Some physico-chemical properties of mouse red cells and hemoglobin

Zusammenfassung Hämoglobin und Erythrozyten von prä- und postnatal untersuchten Inzuchtmäusen verhalten sich, was verschiedene physikalisch-chemische Analysen betrifft, ähnlich. Die Existenz eines fötalen Hämoglobins konnte nicht bewiesen werden.

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This investigation was supported by a grant from the National Institutes of Health, P.H.S. C-4691.     

On the heterogeneity of skeletal muscle fibers: The intermediate fibers

Résumé Les mesures d'intensité de la réaction à la succino-déshydrogénase et de la surface des fibres des muscles quadriceps et soléaire chez le rat nous ont permis d'individualiser un groupe de fibres intermédiaires qui se situe entre les fibres rouges (type I) et blanches (type II). Les fibres intermédiaires ont une activité enzymatique et une population mitochondriale distinctes, une taille moyenne et une teneur élevée en glycogène.     

Chemical reductionism revisited: Lewis, Pauling and the physico-chemical nature of the chemical bond

The wave-mechanical treatment of the valence bond, by Walter Heitler and Fritz London, and its ensuing foundational importance in quantum chemistry has been traditionally regarded as the basis for the argument that chemistry may be theoretically reduced to physics. Modern analyses of the reductionist claim focuses on the limitations to achieving full reduction in practice because of the approximations used in modern quantum chemical methods, but neglect the historical importance of the chemical bond as a chemical entity. This paper re-examines these arguments with a study of the development of the valence bond by chemist Gilbert Lewis within a chemically autonomous framework, and its extension by Linus Pauling using Heitler and London’s methods. Here, we see that the chemical bond is best described as a theoretical synthesis or physico-chemical entity, to represent its full interdisciplinary importance from the philosophical and historical perspectives.     

Isolation and characterization of a cystine-containing octapeptide from silk

Zusammenfassung Isolierung und Strukturaufklärung eines Oktapeptides aus Seidenfibroin ausBombyx mori.     

The influence of caffeine on the sodium efflux in barnacle muscle fibers

Zusammenfassung Nachweis, dass Coffein zunächst den Auswärtstrom von Na-Ionen aus Einzelfasern der Bernakelmuskeln verringert, ihn hernach aber zu steigern vermag.