There are a number of problems associated with current windowing environments, such as the lack of consistency both within and between applications, the poor integration between applications, little or no interoperability, ‘hard-wired’ and inflexible interfaces, and the enormous cost of producing applications. These problems are examined, and a unified approach that addresses them is presented....

The Consortium on Automated Analytical Laboratory Systems (CAALS) has been formed with interested parties from the private sector and other government agencies at NIST to foster the creation of automated chemical analysis systems that will improve the quality of analytical data, facilitate the entire analytical process, and promote the standardization and transfer of analytical methods, while p...

An algebraic speciication of the-calculus is described. The speciication covers valid substitutions, , , and conversions, left-most reductions, and let-constructs for-deenitions. The complete speciication of the-calculus is given. By deriving parsers from signatures, and term rewriting systems from equations, tools are generated automatically from the speciication. Combining these tools by mean...

Johannes Holtfreter [6] made important discoveries about the properties of the organizer [7] discovered by Hans Spemann [8]. Although he spent much time away from the lab over many years, he was a productive researcher. His colleagues noted that the time he spent away helped revitalize his ideas. He is credited with the development of a balanced salt medium to allow embryos to develop; the disc...

Attempts at Cloning the Rat Mesangial Cell Na+-Dependent and Na+-Independent Cl--HCO3Exchange Proteins Based Upon DNA Homology to the Chloride-Bicarbonate Exchange Protein AE-1 (Band 3): Identification and Sequence of a Unique 1.7 kb Partial-Length cDNA Clone. Ahmed M. Abou-Zamzam, Bruce A. Davis,b William C. Summers,a and Walter F. Boron.b aDepartment of Therapeutic Radiology, and bDepartment ...

This document discusses the ergonomic problems with currently available software products, and what in general is necessary in order to make an application pleasant to work with. The application of these principles to a new open-architecture user interface system, Views, is then described. 1991 Mathematics Subject Classification: 68U99. 1991 CR Categories: H.1.2, H.5.2, D39, H.5.0, I.7.2.