cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Northern Ireland Social Mobility Survey, 1996
Creators: name: Breen, R.
Publisher: name: UK Data Service
Year: 1998

description: The aims and objectives of this project were :
 to examine the relationship between, one the one hand, social mobility and on the other, political preferences, attitudes and behaviour within the context of Northern Ireland, a society which is deeply divided on politico-religious backgrounds. In particular, the aim was to determine the degree to which those who are socially mobile display patterns of political preferences, attitudes or behaviour (in specific areas) which are distinctively different from those characteristic of their class of origin or class of destination;
 to advance our understanding of whether social mobility might lead to change in political attitudes and constitutional aspirations in Northern Ireland, as is widely believed;
 to advance the methodological analysis within the 'mobility effects' literature by (i) addressing, within the Sobel (1981) framework, the issue of measurement error; (ii) extending the model to take into account intra-generational, as well as extra-generational, mobility;
 to construct a social mobility dataset for Northern Ireland which will permit further research on social mobility in at least three areas, (i) an examination of the changes in the Northern Ireland male mobility regime over the period 1973 to 1995. This will be based on a comparison with 1973 mobility data; (ii) a cross-national study of changes in the male mobility regime over the same period in comparison with the Republic of Ireland; (iii) the first examination of female mobility patterns In Northern Ireland.
L lines, C points and Chern numbers: understanding band structure topology using polarization fields
Creators: name: Fösel, Thomas
name: Peano, Vittorio
name: Marquardt, Florian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Topology has appeared in different physical contexts. The most prominent application is topologically protected edge transport in condensed matter physics. The Chern number, the topological invariant of gapped Bloch Hamiltonians, is an important quantity in this field. Another example of topology, in polarization physics, are polarization singularities, called L lines and C points. By establishing a connection between these two theories, we develop a novel technique to visualize and potentially measure the Chern number: it can be expressed either as the winding of the polarization azimuth along L lines in reciprocal space, or in terms of the handedness and the index of the C points. For mechanical systems, this is directly connected to the visible motion patterns.
description: 16 pages, 5 figures; presented at the APS March Meeting 2017 (session A15)
Coping with Government in the FSU/ECE, 1996-1998
Creators: name: Koshechkina, T. Y.
name: Miller, W. L.
name: Grodeland, A. Berit
Publisher: name: UK Data Service
Year: 1999

description: The purpose of this project was to see how citizens view their interactions with officials in various post-communist countries, in particular, to see: what kinds of `unfair' treatment people complain about; whether they have personal experience of unfair treatment or whether they are simply repeating hearsay and gossip; whether people think the change from communism to democracy made things better or worse; what strategies people adopt in dealing with officials; whether people really resent flexible behaviour by officials or regard it as a useful facility, and finally, what changes they would make to improve the interaction between citizens and the state. Conversely, to look at the perceptions and experiences of officials themselves, providing them with a right of reply.
 Ukraine, Bulgaria, Slovakia and the Czech Republic were chosen as the focus for the research.
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1777

