cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Observation of the Modification of Quantum Statistics of Plasmonic Systems
Creators: name: You, Chenglong
name: Hong, Mingyuan
name: Bhusal, Narayan
name: Chen, Jinnan
name: Quiroz-Juárez, Mario A.
name: Mostafavi, Fatemeh
name: Guo, Junpeng
name: De Leon, Israel
name: León-Montiel, Roberto de J.
name: Magaña-Loaiza, Omar S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: For almost two decades, it has been believed that the quantum statistical properties of bosons are preserved in plasmonic systems. This idea has been stimulated by experimental work reporting the possibility of preserving nonclassical correlations in light-matter interactions mediated by scattering among photons and plasmons. Furthermore, it has been assumed that similar dynamics underlies the conservation of the quantum fluctuations that define the nature of light sources. Here, we demonstrate that quantum statistics are not always preserved in plasmonic systems and report the first observation of their modification. Moreover, we show that multiparticle scattering effects induced by confined optical near fields can lead to the modification of the excitation mode of plasmonic systems. These observations are validated through the quantum theory of optical coherence for single- and multi-mode plasmonic systems. Our findings constitute a new paradigm in the understanding of the quantum properties of plasmonic systems and unveil new paths to perform exquisite control of quantum multiparticle systems.
description: 12 pages, 5 figures
Imaging X-ray sources at a finite distance in coded mask instruments
Creators: name: Donnarumma, I.
name: Pacciani, L.
name: Lapshov, I.
name: Evangelista, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a method we developed for the correction of the beam divergence in finite distance sources imaging through coded mask instruments. We discuss the defocusing artifacts induced by the finite distance showing two different approaches to remove such spurious effects. We applied our method to one-dimensional coded-mask systems, although it is also applicable to 2D systems as well. We provide a detailed mathematical description of the adopted method and of the systematics introduced in the reconstructed image (e. g. the fraction of source flux collected in the reconstructed peak counts). The accuracy of this method was tested by simulating point-like and extended sources at finite distance with the instrumental set-up of the SuperAGILE experiment, the one dimensional coded-mask X-ray imager on-board the AGILE mission. We obtained reconstructed images of good quality and high source location accuracy. Finally, we show the results obtained by applying this method to real data collected during the calibration campaign of SuperAGILE. Our method was demonstrated to be a powerful tool to investigate the imaging response of the experiment, particularly, the absorption due to the materials intercepting the line of sight of the instrument and the conversion between detector pixel and sky direction.
description: 25 pages, 8 figures published in Appl. Opt
Recursion and Sequentiality in Categories of Sheaves
Creators: name: Matache, Cristina
name: Moss, Sean
name: Staton, Sam
Publisher: name: arXiv
Year: 2021
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: Category Theory (math.CT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a fully abstract model of a call-by-value language with higher-order functions, recursion and natural numbers, as an exponential ideal in a topos. Our model is inspired by the fully abstract models of O'Hearn, Riecke and Sandholm, and Marz and Streicher. In contrast with semantics based on cpo's, we treat recursion as just one feature in a model built by combining a choice of modular components.
Deutsche Literatur im östlichen und südöstlichen Europa. Konzepte und Methoden der Geschichtsschreibung und Lexikographie.
Creators: name: Kuczyński, Krzysztof A.
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
The Grassmannian for Celestial Superamplitudes
Creators: name: Ferro, Livia
name: Moerman, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, scattering amplitudes in four-dimensional Minkowski spacetime have been interpreted as conformal correlation functions on the two-dimensional celestial sphere, the so-called celestial amplitudes. In this note we consider tree-level scattering amplitudes in $\mathcal{N}=4$ super Yang-Mills theory and present a Grassmannian formulation of their celestial counterparts. This result paves the way towards a geometric picture for celestial superamplitudes, in the spirit of positive geometries.
description: 11 pages
Three loop calculations and inclusive $V_{cb}$
Creators: name: Bordone, Marzia
name: Capdevila, Bernat
name: Gambino, Paolo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the impact of the recent $\mathcal{O}(α_s^3)$ calculations of the semileptonic width of the $b$ quark and of the relation between pole and kinetic heavy quark masses by Fael et al. on the inclusive determination of $|V_{cb}|$. The most notable effect is a reduction of the uncertainty. Our final result is $|V_{cb}|=42.16(51)\, 10^{-3}$.
description: 6 pages, 1 figure
Circuits and excitations to enable Brownian token-based computing with skyrmions
Creators: name: Brems, Maarten A.
name: Kläui, Mathias
name: Virnau, Peter
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Brownian computing exploits thermal motion of discrete signal carriers (tokens) for computations. In this paper we address two major challenges that hinder competitive realizations of circuits and application of Brownian token-based computing in actual devices for instance based on magnetic skyrmions. To overcome the problem that crossings generate for the fabrication of circuits, we design a crossing-free layout for a composite half-adder module. This layout greatly simplifies experimental implementations as wire crossings are effectively avoided. Additionally, our design is shorter to speed up computations compared to conventional designs. To address the key issue of slow computation based on thermal excitations, we propose to overlay artificial diffusion induced by an external excitation mechanism. For instance, if magnetic skyrmions are used as tokens, artificially induced diffusion by spin-orbit torques or other mechanisms increases the speed of computations by several orders of magnitude. Combined with conventional Brownian computing the latter could greatly enhance the application scenarios of token-based computing for instance for low power devices such as autonomous sensors with limited power that is harvested from the environment.
description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 119, 132405 (2021) and may be found at https://doi.org/10.1063/5.0063584
Inverse cascade anomalies in fourth-order Leith models
Creators: name: Thalabard, Simon
name: Medvedev, Sergey
name: Grebenev, Vladimir
name: Nazarenko, Sergey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We analyze a family of fourth-order non-linear diffusion models corresponding to local approximations of 4-wave kinetic equations of weak wave turbulence. We focus on a class of parameters for which a dual cascade behaviour is expected with an infrared finite-time singularity associated to inverse transfer of waveaction. This case is relevant for wave turbulence arising in the Nonlinear Schrodinger model and for the gravitational waves in the Einstein's vacuum field model. We show that inverse transfer is not described by a scaling of the constant-flux solution but has an anomalous scaling. We compute the anomalous exponents and analyze their origin using the theory of dynamical systems.
description: 33 pages, 7 figures
Stability Limits in Resonant Planetary Systems
Creators: name: Barnes, Rory
name: Greenberg, Richard
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The relationship between the boundaries for Hill and Lagrange stability in orbital element space is modified in the case of resonantly interacting planets. Hill stability requires the ordering of the planets to remain constant while Lagrange stability also requires all planets to remain bound to the central star. The Hill stability boundary is defined analytically, but no equations exist to define the Lagrange boundary, so we perform numerical experiments to estimate the location of this boundary. To explore the effect of resonances, we consider orbital element space near the conditions in the HD 82943 and 55 Cnc systems. Previous studies have shown that, for non-resonant systems, the two stability boundaries are nearly coincident. However the Hill stability formula are not applicable to resonant systems, and our investigation shows how the two boundaries diverge in the presence of a mean-motion resonance, while confirming that the Hill and Lagrange boundaries are similar otherwise. In resonance the region of stability is larger than the domain defined by the analytic formula for Hill stability. We find that nearly all known resonant interactions currently lie in this extra stable region, i.e. where the orbits would be unstable according to the non-resonant Hill stability formula. This result bears on the dynamical packing of planetary systems, showing how quantifying planetary systems' dynamical interactions (such as proximity to the Hill-stability boundary) provides new constraints on planet formation models.
description: 13 pages, 3 figures, 2 tables, accepted for publication in ApJ Letters. A version with full resolution figures is available at http://www.lpl.arizona.edu/~rory/research/xsp/resstab.pdf
Extremal rotating black holes, scalar perturbation and superradiant stability
Creators: name: Lin, Jia-Mao
name: Luo, Ming-Jian
name: Zheng, Zi-Han
name: Yin, Lei
name: Huang, Jia-Hui
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A (charged) rotating black hole may be unstable against a (charged) massive scalar field perturbation due to the existence of superradiance modes. The stability property depends on the parameters of the system. In this paper, the superradiant stable parameter space is studied for the four-dimensional extremal Kerr and Kerr-Newman black holes under massive and charged massive scalar perturbation. For the extremal Kerr case, it is found that when the angular frequency and proper mass of the scalar perturbation satisfy the inequality $ω \frac{\sqrt{3 k^2+2} }{ \sqrt{k^2+2} },~k=\frac{a}{M}$, the extremal Kerr-Newman black hole is superradiantly stable under charged massive scalar perturbation.
description: 7 pages,4 figures,references added
Consequences of Approximate $S_3$ Symmetry of the Neutrino Mass Matrix
Creators: name: Chen, Chien-Yi
name: Wolfenstein, L.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Assuming that the neutrino mass matrix is dominated by a term with the permutation symmetry $S_{\scriptscriptstyle 3}$ it is possible to explain neutrino data only if the masses are quasi-degenerate. A sub-dominant term with an approximate $μ-τ$ symmetry leads to an approximate tri-bimaximal form. Experimental consequences are discussed.
description: 7 pages, 2 figures, 1 table, RevTex
O`ZBEKISTONDA SOLIQ QARZINI UNDIRISH MEXANIZMINI TAKOMILLASHTIRISH YO'LLARI
Creators: name: Aripova, Iroda
Publisher: name: Zenodo
Year: 2025

