cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Chemoembolization of hepatocellular carcinoma with drug eluting beads: Better primary and six month response rate using drug eluting beads of smaller diameter.
Creators: name: Wald, Christoph
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Cirrhosis
subject: Outcomes analysis
subject: Chemoembolisation
subject: MR
subject: CT
subject: Oncology
subject: Interventional vascular
subject: Liver

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Untreated hepatocellular carcinoma (HCC) has a poor prognosis. While a small subgroup of patients can be treated with liver transplant or surgical resection, a larger number will be unresectable either at detection or will progress to unresctable...
Searching for magnetic fields in pulsating A-type stars: the discovery of a strong field in the probable delta Sct star HD340577 and a null result for the gamma Dor star HR8799
Creators: name: Hubrig, S.
name: Jarvinen, S. P.
name: Alvarado-Gomez, J. D.
name: Ilyin, I.
name: Schöller, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Numerous delta Sct and gamma Dor pulsators are identified in the region of the Hertzsprung-Russell diagram that is occupied by chemically peculiar magnetic Ap stars. The connection between delta Sct and gamma Dor pulsations and the magnetic field in Ap stars is however not clear: theory suggests for magnetic Ap stars some critical field strengths for pulsation mode suppression by computing the magnetic damping effect for selected p and g modes. To test these theoretical considerations, we obtained PEPSI spectropolarimetric snapshots of the typical Ap star HD340577, for which delta Sct-like pulsations were recently detected in TESS data, and the gamma Dor pulsator HR8799, which is a remarkable system with multiple planets and two debris disks. Our measurements reveal the presence of a magnetic field with a strength of several hundred Gauss in HD340577. The measured mean longitudinal field would be the strongest field measured so far in a delta Sct star if the pulsational character of HD340577 is confirmed spectroscopically. No magnetic field is detected in HR8799.
description: 5 pages, 4 figures, accepted for publication as a letter to MNRAS
title: Virtually-tracked interventional procedures under US guidance: preliminary evaluation
Creators: name: Fabbro, Emanuele
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Biopsy
subject: Ultrasound
subject: Thyroid / Parathyroids
subject: Interventional non-vascular
subject: Tissue characterisation
subject: Liver

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: A large number of interventional procedures can be made with a percutaneous approach. The relatively recent advances in ultrasound (US) technologies and its large availability made US guidance competitive, if not superior in some cases, with other...
Averaged universe confronted with cosmological observations: A fully covariant approach
Creators: name: Wijenayake, Tharake
name: Lin, Weikang
name: Ishak, Mustapha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: One of the outstanding problems in general relativistic cosmology is that of the averaging. That is, how the lumpy universe that we observe at small scales averages out to a smooth Friedmann-Lemaitre-Robertson-Walker (FLRW) model. The root of the problem is that averaging does not commute with the Einstein equations that govern the dynamics of the model. This leads to the well-know question of backreaction in cosmology. In this work, we approach the problem using the covariant framework of Macroscopic Gravity (MG). We use its cosmological solution with a flat FLRW macroscopic background where the result of averaging cosmic inhomogeneities has been encapsulated into a backreaction density parameter denoted $Ω_\mathcal{A}$. We constrain this averaged universe using available cosmological data sets of expansion and growth including, for the first time, a full CMB analysis from Planck temperature anisotropy and polarization data, the supernovae data from Union 2.1, the galaxy power spectrum from WiggleZ, the weak lensing tomography shear-shear cross correlations from the CFHTLenS survey and the baryonic acoustic oscillation data from 6Df, SDSS DR7 and BOSS DR9. We find that $-0.0155 \le Ω_\mathcal{A} \le 0$ (at the 68\% CL) thus providing a tight upper-bound on the backreaction term. We also find that the term is strongly correlated with cosmological parameters such $Ω_Λ$, $σ_8$ and $H_0$. While small, a backreaction density parameter of a few percent should be kept in consideration along with other systematics for precision cosmology.
description: 6 pages, 1 figure; matches version published in PRD
Short-time counting statistics of charge transfer in Coulomb-blockade systems
Creators: name: Stegmann, Philipp
name: König, Jürgen
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study full counting statistics of electron tunneling in Coulomb-blockade systems in the limit of short measuring-time intervals. This limit is particularly suited to identify correlations among tunneling events, but only when analyzing the charge-transfer statistics in terms of factorial cumulants $C_{{\rm F}, m}(t)$ rather than ordinary ones commonly used in literature. In the absence of correlations, the short-time behavior of the factorial cumulants is given by $C_{{\rm F}, m}(t) \propto (-1)^{m-1}t^m$. A different sign and/or a different power law of the time dependence indicates correlations. We illustrate this for sequential and Andreev tunneling in a metallic single-electron box.
description: 8 pages, 3 figures
title: Review the applicability of advanced techniques of breast MRI in the evaluation of suspicious lesions evidenced by conventional imaging methods.
Creators: name: Santos, Alair Augusto
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Technical aspects
subject: Observer performance
subject: Imaging sequences
subject: MR-Diffusion/Perfusion
subject: MR
subject: Oncology
subject: Breast

