http://www.semanlink.net/tag/biologie Documents tagged with Biologie http://www.greenpeace.fr/zero-deforestation/index.php Greenpeace appelle à « zéro déforestation d'ici 2020 » 2010-06-17T01:55:53Z http://www.lemonde.fr/planete/article/2010/05/26/un-champignon-menace-la-production-mondiale-de-ble_1363533_3244.html Le blé représente 20 % de la ration alimentaire que la population mondiale consomme chaque jour 2010-05-28T00:53:15Z http://www.lemonde.fr/opinions/article/2010/05/25/guerre-aux-paysans-par-herve-kempf_1362750_3232.html "La biodiversité ? Il ne s'agit pas que de petits oiseaux, mais aussi du conflit violent et très humain entre la course au profit maximal et le souci de vivre dignement de son travail et de la terre." 2010-05-25T18:18:53Z http://news.bbc.co.uk/2/hi/science_and_environment/10132762.stm 2010-05-20T22:31:25Z http://www.lemonde.fr/opinions/article/2010/03/06/mal-a-l-europe-par-herve-kempf_1315314_3232.html Déni de démocratie, volonté de se plier aux desiderata des industriels, mépris implicite d'une agriculture qui ne serait pas productiviste : voilà ce qu'est cette décision. Mais il y a plus grave encore, qui touche à l'idéal européen lui-même. Pour continuer à imposer les OGM, la Commission veut que chaque Etat puisse choisir s'il les autorise ou pas chez lui. Cela revient à diviser l'Union, à la laisser aller à hue et à dia sur une question éminemment importante, qui n'est pas de simple convenance nationale, mais implique une politique agricole commune. 2010-03-07T22:53:47Z http://fleursenpoche.antiopa.info/fleursenpoche.htm 2010-02-23T10:55:49Z http://fr.wikipedia.org/wiki/Le_Monde_selon_Monsanto De la dioxine aux OGM, une multinationale qui vous veut du bien 2010-01-06T00:11:45Z http://blog-s.greenpeace.fr/uploads/2009/12/affiche.jpg 2009-12-19T11:47:59Z http://www.newscientist.com/article/dn17895-freeflying-cyborg-insects-steered-from-a-distance.html 2009-11-13T21:27:07Z http://www.lemonde.fr/planete/article/2009/07/27/ecologistes-et-agriculteurs-s-affrontent-durement-sur-la-deforestation-de-l-amazonie_1223095_3244.html#ens_id=1223174 "La rémunération du service environnemental est la solution à tous nos problèmes" 2009-07-28T11:42:39Z http://news.bbc.co.uk/earth/hi/earth_news/newsid_8127000/8127519.stm 2009-07-10T15:16:36Z http://news.bbc.co.uk/2/hi/science/nature/8027269.stm 2009-05-06T14:39:26Z http://news.bbc.co.uk/2/hi/science/nature/2975862.stm 2009-05-06T14:26:41Z http://www.nytimes.com/2008/07/31/opinion/31kristof.html Very often, one goose would bravely step away from the panicked flock and walk tremulously toward me. It would be the mate of the one I had caught, male or female, and it would step right up to me, protesting pitifully. It would be frightened out of its wits, but still determined to stand with and comfort its lover. 2009-01-16T01:07:59Z http://news.bbc.co.uk/2/hi/science/nature/7753267.stm 2009-01-07T18:15:11Z http://www.lemonde.fr/planete/article/2008/12/27/la-technique-de-l-insecte-sterile-va-etre-testee-pour-lutter-contre-le-paludisme-et-le-chikungunya_1135695_3244.html#ens_id=1135776 2008-12-27T20:44:01Z http://rogeralsing.com/2008/12/07/genetic-programming-evolution-of-mona-lisa/ 2008-12-10T14:56:07Z http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/2/hi/science/nature/7740484.stm?ad=1 IBM has announced it will lead a US government-funded collaboration to make electronic circuits that mimic brains. 2008-11-24T13:35:09Z http://www.silicon.com/silicon/management/itpro/0,39024675,39345605,00.htm Ray Kurzweil, inventor and futurist on the Turing Test, human vs machine intelligence, why being funny is clever, and the dangers of advanced technologies... 