cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Emergency radiology in full color: radio-surgical correlation in urgent abdominal pathology
Creators: name: Fdez. del Castillo Ascanio, Monica
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Surgery
subject: Complications
subject: Ultrasound
subject: CT
subject: Emergency
subject: Anatomy
subject: Abdomen
subject: Education
subject: Acute
subject: Education and training
subject: Pathology

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To demonstrate the importance of the relationship between emergency surgeons, clinicians and...
Asymptotics of the mean-field Heisenberg model
Creators: name: Kirkpatrick, Kay
name: Meckes, Elizabeth
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider the mean-field classical Heisenberg model and obtain detailed information about the total spin of the system by studying the model on a complete graph and sending the number of vertices to infinity. In particular, we obtain Cramer- and Sanov-type large deviations principles for the total spin and the empirical spin distribution and demonstrate a second-order phase transition in the Gibbs measures. We also study the asymptotics of the total spin throughout the phase transition using Stein's method, proving central limit theorems in the sub- and supercritical phases and a nonnormal limit theorem at the critical temperature.
description: 44 pages
title: Inflammatory Breast Cancer: A Multimodality Approach and Differential Diagnosis
Creators: name: Fernández Taranilla, María Teresa
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Multidisciplinary cancer care
subject: Inflammation
subject: Infection
subject: Staging
subject: Molecular imaging
subject: Biopsy
subject: Ultrasound
subject: MR
subject: Mammography
subject: Oncology
subject: Interventional non-vascular
subject: Breast

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To describe the radiological features of IBC by using a multimodality approach with mammography, ultrasound, magnetic resonance imaging and PET/CT. To understand the pathophysiology of inflammatory breast cancer (IBC) and identify the major...
Weak lensing predictions for coupled dark energy cosmologies at non-linear scales
Creators: name: Beynon, Emma
name: Baldi, Marco
name: Bacon, David J.
name: Koyama, Kazuya
name: Sabiu, Cristiano
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present non-linear weak lensing predictions for coupled dark energy models using the CoDECS simulations. We calculate the shear correlation function and error covariance expected for these models, for forthcoming ground-based (such as DES) and space-based (Euclid) weak lensing surveys. We obtain predictions for the discriminatory power of a ground-based survey similar to DES and a space-based survey such as Euclid in distinguishing between $Λ$CDM and coupled dark energy models; we show that using the non-linear lensing signal we could discriminate between $Λ$CDM and exponential constant coupling models with $β_0\geq0.1$ at $4σ$ confidence level with a DES-like survey, and $β_0\geq0.05$ at $5σ$ confidence level with Euclid. We also demonstrate that estimating the coupled dark energy models' non-linear power spectrum, using the $Λ$CDM Halofit fitting formula, results in biases in the shear correlation function that exceed the survey errors.
description: 9 pages, 5 figures, v2: accepted for publication in MNRAS
ПОНЯТИЕ КАТЕГОРИИ ГРАММАТИЧЕСКОГО РОДА
Creators: name: Djumayeva, Moxira
name: Xudoyqulov, Abdulla
Publisher: name: Zenodo
Year: 2023

description: Учение о грамматических формах и категориях языка тесно связано с языком, речью и словом. Язык – поток непрерывного словесного творчества, вмещенный в определенный контекст коллектива. В языке все взаимообусловлено и взаимосвязано. Контекст языкового целого служит смысловым фоном для осуществления речи.
title: Real-time Intraoperative Neurosonography: faster, safer and more accurate brain surgery?
Creators: name: Rimeika, Gustas
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Neoplasia
subject: Intraoperative
subject: Ultrasound
subject: Neuroradiology brain

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose of this exhibit is to provide an overview of the clinical application of intraoperative ultrasound (iUS) in intracranial neurosurgery, to review iUS imaging techniques and indications, to discuss advantages and disadvantages and explain...
title: The Space Atom Interferometer project: status and prospects
Creators: name: Sorrentino, F.
name: Bongs, K.
name: Bouyer, P.
name: Cacciapuoti, L.
name: Angelis, M. de
name: Dittus, H.
name: Ertmer, W.
name: Hartwig, J.
name: Hauth, M.
name: Herrmann, S.
name: Huang, K.
name: Inguscio, M.
name: Kajari, E.
name: Könemann, T.
name: Lämmerzahl, C.
name: Landragin, A.
name: Modugno, G.
name: Santos, F. Pereira dos
name: Peters, A.
name: Prevedelli, M.
name: Rasel, E. M.
name: Schleich, W. P.
name: Schmidt, M.
name: Senger, A.
name: Sengstock, K.
name: Stern, G.
name: Tino, G. M.
name: Valenzuela, T.
name: Walser, R.
name: Windpassinger, P.
Publisher: name: IOP Publishing
Year: 2024

