cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Recension: Why we Teach Science (and Why we Should)
Creators: name: Kostas, Kampourakis
Publisher: name: Progress in Science Education (PriSE)
Year: 2023

description: Why do we teach science in schools? There are many usual responses to this question. Because scientific knowledge is useful for everyday life; because the developed reasoning skills are also useful in everyday life; because future citizens will need to be able to make decisions about important socio-scientific issues, and thus require both knowledge and reasoning skills from science, and so on. However, as John Rudolph brilliantly shows in his book Why we Teach Science (and Why we Should), the science education typically taught in US schools (and I would add almost everywhere else in the Western world) falls short from achieving these goals. Despite the declarations of policy makers on the importance of science for society and of curriculum developers on scientific literacy playing a major role in school education, public polls more often than not show that people lack both a solid understanding of science, and the trust in scientists, as became apparent during the COVID-19 pandemic. Why is this the case?
description: Progress in Science Education (PriSE), Vol. 7 No. 1 (2024)
Neuerwerbungen des Römisch-Germanischen Zentralmuseums aus Vorderasien
Creators: name: Driehaus, Jürgen
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017
Subjects: Bronzezeit; Vorderasien; Anatolien; Syrien; Kunsthandel

description: [nicht vorhanden / not available]
description: Jahrbuch des Römisch-Germanischen Zentralmuseums Mainz, Bd. 7 (1960)
Characterisation of local aluminum-alloyed contacts to silicon solar cells
Creators: name: Müller, Jens
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Silicon solar cell
subject: local aluminum alloying
subject: recombination
subject: kinetic model
subject: laser ablation
subject: analytic simulation
subject: Siliziumsolarzelle
subject: lokale Al Legierung
subject: Rekombination
subject: kinetisches Modell
subject: Laserablation
subject: analytische Simulation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Design and Development of Cooling Solutions for Rotating Detonation Engines
Creators: name: S S. Ramanagar
name: U. Sandri
name: L. Mazzei
name: A. Picchi
name: A. Andreini
Publisher: name: Zenodo
Year: 2022
Subjects: Detonation Combustion Engines (RDE), cooling solutions

description: One of the main challenges associated with the development of Rotating Detonation Combustion Engines (RDE) is dissipating the tremendous amount of heat generated by the high-frequency rotating detonation waves. The Current research aims to develop cooling designs for RDE.
Characterization and utilization of bacterial endophytes during in vitro culture of wild cherry (Prunus avium L.)
Creators: name: Quambusch, Mona
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Prunus avium
subject: in vitro propagation
subject: endophytes
subject: In-vitro-Vermehrung
subject: Endophyten
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Characterization and application of PEG-salt aqueous two-phase systems for liquid-liquid extraction of proteins
Creators: name: Glyk, Anna
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Aqueous two-phase systems (ATPS)
subject: liquid-liquid extraction
subject: protein partitioning
subject: design of experiments (DoE)
subject: Wässrige Zweiphasensysteme
subject: flüssig-flüssig-Extraktion
subject: Proteinverteilung
subject: statistische Versuchsplanung
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
DNS of horizontal open channel flow with finite-size, heavy particles at low solid volume fraction
Creators: name: Kidanemariam, Aman G.
name: Chan-Braun, Clemens
name: Doychev, Todor
name: Uhlmann, Markus
Publisher: name: arXiv
Year: 2013
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We have performed direct numerical simulation of turbulent open channel flow over a smooth horizontal wall in the presence of finite-size, heavy particles. The spherical particles have a diameter of approximately 7 wall units, a density of 1.7 times the fluid density and a solid volume fraction of 0.0005. The value of the Galileo number is set to 16.5, while the Shields parameter measures approximately 0.2. Under these conditions, the particles are predominantly located in the vicinity of the bottom wall, where they exhibit strong preferential concentration which we quantify by means of Voronoi analysis and by computing the particle-conditioned concentration field. As observed in previous studies with similar parameter values, the mean streamwise particle velocity is smaller than that of the fluid. We propose a new definition of the fluid velocity "seen" by finite-size particles based on an average over a spherical surface segment, from which we deduce in the present case that the particles are instantaneously lagging the fluid only by a small amount. The particle-conditioned fluid velocity field shows that the particles preferentially reside in the low-speed streaks, leading to the observed apparent lag. Finally, a vortex eduction study reveals that spanwise particle motion is significantly correlated with the presence of vortices with the corresponding sense of rotation which are located in the immediate vicinity of the near-wall particles.
description: accepted for publication in New J. Phys., 2013
Characterization of interaction between GABPI and the [beta]1,4Ga1NAcTransferaseB from Drosophila melanogaster
Creators: name: Kraft, Benjamin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Glykolipidbiosynthese
subject: beta1,4Ga1NAcTransferase
subject: Drosophila melanogaster
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Characterization of blade tip vortices on large-scale rotors
Creators: name: Bauknecht, André
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Blade tip vortex
subject: active twist actuation
subject: vortex reconstruction
subject: particle image velocimetry
subject: background-oriented schlieren
subject: flight test
subject: Blattspitzenwirbel
subject: aktive Blattverwindung
subject: Wirbelrekonstruktion
subject: Hintergrund-orientiertes Schlierenverfahren
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: [no abstract]
MPEC 2023-W02 : 2023 VR9
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 VR9

