cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental realisation of quantum illumination
Creators: name: Lopaeva, E. D.
name: Berchera, I. Ruo
name: Degiovanni, I. P.
name: Olivares, S.
name: Brida, G.
name: Genovese, M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present the first experimental realisation of the quantum illumination protocol proposed in Ref.s [S. Lloyd, Science 321, 1463 (2008); S. Tan et al., Phys. Rev. Lett. 101, 253601 (2008)], achieved in a simple feasible experimental scheme based on photon-number correlations. A main achievement of our result is the demonstration of a strong robustness of the quantum protocol to noise and losses, that challenges some widespread wisdom about quantum technologies.
description: PRL in press
Understanding and exploiting fungal PKS-NRPS biosynthesis in Pyricularia and Magnaporthe species
Creators: name: Hantke, Verena
Publisher: name: Hannover : Institutionelles Repositorium der Leibniz Universität Hannover
Year: 2019
Subjects: subject: natural products
subject: biosynthesis
subject: cytochalasans
subject: Naturstoffe
subject: Biosynthese
subject: PKS-NRPS
subject: Cytochalasane
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The fungus Pyricularia oryzae is a major pathogen of rice (Oryzae sativa) that causes substantial loss of yields every year. Remarkably, certain rice strains carrying the Pi33 gene are resistant to strains of P. oryzae encoding a PKS-NRPS called the avirulence conferring enzyme1 (ACE1). By heterologous expression studies in Aspergillus oryzae, more insights into the early biosynthetic steps of this ACE1 metabolite were obtained. O-Methyl-L-tyrosine 71 was identified as the preferred substrate for the adenylation domain of the ACE1 NRPS, indicating that the OME1 gene (O-methyltransferase) belongs to the ACE1 cluster. However, even after all biosynthetic genes of the ACE1 cluster were co-expressed; the produced compound was 88 - a shunt intermediate. In-vitro enzyme assays confirmed that reduction of the aldehyde 90 to the alcohol 88 is catalysed by a native A. oryzae enzyme at an early biosynthetic step; thus stalling the biosynthesis. Ectopic expression of BC1 (transcription factor from the ACE1 BGC) in P. oryzae did not lead to the production of ACE1-related compounds. However, the compound hinnulin A 105 was formed, which belongs to the class of DHN-melanins. A putative partial BGC potentially involved in the biosynthesis of 105 was validated by RT-PCR and a possible biosynthetic pathway was proposed. Another cytochalasan BGC was previously demonstrated to be responsible for the production of pyrichalasin H 50 in Magnaporthe grisea and now revealed to be homologous to the ACE1 BGC. Thus, the 50 BGC was used as model system to elucidate the function of two potential key enzymes in cytochalasan biosynthesis: an αβ-hydrolase (HYD) and a putative Diels-Alderase (pDA). Targeted gene deletion experiments in M. grisea revealed that the HYD PyiE is involved in early steps during the biosynthesis of 50, but its exact role remained elusive. The pDA PyiF was shown to be involved in the intramolecular [4+2] cycloaddition forming 72. Complementation studies with ORF3 from the ACE1 BGC indicated a similar catalytic function of both enzymes. By recombinant gene expression studies in E. coli soluble ORFZ (HYD) and ORF3 (pDA) protein was obtained. In-vitro assays are underway to gain further insights into their biosynthetic role.
Ultrashort pulse thulium-doped fiber lasers and amplifiers
Creators: name: Haxsen, Frithjof
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Ultrashort pulse
subject: thulium
subject: fiber
subject: Ultrakurzpuls
subject: Faser
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
On the Shape Dependence of the Tangential Casimir Force
Creators: name: Voronina, Yuliya
name: Silaev, Petr
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The normal and tangential Casimir force for the rack gear is calculated numerically in the case of ideal boundary conditions for the electromagnetic field - perfect reflection on the boundaries. The resulting tangential force appears to be essentially shape dependent. Relatively small shape variations lead to the essential changes in tangential force, whereas normal force remains almost unchanged.
description: 11 pages, 3 figures
Veronica triphyllos L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: V. triphyllos L. Cat. 273 und 429. Bis etwa 1620 m. l: Collonges (Gams). - 3:Riddes (J.); Zermatt, etwa1620m (J.); Staldenried (A. Keller); Eisten (idem). - 4: Brig-Termen (B. B. T. Z.).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Mapping spin coherence of a single rare-earth ion in a crystal onto a single photon polarization state
Creators: name: Kolesov, Roman
name: Xia, Kangwei
name: Reuter, Rolf
name: Stoehr, Rainer
name: Inal, Tugrul
name: Siyushev, Petr
name: Wrachtrup, Joerg
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report on optical detection of a single photostable Ce3+ ion in an yttrium aluminium garnet (YAG) crystal and on its magneto-optical properties at room temperature. The quantum state of an electron spin of the emitting level of cerium ion in YAG can be initialized by circularly polarized laser pulse. Furthermore, its quantum state can be read out by observing temporal behaviour of circularly polarized fluorescence of the ion. This implies direct mapping of the spin quantum state of Ce3+ ion onto the polarization state of the emitted photon and represents one-way quantum interface between a single spin and a single photon.
Time-Dependent Dielectric Breakdown on Subnanometer EOT nMOS FinFETs
Creators: name: Feijoo, Pedro C.
name: Kauerauf, Thomas
name: Toledano-Luque, María
name: Togo, Mitsuhiro
name: Andrés, Enrique San
name: Groeseneken, Guido
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: In this paper, the time-dependent dielectric breakdown (TDDB) in sub-1-nm equivalent oxide thickness (EOT) n-type bulk FinFETs is studied. The gate stacks consist of an IMEC clean interfacial layer, atomic layer deposition HfO2 high-k and TiN metal electrode. For the 0.8-nm EOT FinFETs, it is found that TDDB lifetime is consistent with results of planar devices for areas around 1e-8 cm2, implying that the FinFET architecture does not seem to introduce new failure mechanisms. However, for devices with smaller area, the extrapolated voltage at a ten-year lifetime for soft breakdown (SBD) does not meet the specifications, and as a consequence, the SBD path wear-out will have to be included in the final extrapolation. Furthermore, it is shown that for EOTs smaller than 0.8 nm, the TDDB reliability on n-type FinFETs is challenged by the high leakage currents.
description: 15 pages, 7 figures
Gadolinium scandate by high-pressure sputtering for future generations of high-k dielectrics
Creators: name: Feijoo, Pedro Carlos
name: Pampillón, María Ángela
name: Andrés, Enrique San
name: Fierro, José Luis G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Gd-rich gadolinium scandate (Gd2-xScxO3) was deposited by high-pressure sputtering on (100) silicon by alternating the deposition of lower than 0.5 nm thick films of its binary components: Sc2O3 and Gd2O3. The formation of the ternary oxide was observed after the thermal treatments, with a high increase in the effective permittivity of the dielectric (up to 21). The silicon diffuses into the Gd2-xScxO3 films, which show an amorphous character. After the annealing no interfacial silicon oxide is present. CHF-VG curves indicated low hysteresis (55 mV) and a density of interfacial defects of 6e11 eV-1 cm-2.
description: 25 pages, 9 figures, 2 tables
His left foot: A new investigation of the oriental Bronze Age figurine from Šernai (Western Lithuania) and the question of its authenticity
Creators: name: Čivilytė, Agnė
name: Duberow, Elka
name: Pernicka, Ernst
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: ...
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Hot electron transport in a strongly correlated transition metal oxide
Creators: name: Rana, Kumari Gaurav
name: Yajima, Takeaki
name: Parui, Subir
name: Kemper, Alexander F.
name: Devereaux, Thomas P.
name: Hikita, Yasuyuki
name: Hwang, Harold Y.
name: Banerjee, Tamalika
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Oxide heterointerfaces are ideal for investigating strong correlation effects to electron transport, relevant for oxide-electronics. Using hot-electrons, we probe electron transport perpendicular to the La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ (LSMO)- Nb-doped SrTiO$_3$ (Nb:STO) interface and find the characteristic hot-electron attenuation length in LSMO to be 1.48 $\pm$ 0.10 unit cells (u.c.) at -1.9 V, increasing to 2.02 $\pm$ 0.16 u.c. at -1.3 V at room temperature. Theoretical analysis of this energy dispersion reveals the dominance of electron-electron and polaron scattering. Direct visualization of the local electron transport shows different transmission at the terraces and at the step-edges.
description: 15 pages, 4 figures
Sibylle Kästner, Jagende Sammlerinnen und sammelnde Jägerinnen. Wie australische Aborigines-Frauen Tiere erbeuten
Creators: name: Antl-Weiser, Walpurga
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Sibylle Kästner, Jagende Sammlerinnen und sammelnde Jägerinnen. Wie australische Aborigines-Frauen Tiere erbeuten. Ethnologie Band 42. Lit Dr. W. Hopf, Berlin 2012. € 59,90. ISBN 987-3-643-10903-3. 599 Seiten, 34 Abbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Two-phase thin film equations with insoluble surfactant
Creators: name: Brüll, Gabriele
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Thin film equations
subject: surfactant
subject: degenerate parabolic equations
subject: Dünnfilmgleichungen
subject: Tenside
subject: degenerierte parabolische Gleichungen
subject: Dewey Decimal Classification::500 | Naturwissenschaften::510 | Mathematik

