Essays on robust long memory inference

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Trapping of Ultracold Atoms in a Hollow-core Photonic Crystal Fiber

Ultracold sodium atoms have been trapped inside a hollow-core optical fiber. The atoms are transferred from a free space optical dipole trap into a trap formed by a red-detuned gaussian light mode confined to the core of the fiber. We show that at least 5% of the atoms held initially in the free space trap can be loaded into the core of the fiber and retrieved outside.Comment: 4 pages, 3 figures, corrected author list, added refs, changed figs, changed content, accepted by PR

Integrationsangebote in ausgewählten hessischen Kommunen und ihre institutionelle Umsetzung: Studie zur instituitonellen Umsetzung von Integrationsangeboten mit Migranten auf der kommunalen Ebene am Beispiel von elf ausgewählten hessischen Kommunen

In dem Arbeitspapier werden die elf Kommunen Frankfurt am Main, Darmstadt, Wiesbaden, Offenbach am Main, Marburg, Wetzlar, Limburg, Landkreis Offenbach, Rodgar, Lollar und Hofgeismar auf die Migrationssituation untersucht. Die Beschreibung der bestehenden Integrationsmaßnahmen und die Konzepte und Maßnahmen zur Koordination in den Kommunen werden erläutert sowie die Integration auf kommunaler Ebene. (Redaktion USB Köln

Evangelistic Performance in New Zealand: The Word and What is Not Said

In 1518, Martin Luther is reputed to have nailed his 95 theses to the door of the Castle Church at Wittenberg, an act that sparked the Protestant Reformation. Luther sought change in the Catholic Church: a return to an unmediated relationship with God based on a closer understanding of the Word. Since then, Protestant evangelism has been a force for social change: and this is particularly true in New Zealand, where evangelism has gone hand in hand with the colonisation of the country. This thesis proposes that it is not, in fact, the literal understanding of the Word that gives these services meaning, and that such an understanding is problematic and perhaps even impossible: the Word is always a translation. Instead, it is through what is not said - the performative aspects of evangelistic services, including the use of space, the actions of the evangelist, and pre-existing cultural “horizons of expectation” - that meanings are produced. Taking as material Samuel Marsden’s first service in New Zealand in 1814, in which the Word was preached in English to a congregation who primarily spoke only Maori, the more contemporary example of televangelist Benny Hinn, who performs miracles to television cameras, and the religious and political performances of Destiny Church’s Brian Tamaki, this thesis uses the tools of performance studies to undertake an ethnographic study of evangelistic services. This brings into focus the ways in which evangelists may create congregations and produce meanings in their services through different modes of performance and the ways in which these ulterior meanings impact, and have impacted, on New Zealand society

Problemas de contorno de la geodesia física

Capítulo publicado en el "IV Curso de Geodesia superior", págs. 37-96, y como trabajo monográfico en la publicación del Instituto de Astronomía y Geodesia.1. Introducción 2. Planteamiento clásico 2.1. Problema de Molodensky o problema gravimétrico vectorial 2.2. Linealización 2.3. Aproximación esférica 2.4. Reducciones al elipsoide y el problema del Geoide 3. Solución de los problemas de contorno sobre la esfera 3.1. Introducción a la teoria de armónicos esféricos. 3.2. Problema de Dirichlet 3.3. Problema de Hotine 4.3. Problema de Stokes 4. Teoria del truncamiento con optimización para la fórmula de Stokes 5. Problema gravimétrico escalar y problema gravimétrico con contorno fijo 6. Problemas de Altimetría-GravimetríaPeer reviewe

Intermedin Stabilized Endothelial Barrier Function and Attenuated Ventilator-induced Lung Injury in Mice

Background: Even protective ventilation may aggravate or induce lung failure, particularly in preinjured lungs. Thus, new adjuvant pharmacologic strategies are needed to minimize ventilator-induced lung injury (VILI). Intermedin/Adrenomedullin-2 (IMD) stabilized pulmonary endothelial barrier function in vitro. We hypothesized that IMD may attenuate VILIassociated lung permeability in vivo. Methodology/Principal Findings: Human pulmonary microvascular endothelial cell (HPMVEC) monolayers were incubated with IMD, and transcellular electrical resistance was measured to quantify endothelial barrier function. Expression and localization of endogenous pulmonary IMD, and its receptor complexes composed of calcitonin receptor-like receptor (CRLR) and receptor activity-modifying proteins (RAMPs) 1–3 were analyzed by qRT-PCR and immunofluorescence in non ventilated mouse lungs and in lungs ventilated for 6 h. In untreated and IMD treated mice, lung permeability, pulmonary leukocyte recruitment and cytokine levels were assessed after mechanical ventilation. Further, the impact of IMD on pulmonary vasoconstriction was investigated in precision cut lung slices (PCLS) and in isolated perfused and ventilated mouse lungs. IMD stabilized endothelial barrier function in HPMVECs. Mechanical ventilation reduced the expression of RAMP3, but not of IMD, CRLR, and RAMP1 and 2. Mechanical ventilation induced lung hyperpermeability, which was ameliorated by IMD treatment. Oxygenation was not improved by IMD, which may be attributed to impaired hypoxi

