cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Numerical solution of the 2+1 Teukolsky equation on a hyperboloidal and horizon penetrating foliation of Kerr and application to late-time decays
Creators: name: Harms, Enno
name: Bernuzzi, Sebastiano
name: Bruegmann, Bernd
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work we present a formulation of the Teukolsky equation for generic spin perturbations on the hyperboloidal and horizon penetrating foliation of Kerr recently proposed by Racz and Toth. An additional, spin-dependent rescaling of the field variable can be used to achieve stable, long-term, and accurate time-domain evolutions of generic spin perturbations. As an application (and a severe numerical test), we investigate the late-time decays of electromagnetic and gravitational perturbations at the horizon and future null infinity by means of 2+1 evolutions. As initial data we consider four combinations of (non-)stationary and (non-)compact-support initial data with a pure spin-weighted spherical harmonic profile. We present an extensive study of late time decays of axisymmetric perturbations. We verify the power-law decay rates predicted analytically, together with a certain "splitting" behaviour of the power-law exponent. We also present results for non-axisymmetric perturbations. In particular, our approach allows to study the behaviour of the late time decays of gravitational fields for nearly extremal and extremal black holes. For rapid rotation we observe a very prolonged, weakly damped, quasi-normal-mode phase. For extremal rotation the field at future null infinity shows an oscillatory behaviour decaying as the inverse power of time, while at the horizon it is amplified by several orders of magnitude over long time scales. This behaviour can be understood in terms of the superradiance cavity argument.
The GTZAN dataset: Its contents, its faults, their effects on evaluation, and its future use
Creators: name: Sturm, Bob L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Sound (cs.SD)
subject: FOS: Computer and information sciences

description: The GTZAN dataset appears in at least 100 published works, and is the most-used public dataset for evaluation in machine listening research for music genre recognition (MGR). Our recent work, however, shows GTZAN has several faults (repetitions, mislabelings, and distortions), which challenge the interpretability of any result derived using it. In this article, we disprove the claims that all MGR systems are affected in the same ways by these faults, and that the performances of MGR systems in GTZAN are still meaningfully comparable since they all face the same faults. We identify and analyze the contents of GTZAN, and provide a catalog of its faults. We review how GTZAN has been used in MGR research, and find few indications that its faults have been known and considered. Finally, we rigorously study the effects of its faults on evaluating five different MGR systems. The lesson is not to banish GTZAN, but to use it with consideration of its contents.
description: 29 pages, 7 figures, 6 tables, 128 references
Coevolution of dust, gas, and stars in galaxies - I. Spatial distributions and scaling-relations of dust and molecular hydrogen
Creators: name: Bekki, Kenji
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the time evolution of dust properties, molecular hydrogen (H_2) contents, and star formation histories in galaxies by using our original chemodynamical simulations. The simulations include the formation of dust in the stellar winds of supernovae (SNe) and asymptotic giant branch (AGB) stars, the growth and destruction processes of dust in the interstellar medium (ISM), the formation of polycyclic aromatic hydrocarbon (PAH) dust in carbon-rich AGB stars, the H_2 formation on dust grains, and the H_2 photo-dissociation due to far ultra-violet (FUV) light in a self-consistent manner. We focus mainly on disk galaxies with different total masses in this preliminary study. The principle results are as follows: The star formation histories of disk galaxies can be regulated by the time evolution of interstellar dust, mainly because the formation rates of H_2 can be controlled by dust properties. The observed correlation between dust-to-gas-ratios (D) and gas-phase oxygen abundances (A_O = 12+log(O/H)) can be reproduced reasonably well in the present models. The disks show negative radial gradients (i.e., larger in inner regions) of H_2 fraction (f_H2), PAH-to-dust mass ratio (f_PAH), D, and A_O and these gradients evolve with time. The surface-mass densities of dust (Sigma_dust) are correlated more strongly with the total surface gas densities than with those of H_2. Local gaseous regions with higher D are more likely to have higher f_H2 in individual disks and total H_2 masses correlate well with total dust masses. More massive disk galaxies are more likely to have higher D, f_PAH, and f_H2 and smaller dust-to-stellar mass ratios. We also compare between galactic star formation histories in the metallicity-dependent and dust-dependent star formation models and find no major differences.