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To review the current and advanced techniques for breast MRI, the main sequences and post-contrast kinetic study, especially in lesions with mammography or ultrasound failed to characterize the malignancy. Describe the advantages of the methods...
Regularity of quasigeodesics characterises hyperbolicity
Creators: name: Hughes, Sam
name: Nairne, Patrick S.
name: Spriano, Davide
Publisher: name: arXiv
Year: 2022
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F67, 68Q45

description: We characterise hyperbolic groups in terms of quasigeodesics in the Cayley graph forming regular languages. We also obtain a quantitative characterisation of hyperbolicity of geodesic metric spaces by the non-existence of certain local (3,0)-quasigeodesic loops. As an application we make progress towards a question of Shapiro regarding groups admitting a uniquely geodesic Cayley graph.
description: v3: Updated with referee's comments. To appear in Proceedings of the Royal Society of Edinburgh Section A: Mathematics. v2: 14 pages, comments welcome!
Vermessen und Teilen - Praktiken und Diskurse des Teilens digitaler Selbstvermessungsdaten
Creators: name: Leckert, Max
name: Panzitta, Susanne
name: Atanisev, Kaan
name: Dawgiert, Lukas
name: Dieterich, Manuel
name: Lauterwasser, Thomas
name: Leger, Matthias
name: Orlowski, Alexander
name: Steidle, Sebastian
name: Tiede, Maria
Publisher: name: Universität Tübingen
Year: 2017
Subjects: subject: Soziologie , Qualitative Sozialforschung , Empirische Sozialforschung , Techniksoziologie , Datenschutz , Digital Humanities
subject: 300
subject: App
subject: Selbstvermessungsapp
subject: Quantified Self
subject: Fitnessapp
subject: Praktiken
subject: Praxistheorie
subject: Daten teilen

description: Dieser Lehrforschungsbericht untersucht die Praktiken und Diskurse beim Umgang mit persönlichen Körperdaten, die mittels digitaler Selbstvermessung erfasst werden. Werden Körpderdaten wie Puls, Gewicht, Laufstrecke, Essverhalten etc geteilt und wenn ja, wie? Die Forschungsgruppe führte dazu Interviews mit Nutzern solcher Selbstvermessungsgeräte und machte Diskursanalysen zu Fitness, Gesundheit und Datennutzung. Die Forschungsdaten wurden sowohl praxistheoretisch interpretiert als auch mit den Techniken der Situationsanalyse strukturiert. Dieses Vorgehen bettete sich in den Forschungsstil der Grounded Theory ein.
title: Development of a new slice thickness measurement phantom for X-ray CT
Creators: name: Terauchi, Rina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Radiation physics
subject: CT
subject: Physics
subject: Artifacts

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Propose Slice thickness measurement is the linchpin of performance evaluation in CT. Conventionally; a method was used to scan the slanted object utilizing the partial volume effect when measuring the slice thickness in CT. However, a method...
Universal bounds on current fluctuations
Creators: name: Pietzonka, Patrick
name: Barato, Andre C.
name: Seifert, Udo
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: For current fluctuations in non-equilibrium steady states of Markovian processes, we derive four different universal bounds valid beyond the Gaussian regime. Different variants of these bounds apply to either the entropy change or any individual current, e.g., the rate of substrate consumption in a chemical reaction or the electron current in an electronic device. The bounds vary with respect to their degree of universality and tightness. A universal parabolic bound on the generating function of an arbitrary current depends solely on the average entropy production. A second, stronger bound requires knowledge both of the thermodynamic forces that drive the system and of the topology of the network of states. These two bounds are conjectures based on extensive numerics. An exponential bound that depends only on the average entropy production and the average number of transitions per time is rigorously proved. This bound has no obvious relation to the parabolic bound but it is typically tighter further away from equilibrium. An asymptotic bound that depends on the specific transition rates and becomes tight for large fluctuations is also derived. This bound allows for the prediction of the asymptotic growth of the generating function. Even though our results are restricted to networks with a finite number of states, we show that the parabolic bound is also valid for three paradigmatic examples of driven diffusive systems for which the generating function can be calculated using the additivity principle. Our bounds provide a new general class of constraints for nonequilibrium systems.
description: 19 pages, 13 figures
title: Dual-energy x-ray absorptiometry: incidental findings
Creators: name: Diano, Danila
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Musculoskeletal soft tissue
subject: Neuroradiology spine
subject: Vascular
subject: Absorptiometry / Bone densitometry
subject: Diagnostic procedure
subject: Technical aspects
subject: Medico-legal issues
subject: Osteoporosis
subject: Calcifications / Calculi
subject: Artifacts
subject: Musculoskeletal spine

