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Depending on specific configuration and design, a variety of physical phenomena is present in solid oxide fuel cells (SOFCs). These processes include multi-component gas flow, energy and mass transfer of chemical species in composite domains and sites. Due to the electrochemical reactions, generation and consumption of chemical species together with electric current production are involved at the

This paper explores discourses in higher education viewing two pairs of concepts, on the one hand, the concepts of use- vs. exchange value and on the other, the concepts of deep vs. surface learning. Drawing on Yrjö Engeströms’ position of use- vs. exchange value, and his elaboration on the activity system, we assert that any component in an activity system combines two inherent forces which compe

The study investigates the changing growth pattern of 69 European regions measured at NUTS-level 2 between 1980 and 2002 by addressing the hypothesis of capital accumulation versus technological change as sources of convergence or divergence. The paper adds to the existing regional growth and convergence literature in three respects. First, regional estimates of capital stocks are constructed from

The Lewis (Le) blood group antigens are a set of fucosylated glycan structures. They are present as N- and O-linked structures on glycoproteins and as glycolipid-based structures on cell surfaces. Depending on the exact structure, the Lewis group is divided into four subgroups; Lea, Leb, Lex and Ley. Lex and Lea can further be sialylated and/or sulfonated. Among these, Lex has been found to be imp

The breakdown of traditional marine tenure systems and overexploitation of marine organisms as a result of rapid modernization, urbanization and population growth in the case of Tonga is outlined. The customary marine tenure system is described and the threats against the coral reefs are discussed. It is shown how accumulative strategies correlate with the move toward overexploitation. It is argue

This working paper will discuss how societal systems (technological, political, economic etc.) constitute boundaries and limitations for implementation- and legislation processes. Thus, the paper highlights the importance of understanding how political, economical, technological and systems affect and influence actions and strategies underlying an implementation- and regulation process (i.e. law/r

Neoplastic disorders are characterized by recurrent somatically acquired chromosomal aberrations that alter the structure and/or expression of a large number of genes. Most “cancer genes” discovered to date in human neoplasms have been identified through isolation of genes at the breakpoints of balanced chromosomal translocations. Although functional studies of such cancer-causing genes have demon

By pulse-modulating a cw dye-laser beam and employing the delayed-coincidence technique, we have determined the natural radiative lifetimes of a number of atomic states in rare-earth atoms Eu, Dy, and Yb. In the measurements, which were performed on an atomic beam, exponential decay curves with good statistics were obtained using short measuring times. The general features of the technique are dis