description: Mazkur maqolada O‘zbekistonda soliq qarzini undirish tizimini takomillashtirish masalalari tahlil qilinadi. Soliq qarzlarini samarali boshqarish va undirish bo‘yicha xorijiy tajribalar o‘rganilib, ularni milliy qonunchilik va amaliyotga moslashtirish imkoniyatlari ko‘rib chiqiladi. Shuningdek, soliq qarzini kamaytirish va undirish samaradorligini oshirish uchun raqamli texnologiyalar, soliq monitoringi tizimlari va muqobil yechimlar tavsiya etiladi. Maqolada soliq majburiyatlarini bajarish bo‘yicha soliq to‘lovchilarning huquqiy madaniyatini oshirish hamda davlat va tadbirkorlar o‘rtasidagi hamkorlikni mustahkamlash masalalariga alohida e’tibor qaratiladi.
A predefined-time first-order exact differentiator based on time-varying gains
Creators: name: R., Aldana-López
name: D., Gómez-Gutiérrez
name: A., Trujillo M.
name: M., Navarro-Gutiérrez
name: J., Ruiz-León
name: M, Becerra H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Recently, a first-order differentiator based on time-varying gains was introduced in the literature, in its non recursive form, for a class of differentiable signals $y(t)$, satisfying $|\ddot{y}(t)|\leq L(t-t_0)$, for a known function $L(t-t_0)$, such that $\frac{1}{L(t-t_0)}\left|\frac{d {L}(t-t_0)}{dt}\right|\leq M$ with a known constant $M$. It has been shown that such differentiator is globally finite-time convergent. In this paper, we redesign such an algorithm, using time base generators (a class of time-varying gains), to obtain a differentiator algorithm for the same class of signals, with guaranteed convergence before a desired time, i.e., with fixed-time convergence with an a priori user-defined upper bound for the settling time. Thus, our approach can be applied for scenarios under time-constraints. We present numerical examples exposing the contribution with respect to state-of-the-art algorithms.
description: Please cite the publisher's version. For the publisher's version and full citation details see: https://doi.org/10.1002/rnc.5536. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
Hydrogen abstraction from metal surfaces: When electron-hole pair excitations strongly affect hot-atom recombination
Creators: name: Galparsoro, Oihana
name: Pétuya, Rémi
name: Busnengo, Fabio
name: Juaristi, Joseba Iñaki
name: Crespos, Cédric
name: Alducin, Maite
name: Larregaray, Pascal
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Using molecular dynamics simulations, we predict that the inclusion of nonadiabatic electronic excitations influences the dynamics of preadsorbed hydrogen abstraction from the W(110) surface by hydrogen scattering. The hot-atom recombination, which involves hyperthermal diffusion of the impinging atom on the surface, is significantly affected by the dissipation of energy mediated by electron-hole pair excitations at low coverage and low incidence energy. This issue is of importance as this abstraction mechanism is thought to largely contribute to molecular hydrogen formation from metal surfaces.
title: Pomegranate :
title: Guidelines for the Conduct of Tests for Distinctness, Uniformity and Stability.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: New Varieties of Plants
Pomegranate

