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Increased understanding of membrane proteins is important for characterization of biochemical processes. Improved membrane protein isolation methods is a key issue for effective functional and structural determination of the large amount of unknown membrane proteins. In this thesis, a novel approach towards selective membrane protein purification is introduced. Polymer induced micelle extraction
This thesis explores the conditions to improve collaborative behaviour between organizations in crisis response management. It takes an explorative approach and begins by identifying several challenges to interorganizational collaboration. A systematic review of the international scientific literature in conjuction with semi-structured interviews with crisis management professionals in civil-milit
This paper presents a hardware design of an SVD based channel estimator. The details of the design are explained and some key aspects are discussed. The design has been implemented and tested on an FPGA and synthesized for an ASIC in 130 nm technology. It is shown that it is possible to get a clock frequency of 179 MHz for a 1.38 mm 2 design. This corresponds to ~30 M estimates per second, which i
This article presents the analysis of a large survey on file-sharing that was conducted in April 2011 with over 75,000 respondents from all over the world. The study, also known as The Research Bay, due to that it was conducted in collaboration with the infamous BitTorrent site The Pirate Bay, by the Cybernorms research group. The aim of the online study of The Pirate Bay community has been to des
This paper presents the hardware implementation of a wavelet based event detector for cardiac pacemakers. A high level energy estimation flow was applied to evaluate energy efficiency of standard-cell based designs, over several CMOS technology generations, from 180 to 65 nm, operated in the sub-threshold domain. The simulation results indicate a 65 nm low-leakage high-threshold (LL-HVT) CMOS tech
In general patterns of lifestyles and behaviour are involved in a complex of factors and social circumstances which easily get lost in analysing the relation between attitudes and behaviour separately. In processes where behaviour are expected to change in a direction where environmental impacts are considered social factors should not be neglected. Even small changes in behaviour have to be coord
An algorithm based on embedding phase space signal was developed by the authors in previous works. The algorithm detects the characteristic points of the waves of a multilead electroacardiogram (ECG). In the present work, the parameters of this algorithm are optimized to improve its performance. The algorithm uses 2 configurable parameters to obtain the phase spacethe dimension of the phase space
Popular Abstract in Swedish Nuklearmedicin bygger på användning av radioaktiva spårämnen, enligt principen av George de Hevesy, för kartläggning av global och regional funktion hos organ eller patologisk vävnad. Nuklearmedicin inkluderar även användningen av ”Magic bullet”-konceptet enligt Ehrlich där en molekyl används som bärare av radionuklider för att få en radiobiologisk terepeutisk effekt påNuclear medicine is based on the radiotracer principle of George de Hevesy and the magic bullet concept by Ehrlich and focuses on the diagnosis, the treatment of diseases and the investigation of normal states within the human body using radiopharmaceuticals. A radiopharmaceutical is an atom or a chemical compound in which one or several atoms are replaced with a radionuclide. Several diagnostic a
During my time as Director of Studies at the Municipal Music School of Lund, Sweden, I have had several discussions with teachers, students, parents, municipality civil servants, and politicians. I have concluded that in general, culture schools and music schools are looked upon as institutions where parents safely can send their children convinced about that they get a qualified education regardi
Natural product chemistry is a main research area in Cameroon, as well as for the division of Bioorganic Chemistry at Lund Institute of Technology. A review of the results obtained recently with Cameroonian medicinal plants shows that a large number of compounds, many with complex structures, have been isolated and characterised, and the work presented in this thesis is part of this effort. Based
In certain buildings such as synchrotrons and large ground telescopes, strict requirements are stated regarding the vibration levels. Both external and internal vibration sources, for example traffic and indoor water pumps, can have an appreciable effect on the vibration levels in the buildings. The synchrotron research facility MAX IV, which is currently under construction in Sweden, serves as an
The focus of this chapter is on musical agency in professional contexts and in Higher Music Education (HME). What is musical agency? How can musical agency be investigated, promoted, and developed? Cultural-historical activity theory approaches hold a potential for exploring and answering such questions with a dialectical perspective on creativity. Three examples of interventionist studies from a
Partial response signaling (PRS) codes with maximal minimum Euclidean distance have previously been found by linear programming. These perform very well in the narrowband-high energy region, but they were not optimized for minimal bit error rate (BER), so they are only optimal in the limit of infinite signal to noise ratio. Here we search for codes that perform better for more practical signal to
This study focuses on the fruit of the African medlar (Vangueria infausta L., family Rubiaceae). The investigation included the development of an extraction procedure of volatile components from the fruit matrix, a purification step, separation, identification and quantification. Initial experiments showed that some components, especially sugars, degrads during the heating in the GC analysis, prod
