cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tidally-induced nonlinear resonances in EMRIs with an analogue model
Creators: name: Bronicki, David
name: Cárdenas-Avendaño, Alejandro
name: Stein, Leo C.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: One of the important targets for the future space-based gravitational wave observatory LISA is extreme mass ratio inspirals (EMRIs), where long and accurate waveform modeling is necessary for detection and characterization. Modeling EMRI dynamics requires accounting for effects such as the ones induced by an external tidal field, which can break integrability at resonances and cause significant dephasing. In this paper, we use a Newtonian analogue of a Kerr black hole to study the effect of an external tidal field on the dynamics and the gravitational waveform. We have developed a numerical framework that takes advantage of the integrability of the background system to evolve it with a symplectic splitting integrator, and compute approximate gravitational waveforms to estimate the timescale over which the perturbation affects the dynamics. Comparing this timescale with the characteristic time under radiation reaction at resonance, we introduce a tool for quantifying the regime in which tidal effects might be included when modeling EMRI gravitational waves. As an application of this framework, we perform a detailed analysis of the dynamics at one resonance to show how different entry points into the resonance in phase-space can produce substantially different dynamics, and how one can estimate bounds for the parameter space where tidal effects may become dominant. Such bounds will scale as $\varepsilon \gtrsim C \, q$, where $\varepsilon$ measures the strength of the external tidal field, $q$ is the mass ratio, and $C$ is a number which depends on the resonance and the shape of the tide. We demonstrate how to estimate $C$ using our framework for the 2:3 radial to polar frequency resonance in our model system. This framework can serve as a proxy for proper modeling of the tidal perturbation in the fully relativistic case.
description: V2. Updated to match published version
Electron removal energies in noble gas atoms up to 100 keV: ab initio GW vs XPS
Creators: name: Mukatayev, Iskander
name: Sklénard, Benoît
name: Olevano, Valerio
name: Li, Jing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Nuclear Theory (nucl-th)
subject: Atomic Physics (physics.atom-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: X-ray photoelectron spectroscopy (XPS) measures electron removal energies, providing direct access to core and valence electron binding energies, hence probing the electronic structure. In this work, we benchmark for the first time the ab initio many-body GW approximation on the complete electron binding energies of noble gas atoms (He-Rn), which spans 100~keV. Our results demonstrate that GW achieves an accuracy within 1.2% in XPS binding energies, by systematically restoring the underestimation from density-functional theory (DFT, error of 14%) or the overestimation from Hartree-Fock (HF, error of 4.7%). Such results also imply the correlations of $d$ electrons are very well described by GW.
description: 7 pages, 3 figures, 5 tables
Cavity optomagnonics with spin-orbit coupled photons
Creators: name: Osada, A.
name: Hisatomi, R.
name: Noguchi, A.
name: Tabuchi, Y.
name: Yamazaki, R.
name: Usami, K.
name: Sadgrove, M.
name: Yalla, R.
name: Nomura, M.
name: Nakamura, Y.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We experimentally implement a system of cavity optomagnonics, where a sphere of ferromagnetic material supports whispering gallery modes (WGMs) for photons and the magnetostatic mode for magnons. We observe pronounced nonreciprocity and asymmetry in the sideband signals generated by the magnon-induced Brillouin scattering of light. The spin-orbit coupled nature of the WGM photons, their geometric birefringence and the time-reversal symmetry breaking in the magnon dynamics impose the angular-momentum selection rules in the scattering process and account for the observed phenomena. The unique features of the system may find interesting applications at the crossroad between quantum optics and spintronics.
description: 5 pages (4 figures) + supplemental material, accepted by PRL
Direction reversal of non-Hermitian skin effect via coherent coupling
Creators: name: Li, Linhu
name: Teo, Wei Xin
name: Mu, Sen
name: Gong, Jiangbin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Absolute negative mobility (ANM) in nonequilibrium systems depicts the possibility of particles propagating toward the opposite direction of an external force. We uncover in this work a phenomenon analogous to ANM regarding eigenstate localization and particle transport in non-Hermitian systems under the influence of the non-Hermitian skin effect (NHSE). A coherent coupling between two non-Hermitian chains individually possessing the same preferred direction of NHSE is shown to cause a direction reversal of NHSE for all eigenmodes. This concept is further investigated in terms of time evolution dynamics using a non-Hermitian quantum walk platform within reach of current experiments. Our findings are explained both qualitatively and quantitatively. The possible direction reversal of NHSE can potentially lead to interesting applications.
description: 12 pages, 8 figures. Comments are welcome
Chiral asteroseismology: seismic oscillations caused by chiral transport in neutron stars and supernovae
Creators: name: Hanai, Sota
name: Yamamoto, Naoki
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the novel asteroseismology of the chiral magnetic wave (CMW) of the quark number density in relativistic quark matter inside neutron stars and core-collapse supernovae and the chiral vortical wave (CVW) of the neutrino number density in relativistic neutrino matter at the core of supernovae. We call the oscillation modes for these chiral waves the chiral magnetic mode (CM-mode) and chiral vortical mode (CV-mode), respectively. We derive the dispersion relations of these new modes in the presence of the chirality flipping due to the finite quark mass and diffusion. We then estimate the possible frequencies of these modes and amplitudes of the resulting gravitational waves. In particular, since the CM-mode can exist only in quark matter with nearly gapless quarks (such as the two-flavor color superconductivity) for a sufficiently strong magnetic field, corresponding gravitational waves provide a new possible probe for such quark matter and the magnetic field in neutron stars.
