Lakes are excellent sensors of environmental change, including climate change. Chironomids (Insecta, Diptera) and ostracods (Crustacea) are among the most useful biological indicators for paleoenvironmental reconstruction found in lake sediments, due to their sensitiveness to environmental variables. However, the use…

Corallus annulatus (Northern Annulated Tree-boa) is a little-studied tropical Boid occurring disjunctively throughout Central America and tropical South America in mostly lowland tropical moist and wet forests (Holdridge, 1967; Stafford & Henderson, 1996; Smith & Acevedo, 1997; Henderson et al.,…

The use of clocks for timekeeping seems to be a straightforward and almost intuitive routine. Glancing at mechanical clocks designed in Edo period Japan, however, we witness how modern-day intuitions betray our attempts to understand devices created in a culture…

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

by Shawn W. Ritchie., Thesis (S.M.)--Massachusetts Institute of Technology, System Design and Management Program, 1999., Includes bibliographical references (leaves 80-81).

This project investigates how doctoral students make
‘learning leaps’ to recognise and cross conceptual
and skills thresholds in their research and ways in
which they can be best supported to do so. It
responds to current national and international
concerns…

The assessment is the most complicated task in the teaching work and it should be especially useful to improve the features and results of the learning process proposed at the beginning of an academic year. It must incorporate tools with…

Well-known methods for solving the shape-from-shading problem require knowledge of the reflectance map. Here we show how the shape-from-shading problem can be solved when the reflectance map is not available, but is known to have a given form with some…

Well-known methods for solving the shape-from-shading problem require knowledge of the reflectance map. Here we show how the shape-from-shading problem can be solved when the reflectance map is not available, but is known to have a given form with some…

Morphological analysis requires knowledge of the stems, affixes, combnatory patterns, and spelling-change processes of a language. The computational difficulty of the task can be clarified by investigating the computational characteristics of specific models of morphologial processing. The use of finite-state…