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 家居行业传言牵动消费神经 业内回应逐一破解.
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.
Brain death is a bit of an inconvenience if you're a fan of living, and if you're looking to replace yours with a spare, you're out of luck. Sure, maybe we'll one day be able to plant brains into skulls, but the brain's not just another organ. It contains all your thoughts and memories. They can plop a new brain in your head, but you'll still be gone, so the idea of making artificial brains may seem absurd.
In 2007, Apple released the first iPhone: a full touchscreen phone, complete with its own virtual keypad. To many, Apple had done something new, something never seen before. They had made the first touchscreen phone. But this was incorrect: Apple did not make the first touchscreen phone, nor was the touchscreen a new invention.
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.
Others who made the top ten include Amazon's Jeff Bezos at fifth on the list, Mark Zuckerberg of Facebook at sixth, Oracle's Larry Ellison at seventh, Michael Bloomberg at eighth, and tied for ninth are David and Charles Koch.
Siemens broke records last year by winning two awards for renaming its healthcare business Healthineers. Not only does it land the Martin Lukes prize for the worst combination of two words, the accompanying video, featuring a singing CEO and writhing spandex-clad employees, wins a gold medal for most embarrassing company song of all time.
High and rising US rates may quickly become drivers of EM crises: such conditions may lead to higher borrowing costs in EMs, along with capital outflows and an unwillingness by the financial sector to take risks.
In contrast to Hunter’s, her Piano co-star Anna Paquin’s Oscar seems to have no fixed abode, flitting between her sock drawer and on the floor next to her boots.
The big winners over the past year in Arizona were the construction and leisure/hospitality industries, which both added more than 10, 000 jobs. Other fast-growing sectors include business services, financial activities and education and health services.
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"Compared with previous years, this year's two sessions are due to see the new leadership elected, and reforms of organizations will be discussed. They will also elaborate on detailed plans for implementing policies proposed by the 18th National Congress of the Communist Party of China."
But researchers this year came up with a new method that makes flexible, realistic ears out of real cells. Those cells come from rats and cows, and they form a collagen gel that can take the shape of any mold. When placed in a mold of a human ear—a mold assembled using a 3-D printer—the gel forms an ear in less than an hour. The artificial ear then just needs a few days growing in nutrients before it's ready to be implanted in a subject.
May the bright and festive glow of New Year candle warm the days all the year through. Hoping you will have a wonderful time enjoying New Year that is happy in every way.愿明亮喜庆的新年烛光温暖一年中的每个日日夜夜，祝你欢欢喜喜度新年！
The study is available online.