Open Educational Resources (OERs) have gained increased attention for their potential to provide equitable and accessible educational facilities for people worldwide. Obviating demographic, economic, and geographic educational boundaries can be the OERs slogan. Realization of this promise is an inevitable target of eLearning, thus offering education new challenges. In this observation paper, we...

In this two centre study, the efficacy of 200 mg mifepristone orally followed 48 h later by 0.4 mg misoprostol orally for menstrual regulation was investigated. The dose of mifepristone was taken the day before the expected day of menstruation. Each volunteer was planned to participate for up to 6 months. A plasma beta human chorionic gonadotrophin (HCG) was measured on the day of mifepristone ...

We present an access method for timeslice queries that reconstructs a past state s(t) of a time-evolving collection of objects, in O(log,, n + Is(t)l/b) I/O ‘8, where Is(t)1 denotes the size of the collection at time t, n is the total number of changes in the collection’s evolution and b is the size of an I/O transfer. Changes include the addition, deletion or attribute modification of objects;...

An n-dimensional chair consists of an n-dimensional box from which a smaller n-dimensional box is removed. A tiling of an n-dimensional chair has two nice applications in some memories using asymmetric codes. The first one is in the design of codes which correct asymmetric errors with limited-magnitude. The second one is in the design of n cells q-ary write-once memory codes. We show an equival...

We propose a tamper-evident storage system based on probe storage with a patterned magnetic medium. This medium supports normal read/write operations by outof-plane magnetisation of individual magnetic dots. We report on measurements showing that in principle the medium also supports a separate class of write-once operation that destroys the out-of-plane magnetisation property of the dots irrev...