cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modified geodetic brane cosmology
Creators: name: Cordero, Rubén
name: Cruz, Miguel
name: Molgado, Alberto
name: Rojas, Efraín
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore the cosmological implications provided by the geodetic brane gravity action corrected by an extrinsic curvature brane term, describing a codimension-1 brane embedded in a 5D fixed Minkowski spacetime. In the geodetic brane gravity action, we accommodate the correction term through a linear term in the extrinsic curvature swept out by the brane. We study the resulting geodetic-type equation of motion. Within a Friedmann-Robertson-Walker metric, we obtain a generalized Friedmann equation describing the associated cosmological evolution. We observe that, when the radiation-like energy contribution from the extra dimension is vanishing, this effective model leads to a self-(non-self)-accelerated expansion of the brane-like universe in dependence on the nature of the concomitant β-parameter associated with the correction, which resembles an analogous behaviour in the DGP brane cosmology. Several possibilities in the description for the cosmic evolution of this model are embodied and characterized by the involved density parameters related in turn to the cosmological constant, the geometry characterizing the model, the introduced β-parameter as well as the dark like-energy and the matter content on the brane.
description: 15 pages, 3 figures. New version corresponds to the one published in CQG
title: Radiofrequency ablation and alcoholisation: two safe and effective alternative treatments to surgery in clinically relevant benign thyroid nodules
Creators: name: Escudero Fernandez, Jose
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Interventional non-vascular
subject: Thyroid / Parathyroids
subject: Ultrasound
subject: Ablation procedures
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Benign thyroid nodules are very common, but their treatment is mainly justified if they become symptomatic or cause cosmetic alterations. Until a few years ago, surgery was the only treatment available, but radiofrequency ablation (RFA) and ethanol...
title: Einkommensungleichheit in Deutschland sinkt in Krisenzeiten temporär
Creators: name: Dany-Knedlik, Geraldine
name: Kriwoluzky, Alexander
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: E01 Measurement and Data on National Income and Product Accounts and Wealth; Environmental Accounts
subject: E32 Business Fluctuations; Cycles
subject: D31 Personal Income, Wealth, and Their Distributions
subject: income inequality
subject: business cycle
subject: German economy

description: Erstmals untersucht die vorliegende Studie, wie sich die Einkommensungleichheit in Deutschland mit den Konjunkturzyklen in den vergangenen 40 Jahren verändert hat. Diese temporären Änderungen sind vor allem deswegen wichtig, weil sie entscheidend für eine wirksame und zielgerichtete Ausgestaltung struktureller Umverteilungsmaßnahmen und stabilisierender Wirtschaftspolitik sind. Es zeigt sich, dass die Einkommensungleichheit in Deutschland mit dem Konjunkturzyklus schwankt und zwar prozyklisch. So verringert sich die Brutto- sowie die Nettoeinkommensungleichheit während Wirtschaftskrisen und steigt während Erholungsphasen. Dies liegt vor allem daran, dass die prozentualen Einkommensverluste beziehungsweise -gewinne bei den zehn Prozent mit den höchsten Einkommen stärker ausfallen als bei Personen mit geringeren Einkommen. Stabilisierende wirtschaftspolitische Maßnahmen, die Einkommensverluste in Krisenzeiten abfedern wie das Kurzarbeitergeld, verstärken die Prozyklizität leicht und wirken in Krisenzeiten der Einkommensungleichheit entgegen. Die Prozyklizität der Einkommensungleichheit ist politisch also durchaus erwünscht und wirkt beispielsweise durch die Sozialversicherung von Geringverdienenden gegen negative Schocks wohlfahrtsmaximierend. Inwieweit der Anstieg der Einkommensungleichheit während Boomphasen dafür in Kauf genommen werden muss, ist allerdings bislang unklar.
description: DIW Wochenbericht, 88 (2021), 46, S. 755-761
title: Die sinkende Ungleichheit in Krisenzeiten ist zum Teil politisch erwünscht: Interview
Creators: name: Dany-Knedlik, Geraldine
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021

description: DIW Wochenbericht, 88 (2021), 46, S. 762
Auxiliary variable transformations for intractable distributions
Creators: name: Vanetti, Paul Justin Cesare
Publisher: name: University of British Columbia
Year: 2013

