Biologie
83 Documents
- Fleurs en poche : identifiez les fleurs sauvages avec votre iPhone
2010-02-23
- Le Monde selon Monsanto
De la dioxine aux OGM, une multinationale qui vous veut du bien
2010-01-06
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Greenpeace: zéro déforestation d'ici 2020
2009-12-19
- Free-flying cyborg insects steered from a distance - tech - 01 October 2009 - New Scientist
2009-11-13
- Ecologistes et agriculteurs s'affrontent durement sur la déforestation de l'Amazonie
"La rémunération du service environnemental est la solution à tous nos problèmes"
2009-07-28
- BBC - Earth News - Ant mega-colony takes over world
2009-07-10
- BBC NEWS | Africa's genetic secrets unlocked
2009-05-06
- BBC NEWS | Science/Nature | When humans faced extinction
2009-05-06
- A Farm Boy Reflects
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.
2009-01-16
- BBC NEWS | Science & Environment | Crop diversity: Eat it or lose it
2009-01-07
- La technique de l'insecte stérile va être testée pour lutter contre le paludisme et le chikungunya
2008-12-27
- Genetic Programming: Evolution of Mona Lisa « Roger Alsing Weblog
2008-12-10
- IBM plans 'brain-like' computers
IBM has announced it will lead a US government-funded collaboration to make electronic circuits that mimic brains.
2008-11-24
- Kurzweil: "Technology is a double-edged sword"
Ray Kurzweil, inventor and futurist on the Turing Test, human vs machine intelligence, why being funny is clever, and the dangers of advanced technologies...
2008-11-21
- Manifesto for Apes and nature [mAn]
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.
2008-10-22
- Infos de la Planète - Mali: Coupe de bois contre hôpital et 3e pont ? - Les Echos (Mali) - 2008-09-16
2008-09-24
- Biologists on the Verge of Creating New Form of Life | Wired Science from Wired.com
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.
2008-09-10
- IEEE Spectrum: Special Report: The Singularity
The singularity: when machines become conscious
2008-08-17
- Infos de la Planète - Tendance : Ces milliardaires qui croient sauver la planète… - The Guardian (Royaume-Uni) - 2008-02-13
La propriété privée est désormais le moyen retenu pour empêcher les promoteurs, l’industrie ou la négligence de ravager la nature.
2008-08-15
- Tela Botanica - Le réseau de la botanique francophone
2008-06-30
- List of animals by number of neurons - Wikipedia, the free encyclopedia
2008-06-22
- Polar bear executed in Iceland
2008-06-21
- Bacteria make major evolutionary shift in the lab -New Scientist
2008-06-12
- Experiences with the conversion of SenseLab databases to RDF/OWL
2008-06-12
- A Prototype Knowledge Base for the Life Sciences
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.
2008-06-12
- BBC NEWS | Science/Nature | Secret 'dino bugs' revealed
2008-04-10
- Cassini-Huygens: Enceladus: A Perspective on Life on Enceladus: A World of Possibilities
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.
2008-04-07
- Scientists Build First Man-Made Genome; Synthetic Life Comes Next
2008-01-25
- Engineered Mosquitoes Could Wipe Out Dengue Fever
2008-01-25
- Tulip mania - Wikipedia
2008-01-25
- Apollon: The Tree of Life Has Lost a Branch
2008-01-25
- Annals of Science: Darwin’s Surprise: Reporting & Essays: The New Yorker
Why are evolutionary biologists bringing back extinct deadly viruses?
2007-12-10
- The Encyclopedia of Life and Linking Open Data » AI3:::Adaptive Information
2007-11-14
- GBIF portal: Home
2007-11-14
- Bioshare: A home page for every species
2007-11-14
- Bioshare: Home
Collaborative biodiversity portal
2007-11-14
- Common Ground - January 2004 - Percy Schmeiser vs. Monsanto by Percy Schmeiser
2007-10-23
- Percy Schmeiser - Wikipedia, the free encyclopedia
2007-10-23
- Rapport du Comité consultatif national d'éthique sur l'amendement ADN
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.
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.
2007-10-04
- www.com-vat.com: Génétique administrative : de Courteline à Orwell
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.
