cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Can HRCT distinguish between sarcoidosis and pneumoconiosis presenting with hilar/perihilar masses?
Creators: name: Di Nicola, Emanuela
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Occupational / Environmental hazards
subject: Chronic obstructive airways disease
subject: Atelectasis
subject: Diagnostic procedure
subject: Computer Applications-General
subject: Computer Applications-Detection, diagnosis
subject: Image manipulation / Reconstruction
subject: CT-High Resolution
subject: CT
subject: Thorax
subject: Respiratory system
subject: Lung

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Sarcoidosis and pneumoconiosis are two diseases with a different etiology and clinical course. The former is a systemic disorder of unknown cause characterized by the presence of noncaseating granulomas and it may involve almost any organ however...
Mayer, Rainer und Zimmerling, Peter (Hrsg.): Dietrich Bonhoeffer heute
Creators: name: Klement, Herbert
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823830005
description: Jahrbuch für evangelikale Theologie, V. 7 (1993): Jahrbuch für evangelikale Theologie, Band 7
Open Science Education – Training a New Generation of Health Economic Model Developers
Creators: name: Pouwels, Xavier G.L.V.
Publisher: name: Zenodo
Year: 2023

description: This poster was presented during the 18th biennial European Society for Medical Decision Making conference, Berlin, Germany (21-23 May 2023). This poster describes the design, implementation, results and evaluation of the "Towards Open Science within Healthcare Technology and Management Education" project.
description: Funded by the Nederlandse Regieorgaan Onderwijsonderzoek (NRO), Comenius Teaching Fellowship (grant number 40.5.22865.056)
Minkowski valuations on lattice polytopes
Creators: name: Boroczky, Karoly J.
name: Ludwig, Monika
Publisher: name: arXiv
Year: 2016
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: A complete classification is established of Minkowski valuations on lattice polytopes that intertwine the special linear group over the integers and are translation invariant. In the contravariant case, the only such valuations are multiples of projection bodies. In the equivariant case, the only such valuations are generalized difference bodies combined with multiples of the newly defined discrete Steiner point.
description: accepted in JEMS, 2016
title: 64-detector row CT split-bolus techniques: body applications
Creators: name: Valloncelli, Carla
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Oncology
subject: Urinary Tract / Bladder
subject: Arteries / Aorta
subject: CT
subject: Contrast agent-intravenous
subject: Technical aspects
subject: Staging
subject: Embolism / Thrombosis
subject: Neoplasia
subject: Aneurysms

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: CT is currently the method of choice for evaluation of oncologic patients, vascular emergencies, and urinary tract diseases. Multidetector-row CT allows shorter acquisition times, greater coverage, and high image resolution (1, 2) . Conversely, in...
title: Crossroads: history of the corpus callosum.
Creators: name: Blay Beltran, Jordi
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: MR
subject: CT
subject: Neuroradiology brain
subject: Education and training
subject: Anatomy
subject: Education
subject: Pathology

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To describe the histopathological characteristics of the corpus callosum that may determine the type of pathology that can affect it. To review the lesions that may affect the corpus callosum and classify them according to etiology and illustrate...
The FMOS-COSMOS survey of star-forming galaxies at z~1.6. IV: Excitation state and chemical enrichment of the interstellar medium
Creators: name: Kashino, D.
name: Silverman, J. D.
name: Sanders, D.
name: Kartaltepe, J. S.
name: Daddi, E.
name: Renzini, A.
name: Valentino, F.
name: Rodighiero, G.
name: Juneau, S.
name: Kewley, L. J.
name: Zahid, H. J.
name: Arimoto, N.
name: Nagao, T.
name: Chu, J.
name: Sugiyama, N.
name: Civano, F.
name: Ilbert, O.
name: Kajisawa, M.
name: Fevre, O. Le
name: Maier, C.
name: Masters, D.
name: Miyaji, T.
name: Onodera, M.
name: Puglisi, A.
name: Taniguchi, Y.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the physical conditions of ionized gas in high-z star-forming galaxies using diagnostic diagrams based on the rest-frame optical emission lines. The sample consists of 701 galaxies with an Ha detection at $1.4\lesssim z\lesssim1.7$, from the FMOS-COSMOS survey, that represent the normal star-forming population over the stellar mass range $10^{9.6} \lesssim M_\ast/M_\odot \lesssim 10^{11.6}$ with those at $M_\ast>10^{11}~M_\odot$ being well sampled. We confirm an offset of the average location of star-forming galaxies in the BPT diagram ([OIII]/Hb vs. [NII]/Ha), primarily towards higher [OIII]/Hb, compared with local galaxies. Based on the [SII] ratio, we measure an electron density ($n_e=220^{+170}_{-130}~\mathrm{cm^{-3}}$), that is higher than that of local galaxies. Based on comparisons to theoretical models, we argue that changes in emission-line ratios, including the offset in the BPT diagram, are caused by a higher ionization parameter both at fixed stellar mass and at fixed metallicity with additional contributions from a higher gas density and possibly a hardening of the ionizing radiation field. Ionization due to AGNs is ruled out as assessed with Chandra. As a consequence, we revisit the mass-metallicity relation using [NII]/Ha and a new calibration including [NII]/[SII] as recently introduced by Dopita et al. Consistent with our previous results, the most massive galaxies ($M_\ast\gtrsim10^{11}~M_\odot$) are fully enriched, while those at lower masses have metallicities lower than local galaxies. Finally, we demonstrate that the stellar masses, metallicities and star formation rates of the FMOS sample are well fit with a physically-motivated model for the chemical evolution of star-forming galaxies.
description: 38 pages; Accepted for publication in ApJ
The $q$-difference Noether problem for complex reflection groups and quantum OGZ algebras
Creators: name: Hartwig, Jonas T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37 (Primary), 16K40, 16S35 (Secondary)