description: [no abstract]
Klaus Brandt (Hrsg.), Hollingstedt an der Treene. Ein Flusshafen der Wikingerzeit und des Mittelalters für den Transitverkehr zwischen Nord- und Ostsee
Creators: name: Ellmers, Detlev
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Klaus Brandt (Hrsg.), Hollingstedt an der Treene. Ein Flusshafen der Wikingerzeit und des Mittelalters für den Transitverkehr zwischen Nord- und Ostsee. Schriften des Archäologischen Landesmuseums Band 10. Wachholtz, Neumünster 2012. € 80,—. ISBN 978-3-529-01811-4. 416 Seiten, zahlreiche Abbildungen und Tafeln.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Ludvik Belcredi, O založení, živote a zániku středověké vsi. Archeologický výzkum zániklé středověké vsi Bystřece 1975—2005
Creators: name: Krzenck, Thomas
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Ludvik Belcredi, O založení, živote a zániku středověké vsi. Archeologický výzkum zániklé středověké vsi Bystřece 1975—2005. (Über Gründung, Leben und Untergang eines mittelalterlichen Dorfes. Die archäologische Erforschung der Wüstung Bystřec 1975—2005). Moravske zemske muzeum Brno 2013. Kc 650,—. 482 Seiten, s/w- und Farbabbildungen.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
Ultra-stable laser based on a cryogenic single-crystal silicon cavity
Creators: name: Hagemann, Christian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Laser frequency stabilization
subject: optical reference cavity
subject: thermal noise
subject: optical clocks
subject: Frequenzstabilisierung
subject: optischer Referenzresonator
subject: thermisches Rauschen
subject: optische Uhren
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Local stellar kinematics from RAVE data: IV. Solar neighbourhood age-metallicity relation
Creators: name: Duran, S.
name: Ak, S.
name: Bilir, S.
name: Karaali, S.
name: Ak, T.
name: Bostanci, Z. F.
name: Coskunoglu, B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigated the age-metallicity relation using a sample of 5691 F and G type dwarfs from RAVE DR3 by applying several constraints: i) We selected stars with surface gravities log g < 3.8 and effective temperatures in the 5310
description: 25 pages, including 21 figures and 4 tables, accepted for publication in PASA
Uncertainty of the coefficient of band-to-band absorption of crystalline silicon
Creators: name: Schinke, Carsten Jonathan
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2015
Subjects: subject: Crystalline silicon
subject: absorption coefficient
subject: measurement uncertainty analysis
subject: Kristallines Silizium
subject: Absorptionskoeffizient
subject: Messunsicherheitsanalyse
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Bohr's absolute convergence problem for $\mathcal{H}_p$-Dirichlet series in Banach spaces
Creators: name: Carando, Daniel
name: Defant, Andreas
name: Sevilla-Peris, Pablo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 30B50, 32A05, 46G20

