cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Ground-state properties of few dipolar bosons in a quasi-one-dimensional harmonic trap
Creators: name: Deuretzbacher, Frank
name: Cremon, J.C.
name: Reimann, S.M.
Publisher: name: College Park, MD : American Physical Society
Year: 2010
Subjects: subject: Bose gas
subject: Boson systems
subject: Crystalline state
subject: Dipolar interaction
subject: Dipole dipole interactions
subject: Dipole-dipole potential
subject: Exact diagonalization method
subject: Ground state properties
subject: Interacting bosons
subject: Interaction energies
subject: Localized wave packets
subject: Momentum distributions
subject: Quasi-one-dimensional
subject: Short-range correlations
subject: Tonks-Girardeau gas
subject: Two-regime
subject: Wigner crystals
subject: Crystalline materials
subject: Ground state
subject: Bosons
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the ground state of few bosons with repulsive dipole-dipole interaction in a quasi-one-dimensional harmonic trap by means of the exact diagonalization method. Up to three interaction regimes are found, depending on the strength of the dipolar interaction and the ratio of transverse to axial oscillator lengths: a regime where the dipolar Bose gas resembles a system of weakly ?-interacting bosons, a second regime where the bosons are fermionized, and a third regime where the bosons form a Wigner crystal. In the first two regimes, the dipole-dipole potential can be replaced by a ? potential. In the crystalline state, the overlap between the localized wave packets is strongly reduced and all the properties of the boson system equal those of its fermionic counterpart. The transition from the Tonks-Girardeau gas to the solidlike state is accompanied by a rapid increase of the interaction energy and a considerable change of the momentum distribution, which we trace back to the different short-range correlations in the two interaction regimes. © 2010 The American Physical Society.
Spins and Magnetic Moments of $^{49}$K and $^{51}$K: establishing the 1/2$^+$ and 3/2$^+$ level ordering beyond $N$ = 28
Creators: name: Papuga, J.
name: Bissell, M. L.
name: Kreim, K.
name: Blaum, K.
name: Brown, B. A.
name: De Rydt, M.
name: Ruiz, R. F. Garcia
name: Heylen, H.
name: Kowalska, M.
name: Neugart, R.
name: Neyens, G.
name: Nörtershäuser, W.
name: Otsuka, T.
name: Rajabali, M. M.
name: Sánchez, R.
name: Utsuno, Y.
name: Yordanov, D. T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The ground-state spins and magnetic moments of $^{49,51}$K have been measured using bunched-beam high-resolution collinear laser spectroscopy at ISOLDE-CERN. For $^{49}$K a ground-state spin $I = 1/2$ was firmly established. The observed hyperfine structure of $^{51}$K requires a spin $I > 1/2$ and from its magnetic moment $μ(^{51}\text{K})= +0.5129(22)\, μ_N$ a spin/parity $I^π=3/2^+$ with a dominant $π1d_{3/2}^{-1}$ hole configuration was deduced. This establishes for the first time the re-inversion of the single-particle levels and illustrates the prominent role of the residual monopole interaction for single-particle levels and shell evolution.
description: 5 pages, 3 figures
Multiconfiguration time-dependent Hartree approach for electron-nuclear correlation in strong laser fields
Creators: name: Jhala, Chirag
name: Lein, Manfred
Publisher: name: College Park, MD : American Physical Society
Year: 2010
Subjects: subject: Degree of freedom
subject: External laser fields
subject: Hartree approach
subject: High order harmonic generation
subject: Hydrogen molecular ion
subject: Laser fields
subject: Laser induced
subject: Multiconfiguration
subject: Nuclear degree of freedom
subject: Single-particle functions
subject: Strong laser field
subject: Time-dependent
subject: Degrees of freedom (mechanics)
subject: High energy physics
subject: Laser optics
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The multiconfiguration time-dependent Hartree approach is applied to study the electron-nuclear correlation in the dynamics of molecules subject to strong external laser fields, using the example of a model hydrogen molecular ion. The ground state of the system is well described by as few as two single-particle functions per degree of freedom. A significantly larger but moderate number of configurations is required to predict laser-induced fragmentation probabilities and high-order harmonic generation spectra accurately, showing that the correlation between electronic and nuclear degree of freedom is strongly increased by the presence of the laser field. © 2010 The American Physical Society.
title: „Tendenzen der zwanziger Jahre". Zur 15. Europarat-Ausstellung, Berlin 1977
Creators: name: Nerdinger, Winfried
Publisher: name: University Library Heidelberg
Year: 2016

description: kritische berichte - Zeitschrift für Kunst- und Kulturwissenschaften, Bd. 6, Nr. 3 (1978): kritische berichte, Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Crossover of magnetoresistance in the zerogap half-metallic Heusler alloy Fe2CoSi
Creators: name: Du, Y.
name: Xu, G. Z.
name: Zhang, X. M.
name: Liu, Z. Y.
name: Yu, S. Y.
name: Liu, E. K.
name: Wang, W. H.
