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The problem of adaptive control is considered from a perspective of l2-gain. It has recently been shown that without an a priori bound on the system parameters, there exists no single dynamic feedback law that achieves bounded gain from disturbances to state for all first order linear systems. In this paper, a converse statement is proved for a standard adaptive scheme where the parameter estimate
This chapter introduces the basics of eye anatomy, eye movements and vision. It will explain the concepts behind human vision sufficiently for the reader to understand later chapters in the book on human perception and attention, and their relationship to (and potential measurement with) eye movements. We will first describe the path of light from the environment through the structures of the eye
This paper is concerned with two approaches to designing spaces for knowledge work. The central concern of the first approach is with the use of fictional descriptions of the workplace, in order to stimulate creative thought about new workspaces. The second approach draws on the emerging potential of three dimensional virtual reality as a tool to develop shared visions and to stimulate creativity.
Background: Chronic non-healing wounds present a substantial economic burden to healthcare system; significant reductions in quality of life for those affected, and precede often serious events such as limp amputations or even premature deaths. This burden is also likely to increase with a larger proportion of elderly and increasing prevalence of life-style diseases such as obesity and diabetes. R
LTRs of endogenous retroviruses are known to affect expression of several human genes, typically as a relatively minor alternative promoter. Here, we report that an endogenous retrovirus LTR acts as one of at least two alternative promoters for the human beta1,3-galactosyltransferase 5 gene, involved in type 1 Lewis antigen synthesis, and show that the LTR promoter is most active in the gastrointe
Thermally driven rotational and translational diffusion of proteins and other biomolecules is governed by frictional coupling to their solvent environment. Prediction of this coupling from biomolecular structures is a longstanding biophysical problem, which cannot be solved without knowledge of water dynamics in an interfacial region comparable to the dry protein in volume. Efficient algorithms ha
This paper examines the coordination of lip and tongue movements in sequences of vowel-bilabial consonant-vowel where the duration of the oral closure for the consonant is varied for linguistic purposes. Native speakers of Japanese served as subjects. The linguistic material consisted of Japanese word pairs that only differed in the duration of the labial consonant, which was either long or short.
Concerning epidemic diseases in history
Popular Abstract in Swedish Avhandlingen tar upp frågor om prästernas arbetsmiljö och deras roll och identitet. I inledningskapitlet framhölls att flera faktorer är viktiga för en undersökning om prästernas arbetsmiljö och för utformningen av prästrollen och prästidentiteten. Det omgivande samhället, de organisatoriska ramarna och de förväntningar som ställs på prästerna är några sådana faktorer, In this dissertation the work environment and the roles and identities of the clergy in the Church of Sweden are investigated. It is said in the first chapter that there are several factors influencing the work environment and that these factors are important for the formation of the roles and identities of the clergy. The surrounding society, the organization, and the expectations directed at the
The contribution of civil society to quality of government is important to evaluate. Civil society is often touted as means to enhance quality of government and parallel to this idea the sector grown has substantially over time. Does civil society actually contribute to quality of government, and does civil society involved in expressive- or service functions differ in this regard? This is a quant