description: The Bohr-Bohnenblust-Hille Theorem states that the width of the strip in the complex plane on which an ordinary Dirichlet series $\sum_n a_n n^{-s}$ converges uniformly but not absolutely is less than or equal to 1/2, and this estimate is optimal. Equivalently, the supremum of the absolute convergence abscissas of all Dirichlet series in the Hardy space $\mathcal{H}_\infty$ equals 1/2. By a surprising fact of Bayart the same result holds true if $\mathcal{H}_\infty$ is replaced by any Hardy space $\mathcal{H}_p$, $1 \le p < \infty$, of Dirichlet series. For Dirichlet series with coefficients in a Banach space $X$ the maximal width of Bohr's strips depend on the geometry of $X$; Defant, García, Maestre and Pérez-García proved that such maximal width equal $1- 1/\ct(X)$, where $\ct(X)$ denotes the maximal cotype of $X$. Equivalently, the supremum over the absolute convergence abscissas of all Dirichlet series in the vector-valued Hardy space $\mathcal{H}_\infty(X)$ equals $1- 1/\ct(X)$. In this article we show that this result remains true if $\mathcal{H}_\infty(X)$ is replaced by the larger class $\mathcal{H}_p(X)$, $1 \le p < \infty$.
Electrical characterization of gadolinium oxide deposited by high pressure sputtering with in situ plasma oxidation
Creators: name: Pampillón, María Ángela
name: Feijoo, Pedro Carlos
name: Andrés, Enrique San
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: In this work, we characterized gadolinium oxide films deposited on silicon by high pressure sputtering with a two-step process: first, we sputtered metallic gadolinium in an argon atmosphere and then, we performed an in-situ plasma oxidation of the metallic layer previously deposited. By means of high resolution transmission electron microscopy, we can detect the oxidation degree of the metallic film. Under optimized deposition conditions, fully oxidized Gd2O3 films are obtained. In addition, the capacitance and conductance as a function of gate voltage of Pt gated metal-insulator-semiconductor capacitors confirm stable dielectric behavior of the fully oxidized films. The devices show low gate leakage currents (1e5 A/cm2 at 1 V for 2.2 nm of equivalent oxide thickness), low interface trap density and an almost negligible hysteresis and frequency dispersion.
description: 16 pages, 8 figures
Design of a Smart Embedded Uninterrupted Power Supply System for Personal Computers
Creators: name: Zungeru, A. M.
name: Garba, A. J.
name: Kolo, J. G.
name: Ahmed, M. S.
name: Olumide, I.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Digital equipment such as computers, telecommunication systems and instruments use microprocessors that operate at high frequencies allowing them to carry out millions or even billions of operations per second. A disturbance in the electrical supply lasting just a few milliseconds can affect thousands or millions of basic operations. The result may be malfunctioning and loss of data with dangerous or costly consequences (e.g. loss of production). That is why many loads, called sensitive or critical loads, require a supply that is protected. Many manufacturers of sensitive equipment specify very strict tolerances, much stricter than those in the distribution system for the supply of their equipment, one example being Computer Business Equipment Manufacturers Association for computer equipment against distribution system disturbances. The design of this uninterrupted power supply (UPS) for personal computer (PC) is necessitated due to a need for enhanced portability in the design of personal computer desktop workstations. Apart from its original functionality as a backup source of power, this design incorporates the unit within the system unit casing, thereby reducing the number of system components available. Also, the embedding of this unit removes the untidiness of connecting wires and makes the whole computer act like a laptop. Not to be left out is the choice of a microcontroller as an important part of the circuitry. This has eliminated the weight and space-consuming components that make up an original design. The singular use of this microcontroller places the UPS under the class of an advanced technology device.
description: 20 pages, 15 figures, 4 tables, journal paper
Ultracold atomic gases in artificial magnetic fields
Creators: name: Osterloh, Klaus
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2006
Subjects: subject: Strongly correlated systems
subject: quantum Hall effect
subject: non-Abelian gauge theories
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Urokinase receptor in regulation of cellular senescence and DNA damage response : role for the ubiquitin-proteasomal system
Creators: name: Hodjat, Mahshid
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Urokinase receptor
subject: DNA damage response
subject: TRF2
subject: ubiquitin proteasome system
subject: Urokinase Rezeptor
subject: Antwort auf DNA-Schädigungen
subject: Ubiquitin-Proteasom-System
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Prunus persica Poiret
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: V. persica Poiret (V. Tournefortii Gmelin, V. Buxbaumii Ten.) Cat. 272. l: Les Oranges (Oberson); Salvan (J., Wurgler); Les Marecottes (Wurgler). - 2: Tassonnieres (Terretaz); Grimisuat (Wurgler); Siders (J.). - 3: Le Brocard und Colline de St-Jean bei Martigny (Closuit); Lourtier (Wurgler); Econe (J.). -3a: Gondo (Becherer).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Winds, Clumps, and Interacting Cosmic Rays in M82
Creators: name: Yoast-Hull, Tova M.
name: Everett, John E.
name: Gallagher, J. S.
