cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Oscillating scalar field as dark matter through the cosmological epochs
Creators: name: Popov, Vladimir A.
Publisher: name: arXiv
Year: 2025
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An oscillating scalar field can behave like cold dark matter in the expanding Universe. In relativistic cosmology, this perspective is primarily reasoned by an evolution of a background scalar field and its subhorizon perturbations in a matter-dominated era. A corresponding relativistic description is usually based on the ansatz that the perturbations oscillate in the same way as the background field and on time averaging to find the oscillation amplitudes. In contrast, the presented approach makes no initial assumptions about the perturbation behavior and does not use time averages. It is shown that although the previous treatments are valid only well inside the Hubble scale, the scalar field reproduces the CDM scenarios on the superhorizon scale and also throughout the evolution of the Universe from the beginning of the oscillations. The misunderstanding about the Jeans length scale in the matter-dominated epoch is also clarified. An analog of the Jeans effect is found in a radiation-dominated era. It can prevent an overproduction of small halos for the scalars with $m\sim 10^{-13}$~eV.
description: 11 pages, 1 figure
Eibach, U., Haacker, K., Hempelmann, H., Betrifft: Kirche und Homosexualität
Creators: name: Meiß, Klaus
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821247949
description: Jahrbuch für evangelikale Theologie, V. 11 (1997): Jahrbuch für evangelikale Theologie, Band 11
Eibach, U., Liebe, Glück und Partnerschaft
Creators: name: Stoll, Claus-Dieter
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821247930
description: Jahrbuch für evangelikale Theologie, V. 11 (1997): Jahrbuch für evangelikale Theologie, Band 11
Applying a Cut-Based Data Reduction Rule for Weighted Cluster Editing in Polynomial Time
Creators: name: Schulz, H.
name: Nichterlein, A.
name: Niedermeier, R.
name: Weyand, C.
Publisher: name: Schloss Dagstuhl - Leibniz-Zentrum für Informatik GmbH (LZI)
Year: 2022
Subjects: Correlation Clustering
Minimum Cut
Maximum s-t-Flow

description: Given an undirected graph, the task in Cluster Editing is to insert and delete a minimum number of edges to obtain a cluster graph, that is, a disjoint union of cliques. In the weighted variant each vertex pair comes with a weight and the edge modifications have to be of minimum overall weight. In this work, we provide the first polynomial-time algorithm to apply the following data reduction rule of Böcker et al. [Algorithmica, 2011] for Weighted Cluster Editing: For a graph $G = (V,E)$, merge a vertex set $S ⊆ V$ into a single vertex if the minimum cut of G[S] is at least the combined cost of inserting all missing edges within G[S] plus the cost of cutting all edges from S to the rest of the graph. Complementing our theoretical findings, we experimentally demonstrate the effectiveness of the data reduction rule, shrinking real-world test instances from the PACE Challenge 2021 by around 24% while previous heuristic implementations of the data reduction rule only achieve 8%.
title: Long- term results of endovascular aortic stent graft implantation in 178 patients
Creators: name: Boc, Nina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Aneurysms
subject: Stents
subject: Catheter arteriography
subject: Interventional vascular
subject: Arteries / Aorta
subject: Dissection

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: First aortic stent graft was inplanted in 1991 (1) and the procedure became alternative to surgical treatment in patients with favourable anatomy (2). Long-term results are in focus, since long-ter durability of the procedure should be proven...
Sharp peaks in the conductance of double quantum dot and quantum dot spin-valve systems at high temperatures: A hierarchical quantum master equation approach
Creators: name: Wenderoth, Sebastian
name: Bätge, Jakob
name: Härtle, Rainer
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study sharp peaks in the conductance-voltage characteristics of a double quantum dot and a quantum dot spin-valve that are located around zero bias. The peaks share similarities with a Kondo peak but can be clearly distinguished, in particular as they occur at high temperatures. The underlying physical mechanism is a strong current suppression that is quenched in bias-voltage dependent ways by exchange interactions. Our theoretical results are based on the quantum master equation methodology, including the Born-Markov approximation and a numerically exact, hierarchical scheme, which we extend here to the spin-valve case. The comparison of exact and approximate results allows us to reveal the underlying physical mechanisms, the role of first-, second- and beyond-second-order processes and the robustness of the effect.
description: 5 pages, 7 figures, revised version
Vector Dark Matter through a Radiative Higgs Portal
Creators: name: DiFranzo, Anthony
name: Fox, Patrick J.
name: Tait, Tim M. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study a model of spin-1 dark matter which interacts with the Standard Model predominantly via exchange of Higgs bosons. We propose an alternative UV completion to the usual Vector Dark Matter Higgs Portal, in which vector-like fermions charged under SU(2)$_W \times$ U(1)$_Y$ and under the dark gauge group, U(1)$^\prime$, generate an effective interaction between the Higgs and the dark matter at one loop. We explore the resulting phenomenology and show that this dark matter candidate is a viable thermal relic and satisfies Higgs invisible width constraints as well as direct detection bounds.
description: v2: published, udpated references, included minor changes to text 19 pages, 6 figures
Aardweg, G. J. M. van den, Selbsttherapie von Homosexualität
Creators: name: Zimmerling, Peter
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821247736
description: Jahrbuch für evangelikale Theologie, V. 11 (1997): Jahrbuch für evangelikale Theologie, Band 11
title: Postmortem CT in emergency deparment: Influence of cardiopulmonary resuscitation
Creators: name: Murakami, Tomonori
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Forensics
subject: Diagnostic procedure
subject: CT
subject: Forensic / Necropsy studies

