cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Observations of metals in the $z\approx3.5$ intergalactic medium and comparison to the EAGLE simulations
Creators: name: Turner, Monica L.
name: Schaye, Joop
name: Crain, Robert A.
name: Theuns, Tom
name: Wendt, Martin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We study the $z\approx3.5$ intergalactic medium (IGM) by comparing new, high-quality absorption spectra of eight QSOs with $\langle z_{\rm QSO} \rangle=3.75$, to virtual observations of the EAGLE cosmological hydrodynamical simulations. We employ the pixel optical depth method and uncover strong correlations between various combinations of HI, CIII, CIV, SiIII, SiIV, and OVI. We find good agreement between many of the simulated and observed correlations, including OVI(HI). However, the observed median optical depths for the CIV(HI) and SiIV(HI) relations are higher than those measured from the mock spectra. The discrepancy increases from up to $\approx0.1$ dex at $τ_{\rm HI}=1$ to $\approx1$ dex at $τ_{\rm HI}=10^2$, where we are likely probing dense regions at small galactocentric distances. As possible solutions, we invoke (a) models of ionizing radiation softened above 4 Ryd to account for delayed completion of HeII reionization; (b) simulations run at a higher resolution; (c) the inclusion of additional line broadening due to unresolved turbulence; and (d) increased elemental abundancess; however, none of these factors can fully explain the observed differences. Enhanced photoionization of HI by local sources, which was not modelled, could offer a solution. However, the much better agreement with the observed OVI(HI) relation, which we find probes a hot and likely collisionally-ionized gas phase, indicates that the simulations are not in tension with the hot phase of the IGM, and suggests that the simulated outflows may entrain insufficient cool gas.
description: Accepted for publication in MNRAS, 16 pages, 7 figures (not including appendices)
Eine neue Bearbeitung von Abaelards "Introductio" und der Summa sententiarum
Creators: name: Weisweiler, Heinrich
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 9 Nr. 3 (1934): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 9, Heft 3
title: Percutaneous MR-guided cryoablation of prostate cancer: technical feasibility and preliminary results
Creators: name: Tsoumakidou, Georgia
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Interventional non-vascular
subject: Pelvis
subject: Urinary Tract / Bladder
subject: MR
subject: Ablation procedures

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Prostate cancer is the most prevalent cancer in men and is in the top three leading causes of cancer death in American and European men. According to the American Urological Associations’ Best Practice Statement (2008), prostate cryosurgery is a...
title: Usefulness of CT angiography of celiac axis prior to pancreatico-duodenectomy
Creators: name: Belgrano, Manuel
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Vascular
subject: Pancreas
subject: Oncology
subject: CT
subject: Surgery
subject: Diagnostic procedure
subject: Neoplasia

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: The pancreaticoduodenectomy (PD) is the standard surgical approach for both benign and malignant lesions of the pancreatic head and the periampullary region. This is a surgery burdened by considerable technical difficulties and postoperative...
Massive Vector Particles Tunneling From Noncommutative Charged Black Holes and its GUP-corrected Thermodynamics
Creators: name: Övgün, Ali
name: Jusufi, Kimet
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: In this paper, we investigate the tunneling process of charged massive bosons $W^{\pm }$ (spin-1 particles) from noncommutative charged black holes such as charged RN black holes and charged BTZ black holes. By applying the WKB approximation and by using the Hamilton-Jacobi equation we derive the tunneling rate and the corresponding Hawking temperature for those black holes configuration. Furthermore, we show the quantum gravity effects using the GUP on the Hawking temperature for the noncommutative RN black holes. The tunneling rate shows that the radiation deviates from pure thermality and is consistent with an underlying unitary theory.
description: 10 pages, to appear in EPJ Plus
The free energy requirements of biological organisms; implications for evolution
Creators: name: Wolpert, David H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Biological Physics (physics.bio-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Recent advances in nonequilibrium statistical physics have provided unprecedented insight into the thermodynamics of dynamic processes. The author recently used these advances to extend Landauer's semi-formal reasoning concerning the thermodynamics of bit erasure, to derive the minimal free energy required to implement an arbitrary computation. Here, I extend this analysis, deriving the minimal free energy required by an organism to run a given (stochastic) map $π$ from its sensor inputs to its actuator outputs. I use this result to calculate the input-output map $π$ of an organism that optimally trades off the free energy needed to run $π$ with the phenotypic fitness that results from implementing $π$. I end with a general discussion of the limits imposed on the rate of the terrestrial biosphere's information processing by the flux of sunlight on the Earth.
description: 19 pages, 0 figures, presented at 2015 NIMBIoS workshop on "Information and entropy in biological systems"
Zur Lehre des hl. Thomas über die Kausalität der Sakramente
Creators: name: Gierens, Michael
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 9 Nr. 3 (1934): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 9, Heft 3
Anatomy of Exotic Higgs Decays in 2HDM
Creators: name: Kling, Felix
name: No, Jose Miguel
name: Su, Shufang
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Large mass splittings between new scalars in two-Higgs-doublet models (2HDM) open a key avenue to search for these new states via exotic heavy Higgs decays. We discuss in detail the different search channels for these new scalars at the LHC in the presence of a sizable mass splitting, i.e. a hierarchical 2HDM scenario, taking into account the theoretical and experimental constraints. We provide benchmark planes to exploit the complementarity among these searches, analyzing their potential to probe the hierarchical 2HDM parameter space during LHC Run 2.
