834 search results
Introduction to differential equations
Science, Maths & Technology

Introduction to differential equations

...techniques and definitions taught in earlier units in MST125 are present in the extract without explanation, therefore a fluency with algebra and basic calculus is essential for this extract. Mathematical/statistical content at the Open University is usually provided to students in printed books, with PDFs of the same online. This format ensures that mathematical notation...
View course Introduction to differential equations
Level 1: Introductory 18 hrs
Are you a secret hoarder?
Health, Sports & Psychology

Are you a secret hoarder?

...techniques by which you can let go of excess stuff and 'de-clutter'. Both the BBC and other channels have television series about ‘collectaholics’ and hoarders who meet counsellors persuading them to ‘de-clutter’. There are of course structural and economic contexts making it possible for members of our society to collect and hoard so many objects: First, people...
View article Are you a secret hoarder?
Article 5 mins
Listen Up! Developing an appreciation of music
History & The Arts

Listen Up! Developing an appreciation of music

...techniques of listening, but generally speaking, the act of listening needs to be carried out when there is nothing around to distract you. The ability to listen to music in this way will undoubtedly help you to focus and concentrate on many aspects of the music. I would certainly challenge anyone to appreciate fully a Beethoven string quartet with the distraction and...
View article Listen Up! Developing an appreciation of music
Article 10 mins
How does the human body fight a viral infection?
Science, Maths & Technology

How does the human body fight a viral infection?

...technique some very clever molecular biology is used so that the reaction can proceed at one temperature (isothermal amplification). Not only does this obviate the need for the lengthy temperature cycling steps, it can also be done with simpler instruments. The disadvantage is that the reagents required are more complex and the technique is currently less...
View article How does the human body fight a viral infection?
Article 20 mins
Digital communications
Digital & Computing

Digital communications

...technique known as direct modulation) is that the physics of laser diodes is such that the output wavelength varies with the electrical current. So as the electrical current is switched from high to low, and vice versa, the output wavelength also varies. This effect is called chirp, and results in an increase in the spectral width of the laser output. Chirp can be avoided...
View course Digital communications
Level 3: Advanced 20 hrs
Attention
Society, Politics & Law

Attention

...technique known as dichotic listening. This offers a way of presenting listeners with a simplified, more easily manipulated version of the real world of multiple sounds. Participants wear a pair of headphones, and receive a different sound in each ear; in many studies the sounds are recorded speech, each ear receiving a different message. Broadbent and others (e.g....
View course Attention
Level 3: Advanced 10 hrs
A tour of the cell
Science, Maths & Technology

A tour of the cell

...techniques used to study the interior organisation of cells are briefly outlined...A tour of the cell: 2 How is subcellular organisation studied? - Subcellular organisation has been studied in two main ways: by electron microscopy (EM) and by the separation (fractionation) and subsequent biochemical or molecular analysis of the different cell components...A tour of the...
View course A tour of the cell
Level 2: Intermediate 12 hrs
Primary science: supporting children’s learning
Education & Development

Primary science: supporting children’s learning

...techniques can be used to find out what ideas a child holds about a topic or scientific concept. For example, you could use a concept cartoon depicting a situation, with two or three statements about what is happening. Children then look at the cartoon, decide which statement(s) they agree or disagree with, and say why. Engage with the example below to see this technique...
View course Primary science: supporting children’s learning
Level 2: Intermediate 8 hrs