description: Expectations over probability distributions can be approximated by Markov chain Monte Carlo methods when the density can be evaluated up to a normalizing constant. However, there exist cases where this density takes on the form of an intractable integral and therefore cannot be computed exactly. We explore a class of auxiliary variable methods which allow correct sampling from such distributions. In some cases, existing approaches which employ these methods can be inefficient, requiring long computation times. We identify causes for this inefficiency and demonstrate how this can be improved when we can develop a reasonable importance sampling estimate of the integral. We discuss applications for our methods, placing a particular focus on the Dirichlet process with a non-conjugate base distribution. We show how the auxiliary variables can be interpreted in this non-parametric context, and how we can develop proposals which provide greater computational efficiency.
Evidence for geometry-dependent universal fluctuations of the Kardar-Parisi-Zhang interfaces in liquid-crystal turbulence
Creators: name: Takeuchi, Kazumasa A.
name: Sano, Masaki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We provide a comprehensive report on scale-invariant fluctuations of growing interfaces in liquid-crystal turbulence, for which we recently found evidence that they belong to the Kardar-Parisi-Zhang (KPZ) universality class for 1+1 dimensions [Phys. Rev. Lett. 104, 230601 (2010); Sci. Rep. 1, 34 (2011)]. Here we investigate both circular and flat interfaces and report their statistics in detail. First we demonstrate that their fluctuations show not only the KPZ scaling exponents but beyond: they asymptotically share even the precise forms of the distribution function and the spatial correlation function in common with solvable models of the KPZ class, demonstrating also an intimate relation to random matrix theory. We then determine other statistical properties for which no exact theoretical predictions were made, in particular the temporal correlation function and the persistence probabilities. Experimental results on finite-time effects and extreme-value statistics are also presented. Throughout the paper, emphasis is put on how the universal statistical properties depend on the global geometry of the interfaces, i.e., whether the interfaces are circular or flat. We thereby corroborate the powerful yet geometry-dependent universality of the KPZ class, which governs growing interfaces driven out of equilibrium.
description: 31 pages, 21 figures, 1 table; references updated (v2,v3); Fig.19 updated & minor changes in text (v3); final version (v4); J. Stat. Phys. Online First (2012)
title: Improving diagnostic accuracy of tumor thrombus versus bland thrombus with the aid of SPECTRAL CT.
Creators: name: Li, Tianyang
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cancer
subject: Computer Applications-Detection, diagnosis
subject: CT-Angiography
subject: CT
subject: Vascular
subject: Oncology
subject: Computer applications

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Brief overview of dual-CT setups and the physics behind SPECTRAL CT , a specific type of dual energy CT platforms. Highlight how SPECTRAL CT can aid in the diagnosis of tumor thrombus versus bland thrombus utilizing multiple case based...
Quasi-Bayesian analysis of nonparametric instrumental variables models
Creators: name: Kato, Kengo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: This paper aims at developing a quasi-Bayesian analysis of the nonparametric instrumental variables model, with a focus on the asymptotic properties of quasi-posterior distributions. In this paper, instead of assuming a distributional assumption on the data generating process, we consider a quasi-likelihood induced from the conditional moment restriction, and put priors on the function-valued parameter. We call the resulting posterior quasi-posterior, which corresponds to ``Gibbs posterior'' in the literature. Here we focus on priors constructed on slowly growing finite-dimensional sieves. We derive rates of contraction and a nonparametric Bernstein-von Mises type result for the quasi-posterior distribution, and rates of convergence for the quasi-Bayes estimator defined by the posterior expectation. We show that, with priors suitably chosen, the quasi-posterior distribution (the quasi-Bayes estimator) attains the minimax optimal rate of contraction (convergence, resp.). These results greatly sharpen the previous related work.
description: Published in at http://dx.doi.org/10.1214/13-AOS1150 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Schulen sollten versuchen, Eltern aller Bildungsgruppen für Schulgremien zu gewinnen: Interview
Creators: name: Marcus, Jan
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021

description: DIW Wochenbericht, 88 (2021), 45, S. 748
The SOPHIE search for northern extrasolar planets. V. Follow-up of ELODIE candidates: Jupiter-analogs around Sun-like stars
Creators: name: Boisse, I.
name: Pepe, F.
name: Perrier, C.
name: Queloz, D.
name: Bonfils, X.
name: Bouchy, F.
name: Santos, N. C.
name: Arnold, L.
name: Beuzit, J. -L.
name: Dìaz, R. F.
name: Delfosse, X.
name: Eggenberger, A.
name: Ehrenreich, D.
name: Forveille, T.
name: Hébrard, G.
name: Lagrange, A. -M.
name: Lovis, C.
name: Mayor, M.
name: Moutou, C.
name: Naef, D.
name: Santerne, A.
name: Ségransan, D.
name: Sivan, J. -P.
name: Udry, S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present radial-velocity measurements obtained in a programs underway to search for extrasolar planets with the spectrograph SOPHIE at the 1.93-m telescope of the Haute-Provence Observatory. Targets were selected from catalogs observed with ELODIE, mounted previously at the telescope, in order to detect long-period planets with an extended database close to 15 years. Two new Jupiter-analog candidates are reported to orbit the bright stars HD150706 and HD222155 in 16.1 and 10.9 yr at 6.7 (+4.0,-1.4) and 5.1(+0.6,-0.7) AU and to have minimum masses of 2.71 (+1.44,-0.66) and 1.90 (+0.67,-0.53) M_Jup, respectively. Using the measurements from ELODIE and SOPHIE, we refine the parameters of the long-period planets HD154345b and HD89307b, and publish the first reliable orbit for HD24040b. This last companion has a minimum mass of 4.01 +/- 0.49 M_Jup orbiting its star in 10.0 yr at 4.92 +/- 0.38 AU. Moreover, the data provide evidence of a third bound object in the HD24040 system. With a surrounding dust debris disk, HD150706 is an active G0 dwarf for which we partially corrected the effect of the stellar spot on the SOPHIE radial-velocities. HD222155 is an inactive G2V star. On the basis of the previous findings of Lovis and collaborators and since no significant correlation between the radial-velocity variations and the activity index are found in the SOPHIE data, these variations are not expected to be only due to stellar magnetic cycles. Finally, we discuss the main properties of this new population of long-period Jupiter-mass planets, which for the moment, consists of fewer than 20 candidates. These stars are preferential targets either for direct-imaging or astrometry follow-up to constrain the system parameters and for higher precision radial-velocity to search for lower mass planets, aiming to find a Solar System twin.
description: accepted for publication in Astronomy & Astrophysics
title: Akademikerinnen engagieren sich häufiger als andere Mütter in der Schule ihrer Kinder
Creators: name: Marcus, Jan
name: Spieß, C. Katharina
name: Waights, Sevrin
name: Judy, Andrew
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: I20 Education and Research Institutions: General
subject: I24 Education and Inequality
subject: Parental engagement
subject: school engagement
subject: educational inequality
subject: SOEP
subject: NEPS

