ScienceBlogs - Where the world turns to talk about science. SITES. Neurocientíficos reconocen la conciencia en mamíferos y pájaros. El neurocientífico canadiense Philip Low, ganó prominencia en la prensa científica después de presentar un proyecto con el físico Stephen Hawking, de 70 años. Low quiere ayudar a Hawking, que está completamente paralizado desde hace 40 años a causa de una enfermedad degenerativa, y es por ese motivo que sólo puede comunicarse con la mente. Los resultados del estudio fueron revelados el sábado pasado en una conferencia en Cambridge. Sin embargo, el propósito principal de la reunión era otro. En ella, los neurocientíficos de todo el mundo firmaron una petición afirmando que todos los mamíferos, aves y otras criaturas, incluyendo pulpos; tienen conciencia. Stephen Hawking estuvo presente en la cena de la firma del manifiesto como invitado de honor. Philip Low: “ ”. Low es un investigador de la Universidad de Stanford y de MIT (Massachusetts Institute of Technology), ambos lugares se encuentran en los Estados Unidos.
Entrevistador: Low: Entrevistador: Low: . Entrevistador: Low: Entrevistador: Low: DNA: The Ultimate Hard Drive. When it comes to storing information, hard drives don't hold a candle to DNA. Our genetic code packs billions of gigabytes into a single gram. A mere milligram of the molecule could encode the complete text of every book in the Library of Congress and have plenty of room to spare. All of this has been mostly theoretical—until now. In a new study, researchers stored an entire genetics textbook in less than a picogram of DNA—one trillionth of a gram—an advance that could revolutionize our ability to save data.
A few teams have tried to write data into the genomes of living cells. To get around these problems, a team led by George Church, a synthetic biologist at Harvard Medical School in Boston, created a DNA information-archiving system that uses no cells at all. To demonstrate its system in action, the team used the DNA chips to encode a genetics book co-authored by Church. Don’t replace your flash drive with genetic material just yet, however. AAAS Science Careers, from the Journal Science - Biotech, Pharmaceutical, Faculty, Postdoc jobs on Science Careers. AICHE CEP Magazine. Newest Canary Island pictured rising from the deep. Chelsea Whyte, contributor The recent earthquakes in the Canary Islands of late aren't due to Poseidon the earth-shaker, but a submarine volcano to the south of the island of El Hierro.
Hot magma spewing from beneath the surface of the ocean has injected volcanic chemicals into the water, staining the sea green. Ocean waters have been churning with heat and seafloor sediment spewed from the volcano's plume, which stretches tens of kilometres under water. The eruption of magma is venting 50 to 100 meters below the surface, but catapulting volcanic rocks as high as 19 meters in the air. The volcanic activity is warming the waters by as much as 10 degrees Celsius, reports Red Orbit. The island of El Hierro sits on a tectonic hot spot in the Atlantic Ocean off the coast of Morocco, and the volcano off its shores has been erupting since mid-October. Biology. Multimedia Gallery. NewScientist The Last Word - Index page. Bathed in heat I had a hot bath one evening and decided not to let all the heat go to waste. So I left the plug in until the water had given up all of its heat to the house. But when is the best time to pull the plug out?
Should I wait until the water is the same temperature as the ambient indoors air, or should I keep the extra thermal mass in the bathtub, and then pull the plug when the temperature outside the house is at its lowest? Best before? What is it that allows fruitcake to survive so long? Condiment cleaner I recently read with interest in The Last Word of somebody using lemon juice to clean a bar top made of zinc. Nature Publishing Group : science journals, jobs, and information. Instant Zombie – Just Add Salt. | Science Sushi. Those of you who follow me on Google+, facebook or twitter might have seen this neat little video: Yeah, it freaked me out, too. But this little cephalopod isn’t actually alive – he’s just very freshly dead. A similar phenomenon can be seen in these frog legs: How are these dead body parts being brought back to life?
These clever cooks are capitalizing on biology to put on a show. The key is that the muscle has to be fresh – very, very fresh. So fresh, in fact, that its neurons are still completely in tact and ready to fire. All cells are polarized, which means the concentrations of charged atoms, called ions, of the fluid inside them is different from the fluid outside them. Neurons are highly specialized cells which process and transmit electrical signals. When a creature dies, its neurons don’t stop working right away. What you might have noticed is that in the case of the dancing dead, the cooks have added one key ingredient: salt (soy sauce is very salty). Nature Publishing Group : science journals, jobs, and information. Bacteria may communicate through nanowires. Some bacteria grow electrical hair that lets them link up in big biological circuits, possibly communicating and sharing energy.
“This is the first measurement of electron transport along biological nanowires produced by bacteria,” said Mohamed El-Naggar, assistant professor of physics and astronomy at the University of Southern California. He says that the discovery could help find ways to destroy harmful colonies, such as biofilms, and also help with the development of bacterial fuel cells. “The flow of electrons in various directions is intimately tied to the metabolic status of different parts of the biofilm,” El-Naggar said. “Bacterial nanowires can provide the necessary links for the survival of a microbial circuit.” To test the conductivity of the nanowires, the researchers grew cultures of Shewanella oneidensis MR-1, a microbe previously discovered by co-author Kenneth Nealson. The bacteria were then deposited on a surface dotted with microscopic electrodes. Scientists capture antimatter atoms in particle breakthrough.
Antihydrogen atoms were trapped in a magnetic fieldMatter and antimatter annihilate each other on contact"It's taken us five years to get here," says Professor Jeffrey HangstCERN's next ambition is to create a beam of antimatter (CNN) -- Scientists have captured antimatter atoms for the first time, a breakthrough that could eventually help us to understand the nature and origins of the universe.
Researchers at CERN, the Geneva-based particle physics laboratory, have managed to confine single antihydrogen atoms in a magnetic trap. This will allow them to conduct a more detailed study of antihydrogen, which will in turn allow scientists to compare matter and antimatter. Understanding antimatter is one of the biggest challenges facing science -- most theoretical physicists and cosmologists believe that at the Big Bang, when the universe was created, matter and antimatter were produced in equal amounts.
However, as our world is made up of matter, antimatter seems to have disappeared. Shocking Experiment Shows Talk Is Cheap. Engineers patch a heart: Tissue-engineering platform enables heart tissue to repair itself. Researchers at Columbia Engineering have established a new method to patch a damaged heart using a tissue-engineering platform that enables heart tissue to repair itself. This breakthrough, recently published in the Proceedings of the National Academy of Sciences, is an important step forward in combating cardiovascular disease, one of the most serious health problems of our day. Led by Gordana Vunjak-Novakovic, Professor of Biomedical Engineering at Columbia University's Fu Foundation School of Engineering and Applied Science, the researchers developed a novel cell therapy to treat myocardial infarction (heart damage that follows a heart attack).
They were able, for the first time, to combine the use of human repair cells that were conditioned during in-vitro culture to maximize their ability to revascularize and improve blood flow to the infarcted tissue with a fully biological composite scaffold designed to deliver these cells to the damaged heart. Dr.