cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Invariant Differential Operators for Non-Compact Lie Algebras Parabolically Related to Conformal Lie Algebras
Creators: name: Dobrev, V. K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In the present paper we continue the project of systematic construction of invariant differential operators for non-compact semisimple Lie groups. Our starting points is the class of algebras, which we call 'conformal Lie algebras' (CLA), which have very similar properties to the conformal algebras of Minkowski space-time, though our aim is to go beyond this class in a natural way. For this we introduce the new notion of {\it parabolic relation} between two non-compact semisimple Lie algebras g and g' that have the same complexification and possess maximal parabolic subalgebras with the same complexification. Thus, we consider the exceptional algebra E_{7(7)} which is parabolically related to the CLA E_{7(-25)}, the parabolic subalgebras including E_{6(6)} and E_{6(-6)} . Other interesting examples are the orthogonal algebras so(p,q) all of which are parabolically related to the conformal algebra so(n,2) with p+q=n+2, the parabolic subalgebras including the Lorentz subalgebra so(n-1,1) and its analogs so(p-1,q-1). We consider also E_{6(6)} and E_{6(2)} which are parabolically related to the hermitian symmetric case E_{6(-14)}, the parabolic subalgebras including real forms of sl(6). We also give a formula for the number of representations in the main multiplets valid for CLAs and all algebras that are parabolically related to them. In all considered cases we give the main multiplets of indecomposable elementary representations including the necessary data for all relevant invariant differential operators. In the case of so(p,q) we give also the reduced multiplets. We should stress that the multiplets are given in the most economic way in pairs of {\it shadow fields}. Furthermore we should stress that the classification of all invariant differential operators includes as special cases all possible {\it conservation laws} and {\it conserved currents}, unitary or not.
description: LATEX, 42 pages, 10 figures, overlap in Preliminaries with arXiv:0812.2690, arXiv:1205.5521, arXiv:0812.2655, V3: text amended as accepted to JHEP, v4,v5: small additions
Wanderausstellungen
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 9 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Ausstellungskalender
Creators: name: Redaktion, Die
Publisher: name: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Year: 2019

description: Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege, Bd. 13 Nr. 9 (1960): Kunstchronik. Monatsschrift für Kunstwissenschaft, Museumswesen und Denkmalpflege
Direct constraints on charged excitations of dark matter
Creators: name: An, Haipeng
name: Pospelov, Maxim
name: Pradler, Josef
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: If the neutral component of weak-scale dark matter is accompanied by a charged excitation separated by a mass gap of less than ~20 MeV, WIMPs can form stable bound states with nuclei. We show that the recent progress in experiments searching for neutrinoless double-beta decay sets the first direct constraint on the exoergic reaction of WIMP-nucleus bound state formation. We calculate the rate for such process in representative models and show that the double-beta decay experiments provide unique sensitivity to a large fraction of parameter space of the WIMP doublet model, complementary to constraints imposed by cosmology and direct collider searches.
description: Final version. Published in PRL 109, 251302 (2012)
Spin transition in the fractional quantum Hall regime: Effect of extent of the wave function
Creators: name: Vanovsky, V. V.
name: Khrapai, V. S.
name: Shashkin, A. A.
name: Pellegrini, V.
name: Sorba, L.
name: Biasiol, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a magnetocapacitance technique, we determine the magnetic field of the spin transition, B*, at filling factor nu=2/3 in the 2D electron system in GaAs/AlGaAs heterojunctions. The field B* is found to decrease appreciably as the wave function extent controlled by back gate voltage is increased. Our calculations show that the contributions to the shift of B* from the change of the Coulomb energy and the g factor change due to nonparabolicity are approximately the same. The observed relative shift of B* is described with no fitting parameters.
description: as published
UTEP CS 4364/5364 Spring 2022 Syllabus
Creators: name: DeBlasio, Dan
Publisher: name: Zenodo
Year: 2022

description: This is the syllabus used for the UTEP CS 4364/5364 Course titled "Special Topics in Data Science:Algorithms for Computational Biology"
 All course documents can be found at https://github.com/deblasiolab/CS4364-Documents.
Measurement of the damping of nuclear shell effect in the doubly magic $^{208}$Pb region
Creators: name: Rout, P. C.
name: Chakrabarty, D. R.
name: Datar, V. M.
name: Kumar, Suresh
name: Mirgule, E. T
name: Mitra, A.
name: Nanal, V.
name: Behera, S. P.
name: Singh, V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: The damping of the nuclear shell effect with excitation energy has been measured through an analysis of the neutron spectra following the triton transfer in the $^7$Li induced reaction on $^{205}$Tl. The measured neutron spectra demonstrate the expected large shell correction energy for the nuclei in the vicinity of doubly magic $^{208}$Pb and a small value for $^{184}$W. A quantitative extraction of the allowed values of the damping parameter $γ$, along with those for the asymptotic nuclear level density parameter $\tilde{a}$, has been made for the first time.
description: 5 pages, 5 figures
Welche Folgen ergäben sich aus einer Öffnung der KG für Freiberufler?
Creators: name: Wind, Dario
Publisher: name: Studentische Zeitschrift für Rechtswissenschaft Heidelberg – Wissenschaft Online
Year: 2019

