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5111_2
Measles has a devastating impact on the body's immune system that could make it harder to fight infections for years, a pair of studies show. The virus can cause "immune amnesia" - meaning the body forgets how to fight bugs it once knew how to beat. Measles also resets the immune system to a "baby-like" state, compromi...
How does measles wipe out immune memory?
1,368
The immune system has a memory of the hostile invaders it has fought off before. Part of this memory is kept in memory B-cells, which are a type of immune cell that has specialised in producing just one type of antibody. But the measles virus can infect and destroy these cells, causing "immune amnesia". Researchers at ...
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A teenager in Mexico has invented a bra to detect breast cancer. But does it work? And if so, how? Julian Rios Cantu, 18, has made a bra that he says will be an early warning system for breast cancer symptoms. The Eva bra, made by him and three friends who formed a company together, is only at the prototype stage. But ...
Will a cancer-detecting bra actually work?
1,046
This is in the really early stages. It hasn't been fully tested yet and there would need to be medical trials before cancer experts started recommending it as a way to find cancer. Anna Perman from Cancer Research UK told the BBC: "We know that tumours often have an abnormal system of blood vessels, but we also know th...
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UK companies with 250 or more employees must publish their gender pay gap data by April 2018. About 9,000 firms will have to calculate their gender pay gap and publish it on a government website by 4 April 2018, or 30 March for the public sector. With big companies revealing their figures, including the BBC, the gender...
What is the gender pay gap?
513
The gender pay gap is the percentage difference between average hourly earnings for men and women. Across the UK, men earned 18.4% more than women in April 2017, according to the Office for National Statistics (ONS). This figure is calculated on a 1% sample of employees' jobs. It takes the median average for men and wo...
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Facebook is finalising plans to launch its own crypto-currency next year. It is planning to set up a digital payments system in about a dozen countries by the first quarter of 2020. The social media giant wants to start testing its crypto-currency, which has been referred to internally as GlobalCoin, by the end of this...
How will Facebook's crypto-currency work?
867
Facebook wants to create a digital currency that provides affordable and secure ways of making payments, regardless of whether users have a bank account. The social networking site, which owns WhatsApp and Instagram, is hoping to disrupt existing networks by breaking down financial barriers, competing with banks and re...
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Several readers have asked whether Australia's famous eucalyptus trees have helped spread the bushfires which have raged for months. Also known as the gum tree, these forests are some of the most flammable in the world. Eucalyptus trees cover more than three-quarters of Australia's forested area and almost all of the h...
How do eucalyptus trees spread fires?
220
Eucalyptus trees cover more than three-quarters of Australia's forested area and almost all of the hundreds of species are native to the island nation. Strips of bark that hang off the trunk and the branches can ignite and carry a fire up the tree and can spread through the forest on the wind. "When the bark ignites it...
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President Donald Trump says he plans to end "birthright citizenship" in the US by executive order. Can he do that? In an interview with Axios, President Trump claimed that he was working on an end to birthright citizenship, the 150-year-old principle that says anyone born on US soil is an American citizen. "It was alwa...
3) Can Trump end birthright citizenship by executive order?
3,094
Most legal scholars agree that President Trump cannot end birthright citizenship with an executive order. "He's doing something that's going to upset a lot of people, but ultimately this will be decided by the courts," says Saikrishna Prakash, a constitutional expert and University of Virginia Law School professor. "Th...
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Seven months and nine days ago, 1.4 million people in Ireland voted to remove its anti-abortion laws. What (Taoiseach) Irish PM Leo Varadkar called a "quiet revolution", had culminated with a day when the Eighth Amendment was repealed. Irish Health Minister Simon Harris hailed the passing of the legislation as a "new e...
Can you access abortion services in all of Ireland's maternity units?
1,453
Not yet. Ireland has 19 maternity units, but only nine are currently providing abortion services. These are: - National Maternity Hospital in Dublin - Midland Regional Hospital in Westmeath - Rotunda Hospital in Dublin - Our Lady of Lourdes Hospital in Meath - University Hospital, Galway - Mayo University Hospital - Un...
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The drug-resistant fungus, Candida auris, was only discovered 10 years ago, but is now one of the world's most feared hospital microbes. There have been outbreaks across the world, and new research shows higher temperatures may have led to an increase in infections. The US Centers for Disease Control and Prevention (CD...
What is Candida auris?
