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News articles about "Radiation"

NASA Curiosity: First Mars age measurement and human exploration help

Mars, NASA
NASA's Curiosity rover is providing vital insight about Mars' past and current environments that will aid plans for future robotic and human missions In a little more than a year on the Red Planet the ... - Read More

Geoengineering approaches to reduce climate change unlikely to succeed

climate, Climate, Climate change, Climate change
Reducing the amount of sunlight reaching the planet's surface by geoengineering may not undo climate change after all Two German researchers used a simple energy balance analysis to explain how Earth's water cycle responds differently ... - Read More

Intense two-color double X-ray laser pulses: Powerful tool to study ultrafast processes

X-ray
A team working at the SACLA X ray Free Electron Laser XFEL in Japan has succeeded in generating ultra bright two color X ray laser pulses for the first time in the hard X ray ... - Read More

Molecular imaging tracers help determine treatment plans for brain metastases

Imaging with the molecular imaging tracer 18F FDOPA can help distinguish radiation induced lesions from new tumor growth in patients who have been treated with radiation for brain metastases according to new research published in ... - Read More

Physicists study coldest objects in universe

Light, Light
In a new study published today in the Institute of Physics and German Physical Society's New Journal of Physics a group of researchers from the UK and Australia have come up with a new way ... - Read More

Rain as acidic as lemon juice may have contributed to ancient mass extinction

Lemon juice
Rain as acidic as undiluted lemon juice may have played a part in killing off plants and organisms around the world during the most severe mass extinction in Earth's history About 252 million years ago ... - Read More

X-ray laser can solve protein structures from scratch

X-ray, Protein structures
A study shows for the first time that X ray lasers can be used to generate a complete 3 D model of a protein without any prior knowledge of its structure An international team of ... - Read More

Tiny crystals could revolutionize structural biology studies

For structural biologists the first step in determining a protein's precise molecular structure is often the hardest coaxing the protein to grow into the orderly three dimensional crystals that are the starting material for most ... - Read More

Putting a new spin on tokamak disruptions

Plasma
In the quest for fusion energy on earth researchers use magnetic fields to insulate hot plasma from the walls of the chamber to maintain the reaction and prevent damage to interior surfaces In the tokamak ... - Read More

Solar cells utilize thermal radiation

Thermal radiation from the sun is largely lost on most silicon solar cells Up converters transform the infrared radiation into usable light however Researchers have now for the first time successfully adapted this effect for ... - Read More

Dye absorption structure of dye-sensitized solar cells elucidated on molecular level: Success in dye absorption structure control

NIMS researchers elucidated the relationship between the photocurrent and the peculiar changes in the absorption structure occurring in the vicinity of the molecular electrode interface in dye sensitized solar cells The Organic Inorganic Hybrid Photovoltaics ... - Read More

A nano-sized sponge made of electrons

Nano
A new chapter has been opened in our understanding of the chemical activity of nanoparticles says a team of international scientists Using the X ray beams of The European Synchrotron ESRF they showed that the ... - Read More

New aluminum alloy stores hydrogen: Versatile, lightweight material opens the door to fuel cells of the future

Fuel, Fuel cells
We use aluminum to make planes lightweight store sodas in recyclable containers keep the walls of our homes energy efficient and ensure that the Thanksgiving turkey is cooked to perfection Now thanks to a group ... - Read More

Bringing out the best in X-ray crystallography data

X-ray crystallography, Crystallography, X-ray
Function follows form might have been written to describe proteins as the M C Escher esque folds and twists of nature's workhorse biomolecules enables each to carry out its specific responsibilities Technology's workhorse for determining ... - Read More

Geoengineering the climate could reduce vital rains

Climate, climate
Although a significant build up in greenhouse gases in the atmosphere would alter worldwide precipitation patterns a widely discussed technological approach to reduce future global warming would also interfere with rainfall and snowfall new research ... - Read More

Improving light and heat spectra measurements

Heat, Spectra
Whether you want to investigate objects in space characterize the quality of light sources optimize photovoltaics modules or analyze chemical compounds measuring the spectrum of light or heat sources is often the method of choice ... - Read More

World's most powerful terahertz quantum cascade laser

Cascade
Whether it is diagnostic imaging analysis of unknown substances or ultrafast communication terahertz radiation sources are becoming more and more important At the Vienna University of Technology an important breakthrough has been achieved Terahertz waves ... - Read More

Plasmonic crystal alters to match light-frequency source: Device is like a photonic crystal, but smaller and tunable

Crystal
Gems are known for the beauty of the light that passes through them But it is the fixed atomic arrangements of these crystals that determine the light frequencies permitted passage Now a Sandia led team ... - Read More

Molecular biology: Designer of protein factories exposed

Molecular biology
For 10 years Patrick Cramer and his colleagues at Ludwig Maximilians Universitaet LMU in Munich have probed the structure of RNA polymerase I a crucial cog in the machinery of all cells Now they unveil ... - Read More

Understanding DNA damage from common radiation threat, low-energy electrons

Every day all day our DNA gets beaten up by chemicals and radiation but remarkably most of us stay healthy Now an investigation by a team of French and Canadian researchers has produced insights into ... - Read More
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