cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Die Mittelschicht in Deutschland unter Druck
Creators: name: Bosch, Gerhard
name: Kalina, Thorsten
Publisher: name: DuEPublico: Duisburg-Essen Publications Online, University of Duisburg-Essen, Germany
Year: 2018

description: Auf den Punkt ...
Seit Mitte der 1990er Jahre hat in Deutschland die Einkommensungleichheit stärker als in vielen anderen europäischen Ländern zugenommen. Der Anteil der Haushalte mit einem mittleren Markteinkommen (60 bis 200% des Medianeinkommens) ging um gut acht Prozentpunkte von 56,4% im Jahre 1992 auf 48% im Jahre 2013 zurück.
Der Sozialstaat hat die wachsende Ungleichheit der Markteinkommen nur zum Teil auffangen können. In der Sekundärverteilung, also nach Steuern, Sozialabgaben und Sozialtransfers, schrumpfte der Anteil der Mittelschicht von 83% im Jahre 2000 auf knapp 78% im Jahre 2013.
Die oberen Einkommensklassen haben nicht nur mehr Verdiener, sondern auch deutlich längere Arbeitszeiten. Mit wachsendem Einkommen steigt die Zahl der bezahlten Arbeitsstunden aller Haushaltsmitglieder. Die Abstände in der bezahlten Arbeitszeit zwischen den Schichten sind in den letzten 20 Jahren gestiegen und haben die Ungleichheit vergrößert.
Immer weniger Haushalte der Unterschicht und der unteren Mittelschicht können von ihren Erwerbseinkünften leben. Unter ihnen gibt es vermehrt Singlehaushalte und Haushalte mit nur geringer Erwerbstätigkeit, in vielen Branchen haben sie oft nur noch Zugang zu Minijobs und kurzer Teilzeitarbeit.
Wichtigstes Ziel der Beschäftigungs- und Wirtschaftspolitik muss die Verringerung der Ungleichheit bei den Markteinkommen sein, u.a. durch den neuen Mindestlohn, aber auch durch die Verbesserung der Erwerbschancen der Haushaltsmitglieder aus den unteren Einkommensschichten und die Ausweitung ihrer Arbeitszeiten. Die Fehlanreize für Beschäftigte, nur kurz zu arbeiten, und für Unternehmen, nur Minijobs anzubieten, müssen beseitigt werden.
On two-dimensional integrable models with a cubic or quartic integral of motion
Creators: name: Galajinsky, Anton
name: Lechtenfeld, Olaf
Publisher: name: New York, NY : Springer International Publishing
Year: 2013
Subjects: subject: Integrable Equations in Physics
subject: Discrete and Finite Symmetries
subject: rigid-body dynamics
subject: conservative-systems
subject: invariants
subject: potentials
subject: freedom
subject: momenta
subject: hamiltonians
subject: construction
subject: s(2)
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Integrable two-dimensional models which possess an integral of motion cubic or quartic in velocities are governed by a single prepotential, which obeys a nonlinear partial differential equation. Taking into account the latter's invariance under continuous rescalings and a dihedral symmetry, we construct new integrable models with a cubic or quartic integral, each of which involves either one or two continuous parameters. A reducible case related to the two-dimensional wave equation is discussed as well. We conjecture a hidden D (2n) dihedral symmetry for models with an integral of nth order in the velocities.
title: Assessment of the correction of the period of maintenance of the front suspension of small-loaded cars on the results of computer modeling
Creators: name: Posmetev, V.I.
name: Nikonov, V.O.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The results of computer simulation on the movement of a small truck on an uneven supporting surface with the specified parameters of the car and the conditions of its movement, carried out to determine the fluctuations in the ball joint of the suspension, calculate wear and adjust the mileage before replacing it, are presented.
Probing variable range hopping lengths by magneto conductance in carbonized polymer nanofibers
Creators: name: Kim, Kyung Ho
name: Lara-Avila, Samuel
name: He, Hans
name: Kang, Hojin
name: Hong, Sung Ju
name: Park, Min
name: Eklöf, Johnas
name: Moth-Poulsen, Kasper
name: Matsushita, Satoshi
name: Akagi, Kazuo
name: Kubatkin, Sergey
name: Park, Yung Woo
Publisher: name: London : Nature Publishing Group
Year: 2018
Subjects: subject: magneto transport
subject: carbonized polymer nanofiber
subject: magneto conductance
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik

description: Using magneto transport, we probe hopping length scales in the variable range hopping conduction of carbonized polyacetylene and polyaniline nanofibers. In contrast to pristine polyacetylene nanofibers that show vanishing magneto conductance at large electric fields, carbonized polymer nanofibers display a negative magneto conductance that decreases in magnitude but remains finite with respect to the electric field. We show that this behavior of magneto conductance is an indicator of the electric field and temperature dependence of hopping length in the gradual transition from the thermally activated to the activation-less electric field driven variable range hopping transport. This reveals magneto transport as a useful tool to probe hopping lengths in the non-linear hopping regime. © 2018 The Author(s).
