hevesy hahn (4 Ergebnisse)

Zustand: Near Fine. Kobenhavn 1941 first edition. Det. Kgl. Danske Videnskabernes Selskab. XVI, 1. Octavo, 27p., original printed wraps. Geological Society name stamped on cover. Near Fine, just fading of green cover color along spine. No owner marks; no wear. Hevesy won Nobel in Chemistry in 1943.

Zustand: VG. Kobenhavn 1940 first edition. Det. Kgl. Danske Videnskabernes Selskab. VIII, 6. Octavo, 60p., original printed wraps. Geological Society name stamped on cover. VG. Hevesy won Nobel in Chemistry in 1943.

Zustand: Near Fine. Kobenhavn 1937 - 1940. All octavo wraps. All from Det Kgl. Danske Videnskabernes Selskab. Biologiske Meddelelser. All in Near Fine condition. Range from 24 to 60 pages per monograph. Some text illus. Largely uncut. Most have small old library name stamp on cover or tp. All in English. Titles in lot: Studies on the Metabolism of Phosphorus in Animals (1937); Origin of Phosphorus Compounds in Hens' Eggs (1938); Excretion of Phosphorus (1939); Rate of Renewal of Acid Soluble Organic Phosphorus (1940); Interactcion of Plasma Phosphate (1939); Turnover of Lecithin, Cephalin (1940). Geroge de Hevesy was awarded the Nobel in Chemistry in 1943. Six pamphlets:

Skand. Arch. Physiol., 77/1-4. - Berlin & Leipzig, Walter de Gruyter, 1937, 8°, 178 pp., 19 Fig., orig. broschiertes, unafigeschnittenes, verlagsfrisches, Exemplar. First Print! Georg von Hevesy (1885-1966), Hungarian physicist and chemist. He received the 1943 Nobel Prize in Chemistry for his work on the use of isotopes as tracers in studying chemical processes. Hevesy was the first to apply the radioactive tracer technique to biology, and he later used it in medical research. He also discovered X-ray fluorescence analysis. He was codiscoverer of hafnium, element 72 in the periodic table. Hevesy became an associate of the Institute of Theoretical Physics, Copenhagen, in 1920 and also of the Institute for Research in Organic Chemistry, Stockholm, in 1943. "It is generally assumed that no regeneration of the brain tissue of'adult animals takes place. To test the validity of this assumption we investigated whether any formation of phosphatides takes place in the brain tissue of adult animals. This problem-cannot be attacked by ordinary chemical methods because these do not permit the making of a distinction between phosphatide molecules formed at different dates; this is, however, possible if we introduce a labelled phosphate into the animal body (Chievitz and Hevesy, 1935, 1937), labelled sodium phosphate for example, and investigate whether the formation of labelled phosphatides can be established in the brain of the animal. We carried out experiments on rats, mice, and rabbits." Hahn & Hevesy.