cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Letter from Barbara Hepworth to Herbert Read, May 13, 1952
Creators: name: Hepworth, Barbara, 1903-1975
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Artists
valueUri: http://id.worldcat.org/fast/817559
subject: Hepworth, Barbara, 1903-1975
valueUri: http://id.worldcat.org/fast/1898202
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Women artists
valueUri: http://id.worldcat.org/fast/1177159
subject: Artists--Correspondence
valueUri: http://id.worldcat.org/fast/817571
subject: Art movements
valueUri: http://id.worldcat.org/fast/815613
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778

description: Part of a collection of letters to Sir Herbert Read from Dame Barbara Hepworth (English artist and sculptor and, along with Read, a member of the modern art movement Unit One founded by Paul Nash), that span the time period of 1940 to 1965 and discuss their artistic and literary endeavors, philosophical and political views, and personal lives. Hepworth discusses the layout of her book that Read will be writing the preface to. Reg Butlers is mentioned.
Magnetic Spiral Arms in Galaxy Halos
Creators: name: Henriksen, R. N.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We seek the conditions for a {\it steady} mean field galactic dynamo. The parameter set is reduced to those appearing in the $α^2$ and $α/ω$ dynamo, namely velocity amplitudes, and the ratio of sub-scale helicity to diffusivity. The parameters can be allowed to vary on conical spirals. We analyze the mean field dynamo equations in terms of scale invariant logarithmic spiral modes and special exact solutions. Compatible scale invariant gravitational spiral arms are introduced and illustrated in an appendix, but the detailed dynamical interaction with the magnetic field is left for another work. As a result of planar magnetic spirals `lifting' into the halo, multiple sign changes in average rotation measures forming a regular pattern on each side of the galactic minor axis, are predicted. Such changes have recently been detected in the CHANG-ES survey.
description: 44 double-spaced pages, 10 figures plus 1 appendix figure, accepted to MNRAS
Global analysis for the LISA gravitational wave observatory
Creators: name: Robson, Travis
name: Cornish, Neil
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Laser Interferometer Space Antenna (LISA) will explore the source-rich milli-Hertz band of the gravitational wave spectrum. In contrast to ground based detectors, where typical signals are short-lived and discrete, LISA signals are typically long-lived and over-lapping, thus requiring a global data analysis solution that is very different to the source-by-source analysis that has been developed for ground based gravitational wave astronomy. Across the LISA band, gravitational waves are both signals {\em and} noise. The dominant contribution to this so-called confusion noise (better termed unresolved signal noise) is expected to come from short period galactic white dwarf binaries, but all sources, including massive black hole binaries and extreme mass ratio captures will also contribute. Previous estimates for the galactic confusion noise have assumed perfect signal subtraction. Here we provide analytic estimates for the signal subtraction residuals and the impact they have on parameter estimation while for the first time incorporating the effects of noise modeling. The analytic estimates are found using a maximum likelihood approximation to the full global Bayesian analysis. We find that while the confusion noise is {\em lowered} in the global analysis, the waveform errors for individual sources are {\em increased} relative to estimates for isolated signals. We provide estimates for how parameter estimation errors are inflated from various parts of a global analysis.
description: 24 pages, 10 figures
Image of Inverted World Tree on the Stone Slab and Vessels of the Bronze Age
Creators: name: Vodolazhskaya, L. N.
name: Larenok, P. A.
name: Nevsky, M. Yu.
Publisher: name: arXiv
Year: 2016
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: The article presents the results of the study of petroglyphs on a unique stone slab discovered near the kurgan 1 of the kurgan field Varvarinsky I (Rostov Oblast, Russia). Analysis of features of the location and style of petroglyph "tree" showed that the branches could determine semi-minor semiaxes m of the "dial" ellipses of analemmatic sundials with semi-major axis M = 24.2 cm for medium and high (northern) latitudes up to the North Pole and "tree" marks the direction to the North. The desire to construct a tool with which it was possible to build a "dial" for analemmatic sundial for different latitude up to the latitude of the North Pole could appear under the influence of the dominant mythological ideas about sacred geography of the surrounding world in which the North is the World Mountain, World Tree or the abode of the gods. In the article the authors conclude that the petroglyph "tree" on Varvarinsky slab marks the direction to the North as a projection of the North Pole of the world on the earth's surface, which simulates the slab. Petroglyph is an image of an inverted World Tree, when viewed from the gnomon / man. The trunk of the Tree corresponds to the astronomical world axis, and its branches symbolize the visible daily path of the Sun and, perhaps, the night paths of stars across the sky at different latitudes. During the research was carried out a comparative analysis of the petroglyph "tree" with images of the inverted tree on the Srubna vessels. According to the analysis it was concluded that a mythical World Tree of Srubna population is likely to be a tree of pine family. Sign of the inverted tree on the Srubna vessels has been interpreted by as a symbol of the direction of the North and / or the north pole of the world; and accompanying signs were interpreted as symbols of circumpolar stars and constellations (asterisms).
description: archaeoastronomy
Glassy dynamics in disordered oscillator chains
Creators: name: Senanian, Alen
name: Narayan, Onuttom
Publisher: name: arXiv
Year: 2017
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The escape of energy injected into one site in a disordered chain of nonlinear oscillators is examined numerically. When the disorder has a `fractal' pattern, the decay of the residual energy at the injection site can be fit to a stretched exponential with an exponent that varies continuously with the control parameter. At low temperature, we see evidence that energy can be trapped for an infinte time at the original site, i.e. classical many body localization.