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Nowadays a lot of emphasis is given to findings incidentally discovered during imaging or other diagnostic examinations. An "incidental finding" is defined as an observation noted in the dictated radiology report that is not directly related to the...
Estimating Entropy Production Rates with First-Passage Processes
Creators: name: Neri, Izaak
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the problem of estimating the mean entropy production rate in a nonequilibrium process from the measurements of first-passage quantities associated with a single current. For first-passage processes with large thresholds, Refs. [1, 2] identified a ratio of first-passage observables - involving the mean first-passage time, the splitting probability, and the first-passage thresholds - that lower bounds the entropy production rate and is an unbiased estimator of the entropy production rate when applied to a current that is proportional to the stochastic entropy production. Here, we show that also at finite thresholds, a finite number of realisations of the nonequilibrium process, and for currents that are not proportional to the stochastic entropy production, first-passage ratios can accurately estimate the rate of dissipation. In particular, first-passage ratios capture a finite fraction of the total entropy production rate in regimes far from thermal equilibrium where thermodynamic uncertainty ratios capture a negligible fraction of the total entropy production rate. Moreover, we show that first-passage ratios incorporate nonMarkovian statistics in the estimated value of the dissipation rate, which are difficult to include in estimates based on Kullback-Leibler divergences. Taken together, we show that entropy production estimation with first-passage ratios is complementary to estimation methods based on thermodynamic uncertainty ratios and Kullback-Leibler divergences.
description: 32 pages, 7 figures, a few typos have been corrected in the new version
Uncovering dispersion properties in semiconductor waveguides to study photon-pair generation
Creators: name: Laiho, K.
name: Pressl, B.
name: Schlager, A.
name: Suchomel, H.
name: Kamp, M.
name: Höfling, S.
name: Schneider, C.
name: Weihs, G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We investigate the dispersion properties of ridge Bragg-reflection waveguides to deduce their phasematching characteristics. These are crucial for exploiting them as sources of parametric down-conversion (PDC). In order to estimate the phasematching bandwidth we first determine the group refractive indices of the interacting modes via Fabry-Perot experiments in two distant wavelength regions. Second, by measuring the spectra of the emitted PDC photons we gain access to their group index dispersion. Our results offer a simple approach for determining the PDC process parameters in the spectral domain and provide an important feedback for designing such sources, especially in the broadband case.
description: 8 pages, 5 figures
Fidicinoides picea
Creators: name: Santos, Rodrigo Souza
name: Martinelli, Nilza Maria
Publisher: name: Zenodo
Year: 2008
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadidae
Fidicinoides
Fidicinoides picea

description: Fidicinoides picea (Walker, 1850)
 Principais sinonímias: Fidicina picea Walker, 1850; Fidicina pertinax Stål, 1864; Fidicina determinata Distant, 1881, Metcalf, 1963; Fidicina picea Wolda & Ramos, 1992.
Cabeça (Figura 1A): ocelos laterais e mediano muito próximos entre si, situados em uma longa mancha escura, de contorno irregular, estendendo-se até a base das antenas, mas não atingindo o vértice, distância entre os ocelos laterais cerca de duas vezes maior que a distância que os separam dos olhos correspondentes, manchas suboculares não-unidas, rostro longo, com seu ápice estendendo-se entre o segundo e o terceiro par de pernas.
Tórax (Figura 1A): pronoto duas vezes mais longo que a cabeça e o pardacento, lobos supra-humerais pouco desenvolvidos, mesonoto pardacento e verde, portando quatro manchas pretas e simétricas (duas externas longas e estreitas, duas internas igualmente estreitas e em formato de vírgula, uma mancha estreita e duas pequenas manchas circulares, pretas, acima da elevação cruciforme) (Figura 1A).
Abdome (Figura 1B): pardacento, um pouco mais longo que a distância compreendida do vértice aos ápices posteriores da elevação cruciforme, cimbacaliptos rudimentares, último urosternito do macho (Figura 1D), cerca de duas vezes mais largo que longo, com leve depressão na margem anterior, margem lateral oblíqua e levemente côncava na sua metade, margem posterior côncava e arredondada, com ápices afastados entre si.
Asa anterior (Figura 1C): hialinas; com célula basal opaca, de coloração parda-escura, costa pardacenta igualando com a metade da asa, nervuras marrons.
Material examinado: BRASIL. Pará: Cachimbo. Fundação Oswaldo Cruz. 20.VII.1955. (L. Travassos, S. Oliveira & Pearson), 1; ibidem, 21.IX.1955. (L. Travassos & S. Oliveira), 1; ibidem, 09.X.1956. (L. Travassos, S. Oliveira & Adão), 1.
 Comentário: Espécie de porte médio, próxima de F. pronoe, diferindo desta por apresentar as manchas externas do mesonoto não atingindo a elevação cruciforme. Anteriormente citada no gênero Fidicina, trata-se da primeira ocorrência desta espécie no Brasil, no Estado do Pará, sendo relatada também no México, na Venezuela, na Colômbia e no Equador (BOULARD & MARTINELLI,1996).
description: Published as part of Santos, Rodrigo Souza & Martinelli, Nilza Maria, 2008, Primeiro registro de Fidicinoides picea (Walker, 1850) e Fidicinoides poulaini Boulard & Martinelli, 1996 no Brasil, pp. 559-562 in Ciência Rural 39 (2) on page 560, DOI: 10.1590/s0103-84782008005000086, http://zenodo.org/record/8380124
title: One year outcome of ultrasound (US)-guided percutaneous treatment of Achilles tendinopathy: results of a randomized controlled trial
Creators: name: Fabbro, Emanuele
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: Ultrasound

