{"id":28895,"date":"2015-11-09T15:39:10","date_gmt":"2015-11-09T14:39:10","guid":{"rendered":"https:\/\/ocasapiens-dweb.blogautore.repubblica.it\/?p=28895"},"modified":"2021-12-05T18:10:53","modified_gmt":"2021-12-05T17:10:53","slug":"impatto-fattore-di","status":"publish","type":"post","link":"https:\/\/archivio.ocasapiens.org\/index.php\/2015\/11\/09\/impatto-fattore-di\/","title":{"rendered":"Impatto, fattore di"},"content":{"rendered":"<p>Riass. punt. prec. Ricercatori in scienze biomediche e in bibliometria criticano le valutazioni di una ricerca in base all&#8217;impact factor della rivista sulla quale esce, detto JIF. Nel 2013 i biomed lanciano la <strong><a href=\"http:\/\/www.ascb.org\/dora\/\" target=\"_blank\" rel=\"noopener\">Dichiarazione di San Francisco<\/a><\/strong> (Dora), nel 2014 i bibliomet il\u00a0<strong><a href=\"http:\/\/www.roars.it\/online\/leiden-manifesto-for-research-metrics\/\" target=\"_blank\" rel=\"noopener\">Manifesto di Leida<\/a><\/strong>. Fine riass. p.p.<\/p>\n<p>Gli NIH ne tengono conto e decidono di dotarsi di una metrica alternativa. Detta RCR, \u00e8 un algoritmo messo a punto da George Santangelo et al. Il mese scorso lo spiegavano in un paper su <a href=\"http:\/\/dx.doi.org\/10.1101\/029629\" target=\"_blank\" rel=\"noopener\">bioRxiv<\/a>; semplificando di brutto, tiene conto del JIF degli articoli citati in bibliografia, cio\u00e8 del &#8220;network&#8221; in cui rientra una particolare ricerca.<\/p>\n<p><strong><a href=\"http:\/\/www.ascb.org\/nature-of-scientific-impact\/\" target=\"_blank\" rel=\"noopener\">Stefano Bertozzi<\/a><\/strong>, direttore della Soc. Am. di Biologia Cellulare e co-autore di Dora, pur contrario a un singolo indice, \u00e8 soddisfatto:<\/p>\n<ul>\n<li><em>The RCR provides us a\u00a0<a href=\"https:\/\/icite.od.nih.gov\/\" target=\"_blank\" rel=\"noopener\">new sophisticated analytical tool<\/a>, which I hope will put another nail into the coffin of the phony metric of the journal impact factor. &#8230; \u00a0I am not a bibliometrician, so I don\u2019t pretend to have all the skills to evaluate the metric algorithm in detail. But I am familiar with research evaluation and, after reading this paper carefully, I am convinced it adds something important to our toolbox in the thorny field of research assessment. I am reminded by something that the legendary Nobel laureate Renato Dulbecco once told me: Based on the JIF metric not only would Dulbecco have never been awarded the Nobel Prize, but he probably would have never gotten a job, since his landmark papers were published in rather obscure journals.<\/em><\/li>\n<\/ul>\n<p>Per il bibliomet. <a href=\"http:\/\/www.cwts.nl\/blog?article=n-q2u294&amp;title=nihs-new-citation-metric-a-step-forward-in-quantifying-scientific-impact\" target=\"_blank\" rel=\"noopener\">Ludo Waltman<\/a>, co-autore del Manifesto di Leida, invece<\/p>\n<ul>\n<li><em>The most significant weakness of the RCR metric is the lack of a theoretical model for why the metric should provide properly field-normalized statistics. In fact, it is not difficult to cast doubt on the theoretical soundness of the RCR metric. The metric for instance has the highly undesirable property that receiving additional citations may cause the RCR of a publication to decrease rather than increase.<\/em> (Segue esempio.)<\/li>\n<li><em>Does the RCR metric represent a significant step forward in quantifying scientific impact? Even though the metric is based on some interesting ideas (e.g., the use of co-citations to define the field of a publication), the answer to this question must be negative.