publishedmedium:the american journal

  • Can Mark Zuckerberg Fix Facebook Before It Breaks Democracy? | The New Yorker
    https://www.newyorker.com/magazine/2018/09/17/can-mark-zuckerberg-fix-facebook-before-it-breaks-democracy

    Since 2011, Zuckerberg has lived in a century-old white clapboard Craftsman in the Crescent Park neighborhood, an enclave of giant oaks and historic homes not far from Stanford University. The house, which cost seven million dollars, affords him a sense of sanctuary. It’s set back from the road, shielded by hedges, a wall, and mature trees. Guests enter through an arched wooden gate and follow a long gravel path to a front lawn with a saltwater pool in the center. The year after Zuckerberg bought the house, he and his longtime girlfriend, Priscilla Chan, held their wedding in the back yard, which encompasses gardens, a pond, and a shaded pavilion. Since then, they have had two children, and acquired a seven-hundred-acre estate in Hawaii, a ski retreat in Montana, and a four-story town house on Liberty Hill, in San Francisco. But the family’s full-time residence is here, a ten-minute drive from Facebook’s headquarters.

    Occasionally, Zuckerberg records a Facebook video from the back yard or the dinner table, as is expected of a man who built his fortune exhorting employees to keep “pushing the world in the direction of making it a more open and transparent place.” But his appetite for personal openness is limited. Although Zuckerberg is the most famous entrepreneur of his generation, he remains elusive to everyone but a small circle of family and friends, and his efforts to protect his privacy inevitably attract attention. The local press has chronicled his feud with a developer who announced plans to build a mansion that would look into Zuckerberg’s master bedroom. After a legal fight, the developer gave up, and Zuckerberg spent forty-four million dollars to buy the houses surrounding his. Over the years, he has come to believe that he will always be the subject of criticism. “We’re not—pick your noncontroversial business—selling dog food, although I think that people who do that probably say there is controversy in that, too, but this is an inherently cultural thing,” he told me, of his business. “It’s at the intersection of technology and psychology, and it’s very personal.”

    At the same time, former Facebook executives, echoing a growing body of research, began to voice misgivings about the company’s role in exacerbating isolation, outrage, and addictive behaviors. One of the largest studies, published last year in the American Journal of Epidemiology, followed the Facebook use of more than five thousand people over three years and found that higher use correlated with self-reported declines in physical health, mental health, and life satisfaction. At an event in November, 2017, Sean Parker, Facebook’s first president, called himself a “conscientious objector” to social media, saying, “God only knows what it’s doing to our children’s brains.” A few days later, Chamath Palihapitiya, the former vice-president of user growth, told an audience at Stanford, “The short-term, dopamine-driven feedback loops that we have created are destroying how society works—no civil discourse, no coöperation, misinformation, mistruth.” Palihapitiya, a prominent Silicon Valley figure who worked at Facebook from 2007 to 2011, said, “I feel tremendous guilt. I think we all knew in the back of our minds.” Of his children, he added, “They’re not allowed to use this shit.” (Facebook replied to the remarks in a statement, noting that Palihapitiya had left six years earlier, and adding, “Facebook was a very different company back then.”)

    In March, Facebook was confronted with an even larger scandal: the Times and the British newspaper the Observer reported that a researcher had gained access to the personal information of Facebook users and sold it to Cambridge Analytica, a consultancy hired by Trump and other Republicans which advertised using “psychographic” techniques to manipulate voter behavior. In all, the personal data of eighty-seven million people had been harvested. Moreover, Facebook had known of the problem since December of 2015 but had said nothing to users or regulators. The company acknowledged the breach only after the press discovered it.

    We spoke at his home, at his office, and by phone. I also interviewed four dozen people inside and outside the company about its culture, his performance, and his decision-making. I found Zuckerberg straining, not always coherently, to grasp problems for which he was plainly unprepared. These are not technical puzzles to be cracked in the middle of the night but some of the subtlest aspects of human affairs, including the meaning of truth, the limits of free speech, and the origins of violence.

    Zuckerberg is now at the center of a full-fledged debate about the moral character of Silicon Valley and the conscience of its leaders. Leslie Berlin, a historian of technology at Stanford, told me, “For a long time, Silicon Valley enjoyed an unencumbered embrace in America. And now everyone says, Is this a trick? And the question Mark Zuckerberg is dealing with is: Should my company be the arbiter of truth and decency for two billion people? Nobody in the history of technology has dealt with that.”

