cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Antineutrophil cytoplasmic autoantibodies specific for myeloperoxidase cause glomerulonephritis and vasculitis in mice
Creators: name: Zhao, Minglang
name: Falk, Ronald J.
name: Heeringa, Peter
name: Aratani, Yasuaki
name: Xiao, Hong
name: Maeda, Nobuyo
name: Liu, Zhi
name: Hu, Peiqi
name: Jennette, J. Charles
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Antineutrophil cytoplasmic autoantibodies (ANCAs) are identified in the circulation of approximately 80% of patients with pauci-immune necrotizing and crescentic glomerulonephritis and systemic small vessel vasculitis, such as microscopic polyangiitis and Wegener granulomatosis. The most common antigen target for ANCAs is myeloperoxidase (MPO), which is found in neutrophils and monocytes. We report definitive experimental animal evidence that ANCAs are pathogenic. MPO knockout (Mpo–/–) mice were immunized with mouse MPO. Splenocytes from these mice or from control mice were injected intravenously into recombinase-activating gene-2–deficient (Rag2–/–) mice, which lack functioning B lymphocytes and T lymphocytes. All mice that received splenocytes developed mild to moderate glomerular immune deposits, but only mice that received 1 × 108 or 5 × 107 anti-MPO splenocytes developed severe necrotizing and crescentic glomerulonephritis, granulomatous inflammation, and systemic necrotizing vasculitis, including necrotizing arteritis and hemorrhagic pulmonary capillaritis. To test the pathogenic potential of antibodies alone, purified anti-MPO IgG or control IgG was injected intravenously into Rag2–/– mice and wild-type mice. Mice that received anti-MPO IgG but not mice that received control IgG developed focal necrotizing and crescentic glomerulonephritis with a paucity of glomerular Ig deposition. Thus, anti-MPO IgG alone was able to cause pauci-immune glomerular necrosis and crescent formation in the absence of functional T or B lymphocytes in Rag2–/– mice and in the presence of an intact immune system in wild-type C57BL/6J mice. This animal model offers strong support for a direct pathogenic role for ANCA IgG in human glomerulonephritis and vasculitis.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 6 (44)]
Creators: name: Martin, V.
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1419
Subjects: subject: Papsturkunde
subject: Urkunde
subject: 090

description: Papst Martin V. teilt der Geistlichkeit des Benediktinerklosters St. Benedicti in Polirone im Bistum Manuta mit, nach Amtsabtritt und Tod des bisherigen Abts dem Guido Gonzaga, canonicus aus Mantua und apostolischer Notar, die Administration des Klosters zu übertragen.
Decreased anxiety-like behavior, reduced stress hormones, and neurosteroid supersensitivity in mice lacking protein kinase Cε
Creators: name: Hodge, Clyde W.
name: Morrow, A. Leslie
name: Mehmert, Kristin
name: Messing, Robert O.
name: Olive, M. Foster
name: Walter, Helen
name: Raber, Jacob
name: McMahon, Thomas
name: Sanchez-Perez, Ana Maria
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Mice lacking protein kinase Cε (PKCε) are supersensitive to positive allosteric modulators of gamma aminobutyrate type A (GABAA) receptors. Since many of these compounds are anxiolytic, we examined whether anxiety-like behavior is altered in these mice. PKCε-null mice showed reduced anxiety-like behavior and reduced levels of the stress hormones corticosterone and adrenocorticotrophic hormone (ACTH). This was associated with increased sensitivity to neurosteroid modulators of GABAA receptors. Treatment of PKCε-null mice with the GABAA receptor antagonist bicuculline restored corticosterone levels and anxiety-like behavior to wild-type levels. These results suggest that increased GABAA receptor sensitivity to neurosteroids contributes to reduced anxiety-like behavior and stress hormone responses in PKCε-null mice. The findings also suggest PKCε as a possible therapeutic target for development of anxiolytics.
Novel Itinerant Antiferromagnet TiAu
Creators: name: Svanidze, E.
name: Wang, Jiakui K.
name: Besara, T.
name: Liu, L.
name: Huang, Q.
name: Siegrist, T.
name: Frandsen, B.
name: Lynn, J. W.
name: Nevidomskyy, Andriy H.
name: Gamża, Monika Barbara
name: Aronson, M. C.
name: Uemura, Y. J.
name: Morosan, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Itinerant and local moment magnetism have substantively different origins, and require distinct theoretical treatment. A unified theory of magnetism has long been sought after, and remains elusive, mainly due to the limited number of known itinerant magnetic systems. In the case of the two such examples discovered several decades ago, the itinerant ferromagnets ZrZn_2 and Sc_3In, the understanding of their magnetic ground states draws on the existence of 3d electrons subject to strong spin fluctuations. Similarly, in Cr, an elemental itinerant antiferromagnet (IAFM) with a spin density wave (SDW) ground state, its 3d character has been deemed crucial to it being magnetic. Here we report the discovery of the first IAFM compound with no magnetic constituents, TiAu. Antiferromagnetic order occurs below a Neel temperature T_N ~ 36 K, about an order of magnitude smaller than in Cr, rendering the spin fluctuations in TiAu more important at low temperatures. This new IAFM challenges the currently limited understanding of weak itinerant antiferromagnetism, while providing long sought-after insights into the effects of spin fluctuations in itinerant electron systems.