description: 29 pages, 23 figures, accepted for publication in MNRAS
LCAAJ audio for location 54257 (Vilnius (Wilno), Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Vilnius (Wilno), Lithuania (54.687156, 25.279651)
LCAAJ audio for location 54265 (Smarhoń (Smorgonie), Belarus)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Smarhoń (Smorgonie), Belarus (54.476233, 26.398149)
title: Quantification of the need to retrofit freight wagon fleets in Germany and member states of the European Union in light of the differing legal frameworks
Creators: name: Liebing, Sascha
Publisher: name: Eisenbahn-Bundesamt
Year: 2019

description: At the timetable change 2020/2021, the operation of "noisy" freight wagons will be banned on the German rail network. The study determined the necessary needs for retrofitting composite brake blocks including the associated costs for the years 2018-2021 for various legal scenarios. In: EBA-Forschungsberichte, Bericht 2018-12 (Summary)
Kriging Interpolation Filter to Reduce High Density Salt and Pepper Noise
Creators: name: Jassim, Firas Ajil
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Image denoising is a critical issue in the field of digital image processing. This paper proposes a novel Salt & Pepper noise suppression by developing a Kriging Interpolation Filter (KIF) for image denoising. Gray-level images degraded with Salt & Pepper noise have been considered. A sequential search for noise detection was made using kXk window size to determine non-noisy pixels only. The non-noisy pixels are passed into Kriging interpolation method to predict their absent neighbor pixels that were noisy pixels at the first phase. The utilization of Kriging interpolation filter proves that it is very impressive to suppress high noise density. It has been found that Kriging Interpolation filter achieves noise reduction without loss of edges and detailed information. Comparisons with existing algorithms are done using quality metrics like PSNR and MSE to assess the proposed filter.
description: 6 pages, 10 figures, 2 tables
LCAAJ audio for location 54249 (Musninkai, Belarus)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Musninkai, Lithuania (54.946962, 24.841525)
Moving Beyond Lip Service
Creators: name: Verbeke, Demmy
Publisher: name: Zenodo
Year: 2022
Subjects: libraries, open science, open scholarship

description: There is wide consensus that the current system for scholarly communication is in crisis. We have known for years that the cost has become unsustainable and that this is further aggravated by the for-profit approach to achieve open access. More recently, we have become aware of the dangers of surveillance publishing, which has further strengthened the call for revitalising the role of the academic community in scholarly communication. In order to do so, we need to move from complaining about what is, to realising what could be. Universities, research libraries and individual researchers can all contribute their share. A wide array of real-life examples will showcase how this is currently already being done, and how institutions and researchers could make meaningful changes if these practices were adopted more widely.
Entropic anomaly and maximal efficiency of microscopic heat engines
Creators: name: Bo, Stefano
name: Celani, Antonio
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The efficiency of microscopic heat engines in a thermally heterogenous environment is considered. We show that, as a consequence of the recently discovered entropic anomaly, quasi-static engines, whose efficiency is maximal in a fluid at uniform temperature, have in fact vanishing efficiency in presence of temperature gradients. For slow cycles the efficiency falls off as the inverse of the period. The maximum efficiency is reached at a finite value of the cycle period that is inversely proportional to the square root of the gradient intensity. The relative loss in maximal efficiency with respect to the thermally homogeneous case grows as the square root of the gradient. As an illustration of these general results, we construct an explicit, analytically solvable example of a Carnot stochastic engine. In this thought experiment, a Brownian particle is confined by a harmonic trap and immersed in a fluid with a linear temperature profile. This example may serve as a template for the design of real experiments in which the effect of the entropic anomaly can be measured.
description: Supplementary Information provided as a separate pdf file. Follow the Other formats link
LCAAJ audio for location 54256 (Ashmyany, Belarus)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Ashmyany, Belarus (54.424346, 25.93516)
Pautas para fortalecer el trabajo colaborativo en MetaDocencia
Creators: name: MetaDocencia Team
Publisher: name: Zenodo
Year: 2022
Subjects: Pautas de trabajo
colaboración
organización interna
reuniones

description: Este documento establece una serie de pautas y compromisos para fortalecer el trabajo colaborativo, abierto y reproducible del equipo de MetaDocencia.
LCAAJ audio for location 54253 (Traby, Belarus)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Traby, Lithuania (54.158442, 25.908997)
LCAAJ audio for location 54241 (Liškiava, Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Liškiava, Lithuania (54.081189, 24.054947)
LCAAJ audio for location 54244 (Jieznas, Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Jieznas, Belarus (54.600332, 24.176504)
Investigation of the mechanical properties and corrosion behaviour of hybrid L 80 Type 1 and duplex steel joints produced by magnetically impelled arc butt welding
Creators: name: Hassel, Thomas
name: Maier, Hans Jürgen
name: Alkhimenko, Alexey
name: Davydov, Artem
name: Shaposhnikov, Nikita
name: Turichin, Gleb
name: Klimova, Olga
Publisher: name: Amsterdam : Elsevier
Year: 2022
Subjects: subject: Geothermal wells
subject: Borehole casing
subject: Tube welding
subject: Magnetically impelled arc butt welding (MIAB)
subject: Hybrid joining
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::621 | Angewandte Physik::621,3 | Elektrotechnik, Elektronik

description: In the field of deep geothermal energy, the mono-tube design will be increasingly used in the future, as significant cost savings can be expected in the production of boreholes up to depths of 6000 m. The previously used bolting of the pipe lengths by means of sleeves contributes significantly to the construction costs. In addition, there is an increased risk of failure for the sleeve bolting, especially if different materials have to be used in different layers for the purpose of increasing the corrosion resistance. Magnetically Impelled Arc Butt Welding (MIAB) was used for direct welding of pipe segments with complete elimination of socket bolting. In the process, the casing material (L80 Type 1), which is a cost-effective standard material, and a corrosion-resistant duplex steel (1.4462) were hybrid welded. The results show excellent properties both in terms of mechanical properties and corrosion resistance. It is shown that the advantages of the MIAB process in joining these different materials can successfully overcome the metallurgical challenges. This new approach for the production of borehole liners can contribute significantly to cost reduction in the construction of geothermal boreholes.
