cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Impact of climate anomalies on instability and predictability of weather systems
Creators: name: OSBROUGH, STACEY LEE
Publisher: name: Monash University
Year: 2023
Subjects: classificationCode: 370201
subject: Climate change processes
classificationCode: 370105
subject: Atmospheric dynamics

description: This thesis aims to improve our understanding of the changes Australian temperatures and rainfall have undergone since the mid-20th Century. Multi-scale interaction of coupled ocean and atmospheric systems cascading down from planetary to synoptic scale weather instability modes and the effect their complex relationship has with regional rainfall is investigated. Research includes climate anomalies of large-scale teleconnection patterns, the changes in the Southern Hemisphere subtropical jet and the associated fronts, highs and cyclonic storms. The characteristics of the El Niño – Southern Oscillation from coupled climate models and the seasonal ensemble prediction of El Niño and La Niña events is examined.
New decay modes of heavy Higgs bosons in a two Higgs doublet model with vectorlike leptons
Creators: name: Dermisek, Radovan
name: Lunghi, Enrico
name: Shin, Seodong
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In models with extended Higgs sector and additional matter fields, the decay modes of heavy Higgs bosons can be dominated by cascade decays through the new fermions rendering present search strategies ineffective. We investigate new decay topologies of heavy neutral Higgses in two Higgs doublet model with vectorlike leptons. We also discuss constraints from existing searches and discovery prospects. Among the most interesting signatures are monojet, mono Z, mono Higgs, and Z and Higgs bosons produced with a pair of charged leptons.
description: 16 pages, 6 figures
title: Prevalence of potentially significant extracardiac findings in patients undergoing 320 multi-detector computed tomography coronary angiography for assessment of chest pain
Creators: name: Baird, Andrew
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Chronic obstructive airways disease
subject: Atelectasis
subject: Arteriosclerosis
subject: Diagnostic procedure
subject: CT-Angiography
subject: Thorax
subject: Cardiovascular system

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Numerous studies have investigated the prevalence of extracardiac findings on coronary CT angiography (CTCA) scans with the reported rates ranging from 3.1– 76.8 1,2 . Coronary angiography using 320 multi-detector CT has been performed in our...
title: CT imaging of blunt and penetrating bowel and mesenteric injury
Creators: name: Mutiso, Kavulani
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: eLearning
subject: CT
subject: Trauma
subject: Gastrointestinal tract
subject: Trauma

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: 1. To identify the signs of bowel and mesenteric trauma on multi-detector computed tomography (MDCT) imaging. 2. To identify injuries which require surgical intervention as opposed to those that can be treated conservatively. 3. To review the common...
Gundry, R.H., Mark: A Commentary on his Apology for the Cross
Creators: name: Bayer, Hans F.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821138961
description: Jahrbuch für evangelikale Theologie, V. 10 (1996): Jahrbuch für evangelikale Theologie, Band 10
title: MRI teaching atlas of recent post-traumatic injuries of the knee
Creators: name: Ben Miled, Aicha
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Trauma
subject: Diagnostic procedure
subject: MR
subject: Trauma
subject: Musculoskeletal system
subject: Education and training

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: Illustrate by mean of different cases seen in our institution the main elementary traumatic lesions seen in meniscus , ligaments , muscles, tendons as well as cartilage lesions and subcortical bone injuries , emphasizing on the most frequent...
title: The role of DWI in the detection and characterisation of breast lesions with high b values
Creators: name: Nogueira, Luisa
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Oncology
subject: MR-Diffusion/Perfusion
subject: Imaging sequences
subject: Diagnostic procedure
subject: Outcomes analysis
subject: Neoplasia
subject: Pathology
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Diffusion weighted imaging (DWI) is a useful imaging technique to detect and characterise breast lesions [1-5]. Although there is no consensus as to the b-values to use, most studies used b-values’ ranges between 0-1000 s/mm 2 . However, few...
Spontaneous breaking of Lorentz symmetry in $(2+ε)$-dimensional QED
Creators: name: Janssen, Lukas
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The phase diagram of massless quantum electrodynamics in three space-time dimensions as a function of fermion flavor number $N$ exhibits two well-known phases: at large $N > N_c^{conf}$ the system is in a conformal gapless state, while for small $N < N_c^{χSB}$ the fermions are expected to develop a dynamical mass due to spontaneous chiral symmetry breaking. Using $ε$ expansion near the lower critical dimension of 2, as well as the recent results on the generalization of the $F$ theorem to continuous dimension, we show that $N_c^{conf} > N_c^{χSB}$. There is therefore an intermediate range of values of $N$ at which a third phase is stabilized. We demonstrate that this phase is characterized by spontaneous breaking of Lorentz symmetry, in which a composite vector boson field acquires a vacuum expectation value with the fermions and the photon remaining massless.
description: 7 pages, 3 figures, v2: presentation clarified and streamlined, flow diagrams added, references added, v3: additional comments and explanations, published version
INFLUENCE OF THE TEMPERATURE OF THE PRELIMINARY HEATING AND FURLOUGH DEFECT METALLIC PRODUCT AND WAY TO THEIR LIQUIDATIONS
Creators: name: YA.T. RAHIMOV
name: I.U. ZHUNAEV
name: Z. ABDUKAHHOROV
Publisher: name: Zenodo
Year: 2024
Subjects: Rolling, Forging, Hot Pressing, Toughness, Iznosostoykosti, Deformation, Warping, Not Metallic Cetin, Furlough Itself, Cool And Hot Rifts, Times Of The Sink; The Overheat.