description: For any complex reflection group $G=G(m,p,n)$, we prove that the $G$-invariants of the division ring of fractions of the $n$:th tensor power of the quantum plane is a quantum Weyl field and give explicit parameters for this quantum Weyl field. This shows that the $q$-Difference Noether Problem has a positive solution for such groups, generalizing previous work by Futorny and the author. Moreover, the new result is simultaneously a $q$-deformation of the classical commutative case, and of the Weyl algebra case recently obtained by Eshmatov et al. Secondly, we introduce a new family of algebras called quantum OGZ algebras. They are natural quantizations of the OGZ algebras introduced by Mazorchuk originating in the classical Gelfand-Tsetlin formulas. Special cases of quantum OGZ algebras include the quantized enveloping algebra of $\mathfrak{gl}_n$ and quantized Heisenberg algebras. We show that any quantum OGZ algebra can be naturally realized as a Galois ring in the sense of Futorny-Ovsienko, with symmetry group being a direct product of complex reflection groups $G(m,p,r_k)$. Finally, using these results we prove that the quantum OGZ algebras satisfy the quantum Gelfand-Kirillov conjecture by explicitly computing their division ring of fractions.
description: 13 pages. v2: minor corrections
Enhancement of the spin transfer torque efficiency in magnetic STM junctions
Creators: name: Palotás, Krisztián
name: Mándi, Gábor
name: Szunyogh, László
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We introduce a method for a combined calculation of charge and vector spin transport of elastically tunneling electrons in magnetic scanning tunneling microscopy (STM). The method is based on the three-dimensional Wentzel-Kramers-Brillouin (3D-WKB) approach combined with electronic structure calculations using first principles density functional theory. As an application, we analyze the STM contrast inversion of the charge current above the Fe/W(110) surface depending on the bias voltage, tip-sample distance and relative magnetization orientation between the sample and an iron tip. For the spin transfer torque (STT) vector we find that its in-plane component is generally larger than the out-of-plane component, and we identify a longitudinal spin current component, which, however, does not contribute to the torque. Our results suggest that the torque-current relationship in magnetic STM junctions follows the power law rather than a linear function. Consequently, we show that the ratio between the STT and the spin-polarized charge current is not constant, and more importantly, it can be tuned by the bias voltage, tip-sample distance and magnetization rotation. We find that the STT efficiency can be enhanced by about a factor of seven by selecting a proper bias voltage. Thus, we demonstrate the possible enhancement of the STT efficiency in magnetic STM junctions, which can be exploited in technological applications. We discuss our results in view of the indirect measurement of the STT above the Fe/W(110) surface reported by Krause et al. in Phys. Rev. Lett. 107, 186601 (2011).
description: 29 pages manuscript, 6 figures, 1 table, accepted in PRB
The scaling relations and star formation laws of ministarburst complexes
Creators: name: Nguyen-Luong, Quang
name: Nguyen, Hans V. V.
name: Motte, Fredérique
name: Schneider, Nicola
name: Fujii, Michiko
name: Louvet, Fabien
name: Hill, Tracey
name: Sanhueza, Patricio
name: Chibueze, James O.
name: Didelon, Pierre
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The scaling relations and the star formation laws for molecular cloud complexes in the Milky Way is investigated. We compare their masses $M_{\rm gas}$, mass surface densities $Σ_{M_{\rm gas}}$, radii $R$, velocity dispersions $σ$, star formation rates $SFR$, and SFR densities $Σ_{\rm SFR}$ with those of structures ranging from cores, clumps, Giant Molecular Clouds (GMCs), to Molecular Cloud Complexes (MCCs), and to Galaxies, spanning 8 orders of magnitudes in size and 13 orders of magnitudes in mass. MCC are mostly large ($R>50$ pc), massive ($\sim 10^{6}$\,\msun) gravitationally unbound cloud structures. This results in the following universal relations: $σ\sim R^{0.5}$, $M_{\rm gas}\sim R^{2}$, $Σ_{\rm SFR}\sim Σ_{M_{\rm gas}}^{1.5}$, ${SFR}\sim {M_{\rm gas}}^{0.9}$, and ${SFR}\sim σ^{2.7}$. Variations in the slopes and the coefficients of these relations are found at individual scales signifying different physics acting at different scales. Additionally, there are breaks at the MCC scale in the $σ-R$ relation and between the starburst and the normal star-forming objects in the $SFR-M_{\rm gas}$ and $Σ_{\rm SFR}$-$Σ_{\rm M_{\rm gas}}$ relations. We propose to use the Schmidt-Kennicutt diagram to distinguish the starburst from the normal star-forming structures by applying a $Σ_{M_{\rm gas}}$ threshold of $\sim100$\,\msun pc$^{-2}$ and a $Σ_{\rm SFR}$ threshold of 1\,\msun yr$^{-1}$ kpc$^{-2}$. Mini-starburst complexes have enhanced $Σ_{\rm SFR}$ ($>$1\,\msun yr$^{-1}$ kpc$^{-2}$), probably caused by dynamic events such as radiation pressure, colliding flows, or spiral arm gravitational instability. Because of the dynamical evolution, gravitational boundedness does not play a significant role in characterizing the star formation activity of MCCs, especially the mini-starburst complexes.
description: submitted on May 02 2016, accepted to Astrophysical Journal on Oct 09, 2016, comments are welcome
title: Systematic study of the axilla in breast evaluation by mammography, ultrasound and MRI: our experience
Creators: name: Suarez, Maria Victoria
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Lymph nodes
subject: Mammography
subject: Ultrasound
subject: Ultrasound-Power Doppler
subject: Biopsy
subject: Puncture
subject: Diagnostic procedure
subject: Metastases
subject: Inflammation
subject: Leukaemia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To emphasize the utility of axillar evaluation in order to complement routine breast ultrasound exam for detecting morphological changes due to different conditions not only because of metastatic breast Cancer. Its confirmation is done through...
Probing extreme astrophysical accelerators through neutrino anisotropy
Creators: name: Muzio, Marco Stein
name: Globus, Noémie
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the extent to which anisotropies in the ultrahigh energy neutrino sky can probe the distribution of extreme astrophysical accelerators in the universe. In this talk, we discuss the origin of an anisotropic neutrino sky and show how observers can use this anisotropy to measure the evolution of ultrahigh energy neutrino sources - and therefore, the sources of ultrahigh energy cosmic rays - for the very first time.
title: Multidetector CT angiographic evaluation of intralobar pulmonary sequestration with congenital cystic adenomatoid malformation in a patient of tetralogy of Fallot (TOF).
Creators: name: soni, neetu
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiovascular system
subject: Lung
subject: Vascular
subject: CT-Angiography
subject: Computer Applications-Detection, diagnosis
subject: Arteriovenous malformations