    In 2002, Zuckerberg went to Harvard, where he embraced the hacker mystique, which celebrates brilliance in pursuit of disruption. “The ‘fuck you’ to those in power was very strong,” the longtime friend said. In 2004, as a sophomore, he embarked on the project whose origin story is now well known: the founding of Thefacebook.com with four fellow-students (“the” was dropped the following year); the legal battles over ownership, including a suit filed by twin brothers, Cameron and Tyler Winklevoss, accusing Zuckerberg of stealing their idea; the disclosure of embarrassing messages in which Zuckerberg mocked users for giving him so much data (“they ‘trust me.’ dumb fucks,” he wrote); his regrets about those remarks, and his efforts, in the years afterward, to convince the world that he has left that mind-set behind.

    New hires learned that a crucial measure of the company’s performance was how many people had logged in to Facebook on six of the previous seven days, a measurement known as L6/7. “You could say it’s how many people love this service so much they use it six out of seven days,” Parakilas, who left the company in 2012, said. “But, if your job is to get that number up, at some point you run out of good, purely positive ways. You start thinking about ‘Well, what are the dark patterns that I can use to get people to log back in?’ ”

    Facebook engineers became a new breed of behaviorists, tweaking levers of vanity and passion and susceptibility. The real-world effects were striking. In 2012, when Chan was in medical school, she and Zuckerberg discussed a critical shortage of organs for transplant, inspiring Zuckerberg to add a small, powerful nudge on Facebook: if people indicated that they were organ donors, it triggered a notification to friends, and, in turn, a cascade of social pressure. Researchers later found that, on the first day the feature appeared, it increased official organ-donor enrollment more than twentyfold nationwide.

    Sean Parker later described the company’s expertise as “exploiting a vulnerability in human psychology.” The goal: “How do we consume as much of your time and conscious attention as possible?” Facebook engineers discovered that people find it nearly impossible not to log in after receiving an e-mail saying that someone has uploaded a picture of them. Facebook also discovered its power to affect people’s political behavior. Researchers found that, during the 2010 midterm elections, Facebook was able to prod users to vote simply by feeding them pictures of friends who had already voted, and by giving them the option to click on an “I Voted” button. The technique boosted turnout by three hundred and forty thousand people—more than four times the number of votes separating Trump and Clinton in key states in the 2016 race. It became a running joke among employees that Facebook could tilt an election just by choosing where to deploy its “I Voted” button.

    These powers of social engineering could be put to dubious purposes. In 2012, Facebook data scientists used nearly seven hundred thousand people as guinea pigs, feeding them happy or sad posts to test whether emotion is contagious on social media. (They concluded that it is.) When the findings were published, in the Proceedings of the National Academy of Sciences, they caused an uproar among users, many of whom were horrified that their emotions may have been surreptitiously manipulated. In an apology, one of the scientists wrote, “In hindsight, the research benefits of the paper may not have justified all of this anxiety.”

    Facebook was, in the words of Tristan Harris, a former design ethicist at Google, becoming a pioneer in “ persuasive technology.

    Facebook had adopted a buccaneering motto, “Move fast and break things,” which celebrated the idea that it was better to be flawed and first than careful and perfect. Andrew Bosworth, a former Harvard teaching assistant who is now one of Zuckerberg’s longest-serving lieutenants and a member of his inner circle, explained, “A failure can be a form of success. It’s not the form you want, but it can be a useful thing to how you learn.” In Zuckerberg’s view, skeptics were often just fogies and scolds. “There’s always someone who wants to slow you down,” he said in a commencement address at Harvard last year. “In our society, we often don’t do big things because we’re so afraid of making mistakes that we ignore all the things wrong today if we do nothing. The reality is, anything we do will have issues in the future. But that can’t keep us from starting.”