name: Zweibel, Ellen G.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We construct a family of models for the evolution of energetic particles in the starburst galaxy M82 and compare them to observations to test the calorimeter assumption that all cosmic ray energy is radiated in the starburst region. Assuming constant cosmic ray acceleration efficiency with Milky Way parameters, we calculate the cosmic-ray proton and primary and secondary electron/positron populations as a function of energy. Cosmic rays are injected with Galactic energy distributions and electron-to-proton ratio via type II supernovae at the observed rate of 0.07/yr. From the cosmic ray spectra, we predict the radio synchrotron and γ-ray spectra. To more accurately model the radio spectrum, we incorporate a multiphase interstellar medium in the starburst region of M82. Our model interstellar medium is highly fragmented with compact dense molecular clouds and dense photoionized gas, both embedded in a hot, low density medium in overall pressure equilibrium. The spectra predicted by this one-zone model are compared to the observed radio and γ-ray spectra of M82. Chi-squared tests are used with radio and γ-ray observations and a range of model predictions to find the best-fit parameters. The best-fit model yields constraints on key parameters in the starburst zone of M82, including a magnetic field strength of ~250 μG and a wind advection speed in the range of 300-700 km/s. We find that M82 is a good electron calorimeter but not an ideal cosmic-ray proton calorimeter and discuss the implications of our results for the astrophysics of the far infrared-radio correlation in starburst galaxies.
description: 17 pages, 9 figures, to be published in ApJ
The two-dimensional 4-state Potts model in a magnetic field
Creators: name: Berche, Bertrand
name: Butera, Paolo
name: Shchur, Lev
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a solution of the non-linear renormalization group equations leading to the dominant and subdominant singular behaviours of physical quantities (free energy density, correlation length, internal energy, specific heat, magnetization, susceptibility and magnetocaloric coefficient) at the critical temperature in a non- vanishing magnetic field. The solutions i) lead to exact cancellation of logarithmic corrections in universal amplitude ratios and ii) prove recently proposed relations among logarithmic exponents.
Clustering in Nuclei from N/Z=1 to N/Z=2
Creators: name: Catford, W. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The clustering of nucleons in nuclei is a widespread but elusive phenomenon for study. Here, we wish to highlight the variety of theoretical approaches, and demonstrate how they are mutually supportive and complementary. On the experimental side, we describe recent advances in the study of the classic cluster nucleus 24Mg. Also, recent studies of clustering in nuclei approaching the neutron drip line are described. In the region near N/Z=2, both theory and experiment now suggest that multi-centre cluster structure is important, in particular for the very neutron rich beryllium isotopes.
description: Proc. Int. Conf. held at Faure, Cape Town, January 1999
Wilhelm Reusch / Marcel Lutz / Hans-Peter Kuhnen, Die Ausgrabungen im Westteil der Trierer Kaiserthermen 1960—1966. Der Stadtpalast des Finanzprocurators der Provinzen Belgica, Ober- und Niedergermanien
Creators: name: Reddé, Michel
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Rezension zu: Wilhelm Reusch / Marcel Lutz / Hans-Peter Kuhnen, Die Ausgrabungen im Westteil der Trierer Kaiserthermen 1960—1966. Der Stadtpalast des Finanzprocurators der Provinzen Belgica, Ober- und Niedergermanien. Archäologie aus Rheinland-Pfalz volume 1. Verlag Marie Leidorf, Rahden / Westf. 2012. € 69,80. ISBN 978-3-86757-651-2. 380 pages avec 179 illustrations, 28 planches, 8 supplements, 1 CD-Rom.
description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 93 (2015)
A table-top laser-based source of femtosecond, collimated, ultra-relativistic positron beams
Creators: name: Sarri, G.
name: Schumaker, W.
name: Di Piazza, A.
name: Vargas, M.
name: Dromey, B.
name: Dieckmann, M. E.
name: Chvykov, V.
name: Maksimchuk, A.
name: Yanovsky, V.
name: He, Z. H.
name: Hou, B. X.
name: Nees, J. A.
name: Thomas, A. G. R.
name: Keit, C. H.
name: Zepf, M.
name: Krushelnick, K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The generation of ultra-relativistic positron beams with short duration ($τ_{e^+} \leq 30$ fs), small divergence ($θ_{e^+} \simeq 3$ mrad), and high density ($n_{e^+} \simeq 10^{14} - 10^{15}$ cm$^{-3}$) from a fully optical setup is reported. The detected positron beam propagates with a high-density electron beam and $γ$-rays of similar spectral shape and peak energy, thus closely resembling the structure of an astrophysical leptonic jet. It is envisaged that this experimental evidence, besides the intrinsic relevance to laser-driven particle acceleration, may open the pathway for the small-scale study of astrophysical leptonic jets in the laboratory.
Usability and expressiveness in database keyword search : bridging the gap
Creators: name: Demidova, Elena
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Volltextsuche in relationalen Datenbanken
subject: interaktive Erstellung komplexer Suchanfragen
subject: Diversifizierung der Suchergebnisse
subject: Keyword search in relational databases
subject: incremental query construction
subject: diversification of search results
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::020 | Bibliotheks- und Informationswissenschaft
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: [no abstract]
Estimates of the uniform approximations by Zygmund sums on the classes of convolutions of periodic functions
Creators: name: Serdyuk, A. S.
name: Grabova, U. Z.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics

description: We obtain order-exact estimates for uniform approximations by using Zygmund sums $Z^{s}_{n}$ of classes $C^ψ_{β,p}$ of $2π$-periodic continuous functions $f$ representable by convolutions of functions from unit balls of the space $L_{p}$, $1< p
description: 17 pages, in Ukrainian
User accessibility of web data
Creators: name: Zenz, Gideon
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2013
Subjects: subject: Query processing
subject: query formulation
subject: user interfaces
subject: Dewey Decimal Classification::000 | Allgemeines, Wissenschaft::000 | Informatik, Wissen, Systeme::004 | Informatik

description: [no abstract]
Cosmological Simulations of Isotropic Conduction in Galaxy Clusters
Creators: name: Smith, Britton D.
name: O'Shea, Brian W.
name: Voit, G. Mark
name: Ventimiglia, David
name: Skillman, Samuel W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Simulations of galaxy clusters have a difficult time reproducing the radial gas-property gradients and red central galaxies observed to exist in the cores of galaxy clusters. Thermal conduction has been suggested as a mechanism that can help bring simulations of cluster cores into better alignment with observations by stabilizing the feedback processes that regulate gas cooling, but this idea has not yet been well tested with cosmological numerical simulations. Here we present cosmological simulations of ten galaxy clusters performed with five different levels of isotropic Spitzer conduction, which alters both the cores and outskirts of clusters, but not dramatically. In the cores, conduction flattens central temperature gradients, making them nearly isothermal and slightly lowering the central density but failing to prevent a cooling catastrophe there. Conduction has little effect on temperature gradients outside of cluster cores because outward conductive heat flow tends to inflate the outer parts of the intracluster medium (ICM) instead of raising its temperature. In general, conduction tends reduce temperature inhomogeneity in the ICM, but our simulations indicate that those homogenizing effects would be extremely difficult to observe in ~5 keV clusters. Outside the virial radius, our conduction implementation lowers the gas densities and temperatures because it reduces the Mach numbers of accretion shocks. We conclude that despite the numerous small ways in which conduction alters the structure of galaxy clusters, none of these effects are significant enough to make the efficiency of conduction easily measurable unless its effects are more pronounced in clusters hotter than those we have simulated.
description: 13 pages, 13 figures. Submitted to The Astrophysical Journal
Validation of nominations in gas networks and properties of technical capacities
Creators: name: Willert, Bernhard Michael
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2014
Subjects: subject: Technical capacities of gas networks
subject: mixed-integer nonlinear optizimation
subject: complementarity constraints
subject: MPEC
subject: Technische Kapazitäten von Gasnetzen
subject: gemisch-ganzzahlige nichtlineare Optimierung
subject: Komplementaritätsbedingungen
subject: Dewey Decimal Classification::600 | Technik::660 | Technische Chemie

