Springer sep 1976 (2 Ergebnisse)

Taschenbuch. Zustand: Neu. Neuware - The general discussions of the roles of photometric and spectroscopic classification at Cordoba in 1971 (lAU Symposium No. 50), and of the calibration of classification indices at Geneva in 1972 (IAU Symposium No. 54), revealed clearly the steadily in creasing importance of abundance parameters. The multipliCity of these, however, raised so many new problems that it was logical that the 1975 meeting at Lausanne should be concerned with ways in which differences in abundance affect both spectral types and photometric indices. Commissions 29 and 36 joined with Commission 45 in sponsoring this Symposium. Since the date of the meeting came shortly after the formal retirement of Professor William W. Morgan from the University of Chicago, it was quickly agreed that this meeting should be dedicated to him in recognition of his unique contributions to spectral classification. In the opening paper of the Symposium Dr. Bengt Stromgren has summarized these. To his remarks we should add only that it was about 1940 that Morgan first distinguished the group of G- and K-type stars with weak CN bands and metallic lines - stars which have since been recognized as having the abundance of all metals relative to hydrogen much lower than in stars of the solar population. Spectra of two of these, HD 81192 (Boss 2527) and 8 Lep, were later shown as examples of the group in the Yerkes Atlas of 1943.…

Buch. Zustand: Neu. Neuware - The first three volumes of this series have dealt with materials which generally justify the title, The Biology of Alcoholism. This is only remotely true of the present volume, Social Aspects of Alcoholism, or of the final volume to come, Treatment and Rehabilitation. Except for small portions of the treatment section which involve pharmacotherapy, much of these last two volumes deals with the psychological aspects of alcoholism and still more with the social. It is interesting to review the evolution of this new pattern over the past seven years, a pattern which, had it existed initially, would have resulted, if not in a dif ferent format, at least in a different title. Our initial selection of areas to be covered was influenced by our desire to present as 'hard' data as possible, in an attempt to lend a greater aura of scientific rigor to a field which was generally considered as 'soft. ' When we completed our review of this material in volumes 1-3, we recognized that what we might have gained in rigor, we had more than lost in completeness. These volumes presented a picture of a biological disease syndrome for which the remedies and preventive measures were presumably also biological. And yet, most workers in the field readily accept the significant contributions of psychological and social factors to the pathogenesis and treatment of alcoholism. …