description: This paper presents the current status and future prospects of the Space Atom Interferometer project (SAI), funded by the European Space Agency. Atom interferometry provides extremely sensitive and accurate tools for the measurement of inertial forces. Operation of atom interferometers in microgravity is expected to enhance the performance of such sensors. Main goal of SAI is to demonstrate the possibility of placing atom interferometers in space. The resulting drop-tower compatible atom interferometry acceleration sensor prototype is described. Expected performance limits and potential scientific applications in a micro-gravity environment are also discussed.
Three-photon electromagnetically induced transparency using Rydberg states
Creators: name: Carr, Christopher
name: Tanasittikosol, Monsit
name: Sargsyan, Armen
name: Sarkisyan, David
name: Adams, Charles S.
name: Weatherill, Kevin J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We demonstrate electromagnetically induced transparency (EIT) in a four-level cascade system where the upper level is a Rydberg state. The observed spectral features are sub-Doppler and can be enhanced due to the compensation of Doppler shifts with AC Stark shifts. A theoretical description of the system is developed which agrees well with the experimental results and an expression for the optimum parameters is derived.
description: 3 pages, 4 figures
Crossing Statistic: Bayesian interpretation, model selection and resolving dark energy parametrization problem
Creators: name: Shafieloo, Arman
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: By introducing Crossing functions and hyper-parameters I show that the Bayesian interpretation of the Crossing Statistics [1] can be used trivially for the purpose of model selection among cosmological models. In this approach to falsify a cosmological model there is no need to compare it with other models or assume any particular form of parametrization for the cosmological quantities like luminosity distance, Hubble parameter or equation of state of dark energy. Instead, hyper-parameters of Crossing functions perform as discriminators between correct and wrong models. Using this approach one can falsify any assumed cosmological model without putting priors on the underlying actual model of the universe and its parameters, hence the issue of dark energy parametrization is resolved. It will be also shown that the sensitivity of the method to the intrinsic dispersion of the data is small that is another important characteristic of the method in testing cosmological models dealing with data with high uncertainties.
description: 14 pages, 4 figures, discussions extended, 1 figure and two references added, main results unchanged, matches the final version to be published in JCAP
title: Acute appendicitis - review of diagnostic imaging in our institution
Creators: name: Sousa, Pedro
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Infection
subject: Acute
subject: Diagnostic procedure
subject: Audit and standards
subject: Ultrasound
subject: CT
subject: Emergency
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Acute appendicitis is one of the most frequently suspected acute abdominal conditions in the emergency department and the most common indication for emergency abdominal surgery. Ultrasound (US) is the modality of choice in patients with suspected...
Charge symmetry violation: a NNLO study of partonic observables
Creators: name: Traini, Marco
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Charge and isospin symmetry violations to valence and sea distribution functions in the nucleon are evaluated (at low resolution scale) by means of a meson cloud model and light-cone quark wave functions. Their perturbative evolution are implemented at Next-to-next-to-leading order (NNLO) using an original evolution code in order to include the perturbatively generated strange - anti-strange asymmetry typical of the three loop evolution expansion. Charge symmetry violating QED effects are also added and the distributions, evolved at the experimental scale, are compared with available information. The role of non-perturbative effects is emphasized in the interpretation of the, so called, NuTeV anomaly and new experiments at very-high energy.
description: revtex4, 7 pages, 3 figures; text improved, new comments and references
title: Soft tissues sarcomas
Creators: name: lahlou, anas
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Localisation
subject: Ultrasound
subject: MR
subject: CT
subject: Oncology
subject: Musculoskeletal soft tissue
subject: Extremities
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Describe the radiological aspects of soft-tissue sarcomas Have an extension assessment and post-treatment...
title: Electrochemical coreduction of nitrite and CO₂ in an ionic liquid system
Creators: name: Bornak, Mona
Publisher: name: Memorial University of Newfoundland
Year: 2023

