionite, [Si/(Si + Al)]Dithionite and SiDithionite concentration were all higher in well-developed fragipans, suggesting the involvement of an aluminosilicate binding phase with fragipan development.
description: © 2021 Hannah Leigh Somerville
Continuous THz emission from dipolaritons
Creators: name: Kristinsson, K.
name: Kyriienko, O.
name: Liew, T. C. H.
name: Shelykh, I. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We propose a scheme of continuous tunable THz emission based on dipolaritons --- mixtures of strongly interacting cavity photons and direct excitons, where the latter are coupled to indirect excitons via tunnelling. We investigate the property of multistability under continuous wave (CW) pumping, and the stability of the solutions. We establish the conditions of parametric instability, giving rise to oscillations in density between the direct exciton and indirect modes under CW pumping. In this way we achieve continuous and tunable emission in the THz range in a compact single-crystal device. We show that the emission frequency can be tuned in a certain range by varying an applied electric field and pumping conditions. Finally, we demonstrate the dynamic switching between different phases in our system, allowing rapid control of THz radiation.
description: Main article 6 pages and 5 figures, two appendices 8 pages and 2 figures
Standing on the shoulders of giants - Hands on Software Design Patterns
Creators: name: Linxweiler, Jan
name: Peters, Sören
Publisher: name: Zenodo
Year: 2021
Subjects: RSE, Research Software Engineering, Design Patterns, SOLID Principles, Design Principles, OOP

description: Scientific Software Engineering Workshop at the TRR 295 Fall School in Hofgeismar (20 – 22 Oct 2021) - Day 2
Untersuchungen aus dem botanischen Labor am RGZM. II. Getreidekorn-Abdrücke als Schmuckelemente in neolithischer Keramik?
Creators: name: Hopf, Maria
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Neolithikum; Linearbandkeramik; Deutschland; Nordrhein-Westfalen; Bochum-Herne; Keramikgefäße; Getreide

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 12 (1965)
Zur Belegung latènezeitlicher Friedhöfe der Schweiz
Creators: name: Schaaff, Ulrich
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Eisenzeit; Latènezeit; Mitteleuropa; Schweiz; Gräberfelder; Chronologie; Horizontalstratigraphie

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 13 (1966)
Faegheh Shirazi Interview
Creators: name: Institute For Diversity & Civic Life
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: Religions Texas
Texas
Austin
Baby Boomer
Muslim
Shia
Abadan
Brand Islam
Culture
Culture shock
Education
Educators
Hijab
Immigrants
Interior design
Iran
Iranian-Americans
Islam
Islamic Republic of Iran
Islamophobia
Kansas State University
Language barriers
Middle Eastern studies
Muslim women's identities
Nowruz
Ohio State University
Pluralism
Rituals
Textiles
The University of Texas at Austin
The Veil Unveiled
Velvet Jihad
Women's and gender studies

description: This interview is with Faegheh Shirazi, a professor in the Middle Eastern Studies Department at UT Austin. Faegheh talks about her family life and education in Iran before the Iranian Revolution, including her early exposure to education and religion prior to moving to the United States for college. She tells the story of her higher education and how she ultimately found her scholarly passions for textile history and Muslim women’s studies. Faegheh also discusses the areas in which she teaches and publishes, such as understanding the hijab in intersectional contexts and Muslim women’s lifestyles and leadership.
Li$_2$RhO$_3$: A spin-glassy relativistic Mott insulator
Creators: name: Luo, Yongkang
name: Cao, Chao
name: Si, Bingqi
name: Li, Yuke
name: Bao, Jinke
name: Guo, Hanjie
name: Yang, Xiaojun
name: Shen, Chenyi
name: Feng, Chunmu
name: Dai, Jianhui
name: Cao, Guanghan
name: Xu, Zhu-an
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by the rich interplay among electronic correlation, spin-orbit coupling (SOC), crystal-field splitting, and geometric frustrations in the honeycomb-like lattice, we systematically investigated the electronic and magnetic properties of Li$_2$RhO$_3$. The material is semiconducting with a narrow band gap of $Δ\sim$78 meV, and its temperature dependence of resistivity conforms to 3D variable range hopping mechanism. No long-range magnetic ordering was found down to 0.5 K, due to the geometric frustrations. Instead, single atomic spin-glass behavior below the spin-freezing temperature ($\sim$6 K) was observed and its spin dynamics obeys the universal critical slowing down scaling law. First principle calculations suggested it to be a relativistic Mott insulator mediated by both electronic correlation and SOC. With moderate strength of electronic correlation and SOC, our results shed new light to the research of Heisenberg-Kitaev model in realistic materials.
description: 6 pages, 5 figures, 1 table
Zu den römischen Ringknaufschwertern und Dosenortbändern in Bayern
Creators: name: Kellner, Hans-Jörg
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Römerzeit; Deutschland; Bayern; Waffen; Ringknaufschwerter; Terra Sigillata

