2.2 What is a team?

Activity 1

Write your own definition of a 'team' (in 20 words or less).

You probably described a team as a group of some kind. However, a team is more than just a group. As noted above, wh
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1 course outline

The focus of this course is on relating to groups of other people rather than one-to-one relationships. Reading 1 develops some general concepts about 'groups' and 'teams', not just those at work. The later readings look at groups from particular perspectives or contexts, with the aim of discovering ideas about how to make them function more effectively.

This is, in fact, the main aim of this course: to help you understand how you might function more effectively in a group by improving
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Appendix 1 Terminology

After studying this unit you should be able to explain the meaning of the following terms:

all-optical network

angle-polished convex connector

bandwidth-distance product

chirp

combiner

connector

continuous wave operation

dense wavelength division multiplexing

direct modulation directional coupler dispersion

dispersion compensation dispersion-shifted fibre electro-optic material excess loss external modulation extinction ratio four-wa
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Conclusion

The building blocks of a basic optical-fibre communications link are the modulated light source, the fibre and the detector. There are choices to be made between different types of light source and fibre, with trade-offs between cost and performance. For example, for high signalling rates over long distances single-mode fibre will be used with a single-mode laser (possibly with external modulation) operating in the 1550 nm window, whereas for short-distance links operating at lower signalling
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4.5 Fibre in LANs

Fibre has been slower to be exploited in LANs than in the core transmission network, for similar reasons to the delay in the use of fibre in the access network, but as the data rate demanded of LANs has increased, the case for using fibre has strengthened.

Although Ethernet specifications (IEEE 802.3 series) have contained standards for the use of fibre backbones for some time, it was with the development of Gigabit Ethernet and 10 Gigabit Ethernet (10 GbE) standards that fibre became t
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4.4.1 FTTCab, FTTC, FTTB and hybrid coaxial fibre

The equipment needed at optical-fibre transmitters and receivers (lasers, photodiodes and the associated electronics) is more expensive than the equivalent for transmission over copper cables. With FTTH this equipment is needed in every home, and a substantial cost reduction is possible with schemes where the fibre doesn't go all the way to the home, but stops short, and copper links run from a shared fibre to several homes (Author(s): The Open University

4.4 Fibre in the access network

In the 1980s there was a belief that it was only a matter of time before fibre would be installed in the access network (from individual private customers to the local telephone exchange, also called ‘the last mile’, the ‘local loop’ and, now, the ‘first mile’). Installing ‘fibre to the home’, FTTH, as this has come to be known, was always recognised to be a major undertaking, simply because of the number of links involved. If, however, the revenue from new services enabled by
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4.3 Optical networking

DWDM improves the utilisation of optical fibre for point-to-point links, but a further step in exploiting the potential of optical fibre comes from optical networking in which routeing or switching is done optically.

Optical networking is in its infancy, but the concept of the optical layer based upon wavelength channels is emerging. The optical layer effectively sits below the SDH layer in the network, and provides wavelength channels from one location to another.

An analogy can
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4.1 Introduction

Additional material for this unit, by David Chapman, January 2005

The start of optical-fibre communication is generally identified with a paper published in 1966 (Kao and Hockham, 1966). It was not until about ten years later that it was commercially viable, but from then on there was more or less continuous development, with substantial research effort taking place both in industry and universities.

Innovation continues today, and this additional material introduces some o
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Acknowledgements

Except for third party materials and otherwise stated (see terms and conditions), this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence

Grateful acknowledgement is made to the following sources for permission to reproduce materia
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Introduction

In this course you will be introduced to a variety of Delacroix’s work and see how his paintings relate to the cultural transition from Enlightenment to Romanticism.

You will study Delacroix’s early career, his classical background, the development of Romantic ideas and their incorporation into his work. You will have the opportunity to study some of his most important paintings and compare them to works favouring a Neoclassical approach. You will also be able to see how his themes,
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4.4 Manchester Literary & Philosophical Society and Board of Health

In the meantime Owen joined the town's social and intellectual elite, which like its politics was largely dominated by Dissenters. They were prominent in the Manchester Literary & Philosophical Society which Owen joined in 1793. There he associated with some significant reformers, heard papers on a wide range of intellectual, industrial and social topics, and himself presented papers dealing with such issues, including one on education.

The society was founded in 1781, the co-founders b
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References

Boime, A. (1990) Art in an Age of Bonapartism, Chicago, University of Chicago Press.
Brookner, A. (1980) Jacques-Louis David, London, Chatto and Windus.
Delacroix, E. (1938) The Journal of Eugene Delacroix, trans. Walter Pach, London, Jonathan Cape.
Delécluze, É.-J. (1983) Louis David: Son ecole et son temps
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3.3 The use of religious imagery

What is paradoxical about this painting is that, while Bonaparte is ostensibly presented here as the exponent of rational values, the impression that it conveys is not so much of a modern secular leader as of a saviour in the Christian tradition. His hand extended towards one of the plague-stricken suggests that he has miraculous powers of healing. As one of Gros's fellow artists put it, in an ode to the painting: ‘the hero can cure at a glance’ (quoted in Porterfield, 1998, p.56). It thu
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4.2 Pose

Pose followed expression on the list of the portrait photographer's priorities. A sitter's pose was intended to assist idealization by highlighting physical beauty. Photographers were required to select a pose that displayed the sitter to advantage.

If your sitter be tall and thin, or short and stout, select a pose which may render such peculiarities least prominent …A sitter's personal defects may be frequently
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3.3 Limited positive characterization

The painted portrait was, however, perceived to be more than a mere ‘map of the face’. It was also meant to reveal aspects of the inner as well as the outer being.

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2.7.4 Houses

In the case of the houses it is more difficult to differentiate clearly between ‘Roman’ and ‘African’ if we accept that the atrium-peristyle house is not the only form of dwelling we can identify as typically Roman. Nevertheless, it seems that the houses in Africa do represent a fusion of elements – African, Roman and Hellenistic – suggesting that model 4 might be most appropriate in the case of the houses at Bulla Regia. They combine a Roman symmetry with a Hellenistic peristyle
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