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A crucial step in many biochemical studies is the separation and purification of the individual structures of interest. For cells, cell organelles, and membrane fragments, the use of aqueous two-phase partition has become an important tool. The basis for separation in these phase systems is the surface properties of the material, and the method, therefore, nicely complements the more traditional c
Popular Abstract in Swedish Av pedagogiska skäl har anförts att det finns behov av mer kunskaper om människans tänkande om och förhållningssätt till munhälsa och tandvård. Syftet med denna undersökning var att undersöka och beskriva vuxna människors subjektiva tänkande om och förhållningssätt till munhälsa för att belysa faktorer som bidrar till eller utgör hinder för förändring av handlingsberedsThe need, for health educational reasons, of obtaining a more adequate understanding of how people think and act in connection with questions of dental health and professional dental care has been emphasized. The present study examines the attitudes and conceptions of adult individuals regarding their own dental health, as well as measures they take to further it. The aim is to elucidate factors t
A new method for extraction of general features in ECGs with atrial tachyarrhythmias is presented. The method is based on our recent method for atrial signal characterization which sequentially decomposes a time-frequency distribution into a set of parameters. In addition to rate and amplitude, the method tracks information on regularity, waveform, and structure of the atrial signal. The proposed
This paper introduces a research project with the aim to develop concepts and tools for architectural design, taking the ideas of "behaviour settings" as a starting point, to enable a more relevant holistic view in object oriented design of buildings. In this paper we introduce the concept of "architectural object" as a representation of a real "situation" involving people, behaviour, experience a
This is the third annual report of the Swedish Butterfly Monitoring Scheme, a national monitoring programme coordinated by Lund University for the Swedish Environmental Protection Agency since 2010. The programme is a partnership between the Entomological Society of Sweden, the Swedish Environmental Protection Agency, Lund University, the Swedish University of Agricultural Sciences and the Swedish
People who have visual impairments may have difficulties navigating freely and without personal assistance, and some are even afraid to go out alone. Current navigation devices with non-visual feedback are quite expensive, few, and are in general focused on routing and target finding. We have developed a test prototype application running on the Android platform in which a user may scan for map in
The interaction between DNA and cationic cosolutes- multivalent ions, cationic surfactants and cationic macromolecules- has direct biological implications and is also foreseen to have a number of applications, in particular for transfection and protection and purification of DNA. We have during the last few years established a broad physico-chemical research program on various mixed systems of DNA
The starting point in this thesis is stroke inflicted individuals’ stories about their experience of stroke, relations in everyday life, and their relations and attempts to return to paid work with the objective of gaining a further understanding of what happens when inflicted by illness and/or disability in working age. Furthermore, it aims at understanding how social relations and ruling relatio
In software product line engineering, testing for regression concerns not only versions, as in one-off product development, but also regression across variants. We propose a 3D process model, with the dimensions of level, version and variant, to help analyze, plan and manage software product line testing. We derive the model from empirical observations of regression testing practice and software p
Popular Abstract in Swedish Man brukar säga att det mänskliga ögat är anpassat till ett liv på land. Djur som lever i vatten har ögon som är uppbyggda på ett annat sätt, och därför ser vi människor normalt inte speciellt bra när vi dyker utan cyklop. Förklaringen är denna: våra ögon har två olika strukturer som bryter ljuset så att det hamnar på näthinnan längst bak i ögat - den första är ögats lAmphibious vision is accomplished in many animals by special optical and physiological adaptations in the eyes. However, human eyes are considered to be adapted to a life in air since our curved outer cornea – which is used to refract more than two-thirds of the incoming light on land – becomes useless underwater. This thesis produces evidence that Moken children, a population of sea nomads (or se
Popular Abstract in Swedish Reaktiva syreföreningar s.k. ROS uppstår naturligt i den syrerelaterade metabolismen eller i andra processer och den orsakar skador på essentiella föreningar i cellen såsom DNA, proteiner och fetter. Denna oxidation ligger till grund för många allvarliga sjukdomar hos människor som t.ex. viss typ av cancer och Alzheimers och man tror även att den ligger bakom andra åkomReactive oxygen species (ROS) consisting of various oxygen-based free radicals as well as other reactive non-radical species produced in O2-related metabolism or through other processes are involved in the oxidation of such vital biomolecules as DNA, proteins and lipids. The types of oxidation represented here are known to cause many different diseases and disorders in human beings, such as cancer