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 13 (1966)
Fermi surface topology and de Hass-van Alphen orbits in PuIn$_{\rm 3}$ and PuSn$_{\rm 3}$ compounds
Creators: name: Wang, C. -C. Joseph
name: Jones, M. D.
name: Zhu, Jian-Xin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Since the recent discovery of plutonium-based superconductors such as PuCoIn$_{\rm 5}$, systematic studies of the electronic properties for plutonium compounds are providing insight into the itinerancy-localization crossover of Pu 5$f$ electrons. We are particularly interested in understanding the Fermi surface properties of PuIn$_{3}$ compound, which serves as the building block for the PuCoIn$_{\rm 5}$ superconductor. Motivated by the first observation of quantum oscillation and renewed interest in the de-Hass van-Alphen (dHvA) measurements on PuIn$_{\rm 3}$, we study the Fermi surface (FS) topology and the band dispersion in both paramagnetic and antiferromagnetic state of PuIn$_{\rm 3}$, based on density functional theory with generalized gradient approximation. We compare the results with its isostructural paramagnetic compound PuSn$_{\rm 3}$. We show the detailed Fermi surfaces of compounds PuIn$_{\rm 3}$ and PuSn$_{\rm 3}$ and conclude that the FS topology of an antiferromagnetic PuIn$_3$ agrees better with dHvA measurements. In addition, we show the magnetization of the antiferromagnetic order can alter the angle dependence and values of the effective mass for the dHvA orbits. We point out the accurate determination of the magnetic order orientation with respect to the crystal orientation is crucial to advance the understanding of the electronic structures of the PuIn$_{\rm 3}$ compound.
description: 13 pages, 26 figures
Measurement of associated production of vector bosons and top quark-antiquark pairs at sqrt(s) = 7 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The first measurement of vector-boson production associated with a top quark-antiquark pair in proton-proton collisions at sqrt(s) = 7 TeV is presented. The results are based on a data set corresponding to an integrated luminosity of 5.0 inverse femtobarms, recorded by the CMS detector at the LHC in 2011. The measurement is performed in two independent channels through a trilepton analysis of t t-bar Z events and a same-sign dilepton analysis of t t-bar V (V = W or Z) events. In the trilepton channel a direct measurement of the t t-bar Z cross section sigma(t t-bar Z) = 0.28 +0.14/-0.11 (stat) +0.06/-0.03 (syst) pb is obtained. In the dilepton channel a measurement of the t t-bar V cross section yields sigma(t t-bar V) = 0.43 +0.17/-0.15 (stat) +0.09/-0.07 (syst) pb. These measurements have a significance, respectively, of 3.3 and 3.0 standard deviations from the background hypotheses and are compatible, within uncertainties, with the corresponding next-to-leading order predictions of 0.137 +0.012/-0.016 and 0.306 +0.031/-0.053 pb.
description: Replaced with published version. Added journal reference and DOI
Identification of discontinuities in plasma plume evolution
Creators: name: Gojani, Ardian B.
name: Kokaj, Jahja
name: Obayashi, Shigeru
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The ejection of material during laser ablation gives rise to the development of discontinuities in the ambient gas. Several of these discontinuities are observed and characterized, including externally and internally propagating shock waves, contact surface, and the ionization front. Qualitative experimental observations and analysis of these discontinuities is presented. Results from shadowgraphy enabled determination of an irradiance threshold between two different ablation mechanisms, and determination of several stages of plasma plume evolution. Consideration of the refractive index as a dynamic sum of the contributions from gas and electrons led to separate identification of ionization front from the contact surface. Furthermore, ionization front was observed to lead the shock wave at the earlier stage of the ablation.
description: Applied Physics B: Lasers and Optics 2013
Real-time vector field tracking with a cold-atom magnetometer
Creators: name: Behbood, Naeimeh
name: Ciurana, Ferran Martin
name: Colangelo, Giorgio
name: Napolitano, Mario
name: Mitchell, Morgan W.
name: Sewell, Robert J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a fast three-axis optical magnetometer using cold, optically-trapped $^{87}$Rb gas as a sensor. By near-resonant Faraday rotation we record the free-induction decay following optical pumping along two orthogonal axes to obtain the three field components and one gradient component. A single measurement achieves shot-noise limited sub-nT sensitivity in 1 ms, with transverse spatial resolution of $\sim$ 20 $μ$m. We make a detailed analysis of the shot-noise-limited sensitivity.
description: 4 pages, 3 figures
Scientific software development is not a Jenga game
Creators: name: Linxweiler, Jan
name: Peters, Sören
Publisher: name: Zenodo
Year: 2021
Subjects: RSE, Research Software Engineering, Design Patterns, SOLID Principles, Design Principles, OOP

