The current generation of young children has been described as ‘digital natives’, having been born into a ubiquitous digital media environment. They are envisaged as educationally independent of the guided interaction provided by ‘digital immigrants’: parents and teachers. This article uses data from the Longitudinal Study of Australian Children (LSAC) to study the development of vocabulary and...

A sys tem for the resolutio~ of synLa.(> Lie a.mbiguities is illusl;ra.teel whi(:h op era.tes on ,norifl/o-synl;act;ica.lly a.u:d)iguous st, I~,iect-objecl; a.ssig,, nmnts i , 1Lal Jan a.ud tries t.o find the . ,os t likely aua.lysis (Ill [;[/e I)asis ()[' I;h(: cvid('m:c co,,ta,ined it, a knowledge Ira.so of linguistic data. a, ut, otna, tica.lly ('xtra,et(~d from on-liue re'.sources. The syst...

The lipid raft model has evoked a new perspective on membrane biology. Understanding the structure and dynamics of lipid domains could be a key to many crucial membrane-associated processes in cells. However, one shortcoming in the field is the lack of routinely applicable techniques to measure raft association without perturbation by detergents. We show that both in cell and in domain-exhibiti...

Native cellular fluorescence (NCF) represents the innate capacity of tissues to absorb and emit light of specified wavelengths. Recent advances in optical engineering and computer technology have provided the, opportunity to measure NCF characteristics of various tissues in vivo. This report will briefly review the current status of NCF analysis of various neoplastic tissues. The status of inve...

The main purposes of this study were to select a photochromic dye and to develop an active welding filter with a photochromic layer. A series of functionalized spirobenzopyranoindolins were synthesized and their photophysical and photochemical properties were investigated in a solution using absorption and emission spectroscopy. Time-resolved fluorescence spectroscopy measurements were used to ...

Entrepreneurial action is increasingly associated with innovation ecosystems because no firm alone can render the complex and interdependent services demanded in markets. Moreover, entrepreneurial firms are increasingly instigators of innovation ecosystems, rather than merely participants. However, particularly in the pursuit of radical innovation, a question arises as to how an entrepreneurial...

The sedimentation properties of the skin-sensitizing antibodies of human atopic allergy have been studied by a number of investigators (1-6). Most work involving sucrose density centrifugation (2, 6) and ordinary preparative sedimentation (3, 4) has indicated that the skin-sensitizing antibodies are to be found in the 7S group of proteins rather than associated with the 19S macroglobulins. In m...