description: 25 pages, 2 figures; v3: published version
On the Inhomogeneous Phase of the Chiral Gross-Neveu Model
Creators: name: Ciccone, Riccardo
name: Di Pietro, Lorenzo
name: Serone, Marco
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: There is substantial evidence that the ground state of the 2d chiral Gross-Neveu model, in the presence of a $U(1)$ fermion number chemical potential $μ$ and in the large $N$ limit, is given by a {\it chiral spiral} phase, namely an inhomogeneous phase with a chiral condensate having a spatially periodic phase. We show that the chiral spiral configuration persists at finite $N$ and $T=0$ for any $μ>0$. Our analysis is based on non-abelian bosonization, that relates the model to a $U(N)_1$ WZW model deformed by current-current interactions. In this description the appearance of the inhomogeneous phase is surprisingly simple. We also rederive the phase diagram of the large $N$ chiral Gross-Neveu model via a direct diagrammatic computation, finding agreement with previous results in the literature.
description: 6 pages, one figure; v2: several improvements, matches version accepted by PRL
A colitogenic memory CD4+ T cell population mediates gastrointestinal graft-versus-host disease
Creators: name: Beres, Amy
name: Serody, Jonathan
name: Serody, David A.
name: Drobyski, William R.
name: Williams, Calvin B.
name: Belle, Ludovic
name: Cua, Daniel J.
name: Ballantyne, Christie
name: Taylor, Carolyn
name: Weaver, Casey
name: Vincent, Benjamin
name: Komorowski, Richard
name: Zhu, Fenlu
name: Zhou, Vivian
name: Verbsky, James
name: Haribhai, Dipica
name: Bowman, Eddie
name: Sadekova, Svetlana
name: Agle, Kimberle
name: Chen, Xiao
name: Blumenschein, Wendy
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Damage to the gastrointestinal tract is a major cause of morbidity and mortality in graft-versus-host disease (GVHD) and is attributable to T cell–mediated inflammation. In this work, we identified a unique CD4+ T cell population that constitutively expresses the β2 integrin CD11c and displays a biased central memory phenotype and memory T cell transcriptional profile, innate-like properties, and increased expression of the gut-homing molecules α4β7 and CCR9. Using several complementary murine GVHD models, we determined that adoptive transfer and early accumulation of β2 integrin–expressing CD4+ T cells in the gastrointestinal tract initiated Th1-mediated proinflammatory cytokine production, augmented pathological damage in the colon, and increased mortality. The pathogenic effect of this CD4+ T cell population critically depended on coexpression of the IL-23 receptor, which was required for maximal inflammatory effects. Non–Foxp3-expressing CD4+ T cells produced IL-10, which regulated colonic inflammation and attenuated lethality in the absence of functional CD4+Foxp3+ T cells. Thus, the coordinate expression of CD11c and the IL-23 receptor defines an IL-10–regulated, colitogenic memory CD4+ T cell subset that is poised to initiate inflammation when there is loss of tolerance and breakdown of mucosal barriers.
Trifolium obscurum Savi, Observ. Trifol. Sp.
Creators: name: Peruzzi, Lorenzo
name: Galasso, Gabriele
name: Domina, Gianniantonio
name: Bartolucci, Fabrizio
name: Santangelo, Annalisa
name: Alessandrini, Alessandro
name: Astuti, Giovanni
name: D'Antraccoli, Marco
name: Roma-Marzio, Francesco
name: Ardenghi, Nicola M. G.
name: Barberis, Giuseppina
name: Conti, Fabio
name: Bernardo, Liliana
name: Peccenini, Simonetta
name: Stinca, Adriano
name: Wagensommer, Robert P.
name: Bonari, Gianmaria
name: Iamonico, Duilio
name: Iberite, Mauro
name: Viciani, Daniele
name: Guacchio, Emanuele Del
name: Galdo, Gianpietro Giusso Del
name: Lastrucci, Lorenzo
name: Villani, Mariacristina
name: Brunu, Antonello
name: Magrini, Sara
name: Pistarino, Annalaura
name: Brullo, Salvatore
name: Salmeri, Cristina
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Fabales
Fabaceae
Trifolium
Trifolium obscurum

description: Trifolium obscurum Savi, Observ. Trifol. Sp.: 31(–32, pl. [1] fig. 1). 1810.
 Ind. Loc.:—“San Casciano de’ Bagni” [after typification]. TOS
 Type (lectotype designated by Roma-Marzio et al. 2018: 416):— ITALY. San Casciano de’ Bagni, s.d., Micheli s.n. (PI003927).
 Note:—See extensive discussion in Roma-Marzio et al. (2018) concerning the original material and type localities for this name.
