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Links in the Chain: Global Carbon Emissions and Consumption

By Guest PostOctober 19, 2011Environmentburning fuels, carbon dioxide, carbon dioxide emissions, carbon-based fuels, carnegie institution for science, earth’s atmosphere, fossil energy resources, gross domestic product, ken caldeira, national academy of sciences, natural gas, steven davis

Washington, D.C. — It is difficult to measure accurately each nation’s contribution of carbon dioxide to the Earth’s atmosphere. Carbon is extracted out of the ground as coal, gas, and oil, and these fuels are often exported to other countries where they are burned to generate the energy that is used to make products. In turn, these products may be traded to still other countries where they are consumed. A team led by Carnegie’s Steven Davis, and including Ken Caldeira, tracked and quantified this supply chain of global carbon dioxide emissions. Their work will be published online by Proceedings of the National Academy of Sciences during the week of October 17. (more…)

Circadian Rhythms Spark Plants’ Ability to Survive Freezing Weather

By Guest PostApril 14, 2011Scienceabiotic stresses, agbioresearch, bioenergy crops, circadian clock, circadian cues, circadian rhythms, eva farré, freezing weather, malia dong, michael thomashow, microbes, molecular genetics, monarch butterflies, national academy of sciences, renewal biofuels, spark plants

EAST LANSING, Mich. — Just as monarch butterflies depend on circadian cues to begin their annual migration, so do plants to survive freezing temperatures.

All living things – humans, animals, plants, microbes – are influenced by circadian rhythms, which are physical, mental and behavioral changes that follow a 24-hour cycle. In the current issue of the Proceedings of the National Academy of Sciences, Michael Thomashow, University Distinguished Professor of molecular genetics, along with MSU colleagues Malia Dong and Eva Farré, has identified that the circadian clock provides key input required for plants to attain maximum freezing tolerance. (more…)

Tackling Cognitive Deficits in Alzheimer’s Disease: One STEP at a Time

By Guest PostOctober 19, 2010Health, Sciencealzheimer’s disease, american health assistance foundation, national academy of sciences, paul greengard, paul lombroso, rockefeller university, yale university

Lowering levels of a key protein involved in regulating learning and memory—STtriatal-Enriched tyrosine Phosphatase (STEP)—reversed cognitive deficits in mice with Alzheimer’s disease, Yale School of Medicine researchers report in the October 18 issue of Proceedings of the National Academy of Sciences. (more…)

‘Why Our Brains Get Tripped Up When We’re Anxious’

By Guest PostSeptember 15, 2010Scienceanxiety disorders, brain mechanisms, coherent framework, cu-boulder's center, left ventrolateral prefrontal cortex, midazolam, national academy of sciences, neural inhibition, neural network simulation, neuroimaging and anxiety, yuko munakata

A new University of Colorado at Boulder study sheds light on the brain mechanisms that allow us to make choices and ultimately could be helpful in improving treatments for the millions of people who suffer from the effects of anxiety disorders.

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Tag Archives: national academy of sciences

Links in the Chain: Global Carbon Emissions and Consumption

Circadian Rhythms Spark Plants’ Ability to Survive Freezing Weather

Tackling Cognitive Deficits in Alzheimer’s Disease: One STEP at a Time

‘Why Our Brains Get Tripped Up When We’re Anxious’