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Graphs with least eigenvalue -2 attaining a convex quadratic upper bound for th...
Cardoso, Domingos M.; Cvetkovic, D.In this paper we study the conditions under which the stability number of line graphs, generalized line graphs and exceptional graphs attains a convex quadratic programming upper bound. In regular graphs this bound is reduced to the well known Hoffman bound. Some vertex subsets inducing subgraphs with regularity properties are analyzed. Based on an observation concerning the Hoffman bound a new construction of ...
The modulatory effect of estradiol benzoate on superoxide dismutase activity in...
Pejic,S.; Kasapovic,J.; Cvetkovic,D.; Pajovic,S.B.The sensitivity of copper,zinc (CuZn)- and manganese (Mn)-superoxide dismutase (SOD) to exogenous estradiol benzoate (EB) was investigated in Wistar rats during postnatal brain development. Enzyme activities were measured in samples prepared from brains of rats of both sexes and various ages between 0 and 75 days, treated sc with 0.5 µg EB/100 g body weight in 0.1 ml olive oil/100 g body weight, 48 and 24 h bef...
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