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Common envelope light-curves - I. grid-code module calibration
Creators: name: Galaviz, Pablo
name: De Marco, Orsola
name: Passy, Jean-Claude
name: Staff, Jan E.
name: Iaconi, Roberto
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The common envelope binary interaction occurs when a star transfers mass onto a companion that cannot fully accrete it. The interaction can lead to a merger of the two objects or to a close binary. The common envelope interaction is the gateway of all evolved compact binaries, all stellar mergers and likely many of the stellar transients witnessed to date. Common envelope simulations are needed to understand this interaction and to interpret stars and binaries thought to be the byproduct of this stage. At this time, simulations are unable to reproduce the few observational data available and several ideas have been put forward to address their shortcomings. The need for more definitive simulation validation is pressing, and is already being fulfilled by observations from time-domain surveys. In this article, we present an initial method and its implementation for post-processing grid-based common envelope simulations to produce the light-curve so as to compare simulations with upcoming observations. Here we implemented a zeroth order method to calculate the light emitted from common envelope hydrodynamic simulations carried out with the 3D hydrodynamic code Enzo used in uni-grid mode. The code implements an approach for the computation of luminosity in both optically thick and optically thin regimes and is tested using the first 135 days of the common envelope simulation of Passy et al. (2012), where a 0.8 solar masses red giant branch star interacts with a 0.6 solar masses companion. This code is used to highlight two large obstacles that need to be overcome before realistic light curves can be calculated. We explain the nature of these problems and the attempted solutions and approximations in full detail to enable the next step to be identified and implemented. We also discuss our simulation in relation to recent data of transients identified as common envelope interactions.
description: Accepted by The Astrophysical Journal Supplement. 22 pages, 16 figures, 1 appendix
Quantum Supersymmetric Cosmological Billiards and their Hidden Kac-Moody Structure
Creators: name: Damour, Thibault
name: Spindel, Philippe
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the quantum fermionic billiard defined by the dynamics of a quantized supersymmetric squashed three-sphere (Bianchi IX cosmological model within D=4 simple supergravity). The quantization of the homogeneous gravitino field leads to a 64-dimensional fermionic Hilbert space. We focus on the 15- and 20-dimensional subspaces (with fermion numbers N_F=2 and N_F=3) where there exist propagating solutions of the supersymmetry constraints that carry (in the small-wavelength limit) a chaotic spinorial dynamics generalizing the Belinskii-Khalatnikov-Lifshitz classical "oscillatory" dynamics. By exactly solving the supersymmetry constraints near each one of the three dominant potential walls underlying the latter chaotic billiard dynamics, we compute the three operators that describe the corresponding three potential-wall reflections of the spinorial state describing, in supergravity, the quantum evolution of the universe. It is remarkably found that the latter, purely dynamically-defined, reflection operators satisfy generalized Coxeter relations which define a type of spinorial extension of the Weyl group of the rank-3 hyperbolic Kac-Moody algebra AE_3.
description: 35 pages, 1 figure
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1778

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Druck: Bernoulli, Johann 1744-1807. - Recueil pour les astronomes / par M. Jean Bernoullli. - Berlin : [s.n.], 4, 1778, 32
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Magnetic field dynamos and magnetically triggered flow instabilities
Creators: name: Stefani, Frank
name: Albrecht, Thomas
name: Arlt, Rainer
name: Christen, Michael
name: Gailitis, Agris
name: Gellert, Marcus
name: Giesecke, André
name: Goepfert, Oliver
name: Herault, Johann
name: Kirillov, Oleg
name: Mamatsashvili, George
name: Priede, Janis
name: Ruediger, Guenther
name: Seilmayer, Martin
name: Tilgner, Andreas
name: Vogt, Tobias
Publisher: name: arXiv
Year: 2017
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: The project A2 of the LIMTECH Alliance aimed at a better understanding of those magnetohydrodynamic instabilities that are relevant for the generation and the action of cosmic magnetic fields. These comprise the hydromagnetic dynamo effect and various magnetically triggered flow instabilities, such as the magnetorotational instability and the Tayler instability. The project was intended to support the experimental capabilities to become available in the framework of the DREsden Sodium facility for DYNamo and thermohydraulic studies (DRESDYN). An associated starting grant was focused on the dimensioning of a liquid metal experiment on the newly found magnetic destabilization of rotating flows with positive shear. In this paper, the main results of these two projects are summarized.
description: 17 pages, 10 figures
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1776

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Landau level spectroscopy of massive Dirac fermions in single-crystalline ZrTe5 thin flakes
Creators: name: Jiang, Y.
name: Dun, Z. L.
name: Zhou, H. D.
name: Lu, Z.
name: Chen, K. -W.
name: Moon, S.
name: Besara, T.
name: Siegrist, T. M.
name: Baumbach, R. E.
name: Smirnov, D.
name: Jiang, Z.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report infrared magneto-spectroscopy studies on thin crystals of an emerging Dirac material ZrTe5 near the intrinsic limit. The observed structure of the Landau level transitions and zero-field infrared absorption indicate a two-dimensional Dirac-like electronic structure, similar to that in graphene but with a small relativistic mass corresponding to a 9.4 meV energy gap. Measurements with circularly polarized light reveal a significant electron-hole asymmetry, which leads to splitting of the Landau level transitions at high magnetic fields. Our model, based on the Bernevig-Hughes-Zhang effective Hamiltonian, quantitatively explains all observed transitions, determining the values of the Fermi velocity, Dirac mass (or gap), electron-hole asymmetry, and electron and hole g-factors.
Direct Observation of Entropic Stabilization of bcc Crystals Near Melting
Creators: name: Sprakel, Joris
name: Zaccone, Alessio
name: Spaepen, Frans
name: Schall, Peter
name: Weitz, David A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Crystals with low latent heat are predicted to melt from an entropically stabilized body-centered cubic symmetry. At this weakly first-order transition, strongly correlated fluctuations are expected to emerge, which could change the nature of the transition. Here we show how large fluctuations stabilize bcc crystals formed from charged colloids, giving rise to strongly power-law correlated heterogeneous dynamics. Moreover, we find that significant nonaffine particle displacements lead to a vanishing of the nonaffine shear modulus at the transition. We interpret these observations by reformulating the Born-Huang theory to account for nonaffinity, illustrating a scenario of ordered solids reaching a state where classical lattice dynamics fail.
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1780