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The purpose of this exhibit is to describe CT findings of basic postmortem changes and additional findings modified by cardiopulmonary resuscitation (CPR), which can be misinterpreted as causes of...
Using Node Centrality and Optimal Control to Maximize Information Diffusion in Social Networks
Creators: name: Kandhway, Kundan
name: Kuri, Joy
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: Multiagent Systems (cs.MA)
subject: Systems and Control (eess.SY)
subject: Optimization and Control (math.OC)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We model information dissemination as a susceptible-infected epidemic process and formulate a problem to jointly optimize seeds for the epidemic and time varying resource allocation over the period of a fixed duration campaign running on a social network with a given adjacency matrix. Individuals in the network are grouped according to their centrality measure and each group is influenced by an external control function---implemented through advertisements---during the campaign duration. The aim is to maximize an objective function which is a linear combination of the reward due to the fraction of informed individuals at the deadline, and the aggregated cost of applying controls (advertising) over the campaign duration. We also study a problem variant with a fixed budget constraint. We set up the optimality system using Pontryagin's Maximum Principle from optimal control theory and solve it numerically using the forward-backward sweep technique. Our formulation allows us to compare the performance of various centrality measures (pagerank, degree, closeness and betweenness) in maximizing the spread of a message in the optimal control framework. We find that degree---a simple and local measure---performs well on the three social networks used to demonstrate results: scientific collaboration, Slashdot and Facebook. The optimal strategy targets central nodes when the resource is scarce, but non-central nodes are targeted when the resource is in abundance. Our framework is general and can be used in similar studies for other disease or information spread models---that can be modeled using a system of ordinary differential equations---for a network with a known adjacency matrix.
description: 12 pages, 11 figures. Author's version of an article published in IEEE Transactions on Systems, Man, and Cybernetics: Systems. Minor typos were fixed in v2. The published version can be accessed at http://dx.doi.org/10.1109/TSMC.2016.2531690
Constraints on leptophilic light dark matter from internal heat flux of Earth
Creators: name: Chauhan, Bhavesh
name: Mohanty, Subhendra
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dark Matter in Earth intersecting orbits can scatter off the electrons and lose energy, and finally be gravitationally bound to Earth. Eventually they lose enough energy and accumulate at the core. It is assumed that DM annihilates/decays predominantly into Standard Model particles inside Earth. The heat flux from these processes is compared with the experimentally measured value of internal heat flux of Earth which is 44 TW. Assuming steady state between capture and annihilation/decay, we put constraints on the scattering cross section of DM with electrons as a function of their mass. For low mass regions ($<10^{-2}$GeV), these constraints on leptophilic DM are better than ones obtained from direct-detection experiments.
description: Journal version to appear in Phys Rev D
Probing TeV scale Top-Philic Resonances with Boosted Top-Tagging at the High Luminosity LHC
Creators: name: Kim, Jeong Han
name: Kong, Kyoungchul
name: Lee, Seung J.
name: Mohlabeng, Gopolang
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the discovery potential of singly produced top-philic resonances at the high luminosity (HL) LHC in the four-top final state. Our analysis spans over the fully-hadronic, semi-leptonic, and same-sign dilepton channels where we present concrete search strategies adequate to a boosted kinematic regime and high jet-multiplicity environments. We utilize the Template Overlap Method (TOM) with newly developed template observables for tagging boosted top quarks, a large-radius jet variable $M_J$ and customized b-tagging tactics for background discrimination. Our results show that the same-sign dilepton channel gives the best sensitivity among the considered channels, with an improvement of significance up to 10%-20% when combined with boosted-top tagging. Both the fully-hadronic and semi-leptonic channels yield comparable discovery potential and contribute to further enhancements in the sensitivity by combining all channels. Finally, we show the sensitivity of a top-philic resonance at the LHC and HL-LHC by showing the $2σ$ exclusion limit and $5σ$ discovery reach, including a combination of all three channels.
description: 19 pages, 14 figures
title: Crohn disease’s perianal complications and MRI: what, when, why.
Creators: name: Farchione, Alessandra
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Fistula
subject: Abscess
subject: Diagnostic procedure
subject: MR
subject: Gastrointestinal tract

