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4 Other influences on evolution

One of the crucial conditions for natural selection to occur is that there must be variation. However, it is extremely important to appreciate that natural selection does not itself cause that variation; it simply acts on existing variation. The processes that do bring about variation are therefore major components of evolution. The most important of these processes, because it is really the ultimate source of all variation, is mutation. A mutation is an alteration in the geneti
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7 Ergonomics and human factors

This section discusses designing for human capabilities and limitations. It introduces the study of ergonomics which can offer general guidelines as well as specific suggestions for good, user-centred product design.

Taking the user as the central point of reference for the design and evaluation of products is the approach encouraged by ergonomists.

The field of ergonomics (also known as human factors engineering) is the systematic study of human capabilities, limitations and requ
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Why Pluto is no longer a planet


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1 Topological spaces and homeomorphism

Two topological spaces (X, TX) and (Y, TY) are homeomorphic if there is a bijection f : XY that is continuous, and whose inverse f−1 is also continuous, with respect to the given topologies; such a function f is called a homeomorphism. The relation ‘is homeomorphic to’ between topological spaces is the most fundamental relation in topology, because two topological spaces that are homeomo
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Introduction

In this unit we examine one factor that very often seems to be found skulking around close to problems and solutions: temperature.

Almost whatever we do, wherever we are, temperature changes. Stay in the same spot and you'll find daytime and night-time temperatures can be markedly different. You may even find significant changes in temperature during the day. When moving you can encounter more rapid variations. For example, an aircraft might leave a tropical runway where the air tempera
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4.4 The Council of the European Union

The Council represents the interests of the individual member states and is seen as the legislative arm of the EU. It is composed of active representatives of the governments of the member states. Usually, these representatives are the departmental or junior ministers responsible for the matters under consideration at a specific Council meeting. This means that the Council itself, unlike the Commission, has no stable membership. Its membership varies depending upon the issues tabled for discu
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Acknowledgements

Don't miss out:

1. Join over 200,000 students, currently studying with The Open University [http://www.open.ac.uk/ choose/ ou/ open-content]

2. Enjoyed this? Find out more about this topic or browse all our free
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3 Biographical perspective: using pathways

You will shortly be hearing excerpts from interviews with four men, who were contacted through the Swansea Cyrenians. They are all from very different backgrounds, and talk about their own experiences of homelessness.

The clips are only brief insights into life without a home, but they do demonstrate the importance of a biographical perspective in understanding the unique and diverse needs of individual homeless people.

Looking at situations from a biological perspective is
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The Graeco-Roman city of Paestum
What can archaeological remains tell us about early cities and the people who lived in them? This album examines the important remains of one city, Poseidonia in Italy, founded towards the end of the 7th century BCE by colonists from the Greek city of Sybaris. Although only twenty-five per cent of the site has been excavated to date, much of its history and culture can be traced through its buildings, inscriptions, and decoration. After it became a colony of Rome in 273 BCE, it became known a
Author(s): The iTunes U team

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Stroke Rehabilitation
Will you help stroke survivors and their carers rebuild their lives? An estimated 15 million people worldwide suffer from strokes each year. Five million will die and another five million will suffer a permanent disability. Strokes cost the NHS £2.8 billion a year.
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1.3.3 Ineffability

Most people who speak of their near-death experience say they have great difficulty putting it into words because, as one person put it, ‘There is no feeling you experience in normal life that is anything like this’.


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Film Theory and Architectural Design
This paper describes a 10 week, 3rd year architectural design studio, taught by the author, that explored the use of film and video techniques in the design process. The exploration was of (1) the potential of recently available personal computer software and hardware for image and video capture, manipulation and recording, and (2) the potential for application of video, informed by film theory, in the early stages of architectural design.
Author(s): Anderson, Lee

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18.413 Error-Correcting Codes Laboratory (MIT)
This course introduces students to iterative decoding algorithms and the codes to which they are applied, including Turbo Codes, Low-Density Parity-Check Codes, and Serially-Concatenated Codes. The course will begin with an introduction to the fundamental problems of Coding Theory and their mathematical formulations. This will be followed by a study of Belief Propagation--the probabilistic heuristic which underlies iterative decoding algorithms. Belief Propagation will then be applied to the dec
Author(s): Spielman, Daniel

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5 - conclusion (audio)

Des formes pour vivre l’environnement

Théorie, expérience, esthétique et critique politique

Des formes pour vivre l'environnement. Théorie, expérience, esthétique et critique politique. La question environnementale est aujourd'hui centrale aussi bien dans les discours politiques, que les travaux scientifiques et le vécu ordinaire. Malgré
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Spanish Listening Comprehension for Advanced Learners #7 - Setting up a Meeting Room in Mexico
Learn Mexican Spanish with Spanishpod101.com! Do you find yourself missing the nuances in Mexican Spanish conversations? Would you like to understand more of what’s happening around you in daily life in Mexico? Then this Mexican Spanish Listening Comprehension for Advanced Learners series is for you! In each lesson of this five-part series, you’ll see an [...]
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Season's Greetings from Michigan State University
Enjoy this holiday greeting celebrating the work of more than half a million MSU Spartans who are a force for good—this season and all seasons. Like us on Facebook: http://facebook.com/spartans.msu Stay connected at MSUToday http://msutoday.msu.edu
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Former foes honor the fallen on Gallipoli centenary
Britain's Prince Charles joins Turkish President Tayyip Erdogan in leading a memorial service to commemorate the 100th anniversary of one of World War One's bloodiest battles. Vanessa Johnston 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 busines
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Introduction

This unit will examine some of the key ideas connected with innovation in organisations. You will be introduced to some important concepts which are used to analyse innovation, in particular the distinction between innovation and invention. In exploring the theme of innovation, general links will be made to the implications for the business functions.

This material is from our archive and is an adapted extract from Understanding Business Functions (B202) which is n
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1.4.10 Unfinished business

When people die suddenly we can never be sure that they have done and said what they want and are able to do. Meg’s long term-illness gave her a lot of time for reflection and preparation, so that while her death was sudden and she was unable to see her younger son, she also had the opportunity for conversations with people about her death. However, there may have been last-minute wishes that Meg was unable to express.

Li’s sudden stroke may have left her with things unsaid, but her
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Importing and Editing Images (4 of 10)
In this video you’ll learn how to import and edit images in Flash.
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