Gérer, partager et interroger grâce à Wikibase des référentiels d'autorité pour la recherche : l'exemple de data.biblissima
Creators: name: Robineau, Régis
Publisher: name: Zenodo
Year: 2022
Subjects: biblissima
wikibase
référentiels
fichier d'autorités
wikidata

description: Présentation donnée le 21 avril 2022 dans le cadre du Webinaire Wikidata organisé par le groupe de travail "Atelier Données" de la Mission pour les Initiatives Transverses et Interdisciplinaires du CNRS (https://gt-atelier-donnees.miti.cnrs.fr). L'enregistrement vidéo est aussi disponible sur Canal-U : https://www.canal-u.tv/116615
POLOCALC: a Novel Method to Measure the Absolute Polarization Orientation of the Cosmic Microwave Background
Creators: name: Nati, Federico
name: Devlin, Mark J.
name: Gerbino, Martina
name: Johnson, Bradley R.
name: Keating, Brian
name: Pagano, Luca
name: Teply, Grant
Publisher: name: arXiv
Year: 2017
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We describe a novel method to measure the absolute orientation of the polarization plane of the CMB with arcsecond accuracy, enabling unprecedented measurements for cosmology and fundamental physics. Existing and planned CMB polarization instruments looking for primordial B-mode signals need an independent, experimental method for systematics control on the absolute polarization orientation. The lack of such a method limits the accuracy of the detection of inflationary gravitational waves, the constraining power on the neutrino sector through measurements of gravitational lensing of the CMB, the possibility of detecting Cosmic Birefringence, and the ability to measure primordial magnetic fields. Sky signals used for calibration and direct measurements of the detector orientation cannot provide an accuracy better than 1 deg. Self-calibration methods provide better accuracy, but may be affected by foreground signals and rely heavily on model assumptions. The POLarization Orientation CALibrator for Cosmology, POLOCALC, will dramatically improve instrumental accuracy by means of an artificial calibration source flying on balloons and aerial drones. A balloon-borne calibrator will provide far-field source for larger telescopes, while a drone will be used for tests and smaller polarimeters. POLOCALC will also allow a unique method to measure the telescopes' polarized beam. It will use microwave emitters between 40 and 150 GHz coupled to precise polarizing filters. The orientation of the source polarization plane will be registered to sky coordinates by star cameras and gyroscopes with arcsecond accuracy. This project can become a rung in the calibration ladder for the field: any existing or future CMB polarization experiment observing our polarization calibrator will enable measurements of the polarization angle for each detector with respect to absolute sky coordinates.
description: 15 pages, 5 figures, Accepted by Journal of Astronomical Instrumentation
Static and Dynamic Magnetic Properties of FeMn/Pt Multilayers
Creators: name: Luo, Ziyan
name: Yang, Yumeng
name: Xu, Yanjun
name: Zhang, Mengzhen
name: Xu, Baoxi
name: Chen, Jingsheng
name: Wu, Yihong
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recently we have demonstrated the presence of spin-orbit toque in FeMn/Pt multilayers which, in combination with the anisotropy field, is able to rotate its magnetization consecutively from 0o to 360o without any external field. Here, we report on an investigation of static and dynamic magnetic properties of FeMn/Pt multilayers using combined techniques of magnetometry, ferromagnetic resonance, inverse spin Hall effect and spin Hall magnetoresistance measurements. The FeMn/Pt multilayer was found to exhibit ferromagnetic properties, and its temperature dependence of saturation magnetization can be fitted well using a phenomenological model by including a finite distribution in Curie temperature due to subtle thickness variations across the multilayer samples. The non-uniformity in static magnetic properties is also manifested in the ferromagnetic resonance spectra, which typically exhibit a broad resonance peak. A damping parameter of around 0.106 is derived from the frequency dependence of ferromagnetic resonance linewidth, which is comparable to the reported values for other types of Pt-based multilayers. Clear inverse spin Hall signals and spin Hall magnetoresistance have been observed in all samples below the Curie temperature, which corroborate the strong spin-orbit torque effect observed previously.
description: 30 pages, 8 figures
Letter from Barbara Hepworth to Herbert Read, January 18, 1953
Creators: name: Hepworth, Barbara, 1903-1975
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Art movements
valueUri: http://id.worldcat.org/fast/815613
subject: Artists
valueUri: http://id.worldcat.org/fast/817559
subject: Artists--Correspondence
valueUri: http://id.worldcat.org/fast/817571
subject: Women artists
valueUri: http://id.worldcat.org/fast/1177159
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386
subject: Hepworth, Barbara, 1903-1975
valueUri: http://id.worldcat.org/fast/1898202
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778

description: Part of a collection of letters to Sir Herbert Read from Dame Barbara Hepworth (English artist and sculptor and, along with Read, a member of the modern art movement Unit One founded by Paul Nash), that span the time period of 1940 to 1965 and discuss their artistic and literary endeavors, philosophical and political views, and personal lives. Hepworth discusses the meaning and purpose of sculpture.