Thermally Activated Asymmetric Structural Recovery in a Soft Glassy Nano-Clay Suspension
Creators: name: Dhavale, Tanmay P.
name: Jatav, Shweta
name: Joshi, Yogesh M
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we study structural recovery of a soft glassy Laponite suspension by monitoring temporal evolution of elastic modulus under isothermal conditions as well as following step temperature jumps. Interestingly, evolution behavior under isothermal conditions indicates the rate, and not the path of structural recovery, to be dependent on temperature. The experiments carried out under temperature jump conditions however trace a different path of structural recovery, which shows strong dependence on temperature and the direction of change. Further investigation of the system suggests that this behavior can be attributed to restricted mobility of counterions associated with Laponite particle at the time of temperature change, which do not allow counterion concentration to reach equilibrium value associated with the changed temperature. Interestingly this effect is observed to be comparable with other glassy molecular and soft materials, which while evolve in a self-similar fashion under isothermal conditions, show asymmetric behavior upon temperature change.
description: 17 pages, 5 figures
Quantum SU(2|1) supersymmetric Calogero-Moser spinning systems
Creators: name: Fedoruk, Sergey
name: Ivanov, Evgeny
name: Lechtenfeld, Olaf
name: Sidorov, Stepan
Publisher: name: Heidelberg : Springer Verlag
Year: 2018
Subjects: subject: Extended Supersymmetry
subject: Field Theories in Lower Dimensions
subject: Matrix Models
subject: Superspaces
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: SU(2|1) supersymmetric multi-particle quantum mechanics with additional semi-dynamical spin degrees of freedom is considered. In particular, we provide an N= 4 supersymmetrization of the quantum U(2) spin Calogero-Moser model, with an intrinsic mass parameter coming from the centrally-extended superalgebra su^ (2 | 1). The full system admits an SU(2|1) covariant separation into the center-of-mass sector and the quotient. We derive explicit expressions for the classical and quantum SU(2|1) generators in both sectors as well as for the total system, and we determine the relevant energy spectra, degeneracies, and the sets of physical states. © 2018, The Author(s).
Generalised geometry for string corrections
Creators: name: Coimbra, André
name: Minasian, Ruben
name: Triendl, Hagen
name: Waldram, Daniel
Publisher: name: Berlin : Springer Verlag
Year: 2014
Subjects: subject: Differential and Algebraic Geometry
subject: Flux compactifications
subject: Supergravity Models
subject: Superstrings and Heterotic Strings
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We present a general formalism for incorporating the string corrections in generalised geometry, which necessitates the extension of the generalised tangent bundle. Not only are such extensions obstructed, string symmetries and the existence of a welldefined effective action require a precise choice of the (generalised) connection. The action takes a universal form given by a generalised Lichnerowitz-Bismut theorem. As examples of this construction we discuss the corrections linear in α′ in heterotic strings and the absence of such corrections for type II theories.
Phenacoccus Cockerell 1893
Creators: name: Gavrilov, Ilya A.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pseudococcidae
Phenacoccus

description: Phenacoccus Cockerell, 1893
 Type species Pseudococcus aceris Signoret.
 The genus Phenacoccus is one of the biggest genera in the family Pseudococcidae. It includes more then 180 species, distributed in all geographic regions (Ben-Dov, 1994). The most recent information about Palaearctic species of the genus can be found in the reviews of Danzig (2003, 2006), including descriptions, figures, keys, etc.
description: Published as part of Gavrilov, Ilya A., 2010, Descriptions of two new species of Pseudococcidae (Homoptera: Coccinea) and additions to the scale insect fauna of Bulgaria, pp. 32-40 in Zootaxa 2635 on page 33, DOI: 10.5281/zenodo.198404
Information Decomposition and Synergy
Creators: name: Olbrich, Eckehard
name: Bertschinger, Nils
name: Rauh, Johannes
Publisher: name: Basel : MDPI AG
Year: 2015
Subjects: subject: information decomposition
subject: mutual information
subject: Shannon information
subject: shared information
subject: synergy
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Recently, a series of papers addressed the problem of decomposing the information of two random variables into shared information, unique information and synergistic information. Several measures were proposed, although still no consensus has been reached. Here, we compare these proposals with an older approach to define synergistic information based on the projections on exponential families containing only up to k-th order interactions. We show that these measures are not compatible with a decomposition into unique, shared and synergistic information if one requires that all terms are always non-negative (local positivity). We illustrate the difference between the two measures for multivariate Gaussians.