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Estimation of squeezing properties of multiphoton coherent states from optical tomograms
Creators: name: Laha, Pradip
name: Lakshmibala, S
name: Balakrishnan, V
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have examined both single and entangled two-mode multiphoton coherent states and shown how the `Janus-faced' properties between two partner states are mirrored in appropriate tomograms. Entropic squeezing, quadrature squeezing and higher-order squeezing properties for a wide range of nonclassical states are estimated directly from tomograms. We have demonstrated how squeezing properties of two-mode entangled states produced at the output port of a quantum beamsplitter are sensitive to the relative phase between the reflected and transmitted fields. This feature allows for the possibility of tuning the relative phase to enhance squeezing properties of the state. Finally we have examined the manner in which decoherence affects squeezing and the changes in the optical tomogram of the state due to interaction with the environment.
description: 18 pages, 33 figures
Zeros of polynomials with four-term recurrence
Creators: name: Tran, Khang
name: Zumba, Andres
Publisher: name: arXiv
Year: 2017
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 30C15, 26C10, 11C08

description: For any real numbers $b,c\in\mathbb{R}$, we form the sequence of polynomials $\left\{ H_{m}(z)\right\} _{m=0}^{\infty}$ satisfying the four-term recurrence \[ H_{m}(z)+cH_{m-1}(z)+bH_{m-2}(z)+zH_{m-3}(z)=0,\qquad m\ge3, \] with the initial conditions $H_{0}(z)=1$, $H_{1}(z)=$$-c$, and $H_{2}(z)=-b+c^{2}$. We find necessary and sufficient conditions on $b$ and $c$ under which the zeros of $H_{m}(z)$ are real for all $m$, and provide an explicit real interval on which ${\displaystyle \bigcup_{m=0}^{\infty}\mathcal{Z}(H_{m})}$ is dense where $\mathcal{Z}(H_{m})$ is the set of zeros of $H_{m}(z)$.
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1772

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1775

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Barjols, atelier Fabre, fabrication du galoubet, essai d'émission du son avant la taille de la baguette
Creators: name: Musée National Des Arts Et Traditions Populaires (Paris)
name: Centre D'ethnologie Française
Publisher: name: École des Hautes Études en Sciences Sociales; Institut  interdisciplinaire d'anthropologie du contemporain (Paris); Laboratoire d'anthropologie et d'histoire de l'institution de la culture (Paris)
Year: 2024

Abstract
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
name: Mayer, Tobias
Publisher: name: [s.n.]
Year: 1771
Subjects: Mayer, Tobias1723-1762

