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 速度与激情已过 美乐乐连失左膀右臂.
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.
200911/88512.shtmlA 1936 Nobel Peace Prize discovered at a South American pawn shop has been sold at auction in Baltimore for $1.16 million.
My bet is those forces — and America’s CEOs — will continue to temper the president’s trade tantrums in the short term. But there are lots of people baying for Chinese trade blood in Washington these days.
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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.
在2017年FT对全球95个管理学硕士项目的排行中，虽然瑞士圣加仑大学(University of St Gallen)继续蝉联冠军，但法国和英国商学院分别以24个和18个项目入围成为中坚力量。超过一半的英国商学院排名上升，而只有一家法国商学院排名上升。三分之一的英国商学院排名上升5位，相比之下，三分之二的法国商学院排名下降5位或更多。
Guangzhou, Shenzhen, Hangzhou, Wuhan and Nanjing have been ranked as the top five cities for opportunity in China, according to a report jointly launched by PricewaterhouseCoopers and the China Development Research Foundation.
I know many of you met your former spouse at the company. But the thing is, for every one of you, there are five people it doesn't work out as well for. And your office romance can and will be held against you.
Length of program: 24 months
9) Well Done: It’s a cliché, no doubt. Sometimes, it isn’t enough just to say thanks. People want to know what they did was great and why. They pour so much sweat and soul into their projects.They need to know their work was special and had meaning to someone.
Despite the promise of downloadable courses, teaching for officially recognised qualifications continues to be a classroom-based activity undertaken in the real world. Start-ups have taken the attitude that if they cannot beat the universities and colleges at their own game with new methods of delivery, they should join them in partnerships. As a result, they have been busy getting examining boards to endorse their online courses so that they can count towards a bachelor’s or master’s qualification.
52% of the world lived in extreme poverty in 1981. This number dropped down by 21% in 2010, as 721 million fewer people no longer live in absolute poverty.
Going into the debate at Lynn University in Boca Raton, Florida, Obama had an inbuilt advantage on foreign policy and security. As president, with access to daily briefings by intelligence analysts, diplomats and generals, he is better briefed and it showed as he dominated Romney in the first half of the debate.
10. “Sixty Six” Lewis Klahr’s beautiful compilation of digital short works, which refashion pop culture in a heroic key, played for only one night at the Museum of Modern Art. But his work shows up in cities like Los Angeles and San Francisco, too, so if you’re in the neighborhood, look for his next show.
The potential for conflict will force China and the US to redefine their roles in a shifting environment that neither is comfortable with. Tensions will be aggravated by anti-China sentiment during the American elections. Asian countries are in a position to delineate the boundaries of influence for these two powers but, given their varied interests, alliances will shift depending on individual concerns.
但是，那些宣称不大可能会消失。阿拉巴马州大学亨茨维尔校区的大气科学家约翰·R·克里斯蒂(John R. Christy)以怀疑全球变暖的严重性而知名，他在一次采访中指出，2014年的记录只比以前年度的创纪录温度高出百分之几度，完全是在全球温度测量值的误差范围之内。克里斯蒂说，“自20世纪末，气温并没有太多变化，一直处于较暖的稳定水平。”
Create a space that helps you make the most of your study time. Do you need absolute quiet or do you prefer to have loud music playing? Do you like working at the kitchen table in the midst of everything or do you a quiet room with the door shut? Know your own style and create the space you need.
The study is available online.