Perfume Bottles designed by Rene Lalique

History of perfume

Potentiation of GABAA Receptors by Perfume and Phytoncid Expressed inXenopusOocytes

To study the effects of perfume and phytonc;d on GABAA receptors, ionotropic GABAA receptors were expressed in Xlanopus eocytes by iajecting mRNAs that had been prepared from rat whole brain. Essential eil, pevfume and such phytoncid as leaf alcehol, hinokitiel, pinene, eugenol, citronellol and citronellal potentiated the response in the presence of GABA at low cencentratiens (10 and 30 "M), po...

From Klein Bottles to Modular Super-Bottles

A modular approach is presented for the construction of 2-manifolds of higher genus, corresponding to the connected sum of multiple Klein bottles. The geometry of the classical Klein bottle is employed to construct abstract geometrical sculptures with some aesthetic qualities. Depending on how the modular components are combined to form these “Super-Bottles” the resulting surfaces may be single...

Macroevolution of perfume signalling in orchid bees.

Theory predicts that both stabilising selection and diversifying selection jointly contribute to the evolution of sexual signalling traits by (1) maintaining the integrity of communication signals within species and (2) promoting the diversification of traits among lineages. However, for many important signalling traits, little is known about whether these dynamics translate into predictable ma...

Joris Hulstijn Rene Steetskamp Hugo Ter Doest

An importantpart of dialoguemanagementin a dialoguesystemis topicmanagementThe systemhas to keep track of topic aspects (current topic, context, obligations,. . . ) in order to be able to resolve ambiguities and to respond in a cooperative and sensible way. In the project, we are developing a system that takes part in a conversation about theater performances and is able to make ticket reservat...