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News | Archive (26 June 2010)
Industry fishing for profits, not predators
— 14:10 GMT | EnvironmentPeople who fish for a living pursue top profits, not necessarily top predators, according to the first-ever analysis of worldwide catch and economic data for the past 55 years…
Do bosons ever masquerade as fermions?
— 14:07 GMT | PhysicsOf all the assumptions underlying quantum mechanics and the theory that describes how particles interact at the most elementary level, perhaps the most basic is that particles are either bosons or fermions. Bosons, such as the particles of light called photons, play by one set of rules; fermions, including electrons, play by another…
Chromosomal variations found in early passage female embryonic stem cells
— 14:04 GMT | HealthHuman embryonic stem cells hold great promise for studying and treating disease and for the practice of regenerative medicine. However, more must be learned to ensure the cells that may one day be transplanted into humans are safe…
Researchers call for 'no-regrets' approach to climate warming
— 14:01 GMT | EnvironmentTwo prominent climate experts, including one from the University of Arizona, are calling for a 'no-regrets' strategy for planning for a hotter and drier western North America. Their advice: use water conservatively and continue developing ways to harness energy from the sun, wind and Earth…
Answer to what ended the last ice age may be blowing in the winds, paper says
— 13:58 GMT | EnvironmentScientists still puzzle over how Earth emerged from its last ice age, an event that ushered in a warmer climate and the birth of human civilisation. In the geological blink of an eye, ice sheets in the northern hemisphere began to collapse and warming spread quickly to the south. Most scientists say that the trigger, at least initially, was an orbital shift that caused more sunlight to fall across Earth's northern half. But how did the south catch up so fast?…
Scientific expertise lacking among 'doubters' of climate change
— 13:55 GMT | EnvironmentThe small number of scientists who are unconvinced that human beings have contributed significantly to climate change have far less expertise and prominence in climate research compared with scientists who are convinced, according to a study led by Stanford researchers…
Tropical biodiversity is about the neighbours
— 13:52 GMT | EnvironmentHome to jaguars, harpy eagles and red-eyed tree frogs, tropical forests support some of the rarest species on the planet and are the most biodiverse ecosystems on land. Understanding why some species are common while others are exceedingly rare has been a challenge in these mega-diverse forests. New results from a massive study at the Smithsonian Tropical Research Institute show that interactions among community members play an important role in determining which organisms thrive…
Expecting Tropical Depression Alex in the Caribbean
— 13:49 GMT | EnvironmentForecasters on June 25 had given System 93L in the western Caribbean an 80 percent chance of developing into Tropical Depression Alex, and weekends seem to always birth tropical depressions. The GOES-13 satellite captured a visible image of both System 93L and a second low east of the Leeward Islands that has a much lesser chance of development this weekend…
Proposed rules would allow metric only labelling for some products
— 13:46 GMT | TechnologyThe National Institute of Standards and Technology (NIST) has issued two publications calling for the amendment of labelling laws to allow the voluntary use of only metric units on some consumer products. NIST researchers suggest that adoption of metric labelling will lead to greater agreement between state and federal labelling laws and simplify domestic and international commerce. juice cartons showing different types of labelling…
Large-scale genomic analysis of prostate cancer unveiled
— 13:43 GMT | HealthA unique collaboration among physician-scientists at Memorial Sloan-Kettering Cancer Centre (MSKCC) has yielded the most comprehensive genomic analysis of prostate cancer to date. 'Genomic studies in other cancer types have resulted in new drug targets and strategies to classify patients into clinically meaningful subgroups that improve treatment decisions,' said senior study author Charles Sawyers, Chair of the Human Oncology and Pathogenesis Program at MSKCC and a HHMI investigator. 'This first -ever database of its type brings us one step closer to achieving that goal in prostate cancer'…
Propulsion technology mostly unchanged after 50 years
MESSENGER streams back surprises from Mercury