cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Super-radiant phase transition in superconducting circuit in thermal equilibrium
Creators: name: Bamba, Motoaki
name: Inomata, Kunihiro
name: Nakamura, Yasunobu
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a superconducting circuit that shows a super-radiant phase transition (SRPT) in the thermal equilibrium. The existence of the SRPT is confirmed analytically in the limit of an infinite number of artificial atoms. We also perform numerical diagonalization of the Hamiltonian with a finite number of atoms and observe an asymptotic behavior approaching the infinite limit as the number of atoms increases. The SRPT can also be interpreted intuitively in a classical analysis.
description: 8 pages, 3 figures
title: TERSON SYNDROM : about three cases reports
Creators: name: Jamaleddine, Zineb
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Eyes
subject: Head and neck
subject: CT
subject: MR-Angiography
subject: Ultrasound
subject: Embolisation
subject: Surgery
subject: Haemorrhage

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Terson’s syndrom is the association of vitreous or retinal haemorrhage with subarachnoid haemorrhage (SAH), mentioned for the first time in 1900. In adults, some form of intraocular hemorrhage has been reported to accompany the cerebrovascular...
Leading order response of statistical averages of a dynamical system to small stochastic perturbations
Creators: name: Abramov, Rafail V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: 37M, 37N, 60G

description: The classical fluctuation-dissipation theorem predicts the average response of a dynamical system to an external deterministic perturbation via time-lagged statistical correlation functions of the corresponding unperturbed system. In this work we develop a fluctuation-response theory and test a computational framework for the leading order response of statistical averages of a deterministic or stochastic dynamical system to an external stochastic perturbation. In the case of a stochastic unperturbed dynamical system, we compute the leading order fluctuation-response formulas for two different cases: when the existing stochastic term is perturbed, and when a new, statistically independent, stochastic perturbation is introduced. We numerically investigate the effectiveness of the new response formulas for an appropriately rescaled Lorenz 96 system, in both the deterministic and stochastic unperturbed dynamical regimes.
description: 28 pages, 7 figures, 7 tables; added a new numerical simulation with a stochastic system perturbed by a new stochastic noise
title: The removal of the penumbra effect by a CAD based on the de-convolution technique. Several field examples were used to demonstrate the merits of this technique to enhance images for clearer diagnosis and accurate measurements.
Creators: name: Chui, Kui-Ming
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Aneurysms
subject: Imaging sequences
subject: Computer Applications-Detection, diagnosis
subject: CAD
subject: MR
subject: CT-Angiography
subject: CAD
subject: MR physics
subject: Computer applications
subject: Breast