description: Dass der Bildungserfolg von Kindern stark mit dem elterlichen Bildungshintergrund zusammenhängt, belegen zahlreiche Studien. Inwiefern sich das Engagement von Eltern in Schulen, also etwa der Besuch von Elternabenden oder die Mitarbeit in Elternvertretungen, nach der Bildung unterscheidet, ist weniger bekannt. Dem geht dieser Bericht auf Grundlage von Daten des Sozio-oekonomischen Panels (SOEP) und des Nationalen Bildungspanels (NEPS) nach. Dabei wird das elterliche Engagement in Schulen mit dem häuslichen Engagement etwa bei den Hausaufgaben verglichen. Der Fokus liegt auf den Müttern, da diese in den meisten Haushalten nach wie vor mehr Zeit mit den Kindern verbringen als Väter und somit eher die Ansprechpartnerinnen für schulische Angelegenheiten sind. Mütter mit einem abgeschlossenen Studium bringen sich demnach tendenziell stärker in schulische Aktivitäten ein. Sie sind beispielsweise häufiger in der Elternvertretung aktiv und unterstützen häufiger bei schulischen Veranstaltungen, während Nichtakademikerinnen ihren Kindern häufiger zu Hause bei Hausaufgaben und Internetrecherchen helfen. Auch wenn die direkte Wirkung des elterlichen Schulengagements auf die schulischen Leistungen ihrer Kinder auf Basis repräsentativer Daten empirisch wenig erforscht ist, spricht einiges dafür, dass bereits bestehende Bildungsungleichheiten verstärkt werden. Doch auch unabhängig davon wäre es vorteilhaft, wenn beispielsweise in Schulgremien die Interessen aller Eltern vertreten würden. Dementsprechend sollten sowohl die Politik als auch die Schulen verstärkt Anstrengungen unternehmen, Eltern aus allen Bildungsgruppen für solche Aufgaben zu gewinnen.
description: DIW Wochenbericht, 88 (2021), 45, S. 739-747
Efficient High-Dimensional Inference in the Multiple Measurement Vector Problem
Creators: name: Ziniel, Justin
name: Schniter, Philip
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this work, a Bayesian approximate message passing algorithm is proposed for solving the multiple measurement vector (MMV) problem in compressive sensing, in which a collection of sparse signal vectors that share a common support are recovered from undersampled noisy measurements. The algorithm, AMP-MMV, is capable of exploiting temporal correlations in the amplitudes of non-zero coefficients, and provides soft estimates of the signal vectors as well as the underlying support. Central to the proposed approach is an extension of recently developed approximate message passing techniques to the amplitude-correlated MMV setting. Aided by these techniques, AMP-MMV offers a computational complexity that is linear in all problem dimensions. In order to allow for automatic parameter tuning, an expectation-maximization algorithm that complements AMP-MMV is described. Finally, a detailed numerical study demonstrates the power of the proposed approach and its particular suitability for application to high-dimensional problems.
description: 28 pages, 9 figures
Enhancing particle methods for fluid simulation in computer graphics
Creators: name: Schechter, Hagit
Publisher: name: University of British Columbia
Year: 2013