description: Environmental concerns and demand for sustainability drive investigations of electrochemical reduction of CO₂, N₂, and nitrogen pollutants. The simultaneous reduction of CO₂ and nitrite to generate urea tackles multiple issues while producing valuable products. Moreover, incorporating ionic liquids (ILs) improves catalytic performance and selectivity. This study investigates the performance of various catalysts, including cobalt and iron phthalocyanine, as well as Cu, Pd, Ir, MoS₂, TiO₂, and Rh nanoparticles, and graphene nanoplatelets in terms of urea production rates and yields. When a cobalt phthalocyanine catalyst was combined with a mixture of 1-butylpyridinium hexafluorophosphate (BuPyPF₆) and trihexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide (P₆₆₆₁₄NTf₂), the hydrophobic nature of the catalyst layer increased, resulting in higher faradaic efficiency (25% at –0.064 V vs RHE). Combining a commercial carbon-supported Cu catalyst with CoPc proved effective in increasing urea production rates, although it led to a decrease in faradaic efficiency. However, the application of carbon black as the supporting layer proved advantageous when graphene and TiO₂ as the catalyst supports were used. TiO₂, in particular, showed promise as both the catalyst and supporting material, achieving an impressive 71% urea yield when combined with CoPc. Fe (III) tetrasulfophthalocyanine, in conjunction with the mixed IL binder, exhibited a high urea production rate but low yield.
title: Development dysplasia of the hip (DDH) – ultrasonographic and radiographic assessment
Creators: name: Magalhaes, Pedro
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Musculoskeletal joint
subject: Musculoskeletal bone
subject: Paediatric
subject: Ultrasound
subject: Conventional radiography
subject: Diagnostic procedure
subject: Education
subject: Developmental disease
subject: Dysplasias

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this educational poster is to: - Summarize the clinical features of DDH; - Review an ultrasound and radiographic evaluation method for patients with suspected DDH; - Illustrate the sonographic and radiographic findings of...
Massive 3-loop Ladder Diagrams for Quarkonic Local Operator Matrix Elements
Creators: name: Ablinger, Jakob
name: Blümlein, Johannes
name: Hasselhuhn, Alexander
name: Klein, Sebastian
name: Schneider, Carsten
name: Wißbrock, Fabian
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: 3-loop diagrams of the ladder-type, which emerge for local quarkonic twist-2 operator matrix elements, are computed directly for general values of the Mellin variable $N$ using Appell-function representations and applying modern summation technologies provided by the package {\sf Sigma} and the method of hyperlogarithms. In some of the diagrams generalized harmonic sums with $ξ\in \{1,1/2,2\}$ emerge beyond the usual nested harmonic sums. As the asymptotic representation of the corresponding integrals shows, the generalized sums conspire giving well behaved expressions for large values of $N$. These diagrams contribute to the 3-loop heavy flavor Wilson coefficients of the structure functions in deep-inelastic scattering in the region $Q^2 \gg m^2$.
description: 32 pages, 1 style file, 17 figures
The Kolmogorov-Smirnov test for the CMB
Creators: name: Frommert, Mona
name: Durrer, Ruth
name: Michaud, Jérôme
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the statistics of the cosmic microwave background using the Kolmogorov-Smirnov test. We show that, when we correctly de-correlate the data, the partition function of the Kolmogorov stochasticity parameter is compatible with the Kolmogorov distribution and, contrary to previous claims, the CMB data are compatible with Gaussian fluctuations with the correlation function given by standard Lambda-CDM. We then use the Kolmogorov-Smirnov test to derive upper bounds on residual point source power in the CMB, and indicate the promise of this statistics for further datasets, especially Planck, to search for deviations from Gaussianity and for detecting point sources and Galactic foregrounds.
description: Improved significance of the results (which remain unchanged) by using patches instead of ring segments in the analysis. Added sky maps of the Kolmogorov-parameter for original and de-correlated CMB map
title: BI­-RADS 3 – the pebble in radiologist shoe
Creators: name: Kovačević, Darija
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Breast
subject: Mammography
subject: Diagnostic procedure
subject: Education
subject: Screening
subject: Cancer
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: BIRADS 3 category leads to many doubts and disagreements between radiologists and the purpose of this paper is to: clearly define when and why this category is used. BI-RADS 3 can be used in diagnostic mammography but some advise that BI-RADS 3...
Classification Framework and Structure-Activity-Relationship (SAR) of Tetracycline-Structure-Based Drugs
Creators: name: Fuoco, Domenico
Publisher: name: arXiv
Year: 2011
Subjects: subject: Biomolecules (q-bio.BM)
subject: FOS: Biological sciences

