Separately, mining heavyweight Rio Tinto ran its own inquiry and uncovered a culture of bullying, harassment and racism, including 21 complaints of actual or attempted rape or sexual assault in the past five years.

While concerns have been posed over the harm nicotine in vapes may cause, the NHS says most of the harm from smoking comes from the 'thousands of other chemicals in tobacco smoke, many of which are toxic' and advises that nicotine replacement therapy (NRT) has been used widely for many years.

A scroll through TikTok will offer accounts from vendors advertising a selection of the 'bars' on offer, with the 'vapinguk' tag amassing some 54,600 views; peanuts compared to the 2.2 billion views under '#vaping' and 16.6 million under '#vapingtricks'.

A member of security staff at Twitter's Europe, Middle East and Africa (EMEA) headquarters in Dublin told reporters that nobody was coming into the office on Friday and employees had been told to stay home.

Hundreds of UK staff could be among the thousands of Twitter employees set to be sacked by Elon Musk - as the social media platform's offices in London were locked this evening with workers told to stay at home until next week.

Mesh routers often have fewer ports than single-point routers, too. Some lack USB jacks, and others limit you to only one or two spare Ethernet ports for wired connections to media streamers, smart home bridges and other common peripherals. Some mesh routers feature no additional ports whatsoever on the satellite extenders.

"No, I don't believe it changed direction at all, and importantly, the decisions made in relation to that matter ... I actually took no role in the specific decisions," Mr Barbour told a parliamentary committee on Thursday.

Most of the best two-in-ones are convertible laptops, with 360-degree hinges where the keyboard and trackpad rotate around to the back of the display. They likely come with a Windows or Chrome operating system. There are some excellent two-in-one laptops that are essentially Windows 10 or Chrome OS tablets with a detachable keyboard. They work better as tablets, but are still good in laptop mode, and we've included models like the Surface Pro 8 and the Lenovo IdeaPad Flex 5 Chromebook. Both styles of two-in-one feature touchscreens and typically support pen input. Most also include a headphone jack and backlit keyboard.

With full support for Wi-Fi 6 and a second 5GHz band that serves as a dedicated backhaul connection for the router and its satellites, the powerful system was downright impressive in our tests, with top speeds of nearly 900Mbps at close range in our lab. That's one of the fastest numbers we've ever seen from a mesh router in that test, and it only fell to 666Mbps at a distance of 75 feet -- which is still faster than we saw from the Nest Wifi up close, just 5 feet away.

Even if you do own a device like that, you'll likely be better off on the 5GHz band than on 6GHz. Seriously. In most cases, both will top out at whatever max speeds you're paying for from your internet provider, but the 6GHz band has noticeably weaker range than 5GHz.

"There are any number of reasons that you're all well aware of about why staff would be feeling concerned about their roles, concerned about how their work is perceived externally, dealing with critical views that are expressed constantly about their work," he said.

Twitter's London headquarters at Piccadilly CIrcus, where it is understood around 1,000 members of staff are based, were deserted this evening with no employees arriving as they were left in the wondering about their futures. 

British health agencies have not been so stringent with their advice. According to the NHS, while the act is 'not completely risk-free', it poses a 'small fraction of the risk of smoking cigarettes', adding that longer term effects are not yet clear.

Firms that measure and Gadgetinku.Com track behaviour have a better record and the industry's International Council on Mining and Metals (ICMM) has played an important role in providing the data tools needed for change, delegates heard.

The watchdog launched its probe last year after then Integrity Commissioner Nikola Stepanov raised concerns about the laptop being taken from her office without her knowledge or permission by public servants.

Danielle Martin, a director at industry body ICMM, which brings together a third of the global metals and mining sector, said the rationale for greater participation of women in mining - and diversity more generally - is compelling.

Chair of Women in Mining UK Carole Cable, who started in the industry as a field assistant in Western Australia, said surging demand for metals and minerals to enable the energy transition needs a bigger workforce.

E-cigarettes are safer in that they don't burn tobacco, nor produce tar or carbon monoxide, but rather heat a liquid which contains nicotine, propylene glycol, vegetable glycerine, and various flavourings.

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