Canadian greenhouse gases rose 1990-2005
Canada's greenhouse gas emissions increased 25 percent between 1990 and 2005, a federal report published Tuesday said.
Environment
Apr 22, 2008
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22/04/2008
Companies do not always release important information
The study, led by Karen Lightstone, PhD, CA, of Saint Mary’s University in Nova Scotia, Canada, focused on companies that had received a cease-trading order (CTO), indicating that the investor could not sell shares and ...
Other
Apr 22, 2008
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Shell-breaking crabs lived 20 million years earlier than thought
While waiting for colleagues at a small natural history museum in the state of Chiapas, Mexico last year, Cornell paleontologist Greg Dietl chanced upon a discovery that has helped rewrite the evolutionary history of crabs ...
Archaeology
Apr 22, 2008
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Commercialization of air traffic control greatly improves performance
The air transportation industry is imperative to modern society. This industry depends, in turn, on a network of air navigation service providers (ANSPs) to manage the flow of air traffic. A new study in Canadian Public Administration, ...
Other
Apr 22, 2008
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Can certain metals repel sharks from fishing gear?
Sharks in captivity avoid metals that react with seawater to produce an electric field, a behavior that may help fishery biologists develop a strategy to reduce the bycatch of sharks in longline gear. Shark bycatch is an ...
Apr 22, 2008
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Secure Communication via Space
The exchange of information between distant sources is the basis of all communications, but quantum mechanics may open up this distant exchange as never before.
General Physics
Apr 22, 2008
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Photoluminescence in nano-needles
Silicon is the workhorse among semiconductors in electronics. But in opto-electronics, where light signals are processed along with electronic signals, a semiconductor that is capable of emitting light is needed, which silicon ...
Nanophysics
Apr 22, 2008
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Scientists clarify a mechanism of epigenetic inheritance
Although letters representing the three billion pairs of molecules that form the “rungs” of the helical DNA “ladder” are routinely called the human “genetic code,” the DNA they comprise transmits traits across ...
Apr 22, 2008
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First atomic-level look at a protein that causes brain disease
For the first time, researchers have peered deeply at the atomic level into the protein that causes hereditary cerebral amyloid angiopathy (CAA) -- a disease thought to cause stroke and dementia. The study pinpointed a tiny ...
Apr 22, 2008
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Study examines amount of water needed to produce various types of energy
It is easy to overlook that most of the energy we consume daily, such as electricity or natural gas, is produced with the help of a dwindling resource – fresh water. Virginia Tech professor Tamim Younos and undergraduate ...
Environment
Apr 22, 2008
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