cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Comparison of the Finite Element Method (FEM) with nonlinear structure parameters in the Analysis of High Resolution (HR) MRI of the distal radius in the context of osteoporosis
Creators: name: Mueller, Dirk
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal bone
subject: Musculoskeletal joint
subject: Musculoskeletal soft tissue
subject: MR
subject: MR-Diffusion/Perfusion
subject: CT-High Resolution
subject: Computer Applications-3D
subject: Osteoporosis
subject: Ischaemia / Infarction

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: High resolution (HR) magnetic resonance (MR) imaging is widely used for the assessment of the structural characteristics of trabecular bone 1-6 . Detailed description of the topological and biomechanical properties of the cancellous bone...
title: Calcific shoulder tendinitis: outcomes after percutaneous treatment with Ultrasonography-guided needle aspiration of calcific deposits and bursal injection with steroids and local anaesthetics.
Creators: name: van Vliet - Hein, Sandra
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Calcifications / Calculi
subject: Treatment effects
subject: Ultrasound
subject: Musculoskeletal soft tissue

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Calcific tendinitis of the rotator cuff (predominantly in the supraspinatus tendon) is a common disorder and shows the highest incidence in adults aged between 30 and 50 years. Radiologically evident calcification has been described in about 7% of...
title: Imaging of hand and wrist masses. A University Hospital experience
Creators: name: Chari, Basavaraj
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal soft tissue
subject: Extremities
subject: MR
subject: Ultrasound
subject: Diagnostic procedure
subject: Neoplasia
subject: Cysts

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The peripheral masses around hand and wrist are a common presentation in clinical practice. A vast majority of soft tissue mass lesions of the wrist and hand are benign [1, 2]. In our practice, the most common lesions encountered were ganglia (Fig...
Holography as a highly efficient RG flow II: An explicit construction
Creators: name: Behr, Nicolas
name: Mukhopadhyay, Ayan
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We complete the reformulation of the holographic correspondence as a \emph{highly efficient RG flow} that can also determine the UV data in the field theory in the strong coupling and large $N$ limit. We introduce a special way to define operators at any given scale in terms of appropriate coarse-grained collective variables, without requiring the use of the elementary fields. The Wilsonian construction is generalised by promoting the cut-off to a functional of these collective variables. We impose three criteria to determine the coarse-graining. The first criterion is that the effective Ward identities for local conservation of energy, momentum, etc. should preserve their standard forms, but in new scale-dependent background metric and sources which are functionals of the effective single trace operators. The second criterion is that the scale-evolution equations of the operators in the actual background metric should be state-independent, implying that the collective variables should not explicitly appear in them. The final criterion is that the endpoint of the scale-evolution of the RG flow can be transformed to a fixed point corresponding to familiar non-relativistic equations with a finite number of parameters, such as incompressible non-relativistic Navier-Stokes, under a certain universal rescaling of the scale and of the time coordinate. Using previous work, we explicitly show that in the hydrodynamic limit each such highly efficient RG flow reproduces a unique classical gravity theory with precise UV data that satisfy our IR criterion. We obtain the explicit coarse-graining which reproduces Einstein's equations. In a simple example, we are also able to compute the beta function. Finally, we show how our construction can be interpolated with the traditional Wilsonian RG flow at a suitable scale, and can be used to develop new non-perturbative frameworks for QCD-like theories.
description: 1+59 pages; Introduction slightly expanded, Section V on beta function in highly efficient RG flow added, version accepted in PRD
title: Role of PET-CT in suspected or confirmed osteomyelitis - A University Hospital experience
Creators: name: Chari, Basavaraj
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Molecular imaging
subject: PET-CT
subject: Musculoskeletal bone
subject: Molecular imaging
subject: Extremities
subject: Infection

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Combined positron emission tomography/computed tomography (PET/CT) offers a more accurate way to detect osteomyelitis of the extremity in patients with suspected infection and to distinguish it from soft-tissue infection. 18F-Fluorodeoxyglucoseis a...
title: Feasibility study of high resolution PDw imaging of cartilage of the ankle at 7Tesla MRI
Creators: name: Korteweg, Mies
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Imaging sequences
subject: MR
subject: Musculoskeletal system
subject: Musculoskeletal joint
subject: MR physics
subject: Tissue characterisation
subject: Athletic injuries