description: Scientific Software Engineering Workshop at the TRR 295 Fall School in Hofgeismar (20 – 22 Oct 2021) - Day 1
Understanding electron behavior in strained graphene as a reciprocal space distortion
Creators: name: Oliva-Leyva, M.
name: Naumis, G. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The behavior of electrons in strained graphene is usually described using effective pseudomagnetic fields in a Dirac equation. Here we consider the particular case of a spatially constant strain. Our results indicate that lattice corrections are easily understood using a strained reciprocal space, in which the whole energy dispersion is simply shifted and deformed. This leads to a directional dependent Fermi velocity without producing pseudomagnetic fields. The corrections due to atomic wavefunction overlap changes tend to compensate such effects. Also, the analytical expressions for the shift of the Dirac points as well as the corresponding Dirac equation are found. In view of the former results, we discuss the range of applicability of the usual approach of considering pseudomagnetic fields in a Dirac equation derived from the old Dirac points of the unstrained lattice. Such considerations are important if a comparison is desired with experiments or numerical simulations.
description: Revised version
Ein Pressblechmodel aus dem Römischen Museum Augsburg
Creators: name: Ulbert, Günter
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Römerzeit; 4. Jh. n.Chr.; Deutschland; Bayern; Fibeln; Pressblechscheibenfibeln; Technologie

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 13 (1966)
Kolsky Poll # 1986-SIST2: Sistematico 2--Economic Policy/Economic Situation/Politics
Creators: name: Estudio Hugo I. Kolsky
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: Economic policy and economic situation (22); foreign debt (2); privatization of public companies (3); foreign investments in Argentina (4); perception of Argentinean businessmen (6); perception of unions and union membership (6); voting intentions (4) vote in 1983 and 1985 (2); divorce (2).
P. V. Glob, Die Schläfer im Moor
Creators: name: Hundt, Hans-Jürgen
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Buchbesprechung

description: Rezension zu: P. V. Glob: Die Schläfer im Moor, Winkler-Verlag München (o. J.). Übersetzung aus dem Dänischen. Titel der Originalausgabe: Mosefolket. Gyldendal Kopenhagen (1965). 173 S., 80 Abb., 1 Karte.
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 13 (1966)
Die römischen Niederlassungen auf württembergischem Boden
Creators: name: Herzog, Ernst Von
Publisher: name: Bonner Jahrbücher
Year: 2017