\u00a0<\/em><\/li>\n<\/ul>\n<p>Grande disordine sotto il cielo e su twitter, dice un <a href=\"http:\/\/www.nature.com\/news\/nih-metric-that-assesses-article-impact-stirs-debate-1.18734\" target=\"_blank\" rel=\"noopener\">articolo<\/a> di <em>Nature<\/em>. Per\u00f2 mi sembra probabile che tutti siano d&#8217;accordo con questa frase di Waltman:<\/p>\n<blockquote>\n<ul>\n<li><em>Given the sometimes contradictory objectives in quantifying scientific impact (e.g., the trade-off between accuracy and transparency), a perfect indicator of scientific impact probably will never be found.<\/em><\/li>\n<\/ul>\n<\/blockquote>\n<p style=\"text-align: center;\">***<\/p>\n<p style=\"text-align: center;\"><img decoding=\"async\" src=\"https:\/\/westafricanenergy.files.wordpress.com\/2015\/04\/keeling-curve2.png?w=696\" alt=\"\" \/><\/p>\n<p style=\"text-align: left;\"><strong>Verso la COP21<\/strong><\/p>\n<p style=\"text-align: left;\">Dalla <strong><a href=\"http:\/\/www.bbc.com\/news\/science-environment-34763036\" target=\"_blank\" rel=\"noopener\">BBC<\/a>:<\/strong><\/p>\n<p><em>The HadCRUT database showed that in the first nine months of this year, the global mean temperature had just gone above 1C, hitting 1.02 with a error factor of plus or minus 0.11C. <\/em>(Rispetto alla media 1850-1900, ndr).<em>\u00a0Scientists say that the 1 degree mark will be broken in 2015 because of a combination of carbon emissions and the impact of the\u00a0<a href=\"http:\/\/www.bbc.co.uk\/news\/science-environment-34236010\">El Nino weather phenomenon<\/a>. <\/em><\/p>\n<p>Dal &#8220;Grenhouse Gas Bulletin&#8221; per il 2014 del\u00a0<strong><a href=\"http:\/\/library.wmo.int\/pmb_ged\/ghg-bulletin_11_en.pdf\" target=\"_blank\" rel=\"noopener\">WMO\u00a0<\/a><\/strong><\/p>\n<p><em>The latest analysis of observations from the WMO Global Atmosphere Watch (GAW) Programme shows that the globally averaged mole fractions of carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O) reached new highs in 2014, with CO2 at 397.7\u00b10.1 ppm, CH4 at 1833\u00b11 ppb[2] and N2O at 327.1\u00b10.1 ppb. These values constitute, respectively, 143%, 254% and 121% of pre-industrial (1750) levels.<\/em><\/p>\n<p style=\"text-align: center;\">*<\/p>\n<p>Su <a href=\"http:\/\/oggiscienza.it\/2015\/11\/09\/cambiamento-climatico-bufale\/\" target=\"_blank\" rel=\"noopener\"><strong>Oggi Scienza<\/strong><\/a>, cerco di spiegare come l&#8217;inventore del &#8220;casco di Dio&#8221; dimostra che il riscaldamento globale \u00e8 dovuto alla variazione del campo magnetico terrestre&#8230;<\/p>\n<p style=\"text-align: center;\">***<\/p>\n<p><strong>Spettacoli<\/strong><br \/>\n<strong><a href=\"http:\/\/www.nytimes.com\/interactive\/2015\/11\/06\/science\/breakthrough-prize-winners-2016.html\" target=\"_blank\" rel=\"noopener\">Cerimonia<\/a><\/strong> da &#8220;Oscar&#8221; ieri alla NASA per i premi del <strong><a href=\"https:\/\/breakthroughprize.org\/News\/29\" target=\"_blank\" rel=\"noopener\">Breakthrough Institute<\/a>\u00a0<\/strong>a<\/p>\n<ul>\n<li>i leader di cinque gruppi a caccia di oscillazioni di neutroni, di cui due hanno appena ricevuto il Nobel per la fisica, e i loro collaboratori (pi\u00f9 di mille)<\/li>\n<li><a href=\"http:\/\/profiles.utsouthwestern.edu\/profile\/13232\/helen-hobbs.html\" target=\"_blank\" rel=\"noopener\">Helen Hobbs<\/a>\u00a0della University of Southern Texas per gli alleli collegati ai