 Compiled by:— M. D’Antraccoli
description: Published as part of Peruzzi, Lorenzo, Galasso, Gabriele, Domina, Gianniantonio, Bartolucci, Fabrizio, Santangelo, Annalisa, Alessandrini, Alessandro, Astuti, Giovanni, D'Antraccoli, Marco, Roma-Marzio, Francesco, Ardenghi, Nicola M. G., Barberis, Giuseppina, Conti, Fabio, Bernardo, Liliana, Peccenini, Simonetta, Stinca, Adriano, Wagensommer, Robert P., Bonari, Gianmaria, Iamonico, Duilio, Iberite, Mauro, Viciani, Daniele, Guacchio, Emanuele Del, Galdo, Gianpietro Giusso Del, Lastrucci, Lorenzo, Villani, Mariacristina, Brunu, Antonello, Magrini, Sara, Pistarino, Annalaura, Brullo, Salvatore & Salmeri, Cristina, 2019, An inventory of the names of native, non-endemic vascular plants described from Italy, their loci classici and types, pp. 1-215 in Phytotaxa 410 (1) on page 173, DOI: 10.11646/phytotaxa.410.1.1, http://zenodo.org/record/13716045
From graphs to DAGs: a low-complexity model and a scalable algorithm
Creators: name: Dong, Shuyu
name: Sebag, Michèle
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Learning directed acyclic graphs (DAGs) is long known a critical challenge at the core of probabilistic and causal modeling. The NoTears approach of (Zheng et al., 2018), through a differentiable function involving the matrix exponential trace $\mathrm{tr}(\exp(\cdot))$, opens up a way to learning DAGs via continuous optimization, though with a $O(d^3)$ complexity in the number $d$ of nodes. This paper presents a low-complexity model, called LoRAM for Low-Rank Additive Model, which combines low-rank matrix factorization with a sparsification mechanism for the continuous optimization of DAGs. The main contribution of the approach lies in an efficient gradient approximation method leveraging the low-rank property of the model, and its straightforward application to the computation of projections from graph matrices onto the DAG matrix space. The proposed method achieves a reduction from a cubic complexity to quadratic complexity while handling the same DAG characteristic function as NoTears, and scales easily up to thousands of nodes for the projection problem. The experiments show that the LoRAM achieves efficiency gains of orders of magnitude compared to the state-of-the-art at the expense of a very moderate accuracy loss in the considered range of sparse matrices, and with a low sensitivity to the rank choice of the model's low-rank component.
Transcriptome data of 10-dpf-old foxp2 gene knockout zebrafish and wild-type zebrafish
Creators: name: 张剑南(Jiannan Zhang)
Publisher: name: CNGB
Year: 2023
Subjects: Raw sequence reads
Monoisolate

description: In order to further understand the molecular mechanism of the effect of foxp2 gene knockout on zebrafish, we performed the RNA-seq of 10-dpf-old foxp2 gene knockout zebrafish and wild-type zebrafish, with three biological replications.
Generalized Calogero-Sutherland models for Kondo physics in the Luttinger liquid
Creators: name: Zhang, Hua-Chen
name: Wu, Ying-Hai
name: Tu, Hong-Hao
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose a series of models with inverse-square interactions, for which the ground states have an exact closed form, that describe one localized spin-$1/2$ Kondo impurity coupled to Luttinger liquids of itinerant bosons or fermions in the continuum or on a lattice. The model Hamiltonians contain two parts: a two-component Calogero-Sutherland model with open boundary condition in the continuum or a long-range $t \textendash J$-type model on the lattice, and long-range Kondo couplings between the impurity and the particles. The wave functions of the ground states in a certain basis have Jastrow product forms with powers depending on the particle statistics. It is shown that the wave functions can be expressed as chiral correlators of certain conformal field theories, which reveals that the particles are fractionalized to fully screen the Kondo impurity. This insight would be very useful in future studies on the very difficult problem of Kondo physics with interacting baths.
description: (5.5 + 12.5) pages, (2 + 2) figures, published version
Die Entdeckung und der Schmuggel des „Priamos-Schatzes“ von Hisarlık (Troia) nach Athen anhand osmanischer Quellen
Creators: name: Aslan, Rüstem
name: Sönmez, Ali
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Archäologie , Vor- und Frühgeschichte , Forschungsgeschichte , Troja , Türkei
subject: 930
subject: Schatz des Priamos
subject: prehistory
subject: archaeology
subject: history of research
subject: Turkey
subject: Troy
subject: Priam's Treasure

description: Über Schliemanns Ausgrabungen inHisarlık wurde sowohl während seiner Lebenszeit als auch nach seinem plötzlichen Tod im Jahre 1890 in Neapel viel geschrieben und diskutiert. Besonders über den „Schatz des Priamos“ folgte nach Schliemanns erstem Bericht am 5. August 1873 in der „Augsburger Allgemeinen Zeitung“ eine rege Auseinandersetzung. Hauptsächlich konzentrierte sich die Diskussion dabei auf folgende Themen: Wann, wie und wo fand Schliemann den Schatz? Und wie schmuggelte er ihn später außer Landes? Handelte es sich um einen Hortfund oder wurde er aus verschiedenen Fundgruppen von Schliemann nachträglich zusammengestellt? Um diese Fragen zu beantworten, wurde bislang vor allem das Schliemann-Archiv in Athen konsultiert. Mit Hilfe bislang unbekannt gebliebener osmanischer Dokumente soll hier die Fundgeschichte des „Priamos-Schatzes“ aus neuer Perspektive betrachtet werden.
description: Schliemann’s excavation at Hisarlik inspired as much writing and discussion during his lifetime as it did after his sudden death in Naples in 1890. In particular, a lively debate followed Schliemann’s initial report on August 5, 1873, in the Augsburger Allgemeine Zeitung on the “Treasure of Priam”. Discussion focused on the following topics: When, how and where did Schliemann find the treasure? How did he smuggle it out of the country? Was it a hoard or was it compiled from various groups of Schliemann’s previous finds? To answer these questions, mainly the Schliemann Archive in Athens was consulted. Until now, Ottoman documents have remained almost unnoticed. With the help of these previously unknown documents, the history of the discovery of “Priam’s Treasure” can be understood from a new perspective.