462
Candida auris (C. auris) is a yeast, a type of fungus, which can cause infections in humans. It is related to the very common Candida albicans, which causes thrush. It was first discovered in the ear canal of a Japanese patient in Tokyo Metropolitan Geriatric Hospital in 2009. Most of the time, Candida yeasts live on o...
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The demand for on-demand TV has never been higher. Disney has announced its rival to the likes of Netflix and Amazon Prime - and they're calling it Disney+. In March, Apple announced its own streaming service: Apple TV+. But in a market that's getting more and more crowded, can they all survive? Disney has a big advant...
Why are Disney and Apple getting into streaming TV?
297
Disney has a big advantage because it has decades of filmmaking experience already, according to Shona Ghosh, senior tech reporter at Business Insider. "It costs a lot of money to make popular shows and Disney is an expert in offering really well-known film and TV franchises," she says. Disney can draw on its classic m...
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Cheap steel from China has been blamed for distorting global markets and putting other countries' steelmakers under pressure. How have we got here and why does it all matter? Chinese steel production has expanded hugely. Over the past 25 years, output has grown more than 12-fold. By comparison, the EU's output fell by ...
China's steel industry - what's the problem?
176
Chinese steel production has expanded hugely. Over the past 25 years, output has grown more than 12-fold. By comparison, the EU's output fell by 12% while the US's remained largely flat. The drive behind that stellar increase has been China's double-digit economic growth over the past decades. That led to ever more dom...
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The people charged with protecting the world's economy are meeting in Washington this week. The decisions made by the International Monetary Fund (IMF) affect people around the world. But what is the IMF, why is it important, and what criticism does it face? The IMF is an international organisation with 189 member coun...
What is the IMF?
259
The IMF is an international organisation with 189 member countries. They work together to try to stabilise the global economy. Any country can apply to join, as long as it meets a few requirements. These include providing information about its economy and paying in a sum of money called a quota subscription. The richer...
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The company behind infidelity dating website Ashley Madison has denied that hardly any women used the service. Its rebuttal followed an article by Gizmodo which suggested that only around 12,000 of the site's 36 million members were real women. Gizmodo had analysed the data stolen from Ashley Madison by hackers called ...
Did Ashley Madison use fake profiles?
469
There are suggestions from the leaked data, which included thousands of chief executive Noel Biderman's emails, that Ashley Madison did deploy fake profiles. One email written to Mr Biderman described a contractor building profiles, known as angels or engagers, "en masse". It even suggested staff were getting "writer's...
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Piles of rubbish dumped across England have been reported to councils more than one million times in 2016-17. Here are some of the things you wanted to know about fly-tipping. Fly-tipping is defined as "the illegal deposit of any waste on to land that does not have a licence to accept it", according to Keep Britain Tid...
Is there a link between the amount councils charge for taking rubbish to the tip and the levels of fly-tipping in those areas?
2,447
The Local Government Association, which represents councils, said there was "no evidence" to link fly-tipping to any particular trend. However, six of the 10 areas to have seen the biggest rises in fly-tipping in the last year do charge householders to take some types of rubbish to the tip, mainly building rubble, plas...
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Scientists and government officials meet this week in Paris to finalise a key assessment on humanity's relationship with nature. The Intergovernmental Panel for Biodiversity and Ecosystem Services, or IPBES, will issue the first report of this type since 2005. It will detail the past losses and future prospects for nat...
What exactly is biodiversity?
1,023
Biodiversity is just a sciencey word for all the amazing variety of life that can be found on Earth, their interactions with each other and with their environments. It encompasses everything from genes, through individual species such as orang-utans, through communities of creatures and then the whole ecological comple...
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Russian state TV is working on its own version of Chernobyl, a series based on the worst nuclear accident in history. The NTV drama will deviate from the acclaimed HBO series - and from historical reality - by claiming that the CIA was involved in the disaster. Director Aleksey Muradov claims it will show "what really ...
What did Russia think of HBO's Chernobyl?
1,288
There has been plenty of praise in Russia for the authenticity of Chernobyl. Izvestia newspaper declared it a more 'realistic' portrayal of the era than most Russian films manage. There's also admiration of how the series conveys the heroism of ordinary people. But there's been a crescendo of criticism, too. One column...
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Some 564 people have been into space - 65 of them women. That's despite the fact that the first woman in space, Soviet cosmonaut Valentina Tereshkova, went into orbit as early as 1963. It took Nasa 20 years to catch up and in 1983 Sally Ride became the third woman, and first American woman to go into space. Before her ...