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The aim of this poster is to show the role of 64- multidetector computed tomography (MDCT) angiography in the comprehensive evaluation of anatomic variations in pulmonary arterial circulation and other associated lung parenchymal anomalies in...
Exploring hadron-quark phase transition in heavy-ion collisions using particle emission ratios in heavy and light reaction systems
Creators: name: Zhu, Xun
name: Yong, Gao-Chan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Based on the AMPT model, which incorporates both hadronic and quark degrees of freedom, we studied the productions of lambda, kaon, proton, and pion in reaction systems $^{40}$Ca+$^{40}$Ca, $^{48}$Ca+$^{48}$Ca, and $^{197}$Au+$^{197}$Au. It is found that the ratios of identical particle emissions from heavy and light reaction systems, especially the emission ratios of strange particles $Λ^{0}$ or K$^{+}$ in heavy and light reaction systems, are highly sensitive to the hadron-quark phase transition in heavy-ion collisions. Detailed explanations and validations of these results are given.
description: 5 pages, 5 figures, accepted by PLB
title: Imaging findings of biliary hamartomas
Creators: name: Leo, Nicola
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cysts
subject: Education
subject: Ultrasound
subject: MR
subject: CT
subject: Biliary Tract / Gallbladder

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: We have retrospectively analyzed the imaging findings of VMCs on ultrasonography (US), computed tomography (CT), magnetic resonance imaging (MRI), MR cholangiopancreatography (MRCP) in four patients, and discuss the different diagnosis with other...
One-dimensional Schrödinger equation with non-analytic potential $V(x)= -g^2\exp (-|x|)$ and its exact Bessel-function solvability
Creators: name: Sasaki, Ryu
name: Znojil, Miloslav
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Classical Analysis and ODEs (math.CA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Exact solvability (ES) of one-dimensional quantum potentials $V(x)$ is a vague concept. We propose that beyond its most conventional range the ES status should be attributed also to many less common interaction models for which the wave functions remain piecewise proportional to special functions. The claim is supported by constructive analysis of a toy model $V(x)= -g^2\exp (-|x|)$. The detailed description of the related bound-state and scattering solutions of Schrödinger equation is provided in terms of Bessel functions which are properly matched in the origin.
description: LaTeX2e with ams math, amssymb, epsfig, revised and published version 17 pages, 1 figure, 3 references added
title: The Medial Longitudinal Fasciculus in Multiple Sclerosis
Creators: name: Ryan, Jonathan
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Inflammation
subject: Imaging sequences
subject: MR
subject: Neuroradiology brain