name: Wu, G. H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This work reports on the band structure and magneto-transport investigations of the inverse Heusler compound Fe2CoSi. The first-principles calculations reveal that Fe2CoSi has a very peculiar band structure with a conducting property in the majority spin channel and a nearly zero bandgap in the minority spin channel. The synthesized Fe2CoSi sample shows a high-ordered inverse Heusler structure with a magnetic moment of 4.88 μB at 5 K and a high Curie temperature of 1038 K. With increasing temperature, a crossover from positive to negative magnetoresistance (MR) is observed. Complemented with the Hall effect measurements, we suggest the intriguing crossover of MR can be ascribed to the dominant spin carriers changing from the gapless minority spin channel to the majority spin channel at Fermi level.
description: 16 pages, 5 figures, submitted for publication
D1.1. KGSIR on improved characterisation and understanding of the ERF concept
Creators: name: CONSTRAIN
Publisher: name: Zenodo
Year: 2020
Subjects: Effective Radiative Forcing
climate system
climate models
aerosol-cloud interactions

description: Work Package: WP1
Deliverable number: D1.1
Deliverable title: KGSIR on improved characterisation and understanding of the ERF concept
Key messages:

This KGSIR summarizes recent advances in our understanding of Effective Radiative Forcing (ERF), and methods to quantify ERF.
ERF is better constrained by using key observations of changes to the climate system in recent advances.
Uncertainties in ERF due to changes in CO2 and other climate forcers remain substantial.
Knowledge gains have been achieved on comparing various climate drivers relative to CO2 changes.
Next steps are to quantify causes of the diversity in ERF due to CO2 in climate models, and improve understanding of aerosol-cloud interactions and thereby their ERF.
Cite as:Myhre, G. and J. Quaas (2020). Improved characterization and understanding of the ERF concept. Knowledge Gains: Summary and Implication Report 1. The CONSTRAIN Project. DOI: 10.5281/zenodo.10124682.
Temperature-dependent accommodation of two lattices of largely different size during growth
Creators: name: Sprodowski, Carsten
name: Morgenstern, Karina
Publisher: name: Basel : MDPI AG
Year: 2019
Subjects: subject: Heteroepitaxial growth
subject: Lattice mismatch
subject: Scanning tunneling microscopy
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: If a material grows on another material with a largely different lattice constant, which of the two adapts for an energetically favorable growth? To tackle this question, we investigate the growth of Ag on Cu(111) by variable temperature scanning tunneling microscopy. The structures grown between 120 and 170 K are remarkably different from those grown between 200 and 340 K. The low-temperature structure is rectangular-like and consists of stacked rods, 7 to 8 Ag atoms long, which form a superstructure without long-range order. This structure covers the whole surface prior to nucleation of further layers. The high-temperature structure is hexagonal and consists of misfit dislocations forming 8 × 8 to 10 × 10 superstructures. For this structure, second layer nucleation sets in far before the closure of the first monolayer. While both structures are driven by the large lattice misfit between the two materials, the growing Ag layer adapts to the Cu surface at low temperature, while the Cu surface adapts to the growing Ag layer at higher temperature.
A search for HI 21cm absorption towards a radio-selected quasar sample II: a new low spin temperature DLA at high redshift
Creators: name: Kanekar, Nissim
name: Ellison, Sara L.
name: Momjian, Emmanuel
name: York, Brian A.
name: Pettini, Max
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We report results from a deep search for redshifted HI 21cm absorption from eight damped Lyman-$α$ absorbers (DLAs) detected in our earlier optical survey for DLAs towards radio-loud quasars. HI 21cm absorption was detected from the $z = 2.192$ DLA towards TXS2039+187, only the sixth case of such a detection at $z > 2$, while upper limits on the HI 21cm optical depth were obtained in six other DLAs at $z > 2$. Our detection of HI 21cm absorption in the eighth system, at $z = 2.289$ towards TXS0311+430, has been reported earlier. We also present high spatial resolution images of the background quasars at frequencies close to the redshifted HI 21cm line frequency, allowing us to estimate the covering factor of each DLA, and then determine its spin temperature $T_s$. For three non-detections of HI 21cm absorption, we obtain strong lower limits on the spin temperature, $T_s \gtrsim 790$ K, similar to the bulk of the high-$z$ DLA population; three other DLAs yield weak lower limits, $T_s > 140-400$ K. However, for the two DLAs with detections of HI 21cm absorption, the derived spin temperatures are both low $T_s = (160 \pm 35) \times (f/0.35)$ K for the $z = 2.192$ DLA towards TXS2039+187 and $T_s = (72 \pm 18) \times (f/0.52)$ K for the $z = 2.289$ DLA towards TXS0311+430. These are the first two DLAs at $z > 1$ with $T_s$ values comparable to those obtained in local spiral galaxies. Based on the observed correlations between spin temperature and metallicity and velocity spread and metallicity in DLAs, we suggest that the hosts of the two absorbers are likely to be massive, high-metallicity galaxies.
