2,216 research outputs found
Choose your own Adventure. Hypertextuelle Spiele-Comics als literar-ästhetischer Lerngegenstand
No full textMeier J-N. Choose your own Adventure. Hypertextuelle Spiele-Comics als literar-ästhetischer Lerngegenstand. In: Preußer U, Engelns M, Giesa F, eds. Comics in der Schule. Berlin: Bachmann; 2019: 259-277
JBendge: An Object-Oriented System for Solving, Estimating and Selecting Nonlinear Dynamic Models
No full textWe present an object-oriented software framework allowing to specify, solve, and estimate nonlinear dynamic general equilibrium (DSGE) models. The imple- mented solution methods for nding the unknown policy function are the standard linearization around the deterministic steady state, and a function iterator using a multivariate global Chebyshev polynomial approximation with the Smolyak op- erator to overcome the course of dimensionality. The operator is also useful for numerical integration and we use it for the integrals arising in rational expecta- tions and in nonlinear state space lters. The estimation step is done by a parallel Metropolis-Hastings (MH) algorithm, using a linear or nonlinear lter. Implemented are the Kalman, Extended Kalman, Particle, Smolyak Kalman, Smolyak Sum, and Smolyak Kalman Particle lters. The MH sampling step can be interactively moni- tored and controlled by sequence and statistics plots. The number of parallel threads can be adjusted to benet from multiprocessor environments. JBendge is based on the framework JStatCom, which provides a standardized ap- plication interface. All tasks are supported by an elaborate multi-threaded graphical user interface (GUI) with project management and data handling facilities.Dynamic Stochastic General Equilibrium (DSGE) Models, Bayesian Time Series Econometrics, Java, Software Development
Comics in der Schule. Theorie und Unterrichtspraxis
No full textEngelns M, Preußer U, Giesa F, eds. Comics in der Schule. Theorie und Unterrichtspraxis. Berlin: Christian A. Bachmann; 2020.Dep. geändert (vp, 2021-08-19
Musikstädte as real and imaginary soundscapes: urban musical images as literary motifs in twentieth-century German modernism
No full textPhDThis study examines German literary images of musical life as part of the wider sound identity of the modern German city at the turn of the twentieth century. Focussing on a forty-year period from 1890 to 1930, synonymous with the emergence of the modern German metropolis as an aesthetic object, the project assesses, compares and contrasts how musical life in the Musikstädte was perceived and portrayed by writers in an increasingly noisy urban environment. How does urban musical life influence and condition city writings? What are the differences and similarities between the writings on various musical cities? Can an urban textual sound identity be derived from these differences and similarities? The approach employed to answer these questions is a new, cross-disciplinary one to urban sound in literature, moving beyond reading the key sounds of the urban soundscape using urban musicology, sensorial anthropology and cultural poetics towards a literary contextualisation of the urban aural experience.
The literary motifs of the symphony, the gramophone and urban noise are put under the spotlight through the analysis of a wide range of modernist works by authors who have a special relationship with music. At the centre of this analysis are the Kaffeehausliteratur authors Hermann Bahr, Alfred Polgar and Peter Altenberg, the then Munich-based author Thomas Mann and the lesser known René Schickele. The analysis of these particular works is framed in the music-geographical context of the Musikstadt and literary underpinnings of this topos, ranging from Ingeborg Bachmann to Hans Mayer and, once again, Thomas Mann. In analysing these texts, the methodological approach devised by Strohm, who identifies the blending of a range of urban sounds as a definition of urban space and identity, is applied. His ideas combine historical literary
analysis, musical history and urban sociology. They are rarely used in the analysis of the auditory environment.Arts and Humanities Research Council
Westfield TrustWestfield Trust Studentship
Arts and Humanities Reseach Council (AHRC
Voltage-Gated Potassium Channels as Regulators of Cell Death
No full textIon channels allow the flux of specific ions across biological membranes, thereby determining ion homeostasis within the cells. Voltage-gated potassium-selective ion channels crucially contribute to the setting of the plasma membrane potential, to volume regulation and to the physiologically relevant modulation of intracellular potassium concentration. In turn, these factors affect cell cycle progression, proliferation and apoptosis. The present review summarizes our current knowledge about the involvement of various voltage-gated channels of the Kv family in the above processes and discusses the possibility of their pharmacological targeting in the context of cancer with special emphasis on Kv1.1, Kv1.3, Kv1.5, Kv2.1, Kv10.1, and Kv11.1