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: 1) To review the conventional MRI findings that occur as a result of multiple sclerosis (MS). 2) To evaluate the MRI imaging which results in the ocular clinical manifestation of internuclear ophthalmoplegia...
Developments in Marketing Spreads for Agricultural Products in 1963
Creators: name: Marketing Economics Division, Economic Research Service
name: Marketing Economics Division, Economic Research Service
Publisher: name: Unknown
Year: 1964
Subjects: subject: Demand and Price Analysis
subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business

description: Report Highlights: The spread between farm and retail prices of food products in the market basket of farm foods continued to widen in 1963. The increase of 4 percent last year was the largest since 1958 and double the average annual increase in 1953-62. Retail prices of farm-originated food products averaged only 1 percent higher in 1963 than in 1962. Thus, the larger part of the increase in the farm-retail spread in 1963 resulted in lower prices to farmers. Farmers received an average of 37 cents of each dollar consumers spent for farm-originated food products in retail stores last year, 1 cent less than in 1962. This was the smallest farmer's share since 1934, when it was 34 cents. Beef, processed orange products, and bread accounted for about three-fourths of the increase in the market basket farm-retail spread in 1963, although the spread for many other products also widened. Much of the increase in the market-basket spread came in the first quarter, when prices farmers received for beef cattle dropped much more than retail prices of beef. Consumers spent more per person last year for food than in 1962, but the proportion of their total income spent for food continued to decline. Retail prices of 25 items of cotton clothing and household furnishings averaged slightly higher in 1963. The farm-retail spread also increased modestly, as the farm value of the cotton used in these articles decreased slightly. Average prices and spreads for cotton products have varied within a relatively narrow range in recent years and have shown no marked uptrend. Retail prices of cigarettes continued a long-term uptrend. Total expenditures for cigarettes more than doubled from $3.0 billion in 1947 to $6.8 billion in 1962 (latest available data). However, the farmer's share of these expenditures has declined to less than 10 percent as total returns to farmers for tobacco used in cigarettes increased only from $418 million in 1947 to $672 million in 1962. Federal, State, and local excise taxes made up about 45 percent of the total expenditure for cigarettes in 1962, a slightly smaller proportion than in 1947.
description: Reprinted from Hearings Before the Subcommittee of the Committee on Appropriations, United States Senate, Eighty-Eighth Congress, Second Session
Ab-Initio Approach to Many-Body Quantum Spin Dynamics
Creators: name: Dubey, Aditya
name: Zeybek, Zeki
name: Köhler, Fabian
name: Mukherjee, Rick
name: Schmelcher, Peter
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: A fundamental longstanding problem in studying spin models is the efficient and accurate numerical simulation of the long-time behavior of larger systems. The exponential growth of the Hilbert space and the entanglement accumulation at long times pose major challenges for current methods. To address these issues, we employ the multilayer multiconfiguration time-dependent Hartree (ML-MCTDH) framework to simulate the many-body spin dynamics of the Heisenberg model in various settings, including the Ising and XYZ limits with different interaction ranges and random couplings. Benchmarks with analytical and exact numerical approaches show that ML-MCTDH accurately captures the time evolution of one- and two-body observables in both one- and two-dimensional lattices. A comparison with the discrete truncated Wigner approximation (DTWA) highlights that ML-MCTDH is particularly well-suited for handling anisotropic models and provides more reliable results for two-point observables across all tested cases. The behavior of the corresponding entanglement dynamics is analyzed to reveal the complexity of the quantum states. Our findings indicate that the rate of entanglement growth strongly depends on the interaction range and the presence of disorder. This particular relationship is then used to examine the convergence behavior of ML-MCTDH. Our results indicate that the multilayer structure of ML-MCTDH is a promising numerical framework for handling the dynamics of generic many-body spin systems.
description: 16 pages, 10 figures
Covert Quantum Communication
Creators: name: Arrazola, Juan Miguel
name: Scarani, Valerio
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We extend covert communication to the quantum regime by showing that covert quantum communication is possible over optical channels with noise arising either from the environment or from the sender's lab. In particular, we show that sequences of qubits can be transmitted covertly by using both a single photon and a coherent state encoding. We study the possibility of performing covert quantum key distribution and show that positive key rates and covertness can be achieved simultaneously. Covert communication requires a secret key between sender and receiver, which raises the problem of how this key can be regenerated covertly. We show that covert QKD consumes more key than it can generate and propose instead a hybrid protocol for covert key regeneration that uses pseudorandom number generators (PRNGs) together with covert QKD to regenerate secret keys. The security of the new key is guaranteed by QKD while the security of the covert communication is at least as strong as the security of the PRNG.
description: 5 pages, 2 figures
Venard, Marc (Hrsg.): Die Zeit der Konfessionen (1530-1620/30) ...
Creators: name: Padberg, Lutz Von
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1823827640
description: Jahrbuch für evangelikale Theologie, V. 7 (1993): Jahrbuch für evangelikale Theologie, Band 7
Three alternative model-building strategies using quasi-Hermitian time-dependent observables
Creators: name: Znojil, Miloslav
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A $(K+1)-$plet of non-Hermitian and time-dependent operators (say, $Λ_j(t)$, $j=0,1,\ldots,K$) can be interpreted as the set of observables characterizing a unitary quantum system. What is required is the existence of a self-adjoint and, in general, time-dependent operator (say, $Θ(t)$ called inner product metric) making the operators quasi-Hermitian, $Λ_j^\dagger(t)Θ(t)=Θ(t)Λ_j(t)$. The theory (called non-Hermitian interaction-picture, NIP) requires a separate description of the evolution of the states $ψ(t)$ (realized, via Schrödinger-type equation, by a generator, say, $G(t)$) and of the observables themselves (a different generator (say, $Σ(t)(t)$) occurs in the related non-Hermitian Heisenberg-type equation). Every $Λ_j(t)$ (and, in particular, Hamiltonian $H(t)=Λ_0(t)$) appears isospectral to its hypothetical isospectral and self-adjoint (but, by assumption, prohibitively user-unfriendly) avatar $λ_j(t)=Ω(t)Λ_j(t)Ω^{-1}(t)$ with $Ω^\dagger(t)Ω(t)=Θ(t)$. In our paper the key role played by identity $H(t)=G(t)+Σ(t)$ is shown to imply that there exist just three alternative meaningful implementations of the NIP approach, viz., ``number one'' (a ``dynamical'' strategy based on the knowledge of $H(t)$), ``number two'' (a ``kinematical'' one, based on the Coriolis force $Σ(t)$) and ``number three'' (in the literature, such a construction based on $G(t)$ is most popular but, paradoxically, it is also most complicated).
description: 18 pp
title: Single-dose non-subtracted peripheral MRA using multi-point Dixon fat-saturation: feasibility and initial experience
Creators: name: Leiner, Tim
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiovascular system
subject: Arteries / Aorta
subject: MR-Angiography
subject: Diagnostic procedure
subject: Technical aspects
subject: Imaging sequences
subject: Arteriosclerosis