description: [nicht vorhanden / not available]
description: Bonner Jahrbücher, Bd. 59 (1876): Jahrbücher des Vereins von Alterthumsfreunden im Rheinlande
Factorization of integer-valued polynomials with square-free denominator
Creators: name: Peruginelli, Giulio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 13B25, 13F20, 13P05

description: We describe an algorithm to compute the essentially different factorizations of a given image primitive integer-valued polynomial $f(X)=g(X)/d\in\Q[X]$, where $g\in\Z[X]$ and $d\in\N$ is square-free, assuming that the factorization of $g(X)$ in $\Z[X]$ and $d$ in $\Z$ is known. We translate this problem into a combinatorial one.
description: accepted by Communications in Algebra. revised edition: minor changes in the organization of the sections of the paper. (no. pages: 16)
Thermodynamics of rotating charged dilaton black holes in an external magnetic field
Creators: name: Yazadjiev, Stoytcho S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the present paper we study the long-standing problem for the thermodynamics of magnetized dilaton black holes. For this purpose we construct an exact solution describing a rotating charged dilaton black hole immersed in an external magnetic field and discuss its basic properties. We derive a Smarr-like relation and the thermodynamics first law for these magnetized black holes. The novelty in the thermodynamics of the magnetized black holes is the appearance of new terms proportional to the magnetic momentum of the black holes in the Smarr-like relation and the first law.
description: 11 pages. arXiv admin note: text overlap with arXiv:1302.5530;v2 typos corrected
title: Zuckerersatz Allulose: Für eine gesundheitliche Bewertung als Lebensmittelzutat sind weitere Daten erforderlich: Stellungnahme Nr. 001/2020 des BfR vom 8. Januar 2019
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2020
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2020, no. 001
Nonlinear dynamics of antihydrogen in magnetostatic traps: implications for gravitational measurements
Creators: name: Zhmoginov, Andrey
name: Charman, Andrew
name: Fajans, Joel
name: Wurtele, Jonathan
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The influence of gravity on antihydrogen dynamics in magnetic traps is studied. The advantages and disadvantages of various techniques for measuring the ratio of the gravitational mass to the inertial mass of antihydrogen are discussed. Theoretical considerations and numerical simulations indicate that stochasticity may be especially important for some experimental techniques in vertically oriented traps.
description: 12 pages, 9 figures
title: Bewertungsbericht zu den Ergebnissen des nationalen Rückstandskontrollplans und des Einfuhrüberwachungsplans 2017: Stellungnahme Nr. 002/2020 des BfR vom 9. Januar 2020
Creators: name: Bundesinstitut Für Risikobewertung
Publisher: name: Bundesbehörden und Einrichtungen im Geschäftsbereich des Bundesministeriums für Ernährung und Landwirtschaft (BMEL)
Year: 2020
Subjects: subject: 000

description: BfR-Stellungnahmen, vol. 2020, no. 002
Jochen Martin, Bedingungen menschlichen Handelns in der Antike
Creators: name: Walter, Uwe
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Jochen Martin, Bedingungen menschlichen Handelns in der Antike. Gesammelte Beiträge zur Historischen Anthropologie. Herausgegeben von Winfried Schmitz. Verlag Franz Steiner, Stuttgart 2009. 649 Seiten
description: Bonner Jahrbücher, Bd. 208.2008(2010): Bonner Jahrbücher
New Massive Supergravity and Auxiliary Fields
Creators: name: Bergshoeff, Eric A.
name: Kovacevic, Marija
name: Parra, Lorena
name: Rosseel, Jan
name: Yin, Yihao
name: Zojer, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a supersymmetric formulation of linearized New Massive Gravity without introducing higher derivatives. Instead, we introduce supersymmetrically a set of bosonic and fermionic auxiliary fields which, upon elimination by their equations of motion, introduce fourth-order derivative terms for the metric and third-order derivative terms for the gravitino. Our construction requires an off-shell formulation of the three-dimensional supersymmetric massive Fierz-Pauli theory. We discuss the non-linear extension of our results.
description: 31 pages; v2: minor changes, added references/published version
Jakob Munk Højte (hrsg.), Mithridates VI and the Pontic Kingdom
Creators: name: Engels, David
Publisher: name: Bonner Jahrbücher
Year: 2017