description: 22 pages, 9 figures
Detecting Accelerating Eccentric Binaries in the LISA Band
Creators: name: Xuan, Zeyuan
name: Naoz, Smadar
name: Chen, Xian
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Many gravitational wave (GW) sources in the LISA band are expected to have non-negligible eccentricity. Furthermore, many of them can undergo acceleration because they reside in the presence of a tertiary. Here we develop analytical and numerical methods to quantify how the compact binary's eccentricity enhances the detection of its peculiar acceleration. We show that the general relativistic precession pattern can disentangle the binary's acceleration-induced frequency shift from the chirp-mass-induced frequency shift in GW template fitting, thus relaxing the signal-to-noise ratio requirement for distinguishing the acceleration by a factor of $10\sim100$. Moreover, by adopting the GW templates of the accelerating eccentric compact binaries, we can enhance the acceleration measurement accuracy by a factor of $\sim100$, compared to the zero-eccentricity case, and detect the source's acceleration even if it does not change during the observational time. For example, a stellar-mass binary black hole (BBH) with moderate eccentricity in the LISA band yields an error of the acceleration measurement $\sim10^{-7}m\cdot s^{-2}$ for $\rm{SNR}=20$ and observational time of $4$ yrs. In this example, we can measure the BBHs' peculiar acceleration even when it is $\sim1\rm pc$ away from a $4\times 10^{6}\rm M_{\odot}$ SMBH. Our results highlight the importance of eccentricity to the LISA-band sources and show the necessity of developing GW templates for accelerating eccentric compact binaries.
description: 15 pages (+references), 9 figures. Accepted by PRD
The Surface Array planned for IceCube-Gen2 (ICRC 2021)
Creators: name: Schroeder, Frank G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: IceCube-Gen2, the extension of the IceCube Neutrino Observatory, will feature three main components: an optical array in the deep ice, a large-scale radio array in the shallow ice and firn, and a surface detector above the optical array. Thus, IceCube-Gen2 will not only be an excellent detector for PeV neutrinos, but also constitutes a unique setup for the measurement of cosmic-ray air showers, where the electromagnetic component and low-energy muons are measured at the surface and high-energy muons are measured in the ice. As for ongoing enhancement of IceCube's current surface array, IceTop, we foresee a combination of elevated scintillation and radio detectors for the Gen2 surface array, aiming at high measurement accuracy for air showers. The science goals are manifold: The in-situ measurement of the cosmic-ray flux and mass composition, as well as more thorough tests of hadronic interaction models, will improve the understanding of muons and atmospheric neutrinos detected in the ice, in particular, regarding prompt muons. Moreover, the surface array provides a cosmic-ray veto for the in-ice detector and contributes to the calibration of the optical and radio arrays. Last but not least, the surface array will make major contributions to cosmic-ray science in the energy range of the transition from Galactic to extragalactic sources. The increased sensitivities for photons and for cosmic-ray anisotropies at multi-PeV energies provide a chance to solve the puzzle of the origin of the most energetic Galactic cosmic rays and will serve IceCube's multimessenger mission.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 6 (65)]
Creators: name: Georgius
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1425
Subjects: subject: Sonstige geistliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Georgius de Uspinellis, praeceptor der domus und der praeceptoria St. Antonii Cremonae et Daniatae im Bistum Cremona, spricht den Kanoniker Matheus de Lafossa, procurator und administrator des Klosters St. Antonii Vienensis diocesis, frei vom Vorwurf der Säumigkeit von Abgaben für ein Haus samt weiteren Gütern, gelegen auf dem Gebiet von Crema, nachdem Matheus versichert hat, diese entrichtet zu haben.
Astronomy outreach in Namibia: H.E.S.S. and beyond
Creators: name: Dalgleish, Hannah
name: Prokoph, Heike
name: Zhu, Sylvia
name: Backes, Michael
name: Cotter, Garret
name: Catalano, Jacqueline
name: Ruiz-Velasco, Edna
name: Kasai, Eli
name: Collaboration, the H. E. S. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: Astronomy plays a major role in the scientific landscape of Namibia. Because of its excellent sky conditions, Namibia is home to ground-based observatories like the High Energy Spectroscopic System (H.E.S.S.), in operation since 2002. Located near the Gamsberg mountain, H.E.S.S. performs groundbreaking science by detecting very-high-energy gamma rays from astronomical objects. The fascinating stories behind many of them are featured regularly in the ``Source of the Month'', a blog-like format intended for the general public with more than 170 features to date. In addition to other online communication via social media, H.E.S.S. outreach activities have been covered locally, e.g. through `open days' and guided tours on the H.E.S.S. site itself. An overview of the H.E.S.S. outreach activities are presented in this contribution, along with discussions relating to the current landscape of astronomy outreach and education in Namibia. There has also been significant activity in the country in recent months, whereby astronomy is being used to further sustainable development via human capacity-building. Finally, as we take into account the future prospects of radio astronomy in the country, momentum for a wider range of astrophysics research is clearly building -- this presents a great opportunity for the astronomy community to come together to capitalise on this movement and support astronomy outreach, with the overarching aim to advance sustainable development in Namibia.