description: Im Jahr 2007 wurde das österreichische HGB einer Reform unterzogen, welche zu einer weiten Öffnung der KG führte. Nunmehr steht es auch Freiberuflern offen, sich dieser Rechtsform zu bedienen. In Deutschland blieb es mit der Partnerschaftsgesellschaft hingegen bei einer eigenen Rechtsform für Freiberufler. Ausgehend davon stellt sich die Frage, ob auch die deutsche KG für Freiberufler geöffnet werden sollte. Auf dem 71. Deutschen Juristentag wurde sich dafür in Beschluss Nr. 30 positiv ausgesprochen. Dieser Beitrag untersucht die Folgen, welche hieraus entstehen würden. Vorangestellt wird ein Rechtsformenvergleich zwischen der KG und den bisher für Freiberufler zugängigen Rechtsformen. Im  Anschluss wird untersucht, wie die Öffnung der KG gesetzestechnisch zu vollziehen ist und welche rechtssystematischen Probleme sich daraus ergeben.
description: Studentische Zeitschrift für Rechtswissenschaft Heidelberg – Wissenschaft Online, Nr. 2 (2018): StudZR-WissOn
The Peculiar Balmer Decrement of SN 2009ip: Constraints on Circumstellar Geometry
Creators: name: Levesque, Emily M.
name: Stringfellow, Guy S.
name: Ginsburg, Adam G.
name: Bally, John
name: Keeney, Brian A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present optical and near-IR spectroscopic observations of the luminous blue variable SN 2009ip during its remarkable photometric evolution of 2012. The spectra sample three key points in the SN 2009ip lightcurve, corresponding to its initial brightening in August (2012-A) and its dramatic rebrightening in early October (2012-B). Based on line fluxes and velocities measured in our spectra, we find a surprisingly low I(H-alpha)/I(H-beta) ~ 1.3-1.4 in the 2012-B spectra. Such a ratio implies either a rare Case B recombination scenario where H-alpha, but not H-beta, is optically thick, or an extremely high density for the circumstellar material of n_e > 10^13 cm^(-3) The H-alpha line intensity yields a minimum radiating surface area of >~20,000 AU^2 in H-alpha at the peak of SN 2009ip's photometric evolution. Combined with the nature of this object's spectral evolution in 2012, a high circumstellar density and large radiating surface area imply the presence of a thin disk geometry around the central star (and, consequently, a possible binary companion), suggesting that the observed 2012-B rebrightening of SN 2009ip can be attributed to the illumination of the disk's inner rim by fast-moving ejecta produced by the underlying events of 2012-A.
description: 22 pages, 5 figures; accepted for publication in AJ
Die Wahlfeststellung – Kritische Betrachtung des Beschlusses des Großen Senats für Strafsachen, BGHSt 62, 164 ff.
Creators: name: Klotzsch, Carsten
Publisher: name: Studentische Zeitschrift für Rechtswissenschaft Heidelberg – Wissenschaft Online
Year: 2019

description: Mit Beschluss vom 8.5.2017 bestätigte der Große Strafsenat des BGH die Verfassungsmäßigkeit der „echten“ Wahlfeststellung, also einer auf zwei alternative Tatbestandsverwirklichungen gestützten Verurteilung, wobei sich die Verwirklichung keines Tatbestands mit Sicherheit nachweisen lässt. Vorausgegangen war eine – vom Vorlagebeschluss des von der Verfassungswidrigkeit überzeugten 2. Strafsenats nochmals angestoßene – mehrjährige kontroverse Debatte, in der sich viele Stimmen für die Abschaffung dieser Rechtsfigur stark gemacht hatten. Dieser Beitrag beleuchtet die Hintergründe der Wahlfeststellung und würdigt den Beschluss des Großen Senats für Strafsachen, welcher jüngst durch das BVerfG bestätigt wurde, kritisch. Insbesondere wird das Spannungsfeld zwischen dem Streben nach „Einzelfallgerechtigkeit“ und den im Grundgesetz und in der EMRK verankerten Grundsätzen „in dubio pro reo“ sowie „nulla poena sine lege“ beleuchtet.
description: Studentische Zeitschrift für Rechtswissenschaft Heidelberg – Wissenschaft Online, Nr. 1 (2019): StudZR-WissOn
Absurdität und Revolte. Albert Camus und das „absolut Relative“
Creators: name: Jessen, Herle-Christin
Publisher: name: Ruperto Carola
Year: 2019

description: Die Spannung zwischen Absolutem und Relativem bildet eine zentrale Säule im literarischen und philosophischen Werk des Nobel­preisträgers Albert Camus. Dabei erblickt Camus die ambiva- lente Figur eines „absolut Relativen“ in der Wechselwirkung von Absurdität und Revolte. Zeitlebens versucht der französische Autor, eine ästhetische Konfiguration zu finden, in der er der Grundspannung eines „relatif absolu“ angemessen Ausdruck ver- leihen kann, ohne den Dogmen absoluter Dichtung oder den Grundsätzen einer unmittelbar soziopolitisch gebundenen und inso- fern relativen Literatur zu verfallen.
description: Ruperto Carola, Nr. 14 (2019): Absolut & Relativ
Temperaturen im Keller. Das kälteste Gas des Universums
Creators: name: Weidemüller, Matthias
Publisher: name: Ruperto Carola
Year: 2019