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: First-pass contrast-enhanced magnetic resonance angiography (CE-MRA) of the peripheral vascular tree is typically performed by imaging 3-4 consecutive fields of view (FOV) during first arterial passage of a double dose of contrast material (0.2...
Primordial fluctuations from inflation in dRGT bimetric theory of gravity
Creators: name: Sakakihara, Yuki
name: Tanaka, Takahiro
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate primordial gravitational waves and curvature perturbations in de Rham-Gabadadze-Tolley (dRGT) bimetric gravity. We evaluate the power-spectra in the leading order in slow roll. Taking into account the decay of massive graviton, we find that the action up to the second order reduces to the Einstein theory with a non-minimally coupled scalar field, which is simplified to a minimally coupled model by conformal transformation. We also find that the tensor to scalar ratio for large field inflation with power law potential is larger than the general relativity counterpart for any choice of parameters in dRGT bimetric gravity. In addition, we confirm that the usual consistency relation holds and we have a steeper spectrum for gravitational waves.
description: 20 pages, 1 figure, minor changes to follow the published version
Periodic Table for Floquet Topological Insulators
Creators: name: Roy, Rahul
name: Harper, Fenner
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Dynamical phases with novel topological properties are known to arise in driven systems of free fermions. In this paper, we obtain a `periodic table' to describe the phases of such time-dependent systems, generalizing the periodic table for static topological insulators. Using K-theory, we systematically classify Floquet topological insulators from the ten Altland-Zirnbauer symmetry classes across all dimensions. We find that the static classification scheme described by a group $G$ becomes $G\times G$ in the time-dependent case, and interpret the two factors as arising from the bipartite decomposition of the unitary time-evolution operator. Topologically protected edge modes may arise at the boundary between two Floquet systems, and we provide a mapping between the number of such edge modes and the topological invariant of the bulk.
description: 16 pages, 2 tables, 2 figures; v2 includes minor changes/corrections and an improved Appendix E
On lower bounds of the density of planar periodic sets without unit distances
Creators: name: Tolmachev, Alexander
Publisher: name: arXiv
Year: 2024
Subjects: subject: Metric Geometry (math.MG)
subject: Machine Learning (cs.LG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: G.2.1; G.2.2
subject: 52C15 (Primary) 52C17, 52C10 (Secondary)

