Tag Archives: acc

Scientists Cast Doubt on Theory of What Triggered Antarctic Glaciation

AUSTIN, Texas — A team of U.S. and U.K. scientists has found geologic evidence that casts doubt on one of the conventional explanations for how Antarctica’s ice sheet began forming. Ian Dalziel, research professor at The University of Texas at Austin’s Institute for Geophysics and professor in the Jackson School of Geosciences, and his colleagues report the findings today in an online edition of the journal Geology.

The Antarctic Circumpolar Current (ACC), an ocean current flowing clockwise around the entire continent, insulates Antarctica from warmer ocean water to the north, helping maintain the ice sheet. For several decades, scientists have surmised that the onset of a complete ACC played a critical role in the initial glaciation of the continent about 34 million years ago. (more…)

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Choosing Microsoft Over the NFL

*Albert Rocker found himself at a crossroads of two big dreams: The Georgia Tech athlete had to choose between playing a final year of college football for a shot at the National Football League, or accepting a job offer from “the biggest software company ever created.”*

REDMOND, Wash. – It was the toughest decision of Albert Rocker’s life: should he pursue a career in the National Football League (NFL), or one at Microsoft?

At the Georgia Institute of Technology, Rocker was an outside linebacker for the Yellow Jackets football team with one year of eligibility remaining – one last football season to woo the NFL. Rocker played in a total of 38 games over his college career, including all 13 games of his junior season in 2010 – he was set to be a starter if he returned for his last year of eligibility. (more…)

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Significant Role of Oceans in Onset of Ancient Global Cooling

*Evidence that early Antarctic Circumpolar Current development affected global climate*

Thirty-eight million years ago, tropical jungles thrived in what are now the cornfields of the American Midwest and furry marsupials wandered temperate forests in what is now the frozen Antarctic.

The temperature differences of that era, known as the late Eocene, between the equator and Antarctica were half what they are today. (more…)

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U of T Researcher Discovers Way to Zip Away Chronic Pain

*Peptide inhibitor called ZIP may be instrumental* 

Research from the University of Toronto suggests that a peptide inhibitor called ZIP could be crucial in zipping away some kinds of chronic pain. 

The new research, led by Professor Min Zhuo of the University of Toronto’s Department of Physiology and published in the current edition of the journal Science, explores the role that the protein kinase M zeta (PKMζ) plays in storing “memories” of pain and therefore enhancing the sensation of pain. Blocking the effect of PKMζ through the use of a selective inhibitor called ζ-pseudosubstrate inhibitory peptide – or ZIP — blocked behavioral sensitization and nerve injury related to chronic pain.  (more…)

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