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The National Academies

The National Academies
In the News: Your Inner Fish – A Scientific Adventure Have you ever wondered why people look the way they do? Why our hands and feet have five digits instead of six? Why we stand on two legs instead of four? Follow that adventure now on PBS Darwin's Insights Continue to Inspire the Academy's Work The ideas of Charles Darwin and the concept of evolution by natural selection continue to have a profound influence on modern biology – they permeate almost every area of scientific exploration. In 2009 the National Academy of Sciences joined many other organizations in the international scientific community to celebrate the 'Year of Science,' which commemorated Darwin’s 200th birthday and the 150th anniversary of the publication of his masterwork On the Origin of Species. In 2010, the National Academy of Sciences awarded its most prestigious award, the Public Welfare Medal, to Dr. Related:  bksubbarao

Archaeology, Anthropology, Ancient Civilizations AIBS Education Office | Resources for Teaching and Learning Biology General Biology Nature of Science EvolutionSustainability General Biology: features issues-based articles written by prominent scientists, accompanying lesson ideas, and related teaching resources for high school and undergraduate biology educators. AAAS Science NetLinks is a guide to standards-based Internet experiences for students. provides a searchable database of resources from BEN Collaborative partner organizations such as AIBS, Ecological Society of America, American Society for Microbiology, and Botanical Society of America. BioQUEST Curriculum Consortium promotes curriculum innovation by serving a national role as a networking resource for individuals to share, distribute, and enhance cooperation among on-going and future biology education development projects. Nature of Science: Evolution and the Nature of Science Institute. Evolution: - Evolution. Sustainability: - environment, biodiversity, genomics, biot National Museum of Natural History Unearthed: NMNH Cupid Love is in the air at the National Museum of Natural History! Our scientists are helping species look for love in this series of “dating profiles” to celebrate Valentine’s Day. Will #NMNHcupid help them find their one and only? What I look like through a microscope. Screen name: BlobSticky&Hairy Species: Trichoplax adhaerens Sex: Extant/asexually prodigious/sexuality? Location: Any warm sea in the ocean will do nicely. Height: Significantly less than 1 mm tall. Diet: I like to creep over algae and other small prey items and digest them right where I find them. My self summary Run run run as fast as you’re able, you’ll want to avoid me. What I'm doing with my life You can think of me as sort of like the blob. I'm really good at I am spectacular at dividing my body into two in order to increase my numbers. Nice video from the lab of Bernd Schierwater showing how I divide to reproduce asexually. The first thing people usually notice about me To be honest, I don’t get noticed much. Favorite food

Un nouveau pas vers la connaissance universelle (2) - Miscellané Après la mise en ligne récemment par le MIT de l'intégralité de ses cursus gratuitement, et après le projet Wikipédia bien sûr, un autre grand projet est lancé, qui intéressera essentiellement ceux qui travaillent dans le monde du vivant puisqu'il ne se propose pas moins que de constituer une encyclopédie des espèces animales connues - disparues ou contemporaines - en ligne et encore une fois gratuite. Le projet Encyclopedia Of Life a pour origine des universitaires américains de la côte Est, le financement d'une fondation et de dons, tout est clairement expliqué dans leur FAQ. Le projet se veut collaboratif, mais exclusivement créé, vérifié et mis à jour par des scientifiques volontaires, permettant par rapport à Wikipédia une précision et une justesse quasi totale des informations disponibles sur les diverses espèces. Encore une fois, la France est complètement larguée, par manque de volonté mais aussi de réactivité dans un domaine ou tout est en train de se faire.

Follow Friday: Exploring the Wild World of Botany Astrophysicists get to study the whole wide universe. Evolutionary biologists get to study the very origins of life. Botanists, they get…plants. And indeed, interest in botany is declining. JSTOR Global Plants Twitter feed Botanists stare at dead leaves, petals, and seeds all day, which doesn’t sound like an exciting way to pass the time. JSTOR Global Plants’ Twitter feed is also packed with stories and photos that’ll show you how vital—and cool—botany is. The PlantNet App Calling all citizen scientists! Science writer Jennifer Frazer’s blog and Twitter feed On Twitter and on her Artful Ameoba blog over at Scientific American, Jennifer Frazer marvels at the plants, fungi, and tiny creatures that form the backbone of our world. Global Forest Watch Trees sustain all life on earth, from the animals and insects that live in them to the humans inhabiting megacities. Go Back to Top.