description: 8 pages, 4 figures. Accepted for publication in the Monthly Notices of the Royal Astronomical Society
Relativistic Kinetic Theory: An Introduction
Creators: name: Sarbach, Olivier
name: Zannias, Thomas
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a brief introduction to the relativistic kinetic theory of gases with emphasis on the underlying geometric and Hamiltonian structure of the theory. Our formalism starts with a discussion on the tangent bundle of a Lorentzian manifold of arbitrary dimension. Next, we introduce the Poincare one-form on this bundle, from which the symplectic form and a volume form are constructed. Then, we define an appropriate Hamiltonian on the bundle which, together with the symplectic form yields the Liouville vector field. The corresponding flow, when projected onto the base manifold, generates geodesic motion. Whenever the flow is restricted to energy surfaces corresponding to a negative value of the Hamiltonian, its projection describes a family of future-directed timelike geodesics. A collisionless gas is described by a distribution function on such an energy surface, satisfying the Liouville equation. Fibre integrals of the distribution function determine the particle current density and the stress-energy tensor. We show that the stress-energy tensor satisfies the familiar energy conditions and that both the current and stress-energy tensor are divergence-free. Our discussion also includes the generalization to charged gases, a summary of the Einstein-Maxwell-Vlasov system in any dimensions, as well as a brief introduction to the general relativistic Boltzmann equation for a simple gas.
description: Prepared for the proceedings of the IX Mexican School of the Gravitation and Mathematical Physics Division of the Mexican Physical Society, 30 pages, 1 figure
title: Qatar and the 2022 FIFA World Cup
Creators: name: Sherrah, Sebastian Edward
Year: 2023

description: Die FIFA Fussball-Weltmeisterschaft 2022 in Katar wurde im Vorfeld des Turniers in einem noch nie dagewesenen Ausmaß kritisiert. Kontroversen über Korruption, Menschenrechtsverletzungen, die Rechte von Frauen und LGBTQ+ Personen, vermeintliches "Sportswashing" und die Verfügbarkeit von Alkohol wurden zu alltäglichen Diskussionen. Reddit - eine soziale Nachrichten-Website und Forum - beherbergt das größte Fußball- Diskussionsforum im Internet, bekannt als /r/soccer. Mithilfe von Techniken des maschinellen Lernens wie der Themenmodellierung können wir Textdaten automatisch analysieren, um herauszufinden, ob diese Kontroversen als Themen auftreten und wie weit sie verbreitet sind. Hierzu wurden Kommentare, die vor, während und nach der Fußballweltmeisterschaft auf /r/soccer veröffentlicht wurden, gesammelt und in "top2vec", einen Algorithmus zur Themenmodellierung und semantischen Suche, eingegeben. Durch unsere Analysen konnten wir einschlägige Themen im Zusammenhang mit Korruption, Menschenrechten und Rechten von LGBTQ+ Personen, sowie umstrittenen Einschränkungen des Alkoholkonsums identifizieren. Wir konnten jedoch keine expliziten Themen im Zusammenhang mit "Sportswashing", "Terminkontroversen" oder "bezahlten Fans" identifizieren. Diese Studie unterstreicht das Potenzial solcher Techniken, um ein tieferes Verständnis komplizierter und subtiler Themen in umfangreichen Textdatensätzen zu entwickeln.
description: The 2022 FIFA World Cup in Qatar saw court an unprecedent amount of criticism in the lead up to the tournament. Controversies surrounding corruption, human rights abuses, the rights of women and LGBTQ+ persons, perceived ‘sportswashing’, and the availability of alcohol, were commonplace discussions. Reddit – a social news website and forum – hosts the single largest dedicated football discussion form on the internet known as /r/soccer. Machine learning techniques such as topic modelling allow us to automatically analyse text data to discover whether these controversies occur as topics and their prevalence. Comments made before, during, and after the World Cup were extracted from /r/soccer and fed into ‘top2vec’ an algorithm for topic modelling and semantic search. Through our analysis, we successfully identified pertinent topics and themes related to corruption, human and LGBTQ+ rights, and controversial restrictions on alcohol consumption. However, we could not identify explicit topics related to ‘sportswashing’, ‘scheduling controversy’, or ‘paid fans’. This study emphasizes the potential of employing such techniques to develop a more profound comprehension of intricate and subtle subject matters in extensive text datasets.
Chandra View of the Ultra-Steep Spectrum Radio Source in Abell 2443: Merger Shock-Induced Compression of Fossil Radio Plasma?
Creators: name: Clarke, T. E.
name: Randall, S. W.
name: Sarazin, C. L.
name: Blanton, E. L.
name: Giacintucci, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a new Chandra X-ray observation of the intracluster medium in the galaxy cluster Abell 2443, hosting an ultra-steep spectrum radio source. The data reveal that the intracluster medium is highly disturbed. The thermal gas in the core is elongated along a northwest to southeast axis and there is a cool tail to the north. We also detect two X-ray surface brightness edges near the cluster core. The edges appear to be consistent with an inner cold front to the northeast of the core and an outer shock front to the southeast of the core. The southeastern edge is coincident with the location of the radio relic as expected for shock (re)acceleration or adiabatic compression of fossil relativistic electrons.
description: 12 pages, 9 figures; Accepted for publication in The Astrophysical Journal
Methods and results of a search for gravitational waves associated with gamma-ray bursts using the GEO 600, LIGO, and Virgo detectors
Creators: name: Aasi, J.
name: Allen, Bruce
name: Ast, Stefan
name: Aufmuth, Peter
name: Danzmann, Karsten
name: Kaufer, S.
name: Lück, Harald
name: Meier, Tobias
name: Schnabel, R.
name: Vahlbruch, H.
