Noncentral indefinite quadratic expressions in possibly non- singular normal vectors are represented in terms of the difference of two positive definite quadratic forms and an independently distributed linear combination of standard normal random variables. This result also ap- plies to quadratic forms in singular normal vectors for which no general representation is currently available. The ...

PURPOSE International consensus criteria for antiphospholipid syndrome (APS) require persistently positive antiphospholipid antibodies (aPL) and medium or high titers in association with clinical manifestations. However, the clinical relevance of persistence and titers of aPL in patients with stroke has not been identified. We aimed to investigate the risk of subsequent thrombotic events in pat...

the definiteness feature in english is both lf and pf interpretable while persian is a language in which this feature is lf-interpretable but pf-uninterpretable. hence, there is no overt article or morphological inflection in persian denoting a definite context. furthermore, persian partially encodes specificity not definiteness. in definiteness both the speaker and hearer are involved while in...

Several syntactic and semantic properties of todo N, named bare universal phrase (BUP), and todo(s) o(s) N(s), defined universal phrase (DUP), may be explained by attributing to each quantifier phrase a semantic structure. If our semantic proposal is correct, then Peres’s (1992) claim that the presence of the definite article in the quantifier phrase is vacuous is not right. The semantic struct...

The definiteness feature in English is both LF and PF interpretable while Persian is a language in which this feature is LF-interpretable but PF-uninterpretable. Hence, there is no overt article or morphological inflection in Persian denoting a definite context. Furthermore, Persian partially encodes specificity not definiteness. In definiteness both the speaker and hearer are involved while in...

Kernel methods for data analysis are frequently considered to be restricted to positive definite kernels. In practice, however, indefinite kernels arise e.g. from problem-specific kernel construction or optimized similarity measures. We, therefore, present formal extensions of some kernel discriminant analysis methods which can be used with indefinite kernels. In particular these are the multi-...