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To illustrate: - What Crohn disease (CD)’s perianal complications are; - When the magnetic resonance imaging (MRI) is indicated in CD; - Why the use of MRI with external phased-array multi-coils is better than other imaging modalities; MRI...
BEC-Polaron gas in a boson-fermion mixture : a many-body extension of Lee-Low-Pines theory
Creators: name: Nakano, Eiji
name: Yabu, Hiroyuki
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We investigate the ground state properties of the gaseous mixture of a single species of bosons and fermions at zero temperature, where bosons are major in population over fermions, and form the Bose-Einstein condensate (BEC). The boson-boson and boson-fermion interactions are assumed to be weakly repulsive and attractive respectively, while the fermion-fermion interaction is absent due to the Pauli exclusion for the low energy $s$-wave scattering. We treat fermions as a gas of polarons dressed with Bogoliubov phonons, which is an elementary excitation of the BEC, and evaluate the ground state properties with the method developed by Lemmens, Devreese, and Brosens (LDB) originally for the electron polaron gas, and also with a general extension of the Lee-Low-Pines theory for many-body systems (eLLP), which incorporates the phonon drag effects as in the original LLP theory. The formulation of eLLP is developed and discussed in the present paper. The binding (interaction) energy of the polaron gas is calculated in these methods, and shown to be finite (negative) for the dilute gas of heavy fermions with attractive boson-fermion interactions, though the suppression by the many-body effects exists.
description: 43 pages, 9 figures, version accepted for PRB. Some references were added, and typos were corrected
title: Ultrasonography High-resolution at the control of intubation of lacrimal canaliculus
Creators: name: Privalova, Ekaterina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Inflammation
subject: Recanalisation
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Head and neck
subject: Eyes
subject: Ultrasound physics

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To determine the possibility of using high-resolution ultrasonography for parients with intubation material located in the view of the lacrimal...
Dependence of Small Planet Frequency on Stellar Metallicity Hidden by Their Prevalence
Creators: name: Zhu, Wei
name: Wang, Ji
name: Huang, Chelsea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The dependence of gas giant planet occurrence rate on stellar metallicity has been firmly established. We extend this so-called planet-metallicity correlation to broader ranges of metallicities and planet masses/radii. In particular, we assume that the planet-metallicity correlation is a power law below some critical saturation threshold, and that the probability of hosting at least one planet is unity for stars with metallicity above the threshold. We then are able to explain the discrepancy between the tentative detection and null detection in previous studies regarding the planet-metallicity correlation for small planets. In particular, we find that the null detection of this correlation can be attributed to the combination of high planet occurrence rate and low detection efficiency. Therefore, a planet-metallicity correlation for small planets cannot be ruled out. We propose that stars with metallicities lower than the Solar value are better targets for testing the planet-metallicity correlation for small planets.
description: 10 pages, 3 figures, ApJ accepted
Division Polynomials and Intersection of Projective Torsion Points
Creators: name: Bogomolov, Fedor
name: Fu, Hang
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Given two elliptic curves, each of which is associated with a projection map that identifies opposite elements with respect to the natural group structure, we investigate how their corresponding projective images of torsion points intersect.
title: Underdiagnosis of pulmonary embolism (PE) in MDCT for advanced NSCLC: “human factor” as the main cause
Creators: name: Binello, Francesca
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Embolism / Thrombosis
subject: Diagnostic procedure
subject: Computer Applications-Detection, diagnosis
subject: CT
subject: Thorax
subject: Pulmonary vessels
subject: Lung