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
description: Bl. 111-112r: Excerpta ex scripto, cui titulus: observationes astronomicae quadrante murali habitae von Tobias Mayer, 1756  (Kopie)
description: Bl. 112v-115: Untersuchung was es für Fehler in Messung eines Winkels gibt von Abraham Gotthelf Kästner, 1771 (Kopie)
description: Bl. 116-119: Über Mayers Formeln: die Fehler an der Stellung eines Quadrates betreffend von Abraham Gotthelf Kästner, 1771 (Kopie)
Logamediate Inflation in f(T) Teleparallel Gravity
Creators: name: Rezazadeh, Kazem
name: Abdolmaleki, Asrin
name: Karami, Kayoomars
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study logamediate inflation in the context of $f(T)$ teleparallel gravity. $f(T)$-gravity is a generalization of the teleparallel gravity which is formulated on the Weitzenböck spacetime, characterized by the vanishing curvature tensor (absolute parallelism) and the non-vanishing torsion tensor. We consider an $f(T)$-gravity model which is sourced by a canonical scalar field. Assuming a power-law $f(T)$ function in the action, we investigate an inflationary universe with a logamediate scale factor. Our results show that, although logamediate inflation is completely ruled out by observational data in the standard inflationary scenario based on Einstein gravity, it can be compatible with the 68\% confidence limit joint region of Planck 2015 TT,TE,EE+lowP data in the framework of $f(T)$-gravity.
description: 12 pages, 2 figures
On the analytic properties of intertwining operators II: local degree bounds and limit multiplicities
Creators: name: Finis, Tobias
name: Lapid, Erez
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: In this paper we continue to study the degrees of matrix coefficients of intertwining operators associated to reductive groups over $p$-adic local fields. Together with previous analysis of global normalizing factors we can control the analytic properties of global intertwining operators for a large class of reductive groups over number fields, in particular for inner forms of $GL(n)$ and $SL(n)$ and quasi-split classical groups. This has a direct application to the limit multiplicity problem for these groups.
Role of semaphorin3F signaling in the development and maintenance functional neuronal connectivity in the mouse primary visual cortex
Creators: name: Khdour, Hussain
Publisher: name: No Publisher Supplied
Year: 2023

description: The functions of cortical networks are progressively established during development by series of events shaping the neuronal connectivity. Synaptic elimination, which consists in removing the supernumerary connections generated during the earliest stages of cortical development, is one of the latest stages of the neuronal network maturation. The establishment of the cortical circuits during development is under the control of multiple signaling systems. The Semaphorin 3F co-receptors Neuropilin 2 (Nrp2) and Plexin-A3 (PlxnA3) may play an important role in the functional maturation of the cerebral cortex by regulating the excess of dendritic spines on cortical excitatory neurons. Yet, the identity of the connections eliminated under the control of Nrp2/PlxnA3 signaling is debated and the importance of this synaptic refinement for cortical functions remains poorly understood. Moreover, Sema3F and Nrp2 remain expressed in the adult neocortex. Yet, the role of this signaling pathway during adulthood, once cortical connectivity is established, was never assessed. Using a combination of neuroanatomical, ex vivo electrophysiology and in vivo functional imaging techniques in Nrp2 and PlxnA3 KO mice, we showed that Nrp2/PlxnA3 controls the spine densities in layer 4 (L4) and on the apical dendrite of layer 5 (L5) neurons of the sensory and motor cortices. We then disproved the hypothesis that Nrp2/PlxnA3 signaling controls the pruning of the thalamocortical connections. We also showed that the absence of Nrp2/PlxnA3 signaling leads to an hyperexcitability and an excessive synchronization of the neuronal activity in L5 and L4 neuronal networks, suggesting that this system could participate in the refinement of the recurrent corticocortical connectivity in those layers. In addition, we show that V1 L5 cortical neurons show increase in spine density in primary apical dendrites when deleting Nrp2 acutely during adulthood. This absence of pruning of newly formed spines is associated with a deterioration of the computational properties of those neurons as well as excessive synchronization of the neuronal activity in L5. Altogether, our results argue for a role of Semaphorin-Nrp2/PlxnA3 signaling in the maturation and maintenance of the functional connectivity of the cerebral cortex likely by controlling the refinement of the recurrent corticocortical connectivity.
A Modern Search for Wolf-Rayet Stars in the Magellanic Clouds. III. A Third Year of Discoveries
Creators: name: Massey, Philip
name: Neugent, Kathryn F.
name: Morrell, Nidia
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: For the past three years we have been conducting a survey for WR stars in the Large and Small Magellanic Clouds (LMC, SMC). Our previous work has resulted in the discovery of a new type of WR star in the LMC, which we are calling WN3/O3. These stars have the emission-line properties of a WN3 star (strong N V but no N IV), plus the absorption-line properties of an O3 star (Balmer hydrogen plus Pickering He II but no He I). Yet these stars are 15x fainter than an O3 V star would be by itself, ruling out these being WN3+O3 binaries. Here we report the discovery of two more members of this class, bringing the total number of these objects to 10, 6.5% of the LMC's total WR population. The optical spectra of nine of these WN3/O3s are virtually indistinguishable from each other, but one of the newly found stars is significantly different, showing a lower excitation emission and absorption spectrum (WN4/O4-ish). In addition, we have newly classified three unusual Of-type stars, including one with a strong C III 4650 line, and two rapidly rotating "Oef" stars. We also "rediscovered" a low mass x-ray binary, RX J0513.9-6951, and demonstrate its spectral variability. Finally, we discuss the spectra of ten low priority WR candidates that turned out not to have He II emission. These include both a Be star and a B[e] star.
description: ApJ, in press
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1771
Subjects: Mayer, Tobias1723-1762