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To develop a high resolution multi-slice Proton Density weighted (PDw) sequence at 7T to allow detailed imaging of ankle...
Quantum gravity kinematics from extended TQFTs
Creators: name: Dittrich, Bianca
name: Geiller, Marc
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show how extended topological quantum field theories (TQFTs) can be used to obtain a kinematical setup for quantum gravity, i.e. a kinematical Hilbert space together with a representation of the observable algebra including operators of quantum geometry. In particular, we consider the holonomy-flux algebra of (2+1)-dimensional Euclidean loop quantum gravity, and construct a new representation of this algebra that incorporates a positive cosmological constant. The vacuum state underlying our representation is defined by the Turaev-Viro TQFT. We therefore construct here a generalization, or more precisely a quantum deformation at root of unity, of the previously-introduced SU(2) BF representation. The extended Turaev-Viro TQFT provides a description of the excitations on top of the vacuum, which are essential to allow for a representation of the holonomies and fluxes. These excitations agree with the ones induced by massive and spinning particles, and therefore the framework presented here allows automatically for a description of the coupling of such matter to (2+1)-dimensional gravity with a cosmological constant. The new representation presents a number of advantages over the representations which exist so far. It possesses a very useful finiteness property which guarantees the discreteness of spectra for a wide class of quantum (intrinsic and extrinsic) geometrical operators. The notion of basic excitations leads to a fusion basis which offers exciting possibilities for constructing states with interesting global properties. The work presented here showcases how the framework of extended TQFTs can help design new representations and understand the associated notion of basic excitations. This is essential for the construction of the dynamics of quantum gravity, and will enable the study of possible phases of spin foam models and group field theories from a new perspective.
description: 81 pages
Slowly rotating neutron stars in the nonminimal derivative coupling sector of Horndeski gravity
Creators: name: Cisterna, Adolfo
name: Delsate, Térence
name: Ducobu, Ludovic
name: Rinaldi, Massimiliano
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This work is devoted to the construction of slowly rotating neutron stars in the framework of the nonminimal derivative coupling sector of Horndeski theory. We match the large radius expansion of spherically symmetric solutions with cosmological solutions and we find that the most viable model has only one free parameter. Then, by using several tabulated and realistic equations of state, we establish numerically the upper bound for this parameter in order to construct neutron stars in the slow rotation approximation with the maximal mass observed today. We finally study the surface redshift and the inertia of these objects and compare them with known data.
description: 29 pages, 6 figures, revtex preprint style. Few typos corrected, one reference added. Version accepted for publication in Physical Review D
title: MRI Examination of the Temporomandibular Joint Using a Microscopy Coil
Creators: name: Šprláková-Puková, Andrea
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal joint
subject: MR
subject: Imaging sequences
subject: Motility

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The temporomandibular joint is a synovial joint and receives heavy use during a person’s life. The joint is made up of the condylar process of the mandible and the mandibular fossa on the temporal bone. The non-bone part of the joint is the...
title: Facial skeletal fractures in motor vehicle accidents: A pictorial MDCT essay
Creators: name: Perdikakis, Evangelos
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Bones
subject: Emergency
subject: Trauma
subject: CT
subject: Education
subject: Trauma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Maxillofacial skeletal fractures are an increasingly common reason for presenting at the Emergency Department. They are common sequelae of motor vehicle accidents, falls, sports injuries and other rarer etiologies of blunt facial trauma. The...
Time-Reversal of Nonlinear Waves - Applicability and Limitations
Creators: name: Ducrozet, G.
name: Fink, M.
name: Chabchoub, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Time-reversal (TR) refocusing of waves is one of fundamental principles in wave physics. Using the TR approach, "Time-reversal mirrors" can physically create a time-reversed wave that exactly refocus back, in space and time, to its original source regardless of the complexity of the medium as if time were going backwards. Lately, laboratory experiments proved that this approach can be applied not only in acoustics and electromagnetism but also in the field of linear and nonlinear water waves. Studying the range of validity and limitations of the TR approach may determine and quantify its range of applicability in hydrodynamics. In this context, we report a numerical study of hydrodynamic TR using a uni-directional numerical wave tank, implemented by the nonlinear high-order spectral method, known to accurately model the physical processes at play, beyond physical laboratory restrictions. The applicability of the TR approach is assessed over a variety of hydrodynamic localized and pulsating structures' configurations, pointing out the importance of high-order dispersive and particularly nonlinear effects in the refocusing of hydrodynamic stationary envelope solitons and breathers. We expect that the results may motivate similar experiments in other nonlinear dispersive media and encourage several applications with particular emphasis on the field of ocean engineering.
description: 14 pages, 17 figures ; accepted for publication in Phys. Rev. Fluids
Equation of state for random sphere packing with arbitrary adhesion and friction
Creators: name: Liu, Wenwei
name: Jin, Yuliang
name: Chen, Sheng
name: Makse, Hernán A.
name: Li, Shuiqing
Publisher: name: arXiv
Year: 2016
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We systematically generate a large set of random micro-particle packings over a wide range of adhesion and friction by means of adhesive contact dynamics simulation. The ensemble of generated packings covers a range of volume fraction $ϕ$ from $0.135 \pm 0.007$ to $0.639 \pm 0.004$, and of coordination number $Z$ from $2.11 \pm 0.03$ to $6.40 \pm 0.06$. We determine $ϕ$ and $Z$ at four limits (random close packing, random loose packing, adhesive close packing, and adhesive loose packing), and find a universal equation of state $ϕ(Z)$ to describe packings with arbitrary adhesion and friction. From a mechanical equilibrium analysis, we determine a critical friction coefficient $μ_{\rm f, c}$: when the friction coefficient $μ_{\rm f}$ is below $μ_{\rm f, c}$, particles' rearrangements are dominated by sliding, otherwise, they are dominated by rolling. Because of this reason, both $ϕ(μ_{\rm f})$ and $Z(μ_{\rm f})$ change sharply across $μ_{\rm f, c}$. Finally, we generalize the Maxwell counting argument to micro-particle packings, and show that the loosest packing, i.e., adhesive loose packing, satisfies the isostatic condition at $Z=2$.
description: 7 pages, 5 figures
Trigger Swap Model
Creators: name: , Yang
Publisher: name: Zenodo
Year: 2022
Subjects: trigger swap, valuation

