The collisional drift wave instability in steep density gradient regimes

The collisional drift wave instability in a straight magnetic field configuration is studied within a full-F gyro-fluid model, which relaxes the Oberbeck-Boussinesq (OB) approximation. Accordingly, we focus our study on steep background density gradients. In this regime we report on corrections by factors of order one to the eigenvalue analysis of former OB approximated approaches as well as on spatially localised eigenfunctions, that contrast strongly with their OB approximated equivalent. Remarkably, non-modal phenomena arise for large density inhomogeneities and for all collisionalities. As a result, we find initial decay and non-modal growth of the free energy and radially localised and sheared growth patterns. The latter non-modal effect sustains even in the nonlinear regime in the form of radially localised turbulence or zonal flow amplitudes.Comment: accepted at Nuclear Fusio

Non-Oberbeck-Boussinesq zonal flow generation

Novel mechanisms for zonal flow (ZF) generation for both large relative density fluctuations and background density gradients are presented. In this non-Oberbeck-Boussinesq (NOB) regime ZFs are driven by the Favre stress, the large fluctuation extension of the Reynolds stress, and by background density gradient and radial particle flux dominated terms. Simulations of a nonlinear full-F gyro-fluid model confirm the predicted mechanism for radial ZF propagation and show the significance of the NOB ZF terms for either large relative density fluctuation levels or steep background density gradients

Projection methods and scenarios for public and private pension information

Public pensions - the primary pillar of old-age income provision - will, in the future, be less generous than they have been in the past, in particular owing to the impact of demographic change. The pension gap is supposed to be plugged by the second and third pillars of pension provision. However, people require reliable planning information if they are to exercise greater individual responsibility. It is therefore absolutely essential that adequate information is made available about the level of pension benefits that will be generated by each pillar of old-age pension provision. This paper outlines a number of different means of presenting the level of future pensions and the assumptions on which such extrapolations are necessarily based. Our work is based on an assumed average rate of inflation of 1.5% and an average rate of real income growth not exceeding 1.5%. This last figure is derived from calculations made in the framework of a macroeconomic simulation model. This model also shows that while the funded pillar of old-age pension provision is not entirely immune to population aging, it is not substantially threatened by a substantial decrease in stock market prices, the so-called "asset meltdown".

Projection methods and scenarios for public and private pension information

Public pensions – the primary pillar of old-age income provision – will, in the future, be less generous than they have been in the past, in particular owing to the impact of demographic change. The pension gap is supposed to be plugged by the second and third pillars of pension provision. However, people require reliable planning information if they are to exercise greater individual responsibility. It is therefore absolutely essential that adequate information is made available about the level of pension benefits that will be generated by each pillar of old-age pension provision. This paper outlines a number of different means of presenting the level of future pensions and the assumptions on which such extrapolations are necessarily based. Our work is based on an assumed average rate of inflation of 1.5% and an average rate of real income growth not exceeding 1.5%. This last figure is derived from calculations made in the framework of a macroeconomic simulation model. This model also shows that while the funded pillar of oldage pension provision is not entirely immune to population aging, it is not substantially threatened by a substantial decrease in stock market prices, the so-called “asset meltdown”.

First performance measurements with the Analysis Grand Challenge

The IRIS-HEP Analysis Grand Challenge (AGC) is designed to be a realistic environment for investigating how analysis methods scale to the demands of the HL-LHC. The analysis task is based on publicly available Open Data and allows for comparing the usability and performance of different approaches and implementations. It includes all relevant workflow aspects from data delivery to statistical inference. The reference implementation for the AGC analysis task is heavily based on tools from the HEP Python ecosystem. It makes use of novel pieces of cyberinfrastructure and modern analysis facilities in order to address the data processing challenges of the HL-LHC. This contribution compares multiple different analysis implementations and studies their performance. Differences between the implementations include the use of multiple data delivery mechanisms and caching setups for the analysis facilities under investigation.Comment: Submitted as proceedings for 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research (ACAT 2022) to Journal Of Physics: Conference Serie

Controlling in virtuellen Unternehmen -eine Studie- Teil 1: State of the art

Im Rahmen dieser Studie die vom VDMA Bayern unterstützt wird, wurde der Fragestellung der Kooperationen kleiner und mittlerer Unternehmen (KMU) in Netzwerken, Verbänden, Interessensgemeinschaften oder virtueller Unternehmen hinsichtlich der Umsetzung strategischer Geschäftsideen, wie z.B. der Erschließung neuer Märkte, aber auch der Steuerung der Kooperationen im operativen Geschäft, nachgegangen. Globalisierung bedeutet: Konzentration im Konzernbereich, dem die KMU's wirksam nur durch Kooperationen begegnen können. Diese Kooperationen sind im operativen Geschäft erfolgreich auf dem Weg. Wie messbar erfolgreich sie sind, soll mit dieser Studie erforscht werden. Im ersten Teil wird durch intensive Recherche und Analyse des State of the Art die theoretische und praktische Basis für dieses Projekt geschaffen und hier insbesondere die Kooperationsform eines virtuellen Unternehmens analysiert.In the context of this study by the VDMA Bavaria one supports, the question of cooperation of small and middle enterprises (SME) in networks, federations, interest communities or virtual enterprises regarding the conversion of strategic business ideas, like e.g. the development of new markets, in addition, the controlling of co-operation in the operational business one follows. Globalization means: Concentration in the company, which the SME's can meet effectively only by co-operation. These cooperation are successful in the operational business on the way. How measurably successful they are, is to be investigated with this study. In the first part by intensive search and analysis of the State of the art the theoretical and practical basis for this project is created

