cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A new free-floating planet in the Upper Scorpius association
Creators: name: Ramírez, K. Peña
name: Béjar, V. J. S.
name: Osorio, M. R. Zapatero
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report on a deep photometric survey covering an area of 1.17 deg$^2$ in the young Upper Scorpius stellar association using VIMOS $Iz$ and UKIDSS $ZJHK$ data taking several years apart. The search for the least massive population of Upper Scorpius ($\sim$5-10 Myr, 145 pc) is performed on the basis of various optical and infrared color-color and color-magnitude diagrams, including WISE photometry, in the magnitude interval $J$=14.5-19 mag (completeness), which corresponds to substellar masses from 0.028 through 0.004 M$_\odot$ at the age and distance of Upper Scorpius. We also present the proper motion analysis of the photometric candidates, finding that two objects successfully pass all photometric and astrometric criteria for membership in the young stellar association. One of them, UScoJ155150.2$-$213457, is a new discovery. We obtained low resolution, near-infrared spectroscopy ($R\sim$450, 0.85--2.35 $μ$m) of this new finding using the FIRE instrument. We confirmed its low-gravity atmosphere expected for an Upper Scorpius member (weak alkaline lines, strong VO absorption, peaked $H$-band pseudocontinuum). By comparison with spectroscopic standards, we derive a spectral type of L6$\pm$1, and estimate a mass of $\approx$0.008-0.010 M$_\odot$ for UScoJ155150.2$-$213457. The colors and spectral slope of this object resemble those of other young, cool members of Upper Scorpius and $σ$ Orionis ($\sim$3 Myr) and field, high gravity dwarfs of related classification in contrast with the very red indices of field, low gravity, L-type dwarfs of intermediate age. UScoJ155150.2$-$213457, which does not show infrared flux excesses up to 4.5 $μ$m, becomes one of the least massive and latest type objects known in the entire Upper Scorpius stellar association.
description: 12 pages, 8 figures. Accepted for publication in A&A
Development of hydrogen isotope exchange methodologies for the deuteration of aromatic substrates
Creators: name: Kopf, Sara
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 540 Chemistry & allied sciences

description: This thesis entails the development of practical and cost-efficient deuteration methodologies. The first C–H activation and deuteration of aromatic substrates using an earth-abundant manganese catalyst and transient directing groups was reported. Secondly, the transient directing group strategy was transferred to a ruthenium-catalyzed hydrogen isotope exchange reaction. Lastly, the electronic characteristics of pyridine derivatives were harnessed for a transition metal-free deuteration protocol. The results are expected to inspire future developments in sustainable hydrogen isotope exchange.
Methodologies and MR Parameters in Quantitative Magnetic Resonance Neurography: A Scoping Review
Creators: name: Balsiger, Fabian
name: Jende, Johann
name: Marty, Benjamin
name: Bendszus, Martin
name: Scheidegger, Olivier
name: Kurz, Felix
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Physical Sciences and Mathematics
subject: Medicine and Health Sciences
subject: Engineering
subject: Magnetic resonance imaging
subject: Magnetic resonance neurography
subject: peripheral nerve
subject: quantitative
subject: Scoping review
subject: Scoping review protocol

