We have previously developed LAOS, a 5-layer adaptive authoring model for adaptive hypermedia, and LAG, a 3-layer adaptation model. Our primary goal is to integrate these two models and to reflect this integration as an extension of MOT, an on-line tool for adaptive hypermedia design. This paper focuses on the integration of LAG and LAOS, and the implications this integration has on the UM and ...

Adaptive Hypermedia content offers personalization; however, (re)using such material with regular Learning Management Systems (LMS) is not yet straightforward. Ideally, materials created once should be usable anywhere. One such vehicle for reusability is represented by e-learning standards. Thus, here we describe the extension and evaluation of My Online Teacher (MOT), an adaptive hypermedia au...

We performed the simultaneous trapping of two isotopes (86Sr and 88Sr) in the red MOT (N.Poli et al. Phys. Rev. A 71, 061403(R) (2005)). Thanks to the low temperature obtained in the red MOT, such isotopic mixture is efficiently transferred into a FORT. We observe fast interspecies thermalization in the dipole trap which allows one to set a lower bound of 70aB on the 86Sr-88Sr elastic cross sec...

We report on an experimental method to align a laser beam to a cloud of atoms trapped in a magneto-optical trap (MOT). We show how balanced lock-in detection leads to a very sensitive method to align the laser beam to the atoms in the plane perpendicular to the propagation direction. This provides a very reliable and fast way of aligning laser beams to atoms trapped in a MOT.