A unified model of grain alignment: radiative alignment of interstellar grains with magnetic inclusions
Creators: name: Hoang, Thiem
name: Lazarian, A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The radiative torque (RAT) alignment of interstellar grains with ordinary paramagnetic susceptibilities has been supported by earlier studies. The alignment of such grains depends on the so-called RAT parameter $q^{\max}$ that is determined by the grain shape. In this paper, we elaborate our model of RAT alignment for grains with enhanced magnetic susceptibility due to iron inclusions, such that RAT alignment is magnetically enhanced for which we term MRAT mechanism. Such grains can get aligned with high angular momentum at the so-called high-J attractor points, achieving a high degree of alignment. Using our analytical model of RATs we derive the critical value of the magnetic relaxation parameter $δ_{m}$ to produce high-J attractor points as functions of $q^{\max}$ and the anisotropic radiation angle relative to the magnetic field $ψ$. We find that if about $10\%$ of total iron abundance present in silicate grains are forming iron clusters, it is sufficient to produce high-J attractor points for all reasonable values of $q^{\max}$. To calculate the degree of grain alignment, we carry out numerical simulations of MRAT alignment by including stochastic excitations from gas collisions and magnetic fluctuations. We show that large grains can achieve perfect alignment when the high-J attractor point is present, regardless of the values of $q^{\max}$. Our obtained results pave the way for physical modeling of polarized thermal dust emission as well as magnetic dipole emission. We also find that millimeter-sized grains in accretion disks may be aligned with the magnetic field if they are incorporated with iron nanoparticles.
description: 21 pages, 10 figures, accepted to ApJ, Sec 8.1 revised
title: A scoring system for tomosynthesis in pulmonary cystic fibrosis
Creators: name: Vult von Steyern, Kristina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Lung
subject: Digital radiography

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Tomosynthesis (digital tomography) has recently appeared as an interesting alternative to radiography and computed tomography in the evaluation of the lungs in cystic fibrosis (CF), since pulmonary CF changes are better visualized with tomosynthesis...
title: Role of breast tomosynthesis in the morphological analysis of breast lesions
Creators: name: Raghavan, Bagyam
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Breast
subject: Mammography
subject: Technology assessment
subject: Tissue characterisation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: PURPOSE 1. To assess the role of Breast Tomosynthesis (by 3D Combined View) versus 2D Full Field Digital Mammogram alone in the morphological analysis of breast lesions. 2. To evaluate the potential role of Tomosynthesis in BIRADS Categorisation and...
Deformations of spectral triples and their quantum isometry groups via monoidal equivalences
Creators: name: De Sadeleer, Liebrecht
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mathematical Physics (math-ph)
subject: Operator Algebras (math.OA)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In this paper, we propose a new procedure to deform spectral triples and their quantum isometry groups. The deformation data are a spectral triple $(\mathcal A,\mathcal H, D)$, a compact quantum group $\mathbb G$ acting algebraically and by orientation-preserving isometries on $(\mathcal A,\mathcal H,D)$ and a unitary fiber functor $ψ$ on $\mathbb G$. The deformation procedure is a genuine generalization of the cocycle deformation of Goswami and Joardar.
description: 36 pages. We improved the first version substantially with a section on the deformation of the quantum isometry group. Notational and other errors are corrected
title: Dual energy CT for detection of contrast leakage within high-density hematoma in patients with intracranial hemorrhage: iodine images versus combined images
Creators: name: Watanabe, Yoshiyuki
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Neuroradiology brain
subject: CT
subject: CT-Angiography
subject: Contrast agent-intravenous
subject: Computer Applications-Detection, diagnosis
subject: Haemorrhage

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: 1. The presence of active contrast extravasation into the intracerebral hematoma (ICH) at the time of CT angiography has been associated with an increased risk of hematoma expansion and mortality in patients with ICH. 2. It is reported that...
title: CT assessment of sarcopenia in patients with pancreatic cancer and chronic pancreatitis
Creators: name: Kasatkina, Ekaterina
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Pancreas
subject: Oncology
subject: CT
subject: Computer Applications-General
subject: Metabolic disorders

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Skeletal muscle loss, or sarcopenia, is associated with many clinical conditions, such as cancer, diabetes, acquired immune deficiency syndrome, burns, chronic obstructive pulmonary disease, chronic heart failure, chronic renal failure, rheumatoid...