The Prototype of Ancient Analemmatic Sundials (Rostov Oblast, Russia)
Creators: name: Vodolazhskaya, L. N.
name: Larenok, P. A.
name: Nevsky, M. Yu
Publisher: name: arXiv
Year: 2016
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: The article presents the results of a study of petroglyphs on a unique stone slab discovered near the kurgan 1 of the kurgan field Varvarinsky I (Rostov Oblast, Russia). During the study was done comparing it with plates of Srubna burials on which were depicted the petroglyphs. Similar features for all the considered slabs are elliptically arranged wells. Groove made to Varvarinsky stone slab, has the same parameters as the ellipse from the wells on the slab of the kurgan field Tavriya -1, discovered in the Rostov region, too. With the help of astronomical methods previously been proved that elliptically located wells on the Srubna slabs are hour markers of analemmatic sundial. By results of the use of similar methods to study complex of petroglyphs on Varvarinsky slab, it was concluded that the slab could be used for development of the technology of markup of sundial on different geographical latitudes. Also, Varvarinsky slab could serve as a model example for a markup of the ellipse on which subsequently extorted wells for latitudes, close to the latitude of the place of slab detection. Thus, Varvarinsky stone slab is the prototype of analemmatic sundials, discovered in the Rostov and Donetsk oblasts. analemmatic sundial, srubna burial, slab, wells, gnomon, model sample, archaeoastronomy.
Inhomogeneous charged pion condensation in chiral asymmetric dense quark matter in the framework of NJL$_2$ model
Creators: name: Khunjua, T. G.
name: Klimenko, K. G.
name: Zhokhov, R. N.
name: Zhukovsky, V. C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we investigate the phase structure of a (1+1)-dimensional quark model with four-quark interaction and in the presence of baryon ($μ_B$), isospin ($μ_I$) and chiral isospin ($μ_{I5}$) chemical potentials. Spatially inhomogeneous chiral density wave (for chiral condensate) and single wave (for charged pion condensate) approaches are used. It is established that in the large-$N_c$ limit ($N_c$ is the number of colored quarks) there exists a duality correspondence between the chiral symmetry breaking phase and the charged pion condensation (PC) one. Moreover, it is shown that inhomogeneous charged PC phase with nonzero baryon density is induced in the model by arbitrary small values of the chemical potential $μ_{I5}$ (for a rather large region of $μ_B$ and $μ_I$).
description: 16 pages, 7 figures; typos corrected, new figure, references added, discussions added, accepted for publication in PRD
A high-order nodal discontinuous Galerkin method for nonlinear fractional Schrödinger type equations
Creators: name: Aboelenen, Tarek
Publisher: name: arXiv
Year: 2017
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We propose a nodal discontinuous Galerkin method for solving the nonlinear Riesz space fractional Schrödinger equation and the strongly coupled nonlinear Riesz space fractional Schrödinger equations. These problems have been expressed as a system of low order differential/integral equations. Moreover, we prove, for both problems, $L^{2}$ stability and optimal order of convergence $O(h^{N+1})$, where $h$ is space step size and $N$ is polynomial degree. Finally, the performed numerical experiments confirm the optimal order of convergence.
Letter from Barbara Hepworth to Herbert Read, February 1, 1953
Creators: name: Hepworth, Barbara, 1903-1975
Publisher: name: University of Victoria Libraries
Year: 2022
Subjects: subject: Artists
valueUri: http://id.worldcat.org/fast/817559
subject: Artists--Correspondence
valueUri: http://id.worldcat.org/fast/817571
subject: Hepworth, Barbara, 1903-1975
valueUri: http://id.worldcat.org/fast/1898202
subject: Authors
valueUri: http://id.worldcat.org/fast/821688
subject: Poets, English
valueUri: http://id.worldcat.org/fast/1067870
subject: Women artists
valueUri: http://id.worldcat.org/fast/1177159
subject: Poets
valueUri: http://id.worldcat.org/fast/1067778
subject: Authors, English
valueUri: http://id.worldcat.org/fast/821945
subject: Art historians
valueUri: http://id.worldcat.org/fast/815554
subject: Art movements
valueUri: http://id.worldcat.org/fast/815613
subject: Authors, English--Correspondence
valueUri: http://id.worldcat.org/fast/821953
subject: Read, Herbert, 1893-1968
valueUri: http://id.worldcat.org/fast/1754386

description: Part of a collection of letters to Sir Herbert Read from Dame Barbara Hepworth (English artist and sculptor and, along with Read, a member of the modern art movement Unit One founded by Paul Nash), that span the time period of 1940 to 1965 and discuss their artistic and literary endeavors, philosophical and political views, and personal lives. Hepworth discusses art critics' effects on artists' earnings.
