cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Photokatalytische Wasserreinigung an Elektroden von Wolframtrioxid
Creators: name: Haisch, Christoph
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: Tungsten trioxide
subject: photocatalysis
subject: Photoelectrochemistry
subject: Waste water treatment
subject: solar energy
subject: hydrogen production
subject: cold gas spray
subject: Wolframtrioxid
subject: Photokatalyse
subject: Photoelektrochemie
subject: Abwasserreinigung
subject: Sonnenenergie
subject: Wasserstoffproduktion
subject: Kaltgasspritzen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: Im Rahmen dieser Arbeit wurden solaraktive Wolframtrioxid-Photoelektroden für ein Verfahren untersucht, bei welchem mithilfe von Sonnenenergie Schadstoffe aus dem Wasser abgebaut werden und simultan Wasserstoff als Energieträger erzeugt wird. Um diese duale Nutzung des Sonnenlichts zu ermöglichen, wurden die photokatalytisch aktiven Wolframtrioxid-Elektroden auf ihre physikalischen, optischen und photoelektrochemischen Eigenschaften untersucht.
description: In the scope of this work, solar light active tungsten trioxide photoelectrodes were tested for a process, in which solar energy is used to decompose organic pollutants in water, and simultaneously generate hydrogen as an energy carrier. To enable this dual use of sunlight, photocatalytically active tungsten trioxide electrodes were investigated for their physical, optical and photoelectrochemical properties.
Impact of half-wave plate systematics on the measurement of cosmic birefringence from CMB polarization
Creators: name: Monelli, Marta
name: Komatsu, Eiichiro
name: Adler, Alexandre E.
name: Billi, Matteo
name: Campeti, Paolo
name: Dachlythra, Nadia
name: Duivenvoorden, Adriaan J.
name: Gudmundsson, Jon E.
name: Reinecke, Martin
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Polarization of the cosmic microwave background (CMB) can probe new parity-violating physics such as cosmic birefringence (CB), which requires exquisite control over instrumental systematics. The non-idealities of the half-wave plate (HWP) represent a source of systematics when used as a polarization modulator. We study their impact on the CMB angular power spectra, which is partially degenerate with CB and miscalibration of the polarization angle. We use full-sky beam convolution simulations including HWP to generate mock noiseless time-ordered data, process them through a bin averaging map-maker, and calculate the power spectra including $TB$ and $EB$ correlations. We also derive analytical formulae which accurately model the observed spectra. For our choice of HWP parameters, the HWP-induced angle amounts to a few degrees, which could be misinterpreted as CB. Accurate knowledge of the HWP is required to mitigate this. Our simulation and analytical formulae will be useful for deriving requirements for the accuracy of HWP calibration.
description: 12 pages + appendices and bibliography, 5 figures, 1 table; accepted for publication in JCAP
Optimal parameter estimation with a fixed rate of abstention
Creators: name: Gendra, B.
name: Ronco-Bonvehi, E.
name: Calsamiglia, J.
name: Muñoz-Tapia, R.
name: Bagan, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The problems of optimally estimating a phase, a direction, and the orientation of a Cartesian frame (or trihedron) with general pure states are addressed. Special emphasis is put on estimation schemes that allow for inconclusive answers or abstention. It is shown that such schemes enable drastic improvements, up to the extent of attaining the Heisenberg limit in some cases, and the required amount of abstention is quantified. A general mathematical framework to deal with the asymptotic limit of many qubits or large angular momentum is introduced and used to obtain analytical results for all the relevant cases under consideration. Parameter estimation with abstention is also formulated as a semidefinite programming problem, for which very efficient numerical optimization techniques exist.
description: 17 pages, 6 figures
Topological Cyclic Homology Via the Norm
Creators: name: Angeltveit, Vigleik
name: Blumberg, Andrew J.
name: Gerhardt, Teena
name: Hill, Michael A.
name: Lawson, Tyler
name: Mandell, Michael A.
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2018

description: We describe a construction of the cyclotomic structure on topological Hochschild homology ($THH$) of a ring spectrum using the Hill--Hopkins--Ravenel multiplicative norm. Our analysis takes place entirely in the category of equivariant orthogonal spectra, avoiding use of the B\"okstedt coherence machinery. We are also able to define two relative versions of topological cyclic homology ($TC$) and $TR$-theory: one starting with a ring $C_n$-spectrum and one starting with an algebra over a cyclotomic commutative ring spectrum $A$. We describe spectral sequences computing the relative theory over $A$ in terms of $TR$ over the sphere spectrum and vice versa. Furthermore, our construction permits a straightforward definition of the Adams operations on $TR$ and $TC$.
description: DOCUMENTA MATHEMATICA, Vol 23 (2018), p. 2101-2163
An Approach to the Design and the Interactions of a Fully Superconducting Synchronous Generator and Its Power Converter
Creators: name: Lengsfeld, Sebastian
name: Sprunck, Sebastian
name: Frank, Simon Robin
name: Jung, Marco
name: Hiller, Marc
name: Ponick, Bernd
name: Mersche, Stefan
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: fully superconducting generator
subject: HTS
subject: power converter
subject: synchronous generator
subject: wind energy
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: The design of a fully superconducting wind power generator is influenced by several factors. Among them, a low number of pole pairs is desirable to achieve low AC losses in the superconducting stator winding, which greatly influences the cooling system design and, consecutively, the efficiency of the entire wind power plant. However, it has been identified that a low number of pole pairs in a superconducting generator tends to greatly increase its output voltage, which in turn creates challenging conditions for the necessary power electronic converter. This study highlights the interdependencies between the design of a fully superconducting 10 MW wind power generator and the corresponding design of its power electronic converter. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
title: On Soliton Interactions for a Hierarchy of Generalized Heisenberg Ferromagnetic Models on SU(3)/S(U(1) $\times$ U(2)) Symmetric Space
titleType: Other
Creators: name: Gerdijkov, Vladimir
Publisher: name: Technological University Dublin
Year: 2012

