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Ethanol can be produced from lignocellulose by first hydrolysing the material to sugars, and then fermenting the hydrolysate with the yeast Saccharomyces cerevisiae. Hydrolysis using dilute sulphuric acid has advantages over other methods, however, compounds which inhibit fermentation are generated during this kind of hydrolysis. The inhibitory effect of aliphatic acids, furans, and phenolic compo
Speckle is an unwanted noise in ultrasound images, and appears as returning echoes are coherently summed over the transducer surface. In Doppler applications, the total power of the received spectrum varies in a manner similar to speckle. This paper investigates the correlation of continuous-wave (CW) Doppler signals obtained from simultaneously transmitted carrier frequencies, when a slowly flowi
The partitioning of 10% (w/w) lactic acid in ethylene oxide propylene oxide (EOPO) random copolymers and dextran T500 aqueous two-phase systems was studied. An analysis of variance design was applied to investigate the effect of pH, polymer concentration, and addition of polyethyleneimine to the aqueous two-phase systems. The lowest lactate partition coefficient of 0.09 was obtained at pH 6 in the
The lean stability limit of a prototype syngas burner is investigated. The burner is a three sector system, consisting of a separate igniter, stabilizer and Main burner. The ignition sector, Rich-Pilot-Lean (RPL), can be operated with both rich or lean equivalence values, and serves to ignite the Pilot sector which stabilizes the Main combustion sector. The RPL and Main sectors are fully premixed,
Artikeln diskuterar en föga uppmärksammad paradox inom etiken: Etiska teorier söker övervinna moralisk oenighet och bristande efterlevnad, men de lever på sitt misslyckande att åstadkomma detta. Om alla skulle handla efter universellt accepterade moraliska principer blev moralen ointressant. Kontraktsetiska teorier kan bidra till att förstå denna aspekt av etiken. Enligt dessa uppstår etiska probl
I bokens första studie, "Samhällsbyggarnas tv-undervisning. Estetik och ideologi i utbildningsprogram för televisionen" författad av Ann-Kristin Wallengren, ställs frågan om hur ett programs form och estetik är kopplat till samtidens samhällsbild och ideologier. Genom analyser av ett antal samhällskunskapsprogram för skolbarn visas hur utbildningsprogrammen från 1960-talet och framåt har förändrat
Popular Abstract in Swedish Syftet med denna avhandling är att förstå och förklara frivården, som organisation och som praktik samt att få en fördjupad förståelse av förhållandet mellan stöd och kontroll. Avhandlingen bygger på två empiriska material. En studie av arkivhandlingar och publicerade texter från 1820-2000. En intervjustudie där tjugo frivårdsklienter, tjugo handläggare och tio lekmannaThe purpose of this thesis is to gain a deeper understanding of the relationship between support and control. The purpose is reached by a study of the probation service as an organization and the practical side of its work The thesis is based on two empirical studies. One is a study of records and published texts from the period 1820-2000. The second is an interview study, in which twenty probatio
The functional organization of the hindlimb withdrawal reflex system was studied in the rat. For the reflex pathway to each muscle, a "mirror-image" relationship was found between the spatial distribution of sensitivity within its cutaneous receptive field and the pattern of cutaneous unloading ensuing on muscle contraction. Thus, the withdrawal movement pattern ensuing on contraction in a muscle
Collagen-induced arthritis (CIA) is a T cell-dependent autoimmune disease that serves as an animal model for human rheumatoid arthritis. CIA can be induced in H-2q mice by a single immunization with the cartilage-specific protein type II collagen (CII). This study has focused on CII immunity and tolerance with respect to the interactions between antigen, antigen-presenting cells and T cells. CIA-r
Abstract not available
