While the pharmacological actions ofadrenergic beta receptor blocking agents specially those pertaining to cardiovascular system have been investigated in detail, there are only scattered reports dealing with their pulmonary vascular effects. Propranolol was shown to exert a variable effect on pulmonary arterial pressure and pulmonary vascular resistance (18). [4-( 2-isopropylamino-I-hydroxyeth...

The management of product-related data in a uniform and consistent way is a big challenge for many manufacturing enterprises, especially the large ones like DaimlerChrysler. So-called Product Data Management systems (PDMS) are a promising way to achieve this goal. For various reasons PDMS often sit on-top of a relational DBMS using it (more or less) as a simple record manager. User interactions...

XML Schema has emerged as a promising data model that unites structured and unstructured content. The Oracle database has led the commercial database community in integrating support for XML Schema inside an enterprise data server. The foundation for this was laid with the absorption of the SQL:1999 'objectrelational' type system in the database, which provided the necessary hierarchical abstra...

RÉSUMÉ. La convergence du développement dans le domaine de la communication sans fil, l’évolution des systèmes de positionnement et des systèmes d’information géographiques (SIG) ont favorisé l’émergence d’un nouveau type de services et d’applications liés à la mobilité et à la localisation. En revanche, les systèmes d’information actuels ne permettent pas la gestion d’informations concernant d...

Vladimir Marangozov kindly scanned, converted to text form with OCR, and made available the following document. Although the document was passed through a spelling checker, readers should be aware that there may be residual typographical errors arising from the OCR process. 2 Overview A property of a computer system that determines its ease of use and its range of applicability is the way it cr...

A new wave of data-intensive and knowledge-based applications|such as data mining and decision support|require the introduction of complex application-speciic aggregate functions. In this paper, we propose extensions for deductive database systems to support these new applications. We develop constructs, formal semantics, and implementation techniques for user-deened aggregates, and describe th...

Two methods of typing group A hemolytic streptococci have been described: slide agglutination and anti-M precipitin tests. The first, developed by Griffith (1), is more extensively used. I t has the distinct advantages of requiring small amounts of serum and culture, and of a quick reaction time when all conditions are favorable. I t has certain disadvantages: The granular growth of some strain...

"Process Re-engineering" is a concept that has been in operation in the manufacturing industry for a number of years. Often, it involves moving an organisation or industry away from its traditionally functional base to process based structures. It is however a relatively new concept in the UK construction industry. This paper will explore the concept of process re-engineering, evaluate its oppo...

This paper describes the design, evaluation, and lessons learned from a project involving the implementation of an immersive virtual environment for children called NICE (Narrative-based, Immersive, Constructionist / Collaborative Environments). The goal of the NICE project was to construct a testbed for the exploration of virtual reality as a learning medium within the context of the primary e...