title: Die Bedeutung des Lymphozyten-Transkriptionsfaktors Interferon regulierender Faktor 4 in der Entstehung von präB Zell Leukämien der Maus
title: The role of the lymphocyte transcription factor interferon regulatory factor 4 in the development of preB cell leukemia in mice
titleType: AlternativeTitle
Creators: name: Das Gupta, Dennis
Publisher: name: Philipps-Universität Marburg
Year: 2022
Subjects: Medical sciences Medicine
Medizin

description: Die Entwicklung der B-Zellen im Knochenmark erfolgt unter fein-dirigierter zell-intrinsischer und extrinsischer Kontrolle. Veränderungen dieser Kontrollmechanismen bergen die Gefahr einer Entartung von Stamm- und Progenitorzellen im Sinne einer akuten lymphoblastischen B Zell Progenitor Leukämie. Ziel der vorliegenden Arbeit war es, die Ursachen einer spontan entstehenden leukämischen Erkrankung in Irf4–/– Mäusen zu charakterisieren. Zunächst wurden die präleukämischen Veränderungen der Irf4–/– B-Zell Entwicklung untersucht. Zentral zeigten sich eine eingeschränkte Differenzierung von Progenitorzellen jenseits des präBZRcheckpoints, sowie eine Reduktion der Knochen-marksadhärenz durch eingeschränkte Sensitivität für den chemotaktischen Faktor CXCL12. Zudem wurde die ektope Expression des mutagenen Enzymes AID beobachtet. Irf4–/– Leukämien zeichneten sich durch rekurrierende somatische Jak3 Mutationen aus. Diese bewirkten eine erhöhte IL-7 Sensitivität, jedoch keine vollständige Zytokin-Unabhängigkeit der Leukämiezellen. Eine Behandlung von Mäusen mit Irf4–/– Leukämien mit dem JAK-Inhibitor Ruxolitinib ergab eine präferenzielle Wirkung auf die Infiltration von soliden Organen durch Leukämiezellen, ohne eine systemische Wirkung auf die Leukämielast im Blut oder im Knochenmark. Von translationaler Bedeutung ist hierbei die Verringerung einer meningeosis leukaemica, die sich klinisch an einer Reduktion von Lähmungssymptomen im Mausmodell zeigte. Der Vergleich der so charakterisierten Irf4–/– Leukämie mit dem menschlichen Krankheitsspektrum ergab eine große Ähnlichkeit mit der BCP-ALL Subform der Ph-like ALL. Da bei dieser Erkrankung bislang wenig bekannt ist über die Pathomechanik ihrer Entstehung, sind die in der vorliegenden Arbeit dargelegten Hinweise aus dem Mausmodell von hoher Relevanz für das Krankheitsverständnis. In einem zweiten Teil der Arbeit wurden Techniken der Transkriptionsfaktor-Überexpression genutzt, um durch Re-Expression von FoxP3 die Reversibilität verringerter suppressiver Kapazitäten von mutierten Tregs zu untersuchen.
Valeriana saliunca All., Fl. Pedem.
Creators: name: Peruzzi, Lorenzo
name: Galasso, Gabriele
name: Domina, Gianniantonio
name: Bartolucci, Fabrizio
name: Santangelo, Annalisa
name: Alessandrini, Alessandro
name: Astuti, Giovanni
name: D'Antraccoli, Marco
name: Roma-Marzio, Francesco
name: Ardenghi, Nicola M. G.
name: Barberis, Giuseppina
name: Conti, Fabio
name: Bernardo, Liliana
name: Peccenini, Simonetta
name: Stinca, Adriano
name: Wagensommer, Robert P.
name: Bonari, Gianmaria
name: Iamonico, Duilio
name: Iberite, Mauro
name: Viciani, Daniele
name: Guacchio, Emanuele Del
name: Galdo, Gianpietro Giusso Del
name: Lastrucci, Lorenzo
name: Villani, Mariacristina
name: Brunu, Antonello
name: Magrini, Sara
name: Pistarino, Annalaura
name: Brullo, Salvatore
name: Salmeri, Cristina
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Dipsacales
Caprifoliaceae
Valeriana
Valeriana saliunca

description: Valeriana saliunca All., Fl. Pedem. 1: 3 (3: 11, pl. 70 fig. 1). 1785. [April–July 1785]
 Ind. Loc.:—“In editis jugis vento perflatis non procul a jugo Sestrieres, & supra Cesana ad juga le Collet & les Clavieres”. PIE
 Type:—Not designated.