description: Wie nahe kann man dem absoluten Nullpunkt der Temperatur kommen? Der Wettlauf um das Erreichen der niedrigstmöglichen Temperatur begann Mitte des 19. Jahrhunderts und hält bis heute an – mit spektakulären Quanteneffekten.
description: Ruperto Carola, Nr. 14 (2019): Absolut & Relativ
Gluon- and Quark-Jet Multiplicities with NNNLO and NNLL Accuracy
Creators: name: Bolzoni, P.
name: Kniehl, B. A.
name: Kotikov, A. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present a new approach to consider and include both the perturbative and the non-perturbative contributions to the multiplicities of gluon and quark jets. Thanks to this new method, we have included for the first time new contributions to these quantities obtaining next-to-next-to-leading-logarithmic resummed formulas. Our analytic expressions depend on two non-perturbative parameters with a clear and simple physical interpretation. A global fit of these two quantities shows how our results solve a longstanding discrepancy in the theoretical description of the data.
description: 4pages, 2 figures; final published version
Cancer Therapy with Heavy Particles
Creators: name: Rosalbino, Francesco
Publisher: name: Zenodo
Year: 2023

description: Conventional radiotherapy techniques for the treatment of malignant tumours are known to carry some risk as a method of combatting cancerous cells. The damage caused to healthy tissue as a part of these treatments poses a significant obstacle to overcome in the fields of radiobiology and oncology. The use of linear particle accelerators and cyclotrons to generate beams of charged radioactive particles for use in cancer therapy has been developed over recent years, and new and more effective cancer treatments such as hadron therapy have been made possible because of experimental particle physics and hold the promise of greater survival rates for patients. The effectivity of such particle physics based treatments is discussed here, and potential new treatments explored.
Wettstreit ohne Sieger. Juckreiz und Schmerz
Creators: name: Schmelz, Martin
Publisher: name: Ruperto Carola
Year: 2019

description: Die zellulären und molekularen Verarbeitungswege für das Empfinden von Juckreiz sind komplex. Jüngste Ergebnisse der Grundlagenforscher bieten zahlreiche neue Angriffspunkte für bessere Therapien gegen quälenden Juckreiz – und womöglich auch gegen Schmerz.
description: Ruperto Carola, Nr. 14 (2019): Absolut & Relativ
Nullsummenspiel? Donald Trump und die Kostenvorteile
Creators: name: Werner, Welf
Publisher: name: Ruperto Carola
Year: 2019

description: US-Präsident Donald Trump hat wie auf vielen anderen Politikfeldern auch in der Handelspolitik mit lang etablierten Vorstellungen gebrochen: Anstelle von Freihandel will er den defizitären Außenhandel der USA mit der Verhängung emp- findlicher Strafzölle ins Positive drehen. Gegen die Vorstellung, dass nur überschüssiger Handel guter Handel sei, wenden sich allerdings bereits seit 200 Jahren die Theorien der absoluten und der komparativen – also relativen – Kostenvorteile. Bezweifelt Neo-Merkantilist Donald Trump die positiven Wohlfahrtseffekte, die Ökonomen dem freien internationalen Handel zuschreiben? Oder gibt es (auch) andere Gründe für sein Handeln?
description: Ruperto Carola, Nr. 14 (2019): Absolut & Relativ
Exploring the immunological impact of HIV-1 on pregnancy
Creators: name: Cocker, Alexander
Publisher: name: Imperial College London
Year: 2019

description: The immune system alters during pregnancy to support a semi-allogeneic fetus until term labour. Disruption in the timing of pregnancy is associated with excessive immune activation, loss of leukocyte populations and alterations in cell subset ratios in peripheral blood, but with unreliable prediction of preterm labour, longitudinal observation has not been possible. HIV-1 positive women have a higher incidence of pregnancy complications indicating disruption to their immune system affects key populations involved in the maintenance of pregnancy. This project determined the cross-sectional and longitudinal phenotypic and functional pathways that differ in the peripheral immune systems of HIV-1 negative and positive pregnancies through comparison with HIV-1 negative and positive non-pregnant women. Pregnant women were recruited at Chelsea and Westminster Hospital, blood drawn in each trimester and at delivery, and peripheral blood mononuclear cells extracted for flow cytometric phenotypic analysis and functional assays including anti-viral memory response, NK activation and intracellular cytokine staining. Cross-sectional comparison of groups demonstrated that both innate and adaptive cell branches were disrupted in the HIV-1 positive women; dendritic cell populations were skewed, natural killer cell maturation was driven towards anergy, lower CD4 T-cell frequency and effector T-cell populations dominated in the HIV-1 positive participants. Longitudinal comparison highlighted gestation specific alterations in regulatory T cells associated with increased suppressive capacity were lost in the HIV-1 positive group, and a continuous inflation of highly differentiated T-cell memory subsets was found. Decreased IL-10 response to Nef and transiently increased response to Gag peptides were found, and NK and T-cell markers of activation increased with gestation. However, longitudinal reconstitution was also observed in monocyte, DC, NK and T-cell populations, implying pregnancy may partly counter HIV-1-mediated chronic activation. Furthermore, comparison of HIV-1 negative and positive pregnant immune phenotypes highlighted differentiation pathways potentially key to pregnancy regulation of the immune system.
Fast Distributed PageRank Computation
Creators: name: Sarma, Atish Das
name: Molla, Anisur Rahaman
name: Pandurangan, Gopal
name: Upfal, Eli
Publisher: name: arXiv
Year: 2012
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Over the last decade, PageRank has gained importance in a wide range of applications and domains, ever since it first proved to be effective in determining node importance in large graphs (and was a pioneering idea behind Google's search engine). In distributed computing alone, PageRank vector, or more generally random walk based quantities have been used for several different applications ranging from determining important nodes, load balancing, search, and identifying connectivity structures. Surprisingly, however, there has been little work towards designing provably efficient fully-distributed algorithms for computing PageRank. The difficulty is that traditional matrix-vector multiplication style iterative methods may not always adapt well to the distributed setting owing to communication bandwidth restrictions and convergence rates. In this paper, we present fast random walk-based distributed algorithms for computing PageRanks in general graphs and prove strong bounds on the round complexity. We first present a distributed algorithm that takes $O\big(\log n/\eps \big)$ rounds with high probability on any graph (directed or undirected), where $n$ is the network size and $\eps$ is the reset probability used in the PageRank computation (typically $\eps$ is a fixed constant). We then present a faster algorithm that takes $O\big(\sqrt{\log n}/\eps \big)$ rounds in undirected graphs. Both of the above algorithms are scalable, as each node sends only small ($\polylog n$) number of bits over each edge per round. To the best of our knowledge, these are the first fully distributed algorithms for computing PageRank vector with provably efficient running time.
description: 14 pages
Data and R code for "Verbs of horizontal and vertical motion: a corpus study in Estonian"
Creators: name: Taremaa, Piia
Publisher: name: University of Tartu
Year: 2021
Subjects: corpus data, R code, language, motion

