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 房产中介网上贩卖300多小区住户信息 每条一角钱.
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.
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4. 马克·特纳四重奏(Mark Turner Quartet)，《天堂里的车床》(Lathe of Heaven)， ECM。这是次中音萨克斯手马克·特纳13年来第一次以领队身份推出专辑，他喜欢同小号手阿维沙伊·科恩(Avishai Cohen)奏出流畅的互动，在后波普规范中发现全新意义。他的作曲中有纯粹的神秘，由乔伊·马丁(Joe Martin)担任贝斯手，马库斯·基尔默(Marcus Gilmore)担任鼓手的节奏组亦是一丝不苟。
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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 study is available online.