Improving electrical efficiency has been proposed as the most convenient means of reducing, e.g. CO2 emission from power plants. Increasing fuel utilization through combined heat and power generation is another useful measure for emission reduction. Trigeneration technology for the production of heat, power and cooling is an interesting alternative for further improvement of fuel utilization. Prev

Popular Abstract in English Heme is a small red-colored molecule consisting of an iron atom bound to a chemical structure called porphyrin. Heme is essential for many organisms, including humans, because it is a cofactor in a variety of proteins that are needed to sustain metabolism. The probably most famous heme protein is hemoglobin which gives blood its red color. The heme cofactor in hemoglobiHeme proteins form a large and diverse group of proteins which are involved in a variety of biological functions. The heme prosthetic group enables them to carry out redox reactions, transport electrons, bind gaseous molecules, and function as sensors. Despite their importance only little is generally known about heme protein biogenesis. The Gram-positive bacterium Enterococcus faecalis is found i

Biografiskt dubbelporträtt av den danska skaldinnan Lyche Sophia Friis (c:a 1699-1747) och hennes make, sedermera professorn i teologi, Gustaf Ernst von Bildstein (1703-1769).

By examining the reception of Edme Boursault’s first fable comedy, Ésope (1690), the paper discusses the historical prerequisites of an interlacing of fable and comedy. The several 18th century translations of Boursault’s drama often have been taken as a pretext for the success of his genre experiment. The fusion of fable and comedy was, however, not in all respects in line with literary horizons

Nature produces biologically active and chemically intriguing secondary metabolites. To isolate and characterize compounds of novel activity and structure, bioassay-guided fractionations were applied to several plants as well as to a basidiomycete. Our studies resulted in the purification and characterization of a diverse range of compounds displaying activity in a variety of biological assays. Ne

Popular Abstract in Swedish Cholecystokinin (CCK) och gastrin är två välkända mag-tarmkanals hormoner. CCK namngavs efter sin förmåga att stimulera gallblåsans kontraktion och gastrin visade sig vara involverad i utsöndringen av magsyra. Allt eftersom antalet publikationer gällande dessa hormoner har vuxit har också en mångfald andra funktioner tillskrivits respektive hormon, bland annat har bäggeCholecystokinin (CCK) and the related hormone gastrin have been claimed to exert trophic effects in the pancreas and gastrointestinal tract. Two types of receptors for CCK and gastrin are known to exist, the CCK-A and the CCK-B receptor. They differ in their affinty for CCK and gastrin. The CCK-A receptor has about 500 times higher affinity for sulfated than for non-sulfated CCK and gastrin, while

Popular Abstract in English In an ever energy hungry world and given the concerns about global warming, depleting reserves of fossil fuels and growing fuel prices, there is an urgent need for alternative renewable energy sources. Biogas production through anaerobic digestion in sync with other bio energy production technologies could replace or partially replace fossil fuels and hence curb greenhoAnaerobic digestion provides an array of positive environmental benefits such as reducing greenhouse gas emissions, replacing mineral fertilizers, producing renewable energy and treating waste. However, pitfalls in anaerobic digestion such as poor methane yields, process instability, process failure and regional shortages of feedstock have limited the full exploitation of the anaerobic digestion p