organization:texas a&m

  • Encore du nouveau en ce qui concerne le peuplement de l’Amérique du Nord.

    L’étude des pointes de lance donne une nouvelle explication de la façon dont les premiers humains se sont installés en Amérique du Nord.

    Spear point study offers new explanation of how early humans settled North America

    https://today.tamu.edu/2018/04/02/spear-point-study-offers-new-explanation-of-how-early-humans-settled-nor
    Heather Smith and Ted Goebel, Center for the Study of the First Americans, part of the Department of Anthropology at Texas A&M.

    Après la route de la côte, les premiers colons auraient exploré la route de l’intérieur mais du sud vers le nord et non l’inverse comme on le pensait précédemment.

    Although during the late Ice Age there were two possible routes for the first Americans to follow on their migration from the Bering Land Bridge area southward to temperate North America, it now looks like only the Pacific coastal route was used, while the interior Canadian route may not have been fully explored until millennia later, and when it was, primarily from the south

    This is tangible evidence of a connection between people in the Arctic and the Mid-continent 12,000 years ago, a connection which may be either genetic or social, but ultimately, speaks volumes of the capability and adaptability of early cultures in North America

    #Préhistoire #Clovis #12000BP #technique #Peuplement #Amérique_du_Nord #Smith #Goebel #Texas_A&M

  • Uber and Lyft limit personal car use, study says - Business Insider Deutschland
    http://www.businessinsider.de/uber-and-lyft-limit-personal-car-use-study-2017-8

    Ride-hailing giants have said for years that their services will start to kill car ownership by giving urban dwellers a cheaper and more efficient way of getting around.

    A recent study from the University of Michigan Transportation Research Institute, Texas A&M Transportation Institute, and Columbia University supports that notion.

    Uber and Lyft left Austin, Texas in May 2016 after servicing the city since 2014. The ridehailing giants called it quits after voters upheld strict regulations on the companies, like issuing fingerprint-based background checks.

    Uber and Lyft returned in May after lawmakers passed a bill overriding the strict regulations.

    The departure offered a unique window of opportunity for researchers to investigate how people changed their habits after growing accustomed to ride-hailing services.

    The study surveyed 1,200 Austin locals and asked what trips they typically took using an Uber or Lyft. It then asked how they were making those same trips now that the ride-hailing services weren’t available.

    The study found that 41% switched back to their own cars to fill the void left by Uber and Lyft. Among the people who turned back to their own vehicles, 9% bought an additional car strictly for the purpose of getting around without the ride-hailing giants.

    From there, 42% of people surveyed switched to another ride-hailing company in the area. A flurry of community-based services and smaller apps entered Austin in the wake of Uber and Lyft’s departure, such as Arcade City Austin.

    Only 3% of participants surveyed said they turned to public transit.

    The takeaway isn’t so much that Uber and Lyft reduce the need to own a car, but rather they limit how often people use a car they already own, Robert Hampshire, lead author of the study, said in an interview.

    “A large faction of these people already had a car and just weren’t using it as much,” he said. “Then when Uber and Lyft left, they began to use it more often.”

    Still, it’s noteworthy that roughly 100 people felt the need to buy a car without the presence of a major ride-hailing service. Additionally, people who switched to their personal vehicle were 23 times more likely to report making more trips than those who switched to a community-based service like Arcade City Austin.

    “What I thought stood out the most was for those who did switch to their personal vehicle, they drove considerably more often,” Hampshire said.

    Having to weigh the cost of each individual ride may encourage people to take fewer trips, Hampshire said. Most people don’t think about how much they drive after purchasing a vehicle outright.

    That could be good news for major cities, which are grappling with worsening congestion. If people feel compelled to only take a Lyft or Uber when it’s absolutely necessary, that reduces the number of cars on the road. In a small number of cases, the services’ presence could compel someone to forego purchasing a car altogether.

    Hampshire said he was surprised by how few people opted to take public transportation.

    “In Austin, their public transit system is not as built out as other cities. It may not be seen as a viable option,” he said.