    In contrast to a traditional foundation, an L.L.C. can lobby and give money to politicians, without as strict a legal requirement to disclose activities. In other words, rather than trying to win over politicians and citizens in places like Newark, Zuckerberg and Chan could help elect politicians who agree with them, and rally the public directly by running ads and supporting advocacy groups. (A spokesperson for C.Z.I. said that it has given no money to candidates; it has supported ballot initiatives through a 501(c)(4) social-welfare organization.) “The whole point of the L.L.C. structure is to allow a coördinated attack,” Rob Reich, a co-director of Stanford’s Center on Philanthropy and Civil Society, told me. The structure has gained popularity in Silicon Valley but has been criticized for allowing wealthy individuals to orchestrate large-scale social agendas behind closed doors. Reich said, “There should be much greater transparency, so that it’s not dark. That’s not a criticism of Mark Zuckerberg. It’s a criticism of the law.”

    La question des langues est fondamentale quand il s’agit de réseaux sociaux

    Beginning in 2013, a series of experts on Myanmar met with Facebook officials to warn them that it was fuelling attacks on the Rohingya. David Madden, an entrepreneur based in Myanmar, delivered a presentation to officials at the Menlo Park headquarters, pointing out that the company was playing a role akin to that of the radio broadcasts that spread hatred during the Rwandan genocide. In 2016, C4ADS, a Washington-based nonprofit, published a detailed analysis of Facebook usage in Myanmar, and described a “campaign of hate speech that actively dehumanizes Muslims.” Facebook officials said that they were hiring more Burmese-language reviewers to take down dangerous content, but the company repeatedly declined to say how many had actually been hired. By last March, the situation had become dire: almost a million Rohingya had fled the country, and more than a hundred thousand were confined to internal camps. The United Nations investigator in charge of examining the crisis, which the U.N. has deemed a genocide, said, “I’m afraid that Facebook has now turned into a beast, and not what it was originally intended.” Afterward, when pressed, Zuckerberg repeated the claim that Facebook was “hiring dozens” of additional Burmese-language content reviewers.

    More than three months later, I asked Jes Kaliebe Petersen, the C.E.O. of Phandeeyar, a tech hub in Myanmar, if there had been any progress. “We haven’t seen any tangible change from Facebook,” he told me. “We don’t know how much content is being reported. We don’t know how many people at Facebook speak Burmese. The situation is getting worse and worse here.”

    I saw Zuckerberg the following morning, and asked him what was taking so long. He replied, “I think, fundamentally, we’ve been slow at the same thing in a number of areas, because it’s actually the same problem. But, yeah, I think the situation in Myanmar is terrible.” It was a frustrating and evasive reply. I asked him to specify the problem. He said, “Across the board, the solution to this is we need to move from what is fundamentally a reactive model to a model where we are using technical systems to flag things to a much larger number of people who speak all the native languages around the world and who can just capture much more of the content.”

    Lecture des journaux ou des aggrégateurs ?

    once asked Zuckerberg what he reads to get the news. “I probably mostly read aggregators,” he said. “I definitely follow Techmeme”—a roundup of headlines about his industry—“and the media and political equivalents of that, just for awareness.” He went on, “There’s really no newspaper that I pick up and read front to back. Well, that might be true of most people these days—most people don’t read the physical paper—but there aren’t many news Web sites where I go to browse.”

    A couple of days later, he called me and asked to revisit the subject. “I felt like my answers were kind of vague, because I didn’t necessarily feel like it was appropriate for me to get into which specific organizations or reporters I read and follow,” he said. “I guess what I tried to convey, although I’m not sure if this came across clearly, is that the job of uncovering new facts and doing it in a trusted way is just an absolutely critical function for society.”

    Zuckerberg and Sandberg have attributed their mistakes to excessive optimism, a blindness to the darker applications of their service. But that explanation ignores their fixation on growth, and their unwillingness to heed warnings. Zuckerberg resisted calls to reorganize the company around a new understanding of privacy, or to reconsider the depth of data it collects for advertisers.

    Antitrust

    In barely two years, the mood in Washington had shifted. Internet companies and entrepreneurs, formerly valorized as the vanguard of American ingenuity and the astronauts of our time, were being compared to Standard Oil and other monopolists of the Gilded Age. This spring, the Wall Street Journal published an article that began, “Imagine a not-too-distant future in which trustbusters force Facebook to sell off Instagram and WhatsApp.” It was accompanied by a sepia-toned illustration in which portraits of Zuckerberg, Tim Cook, and other tech C.E.O.s had been grafted onto overstuffed torsos meant to evoke the robber barons. In 1915, Louis Brandeis, the reformer and future Supreme Court Justice, testified before a congressional committee about the dangers of corporations large enough that they could achieve a level of near-sovereignty “so powerful that the ordinary social and industrial forces existing are insufficient to cope with it.” He called this the “curse of bigness.” Tim Wu, a Columbia law-school professor and the author of a forthcoming book inspired by Brandeis’s phrase, told me, “Today, no sector exemplifies more clearly the threat of bigness to democracy than Big Tech.” He added, “When a concentrated private power has such control over what we see and hear, it has a power that rivals or exceeds that of elected government.”