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The Penumbra-Effect describes blurring at the margins of an image-profile due to the finite size of the energy-source. A CAD based on the De-Convolution Technique can be used to pinpoint true-edge positions to sub-pixel accuracy and remove the...
title: Software-based MR-guided radiofrequency ablation of malignant liver tumors: long-term results
Creators: name: Schmidt, Diethard
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Interventional non-vascular
subject: MR
subject: Ablation procedures
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Image-guided radiofrequency (RF) ablation has gained increased attention as a minimal invasive therapy option in the treatment of hepatic malignancies (1-4). In an axial 2D view, image guidance should ensure a precise ablation therapy leading to a...
title: Efficacy of ADC map in the evaluation of patients with cervical cancer after non-surgical treatment with pathological findings correlation
Creators: name: Rodriguez Laval, Víctor
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Oncology
subject: Genital / Reproductive system female
subject: MR-Diffusion/Perfusion
subject: Image manipulation / Reconstruction
subject: Treatment effects
subject: Radiation therapy / Oncology
subject: Chemotherapy
subject: Tissue characterisation
subject: Pathology
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To evaluate in treated patients with cervical cancer (CC), the efficacy of apparent diffusion coefficient (ADC) map in the differentiation of residual tumor from fibrotic changes after Radio/Chemotherapy Treatment...
The bolometric light curves and physical parameters of stripped-envelope supernovae
Creators: name: Prentice, S. J.
name: Mazzali, P. A.
name: Pian, E.
name: Gal-Yam, A.
name: Kulkarni, S. R.
name: Rubin, A.
name: Corsi, A.
name: Fremling, C.
name: Sollerman, J.
name: Yaron, O.
name: Arcavi, I.
name: Zheng, W.
name: Kasliwal, M. M.
name: Filippenko, A. V.
name: Cenko, S. B.
name: Cao, Y.
name: Nugent, P. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The optical and optical/near-infrared pseudo-bolometric light curves of 85 stripped-envelope supernovae (SNe) are constructed using a consistent method and a standard cosmology. The light curves are analysed to derive temporal characteristics and peak luminosity $L_{\mathrm{p}}$, enabling the construction of a luminosity function. Subsequently, the mass of $^{56}$Ni synthesised in the explosion, along with the ratio of ejecta mass to ejecta kinetic energy, are found. Analysis shows that host-galaxy extinction is an important factor in accurately determining luminosity values as it is significantly greater than Galactic extinction in most cases. It is found that broad-lined SNe~Ic (SNe~Ic-BL) and gamma-ray burst SNe are the most luminous subtypes with a combined median $L_{\mathrm{p}}$, in erg s$^{-1}$, of log($L_{\mathrm{p}})=43.00$ compared to $42.51$ for SNe Ic, $42.50$ for SNe~Ib, and $42.36$ for SNe~IIb. It is also found that SNe~Ic-BL synthesise approximately twice the amount of $^{56}$Ni compared with SNe~Ic, Ib, and IIb, with median $M_{\mathrm{Ni}} = 0.34$, 0.16, 0.14, and 0.11 M$_{\odot}$, respectively. SNe~Ic-BL, and to a lesser extent SNe~Ic, typically rise from $L_{\mathrm{p}}/2$ to $L_{\mathrm{p}}$ more quickly than SNe~Ib/IIb; consequently, their light curves are not as broad.
description: 34 pages. Accepted for publication in MNRAS. Updated to reflect the published version. +1 supernova
title: Cranio-cerebral abnormalities in acute leukemia: current and particular CT and MRI aspects
Creators: name: Lupescu, Ioana Gabriela
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: Haematologic
subject: Oncology
subject: CT
subject: MR
subject: Education
subject: Treatment effects
subject: Radiation therapy / Oncology
subject: Haematologic diseases
subject: Leukaemia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: - To review cranio-cerebral imaging features encountered in patients with acute leukemia (AL) in correlation with the clinical issues. - To delineate the importance of neuroimaging techniques for the diagnosis and patient...
Ultra-high-energy-cosmic-ray hot spots from tidal disruption events
Creators: name: Pfeffer, Daniel N.
name: Kovetz, Ely D.
name: Kamionkowski, Marc
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We consider the possibility that tidal disruption events (TDEs) caused by supermassive black holes (SMBHs) in nearby galaxies can account for the ultra-high-energy cosmic-ray (UHECR) hotspot reported recently by the Telescope Array (TA) and the warm spot by Pierre Auger Observatory (PAO). We describe the expected cosmic-ray signal from a TDE and derive the constraints set by the timescale for dispersion due to intergalactic magnetic fields and the accretion time of the SMBH. We find that TDEs in M82 can explain the hotspot detected by the TA regardless of whether the UHECRs are composed of protons or heavier nuclei. We then check for consistency of the hot and warm spots from M82 and Cen A with the full-sky isotropic signal from all SMBHs within the GZK radius. This analysis applies to any scenario in which the hot/warm spots are real and due to M82 and Cen A, regardless of whether TDEs are the source of UHECRs. We find that the isotropic flux implied by the luminosity density inferred from M82 and Cen A is bigger than that observed by roughly an order of magnitude, but we provide several possible explanations, including the possibility of a local overdensity and the possibility of intermediate-mass nuclei in UHECRs, to resolve the tension.
description: 6 pages; major revisions
title: The impact of maximum turning angle in different deterministic tractography algorithms applied in pediatric populations
Creators: name: de Macedo Rodrigues, Katyucia
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Paediatric
subject: Neuroradiology brain
subject: MR-Functional imaging
subject: MR
subject: Diagnostic procedure
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Diffusion-weighted imaging (DWI) has become an important tool in clinical Pediatric Neuroradiology, enabling the characterization of normal brain, brain development as well as a range of pathologic conditions. Information about the diffusivity of...
title: Review of Acetabular fracture classification using three-dimensional volume rendered computed tomography
Creators: name: cheekatla, suresh
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Trauma
subject: Athletic injuries
subject: Computer Applications-3D
subject: Image manipulation / Reconstruction
subject: CT
subject: Conventional radiography
subject: Pelvis
subject: Musculoskeletal bone
subject: Emergency

