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Liquids under the influence of external fields exhibit a wide range of intriguing phenomena that can be markedly different from the behaviour of a quiescent system. This work considers two different systems - a glassforming Yukawa system and a colloid-polymer mixture - by Molecular Dynamics computer simulations. The former consists of a 50-50 binary mixture of differently-sized, like-charged colloids interacting via a screened Coulomb (Yukawa)...

The Doppler Effect is a well known physical phenomenon. Doppler's famous paper "Über das farbige Licht der Doppelsterne" was published as early as 1842. The relativistic effect was covered by Einstein's famous publication "Zur Elektrodynamik bewegter Körper" in 1905. Is it still possible to find new aspects of this subject? The approach from system theory used in this book is applied to the relativistic and the non-relativistic Doppler Effect....

Individuals influence each other's behavior in many ways. Previous research in economics focused predominantly on constraint, expectations, and preference interactions. However, many interdependencies of individual behavior are not easily put into one of these categories. This book presents a series of experiments designed to identify channels of interdependencies, namely social learning, social comparison and social interaction. The observed ...

Lighting is essential to modern society but it accounts for nearly 20 % of the electrical energy usage. Thus efforts to increase the conversion efficiencies of light sources are attracting more and more attention. Potential high efficiency light sources are fluorescent lamps or light-emitting diodes (LEDs). Modern LEDs show internal quantum efficiencies of virtually 100 %. However, in the case of standard LEDs most of this light is trapped ins...

Milchkühe weisen nach der Kalbung eine negative Energiebilanz auf, die in einem gewissen Ausmaß durch Abbau von Körperfettreserven ausgeglichen wird. Der Gesamtkörperfettgehalt korreliert in hohem Maße mit der Rückenfettdicke, die mittels Ultraschall gemessen werden kann. Der ständige Ab- und Aufbau von Fettgewebe von Laktation zu Laktation bildet die Grundlage der Gesunderhaltung und der Erzielung hoher Milchleistungen, kann aber auch der Aus...

Huntington's Disease (HD) and Multiple Sclerosis (MS) are both severe chronic diseases. In addition to the neurological problems, psychic symptoms are common and together with the steadily progressing course leading to increasing problems in activities of daily life and physical disability. Partnership problems and sexual dysfunction is often reported in chronic diseases but many physicians feel uncomfortable or inadequately trained to discuss...

Basierend auf dem kognitiv-motivationalen Prozessmodell von Vollmeyer und Rheinberg (1998) werden zwei Studien vorgestellt, die sich mit dem selbst regulierten Lernen mit Multimedia im Physikunterricht beschäftigen. Ziel der Pilotstudie war es, das Lernen im Schulalltag mit einem Physikprogramm am Computer zu untersuchen. Das kognitiv-motivationale Prozessmodell konnte in den meisten Teilen bestätigt werden: Die Eingangsmotivation, vor allem d...

Research on autonomous mobile robots or vehicles is one of the most seminal subjects at the moment. Economically leading nations like the USA and Japan have adopted it to one of their national research topics. The notion 'autonomous' here indicates that the robot should be capable of performing certain tasks without human interaction, in this case mobility tasks. Possible applications include deployment in case of natural disasters, driver ass...

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