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 广东294家陶企纳入首批温室气体排放重点报告企业.
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.
After decades of promise, new gene therapies are starting to deliver real results. Like all new therapies, communicating accurately how and where it works will prove as challenging as the treatment itself.
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.
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.
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.
The local court gave Zhou a lenient sentence due to the teenager's age and frank confession of the crime, according to the report.
Employment is crucial to ensuring people’s well-being. We will focus our efforts on facilitating employment to see that through their hard work, people can create wealth and realize their full potential.
The killer combo of Judi Dench and Stephen Frears team up again, four years on from Philomena, with a Lee Hall-scripted look at the friendship between Queen Vic and a young Indian clerk. Eddie Izzard looks like inspired casting as Bertie, the Prince of Wales; filling out the rest of the cast are Olivia Williams, Tim Pigott-Smith and, once again, Simon Callow and Michael Gambon.
Epic is not OK with ongoing cheating or copyright infringement from anyone at any age, it said.
The Dutch case involved sophisticated financial professionals, people accustomed to analyzing financial and economic trends. Yet, they too focused on their personal experience.
I give you endless brand-new good wishes. Please accept them as a new remembrance of our lasting friendship.
Yao has been at the center of a hostile takeover battle for China's largest real estate developer China Vanke Co Ltd (000002.SZ).
The French president would have ranked much higher had he not taken a 30% pay cut on assuming office in 2012.
But when you think of fields where there just aren't enough skilled candidates to go around, one that probably doesn't come to mind is supply chain management: The complicated, behind-the-scenes work of getting goods from one place to another, on time and on budget.
考夫曼和同事加雷思?哈里斯(Gareth Harris)发现，居住在那些人种快速多样化地域的英国白人更倾向于投给右翼的英国国家党(British National Party)。宾夕法尼亚大学政治学教授丹尼尔?霍普金斯(Daniel Hopkins)在美国发现了相似的民族变化导致反移民政策的规律。
Trade flows brought China’s balance of trade to $40.82bn, roughly $7.2bn below expectations and down about $3.6bn from November’s revised level of $44.23bn (previously $44.61bn). That balance came to Rmb275.4bn in local-currency terms.
The study is available online.