2008-11-21T23:43:55Z http://www.apesmanifesto.org Tropical forests are disappearing at an excessive speed and with them the last populations of great apes. All specialists are unanimous: if we do nothing gorillas, chimpanzees and bonobos will have disappeared by the middle of the 21st century. The situation of orangoutans is even more dramatic; in 20 years time, they might only exist in zoos. Today, it is important to become active in order to stop this Ecocide! We, citizens of the Earth, ask our governments and international authorities to accept as their superior duty to save and protect primates. 2008-10-22T20:00:57Z http://www.infosdelaplanete.org/4447/mali-coupe-de-bois-contre-hopital-et-3e-pont.html 2008-09-24T23:02:07Z http://blog.wired.com/wiredscience/2008/09/biologists-on-t.html Szostak's protocells are built from fatty molecules that can trap bits of nucleic acids that contain the source code for replication. Combined with a process that harnesses external energy from the sun or chemical reactions, they could form a self-replicating, evolving system that satisfies the conditions of life, but isn't anything like life on earth now, but might represent life as it began or could exist elsewhere in the universe. 2008-09-10T15:45:47Z http://www.spectrum.ieee.org/singularity The singularity: when machines become conscious 2008-08-17T11:53:51Z http://www.infosdelaplanete.org/4199/tendance-ces-milliardaires-qui-croient-sauver-la-planete.html La propriété privée est désormais le moyen retenu pour empêcher les promoteurs, l’industrie ou la négligence de ravager la nature. 2008-08-15T11:49:41Z http://www.tela-botanica.org/ 2008-06-30T21:47:09Z http://en.wikipedia.org/wiki/List_of_animals_by_number_of_neurons 2008-06-22T02:01:31Z http://www.youtube.com/watch?v=y7WrYSwMHKA 2008-06-21T00:21:58Z http://www.newscientist.com/channel/life/dn14094-bacteria-make-major-evolutionary-shift-in-the-lab.html 2008-06-12T23:32:15Z http://www.w3.org/TR/2008/NOTE-hcls-senselab-20080604/ 2008-06-12T08:35:10Z http://www.w3.org/TR/2008/NOTE-hcls-kb-20080604/ The prototype we describe is a biomedical knowledge base, constructed for a demonstration at Banff WWW2007 , that integrates 15 distinct data sources using currently available Semantic Web technologies such as the W3C standard Web Ontology Language [OWL] and Resource Description Framework [RDF]. This report outlines which resources were integrated, how the knowledge base was constructed using free and open source triple store technology, how it can be queried using the W3C Recommended RDF query language SPARQL [SPARQL], and what resources and inferences are involved in answering complex queries. While the utility of the knowledge base is illustrated by identifying a set of genes involved in Alzheimer's Disease, the approach described here can be applied to any use case that integrates data from multiple domains. 2008-06-12T08:29:11Z http://news.bbc.co.uk/2/hi/science/nature/7324564.stm 2008-04-10T10:35:02Z http://saturn.jpl.nasa.gov/news/features/feature20080326.cfm In recent years, life forms have been found on Earth that thrive in places where the sun doesn't shine and oxygen is not present because no photosynthesis takes place... There are three such ecosystems found on Earth that would conceivably be a basis for life on Enceladus. Two are based on methanogens, which belong to an ancient group related to bacteria, called the archaea -- the rugged survivalists of bacteria that thrive in harsh environments without oxygen. Deep volcanic rocks along the Columbia River and in Idaho Falls host two of these ecosystems, which pull their energy from the chemical interaction of different rocks. The third ecosystem is powered by the energy produced in the radioactive decay in rocks, and was found deep below the surface in a mine in South Africa. 