description: A European trigger swap is a swap that is triggered by the level of an index. For example, for a call type trigger swap, if the index is above the strike at the expiry, one counterparty receives the prescribed fixed rate. Other wise, the party receives spot swap rates.
description: https://finpricing.com/lib/EqBarrier.html
Ultrafast exciton relaxation in monolayer transition metal dichalcogenides
Creators: name: Thilagam, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examine a mechanism by which excitons undergo ultrafast relaxation in common monolayer transition metal dichalcogenides. It is shown that at densities $\approx$ 1$\times$ 10$^{11}$ cm$^{-2}$ and temperatures $ \le 60$ K, excitons in well known monolayers (MoS$_2$, MoSe$_2$, WS$_2$ and WSe$_2$) exist as point-like structureless electron-hole quasi-particles. We evaluate the average rate of exciton energy relaxation due to acoustic phonons via the deformation potential and the piezoelectric coupling mechanisms and examine the effect of spreading of the excitonic wavefunction into the region perpendicular to the monolayer plane. Our results show that the exciton relaxation rate is enhanced with increase in the exciton temperature, while it is decreased with increase in the lattice temperature. Good agreements with available experimental data are obtained when the calculations are extrapolated to room temperatures. A unified approach taking into account the deformation potential and piezoelectric coupling mechanisms shows that exciton relaxation induced by phonons is as significant as defect assisted scattering and trapping of excitons by surface states in monolayer transition metal dichalcogenides.
description: 10 pages, 3 figs., Typo below Eq. 6, Journ. of Applied Phys.,119, 164306 (2016)
title: MRI findings of scaphoid fracture
Creators: name: Madeira, Gerardo Jorge
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal bone
subject: MR
subject: Imaging sequences
subject: Trauma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To make an imagenologic revision of the different patterns of osseous edema with Magnetic Resonance Imaging of the scaphoid fracture and its...
Character relations and replication identities in 2d Conformal Field Theory
Creators: name: Bantay, P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study replication identities satisfied by conformal characters of a 2D CFT, providing a natural framework for a physics interpretation of the famous Hauptmodul property of Monstrous Moonshine, and illustrate the underlying ideas in simple cases.
description: Some references added and conclusions greatly expanded
Weak coupling of pseudoacoustic phonons and magnon dynamics in incommensurate spin ladder compound Sr14Cu24O41
Creators: name: Chen, Xi
name: Bansal, Dipanshu
name: Sullivan, Sean
name: Abernathy, Douglas L.
name: Aczel, Adam A.
name: Zhou, Jianshi
name: Delaire, Olivier
name: Shi, Li
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Intriguing lattice dynamics has been predicted for aperiodic crystals that contain incommensurate substructures. Here we report inelastic neutron scattering measurements of phonon and magnon dispersions in Sr14Cu24O41, which contains incommensurate one-dimensional (1D) chain and two-dimensional (2D) ladder substructures. Two distinct pseudoacoustic phonon modes, corresponding to the sliding motion of one sublattice against the other, are observed for atomic motions polarized along the incommensurate axis. In the long wavelength limit, it is found that the sliding mode shows a remarkably small energy gap of 1.7-1.9 meV, indicating very weak interactions between the two incommensurate sublattices. The measurements also reveal a gapped and steep linear magnon dispersion of the ladder sublattice. The high group velocity of this magnon branch and weak coupling with acoustic and pseudoacoustic phonons can explain the large magnon thermal conductivity in Sr14Cu24O41 crystals. In addition, the magnon specific heat is determined from the measured total specific heat and phonon density of states, and exhibits a Schottky anomaly due to gapped magnon modes of the spin chains. These findings offer new insights into the phonon and magnon dynamics and thermal transport properties of incommensurate magnetic crystals that contain low-dimensional substructures.
title: Osteoporosis and articular psoriasis: our experience in 51 patients with psoriatic arthropathy and osteoporosis studied with DEXA bone densitometry and morphometry
Creators: name: Cristiano, Lara
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Demineralisation-Bone
subject: Arthritides
subject: Diagnostic procedure
subject: Absorptiometry / Bone densitometry
subject: Musculoskeletal spine