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: 1. Identify anatomical landmarks of the acetabulum on 3D volume rendered images. 2. Review fracture classification based on three-dimensional volume rendered (3D) medial and lateral views. 4. Understand the volume rendering technique, and it's pros...
Multi-Higgs production in gluon fusion at 100 TeV
Creators: name: Degrande, Celine
name: Khoze, Valentin V.
name: Mattelaer, Olivier
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We carry out a detailed study of multi-Higgs production processes in the gluon fusion channel in the high energy regime relevant to Future Circular hadron colliders and in the high-Higgs-multiplicity limit (> 20). Our results are based on the computation of the leading polygons - the triangles, boxes, pentagons and hexagons - to the scattering processes, further combined with the subsequent branchings to reach high final state multiplicities. The factorial growth of the number of diagrams leads to an exponential enhancement of such large multiplicity cross-sections and, ultimately, in breaking of perturbativity. We find that the characteristic energy and multiplicity scales where these perturbative rates become highly enhanced and grow with increasing energy are within the 100 TeV regime with of the order of 130 Higgses (or more) in the final state. We also show that already for a 50 TeV hadron collider the perturbative cross-sections for 140 bosons are at picobarn level.
description: 20 pages, 6 figures; v2: new Appendix reviewing the generating functions method to compute tree-level amplitudes on multi-particle thresholds; minor corrections; matches the published version in PRD
title: Dual-energy CT colonography: an illustrative review of advanced visualization and diagnosis techniques for colorectal lesions
Creators: name: Näppi, Janne
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Colonography CT
subject: CAD
subject: CT
subject: Computer applications
subject: Colon
subject: Abdomen

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To learn the image characteristics of dual-energy fecal-tagging CT colonography; To illustrate how dual-energy CT improves electronic cleansing (EC) and computer-aided detection (CAD) over conventional single-energy CTC; and To demonstrate the pros...
Charge-sensitive front-end electronics with operational amplifiers for CdZnTe detectors
Creators: name: Födisch, P.
name: Berthel, M.
name: Lange, B.
name: Kirschke, T.
name: Enghardt, W.
name: Kaever, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Cadmium zinc telluride (CdZnTe, CZT) radiation detectors are suitable for a variety of applications, due to their high spatial resolution and spectroscopic energy performance at room temperature. However, state-of-the-art detector systems require high-performance readout electronics. Though an application-specific integrated circuit (ASIC) is an adequate solution for the readout, requirements of high dynamic range and high throughput are not available in any commercial circuit. Consequently, the present study develops the analog front-end electronics with operational amplifiers for an 8x8 pixelated CZT detector. For this purpose, we modeled an electrical equivalent circuit of the CZT detector with the associated charge-sensitive amplifier (CSA). Based on a detailed network analysis, the circuit design is completed by numerical values for various features such as ballistic deficit, charge-to-voltage gain, rise time, and noise level. A verification of the performance is carried out by synthetic detector signals and a pixel detector. The experimental results with the pixel detector assembly and a 22Na radioactive source emphasize the depth dependence of the measured energy. After pulse processing with depth correction based on the fit of the weighting potential, the energy resolution is 2.2% (FWHM) for the 511 keV photopeak.
Laplacian versus Adjacency Matrix in Quantum Walk Search
Creators: name: Wong, Thomas G.
name: Tarrataca, Luís
name: Nahimov, Nikolay
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A quantum particle evolving by Schrödinger's equation contains, from the kinetic energy of the particle, a term in its Hamiltonian proportional to Laplace's operator. In discrete space, this is replaced by the discrete or graph Laplacian, which gives rise to a continuous-time quantum walk. Besides this natural definition, some quantum walk algorithms instead use the adjacency matrix to effect the walk. While this is equivalent to the Laplacian for regular graphs, it is different for non-regular graphs, and is thus an inequivalent quantum walk. We algorithmically explore this distinction by analyzing search on the complete bipartite graph with multiple marked vertices, using both the Laplacian and adjacency matrix. The two walks differ qualitatively and quantitatively in their required jumping rate, runtime, sampling of marked vertices, and in what constitutes a natural initial state. Thus the choice of the Laplacian or adjacency matrix to effect the walk has important algorithmic consequences.
description: 21 pages, 8 figures
title: Usefulness of CTA in planning of osteocutaneous free fibula flap
Creators: name: Tinto, Hugo
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Vascular
subject: CT-Angiography
subject: Normal variants
subject: Arteriosclerosis
subject: Transplantation