ВЛИЯНИЕ ПЕРСПЕКТИВНЫХ ВИДОВ И СОРТОВ БОБОВЫХ КУЛЬТУР НА БОТАНИЧЕСКИЙ СОСТАВ, ПРОДУКТИВНОСТЬ И ПИТАТЕЛЬНОСТЬ ОДНОЛЕТНИХ СМЕСЕЙ В УСЛОВИЯХ ЕВРОПЕЙСКОГО СЕВЕРА РОССИИ
Creators: name: Безгодова, Ирина
Publisher: name: figshare
Year: 2022
Subjects: Agronomy

description: Для производства кормов большой интерес представляют смешанные посевы однолетних кормовых культур, которые позволяют получать более сбалансированную в кормовом отношении продукцию. Цель исследований – изучить ботанический состав, продуктивность и питательную ценность смешанных посевов однолетних культур, сформированных на основе перспективных сортов зернобобовых культур в условиях Европейского Севера России. Метод исследований включал проведение полевого опыта в 2017–2020 гг. и производственной проверки с лучшими вариантами в 2021 году на опытном поле СЗНИИМЛПХ. Научная новизна в отличие от работ других ученых заключается в том, что впервые в условиях Европейского Севера России будут выявлены однолетние смеси, созданные на основе перспективных сортов зернобобовых культур. В результате проведенного опыта было выявлено, что в среднем за годы исследования бобово-злаковые смеси (вар. 1–10) обеспечили получение с 1 га за сезон 21,7–29,5 т зеленой массы, 4,34–5,78 т сухого вещества, 0,37–0,58 т сырого протеина. Лучшими оказались зерносмеси вика + овес + райграс однолетний (вар. 7), вика + горох + овес + райграс однолетний (вар. 8) и вика + бобы + овес + райграс однолетний (вар. 10). Они обеспечили повышение урожайности на 25,5–31,7%. Наибольшее содержание протеина 11,2, 11,6 и 11,6% в 1 кг сухого вещества в первом укосе было получено у смесей горох + вика + овес (вар. 4), вика + бобы + овес (вар. 5), вика + люпин + овес (вар. 6), включающих в свой состав вику яровую сорта «Ассорти». Достоверная прибавка к контролю при проведении производственной проверки получена у четырехкомпонентной смеси, сформировавшей два укоса за сезон. Урожайность надземной биомассы была получена на уровне 3,93 т/га сухого вещества, сбор сырого протеина – 0,54 т/га. Прибавка к контролю составила 0,74 т/га сухого вещества, или 23,2%. Содержание сырого протеина в первом укосе – 12,5%, во втором – 16,1%. Область применения – сельхозпредприятия Европейского Севера России.
Blazar Variability From Turbulence in Jets Launched by Magnetically Arrested Accretion Flows
Creators: name: Riordan, Michael O'
name: Pe'er, Asaf
name: McKinney, Jonathan C.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Blazars show variability on timescales ranging from minutes to years, the former being comparable to and in some cases even shorter than the light-crossing time of the central black hole. The observed gamma-ray lightcurves can be described by a power-law power density spectrum (PDS), with a similar index for both BL Lacs and flat-spectrum radio quasars. We show that this variability can be produced by turbulence in relativistic jets launched by magnetically arrested accretion flows (MADs). We perform radiative transport calculations on the turbulent, highly-magnetized jet launching region of a MAD with a rapidly rotating supermassive black hole. The resulting synchrotron and synchrotron self-Compton emission, originating from close to the black hole horizon, is highly variable. This variability is characterized by PDS which is remarkably similar to the observed power-law spectrum at frequencies less than a few per day. Furthermore, turbulence in the jet launching region naturally produces fluctuations in the plasma on scales much smaller than the horizon radius. We speculate that similar turbulent processes, operating in the jet at large radii (and therefore high bulk Lorentz factor), are responsible for blazar variability over many decades in frequency, including on minute timescales.