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Druck: Kästner, Abraham Gotthelf. - Astronomische Abhandlungen zu weiterer Ausführung der astronomischen Anfangsgründe. - Göttingen, 1. Slg., 1772, 191-194
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
description: Bl. 109-110: Détail de la méthode que Mr. Mayer projettoit pour examiner un quart de cercle mural von Abraham Gotthelf Kästner, 1771
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1774

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1764

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Hidden Vacuum Rabi oscillations: Dynamical Quantum Superpositions of On/Off Interaction between a Single Quantum Dot and a Microcavity
Creators: name: Ridolfo, A.
name: Stassi, R.
name: Di Stefano, O.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that it is possible to realize quantum superpositions of switched-on and -off strong light-matter interaction in a single quantum dot- semiconductor microcavity system. Such superpositions enable the observation of counterintuitive quantum conditional dynamics effects. Situations are possible where cavity photons as well as the emitter luminescence display exponential decay but their joint detection probability exhibits vacuum Rabi oscillations. Remarkably, these quantum correlations are also present in the nonequilibrium steady state spectra of such coherently driven dissipative quantum systems.
description: 13 pages, 3 figures
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1771

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Druck: Bernoulli, Johann 1744-1807. - Recueil pour les astronomes / par M. Jean Bernoullli. - Berlin : [s.n.], II, 1772, 20-3
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1763

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire November 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Effect of Graphene on the Absorption and Extraordinary Transmission of Light in One Dimensional Metallic Gratings
Creators: name: Bagheri, Amirmasood
name: Rahmani, Babak
name: Khavasi, Amin
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Periodic metallic structures are known to support resonant extraordinary transmission (EOT). When covered with graphene, these structures can be employed to effectively manipulate the light. In this work, we propose an analytical circuit model for graphene-covered one-dimensional metallic gratings. By using the circuit theory, we demonstrate that one-dimensional periodic array of cut-through slits which are covered by a continuous graphene sheet exhibit tunable EOT resonance whose amplitude, unlike its spectral position, can be dynamically tuned by varying the Fermi level of graphene. In this fashion, it is shown that placing a perfect reflector at the bottom of the graphene-covered metallic grating results in the realization of a graphene-based absorber. By utilizing the circuit theory, it is illustrated that perfect absorption in the structure is not exclusive to the TM polarization, but also the TE polarized plane waves can be completely absorbed by duly adjusting the Fermi level of graphene. Criteria for the enhanced absorption are accordingly presented. Results of this work may provide a useful tool for designing novel devices based on the graphene-covered metallic gratings such as filters, modulators and efficient absorbers.
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1783

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Quantum effects on an atom with a magnetic quadrupole moment in a region with a time-dependent magnetic field
Creators: name: Fonseca, I. C.
name: Bakke, K.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The quantum description of an atom with a magnetic quadrupole moment in the presence of a time-dependent magnetic field is analysed. It is shown that the time-dependent magnetic field induces an electric field that interacts with the magnetic quadrupole moment of the atom and gives rise to a Landau-type quantization. It is also shown that a time-independent Schrödinger equation can be obtained, i.e., without existing the interaction between the magnetic quadrupole moment of the atom and the time-dependent magnetic field, therefore, the Schrödinger equation can be solved exactly. It is also analysed this system subject to scalar potentials.
description: 16 pages
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1788

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1784

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Averaging almost periodic functions along exponential sequences
Creators: name: Baake, Michael
name: Haynes, Alan
name: Lenz, Daniel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Number Theory (math.NT)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 42A75, 11J83, 37A45, 52C23

description: The goal of this expository article is a fairly self-contained account of some averaging processes of functions along sequences of the form $(α^n x)^{}_{n\in\mathbb{N}}$, where $α$ is a fixed real number with $| α| > 1$ and $x\in\mathbb{R}$ is arbitrary. Such sequences appear in a multitude of situations including the spectral theory of inflation systems in aperiodic order. Due to the connection with uniform distribution theory, the results will mostly be metric in nature, which means that they hold for Lebesgue-almost every $x\in\mathbb{R}$.
description: 18 pages, book contribution (expository)
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1785