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Achilles tendon (AT) is the largest tendon of the human body. It originates from the junction of gastrocnemius and soleus muscles' distal tendons in the middle of the calf to and runs distally, gradually assuming a crescent shape, and inserts on the...
Dimensional measures of generalized entropy
Creators: name: Zhdankin, Vladimir
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Entropy is useful in statistical problems as a measure of irreversibility, randomness, mixing, dispersion, and number of microstates. However, there remains ambiguity over the precise mathematical formulation of entropy, generalized beyond the additive definition pioneered by Boltzmann, Gibbs, and Shannon (applicable to thermodynamic equilibria). For generalized entropies to be applied rigorously to nonequilibrium statistical mechanics, we suggest that there is a need for a physically interpretable (dimensional) framework that can be connected to dynamical processes operating in phase space. In this work, we introduce dimensional measures of entropy that admit arbitrary invertible weight functions (subject to curvature and convergence requirements). These "dimensional entropies" have physical dimensions of phase-space volume and represent the extent of level sets of the distribution function. Dimensional entropies with power-law weight functions (related to Rényi and Tsallis entropies) are particularly robust, as they do not require any internal dimensional parameters due to their scale invariance. We also point out the existence of composite entropy measures that can be constructed from functionals of dimensional entropies. We calculate the response of the dimensional entropies to perturbations, showing that for a structured distribution, perturbations have the largest impact on entropies weighted at a similar phase-space scale. This elucidates the link between dynamics (perturbations) and statistics (entropies). Finally, we derive corresponding generalized maximum-entropy distributions. Dimensional entropies may be useful as a diagnostic (for irreversibility) and for theoretical modeling (if the underlying irreversible processes in phase space are understood) in chaotic and complex systems, such as collisionless systems of particles with long-range interactions.
description: 16 pages, accepted for publication in Journal of Physics A: Math. Theor 2023
Contact inhibition of locomotion and mechanical cross-talk between cell-cell and cell-substrate adhesion determines the pattern of junctional tension in epithelial cell aggregates
Creators: name: Coburn, Luke
name: Lopez, Hender
name: Noppe, Adrian
name: Caldwell, Benjamin J.
name: Moussa, Elliott
name: Yap, Chloe
name: Priya, Rashmi
name: Lobaskin, Vladimir
name: Roberts, Anthony P.
name: Yap, Alpha S.
name: Neufeld, Zoltan
name: Gomez, Guillermo A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: Tissues and Organs (q-bio.TO)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We generated a computational approach to analyze the biomechanics of epithelial cell aggregates, either island or stripes or entire monolayers, that combines both vertex and contact-inhibition-of-locomotion models to include both cell-cell and cell-substrate adhesion. Examination of the distribution of cell protrusions (adhesion to the substrate) in the model predicted high order profiles of cell organization that agree with those previously seen experimentally. Cells acquired an asymmetric distribution of basal protrusions, traction forces and apical aspect ratios that decreased when moving from the edge to the island center. Our in silico analysis also showed that tension on cell-cell junctions and apical stress is not homogeneous across the island. Instead, these parameters are higher at the island center and scales up with island size, which we confirmed experimentally using laser ablation assays and immunofluorescence. Without formally being a 3-dimensional model, our approach has the minimal elements necessary to reproduce the distribution of cellular forces and mechanical crosstalk as well as distribution of principal stress in cells within epithelial cell aggregates. By making experimental testable predictions, our approach would benefit the mechanical analysis of epithelial tissues, especially when local changes in cell-cell and/or cell-substrate adhesion drive collective cell behavior.
description: 39 pages, 8 Figures. Supplementary Information is included
Building up the Population III initial mass function from cosmological initial conditions
Creators: name: Stacy, Athena
name: Bromm, Volker
name: Lee, Aaron T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We simulate the growth of a Population III stellar system, starting from cosmological initial conditions at z=100. We follow the formation of a minihalo and the subsequent collapse of its central gas to high densities, resolving scales as small as ~ 1 AU. Using sink particles to represent the growing protostars, we model the growth of the photodissociating and ionizing region around the first sink, continuing the simulation for ~ 5000 yr after initial protostar formation. Along with the first-forming sink, several tens of secondary sinks form before an ionization front develops around the most massive star. The resulting cluster has high rates of sink formation, ejections from the stellar disc, and sink mergers during the first ~ 2000 yr, before the onset of radiative feedback. By this time a warm ~ 5000 K phase of neutral gas has expanded to roughly the disc radius of 2000 AU, slowing mass flow onto the disc and sinks. By 5000 yr the most massive star grows to 20 M_sol, while the total stellar mass approaches 75 M_sol. Out of the ~ 40 sinks, approximately 30 are low-mass (M_* < 1 M_sol), and if the simulation had resolved smaller scales an even greater number of sinks might have formed. Thus, protostellar radiative feedback is insufficient to prevent rapid disc fragmentation and the formation of a high-member Pop III cluster before an ionization front emerges. Throughout the simulation, the majority of stellar mass is contained within the most massive stars, further implying that the Pop III initial mass function is top-heavy.
description: 25 pages, 15 figures, accepted to MNRAS
Albrecht, R./Becker, W./Hirschmüller, M., Schmeckt und sehet
Creators: name: Otto, M.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821137663
description: Jahrbuch für evangelikale Theologie, V. 9 (1995): Jahrbuch für evangelikale Theologie, Band 9
Sons, R., Seelsorge zwischen Bibel und Psychotherapie
Creators: name: Stadelmann, Helge
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821138465
description: Jahrbuch für evangelikale Theologie, V. 9 (1995): Jahrbuch für evangelikale Theologie, Band 9
title: Tumors and pseudotumors of the spine: a review of the main aspects in computed tomography and magnetic resonance imaging.
Creators: name: Santos, Alair Augusto
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Metastases
subject: Perception image
subject: Outcomes analysis
subject: Observer performance
subject: MR-Diffusion/Perfusion
subject: MR
subject: CT
subject: Neuroradiology spine
subject: Musculoskeletal spine

