OU Human Physiology: Erythrocytes
Heather Ketchum, Eric Bright
By the end of this section, you will be able to: Describe the anatomy and function of erythrocytes Explain the steps in erythropoiesis Explain why RBCs [â€¦]
Author(s):
No creator set

1. By â€˜containsâ€™, we mean that we can find part of the surface that is homeomorphic to a MÃ¶bius band. The edge of the MÃ¶bius band does not need to correspond to an edge at the surface, so that a surface without boundary can be non-orientable (as we shall shortly see).

2. When seeking MÃ¶bius bands in a surface, it can be helpful to look at all possible closed curves on the surface and thicken these into bands.

3. Remember, fro
Author(s): The Open University

Traditionally, an enterprise's activities are organised according to a structure based on the well-known business functions: marketing, purchasing, finance, human resources, research and development (R&D), operations, and so on. The exact function title varies from organisation to organisation, but each function has its own more or less well-defined sphere of activity. It carries out its various tasks and passes on information or artefacts to other functions for them to work on. For example,
Author(s): The Open University

Comparing Absolute Values
Sal Khan evaluates and compares absolute values in this four-minute video clip.
Author(s): No creator set

Virtual Maths - Numbers, 2D Elipse simulation tool
Interactive simulation tool demonstrating formula for calculating the area of an elipse
Author(s): Leeds Metropolitan University

The equation 23Â =Â 8 means that 3 is the index of the power to which we raise the number 2 to produce 8.

A logarithm is an index, and in this example, 3 is the logarithm of 8 to the base 2. We write this as

Log2 8Â =Â 3

These two equations are identical: 23Â =Â 8 and log2 8Â =Â 3

They express the same fact in the language of logarithms.

Author(s): The Open University

Deepening capacity through innovative research design
This paper describes the design of a major development and research project within the UK's Teaching and Learning Research Programme.,48,56,114,120,126,24,30
Author(s): Creator not set

Lesson 05 - one Minute Luxembourgish
In lesson 05 of One Minute Luxembourgish you will learn to say that you're learning Luxembourgish. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Languages at our website - http://www.oneminutelanguages.com. One Minute Luxembourgish is brought to you by the Radio Lingua Network and is Â©Copyright 2008.Author(s): No creator set

Surfaces can be constructed in a similar way from plane figures other than polygons. For example, starting with a disc, we can fold the left-hand half over onto the right-hand half, and identify the edges labelled a, as shown in Figure 36; this is rather like zipping up a purse, or â€˜crimpingâ€™ a Cornish pasti
Author(s): The Open University

Computer technology: robotic milking and interactive mirrors
What have computers got to do with cows? Can a wooden mirror help us understand the computing behind digital image capture? Neil Rowse is the first dairy farmer in the UK to use a computerised system that gives cows control over when they are milked, and allows him to remotely monitor the welfare of individual animals. Daniel Rozin has created an computer operated mirror made from 835 tilting wooden tiles. With the help of a digital camera and a computer programme, the wooden tiles mimic the di
Author(s): The iTunes U team

The blackbody spectrum is emitted when thermally emitting matter is optically thick. Optically thin matter can also emit thermal radiation. Whenever a charged particle is accelerated it emits electromagnetic radiation. When the acceleration is due to the electric field of another charged particle the emitted radiation is called free-free emission or bremsstrahlung. (Bremsstrahlung is a German word meaning â€˜braking radiationâ€™.) The radiation emitted by an optically thin, ther
Author(s): The Open University

England played a dominant role in the medieval history of Britain, and the history of the UK is undoubtedly the history of the political and cultural domination of the English nation over those of Scotland, Wales and Ireland. In the making of the UK, each component nation played a different role: the English and Scottish kingdoms, the incorporation of Wales into the English Crown, and the subjugation of Ireland. The making of the UK was complex and fraught with violent confrontations, particu
Author(s): The Open University

Observations are the most direct method of getting information about people's behaviour. In everyday life we all frequently observe other people. Psychologists have devised a range of methods for systematically observing other people. These range from participant observation through to highly structured and targeted observations. In participant observation, the researcher is part of what is being observed and writes up notes whenever possible. Sometimes these notes include an insider v
Author(s): The Open University

In the light of recent reinterpretation of the site, which includes more and different voices to the portrayal of the battlefield, Glasgow Caledonian University (GCU) undertook a preliminary visitor survey in April 2006 in order to begin to understand how the site figured in the construction of identity for Scots and other visitors (McLean et al., 2007).

When questioned about their motives for visiting the site, many cited educational reasons; however, a large number also came as
Author(s): The Open University

American Experience: The Assassination of Abraham Lincoln
This video provides an extensive view and insight into the events that occurred on April 14, 1865. Just days after the Civil War ended, President Abraham Lincoln was assassinated at Ford's Theatre. As a fractured nation mourned, a manhunt closed in on his assassin, the twenty-six-year-old actor, John Wilkes Booth. This professionally-made video from PBS is part of a series titled American Experience. (1:24:13)
Author(s): No creator set

Learn French - La Nourriture (Food), Part 1
The instructor recitesÂ foodsÂ in French. This brief video hasÂ words spoken by a native speaker accompanied by appropriate images. It is well-produced with clear sound. Each image is also accompanied by the French caption. (This video contains mostly baked sweet goods.)
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Relationship-builder finds perfect program in health care
Cherah loves working with people and solving problems. The speech-language pathology program offers her the opportunity to follow her passion within a growing field.
Author(s): No creator set

6.061 Introduction to Electric Power Systems (MIT)
This course is an introductory subject in the field of electric power systems and electrical to mechanical energy conversion. Electric power has become increasingly important as a way of transmitting and transforming energy in industrial, military and transportation uses. Electric power systems are also at the heart of alternative energy systems, including wind and solar electric, geothermal and small scale hydroelectric generation.

Author(s):
Kirtley, James

English Grammar - Either & Neither
"I don't want to go!" "I can't do this!" How do you agree with these statements? Learn about the different ways that you can agree with these negative sentences using neither or either.  A teacher explains the rules and writes examples on a white board, with emphasis placed on auxiliary verbs for correct usage. ( 9:51)
Author(s): No creator set