description: [no abstract]
Veronica polita Fries
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: V.polita Fries (V. didyma Ten.) Cat. 272. l: Outre-Rhone (Garns). -3: Valsorey (Guyot); Saastal: Eisten (A. Keller), Fee (Hirschmann).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Topological acceleration in relativistic cosmology
Creators: name: Roukema, Boudewijn F.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Heuristic approaches in cosmology bypass more difficult calculations that would more strictly agree with the standard Einstein equation. These give us the well-known Friedmann-Lemaitre-Robertson-Walker (FLRW) models, and, more recently, the feedback effect of the global topology of spatial sections on the acceleration of test particles. Forcing the FLRW heuristic model on observations leads to dark energy, which, pending fully relativistic calculations, is best interpreted as an artefact. Could topological acceleration also be an artefact of using a heuristic approach? A multiply connected exact solution of the Einstein equation shows that topological acceleration is present in at least one fully relativistic case---it is not an artefact of Newtonian-like thinking.
description: 4 pages, 1 figure, Multiverse and Fundamental Cosmology Conference, 10-14 September, 2012, Szczecin, Poland
Bifurcations and Competing Coherent Structures in the Cubic-Quintic Ginzburg-Landau Equation I: Plane Wave (CW) Solutions
Creators: name: Mancas, Stefan C.
name: Choudhury, S. Roy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: Singularity Theory is used to comprehensively investigate the bifurcations of the steady-states of the traveling wave ODEs of the cubic-quintic Ginzburg-Landau equation (CGLE). These correspond to plane waves of the PDE. In addition to the most general situation, we also derive the degeneracy conditions on the eight coefficients of the CGLE under which the equation for the steady states assumes each of the possible quartic (the quartic fold and an unnamed form), cubic (the pitchfork and the winged cusp), and quadratic (four possible cases) normal forms for singularities of codimension up to three. Since the actual governing equations are employed, all results are globally valid, and not just of local applicability. In each case, the recognition problem for the unfolded singularity is treated. The transition varieties, i.e. the hysteresis, isola, and double limit curves are presented for each normal form. For both the most general case, as well as for various combinations of coefficients relevant to the particular cases, the bifurcations curves are mapped out in the various regions of parameter space delimited by these varieties. The multiplicities and interactions of the plane wave solutions are then comprehensively deduced from the bifurcation plots in each regime, and include features such as regimes of hysteresis among co-existing states, domains featuring more than one interval of hysteresis, and isola behavior featuring dynamics unrelated to the primary solution branch in limited ranges of parameter space.
description: 33 pages, 9 figures
title: Investigation of the Accuracy of Alcohol and Drug Involvement Reporting
Creators: name: Staats, William Nicholas
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 2019

description: Executive Summary

Researchers compared the 2013 to 2017 fatal crash data from the KSP database to the crash data from the FARS database to check the consistency and accuracy of alcohol and drug involvement reporting for drivers in the KSP database. The indications of alcohol and drug involvement in the FARS database were used as the ground truth due to the inclusion of laboratory test results confirming the presence of alcohol and/or drugs in a driver’s system. For the five-year study period, the indications for alcohol involvement were 85.8% consistent and the indications of drug involvement were 66.2% consistent between the two databases. Of the fatal crashes where FARS confirmed alcohol involvement for a driver, KSP crash reports only identified 64.2% as involving alcohol. Of the fatal crashes where FARS confirmed drug involvement for a driver, KSP crash reports only identified 11.8% as involving drugs.