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: Although the technique used to perform routine thoracic CT differs from that used to perform CT pulmonary angiography, many routine thoracic CT examinations are adequate also for the evaluation of PE. The purpose of this exhibit is to evaluate the...
title: Diagnostic accuracy of whole-body diffusion imaging with background signal suppression(DWIBS) for detection of malignant tumours:a comparison with PET/CT
Creators: name: Balaji, Ravikant
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Metastases
subject: Lymphoma
subject: Technology assessment
subject: Molecular imaging
subject: Imaging sequences
subject: PET-CT
subject: MR-Diffusion/Perfusion
subject: MR
subject: Oncology
subject: Lymph nodes
subject: Abdomen

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The purpose of this study was to assess diagnostic performance and accuracy of diffusion weighted imaging with background signal suppression (DWIBS) compared with 18 -Fluorodeoxyglucose positron emission tomography (FDG-PET) in detection of...
title: Optical Imaging for Therapy Monitoring of Synovitis in the hands of Patients with Rheumatological Disorders in comparison to MRI: Initial Results.
Creators: name: Meier, Reinhard
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Musculoskeletal joint
subject: Experimental
subject: MR
subject: Contrast agent-intravenous
subject: Molecular imaging
subject: Arthritides

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Treatment monitoring and assessment of disease progression of inflammatory arthritis disorders is based on a combination of clinical, laboratory and imaging data. Since recently the therapy of arthritides has been improved with the introduction of...
Stability analysis for bad cavity lasers using inhomogeneously broadened spin-1/2 atoms as gain medium
Creators: name: Kazakov, Georgy A.
name: Schumm, Thorsten
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Bad cavity lasers are experiencing renewed interest in the context of active optical frequency standards, due to their enhanced robustness against fluctuations of the laser cavity. The gain medium would consist of narrow-linewidth atoms, either trapped inside the cavity or intersecting the cavity mode dynamically. A series of effects like the atoms finite velocity distribution, atomic interactions, or interactions of realistic multilevel atoms with auxiliary or stray fields can lead to an inhomogeneous broadening of the atomic gain profile. This causes the emergence of instable regimes of laser operation, characterized by complex temporal patterns of the field amplitude. We study the steady-state solutions and their stability for the metrology-relevant case of a bad cavity laser with spin-1/2 atoms, such as Yb-171, interacting with an external magnetic field. For the stability analysis, we present a new and efficient method, that can be applied to a broad class of single-mode bad cavity lasers with inhomogeneously broadened multilevel atoms acting as gain medium.
description: 17 pages, 8 figures
Williams, J. R., Systematische Theologie aus charismatischer Sicht
Creators: name: Zimmerling, Peter
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821248414
description: Jahrbuch für evangelikale Theologie, V. 11 (1997): Jahrbuch für evangelikale Theologie, Band 11
title: Accuracy of preoperative Three-dimensional CT (3DCT) imaging of hand tendon ruptures not correctly diagnosed at sonography
Creators: name: Amore, BARBARA
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Musculoskeletal joint
subject: CT
subject: Computer Applications-3D
subject: Trauma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Extensor and flexor tendon ruptures in the handsometimes occur in association with wrist trauma or other disorders such as rheumatoid arthritis and can usually be accurately diagnosed based on trauma history and clinical examination (2). In selected...
title: Ultrasonic evaluation of superior mesenteric vein in cancer of the pancreatic head
Creators: name: Pershina, Ekaterina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Pathology
subject: Neoplasia
subject: Observer performance
subject: Comparative studies
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Pancreas
subject: Oncology
subject: Abdomen

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To identify ultrasonic criteria for involvement of superior mesenteric vein in the neoplastic process of the pancreatic head in order to determine the proper treatment protocol of patients with tumors of the pancreatic...
title: Imaging characteristics of male breast cancer
Creators: name: Dominelli, Valeria
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Oncology
subject: Mammography
subject: Ultrasound
subject: Diagnostic procedure
subject: Neoplasia

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To indicate radiological presentation of male breast cancer and to show how to distinguish benign conditions that can mimic malignancy in...
Commutants of weighted shift directed graph operator algebras
Creators: name: Kribs, David W.
name: Levene, Rupert H.
name: Power, Stephen C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 47L75, 47L55, 47B37

description: We consider non-selfadjoint operator algebras $\mathfrak{L}(G,λ)$ generated by weighted creation operators on the Fock-Hilbert spaces of countable directed graphs $G$. These algebras may be viewed as noncommutative generalizations of weighted Bergman space algebras, or as weighted versions of the free semigroupoid algebras of directed graphs. A complete description of the commutant is obtained together with broad conditions that ensure the double commutant property. It is also shown that the double commutant property may fail for $\mathfrak{L}(G,λ)$ in the case of the single vertex graph with two edges and a suitable choice of left weight function $λ$.
description: 18 pages, 5 figures. Accepted for publication in Proceedings of the AMS
title: MRI-Guided Breast Biopsy: Initial Experience in Chinese women
Creators: name: Xing, Ning
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Pathology
subject: Imaging sequences
subject: CAD
subject: Biopsy
subject: MR-Diffusion/Perfusion
subject: Mammography
subject: MR
subject: Thorax
subject: Neuroradiology spine
subject: Breast
subject: Inflammation
subject: Musculoskeletal spine

