Hemagglutination of erythrocytes is a common property of Staphylococcus epidermidis strains, which is related to adherence and biofilm formation and may be essential for the pathogenesis of biomaterial-associated infections caused by S. epidermidis. In three independent biofilm-producing, hemagglutination-positive S. epidermidis isolates, interruption of the icaADBC operon essential for polysac...

An indirect hemagglutination test for the detection of antibodies in swine serum specific for pseudorabies virus is described. The indirect hemagglutination test was less time consuming than the standardized virus nertralization test while being highly sensitive and accurate. Serum samples that were toxic to virus neutralization indicator cells were readily tested in the indirect hemagglutinati...

In this paper, we present a new version of numerically stable fast recursive least squares (NS-FRLS) algorithm. This new version is obtained by using some redundant formulas of the fast recursive least squares FRLS algorithms. Numerical stabilization is realized by using a propagation model of first order of the numerical errors. An advanced comparative method is used to study the efficiency of...

The uropathogenic Escherichia coli strain 536 (O6:K15:H31) exhibits a mannose-resistant hemagglutination phenotype (Mrh) with bovine erythrocytes and delayed Mrh with human and guinea pig erythrocytes. Neuraminidase treatment of the erythrocytes abolishes mannose resistant hemagglutination, which is typical for X fimbriae. E. coli strain 536 synthesizes two different fimbriae (Fim phenotype) pr...

Submitted by Emmanuel Lemoine on Mon, 10/06/2014 18:24 Titre New Extended and Quantified Constraints in XML Schema Type de publication Communication Type Communication avec actes dans un congrès Année 2009 Langue Anglais Date du colloque 2009 Titre du colloque International Conference on Agents and Artificial Intelligence, ICAART 2009 Titre des actes ou de la revue Agents and Artificial Intelli...

A single radial hemolysis assay for parainfluenza-3 virus antibody is described as a simple, sensitive, accurate, and precise alternative to hemagglutination inhibition and serum neutralization tests. A highly significant correlation exists between single radial hemolysis zone areas and hemagglutination inhibition titers of both serum and nasal secretion samples. Antibody conversions equivalent...

Reversed passive hemagglutination was used to assay enterotoxin in culture filtrates and in food samples. With cells tanned and then sensitized with antitoxin globulin and preserved with either formaldehyde or pyruvic aldehyde, as little as 0.0007 mug of enterotoxin was detectable. The results of hemagglutination tests compared well with those obtained by quantitative precipitin tests or by imm...

The variation in penicillin titre within populations of cultures of Aspergillus nidulans derived from untreated conidia and from conidia treated with ethyl methanesulphonate (EMS), near-ultraviolet light in the presence of 8-methoxypsoralen (8MOP) or N-methyl-N'-nitro-N-nitrosoguanidine (NTG), each at several dose levels, was determined. Both mutagentreated and untreated populations showed a co...

Different regimens are used to achieve immune tolerance in patients with severe haemophilia A and inhibitory allo-antibodies against factor VIII (FVIII). In this study, results of 26 years of low dose immune tolerance induction are evaluated. We evaluated 21 patients, who were treated with regular infusions of low dose FVIII (25-50 IU kg(-1) every other day or three times a week) to obtain immu...