    Automakers are preparing for the death of car ownership in cities. General Motors launched in 2016 its car-sharing service called Maven. Maven is primarily used by millennials who may be reluctant to own a car in expensive cities like New York and San Francisco.

    Although the study bodes well for traffic relief, it’s worth taking it with a grain of salt.

    Ditching a personal car in favor of ride-hailing apps can help alleviate traffic if done on a wide enough scale. But unless more people start to rely on carpool services like Lyft Line or UberPOOL, ride-hailing still contributes to more single-occupancy cars on the road.

    Hampshire said of the people surveyed who used Uber and Lyft as their primary method for getting around, only 12% elected to use the companies’ carpool options.

    The study’s results may also vary in cities that have better access to public transportation.

    Either way, the study shows ride-hailing can make it easier to ditch personal cars in large cities.

    #Uber #disruption #USA

  • After Barcelona attack, Trump said we should study John J. Pershing. Here’s what Trump got wrong. - The Washington Post
    https://www.washingtonpost.com/news/retropolis/wp/2017/08/18/after-barcelona-attack-trump-said-to-study-general-pershing-heres-wh

    A sordid tale of General John J. Pershing executing Muslim insurgents in the Philippines at the turn of the century is a favorite of President Trump.

    They were having terrorism problems, just like we do,” Trump told a throng of cheering supporters in South Carolina in February 2016.

    [Pershing] caught 50 terrorists who did tremendous damage and killed many people. And he took the 50 terrorists, and he took 50 men and he dipped 50 bullets in pigs’ blood — you heard that, right? He took 50 bullets, and he dipped them in pigs’ blood. And he had his men load his rifles, and he lined up the 50 people, and they shot 49 of those people. And the 50th person, he said: You go back to your people, and you tell them what happened. And for 25 years, there wasn’t a problem.

    It’s a story Trump has repeated, and echoed again Thursday after what authorities have called a terrorist attack in Barcelona that killed at least 13 people and left many more wounded when a driver smashed his van onto a busy sidewalk.

    Study what General Pershing of the United States did to terrorists when caught. There was no more Radical Islamic Terror for 35 years!” he tweeted.

    Brian M. Linn, a history professor at Texas A&M University, did just that nearly two decades ago when he published “Guardians of Empire,” a book on the U.S. military presence in Asia from 1902 to 1940.

    His verdict on Trump’s claim?

    There is absolutely no evidence this occurred,” he told The Washington Post.

    #fake_news !
    suivent détails sur l’affaire, son invention (ou ré-invention) après 2001 et autres horreurs commises par les états-uniens lors de la répression de l’insurrection aux Philippines après la conquête de 1898.

    Other atrocities were committed by U.S. forces during the conflict. After a garrison of Army soldiers was overrun and massacred, a unit of Marines was dispatched in September 1902 to root out insurgents on the island of Samar on the central coast. Major Little Waller, who led the Marine unit, arrived from China and was unfamiliar with the terrain. Fever overtook him, his men panicked and the Filipino porters carrying his equipment mutinied.

    Eleven porters were executed in a remote area, but news of the act quickly spread. “Dead men tell no tales, but they leave an awful smell” became a common American saying afterward, Linn said. Waller was later acquitted in a court-martial.

  • Les États-Unis sont-ils encore les États-Unis ?

    http://www.huffingtonpost.fr/henry-rousso/muslim-ban-donald-trump-etats-unis

    Narration intéressante et mesurée de l’historien Henri Rousso, arrêté à l’aéroport de Houston en chemin pour une conférence, et à deux doigts d’être expulsé si ses collègues de l’université n’étaient pas intervenus. La même chose ou presque est arrivé à une auteure australienne de livres pour enfants à Los Angeles (signalé sur seenthis il y a quelques jours)

