MAT-B1 and MAT-C1 ascites sublines of the 13762 rat mammary adenocarcinoma both contain sialomucin as a major cell surface component and are resistant to cytolysis by normal rat spleen lymphocytes [3 +/- 2% (SD) and 0 +/- 1%, respectively]. Susceptibility to lysis did not increase following treatment of cells with neuraminidase, fucosidase, or alpha- or beta-galactosidase. Treatment with trypsi...

Studies of heterothallic and homothallic strains of Saccharomyces cerevisiae have led to the suggestion that mating-type information is located at three distinct sites on chromosome 3, although only information at the mating-type (MAT) locus is expressed (Hicks, Strathern and Herskowitz, 1977). We have found that the recessive mutation cmt permits expression of the normally silent copies of mat...

We read the article by Dutta et al on “Leptospirosis An Overview” with interest.1 The problem in utilizing microscopic agglutination test (MAT) has been highlighted and we shall discuss briefly the current status of MAT. MAT is considered the gold standard test for diagnosis of leptospirosis. It has unsurpassed specificity, but its sensitivity is low compared to ELISA/SAT (Slide agglutination t...

Let A be a well-formed formula of first-order modal logic whose only free variable is x. We shall use the following abbreviations: Mat(A) for (x)[OA * 0~A] Form(A) for (x)[DA vD-i] Ban(A) for ((x)DA) v ((x)U~A) Pred(A) for Form(A) v Mat(A). We read Mat(A), FormjA), and Ban(A) respectively as: "A is material", "A is formal", and "A is banal"; Pred(A) is the assertion of the Principle of Predica-...

We investigated the mechanism of nitric oxide (NO) action on hepatic methionine adenosyltransferase (MAT) activity using S-nitrosoglutathione (GSNO) as NO donor. Hepatic MAT plays an essential role in the metabolism of methionine, converting this amino acid into S-adenosylmethionine. Hepatic MAT exists in two oligomeric states: as a tetramer (MAT I) and as a dimer (MAT III) of the same subunit....

DNAs that encode the mating-type functions (mat+ and mat-) of the filamentous fungus Podospora anserina were cloned with the use of the mating-type A probe from Neurospora crassa. Cloning the full mat information was ascertained through gene replacement experiments. Molecular and functional analyses of haploid transformants carrying both mating types lead to several striking conclusions. Mat+ m...

Given a simple directed graph D = (V,A), let the size of the largest induced acyclic tournament be denoted by mat(D). Let D ∈ D(n, p) (with p = p(n)) be a random instance, obtained by randomly orienting each edge of a random graph drawn from G(n, 2p). We show that mat(D) is asymptotically almost surely (a.a.s.) one of only 2 possible values, namely either b∗ or b∗ + 1, where b∗ = ⌊2(log r n) + ...

Measuring interface pressure (IP) is one way to characterize cushion performance in the clinic and laboratory. This study explored how the presence of four commercially available IP mats affected IP on and immersion of two buttocks models. We loaded seven cushions with each buttocks model and captured pressure data using FSA sensors (Vista Medical Ltd; Winnipeg, Manitoba, Canada). Analysis was ...