that the extension mechanism satisfies the demands of outside developers who wish to incorporate new features. Two unusual extensions are presented: Multiscale, which adds the ability to visualize large-scale molecular assemblies such as viral coats, and Collaboratory, which allows researchers to share a Chimera

This paper presents a survey of the Voronoi diagram, one of the most fundamental data structures in computational geometry. It demonstrates the importance and usefulness of the Voronoi diagram in a wide variety of fields inside and outside computer science and surveys the history of its development

This paper integrates elements from the theory of agency, the theory of property rights and the theory of finance to develop a theory of the ownership structure of the firm. We define the concept of agency costs, show its relationship to the ‘separation and control’ issue, investigate the nature

Raising the standards of learning that are achieved through school education is an important national priority. Governments have been vigorous in the last ten years in making changes in pursuit of this aim. National curriculum testing, the development of the GCSE, league tables of school

The U.S. government has been involved in developing security technology for computer and communications systems for some time. Although advances have been great, it is generally perceived that the current state of security technology has, to some extent failed to address the needs of all. [1], [2

We argue that an understanding of the faculty of language requires substantial interdisciplinary cooperation. We suggest how current developments in linguistics can be profitably wedded to work in evolutionary biology, anthropology, psychology, and neuroscience. We submit that a distinction should

ABSTRACT Outside of or without development initiatives, people make a living by using their complex web of relationships. As the matrilineal Tongas of Zambia have experienced external and internal changes since the beginning of the last century, the egalitarian society phrased as “economy

Numerous architectural description languages (ADLs) have been developed, each providing complementary capabilities for architectural development and analysis. Unfortunately, each ADL and supporting toolset operates in isolation, making it di cult to integrate those tools and share architectural

their own projects for open-source development. Our Expertiza system for collaborative learning has been turned into an open-source project by thoroughly documenting its internal structure, and posting it on the ROSE (Repository for Open Source in Education) site. Expertiza There is widespread and growing

This paper examines the impact venture capital can have on the development of new firms. Using a hand-collected data set on Silicon Valley start-ups, we find that venture capital is related to a variety of professionalization measures, such as human resource policies, the adoption of stock option