    Le 22 février dernier, j’ai atterri vers 14h30 à l’aéroport de Houston, aux États-Unis, en provenance de Paris. Je devais me rendre à un colloque de la Texas A&M University (College Station), où j’ai été invité à plusieurs reprises ces dernières années. Au guichet de l’immigration, une fonctionnaire me refuse l’entrée et m’emmène dans une salle attenante pour contrôle, sans explications. Une trentaine de personnes y attendent que l’on statue sur leur sort. J’observe machinalement une certaine fréquence dans les entrées et sorties. Au bout de trois quarts d’heure, alors que la plupart de ceux qui attendent repartent sans problèmes, un jeune officier de police me demande de le suivre dans un bureau particulier. Commence alors un interrogatoire informel. Je lui demande ce qui me vaut d’être là. Il me répond : « contrôle aléatoire » (random check). Il me demande ce que je viens faire aux États-Unis. Je lui présente alors la lettre d’invitation de l’université. Cette intervention doit-elle être rémunérée ?

  • Les États-Unis sont-ils encore les États-Unis ?
    http://www.huffingtonpost.fr/henry-rousso/muslim-ban-donald-trump-etats-unis

    Le 22 février dernier, j’ai atterri vers 14h30 à l’aéroport de Houston, aux États-Unis, en provenance de Paris. Je devais me rendre à un colloque de la Texas A&M University (College Station), où j’ai été invité à plusieurs reprises ces dernières années. Au guichet de l’immigration, une fonctionnaire me refuse l’entrée et m’emmène dans une salle attenante pour contrôle, sans explications. Une trentaine de personnes y attendent que l’on statue sur leur sort. J’observe machinalement une certaine fréquence dans les entrées et sorties. Au bout de trois quarts d’heure, alors que la plupart de ceux qui attendent repartent sans problèmes, un jeune officier de police me demande de le suivre dans un bureau particulier. Commence alors un interrogatoire informel. Je lui demande ce qui me vaut d’être là. Il me répond : « contrôle aléatoire » (random check). Il me demande ce que je viens faire aux États-Unis. Je lui présente alors la lettre d’invitation de l’université. Cette intervention doit-elle être rémunérée ? Je confirme – c’est la règle dans beaucoup universités Nord-américaines. Il m’objecte alors que je n’ai qu’un visa touristique et non un visa spécifique de travail. Je lui réponds que je n’en ai pas besoin, que l’université s’est occupée comme d’habitude des formalités et, surtout, que je fais cela depuis plus de trente ans sans jamais avoir eu le moindre ennui. Son attitude se fait alors encore plus suspicieuse. Examinant mon passeport, il relève que j’ai bénéficié récemment d’un visa « J1 », accordé notamment aux universitaires. J’ai été, en effet, professeur invité à l’Université Columbia de New York, de septembre 2016 à janvier 2017. Il conclut que je suis donc revenu travailler « illégalement » avec un visa expiré.

    • Ouaip, quand un fonctionnaire veut pas que ca passe, c’est mal barré, paranoïa mode on. C’est toujours assez vertigineux comme situation. Entre la loi et son application, y a ces agents qui me font crier dans la tête « Kafka ! Kafka ! ».

  • Liberal Zionism in the Age of Trump

    Avec l’arrivée au pouvoir de Trump, la contradiction vécue par nombre de Juifs américains entre l’attachement au libéralisme américain (inclusif) et l’attachement au sionisme (exclusif) risque de devenir intenable - une analyse du philosophe Omri Boehm.

    That difficulty was apparent earlier this month at an event at Texas A&M University when Richard Spencer, one of the ideological leaders of the alt-right’s white nationalist agenda — which he has called “a sort of white Zionism” — was publicly challenged by the university’s Hillel Rabbi Matt Rosenberg, to study with him the Jewish religion’s “radical inclusion” and love. “Do you really want radical inclusion into the state of Israel?” Spencer replied. “Maybe all of the Middle East can go move into Tel Aviv or Jerusalem. Would you really want that?” Spencer went on to argue that Israel’s ethnic-based politics was the reason Jews had a strong, cohesive identity, and that Spencer himself admired them for it.

