Removal of Ca2+ from PSII lead to impaired electron transfer from YZ to P680+ and to inhibition of S state transitions which results in a modified stable S2 state (probed by a stable multiline EPR signal) and the induction of the S2YZox state ("split" signal) by illumination at 0° C. We have performed an EPR study on the pH dependence of these reactions in Ca2+-depleted PSII (prepared by citrate t

This LUii report presents a research review of the field of over-indebtedness and consumption patterns in digital society, which addresses phenomena such as e-commerce, smart phones and their role in consumption and credit, new methods of payment, debt-incurrence and more. The research review has been produced by researchers at Lund University on behalf of the Swedish Enforcement Authority, why it

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Popular Abstract in Swedish Undersökningar av astrofysikaliska spektra kräver noggranna atomära data, som t.ex. våglängder och övergångssannolikheter. Denna avhandling bidrar med atomära data av hög precision för astrofysikaliska och kosmologiska tillämpningar. Mätningarna har gjorts på ljus producerat i en hålkatodlampa med hjälp av Fouriertransformspektrometri. Genom att observera våglängdsskifInvestigations of astrophysical spectra require accurate atomic data, such as wavelengths and transition probabilities. This thesis provides high-precision atomic data for astrophysical and cosmological applications. The measurements have been carried out using Fourier transform spectrometry on light produced in a hollow cathode light source. The variability of fundamental constants is investigat

The paper discusses the motivation for and outcome of the addition of socially oriented so called “off-task” conversational abilities to an existing “teachable agent” (TA) in an educational mathematics game. The purpose of the extension is to affect constructs known to promote learning, such as self-efficacy and engagement, as well as enhancing students’ experiences of the game. A comparison of st

Popular Abstract in Swedish Populärvetenskaplig sammanfattning Hyaluronan (hyaluronsyra) är en högmolekylär polysackarid som förekommer i all biologisk vävnad i olika koncentrationer, med särskilt höga nivåer i bindväv. Den kan bildas av de flesta celltyper. På molekylär nivå föreligger den i form av ett nystan, har förmågan att binda stora mängder vatten, och har en uttalad pseudoplasticitet. HyaHyaluronan has been found in the eye in varying amounts and at different sites. It is involved in physiological and pathological processes, though many aspects of its bio-logi-cal functions are still unclear. We have studied the role of iris tissue in hyal-uro-nan production in the anterior segment of the eye, and its changes after trauma. After peripheral iridectomy or argon laser treatment, the

Popular Abstract in Swedish Denna avhandling har tre huvudsakliga mål. Det första är att argumentera för en tolkning av politisk frihet som innebär att frihet föreligger i den utsträckning man inte är dominerad av andra: frihet som icke-dominans. Detta skiljer sig från den vanligare tolkningen av frihet som innebär att frihet föreligger i den utsträckning ingen annan interfererar med det man gör: This dissertation argues for an interpretation of liberty in terms of non-domination rather than non-interference, that non-domination can work as an independent criterion of political legitimacy, and that non-domination includes an approximation of equality in socioeconomic goods. In the first part, four theories of liberty and power – those of Kant, Locke, J. S. Mill and H. Taylor, and Wollstone

We present a method to compute, quickly and efficiently, the mutual information achieved by an IID (independent identically distributed) complex Gaussian input on a block Rayleigh-faded channel. The method accommodates both scalar and MIMO (multiple-input multiple-output) settings. Operationally, the mutual information thus computed represents the highest spectral efficiency that can be attained u

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