description: Background: Magnetic resonance neurography (MRN), the MR imaging of peripheral nerves, is clinically used for assessing and monitoring peripheral neuropathies based on qualitative, weighted MR imaging. Recently, quantitative MRN is increasingly being reported with various MR parameters as potential biomarkers. An evidence synthesis mapping the available methodologies and normative values of quantitative MRN of human peripheral nerves, independent of the anatomical location and type of neuropathy, is currently unavailable and would likely benefit this young field of research. Methods: The review will include peer-reviewed literature describing methodologies or normative values of quantitative MRN of human peripheral nerves. The literature search will include the databases MEDLINE (PubMed), EMBASE (Ovid), Web of Science, and Scopus. At least two independent reviewers will screen the titles and abstracts against the inclusion criteria. Potential studies will then be screened in full against the inclusion criteria by two or more independent reviewers. From all eligible studies, data will be extracted by two or more independent reviewers and presented in a diagrammatic or tabular form, separated by MR parameter and accompanied by a narrative summary. The reporting will follow the guidelines of the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for scoping reviews (PRISMA-ScR). Discussion: An evidence synthesis mapping of the available methodologies and normative values of quantitative MRN of human peripheral nerves is currently unavailable. The objective of this scoping review is to consolidate the characteristics and ranges of methodologies and measured values of quantitative MR imaging of the human peripheral nerves, termed MRN. The review will provide a map of the available literature, identify possible gaps, and inform on possible future research.
Orthogonal polynomials, reproducing kernels, and zeros of optimal approximants
Creators: name: Bénéteau, Catherine
name: Khavinson, Dmitry
name: Liaw, Constanze
name: Seco, Daniel
name: Sola, Alan A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We study connections between orthogonal polynomials, reproducing kernel functions, and polynomials $p$ minimizing Dirichlet-type norms $\|pf-1\|_α$ for a given function $f$. For $α\in [0,1]$ (which includes the Hardy and Dirichlet spaces of the disk) and general $f$, we show that such extremal polynomials are non-vanishing in the closed unit disk. For negative $α$, the weighted Bergman space case, the extremal polynomials are non-vanishing on a disk of strictly smaller radius, and zeros can move inside the unit disk. We also explain how $\mathrm{dist}_{D_α}(1,f\cdot \mathcal{P}_n)$, where $\mathcal{P}_n$ is the space of polynomials of degree at most $n$, can be expressed in terms of quantities associated with orthogonal polynomials and kernels, and we discuss methods for computing the quantities in question.
description: 22 pages, 4 figures. Submitted for publication
Fano resonance scattering in waveguide with an impedance boundary condition
Creators: name: Xiong, Lei
name: Bi, Wenping
name: Aurégan, Yves
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: Sound propagation in a waveguide lined with one section of locally reactive material is studied by resonance scattering approach. The objective is to understand the effects of mode coupling in the lined section on the transmission. It is shown that a transmission zero is present in the vicinity of a resonance peak when a numerically real resonance frequency of the open lined section (opened to infinities through the rigid parts of the waveguide) is crossed. The transmission zero and immediate resonance peak form a Fano resonance, it has been explained as an interaction between a resonance and the non-resonant background. The real resonance frequency and its corresponding trapped mode are formed by the interferences (couplings) between two neighbor modes with complex resonance frequencies. It is also linked to the avoided crossing of eigenvalues and the exceptional point. The scattering matrix is expressed in terms of a matrix $\mathsf{H_{eff}}$ which describes approximately the complex resonances in the open lined section. With the aid of the eigenvalues and eigenfunctions of matrix $\mathsf{H_{eff}}$, the traditional acoustic resonance scattering formula can be extended to describe the coupling effects between the open lined section and the rigid parts of the waveguide.
Structural Dependence of the Molecular Mobility in the Amorphous Fractions of Polylactide
Creators: name: Delpouve, Nicolas
name: Delbreilh, Laurent
name: Stoclet, Grégory
name: Saiter, Allisson
name: Dargent, Eric
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Fragility index and cooperativity length characterizing the molecular mobility in the amorphous phase are for the first time calculated in drawn polylactide (PLA). The microstructure of the samples is investigated from wide-angle X-ray scattering (WAXS) whereas the amorphous phase dynamics are revealed from broadband dielectric spectroscopy (BDS) and temperature-modulated differential scanning calorimetry (TMDSC). The drawing processes induce the decrease of both cooperativity and fragility with the orientation of the macromolecules. Post-drawing annealing reveals an unusual absence of correlation between the evolutions of cooperativity length and fragility. The cooperativity length remains the same compared to the drawn sample while a huge increase of the fragility index is recorded. By splitting the fragility index in a volume contribution and an energetic contribution, it is revealed that the amorphous phase in annealed samples exhibits a high energetic parameter, even exceeding the amorphous matrix value. It is assumed that the relaxation process is driven in such a way that the volume hindrance caused by the thermomechanical constraint is compensated by the acceleration of segmental motions linked to the increase of degrees of freedom. This result should also contribute to the understanding of the constraint slackening in the amorphous phase during annealing of drawn PLA, which causes among others the decrease of its barrier properties.
Protocol: UBC Okanagan's Open Science Theses Project
Creators: name: Katchen, Jordan
name: Pither, Jason
name: Vis-Dunbar, Mathew
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Life Sciences
subject: Education
subject: open science
subject: Open Science
subject: OS
subject: theses
subject: thesis
subject: the University of British Columbia
subject: the University of British Columbia Okanagan
subject: UBC
subject: UBCO

