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8th Sep 2008

Repelling Pests


Chris Smith

Helen Scales
A mosquito biting a finger

In this first episode of the Naked Scientists in Africa we find out why mosquitoes are the most dangerous insect in the world and why they find some of us more tasty than others. We also look into a new trial in Kenya to use plants as natural pesticides, find out about a scanning technique that spots cancers as small as a pinhead and hear about new scientific methods being used in South Africa to monitor the ivory trade and stop poachers in their tracks! Plus, in Question of the Week we find out if it's possible for our memory to fill up.

in association with
Royal Society of Chemistry
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News

(c) CDC/ Dr. F. A. Murphy

New Method to Vaccinate against the Flu

New approach to battling flu - Scientists have developed a new class of flu vaccines that might help to contain a future pandemic. Writing in this weeks PNAS New York-based researcher David Ho and his team have used DNA coding for part of the surface coat of flu viruses to protect mice against a let...

(c) Jan Derk

An Ancient Taste for Shellfish

It’s a myth that if a scuba diver spies a glimmering pearl inside a giant clam and reaches in to steal it his or her arm will be grabbed by the slamming jaws of the twin-shelled mollusc. Giant clams can grow to over a metre long and they do make pearls but it is virtually impossible to get yourself ...

(c) CoCodoko @ Wikimedia

The Genetic Key to a Happy Marriage!

Polygamy - of mice and men, or voles at least - Scientists have shown that a gene variant carried by some men could be the cause of marital dysharmony. The research builds on previous work carried out in rodents showing that prairie voles, which are highly monogamous, carry a different form of a gen...

(c) National Science Foundation

Cooperating Bats

A new study has shown that Bats might stay quiet and listen to each other when they are out hunting for their dinner. That’s according to Cynthia Moss and her colleagues from the University of Maryland in the states who have been studying big brown bats in captivity, and tracking how their ultrason...


Interviews

(c) Jim Gathany

Mosquitoes - Why do they find you so attractive?

Why do mosquitoes find people so attractive? What can we learn from those that never seem to get bitten?

(c) Freestyle NL

Push-Pull - Using Plants as Natural Pesticides

How can we use a plants natural defence chemicals to ward off pests, such as insects and weeds?


QotW

(c) WriterHound @ Wikipedia

Can my brain become too full?

How much information can a brain take before it starts overwriting stuff that’s already there.




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