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The aim of the study is to analyze the risk of vertebral fractures in a group of patients with psoriatic arthropathy through morphometric and densitometric...
title: MRI Scanning of clinically suspected Scaphoid fracture
Creators: name: Kamalaldin, Ahmed
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Bones
subject: Musculoskeletal bone
subject: MR
subject: Radiobiology
subject: Trauma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To determine the number/percentage of Scaphoid bone fractures/bruises, other hand bones trauma (fracture/bruises) and non bony traumatic lesions out of all patients that has been MR scanned for clinically suspected Scaphoid fracture. Figuring out...
Modeling the shadow of Sgr A* through an eclipsing black hole
Creators: name: Santibañez-Armenta, Milton Jair
name: Magallanes-Guijón, Gustavo
name: Mendoza, Sergio
name: Cruz-Osorio, Alejandro
Publisher: name: arXiv
Year: 2025
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Event Horizon Telescope (EHT) observations of Sgr\,A* resolved the shadow image and emission ring-like structure, which is associated to the photon ring of the supermassive black hole, at the galactic centre, revealing a diameter of $51.8~μ\text{as}$. The ring-like structure is consistent with that of a Kerr black hole. However, the source of the high bright regions in the image and the time variability remain an open question. Besides the plasma properties and emission models, the spacetime geometry also holds an important role. We present an image depicting the bright hot spots consistent with Sgr\,A* observations at a wavelength $ λ= 1.3\, {\rm mm}$. The image is the result of an eclipsing Schwarzschild black hole situated along the line of sight between the galactic centre and Earth. The separation from both, primary (Sgr\,A*) and secondary (eclipsing) black holes is $10233\, {\rm AU}$. The central supermassive black hole located at the centre of the galaxy has an observational mass of $4.14\times10^6\,M_{\odot}$ and the secondary eclipsing black hole has an inferred mass of $1035\,M_{\odot}$.
description: 4 pages, 3 figures, accepted for publication in MNRAS letters
title: Contrast-Enhanced Ultrasound in Knee Joint Synovitis Measurement
Creators: name: Rednic, Nicolae
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal joint
subject: Ultrasound
subject: Ultrasound-Power Doppler
subject: Contrast agent-intravenous
subject: Diagnostic procedure
subject: Arthritides

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: INTRODUCTION: Rheumatoid arthritis (RA) patients with ultrasound (US) knee involvement have a more severe and active disease. The knee synovitis response to treatment is not similar to hand joints response. Knee joints could be more suitable than...
FM system use on phonological awareness skills (Reynolds & Werfel, 2022)
Creators: name: Reynolds, Gabriella
name: Werfel, Krystal L.
Publisher: name: ASHA journals
Year: 2022
Subjects: Speech recognition
Speech pathology
Child language acquisition