    The rabbi could not find words to answer, and his silence reverberates still.

    #sionisme #israel #trump #alt-right #extrême-droite #nationalisme #libéralisme

    http://www.nytimes.com/2016/12/20/opinion/liberal-zionism-in-the-age-of-trump.html?em_pos=large&emc=edit_ty_20161220&

  • Water insecurity: think poverty, not climate

    I’ve recently become acquainted with interesting research by Texas A&M geographer Wendy Jepson, who has studied household water insecurity along the U.S.-Mexico border. There’s a tendency to look for a technological fix (“Look at this cool new filter we invented!”), but Jepson found this less than effective (“HWS” is “household water security”):


    http://www.inkstain.net/fleck/2016/02/water-insecurity-think-poverty-not-climate
    #eau #pauvreté #climat #Etats-Unis #Mexique #USA

  • More people in #Europe are dying than are being born
    http://phys.org/news/2016-01-people-europe-dying-born.html

    Texas A&M Professor of Sociology Dudley Poston, along with Professor Kenneth Johnson, University of New Hampshire, and Professor Layton Field, Mount St. Mary’s University, published their findings in Population and Development Review this month.

    The researchers find that 17 European nations have more people dying in them than are being born (natural decrease), including three of Europe’s more populous nations: Russia, Germany and Italy. In contrast, in the U.S. and in the state of Texas, births exceed deaths by a substantial margin.

    #démographie

  • Prise de deux grandes villes au Yémen par al-Qaïda.Dépêche in extenso :
    http://www.lemonde.fr/proche-orient/article/2015/12/02/aqpa-profite-du-conflit-entre-houthistes-et-forces-loyales-pour-s-emparer-de
    AQPA profite du conflit entre houthistes et forces loyales pour s’emparer de deux localités au Yémen

    Les forces d’Al-Qaida dans la péninsule arabique (AQPA) se sont emparées, mercredi 2 décembre, de deux grandes villes du sud du Yémen, Zinjibar et Jaar, à l’est d’Aden. Le chef des forces des comités populaires pour la province d’Abyan, a indiqué avoir informé les autorités de l’imminence de l’attaque d’AQPA sans susciter pour autant de réaction.

    La prise de ces localités situées dans la province d’Abyane permettrait aux djihadistes d’assurer une ligne de ravitaillement entre les villes de Moukalla sous leur contrôle et d’Aden, où ils sont présents. Zinjibar, la capitale de la province d’Abyan, et Jaar sont situées à une cinquantaine de kilomètres seulement à l’est d’Aden.

    Les deux villes étaient déjà tombées brièvement sous le contrôle des forces d’AQPA il y a quatre ans. AQPA avait alors profité de la contestation contre le régime du président Ali Abdallah Saleh, en plein « mouvement des printemps arabes », qui avait fragilisé les structures du pays. L’armée yéménite avait délogé les djihadistes un an plus tard.

    Cette fois, AQPA met à profit le conflit qui oppose les rebelles chiites houthistes, maîtres de la capitale, Sanaa, depuis septembre 2014, et les forces restées loyales au successeur de Saleh, Abd-Rabbou Mansour Hadi, appuyées par une coalition mise en place par l’Arabie saoudite.

    Les Etats-Unis considèrent AQPA comme la branche la plus dangereuse de la nébuleuse Al-Qaida et ont lancé cette année plusieurs attaques de drones contre des membres du réseau extrémiste au Yémen, tuant en juin son chef Nasser Al-Wahishi, qui était aussi le numéro 2 d’Al-Qaida au niveau mondial.

  • Obama must end support for Israeli apartheid against Palestinian scholars
    4 septembre | Radhika Balakrishnan et al |Tribunes

    US President Barack Obama, in a recent interview with Jeffrey Goldberg in The Atlantic, reaffirmed his support and love for Israel because, as he claims, “it is a genuine democracy and you can express your opinions.”

    He further expressed his commitment to protecting Israel as a “Jewish state” by ensuring a “Jewish majority.”