 Compiled by:— A. Alessandrini
description: Published as part of Peruzzi, Lorenzo, Galasso, Gabriele, Domina, Gianniantonio, Bartolucci, Fabrizio, Santangelo, Annalisa, Alessandrini, Alessandro, Astuti, Giovanni, D'Antraccoli, Marco, Roma-Marzio, Francesco, Ardenghi, Nicola M. G., Barberis, Giuseppina, Conti, Fabio, Bernardo, Liliana, Peccenini, Simonetta, Stinca, Adriano, Wagensommer, Robert P., Bonari, Gianmaria, Iamonico, Duilio, Iberite, Mauro, Viciani, Daniele, Guacchio, Emanuele Del, Galdo, Gianpietro Giusso Del, Lastrucci, Lorenzo, Villani, Mariacristina, Brunu, Antonello, Magrini, Sara, Pistarino, Annalaura, Brullo, Salvatore & Salmeri, Cristina, 2019, An inventory of the names of native, non-endemic vascular plants described from Italy, their loci classici and types, pp. 1-215 in Phytotaxa 410 (1) on page 177, DOI: 10.11646/phytotaxa.410.1.1, http://zenodo.org/record/13716045
Elemental Identification of Artifacts and Pigments from Ancient Ilion with X-ray Fluorescence
Creators: name: Aylward, William
name: Marx, William
name: Strahan, Donna
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Archäometrie , Klassische Archäologie , Troja , Türkei
subject: 930
subject: archaeometry
subject: Classical archaeology
subject: Troy
subject: Turkey

description: This article presents the results of exploratory research at Troia in 2009, when questions about elemental identification in metalwork, decorated terracotta figurines and plaques, and painted wall and ceiling plaster were addressed with a Bruker Tracer IV portable X-ray fluorescence instrument. Artifacts sampled were found in excavations since 1988 across all parts of Ilion’s Greek, Roman and Byzantine phases. Principal research questions involved the value of elemental analysis for exposing details of manufacture and technique, for facilitating the dating of artifacts, and for distinguishing local products from imported ones. The data generated by this study also allows for preliminary comparison of Ilion’s corpus of metalwork against trends in the composition of ancient metalwork across the ancient Mediterranean and Near East. Elemental identification of pigments on painted plaster included both wall and ceiling decoration from Hellenistic and Roman buildings at Ilion. Principal research questions involved the value of elemental analysis for revealing the ingredients in pigments used by the wall- and ceiling-painters, and for identifying variation in pigments across place and time in the topography of Ilion. Overall, results reveal the value of exploratory research for capturing and distilling data for similar classes of artifacts in the life of an ancient city, and for formulating questions for future research.
description: Dieser Artikel stellt die Ergebnisse der 2009 in Troia mit Hilfe eines tragbaren Bruker Tracer IV-Röntgenfluoreszenzgerätes durchgeführten Untersuchungen zur Identifizierung der Elemente in Metallartefakten, verzierten figürlichen Terrakotten und Tontäfelchen sowie bemaltem Wand- und Deckenverputz vor. Die dabei untersuchten Gegenstände wurden seit Grabungsbeginn 1988 in allen Bereichen des griechischen, römischen und byzantinischen Ilion gefunden. Das Hauptforschungsfrage richtete sich nach dem Nutzen der chemischen Elementanalyse zur Gewinnung von Informationen über Herstellungsprozess und Techniken, zur möglichen Datierung, zur Unterscheidung lokaler Produkte gegenüber Importen. Die gewonnenen Ergebnisse dieser Studie erlauben einen vorläufigen Vergleich des Bestandes an Metallobjekten in Ilion gegenüber der Zusammensetzung anderer Bestände im Mittelmeerraum und Vorderen Orient. Die chemische Bestimmung der Farbpigmente auf bemaltem Verputz bezieht sich auf die Wand- und Deckenmalerei hellenistischer und römischer Bauten in Ilion. Die Resultate zeigen den Wert naturwissenschaftlicher Forschung bei der Gewinnung und Aufbereitung von Daten ähnlicher Objektklassen, die im Leben einer antiken Stadt eine Rolle spielten. Sie ermöglichen auch die Formulierung künftiger Forschungsfragen.
The short-term effect of COVID-19 pandemic on China's crude oil futures market: A study based on multifractal analysis
Creators: name: Ying-Hui, Shao
name: Ying-Lin, Liu
name: Yan-Hong, Yang
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Finance (q-fin.CP)
subject: FOS: Economics and business

description: The ongoing COVID-19 shocked financial markets globally, including China's crude oil future market, which is the third most traded crude oil futures after WTI and Brent. As China's first crude oil futures accessible to foreign investors, the Shanghai crude oil futures (SC) have attracted significant interest since launch at the Shanghai International Energy Exchange. The impact of COVID-19 on the new crude oil futures is an important issue for investors and policy makers. Therefore this paper studies the short-term influence of COVID-19 pandemic on SC via multifractal analysis. We compare market efficiency of SC before and during the pandemic with the multifractal detrended fluctuation analysis and other commonly-used random walk tests. Then we generate shuffled and surrogate data to investigate the components of multifractal nature in SC. And we examine cross-correlations between SC returns and other financial assets returns as well as SC trading volume changes by the multifractal detrended cross-correlation analysis. The results show that market efficiency of SC and its cross-correlations with other assets increase significantly after the outbreak of COVID-19. Besides that, the sources of its multifractal nature have changed since the pandemic. The findings provide evidence for the short-term impacts of COVID-19 on SC. The results may have important implications for assets allocation, investment strategies and risk monitoring.
description: 11 pages,3 figures
Chess players' fame versus their merit
Creators: name: Simkin, M. V.
name: Roychowdhury, V. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computers and Society (cs.CY)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We investigate a pool of international chess title holders born between 1901 and 1943. Using Elo ratings we compute for every player his expected score in a game with a randomly selected player from the pool. We use this figure as player's merit. We measure players' fame as the number of Google hits. The correlation between fame and merit is 0.38. At the same time the correlation between the logarithm of fame and merit is 0.61. This suggests that fame grows exponentially with merit.