description: Data and statistical code used in the paper "Verbs of horizontal and vertical motion: a corpus study in Estonian" (accepted by the Finnish Journal of Linguistics 2021)
Potential and acoustic diffraction problems for arbitrarily shaped rotationally symmetric doubly-connected screens
Creators: name: Sagradian, Martin
Publisher: name: Macquarie University
Year: 2022
Subjects: Other education not elsewhere classified

description: This thesis develops a rigorous mathematical approach to the analysis of acoustic wave scattering and electrostatic problems for three-dimensional structures of revolution. An object can be formed by rotation of an arbitrarily shaped generating curve and has coaxial apertures on both ends which topologically corresponds to a doubly-connected surface. Such flexibility allows to consider various conductors and scatterers that are widely used in practice. Additionally, objects complementary to doubly-connected structures (an example of which would be a parallel disc capacitor) are analysed. Analysis of open structures by purely numerical techniques results in Fredholm integral equation of the first kind which is ill-posed in its numerical implementation and may result in a solution that does not correspond to a physical situation. Due to the presence of the edges, the accuracy of such a solution can be difficult to improve. The Method of Analytical Regularisation (MAR), a semi-analytical semi-numerical technique, is used in this thesis to transform the initial problem to an infinite system of linear algebraic equations of the second kind. It has been previously used to solve electrostatic and wave scattering problems for canonical structures and cavities with one aperture. The method is based on the theory of triple series equations with the Jacobi polynomials and the Abel integral transform. Such a system can be solved with a predefined accuracy via a truncation technique. For the numerical investigation, object-oriented software that supports a wide range of structures and different problem parameters has been built. The shape variability of the developed approach stimulated a study of various practical problems. Calculated capacitance and potential distribution for widely used conductors such as spheroidal barrels, finite open cylinders, truncated cones and parallel disk capacitors demonstrate excellent agreement with the known results from the literature. The research is also conducted on modifications of these structures that shows how electrostatics characteristics change with the shape modification. Finally, acoustic wave scattering from soft objects is investigated. The MAR approach allows to obtain the full spectral portrait of the scatterer, that is, to calculate the complex eigenvalues of the cavity. Scattering characteristics, such as sonar and bistatic cross sections, and field distributions are calculated and analysed for a wide range of objects.
A Review of Magnetic Phenomena in Probe-Brane Holographic Matter
Creators: name: Bergman, Oren
name: Erdmenger, Johanna
name: Lifschytz, Gilad
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Gauge/gravity duality is a useful and efficient tool for addressing and studying questions related to strongly interacting systems described by a gauge theory. In this manuscript we will review a number of interesting phenomena that occur in such systems when a background magnetic field is turned on. Specifically, we will discuss holographic models for systems that include matter fields in the fundamental representation of the gauge group, which are incorporated by adding probe branes into the gravitational background dual to the gauge theory. We include three models in this review: the D3-D7 and D4-D8 models, that describe four-dimensional systems, and the D3-D7' model, that describes three-dimensional fermions interacting with a four-dimensional gauge field.
description: 35 pages, 27 figures, to appear in Lect. Notes Phys. "Strongly interacting matter in magnetic fields" (Springer), edited by D. Kharzeev, K. Landsteiner, A. Schmitt, H.-U. Yee; references added
Resilience Engineering Association: A collection of Newsletters
Creators: name: David, Lida Zoi
name: Herrera, Ivonne
name: Lay, Elizabeth
Publisher: name: Zenodo
Year: 2023
Subjects: resilience engineering, safety II, complexity, safety differently, crisis management, graceful extensibility, surprise

