413 search results
Tamsin Edwards - Stories of Change
Nature & Environment

Tamsin Edwards - Stories of Change

...carbon emissions, set against the difficulties of obviously the radioactive waste. I am broadly in favour of phasing out nuclear, because I think renewables are the way to go, but that’s my own personal view. RH: When you look at this whole sphere, energy, climate, all that stuff, how optimistic are you? TE: I’m an optimist in the sense that I think humans are...
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Audio 5 mins
General principles of cellular communication
Science, Maths & Technology

General principles of cellular communication

...carbon source of V. atypica. Autoinducer secretion is also important for S. gordonii and Porphyromonas gingivalis in the formation of mixed biofilm communities that provide mutual protection...General principles of cellular communication: 1.2 Summary of Section 1 - To survive and adapt, cells need to both sense their environment and communicate with each other. An...
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Level 3: Advanced 8 hrs
Managing coastal environments
Nature & Environment

Managing coastal environments

...carbon dioxide emitted into the atmosphere from various sources such as fossil fuel power stations. However, before undertaking any drastic or expensive actions, governments need to know how good the predictions of the effects of global warming will be – how accurate are they? To examine this we need to look at predictions in more detail. The Intergovernmental Panel on...
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Level 2: Intermediate 3 hrs
Assessing contemporary science
Science, Maths & Technology

Assessing contemporary science

...carbon content within less than one year whilst at the same time having no toxic properties. In our labs, we’re working in partnership with DEFRA and a UK polymer company to undertake a series of biodegradability and ecotoxicology experiments and tests. To do this, we use instruments, such as this respirometer, which measures the breakdown of plastic materials through...
View course Assessing contemporary science
Level 2: Intermediate 9 hrs
An introduction to exoplanets Badge icon
Science, Maths & Technology

An introduction to exoplanets

...carbon dioxide...Week 2: Planets, large and small: 6.2 Giant planets - Now take a look at these images of the giant planets. [An image of Jupiter.] Figure 19 Image of Jupiter taken by the Hubble Space Telescope showing the motion of its bands of clouds around the Great Red Spot [An image of Saturn and its rings.] Figure 20 A spectacular image of Saturn and its rings,...
View course An introduction to exoplanets
Level 1: Introductory 24 hrs
The MMR vaccine: public health, private fears
Health, Sports & Psychology

The MMR vaccine: public health, private fears

...carbon sink’ (up from 51 per cent to 58 per cent); a five per cent increase of people incorrectly identifying ‘less rainfall in winter’ as a predicted outcome of climate change (from 19 per cent to 24 percent), although correct responses (‘more rainfall in winter’) only dropped by one per cent (from 53 per cent to 52 per cent); a seven per cent drop in those who...
View course The MMR vaccine: public health, private fears
Level 3: Advanced 20 hrs
Mathematics for science and technology Badge icon
Science, Maths & Technology

Mathematics for science and technology

...carbon atoms. A mole of carbon dioxide (one carbon atom joined to two oxygen atoms), contains Avogadro’s number of these molecules. It is important to realise that, although in everyday usage it is common to say that you 'weigh so many kilos', there are two things wrong with this usage from the scientific point of view. First, as noted in Box 1, the kilogram is not a...
View course Mathematics for science and technology
Level 1: Introductory 24 hrs
Obesity: balanced diets and treatment
Science, Maths & Technology

Obesity: balanced diets and treatment

...carbon dioxide (CO2) is also produced at this stage (as it is from the pyruvate into acetyl CoA conversion earlier). Other products of the TCA cycle are further processed to make more ATP, and this step requires oxygen (O2) (the O2 we breathe in) and produces water (H2O) as a waste product. Energy is released when certain nutrients are metabolized in the body and this...
View course Obesity: balanced diets and treatment
Level 2: Intermediate 15 hrs