description: Abstract

At present exists much methods of the increase to stability of the details of the technological machines - mainly different variants of the thermal processing. In article is considered methods determination defects metallic product and way to their liquidations, using methods not traditional thermal processing
Quantum mechanics: The Bayesian theory generalised to the space of Hermitian matrices
Creators: name: Benavoli, Alessio
name: Facchini, Alessandro
name: Zaffalon, Marco
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the problem of gambling on a quantum experiment and enforce rational behaviour by a few rules. These rules yield, in the classical case, the Bayesian theory of probability via duality theorems. In our quantum setting, they yield the Bayesian theory generalised to the space of Hermitian matrices. This very theory is quantum mechanics: in fact, we derive all its four postulates from the generalised Bayesian theory. This implies that quantum mechanics is self-consistent. It also leads us to reinterpret the main operations in quantum mechanics as probability rules: Bayes' rule (measurement), marginalisation (partial tracing), independence (tensor product). To say it with a slogan, we obtain that quantum mechanics is the Bayesian theory in the complex numbers.
description: This paper has been accepted to Physics Review A
Ferroic quadrupolar ordering in CeCoSi revealed using $^{59}$Co-NMR measurements
Creators: name: Manago, Masahiro
name: Ishigaki, Ayano
name: Tou, Hideki
name: Harima, Hisatomo
name: Tanida, Hiroshi
name: Kotegawa, Hisashi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A nonmagnetic phase transition at $T_0 \sim 12$ K in the tetragonal system CeCoSi with a Kramers doublet ground state is reminiscent of an electric quadrupole ordering, even though its well-separated crystal-electric-field (CEF) levels are unlikely to acquire higher-order multipole degrees of freedom. Here, we report $^{59}$Co nuclear magnetic resonance (NMR) studies that are highly compatible with a ferroic quadrupole ordering below $T_0$. Changes in the NMR spectra below $T_0$ suggest that an external magnetic field induces ferroic Ce dipole moments orthogonal to the field, enabling domain selection in the nonmagnetic phase. Our findings suggest the presence of a ferroic $O_{zx}$-type quadrupole component in CeCoSi and demonstrate that quadrupole ordering may occur under well-separated CEF levels in tetragonal systems.
description: 7 pages, 6 figures, 1 table
title: CT colonography with minimal same-day bowel preparation: evaluation of feasibility, tagging quality, patient acceptance and diagnostic accuracy
Creators: name: Ciolina, Maria
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Gastrointestinal tract
subject: CT
subject: Colonography CT
subject: Drugs / Reactions