2008-04-07T21:00:32Z http://www.wired.com/science/discoveries/news/2008/01/synthetic_genome 2008-01-25T21:38:25Z http://www.wired.com/science/planetearth/news/2008/01/gm_insects 2008-01-25T21:32:22Z http://en.wikipedia.org/wiki/Tulip_mania 2008-01-25T15:05:42Z http://www.apollon.uio.no/vis/art/2007_4/Artikler/The_Tree_of_Life 2008-01-25T08:43:48Z http://www.newyorker.com/reporting/2007/12/03/071203fa_fact_specter Why are evolutionary biologists bringing back extinct deadly viruses? 2007-12-10T15:17:32Z http://www.mkbergman.com/?p=370 2007-11-14T14:09:25Z http://www.gbif.org/ 2007-11-14T13:49:23Z http://www.bioshare.net/News/NEWS1178699092 2007-11-14T13:47:33Z http://www.bioshare.net/ Collaborative biodiversity portal 2007-11-14T13:44:47Z http://commonground.ca/iss/0401150/percy_schmeiser.shtml 2007-10-23T00:48:13Z http://en.wikipedia.org/wiki/Percy_Schmeiser 2007-10-23T00:24:33Z http://medias.lemonde.fr/mmpub/edt/doc/20071004/963161_avis100.pdf Le CCNE attire l'attention sur la dimension profondément symbolique dans la société de toute mesure qui demande à la vérité biologique d'être l'ultime arbitre dans des questions qui touchent à l'identité sociale et culturelle. Elle conduirait furtivement à généraliser de telles identifications génétiques, qui pourraient se révéler à terme attentatoires aux libertés individuelles. Elle risquerait d'inscrire dans l'univers culturel et social la banalisation de l'identification génétique avec ses risques afférents de discrimination. <br/>Le CCNE redoute les modalités concrètes d'application dans des réalités culturelles très différentes des nôtres. Nos concitoyens comprendraient peut-être mieux l'exacte réalité de tels enjeux s'ils étaient confrontés à des exigences analogues lors de leur propre demande de visa. 2007-10-04T22:17:44Z http://hugues.blogs.com/commvat/2007/09/gntique-adminis.html L'introduction des tests ADN pour l'établissement d'actes administratifs n’est pas seulement contraire au droit ou au sens commun. C'est un vrai danger démocratique. 2007-09-25T22:14:55Z http://via-sahel-toulouse.over-blog.com/article-967205-6.html Technique de plantation : Effectuer la plantation deuxième quinzaine de juillet afin que les arbres puissent survivre sans ou presque sans arrosage ultérieur. Il faut toutefois être très présent les premières semaines pour éviter l’assèchement au moment du repiquage. La croissance de l’arbre sera par ailleurs très influencée par les soins ultérieurs reçus par l’arbre (désherbage, paillage, arrosage, engrais). Faire un trou de 60 cm x 60 cm et 50 cm de profondeur. Mettre au fond la terre qui était au dessus et rajouter si possible du fumier. Couper la partie inférieure du pot inciser la partie latérale du pot. Insérer le pot dans le trou sans retirer le plastique. Mettre un peu de terre puis retirer le plastique. Mettre encore de la terre puis tasser fermement. Pour améliorer le taux de survie, on peut planter une dizaine de tiges de mil séchées autour du plant, ou une gaine IRRIGASC. On peut également couper un partie des feuilles pour limiter l’évapotranspiration et ne garder que la partie supérieure. Dans le même objectif, recouvrir le sol d’herbes ou de tiges de mil a pied de l’arbre (paillage). Une famille peut au maximum s’occuper de 100 arbres, étant donné qu’elle doit dans le même temps être dans les champs de mil. Si les arbres sont espacés de 10 m, la superficie forestière est donc de 100m x 100 m = 1 Hectare pour 100 arbres. 