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 未来大预测：家具零售商或成家具行业大赢家.
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.
Yes, you want to know how to do most of your job. But there are also things you want to be learning; otherwise you are not growing professionally. If you have stopped learning at work, it's time to find a job where you will learn new skills and grow professionally.
A new paper on the Dutch debacle, coauthored by Peter Koudijs at Stanford Graduate School of Business, turns up modern-day lessons about the not-so-scientific ways in which personal experience rather than market information can determine optimism, pessimism, and access to credit.
n. 宣言，声明 vi. 发表宣言
New Year time is here. I hope you have a wonderful New Year. May every day hold happy hours for you.新年来临，祝新年快乐，愿你时时刻刻幸福欢乐！
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.
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We took further steps to implement the Internet Plus action plan and the national big data strategy.
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May the beauty and joy of New Year remain with you throughout the new year!
根据花旗居屋(Citi Habitats)提供的数据，在布鲁克林拟于明年投放市场的6527套新出租屋中，有1442套分布在贝德福德-斯图文森(Bedford-Stuyvesant)、布什维克(Bushwick)和克林顿山(Clinton Hill)。就在不久前，这些社区都还被视为不热门的地区。
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The study is available online.