description: By studying the literature about Tetracyclines (TCs), it becomes clearly evident that TCs are very dynamic molecules. In some cases, their structure-activity-relationship (SAR) are known, especially against bacteria, while against other targets, they are virtually unknown. In other diverse yields of research, such as neurology, oncology and virology the utility and activity of the tetracyclines are being discovered and are also emerging as new technological fronts. The first aim of this paper is classify the compounds already used in therapy and prepare the schematic structure in which include the next generation of TCs. The aim of this work is introduce a new framework for the classification of old and new TCs, using a medicinal chemistry approach to the structure of that drugs. A fully documented Structure-Activity-Relationship (SAR) is presented with the analysis data of antibacterial and nonantibacterial (antifungal, antiviral and anticancer) tetracyclines. Lipophilicity of functional groups and conformations interchangeably are determining rules in biological activities of TCs.
description: 13 pages, 3 figures, 2 schemes, 1 table; http://www.mdpi.com/2079-6382/1/1/1
A discrete, unitary, causal theory of quantum gravity
Creators: name: Wall, Aron C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A discrete model of Lorentzian quantum gravity is proposed. The theory is completely background free, containing no reference to absolute space, time, or simultaneity. The states at one slice of time are networks in which each vertex is labelled with two arrows, which point along an adjacent edge, or to the vertex itself. The dynamics is specified by a set of unitary replacement rules, which causally propagate the local degrees of freedom. The inner product between any two states is given by a sum over histories. Assuming it converges (or can be Abel resummed), this inner product is proven to be hermitian and fully gauge-degenerate under spacetime diffeomorphisms. At least for states with a finite past, the inner product is also positive. This allows a Hilbert space of physical states to be constructed.
description: 38 pages, 9 figures, v3 added to exposition and references, v4 expanded prospects section
title: Doppler artifacts - causes and how to use them or avoid them
Creators: name: Prodan, Ksenija
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Vascular
subject: Ultrasound-Colour Doppler
subject: Ultrasound-Power Doppler
subject: Ultrasound-Spectral Doppler
subject: Education
subject: Artifacts

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: 1. To describe artifacts encountered in Doppler sonography and explain the physical principles or equipment settings causing them 2.To explain how certain artifacts can assist in diagnosing diseases 3. To systematically list actions and equipment...
Conifold Transitions in M-theory on Calabi-Yau Fourfolds with Background Fluxes
Creators: name: Intriligator, Kenneth
name: Jockers, Hans
name: Mayr, Peter
name: Morrison, David R.
name: Plesser, M. Ronen
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider topology changing transitions for M-theory compactifications on Calabi-Yau fourfolds with background G-flux. The local geometry of the transition is generically a genus g curve of conifold singularities, which engineers a 3d gauge theory with four supercharges, near the intersection of Coulomb and Higgs branches. We identify a set of canonical, minimal flux quanta which solve the local quantization condition on G for a given geometry, including new solutions in which the flux is neither of horizontal nor vertical type. A local analysis of the flux superpotential shows that the potential has flat directions for a subset of these fluxes and the topologically different phases can be dynamically connected. For special geometries and background configurations, the local transitions extend to extremal transitions between global fourfold compactifications with flux. By a circle decompactification the M-theory analysis identifies consistent flux configurations in four-dimensional F-theory compactifications and flat directions in the deformation space of branes with bundles.
description: 93 pages; v2: minor changes and references added
title: Comprehensive anatomical and functional imaging in patients with type I neurofibromatosis using simultaneous FDG-PET/MRI
Creators: name: Reinert, Christian Philipp
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Hybrid Imaging
subject: Oncology
subject: Paediatric
subject: PET-MR
subject: MR
subject: MR-Diffusion/Perfusion
subject: Molecular imaging
subject: Staging
subject: Neoplasia
subject: Cancer

