background and objectives: the emergence of plasmid-mediated ampc (pampc) β-lactamases conferring resistance to third-generation cephalosporins has become a major clinical concern worldwide. the aims of this study were to determine the prevalence of pampc-producing e. cloacae isolates and typing of them in qazvin and tehran provinces, iran. materials and methods: a total of 120 cefoxitin non-su...

Early Identification of Children with High Risk of Reading Failure Seymour Feshbach Howard Adelman University of California, Los Angeles University of California, Riverside Two alternative models for identifying kindergarten age children with a high risk of becoming reading failures are compared. One model places primary emphasis on psychometric test procedures assessing linguistic and perceptu...

The following ERIC Digest, written by Nancy Darling of Pennsylvania State University, discusses four types of parenting styles and the possible impact of the different parenting techniques.. ERIC Digests are short reports on topics of current interest to parents, policy makers, educators, and other practitioners. Other ERIC Digests are available on the ERIC/EECE Web site at http://ericeece.org/...

W. M. Hirsch proposed a beautiful conjecture on diameters of convex polyhedra, which is still unsolved for about 50 years. I suggest a new method of argument from the viewpoint of deformation and moduli of polytopes. As a consequence, for example, if there are at least 3 disjoint geodisics for all Dantzig figures, as in the 3 dimensional case, the conjecture follows.

The paper is devoted to an invertible linear operator whose inverse is a Hilbert Schmidt operator and imaginary Hermitian component is bounded. Numerous regular differential and integro-differential operators satisfy these conditions. A sharp norm estimate for the resolvent of the considered operator is established. It gives us estimates for the semigroup and so-called Hirsch operator functions...