Spinal cord injury therapy developed to prevent paralysis

Researchers at the Sloan-Kettering Institute for Cancer Research studied rats with crushed spinal cords. The scientists found treatment soon after injury, combining radiation therapy to destroy harmful cells and microsurgery to drain excess fluids, significantly helped the body repair the injured cord. The scientists, led by Nurit Kalderon, said their findings demonstrate conventional clinical procedures …

Read more

Breakthrough in understanding how embryonic stem cells function

Hat tip to KurzweilAI, the Toronto Star reports : a landmark discovery by researchers at McMaster University could radically alter the way scientists can use embryonic stem cells to grow replacement tissues and treat cancer. In a surprise revelation, a McMaster study found that human embryonic stem cells – “the great grandmothers” of all the …

Read more

Water World Found In Front Of Nearby Star

A hot ice Neptune sized world with water has been found The star GJ 436, a diminutive star (red dwarf) 30 light-years from the Sun, was known since 2004 to harbour a 22-Earth mass planet, orbiting 4 million kilometers from the star (0.03 Astronomical Units). Measurements show that the planet has a diameter of about …

Read more

Foresight’s Technology roadmap for productive nanosystems to be revealed Oct 9, 2007 Arlington

The Technology Roadmap for Productive Nanosystems has examined what can be developed in labs today and then mapped out a step-by-step plan for the pathways of development that must take place to achieve productive nanosystems. This has been a long anticipated event by those (like myself) who follow molecular nanotechnology. Here is the Technology Roadmap …

Read more

Computer analysis of metamaterial invisibility

A unique computer model designed by a mathematician at the University of Liverpool has shown that it is possible to make objects, such as aeroplanes and submarines, appear invisible at close range. Scientists predict that metamaterials could be of use in military technology, such as in the construction of fighter jets and submarines, but it …

Read more

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

The Global Boom in coal

The world is building a lot of coal-fired power to go with all of the coal-fired power it already has. This is horrible because air pollution from coal kills more than one million people every year. We need to use all other means to reduce the increase in coal usage, this means more nuclear as …

Read more

Robert Freitas interview at lifeboat.com

The transcript of an email interview Robert Freitas is up at lifeboat.com What I found to be the highlights of the interview: 1. Culminating 5 years of intermittent effort Robert Freitas has finished his latest theoretical scaling study of a new diamondoid medical nanorobot called the “chromallocyte”. This is the first full technical description of …

Read more

Another plastic solar cell efficiency gain this time from baking

The best plastic solar cells are made from a light-absorbing polymer containing soccer ball-shaped carbon molecules called fullerenes. The fullerenes provide stepping stones in the plastic film for charge to hop across. By carefully heating finished cells to around 150ºC, Carroll and colleagues made the fullerene molecules form whiskers of crystal. These trigger crystallisation in …

Read more