Galaxy stability within a self-interacting dark matter halo
Creators: name: Saxton, Curtis J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This paper investigates spheroidal galaxies comprising a self-interacting dark matter halo (SIDM) plus de Vaucouleurs stellar distribution. These are coupled only via their shared gravitational field, which is computed consistently from the density profiles. Assuming conservation of mass, momentum and angular momentum, perturbation analyses reveal the galaxy's response to radial disturbance. The modes depend on fundamental dark matter properties, the stellar mass, and the halo's mass and radius. The coupling of stars and dark matter stabilises some haloes that would be unstable as one-fluid models. However the centrally densest haloes are unstable, causing radial flows of SIDM and stars (sometimes in opposite directions). Depending on the dark microphysics, some highly diffuse haloes are also unstable. Unstable galaxies might shed their outskirts or collapse. Observed elliptical galaxies appear to exist in the safe domain. Halo pulsations are possible. The innermost node of SIDM waves may occur within ten half-light radii. Induced stellar ripples may also occur at detectable radii if higher overtones are excited. If any SIDM exists, observational skotoseismology of galaxies could probe DM physics, measure the sizes of specific systems, and perhaps help explain peculiar objects (e.g. some shell galaxies, and the growth of red nuggets).
description: MNRAS accepted; 24 pages, 15 figures, 1 table
Experimental measurement-device-independent verification of quantum steering
Creators: name: Kocsis, Sacha
name: Hall, Michael J. W.
name: Bennet, Adam J.
name: Saunders, Dylan J.
name: Pryde, Geoff J.
Publisher: name: London : Nature Publishing Group
Year: 2015
Subjects: subject: entanglement
subject: states
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Bell non-locality between distant quantum systems-that is, joint correlations which violate a Bell inequality-can be verified without trusting the measurement devices used, nor those performing the measurements. This leads to unconditionally secure protocols for quantum information tasks such as cryptographic key distribution. However, complete verification of Bell non-locality requires high detection efficiencies, and is not robust to typical transmission losses over long distances. In contrast, quantum or Einstein-Podolsky-Rosen steering, a weaker form of quantum correlation, can be verified for arbitrarily low detection efficiencies and high losses. The cost is that current steering-verification protocols require complete trust in one of the measurement devices and its operator, allowing only one-sided secure key distribution. Here we present measurement-device-independent steering protocols that remove this need for trust, even when Bell non-locality is not present. We experimentally demonstrate this principle for singlet states and states that do not violate a Bell inequality.
Constrained Source Coding with Side Information
Creators: name: Lapidoth, Amos
name: Malär, Andreas
name: Wigger, Michèle
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The source-coding problem with side information at the decoder is studied subject to a constraint that the encoder---to whom the side information is unavailable---be able to compute the decoder's reconstruction sequence to within some distortion. For discrete memoryless sources and finite single-letter distortion measures, an expression is given for the minimal description rate as a function of the joint law of the source and side information and of the allowed distortions at the encoder and at the decoder. The minimal description rate is also computed for a memoryless Gaussian source with squared-error distortion measures. A solution is also provided to a more general problem where there are more than two distortion constraints and each distortion function may be a function of three arguments: the source symbol, the encoder's reconstruction symbol, and the decoder's reconstruction symbol.
description: submitted to IEEE Transactions on Information Theory
Generalized parallel concatenated block codes based on BCH and RS codes, construction and Iterative decoding
Creators: name: Farchane, Abderrazzak
name: Belkasmi, Mostafa
name: Nouh, Said
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, a generalization of parallel concatenated block GPCB codes based on BCH and RS codes is presented.
Enhanced Thermal Transport through Soft Glassy Nano-disc Paste
Creators: name: Bhandari, Susheel S.
name: Muralidhar, K.
name: Joshi, Yogesh M
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study diffusion of heat in an aqueous suspension of disc shaped nanoparticles of Laponite, which has finite elasticity and paste-like consistency, by using the Mach-Zehnder interferometer. We estimate the thermal diffusivity of the suspension by comparing the experimentally obtained temperature distribution to that with analytical solution. We observe that despite highly constrained Brownian diffusivity of particles owing to its soft glassy nature, suspensions at very small concentrations of Laponite demonstrates significant enhancement in thermal diffusivity. We correlate the observed enhancement with the possible microstructures of the Laponite suspension.
description: 16 pages, 7 figures
Efficient quantum state tomography
Creators: name: Cramer, Marcus
name: Plenio, Martin B.
name: Flammia, Steven T.
name: Somma, Rolando
name: Gross, David
name: Bartlett, Stephen D.
name: Landon-Cardinal, Olivier
name: Poulin, David
name: Liu, Yi-Kai
Publisher: name: London : Nature Publishing Group
Year: 2010
Subjects: subject: density-matrix renormalization
subject: entanglement
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Quantum state tomography-deducing quantum states from measured data-is the gold standard for verification and benchmarking of quantum devices. It has been realized in systems with few components, but for larger systems it becomes unfeasible because the number of measurements and the amount of computation required to process them grows exponentially in the system size. Here, we present two tomography schemes that scale much more favourably than direct tomography with system size. One of them requires unitary operations on a constant number of subsystems, whereas the other requires only local measurements together with more elaborate post-processing. Both rely only on a linear number of experimental operations and post-processing that is polynomial in the system size. These schemes can be applied to a wide range of quantum states, in particular those that are well approximated by matrix product states. The accuracy of the reconstructed states can be rigorously certified without any a priori assumptions.