name: Willke, Benno
name: Et Al.
name: LIGO Scientific Collaboration
name: Collaboration, Virgo
Publisher: name: College Park, MD : American Physical Society
Year: 2014
Subjects: subject: Gravitational waves
subject: Gamma-Ray Bursts
subject: Gravitationswelle
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In this paper we report on a search for short-duration gravitational wave bursts in the frequency range 64 Hz–1792 Hz associated with gamma-ray bursts (GRBs), using data from GEO 600 and one of the LIGO or Virgo detectors. We introduce the method of a linear search grid to analyze GRB events with large sky localization uncertainties, for example the localizations provided by the Fermi Gamma-ray Burst Monitor (GBM). Coherent searches for gravitational waves (GWs) can be computationally intensive when the GRB sky position is not well localized, due to the corrections required for the difference in arrival time between detectors. Using a linear search grid we are able to reduce the computational cost of the analysis by a factor of O(10) for GBM events. Furthermore, we demonstrate that our analysis pipeline can improve upon the sky localization of GRBs detected by the GBM, if a high-frequency GW signal is observed in coincidence. We use the method of the linear grid in a search for GWs associated with 129 GRBs observed satellite-based gamma-ray experiments between 2006 and 2011. The GRBs in our sample had not been previously analyzed for GW counterparts. A fraction of our GRB events are analyzed using data from GEO 600 while the detector was using squeezed-light states to improve its sensitivity; this is the first search for GWs using data from a squeezed-light interferometric observatory. We find no evidence for GW signals, either with any individual GRB in this sample or with the population as a whole. For each GRB we place lower bounds on the distance to the progenitor, under an assumption of a fixed GW emission energy of 10−2M⊙c2, with a median exclusion distance of 0.8 Mpc for emission at 500 Hz and 0.3 Mpc at 1 kHz. The reduced computational cost associated with a linear search grid will enable rapid searches for GWs associated with Fermi GBM events once the advanced LIGO and Virgo detectors begin operation. © 2014 The American Physical Society
title: ОБРАЗ БУДУЩЕЙ СЕМЬИ В ПРЕДСТАВЛЕНИИ ШКОЛЬНИКОВ И СТУДЕНТОВ
Creators: name: Трубникова, Елизавета
name: Ёлкина, Ксения
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2022

description: В данной статье раскрыта сущность понятия «образ семьи» и представлен сравнительный анализ результатов диагностического исследования образа семьи в представлении школьников и студентов. Изучены следующие характеристики образа семьи: компоненты семьи (полнота; репродуктивные установки; ценности; представления о роли бабушек и дедушек в воспитании), изучены взгляды на распределение ролей в семье (финансовое обеспечение; хозяйственно-бытовая функция; досуг; воспитание детей), выявлены представления школьников и студентов об идеальной семье.
CUNEL - Connectomes for Undergraduate Neuroscience Education and Learning (RCN-UBE Introduction)
Creators: name: Bellemer, Andrew
name: Sitaraman, Divya
name: Colodner, Kenneth
Publisher: name: QUBES Educational Resources
Year: 2023

description: The Connectomes for Undergraduate Neuroscience Education and Learning (CUNEL) project seeks to bring cutting-edge neuroscience methods into undergraduate classrooms and laboratories in order to provide authentic research experiences.
Increasing the Network life Time by Simulated Annealing Algorithm in WSN with Point Coverage
Creators: name: Azami, Mostafa
name: Ranjbar, Manij
name: rostami, Ali Shokouhi
name: Amiri, Amir Jahani
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences
subject: F.2.2
subject: 2010

description: Since we are not able to replace the battery in a wireless sensor networks (WSNs), the issues of energy and lifetime are the most important parameters. In asymmetrical networks, different sensors with various abilities are used. Super nodes, with higher power and wider range of communication in comparison with common sensors, are used to cause connectivity and transmit data to base stations in these networks. It is crucial to select the parameters of fit function and monitoring sensors optimally in a point covering network. In this paper, we utilized an algorithm to select monitoring sensors. The selection is done by using a novel algorithm that used by simulated annealing. This selection takes remained energy into consideration. This method increases lifetime, decreases and balances energy consumption as confirmed by simulation results.
description: 15 pages, 8 figures
Supplement to a systematic review supporting the Endocrine Society Clinical Practice Guideline on the treatment of hypercalcemia of malignancy in adults.
Creators: name: Seisa, Mohamed O.
name: Nayfeh, Tarek
name: Hasan, Bashar
name: firwana, Mohammed
name: Saadi, Samer
name: Prokop, Larry J.
name: Fuleihan, Ghada El-hajj
name: Wang, Zhen
name: Shah, Sahrish H.
name: T. Drake, Matthew
name: Murad, M. Hassan
Publisher: name: figshare
Year: 2022
Subjects: subject: 110306 Endocrinology
subject: FOS: Clinical medicine

description: A supplement to a clinical practice guideline.
Observation of phase fluctuations in elongated bose-einstein condensates
Creators: name: Dettmer, S.
name: Hellweg, D.
name: Ryytty, P.
name: Arlt, Jan J.
name: Ertmer, Wolfgang
name: Sengstock, K.
name: Petrov, D.S.
name: Shlyapnikov, G.V.
name: Kreutzmann, H.
name: Santos, Luis
name: Lewenstein, M.