When comparing officer identification of alcohol or drug involvement to the confirmed presence either alcohol or drugs in FARS, consistency was 66.6% on average. Of the crashes shown by FARS to involve a driver testing positive for drugs or alcohol, officers identified 39.5% of these crashes as alcohol or drug involved. This increase in percentage compared to the consistency and accuracy of identification of drug involvement suggests that officers are aware that a driver may be under the influence of a substance, but they may not be indicating the correct substance.

The inclusion of drug concentrations found in a driver’s system in the FARS database could help make the distinction between drug presence that might affect driving abilities and drug presence due to a simple prescription, which may not affect driving ability. More training for officers to identify the signs of drug involved driving would also be useful to increase the percentage of drug involved driving identified by police.

Analysis of the crash characteristics from the KSP crash database showed that 93% of all alcohol involved fatal crashes occurred at nighttime, on a weekend, or as a single vehicle crash. Furthermore, alcohol involved fatal crashes were nearly two times more likely to occur at nighttime and three times more likely to occur on a weekend at nighttime than non-alcohol involved fatal crashes. Alcohol involved fatal crashes were also shown to occur more frequently in residential and rural areas than non-alcohol involved fatal crashes.

Alcohol and drug involved fatal crash rates were shown to be highest in Eastern Kentucky counties, with drug involved crash rates being higher, on average, than alcohol involved crash rates.
description: Copyright:
© 2018 University of Kentucky, Kentucky Transportation Center
X-ray source population study of the starburst galaxy M83 with XMM-Newton
Creators: name: Ducci, L.
name: Sasaki, M.
name: Haberl, F.
name: Pietsch, W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results obtained from the analysis of three XMM-Newton observations of M83. The aims of the paper are studying the X-ray source populations in M83 and calculating the X-ray luminosity functions of X-ray binaries for different regions of the galaxy. We detected 189 sources in the XMM-Newton field of view in the energy range of 0.2-12 keV. We constrained their nature by means of spectral analysis, hardness ratios, studies of the X-ray variability, and cross-correlations with catalogues in X-ray, optical, infrared, and radio wavelengths. We identified and classified 12 background objects, five foreground stars, two X-ray binaries, one supernova remnant candidate, one super-soft source candidate and one ultra-luminous X-ray source. Among these sources, we classified for the first time three active galactic nuclei (AGN) candidates. We derived X-ray luminosity functions of the X-ray sources in M83 in the 2-10 keV energy range, within and outside the D_25 ellipse, correcting the total X-ray luminosity function for incompleteness and subtracting the AGN contribution. The X-ray luminosity function inside the D_25 ellipse is consistent with that previously observed by Chandra. The Kolmogorov-Smirnov test shows that the X-ray luminosity function of the outer disc and the AGN luminosity distribution are uncorrelated with a probability of about 99.3%. We also found that the X-ray sources detected outside the D_25 ellipse and the uniform spatial distribution of AGNs are spatially uncorrelated with a significance of 99.5%. We interpret these results as an indication that part of the observed X-ray sources are X-ray binaries in the outer disc of M83.
description: Accepted for publication in Astronomy and Astrophysics. 30 pages. Appendices will be published electronically only
Use of halophytes as biofilter to decrease organic and inorganic contaminants in water and their further use for biogas production
Creators: name: Turcios Pantaleón, Ariel Eliseo
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Anaerobic digestion
subject: biogas production
subject: Chenopodium quinoa
subject: halophytes
subject: phytoremediation
subject: renewable energy
subject: sulfadimidine degradation
subject: Tripolium pannonicum
subject: Anaerobe Gärung
subject: Biogasproduktion
subject: Halophyten
subject: erneuerbare Energie
subject: Sulfonamid-Abbau
subject: Dewey Decimal Classification::500 | Naturwissenschaften::570 | Biowissenschaften, Biologie

description: [no abstract]
Validations, further developments, and applications of a Lagrangian cloud model
Creators: name: Hoffmann, Fabian
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Clouds
subject: modeling
subject: aerosols
subject: Wolken
subject: Modellierung
subject: Aerosole
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: [no abstract]
Veronica hederifolia L.
Creators: name: Becherer
Publisher: name: Zenodo
Year: 1956
Subjects: Biodiversity
Taxonomy

