BACKGROUND AND PURPOSE Stroke is emerging as a major public health problem for women, as it is for men. Controversy persists regarding gender differences in stroke incidence, severity, and poststroke disability. METHODS Participants in the Framingham Original (n=5119; 2829 women) and Offspring (n=4957, 2565 women) cohorts who were 45 years and stroke-free were followed to first incident strok...

Within the class of “determinate” object-creating database transformations, identified by Abiteboul and Kanellakis, a natural proper subclass consists of the so-called “constructive” transformations. A determinate transformation is constructive if its input-output pairs satisfy a condition discovered by Jan Paredaens. In this note we point out that when object creation is “tree-structured,” as ...

BACKGROUND Estimates of lifetime cancer risk are commonly used in the clinical setting and in health-care evaluations. These measures are based on lifetime cancer risk estimates and may create an unrealistically frightening perception of cancer risk for an individual. We suggest using two new measures of cancer risk to complement the cancer lifetime risk measure, namely estimates of cancer risk...

Singleton [1] is a creational pattern with well-defined semantics ensuring that the instance is always created prior to use. This effectively solves the problem of initialization order when a number of interrelated objects are involved. But the pattern’s destruction semantics is inadequate for several singletons with complex dependencies among them. A Destruction-Managed Singleton complements t...

We describe a compositional trace logic for behavioural interface specifications and corresponding proof rules for compositional reasoning. The trace logic is defined in terms of axioms in higher-order logic. This trace logic is applicable to any object-oriented programming language. We treat object creation without observing the explicit act of creation. We prove a soundness result of this app...

The positron annihilation lifetime spectroscopy was used to investigate the free volume hole size of ethylene octane copolymers as a function of deformation in the range from 0 to 110% in steps of 10%. For each degree of deformation a series of 5–6 positron annihilation lifetime spectra was collected in situ. All spectra of a given series were analysed simultaneously. They were resolved into th...

A denotational model is presented for the language POOL, a parallel objectoriented language. It is a syntactically simplified version of POOL-T, a language that is actually used to write programs for a parallel machine. The most important aspect of this language is that it describes a system as a collection of communicating objects that all have internal activities which are executed in paralle...