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What Goes Down Must Come Up.
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متن کاملWhat Goes Up Must Come Down, Eventually
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متن کاملWhat Goes up Must Come Down. . . but Is It Reversible?
Introduction Reversibility is of concern to every conservator, and it may not be an exaggeration to say that it is the most basic of all of the concerns that conservators have. The reasons for this concern need not be discussed here, as they are well known in the profession. In fact, the general concept is one that can be readily explained to an intelligent lay person. What is perhaps less appa...
متن کاملBack down to Earth
About a decade ago, systems biology hit the life sciences with the promise that it would revolutionize biological research and create new products, drugs and therapies along the way. As with so many over-hyped ‘breakthroughs’, it inevitably failed to deliver, prompting criticism from a number of eminent biologists. Nobel Prize winner Sydney Brenner, for example, accused systems biologists of us...
متن کاملWhat Goes Up Must Come Down? An Economic Analysis of Peak Oil∗
While world oil production and reserves have been increasing since 1859, ‘peak oil’ analysts claim that production is on the cusp of a period of sustained decline. I first subject the peak oil model to a number of robustness tests. The peak oil assumption of a linear relationship between the ratio of production to cumulative production and cumulative production is rejected using data from diffe...
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ژورنال
عنوان ژورنال: Nature
سال: 1999
ISSN: 0028-0836,1476-4687
DOI: 10.1038/21518