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The purpose of this study was to investigate the clinical use of combined FDG-PET/MRI in patients with NF1 for monitoring enlargement and metabolism of PNFs with regard to malignant transformation, as well as possibility to detect NF1 associated CNS...
Repeated Bursts from Relativistic Scattering of Compact Objects in Galactic Nuclei
Creators: name: Kocsis, Bence
name: Levin, Janna
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Galactic nuclei are densely populated by stellar mass compact objects such as black holes and neutron stars. Bound, highly eccentric binaries form as a result of gravitational wave (GW) losses during close flybys between these objects. We study the evolution of these systems using 2.5 and 3.5 order post-Newtonian equations of motion. The GW signal consists of many thousand repeated bursts (RB) for minutes to days (depending on the impact parameter and masses), followed by a powerful GW chirp and an eccentric merger. We show that a significant signal to noise ratio (SNR) accumulates already in the RB phase, corresponding to a detection limit around 200-300 Mpc and 300--600 Mpc for Advanced LIGO for an average orientation BH/NS or BH/BH binary, respectively. The theoretical errors introduced by the inaccuracy of the PN templates are typically much less severe for the RB phase than in the following eccentric merger. The GW signal in the RB phase is broadband; we show that encounters involving intermediate mass black holes are detectable in multiple frequency bands coincidentally using LIGO and LISA.
description: 16 pages, 10 figures, version accepted for publication in Physical Review D
title: Safety, efficacy, and cost-effectiveness of CT guided lumbar transforaminal epidural steroid injections – A case series.
Creators: name: Kamp, Jozef
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Interventional non-vascular
subject: Musculoskeletal spine
subject: Neuroradiology spine
subject: CT
subject: Radiation safety
subject: Cost-effectiveness
subject: Radiation effects
subject: Outcomes
subject: Economics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Transforaminal epidural steroid injections (TFESI) are a common procedure for patients suffering from lumbar radiculopathy with corresponding foraminal stenosis on MRI imaging. Not only do these injections provide therapeutic benefit for the patient...
Non-minimal Coupling Branes
Creators: name: Liu, Yu-Xiao
name: Chen, Feng-Wei
name: Heng-Guo
name: Zhou, Xiang-Nan
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study a thick and Z_2 symmetric braneworld model with a non-minimally coupled bulk scalar. Several analytic solutions are found. There are two categories of the brane configuration: standard branes and deformed ones. The former is just the same with the solutions in general relativity, whereas the latter has negative effective energy densities in the location of the branes. The question of stability under metric tensor perturbation is also investigated, and there is no tachyon. We show that the gravity zero mode (namely the 4D massless graviton) is the only one state that can be localized on the branes. So Newtonian potential can be recovered in 4D space-time.
description: 20 pages, 6 figures
Quantum Hall Effect in Bernal Stacked and Twisted Bilayer Graphene Grown on Cu by Chemical Vapor Deposition
Creators: name: Fallahazad, Babak
name: Hao, Yufeng
name: Lee, Kayoung
name: Kim, Seyoung
name: Ruoff, R. S.
name: Tutuc, E.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We examine the quantum Hall effect in bilayer graphene grown on Cu substrates by chemical vapor deposition. Spatially resolved Raman spectroscopy suggests a mixture of Bernal (A-B) stacked and rotationally faulted (twisted) domains. Magnetotransport measurements performed on bilayer domains with a wide 2D band reveal quantum Hall states (QHSs) at filling factors $ν=4, 8, 12$ consistent with a Bernal stacked bilayer, while magnetotransport measurements in bilayer domains defined by a narrow 2D band show a superposition of QHSs of two independent monolayers. The analysis of the Shubnikov-de Haas oscillations measured in twisted graphene bilayers provides the carrier density in each layer as a function of the gate bias and the inter-layer capacitance.
description: 5 pages, 4 figures
Quantum Cosmological Perturbations of Generic Fluids in Quantum Universes
Creators: name: Vitenti, S. D. P.
name: Falciano, F. T.
name: Pinto-Neto, N.
Publisher: name: arXiv
Year: 2012
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: In previous works, it was shown that the Lagrangians and Hamiltonians of cosmological linear scalar, vector and tensor perturbations of homogeneous and isotropic space-times with flat spatial sections containing a perfect fluid can be put in a simple form through the implementation of canonical transformations and redefinitions of the lapse function, without ever using the background classical equations of motion. In this paper, we generalize this result to general fluids, which includes entropy perturbations, and to arbitrary spacelike hyper-surfaces through a new method together with the Faddeev-Jackiw procedure for the constraint reduction. A simple second order Hamiltonian involving the Mukhanov-Sasaki variable is obtained, again without ever using the background equations of motion.
description: 19 pages, revtex4-1, submitted to PRD, expanded discussion about our method, fixed typos
title: Correlation between morphological imaging features and HPV status in oropharyngeal squamous cell carcinomas.
Creators: name: Verrone, Giovanni Battista
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cancer
subject: Staging
subject: Education
subject: CT
subject: Oncology
subject: Head and neck