ALMA Observations of Circumstellar Disks in the Upper Scorpius OB Association
Creators: name: Barenfeld, Scott A.
name: Carpenter, John M.
name: Ricci, Luca
name: Isella, Andrea
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present ALMA observations of 106 G-, K-, and M-type stars in the Upper Scorpius OB Association hosting circumstellar disks. With these data, we measure the 0.88 mm continuum and $^{12}$CO $J$ = 3$-$2 line fluxes of disks around low-mass ($0.14-1.66$ $M_{\odot}$) stars at an age of 5-11 Myr. Of the 75 primordial disks in the sample, 53 are detected in the dust continuum and 26 in CO. Of the 31 disks classified as debris/evolved transitional disks, 5 are detected in the continuum and none in CO. The lack of CO emission in approximately half of the disks with detected continuum emission can be explained if CO is optically thick but has a compact emitting area ($\lesssim 40$ au), or if the CO is heavily depleted by a factor of at least $\sim1000$ relative to interstellar medium abundances and is optically thin. The continuum measurements are used to estimate the dust mass of the disks. We find a correlation between disk dust mass and stellar host mass consistent with a power-law relation of $M_{\mathrm{dust}}\propto M_*^{1.67\pm0.37}$. Disk dust masses in Upper Sco are compared to those measured in the younger Taurus star-forming region to constrain the evolution of disk dust mass. We find that the difference in the mean of $\log(M_{\mathrm{dust}}/M_*)$ between Taurus and Upper Sco is $0.64\pm0.09$, such that $M_{\mathrm{dust}}/M_*$ is lower in Upper Sco by a factor of $\sim4.5$.
description: 18 pages of text, 11 Figures, 5 Tables. Published in ApJ
Planetary gyre, time-dependent eddies, torsional waves, and equatorial jets at the Earth's core surface
Creators: name: Gillet, N
name: Jault, D
name: Finlay, C. C.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We report a calculation of time-dependent quasi-geostrophic core flows for 1940-2010. Inverting recursively for an ensemble of solutions, we evaluate the main source of uncertainties, namely the model errors arising from interactions between unresolved core surface motions and magnetic fields. Temporal correlations of these uncertainties are accounted for. The covariance matrix for the flow coefficients is also obtained recursively from the dispersion of an ensemble of solutions. Maps of the flow at the core surface show, upon a planetary-scale gyre, time-dependent large-scale eddies at mid-latitudes and vigorous azimuthal jets in the equatorial belt. The stationary part of the flow predominates on all the spatial scales that we can resolve. We retrieve torsional waves that explain the length-of-day changes at 4 to 9.5 years periods. These waves may be triggered by the nonlinear interaction between the magnetic field and sub-decadal non-zonal motions within the fluid outer core. Both the zonal and the more energetic non-zonal interannual motions were particularly intense close to the equator (below 10 degrees latitude) between 1995 and 2010. We revise down the amplitude of the decade fluctuations of the planetary scale circulation and find that electromagnetic core-mantle coupling is not the main mechanism for angular momentum exchanges on decadal time scales if mantle conductance is 3 10 8 S or lower.
Thermal energies of classical and quantum damped oscillators coupled to reservoirs
Creators: name: Philbin, T. G.
name: Anders, J.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider the global thermal state of classical and quantum harmonic oscillators that interact with a reservoir. Ohmic damping of the oscillator can be exactly treated with a 1D scalar field reservoir, whereas general non-Ohmic damping is conveniently treated with a continuum reservoir of harmonic oscillators. Using the diagonalized Hamiltonian of the total system, we calculate a number of thermodynamic quantities for the damped oscillator: the mean force internal energy, mean force free energy, and another internal energy based on the free-oscillator Hamiltonian. The classical mean force energy is equal to that of a free oscillator, for both Ohmic and non-Ohmic damping and no matter how strong the coupling to the reservoir. In contrast, the quantum mean force energy depends on the details of the damping and diverges for strictly Ohmic damping. These results give additional insight into the steady-state thermodynamics of open systems with arbitrarily strong coupling to a reservoir, complementing results for energies derived within dynamical approaches (e.g. master equations) in the weak-coupling regime.
description: 13 pages
Crystal structure, stability and optoelectronic properties of the organic-inorganic wide bandgap perovskite CH3NH3BaI3: Candidate for transparent conductor applications
Creators: name: Kumar, Akash
name: Balasubramaniam, K. R.
