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6.1 Direct proportion

The first type of proportion relationship is known as direct proportion. Two quantities are said to be directly proportional to each other if when one doubles, triples, quadruples, the other also doubles, triples, quadruples. For example, if you buy three times as many items as usual, you would expect to have to pay three times as much money (unless there was some special offer available), because the price is directly proportional to the number of items bought.

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4.2 A resting heart rate

We can understand the role of the athlete's heart in sport a little more clearly by looking at typical heart rates for trained athletes compared with heart rates for non-athletes. A commonly used measure of heart efficiency is called the resting heart rate. This is the number of times per minute that the heart beats when a person is relaxed and resting. The heart rate for a reasonably healthy adult when they are relaxed and resting is in the range of 55–65 beats per minute. This means that
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1 International human rights: an introduction

There are many examples of claims for rights in the international sphere.

One example was reported in September 2002. The British government was asked to make efforts to have a British man held by the Americans at Guantanamo Bay deported to Britain to face charges of terrorism there in connection with the attacks on 11 September 2001. Concerns were expressed about the denial of this man's human rights at Guantanamo Bay. Are alleged terrorists entitled to human rights? Can the denial of
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Learning outcomes

After studying this unit you should be able to:

  • have a basic understanding of the European Convention on Human Rights (ECHR);

  • have an understanding of the European Union (EU);

  • acquire a basic knowledge about the EU institutions;

  • acquire an understanding of the sources of EU law;

  • acquire a knowledge of the interaction between EU law and domestic law.


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1.7 Homologies

If homologies could be recognised as such, then the relationships between species could be inferred from their shared homologies. Unfortunately, however, homologies and analogies cannot always be unambiguously distinguished in practice. The risk of confusion is especially great when closely related species are compared, because similarities in their morphology and ecology make the parallel evolution of analogous features in separate lineages quite likely. As with other statements concerning h
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3.6 Length of torpor bouts in hibernation

It is obvious that there is a very high energetic cost to arousal, and an even higher one to the periods of euthermic wakefulness prior to re-entering torpor. If an animal could simply enter torpor once, and arouse 2, 4 or 6 months later, depending on the environment, it would represent a huge energy saving. Thus, it has been assumed that either prolonged torpor is physiologically impossible, or there is some strong selective value to the species in regular arousal. In the case of some small
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4.1 The Milky Way

Figure 1 showed two spiral galaxies: NGC 5548, which has an active nucleus, and NGC 3277 which does not. If we accept that AGN are the result of accretion on to supermassive black holes at the centres of the galaxies which harbour them, it is natural to ask the question whether galaxies like NGC 3277, which do not
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References

Unit references and further reading
Bennett, P. and Calman, K. (eds) (1999) Risk Communication and Public Health, Oxford, Oxford University Press.
Courthauld, C. (2003) ‘The Critics’, The Observer on Sunday, 21 December.
Deer, B. (2004) ‘The truth behind the crisis’, Sunday Times, London, February
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2.4 Staying warm …

In this section, you will meet the term ‘thermal conductivity’ and you will be asked to accept that it is ‘a measure of how readily heat flows from a particular material’. You may be uncomfortable about the lack of detailed explanation of how it is measured and of actual values and units. However, at al
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Prince Charles commemorates British fallen soldiers
Britain's Prince Charles joins thousands of people across the country to commemorate members of the armed forces who were killed during both World Wars and other conflicts. Rough Cut (No reporter narration) Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including bu
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President Obama and America in the World: from inauguration to action
UCL Lunch Hour Lectures are open and free to the public and take place on Tuesdays and Thursdays in the Darwin Lecture Theatre, UCL, Gower Street, London WC1E 6BT. They will resume in Autumn 2008. In the meantime, a number are available below.
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2.2 The nature of systems thinking and systems practice

There are no simple definitions for either systems thinking or systems practice. It's difficult to find definitions that capture all the perspectives that the ideas carry for people who think of themselves as systems thinkers and systems practitioners. Most systems practitioners seem to experience the same kind of difficulty in explaining what they do or what it means to be systemic in their thinking. Through experience I've developed some criteria by which I characterise systems thinking, bu
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Certificacion de Turismo Responsable
A lecture on sustainable tourism delivered in Spanish.
Author(s): Xavier Font,Leeds Metropolitan University

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http://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Which Digital Strategy for France and Europe in an Age of Disruption? [Audio]
Speaker(s): Axelle Lemaire | Axelle Lemaire (@axellelemaire) has been at the French Ministry of State for Digital Affairs since April 2014, serving as Deputy Minister for the Digital Sector. She calls her position the “portfolio for imagination”. Born in Canada in 1974, she studied political science at Sciences Po in Paris and law at the Sorbonne and King’s College London. She worked as a researcher and international lawyer before entering politics as a parliamentary assistant in the House
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Hospitals overwhelmed after Yemen mosque attacks
Hospitals in the Yemeni capital deal with large numbers of wounded after coordinated suicide bombings at two mosques Friday. Julie Noce reports. Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international news. For over
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Introduction

This unit introduces the important distinction between our analogue world of colour, sound, taste and touch and the computer's peculiar binary world of digital entities. Concepts of the analogue universe in which we live and the digital world we create are explained. The way in which information, in the form of text, still and moving images, and sound can cross the boundary from the analogue universe into a digital world is explored.

This unit is from our archive and is an adapted extr
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4.12 Candidates make decisions too

In the past people have tended to see selection primarily as organisations choosing between individuals. However, we must not forget that candidates are also making choices: about whether to write in for an application form, whether to apply, whether to attend an interview, whether to accept an offered job. This makes it important for organisations to treat candidates in a sensitive and responsive manner. They will need to pay attention to their recruitment materials, to provide realistic job
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References

Green, S. (1971) The Curious History of Contraception, Ebury press, London.

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Tutoria. XIème Festival International de Théâtre Jeune en français

4 min. Vídeo. Generalitat de Catalunya (Departament d'Ensenyament).
Aquest vídeo presenta l'11è Festival francòfon de Mollet del Vallès, un festival jove de teatre organitzat per l'institut Vicenç Plantada dins del marc del projecte Comenius Regio. text complet
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1.1.1 Introduction

The data sets you will meet in this section are very different from each other, both in structure and character. By the time you reach the end of the unit, you will have carried out a preliminary investigation of each, identified important questions about them and made a good deal of progress with some of the answers. As you work through the course developing statistical expertise, several of these data sets will be revisited and different questions addressed.

There are seven data sets
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