To run a Diesel engine in Homogeneous Charge Compression Ignition (HCCI) mode has proved to be a highly promising approach towards reduced engine-out emissions of NOx and particulate matter. A crucial issue when utilizing HCCI is the degree of charge homogeneity that is required to achieve the desired low temperature combustion. A very well mixed charge can be created through the use of traditiona

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

Abstract is not available

Landscape is fundamental to human experience. Yet until recently, the study of landscape has been fragmented among the disciplines. This volume focuses on how landscape is represented in language and thought, and what this reveals about the relationships of people to place and to land. Scientists of various disciplines such as anthropologists, geographers, information scientists, linguists, and ph

Popular Abstract in Swedish Skillnader i bearbetning av emotionella stimuli Den centrala frågeställningen i den här avhandlingen rör huruvida den emotionella laddningen av ett stimulus ger upphov till skillnader i den kognitiva bearbetningen. Är det så att negativt laddade stimuli (t.ex. ord som ”massaker”, ”våldtäkt”, bilder på hotfulla ansikten, eller bilder av otrevliga eller hotande situationeThe central phenomenon investigated concerns the valence-based process asymmetry found in several earlier studies (e.g. Pratto & John, 1991; Taylor, 1991), where negative stimuli seem to initiate more thorough processing than positive stimuli. This finding was consistent in the three empirical studies forming this dissertation. In Study 1 (three experiments) emotionally valenced words were pre

Popular Abstract in Swedish Katalys är en nyckelteknik inom kemisk industri och spelar en förvånansvärt viktig roll i vårt moderna samhälle. Många av de produkter och kemikalier som används i vårt dagliga liv produceras faktiskt med hjälp av katalysatorer. En annan mycket viktig tillämpning är att avlägsna giftiga ämnen från fordonsavgaser. Det mest fantastiska är att en katalysator snabbar på ochThis PhD thesis reports on investigations of the atomic scale structure of model catalysts relevant for the catalytic oxidation of CO and methane over Pd, and NOx reduction over silver-alumina, important reactions in automotive catalysts. By using complementary experimental techniques such as X-ray Photoelectron Spectroscopy, High Pressure X-ray Photoelectron Spectroscopy, Surface X-ray Diffractio

Short presentation of major changes regarding new presentation in TV