Researchers uncover earliest tobacco use in the Pacific Northwest
(Phys.org)—Native American hunter-gatherers living more than a thousand years ago in what is now northwestern California ate salmon, acorns and other foods, and now we know they also smoked tobacco—the earliest known usage in the Pacific Northwest, according to a new University of California, Davis, study.
"The study demonstrates that tobacco smoking was part of the northwestern California culture very early ... shortly after the earliest documented Pacific Northwest Coast plank house villages," said the study, published in the 杭州白领放弃购房：爸妈存的几十万 不够蒸发的.
Testing organic residues extracted from pipes, researchers from the UC Davis Department of Anthropology and the Fiehn Metabolomics Laboratory of the UC Davis Genome Center confirmed tobacco was smoked, and likely grown in the region, by at least A.D. 860.
Perhaps more importantly, the researchers say that additional studies may help them better understand the origins of nicotine addiction and the human management, geographic range extension and cultivation of tobacco. Indeed, as part of a second study, the authors have recently detected nicotine in ancient pipes from an 800-year-old site in the modern city of Pleasanton, Calif.
"This year is a key period for Tibet's war against poverty. We will continue mapping out policies and plans in accordance with varying situations and causes of poverty and increasing funds," said Lu.
Next year, more tech workers will speak out, following former Facebook employees Sean Parker and Chamath Palihapitiya, who have condemned social media’s addictive properties.
The company realised that "it was all a mistake and that he did it without thinking," a Google spokeswoman said last Wednesday.
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Prior to this recent testing, which used sensitive gas chromatography/mass spectrometry, researchers were unsure of the historical use of tobacco on the Pacific Northwest Coast. It was unclear, for example, whether European traders had brought tobacco to the area much later, or if some other plant had been smoked in the pipes, Tushingham said.
Only the US-based MIT Sloan School of Management, in fifth place, prevented French institutions from sweeping the top five positions.
The discovery has caused huge excitement among historians, as it provides firm evidence about a monarch whose life has been shrouded in controversy since his death at the Battle of Bosworth in 1485.
I'm going to disagree on one team you mentioned: the Kings. The West is a bit shallow again, and Sacramento is in the mix for a playoff spot. It's not likely or anything, but so long as they are in the mix, they have to pull out almost all the stops to grab it.
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Still, there are bulls in the market.
But that hasn't stopped scientists from growing actual human brains in a lab. Starting with nothing but stem cells, scientists in Austria this year managed to create brains equivalent to those in nine-week-old fetuses. These miniature brains are the size of peas and are incapable of thought—so far. The one thing keeping the brains from growing beyond this stage and becoming fully functional is that they have no blood supply.
The 2015 FT Global Executive MBA ranking this year is remarkable for two reasons. Not only is it the FT’s 100th ranking of business schools, but it also marks the first time thataprogramme that includes a mainland Chinese business school has occupied the top position.
Best chances: Best film and best director. Surprisingly, Nolan has never received a directing nomination from the Academy.
Gunal Youssouf, 23, is a Teach Firster who has joined the UK arm of PwC’s management consultancy graduate scheme. She says the two-year program-me gave her a chance to taste teaching without the cost of studying for a traditional qualification.
However, 2016 saw the rise of Chinese mobile phone-makers. Huawei shipments grew 30.2 percent year on year to 139.3 million units, and the company retained its No. 3 position globally.
The study is available online.