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Results 41 - 60 of 63.


Physics - Chemistry - 07.05.2013
Another ’trophy’ for the chemistry cabinet
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 eluded scientists for decades. Now they have discovered that the bonding within this molecule is far different than expected.

Environment - Chemistry - 06.05.2013
Organic vapours affect clouds leading to previously unidentified climate cooling
06 May 2013 University of Manchester scientists, writing Geoscience, have shown that natural emissions and manmade pollutants can both have an unexpected cooling effect on the world's climate by making clouds brighter. Clouds are made of water droplets, condensed on to tiny particles suspended in the air.

Physics - Chemistry - 03.05.2013
Oxford academics honoured by the Royal Society
Oxford academics honoured by the Royal Society
The Royal Society has elected six Oxford University academics as new Fellows. They are Professor Harry Anderson, Professor Judith Armitage, Professor Gideon Henderson, Professor Christopher Schofield, Professor Andrew Wilkie, and Professor Julia Yeomans. Professor Harry Anderson is a professor in the Department of Chemistry and a fellow of Keble College.

Physics - Chemistry - 26.04.2013
Movement of pyrrole molecules defy ’classical’ physics
Quantum laws loom ever larger in physical world as new research finds quantum phenomena in effect on a molecular level The balance between the activation energy and the energy barrier that sticks the molecules to the surface is critical in determining which networks are able to form under different conditions.

Chemistry - 24.04.2013
Study provides new evidence of cooling properties of atmospheric molecule
24 Apr 2013 Scientists have discovered further evidence for the existence of new molecules in the atmosphere that have the potential to off-set global warming by reacting with airborne pollutants. Researchers from The University of Manchester, Bristol University, Southampton University and Sandia National Laboratories in California have detected the second simplest Criegee intermediate molecule – acetaldehyde oxide – and measured its reactivity.

Life Sciences - Chemistry - 19.04.2013
Random walks on DNA
Scientists have revealed how a bacterial enzyme has evolved an energy-efficient method to move long distances along DNA. The findings present further insight into the coupling of chemical and mechanical energy by a class of enzymes called helicases, a widely-distributed group of proteins, which in human cells are implicated in some cancers.

Chemistry - Environment - 12.04.2013
Revealed: Hunter gatherers' taste for fish
Revealed: Hunter gatherers’ taste for fish
A study involving scientists at the University of Liverpool has found the earliest use of ceramic pots was for cooking fish. In the first study to address the question of why humans made pots, scientists from the UK, the Netherlands, Sweden and Japan carried out chemical analysis of food residues in pottery up to 15,000 years old from the late glacial period.

Chemistry - Earth Sciences - 04.04.2013
Power behind primordial soup discovered
Researchers at the University of Leeds may have solved a key puzzle about how objects from space could have kindled life on Earth. While it is generally accepted that some important ingredients for life came from meteorites bombarding the early Earth, scientists have not been able to explain how that inanimate rock transformed into the building blocks of life.

Physics - Chemistry - 03.04.2013
Building quantum states with individual silicon atoms
Building quantum states with individual silicon atoms
By introducing individual silicon atom 'defects' using a scanning tunnelling microscope, scientists at the London Centre for Nanotechnology have coupled single atoms to form quantum states. , the study demonstrates the viability of engineering atomic-scale quantum states on the surface of silicon - an important step toward the fabrication of devices at the single-atom limit.

Physics - Chemistry - 28.03.2013
Shedding new light on enzyme crucial to life processes
Researchers at the University of Liverpool have revealed the crystal structure of a bacterial enzyme that offers clues on how electrons in the body move from one protein molecule to another.

Life Sciences - Chemistry - 28.03.2013
Scientists identify brain's 'molecular memory switch'
Scientists identify brain’s ’molecular memory switch’
Scientists have identified a key molecule responsible for triggering the chemical processes in our brain linked to our formation of memories. The findings, published in the journal Frontiers in Neural Circuits , reveal a new target for therapeutic interventions to reverse the devastating effects of memory loss.