description: The Resilience Engineering Association connects thousands of thought leaders, practitioners, and academics working with complexity, uncertainty, and change; bringing perspectives including and not limited to Resilience, Safety-I and II, Safety Differently, and Crisis Management worldwide. Through our newsletter, our community is informed on state-of-the-art research, practices, challenges, and potential solutions for safe, secure and resilient operations, proactive processes and practices to increase adaptation, readiness to respond to surprises and learning from what goes well, that span far beyond the individual and delve into team, system, organizational, governmental, and societal issues. This work is a collection of newsletters and includes contributions from over 25 countries in Europe, North and South America, Asia, Australia, and Africa.
Milan Zápotocký, Streitäxte des mitteleuropäischen Äneolithikums
Creators: name: Fischer, Ulrich
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Milan Zápotocký, Streitäxte des mitteleuropäischen Äneolithikums. Quellen und Forschungen zur prähistorischen und provinzialrömischen Archäologie, Band 6. Acta Humaniora. VCH-Ver- lagsgesellschaft, Weinheim 1992. XII, 398 Seiten, 56 Abbildungen, 49 Tabellen, 157 Tafeln und 5 Karten.
description: Bonner Jahrbücher, Bd. 193.1993(1994): Bonner Jahrbücher
Johannes Eingartner, Isis und ihre Dienerinnen in der Kunst der römischen Kaiserzeit
Creators: name: Tinh, Tran Tam
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Johannes Eingartner, Isis und ihre Dienerinnen in der Kunst der römischen Kaiserzeit. Mnemosyne. Bibliotheca Classica Batava, Supplementum 115. Verlag E.J. Brill, Leiden 1991. 197 Seiten, 98 Abbildungen.
description: Bonner Jahrbücher, Bd. 193.1993(1994): Bonner Jahrbücher
Ariane Bourgeois und Françoise Mayet, Belo VI. Les Sigillées
Creators: name: Hoffmann, Bettina
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: Ariane Bourgeois und Françoise Mayet, Belo VI. Les Sigillées. Collection de la Casa de Velàzquez, Band 34. Casa de Veläzquez, Madrid 1991. 403 Seiten, 120 Tafeln, 26 Abbildungen
description: Bonner Jahrbücher, Bd. 194.1994 (1995): Bonner Jahrbücher
José María Blázquez, Arte y Religión en el Mediterráneo Antiguo. Ediciones Cátedra
Creators: name: D’Encarnação, José
Publisher: name: Bonner Jahrbücher
Year: 2019

description: Rezension zu: José María Blázquez, Arte y Religión en el Mediterráneo Antiguo. Ediciones Cátedra, Madrid 2008. 512 pages, avec quelques illustrations en noir et blanc
description: Bonner Jahrbücher, Bd. 207.2007(2009): Bonner Jahrbücher
Radial Domany-Kinzel Models with Mutation and Selection
Creators: name: Lavrentovich, Maxim O.
name: Korolev, Kirill S.
name: Nelson, David R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: We study the effect of spatial structure, genetic drift, mutation, and selective pressure on the evolutionary dynamics in a simplified model of asexual organisms colonizing a new territory. Under an appropriate coarse-graining, the evolutionary dynamics is related to the directed percolation processes that arise in voter models, the Domany-Kinzel (DK) model, contact process, etc. We explore the differences between linear (flat front) expansions and the much less familiar radial (curved front) range expansions. For the radial expansion, we develop a generalized, off-lattice DK model that minimizes otherwise persistent lattice artifacts. With both simulations and analytical techniques, we study the survival probability of advantageous mutants, the spatial correlations between domains of neutral strains, and the dynamics of populations with deleterious mutations. "Inflation" at the frontier leads to striking differences between radial and linear expansions. For a colony with initial radius $R_0$ expanding at velocity $v$, significant genetic demixing, caused by local genetic drift, only occurs up to a finite time $t^* = R_0/v$, after which portions of the colony become causally disconnected due to the inflating perimeter of the expanding front. As a result, the effect of a selective advantage is amplified relative to genetic drift, increasing the survival probability of advantageous mutants. Inflation also modifies the underlying directed percolation transition, introducing novel scaling functions and modifications similar to a finite size effect. Finally, we consider radial range expansions with deflating perimeters, as might arise from colonization initiated along the shores of an island.
description: 24 pages, 21 figures
Self-bound quark matter in the NJL model revisited: from schematic droplets to domain-wall solitons
Creators: name: Buballa, Michael
name: Carignano, Stefano
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The existence and the properties of self-bound quark matter in the NJL model at zero temperature are investigated in mean-field approximation, focusing on inhomogeneous structures with one-dimensional spatial modulations. It is found that the most stable homogeneous solutions which have previously been interpreted as schematic quark droplets are unstable against formation of a one-dimensional soliton-antisoliton lattice. The solitons repel each other, so that the minimal energy per quark is realized in the single-soliton limit. The properties of the solitons and their interactions are discussed in detail, and the effect of vector interactions is estimated. The results may be relevant for the dynamics of expanding quark matter.
description: 21 pages, 6 figures; v2: modified title, discussion of soliton-soliton interactions corrected; version accepted for publication
Dark Bell states in tunnel-coupled spin qubits
Creators: name: Sánchez, Rafael
name: Platero, Gloria
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the dynamical purification of maximally entangled electron states by transport through coupled quantum dots. Under resonant ac driving and coherent tunneling, even-parity Bell states perform Rabi oscillations that decouple from the environment, leading to a dark state. The two electrons remain spatially separated, one in each quantum dot. We propose configurations where this effect will prove as antiresonances in transport spectroscopy experiments.
description: 5 pages, 4 figures + supplementary information. Published version
Twist analysis of the nucleon spin in QCD
Creators: name: Hatta, Yoshitaka
name: Yoshida, Shinsuke
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The decomposition of the nucleon spin into that of quarks and gluons is related to twist-two GPDs according to Ji sum rule. Further decomposition into the helicity and the orbital angular momentum inevitably requires twist-three GPDs. In this paper we derive exact relations between twist-three GPDs and the canonical orbital angular momentum density of quarks and gluons, and check their consistency with the spin sum rule. Our work demonstrates that the complete decomposition of the nucleon spin fits well with the framework of perturbative QCD.
description: 16 pages. v2: corrected numerical factors in eq.(3.7) and its ramifications, appendix removed. v3: improved presentation and discussion, version accepted for publication in JHEP
Electron and ion thermal forces in complex (dusty) plasmas
Creators: name: Khrapak, Sergey A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Expressions for the ion and electron thermal forces acting on a charged grain, suspended in a weakly ionized plasma subject to temperature gradients, are derived. The main emphasize is on the conditions pertinent to the investigations of complex (dusty) plasmas in gas discharges. Estimates show that for the electron temperature gradients $\sim {\mathcal O}$(eV/cm) typically encountered in laboratory gas discharges, the electron thermal force can become an important player among other forces acting on micron-size grains.
description: 6 pages, 1 figure
Temperedness of reductive homogeneous spaces
Creators: name: Benoist, Yves
name: Kobayashi, Toshiyuki
Publisher: name: arXiv
Year: 2012
Subjects: subject: Representation Theory (math.RT)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 22E46, Secondary 43A85, 22F30