description: ICRC 2021 conference proceedings, 9 pages, 1 figure, 1 table
gammaALPs: An open-source python package for computing photon-axion-like-particle oscillations in astrophysical environments
Creators: name: Meyer, Manuel
name: Davies, James
name: Kuhlmann, Julian
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Axions and axion-like particles (ALPs) are hypothetical particles that occur in extensions of the Standard Model and are candidates for cold dark matter. They could be detected through their oscillations into photons in the presence of external electromagnetic fields. gammaALPs is an open-source python framework that computes the oscillation probability between photons and axions/ALPs. In addition to solving the photon-ALP equations of motion, gammaALPs includes models for magnetic fields in different astrophysical environments such as jets of active galactic nuclei, intra-cluster and intergalactic media, and the Milky Way. Users are also able to easily incorporate their own custom magnetic-field models. We review the basic functionality and features of gammaALPs, which is heavily based on other open-source scientific packages such as numpy and scipy. Although focused on gamma-ray energies, gammaALPs can be easily extended to arbitrary photon energies.
description: Proceedings of the 37th International Cosmic Ray Conference (ICRC 2021). The online documentation is available at https://gammaalps.readthedocs.io/
Radiative decays of the neutral $Z_c(3900)$ and $Z_c(4020)$
Creators: name: Wang, Xiao-Yun
name: Li, Gang
name: An, Chun-Sheng
name: Xie, Ju-Jun
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the radiative decays $Z_c(3900)/Z_c(4020) \to γχ_{cJ}(γχ_{cJ}^\prime)$ ($J=0, 1, 2$), with the assumption that the $Z_c(3900)$ and $Z_c(4020)$ couple strongly to $D\bar D^* +c.c$ and $D^*{\bar D}^*$ channel, respectively. By considering the contributions of intermediate charmed mesons triangle loops within an effective Lagrangian approach, it is shown that the calculated partial widths of $Z_c(3900) \to γχ_{cJ}$ are about a few hundreds keVs, while the obtained partial widths $Z_c(4020) \to γχ_{cJ}$ are about tens of keVs. The predicted partial widths of $Z_c(3900)\toγχ_{c0,1}^\prime$ are less than 1 keV, which mainly due to the very small phase space. For $Z_c(4020)\toγχ_{c0,2}^\prime$, the calculated partial widths are usually smaller than 1 keV. For the $Z_c(4020)\toγχ_{c1}^\prime$ process, the obtained partial widths can reach up to the order of 10 keV. Furthermore, the dependence of these ratios between different decay modes on the masses of $Z_c(3900)$ or $Z_c(4020)$ are also investigated, which may be a good quantity for the experiments. It is hoped that these calculations here could be tested by future experiments.
description: 9 pages, 6 figures. Accepted by Physical Review D
Extending the sample of core-collapse supernovae for searches of axion-like-particle induced gamma-ray bursts with the Fermi LAT
Creators: name: Meyer, Manuel
name: Petrushevska, Tanja
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: During a core-collapse supernova (SN), axion-like particles (ALPs) could be produced through the Primakoff process and subsequently convert into gamma rays in the magnetic field of the Milky Way. Using a sample of well studied extragalactic SNe at optical wavelengths, we estimate the time of the core collapse and search for a coincident gamma-ray burst with the Fermi Large Area Telescope (LAT). Under the assumption that at least one SN was contained within the LAT field of view, we exclude photon-ALP couplings within a factor of $\sim$5 of previous limits from SN1987A. With the increasing number of SNe observed with optical surveys, our results demonstrate the potential to probe ALP dark matter with combined optical and gamma-ray observations. We also provide preliminary results for the estimation of explosion times of 15 close-by SNe observed recently with ZTF. Our findings show that the explosion time can be estimated within one day (statistical uncertainty only) making them promising targets for a follow-up LAT analysis.
description: Proceedings of the 37th International Cosmic Ray Conference (ICRC 2021)
Universal parameterization of initial-state fluctuations and its applications to event-by-event anisotropy
Creators: name: Yan, Li
name: Ollitrault, Jean-Yves
name: Poskanzer, Art M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We propose Elliptic Power and Power parameterizations for the probability distribution of initial state anisotropies in heavy-ion collisions. By assuming a linear eccentricity scaling, the new parameterizations can also be applied to fluctuations of harmonic flow. In particular, we analyze flow multi-particle cumulants and event-by-event distributions, both of which are recently measured at the LHC.