description: This protocol is associated with UBC Okanagan's Open Science Theses Project. The main goal of our open science theses project is to assess how effectively theses from the University of British Columbia's Okanagan campus follow open science principles and guidelines.
New Airy-type solutions of the ultradiscrete Painleve II equation with parity variables
Creators: name: Igarashi, Hikaru
name: Isojima, Shin
name: Takemura, Kouichi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The q-difference Painleve II equation admits special solutions written in terms of determinant whose entries are the general solution of the q-Airy equation. An ultradiscrete limit of the special solutions is studied by the procedure of ultradiscretization with parity varialbes. Then we obtain new Airy-type solutions of the ultradiscrete Painleve II equation with parity variables, and the solutions have richer structure than the known solutions.
description: 20 pages, 1 figure
Bedtime Music, Involuntary Musical Imagery, and Sleep
Creators: name: Scullin, Michael
name: Gao, Chenlu
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Cognitive Psychology
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: Many people listen to music for hours every day, often near bedtime. We investigated whether music listening affects sleep, focusing on a rarely explored mechanism: involuntary musical imagery (earworms). In Study 1 (N = 199, mean age = 35.9 years), individuals with greater music-listening habits reported persistent nighttime earworms, which were associated with worse sleep quality. In Study 2 (N = 50, mean age = 21.2 years), we randomly assigned each participant to listen to lyrical or instrumental-only versions of popular songs before bed in a laboratory, discovering that instrumental music increased the incidence of nighttime earworms and worsened polysomnography-measured sleep quality. In both studies, earworms were experienced during awakenings, suggesting that the sleeping brain continues to process musical melodies. Study 3 substantiated this possibility by showing a significant increase in frontal slow oscillation activity, a marker of sleep-dependent memory consolidation. Thus, some types of music can disrupt nighttime sleep by inducing long-lasting earworms that are perpetuated by spontaneous memory-reactivation processes.
title: Evaluation of Crohn's disease recurrence in patients with ileocolic anastomosis: value of computed tomography enterography with water enema
Creators: name: Paparo, Francesco
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Gastrointestinal tract
subject: CT
subject: Contrast agent-oral
subject: Endoscopy
subject: Barium enema

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Ileocolic resection with ileocolic anastomosis may be necessary in Crohn's disease (CD) patients that do not respond to conservative medical treatment. Postoperative recurrence is a feature of CD, which is observed in up to 70% of cases [1]. Several...
Freeze-in dark matter in EDGES 21-cm signal
Creators: name: Wu, Shengyu
name: Xu, Shuai
name: Zheng, Sibo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The first measurement on temperature of hydrogen 21-cm signal reported by EDGES strongly favors Coulomb-like interaction between freeze-in dark matter and baryon fluid. We investigate such dark matter both in one- and two-component context, with the light force carrier(s) essential for the Coulomb-like interaction not being photon. Using a conversion of cross sections used by relevant experiments and Boltzmann equations to encode effects of the dark matter-baryon interaction, we show that both cases are robustly excluded by the stringent stellar cooling bounds in the sub-GeV dark matter mass range. The exclusion of one-component case applies to simplified freeze-in dark matter with the light force carrier as dark photon, gauged $B-L$, $L_{e}-L_μ$,$L_{e}-L_τ$ or axion-like particle, while the exclusion of two-component case applies to simplified freeze-in dark matter with the two light force carriers as two axion-like particles coupled to standard model quarks and leptons respectively.
description: v2: journal version with changed title and added references
On the Poisson structure related to $κ$-Poincaré Group
Creators: name: Stachura, Piotr
Publisher: name: arXiv
Year: 2015
Subjects: subject: Symplectic Geometry (math.SG)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 53D17, 81S10, 20G42

description: It is shown that the Poisson structure related to $κ$-Poincaré group is dual to a certain Lie algebroid structure, the related Poisson structure on the (affine) Minkowski space is described in a geometric way.
description: 9 pages, no figures
Einflussfaktoren auf das Ermüdungsverhalten im Bereich sehr hoher Lastwechselzahlen (VHCF)
Creators: name: Wickmann, Carsten
Publisher: name: Universität Rostock
Year: 2022
Subjects: subject: 500 Natural sciences
subject: 600 Technology (Applied sciences)
subject: 620 Engineering & allied operations

description: Eine ermüdungsfeste Auslegung von Bauteilen und Strukturen ist von essenzieller Bedeutung, sollen deren Ausfälle durch Ermüdungsbrüche sowie die finanziellen, wirtschaftlichen und sozialen Folgen verhindert werden. Viele Erscheinungen und Einflüsse im Very High Cycle Fatigue (VHCF) Bereich sind zum aktuellen Stand der Forschung nicht vollumfänglich geklärt. Um die Phänomene und Einflussgrößen der Rissausbreitung und -initiierung im VHCF-Bereich zu untersuchen, wurden innerhalb dieser Arbeit systematische Experimente, Bruchflächenanalysen und numerische Simulationen durchgeführt.
title: Quantification of correlations between somatostatin receptors expression in biopsies from neuroendocrine tumours and PET/CT uptake values in the context of personalised medicine
Creators: name: Athelogou, maria
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Computer applications
subject: Contrast agents
subject: PET-CT
subject: Nuclear medicine conventional
subject: CAD
subject: Biopsy
subject: CAD
subject: Computer Applications-Virtual imaging
subject: Metastases
subject: Pathology
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Somatostatin receptors (SSTR1, 2A, 3, 4, 5) are expressed in nearly all neuroendocrine tumors (NET), especially in gastroenteropancreatic NET (GEP-NET). The diagnosis and treatment of GEP-NET of each individual patient is primarily based on...
null Kampf um Erinnerung und Menschenrechte
Creators: name: Müller, Jan
Publisher: name: Universität Rostock
Year: 2021
Subjects: subject: 320 Political science