name: Kangsabanik, Jiban
name: Vikram
name: Alam, Aftab
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Structural stability, electronic structure and optical properties of CH3NH3BaI3 hybrid perovskite is examined both from theory as well as experiment. Solution-processed thin films of CH3NH3BaI3 exhibited a high band gap of approximately 3.87 eV, which is in excellent agreement with the theoretical estimate of 4 eV. Also, the XRD patterns of the thin films match well with the l-peaks of the simulated pattern obtained from the relaxed unit cell of CH3NH3BaI3, crystallizing in the I4/mcm space group, with lattice parameters, a = 9.30 A, c = 13.94 A. Atom projected density of state and band structure calculations reveal the conduction and valence band edges to be comprised primarily of Barium d-orbitals and Iodine p-orbitals, respectively. The larger band gap of CH3NH3BaI3 compared to CH3NH3PbI3 can be attributed to the lower electro-negativity coupled with the lack of d-orbitals in the valence band of Ba{2+}. A more detailed analysis reveals the excellent chemical and mechanical stability of CH3NH3BaI3 against humidity, unlike its lead halide counterpart, which degrades under such conditions. The dopability of the CH3NH3BaI3 compound e.g. by doping La on the Ba site combined with its structural and mechanical stability under the ambient conditions, suggests this compound as a promising candidate for transparent conductor applications, especially for all perovskite solar cells.
description: 5 figures, 1 table
Dissecting Jets and Missing Energy Searches Using $n$-body Extended Simplified Models
Creators: name: Cohen, Timothy
name: Dolan, Matthew J.
name: Hedri, Sonia El
name: Hirschauer, James
name: Tran, Nhan
name: Whitbeck, Andrew
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Simplified Models are a useful way to characterize new physics scenarios for the LHC. Particle decays are often represented using non-renormalizable operators that involve the minimal number of fields required by symmetries. Generalizing to a wider class of decay operators allows one to model a variety of final states. This approach, which we dub the $n$-body extension of Simplified Models, provides a unifying treatment of the signal phase space resulting from a variety of signals. In this paper, we present the first application of this framework in the context of multijet plus missing energy searches. The main result of this work is a global performance study with the goal of identifying which set of observables yields the best discriminating power against the largest Standard Model backgrounds for a wide range of signal jet multiplicities. Our analysis compares combinations of one, two and three variables, placing emphasis on the enhanced sensitivity gain resulting from non-trivial correlations. Utilizing boosted decision trees, we compare and classify the performance of missing energy, energy scale and energy structure observables. We demonstrate that including an observable from each of these three classes is required to achieve optimal performance. This work additionally serves to establish the utility of $n$-body extended Simplified Models as a diagnostic for unpacking the relative merits of different search strategies, thereby motivating their application to new physics signatures beyond jets and missing energy.
description: 31 + 28 pages, 11 + 10 figures; v2 references added, journal version
Descoqs, Pedro, S. J., Praelectiones Theologiae Naturalis
Creators: name: Brunner, August
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 9 Nr. 2 (1934): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 9, Heft 2
Consensus income distribution
Creators: name: Stark, Oded
name: Falniowski, Fryderyk
name: Jakubek, Marcin
Publisher: name: Universität Tübingen
Year: 2017
Subjects: subject: Soziale Wohlfahrt , Volkswirtschaft
subject: 330
subject: Maximization of social welfare
subject: Isoelastic social welfare functions
subject: Deadweight loss of tax and transfer
subject: Concern at having a low relative income
subject: Social planners’ aversion to inequality

description: In determining the optimal redistribution of a given population’s income, we ask which factor is more important: the social planner’s aversion to inequality, embedded in an isoelastic social welfare function indexed by a parameter alpha, or the individuals’ concern at having a low relative income, indexed by a parameter beta in a utility function that is a convex combination of (absolute) income and low relative income. Assuming that the redistribution comes at a cost (because only a fraction of a taxed income can be transferred), we find that there exists a critical level of beta below which different isoelastic social planners choose different optimal allocations of incomes. However, if beta is above that critical level, all isoelastic social planners choose the same allocation of incomes because they then find that an equal distribution of incomes maximizes social welfare regardless of the magnitude of alpha.
Towards optimized surface $δ$-profiles of nitrogen-vacancy centers activated by helium irradiation in diamond
Creators: name: de Oliveira, F. Favaro
name: Momenzadeh, S. A.
name: Antonov, D.
name: Scharpf, J.
name: Osterkamp, C.
name: Naydenov, B.
name: Jelezko, F.
name: Denisenko, A.
name: Wrachtrup, J.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The negatively-charged nitrogen-vacancy (NV) center in diamond has been shown recently as an excellent sensor for external spins. Nevertheless, their optimum engineering in the near-surface region still requires quantitative knowledge in regard to their activation by vacancy capture during thermal annealing. To this aim, we report on the depth profiles of near-surface helium-induced NV centers (and related helium defects) by step-etching with nanometer resolution. This provides insights into the efficiency of vacancy diffusion and recombination paths concurrent to the formation of NV centers. It was found that the range of efficient formation of NV centers is limited only to approximately $10$ to $15\,$nm (radius) around the initial ion track of irradiating helium atoms. Using this information we demonstrate the fabrication of nanometric-thin ($δ$) profiles of NV centers for sensing external spins at the diamond surface based on a three-step approach, which comprises (i) nitrogen-doped epitaxial CVD diamond overgrowth, (ii) activation of NV centers by low-energy helium irradiation and thermal annealing, and (iii) controlled layer thinning by low-damage plasma etching. Spin coherence times (Hahn echo) ranging up to $50\,$ $μ$s are demonstrated at depths of less than $5\,$nm in material with $1.1\,\%$ of $^{13}$C (depth estimated by spin relaxation (T$_1$) measurements). At the end, the limits of the helium irradiation technique at high ion fluences are also experimentally investigated.