2007-09-25
- Reforestation en Pays dogon
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.
2007-09-20
- One Species' Genome Discovered Inside Another's - University of Rochester Press Releases
Bacterial to Animal Gene Transfers Now Shown to be Widespread, with Implications for Evolution and Control of Diseases and Pests
2007-09-13
- Les couilles de l'éléphant
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
2007-08-24
- Pillages chinois en forêt tropicale
2007-08-21
- Eight-million-year-old bug is alive and growing - New Scientist Environment
2007-08-08
- National Geographic News Photo Gallery: Megaflyover: Documenting Africa's Last Wild Places
Hundreds of hippopotamuses crowd into what is left of the Katuma River in Tanzania's Katavi National Park.
2007-07-08
- NOVA | Portrait of Australia's unique evolutionary history.
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?
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).
2007-05-23
- BBC NEWS | Antarctic 'treasure trove' found
An extraordinarily diverse array of marine life (more than 700 new species) has been discovered in the deep, dark waters around Antarctica.
2007-05-20
- Biodiversity Heritage Library
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.”
2007-05-11
- Encyclopedia of Life
2007-05-11
- Minding the Planet: Minding The Planet -- The Meaning and Future of the Semantic Web
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
- BBC NEWS | Evolution reversed in mice
US researchers have taken a mouse back in time some 500 million years by reversing the process of evolution.
2006-08-20
- BBC NEWS | Science/Nature | Ancient drought 'changed history'
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
- LiveScience.com - Live Insects Challenge Humans in Bizarre Computer Game
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
- Une colonie de cafards domptée par un mini-robot
2006-06-19
- Complex ecosystems arrived early
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
- Gigantic meteor crater found in Antarctica
2006-06-06
- BBC NEWS - Unknown creatures found in cave
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
- Extreme Life on Earth (California Academy of Sciences - Natural History)
2006-05-23
- California Academy of Sciences
Natural History Museum
2006-05-23
- Les origines du Sida
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
- BBC NEWS - Neanderthal yields nuclear DNA
The first sequences of nuclear DNA to be taken from a Neanderthal have been reported at a US science meeting.
2006-05-16
- BBC NEWS - Salvage prospect for 'junk' DNA
A mathematical analysis of the human genome suggests that so-called "junk DNA" might not be so useless after all.
2006-05-05
- BBC NEWS | 'More genes' needed to make life
2006-04-09
- Study, in a First, Explains Evolution's Molecular Advance - New York Times
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
- BBC NEWS-Pentagon plans cyber-insect army
2006-03-18
- Scientific American: Separation of Man and Ape Down to Gene Expression
First empirical demonstration in higher primates that evolution may often work through changes in gene regulation
2006-03-11
- NOVA | scienceNOW | Dispatches: What We're Thinking About: Keep It Very Simple | PBS
2005-11-02
- NOVA | scienceNOW | Dispatches: What We're Thinking About: What Is Life? | PBS
2005-11-02
- Main Page - Wikispecies
Wikispecies is free. Because life is public domain!
2005-10-11
- Fortune.com: The Law of Unintended Consequences
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
- BBC NEWS - Health - 'Proof' our brains are evolving
2005-09-12
- BBC NEWS - Concern over three-parent embryo
2005-09-12
- Secret life of RNA- Stanford Medicine Magazine - Stanford University School of Medicine
2005-09-12
- BBC NEWS - Apes 'extinct in a generation'
2005-09-05
- BBC NEWS | Science/Nature | Scientists hope to ease GM fears
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
- BBC NEWS | Ocean bug has 'smallest genome'
2005-08-22
- OutilDeterminationPlantes:SpecificationsProjets
2005-06-10
- Mission to build a simulated brain begins
2005-06-06
- BBC NEWS - Deep sea weapon against superbug
A bacterium found 300 metres below sea could be used to fight the superbug MRSA, scientists believe.
2005-05-25
- WollemiPine.com - the official home of the Wollemi Pine.
2005-05-12
- The shape of life
A revolutionary eight-part television series that reveals the dramatic rise of the animal kingdom through the breakthroughs of scientific discovery.
2005-03-07
- Kleenex rase nos forêts boréales !
2005-03-03
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