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 传统家居建材市场萎缩：向智能化转型或是行业必经之路.
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.
Extreme heat blanketed Alaska and much of the western United States last year. Records were set across large areas of every inhabited continent. And the ocean surface was unusually warm virtually everywhere except near Antarctica, the scientists said, providing the energy that fueled damaging Pacific storms.
6. You dressed 10 times nicer than usual yesterday。
Change is also under way at Bain & Company, which announced in November that Manny Maceda will become its global leader in March, the first of Asian heritage, and taking the reins of the Boston-based consultancy from Bob Bechek. Experts say Mr Maceda could be instrumental in helping the firm carve out new areas of expertise and edge away from its reputation as a generalist provider.
各大资产管理公司的专家们表示，评估亚洲ETF潜力的难题在于日本市场在地区所占比重过大，以及日本央行(Bank of Japan)扮演的角色过大。日本央行每年购买6万亿日元（合540亿美元）的ETF，这扭曲了市场。
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.
The average price for new residential buildings rose 12.3 per cent in October year on year, according to a weighted average from Reuters based on data from the National Bureau of Statistics.
Politics also color perceptions of the weather, the survey found. More than three-quarters of Democrats and six in 10 independents believe that the weather has become more extreme over the last few years, while less than half of Republicans say they have perceived such a shift.
3. Do I take time out of my day purely for myself? We all need a little “me time.” Set aside some time every day to just relax and do something that you enjoy, whether that is reading, meditating, watching TV, cooking, spending quality time with your loved ones, etc.
Wal-Mart U.S. president and CEO Bill Simon
德银资产管理公司(Deutsche AM)亚太区被动型资产管理部门主管马尔科?蒙塔纳里(Marco Montanari)也认为，在亚洲ETF市场迈向更高台阶之前，必须从根本上改革分销制度。
12) I often find myself worrying about something 0 1 2 3 4
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.
Cambridge Judge Business School also ends the year on a high, appearing for the first time in the rankings for both open and custom executive education, and climbing three places in the MBA ranking and 12 places in the Executive MBA table.
The study is available online.