Single dilution ELISAs were standardised for the determination of antibody titres against Theileria annulata using three antigens namely soluble piroplasm, cellular schizont or soluble schizont antigens. Antibody titres of 20 cattle serum samples of known identity were determined by multi-dilution ELISA using the three antigens. The ratio of the optical density (OD) of known positive and known ...

BACKGROUND Meta-analysis of individual participant time-to-event data from multiple prospective epidemiological studies enables detailed investigation of exposure-risk relationships, but involves a number of analytical challenges. METHODS This article describes statistical approaches adopted in the Emerging Risk Factors Collaboration, in which primary data from more than 1 million participant...

Methods To reach diagnosis this method uses a wide range of biological parameters providing a great deal of significant information in the context of allergy such as lymphocyte typing and protein profiles or the Th1/Th2 differentiation, as well as many bacterial and viral serologies, to substantiate the biological diagnosis and guide the therapeutic result. Within this therapy, numerous immune-...

Monte Carlo simulations of a system consisting of a ferromagnetic layer exchange coupled to a diluted antiferromagnetic layer described by a classical spin model show a strong dependence of the exchange bias on the degree of dilution in agreement with recent experimental observations on Co/CoO bilayers. These simulations reveal that diluting the antiferromagnet leads to the formation of domains...

The purpose of this study was to investigate whether hyphens that disambiguate phrasing in ambiguous sentences influence reading rate and reading comprehension for younger and older adults. Moreover, as working memory (WM) has been implicated in age-related changes in sentence comprehension for both auditory and written materials, we asked if it contributed to comprehension of our sentences wit...

The effect of adding to-be-ignored extra stimuli to a modified Stroop task is investigated. Adding extra stimuli of the same kind as the distractor causes a temporary improvement in performance (Stroop dilution), whereas adding extra stimuli of the same kind as the target causes an improvement in performance that is only detectable when the extra stimuli are removed (post-treatment). An attempt...