The Heawood graph and K3,3 have the property that all of their 2–factors are hamiltonian cycles. We call such graphs 2–factor hamiltonian. More generally, we say that a connected k–regular bipartite graph G belongs to the class BU(k) if for each pair of 2-factors, F1,F2 in G, F1 and F2 are isomorphic. We prove that if G ∈ BU(k) , then either G is a circuit or k = 3.

This study identifies ten potential critical success factors (CSFs) in Enterprise Resource Planning (ERP) Systems implementation from ERP and IS literature and examines the application of these factors in eight projects. ERP systems promise to provide an off-the-shelf solution to an organization’s information needs. Implementation of ERP projects has proven difficult, complex, costly and time c...

Passive all-fiber edge filter based devices are very often used for wavelength demodulation system for many sensors such as fiber Bragg gratings. The advantage of passive linear edge filter systems are their low cost, ease of fabrication and high measurement speed compared to active wavelength measurement systems. The accuracy and resolution of a fiber edge filter based wavelength measurement s...

Personalized inclusive eLearning requires a dynamic support in terms of recommendation strategies that combines design time and runtime approaches. This support is to be provided by standard-based open learning management systems. In this paper, we identify different situations during the delivery of a course based on the Collaborative Logical Framework approach and propose when to recommend an...

Arp2/3 complex plays a key role in regulated actin polymerization. A recent study has revealed marked differences in the ability of two nucleation-promoting factors - N-WASP and Scar/WAVE1 - to activate the Arp2/3 complex. Further insights have come from determination of the Arp2/3 crystal structure.