description: We introduce novel methods for enriched Lagrangian fluid simulation in three distinct areas: smoke animation, liquid animation, and surfacing of simulation particle data. The techniques share a common goal, to efficiently enhance realism of natural-phenomena animations in particle simulation framework. Sub-Grid Turbulence adds synthesized small scale detail to large scale smoke simulation. The transport, diffusion and spectral cascade of turbulent energy are captured, whereas they are left unresolved on a typical simulation grid. Ghost-SPH handling of free-surface and solid boundary conditions in Smoothed Particle Hydrodynamics liquid simulation captures realistic cohesion for the first time and avoids the spurious numerical errors of previous approaches. Ghost particles are carefully seeded in the air and solid regions near the fluid and are assigned with extrapolated fluid quantities to reach correct boundary conditions. The Beta Mesh is a new method for reconstructing mostly temporally coherent surface meshes from particles representing the volume of a liquid. While current particle surfacing techniques address the geometrical characteristics of the surface, the focus in Beta Mesh is producing a surface which varies smoothly in time, outside of topological changes, while preserving essential geometrical properties.
Organizing for hybrid and information warfare
Creators: name: Miller, Travis Wayne
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: Hybrid warfare
Information warfare
Three Warfares
Gerasimov Doctrine
Operation QRHELPFUL
Joint Interagency Task Force

description: This professional report argues that current national security documents and the national security structure are not optimized to conduct hybrid and information warfare. It reviews an abundance of literature to first understand the United States national security strategy, coupled with the reemergence of great power competition. Four propositions emerged from the readings: national security publications are incoherent; a strategic paralysis has set in with the abundance of literature; there is a lack of organizational innovation; and the instruments of national power have tilted towards information. Following this review, the analysis then explores Russia’s great power competition strategy through private/public, legal/illegal, and regular/irregular lenses. China’s information warfare strategy, Three Warfares, which includes propaganda, public opinion, and legal warfare, provides the final piece of analysis on great power competition. This conflict is particularly vast—the hybrid approach calls on all elements of a nation's society; information is the dominant power shaping perceptions, decisions, opinions, and behaviors; and all this is conducted in the gray zone between peace and total war. The report then investigates the most recent declassified information warfare campaign against a great power, Operation QRHELPFUL, and a recent example of information leveraged as the main effort in a combined joint military operation. The United States can organize more effectively for the challenges it confronts by understanding the principles, lessons learned, and the context of great power competition. This requires vertical and horizontal organizational efforts, which include a shift in policy, a new organizational framework, assigning a lead, and adopting a whole-of-society approach.
title: Johann Clemens Müller
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Johann Clemens Müller as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: J. S. Müller
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: J. S. Müller as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Liver surface nodularity score as a new predictor of overall survival in patients with HCC treated by TACE.
Creators: name: abou elkassem, Asser
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Outcomes
subject: Chemoembolisation
subject: CT
subject: Oncology
subject: Liver

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Hepatocellular carcinoma (HCC) is the fifth most common cancer in the world and one of the leading cause of cancer-related deaths. Trans-arterial chemo-embolization (TACE) has been shown to increase overall survival (OS) in patients with locally...
Higgs searches and singlet scalar dark matter: Combined constraints from XENON 100 and the LHC
Creators: name: Mambrini, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: XENON100 and the LHC are two of the most promising machines to test the physics beyond the Standard Model. In the meantime, indirect hints push us to believe that the dark matter and Higgs boson could be the two next fundamental particles to be discovered. Whereas ATLAS and CMS have just released their new limits on the Higgs searches, XENON100 obtained very recently strong constraints on DM-proton elastic scattering. In this work, we show that when we combined WMAP and the most recent results of XENON100, the invisible width of the Higgs to scalar dark matter is negligible($\lesssim 10%$), except in a small region with very light dark matter ($\lesssim 10$ GeV) not yet excluded by XENON100 or around 60 GeV where the ratio can reach 50% to 60%. The new results released by the Higgs searches of ATLAS and CMS set very strong limits on the elastic scattering cross section, even restricting it to the region $8 \times 10^{-46} \mrm{cm^2} \lesssim σ_{S-p}^{SI}\lesssim 2 \times 10^{-45} \mrm{cm^{2}}$ in the hypothesis $135 \mrm{GeV} \lesssim M_H \lesssim 155 \mrm{GeV}$.
description: 9 pages, 8 figures, final version to appear in PRD
Study of ageing in Al-Mg-Si alloys by positron annihilation spectroscopy
Creators: name: Banhart, J.
name: Liu, M.
name: Yan, Y.
name: Liang, Z.
name: Chang, C. S. T.
name: Elsayed, M.
name: Lay, M. D. H.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In many common Al-Mg-Si alloys (6000 series) intermediate storage at or near 'room temperature' after solutionising leads to pronounced changes of the precipitation kinetics during the ensuing artificial ageing step at \approx 180°C. This is not only an annoyance in production, but also a challenge for researchers. We studied the kinetics of natural 'room temperature' ageing (NA) in Al-Mg-Si alloys by means of various different techniques, namely electrical resistivity and hardness measurement, thermoanalysis and positron lifetime and Doppler broadening (DB) spectroscopy to identify the stages in which the negative effect of NA on artificial ageing might appear. Positron lifetime measurements were carried out in a fast mode, allowing us to measure average lifetimes in below 1 minute. DB measurements were carried out with a single detector and a 68Ge positron source by employing high momentum analysis. The various measurements show that NA is much more complex than anticipated and at least four different stages can be distinguished. The nature of these stages cannot be given with certainty, but a possible sequence includes vacancy diffusion to individual solute atoms, nucleation of solute clusters, Mg agglomeration to clusters and coarsening or ordering of such clusters. Positron lifetime measurements after more complex ageing treatments involving storage at 0°C, 20°C and 180°C have also been carried out and help to understand the mechanisms involved.
Exchange constants and spin waves of the orbital ordered, non-collinear spinel MnV$_2$O$_4$
Creators: name: Nanguneri, R.
name: Savrasov, S. Y.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the exchange constants of MnV$_2$O$_4$ using magnetic force theorem and local spin density approximation of density functional theory supplemented with a correction due to on-site Hubbard interaction U. We obtain the exchanges for three different orbital orderings of the Vanadium atoms of the spinel. We then map the exchange constants to a Heisenberg model with single-ion anisotropy and solve for the spin-wave excitations in the non-collinear, low temperature phase of the spinel. The single-ion anisotropy parameters are obtained from an atomic multiplet exact-diagonalization program, taking into effect the crystal-field splitting and the spin-orbit coupling. We find good agreement between the spin waves of one of our orbital ordered setups with previously reported experimental spin waves as determined by neutron scattering. We can therefore determine the correct orbital order from various proposals that exist in the literature.
description: 9 pages, 6 figures
title: Nicht nur Einkommen und Lebenserwartung, auch das Pflegerisiko ist sozial ungleich verteilt: Interview
Creators: name: Haan, Peter
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: I10 Health: General