    When I asked Zuckerberg whether policymakers might try to break up Facebook, he replied, adamantly, that such a move would be a mistake. The field is “extremely competitive,” he told me. “I think sometimes people get into this mode of ‘Well, there’s not, like, an exact replacement for Facebook.’ Well, actually, that makes it more competitive, because what we really are is a system of different things: we compete with Twitter as a broadcast medium; we compete with Snapchat as a broadcast medium; we do messaging, and iMessage is default-installed on every iPhone.” He acknowledged the deeper concern. “There’s this other question, which is just, laws aside, how do we feel about these tech companies being big?” he said. But he argued that efforts to “curtail” the growth of Facebook or other Silicon Valley heavyweights would cede the field to China. “I think that anything that we’re doing to constrain them will, first, have an impact on how successful we can be in other places,” he said. “I wouldn’t worry in the near term about Chinese companies or anyone else winning in the U.S., for the most part. But there are all these places where there are day-to-day more competitive situations—in Southeast Asia, across Europe, Latin America, lots of different places.”

    The rough consensus in Washington is that regulators are unlikely to try to break up Facebook. The F.T.C. will almost certainly fine the company for violations, and may consider blocking it from buying big potential competitors, but, as a former F.T.C. commissioner told me, “in the United States you’re allowed to have a monopoly position, as long as you achieve it and maintain it without doing illegal things.”

    Facebook is encountering tougher treatment in Europe, where antitrust laws are stronger and the history of fascism makes people especially wary of intrusions on privacy. One of the most formidable critics of Silicon Valley is the European Union’s top antitrust regulator, Margrethe Vestager.

    In Vestager’s view, a healthy market should produce competitors to Facebook that position themselves as ethical alternatives, collecting less data and seeking a smaller share of user attention. “We need social media that will allow us to have a nonaddictive, advertising-free space,” she said. “You’re more than welcome to be successful and to dramatically outgrow your competitors if customers like your product. But, if you grow to be dominant, you have a special responsibility not to misuse your dominant position to make it very difficult for others to compete against you and to attract potential customers. Of course, we keep an eye on it. If we get worried, we will start looking.”

    Modération

    As hard as it is to curb election propaganda, Zuckerberg’s most intractable problem may lie elsewhere—in the struggle over which opinions can appear on Facebook, which cannot, and who gets to decide. As an engineer, Zuckerberg never wanted to wade into the realm of content. Initially, Facebook tried blocking certain kinds of material, such as posts featuring nudity, but it was forced to create long lists of exceptions, including images of breast-feeding, “acts of protest,” and works of art. Once Facebook became a venue for political debate, the problem exploded. In April, in a call with investment analysts, Zuckerberg said glumly that it was proving “easier to build an A.I. system to detect a nipple than what is hate speech.”

    The cult of growth leads to the curse of bigness: every day, a billion things were being posted to Facebook. At any given moment, a Facebook “content moderator” was deciding whether a post in, say, Sri Lanka met the standard of hate speech or whether a dispute over Korean politics had crossed the line into bullying. Zuckerberg sought to avoid banning users, preferring to be a “platform for all ideas.” But he needed to prevent Facebook from becoming a swamp of hoaxes and abuse. His solution was to ban “hate speech” and impose lesser punishments for “misinformation,” a broad category that ranged from crude deceptions to simple mistakes. Facebook tried to develop rules about how the punishments would be applied, but each idiosyncratic scenario prompted more rules, and over time they became byzantine. According to Facebook training slides published by the Guardian last year, moderators were told that it was permissible to say “You are such a Jew” but not permissible to say “Irish are the best, but really French sucks,” because the latter was defining another people as “inferiors.” Users could not write “Migrants are scum,” because it is dehumanizing, but they could write “Keep the horny migrant teen-agers away from our daughters.” The distinctions were explained to trainees in arcane formulas such as “Not Protected + Quasi protected = not protected.”