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The purposes of the exhibit is: Describe the primary tumors and pseudotumors of the spine and the most common radiological findings. Review the main differential diagnoses according to the location of the...
title: MR Imaging Findings of the Tumor Mimicking Primary Angiitis of the Central Nervous System
Creators: name: zheng, kuihong
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: MR-Spectroscopy
subject: MR-Diffusion/Perfusion
subject: Neuroradiology brain
subject: Arterial access
subject: Inflammation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The aim of this study was to describe the MR imaging features of the tumor-mimicking primary angiitis of the central nervous system(PACNS) and to discuss MR diagnosis value of the tumor-mimicking...
title: Early Diagnosis of Primary Central Nervous System Lymphoma Using Modern Magnetic Resonance Techniques
Creators: name: Chen, Chuan Han
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: MR
subject: MR-Diffusion/Perfusion
subject: MR-Spectroscopy
subject: Diagnostic procedure
subject: Lymphoma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1. The incidence of the CNS lymphoma raised recently in both immunocompromised and immunocompetent people. Early diagnosis is important to avoid unnecessary operation and promt giving radiotherapy. 2. Sometimes the clinical and radiological...
Optimal initial condition of passive tracers for their maximal mixing in finite time
Creators: name: Farazmand, Mohammad
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Dynamical Systems (math.DS)
subject: Optimization and Control (math.OC)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The efficiency of a fluid mixing device is often limited by fundamental laws and/or design constraints, such that a perfectly homogeneous mixture cannot be obtained in finite time. Here, we address the natural corollary question: Given the best available mixer, what is the optimal initial tracer pattern that leads to the most homogeneous mixture after a prescribed finite time? For ideal passive tracers, we show that this optimal initial condition coincides with the right singular vector (corresponding to the smallest singular value) of a suitably truncated Perron-Frobenius (PF) operator. The truncation of the PF operator is made under the assumption that there is a small length-scale threshold $\ell_ν$ under which the tracer blobs are considered, for all practical purposes, completely mixed. We demonstrate our results on two examples: a prototypical model known as the sine flow and a direct numerical simulation of two-dimensional turbulence. Evaluating the optimal initial condition through this framework only requires the position of a dense grid of fluid particles at the final instance and their preimages at the initial instance of the prescribed time interval. As such, our framework can be readily applied to flows where such data is available through numerical simulations or experimental measurements.
description: Examples with Harr wavelets are added
Mean Robust Optimization
Creators: name: Wang, Irina
name: Becker, Cole
name: Van Parys, Bart
name: Stellato, Bartolomeo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: Robust optimization is a tractable and expressive technique for decision-making under uncertainty, but it can lead to overly conservative decisions when pessimistic assumptions are made on the uncertain parameters. Wasserstein distributionally robust optimization can reduce conservatism by being data-driven, but it often leads to very large problems with prohibitive solution times. We introduce mean robust optimization, a general framework that combines the best of both worlds by providing a trade-off between computational effort and conservatism. We propose uncertainty sets constructed based on clustered data rather than on observed data points directly thereby significantly reducing problem size. By varying the number of clusters, our method bridges between robust and Wasserstein distributionally robust optimization. We show finite-sample performance guarantees and explicitly control the potential additional pessimism introduced by any clustering procedure. In addition, we prove conditions for which, when the uncertainty enters linearly in the constraints, clustering does not affect the optimal solution. We illustrate the efficiency and performance preservation of our method on several numerical examples, obtaining multiple orders of magnitude speedups in solution time with little-to-no effect on the solution quality.
Exact diagonalization for spin-1/2 spin ice pyrochlores
Creators: name: Wei, C.
name: Curnoe, S. H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We find exact solutions to the Hamiltonian of a 16-site spin-1/2 pyrochlore crystal with nearest neighbour exchange interactions. The methods of group theory (symmetry) are used to completely block-diagonalize the Hamiltonian, yielding precise details about symmetry of the eigenstates, in particular those components which are {\em spin ice} states, in order to evaluate the spin ice density at finite temperature. At low enough temperatures, a `perturbed' spin ice phase is clearly outlined within the four parameter space of the general model of exchange interactions. The quantum spin ice phase is expected to exist outside these boundaries.
title: Tuberculosis afeccting the central nervous sistem and spine: CT and MR imaging implications for diagnosis and treatment
Creators: name: Trigo, Silvana
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Diagnostic procedure
subject: Contrast agent-intravenous
subject: MR
subject: CT-High Resolution
subject: Neuroradiology spine
subject: Neuroradiology brain
subject: Infection
subject: Inflammation

