Aspect-oriented programming has proven to be a useful model for developing software that encapsulates features in separate modules. AspectJ [3], one popular aspect-oriented language, extends Java with pointcuts and advice, which allow the programmer to modify the execution of existing code. However, formal semantics for pointcuts and advice only cover first-order procedural languages. We wish t...

There is much debate on which types of computer-based systems have the most impact in healthcare delivery and patient outcomes. Safety surveillance systems, which have been around for several years, are probably at the top of the list. These provider-oriented clinical decision support systems allow healthcare providers to monitor the safety of medications and other interventions that are critic...

External electric fields can be used to control the reactivity and selectivity of chemical reactions. Using state-of-the-art quantum computations, this work provides a desperately needed causal model explain how judiciously oriented external catalyze steer stereoselectivity Diels–Alder These results provide complete framework for design novel field catalyzed organic More information found in Fu...

There are a number of challenges in applying high-spatial resolution satellite image data for analysis of larger urban areas. This paper explores the use of object-oriented image analysis approaches in mapping urban land cover and land use. The study is based on seven IKONOS images covering the Santa Barbara, CA region. Image processing included geometric and atmospheric correction and image se...

Let A be a basic connected finite dimensional algebra over an algebraically closed field k. Assuming that A is monomial and that the ordinary quiver Q of A has no oriented cycle and no multiple arrows, we prove that A admits a universal cover with group the fundamental group of the underlying space of Q.

My main research interest is software engineering, with a focus on improving programmer productivity. I develop techniques and tools that make both managers and developers aware of history: learning from past successes and failures, helps us create better software. My research activities cover program analysis, aspect-oriented programming, empirical studies, and in particular, the analysis of s...

In this commentary, we elaborate on the necessity to choose among a wider, higher-level conceptual approach and a more concrete, skills oriented one in HCI education, as a result of HCI enlarging scope and curriculum pressures. First, the role and usefulness of more abstract topics are discussed, and second, some reflections on how to cover them in HCI education are presented.

Urban is more sensitive to the change of land use/cover. The up-to-date information of land use/cover is very important for urban decision-making and sustainable development. Very high resolution satellite data are an alternative to monitor, update cartographic and geographic databases. In this paper, an object-oriented pre-parcel land use change detection approach integrating GIS and remote se...