livelli di colesterolo<\/li>\n<li><a href=\"http:\/\/www.eva.mpg.de\/genetics\/staff\/paabo\/index.html\" target=\"_blank\" rel=\"noopener\">Svante P\u00e4\u00e4bo<\/a> del Max Planck di Lipsia per il genoma di antenati <em>dell&#8217;H. sapiens<\/em><\/li>\n<li><a href=\"http:\/\/syntheticneurobiology.org\/\" target=\"_blank\" rel=\"noopener\">Ed Boyden<\/a> del MIT e\u00a0<a href=\"http:\/\/web.stanford.edu\/group\/dlab\/about_pi.html\" target=\"_blank\" rel=\"noopener\">Karl Deisseroth<\/a>\u00a0di\u00a0Stanford per l&#8217;optogenetica<\/li>\n<li><a href=\"http:\/\/www.ucl.ac.uk\/ukpdc\/principal-investigators\/john-hardy\" target=\"_blank\" rel=\"noopener\">John Hardy <\/a>dello University College di Londra per le mutazioni di un gene collegate alle placche amiloidi dell&#8217;Alzheimer<\/li>\n<li>il matematico <a href=\"https:\/\/math.berkeley.edu\/people\/faculty\/ian-agol\" target=\"_blank\" rel=\"noopener\">Ian Agol <\/a>dell&#8217;UC-Berkeley per &#8230; I&#8217;m stumped!<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><span style=\"line-height: 1.5em;\">*<\/span><\/p>\n<p><span style=\"line-height: 1.5em;\">Devo essermi svegliata troppo tardi, Luna, Venere e Marte erano all&#8217;appuntamento ma, come ieri, Giove non si vedeva pi\u00f9.\u00a0<\/span><span style=\"line-height: 1.5em;\">Restano s<\/span><span style=\"line-height: 1.5em;\">pettacolari a ogni ora gli <strong><a href=\"http:\/\/www.treeseedonline.com\/uploads\/1\/0\/2\/3\/10233208\/s468003859194629765_p223_i1_w1062.jpeg\" target=\"_blank\" rel=\"noopener\">storaci americani<\/a><\/strong> del quartiere che virano dal giallo al viola quasi nero &#8211; e la volgarit\u00e0 fieramente esibita dal &#8220;<a href=\"https:\/\/it.linkedin.com\/in\/christian-corda-4933b736\" target=\"_blank\" rel=\"noopener\">Full Professor of Theoretical Physics<\/a>&#8221; sotto il post precedente.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Riass. punt. prec. Ricercatori in scienze biomediche e in bibliometria criticano le valutazioni di una ricerca in base all&#8217;impact factor della rivista sulla quale esce, detto JIF. Nel 2013 i biomed lanciano la Dichiarazione di San Francisco (Dora), nel 2014 i bibliomet il\u00a0Manifesto di Leida. Fine riass. p.p. Gli NIH ne tengono conto e decidono&hellip; <a class=\"more-link\" href=\"https:\/\/archivio.ocasapiens.org\/index.php\/2015\/11\/09\/impatto-fattore-di\/\">Continua a leggere <span class=\"screen-reader-text\">Impatto, fattore di<\/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":[10,11],"tags":[804,998,2895,3252,5931],"class_list":["post-28895","post","type-post","status-publish","format-standard","hentry","category-clima","category-cronaca","tag-bibliometria","tag-breakthrough-awards","tag-gas-serra","tag-hadcrut","tag-riscaldamento-globale","entry"],"_links":{"self":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/28895","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=28895"}],"version-history":[{"count":2,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/28895\/revisions"}],"predecessor-version":[{"id":43812,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/posts\/28895\/revisions\/43812"}],"wp:attachment":[{"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/media?parent=28895"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/categories?post=28895"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/archivio.ocasapiens.org\/index.php\/wp-json\/wp\/v2\/tags?post=28895"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}