A study by Newcastle University shows a 20 % sugar tax could discourage shoppers from buying unhealthy breakfast cereals.
Researchers found demand for sugary cereals fell by 48 per cent if consumers knew a tax was being applied.
The study, carried out by experts from Newcastle, York and Anglia Ruskin Universities, examined the impact of both a 20% and 40% tax on unhealthier cereals and soft drinks containing sugar. It also looked at whether telling people they were being taxed influenced the way they shopped.
People taking part in the study and were given a budget of £10 to spend on soft drinks and cereals. The products were classed by researchers as healthier or less healthy, depending upon their nutritional value.
Lead researcher, Daniel Zizzo, Professor of Economics at Newcastle University Business School, said:
Our findings suggest a 20% sugar tax would work and lead to large changes in shopping behaviour.
We know the Government is already introducing a sugar levy on fizzy drinks in 2018," said Professor Zizzo. "Our evidence shows that it could be applied to other products successfully, though I expect the size of the effect to be smaller than what we found in our study."
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Scientists in Newcastle have successfully demonstrated that praying mantis insects do see in 3-D - after fitting some of the insects with miniature 3-D glasses.
They say the research will help improve the vision of robots.
In an experiment that began almost a year ago, tiny 3D glasses have been made for praying mantises to help scientists understand sight.
In the experiments, mantises fitted with tiny glasses attached with beeswax were shown short videos of simulated bugs moving around a computer screen.
The mantises didn't try to catch the bugs when they were in 2D.
But when the bugs were shown in 3D, apparently floating in front of the screen, the mantises struck out at them.
This shows that mantises do indeed use 3D vision.
"Despite their minute brains, mantises are sophisticated visual hunters which can capture prey with terrifying efficiency. We can learn a lot by studying how they perceive the world. Better understanding of their simpler processing systems helps us understand how 3D vision evolved, and could lead to possible new algorithms for 3D depth perception in computers."
Watch: Dr Ghaith Tarawneh from Newcastle University, who says It is very exciting because insects are really simple beings and you wouldn't think they have the same level of perception as we do but obviously our experiments have demonstrated this.
Watch Professor Jenny Read, Professor of Vision Science at Newcastle University, who says we're going to compare it to how human 3D vision works.
We are going to compare it to how human 3D vision works. Is it the same? - in which case, that would be amazing that insects and humans have separately evolved basically the same sort of 3D vision, or perhaps even more interestingly, it is possible that insects have come up with a kind of cheap and cheerful 3D.
The Newcastle University team will now continue the research examining the algorithms used for depth perception in insects to better understand how human vision evolved and to develop new ways of adding 3D technology to computers and robots.
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Two Newcastle University medical students who died after being stabbed in Borneo were unlawfully killed according to the findings of a coroner at the official inquest into their deaths.
Aidan Brunger, from Kent, and Neil Dalton, from Ambergate in Derbyshire, were killed in the unprovoked attack in Kuching, Sarawak, on the island of Borneo in August last year.
The country's high court sentenced Zulkipli Abdullah, 23, to death for the murder in March. An inquest into their deaths at Derby and South Derbyshire Coroner's Court heard evidence from pathologist Michael Biggs who said both 22-year-olds suffered "sharp force injuries".
Mr Brunger suffered a stab wound to the left side of the chest, while Mr Dalton was found to have two stab wounds to the chest and a further two to the back.
Senior coroner for Derby and Derbyshire Robert Hunter said: "Having listened to evidence from Mr Parr (a witness) and the knowledge of criminal proceedings, there's one verdict that I can return in respect of both Aidan Brunger and Neil Dalton and that is unlawful killing.
"There were great hopes for them as doctors. The light that they shine far outweighs the darkness that befell them on August 8. I know you will miss them terribly."
The families of both men released a joint statement on the announcement of the verdict.
We are satisfied with the coroner’s verdict of unlawful killing.
Aidan and Neil were murdered in a random and totally unprovoked attack on the street as they walked home with other medical students.
The loss of a child is utterly horrific and we still find it hard to believe we will never see our sons again.
We will always miss Neil and Aidan terribly, and wonder what might have been if they were able to pursue their dream of being doctors and helping others.
The support from family and friends has been overwhelming and we would like to thank them all.
We would also like to thank Newcastle University, Victim Support and our Police Family Liaison Officers, who have helped us through this dreadful time.
Our sons made us so proud of what they achieved in their too short lives, we loved them very much, and we always will.