description: Let G be a semisimple algebraic Lie group and H a reductive subgroup. We find geometrically the best even integer p for which the representation of G in L^2(G/H) is almost L^{p}. As an application, we give a criterion which detects whether this representation is tempered.
description: to appear in Journal of European Mathematical Society
Two possible circumbinary planets in the eclipsing post-common envelope system NSVS 14256825
Creators: name: Almeida, L. A.
name: Jablonski, F.
name: Rodrigues, C. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present an analysis of eclipse timings of the post-common envelope binary NSVS 14256825, which is composed of an sdOB star and a dM star in a close orbit (P_{orb} = 0.110374 days). High-speed photometry of this system was performed between July, 2010 and August, 2012. Ten new mid-eclipse times were analyzed together with all available eclipse times in the literature. We revisited the (O-C) diagram using a linear ephemeris and verified a clear orbital period variation. On the assumption that these orbital period variations are caused by light travel time effects, the (O-C) diagram can be explained by the presence of two circumbinary bodies, even though this explanation requires a longer baseline of observations to be fully tested. The orbital periods of the best solution would be P_c ~ 3.5 years and P_d ~ 6.9 years. The corresponding projected semi-major axes would be a_c i_c ~ 1.9 AU and a_d i_d ~ 2.9 AU. The masses of the external bodies would be M_c ~ 2.9 M_{Jupiter} and M_d ~ 8.1 M_{Jupiter}, if we assume their orbits are coplanar with the close binary. Therefore NSVS 14256825 might be composed of a close binary with two circumbinary planets, though the orbital period variations is still open to other interpretations.
description: 16 pages, 3 figures, 4 tables. Accepted for publication in ApJ
A British population in-person replication of Piech et al. 2010: All I Saw Was the Cake: Hunger Effects on Attentional Capture by Visual Food Cues
Creators: name: Neal, Courtney
name: Nettle, Daniel
name: Allen, Caroline
name: Pepper, Gillian
Publisher: name: Open Science Framework
Year: 2021
Subjects: subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Other Social and Behavioral Sciences

description: See attached PDF file titled "PDF In-person All I Saw Was Cake Pre-reg 2021".
A British population online replication of Piech et al. 2010: All I Saw Was the Cake: Hunger Effects on Attentional Capture by Visual Food Cues
Creators: name: Neal, Courtney
name: Allen, Caroline
name: Nettle, Daniel
name: Pepper, Gillian
Publisher: name: Open Science Framework
Year: 2021
Subjects: subject: Psychology
subject: FOS: Psychology
subject: Other Social and Behavioral Sciences
subject: Social and Behavioral Sciences
subject: Hunger
subject: Attention
subject: Replication
subject: Cognition

description: See PDF document titled "PDF FINAL All I Saw Was Cake Pre-reg 2021".
Comment on "Towards a large deviation theory for strongly correlated systems"
Creators: name: Touchette, Hugo
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: I comment on a recent paper by Ruiz and Tsallis [Phys. Lett. A 376, 2451 (2012)] claiming to have found a '$q$-exponential' generalization of the large deviation principle for strongly correlated random variables. I show that the basic scaling results that they find numerically can be reproduced with a simple example involving independent random variables, and are not specifically related to the $q$-exponential function. In fact, identical scaling results can be obtained with any other power-law deformations of the exponential. Thus their results do not conclusively support their claim of a $q$-exponential generalization of the large deviation principle.
description: Comment, 3 pages, 2 figures
A pilot and feasibility study for ecological momentary assessment of self-reported hunger and stress in British food secure and food insecure populations
Creators: name: Neal, Courtney
name: Nettle, Daniel
name: Allen, Caroline
name: Pepper, Gillian
name: Shannon, Oliver
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Social and Behavioral Sciences
subject: Other Social and Behavioral Sciences
subject: Medicine and Health Sciences
subject: Public Health
subject: Psychology
subject: FOS: Psychology

