This work deals with the hydrolysis of lignocellulosic agricultural residues, by means of combined pretreatment and enzymatic hydrolysis, to be used for ethanol production. Four agricultural by-products, i.e. barley husk, wheat bran and the waste streams of a combined starch and ethanol factory, denoted wheat starch fibres and starch-free fibres B, were investigated. The starch in wheat bran and w

The ground state properties and absorption spectra of N-benzylideneaniline (NBA) have been studied at the density functional (DFT) and at the time-dependent density functional (TD-DFT) level of the theory. The equilibrium geometries of the E and Z isomers in the ground state and their vibrational frequencies have been computed. Furthermore, the excitation energies of the lowest excited singlet and

The effects of planktivorous fish on lower trophic levels through predation on zooplankton and nutrient excretion were experimentally separated and their relative importance quantified in a eutrophic humic lake. The experiment was performed in 12 enclosures (3 mi), which initially were identical with respect to all components except fish. At the start of the experiment, caged fish not able to feed

Om jazzinspelningar på Thomas Alva Edisons skivbolag under 1920-talet.

Popular Abstract in Swedish Användningen av informations och kommunikationsteknik (IKT eller IT) påverkar vårt sätt att kommunicera i arbetslivet. Det underlättar distansarbete och skapar möjligheter till s.k. virtuella möten - att samarbeta utan att träffas fysiskt. Detta kan i sin tur påverka behovet av pendlings- och tjänsteresor, genom att vi får tillgång information, en funktion eller en tjänInformation and Communication Technologies change the way we work and communicate, enabling us to telework and to have virtual meetings - collaborating without a physical meeting. This can influence the need for commuting and business travel by provision of access to an activity without mobility - virtual mobility. The large environmental impact of travel makes this potential travel reduction inte

Streptococcus pyogenes is a common human pathogen causing mild infections such as tonsillitis and pharyngitis, but is also the cause of life-threatening conditions. To be able to infect the human host, S. pyogenes express different virulence factors. The surface-expressed M protein is a major virulence factor of S. pyogenes, mediating resistance to killing by human neutrophils. Results presented i

Insertion of metals into various tetrapyrroles is catalysed by a group of enzymes called chelatases, e.g. nickel, cobalt, magnesium and ferrochelatase. It has been proposed that catalytic metallation includes distorting the porphyrin substrate by the enzyme towards a transition state-like geometry in which at least one of the pyrrole rings will be available for metal chelation. Here, we present a

An understanding of the distribution of water in wood pulp during drying is of fundamental importance to the paper industry. In this study nuclear magnetic resonance (NMR) imaging is used to measure quantitative water profiles during the drying of liquid packaging board with initial water ratio (water: dry mass) of approximately 1.5. The drying was carried out in situ within the magnet, under a ra

Purpose: Radiographic abnormalities in the pubic bone and symphysis are often seen in athletes with groin pain. The aim was to create a grading scale of such radiologic changes. Material and Methods: Plain radiography of the pelvic ring including the pubic bone and the symphysis was performed in 20 male athletes, age 19-35, with long-standing uni- or bilateral groin pain. We used two control grou

Secretagogin is a newly identified calcium-binding protein selectively expressed in neuroendocrine tissue and pancreatic beta-cells. The function of secretagogin is unknown, but it has been suggested in beta-cells to influence calcium-influx, insulin secretion and proliferation, and has been observed downregulated in diabetes-prone BB rat islets exposed to cytokines. In the present study, we ident

The introduction of avian malaria (Plasmodium relictum) to Hawaii has provided a model system for studying the influence of exotic disease on naive host populations. Little is known, however, about the origin or the genetic variation of Hawaii's malaria and traditional classification methods have confounded attempts to place the parasite within a global ecological and evolutionary context. Using f

Analys av Victor Sjöströms berättarteknik i långfilmen Ingeborg Holm i utvecklingen av den moderna spelfilm.

Genetic engineering has been used to construct fusion proteins with tryptophan containing peptides. The peptides and the fusion proteins have been partitioned in aqueous two-phase systems of poly(ethylene glycol) (PEG)-dextran and Ucon-dextran. The studied model protein was ZZT0, where Z is an engineered domain of domain B of staphylococcal protein A. The specially designed hydrophobic peptides, A