Dissertation Abstracts International

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Traditionally GISs employ purely quantitative methods to represent and infer
spatial information. This approach has serious shortcomings when dealing with
qualitative spatial information, which may be incomplete or imprecise and does
not contain knowledge of the geometry of the spatial objects, which humans are
particularly adept at utilising in their daily lives. A crucial part of this human
commonsense reasoning is the representation and manipulation of knowledge
about time and ...

Index To American Doctoral Dissertations

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AOD9965688 Robblee, Karen M. Quantum science in secondary chemistry:
Influence of teachers' beliefs and knowledge on the use of interactive computer
models. Kd.D. 2000. ADD9953778 Wigglesworth, John C. Spatial problem-
solving strategies of middle school students: Wayfinding with geographic
information systems. Ed.D. 2000. ... AOD9955543 Holden, James R. Influences
on the selection of content in mammalogy courses: A quantitative and qualitative
study. Ph.D. 1999.

Bulletin Of The Atomic Scientists

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Not only does it focus on a region where environmental change has been
dramatic, but it provides essential information for the understanding of planet-
wide environmental processes. As William D. Mc- Elroy, director of the National
Science Foundation, observes, man must continue to increase his knowledge of
his planet in order to live productively on it. RECORD OF THE REPTILES When
Ernest Shackleton found coal in the Trans- antarctic Mountains nearly 70 years
ago, it became ...