description: 8 pages, 5 figures, removed section from appendix, references added, accepted for publication in ApJ
title: Untersuchung der Nutzbarkeit von Graphreduktionstechniken auf Provenance Graphen im Bereich der IT-Sicherheit
Creators: name: Gesell, Jan Eske
Publisher: name: Hochschule Hannover
Year: 2023
Subjects: subject: 004 Informatik

description: Die Angriffserkennung ist ein wesentlicher Bestandteil, Cyberangriffe zu verhindern und abzumildern. Dazu werden Daten aus verschiedenen Quellen gesammelt und auf Einbruchsspuren durchsucht. Die heutzutage produzierten Datenmengen sind ein wesentliches Problem für die Angriffserkennung. Besonders bei komplexen Cyberangriffen, die über einen längeren Zeitraum stattfinden, wächst die zu durchsuchende Datenmenge stark an und erschwert das Finden und Kombinieren der einzelnen Angriffsschritte. Eine mögliche Lösung, um dem Problem entgegenzuwirken, ist die Reduktion der Datenmenge. Die Datenreduktion versucht, Daten herauszufiltern, die aus Sicht der Angriffserkennung irrelevant sind. Diese Ansätze werden unter dem Begriff Reduktionstechniken zusammengefasst. In dieser Arbeit werden Reduktionstechniken aus der Wissenschaft untersucht und auf Benchmark Datensätzen angewendet, um ihre Nutzbarkeit zu evaluieren. Dabei wird der Frage nachgegangen, ob die Reduktionstechniken in der Lage sind, irrelevante Daten ausfindig zu machen und zu reduzieren, ohne dass eine Beeinträchtigung der Angriffserkennung stattfindet. Die Evaluation der Angriffserkennung erfolgt durch ThreaTrace, welches eine Graph Neural Network basierte Methode ist. Die Evaluierung zeigt, dass mehrere Reduktionstechniken die Datenmenge wesentlich reduzieren können, ohne die Angriffserkennung zu beeinträchtigen. Bei drei Techniken führt der Einsatz zu keinen nennenswerten Veränderungen der Erkennungsraten. Dabei wurden Reduktionsraten von bis zu 30 % erreicht. Bei der Anwendung einer Reduktionstechnik stieg die Erkennungsleistung sogar um 8 %. Lediglich bei zwei Techniken führt der Einsatz zum drastischen Absinken der Erkennungsrate. Insgesamt zeigt die Arbeit, dass eine Datenreduktion angewandt werden kann, ohne die Angriffserkennung zu beeinträchtigen. In besonderen Fällen kann eine Datenreduktion, die Erkennungsleistung sogar verbessern. Allerdings ist der erfolgreiche Einsatz der Reduktionstechniken abhängig vom verwendeten Datensatz und der verwendeten Methode der Angriffserkennung.
Формирование однолетних бобово-злаковых смесей на основе перспективных сортов в условиях Европейского Севера России
Creators: name: Безгодова, Ирина
Publisher: name: figshare
Year: 2022
Subjects: Agronomy

description: В статье представлены результаты исследований за 2017‒2020 гг. по выращиванию однолетних культур на кормовые цели в смешанных посевах. Место проведения – опытное поле СЗНИИМЛПХ Вологодской области. Для проведения исследований были подобраны следующие перспективные сорта: горох Аксайский усатый-55, вика Ассорти, люпин Олигарх, бобы кормовые Красный богатырь. Также в смесях использовали овёс яровой сорта Яков и райграс однолетний сорт аРапид. В результате проведённого опыта было выявлено, что в среднем за годы исследования бобово-злаковые смеси обеспечили получение с 1 га за сезон следующих продуктивных показателей: 21,7– 29,5 т зелёной массы, 4,34‒5,78 т сухого вещества, 3,0‒3,9 тыс. кормовых единиц, 0,37‒0,58 т сырого протеина, 40,8‒52,8 ГДж обменной энергии. Наибольшее содержание протеина 11,2, 11,6 и 11,6% в 1 кг СВ в первом укосе было получено у смесей в вариантах: горох + вика + овёс (вар. 4), вика + бобы + овёс (вар. 5) и вика + люпин + овёс (вар. 6).
A new interacting two fluid model and its consequences
Creators: name: Sharov, German S.
name: Bhattacharya, Subhra
name: Pan, Supriya
name: Nunes, Rafael C.
name: Chakraborty, Subenoy
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the background of a homogeneous and isotropic spacetime with zero spatial curvature, we consider interacting scenarios between two barotropic fluids, one is the pressureless dark matter (DM) and the other one is dark energy (DE), in which the equation of state (EoS) in DE is either constant or time dependent. In particular, for constant EoS in DE, we show that the evolution equations for both fluids can be analytically solved. For all these scenarios, the model parameters have been constrained using the current astronomical observations from Type Ia Supernovae, Hubble parameter measurements, and baryon acoustic oscillations distance measurements. Our analysis shows that both for constant and variable EoS in DE, a very small but nonzero interaction in the dark sector is favored while the EoS in DE can predict a slight phantom nature, i.e. the EoS in DE can cross the phantom divide line `$-1$'. On the other hand, although the models with variable EoS describe the observations better, but the Akaike Information Criterion supports models with minimal number of parameters. However, it is found that all the models are very close to the $Λ$CDM cosmology.
description: 13 pages, 3 figures, 2 tables; Accepted for publication in MNRAS
Transport, Geometrical and Topological Properties of Stealthy Disordered Hyperuniform Two-Phase Systems
Creators: name: Zhang, G.
name: Stillinger, F. H.
name: Torquato, S.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Disordered hyperuniform many-particle systems have attracted considerable recent attention. One important class of such systems is the classical ground states of "stealthy potentials." The degree of order of such ground states depends on a tuning parameter. Previous studies have shown that these ground-state point configurations can be counterintuitively disordered, infinitely degenerate, and endowed with novel physical properties (e.g., negative thermal expansion behavior). In this paper, we focus on the disordered regime in which there is no long-range order, and control the degree of short-range order. We map these stealthy disordered hyperuniform point configurations to two-phase media by circumscribing each point with a possibly overlapping sphere of a common radius $a$: the "particle" and "void" phases are taken to be the space interior and exterior to the spheres, respectively. We study certain transport properties of these systems, including the effective diffusion coefficient of point particles diffusing in the void phase as well as static and time-dependent characteristics associated with diffusion-controlled reactions. Besides these effective transport properties, we also investigate several related structural properties, including pore-size functions, quantizer error, an order metric, and percolation threshold. We show that these transport, geometrical and topological properties of our two-phase media derived from decorated stealthy ground states are distinctly different from those of equilibrium hard-sphere systems and spatially uncorrelated overlapping spheres.
