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Zum Realitätsbezug von Informationsmodellen
Hinsichtlich der rudimentären Auffassung dessen, was ein Modell ist, bestehen kaum Unterschiede zwischen den diversen Modelldefinitionen: „Modelle von etwas (einem Original) und Modelle für etwas (einen Zweck)“ [Bret80, S. VII]. Allerdings bestehen erhebliche Differenzen hinsichtlich des Originals als Ausgangspunkt der Modellbildung und der damit verbundenen Bedeutung des Modellbildungsprozesse...
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A systematic appraisal of a large number of solvent systems was carried out for the separation of lactic, pyruvic and 3-hydroxybutyric acids and all of the KREBS cycle acids, except oxalosuccinic, using silica gel G and cellulose thin layer Chromatographie plates. Four solvent systems which allowed separation of various combinations of acids are described and the limits of this method of separa...
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For many years it has been apparent from estimates of the anion gap and the strong ion gap that anions of unknown identity can be generated in sepsis and shock states. Evidence is emerging that at least some of these are intermediates of the citric acid cycle. The exact source of this disturbance remains unclear, because a great many metabolic blocks and bottlenecks can disturb the anaplerotic ...
متن کاملSeifert Fibered Homology 3 - Spheres Mike Krebs
To each connected component in the space of semisimple representations from the orbifold fundamental group of the base orbifold of a Seifert fibered homology 3-sphere into the Lie group U(2, 1), we associate a real number called the “orbifold Toledo invariant.” Using the theory of Higgs bundles, we explicitly compute all values this invariant takes on.
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ژورنال
عنوان ژورنال: Im Focus Onkologie
سال: 2013
ISSN: 1435-7402
DOI: 10.1007/s15015-013-0420-3