cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spontaneous mass generation and the small dimensions of the Standard Model gauge groups U(1), SU(2) and SU(3)
Creators: name: Fernandez, Guillermo Garcia
name: Rojas, Jesus Guerrero
name: Llanes-Estrada, Felipe J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The gauge symmetry of the Standard Model is SU(3)_c x SU(2)_L x U(1)_Y for unknown reasons. One aspect that can be addressed is the low dimensionality of all its subgroups. Why not much larger groups like SU(7), or for that matter, SP(38) or E7? We observe that fermions charged under large groups acquire much bigger dynamical masses, all things being equal at a high e.g. GUT scale, than ordinary quarks. Should such multicharged fermions exist, they are too heavy to be observed today and have either decayed early on (if they couple to the rest of the Standard Model) or become reliquial dark matter (if they don't). The result follows from strong antiscreening of the running coupling for those larger groups (with an appropriately small number of flavors) together with scaling properties of the Dyson-Schwinger equation for the fermion mass.
description: 15 pages, 17 plots. This version incorporates community as well as referee comments. Accepted for publication in Nuclear Physics B
Testbeam results of the Picosecond Avalanche Detector proof-of-concept prototype
Creators: name: Iacobucci, G.
name: Zambito, S.
name: Milanesio, M.
name: Moretti, T.
name: Saidi, J.
name: Paolozzi, L.
name: Munker, M.
name: Cardella, R.
name: Martinelli, F.
name: Picardi, A.
name: Rücker, H.
name: Trusch, A.
name: Valerio, P.
name: Cadoux, F.
name: Cardarelli, R.
name: Débieux, S.
name: Favre, Y.
name: Fenoglio, C.A.
name: Ferrere, D.
name: Gonzalez-Sevilla, S.
name: Gurimskaya, Y.
name: Kotitsa, R.
name: Magliocca, C.
name: Nessi, M.
name: Pizarro-Medina, A.
name: Sabater Iglesias, J.
name: Vicente Barreto Pinto, M.
Publisher: name: London : Inst. of Physics
Year: 2022
Subjects: subject: Instrumentation and methods for time-of-flight (TOF) spectroscopy
subject: Particle tracking detectors (Solid-state detectors)
subject: Pixelated detectors and associated VLSI electronics
subject: Solid state detectors
subject: 610

description: The proof-of-concept prototype of the Picosecond Avalanche Detector, a multi-PN junction monolithic silicon detector with continuous gain layer deep in the sensor depleted region, was tested with a beam of 180 GeV pions at the CERN SPS. The prototype features low noise and fast SiGe BiCMOS frontend electronics and hexagonal pixels with 100 μm pitch. At a sensor bias voltage of 125 V, the detector provides full efficiency and average time resolution of 30, 25 and 17 ps in the overall pixel area for a power consumption of 0.4, 0.9 and 2.7 W/cm2, respectively. In this first prototype the time resolution depends significantly on the distance from the center of the pixel, varying at the highest power consumption measured between 13 ps at the center of the pixel and 25 ps in the inter-pixel region.
Table S1; Fig. S1; Appendix S1; Figure S2; Figure S3; Figure S4 from Dodging silver bullets: good CRISPR gene-drive design is critical for eradicating exotic vertebrates
Creators: name: Prowse, Thomas A. A.
name: Cassey, Phillip
name: Ross, Joshua V.
name: Pfitzner, Chandran
name: Wittmann, Talia
name: Thomas, Paul
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: Computational Biology

description: Demographic parameters used for the stochastic individual-based model.; Diagram of the individual-based model structure and flow.; R function to calculate transition probabilities during homing.; Impact of reproductive compensation on the homozygotic embryonic non-viability strategy; Probability of successful homing under sequential and simultaneous gRNA expression.; Mean time to eradication for different pest species on islands.
