The International Space Station, a $60 billion project being constructed by 16 nations led by the United States and Russia, currently is a 143-foot-long structure of linked modules weighing 162,000 pounds.
There was something anticlimactic about yesterday's launch of an American and two Russians toward the International Space Station, whose first linked modules are now circling 240 miles overhead, ready to be activated and expanded.
When Destiny was firmly latched and bolted to the American-made Unity connecting node at 2 12 p.m., the complex of linked modules became the largest space station ever put into place, exceeding the volume of Russia's Mir and the earlier American Skylab.
Linked modules can also export their own symbols so that other modules can access them.
The architecture is composed of several linked modules and implements the joint torque control of a planar biomechanical model of the arm, in the presence of external dynamic perturbations.
These tightly linked modules make two-component signal transduction systems respond to environmental changes efficiently.
The model was constructed as three linked modules: the prevalence of eye disease module, the demand module, and the ophthalmologist requirement and supply module.
In cis-acting modules, where the components are fixed with one another and in stoichiometric ratios, high specificity may not be required due to the very high local concentrations of the linked modules.
Such analyses, when applied in the metabolic context, can be thought of as pathway finding methods, uncovering linked modules (or pathways) of genes or proteins that undergo coordinated change as a result of some environmental or genetic perturbation.
Feed-forward motifs tend to be embedded within modules, whereas bi-fan motifs tend to link modules, supporting the notion of a hierarchical network with defined functional modules.