description: Rezension zu: Jakob Munk Højte (hrsg.), Mithridates VI and the Pontic Kingdom. Black Sea Studies, Band 9. University Press, Aarhus 2009.375 Seiten mit zahlreichen Abbildungen
description: Bonner Jahrbücher, Bd. 208.2008(2010): Bonner Jahrbücher
Grabfunde von westmecklenburgischen Bestattungsplätzen der Eisenzeit
Creators: name: Behrends, Rolf-Heiner
name: Keiling, Horst
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Eisenzeit; Deutschland; Mecklenburg-Vorpommern; Grabfunde; Urnengräber

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 12 (1965)
Untersuchung von Öl-Funden aus römischen Brandgräbern
Creators: name: Seher, Artur
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Römerzeit; Deutschland; Rheinland-Pfalz; Morshausen; Glasgefäße; chemische Untersuchung; Gaschromatographie

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 12 (1965)
title: Safe Handling and Release Guidelines for Manta and Devil Rays (Mobulid species))
Creators: name: Carlson, John K. (John Keith)
name: Horn, Calusa S.
name: Creager, Shelby B.
Publisher: name: United States. National Marine Fisheries Service, Southeast Fisheries Science Center (U.S.), Panama City Laboratory
Year: 2019

description: NOAA Technical Memorandum NMFS-SEFSC-733
Le groupe de Brauer non ramifié sur un corps global de caractéristique positive (The unramified Brauer group over a global field of positive characteristic)
Creators: name: Arteche, Giancarlo Lucchini
Publisher: name: arXiv
Year: 2013
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F22, 14G25

description: En utilisant un théorème de Gabber sur les altérations, on démontre un résultat décrivant la partie de torsion première à $p$ du groupe de Brauer non ramifié d'une variété $V$ lisse et géométriquement intègre sur un corps global de caractéristique $p$ au moyen de l'évaluation des éléments de $\Br V$ sur ses points locaux. Using a theorem of Gabber on alterations, we prove a result describing the prime-to-$p$ torsion part of the unramified Brauer group of a smooth and geometrically integral variety $V$ over a global field of characteristic $p$ by evaluating the elements of $\Br V$ at its local points.
description: Text in French. Minor corrections suggested by the referee added
Lipkin's conservation law, Noether's theorem, and the relation to optical helicity
Creators: name: Philbin, T. G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A simple conserved quantity for electromagnetic fields in vacuum was discovered by Lipkin in 1964. In recent years this "zilch" has been used as a measure of the chirality of light. The conservation of optical zilch is here derived from a simple symmetry of the standard electromagnetic action. The symmetry transformation allows the identification of circularly polarized plane waves as zilch eigenstates. The same symmetry is present for electromagnetism in a homogeneous, dispersive medium, allowing the derivation of the zilch density and flux in such a medium. Optical helicity density and flux are also derived for a homogeneous, dispersive medium. For monochromatic beams in vacuum, optical zilch is proportional to optical helicity. This monochromatic zilch-helicity relation acquires a factor of the square of the phase index in a dispersive medium.
description: 7 pages
The massive end of the luminosity and stellar mass functions: Dependence on the fit to the light profile
Creators: name: Bernardi, M.
name: Meert, A.
name: Sheth, R. K.
name: Vikram, V.
name: Huertas-Company, M.
name: Mei, S.
name: Shankar, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In addition to the large systematic differences arising from assumptions about the stellar mass-to-light ratio, the massive end of the stellar mass function is rather sensitive to how one fits the light profiles of the most luminous galaxies. We quantify this by comparing the luminosity and stellar mass functions based on SDSS cmodel magnitudes, and PyMorph single-Sersic and Sersic-Exponential fits to the surface brightness profiles of galaxies in the SDSS. The PyMorph fits return more light, so that the predicted masses are larger than when cmodel magnitudes are used. As a result, the total stellar mass density at z~0.1 is about 1.2x larger than in our previous analysis of the SDSS. The differences are most pronounced at the massive end, where the measured number density of objects having M* > 6 x 10^{11} Msun is ~5x larger. Alternatively, at number densities of 10^{-6} Mpc^{-3}, the limiting stellar mass is 2x larger. The differences with respect to fits by other authors, typically based on Petrosian-like magnitudes, are even more dramatic, although some of these differences are due to sky-subtraction problems, and are sometimes masked by large differences in the assumed $M_*/L$ (even after scaling to the same IMF). Our results impact studies of the growth and assembly of stellar mass in galaxies, and of the relation between stellar and halo mass, so we provide simple analytic fits to these new luminosity and stellar mass functions and quantify how they depend on morphology, as well as the binned counts in electronic format.
description: 8 pages, 6 figures; accepted for publication in MNRAS. Electronic versions of Tables 2 and 3, which list the binned counts, are provided as "ancillary" files
Narrative Intervention for Children With Autism Spectrum Disorder (ASD) (Gillam et al., 2015)
Creators: name: Gillam, Sandra Laing
name: Hartzheim, Daphne
name: Studenka, Breanna
name: Simonsmeier, Vicki
name: Gillam, Ronald
Publisher: name: ASHA journals
Year: 2015
Subjects: subject: 170204 Linguistic Processes (incl. Speech Production and Comprehension)
subject: FOS: Psychology

