This is a pedagogical and (almost) self-contained introduction into the Theorem of Groenewold and van Howe, which states that a naive transcription of Dirac’s quantisation rules cannot work. Some related issues in quantisation theory are also discussed. First-class constrained systems a briefly described in a slightly more ‘global’ fashion.1

Increased recognition of the disproportionately large contribution of newborn health to global child survival has fuelled efforts to address neonatal mortality in resource-limited settings. Stillbirths have not been as well studied despite the fact that more than 3 million stillbirths occur annually, a disease burden that approaches that of postnatal deaths. The poorest countries have the highe...

The new Allen Center for Business Activities is nearing completion between the Cohen House Faculty Club and the old wing of Baker College. The million dollar building was a gift f rom Mr. and Mrs. Herbert Allen. The center, to be finished in June, will house treasurer, cashier, accounting, campus business, and development offices. In addition, the building will be a temporary home for offices a...

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Although the CBSE had a great success in software engineering, only large scale companies concretely use it through their research and development section. Small and medi­ um size enterprises still have some hesitation that deprives them of the various advantages of­ fered by CBSE. This is mainly due to economic constraints that large companies do not have. How can we make them benefit from thi...

“ Students here are basically apat­ hetic," Dean o f Students James Roemer commented to a less than capacity crowd at last n igh t’s security seminar in LaFortune Stu­ dent Center. Eight students were in attendance. The seminar was jo in tly con­ ducted by Roemer, Assistant D irec­ to r o f Security Rex Rakow, and investigator Ann Schelllnger. It focused on the security needs o f women at the U...

Theorem 1.1 (Hrushovski’s Theorem 3.5). Let G be a definable group, X a definable subset, and G̃ be the ∨-definable group generated by X. Suppose all this data is defined over a model M . Suppose μ is an M-invariant translation-invariant ideal on subsets of G̃. Let q be a wide type over M , contained in G̃. Identify q with its ∧-definable set of realizations. Suppose (F) there exist two realizatio...

As these authors observe, the sentences in (1) and (2) are similar in both form and meaning. The truncated clefts in (1) look like the clefts in (2) minus the cleft clause, and in the right contexts, each of the sentences in (1) can be used with the meaning of the corresponding sentence in (2). Following a question like Who went to Hamburg?, (1b) can be used to convey what (2b) conveys, and fol...

The interpretation of adjective-noun pairs plays a crucial role in tasks such as recognizing textual entailment. Formal semantics often places adjectives into a taxonomy which should dictate adjectives’ entailment behavior when placed in adjective-noun compounds. However, we show experimentally that the behavior of subsective adjectives (e.g. red) versus non-subsective adjectives (e.g. fake) is...

Defatted rice bran was treated with subcritical water between 120 and 240°C. The extraction temperature af fected the total carbohydrate and protein contents of the extracts. In the tested temperature range, the total carbohydrate and protein contents were the highest at 180°C and 210°C. The DPPH radical scavenging activity of the extracts increased with increasing extraction temperature up to ...