description: We consider an integrable hierarchy of nonlinear evolution equations (NLEE) related to linear bundle Lax operator L. The Lax representation is Z2 \times Z2 reduced and is naturally associated with the symmetric space SU(3)/S(U(1) \times U(2)). The simplest nontrivial equation in the hierarchy is a generalization of Heisenberg ferromagnetic model. We construct the N-soliton solutions for an arbitrary member of the hierarchy by using the Zakharov-Shabat dressing method with an appropriately chosen dressing factor. Two types of soliton solutions: quadruplet and doublet solitons are found. The one-soliton solutions of NLEEs with even and odd dispersion laws have different properties. In particular, the one-soliton solutions for NLEEs with even dispersion laws are not traveling waves; their velocities and their amplitudes are time dependent. Calculating the asymptotics of the N-soliton solutions for t \rightarrow \pm \infty we analyze the interactions of quadruplet solitons.
Harmony United Psychiatric Care in tampa
Creators: name: hupcfl, kelvinjonas
Publisher: name: figshare
Year: 2023
Subjects: Physiotherapy

description: Harmony United Psychiatric Care in tampa provides quality online counseling and treatment for mental health issues such as ADHD, Bipolar disorder, and other psychological disorders.
 Our team of experienced psychologists provides personalized care to ensure that our clients receive the best possible care. We offer a range of services including individual therapy, group therapy, family therapy, medication management, and more. We strive to provide our clients with the highest quality of care to help them reach their goals.
 Here at Harmony, we understand that mental health can be confusing and difficult. That’s why we’re here to help! Our team of licensed clinical psychologists provides individualized care for those struggling with ADHD, Bipolar disorder, anxiety disorders, and other conditions. With a deep understanding of the challenges faced by our clients, we strive to help our clients reach their highest potential for success and well-being. Visit- https://hupcfl.com/locations/tampa-florida/therapist-in-tampa/
The small-scale dynamo: Breaking universality at high Mach numbers
Creators: name: Schleicher, Dominik R. G.
name: Schober, Jennifer
name: Federrath, Christoph
name: Bovino, Stefano
name: Schmidt, Wolfram
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Fluid Dynamics (physics.flu-dyn)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: (Abridged) The small-scale dynamo may play a substantial role in magnetizing the Universe under a large range of conditions, including subsonic turbulence at low Mach numbers, highly supersonic turbulence at high Mach numbers and a large range of magnetic Prandtl numbers Pm, i.e. the ratio of kinetic viscosity to magnetic resistivity. Low Mach numbers may in particular lead to the well-known, incompressible Kolmogorov turbulence, while for high Mach numbers, we are in the highly compressible regime, thus close to Burgers turbulence. In this study, we explore whether in this large range of conditions, a universal behavior can be expected. Our starting point are previous investigations in the kinematic regime. Here, analytic studies based on the Kazantsev model have shown that the behavior of the dynamo depends significantly on Pm and the type of turbulence, and numerical simulations indicate a strong dependence of the growth rate on the Mach number of the flow. Once the magnetic field saturates on the current amplification scale, backreactions occur and the growth is shifted to the next-larger scale. We employ a Fokker-Planck model to calculate the magnetic field amplification during the non-linear regime, and find a resulting power-law growth that depends on the type of turbulence invoked. For Kolmogorov turbulence, we confirm previous results suggesting a linear growth of magnetic energy. For more general turbulent spectra, where the turbulent velocity v_t scales with the characteristic length scale as u_\ell\propto \ell^{\vartheta}, we find that the magnetic energy grows as (t/T_{ed})^{2\vartheta/(1-\vartheta)}, with t the time-coordinate and T_{ed} the eddy-turnover time on the forcing scale of turbulence. For Burgers turbulence, \vartheta=1/2, a quadratic rather than linear growth may thus be expected, and a larger timescale until saturation is reached.
description: 10 pages, 3 figures, 2 tables. Accepted at New Journal of Physics (NJP)
Euphorbia lathyris L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E.Lathyris L. Cat. 315. 2: Ollon bei Chermignon (Besse); Champsabé unterhalb Siders (idem); Gampel (H. Itten in Ber. Schweiz. Bot. Ges. 36, S. 82 [1927]).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
title: Stiefel and Grassmann Manifolds in Quantum Chemistry
titleType: Other
Creators: name: Chiumiento, Eduardo
Publisher: name: Technological University Dublin
Year: 2012

