The recent discoveries of algorithms for three dimensional reconstructions from projections (Cormack, 1963; De Rosier & Klug, 1968; Crowther, De Rosier & Klug, 1970; Vainshtein, 1970; Gordon, Bender & Herman, 1970; Berry & Gibbs, 1970; Ramachandran & Lakshminarayanan, 1971; Goitein, 1971; Matulka & Collins, 1971; Gilbert, 1972; Cormack, 1973; Sweeney & Vest, 1973; Smith,.Peters & Bates, 1973) a...

There is increasing evidence that olfactory neurons can differentiate from the basal cells of the olfactory neuroepithelium in normal adult vertebrates (Nagahara, 1940; Andres, 1965; Thornhill, 1970; Takagi, 1971 ; Moulton, 1971 ; Graziadei, 1971, 1973 ; Graziadei et al ., 1971 ; Graziadei et al ., 1972). Autoradiography at both the light microscope and the transmission electron microscope leve...

Esters of phthalic acid are extensively used as industrial solvents and plasticizers in the manufacture of a wide variety of plastics, including food-packaging materials. When administered orally to the rat, the metabolites in urine of a number of phthalate diesters appear as derivatives of the corresponding monoesters (Albro et al. 1973; Albro & Moore, 1974). Further, the most commonly used ph...

Between 1973 and 1987, men's average earnings declined and the percentage of men with low earnings (defined as annual earnings less than $12,000 a year) increased for whites, blacks, and Hispanics. We estimate regression models for the level and distribution of male earnings for each of these three groups using data from the 1974, 1980, and 1988 March Current Population Surveys. Much of the dec...

THIS is the second retrospective survey of the work of the Mycological Diagnostic Service since its establishment in 1959. Its purpose is to review the isolation of dermatophytes (ringworm fungi) of both human (anthropophilic) and animal (zoophilic) origin in Northern Ireland over the period 1967 to 1973, and to compare the findings with previous reports for the province (Mackenzie and Rusk, 19...

(Z. Naturforsch. 28 a, 1543-1553 [1973] ; received 7 May 1973) Nonequilibrium alignment phenomena in gases of polyatomic molecules (Senftleben-Beenakker effect, flow birefringence) have been studied extensively during the last decade. Similar effects should also exist for atoms with nonzero electronic orbital angular momentum. The WaldmannSnider equation (considered as Boltzmann equation for re...