Publisher: name: American Physical Society
Year: 2001
Subjects: subject: Atoms
subject: Computer simulation
subject: Interferometry
subject: Laser beams
subject: Polynomials
subject: Quantum theory
subject: Rubidium
subject: Temperature
subject: Bose Einstein condensates
subject: Guided atom laser beams
subject: Magnetic trap
subject: Phase coherence
subject: Phase fluctuations
subject: Thermal excitations
subject: Electron gas
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The occurrence of phase fluctuations due to thermal excitations in Bose-Einstein condensates (BECs) is studied for a variety of temperatures and trap geometries. We observe the statistical nature of the appearance of phase fluctuations and characterize the dependence of their average value on temperature, number of particles, and the trapping potential. We find pronounced phase fluctuations for condensates in very elongated traps in a broad temperature range. The results are of great importance for the realization of BEC in quasi-1D geometries, for matter wave interferometry with BECs, as well as for coherence properties of guided atom laser beams. © 2001 American Physical Society.
Protonen-induzierte Restkernproduktion in schweren Elementen bei mittleren Energien
Creators: name: Gloris, Martin
Publisher: name: Hannover : Universität
Year: 1998
Subjects: subject: Nuclear reactions
subject: nuclide production cross section
subject: theoretical modelling
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Trust in the CODA model: Opinion Dynamics and the reliability of other agents
Creators: name: Martins, André C. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Multiagent Systems (cs.MA)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A model for the joint evolution of opinions and how much the agents trust each other is presented. The model is built using the framework of the Continuous Opinions and Discrete Actions (CODA) model. Instead of a fixed probability that the other agents will decide in the favor of the best choice, each agent considers that other agents might be one one of two types: trustworthy or useless. Trustworthy agents are considered more likely to be right than wrong, while the opposite holds for useless ones. Together with the opinion about the discussed issue, each agent also updates that probability for each one of the other agents it interacts withe probability each one it interacts with is of one type or the other. The dynamics of opinions and the evolution of the trust between the agents are studied. Clear evidences of the existence of two phases, one where strong polarization is observed and the other where a clear division is permanent and reinforced are observed. The transition seems signs of being a first-order transition, with a location dependent on both the parameters of the model and the initial conditions. This happens despite the fact that the trust network evolves much slower than the opinion on the central issue.
description: 15 pages, 14 figures
title: One event - two stories
Creators: name: Riedler, Sophie
Year: 2023

description: Das vorliegende Forschungsprojekt stellt eine empirische wissenschaftliche Analyse politischer Narrative während der Coronapandemie 2020 dar. Da sich die wissenschaftliche Debatte über Covid-19 bis dato vorrangig auf politische Strategien zur Eindämmung des Virus konzentriert, wird in dieser qualitativen Untersuchung der Frage nachgegangen, welche unterschiedlichen narrativen Erzählstrukturen politischer Kommunikation der Krise zugrunde liegen. Theoretisch wird dabei auf den Rahmen des Narrative Policy Frameworks zurückgegriffen. Die qualitative Inhaltsanalyse vergleicht die über Social-Media vermittelte politisch-konstruierte Realität des österreichischen Bundeskanzlers Sebastian Kurz und der neuseeländischen Premierministerin Jacinda Ardern im Zeitraum März 2020 bis November 2020. Zusammenfassend lassen sich insbesondere in der Schilderung der Ausgangslage Parallelen in beiden politischen Narrativen erkennen. Auch die Konstruktion des Coronavirus als politisches Feindbild sowie die Notwendigkeit umfassender Containment Maßnahmen werden als gemeinsamer Nenner beider Narrative sichtbar. Unterschiede ergeben sich insbesondere in der politischen Moral der Entscheidungsträger*innen. Zudem wird das Coronanarrativ von Jacinda Ardern anhand einer Vielfalt von Held*innen der Krise gegenüber einem berufsgruppen-spezifischen Held*innenbild bei Sebastian Kurz abgehandelt. An die Stelle von personifizierten Schurk*innen bei Jacinda Ardern treten im Narrativ von Sebastian Kurz überwiegend nicht-personifizierte Szenarien, die es zu vermeiden gilt.
On free-group algorithms that sandwich a subgroup between free-product factors
Creators: name: Dicks, Warren
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20E05, 20E36, 20E08

description: Let $F$ be a finite-rank free group and $H$ be a finite-rank subgroup of $F$. We discuss proofs of two algorithms that sandwich $H$ between an upper-layer free-product factor of $F$ that contains $H$ and a lower-layer free-product factor of $F$ that is contained in $H$. Richard Stong showed that the unique smallest-possible upper layer, denoted $\operatorname{Cl}(H)$, is visible in the output of the polynomial-time cut-vertex algorithm of J. H. C. Whitehead. Stong's proof used bi-infinite paths in a Cayley tree and sub-surfaces of a three-manifold. We give a variant of his proof that uses edge-cuts of the Cayley tree induced by edge-cuts of a Bass-Serre tree. A. Clifford and R. Z. Goldstein gave an exponential-time algorithm that determines whether or not the trivial subgroup is the only possible lower layer. Their proof used Whitehead's three-manifold techniques. We give a variant of their proof that uses Whitehead's cut-vertex results, and thereby obtain a somewhat simpler algorithm that yields a lower layer of maximum-possible rank.