description: 27 pages, 10 figures
title: Παραμετρική σχεδίαση κοσμητικών προϊόντων
title: Parametric design of cosmetic products
Creators: name: Λετσιος Κωνσταντινος
Publisher: name: Technical University of Crete
Year: 2022

description: Η παρούσα μεταπτυχιακή διατριβή περιγράφει την Σχεδίαση με τη Βοήθεια Υπολογιστή, την Προσθετική Κατασκευή και την Παραμετρική Σχεδίαση, και πως αυτές χρησιμοποιούνται για την κατασκευή αντικειμένων και ειδικότερα κοσμητικών προϊόντων.
Παρουσιάζει γενικά και εν συντομία τις παραπάνω τεχνολογίες, καθώς και τη διαδικασία παραγωγής κοσμημάτων και πως οι παραπάνω τεχνολογίες, χρησιμοποιούνται σ’ αυτό τον τομέα.
Ειδικότερα και εκτενέστερα, αναφέρεται στο εργαλείο παραμετρικής σχεδίασης Grasshopper 3D®, στο γραφικό περιβάλλον επικοινωνίας του και στα επιμέρους χαρακτηριστικά του, στα εργαλεία που διαθέτει και τον τρόπο με τον οποίο χρησιμοποιούνται και αναλύει με λεπτομέρεια την ανάπτυξη, τελικά, μιας ενιαίας εφαρμογής παραμετρικής σχεδίασης κοσμημάτων, ειδικότερα δακτυλιδιών.
Στην πράξη, αναπτύχθηκαν επιμέρους εφαρμογές, κάθε μία από τις οποίες εκτελεί μια διαφορετική εργασία, και για τις οποίες περιγράφονται αναλυτικά, τα επιμέρους στοιχεία και δομές που τις απαρτίζουν, η χρήση και ο τρόπος λειτουργίας τους, καθώς και ο τρόπος σκέψης για την εξεύρεση των επιμέρους λύσεων.
Τελικά, οι επιμέρους εφαρμογές ενοποιήθηκαν σε μία ενιαία, η οποία μπορεί να εκτελέσει όλες τις εργασίες με ένα, φιλικό προς το χρήστη, γραφικό περιβάλλον επικοινωνίας.
Leptonic CP phases near the $μ-τ$ symmetric limit
Creators: name: Rivera-Agudelo, Diana C.
name: Pérez-Lorenzana, Abdel
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The neutrino masses and mixings indicated by current neutrino oscillation experiments suggest that the neutrino mass matrix possesses an approximate $μ-τ$ exchange symmetry. In this study, we explore the neutrino parameter space and show that if a small $μ-τ$ symmetry breaking is considered, the Majorana $CP$ phases must be unequal and non-zero independently of the neutrino mass scale. Moreover, a small $μ-τ$ symmetry breaking favors quasi-degenerate masses. We also show that Majorana phases are strongly correlated with the Dirac $CP$ violating phase. Within this framework, we obtain robust predictions for the values of the Majorana phases when the experimental indications for the Dirac $CP$ phase are used.
description: 13 pages, 3 figures. Version accepted for publication in PLB
Tests of Quantum Gravity induced non-locality via opto-mechanical quantum oscillators
Creators: name: Belenchia, Alessio
name: Benincasa, Dionigi M. T.
name: Liberati, Stefano
name: Marin, Francesco
name: Marino, Francesco
name: Ortolan, Antonello
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Several quantum gravity scenarios lead to physics below the Planck scale characterised by nonlocal, Lorentz invariant equations of motion. We show that such non-local effective field theories lead to a modified Schrödinger evolution in the nonrelativistic limit. In particular, the nonlocal evolution of opto-mechanical quantum oscillators is characterised by a spontaneous periodic squeezing that cannot be generated by environmental effects. We discuss constraints on the nonlocality obtained by past experiments, and show how future experiments (already under construction) will either see such effects or otherwise cast severe bounds on the non-locality scale (well beyond the current limits set by the Large Hadron Collider). This paves the way for table top, high precision experiments on massive quantum objects as a promising new avenue for testing some quantum gravity phenomenology.
description: 5 pages, 1 figure. Final version matching the published one in PRL
Nanoscale control of heat and spin conductance in artificial spin chains
Creators: name: Borlenghi, Simone
name: Mahani, M. Reza
name: Delin, Anna
name: Fransson, Jonas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We describe a mechanism to control energy and magnetisation currents in an artificial spin-chain, consisting of an array of Permalloy nano-disks coupled through the magneto-dipolar interaction. The chain is kept out of equilibrium by two thermal baths with different temperatures connected to its ends, which control the current propagation. Transport is enhanced by applying a uniform radio frequency pump field resonating with some of the spin-wave modes of the chain. Moreover, the two currents can be controlled independently by tuning the static field applied on the chain. Thus we describe two effective means for the independent control of coupled currents and the enhancement of thermal and spin-wave conductivity in a realistic magnonics device, suggesting that similar effects could be observed in a large class of nonlinear oscillating systems.
