{"id":33312,"date":"2018-03-29T17:20:25","date_gmt":"2018-03-29T15:20:25","guid":{"rendered":"https:\/\/ocasapiens-dweb.blogautore.repubblica.it\/?p=33312"},"modified":"2022-02-13T13:05:49","modified_gmt":"2022-02-13T12:05:49","slug":"sorprese-pasquali","status":"publish","type":"post","link":"https:\/\/archivio.ocasapiens.org\/index.php\/2018\/03\/29\/sorprese-pasquali\/","title":{"rendered":"Sorprese pasquali"},"content":{"rendered":"<p>Su <em>Nature<\/em>, il gruppo di Pieter van Dokkum <span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/nature25767#author-information\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">descrive<\/span><\/a> <\/span>una galassia &#8220;ultra-diffusa&#8221;,\u00a0NGC1052\u2013DF2. Prima l&#8217;hanno identificata con strumenti comprati al supermercato: macchine fotografiche digitali con 48 teleobiettivi, montate nel Nuovo Messico, per formare il sistema di telefoto &#8220;<span style=\"color: #0000ff;\"><a href=\"http:\/\/www.dunlap.utoronto.ca\/instrumentation\/dragonfly\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Libellula<\/span><\/a><\/span>&#8221; (&#8220;Dragonfly&#8221;). Poi con telescopi meno fai-da-te, hanno osservato dieci dei suoi ammassi stellari scoprendo che hanno una velocit\u00e0 di rotazione talmente bassa da sembrare fermi. Gli autori ne deducono che la galassia \u00e8 probabilmente priva di materia oscura.<br \/>\n<span style=\"color: #0000ff;\"><a href=\"https:\/\/physicsworld.com\/a\/galaxy-devoid-of-dark-matter-puzzles-astronomers\/\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Apriti cielo<\/span><\/a><\/span>?<br \/>\nNel 2016\u00a0<span style=\"color: #0000ff;\"><a href=\"http:\/\/iopscience.iop.org\/article\/10.3847\/2041-8205\/828\/1\/L6\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">avevano calcolato<\/span><\/a><\/span>\u00a0che la galassia Dragonfly 44 \u00e8 fatta al 99% di materia oscura.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>L&#8217;altra sorpresa, in copertina, \u00e8 che l&#8217;<i><a href=\"http:\/\/txstate.fishesoftexas.org\/MEXICAN%20TETRA.jpg\" target=\"_blank\" rel=\"noopener\">Astyanax mexicanus<\/a>,\u00a0<\/i>un pesciolino cieco che vive in caverne sottomarine dove il cibo \u00e8 scarso, ha una <span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/nature\/volumes\/555\/issues\/7698\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">mutazione<\/span><\/a><\/span> per il recettore dell&#8217;insulina che gli fa svettare il livello del glucosio nel sangue e dovrebbe renderlo gravemente diabetico. Invece \u00e8 altrettanto sano e longevo degli astyanax messicani senza la mutazione che vivono in superficie, anche se pesa di pi\u00f9.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>A proposito dello scandalo Cambridge Analytica, un <span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03856-4\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">editoriale<\/span><\/a> <\/span>invita i ricercatori a darsi una regolata etica &#8211; pare che l&#8217;universit\u00e0 di Cambridge stia preparando un nuovo codice dal 2016&#8230; &#8211; e un <span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03880-4\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">articolo<\/span><\/a><\/span>\u00a0 di Elizabeth Gibney mette in dubbio la scienza dietro il targeting psicografico.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>Un altro predicozzo riguarda gli &#8220;<span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03857-3\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">usi e abusi del DNA antico<\/span><\/a><\/span>&#8220;:<\/p>\n<p style=\"padding-left: 30px;\">\u00a0As we discuss in a\u00a0<span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03773-6\"><span style=\"color: #0000ff;\">News Feature<\/span><\/a><\/span>, the genetic study of ancient DNA is exploding, and the findings are posing several problems. One is a need for geneticists, archaeologists, historians and anthropologists to understand exactly how their skills and insights complement each other\u2019s. It is clear, for example, that although genetics has useful things to say about the sweep of population history, the more conventional disciplines provide essential context.