description: Purpose This study was conducted to determine whether a narrative intervention program that targeted the use of mental state and causal language resulted in positive gains in narrative production for children with autism spectrum disorder (ASD).
Method Five children (2 girls and 3 boys) who had been diagnosed with ASD participated in the study. Children ranged in age from 8 to 12 years and were recruited through an autism clinic. Intervention was provided for two 50-min individual sessions per week for a total of 21–33 sessions (depending on the student). Children's spontaneous stories, collected weekly, were analyzed for overall story complexity, story structure, and the use of mental state and causal language. Following a multiple-baseline across-participants design, data were collected for lagged baseline and intervention phases over a 6-month period.
Results All of the children made gains on all 3 measures of narration after participating in the instruction, with clear changes in level for all 5 children and changes in trend for 4 of the 5 children. The gains were maintained after intervention was discontinued.
Conclusion The results demonstrate the efficacy of the 3-phase narrative instruction program for improving the fictional narration abilities of children with ASD.
Arbeitsversuche mit dem Pressblechmodel aus dem Römischen Museum Augsburg
Creators: name: Drescher, Hans
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Römerzeit; 4. Jh. n.Chr.; Deutschland; Bayern; Fibeln; Pressblechscheibenfibeln; Technologie

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 13 (1966)
Invariance of waveguide grating mirrors to lateral displacement phase shifts
Creators: name: Brown, Daniel
name: Friedrich, Daniel
name: Brückner, Frank
name: Carbone, Ludovico
name: Schnabel, Roman
name: Freise, Andreas
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a method to analyse the coupling of lateral displacements in nanoscale structures, in particular waveguide grating mirrors (WGM), into the phase of a reflected Gaussian beam using a finite-difference time-domain simulation. Such phase noise is of interest for using WGMs in high-precision interferometry. We show that WGMs do not couple lateral displacements into the phase of a reflected beam to a precision of 10^{-7} rad and that WGMs are therefore not subject to the same stringent alignment requirements as previously proposed layouts using diffraction gratings.
description: 3 Pages, 4 figures
Zur naturwissenschaftlichen Begründung des Begriffes der „Bernsteinstrassen“
Creators: name: Ankner, Dietrich
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Vor- und Frühgeschichte; Mitteleuropa; Bernstein; Analytik; Herkunftsbestimmung

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 13 (1966)