description: We establish geometric properties of Stiefel and Grassmann manifolds which arise in relation to Slatertype variational spaces in many-particle Hartree-Fock theory and beyond. In particular, we prove thatthey are analytic homogeneous spaces and submanifolds of the space of bounded operators on the single-particle Hilbert space. As a by-product we obtain that they are complete Finsler manifolds. These geometric properties underpin state-of-the-art results on existence of solutions to Hartree-Fock type equations.
title: Existence of a Minimizer for the Quasi-Relativistic Kohn-Sham Model
titleType: Other
Creators: name: Argáez García, Carlos
Publisher: name: TU Dublin
Year: 2012

description: We study the standard and extended Kohn-Sham models for quasi-relativistic N-electron Coulomb systems; that is, systems where the kinetic energy of the electrons is given by the quasi-relativistic operator (see article) . For spin-unpolarized systems in the local density approximation, we prove existence of a ground state (or minimizer) provided that the total charge Z of K nuclei is greater than N-1 and that Z is smaller than a critical charge (see article).
title: Neuromorphic Event-based Action Recognition
titleType: Other
Creators: name: Harrigan, S.
Publisher: name: TU Dublin
Year: 2019

description: An action can be viewed as spike trains or streams of events when observed and captured by neuromorphic imaging hardware such as the iniLabs DVS128. These streams are unique to each action enabling them to be used to form descriptors. This paper describes an approach for detecting specific actions based on space-time template matching by forming such descriptors and using them as comparative tools. The developed approach is used to detect symbols from the popular RoShambo (rock, paper and scissors) game. The results demonstrate that the developed approach can be used to correctly detect the motions involved in producing RoShambo symbols.
Elektrische Kontaktierung von SnxSy- und Platinsalz-Nanodrähten
Creators: name: Meyer, Jörg Michael
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Nanowire
subject: nanorod
subject: nanofiber
subject: nanowhisker
subject: Nanodraht
subject: Nanostab
subject: Nanofaser
subject: Nanoborste
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
title: On Maximal Relatively Divisible Submodules
titleType: Other
Creators: name: Goldsmith, Brendan
Publisher: name: TU Dublin
Year: 2012

description: In recent work Goebel and Goldsmith investigated the spectrum of maximal pure subgroups of certain Abelian groups. Here the situation relating to maximal pure submodules of a torsion-free module over an integral domain R is investigated. Connections to the level of coherency are established along with a detailed investigation of the situation where all maximal pure submodules are isomorphic to a product of copies of the ring R.
Bayesian analysis of ages, masses, and distances to cool stars with non-LTE spectroscopic parameters
Creators: name: Serenelli, Aldo
name: Bergemann, Maria
name: Ruchti, Gregory
name: Casagrande, Luca
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: For studies of Galactic evolution, the accurate characterization of stars in terms of their evolutionary stage and population membership is of fundamental importance. A standard approach relies on extracting this information from stellar evolution models but requires the effective temperature, surface gravity, and metallicity of a star obtained by independent means. In previous work, we determined accurate effective temperatures and non-LTE logg and [Fe/H] (NLTE-Opt) for a large sample of metal-poor stars, -3
description: 13 pages and 15 figures. Accepted for publication in MNRAS
title: Spatial Coherency in Colourisation
titleType: Other
Creators: name: Mullery, Sean
Publisher: name: TU Dublin
Year: 2019

description: Automatic colourisation is the function of inferring colour information from a grey-scale prior and then combining the colour with the grey-scale to form a colourised version of the image. We identify Spatial Coherence as a particular weakness in methods that use Convolutional Neural Networks for colourisation. Generated colours do not adhere to semantic edges and are not consistent within boundaries where we would expect uniform colour. Spatial Coherence, while often evident to the human eye, does not yet have an objective metric. We show, by segmentation of the combined ab channels of the CIEL*a*b* colour space, that a segmentation based on CNN colourisation is poor. We argue the need for the development of metrics to evaluate a colourisation’s performance on Spatial Coherence.
XALQ DOSTONLARIDA BADIIY OBRAZ TUSHUNCHASI (RAVSHAN DOSTONI MISOLIDA)
Creators: name: Abirova, Sevinch
Publisher: name: Zenodo
Year: 2023

