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Follow-up studies are needed to confirm whether a significant difference in hazardous drinking of first year male students compared to seniors reflects the influence of university policy or merely precedes drinking acculturation.

The ant fauna in fynbos and forest habitats in the southern cape are compared. There is no significant difference in ant species richness between the two undisturbed habitat types, and the only two species common to both are Acantholepis capensis and Camponotus maculatus. The degree of Hakea sericea infestation in the fynbos negatively affected ant species richness. Ant species richness in the Afromontane forest decreased from the drier to the wetter sites. The aggressive alien ant species, lridomynnex humilis. has not invaded natural areas to any great extent.Die mierfauna in fynbos-en inheemse woud-habitatte in die Suid-Kaap is vergelyk. Daar is geen beduidende verskille in mierspesieverskeidenheid tussen die twee onversteurde habitat-tipes nie. Slags twee spesies. Acantholepis capensis en Camponotus maculatus is in albei habitatte aangetref. Die mate van Hakea sericea besmetting in die fynbos verminder mierspesieverskeidenheid. Mierspesieverskeidenheid in die Afrikaanse berQwoud het 'n afname getoon van die droeer na die natter persele. Daar is nag geen beduidende indringing van die aggresiewe uitheemse mierspesie, lridomynnex humilis, in natuurlike habitatte nie.

The conjugation of dihydroartemisinin to ethylene glycol units of various chain lengths through etheral linkage led to water-soluble derivatives. The strategy did not result in an increase of antimalarial activity compared with artemether. It is nevertheless a promising approach to further investigate and synthesize water-soluble derivatives of artemisinin that may be more active than artemether by increasing the ethylene glycol chain length.

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