description: To appear in Applied Economics Letters
ART influences HIV persistence in the female reproductive tract and cervicovaginal secretions
Creators: name: Richardson, Amy
name: Long, Julie M.
name: Kovarova, Martina
name: Garcia, J. Victor
name: Hudgens, Michael G.
name: Nochi, Tomonori
name: Denton, Paul W.
name: Honeycutt, Jenna B.
name: Tolstrup, Martin
name: Olesen, Rikke
name: Wahl, Angela
name: Østergaard, Lars
name: Swanson, Michael D.
name: Chateau, Morgan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The recently completed HIV prevention trials network study 052 is a landmark collaboration demonstrating that HIV transmission in discordant couples can be dramatically reduced by treating the infected individual with antiretroviral therapy (ART). However, the cellular and virological events that occur in the female reproductive tract (FRT) during ART that result in such a drastic decrease in transmission were not studied and remain unknown. Here, we implemented an in vivo model of ART in BM/liver/thymus (BLT) humanized mice in order to better understand the ability of ART to prevent secondary HIV transmission. We demonstrated that the entire FRT of BLT mice is reconstituted with human CD4+ cells that are shed into cervicovaginal secretions (CVS). A high percentage of the CD4+ T cells in the FRT and CVS expressed CCR5 and therefore are potential HIV target cells. Infection with HIV increased the numbers of CD4+ and CD8+ T cells in CVS of BLT mice. Furthermore, HIV was present in CVS during infection. Finally, we evaluated the effect of ART on HIV levels in the FRT and CVS and demonstrated that ART can efficiently suppress cell-free HIV-RNA in CVS, despite residual levels of HIV-RNA+ cells in both the FRT and CVS.
Archäologische Untersuchungen zur voreisenzeitlichen Kultursequenz des Bozköy-Hanaytepe, Nordwesttürkei
Creators: name: Blum, Stephan W. E.
name: Aslan, Rüstem
name: Uysal, Faika Evrim
name: Kirschner, Sebastian
name: Kraus, Steffen
Publisher: name: Universität Tübingen
Year: 2019
Subjects: subject: Archäologie , Vor- und Frühgeschichte , Chalkolithikum , Bronzezeit , Türkei
subject: 930
subject: archaeology
subject: prehistory
subject: Chalcolithic
subject: Early Bronze Age
subject: Turkey

description: Trotz langjähriger und vergleichsweise intensiver Erforschung ist der archäologische Kenntnisstand vor allem im Hinblick auf die verschiedenen voreisenzeitlichen Kulturabschnitte der im Nordwesten der Türkei gelegenen Siedlungslandschaft Troas in mehreren, teils wesentlichen Aspekten noch immer stark begrenzt. Nur wenige der größtenteils allein über unstratifizierte Oberflächenfunde bekannten Siedlungsplätze im Umfeld von Hisarlık/Troia, dem vermutlichen „Zentralort“ der Region in prähistorischer Zeit, sind systematisch erschlossen oder aufgrund ihres Erhaltungszustands in der Lage dazu, den für eine chronologische und kulturhistorische Bewertung der Siedlungslandschaft mithin relevanten Fragenstellungen in adäquater Weise nachzukommen. Eine Ausnahme stellt in diesem Zusammenhang der rund 13 km südlich von Troia gelegene Bozköy-Hanaytepe dar, ein knapp 12 m hoher, am Ufer einer früheren, heute jedoch vollständig verlandeten Meeresbucht gelegener Siedlungshügel; seit seiner erste schriftlichen Erwähnung im Jahr 1910 von der archäologischen Forschung unbeachtet, konnte dieser im Rahmen einer im September 2009 durchgeführten Surveykampagne zeitlich im späten Chalkolithikum sowie der frühen, der ausgehenden mittleren und in der späten Bronzezeit verortet werden.
description: Despite intensive investigation over many years, our archaeological knowledge of the settlement landscape of the Troad in north-western Turkey is in some respects still very limited, sometimes even on key points. This is particularly the case with the various cultural periods which preceded the Iron Age. Most settlement sites in the territory surrounding Hisarlık/Troy – the supposed “central place” of the region – are known only from unstratified finds. Many questions, therefore, arise when one attempts an assessment of the chronology and cultural history of the settlement landscape. Few sites have been systematically explored or are sufficiently well preserved to furnish adequate answers. One exception is the settlement mound of Hanaytepe near Bozköy. This 12 m-high site lies c.13 km to the south of Troy on the shore of a former marine bay, now completely silted up. First mentioned in the literature in 1910, the site has since passed unnoticed by archaeological research. In the course of a survey carried out in September 2009, however, it proved possible to locate it chronologically in the Late Chalcolithic, the Early Bronze Age, the final phases of the Middle Bronze Age and in the Late Bronze Age.
