1,813 search results

Little white lies: Whiteness, reflexivity, race and criminology
Education & Development

Little white lies: Whiteness, reflexivity, race and criminology

...write about infrequently because they are considered ‘ultra vires’, out of scope for being intimate, private or domestic. No imagination but the nation: Whiteness Phenotypical Whiteness and structural Whiteness are often conflated and regularly confused. What I see in the mirror is not causing divisions and hierarchies in one of the most iconic states of Black Africa,...
Panic attacks: what they are and what to do about them
Health, Sports & Psychology

Panic attacks: what they are and what to do about them

...Write your thoughts in the box below. Your comments will only be visible to you. Discussion All of us probably feel panicky at some points but even if some of the feelings and sensations might be similar, the experience of a full-on panic attack is different as you will see when you hear people talking about their experience of panic attacks. Feeling panicky may be a...
Climate change
Nature & Environment

Climate change

...writing in 1862, John Tyndall (Figure 6) described the key to our modern understanding of why the Earth's surface is so much warmer than the effective radiating temperature. Tyndall's careful experimental work had established what others only suspected: expressed in modern scientific terms, certain atmospheric gases absorb infrared radiation with wavelengths in the range...
Level 2: Intermediate 18 hrs
Introduction to ecosystems
Science, Maths & Technology

Introduction to ecosystems

...Creative Commons Attribution-NonCommercial-ShareAlike 4.0 Licence. The material acknowledged below is Proprietary and used under licence (not subject to Creative Commons Licence). Grateful acknowledgement is made to the following sources for permission to reproduce material in this course: Course image: courtesy of Dr. David J. Robinson, The Open University Figure 1:...
Level 1: Introductory 12 hrs
What chemical compounds might be present in drinking water?
Science, Maths & Technology

What chemical compounds might be present in drinking water?

...writing, in 2013, this remains the worst industrial accident in US history. In 2013 at Waco in Texas, a large explosion occurred at a fertiliser plant that stored ammonium nitrate. Today, ammonium nitrate is used extensively in industrial explosives and propellants. For instance, commercial blasting explosive contains ammonium nitrate, fuel oil and TNT. Video 4 shows that...
Climate change: transitions to sustainability
Nature & Environment

Climate change: transitions to sustainability

...creative solutions to problems, and a capitalist economic system can offer the means of replicating them quickly. But such best practice won't be universalised without external pressure from government and civil society. There is no evidence of widespread preparedness for a shift to ‘intentional communities’, or a locally based alternative to economic globalisation,...
What is a scientific model?
Science, Maths & Technology

What is a scientific model?

...write down some simple mathematics, and work with and generate some insights. So it’s this sort of stripped down mathematical description of the essence of things that you can then embody a computer code with. So you can put the system of simple equations or perhaps quite complex equations into a computer programme and you can then set the programme to go to watch the...
Why are maggots making a comeback in hospitals?
Health, Sports & Psychology

Why are maggots making a comeback in hospitals?

...writing on the role of maggots in helping wounds heal revolves around battlefield injuries. Although such wounds can and do kill outright, the majority of deaths from war injuries have been caused by infection. Festering wounds often attract blowflies looking for a spot to lay their eggs, which then hatch into larvae. Napoleon’s battlefield surgeon, Dominique Larrey,...