description: DIW Wochenbericht, 88 (2021), 44, S. 735
title: CT-based liver surface nodularity score for noninvasive assessment of clinically significant portal hypertension.
Creators: name: Abdel Aal, Ahmed
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: CT
subject: Liver
subject: Diagnostic procedure
subject: Outcomes
subject: Varices

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Portal hypertension is the main consequence of cirrhosis, progressively increases with higher stages of disease, and responsible for the majority of complications. Portal pressures as determined by the hepatic venous pressure gradient (HVPG) are...
title: Differentiation between benign post-operative change and recurrences after breast cancer surgery in multimodality imaging: a pictorial review
Creators: name: Lee, Hyung Ju
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Breast
subject: Mammography
subject: Ultrasound
subject: MR
subject: Complications
subject: Surgery
subject: Education
subject: Cancer
subject: Inflammation
subject: Metastases

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Tounderstandrecurrent breast cancer epidemiologyand risk factors. To understand various surgical treatment methods of breast cancer. Tounderstandvarious imaging findings of post-operative benign findingsafter breast cancer surgery. To understand...
title: Comparison of the Characteristics of Invasive Carcinoma with Medullary Features and Invasive Ductal Carcinoma of the Breast
Creators: name: Song, Boram
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Cancer
subject: Comparative studies
subject: Ultrasound
subject: Breast

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Breast cancer is the most common type of cancer in females worldwide (1).Medullary breast carcinoma is a rare histological type of breast cancer, accounting for 1% to 7% of all breast cancers (2). Invasive ductal carcinoma with medullary features...
title: Bone mineral density errors are common! What the radiologist should know about bone densitometry.
Creators: name: Pasetto, Stefano
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Osteoporosis
subject: Technical aspects
subject: Absorptiometry / Bone densitometry
subject: Musculoskeletal bone

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Bone mineral density (BMD) testing is used to diagnose osteoporosis, assess fracture risk and monitor changes in BMD over time.Incorrect BMD acquisition or reporting may generate unnecessary medical expenses and lead to inappropriateclinical and...
title: Usefulness of super selective arterial spin labeling for brain perfusion
Creators: name: Yu, Na-Eun
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Head and neck
subject: Neuroradiology brain
subject: MR
subject: Technical aspects
subject: Quality assurance

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Cerebral blood vessel images are important because they give detailed information about the condition and function of the vessels and can affect the treatment option and treatment plan. Perfusion magnetic resonance imaging (Perfusion MRI) is very...
title: The establishment of a simultaneous measurement method for scatter radiation in the X-ray room and the effective utilization of the distribution
Creators: name: Suzuki, Shoichi
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Radioprotection / Radiation dose
subject: Experimental
subject: Radiation safety
subject: Quality assurance

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: In the radiology room, operators performing tests wear protective clothing while working to prevent radiation exposure. Operator exposure and device load are problematic even when obtaining scattered radiation distributions, and radiation safety...
Algebraic vector bundles on spheres
Creators: name: Asok, Aravind
name: Fasel, Jean
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: Algebraic Topology (math.AT)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 14F42, 55S35, 19D45, 13C10, 19A13

