Popular Abstract in Swedish Metoder utvecklade inom den statistiska fysiken har visat sig vara användbara även i andra forskningfält såsom datalogi, statistik, ekonomi och molekylärbiologi. I den här avhandlingen undersöks hur en variationell metod, utvecklad för statistisk fysik, kan användas när man löser kombinatoriska optimeringsproblem och när man försöker rekonstruera evolutionsträd. I den Algorithms based on the variational approach, as used in statistical physics, are developed. For constraint satisfaction problems a novel cost function, based on information-theoretic arguments, is introduced, and an algorithm similar to the mean-field annealing algorithm is proposed. It outperforms the conventional mean-field algorithm, and its performance is comparable to good problem-dedicated

Popular Abstract in Swedish Helicobacter pylori är troligen världens vanligaste bakterieinfektion och mer än 50% av jordens befolkning är infekterad. Bakterien orsakar kronisk magkatarr vilket kan utvecklas till sår både i magsäcken och i tolvfingertarmen, samt till magcancer. Behandling med antibiotika, som dödar bakterien, och syrahämmande läkemedel har revolutionerat behandlingen av magsår, somThe Gram-negative genus of Helicobacter consists of many bacterial species that colonize a wide range of animal hosts. The genus can be divided into gastric species that colonize the stomach, and enteric species that preferentially colonize the colon and biliary tree of various animal hosts. Helicobacter pylori cause gastritis, gastro-duodenal ulcer disease and gastric adenocarcinoma and lymphoma

Vilka är de ortodoxa och österländska kyrkorna? Många har säkert hört talas om grekisk-ortodoxa eller syrisk-ortodoxa kristna – men vad utmärker egentligen deras religiösa liv? Och hur ser gruppernas tillvaro ut i Sverige? I SSTs nya publikation om de ortodoxa och österländska kyrkorna i Sverige beskrivs både historia och samtid för en av Sveriges största samfundsgrupper.

Collaboration between academia and industry is believed important for innovation: industry needs academic expertise and know-how and academics need empirical data, test beds and more. So what needs to be improved? A pilot study conducted for BillerudKorsnäs confirms findings in previous research: the main challenge to industry-academia collaboration is the lack of mutual understanding of each oth

This article problematizes piracy a) as a hegemonic discourse and technology of control, aiming to securitize late capitalist accumulation; b) as a practice developed by the multitudes that is compatible to post–Fordist mode of production and to neoliberal norms; and, c) as resistance to dominant mode of late capitalist production, distribution and consumption of immaterial goods. The article addr

The development of advanced computational fluid dynamic codes for turbine design does not substitute the importance of mean-line codes. Turbine design involves mean-line design, through-flow design, airfoil design, and finally 3D viscous modeling. The preliminary mean-line design continues to play an important role in early design stages. The aim of this paper was to present the methodology of mea

In the current discourse over what constitutes successful Extended Producer Responsibility (EPR) policy implementation, there is an on-going debate over the ability of programme design to include an appropriate incentive mechanism to stimulate producers to improve the design of their products for reduced life cycle impacts, and especially the impacts and costs from the end-of-life management. At t

Mounting discoveries of extrasolar planets orbiting post-main-sequence stars motivate studies to understand the fate of these planets. In the traditional 'adiabatic' approximation, a secondary's eccentricity remains constant during stellar mass-loss. Here, we remove this approximation, investigate the full two-body point-mass problem with isotropic mass-loss, and illustrate the resulting dynamical

Abstract in Undetermined“It is simply too much” is a common complaint of the modern age. This book looks at how people and institutions deal with overflow - of information, consumption or choices. The essays explore the ways in which notions of overflow – framed in terms of excess and abundance or their implicit opposites, scarcity and dearth – crop up in a number of contexts such as sociological

A DRIFT study of the adsorption and the (amm) oxidation of toluene was carried out at 150–300°C on a TiO2(B)-supported vanadia catalyst with a loading corresponding to 1.9 Mg V2O5 per m2 of the support surface area. In the absence of NH3 and gaseous oxygen, the adsorption of toluene at 150°C produces benzyl and benzoate intermediates. After one hour at the same temperature, further conversion of b