Shape from sound: toward new tools for quantum gravity
Creators: name: Aasen, David
name: Bhamre, Tejal
name: Kempf, Achim
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: To unify general relativity and quantum theory is hard in part because they are formulated in two very different mathematical languages, differential geometry and functional analysis. A natural candidate for bridging this language gap, at least in the case of the euclidean signature, is the discipline of spectral geometry. It aims at describing curved manifolds in terms of the spectra of their canonical differential operators. As an immediate benefit, this would offer a clean gauge-independent identification of the metric's degrees of freedom in terms of invariants that should be ready to quantize. However, spectral geometry is itself hard and has been plagued by ambiguities. Here, we regularize and break up spectral geometry into small finite-dimensional and therefore manageable steps. We constructively demonstrate that this strategy works at least in two dimensions. We can now calculate the shapes of 2-dimensional objects from their vibrational spectra.
description: 5 pages, 1 figure
Carex longifolia
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: M. longifolia (L.) Hudson (M. silvestris L.) Cat. 284 und 430; 436 (auctore Briquet). Var. major (Wirtgen) Briq. - 2: Lousine ob Fully (Gams). Var. oblongifolia (Wimmer et Grab.) Briq. - l: Outre-Rhone (Gams); Vernayaz (Coquoz). Var.grandis (Wimmeret Grab.) Briq. -l:ObFinhaut (Coquoz); Le Peuty ob Trient (idem); ob Martigny-Combe (F.); Outre-Rhone (Garns). Var. Lereschii (Desegl. et Dur.) Briq. - l: Le Cergneux ob Salvan (J.). Var. sordida (Wimmer et Grab.) - 2: TassonnieresbeiFully (Garns).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
On the Concept of Law in Physics
Creators: name: Kiefer, Claus
Publisher: name: arXiv
Year: 2013
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: I discuss the main features of the concept of law in physics. Fundamental laws from Newtonian mechanics to general relativity are reviewed. I end with an outlook on the new form of laws in the emerging theory of quantum gravity.
description: 10 pages, to appear in the Proceedings of the conference "The concept of law in science", Heidelberg, 4-5 June 2012
Generalised geometry for string corrections
Creators: name: Coimbra, André
name: Minasian, Ruben
name: Triendl, Hagen
name: Waldram, Daniel
Publisher: name: New York : Springer
Year: 2014
Subjects: subject: Superstrings
subject: Heterotic Strings
subject: Differential
subject: Algebraic Geometry
subject: Supergravity Models
subject: Flux compactifications
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We present a general formalism for incorporating the string corrections in generalised geometry, which necessitates the extension of the generalised tangent bundle. Not only are such extensions obstructed, string symmetries and the existence of a welldefined effective action require a precise choice of the (generalised) connection. The action takes a universal form given by a generalised Lichnerowitz-Bismut theorem. As examples of this construction we discuss the corrections linear in α′ in heterotic strings and the absence of such corrections for type II theories.
Measurement Uncertainty for Finite Quantum Observables
Creators: name: Schwonnek, René
name: Reeb, David
name: Werner, Reinhard F.
Publisher: name: Basel : MDPI AG
Year: 2016
Subjects: subject: error-disturbance tradeoff
subject: measurement uncertainty
subject: optimal transport
subject: semidefinite programming
subject: uncertainty relations
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: Measurement uncertainty relations are lower bounds on the errors of any approximate joint measurement of two or more quantum observables. The aim of this paper is to provide methods to compute optimal bounds of this type. The basic method is semidefinite programming, which we apply to arbitrary finite collections of projective observables on a finite dimensional Hilbert space. The quantification of errors is based on an arbitrary cost function, which assigns a penalty to getting result x rather than y, for any pair (x,y) . This induces a notion of optimal transport cost for a pair of probability distributions, and we include an Appendix with a short summary of optimal transport theory as needed in our context. There are then different ways to form an overall figure of merit from the comparison of distributions. We consider three, which are related to different physical testing scenarios. The most thorough test compares the transport distances between the marginals of a joint measurement and the reference observables for every input state. Less demanding is a test just on the states for which a “true value” is known in the sense that the reference observable yields a definite outcome. Finally, we can measure a deviation as a single expectation value by comparing the two observables on the two parts of a maximally-entangled state. All three error quantities have the property that they vanish if and only if the tested observable is equal to the reference. The theory is illustrated with some characteristic examples.
Phenacoccus alibotush Gavrilov, sp. n.
Creators: name: Gavrilov, Ilya A.
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pseudococcidae
Phenacoccus
Phenacoccus alibotush

description: Phenacoccus alibotush Gavrilov sp. n.
(Fig. 2)
 Adult female. Unmounted material. Live females white, covered by powdery wax.