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To understand the importance of a preoperative CTA in fibular osteocutaneous free flaps before mandibular reconstruction. To be familiar with the variations of blood supply to the foot and its relevance to the surgical...
Characteristics of persistent spin current components in a quasi-periodic Fibonacci ring with spin-orbit interactions: Prediction of spin-orbit coupling and on-site energy
Creators: name: Patra, Moumita
name: Maiti, Santanu K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In the present work we investigate the behavior of all three components of persistent spin current in a quasi-periodic Fibonacci ring subjected to Rashba and Dresselhaus spin-orbit interactions. Analogous to persistent charge current in a conducting ring where electrons gain a Berry phase in presence of magnetic flux, spin Berry phase is associated during the motion of electrons in presence of a spin-orbit field which is responsible for the generation of spin current. The interplay between two spin-orbit fields along with quasi-periodic Fibonacci sequence on persistent spin current is described elaborately, and from our analysis, we can estimate the strength of any one of two spin-orbit couplings together with on-site energy, provided the other is known.
description: 8 pages, 12 figures (Accepted for Publication in Annals of Physics)
title: Diagnostic Imaging in Nontraumatic Cord Emergencies
Creators: name: Vargas Orozco, Ivan Mauricio
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Inflammation
subject: Infection
subject: Abscess
subject: Diagnostic procedure
subject: MR
subject: CT
subject: Neuroradiology spine
subject: Education and training
subject: Musculoskeletal spine

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: PURPOSE List the common nontraumatic causes of spinal cord lesions that may be seen in the emergency setting. Describe the clinical manifestations and review the imaging findings: magnetic resonance imaging (MRI). Provide an in-depth analysis...
Time-dependent spin and transport properties of a single-molecule magnet in a tunnel junction
Creators: name: Hammar, H.
name: Fransson, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In single-molecule magnets, the exchange between a localized spin moment and the electronic background provides a suitable laboratory for studies of dynamical aspects of both local spin and transport properties. Here we address the time evolution of a localized spin moment coupled to an electronic level in a molecular quantum dot embedded in a tunnel junction between metallic leads. The interactions between the localized spin moment and the electronic level generate an effective interaction between the spin moment at different instances in time. Therefore, we show that, despite being a single-spin system, there are effective contributions of isotropic Heisenberg, and anisotropic Ising and Dzyaloshinski-Moriya character acting on the spin moment. The interactions can be controlled by gate voltage, voltage bias, the spin polarization in the leads, in addition to external magnetic fields. Signatures of the spin dynamics are found in the transport properties of the tunneling system, and we demonstrate that measurements of the spin current may be used for read-out of the local spin moment orientation.
description: 14 pages, 15 figures; submitted
title: A Novel MRI Tracer-based Method for Measuring Diffusion Parameters in the Extracellular Space of the Rat Brain
Creators: name: Li, Kai
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Tissue characterisation
subject: Dissection
subject: Molecular imaging
subject: Experimental investigations
subject: Contrast agent-other
subject: MR
subject: Experimental
subject: Molecular imaging

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Awareness of molecular diffusion in the brain’s extracellular space (ECS) has increased because of its potential role as a mediator of volume transmission or extra-synaptic communication. However, there are only few techniques available for the...
title: Transcatheter Arterial Embolization of Gastrointestinal Tract Bleeding with N-Butyl-2-Cyanoacrylate in 71 Patients at a Single Institution
Creators: name: Koo, Hyun Jung
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Haemorrhage
subject: Embolisation
subject: Catheters
subject: Catheter arteriography
subject: Interventional vascular
subject: Gastrointestinal tract

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To evaluate the safety and effectiveness of transcatheter arterial embolization (TAE) with N-Butyl Cyanoacrylate (NBCA) for nonvariceal gastrointestinal (GI) bleeding, and to determine the factors associated with clinical outcomes. Transcatheter...
title: A Four-Chamber Dynamic Cardiac Phantom for MRI Studies
Creators: name: Tavakoli, Vahid
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiac
subject: MR
subject: Computer Applications-Detection, diagnosis
subject: Embolism / Thrombosis

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The clinicians assess the myocardial motion subjectively by scoring the motion . Registration algorithms are applied to the cardiac images to compute objective outputs. However in vivo validation of registration techniques are not a trivial task...
title: Diffusion of Gadolinium-based Contrast in Rat Brain Extracellular Space Measured by Magnetic Resonance Tracer Imaging
Creators: name: Han, Hongbin
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Tissue characterisation
subject: Technology assessment
subject: Experimental investigations
subject: MR
subject: Contrast agents