description: Die Dissertation analysiert die Comisión Provincial por la Memoria der Provinz Buenos Aires in Argentinien. Die 1999 gegründete erinnerungspolitische Institution wird als Akteur in der argentinischen Erinnerungs- und Menschenrechtspolitik untersucht. Es werden die Aktivitäten in der Provinz Buenos Aires in den Kontext der Erinnerungspolitik auf der Ebene des Nationalstaates eingeordnet. Dabei steht zum einen ihre erinnerungspolitische Ausrichtung im Mittelpunkt, zum anderen werden die Beziehungen zu anderen staatlichen und nichtstaatlichen Akteuren untersucht.
Poetik der Implikation
Creators: name: Lesker, Stephan
Publisher: name: Universität Rostock
Year: 2021
Subjects: subject: 800 Literature & rhetoric
subject: 830 Literatures of Germanic languages

description: Grundlegend für die Analyse sind die Termini Referentialität und Kombinatorik. Kommentar und Desavouierung der bürgerlichen Lebenssphäre werden bei Kempowski nicht explizit von den Erzählinstanzen vorgenommen, sondern durch Bezugnahmen sowie deren gezielte Distribution und durch ihre Kombination mit anderen Topoi implizit verhandelt. Die Dissertation analysiert die Verfahrensweise der impliziten Wertung und Kommentierung und macht sie für die literaturwissenschaftliche Interpretation am Beispiel Kempowski nutzbar.
Implicit Neural Representation for Mesh-Free Inverse Obstacle Scattering
Creators: name: Vlašić, Tin
name: Nguyen, Hieu
name: Khorashadizadeh, AmirEhsan
name: Dokmanić, Ivan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Implicit representation of shapes as level sets of multilayer perceptrons has recently flourished in different shape analysis, compression, and reconstruction tasks. In this paper, we introduce an implicit neural representation-based framework for solving the inverse obstacle scattering problem in a mesh-free fashion. We express the obstacle shape as the zero-level set of a signed distance function which is implicitly determined by network parameters. To solve the direct scattering problem, we implement the implicit boundary integral method. It uses projections of the grid points in the tubular neighborhood onto the boundary to compute the PDE solution directly in the level-set framework. The proposed implicit representation conveniently handles the shape perturbation in the optimization process. To update the shape, we use PyTorch's automatic differentiation to backpropagate the loss function w.r.t. the network parameters, allowing us to avoid complex and error-prone manual derivation of the shape derivative. Additionally, we propose a deep generative model of implicit neural shape representations that can fit into the framework. The deep generative model effectively regularizes the inverse obstacle scattering problem, making it more tractable and robust, while yielding high-quality reconstruction results even in noise-corrupted setups.
description: 6 pages, 8 figures, to be published in 2022 Asilomar Conference on Signals, Systems, and Computers
Twist deformations leading to kappa-Poincare Hopf algebra and their application to physics
Creators: name: Jurić, Tajron
name: Meljanac, Stjepan
name: Samsarov, Andjelo
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider two twist operators that lead to kappa-Poincare Hopf algebra, the first being an Abelian one and the second corresponding to a light-like kappa-deformation of Poincare algebra. The advantage of the second one is that it is expressed solely in terms of Poincare generators. In contrast to this, the Abelian twist goes out of the boundaries of Poincare algebra and runs into envelope of the general linear algebra. Some of the physical applications of these two different twist operators are considered. In particular, we use the Abelian twist to construct the statistics flip operator compatible with the action of deformed symmetry group. Furthermore, we use the light-like twist operator to define a star product and subsequently to formulate a free scalar field theory compatible with kappa-Poincare Hopf algebra and appropriate for considering the interacting phi^4 scalar field model on kappa-deformed space.
description: 12 pages; LaTex, based on the talk presented by A.Samsarov at the XXIII ISQS Conference on Integrable Systems and Quantum Symmetries; the financial support from the Marie Curie FP7-PEOPLE-2011-COFUND, project NEWFELPRO acknowledged; to appear in J.Phys.Conf.Ser
Proof of the Gaussian maximizers conjecture for the communication capacity of noisy heterodyne measurements
Creators: name: Holevo, A. S.
name: Filippov, S. N.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Basing on recently developed convex programming framework in the paper [arXiv:2204.10626], we provide a proof for a long-standing conjecture on optimality of Gaussian encondings for the ultimate communication rate of generalized heterodyne receivers under the oscillator energy constraint. Our results generalize previous ones (obtained under the assumption of validity of the energy threshold condition) and show a drastic difference in the structure of the optimal encoding within and beyond this condition. The core of the proof in the case beyond the threshold is a new log-Sobolev type inequality, which relates the generalized Wehrl entropy with the wavefunction gradient.
description: 18 pages
Using copies to improve precision in continuous-time quantum computing
Creators: name: Bennett, Jemma
name: Callison, Adam
name: O'Leary, Tom
name: West, Mia
name: Chancellor, Nicholas
name: Kendon, Viv
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the quantum optimisation setting, we build on a scheme introduced by Young et al [PRA 88, 062314, 2013], where physical qubits in multiple copies of a problem encoded into an Ising spin Hamiltonian are linked together to increase the logical system's robustness to error. We introduce several innovations that improve this scheme significantly. First, we note that only one copy needs to be correct by the end of the computation, since solution quality can be checked efficiently. Second, we find that ferromagnetic links do not generally help in this "one correct copy" setting, but anti-ferromagnetic links do help on average, by suppressing the chance of the same error being present on all of the copies. Third, we find that minimum-strength anti-ferromagnetic links perform best, by counteracting the spin-flips induced by the errors. We have numerically tested our innovations on small instances of spin glasses from Callison et al [NJP 21, 123022, 2019], and we find improved error tolerance for three or more copies in configurations that include frustration. Interpreted as an effective precision increase, we obtain several extra bits of precision for three copies connected in a triangle. This provides proof-of-concept of a method for scaling quantum annealing beyond the precision limits of hardware, a step towards fault tolerance in this setting.
description: 15 pages, 12 figures
Ecospirituality and Religion (Singapore)
Creators: name: Billet, Matthew
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: Social and Behavioral Sciences

