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This thesis is a study of molecular exchange between the aggregates in a colloidal dispersion. The problem of oil molecular transport at resolubilization of big oil drops by smaller microemulsion droplets is considered as an experimental model system. The resolubilization kinetics was measured through a temperature jump into a droplet microemulsion phase from a two-phase region of microemulsion dr

The present global environmental condition is a consequence of the increasing consumption of natural resources whose depletion exceeds what is physically possible to sustain in the long term. The construction sector is a considerable contributor to this resource depletion and sustainability is adopted in the form of the theory of ecological modernization. The implementation depends to varying exte

Popular Abstract in Swedish Urinvägsinfektioner är en av våra vanligaste infektionssjukdommar. De orsakas främst av den Gramnegativa bakterien Escherishia coli. Normalt hålls urinvägarna sterila av ett effektivt försvar med utsöndring av antimikrobiella faktorer i urinen, men även urinflödet i sig är en viktig faktor i försvaret mot infektioner. Vissa bakterier klarar dock att etablera sig trots dIn this thesis we have used P fimbriated E. coli as a model to investigate the mechanisms of bacterial recognition and cell activation by the urinary tract (UT) epithelium. We show that Toll like receptor 4 (TLR4) is crucial for the recognition and host response to P fimbriated E. coli. This response was independent of LPS and did not require CD14. TLR4 was abundant on epithelial cells throughout

Cathodoluminescence (CL) is a very powerful technique for studying the optical properties of semiconductor structures, especially low-dimensional structures (structures with sub-micron features). We will give a number of examples of studies, where CL has been used to study a variety of low-dimensional semiconductor structures. We will also compare the CL technique with other techniques for studies

Popular Abstract in Swedish Njurarnas huvudsakliga funktion i kroppen är att rena blodet från slaggprodukter och reglera vätskebalansen. Hos patienter med nedsatt njurfunktion måste blodet renas på alternativa sätt. Antingen leds blodet ut via slangar till en maskin som renar blodet (hemodialys), eller används bukdialys, så kallad peritoneal dialys (PD). Vid PD häller patienten dialysvätska i bukhIn the present thesis, the quantitative role of active transport (transcytosis) in bulk transvascular protein movement in vivo was evaluated. Using chemical transcytosis inhibition (N-ethylmaleimide (NEM) and filipin), we were able to show that NEM actually increases endothelial permeability to macromolecules, probably as a result of unspecific toxic action on endothelial cells. Filipin, on the ot