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Localization of a microtubule organizing center by kinesin motors
Creators: name: Arita, Chikashi
name: Bosche, Jonas
name: Lück, Alexander
name: Santen, Ludger
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The microtubule (MT) motor Kip3p is very processive kinesin that promotes catastrophes and pausing in particular on cortical contact. These properties explain the role of Kip3p in positioning the mitotic spindle in budding yeast and potentially other processes controlled by kinesin-8 family members. We present a theoretical approach to positioning of a MT network in a cell. In order to explore the underlying mechanism we introduce an idealized system of two MTs connected by a microtubule organizing center (MTOC). The dynamics of Kip3p is modeled by interacting stochastic particles, which allows us to study the effects of motor-induced depolymerization under spatial confinement. We find that localization in the middle of the system is realized in a parameter regime where the motor densities on the MTs are increasing with the distance from the MTOC. Localization at an asymmetric position is also possible by tuning the kinesin input rates at the MT minus ends or attachment rates depending on different compartments of the cell.
description: 9 pages, 7 figures
OER-Strategie und was dann? Erfahrungen aus anderen Ländern. Keynote beim OERcamp 2022, Hamburg.
Creators: name: Schön, Sandra
name: Atenas, Javiera
Publisher: name: Graz University of Technology
Year: 2022
Subjects: oer

description: Keynote von Sandra Schön beim OERcamp 2022 am 24.10.2022 in Hamburg, mit Javiera Atenas als internationalen Gast. Die Unterlagen stehen unter CC BY 4.0 International, größenteils unter CC 0 - die Folien sind einzeln gekennzeichnet und die Logos sind jeweils von der Lizenzierung ausgenommen. Eine kommentierte Version der Keynote mit weiterführenden Links und Literaturangaben finden sich hier: https://sansch.wordpress.com/2022/10/24/keynote-oer-strategie-und-dann-erfahrungen-aus-anderen-landern/
Marriage Litigation in Scotland, 1694-1830
Creators: name: Leneman, L.
Publisher: name: UK Data Service
Year: 1999

description: The aim of the project was to transcribe and analyse the records of all declarator of marriage and declarator of freedom cases in the Edinburgh Commissary Court between 1684, when a register of extracted decreets began to be kept, and 1830, when the court was wound up and its functions transferred to the Court of Session.

 Marriage in Scotland could be 'regular' (a ceremony in church after the proclamation of the banns) or 'irregular', the latter being as legally binding as the former. An irregular marriage could be constituted in three ways: per verba de praesenti (a mutual agreement to marry at that moment), per verba de futuro subsequente copula (a promise to marry in the future followed by sexual intercourse), and 'habit and repute' (cohabiting in such a way as to imply that mutual consent to marriage had been given). As witnesses were not required, the scope for equivocation, not to mention outright fraud, was great, and litigation was an inevitable result. Until 1830 the Edinburgh Commissary Court was the only one in Scotland that could declare a marriage legally valid, though litigants had the right of appeal to the Court of Session and, after 1707, to the House of Lords. Two types of actions could be raised: a declarator of marriage to prove a marriage and a declarator of freedom and putting to silence to disprove a marriage.
On seaweed subalgebras and meander graphs in type D
Creators: name: Panyushev, Dmitri
name: Yakimova, Oksana
Publisher: name: arXiv
Year: 2017
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B08, 17B20

description: In 2000, Dergachev and Kirillov introduced subalgebras of "seaweed type" in $\mathfrak{gl}_n$ and computed their index using certain graphs, which we call type-${\sf A}$ meander graphs. Then the subalgebras of seaweed type, or just "seaweeds", have been defined by Panyushev (2001) for arbitrary reductive Lie algebras. Recently, a meander graph approach to computing the index in types ${\sf B}$ and ${\sf C}$ has been developed by the authors. In this article, we consider the most difficult and interesting case of type ${\sf D}$. Some new phenomena occurring here are related to the fact that the Dynkin diagram has a branching node.
description: 23 pages
A continuum model of skeletal muscle tissue with loss of activation
Creators: name: Giantesio, Giulia
name: Musesti, Alessandro
Publisher: name: arXiv
Year: 2017
Subjects: subject: Tissues and Organs (q-bio.TO)
subject: FOS: Biological sciences
subject: 74B20, 74L15

