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Gastric cancer is the second most frequent cause of death from cancer in the world and the leading cause of death from cancer in China. In September 1995, we launched a randomized multi-intervention trial to inhibit the progression of precancerous gastric lesions in Linqu County, Shandong Province, an area of China with one of the world's highest rates of gastric cancer. Treatment compliance was measured by pill counts and quarterly serum concentrations of vitamin C, vitamin E and S-allyl cysteine. In 1999, toxicity information was collected from each trial participant to evaluate treatment-related side-effects during the trial. Compliance rates were 93% and 92.9% for 39 months of treatment with the vitamins/mineral and garlic preparation, respectively. The means for serum concentrations of vitamins C and E were 7.2 microg/ml and 1695 microg/dl among subjects in the active treatment groups compared with 3.1 microg/ml and 752 microg/dl among subjects in the placebo treatment group, respectively. No significant differences in side-effects were observed between the placebo treatment group and the vitamins/mineral and garlic preparation treatment groups during the 39-month trial period.

A critical-state model with Jc(H)=α/H has been developed for cylindrical geometries. It qualitatively describes the shape of magnetization curves obtained on multifilamentary superconducting wire and it accurately predicts the hysteretic loss. The size dependence of the hysteretic loss for this model is essentially the same as the Bean-London model result. However the maximum magnetization for this model is proportional to R1/2. The temperature dependence of the hysteretic loss and α have been determined from magnetization data for NbTi wire.

The temperature dependence of the saturation magnetization and the first and second anisotropy constants have been determined for alloys in the system PrxSm1−xCo5. The alloys studied were spheres cut from single crystals grown by the Bridgeman drop technique. Measurements were made on a Foner vibrating sample magnetometer. The anisotropy constants were calculated statistically from hard direction magnetization data by the method of Sucksmith and Thompson. Ms, K1, and K2 for PrCo5 were found to be larger than previously reported values at low temperatures. PrCo5 and Pr0.75Sm0.25 are both magnetically easy come at low temperatures. K2 increases with increasing Sm content in the Pr-rich alloys. However, K2 values for the Sm-rich alloys are anomalously large.