Model checking is a method for the verification of systems with respect to their specifications. Symbolic model-checking, which enables the verification of large systems, proceeds by evaluating fixed-point expressions over the system’s set of states. Such evaluation is particularly simple and efficient when the expressions do not contain alternation between least and greatest fixed-point operat...

The goal of this survey is to study some classes of groups determined by different types of complementation of their normal subgroup lattices. The groups whose normal subgroup lattices are Stone lattices, boolean lattices or ortholattices will be also investigated. MSC (2000): Primary 20D30, Secondary 20E15, 06C15, 06D15.

Genetically encoded bioluminescent indicators for intracellular Ca2+ are described here with CaM-M13 interaction-induced complementation of split Renilla luciferase. The Ca2+-induced interaction between CaM and M13 leads to complementation of the N- and C-terminal halves of split Renilla luciferase in living cells. This intramolecular interaction results in the spontaneous and simultaneous emis...

A cytogenetic analysis of the 43A-E region of chromosome 2 in Drosophila melanogaster is presented. Within this interval 27 complementation groups have been identified by extensive F2 screens and ordered by deletion mapping. The region includes the cellular polarity genes prickle and spiny-legs, the segmentation genes costa and torso, the morphogenetic locus sine oculis and is bounded on its di...

A complementation test was devised to study allelism among the genetic determinants of resistance to 5-fluorocytosine in Candida albicans. Complementation was demonstrated in control hybrids produced by crossing a resistant strain that was deficient in cytosine deaminase activity with four other resistant strains deficient in UMP pyrophosphorylase activity. This complementation test was used to...

Functional complementation of the Saccharomyces cerevisiae glycogen branching enzyme deficiency was screened to isolate human cDNAs that encode this enzyme. Human hepatoma cell line HepG2-derived cDNA libraries using the pAB23BXN yeast expression vector yielded four cDNAs capable of complementing the glc3::TRP1 glycogen branching enzyme mutation. Complementation was recognized by an altered iod...

The paper demonstrates the non-closure of family unambiguous linear languages (that is, those defined by context-free grammars) under complementation. To be precise, a particular grammar is presented, and it proved that complement this language not any grammar. This also constitutes an alternative proof for result Hibbard Ullian (“The independence inherent ambiguity from complementedness among ...

Here we present the draft genome sequence of Janthinobacterium sp. strain CG3, a psychrotolerant non-violacein-producing bacterium that was isolated from the Cotton Glacier supraglacial stream. The genome sequence of this organism will provide insight as to the mechanisms necessary for bacteria to survive in UV-stressed icy environments.

Task Force 3: Training in Diagnostic Cardiac Catheterization and Interventional Cardiology Chair: Alice K. Jacobs, MD, FACC, Boston, Massachusetts David P. Faxon, MD, FSCAI, Chicago, Illinois (Society for Cardiac Angiography and Interventions Representative) John W. Hirshfeld, Jr., MD, FACC, Philadelphia, Pennsylvania David R. Holmes, Jr., MD, FACC, Rochester, Minnesota Task Force 4: Training I...

In an effort to isolate novel meiotic mutants that are severely defective in chromosome segregation and/or exchange, we employed a germline clone screen of the X chromosome of Drosophila melanogaster. We screened over 120,000 EMS-mutagenized chromosomes and isolated 19 mutants, which comprised nine complementation groups. Four of these complementation groups mapped to known meiotic genes, inclu...