description: Maqolada "Ravshan"dostoni  ichimdagi badiiy obrazdagi insonlar timsoli mahorat bilan tasvirlangan.
Zero-field Hall effect in chiral p-wave superconductors near Kosterlitz-Thouless transition
Creators: name: Chung, Chun-Kit
name: Kato, Yusuke
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We discuss Hall effect and power dissipation in chiral p-wave superconductors near Kosterlitz-Thouless transition in the absence of applied magnetic field. In bound pair dynamics picture, nonzero Hall conductivity emerges when vortex-antivortex bound pair polarization has a component transverse to the direction of external perturbation. Such effect arises from the broken time reversal symmetry nature of a chiral p-wave superconducting state and does not require an applied magnetic field. A frequency-dependent matrix dielectric function $ε(ω)$ is derived to describe the screening effect due to the pair polarization. Quantities related to the Hall conductivity and power dissipation, denoted as $ε^{-1}_\perp$ and $\Im (-ε^{-1}_\parallel)$, are investigated in frequency and temperature domain. The imaginary part of the former can show peak structure and sign reversal as a function of frequency close to transition temperature, as well as in the temperature domain at various fixed frequencies. The latter shows peak structure near transition temperature. These features are attributed to pair-size-dependent longitudinal and transverse response function of bound pairs. Consequences due to free vortex dynamics and the resulting total conductivity tensor $σ$ are also discussed.
FLUPS -- a flexible and performant massively parallel Fourier transform library
Creators: name: Balty, Pierre
name: Chatelain, Philippe
name: Gillis, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 68W10, 65T50

description: Massively parallel Fourier transforms are widely used in computational sciences, and specifically in computational fluid dynamics which involves unbounded Poisson problems. In practice the latter is usually the most time-consuming operation due to its inescapable all-to-all communication pattern. The original flups library tackles that issue with an implementation of the distributed Fourier transform tailor-made for successive resolutions of unbounded Poisson problems. However the proposed implementation lacks of flexibility as it only supports cell-centered data layout and features a plain communication strategy. This work extends the library along two directions. First, flups implementation is generalized to support a node-centered data layout. Second, three distinct approaches are provided to handle the communications: one all-to-all, and two non-blocking implementations relying on manual packing and MPI_Datatype to communicate over the network. The proposed software is validated against analytical solutions for unbounded, semi-unbounded, and periodic domains. The performance of the approaches is then compared against accFFT, another distributed FFT implementation, using a periodic case. Finally the performance metrics of each implementation are analyzed and detailed on various top-tier European facilities up to 49,152 cores. This work brings flups up to a fully production-ready and performant distributed FFT library, featuring all the possible types of FFTs and with flexibility in the data-layout. The code is available under a BSD-3 license at github.com/vortexlab-uclouvain/flups.
description: includes updated results due to a typo in [1], B.10
Modelling 3D Force-Free Neutron Star Magnetospheres
Creators: name: Stefanou, Petros
name: Pons, Jose A.
name: Cerdá-Durán, Pablo
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Magnetars exhibit a variety of transient high-energy phenomena in the form of bursts, outbursts, and giant flares. It is a common belief that these events originate in the sudden release of magnetic energy due to the rearrangement of a twisted magnetic field. We present global models of a 3D Force-Free (FF) non-linear twisted magnetar magnetosphere. We solve the FF equations following the Grad-Rubin approach in a compactified spherical domain. Appropriate boundary conditions are imposed at the surface of the star for the current distribution and the magnetic field. Our implementation is tested by reproducing various known analytical as well as axisymmetric numerical results. We then proceed to study general 3D models with non-axisymmetric current distributions, such as fields with localised twists that resemble hotspots at the surface of the star, and we examine characteristic quantities such as energy, helicity and twist. Finally, we discuss implications on the available energy budget, the surface temperature and the diffusion timescale, which can be associated with observations.
description: 12 pages, 10 figures, small typo corrections, removed Fig. 7 and relative discussion, new version of Fig. 8 (now 7) in v2
title: Development of a Nanodrop Shape Analysis Tool for Installation in a Novel Nanodrop Spectrophotometer
titleType: Other
Creators: name: Monaghan, Colin
Publisher: name: TU Dublin
Year: 2019

description: The rapid identification of liquid composition is an important task integral to a wide range of industries including medical, pharmaceuticals, petrochemicals, and vinification. To aid in this identification spectroscopy can be utilised, however specialised instrumentation must be developed to deliver quantitative information. A spectrophotometer uses spectral data to identify chemical composition of droplets. However, to accurately perform this function, prior knowledge of the size and shape of the droplet is essential to understand chemical quantity. Whilst image data can be easily captured with a high definition camera, the image analysis to translate images into a relevant region of interest (ROI) and to extract usable data autonomously has proven challenging. Here we report the autonomous detection of nanodrops and extraction of their cartesian co-ordinates facilitating the mathematical approximations that can beget values such as volume, contact angle, rate of absorption of spectra, and the length of light paths within the medium.
A loss function approach to model specification testing and its relative efficiency
Creators: name: Hong, Yongmiao
name: Lee, Yoon-Jin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The generalized likelihood ratio (GLR) test proposed by Fan, Zhang and Zhang [Ann. Statist. 29 (2001) 153-193] and Fan and Yao [Nonlinear Time Series: Nonparametric and Parametric Methods (2003) Springer] is a generally applicable nonparametric inference procedure. In this paper, we show that although it inherits many advantages of the parametric maximum likelihood ratio (LR) test, the GLR test does not have the optimal power property. We propose a generally applicable test based on loss functions, which measure discrepancies between the null and nonparametric alternative models and are more relevant to decision-making under uncertainty. The new test is asymptotically more powerful than the GLR test in terms of Pitman's efficiency criterion. This efficiency gain holds no matter what smoothing parameter and kernel function are used and even when the true likelihood function is available for the GLR test.
description: Published in at http://dx.doi.org/10.1214/13-AOS1099 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
title: Synthetic Positron Emission Tomography Using Conditional-Generative Adversarial Networks for Healthy Bone Marrow Baseline Image Generation
titleType: Other
Creators: name: Leydon, Patrick
Publisher: name: TU Dublin
Year: 2019

