Familiarity, proximity and self-injurious behaviors.

This paper introduces familiarity and proximity of direct-care staff as possible contributors to the etiology of self-injurious behaviors. Analysis suggests that research workers consider these two variables when evaluating the etiology of such behaviors with specific reference to positive and negative reinforcement paradigms.

Resistance of certain long-chain polyunsaturated fatty acids of marine oils to pancreatic lipase hydrolysis.

When whale oil triglycerides were subjected to pancreatic lipase hydrolysis, eicosapentaenoic and docosahexaenoic acids were found mainly in the di- and triglyceride products, suggesting that they are in the 1,3-positions but resistant to the action of the lipase. Their presence in the 1,3-positions was confirmed. Their resistance to pancreatic lipase hydrolysis was demonstrated by analysis of the products of the enzyme action on: (a) a concentrate of highly unsaturated whale oil triglycerides; (b) the latter after randomization; and (c) synthetic 1,2-di-octadecenoyl-3-eicosapentaenoyl glycerol.