description: Purpose: This study evaluated the effects of utilizing a frequency modulation (FM) system during phonological awareness intervention for students at risk for dyslexia in a classroom setting. Method: Four first-grade students participated in an adapted-alternating single-case design study. Participants completed intervention targeting two phonological awareness skills and were assigned to wear an FM system during lessons targeting one skill and no FM system during lessons targeting the second skill. Performance was assessed using daily assessments on the skills targeted during intervention and one additional skill. Results: Two participants demonstrated quicker and more pronounced improvement on the skill learned while wearing the FM system. The other two participants did not show improvement on any skill. Conclusions: For children who made gains as a result of phonological awareness intervention, the FM system was associated with quicker and greater improvement. FM systems show promise as a tool to use during phonological awareness training for at least some children at risk for dyslexia.
 Supplemental Material S1. Schedule of teacher training for phonological awareness + FM intervention.
 Supplemental Material S2. Progress monitoring assessment.
 Reynolds, G., & Werfel, K. (2022). Impact of FM system use on acquisition of phonological awareness skills for children at risk of dyslexia: A preliminary classroom study. American Journal of Speech-Language Pathology. Advance online publication. https://doi.org/10.1044/2022_AJSLP-22-00002
title: Imaging features of aneurismal bone cysts
Creators: name: Vasilevska Nikodinovska, Violeta
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Perception image
subject: Conventional radiography
subject: MR
subject: CT
subject: Musculoskeletal bone
subject: Cysts

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To analyze different imaging presentations of primary aneurismal bone...
The Solar Internetwork. II. Magnetic Flux Appearance and Disappearance Rates
Creators: name: Gošić, Milan
name: Rubio, Luis R. Bellot
name: Iniesta, Jose Carlos Del Toro
name: Suárez, David Orozco
name: Katsukawa, Yukio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Small-scale internetwork magnetic fields are important ingredients of the quiet Sun. In this paper we analyze how they appear and disappear on the solar surface. Using high resolution Hinode magnetograms, we follow the evolution of individual magnetic elements in the interior of two supergranular cells at the disk center. From up to 38 hr of continuous measurements, we show that magnetic flux appears in internetwork regions at a rate of $120\pm3$ Mx cm$^{-2}$ day$^{-1}$ ($3.7 \pm 0.4 \times 10^{24}$ Mx day$^{-1}$ over the entire solar surface). Flux disappears from the internetwork at a rate of $125 \pm 6$ Mx cm$^{-2}$ day$^{-1}$ ($3.9\pm 0.5 \times 10^{24}$ Mx day$^{-1}$) through fading of magnetic elements, cancellation between opposite-polarity features, and interactions with network patches, which converts internetwork elements into network features. Most of the flux is lost through fading and interactions with the network, at nearly the same rate of about 50 Mx cm$^{-2}$ day$^{-1}$. Our results demonstrate that the sources and sinks of internetwork magnetic flux are well balanced. Using the instantaneous flux appearance and disappearance rates, we successfully reproduce the time evolution of the total unsigned flux in the two supergranular cells.
description: 8 pages, 6 figures. Accepted in ApJ. An animation of the right panel of Figure 1 is available at http://spg.iaa.es/pub/downloads/gosic/figure1_right_panel.tar
title: Assessment of the basal metabolic rate (BMR) with dual energy x-ray absorptiometry (DXA) in the management of the obese patient
Creators: name: Ponti, Federico
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Eating disorders
subject: Metabolic disorders
subject: Experimental investigations
subject: Treatment effects
subject: Absorptiometry / Bone densitometry
subject: Abdomen
subject: Musculoskeletal soft tissue
subject: Management

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The epidemic of obesity has been documented in several regions worldwide, with the prevalence of obesity rising in most countries. The estimated total numbers of overweight and obese adults in 2005 were 937 million and 396 million, respectively. By...
title: Bone metabolism and densitometric parameters: relationships between lumbar spine and total-body analysis
Creators: name: Ponti, Federico
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Osteoporosis
subject: Metabolic disorders
subject: Demineralisation-Bone
subject: Comparative studies
subject: Equipment
subject: Diagnostic procedure
subject: Absorptiometry / Bone densitometry
subject: Neuroradiology spine
subject: Musculoskeletal bone
subject: Bones
subject: Musculoskeletal spine