title: A comparative study between the images of Judith and Holofernes and David and Goliath in the history of European art with special reference to the period 1400-1700
Creators: name: Philpot, Elizabeth
Publisher: name: University of Glasgow
Year: 1999

description: The purpose of this dissertation is to conduct a comparative study analysing the main similarities and differences in the visual arts between two biblical subjects - namely that of Judith and Holofernes and David and Goliath with special reference to the period 1400-1700 when the greatest number of images was produced, although other periods are also discussed. While carrying out this comparison, the thesis elucidates the reasons why some artists and sculptors produce a near faithful rendition of events described in the Bible and the Apocryphal Book of Judith, while others fail to depict anything remotely true to the biblical texts. The greater emphasis of this study is on works of art in Western Europe where the discussion centres around differing treatments given to these subjects by Northern artists (especially Protestant ones), vis-a-vis their contemporaries in Catholic countries. Consideration is given to the images as regards patronage and the intellectual and religious climate of the period in which the artist worked especially during the Reformation and Counter- Reformation. Judith and David are examined throughout this period in terms of their respective roles in salvation history (Heilsgeschichte). The different typological interpretations and functions of the contents of the paintings and sculptures are also discussed. In order to ascertain how far artists and sculptors have consulted the biblical texts and early source material, the images are evaluated under separate headings which are subdivided into different "types" which appertain to both Judith and David. These can be categorised as images of Judith and David together, as a personification of certain virtues, heroic and triumphant portrayals, contemplative images and where the painter or sculptor uses his or her face for either Judith and David or Holofernes and Goliath. The conclusions show that during the Middle Ages artists conformed to the exegeses of the Early Church Fathers and later theologians in manuscripts, illustrations, sculptures and wall paintings. Later, especially during the Reformation (1534), it was in the Protestant North (particularly in Flanders, Netherlands, Germany and Sweden) that artists of the sixteenth century adhered to biblical texts disseminated by woodcuts, prints and Bibles. This trend of near textual accuracy in pictorial representations is continued during the Counter-Reformation in the North when Protestant painters such as Rembrandt still closely followed the biblical narratives, while in the South (especially in Italy) artists observed the tenets of the Counter-Reformation, the teachings of the newly canonised saints and the individual tastes of patrons.
Capture of Trojans by Jumping Jupiter
Creators: name: Nesvorny, David
name: Vokrouhlicky, David
name: Morbidelli, Alessandro
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Jupiter Trojans are thought to be survivors of a much larger population of planetesimals that existed in the planetary region when planets formed. They can provide important constraints on the mass and properties of the planetesimal disk, and its dispersal during planet migration. Here we tested a possibility that the Trojans were captured during the early dynamical instability among the outer planets (aka the Nice model), when the semimajor axis of Jupiter was changing as a result of scattering encounters with an ice giant. The capture occurs in this model when Jupiter's orbit and its Lagrange points become radially displaced in a scattering event and fall into a region populated by planetesimals (that previously evolved from their natal transplanetary disk to ~5 AU during the instability). Our numerical simulations of the new capture model, hereafter jump capture, satisfactorily reproduce the orbital distribution of the Trojans and their total mass. The jump capture is potentially capable of explaining the observed asymmetry in the number of leading and trailing Trojans. We find that the capture probability is (6-8)x10^-7 for each particle in the original transplanetary disk, implying that the disk contained (3-4)x10^7 planetesimals with absolute magnitude H<9 (corresponding to diameter D=80 km for a 7% albedo). The disk mass inferred from this work, M_disk=14-28 M_Earth, is consistent with the mass deduced from recent dynamical simulations of the planetary instability.
description: The Astrophysical Journal, in press
Ranunculus reptans
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: R. reptans L. (R. Flammula ssp. reptans Syme) Cat. 8. l: Dorenaz (Garns). - 3: Ob La Forclaz (Miller); ob Gruben (Turtmanntal) (Beauverd); Bonigersee (Beauverd, Stehler) und Breitmattsee (Stehler) ob Törbel.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Chlorsiloxane : Hydrolytische Bildung, chromatographische Trennung und massenspektrometrische Charakterisierung
Creators: name: Quellhorst, Heike
Publisher: name: Hannover : Universität
Year: 1998
Subjects: subject: Chlorosiloxanes
subject: GC-MS
subject: sonochemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
Untersuchungen zum Abbrandverhalten von Holz- und Spanplattenproben mit einer TGA-FTIR-Kopplung
Creators: name: Ritzka, Yvonne
Publisher: name: Hannover : Universität
Year: 1998
Subjects: subject: Wood
subject: combustion
subject: TGA-FTIR
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: [no abstract]
title: DIAGNOSTICS OF AUTOIMMUNE LIVER DISORDERS IN HEMOBLASTOSIS
Creators: name: Levitan, Boleslav N.
name: Petelina, Ilona Yu.
name: Lokotosh, Marina S.
name: Zakliakova, Ludmila V.
name: Ovsiannikova, Elena G.
