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 调控力度加大防止房价明显过快上涨.
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.
Meanwhile, a salesman from online travel company Tuniu Corp told the Financial Times that it had on Friday “removed all tours to South Korea due to the Thaad issue”. A search for South Korean tours on the website returns the message: “Sorry, we have not found a relevant product.”
A Florida teen is causing strangers to freeze and stare because of her uncanny likeness to Queen Elsa from the Disney movie Frozen.
"Quality supervision authorities at all levels must intensify quality supervision and keep cracking down on law violations to improve the quality of products and protect consumers' rights," said Mei Kebao, deputy head of the administration.
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.
It will be a year when the automaker begins selling its first airplane, the HA-420 Hondajet for general aviation, as well as a new hydrogen fuel-cell vehicle, the FCV. Honda will return to the Formula One circuit with a new race car. The cherry on top may be Acura NSX, a gas-electric hybrid supercar that will be built and sold in low volume.
The computer is a very powerful machine built with ARM processors, the kind low-power processors that run smartphones and tablets. These servers allow more computing power o be packed into a smaller space. And that has big implications for building green-but-powerful data centers."I think of myself as an entrepreneur besides just being an electrical engineer. I believe what I'm doing can have a major effective on the world," Sohmers said.He dropped out of high school to join Peter Thiel's controversial startup accelerator, the 20 Under 20 Thiel Fellowship. Thiel, the former PayPal CEO and famous Silicon Valley venture capitalist known for his early investment in Facebook, is a libertarian who has often spoken out about the absurd cost of college these days.So in 2011, he started a program that encourages kids to start companies instead of going to college. It gives them $100,000 in seed money and access to some of the Valley's greatest technologists as mentors.Sohmers is an electrical engineering prodigy who at age 13 started working at the research lab at MIT. That's where he met his co-founder and CTO, Keville, he said.
1. Battle of the Sexes
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As for China, lack or stopped development represents the biggest risk for this country. So it is essential that we maintain steady medium-high growth of our economy and that in itself is China’s contribution to global stability.
When the cup is lifted and removed from the dispenser, the magnet seals the bottom and the drink is ready to be enjoyed.
We will advance reforms in the financial sector.
The study is available online.