Edge-matching Problems with Rotations
Creators: name: Ebbesen, Martin
name: Fischer, Paul
name: Witt, Carsten
Publisher: name: arXiv
Year: 2017
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Edge-matching problems, also called edge matching puzzles, are abstractions of placement problems with neighborhood conditions. Pieces with colored edges have to be placed on a board such that adjacent edges have the same color. The problem has gained interest recently with the (now terminated) Eternity~II puzzle, and new complexity results. In this paper we consider a number of settings which differ in size of the puzzles and the manipulations allowed on the pieces. We investigate the effect of allowing rotations of the pieces on the complexity of the problem, an aspect that is only marginally treated so far. We show that some problems have polynomial time algorithms while others are NP-complete. Especially we show that allowing rotations in one-row puzzles makes the problem NP-hard. The proofs of the hardness result uses a large number of colors. This is essential because we also show that this problem (and another related one) is fixed-parameter tractable, where the relevant parameter is the number of colors.
Equivalences Between Network Codes With Link Errors and Index Codes With Side Information Errors
Creators: name: Kim, Jae-Won
name: No, Jong-Seon
Publisher: name: arXiv
Year: 2017
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper, new equivalence relationships between a network code with link errors (NCLE) and an index code with side information errors (ICSIE) are studied. First, for a given network coding instance, the equivalent index coding instance is derived, where an NCLE is converted to the corresponding ICSIE and vice versa. Next, for a given index coding instance, the equivalent network coding instance is also derived, where an ICSIE is converted to the corresponding NCLE and vice versa if a pair of encoding functions of an original link and the duplicated link are functionally related in the network code. Finally, several properties of an NCLE are derived from those of the equivalent ICSIE using the fact that the NCLE and the ICSIE are equivalent.
Home-Box based collaborative caching strategy: An asset for Content Delivery Networks
Creators: name: Bruneau-Queyreix, Joachim
name: Négru, Daniel
name: Batalla, Jordi Mongay
Publisher: name: arXiv
Year: 2017
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: -- Within the Future Internet, a new trend is foreseen with the creation of overlay networks composed of residential gateways (i.e. Home-Box), leveraging their storage and upload capacity in order to achieve scalable and cost-efficient content distribution. In this paper, we highlight an architecture of such a home-box overlay for Video On Demand (VOD) services, in cooperation with a network-aware request redirection and content caching strategy that optimize the resource usage at both network and client side to reduce the overall distribution cost. The proposed system is compared to existing solutions through comprehensive simulations. The results demonstrate the strong advantage of introducing such a network-aware and popularity-based caching strategy in terms of cost reduction for VOD services, especially for Content Delivery Networks.
Self-Metalation of Phthalocyanine Molecules with Silver Surface Atoms by Adsorption on Ag(110)
Creators: name: Smykalla, Lars
name: Shukrynau, Pavel
name: Zahn, Dietrich R. T.
name: Hietschold, Michael
Publisher: name: arXiv
Year: 2016
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report that metal-free phthalocyanine (H2Pc) molecules with a central cavity are able to incorporate Ag atoms from an Ag(110) surface thus creating silver-phthalocyanine (AgPc). The reaction was investigated by means of scanning tunneling microscopy (STM) under ultrahigh vacuum, and the metalation of \ce{H2Pc} at the interface was confirmed with X-ray photoelectron spectroscopy. Three different kinds of molecules were found on the surface that are assigned to H2Pc, the corresponding dehydrogenated molecules (Pc) and AgPc. The relative amounts of Pc and AgPc increase with increasing annealing temperature. We suggest that the reaction with Ag atoms from the steps of the surface occurs favorably only for already dehydrogenated molecules; thus, the metalation of H2Pc is likely limited by the heat-induced dehydrogenation. Density functional theory simulations of the reaction path are presented to corroborate this hypothesis.
description: 9 pages, 4 figures
Effect of Super Resolution on High Dimensional Features for Unsupervised Face Recognition in the Wild
Creators: name: ElSayed, Ahmed
name: Mahmood, Ausif
name: Sobh, Tarek
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Majority of the face recognition algorithms use query faces captured from uncontrolled, in the wild, environment. Often caused by the cameras limited capabilities, it is common for these captured facial images to be blurred or low resolution. Super resolution algorithms are therefore crucial in improving the resolution of such images especially when the image size is small requiring enlargement. This paper aims to demonstrate the effect of one of the state-of-the-art algorithms in the field of image super resolution. To demonstrate the functionality of the algorithm, various before and after 3D face alignment cases are provided using the images from the Labeled Faces in the Wild (lfw). Resulting images are subject to testing on a closed set face recognition protocol using unsupervised algorithms with high dimension extracted features. The inclusion of super resolution algorithm resulted in significant improved recognition rate over recently reported results obtained from unsupervised algorithms.
