George hevesy (26 Ergebnisse)

Zustand: New. In English.

Zustand: Acceptable. 24 cm; 252 pages. Cloth. Ex library, with bookplates, perforation stamp, and due-date form. Upper hinge weak.

Zustand: New. In English.

Org.-Ganzleinen mit Org.-SU. Oktav, vii, [1], 447 S., Umschlag stärker berieben und unfrisch, oberes Kapital etwas bestoßen, sonst einwandfrei. First edition. Original full cloth in original dustwrapper. Wrapper with wears to surface and margins. Upper spine slightly bumped. A very good copy, except for the wrapper. First edition. Original full cloth in original dustwrapper. Wrapper with wears to surface and margins. Upper spine slightly bumped. A very good copy, except for the wrapper. 2000 g.…

Hardcover. Zustand: Good. No Jacket. Second Edition. Translated by Robert lawson, covers worn, binding skewed, endpapers discoloured, previous owners name ffep otherwise unmarked, 306pp, G/--. Book.

Second edition. 8vo. xvi, 306 pp. 5 plates, 54 figs., 55 tables. Blue cloth, gilt-stamped spine title. Ink signature of Albert M. Potts on title-page. Fine.

1st edition. 8vo. xix + 252pp. 7 b/w. plates, text figures. Ex-library, with occasional inkstamps, a few light pencil markings, bookplate, slightly rubbed original navy cloth with accession number to tail of spine. US$22.

Hardcover. Zustand: Fine. Zustand des Schutzumschlags: Fine DJ. First Edition, First Printing. 465 Pp. Hardcover, Blue Cloth, First Printing. Fine In Fine Dust Jacket.

8vo. xvi, 556 pp. Very large folding isotope chart in rear pocket, 97 figs, 208 tables, index. Green cloth, black- and gilt-stamped cover and spine titles, dust jacket; jacket edges chipped. Ownership signature. Fine.

Hardcover. Zustand: Very Good. No Jacket. 1st Edition. Xix, 252 Pp. Blue Cloth, Gilt. First Printing. Light Rubbing, Gilt Bright, No Fading To Cloth, Hinges Tight. Extensive Very Old Ink Underlining And Marginalia By An Apparently Fascinated Early Reader All The Way Through The Book, But No Ownership Information. Tables Throughout (illustrator).…

Zustand: Hervorragend. Zustand: Hervorragend | Seiten: 296 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar.

orig. wrappers. Zustand: Unopened. Minor wear. VG. 24x16cm, Mitterlungen aus dem Institut für Radiumforschung, no LXVI. Offered here is the complete volume of "Sitzungsberichte der kaiserlichen Akademie der Wissenschaften", 123. Band, 9. Heft, 1914 : November, pagination running 1909-2196, containing Hevesy & Paneth's paper on pages 1909 to 1928. Together, as issued, with 12 other unrelated papers. [Hevesy, 1943 Nobel Chemistry laureate, carried out the first radioactive tracer experiment with Friedrich Adolf Paneth in 1913]. …

First English edition. 8vo. xix, 252 pp. Photos, figs.; light foxing to first and last few leaves. Green cloth, gilt spine. Bookplate removed. A fine copy.

Hard Cover. Zustand: Fine. Zustand des Schutzumschlags: Good. First Edition. Original blue cloth. All edges gilt. Glassine dust wrapper with two pieces torn away.

Hardcover. Zustand: Near Fine. Zustand des Schutzumschlags: Near Fine. 1st Edition. 252 pages. First English edition, first printing. Translated from the original German by Robert W. Lawson. Written by two of the leading authorities on radioactivity. It is meant to a manual for students in physics, chemistry and medicine who wish to obtain a grounding in radioactivity. Includes photographs, illustrations, an Appendix & an Index. Fine book in a near fine dust jacket with light wear to the corners & the spine is a touch darkened, A beautiful copy. …

Zustand: Good. In dustwrapper. Pages are clean and unmarked. Your purchase helps support Sri Lankan Children's Charity 'The Rainbow Centre'. Ex-library, so some stamps and wear, but in good overall condition. Our donations to The Rainbow Centre have helped provide an education and a safe haven to hundreds of children who live in appalling conditions.…

Skand. Arch. Physiol., 72/3-4. - Berlin & Leipzig, Walter de Gruyter, 1935, 8°, pp.73-214, 44 Abbildungen, 3 Taf., orig. Broschur. First Print! "The availability of "heavy" water D20 together with the accurate methods for its determination in weak solution in H20 have opened up possibilities for the study of permeability problems. D20 and especially DHO which is predominantly present in weak solutions of heavy water behave in diffusion very nearly as normal water. The rate of diffusion of molecules in liquids depends namely in first approximation on the radius of the molecules alone. This was shown by Einstein to be the case for the movement of colloidal particles, and from the fact that numerous endeavours to separate radioactive isotopes through diffusion in liquids have failed entirely we conclude that Einsteins considerations are also applicable to the diffusion of small molecules. The radius of D20 is only 0-1 per cent larger than that of H2O molecules and the difference for DHO is still less, and we must assume that the diffusion coefficients of ordinary and heavy water will differ less than 0-1 per cent. The permeability of frogs skin has been studied before in a large number of experiments by Wertheimer, Pohle, Jurisic, Adolph and others. Without going into details we can state that on the basis of these experiments it is generally assumed that the skin allows water and certain dissolved substances to pass in, but resists in the living state the outward passage. It is claimed further (Adolph 1934) that in the living animal the nervous system influences definitely the rates of passage through the skin. ." G.v. Hevesy, et al. 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.…

1 S. Kl.-4to. Hevesy wurde 1943 der Nobelpreis für Chemie für seine Arbeiten über die Anwendung der Isotope als Indikatoren bei der Erforschung chemischer Prozesse" verliehen. Mit alt montiertem Portrait (Zeitungsausschnitt).

