The magnetic field dependence of CIDNP is presented for two reaction products of independently generated alkyl radicals. It is shown that nuclear spin relaxation of the products influences the intensity distributions within multiplets, and how this relaxation can be included in the calculation of CIDNP effects from the radical pair theory. Analysis of the experimental results supports the recen...

The DAR was established in 1972 for the purpose of collecting data on major upper and lower extremity amputations as well as details on corresponding prosthetic fitting in Denmark. During phase 1 (1972-1980) voluntary reports were submitted by surgical departments and prosthetic manufacturers, totalling about 5000. During phase 2 (1978-1984) data on all amputations in Denmark were supplied on a...

This review will describe the investigation of the mechanism of muscle contraction and cell motility from 1972 to the present. The preceding article in this issue by Andrew Szent-Gyorgyi covers the period up to 1972. In 1972 the field of actomyosin interactions was summarized in a conference at Cold Spring Harbor, published in the Cold Spring Harbor Symposia on Quantitative Biology XXXVII, 1973...

During the winter and spring of 1972-1973 it became noticeable that many more children with meningitis were being admitted to the Royal Belfast Hospital for Sick Children (RBHSC) than in previous years. Between August 1972 and August 1973 there were 83 such admissions as compared with only 20 in the same period of 1971-1972. Closer analysis of the aetiology revealed that the majority of bacteri...

Prostaglandins (PGs) can be synthesized by the testes (Ellis, 1972) and are present in the male accessory reproductive tissues and in the semen of various mammalian species (Bygdeman, Fredricsson, Svanborg & Samuelsson, 1970; Tan & Privett, 1972). Their physiological rôle in the male reproductive system is not understood but various effects of PG administration on the testes and male reproducti...

This study reports on 20 years of private social welfare spending, from 1972 through 199 1. The private sector is playing an increasingly important role in financing the Nation's aggregate social welfare programs; this section assumes a large share of health and medical care expenditures, as well as income-maintenance benefits, the latter in areas of employment-related pensions, group life insu...

Private social welfare expenditures were $680.7 billion in calendar year 1990. Viewed as a share of gross national product (GNP), private expenditures were 12.3 percent for calendar year 1990, while public expenditures for fiscal year 1990 were 19.1 percent of GNP (table 1). The private social welfare expenditure series was developed by the Social Security Administration (SSA) in 1955, with pro...