OH/IR stars and their superwinds as observed by the Herschel Space Observatory
Creators: name: Justtanont, K.
name: Teyssier, D.
name: Barlow, M. J.
name: Matsuura, M.
name: Swinyard, B.
name: Waters, L. B. F. M.
name: Yates, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Aim : In order to study the history of mass loss in extreme OH/IR stars, we observed a number of these objects using CO as a tracer of the density and temperature structure of their circumstellar envelopes. Method : Combining CO observations from the Herschel Space Observatory with those from the ground, we trace mass loss rates as a function of radius in five extreme OH/IR stars. Using radiative transfer modelling, we modelled the dusty envelope as well as the CO emission. The high-rotational transitions of CO indicate that they originate in a dense superwind region close to the star while the lower transitions tend to come from a more tenuous outer wind which is a result of the mass loss since the early AGB phase. Result : The models of the circumstellar envelopes around these stars suggest that they have entered a superwind phase in the past 200 - 500 years. The low 18O/17O (~ 0.1 compared to the solar abundance ratio of ~ 5) and 12C/13C (3-30 cf. the solar value of 89) ratios derived from our study support the idea that these objects have undergone hot-bottom burning and hence that they are massive M >= 5 solar-mass AGB stars.
description: 10 pages with 11 figures Accepted for publication by Astronomy & Astrophysics
An extension of assumed stress finite elements to a general hyperelastic framework
Creators: name: Viebahn, Nils
name: Schröder, Jörg
name: Wriggers, Peter
Publisher: name: Heidelberg : Springer Verlag
Year: 2019
Subjects: subject: Assumed stress element
subject: Hellinger–Reissner formulation
subject: Hourglassing
subject: Hyperelasticity
subject: Locking free
subject: Mixed FEM
subject: Nearly incompressibility
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: Assumed stress finite elements are known for their extraordinary good performance in the framework of linear elasticity. In this contribution we propose a mixed variational formulation of the Hellinger–Reissner type for hyperelasticity. A family of hexahedral shaped elements is considered with a classical trilinear interpolation of the displacements and different piecewise discontinuous interpolation schemes for the stresses. The performance and stability of the new elements are investigated and demonstrated by the analysis of several benchmark problems. In addition the results are compared to well known enhanced assumed strain elements. © 2019, The Author(s).
Single-file diffusion with non-thermal initial conditions
Creators: name: Lizana, Ludvig
name: Lomholt, Michael A.
name: Ambjörnsson, Tobias
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Single-file diffusion is a theoretically challenging many-body problem where the calculation of even the simplest observables, e.g. mean square displacement, for a tracer particle requires a heavy mathematical machinery. There is therefore a need for simple approaches which predict qualitatively correct behaviours. Here we put forward one such method which we use to investigate the influence of non-thermal initial conditions on the dynamics of a tracer particle. With our new approach we reproduce, up to scaling, several known asymptotic results for the tracer particle mean square displacement.
