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Since the publication of my monograph "Die submikroskopische Struktur des Cytoplasm as" [Protoplasmatologia III A12 (1955)], science has increased our knowledge on this cell constituent in an amazing way. At that time, cytoplasm was still considered as an amorphous colloid with an amicroscopic structure capable of sol/gel transformations. Meanwhile, within the past 18 years, ultrastructure research and molecular biology have shown that it consists of structured organelles, thereby revolutionizing our concept of the cytoplasm. There is an ontogeny of these organelles which deals with their appearance, development, growth and eventual disappearance. Although the results of relevant studies are less spectacular at this time than those concerning nucleic acids, they will become more and more important in the near future, because they touch the basic question of how molecular morphogenesis is realized. Therefore, an attempt is made to portray the actual state of these problems from a biological point of view which involves a comparison of the established organelles. I thank Miss SONIA TURLER and Dr. ELsA HAUSERMANN for their help with the manuscript and my former pupils and assistants Drs. Kopp, KUHN, SCHWARZENBACH, STAEHELIN, STEINMANN, and VOGEL, as well as my colleagues Professors MATILE, MooR, and MUHLETHALER for original electron micro graphs.
Dünnschliffe - Bodenstrukturen - Geologie.
The past two decades have witnessed a truly phenomenal growth and expansion in our knowledge of the principles and mechanisms of in heritance. :\iolecular and microbial genetics, for all purposes non-existent at the outset of this period, have developed and flourished to the extent of becoming major branches of genetics from which the most exciting and edifying concepts of gene function and structure have been derived. Similarly, man, heretofore a genetic curiosity, has become in his own right a genetic organism of first rank importance. It is, therefore, not without reason that accompanying the rapid proliferation of genetic knowledge, a parallel increase has occurred in the technical nomen clature and terminology special to the field of genetics and often special to specific branches of genetics. In preparing this glossary of ca. 2500 entries, we have attempted to compile and collate the terminology from seemingly unrelated, widely separated branches of genetics - classical and molecular; microbial and human; cytogenetics and population genetics. We have not been content merely to collect terms and definitions much as is found in a dictionary. Rather our aim has been to provide material suitable and usable both for students and research workers. Accordingly, depending upon our evaluation, some terms have simply been defined, others have been described at some length even to the extent of providing experi mental data.
The story of DNA from the time of its discovery in 1869 up to the solution of the genetic code in the 1960s.
Who pays for science, and who profits? Historians of science and of France will discover that those were burning questions no less in the seventeenth century than they are today. Alice Stroup takes a new look at one of the earliest and most influential scientific societies, the Acad�mie Royale des Sciences. Blending externalist and internalist approaches, Stroup portrays the Academy in its political and intellectual contexts and also takes us behind the scenes, into the laboratory and into the meetings of a lively, contentious group of investigators. Founded in 1666 under Louis XIV, the Academy had a dual mission: to advance science and to glorify its patron. Creature of the ancien r�gime as well as of the scientific revolution, it depended for its professional prestige on the goodwill of monarch and ministers. One of the Academy's most ambitious projects was its illustrated encyclopedia of plants. While this work proceeded along old-fashioned descriptive lines, academicians were simultaneously adopting analogical reasoning to investigate the new anatomy and physiology of plants. Efforts to fund and forward competing lines of research were as strenuous then as now. We learn how academicians won or lost favor, and what happened when their research went wrong. Patrons and members shared in a new and different kind of enterprise that may not have resembled the Big Science of today but was nevertheless a genuine "company of scientists."