We propose a simple, general and computationally efficient algorithm for maximum likelihood estima- tion (MLE) of parameters in diffusion and jump-diffusion processes. This is conducted within a Monte Carlo EM-algorithm, where the smoothing distribution is computed using resampling. The results are encouraging as we can approximate the MLE well for the models studied when using simulated data. We

The interference based analysis of Bose Einstein Correlations in the Lund Model has hitherto been limited to simple strings without gluonic excitations. A new fragmentation method based on the Area Law in the Lund Model allows such an analysis to be extended to multigluon strings.

Popular Abstract in Swedish POPULÄRVETENSKAPLIG SAMMANFATTNING: Bakgrund Glaukom (grön starr) är en vanlig sjukdom som drabbar 1-2% av befolkningen över 40 år. Sjukdomen är smygande, symptomfattig fram till sena stadier med utbredd, irreversibel skada på synnerv och synfält, och kan obehandlat därmed leda till allvarligt synhandikapp och i värsta fall blindhet. Grön starr drabbar oftast båda ögoThis thesis is based on data from a large glaucoma screening, comprising 32, 918 elderly citizens of Malmö and data from retrospective analysis of glaucoma patients’ charts from the Eye Department of Malmö University Hospital. The definition of glaucoma was based on reproducible visual field defects and/or glaucomatous optic nerve head damage in both groups. In paper I, including screened individ

This paper investigates an allocation rule that fairly assigns at most one indivisible object and a monetary compensation to each agent, under the restriction that the monetary compensations do not exceed some exogenously given upper bound. A few properties of this allocation rule are stated and the main result demonstrates that the allocation rule is coalitionally strategy-proof.

Summary form only given. When designing symmetric ciphers, security and performance are of utmost importance. When selecting a symmetric encryption algorithm, the first choice is whether to choose a block cipher or a stream cipher. Most modern block ciphers offer a sufficient security and a reasonably good performance. But a block cipher must usually be used in a "stream cipher" mode of operation,

A binary mixture model for soils has been formulated and analyzed. In the model one of the constituents is soil and the other constituent an incompressible liquid. The effects of water are included by formulating a mixture model is formulated as an extension of an existing non-associated elasto-plastic material model for granular materials. This paper is focused on the balance of momentum equation

We have recently reported that the inner layers of the arteries, the intima-media complex, of common carotid artery, move as much in the longitudinal direction as in the radial direction, during the cardiac cycle. In order to study this phenomenon we have developed a high-resolution ultrasonic method that can simultaneously record both the longitudinal and the radial movements of the arterial wall

Popular Abstract in Swedish Min avhandling är en s.k. sammanläggningsavhandling och innehåller fyra delarbeten (I-IV), vilka alla är publicerade i vetenskapliga tidskrifter. I delarbetena redovisas undersökningar av två enzymer, hormonkänsligt lipas (HKL) och proteinkinas B (PKB). HKL är ett sedan länge välkänt enzym, vars huvudsakliga uppgift är att spjälka fett (triglycerider) som lagras i fettcHormone-sensitive lipase (HSL) and protein kinase B (PKB) are enzymes that in different ways are associated with lipid metabolism. While HSL is the well-known lipolytic enzyme responsible for hydrolysis of stored triacylglycerols in adipose tissue, PKB is a recently identified serine/threonine protein kinase, ubiquitously expressed and involved in signal transduction pathways induced by insulin an