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: The objective of this study was to evaluate our initial clinical experience with MRI-guided vacuum-assisted breast biopsy in Chinese...
Renormalization Group Improved Higgs Inflation with a Running Kinetic Term
Creators: name: Takahashi, Fuminobu
name: Takahashi, Ryo
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study a Higgs inflation model with a running kinetic term, taking account of the renormalization group evolution of relevant coupling constants. Specifically we study two types of the running kinetic Higgs inflation, where the inflaton potential is given by the quadratic or linear term potential in a frame where the Higgs field is canonically normalized. We solve the renormalization group equations at two-loop level and calculate the scalar spectral index and the tensor-to-scalar ratio. We find that, even if the renormalization group effects are included, the quadratic inflation is ruled out by the CMB observations, while the linear one is still allowed.
description: 14 pages, 1 figure, published version
title: Simple ovarian cysts in pre and post menopausal women: what, where and when.
Creators: name: Higgins, Sarah
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cysts
subject: Education
subject: Audit and standards
subject: Ultrasound
subject: MR
subject: CT
subject: Genital / Reproductive system female

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: Understand the value of directing pre and post menopausal women with asymptomatic simple ovarian cysts into their correct diagnostic pathways. Review recent UK and American guidelines on ovarian cyst management. Increase confidence in managing risk...
Wenz, A.. Das Wort Gottes - Gericht und Rettung
Creators: name: Felber, Stefan
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821248392
description: Jahrbuch für evangelikale Theologie, V. 11 (1997): Jahrbuch für evangelikale Theologie, Band 11
Generalized second law of thermodynamics in f(R,T) theory of gravity
Creators: name: Momeni, D.
name: Moraes, P. H. R. S.
name: Myrzakulov, R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a study of the generalized second law of thermodynamics in the scope of the f(R,T) theory of gravity, with R and T representing the Ricci scalar and trace of the energy-momentum tensor, respectively. From the energy-momentum tensor equation for the f(R,T) = R + f(T) case, we calculate the form of the geometric entropy in such a theory. Then, the generalized second law of thermodynamics is quantified and some relations for its obedience in f(R,T) gravity are presented. Those relations depend on some cosmological quantities, as the Hubble and deceleration parameters, and on the form of f(T).
description: 6 pages, no figures, accepted for publication in Astrophys. Space Sci
title: Extragenital endometriosis: assessment with Magnetic Resonance Imaging.
Creators: name: Bonaventure, Ndefor Tamu
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Diagnostic procedure
subject: MR
subject: Pelvis
subject: Abdomen
subject: Tissue characterisation

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To illustrate the role of Magnetic Resonance Imaging (MRI) in the evaluation of extragenital endometriosis in order to obtain an adequate preoperative planning. MRI is an excellent imaging modality in the assessment of patients with...
Plasma-driven ultrashort bunch diagnostic
Creators: name: Dornmair, I.
name: Schroeder, C. B.
name: Floettmann, K.
name: Marchetti, B.
name: Maier, A. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: FOS: Physical sciences

description: Ultrashort electron bunches are crucial for an increasing number of applications, however, diagnosing their longitudinal phase space remains a challenge. We propose a new method that harnesses the strong electric fields present in a laser driven plasma wakefield. By transversely displacing driver laser and witness bunch, a streaking field is applied to the bunch. This field maps the time information to a transverse momentum change and, consequently, to a change of transverse position. We illustrate our method with simulations where we achieve a time resolution in the attosecond range.
title: Functional real time imaging of the heart at 3 Tesla
Creators: name: Theisen, Daniel
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiac
subject: MR physics
subject: MR

