This paper develops a multi-objective optimization model for project portfolio selection
taking employee competencies and their evolution into account. The objectives can include …

This paper presents a new model for project portfolio selection, paying specific attention to
competence development. The model seeks to maximize a weighted average of economic …

The transition to an information society and the therewith strongly related need of lifelong
and life-wide learning on the one hand, and the increasing coverage of and developments in …

Cross-media advertising has received wide attention from practitioners over the last years, but
there are only few experimental studies that analyze the effectiveness of integrating online …

Carbocyanines (DiI, DiA, DiO) are able to travel along membranes by diffusion and therefore
have been used as postmortem neuronal tracers in aldehyde-fixed tissues. Surprisingly, …

purpose. To analyze palisade endings and their end organs, the so-called innervated
myotendinous cylinders (IMCs), of human extraocular muscle (EOM) in more detail and to clarify …

Background This study was performed to reinvestigate the detailed anatomy of the connective
tissues related to the levator palpebrae superioris (LPS). Materials and Methods One …

The World Wide Web has become an important source of information for tourists planning
their vacation. So, destination recommendation systems supporting users in their decision …

Understanding the business and commercial intricacies of mobile commerce is not easy.
Different actors are involved and they all aim at providing users with new data and services …

In order to take panel surveys into the 'mobile age', a careful analysis of their characteristics
is conducted. Core issues of mobile surveys and panel designs are addressed and …