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: PURPOSE BowelPreparationrepresentsa crucialstepfor a successful CT Colonography. Our study aimed to evaluate a same day iodine bowel preparation for CTcolonography usingIopamidol in asymptomatic and symptomatic patients undergoing...
General proof of the entropy principle for self-gravitating fluid in f(R) Gravity
Creators: name: Fang, Xiongjun
name: Guo, Minyong
name: Jing, Jiliang
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The discussions on the connection between gravity and thermodynamics attract much attention recently. We consider a static self-gravitating perfect fluid system in $f(R)$ gravity, which is an important theory could explain the accelerated expansion of the universe. We first show that the Tolman-Oppenheimer-Volkoff equation of $f(R)$ theories can be obtained by thermodynamical method in spherical symmetric spacetime. Then we prove that the maximum entropy principle is also valid for $f(R)$ gravity in general static spacetimes beyond spherical symmetry. The result shows that if the constraint equation is satisfied and the temperature of fluid obeys Tolmans law, the extrema of total entropy implies other components of gravitational equations. Conversely, if $f(R)$ gravitational equation hold, the total entropy of the fluid should be extremum. Our work suggests a general and solid connection between $f(R)$ gravity and thermodynamics.
description: 18 pages. arXiv admin note: text overlap with arXiv:1404.6601 by other authors
Coupling hydrodynamics and radiation calculations for star-jet interactions in AGN
Creators: name: de la Cita, Víctor M.
name: Bosch-Ramon, Valentí
name: Paredes-Fortuny, Xavier
name: Khangulyan, Dmitry
name: Perucho, Manel
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Stars and their winds can contribute to the non-thermal (NT) emission in extragalactic jets. Given the complexity of jet-star interactions, the properties of the resulting emission are strongly linked to those of the emitting flows. We simulate the interaction between a stellar wind and a relativistic extragalactic jet and use the hydrodynamic results to compute the NT emission under different conditions. We perform relativistic axisymmetric hydrodynamical simulations of a relativistic jet interacting with a supersonic, non-relativistic stellar wind. We compute the corresponding streamlines out of the simulation results, and calculate the injection, evolution, and emission of NT particles accelerated in the jet shock, focusing on electrons or $e^\pm$-pairs. Several cases are explored, considering different jet-star interaction locations, magnetic fields and observer lines of sight. The jet luminosity and star properties are fixed, but the results are easily scalable under changes of these parameters. Individual jet-star interactions produce synchrotron and inverse Compton (IC) emission that peaks from X-rays to MeV energies (depending on the magnetic field), and at $\sim 100-1000$ GeV (depending on the stellar type), respectively. The radiation spectrum is hard in the scenarios explored here due to non-radiative cooling dominance, as low-energy electrons are efficiently advected even under relatively high magnetic fields. Interactions of jets with cold stars lead to an even harder IC spectrum because of the Klein-Nishina effect in the cross-section. Doppler boosting has a strong impact on the observer luminosity. The emission levels for individual interactions found here are in the line of previous, more approximate, estimates, strengthening the hypothesis that collective jet-star interactions could significantly contribute at high energies under efficient particle acceleration.
description: 13 pages, 2 tables, 14 figures. Language corrections mostly. Matches the published version in A&A 591, A15 (2016)
Tuning of Nuclear Spectroscopic Telescope Array (NuSTAR) Application Specific Integrated Circuits (ASICs) to improve low energy threshold of future Hard X-ray Imaging Detectors
Creators: name: Violette, Daniel P.
name: Allen, Branden
name: Hong, Jaesub
name: Miyasaka, Hiromasa
name: Grindlay, Jonathan
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Detector commanding, processing and readout of spaceborne instrumentation is often accomplished with Application Specific Integrated Circuits (ASICs). The ASIC designed for the Nuclear Spectroscopic Telescope Array (NuSTAR) mission (NuASIC) enables future tiled CdZnTe (CZT) detector array readout for x-ray detectors such as the High Resolution Energetic X-ray Imager (HREXI). Modified NuASIC gain settings have been implemented for HREXI's broader targeted imaging energy range (3-300 keV) compared to NuSTAR (2-79 keV), which may require updated NuASIC internal parameters for optimal energy resolution. To reach HREXI's targeted low energy threshold, we have also enabled the NuASIC's "Charge Pump Mode" (CPM), which introduces an additional tuning parameter. In this paper, we describe the mechanics of the NuASIC's adjustable parameters and use our recently developed ASIC Test Stand (ATS) to probe a "bare" NuASIC using its internal test pulser. We record the effects of parameter tuning on the device's electronics noise and low energy threshold and report the optimal set of parameters for HREXI's updated gain setting. We detail a semi-automated procedure to derive the optimal parameters for each of HREXI's large area, closely tiled NuASIC/CZT detectors to expedite instrument integration.
description: 20 pages, 11 figures, published in JATIS
On Block Cholesky Decomposition for Sparse Inverse Covariance Estimation
Creators: name: Kang, Xiaoning
name: Lian, Jiayi
name: Deng, Xinwei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The modified Cholesky decomposition is popular for inverse covariance estimation, but often needs pre-specification on the full information of variable ordering. In this work, we propose a block Cholesky decomposition (BCD) for estimating inverse covariance matrix under the partial information of variable ordering, in the sense that the variables can be divided into several groups with available ordering among groups, but variables within each group have no orderings. The proposed BCD model provides a unified framework for several existing methods including the modified Cholesky decomposition and the Graphical lasso. By utilizing the partial information on variable ordering, the proposed BCD model guarantees the positive definiteness of the estimated matrix with statistically meaningful interpretation. Theoretical results are established under regularity conditions. Simulation and case studies are conducted to evaluate the proposed BCD model.
title: Upper airway diseases in elderly: pictorial review of MDCT findings
Creators: name: Occhipinti, Mariaelena
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Lung
subject: Thorax
subject: CT
subject: Computer Applications-3D
subject: Neoplasia
subject: Diverticula