description: This protocol is for a pilot study for an ecological momentary assessment (EMA) study of self- reported hunger in two UK groups – a group that is experiencing food insecurity (FI), and a group that is not (FS; food secure). The full study will seek to identify similarities and differences in how individuals experiencing FI and FS experience hunger and stress during their everyday lives, and whether hunger and stress are predictive of one another. The purpose of this pilot is to (i) test our procedure, (ii) inform our predictions for the full study, (iii) establish which variables to derive from the data, (iv) establish the most suitable analyses, and (v) assess the acceptability and feasibility of our protocol.
Firewall or smooth horizon?
Creators: name: Ori, Amos
Publisher: name: arXiv
Year: 2012
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently, Almheiri, Marolf, Polchinski, and Sully found that for a sufficiently old black hole (BH), the set of assumptions known as the \emph{complementarity postulates} appears to be inconsistent with the assumption of local regularity at the horizon. They concluded that the horizon of an old BH is likely to be the locus of local irregularity, a "firewall". Here I point out that if one adopts a different assumption, namely that semiclassical physics holds throughout its anticipated domain of validity, then no inconsistency seems to arise, and the horizon retains its regularity. In this alternative view-point, the vast portion of the original BH information remains trapped inside the BH throughout the semiclassical domain of evaporation, and possibly leaks out later on. This appears to be an inevitable outcome of semiclassical gravity.
description: A slightly different version (with small modifications, mostly semantic, and some updated references) was published in Gen. Relativ. Gravit
Migrant Inclusion in Decision Making and The Role of Local Governments
Creators: name: Kandylis, George
name: Polyzou, Iris
name: Vezyrgianni, Katerina
name: Spyrellis, Stavros
name: Baltos, Pavlos
name: Kašperová, Eva
Publisher: name: Zenodo
Year: 2023
Subjects: Migrants, Inclusion, Policy Brief, Policy Making, Inclusive Policy Making, Decision Making

description: The paper explores the topic of migrant inclusion in decision-making processes, with a focus on the role of local governments. It examines the significance of including migrants in the decision-making sphere and highlights the benefits of their active participation. The paper likely discusses strategies, policies, and initiatives that local governments can adopt to promote migrant inclusion and enhance their involvement in shaping policies that affect their lives. Eu Project: Migrant Integration Through Locally Designed Experiences. The MILE project is supported by the EU’s AMIF Action Grant
 (AMIF-2020-AG-CALL-03)
description: Co-funded under the European Union's Asylum, Migration and Integration Fund (AMIF-2020-AG-CALL-03)
LUTS-1: Non defatted lobster hepatopancreas reference material for trace metals: certificate of analysis
Creators: name: Berman, Shier S.
name: Boyko, Victor
name: Clancy, Vincent
name: Lam, Joseph
name: Maxwell, Paulette
name: McLaren, James W.
name: Miedema, M
name: Siu, Kam Wing Michael
name: Sturgeon, Ralph
name: Willie, Scott
Publisher: name: National Research Council Canada
Year: 2013
Subjects: subject: Canadian reference material
subject: LUTS-1
subject: trace metals
subject: lobster hepatopancreas

description: Certified values for the mass fraction of trace metals have been established for this non-defatted lobster hepatopancreas certified reference material (LUTS-1).
LUTS-1: Matériau de référence d’hépatopancréas de homard non dégraissé pour les métaux à l’état de traces : certificat d'analyse
Creators: name: Berman, Shier S.
name: Boyko, Victor
name: Clancy, Vincent
name: Lam, Joseph
name: Maxwell, Paulette
name: McLaren, James W.
name: Miedema, M
name: Siu, Kam Wing Michael
name: Sturgeon, Ralph
name: Willie, Scott
Publisher: name: National Research Council Canada
Year: 2013
Subjects: subject: matériau de référence canadien
subject: LUTS-1
subject: métaux traces
subject: hépatopancréas de homard

description: Les valeurs certifiées suivante ont été établies pour le matériel de référence hépatopancréas de homard non dégraissé: fraction massique des métaux traces (LUTS-1).
EsKiMo II – die Ernährungsstudie als Modul in KiGGS Welle 2
Creators: name: Mensink, Gert
name: Haftenberger, Marjolein
name: Brettschneider, Anna-Kristin
name: Barbosa, Clarissa Lage
name: Perlitz, Hanna
name: Patelakis, Eleni
name: Heide, Karoline
name: Frank, Melanie
name: Lehmann, Franziska
name: Kraus, Laura
name: Houben, Robin
name: Butschalowsky, Hans
name: Richter, Almut
name: Kamtsiuris, Panagiotis
Publisher: name: Robert Koch-Institut, Epidemiologie und Gesundheitsberichterstattung
Year: 2017
Subjects: subject: ERNÄHRUNG
subject: GESUNDHEITSMONITORING
subject: KIGGS
subject: LEBENSMITTELKONSUM
subject: NÄHRSTOFFVERSORGUNG
subject: 610 Medizin