description: The purpose of these guidelines (“Test Guidelines”) is to elaborate the principles contained in the General Introduction (document TG/1/3), and its associated TGP documents, into detailed practical guidance for the harmonized examination of distinctness, uniformity and stability (DUS) and, in particular, to identify appropriate characteristics for the examination of DUS and production of harmonized variety descriptions.
Nationale Forschungsdateninfrastruktur (NFDI) e. V. - Satzungsvorstellung
Creators: name: Sure-Vetter, York
name: Lübke, Eva
name: Kraft, Sophie
name: Seitz-Moskaliuk, Hendrik
Publisher: name: Zenodo
Year: 2021
Subjects: Nationale Forschungsdateninfrastruktur
NFDI
Vereinssatzung

description: Diese Präsentation wurde zur Vorstellung der Satzung des Nationale Forschungsdateninfrastruktur (NFDI) e.V. am 10.03.2021 bzw. am 17.11.2021 gehalten. Die Folien dienen zur Schaffung eines Überblicks über die Vereinsorgane und die Vereinsstruktur. Maßgeblich ist ausschließlich die jeweils aktuell gültige Fassung der Vereinssatzung.
First detection of CO in a high-redshift DLA
Creators: name: Srianand, R.
name: Noterdaeme, P.
name: Ledoux, C.
name: Petitjean, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first detection of carbon monoxide (CO) in a damped Lyman-alpha system (DLA) at z_abs =2.41837 toward SDSS J143912.04+111740.5. We also detected H_2 and HD molecules. The measured total column densities (in log units) of H I, H_2, and CO are 20.10\pm0.10, 19.38\pm0.10, and 13.89\pm0.02, respectively. The molecular fraction, f = 2N(H_2)/(N(HI)+2N(H_2)) = 0.27^{+0.10}_{-0.08}, is the highest among all known DLAs. The abundances relative to solar of S, Zn, Si, and Fe are -0.03\pm0.12, +0.16\pm0.11, -0.86\pm0.11, and -1.32\pm0.11, respectively, indicating a high metal enrichment and a depletion pattern onto dust-grains similar to the cold ISM of our Galaxy. The measured {N(CO)/N(H_2) = 3x10^{-6}} is much less than the conventional CO/H_2 ratio used to convert the CO emission into gaseous mass but is consistent with what is measured along translucent sightlines in the Galaxy. The CO rotational excitation temperatures are higher than those measured in our Galactic ISM for similar kinetic temperature and density. Using the C I fine structure absorption lines, we show that this is a consequence of the excitation being dominated by radiative pumping by the cosmic microwave background radiation (CMBR). From the CO excitation temperatures, we derive T_CMBR = 9.15 \pm 0.72 K, while 9.315 \pm 0.007 K is expected from the hot big-bang theory. This is the most precise high-redshift measurement of T_CMBR and the first confirmation of the theory using molecular transitions at high redshift.
description: To appear in A&A letters
Ivan Jakubec, Schlupflöcher im „Eisernen Vorhang“. Tschechoslowakisch-deutsche Verkehrspolitik im Kalten Krieg. Die Eisenbahn und Elbeschiffahrt 1945-1989
Creators: name: Boyer, Christoph
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2008

