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It will be difficult – but not impossible – to detect the chemical breakdown products of any nerve agents that may have been used in the Damascus attack, but access to the victims could be critical in proving the illicit use of chemical weapons.

Jessica Judd has put her exam results on the back-burner

World Championships 2013: Jessica Judd faces track test as tough as her A-levels

The world's best will examine recent strides made by Britain's middle-distance rookie

US scientists have made claims that low-doses of aspirin may stop growth of breast cancer

Low-dose aspirin may stop growth of breast cancer, study suggests

Small doses of aspirin may block the growth and spread of the most virulent strains of breast cancer, research has revealed.

Scientists are closer to building a biological computer after they managed to make a transistor from DNA and RNA

Biological computer that 'lives' inside the body comes one step closer as scientists make transistor out of DNA and RNA

Finding could lead to new biodegradable devices based on living cells that are capable of detecting changes in the environment

Standing up daily for an extra 90 minutes significantly lowers your chances of developing this serious metabolic disorder

Desk workers - stand up for your health: Millions may be making themselves ill by spending their working lives sitting down

If you are reading this sitting down then the chances are you are also increasing your risk of developing heart disease, blood clots on the brain and even certain types of cancer.

Levi-Montalcini: she attributed her success partly to ‘the habit of underestimating obstacles’

Rita Levi-Montalcini: Neuroscientist honoured for her work on cell development

Her experience of women’s subordinate role, she said, told her 'I was not cut out to be a wife'

Two American scientists win Nobel chemistry prize for understanding how the billions of cells within the human body communicate with the outside world

Robert Lefkowitz and Brian Kobilka won the prize for their pioneering roles in revealing the inner workings of an important family of protein molecules called the G-protein-coupled receptors

Rashid Ramzi has been named as one of six competitors from last summer's Beijing Games who have failed retrospective tests for
the blood-boosting hormone CERA

Delay awarding Olympic medals for eight years, says biochemist

Medals won at the London Olympics should not handed out until 2020 because it will be years before testers can be sure that the athletes did not take drugs, a leading sports scientist has suggested.

Chris Cooper: The biochemist says cheat may exploit medical breakthroughs

Delay awarding London 2012 Olympic medals for eight years, says biochemist

Cheating athletes 'could exploit medical advances by using drugs not yet detectable'

Performance boost: Canadian sprinter Ben Johnson

Run, Swim Throw, Cheat: The Science Behind Drugs In Sport, By Chris Cooper

A scientific review of genetic technology that can give tomorrow's athletes a helping hand

Breakthrough could lead to cure for chronic liver disease

Medical scientists have taken an important step towards understanding how the diseased liver can repair itself in a breakthrough that could eventually lead to the development of new treatments for chronic liver illnesses, which at present can only be cured by organ transplants.

Mild chemical agents are used for cases similar to the Tottenham riots

Government 'may sanction chemical incapacitant use on rioters', scientists fear

Leading neuroscientists believe that the UK Government may be about to sanction the development of chemical incapacitants for British police that would be banned in warfare under an international treaty on chemical weapons.

Digital 3D 'bins' have a place, but will twitchers be switchers?

A greenfinch looks on suspiciously from afar. The finest details of his green and yellow plumage and his eyes twitching from side to side are visible through the binoculars.

Empires of Food, By Evan DG Fraser and Andrew Rimas

Written in lively style by two American academics, this book questions the stability of the "food empire" on which humanity depends. We are complacent, they claim, due to four assumptions: there will be more "biochemical fixes" to maintain bumper crops; continuation of the "mild, sunny weather" of recent centuries; dependence on fragile monocultures; reliance on cheap fossil fuels to power freezers and synthesise fertilisers. "For a hundred years," the authors point out, "our industrial food empire has been astoundingly successful but all empires stumble and fall."

Baruch Blumberg

Further to yesterday's obituary of the Nobel Prize-winning scientist Baruch Blumberg, Tam Dalyell writes:

Last Night's TV: Women in Love/BBC4<br />Monroe/ITV1<br />A Farmer's Life For Me/BBC2

Rather a lot happened in the first part of BBC4's Women in Love – two drownings, at least one fight, a rape – though you wouldn't necessarily know it. The quiet, almost whimsical, nature of William Ivory's script allowed events to unfold gently, playing second fiddle to the internal dramas of the characters. It's a risky strategy: an adaptation of D H Lawrence's dual novels, The Rainbow and Women in Love, in which the predominant themes are sex and guilt could be a recipe for introspective torpor if ever there was one. And yet, to my mind, it all came off.

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Chelsea vs Tottenham: Harry Kane was at Wembley to see Spurs beat the Blues and win the Capital One Cup - now he's their great hope

Harry Kane interview

The striker was at Wembley to see Spurs beat the Blues and win the Capital One Cup - now he's their great hope
The Last Word: For the good of the game: why on earth don’t we leave Fifa?

Michael Calvin's Last Word

For the good of the game: why on earth don’t we leave Fifa?
HIV pill: Scientists hail discovery of 'game-changer' that cuts the risk of infection among gay men by 86%

Scientists hail daily pill that protects against HIV infection

Breakthrough in battle against global scourge – but will the NHS pay for it?
How we must adjust our lifestyles to nature: Welcome to the 'Anthropocene', the human epoch

Time to play God

Welcome to the 'Anthropocene', the human epoch where we may need to redefine nature itself
MacGyver returns, but with a difference: Handyman hero of classic 1980s TV series to be recast as a woman

MacGyver returns, but with a difference

Handyman hero of classic 1980s TV series to be recast as a woman
Tunnel renaissance: Why cities are hiding roads down in the ground

Tunnel renaissance

Why cities are hiding roads underground
'Backstreet Boys - Show 'Em What You're Made Of': An affectionate look at five middle-aged men

Boys to men

The Backstreet Boys might be middle-aged, married and have dodgy knees, but a heartfelt documentary reveals they’re not going gently into pop’s good night
Crufts 2015: Should foreign dogs be allowed to compete?

Crufts 2015

Should foreign dogs be allowed to compete?
10 best projectors

How to make your home cinema more cinematic: 10 best projectors

Want to recreate the big-screen experience in your sitting room? IndyBest sizes up gadgets to form your film-watching
Manchester City 1 Barcelona 2 player ratings: Luis Suarez? Lionel Messi? Joe Hart? Who was the star man?

Manchester City vs Barcelona player ratings

Luis Suarez? Lionel Messi? Joe Hart? Who was the star man at the Etihad?
Arsenal vs Monaco: Monaco - the making of Gunners' manager Arsene Wenger

Monaco: the making of Wenger

Jack Pitt-Brooke speaks to former players and learns the Frenchman’s man-management has always been one of his best skills
Cricket World Cup 2015: Chris Gayle - the West Indies' enigma lives up to his reputation

Chris Gayle: The West Indies' enigma

Some said the game's eternal rebel was washed up. As ever, he proved he writes the scripts by producing a blistering World Cup innings
In Ukraine a dark world of hybrid warfare and murky loyalties prevails

In Ukraine a dark world of hybrid warfare

This war in the shadows has been going on since the fall of Mr Yanukovych
'Birdman' and 'Bullets Over Broadway': Homage or plagiarism?

Homage or plagiarism?

'Birdman' shares much DNA with Woody Allen's 'Bullets Over Broadway'
Broadchurch ends as damp squib not even David Tennant can revive

A damp squib not even David Tennant can revive

Broadchurch, Series 2 finale, review