description: We present a continuum model for the mechanical behavior of the skeletal muscle tissue when its functionality is reduced due to aging. The loss of ability of activating is typical of the geriatric syndrome called sarcopenia. The material is described by a hyperelastic, polyconvex, transverse isotropic strain energy function. The three material parameters appearing in the energy are fitted by least square optimization on experimental data, while incompressibility is assumed through a Lagrange multiplier representing the hydrostatic pressure. The activation of the muscle fibers, which is related to the contraction of the sarcomere, is modeled by the so called active strain approach. The loss of performance of an elder muscle is then obtained by lowering of some percentage the active part of the stress. The model is implemented numerically and the obtained results are discussed and graphically represented.
The Gaia-ESO Survey: dynamics of ionized and neutral gas in the Lagoon nebula (M8)
Creators: name: Damiani, F.
name: Bonito, R.
name: Prisinzano, L.
name: Zwitter, T.
name: Bayo, A.
name: Kalari, V.
name: Jimenez-Esteban, F. M.
name: Costado, M. T.
name: Jofre, P.
name: Randich, S.
name: Flaccomio, E.
name: Lanzafame, A. C.
name: Lardo, C.
name: Morbidelli, L.
name: Zaggia, S.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a spectroscopic study of the dynamics of the ionized and neutral gas throughout the Lagoon nebula (M8), using VLT/FLAMES data from the Gaia-ESO Survey. We explore the connections between the nebular gas and the stellar population of the associated star cluster NGC6530. We characterize through spectral fitting emission lines of H-alpha, [N II] and [S II] doublets, [O III], and absorption lines of sodium D doublet, using data from the FLAMES/Giraffe and UVES spectrographs, on more than 1000 sightlines towards the entire face of the Lagoon nebula. Gas temperatures are derived from line-width comparisons, densities from the [S II] doublet ratio, and ionization parameter from H-alpha/[N II] ratio. Although doubly-peaked emission profiles are rarely found, line asymmetries often imply multiple velocity components along the line of sight. This is especially true for the sodium absorption, and for the [O III] lines. Spatial maps for density and ionization are derived, and compared to other known properties of the nebula and of its massive stars 9 Sgr, Herschel 36 and HD 165052 which are confirmed to provide most of the ionizing flux. The detailed velocity fields across the nebula show several expanding shells, related to the cluster NGC6530, the O stars 9 Sgr and Herschel 36, and the massive protostar M8East-IR. The origins of kinematical expansion and ionization of the NGC6530 shell appear to be different. We are able to put constrains on the line-of-sight (relative or absolute) distances between some of these objects and the molecular cloud. The large obscuring band running through the middle of the nebula is being compressed by both sides, which might explain its enhanced density. We also find an unexplained large-scale velocity gradient across the entire nebula. At larger distances, the transition from ionized to neutral gas is studied using the sodium lines.
description: 26 pages, 31 figures, accepted on Astronomy and Astrophysics journal
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1787

