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If the material involved is not hazardous , it simply can be cleaned up by normal operations such as brushing or mopping up the spill . New ventures demand first-class energies , first-class enthusiasm , first-class intelligence and alertness , so you need to be able to leave your pres-ent position and live for perhaps six months to two years , depending on the nature of that venture , while it 's being pursued . Chances are some CEOs with a lot of stock are quietly hedging away 20 percent or more of their holdings , according to a study under way by the School ’ s Alan Jagolinzer , an assistant professor , and Larcker , the James Irvin Miller Professor of Accounting.The rise of corporate governance as a topic of study , many say , traces back to a seminal study in 1932 by lawyer Adolf Berle and economist Gardiner Means , who laid out in The Modern Corporation and Private Property the way in which the stockholding owners of powerful corporations , such as automobile makers , had become separated from the controllers , or management , of the corporations . High geothermal heat flux keeps the caldera free of permanent ice and snow , so that essentially year-round observations by remote sensing may be possible .