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The Human Papilloma Virus (HPV) is currently responsible for an increasing number of head and neck cancers, regardless of exposure to smoking and drinking [1,2]. The oropharynx is the most affected site because the virus replicates in the...
Quantum corrections for a black hole in an asymptotically safe gravity with higher derivatives
Creators: name: Jamil, Mubasher
name: Darabi, Farhad
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: By using the quantum tunneling approach over semiclassical approximations, we study the quantum corrections to the Hawking temperature, entropy and Bekenstein-Hawking entropy-area relation for a black hole in an asymptotically safe gravity with higher derivatives. The leading and non leading corrections to the area law are obtained.
description: 7 pages, published in IJTP. arXiv admin note: substantial text overlap with arXiv:1102.4938
title: Leichenrede gehalten bei der Beerdigung von Herrn Altbürgermeister Dr. J. J. Burckhardt-Ryhiner
title: in der Engelgasskapelle, Sonntag, den 15. April 1888, Vormittags 11 Uhr
titleType: Subtitle
Creators: name: Zimmermann, O.
Publisher: name: Franz Wittwer
Year: 1888
Subjects: subject: 920 Biografien, Genealogie, Insignien
subject: Nachruf
subject: Burckhardt, Johann Jakob

description: Enthält: Personalien von Johann Jacob Burckhardt.
General solution of classical master equation for reducible gauge theories
Creators: name: Bratchikov, A. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We give the general solution to the classical master equation (S,S)=0 for reducible gauge theories. To this aim, we construct a new coordinate system in the extended configuration space and transform the equation by changing variables. Then it can be solved by an iterative method.
description: 15 pages; v3: refs. added, section 4 substantially improved, a section added; v4: reference and example added
title: Audit of previously assessed cancers identified between April 2011 and March 2017 in London Screening Services
Creators: name: Wilkinson, Louise
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Breast
subject: Mammography
subject: Screening
subject: Education and training

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Systematic audit is a fundamental tool in the UK NHS Breast Screening Programme, promoting reflective thinking and improving outcomes. This poster describes the implementation of a regional audit using cases to illustrate lessons learned. How this...
Relative Frobenius algebras are groupoids
Creators: name: Heunen, Chris
name: Contreras, Ivan
name: Cattaneo, Alberto S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Category Theory (math.CT)
subject: FOS: Mathematics
subject: 18B40, 18D35, 20L05

description: We functorially characterize groupoids as special dagger Frobenius algebras in the category of sets and relations. This is then generalized to a non-unital setting, by establishing an adjunction between H*-algebras in the category of sets and relations, and locally cancellative regular semigroupoids. Finally, we study a universal passage from the former setting to the latter.
description: 15 pages
title: Acute pancreatitis in pediatric age
Creators: name: VIVEROS CASTAÑO, ADY
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pancreas
subject: Paediatric
subject: Emergency
subject: Ultrasound
subject: CT
subject: Complications
subject: Diagnostic procedure
subject: Pathology
subject: Acute

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: After completing this article, readers should be able to: Know the imaging differences between adults and children in acute pancreatitis and to identify the main radiological findings in acute pancreatitis in pediatric age. Know the normal anatomy...
Blind quantum computation protocol in which Alice only makes measurements
Creators: name: Morimae, Tomoyuki
name: Fujii, Keisuke
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Blind quantum computation is a new secure quantum computing protocol which enables Alice who does not have sufficient quantum technology to delegate her quantum computation to Bob who has a fully-fledged quantum computer in such a way that Bob cannot learn anything about Alice's input, output, and algorithm. In previous protocols, Alice needs to have a device which generates quantum states, such as single-photon states. Here we propose another type of blind computing protocol where Alice does only measurements, such as the polarization measurements with a threshold detector. In several experimental setups, such as optical systems, the measurement of a state is much easier than the generation of a single-qubit state. Therefore our protocols ease Alice's burden. Furthermore, the security of our protocol is based on the no-signaling principle, which is more fundamental than quantum physics. Finally, our protocols are device independent in the sense that Alice does not need to trust her measurement device in order to guarantee the security.
description: 9 pages, 3 figures
title: Patient Irradiation and Tissue Reactions in a Quaternary Interventional Cardiology Center: 2007-2017
Creators: name: Balter, Stephen
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Dosimetric comparison
subject: Dosimetry
subject: Angioplasty
subject: Fluoroscopy
subject: Catheter arteriography
subject: Radioprotection / Radiation dose
subject: Cardiac
subject: Radiation physics