description: Determining the maximal density $m_1(\mathbb{R}^2)$ of planar sets without unit distances is a fundamental problem in combinatorial geometry. This paper investigates lower bounds for this quantity. We introduce a novel approach to estimating $m_1(\mathbb{R}^2)$ by reformulating the problem as a Maximal Independent Set (MIS) problem on graphs constructed from flat torus, focusing on periodic sets with respect to two non-collinear vectors. Our experimental results, supported by theoretical justifications of proposed method, demonstrate that for a sufficiently wide range of parameters this approach does not improve the known lower bound $0.22936 \le m_1(\mathbb{R}^2)$. The best discrete sets found are approximations of Croft's construction. In addition, several open source software packages for MIS problem are compared on this task.
description: 21 pages, 9 figures; typos corrected
title: Bone marrow: normal and pathologic aspects in MRI
Creators: name: Turki, Mohamed Wafik
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Education and training
subject: Bones
subject: Oncology
subject: MR
subject: Decision analysis
subject: Diagnostic procedure
subject: Normal variants
subject: Haematologic diseases
subject: Ischaemia / Infarction
subject: Metastases

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: MRI is the imaging modality of choice for the investigation of bone marrow disorders. Accurate interpretation of MR examinations of bone marrow requires an understanding of the anatomy, hysiology, distribution, and conversion patterns of bone...
More Lepton Flavor Violating Observables for LHCb's Run 2
Creators: name: Guadagnoli, Diego
name: Melikhov, Dmitri
name: Reboud, Meril
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The R_K measurement by LHCb suggests non-standard lepton non-universality (LNU) to occur in b -> s l+ l- transitions, with effects in muons rather than electrons. A number of other measurements of b -> s l+ l- transitions by LHCb and B-factories display disagreement with the SM predictions and, remarkably, these discrepancies are consistent in magnitude and sign with the R_K effect. Non-standard LNU suggests non-standard lepton flavor violation (LFV) as well, for example in B -> K l l' and B_s -> l l'. There are good reasons to expect that the new effects may be larger for generations closer to the third one. In this case, the B_s -> mu e decay may be the most difficult to reach experimentally. We propose and study in detail the radiative counterpart of this decay, namely B_s -> mu e gamma, whereby the chiral-suppression factor is replaced by a factor of order alpha/pi. A measurement of this mode would be sensitive to the same physics as the purely leptonic LFV decay and, depending on experimental efficiencies, it may be more accessible. A realistic expectation is a factor of two improvement in statistics for either of the B_{d,s} modes.
description: 14 pages, 2 figures. v4: some typos corrected. Such corrections are not implemented in the journal version
Developments in Marketing Spreads for Agricultural Products in 1964
Creators: name: Economic Research Service
name: Economic Research Service
Publisher: name: Unknown
Year: 1965
Subjects: subject: Demand and Price Analysis
subject: Labor and Human Capital
subject: Marketing
subject: FOS: Economics and business

