Patrick Renner

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Oil pollution from various sources, including exploration, production and transportation, is a growing global concern. The highest toxicity of hydrocarbon pollutants is associated with the water-soluble phase compounds, including naphthenic acids, a known component found in all hydrocarbon deposits. Recently, naphthenic acids (NAs) have shown estrogenic and(More)
For validly analyzing human visual attention, it is often necessary to proceed from computer-based desktop set-ups to more natural real-world settings. However, the resulting loss of control has to be counterbalanced by increasing participant and/or item count. Together with the effort required to manually annotate the gaze-cursor videos recorded with(More)
Acetylcholinesterase (AChE) inhibitors are widely used as pesticides and drugs. Their primary effect is the overstimulation of cholinergic receptors which results in an improper muscular function. During vertebrate embryonic development nerve activity and intracellular downstream events are critical for the regulation of muscle fiber formation. Whether AChE(More)
Classic techniques for navigation and selection such as Image-Plane and World in Miniature have been around for more than 20 years. In the course of a seminar on interaction in virtual reality we reconsidered five methods for navigation and two for selection. These methods were significantly extended by the use of up-to-date hardware such as fingertracking(More)
Fish embryos are widely used as an alternative model to study toxicity in vertebrates. Due to their complexity, embryos are believed to more resemble an adult organism than in vitro cellular models. However, concerns have been raised with respect to the embryo's metabolic capacity. We recently identified allyl alcohol, an industrial chemical, to be several(More)
Software engineering is hampered by the fact that software systems quickly become so complex that they are hard to understand, evolve and maintain. Closer integration of code and model helps, because the model serves as a map to the code and the code fills in the details for the model. Simultaneously, one avoids consistency problems. TUBE, a programming(More)
With the launch of ultra-portable systems, mobile eye tracking finally has the potential to become mainstream. While eye movements on their own can already be used to identify human activities, such as reading or walking, linking eye movements to objects in the environment provides even deeper insights into human cognitive processing. We present a(More)
If robots are to successfully interact in a space shared with humans, they should learn the communicative signals humans use in face-to-face interactions. For example, a robot can consider human presence for grasping decisions using a representation of peripersonal space (Holthaus & Wachsmuth, 2012). During interaction, the eye gaze of the interlocutor(More)