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 央行调查：六成城镇储户认为目前房价难以接受.
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.
In 2013, the total number of applicants who qualified for the national service exam reached a record 1.52 million. In 2014, the total number decreased for the first time in four years to 1.41 million, the People's Daily website said.
Rounding out the top three is Chrissy Teigen, 31, who joins the list for the first time after raking in $13.5 million over the past 12 month-period.
《前第一夫人要求伊斯兰教变得宽容并支持女权》(A Former First Lady Presses On for a Tolerant, Feminist Islam)
英国剑桥大学(University of Cambridge)佳奇商学院(Judge Business School)的排名上升5个位次，至第5位。这不仅是该学院首次跻身前5名，而且还是伦敦商学院在这个榜单上首次失去英国最佳商学院这个头衔。
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.
There is a natural human tendency to idealize and whitewash days of yore, to cast them in the rosy glow of the mind’s eye.
At New Year and always, may peace and love fill your heart, beauty fill your world, and contentment and joy fill your days.新年的祝福，平日的希冀，愿你心境祥和、充满爱意，愿你的世界全是美满，愿你一切称心如意，快乐无比。
Third, McDermott provides some protection against the possibility of Andre Roberson departing as a free agent in the summer.
Low inflation reflects weakening demand and doesn't inspire confidence about the economic shift from manufacturing to consumption, yet at the same time it should allow Beijing to enact stimulus should it seek to support the economy further .
Of the other teams, Germany have a fantastic team, with some great options all over the pitch. The Italians can never be discounted at tournaments, whilst Portugal, with Ronaldo in the team will be dangerous, and Belgium, with such an array of talent will be amongst everyone's list of dark horses.
The commerce ministry data showing plummeting real estate investment follows an overall 53 per cent rise last year to a record $33bn, according to separate data from JLL, a global realtor.
Jeanie Buss's decision to finally dump Jim Buss—a man with none of the skills required to be a quality executive and years of floundering moves to his name—makes the Lakers clear winners all by itself.
这是伦敦商学院(London Business School)和哥伦比亚商学院(Columbia Business School)合办的EMBA-Global项目首次跌出前5名。
The study is available online.