SEAwise Report on fisher behaviour submodels
Creators: name: Rindorf, Anna
name: Kraan, Marloes
name: Bitetto, Isabella
name: Bellanger, Manuel
name: Brown, Elliot John
name: Depestele, J. (Jochen)
name: Frangoudes, Katia
name: Hamon, Katell
name: Hegland, Troels
name: Lehuta, Sigrid
name: Letschert, Jonas
name: Liontakis, Angelos
name: Mendo, Tania
name: Muench, Angela
name: Northridge, Simon
name: Pecceu, Ellen
Publisher: name: Technical University of Denmark
Year: 2022
Subjects: Environmental management
Natural resource management

description: The SEAwise project works to deliver a fully operational tool that will allow fishers, managers, and policy makers to easily apply Ecosystem Based Fisheries Management (EBFM) in their own fisheries. One of the key uncertainties in fisheries science and management can be linked to (our understanding of) fishers behaviour. In this report we describe the project efforts to better understand fishers behaviour by assessing literature, interviews and data to advance towards a better representation of fisher behaviour in our modelling. A better understanding of fisher behaviour is especially needed in the context of change affecting Europe’s marine ecosystems. Change is both related to the natural part of the ecosystem (i.e. climate change) as to the social side of the ecosystem (i.e. building of windparks). To that aim we present nine different case studies in Europe as examples of how fisher behaviour has been studied and which factors are (or can be) relevant for a better understanding of fisher behaviour. Each case study ends with a table summarising the factors influencing behaviour, the categories within that factor and the (potential) application in modelling as well as the implications for management. The table below summarises the factors found / used in the case studies and the elements (social, cultural, ecological, economic and institutional) to which the relate. A variety of social factors were identified that are promising for use in modelling. A key conclusion is that social data are often context dependant and cannot be copy pasted from one situation to the other and in some case, additional data needs to be collected. The cases also demonstrate that mixed methods approaches and interdisciplinary approaches are key to get in-depth of understanding of fisher behaviour in fisheries science.
 Read more about the project at https://seawiseproject.org/
Tuning of Fermi Contour Anisotropy in GaAs (001) 2D Holes via Strain
Creators: name: Jo, Insun
name: Mueed, M. A.
name: Pfeiffer, L. N.
name: West, K. W.
name: Baldwin, K. W.
name: Winkler, R.
name: Padmanabhan, Medini
name: Shayegan, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We demonstrate tuning of the Fermi contour anisotropy of two-dimensional (2D) holes in a symmetric GaAs (001) quantum well via the application of in-plane strain. The ballistic transport of high-mobility hole carriers allows us to measure the Fermi wavevector of 2D holes via commensurability oscillations as a function of strain. Our results show that a small amount of in-plane strain, on the order of $10^{-4}$, can induce significant Fermi wavevector anisotropy as large as 3.3, equivalent to a mass anisotropy of 11 in a parabolic band. Our method to tune the anisotropy \textit{in situ} provides a platform to study the role of anisotropy on phenomena such as the fractional quantum Hall effect and composite fermions in interacting 2D systems.
description: Accepted to Applied Physics Letters
Falling Coupled Oscillators & Trigonometric Sums
Creators: name: Holcombe, S. R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: A method for evaluating finite trigonometric summations is applied to a system of N coupled oscillators under acceleration. Initial motion of the nth particle is shown to be of the order ${{T}^{2n+2}}$ for small time T and the end particle in the continuum limit is shown to initially remain stationary for the time it takes a wavefront to reach it. The average velocities of particles at the ends of the system are shown to take discrete values in a step-like manner.
Interpretation of the new $Ω_c^{0}$ states via their mass and width
Creators: name: Agaev, S. S.
name: Azizi, K.
name: Sundu, H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The mass and pole residue of the ground and first radially excited $ Ω_c^{0}$ states with spin-parities $J^{P}=1/2^{+},\,3/2^{+}$, as well as P-wave $Ω_c^{0}$ with $J^{P}=1/2^{-},\,3/2^{-}$ are calculated by means of the two-point QCD sum rules. The strong decays of $Ω_c^{0}$ baryons are also studied and width of these decay channels are computed. The relevant computations are performed in the context of the full QCD sum rules on the light-cone. Obtained results for the masses and widths are confronted with recent experimental data of LHCb Collaboration, which allow us to interpret $Ω_c(3000)^{0}$, $Ω_c(3050)^{0}$, and $ Ω_c(3119)^{0} $ as the excited $css$ baryons with the quantum numbers $ (1P,\,1/2^{-})$, $(1P,\,3/2^{-})$, and $(2S,\,3/2^{+})$, respectively. The $ (2S,\,1/2^{+})$ state can be assigned either to $Ω_c(3066)^{0}$ state or $Ω_c(3090)^{0}$ excited baryon.