An Efficient Method for Performance Monitoring of Active Phased Array Antennas
No full textModern synthetic aperture radars (SARs) are equipped with active phased array antennas to electronically generate various antenna beams. The TerraSAR-X satellite is a high resolution SAR system launched in June 2007. Its active phased array X-band antenna hosts 384 transmit/receive modules (TRMs) for controlling the electronic beam steering in azimuth and elevation direction. The precise modeling of the antenna performance is only possible if the actual characteristics of each individual TRM are monitored. TerraSAR-X has been equipped with an innovative characterization mode based on a coding technique, which is the so-called pseudonoise gating method. The individual and simultaneous characterization of all TRMs is realized under most realistic conditions with power supply loads like in nominal radar operation. For the first time, this novel technique has been applied on a spaceborne SAR system
Bachmann – Lipski – Opel. Resztki języka
No full textThe article presents some new research findings concerning Leo Lipski’s life in view of previously unexplored archival materials. The author argues that German was the writer’s mother tongue and analyzes its significance in his literary works. Moreover, the article reconstructs Lipski’s links with the German-speaking world and demonstrates that it was Adolf Opel’s initiative to have Piotruś [Little Peter] translated into German. Furthermore, it was Opel who encouraged his partner, Ingeborg Bachmann, to take interest in Lipski’s works. On the basis of the latest research findings, the author also briefly discusses a set of Lipski’s surviving letters sent to the Austrian writer.Artykuł prezentuje szereg ustaleń badawczych na temat biografii Leo Lipskiego, poczynionych na podstawie kwerend niebadanych dotąd materiałów archiwalnych. Wskazuje na niemiecki jako język macierzysty pisarza, przyglądając się tekstowym funkcjonalizacjom tego problemu. Jednocześnie artykuł rekonstruuje związki Lipskiego z niemieckojęzycznym kręgiem kulturowym, udowadniając, że osobą, która bezpośrednio przyczyniła się do powstania niemieckiego przekładu Piotrusia, był Adolf Opel. To właśnie też Opel zainteresował pisarstwem Lipskiego swoją partnerkę, Ingeborg Bachmann. Powołując się na ostatnie odkrycia archiwalne, tekst pokrótce omawia zachowany zbiór listów, jakie Lipski wysłał do austriackiej pisarki
Explicit characterization of the super-replication strategy in financial markets with partial transaction costs
No full textWe consider a continuous time multivariate financial market with proportional transaction costs and study the problem of finding the minimal initial capital needed to hedge, without risk, European-type contingent claims. The model is similar to the one considered in Bouchard and Touzi (2000) except that some of the assets can be exchanged freely, i.e. without paying transaction costs. This is the so-called non-effcient friction case. To our knowledge, this is the first time that such a model is considered in a continuous time setting. In this context, we generalize the result of the above paper and prove that the super-replication price is given by the cost of the cheapest hedging strategy in which the number of non-freely exchangeable assets is kept constant over time.Transaction costs, hedging options, viscosity solutions
Integrable e-lements for Statistics Education
No full textWithout doubt modern education in statistics must involve practical, computer-based data analysis but the question arises whether and how computational elements should be integrated into the canon of methodological education. Should the student see and study high-level programming code right at the beginning of his or her studies? Which technology can be presented during class and which computational elements can re-occur (at increasing level of complexity) during the different courses? In this paper we address these questions and discuss where e-techniques have their limits in statistics education.electronic books, hypertext, e-supported teaching, statistical software
Relational Contracts and Job Design
No full textThis paper analyzes the problem of optimal job design when there is only one contractible and imperfect performance measure for all tasks whose contribution to firm value is non-veritable. I find that task splitting is optimal when relational contracts based on firm value are not feasible. By contrast, if an agent who performs a given set of tasks receives an implicit bonus, the principal always benefits from assigning an additional task to this agent.job design, multi-tasking, relational contracts
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