Sökresultat

By modeling of an enzymatic reaction for pharmaceutical production it is possible to get a better understand the mechanism of the enzymatic reaction, and to find an optimal condition for the process step. The enzyme in question is enteropeptidase that cleaves proteins by hy-drolysis. Enteropeptidase can cleave at many different cleaving sites, if the amino acid Argi-nine or Lysine is at the first

In this master thesis it's concluded that Swedish municipalities performs various traffic data collections in recurring measurement points annually and beside those complementing measurements are done at additional areas of interest. The study shows that most often traditional measurement methods, like pneumatic tubes, are used since they are considered reliable and accurate. Pneumatic tubes,

Det finns åtta planeter i bana runt vår egen stjärna Solen och flera dvärgplaneter. Astronomer har numera upptäckt avlägsna exoplaneter kretsande runt andra stjärnor i vår galax Vintergatan. Här lyfter vi blicken upp och beundrar nattens alla stjärnor och stjärnbilder och följer astronomerna på deras upptäcktsfärd bland avlägsna exoplaneter.Orbiting our star, the Sun, there are eight planets and several dwarf planets. Astronomers have now discovered planets orbiting several nearby stars in our galaxy, the Milky Way. In this planetarium show we look up into the starry night sky, familiarize ourselves with the stars and the constellations, and together we discover the exoplanets out there and how they can be detected.

ObjectiveComputerized decision‐support tools may improve diagnosis of acute myocardial infarction (AMI) among patients presenting with chest pain at the emergency department (ED). The primary aim was to assess the predictive accuracy of machine learning algorithms based on paired high‐sensitivity cardiac troponin T (hs‐cTnT) concentrations with varying sampling times, age, and sex in order to rule

Asteroiden 3122 Florence flög förbi Jorden i början av September 2017 och astronomer lyckades fånga bilder av asteroiden som visar att den har två månar kretsande runt om sig. I denna visning diskuterar vi vad vi vet om asteroiderna i vårt solsystem, hur stora de är, hur många och vad vi skulle kunna göra om en asteroid var på väg mot Jorden.The asteroid 3122 Florence flew past the Earth in early September 2017 and astronomers managed to capture images showing that it had two moons in orbit around it.In this planetarium show we discuss the asteroids in our Solar System, what we know about them, how large they are, how many there are and what we could do if we discovered one on a collision course with Earth.

Vi studerar stjärnors rörelser i Vintergatan med N-body simuleringar och stora astrometriska dataset från ESAs rymdteleskop Gaia. Vi identifierar två kinematiska populationer för vita dvärgar i Solens kvarter. Vi undersöker även ansamlade halon och avslöjar två nya hastighetsstrukturer. Slutligen, våra simuleringar visar att radiell migrering som en funktion av vertical action beror på diskmassa.We study stellar motions in the Milky Way with N-body simulations and large astrometric samples from ESA's Gaia mission. We identify two kinematic populations for white dwarfs in the Solar neighbourhood. We also investigate the accreted halo and reveal two new structures. Finally, our simulations show that radial migration as a function of vertical action depends on disc mass.

The possibility to make environmental strategy a part of the core strategy through a framework called inside-out/outside-in was suggested by Porter in 2007. Researchers have also stated that the output of implementing a certain strategy ought to be valued during strategy planning. The two areas; environmental strategy and profitability analysis have although not frequently been combined, and thus

Hur skulle stjärnytor se ut om vi kunde observera dem på nära håll? Vanligtvis analyseras stjärnor som om de vore sfäriska gasbollar, men egentligen är deras ytor mer lika ytan i en kastrull med kokande vatten. Detta ”kokande” ger upphov till fina strukturer över hela stjärnans yta. Fysiska egenskaper hos en stjärna, som temperatur och kemisk sammansättning, bestäms vanligtvis genom att mäta stjärStars as we observe them are point source objects and their measured spectra are integrated over the stellar disk. Since the beginning of stellar spectroscopy, stellar parameters are calculated from these spectra. However recently, simulations of stellar atmospheres show that it is not possible to determine stellar parameters in a unique way from disk-averaged data. These 3-dimensional simulations