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The prevalence of tissue reactions, such as skin burns, from Fluoroscopically Guided Interventional procedures (FGI) is poorly known. To provide a one-point estimate of tissue-reaction frequency and severity, we performed a retrospective analysis of...
Confidence intervals in regression centred on the SCAD estimator
Creators: name: Farchione, Davide
name: Kabaila, Paul
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: Consider a linear regression model. Fan and Li (2001) describe the smoothly clipped absolute deviation (SCAD) point estimator of the regression parameter vector. To gain insight into the properties of this estimator, they consider an orthonormal design matrix and focus on the estimation of a specified component of this vector. They show that the SCAD point estimator has three attractive properties. We answer the question: To what extent can an interval estimator, centred on the SCAD estimator, have similar attractive properties?
description: The exposition has been improved
title: Lymphoepithelial cysts of the pancreas: can common features avoid resection?
Creators: name: Esteban García, Elena
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Cysts
subject: Education
subject: MR
subject: CT
subject: Pancreas
subject: Oncology
subject: Abdomen
subject: Neoplasia

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Lymphoepithelial cysts (LEC) of the pancreas arerarebenign lesions. The imaging appearance is often similar to other pancreatic lesions such as serous cystic neoplasms (SCNs), mucinous cystic neoplasms (MCNs) and intraductal papillary mucinous...
title: Ultrasound assessment of the hepatosplenic involvement in patients with Common Variable Immunodeficiency
Creators: name: caruso, martina
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Outcomes
subject: Cirrhosis
subject: Statistics
subject: FOS: Mathematics
subject: Observer performance
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Spleen
subject: Liver
subject: Abdomen

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of our study was to assess the evolution of hepatosplenic involvement during medium and long-term follow-up in patients with Common Variable Immunodeficiency (CVID) by annual abdominal ultrasound...
title: Two-steps CT for the early diagnosis of pulmonary invasive mould disease in febrile neutropenic onco-haematological patients.
Creators: name: Cosi, Veronica
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Haematologic
subject: Thorax
subject: CT
subject: CT-Angiography
subject: Education
subject: eLearning
subject: Haematologic diseases
subject: Infection
subject: Lymphoma

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: To illustrate the management of febrile neutropenic onco-haematologic patients with high risk of pulmonary Invasive Mould Disease (IMD) with a 2-steps CT protocol: -step 1: chest low-dose high-resolution computed tomography (LDCT) for screening and...
title: Do we skip any important changes in the pelvis MRI focusing on the assessment of the prostate gland according to PIRADS v2 classification?
Creators: name: Kozak, Oliwia
Publisher: name: European Congress of Radiology
Year: 2019
Subjects: subject: Pelvis
subject: MR
subject: Observer performance
subject: Pelvic floor dysfunction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: Paying attention to different changes in the pelvis during the assessment of prostate...
Moore-Penrose inverse of Gram operator on Hilbert C*-modules
Creators: name: Moslehian, M. S.
name: Sharifi, K.
name: Forough, M.
name: Chakoshi, M.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L08, 47A05, 46L05

description: Let $t$ be a regular operator between Hilbert $C^*$-modules and $t^†$ be its Moore-Penrose inverse. We investigate the Moore-Penrose invertibility of the Gram operator $t^*t$. More precisely, we study some conditions ensuring that $t^† = (t^* t)^† t^*= t^* (t t^*)^†$ and $(t^*t)^†=t^†t^{* †}$ hold. As an application, we get some results for densely defined closed operators on Hilbert $C^*$-modules over $C^*$-algebras of compact operators.
description: Improved and new results, 10 pages, to appear in Studia Math
Witnessing nonclassical multipartite states
Creators: name: Saguia, A.
name: Rulli, C. C.
name: de Oliveira, Thiago R.
name: Sarandy, M. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate a witness for nonclassical multipartite states based on their disturbance under local measurements. The witness operator provides a sufficient condition for nonclassicality that coincides with a nonvanishing global quantum discord, but it does not demand an extremization procedure. Moreover, for the case of Z_2-symmetric systems, we rewrite the witness in terms of correlation functions so that classicality is found to necessarily require either vanishing magnetization in the invariant axis or isotropy of the two-point function in the transverse spin plane. We illustrate our results in quantum spin chains, where a characterization of factorized ground states (with spontaneously broken Z_2 symmetry) is achieved. As a by-product, the witness will also be shown to indicate a second-order quantum phase transitions, which will be illustrated both for the XY and Ashkin-Teller spin chains.
description: V2: 6 pages, 4 figures. Published version
PC Cost and Businesses Size
Creators: name: Reyes, Lualhati
Publisher: name: Zenodo
Year: 2002