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The process of molecular transport in brain extracellular space (ECS) is primarily mediated by diffusion. Quantitative assessment of the diffusive properties is thus essential to explore the biophysical structure of ECS. This research is to extract...
Giant magnetoresistance, three-dimensional Fermi surface and origin of resistivity plateau in YSb semimetal
Creators: name: Pavlosiuk, Orest
name: Swatek, Przemysław
name: Wiśniewski, Piotr
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Very strong magnetoresistance and a resistivity plateau impeding low temperature divergence due to insulating bulk are hallmarks of topological insulators and are also present in topological semimetals where the plateau is induced by magnetic field, when time-reversal symmetry (protecting surface states in topological insulators) is broken. Similar features were observed in a simple rock-salt-structure LaSb, leading to a suggestion of the possible non-trivial topology of 2D states in this compound. We show that its sister compound YSb is also characterized by giant magnetoresistance exceeding one thousand percent and low-temperature plateau of resistivity. We thus performed in-depth analysis of YSb Fermi surface by band calculations, magnetoresistance, and Shubnikov--de Haas effect measurements, which reveals only three-dimensional Fermi sheets. Kohler scaling applied to magnetoresistance data accounts very well for its low-temperature upturn behavior. The field-angle-dependent magnetoresistance demonstrates a 3D-scaling yielding effective mass anisotropy perfectly agreeing with electronic structure and quantum oscillations analysis, thus providing further support for 3D-Fermi surface scenario of magnetotransport, without necessity of invoking topologically non-trivial 2D states. We discuss data implying that analogous field-induced properties of LaSb can also be well understood in the framework of 3D multiband model.
description: 12 pages, 7 figures, 1 table + Supplementary Materials (3 pages, 2 figures, 1 table)
Typicality approach to the optical conductivity in thermal and many-body localized phases
Creators: name: Steinigeweg, Robin
name: Herbrych, Jacek
name: Pollmann, Frank
name: Brenig, Wolfram
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the frequency dependence of the optical conductivity $\text{Re} \, σ(ω)$ of the Heisenberg spin-$1/2$ chain in the thermal and near the transition to the many-body localized phase induced by the strength of a random $z$-directed magnetic field. Using the method of dynamical quantum typicality, we calculate the real-time dynamics of the spin-current autocorrelation function and obtain the Fourier transform $\text{Re} \, σ(ω)$ for system sizes much larger than accessible to standard exact-diagonalization approaches. We find that the low-frequency behavior of $\text{Re} \, σ(ω)$ is well described by $\text{Re} \, σ(ω) \approx σ_\text{dc} + a \, |ω|^α$, with $α\approx 1$ in a wide range within the thermal phase and close to the transition. We particularly detail the decrease of $σ_\text{dc}$ in the thermal phase as a function of increasing disorder for strong exchange anisotropies. We further find that the temperature dependence of $σ_\text{dc}$ is consistent with the existence of a mobility edge.
description: 5 pages, 5 figures (+ 3 pages, 5 figures)
title: The elbow: Review of anatomy and common pathology using different imaging techniques
Creators: name: Matos-Rojas, Irma
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Education
subject: Ultrasound-Colour Doppler
subject: MR
subject: CT
subject: Musculoskeletal joint
subject: Anatomy
subject: Pathology

