X b chen (22 Ergebnisse)

XI, 171 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.

237 S. Ill. 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. Developments in quaternary science, 9. Sprache: Englisch. …

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.…

Zustand: New. This is a Brand-new US Edition. This Item may be shipped from US or any other country as we have multiple locations worldwide.

Zustand: Used. pp. vii + 212.

Zustand: Used. pp. vii + 212.

Hardcover. Zustand: Brand New. 2nd edition. 255 pages. 9.25x6.10x9.49 inches. In Stock.

Zustand: New. In English.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book introduces readers to the theory and practice of extrusion bioprinting of scaffolds for tissue engineering and modeling. The text emphasizes the fundamentals and practical applications of extrusion bioprinting for scaffold fabrication, in a manner particularly suitable for those (including both undergraduate and graduate students) who wish to master the subject matter and apply it to real tissue engineering. Readers will learn how to design, fabricate, and characterize tissue scaffolds to be created by extrusion bioprinting technologies. This book:Covers tissue engineering and various scaffold fabrication techniquesPresents the general requirements imposed on scaffolds and the scaffold design processDiscusses the preparation and characterization of biomaterials and bioink for extrusion bioprintingEducates readers regarding how to bioprint and characterize scaffolds with living cells for tissue engineering and modelingIntroduces the common methods/ techniques used to measure and characterize the mechanical properties of native tissues and scaffoldsDiscusses various approaches to create vascular networks within tissue scaffolds to facilitate their functionsIntroduces the concept of controlled release and the common strategies for regulating biomolecules in tissue engineering and printed scaffoldsIncludes many case studies of bioprinting and characterizing scaffolds for tissue engineering and modeling, to reflect the recent advances in the field of bioprinting.…

Zustand: New. In English.

Zustand: New. Benzenoid hydrocarbons in space: The evidence and implications.- The distortive tendencies of delocalized ? electronic systems. Benzene, cyclobutadiene and related heteroannulenes.- The spin-coupled valence bond description of benzenoid aromatic molecules.-.

Taschenbuch. Zustand: Neu. Extrusion Bioprinting of Scaffolds for Tissue Engineering | Daniel X. B. Chen | Taschenbuch | xiv | Englisch | 2025 | Springer | EAN 9783031724732 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu. …

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture has a long history of coordinating isotope aided research projects for improving animal productivity in developing countries. These projects have focused on enhancing the efficiency of animal production through better use of locally available feed resources and those that do not compete with human food. As a part of these efforts, the Joint Division has been actively involved in developing and simplifying approaches for measuring microbial protein supply to ruminant livestock. The contribution of microbial protein in meeting the overall requirement for protein in ruminants is significant, but understanding the contribution of microbial protein to the nutrition of ruminant livestock has been hampered by the lack of simple and accurate methods for measuring microbial protein production in vivo. A Consultants' Meeting was held in 1995 in Vienna to explore the feasibility of using nuclear and related techniques to develop and validate new approaches for measuring microbial protein supply in ruminant animals. Based on the available information, the consultants considered that the purine derivative excretion method, which is non-invasive and both simple to use and inexpensive compared with other available methods, had the potential for use in developing countries. However, development of models for various animal species and breeds and their validation were required before this technique could be advocated for use.…

Paperback. Zustand: Brand New. 224 pages. 9.25x6.10x0.51 inches. In Stock.

Taschenbuch. Zustand: Neu. Estimation of Microbial Protein Supply in Ruminants Using Urinary Purine Derivatives | X. B. Chen (u. a.) | Taschenbuch | vii | Englisch | 2013 | Springer Netherland | EAN 9789401714778 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.…

Hardcover. Zustand: Brand New. 1st edition. 212 pages. 10.00x6.75x0.50 inches. In Stock.

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book introduces readers to the theory and practice of extrusion bioprinting of scaffolds for tissue engineering and modeling. The text emphasizes the fundamentals and practical applications of extrusion bioprinting for scaffold fabrication, in a manner particularly suitable for those (including both undergraduate and graduate students) who wish to master the subject matter and apply it to real tissue engineering. Readers will learn how to design, fabricate, and characterize tissue scaffolds to be created by extrusion bioprinting technologies. This book:Covers tissue engineering and various scaffold fabrication techniquesPresents the general requirements imposed on scaffolds and the scaffold design processDiscusses the preparation and characterization of biomaterials and bioink for extrusion bioprintingEducates readers regarding how to bioprint and characterize scaffolds with living cells for tissue engineering and modelingIntroduces the common methods/ techniques used to measure and characterize the mechanical properties of native tissues and scaffoldsDiscusses various approaches to create vascular networks within tissue scaffolds to facilitate their functionsIntroduces the concept of controlled release and the common strategies for regulating biomolecules in tissue engineering and printed scaffoldsIncludes many case studies of bioprinting and characterizing scaffolds for tissue engineering and modeling, to reflect the recent advances in the field of bioprinting.…

Buch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - The Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture has a long history of coordinating isotope aided research projects for improving animal productivity in developing countries. These projects have focused on enhancing the efficiency of animal production through better use of locally available feed resources and those that do not compete with human food. As a part of these efforts, the Joint Division has been actively involved in developing and simplifying approaches for measuring microbial protein supply to ruminant livestock. The contribution of microbial protein in meeting the overall requirement for protein in ruminants is significant, but understanding the contribution of microbial protein to the nutrition of ruminant livestock has been hampered by the lack of simple and accurate methods for measuring microbial protein production in vivo. A Consultants' Meeting was held in 1995 in Vienna to explore the feasibility of using nuclear and related techniques to develop and validate new approaches for measuring microbial protein supply in ruminant animals. Based on the available information, the consultants considered that the purine derivative excretion method, which is non-invasive and both simple to use and inexpensive compared with other available methods, had the potential for use in developing countries. However, development of models for various animal species and breeds and their validation were required before this technique could be advocated for use.…

Zustand: New. * Examines the transition from foraging societies of the Late Paleolithic to the emergence of settled farming societies and the emergent pastoralism of the middle Neolithic* Explores explanatory models for the links between climate change and cultural chang.

Hardcover. Zustand: Brand New. 1st edition. 237 pages. 11.75x8.50x0.50 inches. In Stock.

Zustand: New. 2007. 1st Edition. hardcover. . . . . . Books ship from the US and Ireland.