We show that countable metric spaces always have quantum isometry groups, thus extending the class of known to possess such universal quantum-group actions. Motivated by this existence problem we define and study notion loose embeddability a space (X,dX) into another, (Y,dY): an injective continuous map preserves both equalities inequalities distances. 0-dimensional compact are “generically” lo...

Organizational theories frequently rely on notions of sharing and dependence among organizational participants, but researchers usually focus on characteristics of the actors themselves instead of the relational patterns among the actors. Loose coupling is one conceptual tool that emphasizes relational patterns. Loose coupling, however, is an abstract metaphor that is simultaneously fertile and...

posed a visualization problem she and I have been interested in for several years. The problem is that of visually representing a 2D field of data that has multiple data values at each point. For example, 2D fluid flow has a vector value at each location and derived values are often available at each location. Interrante suggests using natural textures to attack this problem, because the textur...

This paper deals with formal foundations for a subset of the UML notation (subset of class diagrams and constraints in OCL). There are already various proposals for semantics of UML and a few for OCL. Nevertheless, it is argued that these approaches are not fully adequate for building a conceptual bridge between the programming artifacts produced from UML/OCL and the formal semantics. A differe...

Any which way but loose back-to-back arrangement of kinetochores is not needed for correct alignment on the mitotic spindle, as shown by Hilary Dewar, Tomoyuki Tanaka (University of Dundee, UK), and colleagues. Sister chromatids are glued together by cohesin such that their kinetochores face opposing poles. This arrangement might thus prevent both chromatids from attaching to spindle microtubul...