köie (54 risultati)

Reprinted from Ophelia, Vol. 9, N° 1, October 1971, 17,50x25 cm, broché, 44 pages Bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Reprinted from Ophelia, Vol. 9, N° 1, October 1971, plaquette de 17,50x25 cm, 20 pages Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Ophelia, 15(1), June 1976, plaquette de 17,50x25 cm, 14 pages Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Ophelia, 12, December 1973, plaquette de 17,50x25 cm, 16 pages Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Marine Biological Laboratory, Helsingor, Denmark - 1985, plaquette de 17,50x25 cm, 20 pages, un tableau dépliant in fine Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Reprinted from : Ophelia, vol. 6, July 1969, plaquette de 17,50x25 cm, 30 pages Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Ophelia, 13, March 1975, 24 pages agrafées de 17,50x25 cm Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Reprinted from Ophelia, Vol. 9, N° 1, October 1971, plaquette de 17,50x25 cm, 32 pages Très bon état - Pour les envois hors de France, la tafication «livre & brochure» pour les frais de port a disparue.Les frais de port annoncés correspondent à une moyenne. Ils seront calculés au plus juste en fonction du poids de votre article.

Hardcover. Condizione: Gut. OPp., 8°, 350 S., Abb., Zeichnungen von Susanne Weitemeyer, guter Zustand.

1st ed. - Softcover.

Condizione: 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.

inb. Condizione: As New.

The body wall of the daughter sporocyst of Cercaria buccini has been examined by means of the light microscope, scanning and transmission electron microscopes, and the effect on the host, the carnivorous prosobranch Buccinum undatum, has been described both at the light microscopical and ultrastructural levels. The sporocyst is provided with long microvilli. Large extrusions distended by a large vesicle and with pores through which the contents of the vesicle can be released into the host tissue are found between the microvilli. The stereoscan micrographs revealed about 5 µ long cilia scattered all over the sporocyst surface; each cilium is apparently a part of a sensory structure. The tegument contains high concentrations of acid and alkaline phosphatases and small concentrations of non-specific esterase and aminopeptidase. The host tissue surrounding the sporocyst was always found in an advanced stage of histolysis. The extracorporeally digested host tissue must be absorbed through the sporocyst wall and subsequently be used by the developing cercariae. 19 pp., 13 figs, br. gr. 8.

Hardcover. Condizione: Fair. No Jacket. pp.(iv)+324. 18.5cm. Tinted lithographic frontispiece. LACKS the 5 plates. All edges gilt. Recently rebound in dark brown cloth with red label lettered in gilt and with gilt rules. New end papers. Slight soiling. A fair copy. Bagnall 3578. A previous owner has provided an index in ink on both sides of a small sheet of paper which is loosely inserted. Many islands and individuals are named in the text.

Condizione: VG. København 1938. Memoires de l'Academie Royale des Sciences et des Lettres de Danemark. 4to., 85p. with 2 glossy photo plates. original printed wraps. VG plus, no ownership marks.

The egg of Fasciola hepatica has a smooth surface with a slightly elevated circle marking the fracture of the operculum. The operculum and the aperture have crenated edges. The epithelial cells of the miracidium are covered with long cilia. When miracidia are vibrated in an ultrasonic cleaner the cilia of the epithelial cells of the four posterior tiers are broken off only leaving longitudinal rows of cilium stubs, whereas the cilia of the first tier are still retained. The apical papilla is provided with a dorso-ventral furrow, multiciliated pits and isolated sensory cilia. The narrow intercellular ridge is smooth, whereas the epithelial cells have small cytoplasmic knobs between the cilia. The penetration into the snail (Lymnaea truncatula) and the transformation into sporocyst may be separated into three phases. (1) Less than 1 min after attachment to the snail the ciliated cells of the anterior tier are shed and swim away. (2) The cilia of the remaining cells beat violently and after about 5 min most cilia are broken off near the cell surface. The miracidium remains for about 15 min embedded as far as the intercellular ridge receptors (lateral papillae and sheathed ciliated nerve endings). During this period extensive contraction and relaxation of the body are performed. (3) The final penetration of the snail epithelium takes about 15 min. Simultaneously with the penetration into the snail tissue the "bald" cells (epithelial cells with cilium stubs only) of the four posterior tiers loosen, form globules and fall off. The surface below the cells is smooth and in cytoplasmic continuity with the intercellular ridge and the apical papilla, and this syncytium forms the later tegument of the sporocyst. After a few days the tegument of the sporocyst is provided with microvillus-like projections and the apical papilla and sensory structures are lost. 12 pp., 26 figs, gr. 8.

Whole miracidia of Schistosoma mansoni, miracidia vibrated in an ultrasonic cleaner, and the miracidium-sporocyst transition were studied in the steroscan electron microscope. After vibrating, the cilia broke off near the bases and the epidermal cella, intercellular ridge and sensory structures were revealed. The apical papilla had a folded surface with penetrating sensory cilia. The number of epidermal cells varied between 17 and 22. The lateral papillae appeared as bulbous projections on either side between the first and second tiers of epidermal cells. There was a ciliated pit nerve ending close to each lateral papilla. A few ciliated pits were found between the cells in the first tier, and up to twelve ciliated pits with long cilia could be found between the second and third tiers. Miracidia placed in haemolymph from Planorbarius corneus cast off the apical ciliated part of the epithelial cells, and large scars appeared where the ciliated plates had been. Later, the syncytial intercellular ridge dispersed throughout the surface of the mother sporocyst, and small cytoplasmic knobs appeared on the surface. The apical papilla and the lateral papillae were still observed a few hours after shedding the ciliated plates, but the ciliated pits disappeared shortly after the ciliated plates were lost. 10 pp., 12 figs, gr. 8.

24 pp., 11 figs, gr. 8.

8°, Brosch., 48 S. Buch.

OPappband. Mit Zeichnungen von Susanne Weitemeyer. 350 Seiten mit zahlreichen farbigen Abbildungen. Guter Zustand. Size: 8°.

Colour photographic plates, 57pp. Text in Japanese and English. 24 x 24.5cm. A very good paperback copy. From the library of Aubrey and Eva Sweet with a small label indicating the collection number on the spine.

paperback. 270x215mm, 85pages, En cas de problème de commande, veuillez nous contacter via notre page d'accueil / If there is a problem with the order, please contact us via our homepage.

Condizione: Fine. Number of books: 1 book.

Condizione: Fine. Number of books: 1 book.

Condizione: Fine. Number of pages: 239p Size: 22cm Number of books: 1.

Condizione: Fine. Number of pages: 77 pages Number of books: 1 book.

Condizione: Fine. Number of books: 1 book.

Condizione: Fine. Number of books: 1 book.

Condizione: Fine. Number of books: 1 book.

Condizione: Fine. The book is in fine condition.