    The US government’s support for the “Jewish state” has always been far more than rhetorical, backed by billions of dollars of military funding and consistent pro-Israel vetoes at the UN Security Council.

    We are a group of US-based academics, representing diverse ethnic, racial and cultural backgrounds, as well as a range of national origins, who recently visited Palestine. We were able to gain firsthand exposure to what Obama described in the interview as Israel’s “Jewish democracy” and to what kinds of infrastructure our tax dollars help to support — walls, checkpoints and modern weaponry.

    We had the privilege of traveling through part of the occupied Palestinian territories — the West Bank, including East Jerusalem — where we met with Palestinians.

    Double standards

    We feel compelled to share a few examples of what we witnessed during our visit with Palestinian scholars, policy makers, activists, artists and others working in the West Bank. We observed numerous double standards with regard to Palestinians’ rights that prompt us to question the claim that Israel is a genuine democracy.

    We believe that our government’s assertions that Israel is a democracy obscures the conditions it imposes on the Palestinian people through the occupation and beyond with conditions that amount to apartheid under settler colonialism.

    Our concerns began even before we arrived, as a search of the US State Department website for information about travel to Israel returned sobering results.

    The US government warns travelers to back up their computers because Israeli border control officials can erase anything at will. This indeed happened to one of us upon leaving Tel Aviv to return to the US.

    The site also warns travelers that their personal email or social media accounts may be searched, and so travelers “should have no expectation of privacy for any data stored on such devices or in their accounts.” Equipment may also be confiscated.

    The State Department further acknowledges that US citizens who are Muslim and/or of Palestinian or other Arab descent may have considerable trouble entering or exiting through Israeli-controlled frontiers. And this too happened to one of us who had mobile phone contacts searched immediately on entering Tel Aviv.

    Profiling

    Concerns in entering and exiting pale in comparison to the restrictions placed on US citizens of Palestinian origin, along with all other Palestinians who hold identification documents from the occupied West Bank and Gaza.

    Before traveling, most of us did not understand that for Palestinians under occupation, there are several types of identification and profiling and each comes with its own restrictions on mobility.

    Palestinians from Jerusalem have identification cards they must carry in a blue booklet while those living in the rest of the occupied West Bank hold an ID card in a green booklet, issued to them from the Palestinian Authority with the permission of the Israeli government.

    People possessing that identification generally cannot enter Jerusalem or present-day Israel without prior permission, even for a visa interview to attend an academic meeting in the US. Many people we met had only visited Jerusalem, home to many holy sites, once in their lives despite being mere minutes away by car.

    In the rest of the West Bank, a US citizen of Palestinian origin who wants to live there long term has to obtain a visa that says West Bank only. They are not allowed to travel in and out of the West Bank and are subject to the same checkpoints as other Palestinians. They cannot leave the occupied territories as a US citizen, as the State Department warns on its website.

    A Palestinian in the West Bank who holds US citizenship cannot simply catch a plane from Tel Aviv like any other US citizen simply because he or she is Palestinian and holds a Palestinian ID card. This fact is stamped into the US passport.

    They are not allowed to enter the checkpoints into Jerusalem or any other checkpoints as other people with a US passport can. This restriction is not at all applied to the Jewish settlers who are growing in number — thousands of them US citizens who are choosing to live in the occupied West Bank inside illegal settlements financed in part by US tax-exempt organizations.

    Academic freedom

    As scholars, among the many disturbing things we witnessed was the limited academic freedom and freedom of speech imposed on Palestinians (and many Israelis, whose travel in the West Bank is restricted) by the Israeli government.

    We learned that there is a prohibition on most books published in Syria, Iran and Lebanon even though Beirut is a central publishing hub of Arabic literary materials in the region. Regardless, banning books is, in our view, a profoundly anti-democratic act.

    Israel’s wall that surrounds the West Bank including Jerusalem — and which snakes deep inside the West Bank in many locations — also functions to limit academic freedom.

