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Popular Abstract in Swedish Xantofyll cykeln, dens enzym, pigment och regleringThe xanthophyll cycle involves the light-dependent and reversible conversion of violaxanthin to zeaxanthin. Zeaxanthin has been implicated in the protection of the photosynthetic machinery from over-excitation. The enzyme violaxanthin de-epoxidase catalyses the conversion of violaxanthin to zeaxanthin. The enzyme is located in the thylakoid lumen and its activity is strictly pH controlled. Apart f

Popular Abstract in Swedish Denna avhandling handlar till stor del om elementarpartiklars massor. I motsats till många av de andra av elementarpartiklarnas egenskaper, uppvisar partiklarnas massor inget iögonfallande mönster. De antar dessutom värden som spänner över ett mycket stort område. Att förstå partikelmassorna är ett centralt tema i dagens partikelfysik. Egenskapen kiralitet eller "hänthThis thesis deals with different types of chiral fields. The properties of fermion masses are investigated from different poits of view, both within the Standard Model and in extensions of the model. It is shown how mass matrix invariants are used to define the measurables of the quark mixing matrix as invariant functions of the mass matrices. One model is presented where the family pattern is s

We present a technique for simultaneous segmentation and classification of image partitions using combinatorial optimization techniques. By combining existing image segmentation approaches with simple learning techniques we show how prior knowledge can be incorporated into the visual grouping process through the formulation of a quadratic binary optimization problem. We further show how such to ef

Fashion's universal nature does not preclude strong variations in its significance from society to society. As a stratification variable, fashion's importance increases in step with economic growth. Simmel sees the ‘need for distinction’ and the ‘need for union’ as preconditions for fashion, with certain societies lacking the necessary motivation. Variations in fashion's importance have also been

En undersökning har under hösten 2011 genomförts vid Lunds tekniska högskola för att ta reda på attityder till murat och putsat byggande hos byggentreprenörer, arkitekter och köpare av småhus. Murat byggande är en byggnadsteknik som har sin tyngdpunkt i Skåne – här finns merparten av efterfrågan från småhusköparna men även erfarenheterna hos byggentreprenörerna. I övriga regioner är murat byggan

The article investigates notions of subjectivity, pathos, desire and God in the philosophies of Emmanuel Levinas and Abraham Heschel. By bringing the two philosophers into dialogue, the article aims to question Levinas’ conviction that the idea of a personal God, characterized by “divine pathos,” is a mythological remnant which unavoidably leads the subject into idolatry. Furthermore, it challenge

In this paper, it is shown that more than half of the data flow buffer, due to a bit reversed FFT output and cyclic prefix in an OFDM transceiver, can be removed. To achieve this, a new pipelined FFT processor is proposed and a cyclic suffix is used instead of the more commonly used cyclic prefix. The FFT processor is used either with a forward or backward data flow, i.e. performing either a decim

We investigate the CCN activity of freshly emitted biomass burning particles and their hygroscopic growth at a relative humidity (RH) of 85%. The particles were produced in the Mainz combustion laboratory by controlled burning of various wood types. The water uptake at sub- and supersaturations is parameterized by the hygroscopicity parameter, κ (c.f. Petters and Kreidenweis, 2007). For the wood b