description: This researches will survey whether big business or the small business have more expensive use of PC’s. Many businesses want to know about the cost of PC’s for the use across the business. This researches will look to find the connections between the size of the businesses (small or large) and the cost of the PC’s. The researches find that the PC’s cost increase with businesses revenue and size.
title: Henri Basnage de Bauval
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Henri Basnage de Bauval as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Field dependence of the Eu2+ spin relaxation in EuFe(2-x)CoxAs2
Creators: name: Garcia, F. A.
name: Leithe-Jasper, A.
name: Schnelle, W.
name: Nicklas, M.
name: Rosner, H.
name: Sichelschmidt, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The layered compound EuFe2As2 is an interesting model system to investigate the effects of well defined local Eu2+ 4f states on the itinerant electronic and magnetic properties of the FeAs layers. To address this subject, we investigated the series EuFe2-xCoxAs2 (0.1 <= x <=0.75) by electron spin resonance (ESR) of Eu2+ to probe the spin dynamics of the itinerant subsystem. We relate the results to dc-susceptibility measurements and band structure calculations. As a consequence of the weak coupling between the local and itinerant subsystems we found that the spin relaxation is well understood in terms of the exchange coupling among the local Eu2+ spins. A pronounced field dependence of the Eu2+ spin relaxation demonstrates the direct influence of magnetic fluctuations at the Fe2-xCoxAs2 layers.
description: 13 pages, 5 figures
title: Georges Louis de Battincour
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Georges Louis de Battincour as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Sebastiano Battistini
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Sebastiano Battistini as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
title: Charles César Baudelot de Dairval
title: An entry in the LCA Online Dictionary of Leibniz’s Correspondents and Acquaintances
titleType: Subtitle
Creators: name: (:Tba)
Publisher: name: LCA Project
Year: 2018

description: Charles César Baudelot de Dairval as a personal relation of Leibniz’s: The resource presents biographical information on a correspondent of Leibniz's
Modeling Flux Noise in SQUIDs Due to Hyperfine Interactions
Creators: name: Wu, Jiansheng
name: Yu, Clare C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Recent experiments implicate spins on the surface of metals as the source of flux noise in SQUIDs, and indicate that these spins are able to relax without conserving total magnetization. We present a model of $1/f$ flux noise in which electron spins on the surface of metals can relax via hyperfine interactions. Our results indicate that flux noise would be significantly reduced in superconducting materials where the most abundant isotopes do not have nuclear moments such as zinc and lead.
description: 4+ pages, no figures
General Form of Color Charge of the Quark
Creators: name: Nayak, Gouranga C.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In Maxwell theory the constant electric charge e of the electron is consistent with the continuity equation $\partial_μj^μ(x)=0$ where $j^μ(x)$ is the current density of the electron where the repeated indices $μ=0,1,2,3$ are summed. However, in Yang-Mills theory the Yang-Mills color current density $j^{μa}(x)$ of the quark satisfies the equation $D_μ[A]j^{μa}(x)=0$ which is not a continuity equation ($\partial_μj^{μa}(x)\neq 0$) which implies that the color charge of the quark is not constant where a=1,2,...,8 are the color indices. Since the charge of a point particle is obtained from the zero ($μ=0$) component of a corresponding current density by integrating over the entire (physically) allowed volume, the color charge $q^a(t)$ of the quark in Yang-Mills theory is time dependent. In this paper we derive the general form of eight time dependent fundamental color charges $q^a(t)$ of the quark in Yang-Mills theory in SU(3) where a=1,2,...,8.
description: 52 pages latex, final version, accepted for publication in Eur. Phys. J. C. arXiv admin note: substantial text overlap with arXiv:1201.2666
SU(3) breaking corrections to the $D$, $D^*$, $B$, and $B^*$ decay constants
Creators: name: Altenbuchinger, M.
name: Geng, L. S.
name: Weise, W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report on a first next-to-next-to-leading order calculation of the decay constants of the $D$ ($D^*$) and $B$ ($B^*$) mesons using a covariant formulation of chiral perturbation theory. It is shown that, using the state-of-the-art lattice QCD results on $f_{D_s}/f_D$ as input, one can predict quantitatively the ratios of $f_{D_s^*}/f_{D^*}$, $f_{B_s}/f_B$, and $f_{B^*_s}/f_{B^*}$ taking into account heavy-quark spin-flavor symmetry breaking effects on the relevant low-energy constants. The predicted relations between these ratios, $f_{D^*_s}/f_{D^*}f_{D_s}/f_D$, and their light-quark mass dependence should be testable in future lattice QCD simulations, providing a stringent test of our understanding of heavy quark spin-flavor symmetry, chiral symmetry and their breaking patterns.
description: 11 pages, 2 figures, 2 tables; typos corrected, clarifications added, results remaining unchanged