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Sugar to hydrogen technology promises transporation fuel independence

Sugar to hydrogen technology promises transporation fuel independence

The hydrogen economy is not a futuristic concept. The U.S. Department of Energy's 2006 Advance Energy Initiative calls for competitive ethanol from plant sources by 2012 and a good selection of hydrogen-powered fuel cell vehicles by 2020.
Researchers at Virginia Tech, Oak Ridge National Laboratory (ORNL), and the University of Georgia propose using polysaccharides, or sugary carbohydrates, from biomass to directly produce low-cost hydrogen for the new hydrogen economy.

Evolution In The Lab

Evolution In The Lab

Nature, through the trial and error of evolution, has discovered a vast diversity of life from what can only presumed to have been a primordial pool of building blocks.
Inspired by this success, a new Biodesign Institute research team, led by John Chaput, is now trying to mimic the process of Darwinian evolution in the laboratory by evolving new proteins from scratch. Using new tricks of molecular biology, Chaput and co-workers have evolved several new proteins in a fraction of the 3 billion years it took nature.

The three-dimensional structure (ribbon diagram) of protein DX as a crystallogrpahic dimer.

Save the African Bushbuck, save the world

Save the African Bushbuck, save the world

Tracing the evolutionary history of wildlife could improve global habitat conservation, a major Cardiff University study has found.
Researchers in the School of Biosciences analysed the African bushbuck, a common species which lives in most sub-Saharan habitat types to test whether DNA similarity between populations living in different habitats can reveal the similarity of those ecoregions now and in the past.

The African bushbuck, a common species which lives in most sub-Saharan habitat types. Credit: Cardiff University

Einstein researchers' discover 'radiation-eating' fungi

Einstein researchers' discover 'radiation-eating' fungi

Restore Earth's energy balance. Feed some astronauts. It could all be possible thanks to a new fungi discovery by Albert Einstein College of Medicine researchers.
Scientists have long assumed that fungi exist mainly to decompose matter into chemicals that other organisms can then use. But researchers at the Albert Einstein College of Medicine of Yeshiva University have found evidence that fungi possess a previously undiscovered talent with profound implications: the ability to use radioactivity as an energy source for making food and spurring their growth.

Exercise reverses aging in human skeletal muscle

Exercise reverses aging in human skeletal muscle

Not only does exercise make most people feel better and perform physical tasks better, it now appears that exercise – specifically, resistance training -- actually rejuvenates muscle tissue in healthy senior citizens.
A recent study, co-led by Simon Melov and Mark Tarnopolsky, involved before and after analysis of gene expression profiles in tissue samples taken from 25 healthy older men and women who underwent six months of twice weekly resistance training, compared to a similar analysis of tissue samples taken from younger healthy men and women.

Next: Carbon free cars powered by hydrogen

Next: Carbon free cars powered by hydrogen

A new breakthrough in hydrogen storage technology could remove a key barrier to widespread uptake of non-polluting cars that produce no carbon dioxide emissions.

PN 35-07 atoms. CLICK IMAGE FOR FULL SIZE. Credit: EPSRC

Mid Sweden University leads development of digital color x-rays

Mid Sweden University leads development of digital color x-rays

In the future doctors will be able to find more tumors at an early stage while using a smaller x-ray dose for each examination. Color x-rays offer new possibilities for medical diagnoses. This spring Mid Sweden University is presenting three dissertations in the field of digital color x-rays.
Digital color x-rays are based on the same advanced technology that is used when nuclear physicists look for new elementary particles. The great scientific challenge in constructing a color x-ray camera is to be able to shrink the large-scale detection equipment used by nuclear physicists to the microscopic format.

How plants form in barren oceans

How plants form in barren oceans

NASA satellite data have helped scientists solve a decades-old puzzle about how vast blooms of microscopic plants can form in the middle of otherwise barren mid-ocean regions. A research team led by the Woods Hole Oceanographic Institution, Woods Hole, Mass., has used the data in its work to show that episodic, swirling current systems known as eddies act to pump nutrients up from the deep ocean to fuel such blooms.

Less Carpooling: Cars With Passengers 60% More Likely To Crash

Less Carpooling: Cars With Passengers 60% More Likely To Crash

A new study by The George Institute for International Health was designed to determine the risk of a crash associated with passenger carriage compared with that of using a mobile phone while driving.
"Drivers with passengers were almost 60% more likely to have a motor vehicle crash resulting in hospital attendance, irrespective of their age group. The likelihood of a crash was more than doubled in the presence of two or more passengers," noted the study's lead investigator, Dr Suzanne McEvoy.

Witch hunt: do indoor smoking bans require outdoor ones also?

Witch hunt: do indoor smoking bans require outdoor ones also?

With the growing number of smoking bans in restaurants and bars driving smokers outside, researchers in Athens, Georgia, are hoping to find out whether secondhand smoke from smokers clustered outside these establishments is posing a health hazard of its own.
They presented findings from a study in which they measured the increase of pollutants from secondhand smoke.

Switchable two-color light source on a silicon chip

Switchable two-color light source on a silicon chip

Silicon is the most important material for electronic chips and processors. Yet it has a big drawback: being a so-called indirect semiconductor, it hardly emits any light. Therefore worldwide efforts in the labs of the microelectronics industry are aimed towards developing more efficient light sources based on silicon. Physicists at the Forschungszentrum Dresden-Rossendorf (FZD) now managed to make Silicon shine red and blue in an alternating fashion. This two-color light source could help to produce cheap and compact biosensors.

Concern: effects of global warming on infectious diseases

Concern: effects of global warming on infectious diseases

As the Earth’s temperatures continue to rise, we can expect a signficant change in infectious disease patterns around the globe. Just exactly what those changes will be remains unclear, but scientists agree they will not be for the good.
"Environmental changes have always been associated with the appearance of new diseases or the arrival of old diseases in new places. With more changes, we can expect more surprises," says Stephen Morse of Columbia University.