2007-09-20T22:08:15Z http://www.rochester.edu/news/show.php?id=2963 Bacterial to Animal Gene Transfers Now Shown to be Widespread, with Implications for Evolution and Control of Diseases and Pests 2007-09-13T22:09:27Z http://www.afrik.com/article4010.html Comédie gabonaise "Ce n'est pas parce que l'éléphant est maigre que ses couilles ne remplissent pas une calebasse." Une très bonne rengaine accompagne le film : "My Son", de Wasis Diop 2007-08-24T23:37:52Z http://www.lefigaro.fr/reportage/20070814.FIG000000020_pillages_chinois_en_foret_tropicale.html 2007-08-21T22:25:11Z http://environment.newscientist.com/article.ns?id=dn12433 2007-08-08T17:35:00Z http://news.nationalgeographic.com/news/2005/08/photogalleries/africa/photo8.html Hundreds of hippopotamuses crowd into what is left of the Katuma River in Tanzania's Katavi National Park. 2007-07-08T02:42:33Z http://www.pbs.org/wgbh/nova/bonediggers/evolution.html Why did Australia get a preponderance of pouched and egg-laying mammals? And, at the same time, precious few of the kind of mammal that dominates every other land in the world? <br/>Today no monotremes exist outside of Australia (and New Guinea), and no placental mammals that didn't fly or swim there—for example, bats or dugongs—exist in Australia except for rodents (which arrived only about five million years ago) and mammals that were introduced by people (who arrived by 60,000 years ago). 2007-05-23T01:18:38Z http://news.bbc.co.uk/1/hi/sci/tech/6661987.stm An extraordinarily diverse array of marine life (more than 700 new species) has been discovered in the deep, dark waters around Antarctica. 2007-05-20T13:16:53Z http://www.biodiversitylibrary.org/About.aspx Ten major natural history museum libraries, botanical libraries, and research institutions have joined to form the Biodiversity Heritage Library Project. The group is developing a strategy and operational plan to digitize the published literature of biodiversity held in their respective collections. This literature will be available through a global “biodiversity commons.” 2007-05-11T00:19:59Z http://www.eol.org/ 2007-05-11T00:12:12Z http://novaspivack.typepad.com/nova_spivacks_weblog/2006/11/minding_the_pla.html long term vision of the evolution of the web and the world by Nova Spivack, who runs a Semantic Web startup company Radar Networks. http://www.mindingtheplanet.net 2006-11-07 http://news.bbc.co.uk/1/hi/sci/tech/5245950.stm US researchers have taken a mouse back in time some 500 million years by reversing the process of evolution. 2006-08-20 http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/1/hi/sci/tech/4505516.stm Scientists have identified a major climate crisis that struck Africa about 70,000 years ago and which may have changed the course of human history. 2006-07-20 http://www.livescience.com/scienceoffiction/060707_pacman_insects.html Remember packman? "Instead of computer code, I wanted to have animals controlling the ghosts. To enable this, I built a real maze for the animals to walk around in, with its proportions and layout matching the maze of the computer game. The position of the animals in the maze is detected using colour-tracking via a camera, and linked to the ghosts in the game. This way, the real animals are directly controlling the virtual ghosts." Crickets' tendency to flee from vibration (a sign of approaching predators) allows human players to interact with them. 2006-07-14 http://www.lemonde.fr/web/imprimer_element/0,40-0@2-3244,50-784810,0.html 2006-06-19 http://www.nature.com/news/2006/060605/full/060605-7.html New studies of the Strelley Pool stromatolites in Autralia, which are more than 3.4 billion years old, suggest that they were shaped by living organisms. 