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Observation of the SU(4) Kondo state in a double quantum dot
Creators: name: Keller, A. J.
name: Amasha, S.
name: Weymann, I.
name: Moca, C. P.
name: Rau, I. G.
name: Katine, J. A.
name: Shtrikman, Hadas
name: Zaránd, G.
name: Goldhaber-Gordon, D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Central to condensed matter physics are quantum impurity models, which describe how a local degree of freedom interacts with a continuum. Surprisingly, these models are often universal in that they can quantitatively describe many outwardly unrelated physical systems. Here we develop a double quantum dot-based experimental realization of the SU(4) Kondo model, which describes the maximally symmetric screening of a local four-fold degeneracy. As demonstrated through transport measurements and detailed numerical renormalization group calculations, our device affords exquisite control over orbital and spin physics. Because the two quantum dots are coupled only capacitively, we can achieve orbital state- or "pseudospin"-resolved bias spectroscopy, providing intimate access to the interplay of spin and orbital Kondo effects. This cannot be achieved in the few other systems realizing the SU(4) Kondo state.
description: Text and supplementary information. Text: 17 pages, 4 figures. Supplementary information: 24 pages, 9 figures
Characterization of local respiratory irritation and inflammation after acute exposure to biological and chemical substances in PCLS
Creators: name: Switalla, Simone
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: Precision-cut lung slices (PCLS)
subject: chronic obstructive lung disease (COPD)
subject: acute lung injury/ acute respiratory distress syndrome (ARDS)
subject: cytokine
subject: toxicity
subject: Präzisionslungenschnitte
subject: chronisch obstruktive Lungenerkrankung
subject: akute Lungenschädigung/ akutes Lungenversagen
subject: Zytokine
subject: Toxizität
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Bucculacus kaweckii Boczek 1961
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Bucculacus
Bucculacus kaweckii

description: Bucculacus kaweckii Boczek, 1961
 Bucculacus kaweckii Boczek, 1961a: 568–570.
 Bucculacus kaweckii; Amrine & Stasny, 1994: 146–147.
 Bucculacus kaweckii; Ripka, 2007: 89.
 Host. Quercus robur (Fagaceae).
 Relation to host. Vagrant.
 Distribution. Poland, Hungary.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 73, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Characterization of membrane adsorbers for contaminant removal
Creators: name: Leuthold, Martin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: High-throughput screening
subject: contaminant removal
subject: salt-tolerant membrane adsorber
subject: Hochdurchsatzscreening
subject: Kontaminantenentfernung
subject: salztolerante Membranadsorber
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
Characterization of natural and artificial mutants of human intestinal lactase phlorizin hydrolase
Creators: name: Behrendt, Marc
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2010
Subjects: subject: Lactase phlorizin hydrolase
subject: congenital lactase deficiency
subject: folding
subject: intramolecular organisation
subject: trafficking
subject: detergent resistant membranes
subject: Laktase-Phlorizin-Hydrolase
subject: congenitale Laktase-Defizienz
subject: Faltung
subject: intramolekulare Organisation
subject: Zielsteuerung
subject: Detergenz-resistente Membranen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Random time averaged diffusivities for Lévy walks
Creators: name: Froemberg, D.
name: Barkai, E.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate a Lévy-Walk alternating between velocities $\pm v_0$ with opposite sign. The sojourn time probability distribution at large times is a power law lacking its mean or second moment. The first case corresponds to a ballistic regime where the ensemble averaged mean squared displacement (MSD) at large times is $< x^2 > \propto t^2$, the latter to enhanced diffusion with $< x^2 > \propto t^ν$, $1
Romani bellum amabant - Zur Entwicklung des Römerbildes in den lateinischen Unterrichtswerken seit 1945
Creators: name: Kipf, Stefan
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Das in lateinischen Lehrwerken seit 1945 gezeichnete Bild Bild der Römer ist von großen Unterschieden geprägt. Das Spektrum reicht von einer unkritischen Idealisierung ‚römischen Mannestums’ bis hin zu einem eher multiperspektivischen Zugang. Im Artikel analysiert Stefan Kipf (Berlin) die verschiedenen Lehrbuchgenerationen bis zur Gegenwart; auf der Grundlage der historischen Analyse werden am Ende didaktische Folgerungen für die künftige Lehrbuchentwicklung formuliert.
description: Pegasus-Onlinezeitschrift, Bd. 10, Nr. 1: Pegasus-Onlinezeitschrift
Apodiptacus castaneae Liu & Kuang 1998
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Apodiptacus
Apodiptacus castaneae