 Mounted material. Body broadly oval, about 3 mm long and 2.5 mm wide. Eyes each about 45 μm in diameter. Antennae each 8-segmented, 370–400 μm long. Legs small; trochanter + femur 200–230 μm; tibia + tarsus 230–250 μm. Coxal translucent pores absent. Claw about 25 μm long, with denticle. Claw digitules longer then claw, capitate. Tarsal digitules are not visible in both studied females. Two pairs of ostioles present. Circulus present, broadly oval. Anal ring broadly oval, about 75 μm wide, with two outer rows of spinules plus an inner row of pores. Multilocular pores each about 8 μm in diameter with 10 loculi, present on ventrum only; forming transverse rows on abdominal segments; several pores also present on metathorax. Quinquelocular pores, each about 5 μm in diameter, present ventrally around labium. Trilocular pores, each about 3 μm in diameter, present throughout both body surfaces. Simple discoidal pores, each about 3 μm in diameter, present sparsely on both surfaces of body. Tubular ducts simple, all approximately of same size; each about 10 μm long and 2.5 μm wide, forming rows on dorsal and ventral parts of abdominal segments and present sparsely on dorsal and ventral parts of thorax and head. Cerarii 15–16 pairs in number; thoracic pairs С9-С11 absent. Body setae varying from short conical to long flagellate type.
 Taxomomic notes. The new species differs from other Phenacoccus spp. in the combination of the following characters: presence of 15–16 pairs of cerarii (due to the loss of 2 or 3 thoracic pairs), simple tubular ducts of one size only and the presence of a circulus. To my mind the new species is most similar to Ph. pumilus Kiritshenko, which is widely distributed and inhabits the roots of several different plants, while Ph. alibotush Gavrilov differs in the presence of a circulus, rather few dorsal tubular ducts and no multilocular pores on the dorsum.
 Material examined. Holotype Ƥ: K 659, Bulgaria, Alibotush Mts., above hut Izvora, about 1000 m. alt., on roots of Trifolium sp. 1, 19.VI.2009; paratype Ƥ, the same data.
 Etymology. The species is named after the type locality: the Alibotush Mts.
description: Published as part of Gavrilov, Ilya A., 2010, Descriptions of two new species of Pseudococcidae (Homoptera: Coccinea) and additions to the scale insect fauna of Bulgaria, pp. 32-40 in Zootaxa 2635 on pages 33-36, DOI: 10.5281/zenodo.198404
title: Especially the choice of schemes of loading of powered roof support section in the structural analysis
Creators: name: Knyazev, A.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: Variations of schemes of loading of section of the mechanized support for the subsequent research are described. Examples of the nature of the interaction of elements of the partition array, given the conditions of thrust and filling up the section at the bottom.
Dissipative binding of atoms by non-conservative forces
Creators: name: Lemeshko, Mikhail
name: Weimer, Hendrik
Publisher: name: London : Nature Publishing Group
Year: 2013
Subjects: subject: quantum simulator
subject: driven
subject: optics
subject: gas
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: The formation of molecules and supramolecular structures results from bonding by conservative forces acting among electrons and nuclei and giving rise to equilibrium configurations defined by minima of the interaction potential. Here we show that bonding can also occur by the non-conservative forces responsible for interaction-induced coherent population trapping. The bound state arises in a dissipative process and manifests itself as a stationary state at a preordained interatomic distance. Remarkably, such a dissipative bonding is present even when the interactions among the atoms are purely repulsive. The dissipative bound states can be created and studied spectroscopically in present-day experiments with ultracold atoms or molecules and can potentially serve for cooling strongly interacting quantum gases.
Small two-component Fermi gases in a cubic box with periodic boundary conditions
Creators: name: Yin, X. Y.
name: Blume, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The properties of two-component Fermi gases become universal if the interspecies s-wave scattering length $a_s$ and the average interparticle spacing are much larger than the range of the underlying two-body potential. Using an explicitly correlated Gaussian basis set expansion approach, we determine the eigen energies of two-component Fermi gases in a cubic box with periodic boundary conditions as functions of the interspecies s-wave scattering length and the effective range of the two-body potential. The universal properties of systems consisting of up to four particles are determined by extrapolating the finite-range energies to the zero-range limit. We determine the eigen energies of states with vanishing and finite momentum. In the weakly-attractive BCS regime, we analyze the energy spectra and degeneracies using first-order degenerate perturbation theory. Excellent agreement between the perturbative energy shifts and the numerically determined energies is obtained. For the infinitely large scattering length case, we compare our results - where available - with those presented in the literature.
description: 11 pages, 4 figures
Physicochemical Effects in Aging Aqueous Laponite Suspensions
Creators: name: Shahin, A.