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: - To presenttomografic (CT)and magnetic resonanceMR)aspects of tuberculosis inspine, central nervous sistem andin meninges,highlighting the importance of these methods to the diagnosis of the disease. - To emphasize the main CT and MR...
The Least Prime Number in a Beatty Sequence
Creators: name: Steuding, Jörn
name: Technau, Marc
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11N13, 11B83, 11K60

description: We prove an upper bound for the least prime in an irrational Beatty sequence. This result may be compared with Linnik's theorem on the least prime in an arithmetic progression.
description: 17 pages
INVESTIGATING AN INNOVATIVE APPROACH TO GENERATE ASYMMETRIC TOOTH PROFILES AND ANALYZING BENDING STRESS
Creators: name: SRINIVASA P
name: SHASHISHEKAR C
name: G. MALLESH
Publisher: name: Zenodo
Year: 2024
Subjects: ANSYS APDL, Bending Stress, FEA, Asymmetric Spur Gears, Profile Generation.

description: Abstract

Gears are the mechanical components and are predominate as the most effective means of power transmission in mining equipment which encompasses a wide range of machinery used in the extraction of minerals and resources from the earth. Currently, gears in mining equipment are prone to a different types of failures when they are subjected to impact, shock and fatigue loads. It is noticed from the literature that 34.4% of the failures are due to poor lubrication, 19.6% due to impurity, 17.7% due to fixing errors, 6.9% are due to excess load and 2.8% failures are due to handling errors. Further, more than 1,500 gear failures were examined throughout the investigation, and it was observed that tooth bending fatigue is the common mode, leading to tooth fracture at the root owing to bending stress. Bending stress developed at the tooth root can be minimized by modifying addendum of mating gears or the involute geometry. An additional alteration that is rarely used is to make the gear asymmetric or nonstandard. Therefore, in this research work attempts are made to generate non-standard spur gear tooth profile by varying pressure angle and profile shift using APDL program to estimate bending stress using FE software ANSYS. Bending stress calculated using the Lewis equation and FE analysis were compared to validate the FE procedure. It is noticed that bending stress was reduced to 38 % by increasing the pressure angle from 200 to 350 without altering other gear parameters. Therefore, the utilization of non-standard asymmetric spur gears offers a potential means to minimize the risk of tooth breakage.
title: Endocardial fusion with 3D-CT and MPS
Creators: name: Morita, Terumasa
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiac
subject: CT-High Resolution
subject: SPECT-CT
subject: CAD
subject: Computer Applications-3D
subject: Ischaemia / Infarction
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Cardiac Imaging is developing in a new era with the aid of multi-detector computed tomography (MDCT). The three dimensional CT(3D-CT) can represent structural changes of the left ventricle (LV) in ischemic cardiomyopathy (ICM) such as LV dilatation...
title: Bone Lesions: correlating classic radiographic signs with cross-sectional and volumetric CT and MRI imaging
Creators: name: Odedra, Bhim
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal bone
subject: Musculoskeletal joint
subject: Conventional radiography
subject: CT
subject: MR
subject: Education
subject: Cysts
subject: Dysplasias
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: This exhibit encourages the viewer to use first principles in guiding assessment of bone lesions in a logical manner (Figure 2). You will be able to recognise a variety of classical bone lesions with their cross-sectional and nuclear medicine...
title: Effect of patient habitus on organ radiation dose and image quality for chest computed tomography: a phantom study
Creators: name: Odedra, Devang
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Lung
subject: Cardiac
subject: Breast
subject: CT
subject: Dosimetry
subject: Physics
subject: Equipment
subject: Epidemiology

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Dramatic increases in the use of Computed Tomography (CT) in the evaluation of cardiac and thoracic disease, has led to a corresponding increase in medical and public concern regarding the potential for adverse health outcomes due to the radiation...
Dimensional decoupling at continuous quantum critical Mott transitions
Creators: name: Zou, Liujun
name: Senthil, T.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: For continuous Mott metal-insulator transitions in layered two dimensional systems, we demonstrate the phenomenon of dimensional decoupling: the system behaves as a three-dimensional metal in the Fermi liquid side but as a stack of decoupled two-dimensional layers in the Mott insulator. We show that the dimensional decoupling happens at the Mott quantum critical point itself. We derive the temperature dependence of the interlayer electric conductivity in various crossover regimes near such a continuous Mott transition, and discuss experimental implications.
description: 12 pages + appendices + references
title: Assessment of a variety of vascular malformations using time-resolved imaging of contrast kinetics magnetic resonance angiography
Creators: name: Vedelago, John
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: MR
subject: Vascular
subject: Contrast agent-intravenous
subject: Arteriovenous malformations