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To provide an overview of the possible spectrum of upper airway diseases (UAD) in the elderly. To illustrate the imaging findings helpful in differential diagnosis. To emphasize the role of imaging modalities in diagnosis, staging and follow-up of...
Probing the hard and intermediate states of X-ray binaries using short time-scale variability
Creators: name: Skipper, Chris J.
name: McHardy, Ian M.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Below an accretion rate of approximately a few per cent of the Eddington accretion rate, X-ray binary systems are not usually found in the soft spectral state. However, at accretion rates a factor of a few lower still, in the hard state, there is another spectral transition which is well observed but not well understood. Below ~0.5-1 per cent of the Eddington accretion rate (m_crit), the spectral index hardens with increasing accretion rate, but above m_crit, although still in the hard state, the spectral index softens with increasing accretion rate. Here we use a combination of X-ray spectral fitting and a study of short time-scale spectral variability to examine the behaviour of three well-known X-ray binaries: Cygnus X-1, GX 339-4 and XTE J1118+480. In Cygnus X-1 we find separate hard and soft continuum components, and show using root-mean-square (rms) spectra that the soft component dominates the variability. The spectral transition at m_crit is clearly present in the hard-state hardness-intensity diagrams of Cygnus X-1. Above m_crit, GX 339-4 shows similar softer-when-brighter behaviour at both long and short time-scales. Similarly, XTE J1118+480, which remains well below m_crit, is harder-when-brighter behaviour on all time-scales. We interpret these results in terms of two continuum components: a hard power-law which dominates the spectra when the accretion rate is low, probably arising from Comptonisation of cyclo-synchrotron photons from the corona, and a soft power-law which dominates at higher accretion rates, arising from Comptonisation of seed photons from the accretion disc.
description: 18 pages, 13 figures; accepted for publication in Monthly Notices of the Royal Astronomical Society, 2016 February 22
Quantum dynamics of relativistic bosons through nonminimal vector square potentials
Creators: name: de Oliveira, Luiz P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The dynamics of relativistic (scalar and vector) bosons through nonminimal vector square (well and barrier) potentials is studied in the Duffin-Kemmer-Petiau (DKP) formalism. We show that the problem can be mapped in effective Schrodinger equations for a component of the DKP spinor. An oscillatory transmission coefficient is found and there is total reflection. Additionally, the energy spectrum of bound states is obtained and reveals the Schiff-Snyder-Weinberg effect, for specific conditions the potential lodges bound states of particles and antiparticles.
description: 8 pages, 3 figures (edited), Version submitted to Annals of Physics
Babcock-Leighton solar dynamo: the role of downward pumping and the equatorward propagation of activity
Creators: name: Karak, Bidya Binay
name: Cameron, Robert
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The key elements of the Babcock-Leighton dynamos are the generation of poloidal field through decay and dispersal of tilted bipolar active regions and the generation of toroidal field through the observed differential rotation. These models are traditionally known as flux transport dynamo models as the equatorward propagations of the butterfly wings in these models are produced due to an equatorward flow at the bottom of the convection zone. Here we investigate the role of downward magnetic pumping near the surface using a kinematic Babcock-Leighton model. We find that the pumping causes the poloidal field to become predominately radial in the near-surface shear layer, which allows the negative radial shear to effectively act on the radial field to produce a toroidal field. We observe a clear equatorward migration of the toroidal field at low latitudes as a consequence of the dynamo wave even when there is no meridional flow in the deep convection zone. Both the dynamo wave and the flux transport type solutions are thus able to reproduce some of the observed features of the solar cycle, including the 11-year periodicity. The main difference between the two types of solutions is the strength of the Babcock-Leighton source required to produce the dynamo action. A second consequence of the magnetic pumping is that it suppresses the diffusion of fields through the surface, which helps to allow an 11-year cycle at (moderately) larger values of magnetic diffusivity than have previously been used.
description: Accepted for publication in ApJ; minor revision and a new figure added in this version!
title: Interesting sonographic features in pediatric scalp “bumps and lumps”
Creators: name: Nakamura, Olavo Kyosen
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Trauma
subject: Parasites
subject: Haemangioma
subject: Education
subject: Ultrasound-Spectral Doppler
subject: Ultrasound-Colour Doppler
subject: Ultrasound
subject: Soft tissues / Skin
subject: Paediatric
subject: Head and neck