description: Report Highlights: The spread between the retail cost and farm value of foods in the market basket of farm-originated foods increased less than 0.5 percent last year. This was the smallest annual rise since 1960. The small increase in 1964 reflected stability in prices of goods (not including raw materials) and services used by marketing firms. Retail prices of farm foods averaged less than 0.5 percent higher in 1964 than the year before. This was the smallest annual gain since 1959, the last year retail prices decreased. Prices farmers received for food products last year averaged about the same as in 1963. Also, their share of the retail food dollar, at 37 cents, stayed the same. Consumers spent 18.5 percent of their disposable income for food last year, compared with 18.9 percent in 1963, although per capita expenditures for food kept rising. The proportion of disposable income spent for food has declined in all but 2 years since 1947, when it was 26.9 percent. The spread between retail prices and farm values of Choice beef increased to a record annual average of 35.4 cents per retail pound in 1964, 1.0 cent more than the average for 1963. Retail prices of Choice beef averaged 77.8 cents per pound last year, 3.2 cents lower than in 1963. The farm value averaged 42.4 cents, down 4.2 cents from the 1963 average. These changes accompanied an increase of 12 percent in beef production. Retail prices of cotton clothing and house furnishings averaged about the same in 1964 as the year before, but prices farmers received for lint cotton used in making these goods declined 1 cent per pound. The marketing spread was 1 cent larger in 1964, excluding the Federal equalization payment of 6.5 cents to domestic users of eligible raw U.S. cotton. Consumer expenditures for cigarettes increased in 1963 (the latest data available) as a result of increased consumption and a rise in retail prices. However, returns to farmers from the tobacco in these cigarettes declined slightly because of lower prices for leaf tobacco.
description: Reprinted from Hearings Before the Subcommittee of the Committee on Appropriations, United States Senate, Eighty-Ninth Congress, First Session
$K_{0}^{\ast}(800)$ as a companion pole of $K_{0}^{\ast}(1430)$
Creators: name: Wolkanowski, Thomas
name: Soltysiak, Milena
name: Giacosa, Francesco
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the light scalar sector up to $1.8$ GeV by using a quantum field theoretical approach which includes a single kaonic state in a Lagrangian with both derivative and non-derivative interactions. By performing a fit to $πK$ phase shift data in the $I=1/2,$ $J=0$ channel, we show that $K_{0}^{\ast}(800)$ (or $κ$) emerges as a dynamically generated companion pole of $K_{0}^{\ast }(1430)$. This is a result of investigating quantum fluctuations with one kaon and one pion circulating in the loops dressing $K_{0}^{\ast}(1430)$. We determine the position of the poles on the complex plane in the context of our approach: for $K_{0}^{\ast}(1430)$ we get $(1.413\pm0.002)-i{0.02cm}(0.127\pm0.003)$ (in GeV), while for $κ$ we get $(0.746\pm0.019)-i{0.02cm}(0.262\pm0.014)$ (in GeV). The model-dependence of these results and related uncertainties are discussed in the paper. A large-$N_{c}$ study confirms that $K_{0}^{\ast}(1430)$ is predominantly a quarkonium and that $K_{0}^{\ast}(800)$ is a molecular-like dynamically generated state.
description: 7 pages, 5 figures, 2 tables
Grasp Transfer based on Self-Aligning Implicit Representations of Local Surfaces
Creators: name: Tekden, Ahmet
name: Deisenroth, Marc Peter
name: Bekiroglu, Yasemin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Objects we interact with and manipulate often share similar parts, such as handles, that allow us to transfer our actions flexibly due to their shared functionality. This work addresses the problem of transferring a grasp experience or a demonstration to a novel object that shares shape similarities with objects the robot has previously encountered. Existing approaches for solving this problem are typically restricted to a specific object category or a parametric shape. Our approach, however, can transfer grasps associated with implicit models of local surfaces shared across object categories. Specifically, we employ a single expert grasp demonstration to learn an implicit local surface representation model from a small dataset of object meshes. At inference time, this model is used to transfer grasps to novel objects by identifying the most geometrically similar surfaces to the one on which the expert grasp is demonstrated. Our model is trained entirely in simulation and is evaluated on simulated and real-world objects that are not seen during training. Evaluations indicate that grasp transfer to unseen object categories using this approach can be successfully performed both in simulation and real-world experiments. The simulation results also show that the proposed approach leads to better spatial precision and grasp accuracy compared to a baseline approach.
description: Accepted by IEEE RAL. 8 pages, 6 figures, 3 tables
Collision strengths and transition probabilities for Co III forbidden lines
Creators: name: Storey, P. J.
name: Sochi, Taha
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: In this paper we compute the collision strengths and their thermally-averaged Maxwellian values for electron transitions between the fifteen lowest levels of doubly-ionised cobalt, Co^{2+}, which give rise to forbidden emission lines in the visible and infrared region of spectrum. The calculations also include transition probabilities and predicted relative line emissivities. The data are particularly useful for analysing the thermodynamic conditions of supernova ejecta.
description: 9 pages, 2 figures, 11 tables
Zigzag Decodable Fountain Codes
Creators: name: Nozaki, Takayuki
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This paper proposes a fountain coding system which has lower space decoding complexity and lower decoding erasure rate than the Raptor coding systems. The main idea of the proposed fountain code is employing shift and exclusive OR to generate the output packets. This technique is known as the zigzag decodable code, which is efficiently decoded by the zigzag decoder. In other words, we propose a fountain code based on the zigzag decodable code in this paper. Moreover, we analyze the overhead for the received packets, decoding erasure rate, decoding complexity, and asymptotic overhead of the proposed fountain code. As the result, we show that the proposed fountain code outperforms the Raptor codes in terms of the overhead and decoding erasure rate. Simulation results show that the proposed fountain coding system outperforms Raptor coding system in terms of the overhead and the space decoding complexity.
description: 11 pages, 15 figures, submitted to IEICETransactions, Oct. 2016
title: Calcaneal fractures: adapt the radiological report to the needs of surgeons
Creators: name: Turki, Mohamed Wafik
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Trauma
subject: Bones
subject: Musculoskeletal bone
subject: CT
subject: Image manipulation / Reconstruction
subject: Diagnostic procedure
subject: Decision analysis
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: Describe the main contributions of the scanner in calcaneal fractures especially if surgical intervention is required. To present the reference planes and key frames reformatted 2D and 3D for the planning of surgery. To precise the key points to be...
Coherent Nonlinear Optical Response for High-Intensity Excitation
Creators: name: Tripathi, Rishabh
name: Maurya, Krishna K.
name: Kumar, Pradeep
name: De, Bhaskar
name: Singh, Rohan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Calculation of the coherent nonlinear response of a system is essential to correctly interpret results from advanced techniques such as two-dimensional coherent spectroscopy (2DCS). Usually, even for the simplest systems, such calculations are either performed for low-intensity excitations where perturbative methods are valid and/or by assuming a simplified pulse envelope, such as a $δ$-function in time. Here, we use the phase-cycling method for exact calculation of the nonlinear response without making the aforementioned approximations even for high-intensity excitation. We compare the simulation results to several experimental observations to prove the validity of these calculations. The saturation of the photon-echo signal from excitons in a semiconductor quantum well sample is measured. The excitation-intensity dependent measurement shows nonlinear contributions up to twelfth order. Intensity-dependent simulations reproduce this effect without explicitly considering higher-order interactions. Additionally, we present simulation results that replicate previously-reported experiments with high-intensity excitation of semiconductor quantum dots. By accurately reproducing a variety of phenomena such as higher-order contributions, switching of coherent signal, and changes in photon-echo transients, we prove the efficacy of the phase-cycling method to calculate the coherent nonlinear signal for high-intensity excitation. This method would be particularly useful for systems with multiple, well-separated peaks and/or large inhomogeneity.
title: Adults intestinal malrotations: a simple approach to recognize the most frequent types with MDCT
Creators: name: Macrì, Francesco
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Obstruction / Occlusion
subject: Motility
subject: Epidemiology
subject: Observer performance
subject: CT
subject: Small bowel
subject: Colon
subject: Abdomen

