Libros de Estudios generales de biología, página 36 de 125

Invertebrates presents a modern survey of the 34 animal phyla (plus the Protista) and serves as both a college course text and a reference on invertebrate biology. Thorough and up-to-date, it is organized around the themes of bauplans (body plans) and evolution (phylogenetics). Each phylum is organized in a standardized fashion, treating the systematics, bauplan (support and movement, feeding and digestion, circulation and gas exchange, excretion and osmoregulation, nervous system, reproduction and development), and phylogeny. Detailed classifications, phylogenetic trees, and references for all phyla are provided. Tables summarize each phylum's defining attributes. The text is accompanied by an abundance of detailed line drawings and-new to this edition-color photographs.

The top required and recommended immunology text worldwide, Cellular and Molecular Immunology by Drs. Abul K. Abbas, Andrew H. H. Lichtman, and Shiv Pillai, is a clear, well-written, and superbly illustrated introduction to the field. The 9th Edition retains a practical, clinical focus while updating and revising all content to ensure clarity and comprehension, bringing readers fully up to date with new and emerging information in this challenging area.Highlights the implications of immunologic science for the management of human disease, emphasizing clinical relevance throughout.Provides a highly visual, full-color description of the key immunologic and molecular processes with a fully updated, comprehensive, and consistent art program.Helps readers grasp the details of experimental observations that form the basis for the science of immunology at the molecular, cellular, and whole-organism levels and draw the appropriate conclusions.Includes summary boxes that assist with rapid review and mastery of key material.Student Consult eBook version included with purchase. This enhanced eBook experience allows you to search all of the text, figures, references and animations, designed to produce a more rounded learning experience.Features updates from cover to cover, including tumor immunity (tumor antigens, cancer immunotherapy), immune checkpoints, cytosolic sensors for DNA, non-canonical inflammasomes, prionization as a signaling mechanism, monogenic defects in immunity, and more.

.

Los biomateriales humanos separados del cuerpo (tejidos, órganos, sangre, gametos) son un recurso social cuya relevancia es cada vez mayor para la sanidad, la reproducción y la investigación, gracias al desarrollo y expansion de sus tecnicas de extraccion, conservacion y transmision. Este nuevo recurso requiere un regimen juridico unitario que regule su estatuto, su uso y su disposicion. Si el regimen general en este ambito ha sido el de la no patrimonialidad y la prohibicion del lucro, en las ultimas decadas se observan grietas en la vigencia general de estos principios, y una presion cada vez mayor para la liberalizacion del comercio de lo Ocorporal". Este libro aborda una serie de cuestiones vinculadas con este problema, desde las mas generales (la busqueda de nuevos fundamentos filosoficos y juridico-constitucionales para reforzar el regimen no patrimonial) hasta otras mas concretas (gestacion por sustitucion, propiedad privada de las partes separadas del cuerpo, reproduccion asistida, uso y disposicion de datos masivos de salud). La diversidad de los puntos de vista de los autores permite ademas tomar conciencia de cuales son los terminos de algunos de los debates bioeticos actuales mas controvertidos.

When a scientific journal like "Oecologia Aquatica" reaches its tenth issue, it is perhaps not an occasion for extraordinary celebration. However, if it turn out that this coincides with a series of unusual circunstances, then the perspective changes somewhat. Moreover, if the editors hasten to confess that this modest milestone of issue nª 10 was really taken as an excuse to pay tribute to Professor Ramon Margalef, who was the founder, the first director and the driving force behind the journal, we can be forgiven for waiting to celebrate.