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To present the imaging features of sonographic exams of interesting pediatric scalp lesions followed by a brief discussion about the pathology and their differential diagnosis...
Confluent Heun functions and the physics of black holes: resonant frequencies, Hawking radiation and scattering of scalar waves
Creators: name: Vieira, H. S.
name: Bezerra, V. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We apply the confluent Heun functions to study the resonant frequencies (quasispectrum), the Hawking radiation and the scattering process of scalar waves, in a class of spacetimes, namely, the ones generated by a Kerr-Newman-Kasuya spacetime (dyon black hole) and a Reissner-Nordström black hole surrounded by a magnetic field (Ernst spacetime). In both spacetimes, the solutions for the angular and radial parts of the corresponding Klein-Gordon equations are obtained exactly, for massive and massless fields, respectively. The special cases of Kerr and Schwarzschild black holes are analyzed and the solutions obtained, as well as in the case of a Schwarzschild black hole surrounded by a magnetic field. In all these special situations, the resonant frequencies, Hawking radiation and scattering are studied.
description: 18 pages. This paper was unified and published with arXiv:1603.02240
Memristive Sisyphus circuit for clock signal generation
Creators: name: Pershin, Yuriy V.
name: Shevchenko, Sergey N.
name: Nori, Franco
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Frequency generators are widely used in electronics. Here, we report the design and experimental realization of a memristive frequency generator employing a unique combination of only digital logic gates, a single-supply voltage and a realistic threshold-type memristive device. In our circuit, the oscillator frequency and duty cycle are defined by the switching characteristics of the memristive device and external resistors. We demonstrate the circuit operation both experimentally, using a memristor emulator, and theoretically, using a model memristive device with threshold. Importantly, nanoscale realizations of memristive devices offer small-size alternatives to conventional quartz-based oscillators. In addition, the suggested approach can be used for mimicking some cyclic (Sisyphus) processes in nature, such as "dripping ants" or drops from leaky faucets.
description: 7 pages, 4 figures
title: Role of digital breast tomosynthesis (DBT) in evaluation of radial scars (RS)
Creators: name: Luparia, Andrea
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Mammography
subject: Diagnostic procedure
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Radial scar (RS), also known as complex sclerosing lesion, is a well recognized radiological and pathological entity. It is a benign breast lesion seen histologically as a radially symmetric finding characterized by a fibro-elastotic core which may...
Constraining minimal anomaly free $\mathrm{U}(1)$ extensions of the Standard Model
Creators: name: Ekstedt, Andreas
name: Enberg, Rikard
name: Ingelman, Gunnar
name: Löfgren, Johan
name: Mandal, Tanumoy
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a class of minimal anomaly free $\mathrm{U}(1)$ extensions of the Standard Model with three generations of right-handed neutrinos and a complex scalar. Using electroweak precision constraints, new 13 TeV LHC data, and considering theoretical limitations such as perturbativity, we show that it is possible to constrain a wide class of models. By classifying these models with a single parameter, $κ$, we can put a model independent upper bound on the new $\mathrm{U}(1)$ gauge coupling $g_z$. We find that the new dilepton data puts strong bounds on the parameters, especially in the mass region $M_{Z'}\lesssim 3~ \mathrm{TeV}$.
description: 23 pages, 4 figures. Modified model parametrization, exclusion limits with new data
Data processing for the sandwiched Rényi divergence: a condition for equality
Creators: name: Leditzky, Felix
name: Rouzé, Cambyse
name: Datta, Nilanjana
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The $α$-sandwiched Rényi divergence satisfies the data processing inequality, i.e. monotonicity under quantum operations, for $α\geq 1/2$. In this article, we derive a necessary and sufficient algebraic condition for equality in the data processing inequality for the $α$-sandwiched Rényi divergence for all $α\geq 1/2$. For the range $α\in [1/2,1)$, our result provides the only condition for equality obtained thus far. To prove our result, we first consider the special case of partial trace, and derive a condition for equality based on the original proof of the data processing inequality by Frank and Lieb [J. Math. Phys. 54.12 (2013), p. 122201] using a strict convexity/concavity argument. We then generalize to arbitrary quantum operations via the Stinespring Representation Theorem. As applications of our condition for equality in the data processing inequality, we deduce conditions for equality in various entropic inequalities. We formulate a Rényi version of the Araki-Lieb inequality and analyze the case of equality, generalizing a result by Carlen and Lieb [Lett. Math. Phys. 101.1 (2012), pp. 1-11] about equality in the original Araki-Lieb inequality. Furthermore, we prove a general lower bound on a Rényi version of the entanglement of formation, and observe that it is attained by states saturating the Rényi version of the Araki-Lieb inequality. Finally, we prove that the known upper bound on the entanglement fidelity in terms of the usual fidelity is saturated only by pure states.
description: 17 pages, no figures, comments welcome! v4: published version in Letters in Mathematical Physics
Mirror Reflections of a Black Hole
Creators: name: Good, Michael R. R.
name: Anderson, Paul R.
name: Evans, Charles R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: An exact correspondence between a black hole and an accelerating mirror is demonstrated. It is shown that for a massless minimally coupled scalar field the same Bogolubov coefficients connecting the "in" and "out" states occur for a (1+1)D flat spacetime with a particular perfectly reflecting accelerating boundary trajectory and a (1+1)D curved spacetime in which a null shell collapses to form a black hole. Generalization of the latter to the (3+1)D case is discussed. The spectral dynamics is computed in both (1+1)-dimensional spacetimes along with the energy flux in the spacetime with a mirror. It is shown that the approach to equilibrium is monotonic, asymmetric in terms of the rate, and there is a specific time which characterizes the system when it is the most out-of-equilibrium.
description: 25 pages, 7 figures
title: What do we know about nephroblastomatosis? Imaging in diagnosis and follow-up.
Creators: name: Serrano Burgos, Carlos
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neoplasia
subject: Genetic defects
subject: Structured reporting
subject: Image compression
subject: Ultrasound
subject: MR
subject: CT
subject: Kidney
subject: Paediatric