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: To investigate the potential of free-breathing single-shot real-time (ss-rt) protocols [1-3] for functional cardiac imaging at 3 Tesla. The current gold standard for the determination of functional parameters such as left ventricular end diastolic...
On the volume inside old black holes
Creators: name: Christodoulou, Marios
name: De Lorenzo, Tommaso
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Black holes that have nearly evaporated are often thought of as small objects, due to their tiny exterior area. However, the horizon bounds large spacelike hypersurfaces. A compelling geometric perspective on the evolution of the interior geometry was recently shown to be provided by a generally covariant definition of the volume inside a black hole using maximal surfaces. In this article, we expand on previous results and show that finding the maximal surfaces in an arbitrary spherically symmetric spacetime is equivalent to a 1+1 geodesic problem. We then study the effect of Hawking radiation on the volume by computing the volume of maximal surfaces inside the apparent horizon of an evaporating black hole as a function of time at infinity: while the area is shrinking, the volume of these surfaces grows monotonically with advanced time, up to when the horizon has reached Planckian dimensions. The physical relevance of these results for the information paradox and the remnant scenarios are discussed.
description: 9 pages, 5 figures
Schwarz, H., Schöpfungsglaube im Horizont moderner Naturwissenschaft
Creators: name: Junker, Reinhard
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821248368
description: Jahrbuch für evangelikale Theologie, V. 11 (1997): Jahrbuch für evangelikale Theologie, Band 11
The Two-Loop Symbol of all Multi-Regge Regions
Creators: name: Bargheer, Till
name: Papathanasiou, Georgios
name: Schomerus, Volker
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the symbol of the two-loop n-gluon MHV amplitude for all Mandelstam regions in multi-Regge kinematics in N=4 super Yang-Mills theory. While the number of distinct Mandelstam regions grows exponentially with n, the increase of independent symbols turns out to be merely quadratic. We uncover how to construct the symbols for any number of external gluons from just two building blocks which are naturally associated with the six- and seven-gluon amplitude, respectively. The second building block is entirely new, and in addition to its symbol, we also construct a prototype function that correctly reproduces all terms of maximal functional transcendentality.
description: 20 pages, v2: include details on functions f and g, make appendix consistent with main text, typesetting (published version)
title: the thousand faces of brain lymphoma
Creators: name: Quintana, Ignacio
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: Oncology
subject: CT
subject: MR-Diffusion/Perfusion
subject: MR-Spectroscopy
subject: Education
subject: Lymphoma

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: - To introduce, through a number of cases collected in our clinical practice, the different imaging findings of this chamaleon-like tumor, in order to facilitate its recognition. - To signify the results obteined in DWI studies and propose the use...
title: CT imaging of gynecological emergency disease
Creators: name: Bandres Carballo, Beatriz
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Abdomen
subject: Emergency
subject: Genital / Reproductive system female
subject: CT
subject: Computer Applications-General
subject: Acute

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives:  To identify the radiological findings on multidetector CT (MDCT) that allow the characterization of various gynecological and obstetric pathologies seen in the emergency room. To recognize in what situations an immediate or postponed...
Adaptive multi-pattern fast block-matching algorithm based on Motion Classification techniques
Creators: name: González-Díaz, Iván
name: De-Frutos-López, Manuel
name: Sanz-Rodríguez, Sergio
name: Díaz-De-María, Fernando
Publisher: name: Technische Universität Berlin
Year: 2007
Subjects: subject: 004 Datenverarbeitung; Informatik
subject: block-matching
subject: binary linear classifier
subject: motion classification
subject: motion estimation

description: Motion estimation is the most time-consuming subsystem in a video codec. Thus, more efficient methods of motion estimation should be investigated. Real video sequences usually exhibit a wide-range of motion content as well as different degrees of detail, which become particularly difficult to manage by typical block-matching algorithms. Recent developments in the area of motion estimation have focused on the adaptation to video contents. Adaptive thresholds and multi-pattern search algorithms have shown to achieve good performance when they success to adjust to motion characteristics. This paper proposes an adaptive algorithm, called MCS, that makes use of an especially tailored classifier that detects some motion cues and chooses the search pattern that best fits to them. Specifically, a hierarchical structure of binary linear classifiers is proposed. Our experimental results show that MCS notably reduces the computational cost with respect to an state-of-the-art method while maintaining the quality.
Dark Forces Searches at KLOE-2
Creators: name: del Rio, Elena Perez
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Direct searches of dark matter are performed at accelerator facilities. The existence of a new vector boson has been postulated in different scenarios where in the most basic scheme the coupling to the SM can be achieved via a kinetic mixing term due to the U boson. The KLOE experiment at DA$ϕ$NE searched for the U boson both in Dalitz decays of the $ϕ$ meson and in continuum events. For all of these searches an upper limit for the U boson coupling $ε^{2}$ has been established in the mass range $50 \, \text{MeV} < m_U < 1000\,\text{MeV}$. A summary of the different models and searches along with results are presented.
description: Acta Phys. Polon. B 2016
title: Evolution of ventriculomegaly: comparison between fetal MR imaging and post-natal diagnostic imaging.
Creators: name: Mehrabi, Sara
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: Foetal imaging
subject: MR
subject: Intrauterine diagnosis
subject: Obstetrics
subject: Congenital
subject: Foetus

