Baur x (17 Ergebnisse)

Zustand: good. Befriedigend/Good: Durchschnittlich erhaltenes Buch bzw. Schutzumschlag mit Gebrauchsspuren, aber vollständigen Seiten. / Describes the average WORN book or dust jacket that has all the pages present.

The simultaneously hermaphroditic land snail Arianta arbustorum mates several times in the course of a reproductive season. Repeated matings might be adaptive for the male function of A. arbustorum to inseminate several "females." We designed an experiment to evaluate the effects of repeated mating on the female reproductive success of this hermaphrodite. Reproductive traits and survival were examined over 2 years in individuals that copulated several times per year (snails were kept in pairs), in individuals that copulated twice (once at the beginning of each year) or once (at the beginning of the first year only), and in individuals prevented from copulating (they were kept isolated). Copulations were not always reciprocally successful: 3 of 57 snails (5.3%) failed to produce fertile eggs, although their mates reproduced successfully. Similarly, 2 of 15 pairs (13.3%) failed to reproduce successfully. Snails allowed to mate repeatedly within each season tended to lay more eggs than snails that mated once per year. However, the numbers of hatchlings did not differ significantly between the two treatment groups, because eggs laid by snails allowed to mate repeatedly had a lower hatching success. Snails that remated in the second year laid more eggs that had higher hatching success, and thus produced more hatchlings than snails that mated once at the beginning of the first year only. Snails that were prevented from mating produced a few hatchlings (by self-fertilization) in the second year; their reproductive success was less than 1% of that of mated snails. Our results suggest that multiple mating is also adaptive for the female function of A. arbustorum by increasing female fecundity and fertility and serving as a hedge against unsuccessful copulations. 6 pp., 3 figs, 4.…

25. Reichenhaller Kolloquium vom 19.-21. Juni 1992. Bad Reichenhaller Forschungsanstalt für Krankheiten der Atmungsorgane. Dustri-Vlg. München-Deisenhofen. 1993. 290 S. m. Textabb. Kt.-2)Bild vom Einband. ISBN: 387185221X.

12 cm. VIII, 534 p. Hardcover. Versand aus Deutschland / We dispatch from Germany via Air Mail. Einband bestoßen, daher Mängelexemplar gestempelt, sonst sehr guter Zustand. Imperfect copy due to slightly bumped cover, apart from this in very good condition. Stamped. Sprache: Englisch.

Zustand: Sehr gut. Zustand: Sehr gut | Seiten: 320 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar.

Zustand: New. In English.

Zustand: Sehr gut. Zustand: Sehr gut | Seiten: 419 | Sprache: Englisch | Produktart: Bücher | Keine Beschreibung verfügbar.

Zustand: New. Standard reference book with selected data from the field of physics and chemistryStandard reference book with selected data from the field of physics and chemistryIncludes supplementary material: sn.pub/extrasZeolites and zeolite-like.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - A strictly systematic description of zeolite-type crystal structures was not available but is now presented in this series of volumes. It is designed as a reference work for zeolite chemists and materials scientists, but it also serves as a tool to interpret structural similarities and to derive new structures from known topologies.Zeolites and zeolite-like materials became important because of their ion exchange capacities and their outstanding catalytic properties. Millions of tons of zeolites have been produced in the past years for the oil refining industry alone and, in even greater quantities, as ion-exchanging softening agents for detergents. Numerous other applications, e.g., in environmental protection, farming, gas separation, medicine, and pharmacy, are known, making zeolites almost a necessity for daily life. Consequently, there are many research activities dealing with zeolite properties and characterization.…

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Zeolites and zeolite-like materials became important because of their ion exchange capacities and their outstanding catalytic properties. Millions of tons of zeolites have been produced in the past years for the oil refining industry alone and, in even greater quantities, as ion-exchanging softening agents for detergents. Numerous other applications, e.g., in environmental protection, farming, gas separation, medicine, and pharmacy, are known, making zeolites almost a necessity for daily life. Consequently, there are many research activities dealing with zeolite properties and characterization. However, a strictly systematic description of zeolite-type crystal structures was not available but is now presented in this series of volumes. It is designed as a reference work for zeolite chemists and materials scientists, but it also serves as a tool to interpret structural similarities and to derive new structures from known topologies.…

Zustand: New. Standard Reference Book with selected and easily retrievable data from the fields of physics and chemistry collected by acknowledged international scientists Also available online in www.springerLink.comhttp://www.landolt-boernstein.com.

Hardcover. Zustand: Brand New. 1st edition. 459 pages. 11.10x8.11x1.50 inches. In Stock.

Couverture rigide. Zustand: bon. RO60082380: 1980. In-4. Relié. Bon état, Couv. convenable, Dos satisfaisant, Intérieur frais. 248 pages. Illustré de nombreuses photos en noir et blanc et en couleur, hors texte. Annotations en page de garde. Avec Jaquette. . . Classification Dewey : 430-Langues germaniques. Allemand.…

POTSDAM (Fotomappe) 12 MAX BAUR FOTOS. Lichtbildwerkstätte Max Baur o.J., Ca. 21,5 x 18,5 cm. Titelblatt, 12 auf Karton montierte Fotos. Original-Flügelmappe mit montierten Rücken- und Titelschildern, im kartonierten Original-Schuber. 12 auf kräftiges chamoisfarbenes Papier montierte Original-Fotografien (Silbergelatine-Abzüge, ca. 8,5 x 13,5 cm) mit gedruckten Untertiteln. Komplett. Enthält folgende Fotografien: Stadtschloß, Stadtschloßruine, Alte Fahrt, Blücherplatz, Charlottenhof, Historische Mühle, Sanssoucci, Alter Markt (Nicolaikirche mit Rathaus), Heiliggeistkirche, Friedenskirche, Garnisonkirche, Winternacht (Garnisonkirche bei Nacht). Schuber leicht bestoßen. Gutes Exemplar.…

POTSDAM- GARNISONKIRCHE (MAX BAUR FOTO) ORIGINAL-PHOTOGRAPHIE (24 x 17,5 cm, im Passepartout (34 x 24,5 cm), auf dem Passepartout vom Fotografen in Bleistift eigenhändig bezeichnet und signiert Das Passepartout etrwas stock- und wasserfleckig, die s/w-Fotografie schön erhalten.

Große ORIGINAL-FOTOGRAPHIE (18 x 23,7 cm, leichte Gebrauchsspuren), am Unterrand eigenhändig bezeichnet und signiert - Die Eis.schirrten W 44 (dito zum gleichen Preis : Große ORIGINAL-FOTOGRAPHIE (24 x 18 cm), am Unterrand eigenhändig bezeichnet und signiert - Brockenblick v.(om) Bruchberg W 100).

Leipzig, Tauchnitz, 1909. Lex8vo. Original publishers half calf. XVI,766 pp. with 21 plates (8 chromolithographed) and 115 text figures with key tissue guards. Second edition.