Sökresultat

Popular Abstract in Swedish Fotosyntesen är den mest grundläggande förutsättningen för människans överlevnad. Genom att absorbera solenergi och omvandla den till kemiskt bunden energi i form av energirika organiska molekyler, står fotosyntesen för nästan all tillförsel av energi till vårt ekosystem. Energin utnyttjas som mat, till oss och till djuren vi beror av, och som bränsle, fossilt eller färIn this thesis, a new electron paramagnetic resonance (EPR) signal from photosystem II is presented. The signal is shown to originate from the S0 oxidation state of the oxygen-evolving complex (OEC). It is a Mn-derived signal displaying clear hyperfine structure, centered at g=2, and is significantly broader than the well-known multiline signal from the S2 state, indicating the presence of MnII in

Abstract is not available

Popular Abstract in Swedish Läkemedel blir allt viktigare behandlings-instrument och kunskapen ökar om läke-medels verkningsmekanismer. Även om denna kunskap kombineras med resultat från kliniska läkemedelsprövningar är detta dock inte tillräckligt för att värdera kliniska fördelar och risker med en rutinmässig läkemedels-behandling, särskilt inte om behandlingen är långvarig. För detta ändamål beThe efficacy and safety of antihyperglycaemic drugs have been evaluated in one American and one British randomized clinical trial, which have given contradictory results. The positive results of the latter may be more convincing as it included a greater number of patients and as its duration was longer. However, its conclusions may not be applicable to type 2 diabetes patients in general, as the s

The objective of the work presented in this paper is to design and develop a framework for simulation of requirements engineering processes. The framework is intended to be a support when simulation models are built by guiding the modeler in which components to use in this type of models and to speed up the process of developing simulation models. The framework was developed through an iterative p

We raise the question whether there is a rigorous argument favoring one jury system over another. We provide a Bayesian model of deliberating juries that allows for computer simulation for the purpose of studying the effect of jury size and required majority on the quality of jury decision making. We introduce the idea of jury value (J-value), a kind of epistemic value which takes into account the

Collection attributes, as defined by Boyland, can be used as a mechanism for concisely specifying cross-reference-like properties such as callee sets, subclass sets, and sets of variable uses. We have implemented collection attributes in our declarative meta programming system JastAdd, and used them for a variety of applications including devirtualization analysis, metrics, and flow analysis. We p

In Sweden "anonymous living donation'' (ALD) has recently been performed but is still under evaluation. We considered it important to learn more about the thoughts of the volunteers for such a donation. Five persons out of ten people who had volunteered to donate anonymously at the transplant unit at Malmo University Hospital were interviewed. The main reason for the wish to donate was the possibi

This chapter singles out three areas of possible future research, where psychology in collaboration with other social science disciplines may make important contributions: (1) diplomatic signaling, (2) diplomatic culture, and (3) interaction dynamics.

Positioning is a key concept in the fields of branding, marketing, and strategy. In brand management, positioning deals fundamentally with finding a balance between sameness and differentiation. Empirical research predominantly examines the effectiveness of certain strategies. Less is known about the management process and internal brand positioning dynamics. Furthermore, positioning research stil

Asexuals come in all sorts. In this personal overview, I identify asexual organisms with eukaryotes that do not regularly go through the meiotic cycle. Such organisms may be asexual in many different ways and of many different reasons. The spread of asexuality is therefore always a unique process, and any notion of a general evolutionary advantage for asexuality is at best misleading. In discussio

Popular Abstract in English Structural components such as those used in gas turbines for energy conversion applications, are subjected to high loads at elevated temperatures. In order to ensure that the components survive under these conditions for a sufficiently long time, it is imperative to select materials with good high temperature properties like strength and corrosion resistance. Such materStructural components such as those used in gas turbines for energy conversion applications, are subjected to high loads at elevated temperatures. In order to ensure that the components survive under these conditions for a sufficiently long time, it is imperative to select materials with good high temperature properties like strength and corrosion resistance. Such materials are usually alloys with