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: This study aims to evaluate the evolution of VM diagnosed with foetal MRI, comparing the results obtained in foetal MRI with the ones achieved inpost-natal diagnostic imaging, such as trans cranial ultrasound and encephalic MRI. Ventriculomegaly...
Simplified derivation of the gravitational wave stress tensor from the linearized Einstein field equations
Creators: name: Balbus, Steven A
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A conserved stress energy tensor for weak field gravitational waves propagating in vacuum is derived directly from the linearized wave equation alone, for an arbitrary gauge using standard general relativity. In any harmonic gauge, the form of the tensor leads directly to the classical expression for the outgoing wave energy. The method described here, however, is a much simpler, shorter, and more physically motivated approach than is the customary procedure, which involves a lengthy and cumbersome second-order (in wave-amplitude) calculation starting with the Einstein tensor. Our method has the added advantage of exhibiting the direct coupling between the outgoing energy flux in gravitational waves and the work done by the gravitational field on the sources. For nonharmonic gauges, the directly derived wave stress tensor has an apparent index asymmetry. This coordinate artefact may be removed, and the symmetrized (still gauge-invariant) tensor then takes on its widely-used form. Angular momentum conservation follows immediately. For any harmonic gauge, however, the stress tensor is manifestly symmetric from the start and its derivation depends, in its entirety, on the structure of the linearized wave equation.
description: 11 pages, no figures. Published in PNAS
MARVEL D3.3: E2F2C Privacy preservation mechanisms
Creators: name: Brutti, Alessio
Publisher: name: Zenodo
Year: 2023
Subjects: smart city
anonymisation
Edge-to-Fog-to-Cloud
audio-visual data privacy

description: This document describes the mechanisms deployed in MARVEL to preserve data privacy in the Edge-to-Fog-to-Cloud (E2F2C) computing continuum. This public document describes the efforts carried out under Task 3.1 for the development of “AI-based methods for audio-visual data privacy”. The main goal of the task is to work on methods and algorithms capable to run at the edge and ensure protection of personal data in audio-visual recordings. Although the task focused on solutions for audio and video anonymisation capable of preserving the scene information while removing any information about the identity of the citizens being recorded, privacy preservation in the E2F2C computing continuum is ensured in the MARVEL project in multiple ways. Therefore, even though the core part of the document will be on video and audio anonymisation, we will also provide short descriptions of encryptions and cybersecurity methods (T3.4), approaches for porting the AI processing at the edge (T3.3 and T3.5), and security and authentication mechanisms implemented in the MARVEL Data Corpus in WP2. In this way, we aim at highlighting the connections of those approaches to the ones developed in T3.1 towards increased privacy preservation in MARVEL. To better contextualise the motivations and the challenges behind the adopted solutions, the document also revises the pilot-specific privacy issues that the project has to consider.
Coherent excited states in superconductors due to a microwave field
Creators: name: Semenov, A. V.
name: Devyatov, I. A.
name: de Visser, P. J.
name: Klapwijk, T. M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We describe theoretically the depairing effect of a microwave field on diffusive s-wave superconductors. The ground state of the superconductor is altered qualitatively in analogy to the depairing due to a dc current. In contrast to dc-depairing the density of states acquires, for microwaves with frequency $ω_0$, steps at multiples of the photon energy $Δ\pm n\hbarω_0$ and shows an exponential-like tail in the subgap regime. We show that this ac-depairing explains the measured frequency shift of a superconducting resonator with microwave power at low temperatures.
The Itô SDEs and Fokker--Planck equations with Osgood and Sobolev coefficients
Creators: name: Luo, Dejun
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We study the degenerated Itô SDE on $\mathbb R^d$ whose drift coefficient only fulfills a mixed Osgood and Sobolev regularity. Under suitable assumptions on the gradient of the diffusion coefficient and on the divergence of the drift coefficient, we prove the existence and uniqueness of generalized stochastic flows associated to such equations. We also prove the uniqueness of solutions to the corresponding Fokker--Planck equation by using the probabilistic method.
description: 27 pages
Spin-adapted Matrix Product States and Operators
Creators: name: Keller, Sebastian
name: Reiher, Markus
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Matrix product states (MPSs) and matrix product operators (MPOs) allow an alternative formulation of the density matrix renormalization group algorithm introduced by White. Here, we describe how non-abelian spin symmetry can be exploited in MPSs and MPOs by virtue of the Wigner--Eckart theorem at the example of the spin-adapted quantum chemical Hamiltonian operator.
description: 10 pages, 1 table
title: Prospective evaluation of the radiologist's hand dose in CT-guided interventions
Creators: name: Rogits, Bela
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Radioprotection / Radiation dose
subject: Interventional non-vascular
subject: Fluoroscopy
subject: CT
subject: Diagnostic procedure
subject: Biopsy
subject: Ablation procedures
subject: Occupational / Environmental hazards
subject: Metastases