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Dual energy X-ray absorptiometry (DXA) measurements of bone mineral density (BMD) have a key role in the evaluation of individuals at risk of osteoporosis. Spine and hip densitometric scans remain the most common and validated applications of DXA...
System-time entanglement in a discrete time model
Creators: name: Boette, A.
name: Rossignoli, R.
name: Gigena, N.
name: Cerezo, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a model of discrete quantum evolution based on quantum correlations between the evolving system and a reference quantum clock system. A quantum circuit for the model is provided, which in the case of a constant Hamiltonian is able to represent the evolution over $2^n$ time steps in terms of just $n$ time qubits and $n$ control gates. We then introduce the concept of system-time entanglement as a measure of distinguishable quantum evolution, based on the entanglement between the system and the reference clock. This quantity vanishes for stationary states and is maximum for systems jumping onto a new orthogonal state at each time step. In the case of a constant Hamiltonian leading to a cyclic evolution it is a measure of the spread over distinct energy eigenstates, and satisfies an entropic energy-time uncertainty relation. The evolution of mixed states is also examined. Analytical expressions for the basic case of a qubit clock, as well as for the continuous limit in the evolution between two states, are provided.
description: 7 pages, 2 figures, examples added
Birationally rigid singular double quadrics and double cubics
Creators: name: Johnstone, Ewan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper a large class of Fano double quadrics and cubics are shown to be factorial and birationally superrigid, in particular they admit no non-trivial structure of a fibration with rationally connected fibres and are therefore non-rational. This is shown using the "Method of maximal singularities" of Iskovskikh and Manin, expanded upon by Pukhlikov. In addition, an estimate of the codimension of the set of such varieties is calculated.
description: Second version. The assumptions on dimension and rank of the singularities have been altered slightly. A small regularity condition has been added to the case of double cubics
title: Advanced hip assessment: correlation with conventional DXA parameters
Creators: name: Ponti, Federico
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Bones
subject: Musculoskeletal bone
subject: Absorptiometry / Bone densitometry
subject: Technology assessment
subject: Statistics
subject: Demineralisation-Bone
subject: Osteoporosis
subject: Metabolic disorders

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Osteoporosis is one of the world’s most significant health problem, affecting more than 200 million individuals [1]. Bone mineral density (BMD)assessed bydual energy X-ray absorptiometry (DXA) is currently the most frequently used technique for...
title: Differentiating between the arthritides in the hand and wrist: A collaboration between clinical and radiological findings.
Creators: name: Chew, Ne Siang
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Arthritides
subject: Diagnostic procedure
subject: Decision analysis
subject: Ultrasound-Power Doppler
subject: Conventional radiography
subject: MR
subject: Musculoskeletal joint
subject: Extremities
subject: Education and training

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Differentiating between the arthritides in the hand and wrist can be perplexing and difficult even for the seasoned clinician. We present a few clinical conundrums and how it may be possible to separate and delineate these common arthritides. A...
title: Second Ray Syndrome (SRS): Multimodality Imaging for early assessment of the
Creators: name: Fabbro, Emanuele
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal joint
subject: Conventional radiography
subject: MR
subject: Ultrasound
subject: Education
subject: Arthritides

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The purpose of this study is to demonstrate the spectrum of radiological appearances encountered in the SRS and its mimics, using a multi-modality approach. The role of high resolution ultrasound(HR-US)in the early diagnosis will be...
On extreme points of the diffusion polytope
Creators: name: Hay, M. J.
name: Schiff, J.
name: Fisch, N. J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We consider a class of diffusion problems defined on simple graphs in which the populations at any two vertices may be averaged if they are connected by an edge. The diffusion polytope is the convex hull of the set of population vectors attainable using finite sequences of these operations. A number of physical problems have linear programming solutions taking the diffusion polytope as the feasible region, e.g. the free energy that can be removed from plasma using waves, so there is a need to describe and enumerate its extreme points. We review known results for the case of the complete graph $K_n$, and study a variety of problems for the path graph $P_n$ and the cyclic graph $C_n$. We describe the different kinds of extreme points that arise, and identify the diffusion polytope in a number of simple cases. In the case of increasing initial populations on $P_n$ the diffusion polytope is topologically an $n$-dimensional hypercube.
description: 10 pages, 8 figures
title: DIAGNOSTIC IMAGING MONITORING OF CLINICAL EFFICACY OF FRACTIONATED RADIOTHERAPY 3 Gy x 10 IN PATIENTS AFFECTED BY VERTEBRAL LOCALIZATIONS FROM MULTIPLE MYELOMA
Creators: name: Cristiano, Lara
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal bone
subject: Oncology
subject: CT
subject: MR
subject: Contrast agent-intravenous
subject: Efficacy studies
subject: Haematologic diseases
subject: Neoplasia
subject: Metastases

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To evaluate the effect of radiotherapy give at the dose of 3 Gy in 10 fractions for painful vertebral bone lesions from multiple myeloma in terms of pain relief and...
title: Ultrasound (US)-guided viscosupplementation (VS) of the hip: efficacy in patients with femoroacetabular impingement (FAI)
Creators: name: Ferrero, Giulio
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Inflammation
subject: Treatment effects
subject: Ultrasound
subject: Musculoskeletal system

