The status ofthe Ephebarch

Performance ofthe Runway-Status Light System at Logan Airport

.. Runway incursions are a persistent problem in airport ground-movement operations. Numerous critical conflicts and several fatal accidents have occurred as a result of unauthorized or otherwise inappropriate entry of aircra& or surface vehicles onto an active runway. Many of these conflicts developed quickly, leaving little time for effective intervention by either the controller or the pilot...

Initial effects ofthe grounding ofthe tanker Braer

Objective-To determine if the oil spillage from the tanker Braer had any immediate health effects on the exposed resident population. Design-Cohort study with a comparison against controls, exposure status being assigned on the basis ofgeographical location. Setting-Rural Shetland. Subjects-All those resident on or after 5 January 1993 (day 0) within 4 5 km of the site of tanker's grounding. Co...

The Descriptive Complexity ofthe

We investigate the complexity of the xed-points of bounded formulas in the context of nite set theory; that is, in the context of arbitrary classes of nite structures that are equipped with a built-in BIT predicate, or equivalently, with a built-in membership relation between hereditarily nite sets (input relations are allowed). We show that the iteration of a positive bounded formula converges...

on the status of mixed methods research in applied linguistics

چکیده ندارد.

The Representation and Approximation ofthe