Scientists have discovered that plant leaves activate defence mechanisms against plant eating insects within twenty seconds of an insect walking across them. Dr Alan Bown will be presenting the results of his footsteps research at the Society for Experimental Biology conference on Tuesday 9 April.

Dr Bown and colleagues studied the effects of insects traipsing across leaves, observing the chemical responses in the leaves over time. Ten seconds after larvae had crawled across the leaves, supe

Ticks spread a greater variety of diseases than any other blood-feeding creature, including mosquitoes. Now scientists are developing vaccines that prevent ticks from digesting the blood of their animal or human victim, according to research presented today (Monday 08 April 2002) at the spring meeting of the Society for General Microbiology at the University of Warwick.

“A new solution to controlling tick-borne diseases is to develop vaccines against the ticks and not the microbes that cause

Protein packaging may enhance MRI contrast.

Images of body tissues and organs could soon be brighter and sharper thanks to a technique developed by Italian chemists. They have made the chemical contrast agents used in magnetic resonance imaging (MRI) produce a stronger signal by trapping them in protein cages just 12 millionths of a millimetre (nanometres) or so widesup> 1 .

Such improvements increase the contrast of the images, so they should reveal more detailed

Rumour and secrecy hampers response to report of human clone.

A dearth of information surrounding claims that a woman is pregnant with the first cloned baby is stifling informed scientific judgement or debate. Second-hand reports and rumours highlight a factual vacuum under which a controversial cloning project is proceeding.

Last week, fertility doctor Severino Antinori revealed to Gulf News journalist Kavitha Davies that one of his patients is eight weeks pregnant with a c

New VLT Discovery Pushes Back the Beginnings

Using the ESO Very Large Telescope (VLT), a team of astronomers from The Netherlands, Germany and the USA [1] have discovered the most distant group of galaxies ever seen, about 13.5 billion light-years away. The Photo shows the sky region near the power

A new type of optical material has been developed by physicists that could replace the electronics used to route the light signals through optical fibre telecommunications networks. It could even provide the basis for future `optical computers` working on light pulses instead of electric signals. At the Condensed Matter conference on Monday 8 April, part of the Institute of Physics Congress in Brighton, Dr David Sharp, a member of Dr Andrew Turberfield`s research team from the University of Oxford, w