description: We determine the first non-stable ${\mathbb A}^1$-homotopy sheaf of $SL_n$. Using techniques of obstruction theory involving the ${\mathbb A}^1$-Postnikov tower, supported by some ideas from the theory of unimodular rows, we classify vector bundles of rank $\geq d-1$ on split smooth affine quadrics of dimension $2d-1$. These computations allow us to answer a question posed by Nori, which gives a criterion for completability of certain unimodular rows. Furthermore, we study compatibility of our computations of ${\mathbb A}^1$-homotopy sheaves with real and complex realization.
description: 35 pages; final version (before page proofs) to appear J. Top. Significantly reorganized and incorporates some material from http://arxiv.org/abs/1204.0770 (which will also soon be replaced)
Perceptions of Scientific Uncertainty
Creators: name: Anglin, Stephanie
Publisher: name: OSF Registries
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology

description: This research seeks to examine the relationship between perceptions of scientific uncertainty and how people understand, respond to, and support scientific research, and test the validity of a new measure of perceptions of scientific uncertainty.
title: Pflegebedürftigkeit hängt von der sozialen Stellung ab
Creators: name: Geyer, Johannes
name: Haan, Peter
name: Kröger, Hannes
name: Schaller, Maximilian
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: I10 Health: General
subject: I14 Health and Inequality
subject: SOEP
subject: Long-term care
subject: Inequality

description: Ärmere Personen haben eine deutlich geringere Lebenserwartung als Personen mit höheren Einkommen. Dieser Wochenbericht zeigt auf Basis der Daten des Sozio-oekonomischen Panels, dass sie zudem häufiger und früher pflegebedürftig werden. Gleiches gilt für Arbeiter und Arbeiterinnen im Vergleich zu Beamten und Beamtinnen sowie für Menschen mit hohen Arbeitsbelastungen im Vergleich zu Personen mit niedrigen beruflichen Belastungen. Das Risiko der Pflegebedürftigkeit wird also entscheidend durch Gesellschaft, Einkommen und Arbeitswelt beeinflusst. Um diese Ungleichheit zu reduzieren, sind sozialpolitische Reformen notwendig. Denn die bestehenden sozialen Sicherungssysteme kompensieren diese ungleichen Belastungen nur teilweise. Eine nachhaltige Politik muss schon in der Erwerbsphase ansetzten und dort Belastungen reduzieren, sodass das Pflegerisiko präventiv verringert wird. Um die Ungleichheit kurzfristig zu reduzieren, sollten die privaten Zuzahlungen gesenkt und stärker vom verfügbaren Einkommen abhängig gemacht werden. Zielführend ist auch eine Bürgerversicherung, also die Verbindung von privater und gesetzlicher Pflegeversicherung, da das Pflegerisiko von Menschen mit privater Pflegeversicherung deutlich geringer ist.
description: DIW Wochenbericht, 88 (2021), 44, S. 727-734
Arbitrarily loss-tolerant Einstein-Podolsky-Rosen steering allowing a demonstration over 1 km of optical fiber with no detection loophole
Creators: name: Bennet, A. J.
name: Evans, D. A.
name: Saunders, D. J.
name: Branciard, C.
name: Cavalcanti, E. G.
name: Wiseman, H. M.
name: Pryde, G. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Demonstrating nonclassical effects over longer and longer distances is essential for both quantum technology and fundamental science. The main challenge is loss of photons during propagation, because considering only those cases where photons are detected opens a "detection loophole" in security whenever parties or devices are untrusted. Einstein-Podolsky-Rosen (EPR) steering is equivalent to an entanglement-verification task in which one party (device) is untrusted. We derive arbitrarily loss-tolerant tests, enabling us to perform a detection-loophole-free demonstration of EPR-steering with parties separated by a coiled 1 km optical fiber, with a total loss of 8.9 dB (87%).
description: Accepted for publication in Physical Review X. This is the accepted version
The clustering of galaxies as a function of their photometrically-estimated atomic gas content
Creators: name: Li, Cheng
name: Kauffmann, Guinevere
name: Fu, Jian
name: Wang, Jing
name: Catinella, Barbara
name: Fabello, Silvia
name: Schiminovich, David
name: Zhang, Wei
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We introduce a new photometric estimator of the HI mass fraction (M_HI/M_*) in local galaxies, which is a linear combination of four parameters: stellar mass, stellar surface mass density, NUV-r colour, and g-i colour gradient. It is calibrated using samples of nearby galaxies (0.025
description: 14 pages, 10 figures, accepted for publication in MNRAS, slightly revised in the text
T-duality of current algebras and their quantization
Creators: name: Hekmati, Pedram
name: Mathai, Varghese
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 17B63, 17B69, 53D18, 83E30

description: In this paper we show that the T-duality transform of Bouwknegt, Evslin and Mathai applies to determine isomorphisms of certain current algebras and their associated vertex algebras on topologically distinct T-dual spacetimes compactified to circle bundles with $H$-flux.
description: 21 pages. 3 references added and to appear in Contemp. Math
title: Role of neurosonography in predicting clinical outcome in newborns with hypoxic ischemic encephalopathy (HIE)
Creators: name: SARANGI, PRADOSH
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: Diagnostic procedure
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Paediatric
subject: Neuroradiology brain
subject: CNS
subject: Outcomes