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 57 Nr. 1 (2008): Freiheitskonzepte im östlichen Europa des Mittelalters und der Frühneuzeit - Klaus Zernack zum 75. Geburtstag
VolletFilho_et_al Acta Cir Bras 2022 Supporting Information
Creators: name: Vollet-Filho, José Dirceu
name: Ferreira-Strixino, Juliana
name: Correa, Rodrigo Borges
name: Vanderlei Salvador Bagnato
name: De Castro E Silva Júnior, Orlando
name: Kurachi, Cristina
Publisher: name: Zenodo
Year: 2022
Subjects: Transplantation, Liver, Monitoring, Clinical, Fluorescence

description: This is supporting information including additional data and further discussion on the manuscript "" by Vollet-Filho et al., accepted for publishing in Acta Cirurgica Brasileira in October, 2022.

 Purpose: Fluorescence spectroscopy techniques have been investigated aiming to reduce the invasiveness of methods for investigation of tissue. In transplantation procedures, it may offer the possibility of a complementary technique for the monitoring of liver grafts’ conditions prior to and during the transplantation procedure stages involving cold perfusion. The objective of this study was to evaluate fluorescence spectroscopy under violet light excitation (408 nm) for the monitoring of clinical hypothermic liver transplantation procedures. Methods: Organ grafts were monitored from before the removal of the donor’s body to 1 h after the implant into the receptor’s body. Fluorescence spectroscopy was assessed over five stages within these transplant stages. Results: The study provided evidence of a correlation between fluorescence information collected during liver grafts transplantation and the survival of patients. Conclusion: Fluorescence spectroscopy can become a tool to monitor transplantation grafts, providing objective information for the final decision of surgeons to use organs.