The holographic entropy cone from marginal independence
Creators: name: Hernández-Cuenca, Sergio
name: Hubeny, Veronika E.
name: Rota, Massimiliano
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The holographic entropy cone characterizes the relations between entanglement entropies for a spatial partitioning of the boundary spacetime of a holographic CFT in any state describing a classical bulk geometry. We argue that the holographic entropy cone, for an arbitrary number of parties, can be reconstructed from more fundamental data determined solely by subadditivity of quantum entropy. We formulate certain conjectures about graph models of holographic entanglement, for which we provide strong evidence, and rigorously prove that they all imply that such a reconstruction is possible. Our conjectures (except only for the weakest) further imply that the necessary data is remarkably simple. In essence, all one needs to know to reconstruct the holographic entropy cone, is a certain subset of the extreme rays of this simpler "subadditivity cone", namely those which can be realized in holography. This recasting of the bewildering entanglement structure of geometric states into primal building blocks paves the way to distilling the essence of holography for the emergence of a classical bulk spacetime.
description: 82 pages, 17 figures
title: IgG4-related disease: focus on abdominal involvement: keys and pearls to a susccessful report.
Creators: name: Souto Canteli, Borja
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Abdomen
subject: Biliary Tract / Gallbladder
subject: Pancreas
subject: CT
subject: MR
subject: Education
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Describe the different abdominal locations of IgG4-related disease. Learn the typical imaging findings Appreciate imaging...
No nematicity at the onset temperature of the pseudogap phase in the cuprate superconductor YBCO
Creators: name: Grissonnanche, G.
name: Cyr-Choinière, O.
name: Day, J.
name: Liang, R.
name: Bonn, D. A.
name: Hardy, W. N.
name: Doiron-Leyraud, N.
name: Taillefer, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Electronic nematicity is the spontaneous loss of rotational symmetry in a metal, without breaking translational symmetry. In the cuprate superconductors, there is experimental evidence for nematicity, but its origin remains unclear. Here we investigate the onset of nematicity in the transport of charge by means of electric and thermoelectric measurements in underdoped YBa$_{\rm 2}$Cu$_{\rm 3}$O$_{\rm y}$, performed by passing the current (electrical or thermal) first along the $a$ axis then the $b$ axis of the orthorhombic structure in the same crystal, with a hole doping $p = 0.12$. Upon cooling, we observe no additional in-plane anisotropy -- beyond the background anisotropy due to the CuO chains -- in either the resistivity $ρ$ or the Seebeck coefficient $S$ as the temperature $T^{\star}$~for the onset of the pseudogap phase is crossed. We conclude that the pseudogap phase of cuprates is not nematic. However, at temperatures much lower than $T^{\star}$, a strong additional anisotropy is observed, most clearly in the Peltier coefficient $α= S / ρ$. We interpret it as nematicity associated with the development of charge order.
description: 7 pages, 4 figures
Vitamin E reverses multidrug resistance in vitro and in vivo
Creators: name: Wang, Dun
name: Liu, Feng
name: Racette, Kelly
name: Wang, Yongjun
name: Tang, Jingling
name: Fu, Qiang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Multidrug resistance (MDR) is a major obstacle to successful and effective chemotherapeutic treatments of cancers. This study explored the reversal effects of vitamin E on MDR tumor cells in vitro and in vivo, elucidating the potential mechanism of this reversal. VE at a concentration of 50 μM exhibited a significant reversal of the MDR effect (compared to only PTX in DMSO, p < 0.05) in two human MDR cell lines (H460/taxR and KB-8-5). The MDR cell xenograft model was established to investigate the effect of VE on reversing MDR in vivo. Mice intravenously injected with Taxol (10 mg/kg) with VE (500 mg/kg, IP) showed an ability to overcome the MDR. VE and its derivatives can significantly increase intracellular accumulation of rhodamine 123 and doxorubicin (P-gp substrate), but not alter the levels of P-gp expression. These treatments also did not decrease the levels of intracellular ATP, but were still able to inhibit the verapamil-induced ATPase activity of P-gp. The new application of VE as an MDR sensitizer will be attractive due to the safety of this treatment.
Running of Radiative Neutrino Masses: The Scotogenic Model - REVISITED
Creators: name: Merle, Alexander
name: Platscher, Moritz
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A few years ago, it had been shown that effects stemming from renormalisation group running can be quite large in the scotogenic model, where neutrinos obtain their mass only via a 1-loop diagram (or, more generally, in many models in which the light neutrino mass is generated via quantum corrections at loop-level). We present a new computation of the renormalisation group equations (RGEs) for the scotogenic model, thereby updating previous results. We discuss the matching in detail, in particular in what regards the different mass spectra possible for the new particles involved. We furthermore develop approximate analytical solutions to the RGEs for an extensive list of illustrative cases, covering all general tendencies that can appear in the model. Comparing them with fully numerical solutions, we give a comprehensive discussion of the running in the scotogenic model. Our approach is mainly top-down, but we also discuss an attempt to get information on the values of the fundamental parameters when inputting the low-energy measured quantities in a bottom-up manner. This work serves the basis for a full parameter scan of the model, thereby relating its low- and high-energy phenomenology, to fully exploit the available information.