name: Joshi, Yogesh M
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study aging behavior of aqueous suspension of Laponite as a function of concentration of Laponite, concentration of salt, time elapsed since preparation of suspension (idle time) and temperature by carrying extensive rheological and conductivity experiments. We observe that temporal evolution of elastic modulus, which describes structural buildup and aging, shifts to low times for experiments carried out for higher concentration of Laponite, higher concentration of salt, greater temperature and on higher idle time while preserving the curvature of evolution in the solid regime. Consequently appropriate shifting of evolution of elastic modulus in the solid regime leads to aging time idle time salt concentration Laponite concentration temperature superposition. Existence of such superposition suggests generic nature of microstructure buildup irrespective of mentioned variables in the explored range. Behavior of shift factors needed to obtain the superposition indicate that energy barrier associated with structural buildup decreases with increase in idle time and temperature; and decreases linearly with increase in concentration of Laponite and that of salt. The conductivity experiments show that ionic conductivity of the suspension increases with increasing Laponite concentration, salt concentration, temperature and very importantly the idle time. We also analyze the interparticle interactions using DLVO theory that suggests increase in idle time, temperature and salt concentration increases height of repulsive energy barrier while decreases width of the same when particles approach each other in a parallel fashion. Analysis of rheological and conductivity experiments suggest strong influence of attractive interactions on the low energy structures in aqueous suspension of Laponite.
description: 48 pages, 19 figures
Wilson lines and Chern-Simons flux in explicit heterotic Calabi-Yau compactifications
Creators: name: Apruzzi, Fabio
name: Gautason, Fridrik Freyr
name: Parameswaran, Susha L.
name: Zagermann, Marco
Publisher: name: New York : Springer
Year: 2015
Subjects: subject: Wilson Line
subject: Complete Intersection
subject: Special Lagrangian Submanifolds
subject: Modulo Stabilization
subject: Supersymmetry Breaking Scale
subject: Chern-Simons Term
subject: Calabi-Yau Compactifications
subject: String Model
subject: Large Classis
subject: Heterotic Compactifications
subject: Flux Compactifications
subject: Heterotic Strings
subject: Superstrings
subject: Superstring Vacua
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study to what extent Wilson lines in heterotic Calabi-Yau compactifications lead to non-trivial H-flux via Chern-Simons terms. Wilson lines are basic ingredients for Standard Model constructions but their induced H-flux may affect the consistency of the leading order background geometry and of the two-dimensional worldsheet theory. Moreover H-flux in heterotic compactifications would play an important role for moduli stabilization and could strongly constrain the supersymmetry breaking scale. We show how to compute H-flux and the corresponding superpotential, given an explicit complete intersection Calabi-Yau compactification and choice of Wilson lines. We do so by identifying large classes of special Lagrangian submanifolds in the Calabi-Yau, understanding how the Wilson lines project onto these submanifolds, and computing their Chern-Simons invariants. We illustrate our procedure with the quintic hypersurface as well as the split-bicubic, which can provide a potentially realistic three generation model.
title: Mechanism of destruction of granite under contact loading
Creators: name: Tsvigun, V.N.
name: Koinov, R.S.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: A lot of attention is paid to the creation of reliable models of deformation and destruction of solids by researchers. It is striking how easily the slip planes cut large volumes and distances, forming stepped, fractured cracks that are partially engaged. Experimental observations of crack formation, different phenomena, their analysis from the standpoint of low-cycle fatigue are presented.
MPEC 2023-V255 : DAILY ORBIT UPDATE (2023 November 15)
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
On the boundedness of Bernoulli processes
Creators: name: Bednorz, Witold
name: Latała, Rafał
Publisher: name: arXiv
Year: 2013
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60E15, 60G17

description: We present a positive solution to the so-called Bernoulli Conjecture concerning the characterization of sample boundedness of Bernoulli processes. We also discuss some applications and related open problems.
description: 36 pages
Complexation of transition metals by chelators added during mashing and impact on beer stability
Creators: name: Mertens, Tuur
name: Kunz, Thomas
name: Wietstock, Philip C.
name: Methner, Frank‐Jürgen
Publisher: name: Technische Universität Berlin
Year: 2021
Subjects: subject: 540 Chemie und zugeordnete Wissenschaften
subject: oxidative beer stability
subject: transition metals
subject: chelate complexes
subject: chelator efficacy
subject: inductively coupled plasma optical emission spectrometry
subject: electron spin resonance spectroscopy

description: Beer inevitably changes due to an array of staling reactions. A major factor in beer ageing is the involvement of transition metals (iron, copper, manganese) in oxidative reactions. To tackle the flavour stability issue, metal chelation was investigated. Based on previous research, five primary chelators (tannic acid, gallic acid, EDTA, citric acid and phytic acid) were screened using experimental design for their capacity to reduce the content of wort transition metals. The chelating agents were added under varying conditions (mash out temperature, mash pH, grain bill, chelator concentration, addition time) during laboratory scale mashing to assess how they altered complexation and metal load. Fourteen alternative chelators (ferulic acid, tartaric acid, quercetin, chlorogenic acid and ten polyphenolic food extracts: green tea, pomegranate, grape seed, reishi, cinnamon, curcuma, milk thistle, ginkgo, grapefruit seed and raspberry) were also explored. Metal ions were analysed using inductively coupled plasma optical emission spectrometry and wort oxidative stability by electron spin resonance spectroscopy. Mash pH was the most decisive of all tested process variables: acidified mashing (pH 6 to 5) produced worts with more iron, manganese and zinc (230, 320 and 150%, respectively). Addition of effective chelators counteracted this undesirable effect for iron. Green tea extract, tannic acid and, particularly, pomegranate extract all resulted in lower wort iron. Conversely, addition of EDTA, caused iron, manganese and zinc to increase. Pomegranate extract (90% ellagic acid) was the best performing chelator and reduced radical generation in wort (80% reduction by 60 mg/L addition), making it a promising novel compound in the improvement of beer shelf life. © 2021 The Authors. Journal of the Institute of Brewing published by John Wiley & Sons Ltd on behalf of The Institute of Brewing & Distilling.