 Funded by:
 - Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) - Centro de Pesquisa, Inovação e Difusão/Centro de Pesquisas em Óptica e Fotônica (Grants No.s #2013/07276-1 and No. #98/14270-8)
 - Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) - Instituto Nacional de Ciência e Tecnologia/Instituto Nacional de Fotônica INCT/INOF program (Grant No. #573587/2008-6)
Influence of surface band bending on a narrow band gap semiconductor: Tunneling atomic force studies of graphite with Bernal and rhombohedral stacking orders
Creators: name: Ariskina, Regina
name: Schnedler, Michael
name: Esquinazi, Pablo D.
name: Champi, Ana
name: Stiller, Markus
name: Hergert, Wolfram
name: Dunin-Borkowski, R. E.
name: Ebert, Philipp
name: Venus, Tom
name: Estrela-Lopis, Irina
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Tunneling atomic force microscopy (TUNA) was used at ambient conditions to measure the current-voltage ($I$-$V$) characteristics at clean surfaces of highly oriented graphite samples with Bernal and rhombohedral stacking orders. The characteristic curves measured on Bernal-stacked graphite surfaces can be understood with an ordinary self-consistent semiconductor modeling and quantum mechanical tunneling current derivations. We show that the absence of a voltage region without measurable current in the $I$-$V$ spectra is not a proof of the lack of an energy band gap. It can be induced by a surface band bending due to a finite contact potential between tip and sample surface. Taking this into account in the model, we succeed to obtain a quantitative agreement between simulated and measured tunnel spectra for band gaps $(12 \ldots 37)$\,meV, in agreement to those extracted from the exponential temperature decrease of the longitudinal resistance measured in graphite samples with Bernal stacking order. In contrast, the surface of relatively thick graphite samples with rhombohedral stacking reveals the existence of a maximum in the first derivative $dI/dV$, a behavior compatible with the existence of a flat band. The characteristics of this maximum are comparable to those obtained at low temperatures with similar techniques.
description: 12 pages, 10 figures
Measurement of Inclusive Jet Production in Deep-Inelastic Scattering at High Q^2 and Determination of the Strong Coupling
Creators: name: H1 Collaboration
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Inclusive jet production is studied in neutral current deep-inelastic positron-proton scattering at large four momentum transfer squared Q^2>150 GeV^2 with the H1 detector at HERA. Single and double differential inclusive jet cross sections are measured as a function of Q^2 and of the transverse energy E_T of the jets in the Breit frame. The measurements are found to be well described by calculations at next-to-leading order in perturbative QCD. The running of the strong coupling is demonstrated and the value of alpha_s(M_Z) is determined. The ratio of the inclusive jet cross section to the inclusive neutral current cross section is also measured and used to extract a precise value for alpha_s(M_Z)=0.1193+/-0.0014(exp.)^{+0.0047}_{-0.0030}(th.)+/-0.0016(pdf).
description: 21 pages, 7 figures, submitted to Phys. Lett. B
First-order condensation transition in the position distribution of a run-and-tumble particle in one dimension
Creators: name: Mori, Francesco
name: Gradenigo, Giacomo
name: Majumdar, Satya N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider a single run-and-tumble particle (RTP) moving in one dimension. We assume that the velocity of the particle is drawn independently at each tumbling from a zero-mean Gaussian distribution and that the run times are exponentially distributed. We investigate the probability distribution $P(X,N)$ of the position $X$ of the particle after $N$ runs, with $N\gg 1$. We show that in the regime $ X \sim N^{3/4}$ the distribution $P(X,N)$ has a large deviation form with a rate function characterized by a discontinuous derivative at the critical value $X=X_c>0$. The same is true for $X=-X_c$ due to the symmetry of $P(X,N)$. We show that this singularity corresponds to a first-order condensation transition: for $X>X_c$ a single large jump dominates the RTP trajectory. We consider the participation ratio of the single-run displacements as the order parameter of the system, showing that this quantity is discontinuous at $X=X_c$. Our results are supported by numerical simulations performed with a constrained Markov chain Monte Carlo algorithm.
description: 24 pages, 10 figures
Impact of background effects on the inclusive $V_{cb}$ determination
Creators: name: Mannel, Thomas
name: Rahimi, Muslem
name: Vos, K. Keri
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The determination of the CKM element $V_{cb}$ from inclusive semileptonic $b\to c \ell \barν$ decays has reached a high precision thanks to a combination of theoretical and experimental efforts. Aiming towards even higher precision, we discuss two processes that contaminate the inclusive $V_{cb}$ determination; the $b\to u$ background and the contribution of the tauonic mode: $b\to c(τ\to μν\barν)\barν$. Both of these contributions are dealt with at the experimental side, using Monte-Carlo methods and momentum cuts. However, these contributions can be calculated with high precision within the Heavy-Quark Expansion. In this note, we calculate the theoretical predictions for these two processes. The $b\to u$ results are compared with generator-level Monte-Carlo results used at Belle and Belle II. We have good agreement between theory and Monte-Carlo for lepton energy moments, but less for hadronic mass moments. Based on our results the uncertainties due to these backgrounds processes can basically be eliminated by properly including them into the analyses.
description: 7 figures
Minnesota Applied Economist 739, Fall 2021
Creators: name: Homans, Frances
name: Homans, Frances
Publisher: name: Unknown
Year: 2021
Subjects: Teaching/Communication/Extension/Profession

description: In this issue: Notes from the Department Head; Giving Back: An Interview with Professor Emerita Jean Kinsey; Implications of Cow Nutrition on Whole-Farm Profitability of Minnesota Dairy Farms by Alex Gambonini; Research Spotlight: Sunghun Lim; Economic Mobility and Educational Attainment in Immigrant and African American Communities: Besufekad Alemu; Remembering Jason Beddow; Professor Emeritus: Jeff Apland.
Heinke M. Kalinke, Die Frauen aus Zülz/Biała. Lebensgeschichten dies- und jenseits der deutsch-polnischen Grenze (1920—1995)
Creators: name: Bönisch-Brednich, Brigitte
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
Gravitational Radiation from Accelerating Jets
Creators: name: Leiderschneider, Elly
name: Piran, Tsvi
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Non-spherical rapid acceleration of mass (or energy) to a relativistic velocity is a natural source of gravitational radiation. Such conditions arise in both long and short gamma-ray bursts whose central engine ejects relativistic jets. The resulting gravitational wave signal is of a memory type, rising to a finite level (of order 4 G E/r) over a duration that corresponds to the longer of either the injection time and the acceleration time of the jet. We explore the properties of such signals and their potential detectability. Unfortunately, the expected signals are below the frequency band of Advanced LIGO-Virgo-Kagra, and above LISA. However, they fall within the range of the planned BBO and DECIGO. While current sensitivity is marginal for the detection of jet gravitational wave signals from GRBs, hidden relativistic jets that exist within some core collapse SNe could be detected. Such a detection would reveal the acceleration mechanism and the activity of the central engine, which cannot be explored directly in any other way
description: Accepted for publication in Phys. Rev. D
Thermalisation by a boson bath in a pure state
Creators: name: Camalet, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a quantum system weakly coupled to a large heat bath of harmonic oscillators. It is well known that such a boson bath initially at thermal equilibrium thermalises the system. We show that assuming a priori an equilibrium state is not necessary to obtain the thermalisation of the system. We determine the complete Schrödinger time evolution of the subsystem of interest for an initial pure product state of the composite system consisting of the considered system and the bath. We find that the system relaxes into canonical equilibrium for almost all initial pure bath states of macroscopically well-defined energy. The temperature of the system asymptotic thermal state is determined by the energy of the initial bath state as the corresponding microcanonical temperature. Moreover, the time evolution of the system is identical to the one obtained assuming that the boson bath is initially at thermal equilibrium with this temperature. A significant part of our approach is applicable to other baths and we identify the bath features which are requisite for the thermalisation studied.
Order-Invariant MSO is Stronger than Counting MSO in the Finite
Creators: name: Ganzow, Tobias
name: Rubin, Sasha
Publisher: name: arXiv
Year: 2007
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences
subject: F.4.1