Thermally Activated Delayed Fluorescence in a Y3N@C80 Endohedral Fullerene: Time-Resolved Luminescence and EPR Studies

The endohedral fullerene Y3N@C80 exhibits luminescence with reasonable quantum yield and extraordinary long lifetime. By variable-temperature steady-state and time-resolved luminescence spectroscopy, it is demonstrated that above 60 K the Y3N@C80 exhibits thermally activated delayed fluorescence with maximum emission at 120 K and a negligible prompt fluorescence. Below 60 K, a phosphorescence with a lifetime of 192±1 ms is observed. Spin distribution and dynamics in the triplet excited state is investigated with X- and W-band EPR and ENDOR spectroscopies and DFT computations. Finally, electroluminescence of the Y3N@C80/PFO film is demonstrated opening the possibility for red-emitting fullerene-based organic light-emitting diodes (OLEDs)

Rapid fabrication and interface structure of highly faceted epitaxial Ni-Au solid solution nanoparticles on sapphire

Supersaturated Ni-Au solid solution particles were synthesized by rapid solid-state dewetting of bilayer thin films deposited onto c-plane sapphire single-crystals. Rapid thermal annealing above the miscibility gap of the Ni-Au system followed by quenching to room temperature resulted in textured and faceted submicron-sized particles as a function of alloying content in the range of 0-28 at% Au. Morphologically, the observed kinetic crystal shapes are confined by close-packed planes; in addition, high-index facets are identified as a function of alloying content by TEM cross-sectioning and equilibrium crystal shape simulations. All samples exhibit a distinct out-of-plane as well as in-plane texture along densely packed directions. Lattice parameters extracted from independent orthogonal X-ray and electron diffraction techniques prove the formation of a solid solution without tetragonal distortion imposed by the sapphire substrate. At the particle-substrate interface of highly alloyed particles segregation of Au atoms as well as dislocations in stand-off position are found. These observations are in-line with a semi-coherent interface, where Au segregation is triggered by the reduction of the overall strain energy due to: (i) a lower shear modulus on the particle side of the interface, (ii) the shifting of misfit dislocations in stand-off position further away from the stiffer substrate and (iii) a reduction of intrinsic misfit dislocation strain energy on the tensile side. In addition, the mechanical properties of pure and alloyed particles were characterized by in situ compression experiments in the SEM. Typical force-displacement data of defect-free single-crystals were obtained, reaching the theoretical strength of Ni for particles smaller than 400 nm. Alloying changes the mechanical response from an intermittent and discrete plastic flow behavior into a homogeneous deformation regime at large compressive strain

Matrix theory of gravitation

A new classical theory of gravitation within the framework of general relativity is presented. It is based on a matrix formulation of four-dimensional Riemann-spaces and uses no artificial fields or adjustable parameters. The geometrical stress-energy tensor is derived from a matrix-trace Lagrangian, which is not equivalent to the curvature scalar R. To enable a direct comparison with the Einstein-theory a tetrad formalism is utilized, which shows similarities to teleparallel gravitation theories, but uses complex tetrads. Matrix theory might solve a 27-year-old, fundamental problem of those theories (sec. 4.1). For the standard test cases (PPN scheme, Schwarzschild-solution) no differences to the Einstein-theory are found. However, the matrix theory exhibits novel, interesting vacuum solutions.Comment: 24 page

Investigation of Beam Impedance and Heat Load in a High Temperature Superconducting Undulator

The use of high temperature superconducting (HTS) materials can enhance the performance of superconducting undulators (SCU), which can later be implemented in free electron laser facilities, synchrotron storage rings and light sources. In particular, the short period < 10 mm undulators with narrow magnetic gap < 4 mm are relevant. One of the promising approaches considers a 10 cm meander-structured HTS tapes stacked one above the other. Then, the HTS tape is wound on the SCU. The idea of this jointless undulator has been proposed by, and is being further developed at KIT. Since minimizing the different sources of heat load is a critical issue for all SCUs, a detailed analysis of the impedance and heat load is required to meet the cryogenic system design. The dominant heat source is anticipated to be the resistive surface loss, which is one of the subjects of this study. Considering the complexity of the HTS tape, the impedance model includes the geometrical structure of the HTS tapes as well as the anomalous skin effect. The results of the numerical investigation performed by the help of the CST PS solver will be presented and discussed