description: This study will investigate Singaporean’s beliefs about nature across multiple religious backgrounds. Recent research has investigated the spiritual beliefs about nature of Americans (who are largely Christian or nonreligious), finding that such beliefs are associated with moral concern for the environment. This study will assess the relationship between religion and spiritual beliefs about nature, and the relationship between spiritual beliefs about nature and moral concern for nature. This sample will also be compared with previously collected responses from Americans to assess the measurement invariance of the Ecospirituality Scale across these two cultural contexts. This sample is also being recruited to complete additional measures that are designed to test additional, unrelated hypotheses. Analyses that pertain to these unrelated hypotheses will not be included in this preregistration; however, all measures included in the survey will be described and presented in the Appendix.
title: Diagnostic accuracy of free-breathing coronary CTA using dual-source CT high-pitch acquisition: comparison of single and double scans with conventional angiography
Creators: name: So, Man Ching
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cardiac
subject: CT
subject: CT-Angiography
subject: Diagnostic procedure
subject: Arteriosclerosis
subject: Ischaemia / Infarction

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To retrospectively investigate whether two subsequent prospectively ECG-triggered high-pitch CT acquisitions(double scans)can increase the diagnostic accuracy of coronary CT angiography (CCTA) for free-breathing patients compared with a singlescan...
Excitation function Analysis for Charmonium Production in Heavy-Ion Collisions
Creators: name: Zhou, Kai
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Both color screening and regeneration are hot medium effects on charmonium production in heavy ion collisions. While they affect in an opposite way the charmonium yield, their competition in transverse dynamics bring sensitivity to the ratio of averaged transverse momentum suqare for charmonium, which thus can reveal more nature of the QCD medium created from the collisions. We make an excitation analysis based on transport approach to illustrate such a picuture.
description: 4 pages, 3 figures, SQM2015 proceedings
Search for the rare hadronic decay $B_s^0\to p \bar{p}$
Creators: name: LHCb Collaboration
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for the rare hadronic decay $B_s^0\to p \bar{p}$ is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 6 fb$^{-1}$. No evidence of the decay is found and an upper limit on its branching fraction is set at ${\cal B}(B_s^0\to p \bar{p}) < 4.4~(5.1) \times 10^{-9}$ at 90% (95%) confidence level; this is currently the world's best upper limit. The decay mode $B^0\to p \bar{p}$ is measured with very large significance, confirming the first observation by the LHCb experiment in 2017. The branching fraction is determined to be ${\cal B}(B^0\to p \bar{p}) = \rm (1.27 \pm 0.15 \pm 0.05 \pm 0.04) \times 10^{-8}$, where the first uncertainty is statistical, the second is systematic and the third is due to the external branching fraction of the normalization channel $B^0\to K^+π^-$. The combination of the two LHCb measurements of the $B^0\to p \bar{p}$ branching fraction yields ${\cal B}(B^0\to p \bar{p}) = \rm (1.27 \pm 0.13 \pm 0.05 \pm 0.03) \times 10^{-8}$.
description: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-004.html (LHCb public pages)
title: β-thalassaemia as a new potential risk factor for left ventricular noncompaction (LVNC): a cardiac MRI evaluation
Creators: name: Liguori, Carlo
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Cardiac
subject: Haematologic
subject: MR
subject: MR-Functional imaging
subject: Diagnostic procedure
subject: Haematologic diseases
subject: Congenital