description: 44 pages, 13 figures; continuation of 1205.0008 [hep-ph]; content matches published version; v3 corrected a minor typo in Eq. (25)
Superconformal partial waves in Grassmannian field theories
Creators: name: Doobary, Reza
name: Heslop, Paul
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive superconformal partial waves for all scalar four-point functions on a super Grassmannian space Gr(m|n,2m|2n) for all m,n. This family of four-point functions includes those of all (arbitrary weight) half BPS operators in both N=4 SYM (m=n=2) and in N=2 superconformal field theories in four dimensions (m=2,n=1) on analytic superspace. It also includes four-point functions of all (arbitrary dimension) scalar fields in non-supersymmetric conformal field theories (m=2,n=0) on Minkowski space, as well as those of a certain class of representations of the compact SU(2n) coset spaces. As an application we then specialise to N=4 SYM and use these results to perform a detailed superconformal partial wave analysis of the four- point functions of arbitrary weight half BPS operators. We discuss the non-trivial separation of protected and unprotected sectors for the <2222>, <2233> and <3333> cases in an SU(N) gauge theory at finite N. The <2233> correlator predicts a non-trivial protected twist four sector for <3333> which we can completely determine using the knowledge that there is precisely one such protected twist four operator for each spin.
description: Minor corrections and a new subsection 3.5.1 giving explicit forms for the superconformal partial waves in N=4 SYM in terms of one- and two-variable functions for easier comparison with other approaches
(401813) William Jobson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Fundamental differences between glassy dynamics in two and three dimensions
Creators: name: Flenner, Elijah
name: Szamel, Grzegorz
Publisher: name: arXiv
Year: 2015
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The two-dimensional freezing transition is very different from its three-dimensional counterpart. In contrast, the glass transition is usually assumed to have similar characteristics in two and three dimensions. Using computer simulations we show that glassy dynamics in supercooled two- and three-dimensional fluids are fundamentally different. Specifically, transient localization of particles upon approaching the glass transition is absent in two dimensions, whereas it is very pronounced in three dimensions. Moreover, the temperature dependence of the relaxation time of orientational correlations is decoupled from that of the translational relaxation time in two dimensions but not in three dimensions. Lastly, the relationships between the characteristic size of dynamically heterogeneous regions and the relaxation time are very different in two and three dimensions. These results strongly suggest that the glass transition in two dimensions is different than in three dimensions.
description: 6 pages of main text and 3 pages of Supplemental Material
title: Non Urothelial Urinary Bladder Tumors- A pictorial review
Creators: name: Sarkar, Sayan
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Oncology
subject: Urinary Tract / Bladder
subject: CT
subject: MR
subject: Contrast agent-intravenous
subject: Neoplasia

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Bladder cancer (BC) is one of the most common malignancies of the urinary tract with around 2.7 million patients being affected each year worldwide [1]. It is the fourth most common cancer in males and the tenth most common cancer in females. It...
Atom Interferometer Tests of Dark Matter
Creators: name: Du, Yufeng
name: Murgui, Clara
name: Pardo, Kris
name: Wang, Yikun
name: Zurek, Kathryn M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Direct detection experiments for dark matter are increasingly ruling out large parameter spaces. However, light dark matter models with particle masses $<$ GeV are still largely unconstrained. Here we examine a proposal to use atom interferometers to detect a light dark matter subcomponent at sub-GeV masses. We describe the decoherence and phase shifts caused by dark matter scattering off of one "arm" of an atom interferometer using a generalized dark matter direct detection framework. This allows us to consider multiple channels: nuclear recoils, hidden photon processes, and axion interactions. We apply this framework to several proposed atom interferometer experiments. Because atom interferometers are sensitive to extremely low momentum deposition and their coherent atoms may give them a boost in sensitivity, these experiments will be highly competitive and complementary to other direct detection methods. In particular, atom interferometers are uniquely able to probe a dark matter sub-component with $m_χ\lesssim 10~\rm{keV}$. We find that, for a mediator mass $m_ϕ=10^{-5}m_χ$, future atom interferometers could close a gap in the existing constraints on nuclear recoils down to $\barσ_n \sim 10^{-42}~\rm{cm}^2$ for $m_χ\sim 10^{-5} - 10^{-1}~\rm{MeV}$ dark matter masses.
description: 26 pages, 5 figures; v4: changes to decoherence observable
Pollination treatment and flowering phenology from Pollination benefits are maximized at intermediate nutrient levels.
