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The role of connections as minimal norms in normative systems

The paper aims at developing an algebraic representation of normative systems by sets of minimal norms, "connections", within relational structures called condition implication structures. It is shown that, given some general presuppositions, a normative system is completely determined by its set of connections, and that comparisons between normative systems can be made by considering whether conn

Ferrochelatase and Magnesiumchelatase: Metal chelation studied with mutants

Popular Abstract in Swedish Tänk dig en solig sommardag. Du går runt med en glass i handen och mår allmänt bra. Runt om dig finns gröna lummiga träd och vackra blommor i alla möjliga färger. Naturen visar verkligen sin vackraste sida. I dagens samhälle tänker man inte så ofta på den mångfald av färger som omger oss. Den blåa himlen, den gula solen, det röda blodet och det gröna gräset. Kanske beroMagnesium chelatase and ferrochelatase are two very important enzymes, which are involved in chlorophyll and heme biosynthesis, respectively. They both use protoporphyrin IX as substrate but magnesium chelatase inserts a magnesium ion whereas ferrochelatase inserts a ferrous ion. These two enzymes have been studied in this thesis. Even though they both insert a metal ion into protoporphyrin IX the

Meaning Constitution Analysis: A Phenomenological Approach

Each and every thought, word, feeling or action of a person recele a surplus of meaning, opening on all the possible worlds accessible for him/her. A vision on those possible worlds and possibilities of action, should be of the highest interest for psychological research. Research in cross/cultural/intercultural psychology confronts the researcher to language, in conversations, narratives, writing

The African Food Crisis: Lessons from the Asian Green Revolution.

This book is the outcome of a three-year project coordinated by a group of Swedish researchers and with collaborating scholars from Africa and Asia. It provides a comparative study between Asian agricultural development during the Green Revolution in food production and the current problematic agricultural situation in sub-Saharan Africa. Case studies of eight African and eight Asian countries (fo