description: 4 pages and 3 figures, proceedings of the XXIV Quark Matter conference, May 19-24 2014, Darmstadt (Germany)
Effects of reduced mucus oxygen concentration in airway Pseudomonas infections of cystic fibrosis patients
Creators: name: Ulrich, Martina
name: Bellon, Gabriel
name: Cekici, Aynur
name: Döring, Gerd
name: Boucher, Richard C.
name: Berger, Jürgen
name: Yankaskas, James R.
name: Weiss, Tilo
name: Randell, Scott
name: Schwab, Ute
name: Birrer, Peter
name: Worlitzsch, Dieter
name: Meyer, Keith C.
name: Botzenhart, Konrad
name: Tarran, Robert
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Current theories of CF pathogenesis predict different predisposing “local environmental” conditions and sites of bacterial infection within CF airways. Here we show that, in CF patients with established lung disease, Psuedomonas aeruginosa was located within hypoxic mucopurulent masses in airway lumens. In vitro studies revealed that CF-specific increases in epithelial O2 consumption, linked to increased airway surface liquid (ASL) volume absorption and mucus stasis, generated steep hypoxic gradients within thickened mucus on CF epithelial surfaces prior to infection. Motile P. aeruginosa deposited on CF airway surfaces penetrated into hypoxic mucus zones and responded to this environment with increased alginate production. With P. aeruginosa growth in oxygen restricted environments, local hypoxia was exacerbated and frank anaerobiosis, as detected in vivo, resulted. These studies indicate that novel therapies for CF include removal of hypoxic mucus plaques and antibiotics effective against P. aeruginosa adapted to anaerobic environments.
Modified hybrid inflation, reheating and stabilization of the electroweak vacuum
Creators: name: Ibrahim, Merna
name: Ashry, Mustafa
name: Elkhateeb, Esraa
name: Awad, Adel M.
name: Moursy, Ahmad
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We propose a modification to the standard hybrid inflation model \cite{Linde:1993cn}, that connects a successful hybrid inflation scenario to the standard model Higgs sector, via the electroweak vacuum stability. The proposed model results in an effective inflation potential of a hilltop-type, with both the trans-Planckian and sub-Planckian inflation regimes consistent with the recent Planck/BICEP combined results. Reheating via the inflation sector decays to right-handed neutrinos is considered. An upper bound on the reheating temperature $T_{\rm R} \lsim 2\times 10^{11}~(1\times 10^{13})$ GeV, for large~(small) field inflation, will suppress contributions from one-loop quantum corrections to the inflation potential. This may push the neutrino Yukawa couplings to be ${\cal O}(1)$ and affect the vacuum stability. We show that the couplings of the SM Higgs to the inflation sector can guarantee the electroweak vacuum stability up to the Planck scale. The so-called hybrid Higgs-inflaton model leads to a positive correction for the Higgs quartic coupling at a threshold scale, which is shown to have a very significant effect in stabilizing the electroweak vacuum. We find that even with ${\cal O}(1)$ neutrino Yukawa couplings, threshold corrections leave the SM vacuum stability intact.
description: 24 pages, 5 figures, 3 tables
Evidence of a signature of planet formation processes from solar neutrino fluxes
Creators: name: Kunitomo, Masanobu
name: Guillot, Tristan
name: Buldgen, Gaël
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Solar evolutionary models are thus far unable to reproduce spectroscopic, helioseismic, and neutrino constraints consistently, resulting in the so-called solar modeling problem. In parallel, planet formation models predict that the evolving composition of the protosolar disk and, thus, of the gas accreted by the proto-Sun must have been variable. We show that solar evolutionary models that include a realistic planet formation scenario lead to an increased core metallicity of up to 5%, implying that accurate neutrino flux measurements are sensitive to the initial stages of the formation of the Solar System. Models with homogeneous accretion match neutrino constraints to no better than 2.7$σ$. In contrast, accretion with a variable composition due to planet formation processes, leading to metal-poor accretion of the last $\sim$4% of the young Sun's total mass, yields solar models within 1.3$σ$ of all neutrino constraints. We thus demonstrate that in addition to increased opacities at the base of the convective envelope, the formation history of the Solar System constitutes a key element in resolving the current crisis of solar models.
