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Europa och världen under 1900-talet

Boken är en universitetslärobok som omspänner hela 1900-talet historia, I fokus står Europa, och den värld som påverkats av och påverkat Europa.

Service Orchestration with OPC UA in a Graphical Control Language

Production plants need to be set up and reconfigured faster to fulfill increasing market demands. Highly flexible automation systems are needed and a promising approach is Service Oriented Architecture (SOA) which has recently received much attention in both academia and industry. OPC Unified Architecture (OPC UA), the next generation of the de facto standard for interoperability in the automation

Organization tracking of long-term atrial fibrillation recordings: differences between paroxysmal and persistent episodes

In this work, a method for non-invasive assessment of AF organization has been applied to discriminating between paroxysmal and long-term persistent AF episodes. Following extraction of the atrial activity (AA) signal, the dominant atrial frequency (DAF) of the AA was computed based on a hidden Markov model. Finally, the main atrial wave (MAW) was obtained by bandpass filtering centered on the DAF

Investigation of shallow leakage zones in a small embankment dam using repeated resistivity measurements in Internal erosion in embankment dams and their foundations

Resistivity measurements were carried out in order to identify preferential seepage paths in a small dam in central Sweden. Increased seepage flow had been observed at high reservoir levels. Repeated resistivity measurements were performed along the dam crest during 24 hours controlled rising of the reservoir. Each measurement data set was compared to the original reference data set using time-lap

Mechanisms of stretch-induced growth and contractile differentiation in vascular smooth muscle

Popular Abstract in Swedish Blodkärlens glatta muskulatur kan anpassa sig till ett ökat tryck genom omstrukturering och hypertrofi, vilket ofta ses hos patienter med hypertoni. De molekylära mekanismerna som ger upphov till dessa effekter är inte fullständigt klarlagda. Vi har därför utvecklat en modell för att undersöka effekterna av tryck (sträckning av kärlväggen) på kärlpreparat från portaven Vascular smooth muscle can adapt to increased intraluminal pressure by remodelling and hypertrophy, as seen in hypertension. The molecular mechanisms responsible for this are still incompletely characterized. We have developed an organ culture system where strips of rat or mouse portal veins are cultured for 1 to 3 days loaded (stretched) by an attached weight and then studied for morphology, func