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 全域旅游规划需尽早纳入“多规合一”顶层设计.
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.
If you plan to visit Brazil for the Olympic games, and to focus on sport and having fun, Google has you covered. In anticipation of the 2016 Rio Olympics, the search giant is bringing the 'Explore' feature to Brazil Maps.
Average age: 33 in Philadelphia, 36 in San Francisco
es to you and yours.以我所有的爱心与真诚祝你及全家圣诞快乐。
6.Put people first
China's actual use of foreign capital during the 2010-2015 period is expected to reach 620 billion USdollars with the tertiary sector taking over 60 percent of total foreign capital. Outbound direct investment grew at 14.2 percent annually.
Another slowdown in food prices pulled Chinese inflation lower in October, according to the National Bureau of Statistics.
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.
1. Discipline them: Of course disciplining our children is a given in any home. But we need to ask ourselves if we are disciplining our children properly? Who
Han emphasized that the risk of infection still remains because college students, who are sexually active, might have unprotected sex because they are susceptible to external influences.
One year after new measures were implemented, Shanghai saw a year-on-year increase of six times the number of permanent residence applications from foreigners and their families.
The 23-year-old country music darling was awarded the honour by DoSomething.org, which released its list of Top 20 Celebs Gone Good of 2012 this week. According to the organisation, Taylor topped the list after donated $4million to the Country Hall of Fame museum.
They're the top three most unaffordable housing markets in the world, according to the 13th Annual Demographia International Housing Affordability Survey: 2017, published recently.
当晚的最高价来自唯一的一位欧洲电话出价人。此人以910万英镑购得约翰·康斯特布尔(John Constable)令人钦佩但很难让人喜爱的1824年纵向风景画《水闸》(The Lock)的1825年缩小版，这幅画从1855年起一直由一个英国家族私藏。
Hope you enjoy the happiness of New Year and all the trimmings.祝你享尽新年佳节的快乐和新年的礼品。
6. Cancer Mortality Rate
Mayweather Jnr - who is capable of demanding pound 70 million a fight - fell to 16th. He pocketed pound 20 million in ring fees with an additional pound 5 million coming mostly from his clothing brand TMT, The Money Team.
Global smartphone shipments reached 1.47 billion units in 2016, up by 2.3 percent from last year, said IDC.
According to the financial data provider Wind Information Co Ltd, listed companies in China's A-share market earned 2.47 trillion yuan in profits last year. Of those listed companies, 2000 plan to pay out 700 billion yuan to their shareholders.
The study is available online.