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To identify congenital intestinal malrotation, a condition often undiagnosed up to adulthood, and to recognize several types of this anatomical variation. Diagnosis is often missed because of the misconception that this is just a disease of...
Information Flows? A Critique of Transfer Entropies
Creators: name: James, Ryan G.
name: Barnett, Nix
name: Crutchfield, James P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Information Theory (cs.IT)
subject: Statistics Theory (math.ST)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences

description: A central task in analyzing complex dynamics is to determine the loci of information storage and the communication topology of information flows within a system. Over the last decade and a half, diagnostics for the latter have come to be dominated by the transfer entropy. Via straightforward examples, we show that it and a derivative quantity, the causation entropy, do not, in fact, quantify the flow of information. At one and the same time they can overestimate flow or underestimate influence. We isolate why this is the case and propose several avenues to alternate measures for information flow. We also address an auxiliary consequence: The proliferation of networks as a now-common theoretical model for large-scale systems, in concert with the use of transfer-like entropies, has shoehorned dyadic relationships into our structural interpretation of the organization and behavior of complex systems. This interpretation thus fails to include the effects of polyadic dependencies. The net result is that much of the sophisticated organization of complex systems may go undetected.
description: 6 pages, 2 figures; http://csc.ucdavis.edu/~cmg/compmech/pubs/if.htm
Active Hyperspectral Sensor for Mineralogy Mapping and Plastic Waste Sorting
Creators: name: Senna Vieira, Francisco
name: Mekhrengin, Mikhail
name: Kääriäinen, Teemu
name: Rytöluoto, Ilkka
name: Dönsberg, Timo
name: Genoud, Guillaum
Publisher: name: Zenodo
Year: 2021
Subjects: Mineralogy
Plastic sorting
Active hyperspectral sensor

description: Powerpoint presentation related to a poster at ICNIRS2021, Beijing, China.
Predicting rigidity and connectivity percolation in disordered particulate networks using graph neural networks
Creators: name: Head, D. A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Graph neural networks can accurately predict the chemical properties of many molecular systems, but their suitability for large, macromolecular assemblies such as gels is unknown. Here, graph neural networks were trained and optimised for two large-scale classification problems: the rigidity of a molecular network, and the connectivity percolation status which is non-trivial to determine for systems with periodic boundaries. Models trained on lattice systems were found to achieve accuracies >95% for rigidity classification, with slightly lower scores for connectivity percolation due to the inherent class imbalance in the data. Dynamically generated off-lattice networks achieved consistently lower accuracies overall due to the correlated nature of the network geometry that was absent in the lattices. An open source tool is provided allowing usage of the highest-scoring trained models, and directions for future improved tools to surmount the challenges limiting accuracy in certain situations are discussed.
description: 8 pages, 5 figure files plus a supplementary material PDF. Revised as per reviewers' comments. To appear in Phys. Rev. E
title: "Accuracy of Extended-FAST in detection of politrauma's pneumothorax comparing with MSCT".
Creators: name: Ianniello, Stefania
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Thorax
subject: Ultrasound
subject: Diagnostic procedure
subject: Trauma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Aim of our retrospective studywas to evaluate the diagnostic accuracy, sensitivity, specificity of Extended-FAST , i.e.Focused Assessment with Ultrasound for Trauma, extended to evaluate thechest for pneumothorax and hemothorax, during the "Primary...