description: 4 pages, 1 figure
militärische Modernisierung der VR China
Creators: name: Weggel, Oskar
Publisher: name: China aktuell
Year: 2023

description: Auf einer Reihe von Kongressen zwischen 1975 und 1979 wurden Überlegungen zur militärischen Modernisierung angestellt, die sich wahrscheinlich mit drei Fragen befasst haben, nämlich: Was braucht China? Was hat es? Was kann es sich leisten? Eine Waffengleichheit mit der Sowjetunion wenigstens im asiatischen Raum scheidet angesichts der dafür benötigten Ausgaben in Höhe von 211 Mrd. US$ (Überschlagsrechnung des Autors) und angesichts der Unmöglichkeit, in kurzer Zeit einen Rückstand von rund 20 Jahren aufzuholen, a priori aus. Selbst eine Defensivparität käme noch zu teuer (rund 70 Mrd. US$). In der Tat hat sich China für 1979 mit Ausgaben von rund 20 Mrd. Yuan begnügt. Es verbleibt den chinesischen Militärplanern also lediglich die Möglichkeit einer "Denkzettelstrategie", die mit Hilfe der vorhandenen Kräfte, aber auch durch Behebung der drei empfindlichsten Mängel (Halbblindheit, Unbeweglichkeit und Abwehrschwäche) anzustreben wäre. Mit seinem Raketen-, Nuklear- und Satellitenpotential ist China schon heute eine Macht geworden, die ein militärisch "glaubhaftes" Antwortverhalten entwickeln kann. Die derzeit vorhandenen Lücken werden zur Zeit teilweise durch Beschaffung aus dem Ausland, überwiegend aber durch Eigenbauten gefüllt. Hierbei zeigen die Militärs Augenmaß: Sie haben eingesehen, dass ein wirtschaftlich starkes China langfristig auch militärisch besser dasteht, als ein auf Kosten der allgemeinen Wirtschaftsentwicklung bis an die Zähne gerüstetes Land. Industrie-, Wissenschafts- und Militärentwicklung sollen langfristig Hand in Hand gehen.
description: China aktuell, China aktuell - Januar 1980
Long distance coupling of a quantum mechanical oscillator to the internal states of an atomic ensemble
Creators: name: Vogell, B.
name: Kampschulte, T.
name: Rakher, M.T.
name: Faber, A.
name: Treutlein, P.
name: Hammerer, Klemens
name: Zoller, P.
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2015
Subjects: subject: optomechanics
subject: hybrid quantum system
subject: atomic ensemble
subject: internal state coupling
subject: resonator
subject: cavity
subject: spin
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We propose and investigate a hybrid optomechanical system consisting of a micro-mechanical oscillator coupled to the internal states of a distant ensemble of atoms. The interaction between the systems is mediated by a light field which allows the coupling of the two systems in a modular way over long distances. Coupling to internal degrees of freedom of atoms opens up the possibility to employ high-frequency mechanical resonators in the MHz to GHz regime, such as optomechanical crystal structures, and to benefit from the rich toolbox of quantum control over internal atomic states. Previous schemes involving atomic motional states are rather limited in both of these aspects. We derive a full quantum model for the effective coupling including the main sources of decoherence. As an application we show that sympathetic ground-state cooling and strong coupling between the two systems is possible.
LCAAJ audio for location 54234 (Vilkaviškis, Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Vilkaviškis, Lithuania (54.651945, 23.035155)
Generalized cluster states based on finite groups
Creators: name: Brell, Courtney G.
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2015
Subjects: subject: measurement-based quantum computation
subject: fault-tolerant quantum computation
subject: topological computation
subject: tolerant quantum computation
subject: error-correcting codes
subject: classical simulations
subject: normalizer circuits
subject: systems
subject: anyons
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We define generalized cluster states based on finite group algebras in analogy to the generalization of the toric code to the Kitaev quantum double models. We do this by showing a general correspondence between systems with CSS structure and finite group algebras, and applying this to the cluster states to derive their generalization. We then investigate properties of these states including their projected entangled pair state representations, global symmetries, and relationship to the Kitaev quantum double models. We also discuss possible applications of these states.
Natural Light Cloaking for Aquatic and Terrestrial Creatures
Creators: name: Chen, Hongsheng
name: Zheng, Bin
name: Shen, Lian
name: Wang, Huaping
name: Zhang, Xianmin
name: Zheludev, Nikolay
name: Zhang, Baile
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A cloak that can hide living creatures from sight is a common feature of mythology but still remains unrealized as a practical device. To preserve the phase of wave, the previous cloaking solution proposed by Pendry \emph{et al.} required transforming electromagnetic space around the hidden object in such a way that the rays bending around it have to travel much faster than those passing it by. The difficult phase preservation requirement is the main obstacle for building a broadband polarization insensitive cloak for large objects. Here, we suggest a simplifying version of Pendry's cloak by abolishing the requirement for phase preservation as irrelevant for observation in incoherent natural light with human eyes that are phase and polarization insensitive. This allows the cloak design to be made in large scale using commonly available materials and we successfully report cloaking living creatures, a cat and a fish, in front of human eyes.
description: 13 pages, 3 figures
Improved Foods Using Enzymes from Basidiomycetes
Creators: name: Berger, Ralf G.