Creators: name: Tamburini, Giovanni
name: Lami, Francesco
name: Marini, Lorenzo
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Experimental setup, meteorological conditions during flowering, flowering pattern and pollination treatment, flowering phenology analysis and yield model predictions.
title: Structured versus narrative reporting of dynamic barium swallow in œsophageal motility diseases.
Creators: name: Fontanella, Giovanni
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Gastrointestinal tract
subject: Fluoroscopy
subject: Dynamic swallowing studies
subject: Swallowing disorders

description: Purpose Methods and materials Results Conclusion Personal information and conflict of interest References
description: Purpose: Prose reporting has been the primary, and for many decades, the only product of radiology since its inception in the early 1900’s. It has gone through huge leaps forward in both imaging and reporting technology. However, even though it can be...
Asymptotic role of entanglement in quantum metrology
Creators: name: Augusiak, Remigiusz
name: Kolodynski, Jan
name: Streltsov, Alexander
name: Bera, Manabendra Nath
name: Acin, Antonio
name: Lewenstein, Maciej
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum systems allow one to sense physical parameters beyond the reach of classical statistics---with resolutions greater than $1/N$, where $N$ is the number of constituent particles independently probing a parameter. In the canonical phase sensing scenario the \emph{Heisenberg Limit} $1/N^{2}$ may be reached, which requires, as we show, both the relative size of the largest entangled block and the geometric measure of entanglement to be nonvanishing as $N\to\infty$. Yet, we also demonstrate that in the asymptotic $N$ limit any precision scaling arbitrarily close to the Heisenberg Limit ($1/N^{2-\varepsilon}$ with any $\varepsilon>0$) may be attained, even though the system gradually becomes noisier and separable, so that both the above entanglement quantifiers asymptotically vanish. Our work shows that sufficiently large quantum systems achieve nearly optimal resolutions despite their relative amount of entanglement being arbitrarily small. In deriving our results, we establish the continuity relation of the quantum Fisher information evaluated for a phaselike parameter, which lets us link it directly to the geometry of quantum states, and hence naturally to the geometric measure of entanglement.
description: 12 pages, 4 figures
Delocalization-localization dynamical phase transition of random walks on graphs
Creators: name: Carugno, Giorgio
name: Vivo, Pierpaolo
name: Coghi, Francesco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider random walks evolving on two models of connected and undirected graphs and study the exact large deviations of a local dynamical observable. We prove, in the thermodynamic limit, that this observable undergoes a first-order dynamical phase transition (DPT). This is interpreted as a `co-existence' of paths in the fluctuations that visit the highly connected bulk of the graph (delocalization) and paths that visit the boundary (localization). The methods we used also allow us to characterize analytically the scaling function that describes the finite size crossover between the localized and delocalized regimes. Remarkably, we also show that the DPT is robust with respect to a change in the graph topology, which only plays a role in the crossover regime. All results support the view that a first-order DPT may also appear in random walks on infinite-size random graphs.
description: 12 pages, 6 figures
Pollination treatment and flowering phenology from Pollination benefits are maximized at intermediate nutrient levels
Creators: name: Tamburini, Giovanni
name: Lami, Francesco
name: Marini, Lorenzo
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Experimental setup, meteorological conditions during flowering, flowering pattern and pollination treatment, flowering phenology analysis and yield model predictions.