description: We compare the expressiveness of two extensions of monadic second-order logic (MSO) over the class of finite structures. The first, counting monadic second-order logic (CMSO), extends MSO with first-order modulo-counting quantifiers, allowing the expression of queries like ``the number of elements in the structure is even''. The second extension allows the use of an additional binary predicate, not contained in the signature of the queried structure, that must be interpreted as an arbitrary linear order on its universe, obtaining order-invariant MSO. While it is straightforward that every CMSO formula can be translated into an equivalent order-invariant MSO formula, the converse had not yet been settled. Courcelle showed that for restricted classes of structures both order-invariant MSO and CMSO are equally expressive, but conjectured that, in general, order-invariant MSO is stronger than CMSO. We affirm this conjecture by presenting a class of structures that is order-invariantly definable in MSO but not definable in CMSO.
description: Revised version contributed to STACS 2008
Die „Volksdeutschen“ in Polen, Frankreich, Ungarn und der Tschechoslowakei. Mythos und Realität
Creators: name: Lemberg, Hans
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2008

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 57 Nr. 1 (2008): Freiheitskonzepte im östlichen Europa des Mittelalters und der Frühneuzeit - Klaus Zernack zum 75. Geburtstag
Subtraction method of computing QCD jet cross sections at NNLO accuracy
Creators: name: Trocsanyi, Zoltan
name: Somogyi, Gabor
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a general subtraction method for computing radiative corrections to QCD jet cross sections at next-to-next-to-leading order accuracy. The steps needed to set up this subtraction scheme are the same as those used in next-to-leading order computations. However, all steps need non-trivial modifications, which we implement such that that those can be defined at any order in perturbation theory. We give a status report of the implementation of the method to computing jet cross sections in electron-positron annihilation at the next-to-next-to-leading order accuracy.
description: 6 pages, talk given at the conference "Loops and Legs in Quantum Field Theory", Sondershausen, April 2008
Planetary nebulae with Wolf-Rayet-type central stars -- II. Dissecting the compact planetary nebula M2-31 with GTC MEGARA
Creators: name: Rechy-García, J. S.
name: Toalá, J. A.
name: Cazzoli, S.
name: Guerrero, M. A.
name: Sabin, L.
name: Gómez-González, V. M. A.
name: Ramos-Larios, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a comprehensive analysis of the compact planetary nebula M2-31 investigating its spectral properties, spatio-kinematical structure and chemical composition using GTC MEGARA integral field spectroscopic observations and NOT ALFOSC medium-resolution spectra and narrow-band images. The GTC MEGARA high-dispersion observations have remarkable tomographic capabilities, producing an unprecedented view of the morphology and kinematics of M2-31 that discloses a fast spectroscopic bipolar outflow along position angles 50$^\circ$ and 230$^\circ$, an extended shell and a toroidal structure or waist surrounding the central star perpendicularly aligned with the fast outflows. These observations also show that the C II emission is confined in the central region and enclosed by the [N II] emission. This is the first time that the spatial segregation revealed by a 2D map of the C II line implies the presence of multiple plasma components. The deep NOT ALFOSC observations allowed us to detect broad WR features from the central star of M2-31, including previously undetected broad O VI lines that suggest a reclassification as a [WO4]-type star.
description: 12 pages, 8 figures, 3 tables; accepted to MNRAS
Higher angular momentum pairings in interorbital shadowed-triplet superconductors: Application to Sr$_{2}$RuO$_{4}$
Creators: name: Clepkens, Jonathan
name: Lindquist, Austin W.
name: Liu, Xiaoyu
name: Kee, Hae-Young
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Even-parity interorbital spin-triplet pairing emerges as an intriguing candidate in multiorbital superconductors with significant Hund's and spin-orbit coupling. Within such a state, the pairing is dominated by the intraband pseudospin-singlet component via the spin-orbit coupling, distinguishing it from a pure spin triplet and motivating the name, shadowed triplet. With atomic spin-orbit coupling, it was shown that this pairing exhibits an anisotropic $s$-wave character, while higher angular momentum pairing symmetries such as $d$- or $g$-wave have been proposed based on phenomenological analyses in candidate systems. A natural question is then whether higher angular momentum pairings may arise with this form of spin-triplet pairing. Here, we examine the interplay between spin-orbit coupling and the electronic dispersions in correlated metals and demonstrate how they can be realized. We apply this idea to Sr$_{2}$RuO$_{4}$ and determine the competition among different pairing states as multiple spin-orbit coupling parameters are tuned. The presence of both $d$- and $g$-wave pairings, including a $d+ig$ state, are found when momentum-dependent spin-orbit coupling with $d$-wave character is increased. Implications of the theory and future directions are also discussed.
description: 13 pages, 3 figures
Benno von Knobelsdorff-Brenkenhoff: Briefe aus den Befreiungskriegen. Ein Beitrag zur Situation von Truppe und Heimat in den Jahren 1813/14. Der Schriftwechsel des Kgl. Preußischen Rittmeisters der Landwehr-Kavallerie Wilhelm von Knobelsdorff mit seiner Frau Franziska, geb. von Brenkenhoff zu Mansfelde bei Friedeberg in der Neumark, 2., wesentl. erw. Aufl.
Creators: name: Gundermann, Iselin
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 1999