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Left ventricular noncompaction (LVNC) is a rare congenital disorder, thought to be related to intrauterine arrest of normal compaction during the endomyocardial morphogenesis. It is characterized by multiple and excessive trabeculations, deep...
Effect of internal magnetic flux on a relativistic spin-1 oscillator in the spinning point source-generated spacetime
Creators: name: Güvendi, Abdullah
name: Doğan, Semra Gürtaş
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider a charged relativistic spin-1 oscillator under the influence of an internal magnetic flux in a 2+1 dimensional spacetime induced by a spinning point source. In order to analyze the effects of the internal magnetic flux and spin of the point source on the relativistic dynamics of such a vector field, we seek a non-perturbative solution of the associated spin-1 equation derived as an excited state of Zitterbewegung. By performing an analytical solution of the resulting equation, we determine exact results for the system in question. Accordingly, we analyze the effects of spin of the point source and internal magnetic flux on the relativistic dynamics of the considered test field. We see that the spin of such a field can be altered by the magnetic flux and this means that the considered system may behave as a fermion or boson according to the varying values of the magnetic flux, in principle. We observe that the internal magnetic flux and the spin of the point source impact on the relativistic energy levels and probability density functions. Also, our results indicate that the spin of the point source breaks the symmetry of the energy levels corresponding to particle-antiparticle states.
Logarithmic, Coulomb and Riesz energy of point processes
Creators: name: Leblé, Thomas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We define a notion of logarithmic, Coulomb and Riesz interactions in any dimension for random systems of infinite charged point configurations with a uniform background of opposite sign. We connect this interaction energy with the "renormalized energy" studied by Serfaty et al., which appears in the free energy functional governing the microscopic behavior of logarithmic, Coulomb and Riesz gases. Minimizers of this functional include the Sine-beta processes in the one-dimensional Log-gas case. Using our explicit expression (inspired by the work of Borodin-Serfaty) we prove their convergence to the Poisson process in the high-temperature limit as well as a crystallization result in the low-temperature limit for one-dimensional systems.
description: 37 pages
Strong coupling between a photon and a hole spin in silicon
Creators: name: Yu, Cécile X.
name: Zihlmann, Simon
name: Abadillo-Uriel, José C.
name: Michal, Vincent P.
name: Rambal, Nils
name: Niebojewski, Heimanu
name: Bedecarrats, Thomas
name: Vinet, Maud
name: Dumur, Etienne
name: Filippone, Michele
name: Bertrand, Benoit
name: De Franceschi, Silvano
name: Niquet, Yann-Michel
name: Maurand, Romain
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Spins in semiconductor quantum dots constitute a promising platform for scalable quantum information processing. Coupling them strongly to the photonic modes of superconducting microwave resonators would enable fast non-demolition readout and long-range, on-chip connectivity, well beyond nearest-neighbor quantum interactions. Here we demonstrate strong coupling between a microwave photon in a superconducting resonator and a hole spin in a silicon-based double quantum dot issued from a foundry-compatible MOS fabrication process. By leveraging the strong spin-orbit interaction intrinsically present in the valence band of silicon, we achieve a spin-photon coupling rate as high as 330~MHz largely exceeding the combined spin-photon decoherence rate. This result, together with the recently demonstrated long coherence of hole spins in silicon, opens a new realistic pathway to the development of circuit quantum electrodynamics with spins in semiconductor quantum dots.
description: 7 pages, 4 figures of main text, 19 pages, 12 figures of supplementary material
title: Organ-based tube-current modulation: impact of breast position in clinical practice
Creators: name: Taylor, Stephen
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Thorax
subject: Breast
subject: CT
subject: CT-Angiography
subject: CT-High Resolution
subject: Equipment
subject: Radiation safety

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Organ-Based Tube Current Modulation: Applied to CT Available since 2008 Aims to reduce the exposure to radiation sensitive organs by 30%, by lowering the tube current on certain projections [1,2] Areas of application:Eyes (CT scans of head and...
Evaluating proxies of subaerial beach volume change across various time scales and morphologies at Onslow Beach, North Carolina, USA
Creators: name: Theuerkauf, Ethan John
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Proxy methods for measuring beach volume change, such as beach-profile surveys and measuring shoreline change are commonly used in place of three-dimensional surveys. These methods are used at all types of beach morphologies and time frames, but it is unclear whether these measurements represent the true volume change. This study assesses the impact of transect placement on volume change measurements and the performance of the shoreline change proxy at varying time frames (0.5-3.5 years) and morphologies (e.g. beach cusps, nourishment). Results indicate that transect placement is important over both short- and longer-time frames at beaches with high-along-beach morphologic variability, high temporal variability in shoreline position, and periodic nourishment. Transect placement does not impact volume change measurements over longer (~3.5 year) time scales at beaches with rapid and consistent volume change. The shoreline change proxy works best at beaches with low temporal variability in shoreline position and where there are no significant morphologic changes to the backshore (e.g. beach cusp formation/destruction).
title: Relationship among facet joint fluid (FJF) at MRI, age, and disk degeneration in patients affected with low back pain
Creators: name: Ottonello, Carlo
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: MR
subject: Diagnostic procedure
subject: Epidemiology