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Neonatal hypoxic ischemic encephalopathy (HIE) is one of the most common causes of severe neurologic deficits in children, apart from being the third most common cause of neonatal deaths worldwide 1 occurring in about 1.5/1000 live births 2...
Study of Monte Carlo approach to experimental uncertainty propagation with MSTW 2008 PDFs
Creators: name: Watt, G.
name: Thorne, R. S.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the Monte Carlo approach to propagation of experimental uncertainties within the context of the established "MSTW 2008" global analysis of parton distribution functions (PDFs) of the proton at next-to-leading order in the strong coupling. We show that the Monte Carlo approach using replicas of the original data gives PDF uncertainties in good agreement with the usual Hessian approach using the standard Delta(chi^2) = 1 criterion, then we explore potential parameterisation bias by increasing the number of free parameters, concluding that any parameterisation bias is likely to be small, with the exception of the valence-quark distributions at low momentum fractions x. We motivate the need for a larger tolerance, Delta(chi^2) > 1, by making fits to restricted data sets and idealised consistent or inconsistent pseudodata. Instead of using data replicas, we alternatively produce PDF sets randomly distributed according to the covariance matrix of fit parameters including appropriate tolerance values, then we demonstrate a simpler method to produce an arbitrary number of random predictions on-the-fly from the existing eigenvector PDF sets. Finally, as a simple example application, we use Bayesian reweighting to study the effect of recent LHC data on the lepton charge asymmetry from W boson decays.
description: 37 pages, 17 figures. v2: version published in JHEP. Supplementary material at http://mstwpdf.hepforge.org/random/
title: Overview of Orbital pathologies by Magnetic Resonance Imaging- Our Experience
Creators: name: Bhagwat, Kishan
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Eyes
subject: Head and neck
subject: Anatomy
subject: MR
subject: PACS
subject: Diagnostic procedure
subject: Technical aspects
subject: Pathology

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: To evaluate the role Magnetic Resonance Imaging in pathologies of orbit. To find out the most common orbital pathologies encountered in our...
title: One-phonon isovector 2⁺₁,MS state in the neutron rich nucleus ¹³²Te
Creators: name: Danchev, M.
name: Rainovski, G.
name: Pietralla, N.
name: Gargano, A.
name: Covello, A.
name: Baktash, C.
name: Beene, J. R.
name: Bingham, C. R.
name: Galindo-Uribarri, A.
name: Gladnishki, K. A.
name: Gross, C. J.
name: Ponomarev, V. Yu
name: Radford, D. C.
name: Riedinger, L. L.
name: Scheck, M.
name: Stuchbery, A. E.
name: Wambach, J.
name: Yu, C.-H.
name: Zamfir, N. V.
Publisher: name: IOP Publishing
Year: 2024

description: The 2⁺₂ state in ¹³²Te is identified as the one-phonon MSS in a projectile Coulomb excitation experiment presenting a firm example of a MSS in unstable, neutron rich nuclei. The results of shell-model calculations based on the low-momentum interaction Vlow-k are in good agreement with experiment demonstrating the ability of the effective shell-model interaction to produce states of mixed-symmetry character.
title: Knowing the art of brain ultrasound
Creators: name: Vicente Zapata, Irene
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Education and training
subject: Diagnostic procedure
subject: Ultrasound
subject: Paediatric

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To know an adequate technique to perform a brain ultrasound, its advantages and limitations as well as the main indications in neonatal...
Stretching Semiflexible Polymer Chains: Evidence for the Importance of Excluded Volume Effects from Monte Carlo Simulation
Creators: name: Hsu, Hsiao-Ping
name: Binder, Kurt
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Semiflexible macromolecules in dilute solution under very good solvent conditions are modeled by self-avoiding walks on the simple cubic lattice ($d=3$ dimensions) and square lattice ($d=2$ dimensions), varying chain stiffness by an energy penalty $ε_b$ for chain bending. In the absence of excluded volume interactions, the persistence length $\ell_p$ of the polymers would then simply be $\ell_p=\ell_b(2d-2)^{-1}q_b^{-1}$ with $q_b= \exp(-ε_b/k_BT)$, the bond length $\ell_b$ being the lattice spacing, and $k_BT$ is the thermal energy. Using Monte Carlo simulations applying the pruned-enriched Rosenbluth method (PERM), both $q_b$ and the chain length $N$ are varied over a wide range $(0.005 \leq q_b \leq 1, \; N \leq 50000$), and also a stretching force $f$ is applied to one chain end (fixing the other end at the origin). In the absence of this force, in $d=2$ a single crossover from rod-like behavior (for contour lengths less than $\ell_p$) to swollen coils occurs, invalidating the Kratky-Porod model, while in $d=3$ a double crossover occurs, from rods to Gaussian coils (as implied by the Kratky-Porod model) and then to coils that are swollen due to the excluded volume interaction. If the stretching force is applied, excluded volume interactions matter for the force versus extension relation irrespective of chain stiffness in $d=2$, while theories based on the Kratky-Porod model are found to work in $d=3$ for stiff chains in an intermediate regime of chain extensions. While for $q_b \ll 1$ in this model a persistence length can be estimated from the initial decay of bond-orientational correlations, it is argued that this is not possible for more complex wormlike chains (e.g. bottle-brush polymers). Consequences for the proper interpretation of experiments are briefly discussed.
description: 23 pages, 17 figures, 2 tables, to be published in J. Chem. Phys. (2011)
title: Höherer Frauenanteil im Bundestag ist vor allem eine Frage des politischen Willens: Interview
Creators: name: Müller, Kai-Uwe
name: Wittenberg, Erich
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021

