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This manual is a step-by-step method of two basic catheterizations in the laboratory rat. These vascular surgeries are the most widely used procedures in research laboratories around the world from drug discovery application to critical compound administration and blood sampling. The unique presentation of this manual brings together all aspects of surgery with listed materials, high resolution pictures, and method descriptions for each step. Chapters focus on surgical technique while addressing animal welfare. Comprehensive information on anatomy, catheter materials, applications, and rat biodata are compiled from multiple resources. The book's easy, flip chart style and combination of reference materials will enable any technician to learn these surgeries effectively and efficiently in a single source for the first time. Angela Heiser's extensive experience in performing and training scientists in these surgical procedures in academia and the pharmaceutical industry for over twenty-five years ensures the practicality of the manual. The field of animal science is highly regulated to ensure humane and ethical care in the use of laboratory animals as required by the Animal Welfare Act. This comprehensive and concise guide will support animal welfare by improving the understanding of important concepts such as sterile handling, anesthetic stages, and health monitoring. Individuals dedicated to applying these mandates through quality training and education will appreciate this contribution as a unique teaching and learning tool.

Animal physiology. Animal biophysics --- Zoomorphology. Zooanatomy --- morfologie --- fysiologie --- zoölogie

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Dormancy is a suspension of the vital functions in an organism to overcome harsh environmental conditions, and sometimes can last for centuries. It is a widespread adaptation in many phyla, ranging from bacteria to vertebrates, and may exert a great influence on aquatic communities. Contributors to this new book are leaders in the field of diapause studies, and many authors were participants at a recent workshop on diapause in aquatic invertebrates (Pallanza, Italy 2003). The book consists of two major parts, as indicated in its title: Phenomenology of diapause and significance of this adaptation in scientific and practical uses. Application to newly developing areas such as cultivation of live food, like rotifers or Artemia, in modern aquaculture is covered, as are aspects of diapause that promote the colonization of new environments by facilitating the passive transport of resting stages of invasive species. Creation of artificial ecosystems outside of the Earth's biosphere using dormant propagules becomes an actual possibility as humankind develops plans to colonize our nearest planets. Also, studies on the vertical distribution of resting stages in undisturbed sediment cores yield important ecological and evolutionary information useful in investigations of past environments. Throughout the book properties of diapause and individual peculiarities of this ancient and well-developed adaptive phenomenon are regarded in evolutionarily distant groups such as Rotifers, Crustaceans and Insects.

General ecology and biosociology --- Invertebrates --- Zoology --- invertebraten --- ecologie --- zoölogie

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Ethnology. Cultural anthropology --- General palaeontology --- Zoology --- zoölogie --- primaten --- paleontologie

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General ecology and biosociology --- Invertebrates --- Zoology --- invertebraten --- ecologie --- zoölogie

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Les œuvres complètes de Buffon se confondent pratiquement avec sa monumentale entreprise, l'Histoire naturelle, dont les trente-six volumes parurent de 1749 à 1789. Cet ouvrage, souvent réédité jusqu'à la fin du XIXe siècle, ne l'a plus été depuis lors. Nous proposons donc ici pour la première fois l'intégralité de ce texte sous une forme qui corresponde aux critères actuels de l'édition scientifique.

Animal systematics, taxonomy, nomencl. --- French literature --- Natural history --- Sciences naturelles. --- Oiseaux. --- Zoologie. --- Singes.