Discovery of first gene that specifically links calorie restriction to longevity

Loss of only one of the genes, a gene encoding the protein PHA-4, negated the lifespan-enhancing effect of calorie-restriction in worms. And, when researchers undertook the opposite experiment—by overexpressing pha-4 in worms—the longevity effect was enhanced. “PHA-4 acts completely independent of insulin/IGF-1 signaling and turns out to be essential for CR-mediated longevity,” says Panowski. “We …

Read more

New material Nanobuds are buckyballs fused to Nanotubes

(left) Two transmission electron microscope images of a single-walled carbon nanotube with fullerenes attached to its surface (right) A fullerene/SWNT hybrid structure – a NanoBud. Credit: Esko Kauppinen, et al. Researchers have created a hybrid carbon nanomaterial that merges single-walled carbon nanotubes and spherical carbon-atom cages called fullerenes. The new structures, dubbed NanoBuds because they …

Read more

Water used for nuclear power is not destroyed

One of the main uses of water in the power industry is to cool the power-producing equipment. Water used for this purpose does cool the equipment, but at the same time, the hot equipment heats up the cooling water. Overly hot water cannot be released back into the environment — fish downstream from a power …

Read more

Self-assembling macromolecules created

Institute Director S. Richard Turner and doctoral candidate Min Mao reported the synthesis of a new family of charged, rod-like block copolymers. The tiny rods can be either positive or negative, or can have alternating positive and negative charges along the backbone. The rods self-assemble and the aggregated structures are remarkable stable in saline solution, …

Read more

Medical robot breakthrough: Software controlled movement in living animal

The power of pre-molecular nanotechnology systems is shown in this work. APolytechnique team has succeeded in injecting, propelling andcontrolling by means of software programs an initial prototype of anuntethered device (a ferromagnetic 1.5- millimetre-diameter sphere)within the carotid artery of a living animal placed inside a clinicalmagnetic resonance imaging (MRI) system. They have succeeded forthe first …

Read more

Dwave quantum computer demo part 2

Photos of the event by Steve Jurvetson Geordie Rose on stage at the Computer History Musem as data streams into the quantum computer… Article about the event from the Register IEEE Spectrum also has an article and reaction from Lieven Vandersypen, an associate professor at Delft University Vandersypen was a wait and see attitude. Vandersypen …

Read more

Discovery Channels View of 2057

Discovery channel has a series on the future of 2057 They are way to conservative on what they are projecting. The chat transcript with series host futurist Michio Kaku shows that he is not up to date on the latest technologies. He thinks that the most powerful quantum computer calculation is 3*5=15. This was the …

Read more

How Insect size robots will fight

Wired summarizes destructive methods usable by micro robots and micro UAVs Israel is developing a robot the size of a hornet to attack terrorists. And although the prototype will not fly for three years, killer Micro Air Vehicles, or MAVs, are much closer than that. British Special Forces already use 6-inch MAV aircraft called WASPs …

Read more

World Health Organization estimates 3 million killed by outdoor air pollution

The World Health Organization (WHO) says 3 million people are killed worldwide by outdoor air pollution annually from vehicles and industrial emissions, and 1.6 million indoors through using solid fuel. Most are in poor countries. One study says 7-20% of cancers are attributable to poor air and pollution in homes and workplaces. Wikipedia discusses air …

Read more

Quantum biology

Researchers at Rensselaer Polytechnic Institute describe a mechanism to explain how an intein — a type of protein found in single-celled organisms and bacteria — cuts itself out of the host protein and reconnects the two remaining strands. The intein breaks a protein sequence at two points: first the N-terminal, and then the C-terminal. This …

Read more