    It will hardly be the last quandary of this sort. Facebook’s free-speech dilemmas have no simple answers—you don’t have to be a fan of Alex Jones to be unnerved by the company’s extraordinary power to silence a voice when it chooses, or, for that matter, to amplify others, to pull the levers of what we see, hear, and experience. Zuckerberg is hoping to erect a scalable system, an orderly decision tree that accounts for every eventuality and exception, but the boundaries of speech are a bedevilling problem that defies mechanistic fixes. The Supreme Court, defining obscenity, landed on “I know it when I see it.” For now, Facebook is making do with a Rube Goldberg machine of policies and improvisations, and opportunists are relishing it. Senator Ted Cruz, Republican of Texas, seized on the ban of Jones as a fascist assault on conservatives. In a moment that was rich even by Cruz’s standards, he quoted Martin Niemöller’s famous lines about the Holocaust, saying, “As the poem goes, you know, ‘First they came for Alex Jones.’ ”

    #Facebook #Histoire_numérique

  • Vitamin D, the Sunshine Supplement, Has Shadowy Money Behind It - The New York Times
    https://www.nytimes.com/2018/08/18/business/vitamin-d-michael-holick.html

    Enthusiasm for vitamin D among medical experts has dimmed in recent years, as rigorous clinical trials have failed to confirm the benefits suggested by early, preliminary studies. A string of trials has found no evidence that vitamin D reduces the risk of cancer, heart disease or falls in the elderly. And most scientists say there isn’t enough evidence to know if vitamin D can prevent chronic diseases that aren’t related to bones.

    Although the amount of vitamin D in a typical daily supplement is generally considered safe, it is possible to take too much. In 2015, an article in the American Journal of Medicine linked blood levels as low as 50 nanograms per milliliter with an increased risk of death. That’s within the level considered healthy by the Endocrine Society, which defined vitamin D “sufficiency” as between 30 and 100 nanograms, Rosen said.

    #corruption #conflit_d’intérêt #santé #pharma #vitamine_D

  • Premature Birth Rates Drop in California After Coal and Oil Plants Shut Down
    https://insideclimatenews.org/news/22052018/air-pollution-coal-power-plants-oil-health-risks-premature-births

    The study, published in the American Journal of Epidemiology, found that the rate of premature births dropped from 7 to 5.1 percent after the plants were shuttered, between 2001 and 2011. The most significant declines came among African American and Asian women. Preterm birth can be associated with lifelong health complications.

    The results add fresh evidence to a robust body of research on the harmful effects of exposure to air pollution, especially in young children—even before they’re born.

    “The ah-ha moment was probably just seeing what a large, estimated effect size we got,” said lead author Joan Casey, who is a post-doctoral fellow at UC Berkeley. “We were pretty shocked by it—to the point that we did many, many additional analyses to try to make it go away, and didn’t succeed.”

    #pollution #air

  • Thelazia gulosa: US woman becomes first human infected with parasitic eye worm
    http://www.independent.co.uk/news/world/americas/eye-worm-thelazia-gulosa-first-human-case-abby-beckley-oregon-a820775

    Abby Beckley, a 26-year-old from Oregon, felt an itching sensation in her eye for more than a week before she pulled a half-inch (1.27 cm) long worm out of her own eyeball, researchers said.

    Confused – and worried she might go blind – Ms Beckley went to a local doctor, who fished out two more worms. An ophthalmologist found three more.

    Eventually Ms Beckley wound up at the CDC, where researchers identified the parasite as a member of the Thelazia family. Over the course of 20 days, Ms Beckley and her doctors pulled 14 of the worms out of her eye, according to a report published in the American Journal of Tropical Medicine and Hygiene.

    "They weren’t able to remove them all at once. They had to remove them as they became present and visible,” Richard Bradbury, a CDC researcher and lead author of a case report on the event, told CBS.

    #it_has_begun

  • Viking warrior found in Sweden was a woman, researchers confirm
    https://www.thelocal.se/20170908/confirmed-viking-warrior-was-a-woman

    Have researchers finally discovered Sweden’s real-life version of Lady Brienne of Tarth or Xena the Warrior Princess? New evidence suggest they actually have…
    For more than a century, archaeologists and historians have assumed that the remains of a person found buried along with arms and horses in one of the most spectacular graves discovered in the Viking Age town of Birka, in Sweden, belonged to a man. Turns out they were wrong. Osteology- and DNA tests now show that that he has always been a she, and she was most likely a powerful military leader.