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The aims of this presentation are: -To provide a basic overview of the physics of this 4D magnetic resonance angiography technique with respect to it's manipulation of k-space data -To illustrate, through case presentationofa variety of anatomic...
Dieterich, M. (Hg.), Praxisbuch Seelsorge mit Kindern
Creators: name: Harbich, S.D.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 182113785X
description: Jahrbuch für evangelikale Theologie, V. 9 (1995): Jahrbuch für evangelikale Theologie, Band 9
Constraints on Sterile Neutrino Oscillations using DUNE Near Detector
Creators: name: Choubey, Sandhya
name: Pramanik, Dipyaman
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: DUNE (Deep Underground Neutrino Experiment) is a proposed long-baseline neutrino experiment in the US with a baseline of 1300 km from Fermi National Accelerator Laboratory (Fermilab) to Sanford Underground Research Facility, which will house a 40 kt Liquid Argon Time Projection Chamber (LArTPC) as the far detector. The experiment will also have a fine grained near detector for accurately measuring the initial fluxes. We show that the energy range of the fluxes and baseline of the DUNE near detector is conducive for observing $ν_μ\to ν_e$ oscillations of $Δm^2 \sim$ eV$^2$ scale sterile neutrinos, and hence can be effectively used for testing to very high accuracy the reported oscillation signal seen by the LSND and MiniBooNE experiments. We study the sensitivity of the DUNE near detector to sterile neutrino oscillations by varying the baseline, detector fiducial mass and systematic uncertainties. We find that the detector mass and baseline of the currently proposed near detector at DUNE will be able to test the entire LSND parameter region with good precision. The dependence of sensitivity on baseline and detector mass is seen to give interesting results, while dependence on systematic uncertainties is seen to be small.
description: 16 pages, 5 figures
Virial Theorem in Nonlocal Newtonian Gravity
Creators: name: Mashhoon, B.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Nonlocal gravity is the recent classical nonlocal generalization of Einstein's theory of gravitation in which the past history of the gravitational field is taken into account. In this theory, nonlocality appears to simulate dark matter. The virial theorem for the Newtonian regime of nonlocal gravity theory is derived and its consequences for "isolated" astronomical systems in virial equilibrium at the present epoch are investigated. In particular, for a sufficiently isolated nearby galaxy in virial equilibrium, the galaxy's baryonic diameter---namely, the diameter of the smallest sphere that completely surrounds the baryonic system at the present time---is predicted to be larger than the effective dark matter fraction times a universal length that is the basic nonlocality length scale of about 3 kpc.
description: 15 pages; v2: expanded version
title: Pelvic trauma: review of arterial lesions and endovascular treatment
Creators: name: Santos, Alair Augusto
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Emergency
subject: Trauma
subject: Pelvis
subject: Catheter arteriography
subject: CT-Angiography
subject: Percutaneous
subject: Arterial access
subject: Diagnostic procedure
subject: Outcomes analysis
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The purposes of the exhibit is: To review the major types of injuries and compromised arteries in pelvic trauma. Describe the angiographic findings in patients with pelvic trauma underwent arterial embolization to control...
String-Theory-Based Predictions for Nonhydrodynamic Collective Modes in Strongly Interacting Fermi Gases
Creators: name: Bantilan, H.
name: Brewer, J. T.
name: Ishii, T.
name: Lewis, W. E.
