Classical Hodge theory gives a decomposition of the complex cohomology of a compact Kähler manifold M , which carries the standard Hodge structure {H(M), p + q = k} of weight k. Deformations of M then lead to variations of the Hodge structure. This is best understood when reformulating the Hodge decomposition in an abstract manner. Let HC = HR ⊕ C be a complex vector space with a real structure...

Objective(s): Resistance to carbapenems is the principal reason for the continuing utilization of colistin as a last resort choice for treating the infections resulted from multidrug carbapenem-resistant Pseudomonas aeruginosa (CRPA) isolates. The assessment of antimicrobial resistance pattern, the prevalence of carbapenem-resistance determinants, and molecular epidemiology of colistin-resistan...

background: toxoplasma gondii can infect all warm-blooded animals. modified agglutination test (mat) and elisa are widely used for the detection of t. gondii antibodies. however, there is little information on their acceptability for detecting antibodies in companion animals. methods: this study compared elisa and mat for their ability to detect t. gondii infection in natu­rally infected dogs a...

The functional relationship between the detection of carbapenemase activity and phenotypic resistance in Gram-negative bacterial pathogens is often ill-defined. To address this issue, we developed a two-tiered Modified Hodge Test approach for carbapenemase detection and typing, in which the use of Pseudomonas aeruginosa strain PAO1 and Escherichia coli as indicator strains conferred two levels ...

Staphylococcus aureus is a common cause of hospital-acquired infections. This bacterium is resistant to β-lactam antibiotics. The aim of this study was to evaluate the prevalence of S. aureus strains producing enzymes capable of destroying β-lactam antibiotics in a hospital environment. This descriptive and analytic study was performed in Besat Hospital, Sanandaj, Iran, 2016, on 158 swabs colle...

Oxacillinase (OXA)-48-like carbapenemases remain relatively uncommon in the United States. We performed phenotypic and genotypic characterization of 30 Enterobacteriaceae producing OXA-48-like carbapenemases that were recovered from patients during 2010-2014. Isolates were collected from 12 states and not associated with outbreaks, although we could not exclude limited local transmission. The a...

An imipenem-resistant Escherichia coli strain was isolated from the urine of a local 72-year-old female Chinese patient in 2006. The carbapenem MICs by Etest (bioMérieux SA, Marcy l’Etoile, France) were ertapenem at 2 g/ l, meropenem at 4 g/ l, and imipenem at 32 g/ l. A modified Hodge test was weakly positive. The presence of a metallo-lactamase (MBL) was suspected because of enhancement of th...

conclusions the incidence of mbls producing p. aeruginosa in patients with cf was not low. the findings indicate that the identification of drug-resistance patterns in p. aeruginosa and the detection of mbl-producing isolates are important in the prevention and control of infections. background respiratory infections caused by pseudomonas aeruginosa play an important role in the pathogenesis of...

We propose a generalization of the notion of R-split mixed Hodge structure by defining a Rsplitting level for mixed Hodge structures. This is a discrete invariant taking values in positive integers and equal to 0 for R-split mixed Hodge structures. We describe some properties of this invariant for classical operations on these structures and give some explicit calculation. Résumé Nous proposons...

where ψi = c1(Li) is the first Chern class of Li, and λj = cj(E) is the j-th Chern class of the Hodge bundle. Hodge integrals arise in the calculations of Gromov-Witten invariants by localization techniques [14, 7]. The explicit evaluation of Hodge integrals is a difficult problem. The Hodge integrals involving only ψ classes can be computed recursively by Witten’s conjecture [26] proven by Kon...