nous les 99%

… is at highest for 300m years: Overfishing and pollution are part of the problem, scientists say, warning that mass extinction of species may be inevitable – Published on The Guardian, by Fiona Harvey, Oct 3, 2013.

The oceans are more acidic now than they have been for at least 300m years, due to carbon dioxide emissions from burning fossil fuels, and a mass extinction of key species may already be almost inevitable as a result, leading marine scientists warned on Thursday.

An international audit of the health of the oceans has found that overfishing and pollution are also contributing to the crisis, in a deadly combination of destructive forces that are imperilling marine life, on which billions of people depend for their nutrition and livelihood.  Continuer la lecture de « Ocean Acidification Due To Carbon Emissions »

Published on Real-World Economics Review RWER, issue no 65, by Bryant Chen and Judea Pearl, September 27, 2013.

Abstract:

This report surveys six influential econometric textbooks in terms of their mathematical treatment of causal concepts. It highlights conceptual and notational differences among the authors and points to areas where they deviate significantly from modern standards of causal analysis.  We find that econonometric textbooks vary from complete denial to partial acceptance of the causal content of econometric equations and, uniformly, fail to provide coherent mathematical notation that istinguishes causal from statistical concepts. This survey also provides a panoramic view of the state of causal thinking in econometric education which, to the best of our knowledge, has not been surveyed before … // Continuer la lecture de « Regression and causation: a critical examination of six econometrics textbooks »

Publié dans Presse Citron, par AXEL-CERELOZ, 18 juillet 2013:

Quels sont les sujets autour desquels les contributeurs de Wikipédia se livrent une guerre de l’édition ? Une équipe de l’université d’Oxford a décidé de se pencher sur la question, elle nous livre un top dix de ces sujets controversés … //

… les voilà:  Continuer la lecture de « Top 10 des sujets les plus controversés sur Wikipédia »

Published on Russia Today RT, Oct 4, 2013.

Improved surveillance, takedown of opposition websites for “illegal content” and paid pro-government commentators are among the increasingly sophisticated tools used by authorities to restrict internet freedom, a new report claims … //

… Many countries are also moving from technological to legal solutions in their battle against freedom of expression.   Continuer la lecture de « Internet freedom on decline worldwide as governments tighten grip – report »

Published on Left Foot Forward, by YIGAL SHTAYIM, October 2, 2013.

… The group we created, ‘Marak Levinsky’ (Levinsky Soup), embedded itself more deeply into Israeli society and the mass media than the ‘Group of 400’, which has since been almost forgotten. The Marak Levinsky venture has become an emblem for social initiatives which empower citizens to stand up and do something. For more than 500 days we have managed daily shifts in the park to distribute food and clothing for hundreds of refugees who were unemployed and arrived from prison (where they were held after crossing the border into Israel) with few clothes and sometimes barefoot or only with flip-flops.  Continuer la lecture de « The formal political process isn’t always the best way to effect social change »