description: Accepted for publication in A&A. 10 pages, 7 figures. Supplemental materials are available at https://doi.org/10.5281/zenodo.7156794
Optimization of radiation hardness and charge collection of edgeless silicon pixel sensors for photon science
Creators: name: Zhang, Jiaguo
name: Maimone, Damaris Tartarotti
name: Pennicard, David
name: Sarajlic, Milija
name: Graafsma, Heinz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Recent progress in active-edge technology of silicon sensors enables the development of large-area tiled silicon pixel detectors with small dead space between modules by utilizing edgeless sensors. Such technology has been proven in successful productions of ATLAS and Medipix-based silicon pixel sensors by a few foundries. However, the drawbacks of edgeless sensors are poor radiation hardness for ionizing radiation and non-uniform charge collection by edge pixels. In this work, the radiation hardness of edgeless sensors with different polarities has been investigated using Synopsys TCAD with X-ray radiation-damage parameters implemented. Results show that if no conventional guard ring is present, none of the current designs are able to achieve a high breakdown voltage (typically < 30 V) after irradiation to a dose of ~10 MGy. In addition, a charge-collection model has been developed and was used to calculate the charges collected by the edge pixels of edgeless sensors when illuminated with X-rays. The model takes into account the electric field distribution inside the pixel sensor, the absorption of X-rays, drift and diffusion of electrons and holes, charge sharing effect, and threshold settings in ASICs. It is found that the non-uniform charge collection of edge pixels is caused by the strong bending of electric field and the non-uniformity depends on bias voltage, sensor thickness and distance from active edge to the last pixel ("edge space"). In particular, the last few pixels close to the active edge of the sensor are not sensitive to low-energy X-rays (< 10 keV) especially for sensors with thicker Si and smaller edge space. The results from the model calculation have been compared to measurements and good agreement was obtained. The model has been used to optimize the edge design.
description: 12 pages, 8 figures
Detection of new Extreme BL Lac objects with H.E.S.S. and Swift XRT
Creators: name: de Lavergne, Mathieu de Bony
name: Bylund, Tomas
name: Meyer, Manuel
name: Noel, Angel Priyana
name: Sanchez, David A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Extreme high synchrotron peaked blazars (EHBLs) are amongst the most powerful accelerators found in nature. Usually the synchrotron peak frequency of an EHBL is above $10^{17}\,$Hz, i.e., lies in the range of medium to hard X-rays making them ideal sources to study particle acceleration and radiative processes. EHBL objects are commonly observed at energies beyond several TeV, making them also powerful probes of gamma-ray absorption in the intergalactic medium. During the last decade, several attempts have been made to increase the number of EHBL detected at TeV energies and probe their spectral characteristics. Here we report new detections of EHBLs in the TeV energy regime, each at a redshift of less than 0.2, by the High Energy Stereoscopic System (H.E.S.S.). Also, we report on X-ray observations of these EHBLs candidates with Swift XRT. In conjunction with the very high energy observations, this allows us to probe the radiation mechanisms and the underlying particle acceleration processes.
description: Proceedings of the 37th International Cosmic Ray Conference (ICRC 2021)
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 6 (45)]
Creators: name: De Benzonibus, Johannes
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1420
Subjects: subject: Sonstige weltliche Aussteller
subject: Notarsurkunde
subject: Urkunde
subject: 090

description: Johannes de Benzonibus, Sohn des verstorbenen Bertolinus, aus der Nachbarschaft St. Blaxii in Cremona, Testamentsvollstrecker des [Am]broxius aus Mailand, verkauft mit Genehmigung des Franciscus de Bursis, praepositus des Klosters St. Cataldi in Cremona, dem Baldinus de Medicis, Sohn des frater Ambroxius, wohnhaft in der Nachbarschaft St. Blaxii in Cremona, ein Stück Land, gelegen ebendort.
Disks of Stars in the Galactic center triggered by Tidal Disruption Events
Creators: name: Perna, Rosalba
name: Grishin, Evgeni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In addition to a supermassive black hole (SMBH), the central parsec of the Milky Way hosts over a hundred of massive, high velocity young stars whose existence, and organisation of a subset of them in one, or possibly two, mis-aligned disks, is puzzling. Due to a combination of low medium density and strong tidal forces in the vicinity of Sgr A*, stars are not expected to form. Here we propose a novel scenario for their in-situ formation: a jetted tidal disruption event (TDE) from an older wandering star triggers an episode of positive feedback of star formation in the plane perpendicular to the jet, as demonstrated via numerical simulations in the context of jet-induced feedback in galactic outflows. An over-pressured cocoon surrounding the jet shock-compresses clumps to densities high enough to resist the SMBH tidal field. The TDE rate of $10^{-5}-10^{-4}$ yr$^{-1}$ per galaxy, out of which a few percent events are jetted, implies a jetted TDE event per galaxy to occur every few million years. This timescale is interestingly of the same order of the age of the disk stars. The mass function predicted by our mechanism is top-heavy. Additionally, since TDEs are isotropic, our model predicts a random orientation for the disk of stars with respect to the plane of the galaxy and, due to the relatively high TDE rate, it can account for multiple disks of stars with uncorrelated orientations.