description: 5 pages, 3 figures
Supporting the search for the CEP location with nonlocal PNJL models constrained by Lattice QCD
Creators: name: Contrera, Gustavo A.
name: Grunfeld, A. Gabriela
name: Blaschke, David
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the possible location of the critical endpoint in the QCD phase diagram based on nonlocal covariant PNJL models including a vector interaction channel. The form factors of the covariant interaction are constrained by lattice QCD data for the quark propagator. The comparison of our results for the pressure including the pion contribution and the scaled pressure shift $ΔP / T^4$ vs $T/T_c$ with lattice QCD results shows a better agreement when Lorentzian formfactors for the nonlocal interactions and the wave function renormalization are considered. The strength of the vector coupling is used as a free parameter which influences results at finite baryochemical potential. It is used to adjust the slope of the pseudocritical temperature of the chiral phase transition at low baryochemical potential and the scaled pressure shift accessible in lattice QCD simulations. Our study, albeit presently performed at the meanfield level, supports the very existence of a critical point and favors its location within a region that is accessible in experiments at the NICA accelerator complex.
description: 7 pages, 7 Figures. Version accepted by Eur. Phys. J. A as part of the topical collection: Exploring strongly interacting matter at high densities - NICA White Paper
Lunch&Learn talk on the topic of "Rights Retention Strategy" for the University of Zurich
Creators: name: Mounce, Ross
Publisher: name: Zenodo
Year: 2022
Subjects: open access

description: An invited lunchtime talk, given over Zoom, on the topic of the "Rights Retention Strategy" for the University of Zurich. As invited by the Open Science Services team from the University of Zurich. For more information about the talk series see: https://web.archive.org/web/20220730094048/https://www.ub.uzh.ch/de/unterstuetzung-erhalten/lunch-and-learn.html
Scattering Light by Light at 750 GeV at the LHC
Creators: name: Fichet, Sylvain
name: von Gersdorff, Gero
name: Royon, Christophe
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider the possibility that the diphoton excess at 750 GeV is caused by a new scalar resonance produced in photon fusion. This scenario is parametrised by only one relevant effective couplings and is thus minimal. We show that this setup can reproduce both the production rate and width of the resonance, and is not in conflict with the 8 TeV limits on the diphoton cross section. The scenario also predicts event rates for $WW$, $ZZ$, $Zγ$ final states. We suggest to perform precision measurements by studying light-by-light scattering with intact protons detected in forward detectors. We construct a simple model that shows that the required couplings can be achieved with new vectorlike, uncolored fermions (with a strong Yukawa coupling to the resonance) which may also account for the required width.
description: 6 pages, minor changes, references added. Matches PRD version
The global surface composition of 67P/CG nucleus by Rosetta/VIRTIS. I) Prelanding mission phase
Creators: name: Filacchione, Gianrico
name: Capaccioni, Fabrizio
name: Ciarniello, Mauro
name: Raponi, Andrea
name: Tosi, Federico
name: De Sanctis, Maria Cristina
name: Erard, Stephane
name: Morvan, Dominique Bockelee
name: Leyrat, Cedric
name: Arnold, Gabriele
name: Schmitt, Bernard
name: Quirico, Eric
name: Piccioni, Giuseppe
name: Migliorini, Alessandra
name: Capria, Maria Teresa
name: Palomba, Ernesto
name: Cerroni, Priscilla
name: Longobardo, Andrea
name: Barucci, Antonella
name: Fornasier, Sonia
name: Carlson, Robert W.
name: Jaumann, Ralf
name: Stephan, Katrin
name: Moroz, Lyuba V.
name: Kappel, David
name: Rousseau, Batiste
name: Fonti, Sergio
name: Mancarella, Francesca
name: Despan, Daniela
name: Faure, Mathilde
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: From August to November 2014 the Rosetta orbiter has performed an extensive observation campaign aimed at the characterization of 67P/CG nucleus properties and to the selection of the Philae landing site. The campaign led to the production of a global map of the illuminated portion of 67P/CG nucleus. During this prelanding phase the comet's heliocentric distance decreased from 3.62 to 2.93 AU while Rosetta was orbiting around the nucleus at distances between 100 to 10 km. VIRTIS-M, the Visible and InfraRed Thermal Imaging Spectrometer - Mapping channel (Coradini et al. 2007) onboard the orbiter, has acquired 0.25-5.1 micron hyperspectral data of the entire illuminated surface, e.g. the north hemisphere and the equatorial regions, with spatial resolution between 2.5 and 25 m/pixel. I/F spectra have been corrected for thermal emission removal in the 3.5-5.1 micron range and for surface's photometric response. The resulting reflectance spectra have been used to compute several Cometary Spectral Indicators (CSI): single scattering albedo at 0.55 micron, 0.5-0.8 micron and 1.0-2.5 micron spectral slopes, 3.2 micron organic material and 2.0 micron water ice band parameters (center, depth) with the aim to map their spatial distribution on the surface and to study their temporal variability as the nucleus moved towards the Sun. Indeed, throughout the investigated period, the nucleus surface shows a significant increase of the single scattering albedo along with a decrease of the 0.5-0.8 and 1.0-2.5 micron spectral slopes, indicating a flattening of the reflectance. We attribute the origin of this effect to the partial removal of the dust layer caused by the increased contribution of water sublimation to the gaseous activity as comet crossed the frost-line.
