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 市场监管总局：重点打击房产租售等领域侵害消费者个人信息违法行为.
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.
Do not forget why you're attending these conferences, who you're doing this for -- we are your own children. You are deciding what kind of world we will grow up in. Parents should be able to comfort their children by saying "everyting's going to be alright" , "we're doing the best we can" and "it's not the end of the world". 不要忘记你们为何而来到这里开会，你们为谁做事情？我们是你们的下一代，你们正在决定我们将要在一个什么样的环境中成长，父母需要能够宽慰孩子们，告诉他们“一切都没问题，那不是世界末日，我们正在尽其所能的改变”。
The most popular variation of this line is “Don’t fantasize about big sister: I am only legend.”
After Peking University, known as Bei Da, and Tsinghua University, the next highest-placed Chinese university is the University of Science and Technology of China at 15, Fudan University at 16, Shanghai Jiao Tong University at 18 and Zhejiang University at 19 in the top 20.
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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.
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The US and UK’s losses will be Germany, Sweden and Canada’s gain, as founders set up in the cosmopolitan hubs of Berlin, Stockholm and To
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The other tweet was published on Inauguration Day, and Obama said, "It's been the honor of my life to serve you. You made me a better leader and a better man."
Slow growth around the world won't hurt the U.S. all that much. American exports might flatten out or even dip, but that would be offset by lower imports of petroleum because of sinking oil prices. So the trade deficit is unlikely to get further out of whack.
《傲骨贤妻》(The Good Wife)：艾丽西娅(Alicia)的秘密暧昧对象威尔（Will，乔希·查尔斯[Josh Charles]饰）在第五季末死去，CBS频道的这部性感法庭剧似乎要完蛋了，但是第六季却似乎充满了疯狂的能量——艾丽西娅初露头角的政治竞选、新旧公司的权力之争、合伙人卡里(Cary)的棘手法律事务。艾丽西娅不再那么完美，《傲骨贤妻》因此更好看了。
The study is available online.