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To review the genetics, histology, and imaging of nephroblastomatosis in its diverse clinical presentations. To review the relationship between nephroblastomatosis and Wilms tumor. To discuss the current roles of different imaging techniques in the...
Large-scale outflows in luminous QSOs revisited: The impact of beam smearing on AGN feedback efficiencies
Creators: name: Husemann, B.
name: Scharwächter, J.
name: Bennert, V. N.
name: Mainieri, V.
name: Woo, J. -H.
name: Kakkad, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: [Abridged] Enormous observational efforts have been made to constrain the energetics of AGN feedback by mapping the kinematics of the ionized gas on kpc scale. We study how the observed kinematics and inferred energetics are affected by beam smearing of a bright unresolved NLR due to seeing. We analyse IFU spectroscopy of a sample of twelve QSOs initially presented by Liu et al. (2014). The PSF for the observations is directly obtained from the light distribution of the broad Hb line component. We are able to compare the ionized gas kinematics and derived energetics of the total, spatially extended, and unresolved [OIII] emission. We find that the spatially resolved [OIII] line width on kpc scales is significantly narrower than the one before PSF deblending. The ENLRs appear offset from the QSO position or more elongated which can be interpreted in favour of a conical outflow on large scales while a spherical geometry cannot be excluded for the unresolved NLR. We find that the kinetic power at 5kpc distance from the spherical model by Liu et al. (2013) is reduced by two magnitudes for a conical outflow and one magnitude for the unresolved NLR after PSF deblending. This reduced kinetic power corresponds to 0.01-0.1% of the bolometric AGN luminosity. This is smaller than the 5-10% feedback efficiency required by some simulations to reproduce the massive galaxy population. The injected momentum fluxes are close or below the simple radiation-pressure limit Lbol/c for the conical outflow model for the NLR and ENLR when beam smearing is considered. IFU spectroscopy is a powerful tool to investigate the energetics of AGN outflows, but the impact of beam smearing has to be taken into account. For the majority of observations in the literature, this has not been addressed carefully so that the incidence and energetics of presumed kpc-scale AGN-driven outflows still remain an unsolved issue.
description: 22 pages, 10 figures, 3 tables, accepted for publication in A&A
Raman and IR spectra of water under graphene nanoconfinement at ambient and extreme pressure-temperature conditions: a first-principles study
Creators: name: Hou, Rui
name: Li, Chu
name: Pan, Ding
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The nanoconfinement of water can result in dramatic differences in its physical and chemical properties compared to bulk water. However, a detailed molecular-level understanding of these properties is still lacking. Vibrational spectroscopy, such as Raman and infrared, is a popular experimental tool for studying the structure and dynamics of water, and is often complemented by atomistic simulations to interpret experimental spectra, but there have been few theoretical spectroscopy studies of nanoconfined water using first-principles methods at ambient conditions, let alone under extreme pressure-temperature conditions. Here, we computed the Raman and IR spectra of water nanoconfined by graphene at ambient and extreme pressure-temperature conditions using ab intio simulations. Our results revealed alterations in the Raman stretching and low-frequency bands due to the graphene confinement. We also found spectroscopic evidence indicating that nanoconfinement considerably changes the tetrahedral hydrogen bond network, which is typically found in bulk water. Furthermore, we observed an unusual bending band in the Raman spectrum at ~10 GPa and 1000 K, which is attributed to the unique molecular structure of confined ionic water. Additionally, we found that at ~20 GPa and 1000 K, confined water transformed into a superionic fluid, making it challenging to identify the IR stretching band. Finally, we computed the ionic conductivity of confined water in the ionic and superionic phases. Our results highlight the efficacy of Raman and IR spectroscopy in studying the structure and dynamics of nanoconfined water in a large pressure-temperature range. Our predicted Raman and IR spectra can serve as a valuable guide for future experiments.
title: Clinical application of 3.0 T proton MR spectroscopy in evaluation of pancreatic diseases
Creators: name: Su, Tianhao
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Pancreas
subject: MR-Spectroscopy
subject: MR

