Popular Abstract in Swedish Livets minsta beståndsdel, cellen, omges av ett membran som avgränsar den från omvärlden. För att hålla den inre miljön kontrollerad måste cellen kunna styra transporten av olika ämnen över membranet, vilket görs med hjälp av olika proteiner. Dessa proteiner kan antingen vara energikrävande pumpar och transportörer som aktivt förflyttar substanser över membranet, eller Major Intrinsic Proteins (MIPs, also called Aquaporins, AQPs) are channel forming membrane proteins. Although initially functionally characterized and named after their water channeling property in human red blood cells, it has become increasingly evident that MIPs are present in all types of organisms and transport a variety of small, uncharged molecules besides water. MIPs have a highly conserve

A new VLSI architecture for a real-time pipeline FFT processor is proposed. A hardware-oriented radix-22 algorithm is derived by integrating a twiddle factor decomposition technique in the divide-and-conquer approach. The radix-22 algorithm has the same multiplicative complexity as the radix-4 algorithm, but retains the butterfly structure of the radix-2 algorithm. The single-path delay-feedback a

Abstract When a child is hospitalized, the parents find themselves in an unfamiliar environment and their parental role changes. They are in a stressful and often anxiety-filled situation and it may be difficult for them to participate in decisions. The purpose of this study was to examine the extent to which parents participate in decisions during the course of events when their child is hospital

In controller design, not only set-point tracking and disturbance rejection can be considered, also robustness towards process uncertainties is a key issue. In this paper, new robustness measures that divide uncertainties into dead time and non-dead time uncertainties, are presented. It is shown, to the contrary of classic measures such as phase/gain/dead time margins, to guarantee stability towar

This th esis is about management of equipment maintenance in maufactiring firms.

Popular Abstract in Swedish En halvledare är en kristall vars egenskaper till stor del bestäms av dess bandgap, som i någon mening kan ses som lägesenergin hos fria elektroner i kristallen. En kvantprick är en liten volym halvledarmaterial som är inbäddad i ett annat material med större bandgap. Det gör att volymen attraherar laddning eftersom elektroner (precis som allt annat) helst minimerar sinThis thesis presents spectroscopic studies of single self-assembled InP quantum dots (QDs). The electronic properties of these QDs have been studied by photoluminescence (PL) and scanning tunnelling luminescence (STL). The QDs were grown in the Stranski-Krastanow mode and were embedded in GaInP. This material is slightly n-type, giving a Fermi-level close to the conduction band edge at low temper

The number of adult bicycle helmet users in Sweden has stayed over the years relatively stable around 20 % [1]. In Europe the number of helmet users varies between 1 and 40 % depending on country. Research has shown that the use of helmet considerably diminishes head injuries in the case of traffic accidents [2]. In spite of that it is not fully clear what are the main factors why only a small num