Does space affect men and women differently?
968
VJ: Overall adaptation to the space environment is roughly the same for men and women but there are some differences. Women are more likely to feel sick when they go into space, men are more likely to get re-entry sickness when they come back to Earth. Men have more problems with their vision and hearing when they get ...
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President Donald Trump has threatened to withdraw the US from the World Trade Organization (WTO), claiming it treats his country unfairly. "If they don't shape up, I would withdraw from the WTO," Mr Trump said in an interview with Bloomberg News. The WTO was established to provide rules for global trade and resolve dis...
What's Trump's issue with the WTO?
1,413
The US president has been sounding off about unfair trade since even before he became president. Mr Trump said on Thursday that the 1994 agreement to establish the WTO "was the single worst trade deal ever made". The US has been embroiled in a tit-for-tat trade battle on several fronts in recent months. The one creatin...
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President Muhammadu Buhari has directed the Central Bank of Nigeria to block food importers' requests for foreign currency in a bid to boost local agriculture in Africa's most populous country. It is a continuation of a policy that the president began after coming to office in 2015, when he banned the use of foreign ex...
How much is Nigeria spending on importing food?
688
According to data from Nigeria's National Bureau of Statistics (NBS), the amount of money the country has been spending on importing food and drink increased from 2015 to 2017, dipped in 2018 and if the trend from the first quarter of this year continues, the bill will go up again for this year. In 2015, Nigeria spent ...
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The southern Indian state of Andhra Pradesh recorded 36,749 lightning strikes in just a 13-hour period on Tuesday, officials say. The number is unusually high and the result of "extreme weather patterns", according to the state disaster management authority. Nine people, including a nine-year-old girl, have been killed...
How common are lightning deaths in India?
1,631
At least 2,000 people have died in lightning strikes in India every year since 2005, according to the National Crime Records Bureau. In June 2016, 93 people were killed and more than 20 injured by lightning strikes in the states of Bihar, Jharkhand, Uttar Pradesh and Madhya Pradesh. India's death toll from lightning st...
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President Trump has told Americans to "get their shots" as measles cases spread across the country. "The vaccinations are so important," he told reporters outside the White House. Nearly 700 cases have been reported across 22 states amid a resurgence of the highly infectious disease, the US Centers for Disease Control ...
What has Trump said about vaccines?
1,374
Mr Trump's latest comments contrast markedly from his previous public statements about vaccinations. During a Republican primary debate in 2015, he suggested vaccines were responsible for what he called an "epidemic" of autism. He said he was in favour of vaccines, but wanted "smaller doses over a longer period of time...
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1405_0
Shares in Spotify have started trading in the New York, valuing the music streaming service at about $26bn. In an unconventional move, the firm has not issued new shares, with those held by its private investors being sold. The flotation marks a turning point for Spotify, which is the global market leader but is yet to...
Why is Spotify listing its shares?
958
The firm made a commitment to investors who backed it as the company was growing, that they would be given the chance to cash in their investment. So Spotify had to list its shares sooner or later. But it could also herald a new phase for the firm. Being publicly traded will put pressure on the management, and could pr...
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Outgoing German defence minister Ursula von der Leyen has been confirmed as the next president of the European Commission, replacing Jean-Claude Juncker. She will now form a new team of commissioners and they will start their new term on 1 November, a day after the UK is due to leave the EU. But what is the European Co...
What does the European Commission do?
422
Its job is to develop laws for member states and enforce them. Based in Brussels, it's the only EU body that can draft laws. It employs more than 32,000 staff in total and its running costs this year are EUR3.6bn. Once its proposals have the approval of the European Parliament and a council of 28 ministers from the EU ...
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For decades dentists have recommended flossing as an essential part of oral hygiene. But how useful is it really? An investigation by the Associated Press has revealed there is insufficient proof to back up this claim. The US Department for Health and Human Services and Agriculture admitted in a letter that the benefit...
Why do dentists say flossing is good for you?
696
Many dentists have said flossing can help remove plaque, food build-up between the teeth, reduce the risk of gingivitis, gum disease, and reduce the risk of tooth decay. In its statement the ADA said: "Cleaning between teeth removes plaque that can lead to cavities or gum disease from the areas where a toothbrush can't...
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"Unconscious bias" can lead to racist behaviour even if people do not consider themselves to be racist, the Duke of Sussex has said. Writing in Vogue, Prince Harry said unconscious bias was "something which so many people don't understand". He said prejudice was "learned from the older generation, or from advertising, ...
