Sökresultat

Popular Abstract in Swedish Hydrofob pervaporation är en lovande teknik för återvinning och anrikning av aromer under milda betingelser men kommersiella tillämpningar av denna process är fortfarande outvecklade. Bättre kunskap om masstransportfenomen i kompositmembran avsedda för pervaporation behövs för utveckling av membran medan processimulering är ett viktigt verktyg för att optimera modulutfoHydrophobic pervaporation has gained a lot of attention as an alternative process for mild aroma recovery, but the real commercial applications of this process are still in their infancies. Better understanding of mass transport phenomena in composite pervaporation membranes is essential from the point of view of membrane manufacturing, while process simulation is an important tool for predicting

Colorectal cancers are globally ranked as the third most common cancer form in terms of incidence and mortality. Diet has long been considered as one of the main factors affecting population outcome regarding development of cancer in the colon. Numerous epidemiological studies have found links between consumption of dietary fibres and milk and reduced risk of cancers including colon cancer. To be

Popular Abstract in Swedish Avsikten med avhandlingen är att ge en bild av Hilding Rosenbergs musikverk "Johannes Uppenbarelse" (1940), för stor orkester, kör och recitation (recitativ), genom att belysa verkets tillkomsthistoria och grundläggande litterära och musikaliska struktur. Som en komposition som från början var avsedd att sändas ut över radion, bestämdes form och innehåll i "Johannes UppThe intention of this dissertation is to provide a portrait of Hilding Rosenberg´s musical work "The Revelation of S:t John" (1940), for a large orchestra, chorus and recitation (recitative), through illuminating the work´s history of origin and basic literary and musical structure. As a composition initially intended for broadcast over the radio, the form and content of "The Revelation of S:t Joh

The terminal investment hypothesis predicts that individuals should invest more in their present reproduction if they are less likely to survive to future reproductive events. Infections, which reduce viability, may be used by individuals as a cue of a diminishing residual reproductive value and could therefore theoretically trigger an intensification of breeding effort. We tested this hypothesis

An experiment with small roundabouts – as speed reducing measures - was carried out in a Swedish city. The purpose of the study was to test the large scale and long term effects of the roundabouts. The results showed that the roundabouts reduced the speed considerably at the junctions and on links between roundabouts. The lateral displacement the roundabout forces the driver to has a great importa

In order to increase the knowledge on human behavior in smoke, an evacuation experiment was performed in a road tunnel in Stockholm in July, 2014. The experiment included 66 participants, who individually were instructed to evacuate a smoke-filled tunnel. The experiment focused on measuring the participants’ walking speed in smoke-filled, as well as smoke-free parts of the tunnel. In addition, exi

The aim of this study was to determine whether muscle fibre degeneration brought about by chronic low-frequency electrical stimulation was related to the pattern and frequency of stimulation. Rabbit fast-twitch muscles, tibialis anterior and extensor digitorum longus, were stimulated for 9 days with pulse trains ranging in frequency from 1.25 Hz to 10 Hz. Histological data from these muscles were

The power expenditure of flapping flight in birds is characterised by a U-shaped function of speed through the air. From this relationship and the assumption of limited power available from flight muscles, it is possible to predict changes in the birds' airspeed in relation to external factors such as wind. These predictions are derived from flight mechanical theory and optimality criteria concern

Non-invasive documentation of historic façades with fluorescence lidar techniques can provide helpful information for the cultural heritage sector, especially when large areas outdoors are to be examined. This paper presents a case study on the Coliseum, Rome, where both cleaned and heavily soiled areas of the monument were scanned and analysed with two fluorescence lidar systems. Biodeterioration

Huntington's disease (HD) is caused by an expanded CAG repeat in exon 1 of the gene coding for the huntingtin protein. The cellular pathway by which this mutation induces HD remains unknown, although alterations in protein degradation are involved, To study intrinsic cellular mechanisms involved, To study Intrinsic to the mutation, we examined dissociated postnatally derived cultures of striatal n

Wetlands can modify and control nutrient fluxes between terrestrial and aquatic ecosystems, yet little is known of their potential as biological buffers and sinks in the biogeochemical silica cycle. We investigated the storage of amorphous silica (ASi) in a central-European riparian wetland. The variation in storage of ASi in the soil of an undisturbed wetland was significantly controlled by two f

The character and quantity of dissolved organic carbon (DOC) were studied in nine small boreal streams and adjacent soils during two years, with focus on the spring snowmelt period. The streams cover a forest-wetland gradient, spanning from 0% to 69% wetland coverage. Lower values of the absorbance ratio measured at 254 nm and 365 nm (A(254)/A(365)), in both soil plots and streams, indicated that

Activated protein C inhibits the procoagulant function of activated factor V (FVa) through proteolytic cleavages at Arg-306, Arg-506, and Arg-679. The cleavage at Arg-506 is kinetically favored but protected by factor Xa (FXa). Protein S has been suggested to annihilate the inhibitory effect of FXa, a proposal that has been challenged. To elucidate the effects of FXa and protein S on the individua