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BACKGROUND Improved understanding of prostate cancer radiobiology combined with advances in delivery of radiation to the moving prostate offer the potential to reduce treatment-related morbidity and maintain quality of life (QOL) following prostate cancer treatment. We present preliminary results following stereotactic body radiotherapy (SBRT) treatment for(More)
Two types of state-switching models for U.S. real output have been proposed: models that switch randomly between states (as in Hamilton (1989)) and models that switch states deterministically, as in the threshold autoregressive model of Potter (1995). These models have been justified primarily on how well they fit the sample data, yielding statistically(More)
BACKGROUND Stereotactic body radiotherapy (SBRT) may yield disease control for prostate cancer in a brief, hypofractionated treatment regimen without increasing treatment toxicity. Our report presents a 6-year update from 304 low- (n = 211), intermediate- (n = 81), and high-risk (n = 12) prostate cancer patients who received CyberKnife SBRT. METHODS The(More)
This study examines the efficacy and toxicity of two stereotactic body radiation therapy (SBRT) dose regimens for treatment of early prostate cancer. Forty-one patients treated with 35 Gy were matched with 41 patients treated with 36.25 Gy. Both patient groups received SBRT in five fractions over five consecutive days using the CyberKnife. Each group had 37(More)
BACKGROUND Originating from Africa, India, and the Middle East, frankincense oil has been important both socially and economically as an ingredient in incense and perfumes for thousands of years. Frankincense oil is prepared from aromatic hardened gum resins obtained by tapping Boswellia trees. One of the main components of frankincense oil is boswellic(More)
  • Sumru Altu¸g, Richard A Ashley, Douglas M Patterson, Susanto Basu, Alpay Filiztekin, James Ramsey +1 other
  • 1996
and anonymous referee for helpful comments and M.J. Hinich and B. LeBaron for sharing their computer codes with us. Special thanks goes to Gerard Pfann, who provided us with the simulated data from the asymmetric adjustment cost model. Abstract This paper examines the behavior of postwar real U.S. GNP, the inputs to an aggregate production function, and the(More)
A single statistical test for nonlinearity can indicate whether or not the generating mechanism of a time series is or is not linear. However, if the null hypothesis of linearity is rejected, the test result conveys little information as to what kind of nonlinear model is appropriate. Here we show that a battery of different nonlinearity tests, in contrast,(More)
Structural breaks and switching processes are known to induce apparent long memory in a time series. Here we show that any significant time variation in the mean renders the sample correlogram (and related spectral estimates) inconsistent. In particular, smooth time variation in the mean—i.e., even a weak trend, either stochastic or deterministic—induces(More)
In 20 normal subjects, sounds or vibrational signals were recorded from the biceps brachii muscle during voluntary isometric contraction. Fourier analysis showed presence of predominantly low frequency components with little contributions beyond 60 or 70 Hz. Relatively high amplitude peaks occurring below 20 Hz were seen in the frequency spectrum with the(More)