description: Apodiptacus castaneae Liu & Kuang, 1998
 Apodiptacus castaneae Liu & Kuang, 1998 b: 25–26.
 Host. Castanea mollissima (Fagaceae).
 Relation to host. Vagrant.
 Distribution. China (Jiangsu).
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 67, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Characterization of the OXPHOS system in plant mitochondria
Creators: name: Peters, Katrin
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2011
Subjects: subject: OXPHOS system
subject: plant mitochondria
subject: respiratory chain complexes
subject: Pflanzliche Mitochondrien
subject: Atmungsketten-Komplexe
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Cerastium tomentosum
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 306. H. tomentosum L. (H. lanatum [L.] Vill.) Cat. 232. A. Tomentosum (L.) N. P. l. Ssp. tomentosum (L.) N. P. (ssp. lanatum [L.] Z. in Schinz et Keller, ssp. eu-lanatum [Z.]) Var. normale N.P. - l: Grammont (Briquet). - 2: Verbreitet von Fully (einschl. Höhen) bis Raron. - 3: Verbreitet von Martigny bis zum Simplon, in den Seitentälern an heissen Lagen ansteigend bis über 2000 m (ob Findelen bei Zermatt, etwa 2200 m [J.], unterhalb der Gletscheralp ob Saas-Fee,etwa 2050m [Hirschmann]). - 4: Binntal: Twingen (Bernoulli, Binz), ob Binn u. a. im Lauigraben (Lagger u. a.). Var. subcoronariifolium Z. - Ziemlich verbreitet mit dem Typus. Meist wohl nur eine Form leicht beschatteter Standorte. Var. dentifolium N.P. - 3: Visp (F.); Zmutt bei Zermatt (F.); Ganterbrücke am Sünplon (P.); unterhalb Berisal, 1300-1400m (Nägeli). 2. Ssp. phlomidifolium (A. -T.) N.P. - 2: Praghorn über Raron (Besse et Jaccard Lit. 1904, S. 152). - Bei ZAHN in Pflanzenr. und Syn. bleibt dieser Fundort unerwähnt.
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Cheiracus ornatus
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Cheiracus
Cheiracus ornatus

description: Cheiracus ornatus (Farkas, 1963)
 Rhyncaphytoptus ornatus Farkas, 1963: 260–261.
 Cheiracus ornatus; Amrine & Stasny, 1994: 162.
 Cheiracus ornatus; Soika & Łabanowski, 2002b: 78–81.
 Cheiracus ornatus; Ripka, 2007: 92.
 Host. Fagus sylvatica (Fagaceae).
 Relation to host. Vagrant.
 Distribution. Hungary, Poland.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 73, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Symbiotic stars and other Halpha emission line stars towards the Galactic Bulge
Creators: name: Miszalski, Brent
name: Mikołajewska, Joanna
name: Udalski, Andrzej
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Symbiotic stars are interacting binaries with the longest orbital periods and their multi-component structure makes them rich astrophysical laboratories. The accretion of a high mass loss rate red giant wind on to a white dwarf (WD) makes them promising Type Ia supernovae (SNe Ia) progenitors. Systematic surveys for new Galactic symbiotic stars are critical to identify new promising SNe Ia progenitors (e.g. RS Oph) and to better estimate the total population size to compare against SNe Ia rates. Central to the latter objective is building a complete census of symbiotic stars towards the Galactic Bulge. Here we report on the results of a systematic survey of Halpha emission line stars covering 35 deg^2. It is distinguished by the combination of deep optical spectroscopy and long-term lightcurves that improve the certainty of our classifications. A total of 20 bona-fide symbiotic stars are found (13 S-types, 6 D-types and 1 D'-type), 35% of which show the symbiotic specific Raman-scattered OVI emission bands, as well as 15 possible symbiotic stars that require further study (6 S-types and 9 D-types). Lightcurves show a diverse range of variability including stellar pulsations (semi-regular and Mira), orbital variations and slow changes due to dust. Orbital periods are determined for 5 S-types and pulsation periods for 3 D-types. The most significant D-type found is H1-45 and its carbon Mira with a pulsation period of 408.6 days, corresponding to a distance of ~6.2+-1.4 kpc and M_K=-8.06+-0.12 mag. If H1-45 belongs to the Galactic Bulge, then it would be the first bona-fide luminous Galactic Bulge carbon star. The lack of luminous carbon stars in the Bulge is a longstanding unsolved problem. A possible explanation for H1-45 may be that the carbon enhancement was accreted from the progenitor of the WD companion. A wide variety of unusual emission line stars were also identified. (abridged)
description: Accepted for publication in MNRAS (April 17) and now in press (advance access May 21). 37 pages, 40 figures, 15 tables. The full appendix may be obtained from MNRAS or http://www.saao.ac.za/~brent/SYONLINE.pdf
Die Brüder Browne, All Saints, Stamford, Lincolnshire
Creators: name: Lamp, Reinhard
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Die Reihe FLORILEGIUM findet ihre spannende Fortsetzung. Reinhard Lamp (Hamburg) stellt lateinische Inschriften vor, die auf Grabplatten englischer Wollhändler zu finden sind.
description: Pegasus-Onlinezeitschrift, Bd. 10, Nr. 1: Pegasus-Onlinezeitschrift
Characterization of reproductive and cytological features of midday flowers (Aizoaceae) for breeding purposes
Creators: name: Braun, Philipp
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Cytological analyses
subject: flower induction
subject: hybridization barriers
subject: Blühinduktion
subject: Hybridisierungsbarrieren
subject: zytologische Untersuchungen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
The Browne Brothers, All Saints, Stamford, Lincolnshire
Creators: name: Lamp, Reinhard
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Die Reihe FLORILEGIUM findet ihre spannende Fortsetzung. Reinhard Lamp (Hamburg) stellt lateinische Inschriften vor, die auf Grabplatten englischer Wollhändler zu finden sind.
description: Pegasus-Onlinezeitschrift, Bd. 10, Nr. 1: Pegasus-Onlinezeitschrift
Lateinischer Wortschatz als Brücke zur Mehrsprachigkeit? Eine Durchsicht des Aufgabenspektrums aktueller Lateinlehrwerke
Creators: name: Siebel, Katrin
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Der Artikel von Katrin Siebel (Berlin) versteht sich als ein Beitrag zur mehrsprachigen Wortschatzarbeit aus der Perspektive der Lateindidaktik. Nach theoretischen Vorüberlegungen, welche curriculare Vorgaben und entsprechende Bewertungskriterien miteinbeziehen, folgt eine Analyse der sprachenübergreifenden Übungen innerhalb der Lehrwerke. Dabei werden Übungstypologien herausgearbeitet und in Hinblick auf ihre Funktionalität betrachtet. Ein Resümee und Optimierungsvorschläge bilden den Abschluss des Artikels.
description: Pegasus-Onlinezeitschrift, Bd. 11, Nr. 1: Pegasus-Onlinezeitschrift
Characterization of crystalline silicon based on measurements of the photoluminescence emission
Creators: name: Herlufsen, Sandra
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Charge carrier lifetime
subject: photoluminescence
subject: silicon
subject: Ladungsträgerlebensdauer
subject: Photolumineszenz
subject: Silicium
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Konola hibernalis Keifer 1979
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Actinedida
Diptilomiopidae
Konola
Konola hibernalis

