نتایج جستجو برای: doubling time

تعداد نتایج: 1900123  

Journal: :HPB Surgery 1994
Kunio Okuda

(1989) A comparison between operative and non-operative management of blunt injuries to the liver and spleen in adult and pediatric patients. Management of blunt trauma to the liver and hepatic veins. Natural history of small untreated hepatocellular carcinoma in cirrhosis: A multi-variate analysis of prognostic factors of tumour growth rate and patient suroival. We analyzed the growth pattern ...

Journal: :Journal of investigative medicine : the official publication of the American Federation for Clinical Research 2016
Edward Uchio Mihaela Aslan John Ko Carolyn K Wells Krishnan Radhakrishnan John Concato

Changes in prostate-specific antigen (PSA) values are often reported as velocity or doubling time. We compared the association of these two calculations-at the time of PSA failure after primary treatment for prostate cancer-with prostate cancer mortality. From a source population of 1313 US Veterans with prostate cancer, including 623 treated with curative intent, the study population included ...

Journal: :Proceedings of the American Mathematical Society 1998

Journal: :Anticancer research 2010
Anton Ponholzer Nikolaus Popper Felix Breitenecker Hans-Peter Schmid Walter Albrecht Wolfgang Loidl Stephan Madersbacher Paul Schramek Axel Semjonow Michael Rauchenwald

PURPOSE Prostate-specific antigen (PSA) doubling-time (PSA-DT) is an important indicator of progression and survival in men with prostate cancer. Three major limitations regarding PSA-DT determination may lead to inconsistent results: the variety of mathematical methods currently applied, the non-standardized handling of input variables and the potential lack of accuracy due to PSA variability....

2004
András Telcs

This paper studies the onand off-diagonal upper estimate and the two-sided transition probability estimate of random walks on weighted graphs.

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2014
André L P Livorati Orestis Georgiou Carl P Dettmann Edson D Leonel

We investigate the escape dynamics of the doubling map with a time-periodic hole. Ulam's method was used to calculate the escape rate as a function of the control parameters. We consider two cases, oscillating or breathing holes, where the sides of the hole are moving in or out of phase respectively. We find out that the escape rate is well described by the overlap of the hole with its images, ...

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