description: A Conditional-Generative Adversarial Network has been used for a supervised image-to-image transla- tion task which outputs a synthetic PET scan based on real patient CT data. The network is trained using only data of patients with healthy bone marrow metabolism. This allows for a patient specific synthetic healthy baseline scan to be produced. This can be used by a clinician for comparison to real PET data in the absence of a baseline scan or to aid in the diagnosis of conditions such as Multiple Myeloma which manifest as changes in bone marrow metabolism.
Barrier-free subsurface incorporation of 3d metal atoms into Bi(111) films
Creators: name: Klein, C.
name: Vollmers, N.J.
name: Gerstmann, U.
name: Zahl, P.
name: Lükermann, Daniel
name: Jnawali, G.
name: Pfnür, Herbert
name: Tegenkamp, Christoph
name: Sutter, P.
name: Schmidt, W.G.
name: Horn-Von Hoegen, Michael
Publisher: name: College Park, MD : American Physical Society
Year: 2015
Subjects: subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: By combining scanning tunneling microscopy with density functional theory it is shown that the Bi(111) surface provides a well-defined incorporation site in the first bilayer that traps highly coordinating atoms such as transition metals (TMs) or noble metals. All deposited atoms assume exactly the same specific sevenfold coordinated subsurface interstitial site while the surface topography remains nearly unchanged. Notably, 3d TMs show a barrier-free incorporation. The observed surface modification by barrier-free subsorption helps to suppress aggregation in clusters. It allows a tuning of the electronic properties not only for the pure Bi(111) surface, but may also be observed for topological insulators formed by substrate-stabilized Bi bilayers. © 2015 American Physical Society.
Celestial Locality and the Jacobi Identity
Creators: name: Ball, Adam
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show the equivalence of several different tests of the Jacobi identity for celestial currents at tree level, in particular finding a simple, practical condition on hard momentum space 4-point amplitudes in any EFT. Along the way we clarify the role of the order of soft and collinear limits in obstructing Jacobi for soft insertions and we argue that, despite their current-algebra-like properties, soft insertions as formulated in this paper cannot be interpreted as local operators in celestial conformal field theory.
description: 18 pages, 1 figure; v2 typos corrected, references added
Adiabaticity in the lateral electron-momentum distribution after strong-field ionization
Creators: name: Henkel, Jost
name: Lein, Manfred
name: Engel, Volker
name: Dreissigacker, Ingo
Publisher: name: College Park, MD : American Physical Society
Year: 2012
Subjects: subject: Adiabaticity
subject: Coulomb effects
subject: Dinger equation
subject: Electron momentum
subject: Laser fields
subject: Polarization direction
subject: Rescattering
subject: Short laser pulse
subject: Strong field ionization
subject: Time-dependent
subject: Time-scales
subject: Tunneling ionization
subject: Polarization
subject: Ionization
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: By solving the time-dependent Schrödinger equation for atoms in short laser pulses of different polarizations, it is shown that in strong-field ionization without rescattering, the lateral width of the electron-momentum distribution corresponds adiabatically to the instantaneous laser field on a sub-laser-cycle time scale, as expected in pure tunneling ionization. In contrast to the distributions along the polarization direction, the width is affected little by depletion or Coulomb effects. © 2012 American Physical Society.
Stationary holographic plasma quenches and numerical methods for non-Killing horizons
Creators: name: Figueras, Pau
name: Wiseman, Toby
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore use of the harmonic Einstein equations to numerically find stationary black holes where the problem is posed on an ingoing slice that extends into the interior of the black hole. Requiring no boundary conditions at the horizon beyond smoothness of the metric, this method may be applied for horizons that are not Killing. As a non-trivial illustration we find black holes which, via AdS-CFT, describe a time-independent CFT plasma flowing through a static spacetime which asymptotes to Minkowski in the flow's past and future, with a varying spatial geometry in-between. These are the first explicit examples of stationary black holes which do not have Killing horizons. When the CFT spacetime slowly varies, the CFT stress tensor derived from gravity is well described by viscous hydrodynamics. For fast variation it is not, and the solutions are stationary analogs of dynamical quenches, with the plasma being suddenly driven out of equilibrium. We find evidence these flows become unstable for sufficiently strong quenches, and speculate the instability may be turbulent.
description: 12 pages, 11 figures
A-free rigidity and applications to the compressible Euler system
Creators: name: Chiodaroli, Elisabetta
name: Feireisl, Eduard
name: Kreml, Ondrej
name: Wiedemann, Emil
Publisher: name: Heidelberg : Springer Verlag
Year: 2017
Subjects: subject: $$\mathcal {A}$$A-free condition
subject: Compressible Euler equations
subject: Measure-valued solutions
subject: Rigidity
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: Can every measure-valued solution to the compressible Euler equations be approximated by a sequence of weak solutions? We prove that the answer is negative: generalizing a well-known rigidity result of Ball and James to a more general situation, we construct an explicit measure-valued solution for the compressible Euler equations which cannot be generated by a sequence of distributional solutions. We also give an abstract necessary condition for measure-valued solutions to be generated by weak solutions, relying on work of Fonseca and Müller. While a priori it is not unexpected that not every measure-valued solution arises from a sequence of weak solutions, it is noteworthy that this observation in the compressible case is in contrast to the incompressible situation, where every measure-valued solution can be approximated by weak solutions, as shown by Székelyhidi and Wiedemann. The final publication is available at Springer via http://dx.doi.org/10.1007/s10231-016-0629-9.
Euphorbia cyparissias L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: E. Cyparissias L. Cat. 316. Bis 3050 m: Oberrothorn bei Zermatt (Braun-Blanquet 1919). Andere hohe Stellen sind: bei der Britanniahütte (Saastal), 3020 m (Oberson 1953); Gornergrat bei Zermatt, Südhang, gegen 3000 m, blühend (Binz 1899), ebenda etwa 2950 m, steril (Thellung 1919).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Amplitudes for Spacetime Regions and the Quantum Zeno Effect: Pitfalls of Standard Path Integral Constructions
Creators: name: Halliwell, J. J.
name: Yearsley, J. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We argue that under very general conditions, there is a significant complication in amplitudes for spacetimes regions constructed from path integrals. This is the fact that the concrete implementation of the restrictions on paths over an interval of time corresponds, in an operator language, to sharp monitoring at every moment of time in the given time interval. Such processes suffer from the quantum Zeno effect -- the continual monitoring of a quantum system in a Hilbert subspace prevents its state from leaving that subspace. As a consequence, path integral amplitudes defined in this seemingly obvious way have physically and intuitively unreasonable properties and in particular, no sensible classical limit. In this paper we describe this frequently-occurring but little-appreciated phenomenon in some detail, showing clearly the connection with the quantum Zeno effect. We then show that it may be avoided by implementing the restriction on paths in the path integral in a "softer" way. The resulting amplitudes then involve a new coarse graining parameter, which may be taken to be a timescale $\eps$, describing the softening of the restrictions on the paths. We argue that the complications arising from the Zeno effect are then negligible as long as $\eps >> 1/ E$, where $E$ is the energy scale of the incoming state. Our criticisms of path integral constructions largely apply to approaches to quantum theory such as the decoherent histories approach or quantum measure theory, which do not specifically involve measurements. We address some criticisms of our approach by Sokolovksi, concerning the relevance of our results to measurement-based models.
description: To appear in proceedings of the 2012 DICE Conference (edited by T.Elze). arXiv admin note: substantial text overlap with arXiv:1205.3773
Power Conversion and Its Efficiency in Thermoelectric Materials
Creators: name: Feldhoff, Armin
Publisher: name: Basel : MDPI
Year: 2020
Subjects: subject: thermoelectrics
subject: power conversion
subject: efficiency
subject: voltage-electrical current curve
subject: working point
subject: entropy pump mode
subject: generator mode
subject: power factor
subject: figure of merit
subject: Altenkirch-Ioffe model
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: The basic principles of thermoelectrics rely on the coupling of entropy and electric charge. However, the long-standing dispute of energetics versus entropy has long paralysed the field. Herein, it is shown that treating entropy and electric charge in a symmetric manner enables a simple transport equation to be obtained and the power conversion and its efficiency to be deduced for a single thermoelectric material apart from a device. The material’s performance in both generator mode (thermo-electric) and entropy pump mode (electro-thermal) are discussed on a single voltage-electrical current curve, which is presented in a generalized manner by relating it to the electrically open-circuit voltage and the electrically closed-circuited electrical current. The electrical and thermal power in entropy pump mode are related to the maximum electrical power in generator mode, which depends on the material’s power factor. Particular working points on the material’s voltage-electrical current curve are deduced, namely, the electrical open circuit, electrical short circuit, maximum electrical power, maximum power conversion efficiency, and entropy conductivity inversion. Optimizing a thermoelectric material for different working points is discussed with respect to its figure-of-merit zT and power factor. The importance of the results to state-of-the-art and emerging materials is emphasized.
Charakterisierung und Identifizierung eines Interaktionspartners des Tat-Translokons von Escherichia coli
Creators: name: Mehner, Denise
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Escherichia coli
subject: twin-arginine translocation-System
subject: phage-shock-System
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
КОНЦЕПТ «ЩЕДРОСТЬ» В РУССКОЙ И УЗБЕКСКОЙ  ПАРЕМИОЛОГИЧЕСКОЙ КАРТИНЕ МИРА
Creators: name: Саттарова, Асаль
name: Абдуллаева, Р.Х.
Publisher: name: Zenodo
Year: 2023