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To illustrate the anatomy of the elbow. To know the more common non-tumor and tumor pathology of the elbow using the different imaging...
The 750 GeV Diphoton excess, Dark Matter and Constraints from the IceCube experiment
Creators: name: Morgante, Enrico
name: Racco, Davide
name: Rameez, Mohamed
name: Riotto, Antonio
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent LHC data show hints of a new resonance in the diphoton distribution at an invariant mass of 750 GeV. Interestingly, this new particle might be both CP odd and play the role of a portal into the dark matter sector. Under these assumptions and motivated by the fact that the requirement of $SU(2)_L$ invariance automatically implies the coupling of this alleged new resonance to $ZZ$ and $Zγ$, we investigate the current and future constraints coming from the indirect searches performed through the neutrino telescope IceCube. We show that these constraints can be stronger than the ones from direct detection experiments if the dark matter mass is larger than a few hundred GeV. Furthermore, in the scenario in which the dark matter is a scalar particle, the IceCube data limit the cross section between the DM and the proton to values close to the predicted ones for natural values of the parameters.
description: 20 pages, 6 figures; v2: added references; v3: published version, with some minor edits and including the exclusion bounds from searches of gamma rays
Violation of Cluster Decomposition and Absence of Light-Cones in Local Integer and Half-Integer Spin Chains
Creators: name: Dell'Anna, L.
name: Salberger, O.
name: Barbiero, L.
name: Trombettoni, A.
name: Korepin, V. E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We compute the ground state correlation functions of an exactly solvable chain of integer spins, recently introduced in [R. Movassagh and P. W. Shor, arXiv:1408.1657], whose ground-state can be expressed in terms of a uniform superposition of all colored Motzkin paths. Our analytical results show that for spin s$\ge$2 there is a violation of the cluster decomposition property. This has to be contrasted with s=1, where the cluster property holds. Correspondingly, for s=1 one gets a light-cone profile in the propagation of excitations after a local quench, while the cone is absent for s=2, as shown by time dependent density-matrix-renormalization-group. Moreover, we introduce an original solvable model of half-integer spins which we refer to as Fredkin spin chain, whose ground-state can be expressed in terms of superposition of all Dyck paths. For this model we exactly calculate the magnetization and correlation functions, finding that for s=1/2, a cone-like propagation occurs while for higher spins, s$\ge$3/2, the colors prevent any cone formation and clustering is violated, together with square root deviation from the area law for the entanglement entropy.
description: 9 pages, 8 figures, published version
Helium Stars: Towards an Understanding of Wolf-Rayet Evolution
Creators: name: McClelland, L. A. S.
name: Eldridge, J. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Wolf-Rayet (WR) stars are massive stars that have lost most or all of their hydrogen via powerful stellar winds. Recent observations have indicated that hydrogen-free WR stars have cooler temperatures than those predicted by current evolutionary models. To investigate how varying mass-loss rate affects WR evolution, we have created a grid of pure helium star models. We compare our results with Galactic and LMC WR observations and show that the temperature ranges of observed WR stars can be reproduced by varying the mass-loss rate, which effectively determines the size of the helium envelope around the core. We also find that WN and WO stars arise from more massive stars, whereas WC stars come from lower masses. This contradicts the standard Conti scenario by which WN and WC stars evolve in an age sequence. We also predict the magnitudes of our models at core-collapse and compare with observations of nearby progenitors of Type Ib/c supernovae. We confirm the findings of previous studies that suggest WR stars are the progenitors of core-collapse supernovae: the progenitors would remain unobserved except in the cases where the progenitor is a low-mass helium giant, as is the case of iPTF13bvn.
description: 16 pages, 13 figures, 1 Table. Accepted for publication in MNRAS
TESS Experiments: Economic Reality or Perceived State? How Self-Interest Shapes Social Policy Preferences
Creators: name: Eckhouse, Laurel
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Time-sharing Experiments for the Social Sciences (TESS) offers researchers the opportunity to capture the internal validity of experiments. Investigators submit proposals, and TESS fields successful proposals for free on a representative sample of adults in the United States. This experiment was conducted to examine the cognitive context in which individuals make decisions about their self-interest and policy support. Respondents were randomly assigned to one of four priming treatments (income, objective factors, subjective factors, or no prime/control). Priming consisted of a set of questions aimed at activating the target element of self-interest. A total of 2,121 respondents participated. All respondents were asked to indicate their support of policies regarding taxes on the wealthy, increased government services, and government involvement in health care. This allowed for comparison of policy support across different forms of self-interest.
title: TDIOF: Incorporating Tissue Doppler in Speckle Tracking
Creators: name: Tavakoli, Vahid
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Embolism / Thrombosis
subject: Computer Applications-Detection, diagnosis
subject: Ultrasound
subject: Cardiac

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Recently, echocardiography techniques such as motion and strain estimation have been used increasingly in modern medicine for the evaluation of cardiac function and to provide quantitative...
title: Radiation Dose Training- Awareness among our doctors adequate to make justifiable referrals to radiology department??
Creators: name: Dawood, Annum
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Radioprotection / Radiation dose
subject: Conventional radiography
subject: Radiation safety
subject: Biological effects

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The aim of this study was to assess awareness among our doctors from all the clinical departments expect radiology, of a tertiary cancer care hospital about radiation dose and its associated risk to the exposed individual. The purpose behind this...
title: Lemierre’s syndrome and its sequelae – An uncommon disease with devastating consequences
Creators: name: Santosh, Divya
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Infection
subject: Education
subject: Ultrasound
subject: MR
subject: CT
subject: Head and neck