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Improved Algorithms for Computing the Cycle of Minimum Cost-to-Time Ratio in Directed Graphs
Creators: name: Bringmann, Karl
name: Hansen, Thomas Dueholm
name: Krinninger, Sebastian
Publisher: name: arXiv
Year: 2017
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We study the problem of finding the cycle of minimum cost-to-time ratio in a directed graph with $ n $ nodes and $ m $ edges. This problem has a long history in combinatorial optimization and has recently seen interesting applications in the context of quantitative verification. We focus on strongly polynomial algorithms to cover the use-case where the weights are relatively large compared to the size of the graph. Our main result is an algorithm with running time $ \tilde O (m^{3/4} n^{3/2}) $, which gives the first improvement over Megiddo's $ \tilde O (n^3) $ algorithm [JACM'83] for sparse graphs. We further demonstrate how to obtain both an algorithm with running time $ n^3 / 2^{Ω{(\sqrt{\log n})}} $ on general graphs and an algorithm with running time $ \tilde O (n) $ on constant treewidth graphs. To obtain our main result, we develop a parallel algorithm for negative cycle detection and single-source shortest paths that might be of independent interest.
description: Accepted to the 44th International Colloquium on Automata, Languages, and Programming (ICALP 2017)
Secure Transmissions Using Artificial Noise in MIMO Wiretap Interference Channel: A Game Theoretic Approach
Creators: name: Siyari, Peyman
name: Krunz, Marwan
name: Nguyen, Diep N.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Information Theory (cs.IT)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: We consider joint optimization of artificial noise (AN) and information signals in a MIMO wiretap interference network, wherein the transmission of each link may be overheard by several MIMO-capable eavesdroppers. Each information signal is accompanied with AN, generated by the same user to confuse nearby eavesdroppers. Using a noncooperative game, a distributed optimization mechanism is proposed to maximize the secrecy rate of each link. The decision variables here are the covariance matrices for the information signals and ANs. However, the nonconvexity of each link's optimization problem (i.e., best response) makes conventional convex games inapplicable, even to find whether a Nash Equilibrium (NE) exists. To tackle this issue, we analyze the proposed game using a relaxed equilibrium concept, called quasi-Nash equilibrium (QNE). Under a constraint qualification condition for each player's problem, the set of QNEs includes the NE of the proposed game. We also derive the conditions for the existence and uniqueness of the resulting QNE. It turns out that the uniqueness conditions are too restrictive, and do not always hold in typical network scenarios. Thus, the proposed game often has multiple QNEs, and convergence to a QNE is not always guaranteed. To overcome these issues, we modify the utility functions of the players by adding several specific terms to each utility function. The modified game converges to a QNE even when multiple QNEs exist. Furthermore, players have the ability to select a desired QNE that optimizes a given social objective (e.g., sum-rate or secrecy sum-rate). Depending on the chosen objective, the amount of signaling overhead as well as the performance of resulting QNE can be controlled. Simulations show that due to the QNE selection mechanism, we can achieve a significant improvement in terms of secrecy sum-rate and power efficiency.
description: 36 pages, 8 figures
Isotope effect on filament dynamics in fusion edge plasmas
Creators: name: Meyer, Ole Hauke Heinz
name: Kendl, Alexander
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The influence of the ion mass on filament propagation in the scrape-off layer of toroidal magnetised plasmas is analysed for various fusion relevant majority species, like hydrogen isotopes and helium, on the basis of a computational isothermal gyrofluid model for the plasma edge. Heavy hydrogen isotope plasmas show slower outward filament propagation and thus improved confinement properties compared to light isotope plasmas, regardless of collisionality regimes. Similarly, filaments in fully ionised helium move more slowly than in deutrium. Different mass effects on the filament inertia through polarisation, finite Larmor radius, and parallel dynamics are identified.
Nonlinear cavity optomechanics with nanomechanical thermal fluctuations
Creators: name: Leijssen, Rick
name: La Gala, Giada
name: Freisem, Lars
name: Muhonen, Juha T.
name: Verhagen, Ewold
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The inherently nonlinear interaction between light and motion in cavity optomechanical systems has experimentally been studied in a linearized description in all except highly driven cases. Here we demonstrate a nanoscale optomechanical system, in which the interaction between light and motion is so large (single-photon cooperativity $C_0 \approx 10^3$) that thermal motion induces optical frequency fluctuations larger than the intrinsic optical linewidth. The system thereby operates in a fully nonlinear regime, which pronouncedly impacts the optical response, displacement measurement, and radiation pressure backaction. Experiments show that the apparent optical linewidth is dominated by thermomechanically-induced frequency fluctuations over a wide temperature range. The nonlinearity induces breakdown of the traditional cavity optomechanical descriptions of thermal displacement measurements. Moreover, we explore how radiation pressure backaction in this regime affects the mechanical fluctuation spectra. The strong nonlinearity could serve as a resource to control the motional state of the resonator. We demonstrate the use of highly nonlinear transduction to perform a quadratic measurement of position while suppressing linear transduction.
description: 26 pages, 10 figures
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1791

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog
Brief an Johann III Bernoulli
Creators: name: Kästner, Abraham Gotthelf
Publisher: name: [s.n.]
Year: 1783

description: von [Abraham Gotthelf] Kästner
description: Öffentliche Bibliothek der Universität Basel
description: Französisch
description: Druck: Archiv zur neueren Geschichte, hg. von Bernoulli, 5, 1786, 85
description: Verzeichnung=Description=Inventaire Dezember 2014 HAN-Katalogisierungsregeln Vollständige Rekatalogisierung nach Standortverzeichnis und Briefkatalog