description: Konola hibernalis Keifer, 1979
 Konola hibernalis Keifer, 1979: 2.
 Konola hibernalis; Amrine & Stasny, 1994: 222.
 Konola hibernalis; Baker, et al., 1996: 274.
 Host. Quercus wislizenii (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 73, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Characterization of immune responses of carp (Cyprinus carpio L.) to the hemoflagellate Trypanoplasma borreli Laveran and Mesnil, 1901
Creators: name: Scharsack, Jörn Peter
Publisher: name: Hannover : Universität
Year: 2001
Subjects: subject: Carp
subject: hemoflagellate
subject: immune response
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Der „Blick von außen auf das Andere“: Entdecker und Eroberer über fremde Menschen und ihre Kulturen – Möglichkeiten und Schwerpunkt(e) eines Lektüreganges (nach dem Lehrbuch) in der Mittelstufe
Creators: name: Schmude, Michael P.
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Michael Schmude widmet sich der oft vernachlässigten Unterrichtsphase der Anfangslektüre und schlägt verschiedene mögliche Lektüregänge vor. Ausführlich präsentiert er eine Unterrichtsreihe zum Thema der Perspektive von Entdeckern und Eroberern auf die indigenen Kulturen, in der einerseits Caesars Bellum Gallicum, andererseits die frühneuzeitlichen Berichte zur Eroberung Amerikas von Amerigo Vespucci, Juan Ginés de Sepúlveda und Bartolomé de Las Casas gegenübergestellt werden.

Anhang 1-2
description: Pegasus-Onlinezeitschrift, Bd. 12, Nr. 1: Pegasus-Onlinezeitschrift
Rhinophytoptus massalongoianus
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhinophytoptus
Rhinophytoptus massalongoianus

description: Rhinophytoptus massalongoianus (Nalepa, 1893)
 Rhinophytoptus massalongoianus; Amrine & Stasny, 1994: 271.
 Rhynchaphytoptus massalongianus; Petanović & Stanković, 1999: 65.
 Rhinophytoptus massalongoianus; Łabanowski & Sokia, 2002: 52.
 Rhinophytoptus massalongoianus; Sokia & Łabanowski, 2002a: 63.
 Rhinophytoptus massalongoianus; Ripka, 2007: 108.
 Host. Quercus pubescens, Q. cerris, Q. petraea, Q. robur, Q. sessiliflora (Fagaceae).
 Relation to host. Irregular, pale spots on leaves.
 Distribution. Italy, Hungary, Poland, Serbia.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on pages 73-74, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Die deutsch-lateinische Übersetzung im Schulunterricht. Eine bildungshistorische Untersuchung
Creators: name: Liebsch, Ann-Catherine
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Der Artikel „Die deutsch-lateinische Übersetzung im Schulunterricht. Eine bildungshistorische Untersuchung“ von Ann-Catherine Liebsch behandelt die Frage, wie sich die Übersetzung vom Deutschen ins Lateinische (Hinübersetzung) von Zielleistung im Schulunterricht zu einem Randphänomen entwickelt hat. Die auf das neuhumanistische Gymnasium in Preußen konzentrierte Untersuchung wertet vielfältige Quellen aus, v. a. Lehrpläne und Prüfungsordnungen, die vor ihrem historisch-politischen Kontext analysiert werden.
description: Pegasus-Onlinezeitschrift, Bd. 13, Nr.1/2: Pegasus-Onlinezeitschrift
Bounds on the state vector growth rate in stochastic dynamical systems
Creators: name: Krivulin, Nikolai K.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: 93E25 (Primary) 15A80, 93C65, 90B15, 37H15 (Secondary)