description: DIW Wochenbericht, 88 (2021), 43, S. 720
title: Gekommen, um (unterrepräsentiert) zu bleiben? Frauenanteil im Deutschen Bundestag stagniert seit über 20 Jahren bei einem Drittel
Creators: name: Blome, Agnes
name: Müller, Kai-Uwe
Publisher: name: DIW - Deutsches Institut für Wirtschaftsforschung
Year: 2021
Subjects: subject: B54 Feminist Economics
subject: P16 Capitalist Systems: Political Economy
subject: D72 Political Processes: Rent-seeking, Lobbying, Elections, Legislatures, and Voting Behavior
subject: women’s representation
subject: parliamentary elections
subject: parties

description: Die 16-jährige Kanzlerinnenschaft Angela Merkels, in der erstmalig eine Frau eine Bundesregierung führte, wurde vielfach als Meilenstein für Frauen in der Politik gewürdigt. Dies hat sich jedoch nicht in der parlamentarischen Repräsentation von Frauen niedergeschlagen. Der Frauenanteil im Bundestag stagniert seit 1998 bei etwa einem Drittel. Während Grüne (rund 59 Prozent) und Linke (knapp 54 Prozent) die 50-Prozent-Marke im kürzlich gewählten Bundestag sogar überschreiten, sind SPD (knapp 42 Prozent), CDU/CSU und FDP (jeweils rund 24 Prozent) und AfD (gut 13 Prozent) unterschiedlich weit davon entfernt. Nachholbedarf besteht insbesondere bei Direktmandaten, die Frauen nur zu einem Viertel innehaben. Sie werden deutlich seltener aufgestellt, obwohl Direktkandidatinnen im Mittel ähnlich häufig gewählt werden wie -kandidaten. Grüne, SPD und Linke erhöhen den Frauenanteil in ihren Fraktionen systematisch durch aussichtsreiche Listenplätze für die Zweitstimme. Bei CDU/CSU und FDP nehmen hingegen Männer günstigere Listenpositionen ein. Die Daten zeigen, dass Parteien mit selbst gesetzten Frauenquoten ihre Ziele bei den über die Listen per Zweitstimme in den Bundestag eingezogenen Abgeordneten erreichen. Diese Quoten sind allerdings unterschiedlich ambitioniert und fehlen bei FDP und AfD völlig. Insofern ist es eine Frage des politischen Willens innerhalb der Parteien, den Frauenanteil im Bundestag künftig weiter zu erhöhen.
description: DIW Wochenbericht, 88 (2021), 43, S. 711-719
Cachekata : memory hierarchy optimization via dynamic binary translation
Creators: name: Taylor, Nathan Bryan
Publisher: name: University of British Columbia
Year: 2013

description: As hardware parallelism continues to increase, CPU caches can no longer be considered a transparent, hardware-level performance optimization. Adverse cache impact on performance is entirely workload-dependent and may depend on runtime factors. The operating system must begin to treat CPU caches like any other shared hardware resource to effectively support workloads on parallel hardware. We present a binary translation system called Cachekata that provides a byte-granular memory remapping facility within the OS in an efficient manner. Cachekata is incorporated into a larger system, Plastic, which diagnoses and corrects instances of false sharing occurring within running applications. Our implementation is able to achieve a 3-6x performance improvement on known examples of false sharing in parallel benchmarks.
title: Dose assessment of total hip arthroplasty (THA) radiographic examination using EOS 2D/3D imaging system
Creators: name: Marconi, Giacomo
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pelvis
subject: Bones
subject: Radiographers
subject: Digital radiography
subject: Radiation safety
subject: Dosimetric comparison

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: We assessed radiation dose exposure of patients undergoing radiographic hip examination before and after total hip arthroplasty with EOS 2D/3D imaging system. Our purpose is to evaluate whether prosthetic implants increase the dose as observed with...
title: Color Doppler ultrasonography and multidetectoer computed tomography angiography in diagnosis of uterine arteriovenous malformation
Creators: name: Abd El-Gawad, Lamiaa
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Arteriovenous malformations
subject: Diagnostic procedure
subject: Ultrasound-Colour Doppler
subject: CT-Angiography
subject: Genital / Reproductive system female

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Familiarization with this uncommon condition. Understand etiology, pathogenesis and clinical presentation. Be able to confirm the diagnosis. Describe US, Doppler and CTA findings of uterine...