We observed simultaneous focusing in both space and time for light pulses propagating in a planar waveguide. In particular, 60 fs pulses with a width of 170 microm were injected into a planar glass waveguide in the anomalous dispersion regime. Output pulses as short as 30 fs and as narrow as 20 microm were measured. The results suggest that multiphoton absorption and intrapulse stimulated Raman scattering arrest the spatiotemporal contraction. The results were compared to the pulse evolution in zero and normal dispersion regimes and were shown to be significantly different. All of the experimental results were reproduced by a numerical model.

We investigate the propagation of short, intense laser pulses in arrays of coupled silica waveguides, in the anomalous dispersion regime. The nonlinearity induces trapping of the pulse in a single waveguide, over a wide range of input parameters. A sharp transition is observed for single waveguide excitation, from strong diffraction at low powers to strong localization at high powers.

This paper explores the major developments in the multinational enterprise (MNE) literature; along with the research conducted on Scottish-based MNE subsidiaries and the policy changes that have taken place in Scotland aimed at promoting foreign direct investment (FDI). It is suggested that subsidiaries may evolve from the branch plant to the developmental and the entrepreneurial subsidiary type; with each of these three subsidiary types contributing differently to the economic development of the host country. The empirical evidence from an in-depth analysis of IBM, Greenock, Scotland attests to the importance of the entrepreneurial subsidiary activities for the host economy. Implications for research and public policy are discussed.multinational enterprise subsidiary, foreign direct investment, subsidiary evolution, branch plant, developmental subsidiary, entrepreneurial subsidiary, economic development, Scotland,

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When William Callender of Royal Bank of Scotland's Glasgow office died in May 1868, there was found, folded in the pocket of his greatcoat, a handwritten list of those 'penny banks' that he had played a significant role helping to create.2 It begins with Barony Penny Bank, opened on 15 May 1852, and concludes with Working Men's Provident Bank in Partick, that commenced on 18 March 1865. Over the intervening period, Callender had been involved in the promotion of 23 others, including some located far from Glasgow, such as at Broughty Ferry, Dundee; Padiham, Yorkshire; and Greenwich, Kent. That Callender contributed so much to the 'penny bank' movement and appeared to value these institutions so highly that he carried this note about with him at all times supports the Glasgow Herald's 1860 description of his relationship to 'penny banks' as one of 'the first who made the principle a living fact'.3 It also reveals something of the commitment of bank officers working in other institutions to the 'penny bank' cause. This was very much part of the middle-class and philanthropic attitude that sustained 'penny banks' and saw them develop as one of the most remarkable social phenomena of the nineteenth century. This article will discuss the philanthropic approach of these institutions and relate them to ongoing work on the role of saving in the working-class economy. It will then describe their success in Glasgow during the second half of the nineteenth century, and conclude by examining case studies of two very different banks in some depth. The paper will conclude by suggesting some avenues for future research. I Scholarly work on the working-class economy in Britain during industrialisation has focused on a variety of areas: the standard of living debate, the nature of