description: A stochastic dynamical system represented through a linear vector equation in idempotent algebra is considered. We propose simple bounds on the mean growth rate of the system state vector, and give an analysis of absolute error of a bound. As an illustration, numerical results of evaluation of the bounds for a test system are also presented.
description: The 5th St. Petersburg Workshop on Simulation, St. Petersburg, Russia, June 26-July 2, 2005
Coherence and pattern formation in coupled logistic-map lattices
Creators: name: Janowicz, Maciej
name: Orłowski, Arkadiusz
Publisher: name: arXiv
Year: 2013
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Three quantitative measures of the spatiotemporal behavior of the coupled map lattices: reduced density matrix, reduced wave function, and an analog of particle number, have been introduced. They provide a quantitative meaning to the concept of coherence which in the context of complex systems have been used rather intuitively. Their behavior suggests that the logistic coupled-map lattices approach the states which resemble the condensed states of systems of Bose particles. In addition, pattern formation in two-dimensional coupled map lattices based on the logistic mapping has been investigated with respect to the non-linear parameter, the diffusion constant and initial as well as boundary conditions.
Rhyncaphytoptus albus Keifer 1959
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus albus

description: Rhyncaphytoptus albus Keifer, 1959
 Rhyncaphytoptus albus Keifer, 1959c: 16–17.
 Rhyncaphytoptus albus; Amrine & Stasny, 1994: 274.
 Rhyncaphytoptus albus; Baker, et al., 1996: 256.
 Host. Quercus alba (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 74, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Cl-rich amphiboles as record for hydrothermal processes at very high temperatures in the deep oceanic crust : brine/rock interaction experiments and investigation on natural rocks
Creators: name: Currin Sala, Adriana M.
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2018
Subjects: subject: Cl-bearing amphibole
subject: high-temperature hydrothermal activity
subject: lower oceanic crust
subject: Samail Ophiolite
subject: phase separation
subject: fluid-rock interaction
subject: magmatic-hydrothermal transition
subject: experimental petrology
subject: Cl-haltige Amphibole
subject: Hochtemperatur Hydrothermale Aktivität
subject: Untere Ozeanische Kruste
subject: Samail Ophiolit
subject: Phasentrennung
subject: Fluid-Gesteins-Wechselwirkungen
subject: Magmatischer- hydrothermaler Übergangsbereich
subject: Experimentelle Petrologie
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: Interactions between rock and high temperature seawater-derived fluids are recorded in hydrothermal veins and dykelets that cross-cut layered olivine gabbros deep in the plutonic section of the Samail Ophiolite, Wadi Wariyah, Sultanate of Oman. Here we present a study – using petrographic, microanalytical, isotopic, and structural methods – of amphiboles found in the aforementioned veins and dykelets, which show a conspicuous compositional variation from high-Ti magnesiohastingsite and pargasite via magnesiohornblende and edenite, to Cl-rich ferropargasite and hastingsite (with up to 5.4 wt% Cl) and actinolite. These minerals record a wide range of formation conditions from magmatic to hydrothermal at varying water/rock ratios and salinities, while the formation of super Cl-rich amphibole suggests the occurrence of phase separation, and 87Sr/86Sr and stable δ18O isotope analyses confirm the influence of a hydrothermal fluid in a rock-dominated environment. A parallel experimental study was conducted at hydrothermal (500 – 750 °C) and magmatic (900 °C) conditions at pressures of 2 kbar, and fO2 close to NNO, with an amphibole-containing natural olivine gabbro and saline fluid (6, 20 and 50 wt% NaCl). Results in subsolidus experiments demonstrate the growth of newly-formed amphibole with a wide range of compositions comparable to those seen in the lithologies sampled in Wadi Wariyah, and Cl-bearing amphiboles with Cl up to 0.47 wt. %. Our findings highlight the heterogeneities in fluid infiltration and Cl activity that account for the complexity of hydrothermal fluid/rock interactions in deep oceanic geological systems, providing insight into the subsolidus evolution of gabbro-hosted amphibole-rich veins in the presence of a seawater-derived fluid.
Astérix chez les Pictes / Asterix bei den Pikten. Bemerkungen zum neuen Asterix von Jean-Yves Ferri und Didier Conrad
Creators: name: Ax, Wolfram
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Nach einer langen Pause ist der Gallier Asterix endlich wieder zurück. Wolfram Ax beschreibt in seinem Artikel, wie es dem neuen Team, bestehend aus Jean-Yves Ferri und Didier Conrad, gelungen ist, ein zwischen alten Motiven und neuen Methoden harmonierendes neues Heft zu gestalten. Neben der beispielreichen Analyse des französischen Originals beschäftigt sich Ax auch mit der (in seinen Augen) fehlerhaften deutschen Übersetzung und führt anhand von detaillierten Beispielen einige dieser Fehler auf. Wolfram Ax schafft ein vollständiges Bild des neuen Asterix-Heftes und weckt die Neugier des Lesers.
description: Pegasus-Onlinezeitschrift, Bd. 14, Nr. 1: Pegasus-Onlinezeitschrift
Charge transport through biphenyl and ferrocene based on single-molecule junctions
Creators: name: Kanthasamy, Karthiga
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Mechanically controllable break junction
subject: gold electrode
subject: ferrocene
subject: biphenyl
subject: density functional theory and quantum transport
subject: Mechanisch kontrollierte Bruchkontakte
subject: Goldelektrode
subject: Ferrocen
subject: Dichtefunktionaltheorie und Quantentransport
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Rhyncaphytoptus berryessae Keifer 1976
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus berryessae

