513 search results
Metals in medicine
Science, Maths & Technology

Metals in medicine

...aluminium and often zirconium) on the day of the appointment. Why might this be so? Magnesium, silicon, aluminium and zirconium are heavier elements than those contained in body tissue, and so show up as spots on the image where they absorb the X-rays. Now watch the following short video which shows a CT scan of the head using a tri-iodated contrast agent. In this...
View course Metals in medicine
Level 2: Intermediate 12 hrs
Dominic Weston - Earth in Vision
Nature & Environment

Dominic Weston - Earth in Vision

...don’t know what I can do. I will give money to charities, I will sign petitions, but it seems that everything goes on unchecked. And so I suppose I feel a sense of helplessness, of frustration, and what keeps me going is I’m an optimist, which is probably a bit like being an ostrich with my head in the sand, to be honest, but it’s the way I cope. ...
View video Dominic Weston - Earth in Vision
Video 30 mins
The Seasons in Art
History & The Arts

The Seasons in Art

...sand embedded into the paint surface, blown onto the canvas by the wind evident in the picture itself in the scudding clouds in the sky. What seems strange by today’s standards is that both pictures show figures sitting on the beach fully dressed – even when they did go in the water, middle-class people of this period wore voluminous bathing costumes. By contrast,...
View video The Seasons in Art
Video 15 mins
How do empires work?
History & The Arts

How do empires work?

...sand bars and shallows in places such as the Pearl River. The East India Company auctioned off Bengal opium, whose production it monopolised, to private ‘country traders’ such as those of Jardine and Matheson. So successful were these, with the connivance of local Chinese officials, that by the 1820s Chinese consumption was soaring, and the influx of silver into...
View course How do empires work?
Level 1: Introductory 1 hr
The law-making process in England and Wales
Society, Politics & Law

The law-making process in England and Wales

...cast their vote in person or at a polling station, often located in a town hall or school, although postal voting also takes place. The vote is referred to as a secret ballot, as it takes place in a private booth. Voters are asked to place a cross beside the name of the candidate they want to represent them in the House of Commons. They then place their paper in a ballot...
View course The law-making process in England and Wales
Level 1: Introductory 15 hrs
Icarus: entering the world of myth
History & The Arts

Icarus: entering the world of myth

...cast bronze figurine of Icarus flying, first to third century CE, height 11.5 cm, found in Crete. As both character and image, Icarus continues to turn up in unexpected places, from scientific papers to advertising. Icarus has become a symbol for heroic daring (the crew of space shuttles that did not survive) but his flying and falling have been given a psychological...
View course Icarus: entering the world of myth
Level 2: Intermediate 3 hrs
Exploring the relationship between anxiety and depression
Science, Maths & Technology

Exploring the relationship between anxiety and depression

...Cast your mind back to the first course in the series Exploring anxiety (Section 1.1), where we introduced the biopsychosocial model for mental health. Recall that a central assumption behind the biopsychosocial model is the interdependence between biological, psychological and social factors. We noted that 'this approach examines the three interdependent factors,...
View course Exploring the relationship between anxiety and depression
Level 3: Advanced 3 hrs
A question of ethics: right or wrong?
Health, Sports & Psychology

A question of ethics: right or wrong?

...cast aside. Shogan (1999) describes how in some cases teams of ‘experts’ (e.g. coaches, biomechanists, nutritionists, etc.) all work together to decide what is best for the athlete with little input from the individual themselves. The athlete is treated almost as an object with little or no consideration for them as an individual and their own thoughts and feelings....
View course A question of ethics: right or wrong?
Level 2: Intermediate 7 hrs