description: Пословицы и поговорки – это бесценное наследие каждого народа. Они накапливались тысячелетиями задолго до появления письменности и устно передавались от поколения в поколение. Это древнейший жанр фольклора. Художественное совершенство пословиц: образность, глубина содержания, яркость, богатство языка обеспечило им вечную жизнь в нашей речи. В данной статье предпринимается попытка  анализа концепта «щедрость»  именно в  паремиологическом фонде  русского и узбекского лингвокультур, так как  концепт «щедрость» является одним из важнейших моральных ценностей в русской и узбекской лингвокультуре.
Conformal Trace Relations from the Dilaton Wess-Zumino Action
Creators: name: Coriano, Claudio
name: Rose, Luigi Delle
name: Marzo, Carlo
name: Serino, Mirko
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We use the method of Weyl-gauging in the determination of the Wess-Zumino conformal anomaly action, to show that in any even ($d = 2 k$) dimensions all the hierarchy of correlation functions involving traces of the energy-momentum tensor is determined in terms of those of lower orders, up to $2 k$. We work out explicitly the case $d=4$, and show that in this case in any conformal field theory only the first 4 traced correlators are independent. All the remaining correlators are recursively generated by the first 4. The result is a consequence of the cocycle condition which defines the Wess-Zumino action and of the finite order of its dilaton interactions.
description: 18 pages
A Step Towards Twist Conjecture
Creators: name: Huang, Jingyin
name: Przytycki, Piotr
Publisher: name: Deutsche Mathematiker-Vereinigung
Year: 2018

