herring p j (17 Ergebnisse)

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has soft covers. In good all round condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,400grams, ISBN:9781594931079.

J. mar. biol. Ass. UK (1992), 72, 12 pages agrafées de 17x24,50 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.

Hardcover. Zustand: Brand New. Herring, Carol (illustrator). 32 pages. 9.25x9.25x0.40 inches. In Stock.

Hardcover. Zustand: Fine. Zustand des Schutzumschlags: Fine. 1st Edition. 199 p. : ill. (some col., col. maps ; 27 cm. ; LOC No E78.G73 T72 2003 ; Dewey 323.1/197078/09034 ; OCLC 51804722 ; ISBN 9780792226321, 9780792227274, 9780792282235, 0792226321, 0792227271, 079228223X ; Brown cloth in color photographic dustjacket ; Contents: The Southern Plains Indian delegation - Delegations to Washington - The Sand Creek Massacre - Moving to the reservation - Red Cloud's ambush - Red Cloud - The Fort Marion experience - Pratt's vision - The Battle of the Little Bighorn - Custer's scouts - The defeat of the Nez Perce - Recording the stories - The Cheyenne outbreak - Ghost dance - The massacre at Wounded Knee ; Book.

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. Dust jacket in good condition. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,1150grams, ISBN:0123427509.

Zustand: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In fair condition, suitable as a study copy. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,850grams, ISBN:9780521392075.

Zustand: Good. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. In good all round condition. No dust jacket. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,850grams, ISBN:9780521392075.

Zustand: Fair. This is an ex-library book and may have the usual library/used-book markings inside.This book has hardback covers. Clean from markings. In fair condition, suitable as a study copy. No dust jacket. Some moderate foxing, including on page edges. Please note the Image in this listing is a stock photo and may not match the covers of the actual item,850grams, ISBN:9780521392075.

There has previously been some dispute over the source of the light of Heteroteuthis. Light and electron microscopy have shown that there are no bacteria in the cavity of the luminous gland, but rather a population of spherical vesicles of varying size and content, surrounded by dense interstitial material. The contents are secreted by the cells surrounding the gland via a microvillous brush border that contains cilia. The gland is surrounded by a reflector layer made up of iridophores, whose structure differs considerably in the proximal, lateral and cap regions. The ink sac contains masses of spherical dense granules and its wall cells have many microvilli extending amongst these granules. 13 pp., 2 figs, 5 pls, gr. 8.

The general morphology and ultrastructure of the epidermal and arm tip photophores of H. macrohista have been compared. Both types of photophore have similar structures and the photocytes of each are characterized by dense aggregations of endoplasmic reticulum. The filter region of the epidermal photophores contains protoporphyrin. 12 pp., 1 fig., 4 pls, gr. 8.

Examples of the ocular, digestive gland and brachial end-organ photophores of specimens from all 13 cranchiid genera are described. The cranchiine and taoniine subgroups have different ocular photophore morphologies, but very similar brachial end-organs in adult females. Most taoniines have ocular photophores that contain large numbers of crystalloids, but these are lacking in Helicocranchia and Sandalops. There are no crystalloids in cranchiine ocular photophores, in taoniine digestive gland photophores (Megalocranchia) or in the brachial end-organs of both groups. The cranchiine Leachia atlantica uniquely has one group of photocytes that contain aggregates with some similarities to the taoniine crystalloids. The end-organs of mature females have a glandular structure; the deciduous photocytes are structurally different from those present in the ocular or digestive gland photophores. The reflectors of Sandalops and Megalocranchia contain unusual arrangements of iridosomal platelets. End-organs lack any reflective structures. The comparative anatomy of the photophores supports the separation of the cranchiine and taoniine groups but the ultrastructural detail provides common links between the two. 18 pp., 10 figs, 4.

Pyroteuthis margaritifera has morphologically distinctive photophores on the tentacles, eyeball and in the mantle cavity. The photogenic tissue in each photophore is identical, has a blue-green fluorescence and luminesces on treatment with dilute hydrogen peroxide. The photocytes frequently contain organized fibrillar material akin to that in the photocytes of certain other cephalopods. Several different types of blood vessel are present among the photocytes, including some, apparently restricted to the photophores, with a microvillous endothelium. Haemocyanin is present not only within identifiable blood vessels but also in some intercellular spaces. On the basis of their characteristic optical systems the photophores can be separated into three types: (1) tentacular; (2) ocular and anal; (3) branchial and median abdominal. The tentacular photophores have collagenous reflector and light guide systems and the median ones are double organs. The ocular and anal organs do not have collagenous optical structures but an elaborate variety of reflective iridosomes. Those in the aperture of the photophores appear to act as interference filters. The branchial and abdominal organs have iridosomes as the major reflective tissue but collagenous fibrils function as light guides in the aperture of these organs and their emission is diffuse rather than collimated. 18 pp., 2 figs, 7 pls, gr. 8.

The ocular photophore of Bathothauma emits light. The presumed photogenic tissue is cellular and contains a mass of highly organized crystalloids. One of its surface abuts against a fibrous system that probably acts as a light guide. The rest of the organ is surrounded by a pigment screen of modified iridophores. 20 pp., 2 figs, 6 pls, gr. 8.

Females and juveniles of Selenoteuthis scintillans have photophores of several structural types, distributed on the tentacles and eyeballs, and within the mantle cavity and tail. Three distinct photophore types can be recognized on the basis of their accessory structures, though their photocytes are identical. The tail and some tentacular photophores (Type 1) lack any accessory optical structures; other tentacular and abdominal photophores (Type 2) have collagenous diffusing fibres; the anal and ocular photophores (Type 3) have a variety of iridosomes but no collagen. The distal tentacular organ is a double structure composed of a unit each of Type 1 and Type 2. Ocular photophores 1 and 5 are also double structures, composed of two Type 3 units. The photophores closely resemble in structure those of Lycoteuthis diadema. The photocytes have a marked fluorescence and luminesce on treatment with dilute hydrogen peroxide. The bio-luminescence intensity of the tail organ may be modified by chromatophore movements and has a blue-green spectral emission. The photophores of juvenile Lampadioteuthis megaleia are similar in structure to those of Selenoteuthis but somewhat less complex. A comparison between the morphology of the photophores of lycoteuthid and enoploteuthid squids emphasizes the close similarity between the two families. At the ultrastructural level, certain photophores of both families have very characteristic microvillous blood vessels associated with the photocytes. 23 pp., 3 figs, 11 pls, gr. 8.

Zustand: gut. Prospects in Aging (The 1992 Sandoz Lectures in Gerontology) In englischer Sprache. pages.

Zustand: New. The theme of this 1990 book is central to our understanding of the interaction between living organisms and their environments. Editor(s): Herring, Peter J.; Campbell, Anthony K.; Whitfield, Michael; Maddock, Linda. Num Pages: 366 pages, index. BIC Classification: TQ. Category: (U) Tertiary Education (US: College). Dimension: 246 x 189 x 21. Weight in Grams: 78. . 1990. Illustrated. hardcover. . . . . Books ship from the US and Ireland.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Without light there would be no life in the sea. Since the seas were the cradle for the evolution of all life forms, the theme of this book is central to our understanding of the interaction between living organisms and their environments. To express the breadth of research in this area, leading experts in topics as diverse as satellite imagery and molecular biology have contributed to this collection of essays on light and life in the sea, first published in 1990. Intended for all with an interest in the marine environment, this book aims to present the reader with a sampler of the exciting research that is underway and to provide an introduction to its broad compass.