Controlling in virtuellen Unternehmen -eine Studie- Teil 2: Auswertung

Im Rahmen der Controllingstudie, die vom VDMA Bayern unterstützt wird, wurde der Fragestellung der Kooperationen kleiner und mittlerer Unternehmen (KMU) in Netzwerken, Verbänden, Interessensgemeinschaften oder virtueller Unternehmen hinsichtlich der Umsetzung strategischer Geschäftsideen, wie z.B. der Erschließung neuer Märkte, aber auch der Steuerung der Kooperationen im operativen Geschäft und der Erfolgssteuerung mittels unterschiedlichster Controllinginstrumente nachgegangen. Dieser Beitrag beinhaltet nun die Auswertung der Studie und gibt einen Ausblick auf das weitere Forschungsvorhaben.In the context of this study by the VDMA Bavaria one supports, the question of cooperation of small and middle enterprises (SME) in networks, federations, interest communities or virtual enterprises regarding the conversion of strategic business ideas, like e.g. the development of new markets, in addition, the controlling of co-operation in the operational business one follows. This contribution contains the evaluation of the study and gives an outlook on the further research project

Pad\'e-based arbitrary wavelength polarization closures for full-F gyro-kinetic and -fluid models

We propose a solution to the long-standing short wavelength polarization closure shortfall of full-F gyro-fluid models. This is achieved by first finding an appropriate quadratic form of the gyro-fluid moment over the polarization part of the gyro-center Hamiltonian. Secondly, we deduce Pad\'e-based approximations to the latter expression that produce a polarization charge density with the desired order of accuracy and retain linear polarization effects for arbitrary wavelengths. The proposed closures feature proper energy conservation and the anticipated Oberbeck-Boussinesq and long wavelength limits

Explizite Konnexion der Argumentation in den Wahlprogrammen deutscher und italienischer Parteien am Beispiel der kausalen Konnektoren weil und perché

The present PhD Dissertation deals with the linguistic study of the different ways in which the German and Italian connectives Weil and perché are used to express explicitly causal relations between sentences within argumentative political texts, more precisely within election programmes of different German and Italian parties. The descriptive analysis aims at individuating differences and similarities between both speech communities regarding the application of the mentioned connectives in political contexts which reflect cultural peculiarities of both nations. The first, theoretic part of the thesis pursues the objective to define political text and argumentation in a contemporary and for the analysis useful way. It presents an overview on the historical evolution and conceptualization of what we understand as a political text and its main characteristics from a rhetorical, terminology research and text linguistical point of view. Thereon the necessary theoretical assumptions will be compiled to define the concept of argumentation as well as the language tools that are involved in the expression of argumentation. The empiric part of the thesis finally deals with the contrastive analysis of the causal connectives in German and Italian election programmes investigating especially the following aspects: a) syntactical position, b) morphology of the connected expressions and c) argumentative strength

Hochrechnungsmethoden und Szenarien für gesetzliche und private Renteninformationen

Die gesetzliche Rente als erste Säule der Alterssicherung wird besonders wegen des demographischen Wandels künftig weniger großzügig ausfallen als bisher. Die entstehende Versorgungslücke soll durch die zweite und dritte Säule der Alterssicherung gefüllt werden. Um dieser Eigenverantwortung erfolgreich gerecht zu werden, ist für den Einzelnen eine verlässliche Planungsgrundlage notwendig. Ausreichende Informationen über die Höhe der künftigen Rentenzahlungen aus allen Säulen der Altersvorsorge sind daher unabdingbar. Dieser Beitrag stellt verschiedene Darstellungsmöglichkeiten künftiger Rentenzahlungen und die zur Hochrechnung erforderlichen Annahmen vor. Wir gehen von einer durchschnittlichen Inflationsrate von 1,5% sowie einer durchschnittlichen realen Lohnwachstumsrate von maximal 1,5% aus. Letztere resultiert aus Berechnungen im Rahmen eines gesamtwirtschaftlichen Simulationsmodells. Dieses Modell zeigt auch, dass die kapitalgedeckte Säule der Alterssicherung nicht immun gegen die Bevölkerungsalterung ist, aber auch nicht in ihrer Substanz von einem Kapitalmarktcrash (dem so genannten "Asset Meltdown") bedroht ist