Weakly-Supervised Temporal Action Localization by Progressive Complementary Learning
Creators: name: Du, Jia-Run
name: Feng, Jia-Chang
name: Lin, Kun-Yu
name: Hong, Fa-Ting
name: Wu, Xiao-Ming
name: Qi, Zhongang
name: Shan, Ying
name: Zheng, Wei-Shi
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Weakly Supervised Temporal Action Localization (WSTAL) aims to localize and classify action instances in long untrimmed videos with only video-level category labels. Due to the lack of snippet-level supervision for indicating action boundaries, previous methods typically assign pseudo labels for unlabeled snippets. However, since some action instances of different categories are visually similar, it is non-trivial to exactly label the (usually) one action category for a snippet, and incorrect pseudo labels would impair the localization performance. To address this problem, we propose a novel method from a category exclusion perspective, named Progressive Complementary Learning (ProCL), which gradually enhances the snippet-level supervision. Our method is inspired by the fact that video-level labels precisely indicate the categories that all snippets surely do not belong to, which is ignored by previous works. Accordingly, we first exclude these surely non-existent categories by a complementary learning loss. And then, we introduce the background-aware pseudo complementary labeling in order to exclude more categories for snippets of less ambiguity. Furthermore, for the remaining ambiguous snippets, we attempt to reduce the ambiguity by distinguishing foreground actions from the background. Extensive experimental results show that our method achieves new state-of-the-art performance on two popular benchmarks, namely THUMOS14 and ActivityNet1.3.
(401815) Helen Jobson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Spectroscopic study of light scattering in linear alkylbenzene for liquid scintillator neutrino detectors
Creators: name: Zhou, Xiang
name: Liu, Qian
name: Han, Junbo
name: Zhang, Zhenyu
name: Zhang, Xuan
name: Ding, Yayun
name: Zheng, Yangheng
name: Zhou, Li
name: Cao, Jun
name: Wang, Yifang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We has set up a light scattering spectrometer to study the depolarization of light scattering in linear alkylbenzene. From the scattering spectra it can be unambiguously shown that the depolarized part of light scattering belongs to Rayleigh scattering. The additional depolarized Rayleigh scattering can make the effective transparency of linear alkylbenzene much better than it was expected. Therefore sufficient scintillation photons can transmit through the large liquid scintillator detector of JUNO. Our study is crucial to achieving the unprecedented energy resolution 3\%/$\sqrt{E\mathrm{(MeV)}}$ for JUNO experiment to determine the neutrino mass hierarchy. The spectroscopic method can also be used to judge the attribution of the depolarization of other organic solvents used in neutrino experiments.
description: 6 pages, 5 figures
title: Lighting a TORCH on brain imaging findings on congenital infections
Creators: name: Guarilha, Taísa
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Paediatric
subject: CT
subject: MR
subject: Ultrasound
subject: Education
subject: Congenital
subject: Infection

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Review central nervous system imaging findings in congenital infections enabling radiologists to understand and interpret these findings.Provide an overview of congenital infections the may be useful for radiologists to elaborate differential...
Mechanisms of HCV-induced liver cancer: What did we learn from in vitro and animal studies?
Creators: name: Rusyn, Ivan
name: Lemon, Stanley M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Hepatitis C virus (HCV) is a cause of liver diseases that range from steatohepatitis, to fibrosis, cirrhosis, and hepatocellular carcinoma (HCC). The challenge of understanding the pathogenesis of HCV-associated liver cancer is difficult as most standard animal models used in biomedical research are not permissive to HCV infection. Herein, we provide an overview of a number of creative in vivo, mostly in the mouse, and in vitro models that have been developed to advance our understanding of the molecular and cellular effects of HCV on the liver, specifically with their relevance to HCC.
title: Involvement of bilateral middle cerebellar peduncles: differential diagnosis with case series
Creators: name: Sinci, Kazim Ayberk
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Anatomy
subject: Neuroradiology brain
subject: MR
subject: MR-Diffusion/Perfusion
subject: Education
subject: eLearning
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To describe the differential diagnosis of bilateral middle cerebellar peduncle lesions with case...
Parallel operation of bridge rectifiers without an interbridge reactor
Creators: name: Razak, Abdul
Publisher: name: Loughborough University
Year: 2020
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The thesis reports an investigation into the operation and performance of a 12-pulse parallel bridge rectifier system supplied from a three winding-transformer and operating without an interbridge reactor. The work has been undertaken in liaison with GEC Transmission and Distribution Projects Ltd, Stafford. The conventional centre-tapped interbridge reactor on the dc side allows each bridge to operate independently of the other in its normal 6-pulse manner making the analysis fairly straightforward if the usual assumption of perfectly smooth direct current is made. The omission of the reactor can provide very substantial cost and space savings in high power installations. However, its absence leads to interaction between the bridge rectifiers, and this is of special interest here. [Continues.]