Cartes d' Europe: atlas géographique et historique accompagné de Marxism Marxism is a worldview and a method of societal analysis that focuses on class relations and societal conflict, that uses a materialist interpretation of historical development, and a dialectical view of social transformation. Marxist methodology uses economic and sociopolitical inquiry and applies that to the critique and analysis of the development of capitalism and the role of class struggle in systemic economic change. In the mid-to-late 19th century, the intellectual tenets of Marxism were inspired by two German philosophers: Karl Marx and Friedrich Engels. Marxist analyses and methodologies have influenced multiple political ideologies and social movements. Marxism encompasses an economic theory, a sociological theory, a philosophical method, and a revolutionary view of social change.[1] Marxism builds on a materialist understanding of societal development, taking as its starting point the necessary economic activities required to satisfy the material needs of human society. V.

Maps The section of the Sourcebook is devoted to copy-permitted maps and images. These images can be used in teaching, and in web page creation. The source of images is indicated for each image. © This text is copyright. The specific electronic form, and any notes and questions are copyright. Permission is granted to copy the text, and to print out copies for personal and educational use. If any copyright has been infringed, this was unintentional.

530 Free Online Courses from Top Universities Take online courses from the world's top universities for free. Below, you will find 1,500 online courses from universities like Stanford, Yale, MIT, Harvard, Oxford and more. You can use this collection of online courses to learn everything you want--from history, philosophy and literature, to physics, biology, psychology, and computer science. Note: This page includes a lot of Massive Open Online Courses (MOOCs). Humanities & Social Sciences Art & Art History Courses Italian Renaissance - Free Online Course - Dr. Classics Courses Communication Courses Economics & Finance Courses Bookmark our collection of free online courses in Economics. Education Courses Foundations of Virtual Instruction - Massive Open Online Course (MOOC) - UC IrvineHow to Teach Online: The Essentials - Free Online Video - Stanford Online High SchoolLearning to Teach Online - Massive Open Online Course (MOOC) - The University of New South Wales Film Courses Food Courses Geography Courses Health Courses

Le Mag Voyages vous emmène à l'Île d'Aix C'est une toute petite île coincée entre Ré et Oléron, en Charente-Maritime Il n'y a pas de voitures, l'Île est battue par les vents mais largement ensoleillée. Vous en faites le tour en quelques heures. Respectueuse de l'environnement, Aix se trouve sur les grandes voies de migration des oiseaux. Des monuments historiques comme le fort Liédot racontent l'histoire de France. LÎle fut aussi la dernière demeure de Napoléon avant son départ pour Sainte-Hélène. Le site officiel de l'Île d'AixLe site du tourisme dans le pays rochefortaisLes horaires de bac pour l'Île d'AixDes photos de l'Île d'Aix Une idée de séjour insolite La "Casa Anus" en Belgique

Aging Brains Aren’t Necessarily Declining Brains For years, conventional wisdom held that growing older tends to be bad news for brains. Past behavioral data largely pointed to loss in cognitive – that is, thinking – abilities with age, including poorer memory and greater distractibility. Physical measures of brain structure also showed atrophy, or loss of volume, in many regions with age. Watching older brains at work Enter cognitive neuroscience, a subfield of psychology that incorporates methods from neuroscience. It uses measures of brain activity to understand human thought. Using cognitive neuroscience methods to study aging has unexpectedly revealed that, contrary to previous thought, aging brains remain somewhat malleable and plastic. fMRI scan shows areas of brain more active than others. Researchers investigate which parts of the brain are engaged during different tasks using methods such as functional magnetic resonance imaging, which measures blood flow to various areas of the brain while active. External stimulation

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