Centralmuseum rheinländischer Inschriften,

Mode of access: Internet.

Jahrbücher für Protestantische theologie unter mitwirkung von mitgliedern der theologischen facultäten zu Bern, Bonn ... und anderen namhaften gelehrten ...

Imprint varies.

Die gegenwartige landwirtschaftliche Betriebsweise im Landkreise Bonn unter Vergleichung mit der vor 50 Jahren ublich gewesenen, von Hartstein in seiner Statistisch-landwirtschaftlichen Topographie des Kreises Bonn beschriebenen Betriebsweise.

Thesis (doctoral)--Rheinische Friedrich-Wilhelms-Universitat zu Bonn.

Die Organisation des Kassiusstiftes in Bonn.

Thesis (doctoral)--Friedrich-Wilhelms-Universitat zu Bonn.

Anaximenea /

Vita.

Mitteilungen der Literarhistorischen Gesellschaft, Bonn,

Reprint of a periodical published in Bonn.

Holger Impekoven: Die Alexander von Humboldt-Stiftung und das Ausländerstudium in Deutschland 1925-1945, Von der „geräuschlosen Propaganda“ zur Ausbildung der „geistigen Wehr“ des „Neuen Europa“, Göttingen: Bonn University Press bei V&R unipress 2013 [Rezension]

Rezension von: Holger Impekoven: Die Alexander von Humboldt-Stiftung und das Ausländerstudium in Deutschland 1925-1945, Von der „geräuschlosen Propaganda“ zur Ausbildung der „geistigen Wehr“ des „Neuen Europa“, Göttingen: Bonn University Press bei V&R unipress 2013 (522 S.; ISBN 978-3-89971-869-0; 64,90 EUR)

A conditional retransmission enabled transport protocol for real-time networked control systems

Real-time networked control systems (NCSs) over data networks are being increasingly implemented on a massive scale in industrial applications. Along with this trend, wireless network technologies have been promoted for modern wireless NCSs (WNCSs). However, popular wireless network standards such as IEEE 802.11/15/16 are not designed for real-time communications. Key issues in real-time applications include limited transmission reliability and poor transmission delay performance. Considering the unique features of real-time control systems, this paper develops a conditional retransmission enabled transport protocol (CRETP) to improve the delay performance of the transmission control protocol (TCP) and also the reliability performance of the user datagram protocol (UDP) and its variants. Key features of the CRETP include a connectionless mechanism with acknowledgement (ACK), conditional retransmission and detection of ineffective data packets on the receiver side.

A requirements framework for semantic business process modelling

The emergence of semantic technologies to deal with the underlying meaning of things, instead of a purely syntactical representation, has led to new developments in various fields, including business process modeling. Inspired by artificial intelligence research, technologies for semantic Web services have been proposed and extended to process modeling. However, the applicablility of semantic Web services for semantic business processes is limited because business processes encompass wider requirements of business than Web services. In particular, processes are concerned with the composition of tasks, that is, in which order activities are carried out, regardless of their implementation details; resources assigned to carry out tasks, such as machinery, people, and goods; data exchange; and security and compliance concerns.

Reducing complexity of large EPCs

Business processes are an important instrument for understanding and improving how companies provide goods and services to customers. Therefore, many companies have documented their business processes well, often in the Event-driven Process Chains (EPC). Unfortunately, in many cases the resulting EPCs are rather complex, so that the overall process logic is hidden in low level process details. This paper proposes abstraction mechanisms for process models that aim to reduce their complexity, while keeping the overall process structure. We assume that functions are marked with efforts and splits are marked with probabilities. This information is used to separate important process parts from less important ones. Real world process models are used to validate the approach.

The Milky Way's Dark Matter Halo Appears To Be Lopsided

The atomic hydrogen gas (H I) disk in the outer region (beyond similar to 10 kpc from the center) of Milky Way can provide valuable information about the structure of the dark matter halo. The recent three-dimensional thickness map of the outer H I disk from the all sky 21 cm line Leiden/Argentine/Bonn survey, gives us a unique opportunity to investigate the structure of the dark matter halo of Milky Way in great detail. A striking feature of this new survey is the north-south (N-S) asymmetry in the thickness map of the atomic hydrogen gas. Assuming vertical hydrostatic equilibrium under the total potential of the Galaxy, we derive the model thickness map of the H I gas. We show that simple axisymmetric halo models, such as softened isothermal halo (producing a flat rotation curve with V-c similar to 220 km s(-1)) or any halo with density falling faster than the isothermal one, are not able to explain the observed radial variation of the gas thickness. We also show that such axisymmetric halos along with different H I velocity dispersion in the two halves, cannot explain the observed asymmetry in the thickness map. Amongst the nonaxisymmetric models, it is shown that a purely lopsided (m = 1, first harmonic) dark matter halo with reasonable H I velocity dispersion fails to explain the N-S asymmetry satisfactorily. However, we show that by superposing a second harmonic (m = 2) out of phase onto a purely lopsided halo, e. g., our best fit and more acceptable model A (with parameters epsilon(1)(h) = 0.2, epsilon(2)(h) = 0.18, and sigma(H I) = 8.5 km s(-1)) can provide an excellent fit to the observation and reproduce the N-S asymmetry naturally. The emerging picture of the asymmetric dark matter halo is supported by the. cold dark matter halos formed in the cosmological N-body simulation.

Reproduction of painting by Frieda Ruelf of Rabbi Dr. Isaac Ruelf Portraits; Men

Signed by the artist bottom right

[Draft for a Painting (St. Cyprien)].

This symbolic study of "St.Cyprien" concentration camp life done while Nussbaum was interned there in France. It is inscribed "Entwurf zu einem Gemälde" (Study for a painting) at lower left corner. It shows a group of men huddled around a globe or hunched in isolation against a desolate background of barren land and barbed wire. The drawing is one of the most artistically powerful and technically perfect in the collection.