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1.Pancreatic diseases (i.e. acute pancreatitis, chronic pancreatitis and pancreatic cancer) are common. However, differentiating malignant from others could be difficult sometimes by existing methods[1-2]. It would be beneficial to devise new...
Inner amenability, property Gamma, McDuff II_1 factors and stable equivalence relations
Creators: name: Deprez, Tobe
name: Vaes, Stefaan
Publisher: name: arXiv
Year: 2016
Subjects: subject: Operator Algebras (math.OA)
subject: Dynamical Systems (math.DS)
subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We say that a countable group $G$ is McDuff if it admits a free ergodic probability measure preserving action such that the crossed product is a McDuff II_1 factor. Similarly, $G$ is said to be stable if it admits such an action with the orbit equivalence relation being stable. The McDuff property, stability, inner amenability and property Gamma are subtly related and several implications and non implications were obtained in [Ef73,JS85,Va09,Ki12a,Ki12b]. We complete the picture with the remaining implications and counterexamples.
description: v2: minor changes, final version to appear in Ergodic Theory and Dynamical Systems
Strong Mechanical Squeezing and its Detection
Creators: name: Agarwal, G. S.
name: Huang, Sumei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report an efficient mechanism to generate a squeezed state of a mechanical mirror in an optomechanical system. We use especially tuned parametric amplifier (PA) inside the cavity and the parametric photon phonon processes to transfer quantum squeezing from photons to phonons with almost 100\% efficiency. We get 50\% squeezing of the mechanical mirror which is limited by the PA. We present analytical results for the mechanical squeezing thus enabling one to understand the dependence of squeezing on system parameters like gain of PA, cooperativity, temperature. As in cooling experiments the detrimental effects of mirror's Brownian and zero point noises are strongly suppressed by the pumping power. By judicious choice of the phases, the cavity output is squeezed only if the mirror is squeezed thus providing us a direct measure of the mirror's squeezing. Further considerable larger squeezing of the mirror can be obtained by adding the known feedback techniques.
description: 11 pages, 9 figures
High Resolution Chronology of the Human Occupation South of Choapa Basin (31°34’ -32° S), Chile
Creators: name: Méndez, César
name: Troncoso, Andrés
name: Delaunay, Amalia Nuevo
name: Maldonado, Antonio
name: Pascual, Daniel
Publisher: name: The 82nd Annual Meeting of the Society for American Archaeology
Year: 2018
Subjects: subject: South America: Andes
valueUri: https://core.tdar.org/browse/geographic-keyword/83864/south-america-andes
subject: Archaic
valueUri: https://core.tdar.org/browse/culture-keyword/8/archaic
subject: Dating Sample
valueUri: https://core.tdar.org/browse/material-type/3/dating-sample
subject: Dating Techniques: Radiometric
valueUri: https://core.tdar.org/browse/other-keyword/159875/dating-techniques-radiometric
subject: Chronology
valueUri: https://core.tdar.org/browse/other-keyword/3317/chronology
subject: Lanscape use
valueUri: https://core.tdar.org/browse/other-keyword/160026/lanscape-use
subject: Environment Research
valueUri: https://core.tdar.org/browse/investigation-type/13/environment-research
subject: Archaeological Overview
valueUri: https://core.tdar.org/browse/investigation-type/1/archaeological-overview
subject: Data Recovery / Excavation
valueUri: https://core.tdar.org/browse/investigation-type/5/data-recovery-excavation
subject: Methodology, Theory, or Synthesis
valueUri: https://core.tdar.org/browse/investigation-type/6/methodology-theory-or-synthesis
subject: Records Search / Inventory Checking
valueUri: https://core.tdar.org/browse/investigation-type/8/records-search-inventory-checking

