Sökresultat

Changes in the composition of carrot cell wall proteins were investigated, associating metabolic changes during long-term storage with changes in mechanical properties. Harvested carrots accumulate an antifreezing protein in their cell walls reaching a maximum level after 12 weeks of storage at 0°C, followed by a gradual decrease. During the same period of time, there is a decrease in the slicing

This study comprises a technical and economic comparison of three different processes for the production of fuel ethanol from pine. The processes were based on the same technical and economic assumptions. The main difference between the processes lies in the front end of each process, i.e. in the pretreatment of the raw material and in the hydrolysis of the hemicellulose and cellulose to sugars. T

The adsorption of monolayers of the pyridine-carboxylic acid monomers (isonicotinic acid, nicotinic acid, and picolinic acid) on rutile TiO2(1 1 0) has been studied by means of X-ray photoemission spectroscopy. An investigation of the O 1s spectra shows that the molecular carboxylic groups are deprotonated and, hence, that the molecules bind to the surface in a bidentate mode. Moreover, the bindin

Popular Abstract in Swedish Hjärtats skrifter är en undersökning av brevet som kommunikationsform under 1700-talet. Brevkulturen i 1700-talets Tyskland betraktas som ett av startskotten för vad som brukar kallas den moderna tiden. I denna studie granskas brevkulturens funktion och betydelse för det epistemiska skifte som äger rum under senare hälften av 1700-talet. Undersökningens utgångspunkt ärThis dissertation examines the correspondence of the 18th-century German authors Anna Louisa Karsch and Johann Wilhelm Ludwig Gleim. The main emphasis of the present study is to demonstrate how readings of Karsch's and Gleim's correspondence shed light on epistolary culture. Particular attention is paid to the notion of epistolary culture as a relatively unrestrained ?experimental setting? for bou

An investigation was undertaken to outline how microorganisms suggested for use in coal desulphurization are affected by compounds leached from coal. Three species of the genus Sulfolobus were studied. Sulfolobus acidocaldarius was seen to be affected by compounds leached from coal more negatively than Sulfolobus brierleyi and Sulfolobus solfataricus. It was observed that certain conditions during

Popular Abstract in Swedish Under den geologiska period som kallas kvartärtiden (de senaste 2,6 miljoner åren) har flera istider (glacialer) och mellanistider (interglacialer) avlöst varandra enligt ett mönster där glacialerna varar i ungefär 100000 år och mellanistiderna i ca 10000 år. Under istiderna täcktes stora landområden på norra halvklotet, bl.a. Skandinavien, av väldiga inlandsisar. Då deThe aim of this thesis was to reconstruct the Holocene vegetational and climatic development in the Sylarna-Storulvån area, western Jämtland, in the central Scandes Mountains. Temporal trends and fluctuations in the elevation and vegetational character of the tree-limit ecotone were studied mainly by means of pollen and plant macrofossil analysis of two lake sediment sequences (Lakes Stentjärn and

This study contributes to the discussion on the potential of the IPPC Directive to serve as a driver for eco-efficiency through the analysis of case studies of British, Finnish and Swedish dairy industries and the corresponding regulatory bodies. The signals given to the companies on the required improvements and the focus of the permitting process - on the manufacturing process rather than end-of

Alport syndrome (AS) is a type IV collagen hereditary disease characterized by progressive hematuric nephritis, hearing loss, and ocular changes. Mutations in the COL4A5 collagen gene are responsible for the more common X-linked dominant form of the disease characterized by much less severe disease in girls and women. A "European Community Alport Syndrome Concerted Action" (ECASCA) group was estab

Deoxyuridine 5'-triphosphate nucleotidohydrolase (dUTPase, E.C. 3.6.1.23) catalyzes the hydrolysis of dUTP to dUMP and pyrophosphate and is involved in nucleotide metabolism and DNA synthesis. A crystal of the recombinant E. coli enzyme, precipitated from polyethylene glycol mixtures in the presence of succinate at pH 4.2, was used to collect synchrotron diffraction data to 1.9 Å resolution, in sp

A transition to environmentally sustainable societies should involve a significant and comprehensive — strategic—change. Much of the promise of SEA is associated precisely with its perceived capacity to facilitate such a strategic transformation by influencing selected ‘strategic decisions’. This paper examines the potential effectiveness and limitations of such an approach in light of contemporar

Sub-picosecond laser pulse driven localization of electronic excitation energy is suggested for a biological chromophore complex. Based on an exciton model of the photosynthetic core antenna PSI of Synechococcus elongatus the shape of the respective laser pulse is calculated using optimal control theory combined with a density matrix theory accounting for energy relaxation and dephasing caused by

Inclusive jet production is studied in neutral current deep-inelastic positron-proton scattering at large four momentum transfer squared Q(2) > 150 GeV2 with the H1 detector at HERA. Single and double differential inclusive jet cross sections are measured as a function of Q(2) and of the transverse energy E-T of the jets in the Breit frame. The measurements are found to be well described by calcul

Architects design work sometimes originates from a simplified view of human demands and needs, which may result in environments that do not fulfill the users requirements. This thesis refers to five different case studies where the affected users were involved in the creation of their dwellings or working environment. The issue of the thesis is that participatory design creates environments which

En byggnads täthet kan kontrolleras genom att man utför en provtryckning, under vilken läckflödet genom en provtryckningsfläkt mäts. Rapporten innehåller matematiska modeller för en vidareutveckling av provtryckningsmetoden som utnyttjar den tryckgradient som tryckskillnaden inne/ute skapar.

Popular Abstract in Swedish Föreliggande avhandling är en fallstudie vars empiriska material utgörs av kvalitativa forskningsintervjuer, deltagande observationer och textdokument. Avhandlingen uppmärksammar ett händelseförlopp på en nystartad svensk gymnasieskola. Förloppet inleds med kommunens och rektorns stora visioner för verksamheten och avslutas med att en samstämmig lärargrupp avsätter rektThis dissertation is based on a case study of a series of events at a newly started Swedish high school. The study employs a qualitative methodology comprising of interviews, participant observation and analysis of text documents. The series of events opens with the grand visions of the municipality and the school's principal for the school and concludes with the teachers at the school unanimously