    “It’s actually a woman, somewhere over the age of 30 and fairly tall too, measuring around 170 centimetres,” Charlotte Hedenstierna-Jonson, an archeologist at Uppsala University, told The Local of the findings that were published in the American Journal of Physical Anthropology on Friday.

    “Aside from the complete warrior equipment buried along with her – a sword, an axe, a spear, armour-piercing arrows, a battle knife, shields, and two horses – she had a board game in her lap, or more of a war-planning game used to try out battle tactics and strategies, which indicates she was a powerful military leader. She’s most likely planned, led and taken part in battles,” she said.

  • Why Do Taxonomists Write the Meanest Obituaries ? - Issue 49 : The Absurd
    http://54.197.248.184/issue/49/the-absurd/why-do-taxonomists-write-the-meanest-obituaries-rp

    Constantine Rafinesque had only been dead a few months when Asa Gray sat down to eulogize him for the American Journal of Science. The year was 1841, and Gray, soon to join both the American Academy and the Harvard faculty, was well on his way to becoming the most respected botanist of his generation. Grayia, a new genus of desert shrub, had just been named in his honor. Rafinesque, on the other hand, was persona non grata. Described by peers as a “literary madman,” the Turkish-born polymath had died of cancer the previous fall. Among the many works he left behind were rambling discourses on zoology and geology; a catalog of Native American burial mounds; a new interpretation of the Hebrew Bible; a 5,400-line epic poem (with footnotes); and, last but not least, a lengthy series of (...)

  • Why Do Taxonomists Write the Meanest Obituaries ? - Issue 49 : The Absurd
    http://nautil.us/issue/49/the-absurd/why-do-taxonomists-write-the-meanest-obituaries-rp

    Constantine Rafinesque had only been dead a few months when Asa Gray sat down to eulogize him for the American Journal of Science. The year was 1841, and Gray, soon to join both the American Academy and the Harvard faculty, was well on his way to becoming the most respected botanist of his generation. Grayia, a new genus of desert shrub, had just been named in his honor. Rafinesque, on the other hand, was persona non grata. Described by peers as a “literary madman,” the Turkish-born polymath had died of cancer the previous fall. Among the many works he left behind were rambling discourses on zoology and geology; a catalog of Native American burial mounds; a new interpretation of the Hebrew Bible; a 5,400-line epic poem (with footnotes); and, last but not least, a lengthy series of (...)

  • Why Do Taxonomists Write the Meanest Obituaries ? - Issue 35 : Boundaries
    http://nautil.us/issue/35/boundaries/why-do-taxonomists-write-the-meanest-obituaries

    Constantine Rafinesque had only been dead a few months when Asa Gray sat down to eulogize him for the American Journal of Science. The year was 1841, and Gray, soon to join both the American Academy and the Harvard faculty, was well on his way to becoming the most respected botanist of his generation. Grayia, a new genus of desert shrub, had just been named in his honor. Rafinesque, on the other hand, was persona non grata. Described by peers as a “literary madman,” the Turkish-born polymath had died of cancer the previous fall. Among the many works he left behind were rambling discourses on zoology and geology; a catalog of Native American burial mounds; a new interpretation of the Hebrew Bible; a 5,400-line epic poem (with footnotes); and, last but not least, a lengthy series of (...)

  • The Cost of Color - Contexts
    https://contexts.org/articles/the-cost-of-color

    At the risk of stating the obvious, Black people’s skin tones are brighter and darker shades of brown, not a homogenous blob of black. These skin tone differences hold historical and contemporary significance as markers of distinction tied to unequal treatment. Light-skinned Blacks have tended to gain social advantages including access to more resources and higher social prestige than dark-skinned Blacks.

    Ellis Monk highlights this variation in the American Journal of Sociology. He examines the relationship between skin tone, discrimination, and health for U.S.-born Blacks. Monk finds that darker-skinned Blacks report more perceived everyday discrimination by both Whites and Blacks, but the patterns differ across racial groups. The darker a persons’ skin, the more they perceive discrimination from Whites. However, people with the lightest and darkest skin tones report more discrimination from Blacks. Those with a medium tone report less discrimination across the board.

