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Hundreds protest in Mali against draft peace deal
Residents in the northern Malian town of Kidal, a stronghold of Tuareg separatists, stage a protest against planned peace deal. 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 business, financial, national, and internation
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Professional ColdFusion Programmers

Video link (see supported sites below). Please use the original link, not the shortcut, e.g. www.youtube.com/watch?v=abcde

Author(s): HarrisonSavage

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Rights not set

Virtual Maths, Shapes, Space and Measure, Rearranging Formulae
Interactive simulation, rearranging formulae (letters and numbers)
Author(s): Leeds Metropolitan University

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Living the Best Life Possible: Doctor and Patient Conversations About Serious Illness and Mortality
Many Americans may confront illnesses so serious that they are life threatening. These diagnoses may come with treatment attempts and hospital stays. What they may not include are honest and open conversations about the final stages of life. How might the patient want to live during these stages? What choices are most likely to bring a sense of peace and empowerment? How might family members be included in these discussions? A growing palliative care movement is encompassing these questions, bri
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2 Energy, work, power and efficiency

In everyday speech we often refer colloquially to the powerful politician, the energetic child, the working mother and the efficient administrator. We use these terms imprecisely, and often wrongly, compared with their scientific definitions.


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7 Unit summary

Section 2

The law of conservation of charge applies locally at each point and time, so any variation of the total charge within a closed surface must be due to charges that flow across the surface of the region. This principle leads to the equation of continuity:

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5.1.3 Getting agreement with Faraday's law

Substituting Equation 7.21 into Faraday's law gives

This shows that a propagating electric wave is automatically accompanied by a transverse magnetic wave. The magnetic field oscillates in the y-direction, which is perpendicular to the direction of propagation
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5.1.1 Starting points

We begin by making some simplifying assumptions about the electric field. This is legitimate because we are not looking for the most general solution to Maxwell's equations, but only for special solutions that exhibit wave-like behaviour. We will ultimately check that our solutions for the fields satisfy all of Maxwell's equations, and hence obtain retrospective support for our initial assumptions.

If you drop a pebble in a pond, waves spread out in all directions on the surface. Many e
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3.3.2 A capacitor with time-varying charges on its plates

Figure 4 shows a parallel plate capacitor with circular plates, which is being charged by steady currents flowing along straight wires. We know that there is a circular pattern of magnetic field lines around the wires, but what happens inside the capacitor, between the plates?

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3.4 Bar graphs

The following graph (Figure 9) records how the outside diameter of a hypodermic needle is related to the needle gauge number.

4.5 Summary

Molecular approaches to the study of hibernation have combined largely non-hypothetical analytical and targeted methods. The analytical approach shows changes in the expression patterns of novel genes, often with unforeseen or unknown functions in hibernation, whilst indicating that the scale of the full range of adaptive genetic changes is small. The targeted approach has confirmed an important role for gene products normally involved in maintaining biological rhythms and energ
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Next steps

After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:

2 One gene–one protein

A gene is a short section of a long DNA double helix molecule, which comprises a linear sequence of base pairs.

SAQ 1

What is the basic (primary) structure of a protein?


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4.5 Some general results

We next establish some general results about Euler characteristics. We start with a theorem that tells us what happens to the Euler characteristic of a surface when we remove an open disc.

Theorem 10: Disc Removal Theorem

The Euler characteristic of a surface with an open disc removed is one le
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2.2.1 Surfaces without boundary

Examples of surfaces without boundary are a sphere and a torus. Other examples are the following:

n-fold toruses

Figure 13 depicts a 2-fold torus and a 3-fold torus, with two and three rings respectively. An n-fold torus, for any positive integer n has n rings. (A
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Changing cities
Urban processes are increasingly held to be responsible for causing a variety of problems – environmental destruction, social injustice, global financial instability. They are also identified as harbouring the potential to meet these challenges – through urban experiments in sustainably living, creative culture and alternative economies. This unit explores how contemporary processes of urbanisation challenge how we think about political agency, providing a framework for the analysis of the c
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2.4.1 Multimode distortion

With multimode fibre, the main cause of pulses spreading is the multiple paths that signals can traverse as they travel along the fibre. This phenomenon of multimode distortion is illustrated in Figure 5.


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12.1 Gathering data

In this section I will review some of the approaches and methods used by companies for identifying and exploiting marketing opportunities.

All over the world, producer companies have increasingly learned to keep a careful watch on emerging consumer requirements and changing user needs and wishes. They have not only learned to listen to what consumers say, but to watch what they do. Techniques used in market research to gather consumers’ views on products include both quantitative meth
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8.1.1 Visibility

Recall that a key usability design feature identified by Donald Norman – from his analysis of using everyday objects such as doors – was visibility. An everyday object such as a door, or a control such as a button on a product should appear to be obvious about how it is used, and indeed it should perform that obvious function. For example, is it obvious how you insert a disc into a player? Is it obvious how you switch the machine on, adjust volume, and so on?


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8.1 Making usable products

This section reveals that many modern products need to usable by our minds as much as our bodies. Products need to be understandable, and present information and feedback in meaningful ways.

A lot of ergonomics research is aimed at establishing guidelines, standards or rules that can be applied by designers in a variety of situations. Where this applies to the physical use of products, much of it is based on standard body measurements. These body measurements are known as anthropomet
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