description: Under the assumption that a defining graph of a Coxeter group admits only twists in $\mathbb{Z}_2$ and is of type FC, we prove M\"uhlherr's Twist Conjecture.
description: DOCUMENTA MATHEMATICA, Vol 23 (2018), p. 2081-2100
The Clump Mass Function of the Dense Clouds in the Carina Nebula Complex
Creators: name: Pekruhl, Stephanie
name: Preibisch, Thomas
name: Schuller, Frederic
name: Menten, Karl
Publisher: name: arXiv
Year: 2012
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We want to characterize the properties of the cold dust clumps in the Carina Nebula Complex (CNC), which shows a very high level of massive star feedback. We derive the Clump Mass Function (ClMF), explore the reliability of different clump extraction algorithms, and investigate the influence of the temperatures within the clouds on the resulting shape of the ClMF. We analyze a 1.25x1.25 deg^2 wide-field sub-mm map obtained with LABOCA (APEX), which provides the first spatially complete survey of the clouds in the CNC. We use the three clump-finding algorithms CLUMPFIND (CF), GAUSSCLUMPS (GC) and SExtractor (SE) to identify individual clumps and determine their total fluxes. In addition to assuming a common `typical' temperature for all clouds, we also employ an empirical relation between cloud column densities and temperature to determine an estimate of the individual clump temperatures, and use this to determine individual clump masses. While the ClMF based on the CF extraction is very well described by a power-law, the ClMFs based on GC and SE are better represented by a log-normal distribution. We also find that the use of individual clump temperatures leads to a shallower ClMF slope than the assumption of a common temperature (e.g. 20 K) of all clumps. The power-law of dN/dM \propto M^-1.95 we find for the CF sample is in good agreement with ClMF slopes found in previous studies of other regions. The dependence of the ClMF shape (power-law vs. log-normal distribution) on the employed extraction method suggests that observational determinations of the ClMF shape yields only very limited information about the true structure of the cloud. Interpretations of log-normal ClMF shape as a signature of turbulent pre-stellar clouds vs. power-law ClMFs as a signature of star-forming clouds may be taken with caution for a single extraction algorithm without additional information.
description: 8 pages, 7 figures, accepted by A&A
title: Deep CNN Frameworks for Comparison for Malaria Diagnosis
titleType: Other
Creators: name: Adyasha Pattanaik, Priyadarshini
Publisher: name: TU Dublin
Year: 2019