name: Ersoy, Franziska
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: Basidiomycota
subject: fermentation process
subject: lipase
subject: esterase
subject: glycosidase
subject: peptidase
subject: oxidoreductase
subject: colourant
subject: flavour
subject: genetic engineering
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: Within the kingdom of fungi, the division Basidiomycota represents more than 30,000 species, some with huge genomes indicating great metabolic potential. The fruiting bodies of many basidiomycetes are appreciated as food (“mushrooms”). Solid-state and submerged cultivation processes have been established for many species. Specifically, xylophilic fungi secrete numerous enzymes but also form smaller metabolites along unique pathways; both groups of compounds may be of interest to the food processing industry. To stimulate further research and not aim at comprehensiveness in the broad field, this review describes some recent progress in fermentation processes and the knowledge of fungal genetics. Processes with potential for food applications based on lipases, esterases, glycosidases, peptidases and oxidoreductases are presented. The formation and degradation of colourants, the degradation of harmful food components, the formation of food ingredients and particularly of volatile and non-volatile flavours serve as examples. In summary, edible basidiomycetes are foods—and catalysts—for food applications and rich donors of genes to construct heterologous cell factories for fermentation processes. Options arise to support the worldwide trend toward greener, more eco-friendly and sustainable processes.
LCAAJ audio for location 54236 (Prienai, Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Prienai, Lithuania (54.638358, 23.946801)
Subextensions for a permutation PSL(2,q)-module
Creators: name: Zavarnitsine, Andrei
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: K-Theory and Homology (math.KT)
subject: FOS: Mathematics
subject: 20D06, 20J06, 20B25

description: Using cohomological methods, we prove the existence of a subgroup isomorphic to SL(2,q), q = -1 (mod 4), in the permutation module for PSL(2,q) in characteristic 2 that arises from the action on the projective line. A similar problem for q = 1 (mod 4) is reduced to the determination of certain first cohomology groups.
title: Assessment of the Pacific Sardine Resource in 2019 for U.S. Management in 2019-20
Creators: name: Hill, Kevin T.
name: Zwolinski, Juan P.
name: Crone, Paul R.
Publisher: name: United States. National Marine Fisheries Service Southwest Fisheries Science Center (U.S.) University of California, Santa Cruz
Year: 2019

description: NOAA technical memorandum NMFS
NOAA-TM-NMFS-SWFSC ; 615
LCAAJ audio for location 54229 (Kudirkos Naumiestis, Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Kudirkos Naumiestis, Lithuania (54.77499, 22.866512)
Pulsed high harmonic generation of light due to pumped Bloch oscillations in noninteracting metals
Creators: name: Freericks, J. K.
name: Liu, A. Y.
name: Kemper, A. F.
name: Devereaux, T. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optics (physics.optics)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We derive a simple theory for high-order harmonic generation due to pumping a noninteracting metal with a large amplitude oscillating electric field. The model assumes that the radiated light field arises from the acceleration of electrons due to the time-varying current generated by the pump, and also assumes that the system has a constant density of photoexcited carriers, hence it ignores the dipole excitation between bands (which would create carriers in semiconductors). We examine the circumstances under which odd harmonic frequencies would be expected to dominate the spectrum of radiated light, and we also apply the model to real materials like ZnO, for which high-order harmonic generation has already been demonstrated in experiments.
description: (7 pages, 7 figures, Proceedings of the Frontiers of Quantum and Mesoscopic Thermodynamics 2011 conference)
A proposal for self-correcting stabilizer quantum memories in 3 dimensions (or slightly less)
Creators: name: Brell, Courtney G.
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2016
Subjects: subject: quantum memory
subject: topological order
subject: topological codes
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We propose a family of local CSS stabilizer codes as possible candidates for self-correcting quantum memories in 3D. The construction is inspired by the classical Ising model on a Sierpinski carpet fractal, which acts as a classical self-correcting memory. Our models are naturally defined on fractal subsets of a 4D hypercubic lattice with Hausdorff dimension less than 3. Though this does not imply that these models can be realized with local interactions in R3, we also discuss this possibility. The X and Z sectors of the code are dual to one another, and we show that there exists a finite temperature phase transition associated with each of these sectors, providing evidence that the system may robustly store quantum information at finite temperature.
State of Charge Based Characteristic Diagram Control for Energy Storage Systems within Industrial DC Microgrids
Creators: name: Männel, Alexander
name: Knöchelmann, Elias
name: Tappe, Svenja
name: Ortmaier, Tobias
Publisher: name: Piscataway, NJ : IEEE
Year: 2019
Subjects: subject: DC Microgrids
subject: Industrial Production
subject: Energy Storage System
subject: Droop Curve Control
subject: Characteristic Diagram
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: In this paper, a state of charge (SoC) based characteristic diagram control concept for energy storage systems (ESS) within an industrial direct current (DC) microgrid is proposed. The inputs are the SoC of the ESS and the terminal voltage of the DC microgrid. The output is the charge and discharge current for the converter, which connects the ESS with the DC microgrid. An appropriate design concept for the characteristic diagram is then investigated to achieve a flexible control reacting on changing conditions within the DC microgrid. These could be a temporary overload, due to a changing number of grid participants or an additional feed-in through a photovoltaic (PV) system. The characteristic diagram design concept is even applicable without a deep knowledge of the load profile of the DC microgrid. The concept was analyzed and evaluated based on simulations with load profiles from robot cells. The results show that the SoC depends on the current load of the DC microgrid. If the load returns to average, the SoC of the ESS inclines back to the nominal SoC, which is pre-defined by the grid operator. Furthermore, in case of an appropriate design of the characteristic diagram, it can protect the ESS against overcharging or deep discharging.