EndoMapper dataset of complete calibrated endoscopy procedures
Creators: name: Azagra, Pablo
name: Sostres, Carlos
name: Ferrandez, Ángel
name: Riazuelo, Luis
name: Tomasini, Clara
name: Barbed, Oscar León
name: Morlana, Javier
name: Recasens, David
name: Batlle, Victor M.
name: Gómez-Rodríguez, Juan J.
name: Elvira, Richard
name: López, Julia
name: Oriol, Cristina
name: Civera, Javier
name: Tardós, Juan D.
name: Murillo, Ana Cristina
name: Lanas, Angel
name: Montiel, José M. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Image and Video Processing (eess.IV)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Computer-assisted systems are becoming broadly used in medicine. In endoscopy, most research focuses on the automatic detection of polyps or other pathologies, but localization and navigation of the endoscope are completely performed manually by physicians. To broaden this research and bring spatial Artificial Intelligence to endoscopies, data from complete procedures is needed. This paper introduces the Endomapper dataset, the first collection of complete endoscopy sequences acquired during regular medical practice, making secondary use of medical data. Its main purpose is to facilitate the development and evaluation of Visual Simultaneous Localization and Mapping (VSLAM) methods in real endoscopy data. The dataset contains more than 24 hours of video. It is the first endoscopic dataset that includes endoscope calibration as well as the original calibration videos. Meta-data and annotations associated with the dataset vary from the anatomical landmarks, procedure labeling, segmentations, reconstructions, simulated sequences with ground truth and same patient procedures. The software used in this paper is publicly available.
description: 17 pages, 14 figures, 8 tables
DFT-FE 1.0: A massively parallel hybrid CPU-GPU density functional theory code using finite-element discretization
Creators: name: Das, Sambit
name: Motamarri, Phani
name: Subramanian, Vishal
name: Rogers, David M.
name: Gavini, Vikram
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present DFT-FE 1.0, building on DFT-FE 0.6 [Comput. Phys. Commun. 246, 106853 (2020)], to conduct fast and accurate large-scale density functional theory (DFT) calculations (reaching ~ $100,000$ electrons) on both many-core CPU and hybrid CPU-GPU computing architectures. This work involves improvements in the real-space formulation -- via an improved treatment of the electrostatic interactions that substantially enhances the computational efficiency -- as well high-performance computing aspects, including the GPU acceleration of all the key compute kernels in DFT-FE. We demonstrate the accuracy by comparing the ground-state energies, ionic forces and cell stresses on a wide-range of benchmark systems against those obtained from widely used DFT codes. Further, we demonstrate the numerical efficiency of our implementation, which yields $\sim 20 \times$ CPU-GPU speed-up by using GPU acceleration on hybrid CPU-GPU nodes. Notably, owing to the parallel-scaling of the GPU implementation, we obtain wall-times of $80-140$ seconds for full ground-state calculations, with stringent accuracy, on benchmark systems containing ~ $6,000-15,000$ electrons.
description: 55 pages, 7 figures, 7 Tables
Exploring the Role of Globular Cluster Specific Frequency on the Nova Rates in Three Virgo Elliptical Galaxies
Creators: name: Curtin, C.
name: Shafter, A. W.
name: Pritchet, C. J.
name: Neill, J. D.
name: Kundu, A.
name: Maccarone, T. J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It has been proposed that a galaxy's nova rate might be enhanced by the production of nova progenitor binaries in the dense cores of its globular clusters (GCs). To explore this idea, relative nova rates in three Virgo elliptical galaxies, M87, M49 and M84, which have significantly different GC specific frequencies ($S_{N}$) of 14, 3.6, and 1.6, respectively, were measured over the course of 4 epochs spanning a period of 14 months. To simplify the analysis, observations of the nearly equidistant galaxies were made on the same nights, with the same integration times, and through the same filter (H$α$), so that the relative numbers of novae discovered would reflect the relative nova rates. At the conclusion of our survey we found a total of 27 novae associated with M87, 37 with M49, and 19 with M84. After correcting for survey completeness, we found annual nova rates of $154^{+23}_{-19}$, $189^{+26}_{-22}$, and $95^{+15}_{-14}$, for M87, M49, and M84, respectively, corresponding to $K$-band luminosity-specific nova rates of $3.8\pm1.0$, $3.4\pm0.6$, and $3.0\pm0.6$ novae per year per $10^{10}~L_{K,\odot}$. The overall results of our study suggest that a galaxy's nova rate simply scales with its luminosity, and is insensitive to its GC specific frequency. Two novae, one in M87 and one in M84, were found to be spatially coincident with known GCs. After correcting for the mass fraction in GCs, we estimate that novae are likely enhanced relative to the field by at least an order of magnitude in the GC systems of luminous Virgo ellipticals.
description: Accepted for publication in The Astrophysical Journal - 11 pages, 6 figures
CSI-fingerprinting Indoor Localization via Attention-Augmented Residual Convolutional Neural Network
Creators: name: Zhang, Bowen
name: Sifaou, Houssem
name: Li, Geoffrey Ye
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Deep learning has been widely adopted for channel state information (CSI)-fingerprinting indoor localization systems. These systems usually consist of two main parts, i.e., a positioning network that learns the mapping from high-dimensional CSI to physical locations and a tracking system that utilizes historical CSI to reduce the positioning error. This paper presents a new localization system with high accuracy and generality. On the one hand, the receptive field of the existing convolutional neural network (CNN)-based positioning networks is limited, restricting their performance as useful information in CSI is not explored thoroughly. As a solution, we propose a novel attention-augmented residual CNN to utilize the local information and global context in CSI exhaustively. On the other hand, considering the generality of a tracking system, we decouple the tracking system from the CSI environments so that one tracking system for all environments becomes possible. Specifically, we remodel the tracking problem as a denoising task and solve it with deep trajectory prior. Furthermore, we investigate how the precision difference of inertial measurement units will adversely affect the tracking performance and adopt plug-and-play to solve the precision difference problem. Experiments show the superiority of our methods over existing approaches in performance and generality improvement.