What is unconscious bias?
1,628
Unconscious bias is any detectable bias in our attitudes or behaviour that operates outside of our awareness. It could be asking a man rather than a woman to pitch a project because, subconsciously, you presume he will be more confident and assertive. Dr Doyin Atewologun is the director of the Gender Leadership and Inc...
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North Korean state media had strong words for Joe Biden - the former US vice-president and current presidential candidate - on Wednesday. Mr Biden had "gone reckless and senseless, seized by ambition for power", a commentary on the news website KCNA said. He was "an imbecile bereft of elementary quality as a human bein...
Why is North Korea criticising Joe Biden?
1,630
Wednesday's KCNA report accused Mr Biden of "rhetoric slandering the supreme leadership of the DPRK" during a recent election campaign. This appeared to refer to Mr Biden's rally in Philadelphia on Saturday, where he criticised Mr Trump for working with "tyrants like [Russian President Vladimir] Putin and Kim Jong-un"....
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Guatemala's Fuego volcano erupted at about noon local time (18:00 GMT) on Sunday. It is one of Central America's most active volcanoes but Sunday's eruption caused more fatalities than any of those previously recorded at Fuego. At least 69 people are known to have died. Most of them lived in villages on the slopes of t...
What type of volcano is Fuego?
424
Fuego is a stratovolcano or composite volcano. Its steep, conical shape, which is typical of this type of volcano, can be seen from the capital, Guatemala City, 44km (27 miles) south-west of Fuego's summit. Fuego sits on the Ring of Fire, a horse-shoe-shaped string of volcanoes, earthquake sites and tectonic plates aro...
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The internal Labour row over anti-Semitism has dragged on for nearly three years. Here's a guide to what's been going on. Jewish people have faced prejudice and hostility for centuries. During World War II, six million Jews were murdered by the Nazis or their accomplices in what is known as the Holocaust. Modern-day an...
What is the Labour anti-Semitism row about?
2,796
Anti-Semitism was generally not regarded as a big problem in the Labour Party before Jeremy Corbyn's election as leader in September 2015. Since then, things have changed, with Mr Corbyn and other figures on the left setting a new political direction. There has been an influx of new members, many of whom are vocal crit...
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Heavy seasonal rains are a regular feature of life in Nigeria and towns close to the country's main rivers are particularly vulnerable. This year floods have killed almost 200 people with many thousands displaced. The National Emergency Management Agency (NEMA) say these figures are likely to rise as the full impact be...
Are Nigeria's rains causing the floods?
2,303
Heavy rainfall has certainly increased the likelihood of rivers overflowing and flash floods. And there's evidence to suggest increasing rainfall over time. Data from the Nigerian Meteorological Agency from 1981-2017, analysing 13 affected locations, reveals a rising trend in annual rainfall, which it says is likely to...
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Former FBI director James Comey's evidence to the Senate Intelligence Committee has been keenly awaited by the US public. Mr Comey, who was sacked by Donald Trump on 9 May, gave some clues to the inner workings of the Trump administration and its relationship with the intelligence services. But despite the forensic exa...
Are there tapes of Mr Comey's conversations with Mr Trump?
1,054
Three days after Mr Comey was fired, the president tweeted that the former FBI director should hope there were no tapes of their conversations. Mr Comey has since expressed the hope that there are tapes and at the hearing he urged the president to release all their conversations if tapes exist. "I'm good with it," he s...
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MPs have rejected Prime Minister Boris Johnson's attempt to hold an early general election on 12 December. But why does the PM want an election and what are his remaining options? The next general election is not due until 2022, but the PM wants an early election to try to restore the Conservative Party's majority. Whi...
Why does Boris Johnson want an early election?
180
The next general election is not due until 2022, but the PM wants an early election to try to restore the Conservative Party's majority. While an early election carries risks, Mr Johnson hopes to win more seats in the House of Commons, to make it easier to pass a Brexit deal.
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Feeling a little lost on Brexit? Never really got your head around it in the first place? Let us walk you through it. Brexit is short for "British exit" - and is the word people use to talk about the United Kingdom's decision to leave the European Union (EU). The EU is a political and economic union of 28 countries tha...
What is Brexit?
118
Brexit is short for "British exit" - and is the word people use to talk about the United Kingdom's decision to leave the European Union (EU).
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