Acute postoperative pain is an ongoing issue for postsurgical patients. It is crucial to understand and recognise issues that can adversely contribute to increased pain severity.

was purified 80-fold from the yeast Kluyveromyces lactis induced for this enzyme by growth on lactose. When the purified enzyme was subjected to electrophoresis on an acrylamide gel in the presence of sodium dodecyl sulfate, one protein with an apparent molecular weight of 135,000 was observed. The enzyme has a sediimentation coefficient of 9.68. This I)galactosidase and the one from Escherichia coli are not antigenically related. Maximal enzyme activity requires Na+ and Mn2' and a reducing agent. ft-Galactosidase has Km values of 12 to 17 and 1.6 mM for lactose and o-nitrophenyl-fB-D-galactoside, respectively. The hydrolase and transgalactosylase activities of the enzyme are similar to those of E. coli ,B-galactosidase.

Among 375 children and adolescents admitted to a psychiatric hospital inpatient unit, the proportion of adopted children was considerably higher than that of a general pediatric population or of census figures, and the majority of nonadoptees were from disrupted homes. Based on a review of case records, adoption and family disruptions appear to increase significantly the length of hospitalization and to shift diagnoses toward behavioral disturbances. Implications for prevention and treatment are considered.

No abstract

RI, the El revertant RI; R2, the El revertant R2; +, the New Jersey wild type; R5, the El revertant R5; R6, the El revertant R6; +, the New Jersey wild type; El, the ts mutant El. The identification of the structural proteins is given on the right. The designations are from top to bottom: L, the large protein required for transcription (molecular weight, 190,000); G, the surface glycoprotein (molecular weight, 70,000); NS, the phosphorylated protein required for transcription; N, the structural protein of the ribonucleoprotein core (molecular weight, 50,000); X, a minor phosphorylated component; and M, the matrix protein (molecular weight, 30,000).