description: ApJL in press
Performance of the New FlashCam-based Camera in the 28\,m Telescope of H.E.S.S
Creators: name: Bi, Baiyang
name: Barcelo, Miquel
name: Bauer, Christian
name: Benkhali, Faical Ait
name: Catalano, Jacqueline
name: Diebold, Sebastian
name: Föhr, Christian
name: Funk, Stefan
name: Giavitto, Gianluca
name: Hermann, German
name: Hinton, Jim
name: Jung-Richardt, Ira
name: Kalekin, Oleg
name: Kankanyan, Ruben
name: Kihm, Thomas
name: Leuschner, Fabian
name: Pfeifer, Marc
name: Pühlhofer, Gerd
name: Reimer, Olaf
name: Sailer, Simon
name: Salzmann, Heiko
name: Santangelo, Andrea
name: Steinmassl, Simon
name: Schanz, Thomas
name: Tenzer, Chris
name: Werner, Felix
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: In October 2019, the central 28 m telescope of the H.E.S.S. experiment has been upgraded with a new camera. The camera is based on the FlashCam design which has been developed in view of a possible future implementation in the Medium-Sized Telescopes of the Cherenkov Telescope Array (CTA), with emphasis on cost and performance optimization and on reliability. The fully digital design of the trigger and readout system makes it possible to operate the camera at high event rates and to precisely adjust and understand the trigger system. The novel design of the front-end electronics achieves a dynamic range of over 3,000 photoelectrons with only one electronics readout circuit per pixel. Here we report on the performance parameters of the camera obtained during the first year of operation in the field, including operational stability and optimization of calibration algorithms.
description: Proceedings of the 37th International Cosmic Ray Conference (ICRC 2021)
Пировиноградная кислота как критерий оценки углеводного обмена высокопродуктивных коров
Creators: name: Коломиец С.А.
Publisher: name: Эффективное животноводство
Year: 2023
Subjects: пировиноградная кислота
глюкоза
энергетический обмен
высокопродуктивные коровы
кровь
pyruvic acid
glucose
energy metabolism
highly productive cows
blood

description: Кровь, как одна из важнейших систем организма, играет исключительно важную роль в его жизнедеятельности, являясь основной транспортной системой метаболизма и взаимодействия органов друг с другом. Постоянный мониторинг биохимических показателей крови позволяет своевременно выявлять нарушения в обменных процессах крупного рогатого скота (КРС).
description: Blood, as one of the most important systems of the body, plays an etremely important role in its extremely life, being the main transport system of metabolism and interaction of organs with each other. Constant monitoring of biochemical blood parameters allows for timely detection of disturbances in the metabolic proesses of cattle.
[Halle (Saale), Universitäts- und Landesbibliothek Sachsen-Anhalt, Morbio 6 (99)]
Creators: name: Eugen, IV.
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1441
Subjects: subject: Papsturkunde
subject: Urkunde
subject: 090

description: Papst Eugen IV. bestätigt die Vereinbarung zwischen der Cassinensischen Kongregation des Benediktinerordens (monachi de obseruantia sancte Iustine ordinis sancti Benedicti) und Guido Gonzaga, diaconus aus Mantua und päpstlicher Notar, wonach dem Benediktinerkloster von Polirone nach erfolgter Reform alle Güter restituiert werden.
3D Bayesian Variational Full Waveform Inversion
Creators: name: Zhang, Xin
name: Lomas, Angus
name: Zhou, Muhong
name: Zheng, York
name: Curtis, Andrew
Publisher: name: arXiv
Year: 2022
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Seismic full-waveform inversion (FWI) provides high resolution images of the subsurface by exploiting information in the recorded seismic waveforms. This is achieved by solving a highly nonnlinear and nonunique inverse problem. Bayesian inference is therefore used to quantify uncertainties in the solution. Variational inference is a method that provides probabilistic, Bayesian solutions efficiently using optimization. The method has been applied to 2D FWI problems to produce full Bayesian posterior distributions. However, due to higher dimensionality and more expensive computational cost, the performance of the method in 3D FWI problems remains unknown. We apply three variational inference methods to 3D FWI and analyse their performance. Specifically we apply automatic differential variational inference (ADVI), Stein variational gradient descent (SVGD) and stochastic SVGD (sSVGD), to a 3D FWI problem, and compare their results and computational cost. The results show that ADVI is the most computationally efficient method but systematically underestimates the uncertainty. The method can therefore be used to provide relatively rapid but approximate insights into the subsurface together with a lower bound estimate of the uncertainty. SVGD demands the highest computational cost, and still produces biased results. In contrast, by including a randomized term in the SVGD dynamics, sSVGD becomes a Markov chain Monte Carlo method and provides the most accurate results at intermediate computational cost. We thus conclude that 3D variational full-waveform inversion is practically applicable, at least in small problems, and can be used to image the Earth's interior and to provide reasonable uncertainty estimates on those images.
