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16.1 Introduction

Supermarkets make use of ICT systems for a range of purposes. In the following sections, we'll look at the processes of receiving, storing, retrieving, manipulating and sending data at the checkout, and then we'll move on to the larger context of the supermarket.


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Derived copy of DNA Replication
Michelle Miller
By the end of this section, you will be able to: Explain the process of DNA replication Explain the importance of telomerase to DNA replication Describe […]

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7.4 Models of active galaxies

  • The standard model of an AGN consists of an accreting supermassive black hole (the engine) surrounded by a broad-line region contained within a torus of infrared emitting dust and a narrow-line region.

  • Unified models attempt to explain the range of AGNs on the assumption that they differ only in luminosity and the angle at which they are viewed.

  • One type of model attempts to unify radio-quiet AGNs. Type 1 Seyferts and type
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From managing and structuring information to fostering internal learning and smooth communication, the military holds lessons for businesses operating in uncertain environments.
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Rights not set

7.7 Physical hazards

In any laboratory, potential hazards arise from the use of electrical equipment. The legal requirements relating to the use and maintenance of such equipment are contained in the ‘Electricity at Work Regulations 1989’ (EAW). The regulations require certain safety objectives to be achieved but do not prescribe in detail the measures to be taken. Instead, precautions should be selected appropriate to risk depending on particular work activities.

‘Portable’ electrical equipment –
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Interactive simulation demonstrating formula and calculation of area of an elipse
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4.3.1 Start writing

Using the format of introduction, main body and conclusion outlined in Section 3, write up your answer to the question.


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References

Sheldon, P. (2005) Earth's Physical Resources: An Introduction (Book 1 of S278 Earth's Physical Resources: Origin, Use and Environmental Impact), The Open University, Milton Keynes
Smith, S. (2005) Water: The Vital Resource (Book 3 of S278 Earth's Physical Resources: Origin, Use and Environmental Impact), The Open University, Milton Keynes

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If the twentieth century was the century of physics, the twenty-first promises to be the century of biology. This subject examines the cultural, political, and economic dimensions of biology in the age of genomics, biotechnological enterprise, biodiversity conservation, pharmaceutical bioprospecting, and synthetic biology. Although we examine such social concerns as bioterrorism, genetic modification, and cloning, this is not a class in bioethics, but rather an anthropological inquiry into how t
Author(s): Helmreich, Stefan

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

Can innovation save the world? If so, what will it take to be more innovative?
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Acknowledgements

The content acknowledged below is Proprietary (see terms and conditions). this content is made available under a Creative Commons Attribution-NonCommercial-ShareAlike 2.0 Licence.

Grateful thanks is made to the pupils and staff of: The Henley College, Oxon; Langtree School, Wo
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10.1 Absolute thresholds

The human ear has incredible absolute sensitivity and dynamic range. The most intense sound we can hear without immediate damage to the ear is at least 140 dB above the faintest sound we can just detect. This corresponds to an intensity ratio of 100 000 000 000 000:1. In this section, we examine how the loudness of a sound can be measured and how the perception of loudness is affected by the intensity and duration of the signal.

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