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: US-guided hip viscosupplementation (VS) in symptomatic osteoarthritis (OA) is a safe and effective treatment. It could replace the continuous therapy with nonsteroidal anti-inflammatory drugs, delay the prosthesis implantation and improve the...
Asymmetric Dark Matter in the Sun and the Diphoton Excess at the LHC
Creators: name: Dev, P. S. Bhupal
name: Teresi, Daniele
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: It has been recently pointed out that a momentum-dependent coupling of the asymmetric Dark Matter (ADM) with nucleons can explain the broad disagreement between helioseismological observables and the predictions of standard solar models. In this paper, we propose a minimal simplified ADM model consisting of a scalar and a pseudoscalar mediator, in addition to a Dirac fermionic DM, for generating such momentum-dependent interactions. Remarkably, the pseudoscalar with mass around 750 GeV can simultaneously explain the solar anomaly and the recent diphoton excess observed by both ATLAS and CMS experiments in the early $\sqrt s=13$ TeV LHC data. In this framework, the total width of the resonance is naturally large, as suggested by the ATLAS experiment, since the resonance mostly decays to the ADM pair. The model predicts the existence of a new light scalar in the GeV range, interacting with quarks, and observable dijet, monojet and $t\bar{t}$ signatures for the 750 GeV resonance at the LHC.
description: 7 pages, 4 figures. Version to appear in PRD
title: Musculoskeletal intervention. How successful are our injections?
Creators: name: Allen, Georgina
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Inflammation
subject: Treatment effects
subject: Ultrasound
subject: Musculoskeletal system
subject: Interventional non-vascular

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To disprove the null hypothesis:- The injections that we perform do not lead to a successful or satisfactory outcome. Aims:- To assess the number and type of injections performed in a radiologists MSK practice. To assess whether these injections...
Renormalization on noncommutative torus
Creators: name: D'Ascanio, D.
name: Pisani, P.
name: Vassilevich, D. V.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a self-interacting scalar $φ^4$ theory on the $d$-dimensional noncommutative torus. We determine, for the particular cases $d=2$ and $d=4$, the counterterms required by one-loop renormalization. We discuss higher loops in two dimensions and two-loop contributions to the self-energy in four dimensions. Our analysis points toward the absence of any problems related to the UV/IR mixing and thus to renormalizability of the theory. However, we find another potentially troubling phenomenon which is a wild behavior of the two-point amplitude as a function of the noncommutativity matrix $θ$.
description: v2: comments and references added, v3: typos corrected; matches published version
title: Schmorl’s nodes distribution and predictive factors of location. A prospective study
Creators: name: Moustarhfir , Malik
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Neuroradiology spine
subject: Musculoskeletal bone
subject: Bones
subject: MR
subject: Segmentation
subject: Decision analysis
subject: Localisation
subject: Epidemiology
subject: Athletic injuries
subject: Hernia
subject: Musculoskeletal spine

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Schmorl’s nodes (SN) are : *herniations of intervertebral disc *with a variable size measuring more than 2 mm (1) into the adjacent trabecular bone endplate of the vertebra (2,3) *fortuitous discovered in 38% to 76 % of spine imaging modalities...
Properties of Robinson--Trautman solution with scalar hair
Creators: name: Tahamtan, T.
name: Svitek, O.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences
subject: 83C15, 83C57, 83C75, 83C20

description: An explicit Robinson--Trautman solution with minimally coupled free scalar field was derived and analyzed recently. It was shown that this solution possesses a curvature singularity which is initially naked but later enveloped by a horizon. However, this study concentrated on the general branch of the solution where all free constants are nonzero. Interesting special cases arise when some of the parameters are set to zero. In most of these cases the scalar field is still present. One of the cases is a static solution which represents a parametric limit of the Janis--Newman--Winicour scalar field spacetime. Additionally, we provide a calculation of the Bondi mass which clarifies the interpretation of the general solution. Finally, by a complex rotation of a parameter describing the strength of the scalar field we obtain a dynamical wormhole solution.
description: 2 figures
title: Erosive hand osteoarthritis: MRI and US imaging features and comparison with nodal osteoarthritis
Creators: name: Vlychou, Marianna
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2012
Subjects: subject: Musculoskeletal joint
subject: Musculoskeletal system
subject: Ultrasound-Colour Doppler
subject: MR
subject: Screening
subject: Diagnostic procedure
subject: Arthritides