Noether analysis of Scalar-Tensor Cosmology
Creators: name: Terzis, Petros A.
name: Dimakis, N.
name: Christodoulakis, T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A scalar--tensor theory of gravity, containing an arbitrary coupling function $F(ϕ)$ and a general potential $V(ϕ)$, is considered in the context of a spatially flat FLRW model. The use of reparametrization invariance enables a particular lapse parametrization in which the mini--superspace metric completely specifies the dynamics of the system. A requirement of existence of the maximal possible number of autonomous integrals of motion is imposed. This leads to a flat mini--superspace metric realized by a particular relation between the coupling function and the potential. The space of solutions is completely described in terms of the three autonomous integrals of motion constructed by the Killing fields of the mini--supermetric and an additional rheonomous emanating from the homothetic field. The solutions contain the arbitrary function which remains after the imposition of the relation between $F(ϕ)$ and $V(ϕ)$. To exemplify the use of the general results, we select some particular cases and study their physical implications through an effective energy--momentum tensor, which tends out to be that of a perfect fluid.
description: Latex 2e source file, 26 pages, 2 figures
Air shower genealogy for muon production
Creators: name: Reininghaus, Maximilian
name: Ulrich, Ralf
name: Pierog, Tanguy
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Measurements of the muon content of extensive air showers at the highest energies show discrepancies compared to simulations as large as the differences between proton and iron. This so-called muon puzzle is commonly attributed to a lack of understanding of the hadronic interactions in the shower development. Furthermore, measurements of the fluctuations of muon numbers suggest that the discrepancy is likely a cumulative effect of interactions of all energies in the cascade. A feature of the air shower simulation code CORSIKA 8 allows us to access all previous generations of final-state muons up to the first interaction. With this technique, we study the influence of interactions happening at any intermediate stage in the cascade on muons depending on their lateral distance in a quantitative way and compare our results with predictions of the Heitler-Matthews model.
description: 8 pages, 4 figures, proceedings of the 37th International Cosmic Ray Conference (ICRC 2021); v2: references updated
Probing the Structure and Evolution of BASS AGN through Eddington Ratios
Creators: name: Ananna, Tonima Tasnim
name: Urry, C. Megan
name: Ricci, Claudio
name: Natarajan, Priyamvada
name: Hickox, Ryan C.
name: Trakhtenbrot, Benny
name: Treister, Ezequiel
name: Weigel, Anna K.
name: Ueda, Yoshihiro
name: Koss, Michael J.
name: Bauer, F. E.
name: Temple, Matthew J.
name: Balokovic, Mislav
name: Mushotzky, Richard
name: Auge, Connor
name: Sanders, David B.
name: Kakkad, Darshan
name: Sartori, Lia F.
name: Marchesi, Stefano
name: Harrison, Fiona
name: Stern, Daniel
name: Oh, Kyuseok
name: Caglar, Turgay
name: Powell, Meredith C.
name: Podjed, Stephanie A.
name: Mejia-Restrepo, Julian E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We constrain the intrinsic Eddington ratio (\lamEdd ) distribution function for local AGN in bins of low and high obscuration (log NH <= 22 and 22 < log NH < 25), using the Swift-BAT 70-month/BASS DR2 survey. We interpret the fraction of obscured AGN in terms of circum-nuclear geometry and temporal evolution. Specifically, at low Eddington ratios (log lamEdd < -2), obscured AGN outnumber unobscured ones by a factor of ~4, reflecting the covering factor of the circum-nuclear material (0.8, or a torus opening angle of ~ 34 degrees). At high Eddington ratios (\log lamEdd > -1), the trend is reversed, with < 30% of AGN having log NH > 22, which we suggest is mainly due to the small fraction of time spent in a highly obscured state. Considering the Eddington ratio distribution function of narrow-line and broad-line AGN from our prior work, we see a qualitatively similar picture. To disentangle temporal and geometric effects at high lamEdd, we explore plausible clearing scenarios such that the time-weighted covering factors agree with the observed population ratio. We find that the low fraction of obscured AGN at high lamEdd is primarily due to the fact that the covering factor drops very rapidly, with more than half the time is spent with < 10% covering factor. We also find that nearly all obscured AGN at high-lamEdd exhibit some broad-lines. We suggest that this is because the height of the depleted torus falls below the height of the broad-line region, making the latter visible from all lines of sight.
description: Accepted by ApJL
Life and death of a hero - Lessons learned from modeling the dwarf spheroidal Hercules: an incorrect orbit?
Creators: name: Blana, M.
name: Fellhauer, M.
name: Smith, R.
name: Candlish, G. N.
name: Cohen, R.
name: Farias, J. P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Hercules is a dwarf spheroidal satellite of the Milky Way, found at a distance of about 138 kpc, and showing evidence of tidal disruption. It is very elongated and exhibits a velocity gradient of 16 +/- 3 km/s/kpc. Using this data a possible orbit of Hercules has previously been deduced in the literature. In this study we make use of a novel approach to find a best fit model that follows the published orbit. Instead of using trial and error, we use a systematic approach in order to find a model that fits multiple observables simultaneously. As such, we investigate a much wider parameter range of initial conditions and ensure we have found the best match possible. Using a dark matter free progenitor that undergoes tidal disruption, our best-fit model can simultaneously match the observed luminosity, central surface brightness, effective radius, velocity dispersion, and velocity gradient of Hercules. However, we find it is impossible to reproduce the observed elongation and the position angle of Hercules at the same time in our models. This failure persists even when we vary the duration of the simulation significantly, and consider a more cuspy density distribution for the progenitor. We discuss how this suggests that the published orbit of Hercules is very likely to be incorrect.
