The growing complexity of modern computer architectures increasingly complicates the prediction of the run-time behavior of software. For real-time systems, where a safe estimation of the program’s worst-case execution time is needed, time-predictable computer architectures promise to resolve this problem. The stack cache, for instance, allows the compiler to efficiently cache a program’s stack...

We provide a detailed description of Golgi stack biogenesis that takes place in vivo during one of the morphogenetic events in the lifespan of Drosophila melanogaster. In early third-instar larvae, small clusters consisting mostly of vesicles and tubules were present in epithelial imaginal disk cells. As larvae progressed through mid- and late-third instar, these larval clusters became larger b...

In this paper we introduce the notion of a “stack” of geodesic spaces. Loosely speaking, this consists of a geodesic space decomposed into a sequence of “sheets” indexed by a set of consecutive integers. A stack is said to be “hyperbolic” if it is Gromov hyperbolic and its sheets are uniformly Gromov hyperbolic. We define a Cannon-Thurston map for such a stack, and show that the boundary of a o...

Objective: To develop a heuristic framework for students to organize and apply the many concepts of informatics for rapid use. Method: Organization of curriculum material and recurrent refinement by student feedback. An Informatics Stack was developed based on several existing informatics and software-development frameworks comprising several levels of abstraction, from what a system is suppose...

The assessment of seismic performance of existing structures is becoming an important problem in earthquake engineering. Some important ructures are considerably old and, therefore, their strengths and ductilities are less than strength and ductility demands because of changes in codes and design methodologies. Such structures must be strengthened to resist future earthquakes. First, a structur...

We consider the natural generalization of Alexeev and Knutson's stack of branchvarieties to the case of a Deligne-Mumford stack. The main results are a proof that the stack of branchvarieties is always algebraic, that limits of one-dimensional families always exist, and that the connected components of the stack of branchvarieties are proper over the base under certain hypotheses on the ambient...