description: 12 Pages, 4 Figures and 4 Tables
Atomic-scale imaging of few-layer black phosphorus and its reconstructed edge
Creators: name: Lee, Yangjin
name: Yoon, Jun-Yeong
name: Scullion, Declan
name: Jang, Jeongsu
name: Santos, Elton J G
name: Jeong, Hu Young
name: Kim, Kwanpyo
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Black phosphorus (BP) has recently emerged as an alternative 2D semiconductor owing to its fascinating electronic properties such as tunable bandgap and high charge carrier mobility. The structural investigation of few-layer BP, such as identification of layer thickness and atomic-scale edge structure, is of great importance to fully understand its electronic and optical properties. Here we report atomic-scale analysis of few-layered BP performed by aberration corrected transmission electron microscopy (TEM). We establish the layer-number-dependent atomic resolution imaging of few-layer BP via TEM imaging and image simulations. The structural modification induced by the electron beam leads to revelation of crystalline edge and formation of BP nanoribbons. Atomic resolution imaging of BP clearly shows the reconstructed zigzag (ZZ) edge structures, which is also corroborated by van der Waals first principles calculations on the edge stability. Our study on the precise identification of BP thickness and atomic-resolution imaging of edge structures will lay the groundwork for investigation of few-layer BP, especially BP in nanostructured forms.
description: 20 pages, 6 figures
Bose-Einstein correlations in perturbative QCD: $v_n$ dependence on multiplicity
Creators: name: Gotsman, E.
name: Levin, E.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we study the dependence of Bose-Einstein correlations on the multiplicity of an event. We found that events with large multiplicity, stem from the production of several parton showers, while the additional production of small multiplicity in the central rapidity region (central diffraction), gives a negligible contribution due to emission of soft gluons, that leads to the Sudakov suppression of the exclusive production of two gluon jets. Hence, the Bose-Einstein correlation is the main source of the azimuthal angle correlations which generates $v_n$ with odd and even $n$. We found, that without this suppression, the measurement of an event with given multipilicity, yields $v_{n,n} < 0$ for odd $n$. It appears that in hadron-nucleus and nucleus-nucleus collisions, the Bose-Einstein correlations do not depend on multiplicity, while for hadron-hadron scattering, such dependence can be considerable. We proposed a simple Kharzeev-Levin-Nardi (KLN) type model, to describe the dependence of azimuthal angle correlations on the centrality of the event, in ion-ion collisions.
description: 24 pages, 30 figures in eps files
Herstellung einer Bronzereplik der Statuette von Hamadab
Creators: name: Fitzenreiter, Martin
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2022

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 14 (2003): Der Antike Sudan
Methods, Analysis, and the Treatment of Systematic Errors for the Electron Electric Dipole Moment Search in Thorium Monoxide
Creators: name: ACME Collaboration
name: Baron, Jacob
name: Campbell, Wes C.
name: DeMille, David
name: Doyle, John M.
name: Gabrielse, Gerald
name: Gurevich, Yulia V.
name: Hess, Paul W.
name: Hutzler, Nicholas R.
name: Kirilov, Emil
name: Kozyryev, Ivan
name: O'Leary, Brendon R.
name: Panda, Cristian D.
name: Parsons, Maxwell F.
name: Spaun, Benjamin
name: Vutha, Amar C.
name: West, Adam D.
name: West, Elizabeth P.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We recently set a new limit on the electric dipole moment of the electron (eEDM) (J. Baron et al., ACME collaboration, Science 343 (2014), 269-272), which represented an order-of-magnitude improvement on the previous limit and placed more stringent constraints on many CP-violating extensions to the Standard Model. In this paper we discuss the measurement in detail. The experimental method and associated apparatus are described, together with the techniques used to isolate the eEDM signal. In particular, we detail the way experimental switches were used to suppress effects that can mimic the signal of interest. The methods used to search for systematic errors, and models explaining observed systematic errors, are also described. We briefly discuss possible improvements to the experiment.
description: 81 pages, 37 figures, submitted to NJP
Porträt
Creators: name: Lohwasser, Angelika
Publisher: name: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V.
Year: 2022

description: Der Antike Sudan. Mitteilungen der Sudanarchäologischen Gesellschaft zu Berlin e. V., Bd. 14 (2003): Der Antike Sudan
Lieb-Thirring inequality with semiclassical constant and gradient error term
Creators: name: Nam, Phan Thành
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In 1975, Lieb and Thirring derived a semiclassical lower bound on the kinetic energy for fermions, which agrees with the Thomas-Fermi approximation up to a constant factor. Whenever the optimal constant in their bound coincides with the semiclassical one is a long-standing open question. We prove an improved bound with the semiclassical constant and a gradient error term which is of lower order.
description: 6 pages, comments and references added