The Stability of BVRI Comparison Stars Near Selected TeV Blazars
Creators: name: Pace, Cameron J.
name: Pearson, Richard L.
name: Moody, J. Ward
name: Joner, Michael D.
name: Little, Bret
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We have measured Johnson BV and Cousins RI magnitudes for comparison stars near five TeV blazars. We compare our values with published values, spanning 25 years in some cases, to identify those stars that are most likely proven stable. To avoid zero-point offsets mimicking long-term variability, we based our analysis on the standard deviation between measurements after a mean offset between data sets was removed. We found most stars to be stable at the 0.04 magnitude level. We confirm two stars as variable and identify two others as possibly being variable. In each of the five fields there are at least two stars, and typically many more, that show no evidence of variability.
LCAAJ audio for location 54222 (Przerośl, Poland)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Przerośl, Poland (54.253308, 22.659339)
title: БИОХИМИЧЕСКИЕ ПОКАЗАТЕЛИ КРОВИ ОСЕТРОВЫХ РЫБ ПРИ ВЫРАЩИВАНИИ В РАЗЛИЧНЫХ БАССЕЙНАХ. СБОРНИК НАУЧНЫХ ТРУДОВ КНЦЗВ. - 2019. - Т. 8. - № 2
Creators: name: Максим , Екатерина
name: Юрин , Денис
Publisher: name: ФГБНУ КНЦЗВ
Year: 2019

description: Целью проведенных исследований являлась сравнительная оценка эффективности рыбоводных емкостей различной конструкции для выращивания осетровых рыб. На основании проведенных исследований можно сделать вывод, что условия содержания рыбы во всех изучаемых бассейнах не оказывали влияния на обменные процессы организма и благоприятствовали формированию оптимального биологического статуса молоди осетровых.
description: The objective of the study was a comparative assessment of the efficiency of fish-breeding tanks of various designs for sturgeon rearing. On the basis of the conducted research, it can be concluded that the conditions of fish in all the studied basins did not affect the metabolic processes of the body and favored the formation of the optimal biological status of sturgeon fry.
The Phenolics and Antioxidant Properties of Black and Purple versus White Eggplant Cultivars
Creators: name: Colak, Nesrin
name: Kurt-Celebi, Aynur
name: Gruz, Jiri
name: Strnad, Miroslav
name: Hayirlioglu-Ayaz, Sema
name: Choung, Myoung-Gun
name: Esatbeyoglu, Tuba
name: Ayaz, Faik Ahmet
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: aubergine
subject: Solanum melongena
subject: fruit
subject: anthocyanin
subject: phenolic acid
subject: antioxidant capacity
subject: α-amylase
subject: diabetes
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The total phenolic content, anthocyanins, phenolic acids, antioxidant capacity and α-amylase inhibitory activity of black (Aydin Siyahi), purple (Kadife Kemer) and white (Trabzon Kadife) eggplants grown in Turkey were subjected to a comparative investigation. The black cultivar exhibited the highest total phenolic (17,193 and 6552 mg gallic acid equivalent/kg fw), flavonoid (3019 and 1160 quercetin equivalent/kg fw) and anthocyanin (1686 and 6167 g delphinidin-3-O-glucoside equivalent/kg fw) contents in crude extracts of the peel and pulp. The majority of the caffeic acid was identified in the ester (2830 mg/kg fw) and ester-bound (2594 mg/kg fw) forms in the peel of ‘Kadife Kemer’ and in the glycoside form (611.9 mg/kg fw) in ‘Aydin Siyahi’, as well as in the pulp of these two eggplants. ‘Kadife Kemer’ (purple eggplant) contained the majority of the chlorogenic acid in free form (27.55 mg/kg fw), compared to ‘Aydin Siyahi’ in the ester (7.82 mg/kg fw), glycoside (294.1 mg/kg dw) and ester-bound (2.41 mg/kg fw) forms. The eggplant cultivars (peel and pulp, mg/kg fw) exhibited a relatively high delphinidin-3-O-rutinoside concentration in the peel of ‘Aydin Siyahi’ (avg. 1162), followed by ‘Kadife Kemer’ (avg. 336.6), and ‘Trabzon Kadife’ (avg. 215.1). The crude phenolic extracts of the eggplants exhibited the highest antioxidant capacity values (peel and pulp, µmoL Trolox equivalent/kg fw) of 2,2-diphenyl-1-picrylhydrazyl (DPPH, 8156 and 2335) and oxygen radical absorbance capacity (ORAC, 37,887 and 17,648). The overall results indicate that black and purple eggplants are the cultivars with greater potential benefits in terms of their phenolics and antioxidant values than the white eggplant.