Transition metals in brewing and their role in wort and beer oxidative stability: a review
Creators: name: Mertens, Tuur
name: Kunz, Thomas
name: Gibson, Brian R.
Publisher: name: Technische Universität Berlin
Year: 2022
Subjects: subject: 630 Landwirtschaft und verwandte Bereiche
subject: 540 Chemie und zugeordnete Wissenschaften
subject: beer ageing
subject: flavour stability
subject: staling
subject: oxidation
subject: transition metal catalysts
subject: chelation

description: Beer inevitably changes over time: the colour will darken, haze may form, and stale flavours develop, while others fade. The challenge of maintaining the fresh flavour quality of beer (over a typical 9‐12 month storage period) is generally the determining factor of a beer's shelf‐life for brewers, as opposed to colloidal or microbiological stability. Fortunately, as early as the brewhouse, oxidative degradation can ‐ to a certain extent ‐ be controlled, enabling the shelf‐life to be increased. This review considers the general issues of oxidative stability, mechanisms of ageing, ways of quantifying staleness and staling potential, and current practical approaches to prevent oxidative beer ageing. Emphasis is placed on the catalytic role of iron, copper and manganese on oxidation during brewing and storage; and how the removal and/or inhibition of these prooxidative transition metal ions leads to prolonged beer (flavour) stability.
Fixed points and FLRW cosmologies: Flat case
Creators: name: Awad, Adel
Publisher: name: arXiv
Year: 2013
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: We use phase space method to study possible consequences of fixed points in flat FLRW models. One of these consequences is that a fluid with a finite sound speed, or a differentiable pressure, reaches a fixed point in an infinite time and has no finite-time singularities of types I, II and III described in hep-th/0501025. It is impossible for such a fluid to cross the phantom divide in a finite time. We show that a divergent $dp/dH$, or a speed of sound is necessary but not sufficient condition for phantom crossing. We use pressure properties, such as asymptotic behavior and fixed points, to qualitatively describe the entire behavior of a solution in flat FLRW models. We discuss FLRW models with bulk viscosity $η\sim ρ^r$, in particular, solutions for $r=1$ and $r=1/4$ cases, which can be expressed in terms of Lambert-W function. The last solution behaves either as a nonsingular phantom fluid or a unified dark fluid. Using causality and stability constraints, we show that the universe must end as a de Sitter space. Relaxing the stability constraint leads to a de Sitter universe, an empty universe, or a turnaround solution that reaches a maximum size, then recollapses.
description: 20 pages, 8 figures. Several references added as well as comments on the r=1/4 case
Mapping the three-dimensional multi-band extinction and diffuse interstellar bands in the Milky Way with LAMOST
Creators: name: Yuan, Haibo
name: Liu, Xiaowei
name: Xiang, Maosheng
name: Huo, Zhiying
name: Zhang, Huihua
name: Huang, Yang
name: Zhang, Huawei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: With modern large scale spectroscopic surveys, such as the SDSS and LSS-GAC, Galactic astronomy has entered the era of millions of stellar spectra. Taking advantage of the huge spectroscopic database, we propose to use a "standard pair" technique to a) Estimate multi-band extinction towards sightlines of millions of stars; b) Detect and measure the diffuse interstellar bands in hundreds of thousands SDSS and LAMOST low-resolution spectra; c) Search for extremely faint emission line nebulae in the Galaxy; and d) Perform photometric calibration for wide field imaging surveys. In this contribution, we present some results of applying this technique to the SDSS data, and report preliminary results from the LAMOST data.