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To estimate the relationship among FJF at MRI, age, and disc degeneration in patients affected with low back pain. Instability is defined as an abnormal response to applied loads, characterized by movement in the motion segment beyond normal...
Going global: how North Carolina became the epicenter of global health in America
Creators: name: Soucheray-Grell, Stephanie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Once upon a time, thinking about disease in a global context was the purview of a few doctors who researched and documented the diseases of the tropics, colonies and Southern Hemisphere. Today, global health is an academic discipline that uses academic expertise in the humanities, social and natural sciences to explain health disparities both at home and abroad. This thesis looks at global health in North Carolina and shows how institutions, students and the local economy have embraced global health.
Modeling Longitudinal Mediation of Within-Person Changes
Creators: name: Henk, Corinne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Mediation analysis concerns the discovery of mechanisms that transmit an effect from one variable to another. At times, social scientists propose hypotheses involving mediation of within-person changes (e.g., do within-person changes in cognitive ability mediate the relation between changes in depression and changes in disability?) The current manuscript introduces an approach within the latent change score (LCS) modeling framework to test such hypotheses. This approach is compared to existing methods, including the cross-lagged panel model (CLPM; Cole & Maxwell, 2003) and the LCS mediation model (Selig & Preacher, 2009). Results from (1) a single-replication simulation and (2) an empirical example utilizing data from the Health and Retirement study are presented.
title: Attenuation of anode heel effect with an aluminum filter and their influence on patient dose in lumbar spine radiography
Creators: name: Soares, Joana
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Radiation physics
subject: Professional issues
subject: Conventional radiography
subject: Dosimetry
subject: Radiation safety
subject: Technical aspects

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The non-uniformity of the X-ray beam at the ampoule exit causes variations on the optical density of radiographic examination, which can lead to a false diagnosis. Therefore, it is intended to study the possibility of counteracting the anodic heel...
title: Efficacy of a liver detection algorithm for noise reduction in abdominal CT
Creators: name: Ardley, Nicholas
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Liver
subject: Oncology
subject: Radiation physics
subject: CT
subject: CT-Quantitative
subject: Technology assessment
subject: Diagnostic procedure
subject: Computer Applications-Detection, diagnosis
subject: Haemangioma
subject: Metastases
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The recent advent of state of the art CT technology has been generating great interest in the reduction of radiation dose. CT radiation dose administration is based on the ALARA (as low as reasonably achievable) principle. CT radiation dose...
title: The importance of craniovertebral and cervicomedullary angle on cervicogenic headache
Creators: name: Coban, Gökçen
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Neuroradiology brain
subject: Neuroradiology spine
subject: Neuroradiology peripheral nerve
subject: MR
subject: Diagnostic procedure

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Cervicogenic headache (CH) is a referred pain from cervical structures innervated by the three upper cervical spinal nerves. Anesthetic blocks of cervical structures or related nerves can provide a temporary relief of pain, which may suggest that...
ARCHIVER D5.6: Sustainability Planning & Strategy
Creators: name: Fernandes, João
name: Jones, Bob
name: Manou, Anna
name: Mentrida, Sonia
Publisher: name: Zenodo
Year: 2023
Subjects: Sustainability, LTDP, Archiving, EOSC

description: This document describes a plan to promote sustainable scenarios after the end of the ARCHIVER project and maximize the impact of the R&D produced over 3 years to design, prototype and pilot the resulting ARCHIVER services for long-term data preservation, for multiple data volumes and scientific domains.
CDF-II W boson mass in the Dirac Scotogenic model
Creators: name: Chuliá, Salvador Centelles
name: Srivastava, Rahul
name: Yadav, Sushant
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The Dirac scotogenic model provides an elegant mechanism which explains small Dirac neutrino masses and neutrino mixing, with a single symmetry simultaneously protecting the ``Diracness'' of the neutrinos and the stability of the dark matter candidate. Here we explore the phenomenological implications of the recent CDF-II measurement of the $W$ boson mass in the Dirac scotogenic framework. We show that, in the scenario where the dark matter is mainly a $SU(2)_L$ scalar doublet, it cannot concurrently satisfy: (a) the dark matter relic density (b) the $m_W$ anomaly and (c) the direct detection constraints. However, unlike the Majorana scotogenic model, the Dirac version also has a ``dark sector'' $SU(2)_L$ singlet scalar. We show that if the singlet scalar is the lightest dark sector particle i.e. the dark matter, then all neutrino physics and dark matter constraints along with the constraints from oblique $S$, $T$ and $U$ parameters can be concurrently satisfied for $W$ boson mass in CDF-II mass range.
description: 18 pages, 10 figures, 2 tables. Updated to match published version
title: Computed tomography of the bowel: a prospective comparison study between four techniques
Creators: name: Revelli, Matteo
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Abdomen
subject: Colon
subject: Small bowel
subject: CT
subject: Diagnostic procedure

