منابع مشابه
Screening for prostate cancer: Controversy? What controversy?
for the absence of a reduction in mortality in the plco trial and in comparison with the difference seen in the erspc trial. The truth of the matter is the psa test should not be used at all in screening for prostate cancer in the manner it has heretofore been used. Prostate-specific antigen, discovered in 1970 5,6 , is a normal component of the prostate. It is not cancer-specific. Rather, it i...
متن کاملGeneralized Continued Logarithms and Related Continued Fractions
We study continued logarithms as introduced by Bill Gosper and studied by J. Borwein et. al.. After providing an overview of the type I and type II generalizations of binary continued logarithms introduced by Borwein et. al., we focus on a new generalization to an arbitrary integer base b. We show that all of our so-called type III continued logarithms converge and all rational numbers have fin...
متن کاملContinued Logarithms and Associated Continued Fractions
We investigate some of the connections between continued fractions and continued logarithms. We study the binary continued logarithms as introduced by Bill Gosper and explore two generalizations of the continued logarithm to base b. We show convergence for them using equivalent forms of their corresponding continued fractions. Through numerical experimentation we discover that, for one such for...
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The US President’s annual State of the Union speech is a favorite place to unveil new initiatives. For the past several months there has been a buzz that President George W. Bush would say something dramatic about climate change. “Buzz” in Washington can mean political trial balloons, genuine leaks or simply wishful thinking. It took a while to sort out the truth in this case. The week before t...
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ژورنال
عنوان ژورنال: Nature Biotechnology
سال: 1990
ISSN: 1087-0156,1546-1696
DOI: 10.1038/nbt0490-357b