If the specimen weight/size is 1000 g / 8.79 cm, what is the calculated activity?
create table table_26211058_1 (calculated_activity___bq__ varchar, specimen_weight_size varchar, PRIMARY KEY (calculated_activity___bq__))
select count(calculated_activity___bq__) from table_26211058_1 where specimen_weight_size = "1000 g / 8.79 cm"