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The flagellate Euglena gracilis shows rhythms in phototaxis and cell shape changes between oblong and round. Artificial UV-B radiation of 0.5 W m-2 caused a loss in phototaxis, but the peak of activity occurred at the same time as for control cells. The transition from round to oblong cell shape was slower after UV-B radiation, but the amplitude between the roundest and the most oblong cell shape

Research streams in industrial- and service marketing have announced the increasing intangibility and servitization of business exchanges and as a consequence their more interactive nature. Even though, early interaction models support the idea of exchanges as social interaction processes, little is known about this social, individual level between companies. The study therefore aims to increase t

Popular Abstract in Swedish Summary in swedish I en rad olika inflammatoriska sjukdomar såsom astma, reumatoid artrit och parodontit är makrofager involverade. Makrofager är vita blodkroppar som finns i kroppens olika vävnader. De reagerar på främmande partiklar, t ex bakterier, och bekämpar dessa genom att ”dels äta upp” främmande partiklar, sk fagocytos, och dels genom att utsöndra olika substaEicosanoids include prostaglandins, thromboxanes and leukotrienes, which are arachidonic acid oxygenation products. These lipids make important contributions to the signs and symptoms of inflammatory diseases. The level of free arachidonic acid seems to be a rate-limiting factor in the synthesis of eicosanoids and the enzyme cytosolic phospholipase A2 (cPLA2) has been shown to preferentially liber

Popular Abstract in Swedish Den cancerskyddande genen p53 är av betydelse för att göra leukemiceller friska. Blodbildning. Blodceller är nödvändiga för vårt välbefinnande och vår överlevnad. Det finns flera olika typer med egna specialiserade funktioner. Så krävs t. ex. röda blodkroppar för syresättning och vita blodkroppar för att bekämpa infektioner. Blodcellerna har begränsad överlevnad; när Leukemic cells suffer from an impaired ability to differentiate due to inherited or acquired genetic lesions. These genetic changes can sometimes be bypassed with various compounds both in vitro, and, more rarely, in vivo, thus inducing terminal differentiation of the leukemic cells. Differentiation of both leukemic and normal hematopoietic cells is believed to be intimately coupled to cell cycle

Popular Abstract in Swedish En viktig del av sjukgymnastens kliniska undersökning är att bedöma muskelstyrka. För att kunna planera och genomföra en adekvat behandling krävs en objektive mätning av muskelstyrkan och en förståelse av de faktorer som orsakar muskelsvaghet. En faktor som kan bidra till muskelsvaghet är en oförmåga hos centrala nervsystemet att rekrytera och optimalt aktivera de motorThe evaluation of skeletal muscle strength is an important part of the physiotherapist’s clinical examination in order to plan and execute appropriate interventions. This requires the objective assessment of muscle strength and the determination of the underlying factors of muscle weakness. One factor that can contribute to muscle weakness is the inability of the central nervous system to voluntar

The traditional routing protocols used in wireless mesh networks like AODV are not very efficient since the number of hops to a destination is mainly considered as the routing metric. This may lead to shorter paths; however, the throughput can decrease when traffic is routed through those paths. Various contributions have proposed different metrics or completely different routing algorithms. Never

To estimate the long memory series in the framework of state space model is rarely documented although the theoretical foundation was well built in late 90s, and the literatures concentrate mainly on the estimation in stationary case. This paper aims to estimate the parameters in a wide range of long memory series by applying approximate Maximum Likelihood Estimation (MLE) and Bayesian Monte Carlo

Popular Abstract in Swedish Författaren utarbetar och försvarar en version av kantiansk etik som utgår från Kants tanke att det enda som har absolut värde är den goda viljan och att det högsta goda för människor därmed består i dygd samt lycka i proportion till dygd. Avhandlingen består av två huvudsakliga delar, dels en allmän genomgång av vad det innebär att vara en person, dvs en varelse som inThis work seeks to develop a Kantian ethical theory in terms of a general ontology of values and norms together with a metaphysics of the person that makes sense of this ontology. It takes as its starting point Kant’s assertion that a good will is the only thing that has an unconditioned value and his accompanying view that the highest good consists in virtue and happiness in proportion to virtue.