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 全球卷材涂料市场预计迎来持续增长.
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.
The banking industry has been experiencing a low profit growth period and will be for a long time, the National Business Daily reported, citing an expert. He said the banks' yearly profits growth reached 35 to 40 per cent in the past dozen years, but now the growth had slowed to less than 1 per cent, with some banks even recording a loss.
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.
自该学校的国际管理学硕士(International Master in Management)项目首次被纳入榜单以来，该学校的排名在过去两年上升31个位置。
Exports fell 6.6 per cent year-on-year in January to Rmb1.14tn, following a 2.3 per cent gain in December. Economists expected a gain of 3.6 per cent. It was the biggest fall in exports since an 8.9 per cent drop in July last year.
You turn back the passage and want to find the Page 12, and then you smile.
1. China’s leadershipwill ignite the capital economy, funding an aggressive growth program withmajor infrastructure investments to support urban development, including hugeallotments for housing, schools, roads, and more.
By investing deep in the industrial fabric of the country, from the coastal cities of Tianjin and Shanghai to the new industrial frontiers of the Western provinces of Shaanxi and Sichuan, from the processing of rare metals to the manufacturing and assembly of complex aircraft parts, China is adding substance to formand showing the world that, as far as its commercial aerospace achievements are concerned, the best is yet to come.
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在本届达沃斯世界经济论坛(World Economic Forum)盛大闭幕会议上，与会者承认风险的存在，认为缺乏有效管理的新兴市场很容易受到危机冲击，但他们最终得出的结论是，前景是多年来最为光明的。
What’s more, a Fiat engine not only places among Wards’ top 10 for the first time, it’s for an electric motor, the 83-kW unit found under the hood of the diminutive 500e. Unfortunately the car is only sold in California, though market forces might convince the automaker to send it into wider distribution should gas prices gain spike up to the $4.00/gallon mark or above.
?Women fall for him because he's exciting to be around and this plays a much larger part in a relationship than most think. It's the key to a great first date. Even the femme fatales assigned to kill Bond fall for him. But studies show this isn't surprising at all. 007's character has frequently been accused of being sexist. This is probably true -- and only serves to make him that much more attractive to the ladies.
The recovery may help allay some of the gloom around emerging market countries, many of which used strong export growth as a springboard for rapid economic advancement in the early years of this century, before the export boom turned to bust.
Still, the clock is ticking and President Trump is doing his best to add dramatic tension by threatening a withdrawal.
It will be a year when the automaker begins selling its first airplane, the HA-420 Hondajet for general aviation, as well as a new hydrogen fuel-cell vehicle, the FCV. Honda will return to the Formula One circuit with a new race car. The cherry on top may be Acura NSX, a gas-electric hybrid supercar that will be built and sold in low volume.
Obama won the second to put himself back in the race. Although he also won the third, foreign policy is not a major concern for voters and it is unlikely to result in any major poll swings.
The study is available online.