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 智能家居前景如何 是金山还是泡沫.
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.
6. 米兰达·兰伯特(Miranda Lambert)，《白金》(Platinum)，RCA Nashville。兰伯特很快从坚强的新贵蜕变为光芒四射的乡村乐贵族，这张《白金》是她最好的专辑，她带着轻松的权威之感逾越了界限。专辑中伤感与世俗的情绪交替出现，修饰和粗粝的比例恰到好处，这张专辑让人们明白她有着强大的力量，向任何低估她实力的人发出挑战。
Its brand value has increased by 22 per cent to $19bn and it has climbed 20 places up the ranking to number 50.
9. Putting Yourself in Someone Else's Shoes Improves Memory
5、Poor e-mail communication
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.
The US president-elect has pledged to abandon trade agreements which could have wide-reaching effects on American imports and exports of commodities if trade agreements are revised.
The 1.48 million people who qualified to take the exam marked an increase of 90,000 over last year, while the number of positions offered - 27,000 - remained almost the same.
Written instructions apparently issued by China’s tourism administration, shown to the FT by one Beijing travel agent, order agencies to cancel group tours to South Korea booked for after March 15 and add that companies not in compliance could be fined or have their licences revoked. The tourism administration was not immediately available for comment.
A 19-year-old girl, referred to as Guo Lingling (this may be a pseudonym), was allegedly struck and kicked repeatedly by her so-called instructors after failing to ask permission to go to the bathroom. An autopsy report showed she died from skull injuries and brain damage.
以100亿港元（合12.9亿美元）购入大新金融中心(Dah Sing Financial Centre)的中国光大控股(China Everbright)，只是过去一年里在香港大举购置总部大楼的众多内地企业之一。
本文作者为卡内基国际和平基金会(Carnegie Endowment)高级研究员、世界银行(World Bank)中国业务局前局长，译者/何黎
Meanwhile, La Rochelle Business School dropped 12 places to 60 having been last year’s highest climber.
4. Will China's one-child policy change in 2010?
James Bond Themes 1. "Goldfinger" by Shirley Bassey
The online novel Once Upon A Time by Tang Qi was published in 2009. This year saw a series of adaptations of the novel, including a TV series, a film, a drama and a computer game.
We will develop cultural programs and industries.
The study is available online.