Publisher: name: Astrakhan State Medical University
Year: 2019

description: The article presents the analysis of the results of the study of hepatic membrane antibodies in blood serum using the method of indirect immunofluorescence assay. 51 patients with acute and chronic hepatitis “B”, 16 – with autoimmune hepatitis, 103 – with various hemoblastoses and 33 healthy donors were examined. The aim of the investigation was to assess the diagnostic value of hepatic membrane antibodies in patients with hemoblastoses as markers of autoimmune liver pathology and to establish the frequency of its development in hemoblastosis. The results obtained indicate a high diagnostic significance of the immunofluorescence technique to anti-membrane liver antibodies for the detection of autoimmune liver disease, including in patients with hemoblastoses. Timely detection of liver pathology and assessment of the severity of its autosensitization in hemoblastoses is of great value in complex therapy of the underlying disease and its hepatic complications. Key words: hemoblastosis, autoimmune liver disorders, hepatic membrane antibodies.
Polarisations-FTIR-Spektroskopie, Röntgenphotoelektronenspektroskopie und SPA-LEED-Untersuchungen zur Wechselwirkung von Wasser mit der NaCl(100)-Oberfläche
Creators: name: Rugullies, Andreas
Publisher: name: Hannover : Universität
Year: 1998
Subjects: subject: Surface physics
subject: adsorption
subject: water
subject: sodium chloride
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
$μ-H$ Lamb shift: dispersing the nucleon-excitation uncertainty with a finite energy sum rule
Creators: name: Gorchtein, Mikhail
name: Llanes-Estrada, Felipe J.
name: Szczepaniak, Adam P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We assess the two-photon exchange contribution to the Lamb shift in muonic hydrogen with forward dispersion relations. The subtraction constant $\bar T(0,Q^2)$ that is necessary for a dispersive evaluation of the forward doubly-virtual Compton amplitude, through a finite energy sum rule, is related to the fixed J=0 pole generalized to the case of virtual photons. We evaluated this sum rule using excellent virtual photoabsorption data that are available. We find that the "proton polarizability correction" to the Lamb shift in muonic hydrogen is $-(40\pm5)μ$eV. We conclude that nucleon structure-dependent uncertainty by itself is unlikely to resolve the large (300$μ$eV) discrepancy between direct measurement of the Lamb shift in $μH$ and expectations based on conventional Hydrogen measurements.
description: 8 pages, 4 figures, submitted to Phys. Rev. A
Die Nutzung neuerer PCR-gestützter molekularer Markertechniken zur Erstellung einer dicht besetzten Kopplungskarte des Roggens (Secale cereale L.)
Creators: name: Saal, Bernhard
Publisher: name: Hannover : Universität
Year: 1998
Subjects: subject: Faktorenkopplung
subject: Quantitatives Merkmal
subject: Roggen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Urban climate under change [UC]2 - A national research programme for developing a building-resolving atmospheric model for entire city regions
Creators: name: Scherer, Dieter
name: Antretter, Floran
name: Bender, Steffen
name: Cortekar, Jörg
name: Emeis, Stefan
name: Fehrenbach, Ute
name: Gross, Günter
name: Halbig, Guido
name: Hasse, Jens
name: Maronga, Björn
name: Raasch, Siegfried
name: Scherber, Katharina
Publisher: name: Stuttgart : Gebrueder Borntraeger Verlagsbuchhandlung
Year: 2019
Subjects: subject: Air quality
subject: Applicability tests
subject: Building-resolving atmospheric model
subject: Climate change
subject: Data management
subject: Large eddy simulation
subject: Model validation
subject: Observational data
subject: Urban climate
subject: Urban planning
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Large cities and urban regions are confronted with rising pressure by environmental pollution, impacts of climate change, as well as natural and health hazards. They are characterised by heterogeneous mosaics of urban structures, causing modifications of atmospheric processes on different temporal and spatial scales. Planning authorities need reliable, locally relevant information on urban atmospheric processes, providing fine spatial resolutions in city quarters or street canyons, as well as projections of future climates, specifically downscaled to individual cities. Therefore, building-resolving urban climate models for entire city regions are required as a tool for urban development and planning, air quality control, as well as for design of actions for climate change mitigation and adaptation. To date, building-resolving atmospheric models covering entire large cities are mostly missing. The German research programme “Urban Climate Under Change” ([UC]2) aims at developing a new urban climate model, acquiring three-dimensional observational data for model testing and validation, and testing its practicability and usability in collaboration with relevant stakeholders to provide a scientifically sound and practicable instrument to address the above mentioned challenges. This article provides an outline of the collaborative activities of the [UC]2 research programme.
Discontinuous Electromagnetic Fields Using Huygens Sources For Wavefront Manipulation
Creators: name: Selvanayagam, Michael
name: Eleftheriades, George V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We introduce the idea of discontinuous electric and magnetic fields at a boundary to design and shape wavefronts in an arbitrary manner. To create this discontinuity in the field we use electric and magnetic currents which act like a Huygens source to radiate the desired wavefront. These currents can be synthesized either by an array of electric and magnetic dipoles or by a combined impedance and admittance surface. A dipole array is an active implementation to impose discontinuous fields while the impedance/admittance surface acts as a passive one. We then expand on our previous work showing how electric and magnetic dipole arrays can be used to cloak an object demonstrating two novel cloaking schemes. We also show how to arbitrarily refract a beam using a set of impedance and admittance surfaces. Refraction using the idea of discontinuous fields is shown to be a more general case of refraction using phase discontinuities.
