Showing papers by "Charité published in 1983"
TL;DR: Incomplete preference structures are composed of three relations: preference, indifference and incomparability as discussed by the authors, and they can be modeled using interval orders or semi-orders, and three approaches are proposed: first, in relation to comparability graph characterization; second, in relations to order dimension theory; and third, representation of the structures on the real line.
5 citations
TL;DR: A new case of rhumatoid nodulitis is reported in a 28 year old man presenting with rapidly regressive arthralgia, numerous rhumatoids nodules and metatarsal lesions without signs of associated arthritis.
Abstract: A new case of rhumatoid nodulitis is reported in a 28 year old man presenting with rapidly regressive arthralgia, numerous rhumatoid nodules and metatarsal lesions without signs of associated arthritis. The biochemical profile was non-specific; serology was weakly positive for rhumatoid factor; there was no obvious immunological disorder (no circulating immune complexes, total complement and its various fractions within normal limits). The clinical findings, treatment and classification of this condition are discussed with reference to six other published cases with a similar clinical and paraclinical features.
4 citations
TL;DR: In this paper, it was shown that with the aid of a schlieren optical mode described in real electron microscopes, the amplitude contrast of weak objects can be enhanced up to two-fold in comparison with the bright-field mode, if a part of the unscattered beam strikes the objective aperture.
1 citations
TL;DR: At short term action of submaximal temperatures during the time of one cell generation only minor changes in the anabolism were found and a fast return of the culture to normal parameters of growth and development was possible.
Abstract: Long term influence of a submaximal temperature (39.5 °C) on a continuous culture of Saccharomyces cerevisiae in a pH-stat resulted in a reduction of its growth rate from 0.3 h−1 to 0.04 h−1. In consequence of an altered anabolism of the yeast cells a strong and irreversible decrease of the contents of intracellular polymers (DNA, RNA and protein) was stated. Additional changes in the energy metabolism, e.g., the activation of anaerobic pathways of substrate utilization were reversible. A yeast with new physiological features was the results.
At short term action of submaximal temperatures during the time of one cell generation only minor changes in the anabolism were found and a fast return of the culture to normal parameters of growth and development was possible.