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category_outlined / 科學
New ScientistNew Scientist

New Scientist 7-sep-19

New Scientist covers the latest developments in science and technology that will impact your world. New Scientist employs and commissions the best writers in their fields from all over the world. Our editorial team provide cutting-edge news, award-winning features and reports, written in concise and clear language that puts discoveries and advances in the context of everyday life today and in the future.

國家/地區:
United Kingdom
語言:
English
出版商:
New Scientist Ltd
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mood boosters

“KILLS all known germs” was once an effective advertising slogan. Now we know this promise isn’t as desirable as it might sound. Not all “germs” are bad. In fact, you couldn’t survive without help from the many microbes that live on and within you. A thriving microbiome isn’t just essential for your physical health, though. In the latest twist to this story it turns out that microbes in your gut also influence your mood. These so-called psychobiotics are intimately entwined with us from birth. They help shape the developing human brain, particularly the areas associated with emotions. They also exert day-to-day control over how we feel. The mystery of how single-celled organisms have an effect on our minds from a distance is starting to be solved (see page 34). Intriguingly, bacteria in our…

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new scientist

PUBLISHING & COMMERCIAL Display advertising Tel +44 (0)20 7611 1291 Email displayads@newscientist.com Commercial director Chris Martin Display sales manager Justin Viljoen Lynne Garcia, Bethany Stuart, Henry Vowden, (ANZ) Richard Holliman Recruitment advertising Tel +44 (0)20 7611 1204 Email nssales@newscientist.com Recruitment sales manager Mike Black Nicola Cubeddu, Viren Vadgama, (US) Jeanne Shapiro New Scientist Live Tel +44 (0)20 7611 1245 Email live@newscientist.com Events director Adrian Newton Creative director Valerie Jamieson Event manager Henry Gomm Sales director Jacqui McCarron Exhibition sales manager Rosie Bolam Marketing manager Katie Cappella Events team support manager Rose Garton Marketing executive Jessica Lazenby-Murphy Marketing Head of campaign marketing James Nicholson Poppy Lepora, Chloe Thompson Head of customer experience Emma Robinson Head of data analytics Tom Tiner Web development Maria Moreno Garrido, Tom McQuillan, Amardeep Sian MANAGEMENT Chief executive Nina Wright Finance director Jenni Prince Chief technology officer Chris Corderoy Marketing director Jo Adams Human resources Shirley Spencer HR coordinator Serena Robinson Facilities manager Ricci Welch Executive assistant Lorraine Lodge Receptionist…

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dorian’s devastation

PARTS of Grand Bahama were battered by the strongest winds of hurricane Dorian for up to 15 hours on Monday, driving a storm surge that inundated most of the Caribbean island. No land in or around the Atlantic, and possibly worldwide, has ever been subjected to such powerful hurricane winds for so long in recorded history. By Tuesday, five deaths and extreme damage to infrastructure had been reported in the nearby Abaco Islands, also part of The Bahamas, which were struck first. The full extent of the impact on Grand Bahama is unlikely to become clear for days. When New Scientist went to press, the island was still being hit by extreme weather, even as Dorian weakened from a category 5 to a category 3 hurricane and moved slowly away. Dorian is now…

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rampage of the super pest

THE race to get to grips with one of the most destructive pests on the planet is gathering pace. The fall armyworm has ruined billions of dollars of crops in Africa over the past few years and is spreading quickly. Last week, Japan agreed to buy a huge consignment of maize from the US, largely because of fears its own crop will be eaten by the pest. With the prospect of this marauding insect reaching Australia and even Europe before long, scientists are now working frantically to stop it. The first thing you need to know about the fall armyworm is that it is actually a caterpillar, the offspring of an innocuous-looking brown moth. It was until recently found just in South America and southern areas of the US. The pest…

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there is no such thing as a ‘gay gene’

THE largest ever genetic study of sexual behaviour has found that many genes influence sexuality, each with tiny effects. Previous studies have identified individual genes that may influence sexual orientation in boys and men. But these studies have all been too small to pin down any genetic drivers of sexuality. Robbee Wedow at the Broad Institute of MIT and Harvard and his colleagues collected data from the UK Biobank and the genetic testing firm 23andMe. Both organisations ask the genomes’ owners about their sexual behaviour. This gave the team genetic data and information on the sexual behaviour of around 477,000 people. First, the team compared the genomes of people who said they’d had sex with people of the same sex with those who reported only heterosexual behaviour. They found that a person’s genes…

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have we seen signs of a volcanic exomoon?

PLUMES of volcanic gas spotted near a distant planet may be the first indirect evidence we have seen of a moon in a different solar system – an exomoon. Astronomers suspect that there are huge numbers of exomoons out there. So far, however, we haven’t obtained concrete evidence for any of them, largely because they are so small. Apurva Oza at the University of Bern in Switzerland and his colleagues used the La Silla Observatory in Chile to examine light coming from an exoplanet orbiting a star called WASP-49B about 550 light years from Earth. 550 Distance from Earth to the star WASP-49B in light years The exoplanet has roughly half the mass of Jupiter. The team detected what seems to be the signature of sodium gas around the planet. However, the signal extends…

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