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Natural Intelligence in Artificial Creatures

What mechanisms are needed in a cognitive system, such as an animal or a robot, and how do these mechanisms interact with each other? The thesis presents a study of this problem within the field of behavior-based systems and artificial neural networks. The thesis brings together ideas from behavior-based robotics, control theory and machine learning and combines them with models from ethology, ps

A customizable pattern-based software process simulation model: design, calibration and application

Software process analysis and improvement relies heavily on empirical research. Empirical research requires measurement, experimentation, and modeling. However, whatever evidence is gained via empirical research is strongly context dependent. Thus, it is hard to combine results and capitalize upon them for the purpose of improvement in evolving development environments. The process simulationmodel

Multiple window coherence analysis of HRV power and respiratory frequency

In this paper, we evaluate the correlation estimate, based on multiple window spectrum analysis, between the respiratory center frequency and the high-frequency band of the heart- rate variability (HRV) power. One aim is to examine whether a more restricted frequency range would better capture respiratory related HR variation, especially when the HR variation is changing rapidly. The respiratory p

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Chaos in the chaos research: Reply to Stig Welinder, who commented in META 1989: 4 on the article Jes Wienberg, "Kaos i tiden", META 1989: 3

Application of automated video analysis to road user behaviour

The successful planning, design and management of a traffic system is impossible without knowledge of how the traffic environment affects the behaviour of road users and how the behaviour is related to the main qualities of the traffic system (e.g. safety, efficiency). Automated video analysis is a promising tool for traffic behaviour research in that it enables collection of micro-level behaviour

A new de-airing technique that reduces systemic microemboli during open surgery: a prospective controlled study.

OBJECTIVE: We have evaluated a new technique of cardiac de-airing that is aimed at a) minimizing air from entering into the pulmonary veins by opening both pleurae and allowing lungs to collapse and b) flushing out residual air from the lungs by staged cardiac filling and lung ventilation. These air emboli are usually trapped in the pulmonary veins and may lead to ventricular dysfunction, life-thr

Downstream effects of master regulators in two brain diseases.

In paper one, we investigated how the pharmacological activation and inhibition of the glucocorticoid system affects lifespan and symptoms in a mouse model for RTT. We performed a long-term drug treatment study with the GR activator corticosterone and the GR inhibitor RU486 under which we measured the lifespan and onset of RTT-like symptoms of male Mecp2-null and female Mecp2 heterozygous mice in