title: Kunsttopografien globaler Migration: Orte, Räume und institutionelle Kontexte transitorischer Kunsterfahrung. Editorial
Creators: name: Dogramaci, Burcu
name: Mersmann, Birgit
name: Minta, Anna
name: Schieren, Mona
Publisher: name: University Library Heidelberg
Year: 2015

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 43, Nr. 2 (2015): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Rigorous Test of Non-conformal Holography: Wilson Loops in N=2* Theory
Creators: name: Buchel, Alex
name: Russo, Jorge G.
name: Zarembo, Konstantin
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: N=2* gauge theory in four space-time dimensions arises as a deformation of the parent N=4 supersymmetric Yang-Mill theory under which its hypermultiplet acquires a mass. This theory, on the one hand, has a known supergravity dual and on the other hand is amenable to localization. We explain, using localization, a dynamical selection of the supergravity Coulomb branch vacuum at large N. We also demonstrate that large Wilson loops obey perimeter law, again finding exact match between direct field-theory calculations and string theory. Additionally, we compute free energy at large 't Hooft coupling.
description: 15 pages, 1 figure
title: Präsenz der Zeitgenossen 5. Edgar Hofschen. Modifikation. Ausstellung im Germanischen Nationalmuseum und in der Schmidt-Bank-Galerie, Lorenzer Platz 29 vom 4. 2. - 4. 4. 1983
Creators: name: Thesing, Susanne
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden / not available]
LCAAJ audio for location 54233 (Veisiejai, Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Veisiejai, Lithuania (54.101241, 23.693665)
Toxicity, Antioxidant Activity, and Phytochemicals of Basil (Ocimum basilicum L.) Leaves Cultivated in Southern Punjab, Pakistan
Creators: name: Nadeem, Hafiz Rehan
name: Akhtar, Saeed
name: Sestili, Piero
name: Ismail, Tariq
name: Neugart, Susanne
name: Qamar, Muhammad
name: Esatbeyoglu, Tuba
Publisher: name: Basel : MDPI
Year: 2022
Subjects: subject: Artemia salina
subject: brine shrimp
subject: coumarin
subject: DPPH
subject: FRAP
subject: mass spectrometry
subject: polyphenol
subject: radical scavenging
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::600 | Technik::640 | Hauswirtschaft und Familienleben

description: Basil (Ocimum basilicum L.) is one of the most common aromatic herbs, a rich source of bioactive compounds, and is used extensively to add aroma and flavor to food. The leaves, both in fresh and dried form, are used as a culinary ingredient in different cultures. O. basilicum is also famous for its therapeutic potential and preservation effects. The present study investigated the cytotoxicity of basil at three different growth stages (GS), i.e., GS-1 (58 days of growth), GS-2 (69 days of growth), and GS-3 (93 days of growth) using the brine shrimp lethality assay. The results revealed that cytotoxicity was influenced by GS and the concentration of extracts. Aqueous extracts of basil at a concentration of 10 to 1000 µg/mL did not show notable toxicity. The lowest mortality rate, i.e., 8.9%, was recorded for GS-2 at the highest tested dose of basil extracts. The mortality rate at GS-1, GS-2, and GS-3 was found to be 26.7 ± 3.34%, 8.91 ± 0.10%, and 16.7 ± 0.34%, respectively, at 1000 µg/mL. GS-2 basil powder with the lowest toxicological risk was extracted with different solvents, viz., n-hexane, dichloromethane, ethanol, and water. The highest concentration of plant secondary metabolites including total phenolic acid, flavonoids, and tannin content was observed in ethanol extracts. Ethanol extracts also exhibited the highest antioxidant activity in DPPH, FRAP and H2O2 assays. LC-ESI-MS/MS analysis presented ethanol extracts of basil as a promising source of known health-promoting and therapeutic compounds such as rosmarinic acid, ellagic acid, catechin, liquiritigenin, and umbelliferone. The results suggest basil, a culinary ingredient, as a potential source of bioactive compounds which may offer an array of health promoting and therapeutic properties.
