Castration resistant prostatic carcinoma (CRPC) is defined as tumor progression despite an effective castration (serum testosterone levels < 50 ng/dL). Biochemical progression requires at least two successive increases from the previous lowest value of serum prostate-specific antigen (PSA) spaced at least a week, and with a minimum value of 2 ng/mL. In patients receiving complete androgen blockade, antiandrogen should be discontinued prior to diagnosis of CRPC.
View Article and Find Full Text PDFBased on the "utilitarian core hypothesis" that the most common words of a language develop early and resist change, the current exploratory study examined three test cases to suggest what happens to the common core of a language when its speakers are conquered. Whissell (1998) raised this issue by implication through demonstrating that the common core of English is largely Anglo-Saxon and thus survived the Norman Conquest. The notion that unique merits of English accounted for its success has a long history dating at least to Verstegan (1605/1976).
View Article and Find Full Text PDFPhys Rev B Condens Matter
January 1995