Astronomy / Space Science - Chemistry - 11.03.2013
Beyond the blinding starlight
Study reveals chemical composites of exoplanet atmospheres 128 light years away. Scientists say techniques will "one day provide evidence of life beyond Earth". The really exciting thing is that, one day, the techniques we've developed will give us our first secure evidence of the existence of life on a planet outside our solar system Ian Parry Astronomers have conducted the first remote reconnaissance of a distant solar system, using new telescope imaging techniques to reveal the chemical composition of exoplanets orbiting a star 128 light years from Earth.

Health - Chemistry - 05.03.2013
Breakthrough paves the way for treatments preventing premature births
Scientists from the University of Sheffield have discovered that a key gene in the womb, which stops labour occurring too early, is switched off by inflammation in the uterus at the time labour begins - a discovery which paves the way for developing new treatments to prevent premature births. In the UK premature birth affects roughly one in 10 deliveries and complications arising from pre-term birth are a leading cause of deaths amongst new-born babies.

Chemistry - Health - 01.03.2013
Cell movement explained by molecular recycling
Cell movement explained by molecular recycling
Working under Martin Humphries, the Dean of the Faculty of Life Sciences, Mark Morgan and his team at the Wellcome Trust Centre for Cell Matrix Research studied the role of integrins. These molecules are able to grab hold of the fibres surrounding the cell, like hands, allowing the cell to drag its self along.

Chemistry - Physics - 14.02.2013
New technique developed to separate complex molecular mixtures
New technique developed to separate complex molecular mixtures
Chemists at the University of Liverpool have created a new technique that could be used in industry to separate complex organic chemical mixtures. Chemical feedstocks containing benzene are used extensively in industry to create modern materials and polymers. Distillation techniques Their use relies heavily on distillation techniques which separate complex mixtures into more simple molecules used as building blocks to develop drugs, plastics and new materials. These distillation techniques can be expensive and involve large amounts of energy for hard-to-separate mixtures.

Health - Chemistry - 07.02.2013
Nottingham in 196 million European drug discovery drive
Pioneering chemists from The University of Nottingham are taking part in the biggest-ever European research programme to speed up the discovery of new drugs.

Chemistry - Physics - 28.01.2013
Secret of scent lies in molecular vibrations
Secret of scent lies in molecular vibrations
Molecular vibrations, rather than molecular shape, give substances their distinct smell according to a new study by UCL scientists. In a study designed to find out how smell is written into a molecule's structure, scientists tested whether changing how a molecule vibrates on a nano-scale changes its smell.

Chemistry - Physics - 15.01.2013
Chemistry resolves toxic concerns about carbon nanotubes
Chemistry resolves toxic concerns about carbon nanotubes
Safety fears about carbon nanotubes, due to their structural similarity to asbestos, have been alleviated following research showing that reducing their length removes their toxic properties. In a new study, published today in the journal Angewandte Chemie, evidence is provided that the asbestos-like reactivity and pathogenicity reported for long, pristine nanotubes can be completely alleviated if their surface is modified and their effective length is reduced as a result of chemical treatment.

Chemistry - 14.01.2013
Gas that triggers ozone destruction
Scientists at the Universities of Leeds and York have discovered that the majority of ozone-depleting iodine oxide observed over the remote ocean comes from a previously unknown marine source. The research team found that the principal source of iodine oxide can be explained by emissions of hypoiodous acid (HOI) – a gas not yet considered as being released from the ocean – along with a contribution from molecular iodine (I2).

Health - Chemistry - 14.01.2013
The secrets of a tadpole's tail and the implications for human healing
The secrets of a tadpole’s tail and the implications for human healing
It is generally appreciated that frogs and salamanders have remarkable regenerative capacities, in contrast to mammals, including humans. For example, if a tadpole loses its tail a new one will regenerate within a week. For several years Enrique Amaya and his team at The Healing Foundation Centre in the Faculty of Life Sciences have been trying to better understand the regeneration process, in the hope of eventually using this information to find new therapies that will improve the ability of humans to heal and regenerate better.

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