LCAAJ audio for location 54226 (Virbalis, Lithuania)
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021
Subjects: Yiddish language--Dialects
Yiddish language--Phonology
Language surveys
Ashkenazim--Social life and customs
Jews--Civilization

description: Virbalis, Lithuania (54.629733, 22.815881)
Granular Convection in Microgravity
Creators: name: Murdoch, N.
name: Rozitis, B.
name: Nordstrom, K.
name: Green, S. F.
name: Michel, P.
name: de Lophem, T. -L.
name: Losert, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We investigate the role of gravity on convection in a dense granular shear flow. Using a microgravity modified Taylor-Couette shear cell under the conditions of parabolic flight microgravity, we demonstrate experimentally that secondary, convective-like flows in a sheared granular material are close to zero in microgravity and enhanced under high-gravity conditions, though the primary flow fields are unaffected by gravity. We suggest that gravity tunes the frictional particle-particle and particle-wall interactions, which have been proposed to drive the secondary flow. In addition, the degree of plastic deformation increases with increasing gravitational forces, supporting the notion that friction is the ultimate cause.
description: 13 pages, 6 figures
Application of an online-biomass sensor in an optical multisensory platform prototype for growth monitoring of biotechnical relevant microorganism and cell lines in single-use shake flasks
Creators: name: Ude, Christian
name: Schmidt-Hager, Jörg
name: Findeis, Michael
name: John, Gernot Thomas
name: Scheper, Thomas
name: Beutel, Sascha
Publisher: name: Basel : MDPI AG
Year: 2014
Subjects: subject: animal
subject: biochemical oxygen demand
subject: cell count
subject: cell proliferation
subject: cell size
subject: CHO cell line
subject: Cricetulus
subject: densitometry
subject: device failure analysis
subject: devices
subject: equipment design
subject: online system
subject: photometry
subject: physiology
subject: refractometry
subject: system analysis
subject: Animals
subject: Biological Oxygen Demand Analysis
subject: Cell Count
subject: Cell Proliferation
subject: Cell Size
subject: CHO Cells
subject: Densitometry
subject: Equipment Design
subject: Equipment Failure Analysis
subject: Online Systems
subject: Photometry
subject: Refractometry
subject: Systems Integration
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: In the context of this work we evaluated a multisensory, noninvasive prototype platform for shake flask cultivations by monitoring three basic parameters (pH, pO2 and biomass). The focus lies on the evaluation of the biomass sensor based on backward light scattering. The application spectrum was expanded to four new organisms in addition to E. coli K12 and S. cerevisiae [1]. It could be shown that the sensor is appropriate for a wide range of standard microorganisms, e.g., L. zeae, K. pastoris, A. niger and CHO-K1. The biomass sensor signal could successfully be correlated and calibrated with well-known measurement methods like OD600, cell dry weight (CDW) and cell concentration. Logarithmic and Bleasdale-Nelder derived functions were adequate for data fitting. Measurements at low cell concentrations proved to be critical in terms of a high signal to noise ratio, but the integration of a custom made light shade in the shake flask improved these measurements significantly. This sensor based measurement method has a high potential to initiate a new generation of online bioprocess monitoring. Metabolic studies will particularly benefit from the multisensory data acquisition. The sensor is already used in labscale experiments for shake flask cultivations.
Chemistry in flow systems III
Creators: name: Kirschning, Andreas
Publisher: name: Frankfurt am Main : Beilstein-Institut Zur Förderung der Chemischen Wissenschaften
Year: 2013
Subjects: subject: Flow chemistry
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [No abstract available]
Replication package for article 'Machine Learning based Invariant Generation: A Framework and Reproducibility Study'
Creators: name: Haltermann, Jan
name: Wehrheim, Heike
Publisher: name: Zenodo
Year: 2021

description: This artifact contains all information of the results reported and needed for replication. Machine Learning Based Invariant Generation: A Framework and Reproducibility Study Abstract—Software verification is the task of proving correct-
 ness of programs against specified requirements. Key to software
 verification is the automatic generation of loop invariants. In
 recent years, template- and logic-based approaches to invariant
 generation have been complemented by machine learning (ML)
 techniques. A number of proposals for such techniques exist
 today. Although all authors perform experimental evaluations
 of their proposals, comparability of the core techniques is nev-
 ertheless hindered by differing benchmarks, specific tunings of
 hyperparameters, missing public availability as well as specialized
 preprocessings and runtime environments.
 In this paper, we present the modular framework MIGML
 for experimentation with and comparison of ML invariant
 generators. MIGML contains the core ingredients of ML based
 invariant generators (i.e. a teacher and a learner) as instantiable
 components with clear-cut interfaces. This conceptually novel
 framework allows for a reproducibility study of four existing
 ML invariant generators: we re-implement the teacher and
 learner components of the four techniques within our framework
 which permits a comparison on equal grounds. We are able
 to successfully reproduce and partially confirm the reported
 results. We furthermore experiment with novel combinations of
 components, e.g. employ the data generator within the teacher
 of technique A together with the learner of technique B. As a
 result, we observe that such combinations can lead to an overall
 enhanced effectiveness. The paper is available here: https://ieeexplore.ieee.org/document/9787863 A minimal version is also published (DOI: 10.5281/zenodo.5524131).