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 48 Nr. 3 (1999)
Antisemitismus in den baltischen Staaten in der Zwischenkriegszeit am Beispiel Litauens
Creators: name: Tauber, Joachim
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2005

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 54 Nr. 1 (2005)
Giulio Guidorizzi, Il compagno dell’anima. I Greci e il sogno, Milano, Raffaello Cortina Editore 2013, pp. 253, ISBN 9788860305787
Creators: name: Catenacci, Carmine
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2014

description: Annali Online  Lettere - Ferrara, VIII 2 (2013)
Analytic approach to bifurcation cascades in a class of generalized Hénon-Heiles potentials
Creators: name: Fedotkin, S. N.
name: Magner, A. G.
name: Brack, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We derive stability traces of bifurcating orbits in Hénon-Heiles potentials near their saddles
description: LaTeX revtex4, 38 pages, 7 PostScript figures, 2 tables
title: Миллеровские чтения — 2020: Преемственность и традиции в сохранении и изучении документального академического наследия : материалы III Международной научной конференции, 21–24 октября 2020 г., Санкт-Петербург
Creators: name: Санкт-Петербургский филиал Архива РАН
Publisher: name: Реноме
Year: 2021

description: Сборник научных статей по материалам третьих Миллеровских чтений (21–24 октября 2020 г., Санкт-Петербург) включает статьи ученых из академических институтов, преподавателей вузов, архивистов из разных городов России, стран ближнего и дальнего зарубежья, специалистов-реставраторов. В сборнике представлены исследования по вопросам истории архивного дела, науки и образования, проблемам сохранения документального и культурного наследия. Публикуются новые архивные данные к биографиям деятелей науки.
Издание рассчитано на историков, науковедов, архивистов, реставраторов книг и документов, исследователей, занимающихся архивными изысканиями, студентов соответствующих специальностей, а также на широкий круг читателей, интересующихся судьбами науки.
Federicomaria Muccioli, La storia attraverso gli esempi. Protagonisti e interpretazioni del mondo greco in Plutarco, Milano-Udine, Mimesis 2012, ISBN 978-88-5750-934-1
Creators: name: Berardi, Elisabetta
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2013

description: Annali Online  Lettere - Ferrara, VIII 2 (2013)
"Pastorelle gentili" e "pescatrici leggiadre". Una favola pescatoria tra terra e mare:   La Creazione della Perla di Gasparo Murtola
Creators: name: Chiarla, Myriam
Publisher: name: Annali Online  Lettere - Ferrara
Year: 2014
Subjects: Gasparo Murtola; Favola pescatoria; Perla Margherita; Savoia

description: The article presents the complete transcription of the "piscatory fable" The  Creation of the Pearl, written by Gasparo Murtola on the occasion of the marriage between Margherita di Savoia and Francesco Gonzaga (celebrated in 1608) and published in a book containing various “piscatory” poems printed in 1617. The essay, which follows the text of The Creation of the Pearl,aims to propose a rapid overview of the literary tradition of  the “piscatory” theme and its relationship with the pastoral literature. It also tries to illustrate the main issues of this "piscatory fable" by Murtola, such as the opposition between “land” and “sea” and the praise of Margherita di Savoia, compared to a pearl.
description: Annali Online  Lettere - Ferrara, IX 1 (2014)
Totalitarian and Authoritarian Regimes in Europe. Legacies and Lessons from the Twentieth Century
Creators: name: Friedrich, Klaus-Peter
Publisher: name: Zeitschrift für Ostmitteleuropa-Forschung
Year: 2008

description: Zeitschrift für Ostmitteleuropa-Forschung, Bd. 57 Nr. 1 (2008): Freiheitskonzepte im östlichen Europa des Mittelalters und der Frühneuzeit - Klaus Zernack zum 75. Geburtstag
Fidélité du e-consommateur : Quels facteurs déterminants de l'UX pour l'Afrique ? Cas du e-commerce marocain
Creators: name: HALIM, Amal
name: OUIDDAD, Smail
Publisher: name: Zenodo
Year: 2023
Subjects: Comportement du consommateur ; e-commerce ; expérience utilisateur (UX) ; qualité de service ; fidélité.

