Titlebook: Mathematical Foundations of Computer Science 1980; 9th Symposium Held i P. Dembiński Conference proceedings 1980 Springer-Verlag Berlin Hei

強化

Conceptual relations between databases transformed under join and projection,queries and of allowing equal (or corresponding) updates. After discussing some basic properties of the concepts introduced, the case in which conceptual relations (inclusion or equivalence) among data bases may be proved by means of transformations based on projections and joins is examined in deta

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Neutral-Spine

chandel

On and/or schemes,cision trees and combinational networks, are naturally embedded in the and/or language. These observations pose some interesting questions for further research. As a first result in the metatheory of and/or schemes, we prove a normal form theorem showing that with the addition of “auxiliary variable

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tem specimens, and the validation of changes in animal models of schizophrenia. Recently, several risk genes for schizophrenia have been identified, providing specific targets for the development of diagnostic tests and therapeutic interventions..In this chapter, we review basic concepts of the clin

Self-Help-Group

Dines Bj?rnersl?hmung durch Diabetes oder chronischen Alkoholabusus. Deutlich zugenommen haben in den letzten Jahren die . einzelner peripherer Nerven, wie Abb. 86 (aus .) zeigt. Mit welcher H?ufigkeit die Nerven betroffen sind, ist aus Abb. 87 (.) zu erkennen. Diese Zunahme steht in Zusammenhang mit der heute a

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