Titration of human placental alkaline phosphatase with radioactive orthophosphate

Life Satisfaction among the Poorest of the Poor: A Study in Urban Slum Communities in India

This study investigates the level and predictors of life satisfaction in people living in slums in Kolkata, India. Participants of six slum settlements (n = 164; 91% female) were interviewed and data on age, gender, poverty indicators and life satisfaction were collected. The results showed that the level of global life satisfaction in this sample of slum residents did not significantly differ from that of a representative sample of another large Indian city. In terms of life-domain satisfaction, the slum residents were most satisfied with their social relationships and least satisfied with their financial situation. Global life satisfaction was predicted by age, income and non-monetary poverty indicators (deprivation in terms of health, education and living standards) (R2 15.4%). The current study supports previous findings showing that people living in slums tend to report higher levels of life satisfaction than one might expect given the deprivation of objective circumstances of their lives. Furthermore, the results suggest that factors other than objective poverty make life more, or less, satisfying. The findings are discussed in terms of theory about psychological adaptation to poverty.

An active site peptide from human placental alkaline phosphatase

A preparation of human placental alkaline phosphatase was labelled covalently at the active site with [32P]orthophosphate. Treatment with trypsin gave essentially one radioactive peptide, the active site peptide, of approximately 2300 molecular weight. Dansylation of the peptide showed that the amino-terminal residue was glycine. After acid hydrolysis the only radioactively-labelled amino acid present was serine phosphate. The amino acid composition was similar to those compositions reported for active site peptides from other alkaline phosphatases.