Factors that regulate the amount of viable tumor an animal can support have been studied in rats bearing Walker carcinoma 256. There is a maximum amount of viabletumor an animal can support, but continued growth of tumor resulting in increase in the amount of necrotic tumor occurs until death of a rat bearing Walker carcinoma 256. The number and location of tumors in an animal do not significan...

BACKGROUND Keelung City has the highest suicide rate in Taiwan. This study aimed to determine whether meteorological and socio-economic factors are associated with suicide mortality in Keelung City, by gender and by means of suicide. SUBJECTS AND METHODS Data on suicides between January 2006 and December 2010 were provided by the Department of Health, Keelung City Government. The suicide vict...

A sealed atmosphere in a mined-out area of an underground coal mine is simply a volume with homogeneous composition governed by boundary conditions. This paper presents a mathematical model based upon the conservation of mass principle that describes the flow of air (nitrogen and oxygen), methane and carbon dioxide into and out of a sealed atmosphere and the time-dependent changes in gas concen...

This study used spectral analysis in 2 separate experiments to examine feeding and lying behavior of Bos taurus steers under 2 housing treatments: a feedlot yard stocked at 12.0 m2 per head with a dry, firm pen surface (NDF) and a "high density" (HDF) feedlot yard stocked at 6.0 m2 per head with a wet and muddy feedlot pen surface. The study conducted 1 experiment in Autumn, another in Spring. ...

This paper reviews thermal problems in hyperbaric environments and provides information how to estimate thermal comfort zones in hyperbaric environments. Divers are exposed to hyperbaric helium-oxygen atmospheres when engaged in saturation diving operations. However, some difficulties to control thermal environments arise from the extremely high thermal conductivity of helium used as a breathin...