description: Die Ernährung spielt eine bedeutende Rolle für die Gesundheit, insbesondere für Kinder und Jugendliche. In der Ernährungsstudie EsKiMo (Ernährungsstudie als KiGGS-Modul) wurde im Jahr 2006, in Ergänzung zu der Basiserhebung der Studie zur Gesundheit von Kindern und Jugendlichen in Deutschland (KiGGS, 2003 – 2006), das Ernährungsverhalten von Kindern und Jugendlichen im Alter von 6 bis 17 Jahren detailliert erhoben. Das gleiche Ziel verfolgt EsKiMo II innerhalb von KiGGS Welle 2 (2014 – 2017). Hierzu führen geschulte Ernährungswissenschaftlerinnen von Juni 2015 bis September 2017 Hausbesuche durch. Den Eltern von 6- bis 11-Jährigen wird erklärt, wie Ernährungsprotokolle an vier zufällig ausgewählten Tagen – drei aufeinanderfolgenden Tagen und einem weiteren Tag – durchgeführt werden. Die 12- bis 17-Jährigen werden mit dem Ernährungsinterviewprogramm DISHES persönlich zu ihrer Ernährung der letzten vier Wochen befragt. Darüber hinaus werden weitere Informationen, beispielsweise zum Konsum von Nahrungsergänzungsmitteln, erhoben. EsKiMo II liefert eine aktuelle und repräsentative Bestandsaufnahme der Ernährungssituation von 6- bis 17-Jährigen in Deutschland und ermöglicht zudem die Analyse zeitlicher Veränderungen im Ernährungsverhalten. EsKiMo II kann Defizite in der Ernährung von Kindern und Jugendlichen aufzeigen und liefert damit wichtige Informationen zum Handlungsbedarf für die Ernährungs- und Gesundheitspolitik.
Production and utilization of methane from cowshed gas on farms
Creators: name: Arnim, Felix Von
name: Gerdes, Christina Judith
name: Geimer, Marcus
Publisher: name: VDI Verlag
Year: 2024
Subjects: cowshed gas
green house gas
low-concentration methane
diffusion
enrichment
separation
cryogenic cooling

description: Methane from cattle farming has a significant influence on climate change. In order to reduce this influence and utilise the potential of methane as an energy source on farms at the same time, the enrichment and separation of cowshed gas was investigated using a diffusion tower and a cryogenic cooling system, both on a laboratory scale. A diffusion enrichment of the methane content (initial concentration < 0.01 Vol. %) from the cowshed gas as described in [1] could not be achieved. The separation of methane from cowshed gas using cryogenic cooling was possible with high purity but high energy consumption. However, increased enrichment using other methods and a continuous process in general can lead to successful enrichment and separation of methane from cowshed gas, the utilisation of this methane on farms and the reduction of methane emissions.
Sign depth for parameter tests in multiple regression
Creators: name: Horn, Melanie
Publisher: name: TU Dortmund
Year: 2021
Subjects: subject: Multiple regression
subject: Sign depth
subject: Robust statistics
subject: 310
subject: Multiple lineare Regression
subject: Robuste Schätzung
subject: Datentiefe
subject: Programmpaket

description: This thesis deals with the question how the sign depth test can be applied in the case of multiple regression. Because the result of this test depends on the ordering of the residuals and most times no inherent order is available for multidimensional values one has to think about suitable methods to order these values. In this thesis 13 different ordering methods are described, analyzed and compared with respect to characteristics, computational behavior and performance when using them in the context of sign depth tests. For the last one, several simulations of power functions for many different settings have been carried out. In the simulations different data situations as well as different multiple regression models and different parameters of the sign depth were examined. It is shown in this thesis that a group of so-called “distance based ordering methods” performs best and leads to satisfying results of the sign depth test. Also compared to other tests for regression parameters like the Wald test or the classical sign test the sign depth test performs satisfyingly and especially in the case of testing for model checks it performs clearly better. In addition, this thesis describes the contents and functionality of the R -package GSignTest which was written for this thesis and contains implementations of the sign depth, the sign depth test and the different ordering methods.
High Resolution 2-D Fluorescence Imaging Of Gas Transfer
Creators: name: Kräuter, Christine
name: Trofimova, Darya
name: Nagel, Leila
name: Jähne, Bernd
Publisher: name: Zenodo
Year: 2014
Subjects: air-water gas exchange
fluorescence
high-resolution

description: A novel 2-D fluorescence imaging technique has been developed to visualize gas exchange between air and water using ammonia as a tracer. Fluorescence is stimulated by high-power LEDs and is observed from above with a low-noise, high-resolution and high-speed camera.  The invasion of ammonia into water leads to an increase in pH (from a starting value of 4), which is visualized with a fluorescent dye. The flux of ammonia can be controlled by controlling its air-side concentration. A higher flux leads to an increase of the thickness of the layer, from which fluorescent light is emitted (pH > 7).  In this way, a varying fraction of the thickness of the aqueous mass boundary layer is imaged. In addition to the fluorescence measurement, we conducted collocated and simultaneous thermography and wave imaging measurements. With this data set, it is possible to compare heat and gas transfer and to investigate the effect of waves on both transfer processes.  First results will be presented.