Abstract: An information processing system, which determines a partial area used in an erectness determination which determines whether a determination target image is erect based on a determination feature in the partial area in an image having a predetermined format and a position of the partial area in a state in which the image having the predetermined format is erect, includes processor to receive input of a plurality of learning images having the predetermined format, extract area common to the plurality of learning images in an erect state as a candidate for the partial area, determine common area reliability indicative of a degree to which the candidate for the partial area is suitable as the partial area used in the erectness determination, and determine the partial area used in the erectness determination from the candidate for the partial area, based on the common area reliability.

Abstract: An information processing system, which determines a partial area used in an erectness determination which determines whether a determination target image is erect based on a determination feature in the partial area in an image having a predetermined format and a position of the partial area in a state in which the image having the predetermined format is erect, includes processor to receive input of a plurality of learning images having the predetermined format, extract area common to the plurality of learning images in an erect state as a candidate for the partial area, determine common area reliability indicative of a degree to which the candidate for the partial area is suitable as the partial area used in the erectness determination, and determine the partial area used in the erectness determination from the candidate for the partial area, based on the common area reliability.

Abstract: It is intended to provide a food for testing life style-related diseases which is in the form of a food easy to ingest, differing from the existing medicines such as Trelan G, and makes it possible to simultaneously and easily perform a glucose tolerance test and examine oral glucose tolerance, heperlipemia after meal and so on. Namely, a test food for testing metabolic factors causing life style-related diseases which contains 100 parts by weight of carbohydrate and from 20 to 40 parts by weight of fat. It contains from 73 to 77 g of carbohydrate and from 15 to 30 g of fat, in terms of a single test dose, and provides from 460 to 600 kcal. This test food is usable in testing many items for diabetes, obesity, circulatory diseases, hyperlipemia, hyperuricemia, hyperinsulinemia and hypertension.

Abstract: This invention relates to a composition for determining .beta.-hydroxybutyric acid, usable for doctors, nurses, and patients themselves simply and quickly without use of special instruments, and also relates to a method for preparing the said composition.The composition of the invention oxidizes .beta.-hydroxybutyric acid under alkaline conditions and the presence of nicotineamide adenine dinucleotide (NAD) by .beta.-hydroxybutyric acid dehydrogenase, and the produced reduction-type NAD (NADH) reduces tetrazolium salt through an electron carrier to produce formazan developing color. The composition permits accurate measurement quickly and simply, and has excellent conservative stability, because it is a uniform solid-phase composition prepared by applying reagents necessary for the reaction of film impermeable to water together with a natural or synthesized film forming polymer.

Abstract: Reagents for enzyme immunoassay for apolipoprotein B comprising human apolipoprotein B as a standard antigen, peroxidase-labeled Fab' as an antibody, IgG-coated polystyrene balls, a coloring or fluorescent reagent, hydrogen peroxide as a reaction substrate, a reaction stopper, and buffer solutions.Use of these reagents permits accurate and prompt quantification of apolipoprotein B concentration in serum.