description: accepted by MNRAS; 19 pages, 19 figures, 2 tables
Quantum information masking of an arbitrary qudit can be realized in multipartite lower dimensional systems
Creators: name: Shang, Wei-Min
name: Fan, Xing-Yan
name: Zhang, Fu-Lin
name: Chen, Jing-Ling
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum information masking is a protocol that hides the original quantum information from subsystems and spreads it over quantum correlation, which is available to multipartite except bipartite systems. In this work, we explicitly study the quantum information masking in multipartite scenario and prove that all the k-level quantum states can be masked into a m-qudit systems (m > 4) whose local dimension d < k and the upper bound of k is tighter than the quantum Singleton bound. In order to observe the masking process intuitively, explicitly controlled operations are provided. Our scheme well demonstrates the abundance of quantum correlation between multipartite quantum system and has potential application in the security of quantum information processing.
Soft gluon emission from heavy quark scattering in strongly interacting quark-gluon plasma
Creators: name: Song, Taesoo
name: Grishmanovskii, Ilia
name: Soloveva, Olga
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply the Low's theorem to soft gluon emission from heavy quark scattering in the nonperturbative strongly interacting quark-gluon plasma (sQGP). The sQGP is described in terms of the dynamical quasi-particles and adjusted to reproduce the EoS from lQCD at finite temperature and chemical potential. Since the emitted gluon is soft and of long wavelength, it does not provide information on the detailed structure of the scattering, and only the emission from incoming and outgoing partons is enough. It simplifies the calculations making the scattering amplitude factorizable into the elastic scattering and the emission of soft gluon. Imposing a proper upper limit on the emitted gluon energy, we obtain the guage-invariant scattering cross sections of heavy quarks with the massive partons of the medium as well as their transport coefficients (momentum drag and diffusion) in the QGP and compare with those from the elastic scattering without gluon emission.
description: 14 pages, 10 figures
Aging transition in coupled quantum oscillators
Creators: name: Bandyopadhyay, Biswabibek
name: Banerjee, Tanmoy
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: Aging transition is an emergent behavior observed in networks consisting of active (self-oscillatory) and inactive (non self-oscillatory) nodes, where the network transits from a global oscillatory state to an oscillation collapsed state when the fraction of inactive oscillators surpasses a critical value. However, the aging transition in quantum domain has not been studied yet. In this paper we investigate the quantum manifestation of aging transition in a network of active-inactive quantum oscillators. We show that, unlike classical case, the quantum aging is not characterized by a complete collapse of oscillation but by sufficient reduction in the mean boson number. We identify a critical ``knee" value in the fraction of inactive oscillators around which quantum aging occurs in two different ways. Further, in stark contrast to the classical case, quantum aging transition depends upon the nonlinear damping parameter. We also explain the underlying processes leading to quantum aging that have no counterpart in the classical domain.
description: Comments are welcome
Measuring customer experience quality in the public sector: the role of service design perceptions in the UAE
Creators: name: Almidfa, Tariq
Publisher: name: Anglia Ruskin Research Online (ARRO)
Year: 2024

description: Customer experience has recently become a key focus in marketing and service research and practice, increasing rapidly among researchers and practitioners. This increased focus is due to its impact on customers and business performance in general for private and public sector organizations. The role of the customer has evolved dramatically for the long-term success of an organization’s product or service, leading toward customer-centric approaches that will enhance the customer experience. Governments worldwide are increasingly focusing on creating a better customer experience by touching all aspects of the service ecosystem.Therefore, managing and monitoring the quality of the customer experience is part of an organization's success. Researchers have called for a better understanding of how to measure customer experience quality, as there is no single well-accepted measurement scale from the researchers to measure the customer experience, such as other concepts, due to the complexity and multidisciplinary of the concept. Moreover, most efforts to build a measurement scale for customer experience were in the private sector, whereas efforts in the public sector are scarce. This study attempts to bridge the gap in the existing literature by examining the customer experience quality scale in the public sector. Furthermore, it tries to link customer experience quality with the service design, examine the effect of the customer perceptions of service design on the customer experience, and tries to analyse the effects of the customer experience on the outcomes of it, which are customer emotions, word of mouth, customer satisfaction and customer well-being.The study adopted the positivist philosophy using a quantitative methodology with a survey questionnaire and used existing measurement scale models adapted to fit the public sector. The survey conducted covered six main dimensions related to customer experience quality. Before launching the survey, a pilot study was conducted, which included academics, practitioners, and customers. The survey had 51 statements distributed online to public sector customers to check their impressions and feelings toward the model dimensions.Reliability and validity were tested and confirmed, including the measurement and structural models. The proposed relationships in the hypotheses were accepted. The perceptions of service design of the customers in the public sector significantly impacted customer experience quality. Likewise, customer experience quality significantly and positively affected customer experience. In summary, all the proposed hypotheses were accepted. Finally, the study's theoretical and managerial implications and contributions were highlighted, providing a pathway for future research, especially in the public sector.