A Tale of Two Saddles
Creators: name: Chandrasekaran, Venkatesa
name: Engelhardt, Netta
name: Fischetti, Sebastian
name: Hernández-Cuenca, Sergio
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We find a new on-shell replica wormhole in a computation of the generating functional of JT gravity coupled to matter. We show that this saddle has lower action than the disconnected one, and that it is stable under restriction to real Lorentzian sections, but can be unstable otherwise. The behavior of the classical generating functional thus may be strongly dependent on the signature of allowed perturbations. As part of our analysis, we give an LM-style construction for computing the on-shell action of replicated manifolds even as the number of boundaries approaches zero, including a type of one-step replica symmetry breaking that is necessary to capture the contribution of the new saddle. Our results are robust against quantum corrections; in fact, we find evidence that such corrections may sometimes stabilize this new saddle.
description: 48 + 26 pages, 26 figures
(401816) Mary Jobson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Role of epigenetic aberrations in the development and progression of human hepatocellular carcinoma
Creators: name: Pogribny, Igor P.
name: Rusyn, Ivan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Hepatocellular carcinoma (HCC) is one of the most lethal and prevalent cancers in humans. The molecular mechanisms leading to the development of HCC are extremely complicated and consist of prominent genetic, genomic, and epigenetic alterations. This review summarizes the current knowledge of the role of epigenetic aberrations, including changes in DNA methylation, histone modifications, and expression of microRNAs in the pathogenesis of HCC. It also emphasizes that identification of the underlying epigenetic alterations that drive cell transformation and promote development and progression of HCC is crucially important for understanding mechanisms of hepatocarcinogenesis, its detection, therapeutic intervention, and prevention.
Efficient hydrogen evolution reaction due to topological polarization
Creators: name: Jiang, Ming-Chun
name: Guo, Guang-Yu
name: Hirayama, Motoaki
name: Yu, Tonghua
name: Nomoto, Takuya
name: Arita, Ryotaro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Materials carrying topological surface states (TSS) provide a fascinating platform for the hydrogen evolution reaction (HER). Based on systematic first-principles calculations for $A_3 B$ ($A$ = Ni, Pd, Pt; $B$ = Si, Ge, Sn), we propose that topological electric polarization characterized by the Zak phase can be crucial to designing efficient catalysts for the HER. For $A_3 B$, we show that the Zak phase takes a nontrivial value of $π$ in the whole (111) projected Brillouin zone, which causes quantized electric polarization charge at the surface. There, depending on the adsorption sites, the hydrogen (H) atom hybridizes with the TSS rather than with the bulk states. When the hybridization has an intermediate character between the covalent and ionic bond, the H states are localized in the energy spectrum, and the change in the Gibbs free energy ($ΔG$) due to the H adsorption becomes small. Namely, the interaction between the H states and the substrate becomes considerably weak, which is a highly favorable situation for the HER. Notably, we show that $ΔG$ for Pt$_3$Sn and Pd$_3$Sn are just -0.066 and -0.092 eV, respectively, which are almost half of the value of Pt.
description: 12 pages, 6 figures
title: Hydatid disease : what do imaging findings show ?
Creators: name: CHARIF SAIBARI, RAYHANA
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Abdomen
subject: Liver
subject: Thorax
subject: CT
subject: Ultrasound
subject: Education
subject: Cysts
subject: Parasites
subject: Tropical diseases

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Illustrate the use of imaging methods in the diagnosis and evaluation of the extent of hydatid...
The Hurewicz theorem for cubical homology
Creators: name: Carranza, Daniel
name: Kapulkin, Chris
name: Tonks, Andrew
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55N10 (primary), 55P35, 55U35 (secondary)

description: We give an elementary proof of the Hurewicz theorem relating homotopy and homology groups of a cubical Kan complex. Our approach is based on the notion of a loop space of a cubical set, developed in a companion paper ``Homotopy groups of cubical sets'' by the first two authors.