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To review and illustrate the constellations of imaging findings of Lemierre’s...
What is the effect of synergy in international collaboration on regional economies?
Creators: name: Ivanova, Inga
name: Strand, Oivind
name: Leydesdorff, Loet
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: We analyze the effects of relative increments of mutual information among the geographical, technological, and organizational distributions of firms on the relative augmentation of regional summary turnover in terms of synergies. How do increases in synergy in international cooperation affect regional turnover? The methodological contribution of this study is that we translate the synergy (abstractly measured in bits of information) into more familiar economic terms, such as turnover for the special case of domestic-foreign collaborations. The analysis is based on Norwegian data, as Norway is a small country with an open and export-oriented economy. Data for Norway is publicly available in great detail.
title: Comparison of UTE sequence and MSCT in 15 mummified specimens from Archeological Museum in Zagreb
Creators: name: Cavka, Mislav
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Forensic / Necropsy studies
subject: Animal (veterinary) studies
subject: MR physics
subject: CT
subject: MR
subject: Digital radiography
subject: Comparative studies
subject: Neoplasia
subject: Trauma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Introduction: Only few months after the discovery of X-rays, first x-ray studies on mummies were performed. Therefore paleoradiology is as old as radiology. Later advances in radiology were applied almost simultaneously in paleoradiology. Mummies...
title: Assessment of Vasospasm and Delayed Cerebral Ischemia after Subarachnoid Hemorrhage: Current concepts and Value of CT Perfusion and CT Angiography
Creators: name: Kemmling, Andre
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: CT
subject: CT-Angiography
subject: CT-Quantitative
subject: Diagnostic procedure
subject: Computer Applications-General
subject: Ischaemia / Infarction

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The aim of the study is to present an overview of the currently used radiologic methods in the evaluation of delayed cerebral ischemia and vasospasm with a special focus on CTP and...
String Moduli Stabilization at the Conifold
Creators: name: Blumenhagen, Ralph
name: Herschmann, Daniela
name: Wolf, Florian
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study moduli stabilization for type IIB orientifolds compactified on Calabi-Yau threefolds in the region close to conifold singularities in the complex structure moduli space. The form of the periods implies new phenomena like exponential mass hierarchies even in the regime of negligible warping. Integrating out the heavy conic complex structure modulus leads to an effective flux induced potential for the axio-dilaton and the remaining complex structure moduli containing exponentially suppressed terms that imitate non-perturbative effects. It is shown that this scenario can be naturally combined with the large volume scenario so that all moduli are dynamically stabilized in the dilute flux regime. As an application of this moduli stabilization scheme, a string inspired model of aligned inflation is designed that features a parametrically controlled hierarchy of mass scales.
description: 33 pages, 4 figures, v2: final version
title: Aortic dissection: Aspects on computed tomography
Creators: name: Sousa, Marta
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Dissection
subject: Education
subject: Diagnostic procedure
subject: CT-Angiography
subject: CT
subject: Cardiovascular system
subject: Anatomy

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To review the pathogenesis and classification systems for aortic dissection (AD). To illustrate the typical computed tomography (CT) findings based on our department clinical database. To discuss the best imaging methods to study the aforementioned...
Improving Students' Understanding of Quantum Measurement Part 1: Investigation of Difficulties
Creators: name: Zhu, Guangtian
name: Singh, Chandralekha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: We describe the difficulties that advanced undergraduate and graduate students have with quantum measurement within the standard interpretation of quantum mechanics. We explore the possible origins of these difficulties by analyzing student responses to questions from both surveys and interviews. Results from this research are applied to develop research-based learning tutorials to improve students' understanding of quantum measurement.
Affine relationships between steady currents
Creators: name: Khodabandehlou, Faezeh
name: Maes, Christian
name: Netočný, Karel
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Perturbing transition rates in a steady nonequilibrium system, e.g. modelled by a Markov jump process, causes a change in the local currents. Their susceptibility is usually expressed via Green-Kubo relations or their nonequilibrium extensions. However, we may also wish to directly express the mutual relation between currents. Such a nonperturbative interrelation was discovered by P.E. Harunari et al. in [1] by applying algebraic graph theory showing the mutual linearity of currents over different edges in a graph. We give a novel and shorter derivation of that current relationship where we express the current-current susceptibility as a difference in mean first-passage times. It allows an extension to multiple currents, which remains affine but the relation is not additive.
title: Preoperative evaluation of craniosynostosis: Multimodality imaging approach
Creators: name: Sousa, Marta
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Diagnostic procedure
subject: MR
subject: CT
subject: Conventional radiography
subject: Paediatric
subject: Bones
subject: Congenital

