Wednesday, January 29, 2014
Tuesday, January 28, 2014
What humans may have looked like 7,000 years ago: Hunter-gatherer roots, Paleo diet and some possible traces of African genes
A 7,000-year-old man from the Mesolithic Period had blue eyes and dark skin. (Pelopanton/CSIC)
Hunter-gatherer roots, Paleo diet and some possible traces of African genes
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Dark skin. Blue eyes. Beard. Thin and borderline lactose-intolerant.
That's what scientists say man may have looked like 7,000 years ago, after studying DNA from bones discovered in a Spanish cave. The Mesolithic skeleton found at the La Brana-Arintero site in Leon in 2006 is thought to be the first recovered genome of a European from that period.According to a study published on Sunday in the journal Nature, pigmentation genes extracted from a tooth of the man — dubbed La Brana 1 — reveal he had dark skin like an African-American but the blue eyes of a Scandanavian, "suggesting the light skin of modern Europeans was not yet ubiquitous in Mesolithic times."
"The biggest surprise was to discover that this individual possessed African versions in the genes that determine the light pigmentation of the current Europeans," Carles Lalueza-Fox, a researcher from the Spanish National Research Council, said in a press release accompanying the findings.
While the man had dark skin, Lalueza-Fox said, "we cannot know the exact shade."
La Brana 1 was a hunter-gatherer subsisting on a low-starch diet and had trouble digesting milk.
"The arrival of the Neolithic, with a carbohydrate-based diet and new pathogens transmitted by domesticated animals, entailed metabolic and immunological challenges that were reflected in genetic adaptations of post-Mesolithic populations," the study noted. "Among these is the ability to digest lactose, which La Brana individual could not do."
But the 7,000-year-old also had an advanced immune system normally associated with modern Europeans, the study found.
The researchers added that more genome analysis is necessary from the Mesolithic Period to determine whether La Brana 1's looks were common. The group is preparing to study the remains of "La Brana 2," another male found in the same cave.
Monday, January 27, 2014
Thursday, January 23, 2014
Guardian and CBC of Canada blocked in China after story about leadership's offshore wealth
Access to the front page of newspaper's website blocked and availability of other stories intermittent. And Google search doesn't allow to go directly to the those media websites.
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The Guardian appeared to be partially blocked in China on Wednesday after revealing that relatives of the country's top political and military leaders are making use of offshore companies in the Caribbean.
The report, based on leaked financial documents, showed that the brother-in-law of president Xi Jinping and son and son-in-law of former premier Wen Jiabao were among more than a dozen family members of current or former leaders using the offshore havens.
Repeated attempts to access the story from China failed without a virtual private network (VPN). Some attempts to reach The Guardian’s front page failed and access to other, unrelated stories was intermittent.
Earlier this month, The Guardian was briefly partially blocked before becoming accessible again.
The report that more than 21,000 clients from China and Hong Kong have made use of the Caribbean offshore havens is the latest revelation in a two-year initiative by the International Consortium of Investigative Journalists, which has shared leaked data from two companies in the British Virgin Islands with the Guardian and other international news organisations.
The website of the ICIJ could not be reached and the website of the Spanish newspaper El Pais, another of the media partners, also appeared to be inaccessible.
Australia’s Global Mail could be accessed, but not its story about the wealth. Reports on the holdings could be read in full on the websites of France’s Le Monde, Germany’s Suddeutsche Zeitung and Canada’s CBC News.
The wealth of Chinese officials and their families has become a subject of growing interest, particularly in light of Xi’s campaign for austerity and against corruption since becoming leader.
Chinese activists whose campaigns have included a push for financial transparency – holding street protests calling on officials to declare their assets – have faced a punishing crackdown. Xu Zhiyong, the best-known member of the New Citizens Movement, is standing trial in Beijing on Wednesday while other members of the movement will be tried on Thursday and Friday.
The websites of Bloomberg and the New York Times have been blocked in China since they reported on the onshore assets of relatives of leaders – including those of Xi and Wen – in 2012. They have also been unable to obtain visas for new reporters.
Austin Ramzy, who has worked on the mainland for several years and sought to transfer to the New York Times from another publication, will have to leave when his current visa runs out at the end of the month unless the authorities change course.
The report, based on leaked financial documents, showed that the brother-in-law of president Xi Jinping and son and son-in-law of former premier Wen Jiabao were among more than a dozen family members of current or former leaders using the offshore havens.
Repeated attempts to access the story from China failed without a virtual private network (VPN). Some attempts to reach The Guardian’s front page failed and access to other, unrelated stories was intermittent.
Earlier this month, The Guardian was briefly partially blocked before becoming accessible again.
The report that more than 21,000 clients from China and Hong Kong have made use of the Caribbean offshore havens is the latest revelation in a two-year initiative by the International Consortium of Investigative Journalists, which has shared leaked data from two companies in the British Virgin Islands with the Guardian and other international news organisations.
The website of the ICIJ could not be reached and the website of the Spanish newspaper El Pais, another of the media partners, also appeared to be inaccessible.
Australia’s Global Mail could be accessed, but not its story about the wealth. Reports on the holdings could be read in full on the websites of France’s Le Monde, Germany’s Suddeutsche Zeitung and Canada’s CBC News.
The wealth of Chinese officials and their families has become a subject of growing interest, particularly in light of Xi’s campaign for austerity and against corruption since becoming leader.
Chinese activists whose campaigns have included a push for financial transparency – holding street protests calling on officials to declare their assets – have faced a punishing crackdown. Xu Zhiyong, the best-known member of the New Citizens Movement, is standing trial in Beijing on Wednesday while other members of the movement will be tried on Thursday and Friday.
The websites of Bloomberg and the New York Times have been blocked in China since they reported on the onshore assets of relatives of leaders – including those of Xi and Wen – in 2012. They have also been unable to obtain visas for new reporters.
Austin Ramzy, who has worked on the mainland for several years and sought to transfer to the New York Times from another publication, will have to leave when his current visa runs out at the end of the month unless the authorities change course.
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More on this story
China blocks foreign news sites which revealed elite's offshore holdings
Guardian and International Consortium of Investigative Journalists among sites blocked as China Digital Times publishes details of directive
Chinese oil giants make use of offshore shell companies in Caribbean
China's elite using offshore haven
Offshore secrets: British Virgin Islands
China's cash haven – the key points
China's elite: don't shoot the messenger
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