Untersuchung und Design von DNA-Kontakten der Restriktionsendonuklease EcoRI inner- und außerhalb der Erkennungssequenz
Creators: name: Rosati, Olaf
Publisher: name: Hannover : Universität Hannover
Year: 1999
Subjects: subject: EcoRI
subject: metall-ion binding site
subject: phosphate contacts
subject: methylphosphonates
subject: enlargement of specificity
subject: DNS-Bindung
subject: Restriktionsenzym EcoRI
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
The Near Infrared Ca II Triplet as Metallicity Indicator: II Extension to extremely metal-poor metallicity regimes
Creators: name: Carrera, R.
name: Pancino, E.
name: Gallart, C.
name: del Pino, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We extend our previous calibration of the infrared Ca II triplet as metallicity indicator to the metal-poor regime by including observations of 55 field stars with [Fe/H] down to -4.0 dex. While we previously solved the saturation at high-metallicity using a combination of a Lorentzian plus a Gaussian to reproduce the line profiles, in this paper we address the non-linearity at low-metallicity following the suggestion of Starkenburg et al 2010 of adding two non-linear terms to the relation among the [Fe/H], luminosity, and strength of the Calcium triplet lines. Our calibration thus extends from -4.0 to +0.5 in metallicity and is presented using four different luminosity indicators: V-V_{HB}, M_V, M_I, and M_K. The calibration obtained in this paper results in a tight correlation between [Fe/H] abundances measured from high resolution spectra and [Fe/H] values derived from the CaT, over the whole metallicity range covered.
description: 12 pages, 11 figures, Accepted for publication in MNRAS
Analytical volume model for optimized spatial radar bat detection in onshore wind parks
Creators: name: Kreutzfeldt, Jannes
name: Floeter, Carolin
name: Lingner, Thies
name: Schmitz-Beuting, Lukas
name: Reich, Michael
name: Kunz, Veit Dominik
Publisher: name: San Francisco, Ca. : PLOS
Year: 2020
Subjects: subject: adult
subject: calibration
subject: computer simulation
subject: human
subject: noise
subject: telecommunication
subject: Dewey Decimal Classification::500 | Naturwissenschaften
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: To develop mitigation measures for the protection of bats in close proximity to onshore wind turbines, new detection techniques covering large-scale environments and techniques, which are able to track individuals are required. Radar based observations, successfully applied in ornithological studies, offer a promising potential, but come with challenges regarding the comparability of measurements and noise interference (ground clutter) from objects within detection range. This paper presents improvements of a commercially available inexpensive pulse radar for 3D spatial detection of bat-sized objects in onshore wind parks. A new analytical spatial detection volume model is presented incorporating calibrated radar data and landscape parameters such as clutter. Computer simulation programs to process the analytical spatial detection volume model were developed. For model calibration, the minimum signal power of the radar was experimentally determined with the radar cross section (RCS) of an artificial bat (similar to Nyctalus noctula), resulting in a maximum detection range of 800 m and a corresponding RCS of 12.7 cm2. Additionally, the spatial volume for radar detection was optimized with a clutter shielding fence (CSF). Adjusting the volume model by incorporating a theoretical model of the CSF, an extension of the detection volume by a factor of 2.5 was achieved, while the total volume of a 105o horizontal angular radar image section yields 0.0105 km3. Extrapolation and comparison with state-of-the-art acoustic bat detection result in a 270 times larger volume, confirming the large-scale detection capabilities of the pulse radar.
title: DEVELOPMENT AND BIOLOGICAL INVESTIGATIONS OF COMPLEX EXTRACTION WITH MEMBRANE STABILIZING AND ANTIOXIDANT ACTIVITY
Creators: name: Lokarev, Aleksandr V.
name: Ogay, Marina A.
name: Stepanova, Eleonora F.
name: Kovtun, Elena V.
name: Chakhirova, Anna A.
name: Nam, Nataliya L.
name: Izhagaeva, Suriyat G.
Publisher: name: Astrakhan State Medical University
Year: 2019

description: Technological studies have been carried out on the development of a complex medicinal collection, the extraction from which affects the processes arising as a result of lesions of the joints of inflammatory etiology. The result of the studies conducted on paramecia was the creation of an optimal complex including 13 objects of medicinal plant materials. Biological screening carried out on paramecia confirmed the membrane-stabilizing and antioxidant effect of the developed complex, which may suggest an anti-inflammatory action. The technological aspect of obtaining the complex extraction consisted of a remaceration method, where the ratio of “raw materials: extractant” is 1: 8. The studies have shown that the resulting alcohol-water extraction from the complex of medicinal plant raw materials meets the requirements of the State Pharmacopoeia of the XIII edition and makes it possible to refer it to Category 4 B microbiological purity. Compliance of the obtained data with the specified requirements will allow it to be used both as an independent medicinal product and as an intermediate product in the development of more complex dosage forms.
Key words: membrane stabilizing effect, antioxidant effect, complex phytoextract, alcohol-water extraction, ointments, paramecia.