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: CT-fluoroscopy (CTF) was first introduced by Kato and Katada in 1993 and has ascended into clinical routine since then [1]. CTFallows real-time monitoring with high geometric accuracy and without significant artifacts, which leads to reduced...
title: MRI Monitored USPIO-Labelled Intracardial Stem Cell Therapy in Acute Myocardial Infarct, Imaging Features with Pathologic Correlation in Porcine Model
Creators: name: Korpi, Riikka
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiac
subject: Contrast agents
subject: MR-Diffusion/Perfusion
subject: MR
subject: Surgery
subject: Treatment effects
subject: Acute
subject: Transplantation
subject: Ischaemia / Infarction

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Acute myocardial infarction has a high mortality rate.(1) In clinical and experimental settings the cell therapy has shown potential to improve myocardial function after infarction. (2,3) The mechanisms underlying the changes cells undergo after...
title: Can true real-time MR imaging with radial k-space sampling be as accurate as videofluoroscopy in the evaluation of velopharyngeal dysfunction during speaking and swallowing without radiation?
Creators: name: Larson, Maya Christina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Head and neck
subject: MR
subject: MR-Functional imaging
subject: Dynamic swallowing studies
subject: Speech disorders

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1. Velopharyngeal dysfunction (VPD) is characterized by the incapacity of a complete closure of the muscular valve separating the oral and nasal cavities. The usual diagnostic procedures to evaluate the cause of VPD and the severity are clinical...
Thermal Dileptons from Coarse-Grained Transport as Fireball Probes at SIS Energies
Creators: name: Galatyuk, Tetyana
name: Hohler, Paul M.
name: Rapp, Ralf
name: Seck, Florian
name: Stroth, Joachim
Publisher: name: arXiv
Year: 2015
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Utilizing a coarse-graining method to convert hadronic transport simulations of Au+Au collisions at SIS energies into local temperature, baryon and pion densities, we compute the pertinent radiation of thermal dileptons based on an in-medium $ρ$ spectral function that describes available spectra at ultrarelativistic collision energies. In particular, we analyze how far the resulting yields and slopes of the invariant-mass spectra can probe the lifetime and temperatures of the fireball. We find that dilepton radiation sets in after the initial overlap phase of the colliding nuclei of about 7 fm/c, and lasts for about 13 fm/c. This duration closely coincides with the development of the transverse collectivity of the baryons, thus establishing a direct correlation between hadronic collective effects and thermal EM radiation, and supporting a near local equilibration of the system. This fireball "lifetime" is substantially smaller than the typical 20-30 fm/c that naive considerations of the density evolution alone would suggest. We furthermore find that the total dilepton yield radiated into the invariant-mass window of $M=0.3-0.7$ GeV/$c^{2}$, normalized to the number of charged pions, follows a relation to the lifetime found earlier in the (ultra-) relativistic regime of heavy-ion collisions, and thus corroborates the versatility of this tool. The spectral slopes of the invariant-mass spectra above the $ϕ$ mass provide a thermometer of the hottest phases of the collision, and agree well with the maximal temperatures extracted from the coarse-grained hadron spectra.
description: 9 pages, 6 figures; v2: extended discussion, matches the version accepted for publication
Rittner, R. (Hg.), Glauben Christen und Muslime an denselben Gott?
Creators: name: Eber, Jochen
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821247922
description: Jahrbuch für evangelikale Theologie, V. 11 (1997): Jahrbuch für evangelikale Theologie, Band 11