HTTP/1.1 200 OK Cache-Control: no-cache, private Content-Type: text/html; charset=UTF-8 Date: Tue, 01 Dec 2020 05:02:22 GMT 争夺六年的爱是完美告白

Researchers uncover earliest tobacco use in the Pacific Northwest

UC Davis researchers uncover earliest tobacco use in the Pacific Northwest
The earliest known usage of tobacco in the Pacific Northwest was smoked using a pipe similar to this one, according to Shannon Tushingham, a UC Davis archaeology research associate. Credit: Shannon Tushingham

(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 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 .

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 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 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.

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Hope you enjoy the happiness of New Year and all the trimmings.祝你享尽新年佳节的快乐和新年的礼品。
时间:2009-11-11 编辑:vicki
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万分沮丧之下,他发明了可以允许自拍的东西:他称之为"伸缩杆"。因为智能手机还没发明出来,所以,连接在自拍杆末端的是一个微型相机。在杆的前端有一面小镜子,方便使用者调整他们在相机里的姿态。他在1983年为"伸缩杆"申请了专利。虽然自拍杆进行了大量生产出售,却属商业败笔——相片的质量比较差。另外,以前的研究表明,那时的女士会因自己有自拍的想法而感到尴尬。在2000年,自拍杆被韦恩·弗洛姆(Wayne Fromm)重新发明,那时,上田宏的"伸缩杆"专利期尚有三年。弗洛姆称他的自拍杆为"快捷豆荚"。他认为他才是当今自拍杆的发明者,甚至起诉其他自拍杆生产者。当被问到上田宏的自拍杆时,弗洛姆评论说它们是"先前的艺术"。

Prior to this recent testing, which used sensitive gas chromatography/mass spectrometry, researchers were unsure of the historical use of tobacco on the 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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该报道表示:“乐天将伤害中国人民,后果可能是严重的。”该报道发表之后,中国政府对乐天在中国的商业集团开展了多起调查。
但是人造胰腺能够自动释放胰岛素到你的身体里。这个装置看起来像一个规律的胰岛素泵,它可以穿透皮肤连续地释放胰岛素进入身体。而且它一直监视血液里的血糖含量,并根据血糖含量调整胰岛素释放量。所以,即使携带该设备的人睡着了,也不会有血糖降至很低而晕倒的危险。
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我的饮食健康吗?我们所吃的食物种类很大程度上会影响我们在身体和情绪上的感觉。食用过多垃圾食品会导致偏执,使人精力降低。反之,饮食健康则会使人有更好的情绪和更高涨的劲头。
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China has long since eclipsed Russia as the world's number two power behind the US.
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这项测试的答案没有对错,只要对自己诚实即可。

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Two-thirds of this year’s deals are trading above their issue price. On average, 2017’s class of US IPOs have risen in value by about double the S&P 500, at 20 per cent, according to Renaissance Capital, which runs IPO-focused exchange traded funds.
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The study is available online.


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Citation: Researchers uncover earliest tobacco use in the Pacific Northwest (2013, March 1) retrieved 18 November 2020 from https://phys.org/news/2013-03-uncover-earliest-tobacco-pacific-northwest.html
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