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News articles about "Compounds"

Tropical upper atmosphere 'fingerprint' of global warming

Global warming, Atmosphere, Global warming, Atmosphere
In the tropics at heights more than 10 miles above the surface the prevailing winds alternate between strong easterlies and strong westerlies roughly every other year This slow heartbeat in the tropical upper atmosphere referred ... - Read More

Detecting mirror molecules: New technique reliably tells left-handed from right-handed variant of a compound

Harvard physicists have developed a novel technique that can detect molecular variants in chemical mixtures greatly simplifying a process that is one of the most important though time consuming processes in analytical chemistry As described ... - Read More

Volcanoes cause climate gas concentrations to vary

Gas
Trace gases and aerosols are major factors influencing the climate With the help of highly complex installations such as MIPAS on board of the ENVISAT satellite researchers try to better understand the processes in the ... - Read More

Unique method creates correct mirror image of molecule

Molecule, molecule
Many molecules have a right and a left form just like shoes In pharmaceuticals it is important that the correct form of the molecule is used Researchers at the University of Gothenburg Sweden have been ... - Read More

Polymer breakthrough inspired by trees and ancient celtic knots

Polymer
A new slow motion method of controlling the synthesis of polymers which takes inspiration from both trees and Celtic Knots opens up new possibilities in areas including medical devices drug delivery elastics and adhesives Scientists ... - Read More

Bacterial spare parts filter antibiotic residue from groundwater

Researchers at University of Cincinnati have developed and tested a solar powered nano filter that is able to remove harmful carcinogens and antibiotics from water sources lakes and rivers at a significantly higher rate than ... - Read More

Amazon River exhales virtually all carbon taken up by rainforest

Carbon, carbon
The Amazon rain forest popularly known as the lungs of the planet inhales carbon dioxide as it exudes oxygen Plants use carbon dioxide from the air to grow parts that eventually fall to the ground ... - Read More

Bacteria use hydrogen, carbon dioxide to produce electricity

Carbon, Carbon dioxide, Bacteria, Carbon dioxide, carbon, bacteria
Researchers have engineered a strain of electricity producing bacteria that can grow using hydrogen gas as its sole electron donor and carbon dioxide as its sole source of carbon Researchers at the University of Massachusetts ... - Read More

Beautiful 'flowers' self-assemble in a beaker

Beaker
Spring is like a perhaps hand wrote the poet E E Cummings carefully moving a perhaps fraction of flower here placing an inch of air there without breaking anything With the hand of nature trained ... - Read More

Molecular basis of strawberry aroma

Molecular basis
You know that summer is here when juicy red strawberries start to appear on the shelves In Germany this seasonal fruit has never been more popular on average 3.5 kilos per head were consumed in ... - Read More

New magnetic graphene may revolutionize electronics

Electronics, Electronics, Electronics, Electronics
Researchers from IMDEA Nanociencia Institute and from Autonoma and Complutense Universities of Madrid Spain have managed to give graphene magnetic properties The breakthrough published in the journal 'Nature Physics' opens the door to the development ... - Read More

Dust in the clouds: Cirrus clouds form around mineral dust and metallic particles

Mineral
At any given time cirrus clouds the thin wisps of vapor that trail across the sky cover nearly one third of the globe These clouds coalesce in the upper layers of the troposphere often more ... - Read More

PCBs are everywhere: Problem exists in industrial city and rural community

Community
Since polychlorinated biphenyls PCBs are produced through industrial processes or activities it is assumed that people living in industrial cities will have higher concentrations of these toxic chemicals in their blood than people in rural ... - Read More

PCB concentrations same in urban and rural areas

Community, Environment, Engineering
Since polychlorinated biphenyls PCBs are produced through industrial processes or activities it is assumed that people living in industrial cities will have higher concentrations of these toxic chemicals in their blood than people in rural ... - Read More

Cleaner, low temperature nuclear fuels?

The search for cleaner low temperature nuclear fuels has produced a shock result for a team of experts at The University of Nottingham First they created a stable version of a 'trophy molecule' that has ... - Read More

The Black Sea is a goldmine of ancient genetic data

sea
When Woods Hole Oceanographic Institution WHOI marine paleoecologist Marco Coolen was mining through vast amounts of genetic data from the Black Sea sediment record he was amazed about the variety of past plankton species that ... - Read More

Brighter clouds, cooler climate? Organic vapors affect clouds, leading to previously unidentified climate cooling

Climate, climate
University of Manchester scientists writing in the journal Nature Geoscience have shown that natural emissions and humanmade pollutants can both have an unexpected cooling effect on Earth's climate by making clouds brighter Clouds are made ... - Read More

Improving materials that convert heat to electricity and vice-versa: Turning waste heat into electricity

Heat
Thermoelectric materials can be used to turn waste heat into electricity or to provide refrigeration without any liquid coolants and a research team from the University of Michigan has found a way to nearly double ... - Read More

Microwave oven cooks up solar cell material

Microwave
University of Utah metallurgists used an old microwave oven to produce a nanocrystal semiconductor rapidly using cheap abundant and less toxic metals than other semiconductors They hope it will be used for more efficient photovoltaic ... - Read More

Discovery of new gigantic swelling phenomenon of layered crystal driven by water

A research group at the International Center for Materials Nanoarchitectonics MANA of NIMS discovered an intriguing phenomenon in which an inorganic layered crystal expanded and contracted by 100 times its original size in a few ... - Read More
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