In object oriented programming, the functionalities of a system result from the interactions (message exchanges) among the objects allocated by the system. While designing object interactions is far more complex than designing the object structure in forward engineering, the problem of understanding object interactions during code evolution is even harder, because the related information is spr...

We study a flexible class of finite disc process models with interaction between the discs. We let U denote the random set given by the union of discs, and use for the disc process an exponential family density with the canonical sufficient statistic only depending on geometric properties of U such as the area, perimeter, Euler-Poincaré characteristic, and number of holes. This includes the qua...

We describe a graphical system for automatically generating multiple 2D diagrams of ligand-protein interactions from 3D coordinates. The diagrams portray the hydrogen-bond interaction patterns and hydrophobic contacts between the ligand(s) and the main-chain or side-chain elements of the protein. The system is able to plot, in the same orientation, related sets of ligand-protein interactions. T...

The UML 2 Interaction Overview Diagram (IOD) provides a visual representation of system‟s overall interactions. The UML 2 IOD visualizes the behaviour of a system only for the interaction among the components and also a partial order between send and receive message events; however the semantics of communication among the interaction occurrences and process execution policy remains vague. It do...

STAIRS is a method for the step-wise, compositional development of interactions in the setting of UML 2.x. UML 2.x interactions, such as sequence diagrams and interaction overview diagrams, are seen as intuitive ways of describing communication between different parts of a system, and between a system and its users. STAIRS addresses the challenges of harmonizing intuition and formal reasoning b...

Although using diagrams is generally considered one of the most effective strategies for solving math word problems, research and educational practice reports indicate that students lack spontaneity in their use of diagrams. In an attempt to address this problem, the present study investigated the hypothesis that creating situations whereby students have to teach other students how to solve mat...

To help us understand how bioregulatory networks operate, we need a standard notation for diagrams analogous to electronic circuit diagrams. Such diagrams must surmount the difficulties posed by complex patterns of protein modifications and multiprotein complexes. To meet that challenge, we have designed the molecular interaction map (MIM) notation (http://discover.nci.nih.gov/mim/). Here we sh...

Using an audio-only diagraming tool, sixteen pairs of sighted individuals collaborated in a workspace where they used sound as the only means to communicate with each other and to access and edit shared entity-relationship diagrams. We examined the effects of the means for delivering audio to such a workspace – using headphones or speakers – on pairs’ workspace awareness. Results showed that pa...

A method is described to calculate and visualize the interaction forces of ligand-receptor complexes. Starting from an X-ray crystallographic structure, a "thawing" procedure results in a force-field energy-minimized geometry which is close to the crystallographic starting point. By subtracting non-bonded interactions of the ligand with each amino acid residue and using the resulting force vect...

In this paper, we propose a new method for designing rich internet applications. The design process uses results from an object-oriented analysis and employs interaction spaces as the basic abstraction mechanism. State diagrams are employed as refinements of interaction spaces and task models to specify synchronization events and follow up actions on the client and server side. The notation is ...