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Stability in presence of bounded uncertain time-varying time delays in the feedback loop of a system is studied. The stability problem is treated in the Integral Quadratic Constraint (IQC) framework. The stability criterion is formulated as frequency dependent linear matrix inequalities. The criterion can be equivalently formulated as a Semi-Definite Program (SDP) using Kalman-Yakubovich-Popov lem
Gestures are prevalent in communication and tightly linked to language and speech. As such they can shed important light on issues of language development across the lifespan. This volume, originally published as a Special Issue of Gesture 8:2 (2008), brings together studies from different disciplines that examine language development in children and adults from varying perspectives. It provides a
Abstract in UndeterminedThe importance of computer learner corpora for research in both second language acquisition and foreign language teaching is rapidly increasing. Computer learner corpora can provide us with data to describe the learner's interlanguage system at different points of its development and they can be used to create pedagogical tools.In this paper, we first present a new computer
This paper presents the results from qualitative studies done on leading edge companies in Supply/Demand Chain Management in Sweden. The aim of the study is to create a knowledge base, identify the Network Integrators, and with reference to previous studies conducted in the packaging industry, analyse the development for packaging suppliers.
The main purpose of this dissertation is to describe how terminally ill patients experienced their situation, and what their views about the future were. Further, the experiences and attitudes of relatives of such patients, and of health care professionals, were also central. Focus was on existential issues, such as autonomy, meaning, guilt, relations, dignity, and communication. In the first pape
Förord till den svenska översättningen av John Dewey "Human Nature and Conduct".
Ventilated and rendered rain-screen cladding (VRRC) systems are increasingly used in refurbishment of existing and construction of new buildings. Knowledge concerning different VRRC systems’ ability to withstand tensile cracking is however limited and critical levels of thermal or moist induced loads seldom stated in a quantitative way. The research presented in this paper deals with tensile crack
We show that the common claim that internal validity should be understood as prior to external validity has, at least, three epistemologically problematic aspects: experimental artefacts, the implications of causal relations, and how the mechanism is measured. Each aspect demonstrates how important external validity is for the internal validity of the experimental result.