description: 32 pages, Added references in section 2,3; Added explanations for some academic terms; Corrected typos; Added experiments in section 5, previous results unchanged; is under review for possible publication
Blocking type I interferon signaling enhances T cell recovery and reduces HIV-1 reservoirs
Creators: name: Li, Jingyun
name: Yasui, Fumihiko
name: Ye, Chaobaihui
name: Ma, Jianping
name: Li, Dan
name: Yu, Haisheng
name: Li, Feng
name: Li, Guangming
name: Zhang, Qing
name: Su, Lishan
name: Tsao, Li-Chung
name: Cheng, Liang
name: Hu, Zhiyuan
name: Zhang, Liguo
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Despite the efficient suppression of HIV-1 replication that can be achieved with combined antiretroviral therapy (cART), low levels of type I interferon (IFN-I) signaling persist in some individuals. This sustained signaling may impede immune recovery and foster viral persistence. Here we report studies using a monoclonal antibody to block IFN-α/β receptor (IFNAR) signaling in humanized mice (hu-mice) that were persistently infected with HIV-1. We discovered that effective cART restored the number of human immune cells in HIV-1–infected hu-mice but did not rescue their immune hyperactivation and dysfunction. IFNAR blockade fully reversed HIV-1–induced immune hyperactivation and rescued anti–HIV-1 immune responses in T cells from HIV-1–infected hu-mice. Finally, we found that IFNAR blockade in the presence of cART reduced the size of HIV-1 reservoirs in lymphoid tissues and delayed HIV-1 rebound after cART cessation in the HIV-1–infected hu-mice. We conclude that low levels of IFN-I signaling contribute to HIV-1–associated immune dysfunction and foster HIV-1 persistence in cART-treated hosts. Our results suggest that blocking IFNAR may provide a potential strategy to enhance immune recovery and reduce HIV-1 reservoirs in individuals with sustained elevations in IFN-I signaling during suppressive cART.
Threshold resummation at N$^{3}$LL accuracy and approximate N$^{3}$LO corrections to semi-inclusive DIS
Creators: name: Abele, Maurizio
name: de Florian, Daniel
name: Vogelsang, Werner
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We advance the threshold resummation formalism for semi-inclusive deep-inelastic scattering (SIDIS) to next-to-next-to-next-to-leading logarithmic (N$^{3}$LL) order, including the three-loop hard factor. We expand the results in the strong coupling to obtain approximate next-to-next-to-next-to-leading order (N$^{3}$LO) corrections for the SIDIS cross section. In Mellin moment space, these corrections include all terms that are logarithmically enhanced at threshold, or that are constant. We also consider a set of corrections that are suppressed near threshold. Our numerical estimates show modest changes of the cross section by the approximate N$^{3}$LO terms, suggesting a very good perturbative stability of the SIDIS process.
description: 25 pages, 2 figures
Interplay between Mach cone and radial expansion and its signal in $γ$-jet events
Creators: name: Tachibana, Yasuki
name: Hirano, Tetsufumi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: We study the hydrodynamic response to jet quenching in expanding quark-gluon plasma (QGP) and its signal in the resulting particle distribution. The ideal hydrodynamic simulations of the $γ$-jet events in heavy-ion collisions are performed in a full (3 + 1)-dimensional setup. The jet-induced Mach cone and the radial expansion of the background mutually push and distort each other. As a result, the particle emission is suppressed in the direction in which the radial flow is pushed back by the Mach cone when the jet path is an off-central one. This is the direct signal of hydrodynamic response to the jetand, moreover, includes information about the jet path in the expanding QGP fluid.
description: 12 pages 10 figures; published in Physical Review C
title: Professional grow plans and teacher learning
Creators: name: Spencer-Dahl, Denise
Publisher: name: Electronic version published by Vancouver Island University
Year: 2014
Subjects: subject: Career development

description: Teacher self-efficacy beliefs and shared and supportive leadership practices were quantified in this study and correlated with attitudes towards the purpose of Professional Growth Plans. A paper based survey instrument was used to collect the data from participating teachers employed in School District 69 (Qualicum). Two hundred teachers were invited to be part of the study of which 88 participants completed the survey. It was hypothesized that teacher self-efficacy and perceived shared and supportive leadership behaviours would impact a teacher’s attitude towards adopting a Professional Grow Plan as a tool for student and teacher learning. This study found no correlations existed between teacher self-efficacy and perceived shared and supportive leadership practices. Qualitative and quantitative analysis of the teachers’ beliefs about the proposed purpose of Professional Grow Plans indicated that they should be personal in nature and not be required to align with school, district or Ministry goals. There was a bimodal distribution of whether Professional Grow Plans should be used as a component of teacher evaluations. Further research is needed to determine if Professional Grow Plans should be pursued as a framework to guide funding and future professional development initiatives in School District 69 (Qualicum).
Fractal Interpolation over Nonlinear Partitions
Creators: name: Massopust, Peter R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 28A80, 37L30, 46B25, 46E30

description: This paper introduces the fractal interpolation problem defined over domains with a nonlinear partition. This setting generalizes known methodologies regarding fractal functions and provides a new holistic approach to fractal interpolation. In this context, perturbations of nonlinear partition functions are considered and sufficient conditions for the existence of a unique solution of the underlying fractal interpolation problem for some classes of function spaces are given.