description: Abstract We compare Deep Convolutional Neural Networks (DCNN) frameworks, namely AlexNet and VGGNet, for the classification of healthy and malaria-infected cells in large, grayscale, low quality and low resolution microscopic images, in the case only a small training set is available. Experimental results deliver promising results on the path to quick, automatic and precise classification in unstrained images.
Distances to Dwarf Galaxies of the Canes Venatici I Cloud
Creators: name: Makarov, D. I.
name: Makarova, L. N.
name: Uklein, R. I.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We determined the spatial structure of the scattered concentration of galaxies in the Canes Venatici constellation. We redefined the distances for 30 galaxies of this region using the deep images from the Hubble Space Telescope archive with the WFPC2 and ACS cameras. We carried out a high-precision stellar photometry of the resolved stars in these galaxies, and determined the photometric distances by the tip of the red giant branch (TRGB) using an advanced technique and modern calibrations. High accuracy of the results allows us to distinguish the zone of chaotic motions around the center of the system. A group of galaxies around M94 is characterized by the median velocity VLG=287 km/s, distance D=4.28 Mpc, internal velocity dispersion sigma=51 km/s and total luminosity LB=1.61x10^10 Lo. The projection mass of the system amounts to Mp=2.56x10^12 Mo, which corresponds to the mass-luminosity ratio of (M/L)p=159 (M/L)o. The estimate of the mass-luminosity ratio is significantly higher than the typical ratio M/LB ~30 for the nearby groups of galaxies. The CVnI cloud of galaxies contains 4-5 times less luminous matter compared with the well-known nearby groups, like the Local Group, M81 and Centaurus A. The central galaxy M94 is at least 1 mag fainter than any other central galaxy of these groups. However, the concentration of galaxies in the Canes Venatici may have a comparable total mass.
description: 18 pages, 7 figures, 2 tables; published in Astrophysical Bulletin, Volume 68, Issue 2, p.131 (2013)
title: FisheyeMODNet: Moving Object Detection on Surround-view Cameras for Autonomous Driving
titleType: Other
Creators: name: Yahiaoui, Marie
Publisher: name: TU Dublin
Year: 2019

description: Moving Object Detection (MOD) is an important task for achieving robust autonomous driving. An autonomous vehicle has to estimate collision risk with other interacting objects in the environment and calculate an optional trajectory. Collision risk is typically higher for moving objects than static ones due to the need to estimate the future states and poses of the objects for decision making. This is particularly important for near-range objects around the vehicle which are typically detected by a fisheye surroundview system that captures a 360± view of the scene. In this work, we propose a CNN architecture for moving object detection using fisheye images that were captured in autonomous driving environment. As motion geometry is highly non-linear and unique for fisheye cameras, we will make an improved version of the current dataset public to encourage further research. To target embedded deployment, we design a lightweight encoder sharing weights across sequential images. The proposed network runs at 15 fps using Jetston Nvidia TX2 embedded GPU at accuracy of 40% IoU and 69.5% mIoU.
New Suns in the Cosmos?
Creators: name: de Freitas, D. B.
name: Leão, I. C.
name: Lopes, C. E. F.
name: Paz-Chinchon, F.
name: Martins, B. L. Canto
name: Alves, S.
name: De Medeiros, J. R.
name: Catelan, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The present work reports on the discovery of three stars that we have identified to be rotating Sun-like stars, based on rotational modulation signatures inferred from light curves from the CoRoT mission's Public Archives. In our analysis, we performed an initial selection based on rotation period and position in the Period--$T_{\rm eff}$ diagram. This revealed that the stars CoRoT IDs 100746852, 102709980, and 105693572 provide potentially good matches to the Sun with similar rotation period. To refine our analysis, we applied a novel procedure, taking into account the fluctuations of the features associated to photometric modulation at different time intervals and the fractality traces that are present in the light curves of the Sun and of these "New Sun" candidates alike. In this sense, we computed the so-called Hurst exponent for the referred stars, for a sample of fourteen CoRoT stars with sub- and super-solar rotational periods, and for the Sun, itself, in its active and quiet phases. We found that the Hurst exponent can provide a strong discriminant of Sun-like behavior, going beyond what can be achieved with solely the rotation period itself. In particular, we find that CoRoT ID 105693572 is the star that most closely matches the solar rotation properties, as far as the latter's imprints on light curve behavior is concerned. The stars CoRoT IDs 100746852 and 102709980 have significant smaller Hurst exponents than the Sun, notwithstanding their similarity in rotation periods.
description: 20 pages, 4 figures; ApJLetters accepted
Neue Analyse- und Detektionsmethoden in der Microarray-Technologie
Creators: name: Lübbecke, Miriam
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Protein-Microarray
subject: Aptamer
subject: Oberflächenmodifizierung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
title: Neue Beiträge zur alten Geschichte und Geographie der Rheinlande, von Jacob Schneider, Düsseldorf 1860
Creators: name: Fiedler, Franz
Publisher: name: University Library Heidelberg
Year: 2016

description: Rezension zu: Neue Beiträge zur alten Geschichte und Geographie der Rheinlande, von Dr. Jacob Schneider. Erste Folge. Düsseldorf, 1860. Verlag der Schaub'schen Buchhandlung (C. Schöpping). VIII. 120 SS. 8.