    One of the starkest examples is in Bethlehem, where the wall cuts through the city, making access to education at Bethlehem University very difficult for those who happen to be on the wrong side of the wall’s many twists and turns.

    Additionally, the Abu Dis campus of Al-Quds University is completely surrounded by the wall, making travel to and from the campus incredibly arduous despite it being in Jerusalem.

    An academic colleague described to us the difficulties she experiences getting to campus on a typical day. She must pass through roadblocks and endure searches and myriad forms of harassment by Israeli soldiers. In the West Bank, we were shocked to witness separate roads for Palestinians and Israelis based on the color of one’s license plate and identity card.

    In theory, these roads exist for the protection of Israeli settlers living on settlements built in the West Bank illegally according to international law. In practice, these roads create an apartheid travel system where Palestinians encounter several checkpoints on a given day, some of which may be mobile, unpredictably placed “flying checkpoints.”

    As our colleague explained to us, what used to be a very short trip between her village and the university now often takes more than an hour and a half and she is expected to cross through at least three checkpoints. She is often late to teach her classes and some days she is unable to make it to work or back home at all.

    Her students are often arrested and jailed using the legal cover of administrative detention — detention without charge or trial for an indefinite amount of time — for their participation in any political activities, or simply for being in the wrong place at the wrong time. We heard that this process is intensified at exam periods.

    This creates an extraordinarily stressful academic environment when on any given day Israeli soldiers might detain students and faculty who are simply traveling to class.

    Impunity

    We recognize every people’s desire to be secure — and Israel’s supporters will defend its policies and actions in the name of its national security. What we witnessed during our visit is that “security” was offered as a rationale for almost any troubling behavior or policy.

    What we witnessed was a slow but deliberate expansion of Israel’s occupation, increased settlements, the taking over of agricultural land and the spread of industrial parks in the West Bank including substantial parts of East Jerusalem — all in the name of “security.”

    The United States, as a settler colonial state with its own occupations, police violence, carceral injustice, de facto apartheid and its own brand of border brutality — certainly has its own failings as a democracy, failings we continue to address in our intellectual and political work.

    We thus claim no moral high ground. But an ethnocracy is not a democracy ; the State of Israel imposes violent domination of the Palestinian people through colonialism, occupation and apartheid — three prongs of brutal oppression that are the very antithesis of democracy.

    As academics, watching attempts to stifle criticism of Israel — as in the case of our colleague, Professor Steven Salaita — and visiting the West Bank has prompted us to speak out publicly about Israel’s injustices. Doing so is imperative.

    We implore President Obama to reconsider his rhetoric and policies — and budget appropriations — that support Israel with impunity.

    Radhika Balakrishnan is professor of Women’s and Gender Studies at Rutgers University.

    Karma R. Chávez is associate professor of Communication Arts at the University of Wisconsin, Madison.

    Ira Dworkin is assistant professor of English at Texas A&M University.

    Erica Caple James is associate professor of Anthropology at Massachusetts Institute of Technology.

    J. Kēhaulani Kauanui is associate professor of American Studies and Anthropology at Wesleyan University.

    Doug Kiel is assistant professor of American Studies at Williams College.

    Barbara Lewis is associate professor of English at the University of Massachusetts, Boston.

    Soraya Mekerta is director of the African Diaspora and the World Program, and associate professor of French and Francophone Studies at Spelman College.

    http://www.aurdip.fr/obama-must-end-support-for-israeli.html

    L’AURDIP (Association des Universitaires pour le Respect du Droit International en Palestine) est une organisation française d’universitaires créée en liaison avec la Campagne Palestinienne pour le Boycott Académique et Culturel d’Israël PACBI et avec l’organisation britannique BRICUP.

  • Disparition du Boeing #MH370 : l’hypothèse scientifique / Sputnik France - Actualités - Prises de Position - Radio
    http://fr.sputniknews.com/sci_tech/20150612/1016528759.html

    « Ce qui s’est passé avec le MH370 et ses passagers restera sans doute un mystère jusqu’à ce qu’un jour quelqu’un découvre la boîte noire de l’avion et la décode. Notre expertise révèle que le Boeing est probablement tombé dans l’océan en piqué », déclare Goong Chen de l’Université du Texas A&M à Doha (Qatar).

