News articles tagged with 'concentration'
Cutting carbon dioxide helps prevent drying
— 28 Mar 2011 18:42 | EnvironmentRecent climate modelling has shown that reducing the concentration of carbon dioxide in the atmosphere would give the Earth a wetter climate in the short term. New research from Carnegie…
Exposure to chemicals in environment associated with onset of early menopause
— 28 Mar 2011 15:42 | HealthA recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology and Metabolism (JCEM) found that higher levels of perfluorocarbons (PFCs) in the…
New instrument keeps an 'eye' on nanoparticles
— 6 Mar 2011 19:05 | TechnologyPrecision measurement in the world of nanoparticles has now become a possibility, thanks to scientists at UC Santa Barbara…
Abundant ammonia aids life's origins
— 3 Mar 2011 12:26 | BiologyAn important discovery has been made with respect to the possible inventory of molecules available to the early Earth. Scientists led by Sandra Pizzarello, a research professor at Arizona…
New path to water efficient seeds opens as TIP pips PIP as water gatekeeper
— 24 Feb 2011 19:05 | BiologyResearch by University of Warwick's School of Life Sciences has opened up a new path to produce water efficient seeds that will be a significant tool to cope with drought resistance,…
Scripps Research study sheds light on RNA 'on off switches'
— 13 Feb 2011 21:13 | BiologyScientists from The Scripps Research Institute have shed new light on a molecular switch that turns genes on or off in response to a cell's energy needs…
Ice cores yield rich history of climate change
— 3 Feb 2011 17:27 | EnvironmentOn Friday, Jan. 28 in Antarctica, a research team investigating the last 100,000 years of Earth's climate history reached an important milestone completing the main ice core to a depth…
Apoptotic mechanisms of octreotide on HepG2
— 1 Feb 2011 19:27 | HealthHepatocellular carcinoma (HCC) is the fifth most common malignancy in the world and is estimated to cause approximately half a million deaths annually. Undoubtedly, the best available…
Caltech geobiologists uncover links between ancient climate change and mass extinction
— 28 Jan 2011 16:18 | Geology and palaeontologyAbout 450 million years ago, Earth suffered the second-largest mass extinction in its history - the Late Ordovician mass extinction, during which more than 75 percent of marine species…
Hormones dictate breeding success in birds
— 26 Jan 2011 18:40 | BiologySome animals produce more offspring than others do. Hormones like prolactin and corticosterone can exercise a crucial influence on the behaviour of birds in the breeding season and…