Do we desire something because it has value? Or is the value of a thing a consequence of the fact that it is desired? To adopt the former alternative is to involve oneself in the task of providing a theory of value which would make value a property things have as it were prior to their serving as objects of desire. Theories of this sort have been developed inter alia by Meinong, Nicolai Hartman...

In this study we have investigated five quantitative and three semi-quantitative rheumatoid factor assays and the Rose-Waaler assay in 120 patients suffering from rheumatoid arthritis and in 76 with other systemic diseases. All tests measure the IgM anti-IgG antibodies. The correlations between the quantitative tests were all higher than 0.86 and much better than between the quantitative and se...

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By a K3-surface with nine cusps I mean a surface with nine isolated double points A 2 , but otherwise smooth, such that its minimal desingularisation is a K3-surface. It is shown, that such a surface admits a cyclic triple cover branched precisely over the cusps. This parallels the theorem of Nikulin, that a K3-surface with 16 nodes is a Kummer quotient of a complex torus.

We consider a new kind of computational device like Turing machine, so-called circular Post machines with a circular tape and moving in one direction only, introduced recently by the second and the third authors. Using 2-tag systems we construct new nine small universal machines of this kind.

Chromosome morphology was studied in lily genotypes L. candidum, L. × formolongi, L. henryi and L. pumilum, and cultivars ‘Alma Ata,’ ‘Expression,’ ‘Marco Polo,’ ‘Muscadet’ and ‘Star Gazer’ belonging to the horticultural group Oriental hybrids. All genotypes tested represented 2n = 2x = 24 chromosomes. Chromosomal markers were established after Feulgen and silver staining, from analysis of the ...

As the ASME Division of Fluids Engineering celebrates its 90th Anniversary, I make a broad-brush sweep of progress in the field of fluid mechanics during this period. Selected theoretical, numerical, and experimental advances are described. The inventions of laser and computer have profound effects on humanity, but their influence on fluid mechanics is particularly elucidated in this review. [D...

Experiments on model systems have revealed that cytokinesis in cells with contractile rings (amoebas, fungi, and animals) depends on shared molecular mechanisms in spite of some differences that emerged during a billion years of divergent evolution. Understanding these fundamental mechanisms depends on identifying the participating proteins and characterizing the mechanisms that position the fu...

INTRODUCTION Foreign bodies after surgical procedures are not very reported in the literature. It is estimated to have 1 case for 1,300 operations, although in practice the frequency might probably be higher. CASE REPORT A woman, 38 years, submitted to left nephroureterectomy for renal transplantation in 1993. During 9 years, she was asymptomatic, and then she presented intermittent left flan...