description: The area south of Choapa basin in Chile has long been subjected to archaeological research through scientific as well as cultural research management projects. Surveys, excavations, and sampling over these roughly 5000 km2 area has yielded over 370 radiocarbon dates plus over 120 thermoluminiscence dates (almost 0,1 dates/km2). Dates range from 30000 cal BP to modern, but the human occupation is constrained in the last 13,000 years. Such chronometric resolution allows discussing the intensity of occupation of the different environments and landscapes over time. Also, it provides means to compare the human chronological signature with the available local paleoclimatic data to discuss if aridity, and therefore shortages in resources, exerted pressure over the human groups inhabiting this area. The distribution of dates in not constant, but rather fluctuating and even showing certain periods devoid of chronological signature. It also exhibits a significant increase in the last millennia coupled with a higher intensity of occupations as suggested by the abundance of late age archaeological sites. The high resolution of the chronology of the southern Choapa basin contrasts with that of neighbor areas that may have alternative time distributions as suggested by preliminary data gathered over the last years. FONDECYT #1170408, #1140837.
title: Radiology findings dealing with the identification of central sulcus based both in the cerebral sulcus layout and white matter pattern
Creators: name: Sanchez Martin, Ana
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: Cardiac
subject: CT
subject: MR
subject: Imaging sequences
subject: Comparative studies
subject: Diagnostic procedure
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Establish the localitation of central sulcus at CT and MRI based both in the cerebral sulcus layout and white matter pattern. We study the diferent anatomy marks which are useful for the identication of central...
Value creation in start-up discourse: linking pitch and venture through logics of justification
Creators: name: Varas, Germán
name: Sabaj, Omar
name: Spinuzzi, Clay
name: Fuentes, Miguel
name: Gerard, Valentin
name: Cabezas, Paula
Publisher: name: International Journal of Business Communication
Year: 2023
Subjects: entrepreneurship
pitch
orders of worth
start-up discourse
accelerators

description: The final, published version of this article can be found at: https://doi.org/10.1177/23294884221147020
description: ORCID information: Germán Varas: 0000-0001-5426-9839; Omar Sabaj: 0000-0002-7075-9384; Clay Spinuzzi: 0000-0002-9629-6189; Miguel Fuentes: 0000-0003-0063-7688; Valentine Gerard: 0000-0002-1378-8947; Paula Cabezas: 0000-0003-2257-1907
description: How do start-ups create value through the language of their business pitches? In this article, we investigate that question by identifying the logics of justification they use, traditionally conceptualised as orders of worth. In this study of short written pitches in a six-month Chilean accelerator program, we describe how we detected logics of justification through pitch language, and we identify (a) co-occurrence patterns among logics of justification, (b) associations between logics of justification and industry sectors, and (c) associations between logics and a firm's customer segment (B2B, B2C). This study provides unique insights into how start-ups sometimes justify innovations by using specific patterns of language depending on a venture's features.
Green, J.B. (Hg.), Hearing the New Testament
Creators: name: Stenschke, Christoph W.
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1821138910
description: Jahrbuch für evangelikale Theologie, V. 10 (1996): Jahrbuch für evangelikale Theologie, Band 10
Simulating frustrated magnetism with spinor Bose gases
Creators: name: Debelhoir, T.
name: Dupuis, N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Although there is a broad consensus on the fact that critical behavior in stacked triangular Heisenberg antiferromagnets --an example of frustrated magnets with competing interactions-- is described by a Landau-Ginzburg-Wilson Hamiltonian with O(3)$\times$O(2) symmetry, the nature of the phase transition in three dimensions is still debated. We show that spin-one Bose gases provide us with a simulator of the O(3)$\times$O(2) model. Using a renormalization-group approach, we argue that the transition is weakly first order and shows pseudoscaling behavior, and give estimates of the pseudocritical exponent $ν$ in $^{87}$Rb, $^{41}$K and $^7$Li atom gases which can be tested experimentally.
description: v1) 6 pages, 4 figures, v2) revised version
title: Plain radiographic examination of the paediatric elbow: Normal variants and traumatic features
Creators: name: Seah, May-ai
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Paediatric
subject: Musculoskeletal joint
subject: Conventional radiography
subject: Diagnostic procedure
subject: Congenital
subject: Trauma
subject: Acute

description: Learning objectives Background Imaging findings OR Procedure details Conclusion Personal Information References
description: Learning objectives: To understand the normal radiographic development of the elbow. To appreciate normal variants and alignments. To demonstrate traumatic features on the plain...
Practical Guide to Supporting Diversity in Research Environments
Creators: name: Science Europe
name: Morris, James
Publisher: name: Zenodo
Year: 2024
Subjects: Equality
Diversity
Inclusion
EDI

description: Science Europe’s ‘Practical Guide to Supporting Diversity in Research Environments’ highlights key findings from a membership survey conducted in 2023, showcases good practices, and provides practical recommendations across topics such as positive action measures and the collection and use of diversity data. 

The guide also reflects upon the challenges that research organisations face whilst trying to foster fair and inclusive research cultures. This work is part of Science Europe’s wider commitment to embed our shared values in the policies and practices implemented across Europe, all in support of high-quality research, and attractive and fair research environments.

Our activities on Equality, Diversity, and Inclusion are conducted as part of Science Europe’s strategic focus on research culture.