description: Math. Z. (to appear); 17 pages; minor revision
Purely Singular Continuous Spectrum for Sturmian CMV Matrices via Strengthened Gordon Lemmas
Creators: name: Fillman, Jake
Publisher: name: arXiv
Year: 2015
Subjects: subject: Spectral Theory (math.SP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: The Gordon Lemma refers to a class of results in spectral theory which prove that strong local repetitions in the structure of an operator preclude the existence of eigenvalues for said operator. We expand on recent work of Ong and prove versions of the Gordon Lemma which are valid for CMV matrices and which do not restrict the parity of scales upon which repetitions occur. The key ingredient in our approach is a formula of Damanik-Fillman-Lukic-Yessen which relates two classes of transfer matrices for a given CMV operator. There are many examples to which our result can be applied. We apply our theorem to complete the classification of the spectral type of CMV matrices with Sturmian Verblunsky coefficients; we prove that such CMV matrices have purely singular continuous spectrum supported on a Cantor set of zero Lebesgue measure for all (irrational) frequencies and all phases. We also discuss applications to CMV matrices with Verblunsky coefficients generated by general codings of rotations.
description: 14 pages
title: Urgent gynecological pathology: What can the radiologist face.
Creators: name: Ruiz, Mónica
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Abdomen
subject: CT
subject: Acceptance testing
subject: Acute

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: To review the main urgent gynecologic pathologies that may present in an acute abdominal pain study, usually performed for other diagnostic suspicion, highlighting the key role of the radiologist for diagnosis and...
Scattering theory with both regular and singular perturbations
Creators: name: Mantile, Andrea
name: Posilicano, Andrea
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We provide an asymptotic completeness criterion and a representation formula for the scattering matrix of the scattering couple $(A_B,A)$, where both $A$ and $A_B$ are self-adjoint operator and $A_B$ formally corresponds to adding to $A$ two terms, one regular and the other singular. In particular, our abstract results apply to the couple $(Δ_B,Δ)$, where $Δ$ is the free self-adjoint Laplacian in $L^2(\mathbb{R}^3)$ and $Δ_B$ is a self-adjoint operator in a class of Laplacians with both a regular perturbation, given by a short-range potential, and a singular one describing boundary conditions (like Dirichlet, Neumann and semi-transparent $δ$ and $δ'$ ones) at the boundary of a open, bounded Lipschitz domain. The results hinge upon a limiting absorption principle for $A_B$ and a Krein-like formula for the resolvent difference $(-A_B+z)^{-1}-(-A+z)^{-1}$ which puts on an equal footing the regular (here, in the case of the Laplacian, a Kato-Rellich potential suffices) and the singular perturbations.
description: final version, to appear in Journal of Spectral Theory
title: Radiologic assessment of pericardial disease: much more than just a shield (from ECG to MRI).
Creators: name: Mendoza Ferradas, Francisco
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Cardiac
subject: CT
subject: MR
subject: MR-Functional imaging
subject: Education
subject: Infection
subject: Inflammation
subject: Tissue characterisation

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: *To describe the pericardial anatomy and physiology. *To outline and illustrate the role of the different imaging techniques (Echocardiogram, Chest X-Ray, CT, and MRI) in assessing the normal pericardial anatomy, ventricular coupling, and features...
On two-sided skew braces
Creators: name: Trappeniers, S.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Rings and Algebras (math.RA)
subject: Group Theory (math.GR)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: In order to study two-sided skew braces, we introduce the notion of weakly trivial skew braces. We give a classification of such skew braces and show that they are essential in the study of two-sided skew braces. As an application, we obtain new and generalize known results relating the additive and multiplicative group of two-sided skew braces. Further, we show that two a priori different notions of prime and semi-prime skew braces, as introduced by Konovalov, Smoktunowicz and Vendramin, coincide for two-sided skew braces.
description: 17 pages. Minor changes
(401810) William Davidson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(401811) Mary Fender
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
On Usual, Virtual and Welded knotted objects up to homotopy
Creators: name: Audoux, Benjamin
name: Bellingeri, Paolo
name: Meilhan, Jean-Baptiste
name: Wagner, Emmanuel
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25, 57M27, 20F36

description: We consider several classes of knotted objects, namely usual, virtual and welded pure braids and string links, and two equivalence relations on those objects, induced by either self-crossing changes or self-virtualizations. We provide a number of results which point out the differences between these various notions. The proofs are mainly based on the techniques of Gauss diagram formulae.
description: 14 pages. This paper is an expanded version of a former section, now removed (section 5 in versions 1 and 2) of arXiv:1407.0184. To appear in Journal of the Mathematical Society of Japan
title: Hemodialysis catheter implantation under imaging guidance. Technical aspects and role of the interventional radiologist.
