Due to the evolutionary nature of the design process, engineering design databases need to provide adequate support for versioning of designs corresponding to their different st.ages of evolution. Existing mechanisms of class and object versioning in Object-Oriented Databases fail to capture the design process as a concept in its Fnt.irety. For instance, a new class or object version does not a...

gis have become important tools in public planning activities (e.g, in environmental or utility management). This type of activity requires the creation and management of alternative scenarios, as well as analysis of temporal data evolution. Existing systems provide limited support for these operations, and appropriate tools are yet to be developed. This paper presents a solution to this proble...

This work presents an alternative for the union of temporal data and a version model. The result, the Temporal Versions Model, is able to store object versions and, for each version, the history of its dynamic properties and relationships values. TVM is ideal for modeling time-evolving systems that need to manage design alternatives as versions. An interface for modeling TVM classes is also pre...

The vertex version of detour index was defined during the works on connected graph in chemistry. The edge versions of detour index have been introduced ecently. In this paper, the explicit relations among edge versions of detour index have been declared and due to these relations, we compute the edge detour indices for some well-known graphs.

We suggest new evolutionary scenarios for non-magnetic short orbital period CVs. The first model is the analogy of the 'hibernation scenario' or the 'modern hibernation scenario'. The second one is an extension of Mukai & Naylor (1995) ideas. All models imply a tight connection between permanent superhump systems and classical novae. We highlight the significance of the observed evolution of V1...

This study investigates effects of three prosodic factors—prosodic boundary (Utterance-initial vs. Utterance-medial), lexical stress (primary vs. secondary) and phrasal accent (accented vs. unaccented)—on articulatory and acoustic realizations of word-initial CVs (/nε/, /tε/) in trisyllabic English words. Articulatory measurements include linguopalatal contact (by electropalatography) for both ...

A t the Flemish Institute for Biotechnology (VIB), the PhD students organize an international symposium every 2 years. The authors of this article were all members of the organizing committee this year, and we are proud of the programme on offer, which includes a Nobel Prize winner and many other eminent speakers. Organizing the symposium has been a valuable experience for us, and a worthy addi...

Fixation number 26.2 (1.4) 26.8 (2.3) 33.5 (1.7) 36.0 (0.6) 44.6 (1.4) 51.2 (2.0) Significance n.s. ⁄ ⁄⁄⁄ ⁄⁄⁄ Scanpath length 232.5 (12.3) 237.4 (22.0) 335.0 (22.8) 1047.6 (15.5) 1180.0 (30.3) 1077.2 (43.1) Significance n.s. ⁄⁄ ⁄⁄⁄ n.s. Saccadic amplitude 8.8 (0.2) 8.3 (0.3) 8.0 (0.5) 30.4 (0.3) 27.8 (0.4) 23.4 (1.1) Significance n.s. n.s. ⁄⁄⁄ ⁄⁄⁄ Fixation duration 277.4 (11.1) 279.3 (11.1) 293...

We show that the recently discovered short period supersoft source in M31 is probably a progenitor of a magnetic CV. The white dwarf spins asynchronously because of the current high accretion rate. However its fieldstrength is typical of an AM Herculis system, which is what it will ultimately become.We discuss the relevance of this system to CV evolution, and its relation to some particular CVs...