DNA from 4,500-year-old Ethiopian reveals surprise about ancestry of Africans

Posted in Africa, Articles, Health/Medicine/Genetics, History, Media Archive on 2015-10-11 02:14Z by Steven

DNA from 4,500-year-old Ethiopian reveals surprise about ancestry of Africans

The Los Angeles Times
2015-10-08

Karen Kaplan, Science & Medicine Editor

DNA from a man who lived in Ethiopia about 4,500 years ago is prompting scientists to rethink the history of human migration in Africa.

Until now, the conventional wisdom had been that the first groups of modern humans left Africa roughly 70,000 years ago, stopping in the Middle East en route to Europe, Asia and beyond. Then about 3,000 years ago, a group of farmers from the Middle East and present-day Turkey came back to the Horn of Africa (probably bringing crops like wheat, barley and lentils with them).

Population geneticists pieced this story together by comparing the DNA of distinct groups of people alive today. Since humans emerged in Africa, DNA from an ancient Africa could provide a valuable genetic baseline that would make it easier for scientists to track genome changes over time…

Read the entire article here.

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I belong everywhere and nowhere.

Posted in Excerpts/Quotes on 2015-10-11 02:07Z by Steven

Like many TCKs [third culture kids] and persons of mixed ancestry, I have searched all my life for “home”. In late 2012 I relocated to the Los Angeles area after more than two decades in the San Francisco Bay Area and New York City. L.A.’s a good place for in-between-ers like me. In this sprawling metropolis with no center, a place that’s in a perpetual state of fragmentation, disintegration, and transformation and whose population represents every culture and nation, I can enjoy a sense of internal and external spaciousness. But it’s a restless city and its vast size lends itself to tribalism. As a relative newcomer, it’s been challenging to find a place of belonging. But then I’m reminded that, as an adult TCK who’s moved over 40 times since my birth, I’ve always felt this way, no matter where I’ve lived. I belong everywhere and nowhere.

Mari L’Esperance, “Liminality as Inheritance: On Being Mixed and Third Culture,” Mixed Roots Stories, October 7, 2015. http://mixedrootsstories.com/liminality-as-inheritance-on-being-mixed-and-third-culture/.

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Groundbreaking New Series – ‘Mister Brau’ – Gives Afro-Brazilians Representations to Cheer Despite Flaws

Posted in Articles, Book/Video Reviews, Brazil, Caribbean/Latin America, Social Science on 2015-10-11 01:54Z by Steven

Groundbreaking New Series – ‘Mister Brau’ – Gives Afro-Brazilians Representations to Cheer Despite Flaws

Shadow and Act: On Cinema Of The African Diaspora
2015-10-07

Kiratiana Freelon


Lázaro Ramos and Taís Araújo

Brazilian television is very white, but most Brazilians aren’t.

Brazil’s population is more than 50 percent black, but the television news and entertainment shows rarely reflect such diversity. So when a “black” television show debuts, it’s groundbreaking. And when Brazil’s top black female and male actors star in it, it’s a miracle.

Two weeks ago Globo television premiered “Mister Brau,” a weekly comedic show starring Lázaro Ramos and Taís Araújo as a successful pop music couple. They are also married in real life…

…For black Americans, the union between Ramos and Araújo appears to be a perfect match. For Afro-Brazilians, it’s a match that they rarely see. For the most part, rich and successful Afro-Brazilians do not marry black people. Soccer stars marry white women. Black Brazilian models marry white men. Militant black Brazilians always debate the reasons for this. But sociologists have concluded that rich Afro-Brazilians are usually exchanging status when they marry white. They provide the high socioeconomic status in exchange for whiteness, which has a high racial status in Brazil. (See: Race in another America: the significance of skin color in Brazil)…

Read the entire review here.

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No, Native Americans aren’t genetically more susceptible to alcoholism

Posted in Articles, Health/Medicine/Genetics, History, Media Archive, Native Americans/First Nation, Social Work, United States on 2015-10-11 01:04Z by Steven

No, Native Americans aren’t genetically more susceptible to alcoholism

The Verge
2015-10-02

Maia Szalavitz

Time to retire the ‘firewater‘ fairytale

When Jessica Elm, a citizen of the Oneida Tribe of Indians of Wisconsin, was studying for her master’s degree in social work, she frequently heard about how genes were responsible for the high risk of alcoholism among American Indians. But her own family’s experience — and the research, she discovered — tells a very different story.

The “firewater” fairytale that Elm came to know all too well goes like this: Europeans introduced Native Americans to alcohol, which they were genetically unprepared to handle. That happenstance led to alcoholism rates that are around twice as high as those seen in whites — and alcohol-related death rates, which are at least tripled. In this view, colonization didn’t make conquered people susceptible to heavy drinking — genes did…

…In fact, there’s no evidence that Native Americans are more biologically susceptible to substance use disorders than any other group, says Joseph Gone, associate professor of psychology at the University of Michigan. American Indians don’t metabolize or react to alcohol differently than whites do, and they don’t have higher prevalence of any known risk genes…

Read the entire article here.

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