Creators: name: Pérez Barón, Laura
Publisher: name: European Congress of Radiology
Year: 2022
Subjects: subject: Vascular
subject: Catheter venography
subject: CT-Angiography
subject: Fluoroscopy
subject: Catheters
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information and conflict of interest References
description: Learning objectives: Patients with chronic kidney disease, hemodialysis therapy can be performed through temporary and permanent venous access. We present the technical aspects of catheter placement through differents routes. Likewise, we describe concepts in the...
New equidistributions on plane trees and decompositions of $132$-avoiding permutations
Creators: name: Bai, Zi-Wei
name: Chen, Ricky X. F.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C05, 05A19, 05A15

description: Our main results in this paper are new equidistributions on plane trees and $132$-avoiding permutations, two closely related objects. As for the former, we discover a characteristic for vertices of plane trees that is equally distributed as the height for vertices. The latter is concerned with four distinct ways of decomposing a $132$-avoiding permutation into subsequences. We show combinatorially that the subsequence length distributions of the four decompositions are mutually equivalent, and there is a way to group the four into two groups such that each group is symmetric and the joint length distribution of one group is the same as that of the other. Some consequences are discussed. For instance, we provide a new refinement of the equidistribution of internal vertices and leaves, and present new sets of $132$-avoiding permutations that are counted by the Motzkin numbers and their refinements.
description: rewording, made some clarifications, added connection to Motzkin numbers. Comments are all welcome
Influence of Molecular Organization on the Electrical Characteristics of π-conjugated Self-assembled Monolayers
Creators: name: Lefevre, Xavier
name: Moggia, Fabrice
name: Segut, Olivier
name: Lin, Yu-Pu
name: Ksari, Younal
name: Delafosse, Gregory
name: Smaali, Kacem
name: Guerin, David
name: Derycke, Vincent
name: Vuillaume, Dominique
name: Lenfant, Stephane
name: Patrone, Lionel
name: Jousselme, Bruno
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two new thiol compounds with σ-π-σ structure were synthesized and self-assembled on gold substrates. The morphology and the structural characterization of SAMs assessed by infrared spectroscopy, contact angle, XPS, electrochemistry and scanning tunneling microscopy (STM) show the formation of monolayers. SAMs with a terthiophene (3TSH) core as conjugated system are much better organized compared to those with a naphthalene carbodiimide (NaphSH) core as demonstrated by the cyclic voltammetry and STM studies. The surface concentration of 3TSH and NaphSH is respectively three and six times lower than ordered SAMs of pure alkyl chains. A large number of I/V characteristics have been studied either by STS measurements on gold substrates or by C-AFM on gold nanodots. Transition Voltage Spectroscopy (TVS) was used to clearly identify the transport in these partially organized monolayers. The chemical nature of the conjugated system, donor for 3TSH and acceptor for NaphSH, involves an opposite rectification associated to the asymmetrical coupling of the molecular orbitals and the electrodes. The conductance histograms show that the 3TSH junctions are less dispersed than those of NaphSH junctions. This is explained by a better control of the molecular organization in the molecular junctions.
description: Full paper with supporting information
How Human and Organizational Factors Influence Software Teams Productivity in COVID-19 Pandemic: A Brazilian Survey
Creators: name: Bezerra, Carla I. M.
name: Filho, José Cezar De Souza
name: Coutinho, Emanuel F.
name: Gama, Alice
name: Ferreira, Ana Lívia
name: Andrade, Gabriel Leitão De
name: Feitosa, Carlos Eduardo
Publisher: name: Zenodo
Year: 2020

description: SBES RESEARCH TRACK - Software companies have adopted remote work to maintain practitioners safe during the COVID-19 outbreak worldwide. The remote environment in pandemic time brings some challenges, mainly for practitioners with limited experience with this work modality. Moreover, there are several factors in the environment that together with the change in the work routine can directly impact the teams productivity, such as human and organizational factors. To investigate this problem, we conducted a survey applied to software teams in Brazil to analyze how such factors can influence their productivity in the remote environment during the COVID-19 pandemic. The survey was guided by human and organizational factors identified in the literature that affect the productivity of software teams, such as: work environment, collaboration and organization of teams, communication, motivation, among others. Our survey obtained 58 participants from all Brazilian regions. As main conclusions, we identified that 74.1\% of the participants consider their productivity remains good or excellent, and 84.5\% feel motivated and have easy communication with their co-workers. Furthermore, the main factors influencing the productivity are external interruption, environment adaptation, and emotional issues.