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This work focuses on measurement principles based on ultrasound for applications in industrial automation. The measurements made are of geometric nature. The methods used are when possible based on experience and/or inspiration from the study of bats. A platform for ultrasonic measurements, that allows a VME-based host computer to transmit and receive signals, with a considerable flexibility has b

The moisture conditions of a concrete have a decisive effect on several properties and many parts of deterioration processes. The moisture distribution in a concrete structure is determined by the concrete composition, curing and the microclimate in the different parts of the structure. A prediction requires access to data on the time-dependency of the binder reactions, moisture fixation and moist

Popular Abstract in Swedish Vi kommer dagligen i kontakt med läkemedel i olika former, antingen som den kräm som vi smörjer in vårt onda knä eller Treon somliga tar på söndagsmorgon. Många av dessa produkter kan se enkla ut men är ofta resultatet av mycket forskning och för att förstå hur arbetet som utgör den här avhandlingen är kopplat till en Treo, så tänkte jag att vi ska börja med att förklarAn important issue within the pharmaceutical world today is the increasing number of poorly soluble drugs. These often show a low bioavailability and a susceptibility to varying conditions in the intestine. Hydrophobically modified poly (acrylic acid) (HMPAA), commercially available as Pemulen TR2, has shown promising abilities to control the release of especially poorly soluble substances. In thi

Popular Abstract in Swedish Under 1990-talet genomfördes en genomgripande reform av det svenska gymnasiet. Dels ersattes de tidigare gymnasielinjerna med treåriga program, som samtliga ger en grundläggande högskolebehörighet, dels flyttades ansvaret för utbildningens genomförande och ekonomi från staten till kommunerna. Ett kriterierelaterat betygssystem ersatte också det tidigare normrelaterade.

A systems analysis of construction project management revealed inconsistencies within and between subsystems that aim at supporting the in-service training of the craftsmen and utilise their ability to perform their tasks effectively. The information and knowledge that construction workers were provided on construction site appear to be poorly matched with what is required. Site managers, designer

The proton beam of the Florida State University Tandem Van de Graaff Accelerator is being used to make quantitative determinations of the composition of particulate matter found in the atmosphere. Proton scattering using 16 MeV incident particle energy is employed to resolve the light elements (up to Cl), while elements Al and heavier are observed via proton induced X-ray emission analysis. In ord

Leukocyte recruitment is a rate-limiting step in inflammatory disease. Tissue accumulation of leukocytes is a multi-step process comprising leukocyte rolling, adhesion and transmigration across the vascular endothelium. The aim of this thesis was to investigate the mechanisms underlying ischemia-reperfusion (I/R)-induced leukocyte-endothelial cell interactions in the colon. For this purpose, intra

The incidence of obesity in the developed world is increasing at an alarming rate. Concurrent with the increase in the incidence of obesity is an increase in the incidence of type 2 diabetes. Cyclic AMP (cAMP) and cGMP are key second messengers in all cells; for example, when it comes to processes of relevance for the regulation of energy metabolism, cAMP is a key mediator in the regulation of lip

Previous research has demonstrated that cigarette smoke contains bacterial and fungal components including lipopolysaccharide (LPS) and ergosterol. In the present study we used gas chromatography-mass spectrometry to analyze tobacco as well as mainstream and second hand smoke for 3-hydroxy fatty acids (3-OH FAs) of 10 to 18 carbon chain lengths, used as LPS markers, and ergosterol, used as a marke

Popular Abstract in Swedish Kostnaden för utveckling och validering av produktionsanläggningar är idag ett stort problem för farmaceutisk industri. Valideringen innebär normalt en stor experimentell arbetsinsats. Den stora mängden experimentellt arbete innebär att det utvecklas färre läkemedel och till högre kostnad idag jämfört med tidigare. FDA har uppmärksammat detta i sitt PAT initiativ. En m

Anaerobic digestion is a suitable method for the treatment of wastewater and organic wastes, yielding biogas as a useful by-product. A common way of preventing instability problems and avoiding acidification in anaerobic digesters is to keep the organic load to the digester far below its maximum capacity. An improved way of operating digesters would be to use monitoring and control systems for inc