KON-TIKI Trailer #2 HD (English subtitles) Digital Magazine software create digital online publications. BioPortfolio - the Biotechnology, Pharmaceutical, Life-Science and Healthcare Portal. HTwins.net. 11 Myths About Agriculture in Africa. Archéologues de l'ADN. Did Leonardo da Vinci Copy His Famous 'Vitruvian Man'?
Leonardo da Vinci's drawing of a male figure perfectly inscribed in a circle and square, known as the "Vitruvian Man," illustrates what he believed to be a divine connection between the human form and the universe. Beloved for its beauty and symbolic power, it is one of the most famous images in the world. However, new research suggests that the work, which dates to 1490, may be a copy of an earlier drawing by Leonardo's friend. Another illustration of a divinely proportioned man—the subject is Christ-like, but the setting is strikingly similar to Leonardo's—has been discovered in a forgotten manuscript in Ferrara, Italy. Both drawings are depictions of a passage written 1,500 years earlier by Vitruvius, an ancient Roman architect, in which he describes a man's body fitting perfectly inside a circle (the divine symbol) and inside a square (the earthly symbol).
Other scholars find the arguments convincing. Leonardo's is also more faithful to the text, she explained. One thing is certain. Université universelle. Welcome to NCEAS | NCEAS. Une histoire de la découverte et de la lutte contre le trou de la couche d'ozone. InriaChannel's Channel. Alien Astronomer's View of Earth. Searchers for habitable planets in the Milky Way have found a new signal to serach for. According to research led by astronomers from the Instituto de Astrofisica de Canarias (IAC), clouds can provide enough information to determine the period of rotation of a planet and deduce the variability of its atmosphere. Owing to the role played by clouds, which are so commonplace on Earth but unique in the Solar System for their dynamism, it could suffice scientists to analyse the brightness of a planet to ascertain the length of its day and determine whether or not there is water on its surface.
From data obtained over two decades (1984-2005) by a network of meteorological satellites from all over the world, astronomers Enric Pallé, Pilar Monañés-Rodríguez and Manuel Vázquez from the IAC, together with Eric Ford from the University of Florida and Sara Seager of the Massachusetts Institute of Technology, have produced a computer-generated model of the Earth's brightness. Biology: the technology of this century. Better graphics for all… Systems Biology fellows at UCSF. Systems Biology Fellows The Center for Systems and Synthetic Biology at UCSF invites applications for Systems Biology Fellows. We seek exceptionally creative and independent individuals with backgrounds in engineering, physics, mathematics and computer science, who are dedicated to applying quantitative approaches to the study of complex biological systems.
The Fellows are a central component of the NIGMS-funded Center for Systems and Synthetic Biology, which aims to break down boundaries in establishing new approaches to biology, as well as new applications of biology. Fellows will be free to pursue their own research interests and/or to collaborate with any UCSF faculty of interest. UCSF and QB3 provide an interdisciplinary and highly interactive collegial environment. The Center for Systems and Synthetic Biology is home to a vibrant scientific community pursuing cutting-edge research in quantitative biology ( Like this: Like Loading...
Designed by iGEM: implemented by nature. I’ve been thinking recently about this year’s iGEM Jamboree, which is coming up soon. For those of you who don’t know, iGEM, the international Genetically Engineered Machines competition, challenges undergraduate students and high school students to make useful machines out of biological parts and implement them in living cells. The ideas are always interesting — usually somewhere between creative and wild, actually — and the Jamboree is where the different teams (165 of them this year) share their results, celebrate the new parts they’ve characterized, and generally have a good time. iGEM has turned out to be a major way for students from engineering and the quantitative sciences to get their first taste of biology. iGEMmers are always on the lookout for biological modules that can be re-used for other purposes, and quorum sensing is something of a favorite.
The system that produces bacterial gas vesicles that allow bacteria to float also seems to be ripe for re-engineering. Like this: MOVIECLIPS: Movie Trailers, Previews, Clips of Old, New & Upcoming Films. New Archaeocetes from Peru Are the Oldest Fossil Whales from South America | The Ocean Portal | Smithsonian Institution. The evolution of whales represents one of the great stories in macroevolution. It's a narrative that has mostly benefitted from an extraordinary series of fossils recovered from rocks around the world, including challenging field areas in Egypt, Pakistan, and India. Over the past 30 years, the diligent work of many paleontologists has revealed a sequence of evolutionary transformations, between ~52 to 40 million years ago, which illuminate how the ancestors of today's whales adapted to life in the water from their terrestrial ancestors.
Interestingly, the near entirety of the fossil record of these early whales (also known as "archaeocetes") is documented from the Northern Hemisphere. In part to remedy this situation, starting in 2006, George Mason University professor Mark D. Uhen and I, along with other collaborators, conducted fieldwork in rocks of the Pisco Basin of Peru (below, left). Nicholas D. Pyenson / Smithsonian Institution Editor's Note: Dr. Lindau Nobel Community | Nobel Questions – Lindau Answers. Mobilisation autour de la campagne "Aidons l'argent" Paralipomènes. Europa : CORDIS : Search : Simple search : News. Europa : CORDIS : Search : Simple search : News. The Layered Earth. Frontier living with lipids. The completion of stage 1 of the human genome project a bit over 10 years ago marked the beginning, not the end, of an era. It didn’t mean that we can stop hunting for the molecular components involved in biological behavior, or in disease; there’s still plenty to do.
But now that we believe we have a handle on a substantial fraction of what’s in the genome, it’s suddenly possible to imagine obtaining similarly comprehensive datasets for all the other components involved in biology. Lots of progress is being made in working down the hierarchy of the “central dogma”, from the information encoded in DNA to making RNA to making protein. After making comes regulating, though, and there we have only made a beginning. There are many more-or-less empty spaces on the biological map, decorated in some places with the biological equivalent of “here be dragons”. One of those mostly empty spaces represents our current understanding of the roles of lipids in biology. We know some things. Like this: Voyage To Discovery. Wired.com.