description: Le e-commerce au Maroc a connu ces dernières années un essor considérable et a généré de nouveaux usages du consommateur. Afin de comprendre comment la perception de l’expérience utilisateur sur un site e-commerce influence la fidélité du e-consommateur, nous avons mené une étude basée sur les modèles théoriques TAM et UX pour explorer les perceptions des praticiens experts concernant les facteurs déterminants de l’expérience utilisateur. Nos résultats, analysés à travers l’outil Tropes, nous ont permis de ressortir les composantes expérientielles les plus marquantes sur les sites web marocains, qui relèvent des dimensions de l’utilisabilité : Facilité de navigation, Vitesse de chargement et Interactivité. Les caractéristiques de l’utilisateur relatifs à l’âge, l’expertise et la culture d’achat jouent un rôle de modérateur dans le processus d’achat. En identifiant les spécificités de l’UX au Maroc, nous proposons un modèle conceptuel adapté pour aider les consommateurs et les acteurs locaux à développer le e-commerce.
Some Musings on Galaxy Morphology
Creators: name: Bergh, Sidney van den
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Careful inspection of large-scale photographs of Shapley-Ames galaxies seems to show a smooth transition between the morphological characteristics of galaxies located on the narrow red, and on the broad blue, sequences in the galaxian color-magnitude diagram. In other words there does not appear to be a dichotomy between blue and red galaxies. Both the colors and the morphologies of galaxies are found to correlate strongly with their environments. Red and early-type Shapley-Ames galaxies are dominant in clusters, whereas blue late-type star forming objects dominate the general field. Interestingly the colors and morphologies of galaxies in small groups resemble the field and differ from those in clusters. As noted by Baade the presence of dust and star formation are very closely correlated, except in a few galaxies that probably had unusual evolutionary histories. Over the entire range from S0 to Sc there is no significant difference between the integrated colors of normal and barred objects suggesting that the formation of a bar does not significantly affect the stellar evolutionary history of a galaxy.
description: 13 figures; Astronomical Journal in press
Experimental Inference of Neutral and Impurity Transport in Alcator C-Mod Using High-Resolution X-Ray and Ultra-Violet Spectra
Creators: name: Sciortino, F.
name: Howard, N. T.
name: Reksoatmodjo, R.
name: Foster, A. R.
name: Hughes, J. W.
name: Marmar, E. S.
name: Miller, M. A.
name: Mordijck, S.
name: Odstrcčil, T.
name: Pütterich, T.
name: Reinke, M. L.
name: Rice, J. E.
name: Rodriguez-Fernandez, P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present experimental inferences of cross-field impurity transport coefficients for Alcator C-Mod plasmas using a novel forward model for the entire Ca K-alpha spectrum, including satellite lines within the spectral range, to compare to high-resolution X-ray Imaging Crystal Spectroscopy (XICS). These measurements are complemented by Extreme Ultra-Violet (EUV) spectroscopy that constrains transport closer to the edge. Using new atomic data sets for both XICS and EUV analysis has enabled consideration of line ratios across both spectral ranges and has increased the accuracy of inferred transport coefficients. Inclusion of charge exchange between edge thermal neutrals and impurities is shown to be extremely important in C-Mod pedestals. We obtain D atomic neutral densities from experimental D Ly-alpha measurements at the midplane and compare these to SOLPS-ITER simulations, finding good agreement. Bayesian inferences of impurity transport coefficients are presented for L-, EDA H-, and I-mode discharges, making use of the Aurora package for forward modeling and combining our spectroscopic constraints. Experimentally inferred diffusion profiles are found to match turbulent transport models at midradius within uncertainties, using both quasilinear gyro-fluid TGLF SAT-1 and nonlinear ion-scale gyrokinetic CGYRO simulations. Significant discrepancies in convection are observed in some cases, suggesting difficulties in predictions of flat or hollow impurity profiles.
description: 23 pages of main body; 38 pages including appendices. 17 figures. Submitted to Nuclear Fusion
Synchronization interfaces and overlapping communities in complex networks
Creators: name: Li, D.
name: Leyva, I.
name: Almendral, J. A.
name: Sendina-Nadal, I.
name: Buldu, J. M.
name: Havlin, S.
name: Boccaletti, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: We show that a complex network of phase oscillators may display interfaces between domains (clusters) of synchronized oscillations. The emergence and dynamics of these interfaces are studied in the general framework of interacting phase oscillators composed of either dynamical domains (influenced by different forcing processes), or structural domains (modular networks). The obtained results allow to give a functional definition of overlapping structures in modular networks, and suggest a practical method to identify them. As a result, our algorithm could detect information on both single overlapping nodes and overlapping clusters.
description: 5 pages, 4 figures