description: V. hederifolia L. Cat. 272. Verbreitet; auch Simplonsüdseite (Becherer). Bis über 2000 m bei Zermatt: Findelen, Roggenfelder, 2080 m (Braun-Blanquet und Thellung 1919), ebenda etwa 2100 m (Becherer und Berset 1945).
description: Published as part of Becherer, 1956, Florae Vallesiacae Supplementum, pp. 1-556 in Denkschriften der Schweizerischen Naturforschenden Gesellschaft 71 on pages 1-556
Urokinase-activated Stat1 mediates antiproliferative effect in vascular smooth muscle cells cocultered with monocytes
Creators: name: Kunigal, Sateesh Sreenivasan
Publisher: name: Hannover : Universität
Year: 2003
Subjects: subject: Atherosclerosis
subject: urokinase-type plasminogen activator and receptor (uPA-uPAR) system
subject: signal transducer and activator of transcription 1 (Stat1)
subject: coculture
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: [no abstract]
NUTRITION AS A TOOL TO MODULATE PRODUCTION ANIMAL HEALTH
Creators: name: MARIANI, ELENA
Publisher: name: Universit� degli Studi di Milano
Year: 2019

description: Nutrition plays an important role in maintaining a good health status of animals as nutrients can modulate oxidative status, immune and inflammatory response. Moreover, there is a need of innovative additives and feeds that can improve organism defences against diseases. The aim of this work was to monitor different markers of oxidative stress and inflammation in production animals in response to different feed additives. In this study, first, the activation of Nuclear factor-E2 related factor 2 in transgenic mice fed different sources and amount of fatty acids was monitored. Inducing the transcription of genes involved in oxidative stress response, Nrf2 represents one of the main actor in the organism defence against oxidative stress. In this phase, we used an innovative technique of in vivo imaging that allowed us to follow the experimental subject in time and in vivo. reducing significantly animal stress. Secondly, an evaluation of different oxidative and inflammatory markers was carried on post-weaning piglets fed with melon pulp concentrate. The double aim of this trial was to validate melon pulp concentrate as a feed additives to improve immune response in challenged pigs and to monitor the trends of commonly used markers during LPS challenge. Then, as the effectiveness of new feed additives are under investigation and their effect on intestinal health need to be demonstrated, is essential to turn attention to intestinal health biomarkers, non- or minimally invasive. For this reason, the main aim of the last study was to develop and validate a new sandwich ELISA test for the quantification of Pacreatitis Associated Protein in pig faecal samples. Finally, an observational study on a new Oxidative Stress Index (OSi) was conducted on dairy cows during the transition period. The driving hypothesis was that a composed index, as OSi, predicts more accurately the oxidative status than the evaluation of reactive oxygen species or serum antioxidant capacity separately. Furthermore, the relationship between indexes of oxidative status and markers of energy balance as blood free fatty acids and ?-hydroxybutyrate, was determined.
Use of knowledge based systems for the detection and monitoring of unplanned developments
Creators: name: Karanja, Faith Njoki
Publisher: name: Hannover : Universität
Year: 2002
Subjects: subject: Knowledge based image interpretation
subject: detection of unplanned developments
subject: urban growth simulation
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften

description: [no abstract]
Wave-induced responses of stepped revetments
Creators: name: Kerpen, Nils Bernhard
Publisher: name: Hannover : Gottfried Wilhelm Leibniz Universität Hannover
Year: 2017
Subjects: subject: Stepped revetment
subject: energy dissipation
subject: wave run-up
subject: wave overtopping
subject: physical model test
subject: Getreppte Deckwerke
subject: Energiedissipation
subject: Wellenauflauf
subject: Wellenüberlauf
subject: physikalischer Modellversuch
subject: Dewey Decimal Classification::500 | Naturwissenschaften::550 | Geowissenschaften
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau::624 | Ingenieurbau und Umwelttechnik

description: [no abstract]
title: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 15, Nr. 4 (1931)
title: Germania
titleType: AlternativeTitle
Creators: name: Germania : Anzeiger Der Römisch-Germanischen Kommission Des Deutschen Archäologischen Instituts
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2016

description: Zur Geschichte der Griffzungenschwerter...217-221
Ausgrabung in Vetera 1930...221-229
Neues von Sumelocenna-Rottenburg, Clarenna (?)-Donnstetten und Arae Flaviae-Rottweil...230-236
Der Name des Römerkastells an der Illermündung...236-244
Das bandkeramische Dorf bei Köln-Lindenthal...244-252
Ein bandkeramisches Dorf in Nordböhmen...252-255
Frühgermanische Funde aus der Friedberger Gegend...255-260
Cives Agrippinenses in Aquincum...260-265
Die Heimat der Wandalen...265-267
Neue Literatur über römische Münzfunde im freien Germanien...267-271
Römisches Landmesserinstrument aus Koblenz...271-272
Kleine Mitteilungen...273-275
Fundchronik...276-298
Besprechungen...298-307
Neuerscheinungen...307-312