2006-06-08 http://science.monstersandcritics.com/news/printer_1168946.php 2006-06-06 http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/1/hi/sci/tech/5036618.stm Eight previously unknown invertebrate creatures have been discovered in a cave in central Israel. The largest is a white shrimp-like crustacean. Another resembles a species of scorpion and is blind. The cave, near the city of Ramle, contains a lake and was uncovered during drilling at a quarry. Scientists say it is a unique ecosystem that has been sealed off from the rest of the world for five million years and could contain other ancient lifeforms. 2006-06-06 http://www.calacademy.org/exhibits/xtremelife/life_on_earth.php 2006-05-23 http://www.calacademy.org/ Natural History Museum 2006-05-23 http://contrecourant.france2.fr/article.php3?id_article=169 Documentaire accusant un vaccin contre la polio, fabriqué avec des reins de chimpanzés et utilisé au Congo, d'être à l'origine de la transmission du sida à l'homme. Le film est effrayant - ce qui ne veut pas dire qu'il ait raison. 2006-05-17 http://news.bbc.co.uk/1/hi/sci/tech/4986668.stm The first sequences of nuclear DNA to be taken from a Neanderthal have been reported at a US science meeting. 2006-05-16 http://news.bbc.co.uk/1/hi/sci/tech/4940654.stm A mathematical analysis of the human genome suggests that so-called "junk DNA" might not be so useless after all. 2006-05-05 http://news.bbc.co.uk/1/hi/sci/tech/4857868.stm 2006-04-09 http://www.nytimes.com/2006/04/07/science/07evolve.html?_r=1&oref=slogin By reconstructing ancient genes from long-extinct animals, scientists have for the first time demonstrated the step-by-step progression of how evolution created a new piece of molecular machinery by reusing and modifying existing parts. 2006-04-09 http://news.bbc.co.uk/2/hi/americas/4808342.stm 2006-03-18 http://www.sciam.com/print_version.cfm?articleID=0005FB4D-6102-140F-A10283414B7F0000 First empirical demonstration in higher primates that evolution may often work through changes in gene regulation 2006-03-11 http://www.pbs.org/wgbh/nova/sciencenow/dispatches/050707.html 2005-11-02 http://www.pbs.org/wgbh/nova/sciencenow/dispatches/050721.html 2005-11-02 http://species.wikipedia.org/wiki/Main_Page Wikispecies is free. Because life is public domain! 2005-10-11 http://www.fortune.com/fortune/print/0,15935,1101810,00.html Twenty-five years ago a law known as Bayh-Dole spawned the biotech industry. It made lots of university scientists fabulously rich. It was also supposed to usher in a new era of innovation. So why are medical miracles in such short supply? 2005-09-15 http://news.bbc.co.uk/1/hi/health/4222460.stm 2005-09-12 http://news.bbc.co.uk/1/hi/health/4228712.stm 2005-09-12 http://mednews.stanford.edu/stanmed/2005winter/rna.html 2005-09-12 http://news.bbc.co.uk/1/hi/sci/tech/4202734.stm 2005-09-05 http://news.bbc.co.uk/1/hi/sci/tech/4167040.stm Most GM plants contain a gene for antibiotic resistance, but there are fears this could transfer to bacteria, making them immune to common drugs. Researchers from Tennessee say their new method carries no such risk. 2005-08-22 http://news.bbc.co.uk/1/hi/sci/tech/4166076.stm 2005-08-22 http://wiki.tela-botanica.org/outildeterminationplantes/wakka.php?wiki=SpecificationsProjets 2005-06-10 http://www.newscientist.com/article.ns?id=dn7470&print=true 2005-06-06 http://newsvote.bbc.co.uk/mpapps/pagetools/print/news.bbc.co.uk/1/hi/health/4579207.stm A bacterium found 300 metres below sea could be used to fight the superbug MRSA, scientists believe. 2005-05-25 http://www.wollemipine.com 2005-05-12 http://www.pbs.org/kcet/shapeoflife/index.html A revolutionary eight-part television series that reveals the dramatic rise of the animal kingdom through the breakthroughs of scientific discovery. 2005-03-07 http://kleenexsosforet.com 2005-03-03