Genetically modified crops and plants and biotechnology is increasingly used in South America. GM Soybean (roundup-ready) saves farmers large amounts of money on herbicides, and since the GM crops need less spraying, there are fewer residues left on the crop, making it safer.
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How does the brain develop in the embryo, how does the nervous system respond to injury, including spinal cord injury, and what are the prospects for spinal cord repair ? Dr. Adrian Pini,developmental neurbiologist from GKT Medical School, London, tells us more.
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Using measurements taken from thousands of people it is possible to rebuild, in clay, what a person's face would have looked like during life. Caroline Wilkinson is a facial anthopologist and describes how a face is reconstructed using clay, the practical applications of facial anthropology, including forensic and archaeological work.
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SCUBA divers Shwen Gwee and Nick Cuttler talk about scuba diving, where to go diving, how scuba divers are helping with marine conservation, and what happens to your body when you scuba dive. Guest Ben Allanach, from CERN, joins us to talk about the big bang.
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Scientific evidence, including fingerprints, dental profiles, DNA technology including DNA fingerprinting and the use of DNA to identify key chracteristics of a criminal such as eye colour, ethnicity and sex, is one of the most important determinants of the outcome of a criminal investigation. DCI Tom Harper, from Essex Police, talks about how these techniques work and their potential constraints.
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You might be given just a part of body, sometimes a whole body, sometimes just a bone. But how old is the material, is it even human, and what were the events that lead to its being found where it was ? These are the questions that you ask a forensic archaeologist and Corinne Duhig came along to tell us how she goes about answering them.
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Changing the appearence of a part of the body, either because it is damaged by injury such as burning or cutting, by diseases such as breast-cancer, or as a natural consequence of ageing, is the domain of the plastic surgeon. But what sort of alterations are possible? George Lamberty, consultant plastic surgeon, joins us to talk about it.
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A serious problem with many anti-cancer therapies is their failure to selectively target the tumour, avoiding collateral damage to other healthy tissues. One way to surmount this problem is to engineer viruses which selectively multiply within tumour cells, and not within healthy tissue. This is the strategy adopted by Professor Moira Brown who is using the HSV strain 1716 mutant for Glioma therapy.
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For Brain Awareness Week, the Naked Scientists talk with Professor Joe Herbert about what is depression, what is post-traumatic stress disorder (PTSD), how depression can harm the brain, how disease can affect the brain, including causing memory loss and mood changes, and how we can treat psychological diseases.
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Peter Brennan, an expert on smells and odours, discusses how the nose picks up smell, why animals have a more sensitive sense of smell than people, what is a smell, what are pheromones, including how pheromones work, and how is smell important for sexual attraction.
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