description: Rhyncaphytoptus berryessae Keifer, 1976
 Rhyncaphytoptus berryessae Keifer, 1976: 23–24.
 Rhyncaphytoptus berryessae; Amrine & Stasny, 1994: 275.
 Rhyncaphytoptus berryessae; Baker, et al., 1996: 258.
 Host. Quercus sp. Q. dumosa (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 74, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Atomic scale friction of molecular adsorbates during diffusion
Creators: name: Lechner, B. A. J.
name: de Wijn, A. S.
name: Hedgeland, H.
name: Jardine, A. P.
name: Hinch, B. J.
name: Allison, W.
name: Ellis, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Experimental observations suggest that molecular adsorbates exhibit a larger friction coefficient than atomic species of comparable mass, yet the origin of this increased friction is not well understood. We present a study of the microscopic origins of friction experienced by molecular adsorbates during surface diffusion. Helium spin-echo measurements of a range of five-membered aromatic molecules, cyclopentadienyl (Cp), pyrrole and thiophene, on a copper(111) surface are compared with molecular dynamics simulations of the respective systems. The adsorbates have different chemical interactions with the surface and differ in bonding geometry, yet the measurements show that the friction is greater than 2 ps$^{-1}$ for all these molecules. We demonstrate that the internal and external degrees of freedom of these adsorbate species are a key factor in the underlying microscopic processes and identify the rotation modes as the ones contributing most to the total measured friction coefficient.
Pedicularis kerneri Neilr.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: 385. H. Kerneri Ausserdorfer ex Neilr. em. Z. humile-bifidum. A. Balbisianum (A. -T. et Briq.) Z. l. Ssp. Balbisianum (A. -T. et Briq.) Z. (ssp. eu-Balbisianum Z.) - l: Lovenex und Haut de Tanay mehrfach (Bernoulli, Briquet, J. u. a.); Berroix ob Champery (Besse); Gorges du Daillay bei Salvan (nach Z.); Emaney und Dent d'Etava ob Salvan,bis 2380m (desgl.). - 2: Saille und Lousine ob Fully (Besse); Grand Pre ob Saillon (P.); Schlucht hinter Ardon (Wolf); Ayent (Besse); Vatseret und Mondralesse ob Lens (idem); Tal der Ertenze (Gave); Gemmi, 2100 m (J., Wilczek); Gredetschtal (nach Z.). - 3: Mauvoisin und Mazeria im Val de Bagnes (Favrat). - 4: Nacken ob Binn (P.). 4. Ssp. subcuspidatum Z. (vgl. Zahn Lit. 1924, S. 70) - l: La Tour ob Susanfe, 2200 m (Coquoz). 8. Ssp. pseudohumile Z. (H. Cotteti Godet ssp. pseudo-humile Z.) - l: Westlich von Tanay (Bernoulli); St-Maurice (Besse). - 2: Ayent (Besse). - 3: Mauvoisin (Bernoulli). - 4: Binntal (Bernoulli).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Classification results on skew Schur Q-functions
Creators: name: Schure, Christopher
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Q-multiplicity-free
subject: Q-homogeneous
subject: skew Schur Q-function
subject: Q-multiplizitätenfrei
subject: Q-homogen
subject: schiefe Schur Q-Funktion
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: [no abstract]
Florilegium: Vier Grabbildnisse Bürgerlicher
Creators: name: Lamp, Reinhard
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Reinhard Lamp führt seine Reihe über mittellateinische Grabplatten und -bildnisse fort. In dienem Aufsatz widmet er sich im Besonderen der Beschreubung und Interpretation der Bildnisse von John Asger, Richard Byll, Richard Bartlot und Hugh Bostok. Neben biografischen Informationen werden Kommentare sowie prosodische und sprachliche Stiluntersuchungen der Inschriften gegeben. Der Autor versteht es, ein wenig bekanntes Gebiet mit großer Detailkenntnis ansprechend darzustellen.
description: Pegasus-Onlinezeitschrift, Bd. 14, Nr. 1: Pegasus-Onlinezeitschrift
Climate change and host plant resistance : effects of high temperature and drought on rice R genes' mediated resistance to bacterial blight
Creators: name: Dossa, Codjo Sylvestre Gerbert
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2016
Subjects: subject: Rice
subject: Xoo
subject: climate change
subject: Reis
subject: Klimawandel
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin