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: An important technical requirement for the CT study of the bowel is the distension of a clear lumen with appropriate separation of the intestinal walls, both for the small and large bowel, because collapsed bowel loops can hide lesions and mimic...
The TSP with drones: The benefits of retraversing the arcs
Creators: name: Morandi, Nicola
name: Leus, Roel
name: Matuschke, Jannik
name: Yaman, Hande
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: In the Traveling Salesman Problem with Drones (TSP-mD), a truck and multiple drones cooperate to serve customers in the minimum amount of time. The drones are launched and retrieved by the truck at customer locations, and each of their flights must not consume more energy than allowed by their batteries. Most problem settings in the literature restrict the feasible truck routes to cycles, i.e., closed paths, which never visit a node more than once. Revisiting a node, however, may lower the time required to serve all the customers. Additionally, we observe that optimal solutions for the TSP-mD may retraverse arcs, i.e., optimal truck routes may contain the same arcs multiple times. We refer to such solutions as arc-retraversing, and include them in our solution space by modeling the truck route as a closed walk. We describe Euclidean instances where all the optimal solutions are arc-retraversing. The necessity of arc retraversals does not seem to have been investigated in previous studies, and those that allow node revisits seem to assume that there always exists an optimal solution without arc retraversals. We prove that under certain conditions, which are commonly met in the literature, this assumption is correct. When these conditions are not met, however, excluding arc-retraversing solutions might result in an increase of the optimal value; we identify cases where a priori and a posteriori upper bounds hold on such increase. Finally, we prove that there is no polynomial-time heuristic that can approximate the metric TSP-mD within a constant factor, unless P=NP. We identify a (non-constant) approximation factor explicitly when the truck can visit all the nodes.
Visco-thermal effects in acoustic metamaterials: from total transmission to total reflection and high absorption
Creators: name: Molerón, Miguel
name: Serra-Garcia, Marc
name: Daraio, Chiara
Publisher: name: arXiv
Year: 2015
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically and experimentally investigate visco-thermal effects on the acoustic propagation through metamaterials consisting of rigid slabs with subwavelength slits embedded in air. We demonstrate that this unavoidable loss mechanism is not merely a refinement, but it plays a dominant role in the actual acoustic response of the structure. Specifically, in the case of very narrow slits, the visco-thermal losses avoid completely the excitation of Fabry-Perot resonances, leading to 100% reflection. This is exactly opposite to the perfect transmission predicted in the idealised lossless case. Moreover, for a wide range of geometrical parameters, there exists an optimum slit width at which the energy dissipated in the structure can be as high as 50%. This work provides a clear evidence that visco-thermal effects are necessary to describe realistically the acoustic response of locally resonant metamaterials.
title: Effect of automated bone reduction on detection of intrapulmonary nodules with special focus on histopathological outcome
Creators: name: Malich, Ansgar
Publisher: name: European Congress of Radiology
Year: 2013
Subjects: subject: Lung
subject: Computer applications
subject: Oncology
subject: CAD
subject: Image manipulation / Reconstruction
subject: Conventional radiography
subject: CAD
subject: Computer Applications-Detection, diagnosis
subject: Diagnostic procedure
subject: Metastases
subject: Cancer
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Conventional chest X-ray is still the most common radiological diagnostic imaging. CAD-application might be benefitial to improve reliability of nodule detection. Nevertheless nodule detection at specific locations is still difficult, thus a bone...
title: Enlarged parathyroid gland
Creators: name: TORRES MONARREZ, AXEL ALBERTO
Publisher: name: EURORAD
Year: 2023
Subjects: subject: Head & neck imaging
subject: Head and neck
subject: Thyroid / Parathyroids
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Ultrasound-Power Doppler
subject: Contrast agent-intravenous
subject: Hyperplasia / Hypertrophy
subject: Clinical Cases

description: Clinical History: A 28-year-old female with a history of hypertension and chronic kidney disease. The patient started with bone pain and proximal muscle weakness, with an overall unremarkable physical exam. Laboratory testing found hypercalcemia (15 mg/dl) and PTH level elevated at 1400 pg/mL.

Pathology: Parathyroid, excision: the parotid gland weighs 6.9 grams. 

description: 28 years, female