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Erosive osteoarthritis (EOA) is defined by the presence of joint erosions on plain radiographs although erosions are not uncommon in nodal osteoarthritis (NOA). The aim of the present study is to compare the imaging findings of hand EOA and NOA by...
Universal One-dimensional Atomic Gases Near Odd-wave Resonance
Creators: name: Cui, Xiaoling
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We show the renormalization of contact interaction for odd-wave scattering in one-dimension(1D). Based on the renormalized interaction, we exactly solve the two-body problem in a harmonic trap, and further explore the universal properties of spin-polarized fermions near odd-wave resonance using the operator product expansion method. It is found that the high-momentum distribution behaves as $C/k^2$, with $C$ the odd-wave contact. Various universal relations are derived. Our work suggests a new universal system emergent in 1D with large odd-wave scattering length.
description: 10 pages, 7 figures
Epipolar Geometry Based On Line Similarity
Creators: name: Ben-Artzi, Gil
name: Halperin, Tavi
name: Werman, Michael
name: Peleg, Shmuel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: It is known that epipolar geometry can be computed from three epipolar line correspondences but this computation is rarely used in practice since there are no simple methods to find corresponding lines. Instead, methods for finding corresponding points are widely used. This paper proposes a similarity measure between lines that indicates whether two lines are corresponding epipolar lines and enables finding epipolar line correspondences as needed for the computation of epipolar geometry. A similarity measure between two lines, suitable for video sequences of a dynamic scene, has been previously described. This paper suggests a stereo matching similarity measure suitable for images. It is based on the quality of stereo matching between the two lines, as corresponding epipolar lines yield a good stereo correspondence. Instead of an exhaustive search over all possible pairs of lines, the search space is substantially reduced when two corresponding point pairs are given. We validate the proposed method using real-world images and compare it to state-of-the-art methods. We found this method to be more accurate by a factor of five compared to the standard method using seven corresponding points and comparable to the 8-points algorithm.
description: ICPR 2016, Cancun, Dec 2016
Looking for chiral anomaly in $K γ\to K π$ reactions
Creators: name: Vysotsky, M. I.
name: Zhemchugov, E. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In an experiment currently being performed at the Institute for High Energy Physics, Serpukhov, Russia, a beam of charged kaons is directed on a copper target. In the electromagnetic field of the target nuclei, two reactions occur: $K^+ γ\to K^+ π^0$ and $K^+ γ\to K^0 π^+$. A peculiar distinction between these two reactions is that there is a chiral anomaly contribution in the former reaction, but not in the latter. This contribution can be directly seen through comparison of the cross sections of these reactions near the threshold. We derive expressions for these cross sections taking into account the anomaly and the contribution of the lightest vector mesons.
description: 15 pages, 8 figures, 1 table; v2: updated for comments received during the review process; v3: figs. 5, 6 were not updated in v2
Simple inhomogeneous cosmological (toy) models
Creators: name: Isidro, Eddy G. Chirinos
name: Vargas, Cristofher Zuñiga
name: Zimdahl, Winfried
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Based on the Lemaître-Tolman-Bondi (LTB) metric we consider two flat inhomogeneous big-bang models. We aim at clarifying, as far as possible analytically, basic features of the dynamics of the simplest inhomogeneous models and to point out the potential usefulness of exact inhomogeneous solutions as generalizations of the homogeneous configurations of the cosmological standard model. We discuss explicitly partial successes but also potential pitfalls of these simplest models. Although primarily seen as toy models, the relevant free parameters are fixed by best-fit values using the Joint Light-curve Analysis (JLA)-sample data. On the basis of a likelihood analysis we find that a local hump with an extension of almost 2 Gpc provides a better description of the observations than a local void for which we obtain a best-fit scale of about 30 Mpc. Future redshift-drift measurements are discussed as a promising tool to discriminate between inhomogeneous configurations and the $Λ$CDM model.
description: 30 pages, 14 figures, comments and references added, accepted for publication in JCAP
Groups acting on spaces of non-positive curvature
Creators: name: Duchesne, Bruno
Publisher: name: arXiv
Year: 2016
Subjects: subject: Differential Geometry (math.DG)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: In this survey article, we present some panorama of groups acting on metric spaces of non-positive curvature. We introduce the main examples and their rigidity properties , we show the links between algebraic or analytic properties of the group and geometric properties of the space. Finally, we conclude with a few conjectures in the subject.
description: Written for the handbook of group actions
Smaller Extended Formulations for the Spanning Tree Polytope of Bounded-genus Graphs
Creators: name: Fiorini, Samuel
name: Huynh, Tony
name: Joret, Gwenaël
name: Pashkovich, Kanstantsin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05Cxx

description: We give an $O(g^{1/2} n^{3/2} + g^{3/2} n^{1/2})$-size extended formulation for the spanning tree polytope of an $n$-vertex graph embedded on a surface of genus $g$, improving on the known $O(n^2 + g n)$-size extended formulations following from Wong and Martin.
description: v3: fixed some typos