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To illustrate the imaging features of various types of idiopathic and syndromic craniosynostosis To discuss differential diagnosis and the advantages and limitations of imaging...
Stereotype and Most-Popular Recommendations in the Digital Library Sowiport
Creators: name: Beel, Joeran
name: Dinesh, Siddharth
name: Mayr, Philipp
name: Carevic, Zeljko
name: Raghvendra, Jain
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: evaluation
subject: recommendations
subject: digital libraries
subject: recommender systems
subject: stereotype
subject: most-popular recommendations
subject: content-based filtering
subject: 020 Bibliotheks- und Informationswissenschaft

description: Stereotype and most-popular recommendations are widely neglected in the research-paper recommender system and digital-library community. In other domains such as movie recommendations and hotel search, however, these recommendation approaches have proven their effectiveness. We were interested to find out how stereotype and most-popular recommendations would perform in the scenario of a digital library. Therefore, we implemented the two approaches in the recommender system of GESIS’ digital library Sowiport, in cooperation with the recommendations-as-a-service provider Mr. DLib. We measured the effectiveness of most-popular and stereotype recommendations with click-through rate (CTR) based on 28 million delivered recommendations. Most-popular recommendations achieved a CTR of 0.11%, and stereotype recommendations achieved a CTR of 0.124%. Compared to a “random recommendations” baseline (CTR 0.12%), and a content based filtering baseline (CTR 0.145%), the results are discouraging. However, for reasons explained in the paper, we concluded that more research is necessary about the effectiveness of stereotype and most-popular recommendations in digital libraries.
Welche Folgen hat die Skepsis gegenüber den Berichten über Jesus?
Creators: name: Graf-Stuhlhofer, Franz
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1639351345
description: Jahrbuch für evangelikale Theologie, V. 7 (1993): Jahrbuch für evangelikale Theologie, Band 7
A Reference Architecture for Virtual Research Environments
Creators: name: Jeffery, Keith G.
name: Meghini, Carlo
name: Concordia, Cesare
name: Patkos, Theodore
name: Brasse, Valerie
name: Ossenbruck, Jacco Von
name: Marketakis, Yannis
name: Minadakis, Nikos
name: Marchetti, Eda
Publisher: name: Humboldt-Universität zu Berlin
Year: 2017
Subjects: subject: interoperability
subject: innovation
subject: collaboration
subject: Virtual Research Environments
subject: multidisciplinary
subject: distributed systems architecture
subject: use cases
subject: 020 Bibliotheks- und Informationswissenschaft

description: This paper describes the Reference Architecture of the enhanced VRE (e-VRE), a Virtual Research Environment defined in the context of the VRE4EIC Project, funded by EU H2020 e-Infrastructure program. e-VRE is designed to overcome limits of existing VREs with respect to a number of orthogonal dimensions: improving the quality of VRE user experience by providing user centered, secure, privacy compliant, sustainable environments for accessing data, composing workflows and tracking data publications; increasing VRE usage in multidisciplinary research domains by abstracting and reusing building blocks and workflows from existing VRE initiatives; improving the interoperability of heterogeneous discovery, contextual and detailed metadata across all layers of the VRE.
Variational Latent Gaussian Process for Recovering Single-Trial Dynamics from Population Spike Trains
Creators: name: Zhao, Yuan
name: Park, Il Memming
Publisher: name: arXiv
Year: 2016
Subjects: subject: Machine Learning (stat.ML)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: When governed by underlying low-dimensional dynamics, the interdependence of simultaneously recorded population of neurons can be explained by a small number of shared factors, or a low-dimensional trajectory. Recovering these latent trajectories, particularly from single-trial population recordings, may help us understand the dynamics that drive neural computation. However, due to the biophysical constraints and noise in the spike trains, inferring trajectories from data is a challenging statistical problem in general. Here, we propose a practical and efficient inference method, called the variational latent Gaussian process (vLGP). The vLGP combines a generative model with a history-dependent point process observation together with a smoothness prior on the latent trajectories. The vLGP improves upon earlier methods for recovering latent trajectories, which assume either observation models inappropriate for point processes or linear dynamics. We compare and validate vLGP on both simulated datasets and population recordings from the primary visual cortex. In the V1 dataset, we find that vLGP achieves substantially higher performance than previous methods for predicting omitted spike trains, as well as capturing both the toroidal topology of visual stimuli space, and the noise-correlation. These results show that vLGP is a robust method with a potential to reveal hidden neural dynamics from large-scale neural recordings.
title: Correlation of bronchial wall thickness with lung function parameters in patients after lung transplantation
Creators: name: Dettmer, Sabine
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Transplantation
subject: Technical aspects
subject: Computer Applications-General
subject: CT-Quantitative
subject: CT
subject: Thorax
subject: Respiratory system
subject: Lung

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Bronchiolitis obliterans syndrome following lung transplantation is the main complication after lung transplantation (Al Githmi et al., 2006). The morphological changes of the small airways can to some extend be related to bronchial wall thickening...