    #santé #usa #afro-américains #sociologie

  • Blood Brothers: Palestinians and Jews Share Genetic Roots - Israel News - Haaretz Israeli News Source
    http://www.haaretz.com/israel-news/science/.premium-1.681385

    Jews break down into three genetic groups, all of which have Middle Eastern origins – which are shared with the Palestinians and Druze.
    Josie Glausiusz Oct 20, 2015 2:38 PM

    Confronted by the violence sweeping over Israel, it can be easy to overlook the things that Jews and Palestinians share: a deep attachment to the same sliver of contested land, a shared appetite for hummus, a common tradition of descent from the patriarch Abraham, and, as scientific research shows - a common genetic ancestry, as well.

    Several major studies published in the past five years attest to these ancient hereditary links. At the forefront of these efforts are two researchers: Harry Ostrer, professor of pediatrics and pathology at Albert Einstein College of Medicine in the Bronx, New York, and Karl Skorecki, director of medical and research development at the Rambam Health Care Campus in Haifa. Back in June 2010, and within two days of each other, the two scientists and their research teams published extensive analyses of the genetic origins of the Jewish people and their Near East ancestry.
    “The closest genetic neighbors to most Jewish groups were the Palestinians, Israeli Bedouins, and Druze in addition to the Southern Europeans, including Cypriots,” as Ostrer and Skorecki wrote in a review of their findings that they co-authored in the journal Human Genetics in October 2012.
    “Karl and I are good friends,” Ostrer told Haaretz by telephone from New York. “We used somewhat different analytical methods—there’s no claim there for superiority, or one side versus the other.” In their results, as well, “there was really very little difference at all.”
    Ostrer’s research on “Abraham’s Children in the Genome Era,” published in The American Journal of Human Genetics, sampled 652,000 gene variants from each of 237 unrelated individuals from seven Jewish populations: Iranian, Iraqi, Syrian, Italian, Turkish, Greek and Ashkenazi. These sequences were then compared with reference samples from non-Jews drawn from The Human Genome Diversity Project, a global database of genetic information gathered from populations across the world.
    Each of the Jewish populations, they found, “formed its own distinctive cluster,” indicating their shared ancestry and “relative genetic isolation.”
    Ostrer’s team also identified two major groups of Jews: Middle Eastern Jews (Iranian and Iraqi) and European/Syrian Jews. The split between these two groups of Jews occurred some 2,500 years ago.
    Cousins with the Druze and French
    Both groups of Jews shared ancestry with contemporary Middle Eastern and Southern European populations. The closest genetic relatives of the Middle Eastern Jews are Druze, Bedouin and Palestinians. The closest genetic relatives of the European group of Jews are Northern Italians, followed by Sardinians and French.
    In a 2012 study, Ostrer identified North African Jews as a third major group. In Skorecki’s study on the genome-wide structure of the Jewish people, published in the journal Nature, he and his fellow researchers sampled tens of thousands of genetic variants from the genomes of 121 individuals hailing from 14 Jewish Diaspora communities, and compared these variants with samples drawn from 1,166 individuals from 69 Old World non-Jewish populations.
    They found that Jews from the Caucasus (Azerbaijan and Georgia), the Middle East (Iran and Iraq) North Africa (Morocco) and Sephardi and Ashkenazi communities, as well as Samaritans, form a “tight cluster” that overlaps with Israeli Druze.
    This, the authors write, “is consistent with an ancestral Levantine contribution to much of contemporary Jewry.”
    In addition, a “compact cluster” of Yemenite Jews “overlaps primarily with Bedouins but also with Saudi individuals.” Ethiopian and Indian Jews are more closely related to their own neighboring, host populations.
    Middle East origins in European Jews
    Further evidence for the Middle Eastern origins of Ashjenazi Jews came from a study published in 2014: In that research, which appeared in Nature Communications, a team led by Shai Carmi of the Hebrew University of Jerusalem sequenced the complete genomes of 128 people of Ashkenazi Jewish ancestry. Their analysis revealed that the Ashkenazi Jewish population is “an even mix” of European and Middle Eastern ancestral populations—suggesting, as Carmi writes on the web site of The Ashkenazi Genome Consortium (TAGC), “a sex-biased process, where, say, Middle-Eastern Jewish men married European non-Jewish women.”
    Are these genetic ties between Jews, Palestinians, Bedouin, and Druze important in a contemporary context? “It doesn’t matter to me personally,” Skorecki says, “since I think that global human identity supersedes all other considerations.”
    “We want to know who we are and where we came from,” Ostrer, who is now studying cancer risks among Ashkenazi Jews and Northern Israeli Druze populations, sums up. Even so, shared ancestry doesn’t necessarily imply a special bond. As Ostrer notes, citing the Biblical tale of Cain and Abel, “the fact that people are related to one another doesn’t prevent their developing extreme hostility to one another.”

