Are Student Exchange Programs Worth It? The number of university students participating in exchange programs has risen sharply over the last decade, but a survey of Swiss university graduates (class of 1999 and 2001) shows that participation in student exchange programs significantly prolongs the period of time spent studying at university. Given this fact, the advantages of exchange programs f...

The cerebral metabolic activity of glucose and ketones was compared in ketotic rats with insulin-dependent diabetes mellitus (IDDM) and in normal controls. In the IDDM rats, ketosis had been present < 12 hours and the diabetes was of recent onset. After sufficient infusion of labeled [1-13C]glucose to achieve steady-state levels, the ratio of the fractional enrichment of the metabolites [4-13C]...

The Surveillance Research Program of the American Cancer Society's Department of Epidemiology and Surveillance Research reports its 33rd annual compilation of cancer frequency, incidence, mortality, and survival data for the United States.

Cell migration is a fundamental process that occurs during embryo development. Classic studies using in vitro culture systems have been instrumental in dissecting the principles of cell motility and highlighting how cellsmake use of topographical features of the substrate, cell-cell contacts, and chemical and physical environmental signals to direct their locomotion. Here, we review the guidanc...

Andrew Brook, Kant and the Mind, Cambridge: Cambridge University Press, 1994, 327 p. Martin Kusch, Psychologism, A Case Study in the Sociology of Knowledge, London: Routledge, 1995,327 p. Eva Picardi, La Chemica dei Concetti , Languaggio, Logica, Psichologia, 1879-1927 , Bologna: Il Mulino, 1994, 326p. Edward Stein, Without Good Reason, The Rationality Debate in Philosophy and Cognitive Science...

More than 60 human immunodeficiency virus protease inhibitors were examined for the structure-activity relationship between metabolic stability, CYP3A4 inhibitory potency, and substrate-induced binding spectra with a ferric form of P450 in human liver microsomes. A positive relationship was found between CYP3A4 inhibitory potency and metabolic stability; namely, compounds that were more potent ...

Objective. Scholars continue to debate whether morally charged political issues constitute a distinct type of policy question or produce essentially the same political dynamic as public controversies lacking an overt moral dimension. The debate will not be resolved until scholars test the determinants of putative morality policies with predictors drawn both from morality politics theory and fro...

Since XML becomes a crucial format for representing information, it is necessary to establish techniques for managing XML documents. A possible solution can be found in storing XML data in (object-)relational databases. For this purpose most of the existing techniques often exploit an XML schema of the stored XML data, usually expressed in DTD. But the more complex today’s applications are, the...