    Chen et ses collègues, dont le mathématicien russo-qatari Alexeï Sergueïev, sont arrivés à cette conclusion en essayant de simuler la chute de l’avion MH370 à l’aide des superordinateurs EOS et RAAD au Texas et au Qatar.
    Selon les explications des chercheurs, la chute d’un objet dans l’eau à une grande vitesse et selon un certain angle s’accompagne de deux phénomènes que nous ne remarquons normalement pas — une « bulle » d’air autour de l’objet en chute qui l’accompagne sous l’eau, et une sorte de « bosse » d’eau très condensée qui évolue avec l’objet qui coule.

    Suite à ces deux phénomènes, comme l’ont démontré les simulations de Chen et de ses collègues, l’avion ne coulera pas immédiatement, et une partie de ses débris, du carburant et des liquides techniques restera à la surface. Un tel scénario se produira selon presque tous les angles d’entrée de l’avion dans l’eau et à plusieurs vitesses, ce qui incite les chercheurs à penser que le MH370 a pu tomber dans l’océan en fort piqué.
    Les calculs répétés des superordinateurs ont confirmé qu’un tel scénario conduisait à des conséquences potentiellement identiques au scénario du MH370 : l’avion aurait pu couler dans les eaux de l’océan Indien en ne laissant aucune trace, et son fuselage rester pratiquement intact — pendant la chute, seules les ailes se seraient brisées mais, ayant une grande masse, elle auraient vite coulé au fond de l’océan.

    Article (téléchargeable) publié dans les Notes of the American Mathematical Society d’avril 2015. Résultat de la modélisation de la pénétration de la surface de l’eau en dynamique des fluides et de la comparaison des 5 variantes simulées ; le piqué vertical est la seule des hypothèses testées qui conduit à l’absence de débris en surface.

    Assez étrange, puisque dans la simulation la vitesse verticale est retenue autour de 20 m/s, sachant qu’une vitesse supérieure à cette valeur provoque la dislocation instantanée de l’appareil…
    http://www.ams.org/notices/201504/index.html

    à noter dans le même numéro, la reprise d’un article sur Grothendieck paru dans le numéro d’octobre 2014 de la revue Inference : International Review of Science, en anglais et en français

    Alexander Grothendieck
    Un pays dont on ne connaîtrait que le nom
    http://inference-review.com/article/un-pays-dont-on-ne-connaitrait-que-le-nom

  • Notre jugement moral influencé par la (mal) chance ? - Machines like Us
    http://alireailleurs.tumblr.com/post/82777013469

    Une équipe de l’université de l’université du Texas A&M a découvert que les gens avaient tendance à juger plus durement quelqu’un dont les actes ont nui à autrui qu’un autre qui a commis la même action immorale, mais sans conséquences particulières, nous dit le blog Machines Like Us. Par exemple lorsqu’on demandait aux sujets comment ils jugeaient un homme jetant une brique sur une route, sans qu’elle nuise à quiconque, et un autre dont la brique tombait sur une voiture et tuait le conducteur, le jugement était généralement beaucoup plus sévère pour le second, alors que seule la chance différenciait les deux actes délictueux. « C’est un peu comme l’alcool au volant », a expliqué Heather Lench, qui a dirigé l’expérience. "Une personne qui boit avant de conduire et ne déclenche aucun accident sera condamnée (...)

  • Birth defects linked to bad water in California’s San Joaquin Valley | McClatchy
    http://www.mcclatchydc.com/2013/07/15/196723/birth-defects-linked-to-bad-water.html

    The study from Texas A&M was published last month in the peer-reviewed journal Environmental Health Perspectives, making the strongest case to date about nitrates and birth defects.

    #santé #eau #nitrates #malformations_néo-natales