1. To improve mechanistic understanding of plankton responses to eutrophication, a mesocosm experiment was performed in the shallow littoral zone of a south Swedish lake, in which nutrient and fish gradients were crossed in a fully factorial design. 2. Food chain theory accurately predicted total biomass development of both phyto- and zooplankton. However, separating zooplankton and algae into fin

This paper describes an instrument - the Housing Enabler - used in the assessment of housing accessibility. The tool was developed from the original Enabler idea by Steinfeld et al (1979), resulting in an instrument for reliable assessment of the accessibility of the housing environment and the immediate outdoor environment in terms of occupational therapy. Apart from a description of the instrume

An analytical model is developed to calculate recession distance and eroded volume for coastal dunes during severe storms. The transport relationship used in the model is based on wave impact theory, where individual swash waves hitting the dune face induce the erosion. Combining this relationship with the sediment volume conservation equation describes the response of the dune to high waves and w

Low-temperature absorption and fluorescence spectra of fully active cores and membrane-bound PS II preparations are compared. Detailed temperature dependence of fluorescence spectra between 5 and 70 K are presented as well as 1.7-K fluorescence line-narrowed (FLN) spectra of cores, confirming that PS II emission is composite. Spectra are compared to those reported for LHCII, CP43, CP47 and D1/D2/c

Dissociated sensory neurons were cultured on epitaxial gallium phosphide (GaP) nanowires grown vertically from a gallium phosphide surface. Substrates covered by 2.5 mu m long, 50 nm wide nanowires supported cell adhesion and axonal outgrowth. Cell survival was better on nanowire substrates than on planar control substrates. The cells interacted closely with the nanostructures, and cells penetrate

Short- and long-term adaptation (two months and one year respectively) to bilateral subcutaneous mastectomy was studied in twenty-five consecutive patients operated upon at the Department of Plastic and Reconstructive Surgery, Malmo, Sweden. The results were related to preoperative personality and psychosocial profiles. Postoperative difficulties in accepting the surgical result, sexual dysfunctio

The aim of this study is to examine the rewriting of the memoirs of the former pirate Alexander Olivier Exquemelin, Los Piratas de América, originally published in Amsterdam in 1678, which the Mexican writer Carmen Boullosa carries out in two recent novels: Son vacas, somos puercos and El médico de los piratas. In the light of Gérard Genette’s theory of hypertextuality this study deals with the fo

Popular Abstract in Swedish Idag lagras allt fler kartor digitalt och nya metoder krävs för att förbättra denna digitala hantering. Ett område som studerats under senare tid är automatiska metoder för kartografisk generalisering. Kartografisk generalisering innebär att man förenklar informationen i en karta för att göra den mer lättläst i den önskade skalan. Denna avhandling beskriver en optimerinCartographic generalisation is the process of simplifying a representation to suit the scale and purpose of a map. As such, generalisation has always been a central part in map production. This thesis is a contribution to the ongoing work on automating cartographic generalisation. Two topics are treated: optimisation methods in graphic generalisation, and propagation of updates between cartographi

Partial reduction of vanadia supported on silica-titania by NH3 + NO has been studied by electrical conductance and ESR measurements. The relationship between electrical conductance and degree of reduction was determined by oxidative and reductive titrations of V(IV) and V(V) species leached from catalyst samples which had been reduced to different levels. In situ monitoring of the steady-state V(

Random PCR mutagenesis was applied to the Thermus thermophilus xylA gene encoding xylose isomerase. Three cold-adapted mutants were isolated with the following amino-acid substitutions: E372G, V379A (M-1021), E372G, F163L (M-1024) and E372G (M-1026). The wild-type and mutated xylA genes were cloned and expressed in Escherichia coli HB101 using the vector pGEM-T Easy, and their physicochemical and

The thesis deals mainly with offshore engineering related problems where the dominant source of uncertainty is related to the loading. Loads arise from environmental random processes; e.g. waves, currents and winds. Complex as they are, such processes beg the consideration of randomness whence the need of associating probabilistic models to the engineering problems treated here. Two different typ

Denna rapport sammanfattar och reflekterar över lärdomar från tolv Balanced Scorecard projekt. Rapporten skall i första hand läsas som ett bidrag till diskussionen om relevansen av Balanced Scorecard i utvecklingen av kommunala sektorns styrsystem. Vad som förmedlas är en illustration av och reflektion över styrmodellens förtjänster och till¬korta¬kommanden. Rapporten är ett resultat av ett utvec