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The waiver of the predominant-use study requirement for qualifying industries is applicable to any period not barred by statute . If Earth had a highly elliptical orbit rather than relatively circular one , its temperature swings would be so extreme that humans and other complex organisms might not have evolved . Also , if there is a disk of material swirling around Sagittarius A * , it might be unstable in such a way that material migrates toward the black hole 's edge in clumps , emitting X-rays before disappearing from the universe forever . Subsection ( e ) ( 5 ) implements a policy change that waives the requirement for a predominant-use study for companies that are in an industry for which an industry-wide study reflects that the natural gas or electricity used by companies in that industry will always qualify as exempt use . In a third paper , led by the Danish team and released this week , the many new theories that have been proposed to explain the acceleration of the universe are critically assessed in the face of this new data . The transaction did not result in the direct write-off of the assets nor did it represent a permanent decline in the value of those assets .