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>Terzo predicozzo nella World View. Bob More che dirige il fondo d&#8217;investimento Alta Health e quello della Fondazione Bill e Melinda Gates, trova che &#8220;<a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03230-4\">Drug executives should take a Hippocratic oath<\/a>&#8220;, lui compreso:<\/p>\n<p style=\"padding-left: 30px;\">We need to move away from gimmicks that raise only the price of drugs, not their value. People who use these tricks should be fired. Their projects should be shunned by venture capitalists and potential funding partners. [&#8230;]<\/p>\n<p style=\"padding-left: 30px;\">If the pharmaceutical industry is to thrive, we must all embrace the Hippocratic oath, whether in academia, business, finance or at the bench. The cost of lost trust to the drug industry is worth much more than manipulated short-term gains.<\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>Nelle lettere al direttore, <a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03794-1\" target=\"_blank\" rel=\"noopener\">Peter Gleick<\/a> et al. e <a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03795-0\" target=\"_blank\" rel=\"noopener\">Colin Butler et al.<\/a> criticano l&#8217;articolo di Courtland Adams et al. &#8220;<span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/s41558-018-0068-2\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Sampling bias in conflict-climate research<\/span><\/a><\/span>&#8220;, uscito su <em>Nature Climate Science<\/em>, e <span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03798-x\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">Solomon Hsiang<\/span><\/a><\/span> et al. criticano l&#8217;<span style=\"color: #0000ff;\"><a href=\"https:\/\/www.nature.com\/articles\/d41586-018-01875-9\" target=\"_blank\" rel=\"noopener\"><span style=\"color: #0000ff;\">editoriale<\/span><\/a><\/span> che lo accompagnava.<br \/>\nNella sezione &#8220;carriera&#8221;, due articoli sono giustapposti:<\/p>\n<p style=\"padding-left: 30px;\"><a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03802-4\">Why laughter in the lab can help your science<\/a><\/p>\n<div style=\"padding-left: 30px;\">Science is serious business, but as April Fool\u2019s Day looms, a judicious prank can lighten up life in the lab<br \/>\n<a href=\"https:\/\/www.nature.com\/articles\/d41586-018-03803-3\">More than one-third of graduate students report being depressed<\/a><br \/>\nRates of anxiety and depression among PhD and master\u2019s students exceed those in general public.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Su Nature, il gruppo di Pieter van Dokkum descrive una galassia &#8220;ultra-diffusa&#8221;,\u00a0NGC1052\u2013DF2. Prima l&#8217;hanno identificata con strumenti comprati al supermercato: macchine fotografiche digitali con 48 teleobiettivi, montate nel Nuovo Messico, per formare il sistema di telefoto &#8220;Libellula&#8221; (&#8220;Dragonfly&#8221;). Poi con telescopi meno fai-da-te, hanno osservato dieci dei suoi ammassi stellari scoprendo che hanno una velocit\u00e0&hellip; <a class=\"more-link\" href=\"https:\/\/archivio.ocasapiens.org\/index.php\/2018\/03\/29\/sorprese-pasquali\/\">Continua a leggere <span class=\"screen-reader-text\">Sorprese pasquali<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,17],"tags":[1084,2434,3561,4294,4725],"class_list":["post-33312","post","type-post","status-publish","format-standard","hentry","category-astronomia","category-genetica","tag-cambridge-analytica","tag-etica","tag-insulina","tag-materia-oscura","tag-nature","entry"],"_links":{"self":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/33312","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/comments?post=33312"}],"version-history":[{"count":2,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/33312\/revisions"}],"predecessor-version":[{"id":45426,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/33312\/revisions\/45426"}],"wp:attachment":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/media?parent=33312"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/categories?post=33312"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/tags?post=33312"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}