Filtyp
Increased understanding of the pumping mechanics of the heart are of great importance to develop diagnostics, treatment and prognostics for cardiovascular diseases. Blood flow in the heart is connected to its anatomy and function, and may therefore be a sensitive marker of cardiac health and disease. Therefore, the aim of this thesis is to develop and validate methods for quantification and visual
This thesis concerns agreement with collective nouns in American, British and Australian English. It is based on material from newspaper corpora and spoken corpora. The findings suggest that dialectal, stylistic, diachronic, syntactic and semantic factors interact in the selection of singular and plural agreement. It was shown that there are differences between regional varieties, between speech a
This thesis deals with two topics in wireless communications: interference between frequency-hopping (FH) networks, and multiuser diversity. The work on FH treats a system where FH is used to provide simultaneous access to the channel for multiple uncoordinated wireless networks. This is achieved by performing frequency hops on a packet-by-packet basis, and letting the sequence of hopping frequen
The phase behaviour and gelation of the anionic polysaccharide kappa-carrageenan (KC) in different salt solutions was studied. The specific site binding of certain anions and certain cations to the KC helix was used as a means of controlling the interactions. In the presence of a binding anion (I-) the charge density of the helix increases and the aggregation of helices, and thereby the gelation,
Tissue remodeling is observed in several physiological conditions such as embryogenesis, senescence, wound healing and pregnancy, as well as in several pathological conditions such as fibrosis and tumorgenesis. Fibroblasts play a key role in this tissue remodeling due to their capability of altering the turnover of the extracellular matrix. During the remodeling process, the fibroblasts are believ
Movement and dispersal are important determinants of the spatial distribution and persistence of animal populations in a heterogeneous environment. I studied the small-scale movement pattern of a soil-living insect, Protaphorura armata (Collembola) by using a video-equipment. I added chemical cues, food and conspecifics to their environment and evaluated the effects of external cues on the movemen
Adopting a phenomenological, sensemaking-based approach, this dissertation reviews and critiques a variety of theories proposed as explanations of corporate “greening” and the evolution of corporate environmental management (CEM), and then presents and analyzes an organization study to explore in greater depth how sensemaking can be used for research in this context. As its object, the ethnograph
The legislative limits for NOX emissions in the exhaust gas from heavy-duty diesel engines will be decreased in the European Union from today 3.5 g/kWh (Euro IV) to 2.0 g/kWh in 2008 (Euro V). In the USA and Japan a similar trend can be seen. Accordingly, the development of an exhaust aftertreatment system for heavy-duty trucks seems unavoidable. In this work, an 11 l diesel engine rig has been bu
The intention of this work was to establish alternative purification methods to obtain highly purified caveolae from various tissues. In order to isolate caveolae, sufficiently pure plasma membranes are needed. A method is presented for the isolation of plasma membranes from lung tissue using a combination of conventional polyethylene glycol/dextran two-phase partitioning and affinity partitioning
Helicobacter pylori is a gastric pathogen which cause chronic type B gastritis and peptic ulcer disease. H. pylori produces virulence factors such as urease, vacuolating cytotoxin VacA, cag pathogenicity island-associated proteins, flagella and adhesins. These proteins interact with several host cell molecules such as sialylated cell surface glycoproteins, some of glycolipids and mucins. Glycosami
Artificial, amfiphilic, and biomimetic receptors soluble in water were synthesized via attaching polar amino acids to hydrophobic back-bones possessing a surface suitable for hydrophobic interactions. The hydrophobic back-bones chosen in this thesis were anthracene and dibenzobarrelene structures. A route to an efficient synthesis of a dibenzobarrelene backbone with two sets of orthogonal reactivi
In fantasy literature, the setting is as important to the story as are characters and plot; but although many fantasy scholars have pointed this out, there is very little criticism that explores the role of the setting in fantasy. The aim of this study is to use a topofocal (place-focused) perspective to examine four aspects of the fantasy setting, including the way in which settings function in t
In this thesis, electron transport in mesoscopic semiconductor nanostructures, in particular so-called electron billiards or quantum dots, is studied. The thesis can be divided into two areas: the linear response regime of transport, and the nonlinear response regime of transport. The classical and quantum mechanical electron dynamics are studied for triangular and square-shaped electron billiard
This study is based on dialogic readings of two of John Cowper Powys´s major novels, A Glastonbury Romance and Porius. The aim of this thesis is to demonstrate the interrelationship in the examined texts between the chain of narrative displacements and the frequent changes of voice and genre. Powys´s cornucopian writing with its wide employment of characteristics from various genres
The root vole (Microtus oeconomus) is a rodent with Holarctic distribution. In fact, it is the only Microtus vole found in both Eurasia and North America. Phylogeographic analyses of the root vole from across its distribution range were performed using mitochondrial and Y chromosome DNA sequences. Mitochondrial cytochrome b gene data demonstrate that the root vole is divided i
Phage display technology is a biotechnological tool that can be used to obtain molecules/reagents able to discriminate between target molecules. Reagents with such features can be used in diverse settings like biological chemistry, diagnostics and in therapeutic applications. Phage display technology is based on the use of recombinant DNA technology, bacteria and a special kind of bacterial virus,
The regulation of the exocrine pancreas has been under thorough investigation for many decades. In rats, cholecystokinin (CCK) is considered to be the major gut hormone stimulating the pancreas to releasing the digestive enzymes. CCK acts directly via CCK-A receptors in the pancreas, or through receptors located on the vagal afferents and stimulating the secretion via the cholinergic vagal efferen
Objective To investigate the extent to which Danish women attending antenatal care plan their pregnancies and to determine the association between pregnancy planning and the intake of folic acid, alcohol consumption and smoking habits prior to conception and before the 16th week of gestation. Methods A cross-sectional survey of 258 women. Main outcome measures: intake of folic acid, alcohol consum