description: 6 pages, 5 figures, to appear in Proceedings of the IAU Symposium No. 298 "Setting the Scene for Gaia and LAMOST"
All AdS7 solutions of type II supergravity
Creators: name: Apruzzi, Fabio
name: Fazzi, Marco
name: Rosa, Dario
name: Tomasiello, Alessandro
Publisher: name: New York : Springer
Year: 2014
Subjects: subject: flux compactifications
subject: AdS-CFT correspondence
subject: superstring vacua
subject: generalize complex geometry
subject: supersymmetric solution
subject: pure spinor
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In M-theory, the only AdS7 supersymmetric solutions are AdS7 × S 4 and its orbifolds. In this paper, we find and classify new supersymmetric solutions of the type AdS7 × M 3 in type II supergravity. While in IIB none exist, in IIA with Romans mass (which does not lift to M-theory) there are many new ones. We use a pure spinor approach reminiscent of generalized complex geometry. Without the need for any Ansatz, the system determines uniquely the form of the metric and fluxes, up to solving a system of ODEs. Namely, the metric on M 3 is that of an S 2 fibered over an interval; this is consistent with the Sp(1) R-symmetry of the holographically dual (1,0) theory. By including D8 brane sources, one can numerically obtain regular solutions, where topologically M 3 ≅ S 3.
title: Preparation of background data for construction of a model of impurities transfer in the atmosphere
Creators: name: Stepanov, I.Yu.
name: Gudov, A.M.
Publisher: name: Scientific Research Centre "MachineStructure"
Year: 2019

description: The article considers one of the methods for preparing the initial data for constructing a model for solving the problem of transporting impurities in the atmosphere based on the analysis of satellite images. Aerial photographs of the studied area are used as sources. Object recognition is performed using the YOLO classifier using a convolutional neural network. Based on the constructed model, a numerical calculation is performed.
4DVAR by ensemble Kalman smoother
Creators: name: Mandel, Jan
name: Bergou, Elhoucine
name: Gratton, Serge
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 86A22, 62L12

description: We propose to use the ensemble Kalman smoother (EnKS) as linear least squares solver in the Gauss-Newton method for the large nonlinear least squares in incremental 4DVAR. The ensemble approach is naturally parallel over the ensemble members and no tangent or adjoint operators are needed. Further, adding a regularization term results in replacing the Gauss-Newton method, which may diverge, by^M the Levenberg-Marquardt method, which is known to be convergent. The regularization is implemented efficiently as an additional observation in the EnKS.
description: 9 pages
Neufunde bronzezeitlicher Waffen aus Südwestfalen
Creators: name: Zeiler, Manuel
name: Jansen, Moritz
Publisher: name: Archäologie in Westfalen-Lippe
Year: 2016

description: -
description: Archäologie in Westfalen-Lippe, ARCHÄOLOGIE IN WESTFALEN-LIPPE 2014 (2015)
Anchusa arvensis
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: M. arvensis X spicata (= M. gentilis L.) Cat. 284;442 (auctore Briquet). Kultiviert und verwildert. Subspontan in neuerer Zeit beobachtet: 2: Branson (Gams).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
AdS6 solutions of type II supergravity
Creators: name: Apruzzi, Fabio
name: Fazzi, Marco
name: Passias, Achilleas
name: Rosa, Dario
name: Tomasiello, Alessandro
Publisher: name: New York : Springer
Year: 2014
Subjects: subject: Flux Compactifications
subject: AdS-CFT Correspondence
subject: Pure Spinor
subject: Near-horizon Limit
subject: Massive IIA
subject: Supersymmetric Solution
subject: IIB Supergravity
subject: Eleven-dimensional Supergravity
subject: Two-dimensional Space
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Very few AdS6 × M 4 supersymmetric solutions are known: one in massive IIA, and two IIB solutions dual to it. The IIA solution is known to be unique; in this paper, we use the pure spinor approach to give a classification for IIB supergravity. We reduce the problem to two PDEs on a two-dimensional space Σ. M 4 is then a fibration of S 2 over Σ; the metric and fluxes are completely determined in terms of the solution to the PDEs. The results seem likely to accommodate near-horizon limits of (p, q)-fivebrane webs studied in the literature as a source of CFT5’s. We also show that there are no AdS6 solutions in eleven-dimensional supergravity.
Supersymmetric AdS5 solutions of massive IIA supergravity
Creators: name: Apruzzi, Fabio
name: Fazzi, Marco
name: Passias, Achilleas
name: Tomasiello, Alessandro
Publisher: name: New York : Springer
Year: 2015
Subjects: subject: Flux compactifications
subject: D-branes
subject: AdS-CFT Correspondence
subject: Universal Map
subject: Riemann Surface
subject: Euler Characteristic
subject: Massive IIA
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Motivated by a recently found class of AdS7 solutions, we classify AdS5 solutions in massive IIA, finding infinitely many new analytical examples. We reduce the general problem to a set of PDEs, determining the local internal metric, which is a fibration over a surface. Under a certain simplifying assumption, we are then able to analytically solve the PDEs and give a complete list of all solutions. Among these, one class is new and regular. These spaces can be related to the AdS7 solutions via a simple universal map for the metric, dilaton and fluxes. The natural interpretation of this map is that the dual CFT6 and CFT4 are related by twisted compactification on a Riemann surface Σ g . The ratio of their free energy coefficients is proportional to the Euler characteristic of Σ g . As a byproduct, we also find the analytic expression for the AdS7 solutions, which were previously known only numerically. We determine the free energy for simple examples: it is a simple cubic function of the flux integers.