1 S. Visitkartenformat. Hevesy wurde 1943 der Nobelpreis für Chemie für seine Arbeiten über die Anwendung der Isotope als Indikatoren bei der Erforschung chemischer Prozesse" verliehen. Beiliegend ein Zeitungsausschnitt.

Oxford: University Press. 1926. 8vo. Publisher's green cloth, gilt lettering to spine, in scarce grey dustwrapper printed in black: pp. xix,[i[, 252, errata slip to p.1, seven photographic plates, text diagrams throughout; wrapper with short tears to hinges at head and faint toning, otherwise near fine.First edition. Translated from the first German edition of 1923 by Robert Lawson. "In the hands of the translator and the Oxford University Press, the modest, beautifully printed 'Lehrbuch der Radioaktivitat' of 1923 has become the imposing, beautifully finished, and handsome English edition of 1926; the little German two-seater is now a handsome blue Daimler saloon complete with coat-of-arms on door." (Nature 118, 475 [1926]).The Vienna-based partnership of George de Hevesy (1885-1966) and Fritz Paneth (1887-1958) is known for three feats: the 1913 discovery of the radioactive tracer principle; the balloon rides with Victor Hess to test radiation at high altitudes; and the co-authoring of this book. It was the fundamental textbook on radioactive materials, isotopes and detection for the next generation of researchers, those who would take the science forward into the nuclear age. Each author went on to great further success. Paneth is credited with the discovery of "free radicals", unstable molecules with an unpaired electrons that can compromise organic cell stability. De Hevesy discovered the element hafnium and received the Nobel Prize in Chemistry in 1943 for his continuing work on isotopic tracing.…

664672 p. George Charles de Hevesy (18851966) was a radiochemist, Nobel laureate. He earned the Nobel Prize in Chemistry in 1943 "for his work on the use of isotopes as tracers in the study of chemical processes". Cover sunned, chipped at extremities. Otherwise in fine condition.

4to. 1/2 p. Gedr. Briefkopf. Lochung am linken Rand. An den Chemiker Albert Ladenburg: Haben Sie meinen verbindlichsten Dank für die wertvollen Aufklärungen. Ich werde mich Ihrem Vorschlage entsprechend fürs Loehsche Photometer entscheiden und mich mit Herrn Koel in Verbindung setzen. []".

4to. 1 p. Am linken Rand gelocht. An einen Kollegen: Ich erfahre soeben von Dr. Polányi die Nachricht Ihrer Berufung nach München und möchte nicht versäumen Sie zu diesem ehrenvollen Ruf zu beglückwünschen. Wenn ich mich recht erinnere haben Sie und Ihre Frau Gemahlin München stets als die Stadt bezeichnet in welcher sie besonders gerne weilen würden und so dürfte Ihnen München auch von diesem Standpunkte aus betrachtet höchst angenehm sein. []".…

Gr.-4to. 3 1/2 pp. Das Manuskript mit dem Titel Iron Transport Rate in the Neoplastic Organism".

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.…

First Edition. George de Hevesy's career encompassed both the discovery of a new element and the founding of isotopic tracer methodology, the latter earning him the Nobel Prize in Chemistry in 1943. His identification of hafnium in 1923, carried out in collaboration with the physicist Dirk Coster at Bohr's institute in Copenhagen, resolved a long-contested problem in periodic classification: it provided experimental confirmation of Bohr's prediction that element 72 should be a zirconium analogue rather than a rare earth, and a decisive refutation of Urbain's celtium claim, which had gone unchallenged for more than a decade. That the identification depended on X-ray spectroscopy rather than classical chemical analysis reflects the broader transformation of inorganic chemistry then underway, in which physical instrumentation was remaking the discipline's most fundamental methods. The four presentation copies offered here trace that work with unusual completeness: the original 1923 announcement marshalling spectroscopic and chemical evidence simultaneously against a competing priority claim and in support of Bohr's atomic theory; a technically precise 1925 paper demonstrating that a century of zirconium atomic weight determinations had been silently compromised by undetected hafnium contamination; a 1936 retrospective surveying the full evidentiary and theoretical basis of the discovery; and a 1951 contribution to a Festschrift for Manne Siegbahn in which Hevesy provides his most extended account of the episode, reconstructing the experimental sequence in detail and situating it within the history of atomic theory and analytical chemistry with the authority of three intervening decades. [with] Dirk Coster. "On the New Element Hafnium; reprinted from Nature, February 24, 1923." Edinburgh: R. & R. Clark, 1923. Offprint, small 8vo bifolium (176 × 118mm), pp. 3, [1]. Presentation copy. "The Atomic Weights of Zirconium and Hafnium; reprinted from Nature, March 7, 1925." Edinburgh: R. & R. Clark, 1925. Offprint, single leaf, printed on both sides, 8vo (223 × 144mm). Presentation copy. "The Discovery of Hafnium; reprinted from Current Science, Vol. V, No. 5, pp. 236-240, 1936." Bangalore: Indian Academy of Sciences, 1936. Offprint, 4to (246 × 186mm), pp. [1], 4, [1]. Presentation copy. "Historical Notes on the Discovery of Hafnium; in Arkiv för Kemi, Band 3, Nr. 58, pp. 543-548, 1951." Stockholm: Almqvist & Wiksells Boktryckeri AB, 1951. Offprint, 8vo (241 × 170mm), pp. 6. Presentation copy. Individual papers fully described HERE. Signed.…