IN 1950 Ledlie and Harmer published a report on 800 patients with cancer of the mouth seen at the Royal Marsden Hospital (then the Royal Cancer Hospital) between January, 1936, and December, 1945, with a minimum follow-up period of 3 years. These same patients have been reviewed again up to the end of December, 1956, the minimum follow-up period being 11 years. The success or failure of the fir...

Abstract Three local bifurcations in DC-DC converters are reviewed. They are period-doubling bifurcation, saddle-node bifurcation, and Neimark bifurcation. A general sampled-data model is employed to study types of loss of stability of the nominal (periodic) solution and their connection with local bifurcations. More accurate prediction of instability and bifurcation than using the averaging ap...

Values for the strength of sea ice are extremely sparse in the literature, and available values show a wide, unexplained variation. Results of in-place cantilever beam tests presented in this paper show a definite relationship between fl,exural strength and brine content. Values for Young's modulus are also experimentally determined. It is shown that the bearing capacity of a sea-ice sheet is d...

The analysis error variance of a 3D-FGAT assimilation is examined analytically using a simple scalar equation. It is shown that the analysis error variance may be greater than the error variances of the inputs. The results are illustrated numerically with a scalar example and a shallow-water model. Copyright c © 0000 Royal Meteorological Society

To the Editor: Rabies has occurred in China for >2,000 years and was first described in ≈556 BC (1). Since 1950, human rabies has been a class II noti-fiable disease in China, and the annual number and distribution of human rabies cases have been archived. We examined the archived data from 1950 to 2004 and analyzed epidemiologic characteristics. During the 55-year period, 108,412 human rabies ...

Purpose: The sources of economic growth include capital, labor and the Solow surplus, dedicated to study (1956). surplus is inexplicable part with capital expressed as technological advances. also means total factor productivity (TFP). In other words, explained by TFP depending on technology from past present. These days, digitalization known be new revolution. light this concept, aims demonstr...

Particle filters are fully non-linear data assimilation techniques that aim to represent the probability distribution of the model state given the observations (the posterior) by a number of particles. In high-dimensional geophysical applications the number of particles required by the sequential importance resampling (SIR) particle filter in order to capture the high probability region of the ...