description: [no abstract]
Lehrbuchgermanen: the representation of the Germani in Latin textbooks in Germany from the late nineteenth to the mid-twentieth century
Creators: name: McNamara, J. D.
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: J. D. McNamara beschreibt in seinem Artikel die Entwicklung der Darstellung der Germanen in den lateinischen Lehrbüchern in Deutschland vom späten 19. Jh. bis in die Mitte des 20. Jh. hinein. Gleichzeitig versucht er die sich wandelnde Bedeutung des Lateinunterrichts in den Schulen zu erklären. Dabei führt er zahlreiche Beispiele aus verschiedenen Textbüchern dieser Zeit an.
description: Pegasus-Onlinezeitschrift, Bd. 15, Nr. 1: Pegasus-Onlinezeitschrift
Wenn zwei sich streiten, freut sich dann der Dritte? Bildungssprache vs. Schulsprache – eine terminologische Untersuchung
Creators: name: Beyer, Andrea
Publisher: name: Pegasus-Onlinezeitschrift
Year: 2017

description: Andrea Beyer zeichnet in ihrem Aufsatz die Entwicklung der Termini Bildungssprache und Schulsprache im angloamerikanischen und deutschen Sprachraum anhand von Definitionen nach und plädiert schließlich für die Verwendung des Begriffs Standardsprache im Kontext der Bildungswissenschaften.
description: Pegasus-Onlinezeitschrift, Bd. 15, Nr. 2: Pegasus-Onlinezeitschrift
Hyperbolicity of Physical Theories with Application to General Relativity
Creators: name: Hilditch, David
name: Richter, Ronny
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider gauge theories from the free evolution point of view, in which initial data satisfying constraints of a theory are given. Because the constraints are compatible with the field equations they remain so. We study a model constrained Hamiltonian theory and identify a particular structure in the equations of motion which we call the standard gauge freedom. The pure gauge subsystem of this model theory is identified and the manner in which the gauge variables couple to the field equations is presented. We demonstrate that the set of gauge choices that can be coupled to the field equations to obtain a, properly defined, wave-like formulation is exactly the set of wave-like pure gauges. Consequently we analyze a parametrized family of formulations of general relativity. The generalization of the harmonic gauge formulation to a five parameter family of gauge conditions is obtained.
Rhyncaphytoptus castaneae Farkas 1960
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus castaneae

description: Rhyncaphytoptus castaneae Farkas, 1960
 Rhyncaphytoptus castaneae Farkas, 1960: 333–334.
 Rhyncaphytoptus castaneae; Amrine & Stasny, 1994: 275.
 Rhyncaphytoptus castaneae; Ripka, 2007: 108.
 Host. Castanea sativa (Fagaceae).
 Relation to host. Rust.
 Distribution. Hungary.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 74, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
Clustering information entities based on statistical methods
Creators: name: Fisichella, Marco
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Information retrieval
subject: clustering
subject: statistical methods
subject: Clusteranalyse
subject: statistische Methoden
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: [no abstract]
Rhyncaphytoptus castanifoliae Keifer 1940
Creators: name: XUE, XIAO-FENG
name: WANG, ZHEN
name: SONG, ZI-WEI
name: HONG, XIAO-YUE
Publisher: name: Zenodo
Year: 2009
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Diptilomiopidae
Rhyncaphytoptus
Rhyncaphytoptus castanifoliae