description: 19 Figures, 5 Tables. Accepted for publication in Icarus journal on 29 February 2016
title: Quantitative evaluation of chronic lung disease in infant with thin-section CT
Creators: name: Tsushima, Fumiyasu
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Lung
subject: Paediatric
subject: CT
subject: CT-High Resolution
subject: CT-Quantitative
subject: Computer Applications-3D
subject: Dysplasias

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Several definitions of bronchopulmonary dysplasia (BPD), or chronic lung disease (CLD), have been used since 1967, when Northway et al first described the clinical, radiologic, and pathologic changes seen in infants who had severe respiratory...
Wouters, L., C. SS. R., Manuale Theologiae Moralis
Creators: name: Hürth, Franz
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 9 Nr. 2 (1934): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 9, Heft 2
Interpreting Numerical Measurements in Fixed Topological Sectors
Creators: name: Bietenholz, Wolfgang
name: Czaban, Christopher
name: Dromard, Arthur
name: Gerber, Urs
name: Hofmann, Christoph P.
name: Mejía-Díaz, Héctor
name: Wagner, Marc
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For quantum field theories with topological sectors, Monte Carlo simulations on fine lattices tend to be obstructed by an extremely long auto-correlation time with respect to the topological charge. Then reliable numerical measurements are feasible only within individual sectors. The challenge is to assemble such restricted measurements in a way that leads to a substantiated approximation to the fully fledged result, which would correspond to the correct sampling over the entire set of configurations. We test an approach for such a topological summation, which was suggested by Brower, Chandrasekharan, Negele and Wiese. Under suitable conditions, energy levels and susceptibilities can be obtained to a good accuracy, as we demonstrate for O(N) models, SU(2) Yang-Mills theory, and for the Schwinger model.
description: 43 pages, LaTex, 12 figures, 10 tables, an appendix and some references were added, final version published in Phys. Rev. D
Lattice duality for the compact Kardar-Parisi-Zhang equation
Creators: name: Sieberer, L. M.
name: Wachtel, G.
name: Altman, E.
name: Diehl, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A comprehensive theory of the Kosterlitz-Thouless transition in two-dimensional superfluids in thermal equilibrium can be developed within a dual representation which maps vortices in the superfluid to charges in a Coulomb gas. In this framework, the dissociation of vortex-antivortex pairs at the critical temperature corresponds to the formation of a plasma of free charges. The physics of vortex unbinding in driven-dissipative systems such as fluids of light, on the other hand, is much less understood. Here we make a crucial step to fill this gap by deriving a transformation that maps the compact Kardar-Parisi-Zhang (KPZ) equation, which describes the dynamics of the phase of a driven-dissipative condensate, to a dual electrodynamic theory. The latter is formulated in terms of modified Maxwell equations for the electromagnetic fields and a diffusion equation for the charges representing vortices in the KPZ equation. This mapping utilizes an adaption of the Villain approximation to a generalized Martin-Siggia-Rose functional integral representation of the compact KPZ equation on a lattice.
description: 12 pages
The use of the multi-cumulant tensor analysis for the algorithmic optimisation of investment portfolios
Creators: name: Domino, Krzysztof
Publisher: name: arXiv
Year: 2016
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The cumulant analysis plays an important role in non Gaussian distributed data analysis. The shares' prices returns are good example of such data. The purpose of this research is to develop the cumulant based algorithm and use it to determine eigenvectors that represent investment portfolios with low variability. Such algorithm is based on the Alternating Least Square method and involves the simultaneous minimisation 2'nd -- 6'th cumulants of the multidimensional random variable (percentage shares' returns of many companies). Then the algorithm was tested during the recent crash on the Warsaw Stock Exchange. To determine incoming crash and provide enter and exit signal for the investment strategy the Hurst exponent was calculated using the local DFA. It was shown that introduced algorithm is on average better that benchmark and other portfolio determination methods, but only within examination window determined by low values of the Hurst exponent. Remark that the algorithm of is based on cumulant tensors up to the 6'th order calculated for a multidimensional random variable, what is the novel idea. It can be expected that the algorithm would be useful in the financial data analysis on the world wide scale as well as in the analysis of other types of non Gaussian distributed data.
description: 19 pages, 8 figures
Neuß, Wilhelm, Die Anfänge des Christentums im Rheinlande
Creators: name: Bruders, H.
