salmonellosis is one of the most important zoonotic diseases worldwide. salmonella infections in wild birds are reported frequently. the objectives of this study were to isolate salmonella serovars from a large collection of samples obtained from pet birds in tehran, iran, and then to determine the serotypes and antimicrobial susceptibility profile of the isolates. between october 2007 and augu...

In a critical review (Thomas and Baker, 2012), we argued for caution in evaluating reports of training-dependent adult structural plasticity measured with MRI. Here, we respond to the commentaries on our review, clarifying our position and addressing some of the specific criticisms raised.

During the liulf year ending January 31, 1911, there have been two groups of boys in a special class in Girard College, one group known as the "Retarded Class," the other as the "Delinquent Class." There were twenty-four boys in the Retarded Class and twenty-eight in the Delinquent Class. Retarded boys are those who have remained unduly long in a grade without promotion, the repeating having be...

The aim of this paper is to prove that the Dedekind zeta function for a number field has a meromorphic continuation to the complex plane, obtaining the analytic class number formula with it, and to present some of the applications of these results. In particular, It will be shown its use in proving Dirichlet’s prime number theorem and in calculating the class number of quadratic fields. The pro...

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Whaley’s Theorem on the existence of large proper sublattices of infinite lattices is extended to ordered sets and finite lattices. As a corollary it is shown that every finite lattice L with |L| ≥ 3 contains a proper sublattice S with |S| ≥ |L| 3 . It is also shown that that every finite modular lattice L with |L| ≥ 3 contains a proper sublattice S with |S| ≥ |L| 2 , and every finite distribut...

OBJECTIVES To investigate the relationship between accumulated health-related problems (deficits), which define a frailty index in older adults, and mortality in population-based and clinical/institutional-based samples. DESIGN Cross-sectional and cohort studies. SETTING Seven population-based and four clinical/institutional surveys in four developed countries. PARTICIPANTS Thirty-six tho...

Colibacillosis accounts for significant losses to the poultry industry, and control efforts are hampered by limited understanding of the mechanisms used by avian pathogenic Escherichia coli (APEC) to cause disease. We have found that the presence of the increased serum survival gene (iss) is strongly associated with APEC but not with commensal E. coli, making iss, and the protein it encodes (Is...