description: Rhyncaphytoptus castanifoliae Keifer, 1940
 Rhyncaphytoptus castanifoliae Keifer, 1940: 167.
 Rhyncaphytoptus castanifoliae; Amrine & Stasny, 1994: 275.
 Rhyncaphytoptus castanifoliae; Baker, et al., 1996: 94.
 Host. Castanea dentata (Fagaceae).
 Relation to host. Vagrant.
 Distribution. USA.
description: Published as part of XUE, XIAO-FENG, WANG, ZHEN, SONG, ZI-WEI & HONG, XIAO-YUE, 2009, Eriophyoid mites on Fagaceae with descriptions of seven new genera and eleven new species (Acari: Eriophyoidea), pp. 1-95 in Zootaxa 2253 (1) on page 74, DOI: 10.11646/zootaxa.2253.1.1, http://zenodo.org/record/5496215
The changing nebula around the hot R Coronae Borealis star DY Centauri
Creators: name: Rao, N. Kameswara
name: Lambert, D. L.
name: Garcia-Hernandez, D. A.
name: Manchado, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Among the distinguishing characteristics of the remarkable hot R Coronae Borealis star DY Cen, which was recently found to be a spectroscopic binary, is the presence of nebular forbidden lines in its optical spectrum. A compilation of photometry from 1970 to the present suggests that the star has evolved to higher effective temperatures. Comparison of spectra from 2010 with earlier spectra show that between 2003 and 2010, the 6717 and 6730 A emission lines of [S II] underwent a dramatic change in their fluxes suggesting an increase in the nebula's electron density of 290 cm-3 to 3140 cm-3 from 1989 to 2010 while the stellar temperature increased from 19500 K to 25000 K. The nebular radius is about 0.02 pc, 60000 times bigger than the semimajor axis of DY Cen binary system. Rapid changes of stellar temperature and its response by the nebula demonstrate stellar evolution in action.
description: Accepted for publication in MNRAS (9 pages, 6 figures and 3 tables)
Cold polar molecules in bilayers
Creators: name: Pikovski, Alexander
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2012
Subjects: subject: Ultracold gases
subject: dipole interaction
subject: two-dimensional scattering
subject: Ultrakalte Gase
subject: Dipol-Wechselwirkung
subject: zweidimensionale Streuung
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Characterizing protein compartmentalization of plant energy metabolism
Creators: name: Behrens, Christof
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Proteomics
subject: plant organelles
subject: energy metabolism
subject: Proteomik
subject: Pflanzenorganellen
subject: Energiestoffwechsel
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
VLBI astrometry of PSR J2222-0137: a pulsar distance measured to 0.4% accuracy
Creators: name: Deller, A. T.
name: Boyles, J.
name: Lorimer, D. R.
name: Kaspi, V. M.
name: McLaughlin, M. A.
name: Ransom, S.
name: Stairs, I. H.
name: Stovall, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The binary pulsar J2222-0137 is an enigmatic system containing a partially recycled millisecond pulsar and a companion of unknown nature. Whilst the low eccentricity of the system favors a white dwarf companion, an unusual double neutron star system is also a possibility, and optical observations will be able to distinguish between these possibilities. In order to allow the absolute luminosity (or upper limit) of the companion object to be properly calibrated, we undertook astrometric observations with the Very Long Baseline Array to constrain the system distance via a measurement of annual geometric parallax. With these observations, we measure the parallax of the J2222-0137 system to be 3.742 +0.013 -0.016 milliarcseconds, yielding a distance of 267.3 +1.2 -0.9 pc, and measure the transverse velocity to be 57.1 +0.3 -0.2 km/s. Fixing these parameters in the pulsar timing model made it possible to obtain a measurement of Shapiro delay and hence the system inclination, which shows that the system is nearly edge-on (sin i = 0.9985 +/- 0.0005). Furthermore, we were able to detect the orbital motion of J2222-0137 in our VLBI observations and measure the longitude of ascending node. The VLBI astrometry yields the most accurate distance obtained for a radio pulsar to date, and is furthermore the most accurate parallax for any radio source obtained at "low" radio frequencies (below ~5 GHz, where the ionosphere dominates the error budget). Using the astrometric results, we show the companion to J2222-0137 will be easily detectable in deep optical observations if it is a white dwarf. Finally, we discuss the implications of this measurement for future ultra-high-precision astrometry, in particular in support of pulsar timing arrays.
description: 22 pages, 7 figures, accepted for publication in ApJ
Archäometallurgische Untersuchungen zur Metalleinlegetechnik einiger Auvernierschwerter
Creators: name: Berger, Daniel
name: Pernicka, Ernst
Publisher: name: Verlag des Römisch-Germanischen Zentralmuseums Mainz
Year: 2017

description: Der Beitrag behandelt drei Vollgriffschwerter vom Typ Auvernier aus archäometallurgischer und herstellungstechnischer Sicht. Gegenüber anderen Exemplaren dieser Schwertgruppe der jüngeren Urnenfelderzeit (Ha B3) besitzen alle drei Schwerter anstelle organischer Einlagen auf den Breitseiten des Bronzegriffes metallische Einsätze. Diese bestehen den chemischen Analysen zufolge bei zwei Schwertern aus Auvernier und Nächstenbach aus reinem Kupfer, das man in mitgegossene Vertiefungen einpasste. Bei einem dritten Stück aus Dessau-Kühnau besteht die Einlage hingegen aus Zinnbronze. Allen drei Objekten ist gemein, dass die Metalleinsätze allein durch Niete fixiert werden, sodass es sich im Gegensatz zu den Eisenstreifen auf der Kopfplatte des Dessauer Schwertes nicht um echte Tauschierungen handelt. Vielmehr wird hierin eine Art Niet-Tauschierung fassbar.
description: Restaurierung und Archäologie, Bd. 2 (2009): Restaurierung und Archäologie