name: Romatschke, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Very different strongly interacting quantum systems such as Fermi gases, quark-gluon plasmas formed in high energy ion collisions and black holes studied theoretically in string theory are known to exhibit quantitatively similar damping of hydrodynamic modes. It is not known if such similarities extend beyond the hydrodynamic limit. Do non-hydrodynamic collective modes in Fermi gases with strong interactions also match those from string theory calculations? In order to answer this question, we use calculations based on string theory to make predictions for novel types of modes outside the hydrodynamic regime in trapped Fermi gases. These predictions are amenable to direct testing with current state-of-the-art cold atom experiments.
description: 8 pages, 2 figures, 2 tables; v2: matches published version
Dissipation enabled efficient excitation transfer from a single photon to a single quantum emitter
Creators: name: Trautmann, Nils
name: Alber, Gernot
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme for triggering a dissipation dominated highly efficient excitation transfer from a single photon wave packet to a single quantum emitter. This single photon induced optical pumping turns dominant dissipative processes, such as spontaneous photon emission by the emitter or cavity decay, into valuable tools for quantum information processing and quantum communication. It works for an arbitrarily shaped single photon wave packet with sufficiently small bandwidth provided a matching condition is satisfied which balances the dissipative rates involved. Our scheme does not require additional laser pulses or quantum feedback and is not restricted to highly mode selective cavity quantum electrodynamical architectures. In particular, it can be used to enhance significantly the coupling of a single photon to a single quantum emitter implanted in a one dimensional waveguide or even in a free space scenario. We demonstrate the usefulness of our scheme for building a deterministic quantum memory and a deterministic frequency converter between photonic qubits of different wavelengths.
description: 10 pages, 5 figures
Schirrmacher, Th./Antholzer, R., Psychotherapie - der fatale Irrtum
Creators: name: Stoll, Claus-Dieter
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821138376
description: Jahrbuch für evangelikale Theologie, V. 9 (1995): Jahrbuch für evangelikale Theologie, Band 9
Bräumer, H./Stöckle, Th., Mit dem Herzen hören
Creators: name: Sachs, M.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821137779
description: Jahrbuch für evangelikale Theologie, V. 9 (1995): Jahrbuch für evangelikale Theologie, Band 9
title: An Epidemiological Imaging Study of Spinal Segment Variants in a Nonsymptomatic Population
Creators: name: Thawait, Shrey
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Anatomy
subject: Musculoskeletal spine
subject: CT
subject: Normal variants
subject: Congenital
subject: Epidemiology

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The purpose of this original research is to determine the prevalence of spinal segmental variants in a non-symptomatic population. Introduction Congenital spinal abnormalities are highly prevalent and have substantial implications for patient...
title: MRI of the thorax - a pictorial review
Creators: name: Teo, Lynette
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Lung
subject: Mediastinum
subject: Cardiovascular system
subject: MR
subject: Imaging sequences
subject: Neoplasia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To review the utility of magnetic resonance imaging (MRI) in thoracic imaging. To present examples of mediastinal, pleural, pericardial, cardiac, lung parenchymal and chest wall diseases using...
title: Shear wave ultrasound elastography: from physics to future
Creators: name: Simic, Marija
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Ultrasound physics
subject: Education and training
subject: Elastography
subject: Ultrasound
subject: Physics
subject: Diagnostic procedure
subject: Education
subject: Tissue characterisation
subject: Pathology
subject: Neoplasia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: Elastography uses ultrasound to assess elasticity. Shear wave elastography (SWE) is a new technique that estimates tissue stiffness inreal time. It provides quantitative data, tissue stiffness heterogeneities are displayed on a color coded map. It...