    Josie Glausiusz
    Haaretz Contributor

  • The Scarcity of Abortion Training in America’s Medical Schools - The Atlantic
    http://www.theatlantic.com/health/archive/2015/06/learning-abortion-in-medical-school/395075

    The American College of Obstetricians and Gynecologists recommends that all medical schools offer opt-out abortion training, but the reality still lags behind the official guidelines. In a 2005 survey of U.S. medical schools in the American Journal of Obstetrics and Gynecology, only 32 percent of respondents said they offer a formal lecture specifically about abortion as part of their OB-GYN rotation, and 23 percent reported “no formal education” about abortion at all. (Some schools that don’t have classes about abortion specifically may address the subject in classes on ethics or contraception.) In the same survey, 55 percent of medical schools reported that they offered students no clinical exposure to abortion.

    The University of Arizona College of Medicine, for example, banned abortions at its facilities in the 1970s (except those performed to save the life of the mother) as part of an agreement with the state legislature that authorized $5.5 million to renovate the university’s football stadium. The state Supreme Court upheld the decision in 1976, and elective abortions in public university-affiliated hospitals are still illegal in Arizona. (Several other states, including Kansas, Kentucky, Louisiana, Mississippi, Missouri, North Dakota, Oklahoma, Pennsylvania, and Texas, also have laws in place that restrict or ban abortions in publicly funded institutions, including state universities.) How can future physicians decide they want to provide abortions if they’ve never seen one?

    #avortement #enseignement #femmes #santé

  • Cognitive Benefits of Playing Video Games | Psychology Today
    https://www.psychologytoday.com/blog/freedom-learn/201502/cognitive-benefits-playing-video-games

    The most recent issue of the American Journal of Play (Fall, 2014) includes an article (link is external) by researchers Adam Eichenbaum, Daphne Bavelier, and C. Shawn Green summarizing recent research demonstrating long-lasting positive effects of video games on basic mental processes—such as perception, attention, memory, and decision-making. Most of the research involves effects of action video games—that is, games that require players to move rapidly, keep track of many items at once, hold a good deal of information in their mind at once, and make split-second decisions. Many of the abilities tapped by such games are precisely those that psychologists consider to be the basic building blocks of intelligence.

    L’article de l’étude présentée :

    http://www.journalofplay.org/sites/www.journalofplay.org/files/pdf-articles/7-1-article-video-games.pdf
    #jeux-vidéo #éducation

  • The Jobs With the Highest Obesity Rates - Olga Khazan - The Atlantic
    http://www.theatlantic.com/health/archive/2014/03/the-jobs-with-the-highest-obesity-rates/359849

    Employers want their workers to be healthy—both for insurance-cost and humane reasons—but aspects of those very jobs can make workers sick. A study published this month in the American Journal of Preventive Medicine found that workers who toiled for more than 40 hours per week or were exposed to a hostile work environment were significantly more likely to be obese.

    Both of those are fairly intuitive—long hours at the office can make it hard to squeeze in exercise, and dealing with, shall we say, “a strong personality” all day can make it tempting to indulge in an extra helping of curly fries. (A more tragic explanation would be that people who are already obese are more likely to be harassed at work.)

    But surprisingly, the researchers also found that certain industries and occupations in and of themselves correlate with higher obesity rates, even when controlling for the demographic makeup of those jobs.

    The study authors used data from the 2010 National Health Interview Survey and connected it to self-reported weight and height information, as well as industry and occupation codes from the Census. For the hostility factor, they asked workers: “During the past 12 months were you threatened, bullied, or harassed by anyone while you were on the job?” (The obesity rate was 13 percent higher among those who said yes.)

    Among the industry categories, manufacturing, healthcare/social assistance, transportation/warehousing, information, utilities, and public administration had the highest obesity rates:...

    #santé
    #obésité