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 9 Nr. 2 (1934): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 9, Heft 2
Interpenetrating subspaces as a funnel to extra space
Creators: name: Rubin, Sergey G.
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: New solution for two interpenetrating universes is found. Higher derivative gravity acting in 6-dimensional space is the basis of the study that allows to obtain stable solution without introducing matter of any sort. Stability of the solution is maintained by a difference between asymptotic behavior at spacial infinities. For an external observer such a funnel looks similar to a spherical wormhole.
description: 10 pages, 5 figures, accepted for publication in Phys. Lett. B, revised version
title: Coronary artery abnormalities in Kawasaki disease: comparison between CT and MR coronary angiography
Creators: name: Kim, Jong Woo
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Computer applications
subject: Paediatric
subject: Cardiovascular system
subject: CT-Angiography
subject: MR-Angiography
subject: Catheter arteriography
subject: Computer Applications-3D
subject: Computer Applications-Detection, diagnosis
subject: Dosimetry
subject: Artifacts
subject: Haemodynamics / Flow dynamics
subject: Aneurysms

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Introduction Kawasaki disease:acute, self-limiting vasculitis of unknown etiology, mainly affects younger children less than 4-5 years old. Coronary abnormalities(aneurysm, stenosis, occlusion): major complication related to patient'sprognosis...
Cosmological Aspects of Spontaneous Baryogenesis
Creators: name: De Simone, Andrea
name: Kobayashi, Takeshi
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 - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate cosmological aspects of spontaneous baryogenesis driven by a scalar field, and present general constraints that are independent of the particle physics model. The relevant constraints are obtained by studying the backreaction of the produced baryons on the scalar field, the cosmological expansion history after baryogenesis, and the baryon isocurvature perturbations. We show that cosmological considerations alone provide powerful constraints, especially for the minimal scenario with a quadratic scalar potential. Intriguingly, we find that for a given inflation scale, the other parameters including the reheat temperature, decoupling temperature of the baryon violating interactions, and the mass and decay constant of the scalar are restricted to lie within ranges of at most a few orders of magnitude. We also discuss possible extensions to the minimal setup, and propose two ideas for evading constraints on isocurvature perturbations: one is to suppress the baryon isocurvature with nonquadratic scalar potentials, another is to compensate the baryon isocurvature with cold dark matter isocurvature by making the scalar survive until the present.
description: 31 pages, 4 figures, v2: published in JCAP
title: Accuracy of ECG-gated multislice computed tomography after coronary reimplantation surgery in children
Creators: name: Marini, Davide
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Cardiac
subject: CT-Angiography

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Assessment of the integrity of reimplanted coronary arteries is crucial for long-term outcome after coronary reimplantation surgery in children. Conventional coronary angiography (CAA) is the current gold standard (1). We investigate the accuracy of...
Sierszyn, Armin, Zweitausend Jahre Kirchengeschichte
Creators: name: Kaiser, Bernhard
Publisher: name: Jahrbuch für evangelikale Theologie
Year: 2025

description: 1822516757
description: Jahrbuch für evangelikale Theologie, V. 14 (2000): Jahrbuch für evangelikale Theologie, Band 14
title: Diagnostic digital-subtraction-dacryocystography: criteria of evaluation, frequency and localization of pathological findings
Creators: name: Filippiadis, Dimitrios
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Eyes
subject: Ear / Nose / Throat
subject: Interventional non-vascular
subject: Fluoroscopy
subject: Percutaneous
subject: Dacryocystography
subject: Obstruction / Occlusion
subject: Inflammation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Epiphora has to do with constant tearing either due to tears overproduction or due to an obstacle inside the lacrimal drainage system that might cause stenosis or obstruction. The nasolacrimal system has become of interest to the radiologist, with...
title: Nasolacrimal polyurethane stent: improving outcomes with the Wilhelm-type Wilhelm tear leader stent
Creators: name: Filippiadis, Dimitrios
Publisher: name: European Congress of Radiology
Year: 2012
Subjects: subject: Eyes
subject: Ear / Nose / Throat
subject: Fluoroscopy
subject: Stents
subject: Dacryocystography
subject: Obstruction / Occlusion
subject: Inflammation

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Epiphora has to do with constant tearing either due to tears overproduction or due to an obstacle inside the lacrimal drainage system that might cause stenosis or obstruction. During the past, treatment of epiphora was surgical...
Neue Schriften des englischen Franziskaners Richardus Rufus von Cornwall (um 1250)
Creators: name: Pelster, Franz
Publisher: name: Scholastik
Year: 1970

description: Scholastik, Bd. 9 Nr. 2 (1934): Scholastik. Vierteljahresschrift für Theologie und Philosophie, Band 9, Heft 2